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chromium / external / github.com / git / git / refs/tags/v2.2.0-rc0 / . / http.c
blob: 040f362a6a299618288c9249588ceb7aed6f3011 [file] [log] [blame]
David Aguilar1c4b6602014-09-14 07:40:45[diff] [blame]1#include "git-compat-util.h"
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]2#include "http.h"
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]3#include "pack.h"
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]4#include "sideband.h"
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]5#include "run-command.h"
Gabriel Coronaf39f72d2010-11-14 01:51:15[diff] [blame]6#include "url.h"
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]7#include "urlmatch.h"
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]8#include "credential.h"
Jeff King745c7c82012-06-02 19:03:08[diff] [blame]9#include "version.h"
Jeff King047ec602013-02-20 20:02:45[diff] [blame]10#include "pkt-line.h"
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]11
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]12int active_requests;
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]13int http_is_verbose;
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]14size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]15
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]16#if LIBCURL_VERSION_NUM >= 0x070a06
17#define LIBCURL_CAN_HANDLE_AUTH_ANY
18#endif
19
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]20static int min_curl_sessions = 1;
21static int curl_session_count;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]22#ifdef USE_CURL_MULTI
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]23static int max_requests = -1;
24static CURLM *curlm;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]25#endif
26#ifndef NO_CURL_EASY_DUPHANDLE
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]27static CURL *curl_default;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]28#endif
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]29
30#define PREV_BUF_SIZE 4096
31#define RANGE_HEADER_SIZE 30
32
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]33char curl_errorstr[CURL_ERROR_SIZE];
34
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]35static int curl_ssl_verify = -1;
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]36static int curl_ssl_try;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]37static const char *ssl_cert;
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]38#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]39static const char *ssl_key;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]40#endif
41#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]42static const char *ssl_capath;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]43#endif
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]44static const char *ssl_cainfo;
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]45static long curl_low_speed_limit = -1;
46static long curl_low_speed_time = -1;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]47static int curl_ftp_no_epsv;
48static const char *curl_http_proxy;
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]49static const char *curl_cookie_file;
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]50static int curl_save_cookies;
Jeff King2501aff2013-09-28 08:31:45[diff] [blame]51struct credential http_auth = CREDENTIAL_INIT;
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]52static int http_proactive_auth;
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]53static const char *user_agent;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]54
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]55#if LIBCURL_VERSION_NUM >= 0x071700
56/* Use CURLOPT_KEYPASSWD as is */
57#elif LIBCURL_VERSION_NUM >= 0x070903
58#define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
59#else
60#define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
61#endif
62
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]63static struct credential cert_auth = CREDENTIAL_INIT;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]64static int ssl_cert_password_required;
65
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]66static struct curl_slist *pragma_header;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]67static struct curl_slist *no_pragma_header;
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]68
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]69static struct active_request_slot *active_queue_head;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]70
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]71size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]72{
73 size_t size = eltsize * nmemb;
Junio C Hamanof444e522008-07-04 07:37:40[diff] [blame]74 struct buffer *buffer = buffer_;
75
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]76 if (size > buffer->buf.len - buffer->posn)
77 size = buffer->buf.len - buffer->posn;
78 memcpy(ptr, buffer->buf.buf + buffer->posn, size);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]79 buffer->posn += size;
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]80
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]81 return size;
82}
83
Martin Storsjö3944ba02009-04-01 16:48:24[diff] [blame]84#ifndef NO_CURL_IOCTL
85curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp)
86{
87 struct buffer *buffer = clientp;
88
89 switch (cmd) {
90 case CURLIOCMD_NOP:
91 return CURLIOE_OK;
92
93 case CURLIOCMD_RESTARTREAD:
94 buffer->posn = 0;
95 return CURLIOE_OK;
96
97 default:
98 return CURLIOE_UNKNOWNCMD;
99 }
100}
101#endif
102
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]103size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]104{
105 size_t size = eltsize * nmemb;
Junio C Hamanof444e522008-07-04 07:37:40[diff] [blame]106 struct strbuf *buffer = buffer_;
107
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]108 strbuf_add(buffer, ptr, size);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]109 return size;
110}
111
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]112size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]113{
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]114 return eltsize * nmemb;
115}
116
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]117#ifdef USE_CURL_MULTI
118static void process_curl_messages(void)
119{
120 int num_messages;
121 struct active_request_slot *slot;
122 CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages);
123
124 while (curl_message != NULL) {
125 if (curl_message->msg == CURLMSG_DONE) {
126 int curl_result = curl_message->data.result;
127 slot = active_queue_head;
128 while (slot != NULL &&
129 slot->curl != curl_message->easy_handle)
130 slot = slot->next;
131 if (slot != NULL) {
132 curl_multi_remove_handle(curlm, slot->curl);
133 slot->curl_result = curl_result;
134 finish_active_slot(slot);
135 } else {
136 fprintf(stderr, "Received DONE message for unknown request!\n");
137 }
138 } else {
139 fprintf(stderr, "Unknown CURL message received: %d\n",
140 (int)curl_message->msg);
141 }
142 curl_message = curl_multi_info_read(curlm, &num_messages);
143 }
144}
145#endif
146
Johannes Schindelinef90d6d2008-05-14 17:46:53[diff] [blame]147static int http_options(const char *var, const char *value, void *cb)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]148{
149 if (!strcmp("http.sslverify", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]150 curl_ssl_verify = git_config_bool(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]151 return 0;
152 }
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]153 if (!strcmp("http.sslcert", var))
154 return git_config_string(&ssl_cert, var, value);
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]155#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]156 if (!strcmp("http.sslkey", var))
157 return git_config_string(&ssl_key, var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]158#endif
159#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]160 if (!strcmp("http.sslcapath", var))
161 return git_config_string(&ssl_capath, var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]162#endif
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]163 if (!strcmp("http.sslcainfo", var))
164 return git_config_string(&ssl_cainfo, var, value);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]165 if (!strcmp("http.sslcertpasswordprotected", var)) {
Junio C Hamano3f4ccd22013-07-12 18:52:47[diff] [blame]166 ssl_cert_password_required = git_config_bool(var, value);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]167 return 0;
168 }
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]169 if (!strcmp("http.ssltry", var)) {
170 curl_ssl_try = git_config_bool(var, value);
171 return 0;
172 }
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]173 if (!strcmp("http.minsessions", var)) {
174 min_curl_sessions = git_config_int(var, value);
175#ifndef USE_CURL_MULTI
176 if (min_curl_sessions > 1)
177 min_curl_sessions = 1;
178#endif
179 return 0;
180 }
Junio C Hamanoa6080a02007-06-07 07:04:01[diff] [blame]181#ifdef USE_CURL_MULTI
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]182 if (!strcmp("http.maxrequests", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]183 max_requests = git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]184 return 0;
185 }
186#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]187 if (!strcmp("http.lowspeedlimit", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]188 curl_low_speed_limit = (long)git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]189 return 0;
190 }
191 if (!strcmp("http.lowspeedtime", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]192 curl_low_speed_time = (long)git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]193 return 0;
194 }
195
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]196 if (!strcmp("http.noepsv", var)) {
197 curl_ftp_no_epsv = git_config_bool(var, value);
198 return 0;
199 }
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]200 if (!strcmp("http.proxy", var))
201 return git_config_string(&curl_http_proxy, var, value);
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]202
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]203 if (!strcmp("http.cookiefile", var))
204 return git_config_string(&curl_cookie_file, var, value);
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]205 if (!strcmp("http.savecookies", var)) {
206 curl_save_cookies = git_config_bool(var, value);
207 return 0;
208 }
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]209
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]210 if (!strcmp("http.postbuffer", var)) {
211 http_post_buffer = git_config_int(var, value);
212 if (http_post_buffer < LARGE_PACKET_MAX)
213 http_post_buffer = LARGE_PACKET_MAX;
214 return 0;
215 }
216
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]217 if (!strcmp("http.useragent", var))
218 return git_config_string(&user_agent, var, value);
219
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]220 /* Fall back on the default ones */
Johannes Schindelinef90d6d2008-05-14 17:46:53[diff] [blame]221 return git_default_config(var, value, cb);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]222}
223
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]224static void init_curl_http_auth(CURL *result)
225{
Jeff King6f4c3472012-04-13 06:19:25[diff] [blame]226 if (!http_auth.username)
227 return;
228
229 credential_fill(&http_auth);
230
231#if LIBCURL_VERSION_NUM >= 0x071301
232 curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username);
233 curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password);
234#else
235 {
Jeff Kingaa0834a2012-04-13 06:18:35[diff] [blame]236 static struct strbuf up = STRBUF_INIT;
Brandon Caseya94cf2c2013-06-19 02:43:49[diff] [blame]237 /*
238 * Note that we assume we only ever have a single set of
239 * credentials in a given program run, so we do not have
240 * to worry about updating this buffer, only setting its
241 * initial value.
