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Commit | Line | Data |
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58e60dd2 NH |
1 | #include "cache.h" |
2 | #include "commit.h" | |
3 | #include "pack.h" | |
4 | #include "fetch.h" | |
5 | #include "tag.h" | |
6 | #include "blob.h" | |
29508e1e NH |
7 | #include "http.h" |
8 | ||
bee8e79d | 9 | #include <expat.h> |
58e60dd2 NH |
10 | |
11 | static const char http_push_usage[] = | |
12 | "git-http-push [--complete] [--force] [--verbose] <url> <ref> [<ref>...]\n"; | |
13 | ||
92e2eb9c JS |
14 | #ifndef XML_STATUS_OK |
15 | enum XML_Status { | |
16 | XML_STATUS_OK = 1, | |
17 | XML_STATUS_ERROR = 0 | |
18 | }; | |
19 | #define XML_STATUS_OK 1 | |
20 | #define XML_STATUS_ERROR 0 | |
21 | #endif | |
22 | ||
58e60dd2 NH |
23 | #define RANGE_HEADER_SIZE 30 |
24 | ||
acf59575 | 25 | /* DAV methods */ |
58e60dd2 NH |
26 | #define DAV_LOCK "LOCK" |
27 | #define DAV_MKCOL "MKCOL" | |
28 | #define DAV_MOVE "MOVE" | |
29 | #define DAV_PROPFIND "PROPFIND" | |
30 | #define DAV_PUT "PUT" | |
31 | #define DAV_UNLOCK "UNLOCK" | |
acf59575 NH |
32 | |
33 | /* DAV lock flags */ | |
34 | #define DAV_PROP_LOCKWR (1u << 0) | |
35 | #define DAV_PROP_LOCKEX (1u << 1) | |
36 | #define DAV_LOCK_OK (1u << 2) | |
37 | ||
38 | /* DAV XML properties */ | |
39 | #define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry" | |
40 | #define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write" | |
41 | #define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive" | |
42 | #define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href" | |
43 | #define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout" | |
44 | #define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href" | |
45 | ||
46 | /* DAV request body templates */ | |
58e60dd2 NH |
47 | #define PROPFIND_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>" |
48 | #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>" | |
49 | ||
75187c9d NH |
50 | #define LOCK_TIME 600 |
51 | #define LOCK_REFRESH 30 | |
52 | ||
58e60dd2 NH |
53 | static int pushing = 0; |
54 | static int aborted = 0; | |
0dd276b8 | 55 | static char remote_dir_exists[256]; |
58e60dd2 | 56 | |
58e60dd2 NH |
57 | static struct curl_slist *no_pragma_header; |
58 | static struct curl_slist *default_headers; | |
58e60dd2 NH |
59 | |
60 | static int push_verbosely = 0; | |
61 | static int push_all = 0; | |
62 | static int force_all = 0; | |
63 | ||
58e60dd2 NH |
64 | struct repo |
65 | { | |
66 | char *url; | |
67 | struct packed_git *packs; | |
68 | }; | |
69 | ||
70 | static struct repo *remote = NULL; | |
71 | ||
72 | enum transfer_state { | |
73 | NEED_CHECK, | |
74 | RUN_HEAD, | |
75 | NEED_PUSH, | |
76 | RUN_MKCOL, | |
77 | RUN_PUT, | |
78 | RUN_MOVE, | |
79 | ABORTED, | |
80 | COMPLETE, | |
81 | }; | |
82 | ||
83 | struct transfer_request | |
84 | { | |
85 | unsigned char sha1[20]; | |
86 | char *url; | |
87 | char *dest; | |
26349b2e | 88 | struct active_lock *lock; |
58e60dd2 NH |
89 | struct curl_slist *headers; |
90 | struct buffer buffer; | |
91 | char filename[PATH_MAX]; | |
92 | char tmpfile[PATH_MAX]; | |
93 | enum transfer_state state; | |
94 | CURLcode curl_result; | |
95 | char errorstr[CURL_ERROR_SIZE]; | |
96 | long http_code; | |
97 | unsigned char real_sha1[20]; | |
98 | SHA_CTX c; | |
99 | z_stream stream; | |
100 | int zret; | |
101 | int rename; | |
102 | struct active_request_slot *slot; | |
103 | struct transfer_request *next; | |
104 | }; | |
105 | ||
58e60dd2 | 106 | static struct transfer_request *request_queue_head = NULL; |
58e60dd2 | 107 | |
acf59575 NH |
108 | struct xml_ctx |
109 | { | |
110 | char *name; | |
111 | int len; | |
112 | char *cdata; | |
113 | void (*userFunc)(struct xml_ctx *ctx, int tag_closed); | |
114 | void *userData; | |
115 | }; | |
116 | ||
26349b2e NH |
117 | struct active_lock |
118 | { | |
75187c9d | 119 | char *url; |
26349b2e | 120 | char *owner; |
75187c9d | 121 | char *token; |
26349b2e NH |
122 | time_t start_time; |
123 | long timeout; | |
75187c9d | 124 | int refreshing; |
26349b2e NH |
125 | }; |
126 | ||
29508e1e | 127 | static void finish_request(struct transfer_request *request); |
58e60dd2 | 128 | |
29508e1e | 129 | static void process_response(void *callback_data) |
58e60dd2 | 130 | { |
29508e1e NH |
131 | struct transfer_request *request = |
132 | (struct transfer_request *)callback_data; | |
58e60dd2 | 133 | |
29508e1e | 134 | finish_request(request); |
58e60dd2 NH |
135 | } |
136 | ||
137 | static void start_check(struct transfer_request *request) | |
138 | { | |
139 | char *hex = sha1_to_hex(request->sha1); | |
140 | struct active_request_slot *slot; | |
141 | char *posn; | |
142 | ||
143 | request->url = xmalloc(strlen(remote->url) + 55); | |
144 | strcpy(request->url, remote->url); | |
145 | posn = request->url + strlen(remote->url); | |
146 | strcpy(posn, "objects/"); | |
147 | posn += 8; | |
148 | memcpy(posn, hex, 2); | |
149 | posn += 2; | |
150 | *(posn++) = '/'; | |
151 | strcpy(posn, hex + 2); | |
152 | ||
153 | slot = get_active_slot(); | |
29508e1e NH |
154 | slot->callback_func = process_response; |
155 | slot->callback_data = request; | |
58e60dd2 NH |
156 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr); |
157 | curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); | |
158 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
159 | ||
160 | if (start_active_slot(slot)) { | |
161 | request->slot = slot; | |
162 | request->state = RUN_HEAD; | |
163 | } else { | |
164 | request->state = ABORTED; | |
165 | free(request->url); | |
7b899967 | 166 | request->url = NULL; |
58e60dd2 NH |
167 | } |
168 | } | |
169 | ||
170 | static void start_mkcol(struct transfer_request *request) | |
171 | { | |
172 | char *hex = sha1_to_hex(request->sha1); | |
173 | struct active_request_slot *slot; | |
174 | char *posn; | |
175 | ||
176 | request->url = xmalloc(strlen(remote->url) + 13); | |
177 | strcpy(request->url, remote->url); | |
178 | posn = request->url + strlen(remote->url); | |
179 | strcpy(posn, "objects/"); | |
180 | posn += 8; | |
181 | memcpy(posn, hex, 2); | |
182 | posn += 2; | |
183 | strcpy(posn, "/"); | |
184 | ||
185 | slot = get_active_slot(); | |
29508e1e NH |
186 | slot->callback_func = process_response; |
187 | slot->callback_data = request; | |
58e60dd2 NH |
188 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */ |
