[164] | 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 - 2015, 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 | #if !defined(CURL_DISABLE_LDAP) && !defined(USE_OPENLDAP)
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| 26 |
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| 27 | /*
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| 28 | * Notice that USE_OPENLDAP is only a source code selection switch. When
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| 29 | * libcurl is built with USE_OPENLDAP defined the libcurl source code that
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| 30 | * gets compiled is the code from openldap.c, otherwise the code that gets
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| 31 | * compiled is the code from ldap.c.
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| 32 | *
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| 33 | * When USE_OPENLDAP is defined a recent version of the OpenLDAP library
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| 34 | * might be required for compilation and runtime. In order to use ancient
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| 35 | * OpenLDAP library versions, USE_OPENLDAP shall not be defined.
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| 36 | */
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| 37 |
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| 38 | #ifdef USE_WIN32_LDAP /* Use Windows LDAP implementation. */
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| 39 | # include <winldap.h>
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| 40 | # ifndef LDAP_VENDOR_NAME
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| 41 | # error Your Platform SDK is NOT sufficient for LDAP support! \
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| 42 | Update your Platform SDK, or disable LDAP support!
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| 43 | # else
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| 44 | # include <winber.h>
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| 45 | # endif
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| 46 | #else
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| 47 | # define LDAP_DEPRECATED 1 /* Be sure ldap_init() is defined. */
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| 48 | # ifdef HAVE_LBER_H
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| 49 | # include <lber.h>
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| 50 | # endif
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| 51 | # include <ldap.h>
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| 52 | # if (defined(HAVE_LDAP_SSL) && defined(HAVE_LDAP_SSL_H))
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| 53 | # include <ldap_ssl.h>
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| 54 | # endif /* HAVE_LDAP_SSL && HAVE_LDAP_SSL_H */
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| 55 | #endif
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| 56 |
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| 57 | /* These are macros in both <wincrypt.h> (in above <winldap.h>) and typedefs
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| 58 | * in BoringSSL's <openssl/x509.h>
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| 59 | */
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| 60 | #ifdef HAVE_BORINGSSL
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| 61 | # undef X509_NAME
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| 62 | # undef X509_CERT_PAIR
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| 63 | # undef X509_EXTENSIONS
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| 64 | #endif
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| 65 |
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| 66 | #include "urldata.h"
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| 67 | #include <curl/curl.h>
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| 68 | #include "sendf.h"
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| 69 | #include "escape.h"
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| 70 | #include "progress.h"
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| 71 | #include "transfer.h"
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| 72 | #include "strequal.h"
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| 73 | #include "strtok.h"
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| 74 | #include "curl_ldap.h"
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| 75 | #include "curl_multibyte.h"
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| 76 | #include "curl_base64.h"
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| 77 | #include "rawstr.h"
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| 78 | #include "connect.h"
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| 79 | #include "curl_printf.h"
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| 80 |
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| 81 | /* The last #include files should be: */
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| 82 | #include "curl_memory.h"
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| 83 | #include "memdebug.h"
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| 84 |
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| 85 | #ifndef HAVE_LDAP_URL_PARSE
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| 86 |
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| 87 | /* Use our own implementation. */
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| 88 |
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| 89 | typedef struct {
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| 90 | char *lud_host;
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| 91 | int lud_port;
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| 92 | #if defined(USE_WIN32_LDAP)
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| 93 | TCHAR *lud_dn;
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| 94 | TCHAR **lud_attrs;
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| 95 | #else
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| 96 | char *lud_dn;
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| 97 | char **lud_attrs;
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| 98 | #endif
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| 99 | int lud_scope;
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| 100 | #if defined(USE_WIN32_LDAP)
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| 101 | TCHAR *lud_filter;
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| 102 | #else
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| 103 | char *lud_filter;
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| 104 | #endif
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| 105 | char **lud_exts;
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| 106 | size_t lud_attrs_dups; /* how many were dup'ed, this field is not in the
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| 107 | "real" struct so can only be used in code
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| 108 | without HAVE_LDAP_URL_PARSE defined */
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| 109 | } CURL_LDAPURLDesc;
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| 110 |
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| 111 | #undef LDAPURLDesc
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| 112 | #define LDAPURLDesc CURL_LDAPURLDesc
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| 113 |
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| 114 | static int _ldap_url_parse (const struct connectdata *conn,
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| 115 | LDAPURLDesc **ludp);
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| 116 | static void _ldap_free_urldesc (LDAPURLDesc *ludp);
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| 117 |
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| 118 | #undef ldap_free_urldesc
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| 119 | #define ldap_free_urldesc _ldap_free_urldesc
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| 120 | #endif
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| 121 |
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| 122 | #ifdef DEBUG_LDAP
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| 123 | #define LDAP_TRACE(x) do { \
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| 124 | _ldap_trace ("%u: ", __LINE__); \
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| 125 | _ldap_trace x; \
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| 126 | } WHILE_FALSE
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| 127 |
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| 128 | static void _ldap_trace (const char *fmt, ...);
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| 129 | #else
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| 130 | #define LDAP_TRACE(x) Curl_nop_stmt
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| 131 | #endif
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| 132 |
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| 133 |
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| 134 | static CURLcode Curl_ldap(struct connectdata *conn, bool *done);
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| 135 |
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| 136 | /*
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| 137 | * LDAP protocol handler.
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| 138 | */
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| 139 |
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| 140 | const struct Curl_handler Curl_handler_ldap = {
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| 141 | "LDAP", /* scheme */
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| 142 | ZERO_NULL, /* setup_connection */
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| 143 | Curl_ldap, /* do_it */
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| 144 | ZERO_NULL, /* done */
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| 145 | ZERO_NULL, /* do_more */
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| 146 | ZERO_NULL, /* connect_it */
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| 147 | ZERO_NULL, /* connecting */
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| 148 | ZERO_NULL, /* doing */
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| 149 | ZERO_NULL, /* proto_getsock */
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| 150 | ZERO_NULL, /* doing_getsock */
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| 151 | ZERO_NULL, /* domore_getsock */
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| 152 | ZERO_NULL, /* perform_getsock */
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| 153 | ZERO_NULL, /* disconnect */
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| 154 | ZERO_NULL, /* readwrite */
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| 155 | PORT_LDAP, /* defport */
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| 156 | CURLPROTO_LDAP, /* protocol */
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| 157 | PROTOPT_NONE /* flags */
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| 158 | };
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| 159 |
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| 160 | #ifdef HAVE_LDAP_SSL
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| 161 | /*
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| 162 | * LDAPS protocol handler.
