15 static const char http_push_usage[] =
16 "git-http-push [--all] [--force] [--verbose] <remote> [<head>...]\n";
23 #define XML_STATUS_OK 1
24 #define XML_STATUS_ERROR 0
27 #define PREV_BUF_SIZE 4096
28 #define RANGE_HEADER_SIZE 30
31 #define DAV_LOCK "LOCK"
32 #define DAV_MKCOL "MKCOL"
33 #define DAV_MOVE "MOVE"
34 #define DAV_PROPFIND "PROPFIND"
36 #define DAV_UNLOCK "UNLOCK"
37 #define DAV_DELETE "DELETE"
40 #define DAV_PROP_LOCKWR (1u << 0)
41 #define DAV_PROP_LOCKEX (1u << 1)
42 #define DAV_LOCK_OK (1u << 2)
44 /* DAV XML properties */
45 #define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry"
46 #define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write"
47 #define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive"
48 #define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href"
49 #define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout"
50 #define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href"
51 #define DAV_PROPFIND_RESP ".multistatus.response"
52 #define DAV_PROPFIND_NAME ".multistatus.response.href"
53 #define DAV_PROPFIND_COLLECTION ".multistatus.response.propstat.prop.resourcetype.collection"
55 /* DAV request body templates */
56 #define PROPFIND_SUPPORTEDLOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:prop xmlns:R=\"%s\">\n<D:supportedlock/>\n</D:prop>\n</D:propfind>"
57 #define PROPFIND_ALL_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:allprop/>\n</D:propfind>"
58 #define LOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:lockinfo xmlns:D=\"DAV:\">\n<D:lockscope><D:exclusive/></D:lockscope>\n<D:locktype><D:write/></D:locktype>\n<D:owner>\n<D:href>mailto:%s</D:href>\n</D:owner>\n</D:lockinfo>"
61 #define LOCK_REFRESH 30
63 /* bits #0-15 in revision.h */
65 #define LOCAL (1u<<16)
66 #define REMOTE (1u<<17)
67 #define FETCHING (1u<<18)
68 #define PUSHING (1u<<19)
70 /* We allow "recursive" symbolic refs. Only within reason, though */
73 static int pushing = 0;
74 static int aborted = 0;
75 static signed char remote_dir_exists[256];
77 static struct curl_slist *no_pragma_header;
78 static struct curl_slist *default_headers;
80 static int push_verbosely = 0;
81 static int push_all = 0;
82 static int force_all = 0;
84 static struct object_list *objects = NULL;
91 int can_update_info_refs;
93 struct packed_git *packs;
94 struct remote_lock *locks;
97 static struct repo *remote = NULL;
111 struct transfer_request
116 struct remote_lock *lock;
117 struct curl_slist *headers;
118 struct buffer buffer;
119 char filename[PATH_MAX];
120 char tmpfile[PATH_MAX];
123 enum transfer_state state;
124 CURLcode curl_result;
125 char errorstr[CURL_ERROR_SIZE];
127 unsigned char real_sha1[20];
133 struct active_request_slot *slot;
134 struct transfer_request *next;
137 static struct transfer_request *request_queue_head = NULL;
144 void (*userFunc)(struct xml_ctx *ctx, int tag_closed);
156 struct remote_lock *next;
159 /* Flags that control remote_ls processing */
160 #define PROCESS_FILES (1u << 0)
161 #define PROCESS_DIRS (1u << 1)
162 #define RECURSIVE (1u << 2)
164 /* Flags that remote_ls passes to callback functions */
165 #define IS_DIR (1u << 0)
170 void (*userFunc)(struct remote_ls_ctx *ls);
175 struct remote_ls_ctx *parent;
178 static void finish_request(struct transfer_request *request);
179 static void release_request(struct transfer_request *request);
181 static void process_response(void *callback_data)
183 struct transfer_request *request =
184 (struct transfer_request *)callback_data;
186 finish_request(request);
189 #ifdef USE_CURL_MULTI
190 static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
193 unsigned char expn[4096];
194 size_t size = eltsize * nmemb;
196 struct transfer_request *request = (struct transfer_request *)data;
198 ssize_t retval = write(request->local_fileno,
199 ptr + posn, size - posn);
203 } while (posn < size);
205 request->stream.avail_in = size;
206 request->stream.next_in = ptr;
208 request->stream.next_out = expn;
209 request->stream.avail_out = sizeof(expn);
210 request->zret = inflate(&request->stream, Z_SYNC_FLUSH);
211 SHA1_Update(&request->c, expn,
212 sizeof(expn) - request->stream.avail_out);
213 } while (request->stream.avail_in && request->zret == Z_OK);
218 static void start_fetch_loose(struct transfer_request *request)
220 char *hex = sha1_to_hex(request->obj->sha1);
222 char prevfile[PATH_MAX];
226 unsigned char prev_buf[PREV_BUF_SIZE];
227 ssize_t prev_read = 0;
229 char range[RANGE_HEADER_SIZE];
230 struct curl_slist *range_header = NULL;
231 struct active_request_slot *slot;
233 filename = sha1_file_name(request->obj->sha1);
234 snprintf(request->filename, sizeof(request->filename), "%s", filename);
235 snprintf(request->tmpfile, sizeof(request->tmpfile),
236 "%s.temp", filename);
238 snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename);
240 rename(request->tmpfile, prevfile);
241 unlink(request->tmpfile);
243 if (request->local_fileno != -1)
244 error("fd leakage in start: %d", request->local_fileno);
245 request->local_fileno = open(request->tmpfile,
246 O_WRONLY | O_CREAT | O_EXCL, 0666);
247 /* This could have failed due to the "lazy directory creation";
248 * try to mkdir the last path component.
