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Commit | Line | Data |
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29508e1e | 1 | #include "http.h" |
2264dfa5 | 2 | #include "pack.h" |
de1a2fdd | 3 | #include "sideband.h" |
fe72d420 | 4 | #include "run-command.h" |
f39f72d8 | 5 | #include "url.h" |
29508e1e NH |
6 | |
7 | int data_received; | |
4251ccbd | 8 | int active_requests; |
e9176745 | 9 | int http_is_verbose; |
de1a2fdd | 10 | size_t http_post_buffer = 16 * LARGE_PACKET_MAX; |
29508e1e | 11 | |
b8ac9230 MS |
12 | #if LIBCURL_VERSION_NUM >= 0x070a06 |
13 | #define LIBCURL_CAN_HANDLE_AUTH_ANY | |
14 | #endif | |
15 | ||
ad75ebe5 TRC |
16 | static int min_curl_sessions = 1; |
17 | static int curl_session_count; | |
29508e1e | 18 | #ifdef USE_CURL_MULTI |
cc3530e8 MH |
19 | static int max_requests = -1; |
20 | static CURLM *curlm; | |
29508e1e NH |
21 | #endif |
22 | #ifndef NO_CURL_EASY_DUPHANDLE | |
cc3530e8 | 23 | static CURL *curl_default; |
29508e1e | 24 | #endif |
5424bc55 TRC |
25 | |
26 | #define PREV_BUF_SIZE 4096 | |
27 | #define RANGE_HEADER_SIZE 30 | |
28 | ||
29508e1e NH |
29 | char curl_errorstr[CURL_ERROR_SIZE]; |
30 | ||
cc3530e8 | 31 | static int curl_ssl_verify = -1; |
4251ccbd | 32 | static const char *ssl_cert; |
ef52aafa | 33 | #if LIBCURL_VERSION_NUM >= 0x070903 |
4251ccbd | 34 | static const char *ssl_key; |
29508e1e NH |
35 | #endif |
36 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
4251ccbd | 37 | static const char *ssl_capath; |
29508e1e | 38 | #endif |
4251ccbd | 39 | static const char *ssl_cainfo; |
cc3530e8 MH |
40 | static long curl_low_speed_limit = -1; |
41 | static long curl_low_speed_time = -1; | |
4251ccbd JH |
42 | static int curl_ftp_no_epsv; |
43 | static const char *curl_http_proxy; | |
bcfb95dd | 44 | static const char *curl_cookie_file; |
070b4dd5 | 45 | static char *user_name, *user_pass, *description; |
b1d1058c | 46 | static const char *user_agent; |
29508e1e | 47 | |
30dd9163 ML |
48 | #if LIBCURL_VERSION_NUM >= 0x071700 |
49 | /* Use CURLOPT_KEYPASSWD as is */ | |
50 | #elif LIBCURL_VERSION_NUM >= 0x070903 | |
51 | #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD | |
52 | #else | |
53 | #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD | |
54 | #endif | |
55 | ||
56 | static char *ssl_cert_password; | |
57 | static int ssl_cert_password_required; | |
58 | ||
cc3530e8 | 59 | static struct curl_slist *pragma_header; |
5424bc55 | 60 | static struct curl_slist *no_pragma_header; |
e9176745 | 61 | |
4251ccbd | 62 | static struct active_request_slot *active_queue_head; |
29508e1e | 63 | |
a04ff3ec | 64 | size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
65 | { |
66 | size_t size = eltsize * nmemb; | |
f444e528 JH |
67 | struct buffer *buffer = buffer_; |
68 | ||
028c2976 MH |
69 | if (size > buffer->buf.len - buffer->posn) |
70 | size = buffer->buf.len - buffer->posn; | |
71 | memcpy(ptr, buffer->buf.buf + buffer->posn, size); | |
29508e1e | 72 | buffer->posn += size; |
028c2976 | 73 | |
29508e1e NH |
74 | return size; |
75 | } | |
76 | ||
3944ba0c MS |
77 | #ifndef NO_CURL_IOCTL |
78 | curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp) | |
79 | { | |
80 | struct buffer *buffer = clientp; | |
81 | ||
82 | switch (cmd) { | |
83 | case CURLIOCMD_NOP: | |
84 | return CURLIOE_OK; | |
85 | ||
86 | case CURLIOCMD_RESTARTREAD: | |
87 | buffer->posn = 0; | |
88 | return CURLIOE_OK; | |
89 | ||
90 | default: | |
91 | return CURLIOE_UNKNOWNCMD; | |
92 | } | |
93 | } | |
94 | #endif | |
95 | ||
a04ff3ec | 96 | size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_) |
29508e1e NH |
97 | { |
98 | size_t size = eltsize * nmemb; | |
f444e528 JH |
99 | struct strbuf *buffer = buffer_; |
100 | ||
028c2976 | 101 | strbuf_add(buffer, ptr, size); |
29508e1e NH |
102 | data_received++; |
103 | return size; | |
104 | } | |
105 | ||
a04ff3ec | 106 | size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf) |
29508e1e NH |
107 | { |
108 | data_received++; | |
109 | return eltsize * nmemb; | |
110 | } | |
111 | ||
29508e1e NH |
112 | #ifdef USE_CURL_MULTI |
113 | static void process_curl_messages(void) | |
114 | { | |
115 | int num_messages; | |
116 | struct active_request_slot *slot; | |
117 | CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages); | |
118 | ||
119 | while (curl_message != NULL) { | |
120 | if (curl_message->msg == CURLMSG_DONE) { | |
121 | int curl_result = curl_message->data.result; | |
122 | slot = active_queue_head; | |
123 | while (slot != NULL && | |
124 | slot->curl != curl_message->easy_handle) | |
125 | slot = slot->next; | |
126 | if (slot != NULL) { | |
127 | curl_multi_remove_handle(curlm, slot->curl); | |
128 | slot->curl_result = curl_result; | |
129 | finish_active_slot(slot); | |
130 | } else { | |
131 | fprintf(stderr, "Received DONE message for unknown request!\n"); | |
132 | } | |
133 | } else { | |
134 | fprintf(stderr, "Unknown CURL message received: %d\n", | |
135 | (int)curl_message->msg); | |
136 | } | |
137 | curl_message = curl_multi_info_read(curlm, &num_messages); | |
138 | } | |
139 | } | |
140 | #endif | |
141 | ||
070b4dd5 MG |
142 | static char *git_getpass_with_description(const char *what, const char *desc) |
143 | { | |
144 | struct strbuf prompt = STRBUF_INIT; | |
145 | char *r; | |
146 | ||
147 | if (desc) | |
148 | strbuf_addf(&prompt, "%s for '%s': ", what, desc); | |
149 | else | |
150 | strbuf_addf(&prompt, "%s: ", what); | |
151 | /* | |
152 | * NEEDSWORK: for usernames, we should do something less magical that | |
153 | * actually echoes the characters. However, we need to read from | |
154 | * /dev/tty and not stdio, which is not portable (but getpass will do | |
155 | * it for us). http.c uses the same workaround. | |
156 | */ | |
157 | r = git_getpass(prompt.buf); | |
158 | ||
159 | strbuf_release(&prompt); | |
160 | return xstrdup(r); | |
161 | } | |
162 | ||
ef90d6d4 | 163 | static int http_options(const char *var, const char *value, void *cb) |
29508e1e NH |
164 | { |
165 | if (!strcmp("http.sslverify", var)) { | |
7059cd99 | 166 | curl_ssl_verify = git_config_bool(var, value); |
29508e1e NH |
167 | return 0; |
168 | } | |
7059cd99 JH |
169 | if (!strcmp("http.sslcert", var)) |
170 | return git_config_string(&ssl_cert, var, value); | |
ef52aafa | 171 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 JH |
