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Commit | Line | Data |
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a2d725b7 DB |
1 | #include "cache.h" |
2 | #include "remote.h" | |
3 | #include "strbuf.h" | |
4 | #include "walker.h" | |
5 | #include "http.h" | |
d01a8e32 | 6 | #include "exec_cmd.h" |
ae4efe19 | 7 | #include "run-command.h" |
97cc7bc4 | 8 | #include "pkt-line.h" |
de1a2fdd | 9 | #include "sideband.h" |
a2d725b7 | 10 | |
37a8768f | 11 | static struct remote *remote; |
d8fab072 | 12 | static const char *url; /* always ends with a trailing slash */ |
37a8768f | 13 | |
ef08ef9e SP |
14 | struct options { |
15 | int verbosity; | |
16 | unsigned long depth; | |
17 | unsigned progress : 1, | |
ae4efe19 | 18 | followtags : 1, |
de1a2fdd SP |
19 | dry_run : 1, |
20 | thin : 1; | |
ef08ef9e SP |
21 | }; |
22 | static struct options options; | |
23 | ||
ef08ef9e SP |
24 | static int set_option(const char *name, const char *value) |
25 | { | |
26 | if (!strcmp(name, "verbosity")) { | |
27 | char *end; | |
28 | int v = strtol(value, &end, 10); | |
29 | if (value == end || *end) | |
30 | return -1; | |
31 | options.verbosity = v; | |
32 | return 0; | |
33 | } | |
34 | else if (!strcmp(name, "progress")) { | |
35 | if (!strcmp(value, "true")) | |
36 | options.progress = 1; | |
37 | else if (!strcmp(value, "false")) | |
38 | options.progress = 0; | |
39 | else | |
40 | return -1; | |
249b2004 | 41 | return 0; |
ef08ef9e SP |
42 | } |
43 | else if (!strcmp(name, "depth")) { | |
44 | char *end; | |
45 | unsigned long v = strtoul(value, &end, 10); | |
46 | if (value == end || *end) | |
47 | return -1; | |
48 | options.depth = v; | |
249b2004 | 49 | return 0; |
ef08ef9e SP |
50 | } |
51 | else if (!strcmp(name, "followtags")) { | |
52 | if (!strcmp(value, "true")) | |
53 | options.followtags = 1; | |
54 | else if (!strcmp(value, "false")) | |
55 | options.followtags = 0; | |
56 | else | |
57 | return -1; | |
249b2004 | 58 | return 0; |
ef08ef9e | 59 | } |
ae4efe19 SP |
60 | else if (!strcmp(name, "dry-run")) { |
61 | if (!strcmp(value, "true")) | |
62 | options.dry_run = 1; | |
63 | else if (!strcmp(value, "false")) | |
64 | options.dry_run = 0; | |
65 | else | |
66 | return -1; | |
67 | return 0; | |
68 | } | |
ef08ef9e SP |
69 | else { |
70 | return 1 /* unsupported */; | |
71 | } | |
72 | } | |
73 | ||
97cc7bc4 SP |
74 | struct discovery { |
75 | const char *service; | |
76 | char *buf_alloc; | |
77 | char *buf; | |
78 | size_t len; | |
79 | unsigned proto_git : 1; | |
80 | }; | |
81 | static struct discovery *last_discovery; | |
82 | ||
83 | static void free_discovery(struct discovery *d) | |
84 | { | |
85 | if (d) { | |
86 | if (d == last_discovery) | |
87 | last_discovery = NULL; | |
88 | free(d->buf_alloc); | |
89 | free(d); | |
90 | } | |
91 | } | |
92 | ||
93 | static struct discovery* discover_refs(const char *service) | |
a2d725b7 DB |
94 | { |
95 | struct strbuf buffer = STRBUF_INIT; | |
97cc7bc4 | 96 | struct discovery *last = last_discovery; |
a2d725b7 | 97 | char *refs_url; |
703e6e76 | 98 | int http_ret, is_http = 0, proto_git_candidate = 1; |
a2d725b7 | 99 | |
97cc7bc4 SP |
100 | if (last && !strcmp(service, last->service)) |
101 | return last; | |
102 | free_discovery(last); | |
a2d725b7 | 103 | |
d8fab072 | 104 | strbuf_addf(&buffer, "%sinfo/refs", url); |
97cc7bc4 SP |
105 | if (!prefixcmp(url, "http://") || !prefixcmp(url, "https://")) { |
106 | is_http = 1; | |
107 | if (!strchr(url, '?')) | |
108 | strbuf_addch(&buffer, '?'); | |
109 | else | |
110 | strbuf_addch(&buffer, '&'); | |
111 | strbuf_addf(&buffer, "service=%s", service); | |
112 | } | |
113 | refs_url = strbuf_detach(&buffer, NULL); | |
a2d725b7 DB |
114 | |
115 | http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE); | |