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| 163 | */
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| 164 |
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| 165 | const struct Curl_handler Curl_handler_ldaps = {
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| 166 | "LDAPS", /* scheme */
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| 167 | ZERO_NULL, /* setup_connection */
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| 168 | Curl_ldap, /* do_it */
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| 169 | ZERO_NULL, /* done */
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| 170 | ZERO_NULL, /* do_more */
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| 171 | ZERO_NULL, /* connect_it */
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| 172 | ZERO_NULL, /* connecting */
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| 173 | ZERO_NULL, /* doing */
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| 174 | ZERO_NULL, /* proto_getsock */
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| 175 | ZERO_NULL, /* doing_getsock */
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| 176 | ZERO_NULL, /* domore_getsock */
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| 177 | ZERO_NULL, /* perform_getsock */
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| 178 | ZERO_NULL, /* disconnect */
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| 179 | ZERO_NULL, /* readwrite */
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| 180 | PORT_LDAPS, /* defport */
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| 181 | CURLPROTO_LDAPS, /* protocol */
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| 182 | PROTOPT_SSL /* flags */
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| 183 | };
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| 184 | #endif
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| 185 |
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| 186 |
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| 187 | static CURLcode Curl_ldap(struct connectdata *conn, bool *done)
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| 188 | {
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| 189 | CURLcode result = CURLE_OK;
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| 190 | int rc = 0;
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| 191 | LDAP *server = NULL;
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| 192 | LDAPURLDesc *ludp = NULL;
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| 193 | LDAPMessage *ldapmsg = NULL;
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| 194 | LDAPMessage *entryIterator;
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| 195 | int num = 0;
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| 196 | struct SessionHandle *data=conn->data;
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| 197 | int ldap_proto = LDAP_VERSION3;
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| 198 | int ldap_ssl = 0;
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| 199 | char *val_b64 = NULL;
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| 200 | size_t val_b64_sz = 0;
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| 201 | curl_off_t dlsize = 0;
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| 202 | #ifdef LDAP_OPT_NETWORK_TIMEOUT
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| 203 | struct timeval ldap_timeout = {10, 0}; /* 10 sec connection/search timeout */
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| 204 | #endif
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| 205 | #if defined(USE_WIN32_LDAP)
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| 206 | TCHAR *host = NULL;
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| 207 | TCHAR *user = NULL;
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| 208 | TCHAR *passwd = NULL;
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| 209 | #else
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| 210 | char *host = NULL;
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| 211 | char *user = NULL;
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| 212 | char *passwd = NULL;
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| 213 | #endif
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| 214 |
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| 215 | *done = TRUE; /* unconditionally */
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| 216 | infof(data, "LDAP local: LDAP Vendor = %s ; LDAP Version = %d\n",
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| 217 | LDAP_VENDOR_NAME, LDAP_VENDOR_VERSION);
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| 218 | infof(data, "LDAP local: %s\n", data->change.url);
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| 219 |
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| 220 | #ifdef HAVE_LDAP_URL_PARSE
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| 221 | rc = ldap_url_parse(data->change.url, &ludp);
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| 222 | #else
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| 223 | rc = _ldap_url_parse(conn, &ludp);
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| 224 | #endif
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| 225 | if(rc != 0) {
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| 226 | failf(data, "LDAP local: %s", ldap_err2string(rc));
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| 227 | result = CURLE_LDAP_INVALID_URL;
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| 228 | goto quit;
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| 229 | }
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| 230 |
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| 231 | /* Get the URL scheme ( either ldap or ldaps ) */
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| 232 | if(conn->given->flags & PROTOPT_SSL)
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| 233 | ldap_ssl = 1;
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| 234 | infof(data, "LDAP local: trying to establish %s connection\n",
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| 235 | ldap_ssl ? "encrypted" : "cleartext");
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| 236 |
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| 237 | #if defined(USE_WIN32_LDAP)
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| 238 | host = Curl_convert_UTF8_to_tchar(conn->host.name);
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| 239 | if(!host) {
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| 240 | result = CURLE_OUT_OF_MEMORY;
