/*******************************************************************************
 *
 * Copyright (c) 2000-2003 Intel Corporation
 * 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.
 * - Neither name of Intel Corporation nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 INTEL OR
 * CONTRIBUTORS 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 GENLIB_NET_HTTP_HTTPREADWRITE_H
#define GENLIB_NET_HTTP_HTTPREADWRITE_H

/*
 * \file
 */

#include "config.h"
#include "upnputil.h"
#include "sock.h"
#include "httpparser.h"

/*! timeout in secs. */
#define HTTP_DEFAULT_TIMEOUT	30

#ifdef __cplusplus
#extern "C" {
#endif

int http_CancelHttpGet(IN void *Handle);

/*!
 * \brief Validates URL.
 *
 * \return
 * 	\li \c UPNP_E_INVALID_URL
 * 	\li \c UPNP_E_SUCCESS
 */
int http_FixUrl(
	/*! [in] URL to be validated and fixed. */
	uri_type *url,
	/*! [out] URL after being fixed. */
	uri_type *fixed_url);

/*!
 * \brief Parses URL and then validates URL.
 *
 * \return
 * 	\li \c UPNP_E_INVALID_URL
 * 	\li \c UPNP_E_SUCCESS
 */
int http_FixStrUrl(
	/*! [in] Character string as a URL. */
	const char *urlstr,
	/*! [in] Length of the character string. */
	size_t urlstrlen,
	/*! [out] Fixed and corrected URL. */
	uri_type *fixed_url);

/************************************************************************
 * Function: http_Connect
 *
 * Parameters:
 *	IN uri_type* destination_url;	URL containing destination information
 *	OUT uri_type *url;		Fixed and corrected URL
 *
 * Description:
 *	Gets destination address from URL and then connects to the remote end
 *
 *  Returns:
 *	socket descriptor on success
 *	UPNP_E_OUTOF_SOCKET
 *	UPNP_E_SOCKET_CONNECT on error
 ************************************************************************/
int http_Connect( IN uri_type* destination_url, OUT uri_type *url );


/************************************************************************
 * Function: http_RecvMessage
 *
 * Parameters:
 *	IN SOCKINFO *info;			Socket information object
 *	OUT http_parser_t* parser;		HTTP parser object
 *	IN http_method_t request_method;	HTTP request method
 *	IN OUT int* timeout_secs;		time out
 *	OUT int* http_error_code;		HTTP error code returned
 *
 * Description:
 *	Get the data on the socket and take actions based on the read data
 *	to modify the parser objects buffer. If an error is reported while
 *	parsing the data, the error code is passed in the http_errr_code
 *	parameter
 *
 * Returns:
 *	 UPNP_E_BAD_HTTPMSG
 * 	 UPNP_E_SUCCESS
 ************************************************************************/
int http_RecvMessage( IN SOCKINFO *info, OUT http_parser_t* parser,
		IN http_method_t request_method, 
		IN OUT int* timeout_secs,
		OUT int* http_error_code );


/************************************************************************
 * Function: http_SendMessage
 *
 * Parameters:
 *	IN SOCKINFO *info ;		Socket information object
 *	IN OUT int * TimeOut ;		time out value
 *	IN const char* fmt, ...	 Pattern format to take actions upon
 *
 * Description:
 *	Sends a message to the destination based on the
 *	IN const char* fmt parameter
 *	fmt types:
 *		'f':	arg = const char * file name
 *		'm':	arg1 = const char * mem_buffer; arg2= size_t buf_length
 *	E.g.:
 *		char *buf = "POST /xyz.cgi http/1.1\r\n\r\n";
 *		char *filename = "foo.dat";
 *		int status = http_SendMessage( tcpsock, "mf",
 *			buf, strlen(buf),	// args for memory buffer
 *			filename );		// arg for file
 *
 * Returns:
 *	UPNP_E_OUTOF_MEMORY
 * 	UPNP_E_FILE_READ_ERROR
 *	UPNP_E_SUCCESS
 ************************************************************************/
int http_SendMessage(
	IN SOCKINFO *info,
	IN OUT int* timeout_secs, 
	IN const char* fmt, ... );


