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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 | 6 | |
4251ccbd | 7 | int active_requests; |
e9176745 | 8 | int http_is_verbose; |
de1a2fdd | 9 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 10 | |
b8ac9230 MS |
11 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
12 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
13 | #endif | |
14 | ||
ad75ebe5 TRC |
15 | static int min_curl_sessions = 1; |
16 | static int curl_session_count; | |
29508e1e | 17 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
18 | static int max_requests = -1; |
19 | static CURLM *curlm; | |
29508e1e NH |
20 | #endif |
21 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 22 | static CURL *curl_default; |
29508e1e | 23 | #endif |
5424bc55 TRC |
24 | |
25 | #define PREV_BUF_SIZE 4096 | |
26 | #define RANGE_HEADER_SIZE 30 | |
27 | ||
29508e1e NH |
28 | char curl_errorstr[CURL_ERROR_SIZE]; |
29 | ||
cc3530e8 | 30 | static int curl_ssl_verify = -1; |
4251ccbd | 31 | static const char *ssl_cert; |
ef52aafa | 32 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 33 | static const char *ssl_key; |
29508e1e NH |
34 | #endif |
35 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 36 | static const char *ssl_capath; |
29508e1e | 37 | #endif |
4251ccbd | 38 | static const char *ssl_cainfo; |
cc3530e8 MH |
39 | static long curl_low_speed_limit = -1; |
40 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
41 | static int curl_ftp_no_epsv; |
42 | static const char *curl_http_proxy; | |
bcfb95dd | 43 | static const char *curl_cookie_file; |
070b4dd5 | 44 | static char *user_name, *user_pass, *description; |
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 | |
a04ff3ec | 63 | size_t fread_buffer(char *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 | ||
a04ff3ec | 95 | size_t fwrite_buffer(char *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 | return size; |
102 | } | |
103 | ||
a04ff3ec | 104 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 105 | { |
29508e1e NH |
106 | return eltsize * nmemb; |
107 | } | |
108 | ||
29508e1e NH |
109 | #ifdef USE_CURL_MULTI |
110 | static void process_curl_messages(void) | |
111 | { | |
112 | int num_messages; | |
113 | struct active_request_slot *slot; | |
114 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
115 | ||
116 | while (curl_message != NULL) { | |
117 | if (curl_message->msg == CURLMSG_DONE) { | |
118 | int curl_result = curl_message->data.result; | |
119 | slot = active_queue_head; | |
120 | while (slot != NULL && | |
121 | slot->curl != curl_message->easy_handle) | |
122 | slot = slot->next; | |
123 | if (slot != NULL) { | |
124 | curl_multi_remove_handle(curlm, slot->curl); | |
125 | slot->curl_result = curl_result; | |
126 | finish_active_slot(slot); | |
127 | } else { | |
128 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
129 | } | |
130 | } else { | |
131 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
132 | (int)curl_message->msg); | |
133 | } | |
134 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
135 | } | |
136 | } | |
137 | #endif | |
138 | ||
070b4dd5 MG |
139 | static char *git_getpass_with_description(const char *what, const char *desc) |
140 | { | |
141 | struct strbuf prompt = STRBUF_INIT; | |
142 | char *r; | |
143 | ||
144 | if (desc) | |
145 | strbuf_addf(&prompt, "%s for '%s': ", what, desc); | |
146 | else | |
147 | strbuf_addf(&prompt, "%s: ", what); | |
148 | /* | |
149 | * NEEDSWORK: for usernames, we should do something less magical that | |
150 | * actually echoes the characters. However, we need to read from | |
151 | * /dev/tty and not stdio, which is not portable (but getpass will do | |
152 | * it for us). http.c uses the same workaround. | |
153 | */ | |
154 | r = git_getpass(prompt.buf); | |
155 | ||
156 | strbuf_release(&prompt); | |
157 | return xstrdup(r); | |
158 | } | |
159 | ||
ef90d6d4 | 160 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
161 | { |
162 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 163 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
164 | return 0; |
165 | } | |
7059cd99 JH |
166 | if (!strcmp("http.sslcert", var)) |
167 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 168 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
169 | if (!strcmp("http.sslkey", var)) |
170 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
171 | #endif |
172 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
173 | if (!strcmp("http.sslcapath", var)) |
174 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 175 | #endif |
7059cd99 JH |
176 | if (!strcmp("http.sslcainfo", var)) |
177 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 ML |
