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config: parse http.<url>.<variable> using urlmatch
[git/jrn.git] / http.c
blob5eda356fd93c77bf7f8fe41e9151f9e2031773db
1 #include "http.h"
2 #include "pack.h"
3 #include "sideband.h"
4 #include "run-command.h"
5 #include "url.h"
6 #include "urlmatch.h"
7 #include "credential.h"
8 #include "version.h"
9 #include "pkt-line.h"
10
11 int active_requests;
12 int http_is_verbose;
13 size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
14
15 #if LIBCURL_VERSION_NUM >= 0x070a06
16 #define LIBCURL_CAN_HANDLE_AUTH_ANY
17 #endif
18
19 static int min_curl_sessions = 1;
20 static int curl_session_count;
21 #ifdef USE_CURL_MULTI
22 static int max_requests = -1;
23 static CURLM *curlm;
24 #endif
25 #ifndef NO_CURL_EASY_DUPHANDLE
26 static CURL *curl_default;
27 #endif
28
29 #define PREV_BUF_SIZE 4096
30 #define RANGE_HEADER_SIZE 30
31
32 char curl_errorstr[CURL_ERROR_SIZE];
33
34 static int curl_ssl_verify = -1;
35 static int curl_ssl_try;
36 static const char *ssl_cert;
37 #if LIBCURL_VERSION_NUM >= 0x070903
38 static const char *ssl_key;
39 #endif
40 #if LIBCURL_VERSION_NUM >= 0x070908
41 static const char *ssl_capath;
42 #endif
43 static const char *ssl_cainfo;
44 static long curl_low_speed_limit = -1;
45 static long curl_low_speed_time = -1;
46 static int curl_ftp_no_epsv;
47 static const char *curl_http_proxy;
48 static const char *curl_cookie_file;
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 ssl_cert_password_required = git_config_bool(var, value);
165 return 0;
166 }
167 if (!strcmp("http.ssltry", var)) {
168 curl_ssl_try = git_config_bool(var, value);
169 return 0;
170 }
171 if (!strcmp("http.minsessions", var)) {
172 min_curl_sessions = git_config_int(var, value);
173 #ifndef USE_CURL_MULTI
174 if (min_curl_sessions > 1)
175 min_curl_sessions = 1;
176 #endif
177 return 0;
178 }
179 #ifdef USE_CURL_MULTI
180 if (!strcmp("http.maxrequests", var)) {
181 max_requests = git_config_int(var, value);
182 return 0;
183 }
184 #endif
185 if (!strcmp("http.lowspeedlimit", var)) {
186 curl_low_speed_limit = (long)git_config_int(var, value);
187 return 0;
188 }
189 if (!strcmp("http.lowspeedtime", var)) {
190 curl_low_speed_time = (long)git_config_int(var, value);
191 return 0;
192 }
193
194 if (!strcmp("http.noepsv", var)) {
195 curl_ftp_no_epsv = git_config_bool(var, value);
196 return 0;
197 }
198 if (!strcmp("http.proxy", var))
199 return git_config_string(&curl_http_proxy, var, value);
200
201 if (!strcmp("http.cookiefile", var))
202 return git_config_string(&curl_cookie_file, var, value);
203
204 if (!strcmp("http.postbuffer", var)) {
205 http_post_buffer = git_config_int(var, value);
206 if (http_post_buffer < LARGE_PACKET_MAX)
207 http_post_buffer = LARGE_PACKET_MAX;
208 return 0;
209 }
210
211 if (!strcmp("http.useragent", var))
212 return git_config_string(&user_agent, var, value);
213
214 /* Fall back on the default ones */
215 return git_default_config(var, value, cb);
216 }
217
218 static void init_curl_http_auth(CURL *result)
219 {
220 if (!http_auth.username)
221 return;
222
223 credential_fill(&http_auth);
224
225 #if LIBCURL_VERSION_NUM >= 0x071301
226 curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username);
227 curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password);
228 #else
229 {
230 static struct strbuf up = STRBUF_INIT;
231 strbuf_reset(&up);
232 strbuf_addf(&up, "%s:%s",
233 http_auth.username, http_auth.password);
234 curl_easy_setopt(result, CURLOPT_USERPWD, up.buf);
235 }
236 #endif
237 }
238
239 static int has_cert_password(void)
240 {
241 if (ssl_cert == NULL || ssl_cert_password_required != 1)
242 return 0;
243 if (!cert_auth.password) {
244 cert_auth.protocol = xstrdup("cert");
245 cert_auth.username = xstrdup("");
246 cert_auth.path = xstrdup(ssl_cert);
247 credential_fill(&cert_auth);
248 }
249 return 1;
250 }
251
252 static CURL *get_curl_handle(void)
253 {
254 CURL *result = curl_easy_init();
255
256 if (!curl_ssl_verify) {
257 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0);
258 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0);
259 } else {
260 /* Verify authenticity of the peer's certificate */
261 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1);
262 /* The name in the cert must match whom we tried to connect */
263 curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
264 }
265
266 #if LIBCURL_VERSION_NUM >= 0x070907
267 curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
268 #endif
269 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
270 curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
271 #endif
272
273 if (http_proactive_auth)
274 init_curl_http_auth(result);
275
276 if (ssl_cert != NULL)
277 curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
278 if (has_cert_password())
279 curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password);
280 #if LIBCURL_VERSION_NUM >= 0x070903
281 if (ssl_key != NULL)
282 curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
283 #endif
