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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; | |
c33976cb | 44 | static char *user_name, *user_pass; |
b1d1058c | 45 | static const char *user_agent; |
29508e1e | 46 | |
30dd9163 ML |
47 | #if LIBCURL_VERSION_NUM >= 0x071700 |
48 | /* Use CURLOPT_KEYPASSWD as is */ | |
49 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
50 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
51 | #else | |
52 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
53 | #endif | |
54 | ||
55 | static char *ssl_cert_password; | |
56 | static int ssl_cert_password_required; | |
57 | ||
cc3530e8 | 58 | static struct curl_slist *pragma_header; |
5424bc55 | 59 | static struct curl_slist *no_pragma_header; |
e9176745 | 60 | |
4251ccbd | 61 | static struct active_request_slot *active_queue_head; |
29508e1e | 62 | |
f444e528 | 63 | size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
64 | { |
65 | size_t size = eltsize * nmemb; | |
f444e528 JH |
66 | struct buffer *buffer = buffer_; |
67 | ||
028c2976 MH |
68 | if (size > buffer->buf.len - buffer->posn) |
69 | size = buffer->buf.len - buffer->posn; | |
70 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 71 | buffer->posn += size; |
028c2976 | 72 | |
29508e1e NH |
73 | return size; |
74 | } | |
75 | ||
3944ba0c MS |
76 | #ifndef NO_CURL_IOCTL |
77 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
78 | { | |
79 | struct buffer *buffer = clientp; | |
80 | ||
81 | switch (cmd) { | |
82 | case CURLIOCMD_NOP: | |
83 | return CURLIOE_OK; | |
84 | ||
85 | case CURLIOCMD_RESTARTREAD: | |
86 | buffer->posn = 0; | |
87 | return CURLIOE_OK; | |
88 | ||
89 | default: | |
90 | return CURLIOE_UNKNOWNCMD; | |
91 | } | |
92 | } | |
93 | #endif | |
94 | ||
f444e528 | 95 | size_t fwrite_buffer(const void *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
96 | { |
97 | size_t size = eltsize * nmemb; | |
f444e528 JH |
98 | struct strbuf *buffer = buffer_; |
99 | ||
028c2976 | 100 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
101 | data_received++; |
102 | return size; | |
103 | } | |
104 | ||
f444e528 | 105 | size_t fwrite_null(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e NH |
106 | { |
107 | data_received++; | |
108 | return eltsize * nmemb; | |
109 | } | |
110 | ||
29508e1e NH |
111 | #ifdef USE_CURL_MULTI |
112 | static void process_curl_messages(void) | |
113 | { | |
114 | int num_messages; | |
115 | struct active_request_slot *slot; | |
116 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
117 | ||
118 | while (curl_message != NULL) { | |
119 | if (curl_message->msg == CURLMSG_DONE) { | |
120 | int curl_result = curl_message->data.result; | |
121 | slot = active_queue_head; | |
122 | while (slot != NULL && | |
123 | slot->curl != curl_message->easy_handle) | |
124 | slot = slot->next; | |
125 | if (slot != NULL) { | |
126 | curl_multi_remove_handle(curlm, slot->curl); | |
127 | slot->curl_result = curl_result; | |
128 | finish_active_slot(slot); | |
129 | } else { | |
130 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
131 | } | |
132 | } else { | |
133 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
134 | (int)curl_message->msg); | |
135 | } | |
136 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
137 | } | |
138 | } | |
139 | #endif | |
140 | ||
ef90d6d4 | 141 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
142 | { |
143 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 144 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
145 | return 0; |
146 | } | |
7059cd99 JH |
147 | if (!strcmp("http.sslcert", var)) |
148 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 149 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
150 | if (!strcmp("http.sslkey", var)) |
151 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
152 | #endif |
153 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
154 | if (!strcmp("http.sslcapath", var)) |
155 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 156 | #endif |
7059cd99 JH |
157 | if (!strcmp("http.sslcainfo", var)) |
158 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 ML |
159 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
160 | if (git_config_bool(var, value)) | |
161 | ssl_cert_password_required = 1; | |
162 | return 0; | |
163 | } | |
ad75ebe5 TRC |
164 | if (!strcmp("http.minsessions", var)) { |
165 | min_curl_sessions = git_config_int(var, value); | |
166 | #ifndef USE_CURL_MULTI | |
167 | if (min_curl_sessions > 1) | |
168 | min_curl_sessions = 1; | |
169 | #endif | |
170 | return 0; | |
171 | } | |
a6080a0a | 172 | #ifdef USE_CURL_MULTI |
29508e1e | 173 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 174 | max_requests = git_config_int(var, value); |
29508e1e NH |
175 | return 0; |
176 | } | |
177 | #endif | |
29508e1e | 178 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 179 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
180 | return 0; |
181 | } | |
182 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 183 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
184 | return 0; |
185 | } | |
186 | ||
3ea099d4 SK |
187 | if (!strcmp("http.noepsv", var)) { |
188 | curl_ftp_no_epsv = git_config_bool(var, value); | |
189 | return 0; | |
190 | } | |
7059cd99 JH |
191 | if (!strcmp("http.proxy", var)) |
192 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 193 | |
de1a2fdd SP |
194 | if (!strcmp("http.postbuffer", var)) { |
195 | http_post_buffer = git_config_int(var, value); | |
196 | if (http_post_buffer < LARGE_PACKET_MAX) | |
197 | http_post_buffer = LARGE_PACKET_MAX; | |
198 | return 0; | |
199 | } | |
200 | ||
b1d1058c SO |
201 | if (!strcmp("http.useragent", var)) |
202 | return git_config_string(&user_agent, var, value); | |
203 | ||
29508e1e | 204 | /* Fall back on the default ones */ |