250 if (request->local_fileno < 0 && errno == ENOENT) {
251 char *dir = strrchr(request->tmpfile, '/');
254 mkdir(request->tmpfile, 0777);
257 request->local_fileno = open(request->tmpfile,
258 O_WRONLY | O_CREAT | O_EXCL, 0666);
261 if (request->local_fileno < 0) {
262 request->state = ABORTED;
263 error("Couldn't create temporary file %s for %s: %s",
264 request->tmpfile, request->filename, strerror(errno));
268 memset(&request->stream, 0, sizeof(request->stream));
270 inflateInit(&request->stream);
272 SHA1_Init(&request->c);
274 url = xmalloc(strlen(remote->url) + 50);
275 request->url = xmalloc(strlen(remote->url) + 50);
276 strcpy(url, remote->url);
277 posn = url + strlen(remote->url);
278 strcpy(posn, "objects/");
280 memcpy(posn, hex, 2);
283 strcpy(posn, hex + 2);
284 strcpy(request->url, url);
286 /* If a previous temp file is present, process what was already
288 prevlocal = open(prevfile, O_RDONLY);
289 if (prevlocal != -1) {
291 prev_read = read(prevlocal, prev_buf, PREV_BUF_SIZE);
293 if (fwrite_sha1_file(prev_buf,
296 request) == prev_read) {
297 prev_posn += prev_read;
302 } while (prev_read > 0);
307 /* Reset inflate/SHA1 if there was an error reading the previous temp
308 file; also rewind to the beginning of the local file. */
309 if (prev_read == -1) {
310 memset(&request->stream, 0, sizeof(request->stream));
311 inflateInit(&request->stream);
312 SHA1_Init(&request->c);
315 lseek(request->local_fileno, SEEK_SET, 0);
316 ftruncate(request->local_fileno, 0);
320 slot = get_active_slot();
321 slot->callback_func = process_response;
322 slot->callback_data = request;
323 request->slot = slot;
325 curl_easy_setopt(slot->curl, CURLOPT_FILE, request);
326 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
327 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
328 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
329 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
331 /* If we have successfully processed data from a previous fetch
332 attempt, only fetch the data we don't already have. */
336 "Resuming fetch of object %s at byte %ld\n",
338 sprintf(range, "Range: bytes=%ld-", prev_posn);
339 range_header = curl_slist_append(range_header, range);
340 curl_easy_setopt(slot->curl,
341 CURLOPT_HTTPHEADER, range_header);
344 /* Try to get the request started, abort the request on error */
345 request->state = RUN_FETCH_LOOSE;
346 if (!start_active_slot(slot)) {
347 fprintf(stderr, "Unable to start GET request\n");
348 remote->can_update_info_refs = 0;
349 release_request(request);
353 static void start_mkcol(struct transfer_request *request)
355 char *hex = sha1_to_hex(request->obj->sha1);
356 struct active_request_slot *slot;
359 request->url = xmalloc(strlen(remote->url) + 13);
360 strcpy(request->url, remote->url);
361 posn = request->url + strlen(remote->url);
362 strcpy(posn, "objects/");
364 memcpy(posn, hex, 2);
368 slot = get_active_slot();
369 slot->callback_func = process_response;
370 slot->callback_data = request;
371 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
372 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
373 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
374 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
375 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
377 if (start_active_slot(slot)) {
378 request->slot = slot;
379 request->state = RUN_MKCOL;
381 request->state = ABORTED;
388 static void start_fetch_packed(struct transfer_request *request)
391 struct packed_git *target;
395 char range[RANGE_HEADER_SIZE];
396 struct curl_slist *range_header = NULL;
398 struct transfer_request *check_request = request_queue_head;
399 struct active_request_slot *slot;
401 target = find_sha1_pack(request->obj->sha1, remote->packs);
403 fprintf(stderr, "Unable to fetch %s, will not be able to update server info refs\n", sha1_to_hex(request->obj->sha1));
404 remote->can_update_info_refs = 0;
405 release_request(request);
409 fprintf(stderr, "Fetching pack %s\n", sha1_to_hex(target->sha1));
410 fprintf(stderr, " which contains %s\n", sha1_to_hex(request->obj->sha1));
412 filename = sha1_pack_name(target->sha1);
413 snprintf(request->filename, sizeof(request->filename), "%s", filename);
414 snprintf(request->tmpfile, sizeof(request->tmpfile),
415 "%s.temp", filename);
417 url = xmalloc(strlen(remote->url) + 64);
418 sprintf(url, "%sobjects/pack/pack-%s.pack",
419 remote->url, sha1_to_hex(target->sha1));
421 /* Make sure there isn't another open request for this pack */
422 while (check_request) {
423 if (check_request->state == RUN_FETCH_PACKED &&
424 !strcmp(check_request->url, url)) {
426 release_request(request);
429 check_request = check_request->next;
432 packfile = fopen(request->tmpfile, "a");
434 fprintf(stderr, "Unable to open local file %s for pack",
436 remote->can_update_info_refs = 0;
441 slot = get_active_slot();
442 slot->callback_func = process_response;
443 slot->callback_data = request;
444 request->slot = slot;
445 request->local_stream = packfile;
446 request->userData = target;
449 curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile);
450 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
451 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
452 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
453 slot->local = packfile;
455 /* If there is data present from a previous transfer attempt,
456 resume where it left off */
457 prev_posn = ftell(packfile);
461 "Resuming fetch of pack %s at byte %ld\n",
462 sha1_to_hex(target->sha1), prev_posn);
463 sprintf(range, "Range: bytes=%ld-", prev_posn);
464 range_header = curl_slist_append(range_header, range);
465 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
468 /* Try to get the request started, abort the request on error */
469 request->state = RUN_FETCH_PACKED;
470 if (!start_active_slot(slot)) {
471 fprintf(stderr, "Unable to start GET request\n");
472 remote->can_update_info_refs = 0;
473 release_request(request);
477 static void start_put(struct transfer_request *request)
479 char *hex = sha1_to_hex(request->obj->sha1);
480 struct active_request_slot *slot;
490 unpacked = read_sha1_file(request->obj->sha1, type, &len);
491 hdrlen = sprintf(hdr, "%s %lu", type, len) + 1;
494 memset(&stream, 0, sizeof(stream));
495 deflateInit(&stream, Z_BEST_COMPRESSION);
496 size = deflateBound(&stream, len + hdrlen);
497 request->buffer.buffer = xmalloc(size);
500 stream.next_out = request->buffer.buffer;
501 stream.avail_out = size;
504 stream.next_in = (void *)hdr;
505 stream.avail_in = hdrlen;
506 while (deflate(&stream, 0) == Z_OK)
509 /* Then the data itself.. */
510 stream.next_in = unpacked;
511 stream.avail_in = len;
512 while (deflate(&stream, Z_FINISH) == Z_OK)
517 request->buffer.size = stream.total_out;
518 request->buffer.posn = 0;
520 request->url = xmalloc(strlen(remote->url) +
521 strlen(request->lock->token) + 51);
522 strcpy(request->url, remote->url);
523 posn = request->url + strlen(remote->url);
524 strcpy(posn, "objects/");
526 memcpy(posn, hex, 2);
529 strcpy(posn, hex + 2);
530 request->dest = xmalloc(strlen(request->url) + 14);
531 sprintf(request->dest, "Destination: %s", request->url);
534 strcpy(posn, request->lock->token);
536 slot = get_active_slot();
537 slot->callback_func = process_response;
538 slot->callback_data = request;
539 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer);
540 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.size);
541 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
542 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
543 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
544 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
545 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
546 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
547 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
549 if (start_active_slot(slot)) {
550 request->slot = slot;
551 request->state = RUN_PUT;