284 #if LIBCURL_VERSION_NUM >= 0x070908
285 if (ssl_capath != NULL)
286 curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
287 #endif
288 if (ssl_cainfo != NULL)
289 curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
290
291 if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
292 curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
293 curl_low_speed_limit);
294 curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME,
295 curl_low_speed_time);
296 }
297
298 curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1);
299 #if LIBCURL_VERSION_NUM >= 0x071301
300 curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
301 #elif LIBCURL_VERSION_NUM >= 0x071101
302 curl_easy_setopt(result, CURLOPT_POST301, 1);
303 #endif
304
305 if (getenv("GIT_CURL_VERBOSE"))
306 curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
307
308 curl_easy_setopt(result, CURLOPT_USERAGENT,
309 user_agent ? user_agent : git_user_agent());
310
311 if (curl_ftp_no_epsv)
312 curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
313
314 #ifdef CURLOPT_USE_SSL
315 if (curl_ssl_try)
316 curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
317 #endif
318
319 if (curl_http_proxy) {
320 curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
321 curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
322 }
323
324 return result;
325 }
326
327 static void set_from_env(const char **var, const char *envname)
328 {
329 const char *val = getenv(envname);
330 if (val)
331 *var = val;
332 }
333
334 void http_init(struct remote *remote, const char *url, int proactive_auth)
335 {
336 char *low_speed_limit;
337 char *low_speed_time;
338 char *normalized_url;
339 struct urlmatch_config config = { STRING_LIST_INIT_DUP };
340
341 config.section = "http";
342 config.key = NULL;
343 config.collect_fn = http_options;
344 config.cascade_fn = git_default_config;
345 config.cb = NULL;
346
347 http_is_verbose = 0;
348 normalized_url = url_normalize(url, &config.url);
349
350 git_config(urlmatch_config_entry, &config);
351 free(normalized_url);
352
353 curl_global_init(CURL_GLOBAL_ALL);
354
355 http_proactive_auth = proactive_auth;
356
357 if (remote && remote->http_proxy)
358 curl_http_proxy = xstrdup(remote->http_proxy);
359
360 pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache");
361 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
362
363 #ifdef USE_CURL_MULTI
364 {
365 char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
366 if (http_max_requests != NULL)
367 max_requests = atoi(http_max_requests);
368 }
369
370 curlm = curl_multi_init();
371 if (curlm == NULL) {
372 fprintf(stderr, "Error creating curl multi handle.\n");
373 exit(1);
374 }
375 #endif
376
377 if (getenv("GIT_SSL_NO_VERIFY"))
378 curl_ssl_verify = 0;
379
380 set_from_env(&ssl_cert, "GIT_SSL_CERT");
381 #if LIBCURL_VERSION_NUM >= 0x070903
382 set_from_env(&ssl_key, "GIT_SSL_KEY");
383 #endif
384 #if LIBCURL_VERSION_NUM >= 0x070908
385 set_from_env(&ssl_capath, "GIT_SSL_CAPATH");
386 #endif
387 set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO");
388
389 set_from_env(&user_agent, "GIT_HTTP_USER_AGENT");
390
391 low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
392 if (low_speed_limit != NULL)
393 curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
394 low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME");
395 if (low_speed_time != NULL)
396 curl_low_speed_time = strtol(low_speed_time, NULL, 10);
397
398 if (curl_ssl_verify == -1)
399 curl_ssl_verify = 1;
400
401 curl_session_count = 0;
402 #ifdef USE_CURL_MULTI
403 if (max_requests < 1)
404 max_requests = DEFAULT_MAX_REQUESTS;
405 #endif
406
407 if (getenv("GIT_CURL_FTP_NO_EPSV"))
408 curl_ftp_no_epsv = 1;
409
410 if (url) {
411 credential_from_url(&http_auth, url);
412 if (!ssl_cert_password_required &&
413 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
414 !prefixcmp(url, "https://"))
415 ssl_cert_password_required = 1;
416 }
417
418 #ifndef NO_CURL_EASY_DUPHANDLE
419 curl_default = get_curl_handle();
420 #endif
421 }
422
423 void http_cleanup(void)
424 {
425 struct active_request_slot *slot = active_queue_head;
426
427 while (slot != NULL) {
428 struct active_request_slot *next = slot->next;
429 if (slot->curl != NULL) {
430 #ifdef USE_CURL_MULTI
431 curl_multi_remove_handle(curlm, slot->curl);
432 #endif
433 curl_easy_cleanup(slot->curl);
434 }
435 free(slot);
436 slot = next;
437 }
438 active_queue_head = NULL;
439
440 #ifndef NO_CURL_EASY_DUPHANDLE
441 curl_easy_cleanup(curl_default);
442 #endif
443
444 #ifdef USE_CURL_MULTI
445 curl_multi_cleanup(curlm);
446 #endif
447 curl_global_cleanup();
448
449 curl_slist_free_all(pragma_header);
450 pragma_header = NULL;
451
452 curl_slist_free_all(no_pragma_header);
453 no_pragma_header = NULL;
454
455 if (curl_http_proxy) {
456 free((void *)curl_http_proxy);
457 curl_http_proxy = NULL;
458 }
459
460 if (cert_auth.password != NULL) {
461 memset(cert_auth.password, 0, strlen(cert_auth.password));
462 free(cert_auth.password);
463 cert_auth.password = NULL;
464 }
