16 static const char http_push_usage[] =
17 "git-http-push [--all] [--force] [--verbose] <remote> [<head>...]\n";
24 #define XML_STATUS_OK 1
25 #define XML_STATUS_ERROR 0
28 #define PREV_BUF_SIZE 4096
29 #define RANGE_HEADER_SIZE 30
32 #define DAV_LOCK "LOCK"
33 #define DAV_MKCOL "MKCOL"
34 #define DAV_MOVE "MOVE"
35 #define DAV_PROPFIND "PROPFIND"
37 #define DAV_UNLOCK "UNLOCK"
38 #define DAV_DELETE "DELETE"
41 #define DAV_PROP_LOCKWR (1u << 0)
42 #define DAV_PROP_LOCKEX (1u << 1)
43 #define DAV_LOCK_OK (1u << 2)
45 /* DAV XML properties */
46 #define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry"
47 #define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write"
48 #define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive"
49 #define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href"
50 #define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout"
51 #define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href"
52 #define DAV_PROPFIND_RESP ".multistatus.response"
53 #define DAV_PROPFIND_NAME ".multistatus.response.href"
54 #define DAV_PROPFIND_COLLECTION ".multistatus.response.propstat.prop.resourcetype.collection"
56 /* DAV request body templates */
57 #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>"
58 #define PROPFIND_ALL_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:allprop/>\n</D:propfind>"
59 #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>"
62 #define LOCK_REFRESH 30
64 /* bits #0-15 in revision.h */
66 #define LOCAL (1u<<16)
67 #define REMOTE (1u<<17)
68 #define FETCHING (1u<<18)
69 #define PUSHING (1u<<19)
71 /* We allow "recursive" symbolic refs. Only within reason, though */
76 static signed char remote_dir_exists[256];
78 static struct curl_slist *no_pragma_header;
79 static struct curl_slist *default_headers;
81 static int push_verbosely;
85 static struct object_list *objects;
92 int can_update_info_refs;
94 struct packed_git *packs;
95 struct remote_lock *locks;
98 static struct repo *remote;
100 enum transfer_state {
112 struct transfer_request
117 struct remote_lock *lock;
118 struct curl_slist *headers;
119 struct buffer buffer;
120 char filename[PATH_MAX];
121 char tmpfile[PATH_MAX];
124 enum transfer_state state;
125 CURLcode curl_result;
126 char errorstr[CURL_ERROR_SIZE];
128 unsigned char real_sha1[20];
134 struct active_request_slot *slot;
135 struct transfer_request *next;
138 static struct transfer_request *request_queue_head;
145 void (*userFunc)(struct xml_ctx *ctx, int tag_closed);
157 struct remote_lock *next;
160 /* Flags that control remote_ls processing */
161 #define PROCESS_FILES (1u << 0)
162 #define PROCESS_DIRS (1u << 1)
163 #define RECURSIVE (1u << 2)
165 /* Flags that remote_ls passes to callback functions */
166 #define IS_DIR (1u << 0)
171 void (*userFunc)(struct remote_ls_ctx *ls);
176 struct remote_ls_ctx *parent;
179 static void finish_request(struct transfer_request *request);
180 static void release_request(struct transfer_request *request);
182 static void process_response(void *callback_data)
184 struct transfer_request *request =
185 (struct transfer_request *)callback_data;
187 finish_request(request);
190 #ifdef USE_CURL_MULTI
191 static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
194 unsigned char expn[4096];
195 size_t size = eltsize * nmemb;
197 struct transfer_request *request = (struct transfer_request *)data;
199 ssize_t retval = xwrite(request->local_fileno,
200 (char *) ptr + posn, size - posn);
204 } while (posn < size);
206 request->stream.avail_in = size;
207 request->stream.next_in = ptr;
209 request->stream.next_out = expn;
210 request->stream.avail_out = sizeof(expn);
211 request->zret = inflate(&request->stream, Z_SYNC_FLUSH);
212 SHA1_Update(&request->c, expn,
213 sizeof(expn) - request->stream.avail_out);
214 } while (request->stream.avail_in && request->zret == Z_OK);
219 static void start_fetch_loose(struct transfer_request *request)
221 char *hex = sha1_to_hex(request->obj->sha1);
223 char prevfile[PATH_MAX];
227 unsigned char prev_buf[PREV_BUF_SIZE];
228 ssize_t prev_read = 0;
230 char range[RANGE_HEADER_SIZE];
231 struct curl_slist *range_header = NULL;
232 struct active_request_slot *slot;
234 filename = sha1_file_name(request->obj->sha1);
235 snprintf(request->filename, sizeof(request->filename), "%s", filename);
236 snprintf(request->tmpfile, sizeof(request->tmpfile),
237 "%s.temp", filename);
239 snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename);
241 rename(request->tmpfile, prevfile);
242 unlink(request->tmpfile);
244 if (request->local_fileno != -1)
245 error("fd leakage in start: %d", request->local_fileno);
246 request->local_fileno = open(request->tmpfile,
247 O_WRONLY | O_CREAT | O_EXCL, 0666);
248 /* This could have failed due to the "lazy directory creation";
249 * try to mkdir the last path component.
