imap-send: support subjectAltName as well
[git/jnareb-git.git] / remote-curl.c
blob69831e931af1fe2a3e668239e8c4bb73a7bfb936
1 #include "cache.h"
2 #include "remote.h"
3 #include "strbuf.h"
4 #include "walker.h"
5 #include "http.h"
6 #include "exec_cmd.h"
7 #include "run-command.h"
8 #include "pkt-line.h"
9 #include "sideband.h"
11 static struct remote *remote;
12 static const char *url; /* always ends with a trailing slash */
14 struct options {
15 int verbosity;
16 unsigned long depth;
17 unsigned progress : 1,
18 followtags : 1,
19 dry_run : 1,
20 thin : 1;
22 static struct options options;
24 static int set_option(const char *name, const char *value)
26 if (!strcmp(name, "verbosity")) {
27 char *end;
28 int v = strtol(value, &end, 10);
29 if (value == end || *end)
30 return -1;
31 options.verbosity = v;
32 return 0;
34 else if (!strcmp(name, "progress")) {
35 if (!strcmp(value, "true"))
36 options.progress = 1;
37 else if (!strcmp(value, "false"))
38 options.progress = 0;
39 else
40 return -1;
41 return 0;
43 else if (!strcmp(name, "depth")) {
44 char *end;
45 unsigned long v = strtoul(value, &end, 10);
46 if (value == end || *end)
47 return -1;
48 options.depth = v;
49 return 0;
51 else if (!strcmp(name, "followtags")) {
52 if (!strcmp(value, "true"))
53 options.followtags = 1;
54 else if (!strcmp(value, "false"))
55 options.followtags = 0;
56 else
57 return -1;
58 return 0;
60 else if (!strcmp(name, "dry-run")) {
61 if (!strcmp(value, "true"))
62 options.dry_run = 1;
63 else if (!strcmp(value, "false"))
64 options.dry_run = 0;
65 else
66 return -1;
67 return 0;
69 else {
70 return 1 /* unsupported */;
74 struct discovery {
75 const char *service;
76 char *buf_alloc;
77 char *buf;
78 size_t len;
79 unsigned proto_git : 1;
81 static struct discovery *last_discovery;
83 static void free_discovery(struct discovery *d)
85 if (d) {
86 if (d == last_discovery)
87 last_discovery = NULL;
88 free(d->buf_alloc);
89 free(d);
93 static struct discovery* discover_refs(const char *service)
95 struct strbuf buffer = STRBUF_INIT;
96 struct discovery *last = last_discovery;
97 char *refs_url;
98 int http_ret, is_http = 0, proto_git_candidate = 1;
100 if (last && !strcmp(service, last->service))
101 return last;
102 free_discovery(last);
104 strbuf_addf(&buffer, "%sinfo/refs", url);
105 if (!prefixcmp(url, "http://") || !prefixcmp(url, "https://")) {
106 is_http = 1;
107 if (!strchr(url, '?'))
108 strbuf_addch(&buffer, '?');
109 else
110 strbuf_addch(&buffer, '&');
111 strbuf_addf(&buffer, "service=%s", service);
113 refs_url = strbuf_detach(&buffer, NULL);
115 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
117 /* try again with "plain" url (no ? or & appended) */
118 if (http_ret != HTTP_OK) {
119 free(refs_url);
120 strbuf_reset(&buffer);
122 proto_git_candidate = 0;
123 strbuf_addf(&buffer, "%sinfo/refs", url);
124 refs_url = strbuf_detach(&buffer, NULL);
126 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
129 switch (http_ret) {
130 case HTTP_OK:
131 break;
132 case HTTP_MISSING_TARGET:
133 die("%s not found: did you run git update-server-info on the"
134 " server?", refs_url);
135 case HTTP_NOAUTH:
136 die("Authentication failed");
137 default:
138 http_error(refs_url, http_ret);
139 die("HTTP request failed");
142 last= xcalloc(1, sizeof(*last_discovery));
143 last->service = service;
144 last->buf_alloc = strbuf_detach(&buffer, &last->len);
145 last->buf = last->buf_alloc;
147 if (is_http && proto_git_candidate
148 && 5 <= last->len && last->buf[4] == '#') {
149 /* smart HTTP response; validate that the service
150 * pkt-line matches our request.
