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Commit | Line | Data |
---|---|---|
6eb7ed54 DB |
1 | #include "cache.h" |
2 | #include "commit.h" | |
30ae764b | 3 | #include "walker.h" |
29508e1e | 4 | #include "http.h" |
7baa3e86 | 5 | |
9cba13ca | 6 | struct alt_base { |
2afea3bc | 7 | char *base; |
b3661567 DB |
8 | int got_indices; |
9 | struct packed_git *packs; | |
10 | struct alt_base *next; | |
11 | }; | |
12 | ||
e388ab74 | 13 | enum object_request_state { |
1d389ab6 NH |
14 | WAITING, |
15 | ABORTED, | |
16 | ACTIVE, | |
4b05548f | 17 | COMPLETE |
1d389ab6 | 18 | }; |
6eb7ed54 | 19 | |
9cba13ca | 20 | struct object_request { |
30ae764b | 21 | struct walker *walker; |
1d389ab6 NH |
22 | unsigned char sha1[20]; |
23 | struct alt_base *repo; | |
e388ab74 | 24 | enum object_request_state state; |
5424bc55 | 25 | struct http_object_request *req; |
e388ab74 | 26 | struct object_request *next; |
1d389ab6 NH |
27 | }; |
28 | ||
e388ab74 | 29 | struct alternates_request { |
30ae764b | 30 | struct walker *walker; |
8e29f6a0 | 31 | const char *base; |
acc075a8 | 32 | char *url; |
028c2976 | 33 | struct strbuf *buffer; |
acc075a8 NH |
34 | struct active_request_slot *slot; |
35 | int http_specific; | |
36 | }; | |
37 | ||
30ae764b DB |
38 | struct walker_data { |
39 | const char *url; | |
40 | int got_alternates; | |
41 | struct alt_base *alt; | |
30ae764b DB |
42 | }; |
43 | ||
96f1e58f | 44 | static struct object_request *object_queue_head; |
bc8f2652 | 45 | |
30ae764b | 46 | static void fetch_alternates(struct walker *walker, const char *base); |
1d389ab6 | 47 | |
29508e1e | 48 | static void process_object_response(void *callback_data); |
1d389ab6 | 49 | |
30ae764b DB |
50 | static void start_object_request(struct walker *walker, |
51 | struct object_request *obj_req) | |
1d389ab6 | 52 | { |
1d389ab6 | 53 | struct active_request_slot *slot; |
5424bc55 | 54 | struct http_object_request *req; |
1d389ab6 | 55 | |
5424bc55 TRC |
56 | req = new_http_object_request(obj_req->repo->base, obj_req->sha1); |
57 | if (req == NULL) { | |
e388ab74 | 58 | obj_req->state = ABORTED; |
1d389ab6 NH |
59 | return; |
60 | } | |
5424bc55 | 61 | obj_req->req = req; |
1d389ab6 | 62 | |
5424bc55 | 63 | slot = req->slot; |
29508e1e | 64 | slot->callback_func = process_object_response; |
e388ab74 | 65 | slot->callback_data = obj_req; |
1d389ab6 | 66 | |
a7a8d378 | 67 | /* Try to get the request started, abort the request on error */ |
e388ab74 | 68 | obj_req->state = ACTIVE; |
1d389ab6 | 69 | if (!start_active_slot(slot)) { |
e388ab74 | 70 | obj_req->state = ABORTED; |
5424bc55 | 71 | release_http_object_request(req); |
e388ab74 | 72 | return; |
1d389ab6 | 73 | } |
1d389ab6 NH |
74 | } |
75 | ||
e388ab74 | 76 | static void finish_object_request(struct object_request *obj_req) |
1d389ab6 | 77 | { |
5424bc55 | 78 | if (finish_http_object_request(obj_req->req)) |
1d389ab6 | 79 | return; |
1d389ab6 | 80 | |
5424bc55 | 81 | if (obj_req->req->rename == 0) |
30ae764b | 82 | walker_say(obj_req->walker, "got %s\n", sha1_to_hex(obj_req->sha1)); |
1d389ab6 NH |
83 | } |
84 | ||
29508e1e NH |
85 | static void process_object_response(void *callback_data) |
86 | { | |
e388ab74 NH |
87 | struct object_request *obj_req = |