178 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
179 | if (git_config_bool(var, value)) | |
180 | ssl_cert_password_required = 1; | |
181 | return 0; | |
182 | } | |
ad75ebe5 TRC |
183 | if (!strcmp("http.minsessions", var)) { |
184 | min_curl_sessions = git_config_int(var, value); | |
185 | #ifndef USE_CURL_MULTI | |
186 | if (min_curl_sessions > 1) | |
187 | min_curl_sessions = 1; | |
188 | #endif | |
189 | return 0; | |
190 | } | |
a6080a0a | 191 | #ifdef USE_CURL_MULTI |
29508e1e | 192 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 193 | max_requests = git_config_int(var, value); |
29508e1e NH |
194 | return 0; |
195 | } | |
196 | #endif | |
29508e1e | 197 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 198 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
199 | return 0; |
200 | } | |
201 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 202 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
203 | return 0; |
204 | } | |
205 | ||
3ea099d4 SK |
206 | if (!strcmp("http.noepsv", var)) { |
207 | curl_ftp_no_epsv = git_config_bool(var, value); | |
208 | return 0; | |
209 | } | |
7059cd99 JH |
210 | if (!strcmp("http.proxy", var)) |
211 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 212 | |
bcfb95dd DB |
213 | if (!strcmp("http.cookiefile", var)) |
214 | return git_config_string(&curl_cookie_file, var, value); | |
215 | ||
de1a2fdd SP |
216 | if (!strcmp("http.postbuffer", var)) { |
217 | http_post_buffer = git_config_int(var, value); | |
218 | if (http_post_buffer < LARGE_PACKET_MAX) | |
219 | http_post_buffer = LARGE_PACKET_MAX; | |
220 | return 0; | |
221 | } | |
222 | ||
b1d1058c SO |
223 | if (!strcmp("http.useragent", var)) |
224 | return git_config_string(&user_agent, var, value); | |
225 | ||
29508e1e | 226 | /* Fall back on the default ones */ |
ef90d6d4 | 227 | return git_default_config(var, value, cb); |
29508e1e NH |
228 | } |
229 | ||
c33976cb JH |
230 | static void init_curl_http_auth(CURL *result) |
231 | { | |
750d9305 | 232 | if (user_name) { |
c33976cb JH |
233 | struct strbuf up = STRBUF_INIT; |
234 | if (!user_pass) | |
070b4dd5 | 235 | user_pass = xstrdup(git_getpass_with_description("Password", description)); |
c33976cb JH |
236 | strbuf_addf(&up, "%s:%s", user_name, user_pass); |
237 | curl_easy_setopt(result, CURLOPT_USERPWD, | |
238 | strbuf_detach(&up, NULL)); | |
239 | } | |
240 | } | |
241 | ||
30dd9163 ML |
242 | static int has_cert_password(void) |
243 | { | |
244 | if (ssl_cert_password != NULL) | |
245 | return 1; | |
246 | if (ssl_cert == NULL || ssl_cert_password_required != 1) | |
247 | return 0; | |
248 | /* Only prompt the user once. */ | |
249 | ssl_cert_password_required = -1; | |
070b4dd5 | 250 | ssl_cert_password = git_getpass_with_description("Certificate Password", description); |
30dd9163 ML |
251 | if (ssl_cert_password != NULL) { |
252 | ssl_cert_password = xstrdup(ssl_cert_password); | |
253 | return 1; | |
254 | } else | |
255 | return 0; | |
256 | } | |
257 | ||
4251ccbd | 258 | static CURL *get_curl_handle(void) |
11979b98 | 259 | { |
4251ccbd | 260 | CURL *result = curl_easy_init(); |
11979b98 | 261 | |
a5ccc597 JH |
262 | if (!curl_ssl_verify) { |
263 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
264 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
265 | } else { | |
266 | /* Verify authenticity of the peer's certificate */ | |
267 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
268 | /* The name in the cert must match whom we tried to connect */ | |
269 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
270 | } | |
271 | ||
11979b98 JH |
272 | #if LIBCURL_VERSION_NUM >= 0x070907 |
273 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
274 | #endif | |
b8ac9230 | 275 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 276 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 277 | #endif |
11979b98 JH |
278 | |
279 | if (ssl_cert != NULL) | |
280 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 ML |
281 | if (has_cert_password()) |
282 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, ssl_cert_password); | |
ef52aafa | 283 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
284 | if (ssl_key != NULL) |
285 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
286 | #endif | |
287 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
288 | if (ssl_capath != NULL) | |
289 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
290 | #endif | |
291 | if (ssl_cainfo != NULL) | |
292 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
293 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
294 | ||
295 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