251 if (request->local_fileno < 0 && errno == ENOENT) {
252 char *dir = strrchr(request->tmpfile, '/');
255 mkdir(request->tmpfile, 0777);
258 request->local_fileno = open(request->tmpfile,
259 O_WRONLY | O_CREAT | O_EXCL, 0666);
262 if (request->local_fileno < 0) {
263 request->state = ABORTED;
264 error("Couldn't create temporary file %s for %s: %s",
265 request->tmpfile, request->filename, strerror(errno));
269 memset(&request->stream, 0, sizeof(request->stream));
271 inflateInit(&request->stream);
273 SHA1_Init(&request->c);
275 url = xmalloc(strlen(remote->url) + 50);
276 request->url = xmalloc(strlen(remote->url) + 50);
277 strcpy(url, remote->url);
278 posn = url + strlen(remote->url);
279 strcpy(posn, "objects/");
281 memcpy(posn, hex, 2);
284 strcpy(posn, hex + 2);
285 strcpy(request->url, url);
287 /* If a previous temp file is present, process what was already
289 prevlocal = open(prevfile, O_RDONLY);
290 if (prevlocal != -1) {
292 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
294 if (fwrite_sha1_file(prev_buf,
297 request) == prev_read) {
298 prev_posn += prev_read;
303 } while (prev_read > 0);
308 /* Reset inflate/SHA1 if there was an error reading the previous temp
309 file; also rewind to the beginning of the local file. */
310 if (prev_read == -1) {
311 memset(&request->stream, 0, sizeof(request->stream));
312 inflateInit(&request->stream);
313 SHA1_Init(&request->c);
316 lseek(request->local_fileno, 0, SEEK_SET);
317 ftruncate(request->local_fileno, 0);
321 slot = get_active_slot();
322 slot->callback_func = process_response;
323 slot->callback_data = request;
324 request->slot = slot;
326 curl_easy_setopt(slot->curl, CURLOPT_FILE, request);
327 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
328 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
329 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
330 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
332 /* If we have successfully processed data from a previous fetch
333 attempt, only fetch the data we don't already have. */
337 "Resuming fetch of object %s at byte %ld\n",
339 sprintf(range, "Range: bytes=%ld-", prev_posn);
340 range_header = curl_slist_append(range_header, range);
341 curl_easy_setopt(slot->curl,
342 CURLOPT_HTTPHEADER, range_header);
345 /* Try to get the request started, abort the request on error */
346 request->state = RUN_FETCH_LOOSE;
347 if (!start_active_slot(slot)) {
348 fprintf(stderr, "Unable to start GET request\n");
349 remote->can_update_info_refs = 0;
350 release_request(request);
354 static void start_mkcol(struct transfer_request *request)
356 char *hex = sha1_to_hex(request->obj->sha1);
357 struct active_request_slot *slot;
360 request->url = xmalloc(strlen(remote->url) + 13);
361 strcpy(request->url, remote->url);
362 posn = request->url + strlen(remote->url);
363 strcpy(posn, "objects/");
365 memcpy(posn, hex, 2);
369 slot = get_active_slot();
370 slot->callback_func = process_response;
371 slot->callback_data = request;
372 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
373 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
374 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
375 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
376 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
378 if (start_active_slot(slot)) {
379 request->slot = slot;
380 request->state = RUN_MKCOL;
382 request->state = ABORTED;
389 static void start_fetch_packed(struct transfer_request *request)
392 struct packed_git *target;
396 char range[RANGE_HEADER_SIZE];
397 struct curl_slist *range_header = NULL;
399 struct transfer_request *check_request = request_queue_head;
400 struct active_request_slot *slot;
402 target = find_sha1_pack(request->obj->sha1, remote->packs);
404 fprintf(stderr, "Unable to fetch %s, will not be able to update server info refs\n", sha1_to_hex(request->obj->sha1));
405 remote->can_update_info_refs = 0;
406 release_request(request);
410 fprintf(stderr, "Fetching pack %s\n", sha1_to_hex(target->sha1));
411 fprintf(stderr, " which contains %s\n", sha1_to_hex(request->obj->sha1));
413 filename = sha1_pack_name(target->sha1);
414 snprintf(request->filename, sizeof(request->filename), "%s", filename);
415 snprintf(request->tmpfile, sizeof(request->tmpfile),
416 "%s.temp", filename);
418 url = xmalloc(strlen(remote->url) + 64);
419 sprintf(url, "%sobjects/pack/pack-%s.pack",
420 remote->url, sha1_to_hex(target->sha1));
422 /* Make sure there isn't another open request for this pack */
423 while (check_request) {
424 if (check_request->state == RUN_FETCH_PACKED &&
425 !strcmp(check_request->url, url)) {
427 release_request(request);
430 check_request = check_request->next;
433 packfile = fopen(request->tmpfile, "a");
435 fprintf(stderr, "Unable to open local file %s for pack",
437 remote->can_update_info_refs = 0;
442 slot = get_active_slot();
443 slot->callback_func = process_response;
444 slot->callback_data = request;
445 request->slot = slot;
446 request->local_stream = packfile;
447 request->userData = target;
450 curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile);
451 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
452 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
453 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
454 slot->local = packfile;
456 /* If there is data present from a previous transfer attempt,
457 resume where it left off */
458 prev_posn = ftell(packfile);
462 "Resuming fetch of pack %s at byte %ld\n",
463 sha1_to_hex(target->sha1), prev_posn);
464 sprintf(range, "Range: bytes=%ld-", prev_posn);
465 range_header = curl_slist_append(range_header, range);
466 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
469 /* Try to get the request started, abort the request on error */
470 request->state = RUN_FETCH_PACKED;
471 if (!start_active_slot(slot)) {
472 fprintf(stderr, "Unable to start GET request\n");
473 remote->can_update_info_refs = 0;
474 release_request(request);
478 static void start_put(struct transfer_request *request)
480 char *hex = sha1_to_hex(request->obj->sha1);
481 struct active_request_slot *slot;
483 enum object_type type;
491 unpacked = read_sha1_file(request->obj->sha1, &type, &len);
492 hdrlen = sprintf(hdr, "%s %lu", typename(type), len) + 1;
495 memset(&stream, 0, sizeof(stream));
496 deflateInit(&stream, zlib_compression_level);
497 size = deflateBound(&stream, len + hdrlen);
498 request->buffer.buffer = xmalloc(size);
501 stream.next_out = request->buffer.buffer;
502 stream.avail_out = size;
505 stream.next_in = (void *)hdr;
506 stream.avail_in = hdrlen;
507 while (deflate(&stream, 0) == Z_OK)
510 /* Then the data itself.. */
511 stream.next_in = unpacked;
512 stream.avail_in = len;
513 while (deflate(&stream, Z_FINISH) == Z_OK)
518 request->buffer.size = stream.total_out;
519 request->buffer.posn = 0;
521 request->url = xmalloc(strlen(remote->url) +
522 strlen(request->lock->token) + 51);
523 strcpy(request->url, remote->url);
524 posn = request->url + strlen(remote->url);
525 strcpy(posn, "objects/");
527 memcpy(posn, hex, 2);
530 strcpy(posn, hex + 2);
