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1c4b6604 | 1 | #include "git-compat-util.h" |
29508e1e | 2 | #include "http.h" |
2264dfa5 | 3 | #include "pack.h" |
de1a2fdd | 4 | #include "sideband.h" |
fe72d420 | 5 | #include "run-command.h" |
f39f72d8 | 6 | #include "url.h" |
6a56993b | 7 | #include "urlmatch.h" |
148bb6a7 | 8 | #include "credential.h" |
745c7c8e | 9 | #include "version.h" |
047ec602 | 10 | #include "pkt-line.h" |
93f7d910 | 11 | #include "gettext.h" |
f4113cac | 12 | #include "transport.h" |
29508e1e | 13 | |
4251ccbd | 14 | int active_requests; |
e9176745 | 15 | int http_is_verbose; |
de1a2fdd | 16 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 17 | |
b8ac9230 MS |
18 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
19 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
20 | #endif | |
21 | ||
ad75ebe5 TRC |
22 | static int min_curl_sessions = 1; |
23 | static int curl_session_count; | |
29508e1e | 24 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
25 | static int max_requests = -1; |
26 | static CURLM *curlm; | |
29508e1e NH |
27 | #endif |
28 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 29 | static CURL *curl_default; |
29508e1e | 30 | #endif |
5424bc55 TRC |
31 | |
32 | #define PREV_BUF_SIZE 4096 | |
33 | #define RANGE_HEADER_SIZE 30 | |
34 | ||
29508e1e NH |
35 | char curl_errorstr[CURL_ERROR_SIZE]; |
36 | ||
cc3530e8 | 37 | static int curl_ssl_verify = -1; |
4bc444eb | 38 | static int curl_ssl_try; |
4251ccbd | 39 | static const char *ssl_cert; |
f6f2a9e4 | 40 | static const char *ssl_cipherlist; |
01861cb7 EP |
41 | static const char *ssl_version; |
42 | static struct { | |
43 | const char *name; | |
44 | long ssl_version; | |
45 | } sslversions[] = { | |
46 | { "sslv2", CURL_SSLVERSION_SSLv2 }, | |
47 | { "sslv3", CURL_SSLVERSION_SSLv3 }, | |
48 | { "tlsv1", CURL_SSLVERSION_TLSv1 }, | |
49 | #if LIBCURL_VERSION_NUM >= 0x072200 | |
50 | { "tlsv1.0", CURL_SSLVERSION_TLSv1_0 }, | |
51 | { "tlsv1.1", CURL_SSLVERSION_TLSv1_1 }, | |
52 | { "tlsv1.2", CURL_SSLVERSION_TLSv1_2 }, | |
53 | #endif | |
54 | }; | |
ef52aafa | 55 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 56 | static const char *ssl_key; |
29508e1e NH |
57 | #endif |
58 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 59 | static const char *ssl_capath; |
29508e1e | 60 | #endif |
4251ccbd | 61 | static const char *ssl_cainfo; |
cc3530e8 MH |
62 | static long curl_low_speed_limit = -1; |
63 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
64 | static int curl_ftp_no_epsv; |
65 | static const char *curl_http_proxy; | |
bcfb95dd | 66 | static const char *curl_cookie_file; |
912b2acf | 67 | static int curl_save_cookies; |
2501aff8 | 68 | struct credential http_auth = CREDENTIAL_INIT; |
a4ddbc33 | 69 | static int http_proactive_auth; |
b1d1058c | 70 | static const char *user_agent; |
29508e1e | 71 | |
30dd9163 ML |
72 | #if LIBCURL_VERSION_NUM >= 0x071700 |
73 | /* Use CURLOPT_KEYPASSWD as is */ | |
74 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
75 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
76 | #else | |
77 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
78 | #endif | |
79 | ||
148bb6a7 | 80 | static struct credential cert_auth = CREDENTIAL_INIT; |
30dd9163 | 81 | static int ssl_cert_password_required; |
4dbe6646 | 82 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
83 | static unsigned long http_auth_methods = CURLAUTH_ANY; | |
84 | #endif | |
30dd9163 | 85 | |
cc3530e8 | 86 | static struct curl_slist *pragma_header; |
5424bc55 | 87 | static struct curl_slist *no_pragma_header; |
e9176745 | 88 | |
4251ccbd | 89 | static struct active_request_slot *active_queue_head; |
29508e1e | 90 | |
f18604bb YE |
91 | static char *cached_accept_language; |
92 | ||
a04ff3ec | 93 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
94 | { |
95 | size_t size = eltsize * nmemb; | |
f444e528 JH |
96 | struct buffer *buffer = buffer_; |
97 | ||
028c2976 MH |
98 | if (size > buffer->buf.len - buffer->posn) |
99 | size = buffer->buf.len - buffer->posn; | |
100 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 101 | buffer->posn += size; |
028c2976 | 102 | |
29508e1e NH |
103 | return size; |
104 | } | |
105 | ||
3944ba0c MS |
106 | #ifndef NO_CURL_IOCTL |
107 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
108 | { | |
109 | struct buffer *buffer = clientp; | |
110 | ||
111 | switch (cmd) { | |
112 | case CURLIOCMD_NOP: | |
113 | return CURLIOE_OK; | |
114 | ||
115 | case CURLIOCMD_RESTARTREAD: | |
116 | buffer->posn = 0; | |
117 | return CURLIOE_OK; | |
118 | ||
119 | default: | |
120 | return CURLIOE_UNKNOWNCMD; | |
121 | } | |
122 | } | |
123 | #endif | |
124 | ||
a04ff3ec | 125 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
126 | { |
127 | size_t size = eltsize * nmemb; | |
f444e528 JH |
128 | struct strbuf *buffer = buffer_; |
129 | ||
028c2976 | 130 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
131 | return size; |
132 | } | |
133 | ||
a04ff3ec | 134 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 135 | { |
29508e1e NH |
136 | return eltsize * nmemb; |
137 | } | |
138 | ||
b90a3d7b JH |
139 | static void closedown_active_slot(struct active_request_slot *slot) |
140 | { | |
141 | active_requests--; | |
142 | slot->in_use = 0; | |
143 | } | |
144 | ||
145 | static void finish_active_slot(struct active_request_slot *slot) | |
146 | { | |
147 | closedown_active_slot(slot); | |
148 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); | |
149 | ||
150 | if (slot->finished != NULL) | |
151 | (*slot->finished) = 1; | |
152 | ||
153 | /* Store slot results so they can be read after the slot is reused */ | |
154 | if (slot->results != NULL) { | |
155 | slot->results->curl_result = slot->curl_result; | |
156 | slot->results->http_code = slot->http_code; | |
157 | #if LIBCURL_VERSION_NUM >= 0x070a08 | |
158 | curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL, | |
159 | &slot->results->auth_avail); | |
160 | #else | |
161 | slot->results->auth_avail = 0; | |
162 | #endif | |
163 | } | |
164 | ||
165 | /* Run callback if appropriate */ | |
166 | if (slot->callback_func != NULL) | |
167 | slot->callback_func(slot->callback_data); | |
168 | } | |
169 | ||
d8b6b84d EW |
170 | static void xmulti_remove_handle(struct active_request_slot *slot) |
171 | { | |
172 | #ifdef USE_CURL_MULTI | |
173 | curl_multi_remove_handle(curlm, slot->curl); | |
174 | #endif | |
175 | } | |
176 | ||
29508e1e NH |
177 | #ifdef USE_CURL_MULTI |
178 | static void process_curl_messages(void) | |
179 | { | |
180 | int num_messages; | |
181 | struct active_request_slot *slot; | |
182 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
183 | ||
184 | while (curl_message != NULL) { | |
185 | if (curl_message->msg == CURLMSG_DONE) { | |
186 | int curl_result = curl_message->data.result; | |
187 | slot = active_queue_head; | |
188 | while (slot != NULL && | |
189 | slot->curl != curl_message->easy_handle) | |
190 | slot = slot->next; | |
191 | if (slot != NULL) { | |
d8b6b84d | 192 | xmulti_remove_handle(slot); |
29508e1e NH |
193 | slot->curl_result = curl_result; |
194 | finish_active_slot(slot); | |
195 | } else { | |
196 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
197 | } | |
198 | } else { | |
199 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
200 | (int)curl_message->msg); | |
201 | } | |
202 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
203 | } | |
204 | } | |
205 | #endif | |
206 | ||
ef90d6d4 | 207 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
208 | { |
209 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 210 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
211 | return 0; |
212 | } | |
f6f2a9e4 LKS |
213 | if (!strcmp("http.sslcipherlist", var)) |
214 | return git_config_string(&ssl_cipherlist, var, value); | |
01861cb7 EP |
215 | if (!strcmp("http.sslversion", var)) |
216 | return git_config_string(&ssl_version, var, value); | |
7059cd99 JH |
217 | if (!strcmp("http.sslcert", var)) |
218 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 219 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
220 | if (!strcmp("http.sslkey", var)) |
221 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
222 | #endif |
223 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 224 | if (!strcmp("http.sslcapath", var)) |
bf9acba2 | 225 | return git_config_pathname(&ssl_capath, var, value); |
29508e1e | 226 | #endif |
7059cd99 | 227 | if (!strcmp("http.sslcainfo", var)) |
bf9acba2 | 228 | return git_config_pathname(&ssl_cainfo, var, value); |
