source: trunk/gsdl/src/w32server/httpreq.h@ 1293

#ifndef HTTPREQ_H
#define HTTPREQ_H

/*
Copyright (C) 1996

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

The author can be contacted via Email at [email protected]
*/

/*
Module Name: HTTP Reqeust
Purpose: Parses HTTP requests and then calls the appropriate function
    to respond to the request
Public Functions:
    Request Thread
*/

// Public Data Structures

//Used for sending information to the request thread
struct RequestThreadMessageT {
    SOCKADDR_IN ClientSockAddr;
    SOCKET ClientSocket;
    int AddrLen;
    };

//Length constants for RequestFieldsT
#define ReqMethodStrLen           24
#define ReqURIStrLen             255
#define ReqVersionStrLen          24
#define ReqDateStrLen             48
#define ReqMIMEVerStrLen          24
#define ReqPragmaStrLen          128
#define ReqAuthorizationStrLen   512
#define ReqFromStrLen            128
#define ReqIfModSinceStrLen       48
#define ReqRefererStrLen         512
#define ReqUserAgentStrLen       256
#define ReqContentEncodingStrLen 128
#define ReqContentTypeStrLen     128
#define ReqContentLengthStrLen    48
#define ReqAcceptStrLen          256
#define ReqAcceptLangStrLen       48
#define ReqConnectionStrLen       24
#define ReqAuthorizedUserStrLen   48
#define ReqPathInfoStrLen        512
#define ReqPathTranslatedStrLen  512
#define ReqScriptNameStrLen      512
//                               ---
//                              4436

#define MAX_OTHER_HEADERS 100

struct RequestHeaderT {
    char *Var;
   char *Val;
    };

struct RequestFieldsT {
    //Simple request line info v0.9
    char MethodStr[ReqMethodStrLen];
    char URIStr[ReqURIStrLen];
    //added v1.0
    char VersionStr[ReqVersionStrLen];
    //General Header
    char DateStr[ReqDateStrLen];
    char MIMEVerStr[ReqMIMEVerStrLen];
    char PragmaStr[ReqPragmaStrLen];
    //Request Header
    char AuthorizationStr[ReqAuthorizationStrLen];
    char FromStr[ReqFromStrLen];
    char IfModSinceStr[ReqIfModSinceStrLen];
    char RefererStr[ReqRefererStrLen];
    char UserAgentStr[ReqUserAgentStrLen];
    //Entity Header (Only CGI stuff)
    char ContentEncodingStr[ReqContentEncodingStrLen];
    char ContentTypeStr[ReqContentTypeStrLen];
    char ContentLengthStr[ReqContentLengthStrLen];
   //v1.0 Optional (the more common ones)
   char AcceptStr[ReqAcceptStrLen];
   char AcceptLangStr[ReqAcceptLangStrLen];
    //v1.1 Exentions
    char ConnectionStr[ReqConnectionStrLen];
    //Pointer to buffer containing the content
    DWORD ContentLength;
    BYTE *Content;

    //Authorized user, filled in if a user is authorized from Auth..Str above
    char AuthorizedUserStr[ReqAuthorizedUserStrLen];

   //CGI style fields
   char PathInfoStr[ReqPathInfoStrLen];
   char PathTranslatedStr[ReqPathTranslatedStrLen];
   char ScriptNameStr[ReqScriptNameStrLen];

   //Other Headers
   int NumOtherHeaders;
   RequestHeaderT OtherHeaders[MAX_OTHER_HEADERS];
    };

struct RequestInfoT {
    int ThreadNum;

    //Buffer for IO operations (so we're not constantly reallocating buffers)
    BYTE *IOBuffer;
   int IOBufferSize;

    //Socket the request is on and its address
    SOCKET ClientSocket;
    SOCKADDR_IN ClientSockAddr;
    int AddrLen;

    //Should we keep the connection alive?
    BOOL KeepAlive;
    };


// Public Functions

/*
Function Name: RequestThread
Purpose: Was the HTTP request processing thread
         Now just a standard procedure called to process a request
Parameters:
           Pointer to packed parameter structure
*/
void RequestThread(RequestThreadMessageT *Parameters);

/*
Function Name: Process 1.0 Request
Purpose: Sends a HTTP 1.0 (plus some) reply to a HTTP 1.x request
Parameters:
    ClientSocket - Socket the client is on
    ClientSockAddr - Address of client
    AddrLen - Length of client address
    RequestInfo - Structure storing the parsed headers
    KeepAlive - To be set to true if we are maintainig the connection
    IOBuffer - Pointer to buffer allocated for IO operations
    TheadNum - Number of calling thread for debugging
Notes: The function uses "Connection: Keep-Alive" as written in the HTTP/1.1
    draft and implemented by Netscape and MSIE
*/
void Process10Request(RequestInfoT &RequestInfo, RequestFieldsT &RequestFields);

#endif