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Merge branch 'db/http-savecookies'
[git/raj.git] / http.c
blob2fbf986231d0e23b1d2c15c8d9121f1129139097
1 #include "http.h"
2 #include "pack.h"
3 #include "sideband.h"
4 #include "run-command.h"
5 #include "url.h"
6 #include "credential.h"
7 #include "version.h"
8 #include "pkt-line.h"
9
10 int active_requests;
11 int http_is_verbose;
12 size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
13
14 #if LIBCURL_VERSION_NUM >= 0x070a06
15 #define LIBCURL_CAN_HANDLE_AUTH_ANY
16 #endif
17
18 static int min_curl_sessions = 1;
19 static int curl_session_count;
20 #ifdef USE_CURL_MULTI
21 static int max_requests = -1;
22 static CURLM *curlm;
23 #endif
24 #ifndef NO_CURL_EASY_DUPHANDLE
25 static CURL *curl_default;
26 #endif
27
28 #define PREV_BUF_SIZE 4096
29 #define RANGE_HEADER_SIZE 30
30
31 char curl_errorstr[CURL_ERROR_SIZE];
32
33 static int curl_ssl_verify = -1;
34 static int curl_ssl_try;
35 static const char *ssl_cert;
36 #if LIBCURL_VERSION_NUM >= 0x070903
37 static const char *ssl_key;
38 #endif
39 #if LIBCURL_VERSION_NUM >= 0x070908
40 static const char *ssl_capath;
41 #endif
42 static const char *ssl_cainfo;
43 static long curl_low_speed_limit = -1;
44 static long curl_low_speed_time = -1;
45 static int curl_ftp_no_epsv;
46 static const char *curl_http_proxy;
47 static const char *curl_cookie_file;
48 static int curl_save_cookies;
49 static struct credential http_auth = CREDENTIAL_INIT;
50 static int http_proactive_auth;
51 static const char *user_agent;
52
53 #if LIBCURL_VERSION_NUM >= 0x071700
54 /* Use CURLOPT_KEYPASSWD as is */
55 #elif LIBCURL_VERSION_NUM >= 0x070903
56 #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
57 #else
58 #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
59 #endif
60
61 static struct credential cert_auth = CREDENTIAL_INIT;
62 static int ssl_cert_password_required;
63
64 static struct curl_slist *pragma_header;
65 static struct curl_slist *no_pragma_header;
66
67 static struct active_request_slot *active_queue_head;
68
69 size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
70 {
71 size_t size = eltsize * nmemb;
72 struct buffer *buffer = buffer_;
73
74 if (size > buffer->buf.len - buffer->posn)
75 size = buffer->buf.len - buffer->posn;
76 memcpy(ptr, buffer->buf.buf + buffer->posn, size);
77 buffer->posn += size;
78
79 return size;
80 }
81
82 #ifndef NO_CURL_IOCTL
83 curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp)
84 {
85 struct buffer *buffer = clientp;
86
87 switch (cmd) {
88 case CURLIOCMD_NOP:
89 return CURLIOE_OK;
90
91 case CURLIOCMD_RESTARTREAD:
92 buffer->posn = 0;
93 return CURLIOE_OK;
94
95 default:
96 return CURLIOE_UNKNOWNCMD;
97 }
98 }
99 #endif
100
101 size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
102 {
103 size_t size = eltsize * nmemb;
104 struct strbuf *buffer = buffer_;
105
106 strbuf_add(buffer, ptr, size);
107 return size;
108 }
109
110 size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf)
111 {
112 return eltsize * nmemb;
113 }
114
115 #ifdef USE_CURL_MULTI
116 static void process_curl_messages(void)
117 {
118 int num_messages;
119 struct active_request_slot *slot;
120 CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages);
121
122 while (curl_message != NULL) {
123 if (curl_message->msg == CURLMSG_DONE) {
124 int curl_result = curl_message->data.result;
125 slot = active_queue_head;
126 while (slot != NULL &&
127 slot->curl != curl_message->easy_handle)
128 slot = slot->next;
129 if (slot != NULL) {
130 curl_multi_remove_handle(curlm, slot->curl);
131 slot->curl_result = curl_result;
132 finish_active_slot(slot);
133 } else {
134 fprintf(stderr, "Received DONE message for unknown request!\n");
135 }
136 } else {
137 fprintf(stderr, "Unknown CURL message received: %d\n",
138 (int)curl_message->msg);
139 }
140 curl_message = curl_multi_info_read(curlm, &num_messages);
141 }
142 }
143 #endif
144
145 static int http_options(const char *var, const char *value, void *cb)
146 {
147 if (!strcmp("http.sslverify", var)) {
148 curl_ssl_verify = git_config_bool(var, value);
149 return 0;
150 }
151 if (!strcmp("http.sslcert", var))
152 return git_config_string(&ssl_cert, var, value);
153 #if LIBCURL_VERSION_NUM >= 0x070903
154 if (!strcmp("http.sslkey", var))
155 return git_config_string(&ssl_key, var, value);
156 #endif
157 #if LIBCURL_VERSION_NUM >= 0x070908
158 if (!strcmp("http.sslcapath", var))
159 return git_config_string(&ssl_capath, var, value);
160 #endif
161 if (!strcmp("http.sslcainfo", var))
162 return git_config_string(&ssl_cainfo, var, value);
163 if (!strcmp("http.sslcertpasswordprotected", var)) {
164 if (git_config_bool(var, value))
165 ssl_cert_password_required = 1;
166 return 0;
167 }
168 if (!strcmp("http.ssltry", var)) {
169 curl_ssl_try = git_config_bool(var, value);
170 return 0;
171 }
172 if (!strcmp("http.minsessions", var)) {
173 min_curl_sessions = git_config_int(var, value);
174 #ifndef USE_CURL_MULTI
175 if (min_curl_sessions > 1)
176 min_curl_sessions = 1;
177 #endif
178 return 0;
179 }
180 #ifdef USE_CURL_MULTI
181 if (!strcmp("http.maxrequests", var)) {
182 max_requests = git_config_int(var, value);
183 return 0;
184 }
185 #endif
186 if (!strcmp("http.lowspeedlimit", var)) {
