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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) */ | |
28d0c101 | 118 | if (http_ret != HTTP_OK && http_ret != HTTP_NOAUTH) { |
703e6e76 TRC |
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 | ||
02f79147 | 191 | static struct ref *parse_git_refs(struct discovery *heads, int for_push) |
97cc7bc4 SP |
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"); | |
200888ef | 203 | get_remote_heads(async.out, &list, |
02f79147 | 204 | for_push ? REF_NORMAL : 0, NULL); |
97cc7bc4 SP |
205 | close(async.out); |
206 | if (finish_async(&async)) | |
207 | die("ref parsing thread failed"); | |
208 | return list; | |
209 | } | |
210 | ||
211 | static struct ref *parse_info_refs(struct discovery *heads) | |
212 | { | |
213 | char *data, *start, *mid; | |
214 | char *ref_name; | |
215 | int i = 0; | |
216 | ||
217 | struct ref *refs = NULL; | |
218 | struct ref *ref = NULL; | |
219 | struct ref *last_ref = NULL; | |
220 | ||
221 | data = heads->buf; | |
a2d725b7 DB |
222 | start = NULL; |
223 | mid = data; | |
97cc7bc4 | 224 | while (i < heads->len) { |
a2d725b7 DB |
225 | if (!start) { |
226 | start = &data[i]; | |
227 | } | |
228 | if (data[i] == '\t') | |
229 | mid = &data[i]; | |
230 | if (data[i] == '\n') { | |
6e8e67f3 JP |
231 | if (mid - start != 40) |
232 | die("%sinfo/refs not valid: is this a git repository?", url); | |
a2d725b7 DB |
233 | data[i] = 0; |
234 | ref_name = mid + 1; | |
235 | ref = xmalloc(sizeof(struct ref) + | |
236 | strlen(ref_name) + 1); | |
237 | memset(ref, 0, sizeof(struct ref)); | |
238 | strcpy(ref->name, ref_name); | |
239 | get_sha1_hex(start, ref->old_sha1); | |
240 | if (!refs) | |
241 | refs = ref; | |
242 | if (last_ref) | |
243 | last_ref->next = ref; | |
244 | last_ref = ref; | |
245 | start = NULL; | |
246 | } | |
247 | i++; | |
248 | } | |
249 | ||
a2d725b7 | 250 | ref = alloc_ref("HEAD"); |
aec49756 | 251 | if (!http_fetch_ref(url, ref) && |
a2d725b7 DB |
252 | !resolve_remote_symref(ref, refs)) { |
253 | ref->next = refs; | |
254 | refs = ref; | |
255 | } else { | |
256 | free(ref); | |
257 | } | |
258 | ||
a2d725b7 DB |
259 | return refs; |
260 | } | |
261 | ||
97cc7bc4 SP |
262 | static struct ref *get_refs(int for_push) |
263 | { | |
264 | struct discovery *heads; | |
265 | ||
266 | if (for_push) | |
267 | heads = discover_refs("git-receive-pack"); | |
268 | else | |
269 | heads = discover_refs("git-upload-pack"); | |
270 | ||
271 | if (heads->proto_git) | |
02f79147 | 272 | return parse_git_refs(heads, for_push); |
97cc7bc4 SP |
273 | return parse_info_refs(heads); |
274 | } | |
275 | ||
ae4efe19 SP |
276 | static void output_refs(struct ref *refs) |
277 | { | |
278 | struct ref *posn; | |
279 | for (posn = refs; posn; posn = posn->next) { | |
280 | if (posn->symref) | |
281 | printf("@%s %s\n", posn->symref, posn->name); | |
282 | else | |
283 | printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name); | |
284 | } | |
285 | printf("\n"); | |
286 | fflush(stdout); | |
287 | free_refs(refs); | |
288 | } | |
289 | ||
de1a2fdd SP |
290 | struct rpc_state { |
291 | const char *service_name; | |
292 | const char **argv; | |
8150749d | 293 | struct strbuf *stdin_preamble; |
de1a2fdd SP |
294 | char *service_url; |
295 | char *hdr_content_type; | |
296 | char *hdr_accept; | |
297 | char *buf; | |