531 request->dest = xmalloc(strlen(request->url) + 14);
532 sprintf(request->dest, "Destination: %s", request->url);
535 strcpy(posn, request->lock->token);
537 slot = get_active_slot();
538 slot->callback_func = process_response;
539 slot->callback_data = request;
540 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer);
541 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.size);
542 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
543 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
544 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
545 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
546 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
547 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
548 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
550 if (start_active_slot(slot)) {
551 request->slot = slot;
552 request->state = RUN_PUT;
554 request->state = ABORTED;
560 static void start_move(struct transfer_request *request)
562 struct active_request_slot *slot;
563 struct curl_slist *dav_headers = NULL;
565 slot = get_active_slot();
566 slot->callback_func = process_response;
567 slot->callback_data = request;
568 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
569 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MOVE);
570 dav_headers = curl_slist_append(dav_headers, request->dest);
571 dav_headers = curl_slist_append(dav_headers, "Overwrite: T");
572 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
573 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
574 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
576 if (start_active_slot(slot)) {
577 request->slot = slot;
578 request->state = RUN_MOVE;
580 request->state = ABORTED;
586 static int refresh_lock(struct remote_lock *lock)
588 struct active_request_slot *slot;
589 struct slot_results results;
591 char timeout_header[25];
592 struct curl_slist *dav_headers = NULL;
595 lock->refreshing = 1;
597 if_header = xmalloc(strlen(lock->token) + 25);
598 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
599 sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout);
600 dav_headers = curl_slist_append(dav_headers, if_header);
601 dav_headers = curl_slist_append(dav_headers, timeout_header);
603 slot = get_active_slot();
604 slot->results = &results;
605 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
606 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
607 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
608 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
609 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
611 if (start_active_slot(slot)) {
612 run_active_slot(slot);
613 if (results.curl_result != CURLE_OK) {
614 fprintf(stderr, "LOCK HTTP error %ld\n",
617 lock->start_time = time(NULL);
622 lock->refreshing = 0;
623 curl_slist_free_all(dav_headers);
629 static void check_locks(void)
631 struct remote_lock *lock = remote->locks;
632 time_t current_time = time(NULL);
636 time_remaining = lock->start_time + lock->timeout -
638 if (!lock->refreshing && time_remaining < LOCK_REFRESH) {
639 if (!refresh_lock(lock)) {
641 "Unable to refresh lock for %s\n",
651 static void release_request(struct transfer_request *request)
653 struct transfer_request *entry = request_queue_head;
655 if (request == request_queue_head) {
656 request_queue_head = request->next;
658 while (entry->next != NULL && entry->next != request)
660 if (entry->next == request)
661 entry->next = entry->next->next;
664 if (request->local_fileno != -1)
665 close(request->local_fileno);
666 if (request->local_stream)
667 fclose(request->local_stream);
668 if (request->url != NULL)
673 static void finish_request(struct transfer_request *request)
676 struct packed_git *target;
677 struct packed_git **lst;
679 request->curl_result = request->slot->curl_result;
680 request->http_code = request->slot->http_code;
681 request->slot = NULL;
683 /* Keep locks active */
686 if (request->headers != NULL)
687 curl_slist_free_all(request->headers);
689 /* URL is reused for MOVE after PUT */
690 if (request->state != RUN_PUT) {
695 if (request->state == RUN_MKCOL) {
696 if (request->curl_result == CURLE_OK ||
697 request->http_code == 405) {
698 remote_dir_exists[request->obj->sha1[0]] = 1;
701 fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n",
702 sha1_to_hex(request->obj->sha1),
703 request->curl_result, request->http_code);
704 request->state = ABORTED;
707 } else if (request->state == RUN_PUT) {
708 if (request->curl_result == CURLE_OK) {
711 fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n",
712 sha1_to_hex(request->obj->sha1),
713 request->curl_result, request->http_code);
714 request->state = ABORTED;
717 } else if (request->state == RUN_MOVE) {
718 if (request->curl_result == CURLE_OK) {
720 fprintf(stderr, " sent %s\n",
721 sha1_to_hex(request->obj->sha1));
722 request->obj->flags |= REMOTE;
723 release_request(request);
725 fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n",
726 sha1_to_hex(request->obj->sha1),
727 request->curl_result, request->http_code);
728 request->state = ABORTED;
731 } else if (request->state == RUN_FETCH_LOOSE) {
732 fchmod(request->local_fileno, 0444);
733 close(request->local_fileno); request->local_fileno = -1;
735 if (request->curl_result != CURLE_OK &&
736 request->http_code != 416) {
737 if (stat(request->tmpfile, &st) == 0) {
739 unlink(request->tmpfile);
742 if (request->http_code == 416)
743 fprintf(stderr, "Warning: requested range invalid; we may already have all the data.\n");
745 inflateEnd(&request->stream);
746 SHA1_Final(request->real_sha1, &request->c);
747 if (request->zret != Z_STREAM_END) {
748 unlink(request->tmpfile);
749 } else if (hashcmp(request->obj->sha1, request->real_sha1)) {
750 unlink(request->tmpfile);
756 if (request->rename == 0) {
757 request->obj->flags |= (LOCAL | REMOTE);
762 /* Try fetching packed if necessary */
763 if (request->obj->flags & LOCAL)
764 release_request(request);
766 start_fetch_packed(request);
768 } else if (request->state == RUN_FETCH_PACKED) {
769 if (request->curl_result != CURLE_OK) {
770 fprintf(stderr, "Unable to get pack file %s\n%s",
771 request->url, curl_errorstr);
772 remote->can_update_info_refs = 0;
774 off_t pack_size = ftell(request->local_stream);
776 fclose(request->local_stream);
777 request->local_stream = NULL;
778 if (!move_temp_to_file(request->tmpfile,
779 request->filename)) {
780 target = (struct packed_git *)request->userData;
781 target->pack_size = pack_size;
782 lst = &remote->packs;
783 while (*lst != target)
784 lst = &((*lst)->next);
787 if (!verify_pack(target, 0))
788 install_packed_git(target);
790 remote->can_update_info_refs = 0;
793 release_request(request);
797 #ifdef USE_CURL_MULTI
798 void fill_active_slots(void)
800 struct transfer_request *request = request_queue_head;
801 struct transfer_request *next;
802 struct active_request_slot *slot = active_queue_head;
808 while (active_requests < max_requests && request != NULL) {
809 next = request->next;
810 if (request->state == NEED_FETCH) {
811 start_fetch_loose(request);