465 ssl_cert_password_required = 0;
466 }
467
468 struct active_request_slot *get_active_slot(void)
469 {
470 struct active_request_slot *slot = active_queue_head;
471 struct active_request_slot *newslot;
472
473 #ifdef USE_CURL_MULTI
474 int num_transfers;
475
476 /* Wait for a slot to open up if the queue is full */
477 while (active_requests >= max_requests) {
478 curl_multi_perform(curlm, &num_transfers);
479 if (num_transfers < active_requests)
480 process_curl_messages();
481 }
482 #endif
483
484 while (slot != NULL && slot->in_use)
485 slot = slot->next;
486
487 if (slot == NULL) {
488 newslot = xmalloc(sizeof(*newslot));
489 newslot->curl = NULL;
490 newslot->in_use = 0;
491 newslot->next = NULL;
492
493 slot = active_queue_head;
494 if (slot == NULL) {
495 active_queue_head = newslot;
496 } else {
497 while (slot->next != NULL)
498 slot = slot->next;
499 slot->next = newslot;
500 }
501 slot = newslot;
502 }
503
504 if (slot->curl == NULL) {
505 #ifdef NO_CURL_EASY_DUPHANDLE
506 slot->curl = get_curl_handle();
507 #else
508 slot->curl = curl_easy_duphandle(curl_default);
509 #endif
510 curl_session_count++;
511 }
512
513 active_requests++;
514 slot->in_use = 1;
515 slot->results = NULL;
516 slot->finished = NULL;
517 slot->callback_data = NULL;
518 slot->callback_func = NULL;
519 curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file);
520 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
521 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
522 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
523 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL);
524 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL);
525 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL);
526 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0);
527 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
528 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
529 if (http_auth.password)
530 init_curl_http_auth(slot->curl);
531
532 return slot;
533 }
534
535 int start_active_slot(struct active_request_slot *slot)
536 {
537 #ifdef USE_CURL_MULTI
538 CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
539 int num_transfers;
540
541 if (curlm_result != CURLM_OK &&
542 curlm_result != CURLM_CALL_MULTI_PERFORM) {
543 active_requests--;
544 slot->in_use = 0;
545 return 0;
546 }
547
548 /*
549 * We know there must be something to do, since we just added
550 * something.
551 */
552 curl_multi_perform(curlm, &num_transfers);
553 #endif
554 return 1;
555 }
556
557 #ifdef USE_CURL_MULTI
558 struct fill_chain {
559 void *data;
560 int (*fill)(void *);
561 struct fill_chain *next;
562 };
563
564 static struct fill_chain *fill_cfg;
565
566 void add_fill_function(void *data, int (*fill)(void *))
567 {
568 struct fill_chain *new = xmalloc(sizeof(*new));
569 struct fill_chain **linkp = &fill_cfg;
570 new->data = data;
571 new->fill = fill;
572 new->next = NULL;
573 while (*linkp)
574 linkp = &(*linkp)->next;
575 *linkp = new;
576 }
577
578 void fill_active_slots(void)
579 {
580 struct active_request_slot *slot = active_queue_head;
581
582 while (active_requests < max_requests) {
583 struct fill_chain *fill;
584 for (fill = fill_cfg; fill; fill = fill->next)
585 if (fill->fill(fill->data))
586 break;
587
588 if (!fill)
589 break;
590 }
591
592 while (slot != NULL) {
593 if (!slot->in_use && slot->curl != NULL
594 && curl_session_count > min_curl_sessions) {
595 curl_easy_cleanup(slot->curl);
596 slot->curl = NULL;
597 curl_session_count--;
598 }
599 slot = slot->next;
600 }
601 }
602
603 void step_active_slots(void)
604 {
605 int num_transfers;
606 CURLMcode curlm_result;
607
608 do {
609 curlm_result = curl_multi_perform(curlm, &num_transfers);
610 } while (curlm_result == CURLM_CALL_MULTI_PERFORM);
611 if (num_transfers < active_requests) {
612 process_curl_messages();
613 fill_active_slots();
614 }
615 }
616 #endif
617
618 void run_active_slot(struct active_request_slot *slot)
619 {
620 #ifdef USE_CURL_MULTI
621 fd_set readfds;
622 fd_set writefds;
623 fd_set excfds;
624 int max_fd;
625 struct timeval select_timeout;
626 int finished = 0;
627
628 slot->finished = &finished;
629 while (!finished) {
630 step_active_slots();
631
632 if (slot->in_use) {
633 #if LIBCURL_VERSION_NUM >= 0x070f04
634 long curl_timeout;
635 curl_multi_timeout(curlm, &curl_timeout);
636 if (curl_timeout == 0) {
637 continue;
638 } else if (curl_timeout == -1) {
639 select_timeout.tv_sec = 0;
640 select_timeout.tv_usec = 50000;
641 } else {
642 select_timeout.tv_sec = curl_timeout / 1000;
643 select_timeout.tv_usec = (curl_timeout % 1000) * 1000;
644 }
645 #else
646 select_timeout.tv_sec = 0;
647 select_timeout.tv_usec = 50000;
648 #endif
649
650 max_fd = -1;
651 FD_ZERO(&readfds);
652 FD_ZERO(&writefds);
653 FD_ZERO(&excfds);
654 curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd);
655
656 /*
657 * It can happen that curl_multi_timeout returns a pathologically
658 * long timeout when curl_multi_fdset returns no file descriptors
659 * to read. See commit message for more details.