172 | if (!strcmp("http.sslkey", var)) |
173 | return git_config_string(&ssl_key, var, value); | |
29508e1e NH |
174 | #endif |
175 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 JH |
176 | if (!strcmp("http.sslcapath", var)) |
177 | return git_config_string(&ssl_capath, var, value); | |
29508e1e | 178 | #endif |
7059cd99 JH |
179 | if (!strcmp("http.sslcainfo", var)) |
180 | return git_config_string(&ssl_cainfo, var, value); | |
754ae192 ML |
181 | if (!strcmp("http.sslcertpasswordprotected", var)) { |
182 | if (git_config_bool(var, value)) | |
183 | ssl_cert_password_required = 1; | |
184 | return 0; | |
185 | } | |
ad75ebe5 TRC |
186 | if (!strcmp("http.minsessions", var)) { |
187 | min_curl_sessions = git_config_int(var, value); | |
188 | #ifndef USE_CURL_MULTI | |
189 | if (min_curl_sessions > 1) | |
190 | min_curl_sessions = 1; | |
191 | #endif | |
192 | return 0; | |
193 | } | |
a6080a0a | 194 | #ifdef USE_CURL_MULTI |
29508e1e | 195 | if (!strcmp("http.maxrequests", var)) { |
7059cd99 | 196 | max_requests = git_config_int(var, value); |
29508e1e NH |
197 | return 0; |
198 | } | |
199 | #endif | |
29508e1e | 200 | if (!strcmp("http.lowspeedlimit", var)) { |
7059cd99 | 201 | curl_low_speed_limit = (long)git_config_int(var, value); |
29508e1e NH |
202 | return 0; |
203 | } | |
204 | if (!strcmp("http.lowspeedtime", var)) { | |
7059cd99 | 205 | curl_low_speed_time = (long)git_config_int(var, value); |
29508e1e NH |
206 | return 0; |
207 | } | |
208 | ||
3ea099d4 SK |
209 | if (!strcmp("http.noepsv", var)) { |
210 | curl_ftp_no_epsv = git_config_bool(var, value); | |
211 | return 0; | |
212 | } | |
7059cd99 JH |
213 | if (!strcmp("http.proxy", var)) |
214 | return git_config_string(&curl_http_proxy, var, value); | |
3ea099d4 | 215 | |
bcfb95dd DB |
216 | if (!strcmp("http.cookiefile", var)) |
217 | return git_config_string(&curl_cookie_file, var, value); | |
218 | ||
de1a2fdd SP |
219 | if (!strcmp("http.postbuffer", var)) { |
220 | http_post_buffer = git_config_int(var, value); | |
221 | if (http_post_buffer < LARGE_PACKET_MAX) | |
222 | http_post_buffer = LARGE_PACKET_MAX; | |
223 | return 0; | |
224 | } | |
225 | ||
b1d1058c SO |
226 | if (!strcmp("http.useragent", var)) |
227 | return git_config_string(&user_agent, var, value); | |
228 | ||
29508e1e | 229 | /* Fall back on the default ones */ |
ef90d6d4 | 230 | return git_default_config(var, value, cb); |
29508e1e NH |
231 | } |
232 | ||
c33976cb JH |
233 | static void init_curl_http_auth(CURL *result) |
234 | { | |
750d9305 | 235 | if (user_name) { |
c33976cb JH |
236 | struct strbuf up = STRBUF_INIT; |
237 | if (!user_pass) | |
070b4dd5 | 238 | user_pass = xstrdup(git_getpass_with_description("Password", description)); |
c33976cb JH |
239 | strbuf_addf(&up, "%s:%s", user_name, user_pass); |
240 | curl_easy_setopt(result, CURLOPT_USERPWD, | |
241 | strbuf_detach(&up, NULL)); | |
242 | } | |
243 | } | |
244 | ||
30dd9163 ML |
245 | static int has_cert_password(void) |
246 | { | |
247 | if (ssl_cert_password != NULL) | |
248 | return 1; | |
249 | if (ssl_cert == NULL || ssl_cert_password_required != 1) | |
250 | return 0; | |
251 | /* Only prompt the user once. */ | |
252 | ssl_cert_password_required = -1; | |
070b4dd5 | 253 | ssl_cert_password = git_getpass_with_description("Certificate Password", description); |
30dd9163 ML |
254 | if (ssl_cert_password != NULL) { |
255 | ssl_cert_password = xstrdup(ssl_cert_password); | |
256 | return 1; | |
257 | } else | |
258 | return 0; | |
259 | } | |
260 | ||
4251ccbd | 261 | static CURL *get_curl_handle(void) |
11979b98 | 262 | { |
4251ccbd | 263 | CURL *result = curl_easy_init(); |
11979b98 | 264 | |
a5ccc597 JH |
265 | if (!curl_ssl_verify) { |
266 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 0); | |
267 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 0); | |
268 | } else { | |
269 | /* Verify authenticity of the peer's certificate */ | |
270 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, 1); | |
271 | /* The name in the cert must match whom we tried to connect */ | |
272 | curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2); | |
273 | } | |
274 | ||
11979b98 JH |
275 | #if LIBCURL_VERSION_NUM >= 0x070907 |
276 | curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL); | |
277 | #endif | |
b8ac9230 | 278 | #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY |
525ecd26 | 279 | curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY); |
b8ac9230 | 280 | #endif |
11979b98 | 281 | |
c33976cb JH |
282 | init_curl_http_auth(result); |
283 | ||
11979b98 JH |
284 | if (ssl_cert != NULL) |
285 | curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert); | |
30dd9163 ML |
286 | if (has_cert_password()) |
287 | curl_easy_setopt(result, CURLOPT_KEYPASSWD, ssl_cert_password); | |
ef52aafa | 288 | #if LIBCURL_VERSION_NUM >= 0x070903 |
11979b98 JH |
289 | if (ssl_key != NULL) |
290 | curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key); | |
291 | #endif | |
292 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
293 | if (ssl_capath != NULL) | |
294 | curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath); | |
295 | #endif | |
296 | if (ssl_cainfo != NULL) | |
297 | curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo); | |
298 | curl_easy_setopt(result, CURLOPT_FAILONERROR, 1); | |
299 | ||
300 | if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) { | |
301 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT, | |
302 | curl_low_speed_limit); | |
303 | curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME, | |
304 | curl_low_speed_time); | |
305 | } | |
306 | ||
307 | curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1); | |
311e2ea0 TRC |
308 | #if LIBCURL_VERSION_NUM >= 0x071301 |
309 | curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL); | |
310 | #elif LIBCURL_VERSION_NUM >= 0x071101 | |
311 | curl_easy_setopt(result, CURLOPT_POST301, 1); | |
312 | #endif | |
11979b98 | 313 | |
7982d74e MW |
314 | if (getenv("GIT_CURL_VERBOSE")) |
315 | curl_easy_setopt(result, CURLOPT_VERBOSE, 1); | |
316 | ||
b1d1058c SO |
317 | curl_easy_setopt(result, CURLOPT_USERAGENT, |
318 | user_agent ? user_agent : GIT_HTTP_USER_AGENT); | |
20fc9bc5 | 319 | |
3ea099d4 SK |
320 | if (curl_ftp_no_epsv) |
321 | curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0); | |
322 | ||
9c5665aa SV |
323 | if (curl_http_proxy) |
