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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 | { | |
6f4c347c JK |
213 | if (!http_auth.username) |
214 | return; | |
215 | ||
216 | credential_fill(&http_auth); | |
217 | ||
218 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
219 | curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username); | |
220 | curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password); | |
221 | #else | |
222 | { | |
aa0834a0 | 223 | static struct strbuf up = STRBUF_INIT; |
aa0834a0 | 224 | strbuf_reset(&up); |
148bb6a7 JK |
225 | strbuf_addf(&up, "%s:%s", |
226 | http_auth.username, http_auth.password); | |
aa0834a0 | 227 | curl_easy_setopt(result, CURLOPT_USERPWD, up.buf); |
c33976cb | 228 | } |
6f4c347c | 229 | #endif |
c33976cb JH |
230 | } |
231 | ||
30dd9163 ML |
232 | static int has_cert_password(void) |
233 | { | |
30dd9163 ML |
234 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
235 | return 0; | |
148bb6a7 JK |
236 | if (!cert_auth.password) { |
237 | cert_auth.protocol = xstrdup("cert"); | |
238 | cert_auth.path = xstrdup(ssl_cert); | |
239 | credential_fill(&cert_auth); | |
240 | } | |
241 | return 1; | |
30dd9163 ML |
242 | } |
243 | ||
4251ccbd | 244 | static CURL *get_curl_handle(void) |
11979b98 | 245 | { |
4251ccbd | 246 | CURL *result = curl_easy_init(); |
11979b98 | 247 | |
a5ccc597 JH |
248 | if (!curl_ssl_verify) { |
249 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
250 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
251 | } else { | |
252 | /* Verify authenticity of the peer's certificate */ | |
253 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
254 | /* The name in the cert must match whom we tried to connect */ | |
255 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
256 | } | |
257 | ||
11979b98 JH |
258 | #if LIBCURL_VERSION_NUM >= 0x070907 |
259 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
260 | #endif | |
b8ac9230 | 261 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 262 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 263 | #endif |
11979b98 | 264 | |
a4ddbc33 JK |
265 | if (http_proactive_auth) |
266 | init_curl_http_auth(result); | |
267 | ||
11979b98 JH |
268 | if (ssl_cert != NULL) |
269 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 | 270 | if (has_cert_password()) |
148bb6a7 | 271 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
ef52aafa | 272 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
273 | if (ssl_key != NULL) |
274 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
275 | #endif | |
276 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
277 | if (ssl_capath != NULL) | |
278 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
279 | #endif | |
280 | if (ssl_cainfo != NULL) | |
281 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
282 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
283 | ||
284 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
285 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
286 | curl_low_speed_limit); | |
287 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
288 | curl_low_speed_time); | |
289 | } | |
290 | ||
291 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
292 | #if LIBCURL_VERSION_NUM >= 0x071301 |
293 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
294 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
295 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
296 | #endif | |
11979b98 | 297 | |
7982d74e MW |
298 | if (getenv("GIT_CURL_VERBOSE")) |
299 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
300 | ||
b1d1058c SO |
301 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
302 | user_agent ? user_agent : GIT_HTTP_USER_AGENT); | |
20fc9bc5 | 303 | |
3ea099d4 SK |
304 | if (curl_ftp_no_epsv) |
305 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
306 | ||
dd613997 | 307 | if (curl_http_proxy) { |
9c5665aa | 308 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); |
dd613997 NBL |
309 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); |
310 | } | |
9c5665aa | 311 | |
11979b98 JH |
312 | return result; |
313 | } | |
314 | ||
7059cd99 JH |
315 | static void set_from_env(const char **var, const char *envname) |
316 | { | |
317 | const char *val = getenv(envname); | |
318 | if (val) | |
319 | *var = val; | |
320 | } | |
321 | ||
a4ddbc33 | 322 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
323 | { |
324 | char *low_speed_limit; | |
325 | char *low_speed_time; | |
326 | ||
e9176745 TRC |
327 | http_is_verbose = 0; |
328 | ||
7059cd99 JH |
329 | git_config(http_options, NULL); |
330 | ||
29508e1e NH |
331 | curl_global_init(CURL_GLOBAL_ALL); |
332 | ||
a4ddbc33 JK |
333 | http_proactive_auth = proactive_auth; |
334 | ||
9fc6440d MH |
335 | if (remote && remote->http_proxy) |
336 | curl_http_proxy = xstrdup(remote->http_proxy); | |
337 | ||
29508e1e | 338 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 339 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