187 curl_low_speed_limit = (long)git_config_int(var, value);
188 return 0;
189 }
190 if (!strcmp("http.lowspeedtime", var)) {
191 curl_low_speed_time = (long)git_config_int(var, value);
192 return 0;
193 }
194
195 if (!strcmp("http.noepsv", var)) {
196 curl_ftp_no_epsv = git_config_bool(var, value);
197 return 0;
198 }
199 if (!strcmp("http.proxy", var))
200 return git_config_string(&curl_http_proxy, var, value);
201
202 if (!strcmp("http.cookiefile", var))
203 return git_config_string(&curl_cookie_file, var, value);
204 if (!strcmp("http.savecookies", var)) {
205 curl_save_cookies = git_config_bool(var, value);
206 return 0;
207 }
208
209 if (!strcmp("http.postbuffer", var)) {
210 http_post_buffer = git_config_int(var, value);
211 if (http_post_buffer < LARGE_PACKET_MAX)
212 http_post_buffer = LARGE_PACKET_MAX;
213 return 0;
214 }
215
216 if (!strcmp("http.useragent", var))
217 return git_config_string(&user_agent, var, value);
218
219 /* Fall back on the default ones */
220 return git_default_config(var, value, cb);
221 }
222
223 static void init_curl_http_auth(CURL *result)
224 {
225 if (!http_auth.username)
226 return;
227
228 credential_fill(&http_auth);
229
230 #if LIBCURL_VERSION_NUM >= 0x071301
231 curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username);
232 curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password);
233 #else
234 {
235 static struct strbuf up = STRBUF_INIT;
236 /*
237 * Note that we assume we only ever have a single set of
238 * credentials in a given program run, so we do not have
239 * to worry about updating this buffer, only setting its
240 * initial value.
241 */
242 if (!up.len)
243 strbuf_addf(&up, "%s:%s",
244 http_auth.username, http_auth.password);
245 curl_easy_setopt(result, CURLOPT_USERPWD, up.buf);
246 }
247 #endif
248 }
249
250 static int has_cert_password(void)
251 {
252 if (ssl_cert == NULL || ssl_cert_password_required != 1)
253 return 0;
254 if (!cert_auth.password) {
255 cert_auth.protocol = xstrdup("cert");
256 cert_auth.username = xstrdup("");
257 cert_auth.path = xstrdup(ssl_cert);
258 credential_fill(&cert_auth);
259 }
260 return 1;
261 }
262
263 static CURL *get_curl_handle(void)
264 {
265 CURL *result = curl_easy_init();
266
267 if (!curl_ssl_verify) {
268 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0);
269 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0);
270 } else {
271 /* Verify authenticity of the peer's certificate */
272 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1);
273 /* The name in the cert must match whom we tried to connect */
274 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
275 }
276
277 #if LIBCURL_VERSION_NUM >= 0x070907
278 curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
279 #endif
280 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
281 curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
282 #endif
283
284 if (http_proactive_auth)
285 init_curl_http_auth(result);
286
287 if (ssl_cert != NULL)
288 curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
289 if (has_cert_password())
290 curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password);
291 #if LIBCURL_VERSION_NUM >= 0x070903
292 if (ssl_key != NULL)
293 curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
294 #endif
295 #if LIBCURL_VERSION_NUM >= 0x070908
296 if (ssl_capath != NULL)
297 curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
298 #endif
299 if (ssl_cainfo != NULL)
300 curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
301
302 if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
303 curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
304 curl_low_speed_limit);
305 curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME,
306 curl_low_speed_time);
307 }
308
309 curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1);
310 #if LIBCURL_VERSION_NUM >= 0x071301
311 curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
312 #elif LIBCURL_VERSION_NUM >= 0x071101
313 curl_easy_setopt(result, CURLOPT_POST301, 1);
314 #endif
315
316 if (getenv("GIT_CURL_VERBOSE"))
317 curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
318
319 curl_easy_setopt(result, CURLOPT_USERAGENT,
320 user_agent ? user_agent : git_user_agent());
321
322 if (curl_ftp_no_epsv)
323 curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
324
325 #ifdef CURLOPT_USE_SSL
326 if (curl_ssl_try)
327 curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
328 #endif
329
330 if (curl_http_proxy) {
331 curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
332 curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
333 }
334
335 return result;
336 }
337
338 static void set_from_env(const char **var, const char *envname)
339 {
340 const char *val = getenv(envname);
341 if (val)
342 *var = val;
343 }
344
345 void http_init(struct remote *remote, const char *url, int proactive_auth)
346 {
347 char *low_speed_limit;
348 char *low_speed_time;
349
350 http_is_verbose = 0;
351
352 git_config(http_options, NULL);
353
354 curl_global_init(CURL_GLOBAL_ALL);
355
356 http_proactive_auth = proactive_auth;
357
358 if (remote && remote->http_proxy)
359 curl_http_proxy = xstrdup(remote->http_proxy);
360
361 pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache");