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| 241 |
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| 242 | goto quit;
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| 243 | }
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| 244 |
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| 245 | if(conn->bits.user_passwd) {
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| 246 | user = Curl_convert_UTF8_to_tchar(conn->user);
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| 247 | passwd = Curl_convert_UTF8_to_tchar(conn->passwd);
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| 248 | if(!user || !passwd) {
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| 249 | result = CURLE_OUT_OF_MEMORY;
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| 250 |
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| 251 | goto quit;
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| 252 | }
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| 253 | }
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| 254 | #else
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| 255 | host = conn->host.name;
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| 256 |
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| 257 | if(conn->bits.user_passwd) {
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| 258 | user = conn->user;
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| 259 | passwd = conn->passwd;
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| 260 | }
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| 261 | #endif
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| 262 |
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| 263 | #ifdef LDAP_OPT_NETWORK_TIMEOUT
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| 264 | ldap_set_option(NULL, LDAP_OPT_NETWORK_TIMEOUT, &ldap_timeout);
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| 265 | #endif
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| 266 | ldap_set_option(NULL, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
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| 267 |
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| 268 | if(ldap_ssl) {
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| 269 | #ifdef HAVE_LDAP_SSL
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| 270 | #ifdef USE_WIN32_LDAP
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| 271 | /* Win32 LDAP SDK doesn't support insecure mode without CA! */
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| 272 | server = ldap_sslinit(host, (int)conn->port, 1);
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| 273 | ldap_set_option(server, LDAP_OPT_SSL, LDAP_OPT_ON);
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| 274 | #else
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| 275 | int ldap_option;
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| 276 | char* ldap_ca = data->set.str[STRING_SSL_CAFILE];
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| 277 | #if defined(CURL_HAS_NOVELL_LDAPSDK)
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| 278 | rc = ldapssl_client_init(NULL, NULL);
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| 279 | if(rc != LDAP_SUCCESS) {
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| 280 | failf(data, "LDAP local: ldapssl_client_init %s", ldap_err2string(rc));
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| 281 | result = CURLE_SSL_CERTPROBLEM;
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| 282 | goto quit;
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| 283 | }
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| 284 | if(data->set.ssl.verifypeer) {
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| 285 | /* Novell SDK supports DER or BASE64 files. */
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| 286 | int cert_type = LDAPSSL_CERT_FILETYPE_B64;
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| 287 | if((data->set.str[STRING_CERT_TYPE]) &&
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| 288 | (Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "DER")))
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| 289 | cert_type = LDAPSSL_CERT_FILETYPE_DER;
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| 290 | if(!ldap_ca) {
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| 291 | failf(data, "LDAP local: ERROR %s CA cert not set!",
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| 292 | (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"));
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| 293 | result = CURLE_SSL_CERTPROBLEM;
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| 294 | goto quit;
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| 295 | }
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| 296 | infof(data, "LDAP local: using %s CA cert '%s'\n",
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| 297 | (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
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| 298 | ldap_ca);
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| 299 | rc = ldapssl_add_trusted_cert(ldap_ca, cert_type);
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| 300 | if(rc != LDAP_SUCCESS) {
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| 301 | failf(data, "LDAP local: ERROR setting %s CA cert: %s",
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| 302 | (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
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| 303 | ldap_err2string(rc));
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| 304 | result = CURLE_SSL_CERTPROBLEM;
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| 305 | goto quit;
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| 306 | }
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| 307 | ldap_option = LDAPSSL_VERIFY_SERVER;
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| 308 | }
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| 309 | else
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| 310 | ldap_option = LDAPSSL_VERIFY_NONE;
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| 311 | rc = ldapssl_set_verify_mode(ldap_option);
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| 312 | if(rc != LDAP_SUCCESS) {
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| 313 | failf(data, "LDAP local: ERROR setting cert verify mode: %s",
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| 314 | ldap_err2string(rc));
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| 315 | result = CURLE_SSL_CERTPROBLEM;
