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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" |
148bb6a7 | 6 | #include "credential.h" |
745c7c8e | 7 | #include "version.h" |
047ec602 | 8 | #include "pkt-line.h" |
29508e1e | 9 | |
4251ccbd | 10 | int active_requests; |
e9176745 | 11 | int http_is_verbose; |
de1a2fdd | 12 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 13 | |
b8ac9230 MS |
14 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
15 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
16 | #endif | |
17 | ||
ad75ebe5 TRC |
18 | static int min_curl_sessions = 1; |
19 | static int curl_session_count; | |
29508e1e | 20 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
21 | static int max_requests = -1; |
22 | static CURLM *curlm; | |
29508e1e NH |
23 | #endif |
24 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 25 | static CURL *curl_default; |
29508e1e | 26 | #endif |
5424bc55 TRC |
27 | |
28 | #define PREV_BUF_SIZE 4096 | |
29 | #define RANGE_HEADER_SIZE 30 | |
30 | ||
29508e1e NH |
31 | char curl_errorstr[CURL_ERROR_SIZE]; |
32 | ||
cc3530e8 | 33 | static int curl_ssl_verify = -1; |
4bc444eb | 34 | static int curl_ssl_try; |
4251ccbd | 35 | static const char *ssl_cert; |
ef52aafa | 36 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 37 | static const char *ssl_key; |
29508e1e NH |
38 | #endif |
39 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 40 | static const char *ssl_capath; |
29508e1e | 41 | #endif |
4251ccbd | 42 | static const char *ssl_cainfo; |
cc3530e8 MH |
43 | static long curl_low_speed_limit = -1; |
44 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
45 | static int curl_ftp_no_epsv; |
46 | static const char *curl_http_proxy; | |
bcfb95dd | 47 | static const char *curl_cookie_file; |
148bb6a7 | 48 | static struct credential http_auth = CREDENTIAL_INIT; |
a4ddbc33 | 49 | static int http_proactive_auth; |
b1d1058c | 50 | static const char *user_agent; |
29508e1e | 51 | |
30dd9163 ML |
52 | #if LIBCURL_VERSION_NUM >= 0x071700 |
53 | /* Use CURLOPT_KEYPASSWD as is */ | |
54 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
55 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
56 | #else | |
57 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
58 | #endif | |
59 | ||
148bb6a7 | 60 | static struct credential cert_auth = CREDENTIAL_INIT; |
30dd9163 ML |
61 | static int ssl_cert_password_required; |
62 | ||
cc3530e8 | 63 | static struct curl_slist *pragma_header; |
5424bc55 | 64 | static struct curl_slist *no_pragma_header; |
e9176745 | 65 | |
4251ccbd | 66 | static struct active_request_slot *active_queue_head; |
29508e1e | 67 | |
a04ff3ec | 68 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
69 | { |
70 | size_t size = eltsize * nmemb; | |
f444e528 JH |
71 | struct buffer *buffer = buffer_; |
72 | ||
028c2976 MH |
73 | if (size > buffer->buf.len - buffer->posn) |
74 | size = buffer->buf.len - buffer->posn; | |
75 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 76 | buffer->posn += size; |
028c2976 | 77 | |
29508e1e NH |
78 | return size; |
79 | } | |
80 | ||
3944ba0c MS |
81 | #ifndef NO_CURL_IOCTL |
82 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
83 | { | |
84 | struct buffer *buffer = clientp; | |
85 | ||
86 | switch (cmd) { | |
87 | case CURLIOCMD_NOP: | |
88 | return CURLIOE_OK; | |
89 | ||
90 | case CURLIOCMD_RESTARTREAD: | |
91 | buffer->posn = 0; | |
92 | return CURLIOE_OK; | |
93 | ||
94 | default: | |
95 | return CURLIOE_UNKNOWNCMD; | |
96 | } | |
97 | } | |
98 | #endif | |
99 | ||
a04ff3ec | 100 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
101 | { |
102 | size_t size = eltsize * nmemb; | |
f444e528 JH |
103 | struct strbuf *buffer = buffer_; |
104 | ||
028c2976 | 105 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
106 | return size; |
107 | } | |
108 | ||
a04ff3ec | 109 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e | 110 | { |
29508e1e NH |
111 | return eltsize * nmemb; |
112 | } | |
113 | ||
29508e1e NH |
114 | #ifdef USE_CURL_MULTI |
115 | static void process_curl_messages(void) | |
116 | { | |
117 | int num_messages; | |
118 | struct active_request_slot *slot; | |
119 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
120 | ||
121 | while (curl_message != NULL) { | |
122 | if (curl_message->msg == CURLMSG_DONE) { | |
123 | int curl_result = curl_message->data.result; | |
124 | slot = active_queue_head; | |
125 | while (slot != NULL && | |
126 | slot->curl != curl_message->easy_handle) | |
127 | slot = slot->next; | |
128 | if (slot != NULL) { | |
129 | curl_multi_remove_handle(curlm, slot->curl); | |
130 | slot->curl_result = curl_result; | |
131 | finish_active_slot(slot); | |
132 | } else { | |
133 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
134 | } | |
135 | } else { | |
136 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
137 | (int)curl_message->msg); | |
138 | } | |
139 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
140 | } | |
141 | } | |
142 | #endif | |
143 | ||
ef90d6d4 | 144 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
145 | { |
146 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 147 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
148 | return 0; |
149 | } | |
7059cd99 JH |
150 | if (!strcmp("http.sslcert", var)) |
151 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 152 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
153 | if (!strcmp("http.sslkey", var)) |
154 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
155 | #endif |
156 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
157 | if (!strcmp("http.sslcapath", var)) |
158 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 159 | #endif |
7059cd99 JH |
160 | if (!strcmp("http.sslcainfo", var)) |
161 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 | 162 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
3f4ccd2b | 163 | ssl_cert_password_required = git_config_bool(var, value); |
754ae192 ML |
164 | return 0; |
165 | } | |
4bc444eb MV |
166 | if (!strcmp("http.ssltry", var)) { |
167 | curl_ssl_try = git_config_bool(var, value); | |
168 | return 0; | |
169 | } | |
ad75ebe5 TRC |
170 | if (!strcmp("http.minsessions", var)) { |
171 | min_curl_sessions = git_config_int(var, value); | |
172 | #ifndef USE_CURL_MULTI | |
173 | if (min_curl_sessions > 1) | |
