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Commit | Line | Data |
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6eb7ed54 DB |
1 | #include "cache.h" |
2 | #include "commit.h" | |
271421cd | 3 | #include "pack.h" |
215a7ad1 | 4 | #include "fetch.h" |
4250a5e5 | 5 | |
6eb7ed54 DB |
6 | #include <curl/curl.h> |
7 | #include <curl/easy.h> | |
8 | ||
a7a8d378 NH |
9 | #if LIBCURL_VERSION_NUM >= 0x070908 |
10 | #define USE_CURL_MULTI | |
1d389ab6 | 11 | #define DEFAULT_MAX_REQUESTS 5 |
a7a8d378 | 12 | #endif |
1d389ab6 | 13 | |
4a30976e JS |
14 | #if LIBCURL_VERSION_NUM < 0x070704 |
15 | #define curl_global_cleanup() do { /* nothing */ } while(0) | |
16 | #endif | |
17 | #if LIBCURL_VERSION_NUM < 0x070800 | |
18 | #define curl_global_init(a) do { /* nothing */ } while(0) | |
19 | #endif | |
4a30976e | 20 | |
49a0f240 NH |
21 | #define PREV_BUF_SIZE 4096 |
22 | #define RANGE_HEADER_SIZE 30 | |
23 | ||
1d389ab6 NH |
24 | static int active_requests = 0; |
25 | static int data_received; | |
26 | ||
a7a8d378 | 27 | #ifdef USE_CURL_MULTI |
d402d556 | 28 | static int max_requests = -1; |
1d389ab6 | 29 | static CURLM *curlm; |
a7a8d378 | 30 | #endif |
1d389ab6 | 31 | static CURL *curl_default; |
03126006 | 32 | static struct curl_slist *pragma_header; |
1db69b57 | 33 | static struct curl_slist *no_pragma_header; |
49a0f240 | 34 | static struct curl_slist *no_range_header; |
1ddea77e | 35 | static char curl_errorstr[CURL_ERROR_SIZE]; |
6eb7ed54 | 36 | |
b3661567 DB |
37 | struct alt_base |
38 | { | |
39 | char *base; | |
40 | int got_indices; | |
41 | struct packed_git *packs; | |
42 | struct alt_base *next; | |
43 | }; | |
44 | ||
a7928f8e | 45 | static struct alt_base *alt = NULL; |
6eb7ed54 | 46 | |
1d389ab6 NH |
47 | enum transfer_state { |
48 | WAITING, | |
49 | ABORTED, | |
50 | ACTIVE, | |
51 | COMPLETE, | |
52 | }; | |
6eb7ed54 | 53 | |
1d389ab6 NH |
54 | struct transfer_request |
55 | { | |
56 | unsigned char sha1[20]; | |
57 | struct alt_base *repo; | |
58 | char *url; | |
59 | char filename[PATH_MAX]; | |
60 | char tmpfile[PATH_MAX]; | |
61 | int local; | |
62 | enum transfer_state state; | |
63 | CURLcode curl_result; | |
64 | char errorstr[CURL_ERROR_SIZE]; | |
65 | long http_code; | |
66 | unsigned char real_sha1[20]; | |
67 | SHA_CTX c; | |
68 | z_stream stream; | |
69 | int zret; | |
70 | int rename; | |
71 | struct active_request_slot *slot; | |
72 | struct transfer_request *next; | |
73 | }; | |
74 | ||
75 | struct active_request_slot | |
76 | { | |
77 | CURL *curl; | |
78 | FILE *local; | |
79 | int in_use; | |
80 | int done; | |
81 | CURLcode curl_result; | |
82 | struct active_request_slot *next; | |
83 | }; | |
84 | ||
85 | static struct transfer_request *request_queue_head = NULL; | |
86 | static struct active_request_slot *active_queue_head = NULL; | |
6eb7ed54 | 87 | |
d402d556 NH |
88 | static int curl_ssl_verify = -1; |
89 | static char *ssl_cert = NULL; | |
90 | static char *ssl_key = NULL; | |
91 | static char *ssl_capath = NULL; | |
92 | static char *ssl_cainfo = NULL; | |
3dcb90f5 | 93 | |
fa3e0655 DB |
94 | struct buffer |
95 | { | |
96 | size_t posn; | |
97 | size_t size; | |
98 | void *buffer; | |
99 | }; | |
100 | ||
d402d556 NH |
101 | static int http_options(const char *var, const char *value) |
102 | { | |
103 | if (!strcmp("http.sslverify", var)) { | |
104 | if (curl_ssl_verify == -1) { | |
105 | curl_ssl_verify = git_config_bool(var, value); | |
106 | } | |
107 | return 0; | |
108 | } | |
109 | ||
110 | if (!strcmp("http.sslcert", var)) { | |
111 | if (ssl_cert == NULL) { | |
112 | ssl_cert = xmalloc(strlen(value)+1); | |
113 | strcpy(ssl_cert, value); | |
114 | } | |
115 | return 0; | |
116 | } | |
117 | #if LIBCURL_VERSION_NUM >= 0x070902 | |
118 | if (!strcmp("http.sslkey", var)) { | |
119 | if (ssl_key == NULL) { | |
120 | ssl_key = xmalloc(strlen(value)+1); | |
121 | strcpy(ssl_key, value); | |
122 | } | |
123 | return 0; | |
124 | } | |
125 | #endif | |
126 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
127 | if (!strcmp("http.sslcapath", var)) { | |
128 | if (ssl_capath == NULL) { | |
129 | ssl_capath = xmalloc(strlen(value)+1); | |
130 | strcpy(ssl_capath, value); | |
131 | } | |
132 | return 0; | |
133 | } | |
134 | #endif | |
135 | if (!strcmp("http.sslcainfo", var)) { | |
136 | if (ssl_cainfo == NULL) { | |
137 | ssl_cainfo = xmalloc(strlen(value)+1); | |
138 | strcpy(ssl_cainfo, value); | |
139 | } | |
140 | return 0; | |
141 | } | |
142 | ||
143 | #ifdef USE_CURL_MULTI | |
144 | if (!strcmp("http.maxrequests", var)) { | |
145 | if (max_requests == -1) | |
146 | max_requests = git_config_int(var, value); | |
147 | return 0; | |
148 | } | |
149 | #endif | |
150 | ||
151 | /* Fall back on the default ones */ | |
152 | return git_default_config(var, value); | |
153 | } | |
154 | ||
fa3e0655 | 155 | static size_t fwrite_buffer(void *ptr, size_t eltsize, size_t nmemb, |
182005b9 DB |
156 | struct buffer *buffer) |
157 | { | |
fa3e0655 DB |
158 | size_t size = eltsize * nmemb; |
159 | if (size > buffer->size - buffer->posn) | |
160 | size = buffer->size - buffer->posn; | |
161 | memcpy(buffer->buffer + buffer->posn, ptr, size); | |
162 | buffer->posn += size; | |
1d389ab6 | 163 | data_received++; |
fa3e0655 DB |
164 | return size; |
165 | } | |
166 | ||
bc8f2652 SV |
167 | static size_t fwrite_buffer_dynamic(const void *ptr, size_t eltsize, |
168 | size_t nmemb, struct buffer *buffer) | |
169 | { | |