152 struct strbuf exp = STRBUF_INIT;
154 if (packet_get_line(&buffer, &last->buf, &last->len) <= 0)
155 die("%s has invalid packet header", refs_url);
156 if (buffer.len && buffer.buf[buffer.len - 1] == '\n')
157 strbuf_setlen(&buffer, buffer.len - 1);
159 strbuf_addf(&exp, "# service=%s", service);
160 if (strbuf_cmp(&exp, &buffer))
161 die("invalid server response; got '%s'", buffer.buf);
162 strbuf_release(&exp);
164 /* The header can include additional metadata lines, up
165 * until a packet flush marker. Ignore these now, but
166 * in the future we might start to scan them.
168 strbuf_reset(&buffer);
169 while (packet_get_line(&buffer, &last->buf, &last->len) > 0)
170 strbuf_reset(&buffer);
172 last->proto_git = 1;
175 free(refs_url);
176 strbuf_release(&buffer);
177 last_discovery = last;
178 return last;
181 static int write_discovery(int in, int out, void *data)
183 struct discovery *heads = data;
184 int err = 0;
185 if (write_in_full(out, heads->buf, heads->len) != heads->len)
186 err = 1;
187 close(out);
188 return err;
191 static struct ref *parse_git_refs(struct discovery *heads)
193 struct ref *list = NULL;
194 struct async async;
196 memset(&async, 0, sizeof(async));
197 async.proc = write_discovery;
198 async.data = heads;
199 async.out = -1;
201 if (start_async(&async))
202 die("cannot start thread to parse advertised refs");
203 get_remote_heads(async.out, &list, 0, NULL, 0, NULL);
204 close(async.out);
205 if (finish_async(&async))
206 die("ref parsing thread failed");
207 return list;
210 static struct ref *parse_info_refs(struct discovery *heads)
212 char *data, *start, *mid;
213 char *ref_name;
214 int i = 0;
216 struct ref *refs = NULL;
217 struct ref *ref = NULL;
218 struct ref *last_ref = NULL;
220 data = heads->buf;
221 start = NULL;
222 mid = data;
223 while (i < heads->len) {
224 if (!start) {
225 start = &data[i];
227 if (data[i] == '\t')
228 mid = &data[i];
229 if (data[i] == '\n') {
230 if (mid - start != 40)
231 die("%sinfo/refs not valid: is this a git repository?", url);
232 data[i] = 0;
233 ref_name = mid + 1;
234 ref = xmalloc(sizeof(struct ref) +
235 strlen(ref_name) + 1);
236 memset(ref, 0, sizeof(struct ref));
237 strcpy(ref->name, ref_name);
238 get_sha1_hex(start, ref->old_sha1);
239 if (!refs)
240 refs = ref;
241 if (last_ref)
242 last_ref->next = ref;
243 last_ref = ref;
244 start = NULL;
246 i++;
249 ref = alloc_ref("HEAD");
250 if (!http_fetch_ref(url, ref) &&
251 !resolve_remote_symref(ref, refs)) {
252 ref->next = refs;
253 refs = ref;
254 } else {
255 free(ref);
258 return refs;
261 static struct ref *get_refs(int for_push)
263 struct discovery *heads;
265 if (for_push)
266 heads = discover_refs("git-receive-pack");
267 else
268 heads = discover_refs("git-upload-pack");
270 if (heads->proto_git)
271 return parse_git_refs(heads);
272 return parse_info_refs(heads);
275 static void output_refs(struct ref *refs)
277 struct ref *posn;
278 for (posn = refs; posn; posn = posn->next) {
279 if (posn->symref)
280 printf("@%s %s\n", posn->symref, posn->name);
281 else
282 printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name);
284 printf("\n");
285 fflush(stdout);
286 free_refs(refs);
289 struct rpc_state {
290 const char *service_name;
291 const char **argv;
292 char *service_url;
293 char *hdr_content_type;
294 char *hdr_accept;
295 char *buf;
296 size_t alloc;
297 size_t len;
298 size_t pos;
299 int in;
300 int out;
301 struct strbuf result;
302 unsigned gzip_request : 1;
303 unsigned initial_buffer : 1;
306 static size_t rpc_out(void *ptr, size_t eltsize,
307 size_t nmemb, void *buffer_)
309 size_t max = eltsize * nmemb;
310 struct rpc_state *rpc = buffer_;
311 size_t avail = rpc->len - rpc->pos;
313 if (!avail) {
314 rpc->initial_buffer = 0;
315 avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
316 if (!avail)
317 return 0;
318 rpc->pos = 0;
319 rpc->len = avail;
322 if (max < avail)
323 avail = max;
324 memcpy(ptr, rpc->buf + rpc->pos, avail);
325 rpc->pos += avail;
326 return avail;
