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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" | |
d807c4a0 | 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" |
90dce21e | 18 | #include "quote.h" |
a2d725b7 | 19 | |
37a8768f | 20 | static struct remote *remote; |
b227bbc4 JK |
21 | /* always ends with a trailing slash */ |
22 | static struct strbuf url = STRBUF_INIT; | |
37a8768f | 23 | |
ef08ef9e SP |
24 | struct options { |
25 | int verbosity; | |
26 | unsigned long depth; | |
508ea882 | 27 | char *deepen_since; |
a45a2600 | 28 | struct string_list deepen_not; |
511155db | 29 | struct string_list push_options; |
acb0c572 | 30 | char *filter; |
ef08ef9e | 31 | unsigned progress : 1, |
9ba38048 | 32 | check_self_contained_and_connected : 1, |
16094885 NTND |
33 | cloning : 1, |
34 | update_shallow : 1, | |
ae4efe19 | 35 | followtags : 1, |
de1a2fdd | 36 | dry_run : 1, |
0ea47f9d | 37 | thin : 1, |
30261094 | 38 | /* One of the SEND_PACK_PUSH_CERT_* constants. */ |
cccf74e2 | 39 | push_cert : 2, |
88e2f9ed JT |
40 | deepen_relative : 1, |
41 | from_promisor : 1, | |
42 | no_dependents : 1; | |
ef08ef9e SP |
43 | }; |
44 | static struct options options; | |
05c1eb10 | 45 | static struct string_list cas_options = STRING_LIST_INIT_DUP; |
ef08ef9e | 46 | |
ef08ef9e SP |
47 | static int set_option(const char *name, const char *value) |
48 | { | |
49 | if (!strcmp(name, "verbosity")) { | |
50 | char *end; | |
51 | int v = strtol(value, &end, 10); | |
52 | if (value == end || *end) | |
53 | return -1; | |
54 | options.verbosity = v; | |
55 | return 0; | |
56 | } | |
57 | else if (!strcmp(name, "progress")) { | |
58 | if (!strcmp(value, "true")) | |
59 | options.progress = 1; | |
60 | else if (!strcmp(value, "false")) | |
61 | options.progress = 0; | |
62 | else | |
63 | return -1; | |
249b2004 | 64 | return 0; |
ef08ef9e SP |
65 | } |
66 | else if (!strcmp(name, "depth")) { | |
67 | char *end; | |
68 | unsigned long v = strtoul(value, &end, 10); | |
69 | if (value == end || *end) | |
70 | return -1; | |
71 | options.depth = v; | |
249b2004 | 72 | return 0; |
ef08ef9e | 73 | } |
508ea882 NTND |
74 | else if (!strcmp(name, "deepen-since")) { |
75 | options.deepen_since = xstrdup(value); | |
76 | return 0; | |
77 | } | |
a45a2600 NTND |
78 | else if (!strcmp(name, "deepen-not")) { |
79 | string_list_append(&options.deepen_not, value); | |
80 | return 0; | |
81 | } | |
cccf74e2 NTND |
82 | else if (!strcmp(name, "deepen-relative")) { |
83 | if (!strcmp(value, "true")) | |
84 | options.deepen_relative = 1; | |
85 | else if (!strcmp(value, "false")) | |
86 | options.deepen_relative = 0; | |
87 | else | |
88 | return -1; | |
89 | return 0; | |
90 | } | |
ef08ef9e SP |
91 | else if (!strcmp(name, "followtags")) { |
92 | if (!strcmp(value, "true")) | |
93 | options.followtags = 1; | |
94 | else if (!strcmp(value, "false")) | |
95 | options.followtags = 0; | |
96 | else | |
97 | return -1; | |
249b2004 | 98 | return 0; |
ef08ef9e | 99 | } |
ae4efe19 SP |
100 | else if (!strcmp(name, "dry-run")) { |
101 | if (!strcmp(value, "true")) | |
102 | options.dry_run = 1; | |
103 | else if (!strcmp(value, "false")) | |
104 | options.dry_run = 0; | |
105 | else | |
106 | return -1; | |
107 | return 0; | |
108 | } | |
9ba38048 NTND |
109 | else if (!strcmp(name, "check-connectivity")) { |
110 | if (!strcmp(value, "true")) | |
111 | options.check_self_contained_and_connected = 1; | |
112 | else if (!strcmp(value, "false")) | |
113 | options.check_self_contained_and_connected = 0; | |
114 | else | |
115 | return -1; | |
116 | return 0; | |
117 | } | |
05c1eb10 JH |
118 | else if (!strcmp(name, "cas")) { |
119 | struct strbuf val = STRBUF_INIT; | |
120 | strbuf_addf(&val, "--" CAS_OPT_NAME "=%s", value); | |
121 | string_list_append(&cas_options, val.buf); | |
122 | strbuf_release(&val); | |
123 | return 0; | |
16094885 NTND |
124 | } else if (!strcmp(name, "cloning")) { |
125 | if (!strcmp(value, "true")) | |
126 | options.cloning = 1; | |
127 | else if (!strcmp(value, "false")) | |
128 | options.cloning = 0; | |
129 | else | |
130 | return -1; | |
131 | return 0; | |
132 | } else if (!strcmp(name, "update-shallow")) { | |
133 | if (!strcmp(value, "true")) | |
134 | options.update_shallow = 1; | |
135 | else if (!strcmp(value, "false")) | |
136 | options.update_shallow = 0; | |
137 | else | |
138 | return -1; | |
139 | return 0; | |
0ea47f9d JH |
140 | } else if (!strcmp(name, "pushcert")) { |
141 | if (!strcmp(value, "true")) | |
30261094 | 142 | options.push_cert = SEND_PACK_PUSH_CERT_ALWAYS; |
0ea47f9d | 143 | else if (!strcmp(value, "false")) |
30261094 DB |
144 | options.push_cert = SEND_PACK_PUSH_CERT_NEVER; |
145 | else if (!strcmp(value, "if-asked")) | |
146 | options.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED; | |
0ea47f9d JH |
147 | else |
148 | return -1; | |
149 | return 0; | |
511155db | 150 | } else if (!strcmp(name, "push-option")) { |
90dce21e JK |
151 | if (*value != '"') |
152 | string_list_append(&options.push_options, value); | |
153 | else { | |
154 | struct strbuf unquoted = STRBUF_INIT; | |
155 | if (unquote_c_style(&unquoted, value, NULL) < 0) | |
156 | die("invalid quoting in push-option value"); | |
157 | string_list_append_nodup(&options.push_options, | |
158 | strbuf_detach(&unquoted, NULL)); | |
159 | } | |
511155db | 160 | return 0; |
c915f11e EW |
161 | |
162 | #if LIBCURL_VERSION_NUM >= 0x070a08 | |
163 | } else if (!strcmp(name, "family")) { | |
164 | if (!strcmp(value, "ipv4")) | |
165 | git_curl_ipresolve = CURL_IPRESOLVE_V4; | |
166 | else if (!strcmp(value, "ipv6")) | |
167 | git_curl_ipresolve = CURL_IPRESOLVE_V6; | |
168 | else if (!strcmp(value, "all")) | |
169 | git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER; | |
170 | else | |
171 | return -1; | |
172 | return 0; | |
173 | #endif /* LIBCURL_VERSION_NUM >= 0x070a08 */ | |
88e2f9ed JT |
174 | } else if (!strcmp(name, "from-promisor")) { |
175 | options.from_promisor = 1; | |
176 | return 0; | |
177 | } else if (!strcmp(name, "no-dependents")) { | |
178 | options.no_dependents = 1; | |
179 | return 0; | |
acb0c572 JH |
180 | } else if (!strcmp(name, "filter")) { |
181 | options.filter = xstrdup(value);; | |
182 | return 0; | |
16094885 | 183 | } else { |
ef08ef9e SP |
184 | return 1 /* unsupported */; |
185 | } | |
186 | } | |
187 | ||
97cc7bc4 | 188 | struct discovery { |
f08a5d42 | 189 | char *service; |
97cc7bc4 SP |
190 | char *buf_alloc; |
191 | char *buf; | |
192 | size_t len; | |
2a455202 | 193 | struct ref *refs; |
910650d2 | 194 | struct oid_array shallow; |