189 | curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); | |
190 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr); | |
191 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL); | |
192 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); | |
193 | ||
194 | if (start_active_slot(slot)) { | |
195 | request->slot = slot; | |
196 | request->state = RUN_MKCOL; | |
197 | } else { | |
198 | request->state = ABORTED; | |
199 | free(request->url); | |
7b899967 | 200 | request->url = NULL; |
58e60dd2 NH |
201 | } |
202 | } | |
203 | ||
204 | static void start_put(struct transfer_request *request) | |
205 | { | |
206 | char *hex = sha1_to_hex(request->sha1); | |
207 | struct active_request_slot *slot; | |
208 | char *posn; | |
209 | char type[20]; | |
210 | char hdr[50]; | |
211 | void *unpacked; | |
212 | unsigned long len; | |
213 | int hdrlen; | |
214 | ssize_t size; | |
215 | z_stream stream; | |
216 | ||
217 | unpacked = read_sha1_file(request->sha1, type, &len); | |
218 | hdrlen = sprintf(hdr, "%s %lu", type, len) + 1; | |
219 | ||
220 | /* Set it up */ | |
221 | memset(&stream, 0, sizeof(stream)); | |
222 | deflateInit(&stream, Z_BEST_COMPRESSION); | |
223 | size = deflateBound(&stream, len + hdrlen); | |
224 | request->buffer.buffer = xmalloc(size); | |
225 | ||
226 | /* Compress it */ | |
227 | stream.next_out = request->buffer.buffer; | |
228 | stream.avail_out = size; | |
229 | ||
230 | /* First header.. */ | |
231 | stream.next_in = (void *)hdr; | |
232 | stream.avail_in = hdrlen; | |
233 | while (deflate(&stream, 0) == Z_OK) | |
234 | /* nothing */; | |
235 | ||
236 | /* Then the data itself.. */ | |
237 | stream.next_in = unpacked; | |
238 | stream.avail_in = len; | |
239 | while (deflate(&stream, Z_FINISH) == Z_OK) | |
240 | /* nothing */; | |
241 | deflateEnd(&stream); | |
242 | free(unpacked); | |
243 | ||
244 | request->buffer.size = stream.total_out; | |
245 | request->buffer.posn = 0; | |
246 | ||
58e60dd2 | 247 | request->url = xmalloc(strlen(remote->url) + |
26349b2e | 248 | strlen(request->lock->token) + 51); |
58e60dd2 NH |
249 | strcpy(request->url, remote->url); |
250 | posn = request->url + strlen(remote->url); | |
251 | strcpy(posn, "objects/"); | |
252 | posn += 8; | |
253 | memcpy(posn, hex, 2); | |
254 | posn += 2; | |
255 | *(posn++) = '/'; | |
256 | strcpy(posn, hex + 2); | |
257 | request->dest = xmalloc(strlen(request->url) + 14); | |
258 | sprintf(request->dest, "Destination: %s", request->url); | |
259 | posn += 38; | |
260 | *(posn++) = '.'; | |
26349b2e | 261 | strcpy(posn, request->lock->token); |
58e60dd2 NH |
262 | |
263 | slot = get_active_slot(); | |
29508e1e NH |
264 | slot->callback_func = process_response; |
265 | slot->callback_data = request; | |
58e60dd2 NH |
266 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer); |
267 | curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.size); | |
268 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer); | |
269 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); | |
270 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT); | |
271 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1); | |
272 | curl_easy_setopt(slot->curl, CURLOPT_PUT, 1); | |
273 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
274 | curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); | |
275 | ||
276 | if (start_active_slot(slot)) { | |
277 | request->slot = slot; | |
278 | request->state = RUN_PUT; | |
279 | } else { | |
280 | request->state = ABORTED; | |
281 | free(request->url); | |
7b899967 | 282 | request->url = NULL; |
58e60dd2 NH |
283 | } |
284 | } | |
285 | ||
286 | static void start_move(struct transfer_request *request) | |
287 | { | |
288 | struct active_request_slot *slot; | |
289 | struct curl_slist *dav_headers = NULL; | |
290 | ||
291 | slot = get_active_slot(); | |
29508e1e NH |
292 | slot->callback_func = process_response; |
293 | slot->callback_data = request; | |
58e60dd2 NH |
294 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */ |
295 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MOVE); | |
296 | dav_headers = curl_slist_append(dav_headers, request->dest); | |
297 | dav_headers = curl_slist_append(dav_headers, "Overwrite: T"); | |
298 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); | |
299 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); | |
300 | curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); | |
301 | ||
302 | if (start_active_slot(slot)) { | |
303 | request->slot = slot; | |
304 | request->state = RUN_MOVE; | |
305 | } else { | |
306 | request->state = ABORTED; | |
307 | free(request->url); | |
7b899967 | 308 | request->url = NULL; |
58e60dd2 NH |
309 | } |
310 | } | |
311 | ||
f4f440a0 | 312 | static int refresh_lock(struct active_lock *lock) |
75187c9d NH |
313 | { |
314 | struct active_request_slot *slot; | |
315 | char *if_header; | |
316 | char timeout_header[25]; | |
317 | struct curl_slist *dav_headers = NULL; | |
318 | int rc = 0; | |
319 | ||
320 | lock->refreshing = 1; | |
321 | ||
322 | if_header = xmalloc(strlen(lock->token) + 25); | |
323 | sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token); | |
324 | sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout); | |
325 | dav_headers = curl_slist_append(dav_headers, if_header); | |
326 | dav_headers = curl_slist_append(dav_headers, timeout_header); | |
327 | ||
328 | slot = get_active_slot(); | |
329 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
330 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); | |
331 | curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url); | |
332 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK); | |
333 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); | |
334 | ||
335 | if (start_active_slot(slot)) { | |
336 | run_active_slot(slot); | |
337 | if (slot->curl_result != CURLE_OK) { | |
338 | fprintf(stderr, "Got HTTP error %ld\n", slot->http_code); | |
339 | } else { | |
340 | lock->start_time = time(NULL); | |
341 | rc = 1; | |
342 | } | |
343 | } | |
344 | ||
345 | lock->refreshing = 0; | |
346 | curl_slist_free_all(dav_headers); | |
347 | free(if_header); | |
348 | ||
349 | return rc; | |
350 | } | |
351 | ||
58e60dd2 NH |
352 | static void finish_request(struct transfer_request *request) |
353 | { | |
75187c9d NH |
354 | time_t current_time = time(NULL); |
