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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" |
29508e1e NH |
5 | |
6 | int data_received; | |
4251ccbd | 7 | int active_requests; |
e9176745 | 8 | int http_is_verbose; |
de1a2fdd | 9 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 10 | |
b8ac9230 MS |
11 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
12 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
13 | #endif | |
14 | ||
ad75ebe5 TRC |
15 | static int min_curl_sessions = 1; |
16 | static int curl_session_count; | |
29508e1e | 17 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
18 | static int max_requests = -1; |
19 | static CURLM *curlm; | |
29508e1e NH |
20 | #endif |
21 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 22 | static CURL *curl_default; |
29508e1e | 23 | #endif |
5424bc55 TRC |
24 | |
25 | #define PREV_BUF_SIZE 4096 | |
26 | #define RANGE_HEADER_SIZE 30 | |
27 | ||
29508e1e NH |
28 | char curl_errorstr[CURL_ERROR_SIZE]; |
29 | ||
cc3530e8 | 30 | static int curl_ssl_verify = -1; |
4251ccbd | 31 | static const char *ssl_cert; |
ef52aafa | 32 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 33 | static const char *ssl_key; |
29508e1e NH |
34 | #endif |
35 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 36 | static const char *ssl_capath; |
29508e1e | 37 | #endif |
4251ccbd | 38 | static const char *ssl_cainfo; |
cc3530e8 MH |
39 | static long curl_low_speed_limit = -1; |
40 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
41 | static int curl_ftp_no_epsv; |
42 | static const char *curl_http_proxy; | |
c33976cb | 43 | static char *user_name, *user_pass; |
29508e1e | 44 | |
30dd9163 ML |
45 | #if LIBCURL_VERSION_NUM >= 0x071700 |
46 | /* Use CURLOPT_KEYPASSWD as is */ | |
47 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
48 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
49 | #else | |
50 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
51 | #endif | |
52 | ||
53 | static char *ssl_cert_password; | |
54 | static int ssl_cert_password_required; | |
55 | ||
cc3530e8 | 56 | static struct curl_slist *pragma_header; |
5424bc55 | 57 | static struct curl_slist *no_pragma_header; |
e9176745 | 58 | |
4251ccbd | 59 | static struct active_request_slot *active_queue_head; |
29508e1e | 60 | |
f444e528 | 61 | size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
62 | { |
63 | size_t size = eltsize * nmemb; | |
f444e528 JH |
64 | struct buffer *buffer = buffer_; |
65 | ||
028c2976 MH |
66 | if (size > buffer->buf.len - buffer->posn) |
67 | size = buffer->buf.len - buffer->posn; | |
68 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 69 | buffer->posn += size; |
028c2976 | 70 | |
29508e1e NH |
71 | return size; |
72 | } | |
73 | ||
3944ba0c MS |
74 | #ifndef NO_CURL_IOCTL |
75 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
76 | { | |
77 | struct buffer *buffer = clientp; | |
78 | ||
79 | switch (cmd) { | |
80 | case CURLIOCMD_NOP: | |
81 | return CURLIOE_OK; | |
82 | ||
83 | case CURLIOCMD_RESTARTREAD: | |
84 | buffer->posn = 0; | |
85 | return CURLIOE_OK; | |
86 | ||
87 | default: | |
88 | return CURLIOE_UNKNOWNCMD; | |
89 | } | |
90 | } | |
91 | #endif | |
92 | ||
f444e528 | 93 | size_t fwrite_buffer(const void *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
94 | { |
95 | size_t size = eltsize * nmemb; | |
f444e528 JH |
96 | struct strbuf *buffer = buffer_; |
97 | ||
028c2976 | 98 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
99 | data_received++; |
100 | return size; | |
101 | } | |
102 | ||
f444e528 | 103 | size_t fwrite_null(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e NH |
104 | { |
105 | data_received++; | |
106 | return eltsize * nmemb; | |
107 | } | |
108 | ||
29508e1e NH |
109 | #ifdef USE_CURL_MULTI |
110 | static void process_curl_messages(void) | |
111 | { | |
112 | int num_messages; | |
113 | struct active_request_slot *slot; | |
114 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
115 | ||
116 | while (curl_message != NULL) { | |
117 | if (curl_message->msg == CURLMSG_DONE) { | |
118 | int curl_result = curl_message->data.result; | |
119 | slot = active_queue_head; | |
120 | while (slot != NULL && | |
121 | slot->curl != curl_message->easy_handle) | |
122 | slot = slot->next; | |
123 | if (slot != NULL) { | |
124 | curl_multi_remove_handle(curlm, slot->curl); | |
125 | slot->curl_result = curl_result; | |
126 | finish_active_slot(slot); | |
127 | } else { | |
128 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
129 | } | |
130 | } else { | |
131 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
132 | (int)curl_message->msg); | |
133 | } | |
134 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
135 | } | |
136 | } | |
137 | #endif | |
138 | ||
ef90d6d4 | 139 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
140 | { |
141 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 142 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
143 | return 0; |
144 | } | |
7059cd99 JH |
145 | if (!strcmp("http.sslcert", var)) |
146 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 147 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
148 | if (!strcmp("http.sslkey", var)) |
149 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
150 | #endif |
151 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
152 | if (!strcmp("http.sslcapath", var)) |
153 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 154 | #endif |
7059cd99 JH |
155 | if (!strcmp("http.sslcainfo", var)) |
156 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 ML |
157 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
158 | if (git_config_bool(var, value)) | |
159 | ssl_cert_password_required = 1; | |
160 | return 0; | |
161 | } | |
ad75ebe5 TRC |
162 | if (!strcmp("http.minsessions", var)) { |
163 | min_curl_sessions = git_config_int(var, value); | |
164 | #ifndef USE_CURL_MULTI | |
