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Commit | Line | Data |
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29508e1e | 1 | #include "http.h" |
2264dfa5 | 2 | #include "pack.h" |
de1a2fdd | 3 | #include "sideband.h" |
fe72d420 | 4 | #include "run-command.h" |
f39f72d8 | 5 | #include "url.h" |
148bb6a7 | 6 | #include "credential.h" |
745c7c8e | 7 | #include "version.h" |
29508e1e | 8 | |
4251ccbd | 9 | int active_requests; |
e9176745 | 10 | int http_is_verbose; |
de1a2fdd | 11 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 12 | |
b8ac9230 MS |
13 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
14 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
15 | #endif | |
16 | ||
ad75ebe5 TRC |
17 | static int min_curl_sessions = 1; |
18 | static int curl_session_count; | |
29508e1e | 19 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
20 | static int max_requests = -1; |
21 | static CURLM *curlm; | |
29508e1e NH |
22 | #endif |
23 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 24 | static CURL *curl_default; |
29508e1e | 25 | #endif |
5424bc55 TRC |
26 | |
27 | #define PREV_BUF_SIZE 4096 | |
28 | #define RANGE_HEADER_SIZE 30 | |
29 | ||
29508e1e NH |
30 | char curl_errorstr[CURL_ERROR_SIZE]; |
31 | ||
cc3530e8 | 32 | static int curl_ssl_verify = -1; |
4251ccbd | 33 | static const char *ssl_cert; |
ef52aafa | 34 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 35 | static const char *ssl_key; |
29508e1e NH |
36 | #endif |
37 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 38 | static const char *ssl_capath; |
29508e1e | 39 | #endif |
4251ccbd | 40 | static const char *ssl_cainfo; |
cc3530e8 MH |
41 | static long curl_low_speed_limit = -1; |
42 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
43 | static int curl_ftp_no_epsv; |
44 | static const char *curl_http_proxy; | |
bcfb95dd | 45 | static const char *curl_cookie_file; |
148bb6a7 | 46 | static struct credential http_auth = CREDENTIAL_INIT; |
a4ddbc33 | 47 | static int http_proactive_auth; |
b1d1058c | 48 | static const char *user_agent; |
29508e1e | 49 | |
30dd9163 ML |
50 | #if LIBCURL_VERSION_NUM >= 0x071700 |
51 | /* Use CURLOPT_KEYPASSWD as is */ | |
52 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
53 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
54 | #else | |
55 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
56 | #endif | |
57 | ||
148bb6a7 | 58 | static struct credential cert_auth = CREDENTIAL_INIT; |
30dd9163 ML |
59 | static int ssl_cert_password_required; |
60 | ||
cc3530e8 | 61 | static struct curl_slist *pragma_header; |
5424bc55 | 62 | static struct curl_slist *no_pragma_header; |
e9176745 | 63 | |
4251ccbd | 64 | static struct active_request_slot *active_queue_head; |
29508e1e | 65 | |
a04ff3ec | 66 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
67 | { |
68 | size_t size = eltsize * nmemb; | |
f444e528 JH |
69 | struct buffer *buffer = buffer_; |
70 | ||
028c2976 MH |
71 | if (size > buffer->buf.len - buffer->posn) |
72 | size = buffer->buf.len - buffer->posn; | |
73 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 74 | buffer->posn += size; |
028c2976 | 75 | |
29508e1e NH |
76 | return size; |
77 | } | |
78 | ||
3944ba0c MS |
79 | #ifndef NO_CURL_IOCTL |
80 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
81 | { | |
82 | struct buffer *buffer = clientp; | |
83 | ||
84 | switch (cmd) { | |
85 | case CURLIOCMD_NOP: | |
86 | return CURLIOE_OK; | |
87 | ||
88 | case CURLIOCMD_RESTARTREAD: | |
89 | buffer->posn = 0; | |
90 | return CURLIOE_OK; | |
91 | ||
92 | default: | |
93 | return CURLIOE_UNKNOWNCMD; | |
94 | } | |
95 | } | |
96 | #endif | |
97 | ||
a04ff3ec | 98 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
99 | { |
100 | size_t size = eltsize * nmemb; | |
f444e528 JH |
101 | struct strbuf *buffer = buffer_; |
102 | ||
028c2976 | 103 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
104 | return size; |
105 | } | |
106 | ||
a04ff3ec | 107 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 108 | { |
29508e1e NH |
109 | return eltsize * nmemb; |
110 | } | |
111 | ||
29508e1e NH |
112 | #ifdef USE_CURL_MULTI |
113 | static void process_curl_messages(void) | |
114 | { | |
115 | int num_messages; | |
116 | struct active_request_slot *slot; | |
117 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
118 | ||
119 | while (curl_message != NULL) { | |
120 | if (curl_message->msg == CURLMSG_DONE) { | |
121 | int curl_result = curl_message->data.result; | |
122 | slot = active_queue_head; | |
123 | while (slot != NULL && | |
124 | slot->curl != curl_message->easy_handle) | |
125 | slot = slot->next; | |
126 | if (slot != NULL) { | |
127 | curl_multi_remove_handle(curlm, slot->curl); | |
128 | slot->curl_result = curl_result; | |
129 | finish_active_slot(slot); | |
130 | } else { | |
131 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
132 | } | |
133 | } else { | |
134 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
135 | (int)curl_message->msg); | |
136 | } | |
137 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
138 | } | |
139 | } | |
140 | #endif | |
141 | ||
ef90d6d4 | 142 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
143 | { |
144 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 145 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
146 | return 0; |
147 | } | |
7059cd99 JH |
148 | if (!strcmp("http.sslcert", var)) |
149 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 150 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
151 | if (!strcmp("http.sslkey", var)) |
152 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
153 | #endif |
154 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
155 | if (!strcmp("http.sslcapath", var)) |
156 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 157 | #endif |
7059cd99 JH |
158 | if (!strcmp("http.sslcainfo", var)) |
159 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 ML |
160 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
161 | if (git_config_bool(var, value)) | |