174 | min_curl_sessions = 1; | |
175 | #endif | |
176 | return 0; | |
177 | } | |
a6080a0a | 178 | #ifdef USE_CURL_MULTI |
29508e1e | 179 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 180 | max_requests = git_config_int(var, value); |
29508e1e NH |
181 | return 0; |
182 | } | |
183 | #endif | |
29508e1e | 184 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 185 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
186 | return 0; |
187 | } | |
188 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 189 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
190 | return 0; |
191 | } | |
192 | ||
3ea099d4 SK |
193 | if (!strcmp("http.noepsv", var)) { |
194 | curl_ftp_no_epsv = git_config_bool(var, value); | |
195 | return 0; | |
196 | } | |
7059cd99 JH |
197 | if (!strcmp("http.proxy", var)) |
198 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 199 | |
bcfb95dd DB |
200 | if (!strcmp("http.cookiefile", var)) |
201 | return git_config_string(&curl_cookie_file, var, value); | |
202 | ||
de1a2fdd SP |
203 | if (!strcmp("http.postbuffer", var)) { |
204 | http_post_buffer = git_config_int(var, value); | |
205 | if (http_post_buffer < LARGE_PACKET_MAX) | |
206 | http_post_buffer = LARGE_PACKET_MAX; | |
207 | return 0; | |
208 | } | |
209 | ||
b1d1058c SO |
210 | if (!strcmp("http.useragent", var)) |
211 | return git_config_string(&user_agent, var, value); | |
212 | ||
29508e1e | 213 | /* Fall back on the default ones */ |
ef90d6d4 | 214 | return git_default_config(var, value, cb); |
29508e1e NH |
215 | } |
216 | ||
c33976cb JH |
217 | static void init_curl_http_auth(CURL *result) |
218 | { | |
6f4c347c JK |
219 | if (!http_auth.username) |
220 | return; | |
221 | ||
222 | credential_fill(&http_auth); | |
223 | ||
224 | #if LIBCURL_VERSION_NUM >= 0x071301 | |
225 | curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username); | |
226 | curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password); | |
227 | #else | |
228 | { | |
aa0834a0 | 229 | static struct strbuf up = STRBUF_INIT; |
aa0834a0 | 230 | strbuf_reset(&up); |
148bb6a7 JK |
231 | strbuf_addf(&up, "%s:%s", |
232 | http_auth.username, http_auth.password); | |
aa0834a0 | 233 | curl_easy_setopt(result, CURLOPT_USERPWD, up.buf); |
c33976cb | 234 | } |
6f4c347c | 235 | #endif |
c33976cb JH |
236 | } |
237 | ||
30dd9163 ML |
238 | static int has_cert_password(void) |
239 | { | |
30dd9163 ML |
240 | if (ssl_cert == NULL || ssl_cert_password_required != 1) |
241 | return 0; | |
148bb6a7 JK |
242 | if (!cert_auth.password) { |
243 | cert_auth.protocol = xstrdup("cert"); | |
75e9a405 | 244 | cert_auth.username = xstrdup(""); |
148bb6a7 JK |
245 | cert_auth.path = xstrdup(ssl_cert); |
246 | credential_fill(&cert_auth); | |
247 | } | |
248 | return 1; | |
30dd9163 ML |
249 | } |
250 | ||
4251ccbd | 251 | static CURL *get_curl_handle(void) |
11979b98 | 252 | { |
4251ccbd | 253 | CURL *result = curl_easy_init(); |
11979b98 | 254 | |
a5ccc597 JH |
255 | if (!curl_ssl_verify) { |
256 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
257 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
258 | } else { | |
259 | /* Verify authenticity of the peer's certificate */ | |
260 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
261 | /* The name in the cert must match whom we tried to connect */ | |
262 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
263 | } | |
264 | ||
11979b98 JH |
265 | #if LIBCURL_VERSION_NUM >= 0x070907 |
266 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
267 | #endif | |
b8ac9230 | 268 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 269 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 270 | #endif |
11979b98 | 271 | |
a4ddbc33 JK |
272 | if (http_proactive_auth) |
273 | init_curl_http_auth(result); | |
274 | ||
11979b98 JH |
275 | if (ssl_cert != NULL) |
276 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 | 277 | if (has_cert_password()) |
148bb6a7 | 278 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password); |
ef52aafa | 279 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
280 | if (ssl_key != NULL) |
281 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
282 | #endif | |
283 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
284 | if (ssl_capath != NULL) | |
285 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
286 | #endif | |
287 | if (ssl_cainfo != NULL) | |
288 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
11979b98 JH |
289 | |
290 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
291 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
292 | curl_low_speed_limit); | |
293 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
294 | curl_low_speed_time); | |
295 | } | |
296 | ||
297 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
298 | #if LIBCURL_VERSION_NUM >= 0x071301 |
299 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
300 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
301 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
302 | #endif | |
11979b98 | 303 | |
7982d74e MW |
304 | if (getenv("GIT_CURL_VERBOSE")) |
305 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
306 | ||
b1d1058c | 307 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
745c7c8e | 308 | user_agent ? user_agent : git_user_agent()); |
20fc9bc5 | 309 | |
3ea099d4 SK |
310 | if (curl_ftp_no_epsv) |
311 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
312 | ||
4bc444eb MV |
313 | #ifdef CURLOPT_USE_SSL |
314 | if (curl_ssl_try) | |
315 | curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY); | |
316 | #endif | |
317 | ||
dd613997 | 318 | if (curl_http_proxy) { |
9c5665aa | 319 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); |
dd613997 NBL |
320 | curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY); |
321 | } | |
9c5665aa | 322 | |
11979b98 JH |
323 | return result; |
324 | } | |
325 | ||
7059cd99 JH |
326 | static void set_from_env(const char **var, const char *envname) |
327 | { | |
328 | const char *val = getenv(envname); | |
329 | if (val) | |
330 | *var = val; | |
331 | } | |
332 | ||
a4ddbc33 | 333 | void http_init(struct remote *remote, const char *url, int proactive_auth) |
29508e1e NH |
334 | { |
335 | char *low_speed_limit; | |
336 | char *low_speed_time; | |
337 | ||
e9176745 TRC |
338 | http_is_verbose = 0; |
339 | ||
