/**
* create temp file which will receive the download
* @param string $basename set url
* @param boolean $isEncode If true uses the "first" temporary name
* @return boolean|array If you can not create file return false, If create file return array
*/
function createTmpFile($basename, $isEncode)
{
$folder = preg_replace('#[/]$#', '', PATH) . '/';
if ($isEncode === false) {
$basename = SECPREFIX . sha1($basename);
}
//$basename .= $basename;
$tmpMime = '.' . mt_rand(0, 1000) . '_';
if ($isEncode === true) {
$tmpMime .= isset($_SERVER['REQUEST_TIME']) && strlen($_SERVER['REQUEST_TIME']) > 0 ? $_SERVER['REQUEST_TIME'] : (string) time();
} else {
$tmpMime .= (string) INIT_EXEC;
}
if (file_exists($folder . $basename . $tmpMime)) {
return createTmpFile($basename, true);
}
$source = fopen($folder . $basename . $tmpMime, 'w');
if ($source !== false) {
return array('location' => $folder . $basename . $tmpMime, 'source' => $source);
}
return false;
}
/**
* Callback to for proxy page
*/
function ac_templates_proxy()
{
drupal_add_http_header('Content-Type', 'application/javascript');
if (isset($_GET['callback']) && strlen($_GET['callback']) > 0) {
$param_callback = $_GET['callback'];
}
if (isset($_SERVER['HTTP_HOST']) === FALSE || strlen($_SERVER['HTTP_HOST']) === 0) {
$response = array('error' => 'The client did not send the Host header');
} else {
if (isset($_SERVER['SERVER_PORT']) === FALSE) {
$response = array('error' => 'The Server-proxy did not send the PORT (configure PHP)');
} else {
if (MAX_EXEC < 10) {
$response = array('error' => 'Execution time is less 15 seconds, configure this with ini_set/set_time_limit or "php.ini" (if safe_mode is enabled), recommended time is 30 seconds or more');
} else {
if (MAX_EXEC <= TIMEOUT) {
$response = array('error' => 'The execution time is not configured enough to TIMEOUT in SOCKET, configure this with ini_set/set_time_limit or "php.ini" (if safe_mode is enabled), recommended that the "max_execution_time =;" be a minimum of 5 seconds longer or reduce the TIMEOUT in "define(\'TIMEOUT\', ' . TIMEOUT . ');"');
} else {
if (isset($_GET['url']) === FALSE || strlen($_GET['url']) === 0) {
$response = array('error' => 'No such parameter "url"');
} else {
if (isHttpUrl($_GET['url']) === FALSE) {
$response = array('error' => 'Only http scheme and https scheme are allowed');
} else {
if (preg_match('#[^A-Za-z0-9_[.]\\[\\]]#', $param_callback) !== 0) {
$response = array('error' => 'Parameter "callback" contains invalid characters');
$param_callback = JSLOG;
} else {
if (createFolder() === FALSE) {
$err = get_error();
$response = array('error' => 'Can not create directory' . ($err !== NULL && isset($err['message']) && strlen($err['message']) > 0 ? ': ' . $err['message'] : ''));
$err = NULL;
} else {
$http_port = (int) $_SERVER['SERVER_PORT'];
$tmp = createTmpFile($_GET['url'], FALSE);
if ($tmp === FALSE) {
$err = get_error();
$response = array('error' => 'Can not create file' . ($err !== NULL && isset($err['message']) && strlen($err['message']) > 0 ? ': ' . $err['message'] : ''));
$err = NULL;
} else {
$response = downloadSource($_GET['url'], $tmp['source'], 0);
fclose($tmp['source']);
}
}
}
}
}
}
}
}
}
if (is_array($response) && isset($response['mime']) && strlen($response['mime']) > 0) {
clearstatcache();
if (FALSE === file_exists($tmp['location'])) {
$response = array('error' => 'Request was downloaded, but file can not be found, try again');
} else {
if (filesize($tmp['location']) < 1) {
$response = array('error' => 'Request was downloaded, but there was some problem and now the file is empty, try again');
} else {
$extension = str_replace(array('image/', 'text/', 'application/'), '', $response['mime']);
$extension = str_replace(array('windows-bmp', 'ms-bmp'), 'bmp', $extension);
$extension = str_replace(array('svg+xml', 'svg-xml'), 'svg', $extension);
$extension = str_replace('xhtml+xml', 'xhtml', $extension);
$extension = str_replace('jpeg', 'jpg', $extension);
$locationFile = preg_replace('#[.][0-9_]+$#', '.' . $extension, $tmp['location']);
if (file_exists($locationFile)) {
unlink($locationFile);
}
if (rename($tmp['location'], $locationFile)) {
//set cache
setHeaders(FALSE);
remove_old_files();
if (CROSS_DOMAIN === 1) {
$mime = JsonEncodeString($response['mime'], TRUE);
$mime = $response['mime'];
if ($response['encode'] !== NULL) {
$mime .= ';charset=' . JsonEncodeString($response['encode'], TRUE);
}
$tmp = $response = NULL;
if (strpos($mime, 'image/svg') !== 0 && strpos($mime, 'image/') === 0) {
echo $param_callback, '("data:', $mime, ';base64,', base64_encode(file_get_contents($locationFile)), '");';
} else {
echo $param_callback, '("data:', $mime, ',', asciiToInline(file_get_contents($locationFile)), '");';
}
} else {
$tmp = $response = NULL;
$dir_name = dirname($_SERVER['SCRIPT_NAME']);
if ($dir_name === '\\/' || $dir_name === '\\') {
$dir_name = '';
}
if (strpos($locationFile, 'public://') === FALSE) {
$parse_file_location = explode('/', $locationFile);
$locationFile = sprintf('%s/%s', PATH, end($parse_file_location));
}
echo $param_callback, '(', JsonEncodeString(file_create_url($locationFile)), ');';
}
exit;
} else {
$response = array('error' => 'Failed to rename the temporary file');
}
}
}
}
if (is_array($tmp) && isset($tmp['location']) && file_exists($tmp['location'])) {
//remove temporary file if an error occurred
unlink($tmp['location']);
}
//errors
setHeaders(TRUE);
//no-cache
remove_old_files();
echo $param_callback, '(', JsonEncodeString('error: html2canvas-proxy-php: ' . $response['error']), ');';
}