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/*
* File: upnpwebserver.h
* Author: savop
*
* Created on 30. Mai 2009, 18:13
*/
#ifndef _UPNPWEBSERVER_H
#define _UPNPWEBSERVER_H
#include "../common.h"
#include <upnp/upnp.h>
/**
* The internal webserver
*
* This is the internal webserver. It distributes all the contents of the
* UPnP-Server.
*
*/
class cUPnPWebServer {
friend class cUPnPServer;
private:
static cUPnPWebServer *mInstance;
static UpnpVirtualDirCallbacks mVirtualDirCallbacks;
const char* mRootdir;
cUPnPWebServer(const char* root = "/");
protected:
public:
/**
* Initializes the webserver
*
* It enables the webserver which comes with the <em>Intel SDK</em> and creates
* virtual directories for shares media.
*
* @return returns
* - \bc true, if initializing was successful
* - \bc false, otherwise
*/
bool init();
/**
* Uninitializes the webserver
*
* This stops the webserver.
*
* @return returns
* - \bc true, if initializing was successful
* - \bc false, otherwise
*/
bool uninit();
/**
* Returns the instance of the webserver
*
* Returns the instance of the webserver. This will create a single
* instance of none is existing on the very first call. A subsequent call
* will return the same instance.
*
* @return the instance of webserver
*/
static cUPnPWebServer* getInstance(
const char* rootdir = "/" /**< the root directory of the webserver */
);
virtual ~cUPnPWebServer();
//};
/****************************************************
*
* The callback functions for the webserver
*
****************************************************/
/**
* Retrieve file information
*
* Returns file related information for an virtual directory file
*
* @return 0 on success, -1 otherwise
* @param filename The filename of which the information is gathered
* @param info The File_Info structure with the data
*/
static int getInfo(const char* filename, struct File_Info* info);
/**
* Opens a virtual directory file
*
* Opens a file in a virtual directory with the specified mode.
*
* Possible modes are:
* - \b UPNP_READ, Opens the file for reading
* - \b UPNP_WRITE, Opens the file for writing
*
* It returns a file handle to the opened file, NULL otherwise
*
* @return FileHandle to the opened file, NULL otherwise
* @param filename The file to open
* @param mode UPNP_WRITE for writing, UPNP_READ for reading.
*/
static UpnpWebFileHandle open(const char* filename, UpnpOpenFileMode mode);
/**
* Reads from the opened file
*
* Reads <code>buflen</code> bytes from the file and stores the content
* to the buffer
*
* Returns 0 no more bytes read (EOF)
* >0 bytes read from file
*
* @return number of bytes read, 0 on EOF
* @param fh the file handle of the opened file
* @param buf the buffer to write the bytes to
* @param buflen the maximum count of bytes to read
*
*/
static int read(UpnpWebFileHandle fh, char* buf, size_t buflen);
/**
* Writes to the opened file
*
* Writes <code>buflen</code> bytes from the buffer and stores the content
* in the file
*
* Returns >0 bytes wrote to file, maybe less the buflen in case of write
* errors
*
* @return number of bytes read, 0 on EOF
* @param fh the file handle of the opened file
* @param buf the buffer to read the bytes from
* @param buflen the maximum count of bytes to write
*
*/
static int write(UpnpWebFileHandle fh, char* buf, size_t buflen);
/**
* Seek in the file
*
* Seeks in the opened file and sets the file pointer to the specified offset
*
* Returns 0 on success, non-zero value otherwise
*
* @return 0 on success, non-zero value otherwise
* @param fh the file handle of the opened file
* @param offset a negative oder positive value which moves the pointer
* forward or backward
* @param origin SEEK_CUR, SEEK_END or SEEK_SET
*
*/
static int seek(UpnpWebFileHandle fh, off_t offset, int origin);
/**
* Closes the file
*
* closes the opened file
*
* Returns 0 on success, non-zero value otherwise
*
* @return 0 on success, non-zero value otherwise
* @param fh the file handle of the opened file
*
*/
static int close(UpnpWebFileHandle fh);
};
#endif /* _UPNPWEBSERVER_H */
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