242 */
243 if (!up.len)
244 strbuf_addf(&up, "%s:%s",
245 http_auth.username, http_auth.password);
Jeff Kingaa0834a2012-04-13 06:18:35[diff] [blame]246 curl_easy_setopt(result, CURLOPT_USERPWD, up.buf);
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]247 }
Jeff King6f4c3472012-04-13 06:19:25[diff] [blame]248#endif
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]249}
250
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]251static int has_cert_password(void)
252{
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]253 if (ssl_cert == NULL || ssl_cert_password_required != 1)
254 return 0;
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]255 if (!cert_auth.password) {
256 cert_auth.protocol = xstrdup("cert");
Rene Bredlau75e9a402012-12-21 16:31:19[diff] [blame]257 cert_auth.username = xstrdup("");
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]258 cert_auth.path = xstrdup(ssl_cert);
259 credential_fill(&cert_auth);
260 }
261 return 1;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]262}
263
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]264#if LIBCURL_VERSION_NUM >= 0x071900
265static void set_curl_keepalive(CURL *c)
266{
267 curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1);
268}
269
270#elif LIBCURL_VERSION_NUM >= 0x071000
Eric Wonga15d0692013-10-12 22:29:40[diff] [blame]271static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type)
272{
273 int ka = 1;
274 int rc;
275 socklen_t len = (socklen_t)sizeof(ka);
276
277 if (type != CURLSOCKTYPE_IPCXN)
278 return 0;
279
280 rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len);
281 if (rc < 0)
282 warning("unable to set SO_KEEPALIVE on socket %s",
283 strerror(errno));
284
285 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
286}
287
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]288static void set_curl_keepalive(CURL *c)
289{
290 curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
291}
292
293#else
294static void set_curl_keepalive(CURL *c)
295{
296 /* not supported on older curl versions */
297}
298#endif
299
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]300static CURL *get_curl_handle(void)
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]301{
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]302 CURL *result = curl_easy_init();
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]303
Bernhard Reiterfaa38072014-08-13 17:31:24[diff] [blame]304 if (!result)
305 die("curl_easy_init failed");
306
Junio C Hamanoa5ccc592008-02-21 23:10:37[diff] [blame]307 if (!curl_ssl_verify) {
308 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0);
309 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0);
310 } else {
311 /* Verify authenticity of the peer's certificate */
312 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1);
313 /* The name in the cert must match whom we tried to connect */
314 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
315 }
316
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]317#if LIBCURL_VERSION_NUM >= 0x070907
318 curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
319#endif
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]320#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
Junio C Hamano525ecd22009-12-28 18:04:24[diff] [blame]321 curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]322#endif
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]323
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]324 if (http_proactive_auth)
325 init_curl_http_auth(result);
326
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]327 if (ssl_cert != NULL)
328 curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]329 if (has_cert_password())
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]330 curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password);
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]331#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]332 if (ssl_key != NULL)
333 curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
334#endif
335#if LIBCURL_VERSION_NUM >= 0x070908
336 if (ssl_capath != NULL)
337 curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
338#endif
339 if (ssl_cainfo != NULL)
340 curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]341
342 if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
343 curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
344 curl_low_speed_limit);
345 curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME,
346 curl_low_speed_time);
347 }
348
349 curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1);
Tay Ray Chuan311e2ea2010-09-25 04:20:35[diff] [blame]350#if LIBCURL_VERSION_NUM >= 0x071301
351 curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
352#elif LIBCURL_VERSION_NUM >= 0x071101
353 curl_easy_setopt(result, CURLOPT_POST301, 1);
354#endif
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]355
Mark Wooding7982d742006-02-01 11:44:37[diff] [blame]356 if (getenv("GIT_CURL_VERBOSE"))
357 curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
358
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]359 curl_easy_setopt(result, CURLOPT_USERAGENT,
Jeff King745c7c82012-06-02 19:03:08[diff] [blame]360 user_agent ? user_agent : git_user_agent());
Nick Hengeveld20fc9bc2006-04-04 17:11:29[diff] [blame]361
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]362 if (curl_ftp_no_epsv)
363 curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
364
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]365#ifdef CURLOPT_USE_SSL
366 if (curl_ssl_try)
367 curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
368#endif
369
Nelson Benitez Leondd613992012-03-02 13:55:57[diff] [blame]370 if (curl_http_proxy) {
Sam Vilain9c5665a2007-11-23 00:07:00[diff] [blame]371 curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
Nelson Benitez Leondd613992012-03-02 13:55:57[diff] [blame]372 curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
373 }
Sam Vilain9c5665a2007-11-23 00:07:00[diff] [blame]374
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]375 set_curl_keepalive(result);
Eric Wonga15d0692013-10-12 22:29:40[diff] [blame]376
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]377 return result;
378}
379
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]380static void set_from_env(const char **var, const char *envname)
381{
382 const char *val = getenv(envname);
383 if (val)
384 *var = val;
385}
386
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]387void http_init(struct remote *remote, const char *url, int proactive_auth)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]388{
389 char *low_speed_limit;
390 char *low_speed_time;
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]391 char *normalized_url;
392 struct urlmatch_config config = { STRING_LIST_INIT_DUP };
393
394 config.section = "http";
395 config.key = NULL;
396 config.collect_fn = http_options;
397 config.cascade_fn = git_default_config;
398 config.cb = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]399
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]400 http_is_verbose = 0;
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]401 normalized_url = url_normalize(url, &config.url);
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]402
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]403 git_config(urlmatch_config_entry, &config);
404 free(normalized_url);
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]405
Bernhard Reiterfaa38072014-08-13 17:31:24[diff] [blame]406 if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK)
407 die("curl_global_init failed");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]408
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]409 http_proactive_auth = proactive_auth;
410
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]411 if (remote && remote->http_proxy)
412 curl_http_proxy = xstrdup(remote->http_proxy);
413
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]414 pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache");
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]415 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]416
417#ifdef USE_CURL_MULTI
418 {
419 char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
420 if (http_max_requests != NULL)
421 max_requests = atoi(http_max_requests);
422 }
423
424 curlm = curl_multi_init();
Jeff King8837eb42014-08-17 07:35:53[diff] [blame]425 if (!curlm)
426 die("curl_multi_init failed");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]427#endif