754ae192 | 229 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
3f4ccd2b | 230 | ssl_cert_password_required = git_config_bool(var, value); |
754ae192 ML |
231 | return 0; |
232 | } | |
4bc444eb MV |
233 | if (!strcmp("http.ssltry", var)) { |
234 | curl_ssl_try = git_config_bool(var, value); | |
235 | return 0; | |
236 | } | |
ad75ebe5 TRC |
237 | if (!strcmp("http.minsessions", var)) { |
238 | min_curl_sessions = git_config_int(var, value); | |
239 | #ifndef USE_CURL_MULTI | |
240 | if (min_curl_sessions > 1) | |
241 | min_curl_sessions = 1; | |
242 | #endif | |
243 | return 0; | |
244 | } | |
a6080a0a | 245 | #ifdef USE_CURL_MULTI |
29508e1e | 246 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 247 | max_requests = git_config_int(var, value); |
29508e1e NH |
248 | return 0; |
249 | } | |
250 | #endif | |
29508e1e | 251 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 252 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
253 | return 0; |
254 | } | |
255 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 256 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
257 | return 0; |
258 | } | |
259 | ||
3ea099d4 SK |
260 | if (!strcmp("http.noepsv", var)) { |
261 | curl_ftp_no_epsv = git_config_bool(var, value); | |
262 | return 0; | |
263 | } | |
7059cd99 JH |
264 | if (!strcmp("http.proxy", var)) |
265 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 266 | |
bcfb95dd DB |
267 | if (!strcmp("http.cookiefile", var)) |
268 | return git_config_string(&curl_cookie_file, var, value); | |
912b2acf DB |
269 | if (!strcmp("http.savecookies", var)) { |
270 | curl_save_cookies = git_config_bool(var, value); | |
271 | return 0; | |
272 | } | |
bcfb95dd | 273 | |
de1a2fdd SP |
274 | if (!strcmp("http.postbuffer", var)) { |
275 | http_post_buffer = git_config_int(var, value); | |
276 | if (http_post_buffer < LARGE_PACKET_MAX) | |
277 | http_post_buffer = LARGE_PACKET_MAX; | |
278 | return 0; | |
279 | } | |
280 | ||
b1d1058c SO |
281 | if (!strcmp("http.useragent", var)) |
282 | return git_config_string(&user_agent, var, value); | |
283 | ||
29508e1e | 284 | /* Fall back on the default ones */ |
ef90d6d4 | 285 | return git_default_config(var, value, cb); |
29508e1e NH |
286 | } |
287 | ||
c33976cb JH |
288 | static void init_curl_http_auth(CURL *result) |
289 | { | |
6f4c347c JK |
290 | if (!http_auth.username) |
291 | return; | |
292 | ||
293 | credential_fill(&http_auth); | |
294 | ||
295 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
296 | curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username); | |
297 | curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password); | |
298 | #else | |
299 | { | |
aa0834a0 | 300 | static struct strbuf up = STRBUF_INIT; |
a94cf2cb BC |
301 | /* |
302 | * Note that we assume we only ever have a single set of | |
303 | * credentials in a given program run, so we do not have | |
304 | * to worry about updating this buffer, only setting its | |
305 | * initial value. | |
306 | */ | |
307 | if (!up.len) | |
308 | strbuf_addf(&up, "%s:%s", | |
309 | http_auth.username, http_auth.password); | |
aa0834a0 | 310 | curl_easy_setopt(result, CURLOPT_USERPWD, up.buf); |
c33976cb | 311 | } |
6f4c347c | 312 | #endif |
c33976cb JH |
313 | } |
314 | ||
30dd9163 ML |
315 | static int has_cert_password(void) |
316 | { | |
30dd9163 ML |
317 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
318 | return 0; | |
148bb6a7 JK |
319 | if (!cert_auth.password) { |
320 | cert_auth.protocol = xstrdup("cert"); | |
75e9a405 | 321 | cert_auth.username = xstrdup(""); |
148bb6a7 JK |
322 | cert_auth.path = xstrdup(ssl_cert); |
323 | credential_fill(&cert_auth); | |
324 | } | |
325 | return 1; | |
30dd9163 ML |
326 | } |
327 | ||
47ce1153 JK |
328 | #if LIBCURL_VERSION_NUM >= 0x071900 |
329 | static void set_curl_keepalive(CURL *c) | |
330 | { | |
331 | curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1); | |
332 | } | |
333 | ||
334 | #elif LIBCURL_VERSION_NUM >= 0x071000 | |
a15d069a EW |
335 | static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type) |
336 | { | |
337 | int ka = 1; | |
338 | int rc; | |
339 | socklen_t len = (socklen_t)sizeof(ka); | |
340 | ||
341 | if (type != CURLSOCKTYPE_IPCXN) | |
342 | return 0; | |
343 | ||
344 | rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len); | |
345 | if (rc < 0) | |
346 | warning("unable to set SO_KEEPALIVE on socket %s", | |
347 | strerror(errno)); | |
348 | ||
349 | return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */ | |
350 | } | |
351 | ||
47ce1153 JK |
352 | static void set_curl_keepalive(CURL *c) |
353 | { | |
354 | curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback); | |
355 | } | |
356 | ||
357 | #else | |
358 | static void set_curl_keepalive(CURL *c) | |
359 | { | |
360 | /* not supported on older curl versions */ | |
361 | } | |
362 | #endif | |
363 | ||
4251ccbd | 364 | static CURL *get_curl_handle(void) |
11979b98 | 365 | { |
4251ccbd | 366 | CURL *result = curl_easy_init(); |
f4113cac | 367 | long allowed_protocols = 0; |
11979b98 | 368 | |
faa3807c BR |
369 | if (!result) |
370 | die("curl_easy_init failed"); | |
371 | ||
a5ccc597 JH |
372 | if (!curl_ssl_verify) { |
373 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
374 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
375 | } else { | |
376 | /* Verify authenticity of the peer's certificate */ | |
377 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
378 | /* The name in the cert must match whom we tried to connect */ | |
379 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
380 | } | |
381 | ||
11979b98 JH |
382 | #if LIBCURL_VERSION_NUM >= 0x070907 |
383 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
384 | #endif | |
b8ac9230 | 385 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 386 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 387 | #endif |
11979b98 | 388 | |
a4ddbc33 JK |
389 | if (http_proactive_auth) |
390 | init_curl_http_auth(result); | |
391 | ||
01861cb7 EP |
392 | if (getenv("GIT_SSL_VERSION")) |
393 | ssl_version = getenv("GIT_SSL_VERSION"); | |
394 | if (ssl_version && *ssl_version) { | |
395 | int i; | |
396 | for (i = 0; i < ARRAY_SIZE(sslversions); i++) { | |
397 | if (!strcmp(ssl_version, sslversions[i].name)) { | |
398 | curl_easy_setopt(result, CURLOPT_SSLVERSION, | |
399 | sslversions[i].ssl_version); | |
400 | break; | |
401 | } | |
402 | } | |
403 | if (i == ARRAY_SIZE(sslversions)) | |
404 | warning("unsupported ssl version %s: using default", | |
405 | ssl_version); | |
406 | } | |
407 | ||
f6f2a9e4 LKS |
408 | if (getenv("GIT_SSL_CIPHER_LIST")) |
409 | ssl_cipherlist = getenv("GIT_SSL_CIPHER_LIST"); | |
f6f2a9e4 LKS |
410 | if (ssl_cipherlist != NULL && *ssl_cipherlist) |
411 | curl_easy_setopt(result, CURLOPT_SSL_CIPHER_LIST, | |
412 | ssl_cipherlist); | |
413 | ||
11979b98 JH |
414 | if (ssl_cert != NULL) |
415 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 | 416 | if (has_cert_password()) |
148bb6a7 | 417 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
ef52aafa | 418 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
419 | if (ssl_key != NULL) |
420 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
421 | #endif | |
422 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
423 | if (ssl_capath != NULL) | |
424 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
425 | #endif | |
426 | if (ssl_cainfo != NULL) | |
427 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
11979b98 JH |
428 | |
429 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
430 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
431 | curl_low_speed_limit); | |
432 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
433 | curl_low_speed_time); | |
434 | } | |
435 | ||
436 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
b2581164 | 437 | curl_easy_setopt(result, CURLOPT_MAXREDIRS, 20); |
311e2ea0 TRC |
438 | #if LIBCURL_VERSION_NUM >= 0x071301 |
439 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
440 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
441 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
442 | #endif | |
f4113cac BB |
443 | #if LIBCURL_VERSION_NUM >= 0x071304 |
444 | if (is_transport_allowed("http")) | |
445 | allowed_protocols |= CURLPROTO_HTTP; | |
446 | if (is_transport_allowed("https")) | |
447 | allowed_protocols |= CURLPROTO_HTTPS; | |
448 | if (is_transport_allowed("ftp")) | |
449 | allowed_protocols |= CURLPROTO_FTP; | |
450 | if (is_transport_allowed("ftps")) | |
451 | allowed_protocols |= CURLPROTO_FTPS; | |