553 request->state = ABORTED;
559 static void start_move(struct transfer_request *request)
561 struct active_request_slot *slot;
562 struct curl_slist *dav_headers = NULL;
564 slot = get_active_slot();
565 slot->callback_func = process_response;
566 slot->callback_data = request;
567 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
568 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MOVE);
569 dav_headers = curl_slist_append(dav_headers, request->dest);
570 dav_headers = curl_slist_append(dav_headers, "Overwrite: T");
571 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
572 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
573 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
575 if (start_active_slot(slot)) {
576 request->slot = slot;
577 request->state = RUN_MOVE;
579 request->state = ABORTED;
585 static int refresh_lock(struct remote_lock *lock)
587 struct active_request_slot *slot;
588 struct slot_results results;
590 char timeout_header[25];
591 struct curl_slist *dav_headers = NULL;
594 lock->refreshing = 1;
596 if_header = xmalloc(strlen(lock->token) + 25);
597 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
598 sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout);
599 dav_headers = curl_slist_append(dav_headers, if_header);
600 dav_headers = curl_slist_append(dav_headers, timeout_header);
602 slot = get_active_slot();
603 slot->results = &results;
604 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
605 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
606 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
607 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
608 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
610 if (start_active_slot(slot)) {
611 run_active_slot(slot);
612 if (results.curl_result != CURLE_OK) {
613 fprintf(stderr, "LOCK HTTP error %ld\n",
616 lock->start_time = time(NULL);
621 lock->refreshing = 0;
622 curl_slist_free_all(dav_headers);
628 static void check_locks(void)
630 struct remote_lock *lock = remote->locks;
631 time_t current_time = time(NULL);
635 time_remaining = lock->start_time + lock->timeout -
637 if (!lock->refreshing && time_remaining < LOCK_REFRESH) {
638 if (!refresh_lock(lock)) {
640 "Unable to refresh lock for %s\n",
650 static void release_request(struct transfer_request *request)
652 struct transfer_request *entry = request_queue_head;
654 if (request == request_queue_head) {
655 request_queue_head = request->next;
657 while (entry->next != NULL && entry->next != request)
659 if (entry->next == request)
660 entry->next = entry->next->next;
663 if (request->local_fileno != -1)
664 close(request->local_fileno);
665 if (request->local_stream)
666 fclose(request->local_stream);
667 if (request->url != NULL)
672 static void finish_request(struct transfer_request *request)
675 struct packed_git *target;
676 struct packed_git **lst;
678 request->curl_result = request->slot->curl_result;
679 request->http_code = request->slot->http_code;
680 request->slot = NULL;
682 /* Keep locks active */
685 if (request->headers != NULL)
686 curl_slist_free_all(request->headers);
688 /* URL is reused for MOVE after PUT */
689 if (request->state != RUN_PUT) {
694 if (request->state == RUN_MKCOL) {
695 if (request->curl_result == CURLE_OK ||
696 request->http_code == 405) {
697 remote_dir_exists[request->obj->sha1[0]] = 1;
700 fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n",
701 sha1_to_hex(request->obj->sha1),
702 request->curl_result, request->http_code);
703 request->state = ABORTED;
706 } else if (request->state == RUN_PUT) {
707 if (request->curl_result == CURLE_OK) {
710 fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n",
711 sha1_to_hex(request->obj->sha1),
712 request->curl_result, request->http_code);
713 request->state = ABORTED;
716 } else if (request->state == RUN_MOVE) {
717 if (request->curl_result == CURLE_OK) {
719 fprintf(stderr, " sent %s\n",
720 sha1_to_hex(request->obj->sha1));
721 request->obj->flags |= REMOTE;
722 release_request(request);
724 fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n",
725 sha1_to_hex(request->obj->sha1),
726 request->curl_result, request->http_code);
727 request->state = ABORTED;
730 } else if (request->state == RUN_FETCH_LOOSE) {
731 fchmod(request->local_fileno, 0444);
732 close(request->local_fileno); request->local_fileno = -1;
734 if (request->curl_result != CURLE_OK &&
735 request->http_code != 416) {
736 if (stat(request->tmpfile, &st) == 0) {
738 unlink(request->tmpfile);
741 if (request->http_code == 416)
742 fprintf(stderr, "Warning: requested range invalid; we may already have all the data.\n");
744 inflateEnd(&request->stream);
745 SHA1_Final(request->real_sha1, &request->c);
746 if (request->zret != Z_STREAM_END) {
747 unlink(request->tmpfile);
748 } else if (memcmp(request->obj->sha1, request->real_sha1, 20)) {
749 unlink(request->tmpfile);
755 if (request->rename == 0) {
756 request->obj->flags |= (LOCAL | REMOTE);
761 /* Try fetching packed if necessary */
762 if (request->obj->flags & LOCAL)
763 release_request(request);
765 start_fetch_packed(request);
767 } else if (request->state == RUN_FETCH_PACKED) {
768 if (request->curl_result != CURLE_OK) {
769 fprintf(stderr, "Unable to get pack file %s\n%s",
770 request->url, curl_errorstr);
771 remote->can_update_info_refs = 0;
773 fclose(request->local_stream);
774 request->local_stream = NULL;
775 if (!move_temp_to_file(request->tmpfile,
776 request->filename)) {
777 target = (struct packed_git *)request->userData;
778 lst = &remote->packs;
779 while (*lst != target)
780 lst = &((*lst)->next);
783 if (!verify_pack(target, 0))
784 install_packed_git(target);
786 remote->can_update_info_refs = 0;
789 release_request(request);
793 #ifdef USE_CURL_MULTI
794 void fill_active_slots(void)
796 struct transfer_request *request = request_queue_head;
797 struct transfer_request *next;
798 struct active_request_slot *slot = active_queue_head;
804 while (active_requests < max_requests && request != NULL) {
805 next = request->next;
806 if (request->state == NEED_FETCH) {
807 start_fetch_loose(request);
808 } else if (pushing && request->state == NEED_PUSH) {
809 if (remote_dir_exists[request->obj->sha1[0]] == 1) {
812 start_mkcol(request);
814 curl_multi_perform(curlm, &num_transfers);
819 while (slot != NULL) {
820 if (!slot->in_use && slot->curl != NULL) {
821 curl_easy_cleanup(slot->curl);
829 static void get_remote_object_list(unsigned char parent);
831 static void add_fetch_request(struct object *obj)
833 struct transfer_request *request;
838 * Don't fetch the object if it's known to exist locally
839 * or is already in the request queue
841 if (remote_dir_exists[obj->sha1[0]] == -1)
842 get_remote_object_list(obj->sha1[0]);
843 if (obj->flags & (LOCAL | FETCHING))
846 obj->flags |= FETCHING;
847 request = xmalloc(sizeof(*request));
850 request->lock = NULL;
851 request->headers = NULL;
852 request->local_fileno = -1;
853 request->local_stream = NULL;
854 request->state = NEED_FETCH;
855 request->next = request_queue_head;
856 request_queue_head = request;
858 #ifdef USE_CURL_MULTI
864 static int add_send_request(struct object *obj, struct remote_lock *lock)
866 struct transfer_request *request = request_queue_head;
867 struct packed_git *target;
869 /* Keep locks active */
873 * Don't push the object if it's known to exist on the remote
874 * or is already in the request queue
876 if (remote_dir_exists[obj->sha1[0]] == -1)
877 get_remote_object_list(obj->sha1[0]);
878 if (obj->flags & (REMOTE | PUSHING))
880 target = find_sha1_pack(obj->sha1, remote->packs);
882 obj->flags |= REMOTE;
886 obj->flags |= PUSHING;
887 request = xmalloc(sizeof(*request));
890 request->lock = lock;
891 request->headers = NULL;
892 request->local_fileno = -1;
893 request->local_stream = NULL;
894 request->state = NEED_PUSH;
895 request->next = request_queue_head;
896 request_queue_head = request;
898 #ifdef USE_CURL_MULTI
