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<?php
/*
** Copyright (C) 1995-2007 by the ITools Authors.
** This file is part of ITools - the Internet Tools Library
**
** ITools 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 3 of the License, or
** (at your option) any later version.
**
** ITools 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, see <http://www.gnu.org/licenses/>.
*/
$GLOBALS['ULTRATIME'] = microtime(true);
unset($GLOBALS['IT_SYNTAXCONVERTER_DIR']); # Security measure for register_globals on
#$debug_itclassloader = true;
if ($it_convertedmainfile = it_initialize())
{
require($it_convertedmainfile);
exit;
}
function it_initialize()
{
$result = false;
static $it_initrecursion;
if (!$it_initrecursion++)
{
register_shutdown_function('it_shutdown');
$error_reporting = error_reporting();
error_reporting($error_reporting & ~E_NOTICE); # ITools is not (unpatched) E_NOTICE safe
$it_path = dirname(__FILE__);
if ($webmode = $_SERVER['REMOTE_ADDR']) # Web?
{
$GLOBALS['ULTRAHOME'] = dirname($_SERVER['DOCUMENT_ROOT']);
umask(0002); # Work around bugs.php.net/bug.php?id=28401
$_SERVER['HTTP_HOST'] = strtolower($_SERVER['HTTP_HOST']);
}
else # Shell
$GLOBALS['ULTRAHOME'] = dirname(dirname(preg_match('|^/|', $argv[0]) ? $argv[0] : getcwd() . '/' . $argv[0]));
$include_path = ini_get('include_path');
@set_error_handler("it_errorhandler", E_USER_ERROR | E_RECOVERABLE_ERROR | E_WARNING | E_USER_WARNING | E_NOTICE | E_USER_NOTICE);
error_reporting($error_reporting); # Restore user setting once we installed error handler
if (function_exists('spl_autoload_register') && spl_autoload_register('it_classloader'))
{
ini_set('include_path', $it_path . PATH_SEPARATOR . $include_path);
require_once("$it_path/auto_prepend.php");
if (file_exists("$it_path/auto_prepend_local.php"))
require_once("$it_path/auto_prepend_local.php");
}
else
{
ini_set('include_path', "$it_path/.." . PATH_SEPARATOR . $include_path);
require("itools.lib"); # PHP 4 fallback
}
# IT_HOME is recommended variable name for applications
$GLOBALS['IT_HOME'] = $GLOBALS['ULTRAHOME'] = it_untaint($GLOBALS['ULTRAHOME'], TC_ALL);
try { $needsconvert = $GLOBALS['IT_SYNTAXCONVERTER_DIR'] !== false && !@eval("return is_array(42=>69,);"); } catch (Error $needsconvert) {} # Check if PHP is patched to support our syntax, see http://cschneid.com/php/
if ($needsconvert && !$GLOBALS['IT_SYNTAXCONVERTER_DIR'])
{
$GLOBALS['IT_SYNTAXCONVERTER_DIR'] = $GLOBALS['ULTRAHOME'] . "/tmp";
if (!is_writeable($GLOBALS['IT_SYNTAXCONVERTER_DIR']) || !function_exists("posix_geteuid") || posix_geteuid() != fileowner($GLOBALS['IT_SYNTAXCONVERTER_DIR']))
die(($webmode ? "<pre>" : "") . "Seems to be running in shared environment, manually set\n\$GLOBALS['IT_SYNTAXCONVERTER_DIR'] in $it_path/auto_prepend_local.php\nto either:\n a) FALSE (syntax conversion disabled) or\n b) the path to a writeable directory (NOTE: THIS IS UNSAFE!) or\n c) install the PHP patch from http://cschneid.com/php/\n" . ($webmode ? "</pre>" : ""));
}
ini_set('include_path', ($GLOBALS['IT_SYNTAXCONVERTER_DIR'] ? $GLOBALS['IT_SYNTAXCONVERTER_DIR'] . "/it_syntaxconverter" . PATH_SEPARATOR : '') . $it_path . PATH_SEPARATOR . $include_path);
$user_includes = explode(PATH_SEPARATOR, $include_path);
# XXX Note: Comment this out if you want system wide include path converted and auto_prepend.php considered
$user_includes = array_diff($user_includes, array_diff(explode(PATH_SEPARATOR, get_cfg_var('include_path')), array(".")));
foreach (array_reverse($user_includes) as $include)
{
if ($include == ".")
