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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 | |
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 | data_received++; |
102 | return size; | |
103 | } | |
104 | ||
a04ff3ec | 105 | size_t fwrite_null(char *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 | ||
a15d069a EW |
236 | /* curl 7.25.0 has CURLOPT_TCP_KEEPALIVE, too, but we support older curl */ |
237 | static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type) | |
238 | { | |
239 | int ka = 1; | |
240 | int rc; | |
241 | socklen_t len = (socklen_t)sizeof(ka); | |
242 | ||
243 | if (type != CURLSOCKTYPE_IPCXN) | |
244 | return 0; | |
245 | ||
246 | rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len); | |
247 | if (rc < 0) | |
248 | warning("unable to set SO_KEEPALIVE on socket %s", | |
249 | strerror(errno)); | |
250 | ||
251 | return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */ | |
252 | } | |
253 | ||
4251ccbd | 254 | static CURL *get_curl_handle(void) |
11979b98 | 255 | { |
4251ccbd | 256 | CURL *result = curl_easy_init(); |
11979b98 | 257 | |
a5ccc597 JH |
258 | if (!curl_ssl_verify) { |
259 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
260 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
261 | } else { | |
262 | /* Verify authenticity of the peer's certificate */ | |
263 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
264 | /* The name in the cert must match whom we tried to connect */ | |
265 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
266 | } | |
267 | ||
11979b98 JH |
268 | #if LIBCURL_VERSION_NUM >= 0x070907 |
269 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
270 | #endif | |
b8ac9230 | 271 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 272 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 273 | #endif |
11979b98 | 274 | |
c33976cb JH |
275 | init_curl_http_auth(result); |
276 | ||
11979b98 JH |
277 | if (ssl_cert != NULL) |
278 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 ML |
279 | if (has_cert_password()) |
280 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, ssl_cert_password); | |
ef52aafa | 281 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
282 | if (ssl_key != NULL) |
283 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
284 | #endif | |
285 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
286 | if (ssl_capath != NULL) | |
287 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
288 | #endif | |
289 | if (ssl_cainfo != NULL) | |
290 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
291 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
292 | ||
293 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
294 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
295 | curl_low_speed_limit); | |
296 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
297 | curl_low_speed_time); | |
298 | } | |
299 | ||
300 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
301 | #if LIBCURL_VERSION_NUM >= 0x071301 |
302 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
303 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
304 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
305 | #endif | |
11979b98 | 306 | |
7982d74e MW |
307 | if (getenv("GIT_CURL_VERBOSE")) |
308 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
309 | ||
b1d1058c SO |
310 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
311 | user_agent ? user_agent : GIT_HTTP_USER_AGENT); | |
20fc9bc5 | 312 | |
3ea099d4 SK |
313 | if (curl_ftp_no_epsv) |
314 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
315 | ||
9c5665aa SV |
316 | if (curl_http_proxy) |
317 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); | |
318 | ||
a15d069a EW |
319 | #if LIBCURL_VERSION_NUM >= 0x071000 |
320 | curl_easy_setopt(result, CURLOPT_SOCKOPTFUNCTION, sockopt_callback); | |
321 | #endif | |
322 | ||
11979b98 JH |
323 | return result; |
324 | } | |
325 | ||
c33976cb JH |
326 | static void http_auth_init(const char *url) |
327 | { | |
f39f72d8 | 328 | char *at, *colon, *cp, *slash, *decoded; |
c33976cb JH |
329 | int len; |
330 | ||
331 | cp = strstr(url, "://"); | |
332 | if (!cp) | |
333 | return; | |
334 | ||
335 | /* | |
336 | * Ok, the URL looks like "proto://something". Which one? | |
337 | * "proto://<user>:<pass>@<host>/...", | |
338 | * "proto://<user>@<host>/...", or just | |
339 | * "proto://<host>/..."? | |
340 | */ | |
341 | cp += 3; | |
342 | at = strchr(cp, '@'); | |
343 | colon = strchr(cp, ':'); | |
344 | slash = strchrnul(cp, '/'); | |
345 | if (!at || slash <= at) | |
346 | return; /* No credentials */ | |
347 | if (!colon || at <= colon) { | |
348 | /* Only username */ | |
349 | len = at - cp; | |
350 | user_name = xmalloc(len + 1); | |
351 | memcpy(user_name, cp, len); | |
352 | user_name[len] = '\0'; | |
f39f72d8 GC |
353 | decoded = url_decode(user_name); |
354 | free(user_name); | |
355 | user_name = decoded; | |
c33976cb JH |
356 | user_pass = NULL; |
357 | } else { | |
358 | len = colon - cp; | |
359 | user_name = xmalloc(len + 1); | |
360 | memcpy(user_name, cp, len); | |
361 | user_name[len] = '\0'; | |
