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/* -*- c++ -*- */
//=============================================================================
/**
* @file http_handler.h
*
* @author James Hu
*/
//=============================================================================
#include "ace/SOCK_Connector.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Connector.h"
#include "ace/Svc_Handler.h"
/**
* @class HTTP_Handler
*
* @brief A simple HTTP protocol handler for clients.
*
* Checks to see if the requested file is already cached. If
* so, it says so. If not, the request is issued to the
* connection. The fetched file is cached.
*/
class HTTP_Handler : public ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
{
public:
HTTP_Handler (void);
HTTP_Handler (const char * path);
/// Open hook.
virtual int open (void *);
/// Entry points defined by the abstract Svc_Handler.
virtual int svc ();
/// Accessor to the file being fetched.
const char *filename (void) const;
private:
char request_[BUFSIZ];
size_t request_size_;
char filename_[BUFSIZ];
size_t response_size_;
};
/**
* @class HTTP_Connector
*
* @brief A simple HTTP connector.
*
* Creates an HTTP Handler based on the URL, and then delegates
* to to the SOCK_CONNECTOR. Adapter pattern.
*/
class HTTP_Connector
{
public:
/// User entry point into the HTTP connector.
int connect (const char * url);
private:
/// Helper function.
int parseurl (const char *url,
char *host,
u_short *port,
char *path);
private:
/// Factory that actively establishes a connection with an HTTP
/// server.
ACE_Connector<HTTP_Handler, ACE_SOCK_CONNECTOR> connector_;
};
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