[331] | 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 |
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| 23 | #include "curl_setup.h"
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| 24 |
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| 25 | #ifdef HAVE_NETINET_IN_H
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| 26 | #include <netinet/in.h>
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| 27 | #endif
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| 28 | #ifdef HAVE_NETDB_H
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| 29 | #include <netdb.h>
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| 30 | #endif
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| 31 | #ifdef HAVE_ARPA_INET_H
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| 32 | #include <arpa/inet.h>
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| 33 | #endif
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| 34 | #ifdef HAVE_NET_IF_H
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| 35 | #include <net/if.h>
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| 36 | #endif
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| 37 | #ifdef HAVE_SYS_IOCTL_H
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| 38 | #include <sys/ioctl.h>
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| 39 | #endif
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| 40 |
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| 41 | #ifdef HAVE_SYS_PARAM_H
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| 42 | #include <sys/param.h>
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| 43 | #endif
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| 44 |
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| 45 | #ifdef __VMS
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| 46 | #include <in.h>
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| 47 | #include <inet.h>
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| 48 | #endif
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| 49 |
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| 50 | #ifdef HAVE_SYS_UN_H
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| 51 | #include <sys/un.h>
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| 52 | #endif
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| 53 |
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| 54 | #ifndef HAVE_SOCKET
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| 55 | #error "We can't compile without socket() support!"
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| 56 | #endif
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| 57 |
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| 58 | #ifdef HAVE_LIMITS_H
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| 59 | #include <limits.h>
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| 60 | #endif
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| 61 |
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| 62 | #ifdef USE_LIBIDN2
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| 63 | #include <idn2.h>
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| 64 |
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| 65 | #elif defined(USE_WIN32_IDN)
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| 66 | /* prototype for curl_win32_idn_to_ascii() */
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| 67 | bool curl_win32_idn_to_ascii(const char *in, char **out);
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| 68 | #endif /* USE_LIBIDN2 */
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| 69 |
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| 70 | #include "urldata.h"
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| 71 | #include "netrc.h"
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| 72 |
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| 73 | #include "formdata.h"
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| 74 | #include "mime.h"
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| 75 | #include "vtls/vtls.h"
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| 76 | #include "hostip.h"
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| 77 | #include "transfer.h"
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| 78 | #include "sendf.h"
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| 79 | #include "progress.h"
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| 80 | #include "cookie.h"
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| 81 | #include "strcase.h"
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| 82 | #include "strerror.h"
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| 83 | #include "escape.h"
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| 84 | #include "strtok.h"
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| 85 | #include "share.h"
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| 86 | #include "content_encoding.h"
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| 87 | #include "http_digest.h"
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| 88 | #include "http_negotiate.h"
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| 89 | #include "select.h"
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| 90 | #include "multiif.h"
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| 91 | #include "easyif.h"
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| 92 | #include "speedcheck.h"
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| 93 | #include "warnless.h"
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| 94 | #include "non-ascii.h"
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| 95 | #include "inet_pton.h"
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| 96 | #include "getinfo.h"
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| 97 |
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| 98 | /* And now for the protocols */
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| 99 | #include "ftp.h"
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| 100 | #include "dict.h"
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| 101 | #include "telnet.h"
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| 102 | #include "tftp.h"
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| 103 | #include "http.h"
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| 104 | #include "http2.h"
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| 105 | #include "file.h"
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| 106 | #include "curl_ldap.h"
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| 107 | #include "ssh.h"
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| 108 | #include "imap.h"
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| 109 | #include "url.h"
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| 110 | #include "connect.h"
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| 111 | #include "inet_ntop.h"
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| 112 | #include "http_ntlm.h"
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| 113 | #include "curl_ntlm_wb.h"
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| 114 | #include "socks.h"
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| 115 | #include "curl_rtmp.h"
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| 116 | #include "gopher.h"
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| 117 | #include "http_proxy.h"
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| 118 | #include "conncache.h"
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| 119 | #include "multihandle.h"
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| 120 | #include "pipeline.h"
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| 121 | #include "dotdot.h"
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| 122 | #include "strdup.h"
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| 123 | #include "setopt.h"
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| 124 |
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| 125 | /* The last 3 #include files should be in this order */
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| 126 | #include "curl_printf.h"
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| 127 | #include "curl_memory.h"
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| 128 | #include "memdebug.h"
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| 129 |
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| 130 | /* Local static prototypes */
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| 131 | static struct connectdata *
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| 132 | find_oldest_idle_connection_in_bundle(struct Curl_easy *data,
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| 133 | struct connectbundle *bundle);
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| 134 | static void conn_free(struct connectdata *conn);
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| 135 | static void free_fixed_hostname(struct hostname *host);
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| 136 | static void signalPipeClose(struct curl_llist *pipeline, bool pipe_broke);
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| 137 | static CURLcode parse_url_login(struct Curl_easy *data,
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| 138 | struct connectdata *conn,
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| 139 | char **userptr, char **passwdptr,
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| 140 | char **optionsptr);
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| 141 | static unsigned int get_protocol_family(unsigned int protocol);
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| 142 |
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| 143 | /* Some parts of the code (e.g. chunked encoding) assume this buffer has at
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| 144 | * more than just a few bytes to play with. Don't let it become too small or
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| 145 | * bad things will happen.
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| 146 | */
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| 147 | #if READBUFFER_SIZE < READBUFFER_MIN
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| 148 | # error READBUFFER_SIZE is too small
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| 149 | #endif
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| 150 |
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| 151 |
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| 152 | /*
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| 153 | * Protocol table.
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| 154 | */
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| 155 |
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| 156 | static const struct Curl_handler * const protocols[] = {
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| 157 |
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| 158 | #ifndef CURL_DISABLE_HTTP
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| 159 | &Curl_handler_http,
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| 160 | #endif
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| 161 |
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| 162 | #if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
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| 163 | &Curl_handler_https,
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| 164 | #endif
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| 165 |
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| 166 | #ifndef CURL_DISABLE_FTP
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| 167 | &Curl_handler_ftp,
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| 168 | #endif
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| 169 |
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| 170 | #if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
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| 171 | &Curl_handler_ftps,
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| 172 | #endif
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| 173 |
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| 174 | #ifndef CURL_DISABLE_TELNET
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| 175 | &Curl_handler_telnet,
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| 176 | #endif
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| 177 |
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| 178 | #ifndef CURL_DISABLE_DICT
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| 179 | &Curl_handler_dict,
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| 180 | #endif
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| 181 |
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| 182 | #ifndef CURL_DISABLE_LDAP
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| 183 | &Curl_handler_ldap,
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| 184 | #if !defined(CURL_DISABLE_LDAPS) && \
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| 185 | ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
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| 186 | (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
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| 187 | &Curl_handler_ldaps,
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| 188 | #endif
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| 189 | #endif
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| 190 |
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| 191 | #ifndef CURL_DISABLE_FILE
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| 192 | &Curl_handler_file,
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| 193 | #endif
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| 194 |
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| 195 | #ifndef CURL_DISABLE_TFTP
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| 196 | &Curl_handler_tftp,
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| 197 | #endif
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| 198 |
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| 199 | #ifdef USE_LIBSSH2
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| 200 | &Curl_handler_scp,
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| 201 | &Curl_handler_sftp,
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| 202 | #endif
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| 203 |
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| 204 | #ifndef CURL_DISABLE_IMAP
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| 205 | &Curl_handler_imap,
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| 206 | #ifdef USE_SSL
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| 207 | &Curl_handler_imaps,
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| 208 | #endif
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| 209 | #endif
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| 210 |
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| 211 | #ifndef CURL_DISABLE_POP3
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| 212 | &Curl_handler_pop3,
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| 213 | #ifdef USE_SSL
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| 214 | &Curl_handler_pop3s,
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| 215 | #endif
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| 216 | #endif
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| 217 |
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| 218 | #if !defined(CURL_DISABLE_SMB) && defined(USE_NTLM) && \
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| 219 | (CURL_SIZEOF_CURL_OFF_T > 4) && \
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| 220 | (!defined(USE_WINDOWS_SSPI) || defined(USE_WIN32_CRYPTO))
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| 221 | &Curl_handler_smb,
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| 222 | #ifdef USE_SSL
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| 223 | &Curl_handler_smbs,
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| 224 | #endif
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| 225 | #endif
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| 226 |
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| 227 | #ifndef CURL_DISABLE_SMTP
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| 228 | &Curl_handler_smtp,
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| 229 | #ifdef USE_SSL
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| 230 | &Curl_handler_smtps,
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| 231 | #endif
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| 232 | #endif
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| 233 |
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| 234 | #ifndef CURL_DISABLE_RTSP
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| 235 | &Curl_handler_rtsp,
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| 236 | #endif
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| 237 |
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| 238 | #ifndef CURL_DISABLE_GOPHER
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| 239 | &Curl_handler_gopher,
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| 240 | #endif
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| 241 |
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| 242 | #ifdef USE_LIBRTMP
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| 243 | &Curl_handler_rtmp,
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| 244 | &Curl_handler_rtmpt,
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| 245 | &Curl_handler_rtmpe,
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| 246 | &Curl_handler_rtmpte,
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| 247 | &Curl_handler_rtmps,
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| 248 | &Curl_handler_rtmpts,
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| 249 | #endif
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| 250 |
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| 251 | (struct Curl_handler *) NULL
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| 252 | };
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| 253 |
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| 254 | /*
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| 255 | * Dummy handler for undefined protocol schemes.
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| 256 | */
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| 257 |
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| 258 | static const struct Curl_handler Curl_handler_dummy = {
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| 259 | "<no protocol>", /* scheme */
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| 260 | ZERO_NULL, /* setup_connection */
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| 261 | ZERO_NULL, /* do_it */
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| 262 | ZERO_NULL, /* done */
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| 263 | ZERO_NULL, /* do_more */
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| 264 | ZERO_NULL, /* connect_it */
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| 265 | ZERO_NULL, /* connecting */
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| 266 | ZERO_NULL, /* doing */
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| 267 | ZERO_NULL, /* proto_getsock */
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| 268 | ZERO_NULL, /* doing_getsock */
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| 269 | ZERO_NULL, /* domore_getsock */
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| 270 | ZERO_NULL, /* perform_getsock */
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| 271 | ZERO_NULL, /* disconnect */
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| 272 | ZERO_NULL, /* readwrite */
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| 273 | ZERO_NULL, /* connection_check */
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| 274 | 0, /* defport */
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| 275 | 0, /* protocol */
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| 276 | PROTOPT_NONE /* flags */
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| 277 | };
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| 278 |
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| 279 | void Curl_freeset(struct Curl_easy *data)
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| 280 | {
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| 281 | /* Free all dynamic strings stored in the data->set substructure. */
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| 282 | enum dupstring i;
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| 283 | for(i = (enum dupstring)0; i < STRING_LAST; i++) {
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| 284 | Curl_safefree(data->set.str[i]);
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| 285 | }
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| 286 |
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| 287 | if(data->change.referer_alloc) {
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| 288 | Curl_safefree(data->change.referer);
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| 289 | data->change.referer_alloc = FALSE;
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| 290 | }
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| 291 | data->change.referer = NULL;
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| 292 | if(data->change.url_alloc) {
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| 293 | Curl_safefree(data->change.url);
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| 294 | data->change.url_alloc = FALSE;
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| 295 | }
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| 296 | data->change.url = NULL;
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| 297 | }
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| 298 |
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| 299 | /*
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| 300 | * This is the internal function curl_easy_cleanup() calls. This should
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| 301 | * cleanup and free all resources associated with this sessionhandle.
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| 302 | *
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| 303 | * NOTE: if we ever add something that attempts to write to a socket or
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| 304 | * similar here, we must ignore SIGPIPE first. It is currently only done
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| 305 | * when curl_easy_perform() is invoked.
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| 306 | */
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| 307 |
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| 308 | CURLcode Curl_close(struct Curl_easy *data)
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| 309 | {
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| 310 | struct Curl_multi *m;
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| 311 |
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| 312 | if(!data)
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| 313 | return CURLE_OK;
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| 314 |
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| 315 | Curl_expire_clear(data); /* shut off timers */
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| 316 |
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| 317 | m = data->multi;
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| 318 |
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| 319 | if(m)
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| 320 | /* This handle is still part of a multi handle, take care of this first
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| 321 | and detach this handle from there. */
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| 322 | curl_multi_remove_handle(data->multi, data);
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| 323 |
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| 324 | if(data->multi_easy)
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| 325 | /* when curl_easy_perform() is used, it creates its own multi handle to
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| 326 | use and this is the one */
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| 327 | curl_multi_cleanup(data->multi_easy);
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| 328 |
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| 329 | /* Destroy the timeout list that is held in the easy handle. It is
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| 330 | /normally/ done by curl_multi_remove_handle() but this is "just in
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| 331 | case" */
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| 332 | Curl_llist_destroy(&data->state.timeoutlist, NULL);
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| 333 |
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| 334 | data->magic = 0; /* force a clear AFTER the possibly enforced removal from
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| 335 | the multi handle, since that function uses the magic
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| 336 | field! */
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| 337 |
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| 338 | if(data->state.rangestringalloc)
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| 339 | free(data->state.range);
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| 340 |
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| 341 | /* Free the pathbuffer */
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| 342 | Curl_safefree(data->state.pathbuffer);
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| 343 | data->state.path = NULL;
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| 344 |
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| 345 | /* freed here just in case DONE wasn't called */
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| 346 | Curl_free_request_state(data);
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| 347 |
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| 348 | /* Close down all open SSL info and sessions */
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| 349 | Curl_ssl_close_all(data);
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| 350 | Curl_safefree(data->state.first_host);
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| 351 | Curl_safefree(data->state.scratch);
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| 352 | Curl_ssl_free_certinfo(data);
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| 353 |
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| 354 | /* Cleanup possible redirect junk */
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| 355 | free(data->req.newurl);
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| 356 | data->req.newurl = NULL;
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| 357 |
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| 358 | if(data->change.referer_alloc) {
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| 359 | Curl_safefree(data->change.referer);
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| 360 | data->change.referer_alloc = FALSE;
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| 361 | }
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| 362 | data->change.referer = NULL;
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| 363 |
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| 364 | if(data->change.url_alloc) {
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| 365 | Curl_safefree(data->change.url);
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| 366 | data->change.url_alloc = FALSE;
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| 367 | }
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| 368 | data->change.url = NULL;
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| 369 |
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| 370 | Curl_safefree(data->state.buffer);
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| 371 | Curl_safefree(data->state.headerbuff);
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| 372 |
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| 373 | Curl_flush_cookies(data, 1);
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| 374 |
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| 375 | Curl_digest_cleanup(data);
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| 376 |
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| 377 | Curl_safefree(data->info.contenttype);
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| 378 | Curl_safefree(data->info.wouldredirect);
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| 379 |
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| 380 | /* this destroys the channel and we cannot use it anymore after this */
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| 381 | Curl_resolver_cleanup(data->state.resolver);
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| 382 |
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| 383 | Curl_http2_cleanup_dependencies(data);
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| 384 | Curl_convert_close(data);
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| 385 |
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| 386 | Curl_mime_cleanpart(&data->set.mimepost);
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| 387 |
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| 388 | /* No longer a dirty share, if it exists */
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| 389 | if(data->share) {
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| 390 | Curl_share_lock(data, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE);
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| 391 | data->share->dirty--;
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| 392 | Curl_share_unlock(data, CURL_LOCK_DATA_SHARE);
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| 393 | }
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| 394 |
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| 395 | /* destruct wildcard structures if it is needed */
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| 396 | Curl_wildcard_dtor(&data->wildcard);
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| 397 | Curl_freeset(data);
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| 398 | free(data);
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| 399 | return CURLE_OK;
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| 400 | }
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| 401 |
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| 402 | /*
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| 403 | * Initialize the UserDefined fields within a Curl_easy.
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| 404 | * This may be safely called on a new or existing Curl_easy.
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| 405 | */
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| 406 | CURLcode Curl_init_userdefined(struct UserDefined *set)
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| 407 | {
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| 408 | CURLcode result = CURLE_OK;
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| 409 |
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| 410 | set->out = stdout; /* default output to stdout */
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| 411 | set->in_set = stdin; /* default input from stdin */
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| 412 | set->err = stderr; /* default stderr to stderr */
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| 413 |
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| 414 | /* use fwrite as default function to store output */
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| 415 | set->fwrite_func = (curl_write_callback)fwrite;
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| 416 |
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| 417 | /* use fread as default function to read input */
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| 418 | set->fread_func_set = (curl_read_callback)fread;
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| 419 | set->is_fread_set = 0;
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| 420 | set->is_fwrite_set = 0;
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| 421 |
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| 422 | set->seek_func = ZERO_NULL;
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| 423 | set->seek_client = ZERO_NULL;
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| 424 |
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| 425 | /* conversion callbacks for non-ASCII hosts */
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| 426 | set->convfromnetwork = ZERO_NULL;
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| 427 | set->convtonetwork = ZERO_NULL;
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| 428 | set->convfromutf8 = ZERO_NULL;
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| 429 |
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| 430 | set->filesize = -1; /* we don't know the size */
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| 431 | set->postfieldsize = -1; /* unknown size */
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| 432 | set->maxredirs = -1; /* allow any amount by default */
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| 433 |
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| 434 | set->httpreq = HTTPREQ_GET; /* Default HTTP request */
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| 435 | set->rtspreq = RTSPREQ_OPTIONS; /* Default RTSP request */
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| 436 | set->ftp_use_epsv = TRUE; /* FTP defaults to EPSV operations */
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| 437 | set->ftp_use_eprt = TRUE; /* FTP defaults to EPRT operations */
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| 438 | set->ftp_use_pret = FALSE; /* mainly useful for drftpd servers */
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---|
| 439 | set->ftp_filemethod = FTPFILE_MULTICWD;
|
---|
| 440 |
|
---|
| 441 | set->dns_cache_timeout = 60; /* Timeout every 60 seconds by default */
|
---|
| 442 |
|
---|
| 443 | /* Set the default size of the SSL session ID cache */
|
---|
| 444 | set->general_ssl.max_ssl_sessions = 5;
|
---|
| 445 |
|
---|
| 446 | set->proxyport = 0;
|
---|
| 447 | set->proxytype = CURLPROXY_HTTP; /* defaults to HTTP proxy */
|
---|
| 448 | set->httpauth = CURLAUTH_BASIC; /* defaults to basic */
|
---|
| 449 | set->proxyauth = CURLAUTH_BASIC; /* defaults to basic */
|
---|
| 450 |
|
---|
| 451 | /* SOCKS5 proxy auth defaults to username/password + GSS-API */
|
---|
| 452 | set->socks5auth = CURLAUTH_BASIC | CURLAUTH_GSSAPI;
|
---|
| 453 |
|
---|
| 454 | /* make libcurl quiet by default: */
|
---|
| 455 | set->hide_progress = TRUE; /* CURLOPT_NOPROGRESS changes these */
|
---|
| 456 |
|
---|
| 457 | /*
|
---|
| 458 | * libcurl 7.10 introduced SSL verification *by default*! This needs to be
|
---|
| 459 | * switched off unless wanted.
|
---|
| 460 | */
|
---|
| 461 | set->ssl.primary.verifypeer = TRUE;
|
---|
| 462 | set->ssl.primary.verifyhost = TRUE;
|
---|
| 463 | #ifdef USE_TLS_SRP
|
---|
| 464 | set->ssl.authtype = CURL_TLSAUTH_NONE;
|
---|
| 465 | #endif
|
---|
| 466 | set->ssh_auth_types = CURLSSH_AUTH_DEFAULT; /* defaults to any auth
|
---|
| 467 | type */
|
---|
| 468 | set->ssl.primary.sessionid = TRUE; /* session ID caching enabled by
|
---|
| 469 | default */
|
---|
| 470 | set->proxy_ssl = set->ssl;
|
---|
| 471 |
|
---|
| 472 | set->new_file_perms = 0644; /* Default permissions */
|
---|
| 473 | set->new_directory_perms = 0755; /* Default permissions */
|
---|
| 474 |
|
---|
| 475 | /* for the *protocols fields we don't use the CURLPROTO_ALL convenience
|
---|
| 476 | define since we internally only use the lower 16 bits for the passed
|
---|
| 477 | in bitmask to not conflict with the private bits */
|
---|
| 478 | set->allowed_protocols = CURLPROTO_ALL;
|
---|
| 479 | set->redir_protocols = CURLPROTO_ALL & /* All except FILE, SCP and SMB */
|
---|
| 480 | ~(CURLPROTO_FILE | CURLPROTO_SCP | CURLPROTO_SMB |
|
---|
| 481 | CURLPROTO_SMBS);
|
---|
| 482 |
|
---|
| 483 | #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
|
---|
| 484 | /*
|
---|
| 485 | * disallow unprotected protection negotiation NEC reference implementation
|
---|
| 486 | * seem not to follow rfc1961 section 4.3/4.4
|
---|
| 487 | */
|
---|
| 488 | set->socks5_gssapi_nec = FALSE;
|
---|
| 489 | #endif
|
---|
| 490 |
|
---|
| 491 | /* This is our preferred CA cert bundle/path since install time */
|
---|
| 492 | #if defined(CURL_CA_BUNDLE)
|
---|
| 493 | result = Curl_setstropt(&set->str[STRING_SSL_CAFILE_ORIG], CURL_CA_BUNDLE);
|
---|
| 494 | if(result)
|
---|
| 495 | return result;
|
---|
| 496 |
|
---|
| 497 | result = Curl_setstropt(&set->str[STRING_SSL_CAFILE_PROXY], CURL_CA_BUNDLE);
|
---|
| 498 | if(result)
|
---|
| 499 | return result;
|
---|
| 500 | #endif
|
---|
| 501 | #if defined(CURL_CA_PATH)
|
---|
| 502 | result = Curl_setstropt(&set->str[STRING_SSL_CAPATH_ORIG], CURL_CA_PATH);
|
---|
| 503 | if(result)
|
---|
| 504 | return result;
|
---|
| 505 |
|
---|
| 506 | result = Curl_setstropt(&set->str[STRING_SSL_CAPATH_PROXY], CURL_CA_PATH);
|
---|
| 507 | if(result)
|
---|
| 508 | return result;
|
---|
| 509 | #endif
|
---|
| 510 |
|
---|
| 511 | set->wildcard_enabled = FALSE;
|
---|
| 512 | set->chunk_bgn = ZERO_NULL;
|
---|
| 513 | set->chunk_end = ZERO_NULL;
|
---|
| 514 |
|
---|
| 515 | /* tcp keepalives are disabled by default, but provide reasonable values for
|
---|
| 516 | * the interval and idle times.
|
---|
| 517 | */
|
---|
| 518 | set->tcp_keepalive = FALSE;
|
---|
| 519 | set->tcp_keepintvl = 60;
|
---|
| 520 | set->tcp_keepidle = 60;
|
---|
| 521 | set->tcp_fastopen = FALSE;
|
---|
| 522 | set->tcp_nodelay = TRUE;
|
---|
| 523 |
|
---|
| 524 | set->ssl_enable_npn = TRUE;
|
---|
| 525 | set->ssl_enable_alpn = TRUE;
|
---|
| 526 |
|
---|
| 527 | set->expect_100_timeout = 1000L; /* Wait for a second by default. */
|
---|
| 528 | set->sep_headers = TRUE; /* separated header lists by default */
|
---|
| 529 | set->buffer_size = READBUFFER_SIZE;
|
---|
| 530 |
|
---|
| 531 | Curl_http2_init_userset(set);
|
---|
| 532 | return result;
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 | /**
|
---|
| 536 | * Curl_open()
|
---|
| 537 | *
|
---|
| 538 | * @param curl is a pointer to a sessionhandle pointer that gets set by this
|
---|
| 539 | * function.
|
---|
| 540 | * @return CURLcode
|
---|
| 541 | */
|
---|
| 542 |
|
---|
| 543 | CURLcode Curl_open(struct Curl_easy **curl)
|
---|
| 544 | {
|
---|
| 545 | CURLcode result;
|
---|
| 546 | struct Curl_easy *data;
|
---|
| 547 |
|
---|
| 548 | /* Very simple start-up: alloc the struct, init it with zeroes and return */
|
---|
| 549 | data = calloc(1, sizeof(struct Curl_easy));
|
---|
| 550 | if(!data) {
|
---|
| 551 | /* this is a very serious error */
|
---|
| 552 | DEBUGF(fprintf(stderr, "Error: calloc of Curl_easy failed\n"));
|
---|
| 553 | return CURLE_OUT_OF_MEMORY;
|
---|
| 554 | }
|
---|
| 555 |
|
---|
| 556 | data->magic = CURLEASY_MAGIC_NUMBER;
|
---|
| 557 |
|
---|
| 558 | result = Curl_resolver_init(&data->state.resolver);
|
---|
| 559 | if(result) {
|
---|
| 560 | DEBUGF(fprintf(stderr, "Error: resolver_init failed\n"));
|
---|
| 561 | free(data);
|
---|
| 562 | return result;
|
---|
| 563 | }
|
---|
| 564 |
|
---|
| 565 | /* We do some initial setup here, all those fields that can't be just 0 */
|
---|
| 566 |
|
---|
| 567 | data->state.buffer = malloc(READBUFFER_SIZE + 1);
|
---|
| 568 | if(!data->state.buffer) {
|
---|
| 569 | DEBUGF(fprintf(stderr, "Error: malloc of buffer failed\n"));
|
---|
| 570 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 571 | }
|
---|
| 572 | else {
|
---|
| 573 | Curl_mime_initpart(&data->set.mimepost, data);
|
---|
| 574 |
|
---|
| 575 | data->state.headerbuff = malloc(HEADERSIZE);
|
---|
| 576 | if(!data->state.headerbuff) {
|
---|
| 577 | DEBUGF(fprintf(stderr, "Error: malloc of headerbuff failed\n"));
|
---|
| 578 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 579 | }
|
---|
| 580 | else {
|
---|
| 581 | result = Curl_init_userdefined(&data->set);
|
---|
| 582 |
|
---|
| 583 | data->state.headersize = HEADERSIZE;
|
---|
| 584 | Curl_convert_init(data);
|
---|
| 585 | Curl_initinfo(data);
|
---|
| 586 |
|
---|
| 587 | /* most recent connection is not yet defined */
|
---|
| 588 | data->state.lastconnect = NULL;
|
---|
| 589 |
|
---|
| 590 | data->progress.flags |= PGRS_HIDE;
|
---|
| 591 | data->state.current_speed = -1; /* init to negative == impossible */
|
---|
| 592 | data->set.fnmatch = ZERO_NULL;
|
---|
| 593 | data->set.maxconnects = DEFAULT_CONNCACHE_SIZE; /* for easy handles */
|
---|
| 594 |
|
---|
| 595 | Curl_http2_init_state(&data->state);
|
---|
| 596 | }
|
---|
| 597 | }
|
---|
| 598 |
|
---|
| 599 | if(result) {
|
---|
| 600 | Curl_resolver_cleanup(data->state.resolver);
|
---|
| 601 | free(data->state.buffer);
|
---|
| 602 | free(data->state.headerbuff);
|
---|
| 603 | Curl_freeset(data);
|
---|
| 604 | free(data);
|
---|
| 605 | data = NULL;
|
---|
| 606 | }
|
---|
| 607 | else
|
---|
| 608 | *curl = data;
|
---|
| 609 |
|
---|
| 610 | return result;
|
---|
| 611 | }
|
---|
| 612 |
|
---|
| 613 | #ifdef USE_RECV_BEFORE_SEND_WORKAROUND
|
---|
| 614 | static void conn_reset_postponed_data(struct connectdata *conn, int num)
|
---|
| 615 | {
|
---|
| 616 | struct postponed_data * const psnd = &(conn->postponed[num]);
|
---|
| 617 | if(psnd->buffer) {
|
---|
| 618 | DEBUGASSERT(psnd->allocated_size > 0);
|
---|
| 619 | DEBUGASSERT(psnd->recv_size <= psnd->allocated_size);
|
---|
| 620 | DEBUGASSERT(psnd->recv_size ?
|
---|
| 621 | (psnd->recv_processed < psnd->recv_size) :
|
---|
| 622 | (psnd->recv_processed == 0));
|
---|
| 623 | DEBUGASSERT(psnd->bindsock != CURL_SOCKET_BAD);
|
---|
| 624 | free(psnd->buffer);
|
---|
| 625 | psnd->buffer = NULL;
|
---|
| 626 | psnd->allocated_size = 0;
|
---|
| 627 | psnd->recv_size = 0;
|
---|
| 628 | psnd->recv_processed = 0;
|
---|
| 629 | #ifdef DEBUGBUILD
|
---|
| 630 | psnd->bindsock = CURL_SOCKET_BAD; /* used only for DEBUGASSERT */
|
---|
| 631 | #endif /* DEBUGBUILD */
|
---|
| 632 | }
|
---|
| 633 | else {
|
---|
| 634 | DEBUGASSERT(psnd->allocated_size == 0);
|
---|
| 635 | DEBUGASSERT(psnd->recv_size == 0);
|
---|
| 636 | DEBUGASSERT(psnd->recv_processed == 0);
|
---|
| 637 | DEBUGASSERT(psnd->bindsock == CURL_SOCKET_BAD);
|
---|
| 638 | }
|
---|
| 639 | }
|
---|
| 640 |
|
---|
| 641 | static void conn_reset_all_postponed_data(struct connectdata *conn)
|
---|
| 642 | {
|
---|
| 643 | conn_reset_postponed_data(conn, 0);
|
---|
| 644 | conn_reset_postponed_data(conn, 1);
|
---|
| 645 | }
|
---|
| 646 | #else /* ! USE_RECV_BEFORE_SEND_WORKAROUND */
|
---|
| 647 | /* Use "do-nothing" macro instead of function when workaround not used */
|
---|
| 648 | #define conn_reset_all_postponed_data(c) do {} WHILE_FALSE
|
---|
| 649 | #endif /* ! USE_RECV_BEFORE_SEND_WORKAROUND */
|
---|
| 650 |
|
---|
| 651 | static void conn_free(struct connectdata *conn)
|
---|
| 652 | {
|
---|
| 653 | if(!conn)
|
---|
| 654 | return;
|
---|
| 655 |
|
---|
| 656 | /* possible left-overs from the async name resolvers */
|
---|
| 657 | Curl_resolver_cancel(conn);
|
---|
| 658 |
|
---|
| 659 | /* close the SSL stuff before we close any sockets since they will/may
|
---|
| 660 | write to the sockets */
|
---|
| 661 | Curl_ssl_close(conn, FIRSTSOCKET);
|
---|
| 662 | Curl_ssl_close(conn, SECONDARYSOCKET);
|
---|
| 663 |
|
---|
| 664 | /* close possibly still open sockets */
|
---|
| 665 | if(CURL_SOCKET_BAD != conn->sock[SECONDARYSOCKET])
|
---|
| 666 | Curl_closesocket(conn, conn->sock[SECONDARYSOCKET]);
|
---|
| 667 | if(CURL_SOCKET_BAD != conn->sock[FIRSTSOCKET])
|
---|
| 668 | Curl_closesocket(conn, conn->sock[FIRSTSOCKET]);
|
---|
| 669 | if(CURL_SOCKET_BAD != conn->tempsock[0])
|
---|
| 670 | Curl_closesocket(conn, conn->tempsock[0]);
|
---|
| 671 | if(CURL_SOCKET_BAD != conn->tempsock[1])
|
---|
| 672 | Curl_closesocket(conn, conn->tempsock[1]);
|
---|
| 673 |
|
---|
| 674 | #if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
|
---|
| 675 | defined(NTLM_WB_ENABLED)
|
---|
| 676 | Curl_ntlm_wb_cleanup(conn);
|
---|
| 677 | #endif
|
---|
| 678 |
|
---|
| 679 | Curl_safefree(conn->user);
|
---|
| 680 | Curl_safefree(conn->passwd);
|
---|
| 681 | Curl_safefree(conn->oauth_bearer);
|
---|
| 682 | Curl_safefree(conn->options);
|
---|
| 683 | Curl_safefree(conn->http_proxy.user);
|
---|
| 684 | Curl_safefree(conn->socks_proxy.user);
|
---|
| 685 | Curl_safefree(conn->http_proxy.passwd);
|
---|
| 686 | Curl_safefree(conn->socks_proxy.passwd);
|
---|
| 687 | Curl_safefree(conn->allocptr.proxyuserpwd);
|
---|
| 688 | Curl_safefree(conn->allocptr.uagent);
|
---|
| 689 | Curl_safefree(conn->allocptr.userpwd);
|
---|
| 690 | Curl_safefree(conn->allocptr.accept_encoding);
|
---|
| 691 | Curl_safefree(conn->allocptr.te);
|
---|
| 692 | Curl_safefree(conn->allocptr.rangeline);
|
---|
| 693 | Curl_safefree(conn->allocptr.ref);
|
---|
| 694 | Curl_safefree(conn->allocptr.host);
|
---|
| 695 | Curl_safefree(conn->allocptr.cookiehost);
|
---|
| 696 | Curl_safefree(conn->allocptr.rtsp_transport);
|
---|
| 697 | Curl_safefree(conn->trailer);
|
---|
| 698 | Curl_safefree(conn->host.rawalloc); /* host name buffer */
|
---|
| 699 | Curl_safefree(conn->conn_to_host.rawalloc); /* host name buffer */
|
---|
| 700 | Curl_safefree(conn->secondaryhostname);
|
---|
| 701 | Curl_safefree(conn->http_proxy.host.rawalloc); /* http proxy name buffer */
|
---|
| 702 | Curl_safefree(conn->socks_proxy.host.rawalloc); /* socks proxy name buffer */
|
---|
| 703 | Curl_safefree(conn->master_buffer);
|
---|
| 704 | Curl_safefree(conn->connect_state);
|
---|
| 705 |
|
---|
| 706 | conn_reset_all_postponed_data(conn);
|
---|
| 707 |
|
---|
| 708 | Curl_llist_destroy(&conn->send_pipe, NULL);
|
---|
| 709 | Curl_llist_destroy(&conn->recv_pipe, NULL);
|
---|
| 710 |
|
---|
| 711 | Curl_safefree(conn->localdev);
|
---|
| 712 | Curl_free_primary_ssl_config(&conn->ssl_config);
|
---|
| 713 | Curl_free_primary_ssl_config(&conn->proxy_ssl_config);
|
---|
| 714 |
|
---|
| 715 | #ifdef USE_UNIX_SOCKETS
|
---|
| 716 | Curl_safefree(conn->unix_domain_socket);
|
---|
| 717 | #endif
|
---|
| 718 |
|
---|
| 719 | free(conn); /* free all the connection oriented data */
|
---|
| 720 | }
|
---|
| 721 |
|
---|
| 722 | /*
|
---|
| 723 | * Disconnects the given connection. Note the connection may not be the
|
---|
| 724 | * primary connection, like when freeing room in the connection cache or
|
---|
| 725 | * killing of a dead old connection.
