4 #include "run-command.h"
9 size_t http_post_buffer
= 16 * LARGE_PACKET_MAX
;
11 #if LIBCURL_VERSION_NUM >= 0x070a06
12 #define LIBCURL_CAN_HANDLE_AUTH_ANY
15 static int min_curl_sessions
= 1;
16 static int curl_session_count
;
18 static int max_requests
= -1;
21 #ifndef NO_CURL_EASY_DUPHANDLE
22 static CURL
*curl_default
;
25 #define PREV_BUF_SIZE 4096
26 #define RANGE_HEADER_SIZE 30
28 char curl_errorstr
[CURL_ERROR_SIZE
];
30 static int curl_ssl_verify
= -1;
31 static const char *ssl_cert
;
32 #if LIBCURL_VERSION_NUM >= 0x070903
33 static const char *ssl_key
;
35 #if LIBCURL_VERSION_NUM >= 0x070908
36 static const char *ssl_capath
;
38 static const char *ssl_cainfo
;
39 static long curl_low_speed_limit
= -1;
40 static long curl_low_speed_time
= -1;
41 static int curl_ftp_no_epsv
;
42 static const char *curl_http_proxy
;
43 static char *user_name
, *user_pass
;
45 #if LIBCURL_VERSION_NUM >= 0x071700
46 /* Use CURLOPT_KEYPASSWD as is */
47 #elif LIBCURL_VERSION_NUM >= 0x070903
48 #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
50 #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
53 static char *ssl_cert_password
;
54 static int ssl_cert_password_required
;
56 static struct curl_slist
*pragma_header
;
57 static struct curl_slist
*no_pragma_header
;
59 static struct active_request_slot
*active_queue_head
;
61 size_t fread_buffer(void *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
63 size_t size
= eltsize
* nmemb
;
64 struct buffer
*buffer
= buffer_
;
66 if (size
> buffer
->buf
.len
- buffer
->posn
)
67 size
= buffer
->buf
.len
- buffer
->posn
;
68 memcpy(ptr
, buffer
->buf
.buf
+ buffer
->posn
, size
);
75 curlioerr
ioctl_buffer(CURL
*handle
, int cmd
, void *clientp
)
77 struct buffer
*buffer
= clientp
;
83 case CURLIOCMD_RESTARTREAD
:
88 return CURLIOE_UNKNOWNCMD
;
93 size_t fwrite_buffer(const void *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
95 size_t size
= eltsize
* nmemb
;
96 struct strbuf
*buffer
= buffer_
;
98 strbuf_add(buffer
, ptr
, size
);
103 size_t fwrite_null(const void *ptr
, size_t eltsize
, size_t nmemb
, void *strbuf
)
106 return eltsize
* nmemb
;
109 #ifdef USE_CURL_MULTI
110 static void process_curl_messages(void)
113 struct active_request_slot
*slot
;
114 CURLMsg
*curl_message
= curl_multi_info_read(curlm
, &num_messages
);
116 while (curl_message
!= NULL
) {
117 if (curl_message
->msg
== CURLMSG_DONE
) {
118 int curl_result
= curl_message
->data
.result
;
119 slot
= active_queue_head
;
120 while (slot
!= NULL
&&
121 slot
->curl
!= curl_message
->easy_handle
)
124 curl_multi_remove_handle(curlm
, slot
->curl
);
125 slot
->curl_result
= curl_result
;
126 finish_active_slot(slot
);
128 fprintf(stderr
, "Received DONE message for unknown request!\n");
131 fprintf(stderr
, "Unknown CURL message received: %d\n",
132 (int)curl_message
->msg
);
134 curl_message
= curl_multi_info_read(curlm
, &num_messages
);
139 static int http_options(const char *var
, const char *value
, void *cb
)
141 if (!strcmp("http.sslverify", var
)) {
142 curl_ssl_verify
= git_config_bool(var
, value
);
145 if (!strcmp("http.sslcert", var
))
146 return git_config_string(&ssl_cert
, var
, value
);
147 #if LIBCURL_VERSION_NUM >= 0x070903
148 if (!strcmp("http.sslkey", var
))
149 return git_config_string(&ssl_key
, var
, value
);
151 #if LIBCURL_VERSION_NUM >= 0x070908
152 if (!strcmp("http.sslcapath", var
))
153 return git_config_string(&ssl_capath
, var
, value
);
155 if (!strcmp("http.sslcainfo", var
))
156 return git_config_string(&ssl_cainfo
, var
, value
);
157 if (!strcmp("http.sslcertpasswordprotected", var
)) {
158 if (git_config_bool(var
, value
))
159 ssl_cert_password_required
= 1;
162 if (!strcmp("http.minsessions", var