362 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
363
364 #ifdef USE_CURL_MULTI
365 {
366 char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
367 if (http_max_requests != NULL)
368 max_requests = atoi(http_max_requests);
369 }
370
371 curlm = curl_multi_init();
372 if (curlm == NULL) {
373 fprintf(stderr, "Error creating curl multi handle.\n");
374 exit(1);
375 }
376 #endif
377
378 if (getenv("GIT_SSL_NO_VERIFY"))
379 curl_ssl_verify = 0;
380
381 set_from_env(&ssl_cert, "GIT_SSL_CERT");
382 #if LIBCURL_VERSION_NUM >= 0x070903
383 set_from_env(&ssl_key, "GIT_SSL_KEY");
384 #endif
385 #if LIBCURL_VERSION_NUM >= 0x070908
386 set_from_env(&ssl_capath, "GIT_SSL_CAPATH");
387 #endif
388 set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO");
389
390 set_from_env(&user_agent, "GIT_HTTP_USER_AGENT");
391
392 low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
393 if (low_speed_limit != NULL)
394 curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
395 low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME");
396 if (low_speed_time != NULL)
397 curl_low_speed_time = strtol(low_speed_time, NULL, 10);
398
399 if (curl_ssl_verify == -1)
400 curl_ssl_verify = 1;
401
402 curl_session_count = 0;
403 #ifdef USE_CURL_MULTI
404 if (max_requests < 1)
405 max_requests = DEFAULT_MAX_REQUESTS;
406 #endif
407
408 if (getenv("GIT_CURL_FTP_NO_EPSV"))
409 curl_ftp_no_epsv = 1;
410
411 if (url) {
412 credential_from_url(&http_auth, url);
413 if (!ssl_cert_password_required &&
414 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
415 !prefixcmp(url, "https://"))
416 ssl_cert_password_required = 1;
417 }
418
419 #ifndef NO_CURL_EASY_DUPHANDLE
420 curl_default = get_curl_handle();
421 #endif
422 }
423
424 void http_cleanup(void)
425 {
426 struct active_request_slot *slot = active_queue_head;
427
428 while (slot != NULL) {
429 struct active_request_slot *next = slot->next;
430 if (slot->curl != NULL) {
431 #ifdef USE_CURL_MULTI
432 curl_multi_remove_handle(curlm, slot->curl);
433 #endif
434 curl_easy_cleanup(slot->curl);
435 }
436 free(slot);
437 slot = next;
438 }
439 active_queue_head = NULL;
440
441 #ifndef NO_CURL_EASY_DUPHANDLE
442 curl_easy_cleanup(curl_default);
443 #endif
444
445 #ifdef USE_CURL_MULTI
446 curl_multi_cleanup(curlm);
447 #endif
448 curl_global_cleanup();
449
450 curl_slist_free_all(pragma_header);
451 pragma_header = NULL;
452
453 curl_slist_free_all(no_pragma_header);
454 no_pragma_header = NULL;
455
456 if (curl_http_proxy) {
457 free((void *)curl_http_proxy);
458 curl_http_proxy = NULL;
459 }
460
461 if (cert_auth.password != NULL) {
462 memset(cert_auth.password, 0, strlen(cert_auth.password));
463 free(cert_auth.password);
464 cert_auth.password = NULL;
465 }
466 ssl_cert_password_required = 0;
467 }
468
469 struct active_request_slot *get_active_slot(void)
470 {
471 struct active_request_slot *slot = active_queue_head;
472 struct active_request_slot *newslot;
473
474 #ifdef USE_CURL_MULTI
475 int num_transfers;
476
477 /* Wait for a slot to open up if the queue is full */
478 while (active_requests >= max_requests) {
479 curl_multi_perform(curlm, &num_transfers);
480 if (num_transfers < active_requests)
481 process_curl_messages();
482 }
483 #endif
484
485 while (slot != NULL && slot->in_use)
486 slot = slot->next;
487
488 if (slot == NULL) {
489 newslot = xmalloc(sizeof(*newslot));
490 newslot->curl = NULL;
491 newslot->in_use = 0;
492 newslot->next = NULL;
493
494 slot = active_queue_head;
495 if (slot == NULL) {
496 active_queue_head = newslot;
497 } else {
498 while (slot->next != NULL)
499 slot = slot->next;
500 slot->next = newslot;
501 }
502 slot = newslot;
503 }
504
505 if (slot->curl == NULL) {
506 #ifdef NO_CURL_EASY_DUPHANDLE
507 slot->curl = get_curl_handle();
508 #else
509 slot->curl = curl_easy_duphandle(curl_default);
510 #endif
511 curl_session_count++;
512 }
513
514 active_requests++;
515 slot->in_use = 1;
516 slot->results = NULL;
517 slot->finished = NULL;
518 slot->callback_data = NULL;
519 slot->callback_func = NULL;
520 curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file);
521 if (curl_save_cookies)
522 curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file);
523 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
524 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
525 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
526 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL);
527 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL);
528 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL);
529 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0);
530 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
531 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
532 if (http_auth.password)
533 init_curl_http_auth(slot->curl);
534
535 return slot;
536 }
537
538 int start_active_slot(struct active_request_slot *slot)
539 {
540 #ifdef USE_CURL_MULTI
541 CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
542 int num_transfers;
543
544 if (curlm_result != CURLM_OK &&
545 curlm_result != CURLM_CALL_MULTI_PERFORM) {
546 active_requests--;
547 slot->in_use = 0;
548 return 0;
549 }
550
551 /*
552 * We know there must be something to do, since we just added
553 * something.