296 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
297 | curl_low_speed_limit); | |
298 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
299 | curl_low_speed_time); | |
300 | } | |
301 | ||
302 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
303 | #if LIBCURL_VERSION_NUM >= 0x071301 |
304 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
305 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
306 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
307 | #endif | |
11979b98 | 308 | |
7982d74e MW |
309 | if (getenv("GIT_CURL_VERBOSE")) |
310 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
311 | ||
b1d1058c SO |
312 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
313 | user_agent ? user_agent : GIT_HTTP_USER_AGENT); | |
20fc9bc5 | 314 | |
3ea099d4 SK |
315 | if (curl_ftp_no_epsv) |
316 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
317 | ||
9c5665aa SV |
318 | if (curl_http_proxy) |
319 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); | |
320 | ||
11979b98 JH |
321 | return result; |
322 | } | |
323 | ||
c33976cb JH |
324 | static void http_auth_init(const char *url) |
325 | { | |
070b4dd5 | 326 | const char *at, *colon, *cp, *slash, *host; |
c33976cb JH |
327 | |
328 | cp = strstr(url, "://"); | |
329 | if (!cp) | |
330 | return; | |
331 | ||
332 | /* | |
333 | * Ok, the URL looks like "proto://something". Which one? | |
334 | * "proto://<user>:<pass>@<host>/...", | |
335 | * "proto://<user>@<host>/...", or just | |
336 | * "proto://<host>/..."? | |
337 | */ | |
338 | cp += 3; | |
339 | at = strchr(cp, '@'); | |
340 | colon = strchr(cp, ':'); | |
341 | slash = strchrnul(cp, '/'); | |
070b4dd5 MG |
342 | if (!at || slash <= at) { |
343 | /* No credentials, but we may have to ask for some later */ | |
344 | host = cp; | |
345 | } | |
346 | else if (!colon || at <= colon) { | |
c33976cb | 347 | /* Only username */ |
66c84485 | 348 | user_name = url_decode_mem(cp, at - cp); |
c33976cb | 349 | user_pass = NULL; |
070b4dd5 | 350 | host = at + 1; |
c33976cb | 351 | } else { |
66c84485 JK |
352 | user_name = url_decode_mem(cp, colon - cp); |
353 | user_pass = url_decode_mem(colon + 1, at - (colon + 1)); | |
070b4dd5 | 354 | host = at + 1; |
c33976cb | 355 | } |
070b4dd5 MG |
356 | |
357 | description = url_decode_mem(host, slash - host); | |
c33976cb JH |
358 | } |
359 | ||
7059cd99 JH |
360 | static void set_from_env(const char **var, const char *envname) |
361 | { | |
362 | const char *val = getenv(envname); | |
363 | if (val) | |
364 | *var = val; | |
365 | } | |
366 | ||
deba4937 | 367 | void http_init(struct remote *remote, const char *url) |
29508e1e NH |
368 | { |
369 | char *low_speed_limit; | |
370 | char *low_speed_time; | |
371 | ||
e9176745 TRC |
372 | http_is_verbose = 0; |
373 | ||
7059cd99 JH |
374 | git_config(http_options, NULL); |
375 | ||
29508e1e NH |
376 | curl_global_init(CURL_GLOBAL_ALL); |
377 | ||
9fc6440d MH |
378 | if (remote && remote->http_proxy) |
379 | curl_http_proxy = xstrdup(remote->http_proxy); | |
380 | ||
29508e1e | 381 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 382 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
383 | |
384 | #ifdef USE_CURL_MULTI | |
385 | { | |
386 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
387 | if (http_max_requests != NULL) | |
388 | max_requests = atoi(http_max_requests); | |
389 | } | |
390 | ||
391 | curlm = curl_multi_init(); | |
392 | if (curlm == NULL) { | |
393 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
394 | exit(1); | |
395 | } | |
396 | #endif | |
397 | ||
398 | if (getenv("GIT_SSL_NO_VERIFY")) | |
399 | curl_ssl_verify = 0; | |
400 | ||
7059cd99 | 401 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 402 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 403 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
404 | #endif |
405 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 406 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 407 | #endif |
7059cd99 | 408 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 409 | |
b1d1058c SO |
410 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
411 | ||
29508e1e NH |
412 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
413 | if (low_speed_limit != NULL) | |
414 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
415 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
416 | if (low_speed_time != NULL) | |
417 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
418 | ||
29508e1e NH |
419 | if (curl_ssl_verify == -1) |
420 | curl_ssl_verify = 1; | |
421 | ||
ad75ebe5 | 422 | curl_session_count = 0; |
29508e1e NH |
423 | #ifdef USE_CURL_MULTI |
424 | if (max_requests < 1) | |
425 | max_requests = DEFAULT_MAX_REQUESTS; | |