$include = dirname($_SERVER['SCRIPT_FILENAME']);
if ($needsconvert)
it_convert($include);
if (@file_exists($autoprepend = "$include/auto_prepend.php"))
{
if ($needsconvert && ($include != $it_path))
$autoprepend = it_convert($autoprepend);
require_once($autoprepend);
if (file_exists("$include/auto_prepend_local.php"))
require_once("$include/auto_prepend_local.php");
}
}
if (!isset($GLOBALS['it_html']))
new it_html;
if ($needsconvert)
{
# Convert syntax (we will return name of converted script to global context to start it there)
$result = it_convert(it_untaint($_SERVER['SCRIPT_FILENAME'], TC_SELF));
}
}
return $result;
}
function it_convert($source)
{
$sourcerelpath = it::replace(array('^(/|\w:)' => ""), $source); # Remove leading / or C:
if (@is_dir($source))
{
if (!@is_link($source) && !file_exists("$source/.no_it_syntaxconvert"))
{
ini_set('include_path', $GLOBALS['IT_SYNTAXCONVERTER_DIR'] . "/it_syntaxconverter/$sourcerelpath" . PATH_SEPARATOR . ini_get('include_path'));
foreach (glob("$source/*") as $file)
it_convert($file);
}
}
else if (@is_readable($source))
{
$converted = $GLOBALS['IT_SYNTAXCONVERTER_DIR'] . "/it_syntaxconverter/$sourcerelpath";
$stat = @lstat($converted);
$mtimeconverted = $stat[9];
if ($mtimeconverted < filemtime($source))
{
if ($changed = filesize($source) < 200000) # Do not attempt to convert anything above 200k to avoid large memory consumption
{
if (substr($code = file_get_contents($source), 0, 3) == '#!/')
$code = preg_replace('/^[^\r\n]*[\r\n]+/', '', $code); # Remove shebang line when converting syntax
$converter = new it_syntaxconverter($code);
$parts = explode("/", dirname($converted));
for ($i = 1; $i <= count($parts); $i++)
@mkdir(implode("/", array_slice($parts, 0, $i)), 0700);
if ($changed = $converter->changes)
{
@unlink($converted);
if ($output = fopen($converted, "w"))
{
fputs($output, $converter->output);
fclose($output);
}
}
}
if (!$changed) # Link to original file if no changes made
{
@unlink($converted);
$symlink = function_exists("symlink") ? "symlink" : "copy"; # symlink() does not exist on Windows
$symlink(realpath($source), $converted);
}
clearstatcache();
}
}
return $converted;
}
function it_classloader($classname)
{
if (!preg_match('/:/', $classname) && ($file = @fopen("$classname.class", "r", true))) # Check if file is local (does not contain ':', i.e. no protocol like http:) for file in include path, do not use @include to get failures on inheritance
{
include("$classname.class");
fclose($file);
}
else
it_dbi::createclass($classname);
EDC('ultraclassloader', $classname, it_debug::backtrace());
}
function it_errorhandler($errno, $errstr, $errfile, $errline, $errcontext)
{
$error_reporting = error_reporting(0); # Disable error reporting while handling error
if ($result = $error_reporting & $errno) # Is this error enabled?
{
static $it_errnames = array();
if (!$it_errnames)
{
foreach (get_defined_constants() as $name => $no)
{
if (preg_match('/^E_/', $name))
$it_errnames[$no] = "$name: ";
}
}
$error = array(
'title' => $it_errnames[$errno] . $errstr,
'locals' => $errcontext,
'file' => $errfile,
'line' => $errline,
'backtraceskip' => 1,
);
switch ($errno)
{
case E_USER_ERROR: case E_RECOVERABLE_ERROR:
it::fatal($error);
break;
case E_NOTICE:
if ((dirname($errfile) == dirname(__FILE__)) && preg_match('/undefined|non-object/i', $errstr))
{
$result = true; # Silence E_NOTICE about undefined stuff in ITools files
break;
}
# FALLTHROUGH
default:
it::error($error);
break;
}
}
error_reporting($error_reporting);
return $result; # True means do not execute standard PHP error handler
}
function it_shutdown()
{
if (isset($GLOBALS['debug_timerlog']) && !empty($GLOBALS['ULTRATIMERLOG']))
it::log('timerlog', $_SERVER['REQUEST_URI'] . "\t" . substr($GLOBALS['ULTRATIMERLOG'], 1));
}
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