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/*
* Copyright (C) 2007-2012 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_FAST_CGI_H
#define BU_FAST_CGI_H
#include "bu/string.h"
#include "bu/hash.h"
#include "bu/array.h"
#include "bu/tcpsocket.h"
#include "bu/tcpserversocket.h"
namespace Bu
{
class Stream;
class FastCgi
{
public:
FastCgi( int iPort );
FastCgi();
virtual ~FastCgi();
static bool isEmbedded();
typedef Bu::Hash<Bu::String, Bu::String> StrHash;
enum RequestType
{
typeBeginRequest = 1,
typeAbortRequest = 2,
typeEndRequest = 3,
typeParams = 4,
typeStdIn = 5,
typeStdOut = 6,
typeStdErr = 7,
typeData = 8,
typeGetValues = 9,
typeGetValuesResult = 10
};
enum Role
{
roleResponder = 1,
roleAuthorizer = 2,
roleFilter = 3
};
enum Flags
{
flagsKeepConn = 1
};
enum Status
{
statusRequestComplete = 0,
statusCantMpxConn = 1,
statusOverloaded = 2,
statusUnknownRole = 3
};
typedef struct {
uint8_t uVersion;
uint8_t uType;
uint16_t uRequestId;
uint16_t uContentLength;
uint8_t uPaddingLength;
uint8_t uReserved;
} Record;
typedef struct {
uint16_t uRole;
uint8_t uFlags;
uint8_t reserved[5];
} BeginRequestBody;
typedef struct {
uint32_t uStatus;
uint8_t uProtocolStatus;
uint8_t reserved[3];
} EndRequestBody;
typedef struct Channel {
Channel() : uFlags( 0 ) { }
StrHash hParams;
Bu::String sStdIn;
Bu::String sData;
uint8_t uFlags;
} Channel;
enum ChannelFlags
{
chflgParamsDone = 0x01,
chflgStdInDone = 0x02,
chflgDataDone = 0x04,
chflgAllDone = 0x03
};
virtual void run();
void stopRunning() { bRunning = false; }
virtual void onInit() { };
virtual int onRequest( const StrHash &hParams,
const Bu::String &sStdIn, Bu::Stream &sStdOut,
Bu::Stream &sStdErr )=0;
virtual void onUninit() { };
private:
void read( Bu::TcpSocket &s, Record &r );
void read( Bu::TcpSocket &s, BeginRequestBody &b );
uint32_t readLen( Bu::TcpSocket &s, uint16_t &uUsed );
void readPair( Bu::TcpSocket &s, StrHash &hParams, uint16_t &uUsed );
void write( Bu::TcpSocket &s, Record r );
void write( Bu::TcpSocket &s, EndRequestBody b );
bool hasChannel( int iChan );
private:
Bu::TcpServerSocket *pSrv;
bool bRunning;
Bu::Array<Channel *> aChannel;
};
Bu::Formatter &operator<<( Bu::Formatter &f, const Bu::FastCgi::Record &r );
};
#endif
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