906 static int fetch_index(unsigned char *sha1)
908 char *hex = sha1_to_hex(sha1);
911 char tmpfile[PATH_MAX];
913 char range[RANGE_HEADER_SIZE];
914 struct curl_slist *range_header = NULL;
917 struct active_request_slot *slot;
918 struct slot_results results;
920 /* Don't use the index if the pack isn't there */
921 url = xmalloc(strlen(remote->url) + 64);
922 sprintf(url, "%sobjects/pack/pack-%s.pack", remote->url, hex);
923 slot = get_active_slot();
924 slot->results = &results;
925 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
926 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
927 if (start_active_slot(slot)) {
928 run_active_slot(slot);
929 if (results.curl_result != CURLE_OK) {
931 return error("Unable to verify pack %s is available",
935 return error("Unable to start request");
938 if (has_pack_index(sha1))
942 fprintf(stderr, "Getting index for pack %s\n", hex);
944 sprintf(url, "%sobjects/pack/pack-%s.idx", remote->url, hex);
946 filename = sha1_pack_index_name(sha1);
947 snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
948 indexfile = fopen(tmpfile, "a");
950 return error("Unable to open local file %s for pack index",
953 slot = get_active_slot();
954 slot->results = &results;
955 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
956 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
957 curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile);
958 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
959 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
960 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
961 slot->local = indexfile;
963 /* If there is data present from a previous transfer attempt,
964 resume where it left off */
965 prev_posn = ftell(indexfile);
969 "Resuming fetch of index for pack %s at byte %ld\n",
971 sprintf(range, "Range: bytes=%ld-", prev_posn);
972 range_header = curl_slist_append(range_header, range);
973 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
976 if (start_active_slot(slot)) {
977 run_active_slot(slot);
978 if (results.curl_result != CURLE_OK) {
981 return error("Unable to get pack index %s\n%s", url,
987 return error("Unable to start request");
993 return move_temp_to_file(tmpfile, filename);
996 static int setup_index(unsigned char *sha1)
998 struct packed_git *new_pack;
1000 if (fetch_index(sha1))
1003 new_pack = parse_pack_index(sha1);
1004 new_pack->next = remote->packs;
1005 remote->packs = new_pack;
1009 static int fetch_indices(void)
1011 unsigned char sha1[20];
1013 struct buffer buffer;
1017 struct active_request_slot *slot;
1018 struct slot_results results;
1020 data = xcalloc(1, 4096);
1023 buffer.buffer = data;
1026 fprintf(stderr, "Getting pack list\n");
1028 url = xmalloc(strlen(remote->url) + 20);
1029 sprintf(url, "%sobjects/info/packs", remote->url);
1031 slot = get_active_slot();
1032 slot->results = &results;
1033 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
1034 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1035 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1036 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
1037 if (start_active_slot(slot)) {
1038 run_active_slot(slot);
1039 if (results.curl_result != CURLE_OK) {
1040 free(buffer.buffer);
1042 if (results.http_code == 404)
1045 return error("%s", curl_errorstr);
1048 free(buffer.buffer);
1050 return error("Unable to start request");
1054 data = buffer.buffer;
1055 while (i < buffer.posn) {
1059 if (i + 52 < buffer.posn &&
1060 !strncmp(data + i, " pack-", 6) &&
1061 !strncmp(data + i + 46, ".pack\n", 6)) {
1062 get_sha1_hex(data + i + 6, sha1);
1068 while (data[i] != '\n')
1074 free(buffer.buffer);
1078 static inline int needs_quote(int ch)
1081 case '/': case '-': case '.':
1082 case 'A'...'Z': case 'a'...'z': case '0'...'9':
1089 static inline int hex(int v)
1091 if (v < 10) return '0' + v;
1092 else return 'A' + v - 10;
1095 static char *quote_ref_url(const char *base, const char *ref)
1099 int len, baselen, ch;
1101 baselen = strlen(base);
1103 for (cp = ref; (ch = *cp) != 0; cp++, len++)
1104 if (needs_quote(ch))
1105 len += 2; /* extra two hex plus replacement % */
1106 qref = xmalloc(len);
1107 memcpy(qref, base, baselen);
1108 for (cp = ref, dp = qref + baselen; (ch = *cp) != 0; cp++) {
1109 if (needs_quote(ch)) {
1111 *dp++ = hex((ch >> 4) & 0xF);
1112 *dp++ = hex(ch & 0xF);
1122 int fetch_ref(char *ref, unsigned char *sha1)
1126 struct buffer buffer;
1127 char *base = remote->url;
1128 struct active_request_slot *slot;
1129 struct slot_results results;
1132 buffer.buffer = hex;
1135 url = quote_ref_url(base, ref);
1136 slot = get_active_slot();
1137 slot->results = &results;
1138 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
1139 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1140 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
1141 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1142 if (start_active_slot(slot)) {
1143 run_active_slot(slot);
1144 if (results.curl_result != CURLE_OK)
1145 return error("Couldn't get %s for %s\n%s",
1146 url, ref, curl_errorstr);
1148 return error("Unable to start request");
1152 get_sha1_hex(hex, sha1);
1156 static void one_remote_object(const char *hex)
1158 unsigned char sha1[20];
1161 if (get_sha1_hex(hex, sha1) != 0)
1164 obj = lookup_object(sha1);
1166 obj = parse_object(sha1);
1168 /* Ignore remote objects that don't exist locally */
1172 obj->flags |= REMOTE;
1173 if (!object_list_contains(objects, obj))
1174 add_object(obj, &objects, NULL, "");
1177 static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
1179 int *lock_flags = (int *)ctx->userData;
1182 if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) {
1183 if ((*lock_flags & DAV_PROP_LOCKEX) &&
1184 (*lock_flags & DAV_PROP_LOCKWR)) {
1185 *lock_flags |= DAV_LOCK_OK;
1187 *lock_flags &= DAV_LOCK_OK;
1188 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) {
1189 *lock_flags |= DAV_PROP_LOCKWR;
1190 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) {
1191 *lock_flags |= DAV_PROP_LOCKEX;
1196 static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
1198 struct remote_lock *lock = (struct remote_lock *)ctx->userData;
1200 if (tag_closed && ctx->cdata) {
1201 if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
1202 lock->owner = xmalloc(strlen(ctx->cdata) + 1);
1203 strcpy(lock->owner, ctx->cdata);
1204 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) {
1205 if (!strncmp(ctx->cdata, "Second-", 7))
1207 strtol(ctx->cdata + 7, NULL, 10);
1208 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
1209 if (!strncmp(ctx->cdata, "opaquelocktoken:", 16)) {
1210 lock->token = xmalloc(strlen(ctx->cdata) - 15);
1211 strcpy(lock->token, ctx->cdata + 16);
1217 static void one_remote_ref(char *refname);
1220 xml_start_tag(void *userData, const char *name, const char **atts)
1222 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1223 const char *c = strchr(name, ':');
1231 new_len = strlen(ctx->name) + strlen(c) + 2;
1233 if (new_len > ctx->len) {
1234 ctx->name = xrealloc(ctx->name, new_len);
1237 strcat(ctx->name, ".");
1238 strcat(ctx->name, c);
1245 ctx->userFunc(ctx, 0);
1249 xml_end_tag(void *userData, const char *name)
1251 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1252 const char *c = strchr(name, ':');
1255 ctx->userFunc(ctx, 1);
1262 ep = ctx->name + strlen(ctx->name) - strlen(c) - 1;
1267 xml_cdata(void *userData, const XML_Char *s, int len)
1269 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1272 ctx->cdata = xmalloc(len + 1);
1273 safe_strncpy(ctx->cdata, s, len + 1);
1276 static struct remote_lock *lock_remote(char *path, long timeout)
1278 struct active_request_slot *slot;
1279 struct slot_results results;
1280 struct buffer out_buffer;
1281 struct buffer in_buffer;
1286 char timeout_header[25];
1287 struct remote_lock *lock = NULL;
1288 XML_Parser parser = XML_ParserCreate(NULL);
1289 enum XML_Status result;
1290 struct curl_slist *dav_headers = NULL;
