12 #include "list-objects.h"
17 static const char http_push_usage[] =
18 "git http-push [--all] [--dry-run] [--force] [--verbose] <remote> [<head>...]\n";
25 #define XML_STATUS_OK 1
26 #define XML_STATUS_ERROR 0
29 #define PREV_BUF_SIZE 4096
30 #define RANGE_HEADER_SIZE 30
33 #define DAV_LOCK "LOCK"
34 #define DAV_MKCOL "MKCOL"
35 #define DAV_MOVE "MOVE"
36 #define DAV_PROPFIND "PROPFIND"
38 #define DAV_UNLOCK "UNLOCK"
39 #define DAV_DELETE "DELETE"
42 #define DAV_PROP_LOCKWR (1u << 0)
43 #define DAV_PROP_LOCKEX (1u << 1)
44 #define DAV_LOCK_OK (1u << 2)
46 /* DAV XML properties */
47 #define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry"
48 #define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write"
49 #define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive"
50 #define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href"
51 #define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout"
52 #define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href"
53 #define DAV_PROPFIND_RESP ".multistatus.response"
54 #define DAV_PROPFIND_NAME ".multistatus.response.href"
55 #define DAV_PROPFIND_COLLECTION ".multistatus.response.propstat.prop.resourcetype.collection"
57 /* DAV request body templates */
58 #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>"
59 #define PROPFIND_ALL_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:allprop/>\n</D:propfind>"
60 #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>"
63 #define LOCK_REFRESH 30
65 /* bits #0-15 in revision.h */
67 #define LOCAL (1u<<16)
68 #define REMOTE (1u<<17)
69 #define FETCHING (1u<<18)
70 #define PUSHING (1u<<19)
72 /* We allow "recursive" symbolic refs. Only within reason, though */
77 static signed char remote_dir_exists[256];
79 static struct curl_slist *no_pragma_header;
81 static int push_verbosely;
82 static int push_all = MATCH_REFS_NONE;
86 static struct object_list *objects;
94 int can_update_info_refs;
96 struct packed_git *packs;
97 struct remote_lock *locks;
100 static struct repo *repo;
102 enum transfer_state {
114 struct transfer_request
119 struct remote_lock *lock;
120 struct curl_slist *headers;
121 struct buffer buffer;
122 char filename[PATH_MAX];
123 char tmpfile[PATH_MAX];
126 enum transfer_state state;
127 CURLcode curl_result;
128 char errorstr[CURL_ERROR_SIZE];
130 unsigned char real_sha1[20];
136 struct active_request_slot *slot;
137 struct transfer_request *next;
140 static struct transfer_request *request_queue_head;
147 void (*userFunc)(struct xml_ctx *ctx, int tag_closed);
156 char tmpfile_suffix[41];
160 struct remote_lock *next;
163 /* Flags that control remote_ls processing */
164 #define PROCESS_FILES (1u << 0)
165 #define PROCESS_DIRS (1u << 1)
166 #define RECURSIVE (1u << 2)
168 /* Flags that remote_ls passes to callback functions */
169 #define IS_DIR (1u << 0)
174 void (*userFunc)(struct remote_ls_ctx *ls);
179 struct remote_ls_ctx *parent;
182 /* get_dav_token_headers options */
183 enum dav_header_flag {
184 DAV_HEADER_IF = (1u << 0),
185 DAV_HEADER_LOCK = (1u << 1),
186 DAV_HEADER_TIMEOUT = (1u << 2)
189 static struct curl_slist *get_dav_token_headers(struct remote_lock *lock, enum dav_header_flag options)
191 struct strbuf buf = STRBUF_INIT;
192 struct curl_slist *dav_headers = NULL;
194 if (options & DAV_HEADER_IF) {
195 strbuf_addf(&buf, "If: (<%s>)", lock->token);
196 dav_headers = curl_slist_append(dav_headers, buf.buf);
199 if (options & DAV_HEADER_LOCK) {
200 strbuf_addf(&buf, "Lock-Token: <%s>", lock->token);
201 dav_headers = curl_slist_append(dav_headers, buf.buf);
204 if (options & DAV_HEADER_TIMEOUT) {
205 strbuf_addf(&buf, "Timeout: Second-%ld", lock->timeout);
206 dav_headers = curl_slist_append(dav_headers, buf.buf);
209 strbuf_release(&buf);
214 static void append_remote_object_url(struct strbuf *buf, const char *url,
216 int only_two_digit_prefix)
218 strbuf_addf(buf, "%sobjects/%.*s/", url, 2, hex);
219 if (!only_two_digit_prefix)
220 strbuf_addf(buf, "%s", hex+2);
223 static void finish_request(struct transfer_request *request);
224 static void release_request(struct transfer_request *request);
226 static void process_response(void *callback_data)
228 struct transfer_request *request =
229 (struct transfer_request *)callback_data;
231 finish_request(request);
234 #ifdef USE_CURL_MULTI
236 static char *get_remote_object_url(const char *url, const char *hex,
237 int only_two_digit_prefix)
239 struct strbuf buf = STRBUF_INIT;
240 append_remote_object_url(&buf, url, hex, only_two_digit_prefix);
241 return strbuf_detach(&buf, NULL);
244 static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
247 unsigned char expn[4096];
248 size_t size = eltsize * nmemb;
250 struct transfer_request *request = (struct transfer_request *)data;
252 ssize_t retval = xwrite(request->local_fileno,
253 (char *) ptr + posn, size - posn);
257 } while (posn < size);
259 request->stream.avail_in = size;
260 request->stream.next_in = ptr;
262 request->stream.next_out = expn;
263 request->stream.avail_out = sizeof(expn);
264 request->zret = git_inflate(&request->stream, Z_SYNC_FLUSH);
265 git_SHA1_Update(&request->c, expn,
266 sizeof(expn) - request->stream.avail_out);
267 } while (request->stream.avail_in && request->zret == Z_OK);
272 static void start_fetch_loose(struct transfer_request *request)
274 char *hex = sha1_to_hex(request->obj->sha1);
276 char prevfile[PATH_MAX];
279 unsigned char prev_buf[PREV_BUF_SIZE];
280 ssize_t prev_read = 0;
282 char range[RANGE_HEADER_SIZE];
283 struct curl_slist *range_header = NULL;
284 struct active_request_slot *slot;
286 filename = sha1_file_name(request->obj->sha1);
287 snprintf(request->filename, sizeof(request->filename), "%s", filename);
288 snprintf(request->tmpfile, sizeof(request->tmpfile),
289 "%s.temp", filename);
291 snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename);
293 rename(request->tmpfile, prevfile);
294 unlink(request->tmpfile);
296 if (request->local_fileno != -1)
297 error("fd leakage in start: %d", request->local_fileno);
298 request->local_fileno = open(request->tmpfile,
299 O_WRONLY | O_CREAT | O_EXCL, 0666);
300 /* This could have failed due to the "lazy directory creation";
301 * try to mkdir the last path component.
