///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000-2003 Intel Corporation 
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//
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#ifndef GENLIB_NET_HTTP_HTTPREADWRITE_H
#define GENLIB_NET_HTTP_HTTPREADWRITE_H

#include "config.h"
#include "util.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 );

/************************************************************************
 * Function: http_FixUrl
 *
 * Parameters:
 *	IN uri_type* url;		URL to be validated and fixed
 *	OUT uri_type* fixed_url;	URL after being fixed.
 *
 * Description:
 *	Validates URL
 *
 * Returns:
 *	 UPNP_E_INVALID_URL
 * 	 UPNP_E_SUCCESS
 ************************************************************************/
int http_FixUrl( IN uri_type* url, OUT uri_type* fixed_url );


/************************************************************************
 * Function: http_FixStrUrl
 *
 * Parameters:
 *	IN char* urlstr ; 		Character string as a URL
 *	IN int urlstrlen ; 		Length of the character string
 *	OUT uri_type* fixed_url	;	Fixed and corrected URL
 *
 * Description:
 *	Parses URL and then validates URL
 *
 * Returns:
 *	 UPNP_E_INVALID_URL
 * 	 UPNP_E_SUCCESS
 ************************************************************************/
int http_FixStrUrl( IN char* urlstr, IN int urlstrlen, OUT 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 sucess
 *	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 int* 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 int* 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 unsigned int *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 unsigned int *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 Sucess
 *	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 Sucess
 *	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 unsigned int *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 Sucess
 *	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 unsigned int *size,
	IN int timeout);


/************************************************************************
 * Function: http_HttpGetProgress
 *
 * Parameters:
 *	IN void *Handle;		Handle to the HTTP get object
 *	OUT unsigned int *length;	Buffer to get the read and parsed data
 *	OUT unsigned int *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 unsigned int *length,
	OUT unsigned int *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);


/************************************************************************
 * Function: http_OpenHttpGet
 *
 * 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_OpenHttpGet(
	IN const char *url_str,
	IN OUT void **Handle,
	IN OUT char **contentType,
	OUT int *contentLength,
	OUT int *httpStatus,
	IN int timeout);


/************************************************************************
 * Function: http_OpenHttpGetProxy
 *
 * Parameters:
 *	IN const char *url_str;		String as a URL
 *	IN const char *proxy_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.
 *	If a proxy URL is defined then the connection is made there.
 *
 * 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_OpenHttpGetProxy(IN const char *url_str,
					IN const char *proxy_str,
					IN OUT void **Handle,
					IN OUT char **contentType,
					OUT int *contentLength,
					OUT int *httpStatus,
					IN 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 );


/************************************************************************
 * Function: http_MakeMessage
 *
 * Parameters:
 *	INOUT membuffer* buf;		buffer with the contents of the 
 *					message
 *	IN int http_major_version;	HTTP major version
 *	IN int http_minor_version;	HTTP minor version
 *	IN const char* fmt;		Pattern format 
 *	...;	
 *
 * Description:
 *	Generate an HTTP message based on the format that is specified
 *	in the input parameters.
 *
 * fmt 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
 *	'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
 *
 * Return: int
 *	0 - On Success
 *	UPNP_E_OUTOF_MEMORY
 *	UPNP_E_INVALID_URL
 ************************************************************************/
int http_MakeMessage(
	INOUT membuffer* buf, 
	IN int http_major_version,
	IN int http_minor_version,
	IN const char* fmt, ... );


/************************************************************************
 * 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