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Commit | Line | Data |
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a2d725b7 | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
a2d725b7 | 3 | #include "remote.h" |
ad6ac124 | 4 | #include "connect.h" |
a2d725b7 DB |
5 | #include "strbuf.h" |
6 | #include "walker.h" | |
7 | #include "http.h" | |
d01a8e32 | 8 | #include "exec_cmd.h" |
ae4efe19 | 9 | #include "run-command.h" |
97cc7bc4 | 10 | #include "pkt-line.h" |
05c1eb10 | 11 | #include "string-list.h" |
de1a2fdd | 12 | #include "sideband.h" |
222b1212 | 13 | #include "argv-array.h" |
2501aff8 | 14 | #include "credential.h" |
16094885 | 15 | #include "sha1-array.h" |
30261094 | 16 | #include "send-pack.h" |
ad6ac124 | 17 | #include "protocol.h" |
a2d725b7 | 18 | |
37a8768f | 19 | static struct remote *remote; |
b227bbc4 JK |
20 | /* always ends with a trailing slash */ |
21 | static struct strbuf url = STRBUF_INIT; | |
37a8768f | 22 | |
ef08ef9e SP |
23 | struct options { |
24 | int verbosity; | |
25 | unsigned long depth; | |
508ea882 | 26 | char *deepen_since; |
a45a2600 | 27 | struct string_list deepen_not; |
511155db | 28 | struct string_list push_options; |
ef08ef9e | 29 | unsigned progress : 1, |
9ba38048 | 30 | check_self_contained_and_connected : 1, |
16094885 NTND |
31 | cloning : 1, |
32 | update_shallow : 1, | |
ae4efe19 | 33 | followtags : 1, |
de1a2fdd | 34 | dry_run : 1, |
0ea47f9d | 35 | thin : 1, |
30261094 | 36 | /* One of the SEND_PACK_PUSH_CERT_* constants. */ |
cccf74e2 NTND |
37 | push_cert : 2, |
38 | deepen_relative : 1; | |
ef08ef9e SP |
39 | }; |
40 | static struct options options; | |
05c1eb10 | 41 | static struct string_list cas_options = STRING_LIST_INIT_DUP; |
ef08ef9e | 42 | |
ef08ef9e SP |
43 | static int set_option(const char *name, const char *value) |
44 | { | |
45 | if (!strcmp(name, "verbosity")) { | |
46 | char *end; | |
47 | int v = strtol(value, &end, 10); | |
48 | if (value == end || *end) | |
49 | return -1; | |
50 | options.verbosity = v; | |
51 | return 0; | |
52 | } | |
53 | else if (!strcmp(name, "progress")) { | |
54 | if (!strcmp(value, "true")) | |
55 | options.progress = 1; | |
56 | else if (!strcmp(value, "false")) | |
57 | options.progress = 0; | |
58 | else | |
59 | return -1; | |
249b2004 | 60 | return 0; |
ef08ef9e SP |
61 | } |
62 | else if (!strcmp(name, "depth")) { | |
63 | char *end; | |
64 | unsigned long v = strtoul(value, &end, 10); | |
65 | if (value == end || *end) | |
66 | return -1; | |
67 | options.depth = v; | |
249b2004 | 68 | return 0; |
ef08ef9e | 69 | } |
508ea882 NTND |
70 | else if (!strcmp(name, "deepen-since")) { |
71 | options.deepen_since = xstrdup(value); | |
72 | return 0; | |
73 | } | |
a45a2600 NTND |
74 | else if (!strcmp(name, "deepen-not")) { |
75 | string_list_append(&options.deepen_not, value); | |
76 | return 0; | |
77 | } | |
cccf74e2 NTND |
78 | else if (!strcmp(name, "deepen-relative")) { |
79 | if (!strcmp(value, "true")) | |
80 | options.deepen_relative = 1; | |
81 | else if (!strcmp(value, "false")) | |
82 | options.deepen_relative = 0; | |
83 | else | |
84 | return -1; | |
85 | return 0; | |
86 | } | |
ef08ef9e SP |
87 | else if (!strcmp(name, "followtags")) { |
88 | if (!strcmp(value, "true")) | |
89 | options.followtags = 1; | |
90 | else if (!strcmp(value, "false")) | |
91 | options.followtags = 0; | |
92 | else | |
93 | return -1; | |
249b2004 | 94 | return 0; |
ef08ef9e | 95 | } |
ae4efe19 SP |
96 | else if (!strcmp(name, "dry-run")) { |
97 | if (!strcmp(value, "true")) | |
98 | options.dry_run = 1; | |
99 | else if (!strcmp(value, "false")) | |
100 | options.dry_run = 0; | |
101 | else | |
102 | return -1; | |
103 | return 0; | |
104 | } | |
9ba38048 NTND |
105 | else if (!strcmp(name, "check-connectivity")) { |
106 | if (!strcmp(value, "true")) | |
107 | options.check_self_contained_and_connected = 1; | |
108 | else if (!strcmp(value, "false")) | |
109 | options.check_self_contained_and_connected = 0; | |
110 | else | |
111 | return -1; | |
112 | return 0; | |
113 | } | |
05c1eb10 JH |
114 | else if (!strcmp(name, "cas")) { |
115 | struct strbuf val = STRBUF_INIT; | |
116 | strbuf_addf(&val, "--" CAS_OPT_NAME "=%s", value); | |
117 | string_list_append(&cas_options, val.buf); | |
118 | strbuf_release(&val); | |
119 | return 0; | |
16094885 NTND |
120 | } else if (!strcmp(name, "cloning")) { |
121 | if (!strcmp(value, "true")) | |
122 | options.cloning = 1; | |
123 | else if (!strcmp(value, "false")) | |
124 | options.cloning = 0; | |
125 | else | |
126 | return -1; | |
127 | return 0; | |
128 | } else if (!strcmp(name, "update-shallow")) { | |
129 | if (!strcmp(value, "true")) | |
130 | options.update_shallow = 1; | |
131 | else if (!strcmp(value, "false")) | |
132 | options.update_shallow = 0; | |
133 | else | |
134 | return -1; | |
135 | return 0; | |
0ea47f9d JH |
136 | } else if (!strcmp(name, "pushcert")) { |
137 | if (!strcmp(value, "true")) | |
30261094 | 138 | options.push_cert = SEND_PACK_PUSH_CERT_ALWAYS; |
0ea47f9d | 139 | else if (!strcmp(value, "false")) |
30261094 DB |
140 | options.push_cert = SEND_PACK_PUSH_CERT_NEVER; |
141 | else if (!strcmp(value, "if-asked")) | |
142 | options.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED; | |
0ea47f9d JH |
143 | else |
144 | return -1; | |
145 | return 0; | |
511155db BW |
146 | } else if (!strcmp(name, "push-option")) { |
147 | string_list_append(&options.push_options, value); | |
148 | return 0; | |
c915f11e EW |
149 | |
150 | #if LIBCURL_VERSION_NUM >= 0x070a08 | |
151 | } else if (!strcmp(name, "family")) { | |
152 | if (!strcmp(value, "ipv4")) | |
153 | git_curl_ipresolve = CURL_IPRESOLVE_V4; | |
154 | else if (!strcmp(value, "ipv6")) | |
155 | git_curl_ipresolve = CURL_IPRESOLVE_V6; | |
156 | else if (!strcmp(value, "all")) | |
157 | git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER; | |
158 | else | |
159 | return -1; | |
160 | return 0; | |
161 | #endif /* LIBCURL_VERSION_NUM >= 0x070a08 */ | |
16094885 | 162 | } else { |
ef08ef9e SP |
163 | return 1 /* unsupported */; |
164 | } | |
165 | } | |
166 | ||
97cc7bc4 | 167 | struct discovery { |
f08a5d42 | 168 | char *service; |
97cc7bc4 SP |
169 | char *buf_alloc; |
170 | char *buf; | |
171 | size_t len; | |
2a455202 | 172 | struct ref *refs; |
910650d2 | 173 | struct oid_array shallow; |
49e85e95 | 174 | enum protocol_version version; |
97cc7bc4 SP |
175 | unsigned proto_git : 1; |
176 | }; | |
