*/
function get_curl_download_callback(&$charset, &$title, $curlGetInfo = 'curl_getinfo')
{
+ $isRedirected = false;
/**
* cURL callback function for CURLOPT_WRITEFUNCTION (called during the download).
*
*
* @return int|bool length of $data or false if we need to stop the download
*/
- return function(&$ch, $data) use ($curlGetInfo, &$charset, &$title) {
+ return function(&$ch, $data) use ($curlGetInfo, &$charset, &$title, &$isRedirected) {
$responseCode = $curlGetInfo($ch, CURLINFO_RESPONSE_CODE);
- if (!empty($responseCode) && $responseCode != 200) {
+ if (!empty($responseCode) && in_array($responseCode, [301, 302])) {
+ $isRedirected = true;
+ return strlen($data);
+ }
+ if (!empty($responseCode) && $responseCode !== 200) {
return false;
}
- $contentType = $curlGetInfo($ch, CURLINFO_CONTENT_TYPE);
+ // After a redirection, the content type will keep the previous request value
+ // until it finds the next content-type header.
+ if (! $isRedirected || strpos(strtolower($data), 'content-type') !== false) {
+ $contentType = $curlGetInfo($ch, CURLINFO_CONTENT_TYPE);
+ }
if (!empty($contentType) && strpos($contentType, 'text/html') === false) {
return false;
}
- if (empty($charset)) {
+ if (!empty($contentType) && empty($charset)) {
$charset = header_extract_charset($contentType);
}
if (empty($charset)) {