)) {
163 min_curl_sessions
= git_config_int(var
, value
);
164 #ifndef USE_CURL_MULTI
165 if (min_curl_sessions
> 1)
166 min_curl_sessions
= 1;
170 #ifdef USE_CURL_MULTI
171 if (!strcmp("http.maxrequests", var
)) {
172 max_requests
= git_config_int(var
, value
);
176 if (!strcmp("http.lowspeedlimit", var
)) {
177 curl_low_speed_limit
= (long)git_config_int(var
, value
);
180 if (!strcmp("http.lowspeedtime", var
)) {
181 curl_low_speed_time
= (long)git_config_int(var
, value
);
185 if (!strcmp("http.noepsv", var
)) {
186 curl_ftp_no_epsv
= git_config_bool(var
, value
);
189 if (!strcmp("http.proxy", var
))
190 return git_config_string(&curl_http_proxy
, var
, value
);
192 if (!strcmp("http.postbuffer", var
)) {
193 http_post_buffer
= git_config_int(var
, value
);
194 if (http_post_buffer
< LARGE_PACKET_MAX
)
195 http_post_buffer
= LARGE_PACKET_MAX
;
199 /* Fall back on the default ones */
200 return git_default_config(var
, value
, cb
);
203 static void init_curl_http_auth(CURL
*result
)
206 struct strbuf up
= STRBUF_INIT
;
208 user_pass
= xstrdup(getpass("Password: "));
209 strbuf_addf(&up
, "%s:%s", user_name
, user_pass
);
210 curl_easy_setopt(result
, CURLOPT_USERPWD
,
211 strbuf_detach(&up
, NULL
));
215 static int has_cert_password(void)
217 if (ssl_cert_password
!= NULL
)
219 if (ssl_cert
== NULL
|| ssl_cert_password_required
!= 1)
221 /* Only prompt the user once. */
222 ssl_cert_password_required
= -1;
223 ssl_cert_password
= getpass("Certificate Password: ");
224 if (ssl_cert_password
!= NULL
) {
225 ssl_cert_password
= xstrdup(ssl_cert_password
);
231 static CURL
*get_curl_handle(void)
233 CURL
*result
= curl_easy_init();
235 if (!curl_ssl_verify
) {
236 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 0);
237 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 0);
239 /* Verify authenticity of the peer's certificate */
240 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 1);
241 /* The name in the cert must match whom we tried to connect */
242 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 2);
245 #if LIBCURL_VERSION_NUM >= 0x070907
246 curl_easy_setopt(result
, CURLOPT_NETRC
, CURL_NETRC_OPTIONAL
);
248 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
249 curl_easy_setopt(result
, CURLOPT_HTTPAUTH
, CURLAUTH_ANY
);
252 init_curl_http_auth(result
);
254 if (ssl_cert
!= NULL
)
255 curl_easy_setopt(result
, CURLOPT_SSLCERT
, ssl_cert
);
256 if (has_cert_password())
257 curl_easy_setopt(result
, CURLOPT_KEYPASSWD
, ssl_cert_password
);
258 #if LIBCURL_VERSION_NUM >= 0x070903
260 curl_easy_setopt(result
, CURLOPT_SSLKEY
, ssl_key
);
262 #if LIBCURL_VERSION_NUM >= 0x070908
263 if (ssl_capath
!= NULL
)
264 curl_easy_setopt(result
, CURLOPT_CAPATH
, ssl_capath
);
266 if (ssl_cainfo
!= NULL
)
267 curl_easy_setopt(result
, CURLOPT_CAINFO
, ssl_cainfo
);
268 curl_easy_setopt(result
, CURLOPT_FAILONERROR
, 1);
270 if (curl_low_speed_limit
> 0 && curl_low_speed_time
> 0) {
271 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_LIMIT
,
272 curl_low_speed_limit
);
273 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_TIME
,
274 curl_low_speed_time
);
277 curl_easy_setopt(result
, CURLOPT_FOLLOWLOCATION
, 1);
279 if (getenv("GIT_CURL_VERBOSE"))
280 curl_easy_setopt(result
, CURLOPT_VERBOSE
, 1);
282 curl_easy_setopt(result
, CURLOPT_USERAGENT
, GIT_USER_AGENT
);
284 if (curl_ftp_no_epsv
)
285 curl_easy_setopt(result
, CURLOPT_FTP_USE_EPSV
, 0);
288 curl_easy_setopt(result
, CURLOPT_PROXY
, curl_http_proxy
);
293 static void http_auth_init(const char *url
)
295 char *at
, *colon
, *cp
, *slash
;
298 cp
= strstr(url
, "://");
303 * Ok, the URL looks like "proto://something". Which one?