88 | (struct object_request *)callback_data; | |
30ae764b DB |
89 | struct walker *walker = obj_req->walker; |
90 | struct walker_data *data = walker->data; | |
91 | struct alt_base *alt = data->alt; | |
29508e1e | 92 | |
5424bc55 | 93 | process_http_object_request(obj_req->req); |
e388ab74 | 94 | obj_req->state = COMPLETE; |
29508e1e NH |
95 | |
96 | /* Use alternates if necessary */ | |
5424bc55 | 97 | if (missing_target(obj_req->req)) { |
30ae764b | 98 | fetch_alternates(walker, alt->base); |
e388ab74 NH |
99 | if (obj_req->repo->next != NULL) { |
100 | obj_req->repo = | |
101 | obj_req->repo->next; | |
5424bc55 | 102 | release_http_object_request(obj_req->req); |
30ae764b | 103 | start_object_request(walker, obj_req); |
29508e1e NH |
104 | return; |
105 | } | |
106 | } | |
107 | ||
e388ab74 | 108 | finish_object_request(obj_req); |
29508e1e NH |
109 | } |
110 | ||
e388ab74 | 111 | static void release_object_request(struct object_request *obj_req) |
1d389ab6 | 112 | { |
e388ab74 | 113 | struct object_request *entry = object_queue_head; |
1d389ab6 | 114 | |
5424bc55 TRC |
115 | if (obj_req->req !=NULL && obj_req->req->localfile != -1) |
116 | error("fd leakage in release: %d", obj_req->req->localfile); | |
e388ab74 NH |
117 | if (obj_req == object_queue_head) { |
118 | object_queue_head = obj_req->next; | |
1d389ab6 | 119 | } else { |
e388ab74 | 120 | while (entry->next != NULL && entry->next != obj_req) |
1d389ab6 | 121 | entry = entry->next; |
e388ab74 | 122 | if (entry->next == obj_req) |
1d389ab6 NH |
123 | entry->next = entry->next->next; |
124 | } | |
125 | ||
e388ab74 | 126 | free(obj_req); |
1d389ab6 NH |
127 | } |
128 | ||
a7a8d378 | 129 | #ifdef USE_CURL_MULTI |
30ae764b | 130 | static int fill_active_slot(struct walker *walker) |
1d389ab6 | 131 | { |
45c17412 | 132 | struct object_request *obj_req; |
1d389ab6 | 133 | |
45c17412 | 134 | for (obj_req = object_queue_head; obj_req; obj_req = obj_req->next) { |
e388ab74 NH |
135 | if (obj_req->state == WAITING) { |
136 | if (has_sha1_file(obj_req->sha1)) | |
09db444f | 137 | obj_req->state = COMPLETE; |
45c17412 | 138 | else { |
30ae764b | 139 | start_object_request(walker, obj_req); |
45c17412 DB |
140 | return 1; |
141 | } | |
f1a906a3 | 142 | } |
8fcf7f9a | 143 | } |
45c17412 | 144 | return 0; |
1d389ab6 | 145 | } |
a7a8d378 | 146 | #endif |
1d389ab6 | 147 | |
30ae764b | 148 | static void prefetch(struct walker *walker, unsigned char *sha1) |
1d389ab6 | 149 | { |
e388ab74 NH |
150 | struct object_request *newreq; |
151 | struct object_request *tail; | |
30ae764b | 152 | struct walker_data *data = walker->data; |
1d389ab6 NH |
153 | |
154 | newreq = xmalloc(sizeof(*newreq)); | |
30ae764b | 155 | newreq->walker = walker; |
e702496e | 156 | hashcpy(newreq->sha1, sha1); |
30ae764b | 157 | newreq->repo = data->alt; |
1d389ab6 | 158 | newreq->state = WAITING; |
5424bc55 | 159 | newreq->req = NULL; |
1d389ab6 NH |
160 | newreq->next = NULL; |
161 | ||
e9176745 TRC |
162 | http_is_verbose = walker->get_verbosely; |
163 | ||
e388ab74 NH |
164 | if (object_queue_head == NULL) { |
165 | object_queue_head = newreq; | |
1d389ab6 | 166 | } else { |
e388ab74 | 167 | tail = object_queue_head; |
