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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 | |
74c682d3 | 14 | static struct trace_key trace_curl = TRACE_KEY_INIT(CURL); |
c915f11e EW |
15 | #if LIBCURL_VERSION_NUM >= 0x070a08 |
16 | long int git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER; | |
17 | #else | |
18 | long int git_curl_ipresolve; | |
19 | #endif | |
4251ccbd | 20 | int active_requests; |
e9176745 | 21 | int http_is_verbose; |
de1a2fdd | 22 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 23 | |
b8ac9230 MS |
24 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
25 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
26 | #endif | |
27 | ||
ad75ebe5 TRC |
28 | static int min_curl_sessions = 1; |
29 | static int curl_session_count; | |
29508e1e | 30 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
31 | static int max_requests = -1; |
32 | static CURLM *curlm; | |
29508e1e NH |
33 | #endif |
34 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 35 | static CURL *curl_default; |
29508e1e | 36 | #endif |
5424bc55 TRC |
37 | |
38 | #define PREV_BUF_SIZE 4096 | |
5424bc55 | 39 | |
29508e1e NH |
40 | char curl_errorstr[CURL_ERROR_SIZE]; |
41 | ||
cc3530e8 | 42 | static int curl_ssl_verify = -1; |
4bc444eb | 43 | static int curl_ssl_try; |
4251ccbd | 44 | static const char *ssl_cert; |
f6f2a9e4 | 45 | static const char *ssl_cipherlist; |
01861cb7 EP |
46 | static const char *ssl_version; |
47 | static struct { | |
48 | const char *name; | |
49 | long ssl_version; | |
50 | } sslversions[] = { | |
51 | { "sslv2", CURL_SSLVERSION_SSLv2 }, | |
52 | { "sslv3", CURL_SSLVERSION_SSLv3 }, | |
53 | { "tlsv1", CURL_SSLVERSION_TLSv1 }, | |
54 | #if LIBCURL_VERSION_NUM >= 0x072200 | |
55 | { "tlsv1.0", CURL_SSLVERSION_TLSv1_0 }, | |
56 | { "tlsv1.1", CURL_SSLVERSION_TLSv1_1 }, | |
57 | { "tlsv1.2", CURL_SSLVERSION_TLSv1_2 }, | |
58 | #endif | |
59 | }; | |
ef52aafa | 60 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 61 | static const char *ssl_key; |
29508e1e NH |
62 | #endif |
63 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 64 | static const char *ssl_capath; |
29508e1e | 65 | #endif |
aeff8a61 CE |
66 | #if LIBCURL_VERSION_NUM >= 0x072c00 |
67 | static const char *ssl_pinnedkey; | |
68 | #endif | |
4251ccbd | 69 | static const char *ssl_cainfo; |
cc3530e8 MH |
70 | static long curl_low_speed_limit = -1; |
71 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
72 | static int curl_ftp_no_epsv; |
73 | static const char *curl_http_proxy; | |
d445fda4 | 74 | static const char *curl_no_proxy; |
ef976395 KF |
75 | static const char *http_proxy_authmethod; |
76 | static struct { | |
77 | const char *name; | |
78 | long curlauth_param; | |
79 | } proxy_authmethods[] = { | |
80 | { "basic", CURLAUTH_BASIC }, | |
81 | { "digest", CURLAUTH_DIGEST }, | |
82 | { "negotiate", CURLAUTH_GSSNEGOTIATE }, | |
83 | { "ntlm", CURLAUTH_NTLM }, | |
84 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY | |
85 | { "anyauth", CURLAUTH_ANY }, | |
86 | #endif | |
87 | /* | |
88 | * CURLAUTH_DIGEST_IE has no corresponding command-line option in | |
89 | * curl(1) and is not included in CURLAUTH_ANY, so we leave it out | |
90 | * here, too | |
91 | */ | |
92 | }; | |
372370f1 KF |
93 | static struct credential proxy_auth = CREDENTIAL_INIT; |
94 | static const char *curl_proxyuserpwd; | |
bcfb95dd | 95 | static const char *curl_cookie_file; |
912b2acf | 96 | static int curl_save_cookies; |
2501aff8 | 97 | struct credential http_auth = CREDENTIAL_INIT; |
a4ddbc33 | 98 | static int http_proactive_auth; |
b1d1058c | 99 | static const char *user_agent; |
121061f6 | 100 | static int curl_empty_auth; |
29508e1e | 101 | |
30dd9163 ML |
102 | #if LIBCURL_VERSION_NUM >= 0x071700 |
103 | /* Use CURLOPT_KEYPASSWD as is */ | |
104 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
105 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
106 | #else | |
107 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
108 | #endif | |
109 | ||
148bb6a7 | 110 | static struct credential cert_auth = CREDENTIAL_INIT; |
30dd9163 | 111 | static int ssl_cert_password_required; |
4dbe6646 | 112 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
113 | static unsigned long http_auth_methods = CURLAUTH_ANY; | |
114 | #endif | |
30dd9163 | 115 | |
cc3530e8 | 116 | static struct curl_slist *pragma_header; |
5424bc55 | 117 | static struct curl_slist *no_pragma_header; |
8cb01e2f | 118 | static struct curl_slist *extra_http_headers; |
e9176745 | 119 | |
4251ccbd | 120 | static struct active_request_slot *active_queue_head; |
29508e1e | 121 | |
f18604bb YE |
122 | static char *cached_accept_language; |
123 | ||
a04ff3ec | 124 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
125 | { |
126 | size_t size = eltsize * nmemb; | |
f444e528 JH |
127 | struct buffer *buffer = buffer_; |
128 | ||
028c2976 MH |
129 | if (size > buffer->buf.len - buffer->posn) |
130 | size = buffer->buf.len - buffer->posn; | |
131 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 132 | buffer->posn += size; |
028c2976 | 133 | |
29508e1e NH |
134 | return size; |
135 | } | |
136 | ||
3944ba0c MS |
137 | #ifndef NO_CURL_IOCTL |
138 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
139 | { | |
140 | struct buffer *buffer = clientp; | |
141 | ||
142 | switch (cmd) { | |
143 | case CURLIOCMD_NOP: | |
144 | return CURLIOE_OK; | |
145 | ||
146 | case CURLIOCMD_RESTARTREAD: | |
147 | buffer->posn = 0; | |
148 | return CURLIOE_OK; | |
149 | ||
150 | default: | |
151 | return CURLIOE_UNKNOWNCMD; | |
152 | } | |
153 | } | |
154 | #endif | |
155 | ||
a04ff3ec | 156 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
157 | { |
158 | size_t size = eltsize * nmemb; | |
f444e528 JH |
159 | struct strbuf *buffer = buffer_; |
160 | ||
028c2976 | 161 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
162 | return size; |
163 | } | |
164 | ||
a04ff3ec | 165 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 166 | { |
29508e1e NH |
167 | return eltsize * nmemb; |
168 | } | |
169 | ||
b90a3d7b JH |
170 | static void closedown_active_slot(struct active_request_slot *slot) |
171 | { | |
172 | active_requests--; | |
173 | slot->in_use = 0; | |
174 | } | |
175 | ||
176 | static void finish_active_slot(struct active_request_slot *slot) | |
177 | { | |
178 | closedown_active_slot(slot); | |
179 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); | |
180 | ||
181 | if (slot->finished != NULL) | |
182 | (*slot->finished) = 1; | |
183 | ||
184 | /* Store slot results so they can be read after the slot is reused */ | |
185 | if (slot->results != NULL) { | |
186 | slot->results->curl_result = slot->curl_result; | |
187 | slot->results->http_code = slot->http_code; | |
188 | #if LIBCURL_VERSION_NUM >= 0x070a08 | |
189 | curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL, | |
190 | &slot->results->auth_avail); | |
191 | #else | |
192 | slot->results->auth_avail = 0; | |
193 | #endif | |
372370f1 KF |
194 | |
195 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CONNECTCODE, | |
196 | &slot->results->http_connectcode); | |
b90a3d7b JH |
197 | } |
198 | ||
199 | /* Run callback if appropriate */ | |
200 | if (slot->callback_func != NULL) | |
201 | slot->callback_func(slot->callback_data); | |
202 | } | |
203 | ||
d8b6b84d EW |
204 | static void xmulti_remove_handle(struct active_request_slot *slot) |
205 | { | |
206 | #ifdef USE_CURL_MULTI | |
207 | curl_multi_remove_handle(curlm, slot->curl); | |
208 | #endif | |
209 | } | |
210 | ||
29508e1e NH |
211 | #ifdef USE_CURL_MULTI |
212 | static void process_curl_messages(void) | |
213 | { | |
214 | int num_messages; | |
215 | struct active_request_slot *slot; | |
216 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
217 | ||
218 | while (curl_message != NULL) { | |
219 | if (curl_message->msg == CURLMSG_DONE) { | |
220 | int curl_result = curl_message->data.result; | |
221 | slot = active_queue_head; | |
222 | while (slot != NULL && | |
223 | slot->curl != curl_message->easy_handle) | |
224 | slot = slot->next; | |
225 | if (slot != NULL) { | |
d8b6b84d | 226 | xmulti_remove_handle(slot); |
29508e1e NH |
227 | slot->curl_result = curl_result; |
228 | finish_active_slot(slot); | |
229 | } else { | |
230 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
231 | } | |
232 | } else { | |
233 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
234 | (int)curl_message->msg); | |
235 | } | |
236 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
237 | } | |
238 | } | |
239 | #endif | |
240 | ||
ef90d6d4 | 241 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
242 | { |
243 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 244 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
245 | return 0; |
246 | } | |
f6f2a9e4 LKS |
247 | if (!strcmp("http.sslcipherlist", var)) |
248 | return git_config_string(&ssl_cipherlist, var, value); | |
01861cb7 EP |
249 | if (!strcmp("http.sslversion", var)) |
250 | return git_config_string(&ssl_version, var, value); | |
7059cd99 JH |
251 | if (!strcmp("http.sslcert", var)) |
252 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 253 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
254 | if (!strcmp("http.sslkey", var)) |
255 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
256 | #endif |
257 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 258 | if (!strcmp("http.sslcapath", var)) |
bf9acba2 | 259 | return git_config_pathname(&ssl_capath, var, value); |
29508e1e | 260 | #endif |
7059cd99 | 261 | if (!strcmp("http.sslcainfo", var)) |
bf9acba2 | 262 | return git_config_pathname(&ssl_cainfo, var, value); |
754ae192 | 263 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
3f4ccd2b | 264 | ssl_cert_password_required = git_config_bool(var, value); |
754ae192 ML |
265 | return 0; |
266 | } | |
4bc444eb MV |
267 | if (!strcmp("http.ssltry", var)) { |
268 | curl_ssl_try = git_config_bool(var, value); | |
269 | return 0; | |
270 | } | |
ad75ebe5 TRC |
271 | if (!strcmp("http.minsessions", var)) { |
272 | min_curl_sessions = git_config_int(var, value); | |
273 | #ifndef USE_CURL_MULTI | |
274 | if (min_curl_sessions > 1) | |
275 | min_curl_sessions = 1; | |
276 | #endif | |
277 | return 0; | |
