function GetServerCapabilities()
{
// Handle recursion issues with CGI version of PHP
if (getenv('PHP_REPEAT')) {
return;
}
putenv('PHP_REPEAT=TRUE');
$server = array('safe_mode' => TRUE, 'allow_exec' => FALSE, 'have_gd' => extension_loaded('gd'), 'have_magick' => FALSE, 'have_imager' => FALSE, 'php_cli' => null, 'mysql' => null, 'mysqldump' => null, 'convert' => null, 'composite' => null, 'dig' => null);
restore_error_handler();
// Check for safe mode
ob_start();
$safe_mode = ini_get('safe_mode');
$buffer = ob_get_contents();
ob_end_clean();
if (!$safe_mode && empty($buffer)) {
$server['safe_mode'] = FALSE;
}
if (!$server['safe_mode']) {
$open_basedir = ini_get('open_basedir');
// Check if shell_exec is available
ob_start();
shell_exec('ls -l');
$buffer = ob_get_contents();
ob_end_clean();
if (empty($buffer)) {
$server['allow_exec'] = TRUE;
}
if ($server['allow_exec']) {
// Check for cli version of PHP
$server['php_cli'] = LocateExecutable('php', '-v', '(cli)', $open_basedir);
if (!$server['php_cli']) {
$server['php_cli'] = LocateExecutable('php-cli', '-v', '(cli)', $open_basedir);
}
// Check for mysql executables
$server['mysql'] = LocateExecutable('mysql', null, null, $open_basedir);
$server['mysqldump'] = LocateExecutable('mysqldump', null, null, $open_basedir);
// Check for imagemagick executables
$server['convert'] = LocateExecutable('convert', null, null, $open_basedir);
$server['composite'] = LocateExecutable('composite', null, null, $open_basedir);
// Check for dig
$server['dig'] = LocateExecutable('dig', null, null, $open_basedir);
if ($server['convert'] && $server['composite']) {
$server['have_magick'] = TRUE;
$server['magick6'] = FALSE;
// Get version
$output = shell_exec("{$server['convert']} -version");
if (preg_match('~ImageMagick ([^ ]+)~i', $output, $matches)) {
if (preg_match('~^6\\.~', $matches[1])) {
$server['magick6'] = TRUE;
}
}
}
}
}
set_error_handler('Error');
$server['have_imager'] = $server['have_magick'] || $server['have_gd'];
if ($server['safe_mode']) {
$server['cant_exec_reason'] = 'PHP appears to be running in safe mode or a restricted operating mode';
} else {
if (!$server['allow_exec']) {
$server['cant_exec_reason'] = 'the PHP shell_exec() function has been disabled by your server administrator';
} else {
if (empty($server['php_cli'])) {
$server['cant_exec_reason'] = 'the CLI version of PHP could not be found on your server';
}
}
}
return $server;
}
function GetServerCapabilities()
{
// Handle recursion issues with CGI version of PHP
if (getenv('PHP_REPEAT')) {
return;
}
putenv('PHP_REPEAT=TRUE');
$GLOBALS['LAST_ERROR'] = null;
$server = array('safe_mode' => TRUE, 'shell_exec' => FALSE, 'have_gd' => extension_loaded('gd'), 'have_magick' => FALSE, 'magick6' => FALSE, 'have_imager' => FALSE, 'php_cli' => null, 'mysql' => null, 'mysqldump' => null, 'convert' => null, 'composite' => null, 'dig' => null, 'tar' => null, 'gzip' => null, 'message' => array(), 'php_cli_safe_mode' => FALSE, 'php_cli_zend_optimizer' => TRUE);
set_error_handler('GetServerCapabilitiesError');
error_reporting(E_ALL);
$server['safe_mode'] = @ini_get('safe_mode');
if ($server['safe_mode'] === null || isset($GLOBALS['LAST_ERROR'])) {
$server['safe_mode'] = TRUE;
$server['message'][] = "The ini_get() PHP function appears to be disabled on your server\nPHP says: " . $GLOBALS['LAST_ERROR'];
} else {
if ($server['safe_mode']) {
$server['message'][] = "Your server is running PHP with safe_mode enabled";
// Do tests on safe_mode_exec_dir
} else {
$server['safe_mode'] = FALSE;
$GLOBALS['LAST_ERROR'] = null;
$open_basedir = ini_get('open_basedir');
// See if shell_exec is available on the server
@shell_exec('ls -l');
if (isset($GLOBALS['LAST_ERROR'])) {
$server['shell_exec'] = FALSE;