452 | curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS, allowed_protocols); | |
453 | #else | |
454 | if (transport_restrict_protocols()) | |
455 | warning("protocol restrictions not applied to curl redirects because\n" | |
456 | "your curl version is too old (>= 7.19.4)"); | |
457 | #endif | |
11979b98 | 458 | |
7982d74e MW |
459 | if (getenv("GIT_CURL_VERBOSE")) |
460 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
461 | ||
b1d1058c | 462 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
745c7c8e | 463 | user_agent ? user_agent : git_user_agent()); |
20fc9bc5 | 464 | |
3ea099d4 SK |
465 | if (curl_ftp_no_epsv) |
466 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
467 | ||
4bc444eb MV |
468 | #ifdef CURLOPT_USE_SSL |
469 | if (curl_ssl_try) | |
470 | curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY); | |
471 | #endif | |
472 | ||
dd613997 | 473 | if (curl_http_proxy) { |
9c5665aa | 474 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); |
6d7afe07 PT |
475 | #if LIBCURL_VERSION_NUM >= 0x071800 |
476 | if (starts_with(curl_http_proxy, "socks5")) | |
477 | curl_easy_setopt(result, | |
478 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5); | |
479 | else if (starts_with(curl_http_proxy, "socks4a")) | |
480 | curl_easy_setopt(result, | |
481 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4A); | |
482 | else if (starts_with(curl_http_proxy, "socks")) | |
483 | curl_easy_setopt(result, | |
484 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4); | |
485 | #endif | |
5841520b | 486 | } |
1c2dbf20 | 487 | #if LIBCURL_VERSION_NUM >= 0x070a07 |
5841520b | 488 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); |
1c2dbf20 | 489 | #endif |
9c5665aa | 490 | |
47ce1153 | 491 | set_curl_keepalive(result); |
a15d069a | 492 | |
11979b98 JH |
493 | return result; |
494 | } | |
495 | ||
7059cd99 JH |
496 | static void set_from_env(const char **var, const char *envname) |
497 | { | |
498 | const char *val = getenv(envname); | |
499 | if (val) | |
500 | *var = val; | |
501 | } | |
502 | ||
a4ddbc33 | 503 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
504 | { |
505 | char *low_speed_limit; | |
506 | char *low_speed_time; | |
6a56993b KM |
507 | char *normalized_url; |
508 | struct urlmatch_config config = { STRING_LIST_INIT_DUP }; | |
509 | ||
510 | config.section = "http"; | |
511 | config.key = NULL; | |
512 | config.collect_fn = http_options; | |
513 | config.cascade_fn = git_default_config; | |
514 | config.cb = NULL; | |
29508e1e | 515 | |
e9176745 | 516 | http_is_verbose = 0; |
6a56993b | 517 | normalized_url = url_normalize(url, &config.url); |
e9176745 | 518 | |
6a56993b KM |
519 | git_config(urlmatch_config_entry, &config); |
520 | free(normalized_url); | |
7059cd99 | 521 | |
faa3807c BR |
522 | if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) |
523 | die("curl_global_init failed"); | |
29508e1e | 524 | |
a4ddbc33 JK |
525 | http_proactive_auth = proactive_auth; |
526 | ||
9fc6440d MH |
527 | if (remote && remote->http_proxy) |
528 | curl_http_proxy = xstrdup(remote->http_proxy); | |
529 | ||
29508e1e | 530 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 531 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
532 | |
533 | #ifdef USE_CURL_MULTI | |
534 | { | |
535 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
536 | if (http_max_requests != NULL) | |
537 | max_requests = atoi(http_max_requests); | |
538 | } | |
539 | ||
540 | curlm = curl_multi_init(); | |
8837eb47 JK |
541 | if (!curlm) |
542 | die("curl_multi_init failed"); | |
29508e1e NH |
543 | #endif |
544 | ||
545 | if (getenv("GIT_SSL_NO_VERIFY")) | |
546 | curl_ssl_verify = 0; | |
547 | ||
7059cd99 | 548 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 549 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 550 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
551 | #endif |
552 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 553 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 554 | #endif |
7059cd99 | 555 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 556 | |
b1d1058c SO |
557 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
558 | ||
29508e1e NH |
559 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
560 | if (low_speed_limit != NULL) | |
561 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
562 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
563 | if (low_speed_time != NULL) | |
564 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
565 | ||
29508e1e NH |
566 | if (curl_ssl_verify == -1) |
567 | curl_ssl_verify = 1; | |
568 | ||
ad75ebe5 | 569 | curl_session_count = 0; |
29508e1e NH |
570 | #ifdef USE_CURL_MULTI |
571 | if (max_requests < 1) | |
572 | max_requests = DEFAULT_MAX_REQUESTS; | |
573 | #endif | |
574 | ||
3ea099d4 SK |
575 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
576 | curl_ftp_no_epsv = 1; | |
577 | ||
deba4937 | 578 | if (url) { |
148bb6a7 | 579 | credential_from_url(&http_auth, url); |
754ae192 ML |
580 | if (!ssl_cert_password_required && |
581 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
59556548 | 582 | starts_with(url, "https://")) |
30dd9163 ML |
583 | ssl_cert_password_required = 1; |
584 | } | |
c33976cb | 585 | |
29508e1e NH |
586 | #ifndef NO_CURL_EASY_DUPHANDLE |
587 | curl_default = get_curl_handle(); | |
588 | #endif | |
589 | } | |
590 | ||
591 | void http_cleanup(void) | |
592 | { | |
593 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
594 | |
595 | while (slot != NULL) { | |
3278cd0a | 596 | struct active_request_slot *next = slot->next; |
f23d1f76 | 597 | if (slot->curl != NULL) { |
d8b6b84d | 598 | xmulti_remove_handle(slot); |
29508e1e | 599 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 600 | } |
3278cd0a SP |
601 | free(slot); |
602 | slot = next; | |
29508e1e | 603 | } |
3278cd0a | 604 | active_queue_head = NULL; |
29508e1e NH |
605 | |
606 | #ifndef NO_CURL_EASY_DUPHANDLE | |
607 | curl_easy_cleanup(curl_default); | |
608 | #endif | |
609 | ||
610 | #ifdef USE_CURL_MULTI | |
611 | curl_multi_cleanup(curlm); | |
612 | #endif | |
613 | curl_global_cleanup(); | |
b3ca4e4e NH |
614 | |
615 | curl_slist_free_all(pragma_header); | |
3278cd0a | 616 | pragma_header = NULL; |
9fc6440d | 617 | |
e9176745 TRC |
618 | curl_slist_free_all(no_pragma_header); |
619 | no_pragma_header = NULL; | |
620 | ||
9fc6440d | 621 | if (curl_http_proxy) { |
e4a80ecf | 622 | free((void *)curl_http_proxy); |
9fc6440d MH |
623 | curl_http_proxy = NULL; |
624 | } | |
30dd9163 | 625 | |
148bb6a7 JK |
626 | if (cert_auth.password != NULL) { |
627 | memset(cert_auth.password, 0, strlen(cert_auth.password)); | |
628 | free(cert_auth.password); | |
629 | cert_auth.password = NULL; | |
30dd9163 ML |
630 | } |
631 | ssl_cert_password_required = 0; | |
f18604bb YE |
632 | |
633 | free(cached_accept_language); | |
634 | cached_accept_language = NULL; | |
29508e1e NH |
635 | } |
636 | ||
29508e1e NH |
637 | struct active_request_slot *get_active_slot(void) |
638 | { | |
639 | struct active_request_slot *slot = active_queue_head; | |
640 | struct active_request_slot *newslot; | |
641 | ||
642 | #ifdef USE_CURL_MULTI | |
643 | int num_transfers; | |
644 | ||
645 | /* Wait for a slot to open up if the queue is full */ | |
646 | while (active_requests >= max_requests) { | |
647 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 648 | if (num_transfers < active_requests) |
29508e1e | 649 | process_curl_messages(); |
29508e1e NH |
650 | } |
651 | #endif | |
652 | ||
4251ccbd | 653 | while (slot != NULL && slot->in_use) |
29508e1e | 654 | slot = slot->next; |
4251ccbd | 655 | |
29508e1e NH |
656 | if (slot == NULL) { |
657 | newslot = xmalloc(sizeof(*newslot)); | |
658 | newslot->curl = NULL; | |
659 | newslot->in_use = 0; | |
660 | newslot->next = NULL; | |
661 | ||
662 | slot = active_queue_head; | |
663 | if (slot == NULL) { | |
664 | active_queue_head = newslot; | |
665 | } else { | |
4251ccbd | 666 | while (slot->next != NULL) |
29508e1e | 667 | slot = slot->next; |
29508e1e NH |
668 | slot->next = newslot; |
669 | } | |
670 | slot = newslot; | |
671 | } | |
672 | ||
673 | if (slot->curl == NULL) { | |
674 | #ifdef NO_CURL_EASY_DUPHANDLE | |
675 | slot->curl = get_curl_handle(); | |
676 | #else | |
677 | slot->curl = curl_easy_duphandle(curl_default); | |
678 | #endif | |
ad75ebe5 | 679 | curl_session_count++; |
29508e1e NH |
680 | } |
681 | ||
682 | active_requests++; | |
683 | slot->in_use = 1; | |
c8568e13 | 684 | slot->results = NULL; |
baa7b67d | 685 | slot->finished = NULL; |