554 */
555 curl_multi_perform(curlm, &num_transfers);
556 #endif
557 return 1;
558 }
559
560 #ifdef USE_CURL_MULTI
561 struct fill_chain {
562 void *data;
563 int (*fill)(void *);
564 struct fill_chain *next;
565 };
566
567 static struct fill_chain *fill_cfg;
568
569 void add_fill_function(void *data, int (*fill)(void *))
570 {
571 struct fill_chain *new = xmalloc(sizeof(*new));
572 struct fill_chain **linkp = &fill_cfg;
573 new->data = data;
574 new->fill = fill;
575 new->next = NULL;
576 while (*linkp)
577 linkp = &(*linkp)->next;
578 *linkp = new;
579 }
580
581 void fill_active_slots(void)
582 {
583 struct active_request_slot *slot = active_queue_head;
584
585 while (active_requests < max_requests) {
586 struct fill_chain *fill;
587 for (fill = fill_cfg; fill; fill = fill->next)
588 if (fill->fill(fill->data))
589 break;
590
591 if (!fill)
592 break;
593 }
594
595 while (slot != NULL) {
596 if (!slot->in_use && slot->curl != NULL
597 && curl_session_count > min_curl_sessions) {
598 curl_easy_cleanup(slot->curl);
599 slot->curl = NULL;
600 curl_session_count--;
601 }
602 slot = slot->next;
603 }
604 }
605
606 void step_active_slots(void)
607 {
608 int num_transfers;
609 CURLMcode curlm_result;
610
611 do {
612 curlm_result = curl_multi_perform(curlm, &num_transfers);
613 } while (curlm_result == CURLM_CALL_MULTI_PERFORM);
614 if (num_transfers < active_requests) {
615 process_curl_messages();
616 fill_active_slots();
617 }
618 }
619 #endif
620
621 void run_active_slot(struct active_request_slot *slot)
622 {
623 #ifdef USE_CURL_MULTI
624 fd_set readfds;
625 fd_set writefds;
626 fd_set excfds;
627 int max_fd;
628 struct timeval select_timeout;
629 int finished = 0;
630
631 slot->finished = &finished;
632 while (!finished) {
633 step_active_slots();
634
635 if (slot->in_use) {
636 #if LIBCURL_VERSION_NUM >= 0x070f04
637 long curl_timeout;
638 curl_multi_timeout(curlm, &curl_timeout);
639 if (curl_timeout == 0) {
640 continue;
641 } else if (curl_timeout == -1) {
642 select_timeout.tv_sec = 0;
643 select_timeout.tv_usec = 50000;
644 } else {
645 select_timeout.tv_sec = curl_timeout / 1000;
646 select_timeout.tv_usec = (curl_timeout % 1000) * 1000;
647 }
648 #else
649 select_timeout.tv_sec = 0;
650 select_timeout.tv_usec = 50000;
651 #endif
652
653 max_fd = -1;
654 FD_ZERO(&readfds);
655 FD_ZERO(&writefds);
656 FD_ZERO(&excfds);
657 curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd);
658
659 /*
660 * It can happen that curl_multi_timeout returns a pathologically
661 * long timeout when curl_multi_fdset returns no file descriptors
662 * to read. See commit message for more details.
663 */
664 if (max_fd < 0 &&
665 (select_timeout.tv_sec > 0 ||
666 select_timeout.tv_usec > 50000)) {
667 select_timeout.tv_sec = 0;
668 select_timeout.tv_usec = 50000;
669 }
670
671 select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout);
672 }
673 }
674 #else
675 while (slot->in_use) {
676 slot->curl_result = curl_easy_perform(slot->curl);
677 finish_active_slot(slot);
678 }
679 #endif
680 }
681
682 static void closedown_active_slot(struct active_request_slot *slot)
683 {
684 active_requests--;
685 slot->in_use = 0;
686 }
687
688 static void release_active_slot(struct active_request_slot *slot)
689 {
690 closedown_active_slot(slot);
691 if (slot->curl && curl_session_count > min_curl_sessions) {
692 #ifdef USE_CURL_MULTI
693 curl_multi_remove_handle(curlm, slot->curl);
694 #endif
695 curl_easy_cleanup(slot->curl);
696 slot->curl = NULL;
697 curl_session_count--;
698 }
699 #ifdef USE_CURL_MULTI
700 fill_active_slots();
701 #endif
702 }
703
704 void finish_active_slot(struct active_request_slot *slot)
705 {
706 closedown_active_slot(slot);
707 curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
708
709 if (slot->finished != NULL)
710 (*slot->finished) = 1;
711
712 /* Store slot results so they can be read after the slot is reused */
713 if (slot->results != NULL) {
714 slot->results->curl_result = slot->curl_result;
715 slot->results->http_code = slot->http_code;
716 }
717
718 /* Run callback if appropriate */
719 if (slot->callback_func != NULL)
720 slot->callback_func(slot->callback_data);
721 }
722
723 void finish_all_active_slots(void)
724 {
725 struct active_request_slot *slot = active_queue_head;
726
727 while (slot != NULL)
728 if (slot->in_use) {
729 run_active_slot(slot);
730 slot = active_queue_head;
731 } else {
732 slot = slot->next;
733 }
734 }
735
736 /* Helpers for modifying and creating URLs */
737 static inline int needs_quote(int ch)
738 {
739 if (((ch >= 'A') && (ch <= 'Z'))
740 || ((ch >= 'a') && (ch <= 'z'))
741 || ((ch >= '0') && (ch <= '9'))
742 || (ch == '/')
743 || (ch == '-')
744 || (ch == '.'))
