fix openssl headers conflicting with custom SHA1 implementations
[git/git.git] / http-push.c
CommitLineData
58e60dd2
NH
1#include "cache.h"
2#include "commit.h"
3#include "pack.h"
58e60dd2
NH
4#include "tag.h"
5#include "blob.h"
29508e1e 6#include "http.h"
aa1dbc98 7#include "refs.h"
c4e05b1a 8#include "diff.h"
aa1dbc98 9#include "revision.h"
3dfaf7bc 10#include "exec_cmd.h"
6b62816c 11#include "remote.h"
d633c882 12#include "list-objects.h"
29508e1e 13
bee8e79d 14#include <expat.h>
58e60dd2
NH
15
16static const char http_push_usage[] =
1b1dd23f 17"git http-push [--all] [--dry-run] [--force] [--verbose] <remote> [<head>...]\n";
58e60dd2 18
92e2eb9c
JS
19#ifndef XML_STATUS_OK
20enum XML_Status {
21 XML_STATUS_OK = 1,
22 XML_STATUS_ERROR = 0
23};
24#define XML_STATUS_OK 1
25#define XML_STATUS_ERROR 0
26#endif
27
197e8951 28#define PREV_BUF_SIZE 4096
58e60dd2
NH
29#define RANGE_HEADER_SIZE 30
30
acf59575 31/* DAV methods */
58e60dd2
NH
32#define DAV_LOCK "LOCK"
33#define DAV_MKCOL "MKCOL"
34#define DAV_MOVE "MOVE"
35#define DAV_PROPFIND "PROPFIND"
36#define DAV_PUT "PUT"
37#define DAV_UNLOCK "UNLOCK"
3dfaf7bc 38#define DAV_DELETE "DELETE"
acf59575
NH
39
40/* DAV lock flags */
41#define DAV_PROP_LOCKWR (1u << 0)
42#define DAV_PROP_LOCKEX (1u << 1)
43#define DAV_LOCK_OK (1u << 2)
44
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"
aa1dbc98
NH
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"
acf59575
NH
55
56/* DAV request body templates */
aa1dbc98
NH
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>"
58e60dd2
NH
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>"
60
75187c9d
NH
61#define LOCK_TIME 600
62#define LOCK_REFRESH 30
63
1b65a5aa 64/* bits #0-15 in revision.h */
aa1dbc98 65
1b65a5aa
JH
66#define LOCAL (1u<<16)
67#define REMOTE (1u<<17)
68#define FETCHING (1u<<18)
69#define PUSHING (1u<<19)
aa1dbc98 70
3dfaf7bc
NH
71/* We allow "recursive" symbolic refs. Only within reason, though */
72#define MAXDEPTH 5
73
96f1e58f
DR
74static int pushing;
75static int aborted;
a3c57c9a 76static signed char remote_dir_exists[256];
58e60dd2 77
58e60dd2 78static struct curl_slist *no_pragma_header;
58e60dd2 79
96f1e58f 80static int push_verbosely;
28b9d6e5 81static int push_all = MATCH_REFS_NONE;
96f1e58f 82static int force_all;
fe5d1d3e 83static int dry_run;
58e60dd2 84
96f1e58f 85static struct object_list *objects;
aa1dbc98 86
58e60dd2
NH
87struct repo
88{
89 char *url;
aa1dbc98 90 int path_len;
197e8951
NH
91 int has_info_refs;
92 int can_update_info_refs;
93 int has_info_packs;
58e60dd2 94 struct packed_git *packs;
512d632c 95 struct remote_lock *locks;
58e60dd2
NH
96};
97
96f1e58f 98static struct repo *remote;
58e60dd2
NH
99
100enum transfer_state {
197e8951
NH
101 NEED_FETCH,
102 RUN_FETCH_LOOSE,
103 RUN_FETCH_PACKED,
58e60dd2
NH
104 NEED_PUSH,
105 RUN_MKCOL,
106 RUN_PUT,
107 RUN_MOVE,
108 ABORTED,
109 COMPLETE,
110};
111
112struct transfer_request
113{
aa1dbc98 114 struct object *obj;
58e60dd2
NH
115 char *url;
116 char *dest;
aa1dbc98 117 struct remote_lock *lock;
58e60dd2
NH
118 struct curl_slist *headers;
119 struct buffer buffer;
120 char filename[PATH_MAX];
121 char tmpfile[PATH_MAX];
197e8951
NH
122 int local_fileno;
123 FILE *local_stream;
58e60dd2
NH
124 enum transfer_state state;
125 CURLcode curl_result;
126 char errorstr[CURL_ERROR_SIZE];
127 long http_code;
128 unsigned char real_sha1[20];
9126f009 129 git_SHA_CTX c;
58e60dd2
NH
130 z_stream stream;
131 int zret;
132 int rename;
197e8951 133 void *userData;
58e60dd2
NH
134 struct active_request_slot *slot;
135 struct transfer_request *next;
136};
137
96f1e58f 138static struct transfer_request *request_queue_head;
58e60dd2 139
acf59575
NH
140struct xml_ctx
141{
142 char *name;
143 int len;
144 char *cdata;
145 void (*userFunc)(struct xml_ctx *ctx, int tag_closed);
146 void *userData;
147};
148
aa1dbc98 149struct remote_lock
26349b2e 150{
75187c9d 151 char *url;
26349b2e 152 char *owner;
75187c9d 153 char *token;
26349b2e
NH
154 time_t start_time;
155 long timeout;
75187c9d 156 int refreshing;
aa1dbc98
NH
157 struct remote_lock *next;
158};
159
3030baa7
NH
160/* Flags that control remote_ls processing */
161#define PROCESS_FILES (1u << 0)
162#define PROCESS_DIRS (1u << 1)
163#define RECURSIVE (1u << 2)
164
165/* Flags that remote_ls passes to callback functions */
166#define IS_DIR (1u << 0)
167
168struct remote_ls_ctx
aa1dbc98 169{
3030baa7
NH
170 char *path;
171 void (*userFunc)(struct remote_ls_ctx *ls);
172 void *userData;
173 int flags;
174 char *dentry_name;
175 int dentry_flags;
176 struct remote_ls_ctx *parent;
26349b2e
NH
177};
178
29508e1e 179static void finish_request(struct transfer_request *request);
197e8951 180static void release_request(struct transfer_request *request);
58e60dd2 181
29508e1e 182static void process_response(void *callback_data)
58e60dd2 183{
29508e1e
NH
184 struct transfer_request *request =
185 (struct transfer_request *)callback_data;
58e60dd2 186
29508e1e 187 finish_request(request);
58e60dd2
NH
188}
189
dd8239f9 190#ifdef USE_CURL_MULTI
197e8951
NH
191static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
192 void *data)
193{
194 unsigned char expn[4096];
195 size_t size = eltsize * nmemb;
196 int posn = 0;
197 struct transfer_request *request = (struct transfer_request *)data;
198 do {
93822c22 199 ssize_t retval = xwrite(request->local_fileno,
1d7f171c 200 (char *) ptr + posn, size - posn);
197e8951
NH
201 if (retval < 0)
202 return posn;
203 posn += retval;
204 } while (posn < size);
205
206 request->stream.avail_in = size;
207 request->stream.next_in = ptr;
208 do {
209 request->stream.next_out = expn;
210 request->stream.avail_out = sizeof(expn);
211 request->zret = inflate(&request->stream, Z_SYNC_FLUSH);
9126f009 212 git_SHA1_Update(&request->c, expn,
197e8951
NH
213 sizeof(expn) - request->stream.avail_out);
214 } while (request->stream.avail_in && request->zret == Z_OK);
215 data_received++;
216 return size;
217}
218
219static void start_fetch_loose(struct transfer_request *request)
220{
221 char *hex = sha1_to_hex(request->obj->sha1);
222 char *filename;
223 char prevfile[PATH_MAX];
224 char *url;
225 char *posn;
226 int prevlocal;
227 unsigned char prev_buf[PREV_BUF_SIZE];
228 ssize_t prev_read = 0;
229 long prev_posn = 0;
230 char range[RANGE_HEADER_SIZE];
231 struct curl_slist *range_header = NULL;
232 struct active_request_slot *slot;
233
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);
238
239 snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename);
240 unlink(prevfile);
241 rename(request->tmpfile, prevfile);
242 unlink(request->tmpfile);
243
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.