303 if (request->local_fileno < 0 && errno == ENOENT) {
304 char *dir = strrchr(request->tmpfile, '/');
307 mkdir(request->tmpfile, 0777);
310 request->local_fileno = open(request->tmpfile,
311 O_WRONLY | O_CREAT | O_EXCL, 0666);
314 if (request->local_fileno < 0) {
315 request->state = ABORTED;
316 error("Couldn't create temporary file %s for %s: %s",
317 request->tmpfile, request->filename, strerror(errno));
321 memset(&request->stream, 0, sizeof(request->stream));
323 git_inflate_init(&request->stream);
325 git_SHA1_Init(&request->c);
327 url = get_remote_object_url(repo->url, hex, 0);
328 request->url = xstrdup(url);
330 /* If a previous temp file is present, process what was already
332 prevlocal = open(prevfile, O_RDONLY);
333 if (prevlocal != -1) {
335 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
337 if (fwrite_sha1_file(prev_buf,
340 request) == prev_read) {
341 prev_posn += prev_read;
346 } while (prev_read > 0);
351 /* Reset inflate/SHA1 if there was an error reading the previous temp
352 file; also rewind to the beginning of the local file. */
353 if (prev_read == -1) {
354 memset(&request->stream, 0, sizeof(request->stream));
355 git_inflate_init(&request->stream);
356 git_SHA1_Init(&request->c);
359 lseek(request->local_fileno, 0, SEEK_SET);
360 ftruncate(request->local_fileno, 0);
364 slot = get_active_slot();
365 slot->callback_func = process_response;
366 slot->callback_data = request;
367 request->slot = slot;
369 curl_easy_setopt(slot->curl, CURLOPT_FILE, request);
370 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
371 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
372 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
373 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
375 /* If we have successfully processed data from a previous fetch
376 attempt, only fetch the data we don't already have. */
380 "Resuming fetch of object %s at byte %ld\n",
382 sprintf(range, "Range: bytes=%ld-", prev_posn);
383 range_header = curl_slist_append(range_header, range);
384 curl_easy_setopt(slot->curl,
385 CURLOPT_HTTPHEADER, range_header);
388 /* Try to get the request started, abort the request on error */
389 request->state = RUN_FETCH_LOOSE;
390 if (!start_active_slot(slot)) {
391 fprintf(stderr, "Unable to start GET request\n");
392 repo->can_update_info_refs = 0;
393 release_request(request);
397 static void start_mkcol(struct transfer_request *request)
399 char *hex = sha1_to_hex(request->obj->sha1);
400 struct active_request_slot *slot;
402 request->url = get_remote_object_url(repo->url, hex, 1);
404 slot = get_active_slot();
405 slot->callback_func = process_response;
406 slot->callback_data = request;
407 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
408 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
409 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
410 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
411 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
413 if (start_active_slot(slot)) {
414 request->slot = slot;
415 request->state = RUN_MKCOL;
417 request->state = ABORTED;
424 static void start_fetch_packed(struct transfer_request *request)
427 struct packed_git *target;
431 char range[RANGE_HEADER_SIZE];
432 struct curl_slist *range_header = NULL;
434 struct transfer_request *check_request = request_queue_head;
435 struct active_request_slot *slot;
437 target = find_sha1_pack(request->obj->sha1, repo->packs);
439 fprintf(stderr, "Unable to fetch %s, will not be able to update server info refs\n", sha1_to_hex(request->obj->sha1));
440 repo->can_update_info_refs = 0;
441 release_request(request);
445 fprintf(stderr, "Fetching pack %s\n", sha1_to_hex(target->sha1));
446 fprintf(stderr, " which contains %s\n", sha1_to_hex(request->obj->sha1));
448 filename = sha1_pack_name(target->sha1);
449 snprintf(request->filename, sizeof(request->filename), "%s", filename);
450 snprintf(request->tmpfile, sizeof(request->tmpfile),
451 "%s.temp", filename);
453 url = xmalloc(strlen(repo->url) + 64);
454 sprintf(url, "%sobjects/pack/pack-%s.pack",
455 repo->url, sha1_to_hex(target->sha1));
457 /* Make sure there isn't another open request for this pack */
458 while (check_request) {
459 if (check_request->state == RUN_FETCH_PACKED &&
460 !strcmp(check_request->url, url)) {
462 release_request(request);
465 check_request = check_request->next;
468 packfile = fopen(request->tmpfile, "a");
470 fprintf(stderr, "Unable to open local file %s for pack",
472 repo->can_update_info_refs = 0;
477 slot = get_active_slot();
478 slot->callback_func = process_response;
479 slot->callback_data = request;
480 request->slot = slot;
481 request->local_stream = packfile;
482 request->userData = target;
485 curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile);
486 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
487 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
488 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
489 slot->local = packfile;
491 /* If there is data present from a previous transfer attempt,
492 resume where it left off */
493 prev_posn = ftell(packfile);
497 "Resuming fetch of pack %s at byte %ld\n",
498 sha1_to_hex(target->sha1), prev_posn);
499 sprintf(range, "Range: bytes=%ld-", prev_posn);
500 range_header = curl_slist_append(range_header, range);
501 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
504 /* Try to get the request started, abort the request on error */
505 request->state = RUN_FETCH_PACKED;
506 if (!start_active_slot(slot)) {
507 fprintf(stderr, "Unable to start GET request\n");
508 repo->can_update_info_refs = 0;
509 release_request(request);
513 static void start_put(struct transfer_request *request)
515 char *hex = sha1_to_hex(request->obj->sha1);
516 struct active_request_slot *slot;
517 struct strbuf buf = STRBUF_INIT;
518 enum object_type type;
526 unpacked = read_sha1_file(request->obj->sha1, &type, &len);
527 hdrlen = sprintf(hdr, "%s %lu", typename(type), len) + 1;
530 memset(&stream, 0, sizeof(stream));
531 deflateInit(&stream, zlib_compression_level);
532 size = deflateBound(&stream, len + hdrlen);
533 strbuf_init(&request->buffer.buf, size);
534 request->buffer.posn = 0;
537 stream.next_out = (unsigned char *)request->buffer.buf.buf;
538 stream.avail_out = size;
541 stream.next_in = (void *)hdr;
542 stream.avail_in = hdrlen;
543 while (deflate(&stream, 0) == Z_OK)
546 /* Then the data itself.. */
547 stream.next_in = unpacked;
548 stream.avail_in = len;
549 while (deflate(&stream, Z_FINISH) == Z_OK)
554 request->buffer.buf.len = stream.total_out;
556 strbuf_addstr(&buf, "Destination: ");
557 append_remote_object_url(&buf, repo->url, hex, 0);
558 request->dest = strbuf_detach(&buf, NULL);
560 append_remote_object_url(&buf, repo->url, hex, 0);
561 strbuf_add(&buf, request->lock->tmpfile_suffix, 41);
562 request->url = strbuf_detach(&buf, NULL);
564 slot = get_active_slot();
565 slot->callback_func = process_response;
566 slot->callback_data = request;
567 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer);
568 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.buf.len);
569 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
570 #ifndef NO_CURL_IOCTL
571 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer);
572 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, &request->buffer);