1293 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
1294 sprintf(url, "%s%s", remote->url, path);
1296 /* Make sure leading directories exist for the remote ref */
1297 ep = strchr(url + strlen(remote->url) + 11, '/');
1300 slot = get_active_slot();
1301 slot->results = &results;
1302 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1303 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1304 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
1305 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1306 if (start_active_slot(slot)) {
1307 run_active_slot(slot);
1308 if (results.curl_result != CURLE_OK &&
1309 results.http_code != 405) {
1311 "Unable to create branch path %s\n",
1317 fprintf(stderr, "Unable to start MKCOL request\n");
1322 ep = strchr(ep + 1, '/');
1325 out_buffer.size = strlen(LOCK_REQUEST) + strlen(git_default_email) - 2;
1326 out_data = xmalloc(out_buffer.size + 1);
1327 snprintf(out_data, out_buffer.size + 1, LOCK_REQUEST, git_default_email);
1328 out_buffer.posn = 0;
1329 out_buffer.buffer = out_data;
1331 in_buffer.size = 4096;
1332 in_data = xmalloc(in_buffer.size);
1334 in_buffer.buffer = in_data;
1336 sprintf(timeout_header, "Timeout: Second-%ld", timeout);
1337 dav_headers = curl_slist_append(dav_headers, timeout_header);
1338 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1340 slot = get_active_slot();
1341 slot->results = &results;
1342 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1343 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
1344 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1345 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1346 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1347 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1348 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1349 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
1350 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1352 lock = xcalloc(1, sizeof(*lock));
1355 if (start_active_slot(slot)) {
1356 run_active_slot(slot);
1357 if (results.curl_result == CURLE_OK) {
1358 ctx.name = xcalloc(10, 1);
1361 ctx.userFunc = handle_new_lock_ctx;
1362 ctx.userData = lock;
1363 XML_SetUserData(parser, &ctx);
1364 XML_SetElementHandler(parser, xml_start_tag,
1366 XML_SetCharacterDataHandler(parser, xml_cdata);
1367 result = XML_Parse(parser, in_buffer.buffer,
1370 if (result != XML_STATUS_OK) {
1371 fprintf(stderr, "XML error: %s\n",
1373 XML_GetErrorCode(parser)));
1378 fprintf(stderr, "Unable to start LOCK request\n");
1381 curl_slist_free_all(dav_headers);
1385 if (lock->token == NULL || lock->timeout <= 0) {
1386 if (lock->token != NULL)
1388 if (lock->owner != NULL)
1395 lock->start_time = time(NULL);
1396 lock->next = remote->locks;
1397 remote->locks = lock;
1403 static int unlock_remote(struct remote_lock *lock)
1405 struct active_request_slot *slot;
1406 struct slot_results results;
1407 struct remote_lock *prev = remote->locks;
1408 char *lock_token_header;
1409 struct curl_slist *dav_headers = NULL;
1412 lock_token_header = xmalloc(strlen(lock->token) + 31);
1413 sprintf(lock_token_header, "Lock-Token: <opaquelocktoken:%s>",
1415 dav_headers = curl_slist_append(dav_headers, lock_token_header);
1417 slot = get_active_slot();
1418 slot->results = &results;
1419 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1420 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1421 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK);
1422 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1424 if (start_active_slot(slot)) {
1425 run_active_slot(slot);
1426 if (results.curl_result == CURLE_OK)
1429 fprintf(stderr, "UNLOCK HTTP error %ld\n",
1432 fprintf(stderr, "Unable to start UNLOCK request\n");
1435 curl_slist_free_all(dav_headers);
1436 free(lock_token_header);
1438 if (remote->locks == lock) {
1439 remote->locks = lock->next;
1441 while (prev && prev->next != lock)
1444 prev->next = prev->next->next;
1447 if (lock->owner != NULL)
1456 static void remote_ls(const char *path, int flags,
1457 void (*userFunc)(struct remote_ls_ctx *ls),
1460 static void process_ls_object(struct remote_ls_ctx *ls)
1462 unsigned int *parent = (unsigned int *)ls->userData;
1463 char *path = ls->dentry_name;
1466 if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) {
1467 remote_dir_exists[*parent] = 1;
1471 if (strlen(path) != 49)
1474 obj_hex = xmalloc(strlen(path));
1475 safe_strncpy(obj_hex, path, 3);
1476 strcpy(obj_hex + 2, path + 3);
1477 one_remote_object(obj_hex);
1481 static void process_ls_ref(struct remote_ls_ctx *ls)
1483 if (!strcmp(ls->path, ls->dentry_name) && (ls->dentry_flags & IS_DIR)) {
1484 fprintf(stderr, " %s\n", ls->dentry_name);
1488 if (!(ls->dentry_flags & IS_DIR))
1489 one_remote_ref(ls->dentry_name);
1492 static void handle_remote_ls_ctx(struct xml_ctx *ctx, int tag_closed)
1494 struct remote_ls_ctx *ls = (struct remote_ls_ctx *)ctx->userData;
1497 if (!strcmp(ctx->name, DAV_PROPFIND_RESP) && ls->dentry_name) {
1498 if (ls->dentry_flags & IS_DIR) {
1499 if (ls->flags & PROCESS_DIRS) {
1502 if (strcmp(ls->dentry_name, ls->path) &&
1503 ls->flags & RECURSIVE) {
1504 remote_ls(ls->dentry_name,
1509 } else if (ls->flags & PROCESS_FILES) {
1512 } else if (!strcmp(ctx->name, DAV_PROPFIND_NAME) && ctx->cdata) {
1513 ls->dentry_name = xmalloc(strlen(ctx->cdata) -
1514 remote->path_len + 1);
1515 strcpy(ls->dentry_name, ctx->cdata + remote->path_len);
1516 } else if (!strcmp(ctx->name, DAV_PROPFIND_COLLECTION)) {
1517 ls->dentry_flags |= IS_DIR;
1519 } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
1520 if (ls->dentry_name) {
1521 free(ls->dentry_name);
1523 ls->dentry_name = NULL;
1524 ls->dentry_flags = 0;
1528 static void remote_ls(const char *path, int flags,
1529 void (*userFunc)(struct remote_ls_ctx *ls),
1532 char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
1533 struct active_request_slot *slot;
1534 struct slot_results results;
1535 struct buffer in_buffer;
1536 struct buffer out_buffer;
1539 XML_Parser parser = XML_ParserCreate(NULL);
1540 enum XML_Status result;
1541 struct curl_slist *dav_headers = NULL;
1543 struct remote_ls_ctx ls;
1546 ls.path = strdup(path);
1547 ls.dentry_name = NULL;
1548 ls.dentry_flags = 0;
1549 ls.userData = userData;
1550 ls.userFunc = userFunc;
1552 sprintf(url, "%s%s", remote->url, path);
1554 out_buffer.size = strlen(PROPFIND_ALL_REQUEST);
1555 out_data = xmalloc(out_buffer.size + 1);
1556 snprintf(out_data, out_buffer.size + 1, PROPFIND_ALL_REQUEST);
1557 out_buffer.posn = 0;
1558 out_buffer.buffer = out_data;
1560 in_buffer.size = 4096;
1561 in_data = xmalloc(in_buffer.size);
1563 in_buffer.buffer = in_data;
1565 dav_headers = curl_slist_append(dav_headers, "Depth: 1");
1566 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1568 slot = get_active_slot();
1569 slot->results = &results;
1570 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1571 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
1572 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1573 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1574 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1575 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1576 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1577 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1578 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1580 if (start_active_slot(slot)) {
1581 run_active_slot(slot);
1582 if (results.curl_result == CURLE_OK) {
1583 ctx.name = xcalloc(10, 1);
1586 ctx.userFunc = handle_remote_ls_ctx;
1588 XML_SetUserData(parser, &ctx);
1589 XML_SetElementHandler(parser, xml_start_tag,
1591 XML_SetCharacterDataHandler(parser, xml_cdata);
1592 result = XML_Parse(parser, in_buffer.buffer,
1596 if (result != XML_STATUS_OK) {
1597 fprintf(stderr, "XML error: %s\n",
1599 XML_GetErrorCode(parser)));
1603 fprintf(stderr, "Unable to start PROPFIND request\n");
1609 free(in_buffer.buffer);
1610 curl_slist_free_all(dav_headers);