250 */
251 if (request->local_fileno < 0 && errno == ENOENT) {
252 char *dir = strrchr(request->tmpfile, '/');
253 if (dir) {
254 *dir = 0;
255 mkdir(request->tmpfile, 0777);
256 *dir = '/';
257 }
258 request->local_fileno = open(request->tmpfile,
259 O_WRONLY | O_CREAT | O_EXCL, 0666);
260 }
261
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));
266 return;
267 }
268
269 memset(&request->stream, 0, sizeof(request->stream));
270
271 inflateInit(&request->stream);
272
9126f009 273 git_SHA1_Init(&request->c);
197e8951
NH
274
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/");
280 posn += 8;
281 memcpy(posn, hex, 2);
282 posn += 2;
283 *(posn++) = '/';
284 strcpy(posn, hex + 2);
285 strcpy(request->url, url);
286
287 /* If a previous temp file is present, process what was already
288 fetched. */
289 prevlocal = open(prevfile, O_RDONLY);
290 if (prevlocal != -1) {
291 do {
93d26e4c 292 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
197e8951
NH
293 if (prev_read>0) {
294 if (fwrite_sha1_file(prev_buf,
295 1,
296 prev_read,
297 request) == prev_read) {
298 prev_posn += prev_read;
299 } else {
300 prev_read = -1;
301 }
302 }
303 } while (prev_read > 0);
304 close(prevlocal);
305 }
306 unlink(prevfile);
307
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);
9126f009 313 git_SHA1_Init(&request->c);
197e8951
NH
314 if (prev_posn>0) {
315 prev_posn = 0;
b5da2467 316 lseek(request->local_fileno, 0, SEEK_SET);
197e8951
NH
317 ftruncate(request->local_fileno, 0);
318 }
319 }
320
321 slot = get_active_slot();
322 slot->callback_func = process_response;
323 slot->callback_data = request;
324 request->slot = slot;
325
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);
331
332 /* If we have successfully processed data from a previous fetch
333 attempt, only fetch the data we don't already have. */
334 if (prev_posn>0) {
335 if (push_verbosely)
336 fprintf(stderr,
337 "Resuming fetch of object %s at byte %ld\n",
338 hex, prev_posn);
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);
343 }
344
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);
351 }
352}
353
dd8239f9
JH
354static void start_mkcol(struct transfer_request *request)
355{
356 char *hex = sha1_to_hex(request->obj->sha1);
357 struct active_request_slot *slot;
358 char *posn;
359
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/");
364 posn += 8;
365 memcpy(posn, hex, 2);
366 posn += 2;
367 strcpy(posn, "/");
368
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);
377
378 if (start_active_slot(slot)) {
379 request->slot = slot;
380 request->state = RUN_MKCOL;
381 } else {
382 request->state = ABORTED;
383 free(request->url);
384 request->url = NULL;
385 }
386}
387#endif
388
197e8951
NH
389static void start_fetch_packed(struct transfer_request *request)
390{
391 char *url;
392 struct packed_git *target;
393 FILE *packfile;
394 char *filename;
395 long prev_posn = 0;
396 char range[RANGE_HEADER_SIZE];
397 struct curl_slist *range_header = NULL;
398
399 struct transfer_request *check_request = request_queue_head;
400 struct active_request_slot *slot;
401
402 target = find_sha1_pack(request->obj->sha1, remote->packs);
403 if (!target) {
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);
407 return;
408 }
409
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));
412
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);
417
418 url = xmalloc(strlen(remote->url) + 64);
419 sprintf(url, "%sobjects/pack/pack-%s.pack",
420 remote->url, sha1_to_hex(target->sha1));
421
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)) {
426 free(url);
427 release_request(request);
428 return;
429 }
430 check_request = check_request->next;
431 }
432
433 packfile = fopen(request->tmpfile, "a");
434 if (!packfile) {
435 fprintf(stderr, "Unable to open local file %s for pack",
84ef0338 436 request->tmpfile);
197e8951
NH
437 remote->can_update_info_refs = 0;
438 free(url);
439 return;
440 }
441
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;
448
449 request->url = url;
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;
455
456 /* If there is data present from a previous transfer attempt,
457 resume where it left off */
458 prev_posn = ftell(packfile);
459 if (prev_posn>0) {
460 if (push_verbosely)
461 fprintf(stderr,
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);
467 }
468
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);
475 }
476}
477
58e60dd2
NH
478static void start_put(struct transfer_request *request)
479{
aa1dbc98 480 char *hex = sha1_to_hex(request->obj->sha1);
58e60dd2
NH
481 struct active_request_slot *slot;
482 char *posn;
21666f1a 483 enum object_type type;
58e60dd2
NH
484 char hdr[50];
485 void *unpacked;
486 unsigned long len;
487 int hdrlen;
488 ssize_t size;
489 z_stream stream;
490
21666f1a
NP
491 unpacked = read_sha1_file(request->obj->sha1, &type, &len);
492 hdrlen = sprintf(hdr, "%s %lu", typename(type), len) + 1;
58e60dd2
NH
493
494 /* Set it up */
495 memset(&stream, 0, sizeof(stream));
12f6c308 496 deflateInit(&stream, zlib_compression_level);
58e60dd2 497 size = deflateBound(&stream, len + hdrlen);
028c2976
MH
498 strbuf_init(&request->buffer.buf, size);
499 request->buffer.posn = 0;
58e60dd2
NH
500
501 /* Compress it */
028c2976 502 stream.next_out = (unsigned char *)request->buffer.buf.buf;
58e60dd2
NH
503 stream.avail_out = size;
504
505 /* First header.. */
506 stream.next_in = (void *)hdr;
507 stream.avail_in = hdrlen;
508 while (deflate(&stream, 0) == Z_OK)
509 /* nothing */;
510
511 /* Then the data itself.. */
512 stream.next_in = unpacked;
513 stream.avail_in = len;
514 while (deflate(&stream, Z_FINISH) == Z_OK)
515 /* nothing */;
516 deflateEnd(&stream);
517 free(unpacked);
518
028c2976 519 request->buffer.buf.len = stream.total_out;
58e60dd2 520
a6080a0a 521 request->url = xmalloc(strlen(remote->url) +
26349b2e 522 strlen(request->lock->token) + 51);
58e60dd2
NH
523 strcpy(request->url, remote->url);
524 posn = request->url + strlen(remote->url);
525 strcpy(posn, "objects/");
526 posn += 8;
527 memcpy(posn, hex, 2);
528 posn += 2;
529 *(posn++) = '/';
530 strcpy(posn, hex + 2);
531 request->dest = xmalloc(strlen(request->url) + 14);
532 sprintf(request->dest, "Destination: %s", request->url);
533 posn += 38;
1e8d3045 534 *(posn++) = '_';
26349b2e 535 strcpy(posn, request->lock->token);
58e60dd2
NH
536
537 slot = get_active_slot();
29508e1e
NH
538 slot->callback_func = process_response;
539 slot->callback_data = request;
58e60dd2 540 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer);
028c2976 541 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.buf.len);
58e60dd2
NH
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);
549
550 if (start_active_slot(slot)) {
551 request->slot = slot;
552 request->state = RUN_PUT;
553 } else {
554 request->state = ABORTED;
555 free(request->url);
7b899967 556 request->url = NULL;
58e60dd2
NH
557 }
558}
559
560static void start_move(struct transfer_request *request)
561{
562 struct active_request_slot *slot;
563 struct curl_slist *dav_headers = NULL;
564
565 slot = get_active_slot();
29508e1e
NH
566 slot->callback_func = process_response;
567 slot->callback_data = request;
58e60dd2
NH
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);
575
576 if (start_active_slot(slot)) {
577 request->slot = slot;
578 request->state = RUN_MOVE;
579 } else {
580 request->state = ABORTED;
581 free(request->url);
7b899967 582 request->url = NULL;
58e60dd2
NH
583 }
584}
585
512d632c 586static int refresh_lock(struct remote_lock *lock)
75187c9d
NH
587{
588 struct active_request_slot *slot;
baa7b67d 589 struct slot_results results;
75187c9d
NH
590 char *if_header;
591 char timeout_header[25];
592 struct curl_slist *dav_headers = NULL;
512d632c 593 int rc = 0;
75187c9d 594
512d632c 595 lock->refreshing = 1;
75187c9d 596
512d632c
NH
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);
75187c9d 602
512d632c
NH
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);
75187c9d 610
512d632c
NH
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",
615 results.http_code);
616 } else {
617 lock->start_time = time(NULL);
618 rc = 1;
619 }
620 }
aa1dbc98 621
512d632c
NH
622 lock->refreshing = 0;
623 curl_slist_free_all(dav_headers);
624 free(if_header);
aa1dbc98 625
512d632c
NH
626 return rc;
627}
628
ec26b4d6 629static void check_locks(void)
512d632c
NH
630{
631 struct remote_lock *lock = remote->locks;
632 time_t current_time = time(NULL);
633 int time_remaining;
634
635 while (lock) {
636 time_remaining = lock->start_time + lock->timeout -
637 current_time;
638 if (!lock->refreshing && time_remaining < LOCK_REFRESH) {
639 if (!refresh_lock(lock)) {
640 fprintf(stderr,
641 "Unable to refresh lock for %s\n",
642 lock->url);
643 aborted = 1;
644 return;
aa1dbc98 645 }
75187c9d 646 }
512d632c 647 lock = lock->next;
75187c9d 648 }
aa1dbc98 649}
75187c9d 650
aa1dbc98
NH
651static void release_request(struct transfer_request *request)
652{
653 struct transfer_request *entry = request_queue_head;
654
655 if (request == request_queue_head) {
656 request_queue_head = request->next;
657 } else {
658 while (entry->next != NULL && entry->next != request)
659 entry = entry->next;
660 if (entry->next == request)
661 entry->next = entry->next->next;
662 }
663
197e8951
NH
664 if (request->local_fileno != -1)
665 close(request->local_fileno);
666 if (request->local_stream)
667 fclose(request->local_stream);
8e0f7003 668 free(request->url);
aa1dbc98 669 free(request);
75187c9d
NH
670}
671
58e60dd2
NH
672static void finish_request(struct transfer_request *request)
673{
197e8951
