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/*
* Copyright (C) 2007-2019 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.
*/
#include <dirent.h>
#ifndef WIN32
#include <sys/wait.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include "bu/protocolhttp.h"
#include "bu/logger.h"
#define CRLF "\x0D\x0A"
#define CR '\x0D'
#define LF '\x0A'
using namespace Bu;
Bu::ProtocolHttp::ProtocolHttp()
{
}
Bu::ProtocolHttp::~ProtocolHttp()
{
}
void Bu::ProtocolHttp::onNewConnection( Bu::Client *pClient )
{
this->pClient = pClient;
iState = 0;
}
#define SDB( i ) (void)0
//#define SDB( i ) printf("state %d: %d, \"%s\"\n", i, tt, sToken.getStr() )
void Bu::ProtocolHttp::onNewData( Bu::Client *pClient )
{
/* logHexDump(
1,
pClient->getInput().getStr(),
pClient->getInput().getSize(),
"input"
);*/
for(;;)
{
Bu::String sToken;
TokenType tt = getToken( sToken );
if( tt == ttOutOfData )
return;
switch( iState )
{
case 0: // Start token, should be "method" (get, put, etc)
SDB( 0 );
sMethod = sToken;
iState = 1;
break;
case 1: // The path requested
SDB( 1 );
sPath = sToken;
iState = 2;
break;
case 2: // The protocol name and version
SDB( 2 );
if( strncmp( sToken.getStr(), "HTTP/", 5 ) )
{
pClient->disconnect();
return;
}
else
{
char *s, *s2;
s = sToken.getStr()+5;
iMajor = strtol( s, &s2, 10 );
iMinor = strtol( s2+1, NULL, 10 );
iState = 3;
}
break;
case 3: // End of initial header, now comes mime-style blocks.
SDB( 3 );
if( tt == ttNewline )
{
iState = 10;
}
else if( tt == ttDoubleNewline )
{
earlyResponse();
}
else
{
pClient->disconnect();
return;
}
break;
case 10: // HTTP-Message (skipped for now...)
SDB( 10 );
if( tt == ttString )
{
iState = 11;
}
else
{
pClient->disconnect();
}
break;
case 11: // Should be a colon...
SDB( 11 );
if( tt == ttSeperator && sToken == ":" )
{
iState = 12;
}
else
{
pClient->disconnect();
}
break;
case 12:
SDB( 12 );
if( tt == ttNewline )
{
iState = 10;
}
if( tt == ttDoubleNewline )
{
earlyResponse();
}
break;
case 20:
SDB( 20 );
break;
}
}
}
Bu::ProtocolHttp::TokenType Bu::ProtocolHttp::getToken( Bu::String &line )
{
char s;
int jmax = pClient->getInputSize();
bool bNonWS = false;
for( int j = 0; j < jmax; j++ )
{
pClient->peek( &s, 1, j );
if( iState > 2 && isSeperator( s ) )
{
if( j == 0 )
{
line += s;
pClient->seek( 1 );
return ttSeperator;
}
else
{
pClient->seek( j );
return ttString;
}
}
else if( isWS( s ) )
{
if( bNonWS )
{
pClient->seek( j );
return ttString;
}
}
else if( s == CR )
{
if( pClient->getInputSize() < 4 )
return ttOutOfData;
char ss[3];
pClient->peek( ss, 3, j+1 );
if( ss[0] == LF && ss[1] != ' ' && ss[1] != '\t' )
{
if( bNonWS )
{
pClient->seek( j );
return ttString;
}
else if( ss[1] == CR && ss[2] == LF )
{
pClient->seek( 4 );
return ttDoubleNewline;
}
else
{
pClient->seek( 2 );
return ttNewline;
}
}
j += 2;
if( bNonWS )
{
pClient->seek( j );
return ttString;
}
}
else
{
line += s;
bNonWS = true;
}
}
return ttOutOfData;
}
bool Bu::ProtocolHttp::isWS( char buf )
{
return (buf == ' ' || buf == '\t');
}
bool Bu::ProtocolHttp::isSeperator( char buf )
{
return (buf == '(' || buf == ')' || buf == '<' || buf == '>' ||
buf == '@' || buf == ',' || buf == ';' || buf == ':' ||
buf == '\\' || buf == '\"' || buf == '/' || buf == '[' ||
buf == ']' || buf == '?' || buf == '=' || buf == '{' ||