/************************************************************************
 * Function: http_RequestAndResponse
 *
 * Parameters:
 *	IN uri_type* destination;	Destination URI object which contains
 *					remote IP address among other elements
 *	IN const char* request;		Request to be sent
 *	IN size_t request_length;	Length of the request
 *	IN http_method_t req_method;	HTTP Request method
 *	IN int timeout_secs;		time out value
 *	OUT http_parser_t* response;	Parser object to receive the repsonse
 *
 * Description:
 *	Initiates socket, connects to the destination, sends a
 *	request and waits for the response from the remote end
 *
 * Returns:
 *	UPNP_E_SOCKET_ERROR
 * 	UPNP_E_SOCKET_CONNECT
 *	Error Codes returned by http_SendMessage
 *	Error Codes returned by http_RecvMessage
 ************************************************************************/
int http_RequestAndResponse(
	IN uri_type* destination,
	IN const char* request,
	IN size_t request_length,
	IN http_method_t req_method,
	IN int timeout_secs, 
	OUT http_parser_t* response );


/************************************************************************
 * return codes:
 *	0 -- success
 *	UPNP_E_OUTOF_MEMORY
 *	UPNP_E_TIMEDOUT
 *	UPNP_E_BAD_REQUEST
 *	UPNP_E_BAD_RESPONSE
 *	UPNP_E_INVALID_URL
 *	UPNP_E_SOCKET_READ
 *	UPNP_E_SOCKET_WRITE
 ************************************************************************/


/************************************************************************
 * Function: http_Download
 *
 * Parameters:
 *	IN const char* url_str;	String as a URL
 *	IN int timeout_secs;	time out value
 *	OUT char** document;	buffer to store the document extracted
 *				from the donloaded message.
 *	OUT size_t* doc_length;	length of the extracted document
 *	OUT char* content_type;	Type of content
 *
 * Description:
 *	Download the document message and extract the document 
 *	from the message.
 *
 * Return: int
 *	UPNP_E_SUCCESS
 *	UPNP_E_INVALID_URL
 ************************************************************************/
int http_Download(
	IN const char* url, 
	IN int timeout_secs,
	OUT char** document,
	OUT size_t *doc_length,
	OUT char* content_type );


/************************************************************************
 * Function: http_WriteHttpPost
 *
 * Parameters:
 *	IN void *Handle:	Handle to the http post object
 *	IN char *buf:		Buffer to send to peer, if format used
 *				is not UPNP_USING_CHUNKED, 
 *	IN size_t *size:	Size of the data to be sent.
 *	IN int timeout:		time out value
 *
 * Description:
 *	Formats data if format used is UPNP_USING_CHUNKED.
 *	Writes data on the socket connected to the peer.
 *
 * Return: int
 *	UPNP_E_SUCCESS - On Success
 *	UPNP_E_INVALID_PARAM - Invalid Parameter
 *	-1 - On Socket Error.
 ************************************************************************/
int http_WriteHttpPost(IN void *Handle,
		       IN char *buf,
		       IN size_t *size,
		       IN int timeout);


/************************************************************************
 * Function: http_CloseHttpPost
 *
 * Parameters:
 *	IN void *Handle;	Handle to the http post object
 *	IN OUT int *httpStatus;	HTTP status returned on receiving a
 *				response message
 *	IN int timeout;		time out value
 *
 * Description:
 *	Sends remaining data if using  UPNP_USING_CHUNKED 
 *	format. Receives any more messages. Destroys socket and any socket
 *	associated memory. Frees handle associated with the HTTP POST msg.
 *
 * Return: int
 *	UPNP_E_SUCCESS		- On success
 *	UPNP_E_INVALID_PARAM	- Invalid Parameter
 ************************************************************************/
int http_CloseHttpPost(IN void *Handle, 
		       IN OUT int *httpStatus,
		       IN int timeout);


/************************************************************************
 * Function: http_OpenHttpPost
 *
 * Parameters:
 *	IN const char *url_str;		String as a URL	
 *	IN OUT void **Handle;		Pointer to buffer to store HTTP
 *					post handle
 *	IN const char *contentType;	Type of content
 *	IN int contentLength;		length of content
 *	IN int timeout;			time out value
 *
 * Description:
 *	Makes the HTTP POST message, connects to the peer, 
 *	sends the HTTP POST request. Adds the post handle to buffer of 
 *	such handles
 *
 * Return : int;
 *	UPNP_E_SUCCESS		- On success
 *	UPNP_E_INVALID_PARAM	- Invalid Parameter
 *	UPNP_E_OUTOF_MEMORY
 *	UPNP_E_SOCKET_ERROR
 *	UPNP_E_SOCKET_CONNECT
 ************************************************************************/
int http_OpenHttpPost(IN const char *url_str,
		      IN OUT void **Handle,
		      IN const char *contentType,
		      IN int contentLength,
		      IN int timeout);