428
429 if (getenv("GIT_SSL_NO_VERIFY"))
430 curl_ssl_verify = 0;
431
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]432 set_from_env(&ssl_cert, "GIT_SSL_CERT");
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]433#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]434 set_from_env(&ssl_key, "GIT_SSL_KEY");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]435#endif
436#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]437 set_from_env(&ssl_capath, "GIT_SSL_CAPATH");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]438#endif
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]439 set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]440
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]441 set_from_env(&user_agent, "GIT_HTTP_USER_AGENT");
442
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]443 low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
444 if (low_speed_limit != NULL)
445 curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
446 low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME");
447 if (low_speed_time != NULL)
448 curl_low_speed_time = strtol(low_speed_time, NULL, 10);
449
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]450 if (curl_ssl_verify == -1)
451 curl_ssl_verify = 1;
452
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]453 curl_session_count = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]454#ifdef USE_CURL_MULTI
455 if (max_requests < 1)
456 max_requests = DEFAULT_MAX_REQUESTS;
457#endif
458
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]459 if (getenv("GIT_CURL_FTP_NO_EPSV"))
460 curl_ftp_no_epsv = 1;
461
Jeff Kingdeba4932011-10-14 07:40:40[diff] [blame]462 if (url) {
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]463 credential_from_url(&http_auth, url);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]464 if (!ssl_cert_password_required &&
465 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
Christian Couder59556542013-11-30 20:55:40[diff] [blame]466 starts_with(url, "https://"))
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]467 ssl_cert_password_required = 1;
468 }
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]469
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]470#ifndef NO_CURL_EASY_DUPHANDLE
471 curl_default = get_curl_handle();
472#endif
473}
474
475void http_cleanup(void)
476{
477 struct active_request_slot *slot = active_queue_head;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]478
479 while (slot != NULL) {
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]480 struct active_request_slot *next = slot->next;
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]481 if (slot->curl != NULL) {
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]482#ifdef USE_CURL_MULTI
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]483 curl_multi_remove_handle(curlm, slot->curl);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]484#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]485 curl_easy_cleanup(slot->curl);
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]486 }
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]487 free(slot);
488 slot = next;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]489 }
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]490 active_queue_head = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]491
492#ifndef NO_CURL_EASY_DUPHANDLE
493 curl_easy_cleanup(curl_default);
494#endif
495
496#ifdef USE_CURL_MULTI
497 curl_multi_cleanup(curlm);
498#endif
499 curl_global_cleanup();
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]500
501 curl_slist_free_all(pragma_header);
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]502 pragma_header = NULL;
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]503
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]504 curl_slist_free_all(no_pragma_header);
505 no_pragma_header = NULL;
506
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]507 if (curl_http_proxy) {
Miklos Vajnae4a80ec2008-12-07 00:45:37[diff] [blame]508 free((void *)curl_http_proxy);
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]509 curl_http_proxy = NULL;
510 }
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]511
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]512 if (cert_auth.password != NULL) {
513 memset(cert_auth.password, 0, strlen(cert_auth.password));
514 free(cert_auth.password);
515 cert_auth.password = NULL;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]516 }
517 ssl_cert_password_required = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]518}
519
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]520struct active_request_slot *get_active_slot(void)
521{
522 struct active_request_slot *slot = active_queue_head;
523 struct active_request_slot *newslot;
524
525#ifdef USE_CURL_MULTI
526 int num_transfers;
527
528 /* Wait for a slot to open up if the queue is full */
529 while (active_requests >= max_requests) {
530 curl_multi_perform(curlm, &num_transfers);
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]531 if (num_transfers < active_requests)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]532 process_curl_messages();
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]533 }
534#endif
535
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]536 while (slot != NULL && slot->in_use)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]537 slot = slot->next;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]538
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]539 if (slot == NULL) {
540 newslot = xmalloc(sizeof(*newslot));
541 newslot->curl = NULL;
542 newslot->in_use = 0;
543 newslot->next = NULL;
544
545 slot = active_queue_head;
546 if (slot == NULL) {
547 active_queue_head = newslot;
548 } else {
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]549 while (slot->next != NULL)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]550 slot = slot->next;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]551 slot->next = newslot;
552 }
553 slot = newslot;
554 }
555
556 if (slot->curl == NULL) {
557#ifdef NO_CURL_EASY_DUPHANDLE
558 slot->curl = get_curl_handle();
559#else
560 slot->curl = curl_easy_duphandle(curl_default);
561#endif
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]562 curl_session_count++;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]563 }
564
565 active_requests++;
566 slot->in_use = 1;
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]567 slot->results = NULL;
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]568 slot->finished = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]569 slot->callback_data = NULL;
570 slot->callback_func = NULL;
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]571 curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file);
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]572 if (curl_save_cookies)
573 curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]574 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]575 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
Nick Hengeveld90949502006-05-31 23:25:03[diff] [blame]576 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
577 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL);
578 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL);
Junio C Hamano1e418272011-04-26 15:04:49[diff] [blame]579 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL);
Nick Hengeveld90949502006-05-31 23:25:03[diff] [blame]580 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0);
581 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
Jeff Kingb793acf2013-04-16 00:30:38[diff] [blame]582 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
Jeff Kingdfa17252012-04-10 09:53:40[diff] [blame]583 if (http_auth.password)
584 init_curl_http_auth(slot->curl);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]585
586 return slot;
587}
588
589int start_active_slot(struct active_request_slot *slot)
590{
591#ifdef USE_CURL_MULTI
592 CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]593 int num_transfers;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]594
595 if (curlm_result != CURLM_OK &&
596 curlm_result != CURLM_CALL_MULTI_PERFORM) {
597 active_requests--;
598 slot->in_use = 0;
599 return 0;
600 }
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]601
602 /*
603 * We know there must be something to do, since we just added
604 * something.