812 } else if (pushing && request->state == NEED_PUSH) {
813 if (remote_dir_exists[request->obj->sha1[0]] == 1) {
816 start_mkcol(request);
818 curl_multi_perform(curlm, &num_transfers);
823 while (slot != NULL) {
824 if (!slot->in_use && slot->curl != NULL) {
825 curl_easy_cleanup(slot->curl);
833 static void get_remote_object_list(unsigned char parent);
835 static void add_fetch_request(struct object *obj)
837 struct transfer_request *request;
842 * Don't fetch the object if it's known to exist locally
843 * or is already in the request queue
845 if (remote_dir_exists[obj->sha1[0]] == -1)
846 get_remote_object_list(obj->sha1[0]);
847 if (obj->flags & (LOCAL | FETCHING))
850 obj->flags |= FETCHING;
851 request = xmalloc(sizeof(*request));
854 request->lock = NULL;
855 request->headers = NULL;
856 request->local_fileno = -1;
857 request->local_stream = NULL;
858 request->state = NEED_FETCH;
859 request->next = request_queue_head;
860 request_queue_head = request;
862 #ifdef USE_CURL_MULTI
868 static int add_send_request(struct object *obj, struct remote_lock *lock)
870 struct transfer_request *request = request_queue_head;
871 struct packed_git *target;
873 /* Keep locks active */
877 * Don't push the object if it's known to exist on the remote
878 * or is already in the request queue
880 if (remote_dir_exists[obj->sha1[0]] == -1)
881 get_remote_object_list(obj->sha1[0]);
882 if (obj->flags & (REMOTE | PUSHING))
884 target = find_sha1_pack(obj->sha1, remote->packs);
886 obj->flags |= REMOTE;
890 obj->flags |= PUSHING;
891 request = xmalloc(sizeof(*request));
894 request->lock = lock;
895 request->headers = NULL;
896 request->local_fileno = -1;
897 request->local_stream = NULL;
898 request->state = NEED_PUSH;
899 request->next = request_queue_head;
900 request_queue_head = request;
902 #ifdef USE_CURL_MULTI
910 static int fetch_index(unsigned char *sha1)
912 char *hex = sha1_to_hex(sha1);
915 char tmpfile[PATH_MAX];
917 char range[RANGE_HEADER_SIZE];
918 struct curl_slist *range_header = NULL;
921 struct active_request_slot *slot;
922 struct slot_results results;
924 /* Don't use the index if the pack isn't there */
925 url = xmalloc(strlen(remote->url) + 64);
926 sprintf(url, "%sobjects/pack/pack-%s.pack", remote->url, hex);
927 slot = get_active_slot();
928 slot->results = &results;
929 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
930 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
931 if (start_active_slot(slot)) {
932 run_active_slot(slot);
933 if (results.curl_result != CURLE_OK) {
935 return error("Unable to verify pack %s is available",
939 return error("Unable to start request");
942 if (has_pack_index(sha1))
946 fprintf(stderr, "Getting index for pack %s\n", hex);
948 sprintf(url, "%sobjects/pack/pack-%s.idx", remote->url, hex);
950 filename = sha1_pack_index_name(sha1);
951 snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
952 indexfile = fopen(tmpfile, "a");
954 return error("Unable to open local file %s for pack index",
957 slot = get_active_slot();
958 slot->results = &results;
959 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
960 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
961 curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile);
962 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
963 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
964 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
965 slot->local = indexfile;
967 /* If there is data present from a previous transfer attempt,
968 resume where it left off */
969 prev_posn = ftell(indexfile);
973 "Resuming fetch of index for pack %s at byte %ld\n",
975 sprintf(range, "Range: bytes=%ld-", prev_posn);
976 range_header = curl_slist_append(range_header, range);
977 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
980 if (start_active_slot(slot)) {
981 run_active_slot(slot);
982 if (results.curl_result != CURLE_OK) {
985 return error("Unable to get pack index %s\n%s", url,
991 return error("Unable to start request");
997 return move_temp_to_file(tmpfile, filename);
1000 static int setup_index(unsigned char *sha1)
1002 struct packed_git *new_pack;
1004 if (fetch_index(sha1))
1007 new_pack = parse_pack_index(sha1);
1008 new_pack->next = remote->packs;
1009 remote->packs = new_pack;
1013 static int fetch_indices(void)
1015 unsigned char sha1[20];
1017 struct buffer buffer;
1021 struct active_request_slot *slot;
1022 struct slot_results results;
1024 data = xcalloc(1, 4096);
1027 buffer.buffer = data;
1030 fprintf(stderr, "Getting pack list\n");
1032 url = xmalloc(strlen(remote->url) + 20);
1033 sprintf(url, "%sobjects/info/packs", remote->url);
1035 slot = get_active_slot();
1036 slot->results = &results;
1037 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
1038 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1039 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1040 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
1041 if (start_active_slot(slot)) {
1042 run_active_slot(slot);
1043 if (results.curl_result != CURLE_OK) {
1044 free(buffer.buffer);
1046 if (results.http_code == 404)
1049 return error("%s", curl_errorstr);
1052 free(buffer.buffer);
1054 return error("Unable to start request");
1058 data = buffer.buffer;
1059 while (i < buffer.posn) {
1063 if (i + 52 < buffer.posn &&
1064 !prefixcmp(data + i, " pack-") &&
1065 !prefixcmp(data + i + 46, ".pack\n")) {
1066 get_sha1_hex(data + i + 6, sha1);
1072 while (data[i] != '\n')
1078 free(buffer.buffer);
1082 static inline int needs_quote(int ch)
1084 if (((ch >= 'A') && (ch <= 'Z'))
1085 || ((ch >= 'a') && (ch <= 'z'))
1086 || ((ch >= '0') && (ch <= '9'))
1094 static inline int hex(int v)
1096 if (v < 10) return '0' + v;
1097 else return 'A' + v - 10;
1100 static char *quote_ref_url(const char *base, const char *ref)
1104 int len, baselen, ch;
1106 baselen = strlen(base);
1108 for (cp = ref; (ch = *cp) != 0; cp++, len++)
1109 if (needs_quote(ch))
1110 len += 2; /* extra two hex plus replacement % */
1111 qref = xmalloc(len);
1112 memcpy(qref, base, baselen);
1113 for (cp = ref, dp = qref + baselen; (ch = *cp) != 0; cp++) {
1114 if (needs_quote(ch)) {
1116 *dp++ = hex((ch >> 4) & 0xF);
1117 *dp++ = hex(ch & 0xF);
1127 int fetch_ref(char *ref, unsigned char *sha1)
1131 struct buffer buffer;
1132 char *base = remote->url;
1133 struct active_request_slot *slot;
1134 struct slot_results results;
1137 buffer.buffer = hex;
1140 url = quote_ref_url(base, ref);
1141 slot = get_active_slot();
1142 slot->results = &results;
1143 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
1144 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1145 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
1146 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1147 if (start_active_slot(slot)) {
1148 run_active_slot(slot);
1149 if (results.curl_result != CURLE_OK)
1150 return error("Couldn't get %s for %s\n%s",
1151 url, ref, curl_errorstr);
1153 return error("Unable to start request");
1157 get_sha1_hex(hex, sha1);
1161 static void one_remote_object(const char *hex)
1163 unsigned char sha1[20];