|
---|
| 726 | *
|
---|
| 727 | * This function MUST NOT reset state in the Curl_easy struct if that
|
---|
| 728 | * isn't strictly bound to the life-time of *this* particular connection.
|
---|
| 729 | *
|
---|
| 730 | */
|
---|
| 731 |
|
---|
| 732 | CURLcode Curl_disconnect(struct connectdata *conn, bool dead_connection)
|
---|
| 733 | {
|
---|
| 734 | struct Curl_easy *data;
|
---|
| 735 | if(!conn)
|
---|
| 736 | return CURLE_OK; /* this is closed and fine already */
|
---|
| 737 | data = conn->data;
|
---|
| 738 |
|
---|
| 739 | if(!data) {
|
---|
| 740 | DEBUGF(fprintf(stderr, "DISCONNECT without easy handle, ignoring\n"));
|
---|
| 741 | return CURLE_OK;
|
---|
| 742 | }
|
---|
| 743 |
|
---|
| 744 | /*
|
---|
| 745 | * If this connection isn't marked to force-close, leave it open if there
|
---|
| 746 | * are other users of it
|
---|
| 747 | */
|
---|
| 748 | if(!conn->bits.close &&
|
---|
| 749 | (conn->send_pipe.size + conn->recv_pipe.size)) {
|
---|
| 750 | DEBUGF(infof(data, "Curl_disconnect, usecounter: %d\n",
|
---|
| 751 | conn->send_pipe.size + conn->recv_pipe.size));
|
---|
| 752 | return CURLE_OK;
|
---|
| 753 | }
|
---|
| 754 |
|
---|
| 755 | if(conn->dns_entry != NULL) {
|
---|
| 756 | Curl_resolv_unlock(data, conn->dns_entry);
|
---|
| 757 | conn->dns_entry = NULL;
|
---|
| 758 | }
|
---|
| 759 |
|
---|
| 760 | Curl_hostcache_prune(data); /* kill old DNS cache entries */
|
---|
| 761 |
|
---|
| 762 | #if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM)
|
---|
| 763 | /* Cleanup NTLM connection-related data */
|
---|
| 764 | Curl_http_ntlm_cleanup(conn);
|
---|
| 765 | #endif
|
---|
| 766 |
|
---|
| 767 | if(conn->handler->disconnect)
|
---|
| 768 | /* This is set if protocol-specific cleanups should be made */
|
---|
| 769 | conn->handler->disconnect(conn, dead_connection);
|
---|
| 770 |
|
---|
| 771 | /* unlink ourselves! */
|
---|
| 772 | infof(data, "Closing connection %ld\n", conn->connection_id);
|
---|
| 773 | Curl_conncache_remove_conn(data->state.conn_cache, conn);
|
---|
| 774 |
|
---|
| 775 | free_fixed_hostname(&conn->host);
|
---|
| 776 | free_fixed_hostname(&conn->conn_to_host);
|
---|
| 777 | free_fixed_hostname(&conn->http_proxy.host);
|
---|
| 778 | free_fixed_hostname(&conn->socks_proxy.host);
|
---|
| 779 |
|
---|
| 780 | Curl_ssl_close(conn, FIRSTSOCKET);
|
---|
| 781 |
|
---|
| 782 | /* Indicate to all handles on the pipe that we're dead */
|
---|
| 783 | if(Curl_pipeline_wanted(data->multi, CURLPIPE_ANY)) {
|
---|
| 784 | signalPipeClose(&conn->send_pipe, TRUE);
|
---|
| 785 | signalPipeClose(&conn->recv_pipe, TRUE);
|
---|
| 786 | }
|
---|
| 787 |
|
---|
| 788 | conn_free(conn);
|
---|
| 789 |
|
---|
| 790 | return CURLE_OK;
|
---|
| 791 | }
|
---|
| 792 |
|
---|
| 793 | /*
|
---|
| 794 | * This function should return TRUE if the socket is to be assumed to
|
---|
| 795 | * be dead. Most commonly this happens when the server has closed the
|
---|
| 796 | * connection due to inactivity.
|
---|
| 797 | */
|
---|
| 798 | static bool SocketIsDead(curl_socket_t sock)
|
---|
| 799 | {
|
---|
| 800 | int sval;
|
---|
| 801 | bool ret_val = TRUE;
|
---|
| 802 |
|
---|
| 803 | sval = SOCKET_READABLE(sock, 0);
|
---|
| 804 | if(sval == 0)
|
---|
| 805 | /* timeout */
|
---|
| 806 | ret_val = FALSE;
|
---|
| 807 |
|
---|
| 808 | return ret_val;
|
---|
| 809 | }
|
---|
| 810 |
|
---|
| 811 | /*
|
---|
| 812 | * IsPipeliningPossible()
|
---|
| 813 | *
|
---|
| 814 | * Return a bitmask with the available pipelining and multiplexing options for
|
---|
| 815 | * the given requested connection.
|
---|
| 816 | */
|
---|
| 817 | static int IsPipeliningPossible(const struct Curl_easy *handle,
|
---|
| 818 | const struct connectdata *conn)
|
---|
| 819 | {
|
---|
| 820 | int avail = 0;
|
---|
| 821 |
|
---|
| 822 | /* If a HTTP protocol and pipelining is enabled */
|
---|
| 823 | if((conn->handler->protocol & PROTO_FAMILY_HTTP) &&
|
---|
| 824 | (!conn->bits.protoconnstart || !conn->bits.close)) {
|
---|
| 825 |
|
---|
| 826 | if(Curl_pipeline_wanted(handle->multi, CURLPIPE_HTTP1) &&
|
---|
| 827 | (handle->set.httpversion != CURL_HTTP_VERSION_1_0) &&
|
---|
| 828 | (handle->set.httpreq == HTTPREQ_GET ||
|
---|
| 829 | handle->set.httpreq == HTTPREQ_HEAD))
|
---|
| 830 | /* didn't ask for HTTP/1.0 and a GET or HEAD */
|
---|
| 831 | avail |= CURLPIPE_HTTP1;
|
---|
| 832 |
|
---|
| 833 | if(Curl_pipeline_wanted(handle->multi, CURLPIPE_MULTIPLEX) &&
|
---|
| 834 | (handle->set.httpversion >= CURL_HTTP_VERSION_2))
|
---|
| 835 | /* allows HTTP/2 */
|
---|
| 836 | avail |= CURLPIPE_MULTIPLEX;
|
---|
| 837 | }
|
---|
| 838 | return avail;
|
---|
| 839 | }
|
---|
| 840 |
|
---|
| 841 | int Curl_removeHandleFromPipeline(struct Curl_easy *handle,
|
---|
| 842 | struct curl_llist *pipeline)
|
---|
| 843 | {
|
---|
| 844 | if(pipeline) {
|
---|
| 845 | struct curl_llist_element *curr;
|
---|
| 846 |
|
---|
| 847 | curr = pipeline->head;
|
---|
| 848 | while(curr) {
|
---|
| 849 | if(curr->ptr == handle) {
|
---|
| 850 | Curl_llist_remove(pipeline, curr, NULL);
|
---|
| 851 | return 1; /* we removed a handle */
|
---|
| 852 | }
|
---|
| 853 | curr = curr->next;
|
---|
| 854 | }
|
---|
| 855 | }
|
---|
| 856 |
|
---|
| 857 | return 0;
|
---|
| 858 | }
|
---|
| 859 |
|
---|
| 860 | #if 0 /* this code is saved here as it is useful for debugging purposes */
|
---|
| 861 | static void Curl_printPipeline(struct curl_llist *pipeline)
|
---|
| 862 | {
|
---|
| 863 | struct curl_llist_element *curr;
|
---|
| 864 |
|
---|
| 865 | curr = pipeline->head;
|
---|
| 866 | while(curr) {
|
---|
| 867 | struct Curl_easy *data = (struct Curl_easy *) curr->ptr;
|
---|
| 868 | infof(data, "Handle in pipeline: %s\n", data->state.path);
|
---|
| 869 | curr = curr->next;
|
---|
| 870 | }
|
---|
| 871 | }
|
---|
| 872 | #endif
|
---|
| 873 |
|
---|
| 874 | static struct Curl_easy* gethandleathead(struct curl_llist *pipeline)
|
---|
| 875 | {
|
---|
| 876 | struct curl_llist_element *curr = pipeline->head;
|
---|
| 877 | if(curr) {
|
---|
| 878 | return (struct Curl_easy *) curr->ptr;
|
---|
| 879 | }
|
---|
| 880 |
|
---|
| 881 | return NULL;
|
---|
| 882 | }
|
---|
| 883 |
|
---|
| 884 | /* remove the specified connection from all (possible) pipelines and related
|
---|
| 885 | queues */
|
---|
| 886 | void Curl_getoff_all_pipelines(struct Curl_easy *data,
|
---|
| 887 | struct connectdata *conn)
|
---|
| 888 | {
|
---|
| 889 | bool recv_head = (conn->readchannel_inuse &&
|
---|
| 890 | Curl_recvpipe_head(data, conn));
|
---|
| 891 | bool send_head = (conn->writechannel_inuse &&
|
---|
| 892 | Curl_sendpipe_head(data, conn));
|
---|
| 893 |
|
---|
| 894 | if(Curl_removeHandleFromPipeline(data, &conn->recv_pipe) && recv_head)
|
---|
| 895 | Curl_pipeline_leave_read(conn);
|
---|
| 896 | if(Curl_removeHandleFromPipeline(data, &conn->send_pipe) && send_head)
|
---|
| 897 | Curl_pipeline_leave_write(conn);
|
---|
| 898 | }
|
---|
| 899 |
|
---|
| 900 | static void signalPipeClose(struct curl_llist *pipeline, bool pipe_broke)
|
---|
| 901 | {
|
---|
| 902 | struct curl_llist_element *curr;
|
---|
| 903 |
|
---|
| 904 | if(!pipeline)
|
---|
| 905 | return;
|
---|
| 906 |
|
---|
| 907 | curr = pipeline->head;
|
---|
| 908 | while(curr) {
|
---|
| 909 | struct curl_llist_element *next = curr->next;
|
---|
| 910 | struct Curl_easy *data = (struct Curl_easy *) curr->ptr;
|
---|
| 911 |
|
---|
| 912 | #ifdef DEBUGBUILD /* debug-only code */
|
---|
| 913 | if(data->magic != CURLEASY_MAGIC_NUMBER) {
|
---|
| 914 | /* MAJOR BADNESS */
|
---|
| 915 | infof(data, "signalPipeClose() found BAAD easy handle\n");
|
---|
| 916 | }
|
---|
| 917 | #endif
|
---|
| 918 |
|
---|
| 919 | if(pipe_broke)
|
---|
| 920 | data->state.pipe_broke = TRUE;
|
---|
| 921 | Curl_multi_handlePipeBreak(data);
|
---|
| 922 | Curl_llist_remove(pipeline, curr, NULL);
|
---|
| 923 | curr = next;
|
---|
| 924 | }
|
---|
| 925 | }
|
---|
| 926 |
|
---|
| 927 | static bool
|
---|
| 928 | proxy_info_matches(const struct proxy_info* data,
|
---|
| 929 | const struct proxy_info* needle)
|
---|
| 930 | {
|
---|
| 931 | if((data->proxytype == needle->proxytype) &&
|
---|
| 932 | (data->port == needle->port) &&
|
---|
| 933 | Curl_safe_strcasecompare(data->host.name, needle->host.name))
|
---|
| 934 | return TRUE;
|
---|
| 935 |
|
---|
| 936 | return FALSE;
|
---|
| 937 | }
|
---|
| 938 |
|
---|
| 939 |
|
---|
| 940 | /*
|
---|
| 941 | * This function finds the connection in the connection
|
---|
| 942 | * bundle that has been unused for the longest time.
|
---|
| 943 | *
|
---|
| 944 | * Returns the pointer to the oldest idle connection, or NULL if none was
|
---|
| 945 | * found.
|
---|
| 946 | */
|
---|
| 947 | static struct connectdata *
|
---|
| 948 | find_oldest_idle_connection_in_bundle(struct Curl_easy *data,
|
---|
| 949 | struct connectbundle *bundle)
|
---|
| 950 | {
|
---|
| 951 | struct curl_llist_element *curr;
|
---|
| 952 | timediff_t highscore = -1;
|
---|
| 953 | timediff_t score;
|
---|
| 954 | struct curltime now;
|
---|
| 955 | struct connectdata *conn_candidate = NULL;
|
---|
| 956 | struct connectdata *conn;
|
---|
| 957 |
|
---|
| 958 | (void)data;
|
---|
| 959 |
|
---|
| 960 | now = Curl_now();
|
---|
| 961 |
|
---|
| 962 | curr = bundle->conn_list.head;
|
---|
| 963 | while(curr) {
|
---|
| 964 | conn = curr->ptr;
|
---|
| 965 |
|
---|
| 966 | if(!conn->inuse) {
|
---|
| 967 | /* Set higher score for the age passed since the connection was used */
|
---|
| 968 | score = Curl_timediff(now, conn->now);
|
---|
| 969 |
|
---|
| 970 | if(score > highscore) {
|
---|
| 971 | highscore = score;
|
---|
| 972 | conn_candidate = conn;
|
---|
| 973 | }
|
---|
| 974 | }
|
---|
| 975 | curr = curr->next;
|
---|
| 976 | }
|
---|
| 977 |
|
---|
| 978 | return conn_candidate;
|
---|
| 979 | }
|
---|
| 980 |
|
---|
| 981 | /*
|
---|
| 982 | * This function checks if given connection is dead and disconnects if so.
|
---|
| 983 | * (That also removes it from the connection cache.)
|
---|
| 984 | *
|
---|
| 985 | * Returns TRUE if the connection actually was dead and disconnected.
|
---|
| 986 | */
|
---|
| 987 | static bool disconnect_if_dead(struct connectdata *conn,
|
---|
| 988 | struct Curl_easy *data)
|
---|
| 989 | {
|
---|
| 990 | size_t pipeLen = conn->send_pipe.size + conn->recv_pipe.size;
|
---|
| 991 | if(!pipeLen && !conn->inuse) {
|
---|
| 992 | /* The check for a dead socket makes sense only if there are no
|
---|
| 993 | handles in pipeline and the connection isn't already marked in
|
---|
| 994 | use */
|
---|
| 995 | bool dead;
|
---|
| 996 |
|
---|
| 997 | if(conn->handler->connection_check) {
|
---|
| 998 | /* The protocol has a special method for checking the state of the
|
---|
| 999 | connection. Use it to check if the connection is dead. */
|
---|
| 1000 | unsigned int state;
|
---|
| 1001 |
|
---|
| 1002 | state = conn->handler->connection_check(conn, CONNCHECK_ISDEAD);
|
---|
| 1003 | dead = (state & CONNRESULT_DEAD);
|
---|
| 1004 | }
|
---|
| 1005 | else {
|
---|
| 1006 | /* Use the general method for determining the death of a connection */
|
---|
| 1007 | dead = SocketIsDead(conn->sock[FIRSTSOCKET]);
|
---|
| 1008 | }
|
---|
| 1009 |
|
---|
| 1010 | if(dead) {
|
---|
| 1011 | conn->data = data;
|
---|
| 1012 | infof(data, "Connection %ld seems to be dead!\n", conn->connection_id);
|
---|
| 1013 |
|
---|
| 1014 | /* disconnect resources */
|
---|
| 1015 | Curl_disconnect(conn, /* dead_connection */TRUE);
|
---|
| 1016 | return TRUE;
|
---|
| 1017 | }
|
---|
| 1018 | }
|
---|
| 1019 | return FALSE;
|
---|
| 1020 | }
|
---|
| 1021 |
|
---|
| 1022 | /*
|
---|
| 1023 | * Wrapper to use disconnect_if_dead() function in Curl_conncache_foreach()
|
---|
| 1024 | *
|
---|
| 1025 | * Returns always 0.
|
---|
| 1026 | */
|
---|
| 1027 | static int call_disconnect_if_dead(struct connectdata *conn,
|
---|
| 1028 | void *param)
|
---|
| 1029 | {
|
---|
| 1030 | struct Curl_easy* data = (struct Curl_easy*)param;
|
---|
| 1031 | disconnect_if_dead(conn, data);
|
---|
| 1032 | return 0; /* continue iteration */
|
---|
| 1033 | }
|
---|
| 1034 |
|
---|
| 1035 | /*
|
---|
| 1036 | * This function scans the connection cache for half-open/dead connections,
|
---|
| 1037 | * closes and removes them.
|
---|
| 1038 | * The cleanup is done at most once per second.
|
---|
| 1039 | */
|
---|
| 1040 | static void prune_dead_connections(struct Curl_easy *data)
|
---|
| 1041 | {
|
---|
| 1042 | struct curltime now = Curl_now();
|
---|
| 1043 | time_t elapsed = Curl_timediff(now, data->state.conn_cache->last_cleanup);
|
---|
| 1044 |
|
---|
| 1045 | if(elapsed >= 1000L) {
|
---|
| 1046 | Curl_conncache_foreach(data, data->state.conn_cache, data,
|
---|
| 1047 | call_disconnect_if_dead);
|
---|
| 1048 | data->state.conn_cache->last_cleanup = now;
|
---|
| 1049 | }
|
---|
| 1050 | }
|
---|
| 1051 |
|
---|
| 1052 |
|
---|
| 1053 | static size_t max_pipeline_length(struct Curl_multi *multi)
|
---|
| 1054 | {
|
---|
| 1055 | return multi ? multi->max_pipeline_length : 0;
|
---|
| 1056 | }
|
---|
| 1057 |
|
---|
| 1058 |
|
---|
| 1059 | /*
|
---|
| 1060 | * Given one filled in connection struct (named needle), this function should
|
---|
| 1061 | * detect if there already is one that has all the significant details
|
---|
| 1062 | * exactly the same and thus should be used instead.
|
---|
| 1063 | *
|
---|
| 1064 | * If there is a match, this function returns TRUE - and has marked the
|
---|
| 1065 | * connection as 'in-use'. It must later be called with ConnectionDone() to
|
---|
| 1066 | * return back to 'idle' (unused) state.
|
---|
| 1067 | *
|
---|
| 1068 | * The force_reuse flag is set if the connection must be used, even if
|
---|
| 1069 | * the pipelining strategy wants to open a new connection instead of reusing.
|
---|
| 1070 | */
|
---|
| 1071 | static bool
|
---|
| 1072 | ConnectionExists(struct Curl_easy *data,
|
---|
| 1073 | struct connectdata *needle,
|
---|
| 1074 | struct connectdata **usethis,
|
---|
| 1075 | bool *force_reuse,
|
---|
| 1076 | bool *waitpipe)
|
---|
| 1077 | {
|
---|
| 1078 | struct connectdata *check;
|
---|
| 1079 | struct connectdata *chosen = 0;
|
---|
| 1080 | bool foundPendingCandidate = FALSE;
|
---|
| 1081 | int canpipe = IsPipeliningPossible(data, needle);
|
---|
| 1082 | struct connectbundle *bundle;
|
---|
| 1083 |
|
---|
| 1084 | #ifdef USE_NTLM
|
---|
| 1085 | bool wantNTLMhttp = ((data->state.authhost.want &
|
---|
| 1086 | (CURLAUTH_NTLM | CURLAUTH_NTLM_WB)) &&
|
---|
| 1087 | (needle->handler->protocol & PROTO_FAMILY_HTTP));
|
---|
| 1088 | bool wantProxyNTLMhttp = (needle->bits.proxy_user_passwd &&
|
---|
| 1089 | ((data->state.authproxy.want &
|
---|
| 1090 | (CURLAUTH_NTLM | CURLAUTH_NTLM_WB)) &&
|
---|
| 1091 | (needle->handler->protocol & PROTO_FAMILY_HTTP)));
|
---|
| 1092 | #endif
|
---|
| 1093 |
|
---|
| 1094 | *force_reuse = FALSE;
|
---|
| 1095 | *waitpipe = FALSE;
|
---|
| 1096 |
|
---|
| 1097 | /* We can't pipeline if the site is blacklisted */
|
---|
| 1098 | if((canpipe & CURLPIPE_HTTP1) &&
|
---|
| 1099 | Curl_pipeline_site_blacklisted(data, needle))
|
---|
| 1100 | canpipe &= ~ CURLPIPE_HTTP1;
|
---|
| 1101 |
|
---|
| 1102 | /* Look up the bundle with all the connections to this
|
---|
| 1103 | particular host */
|
---|
| 1104 | bundle = Curl_conncache_find_bundle(needle, data->state.conn_cache);
|
---|
| 1105 | if(bundle) {
|
---|
| 1106 | /* Max pipe length is zero (unlimited) for multiplexed connections */
|
---|
| 1107 | size_t max_pipe_len = (bundle->multiuse != BUNDLE_MULTIPLEX)?
|
---|
| 1108 | max_pipeline_length(data->multi):0;
|
---|
| 1109 | size_t best_pipe_len = max_pipe_len;
|
---|
| 1110 | struct curl_llist_element *curr;
|
---|
| 1111 |
|
---|
| 1112 | infof(data, "Found bundle for host %s: %p [%s]\n",
|
---|
| 1113 | (needle->bits.conn_to_host ? needle->conn_to_host.name :
|
---|
| 1114 | needle->host.name), (void *)bundle,
|
---|
| 1115 | (bundle->multiuse == BUNDLE_PIPELINING ?
|
---|
| 1116 | "can pipeline" :
|
---|
| 1117 | (bundle->multiuse == BUNDLE_MULTIPLEX ?
|
---|
| 1118 | "can multiplex" : "serially")));
|
---|
| 1119 |
|
---|
| 1120 | /* We can't pipeline if we don't know anything about the server */
|
---|
| 1121 | if(canpipe) {
|
---|
| 1122 | if(bundle->multiuse <= BUNDLE_UNKNOWN) {
|
---|
| 1123 | if((bundle->multiuse == BUNDLE_UNKNOWN) && data->set.pipewait) {
|
---|
| 1124 | infof(data, "Server doesn't support multi-use yet, wait\n");
|
---|
| 1125 | *waitpipe = TRUE;
|
---|
| 1126 | return FALSE; /* no re-use */
|
---|
| 1127 | }
|
---|
| 1128 |
|
---|
| 1129 | infof(data, "Server doesn't support multi-use (yet)\n");
|
---|
| 1130 | canpipe = 0;
|
---|
| 1131 | }
|
---|
| 1132 | if((bundle->multiuse == BUNDLE_PIPELINING) &&
|
---|
| 1133 | !Curl_pipeline_wanted(data->multi, CURLPIPE_HTTP1)) {
|
---|
| 1134 | /* not asked for, switch off */
|
---|
| 1135 | infof(data, "Could pipeline, but not asked to!\n");
|
---|
| 1136 | canpipe = 0;
|
---|
| 1137 | }
|
---|
| 1138 | else if((bundle->multiuse == BUNDLE_MULTIPLEX) &&
|
---|
| 1139 | !Curl_pipeline_wanted(data->multi, CURLPIPE_MULTIPLEX)) {
|
---|
| 1140 | infof(data, "Could multiplex, but not asked to!\n");
|
---|
| 1141 | canpipe = 0;
|
---|
| 1142 | }
|
---|
| 1143 | }
|
---|
| 1144 |
|
---|
| 1145 | curr = bundle->conn_list.head;
|
---|
| 1146 | while(curr) {
|
---|
| 1147 | bool match = FALSE;
|
---|
| 1148 | size_t pipeLen;
|
---|
| 1149 |
|
---|
| 1150 | /*
|
---|
| 1151 | * Note that if we use a HTTP proxy in normal mode (no tunneling), we
|
---|
| 1152 | * check connections to that proxy and not to the actual remote server.
|
---|
| 1153 | */
|
---|
| 1154 | check = curr->ptr;
|
---|
| 1155 | curr = curr->next;
|
---|
| 1156 |
|
---|
| 1157 | if(disconnect_if_dead(check, data))
|
---|
| 1158 | continue;
|
---|
| 1159 |
|
---|
| 1160 | pipeLen = check->send_pipe.size + check->recv_pipe.size;
|
---|
| 1161 |
|
---|
| 1162 | if(canpipe) {
|
---|
| 1163 | if(check->bits.protoconnstart && check->bits.close)
|
---|
| 1164 | continue;
|
---|
| 1165 |
|
---|
| 1166 | if(!check->bits.multiplex) {
|
---|
| 1167 | /* If not multiplexing, make sure the connection is fine for HTTP/1
|
---|
| 1168 | pipelining */
|
---|
| 1169 | struct Curl_easy* sh = gethandleathead(&check->send_pipe);
|
---|
| 1170 | struct Curl_easy* rh = gethandleathead(&check->recv_pipe);
|
---|
| 1171 | if(sh) {
|
---|
| 1172 | if(!(IsPipeliningPossible(sh, check) & CURLPIPE_HTTP1))
|
---|
| 1173 | continue;
|
---|
| 1174 | }
|
---|
| 1175 | else if(rh) {
|
---|
| 1176 | if(!(IsPipeliningPossible(rh, check) & CURLPIPE_HTTP1))
|
---|
| 1177 | continue;
|
---|
| 1178 | }
|
---|
| 1179 | }
|
---|
| 1180 | }
|
---|
| 1181 | else {
|
---|
| 1182 | if(pipeLen > 0) {
|
---|
| 1183 | /* can only happen within multi handles, and means that another easy
|
---|
| 1184 | handle is using this connection */
|
---|
| 1185 | continue;
|
---|
| 1186 | }
|
---|
| 1187 |
|
---|
| 1188 | if(Curl_resolver_asynch()) {
|
---|
| 1189 | /* ip_addr_str[0] is NUL only if the resolving of the name hasn't
|
---|
| 1190 | completed yet and until then we don't re-use this connection */
|
---|
| 1191 | if(!check->ip_addr_str[0]) {
|
---|
| 1192 | infof(data,
|
---|
| 1193 | "Connection #%ld is still name resolving, can't reuse\n",
|
---|
| 1194 | check->connection_id);
|
---|
| 1195 | continue;
|
---|
| 1196 | }
|
---|
| 1197 | }
|
---|
| 1198 |
|
---|
| 1199 | if((check->sock[FIRSTSOCKET] == CURL_SOCKET_BAD) ||
|
---|
| 1200 | check->bits.close) {
|
---|
| 1201 | if(!check->bits.close)
|
---|
| 1202 | foundPendingCandidate = TRUE;
|
---|
| 1203 | /* Don't pick a connection that hasn't connected yet or that is going
|
---|
| 1204 | to get closed. */
|
---|
| 1205 | infof(data, "Connection #%ld isn't open enough, can't reuse\n",
|
---|
| 1206 | check->connection_id);
|
---|
| 1207 | #ifdef DEBUGBUILD
|
---|
| 1208 | if(check->recv_pipe.size > 0) {
|
---|
| 1209 | infof(data,
|
---|
| 1210 | "BAD! Unconnected #%ld has a non-empty recv pipeline!\n",
|
---|
| 1211 | check->connection_id);
|
---|
| 1212 | }
|
---|
| 1213 | #endif
|
---|
| 1214 | continue;
|
---|
| 1215 | }
|
---|
| 1216 | }
|
---|
| 1217 |
|
---|
| 1218 | #ifdef USE_UNIX_SOCKETS
|
---|
| 1219 | if(needle->unix_domain_socket) {
|
---|
| 1220 | if(!check->unix_domain_socket)
|
---|
| 1221 | continue;
|
---|
| 1222 | if(strcmp(needle->unix_domain_socket, check->unix_domain_socket))
|
---|
| 1223 | continue;
|
---|
| 1224 | if(needle->abstract_unix_socket != check->abstract_unix_socket)
|
---|
| 1225 | continue;
|
---|
| 1226 | }
|
---|
| 1227 | else if(check->unix_domain_socket)
|
---|
| 1228 | continue;
|
---|
| 1229 | #endif
|
---|
| 1230 |
|
---|
| 1231 | if((needle->handler->flags&PROTOPT_SSL) !=
|
---|
| 1232 | (check->handler->flags&PROTOPT_SSL))
|
---|
| 1233 | /* don't do mixed SSL and non-SSL connections */
|
---|
| 1234 | if(get_protocol_family(check->handler->protocol) !=
|
---|
| 1235 | needle->handler->protocol || !check->tls_upgraded)
|
---|
| 1236 | /* except protocols that have been upgraded via TLS */
|
---|
| 1237 | continue;
|
---|
| 1238 |
|
---|
| 1239 | if(needle->bits.httpproxy != check->bits.httpproxy ||
|
---|
| 1240 | needle->bits.socksproxy != check->bits.socksproxy)
|
---|
| 1241 | continue;
|
---|
| 1242 |
|
---|
| 1243 | if(needle->bits.socksproxy && !proxy_info_matches(&needle->socks_proxy,
|
---|
| 1244 | &check->socks_proxy))
|
---|
| 1245 | continue;
|
---|
| 1246 |
|
---|
| 1247 | if(needle->bits.conn_to_host != check->bits.conn_to_host)
|
---|
| 1248 | /* don't mix connections that use the "connect to host" feature and
|
---|
| 1249 | * connections that don't use this feature */
|
---|
| 1250 | continue;
|
---|
| 1251 |
|
---|
| 1252 | if(needle->bits.conn_to_port != check->bits.conn_to_port)
|
---|
| 1253 | /* don't mix connections that use the "connect to port" feature and
|
---|
| 1254 | * connections that don't use this feature */
|
---|
| 1255 | continue;
|
---|
| 1256 |
|
---|
| 1257 | if(needle->bits.httpproxy) {
|
---|
| 1258 | if(!proxy_info_matches(&needle->http_proxy, &check->http_proxy))
|
---|
| 1259 | continue;
|
---|
| 1260 |
|
---|
| 1261 | if(needle->bits.tunnel_proxy != check->bits.tunnel_proxy)
|
---|
| 1262 | continue;
|
---|
| 1263 |
|
---|
| 1264 | if(needle->http_proxy.proxytype == CURLPROXY_HTTPS) {
|
---|
| 1265 | /* use https proxy */
|
---|
| 1266 | if(needle->handler->flags&PROTOPT_SSL) {
|
---|
| 1267 | /* use double layer ssl */
|
---|
| 1268 | if(!Curl_ssl_config_matches(&needle->proxy_ssl_config,
|
---|
| 1269 | &check->proxy_ssl_config))
|
---|
| 1270 | continue;
|
---|
| 1271 | if(check->proxy_ssl[FIRSTSOCKET].state != ssl_connection_complete)
|
---|
| 1272 | continue;
|
---|
| 1273 | }
|
---|
| 1274 | else {
|
---|
| 1275 | if(!Curl_ssl_config_matches(&needle->ssl_config,
|
---|
| 1276 | &check->ssl_config))
|
---|
| 1277 | continue;
|
---|
| 1278 | if(check->ssl[FIRSTSOCKET].state != ssl_connection_complete)
|
---|
| 1279 | continue;
|
---|
| 1280 | }
|
---|
| 1281 | }
|
---|
| 1282 | }
|
---|
| 1283 |
|
---|
| 1284 | if(!canpipe && check->inuse)
|
---|
| 1285 | /* this request can't be pipelined but the checked connection is
|
---|
| 1286 | already in use so we skip it */
|
---|
| 1287 | continue;
|
---|
| 1288 |
|
---|
| 1289 | if(needle->localdev || needle->localport) {
|
---|
| 1290 | /* If we are bound to a specific local end (IP+port), we must not
|
---|
| 1291 | re-use a random other one, although if we didn't ask for a
|
---|
| 1292 | particular one we can reuse one that was bound.
|
---|
| 1293 |
|
---|
| 1294 | This comparison is a bit rough and too strict. Since the input
|
---|
| 1295 | parameters can be specified in numerous ways and still end up the
|
---|
| 1296 | same it would take a lot of processing to make it really accurate.
|
---|
| 1297 | Instead, this matching will assume that re-uses of bound connections
|
---|
| 1298 | will most likely also re-use the exact same binding parameters and
|
---|
| 1299 | missing out a few edge cases shouldn't hurt anyone very much.