304 * "proto://<user>:<pass>@<host>/...",
305 * "proto://<user>@<host>/...", or just
306 * "proto://<host>/..."?
309 at
= strchr(cp
, '@');
310 colon
= strchr(cp
, ':');
311 slash
= strchrnul(cp
, '/');
312 if (!at
|| slash
<= at
)
313 return; /* No credentials */
314 if (!colon
|| at
<= colon
) {
317 user_name
= xmalloc(len
+ 1);
318 memcpy(user_name
, cp
, len
);
319 user_name
[len
] = '\0';
323 user_name
= xmalloc(len
+ 1);
324 memcpy(user_name
, cp
, len
);
325 user_name
[len
] = '\0';
326 len
= at
- (colon
+ 1);
327 user_pass
= xmalloc(len
+ 1);
328 memcpy(user_pass
, colon
+ 1, len
);
329 user_pass
[len
] = '\0';
333 static void set_from_env(const char **var
, const char *envname
)
335 const char *val
= getenv(envname
);
340 void http_init(struct remote
*remote
)
342 char *low_speed_limit
;
343 char *low_speed_time
;
347 git_config(http_options
, NULL
);
349 curl_global_init(CURL_GLOBAL_ALL
);
351 if (remote
&& remote
->http_proxy
)
352 curl_http_proxy
= xstrdup(remote
->http_proxy
);
354 pragma_header
= curl_slist_append(pragma_header
, "Pragma: no-cache");
355 no_pragma_header
= curl_slist_append(no_pragma_header
, "Pragma:");
357 #ifdef USE_CURL_MULTI
359 char *http_max_requests
= getenv("GIT_HTTP_MAX_REQUESTS");
360 if (http_max_requests
!= NULL
)
361 max_requests
= atoi(http_max_requests
);
364 curlm
= curl_multi_init();
366 fprintf(stderr
, "Error creating curl multi handle.\n");
371 if (getenv("GIT_SSL_NO_VERIFY"))
374 set_from_env(&ssl_cert
, "GIT_SSL_CERT");
375 #if LIBCURL_VERSION_NUM >= 0x070903
376 set_from_env(&ssl_key
, "GIT_SSL_KEY");
378 #if LIBCURL_VERSION_NUM >= 0x070908
379 set_from_env(&ssl_capath
, "GIT_SSL_CAPATH");
381 set_from_env(&ssl_cainfo
, "GIT_SSL_CAINFO");
383 low_speed_limit
= getenv("GIT_HTTP_LOW_SPEED_LIMIT");
384 if (low_speed_limit
!= NULL
)
385 curl_low_speed_limit
= strtol(low_speed_limit
, NULL
, 10);
386 low_speed_time
= getenv("GIT_HTTP_LOW_SPEED_TIME");
387 if (low_speed_time
!= NULL
)
388 curl_low_speed_time
= strtol(low_speed_time
, NULL
, 10);
390 if (curl_ssl_verify
== -1)
393 curl_session_count
= 0;
394 #ifdef USE_CURL_MULTI
395 if (max_requests
< 1)
396 max_requests
= DEFAULT_MAX_REQUESTS
;
399 if (getenv("GIT_CURL_FTP_NO_EPSV"))
400 curl_ftp_no_epsv
= 1;
402 if (remote
&& remote
->url
&& remote
->url
[0]) {
403 http_auth_init(remote
->url
[0]);
404 if (!ssl_cert_password_required
&&
405 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
406 !prefixcmp(remote
->url
[0], "https://"))
407 ssl_cert_password_required
= 1;
410 #ifndef NO_CURL_EASY_DUPHANDLE
411 curl_default
= get_curl_handle();
415 void http_cleanup(void)
417 struct active_request_slot
*slot
= active_queue_head
;
419 while (slot
!= NULL
) {
420 struct active_request_slot
*next
= slot
->next
;
421 if (slot
->curl
!= NULL
) {
422 #ifdef USE_CURL_MULTI
423 curl_multi_remove_handle(curlm
, slot
->curl
);
425 curl_easy_cleanup(slot
->curl
);
430 active_queue_head
= NULL
;
432 #ifndef NO_CURL_EASY_DUPHANDLE
433 curl_easy_cleanup(curl_default
);
436 #ifdef USE_CURL_MULTI
437 curl_multi_cleanup(curlm
);
439 curl_global_cleanup();
441 curl_slist_free_all(pragma_header
);
442 pragma_header
= NULL
;
444 curl_slist_free_all(no_pragma_header
);
445 no_pragma_header
= NULL
;
447 if (curl_http_proxy
) {
448 free((void *)curl_http_proxy
);
449 curl_http_proxy
= NULL
;
452 if (ssl_cert_password
!= NULL
) {
453 memset(ssl_cert_password
, 0, strlen(ssl_cert_password
));
454 free(ssl_cert_password
);
455 ssl_cert_password
= NULL
;
457 ssl_cert_password_required
= 0;
460 struct active_request_slot
*get_active_slot(void)
462 struct active_request_slot
*slot
= active_queue_head
;
463 struct active_request_slot
*newslot
;
465 #ifdef USE_CURL_MULTI
468 /* Wait for a slot to open up if the queue is full */