324 | curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy); | |
325 | ||
11979b98 JH |
326 | return result; |
327 | } | |
328 | ||
c33976cb JH |
329 | static void http_auth_init(const char *url) |
330 | { | |
070b4dd5 | 331 | const char *at, *colon, *cp, *slash, *host; |
c33976cb JH |
332 | |
333 | cp = strstr(url, "://"); | |
334 | if (!cp) | |
335 | return; | |
336 | ||
337 | /* | |
338 | * Ok, the URL looks like "proto://something". Which one? | |
339 | * "proto://<user>:<pass>@<host>/...", | |
340 | * "proto://<user>@<host>/...", or just | |
341 | * "proto://<host>/..."? | |
342 | */ | |
343 | cp += 3; | |
344 | at = strchr(cp, '@'); | |
345 | colon = strchr(cp, ':'); | |
346 | slash = strchrnul(cp, '/'); | |
070b4dd5 MG |
347 | if (!at || slash <= at) { |
348 | /* No credentials, but we may have to ask for some later */ | |
349 | host = cp; | |
350 | } | |
351 | else if (!colon || at <= colon) { | |
c33976cb | 352 | /* Only username */ |
66c84485 | 353 | user_name = url_decode_mem(cp, at - cp); |
c33976cb | 354 | user_pass = NULL; |
070b4dd5 | 355 | host = at + 1; |
c33976cb | 356 | } else { |
66c84485 JK |
357 | user_name = url_decode_mem(cp, colon - cp); |
358 | user_pass = url_decode_mem(colon + 1, at - (colon + 1)); | |
070b4dd5 | 359 | host = at + 1; |
c33976cb | 360 | } |
070b4dd5 MG |
361 | |
362 | description = url_decode_mem(host, slash - host); | |
c33976cb JH |
363 | } |
364 | ||
7059cd99 JH |
365 | static void set_from_env(const char **var, const char *envname) |
366 | { | |
367 | const char *val = getenv(envname); | |
368 | if (val) | |
369 | *var = val; | |
370 | } | |
371 | ||
9fc6440d | 372 | void http_init(struct remote *remote) |
29508e1e NH |
373 | { |
374 | char *low_speed_limit; | |
375 | char *low_speed_time; | |
376 | ||
e9176745 TRC |
377 | http_is_verbose = 0; |
378 | ||
7059cd99 JH |
379 | git_config(http_options, NULL); |
380 | ||
29508e1e NH |
381 | curl_global_init(CURL_GLOBAL_ALL); |
382 | ||
9fc6440d MH |
383 | if (remote && remote->http_proxy) |
384 | curl_http_proxy = xstrdup(remote->http_proxy); | |
385 | ||
29508e1e | 386 | pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache"); |
e9176745 | 387 | no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:"); |
29508e1e NH |
388 | |
389 | #ifdef USE_CURL_MULTI | |
390 | { | |
391 | char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS"); | |
392 | if (http_max_requests != NULL) | |
393 | max_requests = atoi(http_max_requests); | |
394 | } | |
395 | ||
396 | curlm = curl_multi_init(); | |
397 | if (curlm == NULL) { | |
398 | fprintf(stderr, "Error creating curl multi handle.\n"); | |
399 | exit(1); | |
400 | } | |
401 | #endif | |
402 | ||
403 | if (getenv("GIT_SSL_NO_VERIFY")) | |
404 | curl_ssl_verify = 0; | |
405 | ||
7059cd99 | 406 | set_from_env(&ssl_cert, "GIT_SSL_CERT"); |
ef52aafa | 407 | #if LIBCURL_VERSION_NUM >= 0x070903 |
7059cd99 | 408 | set_from_env(&ssl_key, "GIT_SSL_KEY"); |
29508e1e NH |
409 | #endif |
410 | #if LIBCURL_VERSION_NUM >= 0x070908 | |
7059cd99 | 411 | set_from_env(&ssl_capath, "GIT_SSL_CAPATH"); |
29508e1e | 412 | #endif |
7059cd99 | 413 | set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO"); |
29508e1e | 414 | |
b1d1058c SO |
415 | set_from_env(&user_agent, "GIT_HTTP_USER_AGENT"); |
416 | ||
29508e1e NH |
417 | low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT"); |
418 | if (low_speed_limit != NULL) | |
419 | curl_low_speed_limit = strtol(low_speed_limit, NULL, 10); | |
420 | low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME"); | |
421 | if (low_speed_time != NULL) | |
422 | curl_low_speed_time = strtol(low_speed_time, NULL, 10); | |
423 | ||
29508e1e NH |
424 | if (curl_ssl_verify == -1) |
425 | curl_ssl_verify = 1; | |
426 | ||
ad75ebe5 | 427 | curl_session_count = 0; |
29508e1e NH |
428 | #ifdef USE_CURL_MULTI |
429 | if (max_requests < 1) | |
430 | max_requests = DEFAULT_MAX_REQUESTS; | |
431 | #endif | |
432 | ||
3ea099d4 SK |
433 | if (getenv("GIT_CURL_FTP_NO_EPSV")) |
434 | curl_ftp_no_epsv = 1; | |
435 | ||
30dd9163 | 436 | if (remote && remote->url && remote->url[0]) { |
c33976cb | 437 | http_auth_init(remote->url[0]); |
754ae192 ML |
438 | if (!ssl_cert_password_required && |
439 | getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") && | |
440 | !prefixcmp(remote->url[0], "https://")) | |
30dd9163 ML |
441 | ssl_cert_password_required = 1; |
442 | } | |
c33976cb | 443 | |
29508e1e NH |
444 | #ifndef NO_CURL_EASY_DUPHANDLE |
445 | curl_default = get_curl_handle(); | |
446 | #endif | |
447 | } | |
448 | ||
449 | void http_cleanup(void) | |
450 | { | |
451 | struct active_request_slot *slot = active_queue_head; | |
29508e1e NH |
452 | |
453 | while (slot != NULL) { | |
3278cd0a | 454 | struct active_request_slot *next = slot->next; |
f23d1f76 | 455 | if (slot->curl != NULL) { |
29508e1e | 456 | #ifdef USE_CURL_MULTI |
f23d1f76 | 457 | curl_multi_remove_handle(curlm, slot->curl); |
29508e1e | 458 | #endif |
29508e1e | 459 | curl_easy_cleanup(slot->curl); |
f23d1f76 | 460 | } |
3278cd0a SP |
461 | free(slot); |
462 | slot = next; | |
29508e1e | 463 | } |
3278cd0a | 464 | active_queue_head = NULL; |
29508e1e NH |
465 | |
466 | #ifndef NO_CURL_EASY_DUPHANDLE | |
467 | curl_easy_cleanup(curl_default); | |
468 | #endif | |
469 | ||
470 | #ifdef USE_CURL_MULTI | |
471 | curl_multi_cleanup(curlm); | |
472 | #endif | |
473 | curl_global_cleanup(); | |
b3ca4e4e NH |
474 | |
475 | curl_slist_free_all(pragma_header); | |
3278cd0a | 476 | pragma_header = NULL; |
9fc6440d | 477 | |
e9176745 TRC |
478 | curl_slist_free_all(no_pragma_header); |
479 | no_pragma_header = NULL; | |
480 | ||
9fc6440d | 481 | if (curl_http_proxy) { |
e4a80ecf | 482 | free((void *)curl_http_proxy); |
9fc6440d MH |
483 | curl_http_proxy = NULL; |
484 | } | |
30dd9163 ML |
485 | |
486 | if (ssl_cert_password != NULL) { | |
487 | memset(ssl_cert_password, 0, strlen(ssl_cert_password)); | |
488 | free(ssl_cert_password); | |
489 | ssl_cert_password = NULL; | |
490 | } | |
491 | ssl_cert_password_required = 0; | |
29508e1e NH |
492 | } |
493 | ||
29508e1e NH |
494 | struct active_request_slot *get_active_slot(void) |
495 | { | |
496 | struct active_request_slot *slot = active_queue_head; | |
497 | struct active_request_slot *newslot; | |
498 | ||
499 | #ifdef USE_CURL_MULTI | |
500 | int num_transfers; | |
501 | ||
