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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" |
29508e1e NH |
6 | |
7 | int data_received; | |
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; |
c33976cb | 45 | static char *user_name, *user_pass; |
b1d1058c | 46 | static const char *user_agent; |
29508e1e | 47 | |
30dd9163 ML |
48 | #if LIBCURL_VERSION_NUM >= 0x071700 |
49 | /* Use CURLOPT_KEYPASSWD as is */ | |
50 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
51 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
52 | #else | |
53 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
54 | #endif | |
55 | ||
56 | static char *ssl_cert_password; | |
57 | static int ssl_cert_password_required; | |
58 | ||
cc3530e8 | 59 | static struct curl_slist *pragma_header; |
5424bc55 | 60 | static struct curl_slist *no_pragma_header; |
e9176745 | 61 | |
4251ccbd | 62 | static struct active_request_slot *active_queue_head; |
29508e1e | 63 | |
a04ff3ec | 64 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
65 | { |
66 | size_t size = eltsize * nmemb; | |
f444e528 JH |
67 | struct buffer *buffer = buffer_; |
68 | ||
028c2976 MH |
69 | if (size > buffer->buf.len - buffer->posn) |
70 | size = buffer->buf.len - buffer->posn; | |
71 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 72 | buffer->posn += size; |
028c2976 | 73 | |
29508e1e NH |
74 | return size; |
75 | } | |
76 | ||
3944ba0c MS |
77 | #ifndef NO_CURL_IOCTL |
78 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
79 | { | |
80 | struct buffer *buffer = clientp; | |
81 | ||
82 | switch (cmd) { | |
83 | case CURLIOCMD_NOP: | |
84 | return CURLIOE_OK; | |
85 | ||
86 | case CURLIOCMD_RESTARTREAD: | |
87 | buffer->posn = 0; | |
88 | return CURLIOE_OK; | |
89 | ||
90 | default: | |
91 | return CURLIOE_UNKNOWNCMD; | |
92 | } | |
93 | } | |
94 | #endif | |
95 | ||
a04ff3ec | 96 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
97 | { |
98 | size_t size = eltsize * nmemb; | |
f444e528 JH |
99 | struct strbuf *buffer = buffer_; |
100 | ||
028c2976 | 101 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
102 | data_received++; |
103 | return size; | |
104 | } | |
105 | ||
a04ff3ec | 106 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e NH |
107 | { |
108 | data_received++; | |
109 | return eltsize * nmemb; | |
110 | } | |
111 | ||
29508e1e NH |
112 | #ifdef USE_CURL_MULTI |
113 | static void process_curl_messages(void) | |
114 | { | |
115 | int num_messages; | |
116 | struct active_request_slot *slot; | |
117 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
118 | ||
119 | while (curl_message != NULL) { | |
120 | if (curl_message->msg == CURLMSG_DONE) { | |
121 | int curl_result = curl_message->data.result; | |
122 | slot = active_queue_head; | |
123 | while (slot != NULL && | |
124 | slot->curl != curl_message->easy_handle) | |
125 | slot = slot->next; | |
126 | if (slot != NULL) { | |
127 | curl_multi_remove_handle(curlm, slot->curl); | |
128 | slot->curl_result = curl_result; | |
129 | finish_active_slot(slot); | |
130 | } else { | |
131 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
132 | } | |
133 | } else { | |
134 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
135 | (int)curl_message->msg); | |
136 | } | |
137 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
138 | } | |
139 | } | |
140 | #endif | |
141 | ||
ef90d6d4 | 142 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
143 | { |
144 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 145 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
146 | return 0; |
147 | } | |
7059cd99 JH |
148 | if (!strcmp("http.sslcert", var)) |
149 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 150 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
151 | if (!strcmp("http.sslkey", var)) |
152 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
153 | #endif |
154 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
155 | if (!strcmp("http.sslcapath", var)) |
156 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 157 | #endif |
7059cd99 JH |
158 | if (!strcmp("http.sslcainfo", var)) |
159 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 ML |
160 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
161 | if (git_config_bool(var, value)) | |
162 | ssl_cert_password_required = 1; | |
163 | return 0; | |
164 | } | |
ad75ebe5 TRC |
165 | if (!strcmp("http.minsessions", var)) { |
166 | min_curl_sessions = git_config_int(var, value); | |
167 | #ifndef USE_CURL_MULTI | |
168 | if (min_curl_sessions > 1) | |
169 | min_curl_sessions = 1; | |
170 | #endif | |
171 | return 0; | |
172 | } | |
a6080a0a | 173 | #ifdef USE_CURL_MULTI |
29508e1e | 174 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 175 | max_requests = git_config_int(var, value); |
29508e1e NH |
176 | return 0; |
177 | } | |
178 | #endif | |
29508e1e | 179 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 180 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
181 | return 0; |
182 | } | |
183 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 184 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
185 | return 0; |
186 | } | |
187 | ||
3ea099d4 SK |
188 | if (!strcmp("http.noepsv", var)) { |
189 | curl_ftp_no_epsv = git_config_bool(var, value); | |
190 | return 0; | |
191 | } | |
7059cd99 JH |
192 | if (!strcmp("http.proxy", var)) |
193 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 194 | |
bcfb95dd DB |
195 | if (!strcmp("http.cookiefile", var)) |
196 | return git_config_string(&curl_cookie_file, var, value); | |
197 | ||
de1a2fdd SP |
198 | if (!strcmp("http.postbuffer", var)) { |
199 | http_post_buffer = git_config_int(var, value); | |
200 | if (http_post_buffer < LARGE_PACKET_MAX) | |
201 | http_post_buffer = LARGE_PACKET_MAX; | |
202 | return 0; | |
203 | } | |
204 | ||
b1d1058c SO |
205 | if (!strcmp("http.useragent", var)) |
