4 int active_requests = 0;
10 #ifndef NO_CURL_EASY_DUPHANDLE
13 char curl_errorstr[CURL_ERROR_SIZE];
15 int curl_ssl_verify = -1;
16 char *ssl_cert = NULL;
17 #if LIBCURL_VERSION_NUM >= 0x070902
20 #if LIBCURL_VERSION_NUM >= 0x070908
21 char *ssl_capath = NULL;
23 char *ssl_cainfo = NULL;
24 long curl_low_speed_limit = -1;
25 long curl_low_speed_time = -1;
27 struct curl_slist *pragma_header;
28 struct curl_slist *no_range_header;
30 struct active_request_slot *active_queue_head = NULL;
32 size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
33 struct buffer *buffer)
35 size_t size = eltsize * nmemb;
36 if (size > buffer->size - buffer->posn)
37 size = buffer->size - buffer->posn;
38 memcpy(ptr, buffer->buffer + buffer->posn, size);
43 size_t fwrite_buffer(const void *ptr, size_t eltsize,
44 size_t nmemb, struct buffer *buffer)
46 size_t size = eltsize * nmemb;
47 if (size > buffer->size - buffer->posn) {
48 buffer->size = buffer->size * 3 / 2;
49 if (buffer->size < buffer->posn + size)
50 buffer->size = buffer->posn + size;
51 buffer->buffer = xrealloc(buffer->buffer, buffer->size);
53 memcpy(buffer->buffer + buffer->posn, ptr, size);
59 size_t fwrite_null(const void *ptr, size_t eltsize,
60 size_t nmemb, struct buffer *buffer)
63 return eltsize * nmemb;
66 static void finish_active_slot(struct active_request_slot *slot);
69 static void process_curl_messages(void)
72 struct active_request_slot *slot;
73 CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages);
75 while (curl_message != NULL) {
76 if (curl_message->msg == CURLMSG_DONE) {
77 int curl_result = curl_message->data.result;
78 slot = active_queue_head;
79 while (slot != NULL &&
80 slot->curl != curl_message->easy_handle)
83 curl_multi_remove_handle(curlm, slot->curl);
84 slot->curl_result = curl_result;
85 finish_active_slot(slot);
87 fprintf(stderr, "Received DONE message for unknown request!\n");
90 fprintf(stderr, "Unknown CURL message received: %d\n",
91 (int)curl_message->msg);
93 curl_message = curl_multi_info_read(curlm, &num_messages);
98 static int http_options(const char *var, const char *value)
100 if (!strcmp("http.sslverify", var)) {
101 if (curl_ssl_verify == -1) {
102 curl_ssl_verify = git_config_bool(var, value);
107 if (!strcmp("http.sslcert", var)) {
108 if (ssl_cert == NULL) {
109 ssl_cert = xmalloc(strlen(value)+1);
110 strcpy(ssl_cert, value);
114 #if LIBCURL_VERSION_NUM >= 0x070902
115 if (!strcmp("http.sslkey", var)) {
116 if (ssl_key == NULL) {
117 ssl_key = xmalloc(strlen(value)+1);
118 strcpy(ssl_key, value);
123 #if LIBCURL_VERSION_NUM >= 0x070908
124 if (!strcmp("http.sslcapath", var)) {
125 if (ssl_capath == NULL) {
126 ssl_capath = xmalloc(strlen(value)+1);
127 strcpy(ssl_capath, value);
132 if (!strcmp("http.sslcainfo", var)) {
133 if (ssl_cainfo == NULL) {
134 ssl_cainfo = xmalloc(strlen(value)+1);
135 strcpy(ssl_cainfo, value);
140 #ifdef USE_CURL_MULTI
141 if (!strcmp("http.maxrequests", var)) {
142 if (max_requests == -1)
143 max_requests = git_config_int(var, value);
148 if (!strcmp("http.lowspeedlimit", var)) {
149 if (curl_low_speed_limit == -1)
150 curl_low_speed_limit = (long)git_config_int(var, value);
153 if (!strcmp("http.lowspeedtime", var)) {
154 if (curl_low_speed_time == -1)
155 curl_low_speed_time = (long)git_config_int(var, value);
159 /* Fall back on the default ones */
160 return git_default_config(var, value);
163 static CURL* get_curl_handle(void)
165 CURL* result = curl_easy_init();
167 curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, curl_ssl_verify);
168 #if LIBCURL_VERSION_NUM >= 0x070907
169 curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
172 if (ssl_cert != NULL)
173 curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
174 #if LIBCURL_VERSION_NUM >= 0x070902
176 curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
178 #if LIBCURL_VERSION_NUM >= 0x070908
179 if (ssl_capath != NULL)
180 curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
182 if (ssl_cainfo != NULL)
183 curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
184 curl_easy_setopt(result, CURLOPT_FAILONERROR, 1);
186 if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
187 curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
188 curl_low_speed_limit);
189 curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME,
190 curl_low_speed_time);
193 curl_easy_setopt(result, CURLOPT_FOLLOWLOCATION, 1);
