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#!/usr/bin/perl -w |
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############################################################################### |
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# Meteor |
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# An HTTP server for the 2.0 web |
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# Copyright (c) 2006 contributing authors |
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# |
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# Subscriber.pm |
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# |
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# Description: |
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# Common super-class for controller and subscriber |
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# |
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############################################################################### |
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# |
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# This program is free software; you can redistribute it and/or modify it |
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# under the terms of the GNU General Public License as published by the Free |
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# Software Foundation; either version 2 of the License, or (at your option) |
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# any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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# more details. |
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# |
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# You should have received a copy of the GNU General Public License along |
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# with this program; if not, write to the Free Software Foundation, Inc., |
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# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# For more information visit www.meteorserver.org |
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# |
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############################################################################### |
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|
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package Meteor::Connection; |
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############################################################################### |
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# Configuration |
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############################################################################### |
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|
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use strict; |
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|
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use Errno qw(EAGAIN); |
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|
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our $MAX_READ_SIZE=8192; |
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our $CONNECTION_WRITE_TIMEOUT=120; |
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|
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our @Connections=(); |
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|
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############################################################################### |
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# Class methods |
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############################################################################### |
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sub addAllHandleBits { |
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my $class=shift; |
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|
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my $rVecRef=shift; |
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my $wVecRef=shift; |
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my $eVecRef=shift; |
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my @cons=@Connections; |
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map {$_->addHandleBits($rVecRef,$wVecRef,$eVecRef) if(defined($_)) } @cons; |
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} |
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|
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sub checkAllHandleBits { |
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my $class=shift; |
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|
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my $rVec=shift; |
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my $wVec=shift; |
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my $eVec=shift; |
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|
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my @cons=@Connections; |
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map {$_->checkHandleBits($rVec,$wVec,$eVec) if(defined($_)) } @cons; |
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} |
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|
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sub connectionCount { |
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scalar(@Connections); |
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} |
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|
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sub closeAllConnections { |
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my @cons=@Connections; |
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|
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map { $_->close(); } @cons; |
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} |
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|
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sub listConnections { |
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my $class=shift; |
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my $list=''; |
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foreach my $conn (@Connections) { |
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$list .= $conn->{'socketFN'}.' '.$conn->{'ip'}.' '.$conn->{'type'}; |
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if (exists($conn->{'subscriberID'})) { |
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$list .= ' '.$conn->{'subscriberID'}; |
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} |
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$list .= "$::CRLF"; |
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} |
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$list; |
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} |
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|
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sub describeConnWithFileNum { |
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my $class=shift; |
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my $filenum=shift; |
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foreach my $conn (@Connections) { |
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if ($conn->{'socketFN'}==$filenum) { |
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my $ret = ""; |
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if (exists($conn->{'socketFN'})) { |
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$ret .= "socketFN: ".$conn->{'socketFN'}."$::CRLF"; |
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} |
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if (exists($conn->{'connectionStart'})) { |
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$ret .= "connectionStart: ".$conn->{'connectionStart'}."$::CRLF"; |
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} |
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if (exists($conn->{'writeBuffer'})) { |
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$ret .= "writeBuffer: ".$conn->{'writeBuffer'}."$::CRLF"; |
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} |
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if (exists($conn->{'readBuffer'})) { |
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$ret .= "readBuffer: ".$conn->{'readBuffer'}."$::CRLF"; |
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} |
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if (exists($conn->{'bytesWritten'})) { |
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$ret .= "bytesWritten: ".$conn->{'bytesWritten'}."$::CRLF"; |
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} |
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if (exists($conn->{'type'})) { |
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$ret .= "type: ".$conn->{'type'}."$::CRLF"; |
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} |
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if (exists($conn->{'mode'})) { |
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$ret .= "mode: ".$conn->{'mode'}."$::CRLF"; |
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} |
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if (exists($conn->{'ip'})) { |
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$ret .= "ip: ".$conn->{'ip'}."$::CRLF"; |
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} |
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if (exists($conn->{'headerBuffer'})) { |
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$ret .= "headerBuffer: ".$conn->{'headerBuffer'}."$::CRLF"; |
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} |
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if (exists($conn->{'messageCount'})) { |