340 | |
341 | #ifdef USE_CURL_MULTI | |
342 | { | |
343 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
344 | if (http_max_requests != NULL) | |
345 | max_requests = atoi(http_max_requests); | |
346 | } | |
347 | ||
348 | curlm = curl_multi_init(); | |
349 | if (curlm == NULL) { | |
350 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
351 | exit(1); | |
352 | } | |
353 | #endif | |
354 | ||
355 | if (getenv("GIT_SSL_NO_VERIFY")) | |
356 | curl_ssl_verify = 0; | |
357 | ||
7059cd99 | 358 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 359 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 360 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
361 | #endif |
362 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 363 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 364 | #endif |
7059cd99 | 365 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 366 | |
b1d1058c SO |
367 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
368 | ||
29508e1e NH |
369 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
370 | if (low_speed_limit != NULL) | |
371 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
372 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
373 | if (low_speed_time != NULL) | |
374 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
375 | ||
29508e1e NH |
376 | if (curl_ssl_verify == -1) |
377 | curl_ssl_verify = 1; | |
378 | ||
ad75ebe5 | 379 | curl_session_count = 0; |
29508e1e NH |
380 | #ifdef USE_CURL_MULTI |
381 | if (max_requests < 1) | |
382 | max_requests = DEFAULT_MAX_REQUESTS; | |
383 | #endif | |
384 | ||
3ea099d4 SK |
385 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
386 | curl_ftp_no_epsv = 1; | |
387 | ||
deba4937 | 388 | if (url) { |
148bb6a7 | 389 | credential_from_url(&http_auth, url); |
754ae192 ML |
390 | if (!ssl_cert_password_required && |
391 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
deba4937 | 392 | !prefixcmp(url, "https://")) |
30dd9163 ML |
393 | ssl_cert_password_required = 1; |
394 | } | |
c33976cb | 395 | |
29508e1e NH |
396 | #ifndef NO_CURL_EASY_DUPHANDLE |
397 | curl_default = get_curl_handle(); | |
398 | #endif | |
399 | } | |
400 | ||
401 | void http_cleanup(void) | |
402 | { | |
403 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
404 | |
405 | while (slot != NULL) { | |
3278cd0a | 406 | struct active_request_slot *next = slot->next; |
f23d1f76 | 407 | if (slot->curl != NULL) { |
29508e1e | 408 | #ifdef USE_CURL_MULTI |
f23d1f76 | 409 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 410 | #endif |
29508e1e | 411 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 412 | } |
3278cd0a SP |
413 | free(slot); |
414 | slot = next; | |
29508e1e | 415 | } |
3278cd0a | 416 | active_queue_head = NULL; |
29508e1e NH |
417 | |
418 | #ifndef NO_CURL_EASY_DUPHANDLE | |
419 | curl_easy_cleanup(curl_default); | |
420 | #endif | |
421 | ||
422 | #ifdef USE_CURL_MULTI | |
423 | curl_multi_cleanup(curlm); | |
424 | #endif | |
425 | curl_global_cleanup(); | |
b3ca4e4e NH |
426 | |
427 | curl_slist_free_all(pragma_header); | |
3278cd0a | 428 | pragma_header = NULL; |
9fc6440d | 429 | |
e9176745 TRC |
430 | curl_slist_free_all(no_pragma_header); |
431 | no_pragma_header = NULL; | |
432 | ||
9fc6440d | 433 | if (curl_http_proxy) { |
e4a80ecf | 434 | free((void *)curl_http_proxy); |
9fc6440d MH |
435 | curl_http_proxy = NULL; |
436 | } | |
30dd9163 | 437 | |
148bb6a7 JK |
438 | if (cert_auth.password != NULL) { |
439 | memset(cert_auth.password, 0, strlen(cert_auth.password)); | |
440 | free(cert_auth.password); | |
441 | cert_auth.password = NULL; | |
30dd9163 ML |
442 | } |
443 | ssl_cert_password_required = 0; | |
29508e1e NH |
444 | } |
445 | ||
29508e1e NH |
446 | struct active_request_slot *get_active_slot(void) |
447 | { | |
448 | struct active_request_slot *slot = active_queue_head; | |
449 | struct active_request_slot *newslot; | |
450 | ||
451 | #ifdef USE_CURL_MULTI | |
452 | int num_transfers; | |
453 | ||
454 | /* Wait for a slot to open up if the queue is full */ | |
455 | while (active_requests >= max_requests) { | |
456 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 457 | if (num_transfers < active_requests) |
29508e1e | 458 | process_curl_messages(); |
29508e1e NH |
459 | } |
460 | #endif | |
461 | ||
4251ccbd | 462 | while (slot != NULL && slot->in_use) |
29508e1e | 463 | slot = slot->next; |
4251ccbd | 464 | |
29508e1e NH |
465 | if (slot == NULL) { |
466 | newslot = xmalloc(sizeof(*newslot)); | |
467 | newslot->curl = NULL; | |
468 | newslot->in_use = 0; | |
469 | newslot->next = NULL; | |
470 | ||
471 | slot = active_queue_head; | |
472 | if (slot == NULL) { | |
473 | active_queue_head = newslot; | |
474 | } else { | |
4251ccbd | 475 | while (slot->next != NULL) |
29508e1e | 476 | slot = slot->next; |
29508e1e NH |
477 | slot->next = newslot; |
478 | } | |
479 | slot = newslot; | |
480 | } | |
481 | ||
482 | if (slot->curl == NULL) { | |
