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1c4b6604 | 1 | #include "git-compat-util.h" |
29508e1e | 2 | #include "http.h" |
b2141fc1 | 3 | #include "config.h" |
2264dfa5 | 4 | #include "pack.h" |
de1a2fdd | 5 | #include "sideband.h" |
fe72d420 | 6 | #include "run-command.h" |
f39f72d8 | 7 | #include "url.h" |
6a56993b | 8 | #include "urlmatch.h" |
148bb6a7 | 9 | #include "credential.h" |
745c7c8e | 10 | #include "version.h" |
047ec602 | 11 | #include "pkt-line.h" |
93f7d910 | 12 | #include "gettext.h" |
f4113cac | 13 | #include "transport.h" |
4f39cd82 | 14 | #include "packfile.h" |
19113a26 | 15 | #include "protocol.h" |
83411783 | 16 | #include "string-list.h" |
a80d72db | 17 | #include "object-store.h" |
29508e1e | 18 | |
74c682d3 | 19 | static struct trace_key trace_curl = TRACE_KEY_INIT(CURL); |
8ba18e6f | 20 | static int trace_curl_data = 1; |
83411783 | 21 | static struct string_list cookies_to_redact = STRING_LIST_INIT_DUP; |
c915f11e EW |
22 | #if LIBCURL_VERSION_NUM >= 0x070a08 |
23 | long int git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER; | |
24 | #else | |
25 | long int git_curl_ipresolve; | |
26 | #endif | |
4251ccbd | 27 | int active_requests; |
e9176745 | 28 | int http_is_verbose; |
37ee680d | 29 | ssize_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 30 | |
b8ac9230 MS |
31 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
32 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
33 | #endif | |
34 | ||
ad75ebe5 TRC |
35 | static int min_curl_sessions = 1; |
36 | static int curl_session_count; | |
29508e1e | 37 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
38 | static int max_requests = -1; |
39 | static CURLM *curlm; | |
29508e1e NH |
40 | #endif |
41 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 42 | static CURL *curl_default; |
29508e1e | 43 | #endif |
5424bc55 TRC |
44 | |
45 | #define PREV_BUF_SIZE 4096 | |
5424bc55 | 46 | |
29508e1e NH |
47 | char curl_errorstr[CURL_ERROR_SIZE]; |
48 | ||
cc3530e8 | 49 | static int curl_ssl_verify = -1; |
4bc444eb | 50 | static int curl_ssl_try; |
d73019fe | 51 | static const char *curl_http_version = NULL; |
4251ccbd | 52 | static const char *ssl_cert; |
f6f2a9e4 | 53 | static const char *ssl_cipherlist; |
01861cb7 EP |
54 | static const char *ssl_version; |
55 | static struct { | |
56 | const char *name; | |
57 | long ssl_version; | |
58 | } sslversions[] = { | |
59 | { "sslv2", CURL_SSLVERSION_SSLv2 }, | |
60 | { "sslv3", CURL_SSLVERSION_SSLv3 }, | |
61 | { "tlsv1", CURL_SSLVERSION_TLSv1 }, | |
62 | #if LIBCURL_VERSION_NUM >= 0x072200 | |
63 | { "tlsv1.0", CURL_SSLVERSION_TLSv1_0 }, | |
64 | { "tlsv1.1", CURL_SSLVERSION_TLSv1_1 }, | |
65 | { "tlsv1.2", CURL_SSLVERSION_TLSv1_2 }, | |
66 | #endif | |
d81b651f LV |
67 | #if LIBCURL_VERSION_NUM >= 0x073400 |
68 | { "tlsv1.3", CURL_SSLVERSION_TLSv1_3 }, | |
69 | #endif | |
01861cb7 | 70 | }; |
ef52aafa | 71 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 72 | static const char *ssl_key; |
29508e1e NH |
73 | #endif |
74 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 75 | static const char *ssl_capath; |
29508e1e | 76 | #endif |
b8fd6008 RJ |
77 | #if LIBCURL_VERSION_NUM >= 0x071304 |
78 | static const char *curl_no_proxy; | |
79 | #endif | |
aeff8a61 CE |
80 | #if LIBCURL_VERSION_NUM >= 0x072c00 |
81 | static const char *ssl_pinnedkey; | |
82 | #endif | |
4251ccbd | 83 | static const char *ssl_cainfo; |
cc3530e8 MH |
84 | static long curl_low_speed_limit = -1; |
85 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
86 | static int curl_ftp_no_epsv; |
87 | static const char *curl_http_proxy; | |
ef976395 KF |
88 | static const char *http_proxy_authmethod; |
89 | static struct { | |
90 | const char *name; | |
91 | long curlauth_param; | |
92 | } proxy_authmethods[] = { | |
93 | { "basic", CURLAUTH_BASIC }, | |
94 | { "digest", CURLAUTH_DIGEST }, | |
95 | { "negotiate", CURLAUTH_GSSNEGOTIATE }, | |
96 | { "ntlm", CURLAUTH_NTLM }, | |
97 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY | |
98 | { "anyauth", CURLAUTH_ANY }, | |
99 | #endif | |
100 | /* | |
101 | * CURLAUTH_DIGEST_IE has no corresponding command-line option in | |
102 | * curl(1) and is not included in CURLAUTH_ANY, so we leave it out | |
103 | * here, too | |
104 | */ | |
105 | }; | |
dd5df538 | 106 | #ifdef CURLGSSAPI_DELEGATION_FLAG |
26a7b234 PS |
107 | static const char *curl_deleg; |
108 | static struct { | |
109 | const char *name; | |
110 | long curl_deleg_param; | |
111 | } curl_deleg_levels[] = { | |
112 | { "none", CURLGSSAPI_DELEGATION_NONE }, | |
113 | { "policy", CURLGSSAPI_DELEGATION_POLICY_FLAG }, | |
114 | { "always", CURLGSSAPI_DELEGATION_FLAG }, | |
115 | }; | |
116 | #endif | |
117 | ||
372370f1 KF |
118 | static struct credential proxy_auth = CREDENTIAL_INIT; |
119 | static const char *curl_proxyuserpwd; | |
bcfb95dd | 120 | static const char *curl_cookie_file; |
912b2acf | 121 | static int curl_save_cookies; |
2501aff8 | 122 | struct credential http_auth = CREDENTIAL_INIT; |
a4ddbc33 | 123 | static int http_proactive_auth; |
b1d1058c | 124 | static const char *user_agent; |
40a18fc7 | 125 | static int curl_empty_auth = -1; |
29508e1e | 126 | |
50d34137 JK |
127 | enum http_follow_config http_follow_config = HTTP_FOLLOW_INITIAL; |
128 | ||
30dd9163 ML |
129 | #if LIBCURL_VERSION_NUM >= 0x071700 |
130 | /* Use CURLOPT_KEYPASSWD as is */ | |
131 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
132 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
133 | #else | |
134 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
135 | #endif | |
136 | ||
148bb6a7 | 137 | static struct credential cert_auth = CREDENTIAL_INIT; |
30dd9163 | 138 | static int ssl_cert_password_required; |
4dbe6646 | 139 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
140 | static unsigned long http_auth_methods = CURLAUTH_ANY; | |
40a18fc7 JK |
141 | static int http_auth_methods_restricted; |
142 | /* Modes for which empty_auth cannot actually help us. */ | |
143 | static unsigned long empty_auth_useless = | |
144 | CURLAUTH_BASIC | |
145 | #ifdef CURLAUTH_DIGEST_IE | |
146 | | CURLAUTH_DIGEST_IE | |
147 | #endif | |
148 | | CURLAUTH_DIGEST; | |
4dbe6646 | 149 | #endif |
30dd9163 | 150 | |
cc3530e8 | 151 | static struct curl_slist *pragma_header; |
5424bc55 | 152 | static struct curl_slist *no_pragma_header; |
8cb01e2f | 153 | static struct curl_slist *extra_http_headers; |
e9176745 | 154 | |
4251ccbd | 155 | static struct active_request_slot *active_queue_head; |
29508e1e | 156 | |
f18604bb YE |
157 | static char *cached_accept_language; |
158 | ||
21084e84 JS |
159 | static char *http_ssl_backend; |
160 | ||
93aef7c7 | 161 | static int http_schannel_check_revoke = 1; |
b67d40ad JS |
162 | /* |
163 | * With the backend being set to `schannel`, setting sslCAinfo would override | |
164 | * the Certificate Store in cURL v7.60.0 and later, which is not what we want | |
165 | * by default. | |
166 | */ | |
167 | static int http_schannel_use_ssl_cainfo; | |
93aef7c7 | 168 | |
a04ff3ec | 169 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
170 | { |
171 | size_t size = eltsize * nmemb; | |
f444e528 JH |
172 | struct buffer *buffer = buffer_; |
173 | ||
028c2976 MH |
174 | if (size > buffer->buf.len - buffer->posn) |
175 | size = buffer->buf.len - buffer->posn; | |
176 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 177 | buffer->posn += size; |
028c2976 | 178 | |
5c3d5a38 | 179 | return size / eltsize; |
29508e1e NH |
180 | } |
181 | ||
3944ba0c MS |
182 | #ifndef NO_CURL_IOCTL |
183 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
184 | { | |
185 | struct buffer *buffer = clientp; | |
186 | ||
187 | switch (cmd) { | |
188 | case CURLIOCMD_NOP: | |
189 | return CURLIOE_OK; | |
190 | ||
191 | case CURLIOCMD_RESTARTREAD: | |
192 | buffer->posn = 0; | |
193 | return CURLIOE_OK; | |
194 | ||
195 | default: | |
196 | return CURLIOE_UNKNOWNCMD; | |
197 | } | |
198 | } | |
199 | #endif | |
200 | ||
a04ff3ec | 201 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
202 | { |
203 | size_t size = eltsize * nmemb; | |
f444e528 JH |
204 | struct strbuf *buffer = buffer_; |
205 | ||
028c2976 | 206 | strbuf_add(buffer, ptr, size); |
5c3d5a38 | 207 | return nmemb; |
29508e1e NH |
208 | } |
209 | ||
a04ff3ec | 210 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 211 | { |
5c3d5a38 | 212 | return nmemb; |
29508e1e NH |
213 | } |
214 | ||
b90a3d7b JH |
215 | static void closedown_active_slot(struct active_request_slot *slot) |
216 | { | |
217 | active_requests--; | |
218 | slot->in_use = 0; | |
219 | } | |
220 | ||
221 | static void finish_active_slot(struct active_request_slot *slot) | |
222 | { | |
223 | closedown_active_slot(slot); | |
224 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); | |
225 | ||
226 | if (slot->finished != NULL) | |
227 | (*slot->finished) = 1; | |
228 | ||
229 | /* Store slot results so they can be read after the slot is reused */ | |
230 | if (slot->results != NULL) { | |
231 | slot->results->curl_result = slot->curl_result; | |
232 | slot->results->http_code = slot->http_code; | |
233 | #if LIBCURL_VERSION_NUM >= 0x070a08 | |
234 | curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL, | |
235 | &slot->results->auth_avail); | |
236 | #else | |
237 | slot->results->auth_avail = 0; | |
238 | #endif | |
372370f1 KF |
239 | |
240 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CONNECTCODE, | |
241 | &slot->results->http_connectcode); | |
b90a3d7b JH |
242 | } |
243 | ||
244 | /* Run callback if appropriate */ | |
245 | if (slot->callback_func != NULL) | |
246 | slot->callback_func(slot->callback_data); | |
247 | } | |
248 | ||
d8b6b84d EW |
249 | static void xmulti_remove_handle(struct active_request_slot *slot) |
250 | { | |
251 | #ifdef USE_CURL_MULTI | |
252 | curl_multi_remove_handle(curlm, slot->curl); | |
253 | #endif | |
254 | } | |
255 | ||
29508e1e NH |
256 | #ifdef USE_CURL_MULTI |
257 | static void process_curl_messages(void) | |
258 | { | |
259 | int num_messages; | |
260 | struct active_request_slot *slot; | |
261 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
262 | ||
263 | while (curl_message != NULL) { | |
264 | if (curl_message->msg == CURLMSG_DONE) { | |
265 | int curl_result = curl_message->data.result; | |
266 | slot = active_queue_head; | |
267 | while (slot != NULL && | |
268 | slot->curl != curl_message->easy_handle) | |
269 | slot = slot->next; | |
270 | if (slot != NULL) { | |
d8b6b84d | 271 | xmulti_remove_handle(slot); |
29508e1e NH |
272 | slot->curl_result = curl_result; |
273 | finish_active_slot(slot); | |
274 | } else { | |
275 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
276 | } | |
277 | } else { | |
278 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
279 | (int)curl_message->msg); | |
280 | } | |
281 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
282 | } | |
283 | } | |
284 | #endif | |
285 | ||
ef90d6d4 | 286 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e | 287 | { |
d73019fe FC |
288 | if (!strcmp("http.version", var)) { |
289 | return git_config_string(&curl_http_version, var, value); | |
290 | } | |
29508e1e | 291 | if (!strcmp("http.sslverify", var)) { |
7059cd99 | 292 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
293 | return 0; |
294 | } | |
f6f2a9e4 LKS |
295 | if (!strcmp("http.sslcipherlist", var)) |
296 | return git_config_string(&ssl_cipherlist, var, value); | |
01861cb7 EP |
297 | if (!strcmp("http.sslversion", var)) |
298 | return git_config_string(&ssl_version, var, value); | |
7059cd99 | 299 | if (!strcmp("http.sslcert", var)) |
8d154964 | 300 | return git_config_pathname(&ssl_cert, var, value); |
ef52aafa | 301 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 302 | if (!strcmp("http.sslkey", var)) |
8d154964 | 303 | return git_config_pathname(&ssl_key, var, value); |
29508e1e NH |
304 | #endif |
305 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 306 | if (!strcmp("http.sslcapath", var)) |
bf9acba2 | 307 | return git_config_pathname(&ssl_capath, var, value); |
29508e1e | 308 | #endif |
7059cd99 | 309 | if (!strcmp("http.sslcainfo", var)) |
bf9acba2 | 310 | return git_config_pathname(&ssl_cainfo, var, value); |
