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Add option to set frame-ancestors CSP

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This commit is contained in:
Joshua Ramon Enslin 2020-11-22 23:27:54 +01:00
parent 90997e4eb5
commit a16619b78e
Signed by: jrenslin
GPG Key ID: 46016F84501B70AE
1 changed files with 10 additions and 3 deletions
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13
MD_STD_SEC.php
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@ -126,13 +126,20 @@ final class MD_STD_SEC {
/**
* Send CSP headers.
*
* @param array{default-src: string, connect-src: string, script-src: string, img-src: string, media-src: string, style-src: string, frame-src: string, object-src: string, base-uri: string, form-action: string} $directives Directives to send. Font source is always set to 'self', and hence excluded.
* @param array{default-src: string, connect-src: string, script-src: string, img-src: string, media-src: string, style-src: string, frame-src: string, object-src: string, base-uri: string, form-action: string, frame-ancestors?: string} $directives Directives to send. Font source is always set to 'self', and hence excluded.
* @param string $frame_ancestors Frame ancestors directive. Default is to not set it.
*
* @return void
*/
public static function sendContentSecurityPolicy(array $directives):void {
public static function sendContentSecurityPolicy(array $directives, string $frame_ancestors = ""):void {
header('Content-Security-Policy: default-src ' . $directives['default-src'] . '; connect-src ' . $directives['connect-src'] . '; script-src ' . $directives['script-src'] . '; img-src ' . $directives['img-src'] . '; media-src ' . $directives['media-src'] . '; style-src ' . $directives['style-src'] . '; font-src \'self\'; frame-src ' . $directives['frame-src'] . '; object-src ' . $directives['object-src'] . '; base-uri ' . $directives['base-uri'] . '; form-action ' . $directives['form-action'] . '; manifest-src \'self\'');
$policy = 'Content-Security-Policy: default-src ' . $directives['default-src'] . '; connect-src ' . $directives['connect-src'] . '; script-src ' . $directives['script-src'] . '; img-src ' . $directives['img-src'] . '; media-src ' . $directives['media-src'] . '; style-src ' . $directives['style-src'] . '; font-src \'self\'; frame-src ' . $directives['frame-src'] . '; object-src ' . $directives['object-src'] . '; base-uri ' . $directives['base-uri'] . '; form-action ' . $directives['form-action'] . '; manifest-src \'self\';';
if (!empty($frame_ancestors)) {
$policy .= ' frame-ancestors ' . $frame_ancestors . ';';
}
header($policy);
}
}