703e6e76 TRC |
116 | |
117 | /* try again with "plain" url (no ? or & appended) */ | |
118 | if (http_ret != HTTP_OK) { | |
119 | free(refs_url); | |
120 | strbuf_reset(&buffer); | |
121 | ||
122 | proto_git_candidate = 0; | |
d8fab072 | 123 | strbuf_addf(&buffer, "%sinfo/refs", url); |
703e6e76 TRC |
124 | refs_url = strbuf_detach(&buffer, NULL); |
125 | ||
126 | http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE); | |
127 | } | |
128 | ||
a2d725b7 DB |
129 | switch (http_ret) { |
130 | case HTTP_OK: | |
131 | break; | |
132 | case HTTP_MISSING_TARGET: | |
133 | die("%s not found: did you run git update-server-info on the" | |
134 | " server?", refs_url); | |
42653c09 SC |
135 | case HTTP_NOAUTH: |
136 | die("Authentication failed"); | |
a2d725b7 DB |
137 | default: |
138 | http_error(refs_url, http_ret); | |
139 | die("HTTP request failed"); | |
140 | } | |
141 | ||
97cc7bc4 SP |
142 | last= xcalloc(1, sizeof(*last_discovery)); |
143 | last->service = service; | |
144 | last->buf_alloc = strbuf_detach(&buffer, &last->len); | |
145 | last->buf = last->buf_alloc; | |
146 | ||
703e6e76 TRC |
147 | if (is_http && proto_git_candidate |
148 | && 5 <= last->len && last->buf[4] == '#') { | |
97cc7bc4 SP |
149 | /* smart HTTP response; validate that the service |
150 | * pkt-line matches our request. | |
151 | */ | |
152 | struct strbuf exp = STRBUF_INIT; | |
153 | ||
154 | if (packet_get_line(&buffer, &last->buf, &last->len) <= 0) | |
155 | die("%s has invalid packet header", refs_url); | |
156 | if (buffer.len && buffer.buf[buffer.len - 1] == '\n') | |
157 | strbuf_setlen(&buffer, buffer.len - 1); | |
158 | ||
159 | strbuf_addf(&exp, "# service=%s", service); | |
160 | if (strbuf_cmp(&exp, &buffer)) | |
161 | die("invalid server response; got '%s'", buffer.buf); | |
162 | strbuf_release(&exp); | |
163 | ||
164 | /* The header can include additional metadata lines, up | |
165 | * until a packet flush marker. Ignore these now, but | |
166 | * in the future we might start to scan them. | |
167 | */ | |
168 | strbuf_reset(&buffer); | |
169 | while (packet_get_line(&buffer, &last->buf, &last->len) > 0) | |
170 | strbuf_reset(&buffer); | |
171 | ||
172 | last->proto_git = 1; | |
173 | } | |
174 | ||
175 | free(refs_url); | |
176 | strbuf_release(&buffer); | |
177 | last_discovery = last; | |
178 | return last; | |
179 | } | |
180 | ||
ae6a5609 | 181 | static int write_discovery(int in, int out, void *data) |
97cc7bc4 SP |
182 | { |
183 | struct discovery *heads = data; | |
184 | int err = 0; | |
ae6a5609 | 185 | if (write_in_full(out, heads->buf, heads->len) != heads->len) |
97cc7bc4 | 186 | err = 1; |
ae6a5609 | 187 | close(out); |
97cc7bc4 SP |
188 | return err; |
189 | } | |
190 | ||
191 | static struct ref *parse_git_refs(struct discovery *heads) | |
192 | { | |
193 | struct ref *list = NULL; | |
194 | struct async async; | |
195 | ||
196 | memset(&async, 0, sizeof(async)); | |
197 | async.proc = write_discovery; | |
198 | async.data = heads; | |
ae6a5609 | 199 | async.out = -1; |
97cc7bc4 SP |
200 | |
201 | if (start_async(&async)) | |
202 | die("cannot start thread to parse advertised refs"); | |
203 | get_remote_heads(async.out, &list, 0, NULL, 0, NULL); | |
204 | close(async.out); | |
205 | if (finish_async(&async)) | |
206 | die("ref parsing thread failed"); | |
207 | return list; | |
208 | } | |
209 | ||
210 | static struct ref *parse_info_refs(struct discovery *heads) | |
211 | { | |
212 | char *data, *start, *mid; | |
213 | char *ref_name; | |
214 | int i = 0; | |
215 | ||
216 | struct ref *refs = NULL; | |
217 | struct ref *ref = NULL; | |
218 | struct ref *last_ref = NULL; | |
219 | ||
220 | data = heads->buf; | |
a2d725b7 DB |
221 | start = NULL; |
222 | mid = data; | |
