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#if LIBCURL_VERSION_NUM >= 0x070908
10#define USE_CURL_MULTI
11#define DEFAULT_MAX_REQUESTS 5
12#endif
13
14#if LIBCURL_VERSION_NUM < 0x070704
15#define curl_global_cleanup() do { /* nothing */ } while(0)
16#endif
17#if LIBCURL_VERSION_NUM < 0x070800
18#define curl_global_init(a) do { /* nothing */ } while(0)
19#endif
20
21#if LIBCURL_VERSION_NUM < 0x070c04
22#define NO_CURL_EASY_DUPHANDLE
23#endif
24
25struct slot_results
26{
27 CURLcode curl_result;
28 long http_code;
29};
30
31struct active_request_slot
32{
33 CURL *curl;
34 FILE *local;
35 int in_use;
36 CURLcode curl_result;
37 long http_code;
38 int *finished;
39 struct slot_results *results;
40 void *callback_data;
41 void (*callback_func)(void *data);
42 struct active_request_slot *next;
43};
44
45struct buffer
46{
47 size_t posn;
48 size_t size;
49 void *buffer;
50};
51
52/* Curl request read/write callbacks */
53extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
54 struct buffer *buffer);
55extern size_t fwrite_buffer(const void *ptr, size_t eltsize,
56 size_t nmemb, struct buffer *buffer);
57extern size_t fwrite_null(const void *ptr, size_t eltsize,
58 size_t nmemb, struct buffer *buffer);
59
60/* Slot lifecycle functions */
61extern struct active_request_slot *get_active_slot(void);
62extern int start_active_slot(struct active_request_slot *slot);
63extern void run_active_slot(struct active_request_slot *slot);
64extern void finish_all_active_slots(void);
65extern void release_active_slot(struct active_request_slot *slot);
66
67#ifdef USE_CURL_MULTI
68extern void fill_active_slots(void);
69extern void step_active_slots(void);
70#endif
71
72extern void http_init(void);
73extern void http_cleanup(void);
74
75extern int data_received;
76extern int active_requests;
77
78#ifdef USE_CURL_MULTI
79extern int max_requests;
80extern CURLM *curlm;
81#endif
82#ifndef NO_CURL_EASY_DUPHANDLE
83extern CURL *curl_default;
84#endif
85extern char curl_errorstr[CURL_ERROR_SIZE];
86
87extern int curl_ssl_verify;
88extern char *ssl_cert;
89#if LIBCURL_VERSION_NUM >= 0x070902
90extern char *ssl_key;
91#endif
92#if LIBCURL_VERSION_NUM >= 0x070908
93extern char *ssl_capath;
94#endif
95extern char *ssl_cainfo;
96extern long curl_low_speed_limit;
97extern long curl_low_speed_time;
98
99extern struct curl_slist *pragma_header;
100extern struct curl_slist *no_range_header;
101
102extern struct active_request_slot *active_queue_head;
103
104#endif /* HTTP_H */