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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" |
29508e1e | 7 | |
4251ccbd | 8 | int active_requests; |
e9176745 | 9 | int http_is_verbose; |
de1a2fdd | 10 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 11 | |
b8ac9230 MS |
12 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
13 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
14 | #endif | |
15 | ||
ad75ebe5 TRC |
16 | static int min_curl_sessions = 1; |
17 | static int curl_session_count; | |
29508e1e | 18 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
19 | static int max_requests = -1; |
20 | static CURLM *curlm; | |
29508e1e NH |
21 | #endif |
22 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 23 | static CURL *curl_default; |
29508e1e | 24 | #endif |
5424bc55 TRC |
25 | |
26 | #define PREV_BUF_SIZE 4096 | |
27 | #define RANGE_HEADER_SIZE 30 | |
28 | ||
29508e1e NH |
29 | char curl_errorstr[CURL_ERROR_SIZE]; |
30 | ||
cc3530e8 | 31 | static int curl_ssl_verify = -1; |
4251ccbd | 32 | static const char *ssl_cert; |
ef52aafa | 33 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 34 | static const char *ssl_key; |
29508e1e NH |
35 | #endif |
36 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 37 | static const char *ssl_capath; |
29508e1e | 38 | #endif |
4251ccbd | 39 | static const char *ssl_cainfo; |
cc3530e8 MH |
40 | static long curl_low_speed_limit = -1; |
41 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
42 | static int curl_ftp_no_epsv; |
43 | static const char *curl_http_proxy; | |
bcfb95dd | 44 | static const char *curl_cookie_file; |
148bb6a7 | 45 | static struct credential http_auth = CREDENTIAL_INIT; |
a4ddbc33 | 46 | static int http_proactive_auth; |
b1d1058c | 47 | static const char *user_agent; |
29508e1e | 48 | |
30dd9163 ML |
49 | #if LIBCURL_VERSION_NUM >= 0x071700 |
50 | /* Use CURLOPT_KEYPASSWD as is */ | |
51 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
52 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
53 | #else | |
54 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
55 | #endif | |
56 | ||
148bb6a7 | 57 | static struct credential cert_auth = CREDENTIAL_INIT; |
30dd9163 ML |
58 | static int ssl_cert_password_required; |
59 | ||
cc3530e8 | 60 | static struct curl_slist *pragma_header; |
5424bc55 | 61 | static struct curl_slist *no_pragma_header; |
e9176745 | 62 | |
4251ccbd | 63 | static struct active_request_slot *active_queue_head; |
29508e1e | 64 | |
a04ff3ec | 65 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
66 | { |
67 | size_t size = eltsize * nmemb; | |
f444e528 JH |
68 | struct buffer *buffer = buffer_; |
69 | ||
028c2976 MH |
70 | if (size > buffer->buf.len - buffer->posn) |
71 | size = buffer->buf.len - buffer->posn; | |
72 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 73 | buffer->posn += size; |
028c2976 | 74 | |
29508e1e NH |
75 | return size; |
76 | } | |
77 | ||
3944ba0c MS |
78 | #ifndef NO_CURL_IOCTL |
79 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
80 | { | |
81 | struct buffer *buffer = clientp; | |
82 | ||
83 | switch (cmd) { | |
84 | case CURLIOCMD_NOP: | |
85 | return CURLIOE_OK; | |
86 | ||
87 | case CURLIOCMD_RESTARTREAD: | |
88 | buffer->posn = 0; | |
89 | return CURLIOE_OK; | |
90 | ||
91 | default: | |
92 | return CURLIOE_UNKNOWNCMD; | |
93 | } | |
94 | } | |
95 | #endif | |
96 | ||
a04ff3ec | 97 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
98 | { |
99 | size_t size = eltsize * nmemb; | |
f444e528 JH |
100 | struct strbuf *buffer = buffer_; |
101 | ||
028c2976 | 102 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
103 | return size; |
104 | } | |
105 | ||
a04ff3ec | 106 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 107 | { |
29508e1e NH |
108 | return eltsize * nmemb; |
109 | } | |
110 | ||
29508e1e NH |
111 | #ifdef USE_CURL_MULTI |
112 | static void process_curl_messages(void) | |
113 | { | |
114 | int num_messages; | |
115 | struct active_request_slot *slot; | |
116 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
117 | ||
118 | while (curl_message != NULL) { | |
119 | if (curl_message->msg == CURLMSG_DONE) { | |
120 | int curl_result = curl_message->data.result; | |
121 | slot = active_queue_head; | |
122 | while (slot != NULL && | |
123 | slot->curl != curl_message->easy_handle) | |
124 | slot = slot->next; | |
125 | if (slot != NULL) { | |
126 | curl_multi_remove_handle(curlm, slot->curl); | |
127 | slot->curl_result = curl_result; | |
128 | finish_active_slot(slot); | |
129 | } else { | |
130 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
131 | } | |
132 | } else { | |
133 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
134 | (int)curl_message->msg); | |
135 | } | |
136 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
137 | } | |
138 | } | |
139 | #endif | |
140 | ||
ef90d6d4 | 141 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
142 | { |
143 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 144 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
145 | return 0; |
146 | } | |
7059cd99 JH |
147 | if (!strcmp("http.sslcert", var)) |
148 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 149 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
150 | if (!strcmp("http.sslkey", var)) |
151 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
152 | #endif |
153 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
154 | if (!strcmp("http.sslcapath", var)) |
155 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 156 | #endif |
7059cd99 JH |
157 | if (!strcmp("http.sslcainfo", var)) |
158 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 ML |
159 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
160 | if (git_config_bool(var, value)) | |
161 | ssl_cert_password_required = 1; | |
162 | return 0; | |
163 | } | |
ad75ebe5 TRC |