660 */
661 if (max_fd < 0 &&
662 (select_timeout.tv_sec > 0 ||
663 select_timeout.tv_usec > 50000)) {
664 select_timeout.tv_sec = 0;
665 select_timeout.tv_usec = 50000;
666 }
667
668 select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout);
669 }
670 }
671 #else
672 while (slot->in_use) {
673 slot->curl_result = curl_easy_perform(slot->curl);
674 finish_active_slot(slot);
675 }
676 #endif
677 }
678
679 static void closedown_active_slot(struct active_request_slot *slot)
680 {
681 active_requests--;
682 slot->in_use = 0;
683 }
684
685 static void release_active_slot(struct active_request_slot *slot)
686 {
687 closedown_active_slot(slot);
688 if (slot->curl && curl_session_count > min_curl_sessions) {
689 #ifdef USE_CURL_MULTI
690 curl_multi_remove_handle(curlm, slot->curl);
691 #endif
692 curl_easy_cleanup(slot->curl);
693 slot->curl = NULL;
694 curl_session_count--;
695 }
696 #ifdef USE_CURL_MULTI
697 fill_active_slots();
698 #endif
699 }
700
701 void finish_active_slot(struct active_request_slot *slot)
702 {
703 closedown_active_slot(slot);
704 curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
705
706 if (slot->finished != NULL)
707 (*slot->finished) = 1;
708
709 /* Store slot results so they can be read after the slot is reused */
710 if (slot->results != NULL) {
711 slot->results->curl_result = slot->curl_result;
712 slot->results->http_code = slot->http_code;
713 }
714
715 /* Run callback if appropriate */
716 if (slot->callback_func != NULL)
717 slot->callback_func(slot->callback_data);
718 }
719
720 void finish_all_active_slots(void)
721 {
722 struct active_request_slot *slot = active_queue_head;
723
724 while (slot != NULL)
725 if (slot->in_use) {
726 run_active_slot(slot);
727 slot = active_queue_head;
728 } else {
729 slot = slot->next;
730 }
731 }
732
733 /* Helpers for modifying and creating URLs */
734 static inline int needs_quote(int ch)
735 {
736 if (((ch >= 'A') && (ch <= 'Z'))
737 || ((ch >= 'a') && (ch <= 'z'))
738 || ((ch >= '0') && (ch <= '9'))
739 || (ch == '/')
740 || (ch == '-')
741 || (ch == '.'))
742 return 0;
743 return 1;
744 }
745
746 static char *quote_ref_url(const char *base, const char *ref)
747 {
748 struct strbuf buf = STRBUF_INIT;
749 const char *cp;
750 int ch;
751
752 end_url_with_slash(&buf, base);
753
754 for (cp = ref; (ch = *cp) != 0; cp++)
755 if (needs_quote(ch))
756 strbuf_addf(&buf, "%%%02x", ch);
757 else
758 strbuf_addch(&buf, *cp);
759
760 return strbuf_detach(&buf, NULL);
761 }
762
763 void append_remote_object_url(struct strbuf *buf, const char *url,
764 const char *hex,
765 int only_two_digit_prefix)
766 {
767 end_url_with_slash(buf, url);
768
769 strbuf_addf(buf, "objects/%.*s/", 2, hex);
770 if (!only_two_digit_prefix)
771 strbuf_addf(buf, "%s", hex+2);
772 }
773
774 char *get_remote_object_url(const char *url, const char *hex,
775 int only_two_digit_prefix)
776 {
777 struct strbuf buf = STRBUF_INIT;
778 append_remote_object_url(&buf, url, hex, only_two_digit_prefix);
779 return strbuf_detach(&buf, NULL);
780 }
781
782 int handle_curl_result(struct slot_results *results)
783 {
784 /*
785 * If we see a failing http code with CURLE_OK, we have turned off
786 * FAILONERROR (to keep the server's custom error response), and should
787 * translate the code into failure here.
788 */
789 if (results->curl_result == CURLE_OK &&
790 results->http_code >= 400) {
791 results->curl_result = CURLE_HTTP_RETURNED_ERROR;
792 /*
793 * Normally curl will already have put the "reason phrase"
794 * from the server into curl_errorstr; unfortunately without
795 * FAILONERROR it is lost, so we can give only the numeric
796 * status code.