NH
674 struct stat st;
675 struct packed_git *target;
676 struct packed_git **lst;
677
678 request->curl_result = request->slot->curl_result;
58e60dd2
NH
679 request->http_code = request->slot->http_code;
680 request->slot = NULL;
75187c9d 681
aa1dbc98 682 /* Keep locks active */
512d632c 683 check_locks();
75187c9d 684
58e60dd2
NH
685 if (request->headers != NULL)
686 curl_slist_free_all(request->headers);
7b899967
NH
687
688 /* URL is reused for MOVE after PUT */
689 if (request->state != RUN_PUT) {
690 free(request->url);
691 request->url = NULL;
aa1dbc98 692 }
7b899967 693
aa1dbc98 694 if (request->state == RUN_MKCOL) {
58e60dd2
NH
695 if (request->curl_result == CURLE_OK ||
696 request->http_code == 405) {
aa1dbc98 697 remote_dir_exists[request->obj->sha1[0]] = 1;
58e60dd2
NH
698 start_put(request);
699 } else {
700 fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n",
aa1dbc98 701 sha1_to_hex(request->obj->sha1),
58e60dd2
NH
702 request->curl_result, request->http_code);
703 request->state = ABORTED;
704 aborted = 1;
705 }
706 } else if (request->state == RUN_PUT) {
707 if (request->curl_result == CURLE_OK) {
708 start_move(request);
709 } else {
710 fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n",
aa1dbc98 711 sha1_to_hex(request->obj->sha1),
58e60dd2
NH
712 request->curl_result, request->http_code);
713 request->state = ABORTED;
714 aborted = 1;
715 }
716 } else if (request->state == RUN_MOVE) {
717 if (request->curl_result == CURLE_OK) {
1a703cba
NH
718 if (push_verbosely)
719 fprintf(stderr, " sent %s\n",
720 sha1_to_hex(request->obj->sha1));
aa1dbc98
NH
721 request->obj->flags |= REMOTE;
722 release_request(request);
58e60dd2
NH
723 } else {
724 fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n",
aa1dbc98 725 sha1_to_hex(request->obj->sha1),
58e60dd2
NH
726 request->curl_result, request->http_code);
727 request->state = ABORTED;
728 aborted = 1;
729 }
197e8951
NH
730 } else if (request->state == RUN_FETCH_LOOSE) {
731 fchmod(request->local_fileno, 0444);
732 close(request->local_fileno); request->local_fileno = -1;
733
734 if (request->curl_result != CURLE_OK &&
735 request->http_code != 416) {
736 if (stat(request->tmpfile, &st) == 0) {
737 if (st.st_size == 0)
738 unlink(request->tmpfile);
739 }
740 } else {
741 if (request->http_code == 416)
742 fprintf(stderr, "Warning: requested range invalid; we may already have all the data.\n");
743
744 inflateEnd(&request->stream);
9126f009 745 git_SHA1_Final(request->real_sha1, &request->c);
197e8951
NH
746 if (request->zret != Z_STREAM_END) {
747 unlink(request->tmpfile);
a89fccd2 748 } else if (hashcmp(request->obj->sha1, request->real_sha1)) {
197e8951
NH
749 unlink(request->tmpfile);
750 } else {
751 request->rename =
752 move_temp_to_file(
753 request->tmpfile,
754 request->filename);
755 if (request->rename == 0) {
756 request->obj->flags |= (LOCAL | REMOTE);
757 }
758 }
759 }
760
761 /* Try fetching packed if necessary */
762 if (request->obj->flags & LOCAL)
763 release_request(request);
764 else
765 start_fetch_packed(request);
766
767 } else if (request->state == RUN_FETCH_PACKED) {
768 if (request->curl_result != CURLE_OK) {
769 fprintf(stderr, "Unable to get pack file %s\n%s",
770 request->url, curl_errorstr);
771 remote->can_update_info_refs = 0;
772 } else {
1c23d794
SP
773 off_t pack_size = ftell(request->local_stream);
774
197e8951
NH
775 fclose(request->local_stream);
776 request->local_stream = NULL;
777 if (!move_temp_to_file(request->tmpfile,
778 request->filename)) {
779 target = (struct packed_git *)request->userData;
1c23d794 780 target->pack_size = pack_size;
197e8951
NH
781 lst = &remote->packs;
782 while (*lst != target)
783 lst = &((*lst)->next);
784 *lst = (*lst)->next;
785
77d3ecee 786 if (!verify_pack(target))
197e8951
NH
787 install_packed_git(target);
788 else
789 remote->can_update_info_refs = 0;
790 }
791 }
792 release_request(request);
58e60dd2
NH
793 }
794}
795
b3ca4e4e 796#ifdef USE_CURL_MULTI
fc57b6aa 797static int fill_active_slot(void *unused)
58e60dd2
NH
798{
799 struct transfer_request *request = request_queue_head;
58e60dd2
NH
800
801 if (aborted)
45c17412 802 return 0;
58e60dd2 803
45c17412 804 for (request = request_queue_head; request; request = request->next) {
197e8951
NH
805 if (request->state == NEED_FETCH) {
806 start_fetch_loose(request);
45c17412 807 return 1;
197e8951 808 } else if (pushing && request->state == NEED_PUSH) {
aa1dbc98 809 if (remote_dir_exists[request->obj->sha1[0]] == 1) {
0dd276b8 810 start_put(request);
aa1dbc98 811 } else {
0dd276b8 812 start_mkcol(request);
aa1dbc98 813 }
45c17412 814 return 1;
58e60dd2 815 }
aa1dbc98 816 }
45c17412 817 return 0;
58e60dd2 818}
b3ca4e4e 819#endif
58e60dd2 820
aa1dbc98
NH
821static void get_remote_object_list(unsigned char parent);
822
197e8951
NH
823static void add_fetch_request(struct object *obj)
824{
825 struct transfer_request *request;
826
827 check_locks();
828
829 /*
830 * Don't fetch the object if it's known to exist locally
831 * or is already in the request queue
832 */
833 if (remote_dir_exists[obj->sha1[0]] == -1)
834 get_remote_object_list(obj->sha1[0]);
835 if (obj->flags & (LOCAL | FETCHING))
836 return;
837
838 obj->flags |= FETCHING;
839 request = xmalloc(sizeof(*request));
840 request->obj = obj;
841 request->url = NULL;
842 request->lock = NULL;
843 request->headers = NULL;
844 request->local_fileno = -1;
845 request->local_stream = NULL;
846 request->state = NEED_FETCH;
847 request->next = request_queue_head;
848 request_queue_head = request;
849
b3ca4e4e 850#ifdef USE_CURL_MULTI
197e8951
NH
851 fill_active_slots();
852 step_active_slots();
b3ca4e4e 853#endif
197e8951
NH
854}
855
1a703cba 856static int add_send_request(struct object *obj, struct remote_lock *lock)
58e60dd2
NH
857{
858 struct transfer_request *request = request_queue_head;
58e60dd2 859 struct packed_git *target;
58e60dd2 860
512d632c
NH
861 /* Keep locks active */
862 check_locks();
863
aa1dbc98
NH
864 /*
865 * Don't push the object if it's known to exist on the remote
866 * or is already in the request queue
867 */
868 if (remote_dir_exists[obj->sha1[0]] == -1)
869 get_remote_object_list(obj->sha1[0]);
870 if (obj->flags & (REMOTE | PUSHING))
1a703cba 871 return 0;
aa1dbc98
NH
872 target = find_sha1_pack(obj->sha1, remote->packs);
873 if (target) {
874 obj->flags |= REMOTE;
1a703cba 875 return 0;
aa1dbc98 876 }
58e60dd2 877
aa1dbc98 878 obj->flags |= PUSHING;
58e60dd2 879 request = xmalloc(sizeof(*request));
aa1dbc98 880 request->obj = obj;
58e60dd2 881 request->url = NULL;
26349b2e 882 request->lock = lock;
58e60dd2 883 request->headers = NULL;
197e8951
NH
884 request->local_fileno = -1;
885 request->local_stream = NULL;
aa1dbc98 886 request->state = NEED_PUSH;
c17fb6ee
NH
887 request->next = request_queue_head;
888 request_queue_head = request;
29508e1e 889
b3ca4e4e 890#ifdef USE_CURL_MULTI
29508e1e
NH
891 fill_active_slots();
892 step_active_slots();
b3ca4e4e 893#endif
1a703cba
NH
894
895 return 1;
58e60dd2
NH
896}
897
898static int fetch_index(unsigned char *sha1)
899{
900 char *hex = sha1_to_hex(sha1);
901 char *filename;
902 char *url;
903 char tmpfile[PATH_MAX];
904 long prev_posn = 0;
905 char range[RANGE_HEADER_SIZE];
906 struct curl_slist *range_header = NULL;
907
908 FILE *indexfile;
909 struct active_request_slot *slot;
baa7b67d 910 struct slot_results results;
58e60dd2 911
c17fb6ee 912 /* Don't use the index if the pack isn't there */
1a703cba
NH
913 url = xmalloc(strlen(remote->url) + 64);
914 sprintf(url, "%sobjects/pack/pack-%s.pack", remote->url, hex);
c17fb6ee 915 slot = get_active_slot();
baa7b67d 916 slot->results = &results;
c17fb6ee
NH
917 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
918 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
919 if (start_active_slot(slot)) {
920 run_active_slot(slot);
baa7b67d 921 if (results.curl_result != CURLE_OK) {
c17fb6ee
NH
922 free(url);
923 return error("Unable to verify pack %s is available",
924 hex);
925 }
926 } else {
3b683b91 927 free(url);
c17fb6ee
NH
928 return error("Unable to start request");
929 }
930
3b683b91
MH
931 if (has_pack_index(sha1)) {
932 free(url);
58e60dd2 933 return 0;
3b683b91 934 }
58e60dd2
NH
935
936 if (push_verbosely)
937 fprintf(stderr, "Getting index for pack %s\n", hex);
1a703cba
NH
938
939 sprintf(url, "%sobjects/pack/pack-%s.idx", remote->url, hex);
940
58e60dd2
NH
941 filename = sha1_pack_index_name(sha1);
942 snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
943 indexfile = fopen(tmpfile, "a");
3b683b91
MH
944 if (!indexfile) {
945 free(url);
58e60dd2 946 return error("Unable to open local file %s for pack index",
84ef0338 947 tmpfile);
3b683b91 948 }
58e60dd2
NH
949
950 slot = get_active_slot();
baa7b67d 951 slot->results = &results;
c17fb6ee
NH
952 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
953 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
58e60dd2
NH
954 curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile);
955 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
956 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
957 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
958 slot->local = indexfile;
959
960 /* If there is data present from a previous transfer attempt,
961 resume where it left off */
962 prev_posn = ftell(indexfile);
963 if (prev_posn>0) {
964 if (push_verbosely)
965 fprintf(stderr,
966 "Resuming fetch of index for pack %s at byte %ld\n",
967 hex, prev_posn);
968 sprintf(range, "Range: bytes=%ld-", prev_posn);
969 range_header = curl_slist_append(range_header, range);
