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Use strbuf in http code
[thirdparty/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"
29508e1e 12
bee8e79d 13#include <expat.h>
58e60dd2
NH		 14
15static const char http_push_usage[] =
fe5d1d3e 16"git-http-push [--all] [--dry-run] [--force] [--verbose] <remote> [<head>...]\n";
58e60dd2 17
92e2eb9c
JS		 18#ifndef XML_STATUS_OK
19enum XML_Status {
20 XML_STATUS_OK = 1,
21 XML_STATUS_ERROR = 0
22};
23#define XML_STATUS_OK 1
24#define XML_STATUS_ERROR 0
25#endif
26
197e8951 27#define PREV_BUF_SIZE 4096
58e60dd2
NH		 28#define RANGE_HEADER_SIZE 30
29
acf59575 30/* DAV methods */
58e60dd2
NH		 31#define DAV_LOCK "LOCK"
32#define DAV_MKCOL "MKCOL"
33#define DAV_MOVE "MOVE"
34#define DAV_PROPFIND "PROPFIND"
35#define DAV_PUT "PUT"
36#define DAV_UNLOCK "UNLOCK"
3dfaf7bc 37#define DAV_DELETE "DELETE"
acf59575
NH		 38
39/* DAV lock flags */
40#define DAV_PROP_LOCKWR (1u << 0)
41#define DAV_PROP_LOCKEX (1u << 1)
42#define DAV_LOCK_OK (1u << 2)
43
44/* DAV XML properties */
45#define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry"
46#define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write"
47#define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive"
48#define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href"
49#define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout"
50#define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href"
aa1dbc98
NH		 51#define DAV_PROPFIND_RESP ".multistatus.response"
52#define DAV_PROPFIND_NAME ".multistatus.response.href"
53#define DAV_PROPFIND_COLLECTION ".multistatus.response.propstat.prop.resourcetype.collection"
acf59575
NH		 54
55/* DAV request body templates */
aa1dbc98
NH		 56#define PROPFIND_SUPPORTEDLOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:prop xmlns:R=\"%s\">\n<D:supportedlock/>\n</D:prop>\n</D:propfind>"
57#define PROPFIND_ALL_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:allprop/>\n</D:propfind>"
58e60dd2
NH		 58#define LOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:lockinfo xmlns:D=\"DAV:\">\n<D:lockscope><D:exclusive/></D:lockscope>\n<D:locktype><D:write/></D:locktype>\n<D:owner>\n<D:href>mailto:%s</D:href>\n</D:owner>\n</D:lockinfo>"
59
75187c9d
NH		 60#define LOCK_TIME 600
61#define LOCK_REFRESH 30
62
1b65a5aa 63/* bits #0-15 in revision.h */
aa1dbc98 64
1b65a5aa
JH		 65#define LOCAL (1u<<16)
66#define REMOTE (1u<<17)
67#define FETCHING (1u<<18)
68#define PUSHING (1u<<19)
aa1dbc98 69
3dfaf7bc
NH		 70/* We allow "recursive" symbolic refs. Only within reason, though */
71#define MAXDEPTH 5
72
96f1e58f
DR		 73static int pushing;
74static int aborted;
a3c57c9a 75static signed char remote_dir_exists[256];
58e60dd2 76
58e60dd2 77static struct curl_slist *no_pragma_header;
58e60dd2 78
96f1e58f 79static int push_verbosely;
28b9d6e5 80static int push_all = MATCH_REFS_NONE;
96f1e58f 81static int force_all;
fe5d1d3e 82static int dry_run;
58e60dd2 83
96f1e58f 84static struct object_list *objects;
aa1dbc98 85
58e60dd2
NH		 86struct repo
87{
88 char *url;
aa1dbc98 89 int path_len;
197e8951
NH		 90 int has_info_refs;
91 int can_update_info_refs;
92 int has_info_packs;
58e60dd2 93 struct packed_git *packs;
512d632c 94 struct remote_lock *locks;
58e60dd2
NH		 95};
96
96f1e58f 97static struct repo *remote;
58e60dd2
NH		 98
99enum transfer_state {
197e8951
NH		 100 NEED_FETCH,
101 RUN_FETCH_LOOSE,
102 RUN_FETCH_PACKED,
58e60dd2
NH		 103 NEED_PUSH,
104 RUN_MKCOL,
105 RUN_PUT,
106 RUN_MOVE,
107 ABORTED,
108 COMPLETE,
109};
110
111struct transfer_request
112{
aa1dbc98 113 struct object *obj;
58e60dd2
NH		 114 char *url;
115 char *dest;
aa1dbc98 116 struct remote_lock *lock;
58e60dd2
NH		 117 struct curl_slist *headers;
118 struct buffer buffer;
119 char filename[PATH_MAX];
120 char tmpfile[PATH_MAX];
197e8951
NH		 121 int local_fileno;
122 FILE *local_stream;
58e60dd2
NH		 123 enum transfer_state state;
124 CURLcode curl_result;
125 char errorstr[CURL_ERROR_SIZE];
126 long http_code;
127 unsigned char real_sha1[20];
128 SHA_CTX c;
129 z_stream stream;
130 int zret;
131 int rename;
197e8951 132 void *userData;
58e60dd2
NH		 133 struct active_request_slot *slot;
134 struct transfer_request *next;
135};
136
96f1e58f 137static struct transfer_request *request_queue_head;
58e60dd2 138
acf59575
NH		 139struct xml_ctx
140{
141 char *name;
142 int len;
143 char *cdata;
144 void (*userFunc)(struct xml_ctx *ctx, int tag_closed);
145 void *userData;
146};
147
aa1dbc98 148struct remote_lock
26349b2e 149{
75187c9d 150 char *url;
26349b2e 151 char *owner;
75187c9d 152 char *token;
26349b2e
NH		 153 time_t start_time;
154 long timeout;
75187c9d 155 int refreshing;
aa1dbc98
NH		 156 struct remote_lock *next;
157};
158
3030baa7
NH		 159/* Flags that control remote_ls processing */
160#define PROCESS_FILES (1u << 0)
161#define PROCESS_DIRS (1u << 1)
162#define RECURSIVE (1u << 2)
163
164/* Flags that remote_ls passes to callback functions */
165#define IS_DIR (1u << 0)
166
167struct remote_ls_ctx
aa1dbc98 168{
3030baa7
NH		 169 char *path;
170 void (*userFunc)(struct remote_ls_ctx *ls);
171 void *userData;
172 int flags;
173 char *dentry_name;
174 int dentry_flags;
175 struct remote_ls_ctx *parent;
26349b2e
NH		 176};
177
29508e1e 178static void finish_request(struct transfer_request *request);
197e8951 179static void release_request(struct transfer_request *request);
58e60dd2 180
29508e1e 181static void process_response(void *callback_data)
58e60dd2 182{
29508e1e
NH		 183 struct transfer_request *request =
184 (struct transfer_request *)callback_data;
58e60dd2 185
29508e1e 186 finish_request(request);
58e60dd2
NH		 187}
188
dd8239f9 189#ifdef USE_CURL_MULTI
197e8951
NH		 190static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
191 void *data)
192{
193 unsigned char expn[4096];
194 size_t size = eltsize * nmemb;
195 int posn = 0;
196 struct transfer_request *request = (struct transfer_request *)data;
197 do {
93822c22 198 ssize_t retval = xwrite(request->local_fileno,
1d7f171c 199 (char *) ptr + posn, size - posn);
197e8951
NH		 200 if (retval < 0)
201 return posn;
202 posn += retval;
203 } while (posn < size);
204
205 request->stream.avail_in = size;
206 request->stream.next_in = ptr;
207 do {
208 request->stream.next_out = expn;
209 request->stream.avail_out = sizeof(expn);
210 request->zret = inflate(&request->stream, Z_SYNC_FLUSH);
211 SHA1_Update(&request->c, expn,
212 sizeof(expn) - request->stream.avail_out);
213 } while (request->stream.avail_in && request->zret == Z_OK);
214 data_received++;
215 return size;
216}
217
218static void start_fetch_loose(struct transfer_request *request)
219{
220 char *hex = sha1_to_hex(request->obj->sha1);
221 char *filename;
222 char prevfile[PATH_MAX];
223 char *url;
224 char *posn;
225 int prevlocal;
226 unsigned char prev_buf[PREV_BUF_SIZE];
227 ssize_t prev_read = 0;
228 long prev_posn = 0;
229 char range[RANGE_HEADER_SIZE];
230 struct curl_slist *range_header = NULL;
231 struct active_request_slot *slot;
232
233 filename = sha1_file_name(request->obj->sha1);
234 snprintf(request->filename, sizeof(request->filename), "%s", filename);
235 snprintf(request->tmpfile, sizeof(request->tmpfile),
236 "%s.temp", filename);
237
238 snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename);
239 unlink(prevfile);
240 rename(request->tmpfile, prevfile);
241 unlink(request->tmpfile);
242
243 if (request->local_fileno != -1)
244 error("fd leakage in start: %d", request->local_fileno);
245 request->local_fileno = open(request->tmpfile,
246 O_WRONLY | O_CREAT | O_EXCL, 0666);
247 /* This could have failed due to the "lazy directory creation";
248 * try to mkdir the last path component.