754ae192 | 311 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
3f4ccd2b | 312 | ssl_cert_password_required = git_config_bool(var, value); |
754ae192 ML |
313 | return 0; |
314 | } | |
4bc444eb MV |
315 | if (!strcmp("http.ssltry", var)) { |
316 | curl_ssl_try = git_config_bool(var, value); | |
317 | return 0; | |
318 | } | |
21084e84 JS |
319 | if (!strcmp("http.sslbackend", var)) { |
320 | free(http_ssl_backend); | |
321 | http_ssl_backend = xstrdup_or_null(value); | |
322 | return 0; | |
323 | } | |
324 | ||
93aef7c7 BF |
325 | if (!strcmp("http.schannelcheckrevoke", var)) { |
326 | http_schannel_check_revoke = git_config_bool(var, value); | |
327 | return 0; | |
328 | } | |
329 | ||
b67d40ad JS |
330 | if (!strcmp("http.schannelusesslcainfo", var)) { |
331 | http_schannel_use_ssl_cainfo = git_config_bool(var, value); | |
332 | return 0; | |
333 | } | |
334 | ||
ad75ebe5 TRC |
335 | if (!strcmp("http.minsessions", var)) { |
336 | min_curl_sessions = git_config_int(var, value); | |
337 | #ifndef USE_CURL_MULTI | |
338 | if (min_curl_sessions > 1) | |
339 | min_curl_sessions = 1; | |
340 | #endif | |
341 | return 0; | |
342 | } | |
a6080a0a | 343 | #ifdef USE_CURL_MULTI |
29508e1e | 344 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 345 | max_requests = git_config_int(var, value); |
29508e1e NH |
346 | return 0; |
347 | } | |
348 | #endif | |
29508e1e | 349 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 350 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
351 | return 0; |
352 | } | |
353 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 354 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
355 | return 0; |
356 | } | |
357 | ||
3ea099d4 SK |
358 | if (!strcmp("http.noepsv", var)) { |
359 | curl_ftp_no_epsv = git_config_bool(var, value); | |
360 | return 0; | |
361 | } | |
7059cd99 JH |
362 | if (!strcmp("http.proxy", var)) |
363 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 364 | |
ef976395 KF |
365 | if (!strcmp("http.proxyauthmethod", var)) |
366 | return git_config_string(&http_proxy_authmethod, var, value); | |
367 | ||
bcfb95dd | 368 | if (!strcmp("http.cookiefile", var)) |
e5a39ad8 | 369 | return git_config_pathname(&curl_cookie_file, var, value); |
912b2acf DB |
370 | if (!strcmp("http.savecookies", var)) { |
371 | curl_save_cookies = git_config_bool(var, value); | |
372 | return 0; | |
373 | } | |
bcfb95dd | 374 | |
de1a2fdd | 375 | if (!strcmp("http.postbuffer", var)) { |
37ee680d DT |
376 | http_post_buffer = git_config_ssize_t(var, value); |
377 | if (http_post_buffer < 0) | |
378 | warning(_("negative value for http.postbuffer; defaulting to %d"), LARGE_PACKET_MAX); | |
de1a2fdd SP |
379 | if (http_post_buffer < LARGE_PACKET_MAX) |
380 | http_post_buffer = LARGE_PACKET_MAX; | |
381 | return 0; | |
382 | } | |
383 | ||
b1d1058c SO |
384 | if (!strcmp("http.useragent", var)) |
385 | return git_config_string(&user_agent, var, value); | |
386 | ||
121061f6 | 387 | if (!strcmp("http.emptyauth", var)) { |
40a18fc7 JK |
388 | if (value && !strcmp("auto", value)) |
389 | curl_empty_auth = -1; | |
390 | else | |
391 | curl_empty_auth = git_config_bool(var, value); | |
121061f6 | 392 | return 0; |
393 | } | |
394 | ||
26a7b234 | 395 | if (!strcmp("http.delegation", var)) { |
dd5df538 | 396 | #ifdef CURLGSSAPI_DELEGATION_FLAG |
26a7b234 PS |
397 | return git_config_string(&curl_deleg, var, value); |
398 | #else | |
399 | warning(_("Delegation control is not supported with cURL < 7.22.0")); | |
400 | return 0; | |
401 | #endif | |
402 | } | |
403 | ||
aeff8a61 CE |
404 | if (!strcmp("http.pinnedpubkey", var)) { |
405 | #if LIBCURL_VERSION_NUM >= 0x072c00 | |
406 | return git_config_pathname(&ssl_pinnedkey, var, value); | |
407 | #else | |
408 | warning(_("Public key pinning not supported with cURL < 7.44.0")); | |
409 | return 0; | |
410 | #endif | |
411 | } | |
e79112d2 | 412 | |
8cb01e2f JS |
413 | if (!strcmp("http.extraheader", var)) { |
414 | if (!value) { | |
415 | return config_error_nonbool(var); | |
416 | } else if (!*value) { | |
417 | curl_slist_free_all(extra_http_headers); | |
418 | extra_http_headers = NULL; | |
419 | } else { | |
420 | extra_http_headers = | |
421 | curl_slist_append(extra_http_headers, value); | |
422 | } | |
423 | return 0; | |
424 | } | |
425 | ||
50d34137 JK |
426 | if (!strcmp("http.followredirects", var)) { |
427 | if (value && !strcmp(value, "initial")) | |
428 | http_follow_config = HTTP_FOLLOW_INITIAL; | |
429 | else if (git_config_bool(var, value)) | |
430 | http_follow_config = HTTP_FOLLOW_ALWAYS; | |
431 | else | |
432 | http_follow_config = HTTP_FOLLOW_NONE; | |
433 | return 0; | |
434 | } | |
435 | ||
29508e1e | 436 | /* Fall back on the default ones */ |
ef90d6d4 | 437 | return git_default_config(var, value, cb); |
29508e1e NH |
438 | } |
439 | ||
40a18fc7 JK |
440 | static int curl_empty_auth_enabled(void) |
441 | { | |
442 | if (curl_empty_auth >= 0) | |
443 | return curl_empty_auth; | |
444 | ||
445 | #ifndef LIBCURL_CAN_HANDLE_AUTH_ANY | |
446 | /* | |
447 | * Our libcurl is too old to do AUTH_ANY in the first place; | |
448 | * just default to turning the feature off. | |
449 | */ | |
450 | #else | |
451 | /* | |
452 | * In the automatic case, kick in the empty-auth | |
453 | * hack as long as we would potentially try some | |
454 | * method more exotic than "Basic" or "Digest". | |
455 | * | |
456 | * But only do this when this is our second or | |
457 | * subsequent request, as by then we know what | |
458 | * methods are available. | |
459 | */ | |
460 | if (http_auth_methods_restricted && | |
461 | (http_auth_methods & ~empty_auth_useless)) | |
462 | return 1; | |
463 | #endif | |
464 | return 0; | |
465 | } | |
466 | ||
c33976cb JH |
467 | static void init_curl_http_auth(CURL *result) |
468 | { | |
5275c308 | 469 | if (!http_auth.username || !*http_auth.username) { |
40a18fc7 | 470 | if (curl_empty_auth_enabled()) |
121061f6 | 471 | curl_easy_setopt(result, CURLOPT_USERPWD, ":"); |
6f4c347c | 472 | return; |
121061f6 | 473 | } |
6f4c347c JK |
474 | |
475 | credential_fill(&http_auth); | |
476 | ||
477 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
478 | curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username); | |
479 | curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password); | |
480 | #else | |
481 | { | |
aa0834a0 | 482 | static struct strbuf up = STRBUF_INIT; |
a94cf2cb BC |
483 | /* |
484 | * Note that we assume we only ever have a single set of | |
485 | * credentials in a given program run, so we do not have | |
486 | * to worry about updating this buffer, only setting its | |
487 | * initial value. | |
488 | */ | |
489 | if (!up.len) | |
490 | strbuf_addf(&up, "%s:%s", | |
491 | http_auth.username, http_auth.password); | |
aa0834a0 | 492 | curl_easy_setopt(result, CURLOPT_USERPWD, up.buf); |
c33976cb | 493 | } |
6f4c347c | 494 | #endif |
c33976cb JH |
495 | } |
496 | ||
ef976395 KF |
497 | /* *var must be free-able */ |
498 | static void var_override(const char **var, char *value) | |
499 | { | |
500 | if (value) { | |
501 | free((void *)*var); | |
502 | *var = xstrdup(value); | |
503 | } | |
504 | } | |
505 | ||
372370f1 KF |
506 | static void set_proxyauth_name_password(CURL *result) |
507 | { | |
508 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
509 | curl_easy_setopt(result, CURLOPT_PROXYUSERNAME, | |
510 | proxy_auth.username); | |
511 | curl_easy_setopt(result, CURLOPT_PROXYPASSWORD, | |
512 | proxy_auth.password); | |
513 | #else | |
514 | struct strbuf s = STRBUF_INIT; | |
515 | ||
c2694952 MD |
516 | strbuf_addstr_urlencode(&s, proxy_auth.username, |
517 | is_rfc3986_unreserved); | |
372370f1 | 518 | strbuf_addch(&s, ':'); |
c2694952 MD |
519 | strbuf_addstr_urlencode(&s, proxy_auth.password, |
520 | is_rfc3986_unreserved); | |
372370f1 KF |
521 | curl_proxyuserpwd = strbuf_detach(&s, NULL); |
522 | curl_easy_setopt(result, CURLOPT_PROXYUSERPWD, curl_proxyuserpwd); | |
523 | #endif | |
524 | } | |
525 | ||
ef976395 KF |
526 | static void init_curl_proxy_auth(CURL *result) |
527 | { | |
372370f1 KF |
528 | if (proxy_auth.username) { |
529 | if (!proxy_auth.password) | |
530 | credential_fill(&proxy_auth); | |
531 | set_proxyauth_name_password(result); | |
532 | } | |
533 | ||
ef976395 KF |
534 | var_override(&http_proxy_authmethod, getenv("GIT_HTTP_PROXY_AUTHMETHOD")); |
535 | ||
536 | #if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */ | |
537 | if (http_proxy_authmethod) { | |
538 | int i; | |
539 | for (i = 0; i < ARRAY_SIZE(proxy_authmethods); i++) { | |
540 | if (!strcmp(http_proxy_authmethod, proxy_authmethods[i].name)) { | |
541 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, | |
542 | proxy_authmethods[i].curlauth_param); | |
543 | break; | |
544 | } | |
545 | } | |
546 | if (i == ARRAY_SIZE(proxy_authmethods)) { | |
547 | warning("unsupported proxy authentication method %s: using anyauth", | |
548 | http_proxy_authmethod); | |
549 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); | |
550 | } | |
551 | } | |
552 | else | |
553 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); | |
554 | #endif | |
555 | } | |
556 | ||
30dd9163 ML |
557 | static int has_cert_password(void) |
558 | { | |
30dd9163 ML |
559 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
560 | return 0; | |
148bb6a7 JK |
561 | if (!cert_auth.password) { |
562 | cert_auth.protocol = xstrdup("cert"); | |
75e9a405 | 563 | cert_auth.username = xstrdup(""); |
148bb6a7 JK |
564 | cert_auth.path = xstrdup(ssl_cert); |
565 | credential_fill(&cert_auth); | |
566 | } | |
567 | return 1; | |
30dd9163 ML |
568 | } |
569 | ||
47ce1153 JK |
570 | #if LIBCURL_VERSION_NUM >= 0x071900 |
571 | static void set_curl_keepalive(CURL *c) | |
572 | { | |
573 | curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1); | |
574 | } | |
575 | ||
576 | #elif LIBCURL_VERSION_NUM >= 0x071000 | |
a15d069a EW |
577 | static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type) |
578 | { | |
579 | int ka = 1; | |
580 | int rc; | |
581 | socklen_t len = (socklen_t)sizeof(ka); | |
582 | ||
583 | if (type != CURLSOCKTYPE_IPCXN) | |
584 | return 0; | |
585 | ||
586 | rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len); | |
587 | if (rc < 0) | |
d2e255ee | 588 | warning_errno("unable to set SO_KEEPALIVE on socket"); |
a15d069a EW |
589 | |
590 | return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */ | |
591 | } | |
592 | ||
47ce1153 JK |
593 | static void set_curl_keepalive(CURL *c) |
594 | { | |
595 | curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback); | |
596 | } | |
597 | ||
598 | #else | |
599 | static void set_curl_keepalive(CURL *c) | |
600 | { | |
601 | /* not supported on older curl versions */ | |
602 | } | |
603 | #endif | |
604 | ||
74c682d3 EP |
605 | static void redact_sensitive_header(struct strbuf *header) |
606 | { | |
607 | const char *sensitive_header; | |
608 | ||
609 | if (skip_prefix(header->buf, "Authorization:", &sensitive_header) || | |
610 | skip_prefix(header->buf, "Proxy-Authorization:", &sensitive_header)) { | |
611 | /* The first token is the type, which is OK to log */ | |
612 | while (isspace(*sensitive_header)) | |
613 | sensitive_header++; | |
614 | while (*sensitive_header && !isspace(*sensitive_header)) | |
615 | sensitive_header++; | |
616 | /* Everything else is opaque and possibly sensitive */ | |
617 | strbuf_setlen(header, sensitive_header - header->buf); | |
618 | strbuf_addstr(header, " <redacted>"); | |
83411783 JT |
619 | } else if (cookies_to_redact.nr && |
620 | skip_prefix(header->buf, "Cookie:", &sensitive_header)) { | |
621 | struct strbuf redacted_header = STRBUF_INIT; | |
622 | char *cookie; | |
623 | ||
624 | while (isspace(*sensitive_header)) | |
625 | sensitive_header++; | |
626 | ||
627 | /* | |
628 | * The contents of header starting from sensitive_header will | |
629 | * subsequently be overridden, so it is fine to mutate this | |
630 | * string (hence the assignment to "char *"). | |
631 | */ | |
632 | cookie = (char *) sensitive_header; | |
633 | ||
634 | while (cookie) { | |
635 | char *equals; | |
636 | char *semicolon = strstr(cookie, "; "); | |