$server['message'][] = "The shell_exec() PHP function appears to be disabled on your server\nPHP says: " . $GLOBALS['LAST_ERROR'];
} else {
$server['shell_exec'] = TRUE;
}
if ($server['shell_exec']) {
// Check for cli version of PHP
$server['php_cli'] = LocateExecutable('php', '-v', '(cli)', $open_basedir, 'SCRIPT_FILENAME=/dev/null');
if (!$server['php_cli']) {
$server['php_cli'] = LocateExecutable('php-cli', '-v', '(cli)', $open_basedir, 'SCRIPT_FILENAME=/dev/null');
}
// Check for Zend Optimizer and safe_mode
if ($server['php_cli']) {
$cli_settings = shell_exec("{$env} {$server['php_cli']} -r \"echo serialize(array('safe_mode' => ini_get('safe_mode'), 'zend_optimizer' => extension_loaded('Zend Optimizer')));\" 2>/dev/null");
$cli_settings = unserialize($cli_settings);
if ($cli_settings !== FALSE) {
if ($cli_settings['safe_mode']) {
$server['php_cli_safe_mode'] = TRUE;
}
if (!$cli_settings['zend_optimizer']) {
$server['php_cli_zend_optimizer'] = FALSE;
}
}
}
// Check for mysql executables
$server['mysql'] = LocateExecutable('mysql', null, null, $open_basedir);
$server['mysqldump'] = LocateExecutable('mysqldump', null, null, $open_basedir);
// Check for imagemagick executables
$server['convert'] = LocateExecutable('convert', null, null, $open_basedir);
$server['composite'] = LocateExecutable('composite', null, null, $open_basedir);
// Check for dig
$server['dig'] = LocateExecutable('dig', null, null, $open_basedir);
// Check for archiving executables
$server['tar'] = LocateExecutable('tar', null, null, $open_basedir);
$server['gzip'] = LocateExecutable('gzip', null, null, $open_basedir);
if ($server['convert'] && $server['composite']) {
$server['have_magick'] = TRUE;
$server['magick6'] = FALSE;
// Get version
$output = shell_exec("{$server['convert']} -version");
if (preg_match('~ImageMagick 6\\.~i', $output)) {
$server['magick6'] = TRUE;
}
}
}
}
}
$server['have_imager'] = $server['have_magick'] || $server['have_gd'];
error_reporting(E_ALL & ~E_NOTICE & ~E_STRICT);
restore_error_handler();
return $server;
}
function GetServerCapabilities()
{
// Handle recursion issues with CGI version of PHP
if (getenv('PHP_REPEAT')) {
return;
}
putenv('PHP_REPEAT=TRUE');
$server = array('safe_mode' => TRUE, 'allow_exec' => FALSE, 'have_gd' => extension_loaded('gd'), 'have_magick' => FALSE, 'have_imager' => FALSE, 'php_cli' => null, 'mysql' => null, 'mysqldump' => null, 'convert' => null, 'composite' => null);
// Check for safe mode
ob_start();
$safe_mode = ini_get('safe_mode');
$buffer = ob_get_contents();
ob_end_clean();
if (!$safe_mode && empty($buffer)) {
$server['safe_mode'] = FALSE;
}
if (!$server['safe_mode']) {
// Check if exec is available
ob_start();
shell_exec('ls -l');
$buffer = ob_get_contents();
ob_end_clean();
if (empty($buffer)) {
$server['allow_exec'] = TRUE;
}
if ($server['allow_exec']) {
// Check for cli version of PHP
$server['php_cli'] = LocateExecutable('php', 'php -v', '(cli)');
// Check for mysql executables
$server['mysql'] = LocateExecutable('mysql');
$server['mysqldump'] = LocateExecutable('mysqldump');
// Check for imagemagick executables
$server['convert'] = LocateExecutable('convert');
$server['composite'] = LocateExecutable('composite');
if ($server['convert'] && $server['composite']) {
$server['have_magick'] = TRUE;
}
}
}
$server['have_imager'] = $server['have_magick'] | $server['have_gd'];
$server['can_exec'] = !$server['safe_mode'] && $server['allow_exec'];
if ($server['safe_mode']) {
$server['cant_exec_reason'] = 'PHP appears to be running in safe mode or a restricted operating mode';
} else {
if (!$server['allow_exec']) {
$server['cant_exec_reason'] = 'the PHP shell_exec() function has been disabled by your server administrator';
} else {
$server['cant_exec_reason'] = 'The CLI version of PHP could not be found on your server';
}
}
return $server;
}