574 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
575 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
576 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
577 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
578 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
579 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
581 if (start_active_slot(slot)) {
582 request->slot = slot;
583 request->state = RUN_PUT;
585 request->state = ABORTED;
591 static void start_move(struct transfer_request *request)
593 struct active_request_slot *slot;
594 struct curl_slist *dav_headers = NULL;
596 slot = get_active_slot();
597 slot->callback_func = process_response;
598 slot->callback_data = request;
599 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
600 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MOVE);
601 dav_headers = curl_slist_append(dav_headers, request->dest);
602 dav_headers = curl_slist_append(dav_headers, "Overwrite: T");
603 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
604 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
605 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
607 if (start_active_slot(slot)) {
608 request->slot = slot;
609 request->state = RUN_MOVE;
611 request->state = ABORTED;
617 static int refresh_lock(struct remote_lock *lock)
619 struct active_request_slot *slot;
620 struct slot_results results;
621 struct curl_slist *dav_headers;
624 lock->refreshing = 1;
626 dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF | DAV_HEADER_TIMEOUT);
628 slot = get_active_slot();
629 slot->results = &results;
630 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
631 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
632 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
633 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
634 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
636 if (start_active_slot(slot)) {
637 run_active_slot(slot);
638 if (results.curl_result != CURLE_OK) {
639 fprintf(stderr, "LOCK HTTP error %ld\n",
642 lock->start_time = time(NULL);
647 lock->refreshing = 0;
648 curl_slist_free_all(dav_headers);
653 static void check_locks(void)
655 struct remote_lock *lock = repo->locks;
656 time_t current_time = time(NULL);
660 time_remaining = lock->start_time + lock->timeout -
662 if (!lock->refreshing && time_remaining < LOCK_REFRESH) {
663 if (!refresh_lock(lock)) {
665 "Unable to refresh lock for %s\n",
675 static void release_request(struct transfer_request *request)
677 struct transfer_request *entry = request_queue_head;
679 if (request == request_queue_head) {
680 request_queue_head = request->next;
682 while (entry->next != NULL && entry->next != request)
684 if (entry->next == request)
685 entry->next = entry->next->next;
688 if (request->local_fileno != -1)
689 close(request->local_fileno);
690 if (request->local_stream)
691 fclose(request->local_stream);
696 static void finish_request(struct transfer_request *request)
699 struct packed_git *target;
700 struct packed_git **lst;
702 request->curl_result = request->slot->curl_result;
703 request->http_code = request->slot->http_code;
704 request->slot = NULL;
706 /* Keep locks active */
709 if (request->headers != NULL)
710 curl_slist_free_all(request->headers);
712 /* URL is reused for MOVE after PUT */
713 if (request->state != RUN_PUT) {
718 if (request->state == RUN_MKCOL) {
719 if (request->curl_result == CURLE_OK ||
720 request->http_code == 405) {
721 remote_dir_exists[request->obj->sha1[0]] = 1;
724 fprintf(stderr, "MKCOL %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_PUT) {
731 if (request->curl_result == CURLE_OK) {
734 fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n",
735 sha1_to_hex(request->obj->sha1),
736 request->curl_result, request->http_code);
737 request->state = ABORTED;
740 } else if (request->state == RUN_MOVE) {
741 if (request->curl_result == CURLE_OK) {
743 fprintf(stderr, " sent %s\n",
744 sha1_to_hex(request->obj->sha1));
745 request->obj->flags |= REMOTE;
746 release_request(request);
748 fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n",
749 sha1_to_hex(request->obj->sha1),
750 request->curl_result, request->http_code);
751 request->state = ABORTED;
754 } else if (request->state == RUN_FETCH_LOOSE) {
755 close(request->local_fileno); request->local_fileno = -1;
757 if (request->curl_result != CURLE_OK &&
758 request->http_code != 416) {
759 if (stat(request->tmpfile, &st) == 0) {
761 unlink(request->tmpfile);
764 if (request->http_code == 416)
765 warning("requested range invalid; we may already have all the data.");
767 git_inflate_end(&request->stream);
768 git_SHA1_Final(request->real_sha1, &request->c);
769 if (request->zret != Z_STREAM_END) {
770 unlink(request->tmpfile);
771 } else if (hashcmp(request->obj->sha1, request->real_sha1)) {
772 unlink(request->tmpfile);
778 if (request->rename == 0) {
779 request->obj->flags |= (LOCAL | REMOTE);
784 /* Try fetching packed if necessary */
785 if (request->obj->flags & LOCAL)
786 release_request(request);
788 start_fetch_packed(request);
790 } else if (request->state == RUN_FETCH_PACKED) {
791 if (request->curl_result != CURLE_OK) {
792 fprintf(stderr, "Unable to get pack file %s\n%s",
793 request->url, curl_errorstr);
794 repo->can_update_info_refs = 0;
796 off_t pack_size = ftell(request->local_stream);
798 fclose(request->local_stream);
799 request->local_stream = NULL;
800 if (!move_temp_to_file(request->tmpfile,
801 request->filename)) {
802 target = (struct packed_git *)request->userData;
803 target->pack_size = pack_size;
805 while (*lst != target)
806 lst = &((*lst)->next);
809 if (!verify_pack(target))
810 install_packed_git(target);
812 repo->can_update_info_refs = 0;
815 release_request(request);
819 #ifdef USE_CURL_MULTI
820 static int fill_active_slot(void *unused)
822 struct transfer_request *request;
827 for (request = request_queue_head; request; request = request->next) {
828 if (request->state == NEED_FETCH) {
829 start_fetch_loose(request);
831 } else if (pushing && request->state == NEED_PUSH) {
832 if (remote_dir_exists[request->obj->sha1[0]] == 1) {
835 start_mkcol(request);
844 static void get_remote_object_list(unsigned char parent);
846 static void add_fetch_request(struct object *obj)
848 struct transfer_request *request;
853 * Don't fetch the object if it's known to exist locally
854 * or is already in the request queue
856 if (remote_dir_exists[obj->sha1[0]] == -1)
857 get_remote_object_list(obj->sha1[0]);
858 if (obj->flags & (LOCAL | FETCHING))
861 obj->flags |= FETCHING;
862 request = xmalloc(sizeof(*request));
865 request->lock = NULL;
866 request->headers = NULL;
867 request->local_fileno = -1;
868 request->local_stream = NULL;
869 request->state = NEED_FETCH;
870 request->next = request_queue_head;
871 request_queue_head = request;
873 #ifdef USE_CURL_MULTI
879 static int add_send_request(struct object *obj, struct remote_lock *lock)
881 struct transfer_request *request = request_queue_head;
882 struct packed_git *target;
884 /* Keep locks active */
888 * Don't push the object if it's known to exist on the remote
889 * or is already in the request queue
891 if (remote_dir_exists[obj->sha1[0]] == -1)
892 get_remote_object_list(obj->sha1[0]);
893 if (obj->flags & (REMOTE | PUSHING))