ef90d6d4 | 205 | return git_default_config(var, value, cb); |
29508e1e NH |
206 | } |
207 | ||
c33976cb JH |
208 | static void init_curl_http_auth(CURL *result) |
209 | { | |
750d9305 | 210 | if (user_name) { |
c33976cb JH |
211 | struct strbuf up = STRBUF_INIT; |
212 | if (!user_pass) | |
f206063b | 213 | user_pass = xstrdup(git_getpass("Password: ")); |
c33976cb JH |
214 | strbuf_addf(&up, "%s:%s", user_name, user_pass); |
215 | curl_easy_setopt(result, CURLOPT_USERPWD, | |
216 | strbuf_detach(&up, NULL)); | |
217 | } | |
218 | } | |
219 | ||
30dd9163 ML |
220 | static int has_cert_password(void) |
221 | { | |
222 | if (ssl_cert_password != NULL) | |
223 | return 1; | |
224 | if (ssl_cert == NULL || ssl_cert_password_required != 1) | |
225 | return 0; | |
226 | /* Only prompt the user once. */ | |
227 | ssl_cert_password_required = -1; | |
f206063b | 228 | ssl_cert_password = git_getpass("Certificate Password: "); |
30dd9163 ML |
229 | if (ssl_cert_password != NULL) { |
230 | ssl_cert_password = xstrdup(ssl_cert_password); | |
231 | return 1; | |
232 | } else | |
233 | return 0; | |
234 | } | |
235 | ||
4251ccbd | 236 | static CURL *get_curl_handle(void) |
11979b98 | 237 | { |
4251ccbd | 238 | CURL *result = curl_easy_init(); |
11979b98 | 239 | |
a5ccc597 JH |
240 | if (!curl_ssl_verify) { |
241 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
242 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
243 | } else { | |
244 | /* Verify authenticity of the peer's certificate */ | |
245 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
246 | /* The name in the cert must match whom we tried to connect */ | |
247 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
248 | } | |
249 | ||
11979b98 JH |
250 | #if LIBCURL_VERSION_NUM >= 0x070907 |
251 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
252 | #endif | |
b8ac9230 | 253 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 254 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 255 | #endif |
11979b98 | 256 | |
c33976cb JH |
257 | init_curl_http_auth(result); |
258 | ||
11979b98 JH |
259 | if (ssl_cert != NULL) |
260 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 ML |
261 | if (has_cert_password()) |
262 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, ssl_cert_password); | |
ef52aafa | 263 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
264 | if (ssl_key != NULL) |
265 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
266 | #endif | |
267 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
268 | if (ssl_capath != NULL) | |
269 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
270 | #endif | |
271 | if (ssl_cainfo != NULL) | |
272 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
273 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
274 | ||
275 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
276 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
277 | curl_low_speed_limit); | |
278 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
279 | curl_low_speed_time); | |
280 | } | |
281 | ||
282 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
283 | #if LIBCURL_VERSION_NUM >= 0x071301 |
284 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
285 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
286 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
287 | #endif | |
11979b98 | 288 | |
7982d74e MW |
289 | if (getenv("GIT_CURL_VERBOSE")) |
290 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
291 | ||
b1d1058c SO |
292 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
293 | user_agent ? user_agent : GIT_HTTP_USER_AGENT); | |
20fc9bc5 | 294 | |
3ea099d4 SK |
295 | if (curl_ftp_no_epsv) |
296 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
297 | ||
9c5665aa SV |
298 | if (curl_http_proxy) |
299 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); | |
300 | ||
11979b98 JH |
301 | return result; |
302 | } | |
303 | ||
c33976cb JH |
304 | static void http_auth_init(const char *url) |
305 | { | |
f39f72d8 | 306 | char *at, *colon, *cp, *slash, *decoded; |
c33976cb JH |
307 | int len; |
308 | ||
309 | cp = strstr(url, "://"); | |
310 | if (!cp) | |
311 | return; | |
312 | ||
313 | /* | |
314 | * Ok, the URL looks like "proto://something". Which one? | |
315 | * "proto://<user>:<pass>@<host>/...", | |
316 | * "proto://<user>@<host>/...", or just | |
317 | * "proto://<host>/..."? | |
318 | */ | |
319 | cp += 3; | |
320 | at = strchr(cp, '@'); | |
321 | colon = strchr(cp, ':'); | |
322 | slash = strchrnul(cp, '/'); | |
323 | if (!at || slash <= at) | |
324 | return; /* No credentials */ | |
325 | if (!colon || at <= colon) { | |
326 | /* Only username */ | |
327 | len = at - cp; | |
328 | user_name = xmalloc(len + 1); | |
329 | memcpy(user_name, cp, len); | |
330 | user_name[len] = '\0'; | |
f39f72d8 GC |
331 | decoded = url_decode(user_name); |
332 | free(user_name); | |
333 | user_name = decoded; | |
c33976cb JH |
334 | user_pass = NULL; |
335 | } else { | |
336 | len = colon - cp; | |
337 | user_name = xmalloc(len + 1); | |
338 | memcpy(user_name, cp, len); | |
339 | user_name[len] = '\0'; | |
f39f72d8 GC |
340 | decoded = url_decode(user_name); |
341 | free(user_name); | |
342 | user_name = decoded; | |
c33976cb JH |
343 | len = at - (colon + 1); |
344 | user_pass = xmalloc(len + 1); | |
345 | memcpy(user_pass, colon + 1, len); | |
346 | user_pass[len] = '\0'; | |
f39f72d8 GC |
347 | decoded = url_decode(user_pass); |
348 | free(user_pass); | |
349 | user_pass = decoded; | |
c33976cb JH |
350 | } |
351 | } | |
352 | ||
7059cd99 JH |
353 | static void set_from_env(const char **var, const char *envname) |
354 | { | |
355 | const char *val = getenv(envname); | |
356 | if (val) | |
357 | *var = val; | |
358 | } | |
359 | ||
9fc6440d | 360 | void http_init(struct remote *remote) |
29508e1e NH |