605 */
606 curl_multi_perform(curlm, &num_transfers);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]607#endif
608 return 1;
609}
610
611#ifdef USE_CURL_MULTI
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]612struct fill_chain {
613 void *data;
614 int (*fill)(void *);
615 struct fill_chain *next;
616};
617
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]618static struct fill_chain *fill_cfg;
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]619
620void add_fill_function(void *data, int (*fill)(void *))
621{
Dotan Barake8eec712008-09-09 18:57:10[diff] [blame]622 struct fill_chain *new = xmalloc(sizeof(*new));
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]623 struct fill_chain **linkp = &fill_cfg;
624 new->data = data;
625 new->fill = fill;
626 new->next = NULL;
627 while (*linkp)
628 linkp = &(*linkp)->next;
629 *linkp = new;
630}
631
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]632void fill_active_slots(void)
633{
634 struct active_request_slot *slot = active_queue_head;
635
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]636 while (active_requests < max_requests) {
637 struct fill_chain *fill;
638 for (fill = fill_cfg; fill; fill = fill->next)
639 if (fill->fill(fill->data))
640 break;
641
642 if (!fill)
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]643 break;
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]644 }
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]645
646 while (slot != NULL) {
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]647 if (!slot->in_use && slot->curl != NULL
648 && curl_session_count > min_curl_sessions) {
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]649 curl_easy_cleanup(slot->curl);
650 slot->curl = NULL;
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]651 curl_session_count--;
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]652 }
653 slot = slot->next;
654 }
655}
656
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]657void step_active_slots(void)
658{
659 int num_transfers;
660 CURLMcode curlm_result;
661
662 do {
663 curlm_result = curl_multi_perform(curlm, &num_transfers);
664 } while (curlm_result == CURLM_CALL_MULTI_PERFORM);
665 if (num_transfers < active_requests) {
666 process_curl_messages();
667 fill_active_slots();
668 }
669}
670#endif
671
672void run_active_slot(struct active_request_slot *slot)
673{
674#ifdef USE_CURL_MULTI
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]675 fd_set readfds;
676 fd_set writefds;
677 fd_set excfds;
678 int max_fd;
679 struct timeval select_timeout;
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]680 int finished = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]681
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]682 slot->finished = &finished;
683 while (!finished) {
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]684 step_active_slots();
685
Mika Fischerdf26c472011-11-04 14:19:27[diff] [blame]686 if (slot->in_use) {
Mika Fischereb56c822011-11-04 14:19:26[diff] [blame]687#if LIBCURL_VERSION_NUM >= 0x070f04
688 long curl_timeout;
689 curl_multi_timeout(curlm, &curl_timeout);
690 if (curl_timeout == 0) {
691 continue;
692 } else if (curl_timeout == -1) {
693 select_timeout.tv_sec = 0;
694 select_timeout.tv_usec = 50000;
695 } else {
696 select_timeout.tv_sec = curl_timeout / 1000;
697 select_timeout.tv_usec = (curl_timeout % 1000) * 1000;
698 }
699#else
700 select_timeout.tv_sec = 0;
701 select_timeout.tv_usec = 50000;
702#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]703
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]704 max_fd = -1;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]705 FD_ZERO(&readfds);
706 FD_ZERO(&writefds);
707 FD_ZERO(&excfds);
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]708 curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd);
Mika Fischereb56c822011-11-04 14:19:26[diff] [blame]709
Stefan Zager7202b812012-10-19 21:04:20[diff] [blame]710 /*
711 * It can happen that curl_multi_timeout returns a pathologically
712 * long timeout when curl_multi_fdset returns no file descriptors
713 * to read. See commit message for more details.
714 */
715 if (max_fd < 0 &&
716 (select_timeout.tv_sec > 0 ||
717 select_timeout.tv_usec > 50000)) {
718 select_timeout.tv_sec = 0;
719 select_timeout.tv_usec = 50000;
720 }
721
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]722 select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]723 }
724 }
725#else
726 while (slot->in_use) {
727 slot->curl_result = curl_easy_perform(slot->curl);
728 finish_active_slot(slot);
729 }
730#endif
731}
732
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]733static void closedown_active_slot(struct active_request_slot *slot)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]734{
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]735 active_requests--;
736 slot->in_use = 0;
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]737}
738
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]739static void release_active_slot(struct active_request_slot *slot)
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]740{
741 closedown_active_slot(slot);
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]742 if (slot->curl && curl_session_count > min_curl_sessions) {
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]743#ifdef USE_CURL_MULTI
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]744 curl_multi_remove_handle(curlm, slot->curl);
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]745#endif
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]746 curl_easy_cleanup(slot->curl);
747 slot->curl = NULL;
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]748 curl_session_count--;
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]749 }
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]750#ifdef USE_CURL_MULTI
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]751 fill_active_slots();
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]752#endif
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]753}
754
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]755void finish_active_slot(struct active_request_slot *slot)
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]756{
757 closedown_active_slot(slot);
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]758 curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]759
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]760 if (slot->finished != NULL)
761 (*slot->finished) = 1;
762
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]763 /* Store slot results so they can be read after the slot is reused */
764 if (slot->results != NULL) {
765 slot->results->curl_result = slot->curl_result;
766 slot->results->http_code = slot->http_code;
Jeff King0972ccd2013-10-31 06:35:31[diff] [blame]767#if LIBCURL_VERSION_NUM >= 0x070a08
768 curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
769 &slot->results->auth_avail);
770#else
771 slot->results->auth_avail = 0;
772#endif
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]773 }
774
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]775 /* Run callback if appropriate */
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]776 if (slot->callback_func != NULL)
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]777 slot->callback_func(slot->callback_data);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]778}
779
780void finish_all_active_slots(void)
781{
782 struct active_request_slot *slot = active_queue_head;
783
784 while (slot != NULL)
785 if (slot->in_use) {
786 run_active_slot(slot);
787 slot = active_queue_head;
788 } else {
789 slot = slot->next;
790 }
791}
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]792
Tay Ray Chuan5ace9942009-06-06 08:43:43[diff] [blame]793/* Helpers for modifying and creating URLs */
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]794static inline int needs_quote(int ch)
795{
796 if (((ch >= 'A') && (ch <= 'Z'))
797 || ((ch >= 'a') && (ch <= 'z'))
798 || ((ch >= '0') && (ch <= '9'))
799 || (ch == '/')
800 || (ch == '-')
801 || (ch == '.'))
802 return 0;
803 return 1;
804}
805
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]806static char *quote_ref_url(const char *base, const char *ref)
807{
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]808 struct strbuf buf = STRBUF_INIT;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]809 const char *cp;
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]810 int ch;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]811
Tay Ray Chuan5ace9942009-06-06 08:43:43[diff] [blame]812 end_url_with_slash(&buf, base);
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]813
814 for (cp = ref; (ch = *cp) != 0; cp++)
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]815 if (needs_quote(ch))
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]816 strbuf_addf(&buf, "%%%02x", ch);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]817 else
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]818 strbuf_addch(&buf, *cp);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]819
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]820 return strbuf_detach(&buf, NULL);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]821}
822
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]823void append_remote_object_url(struct strbuf *buf, const char *url,
824 const char *hex,
825 int only_two_digit_prefix)
826{
Tay Ray Chuan800324c2009-08-17 09:09:43[diff] [blame]827 end_url_with_slash(buf, url);
828
829 strbuf_addf(buf, "objects/%.*s/", 2, hex);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]830 if (!only_two_digit_prefix)
831 strbuf_addf(buf, "%s", hex+2);
832}
833
834char *get_remote_object_url(const char *url, const char *hex,
835 int only_two_digit_prefix)
836{
837 struct strbuf buf = STRBUF_INIT;
838 append_remote_object_url(&buf, url, hex, only_two_digit_prefix);
839 return strbuf_detach(&buf, NULL);
840}
841
Jeff King19608972012-10-12 07:35:59[diff] [blame]842int handle_curl_result(struct slot_results *results)
Jeff King88097032012-08-27 13:26:04[diff] [blame]843{
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]844 /*
845 * If we see a failing http code with CURLE_OK, we have turned off
846 * FAILONERROR (to keep the server's custom error response), and should
847 * translate the code into failure here.