170 | size_t size = eltsize * nmemb; | |
171 | if (size > buffer->size - buffer->posn) { | |
172 | buffer->size = buffer->size * 3 / 2; | |
173 | if (buffer->size < buffer->posn + size) | |
174 | buffer->size = buffer->posn + size; | |
175 | buffer->buffer = xrealloc(buffer->buffer, buffer->size); | |
176 | } | |
177 | memcpy(buffer->buffer + buffer->posn, ptr, size); | |
178 | buffer->posn += size; | |
179 | data_received++; | |
180 | return size; | |
181 | } | |
182 | ||
182005b9 DB |
183 | static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb, |
184 | void *data) | |
185 | { | |
bf0f910d | 186 | unsigned char expn[4096]; |
6eb7ed54 DB |
187 | size_t size = eltsize * nmemb; |
188 | int posn = 0; | |
1d389ab6 | 189 | struct transfer_request *request = (struct transfer_request *)data; |
6eb7ed54 | 190 | do { |
1d389ab6 NH |
191 | ssize_t retval = write(request->local, |
192 | ptr + posn, size - posn); | |
6eb7ed54 DB |
193 | if (retval < 0) |
194 | return posn; | |
195 | posn += retval; | |
196 | } while (posn < size); | |
197 | ||
1d389ab6 NH |
198 | request->stream.avail_in = size; |
199 | request->stream.next_in = ptr; | |
6eb7ed54 | 200 | do { |
1d389ab6 NH |
201 | request->stream.next_out = expn; |
202 | request->stream.avail_out = sizeof(expn); | |
203 | request->zret = inflate(&request->stream, Z_SYNC_FLUSH); | |
204 | SHA1_Update(&request->c, expn, | |
205 | sizeof(expn) - request->stream.avail_out); | |
206 | } while (request->stream.avail_in && request->zret == Z_OK); | |
207 | data_received++; | |
6eb7ed54 DB |
208 | return size; |
209 | } | |
210 | ||
a7a8d378 | 211 | #ifdef USE_CURL_MULTI |
1d389ab6 NH |
212 | void process_curl_messages(); |
213 | void process_request_queue(); | |
a7a8d378 | 214 | #endif |
1d389ab6 NH |
215 | |
216 | struct active_request_slot *get_active_slot() | |
217 | { | |
218 | struct active_request_slot *slot = active_queue_head; | |
219 | struct active_request_slot *newslot; | |
a7a8d378 NH |
220 | |
221 | #ifdef USE_CURL_MULTI | |
1d389ab6 NH |
222 | int num_transfers; |
223 | ||
224 | /* Wait for a slot to open up if the queue is full */ | |
225 | while (active_requests >= max_requests) { | |
226 | curl_multi_perform(curlm, &num_transfers); | |
227 | if (num_transfers < active_requests) { | |
228 | process_curl_messages(); | |
229 | } | |
230 | } | |
a7a8d378 | 231 | #endif |
1d389ab6 NH |
232 | |
233 | while (slot != NULL && slot->in_use) { | |
234 | slot = slot->next; | |
235 | } | |
236 | if (slot == NULL) { | |
237 | newslot = xmalloc(sizeof(*newslot)); | |
238 | newslot->curl = curl_easy_duphandle(curl_default); | |
239 | newslot->in_use = 0; | |
240 | newslot->next = NULL; | |
241 | ||
242 | slot = active_queue_head; | |
243 | if (slot == NULL) { | |
244 | active_queue_head = newslot; | |
245 | } else { | |
246 | while (slot->next != NULL) { | |
247 | slot = slot->next; | |
248 | } | |
249 | slot->next = newslot; | |
250 | } | |
251 | slot = newslot; | |
252 | } | |
253 | ||
254 | active_requests++; | |
255 | slot->in_use = 1; | |
256 | slot->done = 0; | |
257 | slot->local = NULL; | |
03126006 | 258 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
1d389ab6 NH |
259 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_range_header); |
260 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); | |
261 | ||
262 | return slot; | |
263 | } | |
264 | ||
265 | int start_active_slot(struct active_request_slot *slot) | |
266 | { | |
a7a8d378 | 267 | #ifdef USE_CURL_MULTI |
1d389ab6 NH |
268 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); |
269 | ||
270 | if (curlm_result != CURLM_OK && | |
271 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
272 | active_requests--; | |
273 | slot->in_use = 0; | |
274 | return 0; | |
275 | } | |
a7a8d378 | 276 | #endif |
1d389ab6 NH |
277 | return 1; |
278 | } | |
279 | ||
280 | void run_active_slot(struct active_request_slot *slot) | |
281 | { | |
a7a8d378 | 282 | #ifdef USE_CURL_MULTI |
1d389ab6 NH |
283 | int num_transfers; |
284 | long last_pos = 0; | |
285 | long current_pos; | |
286 | fd_set readfds; | |
287 | fd_set writefds; | |
288 | fd_set excfds; | |
289 | int max_fd; | |
290 | struct timeval select_timeout; | |
291 | CURLMcode curlm_result; | |
292 | ||
293 | while (!slot->done) { | |
294 | data_received = 0; | |
295 | do { | |
296 | curlm_result = curl_multi_perform(curlm, | |
297 | &num_transfers); | |
298 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
299 | if (num_transfers < active_requests) { | |
300 | process_curl_messages(); | |
301 | process_request_queue(); | |
302 | } | |
303 | ||
304 | if (!data_received && slot->local != NULL) { | |
305 | current_pos = ftell(slot->local); | |
306 | if (current_pos > last_pos) | |
307 | data_received++; | |
308 | last_pos = current_pos; | |
309 | } | |
310 | ||
311 | if (!slot->done && !data_received) { | |
312 | max_fd = 0; | |
313 | FD_ZERO(&readfds); | |
314 | FD_ZERO(&writefds); | |
315 | FD_ZERO(&excfds); | |
316 | select_timeout.tv_sec = 0; | |
317 | select_timeout.tv_usec = 50000; | |
318 | select(max_fd, &readfds, &writefds, | |
319 | &excfds, &select_timeout); | |
320 | } | |
321 | } | |
a7a8d378 NH |
322 | #else |
323 | slot->curl_result = curl_easy_perform(slot->curl); | |
324 | active_requests--; | |
325 | #endif | |
1d389ab6 NH |
326 | } |
327 | ||
328 | void start_request(struct transfer_request *request) | |
329 | { | |
330 | char *hex = sha1_to_hex(request->sha1); | |
