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chromium / external / github.com / git / git / refs/tags/v2.4.2 / . / http.c
blob: 4b179f6fc8f29c1683b187393203d20f95d29157 [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"
Jeff King93f7d912015-02-26 03:04:16[diff] [blame]11#include "gettext.h"
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]12
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]13int active_requests;
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]14int http_is_verbose;
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]15size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]16
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]17#if LIBCURL_VERSION_NUM >= 0x070a06
18#define LIBCURL_CAN_HANDLE_AUTH_ANY
19#endif
20
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]21static int min_curl_sessions = 1;
22static int curl_session_count;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]23#ifdef USE_CURL_MULTI
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]24static int max_requests = -1;
25static CURLM *curlm;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]26#endif
27#ifndef NO_CURL_EASY_DUPHANDLE
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]28static CURL *curl_default;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]29#endif
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]30
31#define PREV_BUF_SIZE 4096
32#define RANGE_HEADER_SIZE 30
33
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]34char curl_errorstr[CURL_ERROR_SIZE];
35
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]36static int curl_ssl_verify = -1;
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]37static int curl_ssl_try;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]38static const char *ssl_cert;
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]39#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]40static const char *ssl_key;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]41#endif
42#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]43static const char *ssl_capath;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]44#endif
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]45static const char *ssl_cainfo;
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]46static long curl_low_speed_limit = -1;
47static long curl_low_speed_time = -1;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]48static int curl_ftp_no_epsv;
49static const char *curl_http_proxy;
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]50static const char *curl_cookie_file;
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]51static int curl_save_cookies;
Jeff King2501aff2013-09-28 08:31:45[diff] [blame]52struct credential http_auth = CREDENTIAL_INIT;
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]53static int http_proactive_auth;
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]54static const char *user_agent;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]55
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]56#if LIBCURL_VERSION_NUM >= 0x071700
57/* Use CURLOPT_KEYPASSWD as is */
58#elif LIBCURL_VERSION_NUM >= 0x070903
59#define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
60#else
61#define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
62#endif
63
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]64static struct credential cert_auth = CREDENTIAL_INIT;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]65static int ssl_cert_password_required;
brian m. carlson4dbe6642015-01-08 00:29:20[diff] [blame]66#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
67static unsigned long http_auth_methods = CURLAUTH_ANY;
68#endif
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]69
Mike Hommeycc3530e2007-12-09 17:04:57[diff] [blame]70static struct curl_slist *pragma_header;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]71static struct curl_slist *no_pragma_header;
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]72
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]73static struct active_request_slot *active_queue_head;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]74
Yi EungJunf18604b2015-01-28 12:04:37[diff] [blame]75static char *cached_accept_language;
76
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]77size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]78{
79 size_t size = eltsize * nmemb;
Junio C Hamanof444e522008-07-04 07:37:40[diff] [blame]80 struct buffer *buffer = buffer_;
81
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]82 if (size > buffer->buf.len - buffer->posn)
83 size = buffer->buf.len - buffer->posn;
84 memcpy(ptr, buffer->buf.buf + buffer->posn, size);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]85 buffer->posn += size;
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]86
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]87 return size;
88}
89
Martin Storsjö3944ba02009-04-01 16:48:24[diff] [blame]90#ifndef NO_CURL_IOCTL
91curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp)
92{
93 struct buffer *buffer = clientp;
94
95 switch (cmd) {
96 case CURLIOCMD_NOP:
97 return CURLIOE_OK;
98
99 case CURLIOCMD_RESTARTREAD:
100 buffer->posn = 0;
101 return CURLIOE_OK;
102
103 default:
104 return CURLIOE_UNKNOWNCMD;
105 }
106}
107#endif
108
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]109size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]110{
111 size_t size = eltsize * nmemb;
Junio C Hamanof444e522008-07-04 07:37:40[diff] [blame]112 struct strbuf *buffer = buffer_;
113
Mike Hommey028c2972007-12-09 19:30:59[diff] [blame]114 strbuf_add(buffer, ptr, size);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]115 return size;
116}
117
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]118size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]119{
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]120 return eltsize * nmemb;
121}
122
Junio C Hamanob90a3d72015-01-14 23:40:46[diff] [blame]123static void closedown_active_slot(struct active_request_slot *slot)
124{
125 active_requests--;
126 slot->in_use = 0;
127}
128
129static void finish_active_slot(struct active_request_slot *slot)
130{
131 closedown_active_slot(slot);
132 curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
133
134 if (slot->finished != NULL)
135 (*slot->finished) = 1;
136
137 /* Store slot results so they can be read after the slot is reused */
138 if (slot->results != NULL) {
139 slot->results->curl_result = slot->curl_result;
140 slot->results->http_code = slot->http_code;
141#if LIBCURL_VERSION_NUM >= 0x070a08
142 curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
143 &slot->results->auth_avail);
144#else
145 slot->results->auth_avail = 0;
146#endif
147 }
148
149 /* Run callback if appropriate */
150 if (slot->callback_func != NULL)
151 slot->callback_func(slot->callback_data);
152}
153
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]154#ifdef USE_CURL_MULTI
155static void process_curl_messages(void)
156{
157 int num_messages;
158 struct active_request_slot *slot;
159 CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages);
160
161 while (curl_message != NULL) {
162 if (curl_message->msg == CURLMSG_DONE) {
163 int curl_result = curl_message->data.result;
164 slot = active_queue_head;
165 while (slot != NULL &&
166 slot->curl != curl_message->easy_handle)
167 slot = slot->next;
168 if (slot != NULL) {
169 curl_multi_remove_handle(curlm, slot->curl);
170 slot->curl_result = curl_result;
171 finish_active_slot(slot);
172 } else {
173 fprintf(stderr, "Received DONE message for unknown request!\n");
174 }
175 } else {
176 fprintf(stderr, "Unknown CURL message received: %d\n",
177 (int)curl_message->msg);
178 }
179 curl_message = curl_multi_info_read(curlm, &num_messages);
180 }
181}
182#endif
183
Johannes Schindelinef90d6d2008-05-14 17:46:53[diff] [blame]184static int http_options(const char *var, const char *value, void *cb)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]185{
186 if (!strcmp("http.sslverify", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]187 curl_ssl_verify = git_config_bool(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]188 return 0;
189 }
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]190 if (!strcmp("http.sslcert", var))
191 return git_config_string(&ssl_cert, var, value);
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]192#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]193 if (!strcmp("http.sslkey", var))
194 return git_config_string(&ssl_key, var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]195#endif
196#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]197 if (!strcmp("http.sslcapath", var))
198 return git_config_string(&ssl_capath, var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]199#endif
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]200 if (!strcmp("http.sslcainfo", var))
201 return git_config_string(&ssl_cainfo, var, value);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]202 if (!strcmp("http.sslcertpasswordprotected", var)) {
Junio C Hamano3f4ccd22013-07-12 18:52:47[diff] [blame]203 ssl_cert_password_required = git_config_bool(var, value);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]204 return 0;
205 }
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]206 if (!strcmp("http.ssltry", var)) {
207 curl_ssl_try = git_config_bool(var, value);
208 return 0;
209 }
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]210 if (!strcmp("http.minsessions", var)) {
211 min_curl_sessions = git_config_int(var, value);
212#ifndef USE_CURL_MULTI
213 if (min_curl_sessions > 1)
214 min_curl_sessions = 1;
215#endif
216 return 0;
217 }
Junio C Hamanoa6080a02007-06-07 07:04:01[diff] [blame]218#ifdef USE_CURL_MULTI
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]219 if (!strcmp("http.maxrequests", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]220 max_requests = git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]221 return 0;
222 }
223#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]224 if (!strcmp("http.lowspeedlimit", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]225 curl_low_speed_limit = (long)git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]226 return 0;
227 }
228 if (!strcmp("http.lowspeedtime", var)) {
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]229 curl_low_speed_time = (long)git_config_int(var, value);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]230 return 0;
231 }
232
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]233 if (!strcmp("http.noepsv", var)) {
234 curl_ftp_no_epsv = git_config_bool(var, value);
235 return 0;
236 }
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]237 if (!strcmp("http.proxy", var))
238 return git_config_string(&curl_http_proxy, var, value);
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]239
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]240 if (!strcmp("http.cookiefile", var))
241 return git_config_string(&curl_cookie_file, var, value);
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]242 if (!strcmp("http.savecookies", var)) {
243 curl_save_cookies = git_config_bool(var, value);
244 return 0;
245 }
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]246
Shawn O. Pearcede1a2fd2009-10-31 00:47:41[diff] [blame]247 if (!strcmp("http.postbuffer", var)) {
248 http_post_buffer = git_config_int(var, value);
249 if (http_post_buffer < LARGE_PACKET_MAX)
250 http_post_buffer = LARGE_PACKET_MAX;
251 return 0;
252 }
253
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]254 if (!strcmp("http.useragent", var))
255 return git_config_string(&user_agent, var, value);
256
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]257 /* Fall back on the default ones */
Johannes Schindelinef90d6d2008-05-14 17:46:53[diff] [blame]258 return git_default_config(var, value, cb);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]259}
260
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]261static void init_curl_http_auth(CURL *result)
262{
Jeff King6f4c3472012-04-13 06:19:25[diff] [blame]263 if (!http_auth.username)
264 return;
265
266 credential_fill(&http_auth);
267
268#if LIBCURL_VERSION_NUM >= 0x071301
269 curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username);
270 curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password);
271#else
272 {
Jeff Kingaa0834a2012-04-13 06:18:35[diff] [blame]273 static struct strbuf up = STRBUF_INIT;
Brandon Caseya94cf2c2013-06-19 02:43:49[diff] [blame]274 /*
275 * Note that we assume we only ever have a single set of
276 * credentials in a given program run, so we do not have
277 * to worry about updating this buffer, only setting its
278 * initial value.
