source: UsbWattMeter/trunk/curl-7.47.1/lib/curl_ntlm.c@ 164

Last change on this file since 164 was 164, checked in by coas-nagasima, 6 years ago

TOPPERS/ECNLサンプルアプリ「USB充電器電力計」を追加

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  • Property svn:keywords set to Id
  • Property svn:mime-type set to text/x-csrc
File size: 6.3 KB
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1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23#include "curl_setup.h"
24
25#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM)
26
27/*
28 * NTLM details:
29 *
30 * http://davenport.sourceforge.net/ntlm.html
31 * http://www.innovation.ch/java/ntlm.html
32 */
33
34#define DEBUG_ME 0
35
36#include "urldata.h"
37#include "sendf.h"
38#include "rawstr.h"
39#include "curl_ntlm.h"
40#include "curl_ntlm_msgs.h"
41#include "curl_ntlm_wb.h"
42#include "curl_sasl.h"
43#include "url.h"
44#include "curl_printf.h"
45
46#if defined(USE_NSS)
47#include "vtls/nssg.h"
48#elif defined(USE_WINDOWS_SSPI)
49#include "curl_sspi.h"
50#endif
51
52/* The last #include files should be: */
53#include "curl_memory.h"
54#include "memdebug.h"
55
56#if DEBUG_ME
57# define DEBUG_OUT(x) x
58#else
59# define DEBUG_OUT(x) Curl_nop_stmt
60#endif
61
62CURLcode Curl_input_ntlm(struct connectdata *conn,
63 bool proxy, /* if proxy or not */
64 const char *header) /* rest of the www-authenticate:
65 header */
66{
67 /* point to the correct struct with this */
68 struct ntlmdata *ntlm;
69 CURLcode result = CURLE_OK;
70
71 ntlm = proxy ? &conn->proxyntlm : &conn->ntlm;
72
73 if(checkprefix("NTLM", header)) {
74 header += strlen("NTLM");
75
76 while(*header && ISSPACE(*header))
77 header++;
78
79 if(*header) {
80 result = Curl_sasl_decode_ntlm_type2_message(conn->data, header, ntlm);
81 if(result)
82 return result;
83
84 ntlm->state = NTLMSTATE_TYPE2; /* We got a type-2 message */
85 }
86 else {
87 if(ntlm->state == NTLMSTATE_LAST) {
88 infof(conn->data, "NTLM auth restarted\n");
89 Curl_http_ntlm_cleanup(conn);
90 }
91 else if(ntlm->state == NTLMSTATE_TYPE3) {
92 infof(conn->data, "NTLM handshake rejected\n");
93 Curl_http_ntlm_cleanup(conn);
94 ntlm->state = NTLMSTATE_NONE;
95 return CURLE_REMOTE_ACCESS_DENIED;
96 }
97 else if(ntlm->state >= NTLMSTATE_TYPE1) {
98 infof(conn->data, "NTLM handshake failure (internal error)\n");
99 return CURLE_REMOTE_ACCESS_DENIED;
100 }
101
102 ntlm->state = NTLMSTATE_TYPE1; /* We should send away a type-1 */
103 }
104 }
105
106 return result;
107}
108
109/*
110 * This is for creating ntlm header output
111 */
112CURLcode Curl_output_ntlm(struct connectdata *conn, bool proxy)
113{
114 char *base64 = NULL;
115 size_t len = 0;
116 CURLcode result;
117
118 /* point to the address of the pointer that holds the string to send to the
119 server, which is for a plain host or for a HTTP proxy */
120 char **allocuserpwd;
121
122 /* point to the name and password for this */
123 const char *userp;
124 const char *passwdp;
125
126 /* point to the correct struct with this */
127 struct ntlmdata *ntlm;
128 struct auth *authp;
129
130 DEBUGASSERT(conn);
131 DEBUGASSERT(conn->data);
132
133#ifdef USE_NSS
134 if(CURLE_OK != Curl_nss_force_init(conn->data))
135 return CURLE_OUT_OF_MEMORY;
136#endif
137
138 if(proxy) {
139 allocuserpwd = &conn->allocptr.proxyuserpwd;
140 userp = conn->proxyuser;
141 passwdp = conn->proxypasswd;
142 ntlm = &conn->proxyntlm;
143 authp = &conn->data->state.authproxy;
144 }
145 else {
146 allocuserpwd = &conn->allocptr.userpwd;
147 userp = conn->user;
148 passwdp = conn->passwd;
149 ntlm = &conn->ntlm;
150 authp = &conn->data->state.authhost;
151 }
152 authp->done = FALSE;
153
154 /* not set means empty */
155 if(!userp)
156 userp = "";
157
158 if(!passwdp)
159 passwdp = "";
160
161#ifdef USE_WINDOWS_SSPI
162 if(s_hSecDll == NULL) {
163 /* not thread safe and leaks - use curl_global_init() to avoid */
164 CURLcode err = Curl_sspi_global_init();
165 if(s_hSecDll == NULL)
166 return err;
167 }
168#endif
169
170 switch(ntlm->state) {
171 case NTLMSTATE_TYPE1:
172 default: /* for the weird cases we (re)start here */
173 /* Create a type-1 message */
174 result = Curl_sasl_create_ntlm_type1_message(userp, passwdp, ntlm, &base64,
175 &len);
176 if(result)
177 return result;
178
179 if(base64) {
180 free(*allocuserpwd);
181 *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n",
182 proxy ? "Proxy-" : "",
183 base64);
184 free(base64);
185 if(!*allocuserpwd)
186 return CURLE_OUT_OF_MEMORY;
187
188 DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd));
189 }
190 break;
191
192 case NTLMSTATE_TYPE2:
193 /* We already received the type-2 message, create a type-3 message */
194 result = Curl_sasl_create_ntlm_type3_message(conn->data, userp, passwdp,
195 ntlm, &base64, &len);
196 if(result)
197 return result;
198
199 if(base64) {
200 free(*allocuserpwd);
201 *allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n",
202 proxy ? "Proxy-" : "",
203 base64);
204 free(base64);
205 if(!*allocuserpwd)
206 return CURLE_OUT_OF_MEMORY;
207
208 DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd));
209
210 ntlm->state = NTLMSTATE_TYPE3; /* we send a type-3 */
211 authp->done = TRUE;
212 }
213 break;
214
215 case NTLMSTATE_TYPE3:
216 /* connection is already authenticated,
217 * don't send a header in future requests */
218 ntlm->state = NTLMSTATE_LAST;
219 /* fall-through */
220 case NTLMSTATE_LAST:
221 Curl_safefree(*allocuserpwd);
222 authp->done = TRUE;
223 break;
224 }
225
226 return CURLE_OK;
227}
228
229void Curl_http_ntlm_cleanup(struct connectdata *conn)
230{
231 Curl_sasl_ntlm_cleanup(&conn->ntlm);
232 Curl_sasl_ntlm_cleanup(&conn->proxyntlm);
233
234#if defined(NTLM_WB_ENABLED)
235 Curl_ntlm_wb_cleanup(conn);
236#endif
237}
238
239#endif /* !CURL_DISABLE_HTTP && USE_NTLM */
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