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1c4b6604 | 1 | #include "git-compat-util.h" |
e4ff3b67 | 2 | #include "git-curl-compat.h" |
29508e1e | 3 | #include "http.h" |
b2141fc1 | 4 | #include "config.h" |
2264dfa5 | 5 | #include "pack.h" |
de1a2fdd | 6 | #include "sideband.h" |
fe72d420 | 7 | #include "run-command.h" |
f39f72d8 | 8 | #include "url.h" |
6a56993b | 9 | #include "urlmatch.h" |
148bb6a7 | 10 | #include "credential.h" |
745c7c8e | 11 | #include "version.h" |
047ec602 | 12 | #include "pkt-line.h" |
93f7d910 | 13 | #include "gettext.h" |
f4113cac | 14 | #include "transport.h" |
4f39cd82 | 15 | #include "packfile.h" |
19113a26 | 16 | #include "protocol.h" |
83411783 | 17 | #include "string-list.h" |
a80d72db | 18 | #include "object-store.h" |
29508e1e | 19 | |
74c682d3 | 20 | static struct trace_key trace_curl = TRACE_KEY_INIT(CURL); |
8ba18e6f | 21 | static int trace_curl_data = 1; |
827e7d4d | 22 | static int trace_curl_redact = 1; |
c915f11e | 23 | long int git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER; |
4251ccbd | 24 | int active_requests; |
e9176745 | 25 | int http_is_verbose; |
37ee680d | 26 | ssize_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 27 | |
ad75ebe5 TRC |
28 | static int min_curl_sessions = 1; |
29 | static int curl_session_count; | |
cc3530e8 MH |
30 | static int max_requests = -1; |
31 | static CURLM *curlm; | |
cc3530e8 | 32 | static CURL *curl_default; |
5424bc55 TRC |
33 | |
34 | #define PREV_BUF_SIZE 4096 | |
5424bc55 | 35 | |
29508e1e NH |
36 | char curl_errorstr[CURL_ERROR_SIZE]; |
37 | ||
cc3530e8 | 38 | static int curl_ssl_verify = -1; |
4bc444eb | 39 | static int curl_ssl_try; |
d73019fe | 40 | static const char *curl_http_version = NULL; |
4251ccbd | 41 | static const char *ssl_cert; |
f6f2a9e4 | 42 | static const char *ssl_cipherlist; |
01861cb7 EP |
43 | static const char *ssl_version; |
44 | static struct { | |
45 | const char *name; | |
46 | long ssl_version; | |
47 | } sslversions[] = { | |
48 | { "sslv2", CURL_SSLVERSION_SSLv2 }, | |
49 | { "sslv3", CURL_SSLVERSION_SSLv3 }, | |
50 | { "tlsv1", CURL_SSLVERSION_TLSv1 }, | |
e4ff3b67 | 51 | #ifdef GIT_CURL_HAVE_CURL_SSLVERSION_TLSv1_0 |
01861cb7 EP |
52 | { "tlsv1.0", CURL_SSLVERSION_TLSv1_0 }, |
53 | { "tlsv1.1", CURL_SSLVERSION_TLSv1_1 }, | |
54 | { "tlsv1.2", CURL_SSLVERSION_TLSv1_2 }, | |
55 | #endif | |
e4ff3b67 | 56 | #ifdef GIT_CURL_HAVE_CURL_SSLVERSION_TLSv1_3 |
d81b651f LV |
57 | { "tlsv1.3", CURL_SSLVERSION_TLSv1_3 }, |
58 | #endif | |
01861cb7 | 59 | }; |
4251ccbd | 60 | static const char *ssl_key; |
4251ccbd | 61 | static const char *ssl_capath; |
b8fd6008 | 62 | static const char *curl_no_proxy; |
e4ff3b67 | 63 | #ifdef GIT_CURL_HAVE_CURLOPT_PINNEDPUBLICKEY |
aeff8a61 CE |
64 | static const char *ssl_pinnedkey; |
65 | #endif | |
4251ccbd | 66 | static const char *ssl_cainfo; |
cc3530e8 MH |
67 | static long curl_low_speed_limit = -1; |
68 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
69 | static int curl_ftp_no_epsv; |
70 | static const char *curl_http_proxy; | |
ef976395 | 71 | static const char *http_proxy_authmethod; |
88238e02 JLS |
72 | |
73 | static const char *http_proxy_ssl_cert; | |
74 | static const char *http_proxy_ssl_key; | |
75 | static const char *http_proxy_ssl_ca_info; | |
76 | static struct credential proxy_cert_auth = CREDENTIAL_INIT; | |
77 | static int proxy_ssl_cert_password_required; | |
78 | ||
ef976395 KF |
79 | static struct { |
80 | const char *name; | |
81 | long curlauth_param; | |
82 | } proxy_authmethods[] = { | |
83 | { "basic", CURLAUTH_BASIC }, | |
84 | { "digest", CURLAUTH_DIGEST }, | |
85 | { "negotiate", CURLAUTH_GSSNEGOTIATE }, | |
86 | { "ntlm", CURLAUTH_NTLM }, | |
ef976395 | 87 | { "anyauth", CURLAUTH_ANY }, |
ef976395 KF |
88 | /* |
89 | * CURLAUTH_DIGEST_IE has no corresponding command-line option in | |
90 | * curl(1) and is not included in CURLAUTH_ANY, so we leave it out | |
91 | * here, too | |
92 | */ | |
93 | }; | |
dd5df538 | 94 | #ifdef CURLGSSAPI_DELEGATION_FLAG |
26a7b234 PS |
95 | static const char *curl_deleg; |
96 | static struct { | |
97 | const char *name; | |
98 | long curl_deleg_param; | |
99 | } curl_deleg_levels[] = { | |
100 | { "none", CURLGSSAPI_DELEGATION_NONE }, | |
101 | { "policy", CURLGSSAPI_DELEGATION_POLICY_FLAG }, | |
102 | { "always", CURLGSSAPI_DELEGATION_FLAG }, | |
103 | }; | |
104 | #endif | |
105 | ||
372370f1 KF |
106 | static struct credential proxy_auth = CREDENTIAL_INIT; |
107 | static const char *curl_proxyuserpwd; | |
bcfb95dd | 108 | static const char *curl_cookie_file; |
912b2acf | 109 | static int curl_save_cookies; |
2501aff8 | 110 | struct credential http_auth = CREDENTIAL_INIT; |
a4ddbc33 | 111 | static int http_proactive_auth; |
b1d1058c | 112 | static const char *user_agent; |
40a18fc7 | 113 | static int curl_empty_auth = -1; |
29508e1e | 114 | |
50d34137 JK |
115 | enum http_follow_config http_follow_config = HTTP_FOLLOW_INITIAL; |
116 | ||
148bb6a7 | 117 | static struct credential cert_auth = CREDENTIAL_INIT; |
30dd9163 | 118 | static int ssl_cert_password_required; |
4dbe6646 | 119 | static unsigned long http_auth_methods = CURLAUTH_ANY; |
40a18fc7 JK |
120 | static int http_auth_methods_restricted; |
121 | /* Modes for which empty_auth cannot actually help us. */ | |
122 | static unsigned long empty_auth_useless = | |
123 | CURLAUTH_BASIC | |
40a18fc7 | 124 | | CURLAUTH_DIGEST_IE |
40a18fc7 | 125 | | CURLAUTH_DIGEST; |
30dd9163 | 126 | |
cc3530e8 | 127 | static struct curl_slist *pragma_header; |
5424bc55 | 128 | static struct curl_slist *no_pragma_header; |
4d17fd25 | 129 | static struct string_list extra_http_headers = STRING_LIST_INIT_DUP; |
e9176745 | 130 | |
511cfd3b CC |
131 | static struct curl_slist *host_resolutions; |
132 | ||
4251ccbd | 133 | static struct active_request_slot *active_queue_head; |
29508e1e | 134 | |
f18604bb YE |
135 | static char *cached_accept_language; |
136 | ||
21084e84 JS |
137 | static char *http_ssl_backend; |
138 | ||
93aef7c7 | 139 | static int http_schannel_check_revoke = 1; |
b67d40ad JS |
140 | /* |
141 | * With the backend being set to `schannel`, setting sslCAinfo would override | |
142 | * the Certificate Store in cURL v7.60.0 and later, which is not what we want | |
143 | * by default. | |
144 | */ | |
145 | static int http_schannel_use_ssl_cainfo; | |
93aef7c7 | 146 | |
a04ff3ec | 147 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
148 | { |
149 | size_t size = eltsize * nmemb; | |
f444e528 JH |
150 | struct buffer *buffer = buffer_; |
151 | ||
028c2976 MH |
152 | if (size > buffer->buf.len - buffer->posn) |
153 | size = buffer->buf.len - buffer->posn; | |
154 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 155 | buffer->posn += size; |
028c2976 | 156 | |
5c3d5a38 | 157 | return size / eltsize; |
29508e1e NH |
158 | } |
159 | ||
4bd481e0 | 160 | int seek_buffer(void *clientp, curl_off_t offset, int origin) |
3944ba0c MS |
161 | { |
162 | struct buffer *buffer = clientp; | |
163 | ||
4bd481e0 JK |
164 | if (origin != SEEK_SET) |
165 | BUG("seek_buffer only handles SEEK_SET"); | |
166 | if (offset < 0 || offset >= buffer->buf.len) { | |
167 | error("curl seek would be outside of buffer"); | |
168 | return CURL_SEEKFUNC_FAIL; | |
3944ba0c | 169 | } |
4bd481e0 JK |
170 | |
171 | buffer->posn = offset; | |
172 | return CURL_SEEKFUNC_OK; | |
3944ba0c | 173 | } |
3944ba0c | 174 | |
a04ff3ec | 175 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
176 | { |
177 | size_t size = eltsize * nmemb; | |
f444e528 JH |
178 | struct strbuf *buffer = buffer_; |
179 | ||
028c2976 | 180 | strbuf_add(buffer, ptr, size); |
5c3d5a38 | 181 | return nmemb; |
29508e1e NH |
182 | } |
183 | ||
a04ff3ec | 184 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 185 | { |
5c3d5a38 | 186 | return nmemb; |
29508e1e NH |
187 | } |
188 | ||
b90a3d7b JH |
189 | static void closedown_active_slot(struct active_request_slot *slot) |
190 | { | |
191 | active_requests--; | |
192 | slot->in_use = 0; | |
193 | } | |
194 | ||
195 | static void finish_active_slot(struct active_request_slot *slot) | |
196 | { | |
197 | closedown_active_slot(slot); | |
198 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); | |
199 | ||
afe8a907 | 200 | if (slot->finished) |
b90a3d7b JH |
201 | (*slot->finished) = 1; |
202 | ||
203 | /* Store slot results so they can be read after the slot is reused */ | |
afe8a907 | 204 | if (slot->results) { |
b90a3d7b JH |
205 | slot->results->curl_result = slot->curl_result; |
206 | slot->results->http_code = slot->http_code; | |
b90a3d7b JH |
207 | curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL, |
208 | &slot->results->auth_avail); | |
372370f1 KF |
209 | |
210 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CONNECTCODE, | |
211 | &slot->results->http_connectcode); | |
b90a3d7b JH |
212 | } |
213 | ||
214 | /* Run callback if appropriate */ | |
afe8a907 | 215 | if (slot->callback_func) |
b90a3d7b JH |
216 | slot->callback_func(slot->callback_data); |
217 | } | |
218 | ||
d8b6b84d EW |
219 | static void xmulti_remove_handle(struct active_request_slot *slot) |
220 | { | |
d8b6b84d | 221 | curl_multi_remove_handle(curlm, slot->curl); |
d8b6b84d EW |
222 | } |
223 | ||
29508e1e NH |
224 | static void process_curl_messages(void) |
225 | { | |
226 | int num_messages; | |
227 | struct active_request_slot *slot; | |
228 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
229 | ||
230 | while (curl_message != NULL) { | |
231 | if (curl_message->msg == CURLMSG_DONE) { | |
232 | int curl_result = curl_message->data.result; | |
233 | slot = active_queue_head; | |
234 | while (slot != NULL && | |
235 | slot->curl != curl_message->easy_handle) | |
236 | slot = slot->next; | |
afe8a907 | 237 | if (slot) { |
d8b6b84d | 238 | xmulti_remove_handle(slot); |
29508e1e NH |
239 | slot->curl_result = curl_result; |
240 | finish_active_slot(slot); | |
241 | } else { | |
242 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
243 | } | |
244 | } else { | |
245 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
246 | (int)curl_message->msg); | |
247 | } | |
248 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
249 | } | |
250 | } | |
29508e1e | 251 | |
ef90d6d4 | 252 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e | 253 | { |
d73019fe FC |
254 | if (!strcmp("http.version", var)) { |
255 | return git_config_string(&curl_http_version, var, value); | |
256 | } | |
29508e1e | 257 | if (!strcmp("http.sslverify", var)) { |
7059cd99 | 258 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
259 | return 0; |
260 | } | |
f6f2a9e4 LKS |
261 | if (!strcmp("http.sslcipherlist", var)) |
262 | return git_config_string(&ssl_cipherlist, var, value); | |
01861cb7 EP |
263 | if (!strcmp("http.sslversion", var)) |
264 | return git_config_string(&ssl_version, var, value); | |
7059cd99 | 265 | if (!strcmp("http.sslcert", var)) |
8d154964 | 266 | return git_config_pathname(&ssl_cert, var, value); |
7059cd99 | 267 | if (!strcmp("http.sslkey", var)) |
8d154964 | 268 | return git_config_pathname(&ssl_key, var, value); |
7059cd99 | 269 | if (!strcmp("http.sslcapath", var)) |
bf9acba2 | 270 | return git_config_pathname(&ssl_capath, var, value); |
7059cd99 | 271 | if (!strcmp("http.sslcainfo", var)) |
bf9acba2 | 272 | return git_config_pathname(&ssl_cainfo, var, value); |
754ae192 | 273 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
3f4ccd2b | 274 | ssl_cert_password_required = git_config_bool(var, value); |
754ae192 ML |
275 | return 0; |
276 | } | |
4bc444eb MV |
277 | if (!strcmp("http.ssltry", var)) { |
278 | curl_ssl_try = git_config_bool(var, value); | |
279 | return 0; | |
280 | } | |
21084e84 JS |
281 | if (!strcmp("http.sslbackend", var)) { |
282 | free(http_ssl_backend); | |
283 | http_ssl_backend = xstrdup_or_null(value); | |
284 | return 0; | |
285 | } | |
286 | ||
93aef7c7 BF |
287 | if (!strcmp("http.schannelcheckrevoke", var)) { |
288 | http_schannel_check_revoke = git_config_bool(var, value); | |
289 | return 0; | |
290 | } | |
291 | ||
b67d40ad JS |
292 | if (!strcmp("http.schannelusesslcainfo", var)) { |
293 | http_schannel_use_ssl_cainfo = git_config_bool(var, value); | |
294 | return 0; | |
295 | } | |
296 | ||
ad75ebe5 TRC |
297 | if (!strcmp("http.minsessions", var)) { |
298 | min_curl_sessions = git_config_int(var, value); | |
ad75ebe5 TRC |
299 | if (min_curl_sessions > 1) |
300 | min_curl_sessions = 1; | |
ad75ebe5 TRC |
301 | return 0; |