1166 if (get_sha1_hex(hex, sha1) != 0)
1169 obj = lookup_object(sha1);
1171 obj = parse_object(sha1);
1173 /* Ignore remote objects that don't exist locally */
1177 obj->flags |= REMOTE;
1178 if (!object_list_contains(objects, obj))
1179 object_list_insert(obj, &objects);
1182 static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
1184 int *lock_flags = (int *)ctx->userData;
1187 if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) {
1188 if ((*lock_flags & DAV_PROP_LOCKEX) &&
1189 (*lock_flags & DAV_PROP_LOCKWR)) {
1190 *lock_flags |= DAV_LOCK_OK;
1192 *lock_flags &= DAV_LOCK_OK;
1193 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) {
1194 *lock_flags |= DAV_PROP_LOCKWR;
1195 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) {
1196 *lock_flags |= DAV_PROP_LOCKEX;
1201 static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
1203 struct remote_lock *lock = (struct remote_lock *)ctx->userData;
1205 if (tag_closed && ctx->cdata) {
1206 if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
1207 lock->owner = xmalloc(strlen(ctx->cdata) + 1);
1208 strcpy(lock->owner, ctx->cdata);
1209 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) {
1210 if (!prefixcmp(ctx->cdata, "Second-"))
1212 strtol(ctx->cdata + 7, NULL, 10);
1213 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
1214 if (!prefixcmp(ctx->cdata, "opaquelocktoken:")) {
1215 lock->token = xmalloc(strlen(ctx->cdata) - 15);
1216 strcpy(lock->token, ctx->cdata + 16);
1222 static void one_remote_ref(char *refname);
1225 xml_start_tag(void *userData, const char *name, const char **atts)
1227 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1228 const char *c = strchr(name, ':');
1236 new_len = strlen(ctx->name) + strlen(c) + 2;
1238 if (new_len > ctx->len) {
1239 ctx->name = xrealloc(ctx->name, new_len);
1242 strcat(ctx->name, ".");
1243 strcat(ctx->name, c);
1248 ctx->userFunc(ctx, 0);
1252 xml_end_tag(void *userData, const char *name)
1254 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1255 const char *c = strchr(name, ':');
1258 ctx->userFunc(ctx, 1);
1265 ep = ctx->name + strlen(ctx->name) - strlen(c) - 1;
1270 xml_cdata(void *userData, const XML_Char *s, int len)
1272 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1274 ctx->cdata = xmemdupz(s, len);
1277 static struct remote_lock *lock_remote(const char *path, long timeout)
1279 struct active_request_slot *slot;
1280 struct slot_results results;
1281 struct buffer out_buffer;
1282 struct buffer in_buffer;
1287 char timeout_header[25];
1288 struct remote_lock *lock = NULL;
1289 XML_Parser parser = XML_ParserCreate(NULL);
1290 enum XML_Status result;
1291 struct curl_slist *dav_headers = NULL;
1294 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
1295 sprintf(url, "%s%s", remote->url, path);
1297 /* Make sure leading directories exist for the remote ref */
1298 ep = strchr(url + strlen(remote->url) + 1, '/');
1301 slot = get_active_slot();
1302 slot->results = &results;
1303 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1304 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1305 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
1306 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1307 if (start_active_slot(slot)) {
1308 run_active_slot(slot);
1309 if (results.curl_result != CURLE_OK &&
1310 results.http_code != 405) {
1312 "Unable to create branch path %s\n",
1318 fprintf(stderr, "Unable to start MKCOL request\n");
1323 ep = strchr(ep + 1, '/');
1326 out_buffer.size = strlen(LOCK_REQUEST) + strlen(git_default_email) - 2;
1327 out_data = xmalloc(out_buffer.size + 1);
1328 snprintf(out_data, out_buffer.size + 1, LOCK_REQUEST, git_default_email);
1329 out_buffer.posn = 0;
1330 out_buffer.buffer = out_data;
1332 in_buffer.size = 4096;
1333 in_data = xmalloc(in_buffer.size);
1335 in_buffer.buffer = in_data;
1337 sprintf(timeout_header, "Timeout: Second-%ld", timeout);
1338 dav_headers = curl_slist_append(dav_headers, timeout_header);
1339 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1341 slot = get_active_slot();
1342 slot->results = &results;
1343 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1344 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
1345 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1346 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1347 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1348 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1349 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1350 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
1351 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1353 lock = xcalloc(1, sizeof(*lock));
1356 if (start_active_slot(slot)) {
1357 run_active_slot(slot);
1358 if (results.curl_result == CURLE_OK) {
1359 ctx.name = xcalloc(10, 1);
1362 ctx.userFunc = handle_new_lock_ctx;
1363 ctx.userData = lock;
1364 XML_SetUserData(parser, &ctx);
1365 XML_SetElementHandler(parser, xml_start_tag,
1367 XML_SetCharacterDataHandler(parser, xml_cdata);
1368 result = XML_Parse(parser, in_buffer.buffer,
1371 if (result != XML_STATUS_OK) {
1372 fprintf(stderr, "XML error: %s\n",
1374 XML_GetErrorCode(parser)));
1379 fprintf(stderr, "Unable to start LOCK request\n");
1382 curl_slist_free_all(dav_headers);
1386 if (lock->token == NULL || lock->timeout <= 0) {
1387 if (lock->token != NULL)
1389 if (lock->owner != NULL)
1396 lock->start_time = time(NULL);
1397 lock->next = remote->locks;
1398 remote->locks = lock;
1404 static int unlock_remote(struct remote_lock *lock)
1406 struct active_request_slot *slot;
1407 struct slot_results results;
1408 struct remote_lock *prev = remote->locks;
1409 char *lock_token_header;
1410 struct curl_slist *dav_headers = NULL;
1413 lock_token_header = xmalloc(strlen(lock->token) + 31);
1414 sprintf(lock_token_header, "Lock-Token: <opaquelocktoken:%s>",
1416 dav_headers = curl_slist_append(dav_headers, lock_token_header);
1418 slot = get_active_slot();
1419 slot->results = &results;
1420 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1421 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1422 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK);
1423 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1425 if (start_active_slot(slot)) {
1426 run_active_slot(slot);
1427 if (results.curl_result == CURLE_OK)
1430 fprintf(stderr, "UNLOCK HTTP error %ld\n",
1433 fprintf(stderr, "Unable to start UNLOCK request\n");
1436 curl_slist_free_all(dav_headers);
1437 free(lock_token_header);
1439 if (remote->locks == lock) {
1440 remote->locks = lock->next;
1442 while (prev && prev->next != lock)
1445 prev->next = prev->next->next;
1448 if (lock->owner != NULL)
1457 static void remote_ls(const char *path, int flags,
1458 void (*userFunc)(struct remote_ls_ctx *ls),
1461 static void process_ls_object(struct remote_ls_ctx *ls)
1463 unsigned int *parent = (unsigned int *)ls->userData;
1464 char *path = ls->dentry_name;
1467 if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) {
1468 remote_dir_exists[*parent] = 1;
1472 if (strlen(path) != 49)
1475 obj_hex = xmalloc(strlen(path));