483 | #ifdef NO_CURL_EASY_DUPHANDLE | |
484 | slot->curl = get_curl_handle(); | |
485 | #else | |
486 | slot->curl = curl_easy_duphandle(curl_default); | |
487 | #endif | |
ad75ebe5 | 488 | curl_session_count++; |
29508e1e NH |
489 | } |
490 | ||
491 | active_requests++; | |
492 | slot->in_use = 1; | |
c8568e13 | 493 | slot->results = NULL; |
baa7b67d | 494 | slot->finished = NULL; |
29508e1e NH |
495 | slot->callback_data = NULL; |
496 | slot->callback_func = NULL; | |
bcfb95dd | 497 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
29508e1e | 498 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 499 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
500 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
501 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
502 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 503 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
504 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
505 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
dfa1725a JK |
506 | if (http_auth.password) |
507 | init_curl_http_auth(slot->curl); | |
29508e1e NH |
508 | |
509 | return slot; | |
510 | } | |
511 | ||
512 | int start_active_slot(struct active_request_slot *slot) | |
513 | { | |
514 | #ifdef USE_CURL_MULTI | |
515 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 516 | int num_transfers; |
29508e1e NH |
517 | |
518 | if (curlm_result != CURLM_OK && | |
519 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
520 | active_requests--; | |
521 | slot->in_use = 0; | |
522 | return 0; | |
523 | } | |
45c17412 DB |
524 | |
525 | /* | |
526 | * We know there must be something to do, since we just added | |
527 | * something. | |
528 | */ | |
529 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
530 | #endif |
531 | return 1; | |
532 | } | |
533 | ||
534 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
535 | struct fill_chain { |
536 | void *data; | |
537 | int (*fill)(void *); | |
538 | struct fill_chain *next; | |
539 | }; | |
540 | ||
4251ccbd | 541 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
542 | |
543 | void add_fill_function(void *data, int (*fill)(void *)) | |
544 | { | |
e8eec71d | 545 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
546 | struct fill_chain **linkp = &fill_cfg; |
547 | new->data = data; | |
548 | new->fill = fill; | |
549 | new->next = NULL; | |
550 | while (*linkp) | |
551 | linkp = &(*linkp)->next; | |
552 | *linkp = new; | |
553 | } | |
554 | ||
45c17412 DB |
555 | void fill_active_slots(void) |
556 | { | |
557 | struct active_request_slot *slot = active_queue_head; | |
558 | ||
fc57b6aa DB |
559 | while (active_requests < max_requests) { |
560 | struct fill_chain *fill; | |
561 | for (fill = fill_cfg; fill; fill = fill->next) | |
562 | if (fill->fill(fill->data)) | |
563 | break; | |
564 | ||
565 | if (!fill) | |
45c17412 | 566 | break; |
fc57b6aa | 567 | } |
45c17412 DB |
568 | |
569 | while (slot != NULL) { | |
ad75ebe5 TRC |
570 | if (!slot->in_use && slot->curl != NULL |
571 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
572 | curl_easy_cleanup(slot->curl); |
573 | slot->curl = NULL; | |
ad75ebe5 | 574 | curl_session_count--; |
45c17412 DB |
575 | } |
576 | slot = slot->next; | |
577 | } | |
578 | } | |
579 | ||
29508e1e NH |
580 | void step_active_slots(void) |
581 | { | |
582 | int num_transfers; | |
583 | CURLMcode curlm_result; | |
584 | ||
585 | do { | |
586 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
587 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
588 | if (num_transfers < active_requests) { | |
589 | process_curl_messages(); | |
590 | fill_active_slots(); | |
591 | } | |
592 | } | |
593 | #endif | |
594 | ||
595 | void run_active_slot(struct active_request_slot *slot) | |
596 | { | |
597 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
598 | fd_set readfds; |
599 | fd_set writefds; | |
600 | fd_set excfds; | |
601 | int max_fd; | |
602 | struct timeval select_timeout; | |
baa7b67d | 603 | int finished = 0; |
29508e1e | 604 | |
baa7b67d NH |
605 | slot->finished = &finished; |
606 | while (!finished) { | |
29508e1e NH |
607 | step_active_slots(); |
608 | ||
df26c471 | 609 | if (slot->in_use) { |
eb56c821 MF |
610 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
611 | long curl_timeout; | |
612 | curl_multi_timeout(curlm, &curl_timeout); | |
613 | if (curl_timeout == 0) { | |
614 | continue; | |
615 | } else if (curl_timeout == -1) { | |
616 | select_timeout.tv_sec = 0; | |
617 | select_timeout.tv_usec = 50000; | |
618 | } else { | |
619 | select_timeout.tv_sec = curl_timeout / 1000; | |
620 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
621 | } | |
622 | #else | |
623 | select_timeout.tv_sec = 0; | |
624 | select_timeout.tv_usec = 50000; | |
625 | #endif | |
29508e1e | 626 | |
6f9dd67f | 627 | max_fd = -1; |
29508e1e NH |
628 | FD_ZERO(&readfds); |
629 | FD_ZERO(&writefds); | |
630 | FD_ZERO(&excfds); | |