206 | return git_config_string(&user_agent, var, value); | |
207 | ||
29508e1e | 208 | /* Fall back on the default ones */ |
ef90d6d4 | 209 | return git_default_config(var, value, cb); |
29508e1e NH |
210 | } |
211 | ||
c33976cb JH |
212 | static void init_curl_http_auth(CURL *result) |
213 | { | |
750d9305 | 214 | if (user_name) { |
c33976cb JH |
215 | struct strbuf up = STRBUF_INIT; |
216 | if (!user_pass) | |
f206063b | 217 | user_pass = xstrdup(git_getpass("Password: ")); |
c33976cb JH |
218 | strbuf_addf(&up, "%s:%s", user_name, user_pass); |
219 | curl_easy_setopt(result, CURLOPT_USERPWD, | |
220 | strbuf_detach(&up, NULL)); | |
221 | } | |
222 | } | |
223 | ||
30dd9163 ML |
224 | static int has_cert_password(void) |
225 | { | |
226 | if (ssl_cert_password != NULL) | |
227 | return 1; | |
228 | if (ssl_cert == NULL || ssl_cert_password_required != 1) | |
229 | return 0; | |
230 | /* Only prompt the user once. */ | |
231 | ssl_cert_password_required = -1; | |
f206063b | 232 | ssl_cert_password = git_getpass("Certificate Password: "); |
30dd9163 ML |
233 | if (ssl_cert_password != NULL) { |
234 | ssl_cert_password = xstrdup(ssl_cert_password); | |
235 | return 1; | |
236 | } else | |
237 | return 0; | |
238 | } | |
239 | ||
4251ccbd | 240 | static CURL *get_curl_handle(void) |
11979b98 | 241 | { |
4251ccbd | 242 | CURL *result = curl_easy_init(); |
11979b98 | 243 | |
a5ccc597 JH |
244 | if (!curl_ssl_verify) { |
245 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
246 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
247 | } else { | |
248 | /* Verify authenticity of the peer's certificate */ | |
249 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
250 | /* The name in the cert must match whom we tried to connect */ | |
251 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
252 | } | |
253 | ||
11979b98 JH |
254 | #if LIBCURL_VERSION_NUM >= 0x070907 |
255 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
256 | #endif | |
b8ac9230 | 257 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 258 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 259 | #endif |
11979b98 | 260 | |
c33976cb JH |
261 | init_curl_http_auth(result); |
262 | ||
11979b98 JH |
263 | if (ssl_cert != NULL) |
264 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 ML |
265 | if (has_cert_password()) |
266 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, ssl_cert_password); | |
ef52aafa | 267 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
268 | if (ssl_key != NULL) |
269 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
270 | #endif | |
271 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
272 | if (ssl_capath != NULL) | |
273 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
274 | #endif | |
275 | if (ssl_cainfo != NULL) | |
276 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
277 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
278 | ||
279 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
280 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
281 | curl_low_speed_limit); | |
282 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
283 | curl_low_speed_time); | |
284 | } | |
285 | ||
286 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
287 | #if LIBCURL_VERSION_NUM >= 0x071301 |
288 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
289 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
290 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
291 | #endif | |
11979b98 | 292 | |
7982d74e MW |
293 | if (getenv("GIT_CURL_VERBOSE")) |
294 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
295 | ||
b1d1058c SO |
296 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
297 | user_agent ? user_agent : GIT_HTTP_USER_AGENT); | |
20fc9bc5 | 298 | |
3ea099d4 SK |
299 | if (curl_ftp_no_epsv) |
300 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
301 | ||
9c5665aa SV |
302 | if (curl_http_proxy) |
303 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); | |
304 | ||
11979b98 JH |
305 | return result; |
306 | } | |
307 | ||
c33976cb JH |
308 | static void http_auth_init(const char *url) |
309 | { | |
f39f72d8 | 310 | char *at, *colon, *cp, *slash, *decoded; |
c33976cb JH |
311 | int len; |
312 | ||
313 | cp = strstr(url, "://"); | |
314 | if (!cp) | |
315 | return; | |
316 | ||
317 | /* | |
318 | * Ok, the URL looks like "proto://something". Which one? | |
319 | * "proto://<user>:<pass>@<host>/...", | |
320 | * "proto://<user>@<host>/...", or just | |
321 | * "proto://<host>/..."? | |
322 | */ | |
323 | cp += 3; | |
324 | at = strchr(cp, '@'); | |
325 | colon = strchr(cp, ':'); | |
326 | slash = strchrnul(cp, '/'); | |
327 | if (!at || slash <= at) | |
328 | return; /* No credentials */ | |
329 | if (!colon || at <= colon) { | |
330 | /* Only username */ | |
331 | len = at - cp; | |
332 | user_name = xmalloc(len + 1); | |
333 | memcpy(user_name, cp, len); | |
334 | user_name[len] = '\0'; | |
f39f72d8 GC |
335 | decoded = url_decode(user_name); |
336 | free(user_name); | |
337 | user_name = decoded; | |
c33976cb JH |
338 | user_pass = NULL; |
339 | } else { | |
340 | len = colon - cp; | |
341 | user_name = xmalloc(len + 1); | |
342 | memcpy(user_name, cp, len); | |
343 | user_name[len] = '\0'; | |
f39f72d8 GC |
344 | decoded = url_decode(user_name); |
345 | free(user_name); | |
346 | user_name = decoded; | |
c33976cb JH |
347 | len = at - (colon + 1); |
348 | user_pass = xmalloc(len + 1); | |
349 | memcpy(user_pass, colon + 1, len); | |
350 | user_pass[len] = '\0'; | |
f39f72d8 GC |
351 | decoded = url_decode(user_pass); |
352 | free(user_pass); | |
353 | user_pass = decoded; | |
c33976cb JH |
354 | } |
355 | } | |
356 | ||
7059cd99 JH |
357 | static void set_from_env(const char **var, const char *envname) |
358 | { | |
359 | const char *val = getenv(envname); | |
360 | if (val) | |
361 | *var = val; | |
362 | } | |
363 | ||