278 | } | |
a6080a0a | 279 | #ifdef USE_CURL_MULTI |
29508e1e | 280 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 281 | max_requests = git_config_int(var, value); |
29508e1e NH |
282 | return 0; |
283 | } | |
284 | #endif | |
29508e1e | 285 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 286 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
287 | return 0; |
288 | } | |
289 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 290 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
291 | return 0; |
292 | } | |
293 | ||
3ea099d4 SK |
294 | if (!strcmp("http.noepsv", var)) { |
295 | curl_ftp_no_epsv = git_config_bool(var, value); | |
296 | return 0; | |
297 | } | |
7059cd99 JH |
298 | if (!strcmp("http.proxy", var)) |
299 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 300 | |
ef976395 KF |
301 | if (!strcmp("http.proxyauthmethod", var)) |
302 | return git_config_string(&http_proxy_authmethod, var, value); | |
303 | ||
bcfb95dd | 304 | if (!strcmp("http.cookiefile", var)) |
e5a39ad8 | 305 | return git_config_pathname(&curl_cookie_file, var, value); |
912b2acf DB |
306 | if (!strcmp("http.savecookies", var)) { |
307 | curl_save_cookies = git_config_bool(var, value); | |
308 | return 0; | |
309 | } | |
bcfb95dd | 310 | |
de1a2fdd SP |
311 | if (!strcmp("http.postbuffer", var)) { |
312 | http_post_buffer = git_config_int(var, value); | |
313 | if (http_post_buffer < LARGE_PACKET_MAX) | |
314 | http_post_buffer = LARGE_PACKET_MAX; | |
315 | return 0; | |
316 | } | |
317 | ||
b1d1058c SO |
318 | if (!strcmp("http.useragent", var)) |
319 | return git_config_string(&user_agent, var, value); | |
320 | ||
121061f6 | 321 | if (!strcmp("http.emptyauth", var)) { |
322 | curl_empty_auth = git_config_bool(var, value); | |
323 | return 0; | |
324 | } | |
325 | ||
aeff8a61 CE |
326 | if (!strcmp("http.pinnedpubkey", var)) { |
327 | #if LIBCURL_VERSION_NUM >= 0x072c00 | |
328 | return git_config_pathname(&ssl_pinnedkey, var, value); | |
329 | #else | |
330 | warning(_("Public key pinning not supported with cURL < 7.44.0")); | |
331 | return 0; | |
332 | #endif | |
333 | } | |
e79112d2 | 334 | |
8cb01e2f JS |
335 | if (!strcmp("http.extraheader", var)) { |
336 | if (!value) { | |
337 | return config_error_nonbool(var); | |
338 | } else if (!*value) { | |
339 | curl_slist_free_all(extra_http_headers); | |
340 | extra_http_headers = NULL; | |
341 | } else { | |
342 | extra_http_headers = | |
343 | curl_slist_append(extra_http_headers, value); | |
344 | } | |
345 | return 0; | |
346 | } | |
347 | ||
29508e1e | 348 | /* Fall back on the default ones */ |
ef90d6d4 | 349 | return git_default_config(var, value, cb); |
29508e1e NH |
350 | } |
351 | ||
c33976cb JH |
352 | static void init_curl_http_auth(CURL *result) |
353 | { | |
5275c308 | 354 | if (!http_auth.username || !*http_auth.username) { |
121061f6 | 355 | if (curl_empty_auth) |
356 | curl_easy_setopt(result, CURLOPT_USERPWD, ":"); | |
6f4c347c | 357 | return; |
121061f6 | 358 | } |
6f4c347c JK |
359 | |
360 | credential_fill(&http_auth); | |
361 | ||
362 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
363 | curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username); | |
364 | curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password); | |
365 | #else | |
366 | { | |
aa0834a0 | 367 | static struct strbuf up = STRBUF_INIT; |
a94cf2cb BC |
368 | /* |
369 | * Note that we assume we only ever have a single set of | |
370 | * credentials in a given program run, so we do not have | |
371 | * to worry about updating this buffer, only setting its | |
372 | * initial value. | |
373 | */ | |
374 | if (!up.len) | |
375 | strbuf_addf(&up, "%s:%s", | |
376 | http_auth.username, http_auth.password); | |
aa0834a0 | 377 | curl_easy_setopt(result, CURLOPT_USERPWD, up.buf); |
c33976cb | 378 | } |
6f4c347c | 379 | #endif |
c33976cb JH |
380 | } |
381 | ||
ef976395 KF |
382 | /* *var must be free-able */ |
383 | static void var_override(const char **var, char *value) | |
384 | { | |
385 | if (value) { | |
386 | free((void *)*var); | |
387 | *var = xstrdup(value); | |
388 | } | |
389 | } | |
390 | ||
372370f1 KF |
391 | static void set_proxyauth_name_password(CURL *result) |
392 | { | |
393 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
394 | curl_easy_setopt(result, CURLOPT_PROXYUSERNAME, | |
395 | proxy_auth.username); | |
396 | curl_easy_setopt(result, CURLOPT_PROXYPASSWORD, | |
397 | proxy_auth.password); | |
398 | #else | |
399 | struct strbuf s = STRBUF_INIT; | |
400 | ||
401 | strbuf_addstr_urlencode(&s, proxy_auth.username, 1); | |
402 | strbuf_addch(&s, ':'); | |
403 | strbuf_addstr_urlencode(&s, proxy_auth.password, 1); | |
404 | curl_proxyuserpwd = strbuf_detach(&s, NULL); | |
405 | curl_easy_setopt(result, CURLOPT_PROXYUSERPWD, curl_proxyuserpwd); | |
406 | #endif | |
407 | } | |
408 | ||
ef976395 KF |
409 | static void init_curl_proxy_auth(CURL *result) |
410 | { | |
372370f1 KF |
411 | if (proxy_auth.username) { |
412 | if (!proxy_auth.password) | |
413 | credential_fill(&proxy_auth); | |
414 | set_proxyauth_name_password(result); | |
415 | } | |
416 | ||
ef976395 KF |
417 | var_override(&http_proxy_authmethod, getenv("GIT_HTTP_PROXY_AUTHMETHOD")); |
418 | ||
419 | #if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */ | |
420 | if (http_proxy_authmethod) { | |
421 | int i; | |
422 | for (i = 0; i < ARRAY_SIZE(proxy_authmethods); i++) { | |
423 | if (!strcmp(http_proxy_authmethod, proxy_authmethods[i].name)) { | |
424 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, | |
425 | proxy_authmethods[i].curlauth_param); | |
426 | break; | |
427 | } | |
428 | } | |
429 | if (i == ARRAY_SIZE(proxy_authmethods)) { | |
430 | warning("unsupported proxy authentication method %s: using anyauth", | |
431 | http_proxy_authmethod); | |
432 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); | |
433 | } | |
434 | } | |
435 | else | |
436 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); | |
437 | #endif | |
438 | } | |
439 | ||
30dd9163 ML |
440 | static int has_cert_password(void) |
441 | { | |
30dd9163 ML |
442 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
443 | return 0; | |
148bb6a7 JK |
444 | if (!cert_auth.password) { |
445 | cert_auth.protocol = xstrdup("cert"); | |
75e9a405 | 446 | cert_auth.username = xstrdup(""); |
148bb6a7 JK |
447 | cert_auth.path = xstrdup(ssl_cert); |
448 | credential_fill(&cert_auth); | |
449 | } | |
450 | return 1; | |
30dd9163 ML |
451 | } |
452 | ||
47ce1153 JK |
453 | #if LIBCURL_VERSION_NUM >= 0x071900 |
454 | static void set_curl_keepalive(CURL *c) | |
455 | { | |
456 | curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1); | |
457 | } | |
458 | ||
459 | #elif LIBCURL_VERSION_NUM >= 0x071000 | |
a15d069a EW |
460 | static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type) |
461 | { | |
462 | int ka = 1; | |
463 | int rc; | |
464 | socklen_t len = (socklen_t)sizeof(ka); | |
465 | ||
466 | if (type != CURLSOCKTYPE_IPCXN) | |
467 | return 0; | |
468 | ||
469 | rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len); | |
470 | if (rc < 0) | |
d2e255ee | 471 | warning_errno("unable to set SO_KEEPALIVE on socket"); |
a15d069a EW |
472 | |
473 | return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */ | |
474 | } | |
475 | ||
47ce1153 JK |
476 | static void set_curl_keepalive(CURL *c) |
477 | { | |
478 | curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback); | |
479 | } | |
480 | ||
481 | #else | |
482 | static void set_curl_keepalive(CURL *c) | |
483 | { | |
484 | /* not supported on older curl versions */ | |
485 | } | |
486 | #endif | |
487 | ||
74c682d3 EP |
488 | static void redact_sensitive_header(struct strbuf *header) |
489 | { | |
490 | const char *sensitive_header; | |
491 | ||
492 | if (skip_prefix(header->buf, "Authorization:", &sensitive_header) || | |
493 | skip_prefix(header->buf, "Proxy-Authorization:", &sensitive_header)) { | |
494 | /* The first token is the type, which is OK to log */ | |
495 | while (isspace(*sensitive_header)) | |
496 | sensitive_header++; | |
497 | while (*sensitive_header && !isspace(*sensitive_header)) | |
498 | sensitive_header++; | |
499 | /* Everything else is opaque and possibly sensitive */ | |
500 | strbuf_setlen(header, sensitive_header - header->buf); | |
501 | strbuf_addstr(header, " <redacted>"); | |
502 | } | |
503 | } | |
504 | ||
505 | static void curl_dump_header(const char *text, unsigned char *ptr, size_t size, int hide_sensitive_header) | |
506 | { | |
507 | struct strbuf out = STRBUF_INIT; | |
508 | struct strbuf **headers, **header; | |
509 | ||
510 | strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n", | |
511 | text, (long)size, (long)size); | |
512 | trace_strbuf(&trace_curl, &out); | |
513 | strbuf_reset(&out); | |
514 | strbuf_add(&out, ptr, size); | |
515 | headers = strbuf_split_max(&out, '\n', 0); | |
516 | ||
517 | for (header = headers; *header; header++) { | |
518 | if (hide_sensitive_header) | |
519 | redact_sensitive_header(*header); | |
520 | strbuf_insert((*header), 0, text, strlen(text)); | |
521 | strbuf_insert((*header), strlen(text), ": ", 2); | |
522 | strbuf_rtrim((*header)); | |
523 | strbuf_addch((*header), '\n'); | |
524 | trace_strbuf(&trace_curl, (*header)); | |
525 | } | |
526 | strbuf_list_free(headers); | |
527 | strbuf_release(&out); | |
528 | } | |
529 | ||
530 | static void curl_dump_data(const char *text, unsigned char *ptr, size_t size) | |
531 | { | |
532 | size_t i; | |
533 | struct strbuf out = STRBUF_INIT; | |
534 | unsigned int width = 60; | |
535 | ||
536 | strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n", | |
537 | text, (long)size, (long)size); | |
538 | trace_strbuf(&trace_curl, &out); | |
539 | ||
540 | for (i = 0; i < size; i += width) { | |
541 | size_t w; | |
542 | ||
543 | strbuf_reset(&out); | |
544 | strbuf_addf(&out, "%s: ", text); | |
545 | for (w = 0; (w < width) && (i + w < size); w++) { | |
546 | unsigned char ch = ptr[i + w]; | |
547 | ||
548 | strbuf_addch(&out, | |
549 | (ch >= 0x20) && (ch < 0x80) | |
550 | ? ch : '.'); | |
551 | } | |
552 | strbuf_addch(&out, '\n'); | |
553 | trace_strbuf(&trace_curl, &out); | |
554 | } | |
555 | strbuf_release(&out); | |
556 | } | |