162 | ssl_cert_password_required = 1; | |
163 | return 0; | |
164 | } | |
ad75ebe5 TRC |
165 | if (!strcmp("http.minsessions", var)) { |
166 | min_curl_sessions = git_config_int(var, value); | |
167 | #ifndef USE_CURL_MULTI | |
168 | if (min_curl_sessions > 1) | |
169 | min_curl_sessions = 1; | |
170 | #endif | |
171 | return 0; | |
172 | } | |
a6080a0a | 173 | #ifdef USE_CURL_MULTI |
29508e1e | 174 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 175 | max_requests = git_config_int(var, value); |
29508e1e NH |
176 | return 0; |
177 | } | |
178 | #endif | |
29508e1e | 179 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 180 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
181 | return 0; |
182 | } | |
183 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 184 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
185 | return 0; |
186 | } | |
187 | ||
3ea099d4 SK |
188 | if (!strcmp("http.noepsv", var)) { |
189 | curl_ftp_no_epsv = git_config_bool(var, value); | |
190 | return 0; | |
191 | } | |
7059cd99 JH |
192 | if (!strcmp("http.proxy", var)) |
193 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 194 | |
bcfb95dd DB |
195 | if (!strcmp("http.cookiefile", var)) |
196 | return git_config_string(&curl_cookie_file, var, value); | |
197 | ||
de1a2fdd SP |
198 | if (!strcmp("http.postbuffer", var)) { |
199 | http_post_buffer = git_config_int(var, value); | |
200 | if (http_post_buffer < LARGE_PACKET_MAX) | |
201 | http_post_buffer = LARGE_PACKET_MAX; | |
202 | return 0; | |
203 | } | |
204 | ||
b1d1058c SO |
205 | if (!strcmp("http.useragent", var)) |
206 | return git_config_string(&user_agent, var, value); | |
207 | ||
29508e1e | 208 | /* Fall back on the default ones */ |
ef90d6d4 | 209 | return git_default_config(var, value, cb); |
29508e1e NH |
210 | } |
211 | ||
c33976cb JH |
212 | static void init_curl_http_auth(CURL *result) |
213 | { | |
6f4c347c JK |
214 | if (!http_auth.username) |
215 | return; | |
216 | ||
217 | credential_fill(&http_auth); | |
218 | ||
219 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
220 | curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username); | |
221 | curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password); | |
222 | #else | |
223 | { | |
aa0834a0 | 224 | static struct strbuf up = STRBUF_INIT; |
aa0834a0 | 225 | strbuf_reset(&up); |
148bb6a7 JK |
226 | strbuf_addf(&up, "%s:%s", |
227 | http_auth.username, http_auth.password); | |
aa0834a0 | 228 | curl_easy_setopt(result, CURLOPT_USERPWD, up.buf); |
c33976cb | 229 | } |
6f4c347c | 230 | #endif |
c33976cb JH |
231 | } |
232 | ||
30dd9163 ML |
233 | static int has_cert_password(void) |
234 | { | |
30dd9163 ML |
235 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
236 | return 0; | |
148bb6a7 JK |
237 | if (!cert_auth.password) { |
238 | cert_auth.protocol = xstrdup("cert"); | |
239 | cert_auth.path = xstrdup(ssl_cert); | |
240 | credential_fill(&cert_auth); | |
241 | } | |
242 | return 1; | |
30dd9163 ML |
243 | } |
244 | ||
4251ccbd | 245 | static CURL *get_curl_handle(void) |
11979b98 | 246 | { |
4251ccbd | 247 | CURL *result = curl_easy_init(); |
11979b98 | 248 | |
a5ccc597 JH |
249 | if (!curl_ssl_verify) { |
250 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
251 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
252 | } else { | |
253 | /* Verify authenticity of the peer's certificate */ | |
254 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
255 | /* The name in the cert must match whom we tried to connect */ | |
256 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
257 | } | |
258 | ||
11979b98 JH |
259 | #if LIBCURL_VERSION_NUM >= 0x070907 |
260 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
261 | #endif | |
b8ac9230 | 262 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 263 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 264 | #endif |
11979b98 | 265 | |
a4ddbc33 JK |
266 | if (http_proactive_auth) |
267 | init_curl_http_auth(result); | |
268 | ||
11979b98 JH |
269 | if (ssl_cert != NULL) |
270 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 | 271 | if (has_cert_password()) |
148bb6a7 | 272 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
ef52aafa | 273 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
274 | if (ssl_key != NULL) |
275 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
276 | #endif | |
277 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
278 | if (ssl_capath != NULL) | |
279 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
280 | #endif | |
281 | if (ssl_cainfo != NULL) | |
282 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
283 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
284 | ||
285 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
286 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
287 | curl_low_speed_limit); | |
288 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
289 | curl_low_speed_time); | |
290 | } | |
291 | ||
292 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
293 | #if LIBCURL_VERSION_NUM >= 0x071301 |
294 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
295 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
296 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
297 | #endif | |
11979b98 | 298 | |
7982d74e MW |
299 | if (getenv("GIT_CURL_VERBOSE")) |
300 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
301 | ||
b1d1058c | 302 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
745c7c8e | 303 | user_agent ? user_agent : git_user_agent()); |
20fc9bc5 | 304 | |
3ea099d4 SK |
305 | if (curl_ftp_no_epsv) |
306 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
307 | ||
dd613997 | 308 | if (curl_http_proxy) { |
9c5665aa | 309 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); |
dd613997 NBL |
310 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); |
311 | } | |
9c5665aa | 312 | |
11979b98 JH |
313 | return result; |
314 | } | |
315 | ||
7059cd99 JH |
316 | static void set_from_env(const char **var, const char *envname) |