279 */
280 if (!up.len)
281 strbuf_addf(&up, "%s:%s",
282 http_auth.username, http_auth.password);
Jeff Kingaa0834a2012-04-13 06:18:35[diff] [blame]283 curl_easy_setopt(result, CURLOPT_USERPWD, up.buf);
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]284 }
Jeff King6f4c3472012-04-13 06:19:25[diff] [blame]285#endif
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]286}
287
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]288static int has_cert_password(void)
289{
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]290 if (ssl_cert == NULL || ssl_cert_password_required != 1)
291 return 0;
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]292 if (!cert_auth.password) {
293 cert_auth.protocol = xstrdup("cert");
Rene Bredlau75e9a402012-12-21 16:31:19[diff] [blame]294 cert_auth.username = xstrdup("");
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]295 cert_auth.path = xstrdup(ssl_cert);
296 credential_fill(&cert_auth);
297 }
298 return 1;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]299}
300
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]301#if LIBCURL_VERSION_NUM >= 0x071900
302static void set_curl_keepalive(CURL *c)
303{
304 curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1);
305}
306
307#elif LIBCURL_VERSION_NUM >= 0x071000
Eric Wonga15d0692013-10-12 22:29:40[diff] [blame]308static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type)
309{
310 int ka = 1;
311 int rc;
312 socklen_t len = (socklen_t)sizeof(ka);
313
314 if (type != CURLSOCKTYPE_IPCXN)
315 return 0;
316
317 rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len);
318 if (rc < 0)
319 warning("unable to set SO_KEEPALIVE on socket %s",
320 strerror(errno));
321
322 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
323}
324
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]325static void set_curl_keepalive(CURL *c)
326{
327 curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
328}
329
330#else
331static void set_curl_keepalive(CURL *c)
332{
333 /* not supported on older curl versions */
334}
335#endif
336
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]337static CURL *get_curl_handle(void)
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]338{
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]339 CURL *result = curl_easy_init();
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]340
Bernhard Reiterfaa38072014-08-13 17:31:24[diff] [blame]341 if (!result)
342 die("curl_easy_init failed");
343
Junio C Hamanoa5ccc592008-02-21 23:10:37[diff] [blame]344 if (!curl_ssl_verify) {
345 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0);
346 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0);
347 } else {
348 /* Verify authenticity of the peer's certificate */
349 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1);
350 /* The name in the cert must match whom we tried to connect */
351 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
352 }
353
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]354#if LIBCURL_VERSION_NUM >= 0x070907
355 curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
356#endif
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]357#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
Junio C Hamano525ecd22009-12-28 18:04:24[diff] [blame]358 curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
Martin Storsjöb8ac9232009-11-27 15:43:08[diff] [blame]359#endif
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]360
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]361 if (http_proactive_auth)
362 init_curl_http_auth(result);
363
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]364 if (ssl_cert != NULL)
365 curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]366 if (has_cert_password())
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]367 curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password);
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]368#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]369 if (ssl_key != NULL)
370 curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
371#endif
372#if LIBCURL_VERSION_NUM >= 0x070908
373 if (ssl_capath != NULL)
374 curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
375#endif
376 if (ssl_cainfo != NULL)
377 curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]378
379 if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
380 curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
381 curl_low_speed_limit);
382 curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME,
383 curl_low_speed_time);
384 }
385
386 curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1);
Tay Ray Chuan311e2ea2010-09-25 04:20:35[diff] [blame]387#if LIBCURL_VERSION_NUM >= 0x071301
388 curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
389#elif LIBCURL_VERSION_NUM >= 0x071101
390 curl_easy_setopt(result, CURLOPT_POST301, 1);
391#endif
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]392
Mark Wooding7982d742006-02-01 11:44:37[diff] [blame]393 if (getenv("GIT_CURL_VERBOSE"))
394 curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
395
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]396 curl_easy_setopt(result, CURLOPT_USERAGENT,
Jeff King745c7c82012-06-02 19:03:08[diff] [blame]397 user_agent ? user_agent : git_user_agent());
Nick Hengeveld20fc9bc2006-04-04 17:11:29[diff] [blame]398
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]399 if (curl_ftp_no_epsv)
400 curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
401
Modestas Vainius4bc444e2013-04-07 19:10:39[diff] [blame]402#ifdef CURLOPT_USE_SSL
403 if (curl_ssl_try)
404 curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
405#endif
406
Nelson Benitez Leondd613992012-03-02 13:55:57[diff] [blame]407 if (curl_http_proxy) {
Sam Vilain9c5665a2007-11-23 00:07:00[diff] [blame]408 curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
Tom G. Christensen1c2dbf22015-02-03 17:30:08[diff] [blame]409#if LIBCURL_VERSION_NUM >= 0x070a07
Nelson Benitez Leondd613992012-03-02 13:55:57[diff] [blame]410 curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
Tom G. Christensen1c2dbf22015-02-03 17:30:08[diff] [blame]411#endif
Nelson Benitez Leondd613992012-03-02 13:55:57[diff] [blame]412 }
Sam Vilain9c5665a2007-11-23 00:07:00[diff] [blame]413
Jeff King47ce1152013-10-15 00:06:14[diff] [blame]414 set_curl_keepalive(result);
Eric Wonga15d0692013-10-12 22:29:40[diff] [blame]415
Junio C Hamano11979b92005-11-19 01:06:46[diff] [blame]416 return result;
417}
418
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]419static void set_from_env(const char **var, const char *envname)
420{
421 const char *val = getenv(envname);
422 if (val)
423 *var = val;
424}
425
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]426void http_init(struct remote *remote, const char *url, int proactive_auth)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]427{
428 char *low_speed_limit;
429 char *low_speed_time;
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]430 char *normalized_url;
431 struct urlmatch_config config = { STRING_LIST_INIT_DUP };
432
433 config.section = "http";
434 config.key = NULL;
435 config.collect_fn = http_options;
436 config.cascade_fn = git_default_config;
437 config.cb = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]438
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]439 http_is_verbose = 0;
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]440 normalized_url = url_normalize(url, &config.url);
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]441
Kyle J. McKay6a569932013-08-05 20:20:36[diff] [blame]442 git_config(urlmatch_config_entry, &config);
443 free(normalized_url);
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]444
Bernhard Reiterfaa38072014-08-13 17:31:24[diff] [blame]445 if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK)
446 die("curl_global_init failed");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]447
Jeff Kinga4ddbc32011-12-14 00:11:56[diff] [blame]448 http_proactive_auth = proactive_auth;
449
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]450 if (remote && remote->http_proxy)
451 curl_http_proxy = xstrdup(remote->http_proxy);
452
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]453 pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache");
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]454 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]455
456#ifdef USE_CURL_MULTI
457 {
458 char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
459 if (http_max_requests != NULL)
460 max_requests = atoi(http_max_requests);
461 }
462
463 curlm = curl_multi_init();
Jeff King8837eb42014-08-17 07:35:53[diff] [blame]464 if (!curlm)
465 die("curl_multi_init failed");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]466#endif
467
468 if (getenv("GIT_SSL_NO_VERIFY"))