164 | if (!strcmp("http.minsessions", var)) { |
165 | min_curl_sessions = git_config_int(var, value); | |
166 | #ifndef USE_CURL_MULTI | |
167 | if (min_curl_sessions > 1) | |
168 | min_curl_sessions = 1; | |
169 | #endif | |
170 | return 0; | |
171 | } | |
a6080a0a | 172 | #ifdef USE_CURL_MULTI |
29508e1e | 173 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 174 | max_requests = git_config_int(var, value); |
29508e1e NH |
175 | return 0; |
176 | } | |
177 | #endif | |
29508e1e | 178 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 179 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
180 | return 0; |
181 | } | |
182 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 183 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
184 | return 0; |
185 | } | |
186 | ||
3ea099d4 SK |
187 | if (!strcmp("http.noepsv", var)) { |
188 | curl_ftp_no_epsv = git_config_bool(var, value); | |
189 | return 0; | |
190 | } | |
7059cd99 JH |
191 | if (!strcmp("http.proxy", var)) |
192 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 193 | |
bcfb95dd DB |
194 | if (!strcmp("http.cookiefile", var)) |
195 | return git_config_string(&curl_cookie_file, var, value); | |
196 | ||
de1a2fdd SP |
197 | if (!strcmp("http.postbuffer", var)) { |
198 | http_post_buffer = git_config_int(var, value); | |
199 | if (http_post_buffer < LARGE_PACKET_MAX) | |
200 | http_post_buffer = LARGE_PACKET_MAX; | |
201 | return 0; | |
202 | } | |
203 | ||
b1d1058c SO |
204 | if (!strcmp("http.useragent", var)) |
205 | return git_config_string(&user_agent, var, value); | |
206 | ||
29508e1e | 207 | /* Fall back on the default ones */ |
ef90d6d4 | 208 | return git_default_config(var, value, cb); |
29508e1e NH |
209 | } |
210 | ||
c33976cb JH |
211 | static void init_curl_http_auth(CURL *result) |
212 | { | |
148bb6a7 | 213 | if (http_auth.username) { |
c33976cb | 214 | struct strbuf up = STRBUF_INIT; |
148bb6a7 JK |
215 | credential_fill(&http_auth); |
216 | strbuf_addf(&up, "%s:%s", | |
217 | http_auth.username, http_auth.password); | |
c33976cb JH |
218 | curl_easy_setopt(result, CURLOPT_USERPWD, |
219 | strbuf_detach(&up, NULL)); | |
220 | } | |
221 | } | |
222 | ||
30dd9163 ML |
223 | static int has_cert_password(void) |
224 | { | |
30dd9163 ML |
225 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
226 | return 0; | |
148bb6a7 JK |
227 | if (!cert_auth.password) { |
228 | cert_auth.protocol = xstrdup("cert"); | |
229 | cert_auth.path = xstrdup(ssl_cert); | |
230 | credential_fill(&cert_auth); | |
231 | } | |
232 | return 1; | |
30dd9163 ML |
233 | } |
234 | ||
4251ccbd | 235 | static CURL *get_curl_handle(void) |
11979b98 | 236 | { |
4251ccbd | 237 | CURL *result = curl_easy_init(); |
11979b98 | 238 | |
a5ccc597 JH |
239 | if (!curl_ssl_verify) { |
240 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
241 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
242 | } else { | |
243 | /* Verify authenticity of the peer's certificate */ | |
244 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
245 | /* The name in the cert must match whom we tried to connect */ | |
246 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
247 | } | |
248 | ||
11979b98 JH |
249 | #if LIBCURL_VERSION_NUM >= 0x070907 |
250 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
251 | #endif | |
b8ac9230 | 252 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 253 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 254 | #endif |
11979b98 | 255 | |
a4ddbc33 JK |
256 | if (http_proactive_auth) |
257 | init_curl_http_auth(result); | |
258 | ||
11979b98 JH |
259 | if (ssl_cert != NULL) |
260 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 | 261 | if (has_cert_password()) |
148bb6a7 | 262 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
ef52aafa | 263 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
264 | if (ssl_key != NULL) |
265 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
266 | #endif | |
267 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
268 | if (ssl_capath != NULL) | |
269 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
270 | #endif | |
271 | if (ssl_cainfo != NULL) | |
272 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
273 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
274 | ||
275 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
276 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
277 | curl_low_speed_limit); | |
278 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
279 | curl_low_speed_time); | |
280 | } | |
281 | ||
282 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
283 | #if LIBCURL_VERSION_NUM >= 0x071301 |
284 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
285 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
286 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
287 | #endif | |
11979b98 | 288 | |
7982d74e MW |
289 | if (getenv("GIT_CURL_VERBOSE")) |
290 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
291 | ||
b1d1058c SO |
292 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
293 | user_agent ? user_agent : GIT_HTTP_USER_AGENT); | |
20fc9bc5 | 294 | |
3ea099d4 SK |
295 | if (curl_ftp_no_epsv) |
296 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
297 | ||
dd613997 | 298 | if (curl_http_proxy) { |
9c5665aa | 299 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); |
dd613997 NBL |
300 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); |
301 | } | |
9c5665aa | 302 | |
11979b98 JH |
303 | return result; |
304 | } | |
305 | ||
7059cd99 JH |
306 | static void set_from_env(const char **var, const char *envname) |
307 | { | |
308 | const char *val = getenv(envname); | |
309 | if (val) | |
310 | *var = val; | |
311 | } | |
312 | ||
a4ddbc33 | 313 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
314 | { |
315 | char *low_speed_limit; | |
316 | char *low_speed_time; | |
317 | ||
e9176745 TRC |
