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<?php |
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|
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/** |
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* Class Optml_Filters. |
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* |
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* @package \Optml\Inc |
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* @author Optimole <friends@optimole.com> |
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*/ |
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final class Optml_Filters { |
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|
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/** |
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* Generic method to check if the page is allowed to do the action. |
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* |
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* @param array $contains_flags Contains flags array. |
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* @param array $match_flags Exact path match flags array. |
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* @return bool Should do action on page? |
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*/ |
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public static function should_do_page( $contains_flags, $match_flags ) { |
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|
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if ( empty( $contains_flags ) && empty( $match_flags ) ) { |
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return true; |
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} |
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|
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if ( ! isset( $_SERVER['REQUEST_URI'] ) ) { |
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return true; |
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} |
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|
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$check_against = [ $_SERVER['REQUEST_URI'] ]; |
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// This code is designed to handle ajax requests on pages that are excluded. |
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// For ajax requests, the referer is set to the page URL and they use a POST method. |
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// If an ajax request uses a GET method, it can be managed using the available exclusion rules. |
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if ( isset( $_SERVER['HTTP_REFERER'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) { |
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$check_against[] = $_SERVER['HTTP_REFERER']; |
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} |
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foreach ( $check_against as $check ) { |
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foreach ( $match_flags as $rule_flag => $status ) { |
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if ( $rule_flag === $check ) { |
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return false; |
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} |
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} |
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foreach ( $contains_flags as $rule_flag => $status ) { |
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if ( strpos( $check, $rule_flag ) !== false ) { |
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return false; |
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} |
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if ( $rule_flag === 'home' && ( empty( $check ) || $check === '/' ) ) { |
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return false; |
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} |
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} |
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} |
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|
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return true; |
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} |
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|
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/** |
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* Check if image qualifies for processing. |
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* |
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* @param string $image_url Image url. |
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* @param array $flags Flags array. |
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* |
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* @return bool Should we process the image? |
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*/ |
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public static function should_do_image( $image_url, $flags ) { |
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|
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foreach ( $flags as $rule_flag => $status ) { |
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if ( strpos( $image_url, $rule_flag ) !== false ) { |
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return false; |
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} |
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} |
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|
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return true; |
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} |
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|
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/** |
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* |
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* Check if the image should be processed based on the extension. |
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* |
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* @param array $flags Flags array. |
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* @param string $ext Extension string. |
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* |
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* @return bool|string Should we do the processing? |
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*/ |
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public static function should_do_extension( $flags, $ext ) { |
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foreach ( $flags as $rule_flag => $status ) { |
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if ( $rule_flag === $ext ) { |
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return false; |
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} |
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} |
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|
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return $ext; |
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} |
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} |
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|