970 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
971 }
972
973 if (start_active_slot(slot)) {
974 run_active_slot(slot);
baa7b67d 975 if (results.curl_result != CURLE_OK) {
58e60dd2
NH
976 free(url);
977 fclose(indexfile);
978 return error("Unable to get pack index %s\n%s", url,
979 curl_errorstr);
980 }
981 } else {
982 free(url);
7b899967 983 fclose(indexfile);
58e60dd2
NH
984 return error("Unable to start request");
985 }
986
987 free(url);
988 fclose(indexfile);
989
990 return move_temp_to_file(tmpfile, filename);
991}
992
993static int setup_index(unsigned char *sha1)
994{
995 struct packed_git *new_pack;
58e60dd2
NH
996
997 if (fetch_index(sha1))
998 return -1;
999
1000 new_pack = parse_pack_index(sha1);
1001 new_pack->next = remote->packs;
1002 remote->packs = new_pack;
1003 return 0;
1004}
1005
f4f440a0 1006static int fetch_indices(void)
58e60dd2
NH
1007{
1008 unsigned char sha1[20];
1009 char *url;
028c2976 1010 struct strbuf buffer = STRBUF_INIT;
58e60dd2
NH
1011 char *data;
1012 int i = 0;
1013
1014 struct active_request_slot *slot;
baa7b67d 1015 struct slot_results results;
58e60dd2 1016
58e60dd2
NH
1017 if (push_verbosely)
1018 fprintf(stderr, "Getting pack list\n");
1a703cba
NH
1019
1020 url = xmalloc(strlen(remote->url) + 20);
1021 sprintf(url, "%sobjects/info/packs", remote->url);
58e60dd2
NH
1022
1023 slot = get_active_slot();
baa7b67d 1024 slot->results = &results;
58e60dd2 1025 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
29508e1e 1026 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
58e60dd2
NH
1027 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1028 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
1029 if (start_active_slot(slot)) {
1030 run_active_slot(slot);
baa7b67d 1031 if (results.curl_result != CURLE_OK) {
028c2976 1032 strbuf_release(&buffer);
58e60dd2 1033 free(url);
baa7b67d 1034 if (results.http_code == 404)
58e60dd2
NH
1035 return 0;
1036 else
1037 return error("%s", curl_errorstr);
1038 }
1039 } else {
028c2976 1040 strbuf_release(&buffer);
58e60dd2
NH
1041 free(url);
1042 return error("Unable to start request");
1043 }
1044 free(url);
1045
028c2976
MH
1046 data = buffer.buf;
1047 while (i < buffer.len) {
58e60dd2
NH
1048 switch (data[i]) {
1049 case 'P':
1050 i++;
028c2976 1051 if (i + 52 < buffer.len &&
cc44c765 1052 !prefixcmp(data + i, " pack-") &&
1968d77d 1053 !prefixcmp(data + i + 46, ".pack\n")) {
58e60dd2
NH
1054 get_sha1_hex(data + i + 6, sha1);
1055 setup_index(sha1);
1056 i += 51;
1057 break;
1058 }
1059 default:
1060 while (data[i] != '\n')
1061 i++;
1062 }
1063 i++;
1064 }
1065
028c2976 1066 strbuf_release(&buffer);
58e60dd2
NH
1067 return 0;
1068}
1069
aa1dbc98
NH
1070static void one_remote_object(const char *hex)
1071{
1072 unsigned char sha1[20];
1073 struct object *obj;
1074
1075 if (get_sha1_hex(hex, sha1) != 0)
1076 return;
1077
1078 obj = lookup_object(sha1);
1079 if (!obj)
1080 obj = parse_object(sha1);
1081
1082 /* Ignore remote objects that don't exist locally */
1083 if (!obj)
1084 return;
1085
1086 obj->flags |= REMOTE;
1087 if (!object_list_contains(objects, obj))
1f1e895f 1088 object_list_insert(obj, &objects);
aa1dbc98
NH
1089}
1090
acf59575 1091static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
26349b2e 1092{
acf59575
NH
1093 int *lock_flags = (int *)ctx->userData;
1094
1095 if (tag_closed) {
1096 if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) {
1097 if ((*lock_flags & DAV_PROP_LOCKEX) &&
1098 (*lock_flags & DAV_PROP_LOCKWR)) {
1099 *lock_flags |= DAV_LOCK_OK;
1100 }
1101 *lock_flags &= DAV_LOCK_OK;
1102 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) {
1103 *lock_flags |= DAV_PROP_LOCKWR;
1104 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) {
1105 *lock_flags |= DAV_PROP_LOCKEX;
1106 }
1107 }
26349b2e
NH
1108}
1109
acf59575 1110static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
26349b2e 1111{
aa1dbc98 1112 struct remote_lock *lock = (struct remote_lock *)ctx->userData;
acf59575
NH
1113
1114 if (tag_closed && ctx->cdata) {
1115 if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
1116 lock->owner = xmalloc(strlen(ctx->cdata) + 1);
1117 strcpy(lock->owner, ctx->cdata);
1118 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) {
cc44c765 1119 if (!prefixcmp(ctx->cdata, "Second-"))
acf59575
NH
1120 lock->timeout =
1121 strtol(ctx->cdata + 7, NULL, 10);
1122 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
cc44c765 1123 if (!prefixcmp(ctx->cdata, "opaquelocktoken:")) {
3e2f62be 1124 lock->token = xmalloc(strlen(ctx->cdata) - 15);
acf59575
NH
1125 strcpy(lock->token, ctx->cdata + 16);
1126 }
1127 }
26349b2e
NH
1128 }
1129}
1130
aa1dbc98 1131static void one_remote_ref(char *refname);
aa1dbc98 1132
26349b2e 1133static void
acf59575 1134xml_start_tag(void *userData, const char *name, const char **atts)
26349b2e 1135{
acf59575 1136 struct xml_ctx *ctx = (struct xml_ctx *)userData;
ef9e58c8 1137 const char *c = strchr(name, ':');
acf59575
NH
1138 int new_len;
1139
1140 if (c == NULL)
1141 c = name;
1142 else
1143 c++;
1144
1145 new_len = strlen(ctx->name) + strlen(c) + 2;
1146
1147 if (new_len > ctx->len) {
1148 ctx->name = xrealloc(ctx->name, new_len);
1149 ctx->len = new_len;
26349b2e 1150 }
acf59575
NH
1151 strcat(ctx->name, ".");
1152 strcat(ctx->name, c);
26349b2e 1153
4cac42b1
JH
1154 free(ctx->cdata);
1155 ctx->cdata = NULL;
acf59575
NH
1156
1157 ctx->userFunc(ctx, 0);
26349b2e
NH
1158}
1159
58e60dd2 1160static void
acf59575 1161xml_end_tag(void *userData, const char *name)
58e60dd2 1162{
acf59575 1163 struct xml_ctx *ctx = (struct xml_ctx *)userData;
ef9e58c8 1164 const char *c = strchr(name, ':');
acf59575 1165 char *ep;
58e60dd2 1166
acf59575
NH
1167 ctx->userFunc(ctx, 1);
1168
1169 if (c == NULL)
1170 c = name;
1171 else
1172 c++;
1173
1174 ep = ctx->name + strlen(ctx->name) - strlen(c) - 1;
1175 *ep = 0;
58e60dd2
NH
1176}
1177
1178static void
acf59575 1179xml_cdata(void *userData, const XML_Char *s, int len)
58e60dd2 1180{
acf59575 1181 struct xml_ctx *ctx = (struct xml_ctx *)userData;
4cac42b1 1182 free(ctx->cdata);
182af834 1183 ctx->cdata = xmemdupz(s, len);
58e60dd2
NH
1184}
1185
554fe20d 1186static struct remote_lock *lock_remote(const char *path, long timeout)
58e60dd2
NH
1187{
1188 struct active_request_slot *slot;
baa7b67d 1189 struct slot_results results;
028c2976
MH
1190 struct buffer out_buffer = { STRBUF_INIT, 0 };
1191 struct strbuf in_buffer = STRBUF_INIT;
58e60dd2 1192 char *url;
0772b9a6 1193 char *ep;
58e60dd2 1194 char timeout_header[25];
512d632c 1195 struct remote_lock *lock = NULL;
58e60dd2 1196 struct curl_slist *dav_headers = NULL;
acf59575 1197 struct xml_ctx ctx;
58e60dd2 1198
aa1dbc98
NH
1199 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
1200 sprintf(url, "%s%s", remote->url, path);
1201
0772b9a6 1202 /* Make sure leading directories exist for the remote ref */
2c46759d 1203 ep = strchr(url + strlen(remote->url) + 1, '/');
0772b9a6
NH
1204 while (ep) {
1205 *ep = 0;
1206 slot = get_active_slot();
baa7b67d 1207 slot->results = &results;
0772b9a6
NH
1208 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1209 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1210 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
1211 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1212 if (start_active_slot(slot)) {
1213 run_active_slot(slot);
baa7b67d
NH
1214 if (results.curl_result != CURLE_OK &&
1215 results.http_code != 405) {
0772b9a6
NH
1216 fprintf(stderr,
1217 "Unable to create branch path %s\n",
1218 url);
1219 free(url);
1220 return NULL;
1221 }
1222 } else {
1a703cba 1223 fprintf(stderr, "Unable to start MKCOL request\n");
0772b9a6
NH
1224 free(url);
1225 return NULL;
1226 }
1227 *ep = '/';
1228 ep = strchr(ep + 1, '/');
1229 }
1230
028c2976 1231 strbuf_addf(&out_buffer.buf, LOCK_REQUEST, git_default_email);
26349b2e 1232
75187c9d 1233 sprintf(timeout_header, "Timeout: Second-%ld", timeout);
58e60dd2
NH
1234 dav_headers = curl_slist_append(dav_headers, timeout_header);
1235 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1236
1237 slot = get_active_slot();
baa7b67d 1238 slot->results = &results;
58e60dd2 1239 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1240 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
58e60dd2 1241 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
26349b2e 1242 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
29508e1e 1243 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
58e60dd2
NH
1244 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1245 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1246 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
1247 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1248
aa1dbc98 1249 lock = xcalloc(1, sizeof(*lock));
aa1dbc98 1250 lock->timeout = -1;
acf59575 1251
58e60dd2
NH
1252 if (start_active_slot(slot)) {
1253 run_active_slot(slot);
baa7b67d 1254 if (results.curl_result == CURLE_OK) {
472b2570
MH
1255 XML_Parser parser = XML_ParserCreate(NULL);
1256 enum XML_Status result;
acf59575
NH
1257 ctx.name = xcalloc(10, 1);
1258 ctx.len = 0;
1259 ctx.cdata = NULL;
1260 ctx.userFunc = handle_new_lock_ctx;
aa1dbc98 1261 ctx.userData = lock;
acf59575
NH
1262 XML_SetUserData(parser, &ctx);
1263 XML_SetElementHandler(parser, xml_start_tag,
1264 xml_end_tag);
1265 XML_SetCharacterDataHandler(parser, xml_cdata);
028c2976
MH
1266 result = XML_Parse(parser, in_buffer.buf,
1267 in_buffer.len, 1);
acf59575
NH
1268 free(ctx.name);
1269 if (result != XML_STATUS_OK) {
1270 fprintf(stderr, "XML error: %s\n",
1271 XML_ErrorString(