|
---|
| 1300 | */
|
---|
| 1301 | if((check->localport != needle->localport) ||
|
---|
| 1302 | (check->localportrange != needle->localportrange) ||
|
---|
| 1303 | (needle->localdev &&
|
---|
| 1304 | (!check->localdev || strcmp(check->localdev, needle->localdev))))
|
---|
| 1305 | continue;
|
---|
| 1306 | }
|
---|
| 1307 |
|
---|
| 1308 | if(!(needle->handler->flags & PROTOPT_CREDSPERREQUEST)) {
|
---|
| 1309 | /* This protocol requires credentials per connection,
|
---|
| 1310 | so verify that we're using the same name and password as well */
|
---|
| 1311 | if(strcmp(needle->user, check->user) ||
|
---|
| 1312 | strcmp(needle->passwd, check->passwd)) {
|
---|
| 1313 | /* one of them was different */
|
---|
| 1314 | continue;
|
---|
| 1315 | }
|
---|
| 1316 | }
|
---|
| 1317 |
|
---|
| 1318 | if(!needle->bits.httpproxy || (needle->handler->flags&PROTOPT_SSL) ||
|
---|
| 1319 | needle->bits.tunnel_proxy) {
|
---|
| 1320 | /* The requested connection does not use a HTTP proxy or it uses SSL or
|
---|
| 1321 | it is a non-SSL protocol tunneled or it is a non-SSL protocol which
|
---|
| 1322 | is allowed to be upgraded via TLS */
|
---|
| 1323 |
|
---|
| 1324 | if((strcasecompare(needle->handler->scheme, check->handler->scheme) ||
|
---|
| 1325 | (get_protocol_family(check->handler->protocol) ==
|
---|
| 1326 | needle->handler->protocol && check->tls_upgraded)) &&
|
---|
| 1327 | (!needle->bits.conn_to_host || strcasecompare(
|
---|
| 1328 | needle->conn_to_host.name, check->conn_to_host.name)) &&
|
---|
| 1329 | (!needle->bits.conn_to_port ||
|
---|
| 1330 | needle->conn_to_port == check->conn_to_port) &&
|
---|
| 1331 | strcasecompare(needle->host.name, check->host.name) &&
|
---|
| 1332 | needle->remote_port == check->remote_port) {
|
---|
| 1333 | /* The schemes match or the the protocol family is the same and the
|
---|
| 1334 | previous connection was TLS upgraded, and the hostname and host
|
---|
| 1335 | port match */
|
---|
| 1336 | if(needle->handler->flags & PROTOPT_SSL) {
|
---|
| 1337 | /* This is a SSL connection so verify that we're using the same
|
---|
| 1338 | SSL options as well */
|
---|
| 1339 | if(!Curl_ssl_config_matches(&needle->ssl_config,
|
---|
| 1340 | &check->ssl_config)) {
|
---|
| 1341 | DEBUGF(infof(data,
|
---|
| 1342 | "Connection #%ld has different SSL parameters, "
|
---|
| 1343 | "can't reuse\n",
|
---|
| 1344 | check->connection_id));
|
---|
| 1345 | continue;
|
---|
| 1346 | }
|
---|
| 1347 | if(check->ssl[FIRSTSOCKET].state != ssl_connection_complete) {
|
---|
| 1348 | foundPendingCandidate = TRUE;
|
---|
| 1349 | DEBUGF(infof(data,
|
---|
| 1350 | "Connection #%ld has not started SSL connect, "
|
---|
| 1351 | "can't reuse\n",
|
---|
| 1352 | check->connection_id));
|
---|
| 1353 | continue;
|
---|
| 1354 | }
|
---|
| 1355 | }
|
---|
| 1356 | match = TRUE;
|
---|
| 1357 | }
|
---|
| 1358 | }
|
---|
| 1359 | else {
|
---|
| 1360 | /* The requested connection is using the same HTTP proxy in normal
|
---|
| 1361 | mode (no tunneling) */
|
---|
| 1362 | match = TRUE;
|
---|
| 1363 | }
|
---|
| 1364 |
|
---|
| 1365 | if(match) {
|
---|
| 1366 | #if defined(USE_NTLM)
|
---|
| 1367 | /* If we are looking for an HTTP+NTLM connection, check if this is
|
---|
| 1368 | already authenticating with the right credentials. If not, keep
|
---|
| 1369 | looking so that we can reuse NTLM connections if
|
---|
| 1370 | possible. (Especially we must not reuse the same connection if
|
---|
| 1371 | partway through a handshake!) */
|
---|
| 1372 | if(wantNTLMhttp) {
|
---|
| 1373 | if(strcmp(needle->user, check->user) ||
|
---|
| 1374 | strcmp(needle->passwd, check->passwd))
|
---|
| 1375 | continue;
|
---|
| 1376 | }
|
---|
| 1377 | else if(check->ntlm.state != NTLMSTATE_NONE) {
|
---|
| 1378 | /* Connection is using NTLM auth but we don't want NTLM */
|
---|
| 1379 | continue;
|
---|
| 1380 | }
|
---|
| 1381 |
|
---|
| 1382 | /* Same for Proxy NTLM authentication */
|
---|
| 1383 | if(wantProxyNTLMhttp) {
|
---|
| 1384 | /* Both check->http_proxy.user and check->http_proxy.passwd can be
|
---|
| 1385 | * NULL */
|
---|
| 1386 | if(!check->http_proxy.user || !check->http_proxy.passwd)
|
---|
| 1387 | continue;
|
---|
| 1388 |
|
---|
| 1389 | if(strcmp(needle->http_proxy.user, check->http_proxy.user) ||
|
---|
| 1390 | strcmp(needle->http_proxy.passwd, check->http_proxy.passwd))
|
---|
| 1391 | continue;
|
---|
| 1392 | }
|
---|
| 1393 | else if(check->proxyntlm.state != NTLMSTATE_NONE) {
|
---|
| 1394 | /* Proxy connection is using NTLM auth but we don't want NTLM */
|
---|
| 1395 | continue;
|
---|
| 1396 | }
|
---|
| 1397 |
|
---|
| 1398 | if(wantNTLMhttp || wantProxyNTLMhttp) {
|
---|
| 1399 | /* Credentials are already checked, we can use this connection */
|
---|
| 1400 | chosen = check;
|
---|
| 1401 |
|
---|
| 1402 | if((wantNTLMhttp &&
|
---|
| 1403 | (check->ntlm.state != NTLMSTATE_NONE)) ||
|
---|
| 1404 | (wantProxyNTLMhttp &&
|
---|
| 1405 | (check->proxyntlm.state != NTLMSTATE_NONE))) {
|
---|
| 1406 | /* We must use this connection, no other */
|
---|
| 1407 | *force_reuse = TRUE;
|
---|
| 1408 | break;
|
---|
| 1409 | }
|
---|
| 1410 |
|
---|
| 1411 | /* Continue look up for a better connection */
|
---|
| 1412 | continue;
|
---|
| 1413 | }
|
---|
| 1414 | #endif
|
---|
| 1415 | if(canpipe) {
|
---|
| 1416 | /* We can pipeline if we want to. Let's continue looking for
|
---|
| 1417 | the optimal connection to use, i.e the shortest pipe that is not
|
---|
| 1418 | blacklisted. */
|
---|
| 1419 |
|
---|
| 1420 | if(pipeLen == 0) {
|
---|
| 1421 | /* We have the optimal connection. Let's stop looking. */
|
---|
| 1422 | chosen = check;
|
---|
| 1423 | break;
|
---|
| 1424 | }
|
---|
| 1425 |
|
---|
| 1426 | /* We can't use the connection if the pipe is full */
|
---|
| 1427 | if(max_pipe_len && (pipeLen >= max_pipe_len)) {
|
---|
| 1428 | infof(data, "Pipe is full, skip (%zu)\n", pipeLen);
|
---|
| 1429 | continue;
|
---|
| 1430 | }
|
---|
| 1431 | #ifdef USE_NGHTTP2
|
---|
| 1432 | /* If multiplexed, make sure we don't go over concurrency limit */
|
---|
| 1433 | if(check->bits.multiplex) {
|
---|
| 1434 | /* Multiplexed connections can only be HTTP/2 for now */
|
---|
| 1435 | struct http_conn *httpc = &check->proto.httpc;
|
---|
| 1436 | if(pipeLen >= httpc->settings.max_concurrent_streams) {
|
---|
| 1437 | infof(data, "MAX_CONCURRENT_STREAMS reached, skip (%zu)\n",
|
---|
| 1438 | pipeLen);
|
---|
| 1439 | continue;
|
---|
| 1440 | }
|
---|
| 1441 | }
|
---|
| 1442 | #endif
|
---|
| 1443 | /* We can't use the connection if the pipe is penalized */
|
---|
| 1444 | if(Curl_pipeline_penalized(data, check)) {
|
---|
| 1445 | infof(data, "Penalized, skip\n");
|
---|
| 1446 | continue;
|
---|
| 1447 | }
|
---|
| 1448 |
|
---|
| 1449 | if(max_pipe_len) {
|
---|
| 1450 | if(pipeLen < best_pipe_len) {
|
---|
| 1451 | /* This connection has a shorter pipe so far. We'll pick this
|
---|
| 1452 | and continue searching */
|
---|
| 1453 | chosen = check;
|
---|
| 1454 | best_pipe_len = pipeLen;
|
---|
| 1455 | continue;
|
---|
| 1456 | }
|
---|
| 1457 | }
|
---|
| 1458 | else {
|
---|
| 1459 | /* When not pipelining (== multiplexed), we have a match here! */
|
---|
| 1460 | chosen = check;
|
---|
| 1461 | infof(data, "Multiplexed connection found!\n");
|
---|
| 1462 | break;
|
---|
| 1463 | }
|
---|
| 1464 | }
|
---|
| 1465 | else {
|
---|
| 1466 | /* We have found a connection. Let's stop searching. */
|
---|
| 1467 | chosen = check;
|
---|
| 1468 | break;
|
---|
| 1469 | }
|
---|
| 1470 | }
|
---|
| 1471 | }
|
---|
| 1472 | }
|
---|
| 1473 |
|
---|
| 1474 | if(chosen) {
|
---|
| 1475 | *usethis = chosen;
|
---|
| 1476 | return TRUE; /* yes, we found one to use! */
|
---|
| 1477 | }
|
---|
| 1478 |
|
---|
| 1479 | if(foundPendingCandidate && data->set.pipewait) {
|
---|
| 1480 | infof(data,
|
---|
| 1481 | "Found pending candidate for reuse and CURLOPT_PIPEWAIT is set\n");
|
---|
| 1482 | *waitpipe = TRUE;
|
---|
| 1483 | }
|
---|
| 1484 |
|
---|
| 1485 | return FALSE; /* no matching connecting exists */
|
---|
| 1486 | }
|
---|
| 1487 |
|
---|
| 1488 | /* after a TCP connection to the proxy has been verified, this function does
|
---|
| 1489 | the next magic step.
|
---|
| 1490 |
|
---|
| 1491 | Note: this function's sub-functions call failf()
|
---|
| 1492 |
|
---|
| 1493 | */
|
---|
| 1494 | CURLcode Curl_connected_proxy(struct connectdata *conn, int sockindex)
|
---|
| 1495 | {
|
---|
| 1496 | CURLcode result = CURLE_OK;
|
---|
| 1497 |
|
---|
| 1498 | if(conn->bits.socksproxy) {
|
---|
| 1499 | #ifndef CURL_DISABLE_PROXY
|
---|
| 1500 | /* for the secondary socket (FTP), use the "connect to host"
|
---|
| 1501 | * but ignore the "connect to port" (use the secondary port)
|
---|
| 1502 | */
|
---|
| 1503 | const char * const host = conn->bits.httpproxy ?
|
---|
| 1504 | conn->http_proxy.host.name :
|
---|
| 1505 | conn->bits.conn_to_host ?
|
---|
| 1506 | conn->conn_to_host.name :
|
---|
| 1507 | sockindex == SECONDARYSOCKET ?
|
---|
| 1508 | conn->secondaryhostname : conn->host.name;
|
---|
| 1509 | const int port = conn->bits.httpproxy ? (int)conn->http_proxy.port :
|
---|
| 1510 | sockindex == SECONDARYSOCKET ? conn->secondary_port :
|
---|
| 1511 | conn->bits.conn_to_port ? conn->conn_to_port :
|
---|
| 1512 | conn->remote_port;
|
---|
| 1513 | conn->bits.socksproxy_connecting = TRUE;
|
---|
| 1514 | switch(conn->socks_proxy.proxytype) {
|
---|
| 1515 | case CURLPROXY_SOCKS5:
|
---|
| 1516 | case CURLPROXY_SOCKS5_HOSTNAME:
|
---|
| 1517 | result = Curl_SOCKS5(conn->socks_proxy.user, conn->socks_proxy.passwd,
|
---|
| 1518 | host, port, sockindex, conn);
|
---|
| 1519 | break;
|
---|
| 1520 |
|
---|
| 1521 | case CURLPROXY_SOCKS4:
|
---|
| 1522 | case CURLPROXY_SOCKS4A:
|
---|
| 1523 | result = Curl_SOCKS4(conn->socks_proxy.user, host, port, sockindex,
|
---|
| 1524 | conn);
|
---|
| 1525 | break;
|
---|
| 1526 |
|
---|
| 1527 | default:
|
---|
| 1528 | failf(conn->data, "unknown proxytype option given");
|
---|
| 1529 | result = CURLE_COULDNT_CONNECT;
|
---|
| 1530 | } /* switch proxytype */
|
---|
| 1531 | conn->bits.socksproxy_connecting = FALSE;
|
---|
| 1532 | #else
|
---|
| 1533 | (void)sockindex;
|
---|
| 1534 | #endif /* CURL_DISABLE_PROXY */
|
---|
| 1535 | }
|
---|
| 1536 |
|
---|
| 1537 | return result;
|
---|
| 1538 | }
|
---|
| 1539 |
|
---|
| 1540 | /*
|
---|
| 1541 | * verboseconnect() displays verbose information after a connect
|
---|
| 1542 | */
|
---|
| 1543 | #ifndef CURL_DISABLE_VERBOSE_STRINGS
|
---|
| 1544 | void Curl_verboseconnect(struct connectdata *conn)
|
---|
| 1545 | {
|
---|
| 1546 | if(conn->data->set.verbose)
|
---|
| 1547 | infof(conn->data, "Connected to %s (%s) port %ld (#%ld)\n",
|
---|
| 1548 | conn->bits.socksproxy ? conn->socks_proxy.host.dispname :
|
---|
| 1549 | conn->bits.httpproxy ? conn->http_proxy.host.dispname :
|
---|
| 1550 | conn->bits.conn_to_host ? conn->conn_to_host.dispname :
|
---|
| 1551 | conn->host.dispname,
|
---|
| 1552 | conn->ip_addr_str, conn->port, conn->connection_id);
|
---|
| 1553 | }
|
---|
| 1554 | #endif
|
---|
| 1555 |
|
---|
| 1556 | int Curl_protocol_getsock(struct connectdata *conn,
|
---|
| 1557 | curl_socket_t *socks,
|
---|
| 1558 | int numsocks)
|
---|
| 1559 | {
|
---|
| 1560 | if(conn->handler->proto_getsock)
|
---|
| 1561 | return conn->handler->proto_getsock(conn, socks, numsocks);
|
---|
| 1562 | return GETSOCK_BLANK;
|
---|
| 1563 | }
|
---|
| 1564 |
|
---|
| 1565 | int Curl_doing_getsock(struct connectdata *conn,
|
---|
| 1566 | curl_socket_t *socks,
|
---|
| 1567 | int numsocks)
|
---|
| 1568 | {
|
---|
| 1569 | if(conn && conn->handler->doing_getsock)
|
---|
| 1570 | return conn->handler->doing_getsock(conn, socks, numsocks);
|
---|
| 1571 | return GETSOCK_BLANK;
|
---|
| 1572 | }
|
---|
| 1573 |
|
---|
| 1574 | /*
|
---|
| 1575 | * We are doing protocol-specific connecting and this is being called over and
|
---|
| 1576 | * over from the multi interface until the connection phase is done on
|
---|
| 1577 | * protocol layer.
|
---|
| 1578 | */
|
---|
| 1579 |
|
---|
| 1580 | CURLcode Curl_protocol_connecting(struct connectdata *conn,
|
---|
| 1581 | bool *done)
|
---|
| 1582 | {
|
---|
| 1583 | CURLcode result = CURLE_OK;
|
---|
| 1584 |
|
---|
| 1585 | if(conn && conn->handler->connecting) {
|
---|
| 1586 | *done = FALSE;
|
---|
| 1587 | result = conn->handler->connecting(conn, done);
|
---|
| 1588 | }
|
---|
| 1589 | else
|
---|
| 1590 | *done = TRUE;
|
---|
| 1591 |
|
---|
| 1592 | return result;
|
---|
| 1593 | }
|
---|
| 1594 |
|
---|
| 1595 | /*
|
---|
| 1596 | * We are DOING this is being called over and over from the multi interface
|
---|
| 1597 | * until the DOING phase is done on protocol layer.
|
---|
| 1598 | */
|
---|
| 1599 |
|
---|
| 1600 | CURLcode Curl_protocol_doing(struct connectdata *conn, bool *done)
|
---|
| 1601 | {
|
---|
| 1602 | CURLcode result = CURLE_OK;
|
---|
| 1603 |
|
---|
| 1604 | if(conn && conn->handler->doing) {
|
---|
| 1605 | *done = FALSE;
|
---|
| 1606 | result = conn->handler->doing(conn, done);
|
---|
| 1607 | }
|
---|
| 1608 | else
|
---|
| 1609 | *done = TRUE;
|
---|
| 1610 |
|
---|
| 1611 | return result;
|
---|
| 1612 | }
|
---|
| 1613 |
|
---|
| 1614 | /*
|
---|
| 1615 | * We have discovered that the TCP connection has been successful, we can now
|
---|
| 1616 | * proceed with some action.
|
---|
| 1617 | *
|
---|
| 1618 | */
|
---|
| 1619 | CURLcode Curl_protocol_connect(struct connectdata *conn,
|
---|
| 1620 | bool *protocol_done)
|
---|
| 1621 | {
|
---|
| 1622 | CURLcode result = CURLE_OK;
|
---|
| 1623 |
|
---|
| 1624 | *protocol_done = FALSE;
|
---|
| 1625 |
|
---|
| 1626 | if(conn->bits.tcpconnect[FIRSTSOCKET] && conn->bits.protoconnstart) {
|
---|
| 1627 | /* We already are connected, get back. This may happen when the connect
|
---|
| 1628 | worked fine in the first call, like when we connect to a local server
|
---|
| 1629 | or proxy. Note that we don't know if the protocol is actually done.
|
---|
| 1630 |
|
---|
| 1631 | Unless this protocol doesn't have any protocol-connect callback, as
|
---|
| 1632 | then we know we're done. */
|
---|
| 1633 | if(!conn->handler->connecting)
|
---|
| 1634 | *protocol_done = TRUE;
|
---|
| 1635 |
|
---|
| 1636 | return CURLE_OK;
|
---|
| 1637 | }
|
---|
| 1638 |
|
---|
| 1639 | if(!conn->bits.protoconnstart) {
|
---|
| 1640 |
|
---|
| 1641 | result = Curl_proxy_connect(conn, FIRSTSOCKET);
|
---|
| 1642 | if(result)
|
---|
| 1643 | return result;
|
---|
| 1644 |
|
---|
| 1645 | if(CONNECT_FIRSTSOCKET_PROXY_SSL())
|
---|
| 1646 | /* wait for HTTPS proxy SSL initialization to complete */
|
---|
| 1647 | return CURLE_OK;
|
---|
| 1648 |
|
---|
| 1649 | if(conn->bits.tunnel_proxy && conn->bits.httpproxy &&
|
---|
| 1650 | Curl_connect_ongoing(conn))
|
---|
| 1651 | /* when using an HTTP tunnel proxy, await complete tunnel establishment
|
---|
| 1652 | before proceeding further. Return CURLE_OK so we'll be called again */
|
---|
| 1653 | return CURLE_OK;
|
---|
| 1654 |
|
---|
| 1655 | if(conn->handler->connect_it) {
|
---|
| 1656 | /* is there a protocol-specific connect() procedure? */
|
---|
| 1657 |
|
---|
| 1658 | /* Call the protocol-specific connect function */
|
---|
| 1659 | result = conn->handler->connect_it(conn, protocol_done);
|
---|
| 1660 | }
|
---|
| 1661 | else
|
---|
| 1662 | *protocol_done = TRUE;
|
---|
| 1663 |
|
---|
| 1664 | /* it has started, possibly even completed but that knowledge isn't stored
|
---|
| 1665 | in this bit! */
|
---|
| 1666 | if(!result)
|
---|
| 1667 | conn->bits.protoconnstart = TRUE;
|
---|
| 1668 | }
|
---|
| 1669 |
|
---|
| 1670 | return result; /* pass back status */
|
---|
| 1671 | }
|
---|
| 1672 |
|
---|
| 1673 | /*
|
---|
| 1674 | * Helpers for IDNA conversions.
|
---|
| 1675 | */
|
---|
| 1676 | static bool is_ASCII_name(const char *hostname)
|
---|
| 1677 | {
|
---|
| 1678 | const unsigned char *ch = (const unsigned char *)hostname;
|
---|
| 1679 |
|
---|
| 1680 | while(*ch) {
|
---|
| 1681 | if(*ch++ & 0x80)
|
---|
| 1682 | return FALSE;
|
---|
| 1683 | }
|
---|
| 1684 | return TRUE;
|
---|
| 1685 | }
|
---|
| 1686 |
|
---|
| 1687 | /*
|
---|
| 1688 | * Perform any necessary IDN conversion of hostname
|
---|
| 1689 | */
|
---|
| 1690 | static CURLcode fix_hostname(struct connectdata *conn, struct hostname *host)
|
---|
| 1691 | {
|
---|
| 1692 | size_t len;
|
---|
| 1693 | struct Curl_easy *data = conn->data;
|
---|
| 1694 |
|
---|
| 1695 | #ifndef USE_LIBIDN2
|
---|
| 1696 | (void)data;
|
---|
| 1697 | (void)conn;
|
---|
| 1698 | #elif defined(CURL_DISABLE_VERBOSE_STRINGS)
|
---|
| 1699 | (void)conn;
|
---|
| 1700 | #endif
|
---|
| 1701 |
|
---|
| 1702 | /* set the name we use to display the host name */
|
---|
| 1703 | host->dispname = host->name;
|
---|
| 1704 |
|
---|
| 1705 | len = strlen(host->name);
|
---|
| 1706 | if(len && (host->name[len-1] == '.'))
|
---|
| 1707 | /* strip off a single trailing dot if present, primarily for SNI but
|
---|
| 1708 | there's no use for it */
|
---|
| 1709 | host->name[len-1] = 0;
|
---|
| 1710 |
|
---|
| 1711 | /* Check name for non-ASCII and convert hostname to ACE form if we can */
|
---|
| 1712 | if(!is_ASCII_name(host->name)) {
|
---|
| 1713 | #ifdef USE_LIBIDN2
|
---|
| 1714 | if(idn2_check_version(IDN2_VERSION)) {
|
---|
| 1715 | char *ace_hostname = NULL;
|
---|
| 1716 | #if IDN2_VERSION_NUMBER >= 0x00140000
|
---|
| 1717 | /* IDN2_NFC_INPUT: Normalize input string using normalization form C.
|
---|
| 1718 | IDN2_NONTRANSITIONAL: Perform Unicode TR46 non-transitional
|
---|
| 1719 | processing. */
|
---|
| 1720 | int flags = IDN2_NFC_INPUT | IDN2_NONTRANSITIONAL;
|
---|
| 1721 | #else
|
---|
| 1722 | int flags = IDN2_NFC_INPUT;
|
---|
| 1723 | #endif
|
---|
| 1724 | int rc = idn2_lookup_ul((const char *)host->name, &ace_hostname, flags);
|
---|
| 1725 | if(rc == IDN2_OK) {
|
---|
| 1726 | host->encalloc = (char *)ace_hostname;
|
---|
| 1727 | /* change the name pointer to point to the encoded hostname */
|
---|
| 1728 | host->name = host->encalloc;
|
---|
| 1729 | }
|
---|
| 1730 | else {
|
---|
| 1731 | failf(data, "Failed to convert %s to ACE; %s\n", host->name,
|
---|
| 1732 | idn2_strerror(rc));
|
---|
| 1733 | return CURLE_URL_MALFORMAT;
|
---|
| 1734 | }
|
---|
| 1735 | }
|
---|
| 1736 | #elif defined(USE_WIN32_IDN)
|
---|
| 1737 | char *ace_hostname = NULL;
|
---|
| 1738 |
|
---|
| 1739 | if(curl_win32_idn_to_ascii(host->name, &ace_hostname)) {
|
---|
| 1740 | host->encalloc = ace_hostname;
|
---|
| 1741 | /* change the name pointer to point to the encoded hostname */
|
---|
| 1742 | host->name = host->encalloc;
|
---|
| 1743 | }
|
---|
| 1744 | else {
|
---|
| 1745 | failf(data, "Failed to convert %s to ACE;\n", host->name);
|
---|
| 1746 | return CURLE_URL_MALFORMAT;
|
---|
| 1747 | }
|
---|
| 1748 | #else
|
---|
| 1749 | infof(data, "IDN support not present, can't parse Unicode domains\n");
|
---|
| 1750 | #endif
|
---|
| 1751 | }
|
---|
| 1752 | {
|
---|
| 1753 | char *hostp;
|
---|
| 1754 | for(hostp = host->name; *hostp; hostp++) {
|
---|
| 1755 | if(*hostp <= 32) {
|
---|
| 1756 | failf(data, "Host name '%s' contains bad letter", host->name);
|
---|
| 1757 | return CURLE_URL_MALFORMAT;
|
---|
| 1758 | }
|
---|
| 1759 | }
|
---|
| 1760 | }
|
---|
| 1761 | return CURLE_OK;
|
---|
| 1762 | }
|
---|
| 1763 |
|
---|
| 1764 | /*
|
---|
| 1765 | * Frees data allocated by fix_hostname()
|
---|
| 1766 | */
|
---|
| 1767 | static void free_fixed_hostname(struct hostname *host)
|
---|
| 1768 | {
|
---|
| 1769 | #if defined(USE_LIBIDN2)
|
---|
| 1770 | if(host->encalloc) {
|
---|
| 1771 | idn2_free(host->encalloc); /* must be freed with idn2_free() since this was
|
---|
| 1772 | allocated by libidn */
|
---|
| 1773 | host->encalloc = NULL;
|
---|
| 1774 | }
|
---|
| 1775 | #elif defined(USE_WIN32_IDN)
|
---|
| 1776 | free(host->encalloc); /* must be freed with free() since this was
|
---|
| 1777 | allocated by curl_win32_idn_to_ascii */
|
---|
| 1778 | host->encalloc = NULL;
|
---|
| 1779 | #else
|
---|
| 1780 | (void)host;
|
---|
| 1781 | #endif
|
---|
| 1782 | }
|
---|
| 1783 |
|
---|
| 1784 | static void llist_dtor(void *user, void *element)
|
---|
| 1785 | {
|
---|
| 1786 | (void)user;
|
---|
| 1787 | (void)element;
|
---|
| 1788 | /* Do nothing */
|
---|
| 1789 | }
|
---|
| 1790 |
|
---|
| 1791 | /*
|
---|
| 1792 | * Allocate and initialize a new connectdata object.
|
---|
| 1793 | */
|
---|
| 1794 | static struct connectdata *allocate_conn(struct Curl_easy *data)
|
---|
| 1795 | {
|
---|
| 1796 | struct connectdata *conn;
|
---|
| 1797 | size_t connsize = sizeof(struct connectdata);
|
---|
| 1798 |
|
---|
| 1799 | #ifdef USE_SSL
|
---|
| 1800 | /* SSLBK_MAX_ALIGN: The max byte alignment a CPU would use */
|
---|
| 1801 | #define SSLBK_MAX_ALIGN 32
|
---|
| 1802 | /* The SSL backend-specific data (ssl_backend_data) objects are allocated as
|
---|
| 1803 | part of connectdata at the end. To ensure suitable alignment we will
|
---|
| 1804 | assume a maximum of SSLBK_MAX_ALIGN for alignment. Since calloc returns a
|
---|
| 1805 | pointer suitably aligned for any variable this will ensure the
|
---|
| 1806 | ssl_backend_data array has proper alignment, even if that alignment turns
|
---|
| 1807 | out to be less than SSLBK_MAX_ALIGN. */
|
---|
| 1808 | size_t paddingsize = sizeof(struct connectdata) % SSLBK_MAX_ALIGN;
|
---|
| 1809 | size_t alignsize = paddingsize ? (SSLBK_MAX_ALIGN - paddingsize) : 0;
|
---|
| 1810 | size_t sslbksize = Curl_ssl->sizeof_ssl_backend_data;
|
---|
| 1811 | connsize += alignsize + (4 * sslbksize);
|
---|
| 1812 | #endif
|
---|
| 1813 |
|
---|
| 1814 | conn = calloc(1, connsize);
|
---|
| 1815 | if(!conn)
|
---|
| 1816 | return NULL;
|
---|
| 1817 |
|
---|
| 1818 | #ifdef USE_SSL
|
---|
| 1819 | /* Point to the ssl_backend_data objects at the end of connectdata.
|
---|
| 1820 | Note that these backend pointers can be swapped by vtls (eg ssl backend
|
---|
| 1821 | data becomes proxy backend data). */
|
---|
| 1822 | {
|
---|
| 1823 | char *end = (char *)conn + connsize;
|
---|
| 1824 | conn->ssl[0].backend = ((void *)(end - (4 * sslbksize)));
|
---|
| 1825 | conn->ssl[1].backend = ((void *)(end - (3 * sslbksize)));
|
---|
| 1826 | conn->proxy_ssl[0].backend = ((void *)(end - (2 * sslbksize)));
|
---|
| 1827 | conn->proxy_ssl[1].backend = ((void *)(end - (1 * sslbksize)));
|
---|
| 1828 | }
|
---|
| 1829 | #endif
|
---|
| 1830 |
|
---|
| 1831 | conn->handler = &Curl_handler_dummy; /* Be sure we have a handler defined
|
---|
| 1832 | already from start to avoid NULL
|
---|
| 1833 | situations and checks */
|
---|
| 1834 |
|
---|
| 1835 | /* and we setup a few fields in case we end up actually using this struct */
|
---|
| 1836 |
|
---|
| 1837 | conn->sock[FIRSTSOCKET] = CURL_SOCKET_BAD; /* no file descriptor */
|
---|
| 1838 | conn->sock[SECONDARYSOCKET] = CURL_SOCKET_BAD; /* no file descriptor */
|
---|
| 1839 | conn->tempsock[0] = CURL_SOCKET_BAD; /* no file descriptor */
|
---|
| 1840 | conn->tempsock[1] = CURL_SOCKET_BAD; /* no file descriptor */
|
---|
| 1841 | conn->connection_id = -1; /* no ID */
|
---|
| 1842 | conn->port = -1; /* unknown at this point */
|
---|
| 1843 | conn->remote_port = -1; /* unknown at this point */
|
---|
| 1844 | #if defined(USE_RECV_BEFORE_SEND_WORKAROUND) && defined(DEBUGBUILD)
|
---|
| 1845 | conn->postponed[0].bindsock = CURL_SOCKET_BAD; /* no file descriptor */
|
---|
| 1846 | conn->postponed[1].bindsock = CURL_SOCKET_BAD; /* no file descriptor */
|
---|
| 1847 | #endif /* USE_RECV_BEFORE_SEND_WORKAROUND && DEBUGBUILD */
|
---|
| 1848 |
|
---|
| 1849 | /* Default protocol-independent behavior doesn't support persistent
|
---|
| 1850 | connections, so we set this to force-close. Protocols that support
|
---|
| 1851 | this need to set this to FALSE in their "curl_do" functions. */
|
---|
| 1852 | connclose(conn, "Default to force-close");
|
---|
| 1853 |
|
---|
| 1854 | /* Store creation time to help future close decision making */
|
---|
| 1855 | conn->created = Curl_now();
|
---|
| 1856 |
|
---|
| 1857 | conn->data = data; /* Setup the association between this connection
|
---|
| 1858 | and the Curl_easy */
|
---|
| 1859 |
|
---|
| 1860 | conn->http_proxy.proxytype = data->set.proxytype;
|
---|
| 1861 | conn->socks_proxy.proxytype = CURLPROXY_SOCKS4;
|
---|
| 1862 |
|
---|
| 1863 | #ifdef CURL_DISABLE_PROXY
|
---|
| 1864 |
|
---|
| 1865 | conn->bits.proxy = FALSE;
|
---|
| 1866 | conn->bits.httpproxy = FALSE;
|
---|
| 1867 | conn->bits.socksproxy = FALSE;
|
---|
| 1868 | conn->bits.proxy_user_passwd = FALSE;
|
---|
| 1869 | conn->bits.tunnel_proxy = FALSE;
|
---|
| 1870 |
|
---|
| 1871 | #else /* CURL_DISABLE_PROXY */
|
---|
| 1872 |
|
---|
| 1873 | /* note that these two proxy bits are now just on what looks to be
|
---|
| 1874 | requested, they may be altered down the road */
|
---|
| 1875 | conn->bits.proxy = (data->set.str[STRING_PROXY] &&
|
---|
| 1876 | *data->set.str[STRING_PROXY]) ? TRUE : FALSE;
|
---|
| 1877 | conn->bits.httpproxy = (conn->bits.proxy &&
|
---|
| 1878 | (conn->http_proxy.proxytype == CURLPROXY_HTTP ||
|
---|
| 1879 | conn->http_proxy.proxytype == CURLPROXY_HTTP_1_0 ||
|
---|
| 1880 | conn->http_proxy.proxytype == CURLPROXY_HTTPS)) ?