895 target = find_sha1_pack(obj->sha1, repo->packs);
897 obj->flags |= REMOTE;
901 obj->flags |= PUSHING;
902 request = xmalloc(sizeof(*request));
905 request->lock = lock;
906 request->headers = NULL;
907 request->local_fileno = -1;
908 request->local_stream = NULL;
909 request->state = NEED_PUSH;
910 request->next = request_queue_head;
911 request_queue_head = request;
913 #ifdef USE_CURL_MULTI
921 static int fetch_index(unsigned char *sha1)
923 char *hex = sha1_to_hex(sha1);
926 char tmpfile[PATH_MAX];
928 char range[RANGE_HEADER_SIZE];
929 struct curl_slist *range_header = NULL;
932 struct active_request_slot *slot;
933 struct slot_results results;
935 /* Don't use the index if the pack isn't there */
936 url = xmalloc(strlen(repo->url) + 64);
937 sprintf(url, "%sobjects/pack/pack-%s.pack", repo->url, hex);
938 slot = get_active_slot();
939 slot->results = &results;
940 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
941 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
942 if (start_active_slot(slot)) {
943 run_active_slot(slot);
944 if (results.curl_result != CURLE_OK) {
946 return error("Unable to verify pack %s is available",
951 return error("Unable to start request");
954 if (has_pack_index(sha1)) {
960 fprintf(stderr, "Getting index for pack %s\n", hex);
962 sprintf(url, "%sobjects/pack/pack-%s.idx", repo->url, hex);
964 filename = sha1_pack_index_name(sha1);
965 snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
966 indexfile = fopen(tmpfile, "a");
969 return error("Unable to open local file %s for pack index",
973 slot = get_active_slot();
974 slot->results = &results;
975 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
976 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
977 curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile);
978 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
979 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
980 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
981 slot->local = indexfile;
983 /* If there is data present from a previous transfer attempt,
984 resume where it left off */
985 prev_posn = ftell(indexfile);
989 "Resuming fetch of index for pack %s at byte %ld\n",
991 sprintf(range, "Range: bytes=%ld-", prev_posn);
992 range_header = curl_slist_append(range_header, range);
993 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
996 if (start_active_slot(slot)) {
997 run_active_slot(slot);
998 if (results.curl_result != CURLE_OK) {
1001 return error("Unable to get pack index %s\n%s", url,
1007 return error("Unable to start request");
1013 return move_temp_to_file(tmpfile, filename);
1016 static int setup_index(unsigned char *sha1)
1018 struct packed_git *new_pack;
1020 if (fetch_index(sha1))
1023 new_pack = parse_pack_index(sha1);
1024 new_pack->next = repo->packs;
1025 repo->packs = new_pack;
1029 static int fetch_indices(void)
1031 unsigned char sha1[20];
1033 struct strbuf buffer = STRBUF_INIT;
1037 struct active_request_slot *slot;
1038 struct slot_results results;
1041 fprintf(stderr, "Getting pack list\n");
1043 url = xmalloc(strlen(repo->url) + 20);
1044 sprintf(url, "%sobjects/info/packs", repo->url);
1046 slot = get_active_slot();
1047 slot->results = &results;
1048 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
1049 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1050 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1051 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
1052 if (start_active_slot(slot)) {
1053 run_active_slot(slot);
1054 if (results.curl_result != CURLE_OK) {
1055 strbuf_release(&buffer);
1057 if (results.http_code == 404)
1060 return error("%s", curl_errorstr);
1063 strbuf_release(&buffer);
1065 return error("Unable to start request");
1070 while (i < buffer.len) {
1074 if (i + 52 < buffer.len &&
1075 !prefixcmp(data + i, " pack-") &&
1076 !prefixcmp(data + i + 46, ".pack\n")) {
1077 get_sha1_hex(data + i + 6, sha1);
1083 while (data[i] != '\n')
1089 strbuf_release(&buffer);
1093 static void one_remote_object(const char *hex)
1095 unsigned char sha1[20];
1098 if (get_sha1_hex(hex, sha1) != 0)
1101 obj = lookup_object(sha1);
1103 obj = parse_object(sha1);
1105 /* Ignore remote objects that don't exist locally */
1109 obj->flags |= REMOTE;
1110 if (!object_list_contains(objects, obj))
1111 object_list_insert(obj, &objects);
1114 static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
1116 int *lock_flags = (int *)ctx->userData;
1119 if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) {
1120 if ((*lock_flags & DAV_PROP_LOCKEX) &&
1121 (*lock_flags & DAV_PROP_LOCKWR)) {
1122 *lock_flags |= DAV_LOCK_OK;
1124 *lock_flags &= DAV_LOCK_OK;
1125 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) {
1126 *lock_flags |= DAV_PROP_LOCKWR;
1127 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) {
1128 *lock_flags |= DAV_PROP_LOCKEX;
1133 static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
1135 struct remote_lock *lock = (struct remote_lock *)ctx->userData;
1136 git_SHA_CTX sha_ctx;
1137 unsigned char lock_token_sha1[20];
1139 if (tag_closed && ctx->cdata) {
1140 if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
1141 lock->owner = xmalloc(strlen(ctx->cdata) + 1);
1142 strcpy(lock->owner, ctx->cdata);
1143 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) {
1144 if (!prefixcmp(ctx->cdata, "Second-"))
1146 strtol(ctx->cdata + 7, NULL, 10);
1147 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
1148 lock->token = xmalloc(strlen(ctx->cdata) + 1);
1149 strcpy(lock->token, ctx->cdata);
1151 git_SHA1_Init(&sha_ctx);
1152 git_SHA1_Update(&sha_ctx, lock->token, strlen(lock->token));
1153 git_SHA1_Final(lock_token_sha1, &sha_ctx);
1155 lock->tmpfile_suffix[0] = '_';
1156 memcpy(lock->tmpfile_suffix + 1, sha1_to_hex(lock_token_sha1), 40);
1161 static void one_remote_ref(char *refname);
1164 xml_start_tag(void *userData, const char *name, const char **atts)
1166 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1167 const char *c = strchr(name, ':');
1175 new_len = strlen(ctx->name) + strlen(c) + 2;
1177 if (new_len > ctx->len) {
1178 ctx->name = xrealloc(ctx->name, new_len);
1181 strcat(ctx->name, ".");
1182 strcat(ctx->name, c);
1187 ctx->userFunc(ctx, 0);
1191 xml_end_tag(void *userData, const char *name)
1193 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1194 const char *c = strchr(name, ':');
1197 ctx->userFunc(ctx, 1);
1204 ep = ctx->name + strlen(ctx->name) - strlen(c) - 1;
1209 xml_cdata(void *userData, const XML_Char *s, int len)
1211 struct xml_ctx *ctx = (struct xml_ctx *)userData;
1213 ctx->cdata = xmemdupz(s, len);
1216 static struct remote_lock *lock_remote(const char *path, long timeout)
1218 struct active_request_slot *slot;
1219 struct slot_results results;
1220 struct buffer out_buffer = { STRBUF_INIT, 0 };
1221 struct strbuf in_buffer = STRBUF_INIT;
1224 char timeout_header[25];
1225 struct remote_lock *lock = NULL;
1226 struct curl_slist *dav_headers = NULL;
1229 url = xmalloc(strlen(repo->url) + strlen(path) + 1);
1230 sprintf(url, "%s%s", repo->url, path);
1232 /* Make sure leading directories exist for the remote ref */
1233 ep = strchr(url + strlen(repo->url) + 1, '/');
1235 char saved_character = ep[1];
1237 slot = get_active_slot();
1238 slot->results = &results;