355 | int time_remaining; | |
356 | ||
58e60dd2 NH |
357 | request->curl_result = request->slot->curl_result; |
358 | request->http_code = request->slot->http_code; | |
359 | request->slot = NULL; | |
75187c9d NH |
360 | |
361 | /* Refresh the lock if it is close to timing out */ | |
362 | time_remaining = request->lock->start_time + request->lock->timeout | |
363 | - current_time; | |
364 | if (time_remaining < LOCK_REFRESH && !request->lock->refreshing) { | |
365 | if (!refresh_lock(request->lock)) { | |
366 | fprintf(stderr, "Unable to refresh remote lock\n"); | |
367 | aborted = 1; | |
368 | } | |
369 | } | |
370 | ||
58e60dd2 NH |
371 | if (request->headers != NULL) |
372 | curl_slist_free_all(request->headers); | |
7b899967 NH |
373 | |
374 | /* URL is reused for MOVE after PUT */ | |
375 | if (request->state != RUN_PUT) { | |
376 | free(request->url); | |
377 | request->url = NULL; | |
378 | } | |
379 | ||
58e60dd2 NH |
380 | if (request->state == RUN_HEAD) { |
381 | if (request->http_code == 404) { | |
382 | request->state = NEED_PUSH; | |
383 | } else if (request->curl_result == CURLE_OK) { | |
0dd276b8 | 384 | remote_dir_exists[request->sha1[0]] = 1; |
58e60dd2 NH |
385 | request->state = COMPLETE; |
386 | } else { | |
387 | fprintf(stderr, "HEAD %s failed, aborting (%d/%ld)\n", | |
388 | sha1_to_hex(request->sha1), | |
389 | request->curl_result, request->http_code); | |
390 | request->state = ABORTED; | |
391 | aborted = 1; | |
392 | } | |
393 | } else if (request->state == RUN_MKCOL) { | |
394 | if (request->curl_result == CURLE_OK || | |
395 | request->http_code == 405) { | |
0dd276b8 | 396 | remote_dir_exists[request->sha1[0]] = 1; |
58e60dd2 NH |
397 | start_put(request); |
398 | } else { | |
399 | fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n", | |
400 | sha1_to_hex(request->sha1), | |
401 | request->curl_result, request->http_code); | |
402 | request->state = ABORTED; | |
403 | aborted = 1; | |
404 | } | |
405 | } else if (request->state == RUN_PUT) { | |
406 | if (request->curl_result == CURLE_OK) { | |
407 | start_move(request); | |
408 | } else { | |
409 | fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n", | |
410 | sha1_to_hex(request->sha1), | |
411 | request->curl_result, request->http_code); | |
412 | request->state = ABORTED; | |
413 | aborted = 1; | |
414 | } | |
415 | } else if (request->state == RUN_MOVE) { | |
416 | if (request->curl_result == CURLE_OK) { | |
417 | if (push_verbosely) | |
418 | fprintf(stderr, | |
419 | "sent %s\n", | |
420 | sha1_to_hex(request->sha1)); | |
421 | request->state = COMPLETE; | |
422 | } else { | |
423 | fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n", | |
424 | sha1_to_hex(request->sha1), | |
425 | request->curl_result, request->http_code); | |
426 | request->state = ABORTED; | |
427 | aborted = 1; | |
428 | } | |
429 | } | |
430 | } | |
431 | ||
432 | static void release_request(struct transfer_request *request) | |
433 | { | |
434 | struct transfer_request *entry = request_queue_head; | |
435 | ||
436 | if (request == request_queue_head) { | |
437 | request_queue_head = request->next; | |
438 | } else { | |
439 | while (entry->next != NULL && entry->next != request) | |
440 | entry = entry->next; | |
441 | if (entry->next == request) | |
442 | entry->next = entry->next->next; | |
443 | } | |
444 | ||
7b899967 NH |
445 | if (request->url != NULL) |
446 | free(request->url); | |
58e60dd2 NH |
447 | free(request); |
448 | } | |
449 | ||
29508e1e | 450 | void fill_active_slots(void) |
58e60dd2 NH |
451 | { |
452 | struct transfer_request *request = request_queue_head; | |
453 | struct active_request_slot *slot = active_queue_head; | |
454 | int num_transfers; | |
455 | ||
456 | if (aborted) | |
457 | return; | |
458 | ||
459 | while (active_requests < max_requests && request != NULL) { | |
460 | if (!pushing && request->state == NEED_CHECK) { | |
461 | start_check(request); | |
462 | curl_multi_perform(curlm, &num_transfers); | |
463 | } else if (pushing && request->state == NEED_PUSH) { | |
0dd276b8 NH |
464 | if (remote_dir_exists[request->sha1[0]]) |
465 | start_put(request); | |
466 | else | |
467 | start_mkcol(request); | |
58e60dd2 NH |
468 | curl_multi_perform(curlm, &num_transfers); |
469 | } | |
470 | request = request->next; | |
471 | } | |
472 | ||
473 | while (slot != NULL) { | |
474 | if (!slot->in_use && slot->curl != NULL) { | |
475 | curl_easy_cleanup(slot->curl); | |
476 | slot->curl = NULL; | |
477 | } | |
478 | slot = slot->next; | |
479 | } | |
480 | } | |
58e60dd2 | 481 | |
f4f440a0 | 482 | static void add_request(unsigned char *sha1, struct active_lock *lock) |
58e60dd2 NH |
483 | { |
484 | struct transfer_request *request = request_queue_head; | |
58e60dd2 NH |
485 | struct packed_git *target; |
486 | ||
487 | while (request != NULL && memcmp(request->sha1, sha1, 20)) | |
488 | request = request->next; | |
489 | if (request != NULL) | |
490 | return; | |
491 | ||
492 | target = find_sha1_pack(sha1, remote->packs); | |
493 | if (target) | |
494 | return; | |
495 | ||
496 | request = xmalloc(sizeof(*request)); | |
497 | memcpy(request->sha1, sha1, 20); | |
498 | request->url = NULL; | |
26349b2e | 499 | request->lock = lock; |
58e60dd2 NH |
500 | request->headers = NULL; |
501 | request->state = NEED_CHECK; | |
c17fb6ee NH |
502 | request->next = request_queue_head; |
503 | request_queue_head = request; | |
29508e1e NH |
504 | |
505 | fill_active_slots(); | |
506 | step_active_slots(); | |
58e60dd2 NH |
507 | } |
508 | ||
509 | static int fetch_index(unsigned char *sha1) | |
510 | { | |
511 | char *hex = sha1_to_hex(sha1); | |
512 | char *filename; | |
513 | char *url; | |
514 | char tmpfile[PATH_MAX]; | |
515 | long prev_posn = 0; | |
516 | char range[RANGE_HEADER_SIZE]; | |
517 | struct curl_slist *range_header = NULL; | |
518 | ||
519 | FILE *indexfile; | |
520 | struct active_request_slot *slot; | |
521 | ||
c17fb6ee NH |
522 | /* Don't use the index if the pack isn't there */ |
523 | url = xmalloc(strlen(remote->url) + 65); | |
524 | sprintf(url, "%s/objects/pack/pack-%s.pack", remote->url, hex); | |
525 | slot = get_active_slot(); | |
526 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
527 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
528 | if (start_active_slot(slot)) { | |
529 | run_active_slot(slot); | |