502 | /* Wait for a slot to open up if the queue is full */ | |
503 | while (active_requests >= max_requests) { | |
504 | curl_multi_perform(curlm, &num_transfers); | |
4251ccbd | 505 | if (num_transfers < active_requests) |
29508e1e | 506 | process_curl_messages(); |
29508e1e NH |
507 | } |
508 | #endif | |
509 | ||
4251ccbd | 510 | while (slot != NULL && slot->in_use) |
29508e1e | 511 | slot = slot->next; |
4251ccbd | 512 | |
29508e1e NH |
513 | if (slot == NULL) { |
514 | newslot = xmalloc(sizeof(*newslot)); | |
515 | newslot->curl = NULL; | |
516 | newslot->in_use = 0; | |
517 | newslot->next = NULL; | |
518 | ||
519 | slot = active_queue_head; | |
520 | if (slot == NULL) { | |
521 | active_queue_head = newslot; | |
522 | } else { | |
4251ccbd | 523 | while (slot->next != NULL) |
29508e1e | 524 | slot = slot->next; |
29508e1e NH |
525 | slot->next = newslot; |
526 | } | |
527 | slot = newslot; | |
528 | } | |
529 | ||
530 | if (slot->curl == NULL) { | |
531 | #ifdef NO_CURL_EASY_DUPHANDLE | |
532 | slot->curl = get_curl_handle(); | |
533 | #else | |
534 | slot->curl = curl_easy_duphandle(curl_default); | |
535 | #endif | |
ad75ebe5 | 536 | curl_session_count++; |
29508e1e NH |
537 | } |
538 | ||
539 | active_requests++; | |
540 | slot->in_use = 1; | |
541 | slot->local = NULL; | |
c8568e13 | 542 | slot->results = NULL; |
baa7b67d | 543 | slot->finished = NULL; |
29508e1e NH |
544 | slot->callback_data = NULL; |
545 | slot->callback_func = NULL; | |
bcfb95dd | 546 | curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file); |
29508e1e | 547 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header); |
29508e1e | 548 | curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr); |
9094950d NH |
549 | curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL); |
550 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, NULL); | |
551 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, NULL); | |
1e41827d | 552 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL); |
9094950d NH |
553 | curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0); |
554 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
29508e1e NH |
555 | |
556 | return slot; | |
557 | } | |
558 | ||
559 | int start_active_slot(struct active_request_slot *slot) | |
560 | { | |
561 | #ifdef USE_CURL_MULTI | |
562 | CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl); | |
45c17412 | 563 | int num_transfers; |
29508e1e NH |
564 | |
565 | if (curlm_result != CURLM_OK && | |
566 | curlm_result != CURLM_CALL_MULTI_PERFORM) { | |
567 | active_requests--; | |
568 | slot->in_use = 0; | |
569 | return 0; | |
570 | } | |
45c17412 DB |
571 | |
572 | /* | |
573 | * We know there must be something to do, since we just added | |
574 | * something. | |
575 | */ | |
576 | curl_multi_perform(curlm, &num_transfers); | |
29508e1e NH |
577 | #endif |
578 | return 1; | |
579 | } | |
580 | ||
581 | #ifdef USE_CURL_MULTI | |
fc57b6aa DB |
582 | struct fill_chain { |
583 | void *data; | |
584 | int (*fill)(void *); | |
585 | struct fill_chain *next; | |
586 | }; | |
587 | ||
4251ccbd | 588 | static struct fill_chain *fill_cfg; |
fc57b6aa DB |
589 | |
590 | void add_fill_function(void *data, int (*fill)(void *)) | |
591 | { | |
e8eec71d | 592 | struct fill_chain *new = xmalloc(sizeof(*new)); |
fc57b6aa DB |
593 | struct fill_chain **linkp = &fill_cfg; |
594 | new->data = data; | |
595 | new->fill = fill; | |
596 | new->next = NULL; | |
597 | while (*linkp) | |
598 | linkp = &(*linkp)->next; | |
599 | *linkp = new; | |
600 | } | |
601 | ||
45c17412 DB |
602 | void fill_active_slots(void) |
603 | { | |
604 | struct active_request_slot *slot = active_queue_head; | |
605 | ||
fc57b6aa DB |
606 | while (active_requests < max_requests) { |
607 | struct fill_chain *fill; | |
608 | for (fill = fill_cfg; fill; fill = fill->next) | |
609 | if (fill->fill(fill->data)) | |
610 | break; | |
611 | ||
612 | if (!fill) | |
45c17412 | 613 | break; |
fc57b6aa | 614 | } |
45c17412 DB |
615 | |
616 | while (slot != NULL) { | |
ad75ebe5 TRC |
617 | if (!slot->in_use && slot->curl != NULL |
618 | && curl_session_count > min_curl_sessions) { | |
45c17412 DB |
619 | curl_easy_cleanup(slot->curl); |
620 | slot->curl = NULL; | |
ad75ebe5 | 621 | curl_session_count--; |
45c17412 DB |
622 | } |
623 | slot = slot->next; | |
624 | } | |
625 | } | |
626 | ||
29508e1e NH |
627 | void step_active_slots(void) |
628 | { | |
629 | int num_transfers; | |
630 | CURLMcode curlm_result; | |
631 | ||
632 | do { | |
633 | curlm_result = curl_multi_perform(curlm, &num_transfers); | |
634 | } while (curlm_result == CURLM_CALL_MULTI_PERFORM); | |
635 | if (num_transfers < active_requests) { | |
636 | process_curl_messages(); | |
637 | fill_active_slots(); | |
638 | } | |
639 | } | |
640 | #endif | |
641 | ||
642 | void run_active_slot(struct active_request_slot *slot) | |
643 | { | |
644 | #ifdef USE_CURL_MULTI | |
645 | long last_pos = 0; | |
646 | long current_pos; | |
647 | fd_set readfds; | |
648 | fd_set writefds; | |
649 | fd_set excfds; | |
650 | int max_fd; | |
651 | struct timeval select_timeout; | |
baa7b67d | 652 | int finished = 0; |
29508e1e | 653 | |
baa7b67d NH |
654 | slot->finished = &finished; |
655 | while (!finished) { | |
29508e1e NH |
656 | data_received = 0; |
657 | step_active_slots(); | |
658 | ||
659 | if (!data_received && slot->local != NULL) { | |
660 | current_pos = ftell(slot->local); | |
661 | if (current_pos > last_pos) | |
662 | data_received++; | |
663 | last_pos = current_pos; | |
664 | } | |
665 | ||
666 | if (slot->in_use && !data_received) { | |
667 | max_fd = 0; | |
668 | FD_ZERO(&readfds); | |
669 | FD_ZERO(&writefds); | |
670 | FD_ZERO(&excfds); | |
671 | select_timeout.tv_sec = 0; | |
672 | select_timeout.tv_usec = 50000; | |
673 | select(max_fd, &readfds, &writefds, | |
674 | &excfds, &select_timeout); | |
675 | } | |
676 | } | |
677 | #else | |
678 | while (slot->in_use) { | |
679 | slot->curl_result = curl_easy_perform(slot->curl); | |
680 | finish_active_slot(slot); | |
681 | } | |
682 | #endif | |
683 | } | |
684 | ||
53f31389 | 685 | static void closedown_active_slot(struct active_request_slot *slot) |
29508e1e | 686 | { |
028c2976 MH |
687 | active_requests--; |
688 | slot->in_use = 0; | |
53f31389 MW |
689 | } |
690 | ||
83e41e2e | 691 | static void release_active_slot(struct active_request_slot *slot) |
53f31389 MW |