317 | { | |
318 | const char *val = getenv(envname); | |
319 | if (val) | |
320 | *var = val; | |
321 | } | |
322 | ||
a4ddbc33 | 323 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
324 | { |
325 | char *low_speed_limit; | |
326 | char *low_speed_time; | |
327 | ||
e9176745 TRC |
328 | http_is_verbose = 0; |
329 | ||
7059cd99 JH |
330 | git_config(http_options, NULL); |
331 | ||
29508e1e NH |
332 | curl_global_init(CURL_GLOBAL_ALL); |
333 | ||
a4ddbc33 JK |
334 | http_proactive_auth = proactive_auth; |
335 | ||
9fc6440d MH |
336 | if (remote && remote->http_proxy) |
337 | curl_http_proxy = xstrdup(remote->http_proxy); | |
338 | ||
29508e1e | 339 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 340 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
341 | |
342 | #ifdef USE_CURL_MULTI | |
343 | { | |
344 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
345 | if (http_max_requests != NULL) | |
346 | max_requests = atoi(http_max_requests); | |
347 | } | |
348 | ||
349 | curlm = curl_multi_init(); | |
350 | if (curlm == NULL) { | |
351 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
352 | exit(1); | |
353 | } | |
354 | #endif | |
355 | ||
356 | if (getenv("GIT_SSL_NO_VERIFY")) | |
357 | curl_ssl_verify = 0; | |
358 | ||
7059cd99 | 359 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 360 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 361 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
362 | #endif |
363 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 364 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 365 | #endif |
7059cd99 | 366 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 367 | |
b1d1058c SO |
368 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
369 | ||
29508e1e NH |
370 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
371 | if (low_speed_limit != NULL) | |
372 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
373 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
374 | if (low_speed_time != NULL) | |
375 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
376 | ||
29508e1e NH |
377 | if (curl_ssl_verify == -1) |
378 | curl_ssl_verify = 1; | |
379 | ||
ad75ebe5 | 380 | curl_session_count = 0; |
29508e1e NH |
381 | #ifdef USE_CURL_MULTI |
382 | if (max_requests < 1) | |
383 | max_requests = DEFAULT_MAX_REQUESTS; | |
384 | #endif | |
385 | ||
3ea099d4 SK |
386 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
387 | curl_ftp_no_epsv = 1; | |
388 | ||
deba4937 | 389 | if (url) { |
148bb6a7 | 390 | credential_from_url(&http_auth, url); |
754ae192 ML |
391 | if (!ssl_cert_password_required && |
392 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
deba4937 | 393 | !prefixcmp(url, "https://")) |
30dd9163 ML |
394 | ssl_cert_password_required = 1; |
395 | } | |
c33976cb | 396 | |
29508e1e NH |
397 | #ifndef NO_CURL_EASY_DUPHANDLE |
398 | curl_default = get_curl_handle(); | |
399 | #endif | |
400 | } | |
401 | ||
402 | void http_cleanup(void) | |
403 | { | |
404 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
405 | |
406 | while (slot != NULL) { | |
3278cd0a | 407 | struct active_request_slot *next = slot->next; |
f23d1f76 | 408 | if (slot->curl != NULL) { |
29508e1e | 409 | #ifdef USE_CURL_MULTI |
f23d1f76 | 410 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 411 | #endif |
29508e1e | 412 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 413 | } |
3278cd0a SP |
414 | free(slot); |
415 | slot = next; | |
29508e1e | 416 | } |
3278cd0a | 417 | active_queue_head = NULL; |
29508e1e NH |
418 | |
419 | #ifndef NO_CURL_EASY_DUPHANDLE | |
420 | curl_easy_cleanup(curl_default); | |
421 | #endif | |
422 | ||
423 | #ifdef USE_CURL_MULTI | |
424 | curl_multi_cleanup(curlm); | |
425 | #endif | |
426 | curl_global_cleanup(); | |
b3ca4e4e NH |
427 | |
428 | curl_slist_free_all(pragma_header); | |
3278cd0a | 429 | pragma_header = NULL; |
9fc6440d | 430 | |
e9176745 TRC |
431 | curl_slist_free_all(no_pragma_header); |
432 | no_pragma_header = NULL; | |
433 | ||
9fc6440d | 434 | if (curl_http_proxy) { |
e4a80ecf | 435 | free((void *)curl_http_proxy); |
9fc6440d MH |
436 | curl_http_proxy = NULL; |
437 | } | |
30dd9163 | 438 | |
148bb6a7 JK |
439 | if (cert_auth.password != NULL) { |
440 | memset(cert_auth.password, 0, strlen(cert_auth.password)); | |
441 | free(cert_auth.password); | |
442 | cert_auth.password = NULL; | |
30dd9163 ML |
443 | } |
444 | ssl_cert_password_required = 0; | |
29508e1e NH |
445 | } |
446 | ||
29508e1e NH |
447 | struct active_request_slot *get_active_slot(void) |
448 | { | |
449 | struct active_request_slot *slot = active_queue_head; | |
450 | struct active_request_slot *newslot; | |
451 | ||
452 | #ifdef USE_CURL_MULTI | |
453 | int num_transfers; | |
454 | ||
455 | /* Wait for a slot to open up if the queue is full */ | |
456 | while (active_requests >= max_requests) { | |
457 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 458 | if (num_transfers < active_requests) |
29508e1e | 459 | process_curl_messages(); |
29508e1e NH |
460 | } |
461 | #endif | |
462 | ||
4251ccbd | 463 | while (slot != NULL && slot->in_use) |
29508e1e | 464 | slot = slot->next; |
4251ccbd | 465 | |
29508e1e NH |
466 | if (slot == NULL) { |
467 | newslot = xmalloc(sizeof(*newslot)); | |
468 | newslot->curl = NULL; | |
469 | newslot->in_use = 0; | |
470 | newslot->next = NULL; | |
471 | ||
472 | slot = active_queue_head; | |
473 | if (slot == NULL) { | |
474 | active_queue_head = newslot; | |
475 | } else { | |
4251ccbd | 476 | while (slot->next != NULL) |
29508e1e | 477 | slot = slot->next; |
29508e1e NH |
478 | slot->next = newslot; |
479 | } | |
480 | slot = newslot; | |
481 | } | |
482 | ||
483 | if (slot->curl == NULL) { | |
484 | #ifdef NO_CURL_EASY_DUPHANDLE | |
485 | slot->curl = get_curl_handle(); | |
486 | #else | |
487 | slot->curl = curl_easy_duphandle(curl_default); | |
488 | #endif | |
ad75ebe5 | 489 | curl_session_count++; |
29508e1e NH |
490 | } |
491 | ||
492 | active_requests++; | |
493 | slot->in_use = 1; | |
c8568e13 | 494 | slot->results = NULL; |