f39f72d8 GC |
362 | decoded = url_decode(user_name); |
363 | free(user_name); | |
364 | user_name = decoded; | |
c33976cb JH |
365 | len = at - (colon + 1); |
366 | user_pass = xmalloc(len + 1); | |
367 | memcpy(user_pass, colon + 1, len); | |
368 | user_pass[len] = '\0'; | |
f39f72d8 GC |
369 | decoded = url_decode(user_pass); |
370 | free(user_pass); | |
371 | user_pass = decoded; | |
c33976cb JH |
372 | } |
373 | } | |
374 | ||
7059cd99 JH |
375 | static void set_from_env(const char **var, const char *envname) |
376 | { | |
377 | const char *val = getenv(envname); | |
378 | if (val) | |
379 | *var = val; | |
380 | } | |
381 | ||
9fc6440d | 382 | void http_init(struct remote *remote) |
29508e1e NH |
383 | { |
384 | char *low_speed_limit; | |
385 | char *low_speed_time; | |
386 | ||
e9176745 TRC |
387 | http_is_verbose = 0; |
388 | ||
7059cd99 JH |
389 | git_config(http_options, NULL); |
390 | ||
29508e1e NH |
391 | curl_global_init(CURL_GLOBAL_ALL); |
392 | ||
9fc6440d MH |
393 | if (remote && remote->http_proxy) |
394 | curl_http_proxy = xstrdup(remote->http_proxy); | |
395 | ||
29508e1e | 396 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 397 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
398 | |
399 | #ifdef USE_CURL_MULTI | |
400 | { | |
401 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
402 | if (http_max_requests != NULL) | |
403 | max_requests = atoi(http_max_requests); | |
404 | } | |
405 | ||
406 | curlm = curl_multi_init(); | |
407 | if (curlm == NULL) { | |
408 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
409 | exit(1); | |
410 | } | |
411 | #endif | |
412 | ||
413 | if (getenv("GIT_SSL_NO_VERIFY")) | |
414 | curl_ssl_verify = 0; | |
415 | ||
7059cd99 | 416 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 417 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 418 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
419 | #endif |
420 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 421 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 422 | #endif |
7059cd99 | 423 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 424 | |
b1d1058c SO |
425 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
426 | ||
29508e1e NH |
427 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
428 | if (low_speed_limit != NULL) | |
429 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
430 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
431 | if (low_speed_time != NULL) | |
432 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
433 | ||
29508e1e NH |
434 | if (curl_ssl_verify == -1) |
435 | curl_ssl_verify = 1; | |
436 | ||
ad75ebe5 | 437 | curl_session_count = 0; |
29508e1e NH |
438 | #ifdef USE_CURL_MULTI |
439 | if (max_requests < 1) | |
440 | max_requests = DEFAULT_MAX_REQUESTS; | |
441 | #endif | |
442 | ||
3ea099d4 SK |
443 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
444 | curl_ftp_no_epsv = 1; | |
445 | ||
30dd9163 | 446 | if (remote && remote->url && remote->url[0]) { |
c33976cb | 447 | http_auth_init(remote->url[0]); |
754ae192 ML |
448 | if (!ssl_cert_password_required && |
449 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
450 | !prefixcmp(remote->url[0], "https://")) | |
30dd9163 ML |
451 | ssl_cert_password_required = 1; |
452 | } | |
c33976cb | 453 | |
29508e1e NH |
454 | #ifndef NO_CURL_EASY_DUPHANDLE |
455 | curl_default = get_curl_handle(); | |
456 | #endif | |
457 | } | |
458 | ||
459 | void http_cleanup(void) | |
460 | { | |
461 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
462 | |
463 | while (slot != NULL) { | |
3278cd0a | 464 | struct active_request_slot *next = slot->next; |
f23d1f76 | 465 | if (slot->curl != NULL) { |
29508e1e | 466 | #ifdef USE_CURL_MULTI |
f23d1f76 | 467 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 468 | #endif |
29508e1e | 469 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 470 | } |
3278cd0a SP |
471 | free(slot); |
472 | slot = next; | |
29508e1e | 473 | } |
3278cd0a | 474 | active_queue_head = NULL; |
29508e1e NH |
475 | |
476 | #ifndef NO_CURL_EASY_DUPHANDLE | |
477 | curl_easy_cleanup(curl_default); | |
478 | #endif | |
479 | ||
480 | #ifdef USE_CURL_MULTI | |
481 | curl_multi_cleanup(curlm); | |
482 | #endif | |
483 | curl_global_cleanup(); | |
b3ca4e4e NH |
484 | |
485 | curl_slist_free_all(pragma_header); | |
3278cd0a | 486 | pragma_header = NULL; |
9fc6440d | 487 | |
e9176745 TRC |
488 | curl_slist_free_all(no_pragma_header); |
489 | no_pragma_header = NULL; | |
490 | ||
9fc6440d | 491 | if (curl_http_proxy) { |
e4a80ecf | 492 | free((void *)curl_http_proxy); |
9fc6440d MH |
493 | curl_http_proxy = NULL; |
494 | } | |
30dd9163 ML |
495 | |
496 | if (ssl_cert_password != NULL) { | |
497 | memset(ssl_cert_password, 0, strlen(ssl_cert_password)); | |
498 | free(ssl_cert_password); | |
499 | ssl_cert_password = NULL; | |
500 | } | |
501 | ssl_cert_password_required = 0; | |
29508e1e NH |
502 | } |
503 | ||
29508e1e NH |
504 | struct active_request_slot *get_active_slot(void) |
505 | { | |
506 | struct active_request_slot *slot = active_queue_head; | |
