]>
Commit | Line | Data |
---|---|---|
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; |
243c329c | 98 | int http_ret, maybe_smart = 0; |
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); |
02572c2e JK |
105 | if ((!prefixcmp(url, "http://") || !prefixcmp(url, "https://")) && |
106 | git_env_bool("GIT_SMART_HTTP", 1)) { | |
243c329c | 107 | maybe_smart = 1; |
97cc7bc4 SP |
108 | if (!strchr(url, '?')) |
109 | strbuf_addch(&buffer, '?'); | |
110 | else | |
111 | strbuf_addch(&buffer, '&'); | |
112 | strbuf_addf(&buffer, "service=%s", service); | |
113 | } | |
114 | refs_url = strbuf_detach(&buffer, NULL); | |
a2d725b7 DB |
115 | |
116 | http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE); | |
117 | switch (http_ret) { | |
118 | case HTTP_OK: | |
119 | break; | |
120 | case HTTP_MISSING_TARGET: | |
121 | die("%s not found: did you run git update-server-info on the" | |
122 | " server?", refs_url); | |
42653c09 SC |
123 | case HTTP_NOAUTH: |
124 | die("Authentication failed"); | |
a2d725b7 DB |
125 | default: |
126 | http_error(refs_url, http_ret); | |
127 | die("HTTP request failed"); | |
128 | } | |
129 | ||
97cc7bc4 SP |
130 | last= xcalloc(1, sizeof(*last_discovery)); |
131 | last->service = service; | |
132 | last->buf_alloc = strbuf_detach(&buffer, &last->len); | |
133 | last->buf = last->buf_alloc; | |
134 | ||
243c329c | 135 | if (maybe_smart && 5 <= last->len && last->buf[4] == '#') { |
97cc7bc4 SP |
136 | /* smart HTTP response; validate that the service |
137 | * pkt-line matches our request. | |
138 | */ | |
139 | struct strbuf exp = STRBUF_INIT; | |
140 | ||
141 | if (packet_get_line(&buffer, &last->buf, &last->len) <= 0) | |
142 | die("%s has invalid packet header", refs_url); | |
143 | if (buffer.len && buffer.buf[buffer.len - 1] == '\n') | |
144 | strbuf_setlen(&buffer, buffer.len - 1); | |
145 | ||
146 | strbuf_addf(&exp, "# service=%s", service); | |
147 | if (strbuf_cmp(&exp, &buffer)) | |
148 | die("invalid server response; got '%s'", buffer.buf); | |
149 | strbuf_release(&exp); | |
150 | ||
151 | /* The header can include additional metadata lines, up | |
152 | * until a packet flush marker. Ignore these now, but | |
153 | * in the future we might start to scan them. | |
154 | */ | |
155 | strbuf_reset(&buffer); | |
156 | while (packet_get_line(&buffer, &last->buf, &last->len) > 0) | |
157 | strbuf_reset(&buffer); | |
158 | ||
159 | last->proto_git = 1; | |
160 | } | |
161 | ||
162 | free(refs_url); | |
163 | strbuf_release(&buffer); | |
164 | last_discovery = last; | |
165 | return last; | |
166 | } | |
167 | ||
ae6a5609 | 168 | static int write_discovery(int in, int out, void *data) |
97cc7bc4 SP |
169 | { |
170 | struct discovery *heads = data; | |
171 | int err = 0; | |
ae6a5609 | 172 | if (write_in_full(out, heads->buf, heads->len) != heads->len) |
97cc7bc4 | 173 | err = 1; |
ae6a5609 | 174 | close(out); |
97cc7bc4 SP |
175 | return err; |
176 | } | |
177 | ||
02f79147 | 178 | static struct ref *parse_git_refs(struct discovery *heads, int for_push) |
97cc7bc4 SP |
179 | { |
180 | struct ref *list = NULL; | |
181 | struct async async; | |
182 | ||
183 | memset(&async, 0, sizeof(async)); | |
184 | async.proc = write_discovery; | |
185 | async.data = heads; | |
ae6a5609 | 186 | async.out = -1; |
97cc7bc4 SP |
187 | |
188 | if (start_async(&async)) | |
189 | die("cannot start thread to parse advertised refs"); | |
200888ef | 190 | get_remote_heads(async.out, &list, |