baa7b67d | 495 | slot->finished = NULL; |
29508e1e NH |
496 | slot->callback_data = NULL; |
497 | slot->callback_func = NULL; | |
bcfb95dd | 498 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
29508e1e | 499 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 500 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
501 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
502 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
503 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 504 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
505 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
506 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
dfa1725a JK |
507 | if (http_auth.password) |
508 | init_curl_http_auth(slot->curl); | |
29508e1e NH |
509 | |
510 | return slot; | |
511 | } | |
512 | ||
513 | int start_active_slot(struct active_request_slot *slot) | |
514 | { | |
515 | #ifdef USE_CURL_MULTI | |
516 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 517 | int num_transfers; |
29508e1e NH |
518 | |
519 | if (curlm_result != CURLM_OK && | |
520 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
521 | active_requests--; | |
522 | slot->in_use = 0; | |
523 | return 0; | |
524 | } | |
45c17412 DB |
525 | |
526 | /* | |
527 | * We know there must be something to do, since we just added | |
528 | * something. | |
529 | */ | |
530 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
531 | #endif |
532 | return 1; | |
533 | } | |
534 | ||
535 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
536 | struct fill_chain { |
537 | void *data; | |
538 | int (*fill)(void *); | |
539 | struct fill_chain *next; | |
540 | }; | |
541 | ||
4251ccbd | 542 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
543 | |
544 | void add_fill_function(void *data, int (*fill)(void *)) | |
545 | { | |
e8eec71d | 546 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
547 | struct fill_chain **linkp = &fill_cfg; |
548 | new->data = data; | |
549 | new->fill = fill; | |
550 | new->next = NULL; | |
551 | while (*linkp) | |
552 | linkp = &(*linkp)->next; | |
553 | *linkp = new; | |
554 | } | |
555 | ||
45c17412 DB |
556 | void fill_active_slots(void) |
557 | { | |
558 | struct active_request_slot *slot = active_queue_head; | |
559 | ||
fc57b6aa DB |
560 | while (active_requests < max_requests) { |
561 | struct fill_chain *fill; | |
562 | for (fill = fill_cfg; fill; fill = fill->next) | |
563 | if (fill->fill(fill->data)) | |
564 | break; | |
565 | ||
566 | if (!fill) | |
45c17412 | 567 | break; |
fc57b6aa | 568 | } |
45c17412 DB |
569 | |
570 | while (slot != NULL) { | |
ad75ebe5 TRC |
571 | if (!slot->in_use && slot->curl != NULL |
572 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
573 | curl_easy_cleanup(slot->curl); |
574 | slot->curl = NULL; | |
ad75ebe5 | 575 | curl_session_count--; |
45c17412 DB |
576 | } |
577 | slot = slot->next; | |
578 | } | |
579 | } | |
580 | ||
29508e1e NH |
581 | void step_active_slots(void) |
582 | { | |
583 | int num_transfers; | |
584 | CURLMcode curlm_result; | |
585 | ||
586 | do { | |
587 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
588 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
589 | if (num_transfers < active_requests) { | |
590 | process_curl_messages(); | |
591 | fill_active_slots(); | |
592 | } | |
593 | } | |
594 | #endif | |
595 | ||
596 | void run_active_slot(struct active_request_slot *slot) | |
597 | { | |
598 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
599 | fd_set readfds; |
600 | fd_set writefds; | |
601 | fd_set excfds; | |
602 | int max_fd; | |
603 | struct timeval select_timeout; | |
baa7b67d | 604 | int finished = 0; |
29508e1e | 605 | |
baa7b67d NH |
606 | slot->finished = &finished; |
607 | while (!finished) { | |
29508e1e NH |
608 | step_active_slots(); |
609 | ||
df26c471 | 610 | if (slot->in_use) { |
eb56c821 MF |
611 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
612 | long curl_timeout; | |
613 | curl_multi_timeout(curlm, &curl_timeout); | |
614 | if (curl_timeout == 0) { | |
615 | continue; | |
616 | } else if (curl_timeout == -1) { | |
617 | select_timeout.tv_sec = 0; | |
618 | select_timeout.tv_usec = 50000; | |
619 | } else { | |
620 | select_timeout.tv_sec = curl_timeout / 1000; | |
621 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
622 | } | |
623 | #else | |
624 | select_timeout.tv_sec = 0; | |
625 | select_timeout.tv_usec = 50000; | |
626 | #endif | |
29508e1e | 627 | |
6f9dd67f | 628 | max_fd = -1; |
29508e1e NH |
629 | FD_ZERO(&readfds); |
630 | FD_ZERO(&writefds); | |
631 | FD_ZERO(&excfds); | |
6f9dd67f | 632 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 633 | |
7202b81f SZ |
634 | /* |
635 | * It can happen that curl_multi_timeout returns a pathologically | |
636 | * long timeout when curl_multi_fdset returns no file descriptors | |
637 | * to read. See commit message for more details. | |
638 | */ | |
639 | if (max_fd < 0 && | |
640 | (select_timeout.tv_sec > 0 || | |
641 | select_timeout.tv_usec > 50000)) { | |
642 | select_timeout.tv_sec = 0; | |
643 | select_timeout.tv_usec = 50000; | |
644 | } | |
645 | ||
6f9dd67f | 646 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
647 | } |
648 | } | |
649 | #else | |
650 | while (slot->in_use) { | |
651 | slot->curl_result = curl_easy_perform(slot->curl); | |
652 | finish_active_slot(slot); | |
653 | } | |
654 | #endif | |
655 | } | |
656 | ||
53f31389 | 657 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 658 | { |
028c2976 MH |
659 | active_requests--; |
660 | slot->in_use = 0; | |
53f31389 MW |
661 | } |
662 | ||
83e41e2e | 663 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
664 | { |
665 | closedown_active_slot(slot); | |
ad75ebe5 | 666 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 667 | #ifdef USE_CURL_MULTI |
53f31389 | 668 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 669 | #endif |
53f31389 MW |
670 | curl_easy_cleanup(slot->curl); |
671 | slot->curl = NULL; | |
ad75ebe5 | 672 | curl_session_count--; |