426 | #endif | |
427 | ||
3ea099d4 SK |
428 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
429 | curl_ftp_no_epsv = 1; | |
430 | ||
deba4937 JK |
431 | if (url) { |
432 | http_auth_init(url); | |
754ae192 ML |
433 | if (!ssl_cert_password_required && |
434 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
deba4937 | 435 | !prefixcmp(url, "https://")) |
30dd9163 ML |
436 | ssl_cert_password_required = 1; |
437 | } | |
c33976cb | 438 | |
29508e1e NH |
439 | #ifndef NO_CURL_EASY_DUPHANDLE |
440 | curl_default = get_curl_handle(); | |
441 | #endif | |
442 | } | |
443 | ||
444 | void http_cleanup(void) | |
445 | { | |
446 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
447 | |
448 | while (slot != NULL) { | |
3278cd0a | 449 | struct active_request_slot *next = slot->next; |
f23d1f76 | 450 | if (slot->curl != NULL) { |
29508e1e | 451 | #ifdef USE_CURL_MULTI |
f23d1f76 | 452 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 453 | #endif |
29508e1e | 454 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 455 | } |
3278cd0a SP |
456 | free(slot); |
457 | slot = next; | |
29508e1e | 458 | } |
3278cd0a | 459 | active_queue_head = NULL; |
29508e1e NH |
460 | |
461 | #ifndef NO_CURL_EASY_DUPHANDLE | |
462 | curl_easy_cleanup(curl_default); | |
463 | #endif | |
464 | ||
465 | #ifdef USE_CURL_MULTI | |
466 | curl_multi_cleanup(curlm); | |
467 | #endif | |
468 | curl_global_cleanup(); | |
b3ca4e4e NH |
469 | |
470 | curl_slist_free_all(pragma_header); | |
3278cd0a | 471 | pragma_header = NULL; |
9fc6440d | 472 | |
e9176745 TRC |
473 | curl_slist_free_all(no_pragma_header); |
474 | no_pragma_header = NULL; | |
475 | ||
9fc6440d | 476 | if (curl_http_proxy) { |
e4a80ecf | 477 | free((void *)curl_http_proxy); |
9fc6440d MH |
478 | curl_http_proxy = NULL; |
479 | } | |
30dd9163 ML |
480 | |
481 | if (ssl_cert_password != NULL) { | |
482 | memset(ssl_cert_password, 0, strlen(ssl_cert_password)); | |
483 | free(ssl_cert_password); | |
484 | ssl_cert_password = NULL; | |
485 | } | |
486 | ssl_cert_password_required = 0; | |
29508e1e NH |
487 | } |
488 | ||
29508e1e NH |
489 | struct active_request_slot *get_active_slot(void) |
490 | { | |
491 | struct active_request_slot *slot = active_queue_head; | |
492 | struct active_request_slot *newslot; | |
493 | ||
494 | #ifdef USE_CURL_MULTI | |
495 | int num_transfers; | |
496 | ||
497 | /* Wait for a slot to open up if the queue is full */ | |
498 | while (active_requests >= max_requests) { | |
499 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 500 | if (num_transfers < active_requests) |
29508e1e | 501 | process_curl_messages(); |
29508e1e NH |
502 | } |
503 | #endif | |
504 | ||
4251ccbd | 505 | while (slot != NULL && slot->in_use) |
29508e1e | 506 | slot = slot->next; |
4251ccbd | 507 | |
29508e1e NH |
508 | if (slot == NULL) { |
509 | newslot = xmalloc(sizeof(*newslot)); | |
510 | newslot->curl = NULL; | |
511 | newslot->in_use = 0; | |
512 | newslot->next = NULL; | |
513 | ||
514 | slot = active_queue_head; | |
515 | if (slot == NULL) { | |
516 | active_queue_head = newslot; | |
517 | } else { | |
4251ccbd | 518 | while (slot->next != NULL) |
29508e1e | 519 | slot = slot->next; |
29508e1e NH |
520 | slot->next = newslot; |
521 | } | |
522 | slot = newslot; | |
523 | } | |
524 | ||
525 | if (slot->curl == NULL) { | |
526 | #ifdef NO_CURL_EASY_DUPHANDLE | |
527 | slot->curl = get_curl_handle(); | |
528 | #else | |
529 | slot->curl = curl_easy_duphandle(curl_default); | |
530 | #endif | |
ad75ebe5 | 531 | curl_session_count++; |
29508e1e NH |
532 | } |
533 | ||
534 | active_requests++; | |
535 | slot->in_use = 1; | |
c8568e13 | 536 | slot->results = NULL; |
baa7b67d | 537 | slot->finished = NULL; |
29508e1e NH |
538 | slot->callback_data = NULL; |
539 | slot->callback_func = NULL; | |
bcfb95dd | 540 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
29508e1e | 541 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 542 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
543 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
544 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
545 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 546 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
547 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
548 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
29508e1e NH |
549 | |
550 | return slot; | |
551 | } | |
552 | ||
553 | int start_active_slot(struct active_request_slot *slot) | |
554 | { | |
555 | #ifdef USE_CURL_MULTI | |
556 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 557 | int num_transfers; |
29508e1e NH |
558 | |
559 | if (curlm_result != CURLM_OK && | |