177 | static struct discovery *last_discovery; | |
178 | ||
b8054bbe JK |
179 | static struct ref *parse_git_refs(struct discovery *heads, int for_push) |
180 | { | |
181 | struct ref *list = NULL; | |
ad6ac124 BW |
182 | struct packet_reader reader; |
183 | ||
184 | packet_reader_init(&reader, -1, heads->buf, heads->len, | |
185 | PACKET_READ_CHOMP_NEWLINE | | |
186 | PACKET_READ_GENTLE_ON_EOF); | |
187 | ||
49e85e95 BW |
188 | heads->version = discover_version(&reader); |
189 | switch (heads->version) { | |
8f6982b4 | 190 | case protocol_v2: |
0f1dc53f BW |
191 | /* |
192 | * Do nothing. This isn't a list of refs but rather a | |
193 | * capability advertisement. Client would have run | |
194 | * 'stateless-connect' so we'll dump this capability listing | |
195 | * and let them request the refs themselves. | |
196 | */ | |
8f6982b4 | 197 | break; |
ad6ac124 BW |
198 | case protocol_v1: |
199 | case protocol_v0: | |
200 | get_remote_heads(&reader, &list, for_push ? REF_NORMAL : 0, | |
201 | NULL, &heads->shallow); | |
202 | break; | |
203 | case protocol_unknown_version: | |
204 | BUG("unknown protocol version"); | |
205 | } | |
206 | ||
b8054bbe JK |
207 | return list; |
208 | } | |
209 | ||
210 | static struct ref *parse_info_refs(struct discovery *heads) | |
211 | { | |
212 | char *data, *start, *mid; | |
213 | char *ref_name; | |
214 | int i = 0; | |
215 | ||
216 | struct ref *refs = NULL; | |
217 | struct ref *ref = NULL; | |
218 | struct ref *last_ref = NULL; | |
219 | ||
220 | data = heads->buf; | |
221 | start = NULL; | |
222 | mid = data; | |
223 | while (i < heads->len) { | |
224 | if (!start) { | |
225 | start = &data[i]; | |
226 | } | |
227 | if (data[i] == '\t') | |
228 | mid = &data[i]; | |
229 | if (data[i] == '\n') { | |
230 | if (mid - start != 40) | |
b227bbc4 JK |
231 | die("%sinfo/refs not valid: is this a git repository?", |
232 | url.buf); | |
b8054bbe JK |
233 | data[i] = 0; |
234 | ref_name = mid + 1; | |
6f687c21 | 235 | ref = alloc_ref(ref_name); |
f4e54d02 | 236 | get_oid_hex(start, &ref->old_oid); |
b8054bbe JK |
237 | if (!refs) |
238 | refs = ref; | |
239 | if (last_ref) | |
240 | last_ref->next = ref; | |
241 | last_ref = ref; | |
242 | start = NULL; | |
243 | } | |
244 | i++; | |
245 | } | |
246 | ||
247 | ref = alloc_ref("HEAD"); | |
b227bbc4 | 248 | if (!http_fetch_ref(url.buf, ref) && |
b8054bbe JK |
249 | !resolve_remote_symref(ref, refs)) { |
250 | ref->next = refs; | |
251 | refs = ref; | |
252 | } else { | |
253 | free(ref); | |
254 | } | |
255 | ||
256 | return refs; | |
257 | } | |
258 | ||
97cc7bc4 SP |
259 | static void free_discovery(struct discovery *d) |
260 | { | |
261 | if (d) { | |
262 | if (d == last_discovery) | |
263 | last_discovery = NULL; | |
ee3051bd | 264 | free(d->shallow.oid); |
97cc7bc4 | 265 | free(d->buf_alloc); |
2a455202 | 266 | free_refs(d->refs); |
f08a5d42 | 267 | free(d->service); |
97cc7bc4 SP |
268 | free(d); |
269 | } | |
270 | } | |
271 | ||
fc1b774c JK |
272 | static int show_http_message(struct strbuf *type, struct strbuf *charset, |
273 | struct strbuf *msg) | |
426e70d4 JK |
274 | { |
275 | const char *p, *eol; | |
276 | ||
277 | /* | |
278 | * We only show text/plain parts, as other types are likely | |
279 | * to be ugly to look at on the user's terminal. | |
426e70d4 | 280 | */ |
bf197fd7 | 281 | if (strcmp(type->buf, "text/plain")) |
426e70d4 | 282 | return -1; |
fc1b774c JK |
283 | if (charset->len) |
284 | strbuf_reencode(msg, charset->buf, get_log_output_encoding()); | |
426e70d4 JK |
285 | |
286 | strbuf_trim(msg); | |
287 | if (!msg->len) | |
288 | return -1; | |
289 | ||
290 | p = msg->buf; | |
291 | do { | |
292 | eol = strchrnul(p, '\n'); | |
293 | fprintf(stderr, "remote: %.*s\n", (int)(eol - p), p); | |
294 | p = eol + 1; | |
295 | } while(*eol); | |
296 | return 0; | |
297 | } | |
298 | ||
884e586f BW |
299 | static int get_protocol_http_header(enum protocol_version version, |
300 | struct strbuf *header) | |
301 | { | |
302 | if (version > 0) { | |
303 | strbuf_addf(header, GIT_PROTOCOL_HEADER ": version=%d", | |
304 | version); | |
305 | ||
306 | return 1; | |
307 | } | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
24d36f14 | 312 | static struct discovery *discover_refs(const char *service, int for_push) |
a2d725b7 | 313 | { |
4656bf47 SP |
314 | struct strbuf exp = STRBUF_INIT; |
315 | struct strbuf type = STRBUF_INIT; | |
fc1b774c | 316 | struct strbuf charset = STRBUF_INIT; |
a2d725b7 | 317 | struct strbuf buffer = STRBUF_INIT; |
c65d5692 | 318 | struct strbuf refs_url = STRBUF_INIT; |
050ef365 | 319 | struct strbuf effective_url = STRBUF_INIT; |
884e586f BW |
320 | struct strbuf protocol_header = STRBUF_INIT; |
321 | struct string_list extra_headers = STRING_LIST_INIT_DUP; | |
97cc7bc4 | 322 | struct discovery *last = last_discovery; |
243c329c | 323 | int http_ret, maybe_smart = 0; |
fcaa6e64 | 324 | struct http_get_options http_options; |
a2d725b7 | 325 | |
97cc7bc4 SP |
326 | if (last && !strcmp(service, last->service)) |
327 | return last; | |
328 | free_discovery(last); | |
a2d725b7 | 329 | |
b227bbc4 | 330 | strbuf_addf(&refs_url, "%sinfo/refs", url.buf); |
59556548 | 331 | if ((starts_with(url.buf, "http://") || starts_with(url.buf, "https://")) && |
02572c2e | 332 | git_env_bool("GIT_SMART_HTTP", 1)) { |
243c329c | 333 | maybe_smart = 1; |
b227bbc4 | 334 | if (!strchr(url.buf, '?')) |
c65d5692 | 335 | strbuf_addch(&refs_url, '?'); |
97cc7bc4 | 336 | else |
c65d5692 JK |
337 | strbuf_addch(&refs_url, '&'); |
338 | strbuf_addf(&refs_url, "service=%s", service); | |
97cc7bc4 | 339 | } |
a2d725b7 | 340 | |
884e586f BW |
341 | /* Add the extra Git-Protocol header */ |
342 | if (get_protocol_http_header(get_protocol_version_config(), &protocol_header)) | |
343 | string_list_append(&extra_headers, protocol_header.buf); | |
344 | ||
fcaa6e64 JK |
345 | memset(&http_options, 0, sizeof(http_options)); |
346 | http_options.content_type = &type; | |
347 | http_options.charset = &charset; | |
348 | http_options.effective_url = &effective_url; | |
349 | http_options.base_url = &url; | |
884e586f | 350 | http_options.extra_headers = &extra_headers; |
50d34137 | 351 | http_options.initial_request = 1; |
fcaa6e64 JK |
352 | http_options.no_cache = 1; |
353 | http_options.keep_error = 1; | |
1bbcc224 | 354 | |
fcaa6e64 | 355 | http_ret = http_get_strbuf(refs_url.buf, &buffer, &http_options); |
a2d725b7 DB |
356 | switch (http_ret) { |
357 | case HTTP_OK: | |