302 | } | |
29508e1e | 303 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 304 | max_requests = git_config_int(var, value); |
29508e1e NH |
305 | return 0; |
306 | } | |
29508e1e | 307 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 308 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
309 | return 0; |
310 | } | |
311 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 312 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
313 | return 0; |
314 | } | |
315 | ||
3ea099d4 SK |
316 | if (!strcmp("http.noepsv", var)) { |
317 | curl_ftp_no_epsv = git_config_bool(var, value); | |
318 | return 0; | |
319 | } | |
7059cd99 JH |
320 | if (!strcmp("http.proxy", var)) |
321 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 322 | |
ef976395 KF |
323 | if (!strcmp("http.proxyauthmethod", var)) |
324 | return git_config_string(&http_proxy_authmethod, var, value); | |
325 | ||
88238e02 JLS |
326 | if (!strcmp("http.proxysslcert", var)) |
327 | return git_config_string(&http_proxy_ssl_cert, var, value); | |
328 | ||
329 | if (!strcmp("http.proxysslkey", var)) | |
330 | return git_config_string(&http_proxy_ssl_key, var, value); | |
331 | ||
332 | if (!strcmp("http.proxysslcainfo", var)) | |
333 | return git_config_string(&http_proxy_ssl_ca_info, var, value); | |
334 | ||
335 | if (!strcmp("http.proxysslcertpasswordprotected", var)) { | |
336 | proxy_ssl_cert_password_required = git_config_bool(var, value); | |
337 | return 0; | |
338 | } | |
339 | ||
bcfb95dd | 340 | if (!strcmp("http.cookiefile", var)) |
e5a39ad8 | 341 | return git_config_pathname(&curl_cookie_file, var, value); |
912b2acf DB |
342 | if (!strcmp("http.savecookies", var)) { |
343 | curl_save_cookies = git_config_bool(var, value); | |
344 | return 0; | |
345 | } | |
bcfb95dd | 346 | |
de1a2fdd | 347 | if (!strcmp("http.postbuffer", var)) { |
37ee680d DT |
348 | http_post_buffer = git_config_ssize_t(var, value); |
349 | if (http_post_buffer < 0) | |
b4eda05d | 350 | warning(_("negative value for http.postBuffer; defaulting to %d"), LARGE_PACKET_MAX); |
de1a2fdd SP |
351 | if (http_post_buffer < LARGE_PACKET_MAX) |
352 | http_post_buffer = LARGE_PACKET_MAX; | |
353 | return 0; | |
354 | } | |
355 | ||
b1d1058c SO |
356 | if (!strcmp("http.useragent", var)) |
357 | return git_config_string(&user_agent, var, value); | |
358 | ||
121061f6 | 359 | if (!strcmp("http.emptyauth", var)) { |
40a18fc7 JK |
360 | if (value && !strcmp("auto", value)) |
361 | curl_empty_auth = -1; | |
362 | else | |
363 | curl_empty_auth = git_config_bool(var, value); | |
121061f6 | 364 | return 0; |
365 | } | |
366 | ||
26a7b234 | 367 | if (!strcmp("http.delegation", var)) { |
dd5df538 | 368 | #ifdef CURLGSSAPI_DELEGATION_FLAG |
26a7b234 PS |
369 | return git_config_string(&curl_deleg, var, value); |
370 | #else | |
371 | warning(_("Delegation control is not supported with cURL < 7.22.0")); | |
372 | return 0; | |
373 | #endif | |
374 | } | |
375 | ||
aeff8a61 | 376 | if (!strcmp("http.pinnedpubkey", var)) { |
e4ff3b67 | 377 | #ifdef GIT_CURL_HAVE_CURLOPT_PINNEDPUBLICKEY |
aeff8a61 CE |
378 | return git_config_pathname(&ssl_pinnedkey, var, value); |
379 | #else | |
905a0288 | 380 | warning(_("Public key pinning not supported with cURL < 7.39.0")); |
aeff8a61 CE |
381 | return 0; |
382 | #endif | |
383 | } | |
e79112d2 | 384 | |
8cb01e2f JS |
385 | if (!strcmp("http.extraheader", var)) { |
386 | if (!value) { | |
387 | return config_error_nonbool(var); | |
388 | } else if (!*value) { | |
4d17fd25 | 389 | string_list_clear(&extra_http_headers, 0); |
8cb01e2f | 390 | } else { |
4d17fd25 | 391 | string_list_append(&extra_http_headers, value); |
8cb01e2f JS |
392 | } |
393 | return 0; | |
394 | } | |
395 | ||
511cfd3b CC |
396 | if (!strcmp("http.curloptresolve", var)) { |
397 | if (!value) { | |
398 | return config_error_nonbool(var); | |
399 | } else if (!*value) { | |
400 | curl_slist_free_all(host_resolutions); | |
401 | host_resolutions = NULL; | |
402 | } else { | |
403 | host_resolutions = curl_slist_append(host_resolutions, value); | |
404 | } | |
405 | return 0; | |
406 | } | |
407 | ||
50d34137 JK |
408 | if (!strcmp("http.followredirects", var)) { |
409 | if (value && !strcmp(value, "initial")) | |
410 | http_follow_config = HTTP_FOLLOW_INITIAL; | |
411 | else if (git_config_bool(var, value)) | |
412 | http_follow_config = HTTP_FOLLOW_ALWAYS; | |
413 | else | |
414 | http_follow_config = HTTP_FOLLOW_NONE; | |
415 | return 0; | |
416 | } | |
417 | ||
29508e1e | 418 | /* Fall back on the default ones */ |
ef90d6d4 | 419 | return git_default_config(var, value, cb); |
29508e1e NH |
420 | } |
421 | ||
40a18fc7 JK |
422 | static int curl_empty_auth_enabled(void) |
423 | { | |
424 | if (curl_empty_auth >= 0) | |
425 | return curl_empty_auth; | |
426 | ||
40a18fc7 JK |
427 | /* |
428 | * In the automatic case, kick in the empty-auth | |
429 | * hack as long as we would potentially try some | |
430 | * method more exotic than "Basic" or "Digest". | |
431 | * | |
432 | * But only do this when this is our second or | |
433 | * subsequent request, as by then we know what | |
434 | * methods are available. | |
435 | */ | |
436 | if (http_auth_methods_restricted && | |
437 | (http_auth_methods & ~empty_auth_useless)) | |
438 | return 1; | |
40a18fc7 JK |
439 | return 0; |
440 | } | |
441 | ||
c33976cb JH |
442 | static void init_curl_http_auth(CURL *result) |
443 | { | |
5275c308 | 444 | if (!http_auth.username || !*http_auth.username) { |
40a18fc7 | 445 | if (curl_empty_auth_enabled()) |
121061f6 | 446 | curl_easy_setopt(result, CURLOPT_USERPWD, ":"); |
6f4c347c | 447 | return; |
121061f6 | 448 | } |
6f4c347c JK |
449 | |
450 | credential_fill(&http_auth); | |
451 | ||
6f4c347c JK |
452 | curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username); |
453 | curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password); | |
c33976cb JH |
454 | } |
455 | ||
ef976395 KF |
456 | /* *var must be free-able */ |
457 | static void var_override(const char **var, char *value) | |
458 | { | |
459 | if (value) { | |
460 | free((void *)*var); | |
461 | *var = xstrdup(value); | |
462 | } | |
463 | } | |
464 | ||
372370f1 KF |
465 | static void set_proxyauth_name_password(CURL *result) |
466 | { | |
372370f1 KF |
467 | curl_easy_setopt(result, CURLOPT_PROXYUSERNAME, |
468 | proxy_auth.username); | |
469 | curl_easy_setopt(result, CURLOPT_PROXYPASSWORD, | |
470 | proxy_auth.password); | |
372370f1 KF |
471 | } |
472 | ||
ef976395 KF |
473 | static void init_curl_proxy_auth(CURL *result) |
474 | { | |
372370f1 KF |
475 | if (proxy_auth.username) { |
476 | if (!proxy_auth.password) | |
477 | credential_fill(&proxy_auth); | |
478 | set_proxyauth_name_password(result); | |
479 | } | |
480 | ||
ef976395 KF |
481 | var_override(&http_proxy_authmethod, getenv("GIT_HTTP_PROXY_AUTHMETHOD")); |
482 | ||
ef976395 KF |
483 | if (http_proxy_authmethod) { |
484 | int i; | |
485 | for (i = 0; i < ARRAY_SIZE(proxy_authmethods); i++) { | |
486 | if (!strcmp(http_proxy_authmethod, proxy_authmethods[i].name)) { | |
487 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, | |
488 | proxy_authmethods[i].curlauth_param); | |
489 | break; | |
490 | } | |
491 | } | |
492 | if (i == ARRAY_SIZE(proxy_authmethods)) { | |
493 | warning("unsupported proxy authentication method %s: using anyauth", | |
494 | http_proxy_authmethod); | |
495 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); | |
496 | } | |
497 | } | |
498 | else | |
499 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); | |
ef976395 KF |
500 | } |
501 | ||
30dd9163 ML |
502 | static int has_cert_password(void) |
503 | { | |
30dd9163 ML |
504 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
505 | return 0; | |
148bb6a7 JK |
506 | if (!cert_auth.password) { |
507 | cert_auth.protocol = xstrdup("cert"); | |
24036686 | 508 | cert_auth.host = xstrdup(""); |
75e9a405 | 509 | cert_auth.username = xstrdup(""); |
148bb6a7 JK |
510 | cert_auth.path = xstrdup(ssl_cert); |
511 | credential_fill(&cert_auth); | |
512 | } | |
513 | return 1; | |
30dd9163 ML |
514 | } |
515 | ||
e4ff3b67 | 516 | #ifdef GIT_CURL_HAVE_CURLOPT_PROXY_KEYPASSWD |
88238e02 JLS |
517 | static int has_proxy_cert_password(void) |
518 | { | |
519 | if (http_proxy_ssl_cert == NULL || proxy_ssl_cert_password_required != 1) | |
520 | return 0; | |
521 | if (!proxy_cert_auth.password) { | |
522 | proxy_cert_auth.protocol = xstrdup("cert"); | |
048abe17 | 523 | proxy_cert_auth.host = xstrdup(""); |
88238e02 JLS |
524 | proxy_cert_auth.username = xstrdup(""); |
525 | proxy_cert_auth.path = xstrdup(http_proxy_ssl_cert); | |
526 | credential_fill(&proxy_cert_auth); | |
527 | } | |
528 | return 1; | |
529 | } | |
530 | #endif | |
531 | ||
e4ff3b67 | 532 | #ifdef GITCURL_HAVE_CURLOPT_TCP_KEEPALIVE |
47ce1153 JK |
533 | static void set_curl_keepalive(CURL *c) |
534 | { | |
535 | curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1); | |
536 | } | |
537 | ||
013c7e2b | 538 | #else |
a15d069a EW |
539 | static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type) |
540 | { | |
541 | int ka = 1; | |
542 | int rc; | |
543 | socklen_t len = (socklen_t)sizeof(ka); | |
544 | ||
545 | if (type != CURLSOCKTYPE_IPCXN) | |
546 | return 0; | |
547 | ||
548 | rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len); | |
549 | if (rc < 0) | |
d2e255ee | 550 | warning_errno("unable to set SO_KEEPALIVE on socket"); |
a15d069a | 551 | |
32da6e6d | 552 | return CURL_SOCKOPT_OK; |
a15d069a EW |
553 | } |
554 | ||
47ce1153 JK |
555 | static void set_curl_keepalive(CURL *c) |
556 | { | |
557 | curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback); | |
558 | } | |
47ce1153 JK |
559 | #endif |
560 | ||
b637a41e GC |
561 | /* Return 1 if redactions have been made, 0 otherwise. */ |
562 | static int redact_sensitive_header(struct strbuf *header, size_t offset) | |
74c682d3 | 563 | { |
b637a41e | 564 | int ret = 0; |
74c682d3 EP |
565 | const char *sensitive_header; |
566 | ||
827e7d4d | 567 | if (trace_curl_redact && |
b637a41e GC |
568 | (skip_iprefix(header->buf + offset, "Authorization:", &sensitive_header) || |
569 | skip_iprefix(header->buf + offset, "Proxy-Authorization:", &sensitive_header))) { | |
74c682d3 EP |
570 | /* The first token is the type, which is OK to log */ |
571 | while (isspace(*sensitive_header)) | |
572 | sensitive_header++; | |
573 | while (*sensitive_header && !isspace(*sensitive_header)) | |
574 | sensitive_header++; | |
575 | /* Everything else is opaque and possibly sensitive */ | |
576 | strbuf_setlen(header, sensitive_header - header->buf); | |
577 | strbuf_addstr(header, " <redacted>"); | |
b637a41e | 578 | ret = 1; |
827e7d4d | 579 | } else if (trace_curl_redact && |
b637a41e | 580 | skip_iprefix(header->buf + offset, "Cookie:", &sensitive_header)) { |
83411783 | 581 | struct strbuf redacted_header = STRBUF_INIT; |
827e7d4d | 582 | const char *cookie; |
83411783 JT |
583 | |
584 | while (isspace(*sensitive_header)) | |
585 | sensitive_header++; | |
586 | ||
827e7d4d | 587 | cookie = sensitive_header; |
83411783 JT |
588 | |
589 | while (cookie) { | |
590 | char *equals; | |
591 | char *semicolon = strstr(cookie, "; "); | |
592 | if (semicolon) | |
593 | *semicolon = 0; | |
594 | equals = strchrnul(cookie, '='); | |
595 | if (!equals) { | |
596 | /* invalid cookie, just append and continue */ | |
597 | strbuf_addstr(&redacted_header, cookie); | |
598 | continue; | |
599 | } | |
827e7d4d JT |
600 | strbuf_add(&redacted_header, cookie, equals - cookie); |
601 | strbuf_addstr(&redacted_header, "=<redacted>"); | |
83411783 JT |
602 | if (semicolon) { |
603 | /* | |
604 | * There are more cookies. (Or, for some | |
605 | * reason, the input string ends in "; ".) | |
606 | */ | |
607 | strbuf_addstr(&redacted_header, "; "); | |
608 | cookie = semicolon + strlen("; "); | |
609 | } else { | |
610 | cookie = NULL; | |
611 | } | |
612 | } | |
613 | ||
614 | strbuf_setlen(header, sensitive_header - header->buf); | |
615 | strbuf_addbuf(header, &redacted_header); | |
b637a41e GC |
616 | ret = 1; |
617 | } | |
618 | return ret; | |
619 | } | |
620 | ||
621 | /* Redact headers in info */ | |
622 | static void redact_sensitive_info_header(struct strbuf *header) | |
623 | { | |
624 | const char *sensitive_header; | |
625 | ||
626 | /* | |
627 | * curl's h2h3 prints headers in info, e.g.: | |
628 | * h2h3 [<header-name>: <header-val>] | |
629 | */ | |
630 | if (trace_curl_redact && | |