745 return 0;
746 return 1;
747 }
748
749 static char *quote_ref_url(const char *base, const char *ref)
750 {
751 struct strbuf buf = STRBUF_INIT;
752 const char *cp;
753 int ch;
754
755 end_url_with_slash(&buf, base);
756
757 for (cp = ref; (ch = *cp) != 0; cp++)
758 if (needs_quote(ch))
759 strbuf_addf(&buf, "%%%02x", ch);
760 else
761 strbuf_addch(&buf, *cp);
762
763 return strbuf_detach(&buf, NULL);
764 }
765
766 void append_remote_object_url(struct strbuf *buf, const char *url,
767 const char *hex,
768 int only_two_digit_prefix)
769 {
770 end_url_with_slash(buf, url);
771
772 strbuf_addf(buf, "objects/%.*s/", 2, hex);
773 if (!only_two_digit_prefix)
774 strbuf_addf(buf, "%s", hex+2);
775 }
776
777 char *get_remote_object_url(const char *url, const char *hex,
778 int only_two_digit_prefix)
779 {
780 struct strbuf buf = STRBUF_INIT;
781 append_remote_object_url(&buf, url, hex, only_two_digit_prefix);
782 return strbuf_detach(&buf, NULL);
783 }
784
785 int handle_curl_result(struct slot_results *results)
786 {
787 /*
788 * If we see a failing http code with CURLE_OK, we have turned off
789 * FAILONERROR (to keep the server's custom error response), and should
790 * translate the code into failure here.
791 */
792 if (results->curl_result == CURLE_OK &&
793 results->http_code >= 400) {
794 results->curl_result = CURLE_HTTP_RETURNED_ERROR;
795 /*
796 * Normally curl will already have put the "reason phrase"
797 * from the server into curl_errorstr; unfortunately without
798 * FAILONERROR it is lost, so we can give only the numeric
799 * status code.
800 */
801 snprintf(curl_errorstr, sizeof(curl_errorstr),
802 "The requested URL returned error: %ld",
803 results->http_code);
804 }
805
806 if (results->curl_result == CURLE_OK) {
807 credential_approve(&http_auth);
808 return HTTP_OK;
809 } else if (missing_target(results))
810 return HTTP_MISSING_TARGET;
811 else if (results->http_code == 401) {
812 if (http_auth.username && http_auth.password) {
813 credential_reject(&http_auth);
814 return HTTP_NOAUTH;
815 } else {
816 credential_fill(&http_auth);
817 return HTTP_REAUTH;
818 }
819 } else {
820 #if LIBCURL_VERSION_NUM >= 0x070c00
821 if (!curl_errorstr[0])
822 strlcpy(curl_errorstr,
823 curl_easy_strerror(results->curl_result),
824 sizeof(curl_errorstr));
825 #endif
826 return HTTP_ERROR;
827 }
828 }
829
830 /* http_request() targets */
831 #define HTTP_REQUEST_STRBUF 0
832 #define HTTP_REQUEST_FILE 1
833
834 static int http_request(const char *url, struct strbuf *type,
835 void *result, int target, int options)
836 {
837 struct active_request_slot *slot;
838 struct slot_results results;
839 struct curl_slist *headers = NULL;
840 struct strbuf buf = STRBUF_INIT;
841 int ret;
842
843 slot = get_active_slot();
844 slot->results = &results;
845 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
846
847 if (result == NULL) {
848 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
849 } else {
850 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
851 curl_easy_setopt(slot->curl, CURLOPT_FILE, result);
852
853 if (target == HTTP_REQUEST_FILE) {
854 long posn = ftell(result);
855 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
856 fwrite);
857 if (posn > 0) {
858 strbuf_addf(&buf, "Range: bytes=%ld-", posn);
859 headers = curl_slist_append(headers, buf.buf);
860 strbuf_reset(&buf);
861 }
862 } else
863 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
864 fwrite_buffer);
865 }
866
867 strbuf_addstr(&buf, "Pragma:");
868 if (options & HTTP_NO_CACHE)
869 strbuf_addstr(&buf, " no-cache");
870 if (options & HTTP_KEEP_ERROR)
871 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
872
873 headers = curl_slist_append(headers, buf.buf);
874
875 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
876 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
877 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
878
879 if (start_active_slot(slot)) {
880 run_active_slot(slot);
881 ret = handle_curl_result(&results);
882 } else {
883 snprintf(curl_errorstr, sizeof(curl_errorstr),
884 "failed to start HTTP request");
885 ret = HTTP_START_FAILED;
886 }
887
888 if (type) {
889 char *t;
890 strbuf_reset(type);
891 curl_easy_getinfo(slot->curl, CURLINFO_CONTENT_TYPE, &t);
892 if (t)
893 strbuf_addstr(type, t);
894 }
895
896 curl_slist_free_all(headers);
897 strbuf_release(&buf);
898
899 return ret;
900 }
901
902 static int http_request_reauth(const char *url,
903 struct strbuf *type,
904 void *result, int target,
905 int options)
906 {
907 int ret = http_request(url, type, result, target, options);
908 if (ret != HTTP_REAUTH)
909 return ret;
910
911 /*
912 * If we are using KEEP_ERROR, the previous request may have
913 * put cruft into our output stream; we should clear it out before
914 * making our next request. We only know how to do this for
915 * the strbuf case, but that is enough to satisfy current callers.
916 */
917 if (options & HTTP_KEEP_ERROR) {
918 switch (target) {
919 case HTTP_REQUEST_STRBUF:
920 strbuf_reset(result);
921 break;
922 default:
923 die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
924 }
925 }
926 return http_request(url, type, result, target, options);
927 }
928
929 int http_get_strbuf(const char *url,
930 struct strbuf *type,
931 struct strbuf *result, int options)
932 {
933 return http_request_reauth(url, type, result,
934 HTTP_REQUEST_STRBUF, options);
935 }
936
937 /*
938 * Downloads a URL and stores the result in the given file.