637 | if (semicolon) | |
638 | *semicolon = 0; | |
639 | equals = strchrnul(cookie, '='); | |
640 | if (!equals) { | |
641 | /* invalid cookie, just append and continue */ | |
642 | strbuf_addstr(&redacted_header, cookie); | |
643 | continue; | |
644 | } | |
645 | *equals = 0; /* temporarily set to NUL for lookup */ | |
646 | if (string_list_lookup(&cookies_to_redact, cookie)) { | |
647 | strbuf_addstr(&redacted_header, cookie); | |
648 | strbuf_addstr(&redacted_header, "=<redacted>"); | |
649 | } else { | |
650 | *equals = '='; | |
651 | strbuf_addstr(&redacted_header, cookie); | |
652 | } | |
653 | if (semicolon) { | |
654 | /* | |
655 | * There are more cookies. (Or, for some | |
656 | * reason, the input string ends in "; ".) | |
657 | */ | |
658 | strbuf_addstr(&redacted_header, "; "); | |
659 | cookie = semicolon + strlen("; "); | |
660 | } else { | |
661 | cookie = NULL; | |
662 | } | |
663 | } | |
664 | ||
665 | strbuf_setlen(header, sensitive_header - header->buf); | |
666 | strbuf_addbuf(header, &redacted_header); | |
74c682d3 EP |
667 | } |
668 | } | |
669 | ||
670 | static void curl_dump_header(const char *text, unsigned char *ptr, size_t size, int hide_sensitive_header) | |
671 | { | |
672 | struct strbuf out = STRBUF_INIT; | |
673 | struct strbuf **headers, **header; | |
674 | ||
675 | strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n", | |
676 | text, (long)size, (long)size); | |
677 | trace_strbuf(&trace_curl, &out); | |
678 | strbuf_reset(&out); | |
679 | strbuf_add(&out, ptr, size); | |
680 | headers = strbuf_split_max(&out, '\n', 0); | |
681 | ||
682 | for (header = headers; *header; header++) { | |
683 | if (hide_sensitive_header) | |
684 | redact_sensitive_header(*header); | |
685 | strbuf_insert((*header), 0, text, strlen(text)); | |
686 | strbuf_insert((*header), strlen(text), ": ", 2); | |
687 | strbuf_rtrim((*header)); | |
688 | strbuf_addch((*header), '\n'); | |
689 | trace_strbuf(&trace_curl, (*header)); | |
690 | } | |
691 | strbuf_list_free(headers); | |
692 | strbuf_release(&out); | |
693 | } | |
694 | ||
695 | static void curl_dump_data(const char *text, unsigned char *ptr, size_t size) | |
696 | { | |
697 | size_t i; | |
698 | struct strbuf out = STRBUF_INIT; | |
699 | unsigned int width = 60; | |
700 | ||
701 | strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n", | |
702 | text, (long)size, (long)size); | |
703 | trace_strbuf(&trace_curl, &out); | |
704 | ||
705 | for (i = 0; i < size; i += width) { | |
706 | size_t w; | |
707 | ||
708 | strbuf_reset(&out); | |
709 | strbuf_addf(&out, "%s: ", text); | |
710 | for (w = 0; (w < width) && (i + w < size); w++) { | |
711 | unsigned char ch = ptr[i + w]; | |
712 | ||
713 | strbuf_addch(&out, | |
714 | (ch >= 0x20) && (ch < 0x80) | |
715 | ? ch : '.'); | |
716 | } | |
717 | strbuf_addch(&out, '\n'); | |
718 | trace_strbuf(&trace_curl, &out); | |
719 | } | |
720 | strbuf_release(&out); | |
721 | } | |
722 | ||
723 | static int curl_trace(CURL *handle, curl_infotype type, char *data, size_t size, void *userp) | |
724 | { | |
725 | const char *text; | |
726 | enum { NO_FILTER = 0, DO_FILTER = 1 }; | |
727 | ||
728 | switch (type) { | |
729 | case CURLINFO_TEXT: | |
730 | trace_printf_key(&trace_curl, "== Info: %s", data); | |
d0e99839 | 731 | break; |
74c682d3 EP |
732 | case CURLINFO_HEADER_OUT: |
733 | text = "=> Send header"; | |
734 | curl_dump_header(text, (unsigned char *)data, size, DO_FILTER); | |
735 | break; | |
736 | case CURLINFO_DATA_OUT: | |
8ba18e6f JT |
737 | if (trace_curl_data) { |
738 | text = "=> Send data"; | |
739 | curl_dump_data(text, (unsigned char *)data, size); | |
740 | } | |
74c682d3 EP |
741 | break; |
742 | case CURLINFO_SSL_DATA_OUT: | |
8ba18e6f JT |
743 | if (trace_curl_data) { |
744 | text = "=> Send SSL data"; | |
745 | curl_dump_data(text, (unsigned char *)data, size); | |
746 | } | |
74c682d3 EP |
747 | break; |
748 | case CURLINFO_HEADER_IN: | |
749 | text = "<= Recv header"; | |
750 | curl_dump_header(text, (unsigned char *)data, size, NO_FILTER); | |
751 | break; | |
752 | case CURLINFO_DATA_IN: | |
8ba18e6f JT |
753 | if (trace_curl_data) { |
754 | text = "<= Recv data"; | |
755 | curl_dump_data(text, (unsigned char *)data, size); | |
756 | } | |
74c682d3 EP |
757 | break; |
758 | case CURLINFO_SSL_DATA_IN: | |
8ba18e6f JT |
759 | if (trace_curl_data) { |
760 | text = "<= Recv SSL data"; | |
761 | curl_dump_data(text, (unsigned char *)data, size); | |
762 | } | |
74c682d3 | 763 | break; |
d0e99839 JK |
764 | |
765 | default: /* we ignore unknown types by default */ | |
766 | return 0; | |
74c682d3 EP |
767 | } |
768 | return 0; | |
769 | } | |
770 | ||
771 | void setup_curl_trace(CURL *handle) | |
772 | { | |
773 | if (!trace_want(&trace_curl)) | |
774 | return; | |
775 | curl_easy_setopt(handle, CURLOPT_VERBOSE, 1L); | |
776 | curl_easy_setopt(handle, CURLOPT_DEBUGFUNCTION, curl_trace); | |
777 | curl_easy_setopt(handle, CURLOPT_DEBUGDATA, NULL); | |
778 | } | |
779 | ||
f18777ba | 780 | #ifdef CURLPROTO_HTTP |
a768a022 | 781 | static long get_curl_allowed_protocols(int from_user) |
aeae4db1 BW |
782 | { |
783 | long allowed_protocols = 0; | |
784 | ||
a768a022 | 785 | if (is_transport_allowed("http", from_user)) |
aeae4db1 | 786 | allowed_protocols |= CURLPROTO_HTTP; |
a768a022 | 787 | if (is_transport_allowed("https", from_user)) |
aeae4db1 | 788 | allowed_protocols |= CURLPROTO_HTTPS; |
a768a022 | 789 | if (is_transport_allowed("ftp", from_user)) |
aeae4db1 | 790 | allowed_protocols |= CURLPROTO_FTP; |
a768a022 | 791 | if (is_transport_allowed("ftps", from_user)) |
aeae4db1 BW |
792 | allowed_protocols |= CURLPROTO_FTPS; |
793 | ||
794 | return allowed_protocols; | |
795 | } | |
f18777ba | 796 | #endif |
74c682d3 | 797 | |
d73019fe FC |
798 | #if LIBCURL_VERSION_NUM >=0x072f00 |
799 | static int get_curl_http_version_opt(const char *version_string, long *opt) | |
800 | { | |
801 | int i; | |
802 | static struct { | |
803 | const char *name; | |
804 | long opt_token; | |
805 | } choice[] = { | |
806 | { "HTTP/1.1", CURL_HTTP_VERSION_1_1 }, | |
807 | { "HTTP/2", CURL_HTTP_VERSION_2 } | |
808 | }; | |
809 | ||
810 | for (i = 0; i < ARRAY_SIZE(choice); i++) { | |
811 | if (!strcmp(version_string, choice[i].name)) { | |
812 | *opt = choice[i].opt_token; | |
813 | return 0; | |
814 | } | |
815 | } | |
816 | ||
817 | warning("unknown value given to http.version: '%s'", version_string); | |
818 | return -1; /* not found */ | |
819 | } | |
820 | ||
821 | #endif | |
822 | ||
4251ccbd | 823 | static CURL *get_curl_handle(void) |
11979b98 | 824 | { |
4251ccbd | 825 | CURL *result = curl_easy_init(); |
11979b98 | 826 | |
faa3807c BR |
827 | if (!result) |
828 | die("curl_easy_init failed"); | |
829 | ||
a5ccc597 JH |
830 | if (!curl_ssl_verify) { |
831 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
832 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
833 | } else { | |
834 | /* Verify authenticity of the peer's certificate */ | |
835 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
836 | /* The name in the cert must match whom we tried to connect */ | |
837 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
838 | } | |
839 | ||
d73019fe FC |
840 | #if LIBCURL_VERSION_NUM >= 0x072f00 // 7.47.0 |
841 | if (curl_http_version) { | |
842 | long opt; | |
843 | if (!get_curl_http_version_opt(curl_http_version, &opt)) { | |
844 | /* Set request use http version */ | |
845 | curl_easy_setopt(result, CURLOPT_HTTP_VERSION, opt); | |
846 | } | |
847 | } | |
848 | #endif | |
849 | ||
11979b98 JH |
850 | #if LIBCURL_VERSION_NUM >= 0x070907 |
851 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
852 | #endif | |
b8ac9230 | 853 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 854 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 855 | #endif |
11979b98 | 856 | |
dd5df538 | 857 | #ifdef CURLGSSAPI_DELEGATION_FLAG |
26a7b234 PS |
858 | if (curl_deleg) { |
859 | int i; | |
860 | for (i = 0; i < ARRAY_SIZE(curl_deleg_levels); i++) { | |
861 | if (!strcmp(curl_deleg, curl_deleg_levels[i].name)) { | |
862 | curl_easy_setopt(result, CURLOPT_GSSAPI_DELEGATION, | |
863 | curl_deleg_levels[i].curl_deleg_param); | |
864 | break; | |
865 | } | |
866 | } | |
867 | if (i == ARRAY_SIZE(curl_deleg_levels)) | |
868 | warning("Unknown delegation method '%s': using default", | |
869 | curl_deleg); | |
870 | } | |
871 | #endif | |
872 | ||
93aef7c7 BF |
873 | if (http_ssl_backend && !strcmp("schannel", http_ssl_backend) && |
874 | !http_schannel_check_revoke) { | |
875 | #if LIBCURL_VERSION_NUM >= 0x072c00 | |
876 | curl_easy_setopt(result, CURLOPT_SSL_OPTIONS, CURLSSLOPT_NO_REVOKE); | |
877 | #else | |
d355e46a | 878 | warning(_("CURLSSLOPT_NO_REVOKE not supported with cURL < 7.44.0")); |
93aef7c7 BF |
879 | #endif |
880 | } | |
881 | ||
a4ddbc33 JK |
882 | if (http_proactive_auth) |
883 | init_curl_http_auth(result); | |
884 | ||
01861cb7 EP |
885 | if (getenv("GIT_SSL_VERSION")) |
886 | ssl_version = getenv("GIT_SSL_VERSION"); | |
887 | if (ssl_version && *ssl_version) { | |
888 | int i; | |
889 | for (i = 0; i < ARRAY_SIZE(sslversions); i++) { | |
890 | if (!strcmp(ssl_version, sslversions[i].name)) { | |
891 | curl_easy_setopt(result, CURLOPT_SSLVERSION, | |
892 | sslversions[i].ssl_version); | |
893 | break; | |
894 | } | |
895 | } | |
896 | if (i == ARRAY_SIZE(sslversions)) | |
897 | warning("unsupported ssl version %s: using default", | |
898 | ssl_version); | |
899 | } | |
900 | ||
f6f2a9e4 LKS |
901 | if (getenv("GIT_SSL_CIPHER_LIST")) |
902 | ssl_cipherlist = getenv("GIT_SSL_CIPHER_LIST"); | |
f6f2a9e4 LKS |
903 | if (ssl_cipherlist != NULL && *ssl_cipherlist) |
904 | curl_easy_setopt(result, CURLOPT_SSL_CIPHER_LIST, | |
905 | ssl_cipherlist); | |
906 | ||
11979b98 JH |
907 | if (ssl_cert != NULL) |
908 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 | 909 | if (has_cert_password()) |
148bb6a7 | 910 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
ef52aafa | 911 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
912 | if (ssl_key != NULL) |
913 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
914 | #endif | |
915 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
916 | if (ssl_capath != NULL) | |
917 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
aeff8a61 CE |
918 | #endif |
919 | #if LIBCURL_VERSION_NUM >= 0x072c00 | |
920 | if (ssl_pinnedkey != NULL) | |
921 | curl_easy_setopt(result, CURLOPT_PINNEDPUBLICKEY, ssl_pinnedkey); | |
11979b98 | 922 | #endif |
b67d40ad JS |
923 | if (http_ssl_backend && !strcmp("schannel", http_ssl_backend) && |
924 | !http_schannel_use_ssl_cainfo) { | |
925 | curl_easy_setopt(result, CURLOPT_CAINFO, NULL); | |
926 | #if LIBCURL_VERSION_NUM >= 0x073400 | |
927 | curl_easy_setopt(result, CURLOPT_PROXY_CAINFO, NULL); | |
928 | #endif | |
929 | } else if (ssl_cainfo != NULL) | |
11979b98 | 930 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); |
11979b98 JH |
931 | |
932 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
933 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
934 | curl_low_speed_limit); | |
935 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
936 | curl_low_speed_time); | |
937 | } | |
938 | ||
b2581164 | 939 | curl_easy_setopt(result, CURLOPT_MAXREDIRS, 20); |
311e2ea0 TRC |
940 | #if LIBCURL_VERSION_NUM >= 0x071301 |
941 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
942 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
943 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
944 | #endif | |
f18777ba | 945 | #ifdef CURLPROTO_HTTP |
aeae4db1 | 946 | curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS, |
a768a022 | 947 | get_curl_allowed_protocols(0)); |
aeae4db1 | 948 | curl_easy_setopt(result, CURLOPT_PROTOCOLS, |
a768a022 | 949 | get_curl_allowed_protocols(-1)); |
f4113cac | 950 | #else |
d6b1d3b2 | 951 | warning(_("Protocol restrictions not supported with cURL < 7.19.4")); |
f4113cac | 952 | #endif |
7982d74e | 953 | if (getenv("GIT_CURL_VERBOSE")) |
74c682d3 EP |
954 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1L); |
955 | setup_curl_trace(result); | |
8ba18e6f JT |
956 | if (getenv("GIT_TRACE_CURL_NO_DATA")) |
957 | trace_curl_data = 0; | |