165 | if (min_curl_sessions > 1) | |
166 | min_curl_sessions = 1; | |
167 | #endif | |
168 | return 0; | |
169 | } | |
a6080a0a | 170 | #ifdef USE_CURL_MULTI |
29508e1e | 171 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 172 | max_requests = git_config_int(var, value); |
29508e1e NH |
173 | return 0; |
174 | } | |
175 | #endif | |
29508e1e | 176 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 177 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
178 | return 0; |
179 | } | |
180 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 181 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
182 | return 0; |
183 | } | |
184 | ||
3ea099d4 SK |
185 | if (!strcmp("http.noepsv", var)) { |
186 | curl_ftp_no_epsv = git_config_bool(var, value); | |
187 | return 0; | |
188 | } | |
7059cd99 JH |
189 | if (!strcmp("http.proxy", var)) |
190 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 191 | |
de1a2fdd SP |
192 | if (!strcmp("http.postbuffer", var)) { |
193 | http_post_buffer = git_config_int(var, value); | |
194 | if (http_post_buffer < LARGE_PACKET_MAX) | |
195 | http_post_buffer = LARGE_PACKET_MAX; | |
196 | return 0; | |
197 | } | |
198 | ||
29508e1e | 199 | /* Fall back on the default ones */ |
ef90d6d4 | 200 | return git_default_config(var, value, cb); |
29508e1e NH |
201 | } |
202 | ||
c33976cb JH |
203 | static void init_curl_http_auth(CURL *result) |
204 | { | |
750d9305 | 205 | if (user_name) { |
c33976cb JH |
206 | struct strbuf up = STRBUF_INIT; |
207 | if (!user_pass) | |
f206063b | 208 | user_pass = xstrdup(git_getpass("Password: ")); |
c33976cb JH |
209 | strbuf_addf(&up, "%s:%s", user_name, user_pass); |
210 | curl_easy_setopt(result, CURLOPT_USERPWD, | |
211 | strbuf_detach(&up, NULL)); | |
212 | } | |
213 | } | |
214 | ||
30dd9163 ML |
215 | static int has_cert_password(void) |
216 | { | |
217 | if (ssl_cert_password != NULL) | |
218 | return 1; | |
219 | if (ssl_cert == NULL || ssl_cert_password_required != 1) | |
220 | return 0; | |
221 | /* Only prompt the user once. */ | |
222 | ssl_cert_password_required = -1; | |
f206063b | 223 | ssl_cert_password = git_getpass("Certificate Password: "); |
30dd9163 ML |
224 | if (ssl_cert_password != NULL) { |
225 | ssl_cert_password = xstrdup(ssl_cert_password); | |
226 | return 1; | |
227 | } else | |
228 | return 0; | |
229 | } | |
230 | ||
4251ccbd | 231 | static CURL *get_curl_handle(void) |
11979b98 | 232 | { |
4251ccbd | 233 | CURL *result = curl_easy_init(); |
11979b98 | 234 | |
a5ccc597 JH |
235 | if (!curl_ssl_verify) { |
236 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
237 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
238 | } else { | |
239 | /* Verify authenticity of the peer's certificate */ | |
240 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
241 | /* The name in the cert must match whom we tried to connect */ | |
242 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
243 | } | |
244 | ||
11979b98 JH |
245 | #if LIBCURL_VERSION_NUM >= 0x070907 |
246 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
247 | #endif | |
b8ac9230 | 248 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 249 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 250 | #endif |
11979b98 | 251 | |
c33976cb JH |
252 | init_curl_http_auth(result); |
253 | ||
11979b98 JH |
254 | if (ssl_cert != NULL) |
255 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 ML |
256 | if (has_cert_password()) |
257 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, ssl_cert_password); | |
ef52aafa | 258 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
259 | if (ssl_key != NULL) |
260 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
261 | #endif | |
262 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
263 | if (ssl_capath != NULL) | |
264 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
265 | #endif | |
266 | if (ssl_cainfo != NULL) | |
267 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
268 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
269 | ||
270 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
271 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
272 | curl_low_speed_limit); | |
273 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
274 | curl_low_speed_time); | |
275 | } | |
276 | ||
277 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
278 | ||
7982d74e MW |
279 | if (getenv("GIT_CURL_VERBOSE")) |
280 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
281 | ||
20fc9bc5 NH |
282 | curl_easy_setopt(result, CURLOPT_USERAGENT, GIT_USER_AGENT); |
283 | ||
3ea099d4 SK |
284 | if (curl_ftp_no_epsv) |
285 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
286 | ||
9c5665aa SV |
287 | if (curl_http_proxy) |
288 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); | |
289 | ||
11979b98 JH |
290 | return result; |
291 | } | |
292 | ||
c33976cb JH |
293 | static void http_auth_init(const char *url) |
294 | { | |
295 | char *at, *colon, *cp, *slash; | |
296 | int len; | |
297 | ||
298 | cp = strstr(url, "://"); | |
299 | if (!cp) | |
300 | return; | |
301 | ||
302 | /* | |
303 | * Ok, the URL looks like "proto://something". Which one? | |
304 | * "proto://<user>:<pass>@<host>/...", | |
305 | * "proto://<user>@<host>/...", or just | |
306 | * "proto://<host>/..."? | |
307 | */ | |
308 | cp += 3; | |
309 | at = strchr(cp, '@'); | |
310 | colon = strchr(cp, ':'); | |
311 | slash = strchrnul(cp, '/'); | |
312 | if (!at || slash <= at) | |
313 | return; /* No credentials */ | |
314 | if (!colon || at <= colon) { | |
315 | /* Only username */ | |
316 | len = at - cp; | |
317 | user_name = xmalloc(len + 1); | |
318 | memcpy(user_name, cp, len); | |
319 | user_name[len] = '\0'; | |
320 | user_pass = NULL; | |
321 | } else { | |
322 | len = colon - cp; | |
323 | user_name = xmalloc(len + 1); | |
324 | memcpy(user_name, cp, len); | |
325 | user_name[len] = '\0'; | |
326 | len = at - (colon + 1); | |