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| 316 | goto quit;
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| 317 | }
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| 318 | server = ldapssl_init(host, (int)conn->port, 1);
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| 319 | if(server == NULL) {
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| 320 | failf(data, "LDAP local: Cannot connect to %s:%ld",
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| 321 | conn->host.dispname, conn->port);
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| 322 | result = CURLE_COULDNT_CONNECT;
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| 323 | goto quit;
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| 324 | }
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| 325 | #elif defined(LDAP_OPT_X_TLS)
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| 326 | if(data->set.ssl.verifypeer) {
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| 327 | /* OpenLDAP SDK supports BASE64 files. */
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| 328 | if((data->set.str[STRING_CERT_TYPE]) &&
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| 329 | (!Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "PEM"))) {
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| 330 | failf(data, "LDAP local: ERROR OpenLDAP only supports PEM cert-type!");
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| 331 | result = CURLE_SSL_CERTPROBLEM;
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| 332 | goto quit;
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| 333 | }
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| 334 | if(!ldap_ca) {
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| 335 | failf(data, "LDAP local: ERROR PEM CA cert not set!");
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| 336 | result = CURLE_SSL_CERTPROBLEM;
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| 337 | goto quit;
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| 338 | }
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| 339 | infof(data, "LDAP local: using PEM CA cert: %s\n", ldap_ca);
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| 340 | rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_CACERTFILE, ldap_ca);
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| 341 | if(rc != LDAP_SUCCESS) {
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| 342 | failf(data, "LDAP local: ERROR setting PEM CA cert: %s",
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| 343 | ldap_err2string(rc));
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| 344 | result = CURLE_SSL_CERTPROBLEM;
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| 345 | goto quit;
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| 346 | }
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| 347 | ldap_option = LDAP_OPT_X_TLS_DEMAND;
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| 348 | }
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| 349 | else
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| 350 | ldap_option = LDAP_OPT_X_TLS_NEVER;
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| 351 |
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| 352 | rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_REQUIRE_CERT, &ldap_option);
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| 353 | if(rc != LDAP_SUCCESS) {
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| 354 | failf(data, "LDAP local: ERROR setting cert verify mode: %s",
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| 355 | ldap_err2string(rc));
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| 356 | result = CURLE_SSL_CERTPROBLEM;
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| 357 | goto quit;
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| 358 | }
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| 359 | server = ldap_init(host, (int)conn->port);
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| 360 | if(server == NULL) {
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| 361 | failf(data, "LDAP local: Cannot connect to %s:%ld",
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| 362 | conn->host.dispname, conn->port);
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| 363 | result = CURLE_COULDNT_CONNECT;
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| 364 | goto quit;
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| 365 | }
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| 366 | ldap_option = LDAP_OPT_X_TLS_HARD;
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| 367 | rc = ldap_set_option(server, LDAP_OPT_X_TLS, &ldap_option);
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| 368 | if(rc != LDAP_SUCCESS) {
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| 369 | failf(data, "LDAP local: ERROR setting SSL/TLS mode: %s",
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| 370 | ldap_err2string(rc));
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| 371 | result = CURLE_SSL_CERTPROBLEM;
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| 372 | goto quit;
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| 373 | }
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| 374 | /*
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| 375 | rc = ldap_start_tls_s(server, NULL, NULL);
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| 376 | if(rc != LDAP_SUCCESS) {
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| 377 | failf(data, "LDAP local: ERROR starting SSL/TLS mode: %s",
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| 378 | ldap_err2string(rc));
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| 379 | result = CURLE_SSL_CERTPROBLEM;
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| 380 | goto quit;
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| 381 | }
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| 382 | */
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| 383 | #else
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| 384 | /* we should probably never come up to here since configure
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| 385 | should check in first place if we can support LDAP SSL/TLS */
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| 386 | failf(data, "LDAP local: SSL/TLS not supported with this version "
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| 387 | "of the OpenLDAP toolkit\n");
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| 388 | result = CURLE_SSL_CERTPROBLEM;
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| 389 | goto quit;