29508e1e NH |
686 | slot->callback_data = NULL; |
687 | slot->callback_func = NULL; | |
bcfb95dd | 688 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
912b2acf DB |
689 | if (curl_save_cookies) |
690 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file); | |
29508e1e | 691 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 692 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
693 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
694 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
695 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 696 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
697 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
698 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
b793acf1 | 699 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1); |
4dbe6646 | 700 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
701 | curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods); | |
702 | #endif | |
dfa1725a JK |
703 | if (http_auth.password) |
704 | init_curl_http_auth(slot->curl); | |
29508e1e NH |
705 | |
706 | return slot; | |
707 | } | |
708 | ||
709 | int start_active_slot(struct active_request_slot *slot) | |
710 | { | |
711 | #ifdef USE_CURL_MULTI | |
712 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 713 | int num_transfers; |
29508e1e NH |
714 | |
715 | if (curlm_result != CURLM_OK && | |
716 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
9f1b5884 EW |
717 | warning("curl_multi_add_handle failed: %s", |
718 | curl_multi_strerror(curlm_result)); | |
29508e1e NH |
719 | active_requests--; |
720 | slot->in_use = 0; | |
721 | return 0; | |
722 | } | |
45c17412 DB |
723 | |
724 | /* | |
725 | * We know there must be something to do, since we just added | |
726 | * something. | |
727 | */ | |
728 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
729 | #endif |
730 | return 1; | |
731 | } | |
732 | ||
733 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
734 | struct fill_chain { |
735 | void *data; | |
736 | int (*fill)(void *); | |
737 | struct fill_chain *next; | |
738 | }; | |
739 | ||
4251ccbd | 740 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
741 | |
742 | void add_fill_function(void *data, int (*fill)(void *)) | |
743 | { | |
e8eec71d | 744 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
745 | struct fill_chain **linkp = &fill_cfg; |
746 | new->data = data; | |
747 | new->fill = fill; | |
748 | new->next = NULL; | |
749 | while (*linkp) | |
750 | linkp = &(*linkp)->next; | |
751 | *linkp = new; | |
752 | } | |
753 | ||
45c17412 DB |
754 | void fill_active_slots(void) |
755 | { | |
756 | struct active_request_slot *slot = active_queue_head; | |
757 | ||
fc57b6aa DB |
758 | while (active_requests < max_requests) { |
759 | struct fill_chain *fill; | |
760 | for (fill = fill_cfg; fill; fill = fill->next) | |
761 | if (fill->fill(fill->data)) | |
762 | break; | |
763 | ||
764 | if (!fill) | |
45c17412 | 765 | break; |
fc57b6aa | 766 | } |
45c17412 DB |
767 | |
768 | while (slot != NULL) { | |
ad75ebe5 TRC |
769 | if (!slot->in_use && slot->curl != NULL |
770 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
771 | curl_easy_cleanup(slot->curl); |
772 | slot->curl = NULL; | |
ad75ebe5 | 773 | curl_session_count--; |
45c17412 DB |
774 | } |
775 | slot = slot->next; | |
776 | } | |
777 | } | |
778 | ||
29508e1e NH |
779 | void step_active_slots(void) |
780 | { | |
781 | int num_transfers; | |
782 | CURLMcode curlm_result; | |
783 | ||
784 | do { | |
785 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
786 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
787 | if (num_transfers < active_requests) { | |
788 | process_curl_messages(); | |
789 | fill_active_slots(); | |
790 | } | |
791 | } | |
792 | #endif | |
793 | ||
794 | void run_active_slot(struct active_request_slot *slot) | |
795 | { | |
796 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
797 | fd_set readfds; |
798 | fd_set writefds; | |
799 | fd_set excfds; | |
800 | int max_fd; | |
801 | struct timeval select_timeout; | |
baa7b67d | 802 | int finished = 0; |
29508e1e | 803 | |
baa7b67d NH |
804 | slot->finished = &finished; |
805 | while (!finished) { | |
29508e1e NH |
806 | step_active_slots(); |
807 | ||
df26c471 | 808 | if (slot->in_use) { |
eb56c821 MF |
809 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
810 | long curl_timeout; | |
811 | curl_multi_timeout(curlm, &curl_timeout); | |
812 | if (curl_timeout == 0) { | |
813 | continue; | |
814 | } else if (curl_timeout == -1) { | |
815 | select_timeout.tv_sec = 0; | |
816 | select_timeout.tv_usec = 50000; | |
817 | } else { | |
818 | select_timeout.tv_sec = curl_timeout / 1000; | |
819 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
820 | } | |
821 | #else | |
822 | select_timeout.tv_sec = 0; | |
823 | select_timeout.tv_usec = 50000; | |
824 | #endif | |
29508e1e | 825 | |
6f9dd67f | 826 | max_fd = -1; |
29508e1e NH |
827 | FD_ZERO(&readfds); |
828 | FD_ZERO(&writefds); | |
829 | FD_ZERO(&excfds); | |
6f9dd67f | 830 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 831 | |
7202b81f SZ |
832 | /* |
833 | * It can happen that curl_multi_timeout returns a pathologically | |
834 | * long timeout when curl_multi_fdset returns no file descriptors | |
835 | * to read. See commit message for more details. | |
836 | */ | |
837 | if (max_fd < 0 && | |
838 | (select_timeout.tv_sec > 0 || | |
839 | select_timeout.tv_usec > 50000)) { | |
840 | select_timeout.tv_sec = 0; | |
841 | select_timeout.tv_usec = 50000; | |
842 | } | |
843 | ||
6f9dd67f | 844 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
845 | } |
846 | } | |
847 | #else | |
848 | while (slot->in_use) { | |
849 | slot->curl_result = curl_easy_perform(slot->curl); | |
850 | finish_active_slot(slot); | |
851 | } | |
852 | #endif | |
853 | } | |
854 | ||
83e41e2e | 855 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
856 | { |
857 | closedown_active_slot(slot); | |
ad75ebe5 | 858 | if (slot->curl && curl_session_count > min_curl_sessions) { |
d8b6b84d | 859 | xmulti_remove_handle(slot); |
53f31389 MW |
860 | curl_easy_cleanup(slot->curl); |
861 | slot->curl = NULL; | |
ad75ebe5 | 862 | curl_session_count--; |
53f31389 | 863 | } |
b3ca4e4e | 864 | #ifdef USE_CURL_MULTI |
53f31389 | 865 | fill_active_slots(); |
b3ca4e4e | 866 | #endif |
53f31389 MW |
867 | } |
868 | ||
29508e1e NH |
869 | void finish_all_active_slots(void) |
870 | { | |
871 | struct active_request_slot *slot = active_queue_head; | |
872 | ||
873 | while (slot != NULL) | |
874 | if (slot->in_use) { | |
875 | run_active_slot(slot); | |
876 | slot = active_queue_head; | |
877 | } else { | |
878 | slot = slot->next; | |
879 | } | |
880 | } | |
d7e92806 | 881 | |
5ace994f | 882 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
883 | static inline int needs_quote(int ch) |
884 | { | |
885 | if (((ch >= 'A') && (ch <= 'Z')) | |
886 | || ((ch >= 'a') && (ch <= 'z')) | |
887 | || ((ch >= '0') && (ch <= '9')) | |
888 | || (ch == '/') | |
889 | || (ch == '-') | |
890 | || (ch == '.')) | |
891 | return 0; | |
892 | return 1; | |
893 | } | |
894 | ||
d7e92806 MH |
895 | static char *quote_ref_url(const char *base, const char *ref) |
896 | { | |
113106e0 | 897 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 898 | const char *cp; |
113106e0 | 899 | int ch; |
d7e92806 | 900 | |
5ace994f | 901 | end_url_with_slash(&buf, base); |
113106e0 TRC |
902 | |
903 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 904 | if (needs_quote(ch)) |
113106e0 | 905 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 906 | else |
113106e0 | 907 | strbuf_addch(&buf, *cp); |
d7e92806 | 908 | |
113106e0 | 909 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
910 | } |
911 | ||
5424bc55 TRC |
912 | void append_remote_object_url(struct strbuf *buf, const char *url, |
913 | const char *hex, | |
914 | int only_two_digit_prefix) | |
915 | { | |
800324c3 TRC |
916 | end_url_with_slash(buf, url); |
917 | ||
918 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
919 | if (!only_two_digit_prefix) |
920 | strbuf_addf(buf, "%s", hex+2); | |
921 | } | |
922 | ||
923 | char *get_remote_object_url(const char *url, const char *hex, | |
924 | int only_two_digit_prefix) | |
925 | { | |
926 | struct strbuf buf = STRBUF_INIT; | |
927 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
928 | return strbuf_detach(&buf, NULL); | |
929 | } | |
930 | ||
b90a3d7b | 931 | static int handle_curl_result(struct slot_results *results) |
88097030 | 932 | { |
6d052d78 JK |
933 | /* |