631 | skip_iprefix(header->buf, "h2h3 [", &sensitive_header)) { | |
632 | if (redact_sensitive_header(header, sensitive_header - header->buf)) { | |
633 | /* redaction ate our closing bracket */ | |
634 | strbuf_addch(header, ']'); | |
635 | } | |
74c682d3 EP |
636 | } |
637 | } | |
638 | ||
639 | static void curl_dump_header(const char *text, unsigned char *ptr, size_t size, int hide_sensitive_header) | |
640 | { | |
641 | struct strbuf out = STRBUF_INIT; | |
642 | struct strbuf **headers, **header; | |
643 | ||
644 | strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n", | |
645 | text, (long)size, (long)size); | |
646 | trace_strbuf(&trace_curl, &out); | |
647 | strbuf_reset(&out); | |
648 | strbuf_add(&out, ptr, size); | |
649 | headers = strbuf_split_max(&out, '\n', 0); | |
650 | ||
651 | for (header = headers; *header; header++) { | |
652 | if (hide_sensitive_header) | |
b637a41e | 653 | redact_sensitive_header(*header, 0); |
a91cc7fa RS |
654 | strbuf_insertstr((*header), 0, text); |
655 | strbuf_insertstr((*header), strlen(text), ": "); | |
74c682d3 EP |
656 | strbuf_rtrim((*header)); |
657 | strbuf_addch((*header), '\n'); | |
658 | trace_strbuf(&trace_curl, (*header)); | |
659 | } | |
660 | strbuf_list_free(headers); | |
661 | strbuf_release(&out); | |
662 | } | |
663 | ||
664 | static void curl_dump_data(const char *text, unsigned char *ptr, size_t size) | |
665 | { | |
666 | size_t i; | |
667 | struct strbuf out = STRBUF_INIT; | |
668 | unsigned int width = 60; | |
669 | ||
670 | strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n", | |
671 | text, (long)size, (long)size); | |
672 | trace_strbuf(&trace_curl, &out); | |
673 | ||
674 | for (i = 0; i < size; i += width) { | |
675 | size_t w; | |
676 | ||
677 | strbuf_reset(&out); | |
678 | strbuf_addf(&out, "%s: ", text); | |
679 | for (w = 0; (w < width) && (i + w < size); w++) { | |
680 | unsigned char ch = ptr[i + w]; | |
681 | ||
682 | strbuf_addch(&out, | |
683 | (ch >= 0x20) && (ch < 0x80) | |
684 | ? ch : '.'); | |
685 | } | |
686 | strbuf_addch(&out, '\n'); | |
687 | trace_strbuf(&trace_curl, &out); | |
688 | } | |
689 | strbuf_release(&out); | |
690 | } | |
691 | ||
b637a41e GC |
692 | static void curl_dump_info(char *data, size_t size) |
693 | { | |
694 | struct strbuf buf = STRBUF_INIT; | |
695 | ||
696 | strbuf_add(&buf, data, size); | |
697 | ||
698 | redact_sensitive_info_header(&buf); | |
699 | trace_printf_key(&trace_curl, "== Info: %s", buf.buf); | |
700 | ||
701 | strbuf_release(&buf); | |
702 | } | |
703 | ||
74c682d3 EP |
704 | static int curl_trace(CURL *handle, curl_infotype type, char *data, size_t size, void *userp) |
705 | { | |
706 | const char *text; | |
707 | enum { NO_FILTER = 0, DO_FILTER = 1 }; | |
708 | ||
709 | switch (type) { | |
710 | case CURLINFO_TEXT: | |
b637a41e | 711 | curl_dump_info(data, size); |
d0e99839 | 712 | break; |
74c682d3 EP |
713 | case CURLINFO_HEADER_OUT: |
714 | text = "=> Send header"; | |
715 | curl_dump_header(text, (unsigned char *)data, size, DO_FILTER); | |
716 | break; | |
717 | case CURLINFO_DATA_OUT: | |
8ba18e6f JT |
718 | if (trace_curl_data) { |
719 | text = "=> Send data"; | |
720 | curl_dump_data(text, (unsigned char *)data, size); | |
721 | } | |
74c682d3 EP |
722 | break; |
723 | case CURLINFO_SSL_DATA_OUT: | |
8ba18e6f JT |
724 | if (trace_curl_data) { |
725 | text = "=> Send SSL data"; | |
726 | curl_dump_data(text, (unsigned char *)data, size); | |
727 | } | |
74c682d3 EP |
728 | break; |
729 | case CURLINFO_HEADER_IN: | |
730 | text = "<= Recv header"; | |
731 | curl_dump_header(text, (unsigned char *)data, size, NO_FILTER); | |
732 | break; | |
733 | case CURLINFO_DATA_IN: | |
8ba18e6f JT |
734 | if (trace_curl_data) { |
735 | text = "<= Recv data"; | |
736 | curl_dump_data(text, (unsigned char *)data, size); | |
737 | } | |
74c682d3 EP |
738 | break; |
739 | case CURLINFO_SSL_DATA_IN: | |
8ba18e6f JT |
740 | if (trace_curl_data) { |
741 | text = "<= Recv SSL data"; | |
742 | curl_dump_data(text, (unsigned char *)data, size); | |
743 | } | |
74c682d3 | 744 | break; |
d0e99839 JK |
745 | |
746 | default: /* we ignore unknown types by default */ | |
747 | return 0; | |
74c682d3 EP |
748 | } |
749 | return 0; | |
750 | } | |
751 | ||
7167a62b JT |
752 | void http_trace_curl_no_data(void) |
753 | { | |
754 | trace_override_envvar(&trace_curl, "1"); | |
755 | trace_curl_data = 0; | |
756 | } | |
757 | ||
74c682d3 EP |
758 | void setup_curl_trace(CURL *handle) |
759 | { | |
760 | if (!trace_want(&trace_curl)) | |
761 | return; | |
762 | curl_easy_setopt(handle, CURLOPT_VERBOSE, 1L); | |
763 | curl_easy_setopt(handle, CURLOPT_DEBUGFUNCTION, curl_trace); | |
764 | curl_easy_setopt(handle, CURLOPT_DEBUGDATA, NULL); | |
765 | } | |
766 | ||
f44e6a21 | 767 | static void proto_list_append(struct strbuf *list, const char *proto) |
aeae4db1 | 768 | { |
f44e6a21 JK |
769 | if (!list) |
770 | return; | |
771 | if (list->len) | |
772 | strbuf_addch(list, ','); | |
773 | strbuf_addstr(list, proto); | |
774 | } | |
775 | ||
776 | static long get_curl_allowed_protocols(int from_user, struct strbuf *list) | |
aeae4db1 | 777 | { |
f44e6a21 JK |
778 | long bits = 0; |
779 | ||
780 | if (is_transport_allowed("http", from_user)) { | |
781 | bits |= CURLPROTO_HTTP; | |
782 | proto_list_append(list, "http"); | |
783 | } | |
784 | if (is_transport_allowed("https", from_user)) { | |
785 | bits |= CURLPROTO_HTTPS; | |
786 | proto_list_append(list, "https"); | |
787 | } | |
788 | if (is_transport_allowed("ftp", from_user)) { | |
789 | bits |= CURLPROTO_FTP; | |
790 | proto_list_append(list, "ftp"); | |
791 | } | |
792 | if (is_transport_allowed("ftps", from_user)) { | |
793 | bits |= CURLPROTO_FTPS; | |
794 | proto_list_append(list, "ftps"); | |
795 | } | |
796 | ||
797 | return bits; | |
aeae4db1 | 798 | } |
74c682d3 | 799 | |
e4ff3b67 | 800 | #ifdef GIT_CURL_HAVE_CURL_HTTP_VERSION_2 |
d73019fe FC |
801 | static int get_curl_http_version_opt(const char *version_string, long *opt) |
802 | { | |
803 | int i; | |
804 | static struct { | |
805 | const char *name; | |
806 | long opt_token; | |
807 | } choice[] = { | |
808 | { "HTTP/1.1", CURL_HTTP_VERSION_1_1 }, | |
809 | { "HTTP/2", CURL_HTTP_VERSION_2 } | |
810 | }; | |
811 | ||
812 | for (i = 0; i < ARRAY_SIZE(choice); i++) { | |
813 | if (!strcmp(version_string, choice[i].name)) { | |
814 | *opt = choice[i].opt_token; | |
815 | return 0; | |
816 | } | |
817 | } | |
818 | ||
819 | warning("unknown value given to http.version: '%s'", version_string); | |
820 | return -1; /* not found */ | |
821 | } | |
822 | ||
823 | #endif | |
824 | ||
4251ccbd | 825 | static CURL *get_curl_handle(void) |
11979b98 | 826 | { |
4251ccbd | 827 | CURL *result = curl_easy_init(); |
11979b98 | 828 | |
faa3807c BR |
829 | if (!result) |
830 | die("curl_easy_init failed"); | |
831 | ||
a5ccc597 JH |
832 | if (!curl_ssl_verify) { |
833 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
834 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
835 | } else { | |
836 | /* Verify authenticity of the peer's certificate */ | |
837 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
838 | /* The name in the cert must match whom we tried to connect */ | |
839 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
840 | } | |
841 | ||
e4ff3b67 | 842 | #ifdef GIT_CURL_HAVE_CURL_HTTP_VERSION_2 |
d73019fe FC |
843 | if (curl_http_version) { |
844 | long opt; | |
845 | if (!get_curl_http_version_opt(curl_http_version, &opt)) { | |
846 | /* Set request use http version */ | |
847 | curl_easy_setopt(result, CURLOPT_HTTP_VERSION, opt); | |
848 | } | |
849 | } | |
850 | #endif | |
851 | ||
11979b98 | 852 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); |
525ecd26 | 853 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
11979b98 | 854 | |
dd5df538 | 855 | #ifdef CURLGSSAPI_DELEGATION_FLAG |
26a7b234 PS |
856 | if (curl_deleg) { |
857 | int i; | |
858 | for (i = 0; i < ARRAY_SIZE(curl_deleg_levels); i++) { | |
859 | if (!strcmp(curl_deleg, curl_deleg_levels[i].name)) { | |
860 | curl_easy_setopt(result, CURLOPT_GSSAPI_DELEGATION, | |
861 | curl_deleg_levels[i].curl_deleg_param); | |
862 | break; | |
863 | } | |
864 | } | |
865 | if (i == ARRAY_SIZE(curl_deleg_levels)) | |
866 | warning("Unknown delegation method '%s': using default", | |
867 | curl_deleg); | |
868 | } | |
869 | #endif | |
870 | ||
93aef7c7 BF |
871 | if (http_ssl_backend && !strcmp("schannel", http_ssl_backend) && |
872 | !http_schannel_check_revoke) { | |
e4ff3b67 | 873 | #ifdef GIT_CURL_HAVE_CURLSSLOPT_NO_REVOKE |
93aef7c7 BF |
874 | curl_easy_setopt(result, CURLOPT_SSL_OPTIONS, CURLSSLOPT_NO_REVOKE); |
875 | #else | |
d355e46a | 876 | warning(_("CURLSSLOPT_NO_REVOKE not supported with cURL < 7.44.0")); |
93aef7c7 BF |
877 | #endif |
878 | } | |
879 | ||
a4ddbc33 JK |
880 | if (http_proactive_auth) |
881 | init_curl_http_auth(result); | |
882 | ||
01861cb7 EP |
883 | if (getenv("GIT_SSL_VERSION")) |
884 | ssl_version = getenv("GIT_SSL_VERSION"); | |
885 | if (ssl_version && *ssl_version) { | |
886 | int i; | |
887 | for (i = 0; i < ARRAY_SIZE(sslversions); i++) { | |
888 | if (!strcmp(ssl_version, sslversions[i].name)) { | |
889 | curl_easy_setopt(result, CURLOPT_SSLVERSION, | |
890 | sslversions[i].ssl_version); | |
891 | break; | |
892 | } | |
893 | } | |
894 | if (i == ARRAY_SIZE(sslversions)) | |
895 | warning("unsupported ssl version %s: using default", | |
896 | ssl_version); | |
897 | } | |
898 | ||
f6f2a9e4 LKS |
899 | if (getenv("GIT_SSL_CIPHER_LIST")) |
900 | ssl_cipherlist = getenv("GIT_SSL_CIPHER_LIST"); | |
f6f2a9e4 LKS |
901 | if (ssl_cipherlist != NULL && *ssl_cipherlist) |
902 | curl_easy_setopt(result, CURLOPT_SSL_CIPHER_LIST, | |
903 | ssl_cipherlist); | |
904 | ||
afe8a907 | 905 | if (ssl_cert) |
11979b98 | 906 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); |
30dd9163 | 907 | if (has_cert_password()) |
148bb6a7 | 908 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
afe8a907 | 909 | if (ssl_key) |
11979b98 | 910 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); |
afe8a907 | 911 | if (ssl_capath) |
11979b98 | 912 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); |
e4ff3b67 | 913 | #ifdef GIT_CURL_HAVE_CURLOPT_PINNEDPUBLICKEY |
afe8a907 | 914 | if (ssl_pinnedkey) |
aeff8a61 | 915 | curl_easy_setopt(result, CURLOPT_PINNEDPUBLICKEY, ssl_pinnedkey); |
11979b98 | 916 | #endif |
b67d40ad JS |
917 | if (http_ssl_backend && !strcmp("schannel", http_ssl_backend) && |
918 | !http_schannel_use_ssl_cainfo) { | |
919 | curl_easy_setopt(result, CURLOPT_CAINFO, NULL); | |
e4ff3b67 | 920 | #ifdef GIT_CURL_HAVE_CURLOPT_PROXY_CAINFO |
b67d40ad JS |
921 | curl_easy_setopt(result, CURLOPT_PROXY_CAINFO, NULL); |
922 | #endif | |
88238e02 | 923 | } else if (ssl_cainfo != NULL || http_proxy_ssl_ca_info != NULL) { |
afe8a907 | 924 | if (ssl_cainfo) |
88238e02 | 925 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); |
e4ff3b67 | 926 | #ifdef GIT_CURL_HAVE_CURLOPT_PROXY_CAINFO |
afe8a907 | 927 | if (http_proxy_ssl_ca_info) |
88238e02 JLS |
928 | curl_easy_setopt(result, CURLOPT_PROXY_CAINFO, http_proxy_ssl_ca_info); |
929 | #endif | |
930 | } | |
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 | 940 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); |
f44e6a21 JK |
941 | |
942 | #ifdef GIT_CURL_HAVE_CURLOPT_PROTOCOLS_STR | |
943 | { | |
944 | struct strbuf buf = STRBUF_INIT; | |
945 | ||
946 | get_curl_allowed_protocols(0, &buf); | |
947 | curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS_STR, buf.buf); | |
948 | strbuf_reset(&buf); | |
949 | ||
950 | get_curl_allowed_protocols(-1, &buf); | |
951 | curl_easy_setopt(result, CURLOPT_PROTOCOLS_STR, buf.buf); | |
952 | strbuf_release(&buf); | |
953 | } | |
954 | #else | |
aeae4db1 | 955 | curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS, |
f44e6a21 | 956 | get_curl_allowed_protocols(0, NULL)); |
aeae4db1 | 957 | curl_easy_setopt(result, CURLOPT_PROTOCOLS, |
f44e6a21 JK |
958 | get_curl_allowed_protocols(-1, NULL)); |
959 | #endif | |
960 | ||
7982d74e | 961 | if (getenv("GIT_CURL_VERBOSE")) |
7167a62b | 962 | http_trace_curl_no_data(); |
74c682d3 | 963 | setup_curl_trace(result); |
8ba18e6f JT |
964 | if (getenv("GIT_TRACE_CURL_NO_DATA")) |
965 | trace_curl_data = 0; | |
827e7d4d JT |
966 | if (!git_env_bool("GIT_TRACE_REDACT", 1)) |
967 | trace_curl_redact = 0; | |
7982d74e | 968 | |
b1d1058c | 969 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