298 | size_t alloc; | |
299 | size_t len; | |
300 | size_t pos; | |
301 | int in; | |
302 | int out; | |
303 | struct strbuf result; | |
b8538603 | 304 | unsigned gzip_request : 1; |
6c81a990 | 305 | unsigned initial_buffer : 1; |
de1a2fdd SP |
306 | }; |
307 | ||
308 | static size_t rpc_out(void *ptr, size_t eltsize, | |
309 | size_t nmemb, void *buffer_) | |
310 | { | |
311 | size_t max = eltsize * nmemb; | |
312 | struct rpc_state *rpc = buffer_; | |
313 | size_t avail = rpc->len - rpc->pos; | |
314 | ||
315 | if (!avail) { | |
6c81a990 | 316 | rpc->initial_buffer = 0; |
de1a2fdd SP |
317 | avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc); |
318 | if (!avail) | |
319 | return 0; | |
320 | rpc->pos = 0; | |
321 | rpc->len = avail; | |
322 | } | |
323 | ||
48310608 | 324 | if (max < avail) |
de1a2fdd SP |
325 | avail = max; |
326 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
327 | rpc->pos += avail; | |
328 | return avail; | |
329 | } | |
330 | ||
6c81a990 | 331 | #ifndef NO_CURL_IOCTL |
5092d3ec | 332 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
333 | { |
334 | struct rpc_state *rpc = clientp; | |
335 | ||
336 | switch (cmd) { | |
337 | case CURLIOCMD_NOP: | |
338 | return CURLIOE_OK; | |
339 | ||
340 | case CURLIOCMD_RESTARTREAD: | |
341 | if (rpc->initial_buffer) { | |
342 | rpc->pos = 0; | |
343 | return CURLIOE_OK; | |
344 | } | |
345 | fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n"); | |
346 | return CURLIOE_FAILRESTART; | |
347 | ||
348 | default: | |
349 | return CURLIOE_UNKNOWNCMD; | |
350 | } | |
351 | } | |
352 | #endif | |
353 | ||
a04ff3ec | 354 | static size_t rpc_in(char *ptr, size_t eltsize, |
de1a2fdd SP |
355 | size_t nmemb, void *buffer_) |
356 | { | |
357 | size_t size = eltsize * nmemb; | |
358 | struct rpc_state *rpc = buffer_; | |
359 | write_or_die(rpc->in, ptr, size); | |
360 | return size; | |
361 | } | |
362 | ||
206b099d SP |
363 | static int run_slot(struct active_request_slot *slot) |
364 | { | |
365 | int err = 0; | |
366 | struct slot_results results; | |
367 | ||
368 | slot->results = &results; | |
369 | slot->curl_result = curl_easy_perform(slot->curl); | |
370 | finish_active_slot(slot); | |
371 | ||
372 | if (results.curl_result != CURLE_OK) { | |
373 | err |= error("RPC failed; result=%d, HTTP code = %ld", | |
374 | results.curl_result, results.http_code); | |
375 | } | |
376 | ||
377 | return err; | |
378 | } | |
379 | ||
380 | static int probe_rpc(struct rpc_state *rpc) | |
381 | { | |
382 | struct active_request_slot *slot; | |
383 | struct curl_slist *headers = NULL; | |
384 | struct strbuf buf = STRBUF_INIT; | |
385 | int err; | |
386 | ||
387 | slot = get_active_slot(); | |
388 | ||
389 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
390 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
391 | ||
392 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
393 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
394 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); | |
395 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); | |
396 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000"); | |
397 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4); | |
398 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
399 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
400 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf); | |