331 | char prevfile[PATH_MAX]; | |
332 | char *url; | |
333 | char *posn; | |
334 | int prevlocal; | |
335 | unsigned char prev_buf[PREV_BUF_SIZE]; | |
336 | ssize_t prev_read = 0; | |
337 | long prev_posn = 0; | |
338 | char range[RANGE_HEADER_SIZE]; | |
339 | struct curl_slist *range_header = NULL; | |
340 | struct active_request_slot *slot; | |
341 | ||
342 | snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename); | |
343 | unlink(prevfile); | |
344 | rename(request->tmpfile, prevfile); | |
345 | unlink(request->tmpfile); | |
346 | ||
347 | request->local = open(request->tmpfile, | |
348 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
b721e01f JH |
349 | /* This could have failed due to the "lazy directory creation"; |
350 | * try to mkdir the last path component. | |
351 | */ | |
352 | if (request->local < 0 && errno == ENOENT) { | |
353 | char *dir = strrchr(request->tmpfile, '/'); | |
354 | if (dir) { | |
355 | *dir = 0; | |
356 | mkdir(request->tmpfile, 0777); | |
357 | *dir = '/'; | |
358 | } | |
359 | request->local = open(request->tmpfile, | |
360 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
361 | } | |
362 | ||
1d389ab6 NH |
363 | if (request->local < 0) { |
364 | request->state = ABORTED; | |
365 | error("Couldn't create temporary file %s for %s: %s\n", | |
366 | request->tmpfile, request->filename, strerror(errno)); | |
367 | return; | |
368 | } | |
369 | ||
370 | memset(&request->stream, 0, sizeof(request->stream)); | |
371 | ||
372 | inflateInit(&request->stream); | |
373 | ||
374 | SHA1_Init(&request->c); | |
375 | ||
376 | url = xmalloc(strlen(request->repo->base) + 50); | |
377 | request->url = xmalloc(strlen(request->repo->base) + 50); | |
378 | strcpy(url, request->repo->base); | |
379 | posn = url + strlen(request->repo->base); | |
380 | strcpy(posn, "objects/"); | |
381 | posn += 8; | |
382 | memcpy(posn, hex, 2); | |
383 | posn += 2; | |
384 | *(posn++) = '/'; | |
385 | strcpy(posn, hex + 2); | |
386 | strcpy(request->url, url); | |
387 | ||
388 | /* If a previous temp file is present, process what was already | |
389 | fetched. */ | |
390 | prevlocal = open(prevfile, O_RDONLY); | |
391 | if (prevlocal != -1) { | |
392 | do { | |
393 | prev_read = read(prevlocal, prev_buf, PREV_BUF_SIZE); | |
394 | if (prev_read>0) { | |
395 | if (fwrite_sha1_file(prev_buf, | |
396 | 1, | |
397 | prev_read, | |
398 | request) == prev_read) { | |
399 | prev_posn += prev_read; | |
400 | } else { | |
401 | prev_read = -1; | |
402 | } | |
403 | } | |
404 | } while (prev_read > 0); | |
405 | close(prevlocal); | |
406 | } | |
407 | unlink(prevfile); | |
408 | ||
409 | /* Reset inflate/SHA1 if there was an error reading the previous temp | |
410 | file; also rewind to the beginning of the local file. */ | |
411 | if (prev_read == -1) { | |
412 | memset(&request->stream, 0, sizeof(request->stream)); | |
413 | inflateInit(&request->stream); | |
414 | SHA1_Init(&request->c); | |
415 | if (prev_posn>0) { | |
416 | prev_posn = 0; | |
417 | lseek(request->local, SEEK_SET, 0); | |
418 | ftruncate(request->local, 0); | |
419 | } | |
420 | } | |
421 | ||
422 | slot = get_active_slot(); | |
423 | curl_easy_setopt(slot->curl, CURLOPT_FILE, request); | |
424 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
425 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr); | |
426 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
03126006 | 427 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1d389ab6 NH |
428 | |
429 | /* If we have successfully processed data from a previous fetch | |
430 | attempt, only fetch the data we don't already have. */ | |
431 | if (prev_posn>0) { | |
432 | if (get_verbosely) | |
433 | fprintf(stderr, | |
434 | "Resuming fetch of object %s at byte %ld\n", | |
435 | hex, prev_posn); | |
436 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
437 | range_header = curl_slist_append(range_header, range); | |
438 | curl_easy_setopt(slot->curl, | |
439 | CURLOPT_HTTPHEADER, range_header); | |
440 | } | |
441 | ||
a7a8d378 | 442 | /* Try to get the request started, abort the request on error */ |
1d389ab6 NH |
443 | if (!start_active_slot(slot)) { |
444 | request->state = ABORTED; | |
445 | close(request->local); | |
446 | free(request->url); | |
447 | return; | |
448 | } | |
449 | ||
450 | request->slot = slot; | |
451 | request->state = ACTIVE; | |
452 | } | |
453 | ||
454 | void finish_request(struct transfer_request *request) | |
455 | { | |
456 | fchmod(request->local, 0444); | |
457 | close(request->local); | |
458 | ||
459 | if (request->http_code == 416) { | |
460 | fprintf(stderr, "Warning: requested range invalid; we may already have all the data.\n"); | |
461 | } else if (request->curl_result != CURLE_OK) { | |
462 | return; | |
463 | } | |
464 | ||
465 | inflateEnd(&request->stream); | |
466 | SHA1_Final(request->real_sha1, &request->c); | |
467 | if (request->zret != Z_STREAM_END) { | |
468 | unlink(request->tmpfile); | |
469 | return; | |
470 | } | |
471 | if (memcmp(request->sha1, request->real_sha1, 20)) { | |
472 | unlink(request->tmpfile); | |
473 | return; | |
474 | } | |
475 | request->rename = | |
b721e01f | 476 | move_temp_to_file(request->tmpfile, request->filename); |
1d389ab6 NH |
477 | |
478 | if (request->rename == 0) | |
479 | pull_say("got %s\n", sha1_to_hex(request->sha1)); | |
480 | } | |
481 | ||
482 | void release_request(struct transfer_request *request) | |
483 | { | |