361 | { |
362 | char *low_speed_limit; | |
363 | char *low_speed_time; | |
364 | ||
e9176745 TRC |
365 | http_is_verbose = 0; |
366 | ||
7059cd99 JH |
367 | git_config(http_options, NULL); |
368 | ||
29508e1e NH |
369 | curl_global_init(CURL_GLOBAL_ALL); |
370 | ||
9fc6440d MH |
371 | if (remote && remote->http_proxy) |
372 | curl_http_proxy = xstrdup(remote->http_proxy); | |
373 | ||
29508e1e | 374 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 375 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
376 | |
377 | #ifdef USE_CURL_MULTI | |
378 | { | |
379 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
380 | if (http_max_requests != NULL) | |
381 | max_requests = atoi(http_max_requests); | |
382 | } | |
383 | ||
384 | curlm = curl_multi_init(); | |
385 | if (curlm == NULL) { | |
386 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
387 | exit(1); | |
388 | } | |
389 | #endif | |
390 | ||
391 | if (getenv("GIT_SSL_NO_VERIFY")) | |
392 | curl_ssl_verify = 0; | |
393 | ||
7059cd99 | 394 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 395 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 396 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
397 | #endif |
398 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 399 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 400 | #endif |
7059cd99 | 401 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 402 | |
b1d1058c SO |
403 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
404 | ||
29508e1e NH |
405 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
406 | if (low_speed_limit != NULL) | |
407 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
408 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
409 | if (low_speed_time != NULL) | |
410 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
411 | ||
29508e1e NH |
412 | if (curl_ssl_verify == -1) |
413 | curl_ssl_verify = 1; | |
414 | ||
ad75ebe5 | 415 | curl_session_count = 0; |
29508e1e NH |
416 | #ifdef USE_CURL_MULTI |
417 | if (max_requests < 1) | |
418 | max_requests = DEFAULT_MAX_REQUESTS; | |
419 | #endif | |
420 | ||
3ea099d4 SK |
421 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
422 | curl_ftp_no_epsv = 1; | |
423 | ||
30dd9163 | 424 | if (remote && remote->url && remote->url[0]) { |
c33976cb | 425 | http_auth_init(remote->url[0]); |
754ae192 ML |
426 | if (!ssl_cert_password_required && |
427 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
428 | !prefixcmp(remote->url[0], "https://")) | |
30dd9163 ML |
429 | ssl_cert_password_required = 1; |
430 | } | |
c33976cb | 431 | |
29508e1e NH |
432 | #ifndef NO_CURL_EASY_DUPHANDLE |
433 | curl_default = get_curl_handle(); | |
434 | #endif | |
435 | } | |
436 | ||
437 | void http_cleanup(void) | |
438 | { | |
439 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
440 | |
441 | while (slot != NULL) { | |
3278cd0a | 442 | struct active_request_slot *next = slot->next; |
f23d1f76 | 443 | if (slot->curl != NULL) { |
29508e1e | 444 | #ifdef USE_CURL_MULTI |
f23d1f76 | 445 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 446 | #endif |
29508e1e | 447 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 448 | } |
3278cd0a SP |
449 | free(slot); |
450 | slot = next; | |
29508e1e | 451 | } |
3278cd0a | 452 | active_queue_head = NULL; |
29508e1e NH |
453 | |
454 | #ifndef NO_CURL_EASY_DUPHANDLE | |
455 | curl_easy_cleanup(curl_default); | |
456 | #endif | |
457 | ||
458 | #ifdef USE_CURL_MULTI | |
459 | curl_multi_cleanup(curlm); | |
460 | #endif | |
461 | curl_global_cleanup(); | |
b3ca4e4e NH |
462 | |
463 | curl_slist_free_all(pragma_header); | |
3278cd0a | 464 | pragma_header = NULL; |
9fc6440d | 465 | |
e9176745 TRC |
466 | curl_slist_free_all(no_pragma_header); |
467 | no_pragma_header = NULL; | |
468 | ||
9fc6440d | 469 | if (curl_http_proxy) { |
e4a80ecf | 470 | free((void *)curl_http_proxy); |
9fc6440d MH |
471 | curl_http_proxy = NULL; |
472 | } | |
30dd9163 ML |
473 | |
474 | if (ssl_cert_password != NULL) { | |
475 | memset(ssl_cert_password, 0, strlen(ssl_cert_password)); | |
476 | free(ssl_cert_password); | |
477 | ssl_cert_password = NULL; | |
478 | } | |
479 | ssl_cert_password_required = 0; | |
29508e1e NH |
480 | } |
481 | ||
29508e1e NH |
482 | struct active_request_slot *get_active_slot(void) |
483 | { | |
484 | struct active_request_slot *slot = active_queue_head; | |
485 | struct active_request_slot *newslot; | |
486 | ||
487 | #ifdef USE_CURL_MULTI | |
488 | int num_transfers; | |
489 | ||
490 | /* Wait for a slot to open up if the queue is full */ | |
491 | while (active_requests >= max_requests) { | |
492 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 493 | if (num_transfers < active_requests) |
29508e1e | 494 | process_curl_messages(); |
29508e1e NH |
495 | } |
496 | #endif | |
497 | ||
4251ccbd | 498 | while (slot != NULL && slot->in_use) |
29508e1e | 499 | slot = slot->next; |
4251ccbd | 500 | |
29508e1e NH |
501 | if (slot == NULL) { |
502 | newslot = xmalloc(sizeof(*newslot)); | |
503 | newslot->curl = NULL; | |
504 | newslot->in_use = 0; | |
505 | newslot->next = NULL; | |
506 | ||
507 | slot = active_queue_head; | |
508 | if (slot == NULL) { | |
509 | active_queue_head = newslot; | |
510 | } else { | |
4251ccbd | 511 | while (slot->next != NULL) |
29508e1e | 512 | slot = slot->next; |
29508e1e NH |
513 | slot->next = newslot; |
514 | } | |
515 | slot = newslot; | |
516 | } | |
517 | ||
518 | if (slot->curl == NULL) { | |
519 | #ifdef NO_CURL_EASY_DUPHANDLE | |
520 | slot->curl = get_curl_handle(); | |
521 | #else | |
522 | slot->curl = curl_easy_duphandle(curl_default); | |
523 | #endif | |
ad75ebe5 | 524 | curl_session_count++; |
29508e1e NH |
525 | } |
526 | ||
527 | active_requests++; | |
528 | slot->in_use = 1; | |
529 | slot->local = NULL; | |
c8568e13 | 530 | slot->results = NULL; |