49e85e95 | 195 | enum protocol_version version; |
97cc7bc4 SP |
196 | unsigned proto_git : 1; |
197 | }; | |
198 | static struct discovery *last_discovery; | |
199 | ||
b8054bbe JK |
200 | static struct ref *parse_git_refs(struct discovery *heads, int for_push) |
201 | { | |
202 | struct ref *list = NULL; | |
ad6ac124 BW |
203 | struct packet_reader reader; |
204 | ||
205 | packet_reader_init(&reader, -1, heads->buf, heads->len, | |
206 | PACKET_READ_CHOMP_NEWLINE | | |
207 | PACKET_READ_GENTLE_ON_EOF); | |
208 | ||
49e85e95 BW |
209 | heads->version = discover_version(&reader); |
210 | switch (heads->version) { | |
8f6982b4 | 211 | case protocol_v2: |
0f1dc53f BW |
212 | /* |
213 | * Do nothing. This isn't a list of refs but rather a | |
214 | * capability advertisement. Client would have run | |
215 | * 'stateless-connect' so we'll dump this capability listing | |
216 | * and let them request the refs themselves. | |
217 | */ | |
8f6982b4 | 218 | break; |
ad6ac124 BW |
219 | case protocol_v1: |
220 | case protocol_v0: | |
221 | get_remote_heads(&reader, &list, for_push ? REF_NORMAL : 0, | |
222 | NULL, &heads->shallow); | |
223 | break; | |
224 | case protocol_unknown_version: | |
225 | BUG("unknown protocol version"); | |
226 | } | |
227 | ||
b8054bbe JK |
228 | return list; |
229 | } | |
230 | ||
231 | static struct ref *parse_info_refs(struct discovery *heads) | |
232 | { | |
233 | char *data, *start, *mid; | |
234 | char *ref_name; | |
235 | int i = 0; | |
236 | ||
237 | struct ref *refs = NULL; | |
238 | struct ref *ref = NULL; | |
239 | struct ref *last_ref = NULL; | |
240 | ||
241 | data = heads->buf; | |
242 | start = NULL; | |
243 | mid = data; | |
244 | while (i < heads->len) { | |
245 | if (!start) { | |
246 | start = &data[i]; | |
247 | } | |
248 | if (data[i] == '\t') | |
249 | mid = &data[i]; | |
250 | if (data[i] == '\n') { | |
251 | if (mid - start != 40) | |
b227bbc4 JK |
252 | die("%sinfo/refs not valid: is this a git repository?", |
253 | url.buf); | |
b8054bbe JK |
254 | data[i] = 0; |
255 | ref_name = mid + 1; | |
6f687c21 | 256 | ref = alloc_ref(ref_name); |
f4e54d02 | 257 | get_oid_hex(start, &ref->old_oid); |
b8054bbe JK |
258 | if (!refs) |
259 | refs = ref; | |
260 | if (last_ref) | |
261 | last_ref->next = ref; | |
262 | last_ref = ref; | |
263 | start = NULL; | |
264 | } | |
265 | i++; | |
266 | } | |
267 | ||
268 | ref = alloc_ref("HEAD"); | |
b227bbc4 | 269 | if (!http_fetch_ref(url.buf, ref) && |
b8054bbe JK |
270 | !resolve_remote_symref(ref, refs)) { |
271 | ref->next = refs; | |
272 | refs = ref; | |
273 | } else { | |
274 | free(ref); | |
275 | } | |
276 | ||
277 | return refs; | |
278 | } | |
279 | ||
97cc7bc4 SP |
280 | static void free_discovery(struct discovery *d) |
281 | { | |
282 | if (d) { | |
283 | if (d == last_discovery) | |
284 | last_discovery = NULL; | |
ee3051bd | 285 | free(d->shallow.oid); |
97cc7bc4 | 286 | free(d->buf_alloc); |
2a455202 | 287 | free_refs(d->refs); |
f08a5d42 | 288 | free(d->service); |
97cc7bc4 SP |
289 | free(d); |
290 | } | |
291 | } | |
292 | ||
fc1b774c JK |
293 | static int show_http_message(struct strbuf *type, struct strbuf *charset, |
294 | struct strbuf *msg) | |
426e70d4 JK |
295 | { |
296 | const char *p, *eol; | |
297 | ||
298 | /* | |
299 | * We only show text/plain parts, as other types are likely | |
300 | * to be ugly to look at on the user's terminal. | |
426e70d4 | 301 | */ |
bf197fd7 | 302 | if (strcmp(type->buf, "text/plain")) |
426e70d4 | 303 | return -1; |
fc1b774c JK |
304 | if (charset->len) |
305 | strbuf_reencode(msg, charset->buf, get_log_output_encoding()); | |
426e70d4 JK |
306 | |
307 | strbuf_trim(msg); | |
308 | if (!msg->len) | |
309 | return -1; | |
310 | ||
311 | p = msg->buf; | |
312 | do { | |
313 | eol = strchrnul(p, '\n'); | |
314 | fprintf(stderr, "remote: %.*s\n", (int)(eol - p), p); | |
315 | p = eol + 1; | |
316 | } while(*eol); | |
317 | return 0; | |
318 | } | |
319 | ||
884e586f BW |
320 | static int get_protocol_http_header(enum protocol_version version, |
321 | struct strbuf *header) | |
322 | { | |
323 | if (version > 0) { | |
324 | strbuf_addf(header, GIT_PROTOCOL_HEADER ": version=%d", | |
325 | version); | |
326 | ||
327 | return 1; | |
328 | } | |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
24d36f14 | 333 | static struct discovery *discover_refs(const char *service, int for_push) |
a2d725b7 | 334 | { |
4656bf47 SP |
335 | struct strbuf exp = STRBUF_INIT; |
336 | struct strbuf type = STRBUF_INIT; | |
fc1b774c | 337 | struct strbuf charset = STRBUF_INIT; |
a2d725b7 | 338 | struct strbuf buffer = STRBUF_INIT; |
c65d5692 | 339 | struct strbuf refs_url = STRBUF_INIT; |
050ef365 | 340 | struct strbuf effective_url = STRBUF_INIT; |
884e586f BW |
341 | struct strbuf protocol_header = STRBUF_INIT; |
342 | struct string_list extra_headers = STRING_LIST_INIT_DUP; | |
97cc7bc4 | 343 | struct discovery *last = last_discovery; |
243c329c | 344 | int http_ret, maybe_smart = 0; |
fcaa6e64 | 345 | struct http_get_options http_options; |
a4d78ce2 | 346 | enum protocol_version version = get_protocol_version_config(); |
a2d725b7 | 347 | |
97cc7bc4 SP |
348 | if (last && !strcmp(service, last->service)) |
349 | return last; | |
350 | free_discovery(last); | |
a2d725b7 | 351 | |
b227bbc4 | 352 | strbuf_addf(&refs_url, "%sinfo/refs", url.buf); |
59556548 | 353 | if ((starts_with(url.buf, "http://") || starts_with(url.buf, "https://")) && |
02572c2e | 354 | git_env_bool("GIT_SMART_HTTP", 1)) { |
243c329c | 355 | maybe_smart = 1; |
b227bbc4 | 356 | if (!strchr(url.buf, '?')) |
c65d5692 | 357 | strbuf_addch(&refs_url, '?'); |
97cc7bc4 | 358 | else |
c65d5692 JK |
359 | strbuf_addch(&refs_url, '&'); |
360 | strbuf_addf(&refs_url, "service=%s", service); | |
97cc7bc4 | 361 | } |
a2d725b7 | 362 | |
a4d78ce2 BW |
363 | /* |
364 | * NEEDSWORK: If we are trying to use protocol v2 and we are planning | |
365 | * to perform a push, then fallback to v0 since the client doesn't know | |
366 | * how to push yet using v2. | |
367 | */ | |
368 | if (version == protocol_v2 && !strcmp("git-receive-pack", service)) | |
369 | version = protocol_v0; | |
370 | ||
884e586f | 371 | /* Add the extra Git-Protocol header */ |
a4d78ce2 | 372 | if (get_protocol_http_header(version, &protocol_header)) |
884e586f BW |
373 | string_list_append(&extra_headers, protocol_header.buf); |
374 | ||
fcaa6e64 JK |
375 | memset(&http_options, 0, sizeof(http_options)); |
376 | http_options.content_type = &type; | |
377 | http_options.charset = &charset; | |
378 | http_options.effective_url = &effective_url; | |