358 | break; | |
359 | case HTTP_MISSING_TARGET: | |
fc1b774c | 360 | show_http_message(&type, &charset, &buffer); |
b227bbc4 | 361 | die("repository '%s' not found", url.buf); |
42653c09 | 362 | case HTTP_NOAUTH: |
fc1b774c | 363 | show_http_message(&type, &charset, &buffer); |
b227bbc4 | 364 | die("Authentication failed for '%s'", url.buf); |
a2d725b7 | 365 | default: |
fc1b774c | 366 | show_http_message(&type, &charset, &buffer); |
b227bbc4 | 367 | die("unable to access '%s': %s", url.buf, curl_errorstr); |
a2d725b7 DB |
368 | } |
369 | ||
50d34137 JK |
370 | if (options.verbosity && !starts_with(refs_url.buf, url.buf)) |
371 | warning(_("redirecting to %s"), url.buf); | |
372 | ||
97cc7bc4 | 373 | last= xcalloc(1, sizeof(*last_discovery)); |
f08a5d42 | 374 | last->service = xstrdup(service); |
97cc7bc4 SP |
375 | last->buf_alloc = strbuf_detach(&buffer, &last->len); |
376 | last->buf = last->buf_alloc; | |
377 | ||
4656bf47 SP |
378 | strbuf_addf(&exp, "application/x-%s-advertisement", service); |
379 | if (maybe_smart && | |
380 | (5 <= last->len && last->buf[4] == '#') && | |
381 | !strbuf_cmp(&exp, &type)) { | |
4981fe75 JK |
382 | char *line; |
383 | ||
4656bf47 SP |
384 | /* |
385 | * smart HTTP response; validate that the service | |
97cc7bc4 SP |
386 | * pkt-line matches our request. |
387 | */ | |
4981fe75 | 388 | line = packet_read_line_buf(&last->buf, &last->len, NULL); |
97cc7bc4 | 389 | |
4656bf47 | 390 | strbuf_reset(&exp); |
97cc7bc4 | 391 | strbuf_addf(&exp, "# service=%s", service); |
4981fe75 JK |
392 | if (strcmp(line, exp.buf)) |
393 | die("invalid server response; got '%s'", line); | |
97cc7bc4 SP |
394 | strbuf_release(&exp); |
395 | ||
396 | /* The header can include additional metadata lines, up | |
397 | * until a packet flush marker. Ignore these now, but | |
398 | * in the future we might start to scan them. | |
399 | */ | |
4981fe75 JK |
400 | while (packet_read_line_buf(&last->buf, &last->len, NULL)) |
401 | ; | |
97cc7bc4 SP |
402 | |
403 | last->proto_git = 1; | |
237ffedd BW |
404 | } else if (maybe_smart && |
405 | last->len > 5 && starts_with(last->buf + 4, "version 2")) { | |
406 | last->proto_git = 1; | |
97cc7bc4 SP |
407 | } |
408 | ||
2a455202 JK |
409 | if (last->proto_git) |
410 | last->refs = parse_git_refs(last, for_push); | |
411 | else | |
412 | last->refs = parse_info_refs(last); | |
413 | ||
c65d5692 | 414 | strbuf_release(&refs_url); |
4656bf47 SP |
415 | strbuf_release(&exp); |
416 | strbuf_release(&type); | |
fc1b774c | 417 | strbuf_release(&charset); |
050ef365 | 418 | strbuf_release(&effective_url); |
97cc7bc4 | 419 | strbuf_release(&buffer); |
884e586f BW |
420 | strbuf_release(&protocol_header); |
421 | string_list_clear(&extra_headers, 0); | |
97cc7bc4 SP |
422 | last_discovery = last; |
423 | return last; | |
424 | } | |
425 | ||
97cc7bc4 SP |
426 | static struct ref *get_refs(int for_push) |
427 | { | |
428 | struct discovery *heads; | |
429 | ||
430 | if (for_push) | |
2a455202 | 431 | heads = discover_refs("git-receive-pack", for_push); |
97cc7bc4 | 432 | else |
2a455202 | 433 | heads = discover_refs("git-upload-pack", for_push); |
97cc7bc4 | 434 | |
2a455202 | 435 | return heads->refs; |
97cc7bc4 SP |
436 | } |
437 | ||
ae4efe19 SP |
438 | static void output_refs(struct ref *refs) |
439 | { | |
440 | struct ref *posn; | |
441 | for (posn = refs; posn; posn = posn->next) { | |
442 | if (posn->symref) | |
443 | printf("@%s %s\n", posn->symref, posn->name); | |
444 | else | |
f4e54d02 | 445 | printf("%s %s\n", oid_to_hex(&posn->old_oid), posn->name); |
ae4efe19 SP |
446 | } |
447 | printf("\n"); | |
448 | fflush(stdout); | |
ae4efe19 SP |
449 | } |
450 | ||
de1a2fdd SP |
451 | struct rpc_state { |
452 | const char *service_name; | |
453 | const char **argv; | |
8150749d | 454 | struct strbuf *stdin_preamble; |
de1a2fdd SP |
455 | char *service_url; |
456 | char *hdr_content_type; | |
457 | char *hdr_accept; | |
884e586f | 458 | char *protocol_header; |
de1a2fdd SP |
459 | char *buf; |
460 | size_t alloc; | |
461 | size_t len; | |
462 | size_t pos; | |
463 | int in; | |
464 | int out; | |
296b847c | 465 | int any_written; |
de1a2fdd | 466 | struct strbuf result; |
b8538603 | 467 | unsigned gzip_request : 1; |
6c81a990 | 468 | unsigned initial_buffer : 1; |
de1a2fdd SP |
469 | }; |
470 | ||
471 | static size_t rpc_out(void *ptr, size_t eltsize, | |
472 | size_t nmemb, void *buffer_) | |
473 | { | |
474 | size_t max = eltsize * nmemb; | |
475 | struct rpc_state *rpc = buffer_; | |
476 | size_t avail = rpc->len - rpc->pos; | |
477 | ||
478 | if (!avail) { | |
6c81a990 | 479 | rpc->initial_buffer = 0; |
4981fe75 | 480 | avail = packet_read(rpc->out, NULL, NULL, rpc->buf, rpc->alloc, 0); |
de1a2fdd SP |
481 | if (!avail) |
482 | return 0; | |
483 | rpc->pos = 0; | |
484 | rpc->len = avail; | |
485 | } | |
486 | ||
48310608 | 487 | if (max < avail) |
de1a2fdd SP |
488 | avail = max; |
489 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
490 | rpc->pos += avail; | |
491 | return avail; | |
492 | } | |
493 | ||
6c81a990 | 494 | #ifndef NO_CURL_IOCTL |
5092d3ec | 495 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
496 | { |
497 | struct rpc_state *rpc = clientp; | |
498 | ||
499 | switch (cmd) { | |
500 | case CURLIOCMD_NOP: | |
501 | return CURLIOE_OK; | |
502 | ||
503 | case CURLIOCMD_RESTARTREAD: | |
504 | if (rpc->initial_buffer) { | |
505 | rpc->pos = 0; | |
506 | return CURLIOE_OK; | |
507 | } | |
b725b270 | 508 | error("unable to rewind rpc post data - try increasing http.postBuffer"); |
6c81a990 MS |
509 | return CURLIOE_FAILRESTART; |
510 | ||
511 | default: | |
512 | return CURLIOE_UNKNOWNCMD; | |
513 | } | |
514 | } | |
515 | #endif | |
516 | ||
a04ff3ec | 517 | static size_t rpc_in(char *ptr, size_t eltsize, |
de1a2fdd SP |
518 | size_t nmemb, void *buffer_) |
519 | { | |
520 | size_t size = eltsize * nmemb; | |
521 | struct rpc_state *rpc = buffer_; | |
296b847c DT |
522 | if (size) |
523 | rpc->any_written = 1; | |
de1a2fdd SP |
524 | write_or_die(rpc->in, ptr, size); |
525 | return size; | |
526 | } | |
527 | ||
3a347ed7 JK |
528 | static int run_slot(struct active_request_slot *slot, |
529 | struct slot_results *results) | |
206b099d | 530 | { |
b81401c1 | 531 | int err; |
3a347ed7 | 532 | struct slot_results results_buf; |
206b099d | 533 | |
3a347ed7 JK |
534 | if (!results) |
535 | results = &results_buf; | |
536 | ||
beed336c | 537 | err = run_one_slot(slot, results); |