401 | ||
402 | err = run_slot(slot); | |
403 | ||
404 | curl_slist_free_all(headers); | |
405 | strbuf_release(&buf); | |
406 | return err; | |
407 | } | |
408 | ||
de1a2fdd SP |
409 | static int post_rpc(struct rpc_state *rpc) |
410 | { | |
411 | struct active_request_slot *slot; | |
de1a2fdd | 412 | struct curl_slist *headers = NULL; |
b8538603 SP |
413 | int use_gzip = rpc->gzip_request; |
414 | char *gzip_body = NULL; | |
206b099d | 415 | int err, large_request = 0; |
de1a2fdd SP |
416 | |
417 | /* Try to load the entire request, if we can fit it into the | |
418 | * allocated buffer space we can use HTTP/1.0 and avoid the | |
419 | * chunked encoding mess. | |
420 | */ | |
421 | while (1) { | |
422 | size_t left = rpc->alloc - rpc->len; | |
423 | char *buf = rpc->buf + rpc->len; | |
424 | int n; | |
425 | ||
426 | if (left < LARGE_PACKET_MAX) { | |
427 | large_request = 1; | |
b8538603 | 428 | use_gzip = 0; |
de1a2fdd SP |
429 | break; |
430 | } | |
431 | ||
432 | n = packet_read_line(rpc->out, buf, left); | |
433 | if (!n) | |
434 | break; | |
435 | rpc->len += n; | |
436 | } | |
437 | ||
206b099d SP |
438 | if (large_request) { |
439 | err = probe_rpc(rpc); | |
440 | if (err) | |
441 | return err; | |
442 | } | |
443 | ||
de1a2fdd | 444 | slot = get_active_slot(); |
de1a2fdd | 445 | |
de1a2fdd | 446 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
d21f9794 | 447 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); |
de1a2fdd | 448 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); |
b8538603 | 449 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); |
de1a2fdd SP |
450 | |
451 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
452 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
959dfcf4 | 453 | headers = curl_slist_append(headers, "Expect:"); |
de1a2fdd SP |
454 | |
455 | if (large_request) { | |
456 | /* The request body is large and the size cannot be predicted. | |
457 | * We must use chunked encoding to send it. | |
458 | */ | |
de1a2fdd | 459 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); |
6c81a990 | 460 | rpc->initial_buffer = 1; |
de1a2fdd SP |
461 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
462 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
463 | #ifndef NO_CURL_IOCTL |
464 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
465 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
466 | #endif | |
de1a2fdd SP |
467 | if (options.verbosity > 1) { |
468 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
469 | fflush(stderr); | |
470 | } | |
471 | ||
b8538603 SP |
472 | } else if (use_gzip && 1024 < rpc->len) { |
473 | /* The client backend isn't giving us compressed data so | |
474 | * we can try to deflate it ourselves, this may save on. | |
475 | * the transfer time. | |
476 | */ | |
477 | size_t size; | |
ef49a7a0 | 478 | git_zstream stream; |
b8538603 SP |
479 | int ret; |
480 | ||
481 | memset(&stream, 0, sizeof(stream)); | |
55bb5c91 | 482 | git_deflate_init_gzip(&stream, Z_BEST_COMPRESSION); |
225a6f10 | 483 | size = git_deflate_bound(&stream, rpc->len); |
b8538603 SP |
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 | ||
55bb5c91 | 491 | ret = git_deflate(&stream, Z_FINISH); |
b8538603 SP |
492 | if (ret != Z_STREAM_END) |
493 | die("cannot deflate request; zlib deflate error %d", ret); | |
494 | ||