|
---|
| 1881 | TRUE : FALSE;
|
---|
| 1882 | conn->bits.socksproxy = (conn->bits.proxy &&
|
---|
| 1883 | !conn->bits.httpproxy) ? TRUE : FALSE;
|
---|
| 1884 |
|
---|
| 1885 | if(data->set.str[STRING_PRE_PROXY] && *data->set.str[STRING_PRE_PROXY]) {
|
---|
| 1886 | conn->bits.proxy = TRUE;
|
---|
| 1887 | conn->bits.socksproxy = TRUE;
|
---|
| 1888 | }
|
---|
| 1889 |
|
---|
| 1890 | conn->bits.proxy_user_passwd =
|
---|
| 1891 | (data->set.str[STRING_PROXYUSERNAME]) ? TRUE : FALSE;
|
---|
| 1892 | conn->bits.tunnel_proxy = data->set.tunnel_thru_httpproxy;
|
---|
| 1893 |
|
---|
| 1894 | #endif /* CURL_DISABLE_PROXY */
|
---|
| 1895 |
|
---|
| 1896 | conn->bits.user_passwd = (data->set.str[STRING_USERNAME]) ? TRUE : FALSE;
|
---|
| 1897 | conn->bits.ftp_use_epsv = data->set.ftp_use_epsv;
|
---|
| 1898 | conn->bits.ftp_use_eprt = data->set.ftp_use_eprt;
|
---|
| 1899 |
|
---|
| 1900 | conn->ssl_config.verifystatus = data->set.ssl.primary.verifystatus;
|
---|
| 1901 | conn->ssl_config.verifypeer = data->set.ssl.primary.verifypeer;
|
---|
| 1902 | conn->ssl_config.verifyhost = data->set.ssl.primary.verifyhost;
|
---|
| 1903 | conn->proxy_ssl_config.verifystatus =
|
---|
| 1904 | data->set.proxy_ssl.primary.verifystatus;
|
---|
| 1905 | conn->proxy_ssl_config.verifypeer = data->set.proxy_ssl.primary.verifypeer;
|
---|
| 1906 | conn->proxy_ssl_config.verifyhost = data->set.proxy_ssl.primary.verifyhost;
|
---|
| 1907 |
|
---|
| 1908 | conn->ip_version = data->set.ipver;
|
---|
| 1909 |
|
---|
| 1910 | #if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
|
---|
| 1911 | defined(NTLM_WB_ENABLED)
|
---|
| 1912 | conn->ntlm_auth_hlpr_socket = CURL_SOCKET_BAD;
|
---|
| 1913 | conn->ntlm_auth_hlpr_pid = 0;
|
---|
| 1914 | conn->challenge_header = NULL;
|
---|
| 1915 | conn->response_header = NULL;
|
---|
| 1916 | #endif
|
---|
| 1917 |
|
---|
| 1918 | if(Curl_pipeline_wanted(data->multi, CURLPIPE_HTTP1) &&
|
---|
| 1919 | !conn->master_buffer) {
|
---|
| 1920 | /* Allocate master_buffer to be used for HTTP/1 pipelining */
|
---|
| 1921 | conn->master_buffer = calloc(MASTERBUF_SIZE, sizeof(char));
|
---|
| 1922 | if(!conn->master_buffer)
|
---|
| 1923 | goto error;
|
---|
| 1924 | }
|
---|
| 1925 |
|
---|
| 1926 | /* Initialize the pipeline lists */
|
---|
| 1927 | Curl_llist_init(&conn->send_pipe, (curl_llist_dtor) llist_dtor);
|
---|
| 1928 | Curl_llist_init(&conn->recv_pipe, (curl_llist_dtor) llist_dtor);
|
---|
| 1929 |
|
---|
| 1930 | #ifdef HAVE_GSSAPI
|
---|
| 1931 | conn->data_prot = PROT_CLEAR;
|
---|
| 1932 | #endif
|
---|
| 1933 |
|
---|
| 1934 | /* Store the local bind parameters that will be used for this connection */
|
---|
| 1935 | if(data->set.str[STRING_DEVICE]) {
|
---|
| 1936 | conn->localdev = strdup(data->set.str[STRING_DEVICE]);
|
---|
| 1937 | if(!conn->localdev)
|
---|
| 1938 | goto error;
|
---|
| 1939 | }
|
---|
| 1940 | conn->localportrange = data->set.localportrange;
|
---|
| 1941 | conn->localport = data->set.localport;
|
---|
| 1942 |
|
---|
| 1943 | /* the close socket stuff needs to be copied to the connection struct as
|
---|
| 1944 | it may live on without (this specific) Curl_easy */
|
---|
| 1945 | conn->fclosesocket = data->set.fclosesocket;
|
---|
| 1946 | conn->closesocket_client = data->set.closesocket_client;
|
---|
| 1947 |
|
---|
| 1948 | return conn;
|
---|
| 1949 | error:
|
---|
| 1950 |
|
---|
| 1951 | Curl_llist_destroy(&conn->send_pipe, NULL);
|
---|
| 1952 | Curl_llist_destroy(&conn->recv_pipe, NULL);
|
---|
| 1953 |
|
---|
| 1954 | free(conn->master_buffer);
|
---|
| 1955 | free(conn->localdev);
|
---|
| 1956 | free(conn);
|
---|
| 1957 | return NULL;
|
---|
| 1958 | }
|
---|
| 1959 |
|
---|
| 1960 | static CURLcode findprotocol(struct Curl_easy *data,
|
---|
| 1961 | struct connectdata *conn,
|
---|
| 1962 | const char *protostr)
|
---|
| 1963 | {
|
---|
| 1964 | const struct Curl_handler * const *pp;
|
---|
| 1965 | const struct Curl_handler *p;
|
---|
| 1966 |
|
---|
| 1967 | /* Scan protocol handler table and match against 'protostr' to set a few
|
---|
| 1968 | variables based on the URL. Now that the handler may be changed later
|
---|
| 1969 | when the protocol specific setup function is called. */
|
---|
| 1970 | for(pp = protocols; (p = *pp) != NULL; pp++) {
|
---|
| 1971 | if(strcasecompare(p->scheme, protostr)) {
|
---|
| 1972 | /* Protocol found in table. Check if allowed */
|
---|
| 1973 | if(!(data->set.allowed_protocols & p->protocol))
|
---|
| 1974 | /* nope, get out */
|
---|
| 1975 | break;
|
---|
| 1976 |
|
---|
| 1977 | /* it is allowed for "normal" request, now do an extra check if this is
|
---|
| 1978 | the result of a redirect */
|
---|
| 1979 | if(data->state.this_is_a_follow &&
|
---|
| 1980 | !(data->set.redir_protocols & p->protocol))
|
---|
| 1981 | /* nope, get out */
|
---|
| 1982 | break;
|
---|
| 1983 |
|
---|
| 1984 | /* Perform setup complement if some. */
|
---|
| 1985 | conn->handler = conn->given = p;
|
---|
| 1986 |
|
---|
| 1987 | /* 'port' and 'remote_port' are set in setup_connection_internals() */
|
---|
| 1988 | return CURLE_OK;
|
---|
| 1989 | }
|
---|
| 1990 | }
|
---|
| 1991 |
|
---|
| 1992 |
|
---|
| 1993 | /* The protocol was not found in the table, but we don't have to assign it
|
---|
| 1994 | to anything since it is already assigned to a dummy-struct in the
|
---|
| 1995 | create_conn() function when the connectdata struct is allocated. */
|
---|
| 1996 | failf(data, "Protocol \"%s\" not supported or disabled in " LIBCURL_NAME,
|
---|
| 1997 | protostr);
|
---|
| 1998 |
|
---|
| 1999 | return CURLE_UNSUPPORTED_PROTOCOL;
|
---|
| 2000 | }
|
---|
| 2001 |
|
---|
| 2002 | /*
|
---|
| 2003 | * Parse URL and fill in the relevant members of the connection struct.
|
---|
| 2004 | */
|
---|
| 2005 | static CURLcode parseurlandfillconn(struct Curl_easy *data,
|
---|
| 2006 | struct connectdata *conn,
|
---|
| 2007 | bool *prot_missing,
|
---|
| 2008 | char **userp, char **passwdp,
|
---|
| 2009 | char **optionsp)
|
---|
| 2010 | {
|
---|
| 2011 | char *at;
|
---|
| 2012 | char *fragment;
|
---|
| 2013 | char *path = data->state.path;
|
---|
| 2014 | char *query;
|
---|
| 2015 | int i;
|
---|
| 2016 | int rc;
|
---|
| 2017 | const char *protop = "";
|
---|
| 2018 | CURLcode result;
|
---|
| 2019 | bool rebuild_url = FALSE;
|
---|
| 2020 | bool url_has_scheme = FALSE;
|
---|
| 2021 | char protobuf[16];
|
---|
| 2022 |
|
---|
| 2023 | *prot_missing = FALSE;
|
---|
| 2024 |
|
---|
| 2025 | /* We might pass the entire URL into the request so we need to make sure
|
---|
| 2026 | * there are no bad characters in there.*/
|
---|
| 2027 | if(strpbrk(data->change.url, "\r\n")) {
|
---|
| 2028 | failf(data, "Illegal characters found in URL");
|
---|
| 2029 | return CURLE_URL_MALFORMAT;
|
---|
| 2030 | }
|
---|
| 2031 |
|
---|
| 2032 | /*************************************************************
|
---|
| 2033 | * Parse the URL.
|
---|
| 2034 | *
|
---|
| 2035 | * We need to parse the url even when using the proxy, because we will need
|
---|
| 2036 | * the hostname and port in case we are trying to SSL connect through the
|
---|
| 2037 | * proxy -- and we don't know if we will need to use SSL until we parse the
|
---|
| 2038 | * url ...
|
---|
| 2039 | ************************************************************/
|
---|
| 2040 | if(data->change.url[0] == ':') {
|
---|
| 2041 | failf(data, "Bad URL, colon is first character");
|
---|
| 2042 | return CURLE_URL_MALFORMAT;
|
---|
| 2043 | }
|
---|
| 2044 |
|
---|
| 2045 | /* MSDOS/Windows style drive prefix, eg c: in c:foo */
|
---|
| 2046 | #define STARTS_WITH_DRIVE_PREFIX(str) \
|
---|
| 2047 | ((('a' <= str[0] && str[0] <= 'z') || \
|
---|
| 2048 | ('A' <= str[0] && str[0] <= 'Z')) && \
|
---|
| 2049 | (str[1] == ':'))
|
---|
| 2050 |
|
---|
| 2051 | /* MSDOS/Windows style drive prefix, optionally with
|
---|
| 2052 | * a '|' instead of ':', followed by a slash or NUL */
|
---|
| 2053 | #define STARTS_WITH_URL_DRIVE_PREFIX(str) \
|
---|
| 2054 | ((('a' <= (str)[0] && (str)[0] <= 'z') || \
|
---|
| 2055 | ('A' <= (str)[0] && (str)[0] <= 'Z')) && \
|
---|
| 2056 | ((str)[1] == ':' || (str)[1] == '|') && \
|
---|
| 2057 | ((str)[2] == '/' || (str)[2] == 0))
|
---|
| 2058 |
|
---|
| 2059 | /* Don't mistake a drive letter for a scheme if the default protocol is file.
|
---|
| 2060 | curld --proto-default file c:/foo/bar.txt */
|
---|
| 2061 | if(STARTS_WITH_DRIVE_PREFIX(data->change.url) &&
|
---|
| 2062 | data->set.str[STRING_DEFAULT_PROTOCOL] &&
|
---|
| 2063 | strcasecompare(data->set.str[STRING_DEFAULT_PROTOCOL], "file")) {
|
---|
| 2064 | ; /* do nothing */
|
---|
| 2065 | }
|
---|
| 2066 | else { /* check for a scheme */
|
---|
| 2067 | for(i = 0; i < 16 && data->change.url[i]; ++i) {
|
---|
| 2068 | if(data->change.url[i] == '/')
|
---|
| 2069 | break;
|
---|
| 2070 | if(data->change.url[i] == ':') {
|
---|
| 2071 | url_has_scheme = TRUE;
|
---|
| 2072 | break;
|
---|
| 2073 | }
|
---|
| 2074 | }
|
---|
| 2075 | }
|
---|
| 2076 |
|
---|
| 2077 | /* handle the file: scheme */
|
---|
| 2078 | if((url_has_scheme && strncasecompare(data->change.url, "file:", 5)) ||
|
---|
| 2079 | (!url_has_scheme && data->set.str[STRING_DEFAULT_PROTOCOL] &&
|
---|
| 2080 | strcasecompare(data->set.str[STRING_DEFAULT_PROTOCOL], "file"))) {
|
---|
| 2081 | if(url_has_scheme)
|
---|
| 2082 | rc = sscanf(data->change.url, "%*15[^\n/:]:%[^\n]", path);
|
---|
| 2083 | else
|
---|
| 2084 | rc = sscanf(data->change.url, "%[^\n]", path);
|
---|
| 2085 |
|
---|
| 2086 | if(rc != 1) {
|
---|
| 2087 | failf(data, "Bad URL");
|
---|
| 2088 | return CURLE_URL_MALFORMAT;
|
---|
| 2089 | }
|
---|
| 2090 |
|
---|
| 2091 | if(url_has_scheme && path[0] == '/' && path[1] == '/' &&
|
---|
| 2092 | path[2] == '/' && path[3] == '/') {
|
---|
| 2093 | /* This appears to be a UNC string (usually indicating a SMB share).
|
---|
| 2094 | * We don't do SMB in file: URLs. (TODO?)
|
---|
| 2095 | */
|
---|
| 2096 | failf(data, "SMB shares are not supported in file: URLs.");
|
---|
| 2097 | return CURLE_URL_MALFORMAT;
|
---|
| 2098 | }
|
---|
| 2099 |
|
---|
| 2100 | /* Extra handling URLs with an authority component (i.e. that start with
|
---|
| 2101 | * "file://")
|
---|
| 2102 | *
|
---|
| 2103 | * We allow omitted hostname (e.g. file:/<path>) -- valid according to
|
---|
| 2104 | * RFC 8089, but not the (current) WHAT-WG URL spec.
|
---|
| 2105 | */
|
---|
| 2106 | if(url_has_scheme && path[0] == '/' && path[1] == '/') {
|
---|
| 2107 | /* swallow the two slashes */
|
---|
| 2108 | char *ptr = &path[2];
|
---|
| 2109 |
|
---|
| 2110 | /*
|
---|
| 2111 | * According to RFC 8089, a file: URL can be reliably dereferenced if:
|
---|
| 2112 | *
|
---|
| 2113 | * o it has no/blank hostname, or
|
---|
| 2114 | *
|
---|
| 2115 | * o the hostname matches "localhost" (case-insensitively), or
|
---|
| 2116 | *
|
---|
| 2117 | * o the hostname is a FQDN that resolves to this machine.
|
---|
| 2118 | *
|
---|
| 2119 | * For brevity, we only consider URLs with empty, "localhost", or
|
---|
| 2120 | * "127.0.0.1" hostnames as local.
|
---|
| 2121 | *
|
---|
| 2122 | * Additionally, there is an exception for URLs with a Windows drive
|
---|
| 2123 | * letter in the authority (which was accidentally omitted from RFC 8089
|
---|
| 2124 | * Appendix E, but believe me, it was meant to be there. --MK)
|
---|
| 2125 | */
|
---|
| 2126 | if(ptr[0] != '/' && !STARTS_WITH_URL_DRIVE_PREFIX(ptr)) {
|
---|
| 2127 | /* the URL includes a host name, it must match "localhost" or
|
---|
| 2128 | "127.0.0.1" to be valid */
|
---|
| 2129 | if(!checkprefix("localhost/", ptr) &&
|
---|
| 2130 | !checkprefix("127.0.0.1/", ptr)) {
|
---|
| 2131 | failf(data, "Invalid file://hostname/, "
|
---|
| 2132 | "expected localhost or 127.0.0.1 or none");
|
---|
| 2133 | return CURLE_URL_MALFORMAT;
|
---|
| 2134 | }
|
---|
| 2135 | ptr += 9; /* now points to the slash after the host */
|
---|
| 2136 | }
|
---|
| 2137 |
|
---|
| 2138 | /*
|
---|
| 2139 | * RFC 8089, Appendix D, Section D.1, says:
|
---|
| 2140 | *
|
---|
| 2141 | * > In a POSIX file system, the root of the file system is represented
|
---|
| 2142 | * > as a directory with a zero-length name, usually written as "/"; the
|
---|
| 2143 | * > presence of this root in a file URI can be taken as given by the
|
---|
| 2144 | * > initial slash in the "path-absolute" rule.
|
---|
| 2145 | *
|
---|
| 2146 | * i.e. the first slash is part of the path.
|
---|
| 2147 | *
|
---|
| 2148 | * However in RFC 1738 the "/" between the host (or port) and the
|
---|
| 2149 | * URL-path was NOT part of the URL-path. Any agent that followed the
|
---|
| 2150 | * older spec strictly, and wanted to refer to a file with an absolute
|
---|
| 2151 | * path, would have included a second slash. So if there are two
|
---|
| 2152 | * slashes, swallow one.
|
---|
| 2153 | */
|
---|
| 2154 | if('/' == ptr[1]) /* note: the only way ptr[0]!='/' is if ptr[1]==':' */
|
---|
| 2155 | ptr++;
|
---|
| 2156 |
|
---|
| 2157 | /* This cannot be done with strcpy, as the memory chunks overlap! */
|
---|
| 2158 | memmove(path, ptr, strlen(ptr) + 1);
|
---|
| 2159 | }
|
---|
| 2160 |
|
---|
| 2161 | #if !defined(MSDOS) && !defined(WIN32) && !defined(__CYGWIN__)
|
---|
| 2162 | /* Don't allow Windows drive letters when not in Windows.
|
---|
| 2163 | * This catches both "file:/c:" and "file:c:" */
|
---|
| 2164 | if(('/' == path[0] && STARTS_WITH_URL_DRIVE_PREFIX(&path[1])) ||
|
---|
| 2165 | STARTS_WITH_URL_DRIVE_PREFIX(path)) {
|
---|
| 2166 | failf(data, "File drive letters are only accepted in MSDOS/Windows.");
|
---|
| 2167 | return CURLE_URL_MALFORMAT;
|
---|
| 2168 | }
|
---|
| 2169 | #else
|
---|
| 2170 | /* If the path starts with a slash and a drive letter, ditch the slash */
|
---|
| 2171 | if('/' == path[0] && STARTS_WITH_URL_DRIVE_PREFIX(&path[1])) {
|
---|
| 2172 | /* This cannot be done with strcpy, as the memory chunks overlap! */
|
---|
| 2173 | memmove(path, &path[1], strlen(&path[1]) + 1);
|
---|
| 2174 | }
|
---|
| 2175 | #endif
|
---|
| 2176 |
|
---|
| 2177 | protop = "file"; /* protocol string */
|
---|
| 2178 | *prot_missing = !url_has_scheme;
|
---|
| 2179 | }
|
---|
| 2180 | else {
|
---|
| 2181 | /* clear path */
|
---|
| 2182 | char slashbuf[4];
|
---|
| 2183 | path[0] = 0;
|
---|
| 2184 |
|
---|
| 2185 | rc = sscanf(data->change.url,
|
---|
| 2186 | "%15[^\n/:]:%3[/]%[^\n/?#]%[^\n]",
|
---|
| 2187 | protobuf, slashbuf, conn->host.name, path);
|
---|
| 2188 | if(2 == rc) {
|
---|
| 2189 | failf(data, "Bad URL");
|
---|
| 2190 | return CURLE_URL_MALFORMAT;
|
---|
| 2191 | }
|
---|
| 2192 | if(3 > rc) {
|
---|
| 2193 |
|
---|
| 2194 | /*
|
---|
| 2195 | * The URL was badly formatted, let's try the browser-style _without_
|
---|
| 2196 | * protocol specified like 'http://'.
|
---|
| 2197 | */
|
---|
| 2198 | rc = sscanf(data->change.url, "%[^\n/?#]%[^\n]", conn->host.name, path);
|
---|
| 2199 | if(1 > rc) {
|
---|
| 2200 | /*
|
---|
| 2201 | * We couldn't even get this format.
|
---|
| 2202 | * djgpp 2.04 has a sscanf() bug where 'conn->host.name' is
|
---|
| 2203 | * assigned, but the return value is EOF!
|
---|
| 2204 | */
|
---|
| 2205 | #if defined(__DJGPP__) && (DJGPP_MINOR == 4)
|
---|
| 2206 | if(!(rc == -1 && *conn->host.name))
|
---|
| 2207 | #endif
|
---|
| 2208 | {
|
---|
| 2209 | failf(data, "<url> malformed");
|
---|
| 2210 | return CURLE_URL_MALFORMAT;
|
---|
| 2211 | }
|
---|
| 2212 | }
|
---|
| 2213 |
|
---|
| 2214 | /*
|
---|
| 2215 | * Since there was no protocol part specified in the URL use the
|
---|
| 2216 | * user-specified default protocol. If we weren't given a default make a
|
---|
| 2217 | * guess by matching some protocols against the host's outermost
|
---|
| 2218 | * sub-domain name. Finally if there was no match use HTTP.
|
---|
| 2219 | */
|
---|
| 2220 |
|
---|
| 2221 | protop = data->set.str[STRING_DEFAULT_PROTOCOL];
|
---|
| 2222 | if(!protop) {
|
---|
| 2223 | /* Note: if you add a new protocol, please update the list in
|
---|
| 2224 | * lib/version.c too! */
|
---|
| 2225 | if(checkprefix("FTP.", conn->host.name))
|
---|
| 2226 | protop = "ftp";
|
---|
| 2227 | else if(checkprefix("DICT.", conn->host.name))
|
---|
| 2228 | protop = "DICT";
|
---|
| 2229 | else if(checkprefix("LDAP.", conn->host.name))
|
---|
| 2230 | protop = "LDAP";
|
---|
| 2231 | else if(checkprefix("IMAP.", conn->host.name))
|
---|
| 2232 | protop = "IMAP";
|
---|
| 2233 | else if(checkprefix("SMTP.", conn->host.name))
|
---|
| 2234 | protop = "smtp";
|
---|
| 2235 | else if(checkprefix("POP3.", conn->host.name))
|
---|
| 2236 | protop = "pop3";
|
---|
| 2237 | else
|
---|
| 2238 | protop = "http";
|
---|
| 2239 | }
|
---|
| 2240 |
|
---|
| 2241 | *prot_missing = TRUE; /* not given in URL */
|
---|
| 2242 | }
|
---|
| 2243 | else {
|
---|
| 2244 | size_t s = strlen(slashbuf);
|
---|
| 2245 | protop = protobuf;
|
---|
| 2246 | if(s != 2) {
|
---|
| 2247 | infof(data, "Unwillingly accepted illegal URL using %d slash%s!\n",
|
---|
| 2248 | s, s>1?"es":"");
|
---|
| 2249 |
|
---|
| 2250 | if(data->change.url_alloc)
|
---|
| 2251 | free(data->change.url);
|
---|
| 2252 | /* repair the URL to use two slashes */
|
---|
| 2253 | data->change.url = aprintf("%s://%s%s",
|
---|
| 2254 | protobuf, conn->host.name, path);
|
---|
| 2255 | if(!data->change.url)
|
---|
| 2256 | return CURLE_OUT_OF_MEMORY;
|
---|
| 2257 | data->change.url_alloc = TRUE;
|
---|
| 2258 | }
|
---|
| 2259 | }
|
---|
| 2260 | }
|
---|
| 2261 |
|
---|
| 2262 | /* We search for '?' in the host name (but only on the right side of a
|
---|
| 2263 | * @-letter to allow ?-letters in username and password) to handle things
|
---|
| 2264 | * like http://example.com?param= (notice the missing '/').
|
---|
| 2265 | */
|
---|
| 2266 | at = strchr(conn->host.name, '@');
|
---|
| 2267 | if(at)
|
---|
| 2268 | query = strchr(at + 1, '?');
|
---|
| 2269 | else
|
---|
| 2270 | query = strchr(conn->host.name, '?');
|
---|
| 2271 |
|
---|
| 2272 | if(query) {
|
---|
| 2273 | /* We must insert a slash before the '?'-letter in the URL. If the URL had
|
---|
| 2274 | a slash after the '?', that is where the path currently begins and the
|
---|
| 2275 | '?string' is still part of the host name.
|
---|
| 2276 |
|
---|
| 2277 | We must move the trailing part from the host name and put it first in
|
---|
| 2278 | the path. And have it all prefixed with a slash.
|
---|
| 2279 | */
|
---|
| 2280 |
|
---|
| 2281 | size_t hostlen = strlen(query);
|
---|
| 2282 | size_t pathlen = strlen(path);
|
---|
| 2283 |
|
---|
| 2284 | /* move the existing path plus the zero byte forward, to make room for
|
---|
| 2285 | the host-name part */
|
---|
| 2286 | memmove(path + hostlen + 1, path, pathlen + 1);
|
---|
| 2287 |
|
---|
| 2288 | /* now copy the trailing host part in front of the existing path */
|
---|
| 2289 | memcpy(path + 1, query, hostlen);
|
---|
| 2290 |
|
---|
| 2291 | path[0]='/'; /* prepend the missing slash */
|
---|
| 2292 | rebuild_url = TRUE;
|
---|
| 2293 |
|
---|
| 2294 | *query = 0; /* now cut off the hostname at the ? */
|
---|
| 2295 | }
|
---|
| 2296 | else if(!path[0]) {
|
---|
| 2297 | /* if there's no path set, use a single slash */
|
---|
| 2298 | strcpy(path, "/");
|
---|
| 2299 | rebuild_url = TRUE;
|
---|
| 2300 | }
|
---|
| 2301 |
|
---|
| 2302 | /* If the URL is malformatted (missing a '/' after hostname before path) we
|
---|
| 2303 | * insert a slash here. The only letters except '/' that can start a path is
|
---|
| 2304 | * '?' and '#' - as controlled by the two sscanf() patterns above.
|
---|
| 2305 | */
|
---|
| 2306 | if(path[0] != '/') {
|
---|
| 2307 | /* We need this function to deal with overlapping memory areas. We know
|
---|
| 2308 | that the memory area 'path' points to is 'urllen' bytes big and that
|
---|
| 2309 | is bigger than the path. Use +1 to move the zero byte too. */
|
---|
| 2310 | memmove(&path[1], path, strlen(path) + 1);
|
---|
| 2311 | path[0] = '/';
|
---|
| 2312 | rebuild_url = TRUE;
|
---|
| 2313 | }
|
---|
| 2314 | else if(!data->set.path_as_is) {
|
---|
| 2315 | /* sanitise paths and remove ../ and ./ sequences according to RFC3986 */
|
---|
| 2316 | char *newp = Curl_dedotdotify(path);
|
---|
| 2317 | if(!newp)
|
---|
| 2318 | return CURLE_OUT_OF_MEMORY;
|
---|
| 2319 |
|
---|
| 2320 | if(strcmp(newp, path)) {
|
---|
| 2321 | rebuild_url = TRUE;
|
---|
| 2322 | free(data->state.pathbuffer);
|
---|
| 2323 | data->state.pathbuffer = newp;
|
---|
| 2324 | data->state.path = newp;
|
---|
| 2325 | path = newp;
|
---|
| 2326 | }
|
---|
| 2327 | else
|
---|
| 2328 | free(newp);
|
---|
| 2329 | }
|
---|
| 2330 |
|
---|
| 2331 | /*
|
---|
| 2332 | * "rebuild_url" means that one or more URL components have been modified so
|
---|
| 2333 | * we need to generate an updated full version. We need the corrected URL
|
---|
| 2334 | * when communicating over HTTP proxy and we don't know at this point if
|
---|
| 2335 | * we're using a proxy or not.
|
---|
| 2336 | */
|
---|
| 2337 | if(rebuild_url) {
|
---|
| 2338 | char *reurl;
|
---|
| 2339 |
|
---|
| 2340 | size_t plen = strlen(path); /* new path, should be 1 byte longer than
|
---|
| 2341 | the original */
|
---|
| 2342 | size_t prefixlen = strlen(conn->host.name);
|
---|
| 2343 |
|
---|
| 2344 | if(!*prot_missing) {
|
---|
| 2345 | size_t protolen = strlen(protop);
|
---|
| 2346 |
|
---|
| 2347 | if(curl_strnequal(protop, data->change.url, protolen))
|
---|
| 2348 | prefixlen += protolen;
|
---|
| 2349 | else {
|
---|
| 2350 | failf(data, "<url> malformed");
|
---|
| 2351 | return CURLE_URL_MALFORMAT;
|
---|
| 2352 | }
|
---|
| 2353 |
|
---|
| 2354 | if(curl_strnequal("://", &data->change.url[protolen], 3))
|
---|
| 2355 | prefixlen += 3;
|
---|
| 2356 | /* only file: is allowed to omit one or both slashes */
|
---|
| 2357 | else if(curl_strnequal("file:", data->change.url, 5))
|
---|
| 2358 | prefixlen += 1 + (data->change.url[5] == '/');
|
---|
| 2359 | else {
|
---|
| 2360 | failf(data, "<url> malformed");
|
---|
| 2361 | return CURLE_URL_MALFORMAT;
|
---|
| 2362 | }
|
---|
| 2363 | }
|
---|
| 2364 |
|
---|
| 2365 | reurl = malloc(prefixlen + plen + 1);
|
---|
| 2366 | if(!reurl)
|
---|
| 2367 | return CURLE_OUT_OF_MEMORY;
|
---|
| 2368 |
|
---|
| 2369 | /* copy the prefix */
|
---|
| 2370 | memcpy(reurl, data->change.url, prefixlen);
|
---|
| 2371 |
|
---|
| 2372 | /* append the trailing piece + zerobyte */
|
---|
| 2373 | memcpy(&reurl[prefixlen], path, plen + 1);
|
---|
| 2374 |
|
---|
| 2375 | /* possible free the old one */
|
---|
| 2376 | if(data->change.url_alloc) {
|
---|
| 2377 | Curl_safefree(data->change.url);
|
---|
| 2378 | data->change.url_alloc = FALSE;
|
---|
| 2379 | }
|
---|
| 2380 |
|
---|
| 2381 | infof(data, "Rebuilt URL to: %s\n", reurl);
|
---|
| 2382 |
|
---|
| 2383 | data->change.url = reurl;
|
---|
| 2384 | data->change.url_alloc = TRUE; /* free this later */
|
---|
| 2385 | }
|
---|
| 2386 |
|
---|
| 2387 | result = findprotocol(data, conn, protop);
|
---|
| 2388 | if(result)
|
---|
| 2389 | return result;
|
---|
| 2390 |
|
---|
| 2391 | /*
|
---|
| 2392 | * Parse the login details from the URL and strip them out of
|
---|
| 2393 | * the host name
|
---|
| 2394 | */
|
---|
| 2395 | result = parse_url_login(data, conn, userp, passwdp, optionsp);
|
---|
| 2396 | if(result)
|
---|
| 2397 | return result;
|
---|
| 2398 |
|
---|
| 2399 | if(conn->host.name[0] == '[') {
|
---|
| 2400 | /* This looks like an IPv6 address literal. See if there is an address
|
---|
| 2401 | scope if there is no location header */
|
---|
| 2402 | char *percent = strchr(conn->host.name, '%');
|
---|
| 2403 | if(percent) {
|
---|
| 2404 | unsigned int identifier_offset = 3;
|
---|
| 2405 | char *endp;
|
---|
| 2406 | unsigned long scope;
|
---|
| 2407 | if(strncmp("%25", percent, 3) != 0) {
|
---|
| 2408 | infof(data,
|
---|
| 2409 | "Please URL encode %% as %%25, see RFC 6874.\n");
|
---|
| 2410 | identifier_offset = 1;
|
---|
| 2411 | }
|
---|
| 2412 | scope = strtoul(percent + identifier_offset, &endp, 10);
|
---|
| 2413 | if(*endp == ']') {
|
---|
| 2414 | /* The address scope was well formed. Knock it out of the
|
---|
| 2415 | hostname. */
|
---|
| 2416 | memmove(percent, endp, strlen(endp) + 1);
|
---|
| 2417 | conn->scope_id = (unsigned int)scope;
|
---|
| 2418 | }
|
---|
| 2419 | else {
|
---|
| 2420 | /* Zone identifier is not numeric */
|
---|
| 2421 | #if defined(HAVE_NET_IF_H) && defined(IFNAMSIZ) && defined(HAVE_IF_NAMETOINDEX)
|
---|
| 2422 | char ifname[IFNAMSIZ + 2];
|
---|
| 2423 | char *square_bracket;
|
---|
| 2424 | unsigned int scopeidx = 0;
|
---|
| 2425 | strncpy(ifname, percent + identifier_offset, IFNAMSIZ + 2);
|
---|
| 2426 | /* Ensure nullbyte termination */
|
---|
| 2427 | ifname[IFNAMSIZ + 1] = '\0';
|
---|
| 2428 | square_bracket = strchr(ifname, ']');
|
---|
| 2429 | if(square_bracket) {
|
---|
| 2430 | /* Remove ']' */
|
---|
| 2431 | *square_bracket = '\0';
|
---|
| 2432 | scopeidx = if_nametoindex(ifname);
|
---|
| 2433 | if(scopeidx == 0) {
|
---|
| 2434 | infof(data, "Invalid network interface: %s; %s\n", ifname,
|
---|
| 2435 | strerror(errno));
|
---|
| 2436 | }
|
---|
| 2437 | }
|
---|
| 2438 | if(scopeidx > 0) {
|
---|
| 2439 | char *p = percent + identifier_offset + strlen(ifname);
|
---|
| 2440 |
|
---|
| 2441 | /* Remove zone identifier from hostname */
|
---|
| 2442 | memmove(percent, p, strlen(p) + 1);
|
---|
| 2443 | conn->scope_id = scopeidx;
|
---|
| 2444 | }
|
---|
| 2445 | else
|
---|
| 2446 | #endif /* HAVE_NET_IF_H && IFNAMSIZ */
|
---|
| 2447 | infof(data, "Invalid IPv6 address format\n");
|
---|
| 2448 | }
|
---|
| 2449 | }
|
---|
| 2450 | }
|
---|
| 2451 |
|
---|
| 2452 | if(data->set.scope_id)
|
---|
| 2453 | /* Override any scope that was set above. */
|
---|
| 2454 | conn->scope_id = data->set.scope_id;
|
---|
| 2455 |
|
---|
| 2456 | /* Remove the fragment part of the path. Per RFC 2396, this is always the
|
---|
| 2457 | last part of the URI. We are looking for the first '#' so that we deal
|
---|
| 2458 | gracefully with non conformant URI such as http://example.com#foo#bar. */
|
---|
| 2459 | fragment = strchr(path, '#');
|
---|
| 2460 | if(fragment) {
|
---|
| 2461 | *fragment = 0;
|
---|
| 2462 |
|
---|
| 2463 | /* we know the path part ended with a fragment, so we know the full URL
|
---|
| 2464 | string does too and we need to cut it off from there so it isn't used
|
---|
| 2465 | over proxy */
|
---|
| 2466 | fragment = strchr(data->change.url, '#');
|
---|
| 2467 | if(fragment)
|
---|
| 2468 | *fragment = 0;
|
---|
| 2469 | }
|
---|
| 2470 |
|
---|
| 2471 | /*
|
---|
| 2472 | * So if the URL was A://B/C#D,
|
---|
| 2473 | * protop is A
|
---|
| 2474 | * conn->host.name is B
|
---|
| 2475 | * data->state.path is /C
|
---|
| 2476 | */
|
---|
| 2477 | return CURLE_OK;
|
---|
| 2478 | }
|
---|
| 2479 |
|
---|
| 2480 | /*
|
---|
| 2481 | * If we're doing a resumed transfer, we need to setup our stuff
|
---|
| 2482 | * properly.