9fc6440d | 364 | void http_init(struct remote *remote) |
29508e1e NH |
365 | { |
366 | char *low_speed_limit; | |
367 | char *low_speed_time; | |
368 | ||
e9176745 TRC |
369 | http_is_verbose = 0; |
370 | ||
7059cd99 JH |
371 | git_config(http_options, NULL); |
372 | ||
29508e1e NH |
373 | curl_global_init(CURL_GLOBAL_ALL); |
374 | ||
9fc6440d MH |
375 | if (remote && remote->http_proxy) |
376 | curl_http_proxy = xstrdup(remote->http_proxy); | |
377 | ||
29508e1e | 378 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 379 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
380 | |
381 | #ifdef USE_CURL_MULTI | |
382 | { | |
383 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
384 | if (http_max_requests != NULL) | |
385 | max_requests = atoi(http_max_requests); | |
386 | } | |
387 | ||
388 | curlm = curl_multi_init(); | |
389 | if (curlm == NULL) { | |
390 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
391 | exit(1); | |
392 | } | |
393 | #endif | |
394 | ||
395 | if (getenv("GIT_SSL_NO_VERIFY")) | |
396 | curl_ssl_verify = 0; | |
397 | ||
7059cd99 | 398 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 399 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 400 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
401 | #endif |
402 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 403 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 404 | #endif |
7059cd99 | 405 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 406 | |
b1d1058c SO |
407 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
408 | ||
29508e1e NH |
409 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
410 | if (low_speed_limit != NULL) | |
411 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
412 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
413 | if (low_speed_time != NULL) | |
414 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
415 | ||
29508e1e NH |
416 | if (curl_ssl_verify == -1) |
417 | curl_ssl_verify = 1; | |
418 | ||
ad75ebe5 | 419 | curl_session_count = 0; |
29508e1e NH |
420 | #ifdef USE_CURL_MULTI |
421 | if (max_requests < 1) | |
422 | max_requests = DEFAULT_MAX_REQUESTS; | |
423 | #endif | |
424 | ||
3ea099d4 SK |
425 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
426 | curl_ftp_no_epsv = 1; | |
427 | ||
30dd9163 | 428 | if (remote && remote->url && remote->url[0]) { |
c33976cb | 429 | http_auth_init(remote->url[0]); |
754ae192 ML |
430 | if (!ssl_cert_password_required && |
431 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
432 | !prefixcmp(remote->url[0], "https://")) | |
30dd9163 ML |
433 | ssl_cert_password_required = 1; |
434 | } | |
c33976cb | 435 | |
29508e1e NH |
436 | #ifndef NO_CURL_EASY_DUPHANDLE |
437 | curl_default = get_curl_handle(); | |
438 | #endif | |
439 | } | |
440 | ||
441 | void http_cleanup(void) | |
442 | { | |
443 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
444 | |
445 | while (slot != NULL) { | |
3278cd0a | 446 | struct active_request_slot *next = slot->next; |
f23d1f76 | 447 | if (slot->curl != NULL) { |
29508e1e | 448 | #ifdef USE_CURL_MULTI |
f23d1f76 | 449 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 450 | #endif |
29508e1e | 451 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 452 | } |
3278cd0a SP |
453 | free(slot); |
454 | slot = next; | |
29508e1e | 455 | } |
3278cd0a | 456 | active_queue_head = NULL; |
29508e1e NH |
457 | |
458 | #ifndef NO_CURL_EASY_DUPHANDLE | |
459 | curl_easy_cleanup(curl_default); | |
460 | #endif | |
461 | ||
462 | #ifdef USE_CURL_MULTI | |
463 | curl_multi_cleanup(curlm); | |
464 | #endif | |
465 | curl_global_cleanup(); | |
b3ca4e4e NH |
466 | |
467 | curl_slist_free_all(pragma_header); | |
3278cd0a | 468 | pragma_header = NULL; |
9fc6440d | 469 | |
e9176745 TRC |
470 | curl_slist_free_all(no_pragma_header); |
471 | no_pragma_header = NULL; | |
472 | ||
9fc6440d | 473 | if (curl_http_proxy) { |
e4a80ecf | 474 | free((void *)curl_http_proxy); |
9fc6440d MH |
475 | curl_http_proxy = NULL; |
476 | } | |
30dd9163 ML |
477 | |
478 | if (ssl_cert_password != NULL) { | |
479 | memset(ssl_cert_password, 0, strlen(ssl_cert_password)); | |
480 | free(ssl_cert_password); | |
481 | ssl_cert_password = NULL; | |
482 | } | |
483 | ssl_cert_password_required = 0; | |
29508e1e NH |
484 | } |
485 | ||
29508e1e NH |
486 | struct active_request_slot *get_active_slot(void) |
487 | { | |
488 | struct active_request_slot *slot = active_queue_head; | |
489 | struct active_request_slot *newslot; | |
490 | ||
491 | #ifdef USE_CURL_MULTI | |
492 | int num_transfers; | |
493 | ||
494 | /* Wait for a slot to open up if the queue is full */ | |
495 | while (active_requests >= max_requests) { | |
496 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 497 | if (num_transfers < active_requests) |
29508e1e | 498 | process_curl_messages(); |
29508e1e NH |
499 | } |
500 | #endif | |
501 | ||
4251ccbd | 502 | while (slot != NULL && slot->in_use) |
29508e1e | 503 | slot = slot->next; |
4251ccbd | 504 | |
29508e1e NH |
505 | if (slot == NULL) { |
506 | newslot = xmalloc(sizeof(*newslot)); | |
507 | newslot->curl = NULL; | |
508 | newslot->in_use = 0; | |
509 | newslot->next = NULL; | |
510 | ||
511 | slot = active_queue_head; | |
512 | if (slot == NULL) { | |
513 | active_queue_head = newslot; | |
514 | } else { | |
4251ccbd | 515 | while (slot->next != NULL) |
29508e1e | 516 | slot = slot->next; |
29508e1e NH |
517 | slot->next = newslot; |
518 | } | |
519 | slot = newslot; | |
520 | } | |
521 | ||
522 | if (slot->curl == NULL) { | |
523 | #ifdef NO_CURL_EASY_DUPHANDLE | |
524 | slot->curl = get_curl_handle(); | |
525 | #else | |
526 | slot->curl = curl_easy_duphandle(curl_default); | |
527 | #endif | |
ad75ebe5 | 528 | curl_session_count++; |
29508e1e NH |
529 | } |
530 | ||
531 | active_requests++; | |
532 | slot->in_use = 1; | |
533 | slot->local = NULL; | |