469 while (active_requests
>= max_requests
) {
470 curl_multi_perform(curlm
, &num_transfers
);
471 if (num_transfers
< active_requests
)
472 process_curl_messages();
476 while (slot
!= NULL
&& slot
->in_use
)
480 newslot
= xmalloc(sizeof(*newslot
));
481 newslot
->curl
= NULL
;
483 newslot
->next
= NULL
;
485 slot
= active_queue_head
;
487 active_queue_head
= newslot
;
489 while (slot
->next
!= NULL
)
491 slot
->next
= newslot
;
496 if (slot
->curl
== NULL
) {
497 #ifdef NO_CURL_EASY_DUPHANDLE
498 slot
->curl
= get_curl_handle();
500 slot
->curl
= curl_easy_duphandle(curl_default
);
502 curl_session_count
++;
508 slot
->results
= NULL
;
509 slot
->finished
= NULL
;
510 slot
->callback_data
= NULL
;
511 slot
->callback_func
= NULL
;
512 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, pragma_header
);
513 curl_easy_setopt(slot
->curl
, CURLOPT_ERRORBUFFER
, curl_errorstr
);
514 curl_easy_setopt(slot
->curl
, CURLOPT_CUSTOMREQUEST
, NULL
);
515 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, NULL
);
516 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, NULL
);
517 curl_easy_setopt(slot
->curl
, CURLOPT_UPLOAD
, 0);
518 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
523 int start_active_slot(struct active_request_slot
*slot
)
525 #ifdef USE_CURL_MULTI
526 CURLMcode curlm_result
= curl_multi_add_handle(curlm
, slot
->curl
);
529 if (curlm_result
!= CURLM_OK
&&
530 curlm_result
!= CURLM_CALL_MULTI_PERFORM
) {
537 * We know there must be something to do, since we just added
540 curl_multi_perform(curlm
, &num_transfers
);
545 #ifdef USE_CURL_MULTI
549 struct fill_chain
*next
;
552 static struct fill_chain
*fill_cfg
;
554 void add_fill_function(void *data
, int (*fill
)(void *))
556 struct fill_chain
*new = xmalloc(sizeof(*new));
557 struct fill_chain
**linkp
= &fill_cfg
;
562 linkp
= &(*linkp
)->next
;
566 void fill_active_slots(void)
568 struct active_request_slot
*slot
= active_queue_head
;
570 while (active_requests
< max_requests
) {
571 struct fill_chain
*fill
;
572 for (fill
= fill_cfg
; fill
; fill
= fill
->next
)
573 if (fill
->fill(fill
->data
))
580 while (slot
!= NULL
) {
581 if (!slot
->in_use
&& slot
->curl
!= NULL
582 && curl_session_count
> min_curl_sessions
) {
583 curl_easy_cleanup(slot
->curl
);
585 curl_session_count
--;
591 void step_active_slots(void)
594 CURLMcode curlm_result
;
597 curlm_result
= curl_multi_perform(curlm
, &num_transfers
);
598 } while (curlm_result
== CURLM_CALL_MULTI_PERFORM
);
599 if (num_transfers
< active_requests
) {
600 process_curl_messages();
606 void run_active_slot(struct active_request_slot
*slot
)
608 #ifdef USE_CURL_MULTI
615 struct timeval select_timeout
;
618 slot
->finished
= &finished
;
623 if (!data_received
&& slot
->local
!= NULL
) {
624 current_pos
= ftell(slot
->local
);
625 if (current_pos
> last_pos
)
627 last_pos
= current_pos
;
630 if (slot
->in_use
&& !data_received
) {
635 select_timeout
.tv_sec
= 0;
636 select_timeout
.tv_usec
= 50000;
637 select(max_fd
, &readfds
, &writefds
,
638 &excfds
, &select_timeout
);
642 while (slot
->in_use
) {
643 slot
->curl_result
= curl_easy_perform(slot
->curl
);
644 finish_active_slot(slot
);
649 static void closedown_active_slot(struct active_request_slot
*slot
)
655 static void release_active_slot(struct active_request_slot
*slot
)
657 closedown_active_slot(slot
);
658 if (slot
->curl
&& curl_session_count
> min_curl_sessions
) {
659 #ifdef USE_CURL_MULTI
660 curl_multi_remove_handle(curlm
, slot
->curl
);
662 curl_easy_cleanup(slot
->curl
);
664 curl_session_count
--;
666 #ifdef USE_CURL_MULTI
671 void finish_active_slot(struct active_request_slot
*slot
)
673 closedown_active_slot(slot
);
674 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
, &slot
->http_code