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| 390 | #endif
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| 391 | #endif
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| 392 | #endif /* CURL_LDAP_USE_SSL */
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| 393 | }
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| 394 | else {
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| 395 | server = ldap_init(host, (int)conn->port);
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| 396 | if(server == NULL) {
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| 397 | failf(data, "LDAP local: Cannot connect to %s:%ld",
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| 398 | conn->host.dispname, conn->port);
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| 399 | result = CURLE_COULDNT_CONNECT;
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| 400 | goto quit;
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| 401 | }
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| 402 | }
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| 403 | #ifdef USE_WIN32_LDAP
|
---|
| 404 | ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
|
---|
| 405 | #endif
|
---|
| 406 |
|
---|
| 407 | rc = ldap_simple_bind_s(server, user, passwd);
|
---|
| 408 | if(!ldap_ssl && rc != 0) {
|
---|
| 409 | ldap_proto = LDAP_VERSION2;
|
---|
| 410 | ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
|
---|
| 411 | rc = ldap_simple_bind_s(server, user, passwd);
|
---|
| 412 | }
|
---|
| 413 | if(rc != 0) {
|
---|
| 414 | failf(data, "LDAP local: ldap_simple_bind_s %s", ldap_err2string(rc));
|
---|
| 415 | result = CURLE_LDAP_CANNOT_BIND;
|
---|
| 416 | goto quit;
|
---|
| 417 | }
|
---|
| 418 |
|
---|
| 419 | rc = ldap_search_s(server, ludp->lud_dn, ludp->lud_scope,
|
---|
| 420 | ludp->lud_filter, ludp->lud_attrs, 0, &ldapmsg);
|
---|
| 421 |
|
---|
| 422 | if(rc != 0 && rc != LDAP_SIZELIMIT_EXCEEDED) {
|
---|
| 423 | failf(data, "LDAP remote: %s", ldap_err2string(rc));
|
---|
| 424 | result = CURLE_LDAP_SEARCH_FAILED;
|
---|
| 425 | goto quit;
|
---|
| 426 | }
|
---|
| 427 |
|
---|
| 428 | for(num = 0, entryIterator = ldap_first_entry(server, ldapmsg);
|
---|
| 429 | entryIterator;
|
---|
| 430 | entryIterator = ldap_next_entry(server, entryIterator), num++) {
|
---|
| 431 | BerElement *ber = NULL;
|
---|
| 432 | #if defined(USE_WIN32_LDAP)
|
---|
| 433 | TCHAR *attribute;
|
---|
| 434 | #else
|
---|
| 435 | char *attribute; /*! suspicious that this isn't 'const' */
|
---|
| 436 | #endif
|
---|
| 437 | int i;
|
---|
| 438 |
|
---|
| 439 | /* Get the DN and write it to the client */
|
---|
| 440 | {
|
---|
| 441 | char *name;
|
---|
| 442 | size_t name_len;
|
---|
| 443 | #if defined(USE_WIN32_LDAP)
|
---|
| 444 | TCHAR *dn = ldap_get_dn(server, entryIterator);
|
---|
| 445 | name = Curl_convert_tchar_to_UTF8(dn);
|
---|
| 446 | if(!name) {
|
---|
| 447 | ldap_memfree(dn);
|
---|
| 448 |
|
---|
| 449 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 450 |
|
---|
| 451 | goto quit;
|
---|
| 452 | }
|
---|
| 453 | #else
|
---|
| 454 | char *dn = name = ldap_get_dn(server, entryIterator);
|
---|
| 455 | #endif
|
---|
| 456 | name_len = strlen(name);
|
---|
| 457 |
|
---|
| 458 | result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"DN: ", 4);
|
---|
| 459 | if(result) {
|
---|
| 460 | #if defined(USE_WIN32_LDAP)
|
---|
| 461 | Curl_unicodefree(name);
|
---|
| 462 | #endif
|
---|
| 463 | ldap_memfree(dn);
|
---|
| 464 |
|
---|
| 465 | goto quit;
|
---|
| 466 | }
|
---|
| 467 |
|
---|
| 468 | result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *) name,
|
---|
| 469 | name_len);
|
---|
| 470 | if(result) {
|
---|
| 471 | #if defined(USE_WIN32_LDAP)
|
---|
| 472 | Curl_unicodefree(name);
|
---|
| 473 | #endif
|
---|
| 474 | ldap_memfree(dn);
|
---|
| 475 |
|
---|
| 476 | goto quit;
|
---|
| 477 | }
|
---|
| 478 |
|
---|
| 479 | result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
|
---|
| 480 | if(result) {
|
---|
| 481 | #if defined(USE_WIN32_LDAP)
|
---|
| 482 | Curl_unicodefree(name);
|
---|
| 483 | #endif
|
---|
| 484 | ldap_memfree(dn);
|
---|
| 485 |
|
---|
| 486 | goto quit;
|
---|
| 487 | }
|
---|
| 488 |
|
---|
| 489 | dlsize += name_len + 5;
|
---|
| 490 |
|
---|
| 491 | #if defined(USE_WIN32_LDAP)
|
---|
| 492 | Curl_unicodefree(name);
|
---|
| 493 | #endif
|
---|
| 494 | ldap_memfree(dn);
|
---|
| 495 | }
|
---|
| 496 |
|
---|
| 497 | /* Get the attributes and write them to the client */
|
---|
| 498 | for(attribute = ldap_first_attribute(server, entryIterator, &ber);
|
---|
| 499 | attribute;
|
---|
| 500 | attribute = ldap_next_attribute(server, entryIterator, ber)) {
|
---|
| 501 | BerValue **vals;
|
---|
| 502 | size_t attr_len;
|
---|
| 503 | #if defined(USE_WIN32_LDAP)
|
---|
| 504 | char *attr = Curl_convert_tchar_to_UTF8(attribute);
|
---|
| 505 | if(!attr) {
|
---|
| 506 | if(ber)
|
---|
| 507 | ber_free(ber, 0);
|
---|
| 508 |
|
---|
| 509 | result = CURLE_OUT_OF_MEMORY;
|
---|
| 510 |
|
---|
| 511 | goto quit;
|
---|
| 512 | }
|
---|
| 513 | #else
|
---|
| 514 | char *attr = attribute;
|
---|
| 515 | #endif
|
---|
| 516 | attr_len = strlen(attr);
|
---|
| 517 |
|
---|
| 518 | vals = ldap_get_values_len(server, entryIterator, attribute);
|
---|
| 519 | if(vals != NULL) {
|
---|
| 520 | for(i = 0; (vals[i] != NULL); i++) {
|
---|
| 521 | result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\t", 1);
|
---|
| 522 | if(result) {
|
---|
| 523 | ldap_value_free_len(vals);
|
---|
| 524 | #if defined(USE_WIN32_LDAP)
|
---|
| 525 | Curl_unicodefree(attr);
|
---|
| 526 | #endif
|
---|
| 527 | ldap_memfree(attribute);
|
---|
| 528 | if(ber)
|
---|
| 529 | ber_free(ber, 0);
|
---|
| 530 |
|
---|
| 531 | goto quit;
|
---|
| 532 | }
|
---|
| 533 |
|
---|
| 534 | result = Curl_client_write(conn, CLIENTWRITE_BODY,
|
---|
| 535 | (char *) attr, attr_len);
|
---|
| 536 | if(result) {
|
---|
| 537 | ldap_value_free_len(vals);
|
---|
| 538 | #if defined(USE_WIN32_LDAP)
|
---|
| 539 | Curl_unicodefree(attr);
|
---|
| 540 | #endif
|
---|
| 541 | ldap_memfree(attribute);
|
---|
| 542 | if(ber)
|
---|
| 543 | ber_free(ber, 0);
|
---|
| 544 |
|
---|
| 545 | goto quit;
|
---|
| 546 | }
|
---|
| 547 |
|
---|
| 548 | result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)": ", 2);
|
---|
| 549 | if(result) {
|
---|
| 550 | ldap_value_free_len(vals);
|
---|
| 551 | #if defined(USE_WIN32_LDAP)
|
---|
| 552 | Curl_unicodefree(attr);
|
---|
| 553 | #endif
|
---|
| 554 | ldap_memfree(attribute);
|
---|
| 555 | if(ber)
|
---|
| 556 | ber_free(ber, 0);
|
---|
| 557 |
|
---|
| 558 | goto quit;
|
---|