/************************************************************************
 * Function: http_ReadHttpGet
 *
 * Parameters:
 *	IN void *Handle;	Handle to the HTTP get object
 *	IN OUT char *buf;	Buffer to get the read and parsed data
 *	IN OUT size_t *size;	Size of the buffer passed
 *	IN int timeout;		time out value
 *
 * Description:
 *	Parses already existing data, then gets new data.
 *	Parses and extracts information from the new data.
 *
 * Return: int
 *	UPNP_E_SUCCESS		- On success
 *	UPNP_E_INVALID_PARAM	- Invalid Parameter
 *	UPNP_E_BAD_RESPONSE
 *	UPNP_E_BAD_HTTPMSG
 *	UPNP_E_CANCELED
 ************************************************************************/
int http_ReadHttpGet(
	IN void *Handle,
	IN OUT char *buf,
	IN OUT size_t *size,
	IN int timeout);


/************************************************************************
 * Function: http_HttpGetProgress
 *
 * Parameters:
 *	IN void *Handle;	Handle to the HTTP get object
 *	OUT size_t *length;	Buffer to get the read and parsed data
 *	OUT size_t *total;	Size of tge buffer passed
 *
 * Description:
 *	Extracts information from the Handle to the HTTP get object.
 *
 * Return: int
 *	UPNP_E_SUCCESS		- On Sucess
 *	UPNP_E_INVALID_PARAM	- Invalid Parameter
 ************************************************************************/
int http_HttpGetProgress(
	IN void *Handle,
	OUT size_t *length,
	OUT size_t *total);

/************************************************************************
 * Function: http_CloseHttpGet
 *
 * Parameters:
 *	IN void *Handle;	Handle to HTTP get object
 *
 * Description:
 *	Clears the handle allocated for the HTTP GET operation
 *	Clears socket states and memory allocated for socket operations. 
 *
 * Return: int
 *	UPNP_E_SUCCESS		- On Success
 *	UPNP_E_INVALID_PARAM	- Invalid Parameter
 ************************************************************************/
int http_CloseHttpGet(IN void *Handle);

/*!
 * \brief Makes the HTTP GET message, connects to the peer,
 * sends the HTTP GET request, gets the response and parses the response.
 *
 * If a proxy URL is defined then the connection is made there.
 *
 * \return integer
 * \li \c UPNP_E_SUCCESS - On Success
 * \li \c UPNP_E_INVALID_PARAM - Invalid Paramters
 * \li \c UPNP_E_OUTOF_MEMORY
 * \li \c UPNP_E_SOCKET_ERROR
 * \li \c UPNP_E_BAD_RESPONSE
 */
int http_OpenHttpGet(
	/* [in] String as a URL. */
	const char *url_str,
	/* [in,out] Pointer to buffer to store HTTP post handle. */
	void **Handle,
	/* [in,out] Type of content. */
	char **contentType,
	/* [out] length of content. */
	int *contentLength,
	/* [out] HTTP status returned on receiving a response message. */
	int *httpStatus,
	/* [in] time out value. */
	int timeout);

/*!
 * \brief Makes the HTTP GET message, connects to the peer,
 * sends the HTTP GET request, gets the response and parses the response.
 *
 * If a proxy URL is defined then the connection is made there.
 *
 * \return integer
 * \li \c UPNP_E_SUCCESS - On Success
 * \li \c UPNP_E_INVALID_PARAM - Invalid Paramters
 * \li \c UPNP_E_OUTOF_MEMORY
 * \li \c UPNP_E_SOCKET_ERROR
 * \li \c UPNP_E_BAD_RESPONSE
 */
int http_OpenHttpGetProxy(
	/* [in] String as a URL. */
	const char *url_str,
	/* [in] String as a URL. */
	const char *proxy_str,
	/* [in,out] Pointer to buffer to store HTTP post handle. */
	void **Handle,
	/* [in,out] Type of content. */
	char **contentType,
	/* [out] length of content. */
	int *contentLength,
	/* [out] HTTP status returned on receiving a response message. */
	int *httpStatus,
	/* [in] time out value. */
	int timeout);


/************************************************************************
 * Function: http_SendStatusResponse
 *
 * Parameters:
 *	IN SOCKINFO *info;		Socket information object
 *	IN int http_status_code;	error code returned while making 
 *					or sending the response message
 *	IN int request_major_version;	request major version
 *	IN int request_minor_version;	request minor version
 *
 * Description:
 *	Generate a response message for the status query and send the
 *	status response.
 *
 * Return: int
 *	0 -- success
 *	UPNP_E_OUTOF_MEMORY
 *	UPNP_E_SOCKET_WRITE
 *	UPNP_E_TIMEDOUT
 ************************************************************************/
int http_SendStatusResponse(
	IN SOCKINFO *info,
	IN int http_status_code,
	IN int request_major_version,
	IN int request_minor_version );