buf == '}' );
}
void Bu::ProtocolHttp::earlyResponse()
{
if( sMethod == "GET" )
{
onRequest( sMethod, sPath );
iState = 0;
}
else
{
iState = 20;
}
}
void Bu::ProtocolHttp::lateResponse()
{
onRequest( sMethod, sPath );
}
void Bu::ProtocolHttp::sendResponse( const Response &rRes )
{
char buf[1024];
int iSize = sprintf( buf, "HTTP/1.1 %d ", rRes.iCode );
pClient->write( buf, iSize );
pClient->write( rRes.sReason );
pClient->write( CRLF, 2 );
for( Response::StringHash::const_iterator i = rRes.hHeaders.begin();
i != rRes.hHeaders.end(); i++ )
{
pClient->write( i.getKey() );
pClient->write(": ", 2 );
pClient->write( i.getValue() );
pClient->write( CRLF, 2 );
}
iSize = sprintf( buf, "Content-Length: %ld" CRLF, rRes.sContent.getSize() );
pClient->write( buf, iSize );
pClient->write( CRLF, 2 );
pClient->write( rRes.sContent );
}
//
// Bu::ProtocolHttp::Response
//
Bu::ProtocolHttp::Response::Response( int iCode ) :
iCode( iCode )
{
switch( iCode )
{
case 100: sReason = "Continue"; break;
case 101: sReason = "Switching Protocols"; break;
case 200: sReason = "OK"; break;
case 201: sReason = "Created"; break;
case 202: sReason = "Accepted"; break;
case 203: sReason = "Non-Authoritative Information"; break;
case 204: sReason = "No Content"; break;
case 205: sReason = "Reset Content"; break;
case 206: sReason = "Partial Content"; break;
case 300: sReason = "Multiple Choices"; break;
case 301: sReason = "Moved Permanently"; break;
case 302: sReason = "Found"; break;
case 303: sReason = "See Other"; break;
case 304: sReason = "Not Modified"; break;
case 305: sReason = "Use Proxy"; break;
case 307: sReason = "Temporary Redirect"; break;
case 400: sReason = "Bad Request"; break;
case 401: sReason = "Unauthorized"; break;
case 402: sReason = "Payment Required"; break;
case 403: sReason = "Forbidden"; break;
case 404: sReason = "Not Found"; break;
case 405: sReason = "Method Not Allowed"; break;
case 406: sReason = "Not Acceptable"; break;
case 407: sReason = "Proxy Authentication Required"; break;
case 408: sReason = "Request Time-out"; break;
case 409: sReason = "Conflict"; break;
case 410: sReason = "Gone"; break;
case 411: sReason = "Length Required"; break;
case 412: sReason = "Precondition Failed"; break;
case 413: sReason = "Request Entity Too Large"; break;
case 414: sReason = "Request-URI Too Large"; break;
case 415: sReason = "Unsupported Media Type"; break;
case 416: sReason = "Requested range not satisfiable"; break;
case 417: sReason = "Expectation Failed"; break;
case 500: sReason = "Internal Server Error"; break;
case 501: sReason = "Not Implemented"; break;
case 502: sReason = "Bad Gateway"; break;
case 503: sReason = "Service Unavailable"; break;
case 504: sReason = "Gateway Time-out"; break;
case 505: sReason = "HTTP Version not supported"; break;
}
}
Bu::ProtocolHttp::Response::Response( int iCode, const Bu::String &sReason ) :
iCode( iCode ),
sReason( sReason )
{
}
Bu::ProtocolHttp::Response::~Response()
{
}
void Bu::ProtocolHttp::Response::setHeader(
const Bu::String &sKey, const Bu::String &sVal )
{
hHeaders.insert( sKey, sVal );
}
void Bu::ProtocolHttp::Response::setContent( const Bu::String &sCont )
{
sContent = sCont;
}
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