692 | { |
693 | closedown_active_slot(slot); | |
ad75ebe5 | 694 | if (slot->curl && curl_session_count > min_curl_sessions) { |
b3ca4e4e | 695 | #ifdef USE_CURL_MULTI |
53f31389 | 696 | curl_multi_remove_handle(curlm, slot->curl); |
b3ca4e4e | 697 | #endif |
53f31389 MW |
698 | curl_easy_cleanup(slot->curl); |
699 | slot->curl = NULL; | |
ad75ebe5 | 700 | curl_session_count--; |
53f31389 | 701 | } |
b3ca4e4e | 702 | #ifdef USE_CURL_MULTI |
53f31389 | 703 | fill_active_slots(); |
b3ca4e4e | 704 | #endif |
53f31389 MW |
705 | } |
706 | ||
de1a2fdd | 707 | void finish_active_slot(struct active_request_slot *slot) |
53f31389 MW |
708 | { |
709 | closedown_active_slot(slot); | |
028c2976 | 710 | curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code); |
c8568e13 | 711 | |
baa7b67d NH |
712 | if (slot->finished != NULL) |
713 | (*slot->finished) = 1; | |
714 | ||
c8568e13 NH |
715 | /* Store slot results so they can be read after the slot is reused */ |
716 | if (slot->results != NULL) { | |
717 | slot->results->curl_result = slot->curl_result; | |
718 | slot->results->http_code = slot->http_code; | |
719 | } | |
720 | ||
028c2976 | 721 | /* Run callback if appropriate */ |
4251ccbd | 722 | if (slot->callback_func != NULL) |
028c2976 | 723 | slot->callback_func(slot->callback_data); |
29508e1e NH |
724 | } |
725 | ||
726 | void finish_all_active_slots(void) | |
727 | { | |
728 | struct active_request_slot *slot = active_queue_head; | |
729 | ||
730 | while (slot != NULL) | |
731 | if (slot->in_use) { | |
732 | run_active_slot(slot); | |
733 | slot = active_queue_head; | |
734 | } else { | |
735 | slot = slot->next; | |
736 | } | |
737 | } | |
d7e92806 | 738 | |
5ace994f | 739 | /* Helpers for modifying and creating URLs */ |
d7e92806 MH |
740 | static inline int needs_quote(int ch) |
741 | { | |
742 | if (((ch >= 'A') && (ch <= 'Z')) | |
743 | || ((ch >= 'a') && (ch <= 'z')) | |
744 | || ((ch >= '0') && (ch <= '9')) | |
745 | || (ch == '/') | |
746 | || (ch == '-') | |
747 | || (ch == '.')) | |
748 | return 0; | |
749 | return 1; | |
750 | } | |
751 | ||
752 | static inline int hex(int v) | |
753 | { | |
4251ccbd JH |
754 | if (v < 10) |
755 | return '0' + v; | |
756 | else | |
757 | return 'A' + v - 10; | |
d7e92806 MH |
758 | } |
759 | ||
760 | static char *quote_ref_url(const char *base, const char *ref) | |
761 | { | |
113106e0 | 762 | struct strbuf buf = STRBUF_INIT; |
d7e92806 | 763 | const char *cp; |
113106e0 | 764 | int ch; |
d7e92806 | 765 | |
5ace994f | 766 | end_url_with_slash(&buf, base); |
113106e0 TRC |
767 | |
768 | for (cp = ref; (ch = *cp) != 0; cp++) | |
d7e92806 | 769 | if (needs_quote(ch)) |
113106e0 | 770 | strbuf_addf(&buf, "%%%02x", ch); |
d7e92806 | 771 | else |
113106e0 | 772 | strbuf_addch(&buf, *cp); |
d7e92806 | 773 | |
113106e0 | 774 | return strbuf_detach(&buf, NULL); |
d7e92806 MH |
775 | } |
776 | ||
5424bc55 TRC |
777 | void append_remote_object_url(struct strbuf *buf, const char *url, |
778 | const char *hex, | |
779 | int only_two_digit_prefix) | |
780 | { | |
800324c3 TRC |
781 | end_url_with_slash(buf, url); |
782 | ||
783 | strbuf_addf(buf, "objects/%.*s/", 2, hex); | |
5424bc55 TRC |
784 | if (!only_two_digit_prefix) |
785 | strbuf_addf(buf, "%s", hex+2); | |
786 | } | |
787 | ||
788 | char *get_remote_object_url(const char *url, const char *hex, | |
789 | int only_two_digit_prefix) | |
790 | { | |
791 | struct strbuf buf = STRBUF_INIT; | |
792 | append_remote_object_url(&buf, url, hex, only_two_digit_prefix); | |
793 | return strbuf_detach(&buf, NULL); | |
794 | } | |
795 | ||
e929cd20 MH |
796 | /* http_request() targets */ |
797 | #define HTTP_REQUEST_STRBUF 0 | |
798 | #define HTTP_REQUEST_FILE 1 | |
799 | ||
800 | static int http_request(const char *url, void *result, int target, int options) | |
801 | { | |
802 | struct active_request_slot *slot; | |
803 | struct slot_results results; | |
804 | struct curl_slist *headers = NULL; | |
805 | struct strbuf buf = STRBUF_INIT; | |
806 | int ret; | |
807 | ||
808 | slot = get_active_slot(); | |
809 | slot->results = &results; | |
810 | curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); | |
811 | ||
812 | if (result == NULL) { | |
813 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1); | |
814 | } else { | |
815 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); | |
816 | curl_easy_setopt(slot->curl, CURLOPT_FILE, result); | |
817 | ||
818 | if (target == HTTP_REQUEST_FILE) { | |
819 | long posn = ftell(result); | |
820 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
821 | fwrite); | |
822 | if (posn > 0) { | |
823 | strbuf_addf(&buf, "Range: bytes=%ld-", posn); | |
824 | headers = curl_slist_append(headers, buf.buf); | |
825 | strbuf_reset(&buf); | |
826 | } | |
827 | slot->local = result; | |
828 | } else | |
829 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, | |
830 | fwrite_buffer); | |
831 | } | |
832 | ||
833 | strbuf_addstr(&buf, "Pragma:"); | |
834 | if (options & HTTP_NO_CACHE) | |
835 | strbuf_addstr(&buf, " no-cache"); | |
836 | ||
837 | headers = curl_slist_append(headers, buf.buf); | |
838 | ||
839 | curl_easy_setopt(slot->curl, CURLOPT_URL, url); | |
840 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
841 | ||
842 | if (start_active_slot(slot)) { | |
843 | run_active_slot(slot); | |
844 | if (results.curl_result == CURLE_OK) | |
845 | ret = HTTP_OK; | |
846 | else if (missing_target(&results)) | |
847 | ret = HTTP_MISSING_TARGET; | |
42653c09 SC |
848 | else if (results.http_code == 401) { |
849 | if (user_name) { | |
850 | ret = HTTP_NOAUTH; | |
851 | } else { | |
852 | /* | |
853 | * git_getpass is needed here because its very likely stdin/stdout are | |
854 | * pipes to our parent process. So we instead need to use /dev/tty, | |
855 | * but that is non-portable. Using git_getpass() can at least be stubbed | |
856 | * on other platforms with a different implementation if/when necessary. | |
857 | */ | |
070b4dd5 | 858 | user_name = xstrdup(git_getpass_with_description("Username", description)); |
42653c09 SC |
859 | init_curl_http_auth(slot->curl); |
860 | ret = HTTP_REAUTH; | |
861 | } | |
862 | } else | |
e929cd20 MH |
863 | ret = HTTP_ERROR; |
864 | } else { | |
865 | error("Unable to start HTTP request for %s", url); | |
866 | ret = HTTP_START_FAILED; | |
867 | } | |
868 | ||
869 | slot->local = NULL; | |
870 | curl_slist_free_all(headers); | |