);
676 if (slot
->finished
!= NULL
)
677 (*slot
->finished
) = 1;
679 /* Store slot results so they can be read after the slot is reused */
680 if (slot
->results
!= NULL
) {
681 slot
->results
->curl_result
= slot
->curl_result
;
682 slot
->results
->http_code
= slot
->http_code
;
685 /* Run callback if appropriate */
686 if (slot
->callback_func
!= NULL
)
687 slot
->callback_func(slot
->callback_data
);
690 void finish_all_active_slots(void)
692 struct active_request_slot
*slot
= active_queue_head
;
696 run_active_slot(slot
);
697 slot
= active_queue_head
;
703 /* Helpers for modifying and creating URLs */
704 static inline int needs_quote(int ch
)
706 if (((ch
>= 'A') && (ch
<= 'Z'))
707 || ((ch
>= 'a') && (ch
<= 'z'))
708 || ((ch
>= '0') && (ch
<= '9'))
716 static inline int hex(int v
)
724 static void end_url_with_slash(struct strbuf
*buf
, const char *url
)
726 strbuf_addstr(buf
, url
);
727 if (buf
->len
&& buf
->buf
[buf
->len
- 1] != '/')
728 strbuf_addstr(buf
, "/");
731 static char *quote_ref_url(const char *base
, const char *ref
)
733 struct strbuf buf
= STRBUF_INIT
;
737 end_url_with_slash(&buf
, base
);
739 for (cp
= ref
; (ch
= *cp
) != 0; cp
++)
741 strbuf_addf(&buf
, "%%%02x", ch
);
743 strbuf_addch(&buf
, *cp
);
745 return strbuf_detach(&buf
, NULL
);
748 void append_remote_object_url(struct strbuf
*buf
, const char *url
,
750 int only_two_digit_prefix
)
752 end_url_with_slash(buf
, url
);
754 strbuf_addf(buf
, "objects/%.*s/", 2, hex
);
755 if (!only_two_digit_prefix
)
756 strbuf_addf(buf
, "%s", hex
+2);
759 char *get_remote_object_url(const char *url
, const char *hex
,
760 int only_two_digit_prefix
)
762 struct strbuf buf
= STRBUF_INIT
;
763 append_remote_object_url(&buf
, url
, hex
, only_two_digit_prefix
);
764 return strbuf_detach(&buf
, NULL
);
767 /* http_request() targets */
768 #define HTTP_REQUEST_STRBUF 0
769 #define HTTP_REQUEST_FILE 1
771 static int http_request(const char *url
, void *result
, int target
, int options
)
773 struct active_request_slot
*slot
;
774 struct slot_results results
;
775 struct curl_slist
*headers
= NULL
;
776 struct strbuf buf
= STRBUF_INIT
;
779 slot
= get_active_slot();
780 slot
->results
= &results
;
781 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
783 if (result
== NULL
) {
784 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 1);
786 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
787 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, result
);
789 if (target
== HTTP_REQUEST_FILE
) {
790 long posn
= ftell(result
);
791 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
794 strbuf_addf(&buf
, "Range: bytes=%ld-", posn
);
795 headers
= curl_slist_append(headers
, buf
.buf
);
798 slot
->local
= result
;
800 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
804 strbuf_addstr(&buf
, "Pragma:");
805 if (options
& HTTP_NO_CACHE
)
806 strbuf_addstr(&buf
, " no-cache");
808 headers
= curl_slist_append(headers
, buf
.buf
);
810 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, url
);
811 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
813 if (start_active_slot(slot
)) {
814 run_active_slot(slot
);
815 if (results
.curl_result
== CURLE_OK
)
817 else if (missing_target(&results
))
818 ret
= HTTP_MISSING_TARGET
;
822 error("Unable to start HTTP request for %s", url
);
823 ret
= HTTP_START_FAILED
;
827 curl_slist_free_all(headers
);
828 strbuf_release(&buf
);
833 int http_get_strbuf(const char *url
, struct strbuf
*result
, int options
)
835 return http_request(url
, result
, HTTP_REQUEST_STRBUF
, options
);
839 * Downloads an url and stores the result in the given file.
841 * If a previous interrupted download is detected (i.e. a previous temporary
842 * file is still around) the download is resumed.