4c42aa1a | 168 | while (tail->next != NULL) |
1d389ab6 | 169 | tail = tail->next; |
1d389ab6 NH |
170 | tail->next = newreq; |
171 | } | |
29508e1e | 172 | |
a7a8d378 | 173 | #ifdef USE_CURL_MULTI |
29508e1e NH |
174 | fill_active_slots(); |
175 | step_active_slots(); | |
a7a8d378 | 176 | #endif |
1d389ab6 NH |
177 | } |
178 | ||
e388ab74 | 179 | static void process_alternates_response(void *callback_data) |
b3661567 | 180 | { |
e388ab74 NH |
181 | struct alternates_request *alt_req = |
182 | (struct alternates_request *)callback_data; | |
30ae764b DB |
183 | struct walker *walker = alt_req->walker; |
184 | struct walker_data *cdata = walker->data; | |
acc075a8 | 185 | struct active_request_slot *slot = alt_req->slot; |
30ae764b | 186 | struct alt_base *tail = cdata->alt; |
8e29f6a0 | 187 | const char *base = alt_req->base; |
a04ff3ec | 188 | const char null_byte = '\0'; |
acc075a8 NH |
189 | char *data; |
190 | int i = 0; | |
1d389ab6 | 191 | |
acc075a8 NH |
192 | if (alt_req->http_specific) { |
193 | if (slot->curl_result != CURLE_OK || | |
028c2976 | 194 | !alt_req->buffer->len) { |
acc075a8 NH |
195 | |
196 | /* Try reusing the slot to get non-http alternates */ | |
197 | alt_req->http_specific = 0; | |
198 | sprintf(alt_req->url, "%s/objects/info/alternates", | |
199 | base); | |
200 | curl_easy_setopt(slot->curl, CURLOPT_URL, | |
201 | alt_req->url); | |
202 | active_requests++; | |
203 | slot->in_use = 1; | |
c9826473 NH |
204 | if (slot->finished != NULL) |
205 | (*slot->finished) = 0; | |
a3f583cb | 206 | if (!start_active_slot(slot)) { |
30ae764b | 207 | cdata->got_alternates = -1; |
29508e1e | 208 | slot->in_use = 0; |
c9826473 NH |
209 | if (slot->finished != NULL) |
210 | (*slot->finished) = 1; | |
1d389ab6 | 211 | } |
a3f583cb | 212 | return; |
b3661567 | 213 | } |
acc075a8 | 214 | } else if (slot->curl_result != CURLE_OK) { |
be4a015b | 215 | if (!missing_target(slot)) { |
30ae764b | 216 | cdata->got_alternates = -1; |
acc075a8 NH |
217 | return; |
218 | } | |
b3661567 DB |
219 | } |
220 | ||
a04ff3ec | 221 | fwrite_buffer((char *)&null_byte, 1, 1, alt_req->buffer); |
028c2976 MH |
222 | alt_req->buffer->len--; |
223 | data = alt_req->buffer->buf; | |
1b0c1e67 | 224 | |
028c2976 | 225 | while (i < alt_req->buffer->len) { |
b3661567 | 226 | int posn = i; |
028c2976 | 227 | while (posn < alt_req->buffer->len && data[posn] != '\n') |
b3661567 DB |
228 | posn++; |
229 | if (data[posn] == '\n') { | |
1b0c1e67 DB |
230 | int okay = 0; |
231 | int serverlen = 0; | |
232 | struct alt_base *newalt; | |
233 | char *target = NULL; | |
b3661567 | 234 | if (data[i] == '/') { |
4c42aa1a TRC |
235 | /* |
236 | * This counts | |
5df1e0d0 JH |
237 | * http://git.host/pub/scm/linux.git/ |
238 | * -----------here^ | |
239 | * so memcpy(dst, base, serverlen) will | |
240 | * copy up to "...git.host". | |
241 | */ | |
242 | const char *colon_ss = strstr(base,"://"); | |
243 | if (colon_ss) { | |
244 | serverlen = (strchr(colon_ss + 3, '/') | |
245 | - base); | |
246 | okay = 1; | |
247 | } | |
1b0c1e67 | 248 | } else if (!memcmp(data + i, "../", 3)) { |
4c42aa1a TRC |
249 | /* |
250 | * Relative URL; chop the corresponding | |
5df1e0d0 JH |
251 | * number of subpath from base (and ../ |