53f31389 | 673 | } |
b3ca4e4e | 674 | #ifdef USE_CURL_MULTI |
53f31389 | 675 | fill_active_slots(); |
b3ca4e4e | 676 | #endif |
53f31389 MW |
677 | } |
678 | ||
de1a2fdd | 679 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
680 | { |
681 | closedown_active_slot(slot); | |
028c2976 | 682 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 683 | |
baa7b67d NH |
684 | if (slot->finished != NULL) |
685 | (*slot->finished) = 1; | |
686 | ||
c8568e13 NH |
687 | /* Store slot results so they can be read after the slot is reused */ |
688 | if (slot->results != NULL) { | |
689 | slot->results->curl_result = slot->curl_result; | |
690 | slot->results->http_code = slot->http_code; | |
691 | } | |
692 | ||
028c2976 | 693 | /* Run callback if appropriate */ |
4251ccbd | 694 | if (slot->callback_func != NULL) |
028c2976 | 695 | slot->callback_func(slot->callback_data); |
29508e1e NH |
696 | } |
697 | ||
698 | void finish_all_active_slots(void) | |
699 | { | |
700 | struct active_request_slot *slot = active_queue_head; | |
701 | ||
702 | while (slot != NULL) | |
703 | if (slot->in_use) { | |
704 | run_active_slot(slot); | |
705 | slot = active_queue_head; | |
706 | } else { | |
707 | slot = slot->next; | |
708 | } | |
709 | } | |
d7e92806 | 710 | |
5ace994f | 711 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
712 | static inline int needs_quote(int ch) |
713 | { | |
714 | if (((ch >= 'A') && (ch <= 'Z')) | |
715 | || ((ch >= 'a') && (ch <= 'z')) | |
716 | || ((ch >= '0') && (ch <= '9')) | |
717 | || (ch == '/') | |
718 | || (ch == '-') | |
719 | || (ch == '.')) | |
720 | return 0; | |
721 | return 1; | |
722 | } | |
723 | ||
d7e92806 MH |
724 | static char *quote_ref_url(const char *base, const char *ref) |
725 | { | |
113106e0 | 726 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 727 | const char *cp; |
113106e0 | 728 | int ch; |
d7e92806 | 729 | |
5ace994f | 730 | end_url_with_slash(&buf, base); |
113106e0 TRC |
731 | |
732 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 733 | if (needs_quote(ch)) |
113106e0 | 734 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 735 | else |
113106e0 | 736 | strbuf_addch(&buf, *cp); |
d7e92806 | 737 | |
113106e0 | 738 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
739 | } |
740 | ||
5424bc55 TRC |
741 | void append_remote_object_url(struct strbuf *buf, const char *url, |
742 | const char *hex, | |
743 | int only_two_digit_prefix) | |
744 | { | |
800324c3 TRC |
745 | end_url_with_slash(buf, url); |
746 | ||
747 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
748 | if (!only_two_digit_prefix) |
749 | strbuf_addf(buf, "%s", hex+2); | |
750 | } | |
751 | ||
752 | char *get_remote_object_url(const char *url, const char *hex, | |
753 | int only_two_digit_prefix) | |
754 | { | |
755 | struct strbuf buf = STRBUF_INIT; | |
756 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
757 | return strbuf_detach(&buf, NULL); | |
758 | } | |
759 | ||
1960897e | 760 | int handle_curl_result(struct slot_results *results) |
88097030 | 761 | { |
88097030 JK |
762 | if (results->curl_result == CURLE_OK) { |
763 | credential_approve(&http_auth); | |
764 | return HTTP_OK; | |
765 | } else if (missing_target(results)) | |
766 | return HTTP_MISSING_TARGET; | |
767 | else if (results->http_code == 401) { | |
768 | if (http_auth.username && http_auth.password) { | |
769 | credential_reject(&http_auth); | |
770 | return HTTP_NOAUTH; | |
771 | } else { | |
772 | credential_fill(&http_auth); | |
88097030 JK |
773 | return HTTP_REAUTH; |
774 | } | |
775 | } else { | |
3503e9ab | 776 | #if LIBCURL_VERSION_NUM >= 0x070c00 |
88097030 JK |
777 | if (!curl_errorstr[0]) |
778 | strlcpy(curl_errorstr, | |
779 | curl_easy_strerror(results->curl_result), | |
780 | sizeof(curl_errorstr)); | |
3503e9ab | 781 | #endif |
88097030 JK |
782 | return HTTP_ERROR; |
783 | } | |
784 | } | |
785 | ||
e929cd20 MH |
786 | /* http_request() targets */ |
787 | #define HTTP_REQUEST_STRBUF 0 | |
788 | #define HTTP_REQUEST_FILE 1 | |
789 | ||
790 | static int http_request(const char *url, void *result, int target, int options) | |
791 | { | |
792 | struct active_request_slot *slot; | |
793 | struct slot_results results; | |
794 | struct curl_slist *headers = NULL; | |
795 | struct strbuf buf = STRBUF_INIT; | |
796 | int ret; | |
797 | ||
798 | slot = get_active_slot(); | |
799 | slot->results = &results; | |
800 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
801 | ||
802 | if (result == NULL) { | |
803 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
804 | } else { | |
805 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
806 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
807 | ||
808 | if (target == HTTP_REQUEST_FILE) { | |
809 | long posn = ftell(result); | |
810 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
811 | fwrite); | |
812 | if (posn > 0) { | |
813 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
814 | headers = curl_slist_append(headers, buf.buf); | |
815 | strbuf_reset(&buf); | |
816 | } | |
e929cd20 MH |
817 | } else |
818 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
819 | fwrite_buffer); | |
820 | } | |
821 | ||
822 | strbuf_addstr(&buf, "Pragma:"); | |
823 | if (options & HTTP_NO_CACHE) | |
824 | strbuf_addstr(&buf, " no-cache"); | |
825 | ||
826 | headers = curl_slist_append(headers, buf.buf); | |
827 | ||
828 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
829 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
aa90b969 | 830 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
e929cd20 MH |
831 | |
832 | if (start_active_slot(slot)) { | |
833 | run_active_slot(slot); | |
1960897e | 834 | ret = handle_curl_result(&results); |
e929cd20 MH |
835 | } else { |
836 | error("Unable to start HTTP request for %s", url); | |
837 | ret = HTTP_START_FAILED; | |
838 | } | |
839 | ||
e929cd20 MH |
840 | curl_slist_free_all(headers); |
841 | strbuf_release(&buf); | |
842 | ||
843 | return ret; | |
844 | } | |
845 | ||
8d677edc JK |