97cc7bc4 | 223 | while (i < heads->len) { |
a2d725b7 DB |
224 | if (!start) { |
225 | start = &data[i]; | |
226 | } | |
227 | if (data[i] == '\t') | |
228 | mid = &data[i]; | |
229 | if (data[i] == '\n') { | |
230 | data[i] = 0; | |
231 | ref_name = mid + 1; | |
232 | ref = xmalloc(sizeof(struct ref) + | |
233 | strlen(ref_name) + 1); | |
234 | memset(ref, 0, sizeof(struct ref)); | |
235 | strcpy(ref->name, ref_name); | |
236 | get_sha1_hex(start, ref->old_sha1); | |
237 | if (!refs) | |
238 | refs = ref; | |
239 | if (last_ref) | |
240 | last_ref->next = ref; | |
241 | last_ref = ref; | |
242 | start = NULL; | |
243 | } | |
244 | i++; | |
245 | } | |
246 | ||
a2d725b7 | 247 | ref = alloc_ref("HEAD"); |
aec49756 | 248 | if (!http_fetch_ref(url, ref) && |
a2d725b7 DB |
249 | !resolve_remote_symref(ref, refs)) { |
250 | ref->next = refs; | |
251 | refs = ref; | |
252 | } else { | |
253 | free(ref); | |
254 | } | |
255 | ||
a2d725b7 DB |
256 | return refs; |
257 | } | |
258 | ||
97cc7bc4 SP |
259 | static struct ref *get_refs(int for_push) |
260 | { | |
261 | struct discovery *heads; | |
262 | ||
263 | if (for_push) | |
264 | heads = discover_refs("git-receive-pack"); | |
265 | else | |
266 | heads = discover_refs("git-upload-pack"); | |
267 | ||
268 | if (heads->proto_git) | |
269 | return parse_git_refs(heads); | |
270 | return parse_info_refs(heads); | |
271 | } | |
272 | ||
ae4efe19 SP |
273 | static void output_refs(struct ref *refs) |
274 | { | |
275 | struct ref *posn; | |
276 | for (posn = refs; posn; posn = posn->next) { | |
277 | if (posn->symref) | |
278 | printf("@%s %s\n", posn->symref, posn->name); | |
279 | else | |
280 | printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name); | |
281 | } | |
282 | printf("\n"); | |
283 | fflush(stdout); | |
284 | free_refs(refs); | |
285 | } | |
286 | ||
de1a2fdd SP |
287 | struct rpc_state { |
288 | const char *service_name; | |
289 | const char **argv; | |
290 | char *service_url; | |
291 | char *hdr_content_type; | |
292 | char *hdr_accept; | |
293 | char *buf; | |
294 | size_t alloc; | |
295 | size_t len; | |
296 | size_t pos; | |
297 | int in; | |
298 | int out; | |
299 | struct strbuf result; | |
b8538603 | 300 | unsigned gzip_request : 1; |
6c81a990 | 301 | unsigned initial_buffer : 1; |
de1a2fdd SP |
302 | }; |
303 | ||
304 | static size_t rpc_out(void *ptr, size_t eltsize, | |
305 | size_t nmemb, void *buffer_) | |
306 | { | |
307 | size_t max = eltsize * nmemb; | |
308 | struct rpc_state *rpc = buffer_; | |
309 | size_t avail = rpc->len - rpc->pos; | |
310 | ||
311 | if (!avail) { | |
6c81a990 | 312 | rpc->initial_buffer = 0; |
de1a2fdd SP |
313 | avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc); |
314 | if (!avail) | |
315 | return 0; | |
316 | rpc->pos = 0; | |
317 | rpc->len = avail; | |
318 | } | |
319 | ||
48310608 | 320 | if (max < avail) |
de1a2fdd SP |
321 | avail = max; |
322 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
323 | rpc->pos += avail; | |
324 | return avail; | |
325 | } | |
326 | ||
6c81a990 | 327 | #ifndef NO_CURL_IOCTL |
5092d3ec | 328 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
329 | { |
330 | struct rpc_state *rpc = clientp; | |
331 | ||
332 | switch (cmd) { | |
333 | case CURLIOCMD_NOP: | |
334 | return CURLIOE_OK; | |
335 | ||
336 | case CURLIOCMD_RESTARTREAD: | |
337 | if (rpc->initial_buffer) { | |
338 | rpc->pos = 0; | |
339 | return CURLIOE_OK; | |
340 | } | |
341 | fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n"); | |
342 | return CURLIOE_FAILRESTART; | |
343 | ||
344 | default: | |
345 | return CURLIOE_UNKNOWNCMD; | |
346 | } | |
347 | } | |
348 | #endif | |
349 | ||
de1a2fdd SP |
350 | static size_t rpc_in(const void *ptr, size_t eltsize, |
351 | size_t nmemb, void *buffer_) | |
352 | { | |