507 | struct active_request_slot *newslot; | |
508 | ||
509 | #ifdef USE_CURL_MULTI | |
510 | int num_transfers; | |
511 | ||
512 | /* Wait for a slot to open up if the queue is full */ | |
513 | while (active_requests >= max_requests) { | |
514 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 515 | if (num_transfers < active_requests) |
29508e1e | 516 | process_curl_messages(); |
29508e1e NH |
517 | } |
518 | #endif | |
519 | ||
4251ccbd | 520 | while (slot != NULL && slot->in_use) |
29508e1e | 521 | slot = slot->next; |
4251ccbd | 522 | |
29508e1e NH |
523 | if (slot == NULL) { |
524 | newslot = xmalloc(sizeof(*newslot)); | |
525 | newslot->curl = NULL; | |
526 | newslot->in_use = 0; | |
527 | newslot->next = NULL; | |
528 | ||
529 | slot = active_queue_head; | |
530 | if (slot == NULL) { | |
531 | active_queue_head = newslot; | |
532 | } else { | |
4251ccbd | 533 | while (slot->next != NULL) |
29508e1e | 534 | slot = slot->next; |
29508e1e NH |
535 | slot->next = newslot; |
536 | } | |
537 | slot = newslot; | |
538 | } | |
539 | ||
540 | if (slot->curl == NULL) { | |
541 | #ifdef NO_CURL_EASY_DUPHANDLE | |
542 | slot->curl = get_curl_handle(); | |
543 | #else | |
544 | slot->curl = curl_easy_duphandle(curl_default); | |
545 | #endif | |
ad75ebe5 | 546 | curl_session_count++; |
29508e1e NH |
547 | } |
548 | ||
549 | active_requests++; | |
550 | slot->in_use = 1; | |
551 | slot->local = NULL; | |
c8568e13 | 552 | slot->results = NULL; |
baa7b67d | 553 | slot->finished = NULL; |
29508e1e NH |
554 | slot->callback_data = NULL; |
555 | slot->callback_func = NULL; | |
556 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); | |
29508e1e | 557 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
558 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
559 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
560 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 561 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
562 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
563 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
29508e1e NH |
564 | |
565 | return slot; | |
566 | } | |
567 | ||
568 | int start_active_slot(struct active_request_slot *slot) | |
569 | { | |
570 | #ifdef USE_CURL_MULTI | |
571 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 572 | int num_transfers; |
29508e1e NH |
573 | |
574 | if (curlm_result != CURLM_OK && | |
575 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
576 | active_requests--; | |
577 | slot->in_use = 0; | |
578 | return 0; | |
579 | } | |
45c17412 DB |
580 | |
581 | /* | |
582 | * We know there must be something to do, since we just added | |
583 | * something. | |
584 | */ | |
585 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
586 | #endif |
587 | return 1; | |
588 | } | |
589 | ||
590 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
591 | struct fill_chain { |
592 | void *data; | |
593 | int (*fill)(void *); | |
594 | struct fill_chain *next; | |
595 | }; | |
596 | ||
4251ccbd | 597 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
598 | |
599 | void add_fill_function(void *data, int (*fill)(void *)) | |
600 | { | |
e8eec71d | 601 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
602 | struct fill_chain **linkp = &fill_cfg; |
603 | new->data = data; | |
604 | new->fill = fill; | |
605 | new->next = NULL; | |
606 | while (*linkp) | |
607 | linkp = &(*linkp)->next; | |
608 | *linkp = new; | |
609 | } | |
610 | ||
45c17412 DB |
611 | void fill_active_slots(void) |
612 | { | |
613 | struct active_request_slot *slot = active_queue_head; | |
614 | ||
fc57b6aa DB |
615 | while (active_requests < max_requests) { |
616 | struct fill_chain *fill; | |
617 | for (fill = fill_cfg; fill; fill = fill->next) | |
618 | if (fill->fill(fill->data)) | |
619 | break; | |
620 | ||
621 | if (!fill) | |
45c17412 | 622 | break; |
fc57b6aa | 623 | } |
45c17412 DB |
624 | |
625 | while (slot != NULL) { | |
ad75ebe5 TRC |
626 | if (!slot->in_use && slot->curl != NULL |
627 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
628 | curl_easy_cleanup(slot->curl); |
629 | slot->curl = NULL; | |
ad75ebe5 | 630 | curl_session_count--; |
45c17412 DB |
631 | } |
632 | slot = slot->next; | |
633 | } | |
634 | } | |
635 | ||
29508e1e NH |
636 | void step_active_slots(void) |
637 | { | |
638 | int num_transfers; | |
639 | CURLMcode curlm_result; | |
640 | ||
641 | do { | |
642 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
643 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
644 | if (num_transfers < active_requests) { | |
645 | process_curl_messages(); | |
646 | fill_active_slots(); | |
647 | } | |
648 | } | |
649 | #endif | |
650 | ||
651 | void run_active_slot(struct active_request_slot *slot) | |
652 | { | |
653 | #ifdef USE_CURL_MULTI | |
654 | long last_pos = 0; | |
655 | long current_pos; | |
656 | fd_set readfds; | |
657 | fd_set writefds; | |
658 | fd_set excfds; | |
659 | int max_fd; | |
660 | struct timeval select_timeout; | |
baa7b67d | 661 | int finished = 0; |
29508e1e | 662 | |
baa7b67d NH |
663 | slot->finished = &finished; |
664 | while (!finished) { | |