745c7c8e | 970 | user_agent ? user_agent : git_user_agent()); |
20fc9bc5 | 971 | |
3ea099d4 SK |
972 | if (curl_ftp_no_epsv) |
973 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
974 | ||
4bc444eb MV |
975 | if (curl_ssl_try) |
976 | curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY); | |
4bc444eb | 977 | |
372370f1 KF |
978 | /* |
979 | * CURL also examines these variables as a fallback; but we need to query | |
980 | * them here in order to decide whether to prompt for missing password (cf. | |
981 | * init_curl_proxy_auth()). | |
982 | * | |
983 | * Unlike many other common environment variables, these are historically | |
984 | * lowercase only. It appears that CURL did not know this and implemented | |
985 | * only uppercase variants, which was later corrected to take both - with | |
986 | * the exception of http_proxy, which is lowercase only also in CURL. As | |
987 | * the lowercase versions are the historical quasi-standard, they take | |
988 | * precedence here, as in CURL. | |
989 | */ | |
990 | if (!curl_http_proxy) { | |
d63ed6ef | 991 | if (http_auth.protocol && !strcmp(http_auth.protocol, "https")) { |
372370f1 KF |
992 | var_override(&curl_http_proxy, getenv("HTTPS_PROXY")); |
993 | var_override(&curl_http_proxy, getenv("https_proxy")); | |
994 | } else { | |
995 | var_override(&curl_http_proxy, getenv("http_proxy")); | |
996 | } | |
997 | if (!curl_http_proxy) { | |
998 | var_override(&curl_http_proxy, getenv("ALL_PROXY")); | |
999 | var_override(&curl_http_proxy, getenv("all_proxy")); | |
1000 | } | |
1001 | } | |
1002 | ||
57415089 SR |
1003 | if (curl_http_proxy && curl_http_proxy[0] == '\0') { |
1004 | /* | |
1005 | * Handle case with the empty http.proxy value here to keep | |
1006 | * common code clean. | |
1007 | * NB: empty option disables proxying at all. | |
1008 | */ | |
1009 | curl_easy_setopt(result, CURLOPT_PROXY, ""); | |
1010 | } else if (curl_http_proxy) { | |
87f8a0b2 JH |
1011 | if (starts_with(curl_http_proxy, "socks5h")) |
1012 | curl_easy_setopt(result, | |
1013 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5_HOSTNAME); | |
1014 | else if (starts_with(curl_http_proxy, "socks5")) | |
6d7afe07 PT |
1015 | curl_easy_setopt(result, |
1016 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5); | |
1017 | else if (starts_with(curl_http_proxy, "socks4a")) | |
1018 | curl_easy_setopt(result, | |
1019 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4A); | |
1020 | else if (starts_with(curl_http_proxy, "socks")) | |
1021 | curl_easy_setopt(result, | |
1022 | CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4); | |
e4ff3b67 | 1023 | #ifdef GIT_CURL_HAVE_CURLOPT_PROXY_KEYPASSWD |
88238e02 JLS |
1024 | else if (starts_with(curl_http_proxy, "https")) { |
1025 | curl_easy_setopt(result, CURLOPT_PROXYTYPE, CURLPROXY_HTTPS); | |
1026 | ||
1027 | if (http_proxy_ssl_cert) | |
1028 | curl_easy_setopt(result, CURLOPT_PROXY_SSLCERT, http_proxy_ssl_cert); | |
1029 | ||
1030 | if (http_proxy_ssl_key) | |
1031 | curl_easy_setopt(result, CURLOPT_PROXY_SSLKEY, http_proxy_ssl_key); | |
1032 | ||
1033 | if (has_proxy_cert_password()) | |
1034 | curl_easy_setopt(result, CURLOPT_PROXY_KEYPASSWD, proxy_cert_auth.password); | |
1035 | } | |
6d7afe07 | 1036 | #endif |
372370f1 KF |
1037 | if (strstr(curl_http_proxy, "://")) |
1038 | credential_from_url(&proxy_auth, curl_http_proxy); | |
1039 | else { | |
1040 | struct strbuf url = STRBUF_INIT; | |
1041 | strbuf_addf(&url, "http://%s", curl_http_proxy); | |
1042 | credential_from_url(&proxy_auth, url.buf); | |
1043 | strbuf_release(&url); | |
1044 | } | |
1045 | ||
ae51d911 SR |
1046 | if (!proxy_auth.host) |
1047 | die("Invalid proxy URL '%s'", curl_http_proxy); | |
1048 | ||
372370f1 | 1049 | curl_easy_setopt(result, CURLOPT_PROXY, proxy_auth.host); |
d445fda4 JX |
1050 | var_override(&curl_no_proxy, getenv("NO_PROXY")); |
1051 | var_override(&curl_no_proxy, getenv("no_proxy")); | |
1052 | curl_easy_setopt(result, CURLOPT_NOPROXY, curl_no_proxy); | |
5841520b | 1053 | } |
ef976395 | 1054 | init_curl_proxy_auth(result); |
9c5665aa | 1055 | |
47ce1153 | 1056 | set_curl_keepalive(result); |
a15d069a | 1057 | |
11979b98 JH |
1058 | return result; |
1059 | } | |
1060 | ||
7059cd99 JH |
1061 | static void set_from_env(const char **var, const char *envname) |
1062 | { | |
1063 | const char *val = getenv(envname); | |
1064 | if (val) | |
1065 | *var = val; | |
1066 | } | |
1067 | ||
a4ddbc33 | 1068 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
1069 | { |
1070 | char *low_speed_limit; | |
1071 | char *low_speed_time; | |
6a56993b | 1072 | char *normalized_url; |
73ee449b | 1073 | struct urlmatch_config config = URLMATCH_CONFIG_INIT; |
6a56993b KM |
1074 | |
1075 | config.section = "http"; | |
1076 | config.key = NULL; | |
1077 | config.collect_fn = http_options; | |
1078 | config.cascade_fn = git_default_config; | |
1079 | config.cb = NULL; | |
29508e1e | 1080 | |
e9176745 | 1081 | http_is_verbose = 0; |
6a56993b | 1082 | normalized_url = url_normalize(url, &config.url); |
e9176745 | 1083 | |
6a56993b KM |
1084 | git_config(urlmatch_config_entry, &config); |
1085 | free(normalized_url); | |
7e927567 | 1086 | string_list_clear(&config.vars, 1); |
7059cd99 | 1087 | |
e4ff3b67 | 1088 | #ifdef GIT_CURL_HAVE_CURLSSLSET_NO_BACKENDS |
21084e84 JS |
1089 | if (http_ssl_backend) { |
1090 | const curl_ssl_backend **backends; | |
1091 | struct strbuf buf = STRBUF_INIT; | |
1092 | int i; | |
1093 | ||
1094 | switch (curl_global_sslset(-1, http_ssl_backend, &backends)) { | |
1095 | case CURLSSLSET_UNKNOWN_BACKEND: | |
1096 | strbuf_addf(&buf, _("Unsupported SSL backend '%s'. " | |
1097 | "Supported SSL backends:"), | |
1098 | http_ssl_backend); | |
1099 | for (i = 0; backends[i]; i++) | |
1100 | strbuf_addf(&buf, "\n\t%s", backends[i]->name); | |
1101 | die("%s", buf.buf); | |
1102 | case CURLSSLSET_NO_BACKENDS: | |
1103 | die(_("Could not set SSL backend to '%s': " | |
1104 | "cURL was built without SSL backends"), | |
1105 | http_ssl_backend); | |
1106 | case CURLSSLSET_TOO_LATE: | |
1107 | die(_("Could not set SSL backend to '%s': already set"), | |
1108 | http_ssl_backend); | |
1109 | case CURLSSLSET_OK: | |
1110 | break; /* Okay! */ | |
1111 | } | |
1112 | } | |
1113 | #endif | |
1114 | ||
faa3807c BR |
1115 | if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) |
1116 | die("curl_global_init failed"); | |
29508e1e | 1117 | |
a4ddbc33 JK |
1118 | http_proactive_auth = proactive_auth; |
1119 | ||
9fc6440d MH |
1120 | if (remote && remote->http_proxy) |
1121 | curl_http_proxy = xstrdup(remote->http_proxy); | |
1122 | ||
ef976395 KF |
1123 | if (remote) |
1124 | var_override(&http_proxy_authmethod, remote->http_proxy_authmethod); | |
1125 | ||
8cb01e2f JS |
1126 | pragma_header = curl_slist_append(http_copy_default_headers(), |
1127 | "Pragma: no-cache"); | |
1128 | no_pragma_header = curl_slist_append(http_copy_default_headers(), | |
1129 | "Pragma:"); | |
29508e1e | 1130 | |
29508e1e NH |
1131 | { |
1132 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
afe8a907 | 1133 | if (http_max_requests) |
29508e1e NH |
1134 | max_requests = atoi(http_max_requests); |
1135 | } | |
1136 | ||
1137 | curlm = curl_multi_init(); | |
8837eb47 JK |
1138 | if (!curlm) |
1139 | die("curl_multi_init failed"); | |
29508e1e NH |
1140 | |
1141 | if (getenv("GIT_SSL_NO_VERIFY")) | |
1142 | curl_ssl_verify = 0; | |
1143 | ||
7059cd99 | 1144 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
7059cd99 | 1145 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
7059cd99 | 1146 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
7059cd99 | 1147 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 1148 | |
b1d1058c SO |
1149 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
1150 | ||
29508e1e | 1151 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
afe8a907 | 1152 | if (low_speed_limit) |
29508e1e NH |
1153 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); |
1154 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
afe8a907 | 1155 | if (low_speed_time) |
29508e1e NH |
1156 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); |
1157 | ||
29508e1e NH |
1158 | if (curl_ssl_verify == -1) |
1159 | curl_ssl_verify = 1; | |
1160 | ||
ad75ebe5 | 1161 | curl_session_count = 0; |
29508e1e NH |
1162 | if (max_requests < 1) |
1163 | max_requests = DEFAULT_MAX_REQUESTS; | |
29508e1e | 1164 | |
af026519 JLS |
1165 | set_from_env(&http_proxy_ssl_cert, "GIT_PROXY_SSL_CERT"); |
1166 | set_from_env(&http_proxy_ssl_key, "GIT_PROXY_SSL_KEY"); | |
1167 | set_from_env(&http_proxy_ssl_ca_info, "GIT_PROXY_SSL_CAINFO"); | |
1168 | ||
1169 | if (getenv("GIT_PROXY_SSL_CERT_PASSWORD_PROTECTED")) | |
1170 | proxy_ssl_cert_password_required = 1; | |
1171 | ||
3ea099d4 SK |
1172 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
1173 | curl_ftp_no_epsv = 1; | |
1174 | ||
deba4937 | 1175 | if (url) { |
148bb6a7 | 1176 | credential_from_url(&http_auth, url); |
754ae192 ML |
1177 | if (!ssl_cert_password_required && |
1178 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
59556548 | 1179 | starts_with(url, "https://")) |
30dd9163 ML |
1180 | ssl_cert_password_required = 1; |
1181 | } | |
c33976cb | 1182 | |
29508e1e | 1183 | curl_default = get_curl_handle(); |
29508e1e NH |
1184 | } |
1185 | ||
1186 | void http_cleanup(void) | |
1187 | { | |
1188 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
1189 | |
1190 | while (slot != NULL) { | |
3278cd0a | 1191 | struct active_request_slot *next = slot->next; |
afe8a907 | 1192 | if (slot->curl) { |
d8b6b84d | 1193 | xmulti_remove_handle(slot); |
29508e1e | 1194 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 1195 | } |
3278cd0a SP |
1196 | free(slot); |
1197 | slot = next; | |
29508e1e | 1198 | } |
3278cd0a | 1199 | active_queue_head = NULL; |
29508e1e | 1200 | |
29508e1e | 1201 | curl_easy_cleanup(curl_default); |
29508e1e | 1202 | |
29508e1e | 1203 | curl_multi_cleanup(curlm); |
29508e1e | 1204 | curl_global_cleanup(); |
b3ca4e4e | 1205 | |
4d17fd25 | 1206 | string_list_clear(&extra_http_headers, 0); |
8cb01e2f | 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 | ||
511cfd3b CC |
1214 | curl_slist_free_all(host_resolutions); |
1215 | host_resolutions = NULL; | |
1216 | ||
9fc6440d | 1217 | if (curl_http_proxy) { |
e4a80ecf | 1218 | free((void *)curl_http_proxy); |
9fc6440d MH |
1219 | curl_http_proxy = NULL; |
1220 | } | |
30dd9163 | 1221 | |
372370f1 KF |
1222 | if (proxy_auth.password) { |
1223 | memset(proxy_auth.password, 0, strlen(proxy_auth.password)); | |
6a83d902 | 1224 | FREE_AND_NULL(proxy_auth.password); |
372370f1 KF |
1225 | } |
1226 | ||
1227 | free((void *)curl_proxyuserpwd); | |
1228 | curl_proxyuserpwd = NULL; | |
1229 | ||
ef976395 KF |
1230 | free((void *)http_proxy_authmethod); |
1231 | http_proxy_authmethod = NULL; | |
1232 | ||
afe8a907 | 1233 | if (cert_auth.password) { |
148bb6a7 | 1234 | memset(cert_auth.password, 0, strlen(cert_auth.password)); |
6a83d902 | 1235 | FREE_AND_NULL(cert_auth.password); |
30dd9163 ML |
1236 | } |
1237 | ssl_cert_password_required = 0; | |
f18604bb | 1238 | |
afe8a907 | 1239 | if (proxy_cert_auth.password) { |
88238e02 JLS |
1240 | memset(proxy_cert_auth.password, 0, strlen(proxy_cert_auth.password)); |
1241 | FREE_AND_NULL(proxy_cert_auth.password); | |
1242 | } | |
1243 | proxy_ssl_cert_password_required = 0; | |
1244 | ||
6a83d902 | 1245 | FREE_AND_NULL(cached_accept_language); |
29508e1e NH |
1246 | } |
1247 | ||
29508e1e NH |
1248 | struct active_request_slot *get_active_slot(void) |
1249 | { | |
1250 | struct active_request_slot *slot = active_queue_head; | |
1251 | struct active_request_slot *newslot; | |
1252 | ||
29508e1e NH |
1253 | int num_transfers; |
1254 | ||
1255 | /* Wait for a slot to open up if the queue is full */ | |
1256 | while (active_requests >= max_requests) { | |
1257 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 1258 | if (num_transfers < active_requests) |
29508e1e | 1259 | process_curl_messages(); |
29508e1e | 1260 | } |
29508e1e | 1261 | |
4251ccbd | 1262 | while (slot != NULL && slot->in_use) |
29508e1e | 1263 | slot = slot->next; |
4251ccbd | 1264 | |
afe8a907 | 1265 | if (!slot) { |
29508e1e NH |
1266 | newslot = xmalloc(sizeof(*newslot)); |
1267 | newslot->curl = NULL; | |
1268 | newslot->in_use = 0; | |
1269 | newslot->next = NULL; | |
1270 | ||
1271 | slot = active_queue_head; | |