353 | size_t size = eltsize * nmemb; | |
354 | struct rpc_state *rpc = buffer_; | |
355 | write_or_die(rpc->in, ptr, size); | |
356 | return size; | |
357 | } | |
358 | ||
206b099d SP |
359 | static int run_slot(struct active_request_slot *slot) |
360 | { | |
361 | int err = 0; | |
362 | struct slot_results results; | |
363 | ||
364 | slot->results = &results; | |
365 | slot->curl_result = curl_easy_perform(slot->curl); | |
366 | finish_active_slot(slot); | |
367 | ||
368 | if (results.curl_result != CURLE_OK) { | |
369 | err |= error("RPC failed; result=%d, HTTP code = %ld", | |
370 | results.curl_result, results.http_code); | |
371 | } | |
372 | ||
373 | return err; | |
374 | } | |
375 | ||
376 | static int probe_rpc(struct rpc_state *rpc) | |
377 | { | |
378 | struct active_request_slot *slot; | |
379 | struct curl_slist *headers = NULL; | |
380 | struct strbuf buf = STRBUF_INIT; | |
381 | int err; | |
382 | ||
383 | slot = get_active_slot(); | |
384 | ||
385 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
386 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
387 | ||
388 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
389 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
390 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); | |
391 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); | |
392 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000"); | |
393 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4); | |
394 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
395 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
396 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf); | |
397 | ||
398 | err = run_slot(slot); | |
399 | ||
400 | curl_slist_free_all(headers); | |
401 | strbuf_release(&buf); | |
402 | return err; | |
403 | } | |
404 | ||
de1a2fdd SP |
405 | static int post_rpc(struct rpc_state *rpc) |
406 | { | |
407 | struct active_request_slot *slot; | |
de1a2fdd | 408 | struct curl_slist *headers = NULL; |
b8538603 SP |
409 | int use_gzip = rpc->gzip_request; |
410 | char *gzip_body = NULL; | |
206b099d | 411 | int err, large_request = 0; |
de1a2fdd SP |
412 | |
413 | /* Try to load the entire request, if we can fit it into the | |
414 | * allocated buffer space we can use HTTP/1.0 and avoid the | |
415 | * chunked encoding mess. | |
416 | */ | |
417 | while (1) { | |
418 | size_t left = rpc->alloc - rpc->len; | |
419 | char *buf = rpc->buf + rpc->len; | |
420 | int n; | |
421 | ||
422 | if (left < LARGE_PACKET_MAX) { | |
423 | large_request = 1; | |
b8538603 | 424 | use_gzip = 0; |
de1a2fdd SP |
425 | break; |
426 | } | |
427 | ||
428 | n = packet_read_line(rpc->out, buf, left); | |
429 | if (!n) | |
430 | break; | |
431 | rpc->len += n; | |
432 | } | |
433 | ||
206b099d SP |
434 | if (large_request) { |
435 | err = probe_rpc(rpc); | |
436 | if (err) | |
437 | return err; | |
438 | } | |
439 | ||
de1a2fdd | 440 | slot = get_active_slot(); |
de1a2fdd | 441 | |
de1a2fdd | 442 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
d21f9794 | 443 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); |
de1a2fdd | 444 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); |
b8538603 | 445 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); |
de1a2fdd SP |
446 | |
447 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
448 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
959dfcf4 | 449 | headers = curl_slist_append(headers, "Expect:"); |
de1a2fdd SP |
450 | |
451 | if (large_request) { | |
452 | /* The request body is large and the size cannot be predicted. | |
453 | * We must use chunked encoding to send it. | |
454 | */ | |
de1a2fdd | 455 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); |
6c81a990 | 456 | rpc->initial_buffer = 1; |
