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chromium / external / github.com / git / git / refs/tags/v2.1.3 / . / http.c
blob: c8cd50dd0c2b2213a86957cd4b24c03c0d85717d [file] [log] [blame]
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]1#include "http.h"
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]2#include "pack.h"
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]3#include "sideband.h"
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]4#include "run-command.h"
Gabriel Coronaf39f72d2010-11-14 01:51:15[diff] [blame]5#include "url.h"
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]6#include "urlmatch.h"
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]7#include "credential.h"
Jeff King745c7c82012-06-02 19:03:08[diff] [blame]8#include "version.h"
Jeff King047ec602013-02-20 20:02:45[diff] [blame]9#include "pkt-line.h"
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]10
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]11int active_requests;
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]12int http_is_verbose;
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]13size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]14
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]15#if LIBCURL_VERSION_NUM >= 0x070a06
16#define LIBCURL_CAN_HANDLE_AUTH_ANY
17#endif
18
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]19static int min_curl_sessions = 1;
20static int curl_session_count;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]21#ifdef USE_CURL_MULTI
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]22static int max_requests = -1;
23static CURLM *curlm;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]24#endif
25#ifndef NO_CURL_EASY_DUPHANDLE
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]26static CURL *curl_default;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]27#endif
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]28
29#define PREV_BUF_SIZE 4096
30#define RANGE_HEADER_SIZE 30
31
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]32char curl_errorstr[CURL_ERROR_SIZE];
33
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]34static int curl_ssl_verify = -1;
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]35static int curl_ssl_try;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]36static const char *ssl_cert;
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]37#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]38static const char *ssl_key;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]39#endif
40#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]41static const char *ssl_capath;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]42#endif
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]43static const char *ssl_cainfo;
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]44static long curl_low_speed_limit = -1;
45static long curl_low_speed_time = -1;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]46static int curl_ftp_no_epsv;
47static const char *curl_http_proxy;
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]48static const char *curl_cookie_file;
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]49static int curl_save_cookies;
Jeff King2501aff2013-09-28 08:31:45[diff] [blame]50struct credential http_auth = CREDENTIAL_INIT;
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]51static int http_proactive_auth;
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]52static const char *user_agent;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]53
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]54#if LIBCURL_VERSION_NUM >= 0x071700
55/* Use CURLOPT_KEYPASSWD as is */
56#elif LIBCURL_VERSION_NUM >= 0x070903
57#define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
58#else
59#define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
60#endif
61
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]62static struct credential cert_auth = CREDENTIAL_INIT;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]63static int ssl_cert_password_required;
64
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]65static struct curl_slist *pragma_header;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]66static struct curl_slist *no_pragma_header;
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]67
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]68static struct active_request_slot *active_queue_head;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]69
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]70size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]71{
72 size_t size = eltsize * nmemb;
Junio C Hamanof444e522008-07-04 07:37:40[diff] [blame]73 struct buffer *buffer = buffer_;
74
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]75 if (size > buffer->buf.len - buffer->posn)
76 size = buffer->buf.len - buffer->posn;
77 memcpy(ptr, buffer->buf.buf + buffer->posn, size);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]78 buffer->posn += size;
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]79
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]80 return size;
81}
82
Martin Storsjö3944ba02009-04-01 16:48:24[diff] [blame]83#ifndef NO_CURL_IOCTL
84curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp)
85{
86 struct buffer *buffer = clientp;
87
88 switch (cmd) {
89 case CURLIOCMD_NOP:
90 return CURLIOE_OK;
91
92 case CURLIOCMD_RESTARTREAD:
93 buffer->posn = 0;
94 return CURLIOE_OK;
95
96 default:
97 return CURLIOE_UNKNOWNCMD;
98 }
99}
100#endif
101
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]102size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]103{
104 size_t size = eltsize * nmemb;
Junio C Hamanof444e522008-07-04 07:37:40[diff] [blame]105 struct strbuf *buffer = buffer_;
106
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]107 strbuf_add(buffer, ptr, size);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]108 return size;
109}
110
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]111size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]112{
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]113 return eltsize * nmemb;
114}
115
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]116#ifdef USE_CURL_MULTI
117static void process_curl_messages(void)
118{
119 int num_messages;
120 struct active_request_slot *slot;
121 CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages);
122
123 while (curl_message != NULL) {
124 if (curl_message->msg == CURLMSG_DONE) {
125 int curl_result = curl_message->data.result;
126 slot = active_queue_head;
127 while (slot != NULL &&
128 slot->curl != curl_message->easy_handle)
129 slot = slot->next;
130 if (slot != NULL) {
131 curl_multi_remove_handle(curlm, slot->curl);
132 slot->curl_result = curl_result;
133 finish_active_slot(slot);
134 } else {
135 fprintf(stderr, "Received DONE message for unknown request!\n");
136 }
137 } else {
138 fprintf(stderr, "Unknown CURL message received: %d\n",
139 (int)curl_message->msg);
140 }
141 curl_message = curl_multi_info_read(curlm, &num_messages);
142 }
143}
144#endif
145
Johannes Schindelinef90d6d2008-05-14 17:46:53[diff] [blame]146static int http_options(const char *var, const char *value, void *cb)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]147{
148 if (!strcmp("http.sslverify", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]149 curl_ssl_verify = git_config_bool(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]150 return 0;
151 }
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]152 if (!strcmp("http.sslcert", var))
153 return git_config_string(&ssl_cert, var, value);
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]154#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]155 if (!strcmp("http.sslkey", var))
156 return git_config_string(&ssl_key, var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]157#endif
158#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]159 if (!strcmp("http.sslcapath", var))
160 return git_config_string(&ssl_capath, var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]161#endif
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]162 if (!strcmp("http.sslcainfo", var))
163 return git_config_string(&ssl_cainfo, var, value);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]164 if (!strcmp("http.sslcertpasswordprotected", var)) {
Junio C Hamano3f4ccd22013-07-12 18:52:47[diff] [blame]165 ssl_cert_password_required = git_config_bool(var, value);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]166 return 0;
167 }
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]168 if (!strcmp("http.ssltry", var)) {
169 curl_ssl_try = git_config_bool(var, value);
170 return 0;
171 }
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]172 if (!strcmp("http.minsessions", var)) {
173 min_curl_sessions = git_config_int(var, value);
174#ifndef USE_CURL_MULTI
175 if (min_curl_sessions > 1)
176 min_curl_sessions = 1;
177#endif
178 return 0;
179 }
Junio C Hamanoa6080a02007-06-07 07:04:01[diff] [blame]180#ifdef USE_CURL_MULTI
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]181 if (!strcmp("http.maxrequests", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]182 max_requests = git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]183 return 0;
184 }
185#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]186 if (!strcmp("http.lowspeedlimit", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]187 curl_low_speed_limit = (long)git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]188 return 0;
189 }
190 if (!strcmp("http.lowspeedtime", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]191 curl_low_speed_time = (long)git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]192 return 0;
193 }
194
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]195 if (!strcmp("http.noepsv", var)) {
196 curl_ftp_no_epsv = git_config_bool(var, value);
197 return 0;
198 }
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]199 if (!strcmp("http.proxy", var))
200 return git_config_string(&curl_http_proxy, var, value);
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]201
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]202 if (!strcmp("http.cookiefile", var))
203 return git_config_string(&curl_cookie_file, var, value);
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]204 if (!strcmp("http.savecookies", var)) {
205 curl_save_cookies = git_config_bool(var, value);
206 return 0;
207 }
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]208
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]209 if (!strcmp("http.postbuffer", var)) {
210 http_post_buffer = git_config_int(var, value);
211 if (http_post_buffer < LARGE_PACKET_MAX)
212 http_post_buffer = LARGE_PACKET_MAX;
213 return 0;
214 }
215
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]216 if (!strcmp("http.useragent", var))
217 return git_config_string(&user_agent, var, value);
218
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]219 /* Fall back on the default ones */
Johannes Schindelinef90d6d2008-05-14 17:46:53[diff] [blame]220 return git_default_config(var, value, cb);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]221}
222
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]223static void init_curl_http_auth(CURL *result)
224{
Jeff King6f4c3472012-04-13 06:19:25[diff] [blame]225 if (!http_auth.username)
226 return;
227
228 credential_fill(&http_auth);
229
230#if LIBCURL_VERSION_NUM >= 0x071301
231 curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username);
232 curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password);
233#else
234 {
Jeff Kingaa0834a2012-04-13 06:18:35[diff] [blame]235 static struct strbuf up = STRBUF_INIT;
Brandon Caseya94cf2c2013-06-19 02:43:49[diff] [blame]236 /*
237 * Note that we assume we only ever have a single set of
238 * credentials in a given program run, so we do not have
239 * to worry about updating this buffer, only setting its
240 * initial value.
