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 #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
  25 struct slot_results
  26 {
  27         CURLcode curl_result;
  28         long http_code;
  29 };
  30
  31 struct active_request_slot
  32 {
  33         CURL *curl;
  34         FILE *local;
  35         int in_use;
  36         CURLcode curl_result;
  37         long http_code;
  38         struct slot_results *results;
  39         void *callback_data;
  40         void (*callback_func)(void *data);
  41         struct active_request_slot *next;
  42 };
  43
  44 struct buffer
  45 {
  46         size_t posn;
  47         size_t size;
  48         void *buffer;
  49 };
  50
  51 /* Curl request read/write callbacks */
  52 extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
  53                            struct buffer *buffer);
  54 extern size_t fwrite_buffer(const void *ptr, size_t eltsize,
  55                             size_t nmemb, struct buffer *buffer);
  56 extern size_t fwrite_null(const void *ptr, size_t eltsize,
  57                           size_t nmemb, struct buffer *buffer);
  58
  59 /* Slot lifecycle functions */
  60 extern struct active_request_slot *get_active_slot(void);
  61 extern int start_active_slot(struct active_request_slot *slot);
  62 extern void run_active_slot(struct active_request_slot *slot);
  63 extern void finish_all_active_slots(void);
  64
  65 #ifdef USE_CURL_MULTI
  66 extern void fill_active_slots(void);
  67 extern void step_active_slots(void);
  68 #endif
  69
  70 extern void http_init(void);
  71 extern void http_cleanup(void);
  72
  73 extern int data_received;
  74 extern int active_requests;
  75
  76 #ifdef USE_CURL_MULTI
  77 extern int max_requests;
  78 extern CURLM *curlm;
  79 #endif
  80 #ifndef NO_CURL_EASY_DUPHANDLE
  81 extern CURL *curl_default;
  82 #endif
  83 extern char curl_errorstr[CURL_ERROR_SIZE];
  84
  85 extern int curl_ssl_verify;
  86 extern char *ssl_cert;
  87 #if LIBCURL_VERSION_NUM >= 0x070902
  88 extern char *ssl_key;
  89 #endif
  90 #if LIBCURL_VERSION_NUM >= 0x070908
  91 extern char *ssl_capath;
  92 #endif
  93 extern char *ssl_cainfo;
  94 extern long curl_low_speed_limit;
  95 extern long curl_low_speed_time;
  96
  97 extern struct curl_slist *pragma_header;
  98 extern struct curl_slist *no_range_header;
  99
 100 extern struct active_request_slot *active_queue_head;
 101
 102 #endif /* HTTP_H */