557 | ||
558 | static int curl_trace(CURL *handle, curl_infotype type, char *data, size_t size, void *userp) | |
559 | { | |
560 | const char *text; | |
561 | enum { NO_FILTER = 0, DO_FILTER = 1 }; | |
562 | ||
563 | switch (type) { | |
564 | case CURLINFO_TEXT: | |
565 | trace_printf_key(&trace_curl, "== Info: %s", data); | |
566 | default: /* we ignore unknown types by default */ | |
567 | return 0; | |
568 | ||
569 | case CURLINFO_HEADER_OUT: | |
570 | text = "=> Send header"; | |
571 | curl_dump_header(text, (unsigned char *)data, size, DO_FILTER); | |
572 | break; | |
573 | case CURLINFO_DATA_OUT: | |
574 | text = "=> Send data"; | |
575 | curl_dump_data(text, (unsigned char *)data, size); | |
576 | break; | |
577 | case CURLINFO_SSL_DATA_OUT: | |
578 | text = "=> Send SSL data"; | |
579 | curl_dump_data(text, (unsigned char *)data, size); | |
580 | break; | |
581 | case CURLINFO_HEADER_IN: | |
582 | text = "<= Recv header"; | |
583 | curl_dump_header(text, (unsigned char *)data, size, NO_FILTER); | |
584 | break; | |
585 | case CURLINFO_DATA_IN: | |
586 | text = "<= Recv data"; | |
587 | curl_dump_data(text, (unsigned char *)data, size); | |
588 | break; | |
589 | case CURLINFO_SSL_DATA_IN: | |
590 | text = "<= Recv SSL data"; | |
591 | curl_dump_data(text, (unsigned char *)data, size); | |
592 | break; | |
593 | } | |
594 | return 0; | |
595 | } | |
596 | ||
597 | void setup_curl_trace(CURL *handle) | |
598 | { | |
599 | if (!trace_want(&trace_curl)) | |
600 | return; | |
601 | curl_easy_setopt(handle, CURLOPT_VERBOSE, 1L); | |
602 | curl_easy_setopt(handle, CURLOPT_DEBUGFUNCTION, curl_trace); | |
603 | curl_easy_setopt(handle, CURLOPT_DEBUGDATA, NULL); | |
604 | } | |
605 | ||
606 | ||
4251ccbd | 607 | static CURL *get_curl_handle(void) |
11979b98 | 608 | { |
4251ccbd | 609 | CURL *result = curl_easy_init(); |
f4113cac | 610 | long allowed_protocols = 0; |
11979b98 | 611 | |
faa3807c BR |
612 | if (!result) |
613 | die("curl_easy_init failed"); | |
614 | ||
a5ccc597 JH |
615 | if (!curl_ssl_verify) { |
616 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
617 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
618 | } else { | |
619 | /* Verify authenticity of the peer's certificate */ | |
620 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
621 | /* The name in the cert must match whom we tried to connect */ | |
622 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
623 | } | |
624 | ||
11979b98 JH |
625 | #if LIBCURL_VERSION_NUM >= 0x070907 |
626 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
627 | #endif | |
b8ac9230 | 628 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 629 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 630 | #endif |
11979b98 | 631 | |
a4ddbc33 JK |
632 | if (http_proactive_auth) |
633 | init_curl_http_auth(result); | |
634 | ||
01861cb7 EP |
635 | if (getenv("GIT_SSL_VERSION")) |
636 | ssl_version = getenv("GIT_SSL_VERSION"); | |
637 | if (ssl_version && *ssl_version) { | |
638 | int i; | |
639 | for (i = 0; i < ARRAY_SIZE(sslversions); i++) { | |
640 | if (!strcmp(ssl_version, sslversions[i].name)) { | |
641 | curl_easy_setopt(result, CURLOPT_SSLVERSION, | |
642 | sslversions[i].ssl_version); | |
643 | break; | |
644 | } | |
645 | } | |
646 | if (i == ARRAY_SIZE(sslversions)) | |
647 | warning("unsupported ssl version %s: using default", | |
648 | ssl_version); | |
649 | } | |
650 | ||
f6f2a9e4 LKS |
651 | if (getenv("GIT_SSL_CIPHER_LIST")) |
652 | ssl_cipherlist = getenv("GIT_SSL_CIPHER_LIST"); | |
f6f2a9e4 LKS |
653 | if (ssl_cipherlist != NULL && *ssl_cipherlist) |
654 | curl_easy_setopt(result, CURLOPT_SSL_CIPHER_LIST, | |
655 | ssl_cipherlist); | |
656 | ||
11979b98 JH |
657 | if (ssl_cert != NULL) |
658 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 | 659 | if (has_cert_password()) |
148bb6a7 | 660 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
ef52aafa | 661 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
662 | if (ssl_key != NULL) |
663 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
664 | #endif | |
665 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
666 | if (ssl_capath != NULL) | |
667 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
aeff8a61 CE |
668 | #endif |
669 | #if LIBCURL_VERSION_NUM >= 0x072c00 | |
670 | if (ssl_pinnedkey != NULL) | |
671 | curl_easy_setopt(result, CURLOPT_PINNEDPUBLICKEY, ssl_pinnedkey); | |
11979b98 JH |
672 | #endif |
673 | if (ssl_cainfo != NULL) | |
674 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
11979b98 JH |
675 | |
676 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
677 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
678 | curl_low_speed_limit); | |
679 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
680 | curl_low_speed_time); | |
681 | } | |
682 | ||
683 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
b2581164 | 684 | curl_easy_setopt(result, CURLOPT_MAXREDIRS, 20); |
311e2ea0 TRC |
685 | #if LIBCURL_VERSION_NUM >= 0x071301 |
686 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
687 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
688 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
689 | #endif | |
f4113cac BB |
690 | #if LIBCURL_VERSION_NUM >= 0x071304 |
691 | if (is_transport_allowed("http")) | |
692 | allowed_protocols |= CURLPROTO_HTTP; | |
693 | if (is_transport_allowed("https")) | |
694 | allowed_protocols |= CURLPROTO_HTTPS; | |
695 | if (is_transport_allowed("ftp")) | |
696 | allowed_protocols |= CURLPROTO_FTP; | |
697 | if (is_transport_allowed("ftps")) | |
698 | allowed_protocols |= CURLPROTO_FTPS; | |
699 | curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS, allowed_protocols); | |
700 | #else | |
701 | if (transport_restrict_protocols()) | |
702 | warning("protocol restrictions not applied to curl redirects because\n" | |
703 | "your curl version is too old (>= 7.19.4)"); | |
704 | #endif | |
7982d74e | 705 | if (getenv("GIT_CURL_VERBOSE")) |
74c682d3 EP |
706 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1L); |
707 | setup_curl_trace(result); | |
7982d74e | 708 | |
b1d1058c | 709 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
745c7c8e | 710 | user_agent ? user_agent : git_user_agent()); |
20fc9bc5 | 711 | |
3ea099d4 SK |
712 | if (curl_ftp_no_epsv) |
713 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
714 | ||
4bc444eb MV |
715 | #ifdef CURLOPT_USE_SSL |
716 | if (curl_ssl_try) | |
717 | curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY); | |
718 | #endif | |
719 | ||
372370f1 KF |
720 | /* |
721 | * CURL also examines these variables as a fallback; but we need to query | |
722 | * them here in order to decide whether to prompt for missing password (cf. | |
723 | * init_curl_proxy_auth()). | |
724 | * | |
725 | * Unlike many other common environment variables, these are historically | |
726 | * lowercase only. It appears that CURL did not know this and implemented | |
727 | * only uppercase variants, which was later corrected to take both - with | |
728 | * the exception of http_proxy, which is lowercase only also in CURL. As | |
729 | * the lowercase versions are the historical quasi-standard, they take | |
730 | * precedence here, as in CURL. | |
731 | */ | |
732 | if (!curl_http_proxy) { | |
d63ed6ef | 733 | if (http_auth.protocol && !strcmp(http_auth.protocol, "https")) { |
372370f1 KF |
734 | var_override(&curl_http_proxy, getenv("HTTPS_PROXY")); |
735 | var_override(&curl_http_proxy, getenv("https_proxy")); | |
736 | } else { | |
737 | var_override(&curl_http_proxy, getenv("http_proxy")); | |
738 | } | |
739 | if (!curl_http_proxy) { | |
740 | var_override(&curl_http_proxy, getenv("ALL_PROXY")); | |
741 | var_override(&curl_http_proxy, getenv("all_proxy")); | |
742 | } | |
743 | } | |
744 | ||
dd613997 | 745 | if (curl_http_proxy) { |
9c5665aa | 746 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); |
6d7afe07 | 747 | #if LIBCURL_VERSION_NUM >= 0x071800 |
87f8a0b2 JH |
748 | if (starts_with(curl_http_proxy, "socks5h")) |
749 | curl_easy_setopt(result, | |
750 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5_HOSTNAME); | |
751 | else if (starts_with(curl_http_proxy, "socks5")) | |
6d7afe07 PT |
752 | curl_easy_setopt(result, |
753 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5); | |
754 | else if (starts_with(curl_http_proxy, "socks4a")) | |
755 | curl_easy_setopt(result, | |
756 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4A); | |
757 | else if (starts_with(curl_http_proxy, "socks")) | |
758 | curl_easy_setopt(result, | |
759 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4); | |
760 | #endif | |
372370f1 KF |
761 | if (strstr(curl_http_proxy, "://")) |
762 | credential_from_url(&proxy_auth, curl_http_proxy); | |
763 | else { | |
764 | struct strbuf url = STRBUF_INIT; | |
765 | strbuf_addf(&url, "http://%s", curl_http_proxy); | |
766 | credential_from_url(&proxy_auth, url.buf); | |
767 | strbuf_release(&url); | |
768 | } | |
769 | ||
770 | curl_easy_setopt(result, CURLOPT_PROXY, proxy_auth.host); | |
d445fda4 JX |
771 | #if LIBCURL_VERSION_NUM >= 0x071304 |
772 | var_override(&curl_no_proxy, getenv("NO_PROXY")); | |
773 | var_override(&curl_no_proxy, getenv("no_proxy")); | |
774 | curl_easy_setopt(result, CURLOPT_NOPROXY, curl_no_proxy); | |
775 | #endif | |
5841520b | 776 | } |
ef976395 | 777 | init_curl_proxy_auth(result); |
9c5665aa | 778 | |
47ce1153 | 779 | set_curl_keepalive(result); |
a15d069a | 780 | |
11979b98 JH |
781 | return result; |
782 | } | |
783 | ||
7059cd99 JH |
784 | static void set_from_env(const char **var, const char *envname) |
785 | { | |
786 | const char *val = getenv(envname); | |
787 | if (val) | |
788 | *var = val; | |
789 | } | |
790 | ||
a4ddbc33 | 791 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
792 | { |
793 | char *low_speed_limit; | |
794 | char *low_speed_time; | |
6a56993b KM |
795 | char *normalized_url; |
796 | struct urlmatch_config config = { STRING_LIST_INIT_DUP }; | |
797 | ||
798 | config.section = "http"; | |
799 | config.key = NULL; | |
800 | config.collect_fn = http_options; | |
801 | config.cascade_fn = git_default_config; | |
802 | config.cb = NULL; | |
29508e1e | 803 | |
e9176745 | 804 | http_is_verbose = 0; |