318 | http_is_verbose = 0; |
319 | ||
7059cd99 JH |
320 | git_config(http_options, NULL); |
321 | ||
29508e1e NH |
322 | curl_global_init(CURL_GLOBAL_ALL); |
323 | ||
a4ddbc33 JK |
324 | http_proactive_auth = proactive_auth; |
325 | ||
9fc6440d MH |
326 | if (remote && remote->http_proxy) |
327 | curl_http_proxy = xstrdup(remote->http_proxy); | |
328 | ||
29508e1e | 329 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 330 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
331 | |
332 | #ifdef USE_CURL_MULTI | |
333 | { | |
334 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
335 | if (http_max_requests != NULL) | |
336 | max_requests = atoi(http_max_requests); | |
337 | } | |
338 | ||
339 | curlm = curl_multi_init(); | |
340 | if (curlm == NULL) { | |
341 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
342 | exit(1); | |
343 | } | |
344 | #endif | |
345 | ||
346 | if (getenv("GIT_SSL_NO_VERIFY")) | |
347 | curl_ssl_verify = 0; | |
348 | ||
7059cd99 | 349 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 350 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 351 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
352 | #endif |
353 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 354 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 355 | #endif |
7059cd99 | 356 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 357 | |
b1d1058c SO |
358 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
359 | ||
29508e1e NH |
360 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
361 | if (low_speed_limit != NULL) | |
362 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
363 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
364 | if (low_speed_time != NULL) | |
365 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
366 | ||
29508e1e NH |
367 | if (curl_ssl_verify == -1) |
368 | curl_ssl_verify = 1; | |
369 | ||
ad75ebe5 | 370 | curl_session_count = 0; |
29508e1e NH |
371 | #ifdef USE_CURL_MULTI |
372 | if (max_requests < 1) | |
373 | max_requests = DEFAULT_MAX_REQUESTS; | |
374 | #endif | |
375 | ||
3ea099d4 SK |
376 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
377 | curl_ftp_no_epsv = 1; | |
378 | ||
deba4937 | 379 | if (url) { |
148bb6a7 | 380 | credential_from_url(&http_auth, url); |
754ae192 ML |
381 | if (!ssl_cert_password_required && |
382 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
deba4937 | 383 | !prefixcmp(url, "https://")) |
30dd9163 ML |
384 | ssl_cert_password_required = 1; |
385 | } | |
c33976cb | 386 | |
29508e1e NH |
387 | #ifndef NO_CURL_EASY_DUPHANDLE |
388 | curl_default = get_curl_handle(); | |
389 | #endif | |
390 | } | |
391 | ||
392 | void http_cleanup(void) | |
393 | { | |
394 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
395 | |
396 | while (slot != NULL) { | |
3278cd0a | 397 | struct active_request_slot *next = slot->next; |
f23d1f76 | 398 | if (slot->curl != NULL) { |
29508e1e | 399 | #ifdef USE_CURL_MULTI |
f23d1f76 | 400 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 401 | #endif |
29508e1e | 402 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 403 | } |
3278cd0a SP |
404 | free(slot); |
405 | slot = next; | |
29508e1e | 406 | } |
3278cd0a | 407 | active_queue_head = NULL; |
29508e1e NH |
408 | |
409 | #ifndef NO_CURL_EASY_DUPHANDLE | |
410 | curl_easy_cleanup(curl_default); | |
411 | #endif | |
412 | ||
413 | #ifdef USE_CURL_MULTI | |
414 | curl_multi_cleanup(curlm); | |
415 | #endif | |
416 | curl_global_cleanup(); | |
b3ca4e4e NH |
417 | |
418 | curl_slist_free_all(pragma_header); | |
3278cd0a | 419 | pragma_header = NULL; |
9fc6440d | 420 | |
e9176745 TRC |
421 | curl_slist_free_all(no_pragma_header); |
422 | no_pragma_header = NULL; | |
423 | ||
9fc6440d | 424 | if (curl_http_proxy) { |
e4a80ecf | 425 | free((void *)curl_http_proxy); |
9fc6440d MH |
426 | curl_http_proxy = NULL; |
427 | } | |
30dd9163 | 428 | |
148bb6a7 JK |
429 | if (cert_auth.password != NULL) { |
430 | memset(cert_auth.password, 0, strlen(cert_auth.password)); | |
431 | free(cert_auth.password); | |
432 | cert_auth.password = NULL; | |
30dd9163 ML |
433 | } |
434 | ssl_cert_password_required = 0; | |
29508e1e NH |
435 | } |
436 | ||
29508e1e NH |
437 | struct active_request_slot *get_active_slot(void) |
438 | { | |
439 | struct active_request_slot *slot = active_queue_head; | |
440 | struct active_request_slot *newslot; | |
441 | ||
442 | #ifdef USE_CURL_MULTI | |
443 | int num_transfers; | |
444 | ||
445 | /* Wait for a slot to open up if the queue is full */ | |
446 | while (active_requests >= max_requests) { | |
447 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 448 | if (num_transfers < active_requests) |
29508e1e | 449 | process_curl_messages(); |
29508e1e NH |
450 | } |
451 | #endif | |
452 | ||
4251ccbd | 453 | while (slot != NULL && slot->in_use) |
29508e1e | 454 | slot = slot->next; |
4251ccbd | 455 | |
29508e1e NH |
456 | if (slot == NULL) { |
457 | newslot = xmalloc(sizeof(*newslot)); | |
458 | newslot->curl = NULL; | |
459 | newslot->in_use = 0; | |
460 | newslot->next = NULL; | |
461 | ||
462 | slot = active_queue_head; | |
463 | if (slot == NULL) { | |
464 | active_queue_head = newslot; | |
465 | } else { | |
4251ccbd | 466 | while (slot->next != NULL) |
29508e1e | 467 | slot = slot->next; |
29508e1e NH |
468 | slot->next = newslot; |
469 | } | |
470 | slot = newslot; | |
471 | } | |
472 | ||
473 | if (slot->curl == NULL) { | |
474 | #ifdef NO_CURL_EASY_DUPHANDLE | |
475 | slot->curl = get_curl_handle(); | |
476 | #else | |
477 | slot->curl = curl_easy_duphandle(curl_default); | |
478 | #endif | |
ad75ebe5 | 479 | curl_session_count++; |
29508e1e NH |
480 | } |
481 | ||
482 | active_requests++; | |
483 | slot->in_use = 1; | |
c8568e13 | 484 | slot->results = NULL; |
baa7b67d | 485 | slot->finished = NULL; |
29508e1e NH |
486 | slot->callback_data = NULL; |