1272 XML_GetErrorCode(parser)));
aa1dbc98 1273 lock->timeout = -1;
acf59575 1274 }
472b2570 1275 XML_ParserFree(parser);
58e60dd2
NH
1276 }
1277 } else {
1a703cba 1278 fprintf(stderr, "Unable to start LOCK request\n");
58e60dd2
NH
1279 }
1280
acf59575 1281 curl_slist_free_all(dav_headers);
028c2976
MH
1282 strbuf_release(&out_buffer.buf);
1283 strbuf_release(&in_buffer);
26349b2e 1284
aa1dbc98 1285 if (lock->token == NULL || lock->timeout <= 0) {
8e0f7003
JM
1286 free(lock->token);
1287 free(lock->owner);
75187c9d 1288 free(url);
aa1dbc98
NH
1289 free(lock);
1290 lock = NULL;
acf59575 1291 } else {
aa1dbc98 1292 lock->url = url;
aa1dbc98 1293 lock->start_time = time(NULL);
512d632c
NH
1294 lock->next = remote->locks;
1295 remote->locks = lock;
26349b2e
NH
1296 }
1297
aa1dbc98 1298 return lock;
58e60dd2
NH
1299}
1300
aa1dbc98 1301static int unlock_remote(struct remote_lock *lock)
58e60dd2
NH
1302{
1303 struct active_request_slot *slot;
baa7b67d 1304 struct slot_results results;
512d632c 1305 struct remote_lock *prev = remote->locks;
58e60dd2
NH
1306 char *lock_token_header;
1307 struct curl_slist *dav_headers = NULL;
1308 int rc = 0;
1309
26349b2e 1310 lock_token_header = xmalloc(strlen(lock->token) + 31);
58e60dd2 1311 sprintf(lock_token_header, "Lock-Token: <opaquelocktoken:%s>",
26349b2e 1312 lock->token);
58e60dd2
NH
1313 dav_headers = curl_slist_append(dav_headers, lock_token_header);
1314
1315 slot = get_active_slot();
baa7b67d 1316 slot->results = &results;
58e60dd2 1317 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
75187c9d 1318 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
58e60dd2
NH
1319 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK);
1320 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1321
1322 if (start_active_slot(slot)) {
1323 run_active_slot(slot);
baa7b67d 1324 if (results.curl_result == CURLE_OK)
58e60dd2
NH
1325 rc = 1;
1326 else
512d632c 1327 fprintf(stderr, "UNLOCK HTTP error %ld\n",
baa7b67d 1328 results.http_code);
58e60dd2 1329 } else {
512d632c 1330 fprintf(stderr, "Unable to start UNLOCK request\n");
58e60dd2
NH
1331 }
1332
1333 curl_slist_free_all(dav_headers);
1334 free(lock_token_header);
75187c9d 1335
512d632c
NH
1336 if (remote->locks == lock) {
1337 remote->locks = lock->next;
1338 } else {
1339 while (prev && prev->next != lock)
1340 prev = prev->next;
1341 if (prev)
1342 prev->next = prev->next->next;
1343 }
1344
8e0f7003 1345 free(lock->owner);
512d632c
NH
1346 free(lock->url);
1347 free(lock->token);
1348 free(lock);
58e60dd2
NH
1349
1350 return rc;
1351}
1352
6a491a17
CB
1353static void remove_locks(void)
1354{
1355 struct remote_lock *lock = remote->locks;
1356
1357 fprintf(stderr, "Removing remote locks...\n");
1358 while (lock) {
1359 unlock_remote(lock);
1360 lock = lock->next;
1361 }
1362}
1363
1364static void remove_locks_on_signal(int signo)
1365{
1366 remove_locks();
1367 signal(signo, SIG_DFL);
1368 raise(signo);
1369}
1370
3030baa7
NH
1371static void remote_ls(const char *path, int flags,
1372 void (*userFunc)(struct remote_ls_ctx *ls),
1373 void *userData);
aa1dbc98 1374
3030baa7
NH
1375static void process_ls_object(struct remote_ls_ctx *ls)
1376{
1377 unsigned int *parent = (unsigned int *)ls->userData;
1378 char *path = ls->dentry_name;
1379 char *obj_hex;
aa1dbc98 1380
3030baa7
NH
1381 if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) {
1382 remote_dir_exists[*parent] = 1;
1383 return;
1384 }
aa1dbc98 1385
3030baa7
NH
1386 if (strlen(path) != 49)
1387 return;
1388 path += 8;
1389 obj_hex = xmalloc(strlen(path));
eecc8367
ER
1390 /* NB: path is not null-terminated, can not use strlcpy here */
1391 memcpy(obj_hex, path, 2);
3030baa7
NH
1392 strcpy(obj_hex + 2, path + 3);
1393 one_remote_object(obj_hex);
1394 free(obj_hex);
1395}
aa1dbc98 1396
3030baa7
NH
1397static void process_ls_ref(struct remote_ls_ctx *ls)
1398{
1399 if (!strcmp(ls->path, ls->dentry_name) && (ls->dentry_flags & IS_DIR)) {
1400 fprintf(stderr, " %s\n", ls->dentry_name);
1401 return;
1402 }
aa1dbc98 1403
3030baa7
NH
1404 if (!(ls->dentry_flags & IS_DIR))
1405 one_remote_ref(ls->dentry_name);
1406}
aa1dbc98 1407
3030baa7
NH
1408static void handle_remote_ls_ctx(struct xml_ctx *ctx, int tag_closed)
1409{
1410 struct remote_ls_ctx *ls = (struct remote_ls_ctx *)ctx->userData;
aa1dbc98 1411
3030baa7
NH
1412 if (tag_closed) {
1413 if (!strcmp(ctx->name, DAV_PROPFIND_RESP) && ls->dentry_name) {
1414 if (ls->dentry_flags & IS_DIR) {
1415 if (ls->flags & PROCESS_DIRS) {
1416 ls->userFunc(ls);
1417 }
1418 if (strcmp(ls->dentry_name, ls->path) &&
1419 ls->flags & RECURSIVE) {
1420 remote_ls(ls->dentry_name,
1421 ls->flags,
1422 ls->userFunc,
1423 ls->userData);
1424 }
1425 } else if (ls->flags & PROCESS_FILES) {
1426 ls->userFunc(ls);
aa1dbc98 1427 }
3030baa7
NH
1428 } else if (!strcmp(ctx->name, DAV_PROPFIND_NAME) && ctx->cdata) {
1429 ls->dentry_name = xmalloc(strlen(ctx->cdata) -
1430 remote->path_len + 1);
1431 strcpy(ls->dentry_name, ctx->cdata + remote->path_len);
1432 } else if (!strcmp(ctx->name, DAV_PROPFIND_COLLECTION)) {
1433 ls->dentry_flags |= IS_DIR;
aa1dbc98 1434 }
3030baa7 1435 } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
4cac42b1 1436 free(ls->dentry_name);
3030baa7
NH
1437 ls->dentry_name = NULL;
1438 ls->dentry_flags = 0;
aa1dbc98 1439 }
aa1dbc98
NH
1440}
1441
3030baa7
NH
1442static void remote_ls(const char *path, int flags,
1443 void (*userFunc)(struct remote_ls_ctx *ls),
1444 void *userData)
aa1dbc98 1445{
3030baa7 1446 char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
aa1dbc98 1447 struct active_request_slot *slot;
baa7b67d 1448 struct slot_results results;
028c2976
MH
1449 struct strbuf in_buffer = STRBUF_INIT;
1450 struct buffer out_buffer = { STRBUF_INIT, 0 };
aa1dbc98
NH
1451 struct curl_slist *dav_headers = NULL;
1452 struct xml_ctx ctx;
3030baa7
NH
1453 struct remote_ls_ctx ls;
1454
1455 ls.flags = flags;
9befac47 1456 ls.path = xstrdup(path);
3030baa7
NH
1457 ls.dentry_name = NULL;
1458 ls.dentry_flags = 0;
1459 ls.userData = userData;
1460 ls.userFunc = userFunc;
aa1dbc98 1461
aa1dbc98
NH
1462 sprintf(url, "%s%s", remote->url, path);
1463
028c2976 1464 strbuf_addf(&out_buffer.buf, PROPFIND_ALL_REQUEST);
aa1dbc98
NH
1465
1466 dav_headers = curl_slist_append(dav_headers, "Depth: 1");
1467 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1468
1469 slot = get_active_slot();
baa7b67d 1470 slot->results = &results;
aa1dbc98 1471 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1472 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
aa1dbc98
NH
1473 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1474 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1475 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1476 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1477 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1478 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1479 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1480
1481 if (start_active_slot(slot)) {
1482 run_active_slot(slot);
baa7b67d 1483 if (results.curl_result == CURLE_OK) {
472b2570
MH
1484 XML_Parser parser = XML_ParserCreate(NULL);
1485 enum XML_Status result;
aa1dbc98
NH
1486 ctx.name = xcalloc(10, 1);
1487 ctx.len = 0;
1488 ctx.cdata = NULL;
3030baa7
NH
1489 ctx.userFunc = handle_remote_ls_ctx;
1490 ctx.userData = &ls;
aa1dbc98
NH
1491 XML_SetUserData(parser, &ctx);
1492 XML_SetElementHandler(parser, xml_start_tag,
1493 xml_end_tag);
1494 XML_SetCharacterDataHandler(parser, xml_cdata);
028c2976
MH
1495 result = XML_Parse(parser, in_buffer.buf,
1496 in_buffer.len, 1);
aa1dbc98
NH
1497 free(ctx.name);
1498
1499 if (result != XML_STATUS_OK) {
1500 fprintf(stderr, "XML error: %s\n",
1501 XML_ErrorString(
1502 XML_GetErrorCode(parser)));
1503 }
472b2570 1504 XML_ParserFree(parser);
aa1dbc98
NH
1505 }
1506 } else {
3030baa7 1507 fprintf(stderr, "Unable to start PROPFIND request\n");
aa1dbc98
NH
1508 }
1509
3030baa7 1510 free(ls.path);
aa1dbc98 1511 free(url);
028c2976
MH
1512 strbuf_release(&out_buffer.buf);
1513 strbuf_release(&in_buffer);
aa1dbc98
NH
1514 curl_slist_free_all(dav_headers);
1515}
1516
3030baa7
NH
1517static void get_remote_object_list(unsigned char parent)
1518{
1519 char path[] = "objects/XX/";
1520 static const char hex[] = "0123456789abcdef";
1521 unsigned int val = parent;
1522
1523 path[8] = hex[val >> 4];
1524 path[9] = hex[val & 0xf];
1525 remote_dir_exists[val] = 0;
1526 remote_ls(path, (PROCESS_FILES | PROCESS_DIRS),
1527 process_ls_object, &val);
1528}
1529
acf59575 1530static int locking_available(void)
58e60dd2
NH
1531{
1532 struct active_request_slot *slot;
baa7b67d 1533 struct slot_results results;
028c2976
MH
1534 struct strbuf in_buffer = STRBUF_INIT;
1535 struct buffer out_buffer = { STRBUF_INIT, 0 };
58e60dd2 1536 struct curl_slist *dav_headers = NULL;
acf59575
NH
1537 struct xml_ctx ctx;
1538 int lock_flags = 0;
58e60dd2 1539
028c2976 1540 strbuf_addf(&out_buffer.buf, PROPFIND_SUPPORTEDLOCK_REQUEST, remote->url);
58e60dd2
NH
1541
1542 dav_headers = curl_slist_append(dav_headers, "Depth: 0");
1543 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
baa7b67d 1544
58e60dd2 1545 slot = get_active_slot();
baa7b67d 1546 slot->results = &results;
58e60dd2 1547 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1548 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
58e60dd2
NH
1549 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1550 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
29508e1e 1551 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
58e60dd2
NH
1552 curl_easy_setopt(slot->curl, CURLOPT_URL, remote->url);