83411783 JT |
958 | if (getenv("GIT_REDACT_COOKIES")) { |
959 | string_list_split(&cookies_to_redact, | |
960 | getenv("GIT_REDACT_COOKIES"), ',', -1); | |
961 | string_list_sort(&cookies_to_redact); | |
962 | } | |
7982d74e | 963 | |
b1d1058c | 964 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
745c7c8e | 965 | user_agent ? user_agent : git_user_agent()); |
20fc9bc5 | 966 | |
3ea099d4 SK |
967 | if (curl_ftp_no_epsv) |
968 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
969 | ||
4bc444eb MV |
970 | #ifdef CURLOPT_USE_SSL |
971 | if (curl_ssl_try) | |
972 | curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY); | |
973 | #endif | |
974 | ||
372370f1 KF |
975 | /* |
976 | * CURL also examines these variables as a fallback; but we need to query | |
977 | * them here in order to decide whether to prompt for missing password (cf. | |
978 | * init_curl_proxy_auth()). | |
979 | * | |
980 | * Unlike many other common environment variables, these are historically | |
981 | * lowercase only. It appears that CURL did not know this and implemented | |
982 | * only uppercase variants, which was later corrected to take both - with | |
983 | * the exception of http_proxy, which is lowercase only also in CURL. As | |
984 | * the lowercase versions are the historical quasi-standard, they take | |
985 | * precedence here, as in CURL. | |
986 | */ | |
987 | if (!curl_http_proxy) { | |
d63ed6ef | 988 | if (http_auth.protocol && !strcmp(http_auth.protocol, "https")) { |
372370f1 KF |
989 | var_override(&curl_http_proxy, getenv("HTTPS_PROXY")); |
990 | var_override(&curl_http_proxy, getenv("https_proxy")); | |
991 | } else { | |
992 | var_override(&curl_http_proxy, getenv("http_proxy")); | |
993 | } | |
994 | if (!curl_http_proxy) { | |
995 | var_override(&curl_http_proxy, getenv("ALL_PROXY")); | |
996 | var_override(&curl_http_proxy, getenv("all_proxy")); | |
997 | } | |
998 | } | |
999 | ||
57415089 SR |
1000 | if (curl_http_proxy && curl_http_proxy[0] == '\0') { |
1001 | /* | |
1002 | * Handle case with the empty http.proxy value here to keep | |
1003 | * common code clean. | |
1004 | * NB: empty option disables proxying at all. | |
1005 | */ | |
1006 | curl_easy_setopt(result, CURLOPT_PROXY, ""); | |
1007 | } else if (curl_http_proxy) { | |
6d7afe07 | 1008 | #if LIBCURL_VERSION_NUM >= 0x071800 |
87f8a0b2 JH |
1009 | if (starts_with(curl_http_proxy, "socks5h")) |
1010 | curl_easy_setopt(result, | |
1011 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5_HOSTNAME); | |
1012 | else if (starts_with(curl_http_proxy, "socks5")) | |
6d7afe07 PT |
1013 | curl_easy_setopt(result, |
1014 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5); | |
1015 | else if (starts_with(curl_http_proxy, "socks4a")) | |
1016 | curl_easy_setopt(result, | |
1017 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4A); | |
1018 | else if (starts_with(curl_http_proxy, "socks")) | |
1019 | curl_easy_setopt(result, | |
1020 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4); | |
82b6803a WS |
1021 | #endif |
1022 | #if LIBCURL_VERSION_NUM >= 0x073400 | |
1023 | else if (starts_with(curl_http_proxy, "https")) | |
1024 | curl_easy_setopt(result, | |
1025 | CURLOPT_PROXYTYPE, CURLPROXY_HTTPS); | |
6d7afe07 | 1026 | #endif |
372370f1 KF |
1027 | if (strstr(curl_http_proxy, "://")) |
1028 | credential_from_url(&proxy_auth, curl_http_proxy); | |
1029 | else { | |
1030 | struct strbuf url = STRBUF_INIT; | |
1031 | strbuf_addf(&url, "http://%s", curl_http_proxy); | |
1032 | credential_from_url(&proxy_auth, url.buf); | |
1033 | strbuf_release(&url); | |
1034 | } | |
1035 | ||
ae51d911 SR |
1036 | if (!proxy_auth.host) |
1037 | die("Invalid proxy URL '%s'", curl_http_proxy); | |
1038 | ||
372370f1 | 1039 | curl_easy_setopt(result, CURLOPT_PROXY, proxy_auth.host); |
d445fda4 JX |
1040 | #if LIBCURL_VERSION_NUM >= 0x071304 |
1041 | var_override(&curl_no_proxy, getenv("NO_PROXY")); | |
1042 | var_override(&curl_no_proxy, getenv("no_proxy")); | |
1043 | curl_easy_setopt(result, CURLOPT_NOPROXY, curl_no_proxy); | |
1044 | #endif | |
5841520b | 1045 | } |
ef976395 | 1046 | init_curl_proxy_auth(result); |
9c5665aa | 1047 | |
47ce1153 | 1048 | set_curl_keepalive(result); |
a15d069a | 1049 | |
11979b98 JH |
1050 | return result; |
1051 | } | |
1052 | ||
7059cd99 JH |
1053 | static void set_from_env(const char **var, const char *envname) |
1054 | { | |
1055 | const char *val = getenv(envname); | |
1056 | if (val) | |
1057 | *var = val; | |
1058 | } | |
1059 | ||
a4ddbc33 | 1060 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
1061 | { |
1062 | char *low_speed_limit; | |
1063 | char *low_speed_time; | |
6a56993b KM |
1064 | char *normalized_url; |
1065 | struct urlmatch_config config = { STRING_LIST_INIT_DUP }; | |
1066 | ||
1067 | config.section = "http"; | |
1068 | config.key = NULL; | |
1069 | config.collect_fn = http_options; | |
1070 | config.cascade_fn = git_default_config; | |
1071 | config.cb = NULL; | |
29508e1e | 1072 | |
e9176745 | 1073 | http_is_verbose = 0; |
6a56993b | 1074 | normalized_url = url_normalize(url, &config.url); |
e9176745 | 1075 | |
6a56993b KM |
1076 | git_config(urlmatch_config_entry, &config); |
1077 | free(normalized_url); | |
7e927567 | 1078 | string_list_clear(&config.vars, 1); |
7059cd99 | 1079 | |
21084e84 JS |
1080 | #if LIBCURL_VERSION_NUM >= 0x073800 |
1081 | if (http_ssl_backend) { | |
1082 | const curl_ssl_backend **backends; | |
1083 | struct strbuf buf = STRBUF_INIT; | |
1084 | int i; | |
1085 | ||
1086 | switch (curl_global_sslset(-1, http_ssl_backend, &backends)) { | |
1087 | case CURLSSLSET_UNKNOWN_BACKEND: | |
1088 | strbuf_addf(&buf, _("Unsupported SSL backend '%s'. " | |
1089 | "Supported SSL backends:"), | |
1090 | http_ssl_backend); | |
1091 | for (i = 0; backends[i]; i++) | |
1092 | strbuf_addf(&buf, "\n\t%s", backends[i]->name); | |
1093 | die("%s", buf.buf); | |
1094 | case CURLSSLSET_NO_BACKENDS: | |
1095 | die(_("Could not set SSL backend to '%s': " | |
1096 | "cURL was built without SSL backends"), | |
1097 | http_ssl_backend); | |
1098 | case CURLSSLSET_TOO_LATE: | |
1099 | die(_("Could not set SSL backend to '%s': already set"), | |
1100 | http_ssl_backend); | |
1101 | case CURLSSLSET_OK: | |
1102 | break; /* Okay! */ | |
1103 | } | |
1104 | } | |
1105 | #endif | |
1106 | ||
faa3807c BR |
1107 | if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) |
1108 | die("curl_global_init failed"); | |
29508e1e | 1109 | |
a4ddbc33 JK |
1110 | http_proactive_auth = proactive_auth; |
1111 | ||
9fc6440d MH |
1112 | if (remote && remote->http_proxy) |
1113 | curl_http_proxy = xstrdup(remote->http_proxy); | |
1114 | ||
ef976395 KF |
1115 | if (remote) |
1116 | var_override(&http_proxy_authmethod, remote->http_proxy_authmethod); | |
1117 | ||
8cb01e2f JS |
1118 | pragma_header = curl_slist_append(http_copy_default_headers(), |
1119 | "Pragma: no-cache"); | |
1120 | no_pragma_header = curl_slist_append(http_copy_default_headers(), | |
1121 | "Pragma:"); | |
29508e1e NH |
1122 | |
1123 | #ifdef USE_CURL_MULTI | |
1124 | { | |
1125 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
1126 | if (http_max_requests != NULL) | |
1127 | max_requests = atoi(http_max_requests); | |
1128 | } | |
1129 | ||
1130 | curlm = curl_multi_init(); | |
8837eb47 JK |
1131 | if (!curlm) |
1132 | die("curl_multi_init failed"); | |
29508e1e NH |
1133 | #endif |
1134 | ||
1135 | if (getenv("GIT_SSL_NO_VERIFY")) | |
1136 | curl_ssl_verify = 0; | |
1137 | ||
7059cd99 | 1138 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 1139 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 1140 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
1141 | #endif |
1142 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 1143 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 1144 | #endif |
7059cd99 | 1145 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 1146 | |
b1d1058c SO |
1147 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
1148 | ||
29508e1e NH |
1149 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
1150 | if (low_speed_limit != NULL) | |
1151 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
1152 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
1153 | if (low_speed_time != NULL) | |
1154 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
1155 | ||
29508e1e NH |
1156 | if (curl_ssl_verify == -1) |
1157 | curl_ssl_verify = 1; | |
1158 | ||
ad75ebe5 | 1159 | curl_session_count = 0; |
29508e1e NH |
1160 | #ifdef USE_CURL_MULTI |
1161 | if (max_requests < 1) | |
1162 | max_requests = DEFAULT_MAX_REQUESTS; | |
1163 | #endif | |
1164 | ||
3ea099d4 SK |
1165 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
1166 | curl_ftp_no_epsv = 1; | |
1167 | ||
deba4937 | 1168 | if (url) { |
148bb6a7 | 1169 | credential_from_url(&http_auth, url); |
754ae192 ML |
1170 | if (!ssl_cert_password_required && |
1171 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
59556548 | 1172 | starts_with(url, "https://")) |
30dd9163 ML |
1173 | ssl_cert_password_required = 1; |
1174 | } | |
c33976cb | 1175 | |
29508e1e NH |
1176 | #ifndef NO_CURL_EASY_DUPHANDLE |
1177 | curl_default = get_curl_handle(); | |
1178 | #endif | |
1179 | } | |
1180 | ||
1181 | void http_cleanup(void) | |
1182 | { | |
1183 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
1184 | |
1185 | while (slot != NULL) { | |
3278cd0a | 1186 | struct active_request_slot *next = slot->next; |
f23d1f76 | 1187 | if (slot->curl != NULL) { |
d8b6b84d | 1188 | xmulti_remove_handle(slot); |
29508e1e | 1189 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 1190 | } |
3278cd0a SP |
1191 | free(slot); |
1192 | slot = next; | |
29508e1e | 1193 | } |
3278cd0a | 1194 | active_queue_head = NULL; |
29508e1e NH |
1195 | |
1196 | #ifndef NO_CURL_EASY_DUPHANDLE | |
1197 | curl_easy_cleanup(curl_default); | |
1198 | #endif | |
1199 | ||
1200 | #ifdef USE_CURL_MULTI | |
1201 | curl_multi_cleanup(curlm); | |
1202 | #endif | |
1203 | curl_global_cleanup(); | |
b3ca4e4e | 1204 | |
8cb01e2f JS |
1205 | curl_slist_free_all(extra_http_headers); |
1206 | extra_http_headers = NULL; | |
1207 | ||
b3ca4e4e | 1208 | curl_slist_free_all(pragma_header); |
3278cd0a | 1209 | pragma_header = NULL; |
9fc6440d | 1210 | |
e9176745 TRC |
1211 | curl_slist_free_all(no_pragma_header); |
1212 | no_pragma_header = NULL; | |
1213 | ||
9fc6440d | 1214 | if (curl_http_proxy) { |
e4a80ecf | 1215 | free((void *)curl_http_proxy); |
9fc6440d MH |
1216 | curl_http_proxy = NULL; |
1217 | } | |
30dd9163 | 1218 | |
372370f1 KF |
1219 | if (proxy_auth.password) { |
1220 | memset(proxy_auth.password, 0, strlen(proxy_auth.password)); | |
6a83d902 | 1221 | FREE_AND_NULL(proxy_auth.password); |
372370f1 KF |
1222 | } |
1223 | ||
1224 | free((void *)curl_proxyuserpwd); | |
1225 | curl_proxyuserpwd = NULL; | |
1226 | ||
ef976395 KF |
1227 | free((void *)http_proxy_authmethod); |
1228 | http_proxy_authmethod = NULL; | |
1229 | ||
148bb6a7 JK |
1230 | if (cert_auth.password != NULL) { |
1231 | memset(cert_auth.password, 0, strlen(cert_auth.password)); | |
6a83d902 | 1232 | FREE_AND_NULL(cert_auth.password); |
30dd9163 ML |
1233 | } |
1234 | ssl_cert_password_required = 0; | |
f18604bb | 1235 | |
6a83d902 | 1236 | FREE_AND_NULL(cached_accept_language); |
29508e1e NH |
1237 | } |
1238 | ||
29508e1e NH |
1239 | struct active_request_slot *get_active_slot(void) |
1240 | { | |
1241 | struct active_request_slot *slot = active_queue_head; | |
1242 | struct active_request_slot *newslot; | |
1243 | ||
1244 | #ifdef USE_CURL_MULTI | |
1245 | int num_transfers; | |
1246 | ||
1247 | /* Wait for a slot to open up if the queue is full */ | |
1248 | while (active_requests >= max_requests) { | |
1249 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 1250 | if (num_transfers < active_requests) |
29508e1e | 1251 | process_curl_messages(); |
29508e1e NH |
1252 | } |
1253 | #endif | |
1254 | ||
4251ccbd | 1255 | while (slot != NULL && slot->in_use) |
29508e1e | 1256 | slot = slot->next; |
4251ccbd | 1257 | |
29508e1e NH |
1258 | if (slot == NULL) { |
1259 | newslot = xmalloc(sizeof(*newslot)); | |
1260 | newslot->curl = NULL; | |
1261 | newslot->in_use = 0; | |
1262 | newslot->next = NULL; | |