327 | user_pass = xmalloc(len + 1); | |
328 | memcpy(user_pass, colon + 1, len); | |
329 | user_pass[len] = '\0'; | |
330 | } | |
331 | } | |
332 | ||
7059cd99 JH |
333 | static void set_from_env(const char **var, const char *envname) |
334 | { | |
335 | const char *val = getenv(envname); | |
336 | if (val) | |
337 | *var = val; | |
338 | } | |
339 | ||
9fc6440d | 340 | void http_init(struct remote *remote) |
29508e1e NH |
341 | { |
342 | char *low_speed_limit; | |
343 | char *low_speed_time; | |
344 | ||
e9176745 TRC |
345 | http_is_verbose = 0; |
346 | ||
7059cd99 JH |
347 | git_config(http_options, NULL); |
348 | ||
29508e1e NH |
349 | curl_global_init(CURL_GLOBAL_ALL); |
350 | ||
9fc6440d MH |
351 | if (remote && remote->http_proxy) |
352 | curl_http_proxy = xstrdup(remote->http_proxy); | |
353 | ||
29508e1e | 354 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 355 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
356 | |
357 | #ifdef USE_CURL_MULTI | |
358 | { | |
359 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
360 | if (http_max_requests != NULL) | |
361 | max_requests = atoi(http_max_requests); | |
362 | } | |
363 | ||
364 | curlm = curl_multi_init(); | |
365 | if (curlm == NULL) { | |
366 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
367 | exit(1); | |
368 | } | |
369 | #endif | |
370 | ||
371 | if (getenv("GIT_SSL_NO_VERIFY")) | |
372 | curl_ssl_verify = 0; | |
373 | ||
7059cd99 | 374 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 375 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 376 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
377 | #endif |
378 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 379 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 380 | #endif |
7059cd99 | 381 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e NH |
382 | |
383 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); | |
384 | if (low_speed_limit != NULL) | |
385 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
386 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
387 | if (low_speed_time != NULL) | |
388 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
389 | ||
29508e1e NH |
390 | if (curl_ssl_verify == -1) |
391 | curl_ssl_verify = 1; | |
392 | ||
ad75ebe5 | 393 | curl_session_count = 0; |
29508e1e NH |
394 | #ifdef USE_CURL_MULTI |
395 | if (max_requests < 1) | |
396 | max_requests = DEFAULT_MAX_REQUESTS; | |
397 | #endif | |
398 | ||
3ea099d4 SK |
399 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
400 | curl_ftp_no_epsv = 1; | |
401 | ||
30dd9163 | 402 | if (remote && remote->url && remote->url[0]) { |
c33976cb | 403 | http_auth_init(remote->url[0]); |
754ae192 ML |
404 | if (!ssl_cert_password_required && |
405 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
406 | !prefixcmp(remote->url[0], "https://")) | |
30dd9163 ML |
407 | ssl_cert_password_required = 1; |
408 | } | |
c33976cb | 409 | |
29508e1e NH |
410 | #ifndef NO_CURL_EASY_DUPHANDLE |
411 | curl_default = get_curl_handle(); | |
412 | #endif | |
413 | } | |
414 | ||
415 | void http_cleanup(void) | |
416 | { | |
417 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
418 | |
419 | while (slot != NULL) { | |
3278cd0a | 420 | struct active_request_slot *next = slot->next; |
f23d1f76 | 421 | if (slot->curl != NULL) { |
29508e1e | 422 | #ifdef USE_CURL_MULTI |
f23d1f76 | 423 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 424 | #endif |
29508e1e | 425 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 426 | } |
3278cd0a SP |
427 | free(slot); |
428 | slot = next; | |
29508e1e | 429 | } |
3278cd0a | 430 | active_queue_head = NULL; |
29508e1e NH |
431 | |
432 | #ifndef NO_CURL_EASY_DUPHANDLE | |
433 | curl_easy_cleanup(curl_default); | |
434 | #endif | |
435 | ||
436 | #ifdef USE_CURL_MULTI | |
437 | curl_multi_cleanup(curlm); | |
438 | #endif | |
439 | curl_global_cleanup(); | |
b3ca4e4e NH |
440 | |
441 | curl_slist_free_all(pragma_header); | |
3278cd0a | 442 | pragma_header = NULL; |
9fc6440d | 443 | |
e9176745 TRC |
444 | curl_slist_free_all(no_pragma_header); |
445 | no_pragma_header = NULL; | |
446 | ||
9fc6440d | 447 | if (curl_http_proxy) { |
e4a80ecf | 448 | free((void *)curl_http_proxy); |
9fc6440d MH |
449 | curl_http_proxy = NULL; |
450 | } | |
30dd9163 ML |
451 | |
452 | if (ssl_cert_password != NULL) { | |
453 | memset(ssl_cert_password, 0, strlen(ssl_cert_password)); | |
454 | free(ssl_cert_password); | |
455 | ssl_cert_password = NULL; | |
456 | } | |
457 | ssl_cert_password_required = 0; | |
29508e1e NH |
458 | } |
459 | ||
29508e1e NH |
460 | struct active_request_slot *get_active_slot(void) |
461 | { | |
462 | struct active_request_slot *slot = active_queue_head; | |
463 | struct active_request_slot *newslot; | |
464 | ||
465 | #ifdef USE_CURL_MULTI | |
466 | int num_transfers; | |
467 | ||
468 | /* Wait for a slot to open up if the queue is full */ | |
469 | while (active_requests >= max_requests) { | |
470 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 471 | if (num_transfers < active_requests) |
29508e1e | 472 | process_curl_messages(); |
29508e1e NH |
473 | } |
474 | #endif | |
475 | ||
4251ccbd | 476 | while (slot != NULL && slot->in_use) |
29508e1e | 477 | slot = slot->next; |
4251ccbd | 478 | |
29508e1e NH |
479 | if (slot == NULL) { |
480 | newslot = xmalloc(sizeof(*newslot)); | |
481 | newslot->curl = NULL; | |
482 | newslot->in_use = 0; | |
483 | newslot->next = NULL; | |
484 | ||
485 | slot = active_queue_head; | |
486 | if (slot == NULL) { | |
487 | active_queue_head = newslot; | |
488 | } else { | |
4251ccbd | 489 | while (slot->next != NULL) |
29508e1e | 490 | slot = slot->next; |
29508e1e NH |
491 | slot->next = newslot; |
492 | } | |
493 | slot = newslot; | |
494 | } | |
495 | ||
496 | if (slot->curl == NULL) { | |
497 | #ifdef NO_CURL_EASY_DUPHANDLE | |
498 | slot->curl = get_curl_handle(); | |
499 | #else | |