| 559 | }
|
---|
| 560 |
|
---|
| 561 | dlsize += attr_len + 3;
|
---|
| 562 |
|
---|
| 563 | if((attr_len > 7) &&
|
---|
| 564 | (strcmp(";binary", (char *) attr + (attr_len - 7)) == 0)) {
|
---|
| 565 | /* Binary attribute, encode to base64. */
|
---|
| 566 | result = Curl_base64_encode(data,
|
---|
| 567 | vals[i]->bv_val,
|
---|
| 568 | vals[i]->bv_len,
|
---|
| 569 | &val_b64,
|
---|
| 570 | &val_b64_sz);
|
---|
| 571 | if(result) {
|
---|
| 572 | ldap_value_free_len(vals);
|
---|
| 573 | #if defined(USE_WIN32_LDAP)
|
---|
| 574 | Curl_unicodefree(attr);
|
---|
| 575 | #endif
|
---|
| 576 | ldap_memfree(attribute);
|
---|
| 577 | if(ber)
|
---|
| 578 | ber_free(ber, 0);
|
---|
| 579 |
|
---|
| 580 | goto quit;
|
---|
| 581 | }
|
---|
| 582 |
|
---|
| 583 | if(val_b64_sz > 0) {
|
---|
| 584 | result = Curl_client_write(conn, CLIENTWRITE_BODY, val_b64,
|
---|
| 585 | val_b64_sz);
|
---|
| 586 | free(val_b64);
|
---|
| 587 | if(result) {
|
---|
| 588 | ldap_value_free_len(vals);
|
---|
| 589 | #if defined(USE_WIN32_LDAP)
|
---|
| 590 | Curl_unicodefree(attr);
|
---|
| 591 | #endif
|
---|
| 592 | ldap_memfree(attribute);
|
---|
| 593 | if(ber)
|
---|
| 594 | ber_free(ber, 0);
|
---|
| 595 |
|
---|
| 596 | goto quit;
|
---|
| 597 | }
|
---|
| 598 |
|
---|
| 599 | dlsize += val_b64_sz;
|
---|
| 600 | }
|
---|
| 601 | }
|
---|
| 602 | else {
|
---|
| 603 | result = Curl_client_write(conn, CLIENTWRITE_BODY, vals[i]->bv_val,
|
---|
| 604 | vals[i]->bv_len);
|
---|
| 605 | if(result) {
|
---|
| 606 | ldap_value_free_len(vals);
|
---|
| 607 | #if defined(USE_WIN32_LDAP)
|
---|
| 608 | Curl_unicodefree(attr);
|
---|
| 609 | #endif
|
---|
| 610 | ldap_memfree(attribute);
|
---|
| 611 | if(ber)
|
---|
| 612 | ber_free(ber, 0);
|
---|
| 613 |
|
---|
| 614 | goto quit;
|
---|
| 615 | }
|
---|
| 616 |
|
---|
| 617 | dlsize += vals[i]->bv_len;
|
---|
| 618 | }
|
---|
| 619 |
|
---|
| 620 | result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
|
---|
| 621 | if(result) {
|
---|
| 622 | ldap_value_free_len(vals);
|
---|
| 623 | #if defined(USE_WIN32_LDAP)
|
---|
| 624 | Curl_unicodefree(attr);
|
---|
| 625 | #endif
|
---|
| 626 | ldap_memfree(attribute);
|
---|
| 627 | if(ber)
|
---|
| 628 | ber_free(ber, 0);
|
---|
| 629 |
|
---|
| 630 | goto quit;
|
---|
| 631 | }
|
---|
| 632 |
|
---|
| 633 | dlsize++;
|
---|
| 634 | }
|
---|
| 635 |
|
---|
| 636 | /* Free memory used to store values */
|
---|
| 637 | ldap_value_free_len(vals);
|
---|
| 638 | }
|
---|
| 639 |
|
---|
| 640 | /* Free the attribute as we are done with it */
|
---|
| 641 | #if defined(USE_WIN32_LDAP)
|
---|
| 642 | Curl_unicodefree(attr);
|
---|
| 643 | #endif
|
---|
| 644 | ldap_memfree(attribute);
|
---|
| 645 |
|
---|
| 646 | result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
|
---|
| 647 | if(result)
|
---|
| 648 | goto quit;
|
---|
| 649 | dlsize++;
|
---|
| 650 | Curl_pgrsSetDownloadCounter(data, dlsize);
|
---|
| 651 | }
|
---|
| 652 |
|
---|
| 653 | if(ber)
|
---|
| 654 | ber_free(ber, 0);
|
---|
| 655 | }
|
---|
| 656 |
|
---|
| 657 | quit:
|
---|
| 658 | if(ldapmsg) {
|
---|
| 659 | ldap_msgfree(ldapmsg);
|
---|
| 660 | LDAP_TRACE (("Received %d entries\n", num));
|
---|
| 661 | }
|
---|
| 662 | if(rc == LDAP_SIZELIMIT_EXCEEDED)
|
---|
| 663 | infof(data, "There are more than %d entries\n", num);
|
---|
| 664 | if(ludp)
|
---|
| 665 | ldap_free_urldesc(ludp);
|
---|
| 666 | if(server)
|
---|
| 667 | ldap_unbind_s(server);
|
---|
| 668 | #if defined(HAVE_LDAP_SSL) && defined(CURL_HAS_NOVELL_LDAPSDK)
|
---|
| 669 | if(ldap_ssl)
|
---|
| 670 | ldapssl_client_deinit();
|
---|
| 671 | #endif /* HAVE_LDAP_SSL && CURL_HAS_NOVELL_LDAPSDK */
|
---|
| 672 |
|
---|
| 673 | #if defined(USE_WIN32_LDAP)
|
---|
| 674 | Curl_unicodefree(passwd);
|
---|
| 675 | Curl_unicodefree(user);
|
---|
| 676 | Curl_unicodefree(host);
|
---|
| 677 | #endif
|
---|
| 678 |
|
---|
| 679 | /* no data to transfer */
|
---|
| 680 | Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
|
---|
| 681 | connclose(conn, "LDAP connection always disable re-use");
|
---|
| 682 |
|
---|
| 683 | return result;
|
---|
| 684 | }
|
---|
| 685 |
|
---|
| 686 | #ifdef DEBUG_LDAP
|
---|
| 687 | static void _ldap_trace (const char *fmt, ...)
|
---|
| 688 | {
|
---|
| 689 | static int do_trace = -1;
|
---|
| 690 | va_list args;
|
---|
| 691 |
|
---|
| 692 | if(do_trace == -1) {
|
---|
| 693 | const char *env = getenv("CURL_TRACE");
|
---|
| 694 | do_trace = (env && strtol(env, NULL, 10) > 0);
|
---|
| 695 | }
|
---|
| 696 | if(!do_trace)
|
---|
| 697 | return;
|
---|
| 698 |
|
---|
| 699 | va_start (args, fmt);
|
---|
| 700 | vfprintf (stderr, fmt, args);
|
---|
| 701 | va_end (args);
|
---|
| 702 | }
|
---|
| 703 | #endif
|
---|
| 704 |
|
---|
| 705 | #ifndef HAVE_LDAP_URL_PARSE
|
---|
| 706 |
|
---|
| 707 | /*
|
---|
| 708 | * Return scope-value for a scope-string.
|
---|
| 709 | */
|
---|
| 710 | static int str2scope (const char *p)
|
---|
| 711 | {
|
---|
| 712 | if(strequal(p, "one"))
|
---|
| 713 | return LDAP_SCOPE_ONELEVEL;
|
---|
| 714 | if(strequal(p, "onetree"))
|
---|
| 715 | return LDAP_SCOPE_ONELEVEL;
|
---|
| 716 | if(strequal(p, "base"))
|
---|
| 717 | return LDAP_SCOPE_BASE;
|
---|
| 718 | if(strequal(p, "sub"))
|
---|
| 719 | return LDAP_SCOPE_SUBTREE;
|
---|
| 720 | if(strequal( p, "subtree"))
|
---|
| 721 | return LDAP_SCOPE_SUBTREE;
|
---|
| 722 | return (-1);
|
---|
| 723 | }
|
---|
| 724 |
|
---|
| 725 | /*
|
---|
| 726 | * Split 'str' into strings separated by commas.
|
---|
| 727 | * Note: out[] points into 'str'.
|
---|
| 728 | */
|
---|
| 729 | static bool split_str(char *str, char ***out, size_t *count)
|
---|
| 730 | {
|
---|
| 731 | char **res;
|
---|
| 732 | char *lasts;
|
---|
| 733 | char *s;
|
---|
| 734 | size_t i;
|
---|
| 735 | size_t items = 1;
|
---|
| 736 |
|
---|
| 737 | s = strchr(str, ',');
|
---|
| 738 | while(s) {
|
---|
| 739 | items++;
|
---|
| 740 | s = strchr(++s, ',');
|
---|
| 741 | }
|
---|
| 742 |
|
---|
| 743 | res = calloc(items, sizeof(char *));
|
---|
| 744 | if(!res)
|
---|
| 745 | return FALSE;
|
---|
| 746 |
|
---|
| 747 | for(i = 0, s = strtok_r(str, ",", &lasts); s && i < items;
|
---|
| 748 | s = strtok_r(NULL, ",", &lasts), i++)
|
---|
| 749 | res[i] = s;
|
---|
| 750 |
|
---|
| 751 | *out = res;
|
---|
| 752 | *count = items;
|
---|
| 753 |
|
---|
| 754 | return TRUE;
|
---|
| 755 | }
|
---|
| 756 |
|
---|
| 757 | /*
|
---|
| 758 | * Break apart the pieces of an LDAP URL.
|
---|
| 759 | * Syntax:
|
---|
| 760 | * ldap://<hostname>:<port>/<base_dn>?<attributes>?<scope>?<filter>?<ext>
|
---|
| 761 | *
|
---|
| 762 | * <hostname> already known from 'conn->host.name'.