934 | * If we see a failing http code with CURLE_OK, we have turned off | |
935 | * FAILONERROR (to keep the server's custom error response), and should | |
936 | * translate the code into failure here. | |
937 | */ | |
938 | if (results->curl_result == CURLE_OK && | |
939 | results->http_code >= 400) { | |
940 | results->curl_result = CURLE_HTTP_RETURNED_ERROR; | |
941 | /* | |
942 | * Normally curl will already have put the "reason phrase" | |
943 | * from the server into curl_errorstr; unfortunately without | |
944 | * FAILONERROR it is lost, so we can give only the numeric | |
945 | * status code. | |
946 | */ | |
947 | snprintf(curl_errorstr, sizeof(curl_errorstr), | |
948 | "The requested URL returned error: %ld", | |
949 | results->http_code); | |
950 | } | |
951 | ||
88097030 JK |
952 | if (results->curl_result == CURLE_OK) { |
953 | credential_approve(&http_auth); | |
954 | return HTTP_OK; | |
955 | } else if (missing_target(results)) | |
956 | return HTTP_MISSING_TARGET; | |
957 | else if (results->http_code == 401) { | |
958 | if (http_auth.username && http_auth.password) { | |
959 | credential_reject(&http_auth); | |
960 | return HTTP_NOAUTH; | |
961 | } else { | |
4dbe6646 | 962 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
963 | http_auth_methods &= ~CURLAUTH_GSSNEGOTIATE; | |
964 | #endif | |
88097030 JK |
965 | return HTTP_REAUTH; |
966 | } | |
967 | } else { | |
3503e9ab | 968 | #if LIBCURL_VERSION_NUM >= 0x070c00 |
88097030 JK |
969 | if (!curl_errorstr[0]) |
970 | strlcpy(curl_errorstr, | |
971 | curl_easy_strerror(results->curl_result), | |
972 | sizeof(curl_errorstr)); | |
3503e9ab | 973 | #endif |
88097030 JK |
974 | return HTTP_ERROR; |
975 | } | |
976 | } | |
977 | ||
beed336c JK |
978 | int run_one_slot(struct active_request_slot *slot, |
979 | struct slot_results *results) | |
980 | { | |
981 | slot->results = results; | |
982 | if (!start_active_slot(slot)) { | |
983 | snprintf(curl_errorstr, sizeof(curl_errorstr), | |
984 | "failed to start HTTP request"); | |
985 | return HTTP_START_FAILED; | |
986 | } | |
987 | ||
988 | run_active_slot(slot); | |
989 | return handle_curl_result(results); | |
990 | } | |
991 | ||
132b70a2 JK |
992 | static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf) |
993 | { | |
994 | char *ptr; | |
995 | CURLcode ret; | |
996 | ||
997 | strbuf_reset(buf); | |
998 | ret = curl_easy_getinfo(curl, info, &ptr); | |
999 | if (!ret && ptr) | |
1000 | strbuf_addstr(buf, ptr); | |
1001 | return ret; | |
1002 | } | |
1003 | ||
e3131626 JK |
1004 | /* |
1005 | * Check for and extract a content-type parameter. "raw" | |
1006 | * should be positioned at the start of the potential | |
1007 | * parameter, with any whitespace already removed. | |
1008 | * | |
1009 | * "name" is the name of the parameter. The value is appended | |
1010 | * to "out". | |
1011 | */ | |
1012 | static int extract_param(const char *raw, const char *name, | |
1013 | struct strbuf *out) | |
1014 | { | |
1015 | size_t len = strlen(name); | |
1016 | ||
1017 | if (strncasecmp(raw, name, len)) | |
1018 | return -1; | |
1019 | raw += len; | |
1020 | ||
1021 | if (*raw != '=') | |
1022 | return -1; | |
1023 | raw++; | |
1024 | ||
f34a655d | 1025 | while (*raw && !isspace(*raw) && *raw != ';') |
e3131626 JK |
1026 | strbuf_addch(out, *raw++); |
1027 | return 0; | |
1028 | } | |
1029 | ||
bf197fd7 JK |
1030 | /* |
1031 | * Extract a normalized version of the content type, with any | |
1032 | * spaces suppressed, all letters lowercased, and no trailing ";" | |
1033 | * or parameters. | |
1034 | * | |
1035 | * Note that we will silently remove even invalid whitespace. For | |
1036 | * example, "text / plain" is specifically forbidden by RFC 2616, | |
1037 | * but "text/plain" is the only reasonable output, and this keeps | |
1038 | * our code simple. | |
1039 | * | |
e3131626 JK |
1040 | * If the "charset" argument is not NULL, store the value of any |
1041 | * charset parameter there. | |
1042 | * | |
bf197fd7 | 1043 | * Example: |
e3131626 | 1044 | * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8" |
bf197fd7 JK |
1045 | * "text / plain" -> "text/plain" |
1046 | */ | |
e3131626 JK |
1047 | static void extract_content_type(struct strbuf *raw, struct strbuf *type, |
1048 | struct strbuf *charset) | |
bf197fd7 JK |
1049 | { |
1050 | const char *p; | |
1051 | ||
1052 | strbuf_reset(type); | |
1053 | strbuf_grow(type, raw->len); | |
1054 | for (p = raw->buf; *p; p++) { | |
1055 | if (isspace(*p)) | |
1056 | continue; | |
e3131626 JK |
1057 | if (*p == ';') { |
1058 | p++; | |
bf197fd7 | 1059 | break; |
e3131626 | 1060 | } |
bf197fd7 JK |
1061 | strbuf_addch(type, tolower(*p)); |
1062 | } | |
e3131626 JK |
1063 | |
1064 | if (!charset) | |
1065 | return; | |
1066 | ||
1067 | strbuf_reset(charset); | |
1068 | while (*p) { | |
f34a655d | 1069 | while (isspace(*p) || *p == ';') |
e3131626 JK |
1070 | p++; |
1071 | if (!extract_param(p, "charset", charset)) | |
1072 | return; | |
1073 | while (*p && !isspace(*p)) | |
1074 | p++; | |
1075 | } | |
c553fd1c JK |
1076 | |
1077 | if (!charset->len && starts_with(type->buf, "text/")) | |
1078 | strbuf_addstr(charset, "ISO-8859-1"); | |
bf197fd7 JK |
1079 | } |
1080 | ||
f18604bb YE |
1081 | static void write_accept_language(struct strbuf *buf) |
1082 | { | |
1083 | /* | |
1084 | * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than | |
1085 | * that, q-value will be smaller than 0.001, the minimum q-value the | |
1086 | * HTTP specification allows. See | |
1087 | * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value. | |
1088 | */ | |
1089 | const int MAX_DECIMAL_PLACES = 3; | |
1090 | const int MAX_LANGUAGE_TAGS = 1000; | |
1091 | const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE = 4000; | |
1092 | char **language_tags = NULL; | |
1093 | int num_langs = 0; | |
1094 | const char *s = get_preferred_languages(); | |
1095 | int i; | |
1096 | struct strbuf tag = STRBUF_INIT; | |
1097 | ||
1098 | /* Don't add Accept-Language header if no language is preferred. */ | |
1099 | if (!s) | |
1100 | return; | |
1101 | ||
1102 | /* | |
1103 | * Split the colon-separated string of preferred languages into | |
1104 | * language_tags array. | |
1105 | */ | |
1106 | do { | |
1107 | /* collect language tag */ | |
1108 | for (; *s && (isalnum(*s) || *s == '_'); s++) | |
1109 | strbuf_addch(&tag, *s == '_' ? '-' : *s); | |
1110 | ||
1111 | /* skip .codeset, @modifier and any other unnecessary parts */ | |
1112 | while (*s && *s != ':') | |
1113 | s++; | |
1114 | ||
1115 | if (tag.len) { | |
1116 | num_langs++; | |
1117 | REALLOC_ARRAY(language_tags, num_langs); | |
1118 | language_tags[num_langs - 1] = strbuf_detach(&tag, NULL); | |
1119 | if (num_langs >= MAX_LANGUAGE_TAGS - 1) /* -1 for '*' */ | |
1120 | break; | |
1121 | } | |
1122 | } while (*s++); | |
1123 | ||
1124 | /* write Accept-Language header into buf */ | |
1125 | if (num_langs) { | |
1126 | int last_buf_len = 0; | |
1127 | int max_q; | |
1128 | int decimal_places; | |
1129 | char q_format[32]; | |
1130 | ||
1131 | /* add '*' */ | |
1132 | REALLOC_ARRAY(language_tags, num_langs + 1); | |
1133 | language_tags[num_langs++] = "*"; /* it's OK; this won't be freed */ | |
1134 | ||
1135 | /* compute decimal_places */ | |
1136 | for (max_q = 1, decimal_places = 0; | |
1137 | max_q < num_langs && decimal_places <= MAX_DECIMAL_PLACES; | |
1138 | decimal_places++, max_q *= 10) | |
1139 | ; | |
1140 | ||
1141 | sprintf(q_format, ";q=0.%%0%dd", decimal_places); | |
1142 | ||
1143 | strbuf_addstr(buf, "Accept-Language: "); | |
1144 | ||
1145 | for (i = 0; i < num_langs; i++) { | |
1146 | if (i > 0) | |
1147 | strbuf_addstr(buf, ", "); | |
1148 | ||
1149 | strbuf_addstr(buf, language_tags[i]); | |
1150 | ||
1151 | if (i > 0) | |
1152 | strbuf_addf(buf, q_format, max_q - i); | |
1153 | ||
1154 | if (buf->len > MAX_ACCEPT_LANGUAGE_HEADER_SIZE) { | |
1155 | strbuf_remove(buf, last_buf_len, buf->len - last_buf_len); | |
1156 | break; | |
1157 | } | |
1158 | ||
1159 | last_buf_len = buf->len; | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | /* free language tags -- last one is a static '*' */ | |
1164 | for (i = 0; i < num_langs - 1; i++) | |
1165 | free(language_tags[i]); | |
1166 | free(language_tags); | |
1167 | } | |
1168 | ||
1169 | /* | |
1170 | * Get an Accept-Language header which indicates user's preferred languages. | |
1171 | * | |
1172 | * Examples: | |
1173 | * LANGUAGE= -> "" | |
1174 | * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1" | |
1175 | * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1" | |