500 | slot->curl = curl_easy_duphandle(curl_default); | |
501 | #endif | |
ad75ebe5 | 502 | curl_session_count++; |
29508e1e NH |
503 | } |
504 | ||
505 | active_requests++; | |
506 | slot->in_use = 1; | |
507 | slot->local = NULL; | |
c8568e13 | 508 | slot->results = NULL; |
baa7b67d | 509 | slot->finished = NULL; |
29508e1e NH |
510 | slot->callback_data = NULL; |
511 | slot->callback_func = NULL; | |
512 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); | |
29508e1e | 513 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
514 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
515 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
516 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
517 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); | |
518 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
29508e1e NH |
519 | |
520 | return slot; | |
521 | } | |
522 | ||
523 | int start_active_slot(struct active_request_slot *slot) | |
524 | { | |
525 | #ifdef USE_CURL_MULTI | |
526 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 527 | int num_transfers; |
29508e1e NH |
528 | |
529 | if (curlm_result != CURLM_OK && | |
530 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
531 | active_requests--; | |
532 | slot->in_use = 0; | |
533 | return 0; | |
534 | } | |
45c17412 DB |
535 | |
536 | /* | |
537 | * We know there must be something to do, since we just added | |
538 | * something. | |
539 | */ | |
540 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
541 | #endif |
542 | return 1; | |
543 | } | |
544 | ||
545 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
546 | struct fill_chain { |
547 | void *data; | |
548 | int (*fill)(void *); | |
549 | struct fill_chain *next; | |
550 | }; | |
551 | ||
4251ccbd | 552 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
553 | |
554 | void add_fill_function(void *data, int (*fill)(void *)) | |
555 | { | |
e8eec71d | 556 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
557 | struct fill_chain **linkp = &fill_cfg; |
558 | new->data = data; | |
559 | new->fill = fill; | |
560 | new->next = NULL; | |
561 | while (*linkp) | |
562 | linkp = &(*linkp)->next; | |
563 | *linkp = new; | |
564 | } | |
565 | ||
45c17412 DB |
566 | void fill_active_slots(void) |
567 | { | |
568 | struct active_request_slot *slot = active_queue_head; | |
569 | ||
fc57b6aa DB |
570 | while (active_requests < max_requests) { |
571 | struct fill_chain *fill; | |
572 | for (fill = fill_cfg; fill; fill = fill->next) | |
573 | if (fill->fill(fill->data)) | |
574 | break; | |
575 | ||
576 | if (!fill) | |
45c17412 | 577 | break; |
fc57b6aa | 578 | } |
45c17412 DB |
579 | |
580 | while (slot != NULL) { | |
ad75ebe5 TRC |
581 | if (!slot->in_use && slot->curl != NULL |
582 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
583 | curl_easy_cleanup(slot->curl); |
584 | slot->curl = NULL; | |
ad75ebe5 | 585 | curl_session_count--; |
45c17412 DB |
586 | } |
587 | slot = slot->next; | |
588 | } | |
589 | } | |
590 | ||
29508e1e NH |
591 | void step_active_slots(void) |
592 | { | |
593 | int num_transfers; | |
594 | CURLMcode curlm_result; | |
595 | ||
596 | do { | |
597 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
598 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
599 | if (num_transfers < active_requests) { | |
600 | process_curl_messages(); | |
601 | fill_active_slots(); | |
602 | } | |
603 | } | |
604 | #endif | |
605 | ||
606 | void run_active_slot(struct active_request_slot *slot) | |
607 | { | |
608 | #ifdef USE_CURL_MULTI | |
609 | long last_pos = 0; | |
610 | long current_pos; | |
611 | fd_set readfds; | |
612 | fd_set writefds; | |
613 | fd_set excfds; | |
614 | int max_fd; | |
615 | struct timeval select_timeout; | |
baa7b67d | 616 | int finished = 0; |
29508e1e | 617 | |
baa7b67d NH |
618 | slot->finished = &finished; |
619 | while (!finished) { | |
29508e1e NH |
620 | data_received = 0; |
621 | step_active_slots(); | |
622 | ||
623 | if (!data_received && slot->local != NULL) { | |
624 | current_pos = ftell(slot->local); | |
625 | if (current_pos > last_pos) | |
626 | data_received++; | |
627 | last_pos = current_pos; | |
628 | } | |
629 | ||
630 | if (slot->in_use && !data_received) { | |
631 | max_fd = 0; | |
632 | FD_ZERO(&readfds); | |
633 | FD_ZERO(&writefds); | |
634 | FD_ZERO(&excfds); | |
635 | select_timeout.tv_sec = 0; | |
636 | select_timeout.tv_usec = 50000; | |
637 | select(max_fd, &readfds, &writefds, | |
638 | &excfds, &select_timeout); | |
639 | } | |
640 | } | |
641 | #else | |
642 | while (slot->in_use) { | |
643 | slot->curl_result = curl_easy_perform(slot->curl); | |
644 | finish_active_slot(slot); | |
645 | } | |
646 | #endif | |
647 | } | |
648 | ||
53f31389 | 649 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 650 | { |
028c2976 MH |
651 | active_requests--; |
652 | slot->in_use = 0; | |
53f31389 MW |
653 | } |
654 | ||
83e41e2e | 655 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
656 | { |
657 | closedown_active_slot(slot); | |
ad75ebe5 | 658 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 659 | #ifdef USE_CURL_MULTI |
53f31389 | 660 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 661 | #endif |
53f31389 MW |
662 | curl_easy_cleanup(slot->curl); |
663 | slot->curl = NULL; | |
ad75ebe5 | 664 | curl_session_count--; |
53f31389 | 665 | } |
b3ca4e4e | 666 | #ifdef USE_CURL_MULTI |
53f31389 | 667 | fill_active_slots(); |
b3ca4e4e | 668 | #endif |
53f31389 MW |
669 | } |
670 | ||
de1a2fdd | 671 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
672 | { |
673 | closedown_active_slot(slot); | |
028c2976 | 674 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 675 | |
baa7b67d NH |
676 | if (slot->finished != NULL) |
677 | (*slot->finished) = 1; | |
678 | ||
c8568e13 NH |
679 | /* Store slot results so they can be read after the slot is reused */ |
680 | if (slot->results != NULL) { | |
681 | slot->results->curl_result = slot->curl_result; | |