02f79147 | 191 | for_push ? REF_NORMAL : 0, NULL); |
97cc7bc4 SP |
192 | close(async.out); |
193 | if (finish_async(&async)) | |
194 | die("ref parsing thread failed"); | |
195 | return list; | |
196 | } | |
197 | ||
198 | static struct ref *parse_info_refs(struct discovery *heads) | |
199 | { | |
200 | char *data, *start, *mid; | |
201 | char *ref_name; | |
202 | int i = 0; | |
203 | ||
204 | struct ref *refs = NULL; | |
205 | struct ref *ref = NULL; | |
206 | struct ref *last_ref = NULL; | |
207 | ||
208 | data = heads->buf; | |
a2d725b7 DB |
209 | start = NULL; |
210 | mid = data; | |
97cc7bc4 | 211 | while (i < heads->len) { |
a2d725b7 DB |
212 | if (!start) { |
213 | start = &data[i]; | |
214 | } | |
215 | if (data[i] == '\t') | |
216 | mid = &data[i]; | |
217 | if (data[i] == '\n') { | |
6e8e67f3 JP |
218 | if (mid - start != 40) |
219 | die("%sinfo/refs not valid: is this a git repository?", url); | |
a2d725b7 DB |
220 | data[i] = 0; |
221 | ref_name = mid + 1; | |
222 | ref = xmalloc(sizeof(struct ref) + | |
223 | strlen(ref_name) + 1); | |
224 | memset(ref, 0, sizeof(struct ref)); | |
225 | strcpy(ref->name, ref_name); | |
226 | get_sha1_hex(start, ref->old_sha1); | |
227 | if (!refs) | |
228 | refs = ref; | |
229 | if (last_ref) | |
230 | last_ref->next = ref; | |
231 | last_ref = ref; | |
232 | start = NULL; | |
233 | } | |
234 | i++; | |
235 | } | |
236 | ||
a2d725b7 | 237 | ref = alloc_ref("HEAD"); |
aec49756 | 238 | if (!http_fetch_ref(url, ref) && |
a2d725b7 DB |
239 | !resolve_remote_symref(ref, refs)) { |
240 | ref->next = refs; | |
241 | refs = ref; | |
242 | } else { | |
243 | free(ref); | |
244 | } | |
245 | ||
a2d725b7 DB |
246 | return refs; |
247 | } | |
248 | ||
97cc7bc4 SP |
249 | static struct ref *get_refs(int for_push) |
250 | { | |
251 | struct discovery *heads; | |
252 | ||
253 | if (for_push) | |
254 | heads = discover_refs("git-receive-pack"); | |
255 | else | |
256 | heads = discover_refs("git-upload-pack"); | |
257 | ||
258 | if (heads->proto_git) | |
02f79147 | 259 | return parse_git_refs(heads, for_push); |
97cc7bc4 SP |
260 | return parse_info_refs(heads); |
261 | } | |
262 | ||
ae4efe19 SP |
263 | static void output_refs(struct ref *refs) |
264 | { | |
265 | struct ref *posn; | |
266 | for (posn = refs; posn; posn = posn->next) { | |
267 | if (posn->symref) | |
268 | printf("@%s %s\n", posn->symref, posn->name); | |
269 | else | |
270 | printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name); | |
271 | } | |
272 | printf("\n"); | |
273 | fflush(stdout); | |
274 | free_refs(refs); | |
275 | } | |
276 | ||
de1a2fdd SP |
277 | struct rpc_state { |
278 | const char *service_name; | |
279 | const char **argv; | |
8150749d | 280 | struct strbuf *stdin_preamble; |
de1a2fdd SP |
281 | char *service_url; |
282 | char *hdr_content_type; | |
283 | char *hdr_accept; | |
284 | char *buf; | |
285 | size_t alloc; | |
286 | size_t len; | |
287 | size_t pos; | |
288 | int in; | |
289 | int out; | |
290 | struct strbuf result; | |
b8538603 | 291 | unsigned gzip_request : 1; |
6c81a990 | 292 | unsigned initial_buffer : 1; |
de1a2fdd SP |
293 | }; |
294 | ||
295 | static size_t rpc_out(void *ptr, size_t eltsize, | |
296 | size_t nmemb, void *buffer_) | |
297 | { | |
298 | size_t max = eltsize * nmemb; | |
299 | struct rpc_state *rpc = buffer_; | |
300 | size_t avail = rpc->len - rpc->pos; | |
301 | ||
302 | if (!avail) { | |
6c81a990 | 303 | rpc->initial_buffer = 0; |
de1a2fdd SP |
304 | avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc); |