206b099d | 538 | |
b81401c1 | 539 | if (err != HTTP_OK && err != HTTP_REAUTH) { |
00540458 SP |
540 | struct strbuf msg = STRBUF_INIT; |
541 | if (results->http_code && results->http_code != 200) | |
542 | strbuf_addf(&msg, "HTTP %ld", results->http_code); | |
543 | if (results->curl_result != CURLE_OK) { | |
544 | if (msg.len) | |
545 | strbuf_addch(&msg, ' '); | |
546 | strbuf_addf(&msg, "curl %d", results->curl_result); | |
547 | if (curl_errorstr[0]) { | |
548 | strbuf_addch(&msg, ' '); | |
549 | strbuf_addstr(&msg, curl_errorstr); | |
550 | } | |
551 | } | |
552 | error("RPC failed; %s", msg.buf); | |
553 | strbuf_release(&msg); | |
206b099d SP |
554 | } |
555 | ||
556 | return err; | |
557 | } | |
558 | ||
3a347ed7 | 559 | static int probe_rpc(struct rpc_state *rpc, struct slot_results *results) |
206b099d SP |
560 | { |
561 | struct active_request_slot *slot; | |
8cb01e2f | 562 | struct curl_slist *headers = http_copy_default_headers(); |
206b099d SP |
563 | struct strbuf buf = STRBUF_INIT; |
564 | int err; | |
565 | ||
566 | slot = get_active_slot(); | |
567 | ||
568 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
569 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
570 | ||
571 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
572 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
573 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); | |
aa90b969 | 574 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, NULL); |
206b099d SP |
575 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000"); |
576 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4); | |
577 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
578 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
579 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf); | |
580 | ||
3a347ed7 | 581 | err = run_slot(slot, results); |
206b099d SP |
582 | |
583 | curl_slist_free_all(headers); | |
584 | strbuf_release(&buf); | |
585 | return err; | |
586 | } | |
587 | ||
37ee680d DT |
588 | static curl_off_t xcurl_off_t(ssize_t len) { |
589 | if (len > maximum_signed_value_of_type(curl_off_t)) | |
590 | die("cannot handle pushes this big"); | |
591 | return (curl_off_t) len; | |
592 | } | |
593 | ||
de1a2fdd SP |
594 | static int post_rpc(struct rpc_state *rpc) |
595 | { | |
596 | struct active_request_slot *slot; | |
8cb01e2f | 597 | struct curl_slist *headers = http_copy_default_headers(); |
b8538603 SP |
598 | int use_gzip = rpc->gzip_request; |
599 | char *gzip_body = NULL; | |
37711549 | 600 | size_t gzip_size = 0; |
206b099d | 601 | int err, large_request = 0; |
c80d96ca | 602 | int needs_100_continue = 0; |
de1a2fdd SP |
603 | |
604 | /* Try to load the entire request, if we can fit it into the | |
605 | * allocated buffer space we can use HTTP/1.0 and avoid the | |
606 | * chunked encoding mess. | |
607 | */ | |
608 | while (1) { | |
609 | size_t left = rpc->alloc - rpc->len; | |
610 | char *buf = rpc->buf + rpc->len; | |
611 | int n; | |
612 | ||
613 | if (left < LARGE_PACKET_MAX) { | |
614 | large_request = 1; | |
b8538603 | 615 | use_gzip = 0; |
de1a2fdd SP |
616 | break; |
617 | } | |
618 | ||
4981fe75 | 619 | n = packet_read(rpc->out, NULL, NULL, buf, left, 0); |
de1a2fdd SP |
620 | if (!n) |
621 | break; | |
622 | rpc->len += n; | |
623 | } | |
624 | ||
206b099d | 625 | if (large_request) { |
c80d96ca | 626 | struct slot_results results; |
627 | ||
b81401c1 | 628 | do { |
c80d96ca | 629 | err = probe_rpc(rpc, &results); |
2501aff8 JK |
630 | if (err == HTTP_REAUTH) |
631 | credential_fill(&http_auth); | |
b81401c1 JK |
632 | } while (err == HTTP_REAUTH); |
633 | if (err != HTTP_OK) | |
634 | return -1; | |
c80d96ca | 635 | |
636 | if (results.auth_avail & CURLAUTH_GSSNEGOTIATE) | |
637 | needs_100_continue = 1; | |
206b099d SP |
638 | } |
639 | ||
abf8df86 JK |
640 | headers = curl_slist_append(headers, rpc->hdr_content_type); |
641 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
c80d96ca | 642 | headers = curl_slist_append(headers, needs_100_continue ? |
643 | "Expect: 100-continue" : "Expect:"); | |
abf8df86 | 644 | |
884e586f BW |
645 | /* Add the extra Git-Protocol header */ |
646 | if (rpc->protocol_header) | |
647 | headers = curl_slist_append(headers, rpc->protocol_header); | |
648 | ||
abf8df86 | 649 | retry: |
de1a2fdd | 650 | slot = get_active_slot(); |
de1a2fdd | 651 | |
de1a2fdd | 652 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
d21f9794 | 653 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); |
de1a2fdd | 654 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); |
aa90b969 | 655 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
de1a2fdd | 656 | |
de1a2fdd SP |
657 | if (large_request) { |
658 | /* The request body is large and the size cannot be predicted. | |
659 | * We must use chunked encoding to send it. | |
660 | */ | |
de1a2fdd | 661 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); |
6c81a990 | 662 | rpc->initial_buffer = 1; |
de1a2fdd SP |
663 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
664 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
665 | #ifndef NO_CURL_IOCTL |
666 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
667 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
668 | #endif | |
de1a2fdd SP |
669 | if (options.verbosity > 1) { |
670 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
671 | fflush(stderr); | |
672 | } | |
673 | ||
2e736fd5 JK |
674 | } else if (gzip_body) { |
675 | /* | |
676 | * If we are looping to retry authentication, then the previous | |
677 | * run will have set up the headers and gzip buffer already, | |
678 | * and we just need to send it. | |
679 | */ | |
680 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
37ee680d | 681 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE_LARGE, xcurl_off_t(gzip_size)); |
2e736fd5 | 682 | |
b8538603 SP |
683 | } else if (use_gzip && 1024 < rpc->len) { |
684 | /* The client backend isn't giving us compressed data so | |
685 | * we can try to deflate it ourselves, this may save on. | |
686 | * the transfer time. | |
687 | */ | |
ef49a7a0 | 688 | git_zstream stream; |
b8538603 SP |
689 | int ret; |
690 | ||
55bb5c91 | 691 | git_deflate_init_gzip(&stream, Z_BEST_COMPRESSION); |
df126e10 JK |
692 | gzip_size = git_deflate_bound(&stream, rpc->len); |
693 | gzip_body = xmalloc(gzip_size); | |
b8538603 SP |
694 | |
695 | stream.next_in = (unsigned char *)rpc->buf; | |