682 | slot->results->http_code = slot->http_code; | |
683 | } | |
684 | ||
028c2976 | 685 | /* Run callback if appropriate */ |
4251ccbd | 686 | if (slot->callback_func != NULL) |
028c2976 | 687 | slot->callback_func(slot->callback_data); |
29508e1e NH |
688 | } |
689 | ||
690 | void finish_all_active_slots(void) | |
691 | { | |
692 | struct active_request_slot *slot = active_queue_head; | |
693 | ||
694 | while (slot != NULL) | |
695 | if (slot->in_use) { | |
696 | run_active_slot(slot); | |
697 | slot = active_queue_head; | |
698 | } else { | |
699 | slot = slot->next; | |
700 | } | |
701 | } | |
d7e92806 | 702 | |
5ace994f | 703 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
704 | static inline int needs_quote(int ch) |
705 | { | |
706 | if (((ch >= 'A') && (ch <= 'Z')) | |
707 | || ((ch >= 'a') && (ch <= 'z')) | |
708 | || ((ch >= '0') && (ch <= '9')) | |
709 | || (ch == '/') | |
710 | || (ch == '-') | |
711 | || (ch == '.')) | |
712 | return 0; | |
713 | return 1; | |
714 | } | |
715 | ||
716 | static inline int hex(int v) | |
717 | { | |
4251ccbd JH |
718 | if (v < 10) |
719 | return '0' + v; | |
720 | else | |
721 | return 'A' + v - 10; | |
d7e92806 MH |
722 | } |
723 | ||
eb9d47cf | 724 | void end_url_with_slash(struct strbuf *buf, const char *url) |
5ace994f TRC |
725 | { |
726 | strbuf_addstr(buf, url); | |
727 | if (buf->len && buf->buf[buf->len - 1] != '/') | |
728 | strbuf_addstr(buf, "/"); | |
729 | } | |
730 | ||
d7e92806 MH |
731 | static char *quote_ref_url(const char *base, const char *ref) |
732 | { | |
113106e0 | 733 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 734 | const char *cp; |
113106e0 | 735 | int ch; |
d7e92806 | 736 | |
5ace994f | 737 | end_url_with_slash(&buf, base); |
113106e0 TRC |
738 | |
739 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 740 | if (needs_quote(ch)) |
113106e0 | 741 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 742 | else |
113106e0 | 743 | strbuf_addch(&buf, *cp); |
d7e92806 | 744 | |
113106e0 | 745 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
746 | } |
747 | ||
5424bc55 TRC |
748 | void append_remote_object_url(struct strbuf *buf, const char *url, |
749 | const char *hex, | |
750 | int only_two_digit_prefix) | |
751 | { | |
800324c3 TRC |
752 | end_url_with_slash(buf, url); |
753 | ||
754 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
755 | if (!only_two_digit_prefix) |
756 | strbuf_addf(buf, "%s", hex+2); | |
757 | } | |
758 | ||
759 | char *get_remote_object_url(const char *url, const char *hex, | |
760 | int only_two_digit_prefix) | |
761 | { | |
762 | struct strbuf buf = STRBUF_INIT; | |
763 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
764 | return strbuf_detach(&buf, NULL); | |
765 | } | |
766 | ||
e929cd20 MH |
767 | /* http_request() targets */ |
768 | #define HTTP_REQUEST_STRBUF 0 | |
769 | #define HTTP_REQUEST_FILE 1 | |
770 | ||
771 | static int http_request(const char *url, void *result, int target, int options) | |
772 | { | |
773 | struct active_request_slot *slot; | |
774 | struct slot_results results; | |
775 | struct curl_slist *headers = NULL; | |
776 | struct strbuf buf = STRBUF_INIT; | |
777 | int ret; | |
778 | ||
779 | slot = get_active_slot(); | |
780 | slot->results = &results; | |
781 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
782 | ||
783 | if (result == NULL) { | |
784 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
785 | } else { | |
786 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
787 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
788 | ||
789 | if (target == HTTP_REQUEST_FILE) { | |
790 | long posn = ftell(result); | |
791 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
792 | fwrite); | |
793 | if (posn > 0) { | |
794 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
795 | headers = curl_slist_append(headers, buf.buf); | |
796 | strbuf_reset(&buf); | |
797 | } | |
798 | slot->local = result; | |
799 | } else | |
800 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
801 | fwrite_buffer); | |
802 | } | |
803 | ||
804 | strbuf_addstr(&buf, "Pragma:"); | |
805 | if (options & HTTP_NO_CACHE) | |
806 | strbuf_addstr(&buf, " no-cache"); | |
807 | ||
808 | headers = curl_slist_append(headers, buf.buf); | |
809 | ||
810 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
811 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
812 | ||
813 | if (start_active_slot(slot)) { | |
814 | run_active_slot(slot); | |
815 | if (results.curl_result == CURLE_OK) | |
816 | ret = HTTP_OK; | |
817 | else if (missing_target(&results)) | |
818 | ret = HTTP_MISSING_TARGET; | |
42653c09 SC |
819 | else if (results.http_code == 401) { |
820 | if (user_name) { | |
821 | ret = HTTP_NOAUTH; | |
822 | } else { | |
823 | /* | |
824 | * git_getpass is needed here because its very likely stdin/stdout are | |
825 | * pipes to our parent process. So we instead need to use /dev/tty, | |
826 | * but that is non-portable. Using git_getpass() can at least be stubbed | |
827 | * on other platforms with a different implementation if/when necessary. | |
828 | */ | |
829 | user_name = xstrdup(git_getpass("Username: ")); | |
830 | init_curl_http_auth(slot->curl); | |
831 | ret = HTTP_REAUTH; | |
832 | } | |
833 | } else | |
e929cd20 MH |
834 | ret = HTTP_ERROR; |
835 | } else { | |
836 | error("Unable to start HTTP request for %s", url); | |
837 | ret = HTTP_START_FAILED; | |
838 | } | |
839 | ||
840 | slot->local = NULL; | |
841 | curl_slist_free_all(headers); | |
842 | strbuf_release(&buf); | |
843 | ||
844 | return ret; | |
845 | } | |
846 | ||
847 | int http_get_strbuf(const char *url, struct strbuf *result, int options) | |
848 | { | |
42653c09 SC |
849 | int http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); |
850 | if (http_ret == HTTP_REAUTH) { | |
851 | http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); | |
852 | } | |
853 | return http_ret; | |