305 | if (!avail) | |
306 | return 0; | |
307 | rpc->pos = 0; | |
308 | rpc->len = avail; | |
309 | } | |
310 | ||
48310608 | 311 | if (max < avail) |
de1a2fdd SP |
312 | avail = max; |
313 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
314 | rpc->pos += avail; | |
315 | return avail; | |
316 | } | |
317 | ||
6c81a990 | 318 | #ifndef NO_CURL_IOCTL |
5092d3ec | 319 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
320 | { |
321 | struct rpc_state *rpc = clientp; | |
322 | ||
323 | switch (cmd) { | |
324 | case CURLIOCMD_NOP: | |
325 | return CURLIOE_OK; | |
326 | ||
327 | case CURLIOCMD_RESTARTREAD: | |
328 | if (rpc->initial_buffer) { | |
329 | rpc->pos = 0; | |
330 | return CURLIOE_OK; | |
331 | } | |
332 | fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n"); | |
333 | return CURLIOE_FAILRESTART; | |
334 | ||
335 | default: | |
336 | return CURLIOE_UNKNOWNCMD; | |
337 | } | |
338 | } | |
339 | #endif | |
340 | ||
a04ff3ec | 341 | static size_t rpc_in(char *ptr, size_t eltsize, |
de1a2fdd SP |
342 | size_t nmemb, void *buffer_) |
343 | { | |
344 | size_t size = eltsize * nmemb; | |
345 | struct rpc_state *rpc = buffer_; | |
346 | write_or_die(rpc->in, ptr, size); | |
347 | return size; | |
348 | } | |
349 | ||
206b099d SP |
350 | static int run_slot(struct active_request_slot *slot) |
351 | { | |
b81401c1 | 352 | int err; |
206b099d SP |
353 | struct slot_results results; |
354 | ||
355 | slot->results = &results; | |
356 | slot->curl_result = curl_easy_perform(slot->curl); | |
357 | finish_active_slot(slot); | |
358 | ||
1960897e | 359 | err = handle_curl_result(&results); |
b81401c1 JK |
360 | if (err != HTTP_OK && err != HTTP_REAUTH) { |
361 | error("RPC failed; result=%d, HTTP code = %ld", | |
362 | results.curl_result, results.http_code); | |
206b099d SP |
363 | } |
364 | ||
365 | return err; | |
366 | } | |
367 | ||
368 | static int probe_rpc(struct rpc_state *rpc) | |
369 | { | |
370 | struct active_request_slot *slot; | |
371 | struct curl_slist *headers = NULL; | |
372 | struct strbuf buf = STRBUF_INIT; | |
373 | int err; | |
374 | ||
375 | slot = get_active_slot(); | |
376 | ||
377 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
378 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
379 | ||
380 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
381 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
382 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); | |
aa90b969 | 383 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, NULL); |
206b099d SP |
384 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000"); |
385 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4); | |
386 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
387 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
388 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf); | |
389 | ||
390 | err = run_slot(slot); | |
391 | ||
392 | curl_slist_free_all(headers); | |
393 | strbuf_release(&buf); | |
394 | return err; | |
395 | } | |
396 | ||
de1a2fdd SP |
397 | static int post_rpc(struct rpc_state *rpc) |
398 | { | |
399 | struct active_request_slot *slot; | |
de1a2fdd | 400 | struct curl_slist *headers = NULL; |
b8538603 SP |
401 | int use_gzip = rpc->gzip_request; |
402 | char *gzip_body = NULL; | |
37711549 | 403 | size_t gzip_size = 0; |
206b099d | 404 | int err, large_request = 0; |
de1a2fdd SP |
405 | |
406 | /* Try to load the entire request, if we can fit it into the | |