1476 /* NB: path is not null-terminated, can not use strlcpy here */
1477 memcpy(obj_hex, path, 2);
1478 strcpy(obj_hex + 2, path + 3);
1479 one_remote_object(obj_hex);
1483 static void process_ls_ref(struct remote_ls_ctx *ls)
1485 if (!strcmp(ls->path, ls->dentry_name) && (ls->dentry_flags & IS_DIR)) {
1486 fprintf(stderr, " %s\n", ls->dentry_name);
1490 if (!(ls->dentry_flags & IS_DIR))
1491 one_remote_ref(ls->dentry_name);
1494 static void handle_remote_ls_ctx(struct xml_ctx *ctx, int tag_closed)
1496 struct remote_ls_ctx *ls = (struct remote_ls_ctx *)ctx->userData;
1499 if (!strcmp(ctx->name, DAV_PROPFIND_RESP) && ls->dentry_name) {
1500 if (ls->dentry_flags & IS_DIR) {
1501 if (ls->flags & PROCESS_DIRS) {
1504 if (strcmp(ls->dentry_name, ls->path) &&
1505 ls->flags & RECURSIVE) {
1506 remote_ls(ls->dentry_name,
1511 } else if (ls->flags & PROCESS_FILES) {
1514 } else if (!strcmp(ctx->name, DAV_PROPFIND_NAME) && ctx->cdata) {
1515 ls->dentry_name = xmalloc(strlen(ctx->cdata) -
1516 remote->path_len + 1);
1517 strcpy(ls->dentry_name, ctx->cdata + remote->path_len);
1518 } else if (!strcmp(ctx->name, DAV_PROPFIND_COLLECTION)) {
1519 ls->dentry_flags |= IS_DIR;
1521 } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
1522 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 = xstrdup(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 **add_one_object(struct object *obj, struct object_list **p)
1704 struct object_list *entry = xmalloc(sizeof(struct object_list));
1708 return &entry->next;
1711 static struct object_list **process_blob(struct blob *blob,
1712 struct object_list **p,
1713 struct name_path *path,
1716 struct object *obj = &blob->object;
1718 obj->flags |= LOCAL;
1720 if (obj->flags & (UNINTERESTING | SEEN))
1724 return add_one_object(obj, p);
1727 static struct object_list **process_tree(struct tree *tree,
1728 struct object_list **p,
1729 struct name_path *path,
1732 struct object *obj = &tree->object;
1733 struct tree_desc desc;
1734 struct name_entry entry;
1735 struct name_path me;
1737 obj->flags |= LOCAL;
1739 if (obj->flags & (UNINTERESTING | SEEN))
1741 if (parse_tree(tree) < 0)
1742 die("bad tree object %s", sha1_to_hex(obj->sha1));
1745 name = xstrdup(name);
1746 p = add_one_object(obj, p);
1749 me.elem_len = strlen(name);
1751 init_tree_desc(&desc, tree->buffer, tree->size);
1753 while (tree_entry(&desc, &entry)) {
1754 if (S_ISDIR(entry.mode))
1755 p = process_tree(lookup_tree(entry.sha1), p, &me, name);
1757 p = process_blob(lookup_blob(entry.sha1), p, &me, name);
1760 tree->buffer = NULL;
1764 static int get_delta(struct rev_info *revs, struct remote_lock *lock)
1767 struct commit *commit;
1768 struct object_list **p = &objects;
1771 while ((commit = get_revision(revs)) != NULL) {
1772 p = process_tree(commit->tree, p, NULL, "");
1773 commit->object.flags |= LOCAL;
1774 if (!(commit->object.flags & UNINTERESTING))
1775 count += add_send_request(&commit->object, lock);
1778 for (i = 0; i < revs->pending.nr; i++) {
1779 struct object_array_entry *entry = revs->pending.objects + i;
1780 struct object *obj = entry->item;
1781 const char *name = entry->name;
1783 if (obj->flags & (UNINTERESTING | SEEN))
1785 if (obj->type == OBJ_TAG) {
1787 p = add_one_object(obj, p);
1790 if (obj->type == OBJ_TREE) {
1791 p = process_tree((struct tree *)obj, p, NULL, name);
1794 if (obj->type == OBJ_BLOB) {
1795 p = process_blob((struct blob *)obj, p, NULL, name);
1798 die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
1802 if (!(objects->item->flags & UNINTERESTING))
1803 count += add_send_request(objects->item, lock);
1804 objects = objects->next;
1810 static int update_remote(unsigned char *sha1, struct remote_lock *lock)
1812 struct active_request_slot *slot;
1813 struct slot_results results;
1816 struct buffer out_buffer;
1817 struct curl_slist *dav_headers = NULL;
1820 if_header = xmalloc(strlen(lock->token) + 25);
1821 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
1822 dav_headers = curl_slist_append(dav_headers, if_header);
1824 out_buffer.size = 41;
1825 out_data = xmalloc(out_buffer.size + 1);
1826 i = snprintf(out_data, out_buffer.size + 1, "%s\n", sha1_to_hex(sha1));
1827 if (i != out_buffer.size) {
1828 fprintf(stderr, "Unable to initialize PUT request body\n");
1831 out_buffer.posn = 0;
1832 out_buffer.buffer = out_data;
1834 slot = get_active_slot();
1835 slot->results = &results;
1836 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1837 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
1838 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1839 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1840 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
1841 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1842 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1843 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
1844 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1846 if (start_active_slot(slot)) {
1847 run_active_slot(slot);
1850 if (results.curl_result != CURLE_OK) {
1852 "PUT error: curl result=%d, HTTP code=%ld\n",
1853 results.curl_result, results.http_code);
1854 /* We should attempt recovery? */
1860 fprintf(stderr, "Unable to start PUT request\n");
1867 static struct ref *local_refs, **local_tail;
1868 static struct ref *remote_refs, **remote_tail;
1870 static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
1873 int len = strlen(refname) + 1;
1874 ref = xcalloc(1, sizeof(*ref) + len);
1875 hashcpy(ref->new_sha1, sha1);
1876 memcpy(ref->name, refname, len);
1878 local_tail = &ref->next;
1882 static void one_remote_ref(char *refname)
1885 unsigned char remote_sha1[20];
1887 int len = strlen(refname) + 1;
1889 if (fetch_ref(refname, remote_sha1) != 0) {
1891 "Unable to fetch ref %s from %s\n",
1892 refname, remote->url);
1897 * Fetch a copy of the object if it doesn't exist locally - it
1898 * may be required for updating server info later.
1900 if (remote->can_update_info_refs && !has_sha1_file(remote_sha1)) {
1901 obj = lookup_unknown_object(remote_sha1);
1903 fprintf(stderr, " fetch %s for %s\n",
1904 sha1_to_hex(remote_sha1), refname);
1905 add_fetch_request(obj);
1909 ref = xcalloc(1, sizeof(*ref) + len);
1910 hashcpy(ref->old_sha1, remote_sha1);
1911 memcpy(ref->name, refname, len);
1913 remote_tail = &ref->next;
1916 static void get_local_heads(void)
1918 local_tail = &local_refs;
1919 for_each_ref(one_local_ref, NULL);
1922 static void get_dav_remote_heads(void)
1924 remote_tail = &remote_refs;
1925 remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL);
1928 static int is_zero_sha1(const unsigned char *sha1)
1932 for (i = 0; i < 20; i++) {
1939 static void unmark_and_free(struct commit_list *list, unsigned int mark)
1942 struct commit_list *temp = list;
1943 temp->item->object.flags &= ~mark;
1949 static int ref_newer(const unsigned char *new_sha1,
1950 const unsigned char *old_sha1)
1953 struct commit *old, *new;
1954 struct commit_list *list, *used;
1957 /* Both new and old must be commit-ish and new is descendant of
1958 * old. Otherwise we require --force.