200 char *low_speed_limit;
201 char *low_speed_time;
203 curl_global_init(CURL_GLOBAL_ALL);
205 pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache");
206 no_range_header = curl_slist_append(no_range_header, "Range:");
208 #ifdef USE_CURL_MULTI
210 char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
211 if (http_max_requests != NULL)
212 max_requests = atoi(http_max_requests);
215 curlm = curl_multi_init();
217 fprintf(stderr, "Error creating curl multi handle.\n");
222 if (getenv("GIT_SSL_NO_VERIFY"))
225 ssl_cert = getenv("GIT_SSL_CERT");
226 #if LIBCURL_VERSION_NUM >= 0x070902
227 ssl_key = getenv("GIT_SSL_KEY");
229 #if LIBCURL_VERSION_NUM >= 0x070908
230 ssl_capath = getenv("GIT_SSL_CAPATH");
232 ssl_cainfo = getenv("GIT_SSL_CAINFO");
234 low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
235 if (low_speed_limit != NULL)
236 curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
237 low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME");
238 if (low_speed_time != NULL)
239 curl_low_speed_time = strtol(low_speed_time, NULL, 10);
241 git_config(http_options);
243 if (curl_ssl_verify == -1)
246 #ifdef USE_CURL_MULTI
247 if (max_requests < 1)
248 max_requests = DEFAULT_MAX_REQUESTS;
251 #ifndef NO_CURL_EASY_DUPHANDLE
252 curl_default = get_curl_handle();
256 void http_cleanup(void)
258 struct active_request_slot *slot = active_queue_head;
259 #ifdef USE_CURL_MULTI
263 while (slot != NULL) {
264 #ifdef USE_CURL_MULTI
266 curl_easy_getinfo(slot->curl,
267 CURLINFO_EFFECTIVE_URL,
269 fprintf(stderr, "Waiting for %s\n", wait_url);
270 run_active_slot(slot);
273 if (slot->curl != NULL)
274 curl_easy_cleanup(slot->curl);
278 #ifndef NO_CURL_EASY_DUPHANDLE
279 curl_easy_cleanup(curl_default);
282 #ifdef USE_CURL_MULTI
283 curl_multi_cleanup(curlm);
285 curl_global_cleanup();
289 struct active_request_slot *get_active_slot(void)
291 struct active_request_slot *slot = active_queue_head;
292 struct active_request_slot *newslot;
294 #ifdef USE_CURL_MULTI
297 /* Wait for a slot to open up if the queue is full */
298 while (active_requests >= max_requests) {
299 curl_multi_perform(curlm, &num_transfers);
300 if (num_transfers < active_requests) {
301 process_curl_messages();
306 while (slot != NULL && slot->in_use) {
310 newslot = xmalloc(sizeof(*newslot));
311 newslot->curl = NULL;
313 newslot->next = NULL;
315 slot = active_queue_head;
317 active_queue_head = newslot;
319 while (slot->next != NULL) {
322 slot->next = newslot;
327 if (slot->curl == NULL) {
328 #ifdef NO_CURL_EASY_DUPHANDLE
329 slot->curl = get_curl_handle();
331 slot->curl = curl_easy_duphandle(curl_default);
338 slot->callback_data = NULL;
339 slot->callback_func = NULL;
340 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
341 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_range_header);
342 curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
347 int start_active_slot(struct active_request_slot *slot)
349 #ifdef USE_CURL_MULTI
350 CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
352 if (curlm_result != CURLM_OK &&
353 curlm_result != CURLM_CALL_MULTI_PERFORM) {
362 #ifdef USE_CURL_MULTI
363 void step_active_slots(void)
366 CURLMcode curlm_result;
369 curlm_result = curl_multi_perform(curlm, &num_transfers);
370 } while (curlm_result == CURLM_CALL_MULTI_PERFORM);
371 if (num_transfers < active_requests) {
372 process_curl_messages();
378 void run_active_slot(struct active_request_slot *slot)
380 #ifdef USE_CURL_MULTI
387 struct timeval select_timeout;
389 while (slot->in_use) {
393 if (!data_received && slot->local != NULL) {
394 current_pos = ftell(slot->local);
395 if (current_pos > last_pos)
397 last_pos = current_pos;
400 if (slot->in_use && !data_received) {
405 select_timeout.tv_sec = 0;
406 select_timeout.tv_usec = 50000;
407 select(max_fd, &readfds, &writefds,
408 &excfds, &select_timeout);
412 while (slot->in_use) {
413 slot->curl_result = curl_easy_perform(slot->curl);
414 finish_active_slot(slot);
419 static void finish_active_slot(struct active_request_slot *slot)
423 curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
425 /* Run callback if appropriate */
426 if (slot->callback_func != NULL) {
427 slot->callback_func(slot->callback_data);
431 void finish_all_active_slots(void)
433 struct active_request_slot *slot = active_queue_head;
437 run_active_slot(slot);
438 slot = active_queue_head;