baa7b67d | 531 | slot->finished = NULL; |
29508e1e NH |
532 | slot->callback_data = NULL; |
533 | slot->callback_func = NULL; | |
534 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); | |
29508e1e | 535 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
536 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
537 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
538 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
539 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); | |
540 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
29508e1e NH |
541 | |
542 | return slot; | |
543 | } | |
544 | ||
545 | int start_active_slot(struct active_request_slot *slot) | |
546 | { | |
547 | #ifdef USE_CURL_MULTI | |
548 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 549 | int num_transfers; |
29508e1e NH |
550 | |
551 | if (curlm_result != CURLM_OK && | |
552 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
553 | active_requests--; | |
554 | slot->in_use = 0; | |
555 | return 0; | |
556 | } | |
45c17412 DB |
557 | |
558 | /* | |
559 | * We know there must be something to do, since we just added | |
560 | * something. | |
561 | */ | |
562 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
563 | #endif |
564 | return 1; | |
565 | } | |
566 | ||
567 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
568 | struct fill_chain { |
569 | void *data; | |
570 | int (*fill)(void *); | |
571 | struct fill_chain *next; | |
572 | }; | |
573 | ||
4251ccbd | 574 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
575 | |
576 | void add_fill_function(void *data, int (*fill)(void *)) | |
577 | { | |
e8eec71d | 578 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
579 | struct fill_chain **linkp = &fill_cfg; |
580 | new->data = data; | |
581 | new->fill = fill; | |
582 | new->next = NULL; | |
583 | while (*linkp) | |
584 | linkp = &(*linkp)->next; | |
585 | *linkp = new; | |
586 | } | |
587 | ||
45c17412 DB |
588 | void fill_active_slots(void) |
589 | { | |
590 | struct active_request_slot *slot = active_queue_head; | |
591 | ||
fc57b6aa DB |
592 | while (active_requests < max_requests) { |
593 | struct fill_chain *fill; | |
594 | for (fill = fill_cfg; fill; fill = fill->next) | |
595 | if (fill->fill(fill->data)) | |
596 | break; | |
597 | ||
598 | if (!fill) | |
45c17412 | 599 | break; |
fc57b6aa | 600 | } |
45c17412 DB |
601 | |
602 | while (slot != NULL) { | |
ad75ebe5 TRC |
603 | if (!slot->in_use && slot->curl != NULL |
604 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
605 | curl_easy_cleanup(slot->curl); |
606 | slot->curl = NULL; | |
ad75ebe5 | 607 | curl_session_count--; |
45c17412 DB |
608 | } |
609 | slot = slot->next; | |
610 | } | |
611 | } | |
612 | ||
29508e1e NH |
613 | void step_active_slots(void) |
614 | { | |
615 | int num_transfers; | |
616 | CURLMcode curlm_result; | |
617 | ||
618 | do { | |
619 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
620 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
621 | if (num_transfers < active_requests) { | |
622 | process_curl_messages(); | |
623 | fill_active_slots(); | |
624 | } | |
625 | } | |
626 | #endif | |
627 | ||
628 | void run_active_slot(struct active_request_slot *slot) | |
629 | { | |
630 | #ifdef USE_CURL_MULTI | |
631 | long last_pos = 0; | |
632 | long current_pos; | |
633 | fd_set readfds; | |
634 | fd_set writefds; | |
635 | fd_set excfds; | |
636 | int max_fd; | |
637 | struct timeval select_timeout; | |
baa7b67d | 638 | int finished = 0; |
29508e1e | 639 | |
baa7b67d NH |
640 | slot->finished = &finished; |
641 | while (!finished) { | |
29508e1e NH |
642 | data_received = 0; |
643 | step_active_slots(); | |
644 | ||
645 | if (!data_received && slot->local != NULL) { | |
646 | current_pos = ftell(slot->local); | |
647 | if (current_pos > last_pos) | |
648 | data_received++; | |
649 | last_pos = current_pos; | |
650 | } | |
651 | ||
652 | if (slot->in_use && !data_received) { | |
653 | max_fd = 0; | |
654 | FD_ZERO(&readfds); | |
655 | FD_ZERO(&writefds); | |
656 | FD_ZERO(&excfds); | |
657 | select_timeout.tv_sec = 0; | |
658 | select_timeout.tv_usec = 50000; | |
659 | select(max_fd, &readfds, &writefds, | |
660 | &excfds, &select_timeout); | |
661 | } | |
662 | } | |
663 | #else | |
664 | while (slot->in_use) { | |
665 | slot->curl_result = curl_easy_perform(slot->curl); | |
666 | finish_active_slot(slot); | |
667 | } | |
668 | #endif | |
669 | } | |
670 | ||
53f31389 | 671 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 672 | { |
028c2976 MH |
673 | active_requests--; |
674 | slot->in_use = 0; | |
53f31389 MW |
675 | } |
676 | ||
83e41e2e | 677 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
678 | { |
679 | closedown_active_slot(slot); | |
ad75ebe5 | 680 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 681 | #ifdef USE_CURL_MULTI |
53f31389 | 682 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 683 | #endif |
53f31389 MW |
684 | curl_easy_cleanup(slot->curl); |
685 | slot->curl = NULL; | |
ad75ebe5 | 686 | curl_session_count--; |
53f31389 | 687 | } |
b3ca4e4e | 688 | #ifdef USE_CURL_MULTI |
53f31389 | 689 | fill_active_slots(); |
b3ca4e4e | 690 | #endif |
53f31389 MW |
691 | } |
692 | ||
de1a2fdd | 693 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
694 | { |
695 | closedown_active_slot(slot); | |
028c2976 | 696 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 697 | |
baa7b67d NH |
698 | if (slot->finished != NULL) |
699 | (*slot->finished) = 1; | |
700 | ||
c8568e13 NH |
701 | /* Store slot results so they can be read after the slot is reused */ |
702 | if (slot->results != NULL) { | |
703 | slot->results->curl_result = slot->curl_result; | |
704 | slot->results->http_code = slot->http_code; | |
705 | } | |
706 | ||
028c2976 | 707 | /* Run callback if appropriate */ |