487 | slot->callback_func = NULL; | |
bcfb95dd | 488 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
29508e1e | 489 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 490 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
491 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
492 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
493 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 494 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
495 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
496 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
dfa1725a JK |
497 | if (http_auth.password) |
498 | init_curl_http_auth(slot->curl); | |
29508e1e NH |
499 | |
500 | return slot; | |
501 | } | |
502 | ||
503 | int start_active_slot(struct active_request_slot *slot) | |
504 | { | |
505 | #ifdef USE_CURL_MULTI | |
506 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 507 | int num_transfers; |
29508e1e NH |
508 | |
509 | if (curlm_result != CURLM_OK && | |
510 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
511 | active_requests--; | |
512 | slot->in_use = 0; | |
513 | return 0; | |
514 | } | |
45c17412 DB |
515 | |
516 | /* | |
517 | * We know there must be something to do, since we just added | |
518 | * something. | |
519 | */ | |
520 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
521 | #endif |
522 | return 1; | |
523 | } | |
524 | ||
525 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
526 | struct fill_chain { |
527 | void *data; | |
528 | int (*fill)(void *); | |
529 | struct fill_chain *next; | |
530 | }; | |
531 | ||
4251ccbd | 532 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
533 | |
534 | void add_fill_function(void *data, int (*fill)(void *)) | |
535 | { | |
e8eec71d | 536 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
537 | struct fill_chain **linkp = &fill_cfg; |
538 | new->data = data; | |
539 | new->fill = fill; | |
540 | new->next = NULL; | |
541 | while (*linkp) | |
542 | linkp = &(*linkp)->next; | |
543 | *linkp = new; | |
544 | } | |
545 | ||
45c17412 DB |
546 | void fill_active_slots(void) |
547 | { | |
548 | struct active_request_slot *slot = active_queue_head; | |
549 | ||
fc57b6aa DB |
550 | while (active_requests < max_requests) { |
551 | struct fill_chain *fill; | |
552 | for (fill = fill_cfg; fill; fill = fill->next) | |
553 | if (fill->fill(fill->data)) | |
554 | break; | |
555 | ||
556 | if (!fill) | |
45c17412 | 557 | break; |
fc57b6aa | 558 | } |
45c17412 DB |
559 | |
560 | while (slot != NULL) { | |
ad75ebe5 TRC |
561 | if (!slot->in_use && slot->curl != NULL |
562 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
563 | curl_easy_cleanup(slot->curl); |
564 | slot->curl = NULL; | |
ad75ebe5 | 565 | curl_session_count--; |
45c17412 DB |
566 | } |
567 | slot = slot->next; | |
568 | } | |
569 | } | |
570 | ||
29508e1e NH |
571 | void step_active_slots(void) |
572 | { | |
573 | int num_transfers; | |
574 | CURLMcode curlm_result; | |
575 | ||
576 | do { | |
577 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
578 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
579 | if (num_transfers < active_requests) { | |
580 | process_curl_messages(); | |
581 | fill_active_slots(); | |
582 | } | |
583 | } | |
584 | #endif | |
585 | ||
586 | void run_active_slot(struct active_request_slot *slot) | |
587 | { | |
588 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
589 | fd_set readfds; |
590 | fd_set writefds; | |
591 | fd_set excfds; | |
592 | int max_fd; | |
593 | struct timeval select_timeout; | |
baa7b67d | 594 | int finished = 0; |
29508e1e | 595 | |
baa7b67d NH |
596 | slot->finished = &finished; |
597 | while (!finished) { | |
29508e1e NH |
598 | step_active_slots(); |
599 | ||
df26c471 | 600 | if (slot->in_use) { |
eb56c821 MF |
601 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
602 | long curl_timeout; | |
603 | curl_multi_timeout(curlm, &curl_timeout); | |
604 | if (curl_timeout == 0) { | |
605 | continue; | |
606 | } else if (curl_timeout == -1) { | |
607 | select_timeout.tv_sec = 0; | |
608 | select_timeout.tv_usec = 50000; | |
609 | } else { | |
610 | select_timeout.tv_sec = curl_timeout / 1000; | |
611 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
612 | } | |
613 | #else | |
614 | select_timeout.tv_sec = 0; | |
615 | select_timeout.tv_usec = 50000; | |
616 | #endif | |
29508e1e | 617 | |
6f9dd67f | 618 | max_fd = -1; |
29508e1e NH |
619 | FD_ZERO(&readfds); |
620 | FD_ZERO(&writefds); | |
621 | FD_ZERO(&excfds); | |
6f9dd67f | 622 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 623 | |
6f9dd67f | 624 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
625 | } |
626 | } | |
627 | #else | |
628 | while (slot->in_use) { | |
629 | slot->curl_result = curl_easy_perform(slot->curl); | |
630 | finish_active_slot(slot); | |
631 | } | |
632 | #endif | |
633 | } | |
634 | ||
53f31389 | 635 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 636 | { |
028c2976 MH |
637 | active_requests--; |
638 | slot->in_use = 0; | |
53f31389 MW |
639 | } |
640 | ||
83e41e2e | 641 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
642 | { |
643 | closedown_active_slot(slot); | |
ad75ebe5 | 644 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 645 | #ifdef USE_CURL_MULTI |
53f31389 | 646 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 647 | #endif |
53f31389 MW |
648 | curl_easy_cleanup(slot->curl); |
649 | slot->curl = NULL; | |
ad75ebe5 | 650 | curl_session_count--; |
53f31389 | 651 | } |
b3ca4e4e | 652 | #ifdef USE_CURL_MULTI |
53f31389 | 653 | fill_active_slots(); |
b3ca4e4e | 654 | #endif |
53f31389 MW |
655 | } |
656 | ||
de1a2fdd | 657 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
658 | { |
659 | closedown_active_slot(slot); | |
028c2976 | 660 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 661 | |
baa7b67d NH |
662 | if (slot->finished != NULL) |
