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informer.php
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informer.php
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<?php
/**
* Habrahabr.ru Habrometr.
* Copyright (C) 2009 Leontyev Valera
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
require __DIR__ . '/bootstrap.php';
$timeStart = microtime(true);
if (isset($_GET['user']))
{
$user = $_GET['user'];
if (!preg_match('#[a-zA-Z0-9\-_]{1,100}#', $user))
{
Habrometr_Informer::showError('User not found', 425, 120);
}
}
else
{
$user = 'feedbee';
}
if (isset($_GET['w']))
{
$width = $_GET['w'];
if (!ctype_digit($width))
{
Habrometr_Informer::showError("Width must be an integer ($width given)", 425, 120);
}
}
else
{
$width = 425;
}
if (isset($_GET['h']))
{
$height = $_GET['h'];
if (!ctype_digit($height))
{
Habrometr_Informer::showError("Height must be an integer ($height given)", $width, 120);
}
}
else
{
$height = 120;
}
$className = "Habrometr_Informer_{$width}x{$height}";
$fileName = "./lib/Habrometr/Informer/{$width}x{$height}.php";
if (file_exists($fileName))
{
require_once($fileName);
}
else
{
Habrometr_Informer::showError("Informer of size {$width}x{$height} is not exists", $width, $height);
}
$informer = new $className($user);
/* @var $informer Habrometr_Informer */
// Is user's habrometr cached?
if ($informer->existsInCache())
{
Log::info(sprintf('informer.php: informer `%s` loaded from cache', $className));
$informer->printFromCache();
exit;
}
if (!$informer->prepare())
{
Log::err('Informer preparing failed');
throw new Exception('Informer preparing failed');
}
if (!$informer->build())
{
Log::err('Informer building failed');
throw new Exception('Informer building failed');
}
$informer->printCanvas();
try
{
$informer->saveToCache();
}
catch (Exception $e)
{
Log::warn(sprintf('informer.php: exception thrown while trying to save informer to cache: `%s`',
$e->getMessage()));
}
$informer->destroyCanvas();
$timeFull = microtime(true) - $timeStart;
Log::info(sprintf('informer.php: informer `%s` created, generated in %f seconds',
$className, $timeFull));