|
---|
| 763 | * <port> already known from 'conn->remote_port'.
|
---|
| 764 | * extract the rest from 'conn->data->state.path+1'. All fields are optional.
|
---|
| 765 | * e.g.
|
---|
| 766 | * ldap://<hostname>:<port>/?<attributes>?<scope>?<filter>
|
---|
| 767 | * yields ludp->lud_dn = "".
|
---|
| 768 | *
|
---|
| 769 | * Defined in RFC4516 section 2.
|
---|
| 770 | */
|
---|
| 771 | static int _ldap_url_parse2 (const struct connectdata *conn, LDAPURLDesc *ludp)
|
---|
| 772 | {
|
---|
| 773 | int rc = LDAP_SUCCESS;
|
---|
| 774 | char *path;
|
---|
| 775 | char *p;
|
---|
| 776 | char *q;
|
---|
| 777 | size_t i;
|
---|
| 778 |
|
---|
| 779 | if(!conn->data ||
|
---|
| 780 | !conn->data->state.path ||
|
---|
| 781 | conn->data->state.path[0] != '/' ||
|
---|
| 782 | !checkprefix("LDAP", conn->data->change.url))
|
---|
| 783 | return LDAP_INVALID_SYNTAX;
|
---|
| 784 |
|
---|
| 785 | ludp->lud_scope = LDAP_SCOPE_BASE;
|
---|
| 786 | ludp->lud_port = conn->remote_port;
|
---|
| 787 | ludp->lud_host = conn->host.name;
|
---|
| 788 |
|
---|
| 789 | /* Duplicate the path */
|
---|
| 790 | p = path = strdup(conn->data->state.path + 1);
|
---|
| 791 | if(!path)
|
---|
| 792 | return LDAP_NO_MEMORY;
|
---|
| 793 |
|
---|
| 794 | /* Parse the DN (Distinguished Name) */
|
---|
| 795 | q = strchr(p, '?');
|
---|
| 796 | if(q)
|
---|
| 797 | *q++ = '\0';
|
---|
| 798 |
|
---|
| 799 | if(*p) {
|
---|
| 800 | char *dn = p;
|
---|
| 801 | char *unescaped;
|
---|
| 802 |
|
---|
| 803 | LDAP_TRACE (("DN '%s'\n", dn));
|
---|
| 804 |
|
---|
| 805 | /* Unescape the DN */
|
---|
| 806 | unescaped = curl_easy_unescape(conn->data, dn, 0, NULL);
|
---|
| 807 | if(!unescaped) {
|
---|
| 808 | rc = LDAP_NO_MEMORY;
|
---|
| 809 |
|
---|
| 810 | goto quit;
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 | #if defined(USE_WIN32_LDAP)
|
---|
| 814 | /* Convert the unescaped string to a tchar */
|
---|
| 815 | ludp->lud_dn = Curl_convert_UTF8_to_tchar(unescaped);
|
---|
| 816 |
|
---|
| 817 | /* Free the unescaped string as we are done with it */
|
---|
| 818 | Curl_unicodefree(unescaped);
|
---|
| 819 |
|
---|
| 820 | if(!ludp->lud_dn) {
|
---|
| 821 | rc = LDAP_NO_MEMORY;
|
---|
| 822 |
|
---|
| 823 | goto quit;
|
---|
| 824 | }
|
---|
| 825 | #else
|
---|
| 826 | ludp->lud_dn = unescaped;
|
---|
| 827 | #endif
|
---|
| 828 | }
|
---|
| 829 |
|
---|
| 830 | p = q;
|
---|
| 831 | if(!p)
|
---|
| 832 | goto quit;
|
---|
| 833 |
|
---|
| 834 | /* Parse the attributes. skip "??" */
|
---|
| 835 | q = strchr(p, '?');
|
---|
| 836 | if(q)
|
---|
| 837 | *q++ = '\0';
|
---|
| 838 |
|
---|
| 839 | if(*p) {
|
---|
| 840 | char **attributes;
|
---|
| 841 | size_t count = 0;
|
---|
| 842 |
|
---|
| 843 | /* Split the string into an array of attributes */
|
---|
| 844 | if(!split_str(p, &attributes, &count)) {
|
---|
| 845 | rc = LDAP_NO_MEMORY;
|
---|
| 846 |
|
---|
| 847 | goto quit;
|
---|
| 848 | }
|
---|
| 849 |
|
---|
| 850 | /* Allocate our array (+1 for the NULL entry) */
|
---|
| 851 | #if defined(USE_WIN32_LDAP)
|
---|
| 852 | ludp->lud_attrs = calloc(count + 1, sizeof(TCHAR *));
|
---|
| 853 | #else
|
---|
| 854 | ludp->lud_attrs = calloc(count + 1, sizeof(char *));
|
---|
| 855 | #endif
|
---|
| 856 | if(!ludp->lud_attrs) {
|
---|
| 857 | free(attributes);
|
---|
| 858 |
|
---|
| 859 | rc = LDAP_NO_MEMORY;
|
---|
| 860 |
|
---|
| 861 | goto quit;
|
---|
| 862 | }
|
---|
| 863 |
|
---|
| 864 | for(i = 0; i < count; i++) {
|
---|
| 865 | char *unescaped;
|
---|
| 866 |
|
---|
| 867 | LDAP_TRACE (("attr[%d] '%s'\n", i, attributes[i]));
|
---|
| 868 |
|
---|
| 869 | /* Unescape the attribute */
|
---|
| 870 | unescaped = curl_easy_unescape(conn->data, attributes[i], 0, NULL);
|
---|
| 871 | if(!unescaped) {
|
---|
| 872 | free(attributes);
|
---|
| 873 |
|
---|
| 874 | rc = LDAP_NO_MEMORY;
|
---|
| 875 |
|
---|
| 876 | goto quit;
|
---|
| 877 | }
|
---|
| 878 |
|
---|
| 879 | #if defined(USE_WIN32_LDAP)
|
---|
