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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 | 94 | { |
4656bf47 SP |
95 | struct strbuf exp = STRBUF_INIT; |
96 | struct strbuf type = STRBUF_INIT; | |
a2d725b7 | 97 | struct strbuf buffer = STRBUF_INIT; |
97cc7bc4 | 98 | struct discovery *last = last_discovery; |
a2d725b7 | 99 | char *refs_url; |
243c329c | 100 | int http_ret, maybe_smart = 0; |
a2d725b7 | 101 | |
97cc7bc4 SP |
102 | if (last && !strcmp(service, last->service)) |
103 | return last; | |
104 | free_discovery(last); | |
a2d725b7 | 105 | |
d8fab072 | 106 | strbuf_addf(&buffer, "%sinfo/refs", url); |
02572c2e JK |
107 | if ((!prefixcmp(url, "http://") || !prefixcmp(url, "https://")) && |
108 | git_env_bool("GIT_SMART_HTTP", 1)) { | |
243c329c | 109 | maybe_smart = 1; |
97cc7bc4 SP |
110 | if (!strchr(url, '?')) |
111 | strbuf_addch(&buffer, '?'); | |
112 | else | |
113 | strbuf_addch(&buffer, '&'); | |
114 | strbuf_addf(&buffer, "service=%s", service); | |
115 | } | |
116 | refs_url = strbuf_detach(&buffer, NULL); | |
a2d725b7 | 117 | |
4656bf47 | 118 | http_ret = http_get_strbuf(refs_url, &type, &buffer, HTTP_NO_CACHE); |
a2d725b7 DB |
119 | switch (http_ret) { |
120 | case HTTP_OK: | |
121 | break; | |
122 | case HTTP_MISSING_TARGET: | |
123 | die("%s not found: did you run git update-server-info on the" | |
124 | " server?", refs_url); | |
42653c09 SC |
125 | case HTTP_NOAUTH: |
126 | die("Authentication failed"); | |
a2d725b7 DB |
127 | default: |
128 | http_error(refs_url, http_ret); | |
129 | die("HTTP request failed"); | |
130 | } | |
131 | ||
97cc7bc4 SP |
132 | last= xcalloc(1, sizeof(*last_discovery)); |
133 | last->service = service; | |
134 | last->buf_alloc = strbuf_detach(&buffer, &last->len); | |
135 | last->buf = last->buf_alloc; | |
136 | ||
4656bf47 SP |
137 | strbuf_addf(&exp, "application/x-%s-advertisement", service); |
138 | if (maybe_smart && | |
139 | (5 <= last->len && last->buf[4] == '#') && | |
140 | !strbuf_cmp(&exp, &type)) { | |
141 | /* | |
142 | * smart HTTP response; validate that the service | |
97cc7bc4 SP |
143 | * pkt-line matches our request. |
144 | */ | |
97cc7bc4 SP |
145 | if (packet_get_line(&buffer, &last->buf, &last->len) <= 0) |
146 | die("%s has invalid packet header", refs_url); | |
147 | if (buffer.len && buffer.buf[buffer.len - 1] == '\n') | |
148 | strbuf_setlen(&buffer, buffer.len - 1); | |
149 | ||
4656bf47 | 150 | strbuf_reset(&exp); |
97cc7bc4 SP |
151 | strbuf_addf(&exp, "# service=%s", service); |
152 | if (strbuf_cmp(&exp, &buffer)) | |
153 | die("invalid server response; got '%s'", buffer.buf); | |
154 | strbuf_release(&exp); | |
155 | ||
156 | /* The header can include additional metadata lines, up | |
157 | * until a packet flush marker. Ignore these now, but | |
158 | * in the future we might start to scan them. | |
159 | */ | |
160 | strbuf_reset(&buffer); | |
161 | while (packet_get_line(&buffer, &last->buf, &last->len) > 0) | |
162 | strbuf_reset(&buffer); | |
163 | ||
164 | last->proto_git = 1; | |
165 | } | |
166 | ||
167 | free(refs_url); | |
4656bf47 SP |
168 | strbuf_release(&exp); |
169 | strbuf_release(&type); | |
97cc7bc4 SP |
170 | strbuf_release(&buffer); |
171 | last_discovery = last; | |
172 | return last; | |
173 | } | |
174 | ||
ae6a5609 | 175 | static int write_discovery(int in, int out, void *data) |
97cc7bc4 SP |
176 | { |
177 | struct discovery *heads = data; | |
178 | int err = 0; | |
ae6a5609 | 179 | if (write_in_full(out, heads->buf, heads->len) != heads->len) |
97cc7bc4 | 180 | err = 1; |
ae6a5609 | 181 | close(out); |
97cc7bc4 SP |
182 | return err; |
183 | } | |
184 | ||