29508e1e NH |
665 | data_received = 0; |
666 | step_active_slots(); | |
667 | ||
668 | if (!data_received && slot->local != NULL) { | |
669 | current_pos = ftell(slot->local); | |
670 | if (current_pos > last_pos) | |
671 | data_received++; | |
672 | last_pos = current_pos; | |
673 | } | |
674 | ||
675 | if (slot->in_use && !data_received) { | |
676 | max_fd = 0; | |
677 | FD_ZERO(&readfds); | |
678 | FD_ZERO(&writefds); | |
679 | FD_ZERO(&excfds); | |
680 | select_timeout.tv_sec = 0; | |
681 | select_timeout.tv_usec = 50000; | |
682 | select(max_fd, &readfds, &writefds, | |
683 | &excfds, &select_timeout); | |
684 | } | |
685 | } | |
686 | #else | |
687 | while (slot->in_use) { | |
688 | slot->curl_result = curl_easy_perform(slot->curl); | |
689 | finish_active_slot(slot); | |
690 | } | |
691 | #endif | |
692 | } | |
693 | ||
53f31389 | 694 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 695 | { |
028c2976 MH |
696 | active_requests--; |
697 | slot->in_use = 0; | |
53f31389 MW |
698 | } |
699 | ||
83e41e2e | 700 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
701 | { |
702 | closedown_active_slot(slot); | |
ad75ebe5 | 703 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 704 | #ifdef USE_CURL_MULTI |
53f31389 | 705 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 706 | #endif |
53f31389 MW |
707 | curl_easy_cleanup(slot->curl); |
708 | slot->curl = NULL; | |
ad75ebe5 | 709 | curl_session_count--; |
53f31389 | 710 | } |
b3ca4e4e | 711 | #ifdef USE_CURL_MULTI |
53f31389 | 712 | fill_active_slots(); |
b3ca4e4e | 713 | #endif |
53f31389 MW |
714 | } |
715 | ||
de1a2fdd | 716 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
717 | { |
718 | closedown_active_slot(slot); | |
028c2976 | 719 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 720 | |
baa7b67d NH |
721 | if (slot->finished != NULL) |
722 | (*slot->finished) = 1; | |
723 | ||
c8568e13 NH |
724 | /* Store slot results so they can be read after the slot is reused */ |
725 | if (slot->results != NULL) { | |
726 | slot->results->curl_result = slot->curl_result; | |
727 | slot->results->http_code = slot->http_code; | |
728 | } | |
729 | ||
028c2976 | 730 | /* Run callback if appropriate */ |
4251ccbd | 731 | if (slot->callback_func != NULL) |
028c2976 | 732 | slot->callback_func(slot->callback_data); |
29508e1e NH |
733 | } |
734 | ||
735 | void finish_all_active_slots(void) | |
736 | { | |
737 | struct active_request_slot *slot = active_queue_head; | |
738 | ||
739 | while (slot != NULL) | |
740 | if (slot->in_use) { | |
741 | run_active_slot(slot); | |
742 | slot = active_queue_head; | |
743 | } else { | |
744 | slot = slot->next; | |
745 | } | |
746 | } | |
d7e92806 | 747 | |
5ace994f | 748 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
749 | static inline int needs_quote(int ch) |
750 | { | |
751 | if (((ch >= 'A') && (ch <= 'Z')) | |
752 | || ((ch >= 'a') && (ch <= 'z')) | |
753 | || ((ch >= '0') && (ch <= '9')) | |
754 | || (ch == '/') | |
755 | || (ch == '-') | |
756 | || (ch == '.')) | |
757 | return 0; | |
758 | return 1; | |
759 | } | |
760 | ||
761 | static inline int hex(int v) | |
762 | { | |
4251ccbd JH |
763 | if (v < 10) |
764 | return '0' + v; | |
765 | else | |
766 | return 'A' + v - 10; | |
d7e92806 MH |
767 | } |
768 | ||
769 | static char *quote_ref_url(const char *base, const char *ref) | |
770 | { | |
113106e0 | 771 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 772 | const char *cp; |
113106e0 | 773 | int ch; |
d7e92806 | 774 | |
5ace994f | 775 | end_url_with_slash(&buf, base); |
113106e0 TRC |
776 | |
777 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 778 | if (needs_quote(ch)) |
113106e0 | 779 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 780 | else |
113106e0 | 781 | strbuf_addch(&buf, *cp); |
d7e92806 | 782 | |
113106e0 | 783 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
784 | } |
785 | ||
5424bc55 TRC |
786 | void append_remote_object_url(struct strbuf *buf, const char *url, |
787 | const char *hex, | |
788 | int only_two_digit_prefix) | |
789 | { | |
800324c3 TRC |
790 | end_url_with_slash(buf, url); |
791 | ||
792 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
793 | if (!only_two_digit_prefix) |
794 | strbuf_addf(buf, "%s", hex+2); | |
795 | } | |
796 | ||
797 | char *get_remote_object_url(const char *url, const char *hex, | |
798 | int only_two_digit_prefix) | |
799 | { | |
800 | struct strbuf buf = STRBUF_INIT; | |
801 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
802 | return strbuf_detach(&buf, NULL); | |
803 | } | |
804 | ||
e929cd20 MH |
805 | /* http_request() targets */ |
806 | #define HTTP_REQUEST_STRBUF 0 | |
807 | #define HTTP_REQUEST_FILE 1 | |
808 | ||
809 | static int http_request(const char *url, void *result, int target, int options) | |
810 | { | |
811 | struct active_request_slot *slot; | |
812 | struct slot_results results; | |
813 | struct curl_slist *headers = NULL; | |
814 | struct strbuf buf = STRBUF_INIT; | |
815 | int ret; | |
816 | ||
817 | slot = get_active_slot(); | |
818 | slot->results = &results; | |
819 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