|
---|
| 2483 | */
|
---|
| 2484 | static CURLcode setup_range(struct Curl_easy *data)
|
---|
| 2485 | {
|
---|
| 2486 | struct UrlState *s = &data->state;
|
---|
| 2487 | s->resume_from = data->set.set_resume_from;
|
---|
| 2488 | if(s->resume_from || data->set.str[STRING_SET_RANGE]) {
|
---|
| 2489 | if(s->rangestringalloc)
|
---|
| 2490 | free(s->range);
|
---|
| 2491 |
|
---|
| 2492 | if(s->resume_from)
|
---|
| 2493 | s->range = aprintf("%" CURL_FORMAT_CURL_OFF_TU "-", s->resume_from);
|
---|
| 2494 | else
|
---|
| 2495 | s->range = strdup(data->set.str[STRING_SET_RANGE]);
|
---|
| 2496 |
|
---|
| 2497 | s->rangestringalloc = (s->range) ? TRUE : FALSE;
|
---|
| 2498 |
|
---|
| 2499 | if(!s->range)
|
---|
| 2500 | return CURLE_OUT_OF_MEMORY;
|
---|
| 2501 |
|
---|
| 2502 | /* tell ourselves to fetch this range */
|
---|
| 2503 | s->use_range = TRUE; /* enable range download */
|
---|
| 2504 | }
|
---|
| 2505 | else
|
---|
| 2506 | s->use_range = FALSE; /* disable range download */
|
---|
| 2507 |
|
---|
| 2508 | return CURLE_OK;
|
---|
| 2509 | }
|
---|
| 2510 |
|
---|
| 2511 |
|
---|
| 2512 | /*
|
---|
| 2513 | * setup_connection_internals() -
|
---|
| 2514 | *
|
---|
| 2515 | * Setup connection internals specific to the requested protocol in the
|
---|
| 2516 | * Curl_easy. This is inited and setup before the connection is made but
|
---|
| 2517 | * is about the particular protocol that is to be used.
|
---|
| 2518 | *
|
---|
| 2519 | * This MUST get called after proxy magic has been figured out.
|
---|
| 2520 | */
|
---|
| 2521 | static CURLcode setup_connection_internals(struct connectdata *conn)
|
---|
| 2522 | {
|
---|
| 2523 | const struct Curl_handler * p;
|
---|
| 2524 | CURLcode result;
|
---|
| 2525 | struct Curl_easy *data = conn->data;
|
---|
| 2526 |
|
---|
| 2527 | /* in some case in the multi state-machine, we go back to the CONNECT state
|
---|
| 2528 | and then a second (or third or...) call to this function will be made
|
---|
| 2529 | without doing a DISCONNECT or DONE in between (since the connection is
|
---|
| 2530 | yet in place) and therefore this function needs to first make sure
|
---|
| 2531 | there's no lingering previous data allocated. */
|
---|
| 2532 | Curl_free_request_state(data);
|
---|
| 2533 |
|
---|
| 2534 | memset(&data->req, 0, sizeof(struct SingleRequest));
|
---|
| 2535 | data->req.maxdownload = -1;
|
---|
| 2536 |
|
---|
| 2537 | conn->socktype = SOCK_STREAM; /* most of them are TCP streams */
|
---|
| 2538 |
|
---|
| 2539 | /* Perform setup complement if some. */
|
---|
| 2540 | p = conn->handler;
|
---|
| 2541 |
|
---|
| 2542 | if(p->setup_connection) {
|
---|
| 2543 | result = (*p->setup_connection)(conn);
|
---|
| 2544 |
|
---|
| 2545 | if(result)
|
---|
| 2546 | return result;
|
---|
| 2547 |
|
---|
| 2548 | p = conn->handler; /* May have changed. */
|
---|
| 2549 | }
|
---|
| 2550 |
|
---|
| 2551 | if(conn->port < 0)
|
---|
| 2552 | /* we check for -1 here since if proxy was detected already, this
|
---|
| 2553 | was very likely already set to the proxy port */
|
---|
| 2554 | conn->port = p->defport;
|
---|
| 2555 |
|
---|
| 2556 | return CURLE_OK;
|
---|
| 2557 | }
|
---|
| 2558 |
|
---|
| 2559 | /*
|
---|
| 2560 | * Curl_free_request_state() should free temp data that was allocated in the
|
---|
| 2561 | * Curl_easy for this single request.
|
---|
| 2562 | */
|
---|
| 2563 |
|
---|
| 2564 | void Curl_free_request_state(struct Curl_easy *data)
|
---|
| 2565 | {
|
---|
| 2566 | Curl_safefree(data->req.protop);
|
---|
| 2567 | Curl_safefree(data->req.newurl);
|
---|
| 2568 | }
|
---|
| 2569 |
|
---|
| 2570 |
|
---|
| 2571 | #ifndef CURL_DISABLE_PROXY
|
---|
| 2572 | /****************************************************************
|
---|
| 2573 | * Checks if the host is in the noproxy list. returns true if it matches
|
---|
| 2574 | * and therefore the proxy should NOT be used.
|
---|
| 2575 | ****************************************************************/
|
---|
| 2576 | static bool check_noproxy(const char *name, const char *no_proxy)
|
---|
| 2577 | {
|
---|
| 2578 | /* no_proxy=domain1.dom,host.domain2.dom
|
---|
| 2579 | * (a comma-separated list of hosts which should
|
---|
| 2580 | * not be proxied, or an asterisk to override
|
---|
| 2581 | * all proxy variables)
|
---|
| 2582 | */
|
---|
| 2583 | size_t tok_start;
|
---|
| 2584 | size_t tok_end;
|
---|
| 2585 | const char *separator = ", ";
|
---|
| 2586 | size_t no_proxy_len;
|
---|
| 2587 | size_t namelen;
|
---|
| 2588 | char *endptr;
|
---|
| 2589 |
|
---|
| 2590 | if(no_proxy && no_proxy[0]) {
|
---|
| 2591 | if(strcasecompare("*", no_proxy)) {
|
---|
| 2592 | return TRUE;
|
---|
| 2593 | }
|
---|
| 2594 |
|
---|
| 2595 | /* NO_PROXY was specified and it wasn't just an asterisk */
|
---|
| 2596 |
|
---|
| 2597 | no_proxy_len = strlen(no_proxy);
|
---|
| 2598 | endptr = strchr(name, ':');
|
---|
| 2599 | if(endptr)
|
---|
| 2600 | namelen = endptr - name;
|
---|
| 2601 | else
|
---|
| 2602 | namelen = strlen(name);
|
---|
| 2603 |
|
---|
| 2604 | for(tok_start = 0; tok_start < no_proxy_len; tok_start = tok_end + 1) {
|
---|
| 2605 | while(tok_start < no_proxy_len &&
|
---|
| 2606 | strchr(separator, no_proxy[tok_start]) != NULL) {
|
---|
| 2607 | /* Look for the beginning of the token. */
|
---|
| 2608 | ++tok_start;
|
---|
| 2609 | }
|
---|
| 2610 |
|
---|
| 2611 | if(tok_start == no_proxy_len)
|
---|
| 2612 | break; /* It was all trailing separator chars, no more tokens. */
|
---|
| 2613 |
|
---|
| 2614 | for(tok_end = tok_start; tok_end < no_proxy_len &&
|
---|
| 2615 | strchr(separator, no_proxy[tok_end]) == NULL; ++tok_end)
|
---|
| 2616 | /* Look for the end of the token. */
|
---|
| 2617 | ;
|
---|
| 2618 |
|
---|
| 2619 | /* To match previous behaviour, where it was necessary to specify
|
---|
| 2620 | * ".local.com" to prevent matching "notlocal.com", we will leave
|
---|
| 2621 | * the '.' off.
|
---|
| 2622 | */
|
---|
| 2623 | if(no_proxy[tok_start] == '.')
|
---|
| 2624 | ++tok_start;
|
---|
| 2625 |
|
---|
| 2626 | if((tok_end - tok_start) <= namelen) {
|
---|
| 2627 | /* Match the last part of the name to the domain we are checking. */
|
---|
| 2628 | const char *checkn = name + namelen - (tok_end - tok_start);
|
---|
| 2629 | if(strncasecompare(no_proxy + tok_start, checkn,
|
---|
| 2630 | tok_end - tok_start)) {
|
---|
| 2631 | if((tok_end - tok_start) == namelen || *(checkn - 1) == '.') {
|
---|
| 2632 | /* We either have an exact match, or the previous character is a .
|
---|
| 2633 | * so it is within the same domain, so no proxy for this host.
|
---|
| 2634 | */
|
---|
| 2635 | return TRUE;
|
---|
| 2636 | }
|
---|
| 2637 | }
|
---|
| 2638 | } /* if((tok_end - tok_start) <= namelen) */
|
---|
| 2639 | } /* for(tok_start = 0; tok_start < no_proxy_len;
|
---|
| 2640 | tok_start = tok_end + 1) */
|
---|
| 2641 | } /* NO_PROXY was specified and it wasn't just an asterisk */
|
---|
| 2642 |
|
---|
| 2643 | return FALSE;
|
---|
| 2644 | }
|
---|
| 2645 |
|
---|
| 2646 | #ifndef CURL_DISABLE_HTTP
|
---|
| 2647 | /****************************************************************
|
---|
| 2648 | * Detect what (if any) proxy to use. Remember that this selects a host
|
---|
| 2649 | * name and is not limited to HTTP proxies only.
|
---|
| 2650 | * The returned pointer must be freed by the caller (unless NULL)
|
---|
| 2651 | ****************************************************************/
|
---|
| 2652 | static char *detect_proxy(struct connectdata *conn)
|
---|
| 2653 | {
|
---|
| 2654 | char *proxy = NULL;
|
---|
| 2655 |
|
---|
| 2656 | /* If proxy was not specified, we check for default proxy environment
|
---|
| 2657 | * variables, to enable i.e Lynx compliance:
|
---|
| 2658 | *
|
---|
| 2659 | * http_proxy=http://some.server.dom:port/
|
---|
| 2660 | * https_proxy=http://some.server.dom:port/
|
---|
| 2661 | * ftp_proxy=http://some.server.dom:port/
|
---|
| 2662 | * no_proxy=domain1.dom,host.domain2.dom
|
---|
| 2663 | * (a comma-separated list of hosts which should
|
---|
| 2664 | * not be proxied, or an asterisk to override
|
---|
| 2665 | * all proxy variables)
|
---|
| 2666 | * all_proxy=http://some.server.dom:port/
|
---|
| 2667 | * (seems to exist for the CERN www lib. Probably
|
---|
| 2668 | * the first to check for.)
|
---|
| 2669 | *
|
---|
| 2670 | * For compatibility, the all-uppercase versions of these variables are
|
---|
| 2671 | * checked if the lowercase versions don't exist.
|
---|
| 2672 | */
|
---|
| 2673 | char proxy_env[128];
|
---|
| 2674 | const char *protop = conn->handler->scheme;
|
---|
| 2675 | char *envp = proxy_env;
|
---|
| 2676 | char *prox;
|
---|
| 2677 |
|
---|
| 2678 | /* Now, build <protocol>_proxy and check for such a one to use */
|
---|
| 2679 | while(*protop)
|
---|
| 2680 | *envp++ = (char)tolower((int)*protop++);
|
---|
| 2681 |
|
---|
| 2682 | /* append _proxy */
|
---|
| 2683 | strcpy(envp, "_proxy");
|
---|
| 2684 |
|
---|
| 2685 | /* read the protocol proxy: */
|
---|
| 2686 | prox = curl_getenv(proxy_env);
|
---|
| 2687 |
|
---|
| 2688 | /*
|
---|
| 2689 | * We don't try the uppercase version of HTTP_PROXY because of
|
---|
| 2690 | * security reasons:
|
---|
| 2691 | *
|
---|
| 2692 | * When curl is used in a webserver application
|
---|
| 2693 | * environment (cgi or php), this environment variable can
|
---|
| 2694 | * be controlled by the web server user by setting the
|
---|
| 2695 | * http header 'Proxy:' to some value.
|
---|
| 2696 | *
|
---|
| 2697 | * This can cause 'internal' http/ftp requests to be
|
---|
| 2698 | * arbitrarily redirected by any external attacker.
|
---|
| 2699 | */
|
---|
| 2700 | if(!prox && !strcasecompare("http_proxy", proxy_env)) {
|
---|
| 2701 | /* There was no lowercase variable, try the uppercase version: */
|
---|
| 2702 | Curl_strntoupper(proxy_env, proxy_env, sizeof(proxy_env));
|
---|
| 2703 | prox = curl_getenv(proxy_env);
|
---|
| 2704 | }
|
---|
| 2705 |
|
---|
| 2706 | if(prox)
|
---|
| 2707 | proxy = prox; /* use this */
|
---|
| 2708 | else {
|
---|
| 2709 | proxy = curl_getenv("all_proxy"); /* default proxy to use */
|
---|
| 2710 | if(!proxy)
|
---|
| 2711 | proxy = curl_getenv("ALL_PROXY");
|
---|
| 2712 | }
|
---|
| 2713 |
|
---|
| 2714 | return proxy;
|
---|
| 2715 | }
|
---|
| 2716 | #endif /* CURL_DISABLE_HTTP */
|
---|
| 2717 |
|
---|
| 2718 | /*
|
---|
| 2719 | * If this is supposed to use a proxy, we need to figure out the proxy
|
---|
| 2720 | * host name, so that we can re-use an existing connection
|
---|
| 2721 | * that may exist registered to the same proxy host.
|
---|
| 2722 | */
|
---|
| 2723 | static CURLcode parse_proxy(struct Curl_easy *data,
|
---|
| 2724 | struct connectdata *conn, char *proxy,
|
---|
| 2725 | curl_proxytype proxytype)
|
---|
| 2726 | {
|
---|
| 2727 | char *prox_portno;
|
---|
| 2728 | char *endofprot;
|
---|
| 2729 |
|
---|
| 2730 | /* We use 'proxyptr' to point to the proxy name from now on... */
|
---|
| 2731 | char *proxyptr;
|
---|
| 2732 | char *portptr;
|
---|
| 2733 | char *atsign;
|
---|
| 2734 | long port = -1;
|
---|
| 2735 | char *proxyuser = NULL;
|
---|
| 2736 | char *proxypasswd = NULL;
|
---|
| 2737 | bool sockstype;
|
---|
| 2738 |
|
---|
| 2739 | /* We do the proxy host string parsing here. We want the host name and the
|
---|
| 2740 | * port name. Accept a protocol:// prefix
|
---|
| 2741 | */
|
---|
| 2742 |
|
---|
| 2743 | /* Parse the protocol part if present */
|
---|
| 2744 | endofprot = strstr(proxy, "://");
|
---|
| 2745 | if(endofprot) {
|
---|
| 2746 | proxyptr = endofprot + 3;
|
---|
| 2747 | if(checkprefix("https", proxy))
|
---|
| 2748 | proxytype = CURLPROXY_HTTPS;
|
---|
| 2749 | else if(checkprefix("socks5h", proxy))
|
---|
| 2750 | proxytype = CURLPROXY_SOCKS5_HOSTNAME;
|
---|
| 2751 | else if(checkprefix("socks5", proxy))
|
---|
| 2752 | proxytype = CURLPROXY_SOCKS5;
|
---|
| 2753 | else if(checkprefix("socks4a", proxy))
|
---|
| 2754 | proxytype = CURLPROXY_SOCKS4A;
|
---|
| 2755 | else if(checkprefix("socks4", proxy) || checkprefix("socks", proxy))
|
---|
| 2756 | proxytype = CURLPROXY_SOCKS4;
|
---|
| 2757 | else if(checkprefix("http:", proxy))
|
---|
| 2758 | ; /* leave it as HTTP or HTTP/1.0 */
|
---|
| 2759 | else {
|
---|
| 2760 | /* Any other xxx:// reject! */
|
---|
| 2761 | failf(data, "Unsupported proxy scheme for \'%s\'", proxy);
|
---|
| 2762 | return CURLE_COULDNT_CONNECT;
|
---|
| 2763 | }
|
---|
| 2764 | }
|
---|
| 2765 | else
|
---|
| 2766 | proxyptr = proxy; /* No xxx:// head: It's a HTTP proxy */
|
---|
| 2767 |
|
---|
| 2768 | #ifdef USE_SSL
|
---|
| 2769 | if(!Curl_ssl->support_https_proxy)
|
---|
| 2770 | #endif
|
---|
| 2771 | if(proxytype == CURLPROXY_HTTPS) {
|
---|
| 2772 | failf(data, "Unsupported proxy \'%s\', libcurl is built without the "
|
---|
| 2773 | "HTTPS-proxy support.", proxy);
|
---|
| 2774 | return CURLE_NOT_BUILT_IN;
|
---|
| 2775 | }
|
---|
| 2776 |
|
---|
| 2777 | sockstype = proxytype == CURLPROXY_SOCKS5_HOSTNAME ||
|
---|
| 2778 | proxytype == CURLPROXY_SOCKS5 ||
|
---|
| 2779 | proxytype == CURLPROXY_SOCKS4A ||
|
---|
| 2780 | proxytype == CURLPROXY_SOCKS4;
|
---|
| 2781 |
|
---|
| 2782 | /* Is there a username and password given in this proxy url? */
|
---|
| 2783 | atsign = strchr(proxyptr, '@');
|
---|
| 2784 | if(atsign) {
|
---|
| 2785 | CURLcode result =
|
---|
| 2786 | Curl_parse_login_details(proxyptr, atsign - proxyptr,
|
---|
| 2787 | &proxyuser, &proxypasswd, NULL);
|
---|
| 2788 | if(result)
|
---|
| 2789 | return result;
|
---|
| 2790 | proxyptr = atsign + 1;
|
---|
| 2791 | }
|
---|
| 2792 |
|
---|
| 2793 | /* start scanning for port number at this point */
|
---|
| 2794 | portptr = proxyptr;
|
---|
| 2795 |
|
---|
| 2796 | /* detect and extract RFC6874-style IPv6-addresses */
|
---|
| 2797 | if(*proxyptr == '[') {
|
---|
| 2798 | char *ptr = ++proxyptr; /* advance beyond the initial bracket */
|
---|
| 2799 | while(*ptr && (ISXDIGIT(*ptr) || (*ptr == ':') || (*ptr == '.')))
|
---|
| 2800 | ptr++;
|
---|
| 2801 | if(*ptr == '%') {
|
---|
| 2802 | /* There might be a zone identifier */
|
---|
| 2803 | if(strncmp("%25", ptr, 3))
|
---|
| 2804 | infof(data, "Please URL encode %% as %%25, see RFC 6874.\n");
|
---|
| 2805 | ptr++;
|
---|
| 2806 | /* Allow unreserved characters as defined in RFC 3986 */
|
---|
| 2807 | while(*ptr && (ISALPHA(*ptr) || ISXDIGIT(*ptr) || (*ptr == '-') ||
|
---|
| 2808 | (*ptr == '.') || (*ptr == '_') || (*ptr == '~')))
|
---|
| 2809 | ptr++;
|
---|
| 2810 | }
|
---|
| 2811 | if(*ptr == ']')
|
---|
| 2812 | /* yeps, it ended nicely with a bracket as well */
|
---|
| 2813 | *ptr++ = 0;
|
---|
| 2814 | else
|
---|
| 2815 | infof(data, "Invalid IPv6 address format\n");
|
---|
| 2816 | portptr = ptr;
|
---|
| 2817 | /* Note that if this didn't end with a bracket, we still advanced the
|
---|
| 2818 | * proxyptr first, but I can't see anything wrong with that as no host
|
---|
| 2819 | * name nor a numeric can legally start with a bracket.
|
---|
| 2820 | */
|
---|
| 2821 | }
|
---|
| 2822 |
|
---|
| 2823 | /* Get port number off proxy.server.com:1080 */
|
---|
| 2824 | prox_portno = strchr(portptr, ':');
|
---|
| 2825 | if(prox_portno) {
|
---|
| 2826 | char *endp = NULL;
|
---|
| 2827 |
|
---|
| 2828 | *prox_portno = 0x0; /* cut off number from host name */
|
---|
| 2829 | prox_portno ++;
|
---|
| 2830 | /* now set the local port number */
|
---|
| 2831 | port = strtol(prox_portno, &endp, 10);
|
---|
| 2832 | if((endp && *endp && (*endp != '/') && (*endp != ' ')) ||
|
---|
| 2833 | (port < 0) || (port > 65535)) {
|
---|
| 2834 | /* meant to detect for example invalid IPv6 numerical addresses without
|
---|
| 2835 | brackets: "2a00:fac0:a000::7:13". Accept a trailing slash only
|
---|
| 2836 | because we then allow "URL style" with the number followed by a
|
---|
| 2837 | slash, used in curl test cases already. Space is also an acceptable
|
---|
| 2838 | terminating symbol. */
|
---|
| 2839 | infof(data, "No valid port number in proxy string (%s)\n",
|
---|
| 2840 | prox_portno);
|
---|
| 2841 | }
|
---|
| 2842 | else
|
---|
| 2843 | conn->port = port;
|
---|
| 2844 | }
|
---|
| 2845 | else {
|
---|
| 2846 | if(proxyptr[0]=='/') {
|
---|
| 2847 | /* If the first character in the proxy string is a slash, fail
|
---|
| 2848 | immediately. The following code will otherwise clear the string which
|
---|
| 2849 | will lead to code running as if no proxy was set! */
|
---|
| 2850 | Curl_safefree(proxyuser);
|
---|
| 2851 | Curl_safefree(proxypasswd);
|
---|
| 2852 | return CURLE_COULDNT_RESOLVE_PROXY;
|
---|
| 2853 | }
|
---|
| 2854 |
|
---|
| 2855 | /* without a port number after the host name, some people seem to use
|
---|
| 2856 | a slash so we strip everything from the first slash */
|
---|
| 2857 | atsign = strchr(proxyptr, '/');
|
---|
| 2858 | if(atsign)
|
---|
| 2859 | *atsign = '\0'; /* cut off path part from host name */
|
---|
| 2860 |
|
---|
| 2861 | if(data->set.proxyport)
|
---|
| 2862 | /* None given in the proxy string, then get the default one if it is
|
---|
| 2863 | given */
|
---|
| 2864 | port = data->set.proxyport;
|
---|
| 2865 | else {
|
---|
| 2866 | if(proxytype == CURLPROXY_HTTPS)
|
---|
| 2867 | port = CURL_DEFAULT_HTTPS_PROXY_PORT;
|
---|
| 2868 | else
|
---|
| 2869 | port = CURL_DEFAULT_PROXY_PORT;
|
---|
| 2870 | }
|
---|
| 2871 | }
|
---|
| 2872 |
|
---|
| 2873 | if(*proxyptr) {
|
---|
| 2874 | struct proxy_info *proxyinfo =
|
---|
| 2875 | sockstype ? &conn->socks_proxy : &conn->http_proxy;
|
---|
| 2876 | proxyinfo->proxytype = proxytype;
|
---|
| 2877 |
|
---|
| 2878 | if(proxyuser) {
|
---|
| 2879 | /* found user and password, rip them out. note that we are unescaping
|
---|
| 2880 | them, as there is otherwise no way to have a username or password
|
---|
| 2881 | with reserved characters like ':' in them. */
|
---|
| 2882 | Curl_safefree(proxyinfo->user);
|
---|
| 2883 | proxyinfo->user = curl_easy_unescape(data, proxyuser, 0, NULL);
|
---|
| 2884 | Curl_safefree(proxyuser);
|
---|
| 2885 |
|
---|
| 2886 | if(!proxyinfo->user) {
|
---|
| 2887 | Curl_safefree(proxypasswd);
|
---|
| 2888 | return CURLE_OUT_OF_MEMORY;
|
---|
| 2889 | }
|
---|
| 2890 |
|
---|
| 2891 | Curl_safefree(proxyinfo->passwd);
|
---|
| 2892 | if(proxypasswd && strlen(proxypasswd) < MAX_CURL_PASSWORD_LENGTH)
|
---|
| 2893 | proxyinfo->passwd = curl_easy_unescape(data, proxypasswd, 0, NULL);
|
---|
| 2894 | else
|
---|
| 2895 | proxyinfo->passwd = strdup("");
|
---|
| 2896 | Curl_safefree(proxypasswd);
|
---|
| 2897 |
|
---|
| 2898 | if(!proxyinfo->passwd)
|
---|
| 2899 | return CURLE_OUT_OF_MEMORY;
|
---|
| 2900 |
|
---|
| 2901 | conn->bits.proxy_user_passwd = TRUE; /* enable it */
|
---|
| 2902 | }
|
---|
| 2903 |
|
---|
| 2904 | if(port >= 0) {
|
---|
| 2905 | proxyinfo->port = port;
|
---|
| 2906 | if(conn->port < 0 || sockstype || !conn->socks_proxy.host.rawalloc)
|
---|
| 2907 | conn->port = port;
|
---|
| 2908 | }
|
---|
| 2909 |
|
---|
| 2910 | /* now, clone the cleaned proxy host name */
|
---|
| 2911 | Curl_safefree(proxyinfo->host.rawalloc);
|
---|
| 2912 | proxyinfo->host.rawalloc = strdup(proxyptr);
|
---|
| 2913 | proxyinfo->host.name = proxyinfo->host.rawalloc;
|
---|
| 2914 |
|
---|
| 2915 | if(!proxyinfo->host.rawalloc)
|
---|
| 2916 | return CURLE_OUT_OF_MEMORY;
|
---|
| 2917 | }
|
---|
| 2918 |
|
---|
| 2919 | Curl_safefree(proxyuser);
|
---|
| 2920 | Curl_safefree(proxypasswd);
|
---|
| 2921 |
|
---|
| 2922 | return CURLE_OK;
|
---|
| 2923 | }
|
---|
| 2924 |
|
---|
| 2925 | /*
|
---|
| 2926 | * Extract the user and password from the authentication string
|
---|
| 2927 | */
|
---|
| 2928 | static CURLcode parse_proxy_auth(struct Curl_easy *data,
|
---|
| 2929 | struct connectdata *conn)
|
---|
| 2930 | {
|
---|
| 2931 | char proxyuser[MAX_CURL_USER_LENGTH]="";
|
---|
| 2932 | char proxypasswd[MAX_CURL_PASSWORD_LENGTH]="";
|
---|
| 2933 | CURLcode result;
|
---|
| 2934 |
|
---|
| 2935 | if(data->set.str[STRING_PROXYUSERNAME] != NULL) {
|
---|
| 2936 | strncpy(proxyuser, data->set.str[STRING_PROXYUSERNAME],
|
---|
| 2937 | MAX_CURL_USER_LENGTH);
|
---|
| 2938 | proxyuser[MAX_CURL_USER_LENGTH-1] = '\0'; /*To be on safe side*/
|
---|
| 2939 | }
|
---|
| 2940 | if(data->set.str[STRING_PROXYPASSWORD] != NULL) {
|
---|
| 2941 | strncpy(proxypasswd, data->set.str[STRING_PROXYPASSWORD],
|
---|
| 2942 | MAX_CURL_PASSWORD_LENGTH);
|
---|
| 2943 | proxypasswd[MAX_CURL_PASSWORD_LENGTH-1] = '\0'; /*To be on safe side*/
|
---|
| 2944 | }
|
---|
| 2945 |
|
---|
| 2946 | result = Curl_urldecode(data, proxyuser, 0, &conn->http_proxy.user, NULL,
|
---|
| 2947 | FALSE);
|
---|
| 2948 | if(!result)
|
---|
| 2949 | result = Curl_urldecode(data, proxypasswd, 0, &conn->http_proxy.passwd,
|
---|
| 2950 | NULL, FALSE);
|
---|
| 2951 | return result;
|
---|
| 2952 | }
|
---|
| 2953 |
|
---|
| 2954 | /* create_conn helper to parse and init proxy values. to be called after unix
|
---|
| 2955 | socket init but before any proxy vars are evaluated. */
|
---|
| 2956 | static CURLcode create_conn_helper_init_proxy(struct connectdata *conn)
|
---|
| 2957 | {
|
---|
| 2958 | char *proxy = NULL;
|
---|
| 2959 | char *socksproxy = NULL;
|
---|
| 2960 | char *no_proxy = NULL;
|
---|
| 2961 | CURLcode result = CURLE_OK;
|
---|
| 2962 | struct Curl_easy *data = conn->data;
|
---|
| 2963 |
|
---|
| 2964 | /*************************************************************
|
---|
| 2965 | * Extract the user and password from the authentication string
|
---|
| 2966 | *************************************************************/
|
---|
| 2967 | if(conn->bits.proxy_user_passwd) {
|
---|
| 2968 | result = parse_proxy_auth(data, conn);
|
---|
| 2969 | if(result)
|
---|
| 2970 | goto out;
|
---|
| 2971 | }
|
---|
| 2972 |
|
---|
| 2973 | /*************************************************************
|
---|
| 2974 | * Detect what (if any) proxy to use
|
---|
| 2975 | *************************************************************/
|
---|
| 2976 | if(data->set.str[STRING_PROXY]) {
|
---|
| 2977 | proxy = strdup(data->set.str[STRING_PROXY]);
|
---|
| 2978 | /* if global proxy is set, this is it */
|
---|
| 2979 | if(NULL == proxy) {
|
---|
| 2980 | failf(data, "memory shortage");
|
---|
| 2981 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 2982 | goto out;
|
---|
| 2983 | }
|
---|
| 2984 | }
|
---|
| 2985 |
|
---|
| 2986 | if(data->set.str[STRING_PRE_PROXY]) {
|
---|
| 2987 | socksproxy = strdup(data->set.str[STRING_PRE_PROXY]);
|
---|
| 2988 | /* if global socks proxy is set, this is it */
|
---|
| 2989 | if(NULL == socksproxy) {
|
---|
| 2990 | failf(data, "memory shortage");
|
---|
| 2991 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 2992 | goto out;
|
---|
| 2993 | }
|
---|
| 2994 | }
|
---|
| 2995 |
|
---|
| 2996 | if(!data->set.str[STRING_NOPROXY]) {
|
---|
| 2997 | no_proxy = curl_getenv("no_proxy");
|
---|
| 2998 | if(!no_proxy)
|
---|
| 2999 | no_proxy = curl_getenv("NO_PROXY");
|
---|
| 3000 | }
|
---|
| 3001 |
|
---|
| 3002 | if(check_noproxy(conn->host.name, data->set.str[STRING_NOPROXY] ?
|
---|
| 3003 | data->set.str[STRING_NOPROXY] : no_proxy)) {
|
---|
| 3004 | Curl_safefree(proxy);
|
---|
| 3005 | Curl_safefree(socksproxy);
|
---|
| 3006 | }
|
---|
| 3007 | #ifndef CURL_DISABLE_HTTP
|
---|
| 3008 | else if(!proxy && !socksproxy)
|
---|
| 3009 | /* if the host is not in the noproxy list, detect proxy. */
|
---|
| 3010 | proxy = detect_proxy(conn);
|
---|
| 3011 | #endif /* CURL_DISABLE_HTTP */
|
---|
| 3012 |
|
---|
| 3013 | Curl_safefree(no_proxy);
|
---|
| 3014 |
|
---|
| 3015 | #ifdef USE_UNIX_SOCKETS
|
---|
| 3016 | /* For the time being do not mix proxy and unix domain sockets. See #1274 */
|
---|
| 3017 | if(proxy && conn->unix_domain_socket) {
|
---|
| 3018 | free(proxy);
|
---|
| 3019 | proxy = NULL;
|
---|
| 3020 | }
|
---|
| 3021 | #endif
|
---|
| 3022 |
|
---|
| 3023 | if(proxy && (!*proxy || (conn->handler->flags & PROTOPT_NONETWORK))) {
|
---|
| 3024 | free(proxy); /* Don't bother with an empty proxy string or if the
|
---|
| 3025 | protocol doesn't work with network */
|
---|
| 3026 | proxy = NULL;
|
---|
| 3027 | }
|
---|
| 3028 | if(socksproxy && (!*socksproxy ||
|
---|
| 3029 | (conn->handler->flags & PROTOPT_NONETWORK))) {
|
---|
| 3030 | free(socksproxy); /* Don't bother with an empty socks proxy string or if
|
---|
| 3031 | the protocol doesn't work with network */
|
---|
| 3032 | socksproxy = NULL;
|
---|
| 3033 | }
|
---|
| 3034 |
|
---|
| 3035 | /***********************************************************************
|
---|
| 3036 | * If this is supposed to use a proxy, we need to figure out the proxy host
|
---|
| 3037 | * name, proxy type and port number, so that we can re-use an existing
|
---|
| 3038 | * connection that may exist registered to the same proxy host.