848 */
849 if (results->curl_result == CURLE_OK &&
850 results->http_code >= 400) {
851 results->curl_result = CURLE_HTTP_RETURNED_ERROR;
852 /*
853 * Normally curl will already have put the "reason phrase"
854 * from the server into curl_errorstr; unfortunately without
855 * FAILONERROR it is lost, so we can give only the numeric
856 * status code.
857 */
858 snprintf(curl_errorstr, sizeof(curl_errorstr),
859 "The requested URL returned error: %ld",
860 results->http_code);
861 }
862
Jeff King88097032012-08-27 13:26:04[diff] [blame]863 if (results->curl_result == CURLE_OK) {
864 credential_approve(&http_auth);
865 return HTTP_OK;
866 } else if (missing_target(results))
867 return HTTP_MISSING_TARGET;
868 else if (results->http_code == 401) {
869 if (http_auth.username && http_auth.password) {
870 credential_reject(&http_auth);
871 return HTTP_NOAUTH;
872 } else {
Jeff King88097032012-08-27 13:26:04[diff] [blame]873 return HTTP_REAUTH;
874 }
875 } else {
Junio C Hamano3503e9a2012-09-12 21:08:05[diff] [blame]876#if LIBCURL_VERSION_NUM >= 0x070c00
Jeff King88097032012-08-27 13:26:04[diff] [blame]877 if (!curl_errorstr[0])
878 strlcpy(curl_errorstr,
879 curl_easy_strerror(results->curl_result),
880 sizeof(curl_errorstr));
Junio C Hamano3503e9a2012-09-12 21:08:05[diff] [blame]881#endif
Jeff King88097032012-08-27 13:26:04[diff] [blame]882 return HTTP_ERROR;
883 }
884}
885
Jeff Kingbeed3362014-02-18 10:34:20[diff] [blame]886int run_one_slot(struct active_request_slot *slot,
887 struct slot_results *results)
888{
889 slot->results = results;
890 if (!start_active_slot(slot)) {
891 snprintf(curl_errorstr, sizeof(curl_errorstr),
892 "failed to start HTTP request");
893 return HTTP_START_FAILED;
894 }
895
896 run_active_slot(slot);
897 return handle_curl_result(results);
898}
899
Jeff King132b70a2013-09-28 08:31:11[diff] [blame]900static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf)
901{
902 char *ptr;
903 CURLcode ret;
904
905 strbuf_reset(buf);
906 ret = curl_easy_getinfo(curl, info, &ptr);
907 if (!ret && ptr)
908 strbuf_addstr(buf, ptr);
909 return ret;
910}
911
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]912/*
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]913 * Check for and extract a content-type parameter. "raw"
914 * should be positioned at the start of the potential
915 * parameter, with any whitespace already removed.
916 *
917 * "name" is the name of the parameter. The value is appended
918 * to "out".
919 */
920static int extract_param(const char *raw, const char *name,
921 struct strbuf *out)
922{
923 size_t len = strlen(name);
924
925 if (strncasecmp(raw, name, len))
926 return -1;
927 raw += len;
928
929 if (*raw != '=')
930 return -1;
931 raw++;
932
Yi EungJunf34a6552014-06-17 22:11:53[diff] [blame]933 while (*raw && !isspace(*raw) && *raw != ';')
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]934 strbuf_addch(out, *raw++);
935 return 0;
936}
937
938/*
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]939 * Extract a normalized version of the content type, with any
940 * spaces suppressed, all letters lowercased, and no trailing ";"
941 * or parameters.
942 *
943 * Note that we will silently remove even invalid whitespace. For
944 * example, "text / plain" is specifically forbidden by RFC 2616,
945 * but "text/plain" is the only reasonable output, and this keeps
946 * our code simple.
947 *
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]948 * If the "charset" argument is not NULL, store the value of any
949 * charset parameter there.
950 *
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]951 * Example:
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]952 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]953 * "text / plain" -> "text/plain"
954 */
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]955static void extract_content_type(struct strbuf *raw, struct strbuf *type,
956 struct strbuf *charset)
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]957{
958 const char *p;
959
960 strbuf_reset(type);
961 strbuf_grow(type, raw->len);
962 for (p = raw->buf; *p; p++) {
963 if (isspace(*p))
964 continue;
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]965 if (*p == ';') {
966 p++;
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]967 break;
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]968 }
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]969 strbuf_addch(type, tolower(*p));
970 }
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]971
972 if (!charset)
973 return;
974
975 strbuf_reset(charset);
976 while (*p) {
Yi EungJunf34a6552014-06-17 22:11:53[diff] [blame]977 while (isspace(*p) || *p == ';')
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]978 p++;
979 if (!extract_param(p, "charset", charset))
980 return;
981 while (*p && !isspace(*p))
982 p++;
983 }
Jeff Kingc553fd12014-05-22 09:36:12[diff] [blame]984
985 if (!charset->len && starts_with(type->buf, "text/"))
986 strbuf_addstr(charset, "ISO-8859-1");
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]987}
988
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]989/* http_request() targets */
990#define HTTP_REQUEST_STRBUF 0
991#define HTTP_REQUEST_FILE 1
992
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]993static int http_request(const char *url,
994 void *result, int target,
995 const struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]996{
997 struct active_request_slot *slot;
998 struct slot_results results;
999 struct curl_slist *headers = NULL;
1000 struct strbuf buf = STRBUF_INIT;
1001 int ret;
1002
1003 slot = get_active_slot();
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1004 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1005
1006 if (result == NULL) {
1007 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
1008 } else {
1009 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
1010 curl_easy_setopt(slot->curl, CURLOPT_FILE, result);
1011
1012 if (target == HTTP_REQUEST_FILE) {
1013 long posn = ftell(result);
1014 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
1015 fwrite);
1016 if (posn > 0) {
1017 strbuf_addf(&buf, "Range: bytes=%ld-", posn);
1018 headers = curl_slist_append(headers, buf.buf);
1019 strbuf_reset(&buf);
1020 }
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1021 } else
1022 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
1023 fwrite_buffer);
1024 }
1025
1026 strbuf_addstr(&buf, "Pragma:");
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1027 if (options && options->no_cache)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1028 strbuf_addstr(&buf, " no-cache");
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1029 if (options && options->keep_error)
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1030 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1031
1032 headers = curl_slist_append(headers, buf.buf);
1033
1034 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1035 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
Shawn O. Pearceaa90b962012-09-19 23:12:02[diff] [blame]1036 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1037
Jeff Kingbeed3362014-02-18 10:34:20[diff] [blame]1038 ret = run_one_slot(slot, &results);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1039
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]1040 if (options && options->content_type) {
1041 struct strbuf raw = STRBUF_INIT;
1042 curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw);
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]1043 extract_content_type(&raw, options->content_type,
1044 options->charset);
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]1045 strbuf_release(&raw);
1046 }
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1047
Jeff King78868962013-09-28 08:32:02[diff] [blame]1048 if (options && options->effective_url)
1049 curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL,
1050 options->effective_url);
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1051
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1052 curl_slist_free_all(headers);
1053 strbuf_release(&buf);
1054
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1055 return ret;
1056}
1057
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1058/*
1059 * Update the "base" url to a more appropriate value, as deduced by
1060 * redirects seen when requesting a URL starting with "url".