844 static int http_get_file(const char *url
, const char *filename
, int options
)
847 struct strbuf tmpfile
= STRBUF_INIT
;
850 strbuf_addf(&tmpfile
, "%s.temp", filename
);
851 result
= fopen(tmpfile
.buf
, "a");
853 error("Unable to open local file %s", tmpfile
.buf
);
858 ret
= http_request(url
, result
, HTTP_REQUEST_FILE
, options
);
861 if ((ret
== HTTP_OK
) && move_temp_to_file(tmpfile
.buf
, filename
))
864 strbuf_release(&tmpfile
);
868 int http_error(const char *url
, int ret
)
870 /* http_request has already handled HTTP_START_FAILED. */
871 if (ret
!= HTTP_START_FAILED
)
872 error("%s while accessing %s\n", curl_errorstr
, url
);
877 int http_fetch_ref(const char *base
, struct ref
*ref
)
880 struct strbuf buffer
= STRBUF_INIT
;
883 url
= quote_ref_url(base
, ref
->name
);
884 if (http_get_strbuf(url
, &buffer
, HTTP_NO_CACHE
) == HTTP_OK
) {
885 strbuf_rtrim(&buffer
);
886 if (buffer
.len
== 40)
887 ret
= get_sha1_hex(buffer
.buf
, ref
->old_sha1
);
888 else if (!prefixcmp(buffer
.buf
, "ref: ")) {
889 ref
->symref
= xstrdup(buffer
.buf
+ 5);
894 strbuf_release(&buffer
);
899 /* Helpers for fetching packs */
900 static int fetch_pack_index(unsigned char *sha1
, const char *base_url
)
905 struct strbuf buf
= STRBUF_INIT
;
907 if (has_pack_index(sha1
)) {
913 fprintf(stderr
, "Getting index for pack %s\n", sha1_to_hex(sha1
));
915 end_url_with_slash(&buf
, base_url
);
916 strbuf_addf(&buf
, "objects/pack/pack-%s.idx", sha1_to_hex(sha1
));
917 url
= strbuf_detach(&buf
, NULL
);
919 filename
= sha1_pack_index_name(sha1
);
920 if (http_get_file(url
, filename
, 0) != HTTP_OK
)
921 ret
= error("Unable to get pack index %s\n", url
);
928 static int fetch_and_setup_pack_index(struct packed_git
**packs_head
,
929 unsigned char *sha1
, const char *base_url
)
931 struct packed_git
*new_pack
;
933 if (fetch_pack_index(sha1
, base_url
))
936 new_pack
= parse_pack_index(sha1
, sha1_pack_index_name(sha1
));
938 return -1; /* parse_pack_index() already issued error message */
939 new_pack
->next
= *packs_head
;
940 *packs_head
= new_pack
;
944 int http_get_info_packs(const char *base_url
, struct packed_git
**packs_head
)
948 struct strbuf buf
= STRBUF_INIT
;
949 unsigned char sha1
[20];
951 end_url_with_slash(&buf
, base_url
);
952 strbuf_addstr(&buf
, "objects/info/packs");
953 url
= strbuf_detach(&buf
, NULL
);
955 ret
= http_get_strbuf(url
, &buf
, HTTP_NO_CACHE
);
960 while (i
< buf
.len
) {
964 if (i
+ 52 <= buf
.len
&&
965 !prefixcmp(data
+ i
, " pack-") &&
966 !prefixcmp(data
+ i
+ 46, ".pack\n")) {
967 get_sha1_hex(data
+ i
+ 6, sha1
);
968 fetch_and_setup_pack_index(packs_head
, sha1
,
974 while (i
< buf
.len
&& data
[i
] != '\n')
985 void release_http_pack_request(struct http_pack_request
*preq
)
987 if (preq
->packfile
!= NULL
) {
988 fclose(preq
->packfile
);
989 preq
->packfile
= NULL
;
990 preq
->slot
->local
= NULL
;
992 if (preq
->range_header
!= NULL
) {
993 curl_slist_free_all(preq
->range_header
);
994 preq
->range_header
= NULL
;
1000 int finish_http_pack_request(struct http_pack_request
*preq
)
1002 struct packed_git
**lst
;
1003 struct packed_git
*p
= preq
->target
;
1005 struct child_process ip
;
1006 const char *ip_argv
[8];
1008 close_pack_index(p
);
1010 fclose(preq
->packfile
);
1011 preq
->packfile
= NULL
;
1012 preq
->slot
->local
= NULL
;
1016 lst
= &((*lst
)->next
);
1017 *lst
= (*lst
)->next
;
1019 tmp_idx
= xstrdup(preq
->tmpfile
);
1020 strcpy(tmp_idx
+ strlen(tmp_idx
) - strlen(".pack.temp"),
1023 ip_argv
[0] = "index-pack";
1025 ip_argv
[2] = tmp_idx
;
1026 ip_argv
[3] = preq
->tmpfile
;
1029 memset(&ip
, 0, sizeof(ip
));
1035 if (run_command(&ip
)) {
1036 unlink(preq
->tmpfile
);