560 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
561 | active_requests--; | |
562 | slot->in_use = 0; | |
563 | return 0; | |
564 | } | |
45c17412 DB |
565 | |
566 | /* | |
567 | * We know there must be something to do, since we just added | |
568 | * something. | |
569 | */ | |
570 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
571 | #endif |
572 | return 1; | |
573 | } | |
574 | ||
575 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
576 | struct fill_chain { |
577 | void *data; | |
578 | int (*fill)(void *); | |
579 | struct fill_chain *next; | |
580 | }; | |
581 | ||
4251ccbd | 582 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
583 | |
584 | void add_fill_function(void *data, int (*fill)(void *)) | |
585 | { | |
e8eec71d | 586 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
587 | struct fill_chain **linkp = &fill_cfg; |
588 | new->data = data; | |
589 | new->fill = fill; | |
590 | new->next = NULL; | |
591 | while (*linkp) | |
592 | linkp = &(*linkp)->next; | |
593 | *linkp = new; | |
594 | } | |
595 | ||
45c17412 DB |
596 | void fill_active_slots(void) |
597 | { | |
598 | struct active_request_slot *slot = active_queue_head; | |
599 | ||
fc57b6aa DB |
600 | while (active_requests < max_requests) { |
601 | struct fill_chain *fill; | |
602 | for (fill = fill_cfg; fill; fill = fill->next) | |
603 | if (fill->fill(fill->data)) | |
604 | break; | |
605 | ||
606 | if (!fill) | |
45c17412 | 607 | break; |
fc57b6aa | 608 | } |
45c17412 DB |
609 | |
610 | while (slot != NULL) { | |
ad75ebe5 TRC |
611 | if (!slot->in_use && slot->curl != NULL |
612 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
613 | curl_easy_cleanup(slot->curl); |
614 | slot->curl = NULL; | |
ad75ebe5 | 615 | curl_session_count--; |
45c17412 DB |
616 | } |
617 | slot = slot->next; | |
618 | } | |
619 | } | |
620 | ||
29508e1e NH |
621 | void step_active_slots(void) |
622 | { | |
623 | int num_transfers; | |
624 | CURLMcode curlm_result; | |
625 | ||
626 | do { | |
627 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
628 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
629 | if (num_transfers < active_requests) { | |
630 | process_curl_messages(); | |
631 | fill_active_slots(); | |
632 | } | |
633 | } | |
634 | #endif | |
635 | ||
636 | void run_active_slot(struct active_request_slot *slot) | |
637 | { | |
638 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
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 | step_active_slots(); |
649 | ||
df26c471 | 650 | if (slot->in_use) { |
eb56c821 MF |
651 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
652 | long curl_timeout; | |
653 | curl_multi_timeout(curlm, &curl_timeout); | |
654 | if (curl_timeout == 0) { | |
655 | continue; | |
656 | } else if (curl_timeout == -1) { | |
657 | select_timeout.tv_sec = 0; | |
658 | select_timeout.tv_usec = 50000; | |
659 | } else { | |
660 | select_timeout.tv_sec = curl_timeout / 1000; | |
661 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
662 | } | |
663 | #else | |
664 | select_timeout.tv_sec = 0; | |
665 | select_timeout.tv_usec = 50000; | |
666 | #endif | |
29508e1e | 667 | |
6f9dd67f | 668 | max_fd = -1; |
29508e1e NH |
669 | FD_ZERO(&readfds); |
670 | FD_ZERO(&writefds); | |
671 | FD_ZERO(&excfds); | |
6f9dd67f | 672 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 673 | |
6f9dd67f | 674 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
675 | } |
676 | } | |
677 | #else | |
678 | while (slot->in_use) { | |
679 | slot->curl_result = curl_easy_perform(slot->curl); | |
680 | finish_active_slot(slot); | |
681 | } | |
682 | #endif | |
683 | } | |
684 | ||
53f31389 | 685 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 686 | { |
028c2976 MH |
687 | active_requests--; |
688 | slot->in_use = 0; | |
53f31389 MW |
689 | } |
690 | ||
83e41e2e | 691 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
692 | { |
693 | closedown_active_slot(slot); | |
ad75ebe5 | 694 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 695 | #ifdef USE_CURL_MULTI |
53f31389 | 696 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 697 | #endif |
53f31389 MW |
698 | curl_easy_cleanup(slot->curl); |
699 | slot->curl = NULL; | |
ad75ebe5 | 700 | curl_session_count--; |
53f31389 | 701 | } |
b3ca4e4e | 702 | #ifdef USE_CURL_MULTI |
53f31389 | 703 | fill_active_slots(); |
b3ca4e4e | 704 | #endif |
53f31389 MW |
705 | } |
706 | ||
de1a2fdd | 707 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
708 | { |
709 | closedown_active_slot(slot); | |
028c2976 | 710 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 711 | |
baa7b67d NH |
712 | if (slot->finished != NULL) |
713 | (*slot->finished) = 1; | |
714 | ||
c8568e13 NH |