329 #ifndef NO_CURL_IOCTL
330 static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
332 struct rpc_state *rpc = clientp;
334 switch (cmd) {
335 case CURLIOCMD_NOP:
336 return CURLIOE_OK;
338 case CURLIOCMD_RESTARTREAD:
339 if (rpc->initial_buffer) {
340 rpc->pos = 0;
341 return CURLIOE_OK;
343 fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
344 return CURLIOE_FAILRESTART;
346 default:
347 return CURLIOE_UNKNOWNCMD;
350 #endif
352 static size_t rpc_in(char *ptr, size_t eltsize,
353 size_t nmemb, void *buffer_)
355 size_t size = eltsize * nmemb;
356 struct rpc_state *rpc = buffer_;
357 write_or_die(rpc->in, ptr, size);
358 return size;
361 static int run_slot(struct active_request_slot *slot)
363 int err = 0;
364 struct slot_results results;
366 slot->results = &results;
367 slot->curl_result = curl_easy_perform(slot->curl);
368 finish_active_slot(slot);
370 if (results.curl_result != CURLE_OK) {
371 err |= error("RPC failed; result=%d, HTTP code = %ld",
372 results.curl_result, results.http_code);
375 return err;
378 static int probe_rpc(struct rpc_state *rpc)
380 struct active_request_slot *slot;
381 struct curl_slist *headers = NULL;
382 struct strbuf buf = STRBUF_INIT;
383 int err;
385 slot = get_active_slot();
387 headers = curl_slist_append(headers, rpc->hdr_content_type);
388 headers = curl_slist_append(headers, rpc->hdr_accept);
390 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
391 curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
392 curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
393 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "");
394 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000");
395 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4);
396 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
397 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
398 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf);
400 err = run_slot(slot);
402 curl_slist_free_all(headers);
403 strbuf_release(&buf);
404 return err;
407 static int post_rpc(struct rpc_state *rpc)
409 struct active_request_slot *slot;
410 struct curl_slist *headers = NULL;
411 int use_gzip = rpc->gzip_request;
412 char *gzip_body = NULL;
413 int err, large_request = 0;
415 /* Try to load the entire request, if we can fit it into the
416 * allocated buffer space we can use HTTP/1.0 and avoid the
417 * chunked encoding mess.
419 while (1) {
420 size_t left = rpc->alloc - rpc->len;
421 char *buf = rpc->buf + rpc->len;
422 int n;
424 if (left < LARGE_PACKET_MAX) {
425 large_request = 1;
426 use_gzip = 0;
427 break;
430 n = packet_read_line(rpc->out, buf, left);
431 if (!n)
432 break;
433 rpc->len += n;
436 if (large_request) {
437 err = probe_rpc(rpc);
438 if (err)
439 return err;
442 slot = get_active_slot();
444 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
445 curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
446 curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
447 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "");
449 headers = curl_slist_append(headers, rpc->hdr_content_type);
450 headers = curl_slist_append(headers, rpc->hdr_accept);
451 headers = curl_slist_append(headers, "Expect:");
453 if (large_request) {
454 /* The request body is large and the size cannot be predicted.
455 * We must use chunked encoding to send it.
457 headers = curl_slist_append(headers, "Transfer-Encoding: chunked");
458 rpc->initial_buffer = 1;
459 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out);
460 curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc);
461 #ifndef NO_CURL_IOCTL
462 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl);
463 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc);
464 #endif
465 if (options.verbosity > 1) {
466 fprintf(stderr, "POST %s (chunked)\n", rpc->service_name);
467 fflush(stderr);
470 } else if (use_gzip && 1024 < rpc->len) {
471 /* The client backend isn't giving us compressed data so
472 * we can try to deflate it ourselves, this may save on.
473 * the transfer time.