469 curl_ssl_verify = 0;
470
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]471 set_from_env(&ssl_cert, "GIT_SSL_CERT");
Mark Lodatoef52aaf2009-06-15 02:39:00[diff] [blame]472#if LIBCURL_VERSION_NUM >= 0x070903
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]473 set_from_env(&ssl_key, "GIT_SSL_KEY");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]474#endif
475#if LIBCURL_VERSION_NUM >= 0x070908
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]476 set_from_env(&ssl_capath, "GIT_SSL_CAPATH");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]477#endif
Junio C Hamano7059cd92009-03-10 02:00:30[diff] [blame]478 set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO");
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]479
Spencer E. Olsonb1d10582010-08-11 20:40:38[diff] [blame]480 set_from_env(&user_agent, "GIT_HTTP_USER_AGENT");
481
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]482 low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
483 if (low_speed_limit != NULL)
484 curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
485 low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME");
486 if (low_speed_time != NULL)
487 curl_low_speed_time = strtol(low_speed_time, NULL, 10);
488
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]489 if (curl_ssl_verify == -1)
490 curl_ssl_verify = 1;
491
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]492 curl_session_count = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]493#ifdef USE_CURL_MULTI
494 if (max_requests < 1)
495 max_requests = DEFAULT_MAX_REQUESTS;
496#endif
497
Sasha Khapyorsky3ea099d2006-09-29 00:10:44[diff] [blame]498 if (getenv("GIT_CURL_FTP_NO_EPSV"))
499 curl_ftp_no_epsv = 1;
500
Jeff Kingdeba4932011-10-14 07:40:40[diff] [blame]501 if (url) {
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]502 credential_from_url(&http_auth, url);
Mark Lodato754ae192009-05-28 03:16:03[diff] [blame]503 if (!ssl_cert_password_required &&
504 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
Christian Couder59556542013-11-30 20:55:40[diff] [blame]505 starts_with(url, "https://"))
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]506 ssl_cert_password_required = 1;
507 }
Junio C Hamanoc33976c2009-03-10 06:34:25[diff] [blame]508
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]509#ifndef NO_CURL_EASY_DUPHANDLE
510 curl_default = get_curl_handle();
511#endif
512}
513
514void http_cleanup(void)
515{
516 struct active_request_slot *slot = active_queue_head;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]517
518 while (slot != NULL) {
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]519 struct active_request_slot *next = slot->next;
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]520 if (slot->curl != NULL) {
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]521#ifdef USE_CURL_MULTI
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]522 curl_multi_remove_handle(curlm, slot->curl);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]523#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]524 curl_easy_cleanup(slot->curl);
Mike Hommeyf23d1f72008-03-03 19:30:16[diff] [blame]525 }
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]526 free(slot);
527 slot = next;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]528 }
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]529 active_queue_head = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]530
531#ifndef NO_CURL_EASY_DUPHANDLE
532 curl_easy_cleanup(curl_default);
533#endif
534
535#ifdef USE_CURL_MULTI
536 curl_multi_cleanup(curlm);
537#endif
538 curl_global_cleanup();
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]539
540 curl_slist_free_all(pragma_header);
Shawn O. Pearce3278cd02007-09-15 07:23:00[diff] [blame]541 pragma_header = NULL;
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]542
Tay Ray Chuane9176742009-06-06 08:43:41[diff] [blame]543 curl_slist_free_all(no_pragma_header);
544 no_pragma_header = NULL;
545
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]546 if (curl_http_proxy) {
Miklos Vajnae4a80ec2008-12-07 00:45:37[diff] [blame]547 free((void *)curl_http_proxy);
Mike Hommey9fc64402008-02-27 20:35:50[diff] [blame]548 curl_http_proxy = NULL;
549 }
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]550
Jeff King148bb6a2011-12-10 10:31:21[diff] [blame]551 if (cert_auth.password != NULL) {
552 memset(cert_auth.password, 0, strlen(cert_auth.password));
553 free(cert_auth.password);
554 cert_auth.password = NULL;
Mark Lodato30dd9162009-05-28 03:16:02[diff] [blame]555 }
556 ssl_cert_password_required = 0;
Yi EungJunf18604b2015-01-28 12:04:37[diff] [blame]557
558 free(cached_accept_language);
559 cached_accept_language = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]560}
561
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]562struct active_request_slot *get_active_slot(void)
563{
564 struct active_request_slot *slot = active_queue_head;
565 struct active_request_slot *newslot;
566
567#ifdef USE_CURL_MULTI
568 int num_transfers;
569
570 /* Wait for a slot to open up if the queue is full */
571 while (active_requests >= max_requests) {
572 curl_multi_perform(curlm, &num_transfers);
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]573 if (num_transfers < active_requests)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]574 process_curl_messages();
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]575 }
576#endif
577
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]578 while (slot != NULL && slot->in_use)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]579 slot = slot->next;
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]580
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]581 if (slot == NULL) {
582 newslot = xmalloc(sizeof(*newslot));
583 newslot->curl = NULL;
584 newslot->in_use = 0;
585 newslot->next = NULL;
586
587 slot = active_queue_head;
588 if (slot == NULL) {
589 active_queue_head = newslot;
590 } else {
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]591 while (slot->next != NULL)
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]592 slot = slot->next;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]593 slot->next = newslot;
594 }
595 slot = newslot;
596 }
597
598 if (slot->curl == NULL) {
599#ifdef NO_CURL_EASY_DUPHANDLE
600 slot->curl = get_curl_handle();
601#else
602 slot->curl = curl_easy_duphandle(curl_default);
603#endif
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]604 curl_session_count++;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]605 }
606
607 active_requests++;
608 slot->in_use = 1;
Nick Hengeveldc8568e12006-01-31 19:06:55[diff] [blame]609 slot->results = NULL;
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]610 slot->finished = NULL;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]611 slot->callback_data = NULL;
612 slot->callback_func = NULL;
Duncan Brownbcfb95d2011-06-02 20:31:25[diff] [blame]613 curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file);
Dave Borowitz912b2ac2013-07-23 22:40:17[diff] [blame]614 if (curl_save_cookies)
615 curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]616 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]617 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
Nick Hengeveld90949502006-05-31 23:25:03[diff] [blame]618 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
619 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL);
620 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL);
Junio C Hamano1e418272011-04-26 15:04:49[diff] [blame]621 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL);
Nick Hengeveld90949502006-05-31 23:25:03[diff] [blame]622 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0);
623 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
Jeff Kingb793acf2013-04-16 00:30:38[diff] [blame]624 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
brian m. carlson4dbe6642015-01-08 00:29:20[diff] [blame]625#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
626 curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods);
627#endif
Jeff Kingdfa17252012-04-10 09:53:40[diff] [blame]628 if (http_auth.password)
629 init_curl_http_auth(slot->curl);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]630
631 return slot;
632}
633
634int start_active_slot(struct active_request_slot *slot)
635{
636#ifdef USE_CURL_MULTI
637 CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]638 int num_transfers;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]639
640 if (curlm_result != CURLM_OK &&
641 curlm_result != CURLM_CALL_MULTI_PERFORM) {
642 active_requests--;
643 slot->in_use = 0;
644 return 0;
645 }
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]646
647 /*
648 * We know there must be something to do, since we just added
649 * something.