530 | if (slot->curl_result != CURLE_OK) { | |
531 | free(url); | |
532 | return error("Unable to verify pack %s is available", | |
533 | hex); | |
534 | } | |
535 | } else { | |
536 | return error("Unable to start request"); | |
537 | } | |
538 | ||
58e60dd2 NH |
539 | if (has_pack_index(sha1)) |
540 | return 0; | |
541 | ||
542 | if (push_verbosely) | |
543 | fprintf(stderr, "Getting index for pack %s\n", hex); | |
544 | ||
58e60dd2 NH |
545 | sprintf(url, "%s/objects/pack/pack-%s.idx", remote->url, hex); |
546 | ||
547 | filename = sha1_pack_index_name(sha1); | |
548 | snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename); | |
549 | indexfile = fopen(tmpfile, "a"); | |
550 | if (!indexfile) | |
551 | return error("Unable to open local file %s for pack index", | |
552 | filename); | |
553 | ||
554 | slot = get_active_slot(); | |
c17fb6ee NH |
555 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
556 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
58e60dd2 NH |
557 | curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile); |
558 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
559 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
560 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); | |
561 | slot->local = indexfile; | |
562 | ||
563 | /* If there is data present from a previous transfer attempt, | |
564 | resume where it left off */ | |
565 | prev_posn = ftell(indexfile); | |
566 | if (prev_posn>0) { | |
567 | if (push_verbosely) | |
568 | fprintf(stderr, | |
569 | "Resuming fetch of index for pack %s at byte %ld\n", | |
570 | hex, prev_posn); | |
571 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
572 | range_header = curl_slist_append(range_header, range); | |
573 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header); | |
574 | } | |
575 | ||
576 | if (start_active_slot(slot)) { | |
577 | run_active_slot(slot); | |
578 | if (slot->curl_result != CURLE_OK) { | |
579 | free(url); | |
580 | fclose(indexfile); | |
581 | return error("Unable to get pack index %s\n%s", url, | |
582 | curl_errorstr); | |
583 | } | |
584 | } else { | |
585 | free(url); | |
7b899967 | 586 | fclose(indexfile); |
58e60dd2 NH |
587 | return error("Unable to start request"); |
588 | } | |
589 | ||
590 | free(url); | |
591 | fclose(indexfile); | |
592 | ||
593 | return move_temp_to_file(tmpfile, filename); | |
594 | } | |
595 | ||
596 | static int setup_index(unsigned char *sha1) | |
597 | { | |
598 | struct packed_git *new_pack; | |
58e60dd2 NH |
599 | |
600 | if (fetch_index(sha1)) | |
601 | return -1; | |
602 | ||
603 | new_pack = parse_pack_index(sha1); | |
604 | new_pack->next = remote->packs; | |
605 | remote->packs = new_pack; | |
606 | return 0; | |
607 | } | |
608 | ||
f4f440a0 | 609 | static int fetch_indices(void) |
58e60dd2 NH |
610 | { |
611 | unsigned char sha1[20]; | |
612 | char *url; | |
613 | struct buffer buffer; | |
614 | char *data; | |
615 | int i = 0; | |
616 | ||
617 | struct active_request_slot *slot; | |
618 | ||
619 | data = xmalloc(4096); | |
620 | memset(data, 0, 4096); | |
621 | buffer.size = 4096; | |
622 | buffer.posn = 0; | |
623 | buffer.buffer = data; | |
624 | ||
625 | if (push_verbosely) | |
626 | fprintf(stderr, "Getting pack list\n"); | |
627 | ||
628 | url = xmalloc(strlen(remote->url) + 21); | |
629 | sprintf(url, "%s/objects/info/packs", remote->url); | |
630 | ||
631 | slot = get_active_slot(); | |
632 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
29508e1e | 633 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); |
58e60dd2 NH |
634 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
635 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL); | |
636 | if (start_active_slot(slot)) { | |
637 | run_active_slot(slot); | |
638 | if (slot->curl_result != CURLE_OK) { | |
639 | free(buffer.buffer); | |
640 | free(url); | |
641 | if (slot->http_code == 404) | |
642 | return 0; | |
643 | else | |
644 | return error("%s", curl_errorstr); | |
645 | } | |
646 | } else { | |
647 | free(buffer.buffer); | |
648 | free(url); | |
649 | return error("Unable to start request"); | |
650 | } | |
651 | free(url); | |
652 | ||
653 | data = buffer.buffer; | |
654 | while (i < buffer.posn) { | |
655 | switch (data[i]) { | |
656 | case 'P': | |
657 | i++; | |
658 | if (i + 52 < buffer.posn && | |
659 | !strncmp(data + i, " pack-", 6) && | |
660 | !strncmp(data + i + 46, ".pack\n", 6)) { | |
661 | get_sha1_hex(data + i + 6, sha1); | |
662 | setup_index(sha1); | |
663 | i += 51; | |
664 | break; | |
665 | } | |
666 | default: | |
667 | while (data[i] != '\n') | |
668 | i++; | |
669 | } | |
670 | i++; | |
671 | } | |
672 | ||
673 | free(buffer.buffer); | |
674 | return 0; | |
675 | } | |
676 | ||
677 | static inline int needs_quote(int ch) | |
678 | { | |
679 | switch (ch) { | |
680 | case '/': case '-': case '.': | |
681 | case 'A'...'Z': case 'a'...'z': case '0'...'9': | |
682 | return 0; | |
683 | default: | |
684 | return 1; | |
685 | } | |
686 | } | |
687 | ||
688 | static inline int hex(int v) | |
689 | { | |
690 | if (v < 10) return '0' + v; | |
691 | else return 'A' + v - 10; | |
692 | } | |
693 | ||
694 | static char *quote_ref_url(const char *base, const char *ref) | |
695 | { | |
696 | const char *cp; | |
697 | char *dp, *qref; | |
698 | int len, baselen, ch; | |
699 | ||
700 | baselen = strlen(base); | |
701 | len = baselen + 12; /* "refs/heads/" + NUL */ | |
702 | for (cp = ref; (ch = *cp) != 0; cp++, len++) | |
703 | if (needs_quote(ch)) | |
704 | len += 2; /* extra two hex plus replacement % */ | |
705 | qref = xmalloc(len); | |
706 | memcpy(qref, base, baselen); | |
707 | memcpy(qref + baselen, "refs/heads/", 11); | |
708 | for (cp = ref, dp = qref + baselen + 11; (ch = *cp) != 0; cp++) { | |
709 | if (needs_quote(ch)) { | |
710 | *dp++ = '%'; | |
711 | *dp++ = hex((ch >> 4) & 0xF); | |
712 | *dp++ = hex(ch & 0xF); | |
713 | } | |
714 | else | |
715 | *dp++ = ch; | |
716 | } | |
717 | *dp = 0; | |
718 | ||
719 | return qref; | |
720 | } | |
721 | ||
722 | int fetch_ref(char *ref, unsigned char *sha1) | |
723 | { | |
724 | char *url; | |
725 | char hex[42]; | |
726 | struct buffer buffer; | |
727 | char *base = remote->url; | |
728 | struct active_request_slot *slot; | |
729 | buffer.size = 41; | |
730 | buffer.posn = 0; | |
731 | buffer.buffer = hex; | |
732 | hex[41] = '\0'; | |
733 | ||