797 */
798 snprintf(curl_errorstr, sizeof(curl_errorstr),
799 "The requested URL returned error: %ld",
800 results->http_code);
801 }
802
803 if (results->curl_result == CURLE_OK) {
804 credential_approve(&http_auth);
805 return HTTP_OK;
806 } else if (missing_target(results))
807 return HTTP_MISSING_TARGET;
808 else if (results->http_code == 401) {
809 if (http_auth.username && http_auth.password) {
810 credential_reject(&http_auth);
811 return HTTP_NOAUTH;
812 } else {
813 credential_fill(&http_auth);
814 return HTTP_REAUTH;
815 }
816 } else {
817 #if LIBCURL_VERSION_NUM >= 0x070c00
818 if (!curl_errorstr[0])
819 strlcpy(curl_errorstr,
820 curl_easy_strerror(results->curl_result),
821 sizeof(curl_errorstr));
822 #endif
823 return HTTP_ERROR;
824 }
825 }
826
827 /* http_request() targets */
828 #define HTTP_REQUEST_STRBUF 0
829 #define HTTP_REQUEST_FILE 1
830
831 static int http_request(const char *url, struct strbuf *type,
832 void *result, int target, int options)
833 {
834 struct active_request_slot *slot;
835 struct slot_results results;
836 struct curl_slist *headers = NULL;
837 struct strbuf buf = STRBUF_INIT;
838 int ret;
839
840 slot = get_active_slot();
841 slot->results = &results;
842 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
843
844 if (result == NULL) {
845 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
846 } else {
847 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
848 curl_easy_setopt(slot->curl, CURLOPT_FILE, result);
849
850 if (target == HTTP_REQUEST_FILE) {
851 long posn = ftell(result);
852 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
853 fwrite);
854 if (posn > 0) {
855 strbuf_addf(&buf, "Range: bytes=%ld-", posn);
856 headers = curl_slist_append(headers, buf.buf);
857 strbuf_reset(&buf);
858 }
859 } else
860 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
861 fwrite_buffer);
862 }
863
864 strbuf_addstr(&buf, "Pragma:");
865 if (options & HTTP_NO_CACHE)
866 strbuf_addstr(&buf, " no-cache");
867 if (options & HTTP_KEEP_ERROR)
868 curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
869
870 headers = curl_slist_append(headers, buf.buf);
871
872 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
873 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
874 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
875
876 if (start_active_slot(slot)) {
877 run_active_slot(slot);
878 ret = handle_curl_result(&results);
879 } else {
880 snprintf(curl_errorstr, sizeof(curl_errorstr),
881 "failed to start HTTP request");
882 ret = HTTP_START_FAILED;
883 }
884
885 if (type) {
886 char *t;
887 strbuf_reset(type);
888 curl_easy_getinfo(slot->curl, CURLINFO_CONTENT_TYPE, &t);
889 if (t)
890 strbuf_addstr(type, t);
891 }
892
893 curl_slist_free_all(headers);
894 strbuf_release(&buf);
895
896 return ret;
897 }
898
899 static int http_request_reauth(const char *url,
900 struct strbuf *type,
901 void *result, int target,
902 int options)
903 {
904 int ret = http_request(url, type, result, target, options);
905 if (ret != HTTP_REAUTH)
906 return ret;
907
908 /*
909 * If we are using KEEP_ERROR, the previous request may have
910 * put cruft into our output stream; we should clear it out before
911 * making our next request. We only know how to do this for
912 * the strbuf case, but that is enough to satisfy current callers.
913 */
914 if (options & HTTP_KEEP_ERROR) {
915 switch (target) {
916 case HTTP_REQUEST_STRBUF:
917 strbuf_reset(result);
918 break;
919 default:
920 die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
921 }
922 }
923 return http_request(url, type, result, target, options);
924 }
925
926 int http_get_strbuf(const char *url,
927 struct strbuf *type,
928 struct strbuf *result, int options)
929 {
930 return http_request_reauth(url, type, result,
931 HTTP_REQUEST_STRBUF, options);
932 }
933
934 /*
935 * Downloads a URL and stores the result in the given file.
936 *
937 * If a previous interrupted download is detected (i.e. a previous temporary
938 * file is still around) the download is resumed.