252 | * from data), and concatenate the result. | |
253 | * | |
254 | * The code first drops ../ from data, and | |
255 | * then drops one ../ from data and one path | |
256 | * from base. IOW, one extra ../ is dropped | |
257 | * from data than path is dropped from base. | |
258 | * | |
259 | * This is not wrong. The alternate in | |
260 | * http://git.host/pub/scm/linux.git/ | |
261 | * to borrow from | |
262 | * http://git.host/pub/scm/linus.git/ | |
263 | * is ../../linus.git/objects/. You need | |
264 | * two ../../ to borrow from your direct | |
265 | * neighbour. | |
266 | */ | |
1b0c1e67 DB |
267 | i += 3; |
268 | serverlen = strlen(base); | |
8fcf7f9a | 269 | while (i + 2 < posn && |
1b0c1e67 DB |
270 | !memcmp(data + i, "../", 3)) { |
271 | do { | |
272 | serverlen--; | |
273 | } while (serverlen && | |
274 | base[serverlen - 1] != '/'); | |
275 | i += 3; | |
276 | } | |
a9486b02 | 277 | /* If the server got removed, give up. */ |
8fcf7f9a | 278 | okay = strchr(base, ':') - base + 3 < |
4c42aa1a | 279 | serverlen; |
acc075a8 | 280 | } else if (alt_req->http_specific) { |
1b0c1e67 DB |
281 | char *colon = strchr(data + i, ':'); |
282 | char *slash = strchr(data + i, '/'); | |
283 | if (colon && slash && colon < data + posn && | |
284 | slash < data + posn && colon < slash) { | |
285 | okay = 1; | |
286 | } | |
287 | } | |
5df1e0d0 | 288 | /* skip "objects\n" at end */ |
1b0c1e67 DB |
289 | if (okay) { |
290 | target = xmalloc(serverlen + posn - i - 6); | |
5df1e0d0 JH |
291 | memcpy(target, base, serverlen); |
292 | memcpy(target + serverlen, data + i, | |
293 | posn - i - 7); | |
294 | target[serverlen + posn - i - 7] = 0; | |
30ae764b | 295 | if (walker->get_verbosely) |
8fcf7f9a | 296 | fprintf(stderr, |
b3661567 DB |
297 | "Also look at %s\n", target); |
298 | newalt = xmalloc(sizeof(*newalt)); | |
1d389ab6 | 299 | newalt->next = NULL; |
b3661567 DB |
300 | newalt->base = target; |
301 | newalt->got_indices = 0; | |
302 | newalt->packs = NULL; | |
8d9fbe57 | 303 | |
1d389ab6 NH |
304 | while (tail->next != NULL) |
305 | tail = tail->next; | |
306 | tail->next = newalt; | |
b3661567 DB |
307 | } |
308 | } | |
309 | i = posn + 1; | |
310 | } | |
bc8f2652 | 311 | |
30ae764b | 312 | cdata->got_alternates = 1; |
acc075a8 NH |
313 | } |
314 | ||
30ae764b | 315 | static void fetch_alternates(struct walker *walker, const char *base) |
acc075a8 | 316 | { |
028c2976 | 317 | struct strbuf buffer = STRBUF_INIT; |
acc075a8 | 318 | char *url; |
acc075a8 | 319 | struct active_request_slot *slot; |
cb754fdf | 320 | struct alternates_request alt_req; |
30ae764b | 321 | struct walker_data *cdata = walker->data; |
acc075a8 | 322 | |
4c42aa1a TRC |
323 | /* |
324 | * If another request has already started fetching alternates, | |
325 | * wait for them to arrive and return to processing this request's | |
326 | * curl message | |
327 | */ | |
29508e1e | 328 | #ifdef USE_CURL_MULTI |
30ae764b | 329 | while (cdata->got_alternates == 0) { |
29508e1e | 330 | step_active_slots(); |
acc075a8 | 331 | } |
29508e1e | 332 | #endif |
acc075a8 NH |
333 | |
334 | /* Nothing to do if they've already been fetched */ | |
30ae764b | 335 | if (cdata->got_alternates == 1) |
acc075a8 NH |
336 | return; |
337 | ||