1553 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1554 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1555 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1556
1557 if (start_active_slot(slot)) {
1558 run_active_slot(slot);
baa7b67d 1559 if (results.curl_result == CURLE_OK) {
472b2570
MH
1560 XML_Parser parser = XML_ParserCreate(NULL);
1561 enum XML_Status result;
acf59575
NH
1562 ctx.name = xcalloc(10, 1);
1563 ctx.len = 0;
1564 ctx.cdata = NULL;
1565 ctx.userFunc = handle_lockprop_ctx;
1566 ctx.userData = &lock_flags;
1567 XML_SetUserData(parser, &ctx);
1568 XML_SetElementHandler(parser, xml_start_tag,
1569 xml_end_tag);
028c2976
MH
1570 result = XML_Parse(parser, in_buffer.buf,
1571 in_buffer.len, 1);
acf59575
NH
1572 free(ctx.name);
1573
1574 if (result != XML_STATUS_OK) {
1575 fprintf(stderr, "XML error: %s\n",
1576 XML_ErrorString(
1577 XML_GetErrorCode(parser)));
1578 lock_flags = 0;
1579 }
472b2570 1580 XML_ParserFree(parser);
325ce395
JH
1581 if (!lock_flags)
1582 error("Error: no DAV locking support on %s",
1583 remote->url);
1584
1585 } else {
1586 error("Cannot access URL %s, return code %d",
1587 remote->url, results.curl_result);
1588 lock_flags = 0;
58e60dd2 1589 }
58e60dd2 1590 } else {
325ce395 1591 error("Unable to start PROPFIND request on %s", remote->url);
58e60dd2
NH
1592 }
1593
028c2976
MH
1594 strbuf_release(&out_buffer.buf);
1595 strbuf_release(&in_buffer);
acf59575
NH
1596 curl_slist_free_all(dav_headers);
1597
1598 return lock_flags;
58e60dd2
NH
1599}
1600
b5bf7cd6 1601static struct object_list **add_one_object(struct object *obj, struct object_list **p)
1f1e895f
LT
1602{
1603 struct object_list *entry = xmalloc(sizeof(struct object_list));
1604 entry->item = obj;
1605 entry->next = *p;
1606 *p = entry;
1607 return &entry->next;
1608}
1609
aa1dbc98
NH
1610static struct object_list **process_blob(struct blob *blob,
1611 struct object_list **p,
1612 struct name_path *path,
1613 const char *name)
58e60dd2 1614{
aa1dbc98 1615 struct object *obj = &blob->object;
58e60dd2 1616
aa1dbc98
NH
1617 obj->flags |= LOCAL;
1618
1619 if (obj->flags & (UNINTERESTING | SEEN))
1620 return p;
1621
1622 obj->flags |= SEEN;
1f1e895f 1623 return add_one_object(obj, p);
aa1dbc98
NH
1624}
1625
1626static struct object_list **process_tree(struct tree *tree,
1627 struct object_list **p,
1628 struct name_path *path,
1629 const char *name)
1630{
1631 struct object *obj = &tree->object;
2d9c58c6 1632 struct tree_desc desc;
4c068a98 1633 struct name_entry entry;
aa1dbc98
NH
1634 struct name_path me;
1635
1636 obj->flags |= LOCAL;
1637
1638 if (obj->flags & (UNINTERESTING | SEEN))
1639 return p;
1640 if (parse_tree(tree) < 0)
1641 die("bad tree object %s", sha1_to_hex(obj->sha1));
1642
1643 obj->flags |= SEEN;
9befac47 1644 name = xstrdup(name);
1f1e895f 1645 p = add_one_object(obj, p);
aa1dbc98
NH
1646 me.up = path;
1647 me.elem = name;
1648 me.elem_len = strlen(name);
2d9c58c6 1649
6fda5e51 1650 init_tree_desc(&desc, tree->buffer, tree->size);
2d9c58c6 1651
1bbeb4c6
JS
1652 while (tree_entry(&desc, &entry))
1653 switch (object_type(entry.mode)) {
1654 case OBJ_TREE:
4c068a98 1655 p = process_tree(lookup_tree(entry.sha1), p, &me, name);
1bbeb4c6
JS
1656 break;
1657 case OBJ_BLOB:
4c068a98 1658 p = process_blob(lookup_blob(entry.sha1), p, &me, name);
1bbeb4c6
JS
1659 break;
1660 default:
1661 /* Subproject commit - not in this repository */
1662 break;
1663 }
1664
2d9c58c6
LT
1665 free(tree->buffer);
1666 tree->buffer = NULL;
aa1dbc98 1667 return p;
58e60dd2
NH
1668}
1669
1a703cba 1670static int get_delta(struct rev_info *revs, struct remote_lock *lock)
58e60dd2 1671{
1f1e895f 1672 int i;
58e60dd2 1673 struct commit *commit;
1f1e895f 1674 struct object_list **p = &objects;
1a703cba 1675 int count = 0;
58e60dd2 1676
aa1dbc98
NH
1677 while ((commit = get_revision(revs)) != NULL) {
1678 p = process_tree(commit->tree, p, NULL, "");
1679 commit->object.flags |= LOCAL;
1680 if (!(commit->object.flags & UNINTERESTING))
1a703cba 1681 count += add_send_request(&commit->object, lock);
aa1dbc98 1682 }
58e60dd2 1683
1f1e895f
LT
1684 for (i = 0; i < revs->pending.nr; i++) {
1685 struct object_array_entry *entry = revs->pending.objects + i;
1686 struct object *obj = entry->item;
1687 const char *name = entry->name;
58e60dd2 1688
aa1dbc98
NH
1689 if (obj->flags & (UNINTERESTING | SEEN))
1690 continue;
1974632c 1691 if (obj->type == OBJ_TAG) {
aa1dbc98 1692 obj->flags |= SEEN;
1f1e895f 1693 p = add_one_object(obj, p);
aa1dbc98 1694 continue;
58e60dd2 1695 }
1974632c 1696 if (obj->type == OBJ_TREE) {
aa1dbc98
NH
1697 p = process_tree((struct tree *)obj, p, NULL, name);
1698 continue;
58e60dd2 1699 }
1974632c 1700 if (obj->type == OBJ_BLOB) {
aa1dbc98
NH
1701 p = process_blob((struct blob *)obj, p, NULL, name);
1702 continue;
58e60dd2 1703 }
aa1dbc98
NH
1704 die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
1705 }
1706
1707 while (objects) {
1708 if (!(objects->item->flags & UNINTERESTING))
1a703cba 1709 count += add_send_request(objects->item, lock);
aa1dbc98 1710 objects = objects->next;
58e60dd2 1711 }
1a703cba
NH
1712
1713 return count;
58e60dd2
NH
1714}
1715
aa1dbc98 1716static int update_remote(unsigned char *sha1, struct remote_lock *lock)
58e60dd2
NH
1717{
1718 struct active_request_slot *slot;
baa7b67d 1719 struct slot_results results;
58e60dd2 1720 char *if_header;
028c2976 1721 struct buffer out_buffer = { STRBUF_INIT, 0 };
58e60dd2 1722 struct curl_slist *dav_headers = NULL;
58e60dd2 1723
26349b2e
NH
1724 if_header = xmalloc(strlen(lock->token) + 25);
1725 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
58e60dd2
NH
1726 dav_headers = curl_slist_append(dav_headers, if_header);
1727
028c2976 1728 strbuf_addf(&out_buffer.buf, "%s\n", sha1_to_hex(sha1));
58e60dd2
NH
1729
1730 slot = get_active_slot();
baa7b67d 1731 slot->results = &results;
58e60dd2 1732 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1733 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
58e60dd2
NH
1734 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1735 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1736 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
1737 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1738 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1739 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
75187c9d 1740 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
58e60dd2
NH
1741
1742 if (start_active_slot(slot)) {
1743 run_active_slot(slot);
028c2976 1744 strbuf_release(&out_buffer.buf);
58e60dd2 1745 free(if_header);
baa7b67d 1746 if (results.curl_result != CURLE_OK) {
58e60dd2
NH
1747 fprintf(stderr,
1748 "PUT error: curl result=%d, HTTP code=%ld\n",
baa7b67d 1749 results.curl_result, results.http_code);
58e60dd2
NH
1750 /* We should attempt recovery? */
1751 return 0;
1752 }
1753 } else {
028c2976 1754 strbuf_release(&out_buffer.buf);
58e60dd2 1755 free(if_header);
58e60dd2
NH
1756 fprintf(stderr, "Unable to start PUT request\n");
1757 return 0;
1758 }
1759
1760 return 1;
1761}
1762
aa1dbc98
NH
1763static struct ref *local_refs, **local_tail;
1764static struct ref *remote_refs, **remote_tail;
1765
8da19775 1766static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
aa1dbc98
NH
1767{
1768 struct ref *ref;
1769 int len = strlen(refname) + 1;
1770 ref = xcalloc(1, sizeof(*ref) + len);
e702496e 1771 hashcpy(ref->new_sha1, sha1);
aa1dbc98
NH
1772 memcpy(ref->name, refname, len);
1773 *local_tail = ref;
1774 local_tail = &ref->next;
1775 return 0;
1776}
1777
1778static void one_remote_ref(char *refname)
1779{
1780 struct ref *ref;
197e8951 1781 struct object *obj;
aa1dbc98 1782
737922aa 1783 ref = alloc_ref_from_str(refname);
c13b2633
DB
1784
1785 if (http_fetch_ref(remote->url, ref) != 0) {
aa1dbc98
NH
1786 fprintf(stderr,
1787 "Unable to fetch ref %s from %s\n",
1788 refname, remote->url);
c13b2633 1789 free(ref);
aa1dbc98
NH
1790 return;
1791 }
1792
197e8951
NH
1793 /*
1794 * Fetch a copy of the object if it doesn't exist locally - it
1795 * may be required for updating server info later.
1796 */
c13b2633
DB
1797 if (remote->can_update_info_refs && !has_sha1_file(ref->old_sha1)) {
1798 obj = lookup_unknown_object(ref->old_sha1);
197e8951
NH
1799 if (obj) {
1800 fprintf(stderr, " fetch %s for %s\n",
c13b2633 1801 sha1_to_hex(ref->old_sha1), refname);
197e8951
NH
1802 add_fetch_request(obj);
1803 }
1804 }
1805
aa1dbc98
NH
1806 *remote_tail = ref;
1807 remote_tail = &ref->next;
1808}
1809
1810static void get_local_heads(void)
1811{
1812 local_tail = &local_refs;
cb5d709f 1813 for_each_ref(one_local_ref, NULL);
aa1dbc98
NH
1814}
1815
1816static void get_dav_remote_heads(void)
1817{
1818 remote_tail = &remote_refs;
3030baa7 1819 remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL);
aa1dbc98
NH
1820}
1821
1822static int is_zero_sha1(const unsigned char *sha1)
1823{
1824 int i;
1825
1826 for (i = 0; i < 20; i++) {
1827 if (*sha1++)
1828 return 0;
1829 }
1830 return 1;
1831}
1832
1833static void unmark_and_free(struct commit_list *list, unsigned int mark)
1834{
1835 while (list) {
1836 struct commit_list *temp = list;
1837 temp->item->object.flags &= ~mark;
1838 list = temp->next;
1839 free(temp);
1840 }
1841}
1842
1843static int ref_newer(const unsigned char *new_sha1,
1844 const unsigned char *old_sha1)
1845{
1846 struct object *o;
1847 struct commit *old, *new;
1848 struct commit_list *list, *used;
1849 int found = 0;
1850
1851 /* Both new and old must be commit-ish and new is descendant of
1852 * old. Otherwise we require --force.