7059cd99 JH |
340 | git_config(http_options, NULL); |
341 | ||
29508e1e NH |
342 | curl_global_init(CURL_GLOBAL_ALL); |
343 | ||
a4ddbc33 JK |
344 | http_proactive_auth = proactive_auth; |
345 | ||
9fc6440d MH |
346 | if (remote && remote->http_proxy) |
347 | curl_http_proxy = xstrdup(remote->http_proxy); | |
348 | ||
29508e1e | 349 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 350 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
351 | |
352 | #ifdef USE_CURL_MULTI | |
353 | { | |
354 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
355 | if (http_max_requests != NULL) | |
356 | max_requests = atoi(http_max_requests); | |
357 | } | |
358 | ||
359 | curlm = curl_multi_init(); | |
360 | if (curlm == NULL) { | |
361 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
362 | exit(1); | |
363 | } | |
364 | #endif | |
365 | ||
366 | if (getenv("GIT_SSL_NO_VERIFY")) | |
367 | curl_ssl_verify = 0; | |
368 | ||
7059cd99 | 369 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 370 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 371 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
372 | #endif |
373 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 374 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 375 | #endif |
7059cd99 | 376 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 377 | |
b1d1058c SO |
378 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
379 | ||
29508e1e NH |
380 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
381 | if (low_speed_limit != NULL) | |
382 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
383 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
384 | if (low_speed_time != NULL) | |
385 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
386 | ||
29508e1e NH |
387 | if (curl_ssl_verify == -1) |
388 | curl_ssl_verify = 1; | |
389 | ||
ad75ebe5 | 390 | curl_session_count = 0; |
29508e1e NH |
391 | #ifdef USE_CURL_MULTI |
392 | if (max_requests < 1) | |
393 | max_requests = DEFAULT_MAX_REQUESTS; | |
394 | #endif | |
395 | ||
3ea099d4 SK |
396 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
397 | curl_ftp_no_epsv = 1; | |
398 | ||
deba4937 | 399 | if (url) { |
148bb6a7 | 400 | credential_from_url(&http_auth, url); |
754ae192 ML |
401 | if (!ssl_cert_password_required && |
402 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
deba4937 | 403 | !prefixcmp(url, "https://")) |
30dd9163 ML |
404 | ssl_cert_password_required = 1; |
405 | } | |
c33976cb | 406 | |
29508e1e NH |
407 | #ifndef NO_CURL_EASY_DUPHANDLE |
408 | curl_default = get_curl_handle(); | |
409 | #endif | |
410 | } | |
411 | ||
412 | void http_cleanup(void) | |
413 | { | |
414 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
415 | |
416 | while (slot != NULL) { | |
3278cd0a | 417 | struct active_request_slot *next = slot->next; |
f23d1f76 | 418 | if (slot->curl != NULL) { |
29508e1e | 419 | #ifdef USE_CURL_MULTI |
f23d1f76 | 420 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 421 | #endif |
29508e1e | 422 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 423 | } |
3278cd0a SP |
424 | free(slot); |
425 | slot = next; | |
29508e1e | 426 | } |
3278cd0a | 427 | active_queue_head = NULL; |
29508e1e NH |
428 | |
429 | #ifndef NO_CURL_EASY_DUPHANDLE | |
430 | curl_easy_cleanup(curl_default); | |
431 | #endif | |
432 | ||
433 | #ifdef USE_CURL_MULTI | |
434 | curl_multi_cleanup(curlm); | |
435 | #endif | |
436 | curl_global_cleanup(); | |
b3ca4e4e NH |
437 | |
438 | curl_slist_free_all(pragma_header); | |
3278cd0a | 439 | pragma_header = NULL; |
9fc6440d | 440 | |
e9176745 TRC |
441 | curl_slist_free_all(no_pragma_header); |
442 | no_pragma_header = NULL; | |
443 | ||
9fc6440d | 444 | if (curl_http_proxy) { |
e4a80ecf | 445 | free((void *)curl_http_proxy); |
9fc6440d MH |
446 | curl_http_proxy = NULL; |
447 | } | |
30dd9163 | 448 | |
148bb6a7 JK |
449 | if (cert_auth.password != NULL) { |
450 | memset(cert_auth.password, 0, strlen(cert_auth.password)); | |
451 | free(cert_auth.password); | |
452 | cert_auth.password = NULL; | |
30dd9163 ML |
453 | } |
454 | ssl_cert_password_required = 0; | |
29508e1e NH |
455 | } |
456 | ||
29508e1e NH |
457 | struct active_request_slot *get_active_slot(void) |
458 | { | |
459 | struct active_request_slot *slot = active_queue_head; | |
460 | struct active_request_slot *newslot; | |
461 | ||
462 | #ifdef USE_CURL_MULTI | |
463 | int num_transfers; | |
464 | ||
465 | /* Wait for a slot to open up if the queue is full */ | |
466 | while (active_requests >= max_requests) { | |
467 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 468 | if (num_transfers < active_requests) |
29508e1e | 469 | process_curl_messages(); |
29508e1e NH |
470 | } |
471 | #endif | |
472 | ||
4251ccbd | 473 | while (slot != NULL && slot->in_use) |
29508e1e | 474 | slot = slot->next; |
4251ccbd | 475 | |
29508e1e NH |
476 | if (slot == NULL) { |
477 | newslot = xmalloc(sizeof(*newslot)); | |
478 | newslot->curl = NULL; | |
479 | newslot->in_use = 0; | |
480 | newslot->next = NULL; | |
481 | ||
482 | slot = active_queue_head; | |
483 | if (slot == NULL) { | |
484 | active_queue_head = newslot; | |
485 | } else { | |
4251ccbd | 486 | while (slot->next != NULL) |
29508e1e | 487 | slot = slot->next; |
29508e1e NH |
488 | slot->next = newslot; |
489 | } | |
490 | slot = newslot; | |
491 | } | |
492 | ||
493 | if (slot->curl == NULL) { | |
494 | #ifdef NO_CURL_EASY_DUPHANDLE | |
495 | slot->curl = get_curl_handle(); | |
496 | #else | |
497 | slot->curl = curl_easy_duphandle(curl_default); | |
498 | #endif | |
ad75ebe5 | 499 | curl_session_count++; |
29508e1e NH |
500 | } |
501 | ||
502 | active_requests++; | |
503 | slot->in_use = 1; | |
c8568e13 | 504 | slot->results = NULL; |
baa7b67d | 505 | slot->finished = NULL; |
29508e1e NH |
506 | slot->callback_data = NULL; |
507 | slot->callback_func = NULL; | |
bcfb95dd | 508 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
29508e1e | 509 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 510 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
511 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
512 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
513 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 514 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
515 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
