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<?php
/**
* Checks for resources being loaded from CDNs.
*
* @package Theme Check
*/
/**
* Checks for resources being loaded from CDNs.
*
* Checks for resources being loaded from CDNs. Usage of CDN is required to be removed.
*/
class CDN_Check implements themecheck {
/**
* Error messages, warnings and info notices.
*
* @var array $error
*/
protected $error = array();
/**
* Check that return true for good/okay/acceptable, false for bad/not-okay/unacceptable.
*
* @param array $php_files File paths and content for PHP files.
* @param array $css_files File paths and content for CSS files.
* @param array $other_files Folder names, file paths and content for other files.
*/
public function check( $php_files, $css_files, $other_files ) {
$ret = true;
$php_code = implode( ' ', $php_files );
$css_code = implode( ' ', $css_files );
$all_code = $php_code . ' ' . $css_code;
checkcount();
$cdn_list = array(
'bootstrap-maxcdn' => 'maxcdn.bootstrapcdn.com',
'bootstrap-netdna' => 'netdna.bootstrapcdn.com',
'bootstrap-stackpath' => 'stackpath.bootstrapcdn.com',
'fontawesome' => 'kit.fontawesome.com',
'googlecode' => 'googlecode.com/svn/',
'oss.maxcdn' => 'oss.maxcdn.com',
'jquery' => 'code.jquery.com/jquery-',
'aspnetcdn' => 'aspnetcdn.com',
'cloudflare' => 'cloudflare.com',
'keycdn' => 'keycdn.com',
'pxgcdn' => 'pxgcdn.com',
'vimeocdn' => 'vimeocdn.com', // Usually in JS files.
);
foreach ( $cdn_list as $cdn_slug => $cdn_url ) {
if ( false !== strpos( $all_code, $cdn_url ) ) {
$this->error[] = sprintf(
'<span class="tc-lead tc-required">%s</span>: %s',
__( 'REQUIRED', 'theme-check' ),
sprintf(
__( 'Found the URL of a CDN in the code: %s. You should not load CSS or Javascript resources from a CDN, please bundle them with the theme.', 'theme-check' ),
'<code>' . esc_html( $cdn_url ) . '</code>'
)
);
$ret = false;
}
}
return $ret;
}
/**
* Get error messages from the checks.
*
* @return array Error message.
*/
public function getError() {
return $this->error;
}
}
$themechecks[] = new CDN_Check();