|
---|
| 3039 | ***********************************************************************/
|
---|
| 3040 | if(proxy || socksproxy) {
|
---|
| 3041 | if(proxy) {
|
---|
| 3042 | result = parse_proxy(data, conn, proxy, conn->http_proxy.proxytype);
|
---|
| 3043 | Curl_safefree(proxy); /* parse_proxy copies the proxy string */
|
---|
| 3044 | if(result)
|
---|
| 3045 | goto out;
|
---|
| 3046 | }
|
---|
| 3047 |
|
---|
| 3048 | if(socksproxy) {
|
---|
| 3049 | result = parse_proxy(data, conn, socksproxy,
|
---|
| 3050 | conn->socks_proxy.proxytype);
|
---|
| 3051 | /* parse_proxy copies the socks proxy string */
|
---|
| 3052 | Curl_safefree(socksproxy);
|
---|
| 3053 | if(result)
|
---|
| 3054 | goto out;
|
---|
| 3055 | }
|
---|
| 3056 |
|
---|
| 3057 | if(conn->http_proxy.host.rawalloc) {
|
---|
| 3058 | #ifdef CURL_DISABLE_HTTP
|
---|
| 3059 | /* asking for a HTTP proxy is a bit funny when HTTP is disabled... */
|
---|
| 3060 | result = CURLE_UNSUPPORTED_PROTOCOL;
|
---|
| 3061 | goto out;
|
---|
| 3062 | #else
|
---|
| 3063 | /* force this connection's protocol to become HTTP if compatible */
|
---|
| 3064 | if(!(conn->handler->protocol & PROTO_FAMILY_HTTP)) {
|
---|
| 3065 | if((conn->handler->flags & PROTOPT_PROXY_AS_HTTP) &&
|
---|
| 3066 | !conn->bits.tunnel_proxy)
|
---|
| 3067 | conn->handler = &Curl_handler_http;
|
---|
| 3068 | else
|
---|
| 3069 | /* if not converting to HTTP over the proxy, enforce tunneling */
|
---|
| 3070 | conn->bits.tunnel_proxy = TRUE;
|
---|
| 3071 | }
|
---|
| 3072 | conn->bits.httpproxy = TRUE;
|
---|
| 3073 | #endif
|
---|
| 3074 | }
|
---|
| 3075 | else {
|
---|
| 3076 | conn->bits.httpproxy = FALSE; /* not a HTTP proxy */
|
---|
| 3077 | conn->bits.tunnel_proxy = FALSE; /* no tunneling if not HTTP */
|
---|
| 3078 | }
|
---|
| 3079 |
|
---|
| 3080 | if(conn->socks_proxy.host.rawalloc) {
|
---|
| 3081 | if(!conn->http_proxy.host.rawalloc) {
|
---|
| 3082 | /* once a socks proxy */
|
---|
| 3083 | if(!conn->socks_proxy.user) {
|
---|
| 3084 | conn->socks_proxy.user = conn->http_proxy.user;
|
---|
| 3085 | conn->http_proxy.user = NULL;
|
---|
| 3086 | Curl_safefree(conn->socks_proxy.passwd);
|
---|
| 3087 | conn->socks_proxy.passwd = conn->http_proxy.passwd;
|
---|
| 3088 | conn->http_proxy.passwd = NULL;
|
---|
| 3089 | }
|
---|
| 3090 | }
|
---|
| 3091 | conn->bits.socksproxy = TRUE;
|
---|
| 3092 | }
|
---|
| 3093 | else
|
---|
| 3094 | conn->bits.socksproxy = FALSE; /* not a socks proxy */
|
---|
| 3095 | }
|
---|
| 3096 | else {
|
---|
| 3097 | conn->bits.socksproxy = FALSE;
|
---|
| 3098 | conn->bits.httpproxy = FALSE;
|
---|
| 3099 | }
|
---|
| 3100 | conn->bits.proxy = conn->bits.httpproxy || conn->bits.socksproxy;
|
---|
| 3101 |
|
---|
| 3102 | if(!conn->bits.proxy) {
|
---|
| 3103 | /* we aren't using the proxy after all... */
|
---|
| 3104 | conn->bits.proxy = FALSE;
|
---|
| 3105 | conn->bits.httpproxy = FALSE;
|
---|
| 3106 | conn->bits.socksproxy = FALSE;
|
---|
| 3107 | conn->bits.proxy_user_passwd = FALSE;
|
---|
| 3108 | conn->bits.tunnel_proxy = FALSE;
|
---|
| 3109 | }
|
---|
| 3110 |
|
---|
| 3111 | out:
|
---|
| 3112 |
|
---|
| 3113 | free(socksproxy);
|
---|
| 3114 | free(proxy);
|
---|
| 3115 | return result;
|
---|
| 3116 | }
|
---|
| 3117 | #endif /* CURL_DISABLE_PROXY */
|
---|
| 3118 |
|
---|
| 3119 | /*
|
---|
| 3120 | * parse_url_login()
|
---|
| 3121 | *
|
---|
| 3122 | * Parse the login details (user name, password and options) from the URL and
|
---|
| 3123 | * strip them out of the host name
|
---|
| 3124 | *
|
---|
| 3125 | * Inputs: data->set.use_netrc (CURLOPT_NETRC)
|
---|
| 3126 | * conn->host.name
|
---|
| 3127 | *
|
---|
| 3128 | * Outputs: (almost :- all currently undefined)
|
---|
| 3129 | * conn->bits.user_passwd - non-zero if non-default passwords exist
|
---|
| 3130 | * user - non-zero length if defined
|
---|
| 3131 | * passwd - non-zero length if defined
|
---|
| 3132 | * options - non-zero length if defined
|
---|
| 3133 | * conn->host.name - remove user name and password
|
---|
| 3134 | */
|
---|
| 3135 | static CURLcode parse_url_login(struct Curl_easy *data,
|
---|
| 3136 | struct connectdata *conn,
|
---|
| 3137 | char **user, char **passwd, char **options)
|
---|
| 3138 | {
|
---|
| 3139 | CURLcode result = CURLE_OK;
|
---|
| 3140 | char *userp = NULL;
|
---|
| 3141 | char *passwdp = NULL;
|
---|
| 3142 | char *optionsp = NULL;
|
---|
| 3143 |
|
---|
| 3144 | /* At this point, we're hoping all the other special cases have
|
---|
| 3145 | * been taken care of, so conn->host.name is at most
|
---|
| 3146 | * [user[:password][;options]]@]hostname
|
---|
| 3147 | *
|
---|
| 3148 | * We need somewhere to put the embedded details, so do that first.
|
---|
| 3149 | */
|
---|
| 3150 |
|
---|
| 3151 | char *ptr = strchr(conn->host.name, '@');
|
---|
| 3152 | char *login = conn->host.name;
|
---|
| 3153 |
|
---|
| 3154 | DEBUGASSERT(!**user);
|
---|
| 3155 | DEBUGASSERT(!**passwd);
|
---|
| 3156 | DEBUGASSERT(!**options);
|
---|
| 3157 | DEBUGASSERT(conn->handler);
|
---|
| 3158 |
|
---|
| 3159 | if(!ptr)
|
---|
| 3160 | goto out;
|
---|
| 3161 |
|
---|
| 3162 | /* We will now try to extract the
|
---|
| 3163 | * possible login information in a string like:
|
---|
| 3164 | * ftp://user:password@ftp.my.site:8021/README */
|
---|
| 3165 | conn->host.name = ++ptr;
|
---|
| 3166 |
|
---|
| 3167 | /* So the hostname is sane. Only bother interpreting the
|
---|
| 3168 | * results if we could care. It could still be wasted
|
---|
| 3169 | * work because it might be overtaken by the programmatically
|
---|
| 3170 | * set user/passwd, but doing that first adds more cases here :-(
|
---|
| 3171 | */
|
---|
| 3172 |
|
---|
| 3173 | if(data->set.use_netrc == CURL_NETRC_REQUIRED)
|
---|
| 3174 | goto out;
|
---|
| 3175 |
|
---|
| 3176 | /* We could use the login information in the URL so extract it. Only parse
|
---|
| 3177 | options if the handler says we should. */
|
---|
| 3178 | result =
|
---|
| 3179 | Curl_parse_login_details(login, ptr - login - 1,
|
---|
| 3180 | &userp, &passwdp,
|
---|
| 3181 | (conn->handler->flags & PROTOPT_URLOPTIONS)?
|
---|
| 3182 | &optionsp:NULL);
|
---|
| 3183 | if(result)
|
---|
| 3184 | goto out;
|
---|
| 3185 |
|
---|
| 3186 | if(userp) {
|
---|
| 3187 | char *newname;
|
---|
| 3188 |
|
---|
| 3189 | /* We have a user in the URL */
|
---|
| 3190 | conn->bits.userpwd_in_url = TRUE;
|
---|
| 3191 | conn->bits.user_passwd = TRUE; /* enable user+password */
|
---|
| 3192 |
|
---|
| 3193 | /* Decode the user */
|
---|
| 3194 | result = Curl_urldecode(data, userp, 0, &newname, NULL, FALSE);
|
---|
| 3195 | if(result) {
|
---|
| 3196 | goto out;
|
---|
| 3197 | }
|
---|
| 3198 |
|
---|
| 3199 | free(*user);
|
---|
| 3200 | *user = newname;
|
---|
| 3201 | }
|
---|
| 3202 |
|
---|
| 3203 | if(passwdp) {
|
---|
| 3204 | /* We have a password in the URL so decode it */
|
---|
| 3205 | char *newpasswd;
|
---|
| 3206 | result = Curl_urldecode(data, passwdp, 0, &newpasswd, NULL, FALSE);
|
---|
| 3207 | if(result) {
|
---|
| 3208 | goto out;
|
---|
| 3209 | }
|
---|
| 3210 |
|
---|
| 3211 | free(*passwd);
|
---|
| 3212 | *passwd = newpasswd;
|
---|
| 3213 | }
|
---|
| 3214 |
|
---|
| 3215 | if(optionsp) {
|
---|
| 3216 | /* We have an options list in the URL so decode it */
|
---|
| 3217 | char *newoptions;
|
---|
| 3218 | result = Curl_urldecode(data, optionsp, 0, &newoptions, NULL, FALSE);
|
---|
| 3219 | if(result) {
|
---|
| 3220 | goto out;
|
---|
| 3221 | }
|
---|
| 3222 |
|
---|
| 3223 | free(*options);
|
---|
| 3224 | *options = newoptions;
|
---|
| 3225 | }
|
---|
| 3226 |
|
---|
| 3227 |
|
---|
| 3228 | out:
|
---|
| 3229 |
|
---|
| 3230 | free(userp);
|
---|
| 3231 | free(passwdp);
|
---|
| 3232 | free(optionsp);
|
---|
| 3233 |
|
---|
| 3234 | return result;
|
---|
| 3235 | }
|
---|
| 3236 |
|
---|
| 3237 | /*
|
---|
| 3238 | * Curl_parse_login_details()
|
---|
| 3239 | *
|
---|
| 3240 | * This is used to parse a login string for user name, password and options in
|
---|
| 3241 | * the following formats:
|
---|
| 3242 | *
|
---|
| 3243 | * user
|
---|
| 3244 | * user:password
|
---|
| 3245 | * user:password;options
|
---|
| 3246 | * user;options
|
---|
| 3247 | * user;options:password
|
---|
| 3248 | * :password
|
---|
| 3249 | * :password;options
|
---|
| 3250 | * ;options
|
---|
| 3251 | * ;options:password
|
---|
| 3252 | *
|
---|
| 3253 | * Parameters:
|
---|
| 3254 | *
|
---|
| 3255 | * login [in] - The login string.
|
---|
| 3256 | * len [in] - The length of the login string.
|
---|
| 3257 | * userp [in/out] - The address where a pointer to newly allocated memory
|
---|
| 3258 | * holding the user will be stored upon completion.
|
---|
| 3259 | * passdwp [in/out] - The address where a pointer to newly allocated memory
|
---|
| 3260 | * holding the password will be stored upon completion.
|
---|
| 3261 | * optionsp [in/out] - The address where a pointer to newly allocated memory
|
---|
| 3262 | * holding the options will be stored upon completion.
|
---|
| 3263 | *
|
---|
| 3264 | * Returns CURLE_OK on success.
|
---|
| 3265 | */
|
---|
| 3266 | CURLcode Curl_parse_login_details(const char *login, const size_t len,
|
---|
| 3267 | char **userp, char **passwdp,
|
---|
| 3268 | char **optionsp)
|
---|
| 3269 | {
|
---|
| 3270 | CURLcode result = CURLE_OK;
|
---|
| 3271 | char *ubuf = NULL;
|
---|
| 3272 | char *pbuf = NULL;
|
---|
| 3273 | char *obuf = NULL;
|
---|
| 3274 | const char *psep = NULL;
|
---|
| 3275 | const char *osep = NULL;
|
---|
| 3276 | size_t ulen;
|
---|
| 3277 | size_t plen;
|
---|
| 3278 | size_t olen;
|
---|
| 3279 |
|
---|
| 3280 | /* Attempt to find the password separator */
|
---|
| 3281 | if(passwdp) {
|
---|
| 3282 | psep = strchr(login, ':');
|
---|
| 3283 |
|
---|
| 3284 | /* Within the constraint of the login string */
|
---|
| 3285 | if(psep >= login + len)
|
---|
| 3286 | psep = NULL;
|
---|
| 3287 | }
|
---|
| 3288 |
|
---|
| 3289 | /* Attempt to find the options separator */
|
---|
| 3290 | if(optionsp) {
|
---|
| 3291 | osep = strchr(login, ';');
|
---|
| 3292 |
|
---|
| 3293 | /* Within the constraint of the login string */
|
---|
| 3294 | if(osep >= login + len)
|
---|
| 3295 | osep = NULL;
|
---|
| 3296 | }
|
---|
| 3297 |
|
---|
| 3298 | /* Calculate the portion lengths */
|
---|
| 3299 | ulen = (psep ?
|
---|
| 3300 | (size_t)(osep && psep > osep ? osep - login : psep - login) :
|
---|
| 3301 | (osep ? (size_t)(osep - login) : len));
|
---|
| 3302 | plen = (psep ?
|
---|
| 3303 | (osep && osep > psep ? (size_t)(osep - psep) :
|
---|
| 3304 | (size_t)(login + len - psep)) - 1 : 0);
|
---|
| 3305 | olen = (osep ?
|
---|
| 3306 | (psep && psep > osep ? (size_t)(psep - osep) :
|
---|
| 3307 | (size_t)(login + len - osep)) - 1 : 0);
|
---|
| 3308 |
|
---|
| 3309 | /* Allocate the user portion buffer */
|
---|
| 3310 | if(userp && ulen) {
|
---|
| 3311 | ubuf = malloc(ulen + 1);
|
---|
| 3312 | if(!ubuf)
|
---|
| 3313 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 3314 | }
|
---|
| 3315 |
|
---|
| 3316 | /* Allocate the password portion buffer */
|
---|
| 3317 | if(!result && passwdp && plen) {
|
---|
| 3318 | pbuf = malloc(plen + 1);
|
---|
| 3319 | if(!pbuf) {
|
---|
| 3320 | free(ubuf);
|
---|
| 3321 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 3322 | }
|
---|
| 3323 | }
|
---|
| 3324 |
|
---|
| 3325 | /* Allocate the options portion buffer */
|
---|
| 3326 | if(!result && optionsp && olen) {
|
---|
| 3327 | obuf = malloc(olen + 1);
|
---|
| 3328 | if(!obuf) {
|
---|
| 3329 | free(pbuf);
|
---|
| 3330 | free(ubuf);
|
---|
| 3331 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 3332 | }
|
---|
| 3333 | }
|
---|
| 3334 |
|
---|
| 3335 | if(!result) {
|
---|
| 3336 | /* Store the user portion if necessary */
|
---|
| 3337 | if(ubuf) {
|
---|
| 3338 | memcpy(ubuf, login, ulen);
|
---|
| 3339 | ubuf[ulen] = '\0';
|
---|
| 3340 | Curl_safefree(*userp);
|
---|
| 3341 | *userp = ubuf;
|
---|
| 3342 | }
|
---|
| 3343 |
|
---|
| 3344 | /* Store the password portion if necessary */
|
---|
| 3345 | if(pbuf) {
|
---|
| 3346 | memcpy(pbuf, psep + 1, plen);
|
---|
| 3347 | pbuf[plen] = '\0';
|
---|
| 3348 | Curl_safefree(*passwdp);
|
---|
| 3349 | *passwdp = pbuf;
|
---|
| 3350 | }
|
---|
| 3351 |
|
---|
| 3352 | /* Store the options portion if necessary */
|
---|
| 3353 | if(obuf) {
|
---|
| 3354 | memcpy(obuf, osep + 1, olen);
|
---|
| 3355 | obuf[olen] = '\0';
|
---|
| 3356 | Curl_safefree(*optionsp);
|
---|
| 3357 | *optionsp = obuf;
|
---|
| 3358 | }
|
---|
| 3359 | }
|
---|
| 3360 |
|
---|
| 3361 | return result;
|
---|
| 3362 | }
|
---|
| 3363 |
|
---|
| 3364 | /*************************************************************
|
---|
| 3365 | * Figure out the remote port number and fix it in the URL
|
---|
| 3366 | *
|
---|
| 3367 | * No matter if we use a proxy or not, we have to figure out the remote
|
---|
| 3368 | * port number of various reasons.
|
---|
| 3369 | *
|
---|
| 3370 | * To be able to detect port number flawlessly, we must not confuse them
|
---|
| 3371 | * IPv6-specified addresses in the [0::1] style. (RFC2732)
|
---|
| 3372 | *
|
---|
| 3373 | * The conn->host.name is currently [user:passwd@]host[:port] where host
|
---|
| 3374 | * could be a hostname, IPv4 address or IPv6 address.
|
---|
| 3375 | *
|
---|
| 3376 | * The port number embedded in the URL is replaced, if necessary.
|
---|
| 3377 | *************************************************************/
|
---|
| 3378 | static CURLcode parse_remote_port(struct Curl_easy *data,
|
---|
| 3379 | struct connectdata *conn)
|
---|
| 3380 | {
|
---|
| 3381 | char *portptr;
|
---|
| 3382 | char endbracket;
|
---|
| 3383 |
|
---|
| 3384 | /* Note that at this point, the IPv6 address cannot contain any scope
|
---|
| 3385 | suffix as that has already been removed in the parseurlandfillconn()
|
---|
| 3386 | function */
|
---|
| 3387 | if((1 == sscanf(conn->host.name, "[%*45[0123456789abcdefABCDEF:.]%c",
|
---|
| 3388 | &endbracket)) &&
|
---|
| 3389 | (']' == endbracket)) {
|
---|
| 3390 | /* this is a RFC2732-style specified IP-address */
|
---|
| 3391 | conn->bits.ipv6_ip = TRUE;
|
---|
| 3392 |
|
---|
| 3393 | conn->host.name++; /* skip over the starting bracket */
|
---|
| 3394 | portptr = strchr(conn->host.name, ']');
|
---|
| 3395 | if(portptr) {
|
---|
| 3396 | *portptr++ = '\0'; /* zero terminate, killing the bracket */
|
---|
| 3397 | if(*portptr) {
|
---|
| 3398 | if (*portptr != ':') {
|
---|
| 3399 | failf(data, "IPv6 closing bracket followed by '%c'", *portptr);
|
---|
| 3400 | return CURLE_URL_MALFORMAT;
|
---|
| 3401 | }
|
---|
| 3402 | }
|
---|
| 3403 | else
|
---|
| 3404 | portptr = NULL; /* no port number available */
|
---|
| 3405 | }
|
---|
| 3406 | }
|
---|
| 3407 | else {
|
---|
| 3408 | #ifdef ENABLE_IPV6
|
---|
| 3409 | struct in6_addr in6;
|
---|
| 3410 | if(Curl_inet_pton(AF_INET6, conn->host.name, &in6) > 0) {
|
---|
| 3411 | /* This is a numerical IPv6 address, meaning this is a wrongly formatted
|
---|
| 3412 | URL */
|
---|
| 3413 | failf(data, "IPv6 numerical address used in URL without brackets");
|
---|
| 3414 | return CURLE_URL_MALFORMAT;
|
---|
| 3415 | }
|
---|
| 3416 | #endif
|
---|
| 3417 |
|
---|
| 3418 | portptr = strchr(conn->host.name, ':');
|
---|
| 3419 | }
|
---|
| 3420 |
|
---|
| 3421 | if(data->set.use_port && data->state.allow_port) {
|
---|
| 3422 | /* if set, we use this and ignore the port possibly given in the URL */
|
---|
| 3423 | conn->remote_port = (unsigned short)data->set.use_port;
|
---|
| 3424 | if(portptr)
|
---|
| 3425 | *portptr = '\0'; /* cut off the name there anyway - if there was a port
|
---|
| 3426 | number - since the port number is to be ignored! */
|
---|
| 3427 | if(conn->bits.httpproxy) {
|
---|
| 3428 | /* we need to create new URL with the new port number */
|
---|
| 3429 | char *url;
|
---|
| 3430 | char type[12]="";
|
---|
| 3431 |
|
---|
| 3432 | if(conn->bits.type_set)
|
---|
| 3433 | snprintf(type, sizeof(type), ";type=%c",
|
---|
| 3434 | data->set.prefer_ascii?'A':
|
---|
| 3435 | (data->set.ftp_list_only?'D':'I'));
|
---|
| 3436 |
|
---|
| 3437 | /*
|
---|
| 3438 | * This synthesized URL isn't always right--suffixes like ;type=A are
|
---|
| 3439 | * stripped off. It would be better to work directly from the original
|
---|
| 3440 | * URL and simply replace the port part of it.
|
---|
| 3441 | */
|
---|
| 3442 | url = aprintf("%s://%s%s%s:%hu%s%s%s", conn->given->scheme,
|
---|
| 3443 | conn->bits.ipv6_ip?"[":"", conn->host.name,
|
---|
| 3444 | conn->bits.ipv6_ip?"]":"", conn->remote_port,
|
---|
| 3445 | data->state.slash_removed?"/":"", data->state.path,
|
---|
| 3446 | type);
|
---|
| 3447 | if(!url)
|
---|
| 3448 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3449 |
|
---|
| 3450 | if(data->change.url_alloc) {
|
---|
| 3451 | Curl_safefree(data->change.url);
|
---|
| 3452 | data->change.url_alloc = FALSE;
|
---|
| 3453 | }
|
---|
| 3454 |
|
---|
| 3455 | data->change.url = url;
|
---|
| 3456 | data->change.url_alloc = TRUE;
|
---|
| 3457 | }
|
---|
| 3458 | }
|
---|
| 3459 | else if(portptr) {
|
---|
| 3460 | /* no CURLOPT_PORT given, extract the one from the URL */
|
---|
| 3461 |
|
---|
| 3462 | char *rest;
|
---|
| 3463 | long port;
|
---|
| 3464 |
|
---|
| 3465 | port = strtol(portptr + 1, &rest, 10); /* Port number must be decimal */
|
---|
| 3466 |
|
---|
| 3467 | if((port < 0) || (port > 0xffff)) {
|
---|
| 3468 | /* Single unix standard says port numbers are 16 bits long */
|
---|
| 3469 | failf(data, "Port number out of range");
|
---|
| 3470 | return CURLE_URL_MALFORMAT;
|
---|
| 3471 | }
|
---|
| 3472 |
|
---|
| 3473 | if(rest[0]) {
|
---|
| 3474 | failf(data, "Port number ended with '%c'", rest[0]);
|
---|
| 3475 | return CURLE_URL_MALFORMAT;
|
---|
| 3476 | }
|
---|
| 3477 |
|
---|
| 3478 | if(rest != &portptr[1]) {
|
---|
| 3479 | *portptr = '\0'; /* cut off the name there */
|
---|
| 3480 | conn->remote_port = curlx_ultous(port);
|
---|
| 3481 | }
|
---|
| 3482 | else {
|
---|
| 3483 | /* Browser behavior adaptation. If there's a colon with no digits after,
|
---|
| 3484 | just cut off the name there which makes us ignore the colon and just
|
---|
| 3485 | use the default port. Firefox and Chrome both do that. */
|
---|
| 3486 | *portptr = '\0';
|
---|
| 3487 | }
|
---|
| 3488 | }
|
---|
| 3489 |
|
---|
| 3490 | /* only if remote_port was not already parsed off the URL we use the
|
---|
| 3491 | default port number */
|
---|
| 3492 | if(conn->remote_port < 0)
|
---|
| 3493 | conn->remote_port = (unsigned short)conn->given->defport;
|
---|
| 3494 |
|
---|
| 3495 | return CURLE_OK;
|
---|
| 3496 | }
|
---|
| 3497 |
|
---|
| 3498 | /*
|
---|
| 3499 | * Override the login details from the URL with that in the CURLOPT_USERPWD
|
---|
| 3500 | * option or a .netrc file, if applicable.
|
---|
| 3501 | */
|
---|
| 3502 | static CURLcode override_login(struct Curl_easy *data,
|
---|
| 3503 | struct connectdata *conn,
|
---|
| 3504 | char **userp, char **passwdp, char **optionsp)
|
---|
| 3505 | {
|
---|
| 3506 | if(data->set.str[STRING_USERNAME]) {
|
---|
| 3507 | free(*userp);
|
---|
| 3508 | *userp = strdup(data->set.str[STRING_USERNAME]);
|
---|
| 3509 | if(!*userp)
|
---|
| 3510 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3511 | }
|
---|
| 3512 |
|
---|
| 3513 | if(data->set.str[STRING_PASSWORD]) {
|
---|
| 3514 | free(*passwdp);
|
---|
| 3515 | *passwdp = strdup(data->set.str[STRING_PASSWORD]);
|
---|
| 3516 | if(!*passwdp)
|
---|
| 3517 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3518 | }
|
---|
| 3519 |
|
---|
| 3520 | if(data->set.str[STRING_OPTIONS]) {
|
---|
| 3521 | free(*optionsp);
|
---|
| 3522 | *optionsp = strdup(data->set.str[STRING_OPTIONS]);
|
---|
| 3523 | if(!*optionsp)
|
---|
| 3524 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3525 | }
|
---|
| 3526 |
|
---|
| 3527 | conn->bits.netrc = FALSE;
|
---|
| 3528 | if(data->set.use_netrc != CURL_NETRC_IGNORED) {
|
---|
| 3529 | int ret = Curl_parsenetrc(conn->host.name,
|
---|
| 3530 | userp, passwdp,
|
---|
| 3531 | data->set.str[STRING_NETRC_FILE]);
|
---|
| 3532 | if(ret > 0) {
|
---|
| 3533 | infof(data, "Couldn't find host %s in the "
|
---|
| 3534 | DOT_CHAR "netrc file; using defaults\n",
|
---|
| 3535 | conn->host.name);
|
---|
| 3536 | }
|
---|
| 3537 | else if(ret < 0) {
|
---|
| 3538 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3539 | }
|
---|
| 3540 | else {
|
---|
| 3541 | /* set bits.netrc TRUE to remember that we got the name from a .netrc
|
---|
| 3542 | file, so that it is safe to use even if we followed a Location: to a
|
---|
| 3543 | different host or similar. */
|
---|
| 3544 | conn->bits.netrc = TRUE;
|
---|
| 3545 |
|
---|
| 3546 | conn->bits.user_passwd = TRUE; /* enable user+password */
|
---|
| 3547 | }
|
---|
| 3548 | }
|
---|
| 3549 |
|
---|
| 3550 | return CURLE_OK;
|
---|
| 3551 | }
|
---|
| 3552 |
|
---|
| 3553 | /*
|
---|
| 3554 | * Set the login details so they're available in the connection
|
---|
| 3555 | */
|
---|
| 3556 | static CURLcode set_login(struct connectdata *conn,
|
---|
| 3557 | const char *user, const char *passwd,
|
---|
| 3558 | const char *options)
|
---|
| 3559 | {
|
---|
| 3560 | CURLcode result = CURLE_OK;
|
---|
| 3561 |
|
---|
| 3562 | /* If our protocol needs a password and we have none, use the defaults */
|
---|
| 3563 | if((conn->handler->flags & PROTOPT_NEEDSPWD) && !conn->bits.user_passwd) {
|
---|
| 3564 | /* Store the default user */
|
---|
| 3565 | conn->user = strdup(CURL_DEFAULT_USER);
|
---|
| 3566 |
|
---|
| 3567 | /* Store the default password */
|
---|
| 3568 | if(conn->user)
|
---|
| 3569 | conn->passwd = strdup(CURL_DEFAULT_PASSWORD);
|
---|
| 3570 | else
|
---|
| 3571 | conn->passwd = NULL;
|
---|
| 3572 |
|
---|
| 3573 | /* This is the default password, so DON'T set conn->bits.user_passwd */
|
---|
| 3574 | }
|
---|
| 3575 | else {
|
---|
| 3576 | /* Store the user, zero-length if not set */
|
---|
| 3577 | conn->user = strdup(user);
|
---|
| 3578 |
|
---|
| 3579 | /* Store the password (only if user is present), zero-length if not set */
|
---|
| 3580 | if(conn->user)
|
---|
| 3581 | conn->passwd = strdup(passwd);
|
---|
| 3582 | else
|
---|
| 3583 | conn->passwd = NULL;
|
---|
| 3584 | }
|
---|
| 3585 |
|
---|
| 3586 | if(!conn->user || !conn->passwd)
|
---|
| 3587 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 3588 |
|
---|
| 3589 | /* Store the options, null if not set */
|
---|
| 3590 | if(!result && options[0]) {
|
---|
| 3591 | conn->options = strdup(options);
|
---|
| 3592 |
|
---|
| 3593 | if(!conn->options)
|
---|
| 3594 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 3595 | }
|
---|
| 3596 |
|
---|
| 3597 | return result;
|
---|
| 3598 | }
|
---|
| 3599 |
|
---|
| 3600 | /*
|
---|
| 3601 | * Parses a "host:port" string to connect to.
|
---|
| 3602 | * The hostname and the port may be empty; in this case, NULL is returned for
|
---|
| 3603 | * the hostname and -1 for the port.
|
---|
| 3604 | */
|
---|
| 3605 | static CURLcode parse_connect_to_host_port(struct Curl_easy *data,
|
---|
| 3606 | const char *host,
|
---|
| 3607 | char **hostname_result,
|
---|
| 3608 | int *port_result)
|
---|
| 3609 | {
|
---|
| 3610 | char *host_dup;
|
---|
| 3611 | char *hostptr;
|
---|
| 3612 | char *host_portno;
|
---|
| 3613 | char *portptr;
|
---|
| 3614 | int port = -1;
|
---|
| 3615 |
|
---|
| 3616 | #if defined(CURL_DISABLE_VERBOSE_STRINGS)
|
---|
| 3617 | (void) data;
|
---|
| 3618 | #endif
|
---|
| 3619 |
|
---|
| 3620 | *hostname_result = NULL;
|
---|
| 3621 | *port_result = -1;
|
---|
| 3622 |
|
---|
| 3623 | if(!host || !*host)
|
---|
| 3624 | return CURLE_OK;
|
---|
| 3625 |
|
---|
| 3626 | host_dup = strdup(host);
|
---|
| 3627 | if(!host_dup)
|
---|
| 3628 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3629 |
|
---|
| 3630 | hostptr = host_dup;
|
---|
| 3631 |
|
---|
| 3632 | /* start scanning for port number at this point */
|
---|
| 3633 | portptr = hostptr;
|
---|
| 3634 |
|
---|
| 3635 | /* detect and extract RFC6874-style IPv6-addresses */
|
---|
| 3636 | if(*hostptr == '[') {
|
---|
| 3637 | char *ptr = ++hostptr; /* advance beyond the initial bracket */
|
---|
| 3638 | while(*ptr && (ISXDIGIT(*ptr) || (*ptr == ':') || (*ptr == '.')))
|
---|
| 3639 | ptr++;
|
---|
| 3640 | if(*ptr == '%') {
|
---|
| 3641 | /* There might be a zone identifier */
|
---|
| 3642 | if(strncmp("%25", ptr, 3))
|
---|
| 3643 | infof(data, "Please URL encode %% as %%25, see RFC 6874.\n");
|
---|
| 3644 | ptr++;
|
---|
| 3645 | /* Allow unreserved characters as defined in RFC 3986 */
|
---|
| 3646 | while(*ptr && (ISALPHA(*ptr) || ISXDIGIT(*ptr) || (*ptr == '-') ||
|
---|
| 3647 | (*ptr == '.') || (*ptr == '_') || (*ptr == '~')))
|
---|
| 3648 | ptr++;
|
---|
| 3649 | }
|
---|
| 3650 | if(*ptr == ']')
|
---|
| 3651 | /* yeps, it ended nicely with a bracket as well */
|
---|
| 3652 | *ptr++ = '\0';
|
---|
| 3653 | else
|
---|
| 3654 | infof(data, "Invalid IPv6 address format\n");
|
---|
| 3655 | portptr = ptr;
|
---|
| 3656 | /* Note that if this didn't end with a bracket, we still advanced the
|
---|
| 3657 | * hostptr first, but I can't see anything wrong with that as no host
|
---|
| 3658 | * name nor a numeric can legally start with a bracket.
|
---|
| 3659 | */
|
---|
| 3660 | }
|
---|
| 3661 |
|
---|
| 3662 | /* Get port number off server.com:1080 */
|
---|
| 3663 | host_portno = strchr(portptr, ':');
|
---|
| 3664 | if(host_portno) {
|
---|
| 3665 | char *endp = NULL;
|
---|
| 3666 | *host_portno = '\0'; /* cut off number from host name */
|
---|
| 3667 | host_portno++;
|
---|
| 3668 | if(*host_portno) {
|
---|
| 3669 | long portparse = strtol(host_portno, &endp, 10);
|
---|
| 3670 | if((endp && *endp) || (portparse < 0) || (portparse > 65535)) {
|
---|
| 3671 | infof(data, "No valid port number in connect to host string (%s)\n",
|
---|
| 3672 | host_portno);
|
---|
| 3673 | hostptr = NULL;
|
---|
| 3674 | port = -1;
|
---|
| 3675 | }
|
---|
| 3676 | else
|
---|
| 3677 | port = (int)portparse; /* we know it will fit */
|
---|
| 3678 | }
|
---|
| 3679 | }
|
---|
| 3680 |
|
---|
| 3681 | /* now, clone the cleaned host name */
|
---|
| 3682 | if(hostptr) {
|
---|
| 3683 | *hostname_result = strdup(hostptr);
|
---|
| 3684 | if(!*hostname_result) {
|
---|
| 3685 | free(host_dup);
|
---|
| 3686 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3687 | }
|
---|
| 3688 | }
|
---|
| 3689 |
|
---|
| 3690 | *port_result = port;
|
---|
| 3691 |
|
---|
| 3692 | free(host_dup);
|
---|
| 3693 | return CURLE_OK;
|
---|
| 3694 | }
|
---|
| 3695 |
|
---|
| 3696 | /*
|
---|
| 3697 | * Parses one "connect to" string in the form:
|
---|
| 3698 | * "HOST:PORT:CONNECT-TO-HOST:CONNECT-TO-PORT".