696 | stream.avail_in = rpc->len; | |
697 | stream.next_out = (unsigned char *)gzip_body; | |
df126e10 | 698 | stream.avail_out = gzip_size; |
b8538603 | 699 | |
55bb5c91 | 700 | ret = git_deflate(&stream, Z_FINISH); |
b8538603 SP |
701 | if (ret != Z_STREAM_END) |
702 | die("cannot deflate request; zlib deflate error %d", ret); | |
703 | ||
55bb5c91 | 704 | ret = git_deflate_end_gently(&stream); |
b8538603 SP |
705 | if (ret != Z_OK) |
706 | die("cannot deflate request; zlib end error %d", ret); | |
707 | ||
df126e10 | 708 | gzip_size = stream.total_out; |
b8538603 SP |
709 | |
710 | headers = curl_slist_append(headers, "Content-Encoding: gzip"); | |
711 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
37ee680d | 712 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE_LARGE, xcurl_off_t(gzip_size)); |
b8538603 SP |
713 | |
714 | if (options.verbosity > 1) { | |
715 | fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n", | |
716 | rpc->service_name, | |
df126e10 | 717 | (unsigned long)rpc->len, (unsigned long)gzip_size); |
b8538603 SP |
718 | fflush(stderr); |
719 | } | |
de1a2fdd SP |
720 | } else { |
721 | /* We know the complete request size in advance, use the | |
722 | * more normal Content-Length approach. | |
723 | */ | |
724 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf); | |
37ee680d | 725 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE_LARGE, xcurl_off_t(rpc->len)); |
de1a2fdd SP |
726 | if (options.verbosity > 1) { |
727 | fprintf(stderr, "POST %s (%lu bytes)\n", | |
728 | rpc->service_name, (unsigned long)rpc->len); | |
729 | fflush(stderr); | |
730 | } | |
731 | } | |
732 | ||
733 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
734 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in); | |
735 | curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc); | |
736 | ||
296b847c DT |
737 | |
738 | rpc->any_written = 0; | |
3a347ed7 | 739 | err = run_slot(slot, NULL); |
2501aff8 JK |
740 | if (err == HTTP_REAUTH && !large_request) { |
741 | credential_fill(&http_auth); | |
abf8df86 | 742 | goto retry; |
2501aff8 | 743 | } |
b81401c1 JK |
744 | if (err != HTTP_OK) |
745 | err = -1; | |
de1a2fdd | 746 | |
296b847c DT |
747 | if (!rpc->any_written) |
748 | err = -1; | |
749 | ||
de1a2fdd | 750 | curl_slist_free_all(headers); |
b8538603 | 751 | free(gzip_body); |
de1a2fdd SP |
752 | return err; |
753 | } | |
754 | ||
755 | static int rpc_service(struct rpc_state *rpc, struct discovery *heads) | |
756 | { | |
757 | const char *svc = rpc->service_name; | |
758 | struct strbuf buf = STRBUF_INIT; | |
8150749d | 759 | struct strbuf *preamble = rpc->stdin_preamble; |
d3180279 | 760 | struct child_process client = CHILD_PROCESS_INIT; |
de1a2fdd SP |
761 | int err = 0; |
762 | ||
de1a2fdd SP |
763 | client.in = -1; |
764 | client.out = -1; | |
765 | client.git_cmd = 1; | |
766 | client.argv = rpc->argv; | |
767 | if (start_command(&client)) | |
768 | exit(1); | |
8150749d IT |
769 | if (preamble) |
770 | write_or_die(client.in, preamble->buf, preamble->len); | |
de1a2fdd SP |
771 | if (heads) |
772 | write_or_die(client.in, heads->buf, heads->len); | |
773 | ||
774 | rpc->alloc = http_post_buffer; | |
775 | rpc->buf = xmalloc(rpc->alloc); | |
776 | rpc->in = client.in; | |
777 | rpc->out = client.out; | |
778 | strbuf_init(&rpc->result, 0); | |
779 | ||
b227bbc4 | 780 | strbuf_addf(&buf, "%s%s", url.buf, svc); |
de1a2fdd SP |
781 | rpc->service_url = strbuf_detach(&buf, NULL); |
782 | ||
783 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
784 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
785 | ||
8efa5f62 | 786 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
787 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
788 | ||
884e586f BW |
789 | if (get_protocol_http_header(heads->version, &buf)) |
790 | rpc->protocol_header = strbuf_detach(&buf, NULL); | |
791 | else | |
792 | rpc->protocol_header = NULL; | |
793 | ||
de1a2fdd | 794 | while (!err) { |
4981fe75 | 795 | int n = packet_read(rpc->out, NULL, NULL, rpc->buf, rpc->alloc, 0); |
de1a2fdd SP |
796 | if (!n) |
797 | break; | |
798 | rpc->pos = 0; | |
799 | rpc->len = n; | |
800 | err |= post_rpc(rpc); | |
801 | } | |
de1a2fdd SP |
802 | |
803 | close(client.in); | |
de1a2fdd | 804 | client.in = -1; |
6cdf0223 SP |
805 | if (!err) { |
806 | strbuf_read(&rpc->result, client.out, 0); | |
807 | } else { | |
808 | char buf[4096]; | |
809 | for (;;) | |
810 | if (xread(client.out, buf, sizeof(buf)) <= 0) | |
811 | break; | |
812 | } | |
b4ee10f6 SP |
813 | |
814 | close(client.out); | |
de1a2fdd SP |
815 | client.out = -1; |
816 | ||
817 | err |= finish_command(&client); | |
818 | free(rpc->service_url); | |
819 | free(rpc->hdr_content_type); | |
820 | free(rpc->hdr_accept); | |
884e586f | 821 | free(rpc->protocol_header); |
de1a2fdd SP |
822 | free(rpc->buf); |
823 | strbuf_release(&buf); | |
824 | return err; | |
825 | } | |
826 | ||
292ce46b SP |
827 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
828 | { | |
26e1e0b2 | 829 | struct walker *walker; |
b32fa95f | 830 | char **targets; |
292ce46b SP |
831 | int ret, i; |
832 | ||
b32fa95f | 833 | ALLOC_ARRAY(targets, nr_heads); |
508ea882 NTND |
834 | if (options.depth || options.deepen_since) |
835 | die("dumb http transport does not support shallow capabilities"); | |
292ce46b | 836 | for (i = 0; i < nr_heads; i++) |
f4e54d02 | 837 | targets[i] = xstrdup(oid_to_hex(&to_fetch[i]->old_oid)); |
292ce46b | 838 | |
b227bbc4 | 839 | walker = get_http_walker(url.buf); |
292ce46b SP |
840 | walker->get_all = 1; |
841 | walker->get_tree = 1; | |
842 | walker->get_history = 1; | |
ef08ef9e | 843 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
844 | walker->get_recover = 0; |
845 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
26e1e0b2 | 846 | walker_free(walker); |
292ce46b SP |
847 | |
848 | for (i = 0; i < nr_heads; i++) | |
849 | free(targets[i]); | |
850 | free(targets); | |
851 | ||
b725b270 | 852 | return ret ? error("fetch failed.") : 0; |
292ce46b SP |
853 | } |
854 | ||
249b2004 SP |
855 | static int fetch_git(struct discovery *heads, |
856 | int nr_heads, struct ref **to_fetch) | |
857 | { | |
858 | struct rpc_state rpc; | |
8150749d | 859 | struct strbuf preamble = STRBUF_INIT; |
b5f62ebe NTND |
860 | int i, err; |
861 | struct argv_array args = ARGV_ARRAY_INIT; | |
862 | ||
863 | argv_array_pushl(&args, "fetch-pack", "--stateless-rpc", | |
864 | "--stdin", "--lock-pack", NULL); | |