241 */
242 if (!up.len)
243 strbuf_addf(&up, "%s:%s",
244 http_auth.username, http_auth.password);
Jeff Kingaa0834a2012-04-13 06:18:35[diff] [blame]245 curl_easy_setopt(result, CURLOPT_USERPWD, up.buf);
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]246 }
Jeff King6f4c3472012-04-13 06:19:25[diff] [blame]247#endif
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]248}
249
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]250static int has_cert_password(void)
251{
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]252 if (ssl_cert == NULL || ssl_cert_password_required != 1)
253 return 0;
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]254 if (!cert_auth.password) {
255 cert_auth.protocol = xstrdup("cert");
Rene Bredlau75e9a402012-12-21 16:31:19[diff] [blame]256 cert_auth.username = xstrdup("");
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]257 cert_auth.path = xstrdup(ssl_cert);
258 credential_fill(&cert_auth);
259 }
260 return 1;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]261}
262
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]263#if LIBCURL_VERSION_NUM >= 0x071900
264static void set_curl_keepalive(CURL *c)
265{
266 curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1);
267}
268
269#elif LIBCURL_VERSION_NUM >= 0x071000
Eric Wonga15d0692013-10-12 22:29:40[diff] [blame]270static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type)
271{
272 int ka = 1;
273 int rc;
274 socklen_t len = (socklen_t)sizeof(ka);
275
276 if (type != CURLSOCKTYPE_IPCXN)
277 return 0;
278
279 rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len);
280 if (rc < 0)
281 warning("unable to set SO_KEEPALIVE on socket %s",
282 strerror(errno));
283
284 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
285}
286
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]287static void set_curl_keepalive(CURL *c)
288{
289 curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
290}
291
292#else
293static void set_curl_keepalive(CURL *c)
294{
295 /* not supported on older curl versions */
296}
297#endif
298
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]299static CURL *get_curl_handle(void)
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]300{
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]301 CURL *result = curl_easy_init();
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]302
Junio C Hamanoa5ccc592008-02-21 23:10:37[diff] [blame]303 if (!curl_ssl_verify) {
304 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0);
305 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0);
306 } else {
307 /* Verify authenticity of the peer's certificate */
308 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1);
309 /* The name in the cert must match whom we tried to connect */
310 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
311 }
312
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]313#if LIBCURL_VERSION_NUM >= 0x070907
314 curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
315#endif
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]316#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
Junio C Hamano525ecd22009-12-28 18:04:24[diff] [blame]317 curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]318#endif
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]319
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]320 if (http_proactive_auth)
321 init_curl_http_auth(result);
322
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]323 if (ssl_cert != NULL)
324 curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]325 if (has_cert_password())
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]326 curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password);
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]327#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]328 if (ssl_key != NULL)
329 curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
330#endif
331#if LIBCURL_VERSION_NUM >= 0x070908
332 if (ssl_capath != NULL)
333 curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
334#endif
335 if (ssl_cainfo != NULL)
336 curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]337
338 if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
339 curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
340 curl_low_speed_limit);
341 curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME,
342 curl_low_speed_time);
343 }
344
345 curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1);
Tay Ray Chuan311e2ea2010-09-25 04:20:35[diff] [blame]346#if LIBCURL_VERSION_NUM >= 0x071301
347 curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
348#elif LIBCURL_VERSION_NUM >= 0x071101
349 curl_easy_setopt(result, CURLOPT_POST301, 1);
350#endif
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]351
Mark Wooding7982d742006-02-01 11:44:37[diff] [blame]352 if (getenv("GIT_CURL_VERBOSE"))
353 curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
354
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]355 curl_easy_setopt(result, CURLOPT_USERAGENT,
Jeff King745c7c82012-06-02 19:03:08[diff] [blame]356 user_agent ? user_agent : git_user_agent());
Nick Hengeveld20fc9bc2006-04-04 17:11:29[diff] [blame]357
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]358 if (curl_ftp_no_epsv)
359 curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
360
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]361#ifdef CURLOPT_USE_SSL
362 if (curl_ssl_try)
363 curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
364#endif
365
Nelson Benitez Leondd613992012-03-02 13:55:57[diff] [blame]366 if (curl_http_proxy) {
Sam Vilain9c5665a2007-11-23 00:07:00[diff] [blame]367 curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
Nelson Benitez Leondd613992012-03-02 13:55:57[diff] [blame]368 curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
369 }
Sam Vilain9c5665a2007-11-23 00:07:00[diff] [blame]370
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]371 set_curl_keepalive(result);
Eric Wonga15d0692013-10-12 22:29:40[diff] [blame]372
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]373 return result;
374}
375
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]376static void set_from_env(const char **var, const char *envname)
377{
378 const char *val = getenv(envname);
379 if (val)
380 *var = val;
381}
382
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]383void http_init(struct remote *remote, const char *url, int proactive_auth)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]384{
385 char *low_speed_limit;
386 char *low_speed_time;
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]387 char *normalized_url;
388 struct urlmatch_config config = { STRING_LIST_INIT_DUP };
389
390 config.section = "http";
391 config.key = NULL;
392 config.collect_fn = http_options;
393 config.cascade_fn = git_default_config;
394 config.cb = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]395
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]396 http_is_verbose = 0;
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]397 normalized_url = url_normalize(url, &config.url);
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]398
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]399 git_config(urlmatch_config_entry, &config);
400 free(normalized_url);
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]401
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]402 curl_global_init(CURL_GLOBAL_ALL);
403
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]404 http_proactive_auth = proactive_auth;
405
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]406 if (remote && remote->http_proxy)
407 curl_http_proxy = xstrdup(remote->http_proxy);
408
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]409 pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache");
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]410 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]411
412#ifdef USE_CURL_MULTI
413 {
414 char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
415 if (http_max_requests != NULL)
416 max_requests = atoi(http_max_requests);
417 }
418
419 curlm = curl_multi_init();
420 if (curlm == NULL) {
421 fprintf(stderr, "Error creating curl multi handle.\n");
422 exit(1);
423 }
424#endif
425
426 if (getenv("GIT_SSL_NO_VERIFY"))
427 curl_ssl_verify = 0;
428