407 | * allocated buffer space we can use HTTP/1.0 and avoid the | |
408 | * chunked encoding mess. | |
409 | */ | |
410 | while (1) { | |
411 | size_t left = rpc->alloc - rpc->len; | |
412 | char *buf = rpc->buf + rpc->len; | |
413 | int n; | |
414 | ||
415 | if (left < LARGE_PACKET_MAX) { | |
416 | large_request = 1; | |
b8538603 | 417 | use_gzip = 0; |
de1a2fdd SP |
418 | break; |
419 | } | |
420 | ||
421 | n = packet_read_line(rpc->out, buf, left); | |
422 | if (!n) | |
423 | break; | |
424 | rpc->len += n; | |
425 | } | |
426 | ||
206b099d | 427 | if (large_request) { |
b81401c1 JK |
428 | do { |
429 | err = probe_rpc(rpc); | |
430 | } while (err == HTTP_REAUTH); | |
431 | if (err != HTTP_OK) | |
432 | return -1; | |
206b099d SP |
433 | } |
434 | ||
abf8df86 JK |
435 | headers = curl_slist_append(headers, rpc->hdr_content_type); |
436 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
437 | headers = curl_slist_append(headers, "Expect:"); | |
438 | ||
439 | retry: | |
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); |
aa90b969 | 445 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
de1a2fdd | 446 | |
de1a2fdd SP |
447 | if (large_request) { |
448 | /* The request body is large and the size cannot be predicted. | |
449 | * We must use chunked encoding to send it. | |
450 | */ | |
de1a2fdd | 451 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); |
6c81a990 | 452 | rpc->initial_buffer = 1; |
de1a2fdd SP |
453 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
454 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
455 | #ifndef NO_CURL_IOCTL |
456 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
457 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
458 | #endif | |
de1a2fdd SP |
459 | if (options.verbosity > 1) { |
460 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
461 | fflush(stderr); | |
462 | } | |
463 | ||
2e736fd5 JK |
464 | } else if (gzip_body) { |
465 | /* | |
466 | * If we are looping to retry authentication, then the previous | |
467 | * run will have set up the headers and gzip buffer already, | |
468 | * and we just need to send it. | |
469 | */ | |
470 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
471 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, gzip_size); | |
472 | ||
b8538603 SP |
473 | } else if (use_gzip && 1024 < rpc->len) { |
474 | /* The client backend isn't giving us compressed data so | |
475 | * we can try to deflate it ourselves, this may save on. | |
476 | * the transfer time. | |
477 | */ | |
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); |
df126e10 JK |
483 | gzip_size = git_deflate_bound(&stream, rpc->len); |
484 | gzip_body = xmalloc(gzip_size); | |
b8538603 SP |
485 | |
486 | stream.next_in = (unsigned char *)rpc->buf; | |
487 | stream.avail_in = rpc->len; | |
488 | stream.next_out = (unsigned char *)gzip_body; | |
df126e10 | 489 | stream.avail_out = gzip_size; |
b8538603 | 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 | ||
df126e10 | 499 | gzip_size = stream.total_out; |
b8538603 SP |
500 | |
501 | headers = curl_slist_append(headers, "Content-Encoding: gzip"); | |
502 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
df126e10 | 503 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, gzip_size); |
b8538603 SP |
504 | |
505 | if (options.verbosity > 1) { | |
506 | fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n", | |
507 | rpc->service_name, | |
df126e10 | 508 | (unsigned long)rpc->len, (unsigned long)gzip_size); |