1960 o = deref_tag(parse_object(old_sha1), NULL, 0);
1961 if (!o || o->type != OBJ_COMMIT)
1963 old = (struct commit *) o;
1965 o = deref_tag(parse_object(new_sha1), NULL, 0);
1966 if (!o || o->type != OBJ_COMMIT)
1968 new = (struct commit *) o;
1970 if (parse_commit(new) < 0)
1974 commit_list_insert(new, &list);
1976 new = pop_most_recent_commit(&list, TMP_MARK);
1977 commit_list_insert(new, &used);
1983 unmark_and_free(list, TMP_MARK);
1984 unmark_and_free(used, TMP_MARK);
1988 static void mark_edge_parents_uninteresting(struct commit *commit)
1990 struct commit_list *parents;
1992 for (parents = commit->parents; parents; parents = parents->next) {
1993 struct commit *parent = parents->item;
1994 if (!(parent->object.flags & UNINTERESTING))
1996 mark_tree_uninteresting(parent->tree);
2000 static void mark_edges_uninteresting(struct commit_list *list)
2002 for ( ; list; list = list->next) {
2003 struct commit *commit = list->item;
2005 if (commit->object.flags & UNINTERESTING) {
2006 mark_tree_uninteresting(commit->tree);
2009 mark_edge_parents_uninteresting(commit);
2013 static void add_remote_info_ref(struct remote_ls_ctx *ls)
2015 struct buffer *buf = (struct buffer *)ls->userData;
2016 unsigned char remote_sha1[20];
2021 if (fetch_ref(ls->dentry_name, remote_sha1) != 0) {
2023 "Unable to fetch ref %s from %s\n",
2024 ls->dentry_name, remote->url);
2029 o = parse_object(remote_sha1);
2032 "Unable to parse object %s for remote ref %s\n",
2033 sha1_to_hex(remote_sha1), ls->dentry_name);
2038 len = strlen(ls->dentry_name) + 42;
2039 ref_info = xcalloc(len + 1, 1);
2040 sprintf(ref_info, "%s %s\n",
2041 sha1_to_hex(remote_sha1), ls->dentry_name);
2042 fwrite_buffer(ref_info, 1, len, buf);
2045 if (o->type == OBJ_TAG) {
2046 o = deref_tag(o, ls->dentry_name, 0);
2048 len = strlen(ls->dentry_name) + 45;
2049 ref_info = xcalloc(len + 1, 1);
2050 sprintf(ref_info, "%s %s^{}\n",
2051 sha1_to_hex(o->sha1), ls->dentry_name);
2052 fwrite_buffer(ref_info, 1, len, buf);
2058 static void update_remote_info_refs(struct remote_lock *lock)
2060 struct buffer buffer;
2061 struct active_request_slot *slot;
2062 struct slot_results results;
2064 struct curl_slist *dav_headers = NULL;
2066 buffer.buffer = xcalloc(1, 4096);
2069 remote_ls("refs/", (PROCESS_FILES | RECURSIVE),
2070 add_remote_info_ref, &buffer);
2072 if_header = xmalloc(strlen(lock->token) + 25);
2073 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
2074 dav_headers = curl_slist_append(dav_headers, if_header);
2076 slot = get_active_slot();
2077 slot->results = &results;
2078 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &buffer);
2079 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, buffer.posn);
2080 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
2081 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2082 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
2083 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
2084 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
2085 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
2086 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
2090 if (start_active_slot(slot)) {
2091 run_active_slot(slot);
2092 if (results.curl_result != CURLE_OK) {
2094 "PUT error: curl result=%d, HTTP code=%ld\n",
2095 results.curl_result, results.http_code);
2100 free(buffer.buffer);
2103 static int remote_exists(const char *path)
2105 char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
2106 struct active_request_slot *slot;
2107 struct slot_results results;
2109 sprintf(url, "%s%s", remote->url, path);
2111 slot = get_active_slot();
2112 slot->results = &results;
2113 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2114 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
2116 if (start_active_slot(slot)) {
2117 run_active_slot(slot);
2118 if (results.http_code == 404)
2120 else if (results.curl_result == CURLE_OK)
2123 fprintf(stderr, "HEAD HTTP error %ld\n", results.http_code);
2125 fprintf(stderr, "Unable to start HEAD request\n");
2131 static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
2134 struct buffer buffer;
2135 struct active_request_slot *slot;
2136 struct slot_results results;
2138 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
2139 sprintf(url, "%s%s", remote->url, path);
2143 buffer.buffer = xmalloc(buffer.size);
2145 slot = get_active_slot();
2146 slot->results = &results;
2147 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
2148 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
2149 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
2150 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2151 if (start_active_slot(slot)) {
2152 run_active_slot(slot);
2153 if (results.curl_result != CURLE_OK) {
2154 die("Couldn't get %s for remote symref\n%s",
2155 url, curl_errorstr);
2158 die("Unable to start remote symref request");
2162 if (*symref != NULL)
2167 if (buffer.posn == 0)
2170 /* If it's a symref, set the refname; otherwise try for a sha1 */
2171 if (!prefixcmp((char *)buffer.buffer, "ref: ")) {
2172 *symref = xmemdupz((char *)buffer.buffer + 5, buffer.posn - 6);
2174 get_sha1_hex(buffer.buffer, sha1);
2177 free(buffer.buffer);
2180 static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
2182 struct commit *head = lookup_commit(head_sha1);
2183 struct commit *branch = lookup_commit(branch_sha1);
2184 struct commit_list *merge_bases = get_merge_bases(head, branch, 1);
2186 return (merge_bases && !merge_bases->next && merge_bases->item == branch);
2189 static int delete_remote_branch(char *pattern, int force)
2191 struct ref *refs = remote_refs;
2192 struct ref *remote_ref = NULL;
2193 unsigned char head_sha1[20];
2194 char *symref = NULL;
2196 int patlen = strlen(pattern);
2198 struct active_request_slot *slot;
2199 struct slot_results results;
2202 /* Find the remote branch(es) matching the specified branch name */
2203 for (match = 0; refs; refs = refs->next) {
2204 char *name = refs->name;
2205 int namelen = strlen(name);
2206 if (namelen < patlen ||
2207 memcmp(name + namelen - patlen, pattern, patlen))
2209 if (namelen != patlen && name[namelen - patlen - 1] != '/')
2215 return error("No remote branch matches %s", pattern);
2217 return error("More than one remote branch matches %s",
2221 * Remote HEAD must be a symref (not exactly foolproof; a remote
2222 * symlink to a symref will look like a symref)
2224 fetch_symref("HEAD", &symref, head_sha1);
2226 return error("Remote HEAD is not a symref");
2228 /* Remote branch must not be the remote HEAD */
2229 for (i=0; symref && i<MAXDEPTH; i++) {
2230 if (!strcmp(remote_ref->name, symref))
2231 return error("Remote branch %s is the current HEAD",
2233 fetch_symref(symref, &symref, head_sha1);
2236 /* Run extra sanity checks if delete is not forced */
2238 /* Remote HEAD must resolve to a known object */
2240 return error("Remote HEAD symrefs too deep");
2241 if (is_zero_sha1(head_sha1))
2242 return error("Unable to resolve remote HEAD");
2243 if (!has_sha1_file(head_sha1))