249 */
250 if (request->local_fileno < 0 && errno == ENOENT) {
251 char *dir = strrchr(request->tmpfile, '/');
252 if (dir) {
253 *dir = 0;
254 mkdir(request->tmpfile, 0777);
255 *dir = '/';
256 }
257 request->local_fileno = open(request->tmpfile,
258 O_WRONLY | O_CREAT | O_EXCL, 0666);
259 }
260
261 if (request->local_fileno < 0) {
262 request->state = ABORTED;
263 error("Couldn't create temporary file %s for %s: %s",
264 request->tmpfile, request->filename, strerror(errno));
265 return;
266 }
267
268 memset(&request->stream, 0, sizeof(request->stream));
269
270 inflateInit(&request->stream);
271
272 SHA1_Init(&request->c);
273
274 url = xmalloc(strlen(remote->url) + 50);
275 request->url = xmalloc(strlen(remote->url) + 50);
276 strcpy(url, remote->url);
277 posn = url + strlen(remote->url);
278 strcpy(posn, "objects/");
279 posn += 8;
280 memcpy(posn, hex, 2);
281 posn += 2;
282 *(posn++) = '/';
283 strcpy(posn, hex + 2);
284 strcpy(request->url, url);
285
286 /* If a previous temp file is present, process what was already
287 fetched. */
288 prevlocal = open(prevfile, O_RDONLY);
289 if (prevlocal != -1) {
290 do {
93d26e4c 291 prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
197e8951
NH		 292 if (prev_read>0) {
293 if (fwrite_sha1_file(prev_buf,
294 1,
295 prev_read,
296 request) == prev_read) {
297 prev_posn += prev_read;
298 } else {
299 prev_read = -1;
300 }
301 }
302 } while (prev_read > 0);
303 close(prevlocal);
304 }
305 unlink(prevfile);
306
307 /* Reset inflate/SHA1 if there was an error reading the previous temp
308 file; also rewind to the beginning of the local file. */
309 if (prev_read == -1) {
310 memset(&request->stream, 0, sizeof(request->stream));
311 inflateInit(&request->stream);
312 SHA1_Init(&request->c);
313 if (prev_posn>0) {
314 prev_posn = 0;
b5da2467 315 lseek(request->local_fileno, 0, SEEK_SET);
197e8951
NH		 316 ftruncate(request->local_fileno, 0);
317 }
318 }
319
320 slot = get_active_slot();
321 slot->callback_func = process_response;
322 slot->callback_data = request;
323 request->slot = slot;
324
325 curl_easy_setopt(slot->curl, CURLOPT_FILE, request);
326 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
327 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
328 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
329 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
330
331 /* If we have successfully processed data from a previous fetch
332 attempt, only fetch the data we don't already have. */
333 if (prev_posn>0) {
334 if (push_verbosely)
335 fprintf(stderr,
336 "Resuming fetch of object %s at byte %ld\n",
337 hex, prev_posn);
338 sprintf(range, "Range: bytes=%ld-", prev_posn);
339 range_header = curl_slist_append(range_header, range);
340 curl_easy_setopt(slot->curl,
341 CURLOPT_HTTPHEADER, range_header);
342 }
343
344 /* Try to get the request started, abort the request on error */
345 request->state = RUN_FETCH_LOOSE;
346 if (!start_active_slot(slot)) {
347 fprintf(stderr, "Unable to start GET request\n");
348 remote->can_update_info_refs = 0;
349 release_request(request);
350 }
351}
352
dd8239f9
JH		 353static void start_mkcol(struct transfer_request *request)
354{
355 char *hex = sha1_to_hex(request->obj->sha1);
356 struct active_request_slot *slot;
357 char *posn;
358
359 request->url = xmalloc(strlen(remote->url) + 13);
360 strcpy(request->url, remote->url);
361 posn = request->url + strlen(remote->url);
362 strcpy(posn, "objects/");
363 posn += 8;
364 memcpy(posn, hex, 2);
365 posn += 2;
366 strcpy(posn, "/");
367
368 slot = get_active_slot();
369 slot->callback_func = process_response;
370 slot->callback_data = request;
371 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
372 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
373 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
374 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
375 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
376
377 if (start_active_slot(slot)) {
378 request->slot = slot;
379 request->state = RUN_MKCOL;
380 } else {
381 request->state = ABORTED;
382 free(request->url);
383 request->url = NULL;
384 }
385}
386#endif
387
197e8951
NH		 388static void start_fetch_packed(struct transfer_request *request)
389{
390 char *url;
391 struct packed_git *target;
392 FILE *packfile;
393 char *filename;
394 long prev_posn = 0;
395 char range[RANGE_HEADER_SIZE];
396 struct curl_slist *range_header = NULL;
397
398 struct transfer_request *check_request = request_queue_head;
399 struct active_request_slot *slot;
400
401 target = find_sha1_pack(request->obj->sha1, remote->packs);
402 if (!target) {
403 fprintf(stderr, "Unable to fetch %s, will not be able to update server info refs\n", sha1_to_hex(request->obj->sha1));
404 remote->can_update_info_refs = 0;
405 release_request(request);
406 return;
407 }
408
409 fprintf(stderr, "Fetching pack %s\n", sha1_to_hex(target->sha1));
410 fprintf(stderr, " which contains %s\n", sha1_to_hex(request->obj->sha1));
411
412 filename = sha1_pack_name(target->sha1);
413 snprintf(request->filename, sizeof(request->filename), "%s", filename);
414 snprintf(request->tmpfile, sizeof(request->tmpfile),
415 "%s.temp", filename);
416
417 url = xmalloc(strlen(remote->url) + 64);
418 sprintf(url, "%sobjects/pack/pack-%s.pack",
419 remote->url, sha1_to_hex(target->sha1));
420
421 /* Make sure there isn't another open request for this pack */
422 while (check_request) {
423 if (check_request->state == RUN_FETCH_PACKED &&
424 !strcmp(check_request->url, url)) {
425 free(url);
426 release_request(request);
427 return;
428 }
429 check_request = check_request->next;
430 }
431
432 packfile = fopen(request->tmpfile, "a");
433 if (!packfile) {
434 fprintf(stderr, "Unable to open local file %s for pack",
84ef0338 435 request->tmpfile);
197e8951
NH		 436 remote->can_update_info_refs = 0;
437 free(url);
438 return;
439 }
440
441 slot = get_active_slot();
442 slot->callback_func = process_response;
443 slot->callback_data = request;
444 request->slot = slot;
445 request->local_stream = packfile;
446 request->userData = target;
447
448 request->url = url;
449 curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile);
450 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
451 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
452 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
453 slot->local = packfile;
454
455 /* If there is data present from a previous transfer attempt,
456 resume where it left off */
457 prev_posn = ftell(packfile);
458 if (prev_posn>0) {
459 if (push_verbosely)
460 fprintf(stderr,
461 "Resuming fetch of pack %s at byte %ld\n",
462 sha1_to_hex(target->sha1), prev_posn);
463 sprintf(range, "Range: bytes=%ld-", prev_posn);
464 range_header = curl_slist_append(range_header, range);
465 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
466 }
467
468 /* Try to get the request started, abort the request on error */
469 request->state = RUN_FETCH_PACKED;
470 if (!start_active_slot(slot)) {
471 fprintf(stderr, "Unable to start GET request\n");
472 remote->can_update_info_refs = 0;
473 release_request(request);
474 }
475}
476
58e60dd2
NH		 477static void start_put(struct transfer_request *request)
478{
aa1dbc98 479 char *hex = sha1_to_hex(request->obj->sha1);
58e60dd2
NH		 480 struct active_request_slot *slot;
481 char *posn;
21666f1a 482 enum object_type type;
58e60dd2
NH		 483 char hdr[50];
484 void *unpacked;
485 unsigned long len;
486 int hdrlen;
487 ssize_t size;
488 z_stream stream;
489
21666f1a
NP		 490 unpacked = read_sha1_file(request->obj->sha1, &type, &len);
491 hdrlen = sprintf(hdr, "%s %lu", typename(type), len) + 1;
58e60dd2
NH		 492
493 /* Set it up */
494 memset(&stream, 0, sizeof(stream));
12f6c308 495 deflateInit(&stream, zlib_compression_level);
58e60dd2 496 size = deflateBound(&stream, len + hdrlen);
028c2976
MH		 497 strbuf_init(&request->buffer.buf, size);
498 request->buffer.posn = 0;
58e60dd2
NH		 499
500 /* Compress it */
028c2976 501 stream.next_out = (unsigned char *)request->buffer.buf.buf;
58e60dd2
NH		 502 stream.avail_out = size;
503
504 /* First header.. */
505 stream.next_in = (void *)hdr;
506 stream.avail_in = hdrlen;
507 while (deflate(&stream, 0) == Z_OK)
508 /* nothing */;
509
510 /* Then the data itself.. */
511 stream.next_in = unpacked;
512 stream.avail_in = len;
513 while (deflate(&stream, Z_FINISH) == Z_OK)
514 /* nothing */;
515 deflateEnd(&stream);
516 free(unpacked);
517
028c2976 518 request->buffer.buf.len = stream.total_out;
58e60dd2 519
a6080a0a 520 request->url = xmalloc(strlen(remote->url) +
26349b2e 521 strlen(request->lock->token) + 51);
58e60dd2
NH		 522 strcpy(request->url, remote->url);
523 posn = request->url + strlen(remote->url);