6f9dd67f | 631 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 632 | |
6f9dd67f | 633 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
634 | } |
635 | } | |
636 | #else | |
637 | while (slot->in_use) { | |
638 | slot->curl_result = curl_easy_perform(slot->curl); | |
639 | finish_active_slot(slot); | |
640 | } | |
641 | #endif | |
642 | } | |
643 | ||
53f31389 | 644 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 645 | { |
028c2976 MH |
646 | active_requests--; |
647 | slot->in_use = 0; | |
53f31389 MW |
648 | } |
649 | ||
83e41e2e | 650 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
651 | { |
652 | closedown_active_slot(slot); | |
ad75ebe5 | 653 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 654 | #ifdef USE_CURL_MULTI |
53f31389 | 655 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 656 | #endif |
53f31389 MW |
657 | curl_easy_cleanup(slot->curl); |
658 | slot->curl = NULL; | |
ad75ebe5 | 659 | curl_session_count--; |
53f31389 | 660 | } |
b3ca4e4e | 661 | #ifdef USE_CURL_MULTI |
53f31389 | 662 | fill_active_slots(); |
b3ca4e4e | 663 | #endif |
53f31389 MW |
664 | } |
665 | ||
de1a2fdd | 666 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
667 | { |
668 | closedown_active_slot(slot); | |
028c2976 | 669 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 670 | |
baa7b67d NH |
671 | if (slot->finished != NULL) |
672 | (*slot->finished) = 1; | |
673 | ||
c8568e13 NH |
674 | /* Store slot results so they can be read after the slot is reused */ |
675 | if (slot->results != NULL) { | |
676 | slot->results->curl_result = slot->curl_result; | |
677 | slot->results->http_code = slot->http_code; | |
678 | } | |
679 | ||
028c2976 | 680 | /* Run callback if appropriate */ |
4251ccbd | 681 | if (slot->callback_func != NULL) |
028c2976 | 682 | slot->callback_func(slot->callback_data); |
29508e1e NH |
683 | } |
684 | ||
685 | void finish_all_active_slots(void) | |
686 | { | |
687 | struct active_request_slot *slot = active_queue_head; | |
688 | ||
689 | while (slot != NULL) | |
690 | if (slot->in_use) { | |
691 | run_active_slot(slot); | |
692 | slot = active_queue_head; | |
693 | } else { | |
694 | slot = slot->next; | |
695 | } | |
696 | } | |
d7e92806 | 697 | |
5ace994f | 698 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
699 | static inline int needs_quote(int ch) |
700 | { | |
701 | if (((ch >= 'A') && (ch <= 'Z')) | |
702 | || ((ch >= 'a') && (ch <= 'z')) | |
703 | || ((ch >= '0') && (ch <= '9')) | |
704 | || (ch == '/') | |
705 | || (ch == '-') | |
706 | || (ch == '.')) | |
707 | return 0; | |
708 | return 1; | |
709 | } | |
710 | ||
d7e92806 MH |
711 | static char *quote_ref_url(const char *base, const char *ref) |
712 | { | |
113106e0 | 713 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 714 | const char *cp; |
113106e0 | 715 | int ch; |
d7e92806 | 716 | |
5ace994f | 717 | end_url_with_slash(&buf, base); |
113106e0 TRC |
718 | |
719 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 720 | if (needs_quote(ch)) |
113106e0 | 721 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 722 | else |
113106e0 | 723 | strbuf_addch(&buf, *cp); |
d7e92806 | 724 | |
113106e0 | 725 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
726 | } |
727 | ||
5424bc55 TRC |
728 | void append_remote_object_url(struct strbuf *buf, const char *url, |
729 | const char *hex, | |
730 | int only_two_digit_prefix) | |
731 | { | |
800324c3 TRC |
732 | end_url_with_slash(buf, url); |
733 | ||
734 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
735 | if (!only_two_digit_prefix) |
736 | strbuf_addf(buf, "%s", hex+2); | |
737 | } | |
738 | ||
739 | char *get_remote_object_url(const char *url, const char *hex, | |
740 | int only_two_digit_prefix) | |
741 | { | |
742 | struct strbuf buf = STRBUF_INIT; | |
743 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
744 | return strbuf_detach(&buf, NULL); | |
745 | } | |
746 | ||
e929cd20 MH |
747 | /* http_request() targets */ |
748 | #define HTTP_REQUEST_STRBUF 0 | |
749 | #define HTTP_REQUEST_FILE 1 | |
750 | ||
751 | static int http_request(const char *url, void *result, int target, int options) | |
752 | { | |
753 | struct active_request_slot *slot; | |
754 | struct slot_results results; | |
755 | struct curl_slist *headers = NULL; | |
756 | struct strbuf buf = STRBUF_INIT; | |
757 | int ret; | |
758 | ||
759 | slot = get_active_slot(); | |
760 | slot->results = &results; | |
761 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
762 | ||
763 | if (result == NULL) { | |
764 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
765 | } else { | |
766 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
767 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
768 | ||
769 | if (target == HTTP_REQUEST_FILE) { | |
770 | long posn = ftell(result); | |
771 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
772 | fwrite); | |
773 | if (posn > 0) { | |
774 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