871 | strbuf_release(&buf); | |
872 | ||
873 | return ret; | |
874 | } | |
875 | ||
8d677edc JK |
876 | static int http_request_reauth(const char *url, void *result, int target, |
877 | int options) | |
878 | { | |
879 | int ret = http_request(url, result, target, options); | |
880 | if (ret != HTTP_REAUTH) | |
881 | return ret; | |
882 | return http_request(url, result, target, options); | |
883 | } | |
884 | ||
e929cd20 MH |
885 | int http_get_strbuf(const char *url, struct strbuf *result, int options) |
886 | { | |
8d677edc | 887 | return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options); |
e929cd20 MH |
888 | } |
889 | ||
83e41e2e JH |
890 | /* |
891 | * Downloads an url and stores the result in the given file. | |
892 | * | |
893 | * If a previous interrupted download is detected (i.e. a previous temporary | |
894 | * file is still around) the download is resumed. | |
895 | */ | |
896 | static int http_get_file(const char *url, const char *filename, int options) | |
e929cd20 MH |
897 | { |
898 | int ret; | |
899 | struct strbuf tmpfile = STRBUF_INIT; | |
900 | FILE *result; | |
901 | ||
902 | strbuf_addf(&tmpfile, "%s.temp", filename); | |
903 | result = fopen(tmpfile.buf, "a"); | |
904 | if (! result) { | |
905 | error("Unable to open local file %s", tmpfile.buf); | |
906 | ret = HTTP_ERROR; | |
907 | goto cleanup; | |
908 | } | |
909 | ||
8d677edc | 910 | ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options); |
e929cd20 MH |
911 | fclose(result); |
912 | ||
913 | if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename)) | |
914 | ret = HTTP_ERROR; | |
915 | cleanup: | |
916 | strbuf_release(&tmpfile); | |
917 | return ret; | |
918 | } | |
919 | ||
920 | int http_error(const char *url, int ret) | |
921 | { | |
922 | /* http_request has already handled HTTP_START_FAILED. */ | |
923 | if (ret != HTTP_START_FAILED) | |
924 | error("%s while accessing %s\n", curl_errorstr, url); | |
925 | ||
926 | return ret; | |
927 | } | |
928 | ||
c13b2633 | 929 | int http_fetch_ref(const char *base, struct ref *ref) |
d7e92806 MH |
930 | { |
931 | char *url; | |
932 | struct strbuf buffer = STRBUF_INIT; | |
0d5896e1 | 933 | int ret = -1; |
d7e92806 | 934 | |
c13b2633 | 935 | url = quote_ref_url(base, ref->name); |
0d5896e1 MH |
936 | if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) { |
937 | strbuf_rtrim(&buffer); | |
938 | if (buffer.len == 40) | |
939 | ret = get_sha1_hex(buffer.buf, ref->old_sha1); | |
940 | else if (!prefixcmp(buffer.buf, "ref: ")) { | |
941 | ref->symref = xstrdup(buffer.buf + 5); | |
942 | ret = 0; | |
d7e92806 | 943 | } |
d7e92806 MH |
944 | } |
945 | ||
946 | strbuf_release(&buffer); | |
947 | free(url); | |
948 | return ret; | |
949 | } | |
b8caac2b TRC |
950 | |
951 | /* Helpers for fetching packs */ | |
750ef425 | 952 | static char *fetch_pack_index(unsigned char *sha1, const char *base_url) |
b8caac2b | 953 | { |
750ef425 | 954 | char *url, *tmp; |
b8caac2b | 955 | struct strbuf buf = STRBUF_INIT; |
b8caac2b | 956 | |
b8caac2b | 957 | if (http_is_verbose) |
162eb5f8 | 958 | fprintf(stderr, "Getting index for pack %s\n", sha1_to_hex(sha1)); |
b8caac2b TRC |
959 | |
960 | end_url_with_slash(&buf, base_url); | |
162eb5f8 | 961 | strbuf_addf(&buf, "objects/pack/pack-%s.idx", sha1_to_hex(sha1)); |
b8caac2b TRC |
962 | url = strbuf_detach(&buf, NULL); |
963 | ||
750ef425 SP |
964 | strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1)); |
965 | tmp = strbuf_detach(&buf, NULL); | |
966 | ||
967 | if (http_get_file(url, tmp, 0) != HTTP_OK) { | |
968 | error("Unable to get pack index %s\n", url); | |
969 | free(tmp); | |
970 | tmp = NULL; | |
971 | } | |
b8caac2b | 972 | |
b8caac2b | 973 | free(url); |
750ef425 | 974 | return tmp; |
b8caac2b TRC |
975 | } |
976 | ||
977 | static int fetch_and_setup_pack_index(struct packed_git **packs_head, | |
978 | unsigned char *sha1, const char *base_url) | |
979 | { | |
980 | struct packed_git *new_pack; | |
750ef425 SP |
981 | char *tmp_idx = NULL; |
982 | int ret; | |
b8caac2b | 983 | |
750ef425 SP |
984 | if (has_pack_index(sha1)) { |
985 | new_pack = parse_pack_index(sha1, NULL); | |
986 | if (!new_pack) | |
987 | return -1; /* parse_pack_index() already issued error message */ | |
988 | goto add_pack; | |
989 | } | |
990 | ||
991 | tmp_idx = fetch_pack_index(sha1, base_url); | |
992 | if (!tmp_idx) | |
b8caac2b TRC |
993 | return -1; |
994 | ||
750ef425 SP |
995 | new_pack = parse_pack_index(sha1, tmp_idx); |
996 | if (!new_pack) { | |
997 | unlink(tmp_idx); | |
998 | free(tmp_idx); | |
999 | ||
b8caac2b | 1000 | return -1; /* parse_pack_index() already issued error message */ |
750ef425 SP |
1001 | } |
1002 | ||
1003 | ret = verify_pack_index(new_pack); | |
1004 | if (!ret) { | |
1005 | close_pack_index(new_pack); | |
1006 | ret = move_temp_to_file(tmp_idx, sha1_pack_index_name(sha1)); | |
1007 | } | |
1008 | free(tmp_idx); | |
1009 | if (ret) | |
1010 | return -1; | |
1011 | ||
1012 | add_pack: | |
b8caac2b TRC |
1013 | new_pack->next = *packs_head; |
1014 | *packs_head = new_pack; | |
1015 | return 0; | |
1016 | } | |
1017 | ||
1018 | int http_get_info_packs(const char *base_url, struct packed_git **packs_head) | |
1019 | { | |
1020 | int ret = 0, i = 0; | |
1021 | char *url, *data; | |
1022 | struct strbuf buf = STRBUF_INIT; | |
1023 | unsigned char sha1[20]; | |
1024 | ||
1025 | end_url_with_slash(&buf, base_url); | |
1026 | strbuf_addstr(&buf, "objects/info/packs"); | |
1027 | url = strbuf_detach(&buf, NULL); | |
1028 | ||
1029 | ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE); | |
1030 | if (ret != HTTP_OK) | |
1031 | goto cleanup; | |
1032 | ||
1033 | data = buf.buf; | |
1034 | while (i < buf.len) { | |
1035 | switch (data[i]) { | |
1036 | case 'P': | |
1037 | i++; | |
1038 | if (i + 52 <= buf.len && | |
1039 | !prefixcmp(data + i, " pack-") && | |
1040 | !prefixcmp(data + i + 46, ".pack\n")) { | |
1041 | get_sha1_hex(data + i + 6, sha1); | |
1042 | fetch_and_setup_pack_index(packs_head, sha1, | |
1043 | base_url); | |
1044 | i += 51; | |
1045 | break; | |
1046 | } | |
1047 | default: | |
1048 | while (i < buf.len && data[i] != '\n') | |
1049 | i++; | |
1050 | } | |
1051 | i++; | |
1052 | } | |
1053 | ||
1054 | cleanup: | |
1055 | free(url); | |
1056 | return ret; | |
1057 | } | |
2264dfa5 TRC |
1058 | |
1059 | void release_http_pack_request(struct http_pack_request *preq) | |
