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<?php
# MantisBT - a php based bugtracking system

# MantisBT 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.
#
# MantisBT 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 MantisBT. If not, see <http://www.gnu.org/licenses/>.

/**
* API for simplifying remote URL operations
*
* @package CoreAPI
* @subpackage URLAPI
* @copyright Copyright (C) 2000 - 2002 Kenzaburo Ito - kenito@300baud.org
* @copyright Copyright (C) 2002 - 2012 MantisBT Team - mantisbt-dev@lists.sourceforge.net
* @link http://www.mantisbt.org
*/

/**
* Retrieve the contents of a remote URL.
* First tries using built-in PHP modules, then
* attempts system calls as last resort.
* @param string URL
* @return string URL contents
*/
function url_get( $p_url ) {

# Generic PHP call
if( ini_get_bool( 'allow_url_fopen' ) ) {
return @file_get_contents( $p_url );
}

# Use the PHP cURL extension
if( function_exists( 'curl_init' ) ) {
$t_curl = curl_init( $p_url );
curl_setopt( $t_curl, CURLOPT_RETURNTRANSFER, true );

$t_data = curl_exec( $t_curl );
curl_close( $t_curl );

return $t_data;
}

# Last resort system call
$t_url = escapeshellarg( $p_url );
return shell_exec( 'curl ' . $t_url );
}
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