939 */
940 static int http_get_file(const char *url, const char *filename, int options)
941 {
942 int ret;
943 struct strbuf tmpfile = STRBUF_INIT;
944 FILE *result;
945
946 strbuf_addf(&tmpfile, "%s.temp", filename);
947 result = fopen(tmpfile.buf, "a");
948 if (! result) {
949 error("Unable to open local file %s", tmpfile.buf);
950 ret = HTTP_ERROR;
951 goto cleanup;
952 }
953
954 ret = http_request_reauth(url, NULL, result, HTTP_REQUEST_FILE, options);
955 fclose(result);
956
957 if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename))
958 ret = HTTP_ERROR;
959 cleanup:
960 strbuf_release(&tmpfile);
961 return ret;
962 }
963
964 int http_fetch_ref(const char *base, struct ref *ref)
965 {
966 char *url;
967 struct strbuf buffer = STRBUF_INIT;
968 int ret = -1;
969
970 url = quote_ref_url(base, ref->name);
971 if (http_get_strbuf(url, NULL, &buffer, HTTP_NO_CACHE) == HTTP_OK) {
972 strbuf_rtrim(&buffer);
973 if (buffer.len == 40)
974 ret = get_sha1_hex(buffer.buf, ref->old_sha1);
975 else if (!prefixcmp(buffer.buf, "ref: ")) {
976 ref->symref = xstrdup(buffer.buf + 5);
977 ret = 0;
978 }
979 }
980
981 strbuf_release(&buffer);
982 free(url);
983 return ret;
984 }
985
986 /* Helpers for fetching packs */
987 static char *fetch_pack_index(unsigned char *sha1, const char *base_url)
988 {
989 char *url, *tmp;
990 struct strbuf buf = STRBUF_INIT;
991
992 if (http_is_verbose)
993 fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1));
994
995 end_url_with_slash(&buf, base_url);
996 strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1));
997 url = strbuf_detach(&buf, NULL);
998
999 strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1));
1000 tmp = strbuf_detach(&buf, NULL);
1001
1002 if (http_get_file(url, tmp, 0) != HTTP_OK) {
1003 error("Unable to get pack index %s", url);
1004 free(tmp);
1005 tmp = NULL;
1006 }
1007
1008 free(url);
1009 return tmp;
1010 }
1011
1012 static int fetch_and_setup_pack_index(struct packed_git **packs_head,
1013 unsigned char *sha1, const char *base_url)
1014 {
1015 struct packed_git *new_pack;
1016 char *tmp_idx = NULL;
1017 int ret;
1018
1019 if (has_pack_index(sha1)) {
1020 new_pack = parse_pack_index(sha1, NULL);
1021 if (!new_pack)
1022 return -1; /* parse_pack_index() already issued error message */
1023 goto add_pack;
1024 }
1025
1026 tmp_idx = fetch_pack_index(sha1, base_url);
1027 if (!tmp_idx)
1028 return -1;
1029
1030 new_pack = parse_pack_index(sha1, tmp_idx);
1031 if (!new_pack) {
1032 unlink(tmp_idx);
1033 free(tmp_idx);
1034
1035 return -1; /* parse_pack_index() already issued error message */
1036 }
1037
1038 ret = verify_pack_index(new_pack);
1039 if (!ret) {
1040 close_pack_index(new_pack);
1041 ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1));
1042 }
1043 free(tmp_idx);
1044 if (ret)
1045 return -1;
1046
1047 add_pack:
1048 new_pack->next = *packs_head;
1049 *packs_head = new_pack;
1050 return 0;
1051 }
1052
1053 int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
1054 {
1055 int ret = 0, i = 0;
1056 char *url, *data;
1057 struct strbuf buf = STRBUF_INIT;
1058 unsigned char sha1[20];
1059
1060 end_url_with_slash(&buf, base_url);
1061 strbuf_addstr(&buf, "objects/info/packs");
1062 url = strbuf_detach(&buf, NULL);
1063
1064 ret = http_get_strbuf(url, NULL, &buf, HTTP_NO_CACHE);
1065 if (ret != HTTP_OK)
1066 goto cleanup;
1067
1068 data = buf.buf;
1069 while (i < buf.len) {
1070 switch (data[i]) {
1071 case 'P':
1072 i++;
1073 if (i + 52 <= buf.len &&
1074 !prefixcmp(data + i, " pack-") &&
1075 !prefixcmp(data + i + 46, ".pack\n")) {
1076 get_sha1_hex(data + i + 6, sha1);
1077 fetch_and_setup_pack_index(packs_head, sha1,
1078 base_url);
1079 i += 51;
1080 break;
1081 }
1082 default:
1083 while (i < buf.len && data[i] != '\n')
1084 i++;
1085 }
1086 i++;
1087 }
1088
1089 cleanup:
1090 free(url);
1091 return ret;
1092 }
1093
1094 void release_http_pack_request(struct http_pack_request *preq)
1095 {
1096 if (preq->packfile != NULL) {
1097 fclose(preq->packfile);
1098 preq->packfile = NULL;
1099 }
1100 if (preq->range_header != NULL) {
1101 curl_slist_free_all(preq->range_header);
1102 preq->range_header = NULL;
1103 }
1104 preq->slot = NULL;
1105 free(preq->url);
1106 }
1107
1108 int finish_http_pack_request(struct http_pack_request *preq)
1109 {
1110 struct packed_git **lst;
1111 struct packed_git *p = preq->target;
1112 char *tmp_idx;
1113 struct child_process ip;
1114 const char *ip_argv[8];
1115
1116 close_pack_index(p);
1117
1118 fclose(preq->packfile);
1119 preq->packfile = NULL;
1120
1121 lst = preq->lst;
1122 while (*lst != p)
1123 lst = &((*lst)->next);