/*!
 * \brief Generate an HTTP message based on the format that is specified in
 * the input parameters.
 *
\verbatim
Format types:
	'B':	arg = int status_code		-- appends content-length, content-type and HTML body for given code.
	'b':	arg1 = const char *buf;
		arg2 = size_t buf_length memory ptr
	'C':	(no args)			-- appends a HTTP CONNECTION: close header depending on major, minor version.
	'c':	(no args)			-- appends CRLF "\r\n"
	'D':	(no args)			-- appends HTTP DATE: header
	'd':	arg = int number		-- appends decimal number
	'G':	arg = range information		-- add range header
	'h':	arg = off_t number		-- appends off_t number
	'K':	(no args)			-- add chunky header
	'L':	arg = language information	-- add Content-Language header if Accept-Language header is not empty and if
						   WEB_SERVER_CONTENT_LANGUAGE is not empty
	'N':	arg1 = off_t content_length	-- content-length header
	'q':	arg1 = http_method_t		-- request start line and HOST header
		arg2 = (uri_type *)
	'Q':	arg1 = http_method_t;		-- start line of request
		arg2 = char* url;
		arg3 = size_t url_length 
	'R':	arg = int status_code		-- adds a response start line
	'S':	(no args)			-- appends HTTP SERVER: header
	's':	arg = const char *		-- C_string
	'T':	arg = char * content_type;	-- format e.g: "text/html"; content-type header
	't':	arg = time_t * gmt_time		-- appends time in RFC 1123 fmt
	'U':	(no args)			-- appends HTTP USER-AGENT: header
	'X':	arg = const char *		-- useragent; "redsonic" HTTP X-User-Agent: useragent
\endverbatim
 *
 * \return
 * 	\li \c 0 - On Success
 * 	\li \c UPNP_E_OUTOF_MEMORY
 * 	\li \c UPNP_E_INVALID_URL
 */
int http_MakeMessage(
	/* [in,out] Buffer with the contents of the message. */
	INOUT membuffer* buf, 
	/* [in] HTTP major version. */
	IN int http_major_version,
	/* [in] HTTP minor version. */
	IN int http_minor_version,
	/* [in] Pattern format. */
	IN const char* fmt,
	/* [in] Format arguments. */
	... );


/************************************************************************
 * Function: http_CalcResponseVersion
 *
 * Parameters:
 *	IN int request_major_vers;	Request major version
 *	IN int request_minor_vers;	Request minor version
 *	OUT int* response_major_vers;	Response mojor version
 *	OUT int* response_minor_vers;	Response minor version
 *
 * Description:
 *	Calculate HTTP response versions based on the request versions.
 *
 * Return: void
 ************************************************************************/
void http_CalcResponseVersion( 
	IN int request_major_vers,
	IN int request_minor_vers,
	OUT int* response_major_vers,
	OUT int* response_minor_vers );


/************************************************************************
 * Function: http_OpenHttpGetEx
 *
 * Parameters:
 *	IN const char *url_str;		String as a URL
 *	IN OUT void **Handle;		Pointer to buffer to store HTTP
 *					post handle
 *	IN OUT char **contentType;	Type of content
 *	OUT int *contentLength;		length of content
 *	OUT int *httpStatus;		HTTP status returned on receiving a
 *					response message
 *	IN int timeout;			time out value
 *
 * Description:
 *	Makes the HTTP GET message, connects to the peer, 
 *	sends the HTTP GET request, gets the response and parses the 
 *	response.
 *
 * Return: int
 *	UPNP_E_SUCCESS		- On Success
 *	UPNP_E_INVALID_PARAM	- Invalid Paramters
 *	UPNP_E_OUTOF_MEMORY
 *	UPNP_E_SOCKET_ERROR
 *	UPNP_E_BAD_RESPONSE
 ************************************************************************/
int http_OpenHttpGetEx(IN const char *url_str,
		     IN OUT void **Handle,
		     IN OUT char **contentType,
		     OUT int *contentLength,
		     OUT int *httpStatus,
			 IN int lowRange,
			 IN int highRange,
		     IN int timeout);


/************************************************************************
 * Function: get_sdk_info
 *
 * Parameters:
 *	OUT char *info;	buffer to store the operating system information
 *
 * Description:
 *	Returns the server information for the operating system
 *
 * Return:
 *	UPNP_INLINE void
 ************************************************************************/
void get_sdk_info( OUT char *info );

#ifdef __cplusplus
}	/* #extern "C" */
#endif


#endif /* GENLIB_NET_HTTP_HTTPREADWRITE_H */