715 | /* Store slot results so they can be read after the slot is reused */ |
716 | if (slot->results != NULL) { | |
717 | slot->results->curl_result = slot->curl_result; | |
718 | slot->results->http_code = slot->http_code; | |
719 | } | |
720 | ||
028c2976 | 721 | /* Run callback if appropriate */ |
4251ccbd | 722 | if (slot->callback_func != NULL) |
028c2976 | 723 | slot->callback_func(slot->callback_data); |
29508e1e NH |
724 | } |
725 | ||
726 | void finish_all_active_slots(void) | |
727 | { | |
728 | struct active_request_slot *slot = active_queue_head; | |
729 | ||
730 | while (slot != NULL) | |
731 | if (slot->in_use) { | |
732 | run_active_slot(slot); | |
733 | slot = active_queue_head; | |
734 | } else { | |
735 | slot = slot->next; | |
736 | } | |
737 | } | |
d7e92806 | 738 | |
5ace994f | 739 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
740 | static inline int needs_quote(int ch) |
741 | { | |
742 | if (((ch >= 'A') && (ch <= 'Z')) | |
743 | || ((ch >= 'a') && (ch <= 'z')) | |
744 | || ((ch >= '0') && (ch <= '9')) | |
745 | || (ch == '/') | |
746 | || (ch == '-') | |
747 | || (ch == '.')) | |
748 | return 0; | |
749 | return 1; | |
750 | } | |
751 | ||
d7e92806 MH |
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 | } | |
e929cd20 MH |
819 | } else |
820 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
821 | fwrite_buffer); | |
822 | } | |
823 | ||
824 | strbuf_addstr(&buf, "Pragma:"); | |
825 | if (options & HTTP_NO_CACHE) | |
826 | strbuf_addstr(&buf, " no-cache"); | |
827 | ||
828 | headers = curl_slist_append(headers, buf.buf); | |
829 | ||
830 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
831 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
832 | ||
833 | if (start_active_slot(slot)) { | |
834 | run_active_slot(slot); | |
835 | if (results.curl_result == CURLE_OK) | |
836 | ret = HTTP_OK; | |
837 | else if (missing_target(&results)) | |
838 | ret = HTTP_MISSING_TARGET; | |
42653c09 | 839 | else if (results.http_code == 401) { |
986bbc08 | 840 | if (user_name && user_pass) { |
42653c09 SC |
841 | ret = HTTP_NOAUTH; |
842 | } else { | |
843 | /* | |
844 | * git_getpass is needed here because its very likely stdin/stdout are | |
845 | * pipes to our parent process. So we instead need to use /dev/tty, | |
846 | * but that is non-portable. Using git_getpass() can at least be stubbed | |
847 | * on other platforms with a different implementation if/when necessary. | |
848 | */ | |
986bbc08 SN |
849 | if (!user_name) |
850 | user_name = xstrdup(git_getpass_with_description("Username", description)); | |
42653c09 SC |
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 | ||
e929cd20 MH |
866 | curl_slist_free_all(headers); |
867 | strbuf_release(&buf); | |
868 | ||
869 | return ret; | |
870 | } | |
871 | ||
8d677edc JK |
872 | static int http_request_reauth(const char *url, void *result, int target, |
873 | int options) | |
874 | { | |
875 | int ret = http_request(url, result, target, options); | |
876 | if (ret != HTTP_REAUTH) | |
877 | return ret; | |
878 | return http_request(url, result, target, options); | |
879 | } | |
880 | ||
e929cd20 MH |
881 | int http_get_strbuf(const char *url, struct strbuf *result, int options) |
882 | { | |
8d677edc | 883 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
884 | } |
885 | ||
83e41e2e JH |
886 | /* |
887 | * Downloads an url and stores the result in the given file. | |
888 | * | |
889 | * If a previous interrupted download is detected (i.e. a previous temporary | |
890 | * file is still around) the download is resumed. | |
891 | */ | |
892 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
893 | { |
894 | int ret; | |
895 | struct strbuf tmpfile = STRBUF_INIT; | |
896 | FILE *result; | |
897 | ||
898 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
899 | result = fopen(tmpfile.buf, "a"); | |
900 | if (! result) { | |
901 | error("Unable to open local file %s", tmpfile.buf); | |
902 | ret = HTTP_ERROR; | |
903 | goto cleanup; | |
904 | } | |
905 | ||
8d677edc | 906 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
907 | fclose(result); |
908 | ||
909 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
910 | ret = HTTP_ERROR; | |
911 | cleanup: | |
912 | strbuf_release(&tmpfile); | |
913 | return ret; | |
914 | } | |
915 | ||
916 | int http_error(const char *url, int ret) | |
917 | { | |
918 | /* http_request has already handled HTTP_START_FAILED. */ | |
919 | if (ret != HTTP_START_FAILED) | |
8abc5082 | 920 | error("%s while accessing %s", curl_errorstr, url); |
e929cd20 MH |
921 | |
922 | return ret; | |
923 | } | |
924 | ||
c13b2633 | 925 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
926 | { |