b8538603 SP |
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 | ||
abf8df86 | 528 | err = run_slot(slot); |
2e736fd5 | 529 | if (err == HTTP_REAUTH && !large_request) |
abf8df86 | 530 | goto retry; |
b81401c1 JK |
531 | if (err != HTTP_OK) |
532 | err = -1; | |
de1a2fdd SP |
533 | |
534 | curl_slist_free_all(headers); | |
b8538603 | 535 | free(gzip_body); |
de1a2fdd SP |
536 | return err; |
537 | } | |
538 | ||
539 | static int rpc_service(struct rpc_state *rpc, struct discovery *heads) | |
540 | { | |
541 | const char *svc = rpc->service_name; | |
542 | struct strbuf buf = STRBUF_INIT; | |
8150749d | 543 | struct strbuf *preamble = rpc->stdin_preamble; |
de1a2fdd SP |
544 | struct child_process client; |
545 | int err = 0; | |
546 | ||
de1a2fdd SP |
547 | memset(&client, 0, sizeof(client)); |
548 | client.in = -1; | |
549 | client.out = -1; | |
550 | client.git_cmd = 1; | |
551 | client.argv = rpc->argv; | |
552 | if (start_command(&client)) | |
553 | exit(1); | |
8150749d IT |
554 | if (preamble) |
555 | write_or_die(client.in, preamble->buf, preamble->len); | |
de1a2fdd SP |
556 | if (heads) |
557 | write_or_die(client.in, heads->buf, heads->len); | |
558 | ||
559 | rpc->alloc = http_post_buffer; | |
560 | rpc->buf = xmalloc(rpc->alloc); | |
561 | rpc->in = client.in; | |
562 | rpc->out = client.out; | |
563 | strbuf_init(&rpc->result, 0); | |
564 | ||
d8fab072 | 565 | strbuf_addf(&buf, "%s%s", url, svc); |
de1a2fdd SP |
566 | rpc->service_url = strbuf_detach(&buf, NULL); |
567 | ||
568 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
569 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
570 | ||
8efa5f62 | 571 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
572 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
573 | ||
574 | while (!err) { | |
575 | int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc); | |
576 | if (!n) | |
577 | break; | |
578 | rpc->pos = 0; | |
579 | rpc->len = n; | |
580 | err |= post_rpc(rpc); | |
581 | } | |
de1a2fdd SP |
582 | |
583 | close(client.in); | |
de1a2fdd | 584 | client.in = -1; |
6cdf0223 SP |
585 | if (!err) { |
586 | strbuf_read(&rpc->result, client.out, 0); | |
587 | } else { | |
588 | char buf[4096]; | |
589 | for (;;) | |
590 | if (xread(client.out, buf, sizeof(buf)) <= 0) | |
591 | break; | |
592 | } | |
b4ee10f6 SP |
593 | |
594 | close(client.out); | |
de1a2fdd SP |
595 | client.out = -1; |
596 | ||
597 | err |= finish_command(&client); | |
598 | free(rpc->service_url); | |
599 | free(rpc->hdr_content_type); | |
600 | free(rpc->hdr_accept); | |
601 | free(rpc->buf); | |
602 | strbuf_release(&buf); | |
603 | return err; | |
604 | } | |
605 | ||
292ce46b SP |
606 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
607 | { | |
26e1e0b2 | 608 | struct walker *walker; |
292ce46b SP |
609 | char **targets = xmalloc(nr_heads * sizeof(char*)); |
610 | int ret, i; | |
611 | ||
249b2004 SP |
612 | if (options.depth) |
613 | die("dumb http transport does not support --depth"); | |
292ce46b SP |
614 | for (i = 0; i < nr_heads; i++) |
615 | targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
616 | ||
26e1e0b2 | 617 | walker = get_http_walker(url); |
292ce46b SP |
618 | walker->get_all = 1; |
619 | walker->get_tree = 1; | |
620 | walker->get_history = 1; | |
ef08ef9e | 621 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
622 | walker->get_recover = 0; |
623 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
26e1e0b2 | 624 | walker_free(walker); |