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$ret .= "messageCount: ".$conn->{'messageCount'}."$::CRLF"; |
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} |
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if (exists($conn->{'connectionStart'})) { |
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$ret .= "age: ".(time-$conn->{'connectionStart'})."$::CRLF"; |
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} |
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if (exists($conn->{'connectionTimeLimit'})) { |
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$ret .= "connectionTimeLimit: ".$conn->{'connectionTimeLimit'}."$::CRLF"; |
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} |
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if (exists($conn->{'useragent'})) { |
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$ret .= "useragent: ".$conn->{'useragent'}."$::CRLF"; |
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} |
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if (exists($conn->{'subscriberID'})) { |
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$ret .= "subscriberID: ".$conn->{'subscriberID'}."$::CRLF"; |
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} |
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return $ret; |
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} |
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} |
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return -1; |
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} |
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|
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sub destroyBadRequests { |
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foreach my $conn (@Connections) { |
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if (time-$conn->{'connectionStart'} > 30 && !exists($conn->{'subscriberID'}) && $conn->{'type'} eq 'Meteor::Subscriber') { |
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&::syslog('debug',"Closing misbehaving subscriber %s",$conn->{'socketFN'}); |
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$conn->close(); |
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} |
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} |
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} |
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|
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############################################################################### |
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# Factory methods |
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############################################################################### |
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sub new { |
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# |
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# Create a new empty instance |
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# |
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my $class=shift; |
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|
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my $obj={}; |
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|
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bless($obj,$class); |
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} |
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|
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sub newFromServer { |
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# |
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# new instance from new server connection |
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# |
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my $self=shift->new(); |
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|
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$::Statistics->{'total_requests'}++; |
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|
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my $server=shift; |
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my $socket=$server->conSocket(); |
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|
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$self->{'socket'}=$socket; |
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$self->{'socketFN'}=$socket->fileno(); |
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$self->{'connectionStart'}=time; |
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|
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$socket->setNonBlocking(); |
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|
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$self->{'writeBuffer'}=''; |
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$self->{'readBuffer'}=''; |
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$self->{'bytesWritten'}=0; |
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$self->{'type'}=ref($self); |
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$self->{'ip'}=$socket->{'connection'}->{'remoteIP'}; |
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|
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push(@Connections,$self); |
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|
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&::syslog('debug',"New %s for %s using file number %s",ref($self),$self->{'ip'},$self->{'socketFN'}); |
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|
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$self; |
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} |
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|
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############################################################################### |
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# Instance methods |
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############################################################################### |
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sub write { |
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my $self=shift; |
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|
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$self->{'writeBuffer'}.=shift; |
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$self->{'writeBufferTimestamp'}=time unless(exists($self->{'writeBufferTimestamp'})); |
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} |
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|
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sub addHandleBits { |
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my $self=shift; |
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|
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my $rVecRef=shift; |
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my $wVecRef=shift; |
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my $eVecRef=shift; |
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|
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my $fno=$self->{'socketFN'}; |
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|
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if($self->{'writeBuffer'} ne '') |
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{ |
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if(exists($self->{'writeBufferTimestamp'}) && $self->{'writeBufferTimestamp'}+$CONNECTION_WRITE_TIMEOUT<time) |
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{ |
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&::syslog('debug',"%s for %s: write timed out",ref($self),$self->{'socket'}->{'connection'}->{'remoteIP'}); |
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|
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$self->{'writeBuffer'}=''; |
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$self->close(); |
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return; |
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} |
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vec($$wVecRef,$fno,1)=1; |
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} |
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|
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vec($$rVecRef,$fno,1)=1; |
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vec($$eVecRef,$fno,1)=1; |
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} |
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|
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sub checkHandleBits { |
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my $self=shift; |
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|
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my $rVec=shift; |
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my $wVec=shift; |
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my $eVec=shift; |
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|
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my $fno=$self->{'socketFN'}; |
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|
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if(vec($eVec,$fno,1)) |
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{ |
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# |
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# Something went wrong! |
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# |
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$self->exceptionReceived(); |
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|
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return; |
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} |
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|