927 | char *url; | |
928 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 929 | int ret = -1; |
d7e92806 | 930 | |
c13b2633 | 931 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
932 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
933 | strbuf_rtrim(&buffer); | |
934 | if (buffer.len == 40) | |
935 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
936 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
937 | ref->symref = xstrdup(buffer.buf + 5); | |
938 | ret = 0; | |
d7e92806 | 939 | } |
d7e92806 MH |
940 | } |
941 | ||
942 | strbuf_release(&buffer); | |
943 | free(url); | |
944 | return ret; | |
945 | } | |
b8caac2b TRC |
946 | |
947 | /* Helpers for fetching packs */ | |
750ef425 | 948 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 949 | { |
750ef425 | 950 | char *url, *tmp; |
b8caac2b | 951 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 952 | |
b8caac2b | 953 | if (http_is_verbose) |
162eb5f8 | 954 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
955 | |
956 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 957 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
958 | url = strbuf_detach(&buf, NULL); |
959 | ||
750ef425 SP |
960 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
961 | tmp = strbuf_detach(&buf, NULL); | |
962 | ||
963 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
964 | error("Unable to get pack index %s\n", url); | |
965 | free(tmp); | |
966 | tmp = NULL; | |
967 | } | |
b8caac2b | 968 | |
b8caac2b | 969 | free(url); |
750ef425 | 970 | return tmp; |
b8caac2b TRC |
971 | } |
972 | ||
973 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
974 | unsigned char *sha1, const char *base_url) | |
975 | { | |
976 | struct packed_git *new_pack; | |
750ef425 SP |
977 | char *tmp_idx = NULL; |
978 | int ret; | |
b8caac2b | 979 | |
750ef425 SP |
980 | if (has_pack_index(sha1)) { |
981 | new_pack = parse_pack_index(sha1, NULL); | |
982 | if (!new_pack) | |
983 | return -1; /* parse_pack_index() already issued error message */ | |
984 | goto add_pack; | |
985 | } | |
986 | ||
987 | tmp_idx = fetch_pack_index(sha1, base_url); | |
988 | if (!tmp_idx) | |
b8caac2b TRC |
989 | return -1; |
990 | ||
750ef425 SP |
991 | new_pack = parse_pack_index(sha1, tmp_idx); |
992 | if (!new_pack) { | |
993 | unlink(tmp_idx); | |
994 | free(tmp_idx); | |
995 | ||
b8caac2b | 996 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
997 | } |
998 | ||
999 | ret = verify_pack_index(new_pack); | |
1000 | if (!ret) { | |
1001 | close_pack_index(new_pack); | |
1002 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
1003 | } | |
1004 | free(tmp_idx); | |
1005 | if (ret) | |
1006 | return -1; | |
1007 | ||
1008 | add_pack: | |
b8caac2b TRC |
1009 | new_pack->next = *packs_head; |
1010 | *packs_head = new_pack; | |
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1015 | { | |
1016 | int ret = 0, i = 0; | |
1017 | char *url, *data; | |
1018 | struct strbuf buf = STRBUF_INIT; | |
1019 | unsigned char sha1[20]; | |
1020 | ||
1021 | end_url_with_slash(&buf, base_url); | |
1022 | strbuf_addstr(&buf, "objects/info/packs"); | |
1023 | url = strbuf_detach(&buf, NULL); | |
1024 | ||
1025 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
1026 | if (ret != HTTP_OK) | |
1027 | goto cleanup; | |
1028 | ||
1029 | data = buf.buf; | |
1030 | while (i < buf.len) { | |
1031 | switch (data[i]) { | |
1032 | case 'P': | |
1033 | i++; | |
1034 | if (i + 52 <= buf.len && | |
1035 | !prefixcmp(data + i, " pack-") && | |
1036 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1037 | get_sha1_hex(data + i + 6, sha1); | |
1038 | fetch_and_setup_pack_index(packs_head, sha1, | |
1039 | base_url); | |
1040 | i += 51; | |
1041 | break; | |
1042 | } | |
1043 | default: | |
1044 | while (i < buf.len && data[i] != '\n') | |
1045 | i++; | |
1046 | } | |
1047 | i++; | |
1048 | } | |
1049 | ||
1050 | cleanup: | |
1051 | free(url); | |
1052 | return ret; | |
1053 | } | |
2264dfa5 TRC |
1054 | |
1055 | void release_http_pack_request(struct http_pack_request *preq) | |
1056 | { | |
1057 | if (preq->packfile != NULL) { | |
1058 | fclose(preq->packfile); | |
1059 | preq->packfile = NULL; | |
2264dfa5 TRC |
1060 | } |
1061 | if (preq->range_header != NULL) { | |
1062 | curl_slist_free_all(preq->range_header); | |
1063 | preq->range_header = NULL; | |
1064 | } | |
1065 | preq->slot = NULL; | |
1066 | free(preq->url); | |
1067 | } | |
1068 | ||
1069 | int finish_http_pack_request(struct http_pack_request *preq) | |
1070 | { | |
2264dfa5 | 1071 | struct packed_git **lst; |
021ab6f0 | 1072 | struct packed_git *p = preq->target; |
fe72d420 SP |
1073 | char *tmp_idx; |
1074 | struct child_process ip; | |