939 *
940 * If a previous interrupted download is detected (i.e. a previous temporary
941 * file is still around) the download is resumed.
942 */
943 static int http_get_file(const char *url, const char *filename, int options)
944 {
945 int ret;
946 struct strbuf tmpfile = STRBUF_INIT;
947 FILE *result;
948
949 strbuf_addf(&tmpfile, "%s.temp", filename);
950 result = fopen(tmpfile.buf, "a");
951 if (! result) {
952 error("Unable to open local file %s", tmpfile.buf);
953 ret = HTTP_ERROR;
954 goto cleanup;
955 }
956
957 ret = http_request_reauth(url, NULL, result, HTTP_REQUEST_FILE, options);
958 fclose(result);
959
960 if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename))
961 ret = HTTP_ERROR;
962 cleanup:
963 strbuf_release(&tmpfile);
964 return ret;
965 }
966
967 int http_fetch_ref(const char *base, struct ref *ref)
968 {
969 char *url;
970 struct strbuf buffer = STRBUF_INIT;
971 int ret = -1;
972
973 url = quote_ref_url(base, ref->name);
974 if (http_get_strbuf(url, NULL, &buffer, HTTP_NO_CACHE) == HTTP_OK) {
975 strbuf_rtrim(&buffer);
976 if (buffer.len == 40)
977 ret = get_sha1_hex(buffer.buf, ref->old_sha1);
978 else if (!prefixcmp(buffer.buf, "ref: ")) {
979 ref->symref = xstrdup(buffer.buf + 5);
980 ret = 0;
981 }
982 }
983
984 strbuf_release(&buffer);
985 free(url);
986 return ret;
987 }
988
989 /* Helpers for fetching packs */
990 static char *fetch_pack_index(unsigned char *sha1, const char *base_url)
991 {
992 char *url, *tmp;
993 struct strbuf buf = STRBUF_INIT;
994
995 if (http_is_verbose)
996 fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1));
997
998 end_url_with_slash(&buf, base_url);
999 strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1));
1000 url = strbuf_detach(&buf, NULL);
1001
1002 strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1));
1003 tmp = strbuf_detach(&buf, NULL);
1004
1005 if (http_get_file(url, tmp, 0) != HTTP_OK) {
1006 error("Unable to get pack index %s", url);
1007 free(tmp);
1008 tmp = NULL;
1009 }
1010
1011 free(url);
1012 return tmp;
1013 }
1014
1015 static int fetch_and_setup_pack_index(struct packed_git **packs_head,
1016 unsigned char *sha1, const char *base_url)
1017 {
1018 struct packed_git *new_pack;
1019 char *tmp_idx = NULL;
1020 int ret;
1021
1022 if (has_pack_index(sha1)) {
1023 new_pack = parse_pack_index(sha1, NULL);
1024 if (!new_pack)
1025 return -1; /* parse_pack_index() already issued error message */
1026 goto add_pack;
1027 }
1028
1029 tmp_idx = fetch_pack_index(sha1, base_url);
1030 if (!tmp_idx)
1031 return -1;
1032
1033 new_pack = parse_pack_index(sha1, tmp_idx);
1034 if (!new_pack) {
1035 unlink(tmp_idx);
1036 free(tmp_idx);
1037
1038 return -1; /* parse_pack_index() already issued error message */
1039 }
1040
1041 ret = verify_pack_index(new_pack);
1042 if (!ret) {
1043 close_pack_index(new_pack);
1044 ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1));
1045 }
1046 free(tmp_idx);
1047 if (ret)
1048 return -1;
1049
1050 add_pack:
1051 new_pack->next = *packs_head;
1052 *packs_head = new_pack;
1053 return 0;
1054 }
1055
1056 int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
1057 {
1058 int ret = 0, i = 0;
1059 char *url, *data;
1060 struct strbuf buf = STRBUF_INIT;
1061 unsigned char sha1[20];
1062
1063 end_url_with_slash(&buf, base_url);
1064 strbuf_addstr(&buf, "objects/info/packs");
1065 url = strbuf_detach(&buf, NULL);
1066
1067 ret = http_get_strbuf(url, NULL, &buf, HTTP_NO_CACHE);
1068 if (ret != HTTP_OK)
1069 goto cleanup;
1070
1071 data = buf.buf;
1072 while (i < buf.len) {
1073 switch (data[i]) {
1074 case 'P':
1075 i++;
1076 if (i + 52 <= buf.len &&
1077 !prefixcmp(data + i, " pack-") &&
1078 !prefixcmp(data + i + 46, ".pack\n")) {
1079 get_sha1_hex(data + i + 6, sha1);
1080 fetch_and_setup_pack_index(packs_head, sha1,
1081 base_url);
1082 i += 51;
1083 break;
1084 }
1085 default:
1086 while (i < buf.len && data[i] != '\n')
1087 i++;
1088 }
1089 i++;
1090 }
1091
1092 cleanup:
1093 free(url);
1094 return ret;
1095 }
1096
1097 void release_http_pack_request(struct http_pack_request *preq)
1098 {
1099 if (preq->packfile != NULL) {
1100 fclose(preq->packfile);
1101 preq->packfile = NULL;
1102 }
1103 if (preq->range_header != NULL) {
1104 curl_slist_free_all(preq->range_header);
1105 preq->range_header = NULL;
1106 }
1107 preq->slot = NULL;
1108 free(preq->url);
1109 }
1110
1111 int finish_http_pack_request(struct http_pack_request *preq)
1112 {
1113 struct packed_git **lst;
1114 struct packed_git *p = preq->target;
1115 char *tmp_idx;
1116 struct child_process ip;
1117 const char *ip_argv[8];
1118
1119 close_pack_index(p);
1120
1121 fclose(preq->packfile);
1122 preq->packfile = NULL;
1123