6a56993b | 805 | normalized_url = url_normalize(url, &config.url); |
e9176745 | 806 | |
6a56993b KM |
807 | git_config(urlmatch_config_entry, &config); |
808 | free(normalized_url); | |
7059cd99 | 809 | |
faa3807c BR |
810 | if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) |
811 | die("curl_global_init failed"); | |
29508e1e | 812 | |
a4ddbc33 JK |
813 | http_proactive_auth = proactive_auth; |
814 | ||
9fc6440d MH |
815 | if (remote && remote->http_proxy) |
816 | curl_http_proxy = xstrdup(remote->http_proxy); | |
817 | ||
ef976395 KF |
818 | if (remote) |
819 | var_override(&http_proxy_authmethod, remote->http_proxy_authmethod); | |
820 | ||
8cb01e2f JS |
821 | pragma_header = curl_slist_append(http_copy_default_headers(), |
822 | "Pragma: no-cache"); | |
823 | no_pragma_header = curl_slist_append(http_copy_default_headers(), | |
824 | "Pragma:"); | |
29508e1e NH |
825 | |
826 | #ifdef USE_CURL_MULTI | |
827 | { | |
828 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
829 | if (http_max_requests != NULL) | |
830 | max_requests = atoi(http_max_requests); | |
831 | } | |
832 | ||
833 | curlm = curl_multi_init(); | |
8837eb47 JK |
834 | if (!curlm) |
835 | die("curl_multi_init failed"); | |
29508e1e NH |
836 | #endif |
837 | ||
838 | if (getenv("GIT_SSL_NO_VERIFY")) | |
839 | curl_ssl_verify = 0; | |
840 | ||
7059cd99 | 841 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 842 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 843 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
844 | #endif |
845 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 846 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 847 | #endif |
7059cd99 | 848 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 849 | |
b1d1058c SO |
850 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
851 | ||
29508e1e NH |
852 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
853 | if (low_speed_limit != NULL) | |
854 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
855 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
856 | if (low_speed_time != NULL) | |
857 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
858 | ||
29508e1e NH |
859 | if (curl_ssl_verify == -1) |
860 | curl_ssl_verify = 1; | |
861 | ||
ad75ebe5 | 862 | curl_session_count = 0; |
29508e1e NH |
863 | #ifdef USE_CURL_MULTI |
864 | if (max_requests < 1) | |
865 | max_requests = DEFAULT_MAX_REQUESTS; | |
866 | #endif | |
867 | ||
3ea099d4 SK |
868 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
869 | curl_ftp_no_epsv = 1; | |
870 | ||
deba4937 | 871 | if (url) { |
148bb6a7 | 872 | credential_from_url(&http_auth, url); |
754ae192 ML |
873 | if (!ssl_cert_password_required && |
874 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
59556548 | 875 | starts_with(url, "https://")) |
30dd9163 ML |
876 | ssl_cert_password_required = 1; |
877 | } | |
c33976cb | 878 | |
29508e1e NH |
879 | #ifndef NO_CURL_EASY_DUPHANDLE |
880 | curl_default = get_curl_handle(); | |
881 | #endif | |
882 | } | |
883 | ||
884 | void http_cleanup(void) | |
885 | { | |
886 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
887 | |
888 | while (slot != NULL) { | |
3278cd0a | 889 | struct active_request_slot *next = slot->next; |
f23d1f76 | 890 | if (slot->curl != NULL) { |
d8b6b84d | 891 | xmulti_remove_handle(slot); |
29508e1e | 892 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 893 | } |
3278cd0a SP |
894 | free(slot); |
895 | slot = next; | |
29508e1e | 896 | } |
3278cd0a | 897 | active_queue_head = NULL; |
29508e1e NH |
898 | |
899 | #ifndef NO_CURL_EASY_DUPHANDLE | |
900 | curl_easy_cleanup(curl_default); | |
901 | #endif | |
902 | ||
903 | #ifdef USE_CURL_MULTI | |
904 | curl_multi_cleanup(curlm); | |
905 | #endif | |
906 | curl_global_cleanup(); | |
b3ca4e4e | 907 | |
8cb01e2f JS |
908 | curl_slist_free_all(extra_http_headers); |
909 | extra_http_headers = NULL; | |
910 | ||
b3ca4e4e | 911 | curl_slist_free_all(pragma_header); |
3278cd0a | 912 | pragma_header = NULL; |
9fc6440d | 913 | |
e9176745 TRC |
914 | curl_slist_free_all(no_pragma_header); |
915 | no_pragma_header = NULL; | |
916 | ||
9fc6440d | 917 | if (curl_http_proxy) { |
e4a80ecf | 918 | free((void *)curl_http_proxy); |
9fc6440d MH |
919 | curl_http_proxy = NULL; |
920 | } | |
30dd9163 | 921 | |
372370f1 KF |
922 | if (proxy_auth.password) { |
923 | memset(proxy_auth.password, 0, strlen(proxy_auth.password)); | |
924 | free(proxy_auth.password); | |
925 | proxy_auth.password = NULL; | |
926 | } | |
927 | ||
928 | free((void *)curl_proxyuserpwd); | |
929 | curl_proxyuserpwd = NULL; | |
930 | ||
ef976395 KF |
931 | free((void *)http_proxy_authmethod); |
932 | http_proxy_authmethod = NULL; | |
933 | ||
148bb6a7 JK |
934 | if (cert_auth.password != NULL) { |
935 | memset(cert_auth.password, 0, strlen(cert_auth.password)); | |
936 | free(cert_auth.password); | |
937 | cert_auth.password = NULL; | |
30dd9163 ML |
938 | } |
939 | ssl_cert_password_required = 0; | |
f18604bb YE |
940 | |
941 | free(cached_accept_language); | |
942 | cached_accept_language = NULL; | |
29508e1e NH |
943 | } |
944 | ||
29508e1e NH |
945 | struct active_request_slot *get_active_slot(void) |
946 | { | |
947 | struct active_request_slot *slot = active_queue_head; | |
948 | struct active_request_slot *newslot; | |
949 | ||
950 | #ifdef USE_CURL_MULTI | |
951 | int num_transfers; | |
952 | ||
953 | /* Wait for a slot to open up if the queue is full */ | |
954 | while (active_requests >= max_requests) { | |
955 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 956 | if (num_transfers < active_requests) |
29508e1e | 957 | process_curl_messages(); |
29508e1e NH |
958 | } |
959 | #endif | |
960 | ||
4251ccbd | 961 | while (slot != NULL && slot->in_use) |
29508e1e | 962 | slot = slot->next; |
4251ccbd | 963 | |
29508e1e NH |
964 | if (slot == NULL) { |
965 | newslot = xmalloc(sizeof(*newslot)); | |
966 | newslot->curl = NULL; | |
967 | newslot->in_use = 0; | |
968 | newslot->next = NULL; | |
969 | ||
970 | slot = active_queue_head; | |
971 | if (slot == NULL) { | |
972 | active_queue_head = newslot; | |
973 | } else { | |
4251ccbd | 974 | while (slot->next != NULL) |
29508e1e | 975 | slot = slot->next; |
29508e1e NH |
976 | slot->next = newslot; |
977 | } | |
978 | slot = newslot; | |
979 | } | |
980 | ||
981 | if (slot->curl == NULL) { | |
982 | #ifdef NO_CURL_EASY_DUPHANDLE | |
983 | slot->curl = get_curl_handle(); | |
984 | #else | |
985 | slot->curl = curl_easy_duphandle(curl_default); | |
986 | #endif | |
ad75ebe5 | 987 | curl_session_count++; |
29508e1e NH |
988 | } |
989 | ||
990 | active_requests++; | |
991 | slot->in_use = 1; | |
c8568e13 | 992 | slot->results = NULL; |
baa7b67d | 993 | slot->finished = NULL; |
29508e1e NH |
994 | slot->callback_data = NULL; |
995 | slot->callback_func = NULL; | |
bcfb95dd | 996 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
912b2acf DB |
997 | if (curl_save_cookies) |
998 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file); | |
29508e1e | 999 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 1000 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
1001 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
1002 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
1003 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 1004 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
1005 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
1006 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
b793acf1 | 1007 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1); |
835c4d36 | 1008 | curl_easy_setopt(slot->curl, CURLOPT_RANGE, NULL); |
c915f11e EW |
1009 | |
1010 | #if LIBCURL_VERSION_NUM >= 0x070a08 | |
1011 | curl_easy_setopt(slot->curl, CURLOPT_IPRESOLVE, git_curl_ipresolve); | |
1012 | #endif | |
4dbe6646 | 1013 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
1014 | curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods); | |
1015 | #endif | |
121061f6 | 1016 | if (http_auth.password || curl_empty_auth) |
dfa1725a | 1017 | init_curl_http_auth(slot->curl); |
29508e1e NH |
1018 | |
1019 | return slot; | |
1020 | } | |
1021 | ||
1022 | int start_active_slot(struct active_request_slot *slot) | |
1023 | { | |
1024 | #ifdef USE_CURL_MULTI | |
1025 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 1026 | int num_transfers; |
29508e1e NH |
1027 | |
1028 | if (curlm_result != CURLM_OK && | |
1029 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
9f1b5884 EW |
1030 | warning("curl_multi_add_handle failed: %s", |
1031 | curl_multi_strerror(curlm_result)); | |
29508e1e NH |
1032 | active_requests--; |
1033 | slot->in_use = 0; | |
1034 | return 0; | |
1035 | } | |
45c17412 DB |
1036 | |
1037 | /* | |
1038 | * We know there must be something to do, since we just added | |
1039 | * something. | |
1040 | */ | |
1041 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
1042 | #endif |
1043 | return 1; | |
1044 | } | |
1045 | ||
1046 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
1047 | struct fill_chain { |
1048 | void *data; | |
1049 | int (*fill)(void *); | |
1050 | struct fill_chain *next; | |
1051 | }; | |
1052 | ||
4251ccbd | 1053 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
1054 | |
1055 | void add_fill_function(void *data, int (*fill)(void *)) | |
1056 | { | |
e8eec71d | 1057 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
1058 | struct fill_chain **linkp = &fill_cfg; |
1059 | new->data = data; | |
1060 | new->fill = fill; | |
1061 | new->next = NULL; | |
1062 | while (*linkp) | |
1063 | linkp = &(*linkp)->next; | |
1064 | *linkp = new; | |
1065 | } | |
1066 | ||
45c17412 DB |
1067 | void fill_active_slots(void) |
1068 | { | |
1069 | struct active_request_slot *slot = active_queue_head; | |
1070 | ||
fc57b6aa DB |
1071 | while (active_requests < max_requests) { |
1072 | struct fill_chain *fill; | |
1073 | for (fill = fill_cfg; fill; fill = fill->next) | |
1074 | if (fill->fill(fill->data)) | |
1075 | break; | |
1076 | ||
1077 | if (!fill) | |
45c17412 | 1078 | break; |
fc57b6aa | 1079 | } |
45c17412 DB |
1080 | |
1081 | while (slot != NULL) { | |
ad75ebe5 TRC |
1082 | if (!slot->in_use && slot->curl != NULL |
1083 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
