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/***************************************************************************
* Copyright (C) 2005 by Joris Guisson *
* joris.guisson@gmail.com *
* *
* 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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <tqsocket.h>
#include <tqhttp.h>
#include <util/log.h>
#include <util/mmapfile.h>
#include "httpserver.h"
#include "httpclienthandler.h"
#include "httpresponseheader.h"
#include "php_handler.h"
using namespace bt;
namespace kt
{
HttpClientHandler::HttpClientHandler(HttpServer* srv,TQSocket* sock) : srv(srv),client(sock),php_response_hdr(200)
{
state = WAITING_FOR_REQUEST;
bytes_read = 0;
php = 0;
}
HttpClientHandler::~HttpClientHandler()
{
delete client;
delete php;
}
void HttpClientHandler::readyToRead()
{
if (state == WAITING_FOR_REQUEST)
{
while (client->canReadLine())
{
TQString line = client->readLine();
header_data += line;
if (header_data.endsWith("\r\n\r\n"))
{
// We have got the header, so lets parse it
handleRequest();
break;
}
}
}
else if (state == WAITING_FOR_CONTENT)
{
Uint32 ba = client->bytesAvailable();
if (ba + bytes_read < header.contentLength())
{
client->readBlock((char*)request_data.data() + bytes_read,ba);
bytes_read += ba;
}
else
{
Uint32 left = header.contentLength() - bytes_read;
client->readBlock((char*)request_data.data() + bytes_read,left);
bytes_read += left;
srv->handlePost(this,header,request_data);
header_data = "";
request_data.resize(0);
state = WAITING_FOR_REQUEST;
if (client->bytesAvailable() > 0)
readyToRead();
}
}
}
void HttpClientHandler::handleRequest()
{
header = TQHttpRequestHeader(header_data);
// Out(SYS_WEB|LOG_DEBUG) << "Parsing request : " << header.toString() << endl;
if (header.method() == "POST")
{
if (header.hasContentLength())
{
request_data.resize(header.contentLength());
state = WAITING_FOR_CONTENT;
bytes_read = 0;
if (client->bytesAvailable() > 0)
readyToRead();
}
}
else if (header.method() == "GET")
{
srv->handleGet(this,header);
header_data = "";
request_data.resize(0);
}
else
{
srv->handleUnsupportedMethod(this);
}
}
bool HttpClientHandler::sendFile(HttpResponseHeader & hdr,const TQString & full_path)
{
// Out(SYS_WEB|LOG_DEBUG) << "Sending file " << full_path << endl;
// first look in cache
MMapFile* c = srv->cacheLookup(full_path);
if (!c)
{
// not in cache so load it
c = new MMapFile();
if (!c->open(full_path,MMapFile::READ))
{
delete c;
Out(SYS_WEB|LOG_DEBUG) << "Failed to open file " << full_path << endl;
return false;
}
srv->insertIntoCache(full_path,c);
}
hdr.setValue("Content-Length",TQString::number(c->getSize()));
// Out(SYS_WEB|LOG_DEBUG) << "HTTP header : " << endl;
// Out(SYS_WEB|LOG_DEBUG) << hdr.toString() << endl;
TQCString d = hdr.toString().utf8();
client->writeBlock(d.data(),d.length());
Uint32 written = 0;
Uint32 total = c->getSize();
const char* data = (const char*)c->getDataPointer();
while (written < total)
{
Uint32 w = client->writeBlock(data + written,total - written);
written += w;
}
client->flush();
// Out(SYS_WEB|LOG_DEBUG) << "Finished sending " << full_path << " (" << written << " bytes)" << endl;
return true;
}
#define HTTP_404_ERROR "<html><head><title>404 Not Found</title></head><body>The requested file was not found !</body></html>"
#define HTTP_500_ERROR "<html><head><title>HTTP/1.1 500 Internal Server Error</title></head><body>HTTP/1.1 Internal Server Error<br>%1</body></html>"
void HttpClientHandler::send404(HttpResponseHeader & hdr,const TQString & path)
{
// Out(SYS_WEB|LOG_DEBUG) << "Sending 404 " << path << endl;
TQString data = HTTP_404_ERROR;
hdr.setValue("Content-Length",TQString::number(data.length()));
TQTextStream os(client);
os.setEncoding( TQTextStream::UnicodeUTF8 );
os << hdr.toString();
os << data;
}
void HttpClientHandler::send500(HttpResponseHeader & hdr)
{
// Out(SYS_WEB|LOG_DEBUG) << "Sending 500 " << endl;
TQString data = TQString(HTTP_500_ERROR).arg("An internal server error occured !");
hdr.setValue("Content-Length",TQString::number(data.length()));
TQTextStream os(client);
os.setEncoding( TQTextStream::UnicodeUTF8 );
os << hdr.toString();
os << data;
}
void HttpClientHandler::sendResponse(const HttpResponseHeader & hdr)
{
// Out(SYS_WEB|LOG_DEBUG) << "Sending response " << hdr.toString() << endl;
TQTextStream os(client);
os.setEncoding( TQTextStream::UnicodeUTF8 );
os << hdr.toString();
}
void HttpClientHandler::executePHPScript(
PhpInterface* php_iface,
HttpResponseHeader & hdr,
const TQString & php_exe,
const TQString & php_file,
const TQMap<TQString,TQString> & args)
{
// Out(SYS_WEB|LOG_DEBUG) << "Launching PHP script " << php_file << endl;
php = new PhpHandler(php_exe,php_iface);
if (!php->executeScript(php_file,args))
{
TQString data = TQString(HTTP_500_ERROR).arg("Failed to launch PHP executable !");
hdr.setResponseCode(500);
hdr.setValue("Content-Length",TQString::number(data.utf8().length()));
TQTextStream os(client);
os.setEncoding( TQTextStream::UnicodeUTF8 );
os << hdr.toString();
os << data;
state = WAITING_FOR_REQUEST;
}
else
{
php_response_hdr = hdr;
connect(php,TQT_SIGNAL(finished()),this,TQT_SLOT(onPHPFinished()));
state = PROCESSING_PHP;
}
}
void HttpClientHandler::onPHPFinished()
{
const TQByteArray & output = php->getOutput();
php_response_hdr.setValue("Content-Length",TQString::number(output.size()));
TQTextStream os(client);
os.setEncoding( TQTextStream::UnicodeUTF8 );
os << php_response_hdr.toString();
os.writeRawBytes(output.data(),output.size());
php->deleteLater();
php = 0;
state = WAITING_FOR_REQUEST;
}
}
#include "httpclienthandler.moc"
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