663 | (*slot->finished) = 1; | |
664 | ||
c8568e13 NH |
665 | /* Store slot results so they can be read after the slot is reused */ |
666 | if (slot->results != NULL) { | |
667 | slot->results->curl_result = slot->curl_result; | |
668 | slot->results->http_code = slot->http_code; | |
669 | } | |
670 | ||
028c2976 | 671 | /* Run callback if appropriate */ |
4251ccbd | 672 | if (slot->callback_func != NULL) |
028c2976 | 673 | slot->callback_func(slot->callback_data); |
29508e1e NH |
674 | } |
675 | ||
676 | void finish_all_active_slots(void) | |
677 | { | |
678 | struct active_request_slot *slot = active_queue_head; | |
679 | ||
680 | while (slot != NULL) | |
681 | if (slot->in_use) { | |
682 | run_active_slot(slot); | |
683 | slot = active_queue_head; | |
684 | } else { | |
685 | slot = slot->next; | |
686 | } | |
687 | } | |
d7e92806 | 688 | |
5ace994f | 689 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
690 | static inline int needs_quote(int ch) |
691 | { | |
692 | if (((ch >= 'A') && (ch <= 'Z')) | |
693 | || ((ch >= 'a') && (ch <= 'z')) | |
694 | || ((ch >= '0') && (ch <= '9')) | |
695 | || (ch == '/') | |
696 | || (ch == '-') | |
697 | || (ch == '.')) | |
698 | return 0; | |
699 | return 1; | |
700 | } | |
701 | ||
d7e92806 MH |
702 | static char *quote_ref_url(const char *base, const char *ref) |
703 | { | |
113106e0 | 704 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 705 | const char *cp; |
113106e0 | 706 | int ch; |
d7e92806 | 707 | |
5ace994f | 708 | end_url_with_slash(&buf, base); |
113106e0 TRC |
709 | |
710 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 711 | if (needs_quote(ch)) |
113106e0 | 712 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 713 | else |
113106e0 | 714 | strbuf_addch(&buf, *cp); |
d7e92806 | 715 | |
113106e0 | 716 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
717 | } |
718 | ||
5424bc55 TRC |
719 | void append_remote_object_url(struct strbuf *buf, const char *url, |
720 | const char *hex, | |
721 | int only_two_digit_prefix) | |
722 | { | |
800324c3 TRC |
723 | end_url_with_slash(buf, url); |
724 | ||
725 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
726 | if (!only_two_digit_prefix) |
727 | strbuf_addf(buf, "%s", hex+2); | |
728 | } | |
729 | ||
730 | char *get_remote_object_url(const char *url, const char *hex, | |
731 | int only_two_digit_prefix) | |
732 | { | |
733 | struct strbuf buf = STRBUF_INIT; | |
734 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
735 | return strbuf_detach(&buf, NULL); | |
736 | } | |
737 | ||
e929cd20 MH |
738 | /* http_request() targets */ |
739 | #define HTTP_REQUEST_STRBUF 0 | |
740 | #define HTTP_REQUEST_FILE 1 | |
741 | ||
742 | static int http_request(const char *url, void *result, int target, int options) | |
743 | { | |
744 | struct active_request_slot *slot; | |
745 | struct slot_results results; | |
746 | struct curl_slist *headers = NULL; | |
747 | struct strbuf buf = STRBUF_INIT; | |
748 | int ret; | |
749 | ||
750 | slot = get_active_slot(); | |
751 | slot->results = &results; | |
752 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
753 | ||
754 | if (result == NULL) { | |
755 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
756 | } else { | |
757 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
758 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
759 | ||
760 | if (target == HTTP_REQUEST_FILE) { | |
761 | long posn = ftell(result); | |
762 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
763 | fwrite); | |
764 | if (posn > 0) { | |
765 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
766 | headers = curl_slist_append(headers, buf.buf); | |
767 | strbuf_reset(&buf); | |
768 | } | |
e929cd20 MH |
769 | } else |
770 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
771 | fwrite_buffer); | |
772 | } | |
773 | ||
774 | strbuf_addstr(&buf, "Pragma:"); | |
775 | if (options & HTTP_NO_CACHE) | |
776 | strbuf_addstr(&buf, " no-cache"); | |
777 | ||
778 | headers = curl_slist_append(headers, buf.buf); | |
779 | ||
780 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
781 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
782 | ||
783 | if (start_active_slot(slot)) { | |
784 | run_active_slot(slot); | |
785 | if (results.curl_result == CURLE_OK) | |
786 | ret = HTTP_OK; | |
787 | else if (missing_target(&results)) | |
788 | ret = HTTP_MISSING_TARGET; | |
42653c09 | 789 | else if (results.http_code == 401) { |
148bb6a7 JK |
790 | if (http_auth.username && http_auth.password) { |
791 | credential_reject(&http_auth); | |
42653c09 SC |
792 | ret = HTTP_NOAUTH; |
793 | } else { | |
148bb6a7 | 794 | credential_fill(&http_auth); |
42653c09 SC |
795 | init_curl_http_auth(slot->curl); |
796 | ret = HTTP_REAUTH; | |
797 | } | |
be22d92e JN |
798 | } else { |
799 | if (!curl_errorstr[0]) | |
800 | strlcpy(curl_errorstr, | |
801 | curl_easy_strerror(results.curl_result), | |
802 | sizeof(curl_errorstr)); | |
e929cd20 | 803 | ret = HTTP_ERROR; |
be22d92e | 804 | } |
e929cd20 MH |
805 | } else { |
806 | error("Unable to start HTTP request for %s", url); | |
807 | ret = HTTP_START_FAILED; | |
808 | } | |
809 | ||
e929cd20 MH |
810 | curl_slist_free_all(headers); |
811 | strbuf_release(&buf); | |
812 | ||
148bb6a7 JK |
813 | if (ret == HTTP_OK) |
814 | credential_approve(&http_auth); | |
815 | ||
e929cd20 MH |
816 | return ret; |
817 | } | |
818 | ||
8d677edc JK |
819 | static int http_request_reauth(const char *url, void *result, int target, |
820 | int options) | |
821 | { | |
822 | int ret = http_request(url, result, target, options); | |
823 | if (ret != HTTP_REAUTH) | |
824 | return ret; | |
825 | return http_request(url, result, target, options); | |
826 | } | |
827 | ||
e929cd20 MH |
828 | int http_get_strbuf(const char *url, struct strbuf *result, int options) |
829 | { | |
8d677edc | 830 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