1061 *
1062 * The "asked" parameter is a URL that we asked curl to access, and must begin
1063 * with "base".
1064 *
1065 * The "got" parameter is the URL that curl reported to us as where we ended
1066 * up.
1067 *
1068 * Returns 1 if we updated the base url, 0 otherwise.
1069 *
1070 * Our basic strategy is to compare "base" and "asked" to find the bits
1071 * specific to our request. We then strip those bits off of "got" to yield the
1072 * new base. So for example, if our base is "http://example.com/foo.git",
1073 * and we ask for "http://example.com/foo.git/info/refs", we might end up
1074 * with "https://other.example.com/foo.git/info/refs". We would want the
1075 * new URL to become "https://other.example.com/foo.git".
1076 *
1077 * Note that this assumes a sane redirect scheme. It's entirely possible
1078 * in the example above to end up at a URL that does not even end in
1079 * "info/refs". In such a case we simply punt, as there is not much we can
1080 * do (and such a scheme is unlikely to represent a real git repository,
1081 * which means we are likely about to abort anyway).
1082 */
1083static int update_url_from_redirect(struct strbuf *base,
1084 const char *asked,
1085 const struct strbuf *got)
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1086{
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1087 const char *tail;
1088 size_t tail_len;
1089
1090 if (!strcmp(asked, got->buf))
1091 return 0;
1092
Jeff Kingde8118e2014-06-18 19:57:17[diff] [blame]1093 if (!skip_prefix(asked, base->buf, &tail))
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1094 die("BUG: update_url_from_redirect: %s is not a superset of %s",
1095 asked, base->buf);
1096
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1097 tail_len = strlen(tail);
1098
1099 if (got->len < tail_len ||
1100 strcmp(tail, got->buf + got->len - tail_len))
1101 return 0; /* insane redirect scheme */
1102
1103 strbuf_reset(base);
1104 strbuf_add(base, got->buf, got->len - tail_len);
1105 return 1;
1106}
1107
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1108static int http_request_reauth(const char *url,
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1109 void *result, int target,
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1110 struct http_get_options *options)
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1111{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1112 int ret = http_request(url, result, target, options);
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1113
1114 if (options && options->effective_url && options->base_url) {
1115 if (update_url_from_redirect(options->base_url,
1116 url, options->effective_url)) {
1117 credential_from_url(&http_auth, options->base_url->buf);
1118 url = options->effective_url->buf;
1119 }
1120 }
1121
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1122 if (ret != HTTP_REAUTH)
1123 return ret;
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1124
1125 /*
1126 * If we are using KEEP_ERROR, the previous request may have
1127 * put cruft into our output stream; we should clear it out before
1128 * making our next request. We only know how to do this for
1129 * the strbuf case, but that is enough to satisfy current callers.
1130 */
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1131 if (options && options->keep_error) {
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1132 switch (target) {
1133 case HTTP_REQUEST_STRBUF:
1134 strbuf_reset(result);
1135 break;
1136 default:
1137 die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
1138 }
1139 }
Jeff King2501aff2013-09-28 08:31:45[diff] [blame]1140
1141 credential_fill(&http_auth);
1142
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1143 return http_request(url, result, target, options);
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1144}
1145
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1146int http_get_strbuf(const char *url,
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1147 struct strbuf *result,
1148 struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1149{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1150 return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1151}
1152
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]1153/*
Jim Meyeringa7793a72012-03-28 08:41:54[diff] [blame]1154 * Downloads a URL and stores the result in the given file.
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]1155 *
1156 * If a previous interrupted download is detected (i.e. a previous temporary
1157 * file is still around) the download is resumed.
1158 */
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1159static int http_get_file(const char *url, const char *filename,
1160 struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1161{
1162 int ret;
1163 struct strbuf tmpfile = STRBUF_INIT;
1164 FILE *result;
1165
1166 strbuf_addf(&tmpfile, "%s.temp", filename);
1167 result = fopen(tmpfile.buf, "a");
Jeff King3d1fb762013-09-28 08:31:00[diff] [blame]1168 if (!result) {
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1169 error("Unable to open local file %s", tmpfile.buf);
1170 ret = HTTP_ERROR;
1171 goto cleanup;
1172 }
1173
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1174 ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1175 fclose(result);
1176
Jeff King3d1fb762013-09-28 08:31:00[diff] [blame]1177 if (ret == HTTP_OK && move_temp_to_file(tmpfile.buf, filename))
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1178 ret = HTTP_ERROR;
1179cleanup:
1180 strbuf_release(&tmpfile);
1181 return ret;
1182}
1183
Daniel Barkalowc13b2632008-04-26 19:53:09[diff] [blame]1184int http_fetch_ref(const char *base, struct ref *ref)
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1185{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1186 struct http_get_options options = {0};
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1187 char *url;
1188 struct strbuf buffer = STRBUF_INIT;
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1189 int ret = -1;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1190
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1191 options.no_cache = 1;
1192
Daniel Barkalowc13b2632008-04-26 19:53:09[diff] [blame]1193 url = quote_ref_url(base, ref->name);
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1194 if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) {
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1195 strbuf_rtrim(&buffer);
1196 if (buffer.len == 40)
1197 ret = get_sha1_hex(buffer.buf, ref->old_sha1);
Christian Couder59556542013-11-30 20:55:40[diff] [blame]1198 else if (starts_with(buffer.buf, "ref: ")) {
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1199 ref->symref = xstrdup(buffer.buf + 5);
1200 ret = 0;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1201 }
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1202 }
1203
1204 strbuf_release(&buffer);
1205 free(url);
1206 return ret;
1207}
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1208
1209/* Helpers for fetching packs */
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1210static char *fetch_pack_index(unsigned char *sha1, const char *base_url)
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1211{
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1212 char *url, *tmp;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1213 struct strbuf buf = STRBUF_INIT;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1214
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1215 if (http_is_verbose)
Shawn O. Pearce162eb5f2010-04-19 14:23:05[diff] [blame]1216 fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1));
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1217
1218 end_url_with_slash(&buf, base_url);
Shawn O. Pearce162eb5f2010-04-19 14:23:05[diff] [blame]1219 strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1));
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1220 url = strbuf_detach(&buf, NULL);
1221
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1222 strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1));
1223 tmp = strbuf_detach(&buf, NULL);
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1224
Ramsay Jones70900ed2013-10-24 20:17:19[diff] [blame]1225 if (http_get_file(url, tmp, NULL) != HTTP_OK) {
Pete Wyckoff82247e92012-04-30 00:28:45[diff] [blame]1226 error("Unable to get pack index %s", url);
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1227 free(tmp);
1228 tmp = NULL;
1229 }
1230
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1231 free(url);
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1232 return tmp;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1233}
1234
1235static int fetch_and_setup_pack_index(struct packed_git **packs_head,
1236 unsigned char *sha1, const char *base_url)
1237{
1238 struct packed_git *new_pack;
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1239 char *tmp_idx = NULL;
1240 int ret;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1241
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1242 if (has_pack_index(sha1)) {
1243 new_pack = parse_pack_index(sha1, NULL);
1244 if (!new_pack)
1245 return -1; /* parse_pack_index() already issued error message */
1246 goto add_pack;
1247 }
1248
1249 tmp_idx = fetch_pack_index(sha1, base_url);
1250 if (!tmp_idx)
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1251 return -1;
1252
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1253 new_pack = parse_pack_index(sha1, tmp_idx);
1254 if (!new_pack) {
1255 unlink(tmp_idx);
1256 free(tmp_idx);
1257