379 | http_options.base_url = &url; | |
884e586f | 380 | http_options.extra_headers = &extra_headers; |
50d34137 | 381 | http_options.initial_request = 1; |
fcaa6e64 JK |
382 | http_options.no_cache = 1; |
383 | http_options.keep_error = 1; | |
1bbcc224 | 384 | |
fcaa6e64 | 385 | http_ret = http_get_strbuf(refs_url.buf, &buffer, &http_options); |
a2d725b7 DB |
386 | switch (http_ret) { |
387 | case HTTP_OK: | |
388 | break; | |
389 | case HTTP_MISSING_TARGET: | |
fc1b774c | 390 | show_http_message(&type, &charset, &buffer); |
b227bbc4 | 391 | die("repository '%s' not found", url.buf); |
42653c09 | 392 | case HTTP_NOAUTH: |
fc1b774c | 393 | show_http_message(&type, &charset, &buffer); |
b227bbc4 | 394 | die("Authentication failed for '%s'", url.buf); |
a2d725b7 | 395 | default: |
fc1b774c | 396 | show_http_message(&type, &charset, &buffer); |
b227bbc4 | 397 | die("unable to access '%s': %s", url.buf, curl_errorstr); |
a2d725b7 DB |
398 | } |
399 | ||
50d34137 JK |
400 | if (options.verbosity && !starts_with(refs_url.buf, url.buf)) |
401 | warning(_("redirecting to %s"), url.buf); | |
402 | ||
97cc7bc4 | 403 | last= xcalloc(1, sizeof(*last_discovery)); |
f08a5d42 | 404 | last->service = xstrdup(service); |
97cc7bc4 SP |
405 | last->buf_alloc = strbuf_detach(&buffer, &last->len); |
406 | last->buf = last->buf_alloc; | |
407 | ||
4656bf47 SP |
408 | strbuf_addf(&exp, "application/x-%s-advertisement", service); |
409 | if (maybe_smart && | |
410 | (5 <= last->len && last->buf[4] == '#') && | |
411 | !strbuf_cmp(&exp, &type)) { | |
4981fe75 JK |
412 | char *line; |
413 | ||
4656bf47 SP |
414 | /* |
415 | * smart HTTP response; validate that the service | |
97cc7bc4 SP |
416 | * pkt-line matches our request. |
417 | */ | |
4981fe75 | 418 | line = packet_read_line_buf(&last->buf, &last->len, NULL); |
bb1356dc JS |
419 | if (!line) |
420 | die("invalid server response; expected service, got flush packet"); | |
97cc7bc4 | 421 | |
4656bf47 | 422 | strbuf_reset(&exp); |
97cc7bc4 | 423 | strbuf_addf(&exp, "# service=%s", service); |
4981fe75 JK |
424 | if (strcmp(line, exp.buf)) |
425 | die("invalid server response; got '%s'", line); | |
97cc7bc4 SP |
426 | strbuf_release(&exp); |
427 | ||
428 | /* The header can include additional metadata lines, up | |
429 | * until a packet flush marker. Ignore these now, but | |
430 | * in the future we might start to scan them. | |
431 | */ | |
4981fe75 JK |
432 | while (packet_read_line_buf(&last->buf, &last->len, NULL)) |
433 | ; | |
97cc7bc4 SP |
434 | |
435 | last->proto_git = 1; | |
237ffedd BW |
436 | } else if (maybe_smart && |
437 | last->len > 5 && starts_with(last->buf + 4, "version 2")) { | |
438 | last->proto_git = 1; | |
97cc7bc4 SP |
439 | } |
440 | ||
2a455202 JK |
441 | if (last->proto_git) |
442 | last->refs = parse_git_refs(last, for_push); | |
443 | else | |
444 | last->refs = parse_info_refs(last); | |
445 | ||
c65d5692 | 446 | strbuf_release(&refs_url); |
4656bf47 SP |
447 | strbuf_release(&exp); |
448 | strbuf_release(&type); | |
fc1b774c | 449 | strbuf_release(&charset); |
050ef365 | 450 | strbuf_release(&effective_url); |
97cc7bc4 | 451 | strbuf_release(&buffer); |
884e586f BW |
452 | strbuf_release(&protocol_header); |
453 | string_list_clear(&extra_headers, 0); | |
97cc7bc4 SP |
454 | last_discovery = last; |
455 | return last; | |
456 | } | |
457 | ||
97cc7bc4 SP |
458 | static struct ref *get_refs(int for_push) |
459 | { | |
460 | struct discovery *heads; | |
461 | ||
462 | if (for_push) | |
2a455202 | 463 | heads = discover_refs("git-receive-pack", for_push); |
97cc7bc4 | 464 | else |
2a455202 | 465 | heads = discover_refs("git-upload-pack", for_push); |
97cc7bc4 | 466 | |
2a455202 | 467 | return heads->refs; |
97cc7bc4 SP |
468 | } |
469 | ||
ae4efe19 SP |
470 | static void output_refs(struct ref *refs) |
471 | { | |
472 | struct ref *posn; | |
473 | for (posn = refs; posn; posn = posn->next) { | |
474 | if (posn->symref) | |
475 | printf("@%s %s\n", posn->symref, posn->name); | |
476 | else | |
f4e54d02 | 477 | printf("%s %s\n", oid_to_hex(&posn->old_oid), posn->name); |
ae4efe19 SP |
478 | } |
479 | printf("\n"); | |
480 | fflush(stdout); | |
ae4efe19 SP |
481 | } |
482 | ||
de1a2fdd SP |
483 | struct rpc_state { |
484 | const char *service_name; | |
485 | const char **argv; | |
8150749d | 486 | struct strbuf *stdin_preamble; |
de1a2fdd SP |
487 | char *service_url; |
488 | char *hdr_content_type; | |
489 | char *hdr_accept; | |
884e586f | 490 | char *protocol_header; |
de1a2fdd SP |
491 | char *buf; |
492 | size_t alloc; | |
493 | size_t len; | |
494 | size_t pos; | |
495 | int in; | |
496 | int out; | |
296b847c | 497 | int any_written; |
de1a2fdd | 498 | struct strbuf result; |
b8538603 | 499 | unsigned gzip_request : 1; |
6c81a990 | 500 | unsigned initial_buffer : 1; |
de1a2fdd SP |
501 | }; |
502 | ||
503 | static size_t rpc_out(void *ptr, size_t eltsize, | |
504 | size_t nmemb, void *buffer_) | |
505 | { | |
506 | size_t max = eltsize * nmemb; | |
507 | struct rpc_state *rpc = buffer_; | |
508 | size_t avail = rpc->len - rpc->pos; | |
509 | ||
510 | if (!avail) { | |
6c81a990 | 511 | rpc->initial_buffer = 0; |
4981fe75 | 512 | avail = packet_read(rpc->out, NULL, NULL, rpc->buf, rpc->alloc, 0); |
de1a2fdd SP |
513 | if (!avail) |
514 | return 0; | |
515 | rpc->pos = 0; | |
516 | rpc->len = avail; | |
517 | } | |
518 | ||
48310608 | 519 | if (max < avail) |
de1a2fdd SP |
520 | avail = max; |
521 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
522 | rpc->pos += avail; | |
523 | return avail; | |
524 | } | |
525 | ||
6c81a990 | 526 | #ifndef NO_CURL_IOCTL |
5092d3ec | 527 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
528 | { |
529 | struct rpc_state *rpc = clientp; | |
530 | ||
531 | switch (cmd) { | |
532 | case CURLIOCMD_NOP: | |
533 | return CURLIOE_OK; | |
534 | ||
535 | case CURLIOCMD_RESTARTREAD: | |
536 | if (rpc->initial_buffer) { | |
537 | rpc->pos = 0; | |
538 | return CURLIOE_OK; | |
539 | } | |
b725b270 | 540 | error("unable to rewind rpc post data - try increasing http.postBuffer"); |
6c81a990 MS |
541 | return CURLIOE_FAILRESTART; |
542 | ||
543 | default: | |
544 | return CURLIOE_UNKNOWNCMD; | |
545 | } | |
546 | } | |
547 | #endif | |
548 | ||
a04ff3ec | 549 | static size_t rpc_in(char *ptr, size_t eltsize, |
de1a2fdd SP |
550 | size_t nmemb, void *buffer_) |
551 | { | |
552 | size_t size = eltsize * nmemb; | |
553 | struct rpc_state *rpc = buffer_; | |
296b847c DT |
554 | if (size) |
555 | rpc->any_written = 1; | |
de1a2fdd SP |
556 | write_or_die(rpc->in, ptr, size); |