516 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
b793acf1 | 517 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1); |
dfa1725a JK |
518 | if (http_auth.password) |
519 | init_curl_http_auth(slot->curl); | |
29508e1e NH |
520 | |
521 | return slot; | |
522 | } | |
523 | ||
524 | int start_active_slot(struct active_request_slot *slot) | |
525 | { | |
526 | #ifdef USE_CURL_MULTI | |
527 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 528 | int num_transfers; |
29508e1e NH |
529 | |
530 | if (curlm_result != CURLM_OK && | |
531 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
532 | active_requests--; | |
533 | slot->in_use = 0; | |
534 | return 0; | |
535 | } | |
45c17412 DB |
536 | |
537 | /* | |
538 | * We know there must be something to do, since we just added | |
539 | * something. | |
540 | */ | |
541 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
542 | #endif |
543 | return 1; | |
544 | } | |
545 | ||
546 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
547 | struct fill_chain { |
548 | void *data; | |
549 | int (*fill)(void *); | |
550 | struct fill_chain *next; | |
551 | }; | |
552 | ||
4251ccbd | 553 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
554 | |
555 | void add_fill_function(void *data, int (*fill)(void *)) | |
556 | { | |
e8eec71d | 557 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
558 | struct fill_chain **linkp = &fill_cfg; |
559 | new->data = data; | |
560 | new->fill = fill; | |
561 | new->next = NULL; | |
562 | while (*linkp) | |
563 | linkp = &(*linkp)->next; | |
564 | *linkp = new; | |
565 | } | |
566 | ||
45c17412 DB |
567 | void fill_active_slots(void) |
568 | { | |
569 | struct active_request_slot *slot = active_queue_head; | |
570 | ||
fc57b6aa DB |
571 | while (active_requests < max_requests) { |
572 | struct fill_chain *fill; | |
573 | for (fill = fill_cfg; fill; fill = fill->next) | |
574 | if (fill->fill(fill->data)) | |
575 | break; | |
576 | ||
577 | if (!fill) | |
45c17412 | 578 | break; |
fc57b6aa | 579 | } |
45c17412 DB |
580 | |
581 | while (slot != NULL) { | |
ad75ebe5 TRC |
582 | if (!slot->in_use && slot->curl != NULL |
583 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
584 | curl_easy_cleanup(slot->curl); |
585 | slot->curl = NULL; | |
ad75ebe5 | 586 | curl_session_count--; |
45c17412 DB |
587 | } |
588 | slot = slot->next; | |
589 | } | |
590 | } | |
591 | ||
29508e1e NH |
592 | void step_active_slots(void) |
593 | { | |
594 | int num_transfers; | |
595 | CURLMcode curlm_result; | |
596 | ||
597 | do { | |
598 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
599 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
600 | if (num_transfers < active_requests) { | |
601 | process_curl_messages(); | |
602 | fill_active_slots(); | |
603 | } | |
604 | } | |
605 | #endif | |
606 | ||
607 | void run_active_slot(struct active_request_slot *slot) | |
608 | { | |
609 | #ifdef USE_CURL_MULTI | |
29508e1e NH |
610 | fd_set readfds; |
611 | fd_set writefds; | |
612 | fd_set excfds; | |
613 | int max_fd; | |
614 | struct timeval select_timeout; | |
baa7b67d | 615 | int finished = 0; |
29508e1e | 616 | |
baa7b67d NH |
617 | slot->finished = &finished; |
618 | while (!finished) { | |
29508e1e NH |
619 | step_active_slots(); |
620 | ||
df26c471 | 621 | if (slot->in_use) { |
eb56c821 MF |
622 | #if LIBCURL_VERSION_NUM >= 0x070f04 |
623 | long curl_timeout; | |
624 | curl_multi_timeout(curlm, &curl_timeout); | |
625 | if (curl_timeout == 0) { | |
626 | continue; | |
627 | } else if (curl_timeout == -1) { | |
628 | select_timeout.tv_sec = 0; | |
629 | select_timeout.tv_usec = 50000; | |
630 | } else { | |
631 | select_timeout.tv_sec = curl_timeout / 1000; | |
632 | select_timeout.tv_usec = (curl_timeout % 1000) * 1000; | |
633 | } | |
634 | #else | |
635 | select_timeout.tv_sec = 0; | |
636 | select_timeout.tv_usec = 50000; | |
637 | #endif | |
29508e1e | 638 | |
6f9dd67f | 639 | max_fd = -1; |
29508e1e NH |
640 | FD_ZERO(&readfds); |
641 | FD_ZERO(&writefds); | |
642 | FD_ZERO(&excfds); | |
6f9dd67f | 643 | curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd); |
eb56c821 | 644 | |
7202b81f SZ |
645 | /* |
646 | * It can happen that curl_multi_timeout returns a pathologically | |
647 | * long timeout when curl_multi_fdset returns no file descriptors | |
648 | * to read. See commit message for more details. | |
649 | */ | |
650 | if (max_fd < 0 && | |
651 | (select_timeout.tv_sec > 0 || | |
652 | select_timeout.tv_usec > 50000)) { | |
653 | select_timeout.tv_sec = 0; | |
654 | select_timeout.tv_usec = 50000; | |
655 | } | |
656 | ||
6f9dd67f | 657 | select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout); |
29508e1e NH |
658 | } |
659 | } | |
660 | #else | |
661 | while (slot->in_use) { | |
662 | slot->curl_result = curl_easy_perform(slot->curl); | |
663 | finish_active_slot(slot); | |
664 | } | |
665 | #endif | |
666 | } | |
667 | ||
53f31389 | 668 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 669 | { |
028c2976 MH |
670 | active_requests--; |
671 | slot->in_use = 0; | |
53f31389 MW |
672 | } |
673 | ||
83e41e2e | 674 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
675 | { |
676 | closedown_active_slot(slot); | |
ad75ebe5 | 677 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 678 | #ifdef USE_CURL_MULTI |
53f31389 | 679 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 680 | #endif |
53f31389 MW |
681 | curl_easy_cleanup(slot->curl); |
682 | slot->curl = NULL; | |
ad75ebe5 | 683 | curl_session_count--; |
53f31389 | 684 | } |
b3ca4e4e | 685 | #ifdef USE_CURL_MULTI |
53f31389 | 686 | fill_active_slots(); |
b3ca4e4e | 687 | #endif |
53f31389 MW |
688 | } |
689 | ||
de1a2fdd | 690 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
691 | { |
692 | closedown_active_slot(slot); | |
028c2976 | 693 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 694 | |
baa7b67d NH |
695 | if (slot->finished != NULL) |
696 | (*slot->finished) = 1; | |
697 | ||
c8568e13 NH |
698 | /* Store slot results so they can be read after the slot is reused */ |
699 | if (slot->results != NULL) { | |
700 | slot->results->curl_result = slot->curl_result; | |
701 | slot->results->http_code = slot->http_code; | |
702 | } | |
703 | ||
028c2976 | 704 | /* Run callback if appropriate */ |
4251ccbd | 705 | if (slot->callback_func != NULL) |