4251ccbd | 708 | if (slot->callback_func != NULL) |
028c2976 | 709 | slot->callback_func(slot->callback_data); |
29508e1e NH |
710 | } |
711 | ||
712 | void finish_all_active_slots(void) | |
713 | { | |
714 | struct active_request_slot *slot = active_queue_head; | |
715 | ||
716 | while (slot != NULL) | |
717 | if (slot->in_use) { | |
718 | run_active_slot(slot); | |
719 | slot = active_queue_head; | |
720 | } else { | |
721 | slot = slot->next; | |
722 | } | |
723 | } | |
d7e92806 | 724 | |
5ace994f | 725 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
726 | static inline int needs_quote(int ch) |
727 | { | |
728 | if (((ch >= 'A') && (ch <= 'Z')) | |
729 | || ((ch >= 'a') && (ch <= 'z')) | |
730 | || ((ch >= '0') && (ch <= '9')) | |
731 | || (ch == '/') | |
732 | || (ch == '-') | |
733 | || (ch == '.')) | |
734 | return 0; | |
735 | return 1; | |
736 | } | |
737 | ||
738 | static inline int hex(int v) | |
739 | { | |
4251ccbd JH |
740 | if (v < 10) |
741 | return '0' + v; | |
742 | else | |
743 | return 'A' + v - 10; | |
d7e92806 MH |
744 | } |
745 | ||
746 | static char *quote_ref_url(const char *base, const char *ref) | |
747 | { | |
113106e0 | 748 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 749 | const char *cp; |
113106e0 | 750 | int ch; |
d7e92806 | 751 | |
5ace994f | 752 | end_url_with_slash(&buf, base); |
113106e0 TRC |
753 | |
754 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 755 | if (needs_quote(ch)) |
113106e0 | 756 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 757 | else |
113106e0 | 758 | strbuf_addch(&buf, *cp); |
d7e92806 | 759 | |
113106e0 | 760 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
761 | } |
762 | ||
5424bc55 TRC |
763 | void append_remote_object_url(struct strbuf *buf, const char *url, |
764 | const char *hex, | |
765 | int only_two_digit_prefix) | |
766 | { | |
800324c3 TRC |
767 | end_url_with_slash(buf, url); |
768 | ||
769 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
770 | if (!only_two_digit_prefix) |
771 | strbuf_addf(buf, "%s", hex+2); | |
772 | } | |
773 | ||
774 | char *get_remote_object_url(const char *url, const char *hex, | |
775 | int only_two_digit_prefix) | |
776 | { | |
777 | struct strbuf buf = STRBUF_INIT; | |
778 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
779 | return strbuf_detach(&buf, NULL); | |
780 | } | |
781 | ||
e929cd20 MH |
782 | /* http_request() targets */ |
783 | #define HTTP_REQUEST_STRBUF 0 | |
784 | #define HTTP_REQUEST_FILE 1 | |
785 | ||
786 | static int http_request(const char *url, void *result, int target, int options) | |
787 | { | |
788 | struct active_request_slot *slot; | |
789 | struct slot_results results; | |
790 | struct curl_slist *headers = NULL; | |
791 | struct strbuf buf = STRBUF_INIT; | |
792 | int ret; | |
793 | ||
794 | slot = get_active_slot(); | |
795 | slot->results = &results; | |
796 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
797 | ||
798 | if (result == NULL) { | |
799 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
800 | } else { | |
801 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
802 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
803 | ||
804 | if (target == HTTP_REQUEST_FILE) { | |
805 | long posn = ftell(result); | |
806 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
807 | fwrite); | |
808 | if (posn > 0) { | |
809 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
810 | headers = curl_slist_append(headers, buf.buf); | |
811 | strbuf_reset(&buf); | |
812 | } | |
813 | slot->local = result; | |
814 | } else | |
815 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
816 | fwrite_buffer); | |
817 | } | |
818 | ||
819 | strbuf_addstr(&buf, "Pragma:"); | |
820 | if (options & HTTP_NO_CACHE) | |
821 | strbuf_addstr(&buf, " no-cache"); | |
822 | ||
823 | headers = curl_slist_append(headers, buf.buf); | |
824 | ||
825 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
826 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
827 | ||
828 | if (start_active_slot(slot)) { | |
829 | run_active_slot(slot); | |
830 | if (results.curl_result == CURLE_OK) | |
831 | ret = HTTP_OK; | |
832 | else if (missing_target(&results)) | |
833 | ret = HTTP_MISSING_TARGET; | |
42653c09 SC |
834 | else if (results.http_code == 401) { |
835 | if (user_name) { | |
836 | ret = HTTP_NOAUTH; | |
837 | } else { | |
838 | /* | |
839 | * git_getpass is needed here because its very likely stdin/stdout are | |
840 | * pipes to our parent process. So we instead need to use /dev/tty, | |
841 | * but that is non-portable. Using git_getpass() can at least be stubbed | |
842 | * on other platforms with a different implementation if/when necessary. | |
843 | */ | |
844 | user_name = xstrdup(git_getpass("Username: ")); | |
845 | init_curl_http_auth(slot->curl); | |
846 | ret = HTTP_REAUTH; | |
847 | } | |
848 | } else | |
e929cd20 MH |
849 | ret = HTTP_ERROR; |
850 | } else { | |
851 | error("Unable to start HTTP request for %s", url); | |
852 | ret = HTTP_START_FAILED; | |
853 | } | |
854 | ||
855 | slot->local = NULL; | |
856 | curl_slist_free_all(headers); | |
857 | strbuf_release(&buf); | |
858 | ||
859 | return ret; | |
860 | } | |
861 | ||
862 | int http_get_strbuf(const char *url, struct strbuf *result, int options) | |
863 | { | |
42653c09 SC |
864 | int http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); |
865 | if (http_ret == HTTP_REAUTH) { | |
866 | http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); | |
867 | } | |
868 | return http_ret; | |
e929cd20 MH |
869 | } |
870 | ||
83e41e2e JH |
871 | /* |
872 | * Downloads an url and stores the result in the given file. | |
873 | * | |
874 | * If a previous interrupted download is detected (i.e. a previous temporary | |
875 | * file is still around) the download is resumed. | |
876 | */ | |