557 | return size; | |
558 | } | |
559 | ||
3a347ed7 JK |
560 | static int run_slot(struct active_request_slot *slot, |
561 | struct slot_results *results) | |
206b099d | 562 | { |
b81401c1 | 563 | int err; |
3a347ed7 | 564 | struct slot_results results_buf; |
206b099d | 565 | |
3a347ed7 JK |
566 | if (!results) |
567 | results = &results_buf; | |
568 | ||
beed336c | 569 | err = run_one_slot(slot, results); |
206b099d | 570 | |
b81401c1 | 571 | if (err != HTTP_OK && err != HTTP_REAUTH) { |
00540458 SP |
572 | struct strbuf msg = STRBUF_INIT; |
573 | if (results->http_code && results->http_code != 200) | |
574 | strbuf_addf(&msg, "HTTP %ld", results->http_code); | |
575 | if (results->curl_result != CURLE_OK) { | |
576 | if (msg.len) | |
577 | strbuf_addch(&msg, ' '); | |
578 | strbuf_addf(&msg, "curl %d", results->curl_result); | |
579 | if (curl_errorstr[0]) { | |
580 | strbuf_addch(&msg, ' '); | |
581 | strbuf_addstr(&msg, curl_errorstr); | |
582 | } | |
583 | } | |
584 | error("RPC failed; %s", msg.buf); | |
585 | strbuf_release(&msg); | |
206b099d SP |
586 | } |
587 | ||
588 | return err; | |
589 | } | |
590 | ||
3a347ed7 | 591 | static int probe_rpc(struct rpc_state *rpc, struct slot_results *results) |
206b099d SP |
592 | { |
593 | struct active_request_slot *slot; | |
8cb01e2f | 594 | struct curl_slist *headers = http_copy_default_headers(); |
206b099d SP |
595 | struct strbuf buf = STRBUF_INIT; |
596 | int err; | |
597 | ||
598 | slot = get_active_slot(); | |
599 | ||
600 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
601 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
602 | ||
603 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
604 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
605 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); | |
aa90b969 | 606 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, NULL); |
206b099d SP |
607 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000"); |
608 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4); | |
609 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
610 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
611 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf); | |
612 | ||
3a347ed7 | 613 | err = run_slot(slot, results); |
206b099d SP |
614 | |
615 | curl_slist_free_all(headers); | |
616 | strbuf_release(&buf); | |
617 | return err; | |
618 | } | |
619 | ||
37ee680d DT |
620 | static curl_off_t xcurl_off_t(ssize_t len) { |
621 | if (len > maximum_signed_value_of_type(curl_off_t)) | |
622 | die("cannot handle pushes this big"); | |
623 | return (curl_off_t) len; | |
624 | } | |
625 | ||
de1a2fdd SP |
626 | static int post_rpc(struct rpc_state *rpc) |
627 | { | |
628 | struct active_request_slot *slot; | |
8cb01e2f | 629 | struct curl_slist *headers = http_copy_default_headers(); |
b8538603 SP |
630 | int use_gzip = rpc->gzip_request; |
631 | char *gzip_body = NULL; | |
37711549 | 632 | size_t gzip_size = 0; |
206b099d | 633 | int err, large_request = 0; |
c80d96ca | 634 | int needs_100_continue = 0; |
de1a2fdd SP |
635 | |
636 | /* Try to load the entire request, if we can fit it into the | |
637 | * allocated buffer space we can use HTTP/1.0 and avoid the | |
638 | * chunked encoding mess. | |
639 | */ | |
640 | while (1) { | |
641 | size_t left = rpc->alloc - rpc->len; | |
642 | char *buf = rpc->buf + rpc->len; | |
643 | int n; | |
644 | ||
645 | if (left < LARGE_PACKET_MAX) { | |
646 | large_request = 1; | |
b8538603 | 647 | use_gzip = 0; |
de1a2fdd SP |
648 | break; |
649 | } | |
650 | ||
4981fe75 | 651 | n = packet_read(rpc->out, NULL, NULL, buf, left, 0); |
de1a2fdd SP |
652 | if (!n) |
653 | break; | |
654 | rpc->len += n; | |
655 | } | |
656 | ||
206b099d | 657 | if (large_request) { |
c80d96ca | 658 | struct slot_results results; |
659 | ||
b81401c1 | 660 | do { |
c80d96ca | 661 | err = probe_rpc(rpc, &results); |
2501aff8 JK |
662 | if (err == HTTP_REAUTH) |
663 | credential_fill(&http_auth); | |
b81401c1 JK |
664 | } while (err == HTTP_REAUTH); |
665 | if (err != HTTP_OK) | |
666 | return -1; | |
c80d96ca | 667 | |
668 | if (results.auth_avail & CURLAUTH_GSSNEGOTIATE) | |
669 | needs_100_continue = 1; | |
206b099d SP |
670 | } |
671 | ||
abf8df86 JK |
672 | headers = curl_slist_append(headers, rpc->hdr_content_type); |
673 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
c80d96ca | 674 | headers = curl_slist_append(headers, needs_100_continue ? |
675 | "Expect: 100-continue" : "Expect:"); | |
abf8df86 | 676 | |
884e586f BW |
677 | /* Add the extra Git-Protocol header */ |
678 | if (rpc->protocol_header) | |
679 | headers = curl_slist_append(headers, rpc->protocol_header); | |
680 | ||
abf8df86 | 681 | retry: |
de1a2fdd | 682 | slot = get_active_slot(); |
de1a2fdd | 683 | |
de1a2fdd | 684 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
d21f9794 | 685 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); |
de1a2fdd | 686 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); |
aa90b969 | 687 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
de1a2fdd | 688 | |
de1a2fdd SP |
689 | if (large_request) { |
690 | /* The request body is large and the size cannot be predicted. | |
691 | * We must use chunked encoding to send it. | |
692 | */ | |
de1a2fdd | 693 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); |
6c81a990 | 694 | rpc->initial_buffer = 1; |
de1a2fdd SP |
695 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
696 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
697 | #ifndef NO_CURL_IOCTL |
698 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
699 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
700 | #endif | |
de1a2fdd SP |
701 | if (options.verbosity > 1) { |
702 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
703 | fflush(stderr); | |
704 | } | |
705 | ||
2e736fd5 JK |
706 | } else if (gzip_body) { |
707 | /* | |
708 | * If we are looping to retry authentication, then the previous | |
709 | * run will have set up the headers and gzip buffer already, | |
710 | * and we just need to send it. | |
711 | */ | |
712 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
37ee680d | 713 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE_LARGE, xcurl_off_t(gzip_size)); |
2e736fd5 | 714 | |
b8538603 SP |
715 | } else if (use_gzip && 1024 < rpc->len) { |
716 | /* The client backend isn't giving us compressed data so | |
717 | * we can try to deflate it ourselves, this may save on. | |
718 | * the transfer time. | |
719 | */ | |
ef49a7a0 | 720 | git_zstream stream; |
b8538603 SP |
721 | int ret; |