831 | } |
832 | ||
83e41e2e | 833 | /* |
a7793a74 | 834 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
835 | * |
836 | * If a previous interrupted download is detected (i.e. a previous temporary | |
837 | * file is still around) the download is resumed. | |
838 | */ | |
839 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
840 | { |
841 | int ret; | |
842 | struct strbuf tmpfile = STRBUF_INIT; | |
843 | FILE *result; | |
844 | ||
845 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
846 | result = fopen(tmpfile.buf, "a"); | |
847 | if (! result) { | |
848 | error("Unable to open local file %s", tmpfile.buf); | |
849 | ret = HTTP_ERROR; | |
850 | goto cleanup; | |
851 | } | |
852 | ||
8d677edc | 853 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
854 | fclose(result); |
855 | ||
856 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
857 | ret = HTTP_ERROR; | |
858 | cleanup: | |
859 | strbuf_release(&tmpfile); | |
860 | return ret; | |
861 | } | |
862 | ||
863 | int http_error(const char *url, int ret) | |
864 | { | |
865 | /* http_request has already handled HTTP_START_FAILED. */ | |
866 | if (ret != HTTP_START_FAILED) | |
8abc5082 | 867 | error("%s while accessing %s", curl_errorstr, url); |
e929cd20 MH |
868 | |
869 | return ret; | |
870 | } | |
871 | ||
c13b2633 | 872 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
873 | { |
874 | char *url; | |
875 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 876 | int ret = -1; |
d7e92806 | 877 | |
c13b2633 | 878 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
879 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
880 | strbuf_rtrim(&buffer); | |
881 | if (buffer.len == 40) | |
882 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
883 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
884 | ref->symref = xstrdup(buffer.buf + 5); | |
885 | ret = 0; | |
d7e92806 | 886 | } |
d7e92806 MH |
887 | } |
888 | ||
889 | strbuf_release(&buffer); | |
890 | free(url); | |
891 | return ret; | |
892 | } | |
b8caac2b TRC |
893 | |
894 | /* Helpers for fetching packs */ | |
750ef425 | 895 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 896 | { |
750ef425 | 897 | char *url, *tmp; |
b8caac2b | 898 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 899 | |
b8caac2b | 900 | if (http_is_verbose) |
162eb5f8 | 901 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
902 | |
903 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 904 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
905 | url = strbuf_detach(&buf, NULL); |
906 | ||
750ef425 SP |
907 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
908 | tmp = strbuf_detach(&buf, NULL); | |
909 | ||
910 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
911 | error("Unable to get pack index %s\n", url); | |
912 | free(tmp); | |
913 | tmp = NULL; | |
914 | } | |
b8caac2b | 915 | |
b8caac2b | 916 | free(url); |
750ef425 | 917 | return tmp; |
b8caac2b TRC |
918 | } |
919 | ||
920 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
921 | unsigned char *sha1, const char *base_url) | |
922 | { | |
923 | struct packed_git *new_pack; | |
750ef425 SP |
924 | char *tmp_idx = NULL; |
925 | int ret; | |
b8caac2b | 926 | |
750ef425 SP |
927 | if (has_pack_index(sha1)) { |
928 | new_pack = parse_pack_index(sha1, NULL); | |
929 | if (!new_pack) | |
930 | return -1; /* parse_pack_index() already issued error message */ | |
931 | goto add_pack; | |
932 | } | |
933 | ||
934 | tmp_idx = fetch_pack_index(sha1, base_url); | |
935 | if (!tmp_idx) | |
b8caac2b TRC |
936 | return -1; |
937 | ||
750ef425 SP |
938 | new_pack = parse_pack_index(sha1, tmp_idx); |
939 | if (!new_pack) { | |
940 | unlink(tmp_idx); | |
941 | free(tmp_idx); | |
942 | ||
b8caac2b | 943 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
944 | } |
945 | ||
946 | ret = verify_pack_index(new_pack); | |
947 | if (!ret) { | |
948 | close_pack_index(new_pack); | |
949 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
950 | } | |
951 | free(tmp_idx); | |
952 | if (ret) | |
953 | return -1; | |
954 | ||
955 | add_pack: | |
b8caac2b TRC |
956 | new_pack->next = *packs_head; |
957 | *packs_head = new_pack; | |
958 | return 0; | |
959 | } | |
960 | ||
961 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
962 | { | |
963 | int ret = 0, i = 0; | |
964 | char *url, *data; | |
965 | struct strbuf buf = STRBUF_INIT; | |
966 | unsigned char sha1[20]; | |
967 | ||
968 | end_url_with_slash(&buf, base_url); | |
969 | strbuf_addstr(&buf, "objects/info/packs"); | |
970 | url = strbuf_detach(&buf, NULL); | |
971 | ||
972 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
973 | if (ret != HTTP_OK) | |
974 | goto cleanup; | |
975 | ||
976 | data = buf.buf; | |
977 | while (i < buf.len) { | |
978 | switch (data[i]) { | |
979 | case 'P': | |
980 | i++; | |
981 | if (i + 52 <= buf.len && | |
982 | !prefixcmp(data + i, " pack-") && | |
983 | !prefixcmp(data + i + 46, ".pack\n")) { | |
984 | get_sha1_hex(data + i + 6, sha1); | |
985 | fetch_and_setup_pack_index(packs_head, sha1, | |
986 | base_url); | |
987 | i += 51; | |
988 | break; | |
989 | } | |
990 | default: | |
991 | while (i < buf.len && data[i] != '\n') | |
992 | i++; | |
993 | } | |
994 | i++; | |
995 | } | |
996 | ||
997 | cleanup: | |
998 | free(url); | |
999 | return ret; | |
1000 | } | |
2264dfa5 TRC |
1001 | |
1002 | void release_http_pack_request(struct http_pack_request *preq) | |
1003 | { | |
1004 | if (preq->packfile != NULL) { | |
1005 | fclose(preq->packfile); | |
1006 | preq->packfile = NULL; | |
2264dfa5 TRC |
1007 | } |
1008 | if (preq->range_header != NULL) { | |
1009 | curl_slist_free_all(preq->range_header); | |
1010 | preq->range_header = NULL; | |
1011 | } | |
1012 | preq->slot = NULL; | |
1013 | free(preq->url); | |
1014 | } | |
1015 | ||
1016 | int finish_http_pack_request(struct http_pack_request *preq) | |