1084 | curl_easy_cleanup(slot->curl); |
1085 | slot->curl = NULL; | |
ad75ebe5 | 1086 | curl_session_count--; |
45c17412 DB |
1087 | } |
1088 | slot = slot->next; | |
1089 | } | |
1090 | } | |
1091 | ||
29508e1e NH |
1092 | void step_active_slots(void) |
1093 | { | |
1094 | int num_transfers; | |
1095 | CURLMcode curlm_result; | |
1096 | ||
1097 | do { | |
1098 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
1099 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
1100 | if (num_transfers < active_requests) { | |
1101 | process_curl_messages(); | |
1102 | fill_active_slots(); | |
1103 | } | |
1104 | } | |
1105 | #endif | |
1106 | ||
1107 | void run_active_slot(struct active_request_slot *slot) | |
1108 | { | |
1109 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
1110 | fd_set readfds; |
1111 | fd_set writefds; | |
1112 | fd_set excfds; | |
1113 | int max_fd; | |
1114 | struct timeval select_timeout; | |
baa7b67d | 1115 | int finished = 0; |
29508e1e | 1116 | |
baa7b67d NH |
1117 | slot->finished = &finished; |
1118 | while (!finished) { | |
29508e1e NH |
1119 | step_active_slots(); |
1120 | ||
df26c471 | 1121 | if (slot->in_use) { |
eb56c821 MF |
1122 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
1123 | long curl_timeout; | |
1124 | curl_multi_timeout(curlm, &curl_timeout); | |
1125 | if (curl_timeout == 0) { | |
1126 | continue; | |
1127 | } else if (curl_timeout == -1) { | |
1128 | select_timeout.tv_sec = 0; | |
1129 | select_timeout.tv_usec = 50000; | |
1130 | } else { | |
1131 | select_timeout.tv_sec = curl_timeout / 1000; | |
1132 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
1133 | } | |
1134 | #else | |
1135 | select_timeout.tv_sec = 0; | |
1136 | select_timeout.tv_usec = 50000; | |
1137 | #endif | |
29508e1e | 1138 | |
6f9dd67f | 1139 | max_fd = -1; |
29508e1e NH |
1140 | FD_ZERO(&readfds); |
1141 | FD_ZERO(&writefds); | |
1142 | FD_ZERO(&excfds); | |
6f9dd67f | 1143 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 1144 | |
7202b81f SZ |
1145 | /* |
1146 | * It can happen that curl_multi_timeout returns a pathologically | |
1147 | * long timeout when curl_multi_fdset returns no file descriptors | |
1148 | * to read. See commit message for more details. | |
1149 | */ | |
1150 | if (max_fd < 0 && | |
1151 | (select_timeout.tv_sec > 0 || | |
1152 | select_timeout.tv_usec > 50000)) { | |
1153 | select_timeout.tv_sec = 0; | |
1154 | select_timeout.tv_usec = 50000; | |
1155 | } | |
1156 | ||
6f9dd67f | 1157 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
1158 | } |
1159 | } | |
1160 | #else | |
1161 | while (slot->in_use) { | |
1162 | slot->curl_result = curl_easy_perform(slot->curl); | |
1163 | finish_active_slot(slot); | |
1164 | } | |
1165 | #endif | |
1166 | } | |
1167 | ||
83e41e2e | 1168 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
1169 | { |
1170 | closedown_active_slot(slot); | |
2abc848d | 1171 | if (slot->curl) { |
d8b6b84d | 1172 | xmulti_remove_handle(slot); |
2abc848d EW |
1173 | if (curl_session_count > min_curl_sessions) { |
1174 | curl_easy_cleanup(slot->curl); | |
1175 | slot->curl = NULL; | |
1176 | curl_session_count--; | |
1177 | } | |
53f31389 | 1178 | } |
b3ca4e4e | 1179 | #ifdef USE_CURL_MULTI |
53f31389 | 1180 | fill_active_slots(); |
b3ca4e4e | 1181 | #endif |
53f31389 MW |
1182 | } |
1183 | ||
29508e1e NH |
1184 | void finish_all_active_slots(void) |
1185 | { | |
1186 | struct active_request_slot *slot = active_queue_head; | |
1187 | ||
1188 | while (slot != NULL) | |
1189 | if (slot->in_use) { | |
1190 | run_active_slot(slot); | |
1191 | slot = active_queue_head; | |
1192 | } else { | |
1193 | slot = slot->next; | |
1194 | } | |
1195 | } | |
d7e92806 | 1196 | |
5ace994f | 1197 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
1198 | static inline int needs_quote(int ch) |
1199 | { | |
1200 | if (((ch >= 'A') && (ch <= 'Z')) | |
1201 | || ((ch >= 'a') && (ch <= 'z')) | |
1202 | || ((ch >= '0') && (ch <= '9')) | |
1203 | || (ch == '/') | |
1204 | || (ch == '-') | |
1205 | || (ch == '.')) | |
1206 | return 0; | |
1207 | return 1; | |
1208 | } | |
1209 | ||
d7e92806 MH |
1210 | static char *quote_ref_url(const char *base, const char *ref) |
1211 | { | |
113106e0 | 1212 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 1213 | const char *cp; |
113106e0 | 1214 | int ch; |
d7e92806 | 1215 | |
5ace994f | 1216 | end_url_with_slash(&buf, base); |
113106e0 TRC |
1217 | |
1218 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 1219 | if (needs_quote(ch)) |
113106e0 | 1220 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 1221 | else |
113106e0 | 1222 | strbuf_addch(&buf, *cp); |
d7e92806 | 1223 | |
113106e0 | 1224 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
1225 | } |
1226 | ||
5424bc55 TRC |
1227 | void append_remote_object_url(struct strbuf *buf, const char *url, |
1228 | const char *hex, | |
1229 | int only_two_digit_prefix) | |
1230 | { | |
800324c3 TRC |
1231 | end_url_with_slash(buf, url); |
1232 | ||
1233 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 | 1234 | if (!only_two_digit_prefix) |
bc57b9c0 | 1235 | strbuf_addstr(buf, hex + 2); |
5424bc55 TRC |
1236 | } |
1237 | ||
1238 | char *get_remote_object_url(const char *url, const char *hex, | |
1239 | int only_two_digit_prefix) | |
1240 | { | |
1241 | struct strbuf buf = STRBUF_INIT; | |
1242 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
1243 | return strbuf_detach(&buf, NULL); | |
1244 | } | |
1245 | ||
b90a3d7b | 1246 | static int handle_curl_result(struct slot_results *results) |
88097030 | 1247 | { |
6d052d78 JK |
1248 | /* |
1249 | * If we see a failing http code with CURLE_OK, we have turned off | |
1250 | * FAILONERROR (to keep the server's custom error response), and should | |
1251 | * translate the code into failure here. | |
1252 | */ | |
1253 | if (results->curl_result == CURLE_OK && | |
1254 | results->http_code >= 400) { | |
1255 | results->curl_result = CURLE_HTTP_RETURNED_ERROR; | |
1256 | /* | |
1257 | * Normally curl will already have put the "reason phrase" | |
1258 | * from the server into curl_errorstr; unfortunately without | |
1259 | * FAILONERROR it is lost, so we can give only the numeric | |
1260 | * status code. | |
1261 | */ | |
1262 | snprintf(curl_errorstr, sizeof(curl_errorstr), | |
1263 | "The requested URL returned error: %ld", | |
1264 | results->http_code); | |
1265 | } | |
1266 | ||
88097030 JK |
1267 | if (results->curl_result == CURLE_OK) { |
1268 | credential_approve(&http_auth); | |
372370f1 KF |
1269 | if (proxy_auth.password) |
1270 | credential_approve(&proxy_auth); | |
88097030 JK |
1271 | return HTTP_OK; |
1272 | } else if (missing_target(results)) | |
1273 | return HTTP_MISSING_TARGET; | |
1274 | else if (results->http_code == 401) { | |
1275 | if (http_auth.username && http_auth.password) { | |
1276 | credential_reject(&http_auth); | |
1277 | return HTTP_NOAUTH; | |
1278 | } else { | |
4dbe6646 | 1279 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
1280 | http_auth_methods &= ~CURLAUTH_GSSNEGOTIATE; | |
1281 | #endif | |
88097030 JK |
1282 | return HTTP_REAUTH; |
1283 | } | |
1284 | } else { | |
372370f1 KF |
1285 | if (results->http_connectcode == 407) |
1286 | credential_reject(&proxy_auth); | |
3503e9ab | 1287 | #if LIBCURL_VERSION_NUM >= 0x070c00 |
88097030 JK |
1288 | if (!curl_errorstr[0]) |
1289 | strlcpy(curl_errorstr, | |
1290 | curl_easy_strerror(results->curl_result), | |
1291 | sizeof(curl_errorstr)); | |
3503e9ab | 1292 | #endif |
88097030 JK |
1293 | return HTTP_ERROR; |
1294 | } | |
1295 | } | |
1296 | ||
beed336c JK |
1297 | int run_one_slot(struct active_request_slot *slot, |
1298 | struct slot_results *results) | |
1299 | { | |
1300 | slot->results = results; | |
1301 | if (!start_active_slot(slot)) { | |
1302 | snprintf(curl_errorstr, sizeof(curl_errorstr), | |
1303 | "failed to start HTTP request"); | |
1304 | return HTTP_START_FAILED; | |
1305 | } | |
1306 | ||
1307 | run_active_slot(slot); | |
1308 | return handle_curl_result(results); | |
1309 | } | |
1310 | ||
8cb01e2f JS |
1311 | struct curl_slist *http_copy_default_headers(void) |
1312 | { | |
1313 | struct curl_slist *headers = NULL, *h; | |
1314 | ||
1315 | for (h = extra_http_headers; h; h = h->next) | |
1316 | headers = curl_slist_append(headers, h->data); | |
1317 | ||
1318 | return headers; | |
1319 | } | |
1320 | ||
132b70a2 JK |
1321 | static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf) |
1322 | { | |
1323 | char *ptr; | |
1324 | CURLcode ret; | |
1325 | ||
1326 | strbuf_reset(buf); | |
1327 | ret = curl_easy_getinfo(curl, info, &ptr); | |
1328 | if (!ret && ptr) | |
1329 | strbuf_addstr(buf, ptr); | |
1330 | return ret; | |
1331 | } | |
1332 | ||
e3131626 JK |
1333 | /* |
1334 | * Check for and extract a content-type parameter. "raw" | |
1335 | * should be positioned at the start of the potential | |
1336 | * parameter, with any whitespace already removed. | |
1337 | * | |
1338 | * "name" is the name of the parameter. The value is appended | |
1339 | * to "out". | |
1340 | */ | |
1341 | static int extract_param(const char *raw, const char *name, | |
1342 | struct strbuf *out) | |
1343 | { | |
1344 | size_t len = strlen(name); | |
1345 | ||
1346 | if (strncasecmp(raw, name, len)) | |
1347 | return -1; | |
1348 | raw += len; | |
1349 | ||
1350 | if (*raw != '=') | |
1351 | return -1; | |
1352 | raw++; | |
1353 | ||
f34a655d | 1354 | while (*raw && !isspace(*raw) && *raw != ';') |
e3131626 JK |
1355 | strbuf_addch(out, *raw++); |
1356 | return 0; | |
1357 | } | |
1358 | ||
bf197fd7 JK |
1359 | /* |
1360 | * Extract a normalized version of the content type, with any | |
1361 | * spaces suppressed, all letters lowercased, and no trailing ";" | |
1362 | * or parameters. | |
1363 | * | |
1364 | * Note that we will silently remove even invalid whitespace. For | |
1365 | * example, "text / plain" is specifically forbidden by RFC 2616, | |
1366 | * but "text/plain" is the only reasonable output, and this keeps | |
1367 | * our code simple. | |
1368 | * | |
e3131626 JK |
1369 | * If the "charset" argument is not NULL, store the value of any |
1370 | * charset parameter there. | |
1371 | * | |
bf197fd7 | 1372 | * Example: |