1176 | * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1" | |
1177 | * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1" | |
1178 | * LANGUAGE= LANG=C -> "" | |
1179 | */ | |
1180 | static const char *get_accept_language(void) | |
1181 | { | |
1182 | if (!cached_accept_language) { | |
1183 | struct strbuf buf = STRBUF_INIT; | |
1184 | write_accept_language(&buf); | |
1185 | if (buf.len > 0) | |
1186 | cached_accept_language = strbuf_detach(&buf, NULL); | |
1187 | } | |
1188 | ||
1189 | return cached_accept_language; | |
1190 | } | |
1191 | ||
e929cd20 MH |
1192 | /* http_request() targets */ |
1193 | #define HTTP_REQUEST_STRBUF 0 | |
1194 | #define HTTP_REQUEST_FILE 1 | |
1195 | ||
1bbcc224 JK |
1196 | static int http_request(const char *url, |
1197 | void *result, int target, | |
1198 | const struct http_get_options *options) | |
e929cd20 MH |
1199 | { |
1200 | struct active_request_slot *slot; | |
1201 | struct slot_results results; | |
1202 | struct curl_slist *headers = NULL; | |
1203 | struct strbuf buf = STRBUF_INIT; | |
f18604bb | 1204 | const char *accept_language; |
e929cd20 MH |
1205 | int ret; |
1206 | ||
1207 | slot = get_active_slot(); | |
e929cd20 MH |
1208 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); |
1209 | ||
1210 | if (result == NULL) { | |
1211 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
1212 | } else { | |
1213 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
1214 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
1215 | ||
1216 | if (target == HTTP_REQUEST_FILE) { | |
1217 | long posn = ftell(result); | |
1218 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
1219 | fwrite); | |
1220 | if (posn > 0) { | |
1221 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
1222 | headers = curl_slist_append(headers, buf.buf); | |
1223 | strbuf_reset(&buf); | |
1224 | } | |
e929cd20 MH |
1225 | } else |
1226 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
1227 | fwrite_buffer); | |
1228 | } | |
1229 | ||
f18604bb YE |
1230 | accept_language = get_accept_language(); |
1231 | ||
1232 | if (accept_language) | |
1233 | headers = curl_slist_append(headers, accept_language); | |
1234 | ||
e929cd20 | 1235 | strbuf_addstr(&buf, "Pragma:"); |
1bbcc224 | 1236 | if (options && options->no_cache) |
e929cd20 | 1237 | strbuf_addstr(&buf, " no-cache"); |
1bbcc224 | 1238 | if (options && options->keep_error) |
6d052d78 | 1239 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0); |
e929cd20 MH |
1240 | |
1241 | headers = curl_slist_append(headers, buf.buf); | |
1242 | ||
1243 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
1244 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
aa90b969 | 1245 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
e929cd20 | 1246 | |
beed336c | 1247 | ret = run_one_slot(slot, &results); |
e929cd20 | 1248 | |
bf197fd7 JK |
1249 | if (options && options->content_type) { |
1250 | struct strbuf raw = STRBUF_INIT; | |
1251 | curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw); | |
e3131626 JK |
1252 | extract_content_type(&raw, options->content_type, |
1253 | options->charset); | |
bf197fd7 JK |
1254 | strbuf_release(&raw); |
1255 | } | |
4656bf47 | 1256 | |
78868962 JK |
1257 | if (options && options->effective_url) |
1258 | curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL, | |
1259 | options->effective_url); | |
4656bf47 | 1260 | |
e929cd20 MH |
1261 | curl_slist_free_all(headers); |
1262 | strbuf_release(&buf); | |
1263 | ||
1264 | return ret; | |
1265 | } | |
1266 | ||
c93c92f3 JK |
1267 | /* |
1268 | * Update the "base" url to a more appropriate value, as deduced by | |
1269 | * redirects seen when requesting a URL starting with "url". | |
1270 | * | |
1271 | * The "asked" parameter is a URL that we asked curl to access, and must begin | |
1272 | * with "base". | |
1273 | * | |
1274 | * The "got" parameter is the URL that curl reported to us as where we ended | |
1275 | * up. | |
1276 | * | |
1277 | * Returns 1 if we updated the base url, 0 otherwise. | |
1278 | * | |
1279 | * Our basic strategy is to compare "base" and "asked" to find the bits | |
1280 | * specific to our request. We then strip those bits off of "got" to yield the | |
1281 | * new base. So for example, if our base is "http://example.com/foo.git", | |
1282 | * and we ask for "http://example.com/foo.git/info/refs", we might end up | |
1283 | * with "https://other.example.com/foo.git/info/refs". We would want the | |
1284 | * new URL to become "https://other.example.com/foo.git". | |
1285 | * | |
1286 | * Note that this assumes a sane redirect scheme. It's entirely possible | |
1287 | * in the example above to end up at a URL that does not even end in | |
1288 | * "info/refs". In such a case we simply punt, as there is not much we can | |
1289 | * do (and such a scheme is unlikely to represent a real git repository, | |
1290 | * which means we are likely about to abort anyway). | |
1291 | */ | |
1292 | static int update_url_from_redirect(struct strbuf *base, | |
1293 | const char *asked, | |
1294 | const struct strbuf *got) | |
1295 | { | |
1296 | const char *tail; | |
1297 | size_t tail_len; | |
1298 | ||
1299 | if (!strcmp(asked, got->buf)) | |
1300 | return 0; | |
1301 | ||
de8118e1 | 1302 | if (!skip_prefix(asked, base->buf, &tail)) |
c93c92f3 JK |
1303 | die("BUG: update_url_from_redirect: %s is not a superset of %s", |
1304 | asked, base->buf); | |
1305 | ||
c93c92f3 JK |
1306 | tail_len = strlen(tail); |
1307 | ||
1308 | if (got->len < tail_len || | |
1309 | strcmp(tail, got->buf + got->len - tail_len)) | |
1310 | return 0; /* insane redirect scheme */ | |
1311 | ||
1312 | strbuf_reset(base); | |
1313 | strbuf_add(base, got->buf, got->len - tail_len); | |
1314 | return 1; | |
1315 | } | |
1316 | ||
4656bf47 | 1317 | static int http_request_reauth(const char *url, |
4656bf47 | 1318 | void *result, int target, |
1bbcc224 | 1319 | struct http_get_options *options) |
8d677edc | 1320 | { |
1bbcc224 | 1321 | int ret = http_request(url, result, target, options); |
c93c92f3 JK |
1322 | |
1323 | if (options && options->effective_url && options->base_url) { | |
1324 | if (update_url_from_redirect(options->base_url, | |
1325 | url, options->effective_url)) { | |
1326 | credential_from_url(&http_auth, options->base_url->buf); | |
1327 | url = options->effective_url->buf; | |
1328 | } | |
1329 | } | |
1330 | ||
8d677edc JK |
1331 | if (ret != HTTP_REAUTH) |
1332 | return ret; | |
6d052d78 JK |
1333 | |
1334 | /* | |
1335 | * If we are using KEEP_ERROR, the previous request may have | |
1336 | * put cruft into our output stream; we should clear it out before | |
1337 | * making our next request. We only know how to do this for | |
1338 | * the strbuf case, but that is enough to satisfy current callers. | |
1339 | */ | |
1bbcc224 | 1340 | if (options && options->keep_error) { |
6d052d78 JK |
1341 | switch (target) { |
1342 | case HTTP_REQUEST_STRBUF: | |
1343 | strbuf_reset(result); | |
1344 | break; | |
1345 | default: | |
1346 | die("BUG: HTTP_KEEP_ERROR is only supported with strbufs"); | |
1347 | } | |
1348 | } | |
2501aff8 JK |
1349 | |
1350 | credential_fill(&http_auth); | |
1351 | ||
1bbcc224 | 1352 | return http_request(url, result, target, options); |
8d677edc JK |
1353 | } |
1354 | ||
4656bf47 | 1355 | int http_get_strbuf(const char *url, |
1bbcc224 JK |
1356 | struct strbuf *result, |
1357 | struct http_get_options *options) | |
e929cd20 | 1358 | { |
1bbcc224 | 1359 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
1360 | } |
1361 | ||
83e41e2e | 1362 | /* |
a7793a74 | 1363 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
1364 | * |
1365 | * If a previous interrupted download is detected (i.e. a previous temporary | |
1366 | * file is still around) the download is resumed. | |
1367 | */ | |
1bbcc224 JK |
1368 | static int http_get_file(const char *url, const char *filename, |
1369 | struct http_get_options *options) | |
e929cd20 MH |
1370 | { |
1371 | int ret; | |
1372 | struct strbuf tmpfile = STRBUF_INIT; | |
1373 | FILE *result; | |
1374 | ||
1375 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
1376 | result = fopen(tmpfile.buf, "a"); | |
3d1fb769 | 1377 | if (!result) { |
e929cd20 MH |
1378 | error("Unable to open local file %s", tmpfile.buf); |
1379 | ret = HTTP_ERROR; | |
1380 | goto cleanup; | |
1381 | } | |
1382 | ||
1bbcc224 | 1383 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
1384 | fclose(result); |
1385 | ||
cb5add58 | 1386 | if (ret == HTTP_OK && finalize_object_file(tmpfile.buf, filename)) |