028c2976 | 706 | slot->callback_func(slot->callback_data); |
29508e1e NH |
707 | } |
708 | ||
709 | void finish_all_active_slots(void) | |
710 | { | |
711 | struct active_request_slot *slot = active_queue_head; | |
712 | ||
713 | while (slot != NULL) | |
714 | if (slot->in_use) { | |
715 | run_active_slot(slot); | |
716 | slot = active_queue_head; | |
717 | } else { | |
718 | slot = slot->next; | |
719 | } | |
720 | } | |
d7e92806 | 721 | |
5ace994f | 722 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
723 | static inline int needs_quote(int ch) |
724 | { | |
725 | if (((ch >= 'A') && (ch <= 'Z')) | |
726 | || ((ch >= 'a') && (ch <= 'z')) | |
727 | || ((ch >= '0') && (ch <= '9')) | |
728 | || (ch == '/') | |
729 | || (ch == '-') | |
730 | || (ch == '.')) | |
731 | return 0; | |
732 | return 1; | |
733 | } | |
734 | ||
d7e92806 MH |
735 | static char *quote_ref_url(const char *base, const char *ref) |
736 | { | |
113106e0 | 737 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 738 | const char *cp; |
113106e0 | 739 | int ch; |
d7e92806 | 740 | |
5ace994f | 741 | end_url_with_slash(&buf, base); |
113106e0 TRC |
742 | |
743 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 744 | if (needs_quote(ch)) |
113106e0 | 745 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 746 | else |
113106e0 | 747 | strbuf_addch(&buf, *cp); |
d7e92806 | 748 | |
113106e0 | 749 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
750 | } |
751 | ||
5424bc55 TRC |
752 | void append_remote_object_url(struct strbuf *buf, const char *url, |
753 | const char *hex, | |
754 | int only_two_digit_prefix) | |
755 | { | |
800324c3 TRC |
756 | end_url_with_slash(buf, url); |
757 | ||
758 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
759 | if (!only_two_digit_prefix) |
760 | strbuf_addf(buf, "%s", hex+2); | |
761 | } | |
762 | ||
763 | char *get_remote_object_url(const char *url, const char *hex, | |
764 | int only_two_digit_prefix) | |
765 | { | |
766 | struct strbuf buf = STRBUF_INIT; | |
767 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
768 | return strbuf_detach(&buf, NULL); | |
769 | } | |
770 | ||
1960897e | 771 | int handle_curl_result(struct slot_results *results) |
88097030 | 772 | { |
6d052d78 JK |
773 | /* |
774 | * If we see a failing http code with CURLE_OK, we have turned off | |
775 | * FAILONERROR (to keep the server's custom error response), and should | |
776 | * translate the code into failure here. | |
777 | */ | |
778 | if (results->curl_result == CURLE_OK && | |
779 | results->http_code >= 400) { | |
780 | results->curl_result = CURLE_HTTP_RETURNED_ERROR; | |
781 | /* | |
782 | * Normally curl will already have put the "reason phrase" | |
783 | * from the server into curl_errorstr; unfortunately without | |
784 | * FAILONERROR it is lost, so we can give only the numeric | |
785 | * status code. | |
786 | */ | |
787 | snprintf(curl_errorstr, sizeof(curl_errorstr), | |
788 | "The requested URL returned error: %ld", | |
789 | results->http_code); | |
790 | } | |
791 | ||
88097030 JK |
792 | if (results->curl_result == CURLE_OK) { |
793 | credential_approve(&http_auth); | |
794 | return HTTP_OK; | |
795 | } else if (missing_target(results)) | |
796 | return HTTP_MISSING_TARGET; | |
797 | else if (results->http_code == 401) { | |
798 | if (http_auth.username && http_auth.password) { | |
799 | credential_reject(&http_auth); | |
800 | return HTTP_NOAUTH; | |
801 | } else { | |
802 | credential_fill(&http_auth); | |
88097030 JK |
803 | return HTTP_REAUTH; |
804 | } | |
805 | } else { | |
3503e9ab | 806 | #if LIBCURL_VERSION_NUM >= 0x070c00 |
88097030 JK |
807 | if (!curl_errorstr[0]) |
808 | strlcpy(curl_errorstr, | |
809 | curl_easy_strerror(results->curl_result), | |
810 | sizeof(curl_errorstr)); | |
3503e9ab | 811 | #endif |
88097030 JK |
812 | return HTTP_ERROR; |
813 | } | |
814 | } | |
815 | ||
e929cd20 MH |
816 | /* http_request() targets */ |
817 | #define HTTP_REQUEST_STRBUF 0 | |
818 | #define HTTP_REQUEST_FILE 1 | |
819 | ||
4656bf47 SP |
820 | static int http_request(const char *url, struct strbuf *type, |
821 | void *result, int target, int options) | |
e929cd20 MH |
822 | { |
823 | struct active_request_slot *slot; | |
824 | struct slot_results results; | |
825 | struct curl_slist *headers = NULL; | |
826 | struct strbuf buf = STRBUF_INIT; | |
827 | int ret; | |
828 | ||
829 | slot = get_active_slot(); | |
830 | slot->results = &results; | |
831 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
832 | ||
833 | if (result == NULL) { | |
834 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
835 | } else { | |
836 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
837 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
838 | ||
839 | if (target == HTTP_REQUEST_FILE) { | |
840 | long posn = ftell(result); | |
841 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
842 | fwrite); | |
843 | if (posn > 0) { | |
844 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
845 | headers = curl_slist_append(headers, buf.buf); | |
846 | strbuf_reset(&buf); | |
847 | } | |
e929cd20 MH |
848 | } else |
849 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
850 | fwrite_buffer); | |
851 | } | |
852 | ||
853 | strbuf_addstr(&buf, "Pragma:"); | |
854 | if (options & HTTP_NO_CACHE) | |
855 | strbuf_addstr(&buf, " no-cache"); | |
6d052d78 JK |
856 | if (options & HTTP_KEEP_ERROR) |
857 | curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0); | |
e929cd20 MH |
858 | |
859 | headers = curl_slist_append(headers, buf.buf); | |
860 | ||
861 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
862 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
aa90b969 | 863 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip"); |
e929cd20 MH |
864 | |
865 | if (start_active_slot(slot)) { | |
866 | run_active_slot(slot); | |
1960897e | 867 | ret = handle_curl_result(&results); |
e929cd20 | 868 | } else { |
67d2a7b5 JK |
869 | snprintf(curl_errorstr, sizeof(curl_errorstr), |
870 | "failed to start HTTP request"); | |
e929cd20 MH |
871 | ret = HTTP_START_FAILED; |
872 | } | |
873 | ||
4656bf47 SP |
874 | if (type) { |
875 | char *t; | |
3443db51 | 876 | strbuf_reset(type); |
4656bf47 SP |
877 | curl_easy_getinfo(slot->curl, CURLINFO_CONTENT_TYPE, &t); |
878 | if (t) | |
879 | strbuf_addstr(type, t); | |