722 | ||
55bb5c91 | 723 | git_deflate_init_gzip(&stream, Z_BEST_COMPRESSION); |
df126e10 JK |
724 | gzip_size = git_deflate_bound(&stream, rpc->len); |
725 | gzip_body = xmalloc(gzip_size); | |
b8538603 SP |
726 | |
727 | stream.next_in = (unsigned char *)rpc->buf; | |
728 | stream.avail_in = rpc->len; | |
729 | stream.next_out = (unsigned char *)gzip_body; | |
df126e10 | 730 | stream.avail_out = gzip_size; |
b8538603 | 731 | |
55bb5c91 | 732 | ret = git_deflate(&stream, Z_FINISH); |
b8538603 SP |
733 | if (ret != Z_STREAM_END) |
734 | die("cannot deflate request; zlib deflate error %d", ret); | |
735 | ||
55bb5c91 | 736 | ret = git_deflate_end_gently(&stream); |
b8538603 SP |
737 | if (ret != Z_OK) |
738 | die("cannot deflate request; zlib end error %d", ret); | |
739 | ||
df126e10 | 740 | gzip_size = stream.total_out; |
b8538603 SP |
741 | |
742 | headers = curl_slist_append(headers, "Content-Encoding: gzip"); | |
743 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
37ee680d | 744 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE_LARGE, xcurl_off_t(gzip_size)); |
b8538603 SP |
745 | |
746 | if (options.verbosity > 1) { | |
747 | fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n", | |
748 | rpc->service_name, | |
df126e10 | 749 | (unsigned long)rpc->len, (unsigned long)gzip_size); |
b8538603 SP |
750 | fflush(stderr); |
751 | } | |
de1a2fdd SP |
752 | } else { |
753 | /* We know the complete request size in advance, use the | |
754 | * more normal Content-Length approach. | |
755 | */ | |
756 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf); | |
37ee680d | 757 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE_LARGE, xcurl_off_t(rpc->len)); |
de1a2fdd SP |
758 | if (options.verbosity > 1) { |
759 | fprintf(stderr, "POST %s (%lu bytes)\n", | |
760 | rpc->service_name, (unsigned long)rpc->len); | |
761 | fflush(stderr); | |
762 | } | |
763 | } | |
764 | ||
765 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
766 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in); | |
767 | curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc); | |
768 | ||
296b847c DT |
769 | |
770 | rpc->any_written = 0; | |
3a347ed7 | 771 | err = run_slot(slot, NULL); |
2501aff8 JK |
772 | if (err == HTTP_REAUTH && !large_request) { |
773 | credential_fill(&http_auth); | |
abf8df86 | 774 | goto retry; |
2501aff8 | 775 | } |
b81401c1 JK |
776 | if (err != HTTP_OK) |
777 | err = -1; | |
de1a2fdd | 778 | |
296b847c DT |
779 | if (!rpc->any_written) |
780 | err = -1; | |
781 | ||
de1a2fdd | 782 | curl_slist_free_all(headers); |
b8538603 | 783 | free(gzip_body); |
de1a2fdd SP |
784 | return err; |
785 | } | |
786 | ||
787 | static int rpc_service(struct rpc_state *rpc, struct discovery *heads) | |
788 | { | |
789 | const char *svc = rpc->service_name; | |
790 | struct strbuf buf = STRBUF_INIT; | |
8150749d | 791 | struct strbuf *preamble = rpc->stdin_preamble; |
d3180279 | 792 | struct child_process client = CHILD_PROCESS_INIT; |
de1a2fdd SP |
793 | int err = 0; |
794 | ||
de1a2fdd SP |
795 | client.in = -1; |
796 | client.out = -1; | |
797 | client.git_cmd = 1; | |
798 | client.argv = rpc->argv; | |
799 | if (start_command(&client)) | |
800 | exit(1); | |
8150749d IT |
801 | if (preamble) |
802 | write_or_die(client.in, preamble->buf, preamble->len); | |
de1a2fdd SP |
803 | if (heads) |
804 | write_or_die(client.in, heads->buf, heads->len); | |
805 | ||
806 | rpc->alloc = http_post_buffer; | |
807 | rpc->buf = xmalloc(rpc->alloc); | |
808 | rpc->in = client.in; | |
809 | rpc->out = client.out; | |
810 | strbuf_init(&rpc->result, 0); | |
811 | ||
b227bbc4 | 812 | strbuf_addf(&buf, "%s%s", url.buf, svc); |
de1a2fdd SP |
813 | rpc->service_url = strbuf_detach(&buf, NULL); |
814 | ||
815 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
816 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
817 | ||
8efa5f62 | 818 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
819 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
820 | ||
884e586f BW |
821 | if (get_protocol_http_header(heads->version, &buf)) |
822 | rpc->protocol_header = strbuf_detach(&buf, NULL); | |
823 | else | |
824 | rpc->protocol_header = NULL; | |
825 | ||
de1a2fdd | 826 | while (!err) { |
4981fe75 | 827 | int n = packet_read(rpc->out, NULL, NULL, rpc->buf, rpc->alloc, 0); |
de1a2fdd SP |
828 | if (!n) |
829 | break; | |
830 | rpc->pos = 0; | |
831 | rpc->len = n; | |
832 | err |= post_rpc(rpc); | |
833 | } | |
de1a2fdd SP |
834 | |
835 | close(client.in); | |
de1a2fdd | 836 | client.in = -1; |
6cdf0223 SP |
837 | if (!err) { |
838 | strbuf_read(&rpc->result, client.out, 0); | |
839 | } else { | |
840 | char buf[4096]; | |
841 | for (;;) | |
842 | if (xread(client.out, buf, sizeof(buf)) <= 0) | |
843 | break; | |
844 | } | |
b4ee10f6 SP |
845 | |
846 | close(client.out); | |
de1a2fdd SP |
847 | client.out = -1; |
848 | ||
849 | err |= finish_command(&client); | |
850 | free(rpc->service_url); | |
851 | free(rpc->hdr_content_type); | |
852 | free(rpc->hdr_accept); | |
884e586f | 853 | free(rpc->protocol_header); |
de1a2fdd SP |
854 | free(rpc->buf); |
855 | strbuf_release(&buf); | |
856 | return err; | |
857 | } | |
858 | ||
292ce46b SP |
859 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
860 | { | |
26e1e0b2 | 861 | struct walker *walker; |
b32fa95f | 862 | char **targets; |
292ce46b SP |
863 | int ret, i; |
864 | ||
b32fa95f | 865 | ALLOC_ARRAY(targets, nr_heads); |
508ea882 NTND |
866 | if (options.depth || options.deepen_since) |
867 | die("dumb http transport does not support shallow capabilities"); | |
292ce46b | 868 | for (i = 0; i < nr_heads; i++) |
f4e54d02 | 869 | targets[i] = xstrdup(oid_to_hex(&to_fetch[i]->old_oid)); |
292ce46b | 870 | |
b227bbc4 | 871 | walker = get_http_walker(url.buf); |
ef08ef9e | 872 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
873 | walker->get_recover = 0; |
874 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
26e1e0b2 | 875 | walker_free(walker); |
292ce46b SP |
876 | |
877 | for (i = 0; i < nr_heads; i++) | |
878 | free(targets[i]); | |
879 | free(targets); | |
880 | ||
b725b270 | 881 | return ret ? error("fetch failed.") : 0; |
292ce46b SP |
882 | } |
883 | ||
249b2004 SP |
884 | static int fetch_git(struct discovery *heads, |
885 | int nr_heads, struct ref **to_fetch) | |
886 | { | |
887 | struct rpc_state rpc; | |
8150749d | 888 | struct strbuf preamble = STRBUF_INIT; |
b5f62ebe NTND |
889 | int i, err; |
890 | struct argv_array args = ARGV_ARRAY_INIT; | |
891 | ||
892 | argv_array_pushl(&args, "fetch-pack", "--stateless-rpc", | |