484 | struct transfer_request *entry = request_queue_head; | |
485 | ||
486 | if (request == request_queue_head) { | |
487 | request_queue_head = request->next; | |
488 | } else { | |
489 | while (entry->next != NULL && entry->next != request) | |
490 | entry = entry->next; | |
491 | if (entry->next == request) | |
492 | entry->next = entry->next->next; | |
493 | } | |
494 | ||
495 | free(request->url); | |
496 | free(request); | |
497 | } | |
498 | ||
a7a8d378 | 499 | #ifdef USE_CURL_MULTI |
1d389ab6 NH |
500 | void process_curl_messages() |
501 | { | |
502 | int num_messages; | |
503 | struct active_request_slot *slot; | |
504 | struct transfer_request *request = NULL; | |
505 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
506 | ||
507 | while (curl_message != NULL) { | |
508 | if (curl_message->msg == CURLMSG_DONE) { | |
509 | slot = active_queue_head; | |
510 | while (slot != NULL && | |
511 | slot->curl != curl_message->easy_handle) | |
512 | slot = slot->next; | |
513 | if (slot != NULL) { | |
514 | curl_multi_remove_handle(curlm, slot->curl); | |
515 | active_requests--; | |
516 | slot->done = 1; | |
517 | slot->in_use = 0; | |
518 | slot->curl_result = curl_message->data.result; | |
519 | request = request_queue_head; | |
520 | while (request != NULL && | |
521 | request->slot != slot) | |
522 | request = request->next; | |
523 | } else { | |
524 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
525 | } | |
526 | if (request != NULL) { | |
527 | request->curl_result = | |
528 | curl_message->data.result; | |
529 | curl_easy_getinfo(slot->curl, | |
530 | CURLINFO_HTTP_CODE, | |
531 | &request->http_code); | |
532 | request->slot = NULL; | |
533 | ||
534 | /* Use alternates if necessary */ | |
535 | if (request->http_code == 404 && | |
536 | request->repo->next != NULL) { | |
537 | request->repo = request->repo->next; | |
538 | start_request(request); | |
539 | } else { | |
540 | finish_request(request); | |
541 | request->state = COMPLETE; | |
542 | } | |
543 | } | |
544 | } else { | |
545 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
546 | (int)curl_message->msg); | |
547 | } | |
548 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
549 | } | |
550 | } | |
551 | ||
552 | void process_request_queue() | |
553 | { | |
554 | struct transfer_request *request = request_queue_head; | |
555 | int num_transfers; | |
556 | ||
557 | while (active_requests < max_requests && request != NULL) { | |
558 | if (request->state == WAITING) { | |
11f0dafe NH |
559 | if (has_sha1_file(request->sha1)) |
560 | release_request(request); | |
561 | else | |
562 | start_request(request); | |
1d389ab6 NH |
563 | curl_multi_perform(curlm, &num_transfers); |
564 | } | |
565 | request = request->next; | |
566 | } | |
567 | } | |
a7a8d378 | 568 | #endif |
1d389ab6 NH |
569 | |
570 | void prefetch(unsigned char *sha1) | |
571 | { | |
572 | struct transfer_request *newreq; | |
573 | struct transfer_request *tail; | |
574 | char *filename = sha1_file_name(sha1); | |
575 | ||
576 | newreq = xmalloc(sizeof(*newreq)); | |
577 | memcpy(newreq->sha1, sha1, 20); | |
578 | newreq->repo = alt; | |
579 | newreq->url = NULL; | |
580 | newreq->local = -1; | |
581 | newreq->state = WAITING; | |
582 | snprintf(newreq->filename, sizeof(newreq->filename), "%s", filename); | |
583 | snprintf(newreq->tmpfile, sizeof(newreq->tmpfile), | |
584 | "%s.temp", filename); | |
585 | newreq->next = NULL; | |
586 | ||
587 | if (request_queue_head == NULL) { | |
588 | request_queue_head = newreq; | |
589 | } else { | |
590 | tail = request_queue_head; | |
591 | while (tail->next != NULL) { | |
592 | tail = tail->next; | |
593 | } | |
594 | tail->next = newreq; | |
595 | } | |
a7a8d378 | 596 | #ifdef USE_CURL_MULTI |
1d389ab6 NH |
597 | process_request_queue(); |
598 | process_curl_messages(); | |
a7a8d378 | 599 | #endif |
1d389ab6 NH |
600 | } |
601 | ||
b3661567 | 602 | static int fetch_index(struct alt_base *repo, unsigned char *sha1) |
182005b9 | 603 | { |
1d389ab6 | 604 | char *hex = sha1_to_hex(sha1); |
182005b9 DB |
605 | char *filename; |
606 | char *url; | |
49a0f240 | 607 | char tmpfile[PATH_MAX]; |
49a0f240 NH |
608 | long prev_posn = 0; |
609 | char range[RANGE_HEADER_SIZE]; | |
610 | struct curl_slist *range_header = NULL; | |
182005b9 DB |
611 | |
612 | FILE *indexfile; | |
1d389ab6 | 613 | struct active_request_slot *slot; |
182005b9 DB |
614 | |
615 | if (has_pack_index(sha1)) | |
616 | return 0; | |
617 | ||
618 | if (get_verbosely) | |
1d389ab6 | 619 | fprintf(stderr, "Getting index for pack %s\n", hex); |
182005b9 | 620 | |
b3661567 | 621 | url = xmalloc(strlen(repo->base) + 64); |
1d389ab6 | 622 | sprintf(url, "%s/objects/pack/pack-%s.idx", repo->base, hex); |
182005b9 DB |
623 | |
624 | filename = sha1_pack_index_name(sha1); | |
49a0f240 NH |
625 | snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename); |
626 | indexfile = fopen(tmpfile, "a"); | |
182005b9 DB |
627 | if (!indexfile) |
628 | return error("Unable to open local file %s for pack index", | |
629 | filename); | |
630 | ||
1d389ab6 NH |
631 | slot = get_active_slot(); |
632 | curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile); | |
633 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
634 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
03126006 | 635 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1d389ab6 NH |
636 | slot->local = indexfile; |
637 | ||
49a0f240 NH |
638 | /* If there is data present from a previous transfer attempt, |