734 | url = quote_ref_url(base, ref); | |
735 | slot = get_active_slot(); | |
736 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
29508e1e | 737 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); |
58e60dd2 NH |
738 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL); |
739 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
740 | if (start_active_slot(slot)) { | |
741 | run_active_slot(slot); | |
742 | if (slot->curl_result != CURLE_OK) | |
743 | return error("Couldn't get %s for %s\n%s", | |
744 | url, ref, curl_errorstr); | |
745 | } else { | |
746 | return error("Unable to start request"); | |
747 | } | |
748 | ||
749 | hex[40] = '\0'; | |
750 | get_sha1_hex(hex, sha1); | |
751 | return 0; | |
752 | } | |
753 | ||
acf59575 | 754 | static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed) |
26349b2e | 755 | { |
acf59575 NH |
756 | int *lock_flags = (int *)ctx->userData; |
757 | ||
758 | if (tag_closed) { | |
759 | if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) { | |
760 | if ((*lock_flags & DAV_PROP_LOCKEX) && | |
761 | (*lock_flags & DAV_PROP_LOCKWR)) { | |
762 | *lock_flags |= DAV_LOCK_OK; | |
763 | } | |
764 | *lock_flags &= DAV_LOCK_OK; | |
765 | } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) { | |
766 | *lock_flags |= DAV_PROP_LOCKWR; | |
767 | } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) { | |
768 | *lock_flags |= DAV_PROP_LOCKEX; | |
769 | } | |
770 | } | |
26349b2e NH |
771 | } |
772 | ||
acf59575 | 773 | static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed) |
26349b2e | 774 | { |
acf59575 NH |
775 | struct active_lock *lock = (struct active_lock *)ctx->userData; |
776 | ||
777 | if (tag_closed && ctx->cdata) { | |
778 | if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) { | |
779 | lock->owner = xmalloc(strlen(ctx->cdata) + 1); | |
780 | strcpy(lock->owner, ctx->cdata); | |
781 | } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) { | |
782 | if (!strncmp(ctx->cdata, "Second-", 7)) | |
783 | lock->timeout = | |
784 | strtol(ctx->cdata + 7, NULL, 10); | |
785 | } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) { | |
786 | if (!strncmp(ctx->cdata, "opaquelocktoken:", 16)) { | |
3e2f62be | 787 | lock->token = xmalloc(strlen(ctx->cdata) - 15); |
acf59575 NH |
788 | strcpy(lock->token, ctx->cdata + 16); |
789 | } | |
790 | } | |
26349b2e NH |
791 | } |
792 | } | |
793 | ||
794 | static void | |
acf59575 | 795 | xml_start_tag(void *userData, const char *name, const char **atts) |
26349b2e | 796 | { |
acf59575 NH |
797 | struct xml_ctx *ctx = (struct xml_ctx *)userData; |
798 | const char *c = index(name, ':'); | |
799 | int new_len; | |
800 | ||
801 | if (c == NULL) | |
802 | c = name; | |
803 | else | |
804 | c++; | |
805 | ||
806 | new_len = strlen(ctx->name) + strlen(c) + 2; | |
807 | ||
808 | if (new_len > ctx->len) { | |
809 | ctx->name = xrealloc(ctx->name, new_len); | |
810 | ctx->len = new_len; | |
26349b2e | 811 | } |
acf59575 NH |
812 | strcat(ctx->name, "."); |
813 | strcat(ctx->name, c); | |
26349b2e | 814 | |
acf59575 NH |
815 | if (ctx->cdata) { |
816 | free(ctx->cdata); | |
817 | ctx->cdata = NULL; | |
818 | } | |
819 | ||
820 | ctx->userFunc(ctx, 0); | |
26349b2e NH |
821 | } |
822 | ||
58e60dd2 | 823 | static void |
acf59575 | 824 | xml_end_tag(void *userData, const char *name) |
58e60dd2 | 825 | { |
acf59575 NH |
826 | struct xml_ctx *ctx = (struct xml_ctx *)userData; |
827 | const char *c = index(name, ':'); | |
828 | char *ep; | |
58e60dd2 | 829 | |
acf59575 NH |
830 | ctx->userFunc(ctx, 1); |
831 | ||
832 | if (c == NULL) | |
833 | c = name; | |
834 | else | |
835 | c++; | |
836 | ||
837 | ep = ctx->name + strlen(ctx->name) - strlen(c) - 1; | |
838 | *ep = 0; | |
58e60dd2 NH |
839 | } |
840 | ||
841 | static void | |
acf59575 | 842 | xml_cdata(void *userData, const XML_Char *s, int len) |
58e60dd2 | 843 | { |
acf59575 NH |
844 | struct xml_ctx *ctx = (struct xml_ctx *)userData; |
845 | if (ctx->cdata) | |
846 | free(ctx->cdata); | |
847 | ctx->cdata = xcalloc(len+1, 1); | |
848 | strncpy(ctx->cdata, s, len); | |
58e60dd2 NH |
849 | } |
850 | ||
f4f440a0 | 851 | static struct active_lock *lock_remote(char *file, long timeout) |
58e60dd2 NH |
852 | { |
853 | struct active_request_slot *slot; | |
854 | struct buffer out_buffer; | |
26349b2e | 855 | struct buffer in_buffer; |
58e60dd2 | 856 | char *out_data; |
26349b2e | 857 | char *in_data; |
58e60dd2 | 858 | char *url; |
0772b9a6 | 859 | char *ep; |
58e60dd2 | 860 | char timeout_header[25]; |
acf59575 | 861 | struct active_lock *new_lock = NULL; |
26349b2e NH |
862 | XML_Parser parser = XML_ParserCreate(NULL); |
863 | enum XML_Status result; | |
58e60dd2 | 864 | struct curl_slist *dav_headers = NULL; |
acf59575 | 865 | struct xml_ctx ctx; |
58e60dd2 | 866 | |
0772b9a6 NH |
867 | url = xmalloc(strlen(remote->url) + strlen(file) + 1); |
868 | sprintf(url, "%s%s", remote->url, file); | |
869 | ||
870 | /* Make sure leading directories exist for the remote ref */ | |
871 | ep = strchr(url + strlen(remote->url) + 11, '/'); | |
872 | while (ep) { | |
873 | *ep = 0; | |
874 | slot = get_active_slot(); | |
875 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
876 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
877 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL); | |
878 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); | |
879 | if (start_active_slot(slot)) { | |
880 | run_active_slot(slot); | |
881 | if (slot->curl_result != CURLE_OK && | |
882 | slot->http_code != 405) { | |
883 | fprintf(stderr, | |
884 | "Unable to create branch path %s\n", | |
885 | url); | |
886 | free(url); | |
887 | return NULL; | |
888 | } | |
889 | } else { | |
890 | fprintf(stderr, "Unable to start request\n"); | |
891 | free(url); | |
892 | return NULL; | |
893 | } | |
894 | *ep = '/'; | |
895 | ep = strchr(ep + 1, '/'); | |
896 | } | |
897 | ||
58e60dd2 NH |
898 | out_buffer.size = strlen(LOCK_REQUEST) + strlen(git_default_email) - 2; |
899 | out_data = xmalloc(out_buffer.size + 1); | |
900 | snprintf(out_data, out_buffer.size + 1, LOCK_REQUEST, git_default_email); | |
901 | out_buffer.posn = 0; | |
902 | out_buffer.buffer = out_data; | |
903 | ||
26349b2e NH |
904 | in_buffer.size = 4096; |
905 | in_data = xmalloc(in_buffer.size); | |
906 | in_buffer.posn = 0; | |
907 | in_buffer.buffer = in_data; | |
908 | ||