877 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
878 | { |
879 | int ret; | |
880 | struct strbuf tmpfile = STRBUF_INIT; | |
881 | FILE *result; | |
882 | ||
883 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
884 | result = fopen(tmpfile.buf, "a"); | |
885 | if (! result) { | |
886 | error("Unable to open local file %s", tmpfile.buf); | |
887 | ret = HTTP_ERROR; | |
888 | goto cleanup; | |
889 | } | |
890 | ||
891 | ret = http_request(url, result, HTTP_REQUEST_FILE, options); | |
892 | fclose(result); | |
893 | ||
894 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
895 | ret = HTTP_ERROR; | |
896 | cleanup: | |
897 | strbuf_release(&tmpfile); | |
898 | return ret; | |
899 | } | |
900 | ||
901 | int http_error(const char *url, int ret) | |
902 | { | |
903 | /* http_request has already handled HTTP_START_FAILED. */ | |
904 | if (ret != HTTP_START_FAILED) | |
905 | error("%s while accessing %s\n", curl_errorstr, url); | |
906 | ||
907 | return ret; | |
908 | } | |
909 | ||
c13b2633 | 910 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
911 | { |
912 | char *url; | |
913 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 914 | int ret = -1; |
d7e92806 | 915 | |
c13b2633 | 916 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
917 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
918 | strbuf_rtrim(&buffer); | |
919 | if (buffer.len == 40) | |
920 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
921 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
922 | ref->symref = xstrdup(buffer.buf + 5); | |
923 | ret = 0; | |
d7e92806 | 924 | } |
d7e92806 MH |
925 | } |
926 | ||
927 | strbuf_release(&buffer); | |
928 | free(url); | |
929 | return ret; | |
930 | } | |
b8caac2b TRC |
931 | |
932 | /* Helpers for fetching packs */ | |
750ef425 | 933 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 934 | { |
750ef425 | 935 | char *url, *tmp; |
b8caac2b | 936 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 937 | |
b8caac2b | 938 | if (http_is_verbose) |
162eb5f8 | 939 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
940 | |
941 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 942 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
943 | url = strbuf_detach(&buf, NULL); |
944 | ||
750ef425 SP |
945 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
946 | tmp = strbuf_detach(&buf, NULL); | |
947 | ||
948 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
949 | error("Unable to get pack index %s\n", url); | |
950 | free(tmp); | |
951 | tmp = NULL; | |
952 | } | |
b8caac2b | 953 | |
b8caac2b | 954 | free(url); |
750ef425 | 955 | return tmp; |
b8caac2b TRC |
956 | } |
957 | ||
958 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
959 | unsigned char *sha1, const char *base_url) | |
960 | { | |
961 | struct packed_git *new_pack; | |
750ef425 SP |
962 | char *tmp_idx = NULL; |
963 | int ret; | |
b8caac2b | 964 | |
750ef425 SP |
965 | if (has_pack_index(sha1)) { |
966 | new_pack = parse_pack_index(sha1, NULL); | |
967 | if (!new_pack) | |
968 | return -1; /* parse_pack_index() already issued error message */ | |
969 | goto add_pack; | |
970 | } | |
971 | ||
972 | tmp_idx = fetch_pack_index(sha1, base_url); | |
973 | if (!tmp_idx) | |
b8caac2b TRC |
974 | return -1; |
975 | ||
750ef425 SP |
976 | new_pack = parse_pack_index(sha1, tmp_idx); |
977 | if (!new_pack) { | |
978 | unlink(tmp_idx); | |
979 | free(tmp_idx); | |
980 | ||
b8caac2b | 981 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
982 | } |
983 | ||
984 | ret = verify_pack_index(new_pack); | |
985 | if (!ret) { | |
986 | close_pack_index(new_pack); | |
987 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
988 | } | |
989 | free(tmp_idx); | |
990 | if (ret) | |
991 | return -1; | |
992 | ||
993 | add_pack: | |
b8caac2b TRC |
994 | new_pack->next = *packs_head; |
995 | *packs_head = new_pack; | |
996 | return 0; | |
997 | } | |
998 | ||
999 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1000 | { | |
1001 | int ret = 0, i = 0; | |
1002 | char *url, *data; | |
1003 | struct strbuf buf = STRBUF_INIT; | |
1004 | unsigned char sha1[20]; | |
1005 | ||
1006 | end_url_with_slash(&buf, base_url); | |
1007 | strbuf_addstr(&buf, "objects/info/packs"); | |
1008 | url = strbuf_detach(&buf, NULL); | |
1009 | ||
1010 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
1011 | if (ret != HTTP_OK) | |
1012 | goto cleanup; | |
1013 | ||
1014 | data = buf.buf; | |
1015 | while (i < buf.len) { | |
1016 | switch (data[i]) { | |
1017 | case 'P': | |
1018 | i++; | |
1019 | if (i + 52 <= buf.len && | |
1020 | !prefixcmp(data + i, " pack-") && | |
1021 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1022 | get_sha1_hex(data + i + 6, sha1); | |
1023 | fetch_and_setup_pack_index(packs_head, sha1, | |
1024 | base_url); | |
1025 | i += 51; | |
1026 | break; | |
1027 | } | |
1028 | default: | |
1029 | while (i < buf.len && data[i] != '\n') | |
1030 | i++; | |
1031 | } | |
1032 | i++; | |
1033 | } | |
1034 | ||
1035 | cleanup: | |
1036 | free(url); | |
1037 | return ret; | |
1038 | } | |
2264dfa5 TRC |
1039 | |
1040 | void release_http_pack_request(struct http_pack_request *preq) | |
1041 | { | |
1042 | if (preq->packfile != NULL) { | |
1043 | fclose(preq->packfile); | |
1044 | preq->packfile = NULL; | |
1045 | preq->slot->local = NULL; | |
1046 | } | |
1047 | if (preq->range_header != NULL) { | |
1048 | curl_slist_free_all(preq->range_header); | |
1049 | preq->range_header = NULL; | |
1050 | } | |
1051 | preq->slot = NULL; | |
1052 | free(preq->url); | |
1053 | } | |
1054 | ||
1055 | int finish_http_pack_request(struct http_pack_request *preq) | |
1056 | { | |
2264dfa5 | 1057 | struct packed_git **lst; |
021ab6f0 | 1058 | struct packed_git *p = preq->target; |
fe72d420 SP |
1059 | char *tmp_idx; |
1060 | struct child_process ip; | |
