ACE/apps/JAWS/server/HTTP_Response.h

   1 /* -*- c++ -*- */
   2
   3 //=============================================================================
   4 /**
   5  *  @file    HTTP_Response.h
   6  *
   7  *  @author James Hu
   8  */
   9 //=============================================================================
  10
  11
  12 #ifndef HTTP_RESPONSE_H
  13 #define HTTP_RESPONSE_H
  14
  15 class JAWS_IO;
  16 class HTTP_Request;
  17
  18 /**
  19  * @class HTTP_Response
  20  *
  21  * @brief Abstraction for HTTP responses.
  22  *
  23  * Provides an encapsulation of responses to HTTP requests.
  24  * For instance, given an HTTP GET request, it will produce
  25  * header and body suitable for returning to the client who made
  26  * the request.
  27  */
  28 class HTTP_Response
  29 {
  30 public:
  31   HTTP_Response (JAWS_IO &io,
  32                  HTTP_Request &request);
  33   HTTP_Response (HTTP_Request &request, JAWS_IO &io);
  34   ~HTTP_Response ();
  35
  36   /// This is called by the handler to initiate a response.
  37   void process_request ();
  38
  39   /// This returns an error response for cases where there is a problem
  40   /// with the request, logging the log_message.
  41   void error_response (int status,
  42                        const char *log_message);
  43
  44 private:
  45   /// Called by process_request when the request is a normal request.
  46   void normal_response ();
  47
  48   /// Called by process_request when the request is a cgi request.
  49   void cgi_response ();
  50
  51 private:
  52   /// static version of process_request, just in case.
  53   static void process_request (HTTP_Response &response);
  54
  55   /// creates the appropriate header information for responses.
  56   void build_headers ();
  57
  58 private:
  59   /// The IO and Request objects associated with this re
  60   JAWS_IO &io_;
  61   HTTP_Request &request_;
  62
  63 #if defined (ACE_JAWS_BASELINE)
  64   char *HTTP_HEADER;
  65 #else
  66   const char *HTTP_HEADER;
  67 #endif
  68   /// HTTP Headers and trailers.
  69   const char *HTTP_TRAILER;
  70   int HTTP_HEADER_LENGTH;
  71   int HTTP_TRAILER_LENGTH;
  72 };
  73
  74 #endif /* HTTP_RESPONSE_H */