de1a2fdd SP |
457 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
458 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
459 | #ifndef NO_CURL_IOCTL |
460 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
461 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
462 | #endif | |
de1a2fdd SP |
463 | if (options.verbosity > 1) { |
464 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
465 | fflush(stderr); | |
466 | } | |
467 | ||
b8538603 SP |
468 | } else if (use_gzip && 1024 < rpc->len) { |
469 | /* The client backend isn't giving us compressed data so | |
470 | * we can try to deflate it ourselves, this may save on. | |
471 | * the transfer time. | |
472 | */ | |
473 | size_t size; | |
474 | z_stream stream; | |
475 | int ret; | |
476 | ||
477 | memset(&stream, 0, sizeof(stream)); | |
478 | ret = deflateInit2(&stream, Z_BEST_COMPRESSION, | |
479 | Z_DEFLATED, (15 + 16), | |
480 | 8, Z_DEFAULT_STRATEGY); | |
481 | if (ret != Z_OK) | |
482 | die("cannot deflate request; zlib init error %d", ret); | |
483 | size = deflateBound(&stream, rpc->len); | |
484 | gzip_body = xmalloc(size); | |
485 | ||
486 | stream.next_in = (unsigned char *)rpc->buf; | |
487 | stream.avail_in = rpc->len; | |
488 | stream.next_out = (unsigned char *)gzip_body; | |
489 | stream.avail_out = size; | |
490 | ||
491 | ret = deflate(&stream, Z_FINISH); | |
492 | if (ret != Z_STREAM_END) | |
493 | die("cannot deflate request; zlib deflate error %d", ret); | |
494 | ||
495 | ret = deflateEnd(&stream); | |
496 | if (ret != Z_OK) | |
497 | die("cannot deflate request; zlib end error %d", ret); | |
498 | ||
499 | size = stream.total_out; | |
500 | ||
501 | headers = curl_slist_append(headers, "Content-Encoding: gzip"); | |
502 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
503 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size); | |
504 | ||
505 | if (options.verbosity > 1) { | |
506 | fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n", | |
507 | rpc->service_name, | |
508 | (unsigned long)rpc->len, (unsigned long)size); | |
509 | fflush(stderr); | |
510 | } | |
de1a2fdd SP |
511 | } else { |
512 | /* We know the complete request size in advance, use the | |
513 | * more normal Content-Length approach. | |
514 | */ | |
515 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf); | |
516 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len); | |
517 | if (options.verbosity > 1) { | |
518 | fprintf(stderr, "POST %s (%lu bytes)\n", | |
519 | rpc->service_name, (unsigned long)rpc->len); | |
520 | fflush(stderr); | |
521 | } | |
522 | } | |
523 | ||
524 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
525 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in); | |
526 | curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc); | |
527 | ||
206b099d | 528 | err = run_slot(slot); |
de1a2fdd SP |
529 | |
530 | curl_slist_free_all(headers); | |
b8538603 | 531 | free(gzip_body); |
de1a2fdd SP |
532 | return err; |
533 | } | |
534 | ||
535 | static int rpc_service(struct rpc_state *rpc, struct discovery *heads) | |
536 | { | |
537 | const char *svc = rpc->service_name; | |
538 | struct strbuf buf = STRBUF_INIT; | |
539 | struct child_process client; | |
540 | int err = 0; | |
541 | ||
de1a2fdd SP |
542 | memset(&client, 0, sizeof(client)); |
543 | client.in = -1; | |
544 | client.out = -1; | |
545 | client.git_cmd = 1; | |
546 | client.argv = rpc->argv; | |
547 | if (start_command(&client)) | |
548 | exit(1); | |
549 | if (heads) | |
550 | write_or_die(client.in, heads->buf, heads->len); | |
551 | ||
552 | rpc->alloc = http_post_buffer; | |
553 | rpc->buf = xmalloc(rpc->alloc); | |
554 | rpc->in = client.in; | |
555 | rpc->out = client.out; | |
556 | strbuf_init(&rpc->result, 0); | |
557 | ||