1075 | const char *ip_argv[8]; | |
2264dfa5 | 1076 | |
fe72d420 | 1077 | close_pack_index(p); |
2264dfa5 | 1078 | |
3065274c SP |
1079 | fclose(preq->packfile); |
1080 | preq->packfile = NULL; | |
2264dfa5 TRC |
1081 | |
1082 | lst = preq->lst; | |
021ab6f0 | 1083 | while (*lst != p) |
2264dfa5 TRC |
1084 | lst = &((*lst)->next); |
1085 | *lst = (*lst)->next; | |
1086 | ||
fe72d420 SP |
1087 | tmp_idx = xstrdup(preq->tmpfile); |
1088 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1089 | ".idx.temp"); | |
1090 | ||
1091 | ip_argv[0] = "index-pack"; | |
1092 | ip_argv[1] = "-o"; | |
1093 | ip_argv[2] = tmp_idx; | |
1094 | ip_argv[3] = preq->tmpfile; | |
1095 | ip_argv[4] = NULL; | |
1096 | ||
1097 | memset(&ip, 0, sizeof(ip)); | |
1098 | ip.argv = ip_argv; | |
1099 | ip.git_cmd = 1; | |
1100 | ip.no_stdin = 1; | |
1101 | ip.no_stdout = 1; | |
1102 | ||
1103 | if (run_command(&ip)) { | |
1104 | unlink(preq->tmpfile); | |
1105 | unlink(tmp_idx); | |
1106 | free(tmp_idx); | |
2264dfa5 | 1107 | return -1; |
fe72d420 SP |
1108 | } |
1109 | ||
1110 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1111 | |
fe72d420 SP |
1112 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1113 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1114 | free(tmp_idx); | |
2264dfa5 | 1115 | return -1; |
fe72d420 | 1116 | } |
2264dfa5 | 1117 | |
fe72d420 SP |
1118 | install_packed_git(p); |
1119 | free(tmp_idx); | |
2264dfa5 TRC |
1120 | return 0; |
1121 | } | |
1122 | ||
1123 | struct http_pack_request *new_http_pack_request( | |
1124 | struct packed_git *target, const char *base_url) | |
1125 | { | |
2264dfa5 TRC |
1126 | long prev_posn = 0; |
1127 | char range[RANGE_HEADER_SIZE]; | |
1128 | struct strbuf buf = STRBUF_INIT; | |
1129 | struct http_pack_request *preq; | |
1130 | ||
ec99c9a8 | 1131 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1132 | preq->target = target; |
2264dfa5 TRC |
1133 | |
1134 | end_url_with_slash(&buf, base_url); | |
1135 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1136 | sha1_to_hex(target->sha1)); | |
bb99190e | 1137 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1138 | |
90d05713 TRC |
1139 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1140 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1141 | preq->packfile = fopen(preq->tmpfile, "a"); |
1142 | if (!preq->packfile) { | |
1143 | error("Unable to open local file %s for pack", | |
1144 | preq->tmpfile); | |
1145 | goto abort; | |
1146 | } | |
1147 | ||
1148 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
1149 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
1150 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1151 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1152 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1153 | no_pragma_header); | |
1154 | ||
1155 | /* | |
1156 | * If there is data present from a previous transfer attempt, | |
1157 | * resume where it left off | |
1158 | */ | |
1159 | prev_posn = ftell(preq->packfile); | |
1160 | if (prev_posn>0) { | |
1161 | if (http_is_verbose) | |
1162 | fprintf(stderr, | |
1163 | "Resuming fetch of pack %s at byte %ld\n", | |
1164 | sha1_to_hex(target->sha1), prev_posn); | |
1165 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1166 | preq->range_header = curl_slist_append(NULL, range); | |
1167 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1168 | preq->range_header); | |
1169 | } | |
1170 | ||
1171 | return preq; | |
1172 | ||
1173 | abort: | |
bb99190e | 1174 | free(preq->url); |
5ae9ebfd | 1175 | free(preq); |
2264dfa5 TRC |
1176 | return NULL; |
1177 | } | |
5424bc55 TRC |
1178 | |
1179 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1180 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1181 | void *data) |
1182 | { | |
1183 | unsigned char expn[4096]; | |
1184 | size_t size = eltsize * nmemb; | |
1185 | int posn = 0; | |
1186 | struct http_object_request *freq = | |
1187 | (struct http_object_request *)data; | |
1188 | do { | |
1189 | ssize_t retval = xwrite(freq->localfile, | |
1190 | (char *) ptr + posn, size - posn); | |
1191 | if (retval < 0) | |
1192 | return posn; | |
1193 | posn += retval; | |
1194 | } while (posn < size); | |
1195 | ||
1196 | freq->stream.avail_in = size; | |
a04ff3ec | 1197 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1198 | do { |
1199 | freq->stream.next_out = expn; | |
1200 | freq->stream.avail_out = sizeof(expn); | |
1201 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1202 | git_SHA1_Update(&freq->c, expn, | |
1203 | sizeof(expn) - freq->stream.avail_out); | |
1204 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
5424bc55 TRC |
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 | } |