880 | } | |
881 | ||
e929cd20 MH |
882 | curl_slist_free_all(headers); |
883 | strbuf_release(&buf); | |
884 | ||
885 | return ret; | |
886 | } | |
887 | ||
4656bf47 SP |
888 | static int http_request_reauth(const char *url, |
889 | struct strbuf *type, | |
890 | void *result, int target, | |
8d677edc JK |
891 | int options) |
892 | { | |
4656bf47 | 893 | int ret = http_request(url, type, result, target, options); |
8d677edc JK |
894 | if (ret != HTTP_REAUTH) |
895 | return ret; | |
6d052d78 JK |
896 | |
897 | /* | |
898 | * If we are using KEEP_ERROR, the previous request may have | |
899 | * put cruft into our output stream; we should clear it out before | |
900 | * making our next request. We only know how to do this for | |
901 | * the strbuf case, but that is enough to satisfy current callers. | |
902 | */ | |
903 | if (options & HTTP_KEEP_ERROR) { | |
904 | switch (target) { | |
905 | case HTTP_REQUEST_STRBUF: | |
906 | strbuf_reset(result); | |
907 | break; | |
908 | default: | |
909 | die("BUG: HTTP_KEEP_ERROR is only supported with strbufs"); | |
910 | } | |
911 | } | |
4656bf47 | 912 | return http_request(url, type, result, target, options); |
8d677edc JK |
913 | } |
914 | ||
4656bf47 SP |
915 | int http_get_strbuf(const char *url, |
916 | struct strbuf *type, | |
917 | struct strbuf *result, int options) | |
e929cd20 | 918 | { |
4656bf47 SP |
919 | return http_request_reauth(url, type, result, |
920 | HTTP_REQUEST_STRBUF, options); | |
e929cd20 MH |
921 | } |
922 | ||
83e41e2e | 923 | /* |
a7793a74 | 924 | * Downloads a URL and stores the result in the given file. |
83e41e2e JH |
925 | * |
926 | * If a previous interrupted download is detected (i.e. a previous temporary | |
927 | * file is still around) the download is resumed. | |
928 | */ | |
929 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
930 | { |
931 | int ret; | |
932 | struct strbuf tmpfile = STRBUF_INIT; | |
933 | FILE *result; | |
934 | ||
935 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
936 | result = fopen(tmpfile.buf, "a"); | |
937 | if (! result) { | |
938 | error("Unable to open local file %s", tmpfile.buf); | |
939 | ret = HTTP_ERROR; | |
940 | goto cleanup; | |
941 | } | |
942 | ||
4656bf47 | 943 | ret = http_request_reauth(url, NULL, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
944 | fclose(result); |
945 | ||
946 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
947 | ret = HTTP_ERROR; | |
948 | cleanup: | |
949 | strbuf_release(&tmpfile); | |
950 | return ret; | |
951 | } | |
952 | ||
c13b2633 | 953 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
954 | { |
955 | char *url; | |
956 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 957 | int ret = -1; |
d7e92806 | 958 | |
c13b2633 | 959 | url = quote_ref_url(base, ref->name); |
4656bf47 | 960 | if (http_get_strbuf(url, NULL, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
0d5896e1 MH |
961 | strbuf_rtrim(&buffer); |
962 | if (buffer.len == 40) | |
963 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
964 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
965 | ref->symref = xstrdup(buffer.buf + 5); | |
966 | ret = 0; | |
d7e92806 | 967 | } |
d7e92806 MH |
968 | } |
969 | ||
970 | strbuf_release(&buffer); | |
971 | free(url); | |
972 | return ret; | |
973 | } | |
b8caac2b TRC |
974 | |
975 | /* Helpers for fetching packs */ | |
750ef425 | 976 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 977 | { |
750ef425 | 978 | char *url, *tmp; |
b8caac2b | 979 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 980 | |
b8caac2b | 981 | if (http_is_verbose) |
162eb5f8 | 982 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
983 | |
984 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 985 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
986 | url = strbuf_detach(&buf, NULL); |
987 | ||
750ef425 SP |
988 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
989 | tmp = strbuf_detach(&buf, NULL); | |
990 | ||
991 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
82247e9b | 992 | error("Unable to get pack index %s", url); |
750ef425 SP |
993 | free(tmp); |
994 | tmp = NULL; | |
995 | } | |
b8caac2b | 996 | |
b8caac2b | 997 | free(url); |
750ef425 | 998 | return tmp; |
b8caac2b TRC |
999 | } |
1000 | ||
1001 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
1002 | unsigned char *sha1, const char *base_url) | |
1003 | { | |
1004 | struct packed_git *new_pack; | |
750ef425 SP |
1005 | char *tmp_idx = NULL; |
1006 | int ret; | |
b8caac2b | 1007 | |
750ef425 SP |
1008 | if (has_pack_index(sha1)) { |
1009 | new_pack = parse_pack_index(sha1, NULL); | |
1010 | if (!new_pack) | |
1011 | return -1; /* parse_pack_index() already issued error message */ | |
1012 | goto add_pack; | |
1013 | } | |
1014 | ||
1015 | tmp_idx = fetch_pack_index(sha1, base_url); | |
1016 | if (!tmp_idx) | |
b8caac2b TRC |
1017 | return -1; |
1018 | ||
750ef425 SP |
1019 | new_pack = parse_pack_index(sha1, tmp_idx); |
1020 | if (!new_pack) { | |
1021 | unlink(tmp_idx); | |
1022 | free(tmp_idx); | |
1023 | ||
b8caac2b | 1024 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
1025 | } |
1026 | ||
1027 | ret = verify_pack_index(new_pack); | |
1028 | if (!ret) { | |
1029 | close_pack_index(new_pack); | |
1030 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
1031 | } | |
1032 | free(tmp_idx); | |
1033 | if (ret) | |
1034 | return -1; | |
1035 | ||
1036 | add_pack: | |
b8caac2b TRC |
1037 | new_pack->next = *packs_head; |
1038 | *packs_head = new_pack; | |
1039 | return 0; | |
1040 | } | |
1041 | ||
1042 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1043 | { | |
1044 | int ret = 0, i = 0; | |
1045 | char *url, *data; | |
1046 | struct strbuf buf = STRBUF_INIT; | |
1047 | unsigned char sha1[20]; | |
1048 | ||
1049 | end_url_with_slash(&buf, base_url); | |
1050 | strbuf_addstr(&buf, "objects/info/packs"); | |
1051 | url = strbuf_detach(&buf, NULL); | |
1052 | ||
4656bf47 | 1053 | ret = http_get_strbuf(url, NULL, &buf, HTTP_NO_CACHE); |
b8caac2b TRC |
1054 | if (ret != HTTP_OK) |
1055 | goto cleanup; | |
1056 | ||
1057 | data = buf.buf; | |
1058 | while (i < buf.len) { | |
1059 | switch (data[i]) { | |
1060 | case 'P': | |
1061 | i++; | |
1062 | if (i + 52 <= buf.len && | |
1063 | !prefixcmp(data + i, " pack-") && | |