1239 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1240 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1241 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
1242 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1243 if (start_active_slot(slot)) {
1244 run_active_slot(slot);
1245 if (results.curl_result != CURLE_OK &&
1246 results.http_code != 405) {
1248 "Unable to create branch path %s\n",
1254 fprintf(stderr, "Unable to start MKCOL request\n");
1258 ep[1] = saved_character;
1259 ep = strchr(ep + 1, '/');
1262 strbuf_addf(&out_buffer.buf, LOCK_REQUEST, git_default_email);
1264 sprintf(timeout_header, "Timeout: Second-%ld", timeout);
1265 dav_headers = curl_slist_append(dav_headers, timeout_header);
1266 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1268 slot = get_active_slot();
1269 slot->results = &results;
1270 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1271 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
1272 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1273 #ifndef NO_CURL_IOCTL
1274 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer);
1275 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, &out_buffer);
1277 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1278 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1279 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1280 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1281 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
1282 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1284 lock = xcalloc(1, sizeof(*lock));
1287 if (start_active_slot(slot)) {
1288 run_active_slot(slot);
1289 if (results.curl_result == CURLE_OK) {
1290 XML_Parser parser = XML_ParserCreate(NULL);
1291 enum XML_Status result;
1292 ctx.name = xcalloc(10, 1);
1295 ctx.userFunc = handle_new_lock_ctx;
1296 ctx.userData = lock;
1297 XML_SetUserData(parser, &ctx);
1298 XML_SetElementHandler(parser, xml_start_tag,
1300 XML_SetCharacterDataHandler(parser, xml_cdata);
1301 result = XML_Parse(parser, in_buffer.buf,
1304 if (result != XML_STATUS_OK) {
1305 fprintf(stderr, "XML error: %s\n",
1307 XML_GetErrorCode(parser)));
1310 XML_ParserFree(parser);
1313 fprintf(stderr, "Unable to start LOCK request\n");
1316 curl_slist_free_all(dav_headers);
1317 strbuf_release(&out_buffer.buf);
1318 strbuf_release(&in_buffer);
1320 if (lock->token == NULL || lock->timeout <= 0) {
1328 lock->start_time = time(NULL);
1329 lock->next = repo->locks;
1336 static int unlock_remote(struct remote_lock *lock)
1338 struct active_request_slot *slot;
1339 struct slot_results results;
1340 struct remote_lock *prev = repo->locks;
1341 struct curl_slist *dav_headers;
1344 dav_headers = get_dav_token_headers(lock, DAV_HEADER_LOCK);
1346 slot = get_active_slot();
1347 slot->results = &results;
1348 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1349 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1350 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK);
1351 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1353 if (start_active_slot(slot)) {
1354 run_active_slot(slot);
1355 if (results.curl_result == CURLE_OK)
1358 fprintf(stderr, "UNLOCK HTTP error %ld\n",
1361 fprintf(stderr, "Unable to start UNLOCK request\n");
1364 curl_slist_free_all(dav_headers);
1366 if (repo->locks == lock) {
1367 repo->locks = lock->next;
1369 while (prev && prev->next != lock)
1372 prev->next = prev->next->next;
1383 static void remove_locks(void)
1385 struct remote_lock *lock = repo->locks;
1387 fprintf(stderr, "Removing remote locks...\n");
1389 unlock_remote(lock);
1394 static void remove_locks_on_signal(int signo)
1397 sigchain_pop(signo);
1401 static void remote_ls(const char *path, int flags,
1402 void (*userFunc)(struct remote_ls_ctx *ls),
1405 static void process_ls_object(struct remote_ls_ctx *ls)
1407 unsigned int *parent = (unsigned int *)ls->userData;
1408 char *path = ls->dentry_name;
1411 if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) {
1412 remote_dir_exists[*parent] = 1;
1416 if (strlen(path) != 49)
1419 obj_hex = xmalloc(strlen(path));
1420 /* NB: path is not null-terminated, can not use strlcpy here */
1421 memcpy(obj_hex, path, 2);
1422 strcpy(obj_hex + 2, path + 3);
1423 one_remote_object(obj_hex);
1427 static void process_ls_ref(struct remote_ls_ctx *ls)
1429 if (!strcmp(ls->path, ls->dentry_name) && (ls->dentry_flags & IS_DIR)) {
1430 fprintf(stderr, " %s\n", ls->dentry_name);
1434 if (!(ls->dentry_flags & IS_DIR))
1435 one_remote_ref(ls->dentry_name);
1438 static void handle_remote_ls_ctx(struct xml_ctx *ctx, int tag_closed)
1440 struct remote_ls_ctx *ls = (struct remote_ls_ctx *)ctx->userData;
1443 if (!strcmp(ctx->name, DAV_PROPFIND_RESP) && ls->dentry_name) {
1444 if (ls->dentry_flags & IS_DIR) {
1445 if (ls->flags & PROCESS_DIRS) {
1448 if (strcmp(ls->dentry_name, ls->path) &&
1449 ls->flags & RECURSIVE) {
1450 remote_ls(ls->dentry_name,
1455 } else if (ls->flags & PROCESS_FILES) {
1458 } else if (!strcmp(ctx->name, DAV_PROPFIND_NAME) && ctx->cdata) {
1459 char *path = ctx->cdata;
1460 if (*ctx->cdata == 'h') {
1461 path = strstr(path, "//");
1463 path = strchr(path+2, '/');
1467 path += repo->path_len;
1468 ls->dentry_name = xstrdup(path);
1470 } else if (!strcmp(ctx->name, DAV_PROPFIND_COLLECTION)) {
1471 ls->dentry_flags |= IS_DIR;
1473 } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
1474 free(ls->dentry_name);
1475 ls->dentry_name = NULL;
1476 ls->dentry_flags = 0;
1481 * NEEDSWORK: remote_ls() ignores info/refs on the remote side. But it
1482 * should _only_ heed the information from that file, instead of trying to
1483 * determine the refs from the remote file system (badly: it does not even
1484 * know about packed-refs).
1486 static void remote_ls(const char *path, int flags,
1487 void (*userFunc)(struct remote_ls_ctx *ls),
1490 char *url = xmalloc(strlen(repo->url) + strlen(path) + 1);
1491 struct active_request_slot *slot;
1492 struct slot_results results;
1493 struct strbuf in_buffer = STRBUF_INIT;
1494 struct buffer out_buffer = { STRBUF_INIT, 0 };
1495 struct curl_slist *dav_headers = NULL;
1497 struct remote_ls_ctx ls;
1500 ls.path = xstrdup(path);
1501 ls.dentry_name = NULL;
1502 ls.dentry_flags = 0;
1503 ls.userData = userData;
1504 ls.userFunc = userFunc;
1506 sprintf(url, "%s%s", repo->url, path);
1508 strbuf_addf(&out_buffer.buf, PROPFIND_ALL_REQUEST);
1510 dav_headers = curl_slist_append(dav_headers, "Depth: 1");
1511 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1513 slot = get_active_slot();
1514 slot->results = &results;
1515 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1516 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
1517 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1518 #ifndef NO_CURL_IOCTL
1519 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer);
1520 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, &out_buffer);
1522 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1523 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1524 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1525 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1526 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1527 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1529 if (start_active_slot(slot)) {
1530 run_active_slot(slot);