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]429 set_from_env(&ssl_cert, "GIT_SSL_CERT");
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]430#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]431 set_from_env(&ssl_key, "GIT_SSL_KEY");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]432#endif
433#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]434 set_from_env(&ssl_capath, "GIT_SSL_CAPATH");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]435#endif
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]436 set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]437
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]438 set_from_env(&user_agent, "GIT_HTTP_USER_AGENT");
439
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]440 low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
441 if (low_speed_limit != NULL)
442 curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
443 low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME");
444 if (low_speed_time != NULL)
445 curl_low_speed_time = strtol(low_speed_time, NULL, 10);
446
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]447 if (curl_ssl_verify == -1)
448 curl_ssl_verify = 1;
449
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]450 curl_session_count = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]451#ifdef USE_CURL_MULTI
452 if (max_requests < 1)
453 max_requests = DEFAULT_MAX_REQUESTS;
454#endif
455
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]456 if (getenv("GIT_CURL_FTP_NO_EPSV"))
457 curl_ftp_no_epsv = 1;
458
Jeff Kingdeba4932011-10-14 07:40:40[diff] [blame]459 if (url) {
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]460 credential_from_url(&http_auth, url);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]461 if (!ssl_cert_password_required &&
462 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
Christian Couder59556542013-11-30 20:55:40[diff] [blame]463 starts_with(url, "https://"))
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]464 ssl_cert_password_required = 1;
465 }
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]466
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]467#ifndef NO_CURL_EASY_DUPHANDLE
468 curl_default = get_curl_handle();
469#endif
470}
471
472void http_cleanup(void)
473{
474 struct active_request_slot *slot = active_queue_head;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]475
476 while (slot != NULL) {
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]477 struct active_request_slot *next = slot->next;
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]478 if (slot->curl != NULL) {
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]479#ifdef USE_CURL_MULTI
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]480 curl_multi_remove_handle(curlm, slot->curl);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]481#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]482 curl_easy_cleanup(slot->curl);
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]483 }
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]484 free(slot);
485 slot = next;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]486 }
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]487 active_queue_head = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]488
489#ifndef NO_CURL_EASY_DUPHANDLE
490 curl_easy_cleanup(curl_default);
491#endif
492
493#ifdef USE_CURL_MULTI
494 curl_multi_cleanup(curlm);
495#endif
496 curl_global_cleanup();
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]497
498 curl_slist_free_all(pragma_header);
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]499 pragma_header = NULL;
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]500
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]501 curl_slist_free_all(no_pragma_header);
502 no_pragma_header = NULL;
503
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]504 if (curl_http_proxy) {
Miklos Vajnae4a80ec2008-12-07 00:45:37[diff] [blame]505 free((void *)curl_http_proxy);
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]506 curl_http_proxy = NULL;
507 }
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]508
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]509 if (cert_auth.password != NULL) {
510 memset(cert_auth.password, 0, strlen(cert_auth.password));
511 free(cert_auth.password);
512 cert_auth.password = NULL;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]513 }
514 ssl_cert_password_required = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]515}
516
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]517struct active_request_slot *get_active_slot(void)
518{
519 struct active_request_slot *slot = active_queue_head;
520 struct active_request_slot *newslot;
521
522#ifdef USE_CURL_MULTI
523 int num_transfers;
524
525 /* Wait for a slot to open up if the queue is full */
526 while (active_requests >= max_requests) {
527 curl_multi_perform(curlm, &num_transfers);
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]528 if (num_transfers < active_requests)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]529 process_curl_messages();
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]530 }
531#endif
532
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]533 while (slot != NULL && slot->in_use)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]534 slot = slot->next;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]535
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]536 if (slot == NULL) {
537 newslot = xmalloc(sizeof(*newslot));
538 newslot->curl = NULL;
539 newslot->in_use = 0;
540 newslot->next = NULL;
541
542 slot = active_queue_head;
543 if (slot == NULL) {
544 active_queue_head = newslot;
545 } else {
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]546 while (slot->next != NULL)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]547 slot = slot->next;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]548 slot->next = newslot;
549 }
550 slot = newslot;
551 }
552
553 if (slot->curl == NULL) {
554#ifdef NO_CURL_EASY_DUPHANDLE
555 slot->curl = get_curl_handle();
556#else
557 slot->curl = curl_easy_duphandle(curl_default);
558#endif
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]559 curl_session_count++;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]560 }
561
562 active_requests++;
563 slot->in_use = 1;
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]564 slot->results = NULL;
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]565 slot->finished = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]566 slot->callback_data = NULL;
567 slot->callback_func = NULL;
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]568 curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file);
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]569 if (curl_save_cookies)
570 curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]571 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]572 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
Nick Hengeveld90949502006-05-31 23:25:03[diff] [blame]573 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
574 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL);
575 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL);
Junio C Hamano1e418272011-04-26 15:04:49[diff] [blame]576 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL);
Nick Hengeveld90949502006-05-31 23:25:03[diff] [blame]577 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0);
578 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
Jeff Kingb793acf2013-04-16 00:30:38[diff] [blame]579 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
Jeff Kingdfa17252012-04-10 09:53:40[diff] [blame]580 if (http_auth.password)
581 init_curl_http_auth(slot->curl);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]582
583 return slot;
584}
585
586int start_active_slot(struct active_request_slot *slot)
587{
588#ifdef USE_CURL_MULTI
589 CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]590 int num_transfers;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]591
592 if (curlm_result != CURLM_OK &&
593 curlm_result != CURLM_CALL_MULTI_PERFORM) {
594 active_requests--;
595 slot->in_use = 0;
596 return 0;
597 }
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]598
599 /*
600 * We know there must be something to do, since we just added
601 * something.