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1258 return -1; /* parse_pack_index() already issued error message */
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1259 }
1260
1261 ret = verify_pack_index(new_pack);
1262 if (!ret) {
1263 close_pack_index(new_pack);
1264 ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1));
1265 }
1266 free(tmp_idx);
1267 if (ret)
1268 return -1;
1269
1270add_pack:
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1271 new_pack->next = *packs_head;
1272 *packs_head = new_pack;
1273 return 0;
1274}
1275
1276int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
1277{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1278 struct http_get_options options = {0};
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1279 int ret = 0, i = 0;
1280 char *url, *data;
1281 struct strbuf buf = STRBUF_INIT;
1282 unsigned char sha1[20];
1283
1284 end_url_with_slash(&buf, base_url);
1285 strbuf_addstr(&buf, "objects/info/packs");
1286 url = strbuf_detach(&buf, NULL);
1287
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1288 options.no_cache = 1;
1289 ret = http_get_strbuf(url, &buf, &options);
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1290 if (ret != HTTP_OK)
1291 goto cleanup;
1292
1293 data = buf.buf;
1294 while (i < buf.len) {
1295 switch (data[i]) {
1296 case 'P':
1297 i++;
1298 if (i + 52 <= buf.len &&
Christian Couder59556542013-11-30 20:55:40[diff] [blame]1299 starts_with(data + i, " pack-") &&
1300 starts_with(data + i + 46, ".pack\n")) {
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1301 get_sha1_hex(data + i + 6, sha1);
1302 fetch_and_setup_pack_index(packs_head, sha1,
1303 base_url);
1304 i += 51;
1305 break;
1306 }
1307 default:
1308 while (i < buf.len && data[i] != '\n')
1309 i++;
1310 }
1311 i++;
1312 }
1313
1314cleanup:
1315 free(url);
1316 return ret;
1317}
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1318
1319void release_http_pack_request(struct http_pack_request *preq)
1320{
1321 if (preq->packfile != NULL) {
1322 fclose(preq->packfile);
1323 preq->packfile = NULL;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1324 }
1325 if (preq->range_header != NULL) {
1326 curl_slist_free_all(preq->range_header);
1327 preq->range_header = NULL;
1328 }
1329 preq->slot = NULL;
1330 free(preq->url);
1331}
1332
1333int finish_http_pack_request(struct http_pack_request *preq)
1334{
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1335 struct packed_git **lst;
Shawn O. Pearce021ab6f2010-04-17 20:07:36[diff] [blame]1336 struct packed_git *p = preq->target;
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1337 char *tmp_idx;
René Scharfed3180272014-08-19 19:09:35[diff] [blame]1338 struct child_process ip = CHILD_PROCESS_INIT;
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1339 const char *ip_argv[8];
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1340
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1341 close_pack_index(p);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1342
Shawn O. Pearce30652742010-04-17 20:07:37[diff] [blame]1343 fclose(preq->packfile);
1344 preq->packfile = NULL;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1345
1346 lst = preq->lst;
Shawn O. Pearce021ab6f2010-04-17 20:07:36[diff] [blame]1347 while (*lst != p)
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1348 lst = &((*lst)->next);
1349 *lst = (*lst)->next;
1350
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1351 tmp_idx = xstrdup(preq->tmpfile);
1352 strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"),
1353 ".idx.temp");
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1354
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1355 ip_argv[0] = "index-pack";
1356 ip_argv[1] = "-o";
1357 ip_argv[2] = tmp_idx;
1358 ip_argv[3] = preq->tmpfile;
1359 ip_argv[4] = NULL;
1360
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1361 ip.argv = ip_argv;
1362 ip.git_cmd = 1;
1363 ip.no_stdin = 1;
1364 ip.no_stdout = 1;
1365
1366 if (run_command(&ip)) {
1367 unlink(preq->tmpfile);
1368 unlink(tmp_idx);
1369 free(tmp_idx);
1370 return -1;
1371 }
1372
1373 unlink(sha1_pack_index_name(p->sha1));
1374
1375 if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1))
1376 || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) {
1377 free(tmp_idx);
1378 return -1;
1379 }
1380
1381 install_packed_git(p);
1382 free(tmp_idx);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1383 return 0;
1384}
1385
1386struct http_pack_request *new_http_pack_request(
1387 struct packed_git *target, const char *base_url)
1388{
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1389 long prev_posn = 0;
1390 char range[RANGE_HEADER_SIZE];
1391 struct strbuf buf = STRBUF_INIT;
1392 struct http_pack_request *preq;
1393
Tay Ray Chuanec99c9a2011-08-03 11:54:03[diff] [blame]1394 preq = xcalloc(1, sizeof(*preq));
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1395 preq->target = target;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1396
1397 end_url_with_slash(&buf, base_url);
1398 strbuf_addf(&buf, "objects/pack/pack-%s.pack",
1399 sha1_to_hex(target->sha1));
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1400 preq->url = strbuf_detach(&buf, NULL);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1401
Tay Ray Chuan90d05712010-04-19 14:46:43[diff] [blame]1402 snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp",
1403 sha1_pack_name(target->sha1));
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1404 preq->packfile = fopen(preq->tmpfile, "a");
1405 if (!preq->packfile) {
1406 error("Unable to open local file %s for pack",
1407 preq->tmpfile);
1408 goto abort;
1409 }
1410
1411 preq->slot = get_active_slot();
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1412 curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile);
1413 curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1414 curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1415 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1416 no_pragma_header);
1417
1418 /*
1419 * If there is data present from a previous transfer attempt,
1420 * resume where it left off
1421 */
1422 prev_posn = ftell(preq->packfile);
1423 if (prev_posn>0) {
1424 if (http_is_verbose)
1425 fprintf(stderr,
1426 "Resuming fetch of pack %s at byte %ld\n",
1427 sha1_to_hex(target->sha1), prev_posn);
1428 sprintf(range, "Range: bytes=%ld-", prev_posn);
1429 preq->range_header = curl_slist_append(NULL, range);
1430 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1431 preq->range_header);
1432 }
1433
1434 return preq;
1435
1436abort:
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1437 free(preq->url);
Tay Ray Chuan5ae9ebf2009-08-10 15:55:48[diff] [blame]1438 free(preq);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1439 return NULL;
1440}
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1441
1442/* Helpers for fetching objects (loose) */
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1443static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb,
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1444 void *data)
1445{
1446 unsigned char expn[4096];
1447 size_t size = eltsize * nmemb;
1448 int posn = 0;
1449 struct http_object_request *freq =
1450 (struct http_object_request *)data;
1451 do {
1452 ssize_t retval = xwrite(freq->localfile,
1453 (char *) ptr + posn, size - posn);
1454 if (retval < 0)
1455 return posn;
1456 posn += retval;
1457 } while (posn < size);
1458
1459 freq->stream.avail_in = size;
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1460 freq->stream.next_in = (void *)ptr;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1461 do {
1462 freq->stream.next_out = expn;
1463 freq->stream.avail_out = sizeof(expn);
1464 freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH);
1465 git_SHA1_Update(&freq->c, expn,
1466 sizeof(expn) - freq->stream.avail_out);
1467 } while (freq->stream.avail_in && freq->zret == Z_OK);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1468 return size;
1469}
1470
1471struct http_object_request *new_http_object_request(const char *base_url,
1472 unsigned char *sha1)
1473{
1474 char *hex = sha1_to_hex(sha1);
Michael Haggerty30d6c6e2014-02-21 16:32:05[diff] [blame]1475 const char *filename;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1476 char prevfile[PATH_MAX];
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1477 int prevlocal;
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1478 char prev_buf[PREV_BUF_SIZE];
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1479 ssize_t prev_read = 0;
1480 long prev_posn = 0;
1481 char range[RANGE_HEADER_SIZE];
1482 struct curl_slist *range_header = NULL;
1483 struct http_object_request *freq;
1484
Tay Ray Chuanec99c9a2011-08-03 11:54:03[diff] [blame]1485 freq = xcalloc(1, sizeof(*freq));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1486 hashcpy(freq->sha1, sha1);
1487 freq->localfile = -1;
1488
1489 filename = sha1_file_name(sha1);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1490 snprintf(freq->tmpfile, sizeof(freq->tmpfile),
1491 "%s.temp", filename);
1492
1493 snprintf(prevfile, sizeof(prevfile), "%s.prev", filename);
1494 unlink_or_warn(prevfile);
1495 rename(freq->tmpfile, prevfile);
1496 unlink_or_warn(freq->tmpfile);
1497
1498 if (freq->localfile != -1)
1499 error("fd leakage in start: %d", freq->localfile);
1500 freq->localfile = open(freq->tmpfile,
1501 O_WRONLY | O_CREAT | O_EXCL, 0666);
1502 /*
1503 * This could have failed due to the "lazy directory creation";
1504 * try to mkdir the last path component.