1613 static void get_remote_object_list(unsigned char parent)
1615 char path[] = "objects/XX/";
1616 static const char hex[] = "0123456789abcdef";
1617 unsigned int val = parent;
1619 path[8] = hex[val >> 4];
1620 path[9] = hex[val & 0xf];
1621 remote_dir_exists[val] = 0;
1622 remote_ls(path, (PROCESS_FILES | PROCESS_DIRS),
1623 process_ls_object, &val);
1626 static int locking_available(void)
1628 struct active_request_slot *slot;
1629 struct slot_results results;
1630 struct buffer in_buffer;
1631 struct buffer out_buffer;
1634 XML_Parser parser = XML_ParserCreate(NULL);
1635 enum XML_Status result;
1636 struct curl_slist *dav_headers = NULL;
1641 strlen(PROPFIND_SUPPORTEDLOCK_REQUEST) +
1642 strlen(remote->url) - 2;
1643 out_data = xmalloc(out_buffer.size + 1);
1644 snprintf(out_data, out_buffer.size + 1,
1645 PROPFIND_SUPPORTEDLOCK_REQUEST, remote->url);
1646 out_buffer.posn = 0;
1647 out_buffer.buffer = out_data;
1649 in_buffer.size = 4096;
1650 in_data = xmalloc(in_buffer.size);
1652 in_buffer.buffer = in_data;
1654 dav_headers = curl_slist_append(dav_headers, "Depth: 0");
1655 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1657 slot = get_active_slot();
1658 slot->results = &results;
1659 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1660 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
1661 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1662 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1663 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1664 curl_easy_setopt(slot->curl, CURLOPT_URL, remote->url);
1665 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1666 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1667 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1669 if (start_active_slot(slot)) {
1670 run_active_slot(slot);
1671 if (results.curl_result == CURLE_OK) {
1672 ctx.name = xcalloc(10, 1);
1675 ctx.userFunc = handle_lockprop_ctx;
1676 ctx.userData = &lock_flags;
1677 XML_SetUserData(parser, &ctx);
1678 XML_SetElementHandler(parser, xml_start_tag,
1680 result = XML_Parse(parser, in_buffer.buffer,
1684 if (result != XML_STATUS_OK) {
1685 fprintf(stderr, "XML error: %s\n",
1687 XML_GetErrorCode(parser)));
1692 fprintf(stderr, "Unable to start PROPFIND request\n");
1696 free(in_buffer.buffer);
1697 curl_slist_free_all(dav_headers);
1702 static struct object_list **process_blob(struct blob *blob,
1703 struct object_list **p,
1704 struct name_path *path,
1707 struct object *obj = &blob->object;
1709 obj->flags |= LOCAL;
1711 if (obj->flags & (UNINTERESTING | SEEN))
1715 name = strdup(name);
1716 return add_object(obj, p, path, name);
1719 static struct object_list **process_tree(struct tree *tree,
1720 struct object_list **p,
1721 struct name_path *path,
1724 struct object *obj = &tree->object;
1725 struct tree_desc desc;
1726 struct name_entry entry;
1727 struct name_path me;
1729 obj->flags |= LOCAL;
1731 if (obj->flags & (UNINTERESTING | SEEN))
1733 if (parse_tree(tree) < 0)
1734 die("bad tree object %s", sha1_to_hex(obj->sha1));
1737 name = strdup(name);
1738 p = add_object(obj, p, NULL, name);
1741 me.elem_len = strlen(name);
1743 desc.buf = tree->buffer;
1744 desc.size = tree->size;
1746 while (tree_entry(&desc, &entry)) {
1747 if (S_ISDIR(entry.mode))
1748 p = process_tree(lookup_tree(entry.sha1), p, &me, name);
1750 p = process_blob(lookup_blob(entry.sha1), p, &me, name);
1753 tree->buffer = NULL;
1757 static int get_delta(struct rev_info *revs, struct remote_lock *lock)
1759 struct commit *commit;
1760 struct object_list **p = &objects, *pending;
1763 while ((commit = get_revision(revs)) != NULL) {
1764 p = process_tree(commit->tree, p, NULL, "");
1765 commit->object.flags |= LOCAL;
1766 if (!(commit->object.flags & UNINTERESTING))
1767 count += add_send_request(&commit->object, lock);
1770 for (pending = revs->pending_objects; pending; pending = pending->next) {
1771 struct object *obj = pending->item;
1772 const char *name = pending->name;
1774 if (obj->flags & (UNINTERESTING | SEEN))
1776 if (obj->type == TYPE_TAG) {
1778 p = add_object(obj, p, NULL, name);
1781 if (obj->type == TYPE_TREE) {
1782 p = process_tree((struct tree *)obj, p, NULL, name);
1785 if (obj->type == TYPE_BLOB) {
1786 p = process_blob((struct blob *)obj, p, NULL, name);
1789 die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
1793 if (!(objects->item->flags & UNINTERESTING))
1794 count += add_send_request(objects->item, lock);
1795 objects = objects->next;
1801 static int update_remote(unsigned char *sha1, struct remote_lock *lock)
1803 struct active_request_slot *slot;
1804 struct slot_results results;
1807 struct buffer out_buffer;
1808 struct curl_slist *dav_headers = NULL;
1811 if_header = xmalloc(strlen(lock->token) + 25);
1812 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
1813 dav_headers = curl_slist_append(dav_headers, if_header);
1815 out_buffer.size = 41;
1816 out_data = xmalloc(out_buffer.size + 1);
1817 i = snprintf(out_data, out_buffer.size + 1, "%s\n", sha1_to_hex(sha1));
1818 if (i != out_buffer.size) {
1819 fprintf(stderr, "Unable to initialize PUT request body\n");
1822 out_buffer.posn = 0;
1823 out_buffer.buffer = out_data;
1825 slot = get_active_slot();
1826 slot->results = &results;
1827 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1828 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
1829 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1830 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1831 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
1832 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1833 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1834 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
1835 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1837 if (start_active_slot(slot)) {
1838 run_active_slot(slot);
1841 if (results.curl_result != CURLE_OK) {
1843 "PUT error: curl result=%d, HTTP code=%ld\n",
1844 results.curl_result, results.http_code);
1845 /* We should attempt recovery? */
1851 fprintf(stderr, "Unable to start PUT request\n");
1858 static struct ref *local_refs, **local_tail;
1859 static struct ref *remote_refs, **remote_tail;
1861 static int one_local_ref(const char *refname, const unsigned char *sha1)
1864 int len = strlen(refname) + 1;
1865 ref = xcalloc(1, sizeof(*ref) + len);
1866 memcpy(ref->new_sha1, sha1, 20);
1867 memcpy(ref->name, refname, len);
1869 local_tail = &ref->next;
1873 static void one_remote_ref(char *refname)
1876 unsigned char remote_sha1[20];
1878 int len = strlen(refname) + 1;
1880 if (fetch_ref(refname, remote_sha1) != 0) {
1882 "Unable to fetch ref %s from %s\n",
1883 refname, remote->url);
1888 * Fetch a copy of the object if it doesn't exist locally - it
1889 * may be required for updating server info later.
1891 if (remote->can_update_info_refs && !has_sha1_file(remote_sha1)) {
1892 obj = lookup_unknown_object(remote_sha1);
1894 fprintf(stderr, " fetch %s for %s\n",
1895 sha1_to_hex(remote_sha1), refname);
1896 add_fetch_request(obj);
1900 ref = xcalloc(1, sizeof(*ref) + len);
1901 memcpy(ref->old_sha1, remote_sha1, 20);
1902 memcpy(ref->name, refname, len);
1904 remote_tail = &ref->next;
1907 static void get_local_heads(void)
1909 local_tail = &local_refs;
1910 for_each_ref(one_local_ref);
1913 static void get_dav_remote_heads(void)
1915 remote_tail = &remote_refs;
1916 remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL);
1919 static int is_zero_sha1(const unsigned char *sha1)
1923 for (i = 0; i < 20; i++) {
1930 static void unmark_and_free(struct commit_list *list, unsigned int mark)
1933 struct commit_list *temp = list;
1934 temp->item->object.flags &= ~mark;
1940 static int ref_newer(const unsigned char *new_sha1,
1941 const unsigned char *old_sha1)
1944 struct commit *old, *new;
1945 struct commit_list *list, *used;
1948 /* Both new and old must be commit-ish and new is descendant of
1949 * old. Otherwise we require --force.