02f79147 | 185 | static struct ref *parse_git_refs(struct discovery *heads, int for_push) |
97cc7bc4 SP |
186 | { |
187 | struct ref *list = NULL; | |
188 | struct async async; | |
189 | ||
190 | memset(&async, 0, sizeof(async)); | |
191 | async.proc = write_discovery; | |
192 | async.data = heads; | |
ae6a5609 | 193 | async.out = -1; |
97cc7bc4 SP |
194 | |
195 | if (start_async(&async)) | |
196 | die("cannot start thread to parse advertised refs"); | |
200888ef | 197 | get_remote_heads(async.out, &list, |
02f79147 | 198 | for_push ? REF_NORMAL : 0, NULL); |
97cc7bc4 SP |
199 | close(async.out); |
200 | if (finish_async(&async)) | |
201 | die("ref parsing thread failed"); | |
202 | return list; | |
203 | } | |
204 | ||
205 | static struct ref *parse_info_refs(struct discovery *heads) | |
206 | { | |
207 | char *data, *start, *mid; | |
208 | char *ref_name; | |
209 | int i = 0; | |
210 | ||
211 | struct ref *refs = NULL; | |
212 | struct ref *ref = NULL; | |
213 | struct ref *last_ref = NULL; | |
214 | ||
215 | data = heads->buf; | |
a2d725b7 DB |
216 | start = NULL; |
217 | mid = data; | |
97cc7bc4 | 218 | while (i < heads->len) { |
a2d725b7 DB |
219 | if (!start) { |
220 | start = &data[i]; | |
221 | } | |
222 | if (data[i] == '\t') | |
223 | mid = &data[i]; | |
224 | if (data[i] == '\n') { | |
6e8e67f3 JP |
225 | if (mid - start != 40) |
226 | die("%sinfo/refs not valid: is this a git repository?", url); | |
a2d725b7 DB |
227 | data[i] = 0; |
228 | ref_name = mid + 1; | |
229 | ref = xmalloc(sizeof(struct ref) + | |
230 | strlen(ref_name) + 1); | |
231 | memset(ref, 0, sizeof(struct ref)); | |
232 | strcpy(ref->name, ref_name); | |
233 | get_sha1_hex(start, ref->old_sha1); | |
234 | if (!refs) | |
235 | refs = ref; | |
236 | if (last_ref) | |
237 | last_ref->next = ref; | |
238 | last_ref = ref; | |
239 | start = NULL; | |
240 | } | |
241 | i++; | |
242 | } | |
243 | ||
a2d725b7 | 244 | ref = alloc_ref("HEAD"); |
aec49756 | 245 | if (!http_fetch_ref(url, ref) && |
a2d725b7 DB |
246 | !resolve_remote_symref(ref, refs)) { |
247 | ref->next = refs; | |
248 | refs = ref; | |
249 | } else { | |
250 | free(ref); | |
251 | } | |
252 | ||
a2d725b7 DB |
253 | return refs; |
254 | } | |
255 | ||
97cc7bc4 SP |
256 | static struct ref *get_refs(int for_push) |
257 | { | |
258 | struct discovery *heads; | |
259 | ||
260 | if (for_push) | |
261 | heads = discover_refs("git-receive-pack"); | |
262 | else | |
263 | heads = discover_refs("git-upload-pack"); | |
264 | ||
265 | if (heads->proto_git) | |
02f79147 | 266 | return parse_git_refs(heads, for_push); |
97cc7bc4 SP |
267 | return parse_info_refs(heads); |
268 | } | |
269 | ||
ae4efe19 SP |
270 | static void output_refs(struct ref *refs) |
271 | { | |
272 | struct ref *posn; | |
273 | for (posn = refs; posn; posn = posn->next) { | |
274 | if (posn->symref) | |
275 | printf("@%s %s\n", posn->symref, posn->name); | |
276 | else | |
277 | printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name); | |
278 | } | |
279 | printf("\n"); | |
280 | fflush(stdout); | |
281 | free_refs(refs); | |
282 | } | |
283 | ||
de1a2fdd SP |
284 | struct rpc_state { |
285 | const char *service_name; | |
286 | const char **argv; | |
8150749d | 287 | struct strbuf *stdin_preamble; |
de1a2fdd SP |
288 | char *service_url; |
289 | char *hdr_content_type; | |
290 | char *hdr_accept; | |
291 | char *buf; | |
292 | size_t alloc; | |
293 | size_t len; | |
294 | size_t pos; | |
295 | int in; | |
296 | int out; | |
297 | struct strbuf result; | |
b8538603 | 298 | unsigned gzip_request : 1; |
6c81a990 | 299 | unsigned initial_buffer : 1; |
de1a2fdd SP |
300 | }; |
301 | ||