75187c9d | 909 | sprintf(timeout_header, "Timeout: Second-%ld", timeout); |
58e60dd2 NH |
910 | dav_headers = curl_slist_append(dav_headers, timeout_header); |
911 | dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml"); | |
912 | ||
913 | slot = get_active_slot(); | |
914 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer); | |
915 | curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size); | |
916 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer); | |
26349b2e | 917 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer); |
29508e1e | 918 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); |
58e60dd2 NH |
919 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
920 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1); | |
921 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK); | |
922 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); | |
923 | ||
acf59575 NH |
924 | new_lock = xcalloc(1, sizeof(*new_lock)); |
925 | new_lock->owner = NULL; | |
926 | new_lock->token = NULL; | |
927 | new_lock->timeout = -1; | |
928 | new_lock->refreshing = 0; | |
929 | ||
58e60dd2 NH |
930 | if (start_active_slot(slot)) { |
931 | run_active_slot(slot); | |
acf59575 NH |
932 | if (slot->curl_result == CURLE_OK) { |
933 | ctx.name = xcalloc(10, 1); | |
934 | ctx.len = 0; | |
935 | ctx.cdata = NULL; | |
936 | ctx.userFunc = handle_new_lock_ctx; | |
937 | ctx.userData = new_lock; | |
938 | XML_SetUserData(parser, &ctx); | |
939 | XML_SetElementHandler(parser, xml_start_tag, | |
940 | xml_end_tag); | |
941 | XML_SetCharacterDataHandler(parser, xml_cdata); | |
942 | result = XML_Parse(parser, in_buffer.buffer, | |
943 | in_buffer.posn, 1); | |
944 | free(ctx.name); | |
945 | if (result != XML_STATUS_OK) { | |
946 | fprintf(stderr, "XML error: %s\n", | |
947 | XML_ErrorString( | |
948 | XML_GetErrorCode(parser))); | |
949 | new_lock->timeout = -1; | |
950 | } | |
58e60dd2 NH |
951 | } |
952 | } else { | |
58e60dd2 NH |
953 | fprintf(stderr, "Unable to start request\n"); |
954 | } | |
955 | ||
acf59575 | 956 | curl_slist_free_all(dav_headers); |
0772b9a6 | 957 | free(out_data); |
26349b2e | 958 | free(in_data); |
26349b2e NH |
959 | |
960 | if (new_lock->token == NULL || new_lock->timeout <= 0) { | |
961 | if (new_lock->token != NULL) | |
962 | free(new_lock->token); | |
963 | if (new_lock->owner != NULL) | |
964 | free(new_lock->owner); | |
75187c9d | 965 | free(url); |
26349b2e | 966 | free(new_lock); |
acf59575 NH |
967 | new_lock = NULL; |
968 | } else { | |
969 | new_lock->url = url; | |
970 | new_lock->start_time = time(NULL); | |
26349b2e NH |
971 | } |
972 | ||
26349b2e | 973 | return new_lock; |
58e60dd2 NH |
974 | } |
975 | ||
f4f440a0 | 976 | static int unlock_remote(struct active_lock *lock) |
58e60dd2 NH |
977 | { |
978 | struct active_request_slot *slot; | |
58e60dd2 NH |
979 | char *lock_token_header; |
980 | struct curl_slist *dav_headers = NULL; | |
981 | int rc = 0; | |
982 | ||
26349b2e | 983 | lock_token_header = xmalloc(strlen(lock->token) + 31); |
58e60dd2 | 984 | sprintf(lock_token_header, "Lock-Token: <opaquelocktoken:%s>", |
26349b2e | 985 | lock->token); |
58e60dd2 NH |
986 | dav_headers = curl_slist_append(dav_headers, lock_token_header); |
987 | ||
988 | slot = get_active_slot(); | |
989 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); | |
75187c9d | 990 | curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url); |
58e60dd2 NH |
991 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK); |
992 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); | |
993 | ||
994 | if (start_active_slot(slot)) { | |
995 | run_active_slot(slot); | |
996 | if (slot->curl_result == CURLE_OK) | |
997 | rc = 1; | |
998 | else | |
999 | fprintf(stderr, "Got HTTP error %ld\n", | |
1000 | slot->http_code); | |
1001 | } else { | |
1002 | fprintf(stderr, "Unable to start request\n"); | |
1003 | } | |
1004 | ||
1005 | curl_slist_free_all(dav_headers); | |
1006 | free(lock_token_header); | |
75187c9d NH |
1007 | |
1008 | if (lock->owner != NULL) | |
1009 | free(lock->owner); | |
1010 | free(lock->url); | |
1011 | free(lock->token); | |
1012 | free(lock); | |
58e60dd2 NH |
1013 | |
1014 | return rc; | |
1015 | } | |
1016 | ||
acf59575 | 1017 | static int locking_available(void) |
58e60dd2 NH |
1018 | { |
1019 | struct active_request_slot *slot; | |
1020 | struct buffer in_buffer; | |
1021 | struct buffer out_buffer; | |
1022 | char *in_data; | |
1023 | char *out_data; | |
1024 | XML_Parser parser = XML_ParserCreate(NULL); | |
1025 | enum XML_Status result; | |
58e60dd2 | 1026 | struct curl_slist *dav_headers = NULL; |
acf59575 NH |
1027 | struct xml_ctx ctx; |
1028 | int lock_flags = 0; | |
58e60dd2 NH |
1029 | |
1030 | out_buffer.size = strlen(PROPFIND_REQUEST) + strlen(remote->url) - 2; | |
1031 | out_data = xmalloc(out_buffer.size + 1); | |
1032 | snprintf(out_data, out_buffer.size + 1, PROPFIND_REQUEST, remote->url); | |
1033 | out_buffer.posn = 0; | |
1034 | out_buffer.buffer = out_data; | |
1035 | ||
1036 | in_buffer.size = 4096; | |
1037 | in_data = xmalloc(in_buffer.size); | |
1038 | in_buffer.posn = 0; | |
1039 | in_buffer.buffer = in_data; | |
1040 | ||
1041 | dav_headers = curl_slist_append(dav_headers, "Depth: 0"); | |
1042 | dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml"); | |
1043 | ||
1044 | slot = get_active_slot(); | |
1045 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer); | |
1046 | curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size); | |
1047 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer); | |
1048 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer); | |
29508e1e | 1049 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); |
58e60dd2 NH |
1050 | curl_easy_setopt(slot->curl, CURLOPT_URL, remote->url); |
1051 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1); | |
1052 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND); | |
1053 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); | |
1054 | ||
1055 | if (start_active_slot(slot)) { | |
1056 | run_active_slot(slot); | |
acf59575 NH |
1057 | if (slot->curl_result == CURLE_OK) { |
1058 | ctx.name = xcalloc(10, 1); | |
1059 | ctx.len = 0; | |
1060 | ctx.cdata = NULL; | |
1061 | ctx.userFunc = handle_lockprop_ctx; | |
1062 | ctx.userData = &lock_flags; | |
1063 | XML_SetUserData(parser, &ctx); | |
1064 | XML_SetElementHandler(parser, xml_start_tag, | |