1124 *lst = (*lst)->next;
1125
1126 tmp_idx = xstrdup(preq->tmpfile);
1127 strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"),
1128 ".idx.temp");
1129
1130 ip_argv[0] = "index-pack";
1131 ip_argv[1] = "-o";
1132 ip_argv[2] = tmp_idx;
1133 ip_argv[3] = preq->tmpfile;
1134 ip_argv[4] = NULL;
1135
1136 memset(&ip, 0, sizeof(ip));
1137 ip.argv = ip_argv;
1138 ip.git_cmd = 1;
1139 ip.no_stdin = 1;
1140 ip.no_stdout = 1;
1141
1142 if (run_command(&ip)) {
1143 unlink(preq->tmpfile);
1144 unlink(tmp_idx);
1145 free(tmp_idx);
1146 return -1;
1147 }
1148
1149 unlink(sha1_pack_index_name(p->sha1));
1150
1151 if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1))
1152 || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) {
1153 free(tmp_idx);
1154 return -1;
1155 }
1156
1157 install_packed_git(p);
1158 free(tmp_idx);
1159 return 0;
1160 }
1161
1162 struct http_pack_request *new_http_pack_request(
1163 struct packed_git *target, const char *base_url)
1164 {
1165 long prev_posn = 0;
1166 char range[RANGE_HEADER_SIZE];
1167 struct strbuf buf = STRBUF_INIT;
1168 struct http_pack_request *preq;
1169
1170 preq = xcalloc(1, sizeof(*preq));
1171 preq->target = target;
1172
1173 end_url_with_slash(&buf, base_url);
1174 strbuf_addf(&buf, "objects/pack/pack-%s.pack",
1175 sha1_to_hex(target->sha1));
1176 preq->url = strbuf_detach(&buf, NULL);
1177
1178 snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp",
1179 sha1_pack_name(target->sha1));
1180 preq->packfile = fopen(preq->tmpfile, "a");
1181 if (!preq->packfile) {
1182 error("Unable to open local file %s for pack",
1183 preq->tmpfile);
1184 goto abort;
1185 }
1186
1187 preq->slot = get_active_slot();
1188 curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile);
1189 curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
1190 curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url);
1191 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1192 no_pragma_header);
1193
1194 /*
1195 * If there is data present from a previous transfer attempt,
1196 * resume where it left off
1197 */
1198 prev_posn = ftell(preq->packfile);
1199 if (prev_posn>0) {
1200 if (http_is_verbose)
1201 fprintf(stderr,
1202 "Resuming fetch of pack %s at byte %ld\n",
1203 sha1_to_hex(target->sha1), prev_posn);
1204 sprintf(range, "Range: bytes=%ld-", prev_posn);
1205 preq->range_header = curl_slist_append(NULL, range);
1206 curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
1207 preq->range_header);
1208 }
1209
1210 return preq;
1211
1212 abort:
1213 free(preq->url);
1214 free(preq);
1215 return NULL;
1216 }
1217
1218 /* Helpers for fetching objects (loose) */
1219 static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb,
1220 void *data)
1221 {
1222 unsigned char expn[4096];
1223 size_t size = eltsize * nmemb;
1224 int posn = 0;
1225 struct http_object_request *freq =
1226 (struct http_object_request *)data;
1227 do {
1228 ssize_t retval = xwrite(freq->localfile,
1229 (char *) ptr + posn, size - posn);
1230 if (retval < 0)
1231 return posn;
1232 posn += retval;
1233 } while (posn < size);
1234
1235 freq->stream.avail_in = size;
1236 freq->stream.next_in = (void *)ptr;
1237 do {
1238 freq->stream.next_out = expn;
1239 freq->stream.avail_out = sizeof(expn);
1240 freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH);
1241 git_SHA1_Update(&freq->c, expn,
1242 sizeof(expn) - freq->stream.avail_out);
1243 } while (freq->stream.avail_in && freq->zret == Z_OK);
1244 return size;
1245 }
1246
1247 struct http_object_request *new_http_object_request(const char *base_url,
1248 unsigned char *sha1)
1249 {
1250 char *hex = sha1_to_hex(sha1);
1251 char *filename;
1252 char prevfile[PATH_MAX];
1253 int prevlocal;
1254 char prev_buf[PREV_BUF_SIZE];
1255 ssize_t prev_read = 0;
1256 long prev_posn = 0;
1257 char range[RANGE_HEADER_SIZE];
1258 struct curl_slist *range_header = NULL;
1259 struct http_object_request *freq;
1260
1261 freq = xcalloc(1, sizeof(*freq));
1262 hashcpy(freq->sha1, sha1);
1263 freq->localfile = -1;
1264
1265 filename = sha1_file_name(sha1);
1266 snprintf(freq->tmpfile, sizeof(freq->tmpfile),
1267 "%s.temp", filename);
1268
1269 snprintf(prevfile, sizeof(prevfile), "%s.prev", filename);
1270 unlink_or_warn(prevfile);
1271 rename(freq->tmpfile, prevfile);
1272 unlink_or_warn(freq->tmpfile);
1273
1274 if (freq->localfile != -1)
1275 error("fd leakage in start: %d", freq->localfile);
1276 freq->localfile = open(freq->tmpfile,
1277 O_WRONLY | O_CREAT | O_EXCL, 0666);
1278 /*
1279 * This could have failed due to the "lazy directory creation";
1280 * try to mkdir the last path component.