1531 if (results.curl_result == CURLE_OK) {
1532 XML_Parser parser = XML_ParserCreate(NULL);
1533 enum XML_Status result;
1534 ctx.name = xcalloc(10, 1);
1537 ctx.userFunc = handle_remote_ls_ctx;
1539 XML_SetUserData(parser, &ctx);
1540 XML_SetElementHandler(parser, xml_start_tag,
1542 XML_SetCharacterDataHandler(parser, xml_cdata);
1543 result = XML_Parse(parser, in_buffer.buf,
1547 if (result != XML_STATUS_OK) {
1548 fprintf(stderr, "XML error: %s\n",
1550 XML_GetErrorCode(parser)));
1552 XML_ParserFree(parser);
1555 fprintf(stderr, "Unable to start PROPFIND request\n");
1560 strbuf_release(&out_buffer.buf);
1561 strbuf_release(&in_buffer);
1562 curl_slist_free_all(dav_headers);
1565 static void get_remote_object_list(unsigned char parent)
1567 char path[] = "objects/XX/";
1568 static const char hex[] = "0123456789abcdef";
1569 unsigned int val = parent;
1571 path[8] = hex[val >> 4];
1572 path[9] = hex[val & 0xf];
1573 remote_dir_exists[val] = 0;
1574 remote_ls(path, (PROCESS_FILES | PROCESS_DIRS),
1575 process_ls_object, &val);
1578 static int locking_available(void)
1580 struct active_request_slot *slot;
1581 struct slot_results results;
1582 struct strbuf in_buffer = STRBUF_INIT;
1583 struct buffer out_buffer = { STRBUF_INIT, 0 };
1584 struct curl_slist *dav_headers = NULL;
1588 strbuf_addf(&out_buffer.buf, PROPFIND_SUPPORTEDLOCK_REQUEST, repo->url);
1590 dav_headers = curl_slist_append(dav_headers, "Depth: 0");
1591 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1593 slot = get_active_slot();
1594 slot->results = &results;
1595 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1596 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
1597 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1598 #ifndef NO_CURL_IOCTL
1599 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer);
1600 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, &out_buffer);
1602 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1603 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1604 curl_easy_setopt(slot->curl, CURLOPT_URL, repo->url);
1605 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1606 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1607 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1609 if (start_active_slot(slot)) {
1610 run_active_slot(slot);
1611 if (results.curl_result == CURLE_OK) {
1612 XML_Parser parser = XML_ParserCreate(NULL);
1613 enum XML_Status result;
1614 ctx.name = xcalloc(10, 1);
1617 ctx.userFunc = handle_lockprop_ctx;
1618 ctx.userData = &lock_flags;
1619 XML_SetUserData(parser, &ctx);
1620 XML_SetElementHandler(parser, xml_start_tag,
1622 result = XML_Parse(parser, in_buffer.buf,
1626 if (result != XML_STATUS_OK) {
1627 fprintf(stderr, "XML error: %s\n",
1629 XML_GetErrorCode(parser)));
1632 XML_ParserFree(parser);
1634 error("no DAV locking support on %s",
1638 error("Cannot access URL %s, return code %d",
1639 repo->url, results.curl_result);
1643 error("Unable to start PROPFIND request on %s", repo->url);
1646 strbuf_release(&out_buffer.buf);
1647 strbuf_release(&in_buffer);
1648 curl_slist_free_all(dav_headers);
1653 static struct object_list **add_one_object(struct object *obj, struct object_list **p)
1655 struct object_list *entry = xmalloc(sizeof(struct object_list));
1659 return &entry->next;
1662 static struct object_list **process_blob(struct blob *blob,
1663 struct object_list **p,
1664 struct name_path *path,
1667 struct object *obj = &blob->object;
1669 obj->flags |= LOCAL;
1671 if (obj->flags & (UNINTERESTING | SEEN))
1675 return add_one_object(obj, p);
1678 static struct object_list **process_tree(struct tree *tree,
1679 struct object_list **p,
1680 struct name_path *path,
1683 struct object *obj = &tree->object;
1684 struct tree_desc desc;
1685 struct name_entry entry;
1686 struct name_path me;
1688 obj->flags |= LOCAL;
1690 if (obj->flags & (UNINTERESTING | SEEN))
1692 if (parse_tree(tree) < 0)
1693 die("bad tree object %s", sha1_to_hex(obj->sha1));
1696 name = xstrdup(name);
1697 p = add_one_object(obj, p);
1700 me.elem_len = strlen(name);
1702 init_tree_desc(&desc, tree->buffer, tree->size);
1704 while (tree_entry(&desc, &entry))
1705 switch (object_type(entry.mode)) {
1707 p = process_tree(lookup_tree(entry.sha1), p, &me, name);
1710 p = process_blob(lookup_blob(entry.sha1), p, &me, name);
1713 /* Subproject commit - not in this repository */
1718 tree->buffer = NULL;
1722 static int get_delta(struct rev_info *revs, struct remote_lock *lock)
1725 struct commit *commit;
1726 struct object_list **p = &objects;
1729 while ((commit = get_revision(revs)) != NULL) {
1730 p = process_tree(commit->tree, p, NULL, "");
1731 commit->object.flags |= LOCAL;
1732 if (!(commit->object.flags & UNINTERESTING))
1733 count += add_send_request(&commit->object, lock);
1736 for (i = 0; i < revs->pending.nr; i++) {
1737 struct object_array_entry *entry = revs->pending.objects + i;
1738 struct object *obj = entry->item;
1739 const char *name = entry->name;
1741 if (obj->flags & (UNINTERESTING | SEEN))
1743 if (obj->type == OBJ_TAG) {
1745 p = add_one_object(obj, p);
1748 if (obj->type == OBJ_TREE) {
1749 p = process_tree((struct tree *)obj, p, NULL, name);
1752 if (obj->type == OBJ_BLOB) {
1753 p = process_blob((struct blob *)obj, p, NULL, name);
1756 die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
1760 if (!(objects->item->flags & UNINTERESTING))
1761 count += add_send_request(objects->item, lock);
1762 objects = objects->next;
1768 static int update_remote(unsigned char *sha1, struct remote_lock *lock)
1770 struct active_request_slot *slot;
1771 struct slot_results results;
1772 struct buffer out_buffer = { STRBUF_INIT, 0 };
1773 struct curl_slist *dav_headers;
1775 dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF);
1777 strbuf_addf(&out_buffer.buf, "%s\n", sha1_to_hex(sha1));
1779 slot = get_active_slot();
1780 slot->results = &results;
1781 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
1782 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
1783 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1784 #ifndef NO_CURL_IOCTL
1785 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer);
1786 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, &out_buffer);
1788 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1789 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
1790 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1791 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1792 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
1793 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1795 if (start_active_slot(slot)) {
1796 run_active_slot(slot);
1797 strbuf_release(&out_buffer.buf);
1798 if (results.curl_result != CURLE_OK) {
1800 "PUT error: curl result=%d, HTTP code=%ld\n",
1801 results.curl_result, results.http_code);
1802 /* We should attempt recovery? */
1806 strbuf_release(&out_buffer.buf);
1807 fprintf(stderr, "Unable to start PUT request\n");
1814 static struct ref *remote_refs, **remote_tail;
1816 static void one_remote_ref(char *refname)
1821 ref = alloc_ref(refname);
1823 if (http_fetch_ref(repo->url, ref) != 0) {
1825 "Unable to fetch ref %s from %s\n",
1826 refname, repo->url);
1832 * Fetch a copy of the object if it doesn't exist locally - it
1833 * may be required for updating server info later.