afe8a907 | 1272 | if (!slot) { |
29508e1e NH |
1273 | active_queue_head = newslot; |
1274 | } else { | |
4251ccbd | 1275 | while (slot->next != NULL) |
29508e1e | 1276 | slot = slot->next; |
29508e1e NH |
1277 | slot->next = newslot; |
1278 | } | |
1279 | slot = newslot; | |
1280 | } | |
1281 | ||
afe8a907 | 1282 | if (!slot->curl) { |
29508e1e | 1283 | slot->curl = curl_easy_duphandle(curl_default); |
ad75ebe5 | 1284 | curl_session_count++; |
29508e1e NH |
1285 | } |
1286 | ||
1287 | active_requests++; | |
1288 | slot->in_use = 1; | |
c8568e13 | 1289 | slot->results = NULL; |
baa7b67d | 1290 | slot->finished = NULL; |
29508e1e NH |
1291 | slot->callback_data = NULL; |
1292 | slot->callback_func = NULL; | |
bcfb95dd | 1293 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
912b2acf DB |
1294 | if (curl_save_cookies) |
1295 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file); | |
29508e1e | 1296 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
511cfd3b | 1297 | curl_easy_setopt(slot->curl, CURLOPT_RESOLVE, host_resolutions); |
29508e1e | 1298 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
1299 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
1300 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
1301 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 1302 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
1303 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
1304 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
b793acf1 | 1305 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1); |
835c4d36 | 1306 | curl_easy_setopt(slot->curl, CURLOPT_RANGE, NULL); |
c915f11e | 1307 | |
50d34137 JK |
1308 | /* |
1309 | * Default following to off unless "ALWAYS" is configured; this gives | |
1310 | * callers a sane starting point, and they can tweak for individual | |
1311 | * HTTP_FOLLOW_* cases themselves. | |
1312 | */ | |
1313 | if (http_follow_config == HTTP_FOLLOW_ALWAYS) | |
1314 | curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 1); | |
1315 | else | |
1316 | curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 0); | |
1317 | ||
c915f11e | 1318 | curl_easy_setopt(slot->curl, CURLOPT_IPRESOLVE, git_curl_ipresolve); |
4dbe6646 | 1319 | curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods); |
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 | { | |
29508e1e | 1328 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); |
45c17412 | 1329 | int num_transfers; |
29508e1e NH |
1330 | |
1331 | if (curlm_result != CURLM_OK && | |
1332 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
9f1b5884 EW |
1333 | warning("curl_multi_add_handle failed: %s", |
1334 | curl_multi_strerror(curlm_result)); | |
29508e1e NH |
1335 | active_requests--; |
1336 | slot->in_use = 0; | |
1337 | return 0; | |
1338 | } | |
45c17412 DB |
1339 | |
1340 | /* | |
1341 | * We know there must be something to do, since we just added | |
1342 | * something. | |
1343 | */ | |
1344 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
1345 | return 1; |
1346 | } | |
1347 | ||
fc57b6aa DB |
1348 | struct fill_chain { |
1349 | void *data; | |
1350 | int (*fill)(void *); | |
1351 | struct fill_chain *next; | |
1352 | }; | |
1353 | ||
4251ccbd | 1354 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
1355 | |
1356 | void add_fill_function(void *data, int (*fill)(void *)) | |
1357 | { | |
ee6e0653 | 1358 | struct fill_chain *new_fill = xmalloc(sizeof(*new_fill)); |
fc57b6aa | 1359 | struct fill_chain **linkp = &fill_cfg; |
ee6e0653 BW |
1360 | new_fill->data = data; |
1361 | new_fill->fill = fill; | |
1362 | new_fill->next = NULL; | |
fc57b6aa DB |
1363 | while (*linkp) |
1364 | linkp = &(*linkp)->next; | |
ee6e0653 | 1365 | *linkp = new_fill; |
fc57b6aa DB |
1366 | } |
1367 | ||
45c17412 DB |
1368 | void fill_active_slots(void) |
1369 | { | |
1370 | struct active_request_slot *slot = active_queue_head; | |
1371 | ||
fc57b6aa DB |
1372 | while (active_requests < max_requests) { |
1373 | struct fill_chain *fill; | |
1374 | for (fill = fill_cfg; fill; fill = fill->next) | |
1375 | if (fill->fill(fill->data)) | |
1376 | break; | |
1377 | ||
1378 | if (!fill) | |
45c17412 | 1379 | break; |
fc57b6aa | 1380 | } |
45c17412 DB |
1381 | |
1382 | while (slot != NULL) { | |
ad75ebe5 TRC |
1383 | if (!slot->in_use && slot->curl != NULL |
1384 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
1385 | curl_easy_cleanup(slot->curl); |
1386 | slot->curl = NULL; | |
ad75ebe5 | 1387 | curl_session_count--; |
45c17412 DB |
1388 | } |
1389 | slot = slot->next; | |
1390 | } | |
1391 | } | |
1392 | ||
29508e1e NH |
1393 | void step_active_slots(void) |
1394 | { | |
1395 | int num_transfers; | |
1396 | CURLMcode curlm_result; | |
1397 | ||
1398 | do { | |
1399 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
1400 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
1401 | if (num_transfers < active_requests) { | |
1402 | process_curl_messages(); | |
1403 | fill_active_slots(); | |
1404 | } | |
1405 | } | |
29508e1e NH |
1406 | |
1407 | void run_active_slot(struct active_request_slot *slot) | |
1408 | { | |
29508e1e NH |
1409 | fd_set readfds; |
1410 | fd_set writefds; | |
1411 | fd_set excfds; | |
1412 | int max_fd; | |
1413 | struct timeval select_timeout; | |
baa7b67d | 1414 | int finished = 0; |
29508e1e | 1415 | |
baa7b67d NH |
1416 | slot->finished = &finished; |
1417 | while (!finished) { | |
29508e1e NH |
1418 | step_active_slots(); |
1419 | ||
df26c471 | 1420 | if (slot->in_use) { |
eb56c821 MF |
1421 | long curl_timeout; |
1422 | curl_multi_timeout(curlm, &curl_timeout); | |
1423 | if (curl_timeout == 0) { | |
1424 | continue; | |
1425 | } else if (curl_timeout == -1) { | |
1426 | select_timeout.tv_sec = 0; | |
1427 | select_timeout.tv_usec = 50000; | |
1428 | } else { | |
1429 | select_timeout.tv_sec = curl_timeout / 1000; | |
1430 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
1431 | } | |
29508e1e | 1432 | |
6f9dd67f | 1433 | max_fd = -1; |
29508e1e NH |
1434 | FD_ZERO(&readfds); |
1435 | FD_ZERO(&writefds); | |
1436 | FD_ZERO(&excfds); | |
6f9dd67f | 1437 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 1438 | |
7202b81f SZ |
1439 | /* |
1440 | * It can happen that curl_multi_timeout returns a pathologically | |
1441 | * long timeout when curl_multi_fdset returns no file descriptors | |
1442 | * to read. See commit message for more details. | |
1443 | */ | |
1444 | if (max_fd < 0 && | |
1445 | (select_timeout.tv_sec > 0 || | |
1446 | select_timeout.tv_usec > 50000)) { | |
1447 | select_timeout.tv_sec = 0; | |
1448 | select_timeout.tv_usec = 50000; | |
1449 | } | |
1450 | ||
6f9dd67f | 1451 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
1452 | } |
1453 | } | |
05e280c0 JH |
1454 | |
1455 | /* | |
1456 | * The value of slot->finished we set before the loop was used | |
1457 | * to set our "finished" variable when our request completed. | |
1458 | * | |
1459 | * 1. The slot may not have been reused for another requst | |
1460 | * yet, in which case it still has &finished. | |
1461 | * | |
1462 | * 2. The slot may already be in-use to serve another request, | |
1463 | * which can further be divided into two cases: | |
1464 | * | |
1465 | * (a) If call run_active_slot() hasn't been called for that | |
1466 | * other request, slot->finished would have been cleared | |
1467 | * by get_active_slot() and has NULL. | |
1468 | * | |
1469 | * (b) If the request did call run_active_slot(), then the | |
1470 | * call would have updated slot->finished at the beginning | |
1471 | * of this function, and with the clearing of the member | |
1472 | * below, we would find that slot->finished is now NULL. | |
1473 | * | |
1474 | * In all cases, slot->finished has no useful information to | |
1475 | * anybody at this point. Some compilers warn us for | |
1476 | * attempting to smuggle a pointer that is about to become | |
1477 | * invalid, i.e. &finished. We clear it here to assure them. | |
1478 | */ | |
1479 | slot->finished = NULL; | |
29508e1e NH |
1480 | } |
1481 | ||
83e41e2e | 1482 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
1483 | { |
1484 | closedown_active_slot(slot); | |
2abc848d | 1485 | if (slot->curl) { |
d8b6b84d | 1486 | xmulti_remove_handle(slot); |
2abc848d EW |
1487 | if (curl_session_count > min_curl_sessions) { |
1488 | curl_easy_cleanup(slot->curl); | |
1489 | slot->curl = NULL; | |
1490 | curl_session_count--; | |
1491 | } | |
53f31389 MW |
1492 | } |
1493 | fill_active_slots(); | |
1494 | } | |
1495 | ||
29508e1e NH |
1496 | void finish_all_active_slots(void) |
1497 | { | |
1498 | struct active_request_slot *slot = active_queue_head; | |
1499 | ||
1500 | while (slot != NULL) | |
1501 | if (slot->in_use) { | |
1502 | run_active_slot(slot); | |
1503 | slot = active_queue_head; | |
1504 | } else { | |
1505 | slot = slot->next; | |
1506 | } | |
1507 | } | |
d7e92806 | 1508 | |
5ace994f | 1509 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
1510 | static inline int needs_quote(int ch) |
1511 | { | |
1512 | if (((ch >= 'A') && (ch <= 'Z')) | |
1513 | || ((ch >= 'a') && (ch <= 'z')) | |
1514 | || ((ch >= '0') && (ch <= '9')) | |
1515 | || (ch == '/') | |
1516 | || (ch == '-') | |
1517 | || (ch == '.')) | |
1518 | return 0; | |
1519 | return 1; | |
1520 | } | |
1521 | ||
d7e92806 MH |
1522 | static char *quote_ref_url(const char *base, const char *ref) |
1523 | { | |
113106e0 | 1524 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 1525 | const char *cp; |
113106e0 | 1526 | int ch; |
d7e92806 | 1527 | |
5ace994f | 1528 | end_url_with_slash(&buf, base); |
113106e0 TRC |
1529 | |
1530 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 1531 | if (needs_quote(ch)) |
113106e0 | 1532 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 1533 | else |
113106e0 | 1534 | strbuf_addch(&buf, *cp); |
d7e92806 | 1535 | |
113106e0 | 1536 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
1537 | } |
1538 | ||
5424bc55 TRC |
1539 | void append_remote_object_url(struct strbuf *buf, const char *url, |
1540 | const char *hex, | |
1541 | int only_two_digit_prefix) | |
1542 | { | |
800324c3 TRC |
1543 | end_url_with_slash(buf, url); |
1544 | ||
1545 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 | 1546 | if (!only_two_digit_prefix) |
bc57b9c0 | 1547 | strbuf_addstr(buf, hex + 2); |
5424bc55 TRC |
1548 | } |
1549 | ||
1550 | char *get_remote_object_url(const char *url, const char *hex, | |
1551 | int only_two_digit_prefix) | |
1552 | { | |
1553 | struct strbuf buf = STRBUF_INIT; | |
1554 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
1555 | return strbuf_detach(&buf, NULL); | |
1556 | } | |
1557 | ||
a3722bcb JK |
1558 | void normalize_curl_result(CURLcode *result, long http_code, |
1559 | char *errorstr, size_t errorlen) | |
88097030 | 1560 | { |
6d052d78 JK |
1561 | /* |
1562 | * If we see a failing http code with CURLE_OK, we have turned off | |
1563 | * FAILONERROR (to keep the server's custom error response), and should | |
1564 | * translate the code into failure here. | |
50d34137 JK |
1565 | * |
1566 | * Likewise, if we see a redirect (30x code), that means we turned off | |
1567 | * redirect-following, and we should treat the result as an error. | |
6d052d78 | 1568 | */ |
a3722bcb JK |
1569 | if (*result == CURLE_OK && http_code >= 300) { |
1570 | *result = CURLE_HTTP_RETURNED_ERROR; | |
6d052d78 JK |
1571 | /* |
1572 | * Normally curl will already have put the "reason phrase" | |
1573 | * from the server into curl_errorstr; unfortunately without | |
1574 | * FAILONERROR it is lost, so we can give only the numeric | |
1575 | * status code. | |
1576 | */ | |
a3722bcb | 1577 | xsnprintf(errorstr, errorlen, |
1a168e5c | 1578 | "The requested URL returned error: %ld", |
a3722bcb | 1579 | http_code); |
6d052d78 | 1580 | } |
a3722bcb JK |
1581 | } |
1582 | ||
1583 | static int handle_curl_result(struct slot_results *results) | |
1584 | { | |
1585 | normalize_curl_result(&results->curl_result, results->http_code, | |
1586 | curl_errorstr, sizeof(curl_errorstr)); | |
6d052d78 | 1587 | |
88097030 JK |
1588 | if (results->curl_result == CURLE_OK) { |
1589 | credential_approve(&http_auth); | |
a4a4439f | 1590 | credential_approve(&proxy_auth); |
cd27f604 | 1591 | credential_approve(&cert_auth); |
88097030 | 1592 | return HTTP_OK; |
cd27f604 JS |
1593 | } else if (results->curl_result == CURLE_SSL_CERTPROBLEM) { |
1594 | /* | |
1595 | * We can't tell from here whether it's a bad path, bad | |