302 | static size_t rpc_out(void *ptr, size_t eltsize, | |
303 | size_t nmemb, void *buffer_) | |
304 | { | |
305 | size_t max = eltsize * nmemb; | |
306 | struct rpc_state *rpc = buffer_; | |
307 | size_t avail = rpc->len - rpc->pos; | |
308 | ||
309 | if (!avail) { | |
6c81a990 | 310 | rpc->initial_buffer = 0; |
de1a2fdd SP |
311 | avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc); |
312 | if (!avail) | |
313 | return 0; | |
314 | rpc->pos = 0; | |
315 | rpc->len = avail; | |
316 | } | |
317 | ||
48310608 | 318 | if (max < avail) |
de1a2fdd SP |
319 | avail = max; |
320 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
321 | rpc->pos += avail; | |
322 | return avail; | |
323 | } | |
324 | ||
6c81a990 | 325 | #ifndef NO_CURL_IOCTL |
5092d3ec | 326 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
327 | { |
328 | struct rpc_state *rpc = clientp; | |
329 | ||
330 | switch (cmd) { | |
331 | case CURLIOCMD_NOP: | |
332 | return CURLIOE_OK; | |
333 | ||
334 | case CURLIOCMD_RESTARTREAD: | |
335 | if (rpc->initial_buffer) { | |
336 | rpc->pos = 0; | |
337 | return CURLIOE_OK; | |
338 | } | |
339 | fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n"); | |
340 | return CURLIOE_FAILRESTART; | |
341 | ||
342 | default: | |
343 | return CURLIOE_UNKNOWNCMD; | |
344 | } | |
345 | } | |
346 | #endif | |
347 | ||
a04ff3ec | 348 | static size_t rpc_in(char *ptr, size_t eltsize, |
de1a2fdd SP |
349 | size_t nmemb, void *buffer_) |
350 | { | |
351 | size_t size = eltsize * nmemb; | |
352 | struct rpc_state *rpc = buffer_; | |
353 | write_or_die(rpc->in, ptr, size); | |
354 | return size; | |
355 | } | |
356 | ||
206b099d SP |
357 | static int run_slot(struct active_request_slot *slot) |
358 | { | |
b81401c1 | 359 | int err; |
206b099d SP |
360 | struct slot_results results; |
361 | ||
362 | slot->results = &results; | |
363 | slot->curl_result = curl_easy_perform(slot->curl); | |
364 | finish_active_slot(slot); | |
365 | ||
1960897e | 366 | err = handle_curl_result(&results); |
b81401c1 JK |
367 | if (err != HTTP_OK && err != HTTP_REAUTH) { |
368 | error("RPC failed; result=%d, HTTP code = %ld", | |
369 | results.curl_result, results.http_code); | |
206b099d SP |
370 | } |
371 | ||
372 | return err; | |
373 | } | |
374 | ||
375 | static int probe_rpc(struct rpc_state *rpc) | |
376 | { | |
377 | struct active_request_slot *slot; | |
378 | struct curl_slist *headers = NULL; | |
379 | struct strbuf buf = STRBUF_INIT; | |
380 | int err; | |
381 | ||
382 | slot = get_active_slot(); | |
383 | ||
384 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
385 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
386 | ||
387 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
388 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
389 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); | |
aa90b969 | 390 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, NULL); |
206b099d SP |
391 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000"); |
392 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4); | |
393 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
394 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
395 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf); | |
396 | ||
397 | err = run_slot(slot); | |
398 | ||
399 | curl_slist_free_all(headers); | |
400 | strbuf_release(&buf); | |
401 | return err; | |
402 | } | |
403 | ||
de1a2fdd SP |
404 | static int post_rpc(struct rpc_state *rpc) |
405 | { | |
406 | struct active_request_slot *slot; | |
de1a2fdd | 407 | struct curl_slist *headers = NULL; |
b8538603 SP |
408 | int use_gzip = rpc->gzip_request; |
409 | char *gzip_body = NULL; | |