1064 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1065 | get_sha1_hex(data + i + 6, sha1); | |
1066 | fetch_and_setup_pack_index(packs_head, sha1, | |
1067 | base_url); | |
1068 | i += 51; | |
1069 | break; | |
1070 | } | |
1071 | default: | |
1072 | while (i < buf.len && data[i] != '\n') | |
1073 | i++; | |
1074 | } | |
1075 | i++; | |
1076 | } | |
1077 | ||
1078 | cleanup: | |
1079 | free(url); | |
1080 | return ret; | |
1081 | } | |
2264dfa5 TRC |
1082 | |
1083 | void release_http_pack_request(struct http_pack_request *preq) | |
1084 | { | |
1085 | if (preq->packfile != NULL) { | |
1086 | fclose(preq->packfile); | |
1087 | preq->packfile = NULL; | |
2264dfa5 TRC |
1088 | } |
1089 | if (preq->range_header != NULL) { | |
1090 | curl_slist_free_all(preq->range_header); | |
1091 | preq->range_header = NULL; | |
1092 | } | |
1093 | preq->slot = NULL; | |
1094 | free(preq->url); | |
1095 | } | |
1096 | ||
1097 | int finish_http_pack_request(struct http_pack_request *preq) | |
1098 | { | |
2264dfa5 | 1099 | struct packed_git **lst; |
021ab6f0 | 1100 | struct packed_git *p = preq->target; |
fe72d420 SP |
1101 | char *tmp_idx; |
1102 | struct child_process ip; | |
1103 | const char *ip_argv[8]; | |
2264dfa5 | 1104 | |
fe72d420 | 1105 | close_pack_index(p); |
2264dfa5 | 1106 | |
3065274c SP |
1107 | fclose(preq->packfile); |
1108 | preq->packfile = NULL; | |
2264dfa5 TRC |
1109 | |
1110 | lst = preq->lst; | |
021ab6f0 | 1111 | while (*lst != p) |
2264dfa5 TRC |
1112 | lst = &((*lst)->next); |
1113 | *lst = (*lst)->next; | |
1114 | ||
fe72d420 SP |
1115 | tmp_idx = xstrdup(preq->tmpfile); |
1116 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1117 | ".idx.temp"); | |
1118 | ||
1119 | ip_argv[0] = "index-pack"; | |
1120 | ip_argv[1] = "-o"; | |
1121 | ip_argv[2] = tmp_idx; | |
1122 | ip_argv[3] = preq->tmpfile; | |
1123 | ip_argv[4] = NULL; | |
1124 | ||
1125 | memset(&ip, 0, sizeof(ip)); | |
1126 | ip.argv = ip_argv; | |
1127 | ip.git_cmd = 1; | |
1128 | ip.no_stdin = 1; | |
1129 | ip.no_stdout = 1; | |
1130 | ||
1131 | if (run_command(&ip)) { | |
1132 | unlink(preq->tmpfile); | |
1133 | unlink(tmp_idx); | |
1134 | free(tmp_idx); | |
2264dfa5 | 1135 | return -1; |
fe72d420 SP |
1136 | } |
1137 | ||
1138 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1139 | |
fe72d420 SP |
1140 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1141 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1142 | free(tmp_idx); | |
2264dfa5 | 1143 | return -1; |
fe72d420 | 1144 | } |
2264dfa5 | 1145 | |
fe72d420 SP |
1146 | install_packed_git(p); |
1147 | free(tmp_idx); | |
2264dfa5 TRC |
1148 | return 0; |
1149 | } | |
1150 | ||
1151 | struct http_pack_request *new_http_pack_request( | |
1152 | struct packed_git *target, const char *base_url) | |
1153 | { | |
2264dfa5 TRC |
1154 | long prev_posn = 0; |
1155 | char range[RANGE_HEADER_SIZE]; | |
1156 | struct strbuf buf = STRBUF_INIT; | |
1157 | struct http_pack_request *preq; | |
1158 | ||
ec99c9a8 | 1159 | preq = xcalloc(1, sizeof(*preq)); |
2264dfa5 | 1160 | preq->target = target; |
2264dfa5 TRC |
1161 | |
1162 | end_url_with_slash(&buf, base_url); | |
1163 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1164 | sha1_to_hex(target->sha1)); | |
bb99190e | 1165 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1166 | |
90d05713 TRC |
1167 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1168 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1169 | preq->packfile = fopen(preq->tmpfile, "a"); |
1170 | if (!preq->packfile) { | |
1171 | error("Unable to open local file %s for pack", | |
1172 | preq->tmpfile); | |
1173 | goto abort; | |
1174 | } | |
1175 | ||
1176 | preq->slot = get_active_slot(); | |
2264dfa5 TRC |
1177 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); |
1178 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1179 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1180 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1181 | no_pragma_header); | |
1182 | ||
1183 | /* | |
1184 | * If there is data present from a previous transfer attempt, | |
1185 | * resume where it left off | |
1186 | */ | |
1187 | prev_posn = ftell(preq->packfile); | |
1188 | if (prev_posn>0) { | |
1189 | if (http_is_verbose) | |
1190 | fprintf(stderr, | |
1191 | "Resuming fetch of pack %s at byte %ld\n", | |
1192 | sha1_to_hex(target->sha1), prev_posn); | |
1193 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1194 | preq->range_header = curl_slist_append(NULL, range); | |
1195 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1196 | preq->range_header); | |
1197 | } | |
1198 | ||
1199 | return preq; | |
1200 | ||
1201 | abort: | |
bb99190e | 1202 | free(preq->url); |
5ae9ebfd | 1203 | free(preq); |
2264dfa5 TRC |
1204 | return NULL; |
1205 | } | |
5424bc55 TRC |
1206 | |
1207 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1208 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1209 | void *data) |
1210 | { | |
1211 | unsigned char expn[4096]; | |
1212 | size_t size = eltsize * nmemb; | |
1213 | int posn = 0; | |
1214 | struct http_object_request *freq = | |
1215 | (struct http_object_request *)data; | |
1216 | do { | |
1217 | ssize_t retval = xwrite(freq->localfile, | |
1218 | (char *) ptr + posn, size - posn); | |
1219 | if (retval < 0) | |
1220 | return posn; | |
1221 | posn += retval; | |
1222 | } while (posn < size); | |
1223 | ||
1224 | freq->stream.avail_in = size; | |
a04ff3ec | 1225 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1226 | do { |
1227 | freq->stream.next_out = expn; | |
1228 | freq->stream.avail_out = sizeof(expn); | |
1229 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1230 | git_SHA1_Update(&freq->c, expn, | |
1231 | sizeof(expn) - freq->stream.avail_out); | |
1232 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
5424bc55 TRC |
1233 | return size; |
1234 | } | |
1235 | ||
1236 | struct http_object_request *new_http_object_request(const char *base_url, | |
1237 | unsigned char *sha1) | |
1238 | { | |
1239 | char *hex = sha1_to_hex(sha1); | |
1240 | char *filename; | |
1241 | char prevfile[PATH_MAX]; | |
5424bc55 | 1242 | int prevlocal; |
a04ff3ec | 1243 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1244 | ssize_t prev_read = 0; |
1245 | long prev_posn = 0; | |
1246 | char range[RANGE_HEADER_SIZE]; | |
1247 | struct curl_slist *range_header = NULL; | |