1596 | * certificate, bad password, or something else wrong | |
1597 | * with the certificate. So we reject the credential to | |
1598 | * avoid caching or saving a bad password. | |
1599 | */ | |
1600 | credential_reject(&cert_auth); | |
1601 | return HTTP_NOAUTH; | |
3e8084f1 ÆAB |
1602 | #ifdef GIT_CURL_HAVE_CURLE_SSL_PINNEDPUBKEYNOTMATCH |
1603 | } else if (results->curl_result == CURLE_SSL_PINNEDPUBKEYNOTMATCH) { | |
1604 | return HTTP_NOMATCHPUBLICKEY; | |
1605 | #endif | |
88097030 JK |
1606 | } else if (missing_target(results)) |
1607 | return HTTP_MISSING_TARGET; | |
1608 | else if (results->http_code == 401) { | |
1609 | if (http_auth.username && http_auth.password) { | |
1610 | credential_reject(&http_auth); | |
1611 | return HTTP_NOAUTH; | |
1612 | } else { | |
ecf7b129 JK |
1613 | http_auth_methods &= ~CURLAUTH_GSSNEGOTIATE; |
1614 | if (results->auth_avail) { | |
1615 | http_auth_methods &= results->auth_avail; | |
1616 | http_auth_methods_restricted = 1; | |
1617 | } | |
88097030 JK |
1618 | return HTTP_REAUTH; |
1619 | } | |
1620 | } else { | |
372370f1 KF |
1621 | if (results->http_connectcode == 407) |
1622 | credential_reject(&proxy_auth); | |
88097030 JK |
1623 | if (!curl_errorstr[0]) |
1624 | strlcpy(curl_errorstr, | |
1625 | curl_easy_strerror(results->curl_result), | |
1626 | sizeof(curl_errorstr)); | |
1627 | return HTTP_ERROR; | |
1628 | } | |
1629 | } | |
1630 | ||
beed336c JK |
1631 | int run_one_slot(struct active_request_slot *slot, |
1632 | struct slot_results *results) | |
1633 | { | |
1634 | slot->results = results; | |
1635 | if (!start_active_slot(slot)) { | |
1a168e5c JK |
1636 | xsnprintf(curl_errorstr, sizeof(curl_errorstr), |
1637 | "failed to start HTTP request"); | |
beed336c JK |
1638 | return HTTP_START_FAILED; |
1639 | } | |
1640 | ||
1641 | run_active_slot(slot); | |
1642 | return handle_curl_result(results); | |
1643 | } | |
1644 | ||
8cb01e2f JS |
1645 | struct curl_slist *http_copy_default_headers(void) |
1646 | { | |
4d17fd25 JS |
1647 | struct curl_slist *headers = NULL; |
1648 | const struct string_list_item *item; | |
8cb01e2f | 1649 | |
4d17fd25 JS |
1650 | for_each_string_list_item(item, &extra_http_headers) |
1651 | headers = curl_slist_append(headers, item->string); | |
8cb01e2f JS |
1652 | |
1653 | return headers; | |
1654 | } | |
1655 | ||
132b70a2 JK |
1656 | static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf) |
1657 | { | |
1658 | char *ptr; | |
1659 | CURLcode ret; | |
1660 | ||
1661 | strbuf_reset(buf); | |
1662 | ret = curl_easy_getinfo(curl, info, &ptr); | |
1663 | if (!ret && ptr) | |
1664 | strbuf_addstr(buf, ptr); | |
1665 | return ret; | |
1666 | } | |
1667 | ||
e3131626 JK |
1668 | /* |
1669 | * Check for and extract a content-type parameter. "raw" | |
1670 | * should be positioned at the start of the potential | |
1671 | * parameter, with any whitespace already removed. | |
1672 | * | |
1673 | * "name" is the name of the parameter. The value is appended | |
1674 | * to "out". | |
1675 | */ | |
1676 | static int extract_param(const char *raw, const char *name, | |
1677 | struct strbuf *out) | |
1678 | { | |
1679 | size_t len = strlen(name); | |
1680 | ||
1681 | if (strncasecmp(raw, name, len)) | |
1682 | return -1; | |
1683 | raw += len; | |
1684 | ||
1685 | if (*raw != '=') | |
1686 | return -1; | |
1687 | raw++; | |
1688 | ||
f34a655d | 1689 | while (*raw && !isspace(*raw) && *raw != ';') |
e3131626 JK |
1690 | strbuf_addch(out, *raw++); |
1691 | return 0; | |
1692 | } | |
1693 | ||
bf197fd7 JK |
1694 | /* |
1695 | * Extract a normalized version of the content type, with any | |
1696 | * spaces suppressed, all letters lowercased, and no trailing ";" | |
1697 | * or parameters. | |
1698 | * | |
1699 | * Note that we will silently remove even invalid whitespace. For | |
1700 | * example, "text / plain" is specifically forbidden by RFC 2616, | |
1701 | * but "text/plain" is the only reasonable output, and this keeps | |
1702 | * our code simple. | |
1703 | * | |
e3131626 JK |
1704 | * If the "charset" argument is not NULL, store the value of any |
1705 | * charset parameter there. | |
1706 | * | |
bf197fd7 | 1707 | * Example: |
e3131626 | 1708 | * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8" |
bf197fd7 JK |
1709 | * "text / plain" -> "text/plain" |
1710 | */ | |
e3131626 JK |
1711 | static void extract_content_type(struct strbuf *raw, struct strbuf *type, |
1712 | struct strbuf *charset) | |
bf197fd7 JK |
1713 | { |
1714 | const char *p; | |
1715 | ||
1716 | strbuf_reset(type); | |
1717 | strbuf_grow(type, raw->len); | |
1718 | for (p = raw->buf; *p; p++) { | |
1719 | if (isspace(*p)) | |
1720 | continue; | |
e3131626 JK |
1721 | if (*p == ';') { |
1722 | p++; | |
bf197fd7 | 1723 | break; |
e3131626 | 1724 | } |
bf197fd7 JK |
1725 | strbuf_addch(type, tolower(*p)); |
1726 | } | |
e3131626 JK |
1727 | |
1728 | if (!charset) | |
1729 | return; | |
1730 | ||
1731 | strbuf_reset(charset); | |
1732 | while (*p) { | |
f34a655d | 1733 | while (isspace(*p) || *p == ';') |
e3131626 JK |
1734 | p++; |
1735 | if (!extract_param(p, "charset", charset)) | |
1736 | return; | |
1737 | while (*p && !isspace(*p)) | |
1738 | p++; | |
1739 | } | |
c553fd1c JK |
1740 | |
1741 | if (!charset->len && starts_with(type->buf, "text/")) | |
1742 | strbuf_addstr(charset, "ISO-8859-1"); | |
bf197fd7 JK |
1743 | } |
1744 | ||
f18604bb YE |
1745 | static void write_accept_language(struct strbuf *buf) |
1746 | { | |
1747 | /* | |
1748 | * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than | |
1749 | * that, q-value will be smaller than 0.001, the minimum q-value the | |
1750 | * HTTP specification allows. See | |
1751 | * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value. | |
1752 | */ | |
1753 | const int MAX_DECIMAL_PLACES = 3; | |
1754 | const int MAX_LANGUAGE_TAGS = 1000; | |
1755 | const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE = 4000; | |
1756 | char **language_tags = NULL; | |
1757 | int num_langs = 0; | |
1758 | const char *s = get_preferred_languages(); | |
1759 | int i; | |
1760 | struct strbuf tag = STRBUF_INIT; | |
1761 | ||
1762 | /* Don't add Accept-Language header if no language is preferred. */ | |
1763 | if (!s) | |
1764 | return; | |
1765 | ||
1766 | /* | |
1767 | * Split the colon-separated string of preferred languages into | |
1768 | * language_tags array. | |
1769 | */ | |
1770 | do { | |
1771 | /* collect language tag */ | |
1772 | for (; *s && (isalnum(*s) || *s == '_'); s++) | |
1773 | strbuf_addch(&tag, *s == '_' ? '-' : *s); | |
1774 | ||
1775 | /* skip .codeset, @modifier and any other unnecessary parts */ | |
1776 | while (*s && *s != ':') | |
1777 | s++; | |
1778 | ||
1779 | if (tag.len) { | |
1780 | num_langs++; | |
1781 | REALLOC_ARRAY(language_tags, num_langs); | |
1782 | language_tags[num_langs - 1] = strbuf_detach(&tag, NULL); | |
1783 | if (num_langs >= MAX_LANGUAGE_TAGS - 1) /* -1 for '*' */ | |
1784 | break; | |
1785 | } | |
1786 | } while (*s++); | |
1787 | ||
1788 | /* write Accept-Language header into buf */ | |
1789 | if (num_langs) { | |
1790 | int last_buf_len = 0; | |
1791 | int max_q; | |
1792 | int decimal_places; | |
1793 | char q_format[32]; | |
1794 | ||
1795 | /* add '*' */ | |
1796 | REALLOC_ARRAY(language_tags, num_langs + 1); | |
1797 | language_tags[num_langs++] = "*"; /* it's OK; this won't be freed */ | |
1798 | ||
1799 | /* compute decimal_places */ | |
1800 | for (max_q = 1, decimal_places = 0; | |
1801 | max_q < num_langs && decimal_places <= MAX_DECIMAL_PLACES; | |
1802 | decimal_places++, max_q *= 10) | |
1803 | ; | |
1804 | ||
5096d490 | 1805 | xsnprintf(q_format, sizeof(q_format), ";q=0.%%0%dd", decimal_places); |
f18604bb YE |
1806 | |
1807 | strbuf_addstr(buf, "Accept-Language: "); | |
1808 | ||
1809 | for (i = 0; i < num_langs; i++) { | |
1810 | if (i > 0) | |
1811 | strbuf_addstr(buf, ", "); | |
1812 | ||
1813 | strbuf_addstr(buf, language_tags[i]); | |
1814 | ||
1815 | if (i > 0) | |
1816 | strbuf_addf(buf, q_format, max_q - i); | |
1817 | ||
1818 | if (buf->len > MAX_ACCEPT_LANGUAGE_HEADER_SIZE) { | |
1819 | strbuf_remove(buf, last_buf_len, buf->len - last_buf_len); | |
1820 | break; | |
1821 | } | |
1822 | ||
1823 | last_buf_len = buf->len; | |
1824 | } | |
1825 | } | |
1826 | ||
1827 | /* free language tags -- last one is a static '*' */ | |
1828 | for (i = 0; i < num_langs - 1; i++) | |
1829 | free(language_tags[i]); | |
1830 | free(language_tags); | |
1831 | } | |
1832 | ||
1833 | /* | |
1834 | * Get an Accept-Language header which indicates user's preferred languages. | |
1835 | * | |
1836 | * Examples: | |
1837 | * LANGUAGE= -> "" | |
1838 | * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1" | |
1839 | * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1" | |
1840 | * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1" | |
1841 | * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1" | |
1842 | * LANGUAGE= LANG=C -> "" | |
1843 | */ | |
b0c4adcd | 1844 | const char *http_get_accept_language_header(void) |
f18604bb YE |
1845 | { |
1846 | if (!cached_accept_language) { | |
1847 | struct strbuf buf = STRBUF_INIT; | |
1848 | write_accept_language(&buf); | |
1849 | if (buf.len > 0) | |
1850 | cached_accept_language = strbuf_detach(&buf, NULL); | |
1851 | } | |
1852 | ||
1853 | return cached_accept_language; | |
1854 | } | |
1855 | ||
835c4d36 DT |
1856 | static void http_opt_request_remainder(CURL *curl, off_t pos) |
1857 | { | |
1858 | char buf[128]; | |
1859 | xsnprintf(buf, sizeof(buf), "%"PRIuMAX"-", (uintmax_t)pos); | |
1860 | curl_easy_setopt(curl, CURLOPT_RANGE, buf); | |
1861 | } | |
1862 | ||
e929cd20 MH |
1863 | /* http_request() targets */ |
1864 | #define HTTP_REQUEST_STRBUF 0 | |
1865 | #define HTTP_REQUEST_FILE 1 | |
1866 | ||
1bbcc224 JK |
1867 | static int http_request(const char *url, |
1868 | void *result, int target, | |
1869 | const struct http_get_options *options) | |
e929cd20 MH |
1870 | { |
1871 | struct active_request_slot *slot; | |
1872 | struct slot_results results; | |
8cb01e2f | 1873 | struct curl_slist *headers = http_copy_default_headers(); |
e929cd20 | 1874 | struct strbuf buf = STRBUF_INIT; |
f18604bb | 1875 | const char *accept_language; |
e929cd20 MH |
1876 | int ret; |
1877 | ||
1878 | slot = get_active_slot(); | |
e929cd20 MH |
1879 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); |
1880 | ||
afe8a907 | 1881 | if (!result) { |
e929cd20 MH |
1882 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); |
1883 | } else { | |
1884 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
8dda4cbd | 1885 | curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, result); |
e929cd20 MH |
1886 | |
1887 | if (target == HTTP_REQUEST_FILE) { | |
f8117f55 | 1888 | off_t posn = ftello(result); |
e929cd20 MH |
1889 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, |
1890 | fwrite); | |
835c4d36 DT |
1891 | if (posn > 0) |
1892 | http_opt_request_remainder(slot->curl, posn); | |
e929cd20 MH |
1893 | } else |
1894 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
1895 | fwrite_buffer); | |
1896 | } | |
1897 | ||
b0c4adcd | 1898 | accept_language = http_get_accept_language_header(); |
f18604bb YE |
1899 | |
1900 | if (accept_language) | |
1901 | headers = curl_slist_append(headers, accept_language); | |
1902 | ||
e929cd20 | 1903 | strbuf_addstr(&buf, "Pragma:"); |
1bbcc224 | 1904 | if (options && options->no_cache) |
e929cd20 | 1905 | strbuf_addstr(&buf, " no-cache"); |
50d34137 JK |
1906 | if (options && options->initial_request && |
1907 | http_follow_config == HTTP_FOLLOW_INITIAL) | |
1908 | curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 1); | |
e929cd20 MH |
1909 | |
1910 | headers = curl_slist_append(headers, buf.buf); | |
1911 | ||
8ff14ed4 BW |
1912 | /* Add additional headers here */ |
1913 | if (options && options->extra_headers) { | |
1914 | const struct string_list_item *item; | |
1915 | for_each_string_list_item(item, options->extra_headers) { | |
1916 | headers = curl_slist_append(headers, item->string); | |
1917 | } | |
1918 | } | |
1919 | ||
e929cd20 MH |
1920 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); |
1921 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
1a53e692 | 1922 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); |
e6cf87b1 | 1923 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0); |
e929cd20 | 1924 | |
beed336c | 1925 | ret = run_one_slot(slot, &results); |