c8568e13 | 534 | slot->results = NULL; |
baa7b67d | 535 | slot->finished = NULL; |
29508e1e NH |
536 | slot->callback_data = NULL; |
537 | slot->callback_func = NULL; | |
bcfb95dd | 538 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
29508e1e | 539 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 540 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
541 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
542 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
543 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 544 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
545 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
546 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
29508e1e NH |
547 | |
548 | return slot; | |
549 | } | |
550 | ||
551 | int start_active_slot(struct active_request_slot *slot) | |
552 | { | |
553 | #ifdef USE_CURL_MULTI | |
554 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 555 | int num_transfers; |
29508e1e NH |
556 | |
557 | if (curlm_result != CURLM_OK && | |
558 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
559 | active_requests--; | |
560 | slot->in_use = 0; | |
561 | return 0; | |
562 | } | |
45c17412 DB |
563 | |
564 | /* | |
565 | * We know there must be something to do, since we just added | |
566 | * something. | |
567 | */ | |
568 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
569 | #endif |
570 | return 1; | |
571 | } | |
572 | ||
573 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
574 | struct fill_chain { |
575 | void *data; | |
576 | int (*fill)(void *); | |
577 | struct fill_chain *next; | |
578 | }; | |
579 | ||
4251ccbd | 580 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
581 | |
582 | void add_fill_function(void *data, int (*fill)(void *)) | |
583 | { | |
e8eec71d | 584 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
585 | struct fill_chain **linkp = &fill_cfg; |
586 | new->data = data; | |
587 | new->fill = fill; | |
588 | new->next = NULL; | |
589 | while (*linkp) | |
590 | linkp = &(*linkp)->next; | |
591 | *linkp = new; | |
592 | } | |
593 | ||
45c17412 DB |
594 | void fill_active_slots(void) |
595 | { | |
596 | struct active_request_slot *slot = active_queue_head; | |
597 | ||
fc57b6aa DB |
598 | while (active_requests < max_requests) { |
599 | struct fill_chain *fill; | |
600 | for (fill = fill_cfg; fill; fill = fill->next) | |
601 | if (fill->fill(fill->data)) | |
602 | break; | |
603 | ||
604 | if (!fill) | |
45c17412 | 605 | break; |
fc57b6aa | 606 | } |
45c17412 DB |
607 | |
608 | while (slot != NULL) { | |
ad75ebe5 TRC |
609 | if (!slot->in_use && slot->curl != NULL |
610 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
611 | curl_easy_cleanup(slot->curl); |
612 | slot->curl = NULL; | |
ad75ebe5 | 613 | curl_session_count--; |
45c17412 DB |
614 | } |
615 | slot = slot->next; | |
616 | } | |
617 | } | |
618 | ||
29508e1e NH |
619 | void step_active_slots(void) |
620 | { | |
621 | int num_transfers; | |
622 | CURLMcode curlm_result; | |
623 | ||
624 | do { | |
625 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
626 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
627 | if (num_transfers < active_requests) { | |
628 | process_curl_messages(); | |
629 | fill_active_slots(); | |
630 | } | |
631 | } | |
632 | #endif | |
633 | ||
634 | void run_active_slot(struct active_request_slot *slot) | |
635 | { | |
636 | #ifdef USE_CURL_MULTI | |
637 | long last_pos = 0; | |
638 | long current_pos; | |
639 | fd_set readfds; | |
640 | fd_set writefds; | |
641 | fd_set excfds; | |
642 | int max_fd; | |
643 | struct timeval select_timeout; | |
baa7b67d | 644 | int finished = 0; |
29508e1e | 645 | |
baa7b67d NH |
646 | slot->finished = &finished; |
647 | while (!finished) { | |
29508e1e NH |
648 | data_received = 0; |
649 | step_active_slots(); | |
650 | ||
651 | if (!data_received && slot->local != NULL) { | |
652 | current_pos = ftell(slot->local); | |
653 | if (current_pos > last_pos) | |
654 | data_received++; | |
655 | last_pos = current_pos; | |
656 | } | |
657 | ||
658 | if (slot->in_use && !data_received) { | |
659 | max_fd = 0; | |
660 | FD_ZERO(&readfds); | |
661 | FD_ZERO(&writefds); | |
662 | FD_ZERO(&excfds); | |
663 | select_timeout.tv_sec = 0; | |
664 | select_timeout.tv_usec = 50000; | |
665 | select(max_fd, &readfds, &writefds, | |
666 | &excfds, &select_timeout); | |
667 | } | |
668 | } | |
669 | #else | |
670 | while (slot->in_use) { | |
671 | slot->curl_result = curl_easy_perform(slot->curl); | |
672 | finish_active_slot(slot); | |
673 | } | |
674 | #endif | |
675 | } | |
676 | ||
53f31389 | 677 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 678 | { |
028c2976 MH |
679 | active_requests--; |
680 | slot->in_use = 0; | |
53f31389 MW |
681 | } |
682 | ||
83e41e2e | 683 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
684 | { |
685 | closedown_active_slot(slot); | |
ad75ebe5 | 686 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 687 | #ifdef USE_CURL_MULTI |
53f31389 | 688 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 689 | #endif |
53f31389 MW |
690 | curl_easy_cleanup(slot->curl); |
691 | slot->curl = NULL; | |
ad75ebe5 | 692 | curl_session_count--; |
53f31389 | 693 | } |
b3ca4e4e | 694 | #ifdef USE_CURL_MULTI |
53f31389 | 695 | fill_active_slots(); |
b3ca4e4e | 696 | #endif |
53f31389 MW |
697 | } |
698 | ||
de1a2fdd | 699 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
700 | { |
701 | closedown_active_slot(slot); | |
028c2976 | 702 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 703 | |
baa7b67d NH |
704 | if (slot->finished != NULL) |
705 | (*slot->finished) = 1; | |
706 | ||
c8568e13 NH |
707 | /* Store slot results so they can be read after the slot is reused */ |
708 | if (slot->results != NULL) { | |
709 | slot->results->curl_result = slot->curl_result; | |
710 | slot->results->http_code = slot->http_code; | |