1248 | struct http_object_request *freq; | |
1249 | ||
ec99c9a8 | 1250 | freq = xcalloc(1, sizeof(*freq)); |
5424bc55 TRC |
1251 | hashcpy(freq->sha1, sha1); |
1252 | freq->localfile = -1; | |
1253 | ||
1254 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1255 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1256 | "%s.temp", filename); | |
1257 | ||
1258 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1259 | unlink_or_warn(prevfile); | |
1260 | rename(freq->tmpfile, prevfile); | |
1261 | unlink_or_warn(freq->tmpfile); | |
1262 | ||
1263 | if (freq->localfile != -1) | |
1264 | error("fd leakage in start: %d", freq->localfile); | |
1265 | freq->localfile = open(freq->tmpfile, | |
1266 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1267 | /* | |
1268 | * This could have failed due to the "lazy directory creation"; | |
1269 | * try to mkdir the last path component. | |
1270 | */ | |
1271 | if (freq->localfile < 0 && errno == ENOENT) { | |
1272 | char *dir = strrchr(freq->tmpfile, '/'); | |
1273 | if (dir) { | |
1274 | *dir = 0; | |
1275 | mkdir(freq->tmpfile, 0777); | |
1276 | *dir = '/'; | |
1277 | } | |
1278 | freq->localfile = open(freq->tmpfile, | |
1279 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1280 | } | |
1281 | ||
1282 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1283 | error("Couldn't create temporary file %s: %s", |
1284 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1285 | goto abort; |
1286 | } | |
1287 | ||
5424bc55 TRC |
1288 | git_inflate_init(&freq->stream); |
1289 | ||
1290 | git_SHA1_Init(&freq->c); | |
1291 | ||
bb99190e | 1292 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1293 | |
1294 | /* | |
1295 | * If a previous temp file is present, process what was already | |
1296 | * fetched. | |
1297 | */ | |
1298 | prevlocal = open(prevfile, O_RDONLY); | |
1299 | if (prevlocal != -1) { | |
1300 | do { | |
1301 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1302 | if (prev_read>0) { | |
1303 | if (fwrite_sha1_file(prev_buf, | |
1304 | 1, | |
1305 | prev_read, | |
1306 | freq) == prev_read) { | |
1307 | prev_posn += prev_read; | |
1308 | } else { | |
1309 | prev_read = -1; | |
1310 | } | |
1311 | } | |
1312 | } while (prev_read > 0); | |
1313 | close(prevlocal); | |
1314 | } | |
1315 | unlink_or_warn(prevfile); | |
1316 | ||
1317 | /* | |
1318 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1319 | * file; also rewind to the beginning of the local file. | |
1320 | */ | |
1321 | if (prev_read == -1) { | |
1322 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1323 | git_inflate_init(&freq->stream); | |
1324 | git_SHA1_Init(&freq->c); | |
1325 | if (prev_posn>0) { | |
1326 | prev_posn = 0; | |
1327 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1328 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1329 | error("Couldn't truncate temporary file %s: %s", |
1330 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1331 | goto abort; |
1332 | } | |
5424bc55 TRC |
1333 | } |
1334 | } | |
1335 | ||
1336 | freq->slot = get_active_slot(); | |
1337 | ||
1338 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1339 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1340 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1341 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1342 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1343 | ||
1344 | /* | |
1345 | * If we have successfully processed data from a previous fetch | |
1346 | * attempt, only fetch the data we don't already have. | |
1347 | */ | |
1348 | if (prev_posn>0) { | |
1349 | if (http_is_verbose) | |
1350 | fprintf(stderr, | |
1351 | "Resuming fetch of object %s at byte %ld\n", | |
1352 | hex, prev_posn); | |
1353 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1354 | range_header = curl_slist_append(range_header, range); | |
1355 | curl_easy_setopt(freq->slot->curl, | |
1356 | CURLOPT_HTTPHEADER, range_header); | |
1357 | } | |
1358 | ||
1359 | return freq; | |
1360 | ||
5424bc55 | 1361 | abort: |
bb99190e | 1362 | free(freq->url); |
5424bc55 TRC |
1363 | free(freq); |
1364 | return NULL; | |
1365 | } | |
1366 | ||
1367 | void process_http_object_request(struct http_object_request *freq) | |
1368 | { | |
1369 | if (freq->slot == NULL) | |
1370 | return; | |
1371 | freq->curl_result = freq->slot->curl_result; | |
1372 | freq->http_code = freq->slot->http_code; | |
1373 | freq->slot = NULL; | |
1374 | } | |
1375 | ||
1376 | int finish_http_object_request(struct http_object_request *freq) | |
1377 | { | |
1378 | struct stat st; | |
1379 | ||
1380 | close(freq->localfile); | |
1381 | freq->localfile = -1; | |
1382 | ||
1383 | process_http_object_request(freq); | |
1384 | ||
1385 | if (freq->http_code == 416) { | |
bd757c18 | 1386 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1387 | } else if (freq->curl_result != CURLE_OK) { |
1388 | if (stat(freq->tmpfile, &st) == 0) | |
1389 | if (st.st_size == 0) | |
1390 | unlink_or_warn(freq->tmpfile); | |
1391 | return -1; | |
1392 | } | |
1393 | ||
1394 | git_inflate_end(&freq->stream); | |
1395 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1396 | if (freq->zret != Z_STREAM_END) { | |
1397 | unlink_or_warn(freq->tmpfile); | |
1398 | return -1; | |
1399 | } | |
1400 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1401 | unlink_or_warn(freq->tmpfile); | |
1402 | return -1; | |
1403 | } | |
1404 | freq->rename = | |
0da8b2e7 | 1405 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1406 | |
1407 | return freq->rename; | |
1408 | } | |
1409 | ||
1410 | void abort_http_object_request(struct http_object_request *freq) | |
1411 | { | |
1412 | unlink_or_warn(freq->tmpfile); | |
1413 | ||
1414 | release_http_object_request(freq); | |
1415 | } | |
1416 | ||
1417 | void release_http_object_request(struct http_object_request *freq) | |
1418 | { | |
1419 | if (freq->localfile != -1) { | |
1420 | close(freq->localfile); | |
1421 | freq->localfile = -1; | |
1422 | } | |
1423 | if (freq->url != NULL) { | |
1424 | free(freq->url); | |
1425 | freq->url = NULL; | |
1426 | } | |
4b9fa0e3 TRC |
1427 | if (freq->slot != NULL) { |
1428 | freq->slot->callback_func = NULL; | |
1429 | freq->slot->callback_data = NULL; | |
1430 | release_active_slot(freq->slot); | |
1431 | freq->slot = NULL; | |
1432 | } | |
5424bc55 | 1433 | } |