249b2004 | 865 | if (options.followtags) |
b5f62ebe | 866 | argv_array_push(&args, "--include-tag"); |
249b2004 | 867 | if (options.thin) |
b5f62ebe NTND |
868 | argv_array_push(&args, "--thin"); |
869 | if (options.verbosity >= 3) | |
870 | argv_array_pushl(&args, "-v", "-v", NULL); | |
9ba38048 | 871 | if (options.check_self_contained_and_connected) |
b5f62ebe | 872 | argv_array_push(&args, "--check-self-contained-and-connected"); |
16094885 | 873 | if (options.cloning) |
b5f62ebe | 874 | argv_array_push(&args, "--cloning"); |
16094885 | 875 | if (options.update_shallow) |
b5f62ebe | 876 | argv_array_push(&args, "--update-shallow"); |
249b2004 | 877 | if (!options.progress) |
b5f62ebe NTND |
878 | argv_array_push(&args, "--no-progress"); |
879 | if (options.depth) | |
880 | argv_array_pushf(&args, "--depth=%lu", options.depth); | |
508ea882 NTND |
881 | if (options.deepen_since) |
882 | argv_array_pushf(&args, "--shallow-since=%s", options.deepen_since); | |
a45a2600 NTND |
883 | for (i = 0; i < options.deepen_not.nr; i++) |
884 | argv_array_pushf(&args, "--shallow-exclude=%s", | |
885 | options.deepen_not.items[i].string); | |
cccf74e2 NTND |
886 | if (options.deepen_relative && options.depth) |
887 | argv_array_push(&args, "--deepen-relative"); | |
b5f62ebe | 888 | argv_array_push(&args, url.buf); |
8150749d | 889 | |
249b2004 SP |
890 | for (i = 0; i < nr_heads; i++) { |
891 | struct ref *ref = to_fetch[i]; | |
94ee8e2c | 892 | if (!*ref->name) |
249b2004 | 893 | die("cannot fetch by sha1 over smart http"); |
58f2ed05 | 894 | packet_buf_write(&preamble, "%s %s\n", |
f4e54d02 | 895 | oid_to_hex(&ref->old_oid), ref->name); |
249b2004 | 896 | } |
8150749d | 897 | packet_buf_flush(&preamble); |
249b2004 SP |
898 | |
899 | memset(&rpc, 0, sizeof(rpc)); | |
900 | rpc.service_name = "git-upload-pack", | |
b5f62ebe | 901 | rpc.argv = args.argv; |
8150749d | 902 | rpc.stdin_preamble = &preamble; |
b8538603 | 903 | rpc.gzip_request = 1; |
249b2004 SP |
904 | |
905 | err = rpc_service(&rpc, heads); | |
906 | if (rpc.result.len) | |
cdf4fb8e | 907 | write_or_die(1, rpc.result.buf, rpc.result.len); |
249b2004 | 908 | strbuf_release(&rpc.result); |
8150749d | 909 | strbuf_release(&preamble); |
b5f62ebe | 910 | argv_array_clear(&args); |
249b2004 SP |
911 | return err; |
912 | } | |
913 | ||
914 | static int fetch(int nr_heads, struct ref **to_fetch) | |
915 | { | |
2a455202 | 916 | struct discovery *d = discover_refs("git-upload-pack", 0); |
249b2004 SP |
917 | if (d->proto_git) |
918 | return fetch_git(d, nr_heads, to_fetch); | |
919 | else | |
920 | return fetch_dumb(nr_heads, to_fetch); | |
921 | } | |
922 | ||
292ce46b SP |
923 | static void parse_fetch(struct strbuf *buf) |
924 | { | |
925 | struct ref **to_fetch = NULL; | |
926 | struct ref *list_head = NULL; | |
927 | struct ref **list = &list_head; | |
928 | int alloc_heads = 0, nr_heads = 0; | |
929 | ||
930 | do { | |
95b567c7 JK |
931 | const char *p; |
932 | if (skip_prefix(buf->buf, "fetch ", &p)) { | |
933 | const char *name; | |
292ce46b | 934 | struct ref *ref; |
8338c911 | 935 | struct object_id old_oid; |
292ce46b | 936 | |
8338c911 | 937 | if (get_oid_hex(p, &old_oid)) |
292ce46b | 938 | die("protocol error: expected sha/ref, got %s'", p); |
8338c911 | 939 | if (p[GIT_SHA1_HEXSZ] == ' ') |
940 | name = p + GIT_SHA1_HEXSZ + 1; | |
941 | else if (!p[GIT_SHA1_HEXSZ]) | |
292ce46b SP |
942 | name = ""; |
943 | else | |
944 | die("protocol error: expected sha/ref, got %s'", p); | |
945 | ||
946 | ref = alloc_ref(name); | |
8338c911 | 947 | oidcpy(&ref->old_oid, &old_oid); |
292ce46b SP |
948 | |
949 | *list = ref; | |
950 | list = &ref->next; | |
951 | ||
952 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
953 | to_fetch[nr_heads++] = ref; | |
954 | } | |
955 | else | |
956 | die("http transport does not support %s", buf->buf); | |
957 | ||
958 | strbuf_reset(buf); | |
8f309aeb | 959 | if (strbuf_getline_lf(buf, stdin) == EOF) |
292ce46b SP |
960 | return; |
961 | if (!*buf->buf) | |
962 | break; | |
963 | } while (1); | |
964 | ||
249b2004 | 965 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
966 | exit(128); /* error already reported */ |
967 | free_refs(list_head); | |
968 | free(to_fetch); | |
969 | ||
970 | printf("\n"); | |
971 | fflush(stdout); | |
972 | strbuf_reset(buf); | |
973 | } | |
974 | ||
ae4efe19 SP |
975 | static int push_dav(int nr_spec, char **specs) |
976 | { | |
850d2fec JK |
977 | struct child_process child = CHILD_PROCESS_INIT; |
978 | size_t i; | |
ae4efe19 | 979 | |
850d2fec JK |
980 | child.git_cmd = 1; |
981 | argv_array_push(&child.args, "http-push"); | |
982 | argv_array_push(&child.args, "--helper-status"); | |
ae4efe19 | 983 | if (options.dry_run) |
850d2fec | 984 | argv_array_push(&child.args, "--dry-run"); |
ae4efe19 | 985 | if (options.verbosity > 1) |
850d2fec JK |
986 | argv_array_push(&child.args, "--verbose"); |
987 | argv_array_push(&child.args, url.buf); | |
ae4efe19 | 988 | for (i = 0; i < nr_spec; i++) |
850d2fec | 989 | argv_array_push(&child.args, specs[i]); |
ae4efe19 | 990 | |
850d2fec JK |
991 | if (run_command(&child)) |
992 | die("git-http-push failed"); | |
ae4efe19 SP |
993 | return 0; |
994 | } | |
995 | ||
de1a2fdd SP |
996 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
997 | { | |
998 | struct rpc_state rpc; | |
222b1212 JH |
999 | int i, err; |
1000 | struct argv_array args; | |
05c1eb10 | 1001 | struct string_list_item *cas_option; |
26be19ba | 1002 | struct strbuf preamble = STRBUF_INIT; |
222b1212 JH |
1003 | |
1004 | argv_array_init(&args); | |
1005 | argv_array_pushl(&args, "send-pack", "--stateless-rpc", "--helper-status", | |
1006 | NULL); | |
de1a2fdd | 1007 | |
de1a2fdd | 1008 | if (options.thin) |
222b1212 | 1009 | argv_array_push(&args, "--thin"); |
de1a2fdd | 1010 | if (options.dry_run) |
222b1212 | 1011 | argv_array_push(&args, "--dry-run"); |
30261094 DB |
1012 | if (options.push_cert == SEND_PACK_PUSH_CERT_ALWAYS) |
1013 | argv_array_push(&args, "--signed=yes"); | |
1014 | else if (options.push_cert == SEND_PACK_PUSH_CERT_IF_ASKED) | |
1015 | argv_array_push(&args, "--signed=if-asked"); | |
c207e34f | 1016 | if (options.verbosity == 0) |
222b1212 | 1017 | argv_array_push(&args, "--quiet"); |
c207e34f | 1018 | else if (options.verbosity > 1) |
222b1212 | 1019 | argv_array_push(&args, "--verbose"); |
511155db BW |
1020 | for (i = 0; i < options.push_options.nr; i++) |