846 | static int http_request_reauth(const char *url, void *result, int target, |
847 | int options) | |
848 | { | |
849 | int ret = http_request(url, result, target, options); | |
850 | if (ret != HTTP_REAUTH) | |
851 | return ret; | |
852 | return http_request(url, result, target, options); | |
853 | } | |
854 | ||
e929cd20 MH |
855 | int http_get_strbuf(const char *url, struct strbuf *result, int options) |
856 | { | |
8d677edc | 857 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
858 | } |
859 | ||
83e41e2e | 860 | /* |
a7793a74 | 861 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
862 | * |
863 | * If a previous interrupted download is detected (i.e. a previous temporary | |
864 | * file is still around) the download is resumed. | |
865 | */ | |
866 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
867 | { |
868 | int ret; | |
869 | struct strbuf tmpfile = STRBUF_INIT; | |
870 | FILE *result; | |
871 | ||
872 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
873 | result = fopen(tmpfile.buf, "a"); | |
874 | if (! result) { | |
875 | error("Unable to open local file %s", tmpfile.buf); | |
876 | ret = HTTP_ERROR; | |
877 | goto cleanup; | |
878 | } | |
879 | ||
8d677edc | 880 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
881 | fclose(result); |
882 | ||
883 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
884 | ret = HTTP_ERROR; | |
885 | cleanup: | |
886 | strbuf_release(&tmpfile); | |
887 | return ret; | |
888 | } | |
889 | ||
890 | int http_error(const char *url, int ret) | |
891 | { | |
892 | /* http_request has already handled HTTP_START_FAILED. */ | |
893 | if (ret != HTTP_START_FAILED) | |
8abc5082 | 894 | error("%s while accessing %s", curl_errorstr, url); |
e929cd20 MH |
895 | |
896 | return ret; | |
897 | } | |
898 | ||
c13b2633 | 899 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
900 | { |
901 | char *url; | |
902 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 903 | int ret = -1; |
d7e92806 | 904 | |
c13b2633 | 905 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
906 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
907 | strbuf_rtrim(&buffer); | |
908 | if (buffer.len == 40) | |
909 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
910 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
911 | ref->symref = xstrdup(buffer.buf + 5); | |
912 | ret = 0; | |
d7e92806 | 913 | } |
d7e92806 MH |
914 | } |
915 | ||
916 | strbuf_release(&buffer); | |
917 | free(url); | |
918 | return ret; | |
919 | } | |
b8caac2b TRC |
920 | |
921 | /* Helpers for fetching packs */ | |
750ef425 | 922 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 923 | { |
750ef425 | 924 | char *url, *tmp; |
b8caac2b | 925 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 926 | |
b8caac2b | 927 | if (http_is_verbose) |
162eb5f8 | 928 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
929 | |
930 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 931 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
932 | url = strbuf_detach(&buf, NULL); |
933 | ||
750ef425 SP |
934 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
935 | tmp = strbuf_detach(&buf, NULL); | |
936 | ||
937 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
82247e9b | 938 | error("Unable to get pack index %s", url); |
750ef425 SP |
939 | free(tmp); |
940 | tmp = NULL; | |
941 | } | |
b8caac2b | 942 | |
b8caac2b | 943 | free(url); |
750ef425 | 944 | return tmp; |
b8caac2b TRC |
945 | } |
946 | ||
947 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
948 | unsigned char *sha1, const char *base_url) | |
949 | { | |
950 | struct packed_git *new_pack; | |
750ef425 SP |
951 | char *tmp_idx = NULL; |
952 | int ret; | |
b8caac2b | 953 | |
750ef425 SP |
954 | if (has_pack_index(sha1)) { |
955 | new_pack = parse_pack_index(sha1, NULL); | |
956 | if (!new_pack) | |
957 | return -1; /* parse_pack_index() already issued error message */ | |
958 | goto add_pack; | |
959 | } | |
960 | ||
961 | tmp_idx = fetch_pack_index(sha1, base_url); | |
962 | if (!tmp_idx) | |
b8caac2b TRC |
963 | return -1; |
964 | ||
750ef425 SP |
965 | new_pack = parse_pack_index(sha1, tmp_idx); |
966 | if (!new_pack) { | |
967 | unlink(tmp_idx); | |
968 | free(tmp_idx); | |
969 | ||
b8caac2b | 970 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
971 | } |
972 | ||
973 | ret = verify_pack_index(new_pack); | |
974 | if (!ret) { | |
975 | close_pack_index(new_pack); | |
976 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
977 | } | |
978 | free(tmp_idx); | |
979 | if (ret) | |
980 | return -1; | |
981 | ||
982 | add_pack: | |
b8caac2b TRC |
983 | new_pack->next = *packs_head; |
984 | *packs_head = new_pack; | |
985 | return 0; | |
986 | } | |
987 | ||
988 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
989 | { | |
990 | int ret = 0, i = 0; | |
991 | char *url, *data; | |
992 | struct strbuf buf = STRBUF_INIT; | |
993 | unsigned char sha1[20]; | |
994 | ||
995 | end_url_with_slash(&buf, base_url); | |
996 | strbuf_addstr(&buf, "objects/info/packs"); | |
997 | url = strbuf_detach(&buf, NULL); | |
998 | ||
999 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
1000 | if (ret != HTTP_OK) | |
1001 | goto cleanup; | |
1002 | ||
1003 | data = buf.buf; | |
1004 | while (i < buf.len) { | |
1005 | switch (data[i]) { | |
1006 | case 'P': | |
1007 | i++; | |
1008 | if (i + 52 <= buf.len && | |
1009 | !prefixcmp(data + i, " pack-") && | |
1010 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1011 | get_sha1_hex(data + i + 6, sha1); | |
1012 | fetch_and_setup_pack_index(packs_head, sha1, | |
1013 | base_url); | |
1014 | i += 51; | |
1015 | break; | |
1016 | } | |
1017 | default: | |
1018 | while (i < buf.len && data[i] != '\n') | |
1019 | i++; | |
1020 | } | |
1021 | i++; | |
1022 | } | |
1023 | ||
1024 | cleanup: | |
1025 | free(url); | |
1026 | return ret; | |
1027 | } | |
2264dfa5 TRC |
1028 | |
1029 | void release_http_pack_request(struct http_pack_request *preq) | |
1030 | { | |
1031 | if (preq->packfile != NULL) { | |
1032 | fclose(preq->packfile); | |