639 | resume where it left off */ | |
640 | prev_posn = ftell(indexfile); | |
641 | if (prev_posn>0) { | |
642 | if (get_verbosely) | |
643 | fprintf(stderr, | |
644 | "Resuming fetch of index for pack %s at byte %ld\n", | |
1d389ab6 | 645 | hex, prev_posn); |
49a0f240 NH |
646 | sprintf(range, "Range: bytes=%ld-", prev_posn); |
647 | range_header = curl_slist_append(range_header, range); | |
1d389ab6 | 648 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header); |
49a0f240 NH |
649 | } |
650 | ||
1d389ab6 NH |
651 | if (start_active_slot(slot)) { |
652 | run_active_slot(slot); | |
653 | if (slot->curl_result != CURLE_OK) { | |
654 | fclose(indexfile); | |
655 | return error("Unable to get pack index %s\n%s", url, | |
656 | curl_errorstr); | |
657 | } | |
658 | } else { | |
659 | return error("Unable to start request"); | |
182005b9 DB |
660 | } |
661 | ||
662 | fclose(indexfile); | |
49a0f240 | 663 | |
b721e01f | 664 | return move_temp_to_file(tmpfile, filename); |
182005b9 DB |
665 | } |
666 | ||
b3661567 | 667 | static int setup_index(struct alt_base *repo, unsigned char *sha1) |
182005b9 DB |
668 | { |
669 | struct packed_git *new_pack; | |
670 | if (has_pack_file(sha1)) | |
671 | return 0; // don't list this as something we can get | |
672 | ||
b3661567 | 673 | if (fetch_index(repo, sha1)) |
182005b9 DB |
674 | return -1; |
675 | ||
676 | new_pack = parse_pack_index(sha1); | |
b3661567 DB |
677 | new_pack->next = repo->packs; |
678 | repo->packs = new_pack; | |
182005b9 DB |
679 | return 0; |
680 | } | |
681 | ||
b3661567 DB |
682 | static int fetch_alternates(char *base) |
683 | { | |
684 | int ret = 0; | |
685 | struct buffer buffer; | |
686 | char *url; | |
687 | char *data; | |
688 | int i = 0; | |
1b0c1e67 | 689 | int http_specific = 1; |
1d389ab6 | 690 | struct alt_base *tail = alt; |
bc8f2652 | 691 | static const char null_byte = '\0'; |
1d389ab6 NH |
692 | |
693 | struct active_request_slot *slot; | |
dc1b5ea8 | 694 | |
b3661567 | 695 | data = xmalloc(4096); |
bc8f2652 | 696 | buffer.size = 4096; |
b3661567 DB |
697 | buffer.posn = 0; |
698 | buffer.buffer = data; | |
699 | ||
700 | if (get_verbosely) | |
701 | fprintf(stderr, "Getting alternates list\n"); | |
702 | ||
703 | url = xmalloc(strlen(base) + 31); | |
704 | sprintf(url, "%s/objects/info/http-alternates", base); | |
705 | ||
1d389ab6 NH |
706 | slot = get_active_slot(); |
707 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
bc8f2652 SV |
708 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, |
709 | fwrite_buffer_dynamic); | |
1d389ab6 NH |
710 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
711 | if (start_active_slot(slot)) { | |
712 | run_active_slot(slot); | |
713 | if (slot->curl_result != CURLE_OK || !buffer.posn) { | |
714 | http_specific = 0; | |
715 | ||
716 | sprintf(url, "%s/objects/info/alternates", base); | |
717 | ||
718 | slot = get_active_slot(); | |
719 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
720 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
bc8f2652 | 721 | fwrite_buffer_dynamic); |
1d389ab6 NH |
722 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
723 | if (start_active_slot(slot)) { | |
724 | run_active_slot(slot); | |
725 | if (slot->curl_result != CURLE_OK) { | |
bc8f2652 | 726 | free(buffer.buffer); |
1d389ab6 NH |
727 | return 0; |
728 | } | |
729 | } | |
b3661567 | 730 | } |
1d389ab6 | 731 | } else { |
bc8f2652 | 732 | free(buffer.buffer); |
1d389ab6 | 733 | return 0; |
b3661567 DB |
734 | } |
735 | ||
bc8f2652 SV |
736 | fwrite_buffer_dynamic(&null_byte, 1, 1, &buffer); |
737 | buffer.posn--; | |
738 | data = buffer.buffer; | |
1b0c1e67 | 739 | |
b3661567 DB |
740 | while (i < buffer.posn) { |
741 | int posn = i; | |
742 | while (posn < buffer.posn && data[posn] != '\n') | |
743 | posn++; | |
744 | if (data[posn] == '\n') { | |
1b0c1e67 DB |
745 | int okay = 0; |
746 | int serverlen = 0; | |
747 | struct alt_base *newalt; | |
748 | char *target = NULL; | |
b3661567 | 749 | if (data[i] == '/') { |
1b0c1e67 DB |
750 | serverlen = strchr(base + 8, '/') - base; |
751 | okay = 1; | |
752 | } else if (!memcmp(data + i, "../", 3)) { | |
753 | i += 3; | |
754 | serverlen = strlen(base); | |
755 | while (i + 2 < posn && | |
756 | !memcmp(data + i, "../", 3)) { | |
757 | do { | |
758 | serverlen--; | |
759 | } while (serverlen && | |
760 | base[serverlen - 1] != '/'); | |
761 | i += 3; | |
762 | } | |
763 | // If the server got removed, give up. | |
764 | okay = strchr(base, ':') - base + 3 < | |
765 | serverlen; | |
766 | } else if (http_specific) { | |
767 | char *colon = strchr(data + i, ':'); | |
768 | char *slash = strchr(data + i, '/'); | |
769 | if (colon && slash && colon < data + posn && | |
770 | slash < data + posn && colon < slash) { | |
771 | okay = 1; | |
772 | } | |
773 | } | |
774 | // skip 'objects' at end | |
775 | if (okay) { | |
776 | target = xmalloc(serverlen + posn - i - 6); | |
b3661567 DB |
777 | strncpy(target, base, serverlen); |
778 | strncpy(target + serverlen, data + i, | |
779 | posn - i - 7); | |
780 | target[serverlen + posn - i - 7] = '\0'; | |
781 | if (get_verbosely) | |
782 | fprintf(stderr, | |
783 | "Also look at %s\n", target); | |
784 | newalt = xmalloc(sizeof(*newalt)); | |
1d389ab6 | 785 | newalt->next = NULL; |
b3661567 DB |
786 | newalt->base = target; |
787 | newalt->got_indices = 0; | |
788 | newalt->packs = NULL; | |
1d389ab6 NH |