893 | "--stdin", "--lock-pack", NULL); | |
249b2004 | 894 | if (options.followtags) |
b5f62ebe | 895 | argv_array_push(&args, "--include-tag"); |
249b2004 | 896 | if (options.thin) |
b5f62ebe NTND |
897 | argv_array_push(&args, "--thin"); |
898 | if (options.verbosity >= 3) | |
899 | argv_array_pushl(&args, "-v", "-v", NULL); | |
9ba38048 | 900 | if (options.check_self_contained_and_connected) |
b5f62ebe | 901 | argv_array_push(&args, "--check-self-contained-and-connected"); |
16094885 | 902 | if (options.cloning) |
b5f62ebe | 903 | argv_array_push(&args, "--cloning"); |
16094885 | 904 | if (options.update_shallow) |
b5f62ebe | 905 | argv_array_push(&args, "--update-shallow"); |
249b2004 | 906 | if (!options.progress) |
b5f62ebe NTND |
907 | argv_array_push(&args, "--no-progress"); |
908 | if (options.depth) | |
909 | argv_array_pushf(&args, "--depth=%lu", options.depth); | |
508ea882 NTND |
910 | if (options.deepen_since) |
911 | argv_array_pushf(&args, "--shallow-since=%s", options.deepen_since); | |
a45a2600 NTND |
912 | for (i = 0; i < options.deepen_not.nr; i++) |
913 | argv_array_pushf(&args, "--shallow-exclude=%s", | |
914 | options.deepen_not.items[i].string); | |
cccf74e2 NTND |
915 | if (options.deepen_relative && options.depth) |
916 | argv_array_push(&args, "--deepen-relative"); | |
88e2f9ed JT |
917 | if (options.from_promisor) |
918 | argv_array_push(&args, "--from-promisor"); | |
919 | if (options.no_dependents) | |
920 | argv_array_push(&args, "--no-dependents"); | |
acb0c572 JH |
921 | if (options.filter) |
922 | argv_array_pushf(&args, "--filter=%s", options.filter); | |
b5f62ebe | 923 | argv_array_push(&args, url.buf); |
8150749d | 924 | |
249b2004 SP |
925 | for (i = 0; i < nr_heads; i++) { |
926 | struct ref *ref = to_fetch[i]; | |
94ee8e2c | 927 | if (!*ref->name) |
249b2004 | 928 | die("cannot fetch by sha1 over smart http"); |
58f2ed05 | 929 | packet_buf_write(&preamble, "%s %s\n", |
f4e54d02 | 930 | oid_to_hex(&ref->old_oid), ref->name); |
249b2004 | 931 | } |
8150749d | 932 | packet_buf_flush(&preamble); |
249b2004 SP |
933 | |
934 | memset(&rpc, 0, sizeof(rpc)); | |
935 | rpc.service_name = "git-upload-pack", | |
b5f62ebe | 936 | rpc.argv = args.argv; |
8150749d | 937 | rpc.stdin_preamble = &preamble; |
b8538603 | 938 | rpc.gzip_request = 1; |
249b2004 SP |
939 | |
940 | err = rpc_service(&rpc, heads); | |
941 | if (rpc.result.len) | |
cdf4fb8e | 942 | write_or_die(1, rpc.result.buf, rpc.result.len); |
249b2004 | 943 | strbuf_release(&rpc.result); |
8150749d | 944 | strbuf_release(&preamble); |
b5f62ebe | 945 | argv_array_clear(&args); |
249b2004 SP |
946 | return err; |
947 | } | |
948 | ||
949 | static int fetch(int nr_heads, struct ref **to_fetch) | |
950 | { | |
2a455202 | 951 | struct discovery *d = discover_refs("git-upload-pack", 0); |
249b2004 SP |
952 | if (d->proto_git) |
953 | return fetch_git(d, nr_heads, to_fetch); | |
954 | else | |
955 | return fetch_dumb(nr_heads, to_fetch); | |
956 | } | |
957 | ||
292ce46b SP |
958 | static void parse_fetch(struct strbuf *buf) |
959 | { | |
960 | struct ref **to_fetch = NULL; | |
961 | struct ref *list_head = NULL; | |
962 | struct ref **list = &list_head; | |
963 | int alloc_heads = 0, nr_heads = 0; | |
964 | ||
965 | do { | |
95b567c7 JK |
966 | const char *p; |
967 | if (skip_prefix(buf->buf, "fetch ", &p)) { | |
968 | const char *name; | |
292ce46b | 969 | struct ref *ref; |
8338c911 | 970 | struct object_id old_oid; |
292ce46b | 971 | |
8338c911 | 972 | if (get_oid_hex(p, &old_oid)) |
292ce46b | 973 | die("protocol error: expected sha/ref, got %s'", p); |
8338c911 | 974 | if (p[GIT_SHA1_HEXSZ] == ' ') |
975 | name = p + GIT_SHA1_HEXSZ + 1; | |
976 | else if (!p[GIT_SHA1_HEXSZ]) | |
292ce46b SP |
977 | name = ""; |
978 | else | |
979 | die("protocol error: expected sha/ref, got %s'", p); | |
980 | ||
981 | ref = alloc_ref(name); | |
8338c911 | 982 | oidcpy(&ref->old_oid, &old_oid); |
292ce46b SP |
983 | |
984 | *list = ref; | |
985 | list = &ref->next; | |
986 | ||
987 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
988 | to_fetch[nr_heads++] = ref; | |
989 | } | |
990 | else | |
991 | die("http transport does not support %s", buf->buf); | |
992 | ||
993 | strbuf_reset(buf); | |
8f309aeb | 994 | if (strbuf_getline_lf(buf, stdin) == EOF) |
292ce46b SP |
995 | return; |
996 | if (!*buf->buf) | |
997 | break; | |
998 | } while (1); | |
999 | ||
249b2004 | 1000 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
1001 | exit(128); /* error already reported */ |
1002 | free_refs(list_head); | |
1003 | free(to_fetch); | |
1004 | ||
1005 | printf("\n"); | |
1006 | fflush(stdout); | |
1007 | strbuf_reset(buf); | |
1008 | } | |
1009 | ||
ae4efe19 SP |
1010 | static int push_dav(int nr_spec, char **specs) |
1011 | { | |
850d2fec JK |
1012 | struct child_process child = CHILD_PROCESS_INIT; |
1013 | size_t i; | |
ae4efe19 | 1014 | |
850d2fec JK |
1015 | child.git_cmd = 1; |
1016 | argv_array_push(&child.args, "http-push"); | |
1017 | argv_array_push(&child.args, "--helper-status"); | |
ae4efe19 | 1018 | if (options.dry_run) |
850d2fec | 1019 | argv_array_push(&child.args, "--dry-run"); |
ae4efe19 | 1020 | if (options.verbosity > 1) |
850d2fec JK |
1021 | argv_array_push(&child.args, "--verbose"); |
1022 | argv_array_push(&child.args, url.buf); | |
ae4efe19 | 1023 | for (i = 0; i < nr_spec; i++) |
850d2fec | 1024 | argv_array_push(&child.args, specs[i]); |
ae4efe19 | 1025 | |
850d2fec JK |
1026 | if (run_command(&child)) |
1027 | die("git-http-push failed"); | |
ae4efe19 SP |
1028 | return 0; |
1029 | } | |
1030 | ||
de1a2fdd SP |
1031 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
1032 | { | |
1033 | struct rpc_state rpc; | |
222b1212 JH |
1034 | int i, err; |
1035 | struct argv_array args; | |
05c1eb10 | 1036 | struct string_list_item *cas_option; |
26be19ba | 1037 | struct strbuf preamble = STRBUF_INIT; |
222b1212 JH |
1038 | |
1039 | argv_array_init(&args); | |
1040 | argv_array_pushl(&args, "send-pack", "--stateless-rpc", "--helper-status", | |
1041 | NULL); | |
de1a2fdd | 1042 | |
de1a2fdd | 1043 | if (options.thin) |
222b1212 | 1044 | argv_array_push(&args, "--thin"); |
de1a2fdd | 1045 | if (options.dry_run) |
222b1212 | 1046 | argv_array_push(&args, "--dry-run"); |
30261094 DB |
1047 | if (options.push_cert == SEND_PACK_PUSH_CERT_ALWAYS) |
1048 | argv_array_push(&args, "--signed=yes"); | |
1049 | else if (options.push_cert == SEND_PACK_PUSH_CERT_IF_ASKED) | |
1050 | argv_array_push(&args, "--signed=if-asked"); | |
c207e34f | 1051 | if (options.verbosity == 0) |