55bb5c91 | 495 | ret = git_deflate_end_gently(&stream); |
b8538603 SP |
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; | |
8150749d | 539 | struct strbuf *preamble = rpc->stdin_preamble; |
de1a2fdd SP |
540 | struct child_process client; |
541 | int err = 0; | |
542 | ||
de1a2fdd SP |
543 | memset(&client, 0, sizeof(client)); |
544 | client.in = -1; | |
545 | client.out = -1; | |
546 | client.git_cmd = 1; | |
547 | client.argv = rpc->argv; | |
548 | if (start_command(&client)) | |
549 | exit(1); | |
8150749d IT |
550 | if (preamble) |
551 | write_or_die(client.in, preamble->buf, preamble->len); | |
de1a2fdd SP |
552 | if (heads) |
553 | write_or_die(client.in, heads->buf, heads->len); | |
554 | ||
555 | rpc->alloc = http_post_buffer; | |
556 | rpc->buf = xmalloc(rpc->alloc); | |
557 | rpc->in = client.in; | |
558 | rpc->out = client.out; | |
559 | strbuf_init(&rpc->result, 0); | |
560 | ||
d8fab072 | 561 | strbuf_addf(&buf, "%s%s", url, svc); |
de1a2fdd SP |
562 | rpc->service_url = strbuf_detach(&buf, NULL); |
563 | ||
564 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
565 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
566 | ||
8efa5f62 | 567 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
568 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
569 | ||
570 | while (!err) { | |
571 | int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc); | |
572 | if (!n) | |
573 | break; | |
574 | rpc->pos = 0; | |
575 | rpc->len = n; | |
576 | err |= post_rpc(rpc); | |
577 | } | |
de1a2fdd SP |
578 | |
579 | close(client.in); | |
de1a2fdd | 580 | client.in = -1; |
6cdf0223 SP |
581 | if (!err) { |
582 | strbuf_read(&rpc->result, client.out, 0); | |
583 | } else { | |
584 | char buf[4096]; | |
585 | for (;;) | |
586 | if (xread(client.out, buf, sizeof(buf)) <= 0) | |
587 | break; | |
588 | } | |
b4ee10f6 SP |
589 | |
590 | close(client.out); | |
de1a2fdd SP |
591 | client.out = -1; |
592 | ||
593 | err |= finish_command(&client); | |
594 | free(rpc->service_url); | |
595 | free(rpc->hdr_content_type); | |
596 | free(rpc->hdr_accept); | |
597 | free(rpc->buf); | |
598 | strbuf_release(&buf); | |
599 | return err; | |
600 | } | |
601 | ||
292ce46b SP |
602 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
603 | { | |
26e1e0b2 | 604 | struct walker *walker; |
292ce46b SP |
605 | char **targets = xmalloc(nr_heads * sizeof(char*)); |
606 | int ret, i; | |
607 | ||
249b2004 SP |
608 | if (options.depth) |
609 | die("dumb http transport does not support --depth"); | |
292ce46b SP |
610 | for (i = 0; i < nr_heads; i++) |
611 | targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
612 | ||
26e1e0b2 | 613 | walker = get_http_walker(url); |
292ce46b SP |
614 | walker->get_all = 1; |
615 | walker->get_tree = 1; | |
616 | walker->get_history = 1; | |
ef08ef9e | 617 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
618 | walker->get_recover = 0; |
619 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
26e1e0b2 | 620 | walker_free(walker); |
292ce46b SP |
621 | |
622 | for (i = 0; i < nr_heads; i++) | |
623 | free(targets[i]); | |
624 | free(targets); | |
625 | ||
626 | return ret ? error("Fetch failed.") : 0; | |
627 | } | |
628 | ||
249b2004 SP |
629 | static int fetch_git(struct discovery *heads, |
630 | int nr_heads, struct ref **to_fetch) | |
631 | { | |
632 | struct rpc_state rpc; | |