711 | } | |
712 | ||
028c2976 | 713 | /* Run callback if appropriate */ |
4251ccbd | 714 | if (slot->callback_func != NULL) |
028c2976 | 715 | slot->callback_func(slot->callback_data); |
29508e1e NH |
716 | } |
717 | ||
718 | void finish_all_active_slots(void) | |
719 | { | |
720 | struct active_request_slot *slot = active_queue_head; | |
721 | ||
722 | while (slot != NULL) | |
723 | if (slot->in_use) { | |
724 | run_active_slot(slot); | |
725 | slot = active_queue_head; | |
726 | } else { | |
727 | slot = slot->next; | |
728 | } | |
729 | } | |
d7e92806 | 730 | |
5ace994f | 731 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
732 | static inline int needs_quote(int ch) |
733 | { | |
734 | if (((ch >= 'A') && (ch <= 'Z')) | |
735 | || ((ch >= 'a') && (ch <= 'z')) | |
736 | || ((ch >= '0') && (ch <= '9')) | |
737 | || (ch == '/') | |
738 | || (ch == '-') | |
739 | || (ch == '.')) | |
740 | return 0; | |
741 | return 1; | |
742 | } | |
743 | ||
744 | static inline int hex(int v) | |
745 | { | |
4251ccbd JH |
746 | if (v < 10) |
747 | return '0' + v; | |
748 | else | |
749 | return 'A' + v - 10; | |
d7e92806 MH |
750 | } |
751 | ||
752 | static char *quote_ref_url(const char *base, const char *ref) | |
753 | { | |
113106e0 | 754 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 755 | const char *cp; |
113106e0 | 756 | int ch; |
d7e92806 | 757 | |
5ace994f | 758 | end_url_with_slash(&buf, base); |
113106e0 TRC |
759 | |
760 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 761 | if (needs_quote(ch)) |
113106e0 | 762 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 763 | else |
113106e0 | 764 | strbuf_addch(&buf, *cp); |
d7e92806 | 765 | |
113106e0 | 766 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
767 | } |
768 | ||
5424bc55 TRC |
769 | void append_remote_object_url(struct strbuf *buf, const char *url, |
770 | const char *hex, | |
771 | int only_two_digit_prefix) | |
772 | { | |
800324c3 TRC |
773 | end_url_with_slash(buf, url); |
774 | ||
775 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
776 | if (!only_two_digit_prefix) |
777 | strbuf_addf(buf, "%s", hex+2); | |
778 | } | |
779 | ||
780 | char *get_remote_object_url(const char *url, const char *hex, | |
781 | int only_two_digit_prefix) | |
782 | { | |
783 | struct strbuf buf = STRBUF_INIT; | |
784 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
785 | return strbuf_detach(&buf, NULL); | |
786 | } | |
787 | ||
e929cd20 MH |
788 | /* http_request() targets */ |
789 | #define HTTP_REQUEST_STRBUF 0 | |
790 | #define HTTP_REQUEST_FILE 1 | |
791 | ||
792 | static int http_request(const char *url, void *result, int target, int options) | |
793 | { | |
794 | struct active_request_slot *slot; | |
795 | struct slot_results results; | |
796 | struct curl_slist *headers = NULL; | |
797 | struct strbuf buf = STRBUF_INIT; | |
798 | int ret; | |
799 | ||
800 | slot = get_active_slot(); | |
801 | slot->results = &results; | |
802 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
803 | ||
804 | if (result == NULL) { | |
805 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
806 | } else { | |
807 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
808 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
809 | ||
810 | if (target == HTTP_REQUEST_FILE) { | |
811 | long posn = ftell(result); | |
812 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
813 | fwrite); | |
814 | if (posn > 0) { | |
815 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
816 | headers = curl_slist_append(headers, buf.buf); | |
817 | strbuf_reset(&buf); | |
818 | } | |
819 | slot->local = result; | |
820 | } else | |
821 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
822 | fwrite_buffer); | |
823 | } | |
824 | ||
825 | strbuf_addstr(&buf, "Pragma:"); | |
826 | if (options & HTTP_NO_CACHE) | |
827 | strbuf_addstr(&buf, " no-cache"); | |
828 | ||
829 | headers = curl_slist_append(headers, buf.buf); | |
830 | ||
831 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
832 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
833 | ||
834 | if (start_active_slot(slot)) { | |
835 | run_active_slot(slot); | |
836 | if (results.curl_result == CURLE_OK) | |
837 | ret = HTTP_OK; | |
838 | else if (missing_target(&results)) | |
839 | ret = HTTP_MISSING_TARGET; | |
42653c09 SC |
840 | else if (results.http_code == 401) { |
841 | if (user_name) { | |
842 | ret = HTTP_NOAUTH; | |
843 | } else { | |
844 | /* | |
845 | * git_getpass is needed here because its very likely stdin/stdout are | |
846 | * pipes to our parent process. So we instead need to use /dev/tty, | |
847 | * but that is non-portable. Using git_getpass() can at least be stubbed | |
848 | * on other platforms with a different implementation if/when necessary. | |
849 | */ | |
850 | user_name = xstrdup(git_getpass("Username: ")); | |
851 | init_curl_http_auth(slot->curl); | |
852 | ret = HTTP_REAUTH; | |
853 | } | |
be22d92e JN |
854 | } else { |
855 | if (!curl_errorstr[0]) | |
856 | strlcpy(curl_errorstr, | |
857 | curl_easy_strerror(results.curl_result), | |
858 | sizeof(curl_errorstr)); | |
e929cd20 | 859 | ret = HTTP_ERROR; |
be22d92e | 860 | } |
e929cd20 MH |
861 | } else { |
862 | error("Unable to start HTTP request for %s", url); | |
863 | ret = HTTP_START_FAILED; | |
864 | } | |
865 | ||
866 | slot->local = NULL; | |
867 | curl_slist_free_all(headers); | |
868 | strbuf_release(&buf); | |
869 | ||
870 | return ret; | |
871 | } | |
872 | ||
873 | int http_get_strbuf(const char *url, struct strbuf *result, int options) | |
874 | { | |
42653c09 SC |
875 | int http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); |
876 | if (http_ret == HTTP_REAUTH) { | |
877 | http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); | |
878 | } | |
879 | return http_ret; | |
e929cd20 MH |
880 | } |
881 | ||
83e41e2e JH |
882 | /* |