1042 unlink(sha1_pack_index_name(p
->sha1
));
1044 if (move_temp_to_file(preq
->tmpfile
, sha1_pack_name(p
->sha1
))
1045 || move_temp_to_file(tmp_idx
, sha1_pack_index_name(p
->sha1
))) {
1050 install_packed_git(p
);
1055 struct http_pack_request
*new_http_pack_request(
1056 struct packed_git
*target
, const char *base_url
)
1060 char range
[RANGE_HEADER_SIZE
];
1061 struct strbuf buf
= STRBUF_INIT
;
1062 struct http_pack_request
*preq
;
1064 preq
= xmalloc(sizeof(*preq
));
1065 preq
->target
= target
;
1066 preq
->range_header
= NULL
;
1068 end_url_with_slash(&buf
, base_url
);
1069 strbuf_addf(&buf
, "objects/pack/pack-%s.pack",
1070 sha1_to_hex(target
->sha1
));
1071 preq
->url
= strbuf_detach(&buf
, NULL
);
1073 filename
= sha1_pack_name(target
->sha1
);
1074 snprintf(preq
->tmpfile
, sizeof(preq
->tmpfile
), "%s.temp", filename
);
1075 preq
->packfile
= fopen(preq
->tmpfile
, "a");
1076 if (!preq
->packfile
) {
1077 error("Unable to open local file %s for pack",
1082 preq
->slot
= get_active_slot();
1083 preq
->slot
->local
= preq
->packfile
;
1084 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_FILE
, preq
->packfile
);
1085 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite
);
1086 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_URL
, preq
->url
);
1087 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_HTTPHEADER
,
1091 * If there is data present from a previous transfer attempt,
1092 * resume where it left off
1094 prev_posn
= ftell(preq
->packfile
);
1096 if (http_is_verbose
)
1098 "Resuming fetch of pack %s at byte %ld\n",
1099 sha1_to_hex(target
->sha1
), prev_posn
);
1100 sprintf(range
, "Range: bytes=%ld-", prev_posn
);
1101 preq
->range_header
= curl_slist_append(NULL
, range
);
1102 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_HTTPHEADER
,
1103 preq
->range_header
);
1114 /* Helpers for fetching objects (loose) */
1115 static size_t fwrite_sha1_file(void *ptr
, size_t eltsize
, size_t nmemb
,
1118 unsigned char expn
[4096];
1119 size_t size
= eltsize
* nmemb
;
1121 struct http_object_request
*freq
=
1122 (struct http_object_request
*)data
;
1124 ssize_t retval
= xwrite(freq
->localfile
,
1125 (char *) ptr
+ posn
, size
- posn
);
1129 } while (posn
< size
);
1131 freq
->stream
.avail_in
= size
;
1132 freq
->stream
.next_in
= ptr
;
1134 freq
->stream
.next_out
= expn
;
1135 freq
->stream
.avail_out
= sizeof(expn
);
1136 freq
->zret
= git_inflate(&freq
->stream
, Z_SYNC_FLUSH
);
1137 git_SHA1_Update(&freq
->c
, expn
,
1138 sizeof(expn
) - freq
->stream
.avail_out
);
1139 } while (freq
->stream
.avail_in
&& freq
->zret
== Z_OK
);
1144 struct http_object_request
*new_http_object_request(const char *base_url
,
1145 unsigned char *sha1
)
1147 char *hex
= sha1_to_hex(sha1
);
1149 char prevfile
[PATH_MAX
];
1151 unsigned char prev_buf
[PREV_BUF_SIZE
];
1152 ssize_t prev_read
= 0;
1154 char range
[RANGE_HEADER_SIZE
];
1155 struct curl_slist
*range_header
= NULL
;
1156 struct http_object_request
*freq
;
1158 freq
= xmalloc(sizeof(*freq
));
1159 hashcpy(freq
->sha1
, sha1
);
1160 freq
->localfile
= -1;
1162 filename
= sha1_file_name(sha1
);
1163 snprintf(freq
->tmpfile
, sizeof(freq
->tmpfile
),
1164 "%s.temp", filename
);
1166 snprintf(prevfile
, sizeof(prevfile
), "%s.prev", filename
);
1167 unlink_or_warn(prevfile
);
1168 rename(freq
->tmpfile
, prevfile
);
1169 unlink_or_warn(freq
->tmpfile
);
1171 if (freq
->localfile
!= -1)
1172 error("fd leakage in start: %d", freq
->localfile
);
1173 freq
->localfile
= open(freq
->tmpfile
,
1174 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
1176 * This could have failed due to the "lazy directory creation";
1177 * try to mkdir the last path component.