1060 | { | |
1061 | if (preq->packfile != NULL) { | |
1062 | fclose(preq->packfile); | |
1063 | preq->packfile = NULL; | |
1064 | preq->slot->local = NULL; | |
1065 | } | |
1066 | if (preq->range_header != NULL) { | |
1067 | curl_slist_free_all(preq->range_header); | |
1068 | preq->range_header = NULL; | |
1069 | } | |
1070 | preq->slot = NULL; | |
1071 | free(preq->url); | |
1072 | } | |
1073 | ||
1074 | int finish_http_pack_request(struct http_pack_request *preq) | |
1075 | { | |
2264dfa5 | 1076 | struct packed_git **lst; |
021ab6f0 | 1077 | struct packed_git *p = preq->target; |
fe72d420 SP |
1078 | char *tmp_idx; |
1079 | struct child_process ip; | |
1080 | const char *ip_argv[8]; | |
2264dfa5 | 1081 | |
fe72d420 | 1082 | close_pack_index(p); |
2264dfa5 | 1083 | |
3065274c SP |
1084 | fclose(preq->packfile); |
1085 | preq->packfile = NULL; | |
1086 | preq->slot->local = NULL; | |
2264dfa5 TRC |
1087 | |
1088 | lst = preq->lst; | |
021ab6f0 | 1089 | while (*lst != p) |
2264dfa5 TRC |
1090 | lst = &((*lst)->next); |
1091 | *lst = (*lst)->next; | |
1092 | ||
fe72d420 SP |
1093 | tmp_idx = xstrdup(preq->tmpfile); |
1094 | strcpy(tmp_idx + strlen(tmp_idx) - strlen(".pack.temp"), | |
1095 | ".idx.temp"); | |
1096 | ||
1097 | ip_argv[0] = "index-pack"; | |
1098 | ip_argv[1] = "-o"; | |
1099 | ip_argv[2] = tmp_idx; | |
1100 | ip_argv[3] = preq->tmpfile; | |
1101 | ip_argv[4] = NULL; | |
1102 | ||
1103 | memset(&ip, 0, sizeof(ip)); | |
1104 | ip.argv = ip_argv; | |
1105 | ip.git_cmd = 1; | |
1106 | ip.no_stdin = 1; | |
1107 | ip.no_stdout = 1; | |
1108 | ||
1109 | if (run_command(&ip)) { | |
1110 | unlink(preq->tmpfile); | |
1111 | unlink(tmp_idx); | |
1112 | free(tmp_idx); | |
2264dfa5 | 1113 | return -1; |
fe72d420 SP |
1114 | } |
1115 | ||
1116 | unlink(sha1_pack_index_name(p->sha1)); | |
2264dfa5 | 1117 | |
fe72d420 SP |
1118 | if (move_temp_to_file(preq->tmpfile, sha1_pack_name(p->sha1)) |
1119 | || move_temp_to_file(tmp_idx, sha1_pack_index_name(p->sha1))) { | |
1120 | free(tmp_idx); | |
2264dfa5 | 1121 | return -1; |
fe72d420 | 1122 | } |
2264dfa5 | 1123 | |
fe72d420 SP |
1124 | install_packed_git(p); |
1125 | free(tmp_idx); | |
2264dfa5 TRC |
1126 | return 0; |
1127 | } | |
1128 | ||
1129 | struct http_pack_request *new_http_pack_request( | |
1130 | struct packed_git *target, const char *base_url) | |
1131 | { | |
2264dfa5 TRC |
1132 | long prev_posn = 0; |
1133 | char range[RANGE_HEADER_SIZE]; | |
1134 | struct strbuf buf = STRBUF_INIT; | |
1135 | struct http_pack_request *preq; | |
1136 | ||
1137 | preq = xmalloc(sizeof(*preq)); | |
1138 | preq->target = target; | |
1139 | preq->range_header = NULL; | |
1140 | ||
1141 | end_url_with_slash(&buf, base_url); | |
1142 | strbuf_addf(&buf, "objects/pack/pack-%s.pack", | |
1143 | sha1_to_hex(target->sha1)); | |
bb99190e | 1144 | preq->url = strbuf_detach(&buf, NULL); |
2264dfa5 | 1145 | |
90d05713 TRC |
1146 | snprintf(preq->tmpfile, sizeof(preq->tmpfile), "%s.temp", |
1147 | sha1_pack_name(target->sha1)); | |
2264dfa5 TRC |
1148 | preq->packfile = fopen(preq->tmpfile, "a"); |
1149 | if (!preq->packfile) { | |
1150 | error("Unable to open local file %s for pack", | |
1151 | preq->tmpfile); | |
1152 | goto abort; | |
1153 | } | |
1154 | ||
1155 | preq->slot = get_active_slot(); | |
1156 | preq->slot->local = preq->packfile; | |
1157 | curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile); | |
1158 | curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite); | |
bb99190e | 1159 | curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url); |
2264dfa5 TRC |
1160 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, |
1161 | no_pragma_header); | |
1162 | ||
1163 | /* | |
1164 | * If there is data present from a previous transfer attempt, | |
1165 | * resume where it left off | |
1166 | */ | |
1167 | prev_posn = ftell(preq->packfile); | |
1168 | if (prev_posn>0) { | |
1169 | if (http_is_verbose) | |
1170 | fprintf(stderr, | |
1171 | "Resuming fetch of pack %s at byte %ld\n", | |
1172 | sha1_to_hex(target->sha1), prev_posn); | |
1173 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1174 | preq->range_header = curl_slist_append(NULL, range); | |
1175 | curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER, | |
1176 | preq->range_header); | |
1177 | } | |
1178 | ||
1179 | return preq; | |
1180 | ||
1181 | abort: | |
bb99190e | 1182 | free(preq->url); |
5ae9ebfd | 1183 | free(preq); |
2264dfa5 TRC |
1184 | return NULL; |
1185 | } | |
5424bc55 TRC |
1186 | |
1187 | /* Helpers for fetching objects (loose) */ | |
a04ff3ec | 1188 | static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb, |
5424bc55 TRC |
1189 | void *data) |
1190 | { | |
1191 | unsigned char expn[4096]; | |
1192 | size_t size = eltsize * nmemb; | |
1193 | int posn = 0; | |
1194 | struct http_object_request *freq = | |
1195 | (struct http_object_request *)data; | |
1196 | do { | |
1197 | ssize_t retval = xwrite(freq->localfile, | |
1198 | (char *) ptr + posn, size - posn); | |
1199 | if (retval < 0) | |
1200 | return posn; | |
1201 | posn += retval; | |
1202 | } while (posn < size); | |
1203 | ||
1204 | freq->stream.avail_in = size; | |
a04ff3ec | 1205 | freq->stream.next_in = (void *)ptr; |
5424bc55 TRC |
1206 | do { |
1207 | freq->stream.next_out = expn; | |
1208 | freq->stream.avail_out = sizeof(expn); | |
1209 | freq->zret = git_inflate(&freq->stream, Z_SYNC_FLUSH); | |
1210 | git_SHA1_Update(&freq->c, expn, | |
1211 | sizeof(expn) - freq->stream.avail_out); | |
1212 | } while (freq->stream.avail_in && freq->zret == Z_OK); | |
1213 | data_received++; | |
1214 | return size; | |
1215 | } | |
1216 | ||
1217 | struct http_object_request *new_http_object_request(const char *base_url, | |
1218 | unsigned char *sha1) | |
1219 | { | |
1220 | char *hex = sha1_to_hex(sha1); | |
1221 | char *filename; | |
1222 | char prevfile[PATH_MAX]; | |
5424bc55 | 1223 | int prevlocal; |
a04ff3ec | 1224 | char prev_buf[PREV_BUF_SIZE]; |
5424bc55 TRC |
1225 | ssize_t prev_read = 0; |
1226 | long prev_posn = 0; | |
1227 | char range[RANGE_HEADER_SIZE]; | |
1228 | struct curl_slist *range_header = NULL; | |
1229 | struct http_object_request *freq; | |
1230 | ||
1231 | freq = xmalloc(sizeof(*freq)); | |
1232 | hashcpy(freq->sha1, sha1); | |
1233 | freq->localfile = -1; | |
1234 | ||
1235 | filename = sha1_file_name(sha1); | |