338 | /* Start the fetch */ | |
30ae764b | 339 | cdata->got_alternates = 0; |
acc075a8 | 340 | |
30ae764b | 341 | if (walker->get_verbosely) |
acc075a8 | 342 | fprintf(stderr, "Getting alternates list for %s\n", base); |
8fcf7f9a | 343 | |
acc075a8 NH |
344 | url = xmalloc(strlen(base) + 31); |
345 | sprintf(url, "%s/objects/info/http-alternates", base); | |
346 | ||
4c42aa1a TRC |
347 | /* |
348 | * Use a callback to process the result, since another request | |
349 | * may fail and need to have alternates loaded before continuing | |
350 | */ | |
acc075a8 | 351 | slot = get_active_slot(); |
e388ab74 | 352 | slot->callback_func = process_alternates_response; |
30ae764b | 353 | alt_req.walker = walker; |
acc075a8 NH |
354 | slot->callback_data = &alt_req; |
355 | ||
356 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
29508e1e | 357 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); |
acc075a8 NH |
358 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
359 | ||
360 | alt_req.base = base; | |
361 | alt_req.url = url; | |
362 | alt_req.buffer = &buffer; | |
363 | alt_req.http_specific = 1; | |
364 | alt_req.slot = slot; | |
365 | ||
366 | if (start_active_slot(slot)) | |
367 | run_active_slot(slot); | |
368 | else | |
30ae764b | 369 | cdata->got_alternates = -1; |
acc075a8 | 370 | |
028c2976 | 371 | strbuf_release(&buffer); |
acc075a8 | 372 | free(url); |
b3661567 DB |
373 | } |
374 | ||
30ae764b | 375 | static int fetch_indices(struct walker *walker, struct alt_base *repo) |
182005b9 | 376 | { |
b8caac2b | 377 | int ret; |
1d389ab6 | 378 | |
b3661567 | 379 | if (repo->got_indices) |
182005b9 DB |
380 | return 0; |
381 | ||
30ae764b | 382 | if (walker->get_verbosely) |
6fd72e39 | 383 | fprintf(stderr, "Getting pack list for %s\n", repo->base); |
8fcf7f9a | 384 | |
b8caac2b TRC |
385 | switch (http_get_info_packs(repo->base, &repo->packs)) { |
386 | case HTTP_OK: | |
387 | case HTTP_MISSING_TARGET: | |
388 | repo->got_indices = 1; | |
389 | ret = 0; | |
390 | break; | |
391 | default: | |
5e3a7691 | 392 | repo->got_indices = 0; |
b8caac2b | 393 | ret = -1; |
b3661567 | 394 | } |
182005b9 | 395 | |
3a462bc9 | 396 | return ret; |
182005b9 DB |
397 | } |
398 | ||
07c19e72 | 399 | static int http_fetch_pack(struct walker *walker, struct alt_base *repo, unsigned char *sha1) |
182005b9 | 400 | { |
182005b9 | 401 | struct packed_git *target; |
49a0f240 | 402 | int ret; |
cb754fdf | 403 | struct slot_results results; |
2264dfa5 | 404 | struct http_pack_request *preq; |
182005b9 | 405 | |
30ae764b | 406 | if (fetch_indices(walker, repo)) |
182005b9 | 407 | return -1; |
b3661567 | 408 | target = find_sha1_pack(sha1, repo->packs); |
182005b9 | 409 | if (!target) |
b3661567 | 410 | return -1; |
182005b9 | 411 | |
30ae764b | 412 | if (walker->get_verbosely) { |
182005b9 DB |
413 | fprintf(stderr, "Getting pack %s\n", |
414 | sha1_to_hex(target->sha1)); | |
415 | fprintf(stderr, " which contains %s\n", | |
416 | sha1_to_hex(sha1)); | |
417 | } | |
418 | ||
2264dfa5 TRC |
419 | preq = new_http_pack_request(target, repo->base); |
420 | if (preq == NULL) | |
421 | goto abort; | |
422 | preq->lst = &repo->packs; | |
423 | preq->slot->results = &results; | |
182005b9 | 424 | |