1281 */
1282 if (freq->localfile < 0 && errno == ENOENT) {
1283 char *dir = strrchr(freq->tmpfile, '/');
1284 if (dir) {
1285 *dir = 0;
1286 mkdir(freq->tmpfile, 0777);
1287 *dir = '/';
1288 }
1289 freq->localfile = open(freq->tmpfile,
1290 O_WRONLY | O_CREAT | O_EXCL, 0666);
1291 }
1292
1293 if (freq->localfile < 0) {
1294 error("Couldn't create temporary file %s: %s",
1295 freq->tmpfile, strerror(errno));
1296 goto abort;
1297 }
1298
1299 git_inflate_init(&freq->stream);
1300
1301 git_SHA1_Init(&freq->c);
1302
1303 freq->url = get_remote_object_url(base_url, hex, 0);
1304
1305 /*
1306 * If a previous temp file is present, process what was already
1307 * fetched.
1308 */
1309 prevlocal = open(prevfile, O_RDONLY);
1310 if (prevlocal != -1) {
1311 do {
1312 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
1313 if (prev_read>0) {
1314 if (fwrite_sha1_file(prev_buf,
1315 1,
1316 prev_read,
1317 freq) == prev_read) {
1318 prev_posn += prev_read;
1319 } else {
1320 prev_read = -1;
1321 }
1322 }
1323 } while (prev_read > 0);
1324 close(prevlocal);
1325 }
1326 unlink_or_warn(prevfile);
1327
1328 /*
1329 * Reset inflate/SHA1 if there was an error reading the previous temp
1330 * file; also rewind to the beginning of the local file.
1331 */
1332 if (prev_read == -1) {
1333 memset(&freq->stream, 0, sizeof(freq->stream));
1334 git_inflate_init(&freq->stream);
1335 git_SHA1_Init(&freq->c);
1336 if (prev_posn>0) {
1337 prev_posn = 0;
1338 lseek(freq->localfile, 0, SEEK_SET);
1339 if (ftruncate(freq->localfile, 0) < 0) {
1340 error("Couldn't truncate temporary file %s: %s",
1341 freq->tmpfile, strerror(errno));
1342 goto abort;
1343 }
1344 }
1345 }
1346
1347 freq->slot = get_active_slot();
1348
1349 curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
1350 curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
1351 curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);
1352 curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url);
1353 curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
1354
1355 /*
1356 * If we have successfully processed data from a previous fetch
1357 * attempt, only fetch the data we don't already have.
1358 */
1359 if (prev_posn>0) {
1360 if (http_is_verbose)
1361 fprintf(stderr,
1362 "Resuming fetch of object %s at byte %ld\n",
1363 hex, prev_posn);
1364 sprintf(range, "Range: bytes=%ld-", prev_posn);
1365 range_header = curl_slist_append(range_header, range);
1366 curl_easy_setopt(freq->slot->curl,
1367 CURLOPT_HTTPHEADER, range_header);
1368 }
1369
1370 return freq;
1371
1372 abort:
1373 free(freq->url);
1374 free(freq);
1375 return NULL;
1376 }
1377
1378 void process_http_object_request(struct http_object_request *freq)
1379 {
1380 if (freq->slot == NULL)
1381 return;
1382 freq->curl_result = freq->slot->curl_result;
1383 freq->http_code = freq->slot->http_code;
1384 freq->slot = NULL;
1385 }
1386
1387 int finish_http_object_request(struct http_object_request *freq)
1388 {
1389 struct stat st;
1390
1391 close(freq->localfile);
1392 freq->localfile = -1;
1393
1394 process_http_object_request(freq);
1395
1396 if (freq->http_code == 416) {
1397 warning("requested range invalid; we may already have all the data.");
1398 } else if (freq->curl_result != CURLE_OK) {
1399 if (stat(freq->tmpfile, &st) == 0)
1400 if (st.st_size == 0)
1401 unlink_or_warn(freq->tmpfile);
1402 return -1;
1403 }
1404
1405 git_inflate_end(&freq->stream);
1406 git_SHA1_Final(freq->real_sha1, &freq->c);
1407 if (freq->zret != Z_STREAM_END) {
1408 unlink_or_warn(freq->tmpfile);
1409 return -1;
1410 }
1411 if (hashcmp(freq->sha1, freq->real_sha1)) {
1412 unlink_or_warn(freq->tmpfile);
1413 return -1;
1414 }
1415 freq->rename =
1416 move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1));
1417
1418 return freq->rename;
1419 }
1420
1421 void abort_http_object_request(struct http_object_request *freq)
1422 {
1423 unlink_or_warn(freq->tmpfile);
1424
1425 release_http_object_request(freq);
1426 }
1427
1428 void release_http_object_request(struct http_object_request *freq)
1429 {
1430 if (freq->localfile != -1) {
1431 close(freq->localfile);
1432 freq->localfile = -1;
1433 }
1434 if (freq->url != NULL) {
1435 free(freq->url);
1436 freq->url = NULL;
1437 }
1438 if (freq->slot != NULL) {
1439 freq->slot->callback_func = NULL;
1440 freq->slot->callback_data = NULL;
1441 release_active_slot(freq->slot);
1442 freq->slot = NULL;
1443 }
1444 }
Jonathan Nieder’s miscellaneous git branches