5424bc55 TRC |
1236 | snprintf(freq->tmpfile, sizeof(freq->tmpfile), |
1237 | "%s.temp", filename); | |
1238 | ||
1239 | snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); | |
1240 | unlink_or_warn(prevfile); | |
1241 | rename(freq->tmpfile, prevfile); | |
1242 | unlink_or_warn(freq->tmpfile); | |
1243 | ||
1244 | if (freq->localfile != -1) | |
1245 | error("fd leakage in start: %d", freq->localfile); | |
1246 | freq->localfile = open(freq->tmpfile, | |
1247 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1248 | /* | |
1249 | * This could have failed due to the "lazy directory creation"; | |
1250 | * try to mkdir the last path component. | |
1251 | */ | |
1252 | if (freq->localfile < 0 && errno == ENOENT) { | |
1253 | char *dir = strrchr(freq->tmpfile, '/'); | |
1254 | if (dir) { | |
1255 | *dir = 0; | |
1256 | mkdir(freq->tmpfile, 0777); | |
1257 | *dir = '/'; | |
1258 | } | |
1259 | freq->localfile = open(freq->tmpfile, | |
1260 | O_WRONLY | O_CREAT | O_EXCL, 0666); | |
1261 | } | |
1262 | ||
1263 | if (freq->localfile < 0) { | |
0da8b2e7 SP |
1264 | error("Couldn't create temporary file %s: %s", |
1265 | freq->tmpfile, strerror(errno)); | |
5424bc55 TRC |
1266 | goto abort; |
1267 | } | |
1268 | ||
1269 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1270 | ||
1271 | git_inflate_init(&freq->stream); | |
1272 | ||
1273 | git_SHA1_Init(&freq->c); | |
1274 | ||
bb99190e | 1275 | freq->url = get_remote_object_url(base_url, hex, 0); |
5424bc55 TRC |
1276 | |
1277 | /* | |
1278 | * If a previous temp file is present, process what was already | |
1279 | * fetched. | |
1280 | */ | |
1281 | prevlocal = open(prevfile, O_RDONLY); | |
1282 | if (prevlocal != -1) { | |
1283 | do { | |
1284 | prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE); | |
1285 | if (prev_read>0) { | |
1286 | if (fwrite_sha1_file(prev_buf, | |
1287 | 1, | |
1288 | prev_read, | |
1289 | freq) == prev_read) { | |
1290 | prev_posn += prev_read; | |
1291 | } else { | |
1292 | prev_read = -1; | |
1293 | } | |
1294 | } | |
1295 | } while (prev_read > 0); | |
1296 | close(prevlocal); | |
1297 | } | |
1298 | unlink_or_warn(prevfile); | |
1299 | ||
1300 | /* | |
1301 | * Reset inflate/SHA1 if there was an error reading the previous temp | |
1302 | * file; also rewind to the beginning of the local file. | |
1303 | */ | |
1304 | if (prev_read == -1) { | |
1305 | memset(&freq->stream, 0, sizeof(freq->stream)); | |
1306 | git_inflate_init(&freq->stream); | |
1307 | git_SHA1_Init(&freq->c); | |
1308 | if (prev_posn>0) { | |
1309 | prev_posn = 0; | |
1310 | lseek(freq->localfile, 0, SEEK_SET); | |
0c4f21e4 | 1311 | if (ftruncate(freq->localfile, 0) < 0) { |
0da8b2e7 SP |
1312 | error("Couldn't truncate temporary file %s: %s", |
1313 | freq->tmpfile, strerror(errno)); | |
0c4f21e4 JL |
1314 | goto abort; |
1315 | } | |
5424bc55 TRC |
1316 | } |
1317 | } | |
1318 | ||
1319 | freq->slot = get_active_slot(); | |
1320 | ||
1321 | curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq); | |
1322 | curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); | |
1323 | curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr); | |
bb99190e | 1324 | curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url); |
5424bc55 TRC |
1325 | curl_easy_setopt(freq->slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); |
1326 | ||
1327 | /* | |
1328 | * If we have successfully processed data from a previous fetch | |
1329 | * attempt, only fetch the data we don't already have. | |
1330 | */ | |
1331 | if (prev_posn>0) { | |
1332 | if (http_is_verbose) | |
1333 | fprintf(stderr, | |
1334 | "Resuming fetch of object %s at byte %ld\n", | |
1335 | hex, prev_posn); | |
1336 | sprintf(range, "Range: bytes=%ld-", prev_posn); | |
1337 | range_header = curl_slist_append(range_header, range); | |
1338 | curl_easy_setopt(freq->slot->curl, | |
1339 | CURLOPT_HTTPHEADER, range_header); | |
1340 | } | |
1341 | ||
1342 | return freq; | |
1343 | ||
5424bc55 TRC |
1344 | abort: |
1345 | free(filename); | |
bb99190e | 1346 | free(freq->url); |
5424bc55 TRC |
1347 | free(freq); |
1348 | return NULL; | |
1349 | } | |
1350 | ||
1351 | void process_http_object_request(struct http_object_request *freq) | |
1352 | { | |
1353 | if (freq->slot == NULL) | |
1354 | return; | |
1355 | freq->curl_result = freq->slot->curl_result; | |
1356 | freq->http_code = freq->slot->http_code; | |
1357 | freq->slot = NULL; | |
1358 | } | |
1359 | ||
1360 | int finish_http_object_request(struct http_object_request *freq) | |
1361 | { | |
1362 | struct stat st; | |
1363 | ||
1364 | close(freq->localfile); | |
1365 | freq->localfile = -1; | |
1366 | ||
1367 | process_http_object_request(freq); | |
1368 | ||
1369 | if (freq->http_code == 416) { | |
bd757c18 | 1370 | warning("requested range invalid; we may already have all the data."); |
5424bc55 TRC |
1371 | } else if (freq->curl_result != CURLE_OK) { |
1372 | if (stat(freq->tmpfile, &st) == 0) | |
1373 | if (st.st_size == 0) | |
1374 | unlink_or_warn(freq->tmpfile); | |
1375 | return -1; | |
1376 | } | |
1377 | ||
1378 | git_inflate_end(&freq->stream); | |
1379 | git_SHA1_Final(freq->real_sha1, &freq->c); | |
1380 | if (freq->zret != Z_STREAM_END) { | |
1381 | unlink_or_warn(freq->tmpfile); | |
1382 | return -1; | |
1383 | } | |
1384 | if (hashcmp(freq->sha1, freq->real_sha1)) { | |
1385 | unlink_or_warn(freq->tmpfile); | |
1386 | return -1; | |
1387 | } | |
1388 | freq->rename = | |
0da8b2e7 | 1389 | move_temp_to_file(freq->tmpfile, sha1_file_name(freq->sha1)); |
5424bc55 TRC |
1390 | |
1391 | return freq->rename; | |
1392 | } | |
1393 | ||
1394 | void abort_http_object_request(struct http_object_request *freq) | |
1395 | { | |
1396 | unlink_or_warn(freq->tmpfile); | |
1397 | ||
1398 | release_http_object_request(freq); | |
1399 | } | |
1400 | ||
1401 | void release_http_object_request(struct http_object_request *freq) | |
1402 | { | |
1403 | if (freq->localfile != -1) { | |
1404 | close(freq->localfile); | |
1405 | freq->localfile = -1; | |
1406 | } | |
1407 | if (freq->url != NULL) { | |
1408 | free(freq->url); | |
1409 | freq->url = NULL; | |
1410 | } | |
4b9fa0e3 TRC |
1411 | if (freq->slot != NULL) { |
1412 | freq->slot->callback_func = NULL; | |
1413 | freq->slot->callback_data = NULL; | |
1414 | release_active_slot(freq->slot); | |
1415 | freq->slot = NULL; | |
1416 | } | |
5424bc55 | 1417 | } |