820 | ||
821 | if (result == NULL) { | |
822 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
823 | } else { | |
824 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
825 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
826 | ||
827 | if (target == HTTP_REQUEST_FILE) { | |
828 | long posn = ftell(result); | |
829 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
830 | fwrite); | |
831 | if (posn > 0) { | |
832 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
833 | headers = curl_slist_append(headers, buf.buf); | |
834 | strbuf_reset(&buf); | |
835 | } | |
836 | slot->local = result; | |
837 | } else | |
838 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
839 | fwrite_buffer); | |
840 | } | |
841 | ||
842 | strbuf_addstr(&buf, "Pragma:"); | |
843 | if (options & HTTP_NO_CACHE) | |
844 | strbuf_addstr(&buf, " no-cache"); | |
845 | ||
846 | headers = curl_slist_append(headers, buf.buf); | |
847 | ||
848 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
849 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
850 | ||
851 | if (start_active_slot(slot)) { | |
852 | run_active_slot(slot); | |
853 | if (results.curl_result == CURLE_OK) | |
854 | ret = HTTP_OK; | |
855 | else if (missing_target(&results)) | |
856 | ret = HTTP_MISSING_TARGET; | |
42653c09 SC |
857 | else if (results.http_code == 401) { |
858 | if (user_name) { | |
859 | ret = HTTP_NOAUTH; | |
860 | } else { | |
861 | /* | |
862 | * git_getpass is needed here because its very likely stdin/stdout are | |
863 | * pipes to our parent process. So we instead need to use /dev/tty, | |
864 | * but that is non-portable. Using git_getpass() can at least be stubbed | |
865 | * on other platforms with a different implementation if/when necessary. | |
866 | */ | |
867 | user_name = xstrdup(git_getpass("Username: ")); | |
868 | init_curl_http_auth(slot->curl); | |
869 | ret = HTTP_REAUTH; | |
870 | } | |
871 | } else | |
e929cd20 MH |
872 | ret = HTTP_ERROR; |
873 | } else { | |
874 | error("Unable to start HTTP request for %s", url); | |
875 | ret = HTTP_START_FAILED; | |
876 | } | |
877 | ||
878 | slot->local = NULL; | |
879 | curl_slist_free_all(headers); | |
880 | strbuf_release(&buf); | |
881 | ||
882 | return ret; | |
883 | } | |
884 | ||
885 | int http_get_strbuf(const char *url, struct strbuf *result, int options) | |
886 | { | |
42653c09 SC |
887 | int http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); |
888 | if (http_ret == HTTP_REAUTH) { | |
889 | http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options); | |
890 | } | |
891 | return http_ret; | |
e929cd20 MH |
892 | } |
893 | ||
83e41e2e JH |
894 | /* |
895 | * Downloads an url and stores the result in the given file. | |
896 | * | |
897 | * If a previous interrupted download is detected (i.e. a previous temporary | |
898 | * file is still around) the download is resumed. | |
899 | */ | |
900 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
901 | { |
902 | int ret; | |
903 | struct strbuf tmpfile = STRBUF_INIT; | |
904 | FILE *result; | |
905 | ||
906 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
907 | result = fopen(tmpfile.buf, "a"); | |
908 | if (! result) { | |
909 | error("Unable to open local file %s", tmpfile.buf); | |
910 | ret = HTTP_ERROR; | |
911 | goto cleanup; | |
912 | } | |
913 | ||
914 | ret = http_request(url, result, HTTP_REQUEST_FILE, options); | |
915 | fclose(result); | |
916 | ||
917 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
918 | ret = HTTP_ERROR; | |
919 | cleanup: | |
920 | strbuf_release(&tmpfile); | |
921 | return ret; | |
922 | } | |
923 | ||
924 | int http_error(const char *url, int ret) | |
925 | { | |
926 | /* http_request has already handled HTTP_START_FAILED. */ | |
927 | if (ret != HTTP_START_FAILED) | |
928 | error("%s while accessing %s\n", curl_errorstr, url); | |
929 | ||
930 | return ret; | |
931 | } | |
932 | ||
c13b2633 | 933 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
934 | { |
935 | char *url; | |
936 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 937 | int ret = -1; |
d7e92806 | 938 | |
c13b2633 | 939 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
940 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
941 | strbuf_rtrim(&buffer); | |
942 | if (buffer.len == 40) | |
943 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
944 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
945 | ref->symref = xstrdup(buffer.buf + 5); | |
946 | ret = 0; | |
d7e92806 | 947 | } |
d7e92806 MH |
948 | } |
949 | ||
950 | strbuf_release(&buffer); | |
951 | free(url); | |
952 | return ret; | |
953 | } | |
b8caac2b TRC |
954 | |
955 | /* Helpers for fetching packs */ | |
750ef425 | 956 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 957 | { |
750ef425 | 958 | char *url, *tmp; |
b8caac2b | 959 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 960 | |
b8caac2b | 961 | if (http_is_verbose) |
162eb5f8 | 962 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
963 | |
964 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 965 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