2264dfa5 TRC |
425 | if (start_active_slot(preq->slot)) { |
426 | run_active_slot(preq->slot); | |
c8568e13 | 427 | if (results.curl_result != CURLE_OK) { |
2264dfa5 TRC |
428 | error("Unable to get pack file %s\n%s", preq->url, |
429 | curl_errorstr); | |
430 | goto abort; | |
1d389ab6 NH |
431 | } |
432 | } else { | |
2264dfa5 TRC |
433 | error("Unable to start request"); |
434 | goto abort; | |
182005b9 DB |
435 | } |
436 | ||
2264dfa5 TRC |
437 | ret = finish_http_pack_request(preq); |
438 | release_http_pack_request(preq); | |
49a0f240 | 439 | if (ret) |
b721e01f | 440 | return ret; |
49a0f240 | 441 | |
182005b9 | 442 | return 0; |
2264dfa5 TRC |
443 | |
444 | abort: | |
445 | return -1; | |
182005b9 DB |
446 | } |
447 | ||
53f31389 MW |
448 | static void abort_object_request(struct object_request *obj_req) |
449 | { | |
53f31389 MW |
450 | release_object_request(obj_req); |
451 | } | |
452 | ||
30ae764b | 453 | static int fetch_object(struct walker *walker, struct alt_base *repo, unsigned char *sha1) |
6eb7ed54 DB |
454 | { |
455 | char *hex = sha1_to_hex(sha1); | |
29508e1e | 456 | int ret = 0; |
e388ab74 | 457 | struct object_request *obj_req = object_queue_head; |
5424bc55 | 458 | struct http_object_request *req; |
1d389ab6 | 459 | |
a89fccd2 | 460 | while (obj_req != NULL && hashcmp(obj_req->sha1, sha1)) |
e388ab74 NH |
461 | obj_req = obj_req->next; |
462 | if (obj_req == NULL) | |
1d389ab6 NH |
463 | return error("Couldn't find request for %s in the queue", hex); |
464 | ||
e388ab74 | 465 | if (has_sha1_file(obj_req->sha1)) { |
5424bc55 TRC |
466 | if (obj_req->req != NULL) |
467 | abort_http_object_request(obj_req->req); | |
53f31389 | 468 | abort_object_request(obj_req); |
11f0dafe NH |
469 | return 0; |
470 | } | |
471 | ||
a7a8d378 | 472 | #ifdef USE_CURL_MULTI |
4c42aa1a | 473 | while (obj_req->state == WAITING) |
29508e1e | 474 | step_active_slots(); |
a7a8d378 | 475 | #else |
30ae764b | 476 | start_object_request(walker, obj_req); |
a7a8d378 | 477 | #endif |
6eb7ed54 | 478 | |
5424bc55 TRC |
479 | /* |
480 | * obj_req->req might change when fetching alternates in the callback | |
481 | * process_object_response; therefore, the "shortcut" variable, req, | |
482 | * is used only after we're done with slots. | |
483 | */ | |
4c42aa1a | 484 | while (obj_req->state == ACTIVE) |
5424bc55 TRC |
485 | run_active_slot(obj_req->req->slot); |
486 | ||
487 | req = obj_req->req; | |
4c42aa1a | 488 | |
5424bc55 TRC |
489 | if (req->localfile != -1) { |
490 | close(req->localfile); | |
491 | req->localfile = -1; | |
313c4714 | 492 | } |
6eb7ed54 | 493 | |
e388ab74 | 494 | if (obj_req->state == ABORTED) { |
29508e1e | 495 | ret = error("Request for %s aborted", hex); |
5424bc55 TRC |
496 | } else if (req->curl_result != CURLE_OK && |
497 | req->http_code != 416) { | |
498 | if (missing_target(req)) | |
e2029eb9 PB |
499 | ret = -1; /* Be silent, it is probably in a pack. */ |
500 | else | |
501 | ret = error("%s (curl_result = %d, http_code = %ld, sha1 = %s)", | |
5424bc55 TRC |
502 | req->errorstr, req->curl_result, |
503 | req->http_code, hex); | |
504 | } else if (req->zret != Z_STREAM_END) { | |
30ae764b | 505 | walker->corrupt_object_found++; |
5424bc55 TRC |
