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Support redirection in cURL download callback

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This commit is contained in:
ArthurHoaro 2018-05-01 16:44:51 +02:00
parent 8d2cac1be6
commit a1b727efb7
1 changed files with 13 additions and 4 deletions
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17
application/LinkUtils.php
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@ -11,6 +11,7 @@
*/ */
function get_curl_download_callback(&$charset, &$title, $curlGetInfo = 'curl_getinfo') function get_curl_download_callback(&$charset, &$title, $curlGetInfo = 'curl_getinfo')
{ {
$isRedirected = false;
/** /**
* cURL callback function for CURLOPT_WRITEFUNCTION (called during the download). * cURL callback function for CURLOPT_WRITEFUNCTION (called during the download).
* *
@ -22,16 +23,24 @@ function get_curl_download_callback(&$charset, &$title, $curlGetInfo = 'curl_get
* *
* @return int|bool length of $data or false if we need to stop 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); $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; 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) { if (!empty($contentType) && strpos($contentType, 'text/html') === false) {
return false; return false;
} }
if (empty($charset)) { if (!empty($contentType) && empty($charset)) {
$charset = header_extract_charset($contentType); $charset = header_extract_charset($contentType);
} }
if (empty($charset)) { if (empty($charset)) {