e929cd20 MH |
1387 | ret = HTTP_ERROR; |
1388 | cleanup: | |
1389 | strbuf_release(&tmpfile); | |
1390 | return ret; | |
1391 | } | |
1392 | ||
c13b2633 | 1393 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 | 1394 | { |
1bbcc224 | 1395 | struct http_get_options options = {0}; |
d7e92806 MH |
1396 | char *url; |
1397 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 1398 | int ret = -1; |
d7e92806 | 1399 | |
1bbcc224 JK |
1400 | options.no_cache = 1; |
1401 | ||
c13b2633 | 1402 | url = quote_ref_url(base, ref->name); |
1bbcc224 | 1403 | if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) { |
0d5896e1 MH |
1404 | strbuf_rtrim(&buffer); |
1405 | if (buffer.len == 40) | |
1406 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
59556548 | 1407 | else if (starts_with(buffer.buf, "ref: ")) { |
0d5896e1 MH |
1408 | ref->symref = xstrdup(buffer.buf + 5); |
1409 | ret = 0; | |
d7e92806 | 1410 | } |
d7e92806 MH |
1411 | } |
1412 | ||
1413 | strbuf_release(&buffer); | |
1414 | free(url); | |
1415 | return ret; | |
1416 | } | |
b8caac2b TRC |
1417 | |
1418 | /* Helpers for fetching packs */ | |
750ef425 | 1419 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 1420 | { |
750ef425 | 1421 | char *url, *tmp; |
b8caac2b | 1422 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 1423 | |
b8caac2b | 1424 | if (http_is_verbose) |
162eb5f8 | 1425 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
1426 | |
1427 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 1428 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
1429 | url = strbuf_detach(&buf, NULL); |
1430 | ||
750ef425 SP |
1431 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
1432 | tmp = strbuf_detach(&buf, NULL); | |
1433 | ||
70900eda | 1434 | if (http_get_file(url, tmp, NULL) != HTTP_OK) { |
82247e9b | 1435 | error("Unable to get pack index %s", url); |
750ef425 SP |
1436 | free(tmp); |
1437 | tmp = NULL; | |
1438 | } | |
b8caac2b | 1439 | |
b8caac2b | 1440 | free(url); |
750ef425 | 1441 | return tmp; |
b8caac2b TRC |
1442 | } |
1443 | ||
1444 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
1445 | unsigned char *sha1, const char *base_url) | |
1446 | { | |
1447 | struct packed_git *new_pack; | |
750ef425 SP |
1448 | char *tmp_idx = NULL; |
1449 | int ret; | |
b8caac2b | 1450 | |
750ef425 | 1451 | if (has_pack_index(sha1)) { |
8b9c2dd4 | 1452 | new_pack = parse_pack_index(sha1, sha1_pack_index_name(sha1)); |
750ef425 SP |
1453 | if (!new_pack) |
1454 | return -1; /* parse_pack_index() already issued error message */ | |
1455 | goto add_pack; | |
1456 | } | |
1457 | ||
1458 | tmp_idx = fetch_pack_index(sha1, base_url); | |
1459 | if (!tmp_idx) | |
b8caac2b TRC |
1460 | return -1; |
1461 | ||
750ef425 SP |
1462 | new_pack = parse_pack_index(sha1, tmp_idx); |
1463 | if (!new_pack) { | |
1464 | unlink(tmp_idx); | |
1465 | free(tmp_idx); | |
1466 | ||
b8caac2b | 1467 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
1468 | } |
1469 | ||
1470 | ret = verify_pack_index(new_pack); | |
1471 | if (!ret) { | |
1472 | close_pack_index(new_pack); | |
cb5add58 | 1473 | ret = finalize_object_file(tmp_idx, sha1_pack_index_name(sha1)); |
750ef425 SP |
1474 | } |
1475 | free(tmp_idx); | |
1476 | if (ret) | |
1477 | return -1; | |
1478 | ||
1479 | add_pack: | |
b8caac2b TRC |
1480 | new_pack->next = *packs_head; |
1481 | *packs_head = new_pack; | |
1482 | return 0; | |
1483 | } | |
1484 | ||
1485 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1486 | { | |
1bbcc224 | 1487 | struct http_get_options options = {0}; |
b8caac2b TRC |
1488 | int ret = 0, i = 0; |
1489 | char *url, *data; | |
1490 | struct strbuf buf = STRBUF_INIT; | |
1491 | unsigned char sha1[20]; | |
1492 | ||
1493 | end_url_with_slash(&buf, base_url); | |
1494 | strbuf_addstr(&buf, "objects/info/packs"); | |
1495 | url = strbuf_detach(&buf, NULL); | |
1496 | ||
1bbcc224 JK |
1497 | options.no_cache = 1; |
1498 | ret = http_get_strbuf(url, &buf, &options); | |
b8caac2b TRC |
1499 | if (ret != HTTP_OK) |
1500 | goto cleanup; | |
1501 | ||
1502 | data = buf.buf; | |
1503 | while (i < buf.len) { | |
1504 | switch (data[i]) { | |
1505 | case 'P': | |
1506 | i++; | |
1507 | if (i + 52 <= buf.len && | |
59556548 CC |
1508 | starts_with(data + i, " pack-") && |
1509 | starts_with(data + i + 46, ".pack\n")) { | |
b8caac2b TRC |
1510 | get_sha1_hex(data + i + 6, sha1); |
1511 | fetch_and_setup_pack_index(packs_head, sha1, | |
1512 | base_url); | |
1513 | i += 51; | |
1514 | break; | |
1515 | } | |
1516 | default: | |
1517 | while (i < buf.len && data[i] != '\n') | |
1518 | i++; | |
1519 | } | |
1520 | i++; | |
1521 | } | |
1522 | ||
1523 | cleanup: | |
1524 | free(url); | |
1525 | return ret; | |
1526 | } | |
2264dfa5 TRC |
1527 | |
1528 | void release_http_pack_request(struct http_pack_request *preq) | |
1529 | { | |
1530 | if (preq->packfile != NULL) { | |
1531 | fclose(preq->packfile); | |
1532 | preq->packfile = NULL; | |
2264dfa5 TRC |
1533 | } |
1534 | if (preq->range_header != NULL) { | |
1535 | curl_slist_free_all(preq->range_header); | |
1536 | preq->range_header = NULL; | |
1537 | } | |
1538 | preq->slot = NULL; | |
1539 | free(preq->url); | |
826aed50 | 1540 | free(preq); |
2264dfa5 TRC |
1541 | } |
1542 | ||
1543 | int finish_http_pack_request(struct http_pack_request *preq) | |
1544 | { | |
2264dfa5 | 1545 | struct packed_git **lst; |
021ab6f0 | 1546 | struct packed_git *p = preq->target; |
fe72d420 | 1547 | char *tmp_idx; |
d3180279 | 1548 | struct child_process ip = CHILD_PROCESS_INIT; |
fe72d420 | 1549 | const char *ip_argv[8]; |
2264dfa5 | 1550 | |
fe72d420 | 1551 | close_pack_index(p); |
2264dfa5 | 1552 | |
3065274c SP |
1553 | fclose(preq->packfile); |
1554 | preq->packfile = NULL; | |
2264dfa5 TRC |
1555 | |
1556 | lst = preq->lst; | |
021ab6f0 | 1557 | while (*lst != p) |
2264dfa5 TRC |
1558 | lst = &((*lst)->next); |
1559 | *lst = (*lst)->next; | |
1560 | ||
fe72d420 SP |
1561 | tmp_idx = xstrdup(preq->tmpfile); |
1562 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1563 | ".idx.temp"); | |
1564 | ||
1565 | ip_argv[0] = "index-pack"; | |
1566 | ip_argv[1] = "-o"; | |
1567 | ip_argv[2] = tmp_idx; | |
1568 | ip_argv[3] = preq->tmpfile; | |
1569 | ip_argv[4] = NULL; | |
1570 | ||
fe72d420 SP |
1571 | ip.argv = ip_argv; |
1572 | ip.git_cmd = 1; | |
1573 | ip.no_stdin = 1; | |
1574 | ip.no_stdout = 1; | |
1575 | ||
1576 | if (run_command(&ip)) { | |
1577 | unlink(preq->tmpfile); | |
1578 | unlink(tmp_idx); | |
1579 | free(tmp_idx); | |
2264dfa5 | 1580 | return -1; |
fe72d420 SP |
1581 | } |
1582 | ||
1583 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1584 | |
cb5add58 JH |
1585 | if (finalize_object_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1586 | || finalize_object_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
fe72d420 | 1587 | free(tmp_idx); |
2264dfa5 | 1588 | return -1; |
fe72d420 | 1589 | } |
2264dfa5 | 1590 | |
fe72d420 SP |
1591 | install_packed_git(p); |
1592 | free(tmp_idx); | |
2264dfa5 TRC |
1593 | return 0; |
1594 | } | |
1595 | ||
1596 | struct http_pack_request *new_http_pack_request( | |
1597 | struct packed_git *target, const char *base_url) | |
1598 | { | |
2264dfa5 TRC |
1599 | long prev_posn = 0; |
1600 | char range[RANGE_HEADER_SIZE]; | |
1601 | struct strbuf buf = STRBUF_INIT; | |
1602 | struct http_pack_request *preq; | |
1603 | ||
ec99c9a8 | 1604 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1605 | preq->target = target; |
2264dfa5 TRC |
1606 | |
1607 | end_url_with_slash(&buf, base_url); | |
1608 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1609 | sha1_to_hex(target->sha1)); | |
bb99190e | 1610 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1611 | |
90d05713 TRC |
1612 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1613 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1614 | preq->packfile = fopen(preq->tmpfile, "a"); |
1615 | if (!preq->packfile) { | |
1616 | error("Unable to open local file %s for pack", | |
1617 | preq->tmpfile); | |
1618 | goto abort; | |
1619 | } | |
1620 | ||
1621 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
1622 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
1623 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1624 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1625 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1626 | no_pragma_header); | |
1627 | ||
1628 | /* | |
1629 | * If there is data present from a previous transfer attempt, | |
1630 | * resume where it left off | |
1631 | */ | |
1632 | prev_posn = ftell(preq->packfile); | |