524 strcpy(posn, "objects/");
525 posn += 8;
526 memcpy(posn, hex, 2);
527 posn += 2;
528 *(posn++) = '/';
529 strcpy(posn, hex + 2);
530 request->dest = xmalloc(strlen(request->url) + 14);
531 sprintf(request->dest, "Destination: %s", request->url);
532 posn += 38;
1e8d3045 533 *(posn++) = '_';
26349b2e 534 strcpy(posn, request->lock->token);
58e60dd2
NH		 535
536 slot = get_active_slot();
29508e1e
NH		 537 slot->callback_func = process_response;
538 slot->callback_data = request;
58e60dd2 539 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer);
028c2976 540 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.buf.len);
58e60dd2
NH		 541 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
542 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
543 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
544 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
545 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
546 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
547 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
548
549 if (start_active_slot(slot)) {
550 request->slot = slot;
551 request->state = RUN_PUT;
552 } else {
553 request->state = ABORTED;
554 free(request->url);
7b899967 555 request->url = NULL;
58e60dd2
NH		 556 }
557}
558
559static void start_move(struct transfer_request *request)
560{
561 struct active_request_slot *slot;
562 struct curl_slist *dav_headers = NULL;
563
564 slot = get_active_slot();
29508e1e
NH		 565 slot->callback_func = process_response;
566 slot->callback_data = request;
58e60dd2
NH		 567 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
568 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MOVE);
569 dav_headers = curl_slist_append(dav_headers, request->dest);
570 dav_headers = curl_slist_append(dav_headers, "Overwrite: T");
571 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
572 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
573 curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
574
575 if (start_active_slot(slot)) {
576 request->slot = slot;
577 request->state = RUN_MOVE;
578 } else {
579 request->state = ABORTED;
580 free(request->url);
7b899967 581 request->url = NULL;
58e60dd2
NH		 582 }
583}
584
512d632c 585static int refresh_lock(struct remote_lock *lock)
75187c9d
NH		 586{
587 struct active_request_slot *slot;
baa7b67d 588 struct slot_results results;
75187c9d
NH		 589 char *if_header;
590 char timeout_header[25];
591 struct curl_slist *dav_headers = NULL;
512d632c 592 int rc = 0;
75187c9d 593
512d632c 594 lock->refreshing = 1;
75187c9d 595
512d632c
NH		 596 if_header = xmalloc(strlen(lock->token) + 25);
597 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
598 sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout);
599 dav_headers = curl_slist_append(dav_headers, if_header);
600 dav_headers = curl_slist_append(dav_headers, timeout_header);
75187c9d 601
512d632c
NH		 602 slot = get_active_slot();
603 slot->results = &results;
604 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
605 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
606 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
607 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
608 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
75187c9d 609
512d632c
NH		 610 if (start_active_slot(slot)) {
611 run_active_slot(slot);
612 if (results.curl_result != CURLE_OK) {
613 fprintf(stderr, "LOCK HTTP error %ld\n",
614 results.http_code);
615 } else {
616 lock->start_time = time(NULL);
617 rc = 1;
618 }
619 }
aa1dbc98 620
512d632c
NH		 621 lock->refreshing = 0;
622 curl_slist_free_all(dav_headers);
623 free(if_header);
aa1dbc98 624
512d632c
NH		 625 return rc;
626}
627
ec26b4d6 628static void check_locks(void)
512d632c
NH		 629{
630 struct remote_lock *lock = remote->locks;
631 time_t current_time = time(NULL);
632 int time_remaining;
633
634 while (lock) {
635 time_remaining = lock->start_time + lock->timeout -
636 current_time;
637 if (!lock->refreshing && time_remaining < LOCK_REFRESH) {
638 if (!refresh_lock(lock)) {
639 fprintf(stderr,
640 "Unable to refresh lock for %s\n",
641 lock->url);
642 aborted = 1;
643 return;
aa1dbc98 644 }
75187c9d 645 }
512d632c 646 lock = lock->next;
75187c9d 647 }
aa1dbc98 648}
75187c9d 649
aa1dbc98
NH		 650static void release_request(struct transfer_request *request)
651{
652 struct transfer_request *entry = request_queue_head;
653
654 if (request == request_queue_head) {
655 request_queue_head = request->next;
656 } else {
657 while (entry->next != NULL && entry->next != request)
658 entry = entry->next;
659 if (entry->next == request)
660 entry->next = entry->next->next;
661 }
662
197e8951
NH		 663 if (request->local_fileno != -1)
664 close(request->local_fileno);
665 if (request->local_stream)
666 fclose(request->local_stream);
aa1dbc98
NH		 667 if (request->url != NULL)
668 free(request->url);
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);
745 SHA1_Final(request->real_sha1, &request->c);
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
786 if (!verify_pack(target, 0))
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
1070static inline int needs_quote(int ch)
1071{
cfd432e6
FF		 1072 if (((ch >= 'A') && (ch <= 'Z'))
1073 || ((ch >= 'a') && (ch <= 'z'))
1074 || ((ch >= '0') && (ch <= '9'))
1075 || (ch == '/')
1076 || (ch == '-')
1077 || (ch == '.'))
58e60dd2 1078 return 0;
cfd432e6 1079 return 1;
58e60dd2
NH		 1080}
1081
1082static inline int hex(int v)
1083{
1084 if (v < 10) return '0' + v;
1085 else return 'A' + v - 10;
1086}
1087
1088static char *quote_ref_url(const char *base, const char *ref)
1089{
1090 const char *cp;
1091 char *dp, *qref;
1092 int len, baselen, ch;
1093
1094 baselen = strlen(base);
aa1dbc98 1095 len = baselen + 1;
58e60dd2
NH		 1096 for (cp = ref; (ch = *cp) != 0; cp++, len++)
1097 if (needs_quote(ch))
1098 len += 2; /* extra two hex plus replacement % */
1099 qref = xmalloc(len);
1100 memcpy(qref, base, baselen);
aa1dbc98 1101 for (cp = ref, dp = qref + baselen; (ch = *cp) != 0; cp++) {
58e60dd2
NH		 1102 if (needs_quote(ch)) {
1103 *dp++ = '%';
1104 *dp++ = hex((ch >> 4) & 0xF);
1105 *dp++ = hex(ch & 0xF);
1106 }
1107 else
1108 *dp++ = ch;
1109 }
1110 *dp = 0;
1111
1112 return qref;
1113}
1114
1115int fetch_ref(char *ref, unsigned char *sha1)
1116{
028c2976
MH		 1117 char *url;
1118 struct strbuf buffer = STRBUF_INIT;
58e60dd2
NH		 1119 char *base = remote->url;
1120 struct active_request_slot *slot;
baa7b67d 1121 struct slot_results results;
baa7b67d 1122
58e60dd2
NH		 1123 url = quote_ref_url(base, ref);
1124 slot = get_active_slot();
baa7b67d 1125 slot->results = &results;
58e60dd2 1126 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
29508e1e 1127 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
58e60dd2
NH		 1128 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
1129 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1130 if (start_active_slot(slot)) {
1131 run_active_slot(slot);
3b683b91 1132 free(url);
baa7b67d 1133 if (results.curl_result != CURLE_OK)
58e60dd2
NH		 1134 return error("Couldn't get %s for %s\n%s",
1135 url, ref, curl_errorstr);
1136 } else {
3b683b91 1137 free(url);
58e60dd2
NH		 1138 return error("Unable to start request");
1139 }
1140
028c2976
MH		 1141 strbuf_rtrim(&buffer);
1142 if (buffer.len != 40)
a096bb18 1143 return 1;
028c2976 1144 return get_sha1_hex(buffer.buf, sha1);
58e60dd2
NH		 1145}
1146
aa1dbc98
NH		 1147static void one_remote_object(const char *hex)
1148{
1149 unsigned char sha1[20];
1150 struct object *obj;
1151
1152 if (get_sha1_hex(hex, sha1) != 0)
1153 return;
1154
1155 obj = lookup_object(sha1);
1156 if (!obj)
1157 obj = parse_object(sha1);
1158
1159 /* Ignore remote objects that don't exist locally */
1160 if (!obj)
1161 return;
1162
1163 obj->flags |= REMOTE;
1164 if (!object_list_contains(objects, obj))
1f1e895f 1165 object_list_insert(obj, &objects);
aa1dbc98
NH		 1166}
1167
acf59575 1168static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
26349b2e 1169{
acf59575
NH		 1170 int *lock_flags = (int *)ctx->userData;
1171
1172 if (tag_closed) {
1173 if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) {
1174 if ((*lock_flags & DAV_PROP_LOCKEX) &&
1175 (*lock_flags & DAV_PROP_LOCKWR)) {
1176 *lock_flags |= DAV_LOCK_OK;
1177 }
1178 *lock_flags &= DAV_LOCK_OK;
1179 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) {
1180 *lock_flags |= DAV_PROP_LOCKWR;
1181 } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) {
1182 *lock_flags |= DAV_PROP_LOCKEX;
1183 }
1184 }
26349b2e
NH		 1185}
1186
acf59575 1187static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
26349b2e 1188{
aa1dbc98 1189 struct remote_lock *lock = (struct remote_lock *)ctx->userData;