d8fab072 | 558 | strbuf_addf(&buf, "%s%s", url, svc); |
de1a2fdd SP |
559 | rpc->service_url = strbuf_detach(&buf, NULL); |
560 | ||
561 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
562 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
563 | ||
8efa5f62 | 564 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
565 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
566 | ||
567 | while (!err) { | |
568 | int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc); | |
569 | if (!n) | |
570 | break; | |
571 | rpc->pos = 0; | |
572 | rpc->len = n; | |
573 | err |= post_rpc(rpc); | |
574 | } | |
de1a2fdd SP |
575 | |
576 | close(client.in); | |
de1a2fdd | 577 | client.in = -1; |
b4ee10f6 SP |
578 | strbuf_read(&rpc->result, client.out, 0); |
579 | ||
580 | close(client.out); | |
de1a2fdd SP |
581 | client.out = -1; |
582 | ||
583 | err |= finish_command(&client); | |
584 | free(rpc->service_url); | |
585 | free(rpc->hdr_content_type); | |
586 | free(rpc->hdr_accept); | |
587 | free(rpc->buf); | |
588 | strbuf_release(&buf); | |
589 | return err; | |
590 | } | |
591 | ||
292ce46b SP |
592 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
593 | { | |
26e1e0b2 | 594 | struct walker *walker; |
292ce46b SP |
595 | char **targets = xmalloc(nr_heads * sizeof(char*)); |
596 | int ret, i; | |
597 | ||
249b2004 SP |
598 | if (options.depth) |
599 | die("dumb http transport does not support --depth"); | |
292ce46b SP |
600 | for (i = 0; i < nr_heads; i++) |
601 | targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
602 | ||
26e1e0b2 | 603 | walker = get_http_walker(url); |
292ce46b SP |
604 | walker->get_all = 1; |
605 | walker->get_tree = 1; | |
606 | walker->get_history = 1; | |
ef08ef9e | 607 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
608 | walker->get_recover = 0; |
609 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
26e1e0b2 | 610 | walker_free(walker); |
292ce46b SP |
611 | |
612 | for (i = 0; i < nr_heads; i++) | |
613 | free(targets[i]); | |
614 | free(targets); | |
615 | ||
616 | return ret ? error("Fetch failed.") : 0; | |
617 | } | |
618 | ||
249b2004 SP |
619 | static int fetch_git(struct discovery *heads, |
620 | int nr_heads, struct ref **to_fetch) | |
621 | { | |
622 | struct rpc_state rpc; | |
623 | char *depth_arg = NULL; | |
624 | const char **argv; | |
625 | int argc = 0, i, err; | |
626 | ||
627 | argv = xmalloc((15 + nr_heads) * sizeof(char*)); | |
628 | argv[argc++] = "fetch-pack"; | |
629 | argv[argc++] = "--stateless-rpc"; | |
630 | argv[argc++] = "--lock-pack"; | |
631 | if (options.followtags) | |
632 | argv[argc++] = "--include-tag"; | |
633 | if (options.thin) | |
634 | argv[argc++] = "--thin"; | |
635 | if (options.verbosity >= 3) { | |
636 | argv[argc++] = "-v"; | |
637 | argv[argc++] = "-v"; | |
638 | } | |
639 | if (!options.progress) | |
640 | argv[argc++] = "--no-progress"; | |
641 | if (options.depth) { | |
642 | struct strbuf buf = STRBUF_INIT; | |
643 | strbuf_addf(&buf, "--depth=%lu", options.depth); | |
644 | depth_arg = strbuf_detach(&buf, NULL); | |
645 | argv[argc++] = depth_arg; | |
646 | } | |
647 | argv[argc++] = url; | |
648 | for (i = 0; i < nr_heads; i++) { | |
649 | struct ref *ref = to_fetch[i]; | |
650 | if (!ref->name || !*ref->name) | |
651 | die("cannot fetch by sha1 over smart http"); | |
652 | argv[argc++] = ref->name; | |
653 | } | |
654 | argv[argc++] = NULL; | |
655 | ||
656 | memset(&rpc, 0, sizeof(rpc)); | |
657 | rpc.service_name = "git-upload-pack", | |
658 | rpc.argv = argv; | |
b8538603 | 659 | rpc.gzip_request = 1; |
249b2004 SP |
660 | |
661 | err = rpc_service(&rpc, heads); | |
662 | if (rpc.result.len) | |
663 | safe_write(1, rpc.result.buf, rpc.result.len); | |
664 | strbuf_release(&rpc.result); | |
665 | free(argv); | |