775 | headers = curl_slist_append(headers, buf.buf); | |
776 | strbuf_reset(&buf); | |
777 | } | |
e929cd20 MH |
778 | } else |
779 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
780 | fwrite_buffer); | |
781 | } | |
782 | ||
783 | strbuf_addstr(&buf, "Pragma:"); | |
784 | if (options & HTTP_NO_CACHE) | |
785 | strbuf_addstr(&buf, " no-cache"); | |
786 | ||
787 | headers = curl_slist_append(headers, buf.buf); | |
788 | ||
789 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
790 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
791 | ||
792 | if (start_active_slot(slot)) { | |
793 | run_active_slot(slot); | |
794 | if (results.curl_result == CURLE_OK) | |
795 | ret = HTTP_OK; | |
796 | else if (missing_target(&results)) | |
797 | ret = HTTP_MISSING_TARGET; | |
42653c09 | 798 | else if (results.http_code == 401) { |
148bb6a7 JK |
799 | if (http_auth.username && http_auth.password) { |
800 | credential_reject(&http_auth); | |
42653c09 SC |
801 | ret = HTTP_NOAUTH; |
802 | } else { | |
148bb6a7 | 803 | credential_fill(&http_auth); |
42653c09 SC |
804 | init_curl_http_auth(slot->curl); |
805 | ret = HTTP_REAUTH; | |
806 | } | |
be22d92e JN |
807 | } else { |
808 | if (!curl_errorstr[0]) | |
809 | strlcpy(curl_errorstr, | |
810 | curl_easy_strerror(results.curl_result), | |
811 | sizeof(curl_errorstr)); | |
e929cd20 | 812 | ret = HTTP_ERROR; |
be22d92e | 813 | } |
e929cd20 MH |
814 | } else { |
815 | error("Unable to start HTTP request for %s", url); | |
816 | ret = HTTP_START_FAILED; | |
817 | } | |
818 | ||
e929cd20 MH |
819 | curl_slist_free_all(headers); |
820 | strbuf_release(&buf); | |
821 | ||
148bb6a7 JK |
822 | if (ret == HTTP_OK) |
823 | credential_approve(&http_auth); | |
824 | ||
e929cd20 MH |
825 | return ret; |
826 | } | |
827 | ||
8d677edc JK |
828 | static int http_request_reauth(const char *url, void *result, int target, |
829 | int options) | |
830 | { | |
831 | int ret = http_request(url, result, target, options); | |
832 | if (ret != HTTP_REAUTH) | |
833 | return ret; | |
834 | return http_request(url, result, target, options); | |
835 | } | |
836 | ||
e929cd20 MH |
837 | int http_get_strbuf(const char *url, struct strbuf *result, int options) |
838 | { | |
8d677edc | 839 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
840 | } |
841 | ||
83e41e2e | 842 | /* |
a7793a74 | 843 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
844 | * |
845 | * If a previous interrupted download is detected (i.e. a previous temporary | |
846 | * file is still around) the download is resumed. | |
847 | */ | |
848 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
849 | { |
850 | int ret; | |
851 | struct strbuf tmpfile = STRBUF_INIT; | |
852 | FILE *result; | |
853 | ||
854 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
855 | result = fopen(tmpfile.buf, "a"); | |
856 | if (! result) { | |
857 | error("Unable to open local file %s", tmpfile.buf); | |
858 | ret = HTTP_ERROR; | |
859 | goto cleanup; | |
860 | } | |
861 | ||
8d677edc | 862 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
863 | fclose(result); |
864 | ||
865 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
866 | ret = HTTP_ERROR; | |
867 | cleanup: | |
868 | strbuf_release(&tmpfile); | |
869 | return ret; | |
870 | } | |
871 | ||
872 | int http_error(const char *url, int ret) | |
873 | { | |
874 | /* http_request has already handled HTTP_START_FAILED. */ | |
875 | if (ret != HTTP_START_FAILED) | |
8abc5082 | 876 | error("%s while accessing %s", curl_errorstr, url); |
e929cd20 MH |
877 | |
878 | return ret; | |
879 | } | |
880 | ||
c13b2633 | 881 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
882 | { |
883 | char *url; | |
884 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 885 | int ret = -1; |
d7e92806 | 886 | |
c13b2633 | 887 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
888 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
889 | strbuf_rtrim(&buffer); | |
890 | if (buffer.len == 40) | |
891 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
892 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
893 | ref->symref = xstrdup(buffer.buf + 5); | |
894 | ret = 0; | |
d7e92806 | 895 | } |
d7e92806 MH |
896 | } |
897 | ||
898 | strbuf_release(&buffer); | |
899 | free(url); | |
900 | return ret; | |
901 | } | |
b8caac2b TRC |
902 | |
903 | /* Helpers for fetching packs */ | |
750ef425 | 904 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 905 | { |
750ef425 | 906 | char *url, *tmp; |
b8caac2b | 907 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 908 | |
b8caac2b | 909 | if (http_is_verbose) |
162eb5f8 | 910 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
911 | |
912 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 913 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
914 | url = strbuf_detach(&buf, NULL); |
915 | ||
750ef425 SP |
916 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
917 | tmp = strbuf_detach(&buf, NULL); | |
918 | ||