acf59575
NH		 1190
1191 if (tag_closed && ctx->cdata) {
1192 if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
1193 lock->owner = xmalloc(strlen(ctx->cdata) + 1);
1194 strcpy(lock->owner, ctx->cdata);
1195 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) {
cc44c765 1196 if (!prefixcmp(ctx->cdata, "Second-"))
acf59575
NH		 1197 lock->timeout =
1198 strtol(ctx->cdata + 7, NULL, 10);
1199 } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
cc44c765 1200 if (!prefixcmp(ctx->cdata, "opaquelocktoken:")) {
3e2f62be 1201 lock->token = xmalloc(strlen(ctx->cdata) - 15);
acf59575
NH		 1202 strcpy(lock->token, ctx->cdata + 16);
1203 }
1204 }
26349b2e
NH		 1205 }
1206}
1207
aa1dbc98 1208static void one_remote_ref(char *refname);
aa1dbc98 1209
26349b2e 1210static void
acf59575 1211xml_start_tag(void *userData, const char *name, const char **atts)
26349b2e 1212{
acf59575 1213 struct xml_ctx *ctx = (struct xml_ctx *)userData;
ef9e58c8 1214 const char *c = strchr(name, ':');
acf59575
NH		 1215 int new_len;
1216
1217 if (c == NULL)
1218 c = name;
1219 else
1220 c++;
1221
1222 new_len = strlen(ctx->name) + strlen(c) + 2;
1223
1224 if (new_len > ctx->len) {
1225 ctx->name = xrealloc(ctx->name, new_len);
1226 ctx->len = new_len;
26349b2e 1227 }
acf59575
NH		 1228 strcat(ctx->name, ".");
1229 strcat(ctx->name, c);
26349b2e 1230
4cac42b1
JH		 1231 free(ctx->cdata);
1232 ctx->cdata = NULL;
acf59575
NH		 1233
1234 ctx->userFunc(ctx, 0);
26349b2e
NH		 1235}
1236
58e60dd2 1237static void
acf59575 1238xml_end_tag(void *userData, const char *name)
58e60dd2 1239{
acf59575 1240 struct xml_ctx *ctx = (struct xml_ctx *)userData;
ef9e58c8 1241 const char *c = strchr(name, ':');
acf59575 1242 char *ep;
58e60dd2 1243
acf59575
NH		 1244 ctx->userFunc(ctx, 1);
1245
1246 if (c == NULL)
1247 c = name;
1248 else
1249 c++;
1250
1251 ep = ctx->name + strlen(ctx->name) - strlen(c) - 1;
1252 *ep = 0;
58e60dd2
NH		 1253}
1254
1255static void
acf59575 1256xml_cdata(void *userData, const XML_Char *s, int len)
58e60dd2 1257{
acf59575 1258 struct xml_ctx *ctx = (struct xml_ctx *)userData;
4cac42b1 1259 free(ctx->cdata);
182af834 1260 ctx->cdata = xmemdupz(s, len);
58e60dd2
NH		 1261}
1262
554fe20d 1263static struct remote_lock *lock_remote(const char *path, long timeout)
58e60dd2
NH		 1264{
1265 struct active_request_slot *slot;
baa7b67d 1266 struct slot_results results;
028c2976
MH		 1267 struct buffer out_buffer = { STRBUF_INIT, 0 };
1268 struct strbuf in_buffer = STRBUF_INIT;
58e60dd2 1269 char *url;
0772b9a6 1270 char *ep;
58e60dd2 1271 char timeout_header[25];
512d632c 1272 struct remote_lock *lock = NULL;
58e60dd2 1273 struct curl_slist *dav_headers = NULL;
acf59575 1274 struct xml_ctx ctx;
58e60dd2 1275
aa1dbc98
NH		 1276 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
1277 sprintf(url, "%s%s", remote->url, path);
1278
0772b9a6 1279 /* Make sure leading directories exist for the remote ref */
2c46759d 1280 ep = strchr(url + strlen(remote->url) + 1, '/');
0772b9a6
NH		 1281 while (ep) {
1282 *ep = 0;
1283 slot = get_active_slot();
baa7b67d 1284 slot->results = &results;
0772b9a6
NH		 1285 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
1286 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1287 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
1288 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1289 if (start_active_slot(slot)) {
1290 run_active_slot(slot);
baa7b67d
NH		 1291 if (results.curl_result != CURLE_OK &&
1292 results.http_code != 405) {
0772b9a6
NH		 1293 fprintf(stderr,
1294 "Unable to create branch path %s\n",
1295 url);
1296 free(url);
1297 return NULL;
1298 }
1299 } else {
1a703cba 1300 fprintf(stderr, "Unable to start MKCOL request\n");
0772b9a6
NH		 1301 free(url);
1302 return NULL;
1303 }
1304 *ep = '/';
1305 ep = strchr(ep + 1, '/');
1306 }
1307
028c2976 1308 strbuf_addf(&out_buffer.buf, LOCK_REQUEST, git_default_email);
26349b2e 1309
75187c9d 1310 sprintf(timeout_header, "Timeout: Second-%ld", timeout);
58e60dd2
NH		 1311 dav_headers = curl_slist_append(dav_headers, timeout_header);
1312 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1313
1314 slot = get_active_slot();
baa7b67d 1315 slot->results = &results;
58e60dd2 1316 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1317 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
58e60dd2 1318 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
26349b2e 1319 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
29508e1e 1320 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
58e60dd2
NH		 1321 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1322 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1323 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
1324 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1325
aa1dbc98 1326 lock = xcalloc(1, sizeof(*lock));
aa1dbc98 1327 lock->timeout = -1;
acf59575 1328
58e60dd2
NH		 1329 if (start_active_slot(slot)) {
1330 run_active_slot(slot);
baa7b67d 1331 if (results.curl_result == CURLE_OK) {
472b2570
MH		 1332 XML_Parser parser = XML_ParserCreate(NULL);
1333 enum XML_Status result;
acf59575
NH		 1334 ctx.name = xcalloc(10, 1);
1335 ctx.len = 0;
1336 ctx.cdata = NULL;
1337 ctx.userFunc = handle_new_lock_ctx;
aa1dbc98 1338 ctx.userData = lock;
acf59575
NH		 1339 XML_SetUserData(parser, &ctx);
1340 XML_SetElementHandler(parser, xml_start_tag,
1341 xml_end_tag);
1342 XML_SetCharacterDataHandler(parser, xml_cdata);
028c2976
MH		 1343 result = XML_Parse(parser, in_buffer.buf,
1344 in_buffer.len, 1);
acf59575
NH		 1345 free(ctx.name);
1346 if (result != XML_STATUS_OK) {
1347 fprintf(stderr, "XML error: %s\n",
1348 XML_ErrorString(
1349 XML_GetErrorCode(parser)));
aa1dbc98 1350 lock->timeout = -1;
acf59575 1351 }
472b2570 1352 XML_ParserFree(parser);
58e60dd2
NH		 1353 }
1354 } else {
1a703cba 1355 fprintf(stderr, "Unable to start LOCK request\n");
58e60dd2
NH		 1356 }
1357
acf59575 1358 curl_slist_free_all(dav_headers);
028c2976
MH		 1359 strbuf_release(&out_buffer.buf);
1360 strbuf_release(&in_buffer);
26349b2e 1361
aa1dbc98
NH		 1362 if (lock->token == NULL || lock->timeout <= 0) {
1363 if (lock->token != NULL)
1364 free(lock->token);
1365 if (lock->owner != NULL)
1366 free(lock->owner);
75187c9d 1367 free(url);
aa1dbc98
NH		 1368 free(lock);
1369 lock = NULL;
acf59575 1370 } else {
aa1dbc98 1371 lock->url = url;
aa1dbc98 1372 lock->start_time = time(NULL);
512d632c
NH		 1373 lock->next = remote->locks;
1374 remote->locks = lock;
26349b2e
NH		 1375 }
1376
aa1dbc98 1377 return lock;
58e60dd2
NH		 1378}
1379
aa1dbc98 1380static int unlock_remote(struct remote_lock *lock)
58e60dd2
NH		 1381{
1382 struct active_request_slot *slot;
baa7b67d 1383 struct slot_results results;
512d632c 1384 struct remote_lock *prev = remote->locks;
58e60dd2
NH		 1385 char *lock_token_header;
1386 struct curl_slist *dav_headers = NULL;
1387 int rc = 0;
1388
26349b2e 1389 lock_token_header = xmalloc(strlen(lock->token) + 31);
58e60dd2 1390 sprintf(lock_token_header, "Lock-Token: <opaquelocktoken:%s>",
26349b2e 1391 lock->token);
58e60dd2
NH		 1392 dav_headers = curl_slist_append(dav_headers, lock_token_header);
1393
1394 slot = get_active_slot();
baa7b67d 1395 slot->results = &results;
58e60dd2 1396 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
75187c9d 1397 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
58e60dd2
NH		 1398 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK);
1399 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1400
1401 if (start_active_slot(slot)) {
1402 run_active_slot(slot);
baa7b67d 1403 if (results.curl_result == CURLE_OK)
58e60dd2
NH		 1404 rc = 1;
1405 else
512d632c 1406 fprintf(stderr, "UNLOCK HTTP error %ld\n",
baa7b67d 1407 results.http_code);
58e60dd2 1408 } else {
512d632c 1409 fprintf(stderr, "Unable to start UNLOCK request\n");
58e60dd2
NH		 1410 }
1411
1412 curl_slist_free_all(dav_headers);
1413 free(lock_token_header);
75187c9d 1414
512d632c
NH		 1415 if (remote->locks == lock) {
1416 remote->locks = lock->next;
1417 } else {
1418 while (prev && prev->next != lock)
1419 prev = prev->next;
1420 if (prev)
1421 prev->next = prev->next->next;
1422 }
1423
1424 if (lock->owner != NULL)
1425 free(lock->owner);
1426 free(lock->url);
1427 free(lock->token);
1428 free(lock);
58e60dd2
NH		 1429
1430 return rc;
1431}
1432
3030baa7
NH		 1433static void remote_ls(const char *path, int flags,
1434 void (*userFunc)(struct remote_ls_ctx *ls),
1435 void *userData);
aa1dbc98 1436
3030baa7
NH		 1437static void process_ls_object(struct remote_ls_ctx *ls)
1438{
1439 unsigned int *parent = (unsigned int *)ls->userData;
1440 char *path = ls->dentry_name;
1441 char *obj_hex;
aa1dbc98 1442
3030baa7
NH		 1443 if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) {