292ce46b SP |
625 | |
626 | for (i = 0; i < nr_heads; i++) | |
627 | free(targets[i]); | |
628 | free(targets); | |
629 | ||
630 | return ret ? error("Fetch failed.") : 0; | |
631 | } | |
632 | ||
249b2004 SP |
633 | static int fetch_git(struct discovery *heads, |
634 | int nr_heads, struct ref **to_fetch) | |
635 | { | |
636 | struct rpc_state rpc; | |
8150749d | 637 | struct strbuf preamble = STRBUF_INIT; |
249b2004 | 638 | char *depth_arg = NULL; |
249b2004 | 639 | int argc = 0, i, err; |
8150749d | 640 | const char *argv[15]; |
249b2004 | 641 | |
249b2004 SP |
642 | argv[argc++] = "fetch-pack"; |
643 | argv[argc++] = "--stateless-rpc"; | |
8150749d | 644 | argv[argc++] = "--stdin"; |
249b2004 SP |
645 | argv[argc++] = "--lock-pack"; |
646 | if (options.followtags) | |
647 | argv[argc++] = "--include-tag"; | |
648 | if (options.thin) | |
649 | argv[argc++] = "--thin"; | |
650 | if (options.verbosity >= 3) { | |
651 | argv[argc++] = "-v"; | |
652 | argv[argc++] = "-v"; | |
653 | } | |
654 | if (!options.progress) | |
655 | argv[argc++] = "--no-progress"; | |
656 | if (options.depth) { | |
657 | struct strbuf buf = STRBUF_INIT; | |
658 | strbuf_addf(&buf, "--depth=%lu", options.depth); | |
659 | depth_arg = strbuf_detach(&buf, NULL); | |
660 | argv[argc++] = depth_arg; | |
661 | } | |
662 | argv[argc++] = url; | |
8150749d IT |
663 | argv[argc++] = NULL; |
664 | ||
249b2004 SP |
665 | for (i = 0; i < nr_heads; i++) { |
666 | struct ref *ref = to_fetch[i]; | |
667 | if (!ref->name || !*ref->name) | |
668 | die("cannot fetch by sha1 over smart http"); | |
8150749d | 669 | packet_buf_write(&preamble, "%s\n", ref->name); |
249b2004 | 670 | } |
8150749d | 671 | packet_buf_flush(&preamble); |
249b2004 SP |
672 | |
673 | memset(&rpc, 0, sizeof(rpc)); | |
674 | rpc.service_name = "git-upload-pack", | |
675 | rpc.argv = argv; | |
8150749d | 676 | rpc.stdin_preamble = &preamble; |
b8538603 | 677 | rpc.gzip_request = 1; |
249b2004 SP |
678 | |
679 | err = rpc_service(&rpc, heads); | |
680 | if (rpc.result.len) | |
681 | safe_write(1, rpc.result.buf, rpc.result.len); | |
682 | strbuf_release(&rpc.result); | |
8150749d | 683 | strbuf_release(&preamble); |
249b2004 SP |
684 | free(depth_arg); |
685 | return err; | |
686 | } | |
687 | ||
688 | static int fetch(int nr_heads, struct ref **to_fetch) | |
689 | { | |
690 | struct discovery *d = discover_refs("git-upload-pack"); | |
691 | if (d->proto_git) | |
692 | return fetch_git(d, nr_heads, to_fetch); | |
693 | else | |
694 | return fetch_dumb(nr_heads, to_fetch); | |
695 | } | |
696 | ||
292ce46b SP |
697 | static void parse_fetch(struct strbuf *buf) |
698 | { | |
699 | struct ref **to_fetch = NULL; | |
700 | struct ref *list_head = NULL; | |
701 | struct ref **list = &list_head; | |
702 | int alloc_heads = 0, nr_heads = 0; | |
703 | ||
704 | do { | |
705 | if (!prefixcmp(buf->buf, "fetch ")) { | |
706 | char *p = buf->buf + strlen("fetch "); | |
707 | char *name; | |
708 | struct ref *ref; | |
709 | unsigned char old_sha1[20]; | |
710 | ||
711 | if (strlen(p) < 40 || get_sha1_hex(p, old_sha1)) | |
712 | die("protocol error: expected sha/ref, got %s'", p); | |
713 | if (p[40] == ' ') | |
714 | name = p + 41; | |
715 | else if (!p[40]) | |
716 | name = ""; | |
717 | else | |
718 | die("protocol error: expected sha/ref, got %s'", p); | |
719 | ||
720 | ref = alloc_ref(name); | |
721 | hashcpy(ref->old_sha1, old_sha1); | |
722 | ||
723 | *list = ref; | |
724 | list = &ref->next; | |