8150749d | 633 | struct strbuf preamble = STRBUF_INIT; |
249b2004 | 634 | char *depth_arg = NULL; |
249b2004 | 635 | int argc = 0, i, err; |
8150749d | 636 | const char *argv[15]; |
249b2004 | 637 | |
249b2004 SP |
638 | argv[argc++] = "fetch-pack"; |
639 | argv[argc++] = "--stateless-rpc"; | |
8150749d | 640 | argv[argc++] = "--stdin"; |
249b2004 SP |
641 | argv[argc++] = "--lock-pack"; |
642 | if (options.followtags) | |
643 | argv[argc++] = "--include-tag"; | |
644 | if (options.thin) | |
645 | argv[argc++] = "--thin"; | |
646 | if (options.verbosity >= 3) { | |
647 | argv[argc++] = "-v"; | |
648 | argv[argc++] = "-v"; | |
649 | } | |
650 | if (!options.progress) | |
651 | argv[argc++] = "--no-progress"; | |
652 | if (options.depth) { | |
653 | struct strbuf buf = STRBUF_INIT; | |
654 | strbuf_addf(&buf, "--depth=%lu", options.depth); | |
655 | depth_arg = strbuf_detach(&buf, NULL); | |
656 | argv[argc++] = depth_arg; | |
657 | } | |
658 | argv[argc++] = url; | |
8150749d IT |
659 | argv[argc++] = NULL; |
660 | ||
249b2004 SP |
661 | for (i = 0; i < nr_heads; i++) { |
662 | struct ref *ref = to_fetch[i]; | |
663 | if (!ref->name || !*ref->name) | |
664 | die("cannot fetch by sha1 over smart http"); | |
8150749d | 665 | packet_buf_write(&preamble, "%s\n", ref->name); |
249b2004 | 666 | } |
8150749d | 667 | packet_buf_flush(&preamble); |
249b2004 SP |
668 | |
669 | memset(&rpc, 0, sizeof(rpc)); | |
670 | rpc.service_name = "git-upload-pack", | |
671 | rpc.argv = argv; | |
8150749d | 672 | rpc.stdin_preamble = &preamble; |
b8538603 | 673 | rpc.gzip_request = 1; |
249b2004 SP |
674 | |
675 | err = rpc_service(&rpc, heads); | |
676 | if (rpc.result.len) | |
677 | safe_write(1, rpc.result.buf, rpc.result.len); | |
678 | strbuf_release(&rpc.result); | |
8150749d | 679 | strbuf_release(&preamble); |
249b2004 SP |
680 | free(depth_arg); |
681 | return err; | |
682 | } | |
683 | ||
684 | static int fetch(int nr_heads, struct ref **to_fetch) | |
685 | { | |
686 | struct discovery *d = discover_refs("git-upload-pack"); | |
687 | if (d->proto_git) | |
688 | return fetch_git(d, nr_heads, to_fetch); | |
689 | else | |
690 | return fetch_dumb(nr_heads, to_fetch); | |
691 | } | |
692 | ||
292ce46b SP |
693 | static void parse_fetch(struct strbuf *buf) |
694 | { | |
695 | struct ref **to_fetch = NULL; | |
696 | struct ref *list_head = NULL; | |
697 | struct ref **list = &list_head; | |
698 | int alloc_heads = 0, nr_heads = 0; | |
699 | ||
700 | do { | |
701 | if (!prefixcmp(buf->buf, "fetch ")) { | |
702 | char *p = buf->buf + strlen("fetch "); | |
703 | char *name; | |
704 | struct ref *ref; | |
705 | unsigned char old_sha1[20]; | |
706 | ||
707 | if (strlen(p) < 40 || get_sha1_hex(p, old_sha1)) | |
708 | die("protocol error: expected sha/ref, got %s'", p); | |
709 | if (p[40] == ' ') | |
710 | name = p + 41; | |
711 | else if (!p[40]) | |
712 | name = ""; | |
713 | else | |
714 | die("protocol error: expected sha/ref, got %s'", p); | |
715 | ||
716 | ref = alloc_ref(name); | |
717 | hashcpy(ref->old_sha1, old_sha1); | |
718 | ||
719 | *list = ref; | |
720 | list = &ref->next; | |
721 | ||
722 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
723 | to_fetch[nr_heads++] = ref; | |
724 | } | |
725 | else | |
726 | die("http transport does not support %s", buf->buf); | |
727 | ||
728 | strbuf_reset(buf); | |