1061 | const char *ip_argv[8]; | |
2264dfa5 | 1062 | |
fe72d420 | 1063 | close_pack_index(p); |
2264dfa5 | 1064 | |
3065274c SP |
1065 | fclose(preq->packfile); |
1066 | preq->packfile = NULL; | |
1067 | preq->slot->local = NULL; | |
2264dfa5 TRC |
1068 | |
1069 | lst = preq->lst; | |
021ab6f0 | 1070 | while (*lst != p) |
2264dfa5 TRC |
1071 | lst = &((*lst)->next); |
1072 | *lst = (*lst)->next; | |
1073 | ||
fe72d420 SP |
1074 | tmp_idx = xstrdup(preq->tmpfile); |
1075 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1076 | ".idx.temp"); | |
1077 | ||
1078 | ip_argv[0] = "index-pack"; | |
1079 | ip_argv[1] = "-o"; | |
1080 | ip_argv[2] = tmp_idx; | |
1081 | ip_argv[3] = preq->tmpfile; | |
1082 | ip_argv[4] = NULL; | |
1083 | ||
1084 | memset(&ip, 0, sizeof(ip)); | |
1085 | ip.argv = ip_argv; | |
1086 | ip.git_cmd = 1; | |
1087 | ip.no_stdin = 1; | |
1088 | ip.no_stdout = 1; | |
1089 | ||
1090 | if (run_command(&ip)) { | |
1091 | unlink(preq->tmpfile); | |
1092 | unlink(tmp_idx); | |
1093 | free(tmp_idx); | |
2264dfa5 | 1094 | return -1; |
fe72d420 SP |
1095 | } |
1096 | ||
1097 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1098 | |
fe72d420 SP |
1099 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1100 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1101 | free(tmp_idx); | |
2264dfa5 | 1102 | return -1; |
fe72d420 | 1103 | } |
2264dfa5 | 1104 | |
fe72d420 SP |
1105 | install_packed_git(p); |
1106 | free(tmp_idx); | |
2264dfa5 TRC |
1107 | return 0; |
1108 | } | |
1109 | ||
1110 | struct http_pack_request *new_http_pack_request( | |
1111 | struct packed_git *target, const char *base_url) | |
1112 | { | |
2264dfa5 TRC |
1113 | long prev_posn = 0; |
1114 | char range[RANGE_HEADER_SIZE]; | |
1115 | struct strbuf buf = STRBUF_INIT; | |
1116 | struct http_pack_request *preq; | |
1117 | ||
1118 | preq = xmalloc(sizeof(*preq)); | |
1119 | preq->target = target; | |
1120 | preq->range_header = NULL; | |
1121 | ||
1122 | end_url_with_slash(&buf, base_url); | |
1123 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1124 | sha1_to_hex(target->sha1)); | |
bb99190e | 1125 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1126 | |
90d05713 TRC |
1127 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1128 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1129 | preq->packfile = fopen(preq->tmpfile, "a"); |
1130 | if (!preq->packfile) { | |
1131 | error("Unable to open local file %s for pack", | |
1132 | preq->tmpfile); | |
1133 | goto abort; | |
1134 | } | |
1135 | ||
1136 | preq->slot = get_active_slot(); | |
1137 | preq->slot->local = preq->packfile; | |
1138 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); | |
1139 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1140 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1141 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1142 | no_pragma_header); | |
1143 | ||
1144 | /* | |
1145 | * If there is data present from a previous transfer attempt, | |
1146 | * resume where it left off | |
1147 | */ | |
1148 | prev_posn = ftell(preq->packfile); | |
1149 | if (prev_posn>0) { | |
1150 | if (http_is_verbose) | |
1151 | fprintf(stderr, | |
1152 | "Resuming fetch of pack %s at byte %ld\n", | |
1153 | sha1_to_hex(target->sha1), prev_posn); | |
1154 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1155 | preq->range_header = curl_slist_append(NULL, range); | |
1156 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1157 | preq->range_header); | |
1158 | } | |
1159 | ||
1160 | return preq; | |
1161 | ||
1162 | abort: | |
bb99190e | 1163 | free(preq->url); |
5ae9ebfd | 1164 | free(preq); |
2264dfa5 TRC |
1165 | return NULL; |
1166 | } | |
5424bc55 TRC |
1167 | |
1168 | /* Helpers for fetching objects (loose) */ | |
1169 | static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb, | |
1170 | void *data) | |
1171 | { | |
1172 | unsigned char expn[4096]; | |
1173 | size_t size = eltsize * nmemb; | |
1174 | int posn = 0; | |
1175 | struct http_object_request *freq = | |
1176 | (struct http_object_request *)data; | |
1177 | do { | |
1178 | ssize_t retval = xwrite(freq->localfile, | |
1179 | (char *) ptr + posn, size - posn); | |
1180 | if (retval < 0) | |
1181 | return posn; | |
1182 | posn += retval; | |
1183 | } while (posn < size); | |
1184 | ||
1185 | freq->stream.avail_in = size; | |
1186 | freq->stream.next_in = ptr; | |
1187 | do { | |
1188 | freq->stream.next_out = expn; | |
1189 | freq->stream.avail_out = sizeof(expn); | |
1190 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1191 | git_SHA1_Update(&freq->c, expn, | |
1192 | sizeof(expn) - freq->stream.avail_out); | |
1193 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
1194 | data_received++; | |
1195 | return size; | |
1196 | } | |
1197 | ||
1198 | struct http_object_request *new_http_object_request(const char *base_url, | |
1199 | unsigned char *sha1) | |
1200 | { | |
1201 | char *hex = sha1_to_hex(sha1); | |
1202 | char *filename; | |
1203 | char prevfile[PATH_MAX]; | |
5424bc55 TRC |
1204 | int prevlocal; |
1205 | unsigned char prev_buf[PREV_BUF_SIZE]; | |
1206 | ssize_t prev_read = 0; | |
1207 | long prev_posn = 0; | |
1208 | char range[RANGE_HEADER_SIZE]; | |
1209 | struct curl_slist *range_header = NULL; | |
1210 | struct http_object_request *freq; | |
1211 | ||
1212 | freq = xmalloc(sizeof(*freq)); | |
1213 | hashcpy(freq->sha1, sha1); | |
1214 | freq->localfile = -1; | |
1215 | ||
1216 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1217 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1218 | "%s.temp", filename); | |
1219 | ||
1220 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1221 | unlink_or_warn(prevfile); | |
1222 | rename(freq->tmpfile, prevfile); | |
1223 | unlink_or_warn(freq->tmpfile); | |
1224 | ||
1225 | if (freq->localfile != -1) | |