789 | while (tail->next != NULL) |
790 | tail = tail->next; | |
791 | tail->next = newalt; | |
b3661567 DB |
792 | ret++; |
793 | } | |
794 | } | |
795 | i = posn + 1; | |
796 | } | |
bc8f2652 SV |
797 | |
798 | free(buffer.buffer); | |
b3661567 DB |
799 | return ret; |
800 | } | |
801 | ||
802 | static int fetch_indices(struct alt_base *repo) | |
182005b9 DB |
803 | { |
804 | unsigned char sha1[20]; | |
805 | char *url; | |
806 | struct buffer buffer; | |
807 | char *data; | |
808 | int i = 0; | |
809 | ||
1d389ab6 NH |
810 | struct active_request_slot *slot; |
811 | ||
b3661567 | 812 | if (repo->got_indices) |
182005b9 DB |
813 | return 0; |
814 | ||
815 | data = xmalloc(4096); | |
816 | buffer.size = 4096; | |
817 | buffer.posn = 0; | |
818 | buffer.buffer = data; | |
819 | ||
820 | if (get_verbosely) | |
821 | fprintf(stderr, "Getting pack list\n"); | |
822 | ||
b3661567 DB |
823 | url = xmalloc(strlen(repo->base) + 21); |
824 | sprintf(url, "%s/objects/info/packs", repo->base); | |
182005b9 | 825 | |
1d389ab6 NH |
826 | slot = get_active_slot(); |
827 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
bc8f2652 SV |
828 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, |
829 | fwrite_buffer_dynamic); | |
1d389ab6 NH |
830 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
831 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL); | |
832 | if (start_active_slot(slot)) { | |
833 | run_active_slot(slot); | |
bc8f2652 SV |
834 | if (slot->curl_result != CURLE_OK) { |
835 | free(buffer.buffer); | |
1d389ab6 | 836 | return error("%s", curl_errorstr); |
bc8f2652 | 837 | } |
1d389ab6 | 838 | } else { |
bc8f2652 | 839 | free(buffer.buffer); |
1d389ab6 NH |
840 | return error("Unable to start request"); |
841 | } | |
182005b9 | 842 | |
bc8f2652 | 843 | data = buffer.buffer; |
b3661567 | 844 | while (i < buffer.posn) { |
182005b9 DB |
845 | switch (data[i]) { |
846 | case 'P': | |
847 | i++; | |
848 | if (i + 52 < buffer.posn && | |
849 | !strncmp(data + i, " pack-", 6) && | |
850 | !strncmp(data + i + 46, ".pack\n", 6)) { | |
851 | get_sha1_hex(data + i + 6, sha1); | |
b3661567 | 852 | setup_index(repo, sha1); |
182005b9 DB |
853 | i += 51; |
854 | break; | |
855 | } | |
856 | default: | |
857 | while (data[i] != '\n') | |
858 | i++; | |
859 | } | |
860 | i++; | |
b3661567 | 861 | } |
182005b9 | 862 | |
bc8f2652 | 863 | free(buffer.buffer); |
b3661567 | 864 | repo->got_indices = 1; |
182005b9 DB |
865 | return 0; |
866 | } | |
867 | ||
b3661567 | 868 | static int fetch_pack(struct alt_base *repo, unsigned char *sha1) |
182005b9 DB |
869 | { |
870 | char *url; | |
871 | struct packed_git *target; | |
872 | struct packed_git **lst; | |
873 | FILE *packfile; | |
874 | char *filename; | |
49a0f240 NH |
875 | char tmpfile[PATH_MAX]; |
876 | int ret; | |
877 | long prev_posn = 0; | |
878 | char range[RANGE_HEADER_SIZE]; | |
879 | struct curl_slist *range_header = NULL; | |
1d389ab6 NH |
880 | |
881 | struct active_request_slot *slot; | |
182005b9 | 882 | |
b3661567 | 883 | if (fetch_indices(repo)) |
182005b9 | 884 | return -1; |
b3661567 | 885 | target = find_sha1_pack(sha1, repo->packs); |
182005b9 | 886 | if (!target) |
b3661567 | 887 | return -1; |
182005b9 DB |
888 | |
889 | if (get_verbosely) { | |
890 | fprintf(stderr, "Getting pack %s\n", | |
891 | sha1_to_hex(target->sha1)); | |
892 | fprintf(stderr, " which contains %s\n", | |
893 | sha1_to_hex(sha1)); | |
894 | } | |
895 | ||
b3661567 | 896 | url = xmalloc(strlen(repo->base) + 65); |
182005b9 | 897 | sprintf(url, "%s/objects/pack/pack-%s.pack", |
b3661567 | 898 | repo->base, sha1_to_hex(target->sha1)); |
182005b9 DB |
899 | |
900 | filename = sha1_pack_name(target->sha1); | |
49a0f240 NH |
901 | snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename); |
902 | packfile = fopen(tmpfile, "a"); | |
182005b9 DB |
903 | if (!packfile) |
904 | return error("Unable to open local file %s for pack", | |
905 | filename); | |
906 | ||
1d389ab6 NH |
907 | slot = get_active_slot(); |
908 | curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile); | |
909 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
910 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
03126006 | 911 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1d389ab6 | 912 | slot->local = packfile; |
1ddea77e | 913 | |
49a0f240 NH |
914 | /* If there is data present from a previous transfer attempt, |
915 | resume where it left off */ | |
916 | prev_posn = ftell(packfile); | |
917 | if (prev_posn>0) { | |
918 | if (get_verbosely) | |
919 | fprintf(stderr, | |
920 | "Resuming fetch of pack %s at byte %ld\n", | |
921 | sha1_to_hex(target->sha1), prev_posn); | |
922 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
923 | range_header = curl_slist_append(range_header, range); | |
1d389ab6 | 924 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header); |
49a0f240 NH |
925 | } |
926 | ||
1d389ab6 NH |
927 | if (start_active_slot(slot)) { |
928 | run_active_slot(slot); | |
929 | if (slot->curl_result != CURLE_OK) { | |
930 | fclose(packfile); | |
931 | return error("Unable to get pack file %s\n%s", url, | |
932 | curl_errorstr); | |
933 | } | |
934 | } else { | |
935 | return error("Unable to start request"); | |
182005b9 DB |
936 | } |
937 | ||
938 | fclose(packfile); | |
939 | ||
b721e01f | 940 | ret = move_temp_to_file(tmpfile, filename); |
49a0f240 | 941 | if (ret) |
b721e01f | 942 | return ret; |
49a0f240 | 943 | |
b3661567 | 944 | lst = &repo->packs; |