1853 */
1854 o = deref_tag(parse_object(old_sha1), NULL, 0);
1974632c 1855 if (!o || o->type != OBJ_COMMIT)
aa1dbc98
NH
1856 return 0;
1857 old = (struct commit *) o;
1858
1859 o = deref_tag(parse_object(new_sha1), NULL, 0);
1974632c 1860 if (!o || o->type != OBJ_COMMIT)
aa1dbc98
NH
1861 return 0;
1862 new = (struct commit *) o;
1863
1864 if (parse_commit(new) < 0)
1865 return 0;
1866
1867 used = list = NULL;
1868 commit_list_insert(new, &list);
1869 while (list) {
1870 new = pop_most_recent_commit(&list, TMP_MARK);
1871 commit_list_insert(new, &used);
1872 if (new == old) {
1873 found = 1;
1874 break;
1875 }
1876 }
1877 unmark_and_free(list, TMP_MARK);
1878 unmark_and_free(used, TMP_MARK);
1879 return found;
1880}
1881
197e8951
NH
1882static void add_remote_info_ref(struct remote_ls_ctx *ls)
1883{
028c2976 1884 struct strbuf *buf = (struct strbuf *)ls->userData;
197e8951
NH
1885 struct object *o;
1886 int len;
1887 char *ref_info;
c13b2633
DB
1888 struct ref *ref;
1889
737922aa 1890 ref = alloc_ref_from_str(ls->dentry_name);
197e8951 1891
c13b2633 1892 if (http_fetch_ref(remote->url, ref) != 0) {
197e8951
NH
1893 fprintf(stderr,
1894 "Unable to fetch ref %s from %s\n",
1895 ls->dentry_name, remote->url);
1896 aborted = 1;
c13b2633 1897 free(ref);
197e8951
NH
1898 return;
1899 }
1900
c13b2633 1901 o = parse_object(ref->old_sha1);
197e8951
NH
1902 if (!o) {
1903 fprintf(stderr,
1904 "Unable to parse object %s for remote ref %s\n",
c13b2633 1905 sha1_to_hex(ref->old_sha1), ls->dentry_name);
197e8951 1906 aborted = 1;
c13b2633 1907 free(ref);
197e8951
NH
1908 return;
1909 }
1910
1911 len = strlen(ls->dentry_name) + 42;
1912 ref_info = xcalloc(len + 1, 1);
1913 sprintf(ref_info, "%s %s\n",
c13b2633 1914 sha1_to_hex(ref->old_sha1), ls->dentry_name);
197e8951
NH
1915 fwrite_buffer(ref_info, 1, len, buf);
1916 free(ref_info);
1917
1974632c 1918 if (o->type == OBJ_TAG) {
197e8951
NH
1919 o = deref_tag(o, ls->dentry_name, 0);
1920 if (o) {
1921 len = strlen(ls->dentry_name) + 45;
1922 ref_info = xcalloc(len + 1, 1);
1923 sprintf(ref_info, "%s %s^{}\n",
1924 sha1_to_hex(o->sha1), ls->dentry_name);
1925 fwrite_buffer(ref_info, 1, len, buf);
1926 free(ref_info);
1927 }
1928 }
c13b2633 1929 free(ref);
197e8951
NH
1930}
1931
1932static void update_remote_info_refs(struct remote_lock *lock)
1933{
028c2976 1934 struct buffer buffer = { STRBUF_INIT, 0 };
197e8951
NH
1935 struct active_request_slot *slot;
1936 struct slot_results results;
1937 char *if_header;
1938 struct curl_slist *dav_headers = NULL;
1939
197e8951 1940 remote_ls("refs/", (PROCESS_FILES | RECURSIVE),
028c2976 1941 add_remote_info_ref, &buffer.buf);
197e8951
NH
1942 if (!aborted) {
1943 if_header = xmalloc(strlen(lock->token) + 25);
1944 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
1945 dav_headers = curl_slist_append(dav_headers, if_header);
1946
1947 slot = get_active_slot();
1948 slot->results = &results;
1949 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &buffer);
028c2976 1950 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, buffer.buf.len);
197e8951
NH
1951 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1952 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1953 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
1954 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1955 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1956 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
1957 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
1958
197e8951
NH
1959 if (start_active_slot(slot)) {
1960 run_active_slot(slot);
1961 if (results.curl_result != CURLE_OK) {
1962 fprintf(stderr,
1963 "PUT error: curl result=%d, HTTP code=%ld\n",
1964 results.curl_result, results.http_code);
1965 }
1966 }
1967 free(if_header);
1968 }
028c2976 1969 strbuf_release(&buffer.buf);
197e8951
NH
1970}
1971
1972static int remote_exists(const char *path)
1973{
1974 char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
1975 struct active_request_slot *slot;
1976 struct slot_results results;
3a462bc9 1977 int ret = -1;
197e8951
NH
1978
1979 sprintf(url, "%s%s", remote->url, path);
1980
028c2976 1981 slot = get_active_slot();
197e8951 1982 slot->results = &results;
028c2976
MH
1983 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1984 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
197e8951 1985
028c2976 1986 if (start_active_slot(slot)) {
197e8951
NH
1987 run_active_slot(slot);
1988 if (results.http_code == 404)
3a462bc9 1989 ret = 0;
197e8951 1990 else if (results.curl_result == CURLE_OK)
3a462bc9 1991 ret = 1;
197e8951
NH
1992 else
1993 fprintf(stderr, "HEAD HTTP error %ld\n", results.http_code);
1994 } else {
1995 fprintf(stderr, "Unable to start HEAD request\n");
1996 }
1997
3a462bc9
MH
1998 free(url);
1999 return ret;
197e8951
NH
2000}
2001
554fe20d 2002static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
3dfaf7bc
NH
2003{
2004 char *url;
028c2976 2005 struct strbuf buffer = STRBUF_INIT;
3dfaf7bc
NH
2006 struct active_request_slot *slot;
2007 struct slot_results results;
2008
2009 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
2010 sprintf(url, "%s%s", remote->url, path);
2011
3dfaf7bc
NH
2012 slot = get_active_slot();
2013 slot->results = &results;
2014 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
2015 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
2016 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
2017 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2018 if (start_active_slot(slot)) {
2019 run_active_slot(slot);
2020 if (results.curl_result != CURLE_OK) {
2021 die("Couldn't get %s for remote symref\n%s",
2022 url, curl_errorstr);
2023 }
2024 } else {
2025 die("Unable to start remote symref request");
2026 }
2027 free(url);
2028
8e0f7003 2029 free(*symref);
3dfaf7bc 2030 *symref = NULL;
a8e0d16d 2031 hashclr(sha1);
3dfaf7bc 2032
028c2976 2033 if (buffer.len == 0)
3dfaf7bc
NH
2034 return;
2035
2036 /* If it's a symref, set the refname; otherwise try for a sha1 */
028c2976
MH
2037 if (!prefixcmp((char *)buffer.buf, "ref: ")) {
2038 *symref = xmemdupz((char *)buffer.buf + 5, buffer.len - 6);
3dfaf7bc 2039 } else {
028c2976 2040 get_sha1_hex(buffer.buf, sha1);
3dfaf7bc
NH
2041 }
2042
028c2976 2043 strbuf_release(&buffer);
3dfaf7bc
NH
2044}
2045
2046static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
2047{
61ffbcb9
JS
2048 struct commit *head = lookup_commit(head_sha1);
2049 struct commit *branch = lookup_commit(branch_sha1);
2050 struct commit_list *merge_bases = get_merge_bases(head, branch, 1);
3dfaf7bc 2051
0bc87ffb 2052 return (merge_bases && !merge_bases->next && merge_bases->item == branch);
3dfaf7bc
NH
2053}
2054
2055static int delete_remote_branch(char *pattern, int force)
2056{
2057 struct ref *refs = remote_refs;
2058 struct ref *remote_ref = NULL;
2059 unsigned char head_sha1[20];
2060 char *symref = NULL;
2061 int match;
2062 int patlen = strlen(pattern);
2063 int i;
2064 struct active_request_slot *slot;
2065 struct slot_results results;
2066 char *url;
2067
2068 /* Find the remote branch(es) matching the specified branch name */
2069 for (match = 0; refs; refs = refs->next) {
2070 char *name = refs->name;
2071 int namelen = strlen(name);
2072 if (namelen < patlen ||
2073 memcmp(name + namelen - patlen, pattern, patlen))
2074 continue;
2075 if (namelen != patlen && name[namelen - patlen - 1] != '/')
2076 continue;
2077 match++;
2078 remote_ref = refs;
2079 }
2080 if (match == 0)
2081 return error("No remote branch matches %s", pattern);
2082 if (match != 1)
2083 return error("More than one remote branch matches %s",
2084 pattern);
2085
2086 /*
2087 * Remote HEAD must be a symref (not exactly foolproof; a remote
2088 * symlink to a symref will look like a symref)
2089 */
2090 fetch_symref("HEAD", &symref, head_sha1);
2091 if (!symref)
2092 return error("Remote HEAD is not a symref");
2093
2094 /* Remote branch must not be the remote HEAD */
2095 for (i=0; symref && i<MAXDEPTH; i++) {
2096 if (!strcmp(remote_ref->name, symref))
2097 return error("Remote branch %s is the current HEAD",
2098 remote_ref->name);
2099 fetch_symref(symref, &symref, head_sha1);
2100 }
2101
2102 /* Run extra sanity checks if delete is not forced */
2103 if (!force) {
2104 /* Remote HEAD must resolve to a known object */
2105 if (symref)
2106 return error("Remote HEAD symrefs too deep");
2107 if (is_zero_sha1(head_sha1))
2108 return error("Unable to resolve remote HEAD");
2109 if (!has_sha1_file(head_sha1))
2110 return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", sha1_to_hex(head_sha1));
2111
2112 /* Remote branch must resolve to a known object */
2113 if (is_zero_sha1(remote_ref->old_sha1))
2114 return error("Unable to resolve remote branch %s",
2115 remote_ref->name);
2116 if (!has_sha1_file(remote_ref->old_sha1))
2117 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));
2118
2119 /* Remote branch must be an ancestor of remote HEAD */
2120 if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
00ae8289
BF
2121 return error("The branch '%s' is not an ancestor "
2122 "of your current HEAD.\n"
2123 "If you are sure you want to delete it,"
2124 " run:\n\t'git http-push -D %s %s'",
2125 remote_ref->name, remote->url, pattern);
3dfaf7bc
NH
2126 }
2127 }
2128
2129 /* Send delete request */
2130 fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name);
6eaf4060
CB
2131 if (dry_run)
2132 return 0;
3dfaf7bc
NH
2133 url = xmalloc(strlen(remote->url) + strlen(remote_ref->name) + 1);
2134 sprintf(url, "%s%s", remote->url, remote_ref->name);
2135 slot = get_active_slot();
2136 slot->results = &results;
2137 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
2138 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2139 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2140 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_DELETE);
2141 if (start_active_slot(slot)) {
2142 run_active_slot(slot);
2143 free(url);