37711549 | 410 | size_t gzip_size = 0; |
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 | 434 | if (large_request) { |
b81401c1 JK |
435 | do { |
436 | err = probe_rpc(rpc); | |
437 | } while (err == HTTP_REAUTH); | |
438 | if (err != HTTP_OK) | |
439 | return -1; | |
206b099d SP |
440 | } |
441 | ||
abf8df86 JK |
442 | headers = curl_slist_append(headers, rpc->hdr_content_type); |
443 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
444 | headers = curl_slist_append(headers, "Expect:"); | |
445 | ||
446 | retry: | |
de1a2fdd | 447 | slot = get_active_slot(); |
de1a2fdd | 448 | |
de1a2fdd | 449 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
d21f9794 | 450 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); |
de1a2fdd | 451 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); |
aa90b969 | 452 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
de1a2fdd | 453 | |
de1a2fdd SP |
454 | if (large_request) { |
455 | /* The request body is large and the size cannot be predicted. | |
456 | * We must use chunked encoding to send it. | |
457 | */ | |
de1a2fdd | 458 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); |
6c81a990 | 459 | rpc->initial_buffer = 1; |
de1a2fdd SP |
460 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
461 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
462 | #ifndef NO_CURL_IOCTL |
463 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
464 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
465 | #endif | |
de1a2fdd SP |
466 | if (options.verbosity > 1) { |
467 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
468 | fflush(stderr); | |
469 | } | |
470 | ||
2e736fd5 JK |
471 | } else if (gzip_body) { |
472 | /* | |
473 | * If we are looping to retry authentication, then the previous | |
474 | * run will have set up the headers and gzip buffer already, | |
475 | * and we just need to send it. | |
476 | */ | |
477 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
478 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, gzip_size); | |
479 | ||
b8538603 SP |
480 | } else if (use_gzip && 1024 < rpc->len) { |
481 | /* The client backend isn't giving us compressed data so | |
482 | * we can try to deflate it ourselves, this may save on. | |
483 | * the transfer time. | |
484 | */ | |
ef49a7a0 | 485 | git_zstream stream; |
b8538603 SP |
486 | int ret; |
487 | ||
488 | memset(&stream, 0, sizeof(stream)); | |
55bb5c91 | 489 | git_deflate_init_gzip(&stream, Z_BEST_COMPRESSION); |
df126e10 JK |
490 | gzip_size = git_deflate_bound(&stream, rpc->len); |
491 | gzip_body = xmalloc(gzip_size); | |
b8538603 SP |
492 | |
493 | stream.next_in = (unsigned char *)rpc->buf; | |
494 | stream.avail_in = rpc->len; | |
495 | stream.next_out = (unsigned char *)gzip_body; | |
df126e10 | 496 | stream.avail_out = gzip_size; |
b8538603 | 497 | |
55bb5c91 | 498 | ret = git_deflate(&stream, Z_FINISH); |
b8538603 SP |
499 | if (ret != Z_STREAM_END) |
500 | die("cannot deflate request; zlib deflate error %d", ret); | |
501 | ||
55bb5c91 | 502 | ret = git_deflate_end_gently(&stream); |
b8538603 SP |
503 | if (ret != Z_OK) |
504 | die("cannot deflate request; zlib end error %d", ret); | |
505 | ||
df126e10 | 506 | gzip_size = stream.total_out; |
b8538603 SP |
507 | |
508 | headers = curl_slist_append(headers, "Content-Encoding: gzip"); | |
509 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
df126e10 | 510 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, gzip_size); |
b8538603 SP |
511 | |
512 | if (options.verbosity > 1) { | |
513 | fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n", | |
514 | rpc->service_name, | |
df126e10 | 515 | (unsigned long)rpc->len, (unsigned long)gzip_size); |