725 | ||
726 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
727 | to_fetch[nr_heads++] = ref; | |
728 | } | |
729 | else | |
730 | die("http transport does not support %s", buf->buf); | |
731 | ||
732 | strbuf_reset(buf); | |
733 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
734 | return; | |
735 | if (!*buf->buf) | |
736 | break; | |
737 | } while (1); | |
738 | ||
249b2004 | 739 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
740 | exit(128); /* error already reported */ |
741 | free_refs(list_head); | |
742 | free(to_fetch); | |
743 | ||
744 | printf("\n"); | |
745 | fflush(stdout); | |
746 | strbuf_reset(buf); | |
747 | } | |
748 | ||
ae4efe19 SP |
749 | static int push_dav(int nr_spec, char **specs) |
750 | { | |
751 | const char **argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
752 | int argc = 0, i; | |
753 | ||
754 | argv[argc++] = "http-push"; | |
755 | argv[argc++] = "--helper-status"; | |
756 | if (options.dry_run) | |
757 | argv[argc++] = "--dry-run"; | |
758 | if (options.verbosity > 1) | |
759 | argv[argc++] = "--verbose"; | |
760 | argv[argc++] = url; | |
761 | for (i = 0; i < nr_spec; i++) | |
762 | argv[argc++] = specs[i]; | |
763 | argv[argc++] = NULL; | |
764 | ||
765 | if (run_command_v_opt(argv, RUN_GIT_CMD)) | |
766 | die("git-%s failed", argv[0]); | |
767 | free(argv); | |
768 | return 0; | |
769 | } | |
770 | ||
de1a2fdd SP |
771 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
772 | { | |
773 | struct rpc_state rpc; | |
774 | const char **argv; | |
775 | int argc = 0, i, err; | |
776 | ||
777 | argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
778 | argv[argc++] = "send-pack"; | |
779 | argv[argc++] = "--stateless-rpc"; | |
780 | argv[argc++] = "--helper-status"; | |
781 | if (options.thin) | |
782 | argv[argc++] = "--thin"; | |
783 | if (options.dry_run) | |
784 | argv[argc++] = "--dry-run"; | |
c207e34f CB |
785 | if (options.verbosity == 0) |
786 | argv[argc++] = "--quiet"; | |
787 | else if (options.verbosity > 1) | |
de1a2fdd | 788 | argv[argc++] = "--verbose"; |
391b1f20 | 789 | argv[argc++] = options.progress ? "--progress" : "--no-progress"; |
de1a2fdd SP |
790 | argv[argc++] = url; |
791 | for (i = 0; i < nr_spec; i++) | |
792 | argv[argc++] = specs[i]; | |
793 | argv[argc++] = NULL; | |
794 | ||
795 | memset(&rpc, 0, sizeof(rpc)); | |
796 | rpc.service_name = "git-receive-pack", | |
797 | rpc.argv = argv; | |
798 | ||
799 | err = rpc_service(&rpc, heads); | |
800 | if (rpc.result.len) | |
801 | safe_write(1, rpc.result.buf, rpc.result.len); | |
802 | strbuf_release(&rpc.result); | |
803 | free(argv); | |
804 | return err; | |
805 | } | |
806 | ||
807 | static int push(int nr_spec, char **specs) | |
808 | { | |
809 | struct discovery *heads = discover_refs("git-receive-pack"); | |
810 | int ret; | |
811 | ||
812 | if (heads->proto_git) | |
813 | ret = push_git(heads, nr_spec, specs); | |
814 | else | |
815 | ret = push_dav(nr_spec, specs); | |
816 | free_discovery(heads); | |
817 | return ret; | |
818 | } | |
819 | ||
ae4efe19 SP |
820 | static void parse_push(struct strbuf *buf) |
821 | { | |
822 | char **specs = NULL; | |
5238cbf6 | 823 | int alloc_spec = 0, nr_spec = 0, i, ret; |
ae4efe19 SP |
824 | |
825 | do { | |
826 | if (!prefixcmp(buf->buf, "push ")) { | |
827 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); | |
828 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
829 | } | |
830 | else | |
831 | die("http transport does not support %s", buf->buf); | |
