http: create function end_url_with_slash
[git/git.git] / http.h
1 #ifndef HTTP_H
2 #define HTTP_H
3
4 #include "cache.h"
5
6 #include <curl/curl.h>
7 #include <curl/easy.h>
8
9 #include "strbuf.h"
10 #include "remote.h"
11
12 /*
13 * We detect based on the cURL version if multi-transfer is
14 * usable in this implementation and define this symbol accordingly.
15 * This is not something Makefile should set nor users should pass
16 * via CFLAGS.
17 */
18 #undef USE_CURL_MULTI
19
20 #if LIBCURL_VERSION_NUM >= 0x071000
21 #define USE_CURL_MULTI
22 #define DEFAULT_MAX_REQUESTS 5
23 #endif
24
25 #if LIBCURL_VERSION_NUM < 0x070704
26 #define curl_global_cleanup() do { /* nothing */ } while(0)
27 #endif
28 #if LIBCURL_VERSION_NUM < 0x070800
29 #define curl_global_init(a) do { /* nothing */ } while(0)
30 #endif
31
32 #if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000)
33 #define NO_CURL_EASY_DUPHANDLE
34 #endif
35
36 #if LIBCURL_VERSION_NUM < 0x070a03
37 #define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND
38 #endif
39
40 #if LIBCURL_VERSION_NUM < 0x070c03
41 #define NO_CURL_IOCTL
42 #endif
43
44 struct slot_results
45 {
46 CURLcode curl_result;
47 long http_code;
48 };
49
50 struct active_request_slot
51 {
52 CURL *curl;
53 FILE *local;
54 int in_use;
55 CURLcode curl_result;
56 long http_code;
57 int *finished;
58 struct slot_results *results;
59 void *callback_data;
60 void (*callback_func)(void *data);
61 struct active_request_slot *next;
62 };
63
64 struct buffer
65 {
66 struct strbuf buf;
67 size_t posn;
68 };
69
70 /* Curl request read/write callbacks */
71 extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
72 extern size_t fwrite_buffer(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
73 extern size_t fwrite_null(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
74 #ifndef NO_CURL_IOCTL
75 extern curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp);
76 #endif
77
78 /* Slot lifecycle functions */
79 extern struct active_request_slot *get_active_slot(void);
80 extern int start_active_slot(struct active_request_slot *slot);
81 extern void run_active_slot(struct active_request_slot *slot);
82 extern void finish_all_active_slots(void);
83 extern void release_active_slot(struct active_request_slot *slot);
84
85 #ifdef USE_CURL_MULTI
86 extern void fill_active_slots(void);
87 extern void add_fill_function(void *data, int (*fill)(void *));
88 extern void step_active_slots(void);
89 #endif
90
91 extern struct curl_slist *no_pragma_header;
92
93 #define RANGE_HEADER_SIZE 30
94
95 extern void http_init(struct remote *remote);
96 extern void http_cleanup(void);
97
98 extern int data_received;
99 extern int active_requests;
100 extern int http_is_verbose;
101
102 extern char curl_errorstr[CURL_ERROR_SIZE];
103
104 static inline int missing__target(int code, int result)
105 {
106 return /* file:// URL -- do we ever use one??? */
107 (result == CURLE_FILE_COULDNT_READ_FILE) ||
108 /* http:// and https:// URL */
109 (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) ||
110 /* ftp:// URL */
111 (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE)
112 ;
113 }
114
115 #define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
116
117 extern int http_fetch_ref(const char *base, struct ref *ref);
118
119 #endif /* HTTP_H */