b8538603 SP |
516 | fflush(stderr); |
517 | } | |
de1a2fdd SP |
518 | } else { |
519 | /* We know the complete request size in advance, use the | |
520 | * more normal Content-Length approach. | |
521 | */ | |
522 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf); | |
523 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len); | |
524 | if (options.verbosity > 1) { | |
525 | fprintf(stderr, "POST %s (%lu bytes)\n", | |
526 | rpc->service_name, (unsigned long)rpc->len); | |
527 | fflush(stderr); | |
528 | } | |
529 | } | |
530 | ||
531 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
532 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in); | |
533 | curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc); | |
534 | ||
abf8df86 | 535 | err = run_slot(slot); |
2e736fd5 | 536 | if (err == HTTP_REAUTH && !large_request) |
abf8df86 | 537 | goto retry; |
b81401c1 JK |
538 | if (err != HTTP_OK) |
539 | err = -1; | |
de1a2fdd SP |
540 | |
541 | curl_slist_free_all(headers); | |
b8538603 | 542 | free(gzip_body); |
de1a2fdd SP |
543 | return err; |
544 | } | |
545 | ||
546 | static int rpc_service(struct rpc_state *rpc, struct discovery *heads) | |
547 | { | |
548 | const char *svc = rpc->service_name; | |
549 | struct strbuf buf = STRBUF_INIT; | |
8150749d | 550 | struct strbuf *preamble = rpc->stdin_preamble; |
de1a2fdd SP |
551 | struct child_process client; |
552 | int err = 0; | |
553 | ||
de1a2fdd SP |
554 | memset(&client, 0, sizeof(client)); |
555 | client.in = -1; | |
556 | client.out = -1; | |
557 | client.git_cmd = 1; | |
558 | client.argv = rpc->argv; | |
559 | if (start_command(&client)) | |
560 | exit(1); | |
8150749d IT |
561 | if (preamble) |
562 | write_or_die(client.in, preamble->buf, preamble->len); | |
de1a2fdd SP |
563 | if (heads) |
564 | write_or_die(client.in, heads->buf, heads->len); | |
565 | ||
566 | rpc->alloc = http_post_buffer; | |
567 | rpc->buf = xmalloc(rpc->alloc); | |
568 | rpc->in = client.in; | |
569 | rpc->out = client.out; | |
570 | strbuf_init(&rpc->result, 0); | |
571 | ||
d8fab072 | 572 | strbuf_addf(&buf, "%s%s", url, svc); |
de1a2fdd SP |
573 | rpc->service_url = strbuf_detach(&buf, NULL); |
574 | ||
575 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
576 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
577 | ||
8efa5f62 | 578 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
579 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
580 | ||
581 | while (!err) { | |
582 | int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc); | |
583 | if (!n) | |
584 | break; | |
585 | rpc->pos = 0; | |
586 | rpc->len = n; | |
587 | err |= post_rpc(rpc); | |
588 | } | |
de1a2fdd SP |
589 | |
590 | close(client.in); | |
de1a2fdd | 591 | client.in = -1; |
6cdf0223 SP |
592 | if (!err) { |
593 | strbuf_read(&rpc->result, client.out, 0); | |
594 | } else { | |
595 | char buf[4096]; | |
596 | for (;;) | |
597 | if (xread(client.out, buf, sizeof(buf)) <= 0) | |
598 | break; | |
599 | } | |
b4ee10f6 SP |
600 | |
601 | close(client.out); | |
de1a2fdd SP |
602 | client.out = -1; |
603 | ||
604 | err |= finish_command(&client); | |
605 | free(rpc->service_url); | |
606 | free(rpc->hdr_content_type); | |
607 | free(rpc->hdr_accept); | |
608 | free(rpc->buf); | |
609 | strbuf_release(&buf); | |
610 | return err; | |
611 | } | |
612 | ||
292ce46b SP |
613 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
614 | { | |
26e1e0b2 | 615 | struct walker *walker; |
292ce46b SP |
616 | char **targets = xmalloc(nr_heads * sizeof(char*)); |
617 | int ret, i; | |
618 | ||
249b2004 SP |
619 | if (options.depth) |
