14 * We detect based on the cURL version if multi-transfer is
15 * usable in this implementation and define this symbol accordingly.
16 * This is not something Makefile should set nor users should pass
21 #if LIBCURL_VERSION_NUM >= 0x071000
22 #define USE_CURL_MULTI
23 #define DEFAULT_MAX_REQUESTS 5
26 #if LIBCURL_VERSION_NUM < 0x070704
27 #define curl_global_cleanup() do { /* nothing */ } while (0)
29 #if LIBCURL_VERSION_NUM < 0x070800
30 #define curl_global_init(a) do { /* nothing */ } while (0)
33 #if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000)
34 #define NO_CURL_EASY_DUPHANDLE
37 #if LIBCURL_VERSION_NUM < 0x070a03
38 #define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND
41 #if LIBCURL_VERSION_NUM < 0x070c03
46 * CURLOPT_USE_SSL was known as CURLOPT_FTP_SSL up to 7.16.4,
47 * and the constants were known as CURLFTPSSL_*
49 #if !defined(CURLOPT_USE_SSL) && defined(CURLOPT_FTP_SSL)
50 #define CURLOPT_USE_SSL CURLOPT_FTP_SSL
51 #define CURLUSESSL_TRY CURLFTPSSL_TRY
60 struct active_request_slot {
66 struct slot_results *results;
68 void (*callback_func)(void *data);
69 struct active_request_slot *next;
77 /* Curl request read/write callbacks */
78 extern size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf);
79 extern size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf);
80 extern size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf);
82 extern curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp);
85 /* Slot lifecycle functions */
86 extern struct active_request_slot *get_active_slot(void);
87 extern int start_active_slot(struct active_request_slot *slot);
88 extern void run_active_slot(struct active_request_slot *slot);
89 extern void finish_active_slot(struct active_request_slot *slot);
90 extern void finish_all_active_slots(void);
91 extern int handle_curl_result(struct slot_results *results);
94 * This will run one slot to completion in a blocking manner, similar to how
95 * curl_easy_perform would work (but we don't want to use that, because
96 * we do not want to intermingle calls to curl_multi and curl_easy).
99 int run_one_slot(struct active_request_slot *slot,
100 struct slot_results *results);
102 #ifdef USE_CURL_MULTI
103 extern void fill_active_slots(void);
104 extern void add_fill_function(void *data, int (*fill)(void *));
105 extern void step_active_slots(void);
108 extern void http_init(struct remote *remote, const char *url,
110 extern void http_cleanup(void);
112 extern int active_requests;
113 extern int http_is_verbose;
114 extern size_t http_post_buffer;
115 extern struct credential http_auth;
117 extern char curl_errorstr[CURL_ERROR_SIZE];
119 static inline int missing__target(int code, int result)
121 return /* file:// URL -- do we ever use one??? */
122 (result == CURLE_FILE_COULDNT_READ_FILE) ||
123 /* http:// and https:// URL */
124 (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) ||
126 (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE)
130 #define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
132 /* Helpers for modifying and creating URLs */
133 extern void append_remote_object_url(struct strbuf *buf, const char *url,
135 int only_two_digit_prefix);
136 extern char *get_remote_object_url(const char *url, const char *hex,
137 int only_two_digit_prefix);
139 /* Options for http_get_*() */
140 struct http_get_options {
144 /* If non-NULL, returns the content-type of the response. */
145 struct strbuf *content_type;
148 * If non-NULL, returns the URL we ended up at, including any
149 * redirects we followed.
151 struct strbuf *effective_url;
154 * If both base_url and effective_url are non-NULL, the base URL will
155 * be munged to reflect any redirections going from the requested url
156 * to effective_url. See the definition of update_url_from_redirect
159 struct strbuf *base_url;
162 /* Return values for http_get_*() */
164 #define HTTP_MISSING_TARGET 1
166 #define HTTP_START_FAILED 3
167 #define HTTP_REAUTH 4
168 #define HTTP_NOAUTH 5
171 * Requests a URL and stores the result in a strbuf.
173 * If the result pointer is NULL, a HTTP HEAD request is made instead of GET.
175 int http_get_strbuf(const char *url, struct strbuf *result, struct http_get_options *options);
177 extern int http_fetch_ref(const char *base, struct ref *ref);
179 /* Helpers for fetching packs */
180 extern int http_get_info_packs(const char *base_url,
181 struct packed_git **packs_head);
183 struct http_pack_request {
185 struct packed_git *target;
186 struct packed_git **lst;
188 char tmpfile[PATH_MAX];
189 struct curl_slist *range_header;
190 struct active_request_slot *slot;
193 extern struct http_pack_request *new_http_pack_request(
194 struct packed_git *target, const char *base_url);
195 extern int finish_http_pack_request(struct http_pack_request *preq);
196 extern void release_http_pack_request(struct http_pack_request *preq);
198 /* Helpers for fetching object */
199 struct http_object_request {
201 char tmpfile[PATH_MAX];
203 CURLcode curl_result;
204 char errorstr[CURL_ERROR_SIZE];
206 unsigned char sha1[20];
207 unsigned char real_sha1[20];
212 struct active_request_slot *slot;
215 extern struct http_object_request *new_http_object_request(
216 const char *base_url, unsigned char *sha1);
217 extern void process_http_object_request(struct http_object_request *freq);
218 extern int finish_http_object_request(struct http_object_request *freq);
219 extern void abort_http_object_request(struct http_object_request *freq);
220 extern void release_http_object_request(struct http_object_request *freq);