| 880 | /* Convert the unescaped string to a tchar */
|
---|
| 881 | ludp->lud_attrs[i] = Curl_convert_UTF8_to_tchar(unescaped);
|
---|
| 882 |
|
---|
| 883 | /* Free the unescaped string as we are done with it */
|
---|
| 884 | Curl_unicodefree(unescaped);
|
---|
| 885 |
|
---|
| 886 | if(!ludp->lud_attrs[i]) {
|
---|
| 887 | free(attributes);
|
---|
| 888 |
|
---|
| 889 | rc = LDAP_NO_MEMORY;
|
---|
| 890 |
|
---|
| 891 | goto quit;
|
---|
| 892 | }
|
---|
| 893 | #else
|
---|
| 894 | ludp->lud_attrs[i] = unescaped;
|
---|
| 895 | #endif
|
---|
| 896 |
|
---|
| 897 | ludp->lud_attrs_dups++;
|
---|
| 898 | }
|
---|
| 899 |
|
---|
| 900 | free(attributes);
|
---|
| 901 | }
|
---|
| 902 |
|
---|
| 903 | p = q;
|
---|
| 904 | if(!p)
|
---|
| 905 | goto quit;
|
---|
| 906 |
|
---|
| 907 | /* Parse the scope. skip "??" */
|
---|
| 908 | q = strchr(p, '?');
|
---|
| 909 | if(q)
|
---|
| 910 | *q++ = '\0';
|
---|
| 911 |
|
---|
| 912 | if(*p) {
|
---|
| 913 | ludp->lud_scope = str2scope(p);
|
---|
| 914 | if(ludp->lud_scope == -1) {
|
---|
| 915 | rc = LDAP_INVALID_SYNTAX;
|
---|
| 916 |
|
---|
| 917 | goto quit;
|
---|
| 918 | }
|
---|
| 919 | LDAP_TRACE (("scope %d\n", ludp->lud_scope));
|
---|
| 920 | }
|
---|
| 921 |
|
---|
| 922 | p = q;
|
---|
| 923 | if(!p)
|
---|
| 924 | goto quit;
|
---|
| 925 |
|
---|
| 926 | /* Parse the filter */
|
---|
| 927 | q = strchr(p, '?');
|
---|
| 928 | if(q)
|
---|
| 929 | *q++ = '\0';
|
---|
| 930 |
|
---|
| 931 | if(*p) {
|
---|
| 932 | char *filter = p;
|
---|
| 933 | char *unescaped;
|
---|
| 934 |
|
---|
| 935 | LDAP_TRACE (("filter '%s'\n", filter));
|
---|
| 936 |
|
---|
| 937 | /* Unescape the filter */
|
---|
| 938 | unescaped = curl_easy_unescape(conn->data, filter, 0, NULL);
|
---|
| 939 | if(!unescaped) {
|
---|
| 940 | rc = LDAP_NO_MEMORY;
|
---|
| 941 |
|
---|
| 942 | goto quit;
|
---|
| 943 | }
|
---|
| 944 |
|
---|
| 945 | #if defined(USE_WIN32_LDAP)
|
---|
| 946 | /* Convert the unescaped string to a tchar */
|
---|
| 947 | ludp->lud_filter = Curl_convert_UTF8_to_tchar(unescaped);
|
---|
| 948 |
|
---|
| 949 | /* Free the unescaped string as we are done with it */
|
---|
| 950 | Curl_unicodefree(unescaped);
|
---|
| 951 |
|
---|
| 952 | if(!ludp->lud_filter) {
|
---|
| 953 | rc = LDAP_NO_MEMORY;
|
---|
| 954 |
|
---|
| 955 | goto quit;
|
---|
| 956 | }
|
---|
| 957 | #else
|
---|
| 958 | ludp->lud_filter = unescaped;
|
---|
| 959 | #endif
|
---|
| 960 | }
|
---|
| 961 |
|
---|
| 962 | p = q;
|
---|
| 963 | if(p && !*p) {
|
---|
| 964 | rc = LDAP_INVALID_SYNTAX;
|
---|
| 965 |
|
---|
| 966 | goto quit;
|
---|
| 967 | }
|
---|
| 968 |
|
---|
| 969 | quit:
|
---|
| 970 | free(path);
|
---|
| 971 |
|
---|
| 972 | return rc;
|
---|
| 973 | }
|
---|
| 974 |
|
---|
| 975 | static int _ldap_url_parse (const struct connectdata *conn,
|
---|
| 976 | LDAPURLDesc **ludpp)
|
---|
| 977 | {
|
---|
| 978 | LDAPURLDesc *ludp = calloc(1, sizeof(*ludp));
|
---|
| 979 | int rc;
|
---|
| 980 |
|
---|
| 981 | *ludpp = NULL;
|
---|
| 982 | if(!ludp)
|
---|
| 983 | return LDAP_NO_MEMORY;
|
---|
| 984 |
|
---|
| 985 | rc = _ldap_url_parse2 (conn, ludp);
|
---|
| 986 | if(rc != LDAP_SUCCESS) {
|
---|
| 987 | _ldap_free_urldesc(ludp);
|
---|
| 988 | ludp = NULL;
|
---|
| 989 | }
|
---|
| 990 | *ludpp = ludp;
|
---|
| 991 | return (rc);
|
---|
| 992 | }
|
---|
| 993 |
|
---|
| 994 | static void _ldap_free_urldesc (LDAPURLDesc *ludp)
|
---|
| 995 | {
|
---|
| 996 | size_t i;
|
---|
| 997 |
|
---|
| 998 | if(!ludp)
|
---|
| 999 | return;
|
---|
| 1000 |
|
---|
| 1001 | free(ludp->lud_dn);
|
---|
| 1002 | free(ludp->lud_filter);
|
---|
| 1003 |
|
---|
| 1004 | if(ludp->lud_attrs) {
|
---|
| 1005 | for(i = 0; i < ludp->lud_attrs_dups; i++)
|
---|
| 1006 | free(ludp->lud_attrs[i]);
|
---|
| 1007 | free(ludp->lud_attrs);
|
---|
| 1008 | }
|
---|
| 1009 |
|
---|
| 1010 | free (ludp);
|
---|
| 1011 | }
|
---|
| 1012 | #endif /* !HAVE_LDAP_URL_PARSE */
|
---|
| 1013 | #endif /* !CURL_DISABLE_LDAP && !USE_OPENLDAP */
|
---|