602 */
603 curl_multi_perform(curlm, &num_transfers);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]604#endif
605 return 1;
606}
607
608#ifdef USE_CURL_MULTI
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]609struct fill_chain {
610 void *data;
611 int (*fill)(void *);
612 struct fill_chain *next;
613};
614
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]615static struct fill_chain *fill_cfg;
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]616
617void add_fill_function(void *data, int (*fill)(void *))
618{
Dotan Barake8eec712008-09-09 18:57:10[diff] [blame]619 struct fill_chain *new = xmalloc(sizeof(*new));
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]620 struct fill_chain **linkp = &fill_cfg;
621 new->data = data;
622 new->fill = fill;
623 new->next = NULL;
624 while (*linkp)
625 linkp = &(*linkp)->next;
626 *linkp = new;
627}
628
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]629void fill_active_slots(void)
630{
631 struct active_request_slot *slot = active_queue_head;
632
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]633 while (active_requests < max_requests) {
634 struct fill_chain *fill;
635 for (fill = fill_cfg; fill; fill = fill->next)
636 if (fill->fill(fill->data))
637 break;
638
639 if (!fill)
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]640 break;
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]641 }
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]642
643 while (slot != NULL) {
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]644 if (!slot->in_use && slot->curl != NULL
645 && curl_session_count > min_curl_sessions) {
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]646 curl_easy_cleanup(slot->curl);
647 slot->curl = NULL;
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]648 curl_session_count--;
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]649 }
650 slot = slot->next;
651 }
652}
653
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]654void step_active_slots(void)
655{
656 int num_transfers;
657 CURLMcode curlm_result;
658
659 do {
660 curlm_result = curl_multi_perform(curlm, &num_transfers);
661 } while (curlm_result == CURLM_CALL_MULTI_PERFORM);
662 if (num_transfers < active_requests) {
663 process_curl_messages();
664 fill_active_slots();
665 }
666}
667#endif
668
669void run_active_slot(struct active_request_slot *slot)
670{
671#ifdef USE_CURL_MULTI
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]672 fd_set readfds;
673 fd_set writefds;
674 fd_set excfds;
675 int max_fd;
676 struct timeval select_timeout;
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]677 int finished = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]678
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]679 slot->finished = &finished;
680 while (!finished) {
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]681 step_active_slots();
682
Mika Fischerdf26c472011-11-04 14:19:27[diff] [blame]683 if (slot->in_use) {
Mika Fischereb56c822011-11-04 14:19:26[diff] [blame]684#if LIBCURL_VERSION_NUM >= 0x070f04
685 long curl_timeout;
686 curl_multi_timeout(curlm, &curl_timeout);
687 if (curl_timeout == 0) {
688 continue;
689 } else if (curl_timeout == -1) {
690 select_timeout.tv_sec = 0;
691 select_timeout.tv_usec = 50000;
692 } else {
693 select_timeout.tv_sec = curl_timeout / 1000;
694 select_timeout.tv_usec = (curl_timeout % 1000) * 1000;
695 }
696#else
697 select_timeout.tv_sec = 0;
698 select_timeout.tv_usec = 50000;
699#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]700
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]701 max_fd = -1;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]702 FD_ZERO(&readfds);
703 FD_ZERO(&writefds);
704 FD_ZERO(&excfds);
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]705 curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd);
Mika Fischereb56c822011-11-04 14:19:26[diff] [blame]706
Stefan Zager7202b812012-10-19 21:04:20[diff] [blame]707 /*
708 * It can happen that curl_multi_timeout returns a pathologically
709 * long timeout when curl_multi_fdset returns no file descriptors
710 * to read. See commit message for more details.
711 */
712 if (max_fd < 0 &&
713 (select_timeout.tv_sec > 0 ||
714 select_timeout.tv_usec > 50000)) {
715 select_timeout.tv_sec = 0;
716 select_timeout.tv_usec = 50000;
717 }
718
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]719 select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]720 }
721 }
722#else
723 while (slot->in_use) {
724 slot->curl_result = curl_easy_perform(slot->curl);
725 finish_active_slot(slot);
726 }
727#endif
728}
729
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]730static void closedown_active_slot(struct active_request_slot *slot)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]731{
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]732 active_requests--;
733 slot->in_use = 0;
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]734}
735
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]736static void release_active_slot(struct active_request_slot *slot)
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]737{
738 closedown_active_slot(slot);
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]739 if (slot->curl && curl_session_count > min_curl_sessions) {
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]740#ifdef USE_CURL_MULTI
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]741 curl_multi_remove_handle(curlm, slot->curl);
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]742#endif
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]743 curl_easy_cleanup(slot->curl);
744 slot->curl = NULL;
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]745 curl_session_count--;
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]746 }
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]747#ifdef USE_CURL_MULTI
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]748 fill_active_slots();
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]749#endif
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]750}
751
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]752void finish_active_slot(struct active_request_slot *slot)
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]753{
754 closedown_active_slot(slot);
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]755 curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]756
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]757 if (slot->finished != NULL)
758 (*slot->finished) = 1;
759
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]760 /* Store slot results so they can be read after the slot is reused */
761 if (slot->results != NULL) {
762 slot->results->curl_result = slot->curl_result;
763 slot->results->http_code = slot->http_code;
Jeff King0972ccd2013-10-31 06:35:31[diff] [blame]764#if LIBCURL_VERSION_NUM >= 0x070a08
765 curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
766 &slot->results->auth_avail);
767#else
768 slot->results->auth_avail = 0;
769#endif
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]770 }
771
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]772 /* Run callback if appropriate */
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]773 if (slot->callback_func != NULL)
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]774 slot->callback_func(slot->callback_data);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]775}
776
777void finish_all_active_slots(void)
778{
779 struct active_request_slot *slot = active_queue_head;
780
781 while (slot != NULL)
782 if (slot->in_use) {
783 run_active_slot(slot);
784 slot = active_queue_head;
785 } else {
786 slot = slot->next;
787 }
788}
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]789
Tay Ray Chuan5ace9942009-06-06 08:43:43[diff] [blame]790/* Helpers for modifying and creating URLs */
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]791static inline int needs_quote(int ch)
792{
793 if (((ch >= 'A') && (ch <= 'Z'))
794 || ((ch >= 'a') && (ch <= 'z'))
795 || ((ch >= '0') && (ch <= '9'))
796 || (ch == '/')
797 || (ch == '-')
798 || (ch == '.'))
799 return 0;
800 return 1;
801}
802
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]803static char *quote_ref_url(const char *base, const char *ref)
804{
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]805 struct strbuf buf = STRBUF_INIT;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]806 const char *cp;
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]807 int ch;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]808
Tay Ray Chuan5ace9942009-06-06 08:43:43[diff] [blame]809 end_url_with_slash(&buf, base);
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]810
811 for (cp = ref; (ch = *cp) != 0; cp++)
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]812 if (needs_quote(ch))
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]813 strbuf_addf(&buf, "%%%02x", ch);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]814 else
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]815 strbuf_addch(&buf, *cp);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]816
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]817 return strbuf_detach(&buf, NULL);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]818}
819
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]820void append_remote_object_url(struct strbuf *buf, const char *url,
821 const char *hex,
822 int only_two_digit_prefix)
823{
Tay Ray Chuan800324c2009-08-17 09:09:43[diff] [blame]824 end_url_with_slash(buf, url);
825
826 strbuf_addf(buf, "objects/%.*s/", 2, hex);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]827 if (!only_two_digit_prefix)
828 strbuf_addf(buf, "%s", hex+2);
829}
830
831char *get_remote_object_url(const char *url, const char *hex,
832 int only_two_digit_prefix)
833{
834 struct strbuf buf = STRBUF_INIT;
835 append_remote_object_url(&buf, url, hex, only_two_digit_prefix);
836 return strbuf_detach(&buf, NULL);
837}
838
Jeff King19608972012-10-12 07:35:59[diff] [blame]839int handle_curl_result(struct slot_results *results)
Jeff King88097032012-08-27 13:26:04[diff] [blame]840{
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]841 /*
842 * If we see a failing http code with CURLE_OK, we have turned off
843 * FAILONERROR (to keep the server's custom error response), and should
844 * translate the code into failure here.