1263 | ||
1264 | slot = active_queue_head; | |
1265 | if (slot == NULL) { | |
1266 | active_queue_head = newslot; | |
1267 | } else { | |
4251ccbd | 1268 | while (slot->next != NULL) |
29508e1e | 1269 | slot = slot->next; |
29508e1e NH |
1270 | slot->next = newslot; |
1271 | } | |
1272 | slot = newslot; | |
1273 | } | |
1274 | ||
1275 | if (slot->curl == NULL) { | |
1276 | #ifdef NO_CURL_EASY_DUPHANDLE | |
1277 | slot->curl = get_curl_handle(); | |
1278 | #else | |
1279 | slot->curl = curl_easy_duphandle(curl_default); | |
1280 | #endif | |
ad75ebe5 | 1281 | curl_session_count++; |
29508e1e NH |
1282 | } |
1283 | ||
1284 | active_requests++; | |
1285 | slot->in_use = 1; | |
c8568e13 | 1286 | slot->results = NULL; |
baa7b67d | 1287 | slot->finished = NULL; |
29508e1e NH |
1288 | slot->callback_data = NULL; |
1289 | slot->callback_func = NULL; | |
bcfb95dd | 1290 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
912b2acf DB |
1291 | if (curl_save_cookies) |
1292 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file); | |
29508e1e | 1293 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 1294 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
1295 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
1296 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
1297 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 1298 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
1299 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
1300 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
b793acf1 | 1301 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1); |
835c4d36 | 1302 | curl_easy_setopt(slot->curl, CURLOPT_RANGE, NULL); |
c915f11e | 1303 | |
50d34137 JK |
1304 | /* |
1305 | * Default following to off unless "ALWAYS" is configured; this gives | |
1306 | * callers a sane starting point, and they can tweak for individual | |
1307 | * HTTP_FOLLOW_* cases themselves. | |
1308 | */ | |
1309 | if (http_follow_config == HTTP_FOLLOW_ALWAYS) | |
1310 | curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 1); | |
1311 | else | |
1312 | curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 0); | |
1313 | ||
c915f11e EW |
1314 | #if LIBCURL_VERSION_NUM >= 0x070a08 |
1315 | curl_easy_setopt(slot->curl, CURLOPT_IPRESOLVE, git_curl_ipresolve); | |
1316 | #endif | |
4dbe6646 | 1317 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
1318 | curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods); | |
1319 | #endif | |
40a18fc7 | 1320 | if (http_auth.password || curl_empty_auth_enabled()) |
dfa1725a | 1321 | init_curl_http_auth(slot->curl); |
29508e1e NH |
1322 | |
1323 | return slot; | |
1324 | } | |
1325 | ||
1326 | int start_active_slot(struct active_request_slot *slot) | |
1327 | { | |
1328 | #ifdef USE_CURL_MULTI | |
1329 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 1330 | int num_transfers; |
29508e1e NH |
1331 | |
1332 | if (curlm_result != CURLM_OK && | |
1333 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
9f1b5884 EW |
1334 | warning("curl_multi_add_handle failed: %s", |
1335 | curl_multi_strerror(curlm_result)); | |
29508e1e NH |
1336 | active_requests--; |
1337 | slot->in_use = 0; | |
1338 | return 0; | |
1339 | } | |
45c17412 DB |
1340 | |
1341 | /* | |
1342 | * We know there must be something to do, since we just added | |
1343 | * something. | |
1344 | */ | |
1345 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
1346 | #endif |
1347 | return 1; | |
1348 | } | |
1349 | ||
1350 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
1351 | struct fill_chain { |
1352 | void *data; | |
1353 | int (*fill)(void *); | |
1354 | struct fill_chain *next; | |
1355 | }; | |
1356 | ||
4251ccbd | 1357 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
1358 | |
1359 | void add_fill_function(void *data, int (*fill)(void *)) | |
1360 | { | |
ee6e0653 | 1361 | struct fill_chain *new_fill = xmalloc(sizeof(*new_fill)); |
fc57b6aa | 1362 | struct fill_chain **linkp = &fill_cfg; |
ee6e0653 BW |
1363 | new_fill->data = data; |
1364 | new_fill->fill = fill; | |
1365 | new_fill->next = NULL; | |
fc57b6aa DB |
1366 | while (*linkp) |
1367 | linkp = &(*linkp)->next; | |
ee6e0653 | 1368 | *linkp = new_fill; |
fc57b6aa DB |
1369 | } |
1370 | ||
45c17412 DB |
1371 | void fill_active_slots(void) |
1372 | { | |
1373 | struct active_request_slot *slot = active_queue_head; | |
1374 | ||
fc57b6aa DB |
1375 | while (active_requests < max_requests) { |
1376 | struct fill_chain *fill; | |
1377 | for (fill = fill_cfg; fill; fill = fill->next) | |
1378 | if (fill->fill(fill->data)) | |
1379 | break; | |
1380 | ||
1381 | if (!fill) | |
45c17412 | 1382 | break; |
fc57b6aa | 1383 | } |
45c17412 DB |
1384 | |
1385 | while (slot != NULL) { | |
ad75ebe5 TRC |
1386 | if (!slot->in_use && slot->curl != NULL |
1387 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
1388 | curl_easy_cleanup(slot->curl); |
1389 | slot->curl = NULL; | |
ad75ebe5 | 1390 | curl_session_count--; |
45c17412 DB |
1391 | } |
1392 | slot = slot->next; | |
1393 | } | |
1394 | } | |
1395 | ||
29508e1e NH |
1396 | void step_active_slots(void) |
1397 | { | |
1398 | int num_transfers; | |
1399 | CURLMcode curlm_result; | |
1400 | ||
1401 | do { | |
1402 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
1403 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
1404 | if (num_transfers < active_requests) { | |
1405 | process_curl_messages(); | |
1406 | fill_active_slots(); | |
1407 | } | |
1408 | } | |
1409 | #endif | |
1410 | ||
1411 | void run_active_slot(struct active_request_slot *slot) | |
1412 | { | |
1413 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
1414 | fd_set readfds; |
1415 | fd_set writefds; | |
1416 | fd_set excfds; | |
1417 | int max_fd; | |
1418 | struct timeval select_timeout; | |
baa7b67d | 1419 | int finished = 0; |
29508e1e | 1420 | |
baa7b67d NH |
1421 | slot->finished = &finished; |
1422 | while (!finished) { | |
29508e1e NH |
1423 | step_active_slots(); |
1424 | ||
df26c471 | 1425 | if (slot->in_use) { |
eb56c821 MF |
1426 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
1427 | long curl_timeout; | |
1428 | curl_multi_timeout(curlm, &curl_timeout); | |
1429 | if (curl_timeout == 0) { | |
1430 | continue; | |
1431 | } else if (curl_timeout == -1) { | |
1432 | select_timeout.tv_sec = 0; | |
1433 | select_timeout.tv_usec = 50000; | |
1434 | } else { | |
1435 | select_timeout.tv_sec = curl_timeout / 1000; | |
1436 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
1437 | } | |
1438 | #else | |
1439 | select_timeout.tv_sec = 0; | |
1440 | select_timeout.tv_usec = 50000; | |
1441 | #endif | |
29508e1e | 1442 | |
6f9dd67f | 1443 | max_fd = -1; |
29508e1e NH |
1444 | FD_ZERO(&readfds); |
1445 | FD_ZERO(&writefds); | |
1446 | FD_ZERO(&excfds); | |
6f9dd67f | 1447 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 1448 | |
7202b81f SZ |
1449 | /* |
1450 | * It can happen that curl_multi_timeout returns a pathologically | |
1451 | * long timeout when curl_multi_fdset returns no file descriptors | |
1452 | * to read. See commit message for more details. | |
1453 | */ | |
1454 | if (max_fd < 0 && | |
1455 | (select_timeout.tv_sec > 0 || | |
1456 | select_timeout.tv_usec > 50000)) { | |
1457 | select_timeout.tv_sec = 0; | |
1458 | select_timeout.tv_usec = 50000; | |
1459 | } | |
1460 | ||
6f9dd67f | 1461 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
1462 | } |
1463 | } | |
1464 | #else | |
1465 | while (slot->in_use) { | |
1466 | slot->curl_result = curl_easy_perform(slot->curl); | |
1467 | finish_active_slot(slot); | |
1468 | } | |
1469 | #endif | |
1470 | } | |
1471 | ||
83e41e2e | 1472 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
1473 | { |
1474 | closedown_active_slot(slot); | |
2abc848d | 1475 | if (slot->curl) { |
d8b6b84d | 1476 | xmulti_remove_handle(slot); |
2abc848d EW |
1477 | if (curl_session_count > min_curl_sessions) { |
1478 | curl_easy_cleanup(slot->curl); | |
1479 | slot->curl = NULL; | |
1480 | curl_session_count--; | |
1481 | } | |
53f31389 | 1482 | } |
b3ca4e4e | 1483 | #ifdef USE_CURL_MULTI |
53f31389 | 1484 | fill_active_slots(); |
b3ca4e4e | 1485 | #endif |
53f31389 MW |
1486 | } |
1487 | ||
29508e1e NH |
1488 | void finish_all_active_slots(void) |
1489 | { | |
1490 | struct active_request_slot *slot = active_queue_head; | |
1491 | ||
1492 | while (slot != NULL) | |
1493 | if (slot->in_use) { | |
1494 | run_active_slot(slot); | |
1495 | slot = active_queue_head; | |
1496 | } else { | |
1497 | slot = slot->next; | |
1498 | } | |
1499 | } | |
d7e92806 | 1500 | |
5ace994f | 1501 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
1502 | static inline int needs_quote(int ch) |
1503 | { | |
1504 | if (((ch >= 'A') && (ch <= 'Z')) | |
1505 | || ((ch >= 'a') && (ch <= 'z')) | |
1506 | || ((ch >= '0') && (ch <= '9')) | |
1507 | || (ch == '/') | |
1508 | || (ch == '-') | |
1509 | || (ch == '.')) | |
1510 | return 0; | |
1511 | return 1; | |
1512 | } | |
1513 | ||
d7e92806 MH |
1514 | static char *quote_ref_url(const char *base, const char *ref) |
1515 | { | |
113106e0 | 1516 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 1517 | const char *cp; |
113106e0 | 1518 | int ch; |
d7e92806 | 1519 | |
5ace994f | 1520 | end_url_with_slash(&buf, base); |
113106e0 TRC |
1521 | |
1522 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 1523 | if (needs_quote(ch)) |
113106e0 | 1524 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 1525 | else |
113106e0 | 1526 | strbuf_addch(&buf, *cp); |
d7e92806 | 1527 | |
113106e0 | 1528 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
1529 | } |
1530 | ||
5424bc55 TRC |
1531 | void append_remote_object_url(struct strbuf *buf, const char *url, |
1532 | const char *hex, | |
1533 | int only_two_digit_prefix) | |
1534 | { | |
800324c3 TRC |
1535 | end_url_with_slash(buf, url); |
1536 | ||
1537 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 | 1538 | if (!only_two_digit_prefix) |
bc57b9c0 | 1539 | strbuf_addstr(buf, hex + 2); |
5424bc55 TRC |
1540 | } |
1541 | ||
1542 | char *get_remote_object_url(const char *url, const char *hex, | |
1543 | int only_two_digit_prefix) | |
1544 | { | |
1545 | struct strbuf buf = STRBUF_INIT; | |
1546 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
1547 | return strbuf_detach(&buf, NULL); | |
1548 | } | |
1549 | ||
a3722bcb JK |
1550 | void normalize_curl_result(CURLcode *result, long http_code, |
1551 | char *errorstr, size_t errorlen) | |
88097030 | 1552 | { |
6d052d78 JK |
1553 | /* |
1554 | * If we see a failing http code with CURLE_OK, we have turned off | |
1555 | * FAILONERROR (to keep the server's custom error response), and should | |
1556 | * translate the code into failure here. | |
50d34137 JK |
1557 | * |
1558 | * Likewise, if we see a redirect (30x code), that means we turned off | |
1559 | * redirect-following, and we should treat the result as an error. | |
6d052d78 | 1560 | */ |
a3722bcb JK |
1561 | if (*result == CURLE_OK && http_code >= 300) { |
1562 | *result = CURLE_HTTP_RETURNED_ERROR; | |
6d052d78 JK |
1563 | /* |
1564 | * Normally curl will already have put the "reason phrase" | |
1565 | * from the server into curl_errorstr; unfortunately without | |
1566 | * FAILONERROR it is lost, so we can give only the numeric | |
1567 | * status code. | |
1568 | */ | |
a3722bcb | 1569 | xsnprintf(errorstr, errorlen, |
1a168e5c | 1570 | "The requested URL returned error: %ld", |
a3722bcb | 1571 | http_code); |
6d052d78 | 1572 | } |
a3722bcb JK |
1573 | } |
1574 | ||
1575 | static int handle_curl_result(struct slot_results *results) | |
1576 | { | |
1577 | normalize_curl_result(&results->curl_result, results->http_code, | |
1578 | curl_errorstr, sizeof(curl_errorstr)); | |
6d052d78 | 1579 | |
88097030 JK |
1580 | if (results->curl_result == CURLE_OK) { |
1581 | credential_approve(&http_auth); | |
372370f1 KF |
1582 | if (proxy_auth.password) |
1583 | credential_approve(&proxy_auth); | |
88097030 JK |
1584 | return HTTP_OK; |
1585 | } else if (missing_target(results)) | |
1586 | return HTTP_MISSING_TARGET; | |
1587 | else if (results->http_code == 401) { | |
1588 | if (http_auth.username && http_auth.password) { | |