e3131626 | 1373 | * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8" |
bf197fd7 JK |
1374 | * "text / plain" -> "text/plain" |
1375 | */ | |
e3131626 JK |
1376 | static void extract_content_type(struct strbuf *raw, struct strbuf *type, |
1377 | struct strbuf *charset) | |
bf197fd7 JK |
1378 | { |
1379 | const char *p; | |
1380 | ||
1381 | strbuf_reset(type); | |
1382 | strbuf_grow(type, raw->len); | |
1383 | for (p = raw->buf; *p; p++) { | |
1384 | if (isspace(*p)) | |
1385 | continue; | |
e3131626 JK |
1386 | if (*p == ';') { |
1387 | p++; | |
bf197fd7 | 1388 | break; |
e3131626 | 1389 | } |
bf197fd7 JK |
1390 | strbuf_addch(type, tolower(*p)); |
1391 | } | |
e3131626 JK |
1392 | |
1393 | if (!charset) | |
1394 | return; | |
1395 | ||
1396 | strbuf_reset(charset); | |
1397 | while (*p) { | |
f34a655d | 1398 | while (isspace(*p) || *p == ';') |
e3131626 JK |
1399 | p++; |
1400 | if (!extract_param(p, "charset", charset)) | |
1401 | return; | |
1402 | while (*p && !isspace(*p)) | |
1403 | p++; | |
1404 | } | |
c553fd1c JK |
1405 | |
1406 | if (!charset->len && starts_with(type->buf, "text/")) | |
1407 | strbuf_addstr(charset, "ISO-8859-1"); | |
bf197fd7 JK |
1408 | } |
1409 | ||
f18604bb YE |
1410 | static void write_accept_language(struct strbuf *buf) |
1411 | { | |
1412 | /* | |
1413 | * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than | |
1414 | * that, q-value will be smaller than 0.001, the minimum q-value the | |
1415 | * HTTP specification allows. See | |
1416 | * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value. | |
1417 | */ | |
1418 | const int MAX_DECIMAL_PLACES = 3; | |
1419 | const int MAX_LANGUAGE_TAGS = 1000; | |
1420 | const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE = 4000; | |
1421 | char **language_tags = NULL; | |
1422 | int num_langs = 0; | |
1423 | const char *s = get_preferred_languages(); | |
1424 | int i; | |
1425 | struct strbuf tag = STRBUF_INIT; | |
1426 | ||
1427 | /* Don't add Accept-Language header if no language is preferred. */ | |
1428 | if (!s) | |
1429 | return; | |
1430 | ||
1431 | /* | |
1432 | * Split the colon-separated string of preferred languages into | |
1433 | * language_tags array. | |
1434 | */ | |
1435 | do { | |
1436 | /* collect language tag */ | |
1437 | for (; *s && (isalnum(*s) || *s == '_'); s++) | |
1438 | strbuf_addch(&tag, *s == '_' ? '-' : *s); | |
1439 | ||
1440 | /* skip .codeset, @modifier and any other unnecessary parts */ | |
1441 | while (*s && *s != ':') | |
1442 | s++; | |
1443 | ||
1444 | if (tag.len) { | |
1445 | num_langs++; | |
1446 | REALLOC_ARRAY(language_tags, num_langs); | |
1447 | language_tags[num_langs - 1] = strbuf_detach(&tag, NULL); | |
1448 | if (num_langs >= MAX_LANGUAGE_TAGS - 1) /* -1 for '*' */ | |
1449 | break; | |
1450 | } | |
1451 | } while (*s++); | |
1452 | ||
1453 | /* write Accept-Language header into buf */ | |
1454 | if (num_langs) { | |
1455 | int last_buf_len = 0; | |
1456 | int max_q; | |
1457 | int decimal_places; | |
1458 | char q_format[32]; | |
1459 | ||
1460 | /* add '*' */ | |
1461 | REALLOC_ARRAY(language_tags, num_langs + 1); | |
1462 | language_tags[num_langs++] = "*"; /* it's OK; this won't be freed */ | |
1463 | ||
1464 | /* compute decimal_places */ | |
1465 | for (max_q = 1, decimal_places = 0; | |
1466 | max_q < num_langs && decimal_places <= MAX_DECIMAL_PLACES; | |
1467 | decimal_places++, max_q *= 10) | |
1468 | ; | |
1469 | ||
5096d490 | 1470 | xsnprintf(q_format, sizeof(q_format), ";q=0.%%0%dd", decimal_places); |
f18604bb YE |
1471 | |
1472 | strbuf_addstr(buf, "Accept-Language: "); | |
1473 | ||
1474 | for (i = 0; i < num_langs; i++) { | |
1475 | if (i > 0) | |
1476 | strbuf_addstr(buf, ", "); | |
1477 | ||
1478 | strbuf_addstr(buf, language_tags[i]); | |
1479 | ||
1480 | if (i > 0) | |
1481 | strbuf_addf(buf, q_format, max_q - i); | |
1482 | ||
1483 | if (buf->len > MAX_ACCEPT_LANGUAGE_HEADER_SIZE) { | |
1484 | strbuf_remove(buf, last_buf_len, buf->len - last_buf_len); | |
1485 | break; | |
1486 | } | |
1487 | ||
1488 | last_buf_len = buf->len; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | /* free language tags -- last one is a static '*' */ | |
1493 | for (i = 0; i < num_langs - 1; i++) | |
1494 | free(language_tags[i]); | |
1495 | free(language_tags); | |
1496 | } | |
1497 | ||
1498 | /* | |
1499 | * Get an Accept-Language header which indicates user's preferred languages. | |
1500 | * | |
1501 | * Examples: | |
1502 | * LANGUAGE= -> "" | |
1503 | * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1" | |
1504 | * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1" | |
1505 | * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1" | |
1506 | * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1" | |
1507 | * LANGUAGE= LANG=C -> "" | |
1508 | */ | |
1509 | static const char *get_accept_language(void) | |
1510 | { | |
1511 | if (!cached_accept_language) { | |
1512 | struct strbuf buf = STRBUF_INIT; | |
1513 | write_accept_language(&buf); | |
1514 | if (buf.len > 0) | |
1515 | cached_accept_language = strbuf_detach(&buf, NULL); | |
1516 | } | |
1517 | ||
1518 | return cached_accept_language; | |
1519 | } | |
1520 | ||
835c4d36 DT |
1521 | static void http_opt_request_remainder(CURL *curl, off_t pos) |
1522 | { | |
1523 | char buf[128]; | |
1524 | xsnprintf(buf, sizeof(buf), "%"PRIuMAX"-", (uintmax_t)pos); | |
1525 | curl_easy_setopt(curl, CURLOPT_RANGE, buf); | |
1526 | } | |
1527 | ||
e929cd20 MH |
1528 | /* http_request() targets */ |
1529 | #define HTTP_REQUEST_STRBUF 0 | |
1530 | #define HTTP_REQUEST_FILE 1 | |
1531 | ||
1bbcc224 JK |
1532 | static int http_request(const char *url, |
1533 | void *result, int target, | |
1534 | const struct http_get_options *options) | |
e929cd20 MH |
1535 | { |
1536 | struct active_request_slot *slot; | |
1537 | struct slot_results results; | |
8cb01e2f | 1538 | struct curl_slist *headers = http_copy_default_headers(); |
e929cd20 | 1539 | struct strbuf buf = STRBUF_INIT; |
f18604bb | 1540 | const char *accept_language; |
e929cd20 MH |
1541 | int ret; |
1542 | ||
1543 | slot = get_active_slot(); | |
e929cd20 MH |
1544 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); |
1545 | ||
1546 | if (result == NULL) { | |
1547 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
1548 | } else { | |
1549 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
1550 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
1551 | ||
1552 | if (target == HTTP_REQUEST_FILE) { | |
f8117f55 | 1553 | off_t posn = ftello(result); |
e929cd20 MH |
1554 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, |
1555 | fwrite); | |
835c4d36 DT |
1556 | if (posn > 0) |
1557 | http_opt_request_remainder(slot->curl, posn); | |
e929cd20 MH |
1558 | } else |
1559 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
1560 | fwrite_buffer); | |
1561 | } | |
1562 | ||
f18604bb YE |
1563 | accept_language = get_accept_language(); |
1564 | ||
1565 | if (accept_language) | |
1566 | headers = curl_slist_append(headers, accept_language); | |
1567 | ||
e929cd20 | 1568 | strbuf_addstr(&buf, "Pragma:"); |
1bbcc224 | 1569 | if (options && options->no_cache) |
e929cd20 | 1570 | strbuf_addstr(&buf, " no-cache"); |
1bbcc224 | 1571 | if (options && options->keep_error) |
6d052d78 | 1572 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0); |
e929cd20 MH |
1573 | |
1574 | headers = curl_slist_append(headers, buf.buf); | |
1575 | ||
1576 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
1577 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
aa90b969 | 1578 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
e929cd20 | 1579 | |
beed336c | 1580 | ret = run_one_slot(slot, &results); |
e929cd20 | 1581 | |
bf197fd7 JK |
1582 | if (options && options->content_type) { |
1583 | struct strbuf raw = STRBUF_INIT; | |
1584 | curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw); | |
e3131626 JK |
1585 | extract_content_type(&raw, options->content_type, |
1586 | options->charset); | |
bf197fd7 JK |
1587 | strbuf_release(&raw); |
1588 | } | |
4656bf47 | 1589 | |
78868962 JK |
1590 | if (options && options->effective_url) |
1591 | curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL, | |
1592 | options->effective_url); | |
4656bf47 | 1593 | |
e929cd20 MH |
1594 | curl_slist_free_all(headers); |
1595 | strbuf_release(&buf); | |
1596 | ||
1597 | return ret; | |
1598 | } | |
1599 | ||
c93c92f3 JK |
1600 | /* |
1601 | * Update the "base" url to a more appropriate value, as deduced by | |
1602 | * redirects seen when requesting a URL starting with "url". | |
1603 | * | |
1604 | * The "asked" parameter is a URL that we asked curl to access, and must begin | |
1605 | * with "base". | |
1606 | * | |
1607 | * The "got" parameter is the URL that curl reported to us as where we ended | |
1608 | * up. | |
1609 | * | |
1610 | * Returns 1 if we updated the base url, 0 otherwise. | |
1611 | * | |
1612 | * Our basic strategy is to compare "base" and "asked" to find the bits | |
1613 | * specific to our request. We then strip those bits off of "got" to yield the | |
1614 | * new base. So for example, if our base is "http://example.com/foo.git", | |
1615 | * and we ask for "http://example.com/foo.git/info/refs", we might end up | |
1616 | * with "https://other.example.com/foo.git/info/refs". We would want the | |
1617 | * new URL to become "https://other.example.com/foo.git". | |
1618 | * | |
1619 | * Note that this assumes a sane redirect scheme. It's entirely possible | |
1620 | * in the example above to end up at a URL that does not even end in | |
1621 | * "info/refs". In such a case we simply punt, as there is not much we can | |
1622 | * do (and such a scheme is unlikely to represent a real git repository, | |
1623 | * which means we are likely about to abort anyway). | |
1624 | */ | |
1625 | static int update_url_from_redirect(struct strbuf *base, | |
1626 | const char *asked, | |
1627 | const struct strbuf *got) | |
1628 | { | |
1629 | const char *tail; | |
1630 | size_t tail_len; | |
1631 | ||
1632 | if (!strcmp(asked, got->buf)) | |
1633 | return 0; | |
1634 | ||
de8118e1 | 1635 | if (!skip_prefix(asked, base->buf, &tail)) |
c93c92f3 JK |
1636 | die("BUG: update_url_from_redirect: %s is not a superset of %s", |