475 size_t size;
476 git_zstream stream;
477 int ret;
479 memset(&stream, 0, sizeof(stream));
480 git_deflate_init_gzip(&stream, Z_BEST_COMPRESSION);
481 size = git_deflate_bound(&stream, rpc->len);
482 gzip_body = xmalloc(size);
484 stream.next_in = (unsigned char *)rpc->buf;
485 stream.avail_in = rpc->len;
486 stream.next_out = (unsigned char *)gzip_body;
487 stream.avail_out = size;
489 ret = git_deflate(&stream, Z_FINISH);
490 if (ret != Z_STREAM_END)
491 die("cannot deflate request; zlib deflate error %d", ret);
493 ret = git_deflate_end_gently(&stream);
494 if (ret != Z_OK)
495 die("cannot deflate request; zlib end error %d", ret);
497 size = stream.total_out;
499 headers = curl_slist_append(headers, "Content-Encoding: gzip");
500 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body);
501 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size);
503 if (options.verbosity > 1) {
504 fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n",
505 rpc->service_name,
506 (unsigned long)rpc->len, (unsigned long)size);
507 fflush(stderr);
509 } else {
510 /* We know the complete request size in advance, use the
511 * more normal Content-Length approach.
513 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf);
514 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len);
515 if (options.verbosity > 1) {
516 fprintf(stderr, "POST %s (%lu bytes)\n",
517 rpc->service_name, (unsigned long)rpc->len);
518 fflush(stderr);
522 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
523 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in);
524 curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc);
526 err = run_slot(slot);
528 curl_slist_free_all(headers);
529 free(gzip_body);
530 return err;
533 static int rpc_service(struct rpc_state *rpc, struct discovery *heads)
535 const char *svc = rpc->service_name;
536 struct strbuf buf = STRBUF_INIT;
537 struct child_process client;
538 int err = 0;
540 memset(&client, 0, sizeof(client));
541 client.in = -1;
542 client.out = -1;
543 client.git_cmd = 1;
544 client.argv = rpc->argv;
545 if (start_command(&client))
546 exit(1);
547 if (heads)
548 write_or_die(client.in, heads->buf, heads->len);
550 rpc->alloc = http_post_buffer;
551 rpc->buf = xmalloc(rpc->alloc);
552 rpc->in = client.in;
553 rpc->out = client.out;
554 strbuf_init(&rpc->result, 0);
556 strbuf_addf(&buf, "%s%s", url, svc);
557 rpc->service_url = strbuf_detach(&buf, NULL);
559 strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc);
560 rpc->hdr_content_type = strbuf_detach(&buf, NULL);
562 strbuf_addf(&buf, "Accept: application/x-%s-result", svc);
563 rpc->hdr_accept = strbuf_detach(&buf, NULL);
565 while (!err) {
566 int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
567 if (!n)
568 break;
569 rpc->pos = 0;
570 rpc->len = n;
571 err |= post_rpc(rpc);
574 close(client.in);
575 client.in = -1;
576 strbuf_read(&rpc->result, client.out, 0);
578 close(client.out);
579 client.out = -1;
581 err |= finish_command(&client);
582 free(rpc->service_url);
583 free(rpc->hdr_content_type);
584 free(rpc->hdr_accept);
585 free(rpc->buf);
586 strbuf_release(&buf);
587 return err;
590 static int fetch_dumb(int nr_heads, struct ref **to_fetch)
592 struct walker *walker;
593 char **targets = xmalloc(nr_heads * sizeof(char*));
594 int ret, i;
596 if (options.depth)
597 die("dumb http transport does not support --depth");
598 for (i = 0; i < nr_heads; i++)
599 targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
601 walker = get_http_walker(url);
602 walker->get_all = 1;
603 walker->get_tree = 1;
