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/* Copyright (c) 2014, Vsevolod Stakhov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef HTTP_H_
#define HTTP_H_
/**
* @file http.h
*
* This is an interface for HTTP client and conn. This code uses HTTP parser written
* by Joyent Inc based on nginx code.
*/
#include "config.h"
#include "http_parser.h"
enum rspamd_http_message_type {
RSPAMD_HTTP_REQUEST,
RSPAMD_HTTP_REPLY
};
/**
* HTTP header structure
*/
struct rspamd_http_header {
GString *name;
GString *value;
struct rspamd_http_header *next;
};
/**
* HTTP message structure, used for requests and replies
*/
struct rspamd_http_message {
GString *url;
struct rspamd_http_header *headers;
GString *body;
enum rspamd_http_message_type type;
time_t date;
gint code;
};
/**
* Options for HTTP connection
*/
enum rspamd_http_options {
RSPAMD_HTTP_BODY_PARTIAL = 0x1//!< RSPAMD_HTTP_BODY_PARTIAL
};
struct rspamd_http_connection_private;
struct rspamd_http_connection;
typedef gboolean (*rspamd_http_body_handler) (struct rspamd_http_connection *srv,
struct rspamd_http_message *req,
const gchar *chunk,
gsize len);
typedef void (*rspamd_http_error_handler) (struct rspamd_http_connection *srv, GError *err);
typedef void (*rspamd_http_reply_handler) (struct rspamd_http_connection *srv,
struct rspamd_http_message *reply, GError *err);
/**
* HTTP conn structure
*/
struct rspamd_http_connection {
gint fd;
struct rspamd_http_connection_private *priv;
enum rspamd_http_options opts;
rspamd_http_body_handler body_handler;
rspamd_http_error_handler error_handler;
gpointer ud;
};
/**
* Create new http conn
* @param handler handler for body
* @param opts options
* @return new conn structure
*/
struct rspamd_http_connection* rspamd_http_connection_new (rspamd_http_body_handler body_handler,
rspamd_http_error_handler error_handler,
enum rspamd_http_options opts);
/**
* Handle a request using socket fd and user data ud
* @param conn conn structure
* @param ud opaque user data
* @param fd fd to read/write
*/
void rspamd_http_connection_handle_request (struct rspamd_http_connection *conn, gpointer ud, gint fd,
struct timeval *timeout, struct event_base *base);
/**
* Send reply using initialised conn
* @param conn conn structure
* @param reply HTTP reply
* @return TRUE if request can be sent
*/
gboolean rspamd_http_connection_write_reply (struct rspamd_http_connection *conn,
struct rspamd_http_message *reply,
rspamd_http_reply_handler *handler);
/**
* Free conn structure
* @param conn
*/
void rspamd_http_connection_free (struct rspamd_http_connection *conn);
/**
* Reset conn for a new request
* @param conn
*/
void rspamd_http_connection_reset (struct rspamd_http_connection *conn);
/**
* Create new HTTP reply
* @param code code to pass
* @return new reply object
*/
struct rspamd_http_message* rspamd_http_new_message (enum rspamd_http_message_type);
/**
* Append a header to reply
* @param rep
* @param name
* @param value
*/
void rspamd_http_message_add_header (struct rspamd_http_message *rep, const gchar *name, const gchar *value);
/**
* Free HTTP reply
* @param rep
*/
void rspamd_http_message_free (struct rspamd_http_message *msg);
/**
* Parse HTTP date header and return it as time_t
* @param header HTTP date header
* @param len length of header
* @return time_t or (time_t)-1 in case of error
*/
time_t rspamd_http_parse_date (const gchar *header, gsize len);
#endif /* HTTP_H_ */
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