2244 return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", sha1_to_hex(head_sha1));
2246 /* Remote branch must resolve to a known object */
2247 if (is_zero_sha1(remote_ref->old_sha1))
2248 return error("Unable to resolve remote branch %s",
2250 if (!has_sha1_file(remote_ref->old_sha1))
2251 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));
2253 /* Remote branch must be an ancestor of remote HEAD */
2254 if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
2255 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);
2259 /* Send delete request */
2260 fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name);
2261 url = xmalloc(strlen(remote->url) + strlen(remote_ref->name) + 1);
2262 sprintf(url, "%s%s", remote->url, remote_ref->name);
2263 slot = get_active_slot();
2264 slot->results = &results;
2265 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
2266 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2267 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2268 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_DELETE);
2269 if (start_active_slot(slot)) {
2270 run_active_slot(slot);
2272 if (results.curl_result != CURLE_OK)
2273 return error("DELETE request failed (%d/%ld)\n",
2274 results.curl_result, results.http_code);
2277 return error("Unable to start DELETE request");
2283 int main(int argc, char **argv)
2285 struct transfer_request *request;
2286 struct transfer_request *next_request;
2288 char **refspec = NULL;
2289 struct remote_lock *ref_lock = NULL;
2290 struct remote_lock *info_ref_lock = NULL;
2291 struct rev_info revs;
2292 int delete_branch = 0;
2293 int force_delete = 0;
2294 int objects_to_send;
2300 setup_git_directory();
2302 remote = xcalloc(sizeof(*remote), 1);
2305 for (i = 1; i < argc; i++, argv++) {
2309 if (!strcmp(arg, "--all")) {
2313 if (!strcmp(arg, "--force")) {
2317 if (!strcmp(arg, "--verbose")) {
2321 if (!strcmp(arg, "-d")) {
2325 if (!strcmp(arg, "-D")) {
2332 char *path = strstr(arg, "//");
2335 path = strchr(path+2, '/');
2337 remote->path_len = strlen(path);
2342 nr_refspec = argc - i;
2347 usage(http_push_usage);
2349 if (delete_branch && nr_refspec != 1)
2350 die("You must specify only one branch name when deleting a remote branch");
2352 memset(remote_dir_exists, -1, 256);
2356 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
2357 default_headers = curl_slist_append(default_headers, "Range:");
2358 default_headers = curl_slist_append(default_headers, "Destination:");
2359 default_headers = curl_slist_append(default_headers, "If:");
2360 default_headers = curl_slist_append(default_headers,
2361 "Pragma: no-cache");
2363 /* Verify DAV compliance/lock support */
2364 if (!locking_available()) {
2365 fprintf(stderr, "Error: no DAV locking support on remote repo %s\n", remote->url);
2370 /* Check whether the remote has server info files */
2371 remote->can_update_info_refs = 0;
2372 remote->has_info_refs = remote_exists("info/refs");
2373 remote->has_info_packs = remote_exists("objects/info/packs");
2374 if (remote->has_info_refs) {
2375 info_ref_lock = lock_remote("info/refs", LOCK_TIME);
2377 remote->can_update_info_refs = 1;
2379 if (remote->has_info_packs)
2382 /* Get a list of all local and remote heads to validate refspecs */
2384 fprintf(stderr, "Fetching remote heads...\n");
2385 get_dav_remote_heads();
2387 /* Remove a remote branch if -d or -D was specified */
2388 if (delete_branch) {
2389 if (delete_remote_branch(refspec[0], force_delete) == -1)
2390 fprintf(stderr, "Unable to delete remote branch %s\n",
2397 remote_tail = &remote_refs;
2398 if (match_refs(local_refs, remote_refs, &remote_tail,
2399 nr_refspec, refspec, push_all))
2402 fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
2407 for (ref = remote_refs; ref; ref = ref->next) {
2408 char old_hex[60], *new_hex;
2409 const char *commit_argv[4];
2411 char *new_sha1_hex, *old_sha1_hex;
2415 if (!hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
2416 if (push_verbosely || 1)
2417 fprintf(stderr, "'%s': up-to-date\n", ref->name);
2422 !is_zero_sha1(ref->old_sha1) &&
2424 if (!has_sha1_file(ref->old_sha1) ||
2425 !ref_newer(ref->peer_ref->new_sha1,
2427 /* We do not have the remote ref, or
2428 * we know that the remote ref is not
2429 * an ancestor of what we are trying to
2430 * push. Either way this can be losing
2431 * commits at the remote end and likely
2432 * we were not up to date to begin with.
2434 error("remote '%s' is not a strict "
2435 "subset of local ref '%s'. "
2436 "maybe you are not up-to-date and "
2437 "need to pull first?",
2439 ref->peer_ref->name);
2444 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
2445 if (is_zero_sha1(ref->new_sha1)) {
2446 error("cannot happen anymore");
2451 strcpy(old_hex, sha1_to_hex(ref->old_sha1));
2452 new_hex = sha1_to_hex(ref->new_sha1);
2454 fprintf(stderr, "updating '%s'", ref->name);
2455 if (strcmp(ref->name, ref->peer_ref->name))
2456 fprintf(stderr, " using '%s'", ref->peer_ref->name);
2457 fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
2460 /* Lock remote branch ref */
2461 ref_lock = lock_remote(ref->name, LOCK_TIME);
2462 if (ref_lock == NULL) {
2463 fprintf(stderr, "Unable to lock remote branch %s\n",
2469 /* Set up revision info for this refspec */
2471 new_sha1_hex = xstrdup(sha1_to_hex(ref->new_sha1));
2472 old_sha1_hex = NULL;
2473 commit_argv[1] = "--objects";
2474 commit_argv[2] = new_sha1_hex;
2475 if (!push_all && !is_zero_sha1(ref->old_sha1)) {
2476 old_sha1_hex = xmalloc(42);
2477 sprintf(old_sha1_hex, "^%s",
2478 sha1_to_hex(ref->old_sha1));
2479 commit_argv[3] = old_sha1_hex;
2482 init_revisions(&revs, setup_git_directory());
2483 setup_revisions(commit_argc, commit_argv, &revs, NULL);
2487 commit_argv[1] = NULL;
2490 /* Generate a list of objects that need to be pushed */
2492 prepare_revision_walk(&revs);
2493 mark_edges_uninteresting(revs.commits);
2494 objects_to_send = get_delta(&revs, ref_lock);
2495 finish_all_active_slots();
2497 /* Push missing objects to remote, this would be a
2498 convenient time to pack them first if appropriate. */
2500 if (objects_to_send)
2501 fprintf(stderr, " sending %d objects\n",
2503 #ifdef USE_CURL_MULTI
2504 fill_active_slots();
2506 finish_all_active_slots();
2508 /* Update the remote branch if all went well */
2509 if (aborted || !update_remote(ref->new_sha1, ref_lock)) {
2516 fprintf(stderr, " done\n");
2517 unlock_remote(ref_lock);
2521 /* Update remote server info if appropriate */
2522 if (remote->has_info_refs && new_refs) {
2523 if (info_ref_lock && remote->can_update_info_refs) {
2524 fprintf(stderr, "Updating remote server info\n");
2525 update_remote_info_refs(info_ref_lock);
2527 fprintf(stderr, "Unable to update server info\n");
2531 unlock_remote(info_ref_lock);
2536 curl_slist_free_all(no_pragma_header);
2537 curl_slist_free_all(default_headers);
2541 request = request_queue_head;
2542 while (request != NULL) {
2543 next_request = request->next;
2544 release_request(request);
2545 request = next_request;