604 walker->get_history = 1;
605 walker->get_verbosely = options.verbosity >= 3;
606 walker->get_recover = 0;
607 ret = walker_fetch(walker, nr_heads, targets, NULL, NULL);
608 walker_free(walker);
610 for (i = 0; i < nr_heads; i++)
611 free(targets[i]);
612 free(targets);
614 return ret ? error("Fetch failed.") : 0;
617 static int fetch_git(struct discovery *heads,
618 int nr_heads, struct ref **to_fetch)
620 struct rpc_state rpc;
621 char *depth_arg = NULL;
622 const char **argv;
623 int argc = 0, i, err;
625 argv = xmalloc((15 + nr_heads) * sizeof(char*));
626 argv[argc++] = "fetch-pack";
627 argv[argc++] = "--stateless-rpc";
628 argv[argc++] = "--lock-pack";
629 if (options.followtags)
630 argv[argc++] = "--include-tag";
631 if (options.thin)
632 argv[argc++] = "--thin";
633 if (options.verbosity >= 3) {
634 argv[argc++] = "-v";
635 argv[argc++] = "-v";
637 if (!options.progress)
638 argv[argc++] = "--no-progress";
639 if (options.depth) {
640 struct strbuf buf = STRBUF_INIT;
641 strbuf_addf(&buf, "--depth=%lu", options.depth);
642 depth_arg = strbuf_detach(&buf, NULL);
643 argv[argc++] = depth_arg;
645 argv[argc++] = url;
646 for (i = 0; i < nr_heads; i++) {
647 struct ref *ref = to_fetch[i];
648 if (!ref->name || !*ref->name)
649 die("cannot fetch by sha1 over smart http");
650 argv[argc++] = ref->name;
652 argv[argc++] = NULL;
654 memset(&rpc, 0, sizeof(rpc));
655 rpc.service_name = "git-upload-pack",
656 rpc.argv = argv;
657 rpc.gzip_request = 1;
659 err = rpc_service(&rpc, heads);
660 if (rpc.result.len)
661 safe_write(1, rpc.result.buf, rpc.result.len);
662 strbuf_release(&rpc.result);
663 free(argv);
664 free(depth_arg);
665 return err;
668 static int fetch(int nr_heads, struct ref **to_fetch)
670 struct discovery *d = discover_refs("git-upload-pack");
671 if (d->proto_git)
672 return fetch_git(d, nr_heads, to_fetch);
673 else
674 return fetch_dumb(nr_heads, to_fetch);
677 static void parse_fetch(struct strbuf *buf)
679 struct ref **to_fetch = NULL;
680 struct ref *list_head = NULL;
681 struct ref **list = &list_head;
682 int alloc_heads = 0, nr_heads = 0;
684 do {
685 if (!prefixcmp(buf->buf, "fetch ")) {
686 char *p = buf->buf + strlen("fetch ");
687 char *name;
688 struct ref *ref;
689 unsigned char old_sha1[20];
691 if (strlen(p) < 40 || get_sha1_hex(p, old_sha1))
692 die("protocol error: expected sha/ref, got %s'", p);
693 if (p[40] == ' ')
694 name = p + 41;
695 else if (!p[40])
696 name = "";
697 else
698 die("protocol error: expected sha/ref, got %s'", p);
700 ref = alloc_ref(name);
701 hashcpy(ref->old_sha1, old_sha1);
703 *list = ref;
704 list = &ref->next;
706 ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads);
707 to_fetch[nr_heads++] = ref;
709 else
710 die("http transport does not support %s", buf->buf);
712 strbuf_reset(buf);
713 if (strbuf_getline(buf, stdin, '\n') == EOF)
714 return;
715 if (!*buf->buf)
716 break;
717 } while (1);
719 if (fetch(nr_heads, to_fetch))
720 exit(128); /* error already reported */
721 free_refs(list_head);
722 free(to_fetch);
724 printf("\n");
725 fflush(stdout);
726 strbuf_reset(buf);
729 static int push_dav(int nr_spec, char **specs)
731 const char **argv = xmalloc((10 + nr_spec) * sizeof(char*));
732 int argc = 0, i;
734 argv[argc++] = "http-push";
735 argv[argc++] = "--helper-status";
736 if (options.dry_run)
737 argv[argc++] = "--dry-run";
738 if (options.verbosity > 1)
739 argv[argc++] = "--verbose";
740 argv[argc++] = url;
741 for (i = 0; i < nr_spec; i++)
742 argv[argc++] = specs[i];
743 argv[argc++] = NULL;