e929cd20 MH |
854 | } |
855 | ||
83e41e2e JH |
856 | /* |
857 | * Downloads an url and stores the result in the given file. | |
858 | * | |
859 | * If a previous interrupted download is detected (i.e. a previous temporary | |
860 | * file is still around) the download is resumed. | |
861 | */ | |
862 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
863 | { |
864 | int ret; | |
865 | struct strbuf tmpfile = STRBUF_INIT; | |
866 | FILE *result; | |
867 | ||
868 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
869 | result = fopen(tmpfile.buf, "a"); | |
870 | if (! result) { | |
871 | error("Unable to open local file %s", tmpfile.buf); | |
872 | ret = HTTP_ERROR; | |
873 | goto cleanup; | |
874 | } | |
875 | ||
876 | ret = http_request(url, result, HTTP_REQUEST_FILE, options); | |
877 | fclose(result); | |
878 | ||
879 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
880 | ret = HTTP_ERROR; | |
881 | cleanup: | |
882 | strbuf_release(&tmpfile); | |
883 | return ret; | |
884 | } | |
885 | ||
886 | int http_error(const char *url, int ret) | |
887 | { | |
888 | /* http_request has already handled HTTP_START_FAILED. */ | |
889 | if (ret != HTTP_START_FAILED) | |
890 | error("%s while accessing %s\n", curl_errorstr, url); | |
891 | ||
892 | return ret; | |
893 | } | |
894 | ||
c13b2633 | 895 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
896 | { |
897 | char *url; | |
898 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 899 | int ret = -1; |
d7e92806 | 900 | |
c13b2633 | 901 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
902 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
903 | strbuf_rtrim(&buffer); | |
904 | if (buffer.len == 40) | |
905 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
906 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
907 | ref->symref = xstrdup(buffer.buf + 5); | |
908 | ret = 0; | |
d7e92806 | 909 | } |
d7e92806 MH |
910 | } |
911 | ||
912 | strbuf_release(&buffer); | |
913 | free(url); | |
914 | return ret; | |
915 | } | |
b8caac2b TRC |
916 | |
917 | /* Helpers for fetching packs */ | |
750ef425 | 918 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 919 | { |
750ef425 | 920 | char *url, *tmp; |
b8caac2b | 921 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 922 | |
b8caac2b | 923 | if (http_is_verbose) |
162eb5f8 | 924 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
925 | |
926 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 927 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
928 | url = strbuf_detach(&buf, NULL); |
929 | ||
750ef425 SP |
930 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
931 | tmp = strbuf_detach(&buf, NULL); | |
932 | ||
933 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
934 | error("Unable to get pack index %s\n", url); | |
935 | free(tmp); | |
936 | tmp = NULL; | |
937 | } | |
b8caac2b | 938 | |
b8caac2b | 939 | free(url); |
750ef425 | 940 | return tmp; |
b8caac2b TRC |
941 | } |
942 | ||
943 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
944 | unsigned char *sha1, const char *base_url) | |
945 | { | |
946 | struct packed_git *new_pack; | |
750ef425 SP |
947 | char *tmp_idx = NULL; |
948 | int ret; | |
b8caac2b | 949 | |
750ef425 SP |
950 | if (has_pack_index(sha1)) { |
951 | new_pack = parse_pack_index(sha1, NULL); | |
952 | if (!new_pack) | |
953 | return -1; /* parse_pack_index() already issued error message */ | |
954 | goto add_pack; | |
955 | } | |
956 | ||
957 | tmp_idx = fetch_pack_index(sha1, base_url); | |
958 | if (!tmp_idx) | |
b8caac2b TRC |
959 | return -1; |
960 | ||
750ef425 SP |
961 | new_pack = parse_pack_index(sha1, tmp_idx); |
962 | if (!new_pack) { | |
963 | unlink(tmp_idx); | |
964 | free(tmp_idx); | |
965 | ||
b8caac2b | 966 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
967 | } |
968 | ||
969 | ret = verify_pack_index(new_pack); | |
970 | if (!ret) { | |
971 | close_pack_index(new_pack); | |
972 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
973 | } | |
974 | free(tmp_idx); | |
975 | if (ret) | |
976 | return -1; | |
977 | ||
978 | add_pack: | |
b8caac2b TRC |
979 | new_pack->next = *packs_head; |
980 | *packs_head = new_pack; | |
981 | return 0; | |
982 | } | |
983 | ||
984 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
985 | { | |
986 | int ret = 0, i = 0; | |
987 | char *url, *data; | |
988 | struct strbuf buf = STRBUF_INIT; | |
989 | unsigned char sha1[20]; | |
990 | ||
991 | end_url_with_slash(&buf, base_url); | |
992 | strbuf_addstr(&buf, "objects/info/packs"); | |
993 | url = strbuf_detach(&buf, NULL); | |
994 | ||
995 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
996 | if (ret != HTTP_OK) | |
997 | goto cleanup; | |
998 | ||
999 | data = buf.buf; | |
1000 | while (i < buf.len) { | |
1001 | switch (data[i]) { | |
1002 | case 'P': | |
1003 | i++; | |
1004 | if (i + 52 <= buf.len && | |
1005 | !prefixcmp(data + i, " pack-") && | |
1006 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1007 | get_sha1_hex(data + i + 6, sha1); | |
1008 | fetch_and_setup_pack_index(packs_head, sha1, | |
1009 | base_url); | |
1010 | i += 51; | |
1011 | break; | |
1012 | } | |
1013 | default: | |
1014 | while (i < buf.len && data[i] != '\n') | |
1015 | i++; | |
1016 | } | |
1017 | i++; | |
1018 | } | |
1019 | ||
1020 | cleanup: | |
1021 | free(url); | |
1022 | return ret; | |
1023 | } | |
2264dfa5 TRC |
1024 | |
1025 | void release_http_pack_request(struct http_pack_request *preq) | |
1026 | { | |
1027 | if (preq->packfile != NULL) { | |
1028 | fclose(preq->packfile); | |
1029 | preq->packfile = NULL; | |
1030 | preq->slot->local = NULL; | |
1031 | } | |
1032 | if (preq->range_header != NULL) { | |
1033 | curl_slist_free_all(preq->range_header); | |
1034 | preq->range_header = NULL; | |
1035 | } | |
1036 | preq->slot = NULL; | |
1037 | free(preq->url); | |
1038 | } | |
1039 | ||
1040 | int finish_http_pack_request(struct http_pack_request *preq) | |