883 | * Downloads an url and stores the result in the given file. | |
884 | * | |
885 | * If a previous interrupted download is detected (i.e. a previous temporary | |
886 | * file is still around) the download is resumed. | |
887 | */ | |
888 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
889 | { |
890 | int ret; | |
891 | struct strbuf tmpfile = STRBUF_INIT; | |
892 | FILE *result; | |
893 | ||
894 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
895 | result = fopen(tmpfile.buf, "a"); | |
896 | if (! result) { | |
897 | error("Unable to open local file %s", tmpfile.buf); | |
898 | ret = HTTP_ERROR; | |
899 | goto cleanup; | |
900 | } | |
901 | ||
902 | ret = http_request(url, result, HTTP_REQUEST_FILE, options); | |
903 | fclose(result); | |
904 | ||
905 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
906 | ret = HTTP_ERROR; | |
907 | cleanup: | |
908 | strbuf_release(&tmpfile); | |
909 | return ret; | |
910 | } | |
911 | ||
912 | int http_error(const char *url, int ret) | |
913 | { | |
914 | /* http_request has already handled HTTP_START_FAILED. */ | |
915 | if (ret != HTTP_START_FAILED) | |
8abc5082 | 916 | error("%s while accessing %s", curl_errorstr, url); |
e929cd20 MH |
917 | |
918 | return ret; | |
919 | } | |
920 | ||
c13b2633 | 921 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
922 | { |
923 | char *url; | |
924 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 925 | int ret = -1; |
d7e92806 | 926 | |
c13b2633 | 927 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
928 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
929 | strbuf_rtrim(&buffer); | |
930 | if (buffer.len == 40) | |
931 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
932 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
933 | ref->symref = xstrdup(buffer.buf + 5); | |
934 | ret = 0; | |
d7e92806 | 935 | } |
d7e92806 MH |
936 | } |
937 | ||
938 | strbuf_release(&buffer); | |
939 | free(url); | |
940 | return ret; | |
941 | } | |
b8caac2b TRC |
942 | |
943 | /* Helpers for fetching packs */ | |
750ef425 | 944 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 945 | { |
750ef425 | 946 | char *url, *tmp; |
b8caac2b | 947 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 948 | |
b8caac2b | 949 | if (http_is_verbose) |
162eb5f8 | 950 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
951 | |
952 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 953 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
954 | url = strbuf_detach(&buf, NULL); |
955 | ||
750ef425 SP |
956 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
957 | tmp = strbuf_detach(&buf, NULL); | |
958 | ||
959 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
960 | error("Unable to get pack index %s\n", url); | |
961 | free(tmp); | |
962 | tmp = NULL; | |
963 | } | |
b8caac2b | 964 | |
b8caac2b | 965 | free(url); |
750ef425 | 966 | return tmp; |
b8caac2b TRC |
967 | } |
968 | ||
969 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
970 | unsigned char *sha1, const char *base_url) | |
971 | { | |
972 | struct packed_git *new_pack; | |
750ef425 SP |
973 | char *tmp_idx = NULL; |
974 | int ret; | |
b8caac2b | 975 | |
750ef425 SP |
976 | if (has_pack_index(sha1)) { |
977 | new_pack = parse_pack_index(sha1, NULL); | |
978 | if (!new_pack) | |
979 | return -1; /* parse_pack_index() already issued error message */ | |
980 | goto add_pack; | |
981 | } | |
982 | ||
983 | tmp_idx = fetch_pack_index(sha1, base_url); | |
984 | if (!tmp_idx) | |
b8caac2b TRC |
985 | return -1; |
986 | ||
750ef425 SP |
987 | new_pack = parse_pack_index(sha1, tmp_idx); |
988 | if (!new_pack) { | |
989 | unlink(tmp_idx); | |
990 | free(tmp_idx); | |
991 | ||
b8caac2b | 992 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
993 | } |
994 | ||
995 | ret = verify_pack_index(new_pack); | |
996 | if (!ret) { | |
997 | close_pack_index(new_pack); | |
998 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
999 | } | |
1000 | free(tmp_idx); | |
1001 | if (ret) | |
1002 | return -1; | |
1003 | ||
1004 | add_pack: | |
b8caac2b TRC |
1005 | new_pack->next = *packs_head; |
1006 | *packs_head = new_pack; | |
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1011 | { | |
1012 | int ret = 0, i = 0; | |
1013 | char *url, *data; | |
1014 | struct strbuf buf = STRBUF_INIT; | |
1015 | unsigned char sha1[20]; | |
1016 | ||
1017 | end_url_with_slash(&buf, base_url); | |
1018 | strbuf_addstr(&buf, "objects/info/packs"); | |
1019 | url = strbuf_detach(&buf, NULL); | |
1020 | ||
1021 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
1022 | if (ret != HTTP_OK) | |
1023 | goto cleanup; | |
1024 | ||
1025 | data = buf.buf; | |
1026 | while (i < buf.len) { | |
1027 | switch (data[i]) { | |
1028 | case 'P': | |
1029 | i++; | |
1030 | if (i + 52 <= buf.len && | |
1031 | !prefixcmp(data + i, " pack-") && | |
1032 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1033 | get_sha1_hex(data + i + 6, sha1); | |
1034 | fetch_and_setup_pack_index(packs_head, sha1, | |
1035 | base_url); | |
1036 | i += 51; | |
1037 | break; | |
1038 | } | |
1039 | default: | |
1040 | while (i < buf.len && data[i] != '\n') | |
1041 | i++; | |
1042 | } | |
1043 | i++; | |
1044 | } | |
1045 | ||
1046 | cleanup: | |
1047 | free(url); | |
1048 | return ret; | |
1049 | } | |
2264dfa5 TRC |
1050 | |
1051 | void release_http_pack_request(struct http_pack_request *preq) | |
1052 | { | |
1053 | if (preq->packfile != NULL) { | |
1054 | fclose(preq->packfile); | |
1055 | preq->packfile = NULL; | |
1056 | preq->slot->local = NULL; | |
1057 | } | |
1058 | if (preq->range_header != NULL) { | |
1059 | curl_slist_free_all(preq->range_header); | |
1060 | preq->range_header = NULL; | |
1061 | } | |
1062 | preq->slot = NULL; | |
1063 | free(preq->url); | |
1064 | } | |
1065 | ||
1066 | int finish_http_pack_request(struct http_pack_request *preq) | |
1067 | { | |