1033 | preq->packfile = NULL; | |
2264dfa5 TRC |
1034 | } |
1035 | if (preq->range_header != NULL) { | |
1036 | curl_slist_free_all(preq->range_header); | |
1037 | preq->range_header = NULL; | |
1038 | } | |
1039 | preq->slot = NULL; | |
1040 | free(preq->url); | |
1041 | } | |
1042 | ||
1043 | int finish_http_pack_request(struct http_pack_request *preq) | |
1044 | { | |
2264dfa5 | 1045 | struct packed_git **lst; |
021ab6f0 | 1046 | struct packed_git *p = preq->target; |
fe72d420 SP |
1047 | char *tmp_idx; |
1048 | struct child_process ip; | |
1049 | const char *ip_argv[8]; | |
2264dfa5 | 1050 | |
fe72d420 | 1051 | close_pack_index(p); |
2264dfa5 | 1052 | |
3065274c SP |
1053 | fclose(preq->packfile); |
1054 | preq->packfile = NULL; | |
2264dfa5 TRC |
1055 | |
1056 | lst = preq->lst; | |
021ab6f0 | 1057 | while (*lst != p) |
2264dfa5 TRC |
1058 | lst = &((*lst)->next); |
1059 | *lst = (*lst)->next; | |
1060 | ||
fe72d420 SP |
1061 | tmp_idx = xstrdup(preq->tmpfile); |
1062 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1063 | ".idx.temp"); | |
1064 | ||
1065 | ip_argv[0] = "index-pack"; | |
1066 | ip_argv[1] = "-o"; | |
1067 | ip_argv[2] = tmp_idx; | |
1068 | ip_argv[3] = preq->tmpfile; | |
1069 | ip_argv[4] = NULL; | |
1070 | ||
1071 | memset(&ip, 0, sizeof(ip)); | |
1072 | ip.argv = ip_argv; | |
1073 | ip.git_cmd = 1; | |
1074 | ip.no_stdin = 1; | |
1075 | ip.no_stdout = 1; | |
1076 | ||
1077 | if (run_command(&ip)) { | |
1078 | unlink(preq->tmpfile); | |
1079 | unlink(tmp_idx); | |
1080 | free(tmp_idx); | |
2264dfa5 | 1081 | return -1; |
fe72d420 SP |
1082 | } |
1083 | ||
1084 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1085 | |
fe72d420 SP |
1086 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1087 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1088 | free(tmp_idx); | |
2264dfa5 | 1089 | return -1; |
fe72d420 | 1090 | } |
2264dfa5 | 1091 | |
fe72d420 SP |
1092 | install_packed_git(p); |
1093 | free(tmp_idx); | |
2264dfa5 TRC |
1094 | return 0; |
1095 | } | |
1096 | ||
1097 | struct http_pack_request *new_http_pack_request( | |
1098 | struct packed_git *target, const char *base_url) | |
1099 | { | |
2264dfa5 TRC |
1100 | long prev_posn = 0; |
1101 | char range[RANGE_HEADER_SIZE]; | |
1102 | struct strbuf buf = STRBUF_INIT; | |
1103 | struct http_pack_request *preq; | |
1104 | ||
ec99c9a8 | 1105 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1106 | preq->target = target; |
2264dfa5 TRC |
1107 | |
1108 | end_url_with_slash(&buf, base_url); | |
1109 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1110 | sha1_to_hex(target->sha1)); | |
bb99190e | 1111 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1112 | |
90d05713 TRC |
1113 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1114 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1115 | preq->packfile = fopen(preq->tmpfile, "a"); |
1116 | if (!preq->packfile) { | |
1117 | error("Unable to open local file %s for pack", | |
1118 | preq->tmpfile); | |
1119 | goto abort; | |
1120 | } | |
1121 | ||
1122 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
1123 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
1124 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1125 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1126 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1127 | no_pragma_header); | |
1128 | ||
1129 | /* | |
1130 | * If there is data present from a previous transfer attempt, | |
1131 | * resume where it left off | |
1132 | */ | |
1133 | prev_posn = ftell(preq->packfile); | |
1134 | if (prev_posn>0) { | |
1135 | if (http_is_verbose) | |
1136 | fprintf(stderr, | |
1137 | "Resuming fetch of pack %s at byte %ld\n", | |
1138 | sha1_to_hex(target->sha1), prev_posn); | |
1139 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1140 | preq->range_header = curl_slist_append(NULL, range); | |
1141 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1142 | preq->range_header); | |
1143 | } | |
1144 | ||
1145 | return preq; | |
1146 | ||
1147 | abort: | |
bb99190e | 1148 | free(preq->url); |
5ae9ebfd | 1149 | free(preq); |
2264dfa5 TRC |
1150 | return NULL; |
1151 | } | |
5424bc55 TRC |
1152 | |
1153 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1154 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1155 | void *data) |
1156 | { | |
1157 | unsigned char expn[4096]; | |
1158 | size_t size = eltsize * nmemb; | |
1159 | int posn = 0; | |
1160 | struct http_object_request *freq = | |
1161 | (struct http_object_request *)data; | |
1162 | do { | |
1163 | ssize_t retval = xwrite(freq->localfile, | |
1164 | (char *) ptr + posn, size - posn); | |
1165 | if (retval < 0) | |
1166 | return posn; | |
1167 | posn += retval; | |
1168 | } while (posn < size); | |
1169 | ||
1170 | freq->stream.avail_in = size; | |
a04ff3ec | 1171 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1172 | do { |
1173 | freq->stream.next_out = expn; | |
1174 | freq->stream.avail_out = sizeof(expn); | |
1175 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1176 | git_SHA1_Update(&freq->c, expn, | |
1177 | sizeof(expn) - freq->stream.avail_out); | |
1178 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
5424bc55 TRC |
1179 | return size; |
1180 | } | |
1181 | ||
1182 | struct http_object_request *new_http_object_request(const char *base_url, | |
1183 | unsigned char *sha1) | |
1184 | { | |
1185 | char *hex = sha1_to_hex(sha1); | |
1186 | char *filename; | |
1187 | char prevfile[PATH_MAX]; | |
5424bc55 | 1188 | int prevlocal; |
a04ff3ec | 1189 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1190 | ssize_t prev_read = 0; |
1191 | long prev_posn = 0; | |
1192 | char range[RANGE_HEADER_SIZE]; | |
1193 | struct curl_slist *range_header = NULL; | |
1194 | struct http_object_request *freq; | |
1195 | ||
ec99c9a8 | 1196 | freq = xcalloc(1, sizeof(*freq)); |
5424bc55 TRC |
1197 | hashcpy(freq->sha1, sha1); |
1198 | freq->localfile = -1; | |
1199 | ||
1200 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1201 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1202 | "%s.temp", filename); | |