2144 if (results.curl_result != CURLE_OK)
2145 return error("DELETE request failed (%d/%ld)\n",
2146 results.curl_result, results.http_code);
2147 } else {
2148 free(url);
2149 return error("Unable to start DELETE request");
2150 }
2151
2152 return 0;
2153}
2154
58e60dd2
NH
2155int main(int argc, char **argv)
2156{
58e60dd2
NH
2157 struct transfer_request *request;
2158 struct transfer_request *next_request;
2159 int nr_refspec = 0;
2160 char **refspec = NULL;
512d632c 2161 struct remote_lock *ref_lock = NULL;
197e8951 2162 struct remote_lock *info_ref_lock = NULL;
aa1dbc98 2163 struct rev_info revs;
3dfaf7bc
NH
2164 int delete_branch = 0;
2165 int force_delete = 0;
1a703cba 2166 int objects_to_send;
58e60dd2
NH
2167 int rc = 0;
2168 int i;
8c9e7947
JH
2169 int new_refs;
2170 struct ref *ref;
3057ded0 2171 char *rewritten_url = NULL;
58e60dd2 2172
5a327713 2173 setup_git_directory();
58e60dd2 2174
512d632c 2175 remote = xcalloc(sizeof(*remote), 1);
58e60dd2
NH
2176
2177 argv++;
2178 for (i = 1; i < argc; i++, argv++) {
2179 char *arg = *argv;
2180
2181 if (*arg == '-') {
aa1dbc98 2182 if (!strcmp(arg, "--all")) {
28b9d6e5 2183 push_all = MATCH_REFS_ALL;
58e60dd2
NH
2184 continue;
2185 }
2186 if (!strcmp(arg, "--force")) {
2187 force_all = 1;
2188 continue;
2189 }
fe5d1d3e
SP
2190 if (!strcmp(arg, "--dry-run")) {
2191 dry_run = 1;
2192 continue;
2193 }
58e60dd2
NH
2194 if (!strcmp(arg, "--verbose")) {
2195 push_verbosely = 1;
2196 continue;
2197 }
3dfaf7bc
NH
2198 if (!strcmp(arg, "-d")) {
2199 delete_branch = 1;
2200 continue;
2201 }
2202 if (!strcmp(arg, "-D")) {
2203 delete_branch = 1;
2204 force_delete = 1;
2205 continue;
2206 }
58e60dd2
NH
2207 }
2208 if (!remote->url) {
aa1dbc98 2209 char *path = strstr(arg, "//");
8c9e7947 2210 remote->url = arg;
aa1dbc98 2211 if (path) {
ef9e58c8 2212 path = strchr(path+2, '/');
aa1dbc98
NH
2213 if (path)
2214 remote->path_len = strlen(path);
2215 }
58e60dd2
NH
2216 continue;
2217 }
2218 refspec = argv;
2219 nr_refspec = argc - i;
2220 break;
2221 }
2222
f854824b
GB
2223#ifndef USE_CURL_MULTI
2224 die("git-push is not available for http/https repository when not compiled with USE_CURL_MULTI");
2225#endif
2226
3e9fabc8
NH
2227 if (!remote->url)
2228 usage(http_push_usage);
2229
3dfaf7bc
NH
2230 if (delete_branch && nr_refspec != 1)
2231 die("You must specify only one branch name when deleting a remote branch");
2232
aa1dbc98 2233 memset(remote_dir_exists, -1, 256);
0dd276b8 2234
9fc6440d 2235 http_init(NULL);
58e60dd2
NH
2236
2237 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
58e60dd2 2238
3057ded0 2239 if (remote->url && remote->url[strlen(remote->url)-1] != '/') {
e8eec71d 2240 rewritten_url = xmalloc(strlen(remote->url)+2);
3057ded0
GB
2241 strcpy(rewritten_url, remote->url);
2242 strcat(rewritten_url, "/");
2243 remote->url = rewritten_url;
2244 ++remote->path_len;
2245 }
2246
58e60dd2 2247 /* Verify DAV compliance/lock support */
acf59575 2248 if (!locking_available()) {
58e60dd2
NH
2249 rc = 1;
2250 goto cleanup;
2251 }
2252
6a491a17
CB
2253 signal(SIGINT, remove_locks_on_signal);
2254 signal(SIGHUP, remove_locks_on_signal);
2255 signal(SIGQUIT, remove_locks_on_signal);
ad5fa3cc 2256 signal(SIGTERM, remove_locks_on_signal);
6a491a17 2257
197e8951
NH
2258 /* Check whether the remote has server info files */
2259 remote->can_update_info_refs = 0;
2260 remote->has_info_refs = remote_exists("info/refs");
2261 remote->has_info_packs = remote_exists("objects/info/packs");
2262 if (remote->has_info_refs) {
2263 info_ref_lock = lock_remote("info/refs", LOCK_TIME);
2264 if (info_ref_lock)
2265 remote->can_update_info_refs = 1;
9bdbabad
GB
2266 else {
2267 fprintf(stderr, "Error: cannot lock existing info/refs\n");
2268 rc = 1;
2269 goto cleanup;
2270 }
197e8951
NH
2271 }
2272 if (remote->has_info_packs)
2273 fetch_indices();
2274
aa1dbc98
NH
2275 /* Get a list of all local and remote heads to validate refspecs */
2276 get_local_heads();
2277 fprintf(stderr, "Fetching remote heads...\n");
2278 get_dav_remote_heads();
2279
3dfaf7bc
NH
2280 /* Remove a remote branch if -d or -D was specified */
2281 if (delete_branch) {
2282 if (delete_remote_branch(refspec[0], force_delete) == -1)
2283 fprintf(stderr, "Unable to delete remote branch %s\n",
2284 refspec[0]);
2285 goto cleanup;
2286 }
2287
aa1dbc98
NH
2288 /* match them up */
2289 if (!remote_tail)
2290 remote_tail = &remote_refs;
2291 if (match_refs(local_refs, remote_refs, &remote_tail,
9116de59
GB
2292 nr_refspec, (const char **) refspec, push_all)) {
2293 rc = -1;
2294 goto cleanup;
2295 }
aa1dbc98
NH
2296 if (!remote_refs) {
2297 fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
9116de59
GB
2298 rc = 0;
2299 goto cleanup;
aa1dbc98
NH
2300 }
2301
8c9e7947 2302 new_refs = 0;
aa1dbc98
NH
2303 for (ref = remote_refs; ref; ref = ref->next) {
2304 char old_hex[60], *new_hex;
8c9e7947
JH
2305 const char *commit_argv[4];
2306 int commit_argc;
2307 char *new_sha1_hex, *old_sha1_hex;
2308
aa1dbc98
NH
2309 if (!ref->peer_ref)
2310 continue;
6eaf4060
CB
2311
2312 if (is_zero_sha1(ref->peer_ref->new_sha1)) {
2313 if (delete_remote_branch(ref->name, 1) == -1) {
2314 error("Could not remove %s", ref->name);
2315 rc = -4;
2316 }
2317 new_refs++;
2318 continue;
2319 }
2320
a89fccd2 2321 if (!hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
aa1dbc98
NH
2322 if (push_verbosely || 1)
2323 fprintf(stderr, "'%s': up-to-date\n", ref->name);
2324 continue;
2325 }
2326
2327 if (!force_all &&
2328 !is_zero_sha1(ref->old_sha1) &&
2329 !ref->force) {
2330 if (!has_sha1_file(ref->old_sha1) ||
2331 !ref_newer(ref->peer_ref->new_sha1,
2332 ref->old_sha1)) {
00ae8289
BF
2333 /*
2334 * We do not have the remote ref, or
aa1dbc98
NH
2335 * we know that the remote ref is not
2336 * an ancestor of what we are trying to
2337 * push. Either way this can be losing
2338 * commits at the remote end and likely
2339 * we were not up to date to begin with.
2340 */
00ae8289
BF
2341 error("remote '%s' is not an ancestor of\n"
2342 "local '%s'.\n"
2343 "Maybe you are not up-to-date and "
aa1dbc98
NH
2344 "need to pull first?",
2345 ref->name,
2346 ref->peer_ref->name);
1a703cba 2347 rc = -2;
aa1dbc98
NH
2348 continue;
2349 }
58e60dd2 2350 }
e702496e 2351 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
aa1dbc98
NH
2352 new_refs++;
2353 strcpy(old_hex, sha1_to_hex(ref->old_sha1));
2354 new_hex = sha1_to_hex(ref->new_sha1);
2355
2356 fprintf(stderr, "updating '%s'", ref->name);
2357 if (strcmp(ref->name, ref->peer_ref->name))
2358 fprintf(stderr, " using '%s'", ref->peer_ref->name);
2359 fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
fe5d1d3e
SP
2360 if (dry_run)
2361 continue;
58e60dd2
NH
2362
2363 /* Lock remote branch ref */
aa1dbc98
NH
2364 ref_lock = lock_remote(ref->name, LOCK_TIME);
2365 if (ref_lock == NULL) {
58e60dd2 2366 fprintf(stderr, "Unable to lock remote branch %s\n",
aa1dbc98 2367 ref->name);
58e60dd2
NH
2368 rc = 1;
2369 continue;
2370 }
2371
aa1dbc98 2372 /* Set up revision info for this refspec */
8c9e7947 2373 commit_argc = 3;
9befac47 2374 new_sha1_hex = xstrdup(sha1_to_hex(ref->new_sha1));
8c9e7947 2375 old_sha1_hex = NULL;
5241bfe6
NH
2376 commit_argv[1] = "--objects";
2377 commit_argv[2] = new_sha1_hex;
aa1dbc98
NH
2378 if (!push_all && !is_zero_sha1(ref->old_sha1)) {
2379 old_sha1_hex = xmalloc(42);
2380 sprintf(old_sha1_hex, "^%s",
2381 sha1_to_hex(ref->old_sha1));
5241bfe6 2382 commit_argv[3] = old_sha1_hex;
aa1dbc98 2383 commit_argc++;
58e60dd2 2384 }
db6296a5 2385 init_revisions(&revs, setup_git_directory());
aa1dbc98 2386 setup_revisions(commit_argc, commit_argv, &revs, NULL);
d633c882 2387 revs.edge_hint = 0; /* just in case */
aa1dbc98
NH
2388 free(new_sha1_hex);
2389 if (old_sha1_hex) {
2390 free(old_sha1_hex);
2391 commit_argv[1] = NULL;
58e60dd2
NH
2392 }
2393
aa1dbc98 2394 /* Generate a list of objects that need to be pushed */
58e60dd2 2395 pushing = 0;
3d51e1b5
MK
2396 if (prepare_revision_walk(&revs))
2397 die("revision walk setup failed");
d633c882 2398 mark_edges_uninteresting(revs.commits, &revs, NULL);
1a703cba 2399 objects_to_send = get_delta(&revs, ref_lock);
29508e1e 2400 finish_all_active_slots();
58e60dd2
NH
2401
2402 /* Push missing objects to remote, this would be a
2403 convenient time to pack them first if appropriate. */
2404 pushing = 1;
1a703cba
NH
2405 if (objects_to_send)
2406 fprintf(stderr, " sending %d objects\n",
2407 objects_to_send);
b3ca4e4e 2408#ifdef USE_CURL_MULTI
29508e1e 2409 fill_active_slots();
fc57b6aa 2410 add_fill_function(NULL, fill_active_slot);
b3ca4e4e 2411#endif
add8e8ce
JS
2412 do {
2413 finish_all_active_slots();
2414#ifdef USE_CURL_MULTI
2415 fill_active_slots();
2416#endif
2417 } while (request_queue_head && !aborted);
58e60dd2
NH
2418
2419 /* Update the remote branch if all went well */
7fea9c55 2420 if (aborted || !update_remote(ref->new_sha1, ref_lock))
aa1dbc98 2421 rc = 1;
58e60dd2 2422
aa1dbc98
NH
2423 if (!rc)
2424 fprintf(stderr, " done\n");
2425 unlock_remote(ref_lock);
512d632c 2426 check_locks();
58e60dd2
NH
2427 }
2428
197e8951
NH
2429 /* Update remote server info if appropriate */
2430 if (remote->has_info_refs && new_refs) {
2431 if (info_ref_lock && remote->can_update_info_refs) {
2432 fprintf(stderr, "Updating remote server info\n");
fe5d1d3e
SP
2433 if (!dry_run)
2434 update_remote_info_refs(info_ref_lock);
197e8951
NH
2435 } else {
2436 fprintf(stderr, "Unable to update server info\n");
2437 }
2438 }
197e8951 2439
58e60dd2 2440 cleanup:
8e0f7003 2441 free(rewritten_url);
9116de59
GB
2442 if (info_ref_lock)
2443 unlock_remote(info_ref_lock);
58e60dd2
NH
2444 free(remote);
2445
2446 curl_slist_free_all(no_pragma_header);
58e60dd2 2447
29508e1e 2448 http_cleanup();
58e60dd2
NH
2449
2450 request = request_queue_head;
2451 while (request != NULL) {
2452 next_request = request->next;
2453 release_request(request);
58e60dd2
NH
2454 request = next_request;
2455 }
2456
58e60dd2
NH
2457 return rc;
2458}