919 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
82247e9b | 920 | error("Unable to get pack index %s", url); |
750ef425 SP |
921 | free(tmp); |
922 | tmp = NULL; | |
923 | } | |
b8caac2b | 924 | |
b8caac2b | 925 | free(url); |
750ef425 | 926 | return tmp; |
b8caac2b TRC |
927 | } |
928 | ||
929 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
930 | unsigned char *sha1, const char *base_url) | |
931 | { | |
932 | struct packed_git *new_pack; | |
750ef425 SP |
933 | char *tmp_idx = NULL; |
934 | int ret; | |
b8caac2b | 935 | |
750ef425 SP |
936 | if (has_pack_index(sha1)) { |
937 | new_pack = parse_pack_index(sha1, NULL); | |
938 | if (!new_pack) | |
939 | return -1; /* parse_pack_index() already issued error message */ | |
940 | goto add_pack; | |
941 | } | |
942 | ||
943 | tmp_idx = fetch_pack_index(sha1, base_url); | |
944 | if (!tmp_idx) | |
b8caac2b TRC |
945 | return -1; |
946 | ||
750ef425 SP |
947 | new_pack = parse_pack_index(sha1, tmp_idx); |
948 | if (!new_pack) { | |
949 | unlink(tmp_idx); | |
950 | free(tmp_idx); | |
951 | ||
b8caac2b | 952 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
953 | } |
954 | ||
955 | ret = verify_pack_index(new_pack); | |
956 | if (!ret) { | |
957 | close_pack_index(new_pack); | |
958 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
959 | } | |
960 | free(tmp_idx); | |
961 | if (ret) | |
962 | return -1; | |
963 | ||
964 | add_pack: | |
b8caac2b TRC |
965 | new_pack->next = *packs_head; |
966 | *packs_head = new_pack; | |
967 | return 0; | |
968 | } | |
969 | ||
970 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
971 | { | |
972 | int ret = 0, i = 0; | |
973 | char *url, *data; | |
974 | struct strbuf buf = STRBUF_INIT; | |
975 | unsigned char sha1[20]; | |
976 | ||
977 | end_url_with_slash(&buf, base_url); | |
978 | strbuf_addstr(&buf, "objects/info/packs"); | |
979 | url = strbuf_detach(&buf, NULL); | |
980 | ||
981 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
982 | if (ret != HTTP_OK) | |
983 | goto cleanup; | |
984 | ||
985 | data = buf.buf; | |
986 | while (i < buf.len) { | |
987 | switch (data[i]) { | |
988 | case 'P': | |
989 | i++; | |
990 | if (i + 52 <= buf.len && | |
991 | !prefixcmp(data + i, " pack-") && | |
992 | !prefixcmp(data + i + 46, ".pack\n")) { | |
993 | get_sha1_hex(data + i + 6, sha1); | |
994 | fetch_and_setup_pack_index(packs_head, sha1, | |
995 | base_url); | |
996 | i += 51; | |
997 | break; | |
998 | } | |
999 | default: | |
1000 | while (i < buf.len && data[i] != '\n') | |
1001 | i++; | |
1002 | } | |
1003 | i++; | |
1004 | } | |
1005 | ||
1006 | cleanup: | |
1007 | free(url); | |
1008 | return ret; | |
1009 | } | |
2264dfa5 TRC |
1010 | |
1011 | void release_http_pack_request(struct http_pack_request *preq) | |
1012 | { | |
1013 | if (preq->packfile != NULL) { | |
1014 | fclose(preq->packfile); | |
1015 | preq->packfile = NULL; | |
2264dfa5 TRC |
1016 | } |
1017 | if (preq->range_header != NULL) { | |
1018 | curl_slist_free_all(preq->range_header); | |
1019 | preq->range_header = NULL; | |
1020 | } | |
1021 | preq->slot = NULL; | |
1022 | free(preq->url); | |
1023 | } | |
1024 | ||
1025 | int finish_http_pack_request(struct http_pack_request *preq) | |
1026 | { | |
2264dfa5 | 1027 | struct packed_git **lst; |
021ab6f0 | 1028 | struct packed_git *p = preq->target; |
fe72d420 SP |
1029 | char *tmp_idx; |
1030 | struct child_process ip; | |
1031 | const char *ip_argv[8]; | |
2264dfa5 | 1032 | |
fe72d420 | 1033 | close_pack_index(p); |
2264dfa5 | 1034 | |
3065274c SP |
1035 | fclose(preq->packfile); |
1036 | preq->packfile = NULL; | |
2264dfa5 TRC |
1037 | |
1038 | lst = preq->lst; | |
021ab6f0 | 1039 | while (*lst != p) |
2264dfa5 TRC |
1040 | lst = &((*lst)->next); |
1041 | *lst = (*lst)->next; | |
1042 | ||
fe72d420 SP |
1043 | tmp_idx = xstrdup(preq->tmpfile); |
1044 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1045 | ".idx.temp"); | |
1046 | ||
1047 | ip_argv[0] = "index-pack"; | |
1048 | ip_argv[1] = "-o"; | |
1049 | ip_argv[2] = tmp_idx; | |
1050 | ip_argv[3] = preq->tmpfile; | |
1051 | ip_argv[4] = NULL; | |
1052 | ||
1053 | memset(&ip, 0, sizeof(ip)); | |
1054 | ip.argv = ip_argv; | |
1055 | ip.git_cmd = 1; | |
1056 | ip.no_stdin = 1; | |
1057 | ip.no_stdout = 1; | |
1058 | ||
1059 | if (run_command(&ip)) { | |
1060 | unlink(preq->tmpfile); | |
1061 | unlink(tmp_idx); | |
1062 | free(tmp_idx); | |
2264dfa5 | 1063 | return -1; |
fe72d420 SP |
1064 | } |
1065 | ||
1066 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1067 | |
fe72d420 SP |
1068 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1069 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1070 | free(tmp_idx); | |
2264dfa5 | 1071 | return -1; |
fe72d420 | 1072 | } |
2264dfa5 | 1073 | |
fe72d420 SP |
1074 | install_packed_git(p); |
1075 | free(tmp_idx); | |
2264dfa5 TRC |
1076 | return 0; |
1077 | } | |
1078 | ||
1079 | struct http_pack_request *new_http_pack_request( | |
1080 | struct packed_git *target, const char *base_url) | |