506 | ret = error("File %s (%s) corrupt", hex, req->url); |
507 | } else if (hashcmp(obj_req->sha1, req->real_sha1)) { | |
bd2afde8 | 508 | ret = error("File %s has bad hash", hex); |
5424bc55 | 509 | } else if (req->rename < 0) { |
7b934ec0 | 510 | ret = error("unable to write sha1 filename %s", |
0da8b2e7 | 511 | sha1_file_name(req->sha1)); |
6eb7ed54 | 512 | } |
49a0f240 | 513 | |
5424bc55 | 514 | release_http_object_request(req); |
e388ab74 | 515 | release_object_request(obj_req); |
29508e1e | 516 | return ret; |
6eb7ed54 DB |
517 | } |
518 | ||
30ae764b | 519 | static int fetch(struct walker *walker, unsigned char *sha1) |
b3661567 | 520 | { |
30ae764b DB |
521 | struct walker_data *data = walker->data; |
522 | struct alt_base *altbase = data->alt; | |
1d389ab6 | 523 | |
30ae764b | 524 | if (!fetch_object(walker, altbase, sha1)) |
1d389ab6 | 525 | return 0; |
b3661567 | 526 | while (altbase) { |
07c19e72 | 527 | if (!http_fetch_pack(walker, altbase, sha1)) |
b3661567 | 528 | return 0; |
30ae764b | 529 | fetch_alternates(walker, data->alt->base); |
b3661567 DB |
530 | altbase = altbase->next; |
531 | } | |
bd2afde8 | 532 | return error("Unable to find %s under %s", sha1_to_hex(sha1), |
30ae764b | 533 | data->alt->base); |
b3661567 DB |
534 | } |
535 | ||
c13b2633 | 536 | static int fetch_ref(struct walker *walker, struct ref *ref) |
cd541a68 | 537 | { |
30ae764b | 538 | struct walker_data *data = walker->data; |
c13b2633 | 539 | return http_fetch_ref(data->alt->base, ref); |
cd541a68 DB |
540 | } |
541 | ||
30ae764b DB |
542 | static void cleanup(struct walker *walker) |
543 | { | |
09ae9aca TRC |
544 | struct walker_data *data = walker->data; |
545 | struct alt_base *alt, *alt_next; | |
546 | ||
547 | if (data) { | |
548 | alt = data->alt; | |
549 | while (alt) { | |
550 | alt_next = alt->next; | |
551 | ||
552 | free(alt->base); | |
553 | free(alt); | |
554 | ||
555 | alt = alt_next; | |
556 | } | |
557 | free(data); | |
558 | walker->data = NULL; | |
559 | } | |
30ae764b DB |
560 | } |
561 | ||
888692b7 | 562 | struct walker *get_http_walker(const char *url) |
6eb7ed54 | 563 | { |
9c880b3e | 564 | char *s; |
30ae764b DB |
565 | struct walker_data *data = xmalloc(sizeof(struct walker_data)); |
566 | struct walker *walker = xmalloc(sizeof(struct walker)); | |
6eb7ed54 | 567 | |
30ae764b DB |
568 | data->alt = xmalloc(sizeof(*data->alt)); |
569 | data->alt->base = xmalloc(strlen(url) + 1); | |
570 | strcpy(data->alt->base, url); | |
571 | for (s = data->alt->base + strlen(data->alt->base) - 1; *s == '/'; --s) | |
9c880b3e | 572 | *s = 0; |
6eb7ed54 | 573 | |
30ae764b DB |
574 | data->alt->got_indices = 0; |
575 | data->alt->packs = NULL; | |
576 | data->alt->next = NULL; | |
577 | data->got_alternates = -1; | |
fc57b6aa | 578 | |
30ae764b DB |
579 | walker->corrupt_object_found = 0; |
580 | walker->fetch = fetch; | |
581 | walker->fetch_ref = fetch_ref; | |
582 | walker->prefetch = prefetch; | |
583 | walker->cleanup = cleanup; | |
584 | walker->data = data; | |
6eb7ed54 | 585 | |
30ae764b DB |
586 | #ifdef USE_CURL_MULTI |
587 | add_fill_function(walker, (int (*)(void *)) fill_active_slot); | |
588 | #endif | |
8e29f6a0 | 589 | |
30ae764b | 590 | return walker; |
6eb7ed54 | 591 | } |