1041 | { | |
2264dfa5 | 1042 | struct packed_git **lst; |
021ab6f0 | 1043 | struct packed_git *p = preq->target; |
fe72d420 SP |
1044 | char *tmp_idx; |
1045 | struct child_process ip; | |
1046 | const char *ip_argv[8]; | |
2264dfa5 | 1047 | |
fe72d420 | 1048 | close_pack_index(p); |
2264dfa5 | 1049 | |
3065274c SP |
1050 | fclose(preq->packfile); |
1051 | preq->packfile = NULL; | |
1052 | preq->slot->local = NULL; | |
2264dfa5 TRC |
1053 | |
1054 | lst = preq->lst; | |
021ab6f0 | 1055 | while (*lst != p) |
2264dfa5 TRC |
1056 | lst = &((*lst)->next); |
1057 | *lst = (*lst)->next; | |
1058 | ||
fe72d420 SP |
1059 | tmp_idx = xstrdup(preq->tmpfile); |
1060 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1061 | ".idx.temp"); | |
1062 | ||
1063 | ip_argv[0] = "index-pack"; | |
1064 | ip_argv[1] = "-o"; | |
1065 | ip_argv[2] = tmp_idx; | |
1066 | ip_argv[3] = preq->tmpfile; | |
1067 | ip_argv[4] = NULL; | |
1068 | ||
1069 | memset(&ip, 0, sizeof(ip)); | |
1070 | ip.argv = ip_argv; | |
1071 | ip.git_cmd = 1; | |
1072 | ip.no_stdin = 1; | |
1073 | ip.no_stdout = 1; | |
1074 | ||
1075 | if (run_command(&ip)) { | |
1076 | unlink(preq->tmpfile); | |
1077 | unlink(tmp_idx); | |
1078 | free(tmp_idx); | |
2264dfa5 | 1079 | return -1; |
fe72d420 SP |
1080 | } |
1081 | ||
1082 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1083 | |
fe72d420 SP |
1084 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1085 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1086 | free(tmp_idx); | |
2264dfa5 | 1087 | return -1; |
fe72d420 | 1088 | } |
2264dfa5 | 1089 | |
fe72d420 SP |
1090 | install_packed_git(p); |
1091 | free(tmp_idx); | |
2264dfa5 TRC |
1092 | return 0; |
1093 | } | |
1094 | ||
1095 | struct http_pack_request *new_http_pack_request( | |
1096 | struct packed_git *target, const char *base_url) | |
1097 | { | |
2264dfa5 TRC |
1098 | long prev_posn = 0; |
1099 | char range[RANGE_HEADER_SIZE]; | |
1100 | struct strbuf buf = STRBUF_INIT; | |
1101 | struct http_pack_request *preq; | |
1102 | ||
1103 | preq = xmalloc(sizeof(*preq)); | |
1104 | preq->target = target; | |
1105 | preq->range_header = NULL; | |
1106 | ||
1107 | end_url_with_slash(&buf, base_url); | |
1108 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1109 | sha1_to_hex(target->sha1)); | |
bb99190e | 1110 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1111 | |
90d05713 TRC |
1112 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1113 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1114 | preq->packfile = fopen(preq->tmpfile, "a"); |
1115 | if (!preq->packfile) { | |
1116 | error("Unable to open local file %s for pack", | |
1117 | preq->tmpfile); | |
1118 | goto abort; | |
1119 | } | |
1120 | ||
1121 | preq->slot = get_active_slot(); | |
1122 | preq->slot->local = preq->packfile; | |
1123 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); | |
1124 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1125 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1126 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1127 | no_pragma_header); | |
1128 | ||
1129 | /* | |
1130 | * If there is data present from a previous transfer attempt, | |
1131 | * resume where it left off | |
1132 | */ | |
1133 | prev_posn = ftell(preq->packfile); | |
1134 | if (prev_posn>0) { | |
1135 | if (http_is_verbose) | |
1136 | fprintf(stderr, | |
1137 | "Resuming fetch of pack %s at byte %ld\n", | |
1138 | sha1_to_hex(target->sha1), prev_posn); | |
1139 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1140 | preq->range_header = curl_slist_append(NULL, range); | |
1141 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1142 | preq->range_header); | |
1143 | } | |
1144 | ||
1145 | return preq; | |
1146 | ||
1147 | abort: | |
bb99190e | 1148 | free(preq->url); |
5ae9ebfd | 1149 | free(preq); |
2264dfa5 TRC |
1150 | return NULL; |
1151 | } | |
5424bc55 TRC |
1152 | |
1153 | /* Helpers for fetching objects (loose) */ | |
1154 | static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb, | |
1155 | void *data) | |
1156 | { | |
1157 | unsigned char expn[4096]; | |
1158 | size_t size = eltsize * nmemb; | |
1159 | int posn = 0; | |
1160 | struct http_object_request *freq = | |
1161 | (struct http_object_request *)data; | |
1162 | do { | |
1163 | ssize_t retval = xwrite(freq->localfile, | |
1164 | (char *) ptr + posn, size - posn); | |
1165 | if (retval < 0) | |
1166 | return posn; | |
1167 | posn += retval; | |
1168 | } while (posn < size); | |
1169 | ||
1170 | freq->stream.avail_in = size; | |
1171 | freq->stream.next_in = ptr; | |
1172 | do { | |
1173 | freq->stream.next_out = expn; | |
1174 | freq->stream.avail_out = sizeof(expn); | |
1175 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1176 | git_SHA1_Update(&freq->c, expn, | |
1177 | sizeof(expn) - freq->stream.avail_out); | |
1178 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
1179 | data_received++; | |
1180 | return size; | |
1181 | } | |
1182 | ||
1183 | struct http_object_request *new_http_object_request(const char *base_url, | |
1184 | unsigned char *sha1) | |
1185 | { | |
1186 | char *hex = sha1_to_hex(sha1); | |
1187 | char *filename; | |
1188 | char prevfile[PATH_MAX]; | |
5424bc55 TRC |
1189 | int prevlocal; |
1190 | unsigned char prev_buf[PREV_BUF_SIZE]; | |
1191 | ssize_t prev_read = 0; | |
1192 | long prev_posn = 0; | |
1193 | char range[RANGE_HEADER_SIZE]; | |
1194 | struct curl_slist *range_header = NULL; | |
1195 | struct http_object_request *freq; | |
1196 | ||
1197 | freq = xmalloc(sizeof(*freq)); | |
1198 | hashcpy(freq->sha1, sha1); | |
1199 | freq->localfile = -1; | |
1200 | ||
1201 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1202 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1203 | "%s.temp", filename); | |
1204 | ||
1205 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1206 | unlink_or_warn(prevfile); | |
1207 | rename(freq->tmpfile, prevfile); | |
