<?php

    if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
    
    class WPH_module_general_security_header_cross_origin_embedder_policy extends WPH_module_component
        {
            
            private $headers = array ();
            
            function get_component_title()
                {
                    return "Cross-Origin-Embedder-Policy (COEP)";
                }
                                    
            function get_module_settings()
                {
                    
                    $this->module_settings[]                  =   array(
                                                                    'id'            =>  'cross_origin_embedder_policy',
                                                                                                            
                                                                    'input_type'    =>  'custom',
                                                                                                 
                                                                    'module_option_html_render' =>  array( $this, '_module_option_html' ),
                                                                    'module_option_processing'  =>  array( $this, '_module_option_processing' ),
                                                                    
                                                                    ); 
                  
                                                                    
                    return $this->module_settings; 
    
                }
            
        function set_module_components_description( $component_settings )
                {

                    foreach ( $component_settings   as  $component_key  =>  $component_setting )
                        {
                            if ( ! isset ( $component_setting['id'] ) )
                                continue;
                            
                            switch ( $component_setting['id'] )
                                {
                                    case 'cross_origin_embedder_policy' :
                                                                $component_setting =   array_merge ( $component_setting , array(
                                                                                                                                    'label'         =>  __('Cross-Origin-Embedder-Policy (COEP)',    'wp-hide-security-enhancer'),
                                                                    
                                                                                                                                    'help'          =>  array(
                                                                                                                                                                'title'                     =>  __('Help',    'wp-hide-security-enhancer') . ' - ' . __('Cross-Origin-Embedder-Policy',    'wp-hide-security-enhancer'),
                                                                                                                                                                'description'               =>  __("The HTTP Cross-Origin-Embedder-Policy (COEP) response header prevents a document from loading any cross-origin resources that don't explicitly grant the document permission (using CORP or CORS).",    'wp-hide-security-enhancer') .
                                                                                                                                                                                                "<br /><br />"  . __("Options:",    'wp-hide-security-enhancer') .
                                                                                                                                                                                                "<br /><b>unsafe-none</b> - "  . __("This is the default value. Allows the document to fetch cross-origin resources without giving explicit permission through the CORS protocol or the Cross-Origin-Resource-Policy header.",    'wp-hide-security-enhancer') .
                                                                                                                                                                                                "<br /><b>require-corp</b> - "  . __("A document can only load resources from the same origin, or resources explicitly marked as loadable from another origin. If a cross origin resource supports CORS, the crossorigin attribute or the Cross-Origin-Resource-Policy header must be used to load it without being blocked by COEP.",    'wp-hide-security-enhancer') .
                                                                                                                                                                                                "<br /><b>credentialless</b> - "  . __("A document can load cross-origin resources that are requested in no-cors mode without an explicit permission via the Cross-Origin-Resource-Policy header. In this case requests are sent without credentials: cookies are omitted in the request, and ignored in the response.",    'wp-hide-security-enhancer') ,
                                                                                                                                                                'option_documentation_url'  =>  'https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy',
                                                                                                                                                                'ai_question'               =>  'Help me understand the "Security Headers - Cross-Origin-Embedder-Policy (COEP)" option with WP Hide plugin'
                                                                                                                                                                ), 
                                                                                                                                ) );
                                                                break;
                                                     
                                }
                                
                            $component_settings[ $component_key ]   =   $component_setting;
                        }
                    
                    return $component_settings;
                    
                }
                
            function _get_default_options()
                {
                    
                    $options    =   array ( 
                                            'enabled'           =>  'no',
                                            'value'             =>  'unsafe-none'
                                            );
                    return $options;
                }    
            
            
            function _init_cross_origin_embedder_policy( $saved_field_data )
                {
                    
                }
            
            function _module_option_html( $module_settings )
                {
                    
                    $values =   $this->wph->functions->get_module_item_setting( $module_settings['id'] );
                    $module_settings =   shortcode_atts ( $this->_get_default_options(), (array)$values )        
                    
                    ?>
                        <div class="row xspacer header">
                            <p><?php esc_html_e('Enable Header',    'wp-hide-security-enhancer') ?></p>
                            <fieldset>
                                <label>
                                    <input type="radio" class="setting-value default-value radio" value="no" name="enabled" <?php if ( $module_settings['enabled'] == 'no' ) { ?>checked="checked"<?php } ?>> <span>No</span>
                                </label>
                                <label>
                                    <input type="radio" class="setting-value radio" value="yes" name="enabled" <?php if ( $module_settings['enabled'] == 'yes' ) { ?>checked="checked"<?php } ?>> <span>Yes</span>
                                </label>                                                                
                            </fieldset>
                        </div>
                        
                        <p><b><?php esc_html_e('Header Options',    'wp-hide-security-enhancer') ?></b></p>
                        <div class="row spacer">
                            <fieldset>
                                <label>
                                    <input type="radio" class="radio" value="unsafe-none" name="value" <?php if ( $module_settings['value'] == 'unsafe-none' ) { ?>checked="checked"<?php } ?>> <span>unsafe-none</span>
                                </label>
                                <label>
                                    <input type="radio" class="radio" value="require-corp" name="value" <?php if ( $module_settings['value'] == 'require-corp' ) { ?>checked="checked"<?php } ?>> <span>require-corp</span>
                                </label> 
                                <label>
                                    <input type="radio" class="radio" value="credentialless" name="value" <?php if ( $module_settings['value'] == 'credentialless' ) { ?>checked="checked"<?php } ?>> <span>credentialless</span>
                                </label>                                                                 
                            </fieldset>
                        </div>
 
                        
                    
                    <?php
                }
                
                
            function _module_option_processing( $field_name )
                {
                    
                    $results            =   array();
                    
                    $module_settings =   shortcode_atts ( $this->_get_default_options(), array() );
                    foreach ( $module_settings   as  $setting_name  =>  $setting_value )
                        {
                            if ( ! isset ( $_POST[ $setting_name ] ) )
                                continue;
                                
                            $value  =   preg_replace( '/[^a-zA-Z0-9-_]/m' , '', wp_unslash ( $_POST[ $setting_name ] ) );
                            if ( empty ( $value ) )
                                continue;
                                
                            $module_settings[ $setting_name ]   =   $value;
                        }
                                        
                    $results['value']   =   $module_settings;
                       
                    return $results;
                    
                }
                
                
            function _callback_saved_cross_origin_embedder_policy($saved_field_data)
                {
                    
                    if ( empty ( $saved_field_data ) ||  $saved_field_data['enabled']   ==  'no' )
                        return FALSE;
                        
                    $processing_response    =   array();
                                                         
                    $rewrite                            =  '';
                                        
                    if($this->wph->server_htaccess_config   === TRUE)                               
                        {
                            $rewrite    .=  "\n" . '        Header set Cross-Origin-Embedder-Policy "' . $saved_field_data['value'] .'"';
                        }
                        
                    if($this->wph->server_web_config   === TRUE)
                        {  
                            
                        }
                    
                    $processing_response['rewrite'] =   $rewrite;
                    $processing_response['type']    =   'header';
                                      
                    return  $processing_response;
                    
                } 
            

        }
?>