e929cd20 | 1926 | |
bf197fd7 JK |
1927 | if (options && options->content_type) { |
1928 | struct strbuf raw = STRBUF_INIT; | |
1929 | curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE, &raw); | |
e3131626 JK |
1930 | extract_content_type(&raw, options->content_type, |
1931 | options->charset); | |
bf197fd7 JK |
1932 | strbuf_release(&raw); |
1933 | } | |
4656bf47 | 1934 | |
78868962 JK |
1935 | if (options && options->effective_url) |
1936 | curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL, | |
1937 | options->effective_url); | |
4656bf47 | 1938 | |
e929cd20 MH |
1939 | curl_slist_free_all(headers); |
1940 | strbuf_release(&buf); | |
1941 | ||
1942 | return ret; | |
1943 | } | |
1944 | ||
c93c92f3 JK |
1945 | /* |
1946 | * Update the "base" url to a more appropriate value, as deduced by | |
1947 | * redirects seen when requesting a URL starting with "url". | |
1948 | * | |
1949 | * The "asked" parameter is a URL that we asked curl to access, and must begin | |
1950 | * with "base". | |
1951 | * | |
1952 | * The "got" parameter is the URL that curl reported to us as where we ended | |
1953 | * up. | |
1954 | * | |
1955 | * Returns 1 if we updated the base url, 0 otherwise. | |
1956 | * | |
1957 | * Our basic strategy is to compare "base" and "asked" to find the bits | |
1958 | * specific to our request. We then strip those bits off of "got" to yield the | |
1959 | * new base. So for example, if our base is "http://example.com/foo.git", | |
1960 | * and we ask for "http://example.com/foo.git/info/refs", we might end up | |
1961 | * with "https://other.example.com/foo.git/info/refs". We would want the | |
1962 | * new URL to become "https://other.example.com/foo.git". | |
1963 | * | |
1964 | * Note that this assumes a sane redirect scheme. It's entirely possible | |
1965 | * in the example above to end up at a URL that does not even end in | |
6628eb41 JK |
1966 | * "info/refs". In such a case we die. There's not much we can do, such a |
1967 | * scheme is unlikely to represent a real git repository, and failing to | |
1968 | * rewrite the base opens options for malicious redirects to do funny things. | |
c93c92f3 JK |
1969 | */ |
1970 | static int update_url_from_redirect(struct strbuf *base, | |
1971 | const char *asked, | |
1972 | const struct strbuf *got) | |
1973 | { | |
1974 | const char *tail; | |
986d7f4d | 1975 | size_t new_len; |
c93c92f3 JK |
1976 | |
1977 | if (!strcmp(asked, got->buf)) | |
1978 | return 0; | |
1979 | ||
de8118e1 | 1980 | if (!skip_prefix(asked, base->buf, &tail)) |
033abf97 | 1981 | BUG("update_url_from_redirect: %s is not a superset of %s", |
c93c92f3 JK |
1982 | asked, base->buf); |
1983 | ||
986d7f4d JK |
1984 | new_len = got->len; |
1985 | if (!strip_suffix_mem(got->buf, &new_len, tail)) | |
6628eb41 JK |
1986 | die(_("unable to update url base from redirection:\n" |
1987 | " asked for: %s\n" | |
1988 | " redirect: %s"), | |
1989 | asked, got->buf); | |
c93c92f3 JK |
1990 | |
1991 | strbuf_reset(base); | |
986d7f4d | 1992 | strbuf_add(base, got->buf, new_len); |
6628eb41 | 1993 | |
c93c92f3 JK |
1994 | return 1; |
1995 | } | |
1996 | ||
4656bf47 | 1997 | static int http_request_reauth(const char *url, |
4656bf47 | 1998 | void *result, int target, |
1bbcc224 | 1999 | struct http_get_options *options) |
8d677edc | 2000 | { |
1bbcc224 | 2001 | int ret = http_request(url, result, target, options); |
c93c92f3 | 2002 | |
8e27391a JT |
2003 | if (ret != HTTP_OK && ret != HTTP_REAUTH) |
2004 | return ret; | |
2005 | ||
c93c92f3 JK |
2006 | if (options && options->effective_url && options->base_url) { |
2007 | if (update_url_from_redirect(options->base_url, | |
2008 | url, options->effective_url)) { | |
2009 | credential_from_url(&http_auth, options->base_url->buf); | |
2010 | url = options->effective_url->buf; | |
2011 | } | |
2012 | } | |
2013 | ||
8d677edc JK |
2014 | if (ret != HTTP_REAUTH) |
2015 | return ret; | |
6d052d78 JK |
2016 | |
2017 | /* | |
e6cf87b1 MS |
2018 | * The previous request may have put cruft into our output stream; we |
2019 | * should clear it out before making our next request. | |
6d052d78 | 2020 | */ |
e6cf87b1 MS |
2021 | switch (target) { |
2022 | case HTTP_REQUEST_STRBUF: | |
2023 | strbuf_reset(result); | |
2024 | break; | |
2025 | case HTTP_REQUEST_FILE: | |
2026 | if (fflush(result)) { | |
2027 | error_errno("unable to flush a file"); | |
2028 | return HTTP_START_FAILED; | |
2029 | } | |
2030 | rewind(result); | |
2031 | if (ftruncate(fileno(result), 0) < 0) { | |
2032 | error_errno("unable to truncate a file"); | |
2033 | return HTTP_START_FAILED; | |
6d052d78 | 2034 | } |
e6cf87b1 MS |
2035 | break; |
2036 | default: | |
2037 | BUG("Unknown http_request target"); | |
6d052d78 | 2038 | } |
2501aff8 JK |
2039 | |
2040 | credential_fill(&http_auth); | |
2041 | ||
1bbcc224 | 2042 | return http_request(url, result, target, options); |
8d677edc JK |
2043 | } |
2044 | ||
4656bf47 | 2045 | int http_get_strbuf(const char *url, |
1bbcc224 JK |
2046 | struct strbuf *result, |
2047 | struct http_get_options *options) | |
e929cd20 | 2048 | { |
1bbcc224 | 2049 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
2050 | } |
2051 | ||
83e41e2e | 2052 | /* |
a7793a74 | 2053 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
2054 | * |
2055 | * If a previous interrupted download is detected (i.e. a previous temporary | |
2056 | * file is still around) the download is resumed. | |
2057 | */ | |
c1d024b8 DS |
2058 | int http_get_file(const char *url, const char *filename, |
2059 | struct http_get_options *options) | |
e929cd20 MH |
2060 | { |
2061 | int ret; | |
2062 | struct strbuf tmpfile = STRBUF_INIT; | |
2063 | FILE *result; | |
2064 | ||
2065 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
2066 | result = fopen(tmpfile.buf, "a"); | |
3d1fb769 | 2067 | if (!result) { |
e929cd20 MH |
2068 | error("Unable to open local file %s", tmpfile.buf); |
2069 | ret = HTTP_ERROR; | |
2070 | goto cleanup; | |
2071 | } | |
2072 | ||
1bbcc224 | 2073 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
2074 | fclose(result); |
2075 | ||
cb5add58 | 2076 | if (ret == HTTP_OK && finalize_object_file(tmpfile.buf, filename)) |
e929cd20 MH |
2077 | ret = HTTP_ERROR; |
2078 | cleanup: | |
2079 | strbuf_release(&tmpfile); | |
2080 | return ret; | |
2081 | } | |
2082 | ||
c13b2633 | 2083 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 | 2084 | { |
1bbcc224 | 2085 | struct http_get_options options = {0}; |
d7e92806 MH |
2086 | char *url; |
2087 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 2088 | int ret = -1; |
d7e92806 | 2089 | |
1bbcc224 JK |
2090 | options.no_cache = 1; |
2091 | ||
c13b2633 | 2092 | url = quote_ref_url(base, ref->name); |
1bbcc224 | 2093 | if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) { |
0d5896e1 | 2094 | strbuf_rtrim(&buffer); |
ae041a0f | 2095 | if (buffer.len == the_hash_algo->hexsz) |
f4e54d02 | 2096 | ret = get_oid_hex(buffer.buf, &ref->old_oid); |
59556548 | 2097 | else if (starts_with(buffer.buf, "ref: ")) { |
0d5896e1 MH |
2098 | ref->symref = xstrdup(buffer.buf + 5); |
2099 | ret = 0; | |
d7e92806 | 2100 | } |
d7e92806 MH |
2101 | } |
2102 | ||
2103 | strbuf_release(&buffer); | |
2104 | free(url); | |
2105 | return ret; | |
2106 | } | |
b8caac2b TRC |
2107 | |
2108 | /* Helpers for fetching packs */ | |
05dfc7ca | 2109 | static char *fetch_pack_index(unsigned char *hash, const char *base_url) |
b8caac2b | 2110 | { |
750ef425 | 2111 | char *url, *tmp; |
b8caac2b | 2112 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 2113 | |
b8caac2b | 2114 | if (http_is_verbose) |
05dfc7ca | 2115 | fprintf(stderr, "Getting index for pack %s\n", hash_to_hex(hash)); |
b8caac2b TRC |
2116 | |
2117 | end_url_with_slash(&buf, base_url); | |
05dfc7ca | 2118 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", hash_to_hex(hash)); |
b8caac2b TRC |
2119 | url = strbuf_detach(&buf, NULL); |
2120 | ||
05dfc7ca | 2121 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(hash)); |
750ef425 SP |
2122 | tmp = strbuf_detach(&buf, NULL); |
2123 | ||
70900eda | 2124 | if (http_get_file(url, tmp, NULL) != HTTP_OK) { |
82247e9b | 2125 | error("Unable to get pack index %s", url); |
6a83d902 | 2126 | FREE_AND_NULL(tmp); |
750ef425 | 2127 | } |
b8caac2b | 2128 | |
b8caac2b | 2129 | free(url); |
750ef425 | 2130 | return tmp; |
b8caac2b TRC |
2131 | } |
2132 | ||
2133 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
2134 | unsigned char *sha1, const char *base_url) | |
2135 | { | |
2136 | struct packed_git *new_pack; | |
750ef425 SP |
2137 | char *tmp_idx = NULL; |
2138 | int ret; | |
b8caac2b | 2139 | |
750ef425 | 2140 | if (has_pack_index(sha1)) { |
8b9c2dd4 | 2141 | new_pack = parse_pack_index(sha1, sha1_pack_index_name(sha1)); |
750ef425 SP |
2142 | if (!new_pack) |
2143 | return -1; /* parse_pack_index() already issued error message */ | |
2144 | goto add_pack; | |
2145 | } | |
2146 | ||
2147 | tmp_idx = fetch_pack_index(sha1, base_url); | |
2148 | if (!tmp_idx) | |
b8caac2b TRC |
2149 | return -1; |
2150 | ||
750ef425 SP |
2151 | new_pack = parse_pack_index(sha1, tmp_idx); |
2152 | if (!new_pack) { | |
2153 | unlink(tmp_idx); | |
2154 | free(tmp_idx); | |
2155 | ||
b8caac2b | 2156 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
2157 | } |
2158 | ||
2159 | ret = verify_pack_index(new_pack); | |
2160 | if (!ret) { | |
2161 | close_pack_index(new_pack); | |
cb5add58 | 2162 | ret = finalize_object_file(tmp_idx, sha1_pack_index_name(sha1)); |
750ef425 SP |
2163 | } |
2164 | free(tmp_idx); | |
2165 | if (ret) | |
2166 | return -1; | |
2167 | ||
2168 | add_pack: | |
b8caac2b TRC |
2169 | new_pack->next = *packs_head; |
2170 | *packs_head = new_pack; | |
2171 | return 0; | |
2172 | } | |
2173 | ||
2174 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
2175 | { | |
1bbcc224 | 2176 | struct http_get_options options = {0}; |
ddc56d47 JK |
2177 | int ret = 0; |
2178 | char *url; | |
2179 | const char *data; | |
b8caac2b | 2180 | struct strbuf buf = STRBUF_INIT; |
ddc56d47 | 2181 | struct object_id oid; |
b8caac2b TRC |
2182 | |
2183 | end_url_with_slash(&buf, base_url); | |
2184 | strbuf_addstr(&buf, "objects/info/packs"); | |
2185 | url = strbuf_detach(&buf, NULL); | |
2186 | ||
1bbcc224 JK |
2187 | options.no_cache = 1; |
2188 | ret = http_get_strbuf(url, &buf, &options); | |
b8caac2b TRC |
2189 | if (ret != HTTP_OK) |
2190 | goto cleanup; | |
2191 | ||
2192 | data = buf.buf; | |
ddc56d47 JK |
2193 | while (*data) { |
2194 | if (skip_prefix(data, "P pack-", &data) && | |
2195 | !parse_oid_hex(data, &oid, &data) && | |
2196 | skip_prefix(data, ".pack", &data) && | |
2197 | (*data == '\n' || *data == '\0')) { | |
2198 | fetch_and_setup_pack_index(packs_head, oid.hash, base_url); | |
2199 | } else { | |
2200 | data = strchrnul(data, '\n'); | |
b8caac2b | 2201 | } |
ddc56d47 JK |
2202 | if (*data) |
2203 | data++; /* skip past newline */ | |
b8caac2b TRC |
2204 | } |
2205 | ||
2206 | cleanup: | |
2207 | free(url); | |
2208 | return ret; | |
2209 | } | |
2264dfa5 TRC |
2210 | |
2211 | void release_http_pack_request(struct http_pack_request *preq) | |
2212 | { | |
afe8a907 | 2213 | if (preq->packfile) { |
2264dfa5 TRC |
2214 | fclose(preq->packfile); |
2215 | preq->packfile = NULL; | |
2264dfa5 | 2216 | } |
2264dfa5 | 2217 | preq->slot = NULL; |
390c6cbc | 2218 | strbuf_release(&preq->tmpfile); |
2264dfa5 | 2219 | free(preq->url); |
826aed50 | 2220 | free(preq); |
2264dfa5 TRC |
2221 | } |
2222 | ||
726b25a9 JT |
2223 | static const char *default_index_pack_args[] = |
2224 | {"index-pack", "--stdin", NULL}; | |
2225 | ||
2264dfa5 TRC |
2226 | int finish_http_pack_request(struct http_pack_request *preq) |
2227 | { | |
d3180279 | 2228 | struct child_process ip = CHILD_PROCESS_INIT; |
9cb3cab5 JT |
2229 | int tmpfile_fd; |
2230 | int ret = 0; | |
2264dfa5 | 2231 | |
3065274c SP |
2232 | fclose(preq->packfile); |
2233 | preq->packfile = NULL; | |
2264dfa5 | 2234 | |
9cb3cab5 | 2235 | tmpfile_fd = xopen(preq->tmpfile.buf, O_RDONLY); |
fe72d420 | 2236 | |
fe72d420 | 2237 | ip.git_cmd = 1; |
9cb3cab5 | 2238 | ip.in = tmpfile_fd; |
6def0ff8 ÆAB |
2239 | strvec_pushv(&ip.args, preq->index_pack_args ? |
2240 | preq->index_pack_args : | |
2241 | default_index_pack_args); | |
726b25a9 JT |
2242 | |
2243 | if (preq->preserve_index_pack_stdout) | |
8d5d2a34 | 2244 | ip.out = 0; |
726b25a9 | 2245 | else |
8d5d2a34 | 2246 | ip.no_stdout = 1; |
fe72d420 SP |
2247 | |