729 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
730 | return; | |
731 | if (!*buf->buf) | |
732 | break; | |
733 | } while (1); | |
734 | ||
249b2004 | 735 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
736 | exit(128); /* error already reported */ |
737 | free_refs(list_head); | |
738 | free(to_fetch); | |
739 | ||
740 | printf("\n"); | |
741 | fflush(stdout); | |
742 | strbuf_reset(buf); | |
743 | } | |
744 | ||
ae4efe19 SP |
745 | static int push_dav(int nr_spec, char **specs) |
746 | { | |
747 | const char **argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
748 | int argc = 0, i; | |
749 | ||
750 | argv[argc++] = "http-push"; | |
751 | argv[argc++] = "--helper-status"; | |
752 | if (options.dry_run) | |
753 | argv[argc++] = "--dry-run"; | |
754 | if (options.verbosity > 1) | |
755 | argv[argc++] = "--verbose"; | |
756 | argv[argc++] = url; | |
757 | for (i = 0; i < nr_spec; i++) | |
758 | argv[argc++] = specs[i]; | |
759 | argv[argc++] = NULL; | |
760 | ||
761 | if (run_command_v_opt(argv, RUN_GIT_CMD)) | |
762 | die("git-%s failed", argv[0]); | |
763 | free(argv); | |
764 | return 0; | |
765 | } | |
766 | ||
de1a2fdd SP |
767 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
768 | { | |
769 | struct rpc_state rpc; | |
770 | const char **argv; | |
771 | int argc = 0, i, err; | |
772 | ||
773 | argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
774 | argv[argc++] = "send-pack"; | |
775 | argv[argc++] = "--stateless-rpc"; | |
776 | argv[argc++] = "--helper-status"; | |
777 | if (options.thin) | |
778 | argv[argc++] = "--thin"; | |
779 | if (options.dry_run) | |
780 | argv[argc++] = "--dry-run"; | |
c207e34f CB |
781 | if (options.verbosity == 0) |
782 | argv[argc++] = "--quiet"; | |
783 | else if (options.verbosity > 1) | |
de1a2fdd | 784 | argv[argc++] = "--verbose"; |
391b1f20 | 785 | argv[argc++] = options.progress ? "--progress" : "--no-progress"; |
de1a2fdd SP |
786 | argv[argc++] = url; |
787 | for (i = 0; i < nr_spec; i++) | |
788 | argv[argc++] = specs[i]; | |
789 | argv[argc++] = NULL; | |
790 | ||
791 | memset(&rpc, 0, sizeof(rpc)); | |
792 | rpc.service_name = "git-receive-pack", | |
793 | rpc.argv = argv; | |
794 | ||
795 | err = rpc_service(&rpc, heads); | |
796 | if (rpc.result.len) | |
797 | safe_write(1, rpc.result.buf, rpc.result.len); | |
798 | strbuf_release(&rpc.result); | |
799 | free(argv); | |
800 | return err; | |
801 | } | |
802 | ||
803 | static int push(int nr_spec, char **specs) | |
804 | { | |
805 | struct discovery *heads = discover_refs("git-receive-pack"); | |
806 | int ret; | |
807 | ||
808 | if (heads->proto_git) | |
809 | ret = push_git(heads, nr_spec, specs); | |
810 | else | |
811 | ret = push_dav(nr_spec, specs); | |
812 | free_discovery(heads); | |
813 | return ret; | |
814 | } | |
815 | ||
ae4efe19 SP |
816 | static void parse_push(struct strbuf *buf) |
817 | { | |
818 | char **specs = NULL; | |
5238cbf6 | 819 | int alloc_spec = 0, nr_spec = 0, i, ret; |
ae4efe19 SP |
820 | |
821 | do { | |
822 | if (!prefixcmp(buf->buf, "push ")) { | |
823 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); | |
824 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
825 | } | |
826 | else | |
827 | die("http transport does not support %s", buf->buf); | |
828 | ||
829 | strbuf_reset(buf); | |
830 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