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if(vec($rVec,$fno,1)) |
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{ |
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# |
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# Data available for read |
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# |
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my $socket=$self->{'socket'}; |
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|
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my $buffer=''; |
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my $bytesRead=sysread($socket->{'handle'},$buffer,$MAX_READ_SIZE); |
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if(defined($bytesRead) && $bytesRead>0) |
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{ |
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$::Statistics->{'total_inbound_bytes'}+=$bytesRead; |
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$self->{'readBuffer'}.=$buffer; |
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while($self->{'readBuffer'}=~s/^([^\r\n]*)\r?\n//) |
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{ |
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$self->processLine($1); |
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} |
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} |
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elsif(defined($bytesRead) && $bytesRead==0) |
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{ |
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# Connection closed |
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$self->{'remoteClosed'}=1; |
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$self->close(1, 'remoteClosed'); |
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|
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return; |
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} |
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else |
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{ |
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unless(${!}==EAGAIN) |
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{ |
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&::syslog('notice',"Connection closed: $!"); |
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$self->{'remoteClosed'}=1; |
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$self->close(1, 'remoteClosed'); |
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|
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return; |
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} |
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} |
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} |
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|
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if(vec($wVec,$fno,1) && $self->{'writeBuffer'} ne '') |
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{ |
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# |
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# Can write |
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# |
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my $socket=$self->{'socket'}; |
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|
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my $bytesWritten=syswrite($socket->{'handle'},$self->{'writeBuffer'}); |
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|
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if(defined($bytesWritten) && $bytesWritten>0) |
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{ |
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$::Statistics->{'total_outbound_bytes'}+=$bytesWritten; |
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$self->{'bytesWritten'}+=$bytesWritten; |
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$self->{'writeBuffer'}=substr($self->{'writeBuffer'},$bytesWritten); |
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if(length($self->{'writeBuffer'})==0) |
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{ |
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delete($self->{'writeBufferTimestamp'}); |
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$self->close(1) if(exists($self->{'autoClose'})); |
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} |
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else |
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{ |
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$self->{'writeBufferTimestamp'}=time; |
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} |
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} |
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else |
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{ |
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unless(${!}==EAGAIN) |
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{ |
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&::syslog('notice',"Connection closed: $!"); |
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$self->{'remoteClosed'}=1; |
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$self->close(1, 'remoteClosed'); |
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|
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return; |
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} |
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} |
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} |
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} |
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|
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sub exceptionReceived { |
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my $self=shift; |
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|
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$self->{'writeBuffer'}=''; |
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|
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$self->close(); |
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} |
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|
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sub close { |
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my $self=shift; |
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|
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#&::syslog('debug',"Close called for %s for %s when write buffer empty",ref($self),$self->{'socket'}->{'connection'}->{'remoteIP'}); |
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|
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unless($self->{'remoteClosed'}) |
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{ |
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if(!exists($self->{'autoClose'}) && length($self->{'writeBuffer'})>0) |
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{ |
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$self->{'autoClose'}=1; |
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|
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&::syslog('debug',"Will close %s for %s when write buffer empty",ref($self),$self->{'socket'}->{'connection'}->{'remoteIP'}); |
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|
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return; |
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} |
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} |
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|
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eval { |
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$self->{'socket'}->close(); |
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}; |
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|
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# |
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# Remove connection from list of connections |
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# |
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my $idx=undef; |
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my $numcon = scalar(@Connections); |
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for(my $i=0;$i<$numcon;$i++) |
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{ |
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if($Connections[$i]==$self) |
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{ |
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$idx=$i; |
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last; |
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} |
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} |
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|
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if(defined($idx)) |
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{ |
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splice(@Connections,$idx,1); |
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} |
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|
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&::syslog('debug',"Closed %s for %s",ref($self),$self->{'socket'}->{'connection'}->{'remoteIP'}); |
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|
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$self->didClose(); |
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} |
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|
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sub didClose { |
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} |
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|
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1; |
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############################################################################EOF |
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