1208 | unlink_or_warn(freq->tmpfile); | |
1209 | ||
1210 | if (freq->localfile != -1) | |
1211 | error("fd leakage in start: %d", freq->localfile); | |
1212 | freq->localfile = open(freq->tmpfile, | |
1213 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1214 | /* | |
1215 | * This could have failed due to the "lazy directory creation"; | |
1216 | * try to mkdir the last path component. | |
1217 | */ | |
1218 | if (freq->localfile < 0 && errno == ENOENT) { | |
1219 | char *dir = strrchr(freq->tmpfile, '/'); | |
1220 | if (dir) { | |
1221 | *dir = 0; | |
1222 | mkdir(freq->tmpfile, 0777); | |
1223 | *dir = '/'; | |
1224 | } | |
1225 | freq->localfile = open(freq->tmpfile, | |
1226 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1227 | } | |
1228 | ||
1229 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1230 | error("Couldn't create temporary file %s: %s", |
1231 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1232 | goto abort; |
1233 | } | |
1234 | ||
1235 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1236 | ||
1237 | git_inflate_init(&freq->stream); | |
1238 | ||
1239 | git_SHA1_Init(&freq->c); | |
1240 | ||
bb99190e | 1241 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1242 | |
1243 | /* | |
1244 | * If a previous temp file is present, process what was already | |
1245 | * fetched. | |
1246 | */ | |
1247 | prevlocal = open(prevfile, O_RDONLY); | |
1248 | if (prevlocal != -1) { | |
1249 | do { | |
1250 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1251 | if (prev_read>0) { | |
1252 | if (fwrite_sha1_file(prev_buf, | |
1253 | 1, | |
1254 | prev_read, | |
1255 | freq) == prev_read) { | |
1256 | prev_posn += prev_read; | |
1257 | } else { | |
1258 | prev_read = -1; | |
1259 | } | |
1260 | } | |
1261 | } while (prev_read > 0); | |
1262 | close(prevlocal); | |
1263 | } | |
1264 | unlink_or_warn(prevfile); | |
1265 | ||
1266 | /* | |
1267 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1268 | * file; also rewind to the beginning of the local file. | |
1269 | */ | |
1270 | if (prev_read == -1) { | |
1271 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1272 | git_inflate_init(&freq->stream); | |
1273 | git_SHA1_Init(&freq->c); | |
1274 | if (prev_posn>0) { | |
1275 | prev_posn = 0; | |
1276 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1277 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1278 | error("Couldn't truncate temporary file %s: %s", |
1279 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1280 | goto abort; |
1281 | } | |
5424bc55 TRC |
1282 | } |
1283 | } | |
1284 | ||
1285 | freq->slot = get_active_slot(); | |
1286 | ||
1287 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1288 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1289 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1290 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1291 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1292 | ||
1293 | /* | |
1294 | * If we have successfully processed data from a previous fetch | |
1295 | * attempt, only fetch the data we don't already have. | |
1296 | */ | |
1297 | if (prev_posn>0) { | |
1298 | if (http_is_verbose) | |
1299 | fprintf(stderr, | |
1300 | "Resuming fetch of object %s at byte %ld\n", | |
1301 | hex, prev_posn); | |
1302 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1303 | range_header = curl_slist_append(range_header, range); | |
1304 | curl_easy_setopt(freq->slot->curl, | |
1305 | CURLOPT_HTTPHEADER, range_header); | |
1306 | } | |
1307 | ||
1308 | return freq; | |
1309 | ||
5424bc55 TRC |
1310 | abort: |
1311 | free(filename); | |
bb99190e | 1312 | free(freq->url); |
5424bc55 TRC |
1313 | free(freq); |
1314 | return NULL; | |
1315 | } | |
1316 | ||
1317 | void process_http_object_request(struct http_object_request *freq) | |
1318 | { | |
1319 | if (freq->slot == NULL) | |
1320 | return; | |
1321 | freq->curl_result = freq->slot->curl_result; | |
1322 | freq->http_code = freq->slot->http_code; | |
1323 | freq->slot = NULL; | |
1324 | } | |
1325 | ||
1326 | int finish_http_object_request(struct http_object_request *freq) | |
1327 | { | |
1328 | struct stat st; | |
1329 | ||
1330 | close(freq->localfile); | |
1331 | freq->localfile = -1; | |
1332 | ||
1333 | process_http_object_request(freq); | |
1334 | ||
1335 | if (freq->http_code == 416) { | |
bd757c18 | 1336 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1337 | } else if (freq->curl_result != CURLE_OK) { |
1338 | if (stat(freq->tmpfile, &st) == 0) | |
1339 | if (st.st_size == 0) | |
1340 | unlink_or_warn(freq->tmpfile); | |
1341 | return -1; | |
1342 | } | |
1343 | ||
1344 | git_inflate_end(&freq->stream); | |
1345 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1346 | if (freq->zret != Z_STREAM_END) { | |
1347 | unlink_or_warn(freq->tmpfile); | |
1348 | return -1; | |
1349 | } | |
1350 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1351 | unlink_or_warn(freq->tmpfile); | |
1352 | return -1; | |
1353 | } | |
1354 | freq->rename = | |
0da8b2e7 | 1355 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1356 | |
1357 | return freq->rename; | |
1358 | } | |
1359 | ||
1360 | void abort_http_object_request(struct http_object_request *freq) | |
1361 | { | |
1362 | unlink_or_warn(freq->tmpfile); | |
1363 | ||
1364 | release_http_object_request(freq); | |
1365 | } | |
1366 | ||
1367 | void release_http_object_request(struct http_object_request *freq) | |
1368 | { | |
1369 | if (freq->localfile != -1) { | |
1370 | close(freq->localfile); | |
1371 | freq->localfile = -1; | |
1372 | } | |
1373 | if (freq->url != NULL) { | |
1374 | free(freq->url); | |
1375 | freq->url = NULL; | |
1376 | } | |
4b9fa0e3 TRC |
1377 | if (freq->slot != NULL) { |
1378 | freq->slot->callback_func = NULL; | |
1379 | freq->slot->callback_data = NULL; | |
1380 | release_active_slot(freq->slot); | |
1381 | freq->slot = NULL; | |
1382 | } | |
5424bc55 | 1383 | } |