650 */
651 curl_multi_perform(curlm, &num_transfers);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]652#endif
653 return 1;
654}
655
656#ifdef USE_CURL_MULTI
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]657struct fill_chain {
658 void *data;
659 int (*fill)(void *);
660 struct fill_chain *next;
661};
662
Junio C Hamano4251ccb2009-03-10 01:47:29[diff] [blame]663static struct fill_chain *fill_cfg;
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]664
665void add_fill_function(void *data, int (*fill)(void *))
666{
Dotan Barake8eec712008-09-09 18:57:10[diff] [blame]667 struct fill_chain *new = xmalloc(sizeof(*new));
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]668 struct fill_chain **linkp = &fill_cfg;
669 new->data = data;
670 new->fill = fill;
671 new->next = NULL;
672 while (*linkp)
673 linkp = &(*linkp)->next;
674 *linkp = new;
675}
676
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]677void fill_active_slots(void)
678{
679 struct active_request_slot *slot = active_queue_head;
680
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]681 while (active_requests < max_requests) {
682 struct fill_chain *fill;
683 for (fill = fill_cfg; fill; fill = fill->next)
684 if (fill->fill(fill->data))
685 break;
686
687 if (!fill)
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]688 break;
Daniel Barkalowfc57b6a2007-09-11 03:02:34[diff] [blame]689 }
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]690
691 while (slot != NULL) {
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]692 if (!slot->in_use && slot->curl != NULL
693 && curl_session_count > min_curl_sessions) {
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]694 curl_easy_cleanup(slot->curl);
695 slot->curl = NULL;
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]696 curl_session_count--;
Daniel Barkalow45c17412007-09-11 03:02:28[diff] [blame]697 }
698 slot = slot->next;
699 }
700}
701
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]702void step_active_slots(void)
703{
704 int num_transfers;
705 CURLMcode curlm_result;
706
707 do {
708 curlm_result = curl_multi_perform(curlm, &num_transfers);
709 } while (curlm_result == CURLM_CALL_MULTI_PERFORM);
710 if (num_transfers < active_requests) {
711 process_curl_messages();
712 fill_active_slots();
713 }
714}
715#endif
716
717void run_active_slot(struct active_request_slot *slot)
718{
719#ifdef USE_CURL_MULTI
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]720 fd_set readfds;
721 fd_set writefds;
722 fd_set excfds;
723 int max_fd;
724 struct timeval select_timeout;
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]725 int finished = 0;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]726
Nick Hengeveldbaa7b672006-03-11 04:18:01[diff] [blame]727 slot->finished = &finished;
728 while (!finished) {
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]729 step_active_slots();
730
Mika Fischerdf26c472011-11-04 14:19:27[diff] [blame]731 if (slot->in_use) {
Mika Fischereb56c822011-11-04 14:19:26[diff] [blame]732#if LIBCURL_VERSION_NUM >= 0x070f04
733 long curl_timeout;
734 curl_multi_timeout(curlm, &curl_timeout);
735 if (curl_timeout == 0) {
736 continue;
737 } else if (curl_timeout == -1) {
738 select_timeout.tv_sec = 0;
739 select_timeout.tv_usec = 50000;
740 } else {
741 select_timeout.tv_sec = curl_timeout / 1000;
742 select_timeout.tv_usec = (curl_timeout % 1000) * 1000;
743 }
744#else
745 select_timeout.tv_sec = 0;
746 select_timeout.tv_usec = 50000;
747#endif
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]748
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]749 max_fd = -1;
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]750 FD_ZERO(&readfds);
751 FD_ZERO(&writefds);
752 FD_ZERO(&excfds);
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]753 curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd);
Mika Fischereb56c822011-11-04 14:19:26[diff] [blame]754
Stefan Zager7202b812012-10-19 21:04:20[diff] [blame]755 /*
756 * It can happen that curl_multi_timeout returns a pathologically
757 * long timeout when curl_multi_fdset returns no file descriptors
758 * to read. See commit message for more details.
759 */
760 if (max_fd < 0 &&
761 (select_timeout.tv_sec > 0 ||
762 select_timeout.tv_usec > 50000)) {
763 select_timeout.tv_sec = 0;
764 select_timeout.tv_usec = 50000;
765 }
766
Mika Fischer6f9dd672011-11-04 14:19:25[diff] [blame]767 select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout);
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]768 }
769 }
770#else
771 while (slot->in_use) {
772 slot->curl_result = curl_easy_perform(slot->curl);
773 finish_active_slot(slot);
774 }
775#endif
776}
777
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]778static void release_active_slot(struct active_request_slot *slot)
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]779{
780 closedown_active_slot(slot);
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]781 if (slot->curl && curl_session_count > min_curl_sessions) {
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]782#ifdef USE_CURL_MULTI
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]783 curl_multi_remove_handle(curlm, slot->curl);
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]784#endif
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]785 curl_easy_cleanup(slot->curl);
786 slot->curl = NULL;
Tay Ray Chuanad75ebe2009-11-27 15:42:26[diff] [blame]787 curl_session_count--;
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]788 }
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]789#ifdef USE_CURL_MULTI
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]790 fill_active_slots();
Nick Hengeveldb3ca4e4e2006-06-06 16:41:32[diff] [blame]791#endif
Mark Wooding53f31382006-02-07 10:07:39[diff] [blame]792}
793
Nick Hengeveld29508e12005-11-18 19:02:58[diff] [blame]794void finish_all_active_slots(void)
795{
796 struct active_request_slot *slot = active_queue_head;
797
798 while (slot != NULL)
799 if (slot->in_use) {
800 run_active_slot(slot);
801 slot = active_queue_head;
802 } else {
803 slot = slot->next;
804 }
805}
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]806
Tay Ray Chuan5ace9942009-06-06 08:43:43[diff] [blame]807/* Helpers for modifying and creating URLs */
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]808static inline int needs_quote(int ch)
809{
810 if (((ch >= 'A') && (ch <= 'Z'))
811 || ((ch >= 'a') && (ch <= 'z'))
812 || ((ch >= '0') && (ch <= '9'))
813 || (ch == '/')
814 || (ch == '-')
815 || (ch == '.'))
816 return 0;
817 return 1;
818}
819
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]820static char *quote_ref_url(const char *base, const char *ref)
821{
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]822 struct strbuf buf = STRBUF_INIT;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]823 const char *cp;
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]824 int ch;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]825
Tay Ray Chuan5ace9942009-06-06 08:43:43[diff] [blame]826 end_url_with_slash(&buf, base);
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]827
828 for (cp = ref; (ch = *cp) != 0; cp++)
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]829 if (needs_quote(ch))
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]830 strbuf_addf(&buf, "%%%02x", ch);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]831 else
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]832 strbuf_addch(&buf, *cp);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]833
Tay Ray Chuan113106e2009-03-07 16:47:21[diff] [blame]834 return strbuf_detach(&buf, NULL);
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]835}
836
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]837void append_remote_object_url(struct strbuf *buf, const char *url,
838 const char *hex,
839 int only_two_digit_prefix)
840{
Tay Ray Chuan800324c2009-08-17 09:09:43[diff] [blame]841 end_url_with_slash(buf, url);
842
843 strbuf_addf(buf, "objects/%.*s/", 2, hex);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]844 if (!only_two_digit_prefix)
845 strbuf_addf(buf, "%s", hex+2);
846}
847
848char *get_remote_object_url(const char *url, const char *hex,
849 int only_two_digit_prefix)
850{
851 struct strbuf buf = STRBUF_INIT;
852 append_remote_object_url(&buf, url, hex, only_two_digit_prefix);
853 return strbuf_detach(&buf, NULL);
854}
855
Junio C Hamanob90a3d72015-01-14 23:40:46[diff] [blame]856static int handle_curl_result(struct slot_results *results)
Jeff King88097032012-08-27 13:26:04[diff] [blame]857{
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]858 /*
859 * If we see a failing http code with CURLE_OK, we have turned off
860 * FAILONERROR (to keep the server's custom error response), and should
861 * translate the code into failure here.
862 */
863 if (results->curl_result == CURLE_OK &&
864 results->http_code >= 400) {
865 results->curl_result = CURLE_HTTP_RETURNED_ERROR;
866 /*
867 * Normally curl will already have put the "reason phrase"
868 * from the server into curl_errorstr; unfortunately without
869 * FAILONERROR it is lost, so we can give only the numeric
870 * status code.