620 | die("dumb http transport does not support --depth"); | |
292ce46b SP |
621 | for (i = 0; i < nr_heads; i++) |
622 | targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
623 | ||
26e1e0b2 | 624 | walker = get_http_walker(url); |
292ce46b SP |
625 | walker->get_all = 1; |
626 | walker->get_tree = 1; | |
627 | walker->get_history = 1; | |
ef08ef9e | 628 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
629 | walker->get_recover = 0; |
630 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
26e1e0b2 | 631 | walker_free(walker); |
292ce46b SP |
632 | |
633 | for (i = 0; i < nr_heads; i++) | |
634 | free(targets[i]); | |
635 | free(targets); | |
636 | ||
637 | return ret ? error("Fetch failed.") : 0; | |
638 | } | |
639 | ||
249b2004 SP |
640 | static int fetch_git(struct discovery *heads, |
641 | int nr_heads, struct ref **to_fetch) | |
642 | { | |
643 | struct rpc_state rpc; | |
8150749d | 644 | struct strbuf preamble = STRBUF_INIT; |
249b2004 | 645 | char *depth_arg = NULL; |
249b2004 | 646 | int argc = 0, i, err; |
8150749d | 647 | const char *argv[15]; |
249b2004 | 648 | |
249b2004 SP |
649 | argv[argc++] = "fetch-pack"; |
650 | argv[argc++] = "--stateless-rpc"; | |
8150749d | 651 | argv[argc++] = "--stdin"; |
249b2004 SP |
652 | argv[argc++] = "--lock-pack"; |
653 | if (options.followtags) | |
654 | argv[argc++] = "--include-tag"; | |
655 | if (options.thin) | |
656 | argv[argc++] = "--thin"; | |
657 | if (options.verbosity >= 3) { | |
658 | argv[argc++] = "-v"; | |
659 | argv[argc++] = "-v"; | |
660 | } | |
661 | if (!options.progress) | |
662 | argv[argc++] = "--no-progress"; | |
663 | if (options.depth) { | |
664 | struct strbuf buf = STRBUF_INIT; | |
665 | strbuf_addf(&buf, "--depth=%lu", options.depth); | |
666 | depth_arg = strbuf_detach(&buf, NULL); | |
667 | argv[argc++] = depth_arg; | |
668 | } | |
669 | argv[argc++] = url; | |
8150749d IT |
670 | argv[argc++] = NULL; |
671 | ||
249b2004 SP |
672 | for (i = 0; i < nr_heads; i++) { |
673 | struct ref *ref = to_fetch[i]; | |
674 | if (!ref->name || !*ref->name) | |
675 | die("cannot fetch by sha1 over smart http"); | |
8150749d | 676 | packet_buf_write(&preamble, "%s\n", ref->name); |
249b2004 | 677 | } |
8150749d | 678 | packet_buf_flush(&preamble); |
249b2004 SP |
679 | |
680 | memset(&rpc, 0, sizeof(rpc)); | |
681 | rpc.service_name = "git-upload-pack", | |
682 | rpc.argv = argv; | |
8150749d | 683 | rpc.stdin_preamble = &preamble; |
b8538603 | 684 | rpc.gzip_request = 1; |
249b2004 SP |
685 | |
686 | err = rpc_service(&rpc, heads); | |
687 | if (rpc.result.len) | |
688 | safe_write(1, rpc.result.buf, rpc.result.len); | |
689 | strbuf_release(&rpc.result); | |
8150749d | 690 | strbuf_release(&preamble); |
249b2004 SP |
691 | free(depth_arg); |
692 | return err; | |
693 | } | |
694 | ||
695 | static int fetch(int nr_heads, struct ref **to_fetch) | |
696 | { | |
697 | struct discovery *d = discover_refs("git-upload-pack"); | |
698 | if (d->proto_git) | |
699 | return fetch_git(d, nr_heads, to_fetch); | |
700 | else | |
701 | return fetch_dumb(nr_heads, to_fetch); | |
702 | } | |
703 | ||
292ce46b SP |
704 | static void parse_fetch(struct strbuf *buf) |
705 | { | |
706 | struct ref **to_fetch = NULL; | |
707 | struct ref *list_head = NULL; | |
708 | struct ref **list = &list_head; | |
709 | int alloc_heads = 0, nr_heads = 0; | |
710 | ||
711 | do { | |
712 | if (!prefixcmp(buf->buf, "fetch ")) { | |
713 | char *p = buf->buf + strlen("fetch "); | |
714 | char *name; | |
715 | struct ref *ref; | |
716 | unsigned char old_sha1[20]; | |
717 | ||
718 | if (strlen(p) < 40 || get_sha1_hex(p, old_sha1)) | |
719 | die("protocol error: expected sha/ref, got %s'", p); | |