1633 | if (prev_posn>0) { | |
1634 | if (http_is_verbose) | |
1635 | fprintf(stderr, | |
1636 | "Resuming fetch of pack %s at byte %ld\n", | |
1637 | sha1_to_hex(target->sha1), prev_posn); | |
1638 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1639 | preq->range_header = curl_slist_append(NULL, range); | |
1640 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1641 | preq->range_header); | |
1642 | } | |
1643 | ||
1644 | return preq; | |
1645 | ||
1646 | abort: | |
bb99190e | 1647 | free(preq->url); |
5ae9ebfd | 1648 | free(preq); |
2264dfa5 TRC |
1649 | return NULL; |
1650 | } | |
5424bc55 TRC |
1651 | |
1652 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1653 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1654 | void *data) |
1655 | { | |
1656 | unsigned char expn[4096]; | |
1657 | size_t size = eltsize * nmemb; | |
1658 | int posn = 0; | |
1659 | struct http_object_request *freq = | |
1660 | (struct http_object_request *)data; | |
1661 | do { | |
1662 | ssize_t retval = xwrite(freq->localfile, | |
1663 | (char *) ptr + posn, size - posn); | |
1664 | if (retval < 0) | |
1665 | return posn; | |
1666 | posn += retval; | |
1667 | } while (posn < size); | |
1668 | ||
1669 | freq->stream.avail_in = size; | |
a04ff3ec | 1670 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1671 | do { |
1672 | freq->stream.next_out = expn; | |
1673 | freq->stream.avail_out = sizeof(expn); | |
1674 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1675 | git_SHA1_Update(&freq->c, expn, | |
1676 | sizeof(expn) - freq->stream.avail_out); | |
1677 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
5424bc55 TRC |
1678 | return size; |
1679 | } | |
1680 | ||
1681 | struct http_object_request *new_http_object_request(const char *base_url, | |
1682 | unsigned char *sha1) | |
1683 | { | |
1684 | char *hex = sha1_to_hex(sha1); | |
30d6c6ea | 1685 | const char *filename; |
5424bc55 | 1686 | char prevfile[PATH_MAX]; |
5424bc55 | 1687 | int prevlocal; |
a04ff3ec | 1688 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1689 | ssize_t prev_read = 0; |
1690 | long prev_posn = 0; | |
1691 | char range[RANGE_HEADER_SIZE]; | |
1692 | struct curl_slist *range_header = NULL; | |
1693 | struct http_object_request *freq; | |
1694 | ||
ec99c9a8 | 1695 | freq = xcalloc(1, sizeof(*freq)); |
5424bc55 TRC |
1696 | hashcpy(freq->sha1, sha1); |
1697 | freq->localfile = -1; | |
1698 | ||
1699 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1700 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1701 | "%s.temp", filename); | |
1702 | ||
1703 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1704 | unlink_or_warn(prevfile); | |
1705 | rename(freq->tmpfile, prevfile); | |
1706 | unlink_or_warn(freq->tmpfile); | |
1707 | ||
1708 | if (freq->localfile != -1) | |
1709 | error("fd leakage in start: %d", freq->localfile); | |
1710 | freq->localfile = open(freq->tmpfile, | |
1711 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1712 | /* | |
1713 | * This could have failed due to the "lazy directory creation"; | |
1714 | * try to mkdir the last path component. | |
1715 | */ | |
1716 | if (freq->localfile < 0 && errno == ENOENT) { | |
1717 | char *dir = strrchr(freq->tmpfile, '/'); | |
1718 | if (dir) { | |
1719 | *dir = 0; | |
1720 | mkdir(freq->tmpfile, 0777); | |
1721 | *dir = '/'; | |
1722 | } | |
1723 | freq->localfile = open(freq->tmpfile, | |
1724 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1725 | } | |
1726 | ||
1727 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1728 | error("Couldn't create temporary file %s: %s", |
1729 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1730 | goto abort; |
1731 | } | |
1732 | ||
5424bc55 TRC |
1733 | git_inflate_init(&freq->stream); |
1734 | ||
1735 | git_SHA1_Init(&freq->c); | |
1736 | ||
bb99190e | 1737 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1738 | |
1739 | /* | |
1740 | * If a previous temp file is present, process what was already | |
1741 | * fetched. | |
1742 | */ | |
1743 | prevlocal = open(prevfile, O_RDONLY); | |
1744 | if (prevlocal != -1) { | |
1745 | do { | |
1746 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1747 | if (prev_read>0) { | |
1748 | if (fwrite_sha1_file(prev_buf, | |
1749 | 1, | |
1750 | prev_read, | |
1751 | freq) == prev_read) { | |
1752 | prev_posn += prev_read; | |
1753 | } else { | |
1754 | prev_read = -1; | |
1755 | } | |
1756 | } | |
1757 | } while (prev_read > 0); | |
1758 | close(prevlocal); | |
1759 | } | |
1760 | unlink_or_warn(prevfile); | |
1761 | ||
1762 | /* | |
1763 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1764 | * file; also rewind to the beginning of the local file. | |
1765 | */ | |
1766 | if (prev_read == -1) { | |
1767 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1768 | git_inflate_init(&freq->stream); | |
1769 | git_SHA1_Init(&freq->c); | |
1770 | if (prev_posn>0) { | |
1771 | prev_posn = 0; | |
1772 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1773 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1774 | error("Couldn't truncate temporary file %s: %s", |
1775 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1776 | goto abort; |
1777 | } | |
5424bc55 TRC |
1778 | } |
1779 | } | |
1780 | ||
1781 | freq->slot = get_active_slot(); | |
1782 | ||
1783 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1784 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1785 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1786 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1787 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1788 | ||
1789 | /* | |
1790 | * If we have successfully processed data from a previous fetch | |
1791 | * attempt, only fetch the data we don't already have. | |
1792 | */ | |
1793 | if (prev_posn>0) { | |
1794 | if (http_is_verbose) | |
1795 | fprintf(stderr, | |
1796 | "Resuming fetch of object %s at byte %ld\n", | |
1797 | hex, prev_posn); | |
1798 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1799 | range_header = curl_slist_append(range_header, range); | |
1800 | curl_easy_setopt(freq->slot->curl, | |
1801 | CURLOPT_HTTPHEADER, range_header); | |
1802 | } | |
1803 | ||
1804 | return freq; | |
1805 | ||
5424bc55 | 1806 | abort: |
bb99190e | 1807 | free(freq->url); |
5424bc55 TRC |
1808 | free(freq); |
1809 | return NULL; | |
1810 | } | |
1811 | ||
1812 | void process_http_object_request(struct http_object_request *freq) | |
1813 | { | |
1814 | if (freq->slot == NULL) | |
1815 | return; | |
1816 | freq->curl_result = freq->slot->curl_result; | |
1817 | freq->http_code = freq->slot->http_code; | |
1818 | freq->slot = NULL; | |
1819 | } | |
1820 | ||
1821 | int finish_http_object_request(struct http_object_request *freq) | |
1822 | { | |
1823 | struct stat st; | |
1824 | ||
1825 | close(freq->localfile); | |
1826 | freq->localfile = -1; | |
1827 | ||
1828 | process_http_object_request(freq); | |
1829 | ||
1830 | if (freq->http_code == 416) { | |
bd757c18 | 1831 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1832 | } else if (freq->curl_result != CURLE_OK) { |
1833 | if (stat(freq->tmpfile, &st) == 0) | |
1834 | if (st.st_size == 0) | |
1835 | unlink_or_warn(freq->tmpfile); | |
1836 | return -1; | |
1837 | } | |
1838 | ||
1839 | git_inflate_end(&freq->stream); | |
1840 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1841 | if (freq->zret != Z_STREAM_END) { | |
1842 | unlink_or_warn(freq->tmpfile); | |
1843 | return -1; | |
1844 | } | |
1845 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1846 | unlink_or_warn(freq->tmpfile); | |
1847 | return -1; | |
1848 | } | |
1849 | freq->rename = | |
cb5add58 | 1850 | finalize_object_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1851 | |
1852 | return freq->rename; | |
1853 | } | |
1854 | ||
1855 | void abort_http_object_request(struct http_object_request *freq) | |
1856 | { | |
1857 | unlink_or_warn(freq->tmpfile); | |
1858 | ||
1859 | release_http_object_request(freq); | |
1860 | } | |
1861 | ||
1862 | void release_http_object_request(struct http_object_request *freq) | |
1863 | { | |
1864 | if (freq->localfile != -1) { | |
1865 | close(freq->localfile); | |
1866 | freq->localfile = -1; | |
1867 | } | |
1868 | if (freq->url != NULL) { | |
1869 | free(freq->url); | |
1870 | freq->url = NULL; | |
1871 | } | |
4b9fa0e3 TRC |
1872 | if (freq->slot != NULL) { |
1873 | freq->slot->callback_func = NULL; | |
1874 | freq->slot->callback_data = NULL; | |
1875 | release_active_slot(freq->slot); | |
1876 | freq->slot = NULL; | |
1877 | } | |
5424bc55 | 1878 | } |