1589 | credential_reject(&http_auth); | |
1590 | return HTTP_NOAUTH; | |
1591 | } else { | |
4dbe6646 | 1592 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
1593 | http_auth_methods &= ~CURLAUTH_GSSNEGOTIATE; | |
40a18fc7 | 1594 | if (results->auth_avail) { |
840398fe | 1595 | http_auth_methods &= results->auth_avail; |
40a18fc7 JK |
1596 | http_auth_methods_restricted = 1; |
1597 | } | |
4dbe6646 | 1598 | #endif |
88097030 JK |
1599 | return HTTP_REAUTH; |
1600 | } | |
1601 | } else { | |
372370f1 KF |
1602 | if (results->http_connectcode == 407) |
1603 | credential_reject(&proxy_auth); | |
3503e9ab | 1604 | #if LIBCURL_VERSION_NUM >= 0x070c00 |
88097030 JK |
1605 | if (!curl_errorstr[0]) |
1606 | strlcpy(curl_errorstr, | |
1607 | curl_easy_strerror(results->curl_result), | |
1608 | sizeof(curl_errorstr)); | |
3503e9ab | 1609 | #endif |
88097030 JK |
1610 | return HTTP_ERROR; |
1611 | } | |
1612 | } | |
1613 | ||
beed336c JK |
1614 | int run_one_slot(struct active_request_slot *slot, |
1615 | struct slot_results *results) | |
1616 | { | |
1617 | slot->results = results; | |
1618 | if (!start_active_slot(slot)) { | |
1a168e5c JK |
1619 | xsnprintf(curl_errorstr, sizeof(curl_errorstr), |
1620 | "failed to start HTTP request"); | |
beed336c JK |
1621 | return HTTP_START_FAILED; |
1622 | } | |
1623 | ||
1624 | run_active_slot(slot); | |
1625 | return handle_curl_result(results); | |
1626 | } | |
1627 | ||
8cb01e2f JS |
1628 | struct curl_slist *http_copy_default_headers(void) |
1629 | { | |
1630 | struct curl_slist *headers = NULL, *h; | |
1631 | ||
1632 | for (h = extra_http_headers; h; h = h->next) | |
1633 | headers = curl_slist_append(headers, h->data); | |
1634 | ||
1635 | return headers; | |
1636 | } | |
1637 | ||
132b70a2 JK |
1638 | static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf) |
1639 | { | |
1640 | char *ptr; | |
1641 | CURLcode ret; | |
1642 | ||
1643 | strbuf_reset(buf); | |
1644 | ret = curl_easy_getinfo(curl, info, &ptr); | |
1645 | if (!ret && ptr) | |
1646 | strbuf_addstr(buf, ptr); | |
1647 | return ret; | |
1648 | } | |
1649 | ||
e3131626 JK |
1650 | /* |
1651 | * Check for and extract a content-type parameter. "raw" | |
1652 | * should be positioned at the start of the potential | |
1653 | * parameter, with any whitespace already removed. | |
1654 | * | |
1655 | * "name" is the name of the parameter. The value is appended | |
1656 | * to "out". | |
1657 | */ | |
1658 | static int extract_param(const char *raw, const char *name, | |
1659 | struct strbuf *out) | |
1660 | { | |
1661 | size_t len = strlen(name); | |
1662 | ||
1663 | if (strncasecmp(raw, name, len)) | |
1664 | return -1; | |
1665 | raw += len; | |
1666 | ||
1667 | if (*raw != '=') | |
1668 | return -1; | |
1669 | raw++; | |
1670 | ||
f34a655d | 1671 | while (*raw && !isspace(*raw) && *raw != ';') |
e3131626 JK |
1672 | strbuf_addch(out, *raw++); |
1673 | return 0; | |
1674 | } | |
1675 | ||
bf197fd7 JK |
1676 | /* |
1677 | * Extract a normalized version of the content type, with any | |
1678 | * spaces suppressed, all letters lowercased, and no trailing ";" | |
1679 | * or parameters. | |
1680 | * | |
1681 | * Note that we will silently remove even invalid whitespace. For | |
1682 | * example, "text / plain" is specifically forbidden by RFC 2616, | |
1683 | * but "text/plain" is the only reasonable output, and this keeps | |
1684 | * our code simple. | |
1685 | * | |
e3131626 JK |
1686 | * If the "charset" argument is not NULL, store the value of any |
1687 | * charset parameter there. | |
1688 | * | |
bf197fd7 | 1689 | * Example: |
e3131626 | 1690 | * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8" |
bf197fd7 JK |
1691 | * "text / plain" -> "text/plain" |
1692 | */ | |
e3131626 JK |
1693 | static void extract_content_type(struct strbuf *raw, struct strbuf *type, |
1694 | struct strbuf *charset) | |
bf197fd7 JK |
1695 | { |
1696 | const char *p; | |
1697 | ||
1698 | strbuf_reset(type); | |
1699 | strbuf_grow(type, raw->len); | |
1700 | for (p = raw->buf; *p; p++) { | |
1701 | if (isspace(*p)) | |
1702 | continue; | |
e3131626 JK |
1703 | if (*p == ';') { |
1704 | p++; | |
bf197fd7 | 1705 | break; |
e3131626 | 1706 | } |
bf197fd7 JK |
1707 | strbuf_addch(type, tolower(*p)); |
1708 | } | |
e3131626 JK |
1709 | |
1710 | if (!charset) | |
1711 | return; | |
1712 | ||
1713 | strbuf_reset(charset); | |
1714 | while (*p) { | |
f34a655d | 1715 | while (isspace(*p) || *p == ';') |
e3131626 JK |
1716 | p++; |
1717 | if (!extract_param(p, "charset", charset)) | |
1718 | return; | |
1719 | while (*p && !isspace(*p)) | |
1720 | p++; | |
1721 | } | |
c553fd1c JK |
1722 | |
1723 | if (!charset->len && starts_with(type->buf, "text/")) | |
1724 | strbuf_addstr(charset, "ISO-8859-1"); | |
bf197fd7 JK |
1725 | } |
1726 | ||
f18604bb YE |
1727 | static void write_accept_language(struct strbuf *buf) |
1728 | { | |
1729 | /* | |
1730 | * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than | |
1731 | * that, q-value will be smaller than 0.001, the minimum q-value the | |
1732 | * HTTP specification allows. See | |
1733 | * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value. | |
1734 | */ | |
1735 | const int MAX_DECIMAL_PLACES = 3; | |
1736 | const int MAX_LANGUAGE_TAGS = 1000; | |
1737 | const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE = 4000; | |
1738 | char **language_tags = NULL; | |
1739 | int num_langs = 0; | |
1740 | const char *s = get_preferred_languages(); | |
1741 | int i; | |
1742 | struct strbuf tag = STRBUF_INIT; | |
1743 | ||
1744 | /* Don't add Accept-Language header if no language is preferred. */ | |
1745 | if (!s) | |
1746 | return; | |
1747 | ||
1748 | /* | |
1749 | * Split the colon-separated string of preferred languages into | |
1750 | * language_tags array. | |
1751 | */ | |
1752 | do { | |
1753 | /* collect language tag */ | |
1754 | for (; *s && (isalnum(*s) || *s == '_'); s++) | |
1755 | strbuf_addch(&tag, *s == '_' ? '-' : *s); | |
1756 | ||
1757 | /* skip .codeset, @modifier and any other unnecessary parts */ | |
1758 | while (*s && *s != ':') | |
1759 | s++; | |
1760 | ||
1761 | if (tag.len) { | |
1762 | num_langs++; | |
1763 | REALLOC_ARRAY(language_tags, num_langs); | |
1764 | language_tags[num_langs - 1] = strbuf_detach(&tag, NULL); | |
1765 | if (num_langs >= MAX_LANGUAGE_TAGS - 1) /* -1 for '*' */ | |
1766 | break; | |
1767 | } | |
1768 | } while (*s++); | |
1769 | ||
1770 | /* write Accept-Language header into buf */ | |
1771 | if (num_langs) { | |
1772 | int last_buf_len = 0; | |
1773 | int max_q; | |
1774 | int decimal_places; | |
1775 | char q_format[32]; | |
1776 | ||
1777 | /* add '*' */ | |
1778 | REALLOC_ARRAY(language_tags, num_langs + 1); | |
1779 | language_tags[num_langs++] = "*"; /* it's OK; this won't be freed */ | |
1780 | ||
1781 | /* compute decimal_places */ | |
1782 | for (max_q = 1, decimal_places = 0; | |
1783 | max_q < num_langs && decimal_places <= MAX_DECIMAL_PLACES; | |
1784 | decimal_places++, max_q *= 10) | |
1785 | ; | |
1786 | ||
5096d490 | 1787 | xsnprintf(q_format, sizeof(q_format), ";q=0.%%0%dd", decimal_places); |
f18604bb YE |
1788 | |
1789 | strbuf_addstr(buf, "Accept-Language: "); | |
1790 | ||
1791 | for (i = 0; i < num_langs; i++) { | |
1792 | if (i > 0) | |
1793 | strbuf_addstr(buf, ", "); | |
1794 | ||
1795 | strbuf_addstr(buf, language_tags[i]); | |
1796 | ||
1797 | if (i > 0) | |
1798 | strbuf_addf(buf, q_format, max_q - i); | |
1799 | ||
1800 | if (buf->len > MAX_ACCEPT_LANGUAGE_HEADER_SIZE) { | |
1801 | strbuf_remove(buf, last_buf_len, buf->len - last_buf_len); | |
1802 | break; | |
1803 | } | |
1804 | ||
1805 | last_buf_len = buf->len; | |
1806 | } | |
1807 | } | |
1808 | ||
1809 | /* free language tags -- last one is a static '*' */ | |
1810 | for (i = 0; i < num_langs - 1; i++) | |
1811 | free(language_tags[i]); | |
1812 | free(language_tags); | |
1813 | } | |
1814 | ||
1815 | /* | |
1816 | * Get an Accept-Language header which indicates user's preferred languages. | |
1817 | * | |
1818 | * Examples: | |
1819 | * LANGUAGE= -> "" | |
1820 | * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1" | |
1821 | * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1" | |
1822 | * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1" | |
1823 | * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1" | |
1824 | * LANGUAGE= LANG=C -> "" | |
1825 | */ | |
1826 | static const char *get_accept_language(void) | |
1827 | { | |
1828 | if (!cached_accept_language) { | |
1829 | struct strbuf buf = STRBUF_INIT; | |
1830 | write_accept_language(&buf); | |
1831 | if (buf.len > 0) | |
1832 | cached_accept_language = strbuf_detach(&buf, NULL); | |
1833 | } | |
1834 | ||
1835 | return cached_accept_language; | |
1836 | } | |
1837 | ||
835c4d36 DT |
1838 | static void http_opt_request_remainder(CURL *curl, off_t pos) |
1839 | { | |
1840 | char buf[128]; | |
1841 | xsnprintf(buf, sizeof(buf), "%"PRIuMAX"-", (uintmax_t)pos); | |
1842 | curl_easy_setopt(curl, CURLOPT_RANGE, buf); | |
1843 | } | |
1844 | ||
e929cd20 MH |
1845 | /* http_request() targets */ |
1846 | #define HTTP_REQUEST_STRBUF 0 | |
1847 | #define HTTP_REQUEST_FILE 1 | |
1848 | ||
1bbcc224 JK |
1849 | static int http_request(const char *url, |
1850 | void *result, int target, | |
1851 | const struct http_get_options *options) | |
e929cd20 MH |
1852 | { |
1853 | struct active_request_slot *slot; | |
1854 | struct slot_results results; | |
8cb01e2f | 1855 | struct curl_slist *headers = http_copy_default_headers(); |
e929cd20 | 1856 | struct strbuf buf = STRBUF_INIT; |
f18604bb | 1857 | const char *accept_language; |
e929cd20 MH |
1858 | int ret; |
1859 | ||
1860 | slot = get_active_slot(); | |
e929cd20 MH |
1861 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); |
1862 | ||
1863 | if (result == NULL) { | |
1864 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
1865 | } else { | |
1866 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
1867 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
1868 | ||
1869 | if (target == HTTP_REQUEST_FILE) { | |
f8117f55 | 1870 | off_t posn = ftello(result); |
e929cd20 MH |
1871 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, |
1872 | fwrite); | |
835c4d36 DT |
1873 | if (posn > 0) |
1874 | http_opt_request_remainder(slot->curl, posn); | |
e929cd20 MH |
1875 | } else |
1876 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
1877 | fwrite_buffer); | |
1878 | } | |
1879 | ||
f18604bb YE |
1880 | accept_language = get_accept_language(); |
1881 | ||
1882 | if (accept_language) | |
1883 | headers = curl_slist_append(headers, accept_language); | |
1884 | ||
e929cd20 | 1885 | strbuf_addstr(&buf, "Pragma:"); |
1bbcc224 | 1886 | if (options && options->no_cache) |
e929cd20 | 1887 | strbuf_addstr(&buf, " no-cache"); |
50d34137 JK |
1888 | if (options && options->initial_request && |
1889 | http_follow_config == HTTP_FOLLOW_INITIAL) | |
1890 | curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 1); | |
e929cd20 MH |
1891 | |
1892 | headers = curl_slist_append(headers, buf.buf); | |
1893 | ||
8ff14ed4 BW |
1894 | /* Add additional headers here */ |
1895 | if (options && options->extra_headers) { | |
1896 | const struct string_list_item *item; | |
1897 | for_each_string_list_item(item, options->extra_headers) { | |
1898 | headers = curl_slist_append(headers, item->string); | |
1899 | } | |
1900 | } | |
1901 | ||
e929cd20 MH |
1902 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
1903 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
1a53e692 | 1904 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); |
e6cf87b1 | 1905 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0); |
e929cd20 | 1906 | |
beed336c | 1907 | ret = run_one_slot(slot, &results); |
e929cd20 | 1908 | |
bf197fd7 JK |
1909 | if (options && options->content_type) { |
1910 | struct strbuf raw = STRBUF_INIT; | |
1911 | curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw); | |
e3131626 JK |
1912 | extract_content_type(&raw, options->content_type, |
1913 | options->charset); | |
bf197fd7 JK |
1914 | strbuf_release(&raw); |
1915 | } | |
4656bf47 | 1916 | |
78868962 JK |
1917 | if (options && options->effective_url) |