845 */
846 if (results->curl_result == CURLE_OK &&
847 results->http_code >= 400) {
848 results->curl_result = CURLE_HTTP_RETURNED_ERROR;
849 /*
850 * Normally curl will already have put the "reason phrase"
851 * from the server into curl_errorstr; unfortunately without
852 * FAILONERROR it is lost, so we can give only the numeric
853 * status code.
854 */
855 snprintf(curl_errorstr, sizeof(curl_errorstr),
856 "The requested URL returned error: %ld",
857 results->http_code);
858 }
859
Jeff King88097032012-08-27 13:26:04[diff] [blame]860 if (results->curl_result == CURLE_OK) {
861 credential_approve(&http_auth);
862 return HTTP_OK;
863 } else if (missing_target(results))
864 return HTTP_MISSING_TARGET;
865 else if (results->http_code == 401) {
866 if (http_auth.username && http_auth.password) {
867 credential_reject(&http_auth);
868 return HTTP_NOAUTH;
869 } else {
Jeff King88097032012-08-27 13:26:04[diff] [blame]870 return HTTP_REAUTH;
871 }
872 } else {
Junio C Hamano3503e9a2012-09-12 21:08:05[diff] [blame]873#if LIBCURL_VERSION_NUM >= 0x070c00
Jeff King88097032012-08-27 13:26:04[diff] [blame]874 if (!curl_errorstr[0])
875 strlcpy(curl_errorstr,
876 curl_easy_strerror(results->curl_result),
877 sizeof(curl_errorstr));
Junio C Hamano3503e9a2012-09-12 21:08:05[diff] [blame]878#endif
Jeff King88097032012-08-27 13:26:04[diff] [blame]879 return HTTP_ERROR;
880 }
881}
882
Jeff Kingbeed3362014-02-18 10:34:20[diff] [blame]883int run_one_slot(struct active_request_slot *slot,
884 struct slot_results *results)
885{
886 slot->results = results;
887 if (!start_active_slot(slot)) {
888 snprintf(curl_errorstr, sizeof(curl_errorstr),
889 "failed to start HTTP request");
890 return HTTP_START_FAILED;
891 }
892
893 run_active_slot(slot);
894 return handle_curl_result(results);
895}
896
Jeff King132b70a2013-09-28 08:31:11[diff] [blame]897static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf)
898{
899 char *ptr;
900 CURLcode ret;
901
902 strbuf_reset(buf);
903 ret = curl_easy_getinfo(curl, info, &ptr);
904 if (!ret && ptr)
905 strbuf_addstr(buf, ptr);
906 return ret;
907}
908
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]909/*
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]910 * Check for and extract a content-type parameter. "raw"
911 * should be positioned at the start of the potential
912 * parameter, with any whitespace already removed.
913 *
914 * "name" is the name of the parameter. The value is appended
915 * to "out".
916 */
917static int extract_param(const char *raw, const char *name,
918 struct strbuf *out)
919{
920 size_t len = strlen(name);
921
922 if (strncasecmp(raw, name, len))
923 return -1;
924 raw += len;
925
926 if (*raw != '=')
927 return -1;
928 raw++;
929
Yi EungJunf34a6552014-06-17 22:11:53[diff] [blame]930 while (*raw && !isspace(*raw) && *raw != ';')
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]931 strbuf_addch(out, *raw++);
932 return 0;
933}
934
935/*
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]936 * Extract a normalized version of the content type, with any
937 * spaces suppressed, all letters lowercased, and no trailing ";"
938 * or parameters.
939 *
940 * Note that we will silently remove even invalid whitespace. For
941 * example, "text / plain" is specifically forbidden by RFC 2616,
942 * but "text/plain" is the only reasonable output, and this keeps
943 * our code simple.
944 *
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]945 * If the "charset" argument is not NULL, store the value of any
946 * charset parameter there.
947 *
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]948 * Example:
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]949 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]950 * "text / plain" -> "text/plain"
951 */
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]952static void extract_content_type(struct strbuf *raw, struct strbuf *type,
953 struct strbuf *charset)
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]954{
955 const char *p;
956
957 strbuf_reset(type);
958 strbuf_grow(type, raw->len);
959 for (p = raw->buf; *p; p++) {
960 if (isspace(*p))
961 continue;
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]962 if (*p == ';') {
963 p++;
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]964 break;
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]965 }
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]966 strbuf_addch(type, tolower(*p));
967 }
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]968
969 if (!charset)
970 return;
971
972 strbuf_reset(charset);
973 while (*p) {
Yi EungJunf34a6552014-06-17 22:11:53[diff] [blame]974 while (isspace(*p) || *p == ';')
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]975 p++;
976 if (!extract_param(p, "charset", charset))
977 return;
978 while (*p && !isspace(*p))
979 p++;
980 }
Jeff Kingc553fd12014-05-22 09:36:12[diff] [blame]981
982 if (!charset->len && starts_with(type->buf, "text/"))
983 strbuf_addstr(charset, "ISO-8859-1");
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]984}
985
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]986/* http_request() targets */
987#define HTTP_REQUEST_STRBUF 0
988#define HTTP_REQUEST_FILE 1
989
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]990static int http_request(const char *url,
991 void *result, int target,
992 const struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]993{
994 struct active_request_slot *slot;
995 struct slot_results results;
996 struct curl_slist *headers = NULL;
997 struct strbuf buf = STRBUF_INIT;
998 int ret;
999
1000 slot = get_active_slot();
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1001 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1002
1003 if (result == NULL) {
1004 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
1005 } else {
1006 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
1007 curl_easy_setopt(slot->curl, CURLOPT_FILE, result);
1008
1009 if (target == HTTP_REQUEST_FILE) {
1010 long posn = ftell(result);
1011 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
1012 fwrite);
1013 if (posn > 0) {
1014 strbuf_addf(&buf, "Range: bytes=%ld-", posn);
1015 headers = curl_slist_append(headers, buf.buf);
1016 strbuf_reset(&buf);
1017 }
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1018 } else
1019 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
1020 fwrite_buffer);
1021 }
1022
1023 strbuf_addstr(&buf, "Pragma:");
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1024 if (options && options->no_cache)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1025 strbuf_addstr(&buf, " no-cache");
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1026 if (options && options->keep_error)
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1027 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1028
1029 headers = curl_slist_append(headers, buf.buf);
1030
1031 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1032 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
Shawn O. Pearceaa90b962012-09-19 23:12:02[diff] [blame]1033 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1034
Jeff Kingbeed3362014-02-18 10:34:20[diff] [blame]1035 ret = run_one_slot(slot, &results);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1036
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]1037 if (options && options->content_type) {
1038 struct strbuf raw = STRBUF_INIT;
1039 curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw);
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]1040 extract_content_type(&raw, options->content_type,
1041 options->charset);
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]1042 strbuf_release(&raw);
1043 }
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1044
Jeff King78868962013-09-28 08:32:02[diff] [blame]1045 if (options && options->effective_url)
1046 curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL,
1047 options->effective_url);
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1048
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1049 curl_slist_free_all(headers);
1050 strbuf_release(&buf);
1051
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1052 return ret;
1053}
1054
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1055/*
1056 * Update the "base" url to a more appropriate value, as deduced by
1057 * redirects seen when requesting a URL starting with "url".
1058 *
1059 * The "asked" parameter is a URL that we asked curl to access, and must begin
1060 * with "base".