1124 lst = preq->lst;
1125 while (*lst != p)
1126 lst = &((*lst)->next);
1127 *lst = (*lst)->next;
1128
1129 tmp_idx = xstrdup(preq->tmpfile);
1130 strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"),
1131 ".idx.temp");
1132
1133 ip_argv[0] = "index-pack";
1134 ip_argv[1] = "-o";
1135 ip_argv[2] = tmp_idx;
1136 ip_argv[3] = preq->tmpfile;
1137 ip_argv[4] = NULL;
1138
1139 memset(&ip, 0, sizeof(ip));
1140 ip.argv = ip_argv;
1141 ip.git_cmd = 1;
1142 ip.no_stdin = 1;
1143 ip.no_stdout = 1;
1144
1145 if (run_command(&ip)) {
1146 unlink(preq->tmpfile);
1147 unlink(tmp_idx);
1148 free(tmp_idx);
1149 return -1;
1150 }
1151
1152 unlink(sha1_pack_index_name(p->sha1));
1153
1154 if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1))
1155 || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) {
1156 free(tmp_idx);
1157 return -1;
1158 }
1159
1160 install_packed_git(p);
1161 free(tmp_idx);
1162 return 0;
1163 }
1164
1165 struct http_pack_request *new_http_pack_request(
1166 struct packed_git *target, const char *base_url)
1167 {
1168 long prev_posn = 0;
1169 char range[RANGE_HEADER_SIZE];
1170 struct strbuf buf = STRBUF_INIT;
1171 struct http_pack_request *preq;
1172
1173 preq = xcalloc(1, sizeof(*preq));
1174 preq->target = target;
1175
1176 end_url_with_slash(&buf, base_url);
1177 strbuf_addf(&buf, "objects/pack/pack-%s.pack",
1178 sha1_to_hex(target->sha1));
1179 preq->url = strbuf_detach(&buf, NULL);
1180
1181 snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp",
1182 sha1_pack_name(target->sha1));
1183 preq->packfile = fopen(preq->tmpfile, "a");
1184 if (!preq->packfile) {
1185 error("Unable to open local file %s for pack",
1186 preq->tmpfile);
1187 goto abort;
1188 }
1189
1190 preq->slot = get_active_slot();
1191 curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile);
1192 curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
1193 curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url);
1194 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1195 no_pragma_header);
1196
1197 /*
1198 * If there is data present from a previous transfer attempt,
1199 * resume where it left off
1200 */
1201 prev_posn = ftell(preq->packfile);
1202 if (prev_posn>0) {
1203 if (http_is_verbose)
1204 fprintf(stderr,
1205 "Resuming fetch of pack %s at byte %ld\n",
1206 sha1_to_hex(target->sha1), prev_posn);
1207 sprintf(range, "Range: bytes=%ld-", prev_posn);
1208 preq->range_header = curl_slist_append(NULL, range);
1209 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1210 preq->range_header);
1211 }
1212
1213 return preq;
1214
1215 abort:
1216 free(preq->url);
1217 free(preq);
1218 return NULL;
1219 }
1220
1221 /* Helpers for fetching objects (loose) */
1222 static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb,
1223 void *data)
1224 {
1225 unsigned char expn[4096];
1226 size_t size = eltsize * nmemb;
1227 int posn = 0;
1228 struct http_object_request *freq =
1229 (struct http_object_request *)data;
1230 do {
1231 ssize_t retval = xwrite(freq->localfile,
1232 (char *) ptr + posn, size - posn);
1233 if (retval < 0)
1234 return posn;
1235 posn += retval;
1236 } while (posn < size);
1237
1238 freq->stream.avail_in = size;
1239 freq->stream.next_in = (void *)ptr;
1240 do {
1241 freq->stream.next_out = expn;
1242 freq->stream.avail_out = sizeof(expn);
1243 freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH);
1244 git_SHA1_Update(&freq->c, expn,
1245 sizeof(expn) - freq->stream.avail_out);
1246 } while (freq->stream.avail_in && freq->zret == Z_OK);
1247 return size;
1248 }
1249
1250 struct http_object_request *new_http_object_request(const char *base_url,
1251 unsigned char *sha1)
1252 {
1253 char *hex = sha1_to_hex(sha1);
1254 char *filename;
1255 char prevfile[PATH_MAX];
1256 int prevlocal;
1257 char prev_buf[PREV_BUF_SIZE];
1258 ssize_t prev_read = 0;
1259 long prev_posn = 0;
1260 char range[RANGE_HEADER_SIZE];
1261 struct curl_slist *range_header = NULL;
1262 struct http_object_request *freq;
1263
1264 freq = xcalloc(1, sizeof(*freq));
1265 hashcpy(freq->sha1, sha1);
1266 freq->localfile = -1;
1267
1268 filename = sha1_file_name(sha1);
1269 snprintf(freq->tmpfile, sizeof(freq->tmpfile),
1270 "%s.temp", filename);
1271
1272 snprintf(prevfile, sizeof(prevfile), "%s.prev", filename);
1273 unlink_or_warn(prevfile);
1274 rename(freq->tmpfile, prevfile);
1275 unlink_or_warn(freq->tmpfile);
1276
1277 if (freq->localfile != -1)
1278 error("fd leakage in start: %d", freq->localfile);
1279 freq->localfile = open(freq->tmpfile,
1280 O_WRONLY | O_CREAT | O_EXCL, 0666);
1281 /*
1282 * This could have failed due to the "lazy directory creation";
1283 * try to mkdir the last path component.