666 | free(depth_arg); | |
667 | return err; | |
668 | } | |
669 | ||
670 | static int fetch(int nr_heads, struct ref **to_fetch) | |
671 | { | |
672 | struct discovery *d = discover_refs("git-upload-pack"); | |
673 | if (d->proto_git) | |
674 | return fetch_git(d, nr_heads, to_fetch); | |
675 | else | |
676 | return fetch_dumb(nr_heads, to_fetch); | |
677 | } | |
678 | ||
292ce46b SP |
679 | static void parse_fetch(struct strbuf *buf) |
680 | { | |
681 | struct ref **to_fetch = NULL; | |
682 | struct ref *list_head = NULL; | |
683 | struct ref **list = &list_head; | |
684 | int alloc_heads = 0, nr_heads = 0; | |
685 | ||
686 | do { | |
687 | if (!prefixcmp(buf->buf, "fetch ")) { | |
688 | char *p = buf->buf + strlen("fetch "); | |
689 | char *name; | |
690 | struct ref *ref; | |
691 | unsigned char old_sha1[20]; | |
692 | ||
693 | if (strlen(p) < 40 || get_sha1_hex(p, old_sha1)) | |
694 | die("protocol error: expected sha/ref, got %s'", p); | |
695 | if (p[40] == ' ') | |
696 | name = p + 41; | |
697 | else if (!p[40]) | |
698 | name = ""; | |
699 | else | |
700 | die("protocol error: expected sha/ref, got %s'", p); | |
701 | ||
702 | ref = alloc_ref(name); | |
703 | hashcpy(ref->old_sha1, old_sha1); | |
704 | ||
705 | *list = ref; | |
706 | list = &ref->next; | |
707 | ||
708 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
709 | to_fetch[nr_heads++] = ref; | |
710 | } | |
711 | else | |
712 | die("http transport does not support %s", buf->buf); | |
713 | ||
714 | strbuf_reset(buf); | |
715 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
716 | return; | |
717 | if (!*buf->buf) | |
718 | break; | |
719 | } while (1); | |
720 | ||
249b2004 | 721 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
722 | exit(128); /* error already reported */ |
723 | free_refs(list_head); | |
724 | free(to_fetch); | |
725 | ||
726 | printf("\n"); | |
727 | fflush(stdout); | |
728 | strbuf_reset(buf); | |
729 | } | |
730 | ||
ae4efe19 SP |
731 | static int push_dav(int nr_spec, char **specs) |
732 | { | |
733 | const char **argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
734 | int argc = 0, i; | |
735 | ||
736 | argv[argc++] = "http-push"; | |
737 | argv[argc++] = "--helper-status"; | |
738 | if (options.dry_run) | |
739 | argv[argc++] = "--dry-run"; | |
740 | if (options.verbosity > 1) | |
741 | argv[argc++] = "--verbose"; | |
742 | argv[argc++] = url; | |
743 | for (i = 0; i < nr_spec; i++) | |
744 | argv[argc++] = specs[i]; | |
745 | argv[argc++] = NULL; | |
746 | ||
747 | if (run_command_v_opt(argv, RUN_GIT_CMD)) | |
748 | die("git-%s failed", argv[0]); | |
749 | free(argv); | |
750 | return 0; | |
751 | } | |
752 | ||
de1a2fdd SP |
753 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
754 | { | |
755 | struct rpc_state rpc; | |
756 | const char **argv; | |
757 | int argc = 0, i, err; | |
758 | ||
759 | argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
760 | argv[argc++] = "send-pack"; | |
761 | argv[argc++] = "--stateless-rpc"; | |
762 | argv[argc++] = "--helper-status"; | |
763 | if (options.thin) | |
764 | argv[argc++] = "--thin"; | |
765 | if (options.dry_run) | |
766 | argv[argc++] = "--dry-run"; | |
767 | if (options.verbosity > 1) | |
768 | argv[argc++] = "--verbose"; | |
769 | argv[argc++] = url; | |
770 | for (i = 0; i < nr_spec; i++) | |
771 | argv[argc++] = specs[i]; | |
772 | argv[argc++] = NULL; | |
773 | ||
774 | memset(&rpc, 0, sizeof(rpc)); | |
775 | rpc.service_name = "git-receive-pack", | |
776 | rpc.argv = argv; | |
777 | ||
778 | err = rpc_service(&rpc, heads); | |
779 | if (rpc.result.len) | |
780 | safe_write(1, rpc.result.buf, rpc.result.len); | |
781 | strbuf_release(&rpc.result); | |
782 | free(argv); | |
783 | return err; | |
784 | } | |
785 | ||
786 | static int push(int nr_spec, char **specs) | |