182005b9 DB |
945 | while (*lst != target) |
946 | lst = &((*lst)->next); | |
947 | *lst = (*lst)->next; | |
948 | ||
271421cd JH |
949 | if (verify_pack(target, 0)) |
950 | return -1; | |
182005b9 DB |
951 | install_packed_git(target); |
952 | ||
953 | return 0; | |
954 | } | |
955 | ||
a7928f8e | 956 | static int fetch_object(struct alt_base *repo, unsigned char *sha1) |
6eb7ed54 DB |
957 | { |
958 | char *hex = sha1_to_hex(sha1); | |
09d92083 | 959 | int ret; |
1d389ab6 | 960 | struct transfer_request *request = request_queue_head; |
1d389ab6 NH |
961 | |
962 | while (request != NULL && memcmp(request->sha1, sha1, 20)) | |
963 | request = request->next; | |
964 | if (request == NULL) | |
965 | return error("Couldn't find request for %s in the queue", hex); | |
966 | ||
11f0dafe NH |
967 | if (has_sha1_file(request->sha1)) { |
968 | release_request(request); | |
969 | return 0; | |
970 | } | |
971 | ||
a7a8d378 NH |
972 | #ifdef USE_CURL_MULTI |
973 | int num_transfers; | |
1d389ab6 NH |
974 | while (request->state == WAITING) { |
975 | curl_multi_perform(curlm, &num_transfers); | |
976 | if (num_transfers < active_requests) { | |
977 | process_curl_messages(); | |
978 | process_request_queue(); | |
979 | } | |
980 | } | |
a7a8d378 NH |
981 | #else |
982 | start_request(request); | |
983 | #endif | |
6eb7ed54 | 984 | |
a7a8d378 | 985 | while (request->state == ACTIVE) { |
1d389ab6 | 986 | run_active_slot(request->slot); |
a7a8d378 NH |
987 | #ifndef USE_CURL_MULTI |
988 | request->curl_result = request->slot->curl_result; | |
989 | curl_easy_getinfo(request->slot->curl, | |
990 | CURLINFO_HTTP_CODE, | |
991 | &request->http_code); | |
992 | request->slot = NULL; | |
993 | ||
994 | /* Use alternates if necessary */ | |
995 | if (request->http_code == 404 && | |
996 | request->repo->next != NULL) { | |
997 | request->repo = request->repo->next; | |
998 | start_request(request); | |
999 | } else { | |
1000 | finish_request(request); | |
1001 | request->state = COMPLETE; | |
1002 | } | |
1003 | #endif | |
1004 | } | |
6eb7ed54 | 1005 | |
1d389ab6 NH |
1006 | if (request->state == ABORTED) { |
1007 | release_request(request); | |
1008 | return error("Request for %s aborted", hex); | |
49a0f240 | 1009 | } |
49a0f240 | 1010 | |
1d389ab6 NH |
1011 | if (request->curl_result != CURLE_OK && request->http_code != 416) { |
1012 | ret = error("%s", request->errorstr); | |
1013 | release_request(request); | |
1014 | return ret; | |
49a0f240 NH |
1015 | } |
1016 | ||
1d389ab6 NH |
1017 | if (request->zret != Z_STREAM_END) { |
1018 | ret = error("File %s (%s) corrupt\n", hex, request->url); | |
1019 | release_request(request); | |
1020 | return ret; | |
49a0f240 NH |
1021 | } |
1022 | ||
1d389ab6 NH |
1023 | if (memcmp(request->sha1, request->real_sha1, 20)) { |
1024 | release_request(request); | |
1025 | return error("File %s has bad hash\n", hex); | |
182005b9 | 1026 | } |
6eb7ed54 | 1027 | |
1d389ab6 NH |
1028 | if (request->rename < 0) { |
1029 | ret = error("unable to write sha1 filename %s: %s", | |
1030 | request->filename, | |
1031 | strerror(request->rename)); | |
1032 | release_request(request); | |
1033 | return ret; | |
6eb7ed54 | 1034 | } |
49a0f240 | 1035 | |
1d389ab6 | 1036 | release_request(request); |
6eb7ed54 DB |
1037 | return 0; |
1038 | } | |
1039 | ||
b3661567 DB |
1040 | int fetch(unsigned char *sha1) |
1041 | { | |
1042 | struct alt_base *altbase = alt; | |
1d389ab6 NH |
1043 | |
1044 | if (!fetch_object(altbase, sha1)) | |
1045 | return 0; | |
b3661567 | 1046 | while (altbase) { |
b3661567 DB |
1047 | if (!fetch_pack(altbase, sha1)) |
1048 | return 0; | |
b3661567 DB |
1049 | altbase = altbase->next; |
1050 | } | |
1051 | return error("Unable to find %s under %s\n", sha1_to_hex(sha1), | |
1d389ab6 | 1052 | alt->base); |
b3661567 DB |
1053 | } |
1054 | ||
94fa447a JH |
1055 | static inline int needs_quote(int ch) |
1056 | { | |
1057 | switch (ch) { | |
1058 | case '/': case '-': case '.': | |
1059 | case 'A'...'Z': case 'a'...'z': case '0'...'9': | |
1060 | return 0; | |
1061 | default: | |
1062 | return 1; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | static inline int hex(int v) | |
1067 | { | |
1068 | if (v < 10) return '0' + v; | |
1069 | else return 'A' + v - 10; | |
1070 | } | |
1071 | ||
1072 | static char *quote_ref_url(const char *base, const char *ref) | |
1073 | { | |
1074 | const char *cp; | |
1075 | char *dp, *qref; | |
1076 | int len, baselen, ch; | |
1077 | ||
1078 | baselen = strlen(base); | |
1079 | len = baselen + 6; /* "refs/" + NUL */ | |
1080 | for (cp = ref; (ch = *cp) != 0; cp++, len++) | |
1081 | if (needs_quote(ch)) | |
1082 | len += 2; /* extra two hex plus replacement % */ | |
1083 | qref = xmalloc(len); | |
1084 | memcpy(qref, base, baselen); | |
1085 | memcpy(qref + baselen, "refs/", 5); | |
1086 | for (cp = ref, dp = qref + baselen + 5; (ch = *cp) != 0; cp++) { | |
1087 | if (needs_quote(ch)) { | |
1088 | *dp++ = '%'; | |
1089 | *dp++ = hex((ch >> 4) & 0xF); | |
1090 | *dp++ = hex(ch & 0xF); | |
1091 | } | |
1092 | else | |
1093 | *dp++ = ch; | |
1094 | } | |
1095 | *dp = 0; | |
1096 | ||
1097 | return qref; | |
1098 | } | |
1099 | ||
cd541a68 DB |
1100 | int fetch_ref(char *ref, unsigned char *sha1) |
1101 | { | |
94fa447a | 1102 | char *url; |
fa3e0655 DB |
1103 | char hex[42]; |
1104 | struct buffer buffer; | |
1d389ab6 NH |
1105 | char *base = alt->base; |
1106 | struct active_request_slot *slot; | |