1203 | ||
1204 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1205 | unlink_or_warn(prevfile); | |
1206 | rename(freq->tmpfile, prevfile); | |
1207 | unlink_or_warn(freq->tmpfile); | |
1208 | ||
1209 | if (freq->localfile != -1) | |
1210 | error("fd leakage in start: %d", freq->localfile); | |
1211 | freq->localfile = open(freq->tmpfile, | |
1212 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1213 | /* | |
1214 | * This could have failed due to the "lazy directory creation"; | |
1215 | * try to mkdir the last path component. | |
1216 | */ | |
1217 | if (freq->localfile < 0 && errno == ENOENT) { | |
1218 | char *dir = strrchr(freq->tmpfile, '/'); | |
1219 | if (dir) { | |
1220 | *dir = 0; | |
1221 | mkdir(freq->tmpfile, 0777); | |
1222 | *dir = '/'; | |
1223 | } | |
1224 | freq->localfile = open(freq->tmpfile, | |
1225 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1226 | } | |
1227 | ||
1228 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1229 | error("Couldn't create temporary file %s: %s", |
1230 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1231 | goto abort; |
1232 | } | |
1233 | ||
5424bc55 TRC |
1234 | git_inflate_init(&freq->stream); |
1235 | ||
1236 | git_SHA1_Init(&freq->c); | |
1237 | ||
bb99190e | 1238 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1239 | |
1240 | /* | |
1241 | * If a previous temp file is present, process what was already | |
1242 | * fetched. | |
1243 | */ | |
1244 | prevlocal = open(prevfile, O_RDONLY); | |
1245 | if (prevlocal != -1) { | |
1246 | do { | |
1247 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1248 | if (prev_read>0) { | |
1249 | if (fwrite_sha1_file(prev_buf, | |
1250 | 1, | |
1251 | prev_read, | |
1252 | freq) == prev_read) { | |
1253 | prev_posn += prev_read; | |
1254 | } else { | |
1255 | prev_read = -1; | |
1256 | } | |
1257 | } | |
1258 | } while (prev_read > 0); | |
1259 | close(prevlocal); | |
1260 | } | |
1261 | unlink_or_warn(prevfile); | |
1262 | ||
1263 | /* | |
1264 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1265 | * file; also rewind to the beginning of the local file. | |
1266 | */ | |
1267 | if (prev_read == -1) { | |
1268 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1269 | git_inflate_init(&freq->stream); | |
1270 | git_SHA1_Init(&freq->c); | |
1271 | if (prev_posn>0) { | |
1272 | prev_posn = 0; | |
1273 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1274 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1275 | error("Couldn't truncate temporary file %s: %s", |
1276 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1277 | goto abort; |
1278 | } | |
5424bc55 TRC |
1279 | } |
1280 | } | |
1281 | ||
1282 | freq->slot = get_active_slot(); | |
1283 | ||
1284 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1285 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1286 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1287 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1288 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1289 | ||
1290 | /* | |
1291 | * If we have successfully processed data from a previous fetch | |
1292 | * attempt, only fetch the data we don't already have. | |
1293 | */ | |
1294 | if (prev_posn>0) { | |
1295 | if (http_is_verbose) | |
1296 | fprintf(stderr, | |
1297 | "Resuming fetch of object %s at byte %ld\n", | |
1298 | hex, prev_posn); | |
1299 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1300 | range_header = curl_slist_append(range_header, range); | |
1301 | curl_easy_setopt(freq->slot->curl, | |
1302 | CURLOPT_HTTPHEADER, range_header); | |
1303 | } | |
1304 | ||
1305 | return freq; | |
1306 | ||
5424bc55 | 1307 | abort: |
bb99190e | 1308 | free(freq->url); |
5424bc55 TRC |
1309 | free(freq); |
1310 | return NULL; | |
1311 | } | |
1312 | ||
1313 | void process_http_object_request(struct http_object_request *freq) | |
1314 | { | |
1315 | if (freq->slot == NULL) | |
1316 | return; | |
1317 | freq->curl_result = freq->slot->curl_result; | |
1318 | freq->http_code = freq->slot->http_code; | |
1319 | freq->slot = NULL; | |
1320 | } | |
1321 | ||
1322 | int finish_http_object_request(struct http_object_request *freq) | |
1323 | { | |
1324 | struct stat st; | |
1325 | ||
1326 | close(freq->localfile); | |
1327 | freq->localfile = -1; | |
1328 | ||
1329 | process_http_object_request(freq); | |
1330 | ||
1331 | if (freq->http_code == 416) { | |
bd757c18 | 1332 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1333 | } else if (freq->curl_result != CURLE_OK) { |
1334 | if (stat(freq->tmpfile, &st) == 0) | |
1335 | if (st.st_size == 0) | |
1336 | unlink_or_warn(freq->tmpfile); | |
1337 | return -1; | |
1338 | } | |
1339 | ||
1340 | git_inflate_end(&freq->stream); | |
1341 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1342 | if (freq->zret != Z_STREAM_END) { | |
1343 | unlink_or_warn(freq->tmpfile); | |
1344 | return -1; | |
1345 | } | |
1346 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1347 | unlink_or_warn(freq->tmpfile); | |
1348 | return -1; | |
1349 | } | |
1350 | freq->rename = | |
0da8b2e7 | 1351 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1352 | |
1353 | return freq->rename; | |
1354 | } | |
1355 | ||
1356 | void abort_http_object_request(struct http_object_request *freq) | |
1357 | { | |
1358 | unlink_or_warn(freq->tmpfile); | |
1359 | ||
1360 | release_http_object_request(freq); | |
1361 | } | |
1362 | ||
1363 | void release_http_object_request(struct http_object_request *freq) | |
1364 | { | |
1365 | if (freq->localfile != -1) { | |
1366 | close(freq->localfile); | |
1367 | freq->localfile = -1; | |
1368 | } | |
1369 | if (freq->url != NULL) { | |
1370 | free(freq->url); | |
1371 | freq->url = NULL; | |
1372 | } | |
4b9fa0e3 TRC |
1373 | if (freq->slot != NULL) { |
1374 | freq->slot->callback_func = NULL; | |
1375 | freq->slot->callback_data = NULL; | |
1376 | release_active_slot(freq->slot); | |
1377 | freq->slot = NULL; | |
1378 | } | |
5424bc55 | 1379 | } |