966 | url = strbuf_detach(&buf, NULL); |
967 | ||
750ef425 SP |
968 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
969 | tmp = strbuf_detach(&buf, NULL); | |
970 | ||
971 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
972 | error("Unable to get pack index %s\n", url); | |
973 | free(tmp); | |
974 | tmp = NULL; | |
975 | } | |
b8caac2b | 976 | |
b8caac2b | 977 | free(url); |
750ef425 | 978 | return tmp; |
b8caac2b TRC |
979 | } |
980 | ||
981 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
982 | unsigned char *sha1, const char *base_url) | |
983 | { | |
984 | struct packed_git *new_pack; | |
750ef425 SP |
985 | char *tmp_idx = NULL; |
986 | int ret; | |
b8caac2b | 987 | |
750ef425 SP |
988 | if (has_pack_index(sha1)) { |
989 | new_pack = parse_pack_index(sha1, NULL); | |
990 | if (!new_pack) | |
991 | return -1; /* parse_pack_index() already issued error message */ | |
992 | goto add_pack; | |
993 | } | |
994 | ||
995 | tmp_idx = fetch_pack_index(sha1, base_url); | |
996 | if (!tmp_idx) | |
b8caac2b TRC |
997 | return -1; |
998 | ||
750ef425 SP |
999 | new_pack = parse_pack_index(sha1, tmp_idx); |
1000 | if (!new_pack) { | |
1001 | unlink(tmp_idx); | |
1002 | free(tmp_idx); | |
1003 | ||
b8caac2b | 1004 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
1005 | } |
1006 | ||
1007 | ret = verify_pack_index(new_pack); | |
1008 | if (!ret) { | |
1009 | close_pack_index(new_pack); | |
1010 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
1011 | } | |
1012 | free(tmp_idx); | |
1013 | if (ret) | |
1014 | return -1; | |
1015 | ||
1016 | add_pack: | |
b8caac2b TRC |
1017 | new_pack->next = *packs_head; |
1018 | *packs_head = new_pack; | |
1019 | return 0; | |
1020 | } | |
1021 | ||
1022 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1023 | { | |
1024 | int ret = 0, i = 0; | |
1025 | char *url, *data; | |
1026 | struct strbuf buf = STRBUF_INIT; | |
1027 | unsigned char sha1[20]; | |
1028 | ||
1029 | end_url_with_slash(&buf, base_url); | |
1030 | strbuf_addstr(&buf, "objects/info/packs"); | |
1031 | url = strbuf_detach(&buf, NULL); | |
1032 | ||
1033 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
1034 | if (ret != HTTP_OK) | |
1035 | goto cleanup; | |
1036 | ||
1037 | data = buf.buf; | |
1038 | while (i < buf.len) { | |
1039 | switch (data[i]) { | |
1040 | case 'P': | |
1041 | i++; | |
1042 | if (i + 52 <= buf.len && | |
1043 | !prefixcmp(data + i, " pack-") && | |
1044 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1045 | get_sha1_hex(data + i + 6, sha1); | |
1046 | fetch_and_setup_pack_index(packs_head, sha1, | |
1047 | base_url); | |
1048 | i += 51; | |
1049 | break; | |
1050 | } | |
1051 | default: | |
1052 | while (i < buf.len && data[i] != '\n') | |
1053 | i++; | |
1054 | } | |
1055 | i++; | |
1056 | } | |
1057 | ||
1058 | cleanup: | |
1059 | free(url); | |
1060 | return ret; | |
1061 | } | |
2264dfa5 TRC |
1062 | |
1063 | void release_http_pack_request(struct http_pack_request *preq) | |
1064 | { | |
1065 | if (preq->packfile != NULL) { | |
1066 | fclose(preq->packfile); | |
1067 | preq->packfile = NULL; | |
1068 | preq->slot->local = NULL; | |
1069 | } | |
1070 | if (preq->range_header != NULL) { | |
1071 | curl_slist_free_all(preq->range_header); | |
1072 | preq->range_header = NULL; | |
1073 | } | |
1074 | preq->slot = NULL; | |
1075 | free(preq->url); | |
1076 | } | |
1077 | ||
1078 | int finish_http_pack_request(struct http_pack_request *preq) | |
1079 | { | |
2264dfa5 | 1080 | struct packed_git **lst; |
021ab6f0 | 1081 | struct packed_git *p = preq->target; |
fe72d420 SP |
1082 | char *tmp_idx; |
1083 | struct child_process ip; | |
1084 | const char *ip_argv[8]; | |
2264dfa5 | 1085 | |
fe72d420 | 1086 | close_pack_index(p); |
2264dfa5 | 1087 | |
3065274c SP |
1088 | fclose(preq->packfile); |
1089 | preq->packfile = NULL; | |
1090 | preq->slot->local = NULL; | |
2264dfa5 TRC |
1091 | |
1092 | lst = preq->lst; | |
021ab6f0 | 1093 | while (*lst != p) |
2264dfa5 TRC |
1094 | lst = &((*lst)->next); |
1095 | *lst = (*lst)->next; | |
1096 | ||
fe72d420 SP |
1097 | tmp_idx = xstrdup(preq->tmpfile); |
1098 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1099 | ".idx.temp"); | |
1100 | ||
1101 | ip_argv[0] = "index-pack"; | |
1102 | ip_argv[1] = "-o"; | |
1103 | ip_argv[2] = tmp_idx; | |
1104 | ip_argv[3] = preq->tmpfile; | |
1105 | ip_argv[4] = NULL; | |
1106 | ||
1107 | memset(&ip, 0, sizeof(ip)); | |
1108 | ip.argv = ip_argv; | |
1109 | ip.git_cmd = 1; | |
1110 | ip.no_stdin = 1; | |
1111 | ip.no_stdout = 1; | |
1112 | ||
1113 | if (run_command(&ip)) { | |
1114 | unlink(preq->tmpfile); | |
1115 | unlink(tmp_idx); | |
1116 | free(tmp_idx); | |
2264dfa5 | 1117 | return -1; |
fe72d420 SP |
1118 | } |
1119 | ||
1120 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1121 | |
fe72d420 SP |
1122 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1123 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1124 | free(tmp_idx); | |
2264dfa5 | 1125 | return -1; |
fe72d420 | 1126 | } |
2264dfa5 | 1127 | |
fe72d420 SP |
1128 | install_packed_git(p); |