1081 | { | |
2264dfa5 TRC |
1082 | long prev_posn = 0; |
1083 | char range[RANGE_HEADER_SIZE]; | |
1084 | struct strbuf buf = STRBUF_INIT; | |
1085 | struct http_pack_request *preq; | |
1086 | ||
ec99c9a8 | 1087 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1088 | preq->target = target; |
2264dfa5 TRC |
1089 | |
1090 | end_url_with_slash(&buf, base_url); | |
1091 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1092 | sha1_to_hex(target->sha1)); | |
bb99190e | 1093 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1094 | |
90d05713 TRC |
1095 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1096 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1097 | preq->packfile = fopen(preq->tmpfile, "a"); |
1098 | if (!preq->packfile) { | |
1099 | error("Unable to open local file %s for pack", | |
1100 | preq->tmpfile); | |
1101 | goto abort; | |
1102 | } | |
1103 | ||
1104 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
1105 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
1106 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1107 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1108 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1109 | no_pragma_header); | |
1110 | ||
1111 | /* | |
1112 | * If there is data present from a previous transfer attempt, | |
1113 | * resume where it left off | |
1114 | */ | |
1115 | prev_posn = ftell(preq->packfile); | |
1116 | if (prev_posn>0) { | |
1117 | if (http_is_verbose) | |
1118 | fprintf(stderr, | |
1119 | "Resuming fetch of pack %s at byte %ld\n", | |
1120 | sha1_to_hex(target->sha1), prev_posn); | |
1121 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1122 | preq->range_header = curl_slist_append(NULL, range); | |
1123 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1124 | preq->range_header); | |
1125 | } | |
1126 | ||
1127 | return preq; | |
1128 | ||
1129 | abort: | |
bb99190e | 1130 | free(preq->url); |
5ae9ebfd | 1131 | free(preq); |
2264dfa5 TRC |
1132 | return NULL; |
1133 | } | |
5424bc55 TRC |
1134 | |
1135 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1136 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1137 | void *data) |
1138 | { | |
1139 | unsigned char expn[4096]; | |
1140 | size_t size = eltsize * nmemb; | |
1141 | int posn = 0; | |
1142 | struct http_object_request *freq = | |
1143 | (struct http_object_request *)data; | |
1144 | do { | |
1145 | ssize_t retval = xwrite(freq->localfile, | |
1146 | (char *) ptr + posn, size - posn); | |
1147 | if (retval < 0) | |
1148 | return posn; | |
1149 | posn += retval; | |
1150 | } while (posn < size); | |
1151 | ||
1152 | freq->stream.avail_in = size; | |
a04ff3ec | 1153 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1154 | do { |
1155 | freq->stream.next_out = expn; | |
1156 | freq->stream.avail_out = sizeof(expn); | |
1157 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1158 | git_SHA1_Update(&freq->c, expn, | |
1159 | sizeof(expn) - freq->stream.avail_out); | |
1160 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
5424bc55 TRC |
1161 | return size; |
1162 | } | |
1163 | ||
1164 | struct http_object_request *new_http_object_request(const char *base_url, | |
1165 | unsigned char *sha1) | |
1166 | { | |
1167 | char *hex = sha1_to_hex(sha1); | |
1168 | char *filename; | |
1169 | char prevfile[PATH_MAX]; | |
5424bc55 | 1170 | int prevlocal; |
a04ff3ec | 1171 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1172 | ssize_t prev_read = 0; |
1173 | long prev_posn = 0; | |
1174 | char range[RANGE_HEADER_SIZE]; | |
1175 | struct curl_slist *range_header = NULL; | |
1176 | struct http_object_request *freq; | |
1177 | ||
ec99c9a8 | 1178 | freq = xcalloc(1, sizeof(*freq)); |
5424bc55 TRC |
1179 | hashcpy(freq->sha1, sha1); |
1180 | freq->localfile = -1; | |
1181 | ||
1182 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1183 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1184 | "%s.temp", filename); | |
1185 | ||
1186 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1187 | unlink_or_warn(prevfile); | |
1188 | rename(freq->tmpfile, prevfile); | |
1189 | unlink_or_warn(freq->tmpfile); | |
1190 | ||
1191 | if (freq->localfile != -1) | |
1192 | error("fd leakage in start: %d", freq->localfile); | |
1193 | freq->localfile = open(freq->tmpfile, | |
1194 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1195 | /* | |
1196 | * This could have failed due to the "lazy directory creation"; | |
1197 | * try to mkdir the last path component. | |
1198 | */ | |
1199 | if (freq->localfile < 0 && errno == ENOENT) { | |
1200 | char *dir = strrchr(freq->tmpfile, '/'); | |
1201 | if (dir) { | |
1202 | *dir = 0; | |
1203 | mkdir(freq->tmpfile, 0777); | |
1204 | *dir = '/'; | |
1205 | } | |
1206 | freq->localfile = open(freq->tmpfile, | |
1207 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1208 | } | |
1209 | ||
1210 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1211 | error("Couldn't create temporary file %s: %s", |