1918 | curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL, | |
1919 | options->effective_url); | |
4656bf47 | 1920 | |
e929cd20 MH |
1921 | curl_slist_free_all(headers); |
1922 | strbuf_release(&buf); | |
1923 | ||
1924 | return ret; | |
1925 | } | |
1926 | ||
c93c92f3 JK |
1927 | /* |
1928 | * Update the "base" url to a more appropriate value, as deduced by | |
1929 | * redirects seen when requesting a URL starting with "url". | |
1930 | * | |
1931 | * The "asked" parameter is a URL that we asked curl to access, and must begin | |
1932 | * with "base". | |
1933 | * | |
1934 | * The "got" parameter is the URL that curl reported to us as where we ended | |
1935 | * up. | |
1936 | * | |
1937 | * Returns 1 if we updated the base url, 0 otherwise. | |
1938 | * | |
1939 | * Our basic strategy is to compare "base" and "asked" to find the bits | |
1940 | * specific to our request. We then strip those bits off of "got" to yield the | |
1941 | * new base. So for example, if our base is "http://example.com/foo.git", | |
1942 | * and we ask for "http://example.com/foo.git/info/refs", we might end up | |
1943 | * with "https://other.example.com/foo.git/info/refs". We would want the | |
1944 | * new URL to become "https://other.example.com/foo.git". | |
1945 | * | |
1946 | * Note that this assumes a sane redirect scheme. It's entirely possible | |
1947 | * in the example above to end up at a URL that does not even end in | |
6628eb41 JK |
1948 | * "info/refs". In such a case we die. There's not much we can do, such a |
1949 | * scheme is unlikely to represent a real git repository, and failing to | |
1950 | * rewrite the base opens options for malicious redirects to do funny things. | |
c93c92f3 JK |
1951 | */ |
1952 | static int update_url_from_redirect(struct strbuf *base, | |
1953 | const char *asked, | |
1954 | const struct strbuf *got) | |
1955 | { | |
1956 | const char *tail; | |
986d7f4d | 1957 | size_t new_len; |
c93c92f3 JK |
1958 | |
1959 | if (!strcmp(asked, got->buf)) | |
1960 | return 0; | |
1961 | ||
de8118e1 | 1962 | if (!skip_prefix(asked, base->buf, &tail)) |
033abf97 | 1963 | BUG("update_url_from_redirect: %s is not a superset of %s", |
c93c92f3 JK |
1964 | asked, base->buf); |
1965 | ||
986d7f4d JK |
1966 | new_len = got->len; |
1967 | if (!strip_suffix_mem(got->buf, &new_len, tail)) | |
6628eb41 JK |
1968 | die(_("unable to update url base from redirection:\n" |
1969 | " asked for: %s\n" | |
1970 | " redirect: %s"), | |
1971 | asked, got->buf); | |
c93c92f3 JK |
1972 | |
1973 | strbuf_reset(base); | |
986d7f4d | 1974 | strbuf_add(base, got->buf, new_len); |
6628eb41 | 1975 | |
c93c92f3 JK |
1976 | return 1; |
1977 | } | |
1978 | ||
4656bf47 | 1979 | static int http_request_reauth(const char *url, |
4656bf47 | 1980 | void *result, int target, |
1bbcc224 | 1981 | struct http_get_options *options) |
8d677edc | 1982 | { |
1bbcc224 | 1983 | int ret = http_request(url, result, target, options); |
c93c92f3 | 1984 | |
8e27391a JT |
1985 | if (ret != HTTP_OK && ret != HTTP_REAUTH) |
1986 | return ret; | |
1987 | ||
c93c92f3 JK |
1988 | if (options && options->effective_url && options->base_url) { |
1989 | if (update_url_from_redirect(options->base_url, | |
1990 | url, options->effective_url)) { | |
1991 | credential_from_url(&http_auth, options->base_url->buf); | |
1992 | url = options->effective_url->buf; | |
1993 | } | |
1994 | } | |
1995 | ||
8d677edc JK |
1996 | if (ret != HTTP_REAUTH) |
1997 | return ret; | |
6d052d78 JK |
1998 | |
1999 | /* | |
e6cf87b1 MS |
2000 | * The previous request may have put cruft into our output stream; we |
2001 | * should clear it out before making our next request. | |
6d052d78 | 2002 | */ |
e6cf87b1 MS |
2003 | switch (target) { |
2004 | case HTTP_REQUEST_STRBUF: | |
2005 | strbuf_reset(result); | |
2006 | break; | |
2007 | case HTTP_REQUEST_FILE: | |
2008 | if (fflush(result)) { | |
2009 | error_errno("unable to flush a file"); | |
2010 | return HTTP_START_FAILED; | |
2011 | } | |
2012 | rewind(result); | |
2013 | if (ftruncate(fileno(result), 0) < 0) { | |
2014 | error_errno("unable to truncate a file"); | |
2015 | return HTTP_START_FAILED; | |
6d052d78 | 2016 | } |
e6cf87b1 MS |
2017 | break; |
2018 | default: | |
2019 | BUG("Unknown http_request target"); | |
6d052d78 | 2020 | } |
2501aff8 JK |
2021 | |
2022 | credential_fill(&http_auth); | |
2023 | ||
1bbcc224 | 2024 | return http_request(url, result, target, options); |
8d677edc JK |
2025 | } |
2026 | ||
4656bf47 | 2027 | int http_get_strbuf(const char *url, |
1bbcc224 JK |
2028 | struct strbuf *result, |
2029 | struct http_get_options *options) | |
e929cd20 | 2030 | { |
1bbcc224 | 2031 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
2032 | } |
2033 | ||
83e41e2e | 2034 | /* |
a7793a74 | 2035 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
2036 | * |
2037 | * If a previous interrupted download is detected (i.e. a previous temporary | |
2038 | * file is still around) the download is resumed. | |
2039 | */ | |
1bbcc224 JK |
2040 | static int http_get_file(const char *url, const char *filename, |
2041 | struct http_get_options *options) | |
e929cd20 MH |
2042 | { |
2043 | int ret; | |
2044 | struct strbuf tmpfile = STRBUF_INIT; | |
2045 | FILE *result; | |
2046 | ||
2047 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
2048 | result = fopen(tmpfile.buf, "a"); | |
3d1fb769 | 2049 | if (!result) { |
e929cd20 MH |
2050 | error("Unable to open local file %s", tmpfile.buf); |
2051 | ret = HTTP_ERROR; | |
2052 | goto cleanup; | |
2053 | } | |
2054 | ||
1bbcc224 | 2055 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
2056 | fclose(result); |
2057 | ||
cb5add58 | 2058 | if (ret == HTTP_OK && finalize_object_file(tmpfile.buf, filename)) |
e929cd20 MH |
2059 | ret = HTTP_ERROR; |
2060 | cleanup: | |
2061 | strbuf_release(&tmpfile); | |
2062 | return ret; | |
2063 | } | |
2064 | ||
c13b2633 | 2065 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 | 2066 | { |
1bbcc224 | 2067 | struct http_get_options options = {0}; |
d7e92806 MH |
2068 | char *url; |
2069 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 2070 | int ret = -1; |
d7e92806 | 2071 | |
1bbcc224 JK |
2072 | options.no_cache = 1; |
2073 | ||
c13b2633 | 2074 | url = quote_ref_url(base, ref->name); |
1bbcc224 | 2075 | if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) { |
0d5896e1 | 2076 | strbuf_rtrim(&buffer); |
ae041a0f | 2077 | if (buffer.len == the_hash_algo->hexsz) |
f4e54d02 | 2078 | ret = get_oid_hex(buffer.buf, &ref->old_oid); |
59556548 | 2079 | else if (starts_with(buffer.buf, "ref: ")) { |
0d5896e1 MH |
2080 | ref->symref = xstrdup(buffer.buf + 5); |
2081 | ret = 0; | |
d7e92806 | 2082 | } |
d7e92806 MH |
2083 | } |
2084 | ||
2085 | strbuf_release(&buffer); | |
2086 | free(url); | |
2087 | return ret; | |
2088 | } | |
b8caac2b TRC |
2089 | |
2090 | /* Helpers for fetching packs */ | |
05dfc7ca | 2091 | static char *fetch_pack_index(unsigned char *hash, const char *base_url) |
b8caac2b | 2092 | { |
750ef425 | 2093 | char *url, *tmp; |
b8caac2b | 2094 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 2095 | |
b8caac2b | 2096 | if (http_is_verbose) |
05dfc7ca | 2097 | fprintf(stderr, "Getting index for pack %s\n", hash_to_hex(hash)); |
b8caac2b TRC |
2098 | |
2099 | end_url_with_slash(&buf, base_url); | |
05dfc7ca | 2100 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", hash_to_hex(hash)); |
b8caac2b TRC |
2101 | url = strbuf_detach(&buf, NULL); |
2102 | ||
05dfc7ca | 2103 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(hash)); |
750ef425 SP |
2104 | tmp = strbuf_detach(&buf, NULL); |
2105 | ||
70900eda | 2106 | if (http_get_file(url, tmp, NULL) != HTTP_OK) { |
82247e9b | 2107 | error("Unable to get pack index %s", url); |
6a83d902 | 2108 | FREE_AND_NULL(tmp); |
750ef425 | 2109 | } |
b8caac2b | 2110 | |
b8caac2b | 2111 | free(url); |
750ef425 | 2112 | return tmp; |
b8caac2b TRC |
2113 | } |
2114 | ||
2115 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
2116 | unsigned char *sha1, const char *base_url) | |
2117 | { | |
2118 | struct packed_git *new_pack; | |
750ef425 SP |
2119 | char *tmp_idx = NULL; |
2120 | int ret; | |
b8caac2b | 2121 | |
750ef425 | 2122 | if (has_pack_index(sha1)) { |
8b9c2dd4 | 2123 | new_pack = parse_pack_index(sha1, sha1_pack_index_name(sha1)); |
750ef425 SP |
2124 | if (!new_pack) |
2125 | return -1; /* parse_pack_index() already issued error message */ | |
2126 | goto add_pack; | |
2127 | } | |
2128 | ||
2129 | tmp_idx = fetch_pack_index(sha1, base_url); | |
2130 | if (!tmp_idx) | |
b8caac2b TRC |
2131 | return -1; |
2132 | ||
750ef425 SP |
2133 | new_pack = parse_pack_index(sha1, tmp_idx); |
2134 | if (!new_pack) { | |
2135 | unlink(tmp_idx); | |
2136 | free(tmp_idx); | |
2137 | ||
b8caac2b | 2138 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
2139 | } |
2140 | ||
2141 | ret = verify_pack_index(new_pack); | |
2142 | if (!ret) { | |
2143 | close_pack_index(new_pack); | |
cb5add58 | 2144 | ret = finalize_object_file(tmp_idx, sha1_pack_index_name(sha1)); |
750ef425 SP |
2145 | } |
2146 | free(tmp_idx); | |
2147 | if (ret) | |
2148 | return -1; | |
2149 | ||
2150 | add_pack: | |
b8caac2b TRC |
2151 | new_pack->next = *packs_head; |
2152 | *packs_head = new_pack; | |
2153 | return 0; | |
2154 | } | |
2155 | ||
2156 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
2157 | { | |
1bbcc224 | 2158 | struct http_get_options options = {0}; |
ddc56d47 JK |
2159 | int ret = 0; |
2160 | char *url; | |
2161 | const char *data; | |
b8caac2b | 2162 | struct strbuf buf = STRBUF_INIT; |
ddc56d47 | 2163 | struct object_id oid; |
b8caac2b TRC |
2164 | |
2165 | end_url_with_slash(&buf, base_url); | |
2166 | strbuf_addstr(&buf, "objects/info/packs"); | |
2167 | url = strbuf_detach(&buf, NULL); | |
2168 | ||
1bbcc224 JK |
2169 | options.no_cache = 1; |
2170 | ret = http_get_strbuf(url, &buf, &options); | |
b8caac2b TRC |
2171 | if (ret != HTTP_OK) |
2172 | goto cleanup; | |
2173 | ||
2174 | data = buf.buf; | |
ddc56d47 JK |
2175 | while (*data) { |
2176 | if (skip_prefix(data, "P pack-", &data) && | |
2177 | !parse_oid_hex(data, &oid, &data) && | |
2178 | skip_prefix(data, ".pack", &data) && | |
2179 | (*data == '\n' || *data == '\0')) { | |
2180 | fetch_and_setup_pack_index(packs_head, oid.hash, base_url); | |
2181 | } else { | |
2182 | data = strchrnul(data, '\n'); | |
b8caac2b | 2183 | } |
ddc56d47 JK |
2184 | if (*data) |
2185 | data++; /* skip past newline */ | |
b8caac2b TRC |
2186 | } |
2187 | ||
2188 | cleanup: | |
2189 | free(url); | |
2190 | return ret; | |
2191 | } | |
2264dfa5 TRC |
2192 | |
2193 | void release_http_pack_request(struct http_pack_request *preq) | |
2194 | { | |
2195 | if (preq->packfile != NULL) { | |
2196 | fclose(preq->packfile); | |
2197 | preq->packfile = NULL; | |
2264dfa5 | 2198 | } |
2264dfa5 | 2199 | preq->slot = NULL; |
390c6cbc | 2200 | strbuf_release(&preq->tmpfile); |
2264dfa5 | 2201 | free(preq->url); |
826aed50 | 2202 | free(preq); |
2264dfa5 TRC |
2203 | } |
2204 | ||
2205 | int finish_http_pack_request(struct http_pack_request *preq) | |
2206 | { | |
2264dfa5 | 2207 | struct packed_git **lst; |
021ab6f0 | 2208 | struct packed_git *p = preq->target; |
fe72d420 | 2209 | char *tmp_idx; |
9ae97018 | 2210 | size_t len; |
d3180279 | 2211 | struct child_process ip = CHILD_PROCESS_INIT; |
2264dfa5 | 2212 | |
fe72d420 | 2213 | close_pack_index(p); |
2264dfa5 | 2214 | |
3065274c SP |
2215 | fclose(preq->packfile); |
2216 | preq->packfile = NULL; | |
2264dfa5 TRC |
2217 | |
2218 | lst = preq->lst; | |
021ab6f0 | 2219 | while (*lst != p) |
2264dfa5 TRC |
2220 | lst = &((*lst)->next); |
2221 | *lst = (*lst)->next; | |
2222 | ||
390c6cbc | 2223 | if (!strip_suffix(preq->tmpfile.buf, ".pack.temp", &len)) |
033abf97 | 2224 | BUG("pack tmpfile does not end in .pack.temp?"); |
390c6cbc | 2225 | tmp_idx = xstrfmt("%.*s.idx.temp", (int)len, preq->tmpfile.buf); |
fe72d420 | 2226 | |
c7191fa5 RS |
2227 | argv_array_push(&ip.args, "index-pack"); |
2228 | argv_array_pushl(&ip.args, "-o", tmp_idx, NULL); | |
390c6cbc | 2229 | argv_array_push(&ip.args, preq->tmpfile.buf); |
fe72d420 SP |
2230 | ip.git_cmd = 1; |
2231 | ip.no_stdin = 1; | |
2232 | ip.no_stdout = 1; | |