1951 o = deref_tag(parse_object(old_sha1), NULL, 0);
1952 if (!o || o->type != TYPE_COMMIT)
1954 old = (struct commit *) o;
1956 o = deref_tag(parse_object(new_sha1), NULL, 0);
1957 if (!o || o->type != TYPE_COMMIT)
1959 new = (struct commit *) o;
1961 if (parse_commit(new) < 0)
1965 commit_list_insert(new, &list);
1967 new = pop_most_recent_commit(&list, TMP_MARK);
1968 commit_list_insert(new, &used);
1974 unmark_and_free(list, TMP_MARK);
1975 unmark_and_free(used, TMP_MARK);
1979 static void mark_edge_parents_uninteresting(struct commit *commit)
1981 struct commit_list *parents;
1983 for (parents = commit->parents; parents; parents = parents->next) {
1984 struct commit *parent = parents->item;
1985 if (!(parent->object.flags & UNINTERESTING))
1987 mark_tree_uninteresting(parent->tree);
1991 static void mark_edges_uninteresting(struct commit_list *list)
1993 for ( ; list; list = list->next) {
1994 struct commit *commit = list->item;
1996 if (commit->object.flags & UNINTERESTING) {
1997 mark_tree_uninteresting(commit->tree);
2000 mark_edge_parents_uninteresting(commit);
2004 static void add_remote_info_ref(struct remote_ls_ctx *ls)
2006 struct buffer *buf = (struct buffer *)ls->userData;
2007 unsigned char remote_sha1[20];
2012 if (fetch_ref(ls->dentry_name, remote_sha1) != 0) {
2014 "Unable to fetch ref %s from %s\n",
2015 ls->dentry_name, remote->url);
2020 o = parse_object(remote_sha1);
2023 "Unable to parse object %s for remote ref %s\n",
2024 sha1_to_hex(remote_sha1), ls->dentry_name);
2029 len = strlen(ls->dentry_name) + 42;
2030 ref_info = xcalloc(len + 1, 1);
2031 sprintf(ref_info, "%s %s\n",
2032 sha1_to_hex(remote_sha1), ls->dentry_name);
2033 fwrite_buffer(ref_info, 1, len, buf);
2036 if (o->type == TYPE_TAG) {
2037 o = deref_tag(o, ls->dentry_name, 0);
2039 len = strlen(ls->dentry_name) + 45;
2040 ref_info = xcalloc(len + 1, 1);
2041 sprintf(ref_info, "%s %s^{}\n",
2042 sha1_to_hex(o->sha1), ls->dentry_name);
2043 fwrite_buffer(ref_info, 1, len, buf);
2049 static void update_remote_info_refs(struct remote_lock *lock)
2051 struct buffer buffer;
2052 struct active_request_slot *slot;
2053 struct slot_results results;
2055 struct curl_slist *dav_headers = NULL;
2057 buffer.buffer = xcalloc(1, 4096);
2060 remote_ls("refs/", (PROCESS_FILES | RECURSIVE),
2061 add_remote_info_ref, &buffer);
2063 if_header = xmalloc(strlen(lock->token) + 25);
2064 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
2065 dav_headers = curl_slist_append(dav_headers, if_header);
2067 slot = get_active_slot();
2068 slot->results = &results;
2069 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &buffer);
2070 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, buffer.posn);
2071 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
2072 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2073 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
2074 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
2075 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
2076 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
2077 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
2081 if (start_active_slot(slot)) {
2082 run_active_slot(slot);
2083 if (results.curl_result != CURLE_OK) {
2085 "PUT error: curl result=%d, HTTP code=%ld\n",
2086 results.curl_result, results.http_code);
2091 free(buffer.buffer);
2094 static int remote_exists(const char *path)
2096 char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
2097 struct active_request_slot *slot;
2098 struct slot_results results;
2100 sprintf(url, "%s%s", remote->url, path);
2102 slot = get_active_slot();
2103 slot->results = &results;
2104 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2105 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
2107 if (start_active_slot(slot)) {
2108 run_active_slot(slot);
2109 if (results.http_code == 404)
2111 else if (results.curl_result == CURLE_OK)
2114 fprintf(stderr, "HEAD HTTP error %ld\n", results.http_code);
2116 fprintf(stderr, "Unable to start HEAD request\n");
2122 static void fetch_symref(char *path, char **symref, unsigned char *sha1)
2125 struct buffer buffer;
2126 struct active_request_slot *slot;
2127 struct slot_results results;
2129 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
2130 sprintf(url, "%s%s", remote->url, path);
2134 buffer.buffer = xmalloc(buffer.size);
2136 slot = get_active_slot();
2137 slot->results = &results;
2138 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
2139 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
2140 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
2141 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2142 if (start_active_slot(slot)) {
2143 run_active_slot(slot);
2144 if (results.curl_result != CURLE_OK) {
2145 die("Couldn't get %s for remote symref\n%s",
2146 url, curl_errorstr);
2149 die("Unable to start remote symref request");
2153 if (*symref != NULL)
2156 memset(sha1, 0, 20);
2158 if (buffer.posn == 0)
2161 /* If it's a symref, set the refname; otherwise try for a sha1 */
2162 if (!strncmp((char *)buffer.buffer, "ref: ", 5)) {
2163 *symref = xmalloc(buffer.posn - 5);
2164 safe_strncpy(*symref, (char *)buffer.buffer + 5, buffer.posn - 5);
2166 get_sha1_hex(buffer.buffer, sha1);
2169 free(buffer.buffer);
2172 static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
2175 pid_t merge_base_pid;
2176 char line[PATH_MAX + 20];
2177 unsigned char merge_sha1[20];
2180 if (pipe(pipe_fd) < 0)
2181 die("Verify merge base: pipe failed");
2183 merge_base_pid = fork();
2184 if (!merge_base_pid) {
2185 static const char *args[] = {
2192 args[2] = strdup(sha1_to_hex(head_sha1));
2193 args[3] = sha1_to_hex(branch_sha1);
2195 dup2(pipe_fd[1], 1);
2198 execv_git_cmd(args);
2199 die("merge-base setup failed");
2201 if (merge_base_pid < 0)
2202 die("merge-base fork failed");
2204 dup2(pipe_fd[0], 0);
2207 while (fgets(line, sizeof(line), stdin) != NULL) {
2208 if (get_sha1_hex(line, merge_sha1))
2209 die("expected sha1, got garbage:\n %s", line);
2210 if (!memcmp(branch_sha1, merge_sha1, 20)) {
2219 static int delete_remote_branch(char *pattern, int force)
2221 struct ref *refs = remote_refs;
2222 struct ref *remote_ref = NULL;
2223 unsigned char head_sha1[20];
2224 char *symref = NULL;
2226 int patlen = strlen(pattern);
2228 struct active_request_slot *slot;
2229 struct slot_results results;
2232 /* Find the remote branch(es) matching the specified branch name */
2233 for (match = 0; refs; refs = refs->next) {
2234 char *name = refs->name;
2235 int namelen = strlen(name);
2236 if (namelen < patlen ||
2237 memcmp(name + namelen - patlen, pattern, patlen))
2239 if (namelen != patlen && name[namelen - patlen - 1] != '/')
2245 return error("No remote branch matches %s", pattern);
2247 return error("More than one remote branch matches %s",
2251 * Remote HEAD must be a symref (not exactly foolproof; a remote
2252 * symlink to a symref will look like a symref)
2254 fetch_symref("HEAD", &symref, head_sha1);
2256 return error("Remote HEAD is not a symref");
2258 /* Remote branch must not be the remote HEAD */
2259 for (i=0; symref && i<MAXDEPTH; i++) {
2260 if (!strcmp(remote_ref->name, symref))
2261 return error("Remote branch %s is the current HEAD",
2263 fetch_symref(symref, &symref, head_sha1);
2266 /* Run extra sanity checks if delete is not forced */
2268 /* Remote HEAD must resolve to a known object */