1065 | xml_end_tag); | |
1066 | result = XML_Parse(parser, in_buffer.buffer, | |
1067 | in_buffer.posn, 1); | |
1068 | free(ctx.name); | |
1069 | ||
1070 | if (result != XML_STATUS_OK) { | |
1071 | fprintf(stderr, "XML error: %s\n", | |
1072 | XML_ErrorString( | |
1073 | XML_GetErrorCode(parser))); | |
1074 | lock_flags = 0; | |
1075 | } | |
58e60dd2 | 1076 | } |
58e60dd2 | 1077 | } else { |
acf59575 | 1078 | fprintf(stderr, "Unable to start request\n"); |
58e60dd2 NH |
1079 | } |
1080 | ||
acf59575 NH |
1081 | free(out_data); |
1082 | free(in_buffer.buffer); | |
1083 | curl_slist_free_all(dav_headers); | |
1084 | ||
1085 | return lock_flags; | |
58e60dd2 NH |
1086 | } |
1087 | ||
f4f440a0 | 1088 | static int is_ancestor(unsigned char *sha1, struct commit *commit) |
58e60dd2 NH |
1089 | { |
1090 | struct commit_list *parents; | |
1091 | ||
1092 | if (parse_commit(commit)) | |
1093 | return 0; | |
1094 | parents = commit->parents; | |
1095 | for (; parents; parents = parents->next) { | |
1096 | if (!memcmp(sha1, parents->item->object.sha1, 20)) { | |
1097 | return 1; | |
1098 | } else if (parents->item->object.type == commit_type) { | |
1099 | if (is_ancestor( | |
1100 | sha1, | |
1101 | (struct commit *)&parents->item->object | |
1102 | )) | |
1103 | return 1; | |
1104 | } | |
1105 | } | |
1106 | return 0; | |
1107 | } | |
1108 | ||
f4f440a0 PH |
1109 | static void get_delta(unsigned char *sha1, struct object *obj, |
1110 | struct active_lock *lock) | |
58e60dd2 NH |
1111 | { |
1112 | struct commit *commit; | |
1113 | struct commit_list *parents; | |
1114 | struct tree *tree; | |
1115 | struct tree_entry_list *entry; | |
1116 | ||
1117 | if (sha1 && !memcmp(sha1, obj->sha1, 20)) | |
1118 | return; | |
1119 | ||
1120 | if (aborted) | |
1121 | return; | |
1122 | ||
1123 | if (obj->type == commit_type) { | |
1124 | if (push_verbosely) | |
1125 | fprintf(stderr, "walk %s\n", sha1_to_hex(obj->sha1)); | |
26349b2e | 1126 | add_request(obj->sha1, lock); |
58e60dd2 NH |
1127 | commit = (struct commit *)obj; |
1128 | if (parse_commit(commit)) { | |
1129 | fprintf(stderr, "Error parsing commit %s\n", | |
1130 | sha1_to_hex(obj->sha1)); | |
1131 | aborted = 1; | |
1132 | return; | |
1133 | } | |
1134 | parents = commit->parents; | |
1135 | for (; parents; parents = parents->next) | |
1136 | if (sha1 == NULL || | |
1137 | memcmp(sha1, parents->item->object.sha1, 20)) | |
1138 | get_delta(sha1, &parents->item->object, | |
26349b2e NH |
1139 | lock); |
1140 | get_delta(sha1, &commit->tree->object, lock); | |
58e60dd2 NH |
1141 | } else if (obj->type == tree_type) { |
1142 | if (push_verbosely) | |
1143 | fprintf(stderr, "walk %s\n", sha1_to_hex(obj->sha1)); | |
26349b2e | 1144 | add_request(obj->sha1, lock); |
58e60dd2 NH |
1145 | tree = (struct tree *)obj; |
1146 | if (parse_tree(tree)) { | |
1147 | fprintf(stderr, "Error parsing tree %s\n", | |
1148 | sha1_to_hex(obj->sha1)); | |
1149 | aborted = 1; | |
1150 | return; | |
1151 | } | |
1152 | entry = tree->entries; | |
1153 | tree->entries = NULL; | |
1154 | while (entry) { | |
1155 | struct tree_entry_list *next = entry->next; | |
26349b2e | 1156 | get_delta(sha1, entry->item.any, lock); |
58e60dd2 NH |
1157 | free(entry->name); |
1158 | free(entry); | |
1159 | entry = next; | |
1160 | } | |
1161 | } else if (obj->type == blob_type || obj->type == tag_type) { | |
26349b2e | 1162 | add_request(obj->sha1, lock); |
58e60dd2 NH |
1163 | } |
1164 | } | |
1165 | ||
f4f440a0 | 1166 | static int update_remote(unsigned char *sha1, struct active_lock *lock) |
58e60dd2 NH |
1167 | { |
1168 | struct active_request_slot *slot; | |
58e60dd2 NH |
1169 | char *out_data; |
1170 | char *if_header; | |
1171 | struct buffer out_buffer; | |
1172 | struct curl_slist *dav_headers = NULL; | |
1173 | int i; | |
1174 | ||
26349b2e NH |
1175 | if_header = xmalloc(strlen(lock->token) + 25); |
1176 | sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token); | |
58e60dd2 NH |
1177 | dav_headers = curl_slist_append(dav_headers, if_header); |
1178 | ||
1179 | out_buffer.size = 41; | |
1180 | out_data = xmalloc(out_buffer.size + 1); | |
1181 | i = snprintf(out_data, out_buffer.size + 1, "%s\n", sha1_to_hex(sha1)); | |
1182 | if (i != out_buffer.size) { | |
1183 | fprintf(stderr, "Unable to initialize PUT request body\n"); | |
1184 | return 0; | |
1185 | } | |
1186 | out_buffer.posn = 0; | |
1187 | out_buffer.buffer = out_data; | |
1188 | ||
1189 | slot = get_active_slot(); | |
1190 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer); | |
1191 | curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size); | |
1192 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer); | |
1193 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null); | |
1194 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT); | |
1195 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); | |
1196 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1); | |
1197 | curl_easy_setopt(slot->curl, CURLOPT_PUT, 1); | |
75187c9d | 1198 | curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url); |
58e60dd2 NH |
1199 | |
1200 | if (start_active_slot(slot)) { | |
1201 | run_active_slot(slot); | |
1202 | free(out_data); | |
1203 | free(if_header); | |
58e60dd2 NH |
1204 | if (slot->curl_result != CURLE_OK) { |
1205 | fprintf(stderr, | |
1206 | "PUT error: curl result=%d, HTTP code=%ld\n", | |
1207 | slot->curl_result, slot->http_code); | |
1208 | /* We should attempt recovery? */ | |
1209 | return 0; | |
1210 | } | |
1211 | } else { | |
1212 | free(out_data); | |
1213 | free(if_header); | |
58e60dd2 NH |
1214 | fprintf(stderr, "Unable to start PUT request\n"); |
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | return 1; | |
1219 | } | |
1220 | ||
1221 | int main(int argc, char **argv) | |
1222 | { | |
58e60dd2 NH |
1223 | struct transfer_request *request; |
1224 | struct transfer_request *next_request; | |
1225 | int nr_refspec = 0; | |
1226 | char **refspec = NULL; | |
1227 | int do_remote_update; | |
1228 | int new_branch; | |
1229 | int force_this; | |
1230 | char *local_ref; | |
1231 | unsigned char local_sha1[20]; | |
1232 | struct object *local_object = NULL; | |
1233 | char *remote_ref = NULL; | |
1234 | unsigned char remote_sha1[20]; | |
26349b2e | 1235 | struct active_lock *remote_lock; |
58e60dd2 | 1236 | char *remote_path = NULL; |
58e60dd2 NH |