1179 if (freq
->localfile
< 0 && errno
== ENOENT
) {
1180 char *dir
= strrchr(freq
->tmpfile
, '/');
1183 mkdir(freq
->tmpfile
, 0777);
1186 freq
->localfile
= open(freq
->tmpfile
,
1187 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
1190 if (freq
->localfile
< 0) {
1191 error("Couldn't create temporary file %s: %s",
1192 freq
->tmpfile
, strerror(errno
));
1196 memset(&freq
->stream
, 0, sizeof(freq
->stream
));
1198 git_inflate_init(&freq
->stream
);
1200 git_SHA1_Init(&freq
->c
);
1202 freq
->url
= get_remote_object_url(base_url
, hex
, 0);
1205 * If a previous temp file is present, process what was already
1208 prevlocal
= open(prevfile
, O_RDONLY
);
1209 if (prevlocal
!= -1) {
1211 prev_read
= xread(prevlocal
, prev_buf
, PREV_BUF_SIZE
);
1213 if (fwrite_sha1_file(prev_buf
,
1216 freq
) == prev_read
) {
1217 prev_posn
+= prev_read
;
1222 } while (prev_read
> 0);
1225 unlink_or_warn(prevfile
);
1228 * Reset inflate/SHA1 if there was an error reading the previous temp
1229 * file; also rewind to the beginning of the local file.
1231 if (prev_read
== -1) {
1232 memset(&freq
->stream
, 0, sizeof(freq
->stream
));
1233 git_inflate_init(&freq
->stream
);
1234 git_SHA1_Init(&freq
->c
);
1237 lseek(freq
->localfile
, 0, SEEK_SET
);
1238 if (ftruncate(freq
->localfile
, 0) < 0) {
1239 error("Couldn't truncate temporary file %s: %s",
1240 freq
->tmpfile
, strerror(errno
));
1246 freq
->slot
= get_active_slot();
1248 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FILE
, freq
);
1249 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_sha1_file
);
1250 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_ERRORBUFFER
, freq
->errorstr
);
1251 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_URL
, freq
->url
);
1252 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_HTTPHEADER
, no_pragma_header
);
1255 * If we have successfully processed data from a previous fetch
1256 * attempt, only fetch the data we don't already have.
1259 if (http_is_verbose
)
1261 "Resuming fetch of object %s at byte %ld\n",
1263 sprintf(range
, "Range: bytes=%ld-", prev_posn
);
1264 range_header
= curl_slist_append(range_header
, range
);
1265 curl_easy_setopt(freq
->slot
->curl
,
1266 CURLOPT_HTTPHEADER
, range_header
);
1278 void process_http_object_request(struct http_object_request
*freq
)
1280 if (freq
->slot
== NULL
)
1282 freq
->curl_result
= freq
->slot
->curl_result
;
1283 freq
->http_code
= freq
->slot
->http_code
;
1287 int finish_http_object_request(struct http_object_request
*freq
)
1291 close(freq
->localfile
);
1292 freq
->localfile
= -1;
1294 process_http_object_request(freq
);
1296 if (freq
->http_code
== 416) {
1297 warning("requested range invalid; we may already have all the data.");
1298 } else if (freq
->curl_result
!= CURLE_OK
) {
1299 if (stat(freq
->tmpfile
, &st
) == 0)
1300 if (st
.st_size
== 0)
1301 unlink_or_warn(freq
->tmpfile
);
1305 git_inflate_end(&freq
->stream
);
1306 git_SHA1_Final(freq
->real_sha1
, &freq
->c
);
1307 if (freq
->zret
!= Z_STREAM_END
) {
1308 unlink_or_warn(freq
->tmpfile
);
1311 if (hashcmp(freq
->sha1
, freq
->real_sha1
)) {
1312 unlink_or_warn(freq
->tmpfile
);
1316 move_temp_to_file(freq
->tmpfile
, sha1_file_name(freq
->sha1
));
1318 return freq
->rename
;
1321 void abort_http_object_request(struct http_object_request
*freq
)
1323 unlink_or_warn(freq
->tmpfile
);
1325 release_http_object_request(freq
);
1328 void release_http_object_request(struct http_object_request
*freq
)
1330 if (freq
->localfile
!= -1) {
1331 close(freq
->localfile
);
1332 freq
->localfile
= -1;
1334 if (freq
->url
!= NULL
) {
1338 if (freq
->slot
!= NULL
) {
1339 freq
->slot
->callback_func
= NULL
;
1340 freq
->slot
->callback_data
= NULL
;
1341 release_active_slot(freq
->slot
);