871 */
872 snprintf(curl_errorstr, sizeof(curl_errorstr),
873 "The requested URL returned error: %ld",
874 results->http_code);
875 }
876
Jeff King88097032012-08-27 13:26:04[diff] [blame]877 if (results->curl_result == CURLE_OK) {
878 credential_approve(&http_auth);
879 return HTTP_OK;
880 } else if (missing_target(results))
881 return HTTP_MISSING_TARGET;
882 else if (results->http_code == 401) {
883 if (http_auth.username && http_auth.password) {
884 credential_reject(&http_auth);
885 return HTTP_NOAUTH;
886 } else {
brian m. carlson4dbe6642015-01-08 00:29:20[diff] [blame]887#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
888 http_auth_methods &= ~CURLAUTH_GSSNEGOTIATE;
889#endif
Jeff King88097032012-08-27 13:26:04[diff] [blame]890 return HTTP_REAUTH;
891 }
892 } else {
Junio C Hamano3503e9a2012-09-12 21:08:05[diff] [blame]893#if LIBCURL_VERSION_NUM >= 0x070c00
Jeff King88097032012-08-27 13:26:04[diff] [blame]894 if (!curl_errorstr[0])
895 strlcpy(curl_errorstr,
896 curl_easy_strerror(results->curl_result),
897 sizeof(curl_errorstr));
Junio C Hamano3503e9a2012-09-12 21:08:05[diff] [blame]898#endif
Jeff King88097032012-08-27 13:26:04[diff] [blame]899 return HTTP_ERROR;
900 }
901}
902
Jeff Kingbeed3362014-02-18 10:34:20[diff] [blame]903int run_one_slot(struct active_request_slot *slot,
904 struct slot_results *results)
905{
906 slot->results = results;
907 if (!start_active_slot(slot)) {
908 snprintf(curl_errorstr, sizeof(curl_errorstr),
909 "failed to start HTTP request");
910 return HTTP_START_FAILED;
911 }
912
913 run_active_slot(slot);
914 return handle_curl_result(results);
915}
916
Jeff King132b70a2013-09-28 08:31:11[diff] [blame]917static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf)
918{
919 char *ptr;
920 CURLcode ret;
921
922 strbuf_reset(buf);
923 ret = curl_easy_getinfo(curl, info, &ptr);
924 if (!ret && ptr)
925 strbuf_addstr(buf, ptr);
926 return ret;
927}
928
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]929/*
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]930 * Check for and extract a content-type parameter. "raw"
931 * should be positioned at the start of the potential
932 * parameter, with any whitespace already removed.
933 *
934 * "name" is the name of the parameter. The value is appended
935 * to "out".
936 */
937static int extract_param(const char *raw, const char *name,
938 struct strbuf *out)
939{
940 size_t len = strlen(name);
941
942 if (strncasecmp(raw, name, len))
943 return -1;
944 raw += len;
945
946 if (*raw != '=')
947 return -1;
948 raw++;
949
Yi EungJunf34a6552014-06-17 22:11:53[diff] [blame]950 while (*raw && !isspace(*raw) && *raw != ';')
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]951 strbuf_addch(out, *raw++);
952 return 0;
953}
954
955/*
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]956 * Extract a normalized version of the content type, with any
957 * spaces suppressed, all letters lowercased, and no trailing ";"
958 * or parameters.
959 *
960 * Note that we will silently remove even invalid whitespace. For
961 * example, "text / plain" is specifically forbidden by RFC 2616,
962 * but "text/plain" is the only reasonable output, and this keeps
963 * our code simple.
964 *
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]965 * If the "charset" argument is not NULL, store the value of any
966 * charset parameter there.
967 *
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]968 * Example:
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]969 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]970 * "text / plain" -> "text/plain"
971 */
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]972static void extract_content_type(struct strbuf *raw, struct strbuf *type,
973 struct strbuf *charset)
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]974{
975 const char *p;
976
977 strbuf_reset(type);
978 strbuf_grow(type, raw->len);
979 for (p = raw->buf; *p; p++) {
980 if (isspace(*p))
981 continue;
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]982 if (*p == ';') {
983 p++;
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]984 break;
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]985 }
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]986 strbuf_addch(type, tolower(*p));
987 }
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]988
989 if (!charset)
990 return;
991
992 strbuf_reset(charset);
993 while (*p) {
Yi EungJunf34a6552014-06-17 22:11:53[diff] [blame]994 while (isspace(*p) || *p == ';')
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]995 p++;
996 if (!extract_param(p, "charset", charset))
997 return;
998 while (*p && !isspace(*p))
999 p++;
1000 }
Jeff Kingc553fd12014-05-22 09:36:12[diff] [blame]1001
1002 if (!charset->len && starts_with(type->buf, "text/"))
1003 strbuf_addstr(charset, "ISO-8859-1");
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]1004}
1005
Yi EungJunf18604b2015-01-28 12:04:37[diff] [blame]1006static void write_accept_language(struct strbuf *buf)
1007{
1008 /*
1009 * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than
1010 * that, q-value will be smaller than 0.001, the minimum q-value the
1011 * HTTP specification allows. See
1012 * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value.
1013 */
1014 const int MAX_DECIMAL_PLACES = 3;
1015 const int MAX_LANGUAGE_TAGS = 1000;
1016 const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE = 4000;
1017 char **language_tags = NULL;
1018 int num_langs = 0;
1019 const char *s = get_preferred_languages();
1020 int i;
1021 struct strbuf tag = STRBUF_INIT;
1022
1023 /* Don't add Accept-Language header if no language is preferred. */
1024 if (!s)
1025 return;
1026
1027 /*
1028 * Split the colon-separated string of preferred languages into
1029 * language_tags array.
1030 */
1031 do {
1032 /* collect language tag */
1033 for (; *s && (isalnum(*s) || *s == '_'); s++)
1034 strbuf_addch(&tag, *s == '_' ? '-' : *s);
1035
1036 /* skip .codeset, @modifier and any other unnecessary parts */
1037 while (*s && *s != ':')
1038 s++;
1039
1040 if (tag.len) {
1041 num_langs++;
1042 REALLOC_ARRAY(language_tags, num_langs);
1043 language_tags[num_langs - 1] = strbuf_detach(&tag, NULL);
1044 if (num_langs >= MAX_LANGUAGE_TAGS - 1) /* -1 for '*' */
1045 break;
1046 }
1047 } while (*s++);
1048
1049 /* write Accept-Language header into buf */
1050 if (num_langs) {
1051 int last_buf_len = 0;
1052 int max_q;
1053 int decimal_places;
1054 char q_format[32];
1055
1056 /* add '*' */
1057 REALLOC_ARRAY(language_tags, num_langs + 1);
1058 language_tags[num_langs++] = "*"; /* it's OK; this won't be freed */
1059
1060 /* compute decimal_places */
1061 for (max_q = 1, decimal_places = 0;
1062 max_q < num_langs && decimal_places <= MAX_DECIMAL_PLACES;
1063 decimal_places++, max_q *= 10)
1064 ;
1065
1066 sprintf(q_format, ";q=0.%%0%dd", decimal_places);
1067
1068 strbuf_addstr(buf, "Accept-Language: ");
1069
1070 for (i = 0; i < num_langs; i++) {
1071 if (i > 0)
1072 strbuf_addstr(buf, ", ");
1073
1074 strbuf_addstr(buf, language_tags[i]);
1075
1076 if (i > 0)
1077 strbuf_addf(buf, q_format, max_q - i);
1078
1079 if (buf->len > MAX_ACCEPT_LANGUAGE_HEADER_SIZE) {
1080 strbuf_remove(buf, last_buf_len, buf->len - last_buf_len);
1081 break;
1082 }
1083
1084 last_buf_len = buf->len;
1085 }
1086 }
1087
1088 /* free language tags -- last one is a static '*' */
1089 for (i = 0; i < num_langs - 1; i++)
1090 free(language_tags[i]);
1091 free(language_tags);
1092}
1093
1094/*
1095 * Get an Accept-Language header which indicates user's preferred languages.