1061 *
1062 * The "got" parameter is the URL that curl reported to us as where we ended
1063 * up.
1064 *
1065 * Returns 1 if we updated the base url, 0 otherwise.
1066 *
1067 * Our basic strategy is to compare "base" and "asked" to find the bits
1068 * specific to our request. We then strip those bits off of "got" to yield the
1069 * new base. So for example, if our base is "http://example.com/foo.git",
1070 * and we ask for "http://example.com/foo.git/info/refs", we might end up
1071 * with "https://other.example.com/foo.git/info/refs". We would want the
1072 * new URL to become "https://other.example.com/foo.git".
1073 *
1074 * Note that this assumes a sane redirect scheme. It's entirely possible
1075 * in the example above to end up at a URL that does not even end in
1076 * "info/refs". In such a case we simply punt, as there is not much we can
1077 * do (and such a scheme is unlikely to represent a real git repository,
1078 * which means we are likely about to abort anyway).
1079 */
1080static int update_url_from_redirect(struct strbuf *base,
1081 const char *asked,
1082 const struct strbuf *got)
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1083{
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1084 const char *tail;
1085 size_t tail_len;
1086
1087 if (!strcmp(asked, got->buf))
1088 return 0;
1089
Jeff Kingde8118e2014-06-18 19:57:17[diff] [blame]1090 if (!skip_prefix(asked, base->buf, &tail))
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1091 die("BUG: update_url_from_redirect: %s is not a superset of %s",
1092 asked, base->buf);
1093
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1094 tail_len = strlen(tail);
1095
1096 if (got->len < tail_len ||
1097 strcmp(tail, got->buf + got->len - tail_len))
1098 return 0; /* insane redirect scheme */
1099
1100 strbuf_reset(base);
1101 strbuf_add(base, got->buf, got->len - tail_len);
1102 return 1;
1103}
1104
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1105static int http_request_reauth(const char *url,
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1106 void *result, int target,
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1107 struct http_get_options *options)
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1108{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1109 int ret = http_request(url, result, target, options);
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1110
1111 if (options && options->effective_url && options->base_url) {
1112 if (update_url_from_redirect(options->base_url,
1113 url, options->effective_url)) {
1114 credential_from_url(&http_auth, options->base_url->buf);
1115 url = options->effective_url->buf;
1116 }
1117 }
1118
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1119 if (ret != HTTP_REAUTH)
1120 return ret;
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1121
1122 /*
1123 * If we are using KEEP_ERROR, the previous request may have
1124 * put cruft into our output stream; we should clear it out before
1125 * making our next request. We only know how to do this for
1126 * the strbuf case, but that is enough to satisfy current callers.
1127 */
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1128 if (options && options->keep_error) {
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1129 switch (target) {
1130 case HTTP_REQUEST_STRBUF:
1131 strbuf_reset(result);
1132 break;
1133 default:
1134 die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
1135 }
1136 }
Jeff King2501aff2013-09-28 08:31:45[diff] [blame]1137
1138 credential_fill(&http_auth);
1139
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1140 return http_request(url, result, target, options);
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1141}
1142
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1143int http_get_strbuf(const char *url,
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1144 struct strbuf *result,
1145 struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1146{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1147 return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1148}
1149
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]1150/*
Jim Meyeringa7793a72012-03-28 08:41:54[diff] [blame]1151 * Downloads a URL and stores the result in the given file.
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]1152 *
1153 * If a previous interrupted download is detected (i.e. a previous temporary
1154 * file is still around) the download is resumed.
1155 */
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1156static int http_get_file(const char *url, const char *filename,
1157 struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1158{
1159 int ret;
1160 struct strbuf tmpfile = STRBUF_INIT;
1161 FILE *result;
1162
1163 strbuf_addf(&tmpfile, "%s.temp", filename);
1164 result = fopen(tmpfile.buf, "a");
Jeff King3d1fb762013-09-28 08:31:00[diff] [blame]1165 if (!result) {
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1166 error("Unable to open local file %s", tmpfile.buf);
1167 ret = HTTP_ERROR;
1168 goto cleanup;
1169 }
1170
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1171 ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1172 fclose(result);
1173
Jeff King3d1fb762013-09-28 08:31:00[diff] [blame]1174 if (ret == HTTP_OK && move_temp_to_file(tmpfile.buf, filename))
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1175 ret = HTTP_ERROR;
1176cleanup:
1177 strbuf_release(&tmpfile);
1178 return ret;
1179}
1180
Daniel Barkalowc13b2632008-04-26 19:53:09[diff] [blame]1181int http_fetch_ref(const char *base, struct ref *ref)
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1182{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1183 struct http_get_options options = {0};
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1184 char *url;
1185 struct strbuf buffer = STRBUF_INIT;
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1186 int ret = -1;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1187
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1188 options.no_cache = 1;
1189
Daniel Barkalowc13b2632008-04-26 19:53:09[diff] [blame]1190 url = quote_ref_url(base, ref->name);
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1191 if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) {
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1192 strbuf_rtrim(&buffer);
1193 if (buffer.len == 40)
1194 ret = get_sha1_hex(buffer.buf, ref->old_sha1);
Christian Couder59556542013-11-30 20:55:40[diff] [blame]1195 else if (starts_with(buffer.buf, "ref: ")) {
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1196 ref->symref = xstrdup(buffer.buf + 5);
1197 ret = 0;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1198 }
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1199 }
1200
1201 strbuf_release(&buffer);
1202 free(url);
1203 return ret;
1204}
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1205
1206/* Helpers for fetching packs */
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1207static char *fetch_pack_index(unsigned char *sha1, const char *base_url)
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1208{
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1209 char *url, *tmp;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1210 struct strbuf buf = STRBUF_INIT;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1211
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1212 if (http_is_verbose)
Shawn O. Pearce162eb5f2010-04-19 14:23:05[diff] [blame]1213 fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1));
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1214
1215 end_url_with_slash(&buf, base_url);
Shawn O. Pearce162eb5f2010-04-19 14:23:05[diff] [blame]1216 strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1));
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1217 url = strbuf_detach(&buf, NULL);
1218
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1219 strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1));
1220 tmp = strbuf_detach(&buf, NULL);
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1221
Ramsay Jones70900ed2013-10-24 20:17:19[diff] [blame]1222 if (http_get_file(url, tmp, NULL) != HTTP_OK) {
Pete Wyckoff82247e92012-04-30 00:28:45[diff] [blame]1223 error("Unable to get pack index %s", url);
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1224 free(tmp);
1225 tmp = NULL;
1226 }
1227
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1228 free(url);
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1229 return tmp;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1230}
1231
1232static int fetch_and_setup_pack_index(struct packed_git **packs_head,
1233 unsigned char *sha1, const char *base_url)
1234{
1235 struct packed_git *new_pack;
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1236 char *tmp_idx = NULL;
1237 int ret;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1238
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1239 if (has_pack_index(sha1)) {
1240 new_pack = parse_pack_index(sha1, NULL);
1241 if (!new_pack)
1242 return -1; /* parse_pack_index() already issued error message */
1243 goto add_pack;
1244 }
1245
1246 tmp_idx = fetch_pack_index(sha1, base_url);
1247 if (!tmp_idx)
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1248 return -1;
1249
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1250 new_pack = parse_pack_index(sha1, tmp_idx);
1251 if (!new_pack) {
1252 unlink(tmp_idx);