1444 remote_dir_exists[*parent] = 1;
1445 return;
1446 }
aa1dbc98 1447
3030baa7
NH		 1448 if (strlen(path) != 49)
1449 return;
1450 path += 8;
1451 obj_hex = xmalloc(strlen(path));
eecc8367
ER		 1452 /* NB: path is not null-terminated, can not use strlcpy here */
1453 memcpy(obj_hex, path, 2);
3030baa7
NH		 1454 strcpy(obj_hex + 2, path + 3);
1455 one_remote_object(obj_hex);
1456 free(obj_hex);
1457}
aa1dbc98 1458
3030baa7
NH		 1459static void process_ls_ref(struct remote_ls_ctx *ls)
1460{
1461 if (!strcmp(ls->path, ls->dentry_name) && (ls->dentry_flags & IS_DIR)) {
1462 fprintf(stderr, " %s\n", ls->dentry_name);
1463 return;
1464 }
aa1dbc98 1465
3030baa7
NH		 1466 if (!(ls->dentry_flags & IS_DIR))
1467 one_remote_ref(ls->dentry_name);
1468}
aa1dbc98 1469
3030baa7
NH		 1470static void handle_remote_ls_ctx(struct xml_ctx *ctx, int tag_closed)
1471{
1472 struct remote_ls_ctx *ls = (struct remote_ls_ctx *)ctx->userData;
aa1dbc98 1473
3030baa7
NH		 1474 if (tag_closed) {
1475 if (!strcmp(ctx->name, DAV_PROPFIND_RESP) && ls->dentry_name) {
1476 if (ls->dentry_flags & IS_DIR) {
1477 if (ls->flags & PROCESS_DIRS) {
1478 ls->userFunc(ls);
1479 }
1480 if (strcmp(ls->dentry_name, ls->path) &&
1481 ls->flags & RECURSIVE) {
1482 remote_ls(ls->dentry_name,
1483 ls->flags,
1484 ls->userFunc,
1485 ls->userData);
1486 }
1487 } else if (ls->flags & PROCESS_FILES) {
1488 ls->userFunc(ls);
aa1dbc98 1489 }
3030baa7
NH		 1490 } else if (!strcmp(ctx->name, DAV_PROPFIND_NAME) && ctx->cdata) {
1491 ls->dentry_name = xmalloc(strlen(ctx->cdata) -
1492 remote->path_len + 1);
1493 strcpy(ls->dentry_name, ctx->cdata + remote->path_len);
1494 } else if (!strcmp(ctx->name, DAV_PROPFIND_COLLECTION)) {
1495 ls->dentry_flags |= IS_DIR;
aa1dbc98 1496 }
3030baa7 1497 } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
4cac42b1 1498 free(ls->dentry_name);
3030baa7
NH		 1499 ls->dentry_name = NULL;
1500 ls->dentry_flags = 0;
aa1dbc98 1501 }
aa1dbc98
NH		 1502}
1503
3030baa7
NH		 1504static void remote_ls(const char *path, int flags,
1505 void (*userFunc)(struct remote_ls_ctx *ls),
1506 void *userData)
aa1dbc98 1507{
3030baa7 1508 char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
aa1dbc98 1509 struct active_request_slot *slot;
baa7b67d 1510 struct slot_results results;
028c2976
MH		 1511 struct strbuf in_buffer = STRBUF_INIT;
1512 struct buffer out_buffer = { STRBUF_INIT, 0 };
aa1dbc98
NH		 1513 struct curl_slist *dav_headers = NULL;
1514 struct xml_ctx ctx;
3030baa7
NH		 1515 struct remote_ls_ctx ls;
1516
1517 ls.flags = flags;
9befac47 1518 ls.path = xstrdup(path);
3030baa7
NH		 1519 ls.dentry_name = NULL;
1520 ls.dentry_flags = 0;
1521 ls.userData = userData;
1522 ls.userFunc = userFunc;
aa1dbc98 1523
aa1dbc98
NH		 1524 sprintf(url, "%s%s", remote->url, path);
1525
028c2976 1526 strbuf_addf(&out_buffer.buf, PROPFIND_ALL_REQUEST);
aa1dbc98
NH		 1527
1528 dav_headers = curl_slist_append(dav_headers, "Depth: 1");
1529 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
1530
1531 slot = get_active_slot();
baa7b67d 1532 slot->results = &results;
aa1dbc98 1533 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1534 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
aa1dbc98
NH		 1535 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1536 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
1537 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
1538 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
1539 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1540 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1541 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1542
1543 if (start_active_slot(slot)) {
1544 run_active_slot(slot);
baa7b67d 1545 if (results.curl_result == CURLE_OK) {
472b2570
MH		 1546 XML_Parser parser = XML_ParserCreate(NULL);
1547 enum XML_Status result;
aa1dbc98
NH		 1548 ctx.name = xcalloc(10, 1);
1549 ctx.len = 0;
1550 ctx.cdata = NULL;
3030baa7
NH		 1551 ctx.userFunc = handle_remote_ls_ctx;
1552 ctx.userData = &ls;
aa1dbc98
NH		 1553 XML_SetUserData(parser, &ctx);
1554 XML_SetElementHandler(parser, xml_start_tag,
1555 xml_end_tag);
1556 XML_SetCharacterDataHandler(parser, xml_cdata);
028c2976
MH		 1557 result = XML_Parse(parser, in_buffer.buf,
1558 in_buffer.len, 1);
aa1dbc98
NH		 1559 free(ctx.name);
1560
1561 if (result != XML_STATUS_OK) {
1562 fprintf(stderr, "XML error: %s\n",
1563 XML_ErrorString(
1564 XML_GetErrorCode(parser)));
1565 }
472b2570 1566 XML_ParserFree(parser);
aa1dbc98
NH		 1567 }
1568 } else {
3030baa7 1569 fprintf(stderr, "Unable to start PROPFIND request\n");
aa1dbc98
NH		 1570 }
1571
3030baa7 1572 free(ls.path);
aa1dbc98 1573 free(url);
028c2976
MH		 1574 strbuf_release(&out_buffer.buf);
1575 strbuf_release(&in_buffer);
aa1dbc98
NH		 1576 curl_slist_free_all(dav_headers);
1577}
1578
3030baa7
NH		 1579static void get_remote_object_list(unsigned char parent)
1580{
1581 char path[] = "objects/XX/";
1582 static const char hex[] = "0123456789abcdef";
1583 unsigned int val = parent;
1584
1585 path[8] = hex[val >> 4];
1586 path[9] = hex[val & 0xf];
1587 remote_dir_exists[val] = 0;
1588 remote_ls(path, (PROCESS_FILES | PROCESS_DIRS),
1589 process_ls_object, &val);
1590}
1591
acf59575 1592static int locking_available(void)
58e60dd2
NH		 1593{
1594 struct active_request_slot *slot;
baa7b67d 1595 struct slot_results results;
028c2976
MH		 1596 struct strbuf in_buffer = STRBUF_INIT;
1597 struct buffer out_buffer = { STRBUF_INIT, 0 };
58e60dd2 1598 struct curl_slist *dav_headers = NULL;
acf59575
NH		 1599 struct xml_ctx ctx;
1600 int lock_flags = 0;
58e60dd2 1601
028c2976 1602 strbuf_addf(&out_buffer.buf, PROPFIND_SUPPORTEDLOCK_REQUEST, remote->url);
58e60dd2
NH		 1603
1604 dav_headers = curl_slist_append(dav_headers, "Depth: 0");
1605 dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml");
baa7b67d 1606
58e60dd2 1607 slot = get_active_slot();
baa7b67d 1608 slot->results = &results;
58e60dd2 1609 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1610 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
58e60dd2
NH		 1611 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1612 curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
29508e1e 1613 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
58e60dd2
NH		 1614 curl_easy_setopt(slot->curl, CURLOPT_URL, remote->url);
1615 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1616 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
1617 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1618
1619 if (start_active_slot(slot)) {
1620 run_active_slot(slot);
baa7b67d 1621 if (results.curl_result == CURLE_OK) {
472b2570
MH		 1622 XML_Parser parser = XML_ParserCreate(NULL);
1623 enum XML_Status result;
acf59575
NH		 1624 ctx.name = xcalloc(10, 1);
1625 ctx.len = 0;
1626 ctx.cdata = NULL;
1627 ctx.userFunc = handle_lockprop_ctx;
1628 ctx.userData = &lock_flags;
1629 XML_SetUserData(parser, &ctx);
1630 XML_SetElementHandler(parser, xml_start_tag,
1631 xml_end_tag);
028c2976
MH		 1632 result = XML_Parse(parser, in_buffer.buf,
1633 in_buffer.len, 1);
acf59575
NH		 1634 free(ctx.name);
1635
1636 if (result != XML_STATUS_OK) {
1637 fprintf(stderr, "XML error: %s\n",
1638 XML_ErrorString(
1639 XML_GetErrorCode(parser)));
1640 lock_flags = 0;
1641 }
472b2570 1642 XML_ParserFree(parser);
58e60dd2 1643 }
58e60dd2 1644 } else {
1a703cba 1645 fprintf(stderr, "Unable to start PROPFIND request\n");
58e60dd2
NH		 1646 }
1647
028c2976
MH		 1648 strbuf_release(&out_buffer.buf);
1649 strbuf_release(&in_buffer);
acf59575
NH		 1650 curl_slist_free_all(dav_headers);
1651
1652 return lock_flags;
58e60dd2
NH		 1653}
1654
b5bf7cd6 1655static struct object_list **add_one_object(struct object *obj, struct object_list **p)
1f1e895f
LT		 1656{
1657 struct object_list *entry = xmalloc(sizeof(struct object_list));
1658 entry->item = obj;
1659 entry->next = *p;
1660 *p = entry;
1661 return &entry->next;
1662}
1663
aa1dbc98
NH		 1664static struct object_list **process_blob(struct blob *blob,
1665 struct object_list **p,
1666 struct name_path *path,
1667 const char *name)
58e60dd2 1668{
aa1dbc98 1669 struct object *obj = &blob->object;
58e60dd2 1670
aa1dbc98
NH		 1671 obj->flags |= LOCAL;
1672
1673 if (obj->flags & (UNINTERESTING | SEEN))
1674 return p;
1675
1676 obj->flags |= SEEN;
1f1e895f 1677 return add_one_object(obj, p);
aa1dbc98
NH		 1678}
1679
1680static struct object_list **process_tree(struct tree *tree,
1681 struct object_list **p,
1682 struct name_path *path,
1683 const char *name)
1684{
1685 struct object *obj = &tree->object;
2d9c58c6 1686 struct tree_desc desc;
4c068a98 1687 struct name_entry entry;
aa1dbc98
NH		 1688 struct name_path me;
1689
1690 obj->flags |= LOCAL;
1691