1021 | argv_array_pushf(&args, "--push-option=%s", | |
1022 | options.push_options.items[i].string); | |
222b1212 | 1023 | argv_array_push(&args, options.progress ? "--progress" : "--no-progress"); |
05c1eb10 | 1024 | for_each_string_list_item(cas_option, &cas_options) |
2233ad45 | 1025 | argv_array_push(&args, cas_option->string); |
b227bbc4 | 1026 | argv_array_push(&args, url.buf); |
26be19ba JK |
1027 | |
1028 | argv_array_push(&args, "--stdin"); | |
de1a2fdd | 1029 | for (i = 0; i < nr_spec; i++) |
26be19ba JK |
1030 | packet_buf_write(&preamble, "%s\n", specs[i]); |
1031 | packet_buf_flush(&preamble); | |
de1a2fdd SP |
1032 | |
1033 | memset(&rpc, 0, sizeof(rpc)); | |
1034 | rpc.service_name = "git-receive-pack", | |
222b1212 | 1035 | rpc.argv = args.argv; |
26be19ba | 1036 | rpc.stdin_preamble = &preamble; |
de1a2fdd SP |
1037 | |
1038 | err = rpc_service(&rpc, heads); | |
1039 | if (rpc.result.len) | |
cdf4fb8e | 1040 | write_or_die(1, rpc.result.buf, rpc.result.len); |
de1a2fdd | 1041 | strbuf_release(&rpc.result); |
26be19ba | 1042 | strbuf_release(&preamble); |
222b1212 | 1043 | argv_array_clear(&args); |
de1a2fdd SP |
1044 | return err; |
1045 | } | |
1046 | ||
1047 | static int push(int nr_spec, char **specs) | |
1048 | { | |
2a455202 | 1049 | struct discovery *heads = discover_refs("git-receive-pack", 1); |
de1a2fdd SP |
1050 | int ret; |
1051 | ||
1052 | if (heads->proto_git) | |
1053 | ret = push_git(heads, nr_spec, specs); | |
1054 | else | |
1055 | ret = push_dav(nr_spec, specs); | |
1056 | free_discovery(heads); | |
1057 | return ret; | |
1058 | } | |
1059 | ||
ae4efe19 SP |
1060 | static void parse_push(struct strbuf *buf) |
1061 | { | |
1062 | char **specs = NULL; | |
5238cbf6 | 1063 | int alloc_spec = 0, nr_spec = 0, i, ret; |
ae4efe19 SP |
1064 | |
1065 | do { | |
59556548 | 1066 | if (starts_with(buf->buf, "push ")) { |
ae4efe19 SP |
1067 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); |
1068 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
1069 | } | |
1070 | else | |
1071 | die("http transport does not support %s", buf->buf); | |
1072 | ||
1073 | strbuf_reset(buf); | |
8f309aeb | 1074 | if (strbuf_getline_lf(buf, stdin) == EOF) |
dc4cd767 | 1075 | goto free_specs; |
ae4efe19 SP |
1076 | if (!*buf->buf) |
1077 | break; | |
1078 | } while (1); | |
1079 | ||
5238cbf6 | 1080 | ret = push(nr_spec, specs); |
ae4efe19 SP |
1081 | printf("\n"); |
1082 | fflush(stdout); | |
dc4cd767 | 1083 | |
5238cbf6 SP |
1084 | if (ret) |
1085 | exit(128); /* error already reported */ | |
1086 | ||
dc4cd767 JM |
1087 | free_specs: |
1088 | for (i = 0; i < nr_spec; i++) | |
1089 | free(specs[i]); | |
1090 | free(specs); | |
ae4efe19 SP |
1091 | } |
1092 | ||
0f1dc53f BW |
1093 | /* |
1094 | * Used to represent the state of a connection to an HTTP server when | |
1095 | * communicating using git's wire-protocol version 2. | |
1096 | */ | |
1097 | struct proxy_state { | |
1098 | char *service_name; | |
1099 | char *service_url; | |
1100 | struct curl_slist *headers; | |
1101 | struct strbuf request_buffer; | |
1102 | int in; | |
1103 | int out; | |
1104 | struct packet_reader reader; | |
1105 | size_t pos; | |
1106 | int seen_flush; | |
1107 | }; | |
1108 | ||
1109 | static void proxy_state_init(struct proxy_state *p, const char *service_name, | |
1110 | enum protocol_version version) | |
1111 | { | |
1112 | struct strbuf buf = STRBUF_INIT; | |
1113 | ||
1114 | memset(p, 0, sizeof(*p)); | |
1115 | p->service_name = xstrdup(service_name); | |
1116 | ||
1117 | p->in = 0; | |
1118 | p->out = 1; | |
1119 | strbuf_init(&p->request_buffer, 0); | |
1120 | ||
1121 | strbuf_addf(&buf, "%s%s", url.buf, p->service_name); | |
1122 | p->service_url = strbuf_detach(&buf, NULL); | |
1123 | ||
1124 | p->headers = http_copy_default_headers(); | |
1125 | ||
1126 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", p->service_name); | |
1127 | p->headers = curl_slist_append(p->headers, buf.buf); | |
1128 | strbuf_reset(&buf); | |
1129 | ||
1130 | strbuf_addf(&buf, "Accept: application/x-%s-result", p->service_name); | |
1131 | p->headers = curl_slist_append(p->headers, buf.buf); | |
1132 | strbuf_reset(&buf); | |
1133 | ||
1134 | p->headers = curl_slist_append(p->headers, "Transfer-Encoding: chunked"); | |
1135 | ||
1136 | /* Add the Git-Protocol header */ | |
1137 | if (get_protocol_http_header(version, &buf)) | |
1138 | p->headers = curl_slist_append(p->headers, buf.buf); | |
1139 | ||
1140 | packet_reader_init(&p->reader, p->in, NULL, 0, | |
1141 | PACKET_READ_GENTLE_ON_EOF); | |
1142 | ||
1143 | strbuf_release(&buf); | |
1144 | } | |
1145 | ||
1146 | static void proxy_state_clear(struct proxy_state *p) | |
1147 | { | |
1148 | free(p->service_name); | |
1149 | free(p->service_url); | |
1150 | curl_slist_free_all(p->headers); | |
1151 | strbuf_release(&p->request_buffer); | |
1152 | } | |
1153 | ||
1154 | /* | |
1155 | * CURLOPT_READFUNCTION callback function. | |
1156 | * Attempts to copy over a single packet-line at a time into the | |
1157 | * curl provided buffer. | |
1158 | */ | |
1159 | static size_t proxy_in(char *buffer, size_t eltsize, | |
1160 | size_t nmemb, void *userdata) | |
1161 | { | |
1162 | size_t max; | |
1163 | struct proxy_state *p = userdata; | |
1164 | size_t avail = p->request_buffer.len - p->pos; | |
1165 | ||
1166 | ||
1167 | if (eltsize != 1) | |
1168 | BUG("curl read callback called with size = %"PRIuMAX" != 1", | |
1169 | (uintmax_t)eltsize); | |
1170 | max = nmemb; | |
1171 | ||
1172 | if (!avail) { | |
1173 | if (p->seen_flush) { | |
1174 | p->seen_flush = 0; | |
1175 | return 0; | |
1176 | } | |
1177 | ||
1178 | strbuf_reset(&p->request_buffer); | |
1179 | switch (packet_reader_read(&p->reader)) { | |
1180 | case PACKET_READ_EOF: | |
1181 | die("unexpected EOF when reading from parent process"); | |
1182 | case PACKET_READ_NORMAL: | |
1183 | packet_buf_write_len(&p->request_buffer, p->reader.line, | |
1184 | p->reader.pktlen); | |
1185 | break; | |
1186 | case PACKET_READ_DELIM: | |
1187 | packet_buf_delim(&p->request_buffer); | |
1188 | break; | |
1189 | case PACKET_READ_FLUSH: | |
1190 | packet_buf_flush(&p->request_buffer); | |
1191 | p->seen_flush = 1; | |
1192 | break; | |
1193 | } | |
1194 | p->pos = 0; | |
1195 | avail = p->request_buffer.len; | |
1196 | } | |
1197 | ||
1198 | if (max < avail) | |
1199 | avail = max; | |
1200 | memcpy(buffer, p->request_buffer.buf + p->pos, avail); | |
1201 | p->pos += avail; | |