1096 *
1097 * Examples:
1098 * LANGUAGE= -> ""
1099 * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1"
1100 * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1"
1101 * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1"
1102 * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1"
1103 * LANGUAGE= LANG=C -> ""
1104 */
1105static const char *get_accept_language(void)
1106{
1107 if (!cached_accept_language) {
1108 struct strbuf buf = STRBUF_INIT;
1109 write_accept_language(&buf);
1110 if (buf.len > 0)
1111 cached_accept_language = strbuf_detach(&buf, NULL);
1112 }
1113
1114 return cached_accept_language;
1115}
1116
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1117/* http_request() targets */
1118#define HTTP_REQUEST_STRBUF 0
1119#define HTTP_REQUEST_FILE 1
1120
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1121static int http_request(const char *url,
1122 void *result, int target,
1123 const struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1124{
1125 struct active_request_slot *slot;
1126 struct slot_results results;
1127 struct curl_slist *headers = NULL;
1128 struct strbuf buf = STRBUF_INIT;
Yi EungJunf18604b2015-01-28 12:04:37[diff] [blame]1129 const char *accept_language;
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1130 int ret;
1131
1132 slot = get_active_slot();
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1133 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1134
1135 if (result == NULL) {
1136 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
1137 } else {
1138 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
1139 curl_easy_setopt(slot->curl, CURLOPT_FILE, result);
1140
1141 if (target == HTTP_REQUEST_FILE) {
1142 long posn = ftell(result);
1143 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
1144 fwrite);
1145 if (posn > 0) {
1146 strbuf_addf(&buf, "Range: bytes=%ld-", posn);
1147 headers = curl_slist_append(headers, buf.buf);
1148 strbuf_reset(&buf);
1149 }
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1150 } else
1151 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
1152 fwrite_buffer);
1153 }
1154
Yi EungJunf18604b2015-01-28 12:04:37[diff] [blame]1155 accept_language = get_accept_language();
1156
1157 if (accept_language)
1158 headers = curl_slist_append(headers, accept_language);
1159
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1160 strbuf_addstr(&buf, "Pragma:");
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1161 if (options && options->no_cache)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1162 strbuf_addstr(&buf, " no-cache");
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1163 if (options && options->keep_error)
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1164 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1165
1166 headers = curl_slist_append(headers, buf.buf);
1167
1168 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1169 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
Shawn O. Pearceaa90b962012-09-19 23:12:02[diff] [blame]1170 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1171
Jeff Kingbeed3362014-02-18 10:34:20[diff] [blame]1172 ret = run_one_slot(slot, &results);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1173
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]1174 if (options && options->content_type) {
1175 struct strbuf raw = STRBUF_INIT;
1176 curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw);
Jeff Kinge3131622014-05-22 09:30:05[diff] [blame]1177 extract_content_type(&raw, options->content_type,
1178 options->charset);
Jeff Kingbf197fd2014-05-22 09:29:47[diff] [blame]1179 strbuf_release(&raw);
1180 }
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1181
Jeff King78868962013-09-28 08:32:02[diff] [blame]1182 if (options && options->effective_url)
1183 curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL,
1184 options->effective_url);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1185
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1186 curl_slist_free_all(headers);
1187 strbuf_release(&buf);
1188
1189 return ret;
1190}
1191
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1192/*
1193 * Update the "base" url to a more appropriate value, as deduced by
1194 * redirects seen when requesting a URL starting with "url".
1195 *
1196 * The "asked" parameter is a URL that we asked curl to access, and must begin
1197 * with "base".
1198 *
1199 * The "got" parameter is the URL that curl reported to us as where we ended
1200 * up.
1201 *
1202 * Returns 1 if we updated the base url, 0 otherwise.
1203 *
1204 * Our basic strategy is to compare "base" and "asked" to find the bits
1205 * specific to our request. We then strip those bits off of "got" to yield the
1206 * new base. So for example, if our base is "http://example.com/foo.git",
1207 * and we ask for "http://example.com/foo.git/info/refs", we might end up
1208 * with "https://other.example.com/foo.git/info/refs". We would want the
1209 * new URL to become "https://other.example.com/foo.git".
1210 *
1211 * Note that this assumes a sane redirect scheme. It's entirely possible
1212 * in the example above to end up at a URL that does not even end in
1213 * "info/refs". In such a case we simply punt, as there is not much we can
1214 * do (and such a scheme is unlikely to represent a real git repository,
1215 * which means we are likely about to abort anyway).
1216 */
1217static int update_url_from_redirect(struct strbuf *base,
1218 const char *asked,
1219 const struct strbuf *got)
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1220{
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1221 const char *tail;
1222 size_t tail_len;
1223
1224 if (!strcmp(asked, got->buf))
1225 return 0;
1226
Jeff Kingde8118e2014-06-18 19:57:17[diff] [blame]1227 if (!skip_prefix(asked, base->buf, &tail))
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1228 die("BUG: update_url_from_redirect: %s is not a superset of %s",
1229 asked, base->buf);
1230
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1231 tail_len = strlen(tail);
1232
1233 if (got->len < tail_len ||
1234 strcmp(tail, got->buf + got->len - tail_len))
1235 return 0; /* insane redirect scheme */
1236
1237 strbuf_reset(base);
1238 strbuf_add(base, got->buf, got->len - tail_len);
1239 return 1;
1240}
1241
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1242static int http_request_reauth(const char *url,
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1243 void *result, int target,
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1244 struct http_get_options *options)
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1245{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1246 int ret = http_request(url, result, target, options);
Jeff Kingc93c92f2013-09-28 08:34:05[diff] [blame]1247
1248 if (options && options->effective_url && options->base_url) {
1249 if (update_url_from_redirect(options->base_url,
1250 url, options->effective_url)) {
1251 credential_from_url(&http_auth, options->base_url->buf);
1252 url = options->effective_url->buf;
1253 }
1254 }
1255
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1256 if (ret != HTTP_REAUTH)
1257 return ret;
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1258
1259 /*
1260 * If we are using KEEP_ERROR, the previous request may have
1261 * put cruft into our output stream; we should clear it out before
1262 * making our next request. We only know how to do this for
1263 * the strbuf case, but that is enough to satisfy current callers.
1264 */
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1265 if (options && options->keep_error) {
Jeff King6d052d72013-04-05 22:14:06[diff] [blame]1266 switch (target) {
1267 case HTTP_REQUEST_STRBUF:
1268 strbuf_reset(result);
1269 break;
1270 default:
1271 die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
1272 }
1273 }
Jeff King2501aff2013-09-28 08:31:45[diff] [blame]1274
1275 credential_fill(&http_auth);
1276
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1277 return http_request(url, result, target, options);
Jeff King8d677ed2011-07-18 07:50:14[diff] [blame]1278}
1279
Shawn Pearce4656bf42013-01-31 21:02:07[diff] [blame]1280int http_get_strbuf(const char *url,
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1281 struct strbuf *result,
1282 struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1283{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1284 return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1285}
1286
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]1287/*
Jim Meyeringa7793a72012-03-28 08:41:54[diff] [blame]1288 * Downloads a URL and stores the result in the given file.
Junio C Hamano83e41e22010-01-12 06:26:08[diff] [blame]1289 *
1290 * If a previous interrupted download is detected (i.e. a previous temporary
1291 * file is still around) the download is resumed.
1292 */
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1293static int http_get_file(const char *url, const char *filename,
1294 struct http_get_options *options)
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1295{
1296 int ret;
1297 struct strbuf tmpfile = STRBUF_INIT;
1298 FILE *result;
1299
1300 strbuf_addf(&tmpfile, "%s.temp", filename);
1301 result = fopen(tmpfile.buf, "a");
Jeff King3d1fb762013-09-28 08:31:00[diff] [blame]1302 if (!result) {
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1303 error("Unable to open local file %s", tmpfile.buf);
1304 ret = HTTP_ERROR;
1305 goto cleanup;
1306 }
1307
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1308 ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options);
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1309 fclose(result);
1310