222b1212 | 1052 | argv_array_push(&args, "--quiet"); |
c207e34f | 1053 | else if (options.verbosity > 1) |
222b1212 | 1054 | argv_array_push(&args, "--verbose"); |
511155db BW |
1055 | for (i = 0; i < options.push_options.nr; i++) |
1056 | argv_array_pushf(&args, "--push-option=%s", | |
1057 | options.push_options.items[i].string); | |
222b1212 | 1058 | argv_array_push(&args, options.progress ? "--progress" : "--no-progress"); |
05c1eb10 | 1059 | for_each_string_list_item(cas_option, &cas_options) |
2233ad45 | 1060 | argv_array_push(&args, cas_option->string); |
b227bbc4 | 1061 | argv_array_push(&args, url.buf); |
26be19ba JK |
1062 | |
1063 | argv_array_push(&args, "--stdin"); | |
de1a2fdd | 1064 | for (i = 0; i < nr_spec; i++) |
26be19ba JK |
1065 | packet_buf_write(&preamble, "%s\n", specs[i]); |
1066 | packet_buf_flush(&preamble); | |
de1a2fdd SP |
1067 | |
1068 | memset(&rpc, 0, sizeof(rpc)); | |
1069 | rpc.service_name = "git-receive-pack", | |
222b1212 | 1070 | rpc.argv = args.argv; |
26be19ba | 1071 | rpc.stdin_preamble = &preamble; |
de1a2fdd SP |
1072 | |
1073 | err = rpc_service(&rpc, heads); | |
1074 | if (rpc.result.len) | |
cdf4fb8e | 1075 | write_or_die(1, rpc.result.buf, rpc.result.len); |
de1a2fdd | 1076 | strbuf_release(&rpc.result); |
26be19ba | 1077 | strbuf_release(&preamble); |
222b1212 | 1078 | argv_array_clear(&args); |
de1a2fdd SP |
1079 | return err; |
1080 | } | |
1081 | ||
1082 | static int push(int nr_spec, char **specs) | |
1083 | { | |
2a455202 | 1084 | struct discovery *heads = discover_refs("git-receive-pack", 1); |
de1a2fdd SP |
1085 | int ret; |
1086 | ||
1087 | if (heads->proto_git) | |
1088 | ret = push_git(heads, nr_spec, specs); | |
1089 | else | |
1090 | ret = push_dav(nr_spec, specs); | |
1091 | free_discovery(heads); | |
1092 | return ret; | |
1093 | } | |
1094 | ||
ae4efe19 SP |
1095 | static void parse_push(struct strbuf *buf) |
1096 | { | |
1097 | char **specs = NULL; | |
5238cbf6 | 1098 | int alloc_spec = 0, nr_spec = 0, i, ret; |
ae4efe19 SP |
1099 | |
1100 | do { | |
59556548 | 1101 | if (starts_with(buf->buf, "push ")) { |
ae4efe19 SP |
1102 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); |
1103 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
1104 | } | |
1105 | else | |
1106 | die("http transport does not support %s", buf->buf); | |
1107 | ||
1108 | strbuf_reset(buf); | |
8f309aeb | 1109 | if (strbuf_getline_lf(buf, stdin) == EOF) |
dc4cd767 | 1110 | goto free_specs; |
ae4efe19 SP |
1111 | if (!*buf->buf) |
1112 | break; | |
1113 | } while (1); | |
1114 | ||
5238cbf6 | 1115 | ret = push(nr_spec, specs); |
ae4efe19 SP |
1116 | printf("\n"); |
1117 | fflush(stdout); | |
dc4cd767 | 1118 | |
5238cbf6 SP |
1119 | if (ret) |
1120 | exit(128); /* error already reported */ | |
1121 | ||
dc4cd767 JM |
1122 | free_specs: |
1123 | for (i = 0; i < nr_spec; i++) | |
1124 | free(specs[i]); | |
1125 | free(specs); | |
ae4efe19 SP |
1126 | } |
1127 | ||
0f1dc53f BW |
1128 | /* |
1129 | * Used to represent the state of a connection to an HTTP server when | |
1130 | * communicating using git's wire-protocol version 2. | |
1131 | */ | |
1132 | struct proxy_state { | |
1133 | char *service_name; | |
1134 | char *service_url; | |
1135 | struct curl_slist *headers; | |
1136 | struct strbuf request_buffer; | |
1137 | int in; | |
1138 | int out; | |
1139 | struct packet_reader reader; | |
1140 | size_t pos; | |
1141 | int seen_flush; | |
1142 | }; | |
1143 | ||
1144 | static void proxy_state_init(struct proxy_state *p, const char *service_name, | |
1145 | enum protocol_version version) | |
1146 | { | |
1147 | struct strbuf buf = STRBUF_INIT; | |
1148 | ||
1149 | memset(p, 0, sizeof(*p)); | |
1150 | p->service_name = xstrdup(service_name); | |
1151 | ||
1152 | p->in = 0; | |
1153 | p->out = 1; | |
1154 | strbuf_init(&p->request_buffer, 0); | |
1155 | ||
1156 | strbuf_addf(&buf, "%s%s", url.buf, p->service_name); | |
1157 | p->service_url = strbuf_detach(&buf, NULL); | |
1158 | ||
1159 | p->headers = http_copy_default_headers(); | |
1160 | ||
1161 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", p->service_name); | |
1162 | p->headers = curl_slist_append(p->headers, buf.buf); | |
1163 | strbuf_reset(&buf); | |
1164 | ||
1165 | strbuf_addf(&buf, "Accept: application/x-%s-result", p->service_name); | |
1166 | p->headers = curl_slist_append(p->headers, buf.buf); | |
1167 | strbuf_reset(&buf); | |
1168 | ||
1169 | p->headers = curl_slist_append(p->headers, "Transfer-Encoding: chunked"); | |
1170 | ||
1171 | /* Add the Git-Protocol header */ | |
1172 | if (get_protocol_http_header(version, &buf)) | |
1173 | p->headers = curl_slist_append(p->headers, buf.buf); | |
1174 | ||
1175 | packet_reader_init(&p->reader, p->in, NULL, 0, | |
1176 | PACKET_READ_GENTLE_ON_EOF); | |
1177 | ||
1178 | strbuf_release(&buf); | |
1179 | } | |
1180 | ||
1181 | static void proxy_state_clear(struct proxy_state *p) | |
1182 | { | |
1183 | free(p->service_name); | |
1184 | free(p->service_url); | |
1185 | curl_slist_free_all(p->headers); | |
1186 | strbuf_release(&p->request_buffer); | |
1187 | } | |
1188 | ||
1189 | /* | |
1190 | * CURLOPT_READFUNCTION callback function. | |
1191 | * Attempts to copy over a single packet-line at a time into the | |
1192 | * curl provided buffer. | |
1193 | */ | |
1194 | static size_t proxy_in(char *buffer, size_t eltsize, | |
1195 | size_t nmemb, void *userdata) | |
1196 | { | |
1197 | size_t max; | |
1198 | struct proxy_state *p = userdata; | |
1199 | size_t avail = p->request_buffer.len - p->pos; | |
1200 | ||
1201 | ||
1202 | if (eltsize != 1) | |
1203 | BUG("curl read callback called with size = %"PRIuMAX" != 1", | |
1204 | (uintmax_t)eltsize); | |
1205 | max = nmemb; | |
1206 | ||
1207 | if (!avail) { | |
1208 | if (p->seen_flush) { | |
1209 | p->seen_flush = 0; | |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | strbuf_reset(&p->request_buffer); | |
1214 | switch (packet_reader_read(&p->reader)) { | |
1215 | case PACKET_READ_EOF: | |
1216 | die("unexpected EOF when reading from parent process"); | |
1217 | case PACKET_READ_NORMAL: | |
1218 | packet_buf_write_len(&p->request_buffer, p->reader.line, | |
1219 | p->reader.pktlen); | |
1220 | break; | |
1221 | case PACKET_READ_DELIM: | |
1222 | packet_buf_delim(&p->request_buffer); | |
1223 | break; | |
1224 | case PACKET_READ_FLUSH: | |
1225 | packet_buf_flush(&p->request_buffer); | |
1226 | p->seen_flush = 1; | |
1227 | break; | |
1228 | } | |
1229 | p->pos = 0; | |
1230 | avail = p->request_buffer.len; | |
1231 | } | |
1232 | ||
1233 | if (max < avail) | |