1017 | { | |
2264dfa5 | 1018 | struct packed_git **lst; |
021ab6f0 | 1019 | struct packed_git *p = preq->target; |
fe72d420 SP |
1020 | char *tmp_idx; |
1021 | struct child_process ip; | |
1022 | const char *ip_argv[8]; | |
2264dfa5 | 1023 | |
fe72d420 | 1024 | close_pack_index(p); |
2264dfa5 | 1025 | |
3065274c SP |
1026 | fclose(preq->packfile); |
1027 | preq->packfile = NULL; | |
2264dfa5 TRC |
1028 | |
1029 | lst = preq->lst; | |
021ab6f0 | 1030 | while (*lst != p) |
2264dfa5 TRC |
1031 | lst = &((*lst)->next); |
1032 | *lst = (*lst)->next; | |
1033 | ||
fe72d420 SP |
1034 | tmp_idx = xstrdup(preq->tmpfile); |
1035 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1036 | ".idx.temp"); | |
1037 | ||
1038 | ip_argv[0] = "index-pack"; | |
1039 | ip_argv[1] = "-o"; | |
1040 | ip_argv[2] = tmp_idx; | |
1041 | ip_argv[3] = preq->tmpfile; | |
1042 | ip_argv[4] = NULL; | |
1043 | ||
1044 | memset(&ip, 0, sizeof(ip)); | |
1045 | ip.argv = ip_argv; | |
1046 | ip.git_cmd = 1; | |
1047 | ip.no_stdin = 1; | |
1048 | ip.no_stdout = 1; | |
1049 | ||
1050 | if (run_command(&ip)) { | |
1051 | unlink(preq->tmpfile); | |
1052 | unlink(tmp_idx); | |
1053 | free(tmp_idx); | |
2264dfa5 | 1054 | return -1; |
fe72d420 SP |
1055 | } |
1056 | ||
1057 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1058 | |
fe72d420 SP |
1059 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1060 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1061 | free(tmp_idx); | |
2264dfa5 | 1062 | return -1; |
fe72d420 | 1063 | } |
2264dfa5 | 1064 | |
fe72d420 SP |
1065 | install_packed_git(p); |
1066 | free(tmp_idx); | |
2264dfa5 TRC |
1067 | return 0; |
1068 | } | |
1069 | ||
1070 | struct http_pack_request *new_http_pack_request( | |
1071 | struct packed_git *target, const char *base_url) | |
1072 | { | |
2264dfa5 TRC |
1073 | long prev_posn = 0; |
1074 | char range[RANGE_HEADER_SIZE]; | |
1075 | struct strbuf buf = STRBUF_INIT; | |
1076 | struct http_pack_request *preq; | |
1077 | ||
ec99c9a8 | 1078 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1079 | preq->target = target; |
2264dfa5 TRC |
1080 | |
1081 | end_url_with_slash(&buf, base_url); | |
1082 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1083 | sha1_to_hex(target->sha1)); | |
bb99190e | 1084 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1085 | |
90d05713 TRC |
1086 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1087 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1088 | preq->packfile = fopen(preq->tmpfile, "a"); |
1089 | if (!preq->packfile) { | |
1090 | error("Unable to open local file %s for pack", | |
1091 | preq->tmpfile); | |
1092 | goto abort; | |
1093 | } | |
1094 | ||
1095 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
1096 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
1097 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1098 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1099 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1100 | no_pragma_header); | |
1101 | ||
1102 | /* | |
1103 | * If there is data present from a previous transfer attempt, | |
1104 | * resume where it left off | |
1105 | */ | |
1106 | prev_posn = ftell(preq->packfile); | |
1107 | if (prev_posn>0) { | |
1108 | if (http_is_verbose) | |
1109 | fprintf(stderr, | |
1110 | "Resuming fetch of pack %s at byte %ld\n", | |
1111 | sha1_to_hex(target->sha1), prev_posn); | |
1112 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1113 | preq->range_header = curl_slist_append(NULL, range); | |
1114 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1115 | preq->range_header); | |
1116 | } | |
1117 | ||
1118 | return preq; | |
1119 | ||
1120 | abort: | |
bb99190e | 1121 | free(preq->url); |
5ae9ebfd | 1122 | free(preq); |
2264dfa5 TRC |
1123 | return NULL; |
1124 | } | |
5424bc55 TRC |
1125 | |
1126 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1127 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1128 | void *data) |
1129 | { | |
1130 | unsigned char expn[4096]; | |
1131 | size_t size = eltsize * nmemb; | |
1132 | int posn = 0; | |
1133 | struct http_object_request *freq = | |
1134 | (struct http_object_request *)data; | |
1135 | do { | |
1136 | ssize_t retval = xwrite(freq->localfile, | |
1137 | (char *) ptr + posn, size - posn); | |
1138 | if (retval < 0) | |
1139 | return posn; | |
1140 | posn += retval; | |
1141 | } while (posn < size); | |
1142 | ||
1143 | freq->stream.avail_in = size; | |
a04ff3ec | 1144 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1145 | do { |
1146 | freq->stream.next_out = expn; | |
1147 | freq->stream.avail_out = sizeof(expn); | |
1148 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1149 | git_SHA1_Update(&freq->c, expn, | |
1150 | sizeof(expn) - freq->stream.avail_out); | |
1151 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
5424bc55 TRC |
1152 | return size; |
1153 | } | |
1154 | ||
1155 | struct http_object_request *new_http_object_request(const char *base_url, | |
1156 | unsigned char *sha1) | |
1157 | { | |
1158 | char *hex = sha1_to_hex(sha1); | |
1159 | char *filename; | |
1160 | char prevfile[PATH_MAX]; | |
5424bc55 | 1161 | int prevlocal; |
a04ff3ec | 1162 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1163 | ssize_t prev_read = 0; |
1164 | long prev_posn = 0; | |
1165 | char range[RANGE_HEADER_SIZE]; | |
1166 | struct curl_slist *range_header = NULL; | |
1167 | struct http_object_request *freq; | |
1168 | ||
ec99c9a8 | 1169 | freq = xcalloc(1, sizeof(*freq)); |
5424bc55 TRC |
1170 | hashcpy(freq->sha1, sha1); |
1171 | freq->localfile = -1; | |
1172 | ||
1173 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1174 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1175 | "%s.temp", filename); | |
1176 | ||
1177 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1178 | unlink_or_warn(prevfile); | |