1835 if (repo->can_update_info_refs && !has_sha1_file(ref->old_sha1)) {
1836 obj = lookup_unknown_object(ref->old_sha1);
1838 fprintf(stderr, " fetch %s for %s\n",
1839 sha1_to_hex(ref->old_sha1), refname);
1840 add_fetch_request(obj);
1845 remote_tail = &ref->next;
1848 static void get_dav_remote_heads(void)
1850 remote_tail = &remote_refs;
1851 remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL);
1854 static int is_zero_sha1(const unsigned char *sha1)
1858 for (i = 0; i < 20; i++) {
1865 static void add_remote_info_ref(struct remote_ls_ctx *ls)
1867 struct strbuf *buf = (struct strbuf *)ls->userData;
1873 ref = alloc_ref(ls->dentry_name);
1875 if (http_fetch_ref(repo->url, ref) != 0) {
1877 "Unable to fetch ref %s from %s\n",
1878 ls->dentry_name, repo->url);
1884 o = parse_object(ref->old_sha1);
1887 "Unable to parse object %s for remote ref %s\n",
1888 sha1_to_hex(ref->old_sha1), ls->dentry_name);
1894 len = strlen(ls->dentry_name) + 42;
1895 ref_info = xcalloc(len + 1, 1);
1896 sprintf(ref_info, "%s %s\n",
1897 sha1_to_hex(ref->old_sha1), ls->dentry_name);
1898 fwrite_buffer(ref_info, 1, len, buf);
1901 if (o->type == OBJ_TAG) {
1902 o = deref_tag(o, ls->dentry_name, 0);
1904 len = strlen(ls->dentry_name) + 45;
1905 ref_info = xcalloc(len + 1, 1);
1906 sprintf(ref_info, "%s %s^{}\n",
1907 sha1_to_hex(o->sha1), ls->dentry_name);
1908 fwrite_buffer(ref_info, 1, len, buf);
1915 static void update_remote_info_refs(struct remote_lock *lock)
1917 struct buffer buffer = { STRBUF_INIT, 0 };
1918 struct active_request_slot *slot;
1919 struct slot_results results;
1920 struct curl_slist *dav_headers;
1922 remote_ls("refs/", (PROCESS_FILES | RECURSIVE),
1923 add_remote_info_ref, &buffer.buf);
1925 dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF);
1927 slot = get_active_slot();
1928 slot->results = &results;
1929 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &buffer);
1930 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, buffer.buf.len);
1931 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1932 #ifndef NO_CURL_IOCTL
1933 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer);
1934 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, &buffer);
1936 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1937 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
1938 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1939 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1940 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
1941 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1943 if (start_active_slot(slot)) {
1944 run_active_slot(slot);
1945 if (results.curl_result != CURLE_OK) {
1947 "PUT error: curl result=%d, HTTP code=%ld\n",
1948 results.curl_result, results.http_code);
1952 strbuf_release(&buffer.buf);
1955 static int remote_exists(const char *path)
1957 char *url = xmalloc(strlen(repo->url) + strlen(path) + 1);
1958 struct active_request_slot *slot;
1959 struct slot_results results;
1962 sprintf(url, "%s%s", repo->url, path);
1964 slot = get_active_slot();
1965 slot->results = &results;
1966 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1967 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
1969 if (start_active_slot(slot)) {
1970 run_active_slot(slot);
1971 if (results.http_code == 404)
1973 else if (results.curl_result == CURLE_OK)
1976 fprintf(stderr, "HEAD HTTP error %ld\n", results.http_code);
1978 fprintf(stderr, "Unable to start HEAD request\n");
1985 static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
1988 struct strbuf buffer = STRBUF_INIT;
1989 struct active_request_slot *slot;
1990 struct slot_results results;
1992 url = xmalloc(strlen(repo->url) + strlen(path) + 1);
1993 sprintf(url, "%s%s", repo->url, path);
1995 slot = get_active_slot();
1996 slot->results = &results;
1997 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
1998 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1999 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
2000 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2001 if (start_active_slot(slot)) {
2002 run_active_slot(slot);
2003 if (results.curl_result != CURLE_OK) {
2004 die("Couldn't get %s for remote symref\n%s",
2005 url, curl_errorstr);
2008 die("Unable to start remote symref request");
2016 if (buffer.len == 0)
2019 /* If it's a symref, set the refname; otherwise try for a sha1 */
2020 if (!prefixcmp((char *)buffer.buf, "ref: ")) {
2021 *symref = xmemdupz((char *)buffer.buf + 5, buffer.len - 6);
2023 get_sha1_hex(buffer.buf, sha1);
2026 strbuf_release(&buffer);
2029 static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
2031 struct commit *head = lookup_commit(head_sha1);
2032 struct commit *branch = lookup_commit(branch_sha1);
2033 struct commit_list *merge_bases = get_merge_bases(head, branch, 1);
2035 return (merge_bases && !merge_bases->next && merge_bases->item == branch);
2038 static int delete_remote_branch(char *pattern, int force)
2040 struct ref *refs = remote_refs;
2041 struct ref *remote_ref = NULL;
2042 unsigned char head_sha1[20];
2043 char *symref = NULL;
2045 int patlen = strlen(pattern);
2047 struct active_request_slot *slot;
2048 struct slot_results results;
2051 /* Find the remote branch(es) matching the specified branch name */
2052 for (match = 0; refs; refs = refs->next) {
2053 char *name = refs->name;
2054 int namelen = strlen(name);
2055 if (namelen < patlen ||
2056 memcmp(name + namelen - patlen, pattern, patlen))
2058 if (namelen != patlen && name[namelen - patlen - 1] != '/')
2064 return error("No remote branch matches %s", pattern);
2066 return error("More than one remote branch matches %s",
2070 * Remote HEAD must be a symref (not exactly foolproof; a remote
2071 * symlink to a symref will look like a symref)
2073 fetch_symref("HEAD", &symref, head_sha1);
2075 return error("Remote HEAD is not a symref");
2077 /* Remote branch must not be the remote HEAD */
2078 for (i=0; symref && i<MAXDEPTH; i++) {
2079 if (!strcmp(remote_ref->name, symref))
2080 return error("Remote branch %s is the current HEAD",
2082 fetch_symref(symref, &symref, head_sha1);
2085 /* Run extra sanity checks if delete is not forced */
2087 /* Remote HEAD must resolve to a known object */
2089 return error("Remote HEAD symrefs too deep");
2090 if (is_zero_sha1(head_sha1))
2091 return error("Unable to resolve remote HEAD");
2092 if (!has_sha1_file(head_sha1))
2093 return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", sha1_to_hex(head_sha1));
2095 /* Remote branch must resolve to a known object */
2096 if (is_zero_sha1(remote_ref->old_sha1))
2097 return error("Unable to resolve remote branch %s",
2099 if (!has_sha1_file(remote_ref->old_sha1))
2100 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));
2102 /* Remote branch must be an ancestor of remote HEAD */
2103 if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
2104 return error("The branch '%s' is not an ancestor "
2105 "of your current HEAD.\n"
2106 "If you are sure you want to delete it,"
2107 " run:\n\t'git http-push -D %s %s'",
2108 remote_ref->name, repo->url, pattern);
2112 /* Send delete request */
2113 fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name);
2116 url = xmalloc(strlen(repo->url) + strlen(remote_ref->name) + 1);
2117 sprintf(url, "%s%s", repo->url, remote_ref->name);
2118 slot = get_active_slot();
2119 slot->results = &results;
2120 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
2121 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2122 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2123 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_DELETE);
2124 if (start_active_slot(slot)) {
2125 run_active_slot(slot);
2127 if (results.curl_result != CURLE_OK)
2128 return error("DELETE request failed (%d/%ld)\n",
2129 results.curl_result, results.http_code);
2132 return error("Unable to start DELETE request");
2138 int main(int argc, char **argv)
2140 struct transfer_request *request;
2141 struct transfer_request *next_request;
2143 char **refspec = NULL;
2144 struct remote_lock *ref_lock = NULL;
2145 struct remote_lock *info_ref_lock = NULL;
2146 struct rev_info revs;
2147 int delete_branch = 0;
2148 int force_delete = 0;
2149 int objects_to_send;
2153 struct ref *ref, *local_refs;
2154 struct remote *remote;
2155 char *rewritten_url = NULL;
2157 git_extract_argv0_path(argv[0]);
2159 setup_git_directory();
2161 repo = xcalloc(sizeof(*repo), 1);
2164 for (i = 1; i < argc; i++, argv++) {
2168 if (!strcmp(arg, "--all")) {
2169 push_all = MATCH_REFS_ALL;
2172 if (!strcmp(arg, "--force")) {
2176 if (!strcmp(arg, "--dry-run")) {
2180 if (!strcmp(arg, "--verbose")) {
2184 if (!strcmp(arg, "-d")) {
2188 if (!strcmp(arg, "-D")) {
2195 char *path = strstr(arg, "//");
2197 repo->path_len = strlen(arg);
2199 repo->path = strchr(path+2, '/');
2201 repo->path_len = strlen(repo->path);
2206 nr_refspec = argc - i;
2210 #ifndef USE_CURL_MULTI
2211 die("git-push is not available for http/https repository when not compiled with USE_CURL_MULTI");
2215 usage(http_push_usage);
2217 if (delete_branch && nr_refspec != 1)
2218 die("You must specify only one branch name when deleting a remote branch");
2220 memset(remote_dir_exists, -1, 256);
2223 * Create a minimum remote by hand to give to http_init(),
2224 * primarily to allow it to look at the URL.