fa3e0655 DB |
1107 | buffer.size = 41; |
1108 | buffer.posn = 0; | |
1109 | buffer.buffer = hex; | |
1110 | hex[41] = '\0'; | |
1111 | ||
94fa447a | 1112 | url = quote_ref_url(base, ref); |
1d389ab6 NH |
1113 | slot = get_active_slot(); |
1114 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
1115 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
1116 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL); | |
1117 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
1118 | if (start_active_slot(slot)) { | |
1119 | run_active_slot(slot); | |
1120 | if (slot->curl_result != CURLE_OK) | |
1121 | return error("Couldn't get %s for %s\n%s", | |
1122 | url, ref, curl_errorstr); | |
1123 | } else { | |
1124 | return error("Unable to start request"); | |
1125 | } | |
fa3e0655 DB |
1126 | |
1127 | hex[40] = '\0'; | |
1128 | get_sha1_hex(hex, sha1); | |
1129 | return 0; | |
cd541a68 DB |
1130 | } |
1131 | ||
6eb7ed54 DB |
1132 | int main(int argc, char **argv) |
1133 | { | |
1134 | char *commit_id; | |
1135 | char *url; | |
1136 | int arg = 1; | |
1d389ab6 | 1137 | struct active_request_slot *slot; |
6eb7ed54 DB |
1138 | |
1139 | while (arg < argc && argv[arg][0] == '-') { | |
1140 | if (argv[arg][1] == 't') { | |
4250a5e5 | 1141 | get_tree = 1; |
6eb7ed54 | 1142 | } else if (argv[arg][1] == 'c') { |
4250a5e5 | 1143 | get_history = 1; |
6eb7ed54 | 1144 | } else if (argv[arg][1] == 'a') { |
4250a5e5 DB |
1145 | get_all = 1; |
1146 | get_tree = 1; | |
1147 | get_history = 1; | |
e78d9772 JH |
1148 | } else if (argv[arg][1] == 'v') { |
1149 | get_verbosely = 1; | |
fa3e0655 DB |
1150 | } else if (argv[arg][1] == 'w') { |
1151 | write_ref = argv[arg + 1]; | |
1152 | arg++; | |
820eca68 DB |
1153 | } else if (!strcmp(argv[arg], "--recover")) { |
1154 | get_recover = 1; | |
6eb7ed54 DB |
1155 | } |
1156 | arg++; | |
1157 | } | |
1158 | if (argc < arg + 2) { | |
215a7ad1 | 1159 | usage("git-http-fetch [-c] [-t] [-a] [-d] [-v] [--recover] [-w ref] commit-id url"); |
6eb7ed54 DB |
1160 | return 1; |
1161 | } | |
1162 | commit_id = argv[arg]; | |
1163 | url = argv[arg + 1]; | |
1164 | ||
6eb7ed54 DB |
1165 | curl_global_init(CURL_GLOBAL_ALL); |
1166 | ||
a7a8d378 | 1167 | #ifdef USE_CURL_MULTI |
38079239 NH |
1168 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); |
1169 | if (http_max_requests != NULL) | |
1170 | max_requests = atoi(http_max_requests); | |
38079239 | 1171 | |
1d389ab6 NH |
1172 | curlm = curl_multi_init(); |
1173 | if (curlm == NULL) { | |
1174 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
1175 | return 1; | |
1176 | } | |
a7a8d378 | 1177 | #endif |
d402d556 NH |
1178 | |
1179 | if (getenv("GIT_SSL_NO_VERIFY")) | |
1180 | curl_ssl_verify = 0; | |
1181 | ||
1182 | ssl_cert = getenv("GIT_SSL_CERT"); | |
1183 | #if LIBCURL_VERSION_NUM >= 0x070902 | |
1184 | ssl_key = getenv("GIT_SSL_KEY"); | |
1185 | #endif | |
1186 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
1187 | ssl_capath = getenv("GIT_SSL_CAPATH"); | |
1188 | #endif | |
1189 | ssl_cainfo = getenv("GIT_SSL_CAINFO"); | |
1190 | ||
1191 | git_config(http_options); | |
1192 | ||
1193 | if (curl_ssl_verify == -1) | |
1194 | curl_ssl_verify = 1; | |
1195 | ||
1196 | #ifdef USE_CURL_MULTI | |
1197 | if (max_requests < 1) | |
1198 | max_requests = DEFAULT_MAX_REQUESTS; | |
1199 | #endif | |
1200 | ||
03126006 | 1201 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
1db69b57 | 1202 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
49a0f240 | 1203 | no_range_header = curl_slist_append(no_range_header, "Range:"); |
6eb7ed54 | 1204 | |
1d389ab6 NH |
1205 | curl_default = curl_easy_init(); |
1206 | ||
1d389ab6 | 1207 | curl_easy_setopt(curl_default, CURLOPT_SSL_VERIFYPEER, curl_ssl_verify); |
9f6cf65e | 1208 | #if LIBCURL_VERSION_NUM >= 0x070907 |
1d389ab6 | 1209 | curl_easy_setopt(curl_default, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); |
9f6cf65e | 1210 | #endif |
3dcb90f5 | 1211 | |
d402d556 | 1212 | if (ssl_cert != NULL) |
1d389ab6 | 1213 | curl_easy_setopt(curl_default, CURLOPT_SSLCERT, ssl_cert); |
d402d556 | 1214 | if (ssl_key != NULL) |
1d389ab6 | 1215 | curl_easy_setopt(curl_default, CURLOPT_SSLKEY, ssl_key); |
d402d556 | 1216 | if (ssl_capath != NULL) |
1d389ab6 | 1217 | curl_easy_setopt(curl_default, CURLOPT_CAPATH, ssl_capath); |
d402d556 | 1218 | if (ssl_cainfo != NULL) |
1d389ab6 | 1219 | curl_easy_setopt(curl_default, CURLOPT_CAINFO, ssl_cainfo); |
d402d556 | 1220 | |
1d389ab6 | 1221 | curl_easy_setopt(curl_default, CURLOPT_FAILONERROR, 1); |
5acb6de1 | 1222 | |
b3661567 DB |
1223 | alt = xmalloc(sizeof(*alt)); |
1224 | alt->base = url; | |
1225 | alt->got_indices = 0; | |
1226 | alt->packs = NULL; | |
1227 | alt->next = NULL; | |
1d389ab6 | 1228 | fetch_alternates(alt->base); |
6eb7ed54 | 1229 | |
4250a5e5 | 1230 | if (pull(commit_id)) |
6eb7ed54 DB |
1231 | return 1; |
1232 | ||
03126006 | 1233 | curl_slist_free_all(pragma_header); |
1db69b57 | 1234 | curl_slist_free_all(no_pragma_header); |
1d389ab6 NH |
1235 | curl_slist_free_all(no_range_header); |
1236 | curl_easy_cleanup(curl_default); | |
1237 | slot = active_queue_head; | |
1238 | while (slot != NULL) { | |
1239 | curl_easy_cleanup(slot->curl); | |
1240 | slot = slot->next; | |
1241 | } | |
a7a8d378 | 1242 | #ifdef USE_CURL_MULTI |
1d389ab6 | 1243 | curl_multi_cleanup(curlm); |
a7a8d378 | 1244 | #endif |
6eb7ed54 DB |
1245 | curl_global_cleanup(); |
1246 | return 0; | |
1247 | } |