1637 | asked, base->buf); | |
1638 | ||
c93c92f3 JK |
1639 | tail_len = strlen(tail); |
1640 | ||
1641 | if (got->len < tail_len || | |
1642 | strcmp(tail, got->buf + got->len - tail_len)) | |
1643 | return 0; /* insane redirect scheme */ | |
1644 | ||
1645 | strbuf_reset(base); | |
1646 | strbuf_add(base, got->buf, got->len - tail_len); | |
1647 | return 1; | |
1648 | } | |
1649 | ||
4656bf47 | 1650 | static int http_request_reauth(const char *url, |
4656bf47 | 1651 | void *result, int target, |
1bbcc224 | 1652 | struct http_get_options *options) |
8d677edc | 1653 | { |
1bbcc224 | 1654 | int ret = http_request(url, result, target, options); |
c93c92f3 JK |
1655 | |
1656 | if (options && options->effective_url && options->base_url) { | |
1657 | if (update_url_from_redirect(options->base_url, | |
1658 | url, options->effective_url)) { | |
1659 | credential_from_url(&http_auth, options->base_url->buf); | |
1660 | url = options->effective_url->buf; | |
1661 | } | |
1662 | } | |
1663 | ||
8d677edc JK |
1664 | if (ret != HTTP_REAUTH) |
1665 | return ret; | |
6d052d78 JK |
1666 | |
1667 | /* | |
1668 | * If we are using KEEP_ERROR, the previous request may have | |
1669 | * put cruft into our output stream; we should clear it out before | |
1670 | * making our next request. We only know how to do this for | |
1671 | * the strbuf case, but that is enough to satisfy current callers. | |
1672 | */ | |
1bbcc224 | 1673 | if (options && options->keep_error) { |
6d052d78 JK |
1674 | switch (target) { |
1675 | case HTTP_REQUEST_STRBUF: | |
1676 | strbuf_reset(result); | |
1677 | break; | |
1678 | default: | |
1679 | die("BUG: HTTP_KEEP_ERROR is only supported with strbufs"); | |
1680 | } | |
1681 | } | |
2501aff8 JK |
1682 | |
1683 | credential_fill(&http_auth); | |
1684 | ||
1bbcc224 | 1685 | return http_request(url, result, target, options); |
8d677edc JK |
1686 | } |
1687 | ||
4656bf47 | 1688 | int http_get_strbuf(const char *url, |
1bbcc224 JK |
1689 | struct strbuf *result, |
1690 | struct http_get_options *options) | |
e929cd20 | 1691 | { |
1bbcc224 | 1692 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
1693 | } |
1694 | ||
83e41e2e | 1695 | /* |
a7793a74 | 1696 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
1697 | * |
1698 | * If a previous interrupted download is detected (i.e. a previous temporary | |
1699 | * file is still around) the download is resumed. | |
1700 | */ | |
1bbcc224 JK |
1701 | static int http_get_file(const char *url, const char *filename, |
1702 | struct http_get_options *options) | |
e929cd20 MH |
1703 | { |
1704 | int ret; | |
1705 | struct strbuf tmpfile = STRBUF_INIT; | |
1706 | FILE *result; | |
1707 | ||
1708 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
1709 | result = fopen(tmpfile.buf, "a"); | |
3d1fb769 | 1710 | if (!result) { |
e929cd20 MH |
1711 | error("Unable to open local file %s", tmpfile.buf); |
1712 | ret = HTTP_ERROR; | |
1713 | goto cleanup; | |
1714 | } | |
1715 | ||
1bbcc224 | 1716 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
1717 | fclose(result); |
1718 | ||
cb5add58 | 1719 | if (ret == HTTP_OK && finalize_object_file(tmpfile.buf, filename)) |
e929cd20 MH |
1720 | ret = HTTP_ERROR; |
1721 | cleanup: | |
1722 | strbuf_release(&tmpfile); | |
1723 | return ret; | |
1724 | } | |
1725 | ||
c13b2633 | 1726 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 | 1727 | { |
1bbcc224 | 1728 | struct http_get_options options = {0}; |
d7e92806 MH |
1729 | char *url; |
1730 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 1731 | int ret = -1; |
d7e92806 | 1732 | |
1bbcc224 JK |
1733 | options.no_cache = 1; |
1734 | ||
c13b2633 | 1735 | url = quote_ref_url(base, ref->name); |
1bbcc224 | 1736 | if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) { |
0d5896e1 MH |
1737 | strbuf_rtrim(&buffer); |
1738 | if (buffer.len == 40) | |
f4e54d02 | 1739 | ret = get_oid_hex(buffer.buf, &ref->old_oid); |
59556548 | 1740 | else if (starts_with(buffer.buf, "ref: ")) { |
0d5896e1 MH |
1741 | ref->symref = xstrdup(buffer.buf + 5); |
1742 | ret = 0; | |
d7e92806 | 1743 | } |
d7e92806 MH |
1744 | } |
1745 | ||
1746 | strbuf_release(&buffer); | |
1747 | free(url); | |
1748 | return ret; | |
1749 | } | |
b8caac2b TRC |
1750 | |
1751 | /* Helpers for fetching packs */ | |
750ef425 | 1752 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 1753 | { |
750ef425 | 1754 | char *url, *tmp; |
b8caac2b | 1755 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 1756 | |
b8caac2b | 1757 | if (http_is_verbose) |
162eb5f8 | 1758 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
1759 | |
1760 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 1761 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
1762 | url = strbuf_detach(&buf, NULL); |
1763 | ||
750ef425 SP |
1764 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
1765 | tmp = strbuf_detach(&buf, NULL); | |
1766 | ||
70900eda | 1767 | if (http_get_file(url, tmp, NULL) != HTTP_OK) { |
82247e9b | 1768 | error("Unable to get pack index %s", url); |
750ef425 SP |
1769 | free(tmp); |
1770 | tmp = NULL; | |
1771 | } | |
b8caac2b | 1772 | |
b8caac2b | 1773 | free(url); |
750ef425 | 1774 | return tmp; |
b8caac2b TRC |
1775 | } |
1776 | ||
1777 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
1778 | unsigned char *sha1, const char *base_url) | |
1779 | { | |
1780 | struct packed_git *new_pack; | |
750ef425 SP |
1781 | char *tmp_idx = NULL; |
1782 | int ret; | |
b8caac2b | 1783 | |
750ef425 | 1784 | if (has_pack_index(sha1)) { |
8b9c2dd4 | 1785 | new_pack = parse_pack_index(sha1, sha1_pack_index_name(sha1)); |
750ef425 SP |
1786 | if (!new_pack) |
1787 | return -1; /* parse_pack_index() already issued error message */ | |
1788 | goto add_pack; | |
1789 | } | |
1790 | ||
1791 | tmp_idx = fetch_pack_index(sha1, base_url); | |
1792 | if (!tmp_idx) | |
b8caac2b TRC |
1793 | return -1; |
1794 | ||
750ef425 SP |
1795 | new_pack = parse_pack_index(sha1, tmp_idx); |
1796 | if (!new_pack) { | |
1797 | unlink(tmp_idx); | |
1798 | free(tmp_idx); | |
1799 | ||
b8caac2b | 1800 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
1801 | } |
1802 | ||
1803 | ret = verify_pack_index(new_pack); | |
1804 | if (!ret) { | |
1805 | close_pack_index(new_pack); | |
cb5add58 | 1806 | ret = finalize_object_file(tmp_idx, sha1_pack_index_name(sha1)); |
750ef425 SP |
1807 | } |
1808 | free(tmp_idx); | |
1809 | if (ret) | |
1810 | return -1; | |
1811 | ||
1812 | add_pack: | |
b8caac2b TRC |
1813 | new_pack->next = *packs_head; |
1814 | *packs_head = new_pack; | |
1815 | return 0; | |
1816 | } | |
1817 | ||
1818 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1819 | { | |
1bbcc224 | 1820 | struct http_get_options options = {0}; |
b8caac2b TRC |
1821 | int ret = 0, i = 0; |
1822 | char *url, *data; | |
1823 | struct strbuf buf = STRBUF_INIT; | |
1824 | unsigned char sha1[20]; | |
1825 | ||
1826 | end_url_with_slash(&buf, base_url); | |
1827 | strbuf_addstr(&buf, "objects/info/packs"); | |
1828 | url = strbuf_detach(&buf, NULL); | |
1829 | ||
1bbcc224 JK |
1830 | options.no_cache = 1; |
1831 | ret = http_get_strbuf(url, &buf, &options); | |
b8caac2b TRC |
1832 | if (ret != HTTP_OK) |
1833 | goto cleanup; | |
1834 | ||
1835 | data = buf.buf; | |
1836 | while (i < buf.len) { | |
1837 | switch (data[i]) { | |
1838 | case 'P': | |
1839 | i++; | |
1840 | if (i + 52 <= buf.len && | |
59556548 CC |
1841 | starts_with(data + i, " pack-") && |
1842 | starts_with(data + i + 46, ".pack\n")) { | |
b8caac2b TRC |
1843 | get_sha1_hex(data + i + 6, sha1); |
1844 | fetch_and_setup_pack_index(packs_head, sha1, | |
1845 | base_url); | |
1846 | i += 51; | |
1847 | break; | |
1848 | } | |
1849 | default: | |
1850 | while (i < buf.len && data[i] != '\n') | |
1851 | i++; | |
1852 | } | |
1853 | i++; | |
1854 | } | |
1855 | ||
1856 | cleanup: | |
1857 | free(url); | |
1858 | return ret; | |
1859 | } | |
2264dfa5 TRC |
1860 | |
1861 | void release_http_pack_request(struct http_pack_request *preq) | |
1862 | { | |
1863 | if (preq->packfile != NULL) { | |
1864 | fclose(preq->packfile); | |
1865 | preq->packfile = NULL; | |
2264dfa5 | 1866 | } |
2264dfa5 TRC |
1867 | preq->slot = NULL; |
1868 | free(preq->url); | |
826aed50 | 1869 | free(preq); |
2264dfa5 TRC |
1870 | } |
1871 | ||
1872 | int finish_http_pack_request(struct http_pack_request *preq) | |
1873 | { | |
2264dfa5 | 1874 | struct packed_git **lst; |
021ab6f0 | 1875 | struct packed_git *p = preq->target; |
fe72d420 | 1876 | char *tmp_idx; |
9ae97018 | 1877 | size_t len; |
d3180279 | 1878 | struct child_process ip = CHILD_PROCESS_INIT; |
fe72d420 | 1879 | const char *ip_argv[8]; |
2264dfa5 | 1880 | |
fe72d420 | 1881 | close_pack_index(p); |
2264dfa5 | 1882 | |
3065274c SP |
1883 | fclose(preq->packfile); |
1884 | preq->packfile = NULL; | |
2264dfa5 TRC |
1885 | |
1886 | lst = preq->lst; | |
021ab6f0 | 1887 | while (*lst != p) |
2264dfa5 TRC |
1888 | lst = &((*lst)->next); |
1889 | *lst = (*lst)->next; | |
1890 | ||
9ae97018 JK |
1891 | if (!strip_suffix(preq->tmpfile, ".pack.temp", &len)) |
1892 | die("BUG: pack tmpfile does not end in .pack.temp?"); | |
1893 | tmp_idx = xstrfmt("%.*s.idx.temp", (int)len, preq->tmpfile); | |
fe72d420 SP |
1894 | |
1895 | ip_argv[0] = "index-pack"; | |
1896 | ip_argv[1] = "-o"; | |
1897 | ip_argv[2] = tmp_idx; | |
1898 | ip_argv[3] = preq->tmpfile; | |
1899 | ip_argv[4] = NULL; | |
1900 | ||
fe72d420 SP |
1901 | ip.argv = ip_argv; |
1902 | ip.git_cmd = 1; | |
1903 | ip.no_stdin = 1; | |
1904 | ip.no_stdout = 1; | |
1905 | ||
1906 | if (run_command(&ip)) { | |
1907 | unlink(preq->tmpfile); | |
1908 | unlink(tmp_idx); | |
1909 | free(tmp_idx); | |
2264dfa5 | 1910 | return -1; |
fe72d420 SP |
1911 | } |
1912 | ||
1913 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1914 | |
cb5add58 JH |
1915 | if (finalize_object_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1916 | || finalize_object_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
fe72d420 | 1917 | free(tmp_idx); |
2264dfa5 | 1918 | return -1; |
fe72d420 | 1919 | } |
2264dfa5 | 1920 | |
fe72d420 SP |
1921 | install_packed_git(p); |
1922 | free(tmp_idx); | |
2264dfa5 TRC |
1923 | return 0; |
1924 | } | |
1925 | ||
1926 | struct http_pack_request *new_http_pack_request( | |