1692 if (obj->flags & (UNINTERESTING | SEEN))
1693 return p;
1694 if (parse_tree(tree) < 0)
1695 die("bad tree object %s", sha1_to_hex(obj->sha1));
1696
1697 obj->flags |= SEEN;
9befac47 1698 name = xstrdup(name);
1f1e895f 1699 p = add_one_object(obj, p);
aa1dbc98
NH		 1700 me.up = path;
1701 me.elem = name;
1702 me.elem_len = strlen(name);
2d9c58c6 1703
6fda5e51 1704 init_tree_desc(&desc, tree->buffer, tree->size);
2d9c58c6 1705
4c068a98
LT		 1706 while (tree_entry(&desc, &entry)) {
1707 if (S_ISDIR(entry.mode))
1708 p = process_tree(lookup_tree(entry.sha1), p, &me, name);
aa1dbc98 1709 else
4c068a98 1710 p = process_blob(lookup_blob(entry.sha1), p, &me, name);
58e60dd2 1711 }
2d9c58c6
LT		 1712 free(tree->buffer);
1713 tree->buffer = NULL;
aa1dbc98 1714 return p;
58e60dd2
NH		 1715}
1716
1a703cba 1717static int get_delta(struct rev_info *revs, struct remote_lock *lock)
58e60dd2 1718{
1f1e895f 1719 int i;
58e60dd2 1720 struct commit *commit;
1f1e895f 1721 struct object_list **p = &objects;
1a703cba 1722 int count = 0;
58e60dd2 1723
aa1dbc98
NH		 1724 while ((commit = get_revision(revs)) != NULL) {
1725 p = process_tree(commit->tree, p, NULL, "");
1726 commit->object.flags |= LOCAL;
1727 if (!(commit->object.flags & UNINTERESTING))
1a703cba 1728 count += add_send_request(&commit->object, lock);
aa1dbc98 1729 }
58e60dd2 1730
1f1e895f
LT		 1731 for (i = 0; i < revs->pending.nr; i++) {
1732 struct object_array_entry *entry = revs->pending.objects + i;
1733 struct object *obj = entry->item;
1734 const char *name = entry->name;
58e60dd2 1735
aa1dbc98
NH		 1736 if (obj->flags & (UNINTERESTING | SEEN))
1737 continue;
1974632c 1738 if (obj->type == OBJ_TAG) {
aa1dbc98 1739 obj->flags |= SEEN;
1f1e895f 1740 p = add_one_object(obj, p);
aa1dbc98 1741 continue;
58e60dd2 1742 }
1974632c 1743 if (obj->type == OBJ_TREE) {
aa1dbc98
NH		 1744 p = process_tree((struct tree *)obj, p, NULL, name);
1745 continue;
58e60dd2 1746 }
1974632c 1747 if (obj->type == OBJ_BLOB) {
aa1dbc98
NH		 1748 p = process_blob((struct blob *)obj, p, NULL, name);
1749 continue;
58e60dd2 1750 }
aa1dbc98
NH		 1751 die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
1752 }
1753
1754 while (objects) {
1755 if (!(objects->item->flags & UNINTERESTING))
1a703cba 1756 count += add_send_request(objects->item, lock);
aa1dbc98 1757 objects = objects->next;
58e60dd2 1758 }
1a703cba
NH		 1759
1760 return count;
58e60dd2
NH		 1761}
1762
aa1dbc98 1763static int update_remote(unsigned char *sha1, struct remote_lock *lock)
58e60dd2
NH		 1764{
1765 struct active_request_slot *slot;
baa7b67d 1766 struct slot_results results;
58e60dd2 1767 char *if_header;
028c2976 1768 struct buffer out_buffer = { STRBUF_INIT, 0 };
58e60dd2 1769 struct curl_slist *dav_headers = NULL;
58e60dd2 1770
26349b2e
NH		 1771 if_header = xmalloc(strlen(lock->token) + 25);
1772 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
58e60dd2
NH		 1773 dav_headers = curl_slist_append(dav_headers, if_header);
1774
028c2976 1775 strbuf_addf(&out_buffer.buf, "%s\n", sha1_to_hex(sha1));
58e60dd2
NH		 1776
1777 slot = get_active_slot();
baa7b67d 1778 slot->results = &results;
58e60dd2 1779 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
028c2976 1780 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
58e60dd2
NH		 1781 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
1782 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
1783 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
1784 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
1785 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
1786 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
75187c9d 1787 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
58e60dd2
NH		 1788
1789 if (start_active_slot(slot)) {
1790 run_active_slot(slot);
028c2976 1791 strbuf_release(&out_buffer.buf);
58e60dd2 1792 free(if_header);
baa7b67d 1793 if (results.curl_result != CURLE_OK) {
58e60dd2
NH		 1794 fprintf(stderr,
1795 "PUT error: curl result=%d, HTTP code=%ld\n",
baa7b67d 1796 results.curl_result, results.http_code);
58e60dd2
NH		 1797 /* We should attempt recovery? */
1798 return 0;
1799 }
1800 } else {
028c2976 1801 strbuf_release(&out_buffer.buf);
58e60dd2 1802 free(if_header);
58e60dd2
NH		 1803 fprintf(stderr, "Unable to start PUT request\n");
1804 return 0;
1805 }
1806
1807 return 1;
1808}
1809
aa1dbc98
NH		 1810static struct ref *local_refs, **local_tail;
1811static struct ref *remote_refs, **remote_tail;
1812
8da19775 1813static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
aa1dbc98
NH		 1814{
1815 struct ref *ref;
1816 int len = strlen(refname) + 1;
1817 ref = xcalloc(1, sizeof(*ref) + len);
e702496e 1818 hashcpy(ref->new_sha1, sha1);
aa1dbc98
NH		 1819 memcpy(ref->name, refname, len);
1820 *local_tail = ref;
1821 local_tail = &ref->next;
1822 return 0;
1823}
1824
1825static void one_remote_ref(char *refname)
1826{
1827 struct ref *ref;
1828 unsigned char remote_sha1[20];
197e8951 1829 struct object *obj;
8c9e7947 1830 int len = strlen(refname) + 1;
aa1dbc98
NH		 1831
1832 if (fetch_ref(refname, remote_sha1) != 0) {
1833 fprintf(stderr,
1834 "Unable to fetch ref %s from %s\n",
1835 refname, remote->url);
1836 return;
1837 }
1838
197e8951
NH		 1839 /*
1840 * Fetch a copy of the object if it doesn't exist locally - it
1841 * may be required for updating server info later.
1842 */
1843 if (remote->can_update_info_refs && !has_sha1_file(remote_sha1)) {
1844 obj = lookup_unknown_object(remote_sha1);
1845 if (obj) {
1846 fprintf(stderr, " fetch %s for %s\n",
1847 sha1_to_hex(remote_sha1), refname);
1848 add_fetch_request(obj);
1849 }
1850 }
1851
aa1dbc98 1852 ref = xcalloc(1, sizeof(*ref) + len);
e702496e 1853 hashcpy(ref->old_sha1, remote_sha1);
aa1dbc98
NH		 1854 memcpy(ref->name, refname, len);
1855 *remote_tail = ref;
1856 remote_tail = &ref->next;
1857}
1858
1859static void get_local_heads(void)
1860{
1861 local_tail = &local_refs;
cb5d709f 1862 for_each_ref(one_local_ref, NULL);
aa1dbc98
NH		 1863}
1864
1865static void get_dav_remote_heads(void)
1866{
1867 remote_tail = &remote_refs;
3030baa7 1868 remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL);
aa1dbc98
NH		 1869}
1870
1871static int is_zero_sha1(const unsigned char *sha1)
1872{
1873 int i;
1874
1875 for (i = 0; i < 20; i++) {
1876 if (*sha1++)
1877 return 0;
1878 }
1879 return 1;
1880}
1881
1882static void unmark_and_free(struct commit_list *list, unsigned int mark)
1883{
1884 while (list) {
1885 struct commit_list *temp = list;
1886 temp->item->object.flags &= ~mark;
1887 list = temp->next;
1888 free(temp);
1889 }
1890}
1891
1892static int ref_newer(const unsigned char *new_sha1,
1893 const unsigned char *old_sha1)
1894{
1895 struct object *o;
1896 struct commit *old, *new;
1897 struct commit_list *list, *used;
1898 int found = 0;
1899
1900 /* Both new and old must be commit-ish and new is descendant of
1901 * old. Otherwise we require --force.
1902 */
1903 o = deref_tag(parse_object(old_sha1), NULL, 0);
1974632c 1904 if (!o || o->type != OBJ_COMMIT)
aa1dbc98
NH		 1905 return 0;
1906 old = (struct commit *) o;
1907
1908 o = deref_tag(parse_object(new_sha1), NULL, 0);
1974632c 1909 if (!o || o->type != OBJ_COMMIT)
aa1dbc98
NH		 1910 return 0;
1911 new = (struct commit *) o;
1912
1913 if (parse_commit(new) < 0)
1914 return 0;
1915
1916 used = list = NULL;
1917 commit_list_insert(new, &list);
1918 while (list) {
1919 new = pop_most_recent_commit(&list, TMP_MARK);
1920 commit_list_insert(new, &used);
1921 if (new == old) {
1922 found = 1;
1923 break;
1924 }
1925 }
1926 unmark_and_free(list, TMP_MARK);
1927 unmark_and_free(used, TMP_MARK);
1928 return found;
1929}
1930
1931static void mark_edge_parents_uninteresting(struct commit *commit)
1932{
1933 struct commit_list *parents;
1934
1935 for (parents = commit->parents; parents; parents = parents->next) {
1936 struct commit *parent = parents->item;
1937 if (!(parent->object.flags & UNINTERESTING))
1938 continue;
1939 mark_tree_uninteresting(parent->tree);
1940 }
1941}
1942
1943static void mark_edges_uninteresting(struct commit_list *list)
1944{
1945 for ( ; list; list = list->next) {
1946 struct commit *commit = list->item;
1947
1948 if (commit->object.flags & UNINTERESTING) {
1949 mark_tree_uninteresting(commit->tree);
1950 continue;
1951 }
1952 mark_edge_parents_uninteresting(commit);
1953 }
1954}
1955
197e8951
NH		 1956static void add_remote_info_ref(struct remote_ls_ctx *ls)
1957{
028c2976 1958 struct strbuf *buf = (struct strbuf *)ls->userData;
197e8951
NH		 1959 unsigned char remote_sha1[20];
1960 struct object *o;
1961 int len;
1962 char *ref_info;
1963
1964 if (fetch_ref(ls->dentry_name, remote_sha1) != 0) {
1965 fprintf(stderr,
1966 "Unable to fetch ref %s from %s\n",