dc4cd767 | 831 | goto free_specs; |
ae4efe19 SP |
832 | if (!*buf->buf) |
833 | break; | |
834 | } while (1); | |
835 | ||
5238cbf6 | 836 | ret = push(nr_spec, specs); |
ae4efe19 SP |
837 | printf("\n"); |
838 | fflush(stdout); | |
dc4cd767 | 839 | |
5238cbf6 SP |
840 | if (ret) |
841 | exit(128); /* error already reported */ | |
842 | ||
dc4cd767 JM |
843 | free_specs: |
844 | for (i = 0; i < nr_spec; i++) | |
845 | free(specs[i]); | |
846 | free(specs); | |
ae4efe19 SP |
847 | } |
848 | ||
a2d725b7 DB |
849 | int main(int argc, const char **argv) |
850 | { | |
a2d725b7 | 851 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 852 | int nongit; |
a2d725b7 | 853 | |
c6dfb399 | 854 | git_extract_argv0_path(argv[0]); |
a45d3d7e | 855 | setup_git_directory_gently(&nongit); |
a2d725b7 DB |
856 | if (argc < 2) { |
857 | fprintf(stderr, "Remote needed\n"); | |
858 | return 1; | |
859 | } | |
860 | ||
ef08ef9e SP |
861 | options.verbosity = 1; |
862 | options.progress = !!isatty(2); | |
de1a2fdd | 863 | options.thin = 1; |
ef08ef9e | 864 | |
a2d725b7 DB |
865 | remote = remote_get(argv[1]); |
866 | ||
867 | if (argc > 2) { | |
d8fab072 | 868 | end_url_with_slash(&buf, argv[2]); |
a2d725b7 | 869 | } else { |
d8fab072 | 870 | end_url_with_slash(&buf, remote->url[0]); |
a2d725b7 DB |
871 | } |
872 | ||
d8fab072 TRC |
873 | url = strbuf_detach(&buf, NULL); |
874 | ||
a4ddbc33 | 875 | http_init(remote, url, 0); |
888692b7 | 876 | |
a2d725b7 | 877 | do { |
1843f0ce SR |
878 | if (strbuf_getline(&buf, stdin, '\n') == EOF) { |
879 | if (ferror(stdin)) | |
880 | fprintf(stderr, "Error reading command stream\n"); | |
881 | else | |
882 | fprintf(stderr, "Unexpected end of command stream\n"); | |
883 | return 1; | |
884 | } | |
885 | if (buf.len == 0) | |
a2d725b7 DB |
886 | break; |
887 | if (!prefixcmp(buf.buf, "fetch ")) { | |
a45d3d7e DB |
888 | if (nongit) |
889 | die("Fetch attempted without a local repo"); | |
292ce46b SP |
890 | parse_fetch(&buf); |
891 | ||
ae4efe19 | 892 | } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) { |
97cc7bc4 SP |
893 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
894 | output_refs(get_refs(for_push)); | |
ae4efe19 SP |
895 | |
896 | } else if (!prefixcmp(buf.buf, "push ")) { | |
897 | parse_push(&buf); | |
898 | ||
ef08ef9e SP |
899 | } else if (!prefixcmp(buf.buf, "option ")) { |
900 | char *name = buf.buf + strlen("option "); | |
901 | char *value = strchr(name, ' '); | |
902 | int result; | |
903 | ||
904 | if (value) | |
905 | *value++ = '\0'; | |
906 | else | |
907 | value = "true"; | |
908 | ||
909 | result = set_option(name, value); | |
910 | if (!result) | |
911 | printf("ok\n"); | |
912 | else if (result < 0) | |
913 | printf("error invalid value\n"); | |
914 | else | |
915 | printf("unsupported\n"); | |
a2d725b7 | 916 | fflush(stdout); |
ef08ef9e | 917 | |
a2d725b7 DB |
918 | } else if (!strcmp(buf.buf, "capabilities")) { |
919 | printf("fetch\n"); | |
ef08ef9e | 920 | printf("option\n"); |
ae4efe19 | 921 | printf("push\n"); |
a2d725b7 DB |
922 | printf("\n"); |
923 | fflush(stdout); | |
924 | } else { | |
1843f0ce | 925 | fprintf(stderr, "Unknown command '%s'\n", buf.buf); |
a2d725b7 DB |
926 | return 1; |
927 | } | |
928 | strbuf_reset(&buf); | |
929 | } while (1); | |
888692b7 TRC |
930 | |
931 | http_cleanup(); | |
932 | ||
a2d725b7 DB |
933 | return 0; |
934 | } |