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