2270 return error("Remote HEAD symrefs too deep");
2271 if (is_zero_sha1(head_sha1))
2272 return error("Unable to resolve remote HEAD");
2273 if (!has_sha1_file(head_sha1))
2274 return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", sha1_to_hex(head_sha1));
2276 /* Remote branch must resolve to a known object */
2277 if (is_zero_sha1(remote_ref->old_sha1))
2278 return error("Unable to resolve remote branch %s",
2280 if (!has_sha1_file(remote_ref->old_sha1))
2281 return error("Remote branch %s resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", remote_ref->name, sha1_to_hex(remote_ref->old_sha1));
2283 /* Remote branch must be an ancestor of remote HEAD */
2284 if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
2285 return error("The branch '%s' is not a strict subset of your current HEAD.\nIf you are sure you want to delete it, run:\n\t'git http-push -D %s %s'", remote_ref->name, remote->url, pattern);
2289 /* Send delete request */
2290 fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name);
2291 url = xmalloc(strlen(remote->url) + strlen(remote_ref->name) + 1);
2292 sprintf(url, "%s%s", remote->url, remote_ref->name);
2293 slot = get_active_slot();
2294 slot->results = &results;
2295 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
2296 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2297 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2298 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_DELETE);
2299 if (start_active_slot(slot)) {
2300 run_active_slot(slot);
2302 if (results.curl_result != CURLE_OK)
2303 return error("DELETE request failed (%d/%ld)\n",
2304 results.curl_result, results.http_code);
2307 return error("Unable to start DELETE request");
2313 int main(int argc, char **argv)
2315 struct transfer_request *request;
2316 struct transfer_request *next_request;
2318 char **refspec = NULL;
2319 struct remote_lock *ref_lock = NULL;
2320 struct remote_lock *info_ref_lock = NULL;
2321 struct rev_info revs;
2322 int delete_branch = 0;
2323 int force_delete = 0;
2324 int objects_to_send;
2330 setup_git_directory();
2333 remote = xcalloc(sizeof(*remote), 1);
2336 for (i = 1; i < argc; i++, argv++) {
2340 if (!strcmp(arg, "--all")) {
2344 if (!strcmp(arg, "--force")) {
2348 if (!strcmp(arg, "--verbose")) {
2352 if (!strcmp(arg, "-d")) {
2356 if (!strcmp(arg, "-D")) {
2363 char *path = strstr(arg, "//");
2366 path = strchr(path+2, '/');
2368 remote->path_len = strlen(path);
2373 nr_refspec = argc - i;
2378 usage(http_push_usage);
2380 if (delete_branch && nr_refspec != 1)
2381 die("You must specify only one branch name when deleting a remote branch");
2383 memset(remote_dir_exists, -1, 256);
2387 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
2388 default_headers = curl_slist_append(default_headers, "Range:");
2389 default_headers = curl_slist_append(default_headers, "Destination:");
2390 default_headers = curl_slist_append(default_headers, "If:");
2391 default_headers = curl_slist_append(default_headers,
2392 "Pragma: no-cache");
2394 /* Verify DAV compliance/lock support */
2395 if (!locking_available()) {
2396 fprintf(stderr, "Error: no DAV locking support on remote repo %s\n", remote->url);
2401 /* Check whether the remote has server info files */
2402 remote->can_update_info_refs = 0;
2403 remote->has_info_refs = remote_exists("info/refs");
2404 remote->has_info_packs = remote_exists("objects/info/packs");
2405 if (remote->has_info_refs) {
2406 info_ref_lock = lock_remote("info/refs", LOCK_TIME);
2408 remote->can_update_info_refs = 1;
2410 if (remote->has_info_packs)
2413 /* Get a list of all local and remote heads to validate refspecs */
2415 fprintf(stderr, "Fetching remote heads...\n");
2416 get_dav_remote_heads();
2418 /* Remove a remote branch if -d or -D was specified */
2419 if (delete_branch) {
2420 if (delete_remote_branch(refspec[0], force_delete) == -1)
2421 fprintf(stderr, "Unable to delete remote branch %s\n",
2428 remote_tail = &remote_refs;
2429 if (match_refs(local_refs, remote_refs, &remote_tail,
2430 nr_refspec, refspec, push_all))
2433 fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
2438 for (ref = remote_refs; ref; ref = ref->next) {
2439 char old_hex[60], *new_hex;
2440 const char *commit_argv[4];
2442 char *new_sha1_hex, *old_sha1_hex;
2446 if (!memcmp(ref->old_sha1, ref->peer_ref->new_sha1, 20)) {
2447 if (push_verbosely || 1)
2448 fprintf(stderr, "'%s': up-to-date\n", ref->name);
2453 !is_zero_sha1(ref->old_sha1) &&
2455 if (!has_sha1_file(ref->old_sha1) ||
2456 !ref_newer(ref->peer_ref->new_sha1,
2458 /* We do not have the remote ref, or
2459 * we know that the remote ref is not
2460 * an ancestor of what we are trying to
2461 * push. Either way this can be losing
2462 * commits at the remote end and likely
2463 * we were not up to date to begin with.
2465 error("remote '%s' is not a strict "
2466 "subset of local ref '%s'. "
2467 "maybe you are not up-to-date and "
2468 "need to pull first?",
2470 ref->peer_ref->name);
2475 memcpy(ref->new_sha1, ref->peer_ref->new_sha1, 20);
2476 if (is_zero_sha1(ref->new_sha1)) {
2477 error("cannot happen anymore");
2482 strcpy(old_hex, sha1_to_hex(ref->old_sha1));
2483 new_hex = sha1_to_hex(ref->new_sha1);
2485 fprintf(stderr, "updating '%s'", ref->name);
2486 if (strcmp(ref->name, ref->peer_ref->name))
2487 fprintf(stderr, " using '%s'", ref->peer_ref->name);
2488 fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
2491 /* Lock remote branch ref */
2492 ref_lock = lock_remote(ref->name, LOCK_TIME);
2493 if (ref_lock == NULL) {
2494 fprintf(stderr, "Unable to lock remote branch %s\n",
2500 /* Set up revision info for this refspec */
2502 new_sha1_hex = strdup(sha1_to_hex(ref->new_sha1));
2503 old_sha1_hex = NULL;
2504 commit_argv[1] = "--objects";
2505 commit_argv[2] = new_sha1_hex;
2506 if (!push_all && !is_zero_sha1(ref->old_sha1)) {
2507 old_sha1_hex = xmalloc(42);
2508 sprintf(old_sha1_hex, "^%s",
2509 sha1_to_hex(ref->old_sha1));
2510 commit_argv[3] = old_sha1_hex;
2513 init_revisions(&revs);
2514 setup_revisions(commit_argc, commit_argv, &revs, NULL);
2518 commit_argv[1] = NULL;
2521 /* Generate a list of objects that need to be pushed */
2523 prepare_revision_walk(&revs);
2524 mark_edges_uninteresting(revs.commits);
2525 objects_to_send = get_delta(&revs, ref_lock);
2526 finish_all_active_slots();
2528 /* Push missing objects to remote, this would be a
2529 convenient time to pack them first if appropriate. */
2531 if (objects_to_send)
2532 fprintf(stderr, " sending %d objects\n",
2534 #ifdef USE_CURL_MULTI
2535 fill_active_slots();
2537 finish_all_active_slots();
2539 /* Update the remote branch if all went well */
2540 if (aborted || !update_remote(ref->new_sha1, ref_lock)) {
2547 fprintf(stderr, " done\n");
2548 unlock_remote(ref_lock);
2552 /* Update remote server info if appropriate */
2553 if (remote->has_info_refs && new_refs) {
2554 if (info_ref_lock && remote->can_update_info_refs) {
2555 fprintf(stderr, "Updating remote server info\n");
2556 update_remote_info_refs(info_ref_lock);
2558 fprintf(stderr, "Unable to update server info\n");
2562 unlock_remote(info_ref_lock);
2567 curl_slist_free_all(no_pragma_header);
2568 curl_slist_free_all(default_headers);
2572 request = request_queue_head;
2573 while (request != NULL) {
2574 next_request = request->next;
2575 release_request(request);
2576 request = next_request;