1237 | int rc = 0; |
1238 | int i; | |
1239 | ||
5a327713 | 1240 | setup_git_directory(); |
58e60dd2 NH |
1241 | setup_ident(); |
1242 | ||
1243 | remote = xmalloc(sizeof(*remote)); | |
1244 | remote->url = NULL; | |
1245 | remote->packs = NULL; | |
1246 | ||
1247 | argv++; | |
1248 | for (i = 1; i < argc; i++, argv++) { | |
1249 | char *arg = *argv; | |
1250 | ||
1251 | if (*arg == '-') { | |
1252 | if (!strcmp(arg, "--complete")) { | |
1253 | push_all = 1; | |
1254 | continue; | |
1255 | } | |
1256 | if (!strcmp(arg, "--force")) { | |
1257 | force_all = 1; | |
1258 | continue; | |
1259 | } | |
1260 | if (!strcmp(arg, "--verbose")) { | |
1261 | push_verbosely = 1; | |
1262 | continue; | |
1263 | } | |
1264 | usage(http_push_usage); | |
1265 | } | |
1266 | if (!remote->url) { | |
1267 | remote->url = arg; | |
1268 | continue; | |
1269 | } | |
1270 | refspec = argv; | |
1271 | nr_refspec = argc - i; | |
1272 | break; | |
1273 | } | |
1274 | ||
3e9fabc8 NH |
1275 | if (!remote->url) |
1276 | usage(http_push_usage); | |
1277 | ||
0dd276b8 NH |
1278 | memset(remote_dir_exists, 0, 256); |
1279 | ||
29508e1e | 1280 | http_init(); |
58e60dd2 NH |
1281 | |
1282 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); | |
1283 | default_headers = curl_slist_append(default_headers, "Range:"); | |
1284 | default_headers = curl_slist_append(default_headers, "Destination:"); | |
1285 | default_headers = curl_slist_append(default_headers, "If:"); | |
1286 | default_headers = curl_slist_append(default_headers, | |
1287 | "Pragma: no-cache"); | |
1288 | ||
58e60dd2 | 1289 | /* Verify DAV compliance/lock support */ |
acf59575 | 1290 | if (!locking_available()) { |
58e60dd2 NH |
1291 | fprintf(stderr, "Error: no DAV locking support on remote repo %s\n", remote->url); |
1292 | rc = 1; | |
1293 | goto cleanup; | |
1294 | } | |
1295 | ||
1296 | /* Process each refspec */ | |
1297 | for (i = 0; i < nr_refspec; i++) { | |
1298 | char *ep; | |
1299 | force_this = 0; | |
1300 | do_remote_update = 0; | |
1301 | new_branch = 0; | |
1302 | local_ref = refspec[i]; | |
1303 | if (*local_ref == '+') { | |
1304 | force_this = 1; | |
1305 | local_ref++; | |
1306 | } | |
1307 | ep = strchr(local_ref, ':'); | |
1308 | if (ep) { | |
1309 | remote_ref = ep + 1; | |
1310 | *ep = 0; | |
1311 | } | |
1312 | else | |
1313 | remote_ref = local_ref; | |
1314 | ||
1315 | /* Lock remote branch ref */ | |
1316 | if (remote_path) | |
1317 | free(remote_path); | |
1318 | remote_path = xmalloc(strlen(remote_ref) + 12); | |
1319 | sprintf(remote_path, "refs/heads/%s", remote_ref); | |
75187c9d | 1320 | remote_lock = lock_remote(remote_path, LOCK_TIME); |
58e60dd2 NH |
1321 | if (remote_lock == NULL) { |
1322 | fprintf(stderr, "Unable to lock remote branch %s\n", | |
1323 | remote_ref); | |
1324 | rc = 1; | |
1325 | continue; | |
1326 | } | |
1327 | ||
1328 | /* Resolve local and remote refs */ | |
1329 | if (fetch_ref(remote_ref, remote_sha1) != 0) { | |
1330 | fprintf(stderr, | |
1331 | "Remote branch %s does not exist on %s\n", | |
1332 | remote_ref, remote->url); | |
1333 | new_branch = 1; | |
1334 | } | |
1335 | if (get_sha1(local_ref, local_sha1) != 0) { | |
1336 | fprintf(stderr, "Error resolving local branch %s\n", | |
1337 | local_ref); | |
1338 | rc = 1; | |
1339 | goto unlock; | |
1340 | } | |
1341 | ||
1342 | /* Find relationship between local and remote */ | |
1343 | local_object = parse_object(local_sha1); | |
1344 | if (!local_object) { | |
1345 | fprintf(stderr, "Unable to parse local object %s\n", | |
1346 | sha1_to_hex(local_sha1)); | |
1347 | rc = 1; | |
1348 | goto unlock; | |
1349 | } else if (new_branch) { | |
1350 | do_remote_update = 1; | |
1351 | } else { | |
1352 | if (!memcmp(local_sha1, remote_sha1, 20)) { | |
1353 | fprintf(stderr, | |
1354 | "* %s: same as branch '%s' of %s\n", | |
1355 | local_ref, remote_ref, remote->url); | |
1356 | } else if (is_ancestor(remote_sha1, | |
1357 | (struct commit *)local_object)) { | |
1358 | fprintf(stderr, | |
1359 | "Remote %s will fast-forward to local %s\n", | |
1360 | remote_ref, local_ref); | |
1361 | do_remote_update = 1; | |
1362 | } else if (force_all || force_this) { | |
1363 | fprintf(stderr, | |
1364 | "* %s on %s does not fast forward to local branch '%s', overwriting\n", | |
1365 | remote_ref, remote->url, local_ref); | |
1366 | do_remote_update = 1; | |
1367 | } else { | |
1368 | fprintf(stderr, | |
1369 | "* %s on %s does not fast forward to local branch '%s'\n", | |
1370 | remote_ref, remote->url, local_ref); | |
1371 | rc = 1; | |
1372 | goto unlock; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | /* Generate and check list of required objects */ | |
1377 | pushing = 0; | |
1378 | if (do_remote_update || push_all) | |
1379 | fetch_indices(); | |
1380 | get_delta(push_all ? NULL : remote_sha1, | |
1381 | local_object, remote_lock); | |
29508e1e | 1382 | finish_all_active_slots(); |
58e60dd2 NH |
1383 | |
1384 | /* Push missing objects to remote, this would be a | |
1385 | convenient time to pack them first if appropriate. */ | |
1386 | pushing = 1; | |
29508e1e NH |
1387 | fill_active_slots(); |
1388 | finish_all_active_slots(); | |
58e60dd2 NH |
1389 | |
1390 | /* Update the remote branch if all went well */ | |
1391 | if (do_remote_update) { | |
75187c9d | 1392 | if (!aborted && update_remote(local_sha1, |
58e60dd2 NH |
1393 | remote_lock)) { |
1394 | fprintf(stderr, "%s remote branch %s\n", | |
1395 | new_branch ? "Created" : "Updated", | |
1396 | remote_ref); | |
1397 | } else { | |
1398 | fprintf(stderr, | |
1399 | "Unable to %s remote branch %s\n", | |
1400 | new_branch ? "create" : "update", | |
1401 | remote_ref); | |
1402 | rc = 1; | |
1403 | goto unlock; | |
1404 | } | |
1405 | } | |
1406 | ||
1407 | unlock: | |
75187c9d | 1408 | unlock_remote(remote_lock); |
58e60dd2 | 1409 | free(remote_path); |
58e60dd2 NH |
1410 | } |
1411 | ||
1412 | cleanup: | |
1413 | free(remote); | |
1414 | ||
1415 | curl_slist_free_all(no_pragma_header); | |
1416 | curl_slist_free_all(default_headers); | |
1417 | ||
29508e1e | 1418 | http_cleanup(); |
58e60dd2 NH |
1419 | |
1420 | request = request_queue_head; | |
1421 | while (request != NULL) { | |
1422 | next_request = request->next; | |
1423 | release_request(request); | |
58e60dd2 NH |
1424 | request = next_request; |
1425 | } | |
1426 | ||
58e60dd2 NH |
1427 | return rc; |
1428 | } |