1967 ls->dentry_name, remote->url);
1968 aborted = 1;
1969 return;
1970 }
1971
1972 o = parse_object(remote_sha1);
1973 if (!o) {
1974 fprintf(stderr,
1975 "Unable to parse object %s for remote ref %s\n",
1976 sha1_to_hex(remote_sha1), ls->dentry_name);
1977 aborted = 1;
1978 return;
1979 }
1980
1981 len = strlen(ls->dentry_name) + 42;
1982 ref_info = xcalloc(len + 1, 1);
1983 sprintf(ref_info, "%s %s\n",
1984 sha1_to_hex(remote_sha1), ls->dentry_name);
1985 fwrite_buffer(ref_info, 1, len, buf);
1986 free(ref_info);
1987
1974632c 1988 if (o->type == OBJ_TAG) {
197e8951
NH		 1989 o = deref_tag(o, ls->dentry_name, 0);
1990 if (o) {
1991 len = strlen(ls->dentry_name) + 45;
1992 ref_info = xcalloc(len + 1, 1);
1993 sprintf(ref_info, "%s %s^{}\n",
1994 sha1_to_hex(o->sha1), ls->dentry_name);
1995 fwrite_buffer(ref_info, 1, len, buf);
1996 free(ref_info);
1997 }
1998 }
1999}
2000
2001static void update_remote_info_refs(struct remote_lock *lock)
2002{
028c2976 2003 struct buffer buffer = { STRBUF_INIT, 0 };
197e8951
NH		 2004 struct active_request_slot *slot;
2005 struct slot_results results;
2006 char *if_header;
2007 struct curl_slist *dav_headers = NULL;
2008
197e8951 2009 remote_ls("refs/", (PROCESS_FILES | RECURSIVE),
028c2976 2010 add_remote_info_ref, &buffer.buf);
197e8951
NH		 2011 if (!aborted) {
2012 if_header = xmalloc(strlen(lock->token) + 25);
2013 sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
2014 dav_headers = curl_slist_append(dav_headers, if_header);
2015
2016 slot = get_active_slot();
2017 slot->results = &results;
2018 curl_easy_setopt(slot->curl, CURLOPT_INFILE, &buffer);
028c2976 2019 curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, buffer.buf.len);
197e8951
NH		 2020 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
2021 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2022 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
2023 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
2024 curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
2025 curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
2026 curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
2027
197e8951
NH		 2028 if (start_active_slot(slot)) {
2029 run_active_slot(slot);
2030 if (results.curl_result != CURLE_OK) {
2031 fprintf(stderr,
2032 "PUT error: curl result=%d, HTTP code=%ld\n",
2033 results.curl_result, results.http_code);
2034 }
2035 }
2036 free(if_header);
2037 }
028c2976 2038 strbuf_release(&buffer.buf);
197e8951
NH		 2039}
2040
2041static int remote_exists(const char *path)
2042{
2043 char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
2044 struct active_request_slot *slot;
2045 struct slot_results results;
2046
2047 sprintf(url, "%s%s", remote->url, path);
2048
028c2976 2049 slot = get_active_slot();
197e8951 2050 slot->results = &results;
028c2976
MH		 2051 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2052 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
197e8951 2053
028c2976 2054 if (start_active_slot(slot)) {
197e8951 2055 run_active_slot(slot);
3b683b91 2056 free(url);
197e8951
NH		 2057 if (results.http_code == 404)
2058 return 0;
2059 else if (results.curl_result == CURLE_OK)
2060 return 1;
2061 else
2062 fprintf(stderr, "HEAD HTTP error %ld\n", results.http_code);
2063 } else {
3b683b91 2064 free(url);
197e8951
NH		 2065 fprintf(stderr, "Unable to start HEAD request\n");
2066 }
2067
2068 return -1;
2069}
2070
554fe20d 2071static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
3dfaf7bc
NH		 2072{
2073 char *url;
028c2976 2074 struct strbuf buffer = STRBUF_INIT;
3dfaf7bc
NH		 2075 struct active_request_slot *slot;
2076 struct slot_results results;
2077
2078 url = xmalloc(strlen(remote->url) + strlen(path) + 1);
2079 sprintf(url, "%s%s", remote->url, path);
2080
3dfaf7bc
NH		 2081 slot = get_active_slot();
2082 slot->results = &results;
2083 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
2084 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
2085 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
2086 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2087 if (start_active_slot(slot)) {
2088 run_active_slot(slot);
2089 if (results.curl_result != CURLE_OK) {
2090 die("Couldn't get %s for remote symref\n%s",
2091 url, curl_errorstr);
2092 }
2093 } else {
2094 die("Unable to start remote symref request");
2095 }
2096 free(url);
2097
2098 if (*symref != NULL)
2099 free(*symref);
2100 *symref = NULL;
a8e0d16d 2101 hashclr(sha1);
3dfaf7bc 2102
028c2976 2103 if (buffer.len == 0)
3dfaf7bc
NH		 2104 return;
2105
2106 /* If it's a symref, set the refname; otherwise try for a sha1 */
028c2976
MH		 2107 if (!prefixcmp((char *)buffer.buf, "ref: ")) {
2108 *symref = xmemdupz((char *)buffer.buf + 5, buffer.len - 6);
3dfaf7bc 2109 } else {
028c2976 2110 get_sha1_hex(buffer.buf, sha1);
3dfaf7bc
NH		 2111 }
2112
028c2976 2113 strbuf_release(&buffer);
3dfaf7bc
NH		 2114}
2115
2116static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
2117{
61ffbcb9
JS		 2118 struct commit *head = lookup_commit(head_sha1);
2119 struct commit *branch = lookup_commit(branch_sha1);
2120 struct commit_list *merge_bases = get_merge_bases(head, branch, 1);
3dfaf7bc 2121
0bc87ffb 2122 return (merge_bases && !merge_bases->next && merge_bases->item == branch);
3dfaf7bc
NH		 2123}
2124
2125static int delete_remote_branch(char *pattern, int force)
2126{
2127 struct ref *refs = remote_refs;
2128 struct ref *remote_ref = NULL;
2129 unsigned char head_sha1[20];
2130 char *symref = NULL;
2131 int match;
2132 int patlen = strlen(pattern);
2133 int i;
2134 struct active_request_slot *slot;
2135 struct slot_results results;
2136 char *url;
2137
2138 /* Find the remote branch(es) matching the specified branch name */
2139 for (match = 0; refs; refs = refs->next) {
2140 char *name = refs->name;
2141 int namelen = strlen(name);
2142 if (namelen < patlen ||
2143 memcmp(name + namelen - patlen, pattern, patlen))
2144 continue;
2145 if (namelen != patlen && name[namelen - patlen - 1] != '/')
2146 continue;
2147 match++;
2148 remote_ref = refs;
2149 }
2150 if (match == 0)
2151 return error("No remote branch matches %s", pattern);
2152 if (match != 1)
2153 return error("More than one remote branch matches %s",
2154 pattern);
2155
2156 /*
2157 * Remote HEAD must be a symref (not exactly foolproof; a remote
2158 * symlink to a symref will look like a symref)
2159 */
2160 fetch_symref("HEAD", &symref, head_sha1);
2161 if (!symref)
2162 return error("Remote HEAD is not a symref");
2163
2164 /* Remote branch must not be the remote HEAD */
2165 for (i=0; symref && i<MAXDEPTH; i++) {
2166 if (!strcmp(remote_ref->name, symref))
2167 return error("Remote branch %s is the current HEAD",
2168 remote_ref->name);
2169 fetch_symref(symref, &symref, head_sha1);
2170 }
2171
2172 /* Run extra sanity checks if delete is not forced */
2173 if (!force) {
2174 /* Remote HEAD must resolve to a known object */
2175 if (symref)
2176 return error("Remote HEAD symrefs too deep");
2177 if (is_zero_sha1(head_sha1))
2178 return error("Unable to resolve remote HEAD");
2179 if (!has_sha1_file(head_sha1))
2180 return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", sha1_to_hex(head_sha1));
2181
2182 /* Remote branch must resolve to a known object */
2183 if (is_zero_sha1(remote_ref->old_sha1))
2184 return error("Unable to resolve remote branch %s",
2185 remote_ref->name);
2186 if (!has_sha1_file(remote_ref->old_sha1))
2187 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));
2188
2189 /* Remote branch must be an ancestor of remote HEAD */
2190 if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
00ae8289
BF		 2191 return error("The branch '%s' is not an ancestor "
2192 "of your current HEAD.\n"
2193 "If you are sure you want to delete it,"
2194 " run:\n\t'git http-push -D %s %s'",
2195 remote_ref->name, remote->url, pattern);
3dfaf7bc
NH		 2196 }
2197 }
2198
2199 /* Send delete request */
2200 fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name);
2201 url = xmalloc(strlen(remote->url) + strlen(remote_ref->name) + 1);
2202 sprintf(url, "%s%s", remote->url, remote_ref->name);
2203 slot = get_active_slot();
2204 slot->results = &results;
2205 curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
2206 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
2207 curl_easy_setopt(slot->curl, CURLOPT_URL, url);
2208 curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_DELETE);
2209 if (start_active_slot(slot)) {
2210 run_active_slot(slot);
2211 free(url);
2212 if (results.curl_result != CURLE_OK)
2213 return error("DELETE request failed (%d/%ld)\n",
2214 results.curl_result, results.http_code);
2215 } else {
2216 free(url);
2217 return error("Unable to start DELETE request");