1212 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1213 | goto abort; |
1214 | } | |
1215 | ||
5424bc55 TRC |
1216 | git_inflate_init(&freq->stream); |
1217 | ||
1218 | git_SHA1_Init(&freq->c); | |
1219 | ||
bb99190e | 1220 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1221 | |
1222 | /* | |
1223 | * If a previous temp file is present, process what was already | |
1224 | * fetched. | |
1225 | */ | |
1226 | prevlocal = open(prevfile, O_RDONLY); | |
1227 | if (prevlocal != -1) { | |
1228 | do { | |
1229 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1230 | if (prev_read>0) { | |
1231 | if (fwrite_sha1_file(prev_buf, | |
1232 | 1, | |
1233 | prev_read, | |
1234 | freq) == prev_read) { | |
1235 | prev_posn += prev_read; | |
1236 | } else { | |
1237 | prev_read = -1; | |
1238 | } | |
1239 | } | |
1240 | } while (prev_read > 0); | |
1241 | close(prevlocal); | |
1242 | } | |
1243 | unlink_or_warn(prevfile); | |
1244 | ||
1245 | /* | |
1246 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1247 | * file; also rewind to the beginning of the local file. | |
1248 | */ | |
1249 | if (prev_read == -1) { | |
1250 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1251 | git_inflate_init(&freq->stream); | |
1252 | git_SHA1_Init(&freq->c); | |
1253 | if (prev_posn>0) { | |
1254 | prev_posn = 0; | |
1255 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1256 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1257 | error("Couldn't truncate temporary file %s: %s", |
1258 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1259 | goto abort; |
1260 | } | |
5424bc55 TRC |
1261 | } |
1262 | } | |
1263 | ||
1264 | freq->slot = get_active_slot(); | |
1265 | ||
1266 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1267 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1268 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1269 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1270 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1271 | ||
1272 | /* | |
1273 | * If we have successfully processed data from a previous fetch | |
1274 | * attempt, only fetch the data we don't already have. | |
1275 | */ | |
1276 | if (prev_posn>0) { | |
1277 | if (http_is_verbose) | |
1278 | fprintf(stderr, | |
1279 | "Resuming fetch of object %s at byte %ld\n", | |
1280 | hex, prev_posn); | |
1281 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1282 | range_header = curl_slist_append(range_header, range); | |
1283 | curl_easy_setopt(freq->slot->curl, | |
1284 | CURLOPT_HTTPHEADER, range_header); | |
1285 | } | |
1286 | ||
1287 | return freq; | |
1288 | ||
5424bc55 | 1289 | abort: |
bb99190e | 1290 | free(freq->url); |
5424bc55 TRC |
1291 | free(freq); |
1292 | return NULL; | |
1293 | } | |
1294 | ||
1295 | void process_http_object_request(struct http_object_request *freq) | |
1296 | { | |
1297 | if (freq->slot == NULL) | |
1298 | return; | |
1299 | freq->curl_result = freq->slot->curl_result; | |
1300 | freq->http_code = freq->slot->http_code; | |
1301 | freq->slot = NULL; | |
1302 | } | |
1303 | ||
1304 | int finish_http_object_request(struct http_object_request *freq) | |
1305 | { | |
1306 | struct stat st; | |
1307 | ||
1308 | close(freq->localfile); | |
1309 | freq->localfile = -1; | |
1310 | ||
1311 | process_http_object_request(freq); | |
1312 | ||
1313 | if (freq->http_code == 416) { | |
bd757c18 | 1314 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1315 | } else if (freq->curl_result != CURLE_OK) { |
1316 | if (stat(freq->tmpfile, &st) == 0) | |
1317 | if (st.st_size == 0) | |
1318 | unlink_or_warn(freq->tmpfile); | |
1319 | return -1; | |
1320 | } | |
1321 | ||
1322 | git_inflate_end(&freq->stream); | |
1323 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1324 | if (freq->zret != Z_STREAM_END) { | |
1325 | unlink_or_warn(freq->tmpfile); | |
1326 | return -1; | |
1327 | } | |
1328 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1329 | unlink_or_warn(freq->tmpfile); | |
1330 | return -1; | |
1331 | } | |
1332 | freq->rename = | |
0da8b2e7 | 1333 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1334 | |
1335 | return freq->rename; | |
1336 | } | |
1337 | ||
1338 | void abort_http_object_request(struct http_object_request *freq) | |
1339 | { | |
1340 | unlink_or_warn(freq->tmpfile); | |
1341 | ||
1342 | release_http_object_request(freq); | |
1343 | } | |
1344 | ||
1345 | void release_http_object_request(struct http_object_request *freq) | |
1346 | { | |
1347 | if (freq->localfile != -1) { | |
1348 | close(freq->localfile); | |
1349 | freq->localfile = -1; | |
1350 | } | |
1351 | if (freq->url != NULL) { | |
1352 | free(freq->url); | |
1353 | freq->url = NULL; | |
1354 | } | |
4b9fa0e3 TRC |
1355 | if (freq->slot != NULL) { |
1356 | freq->slot->callback_func = NULL; | |
1357 | freq->slot->callback_data = NULL; | |
1358 | release_active_slot(freq->slot); | |
1359 | freq->slot = NULL; | |
1360 | } | |
5424bc55 | 1361 | } |