787 | { | |
788 | struct discovery *heads = discover_refs("git-receive-pack"); | |
789 | int ret; | |
790 | ||
791 | if (heads->proto_git) | |
792 | ret = push_git(heads, nr_spec, specs); | |
793 | else | |
794 | ret = push_dav(nr_spec, specs); | |
795 | free_discovery(heads); | |
796 | return ret; | |
797 | } | |
798 | ||
ae4efe19 SP |
799 | static void parse_push(struct strbuf *buf) |
800 | { | |
801 | char **specs = NULL; | |
802 | int alloc_spec = 0, nr_spec = 0, i; | |
803 | ||
804 | do { | |
805 | if (!prefixcmp(buf->buf, "push ")) { | |
806 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); | |
807 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
808 | } | |
809 | else | |
810 | die("http transport does not support %s", buf->buf); | |
811 | ||
812 | strbuf_reset(buf); | |
813 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
814 | return; | |
815 | if (!*buf->buf) | |
816 | break; | |
817 | } while (1); | |
818 | ||
de1a2fdd | 819 | if (push(nr_spec, specs)) |
ae4efe19 SP |
820 | exit(128); /* error already reported */ |
821 | for (i = 0; i < nr_spec; i++) | |
822 | free(specs[i]); | |
823 | free(specs); | |
824 | ||
825 | printf("\n"); | |
826 | fflush(stdout); | |
827 | } | |
828 | ||
a2d725b7 DB |
829 | int main(int argc, const char **argv) |
830 | { | |
a2d725b7 | 831 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 832 | int nongit; |
a2d725b7 | 833 | |
c6dfb399 | 834 | git_extract_argv0_path(argv[0]); |
a45d3d7e | 835 | setup_git_directory_gently(&nongit); |
a2d725b7 DB |
836 | if (argc < 2) { |
837 | fprintf(stderr, "Remote needed\n"); | |
838 | return 1; | |
839 | } | |
840 | ||
ef08ef9e SP |
841 | options.verbosity = 1; |
842 | options.progress = !!isatty(2); | |
de1a2fdd | 843 | options.thin = 1; |
ef08ef9e | 844 | |
a2d725b7 DB |
845 | remote = remote_get(argv[1]); |
846 | ||
847 | if (argc > 2) { | |
d8fab072 | 848 | end_url_with_slash(&buf, argv[2]); |
a2d725b7 | 849 | } else { |
d8fab072 | 850 | end_url_with_slash(&buf, remote->url[0]); |
a2d725b7 DB |
851 | } |
852 | ||
d8fab072 TRC |
853 | url = strbuf_detach(&buf, NULL); |
854 | ||
888692b7 TRC |
855 | http_init(remote); |
856 | ||
a2d725b7 DB |
857 | do { |
858 | if (strbuf_getline(&buf, stdin, '\n') == EOF) | |
859 | break; | |
860 | if (!prefixcmp(buf.buf, "fetch ")) { | |
a45d3d7e DB |
861 | if (nongit) |
862 | die("Fetch attempted without a local repo"); | |
292ce46b SP |
863 | parse_fetch(&buf); |
864 | ||
ae4efe19 | 865 | } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) { |
97cc7bc4 SP |
866 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
867 | output_refs(get_refs(for_push)); | |
ae4efe19 SP |
868 | |
869 | } else if (!prefixcmp(buf.buf, "push ")) { | |
870 | parse_push(&buf); | |
871 | ||
ef08ef9e SP |
872 | } else if (!prefixcmp(buf.buf, "option ")) { |
873 | char *name = buf.buf + strlen("option "); | |
874 | char *value = strchr(name, ' '); | |
875 | int result; | |
876 | ||
877 | if (value) | |
878 | *value++ = '\0'; | |
879 | else | |
880 | value = "true"; | |
881 | ||
882 | result = set_option(name, value); | |
883 | if (!result) | |
884 | printf("ok\n"); | |
885 | else if (result < 0) | |
886 | printf("error invalid value\n"); | |
887 | else | |
888 | printf("unsupported\n"); | |
a2d725b7 | 889 | fflush(stdout); |
ef08ef9e | 890 | |
a2d725b7 DB |
891 | } else if (!strcmp(buf.buf, "capabilities")) { |
892 | printf("fetch\n"); | |
ef08ef9e | 893 | printf("option\n"); |
ae4efe19 | 894 | printf("push\n"); |
a2d725b7 DB |
895 | printf("\n"); |
896 | fflush(stdout); | |
897 | } else { | |
898 | return 1; | |
899 | } | |
900 | strbuf_reset(&buf); | |
901 | } while (1); | |
888692b7 TRC |
902 | |
903 | http_cleanup(); | |
904 | ||
a2d725b7 DB |
905 | return 0; |
906 | } |