1179 | rename(freq->tmpfile, prevfile); | |
1180 | unlink_or_warn(freq->tmpfile); | |
1181 | ||
1182 | if (freq->localfile != -1) | |
1183 | error("fd leakage in start: %d", freq->localfile); | |
1184 | freq->localfile = open(freq->tmpfile, | |
1185 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1186 | /* | |
1187 | * This could have failed due to the "lazy directory creation"; | |
1188 | * try to mkdir the last path component. | |
1189 | */ | |
1190 | if (freq->localfile < 0 && errno == ENOENT) { | |
1191 | char *dir = strrchr(freq->tmpfile, '/'); | |
1192 | if (dir) { | |
1193 | *dir = 0; | |
1194 | mkdir(freq->tmpfile, 0777); | |
1195 | *dir = '/'; | |
1196 | } | |
1197 | freq->localfile = open(freq->tmpfile, | |
1198 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1199 | } | |
1200 | ||
1201 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1202 | error("Couldn't create temporary file %s: %s", |
1203 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1204 | goto abort; |
1205 | } | |
1206 | ||
5424bc55 TRC |
1207 | git_inflate_init(&freq->stream); |
1208 | ||
1209 | git_SHA1_Init(&freq->c); | |
1210 | ||
bb99190e | 1211 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1212 | |
1213 | /* | |
1214 | * If a previous temp file is present, process what was already | |
1215 | * fetched. | |
1216 | */ | |
1217 | prevlocal = open(prevfile, O_RDONLY); | |
1218 | if (prevlocal != -1) { | |
1219 | do { | |
1220 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1221 | if (prev_read>0) { | |
1222 | if (fwrite_sha1_file(prev_buf, | |
1223 | 1, | |
1224 | prev_read, | |
1225 | freq) == prev_read) { | |
1226 | prev_posn += prev_read; | |
1227 | } else { | |
1228 | prev_read = -1; | |
1229 | } | |
1230 | } | |
1231 | } while (prev_read > 0); | |
1232 | close(prevlocal); | |
1233 | } | |
1234 | unlink_or_warn(prevfile); | |
1235 | ||
1236 | /* | |
1237 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1238 | * file; also rewind to the beginning of the local file. | |
1239 | */ | |
1240 | if (prev_read == -1) { | |
1241 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1242 | git_inflate_init(&freq->stream); | |
1243 | git_SHA1_Init(&freq->c); | |
1244 | if (prev_posn>0) { | |
1245 | prev_posn = 0; | |
1246 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1247 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1248 | error("Couldn't truncate temporary file %s: %s", |
1249 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1250 | goto abort; |
1251 | } | |
5424bc55 TRC |
1252 | } |
1253 | } | |
1254 | ||
1255 | freq->slot = get_active_slot(); | |
1256 | ||
1257 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1258 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1259 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1260 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1261 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1262 | ||
1263 | /* | |
1264 | * If we have successfully processed data from a previous fetch | |
1265 | * attempt, only fetch the data we don't already have. | |
1266 | */ | |
1267 | if (prev_posn>0) { | |
1268 | if (http_is_verbose) | |
1269 | fprintf(stderr, | |
1270 | "Resuming fetch of object %s at byte %ld\n", | |
1271 | hex, prev_posn); | |
1272 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1273 | range_header = curl_slist_append(range_header, range); | |
1274 | curl_easy_setopt(freq->slot->curl, | |
1275 | CURLOPT_HTTPHEADER, range_header); | |
1276 | } | |
1277 | ||
1278 | return freq; | |
1279 | ||
5424bc55 | 1280 | abort: |
bb99190e | 1281 | free(freq->url); |
5424bc55 TRC |
1282 | free(freq); |
1283 | return NULL; | |
1284 | } | |
1285 | ||
1286 | void process_http_object_request(struct http_object_request *freq) | |
1287 | { | |
1288 | if (freq->slot == NULL) | |
1289 | return; | |
1290 | freq->curl_result = freq->slot->curl_result; | |
1291 | freq->http_code = freq->slot->http_code; | |
1292 | freq->slot = NULL; | |
1293 | } | |
1294 | ||
1295 | int finish_http_object_request(struct http_object_request *freq) | |
1296 | { | |
1297 | struct stat st; | |
1298 | ||
1299 | close(freq->localfile); | |
1300 | freq->localfile = -1; | |
1301 | ||
1302 | process_http_object_request(freq); | |
1303 | ||
1304 | if (freq->http_code == 416) { | |
bd757c18 | 1305 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1306 | } else if (freq->curl_result != CURLE_OK) { |
1307 | if (stat(freq->tmpfile, &st) == 0) | |
1308 | if (st.st_size == 0) | |
1309 | unlink_or_warn(freq->tmpfile); | |
1310 | return -1; | |
1311 | } | |
1312 | ||
1313 | git_inflate_end(&freq->stream); | |
1314 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1315 | if (freq->zret != Z_STREAM_END) { | |
1316 | unlink_or_warn(freq->tmpfile); | |
1317 | return -1; | |
1318 | } | |
1319 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1320 | unlink_or_warn(freq->tmpfile); | |
1321 | return -1; | |
1322 | } | |
1323 | freq->rename = | |
0da8b2e7 | 1324 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1325 | |
1326 | return freq->rename; | |
1327 | } | |
1328 | ||
1329 | void abort_http_object_request(struct http_object_request *freq) | |
1330 | { | |
1331 | unlink_or_warn(freq->tmpfile); | |
1332 | ||
1333 | release_http_object_request(freq); | |
1334 | } | |
1335 | ||
1336 | void release_http_object_request(struct http_object_request *freq) | |
1337 | { | |
1338 | if (freq->localfile != -1) { | |
1339 | close(freq->localfile); | |
1340 | freq->localfile = -1; | |
1341 | } | |
1342 | if (freq->url != NULL) { | |
1343 | free(freq->url); | |
1344 | freq->url = NULL; | |
1345 | } | |
4b9fa0e3 TRC |
1346 | if (freq->slot != NULL) { |
1347 | freq->slot->callback_func = NULL; | |
1348 | freq->slot->callback_data = NULL; | |
1349 | release_active_slot(freq->slot); | |
1350 | freq->slot = NULL; | |
1351 | } | |
5424bc55 | 1352 | } |