2233 | ||
2234 | if (run_command(&ip)) { | |
390c6cbc | 2235 | unlink(preq->tmpfile.buf); |
fe72d420 SP |
2236 | unlink(tmp_idx); |
2237 | free(tmp_idx); | |
2264dfa5 | 2238 | return -1; |
fe72d420 SP |
2239 | } |
2240 | ||
538b1523 | 2241 | unlink(sha1_pack_index_name(p->hash)); |
2264dfa5 | 2242 | |
538b1523 | 2243 | if (finalize_object_file(preq->tmpfile.buf, sha1_pack_name(p->hash)) |
2244 | || finalize_object_file(tmp_idx, sha1_pack_index_name(p->hash))) { | |
fe72d420 | 2245 | free(tmp_idx); |
2264dfa5 | 2246 | return -1; |
fe72d420 | 2247 | } |
2264dfa5 | 2248 | |
5babff16 | 2249 | install_packed_git(the_repository, p); |
fe72d420 | 2250 | free(tmp_idx); |
2264dfa5 TRC |
2251 | return 0; |
2252 | } | |
2253 | ||
2254 | struct http_pack_request *new_http_pack_request( | |
2255 | struct packed_git *target, const char *base_url) | |
2256 | { | |
f8117f55 | 2257 | off_t prev_posn = 0; |
2264dfa5 TRC |
2258 | struct strbuf buf = STRBUF_INIT; |
2259 | struct http_pack_request *preq; | |
2260 | ||
ec99c9a8 | 2261 | preq = xcalloc(1, sizeof(*preq)); |
390c6cbc | 2262 | strbuf_init(&preq->tmpfile, 0); |
2264dfa5 | 2263 | preq->target = target; |
2264dfa5 TRC |
2264 | |
2265 | end_url_with_slash(&buf, base_url); | |
2266 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
05dfc7ca | 2267 | hash_to_hex(target->hash)); |
bb99190e | 2268 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 2269 | |
538b1523 | 2270 | strbuf_addf(&preq->tmpfile, "%s.temp", sha1_pack_name(target->hash)); |
390c6cbc | 2271 | preq->packfile = fopen(preq->tmpfile.buf, "a"); |
2264dfa5 TRC |
2272 | if (!preq->packfile) { |
2273 | error("Unable to open local file %s for pack", | |
390c6cbc | 2274 | preq->tmpfile.buf); |
2264dfa5 TRC |
2275 | goto abort; |
2276 | } | |
2277 | ||
2278 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
2279 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
2280 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 2281 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
2282 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
2283 | no_pragma_header); | |
2284 | ||
2285 | /* | |
2286 | * If there is data present from a previous transfer attempt, | |
2287 | * resume where it left off | |
2288 | */ | |
f8117f55 | 2289 | prev_posn = ftello(preq->packfile); |
2264dfa5 TRC |
2290 | if (prev_posn>0) { |
2291 | if (http_is_verbose) | |
2292 | fprintf(stderr, | |
838ecf0b | 2293 | "Resuming fetch of pack %s at byte %"PRIuMAX"\n", |
05dfc7ca | 2294 | hash_to_hex(target->hash), |
538b1523 | 2295 | (uintmax_t)prev_posn); |
835c4d36 | 2296 | http_opt_request_remainder(preq->slot->curl, prev_posn); |
2264dfa5 TRC |
2297 | } |
2298 | ||
2299 | return preq; | |
2300 | ||
2301 | abort: | |
390c6cbc | 2302 | strbuf_release(&preq->tmpfile); |
bb99190e | 2303 | free(preq->url); |
5ae9ebfd | 2304 | free(preq); |
2264dfa5 TRC |
2305 | return NULL; |
2306 | } | |
5424bc55 TRC |
2307 | |
2308 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 2309 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
2310 | void *data) |
2311 | { | |
2312 | unsigned char expn[4096]; | |
2313 | size_t size = eltsize * nmemb; | |
2314 | int posn = 0; | |
17966c0a EW |
2315 | struct http_object_request *freq = data; |
2316 | struct active_request_slot *slot = freq->slot; | |
2317 | ||
2318 | if (slot) { | |
2319 | CURLcode c = curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, | |
2320 | &slot->http_code); | |
2321 | if (c != CURLE_OK) | |
033abf97 | 2322 | BUG("curl_easy_getinfo for HTTP code failed: %s", |
17966c0a | 2323 | curl_easy_strerror(c)); |
3680f16f | 2324 | if (slot->http_code >= 300) |
5c3d5a38 | 2325 | return nmemb; |
17966c0a EW |
2326 | } |
2327 | ||
5424bc55 TRC |
2328 | do { |
2329 | ssize_t retval = xwrite(freq->localfile, | |
2330 | (char *) ptr + posn, size - posn); | |
2331 | if (retval < 0) | |
5c3d5a38 | 2332 | return posn / eltsize; |
5424bc55 TRC |
2333 | posn += retval; |
2334 | } while (posn < size); | |
2335 | ||
2336 | freq->stream.avail_in = size; | |
a04ff3ec | 2337 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
2338 | do { |
2339 | freq->stream.next_out = expn; | |
2340 | freq->stream.avail_out = sizeof(expn); | |
2341 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
eed0e60f | 2342 | the_hash_algo->update_fn(&freq->c, expn, |
2343 | sizeof(expn) - freq->stream.avail_out); | |
5424bc55 | 2344 | } while (freq->stream.avail_in && freq->zret == Z_OK); |
5c3d5a38 | 2345 | return nmemb; |
5424bc55 TRC |
2346 | } |
2347 | ||
2348 | struct http_object_request *new_http_object_request(const char *base_url, | |
f0be0db1 | 2349 | const struct object_id *oid) |
5424bc55 | 2350 | { |
f0be0db1 | 2351 | char *hex = oid_to_hex(oid); |
ea657730 | 2352 | struct strbuf filename = STRBUF_INIT; |
390c6cbc | 2353 | struct strbuf prevfile = STRBUF_INIT; |
5424bc55 | 2354 | int prevlocal; |
a04ff3ec | 2355 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 | 2356 | ssize_t prev_read = 0; |
f8117f55 | 2357 | off_t prev_posn = 0; |
5424bc55 TRC |
2358 | struct http_object_request *freq; |
2359 | ||
ec99c9a8 | 2360 | freq = xcalloc(1, sizeof(*freq)); |
390c6cbc | 2361 | strbuf_init(&freq->tmpfile, 0); |
f0be0db1 | 2362 | oidcpy(&freq->oid, oid); |
5424bc55 TRC |
2363 | freq->localfile = -1; |
2364 | ||
514c5fdd | 2365 | loose_object_path(the_repository, &filename, oid); |
390c6cbc | 2366 | strbuf_addf(&freq->tmpfile, "%s.temp", filename.buf); |
5424bc55 | 2367 | |
390c6cbc JK |
2368 | strbuf_addf(&prevfile, "%s.prev", filename.buf); |
2369 | unlink_or_warn(prevfile.buf); | |
2370 | rename(freq->tmpfile.buf, prevfile.buf); | |
2371 | unlink_or_warn(freq->tmpfile.buf); | |
ea657730 | 2372 | strbuf_release(&filename); |
5424bc55 TRC |
2373 | |
2374 | if (freq->localfile != -1) | |
2375 | error("fd leakage in start: %d", freq->localfile); | |
390c6cbc | 2376 | freq->localfile = open(freq->tmpfile.buf, |
5424bc55 TRC |
2377 | O_WRONLY | O_CREAT | O_EXCL, 0666); |
2378 | /* | |
2379 | * This could have failed due to the "lazy directory creation"; | |
2380 | * try to mkdir the last path component. | |
2381 | */ | |
2382 | if (freq->localfile < 0 && errno == ENOENT) { | |
390c6cbc | 2383 | char *dir = strrchr(freq->tmpfile.buf, '/'); |
5424bc55 TRC |
2384 | if (dir) { |
2385 | *dir = 0; | |
390c6cbc | 2386 | mkdir(freq->tmpfile.buf, 0777); |
5424bc55 TRC |
2387 | *dir = '/'; |
2388 | } | |
390c6cbc | 2389 | freq->localfile = open(freq->tmpfile.buf, |
5424bc55 TRC |
2390 | O_WRONLY | O_CREAT | O_EXCL, 0666); |
2391 | } | |
2392 | ||
2393 | if (freq->localfile < 0) { | |
390c6cbc JK |
2394 | error_errno("Couldn't create temporary file %s", |
2395 | freq->tmpfile.buf); | |
5424bc55 TRC |
2396 | goto abort; |
2397 | } | |
2398 | ||
5424bc55 TRC |
2399 | git_inflate_init(&freq->stream); |
2400 | ||
eed0e60f | 2401 | the_hash_algo->init_fn(&freq->c); |
5424bc55 | 2402 | |
bb99190e | 2403 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
2404 | |
2405 | /* | |
2406 | * If a previous temp file is present, process what was already | |
2407 | * fetched. | |
2408 | */ | |
390c6cbc | 2409 | prevlocal = open(prevfile.buf, O_RDONLY); |
5424bc55 TRC |
2410 | if (prevlocal != -1) { |
2411 | do { | |
2412 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
2413 | if (prev_read>0) { | |
2414 | if (fwrite_sha1_file(prev_buf, | |
2415 | 1, | |
2416 | prev_read, | |
2417 | freq) == prev_read) { | |
2418 | prev_posn += prev_read; | |
2419 | } else { | |
2420 | prev_read = -1; | |
2421 | } | |
2422 | } | |
2423 | } while (prev_read > 0); | |
2424 | close(prevlocal); | |
2425 | } | |
390c6cbc JK |
2426 | unlink_or_warn(prevfile.buf); |
2427 | strbuf_release(&prevfile); | |
5424bc55 TRC |
2428 | |
2429 | /* | |
2430 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
2431 | * file; also rewind to the beginning of the local file. | |
2432 | */ | |
2433 | if (prev_read == -1) { | |
2434 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
2435 | git_inflate_init(&freq->stream); | |
eed0e60f | 2436 | the_hash_algo->init_fn(&freq->c); |
5424bc55 TRC |
2437 | if (prev_posn>0) { |
2438 | prev_posn = 0; | |
2439 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 2440 | if (ftruncate(freq->localfile, 0) < 0) { |
d2e255ee | 2441 | error_errno("Couldn't truncate temporary file %s", |
390c6cbc | 2442 | freq->tmpfile.buf); |
0c4f21e4 JL |
2443 | goto abort; |
2444 | } | |
5424bc55 TRC |
2445 | } |
2446 | } | |
2447 | ||
2448 | freq->slot = get_active_slot(); | |
2449 | ||
2450 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
17966c0a | 2451 | curl_easy_setopt(freq->slot->curl, CURLOPT_FAILONERROR, 0); |
5424bc55 TRC |
2452 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); |
2453 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 2454 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
2455 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
2456 | ||
2457 | /* | |
2458 | * If we have successfully processed data from a previous fetch | |
2459 | * attempt, only fetch the data we don't already have. | |
2460 | */ | |
2461 | if (prev_posn>0) { | |
2462 | if (http_is_verbose) | |
2463 | fprintf(stderr, | |
838ecf0b RJ |
2464 | "Resuming fetch of object %s at byte %"PRIuMAX"\n", |
2465 | hex, (uintmax_t)prev_posn); | |
835c4d36 | 2466 | http_opt_request_remainder(freq->slot->curl, prev_posn); |
5424bc55 TRC |
2467 | } |
2468 | ||
2469 | return freq; | |
2470 | ||
5424bc55 | 2471 | abort: |
390c6cbc | 2472 | strbuf_release(&prevfile); |
bb99190e | 2473 | free(freq->url); |
5424bc55 TRC |
2474 | free(freq); |
2475 | return NULL; | |
2476 | } | |
2477 | ||
2478 | void process_http_object_request(struct http_object_request *freq) | |
2479 | { | |
2480 | if (freq->slot == NULL) | |
2481 | return; | |
2482 | freq->curl_result = freq->slot->curl_result; | |
2483 | freq->http_code = freq->slot->http_code; | |
2484 | freq->slot = NULL; | |
2485 | } | |
2486 | ||
2487 | int finish_http_object_request(struct http_object_request *freq) | |
2488 | { | |
2489 | struct stat st; | |
ea657730 | 2490 | struct strbuf filename = STRBUF_INIT; |
5424bc55 TRC |
2491 | |
2492 | close(freq->localfile); | |
2493 | freq->localfile = -1; | |
2494 | ||
2495 | process_http_object_request(freq); | |
2496 | ||
2497 | if (freq->http_code == 416) { | |
bd757c18 | 2498 | warning("requested range invalid; we may already have all the data."); |
5424bc55 | 2499 | } else if (freq->curl_result != CURLE_OK) { |
390c6cbc | 2500 | if (stat(freq->tmpfile.buf, &st) == 0) |
5424bc55 | 2501 | if (st.st_size == 0) |
390c6cbc | 2502 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2503 | return -1; |
2504 | } | |
2505 | ||
2506 | git_inflate_end(&freq->stream); | |
eed0e60f | 2507 | the_hash_algo->final_fn(freq->real_oid.hash, &freq->c); |
5424bc55 | 2508 | if (freq->zret != Z_STREAM_END) { |
390c6cbc | 2509 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2510 | return -1; |
2511 | } | |
f0be0db1 | 2512 | if (!oideq(&freq->oid, &freq->real_oid)) { |
390c6cbc | 2513 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2514 | return -1; |
2515 | } | |
514c5fdd | 2516 | loose_object_path(the_repository, &filename, &freq->oid); |
390c6cbc | 2517 | freq->rename = finalize_object_file(freq->tmpfile.buf, filename.buf); |
ea657730 | 2518 | strbuf_release(&filename); |
5424bc55 TRC |
2519 | |
2520 | return freq->rename; | |
2521 | } | |
2522 | ||
2523 | void abort_http_object_request(struct http_object_request *freq) | |
2524 | { | |
390c6cbc | 2525 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2526 | |
2527 | release_http_object_request(freq); | |
2528 | } | |
2529 | ||
2530 | void release_http_object_request(struct http_object_request *freq) | |
2531 | { | |
2532 | if (freq->localfile != -1) { | |
2533 | close(freq->localfile); | |
2534 | freq->localfile = -1; | |
2535 | } | |
ce528de0 | 2536 | FREE_AND_NULL(freq->url); |
4b9fa0e3 TRC |
2537 | if (freq->slot != NULL) { |
2538 | freq->slot->callback_func = NULL; | |
2539 | freq->slot->callback_data = NULL; | |
2540 | release_active_slot(freq->slot); | |
2541 | freq->slot = NULL; | |
2542 | } | |
390c6cbc | 2543 | strbuf_release(&freq->tmpfile); |
5424bc55 | 2544 | } |