1129 | free(tmp_idx); | |
2264dfa5 TRC |
1130 | return 0; |
1131 | } | |
1132 | ||
1133 | struct http_pack_request *new_http_pack_request( | |
1134 | struct packed_git *target, const char *base_url) | |
1135 | { | |
2264dfa5 TRC |
1136 | long prev_posn = 0; |
1137 | char range[RANGE_HEADER_SIZE]; | |
1138 | struct strbuf buf = STRBUF_INIT; | |
1139 | struct http_pack_request *preq; | |
1140 | ||
1141 | preq = xmalloc(sizeof(*preq)); | |
1142 | preq->target = target; | |
1143 | preq->range_header = NULL; | |
1144 | ||
1145 | end_url_with_slash(&buf, base_url); | |
1146 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1147 | sha1_to_hex(target->sha1)); | |
bb99190e | 1148 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1149 | |
90d05713 TRC |
1150 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1151 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1152 | preq->packfile = fopen(preq->tmpfile, "a"); |
1153 | if (!preq->packfile) { | |
1154 | error("Unable to open local file %s for pack", | |
1155 | preq->tmpfile); | |
1156 | goto abort; | |
1157 | } | |
1158 | ||
1159 | preq->slot = get_active_slot(); | |
1160 | preq->slot->local = preq->packfile; | |
1161 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); | |
1162 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1163 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1164 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1165 | no_pragma_header); | |
1166 | ||
1167 | /* | |
1168 | * If there is data present from a previous transfer attempt, | |
1169 | * resume where it left off | |
1170 | */ | |
1171 | prev_posn = ftell(preq->packfile); | |
1172 | if (prev_posn>0) { | |
1173 | if (http_is_verbose) | |
1174 | fprintf(stderr, | |
1175 | "Resuming fetch of pack %s at byte %ld\n", | |
1176 | sha1_to_hex(target->sha1), prev_posn); | |
1177 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1178 | preq->range_header = curl_slist_append(NULL, range); | |
1179 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1180 | preq->range_header); | |
1181 | } | |
1182 | ||
1183 | return preq; | |
1184 | ||
1185 | abort: | |
bb99190e | 1186 | free(preq->url); |
5ae9ebfd | 1187 | free(preq); |
2264dfa5 TRC |
1188 | return NULL; |
1189 | } | |
5424bc55 TRC |
1190 | |
1191 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1192 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1193 | void *data) |
1194 | { | |
1195 | unsigned char expn[4096]; | |
1196 | size_t size = eltsize * nmemb; | |
1197 | int posn = 0; | |
1198 | struct http_object_request *freq = | |
1199 | (struct http_object_request *)data; | |
1200 | do { | |
1201 | ssize_t retval = xwrite(freq->localfile, | |
1202 | (char *) ptr + posn, size - posn); | |
1203 | if (retval < 0) | |
1204 | return posn; | |
1205 | posn += retval; | |
1206 | } while (posn < size); | |
1207 | ||
1208 | freq->stream.avail_in = size; | |
a04ff3ec | 1209 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1210 | do { |
1211 | freq->stream.next_out = expn; | |
1212 | freq->stream.avail_out = sizeof(expn); | |
1213 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1214 | git_SHA1_Update(&freq->c, expn, | |
1215 | sizeof(expn) - freq->stream.avail_out); | |
1216 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
1217 | data_received++; | |
1218 | return size; | |
1219 | } | |
1220 | ||
1221 | struct http_object_request *new_http_object_request(const char *base_url, | |
1222 | unsigned char *sha1) | |
1223 | { | |
1224 | char *hex = sha1_to_hex(sha1); | |
1225 | char *filename; | |
1226 | char prevfile[PATH_MAX]; | |
5424bc55 | 1227 | int prevlocal; |
a04ff3ec | 1228 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1229 | ssize_t prev_read = 0; |
1230 | long prev_posn = 0; | |
1231 | char range[RANGE_HEADER_SIZE]; | |
1232 | struct curl_slist *range_header = NULL; | |
1233 | struct http_object_request *freq; | |
1234 | ||
1235 | freq = xmalloc(sizeof(*freq)); | |
1236 | hashcpy(freq->sha1, sha1); | |
1237 | freq->localfile = -1; | |
1238 | ||
1239 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1240 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1241 | "%s.temp", filename); | |
1242 | ||
1243 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1244 | unlink_or_warn(prevfile); | |
1245 | rename(freq->tmpfile, prevfile); | |
1246 | unlink_or_warn(freq->tmpfile); | |
1247 | ||
1248 | if (freq->localfile != -1) | |
1249 | error("fd leakage in start: %d", freq->localfile); | |
1250 | freq->localfile = open(freq->tmpfile, | |
1251 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1252 | /* | |
1253 | * This could have failed due to the "lazy directory creation"; | |
1254 | * try to mkdir the last path component. | |
1255 | */ | |
1256 | if (freq->localfile < 0 && errno == ENOENT) { | |
1257 | char *dir = strrchr(freq->tmpfile, '/'); | |
1258 | if (dir) { | |
1259 | *dir = 0; | |
1260 | mkdir(freq->tmpfile, 0777); | |
1261 | *dir = '/'; | |
1262 | } | |
1263 | freq->localfile = open(freq->tmpfile, | |
1264 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1265 | } | |
1266 | ||