2218 }
2219
2220 return 0;
2221}
2222
58e60dd2
NH		 2223int main(int argc, char **argv)
2224{
58e60dd2
NH		 2225 struct transfer_request *request;
2226 struct transfer_request *next_request;
2227 int nr_refspec = 0;
2228 char **refspec = NULL;
512d632c 2229 struct remote_lock *ref_lock = NULL;
197e8951 2230 struct remote_lock *info_ref_lock = NULL;
aa1dbc98 2231 struct rev_info revs;
3dfaf7bc
NH		 2232 int delete_branch = 0;
2233 int force_delete = 0;
1a703cba 2234 int objects_to_send;
58e60dd2
NH		 2235 int rc = 0;
2236 int i;
8c9e7947
JH		 2237 int new_refs;
2238 struct ref *ref;
58e60dd2 2239
5a327713 2240 setup_git_directory();
58e60dd2 2241
512d632c 2242 remote = xcalloc(sizeof(*remote), 1);
58e60dd2
NH		 2243
2244 argv++;
2245 for (i = 1; i < argc; i++, argv++) {
2246 char *arg = *argv;
2247
2248 if (*arg == '-') {
aa1dbc98 2249 if (!strcmp(arg, "--all")) {
28b9d6e5 2250 push_all = MATCH_REFS_ALL;
58e60dd2
NH		 2251 continue;
2252 }
2253 if (!strcmp(arg, "--force")) {
2254 force_all = 1;
2255 continue;
2256 }
fe5d1d3e
SP		 2257 if (!strcmp(arg, "--dry-run")) {
2258 dry_run = 1;
2259 continue;
2260 }
58e60dd2
NH		 2261 if (!strcmp(arg, "--verbose")) {
2262 push_verbosely = 1;
2263 continue;
2264 }
3dfaf7bc
NH		 2265 if (!strcmp(arg, "-d")) {
2266 delete_branch = 1;
2267 continue;
2268 }
2269 if (!strcmp(arg, "-D")) {
2270 delete_branch = 1;
2271 force_delete = 1;
2272 continue;
2273 }
58e60dd2
NH		 2274 }
2275 if (!remote->url) {
aa1dbc98 2276 char *path = strstr(arg, "//");
8c9e7947 2277 remote->url = arg;
aa1dbc98 2278 if (path) {
ef9e58c8 2279 path = strchr(path+2, '/');
aa1dbc98
NH		 2280 if (path)
2281 remote->path_len = strlen(path);
2282 }
58e60dd2
NH		 2283 continue;
2284 }
2285 refspec = argv;
2286 nr_refspec = argc - i;
2287 break;
2288 }
2289
3e9fabc8
NH		 2290 if (!remote->url)
2291 usage(http_push_usage);
2292
3dfaf7bc
NH		 2293 if (delete_branch && nr_refspec != 1)
2294 die("You must specify only one branch name when deleting a remote branch");
2295
aa1dbc98 2296 memset(remote_dir_exists, -1, 256);
0dd276b8 2297
29508e1e 2298 http_init();
58e60dd2
NH		 2299
2300 no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
58e60dd2 2301
58e60dd2 2302 /* Verify DAV compliance/lock support */
acf59575 2303 if (!locking_available()) {
58e60dd2
NH		 2304 fprintf(stderr, "Error: no DAV locking support on remote repo %s\n", remote->url);
2305 rc = 1;
2306 goto cleanup;
2307 }
2308
197e8951
NH		 2309 /* Check whether the remote has server info files */
2310 remote->can_update_info_refs = 0;
2311 remote->has_info_refs = remote_exists("info/refs");
2312 remote->has_info_packs = remote_exists("objects/info/packs");
2313 if (remote->has_info_refs) {
2314 info_ref_lock = lock_remote("info/refs", LOCK_TIME);
2315 if (info_ref_lock)
2316 remote->can_update_info_refs = 1;
2317 }
2318 if (remote->has_info_packs)
2319 fetch_indices();
2320
aa1dbc98
NH		 2321 /* Get a list of all local and remote heads to validate refspecs */
2322 get_local_heads();
2323 fprintf(stderr, "Fetching remote heads...\n");
2324 get_dav_remote_heads();
2325
3dfaf7bc
NH		 2326 /* Remove a remote branch if -d or -D was specified */
2327 if (delete_branch) {
2328 if (delete_remote_branch(refspec[0], force_delete) == -1)
2329 fprintf(stderr, "Unable to delete remote branch %s\n",
2330 refspec[0]);
2331 goto cleanup;
2332 }
2333
aa1dbc98
NH		 2334 /* match them up */
2335 if (!remote_tail)
2336 remote_tail = &remote_refs;
2337 if (match_refs(local_refs, remote_refs, &remote_tail,
4577370e 2338 nr_refspec, (const char **) refspec, push_all))
aa1dbc98
NH		 2339 return -1;
2340 if (!remote_refs) {
2341 fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
2342 return 0;
2343 }
2344
8c9e7947 2345 new_refs = 0;
aa1dbc98
NH		 2346 for (ref = remote_refs; ref; ref = ref->next) {
2347 char old_hex[60], *new_hex;
8c9e7947
JH		 2348 const char *commit_argv[4];
2349 int commit_argc;
2350 char *new_sha1_hex, *old_sha1_hex;
2351
aa1dbc98
NH		 2352 if (!ref->peer_ref)
2353 continue;
a89fccd2 2354 if (!hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
aa1dbc98
NH		 2355 if (push_verbosely || 1)
2356 fprintf(stderr, "'%s': up-to-date\n", ref->name);
2357 continue;
2358 }
2359
2360 if (!force_all &&
2361 !is_zero_sha1(ref->old_sha1) &&
2362 !ref->force) {
2363 if (!has_sha1_file(ref->old_sha1) ||
2364 !ref_newer(ref->peer_ref->new_sha1,
2365 ref->old_sha1)) {
00ae8289
BF		 2366 /*
2367 * We do not have the remote ref, or
aa1dbc98
NH		 2368 * we know that the remote ref is not
2369 * an ancestor of what we are trying to
2370 * push. Either way this can be losing
2371 * commits at the remote end and likely
2372 * we were not up to date to begin with.
2373 */
00ae8289
BF		 2374 error("remote '%s' is not an ancestor of\n"
2375 "local '%s'.\n"
2376 "Maybe you are not up-to-date and "
aa1dbc98
NH		 2377 "need to pull first?",
2378 ref->name,
2379 ref->peer_ref->name);
1a703cba 2380 rc = -2;
aa1dbc98
NH		 2381 continue;
2382 }
58e60dd2 2383 }
e702496e 2384 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
aa1dbc98
NH		 2385 if (is_zero_sha1(ref->new_sha1)) {
2386 error("cannot happen anymore");
1a703cba 2387 rc = -3;
aa1dbc98 2388 continue;
58e60dd2 2389 }
aa1dbc98
NH		 2390 new_refs++;
2391 strcpy(old_hex, sha1_to_hex(ref->old_sha1));
2392 new_hex = sha1_to_hex(ref->new_sha1);
2393
2394 fprintf(stderr, "updating '%s'", ref->name);
2395 if (strcmp(ref->name, ref->peer_ref->name))
2396 fprintf(stderr, " using '%s'", ref->peer_ref->name);
2397 fprintf(stderr, "\n from %s\n to %s\n", old_hex, new_hex);
fe5d1d3e
SP		 2398 if (dry_run)
2399 continue;
58e60dd2
NH		 2400
2401 /* Lock remote branch ref */
aa1dbc98
NH		 2402 ref_lock = lock_remote(ref->name, LOCK_TIME);
2403 if (ref_lock == NULL) {
58e60dd2 2404 fprintf(stderr, "Unable to lock remote branch %s\n",
aa1dbc98 2405 ref->name);
58e60dd2
NH		 2406 rc = 1;
2407 continue;
2408 }
2409
aa1dbc98 2410 /* Set up revision info for this refspec */
8c9e7947 2411 commit_argc = 3;
9befac47 2412 new_sha1_hex = xstrdup(sha1_to_hex(ref->new_sha1));
8c9e7947 2413 old_sha1_hex = NULL;
5241bfe6
NH		 2414 commit_argv[1] = "--objects";
2415 commit_argv[2] = new_sha1_hex;
aa1dbc98
NH		 2416 if (!push_all && !is_zero_sha1(ref->old_sha1)) {
2417 old_sha1_hex = xmalloc(42);
2418 sprintf(old_sha1_hex, "^%s",
2419 sha1_to_hex(ref->old_sha1));
5241bfe6 2420 commit_argv[3] = old_sha1_hex;
aa1dbc98 2421 commit_argc++;
58e60dd2 2422 }
db6296a5 2423 init_revisions(&revs, setup_git_directory());
aa1dbc98 2424 setup_revisions(commit_argc, commit_argv, &revs, NULL);
aa1dbc98
NH		 2425 free(new_sha1_hex);
2426 if (old_sha1_hex) {
2427 free(old_sha1_hex);
2428 commit_argv[1] = NULL;
58e60dd2
NH		 2429 }
2430
aa1dbc98 2431 /* Generate a list of objects that need to be pushed */
58e60dd2 2432 pushing = 0;
aa1dbc98
NH		 2433 prepare_revision_walk(&revs);
2434 mark_edges_uninteresting(revs.commits);
1a703cba 2435 objects_to_send = get_delta(&revs, ref_lock);
29508e1e 2436 finish_all_active_slots();
58e60dd2
NH		 2437
2438 /* Push missing objects to remote, this would be a
2439 convenient time to pack them first if appropriate. */
2440 pushing = 1;
1a703cba
NH		 2441 if (objects_to_send)
2442 fprintf(stderr, " sending %d objects\n",
2443 objects_to_send);
b3ca4e4e 2444#ifdef USE_CURL_MULTI
29508e1e 2445 fill_active_slots();
fc57b6aa 2446 add_fill_function(NULL, fill_active_slot);
b3ca4e4e 2447#endif
29508e1e 2448 finish_all_active_slots();
58e60dd2
NH		 2449
2450 /* Update the remote branch if all went well */
aa1dbc98
NH		 2451 if (aborted || !update_remote(ref->new_sha1, ref_lock)) {
2452 rc = 1;
2453 goto unlock;
58e60dd2
NH		 2454 }
2455
2456 unlock:
aa1dbc98
NH		 2457 if (!rc)
2458 fprintf(stderr, " done\n");
2459 unlock_remote(ref_lock);
512d632c 2460 check_locks();
58e60dd2
NH		 2461 }
2462
197e8951
NH		 2463 /* Update remote server info if appropriate */
2464 if (remote->has_info_refs && new_refs) {
2465 if (info_ref_lock && remote->can_update_info_refs) {
2466 fprintf(stderr, "Updating remote server info\n");
fe5d1d3e
SP		 2467 if (!dry_run)
2468 update_remote_info_refs(info_ref_lock);
197e8951
NH		 2469 } else {
2470 fprintf(stderr, "Unable to update server info\n");
2471 }
2472 }
2473 if (info_ref_lock)
2474 unlock_remote(info_ref_lock);
2475
58e60dd2
NH		 2476 cleanup:
2477 free(remote);
2478
2479 curl_slist_free_all(no_pragma_header);
58e60dd2 2480
29508e1e 2481 http_cleanup();
58e60dd2
NH		 2482
2483 request = request_queue_head;
2484 while (request != NULL) {
2485 next_request = request->next;
2486 release_request(request);
58e60dd2
NH		 2487 request = next_request;
2488 }
2489
58e60dd2
NH		 2490 return rc;
2491}
Unnamed repository; edit this file 'description' to name the repository.