Jeff King3d1fb762013-09-28 08:31:00[diff] [blame]1311 if (ret == HTTP_OK && move_temp_to_file(tmpfile.buf, filename))
Mike Hommeye929cd22009-06-06 08:43:53[diff] [blame]1312 ret = HTTP_ERROR;
1313cleanup:
1314 strbuf_release(&tmpfile);
1315 return ret;
1316}
1317
Daniel Barkalowc13b2632008-04-26 19:53:09[diff] [blame]1318int http_fetch_ref(const char *base, struct ref *ref)
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1319{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1320 struct http_get_options options = {0};
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1321 char *url;
1322 struct strbuf buffer = STRBUF_INIT;
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1323 int ret = -1;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1324
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1325 options.no_cache = 1;
1326
Daniel Barkalowc13b2632008-04-26 19:53:09[diff] [blame]1327 url = quote_ref_url(base, ref->name);
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1328 if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) {
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1329 strbuf_rtrim(&buffer);
1330 if (buffer.len == 40)
1331 ret = get_sha1_hex(buffer.buf, ref->old_sha1);
Christian Couder59556542013-11-30 20:55:40[diff] [blame]1332 else if (starts_with(buffer.buf, "ref: ")) {
Mike Hommey0d5896e2009-06-06 08:43:55[diff] [blame]1333 ref->symref = xstrdup(buffer.buf + 5);
1334 ret = 0;
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1335 }
Mike Hommeyd7e92802007-12-10 23:08:25[diff] [blame]1336 }
1337
1338 strbuf_release(&buffer);
1339 free(url);
1340 return ret;
1341}
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1342
1343/* Helpers for fetching packs */
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1344static char *fetch_pack_index(unsigned char *sha1, const char *base_url)
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1345{
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1346 char *url, *tmp;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1347 struct strbuf buf = STRBUF_INIT;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1348
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1349 if (http_is_verbose)
Shawn O. Pearce162eb5f2010-04-19 14:23:05[diff] [blame]1350 fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1));
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1351
1352 end_url_with_slash(&buf, base_url);
Shawn O. Pearce162eb5f2010-04-19 14:23:05[diff] [blame]1353 strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1));
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1354 url = strbuf_detach(&buf, NULL);
1355
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1356 strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1));
1357 tmp = strbuf_detach(&buf, NULL);
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1358
Ramsay Jones70900ed2013-10-24 20:17:19[diff] [blame]1359 if (http_get_file(url, tmp, NULL) != HTTP_OK) {
Pete Wyckoff82247e92012-04-30 00:28:45[diff] [blame]1360 error("Unable to get pack index %s", url);
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1361 free(tmp);
1362 tmp = NULL;
1363 }
1364
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1365 free(url);
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1366 return tmp;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1367}
1368
1369static int fetch_and_setup_pack_index(struct packed_git **packs_head,
1370 unsigned char *sha1, const char *base_url)
1371{
1372 struct packed_git *new_pack;
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1373 char *tmp_idx = NULL;
1374 int ret;
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1375
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1376 if (has_pack_index(sha1)) {
Jeff King8b9c2dd2015-01-27 20:02:27[diff] [blame]1377 new_pack = parse_pack_index(sha1, sha1_pack_index_name(sha1));
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1378 if (!new_pack)
1379 return -1; /* parse_pack_index() already issued error message */
1380 goto add_pack;
1381 }
1382
1383 tmp_idx = fetch_pack_index(sha1, base_url);
1384 if (!tmp_idx)
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1385 return -1;
1386
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1387 new_pack = parse_pack_index(sha1, tmp_idx);
1388 if (!new_pack) {
1389 unlink(tmp_idx);
1390 free(tmp_idx);
1391
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1392 return -1; /* parse_pack_index() already issued error message */
Shawn O. Pearce750ef422010-04-19 14:23:10[diff] [blame]1393 }
1394
1395 ret = verify_pack_index(new_pack);
1396 if (!ret) {
1397 close_pack_index(new_pack);
1398 ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1));
1399 }
1400 free(tmp_idx);
1401 if (ret)
1402 return -1;
1403
1404add_pack:
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1405 new_pack->next = *packs_head;
1406 *packs_head = new_pack;
1407 return 0;
1408}
1409
1410int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
1411{
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1412 struct http_get_options options = {0};
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1413 int ret = 0, i = 0;
1414 char *url, *data;
1415 struct strbuf buf = STRBUF_INIT;
1416 unsigned char sha1[20];
1417
1418 end_url_with_slash(&buf, base_url);
1419 strbuf_addstr(&buf, "objects/info/packs");
1420 url = strbuf_detach(&buf, NULL);
1421
Jeff King1bbcc222013-09-28 08:31:23[diff] [blame]1422 options.no_cache = 1;
1423 ret = http_get_strbuf(url, &buf, &options);
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1424 if (ret != HTTP_OK)
1425 goto cleanup;
1426
1427 data = buf.buf;
1428 while (i < buf.len) {
1429 switch (data[i]) {
1430 case 'P':
1431 i++;
1432 if (i + 52 <= buf.len &&
Christian Couder59556542013-11-30 20:55:40[diff] [blame]1433 starts_with(data + i, " pack-") &&
1434 starts_with(data + i + 46, ".pack\n")) {
Tay Ray Chuanb8caac22009-06-06 08:43:59[diff] [blame]1435 get_sha1_hex(data + i + 6, sha1);
1436 fetch_and_setup_pack_index(packs_head, sha1,
1437 base_url);
1438 i += 51;
1439 break;
1440 }
1441 default:
1442 while (i < buf.len && data[i] != '\n')
1443 i++;
1444 }
1445 i++;
1446 }
1447
1448cleanup:
1449 free(url);
1450 return ret;
1451}
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1452
1453void release_http_pack_request(struct http_pack_request *preq)
1454{
1455 if (preq->packfile != NULL) {
1456 fclose(preq->packfile);
1457 preq->packfile = NULL;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1458 }
1459 if (preq->range_header != NULL) {
1460 curl_slist_free_all(preq->range_header);
1461 preq->range_header = NULL;
1462 }
1463 preq->slot = NULL;
1464 free(preq->url);
Stefan Beller826aed52015-03-21 00:28:06[diff] [blame]1465 free(preq);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1466}
1467
1468int finish_http_pack_request(struct http_pack_request *preq)
1469{
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1470 struct packed_git **lst;
Shawn O. Pearce021ab6f2010-04-17 20:07:36[diff] [blame]1471 struct packed_git *p = preq->target;
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1472 char *tmp_idx;
René Scharfed3180272014-08-19 19:09:35[diff] [blame]1473 struct child_process ip = CHILD_PROCESS_INIT;
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1474 const char *ip_argv[8];
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1475
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1476 close_pack_index(p);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1477
Shawn O. Pearce30652742010-04-17 20:07:37[diff] [blame]1478 fclose(preq->packfile);
1479 preq->packfile = NULL;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1480
1481 lst = preq->lst;
Shawn O. Pearce021ab6f2010-04-17 20:07:36[diff] [blame]1482 while (*lst != p)
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1483 lst = &((*lst)->next);
1484 *lst = (*lst)->next;
1485
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1486 tmp_idx = xstrdup(preq->tmpfile);
1487 strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"),
1488 ".idx.temp");
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1489
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1490 ip_argv[0] = "index-pack";
1491 ip_argv[1] = "-o";
1492 ip_argv[2] = tmp_idx;
1493 ip_argv[3] = preq->tmpfile;
1494 ip_argv[4] = NULL;
1495
Shawn O. Pearcefe72d422010-04-19 14:23:09[diff] [blame]1496 ip.argv = ip_argv;
1497 ip.git_cmd = 1;
1498 ip.no_stdin = 1;
1499 ip.no_stdout = 1;
1500
1501 if (run_command(&ip)) {
1502 unlink(preq->tmpfile);
1503 unlink(tmp_idx);
1504 free(tmp_idx);
1505 return -1;
1506 }
1507
1508 unlink(sha1_pack_index_name(p->sha1));
1509
1510 if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1))
1511 || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) {
1512 free(tmp_idx);
1513 return -1;
1514 }
1515
1516 install_packed_git(p);
1517 free(tmp_idx);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1518 return 0;
1519}
1520
1521struct http_pack_request *new_http_pack_request(
1522 struct packed_git *target, const char *base_url)
1523{
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1524 long prev_posn = 0;
1525 char range[RANGE_HEADER_SIZE];
1526 struct strbuf buf = STRBUF_INIT;
1527 struct http_pack_request *preq;
1528
Tay Ray Chuanec99c9a2011-08-03 11:54:03[diff] [blame]1529 preq = xcalloc(1, sizeof(*preq));
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1530 preq->target = target;
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1531
1532 end_url_with_slash(&buf, base_url);
1533 strbuf_addf(&buf, "objects/pack/pack-%s.pack",
1534 sha1_to_hex(target->sha1));
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1535 preq->url = strbuf_detach(&buf, NULL);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1536