1202 | return avail; | |
1203 | } | |
1204 | ||
1205 | static size_t proxy_out(char *buffer, size_t eltsize, | |
1206 | size_t nmemb, void *userdata) | |
1207 | { | |
1208 | size_t size; | |
1209 | struct proxy_state *p = userdata; | |
1210 | ||
1211 | if (eltsize != 1) | |
1212 | BUG("curl read callback called with size = %"PRIuMAX" != 1", | |
1213 | (uintmax_t)eltsize); | |
1214 | size = nmemb; | |
1215 | ||
1216 | write_or_die(p->out, buffer, size); | |
1217 | return size; | |
1218 | } | |
1219 | ||
1220 | /* Issues a request to the HTTP server configured in `p` */ | |
1221 | static int proxy_request(struct proxy_state *p) | |
1222 | { | |
1223 | struct active_request_slot *slot; | |
1224 | ||
1225 | slot = get_active_slot(); | |
1226 | ||
1227 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
1228 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
1229 | curl_easy_setopt(slot->curl, CURLOPT_URL, p->service_url); | |
1230 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, p->headers); | |
1231 | ||
1232 | /* Setup function to read request from client */ | |
1233 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, proxy_in); | |
1234 | curl_easy_setopt(slot->curl, CURLOPT_READDATA, p); | |
1235 | ||
1236 | /* Setup function to write server response to client */ | |
1237 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, proxy_out); | |
1238 | curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, p); | |
1239 | ||
1240 | if (run_slot(slot, NULL) != HTTP_OK) | |
1241 | return -1; | |
1242 | ||
1243 | return 0; | |
1244 | } | |
1245 | ||
1246 | static int stateless_connect(const char *service_name) | |
1247 | { | |
1248 | struct discovery *discover; | |
1249 | struct proxy_state p; | |
1250 | ||
1251 | /* | |
1252 | * Run the info/refs request and see if the server supports protocol | |
1253 | * v2. If and only if the server supports v2 can we successfully | |
1254 | * establish a stateless connection, otherwise we need to tell the | |
1255 | * client to fallback to using other transport helper functions to | |
1256 | * complete their request. | |
1257 | */ | |
1258 | discover = discover_refs(service_name, 0); | |
1259 | if (discover->version != protocol_v2) { | |
1260 | printf("fallback\n"); | |
1261 | fflush(stdout); | |
1262 | return -1; | |
1263 | } else { | |
1264 | /* Stateless Connection established */ | |
1265 | printf("\n"); | |
1266 | fflush(stdout); | |
1267 | } | |
1268 | ||
1269 | proxy_state_init(&p, service_name, discover->version); | |
1270 | ||
1271 | /* | |
1272 | * Dump the capability listing that we got from the server earlier | |
1273 | * during the info/refs request. | |
1274 | */ | |
1275 | write_or_die(p.out, discover->buf, discover->len); | |
1276 | ||
1277 | /* Peek the next packet line. Until we see EOF keep sending POSTs */ | |
1278 | while (packet_reader_peek(&p.reader) != PACKET_READ_EOF) { | |
1279 | if (proxy_request(&p)) { | |
1280 | /* We would have an err here */ | |
1281 | break; | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | proxy_state_clear(&p); | |
1286 | return 0; | |
1287 | } | |
1288 | ||
3f2e2297 | 1289 | int cmd_main(int argc, const char **argv) |
a2d725b7 | 1290 | { |
a2d725b7 | 1291 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 1292 | int nongit; |
a2d725b7 | 1293 | |
a45d3d7e | 1294 | setup_git_directory_gently(&nongit); |
a2d725b7 | 1295 | if (argc < 2) { |
cdaa4e98 | 1296 | error("remote-curl: usage: git remote-curl <remote> [<url>]"); |
a2d725b7 DB |
1297 | return 1; |
1298 | } | |
1299 | ||
ef08ef9e SP |
1300 | options.verbosity = 1; |
1301 | options.progress = !!isatty(2); | |
de1a2fdd | 1302 | options.thin = 1; |
a45a2600 | 1303 | string_list_init(&options.deepen_not, 1); |
511155db | 1304 | string_list_init(&options.push_options, 1); |
ef08ef9e | 1305 | |
a2d725b7 DB |
1306 | remote = remote_get(argv[1]); |
1307 | ||
1308 | if (argc > 2) { | |
b227bbc4 | 1309 | end_url_with_slash(&url, argv[2]); |
a2d725b7 | 1310 | } else { |
b227bbc4 | 1311 | end_url_with_slash(&url, remote->url[0]); |
a2d725b7 DB |
1312 | } |
1313 | ||
b227bbc4 | 1314 | http_init(remote, url.buf, 0); |
888692b7 | 1315 | |
a2d725b7 | 1316 | do { |
95b567c7 JK |
1317 | const char *arg; |
1318 | ||
8f309aeb | 1319 | if (strbuf_getline_lf(&buf, stdin) == EOF) { |
1843f0ce | 1320 | if (ferror(stdin)) |
cdaa4e98 | 1321 | error("remote-curl: error reading command stream from git"); |
1843f0ce SR |
1322 | return 1; |
1323 | } | |
1324 | if (buf.len == 0) | |
a2d725b7 | 1325 | break; |
59556548 | 1326 | if (starts_with(buf.buf, "fetch ")) { |
a45d3d7e | 1327 | if (nongit) |
cdaa4e98 | 1328 | die("remote-curl: fetch attempted without a local repo"); |
292ce46b SP |
1329 | parse_fetch(&buf); |
1330 | ||
59556548 | 1331 | } else if (!strcmp(buf.buf, "list") || starts_with(buf.buf, "list ")) { |
97cc7bc4 SP |
1332 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
1333 | output_refs(get_refs(for_push)); | |
ae4efe19 | 1334 | |
59556548 | 1335 | } else if (starts_with(buf.buf, "push ")) { |
ae4efe19 SP |
1336 | parse_push(&buf); |
1337 | ||
95b567c7 JK |
1338 | } else if (skip_prefix(buf.buf, "option ", &arg)) { |
1339 | char *value = strchr(arg, ' '); | |
ef08ef9e SP |
1340 | int result; |
1341 | ||
1342 | if (value) | |
1343 | *value++ = '\0'; | |
1344 | else | |
1345 | value = "true"; | |
1346 | ||
95b567c7 | 1347 | result = set_option(arg, value); |
ef08ef9e SP |
1348 | if (!result) |
1349 | printf("ok\n"); | |
1350 | else if (result < 0) | |
1351 | printf("error invalid value\n"); | |
1352 | else | |
1353 | printf("unsupported\n"); | |
a2d725b7 | 1354 | fflush(stdout); |
ef08ef9e | 1355 | |
a2d725b7 | 1356 | } else if (!strcmp(buf.buf, "capabilities")) { |
0f1dc53f | 1357 | printf("stateless-connect\n"); |
a2d725b7 | 1358 | printf("fetch\n"); |
ef08ef9e | 1359 | printf("option\n"); |
ae4efe19 | 1360 | printf("push\n"); |
9ba38048 | 1361 | printf("check-connectivity\n"); |
a2d725b7 DB |
1362 | printf("\n"); |
1363 | fflush(stdout); | |
0f1dc53f BW |
1364 | } else if (skip_prefix(buf.buf, "stateless-connect ", &arg)) { |
1365 | if (!stateless_connect(arg)) | |
1366 | break; | |
a2d725b7 | 1367 | } else { |
cdaa4e98 | 1368 | error("remote-curl: unknown command '%s' from git", buf.buf); |
a2d725b7 DB |
1369 | return 1; |
1370 | } | |
1371 | strbuf_reset(&buf); | |
1372 | } while (1); | |
888692b7 TRC |
1373 | |
1374 | http_cleanup(); | |
1375 | ||
a2d725b7 DB |
1376 | return 0; |
1377 | } |