745 if (run_command_v_opt(argv, RUN_GIT_CMD))
746 die("git-%s failed", argv[0]);
747 free(argv);
748 return 0;
751 static int push_git(struct discovery *heads, int nr_spec, char **specs)
753 struct rpc_state rpc;
754 const char **argv;
755 int argc = 0, i, err;
757 argv = xmalloc((10 + nr_spec) * sizeof(char*));
758 argv[argc++] = "send-pack";
759 argv[argc++] = "--stateless-rpc";
760 argv[argc++] = "--helper-status";
761 if (options.thin)
762 argv[argc++] = "--thin";
763 if (options.dry_run)
764 argv[argc++] = "--dry-run";
765 if (options.verbosity > 1)
766 argv[argc++] = "--verbose";
767 argv[argc++] = url;
768 for (i = 0; i < nr_spec; i++)
769 argv[argc++] = specs[i];
770 argv[argc++] = NULL;
772 memset(&rpc, 0, sizeof(rpc));
773 rpc.service_name = "git-receive-pack",
774 rpc.argv = argv;
776 err = rpc_service(&rpc, heads);
777 if (rpc.result.len)
778 safe_write(1, rpc.result.buf, rpc.result.len);
779 strbuf_release(&rpc.result);
780 free(argv);
781 return err;
784 static int push(int nr_spec, char **specs)
786 struct discovery *heads = discover_refs("git-receive-pack");
787 int ret;
789 if (heads->proto_git)
790 ret = push_git(heads, nr_spec, specs);
791 else
792 ret = push_dav(nr_spec, specs);
793 free_discovery(heads);
794 return ret;
797 static void parse_push(struct strbuf *buf)
799 char **specs = NULL;
800 int alloc_spec = 0, nr_spec = 0, i;
802 do {
803 if (!prefixcmp(buf->buf, "push ")) {
804 ALLOC_GROW(specs, nr_spec + 1, alloc_spec);
805 specs[nr_spec++] = xstrdup(buf->buf + 5);
807 else
808 die("http transport does not support %s", buf->buf);
810 strbuf_reset(buf);
811 if (strbuf_getline(buf, stdin, '\n') == EOF)
812 goto free_specs;
813 if (!*buf->buf)
814 break;
815 } while (1);
817 if (push(nr_spec, specs))
818 exit(128); /* error already reported */
820 printf("\n");
821 fflush(stdout);
823 free_specs:
824 for (i = 0; i < nr_spec; i++)
825 free(specs[i]);
826 free(specs);
829 int main(int argc, const char **argv)
831 struct strbuf buf = STRBUF_INIT;
832 int nongit;
834 git_extract_argv0_path(argv[0]);
835 setup_git_directory_gently(&nongit);
836 if (argc < 2) {
837 fprintf(stderr, "Remote needed\n");
838 return 1;
841 options.verbosity = 1;
842 options.progress = !!isatty(2);
843 options.thin = 1;
845 remote = remote_get(argv[1]);
847 if (argc > 2) {
848 end_url_with_slash(&buf, argv[2]);
849 } else {
850 end_url_with_slash(&buf, remote->url[0]);
853 url = strbuf_detach(&buf, NULL);
855 http_init(remote);
857 do {
858 if (strbuf_getline(&buf, stdin, '\n') == EOF)
859 break;
860 if (!prefixcmp(buf.buf, "fetch ")) {
861 if (nongit)
862 die("Fetch attempted without a local repo");
863 parse_fetch(&buf);
865 } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) {
866 int for_push = !!strstr(buf.buf + 4, "for-push");
867 output_refs(get_refs(for_push));
869 } else if (!prefixcmp(buf.buf, "push ")) {
870 parse_push(&buf);
872 } else if (!prefixcmp(buf.buf, "option ")) {
873 char *name = buf.buf + strlen("option ");
874 char *value = strchr(name, ' ');
875 int result;
877 if (value)
878 *value++ = '\0';
879 else
880 value = "true";
882 result = set_option(name, value);
883 if (!result)
884 printf("ok\n");
885 else if (result < 0)
886 printf("error invalid value\n");
887 else
888 printf("unsupported\n");
889 fflush(stdout);
891 } else if (!strcmp(buf.buf, "capabilities")) {
892 printf("fetch\n");
893 printf("option\n");
894 printf("push\n");
895 printf("\n");
896 fflush(stdout);
897 } else {
898 return 1;
900 strbuf_reset(&buf);
901 } while (1);
903 http_cleanup();
905 return 0;