1927 | struct packed_git *target, const char *base_url) | |
1928 | { | |
f8117f55 | 1929 | off_t prev_posn = 0; |
2264dfa5 TRC |
1930 | struct strbuf buf = STRBUF_INIT; |
1931 | struct http_pack_request *preq; | |
1932 | ||
ec99c9a8 | 1933 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1934 | preq->target = target; |
2264dfa5 TRC |
1935 | |
1936 | end_url_with_slash(&buf, base_url); | |
1937 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1938 | sha1_to_hex(target->sha1)); | |
bb99190e | 1939 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1940 | |
90d05713 TRC |
1941 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1942 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1943 | preq->packfile = fopen(preq->tmpfile, "a"); |
1944 | if (!preq->packfile) { | |
1945 | error("Unable to open local file %s for pack", | |
1946 | preq->tmpfile); | |
1947 | goto abort; | |
1948 | } | |
1949 | ||
1950 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
1951 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
1952 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1953 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1954 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1955 | no_pragma_header); | |
1956 | ||
1957 | /* | |
1958 | * If there is data present from a previous transfer attempt, | |
1959 | * resume where it left off | |
1960 | */ | |
f8117f55 | 1961 | prev_posn = ftello(preq->packfile); |
2264dfa5 TRC |
1962 | if (prev_posn>0) { |
1963 | if (http_is_verbose) | |
1964 | fprintf(stderr, | |
838ecf0b RJ |
1965 | "Resuming fetch of pack %s at byte %"PRIuMAX"\n", |
1966 | sha1_to_hex(target->sha1), (uintmax_t)prev_posn); | |
835c4d36 | 1967 | http_opt_request_remainder(preq->slot->curl, prev_posn); |
2264dfa5 TRC |
1968 | } |
1969 | ||
1970 | return preq; | |
1971 | ||
1972 | abort: | |
bb99190e | 1973 | free(preq->url); |
5ae9ebfd | 1974 | free(preq); |
2264dfa5 TRC |
1975 | return NULL; |
1976 | } | |
5424bc55 TRC |
1977 | |
1978 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1979 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1980 | void *data) |
1981 | { | |
1982 | unsigned char expn[4096]; | |
1983 | size_t size = eltsize * nmemb; | |
1984 | int posn = 0; | |
17966c0a EW |
1985 | struct http_object_request *freq = data; |
1986 | struct active_request_slot *slot = freq->slot; | |
1987 | ||
1988 | if (slot) { | |
1989 | CURLcode c = curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, | |
1990 | &slot->http_code); | |
1991 | if (c != CURLE_OK) | |
1992 | die("BUG: curl_easy_getinfo for HTTP code failed: %s", | |
1993 | curl_easy_strerror(c)); | |
1994 | if (slot->http_code >= 400) | |
1995 | return size; | |
1996 | } | |
1997 | ||
5424bc55 TRC |
1998 | do { |
1999 | ssize_t retval = xwrite(freq->localfile, | |
2000 | (char *) ptr + posn, size - posn); | |
2001 | if (retval < 0) | |
2002 | return posn; | |
2003 | posn += retval; | |
2004 | } while (posn < size); | |
2005 | ||
2006 | freq->stream.avail_in = size; | |
a04ff3ec | 2007 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
2008 | do { |
2009 | freq->stream.next_out = expn; | |
2010 | freq->stream.avail_out = sizeof(expn); | |
2011 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
2012 | git_SHA1_Update(&freq->c, expn, | |
2013 | sizeof(expn) - freq->stream.avail_out); | |
2014 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
5424bc55 TRC |
2015 | return size; |
2016 | } | |
2017 | ||
2018 | struct http_object_request *new_http_object_request(const char *base_url, | |
2019 | unsigned char *sha1) | |
2020 | { | |
2021 | char *hex = sha1_to_hex(sha1); | |
30d6c6ea | 2022 | const char *filename; |
5424bc55 | 2023 | char prevfile[PATH_MAX]; |
5424bc55 | 2024 | int prevlocal; |
a04ff3ec | 2025 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 | 2026 | ssize_t prev_read = 0; |
f8117f55 | 2027 | off_t prev_posn = 0; |
5424bc55 TRC |
2028 | struct http_object_request *freq; |
2029 | ||
ec99c9a8 | 2030 | freq = xcalloc(1, sizeof(*freq)); |
5424bc55 TRC |
2031 | hashcpy(freq->sha1, sha1); |
2032 | freq->localfile = -1; | |
2033 | ||
2034 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
2035 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
2036 | "%s.temp", filename); | |
2037 | ||
2038 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
2039 | unlink_or_warn(prevfile); | |
2040 | rename(freq->tmpfile, prevfile); | |
2041 | unlink_or_warn(freq->tmpfile); | |
2042 | ||
2043 | if (freq->localfile != -1) | |
2044 | error("fd leakage in start: %d", freq->localfile); | |
2045 | freq->localfile = open(freq->tmpfile, | |
2046 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
2047 | /* | |
2048 | * This could have failed due to the "lazy directory creation"; | |
2049 | * try to mkdir the last path component. | |
2050 | */ | |
2051 | if (freq->localfile < 0 && errno == ENOENT) { | |
2052 | char *dir = strrchr(freq->tmpfile, '/'); | |
2053 | if (dir) { | |
2054 | *dir = 0; | |
2055 | mkdir(freq->tmpfile, 0777); | |
2056 | *dir = '/'; | |
2057 | } | |
2058 | freq->localfile = open(freq->tmpfile, | |
2059 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
2060 | } | |
2061 | ||
2062 | if (freq->localfile < 0) { | |
d2e255ee | 2063 | error_errno("Couldn't create temporary file %s", freq->tmpfile); |
5424bc55 TRC |
2064 | goto abort; |
2065 | } | |
2066 | ||
5424bc55 TRC |
2067 | git_inflate_init(&freq->stream); |
2068 | ||
2069 | git_SHA1_Init(&freq->c); | |
2070 | ||
bb99190e | 2071 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
2072 | |
2073 | /* | |
2074 | * If a previous temp file is present, process what was already | |
2075 | * fetched. | |
2076 | */ | |
2077 | prevlocal = open(prevfile, O_RDONLY); | |
2078 | if (prevlocal != -1) { | |
2079 | do { | |
2080 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
2081 | if (prev_read>0) { | |
2082 | if (fwrite_sha1_file(prev_buf, | |
2083 | 1, | |
2084 | prev_read, | |
2085 | freq) == prev_read) { | |
2086 | prev_posn += prev_read; | |
2087 | } else { | |
2088 | prev_read = -1; | |
2089 | } | |
2090 | } | |
2091 | } while (prev_read > 0); | |
2092 | close(prevlocal); | |
2093 | } | |
2094 | unlink_or_warn(prevfile); | |
2095 | ||
2096 | /* | |
2097 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
2098 | * file; also rewind to the beginning of the local file. | |
2099 | */ | |
2100 | if (prev_read == -1) { | |
2101 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
2102 | git_inflate_init(&freq->stream); | |
2103 | git_SHA1_Init(&freq->c); | |
2104 | if (prev_posn>0) { | |
2105 | prev_posn = 0; | |
2106 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 2107 | if (ftruncate(freq->localfile, 0) < 0) { |
d2e255ee NTND |
2108 | error_errno("Couldn't truncate temporary file %s", |
2109 | freq->tmpfile); | |
0c4f21e4 JL |
2110 | goto abort; |
2111 | } | |
5424bc55 TRC |
2112 | } |
2113 | } | |
2114 | ||
2115 | freq->slot = get_active_slot(); | |
2116 | ||
2117 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
17966c0a | 2118 | curl_easy_setopt(freq->slot->curl, CURLOPT_FAILONERROR, 0); |
5424bc55 TRC |
2119 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); |
2120 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 2121 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
2122 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
2123 | ||
2124 | /* | |
2125 | * If we have successfully processed data from a previous fetch | |
2126 | * attempt, only fetch the data we don't already have. | |
2127 | */ | |
2128 | if (prev_posn>0) { | |
2129 | if (http_is_verbose) | |
2130 | fprintf(stderr, | |
838ecf0b RJ |
2131 | "Resuming fetch of object %s at byte %"PRIuMAX"\n", |
2132 | hex, (uintmax_t)prev_posn); | |
835c4d36 | 2133 | http_opt_request_remainder(freq->slot->curl, prev_posn); |
5424bc55 TRC |
2134 | } |
2135 | ||
2136 | return freq; | |
2137 | ||
5424bc55 | 2138 | abort: |
bb99190e | 2139 | free(freq->url); |
5424bc55 TRC |
2140 | free(freq); |
2141 | return NULL; | |
2142 | } | |
2143 | ||
2144 | void process_http_object_request(struct http_object_request *freq) | |
2145 | { | |
2146 | if (freq->slot == NULL) | |
2147 | return; | |
2148 | freq->curl_result = freq->slot->curl_result; | |
2149 | freq->http_code = freq->slot->http_code; | |
2150 | freq->slot = NULL; | |
2151 | } | |
2152 | ||
2153 | int finish_http_object_request(struct http_object_request *freq) | |
2154 | { | |
2155 | struct stat st; | |
2156 | ||
2157 | close(freq->localfile); | |
2158 | freq->localfile = -1; | |
2159 | ||
2160 | process_http_object_request(freq); | |
2161 | ||
2162 | if (freq->http_code == 416) { | |
bd757c18 | 2163 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
2164 | } else if (freq->curl_result != CURLE_OK) { |
2165 | if (stat(freq->tmpfile, &st) == 0) | |
2166 | if (st.st_size == 0) | |
2167 | unlink_or_warn(freq->tmpfile); | |
2168 | return -1; | |
2169 | } | |
2170 | ||
2171 | git_inflate_end(&freq->stream); | |
2172 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
2173 | if (freq->zret != Z_STREAM_END) { | |
2174 | unlink_or_warn(freq->tmpfile); | |
2175 | return -1; | |
2176 | } | |
2177 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
2178 | unlink_or_warn(freq->tmpfile); | |
2179 | return -1; | |
2180 | } | |
2181 | freq->rename = | |
cb5add58 | 2182 | finalize_object_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
2183 | |
2184 | return freq->rename; | |
2185 | } | |
2186 | ||
2187 | void abort_http_object_request(struct http_object_request *freq) | |
2188 | { | |
2189 | unlink_or_warn(freq->tmpfile); | |
2190 | ||
2191 | release_http_object_request(freq); | |
2192 | } | |
2193 | ||
2194 | void release_http_object_request(struct http_object_request *freq) | |
2195 | { | |
2196 | if (freq->localfile != -1) { | |
2197 | close(freq->localfile); | |
2198 | freq->localfile = -1; | |
2199 | } | |
2200 | if (freq->url != NULL) { | |
2201 | free(freq->url); | |
2202 | freq->url = NULL; | |
2203 | } | |
4b9fa0e3 TRC |
2204 | if (freq->slot != NULL) { |
2205 | freq->slot->callback_func = NULL; | |
2206 | freq->slot->callback_data = NULL; | |
2207 | release_active_slot(freq->slot); | |
2208 | freq->slot = NULL; | |
2209 | } | |
5424bc55 | 2210 | } |