832 | ||
833 | strbuf_reset(buf); | |
834 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
dc4cd767 | 835 | goto free_specs; |
ae4efe19 SP |
836 | if (!*buf->buf) |
837 | break; | |
838 | } while (1); | |
839 | ||
5238cbf6 | 840 | ret = push(nr_spec, specs); |
ae4efe19 SP |
841 | printf("\n"); |
842 | fflush(stdout); | |
dc4cd767 | 843 | |
5238cbf6 SP |
844 | if (ret) |
845 | exit(128); /* error already reported */ | |
846 | ||
dc4cd767 JM |
847 | free_specs: |
848 | for (i = 0; i < nr_spec; i++) | |
849 | free(specs[i]); | |
850 | free(specs); | |
ae4efe19 SP |
851 | } |
852 | ||
a2d725b7 DB |
853 | int main(int argc, const char **argv) |
854 | { | |
a2d725b7 | 855 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 856 | int nongit; |
a2d725b7 | 857 | |
c6dfb399 | 858 | git_extract_argv0_path(argv[0]); |
a45d3d7e | 859 | setup_git_directory_gently(&nongit); |
a2d725b7 DB |
860 | if (argc < 2) { |
861 | fprintf(stderr, "Remote needed\n"); | |
862 | return 1; | |
863 | } | |
864 | ||
ef08ef9e SP |
865 | options.verbosity = 1; |
866 | options.progress = !!isatty(2); | |
de1a2fdd | 867 | options.thin = 1; |
ef08ef9e | 868 | |
a2d725b7 DB |
869 | remote = remote_get(argv[1]); |
870 | ||
871 | if (argc > 2) { | |
d8fab072 | 872 | end_url_with_slash(&buf, argv[2]); |
a2d725b7 | 873 | } else { |
d8fab072 | 874 | end_url_with_slash(&buf, remote->url[0]); |
a2d725b7 DB |
875 | } |
876 | ||
d8fab072 TRC |
877 | url = strbuf_detach(&buf, NULL); |
878 | ||
a4ddbc33 | 879 | http_init(remote, url, 0); |
888692b7 | 880 | |
a2d725b7 | 881 | do { |
1843f0ce SR |
882 | if (strbuf_getline(&buf, stdin, '\n') == EOF) { |
883 | if (ferror(stdin)) | |
884 | fprintf(stderr, "Error reading command stream\n"); | |
885 | else | |
886 | fprintf(stderr, "Unexpected end of command stream\n"); | |
887 | return 1; | |
888 | } | |
889 | if (buf.len == 0) | |
a2d725b7 DB |
890 | break; |
891 | if (!prefixcmp(buf.buf, "fetch ")) { | |
a45d3d7e DB |
892 | if (nongit) |
893 | die("Fetch attempted without a local repo"); | |
292ce46b SP |
894 | parse_fetch(&buf); |
895 | ||
ae4efe19 | 896 | } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) { |
97cc7bc4 SP |
897 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
898 | output_refs(get_refs(for_push)); | |
ae4efe19 SP |
899 | |
900 | } else if (!prefixcmp(buf.buf, "push ")) { | |
901 | parse_push(&buf); | |
902 | ||
ef08ef9e SP |
903 | } else if (!prefixcmp(buf.buf, "option ")) { |
904 | char *name = buf.buf + strlen("option "); | |
905 | char *value = strchr(name, ' '); | |
906 | int result; | |
907 | ||
908 | if (value) | |
909 | *value++ = '\0'; | |
910 | else | |
911 | value = "true"; | |
912 | ||
913 | result = set_option(name, value); | |
914 | if (!result) | |
915 | printf("ok\n"); | |
916 | else if (result < 0) | |
917 | printf("error invalid value\n"); | |
918 | else | |
919 | printf("unsupported\n"); | |
a2d725b7 | 920 | fflush(stdout); |
ef08ef9e | 921 | |
a2d725b7 DB |
922 | } else if (!strcmp(buf.buf, "capabilities")) { |
923 | printf("fetch\n"); | |
ef08ef9e | 924 | printf("option\n"); |
ae4efe19 | 925 | printf("push\n"); |
a2d725b7 DB |
926 | printf("\n"); |
927 | fflush(stdout); | |
928 | } else { | |
1843f0ce | 929 | fprintf(stderr, "Unknown command '%s'\n", buf.buf); |
a2d725b7 DB |
930 | return 1; |
931 | } | |
932 | strbuf_reset(&buf); | |
933 | } while (1); | |
888692b7 TRC |
934 | |
935 | http_cleanup(); | |
936 | ||
a2d725b7 DB |
937 | return 0; |
938 | } |