1226 | error("fd leakage in start: %d", freq->localfile); | |
1227 | freq->localfile = open(freq->tmpfile, | |
1228 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1229 | /* | |
1230 | * This could have failed due to the "lazy directory creation"; | |
1231 | * try to mkdir the last path component. | |
1232 | */ | |
1233 | if (freq->localfile < 0 && errno == ENOENT) { | |
1234 | char *dir = strrchr(freq->tmpfile, '/'); | |
1235 | if (dir) { | |
1236 | *dir = 0; | |
1237 | mkdir(freq->tmpfile, 0777); | |
1238 | *dir = '/'; | |
1239 | } | |
1240 | freq->localfile = open(freq->tmpfile, | |
1241 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1242 | } | |
1243 | ||
1244 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1245 | error("Couldn't create temporary file %s: %s", |
1246 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1247 | goto abort; |
1248 | } | |
1249 | ||
1250 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1251 | ||
1252 | git_inflate_init(&freq->stream); | |
1253 | ||
1254 | git_SHA1_Init(&freq->c); | |
1255 | ||
bb99190e | 1256 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1257 | |
1258 | /* | |
1259 | * If a previous temp file is present, process what was already | |
1260 | * fetched. | |
1261 | */ | |
1262 | prevlocal = open(prevfile, O_RDONLY); | |
1263 | if (prevlocal != -1) { | |
1264 | do { | |
1265 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1266 | if (prev_read>0) { | |
1267 | if (fwrite_sha1_file(prev_buf, | |
1268 | 1, | |
1269 | prev_read, | |
1270 | freq) == prev_read) { | |
1271 | prev_posn += prev_read; | |
1272 | } else { | |
1273 | prev_read = -1; | |
1274 | } | |
1275 | } | |
1276 | } while (prev_read > 0); | |
1277 | close(prevlocal); | |
1278 | } | |
1279 | unlink_or_warn(prevfile); | |
1280 | ||
1281 | /* | |
1282 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1283 | * file; also rewind to the beginning of the local file. | |
1284 | */ | |
1285 | if (prev_read == -1) { | |
1286 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1287 | git_inflate_init(&freq->stream); | |
1288 | git_SHA1_Init(&freq->c); | |
1289 | if (prev_posn>0) { | |
1290 | prev_posn = 0; | |
1291 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1292 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1293 | error("Couldn't truncate temporary file %s: %s", |
1294 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1295 | goto abort; |
1296 | } | |
5424bc55 TRC |
1297 | } |
1298 | } | |
1299 | ||
1300 | freq->slot = get_active_slot(); | |
1301 | ||
1302 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1303 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1304 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1305 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1306 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1307 | ||
1308 | /* | |
1309 | * If we have successfully processed data from a previous fetch | |
1310 | * attempt, only fetch the data we don't already have. | |
1311 | */ | |
1312 | if (prev_posn>0) { | |
1313 | if (http_is_verbose) | |
1314 | fprintf(stderr, | |
1315 | "Resuming fetch of object %s at byte %ld\n", | |
1316 | hex, prev_posn); | |
1317 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1318 | range_header = curl_slist_append(range_header, range); | |
1319 | curl_easy_setopt(freq->slot->curl, | |
1320 | CURLOPT_HTTPHEADER, range_header); | |
1321 | } | |
1322 | ||
1323 | return freq; | |
1324 | ||
5424bc55 TRC |
1325 | abort: |
1326 | free(filename); | |
bb99190e | 1327 | free(freq->url); |
5424bc55 TRC |
1328 | free(freq); |
1329 | return NULL; | |
1330 | } | |
1331 | ||
1332 | void process_http_object_request(struct http_object_request *freq) | |
1333 | { | |
1334 | if (freq->slot == NULL) | |
1335 | return; | |
1336 | freq->curl_result = freq->slot->curl_result; | |
1337 | freq->http_code = freq->slot->http_code; | |
1338 | freq->slot = NULL; | |
1339 | } | |
1340 | ||
1341 | int finish_http_object_request(struct http_object_request *freq) | |
1342 | { | |
1343 | struct stat st; | |
1344 | ||
1345 | close(freq->localfile); | |
1346 | freq->localfile = -1; | |
1347 | ||
1348 | process_http_object_request(freq); | |
1349 | ||
1350 | if (freq->http_code == 416) { | |
bd757c18 | 1351 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1352 | } else if (freq->curl_result != CURLE_OK) { |
1353 | if (stat(freq->tmpfile, &st) == 0) | |
1354 | if (st.st_size == 0) | |
1355 | unlink_or_warn(freq->tmpfile); | |
1356 | return -1; | |
1357 | } | |
1358 | ||
1359 | git_inflate_end(&freq->stream); | |
1360 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1361 | if (freq->zret != Z_STREAM_END) { | |
1362 | unlink_or_warn(freq->tmpfile); | |
1363 | return -1; | |
1364 | } | |
1365 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1366 | unlink_or_warn(freq->tmpfile); | |
1367 | return -1; | |
1368 | } | |
1369 | freq->rename = | |
0da8b2e7 | 1370 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1371 | |
1372 | return freq->rename; | |
1373 | } | |
1374 | ||
1375 | void abort_http_object_request(struct http_object_request *freq) | |
1376 | { | |
1377 | unlink_or_warn(freq->tmpfile); | |
1378 | ||
1379 | release_http_object_request(freq); | |
1380 | } | |
1381 | ||
1382 | void release_http_object_request(struct http_object_request *freq) | |
1383 | { | |
1384 | if (freq->localfile != -1) { | |
1385 | close(freq->localfile); | |
1386 | freq->localfile = -1; | |
1387 | } | |
1388 | if (freq->url != NULL) { | |
1389 | free(freq->url); | |
1390 | freq->url = NULL; | |
1391 | } | |
4b9fa0e3 TRC |
1392 | if (freq->slot != NULL) { |
1393 | freq->slot->callback_func = NULL; | |
1394 | freq->slot->callback_data = NULL; | |
1395 | release_active_slot(freq->slot); | |
1396 | freq->slot = NULL; | |
1397 | } | |
5424bc55 | 1398 | } |