1267 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1268 | error("Couldn't create temporary file %s: %s", |
1269 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1270 | goto abort; |
1271 | } | |
1272 | ||
1273 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1274 | ||
1275 | git_inflate_init(&freq->stream); | |
1276 | ||
1277 | git_SHA1_Init(&freq->c); | |
1278 | ||
bb99190e | 1279 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1280 | |
1281 | /* | |
1282 | * If a previous temp file is present, process what was already | |
1283 | * fetched. | |
1284 | */ | |
1285 | prevlocal = open(prevfile, O_RDONLY); | |
1286 | if (prevlocal != -1) { | |
1287 | do { | |
1288 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1289 | if (prev_read>0) { | |
1290 | if (fwrite_sha1_file(prev_buf, | |
1291 | 1, | |
1292 | prev_read, | |
1293 | freq) == prev_read) { | |
1294 | prev_posn += prev_read; | |
1295 | } else { | |
1296 | prev_read = -1; | |
1297 | } | |
1298 | } | |
1299 | } while (prev_read > 0); | |
1300 | close(prevlocal); | |
1301 | } | |
1302 | unlink_or_warn(prevfile); | |
1303 | ||
1304 | /* | |
1305 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1306 | * file; also rewind to the beginning of the local file. | |
1307 | */ | |
1308 | if (prev_read == -1) { | |
1309 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1310 | git_inflate_init(&freq->stream); | |
1311 | git_SHA1_Init(&freq->c); | |
1312 | if (prev_posn>0) { | |
1313 | prev_posn = 0; | |
1314 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1315 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1316 | error("Couldn't truncate temporary file %s: %s", |
1317 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1318 | goto abort; |
1319 | } | |
5424bc55 TRC |
1320 | } |
1321 | } | |
1322 | ||
1323 | freq->slot = get_active_slot(); | |
1324 | ||
1325 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1326 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1327 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1328 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1329 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1330 | ||
1331 | /* | |
1332 | * If we have successfully processed data from a previous fetch | |
1333 | * attempt, only fetch the data we don't already have. | |
1334 | */ | |
1335 | if (prev_posn>0) { | |
1336 | if (http_is_verbose) | |
1337 | fprintf(stderr, | |
1338 | "Resuming fetch of object %s at byte %ld\n", | |
1339 | hex, prev_posn); | |
1340 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1341 | range_header = curl_slist_append(range_header, range); | |
1342 | curl_easy_setopt(freq->slot->curl, | |
1343 | CURLOPT_HTTPHEADER, range_header); | |
1344 | } | |
1345 | ||
1346 | return freq; | |
1347 | ||
5424bc55 TRC |
1348 | abort: |
1349 | free(filename); | |
bb99190e | 1350 | free(freq->url); |
5424bc55 TRC |
1351 | free(freq); |
1352 | return NULL; | |
1353 | } | |
1354 | ||
1355 | void process_http_object_request(struct http_object_request *freq) | |
1356 | { | |
1357 | if (freq->slot == NULL) | |
1358 | return; | |
1359 | freq->curl_result = freq->slot->curl_result; | |
1360 | freq->http_code = freq->slot->http_code; | |
1361 | freq->slot = NULL; | |
1362 | } | |
1363 | ||
1364 | int finish_http_object_request(struct http_object_request *freq) | |
1365 | { | |
1366 | struct stat st; | |
1367 | ||
1368 | close(freq->localfile); | |
1369 | freq->localfile = -1; | |
1370 | ||
1371 | process_http_object_request(freq); | |
1372 | ||
1373 | if (freq->http_code == 416) { | |
bd757c18 | 1374 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1375 | } else if (freq->curl_result != CURLE_OK) { |
1376 | if (stat(freq->tmpfile, &st) == 0) | |
1377 | if (st.st_size == 0) | |
1378 | unlink_or_warn(freq->tmpfile); | |
1379 | return -1; | |
1380 | } | |
1381 | ||
1382 | git_inflate_end(&freq->stream); | |
1383 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1384 | if (freq->zret != Z_STREAM_END) { | |
1385 | unlink_or_warn(freq->tmpfile); | |
1386 | return -1; | |
1387 | } | |
1388 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1389 | unlink_or_warn(freq->tmpfile); | |
1390 | return -1; | |
1391 | } | |
1392 | freq->rename = | |
0da8b2e7 | 1393 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1394 | |
1395 | return freq->rename; | |
1396 | } | |
1397 | ||
1398 | void abort_http_object_request(struct http_object_request *freq) | |
1399 | { | |
1400 | unlink_or_warn(freq->tmpfile); | |
1401 | ||
1402 | release_http_object_request(freq); | |
1403 | } | |
1404 | ||
1405 | void release_http_object_request(struct http_object_request *freq) | |
1406 | { | |
1407 | if (freq->localfile != -1) { | |
1408 | close(freq->localfile); | |
1409 | freq->localfile = -1; | |
1410 | } | |
1411 | if (freq->url != NULL) { | |
1412 | free(freq->url); | |
1413 | freq->url = NULL; | |
1414 | } | |
4b9fa0e3 TRC |
1415 | if (freq->slot != NULL) { |
1416 | freq->slot->callback_func = NULL; | |
1417 | freq->slot->callback_data = NULL; | |
1418 | release_active_slot(freq->slot); | |
1419 | freq->slot = NULL; | |
1420 | } | |
5424bc55 | 1421 | } |