1253 free(tmp_idx);
1254
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1255 return -1; /* parse_pack_index() already issued error message */
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1256 }
1257
1258 ret = verify_pack_index(new_pack);
1259 if (!ret) {
1260 close_pack_index(new_pack);
1261 ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1));
1262 }
1263 free(tmp_idx);
1264 if (ret)
1265 return -1;
1266
1267add_pack:
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1268 new_pack->next = *packs_head;
1269 *packs_head = new_pack;
1270 return 0;
1271}
1272
1273int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
1274{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1275 struct http_get_options options = {0};
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1276 int ret = 0, i = 0;
1277 char *url, *data;
1278 struct strbuf buf = STRBUF_INIT;
1279 unsigned char sha1[20];
1280
1281 end_url_with_slash(&buf, base_url);
1282 strbuf_addstr(&buf, "objects/info/packs");
1283 url = strbuf_detach(&buf, NULL);
1284
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1285 options.no_cache = 1;
1286 ret = http_get_strbuf(url, &buf, &options);
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1287 if (ret != HTTP_OK)
1288 goto cleanup;
1289
1290 data = buf.buf;
1291 while (i < buf.len) {
1292 switch (data[i]) {
1293 case 'P':
1294 i++;
1295 if (i + 52 <= buf.len &&
Christian Couder59556542013-11-30 20:55:40[diff] [blame]1296 starts_with(data + i, " pack-") &&
1297 starts_with(data + i + 46, ".pack\n")) {
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1298 get_sha1_hex(data + i + 6, sha1);
1299 fetch_and_setup_pack_index(packs_head, sha1,
1300 base_url);
1301 i += 51;
1302 break;
1303 }
1304 default:
1305 while (i < buf.len && data[i] != '\n')
1306 i++;
1307 }
1308 i++;
1309 }
1310
1311cleanup:
1312 free(url);
1313 return ret;
1314}
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1315
1316void release_http_pack_request(struct http_pack_request *preq)
1317{
1318 if (preq->packfile != NULL) {
1319 fclose(preq->packfile);
1320 preq->packfile = NULL;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1321 }
1322 if (preq->range_header != NULL) {
1323 curl_slist_free_all(preq->range_header);
1324 preq->range_header = NULL;
1325 }
1326 preq->slot = NULL;
1327 free(preq->url);
1328}
1329
1330int finish_http_pack_request(struct http_pack_request *preq)
1331{
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1332 struct packed_git **lst;
Shawn O. Pearce021ab6f2010-04-17 20:07:36[diff] [blame]1333 struct packed_git *p = preq->target;
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1334 char *tmp_idx;
1335 struct child_process ip;
1336 const char *ip_argv[8];
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1337
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1338 close_pack_index(p);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1339
Shawn O. Pearce30652742010-04-17 20:07:37[diff] [blame]1340 fclose(preq->packfile);
1341 preq->packfile = NULL;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1342
1343 lst = preq->lst;
Shawn O. Pearce021ab6f2010-04-17 20:07:36[diff] [blame]1344 while (*lst != p)
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1345 lst = &((*lst)->next);
1346 *lst = (*lst)->next;
1347
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1348 tmp_idx = xstrdup(preq->tmpfile);
1349 strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"),
1350 ".idx.temp");
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1351
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1352 ip_argv[0] = "index-pack";
1353 ip_argv[1] = "-o";
1354 ip_argv[2] = tmp_idx;
1355 ip_argv[3] = preq->tmpfile;
1356 ip_argv[4] = NULL;
1357
1358 memset(&ip, 0, sizeof(ip));
1359 ip.argv = ip_argv;
1360 ip.git_cmd = 1;
1361 ip.no_stdin = 1;
1362 ip.no_stdout = 1;
1363
1364 if (run_command(&ip)) {
1365 unlink(preq->tmpfile);
1366 unlink(tmp_idx);
1367 free(tmp_idx);
1368 return -1;
1369 }
1370
1371 unlink(sha1_pack_index_name(p->sha1));
1372
1373 if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1))
1374 || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) {
1375 free(tmp_idx);
1376 return -1;
1377 }
1378
1379 install_packed_git(p);
1380 free(tmp_idx);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1381 return 0;
1382}
1383
1384struct http_pack_request *new_http_pack_request(
1385 struct packed_git *target, const char *base_url)
1386{
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1387 long prev_posn = 0;
1388 char range[RANGE_HEADER_SIZE];
1389 struct strbuf buf = STRBUF_INIT;
1390 struct http_pack_request *preq;
1391
Tay Ray Chuanec99c9a2011-08-03 11:54:03[diff] [blame]1392 preq = xcalloc(1, sizeof(*preq));
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1393 preq->target = target;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1394
1395 end_url_with_slash(&buf, base_url);
1396 strbuf_addf(&buf, "objects/pack/pack-%s.pack",
1397 sha1_to_hex(target->sha1));
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1398 preq->url = strbuf_detach(&buf, NULL);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1399
Tay Ray Chuan90d05712010-04-19 14:46:43[diff] [blame]1400 snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp",
1401 sha1_pack_name(target->sha1));
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1402 preq->packfile = fopen(preq->tmpfile, "a");
1403 if (!preq->packfile) {
1404 error("Unable to open local file %s for pack",
1405 preq->tmpfile);
1406 goto abort;
1407 }
1408
1409 preq->slot = get_active_slot();
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1410 curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile);
1411 curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1412 curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1413 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1414 no_pragma_header);
1415
1416 /*
1417 * If there is data present from a previous transfer attempt,
1418 * resume where it left off
1419 */
1420 prev_posn = ftell(preq->packfile);
1421 if (prev_posn>0) {
1422 if (http_is_verbose)
1423 fprintf(stderr,
1424 "Resuming fetch of pack %s at byte %ld\n",
1425 sha1_to_hex(target->sha1), prev_posn);
1426 sprintf(range, "Range: bytes=%ld-", prev_posn);
1427 preq->range_header = curl_slist_append(NULL, range);
1428 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1429 preq->range_header);
1430 }
1431
1432 return preq;
1433
1434abort:
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1435 free(preq->url);
Tay Ray Chuan5ae9ebf2009-08-10 15:55:48[diff] [blame]1436 free(preq);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1437 return NULL;
1438}
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1439
1440/* Helpers for fetching objects (loose) */
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1441static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb,
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1442 void *data)
1443{
1444 unsigned char expn[4096];
1445 size_t size = eltsize * nmemb;
1446 int posn = 0;
1447 struct http_object_request *freq =
1448 (struct http_object_request *)data;
1449 do {
1450 ssize_t retval = xwrite(freq->localfile,
1451 (char *) ptr + posn, size - posn);
1452 if (retval < 0)
1453 return posn;
1454 posn += retval;
1455 } while (posn < size);
1456
1457 freq->stream.avail_in = size;
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1458 freq->stream.next_in = (void *)ptr;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1459 do {
1460 freq->stream.next_out = expn;
1461 freq->stream.avail_out = sizeof(expn);
1462 freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH);
1463 git_SHA1_Update(&freq->c, expn,
1464 sizeof(expn) - freq->stream.avail_out);
1465 } while (freq->stream.avail_in && freq->zret == Z_OK);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1466 return size;
1467}
1468
1469struct http_object_request *new_http_object_request(const char *base_url,
1470 unsigned char *sha1)
1471{
1472 char *hex = sha1_to_hex(sha1);
Michael Haggerty30d6c6e2014-02-21 16:32:05[diff] [blame]1473 const char *filename;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1474 char prevfile[PATH_MAX];
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1475 int prevlocal;
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1476 char prev_buf[PREV_BUF_SIZE];
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1477 ssize_t prev_read = 0;
1478 long prev_posn = 0;
1479 char range[RANGE_HEADER_SIZE];
1480 struct curl_slist *range_header = NULL;
1481 struct http_object_request *freq;
1482
Tay Ray Chuanec99c9a2011-08-03 11:54:03[diff] [blame]1483 freq = xcalloc(1, sizeof(*freq));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1484 hashcpy(freq->sha1, sha1);
1485 freq->localfile = -1;
1486
1487 filename = sha1_file_name(sha1);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1488 snprintf(freq->tmpfile, sizeof(freq->tmpfile),
1489 "%s.temp", filename);
1490
1491 snprintf(prevfile, sizeof(prevfile), "%s.prev", filename);
1492 unlink_or_warn(prevfile);
1493 rename(freq->tmpfile, prevfile);
1494 unlink_or_warn(freq->tmpfile);
1495
1496 if (freq->localfile != -1)
1497 error("fd leakage in start: %d", freq->localfile);
1498 freq->localfile = open(freq->tmpfile,
1499 O_WRONLY | O_CREAT | O_EXCL, 0666);
1500 /*
1501 * This could have failed due to the "lazy directory creation";
1502 * try to mkdir the last path component.