2248 | if (run_command(&ip)) { | |
9cb3cab5 JT |
2249 | ret = -1; |
2250 | goto cleanup; | |
fe72d420 SP |
2251 | } |
2252 | ||
9cb3cab5 JT |
2253 | cleanup: |
2254 | close(tmpfile_fd); | |
2255 | unlink(preq->tmpfile.buf); | |
2256 | return ret; | |
2264dfa5 | 2257 | } |
2264dfa5 | 2258 | |
eb053492 JT |
2259 | void http_install_packfile(struct packed_git *p, |
2260 | struct packed_git **list_to_remove_from) | |
2261 | { | |
2262 | struct packed_git **lst = list_to_remove_from; | |
2263 | ||
2264 | while (*lst != p) | |
2265 | lst = &((*lst)->next); | |
2266 | *lst = (*lst)->next; | |
2264dfa5 | 2267 | |
5babff16 | 2268 | install_packed_git(the_repository, p); |
2264dfa5 TRC |
2269 | } |
2270 | ||
2271 | struct http_pack_request *new_http_pack_request( | |
8d5d2a34 JT |
2272 | const unsigned char *packed_git_hash, const char *base_url) { |
2273 | ||
2274 | struct strbuf buf = STRBUF_INIT; | |
2275 | ||
2276 | end_url_with_slash(&buf, base_url); | |
2277 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
2278 | hash_to_hex(packed_git_hash)); | |
2279 | return new_direct_http_pack_request(packed_git_hash, | |
2280 | strbuf_detach(&buf, NULL)); | |
2281 | } | |
2282 | ||
2283 | struct http_pack_request *new_direct_http_pack_request( | |
2284 | const unsigned char *packed_git_hash, char *url) | |
2264dfa5 | 2285 | { |
f8117f55 | 2286 | off_t prev_posn = 0; |
2264dfa5 TRC |
2287 | struct http_pack_request *preq; |
2288 | ||
ca56dadb | 2289 | CALLOC_ARRAY(preq, 1); |
390c6cbc | 2290 | strbuf_init(&preq->tmpfile, 0); |
2264dfa5 | 2291 | |
8d5d2a34 | 2292 | preq->url = url; |
2264dfa5 | 2293 | |
eb053492 | 2294 | strbuf_addf(&preq->tmpfile, "%s.temp", sha1_pack_name(packed_git_hash)); |
390c6cbc | 2295 | preq->packfile = fopen(preq->tmpfile.buf, "a"); |
2264dfa5 TRC |
2296 | if (!preq->packfile) { |
2297 | error("Unable to open local file %s for pack", | |
390c6cbc | 2298 | preq->tmpfile.buf); |
2264dfa5 TRC |
2299 | goto abort; |
2300 | } | |
2301 | ||
2302 | preq->slot = get_active_slot(); | |
8dda4cbd | 2303 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEDATA, preq->packfile); |
2264dfa5 | 2304 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); |
bb99190e | 2305 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
2306 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
2307 | no_pragma_header); | |
2308 | ||
2309 | /* | |
2310 | * If there is data present from a previous transfer attempt, | |
2311 | * resume where it left off | |
2312 | */ | |
f8117f55 | 2313 | prev_posn = ftello(preq->packfile); |
2264dfa5 TRC |
2314 | if (prev_posn>0) { |
2315 | if (http_is_verbose) | |
2316 | fprintf(stderr, | |
838ecf0b | 2317 | "Resuming fetch of pack %s at byte %"PRIuMAX"\n", |
eb053492 | 2318 | hash_to_hex(packed_git_hash), |
538b1523 | 2319 | (uintmax_t)prev_posn); |
835c4d36 | 2320 | http_opt_request_remainder(preq->slot->curl, prev_posn); |
2264dfa5 TRC |
2321 | } |
2322 | ||
2323 | return preq; | |
2324 | ||
2325 | abort: | |
390c6cbc | 2326 | strbuf_release(&preq->tmpfile); |
bb99190e | 2327 | free(preq->url); |
5ae9ebfd | 2328 | free(preq); |
2264dfa5 TRC |
2329 | return NULL; |
2330 | } | |
5424bc55 TRC |
2331 | |
2332 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 2333 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
2334 | void *data) |
2335 | { | |
2336 | unsigned char expn[4096]; | |
2337 | size_t size = eltsize * nmemb; | |
2338 | int posn = 0; | |
17966c0a EW |
2339 | struct http_object_request *freq = data; |
2340 | struct active_request_slot *slot = freq->slot; | |
2341 | ||
2342 | if (slot) { | |
2343 | CURLcode c = curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, | |
2344 | &slot->http_code); | |
2345 | if (c != CURLE_OK) | |
033abf97 | 2346 | BUG("curl_easy_getinfo for HTTP code failed: %s", |
17966c0a | 2347 | curl_easy_strerror(c)); |
3680f16f | 2348 | if (slot->http_code >= 300) |
5c3d5a38 | 2349 | return nmemb; |
17966c0a EW |
2350 | } |
2351 | ||
5424bc55 TRC |
2352 | do { |
2353 | ssize_t retval = xwrite(freq->localfile, | |
2354 | (char *) ptr + posn, size - posn); | |
2355 | if (retval < 0) | |
5c3d5a38 | 2356 | return posn / eltsize; |
5424bc55 TRC |
2357 | posn += retval; |
2358 | } while (posn < size); | |
2359 | ||
2360 | freq->stream.avail_in = size; | |
a04ff3ec | 2361 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
2362 | do { |
2363 | freq->stream.next_out = expn; | |
2364 | freq->stream.avail_out = sizeof(expn); | |
2365 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
eed0e60f | 2366 | the_hash_algo->update_fn(&freq->c, expn, |
2367 | sizeof(expn) - freq->stream.avail_out); | |
5424bc55 | 2368 | } while (freq->stream.avail_in && freq->zret == Z_OK); |
5c3d5a38 | 2369 | return nmemb; |
5424bc55 TRC |
2370 | } |
2371 | ||
2372 | struct http_object_request *new_http_object_request(const char *base_url, | |
f0be0db1 | 2373 | const struct object_id *oid) |
5424bc55 | 2374 | { |
f0be0db1 | 2375 | char *hex = oid_to_hex(oid); |
ea657730 | 2376 | struct strbuf filename = STRBUF_INIT; |
390c6cbc | 2377 | struct strbuf prevfile = STRBUF_INIT; |
5424bc55 | 2378 | int prevlocal; |
a04ff3ec | 2379 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 | 2380 | ssize_t prev_read = 0; |
f8117f55 | 2381 | off_t prev_posn = 0; |
5424bc55 TRC |
2382 | struct http_object_request *freq; |
2383 | ||
ca56dadb | 2384 | CALLOC_ARRAY(freq, 1); |
390c6cbc | 2385 | strbuf_init(&freq->tmpfile, 0); |
f0be0db1 | 2386 | oidcpy(&freq->oid, oid); |
5424bc55 TRC |
2387 | freq->localfile = -1; |
2388 | ||
514c5fdd | 2389 | loose_object_path(the_repository, &filename, oid); |
390c6cbc | 2390 | strbuf_addf(&freq->tmpfile, "%s.temp", filename.buf); |
5424bc55 | 2391 | |
390c6cbc JK |
2392 | strbuf_addf(&prevfile, "%s.prev", filename.buf); |
2393 | unlink_or_warn(prevfile.buf); | |
2394 | rename(freq->tmpfile.buf, prevfile.buf); | |
2395 | unlink_or_warn(freq->tmpfile.buf); | |
ea657730 | 2396 | strbuf_release(&filename); |
5424bc55 TRC |
2397 | |
2398 | if (freq->localfile != -1) | |
2399 | error("fd leakage in start: %d", freq->localfile); | |
390c6cbc | 2400 | freq->localfile = open(freq->tmpfile.buf, |
5424bc55 TRC |
2401 | O_WRONLY | O_CREAT | O_EXCL, 0666); |
2402 | /* | |
2403 | * This could have failed due to the "lazy directory creation"; | |
2404 | * try to mkdir the last path component. | |
2405 | */ | |
2406 | if (freq->localfile < 0 && errno == ENOENT) { | |
390c6cbc | 2407 | char *dir = strrchr(freq->tmpfile.buf, '/'); |
5424bc55 TRC |
2408 | if (dir) { |
2409 | *dir = 0; | |
390c6cbc | 2410 | mkdir(freq->tmpfile.buf, 0777); |
5424bc55 TRC |
2411 | *dir = '/'; |
2412 | } | |
390c6cbc | 2413 | freq->localfile = open(freq->tmpfile.buf, |
5424bc55 TRC |
2414 | O_WRONLY | O_CREAT | O_EXCL, 0666); |
2415 | } | |
2416 | ||
2417 | if (freq->localfile < 0) { | |
390c6cbc JK |
2418 | error_errno("Couldn't create temporary file %s", |
2419 | freq->tmpfile.buf); | |
5424bc55 TRC |
2420 | goto abort; |
2421 | } | |
2422 | ||
5424bc55 TRC |
2423 | git_inflate_init(&freq->stream); |
2424 | ||
eed0e60f | 2425 | the_hash_algo->init_fn(&freq->c); |
5424bc55 | 2426 | |
bb99190e | 2427 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
2428 | |
2429 | /* | |
2430 | * If a previous temp file is present, process what was already | |
2431 | * fetched. | |
2432 | */ | |
390c6cbc | 2433 | prevlocal = open(prevfile.buf, O_RDONLY); |
5424bc55 TRC |
2434 | if (prevlocal != -1) { |
2435 | do { | |
2436 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
2437 | if (prev_read>0) { | |
2438 | if (fwrite_sha1_file(prev_buf, | |
2439 | 1, | |
2440 | prev_read, | |
2441 | freq) == prev_read) { | |
2442 | prev_posn += prev_read; | |
2443 | } else { | |
2444 | prev_read = -1; | |
2445 | } | |
2446 | } | |
2447 | } while (prev_read > 0); | |
2448 | close(prevlocal); | |
2449 | } | |
390c6cbc JK |
2450 | unlink_or_warn(prevfile.buf); |
2451 | strbuf_release(&prevfile); | |
5424bc55 TRC |
2452 | |
2453 | /* | |
2454 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
2455 | * file; also rewind to the beginning of the local file. | |
2456 | */ | |
2457 | if (prev_read == -1) { | |
2458 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
2459 | git_inflate_init(&freq->stream); | |
eed0e60f | 2460 | the_hash_algo->init_fn(&freq->c); |
5424bc55 TRC |
2461 | if (prev_posn>0) { |
2462 | prev_posn = 0; | |
2463 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 2464 | if (ftruncate(freq->localfile, 0) < 0) { |
d2e255ee | 2465 | error_errno("Couldn't truncate temporary file %s", |
390c6cbc | 2466 | freq->tmpfile.buf); |
0c4f21e4 JL |
2467 | goto abort; |
2468 | } | |
5424bc55 TRC |
2469 | } |
2470 | } | |
2471 | ||
2472 | freq->slot = get_active_slot(); | |
2473 | ||
8dda4cbd | 2474 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEDATA, freq); |
17966c0a | 2475 | curl_easy_setopt(freq->slot->curl, CURLOPT_FAILONERROR, 0); |
5424bc55 TRC |
2476 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); |
2477 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 2478 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
2479 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
2480 | ||
2481 | /* | |
2482 | * If we have successfully processed data from a previous fetch | |
2483 | * attempt, only fetch the data we don't already have. | |
2484 | */ | |
2485 | if (prev_posn>0) { | |
2486 | if (http_is_verbose) | |
2487 | fprintf(stderr, | |
838ecf0b RJ |
2488 | "Resuming fetch of object %s at byte %"PRIuMAX"\n", |
2489 | hex, (uintmax_t)prev_posn); | |
835c4d36 | 2490 | http_opt_request_remainder(freq->slot->curl, prev_posn); |
5424bc55 TRC |
2491 | } |
2492 | ||
2493 | return freq; | |
2494 | ||
5424bc55 | 2495 | abort: |
390c6cbc | 2496 | strbuf_release(&prevfile); |
bb99190e | 2497 | free(freq->url); |
5424bc55 TRC |
2498 | free(freq); |
2499 | return NULL; | |
2500 | } | |
2501 | ||
2502 | void process_http_object_request(struct http_object_request *freq) | |
2503 | { | |
afe8a907 | 2504 | if (!freq->slot) |
5424bc55 TRC |
2505 | return; |
2506 | freq->curl_result = freq->slot->curl_result; | |
2507 | freq->http_code = freq->slot->http_code; | |
2508 | freq->slot = NULL; | |
2509 | } | |
2510 | ||
2511 | int finish_http_object_request(struct http_object_request *freq) | |
2512 | { | |
2513 | struct stat st; | |
ea657730 | 2514 | struct strbuf filename = STRBUF_INIT; |
5424bc55 TRC |
2515 | |
2516 | close(freq->localfile); | |
2517 | freq->localfile = -1; | |
2518 | ||
2519 | process_http_object_request(freq); | |
2520 | ||
2521 | if (freq->http_code == 416) { | |
bd757c18 | 2522 | warning("requested range invalid; we may already have all the data."); |
5424bc55 | 2523 | } else if (freq->curl_result != CURLE_OK) { |
390c6cbc | 2524 | if (stat(freq->tmpfile.buf, &st) == 0) |
5424bc55 | 2525 | if (st.st_size == 0) |
390c6cbc | 2526 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2527 | return -1; |
2528 | } | |
2529 | ||
2530 | git_inflate_end(&freq->stream); | |
5951bf46 | 2531 | the_hash_algo->final_oid_fn(&freq->real_oid, &freq->c); |
5424bc55 | 2532 | if (freq->zret != Z_STREAM_END) { |
390c6cbc | 2533 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2534 | return -1; |
2535 | } | |
f0be0db1 | 2536 | if (!oideq(&freq->oid, &freq->real_oid)) { |
390c6cbc | 2537 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2538 | return -1; |
2539 | } | |
514c5fdd | 2540 | loose_object_path(the_repository, &filename, &freq->oid); |
390c6cbc | 2541 | freq->rename = finalize_object_file(freq->tmpfile.buf, filename.buf); |
ea657730 | 2542 | strbuf_release(&filename); |
5424bc55 TRC |
2543 | |
2544 | return freq->rename; | |
2545 | } | |
2546 | ||
2547 | void abort_http_object_request(struct http_object_request *freq) | |
2548 | { | |
390c6cbc | 2549 | unlink_or_warn(freq->tmpfile.buf); |
5424bc55 TRC |
2550 | |
2551 | release_http_object_request(freq); | |
2552 | } | |
2553 | ||
2554 | void release_http_object_request(struct http_object_request *freq) | |
2555 | { | |
2556 | if (freq->localfile != -1) { | |
2557 | close(freq->localfile); | |
2558 | freq->localfile = -1; | |
2559 | } | |
ce528de0 | 2560 | FREE_AND_NULL(freq->url); |
afe8a907 | 2561 | if (freq->slot) { |
4b9fa0e3 TRC |
2562 | freq->slot->callback_func = NULL; |
2563 | freq->slot->callback_data = NULL; | |
2564 | release_active_slot(freq->slot); | |
2565 | freq->slot = NULL; | |
2566 | } | |
390c6cbc | 2567 | strbuf_release(&freq->tmpfile); |
5424bc55 | 2568 | } |