720 | if (p[40] == ' ') | |
721 | name = p + 41; | |
722 | else if (!p[40]) | |
723 | name = ""; | |
724 | else | |
725 | die("protocol error: expected sha/ref, got %s'", p); | |
726 | ||
727 | ref = alloc_ref(name); | |
728 | hashcpy(ref->old_sha1, old_sha1); | |
729 | ||
730 | *list = ref; | |
731 | list = &ref->next; | |
732 | ||
733 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
734 | to_fetch[nr_heads++] = ref; | |
735 | } | |
736 | else | |
737 | die("http transport does not support %s", buf->buf); | |
738 | ||
739 | strbuf_reset(buf); | |
740 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
741 | return; | |
742 | if (!*buf->buf) | |
743 | break; | |
744 | } while (1); | |
745 | ||
249b2004 | 746 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
747 | exit(128); /* error already reported */ |
748 | free_refs(list_head); | |
749 | free(to_fetch); | |
750 | ||
751 | printf("\n"); | |
752 | fflush(stdout); | |
753 | strbuf_reset(buf); | |
754 | } | |
755 | ||
ae4efe19 SP |
756 | static int push_dav(int nr_spec, char **specs) |
757 | { | |
758 | const char **argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
759 | int argc = 0, i; | |
760 | ||
761 | argv[argc++] = "http-push"; | |
762 | argv[argc++] = "--helper-status"; | |
763 | if (options.dry_run) | |
764 | argv[argc++] = "--dry-run"; | |
765 | if (options.verbosity > 1) | |
766 | argv[argc++] = "--verbose"; | |
767 | argv[argc++] = url; | |
768 | for (i = 0; i < nr_spec; i++) | |
769 | argv[argc++] = specs[i]; | |
770 | argv[argc++] = NULL; | |
771 | ||
772 | if (run_command_v_opt(argv, RUN_GIT_CMD)) | |
773 | die("git-%s failed", argv[0]); | |
774 | free(argv); | |
775 | return 0; | |
776 | } | |
777 | ||
de1a2fdd SP |
778 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
779 | { | |
780 | struct rpc_state rpc; | |
781 | const char **argv; | |
782 | int argc = 0, i, err; | |
783 | ||
784 | argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
785 | argv[argc++] = "send-pack"; | |
786 | argv[argc++] = "--stateless-rpc"; | |
787 | argv[argc++] = "--helper-status"; | |
788 | if (options.thin) | |
789 | argv[argc++] = "--thin"; | |
790 | if (options.dry_run) | |
791 | argv[argc++] = "--dry-run"; | |
c207e34f CB |
792 | if (options.verbosity == 0) |
793 | argv[argc++] = "--quiet"; | |
794 | else if (options.verbosity > 1) | |
de1a2fdd | 795 | argv[argc++] = "--verbose"; |
391b1f20 | 796 | argv[argc++] = options.progress ? "--progress" : "--no-progress"; |
de1a2fdd SP |
797 | argv[argc++] = url; |
798 | for (i = 0; i < nr_spec; i++) | |
799 | argv[argc++] = specs[i]; | |
800 | argv[argc++] = NULL; | |
801 | ||
802 | memset(&rpc, 0, sizeof(rpc)); | |
803 | rpc.service_name = "git-receive-pack", | |
804 | rpc.argv = argv; | |
805 | ||
806 | err = rpc_service(&rpc, heads); | |
807 | if (rpc.result.len) | |
808 | safe_write(1, rpc.result.buf, rpc.result.len); | |
809 | strbuf_release(&rpc.result); | |
810 | free(argv); | |
811 | return err; | |
812 | } | |
813 | ||
814 | static int push(int nr_spec, char **specs) | |
815 | { | |
816 | struct discovery *heads = discover_refs("git-receive-pack"); | |
817 | int ret; | |
818 | ||
819 | if (heads->proto_git) | |
820 | ret = push_git(heads, nr_spec, specs); | |
821 | else | |
822 | ret = push_dav(nr_spec, specs); | |
823 | free_discovery(heads); | |
824 | return ret; | |
825 | } | |
826 | ||
ae4efe19 SP |
827 | static void parse_push(struct strbuf *buf) |
828 | { | |
829 | char **specs = NULL; | |
5238cbf6 | 830 | int alloc_spec = 0, nr_spec = 0, i, ret; |
ae4efe19 SP |
831 | |
832 | do { | |
833 | if (!prefixcmp(buf->buf, "push ")) { | |