2226 remote = xcalloc(sizeof(*remote), 1);
2227 ALLOC_GROW(remote->url, remote->url_nr + 1, remote->url_alloc);
2228 remote->url[remote->url_nr++] = repo->url;
2231 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
2233 if (repo->url && repo->url[strlen(repo->url)-1] != '/') {
2234 rewritten_url = xmalloc(strlen(repo->url)+2);
2235 strcpy(rewritten_url, repo->url);
2236 strcat(rewritten_url, "/");
2237 repo->path = rewritten_url + (repo->path - repo->url);
2239 repo->url = rewritten_url;
2242 /* Verify DAV compliance/lock support */
2243 if (!locking_available()) {
2248 sigchain_push_common(remove_locks_on_signal);
2250 /* Check whether the remote has server info files */
2251 repo->can_update_info_refs = 0;
2252 repo->has_info_refs = remote_exists("info/refs");
2253 repo->has_info_packs = remote_exists("objects/info/packs");
2254 if (repo->has_info_refs) {
2255 info_ref_lock = lock_remote("info/refs", LOCK_TIME);
2257 repo->can_update_info_refs = 1;
2259 error("cannot lock existing info/refs");
2264 if (repo->has_info_packs)
2267 /* Get a list of all local and remote heads to validate refspecs */
2268 local_refs = get_local_heads();
2269 fprintf(stderr, "Fetching remote heads...\n");
2270 get_dav_remote_heads();
2272 /* Remove a remote branch if -d or -D was specified */
2273 if (delete_branch) {
2274 if (delete_remote_branch(refspec[0], force_delete) == -1)
2275 fprintf(stderr, "Unable to delete remote branch %s\n",
2282 remote_tail = &remote_refs;
2283 if (match_refs(local_refs, remote_refs, &remote_tail,
2284 nr_refspec, (const char **) refspec, push_all)) {
2289 fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
2295 for (ref = remote_refs; ref; ref = ref->next) {
2296 char old_hex[60], *new_hex;
2297 const char *commit_argv[4];
2299 char *new_sha1_hex, *old_sha1_hex;
2304 if (is_zero_sha1(ref->peer_ref->new_sha1)) {
2305 if (delete_remote_branch(ref->name, 1) == -1) {
2306 error("Could not remove %s", ref->name);
2313 if (!hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
2314 if (push_verbosely || 1)
2315 fprintf(stderr, "'%s': up-to-date\n", ref->name);
2320 !is_zero_sha1(ref->old_sha1) &&
2322 if (!has_sha1_file(ref->old_sha1) ||
2323 !ref_newer(ref->peer_ref->new_sha1,
2326 * We do not have the remote ref, or
2327 * we know that the remote ref is not
2328 * an ancestor of what we are trying to
2329 * push. Either way this can be losing
2330 * commits at the remote end and likely
2331 * we were not up to date to begin with.
2333 error("remote '%s' is not an ancestor of\n"
2335 "Maybe you are not up-to-date and "
2336 "need to pull first?",
2338 ref->peer_ref->name);
2343 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
2345 strcpy(old_hex, sha1_to_hex(ref->old_sha1));
2346 new_hex = sha1_to_hex(ref->new_sha1);
2348 fprintf(stderr, "updating '%s'", ref->name);
2349 if (strcmp(ref->name, ref->peer_ref->name))
2350 fprintf(stderr, " using '%s'", ref->peer_ref->name);
2351 fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
2355 /* Lock remote branch ref */
2356 ref_lock = lock_remote(ref->name, LOCK_TIME);
2357 if (ref_lock == NULL) {
2358 fprintf(stderr, "Unable to lock remote branch %s\n",
2364 /* Set up revision info for this refspec */
2366 new_sha1_hex = xstrdup(sha1_to_hex(ref->new_sha1));
2367 old_sha1_hex = NULL;
2368 commit_argv[1] = "--objects";
2369 commit_argv[2] = new_sha1_hex;
2370 if (!push_all && !is_zero_sha1(ref->old_sha1)) {
2371 old_sha1_hex = xmalloc(42);
2372 sprintf(old_sha1_hex, "^%s",
2373 sha1_to_hex(ref->old_sha1));
2374 commit_argv[3] = old_sha1_hex;
2377 init_revisions(&revs, setup_git_directory());
2378 setup_revisions(commit_argc, commit_argv, &revs, NULL);
2379 revs.edge_hint = 0; /* just in case */
2383 commit_argv[1] = NULL;
2386 /* Generate a list of objects that need to be pushed */
2388 if (prepare_revision_walk(&revs))
2389 die("revision walk setup failed");
2390 mark_edges_uninteresting(revs.commits, &revs, NULL);
2391 objects_to_send = get_delta(&revs, ref_lock);
2392 finish_all_active_slots();
2394 /* Push missing objects to remote, this would be a
2395 convenient time to pack them first if appropriate. */
2397 if (objects_to_send)
2398 fprintf(stderr, " sending %d objects\n",
2400 #ifdef USE_CURL_MULTI
2401 fill_active_slots();
2402 add_fill_function(NULL, fill_active_slot);
2405 finish_all_active_slots();
2406 #ifdef USE_CURL_MULTI
2407 fill_active_slots();
2409 } while (request_queue_head && !aborted);
2411 /* Update the remote branch if all went well */
2412 if (aborted || !update_remote(ref->new_sha1, ref_lock))
2416 fprintf(stderr, " done\n");
2417 unlock_remote(ref_lock);
2421 /* Update remote server info if appropriate */
2422 if (repo->has_info_refs && new_refs) {
2423 if (info_ref_lock && repo->can_update_info_refs) {
2424 fprintf(stderr, "Updating remote server info\n");
2426 update_remote_info_refs(info_ref_lock);
2428 fprintf(stderr, "Unable to update server info\n");
2433 free(rewritten_url);
2435 unlock_remote(info_ref_lock);
2438 curl_slist_free_all(no_pragma_header);
2442 request = request_queue_head;
2443 while (request != NULL) {
2444 next_request = request->next;
2445 release_request(request);
2446 request = next_request;