1234 | avail = max; | |
1235 | memcpy(buffer, p->request_buffer.buf + p->pos, avail); | |
1236 | p->pos += avail; | |
1237 | return avail; | |
1238 | } | |
1239 | ||
1240 | static size_t proxy_out(char *buffer, size_t eltsize, | |
1241 | size_t nmemb, void *userdata) | |
1242 | { | |
1243 | size_t size; | |
1244 | struct proxy_state *p = userdata; | |
1245 | ||
1246 | if (eltsize != 1) | |
1247 | BUG("curl read callback called with size = %"PRIuMAX" != 1", | |
1248 | (uintmax_t)eltsize); | |
1249 | size = nmemb; | |
1250 | ||
1251 | write_or_die(p->out, buffer, size); | |
1252 | return size; | |
1253 | } | |
1254 | ||
1255 | /* Issues a request to the HTTP server configured in `p` */ | |
1256 | static int proxy_request(struct proxy_state *p) | |
1257 | { | |
1258 | struct active_request_slot *slot; | |
1259 | ||
1260 | slot = get_active_slot(); | |
1261 | ||
1262 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
1263 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); | |
1264 | curl_easy_setopt(slot->curl, CURLOPT_URL, p->service_url); | |
1265 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, p->headers); | |
1266 | ||
1267 | /* Setup function to read request from client */ | |
1268 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, proxy_in); | |
1269 | curl_easy_setopt(slot->curl, CURLOPT_READDATA, p); | |
1270 | ||
1271 | /* Setup function to write server response to client */ | |
1272 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, proxy_out); | |
1273 | curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, p); | |
1274 | ||
1275 | if (run_slot(slot, NULL) != HTTP_OK) | |
1276 | return -1; | |
1277 | ||
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | static int stateless_connect(const char *service_name) | |
1282 | { | |
1283 | struct discovery *discover; | |
1284 | struct proxy_state p; | |
1285 | ||
1286 | /* | |
1287 | * Run the info/refs request and see if the server supports protocol | |
1288 | * v2. If and only if the server supports v2 can we successfully | |
1289 | * establish a stateless connection, otherwise we need to tell the | |
1290 | * client to fallback to using other transport helper functions to | |
1291 | * complete their request. | |
1292 | */ | |
1293 | discover = discover_refs(service_name, 0); | |
1294 | if (discover->version != protocol_v2) { | |
1295 | printf("fallback\n"); | |
1296 | fflush(stdout); | |
1297 | return -1; | |
1298 | } else { | |
1299 | /* Stateless Connection established */ | |
1300 | printf("\n"); | |
1301 | fflush(stdout); | |
1302 | } | |
1303 | ||
1304 | proxy_state_init(&p, service_name, discover->version); | |
1305 | ||
1306 | /* | |
1307 | * Dump the capability listing that we got from the server earlier | |
1308 | * during the info/refs request. | |
1309 | */ | |
1310 | write_or_die(p.out, discover->buf, discover->len); | |
1311 | ||
1312 | /* Peek the next packet line. Until we see EOF keep sending POSTs */ | |
1313 | while (packet_reader_peek(&p.reader) != PACKET_READ_EOF) { | |
1314 | if (proxy_request(&p)) { | |
1315 | /* We would have an err here */ | |
1316 | break; | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | proxy_state_clear(&p); | |
1321 | return 0; | |
1322 | } | |
1323 | ||
3f2e2297 | 1324 | int cmd_main(int argc, const char **argv) |
a2d725b7 | 1325 | { |
a2d725b7 | 1326 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 1327 | int nongit; |
a2d725b7 | 1328 | |
a45d3d7e | 1329 | setup_git_directory_gently(&nongit); |
a2d725b7 | 1330 | if (argc < 2) { |
cdaa4e98 | 1331 | error("remote-curl: usage: git remote-curl <remote> [<url>]"); |
a2d725b7 DB |
1332 | return 1; |
1333 | } | |
1334 | ||
ef08ef9e SP |
1335 | options.verbosity = 1; |
1336 | options.progress = !!isatty(2); | |
de1a2fdd | 1337 | options.thin = 1; |
a45a2600 | 1338 | string_list_init(&options.deepen_not, 1); |
511155db | 1339 | string_list_init(&options.push_options, 1); |
ef08ef9e | 1340 | |
a2d725b7 DB |
1341 | remote = remote_get(argv[1]); |
1342 | ||
1343 | if (argc > 2) { | |
b227bbc4 | 1344 | end_url_with_slash(&url, argv[2]); |
a2d725b7 | 1345 | } else { |
b227bbc4 | 1346 | end_url_with_slash(&url, remote->url[0]); |
a2d725b7 DB |
1347 | } |
1348 | ||
b227bbc4 | 1349 | http_init(remote, url.buf, 0); |
888692b7 | 1350 | |
a2d725b7 | 1351 | do { |
95b567c7 JK |
1352 | const char *arg; |
1353 | ||
8f309aeb | 1354 | if (strbuf_getline_lf(&buf, stdin) == EOF) { |
1843f0ce | 1355 | if (ferror(stdin)) |
cdaa4e98 | 1356 | error("remote-curl: error reading command stream from git"); |
1843f0ce SR |
1357 | return 1; |
1358 | } | |
1359 | if (buf.len == 0) | |
a2d725b7 | 1360 | break; |
59556548 | 1361 | if (starts_with(buf.buf, "fetch ")) { |
a45d3d7e | 1362 | if (nongit) |
cdaa4e98 | 1363 | die("remote-curl: fetch attempted without a local repo"); |
292ce46b SP |
1364 | parse_fetch(&buf); |
1365 | ||
59556548 | 1366 | } else if (!strcmp(buf.buf, "list") || starts_with(buf.buf, "list ")) { |
97cc7bc4 SP |
1367 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
1368 | output_refs(get_refs(for_push)); | |
ae4efe19 | 1369 | |
59556548 | 1370 | } else if (starts_with(buf.buf, "push ")) { |
ae4efe19 SP |
1371 | parse_push(&buf); |
1372 | ||
95b567c7 JK |
1373 | } else if (skip_prefix(buf.buf, "option ", &arg)) { |
1374 | char *value = strchr(arg, ' '); | |
ef08ef9e SP |
1375 | int result; |
1376 | ||
1377 | if (value) | |
1378 | *value++ = '\0'; | |
1379 | else | |
1380 | value = "true"; | |
1381 | ||
95b567c7 | 1382 | result = set_option(arg, value); |
ef08ef9e SP |
1383 | if (!result) |
1384 | printf("ok\n"); | |
1385 | else if (result < 0) | |
1386 | printf("error invalid value\n"); | |
1387 | else | |
1388 | printf("unsupported\n"); | |
a2d725b7 | 1389 | fflush(stdout); |
ef08ef9e | 1390 | |
a2d725b7 | 1391 | } else if (!strcmp(buf.buf, "capabilities")) { |
0f1dc53f | 1392 | printf("stateless-connect\n"); |
a2d725b7 | 1393 | printf("fetch\n"); |
ef08ef9e | 1394 | printf("option\n"); |
ae4efe19 | 1395 | printf("push\n"); |
9ba38048 | 1396 | printf("check-connectivity\n"); |
a2d725b7 DB |
1397 | printf("\n"); |
1398 | fflush(stdout); | |
0f1dc53f BW |
1399 | } else if (skip_prefix(buf.buf, "stateless-connect ", &arg)) { |
1400 | if (!stateless_connect(arg)) | |
1401 | break; | |
a2d725b7 | 1402 | } else { |
cdaa4e98 | 1403 | error("remote-curl: unknown command '%s' from git", buf.buf); |
a2d725b7 DB |
1404 | return 1; |
1405 | } | |
1406 | strbuf_reset(&buf); | |
1407 | } while (1); | |
888692b7 TRC |
1408 | |
1409 | http_cleanup(); | |
1410 | ||
a2d725b7 DB |
1411 | return 0; |
1412 | } |