1284 */
1285 if (freq->localfile < 0 && errno == ENOENT) {
1286 char *dir = strrchr(freq->tmpfile, '/');
1287 if (dir) {
1288 *dir = 0;
1289 mkdir(freq->tmpfile, 0777);
1290 *dir = '/';
1291 }
1292 freq->localfile = open(freq->tmpfile,
1293 O_WRONLY | O_CREAT | O_EXCL, 0666);
1294 }
1295
1296 if (freq->localfile < 0) {
1297 error("Couldn't create temporary file %s: %s",
1298 freq->tmpfile, strerror(errno));
1299 goto abort;
1300 }
1301
1302 git_inflate_init(&freq->stream);
1303
1304 git_SHA1_Init(&freq->c);
1305
1306 freq->url = get_remote_object_url(base_url, hex, 0);
1307
1308 /*
1309 * If a previous temp file is present, process what was already
1310 * fetched.
1311 */
1312 prevlocal = open(prevfile, O_RDONLY);
1313 if (prevlocal != -1) {
1314 do {
1315 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
1316 if (prev_read>0) {
1317 if (fwrite_sha1_file(prev_buf,
1318 1,
1319 prev_read,
1320 freq) == prev_read) {
1321 prev_posn += prev_read;
1322 } else {
1323 prev_read = -1;
1324 }
1325 }
1326 } while (prev_read > 0);
1327 close(prevlocal);
1328 }
1329 unlink_or_warn(prevfile);
1330
1331 /*
1332 * Reset inflate/SHA1 if there was an error reading the previous temp
1333 * file; also rewind to the beginning of the local file.
1334 */
1335 if (prev_read == -1) {
1336 memset(&freq->stream, 0, sizeof(freq->stream));
1337 git_inflate_init(&freq->stream);
1338 git_SHA1_Init(&freq->c);
1339 if (prev_posn>0) {
1340 prev_posn = 0;
1341 lseek(freq->localfile, 0, SEEK_SET);
1342 if (ftruncate(freq->localfile, 0) < 0) {
1343 error("Couldn't truncate temporary file %s: %s",
1344 freq->tmpfile, strerror(errno));
1345 goto abort;
1346 }
1347 }
1348 }
1349
1350 freq->slot = get_active_slot();
1351
1352 curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
1353 curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
1354 curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);
1355 curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url);
1356 curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
1357
1358 /*
1359 * If we have successfully processed data from a previous fetch
1360 * attempt, only fetch the data we don't already have.
1361 */
1362 if (prev_posn>0) {
1363 if (http_is_verbose)
1364 fprintf(stderr,
1365 "Resuming fetch of object %s at byte %ld\n",
1366 hex, prev_posn);
1367 sprintf(range, "Range: bytes=%ld-", prev_posn);
1368 range_header = curl_slist_append(range_header, range);
1369 curl_easy_setopt(freq->slot->curl,
1370 CURLOPT_HTTPHEADER, range_header);
1371 }
1372
1373 return freq;
1374
1375 abort:
1376 free(freq->url);
1377 free(freq);
1378 return NULL;
1379 }
1380
1381 void process_http_object_request(struct http_object_request *freq)
1382 {
1383 if (freq->slot == NULL)
1384 return;
1385 freq->curl_result = freq->slot->curl_result;
1386 freq->http_code = freq->slot->http_code;
1387 freq->slot = NULL;
1388 }
1389
1390 int finish_http_object_request(struct http_object_request *freq)
1391 {
1392 struct stat st;
1393
1394 close(freq->localfile);
1395 freq->localfile = -1;
1396
1397 process_http_object_request(freq);
1398
1399 if (freq->http_code == 416) {
1400 warning("requested range invalid; we may already have all the data.");
1401 } else if (freq->curl_result != CURLE_OK) {
1402 if (stat(freq->tmpfile, &st) == 0)
1403 if (st.st_size == 0)
1404 unlink_or_warn(freq->tmpfile);
1405 return -1;
1406 }
1407
1408 git_inflate_end(&freq->stream);
1409 git_SHA1_Final(freq->real_sha1, &freq->c);
1410 if (freq->zret != Z_STREAM_END) {
1411 unlink_or_warn(freq->tmpfile);
1412 return -1;
1413 }
1414 if (hashcmp(freq->sha1, freq->real_sha1)) {
1415 unlink_or_warn(freq->tmpfile);
1416 return -1;
1417 }
1418 freq->rename =
1419 move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1));
1420
1421 return freq->rename;
1422 }
1423
1424 void abort_http_object_request(struct http_object_request *freq)
1425 {
1426 unlink_or_warn(freq->tmpfile);
1427
1428 release_http_object_request(freq);
1429 }
1430
1431 void release_http_object_request(struct http_object_request *freq)
1432 {
1433 if (freq->localfile != -1) {
1434 close(freq->localfile);
1435 freq->localfile = -1;
1436 }
1437 if (freq->url != NULL) {
1438 free(freq->url);
1439 freq->url = NULL;
1440 }
1441 if (freq->slot != NULL) {
1442 freq->slot->callback_func = NULL;
1443 freq->slot->callback_data = NULL;
1444 release_active_slot(freq->slot);
1445 freq->slot = NULL;
1446 }
1447 }
ramsay's fork of git