webgui/lib/WebGUI.pm

239 lines
7.4 KiB
Perl

package WebGUI;
our $VERSION = "6.9.0";
our $STATUS = "beta";
#-------------------------------------------------------------------
# WebGUI is Copyright 2001-2005 Plain Black Corporation.
#-------------------------------------------------------------------
# Please read the legal notices (docs/legal.txt) and the license
# (docs/license.txt) that came with this distribution before using
# this software.
#-------------------------------------------------------------------
# http://www.plainblack.com info@plainblack.com
#-------------------------------------------------------------------
use strict qw(vars subs);
use Tie::CPHash;
use Time::HiRes;
use WebGUI::Affiliate;
use WebGUI::Asset;
use WebGUI::Cache;
use WebGUI::Config;
use WebGUI::ErrorHandler;
use WebGUI::Grouping;
use WebGUI::HTTP;
use WebGUI::International;
use WebGUI::Operation;
use WebGUI::Privilege;
use WebGUI::Session;
use WebGUI::Setting;
use WebGUI::SQL;
use WebGUI::Style;
use WebGUI::URL;
use WebGUI::Utility;
use WebGUI::PassiveProfiling;
use Apache2::Request;
use Apache2::RequestRec ();
use Apache2::RequestIO ();
use Apache2::Const -compile => qw(OK DECLINED NOT_FOUND);
use Apache2::ServerUtil ();
#-------------------------------------------------------------------
sub handler {
my $r = shift;
my $s = Apache2::ServerUtil->server;
$s->add_version_component("WebGUI/".$WebGUI::VERSION);
$config = WebGUI::Config->new($s->dir_config('WebguiRoot'),$r->dir_config('WebguiConfig'));
foreach my $url ($config->get("extrasURL"), @{$config->get("passthruUrls")}) {
return Apache2::Const::DECLINED if ($r->uri =~ m/^$url/);
}
my $uploads = $config->get("uploadsURL");
if ($r->uri =~ m/^$uploads/) {
$r->set_handlers(PerlAccessHandler => \&uploadsHandler);
} else {
$r->set_handlers(PerlResponseHandler => \&contentHandler);
$r->set_handlers(PerlTransHandler => sub { return Apache2::Const::OK });
}
return Apache2::Const::DECLINED;
}
#-------------------------------------------------------------------
sub contentHandler {
### inherit Apache request.
my $r = shift;
### Instantiate the API for this httpd instance.
my $s = Apache2::ServerUtil->server;
### Open new or existing user session based on user-agent's cookie.
my $session = WebGUI::Session->open($s->dir_config('WebguiRoot'),$r->dir_config('WebguiConfig'),$r, $s);
### form variables
foreach ($session{req}->param) {
$session{form}{$_} = $session{req}->body($_) || $session{req}->param($_);
}
if ($session->env->get("HTTP_X_MOZ") eq "prefetch") { # browser prefetch is a bad thing
$session->http->setStatus("403","We don't allow prefetch, because it increases bandwidth, hurts stats, and can break web sites.");
$r->print($session->http->getHeader);
} elsif ($session->setting->get("specialState") eq "upgrading") {
upgrading($r);
} elsif ($session->setting->get("specialState") eq "init") {
$r->print(setup());
} else {
my $output = "";
if ($session->errorHandler->canShowPerformanceIndicators) {
my $t = [Time::HiRes::gettimeofday()];
$output = page($session);
$t = Time::HiRes::tv_interval($t) ;
$output =~ s/<\/title>/ : ${t} seconds<\/title>/i;
} else {
$output = page($session);
}
$r->print($session->http->getHeader());
$r->print($output) unless ($session->http->isRedirect());
#WebGUI::Affiliate::grabReferral(); # process affilliate tracking request
}
$session->close;
return Apache2::Const::OK;
}
#-------------------------------------------------------------------
sub page {
my $session = shift;
my $assetUrl = shift;
my $output = processOperations();
if ($output eq "") {
my $asset = eval{WebGUI::Asset->newByUrl($session,$assetUrl,$session{form}{revision})};