1503 */
1504 if (freq->localfile < 0 && errno == ENOENT) {
1505 char *dir = strrchr(freq->tmpfile, '/');
1506 if (dir) {
1507 *dir = 0;
1508 mkdir(freq->tmpfile, 0777);
1509 *dir = '/';
1510 }
1511 freq->localfile = open(freq->tmpfile,
1512 O_WRONLY | O_CREAT | O_EXCL, 0666);
1513 }
1514
1515 if (freq->localfile < 0) {
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1516 error("Couldn't create temporary file %s: %s",
1517 freq->tmpfile, strerror(errno));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1518 goto abort;
1519 }
1520
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1521 git_inflate_init(&freq->stream);
1522
1523 git_SHA1_Init(&freq->c);
1524
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1525 freq->url = get_remote_object_url(base_url, hex, 0);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1526
1527 /*
1528 * If a previous temp file is present, process what was already
1529 * fetched.
1530 */
1531 prevlocal = open(prevfile, O_RDONLY);
1532 if (prevlocal != -1) {
1533 do {
1534 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
1535 if (prev_read>0) {
1536 if (fwrite_sha1_file(prev_buf,
1537 1,
1538 prev_read,
1539 freq) == prev_read) {
1540 prev_posn += prev_read;
1541 } else {
1542 prev_read = -1;
1543 }
1544 }
1545 } while (prev_read > 0);
1546 close(prevlocal);
1547 }
1548 unlink_or_warn(prevfile);
1549
1550 /*
1551 * Reset inflate/SHA1 if there was an error reading the previous temp
1552 * file; also rewind to the beginning of the local file.
1553 */
1554 if (prev_read == -1) {
1555 memset(&freq->stream, 0, sizeof(freq->stream));
1556 git_inflate_init(&freq->stream);
1557 git_SHA1_Init(&freq->c);
1558 if (prev_posn>0) {
1559 prev_posn = 0;
1560 lseek(freq->localfile, 0, SEEK_SET);
Jeff Lasslett0c4f21e2009-08-10 16:05:06[diff] [blame]1561 if (ftruncate(freq->localfile, 0) < 0) {
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1562 error("Couldn't truncate temporary file %s: %s",
1563 freq->tmpfile, strerror(errno));
Jeff Lasslett0c4f21e2009-08-10 16:05:06[diff] [blame]1564 goto abort;
1565 }
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1566 }
1567 }
1568
1569 freq->slot = get_active_slot();
1570
1571 curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
1572 curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
1573 curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1574 curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1575 curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
1576
1577 /*
1578 * If we have successfully processed data from a previous fetch
1579 * attempt, only fetch the data we don't already have.
1580 */
1581 if (prev_posn>0) {
1582 if (http_is_verbose)
1583 fprintf(stderr,
1584 "Resuming fetch of object %s at byte %ld\n",
1585 hex, prev_posn);
1586 sprintf(range, "Range: bytes=%ld-", prev_posn);
1587 range_header = curl_slist_append(range_header, range);
1588 curl_easy_setopt(freq->slot->curl,
1589 CURLOPT_HTTPHEADER, range_header);
1590 }
1591
1592 return freq;
1593
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1594abort:
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1595 free(freq->url);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1596 free(freq);
1597 return NULL;
1598}
1599
1600void process_http_object_request(struct http_object_request *freq)
1601{
1602 if (freq->slot == NULL)
1603 return;
1604 freq->curl_result = freq->slot->curl_result;
1605 freq->http_code = freq->slot->http_code;
1606 freq->slot = NULL;
1607}
1608
1609int finish_http_object_request(struct http_object_request *freq)
1610{
1611 struct stat st;
1612
1613 close(freq->localfile);
1614 freq->localfile = -1;
1615
1616 process_http_object_request(freq);
1617
1618 if (freq->http_code == 416) {
Thiago Farinabd757c12010-01-03 16:20:30[diff] [blame]1619 warning("requested range invalid; we may already have all the data.");
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1620 } else if (freq->curl_result != CURLE_OK) {
1621 if (stat(freq->tmpfile, &st) == 0)
1622 if (st.st_size == 0)
1623 unlink_or_warn(freq->tmpfile);
1624 return -1;
1625 }
1626
1627 git_inflate_end(&freq->stream);
1628 git_SHA1_Final(freq->real_sha1, &freq->c);
1629 if (freq->zret != Z_STREAM_END) {
1630 unlink_or_warn(freq->tmpfile);
1631 return -1;
1632 }
1633 if (hashcmp(freq->sha1, freq->real_sha1)) {
1634 unlink_or_warn(freq->tmpfile);
1635 return -1;
1636 }
1637 freq->rename =
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1638 move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1639
1640 return freq->rename;
1641}
1642
1643void abort_http_object_request(struct http_object_request *freq)
1644{
1645 unlink_or_warn(freq->tmpfile);
1646
1647 release_http_object_request(freq);
1648}
1649
1650void release_http_object_request(struct http_object_request *freq)
1651{
1652 if (freq->localfile != -1) {
1653 close(freq->localfile);
1654 freq->localfile = -1;
1655 }
1656 if (freq->url != NULL) {
1657 free(freq->url);
1658 freq->url = NULL;
1659 }
Tay Ray Chuan4b9fa0e2009-08-26 12:20:53[diff] [blame]1660 if (freq->slot != NULL) {
1661 freq->slot->callback_func = NULL;
1662 freq->slot->callback_data = NULL;
1663 release_active_slot(freq->slot);
1664 freq->slot = NULL;
1665 }
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1666}