|
---|
| 3699 | */
|
---|
| 3700 | static CURLcode parse_connect_to_string(struct Curl_easy *data,
|
---|
| 3701 | struct connectdata *conn,
|
---|
| 3702 | const char *conn_to_host,
|
---|
| 3703 | char **host_result,
|
---|
| 3704 | int *port_result)
|
---|
| 3705 | {
|
---|
| 3706 | CURLcode result = CURLE_OK;
|
---|
| 3707 | const char *ptr = conn_to_host;
|
---|
| 3708 | int host_match = FALSE;
|
---|
| 3709 | int port_match = FALSE;
|
---|
| 3710 |
|
---|
| 3711 | *host_result = NULL;
|
---|
| 3712 | *port_result = -1;
|
---|
| 3713 |
|
---|
| 3714 | if(*ptr == ':') {
|
---|
| 3715 | /* an empty hostname always matches */
|
---|
| 3716 | host_match = TRUE;
|
---|
| 3717 | ptr++;
|
---|
| 3718 | }
|
---|
| 3719 | else {
|
---|
| 3720 | /* check whether the URL's hostname matches */
|
---|
| 3721 | size_t hostname_to_match_len;
|
---|
| 3722 | char *hostname_to_match = aprintf("%s%s%s",
|
---|
| 3723 | conn->bits.ipv6_ip ? "[" : "",
|
---|
| 3724 | conn->host.name,
|
---|
| 3725 | conn->bits.ipv6_ip ? "]" : "");
|
---|
| 3726 | if(!hostname_to_match)
|
---|
| 3727 | return CURLE_OUT_OF_MEMORY;
|
---|
| 3728 | hostname_to_match_len = strlen(hostname_to_match);
|
---|
| 3729 | host_match = strncasecompare(ptr, hostname_to_match,
|
---|
| 3730 | hostname_to_match_len);
|
---|
| 3731 | free(hostname_to_match);
|
---|
| 3732 | ptr += hostname_to_match_len;
|
---|
| 3733 |
|
---|
| 3734 | host_match = host_match && *ptr == ':';
|
---|
| 3735 | ptr++;
|
---|
| 3736 | }
|
---|
| 3737 |
|
---|
| 3738 | if(host_match) {
|
---|
| 3739 | if(*ptr == ':') {
|
---|
| 3740 | /* an empty port always matches */
|
---|
| 3741 | port_match = TRUE;
|
---|
| 3742 | ptr++;
|
---|
| 3743 | }
|
---|
| 3744 | else {
|
---|
| 3745 | /* check whether the URL's port matches */
|
---|
| 3746 | char *ptr_next = strchr(ptr, ':');
|
---|
| 3747 | if(ptr_next) {
|
---|
| 3748 | char *endp = NULL;
|
---|
| 3749 | long port_to_match = strtol(ptr, &endp, 10);
|
---|
| 3750 | if((endp == ptr_next) && (port_to_match == conn->remote_port)) {
|
---|
| 3751 | port_match = TRUE;
|
---|
| 3752 | ptr = ptr_next + 1;
|
---|
| 3753 | }
|
---|
| 3754 | }
|
---|
| 3755 | }
|
---|
| 3756 | }
|
---|
| 3757 |
|
---|
| 3758 | if(host_match && port_match) {
|
---|
| 3759 | /* parse the hostname and port to connect to */
|
---|
| 3760 | result = parse_connect_to_host_port(data, ptr, host_result, port_result);
|
---|
| 3761 | }
|
---|
| 3762 |
|
---|
| 3763 | return result;
|
---|
| 3764 | }
|
---|
| 3765 |
|
---|
| 3766 | /*
|
---|
| 3767 | * Processes all strings in the "connect to" slist, and uses the "connect
|
---|
| 3768 | * to host" and "connect to port" of the first string that matches.
|
---|
| 3769 | */
|
---|
| 3770 | static CURLcode parse_connect_to_slist(struct Curl_easy *data,
|
---|
| 3771 | struct connectdata *conn,
|
---|
| 3772 | struct curl_slist *conn_to_host)
|
---|
| 3773 | {
|
---|
| 3774 | CURLcode result = CURLE_OK;
|
---|
| 3775 | char *host = NULL;
|
---|
| 3776 | int port = -1;
|
---|
| 3777 |
|
---|
| 3778 | while(conn_to_host && !host && port == -1) {
|
---|
| 3779 | result = parse_connect_to_string(data, conn, conn_to_host->data,
|
---|
| 3780 | &host, &port);
|
---|
| 3781 | if(result)
|
---|
| 3782 | return result;
|
---|
| 3783 |
|
---|
| 3784 | if(host && *host) {
|
---|
| 3785 | conn->conn_to_host.rawalloc = host;
|
---|
| 3786 | conn->conn_to_host.name = host;
|
---|
| 3787 | conn->bits.conn_to_host = TRUE;
|
---|
| 3788 |
|
---|
| 3789 | infof(data, "Connecting to hostname: %s\n", host);
|
---|
| 3790 | }
|
---|
| 3791 | else {
|
---|
| 3792 | /* no "connect to host" */
|
---|
| 3793 | conn->bits.conn_to_host = FALSE;
|
---|
| 3794 | Curl_safefree(host);
|
---|
| 3795 | }
|
---|
| 3796 |
|
---|
| 3797 | if(port >= 0) {
|
---|
| 3798 | conn->conn_to_port = port;
|
---|
| 3799 | conn->bits.conn_to_port = TRUE;
|
---|
| 3800 | infof(data, "Connecting to port: %d\n", port);
|
---|
| 3801 | }
|
---|
| 3802 | else {
|
---|
| 3803 | /* no "connect to port" */
|
---|
| 3804 | conn->bits.conn_to_port = FALSE;
|
---|
| 3805 | port = -1;
|
---|
| 3806 | }
|
---|
| 3807 |
|
---|
| 3808 | conn_to_host = conn_to_host->next;
|
---|
| 3809 | }
|
---|
| 3810 |
|
---|
| 3811 | return result;
|
---|
| 3812 | }
|
---|
| 3813 |
|
---|
| 3814 | /*************************************************************
|
---|
| 3815 | * Resolve the address of the server or proxy
|
---|
| 3816 | *************************************************************/
|
---|
| 3817 | static CURLcode resolve_server(struct Curl_easy *data,
|
---|
| 3818 | struct connectdata *conn,
|
---|
| 3819 | bool *async)
|
---|
| 3820 | {
|
---|
| 3821 | CURLcode result = CURLE_OK;
|
---|
| 3822 | timediff_t timeout_ms = Curl_timeleft(data, NULL, TRUE);
|
---|
| 3823 |
|
---|
| 3824 | /*************************************************************
|
---|
| 3825 | * Resolve the name of the server or proxy
|
---|
| 3826 | *************************************************************/
|
---|
| 3827 | if(conn->bits.reuse)
|
---|
| 3828 | /* We're reusing the connection - no need to resolve anything, and
|
---|
| 3829 | fix_hostname() was called already in create_conn() for the re-use
|
---|
| 3830 | case. */
|
---|
| 3831 | *async = FALSE;
|
---|
| 3832 |
|
---|
| 3833 | else {
|
---|
| 3834 | /* this is a fresh connect */
|
---|
| 3835 | int rc;
|
---|
| 3836 | struct Curl_dns_entry *hostaddr;
|
---|
| 3837 |
|
---|
| 3838 | #ifdef USE_UNIX_SOCKETS
|
---|
| 3839 | if(conn->unix_domain_socket) {
|
---|
| 3840 | /* Unix domain sockets are local. The host gets ignored, just use the
|
---|
| 3841 | * specified domain socket address. Do not cache "DNS entries". There is
|
---|
| 3842 | * no DNS involved and we already have the filesystem path available */
|
---|
| 3843 | const char *path = conn->unix_domain_socket;
|
---|
| 3844 |
|
---|
| 3845 | hostaddr = calloc(1, sizeof(struct Curl_dns_entry));
|
---|
| 3846 | if(!hostaddr)
|
---|
| 3847 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 3848 | else {
|
---|
| 3849 | bool longpath = FALSE;
|
---|
| 3850 | hostaddr->addr = Curl_unix2addr(path, &longpath,
|
---|
| 3851 | conn->abstract_unix_socket);
|
---|
| 3852 | if(hostaddr->addr)
|
---|
| 3853 | hostaddr->inuse++;
|
---|
| 3854 | else {
|
---|
| 3855 | /* Long paths are not supported for now */
|
---|
| 3856 | if(longpath) {
|
---|
| 3857 | failf(data, "Unix socket path too long: '%s'", path);
|
---|
| 3858 | result = CURLE_COULDNT_RESOLVE_HOST;
|
---|
| 3859 | }
|
---|
| 3860 | else
|
---|
| 3861 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 3862 | free(hostaddr);
|
---|
| 3863 | hostaddr = NULL;
|
---|
| 3864 | }
|
---|
| 3865 | }
|
---|
| 3866 | }
|
---|
| 3867 | else
|
---|
| 3868 | #endif
|
---|
| 3869 | if(!conn->bits.proxy) {
|
---|
| 3870 | struct hostname *connhost;
|
---|
| 3871 | if(conn->bits.conn_to_host)
|
---|
| 3872 | connhost = &conn->conn_to_host;
|
---|
| 3873 | else
|
---|
| 3874 | connhost = &conn->host;
|
---|
| 3875 |
|
---|
| 3876 | /* If not connecting via a proxy, extract the port from the URL, if it is
|
---|
| 3877 | * there, thus overriding any defaults that might have been set above. */
|
---|
| 3878 | if(conn->bits.conn_to_port)
|
---|
| 3879 | conn->port = conn->conn_to_port;
|
---|
| 3880 | else
|
---|
| 3881 | conn->port = conn->remote_port;
|
---|
| 3882 |
|
---|
| 3883 | /* Resolve target host right on */
|
---|
| 3884 | rc = Curl_resolv_timeout(conn, connhost->name, (int)conn->port,
|
---|
| 3885 | &hostaddr, timeout_ms);
|
---|
| 3886 | if(rc == CURLRESOLV_PENDING)
|
---|
| 3887 | *async = TRUE;
|
---|
| 3888 |
|
---|
| 3889 | else if(rc == CURLRESOLV_TIMEDOUT)
|
---|
| 3890 | result = CURLE_OPERATION_TIMEDOUT;
|
---|
| 3891 |
|
---|
| 3892 | else if(!hostaddr) {
|
---|
| 3893 | failf(data, "Couldn't resolve host '%s'", connhost->dispname);
|
---|
| 3894 | result = CURLE_COULDNT_RESOLVE_HOST;
|
---|
| 3895 | /* don't return yet, we need to clean up the timeout first */
|
---|
| 3896 | }
|
---|
| 3897 | }
|
---|
| 3898 | else {
|
---|
| 3899 | /* This is a proxy that hasn't been resolved yet. */
|
---|
| 3900 |
|
---|
| 3901 | struct hostname * const host = conn->bits.socksproxy ?
|
---|
| 3902 | &conn->socks_proxy.host : &conn->http_proxy.host;
|
---|
| 3903 |
|
---|
| 3904 | /* resolve proxy */
|
---|
| 3905 | rc = Curl_resolv_timeout(conn, host->name, (int)conn->port,
|
---|
| 3906 | &hostaddr, timeout_ms);
|
---|
| 3907 |
|
---|
| 3908 | if(rc == CURLRESOLV_PENDING)
|
---|
| 3909 | *async = TRUE;
|
---|
| 3910 |
|
---|
| 3911 | else if(rc == CURLRESOLV_TIMEDOUT)
|
---|
| 3912 | result = CURLE_OPERATION_TIMEDOUT;
|
---|
| 3913 |
|
---|
| 3914 | else if(!hostaddr) {
|
---|
| 3915 | failf(data, "Couldn't resolve proxy '%s'", host->dispname);
|
---|
| 3916 | result = CURLE_COULDNT_RESOLVE_PROXY;
|
---|
| 3917 | /* don't return yet, we need to clean up the timeout first */
|
---|
| 3918 | }
|
---|
| 3919 | }
|
---|
| 3920 | DEBUGASSERT(conn->dns_entry == NULL);
|
---|
| 3921 | conn->dns_entry = hostaddr;
|
---|
| 3922 | }
|
---|
| 3923 |
|
---|
| 3924 | return result;
|
---|
| 3925 | }
|
---|
| 3926 |
|
---|
| 3927 | /*
|
---|
| 3928 | * Cleanup the connection just allocated before we can move along and use the
|
---|
| 3929 | * previously existing one. All relevant data is copied over and old_conn is
|
---|
| 3930 | * ready for freeing once this function returns.
|
---|
| 3931 | */
|
---|
| 3932 | static void reuse_conn(struct connectdata *old_conn,
|
---|
| 3933 | struct connectdata *conn)
|
---|
| 3934 | {
|
---|
| 3935 | free_fixed_hostname(&old_conn->http_proxy.host);
|
---|
| 3936 | free_fixed_hostname(&old_conn->socks_proxy.host);
|
---|
| 3937 |
|
---|
| 3938 | free(old_conn->http_proxy.host.rawalloc);
|
---|
| 3939 | free(old_conn->socks_proxy.host.rawalloc);
|
---|
| 3940 |
|
---|
| 3941 | /* free the SSL config struct from this connection struct as this was
|
---|
| 3942 | allocated in vain and is targeted for destruction */
|
---|
| 3943 | Curl_free_primary_ssl_config(&old_conn->ssl_config);
|
---|
| 3944 | Curl_free_primary_ssl_config(&old_conn->proxy_ssl_config);
|
---|
| 3945 |
|
---|
| 3946 | conn->data = old_conn->data;
|
---|
| 3947 |
|
---|
| 3948 | /* get the user+password information from the old_conn struct since it may
|
---|
| 3949 | * be new for this request even when we re-use an existing connection */
|
---|
| 3950 | conn->bits.user_passwd = old_conn->bits.user_passwd;
|
---|
| 3951 | if(conn->bits.user_passwd) {
|
---|
| 3952 | /* use the new user name and password though */
|
---|
| 3953 | Curl_safefree(conn->user);
|
---|
| 3954 | Curl_safefree(conn->passwd);
|
---|
| 3955 | conn->user = old_conn->user;
|
---|
| 3956 | conn->passwd = old_conn->passwd;
|
---|
| 3957 | old_conn->user = NULL;
|
---|
| 3958 | old_conn->passwd = NULL;
|
---|
| 3959 | }
|
---|
| 3960 |
|
---|
| 3961 | conn->bits.proxy_user_passwd = old_conn->bits.proxy_user_passwd;
|
---|
| 3962 | if(conn->bits.proxy_user_passwd) {
|
---|
| 3963 | /* use the new proxy user name and proxy password though */
|
---|
| 3964 | Curl_safefree(conn->http_proxy.user);
|
---|
| 3965 | Curl_safefree(conn->socks_proxy.user);
|
---|
| 3966 | Curl_safefree(conn->http_proxy.passwd);
|
---|
| 3967 | Curl_safefree(conn->socks_proxy.passwd);
|
---|
| 3968 | conn->http_proxy.user = old_conn->http_proxy.user;
|
---|
| 3969 | conn->socks_proxy.user = old_conn->socks_proxy.user;
|
---|
| 3970 | conn->http_proxy.passwd = old_conn->http_proxy.passwd;
|
---|
| 3971 | conn->socks_proxy.passwd = old_conn->socks_proxy.passwd;
|
---|
| 3972 | old_conn->http_proxy.user = NULL;
|
---|
| 3973 | old_conn->socks_proxy.user = NULL;
|
---|
| 3974 | old_conn->http_proxy.passwd = NULL;
|
---|
| 3975 | old_conn->socks_proxy.passwd = NULL;
|
---|
| 3976 | }
|
---|
| 3977 |
|
---|
| 3978 | /* host can change, when doing keepalive with a proxy or if the case is
|
---|
| 3979 | different this time etc */
|
---|
| 3980 | free_fixed_hostname(&conn->host);
|
---|
| 3981 | free_fixed_hostname(&conn->conn_to_host);
|
---|
| 3982 | Curl_safefree(conn->host.rawalloc);
|
---|
| 3983 | Curl_safefree(conn->conn_to_host.rawalloc);
|
---|
| 3984 | conn->host = old_conn->host;
|
---|
| 3985 | conn->conn_to_host = old_conn->conn_to_host;
|
---|
| 3986 | conn->conn_to_port = old_conn->conn_to_port;
|
---|
| 3987 | conn->remote_port = old_conn->remote_port;
|
---|
| 3988 |
|
---|
| 3989 | /* persist connection info in session handle */
|
---|
| 3990 | Curl_persistconninfo(conn);
|
---|
| 3991 |
|
---|
| 3992 | conn_reset_all_postponed_data(old_conn); /* free buffers */
|
---|
| 3993 |
|
---|
| 3994 | /* re-use init */
|
---|
| 3995 | conn->bits.reuse = TRUE; /* yes, we're re-using here */
|
---|
| 3996 |
|
---|
| 3997 | Curl_safefree(old_conn->user);
|
---|
| 3998 | Curl_safefree(old_conn->passwd);
|
---|
| 3999 | Curl_safefree(old_conn->http_proxy.user);
|
---|
| 4000 | Curl_safefree(old_conn->socks_proxy.user);
|
---|
| 4001 | Curl_safefree(old_conn->http_proxy.passwd);
|
---|
| 4002 | Curl_safefree(old_conn->socks_proxy.passwd);
|
---|
| 4003 | Curl_safefree(old_conn->localdev);
|
---|
| 4004 |
|
---|
| 4005 | Curl_llist_destroy(&old_conn->send_pipe, NULL);
|
---|
| 4006 | Curl_llist_destroy(&old_conn->recv_pipe, NULL);
|
---|
| 4007 |
|
---|
| 4008 | Curl_safefree(old_conn->master_buffer);
|
---|
| 4009 |
|
---|
| 4010 | #ifdef USE_UNIX_SOCKETS
|
---|
| 4011 | Curl_safefree(old_conn->unix_domain_socket);
|
---|
| 4012 | #endif
|
---|
| 4013 | }
|
---|
| 4014 |
|
---|
| 4015 | /**
|
---|
| 4016 | * create_conn() sets up a new connectdata struct, or re-uses an already
|
---|
| 4017 | * existing one, and resolves host name.
|
---|
| 4018 | *
|
---|
| 4019 | * if this function returns CURLE_OK and *async is set to TRUE, the resolve
|
---|
| 4020 | * response will be coming asynchronously. If *async is FALSE, the name is
|
---|
| 4021 | * already resolved.
|
---|
| 4022 | *
|
---|
| 4023 | * @param data The sessionhandle pointer
|
---|
| 4024 | * @param in_connect is set to the next connection data pointer
|
---|
| 4025 | * @param async is set TRUE when an async DNS resolution is pending
|
---|
| 4026 | * @see Curl_setup_conn()
|
---|
| 4027 | *
|
---|
| 4028 | * *NOTE* this function assigns the conn->data pointer!
|
---|
| 4029 | */
|
---|
| 4030 |
|
---|
| 4031 | static CURLcode create_conn(struct Curl_easy *data,
|
---|
| 4032 | struct connectdata **in_connect,
|
---|
| 4033 | bool *async)
|
---|
| 4034 | {
|
---|
| 4035 | CURLcode result = CURLE_OK;
|
---|
| 4036 | struct connectdata *conn;
|
---|
| 4037 | struct connectdata *conn_temp = NULL;
|
---|
| 4038 | size_t urllen;
|
---|
| 4039 | char *user = NULL;
|
---|
| 4040 | char *passwd = NULL;
|
---|
| 4041 | char *options = NULL;
|
---|
| 4042 | bool reuse;
|
---|
| 4043 | bool prot_missing = FALSE;
|
---|
| 4044 | bool connections_available = TRUE;
|
---|
| 4045 | bool force_reuse = FALSE;
|
---|
| 4046 | bool waitpipe = FALSE;
|
---|
| 4047 | size_t max_host_connections = Curl_multi_max_host_connections(data->multi);
|
---|
| 4048 | size_t max_total_connections = Curl_multi_max_total_connections(data->multi);
|
---|
| 4049 |
|
---|
| 4050 | *async = FALSE;
|
---|
| 4051 |
|
---|
| 4052 | /*************************************************************
|
---|
| 4053 | * Check input data
|
---|
| 4054 | *************************************************************/
|
---|
| 4055 |
|
---|
| 4056 | if(!data->change.url) {
|
---|
| 4057 | result = CURLE_URL_MALFORMAT;
|
---|
| 4058 | goto out;
|
---|
| 4059 | }
|
---|
| 4060 |
|
---|
| 4061 | /* First, split up the current URL in parts so that we can use the
|
---|
| 4062 | parts for checking against the already present connections. In order
|
---|
| 4063 | to not have to modify everything at once, we allocate a temporary
|
---|
| 4064 | connection data struct and fill in for comparison purposes. */
|
---|
| 4065 | conn = allocate_conn(data);
|
---|
| 4066 |
|
---|
| 4067 | if(!conn) {
|
---|
| 4068 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4069 | goto out;
|
---|
| 4070 | }
|
---|
| 4071 |
|
---|
| 4072 | /* We must set the return variable as soon as possible, so that our
|
---|
| 4073 | parent can cleanup any possible allocs we may have done before
|
---|
| 4074 | any failure */
|
---|
| 4075 | *in_connect = conn;
|
---|
| 4076 |
|
---|
| 4077 | /* This initing continues below, see the comment "Continue connectdata
|
---|
| 4078 | * initialization here" */
|
---|
| 4079 |
|
---|
| 4080 | /***********************************************************
|
---|
| 4081 | * We need to allocate memory to store the path in. We get the size of the
|
---|
| 4082 | * full URL to be sure, and we need to make it at least 256 bytes since
|
---|
| 4083 | * other parts of the code will rely on this fact
|
---|
| 4084 | ***********************************************************/
|
---|
| 4085 | #define LEAST_PATH_ALLOC 256
|
---|
| 4086 | urllen = strlen(data->change.url);
|
---|
| 4087 | if(urllen < LEAST_PATH_ALLOC)
|
---|
| 4088 | urllen = LEAST_PATH_ALLOC;
|
---|
| 4089 |
|
---|
| 4090 | /*
|
---|
| 4091 | * We malloc() the buffers below urllen+2 to make room for 2 possibilities:
|
---|
| 4092 | * 1 - an extra terminating zero
|
---|
| 4093 | * 2 - an extra slash (in case a syntax like "www.host.com?moo" is used)
|
---|
| 4094 | */
|
---|
| 4095 |
|
---|
| 4096 | Curl_safefree(data->state.pathbuffer);
|
---|
| 4097 | data->state.path = NULL;
|
---|
| 4098 |
|
---|
| 4099 | data->state.pathbuffer = malloc(urllen + 2);
|
---|
| 4100 | if(NULL == data->state.pathbuffer) {
|
---|
| 4101 | result = CURLE_OUT_OF_MEMORY; /* really bad error */
|
---|
| 4102 | goto out;
|
---|
| 4103 | }
|
---|
| 4104 | data->state.path = data->state.pathbuffer;
|
---|
| 4105 |
|
---|
| 4106 | conn->host.rawalloc = malloc(urllen + 2);
|
---|
| 4107 | if(NULL == conn->host.rawalloc) {
|
---|
| 4108 | Curl_safefree(data->state.pathbuffer);
|
---|
| 4109 | data->state.path = NULL;
|
---|
| 4110 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4111 | goto out;
|
---|
| 4112 | }
|
---|
| 4113 |
|
---|
| 4114 | conn->host.name = conn->host.rawalloc;
|
---|
| 4115 | conn->host.name[0] = 0;
|
---|
| 4116 |
|
---|
| 4117 | user = strdup("");
|
---|
| 4118 | passwd = strdup("");
|
---|
| 4119 | options = strdup("");
|
---|
| 4120 | if(!user || !passwd || !options) {
|
---|
| 4121 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4122 | goto out;
|
---|
| 4123 | }
|
---|
| 4124 |
|
---|
| 4125 | result = parseurlandfillconn(data, conn, &prot_missing, &user, &passwd,
|
---|
| 4126 | &options);
|
---|
| 4127 | if(result)
|
---|
| 4128 | goto out;
|
---|
| 4129 |
|
---|
| 4130 | /*************************************************************
|
---|
| 4131 | * No protocol part in URL was used, add it!
|
---|
| 4132 | *************************************************************/
|
---|
| 4133 | if(prot_missing) {
|
---|
| 4134 | /* We're guessing prefixes here and if we're told to use a proxy or if
|
---|
| 4135 | we're gonna follow a Location: later or... then we need the protocol
|
---|
| 4136 | part added so that we have a valid URL. */
|
---|
| 4137 | char *reurl;
|
---|
| 4138 | char *ch_lower;
|
---|
| 4139 |
|
---|
| 4140 | reurl = aprintf("%s://%s", conn->handler->scheme, data->change.url);
|
---|
| 4141 |
|
---|
| 4142 | if(!reurl) {
|
---|
| 4143 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4144 | goto out;
|
---|
| 4145 | }
|
---|
| 4146 |
|
---|
| 4147 | /* Change protocol prefix to lower-case */
|
---|
| 4148 | for(ch_lower = reurl; *ch_lower != ':'; ch_lower++)
|
---|
| 4149 | *ch_lower = (char)TOLOWER(*ch_lower);
|
---|
| 4150 |
|
---|
| 4151 | if(data->change.url_alloc) {
|
---|
| 4152 | Curl_safefree(data->change.url);
|
---|
| 4153 | data->change.url_alloc = FALSE;
|
---|
| 4154 | }
|
---|
| 4155 |
|
---|
| 4156 | data->change.url = reurl;
|
---|
| 4157 | data->change.url_alloc = TRUE; /* free this later */
|
---|
| 4158 | }
|
---|
| 4159 |
|
---|
| 4160 | /*************************************************************
|
---|
| 4161 | * If the protocol can't handle url query strings, then cut
|
---|
| 4162 | * off the unhandable part
|
---|
| 4163 | *************************************************************/
|
---|
| 4164 | if((conn->given->flags&PROTOPT_NOURLQUERY)) {
|
---|
| 4165 | char *path_q_sep = strchr(conn->data->state.path, '?');
|
---|
| 4166 | if(path_q_sep) {
|
---|
| 4167 | /* according to rfc3986, allow the query (?foo=bar)
|
---|
| 4168 | also on protocols that can't handle it.
|
---|
| 4169 |
|
---|
| 4170 | cut the string-part after '?'
|
---|
| 4171 | */
|
---|
| 4172 |
|
---|
| 4173 | /* terminate the string */
|
---|
| 4174 | path_q_sep[0] = 0;
|
---|
| 4175 | }
|
---|
| 4176 | }
|
---|
| 4177 |
|
---|
| 4178 | if(data->set.str[STRING_BEARER]) {
|
---|
| 4179 | conn->oauth_bearer = strdup(data->set.str[STRING_BEARER]);
|
---|
| 4180 | if(!conn->oauth_bearer) {
|
---|
| 4181 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4182 | goto out;
|
---|
| 4183 | }
|
---|
| 4184 | }
|
---|
| 4185 |
|
---|
| 4186 | #ifdef USE_UNIX_SOCKETS
|
---|
| 4187 | if(data->set.str[STRING_UNIX_SOCKET_PATH]) {
|
---|
| 4188 | conn->unix_domain_socket = strdup(data->set.str[STRING_UNIX_SOCKET_PATH]);
|
---|
| 4189 | if(conn->unix_domain_socket == NULL) {
|
---|
| 4190 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4191 | goto out;
|
---|
| 4192 | }
|
---|
| 4193 | conn->abstract_unix_socket = data->set.abstract_unix_socket;
|
---|
| 4194 | }
|
---|
| 4195 | #endif
|
---|
| 4196 |
|
---|
| 4197 | /* After the unix socket init but before the proxy vars are used, parse and
|
---|
| 4198 | initialize the proxy vars */
|
---|
| 4199 | #ifndef CURL_DISABLE_PROXY
|
---|
| 4200 | result = create_conn_helper_init_proxy(conn);
|
---|
| 4201 | if(result)
|
---|
| 4202 | goto out;
|
---|
| 4203 | #endif
|
---|
| 4204 |
|
---|
| 4205 | /*************************************************************
|
---|
| 4206 | * If the protocol is using SSL and HTTP proxy is used, we set
|
---|
| 4207 | * the tunnel_proxy bit.
|
---|
| 4208 | *************************************************************/
|
---|
| 4209 | if((conn->given->flags&PROTOPT_SSL) && conn->bits.httpproxy)
|
---|
| 4210 | conn->bits.tunnel_proxy = TRUE;
|
---|
| 4211 |
|
---|
| 4212 | /*************************************************************
|
---|
| 4213 | * Figure out the remote port number and fix it in the URL
|
---|
| 4214 | *************************************************************/
|
---|
| 4215 | result = parse_remote_port(data, conn);
|
---|
| 4216 | if(result)
|
---|
| 4217 | goto out;
|
---|
| 4218 |
|
---|
| 4219 | /* Check for overridden login details and set them accordingly so they
|
---|
| 4220 | they are known when protocol->setup_connection is called! */
|
---|
| 4221 | result = override_login(data, conn, &user, &passwd, &options);
|
---|
| 4222 | if(result)
|
---|
| 4223 | goto out;
|
---|
| 4224 | result = set_login(conn, user, passwd, options);
|
---|
| 4225 | if(result)
|
---|
| 4226 | goto out;
|
---|
| 4227 |
|
---|
| 4228 | /*************************************************************
|
---|
| 4229 | * Process the "connect to" linked list of hostname/port mappings.
|
---|
| 4230 | * Do this after the remote port number has been fixed in the URL.
|
---|
| 4231 | *************************************************************/
|
---|
| 4232 | result = parse_connect_to_slist(data, conn, data->set.connect_to);
|
---|
| 4233 | if(result)
|
---|
| 4234 | goto out;
|
---|
| 4235 |
|
---|
| 4236 | /*************************************************************
|
---|
| 4237 | * IDN-fix the hostnames
|
---|
| 4238 | *************************************************************/
|
---|
| 4239 | result = fix_hostname(conn, &conn->host);
|
---|
| 4240 | if(result)
|
---|
| 4241 | goto out;
|
---|
| 4242 | if(conn->bits.conn_to_host) {
|
---|
| 4243 | result = fix_hostname(conn, &conn->conn_to_host);
|
---|
| 4244 | if(result)
|
---|
| 4245 | goto out;
|
---|
| 4246 | }
|
---|
| 4247 | if(conn->bits.httpproxy) {
|
---|
| 4248 | result = fix_hostname(conn, &conn->http_proxy.host);
|
---|
| 4249 | if(result)
|
---|
| 4250 | goto out;
|
---|
| 4251 | }
|
---|
| 4252 | if(conn->bits.socksproxy) {
|
---|
| 4253 | result = fix_hostname(conn, &conn->socks_proxy.host);
|
---|
| 4254 | if(result)
|
---|
| 4255 | goto out;
|
---|
| 4256 | }
|
---|
| 4257 |
|
---|
| 4258 | /*************************************************************
|
---|
| 4259 | * Check whether the host and the "connect to host" are equal.
|
---|
| 4260 | * Do this after the hostnames have been IDN-fixed.
|
---|
| 4261 | *************************************************************/
|
---|
| 4262 | if(conn->bits.conn_to_host &&
|
---|
| 4263 | strcasecompare(conn->conn_to_host.name, conn->host.name)) {
|
---|
| 4264 | conn->bits.conn_to_host = FALSE;
|
---|
| 4265 | }
|
---|
| 4266 |
|
---|
| 4267 | /*************************************************************
|
---|
| 4268 | * Check whether the port and the "connect to port" are equal.
|
---|
| 4269 | * Do this after the remote port number has been fixed in the URL.
|
---|
| 4270 | *************************************************************/
|
---|
| 4271 | if(conn->bits.conn_to_port && conn->conn_to_port == conn->remote_port) {
|
---|
| 4272 | conn->bits.conn_to_port = FALSE;
|
---|
| 4273 | }
|
---|
| 4274 |
|
---|
| 4275 | /*************************************************************
|
---|
| 4276 | * If the "connect to" feature is used with an HTTP proxy,
|
---|
| 4277 | * we set the tunnel_proxy bit.
|
---|
| 4278 | *************************************************************/
|
---|
| 4279 | if((conn->bits.conn_to_host || conn->bits.conn_to_port) &&
|
---|
| 4280 | conn->bits.httpproxy)
|
---|
| 4281 | conn->bits.tunnel_proxy = TRUE;
|
---|
| 4282 |
|
---|
| 4283 | /*************************************************************
|
---|
| 4284 | * Setup internals depending on protocol. Needs to be done after
|
---|
| 4285 | * we figured out what/if proxy to use.