Tay Ray Chuan90d05712010-04-19 14:46:43[diff] [blame]1537 snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp",
1538 sha1_pack_name(target->sha1));
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1539 preq->packfile = fopen(preq->tmpfile, "a");
1540 if (!preq->packfile) {
1541 error("Unable to open local file %s for pack",
1542 preq->tmpfile);
1543 goto abort;
1544 }
1545
1546 preq->slot = get_active_slot();
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1547 curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile);
1548 curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1549 curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1550 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1551 no_pragma_header);
1552
1553 /*
1554 * If there is data present from a previous transfer attempt,
1555 * resume where it left off
1556 */
1557 prev_posn = ftell(preq->packfile);
1558 if (prev_posn>0) {
1559 if (http_is_verbose)
1560 fprintf(stderr,
1561 "Resuming fetch of pack %s at byte %ld\n",
1562 sha1_to_hex(target->sha1), prev_posn);
1563 sprintf(range, "Range: bytes=%ld-", prev_posn);
1564 preq->range_header = curl_slist_append(NULL, range);
1565 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1566 preq->range_header);
1567 }
1568
1569 return preq;
1570
1571abort:
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1572 free(preq->url);
Tay Ray Chuan5ae9ebf2009-08-10 15:55:48[diff] [blame]1573 free(preq);
Tay Ray Chuan2264dfa2009-06-06 08:44:01[diff] [blame]1574 return NULL;
1575}
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1576
1577/* Helpers for fetching objects (loose) */
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1578static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb,
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1579 void *data)
1580{
1581 unsigned char expn[4096];
1582 size_t size = eltsize * nmemb;
1583 int posn = 0;
1584 struct http_object_request *freq =
1585 (struct http_object_request *)data;
1586 do {
1587 ssize_t retval = xwrite(freq->localfile,
1588 (char *) ptr + posn, size - posn);
1589 if (retval < 0)
1590 return posn;
1591 posn += retval;
1592 } while (posn < size);
1593
1594 freq->stream.avail_in = size;
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1595 freq->stream.next_in = (void *)ptr;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1596 do {
1597 freq->stream.next_out = expn;
1598 freq->stream.avail_out = sizeof(expn);
1599 freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH);
1600 git_SHA1_Update(&freq->c, expn,
1601 sizeof(expn) - freq->stream.avail_out);
1602 } while (freq->stream.avail_in && freq->zret == Z_OK);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1603 return size;
1604}
1605
1606struct http_object_request *new_http_object_request(const char *base_url,
1607 unsigned char *sha1)
1608{
1609 char *hex = sha1_to_hex(sha1);
Michael Haggerty30d6c6e2014-02-21 16:32:05[diff] [blame]1610 const char *filename;
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1611 char prevfile[PATH_MAX];
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1612 int prevlocal;
Dan McGeea04ff3e2011-05-03 15:47:27[diff] [blame]1613 char prev_buf[PREV_BUF_SIZE];
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1614 ssize_t prev_read = 0;
1615 long prev_posn = 0;
1616 char range[RANGE_HEADER_SIZE];
1617 struct curl_slist *range_header = NULL;
1618 struct http_object_request *freq;
1619
Tay Ray Chuanec99c9a2011-08-03 11:54:03[diff] [blame]1620 freq = xcalloc(1, sizeof(*freq));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1621 hashcpy(freq->sha1, sha1);
1622 freq->localfile = -1;
1623
1624 filename = sha1_file_name(sha1);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1625 snprintf(freq->tmpfile, sizeof(freq->tmpfile),
1626 "%s.temp", filename);
1627
1628 snprintf(prevfile, sizeof(prevfile), "%s.prev", filename);
1629 unlink_or_warn(prevfile);
1630 rename(freq->tmpfile, prevfile);
1631 unlink_or_warn(freq->tmpfile);
1632
1633 if (freq->localfile != -1)
1634 error("fd leakage in start: %d", freq->localfile);
1635 freq->localfile = open(freq->tmpfile,
1636 O_WRONLY | O_CREAT | O_EXCL, 0666);
1637 /*
1638 * This could have failed due to the "lazy directory creation";
1639 * try to mkdir the last path component.
1640 */
1641 if (freq->localfile < 0 && errno == ENOENT) {
1642 char *dir = strrchr(freq->tmpfile, '/');
1643 if (dir) {
1644 *dir = 0;
1645 mkdir(freq->tmpfile, 0777);
1646 *dir = '/';
1647 }
1648 freq->localfile = open(freq->tmpfile,
1649 O_WRONLY | O_CREAT | O_EXCL, 0666);
1650 }
1651
1652 if (freq->localfile < 0) {
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1653 error("Couldn't create temporary file %s: %s",
1654 freq->tmpfile, strerror(errno));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1655 goto abort;
1656 }
1657
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1658 git_inflate_init(&freq->stream);
1659
1660 git_SHA1_Init(&freq->c);
1661
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1662 freq->url = get_remote_object_url(base_url, hex, 0);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1663
1664 /*
1665 * If a previous temp file is present, process what was already
1666 * fetched.
1667 */
1668 prevlocal = open(prevfile, O_RDONLY);
1669 if (prevlocal != -1) {
1670 do {
1671 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
1672 if (prev_read>0) {
1673 if (fwrite_sha1_file(prev_buf,
1674 1,
1675 prev_read,
1676 freq) == prev_read) {
1677 prev_posn += prev_read;
1678 } else {
1679 prev_read = -1;
1680 }
1681 }
1682 } while (prev_read > 0);
1683 close(prevlocal);
1684 }
1685 unlink_or_warn(prevfile);
1686
1687 /*
1688 * Reset inflate/SHA1 if there was an error reading the previous temp
1689 * file; also rewind to the beginning of the local file.
1690 */
1691 if (prev_read == -1) {
1692 memset(&freq->stream, 0, sizeof(freq->stream));
1693 git_inflate_init(&freq->stream);
1694 git_SHA1_Init(&freq->c);
1695 if (prev_posn>0) {
1696 prev_posn = 0;
1697 lseek(freq->localfile, 0, SEEK_SET);
Jeff Lasslett0c4f21e2009-08-10 16:05:06[diff] [blame]1698 if (ftruncate(freq->localfile, 0) < 0) {
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1699 error("Couldn't truncate temporary file %s: %s",
1700 freq->tmpfile, strerror(errno));
Jeff Lasslett0c4f21e2009-08-10 16:05:06[diff] [blame]1701 goto abort;
1702 }
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1703 }
1704 }
1705
1706 freq->slot = get_active_slot();
1707
1708 curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
1709 curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
1710 curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1711 curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1712 curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
1713
1714 /*
1715 * If we have successfully processed data from a previous fetch
1716 * attempt, only fetch the data we don't already have.
1717 */
1718 if (prev_posn>0) {
1719 if (http_is_verbose)
1720 fprintf(stderr,
1721 "Resuming fetch of object %s at byte %ld\n",
1722 hex, prev_posn);
1723 sprintf(range, "Range: bytes=%ld-", prev_posn);
1724 range_header = curl_slist_append(range_header, range);
1725 curl_easy_setopt(freq->slot->curl,
1726 CURLOPT_HTTPHEADER, range_header);
1727 }
1728
1729 return freq;
1730
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1731abort:
Tay Ray Chuanbb991902009-08-10 15:59:55[diff] [blame]1732 free(freq->url);
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1733 free(freq);
1734 return NULL;
1735}
1736
1737void process_http_object_request(struct http_object_request *freq)
1738{
1739 if (freq->slot == NULL)
1740 return;
1741 freq->curl_result = freq->slot->curl_result;
1742 freq->http_code = freq->slot->http_code;
1743 freq->slot = NULL;
1744}
1745
1746int finish_http_object_request(struct http_object_request *freq)
1747{
1748 struct stat st;
1749
1750 close(freq->localfile);
1751 freq->localfile = -1;
1752
1753 process_http_object_request(freq);
1754
1755 if (freq->http_code == 416) {
Thiago Farinabd757c12010-01-03 16:20:30[diff] [blame]1756 warning("requested range invalid; we may already have all the data.");
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1757 } else if (freq->curl_result != CURLE_OK) {
1758 if (stat(freq->tmpfile, &st) == 0)
1759 if (st.st_size == 0)
1760 unlink_or_warn(freq->tmpfile);
1761 return -1;
1762 }
1763
1764 git_inflate_end(&freq->stream);
1765 git_SHA1_Final(freq->real_sha1, &freq->c);
1766 if (freq->zret != Z_STREAM_END) {
1767 unlink_or_warn(freq->tmpfile);
1768 return -1;
1769 }
1770 if (hashcmp(freq->sha1, freq->real_sha1)) {
1771 unlink_or_warn(freq->tmpfile);
1772 return -1;
1773 }
1774 freq->rename =
Shawn O. Pearce0da8b2e2010-04-17 20:07:38[diff] [blame]1775 move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1));
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1776
1777 return freq->rename;
1778}
1779
1780void abort_http_object_request(struct http_object_request *freq)
1781{
1782 unlink_or_warn(freq->tmpfile);
1783
1784 release_http_object_request(freq);
1785}
1786
1787void release_http_object_request(struct http_object_request *freq)
1788{
1789 if (freq->localfile != -1) {
1790 close(freq->localfile);
1791 freq->localfile = -1;
1792 }
1793 if (freq->url != NULL) {
1794 free(freq->url);
1795 freq->url = NULL;
1796 }
Tay Ray Chuan4b9fa0e2009-08-26 12:20:53[diff] [blame]1797 if (freq->slot != NULL) {
1798 freq->slot->callback_func = NULL;
1799 freq->slot->callback_data = NULL;
1800 release_active_slot(freq->slot);
1801 freq->slot = NULL;
1802 }
Tay Ray Chuan5424bc52009-06-06 08:44:02[diff] [blame]1803}