1505 */
1506 if (freq->localfile < 0 && errno == ENOENT) {
1507 char *dir = strrchr(freq->tmpfile, '/');
1508 if (dir) {
1509 *dir = 0;
1510 mkdir(freq->tmpfile, 0777);
1511 *dir = '/';
1512 }
1513 freq->localfile = open(freq->tmpfile,
1514 O_WRONLY | O_CREAT | O_EXCL, 0666);
1515 }
1516
1517 if (freq->localfile < 0) {
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1518 error("Couldn't create temporary file %s: %s",
1519 freq->tmpfile, strerror(errno));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1520 goto abort;
1521 }
1522
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1523 git_inflate_init(&freq->stream);
1524
1525 git_SHA1_Init(&freq->c);
1526
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1527 freq->url = get_remote_object_url(base_url, hex, 0);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1528
1529 /*
1530 * If a previous temp file is present, process what was already
1531 * fetched.
1532 */
1533 prevlocal = open(prevfile, O_RDONLY);
1534 if (prevlocal != -1) {
1535 do {
1536 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
1537 if (prev_read>0) {
1538 if (fwrite_sha1_file(prev_buf,
1539 1,
1540 prev_read,
1541 freq) == prev_read) {
1542 prev_posn += prev_read;
1543 } else {
1544 prev_read = -1;
1545 }
1546 }
1547 } while (prev_read > 0);
1548 close(prevlocal);
1549 }
1550 unlink_or_warn(prevfile);
1551
1552 /*
1553 * Reset inflate/SHA1 if there was an error reading the previous temp
1554 * file; also rewind to the beginning of the local file.
1555 */
1556 if (prev_read == -1) {
1557 memset(&freq->stream, 0, sizeof(freq->stream));
1558 git_inflate_init(&freq->stream);
1559 git_SHA1_Init(&freq->c);
1560 if (prev_posn>0) {
1561 prev_posn = 0;
1562 lseek(freq->localfile, 0, SEEK_SET);
Jeff Lasslett0c4f21e2009-08-10 16:05:06[diff] [blame]1563 if (ftruncate(freq->localfile, 0) < 0) {
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1564 error("Couldn't truncate temporary file %s: %s",
1565 freq->tmpfile, strerror(errno));
Jeff Lasslett0c4f21e2009-08-10 16:05:06[diff] [blame]1566 goto abort;
1567 }
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1568 }
1569 }
1570
1571 freq->slot = get_active_slot();
1572
1573 curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
1574 curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
1575 curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1576 curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1577 curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
1578
1579 /*
1580 * If we have successfully processed data from a previous fetch
1581 * attempt, only fetch the data we don't already have.
1582 */
1583 if (prev_posn>0) {
1584 if (http_is_verbose)
1585 fprintf(stderr,
1586 "Resuming fetch of object %s at byte %ld\n",
1587 hex, prev_posn);
1588 sprintf(range, "Range: bytes=%ld-", prev_posn);
1589 range_header = curl_slist_append(range_header, range);
1590 curl_easy_setopt(freq->slot->curl,
1591 CURLOPT_HTTPHEADER, range_header);
1592 }
1593
1594 return freq;
1595
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1596abort:
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1597 free(freq->url);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1598 free(freq);
1599 return NULL;
1600}
1601
1602void process_http_object_request(struct http_object_request *freq)
1603{
1604 if (freq->slot == NULL)
1605 return;
1606 freq->curl_result = freq->slot->curl_result;
1607 freq->http_code = freq->slot->http_code;
1608 freq->slot = NULL;
1609}
1610
1611int finish_http_object_request(struct http_object_request *freq)
1612{
1613 struct stat st;
1614
1615 close(freq->localfile);
1616 freq->localfile = -1;
1617
1618 process_http_object_request(freq);
1619
1620 if (freq->http_code == 416) {
Thiago Farinabd757c12010-01-03 16:20:30[diff] [blame]1621 warning("requested range invalid; we may already have all the data.");
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1622 } else if (freq->curl_result != CURLE_OK) {
1623 if (stat(freq->tmpfile, &st) == 0)
1624 if (st.st_size == 0)
1625 unlink_or_warn(freq->tmpfile);
1626 return -1;
1627 }
1628
1629 git_inflate_end(&freq->stream);
1630 git_SHA1_Final(freq->real_sha1, &freq->c);
1631 if (freq->zret != Z_STREAM_END) {
1632 unlink_or_warn(freq->tmpfile);
1633 return -1;
1634 }
1635 if (hashcmp(freq->sha1, freq->real_sha1)) {
1636 unlink_or_warn(freq->tmpfile);
1637 return -1;
1638 }
1639 freq->rename =
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1640 move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1641
1642 return freq->rename;
1643}
1644
1645void abort_http_object_request(struct http_object_request *freq)
1646{
1647 unlink_or_warn(freq->tmpfile);
1648
1649 release_http_object_request(freq);
1650}
1651
1652void release_http_object_request(struct http_object_request *freq)
1653{
1654 if (freq->localfile != -1) {
1655 close(freq->localfile);
1656 freq->localfile = -1;
1657 }
1658 if (freq->url != NULL) {
1659 free(freq->url);
1660 freq->url = NULL;
1661 }
Tay Ray Chuan4b9fa0e2009-08-26 12:20:53[diff] [blame]1662 if (freq->slot != NULL) {
1663 freq->slot->callback_func = NULL;
1664 freq->slot->callback_data = NULL;
1665 release_active_slot(freq->slot);
1666 freq->slot = NULL;
1667 }
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1668}