2264dfa5 | 1068 | struct packed_git **lst; |
021ab6f0 | 1069 | struct packed_git *p = preq->target; |
fe72d420 SP |
1070 | char *tmp_idx; |
1071 | struct child_process ip; | |
1072 | const char *ip_argv[8]; | |
2264dfa5 | 1073 | |
fe72d420 | 1074 | close_pack_index(p); |
2264dfa5 | 1075 | |
3065274c SP |
1076 | fclose(preq->packfile); |
1077 | preq->packfile = NULL; | |
1078 | preq->slot->local = NULL; | |
2264dfa5 TRC |
1079 | |
1080 | lst = preq->lst; | |
021ab6f0 | 1081 | while (*lst != p) |
2264dfa5 TRC |
1082 | lst = &((*lst)->next); |
1083 | *lst = (*lst)->next; | |
1084 | ||
fe72d420 SP |
1085 | tmp_idx = xstrdup(preq->tmpfile); |
1086 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1087 | ".idx.temp"); | |
1088 | ||
1089 | ip_argv[0] = "index-pack"; | |
1090 | ip_argv[1] = "-o"; | |
1091 | ip_argv[2] = tmp_idx; | |
1092 | ip_argv[3] = preq->tmpfile; | |
1093 | ip_argv[4] = NULL; | |
1094 | ||
1095 | memset(&ip, 0, sizeof(ip)); | |
1096 | ip.argv = ip_argv; | |
1097 | ip.git_cmd = 1; | |
1098 | ip.no_stdin = 1; | |
1099 | ip.no_stdout = 1; | |
1100 | ||
1101 | if (run_command(&ip)) { | |
1102 | unlink(preq->tmpfile); | |
1103 | unlink(tmp_idx); | |
1104 | free(tmp_idx); | |
2264dfa5 | 1105 | return -1; |
fe72d420 SP |
1106 | } |
1107 | ||
1108 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1109 | |
fe72d420 SP |
1110 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1111 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1112 | free(tmp_idx); | |
2264dfa5 | 1113 | return -1; |
fe72d420 | 1114 | } |
2264dfa5 | 1115 | |
fe72d420 SP |
1116 | install_packed_git(p); |
1117 | free(tmp_idx); | |
2264dfa5 TRC |
1118 | return 0; |
1119 | } | |
1120 | ||
1121 | struct http_pack_request *new_http_pack_request( | |
1122 | struct packed_git *target, const char *base_url) | |
1123 | { | |
2264dfa5 TRC |
1124 | long prev_posn = 0; |
1125 | char range[RANGE_HEADER_SIZE]; | |
1126 | struct strbuf buf = STRBUF_INIT; | |
1127 | struct http_pack_request *preq; | |
1128 | ||
ec99c9a8 | 1129 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1130 | preq->target = target; |
2264dfa5 TRC |
1131 | |
1132 | end_url_with_slash(&buf, base_url); | |
1133 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1134 | sha1_to_hex(target->sha1)); | |
bb99190e | 1135 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1136 | |
90d05713 TRC |
1137 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1138 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1139 | preq->packfile = fopen(preq->tmpfile, "a"); |
1140 | if (!preq->packfile) { | |
1141 | error("Unable to open local file %s for pack", | |
1142 | preq->tmpfile); | |
1143 | goto abort; | |
1144 | } | |
1145 | ||
1146 | preq->slot = get_active_slot(); | |
1147 | preq->slot->local = preq->packfile; | |
1148 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); | |
1149 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1150 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1151 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1152 | no_pragma_header); | |
1153 | ||
1154 | /* | |
1155 | * If there is data present from a previous transfer attempt, | |
1156 | * resume where it left off | |
1157 | */ | |
1158 | prev_posn = ftell(preq->packfile); | |
1159 | if (prev_posn>0) { | |
1160 | if (http_is_verbose) | |
1161 | fprintf(stderr, | |
1162 | "Resuming fetch of pack %s at byte %ld\n", | |
1163 | sha1_to_hex(target->sha1), prev_posn); | |
1164 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1165 | preq->range_header = curl_slist_append(NULL, range); | |
1166 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1167 | preq->range_header); | |
1168 | } | |
1169 | ||
1170 | return preq; | |
1171 | ||
1172 | abort: | |
bb99190e | 1173 | free(preq->url); |
5ae9ebfd | 1174 | free(preq); |
2264dfa5 TRC |
1175 | return NULL; |
1176 | } | |
5424bc55 TRC |
1177 | |
1178 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1179 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1180 | void *data) |
1181 | { | |
1182 | unsigned char expn[4096]; | |
1183 | size_t size = eltsize * nmemb; | |
1184 | int posn = 0; | |
1185 | struct http_object_request *freq = | |
1186 | (struct http_object_request *)data; | |
1187 | do { | |
1188 | ssize_t retval = xwrite(freq->localfile, | |
1189 | (char *) ptr + posn, size - posn); | |
1190 | if (retval < 0) | |
1191 | return posn; | |
1192 | posn += retval; | |
1193 | } while (posn < size); | |
1194 | ||
1195 | freq->stream.avail_in = size; | |
a04ff3ec | 1196 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1197 | do { |
1198 | freq->stream.next_out = expn; | |
1199 | freq->stream.avail_out = sizeof(expn); | |
1200 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1201 | git_SHA1_Update(&freq->c, expn, | |
1202 | sizeof(expn) - freq->stream.avail_out); | |
1203 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
1204 | data_received++; | |
1205 | return size; | |
1206 | } | |
1207 | ||
1208 | struct http_object_request *new_http_object_request(const char *base_url, | |
1209 | unsigned char *sha1) | |
1210 | { | |
1211 | char *hex = sha1_to_hex(sha1); | |
1212 | char *filename; | |
1213 | char prevfile[PATH_MAX]; | |
5424bc55 | 1214 | int prevlocal; |
a04ff3ec | 1215 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1216 | ssize_t prev_read = 0; |
1217 | long prev_posn = 0; | |
1218 | char range[RANGE_HEADER_SIZE]; | |
1219 | struct curl_slist *range_header = NULL; | |
1220 | struct http_object_request *freq; | |
1221 | ||
ec99c9a8 | 1222 | freq = xcalloc(1, sizeof(*freq)); |
5424bc55 TRC |
1223 | hashcpy(freq->sha1, sha1); |
1224 | freq->localfile = -1; | |
1225 | ||
1226 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1227 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1228 | "%s.temp", filename); | |
1229 | ||
1230 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1231 | unlink_or_warn(prevfile); | |