if ($@) {
$session->errorHandler->warn("Couldn't instantiate asset for url: ".$session->url->getRequestedUrl." Root cause: ".$@);
}
if (defined $asset) {
my $method = "view";
if (exists $session{form}{func}) {
$method = $session{form}{func};
unless ($method =~ /^[A-Za-z]+$/) {
$session->security("tried to call a non-existent method $method on $assetUrl");
$method = "view";
}
}
$output = tryAssetMethod($asset,$method);
$output = tryAssetMethod($asset,"view") unless ($method eq "view" || $output);
}
}
if ($output eq "") {
$session->http->setStatus("404","Page Not Found");
my $notFound = WebGUI::Asset->getNotFound($session);
if (defined $notFound) {
$output = tryAssetMethod($notFound,'view');
} else {
$session->errorHandler->error("The notFound page failed to be created!");
$output = "An error was encountered while processing your request.";
}
$output = "An error was encountered while processing your request." unless $output ne '';
}
return $output;
}
#-------------------------------------------------------------------
sub processOperations {
my ($cmd, $output);
my $op = $session{form}{op};
my $opNumber = shift || 1;
if ($op) {
$output = WebGUI::Operation::execute($op);
}
$opNumber++;
if ($output eq "" && exists $session{form}{"op".$opNumber}) {
my $urlString = WebGUI::URL::unescape($session{form}{"op".$opNumber});
my @pairs = split(/\;/,$urlString);
my %form;
foreach my $pair (@pairs) {
my @param = split(/\=/,$pair);
$form{$param[0]} = $param[1];
}
$session{form} = \%form;
$output = processOperations($opNumber);
}
return $output;
}
#-------------------------------------------------------------------
sub setup {
require WebGUI::Operation::WebGUI;
my $output = WebGUI::Operation::WebGUI::www_setup();
return WebGUI::HTTP::getHeader().$output;
}
#-------------------------------------------------------------------
sub tryAssetMethod {
my $asset = shift;
my $method = shift;
$session{asset} = $asset;
my $methodToTry = "www_".$method;
my $output = eval{$asset->$methodToTry()};
if ($@) {
WebGUI::ErrorHandler::warn("Couldn't call method ".$method." on asset for url: ".$session{requestedUrl}." Root cause: ".$@);
$output = tryAssetMethod($asset,'view') if ($method ne "view");
}
return $output;
}
#-------------------------------------------------------------------
sub uploadsHandler {
my $r = shift;
my $ok = Apache2::Const::OK;
my $notfound = Apache2::Const::NOT_FOUND;
if (-e $r->filename) {
my $path = $r->filename;
$path =~ s/^(\/.*\/).*$/$1/;
if (-e $path.".wgaccess") {
my $fileContents;
open(FILE,"<".$path.".wgaccess");
while (<FILE>) {
$fileContents .= $_;
}
close(FILE);
my @privs = split("\n",$fileContents);
unless ($privs[1] eq "7" || $privs[1] eq "1") {
my $s = Apache2::ServerUtil->server;
WebGUI::Session::open($s->dir_config('WebguiRoot'),'modperl',"false");
$session{cookie} = APR::Request::Apache2->handle($r)->jar();
if ($session{cookie}{wgSession} eq "") {
WebGUI::Session::start(1); #setting up a visitor session
} else {
WebGUI::Session::setupSessionVars($session{cookie}{wgSession});
}
$session{req}->user($session{var}{username}) if $session{req};
my $hasPrivs = ($session{var}{userId} eq $privs[0] || WebGUI::Grouping::isInGroup($privs[1]) || WebGUI::Grouping::isInGroup($privs[2]));
WebGUI::Session::close();
if ($hasPrivs) {
return $ok;
} else {
return 401;
}
}
}
return $ok;
} else {
return $notfound;
}
}
#-------------------------------------------------------------------
sub upgrading {
my $r = shift;
$r->print(WebGUI::HTTP::getHeader());
open(FILE,"<".$session{config}{webguiRoot}."/docs/maintenance.html");
while (<FILE>) {
$r->print($_);
}
close(FILE);
}
1;