[BUG] PHP Fatal error: Uncaught TypeError: strspn(): Argument #1 ($string) must be of type string, null given in /framework/simplepie/src/Content/Type/Sniffer.php:153 #810
Description
IMPORTANT: If you are posting code or output, please make sure you wrap it with fenced code blocks so that it is readable.
Description
$ws = strspn($this->file->body, "\x09\x0A\x0B\x0C\x0D\x20"); - simplepie/src/Content/Type/Sniffer.php:153
$this->file->body is empty.
Steps to Reproduce
it's maybe a empty resource where the DOM HTML is empty.
Expected Behavior
skip invalid RSS-Source.
Actual Behavior
Fatal error cron job exits.
Possible Solutions
strlen() Check should work to avoid strspn() to crash.
if(!is_null($this->file->body)) {
$ws = strspn($this->file->body, "\x09\x0A\x0B\x0C\x0D\x20");
if (strtolower(substr($this->file->body, $ws, 14)) === '<!doctype html'
|| strtolower(substr($this->file->body, $ws, 5)) === '<html'
|| strtolower(substr($this->file->body, $ws, 7)) === '<script') {
return 'text/html';
} elseif (substr($this->file->body, 0, 5) === '%PDF-') {
return 'application/pdf';
} elseif (substr($this->file->body, 0, 11) === '%!PS-Adobe-') {
return 'application/postscript';
} elseif (substr($this->file->body, 0, 6) === 'GIF87a'
|| substr($this->file->body, 0, 6) === 'GIF89a') {
return 'image/gif';
} elseif (substr($this->file->body, 0, 8) === "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A") {
return 'image/png';
} elseif (substr($this->file->body, 0, 3) === "\xFF\xD8\xFF") {
return 'image/jpeg';
} elseif (substr($this->file->body, 0, 2) === "\x42\x4D") {
return 'image/bmp';
} elseif (substr($this->file->body, 0, 4) === "\x00\x00\x01\x00") {
return 'image/vnd.microsoft.icon';
}
return $this->text_or_binary();
}
Environment
Debian 10 with PHP 8.2