/*
 * This file Copyright (C) Mnemosyne LLC
 *
 * This file is licensed by the GPL version 2. Works owned by the
 * Transmission project are granted a special exemption to clause 2(b)
 * so that the bulk of its code can remain under the MIT license.
 * This exemption does not extend to derived works not owned by
 * the Transmission project.
 *
 * $Id: web.h 12539 2011-07-10 15:24:51Z jordan $
 */

#ifndef TR_HTTP_H
#define TR_HTTP_H

#include <curl/curl.h>

#ifdef __cplusplus
extern "C" {
#endif

struct tr_address;
struct tr_web_task;

typedef enum
{
    TR_WEB_GET_CODE       = CURLINFO_RESPONSE_CODE,
    TR_WEB_GET_REDIRECTS  = CURLINFO_REDIRECT_COUNT,
    TR_WEB_GET_REAL_URL   = CURLINFO_EFFECTIVE_URL
}
tr_web_task_info;

void tr_webInit( tr_session * session );

typedef enum
{
    TR_WEB_CLOSE_WHEN_IDLE,
    TR_WEB_CLOSE_NOW
}
tr_web_close_mode;

void tr_webClose( tr_session * session, tr_web_close_mode close_mode );

typedef void ( tr_web_done_func )( tr_session       * session,
                                   bool               timeout_flag,
                                   bool               did_connect_flag,
                                   long               response_code,
                                   const void       * response,
                                   size_t             response_byte_count,
                                   void             * user_data );

const char * tr_webGetResponseStr( long response_code );

struct tr_web_task * tr_webRun( tr_session        * session,
                                const char        * url,
                                const char        * range,
                                const char        * cookies,
                                tr_web_done_func    done_func,
                                void              * done_func_user_data );

struct evbuffer;

struct tr_web_task * tr_webRunWithBuffer( tr_session         * session,
                                          const char         * url,
                                          const char         * range,
                                          const char         * cookies,
                                          tr_web_done_func     done_func,
                                          void               * done_func_user_data,
                                          struct evbuffer    * buffer );

void tr_webGetTaskInfo( struct tr_web_task * task, tr_web_task_info info, void * dst );

void tr_http_escape( struct evbuffer *out, const char *str, int len, bool escape_slashes );

void tr_http_escape_sha1( char * out, const uint8_t * sha1_digest );

char* tr_http_unescape( const char * str, int len );

#ifdef __cplusplus
}
#endif

#endif