834 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); | |
835 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
836 | } | |
837 | else | |
838 | die("http transport does not support %s", buf->buf); | |
839 | ||
840 | strbuf_reset(buf); | |
841 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
dc4cd767 | 842 | goto free_specs; |
ae4efe19 SP |
843 | if (!*buf->buf) |
844 | break; | |
845 | } while (1); | |
846 | ||
5238cbf6 | 847 | ret = push(nr_spec, specs); |
ae4efe19 SP |
848 | printf("\n"); |
849 | fflush(stdout); | |
dc4cd767 | 850 | |
5238cbf6 SP |
851 | if (ret) |
852 | exit(128); /* error already reported */ | |
853 | ||
dc4cd767 JM |
854 | free_specs: |
855 | for (i = 0; i < nr_spec; i++) | |
856 | free(specs[i]); | |
857 | free(specs); | |
ae4efe19 SP |
858 | } |
859 | ||
a2d725b7 DB |
860 | int main(int argc, const char **argv) |
861 | { | |
a2d725b7 | 862 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 863 | int nongit; |
a2d725b7 | 864 | |
c6dfb399 | 865 | git_extract_argv0_path(argv[0]); |
a45d3d7e | 866 | setup_git_directory_gently(&nongit); |
a2d725b7 DB |
867 | if (argc < 2) { |
868 | fprintf(stderr, "Remote needed\n"); | |
869 | return 1; | |
870 | } | |
871 | ||
ef08ef9e SP |
872 | options.verbosity = 1; |
873 | options.progress = !!isatty(2); | |
de1a2fdd | 874 | options.thin = 1; |
ef08ef9e | 875 | |
a2d725b7 DB |
876 | remote = remote_get(argv[1]); |
877 | ||
878 | if (argc > 2) { | |
d8fab072 | 879 | end_url_with_slash(&buf, argv[2]); |
a2d725b7 | 880 | } else { |
d8fab072 | 881 | end_url_with_slash(&buf, remote->url[0]); |
a2d725b7 DB |
882 | } |
883 | ||
d8fab072 TRC |
884 | url = strbuf_detach(&buf, NULL); |
885 | ||
a4ddbc33 | 886 | http_init(remote, url, 0); |
888692b7 | 887 | |
a2d725b7 | 888 | do { |
1843f0ce SR |
889 | if (strbuf_getline(&buf, stdin, '\n') == EOF) { |
890 | if (ferror(stdin)) | |
891 | fprintf(stderr, "Error reading command stream\n"); | |
892 | else | |
893 | fprintf(stderr, "Unexpected end of command stream\n"); | |
894 | return 1; | |
895 | } | |
896 | if (buf.len == 0) | |
a2d725b7 DB |
897 | break; |
898 | if (!prefixcmp(buf.buf, "fetch ")) { | |
a45d3d7e DB |
899 | if (nongit) |
900 | die("Fetch attempted without a local repo"); | |
292ce46b SP |
901 | parse_fetch(&buf); |
902 | ||
ae4efe19 | 903 | } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) { |
97cc7bc4 SP |
904 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
905 | output_refs(get_refs(for_push)); | |
ae4efe19 SP |
906 | |
907 | } else if (!prefixcmp(buf.buf, "push ")) { | |
908 | parse_push(&buf); | |
909 | ||
ef08ef9e SP |
910 | } else if (!prefixcmp(buf.buf, "option ")) { |
911 | char *name = buf.buf + strlen("option "); | |
912 | char *value = strchr(name, ' '); | |
913 | int result; | |
914 | ||
915 | if (value) | |
916 | *value++ = '\0'; | |
917 | else | |
918 | value = "true"; | |
919 | ||
920 | result = set_option(name, value); | |
921 | if (!result) | |
922 | printf("ok\n"); | |
923 | else if (result < 0) | |
924 | printf("error invalid value\n"); | |
925 | else | |
926 | printf("unsupported\n"); | |
a2d725b7 | 927 | fflush(stdout); |
ef08ef9e | 928 | |
a2d725b7 DB |
929 | } else if (!strcmp(buf.buf, "capabilities")) { |
930 | printf("fetch\n"); | |
ef08ef9e | 931 | printf("option\n"); |
ae4efe19 | 932 | printf("push\n"); |
a2d725b7 DB |
933 | printf("\n"); |
934 | fflush(stdout); | |
935 | } else { | |
1843f0ce | 936 | fprintf(stderr, "Unknown command '%s'\n", buf.buf); |
a2d725b7 DB |
937 | return 1; |
938 | } | |
939 | strbuf_reset(&buf); | |
940 | } while (1); | |
888692b7 TRC |
941 | |
942 | http_cleanup(); | |
943 | ||
a2d725b7 DB |
944 | return 0; |
945 | } |