1232 | rename(freq->tmpfile, prevfile); | |
1233 | unlink_or_warn(freq->tmpfile); | |
1234 | ||
1235 | if (freq->localfile != -1) | |
1236 | error("fd leakage in start: %d", freq->localfile); | |
1237 | freq->localfile = open(freq->tmpfile, | |
1238 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1239 | /* | |
1240 | * This could have failed due to the "lazy directory creation"; | |
1241 | * try to mkdir the last path component. | |
1242 | */ | |
1243 | if (freq->localfile < 0 && errno == ENOENT) { | |
1244 | char *dir = strrchr(freq->tmpfile, '/'); | |
1245 | if (dir) { | |
1246 | *dir = 0; | |
1247 | mkdir(freq->tmpfile, 0777); | |
1248 | *dir = '/'; | |
1249 | } | |
1250 | freq->localfile = open(freq->tmpfile, | |
1251 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1252 | } | |
1253 | ||
1254 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1255 | error("Couldn't create temporary file %s: %s", |
1256 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1257 | goto abort; |
1258 | } | |
1259 | ||
5424bc55 TRC |
1260 | git_inflate_init(&freq->stream); |
1261 | ||
1262 | git_SHA1_Init(&freq->c); | |
1263 | ||
bb99190e | 1264 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1265 | |
1266 | /* | |
1267 | * If a previous temp file is present, process what was already | |
1268 | * fetched. | |
1269 | */ | |
1270 | prevlocal = open(prevfile, O_RDONLY); | |
1271 | if (prevlocal != -1) { | |
1272 | do { | |
1273 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1274 | if (prev_read>0) { | |
1275 | if (fwrite_sha1_file(prev_buf, | |
1276 | 1, | |
1277 | prev_read, | |
1278 | freq) == prev_read) { | |
1279 | prev_posn += prev_read; | |
1280 | } else { | |
1281 | prev_read = -1; | |
1282 | } | |
1283 | } | |
1284 | } while (prev_read > 0); | |
1285 | close(prevlocal); | |
1286 | } | |
1287 | unlink_or_warn(prevfile); | |
1288 | ||
1289 | /* | |
1290 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1291 | * file; also rewind to the beginning of the local file. | |
1292 | */ | |
1293 | if (prev_read == -1) { | |
1294 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1295 | git_inflate_init(&freq->stream); | |
1296 | git_SHA1_Init(&freq->c); | |
1297 | if (prev_posn>0) { | |
1298 | prev_posn = 0; | |
1299 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1300 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1301 | error("Couldn't truncate temporary file %s: %s", |
1302 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1303 | goto abort; |
1304 | } | |
5424bc55 TRC |
1305 | } |
1306 | } | |
1307 | ||
1308 | freq->slot = get_active_slot(); | |
1309 | ||
1310 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1311 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1312 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1313 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1314 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1315 | ||
1316 | /* | |
1317 | * If we have successfully processed data from a previous fetch | |
1318 | * attempt, only fetch the data we don't already have. | |
1319 | */ | |
1320 | if (prev_posn>0) { | |
1321 | if (http_is_verbose) | |
1322 | fprintf(stderr, | |
1323 | "Resuming fetch of object %s at byte %ld\n", | |
1324 | hex, prev_posn); | |
1325 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1326 | range_header = curl_slist_append(range_header, range); | |
1327 | curl_easy_setopt(freq->slot->curl, | |
1328 | CURLOPT_HTTPHEADER, range_header); | |
1329 | } | |
1330 | ||
1331 | return freq; | |
1332 | ||
5424bc55 | 1333 | abort: |
bb99190e | 1334 | free(freq->url); |
5424bc55 TRC |
1335 | free(freq); |
1336 | return NULL; | |
1337 | } | |
1338 | ||
1339 | void process_http_object_request(struct http_object_request *freq) | |
1340 | { | |
1341 | if (freq->slot == NULL) | |
1342 | return; | |
1343 | freq->curl_result = freq->slot->curl_result; | |
1344 | freq->http_code = freq->slot->http_code; | |
1345 | freq->slot = NULL; | |
1346 | } | |
1347 | ||
1348 | int finish_http_object_request(struct http_object_request *freq) | |
1349 | { | |
1350 | struct stat st; | |
1351 | ||
1352 | close(freq->localfile); | |
1353 | freq->localfile = -1; | |
1354 | ||
1355 | process_http_object_request(freq); | |
1356 | ||
1357 | if (freq->http_code == 416) { | |
bd757c18 | 1358 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1359 | } else if (freq->curl_result != CURLE_OK) { |
1360 | if (stat(freq->tmpfile, &st) == 0) | |
1361 | if (st.st_size == 0) | |
1362 | unlink_or_warn(freq->tmpfile); | |
1363 | return -1; | |
1364 | } | |
1365 | ||
1366 | git_inflate_end(&freq->stream); | |
1367 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1368 | if (freq->zret != Z_STREAM_END) { | |
1369 | unlink_or_warn(freq->tmpfile); | |
1370 | return -1; | |
1371 | } | |
1372 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1373 | unlink_or_warn(freq->tmpfile); | |
1374 | return -1; | |
1375 | } | |
1376 | freq->rename = | |
0da8b2e7 | 1377 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1378 | |
1379 | return freq->rename; | |
1380 | } | |
1381 | ||
1382 | void abort_http_object_request(struct http_object_request *freq) | |
1383 | { | |
1384 | unlink_or_warn(freq->tmpfile); | |
1385 | ||
1386 | release_http_object_request(freq); | |
1387 | } | |
1388 | ||
1389 | void release_http_object_request(struct http_object_request *freq) | |
1390 | { | |
1391 | if (freq->localfile != -1) { | |
1392 | close(freq->localfile); | |
1393 | freq->localfile = -1; | |
1394 | } | |
1395 | if (freq->url != NULL) { | |
1396 | free(freq->url); | |
1397 | freq->url = NULL; | |
1398 | } | |
4b9fa0e3 TRC |
1399 | if (freq->slot != NULL) { |
1400 | freq->slot->callback_func = NULL; | |
1401 | freq->slot->callback_data = NULL; | |
1402 | release_active_slot(freq->slot); | |
1403 | freq->slot = NULL; | |
1404 | } | |
5424bc55 | 1405 | } |