|
---|
| 4286 | *************************************************************/
|
---|
| 4287 | result = setup_connection_internals(conn);
|
---|
| 4288 | if(result)
|
---|
| 4289 | goto out;
|
---|
| 4290 |
|
---|
| 4291 | conn->recv[FIRSTSOCKET] = Curl_recv_plain;
|
---|
| 4292 | conn->send[FIRSTSOCKET] = Curl_send_plain;
|
---|
| 4293 | conn->recv[SECONDARYSOCKET] = Curl_recv_plain;
|
---|
| 4294 | conn->send[SECONDARYSOCKET] = Curl_send_plain;
|
---|
| 4295 |
|
---|
| 4296 | conn->bits.tcp_fastopen = data->set.tcp_fastopen;
|
---|
| 4297 |
|
---|
| 4298 | /***********************************************************************
|
---|
| 4299 | * file: is a special case in that it doesn't need a network connection
|
---|
| 4300 | ***********************************************************************/
|
---|
| 4301 | #ifndef CURL_DISABLE_FILE
|
---|
| 4302 | if(conn->handler->flags & PROTOPT_NONETWORK) {
|
---|
| 4303 | bool done;
|
---|
| 4304 | /* this is supposed to be the connect function so we better at least check
|
---|
| 4305 | that the file is present here! */
|
---|
| 4306 | DEBUGASSERT(conn->handler->connect_it);
|
---|
| 4307 | result = conn->handler->connect_it(conn, &done);
|
---|
| 4308 |
|
---|
| 4309 | /* Setup a "faked" transfer that'll do nothing */
|
---|
| 4310 | if(!result) {
|
---|
| 4311 | conn->data = data;
|
---|
| 4312 | conn->bits.tcpconnect[FIRSTSOCKET] = TRUE; /* we are "connected */
|
---|
| 4313 |
|
---|
| 4314 | Curl_conncache_add_conn(data->state.conn_cache, conn);
|
---|
| 4315 |
|
---|
| 4316 | /*
|
---|
| 4317 | * Setup whatever necessary for a resumed transfer
|
---|
| 4318 | */
|
---|
| 4319 | result = setup_range(data);
|
---|
| 4320 | if(result) {
|
---|
| 4321 | DEBUGASSERT(conn->handler->done);
|
---|
| 4322 | /* we ignore the return code for the protocol-specific DONE */
|
---|
| 4323 | (void)conn->handler->done(conn, result, FALSE);
|
---|
| 4324 | goto out;
|
---|
| 4325 | }
|
---|
| 4326 |
|
---|
| 4327 | Curl_setup_transfer(conn, -1, -1, FALSE, NULL, /* no download */
|
---|
| 4328 | -1, NULL); /* no upload */
|
---|
| 4329 | }
|
---|
| 4330 |
|
---|
| 4331 | /* since we skip do_init() */
|
---|
| 4332 | Curl_init_do(data, conn);
|
---|
| 4333 |
|
---|
| 4334 | goto out;
|
---|
| 4335 | }
|
---|
| 4336 | #endif
|
---|
| 4337 |
|
---|
| 4338 | /* Get a cloned copy of the SSL config situation stored in the
|
---|
| 4339 | connection struct. But to get this going nicely, we must first make
|
---|
| 4340 | sure that the strings in the master copy are pointing to the correct
|
---|
| 4341 | strings in the session handle strings array!
|
---|
| 4342 |
|
---|
| 4343 | Keep in mind that the pointers in the master copy are pointing to strings
|
---|
| 4344 | that will be freed as part of the Curl_easy struct, but all cloned
|
---|
| 4345 | copies will be separately allocated.
|
---|
| 4346 | */
|
---|
| 4347 | data->set.ssl.primary.CApath = data->set.str[STRING_SSL_CAPATH_ORIG];
|
---|
| 4348 | data->set.proxy_ssl.primary.CApath = data->set.str[STRING_SSL_CAPATH_PROXY];
|
---|
| 4349 | data->set.ssl.primary.CAfile = data->set.str[STRING_SSL_CAFILE_ORIG];
|
---|
| 4350 | data->set.proxy_ssl.primary.CAfile = data->set.str[STRING_SSL_CAFILE_PROXY];
|
---|
| 4351 | data->set.ssl.primary.random_file = data->set.str[STRING_SSL_RANDOM_FILE];
|
---|
| 4352 | data->set.proxy_ssl.primary.random_file =
|
---|
| 4353 | data->set.str[STRING_SSL_RANDOM_FILE];
|
---|
| 4354 | data->set.ssl.primary.egdsocket = data->set.str[STRING_SSL_EGDSOCKET];
|
---|
| 4355 | data->set.proxy_ssl.primary.egdsocket = data->set.str[STRING_SSL_EGDSOCKET];
|
---|
| 4356 | data->set.ssl.primary.cipher_list =
|
---|
| 4357 | data->set.str[STRING_SSL_CIPHER_LIST_ORIG];
|
---|
| 4358 | data->set.proxy_ssl.primary.cipher_list =
|
---|
| 4359 | data->set.str[STRING_SSL_CIPHER_LIST_PROXY];
|
---|
| 4360 |
|
---|
| 4361 | data->set.ssl.CRLfile = data->set.str[STRING_SSL_CRLFILE_ORIG];
|
---|
| 4362 | data->set.proxy_ssl.CRLfile = data->set.str[STRING_SSL_CRLFILE_PROXY];
|
---|
| 4363 | data->set.ssl.issuercert = data->set.str[STRING_SSL_ISSUERCERT_ORIG];
|
---|
| 4364 | data->set.proxy_ssl.issuercert = data->set.str[STRING_SSL_ISSUERCERT_PROXY];
|
---|
| 4365 | data->set.ssl.cert = data->set.str[STRING_CERT_ORIG];
|
---|
| 4366 | data->set.proxy_ssl.cert = data->set.str[STRING_CERT_PROXY];
|
---|
| 4367 | data->set.ssl.cert_type = data->set.str[STRING_CERT_TYPE_ORIG];
|
---|
| 4368 | data->set.proxy_ssl.cert_type = data->set.str[STRING_CERT_TYPE_PROXY];
|
---|
| 4369 | data->set.ssl.key = data->set.str[STRING_KEY_ORIG];
|
---|
| 4370 | data->set.proxy_ssl.key = data->set.str[STRING_KEY_PROXY];
|
---|
| 4371 | data->set.ssl.key_type = data->set.str[STRING_KEY_TYPE_ORIG];
|
---|
| 4372 | data->set.proxy_ssl.key_type = data->set.str[STRING_KEY_TYPE_PROXY];
|
---|
| 4373 | data->set.ssl.key_passwd = data->set.str[STRING_KEY_PASSWD_ORIG];
|
---|
| 4374 | data->set.proxy_ssl.key_passwd = data->set.str[STRING_KEY_PASSWD_PROXY];
|
---|
| 4375 | data->set.ssl.primary.clientcert = data->set.str[STRING_CERT_ORIG];
|
---|
| 4376 | data->set.proxy_ssl.primary.clientcert = data->set.str[STRING_CERT_PROXY];
|
---|
| 4377 | #ifdef USE_TLS_SRP
|
---|
| 4378 | data->set.ssl.username = data->set.str[STRING_TLSAUTH_USERNAME_ORIG];
|
---|
| 4379 | data->set.proxy_ssl.username = data->set.str[STRING_TLSAUTH_USERNAME_PROXY];
|
---|
| 4380 | data->set.ssl.password = data->set.str[STRING_TLSAUTH_PASSWORD_ORIG];
|
---|
| 4381 | data->set.proxy_ssl.password = data->set.str[STRING_TLSAUTH_PASSWORD_PROXY];
|
---|
| 4382 | #endif
|
---|
| 4383 |
|
---|
| 4384 | if(!Curl_clone_primary_ssl_config(&data->set.ssl.primary,
|
---|
| 4385 | &conn->ssl_config)) {
|
---|
| 4386 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4387 | goto out;
|
---|
| 4388 | }
|
---|
| 4389 |
|
---|
| 4390 | if(!Curl_clone_primary_ssl_config(&data->set.proxy_ssl.primary,
|
---|
| 4391 | &conn->proxy_ssl_config)) {
|
---|
| 4392 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 4393 | goto out;
|
---|
| 4394 | }
|
---|
| 4395 |
|
---|
| 4396 | prune_dead_connections(data);
|
---|
| 4397 |
|
---|
| 4398 | /*************************************************************
|
---|
| 4399 | * Check the current list of connections to see if we can
|
---|
| 4400 | * re-use an already existing one or if we have to create a
|
---|
| 4401 | * new one.
|
---|
| 4402 | *************************************************************/
|
---|
| 4403 |
|
---|
| 4404 | /* reuse_fresh is TRUE if we are told to use a new connection by force, but
|
---|
| 4405 | we only acknowledge this option if this is not a re-used connection
|
---|
| 4406 | already (which happens due to follow-location or during a HTTP
|
---|
| 4407 | authentication phase). */
|
---|
| 4408 | if(data->set.reuse_fresh && !data->state.this_is_a_follow)
|
---|
| 4409 | reuse = FALSE;
|
---|
| 4410 | else
|
---|
| 4411 | reuse = ConnectionExists(data, conn, &conn_temp, &force_reuse, &waitpipe);
|
---|
| 4412 |
|
---|
| 4413 | /* If we found a reusable connection, we may still want to
|
---|
| 4414 | open a new connection if we are pipelining. */
|
---|
| 4415 | if(reuse && !force_reuse && IsPipeliningPossible(data, conn_temp)) {
|
---|
| 4416 | size_t pipelen = conn_temp->send_pipe.size + conn_temp->recv_pipe.size;
|
---|
| 4417 | if(pipelen > 0) {
|
---|
| 4418 | infof(data, "Found connection %ld, with requests in the pipe (%zu)\n",
|
---|
| 4419 | conn_temp->connection_id, pipelen);
|
---|
| 4420 |
|
---|
| 4421 | if(conn_temp->bundle->num_connections < max_host_connections &&
|
---|
| 4422 | data->state.conn_cache->num_connections < max_total_connections) {
|
---|
| 4423 | /* We want a new connection anyway */
|
---|
| 4424 | reuse = FALSE;
|
---|
| 4425 |
|
---|
| 4426 | infof(data, "We can reuse, but we want a new connection anyway\n");
|
---|
| 4427 | }
|
---|
| 4428 | }
|
---|
| 4429 | }
|
---|
| 4430 |
|
---|
| 4431 | if(reuse) {
|
---|
| 4432 | /*
|
---|
| 4433 | * We already have a connection for this, we got the former connection
|
---|
| 4434 | * in the conn_temp variable and thus we need to cleanup the one we
|
---|
| 4435 | * just allocated before we can move along and use the previously
|
---|
| 4436 | * existing one.
|
---|
| 4437 | */
|
---|
| 4438 | conn_temp->inuse = TRUE; /* mark this as being in use so that no other
|
---|
| 4439 | handle in a multi stack may nick it */
|
---|
| 4440 | reuse_conn(conn, conn_temp);
|
---|
| 4441 | free(conn); /* we don't need this anymore */
|
---|
| 4442 | conn = conn_temp;
|
---|
| 4443 | *in_connect = conn;
|
---|
| 4444 |
|
---|
| 4445 | infof(data, "Re-using existing connection! (#%ld) with %s %s\n",
|
---|
| 4446 | conn->connection_id,
|
---|
| 4447 | conn->bits.proxy?"proxy":"host",
|
---|
| 4448 | conn->socks_proxy.host.name ? conn->socks_proxy.host.dispname :
|
---|
| 4449 | conn->http_proxy.host.name ? conn->http_proxy.host.dispname :
|
---|
| 4450 | conn->host.dispname);
|
---|
| 4451 | }
|
---|
| 4452 | else {
|
---|
| 4453 | /* We have decided that we want a new connection. However, we may not
|
---|
| 4454 | be able to do that if we have reached the limit of how many
|
---|
| 4455 | connections we are allowed to open. */
|
---|
| 4456 | struct connectbundle *bundle = NULL;
|
---|
| 4457 |
|
---|
| 4458 | if(conn->handler->flags & PROTOPT_ALPN_NPN) {
|
---|
| 4459 | /* The protocol wants it, so set the bits if enabled in the easy handle
|
---|
| 4460 | (default) */
|
---|
| 4461 | if(data->set.ssl_enable_alpn)
|
---|
| 4462 | conn->bits.tls_enable_alpn = TRUE;
|
---|
| 4463 | if(data->set.ssl_enable_npn)
|
---|
| 4464 | conn->bits.tls_enable_npn = TRUE;
|
---|
| 4465 | }
|
---|
| 4466 |
|
---|
| 4467 | if(waitpipe)
|
---|
| 4468 | /* There is a connection that *might* become usable for pipelining
|
---|
| 4469 | "soon", and we wait for that */
|
---|
| 4470 | connections_available = FALSE;
|
---|
| 4471 | else
|
---|
| 4472 | bundle = Curl_conncache_find_bundle(conn, data->state.conn_cache);
|
---|
| 4473 |
|
---|
| 4474 | if(max_host_connections > 0 && bundle &&
|
---|
| 4475 | (bundle->num_connections >= max_host_connections)) {
|
---|
| 4476 | struct connectdata *conn_candidate;
|
---|
| 4477 |
|
---|
| 4478 | /* The bundle is full. Let's see if we can kill a connection. */
|
---|
| 4479 | conn_candidate = find_oldest_idle_connection_in_bundle(data, bundle);
|
---|
| 4480 |
|
---|
| 4481 | if(conn_candidate) {
|
---|
| 4482 | /* Set the connection's owner correctly, then kill it */
|
---|
| 4483 | conn_candidate->data = data;
|
---|
| 4484 | (void)Curl_disconnect(conn_candidate, /* dead_connection */ FALSE);
|
---|
| 4485 | }
|
---|
| 4486 | else {
|
---|
| 4487 | infof(data, "No more connections allowed to host: %d\n",
|
---|
| 4488 | max_host_connections);
|
---|
| 4489 | connections_available = FALSE;
|
---|
| 4490 | }
|
---|
| 4491 | }
|
---|
| 4492 |
|
---|
| 4493 | if(connections_available &&
|
---|
| 4494 | (max_total_connections > 0) &&
|
---|
| 4495 | (data->state.conn_cache->num_connections >= max_total_connections)) {
|
---|
| 4496 | struct connectdata *conn_candidate;
|
---|
| 4497 |
|
---|
| 4498 | /* The cache is full. Let's see if we can kill a connection. */
|
---|
| 4499 | conn_candidate = Curl_conncache_oldest_idle(data);
|
---|
| 4500 |
|
---|
| 4501 | if(conn_candidate) {
|
---|
| 4502 | /* Set the connection's owner correctly, then kill it */
|
---|
| 4503 | conn_candidate->data = data;
|
---|
| 4504 | (void)Curl_disconnect(conn_candidate, /* dead_connection */ FALSE);
|
---|
| 4505 | }
|
---|
| 4506 | else {
|
---|
| 4507 | infof(data, "No connections available in cache\n");
|
---|
| 4508 | connections_available = FALSE;
|
---|
| 4509 | }
|
---|
| 4510 | }
|
---|
| 4511 |
|
---|
| 4512 | if(!connections_available) {
|
---|
| 4513 | infof(data, "No connections available.\n");
|
---|
| 4514 |
|
---|
| 4515 | conn_free(conn);
|
---|
| 4516 | *in_connect = NULL;
|
---|
| 4517 |
|
---|
| 4518 | result = CURLE_NO_CONNECTION_AVAILABLE;
|
---|
| 4519 | goto out;
|
---|
| 4520 | }
|
---|
| 4521 | else {
|
---|
| 4522 | /*
|
---|
| 4523 | * This is a brand new connection, so let's store it in the connection
|
---|
| 4524 | * cache of ours!
|
---|
| 4525 | */
|
---|
| 4526 | Curl_conncache_add_conn(data->state.conn_cache, conn);
|
---|
| 4527 | }
|
---|
| 4528 |
|
---|
| 4529 | #if defined(USE_NTLM)
|
---|
| 4530 | /* If NTLM is requested in a part of this connection, make sure we don't
|
---|
| 4531 | assume the state is fine as this is a fresh connection and NTLM is
|
---|
| 4532 | connection based. */
|
---|
| 4533 | if((data->state.authhost.picked & (CURLAUTH_NTLM | CURLAUTH_NTLM_WB)) &&
|
---|
| 4534 | data->state.authhost.done) {
|
---|
| 4535 | infof(data, "NTLM picked AND auth done set, clear picked!\n");
|
---|
| 4536 | data->state.authhost.picked = CURLAUTH_NONE;
|
---|
| 4537 | data->state.authhost.done = FALSE;
|
---|
| 4538 | }
|
---|
| 4539 |
|
---|
| 4540 | if((data->state.authproxy.picked & (CURLAUTH_NTLM | CURLAUTH_NTLM_WB)) &&
|
---|
| 4541 | data->state.authproxy.done) {
|
---|
| 4542 | infof(data, "NTLM-proxy picked AND auth done set, clear picked!\n");
|
---|
| 4543 | data->state.authproxy.picked = CURLAUTH_NONE;
|
---|
| 4544 | data->state.authproxy.done = FALSE;
|
---|
| 4545 | }
|
---|
| 4546 | #endif
|
---|
| 4547 | }
|
---|
| 4548 |
|
---|
| 4549 | /* Mark the connection as used */
|
---|
| 4550 | conn->inuse = TRUE;
|
---|
| 4551 |
|
---|
| 4552 | /* Setup and init stuff before DO starts, in preparing for the transfer. */
|
---|
| 4553 | Curl_init_do(data, conn);
|
---|
| 4554 |
|
---|
| 4555 | /*
|
---|
| 4556 | * Setup whatever necessary for a resumed transfer
|
---|
| 4557 | */
|
---|
| 4558 | result = setup_range(data);
|
---|
| 4559 | if(result)
|
---|
| 4560 | goto out;
|
---|
| 4561 |
|
---|
| 4562 | /* Continue connectdata initialization here. */
|
---|
| 4563 |
|
---|
| 4564 | /*
|
---|
| 4565 | * Inherit the proper values from the urldata struct AFTER we have arranged
|
---|
| 4566 | * the persistent connection stuff
|
---|
| 4567 | */
|
---|
| 4568 | conn->seek_func = data->set.seek_func;
|
---|
| 4569 | conn->seek_client = data->set.seek_client;
|
---|
| 4570 |
|
---|
| 4571 | /*************************************************************
|
---|
| 4572 | * Resolve the address of the server or proxy
|
---|
| 4573 | *************************************************************/
|
---|
| 4574 | result = resolve_server(data, conn, async);
|
---|
| 4575 |
|
---|
| 4576 | out:
|
---|
| 4577 |
|
---|
| 4578 | free(options);
|
---|
| 4579 | free(passwd);
|
---|
| 4580 | free(user);
|
---|
| 4581 | return result;
|
---|
| 4582 | }
|
---|
| 4583 |
|
---|
| 4584 | /* Curl_setup_conn() is called after the name resolve initiated in
|
---|
| 4585 | * create_conn() is all done.
|
---|
| 4586 | *
|
---|
| 4587 | * Curl_setup_conn() also handles reused connections
|
---|
| 4588 | *
|
---|
| 4589 | * conn->data MUST already have been setup fine (in create_conn)
|
---|
| 4590 | */
|
---|
| 4591 |
|
---|
| 4592 | CURLcode Curl_setup_conn(struct connectdata *conn,
|
---|
| 4593 | bool *protocol_done)
|
---|
| 4594 | {
|
---|
| 4595 | CURLcode result = CURLE_OK;
|
---|
| 4596 | struct Curl_easy *data = conn->data;
|
---|
| 4597 |
|
---|
| 4598 | Curl_pgrsTime(data, TIMER_NAMELOOKUP);
|
---|
| 4599 |
|
---|
| 4600 | if(conn->handler->flags & PROTOPT_NONETWORK) {
|
---|
| 4601 | /* nothing to setup when not using a network */
|
---|
| 4602 | *protocol_done = TRUE;
|
---|
| 4603 | return result;
|
---|
| 4604 | }
|
---|
| 4605 | *protocol_done = FALSE; /* default to not done */
|
---|
| 4606 |
|
---|
| 4607 | /* set proxy_connect_closed to false unconditionally already here since it
|
---|
| 4608 | is used strictly to provide extra information to a parent function in the
|
---|
| 4609 | case of proxy CONNECT failures and we must make sure we don't have it
|
---|
| 4610 | lingering set from a previous invoke */
|
---|
| 4611 | conn->bits.proxy_connect_closed = FALSE;
|
---|
| 4612 |
|
---|
| 4613 | /*
|
---|
| 4614 | * Set user-agent. Used for HTTP, but since we can attempt to tunnel
|
---|
| 4615 | * basically anything through a http proxy we can't limit this based on
|
---|
| 4616 | * protocol.
|
---|
| 4617 | */
|
---|
| 4618 | if(data->set.str[STRING_USERAGENT]) {
|
---|
| 4619 | Curl_safefree(conn->allocptr.uagent);
|
---|
| 4620 | conn->allocptr.uagent =
|
---|
| 4621 | aprintf("User-Agent: %s\r\n", data->set.str[STRING_USERAGENT]);
|
---|
| 4622 | if(!conn->allocptr.uagent)
|
---|
| 4623 | return CURLE_OUT_OF_MEMORY;
|
---|
| 4624 | }
|
---|
| 4625 |
|
---|
| 4626 | data->req.headerbytecount = 0;
|
---|
| 4627 |
|
---|
| 4628 | #ifdef CURL_DO_LINEEND_CONV
|
---|
| 4629 | data->state.crlf_conversions = 0; /* reset CRLF conversion counter */
|
---|
| 4630 | #endif /* CURL_DO_LINEEND_CONV */
|
---|
| 4631 |
|
---|
| 4632 | /* set start time here for timeout purposes in the connect procedure, it
|
---|
| 4633 | is later set again for the progress meter purpose */
|
---|
| 4634 | conn->now = Curl_now();
|
---|
| 4635 |
|
---|
| 4636 | if(CURL_SOCKET_BAD == conn->sock[FIRSTSOCKET]) {
|
---|
| 4637 | conn->bits.tcpconnect[FIRSTSOCKET] = FALSE;
|
---|
| 4638 | result = Curl_connecthost(conn, conn->dns_entry);
|
---|
| 4639 | if(result)
|
---|
| 4640 | return result;
|
---|
| 4641 | }
|
---|
| 4642 | else {
|
---|
| 4643 | Curl_pgrsTime(data, TIMER_CONNECT); /* we're connected already */
|
---|
| 4644 | Curl_pgrsTime(data, TIMER_APPCONNECT); /* we're connected already */
|
---|
| 4645 | conn->bits.tcpconnect[FIRSTSOCKET] = TRUE;
|
---|
| 4646 | *protocol_done = TRUE;
|
---|
| 4647 | Curl_updateconninfo(conn, conn->sock[FIRSTSOCKET]);
|
---|
| 4648 | Curl_verboseconnect(conn);
|
---|
| 4649 | }
|
---|
| 4650 |
|
---|
| 4651 | conn->now = Curl_now(); /* time this *after* the connect is done, we
|
---|
| 4652 | set this here perhaps a second time */
|
---|
| 4653 |
|
---|
| 4654 | #ifdef __EMX__
|
---|
| 4655 | /*
|
---|
| 4656 | * This check is quite a hack. We're calling _fsetmode to fix the problem
|
---|
| 4657 | * with fwrite converting newline characters (you get mangled text files,
|
---|
| 4658 | * and corrupted binary files when you download to stdout and redirect it to
|
---|
| 4659 | * a file).
|
---|
| 4660 | */
|
---|
| 4661 |
|
---|
| 4662 | if((data->set.out)->_handle == NULL) {
|
---|
| 4663 | _fsetmode(stdout, "b");
|
---|
| 4664 | }
|
---|
| 4665 | #endif
|
---|
| 4666 |
|
---|
| 4667 | return result;
|
---|
| 4668 | }
|
---|
| 4669 |
|
---|
| 4670 | CURLcode Curl_connect(struct Curl_easy *data,
|
---|
| 4671 | struct connectdata **in_connect,
|
---|
| 4672 | bool *asyncp,
|
---|
| 4673 | bool *protocol_done)
|
---|
| 4674 | {
|
---|
| 4675 | CURLcode result;
|
---|
| 4676 |
|
---|
| 4677 | *asyncp = FALSE; /* assume synchronous resolves by default */
|
---|
| 4678 |
|
---|
| 4679 | /* call the stuff that needs to be called */
|
---|
| 4680 | result = create_conn(data, in_connect, asyncp);
|
---|
| 4681 |
|
---|
| 4682 | if(!result) {
|
---|
| 4683 | /* no error */
|
---|
| 4684 | if((*in_connect)->send_pipe.size || (*in_connect)->recv_pipe.size)
|
---|
| 4685 | /* pipelining */
|
---|
| 4686 | *protocol_done = TRUE;
|
---|
| 4687 | else if(!*asyncp) {
|
---|
| 4688 | /* DNS resolution is done: that's either because this is a reused
|
---|
| 4689 | connection, in which case DNS was unnecessary, or because DNS
|
---|
| 4690 | really did finish already (synch resolver/fast async resolve) */
|
---|
| 4691 | result = Curl_setup_conn(*in_connect, protocol_done);
|
---|
| 4692 | }
|
---|
| 4693 | }
|
---|
| 4694 |
|
---|
| 4695 | if(result == CURLE_NO_CONNECTION_AVAILABLE) {
|
---|
| 4696 | *in_connect = NULL;
|
---|
| 4697 | return result;
|
---|
| 4698 | }
|
---|
| 4699 |
|
---|
| 4700 | if(result && *in_connect) {
|
---|
| 4701 | /* We're not allowed to return failure with memory left allocated
|
---|
| 4702 | in the connectdata struct, free those here */
|
---|
| 4703 | Curl_disconnect(*in_connect, FALSE); /* close the connection */
|
---|
| 4704 | *in_connect = NULL; /* return a NULL */
|
---|
| 4705 | }
|
---|
| 4706 |
|
---|
| 4707 | return result;
|
---|
| 4708 | }
|
---|
| 4709 |
|
---|
| 4710 | /*
|
---|
| 4711 | * Curl_init_do() inits the readwrite session. This is inited each time (in
|
---|
| 4712 | * the DO function before the protocol-specific DO functions are invoked) for
|
---|
| 4713 | * a transfer, sometimes multiple times on the same Curl_easy. Make sure
|
---|
| 4714 | * nothing in here depends on stuff that are setup dynamically for the
|
---|
| 4715 | * transfer.
|
---|
| 4716 | *
|
---|
| 4717 | * Allow this function to get called with 'conn' set to NULL.
|
---|
| 4718 | */
|
---|
| 4719 |
|
---|
| 4720 | CURLcode Curl_init_do(struct Curl_easy *data, struct connectdata *conn)
|
---|
| 4721 | {
|
---|
| 4722 | struct SingleRequest *k = &data->req;
|
---|
| 4723 |
|
---|
| 4724 | conn->bits.do_more = FALSE; /* by default there's no curl_do_more() to
|
---|
| 4725 | use */
|
---|
| 4726 |
|
---|
| 4727 | data->state.done = FALSE; /* *_done() is not called yet */
|
---|
| 4728 | data->state.expect100header = FALSE;
|
---|
| 4729 |
|
---|
| 4730 | /* if the protocol used doesn't support wildcards, switch it off */
|
---|
| 4731 | if(data->state.wildcardmatch &&
|
---|
| 4732 | !(conn->handler->flags & PROTOPT_WILDCARD))
|
---|
| 4733 | data->state.wildcardmatch = FALSE;
|
---|
| 4734 |
|
---|
| 4735 | if(data->set.opt_no_body)
|
---|
| 4736 | /* in HTTP lingo, no body means using the HEAD request... */
|
---|
| 4737 | data->set.httpreq = HTTPREQ_HEAD;
|
---|
| 4738 | else if(HTTPREQ_HEAD == data->set.httpreq)
|
---|
| 4739 | /* ... but if unset there really is no perfect method that is the
|
---|
| 4740 | "opposite" of HEAD but in reality most people probably think GET
|
---|
| 4741 | then. The important thing is that we can't let it remain HEAD if the
|
---|
| 4742 | opt_no_body is set FALSE since then we'll behave wrong when getting
|
---|
| 4743 | HTTP. */
|
---|
| 4744 | data->set.httpreq = HTTPREQ_GET;
|
---|
| 4745 |
|
---|
| 4746 | k->start = Curl_now(); /* start time */
|
---|
| 4747 | k->now = k->start; /* current time is now */
|
---|
| 4748 | k->header = TRUE; /* assume header */
|
---|
| 4749 |
|
---|
| 4750 | k->bytecount = 0;
|
---|
| 4751 |
|
---|
| 4752 | k->buf = data->state.buffer;
|
---|
| 4753 | k->hbufp = data->state.headerbuff;
|
---|
| 4754 | k->ignorebody = FALSE;
|
---|
| 4755 |
|
---|
| 4756 | Curl_speedinit(data);
|
---|
| 4757 |
|
---|
| 4758 | Curl_pgrsSetUploadCounter(data, 0);
|
---|
| 4759 | Curl_pgrsSetDownloadCounter(data, 0);
|
---|
| 4760 |
|
---|
| 4761 | return CURLE_OK;
|
---|
| 4762 | }
|
---|
| 4763 |
|
---|
| 4764 | /*
|
---|
| 4765 | * get_protocol_family()
|
---|
| 4766 | *
|
---|
| 4767 | * This is used to return the protocol family for a given protocol.
|
---|
| 4768 | *
|
---|
| 4769 | * Parameters:
|
---|
| 4770 | *
|
---|
| 4771 | * protocol [in] - A single bit protocol identifier such as HTTP or HTTPS.
|
---|
| 4772 | *
|
---|
| 4773 | * Returns the family as a single bit protocol identifier.
|
---|
| 4774 | */
|
---|
| 4775 |
|
---|
| 4776 | static unsigned int get_protocol_family(unsigned int protocol)
|
---|
| 4777 | {
|
---|
| 4778 | unsigned int family;
|
---|
| 4779 |
|
---|
| 4780 | switch(protocol) {
|
---|
| 4781 | case CURLPROTO_HTTP:
|
---|
| 4782 | case CURLPROTO_HTTPS:
|
---|
| 4783 | family = CURLPROTO_HTTP;
|
---|
| 4784 | break;
|
---|
| 4785 |
|
---|
| 4786 | case CURLPROTO_FTP:
|
---|
| 4787 | case CURLPROTO_FTPS:
|
---|
| 4788 | family = CURLPROTO_FTP;
|
---|
| 4789 | break;
|
---|
| 4790 |
|
---|
| 4791 | case CURLPROTO_SCP:
|
---|
| 4792 | family = CURLPROTO_SCP;
|
---|
| 4793 | break;
|
---|
| 4794 |
|
---|
| 4795 | case CURLPROTO_SFTP:
|
---|
| 4796 | family = CURLPROTO_SFTP;
|
---|
| 4797 | break;
|
---|
| 4798 |
|
---|
| 4799 | case CURLPROTO_TELNET:
|
---|
| 4800 | family = CURLPROTO_TELNET;
|
---|
| 4801 | break;
|
---|
| 4802 |
|
---|
| 4803 | case CURLPROTO_LDAP:
|
---|
| 4804 | case CURLPROTO_LDAPS:
|
---|
| 4805 | family = CURLPROTO_LDAP;
|
---|
| 4806 | break;
|
---|
| 4807 |
|
---|
| 4808 | case CURLPROTO_DICT:
|
---|
| 4809 | family = CURLPROTO_DICT;
|
---|
| 4810 | break;
|
---|
| 4811 |
|
---|
| 4812 | case CURLPROTO_FILE:
|
---|
| 4813 | family = CURLPROTO_FILE;
|
---|
| 4814 | break;
|
---|
| 4815 |
|
---|
| 4816 | case CURLPROTO_TFTP:
|
---|
| 4817 | family = CURLPROTO_TFTP;
|
---|
| 4818 | break;
|
---|
| 4819 |
|
---|
| 4820 | case CURLPROTO_IMAP:
|
---|
| 4821 | case CURLPROTO_IMAPS:
|
---|
| 4822 | family = CURLPROTO_IMAP;
|
---|
| 4823 | break;
|
---|
| 4824 |
|
---|
| 4825 | case CURLPROTO_POP3:
|
---|
| 4826 | case CURLPROTO_POP3S:
|
---|
| 4827 | family = CURLPROTO_POP3;
|
---|
| 4828 | break;
|
---|
| 4829 |
|
---|
| 4830 | case CURLPROTO_SMTP:
|
---|
| 4831 | case CURLPROTO_SMTPS:
|
---|
| 4832 | family = CURLPROTO_SMTP;
|
---|
| 4833 | break;
|
---|
| 4834 |
|
---|
| 4835 | case CURLPROTO_RTSP:
|
---|
| 4836 | family = CURLPROTO_RTSP;
|
---|
| 4837 | break;
|
---|
| 4838 |
|
---|
| 4839 | case CURLPROTO_RTMP:
|
---|
| 4840 | case CURLPROTO_RTMPS:
|
---|
| 4841 | family = CURLPROTO_RTMP;
|
---|
| 4842 | break;
|
---|
| 4843 |
|
---|
| 4844 | case CURLPROTO_RTMPT:
|
---|
| 4845 | case CURLPROTO_RTMPTS:
|
---|
| 4846 | family = CURLPROTO_RTMPT;
|
---|
| 4847 | break;
|
---|
| 4848 |
|
---|
| 4849 | case CURLPROTO_RTMPE:
|
---|
| 4850 | family = CURLPROTO_RTMPE;
|
---|
| 4851 | break;
|
---|
| 4852 |
|
---|
| 4853 | case CURLPROTO_RTMPTE:
|
---|
| 4854 | family = CURLPROTO_RTMPTE;
|
---|
| 4855 | break;
|
---|
| 4856 |
|
---|
| 4857 | case CURLPROTO_GOPHER:
|
---|
| 4858 | family = CURLPROTO_GOPHER;
|
---|
| 4859 | break;
|
---|
| 4860 |
|
---|
| 4861 | case CURLPROTO_SMB:
|
---|
| 4862 | case CURLPROTO_SMBS:
|
---|
| 4863 | family = CURLPROTO_SMB;
|
---|
| 4864 | break;
|
---|
| 4865 |
|
---|
| 4866 | default:
|
---|
| 4867 | family = 0;
|
---|
| 4868 | break;
|
---|
| 4869 | }
|
---|
| 4870 |
|
---|
| 4871 | return family;
|
---|
| 4872 | }
|
---|