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Edit File: contact-form-cfdb-7.php

<?php
/*
Plugin name: Contact Form CFDB7
Plugin URI: https://ciphercoin.com/
Description: Save and manage Contact Form 7 messages. Never lose important data. Contact Form CFDB7 plugin is an add-on for the Contact Form 7 plugin.
Author: Arshid
Author URI: http://ciphercoin.com/
Text Domain: contact-form-cfdb7
License: GPL v2 or later
Domain Path: /languages/
Version: 1.3.4
*/

function cfdb7_create_table(){

global $wpdb;
    $cfdb       = apply_filters( 'cfdb7_database', $wpdb );
    $table_name = $cfdb->prefix.'db7_forms';

if( $cfdb->get_var("SHOW TABLES LIKE '$table_name'") != $table_name ) {

$charset_collate = $cfdb->get_charset_collate();

$sql = "CREATE TABLE $table_name (
            form_id bigint(20) NOT NULL AUTO_INCREMENT,
            form_post_id bigint(20) NOT NULL,
            form_value longtext NOT NULL,
            form_date datetime DEFAULT '0000-00-00 00:00:00' NOT NULL,
            PRIMARY KEY  (form_id)
        ) $charset_collate;";

require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
        dbDelta( $sql );
    }

$upload_dir    = wp_upload_dir();
    $cfdb7_dirname = $upload_dir['basedir'].'/cfdb7_uploads';
    if ( ! file_exists( $cfdb7_dirname ) ) {
        wp_mkdir_p( $cfdb7_dirname );
        $fp = fopen( $cfdb7_dirname.'/index.php', 'w');
        fwrite($fp, "<?php \n\t // Silence is golden.");
        fclose( $fp );
    }
    add_option( 'cfdb7_view_install_date', date('Y-m-d G:i:s'), '', 'yes');

}

function cfdb7_on_activate( $network_wide ){

global $wpdb;
    if ( is_multisite() && $network_wide ) {
        $blog_ids = $wpdb->get_col( "SELECT blog_id FROM $wpdb->blogs" );
        foreach ( $blog_ids as $blog_id ) {
            switch_to_blog( $blog_id );
            cfdb7_create_table();
            restore_current_blog();
        }
    } else {
        cfdb7_create_table();
    }

$role = get_role( 'administrator' );
	$role->add_cap( 'cfdb7_access' );
}

register_activation_hook( __FILE__, 'cfdb7_on_activate' );

function cfdb7_upgrade_function( $upgrader_object, $options ) {

$upload_dir    = wp_upload_dir();
    $cfdb7_dirname = $upload_dir['basedir'].'/cfdb7_uploads';

if ( file_exists( $cfdb7_dirname.'/index.php' ) ) return;
        
    if ( file_exists( $cfdb7_dirname ) ) {
        $fp = fopen( $cfdb7_dirname.'/index.php', 'w');
        fwrite($fp, "<?php \n\t // Silence is golden.");
        fclose( $fp );
    }

}

add_action( 'upgrader_process_complete', 'cfdb7_upgrade_function',10, 2);

function cfdb7_on_deactivate() {

global $wp_roles;

foreach( array_keys( $wp_roles->roles ) as $role ) {
		$wp_roles->remove_cap( $role, 'cfdb7_access' );
	}
}

register_deactivation_hook( __FILE__, 'cfdb7_on_deactivate' );

function cfdb7_before_send_mail( $form_tag ) {

global $wpdb;
    $cfdb          = apply_filters( 'cfdb7_database', $wpdb );
    $table_name    = $cfdb->prefix.'db7_forms';
    $upload_dir    = wp_upload_dir();
    $cfdb7_dirname = $upload_dir['basedir'].'/cfdb7_uploads';
    $bytes         = random_bytes(5);
    $time_now      = time().bin2hex($bytes);

$submission   = WPCF7_Submission::get_instance();
    $contact_form = $submission->get_contact_form();
    $tags_names   = array();
    $strict_keys  = apply_filters('cfdb7_strict_keys', false);

if ( $submission ) {

$allowed_tags = array();
        $bl   = array('\"',"\'",'/','\\','"',"'");
        $wl   = array('&quot;','&#039;','&#047;', '&#092;','&quot;','&#039;');

if( $strict_keys ){
            $tags  = $contact_form->scan_form_tags();
            foreach( $tags as $tag ){
                if( ! empty($tag->name) ) $tags_names[] = $tag->name;
            }
            $allowed_tags = $tags_names;
        }

$not_allowed_tags = apply_filters( 'cfdb7_not_allowed_tags', array( 'g-recaptcha-response' ) );
        $allowed_tags     = apply_filters( 'cfdb7_allowed_tags', $allowed_tags );
        $data             = $submission->get_posted_data();
        $files            = $submission->uploaded_files();
        $uploaded_files   = array();

foreach ($_FILES as $file_key => $file) {
            array_push($uploaded_files, $file_key);
        }
        foreach ($files as $file_key => $file) {
            $file = is_array( $file ) ? reset( $file ) : $file;
            if( empty($file) ) continue;
            copy($file, $cfdb7_dirname.'/'.$time_now.'-'.$file_key.'-'.basename($file));
        }

$form_data   = array();

$form_data['cfdb7_status'] = 'unread';
        foreach ($data as $key => $d) {
            
            if( $strict_keys && !in_array($key, $allowed_tags) ) continue;

if ( !in_array($key, $not_allowed_tags ) && !in_array($key, $uploaded_files )  ) {

$tmpD = $d;

if ( ! is_array($d) ){
                    $tmpD = str_replace($bl, $wl, $tmpD );
                }else{
                    $tmpD = array_map(function($item) use($bl, $wl){
                               return str_replace($bl, $wl, $item ); 
                            }, $tmpD);
                }

$key = sanitize_text_field( $key );
                $form_data[$key] = $tmpD;
            }
            if ( in_array($key, $uploaded_files ) ) {
                $file = is_array( $files[ $key ] ) ? reset( $files[ $key ] ) : $files[ $key ];
                $file_name = empty( $file ) ? '' : $time_now.'-'.$key.'-'.basename( $file ); 
                $key = sanitize_text_field( $key );
                $form_data[$key.'cfdb7_file'] = sanitize_text_field($file_name);
            }
        }

$form_data = apply_filters('cfdb7_before_save_data', $form_data);

do_action( 'cfdb7_before_save', $form_data );

$form_post_id = $form_tag->id();
        $form_value   = serialize( $form_data );
        $form_date    = current_time('Y-m-d H:i:s');

$cfdb->insert( $table_name, array(
            'form_post_id' => $form_post_id,
            'form_value'   => $form_value,
            'form_date'    => $form_date
        ) );

$insert_id = $cfdb->insert_id;
        do_action( 'cfdb7_after_save_data', $insert_id, $form_data );
    }

}

add_action( 'wpcf7_before_send_mail', 'cfdb7_before_send_mail' );

add_action( 'init', 'cfdb7_init');

/**
 * CFDB7 cfdb7_init and cfdb7_admin_init
 * Admin setting
 */
function cfdb7_init(){

do_action( 'cfdb7_init' );

if( is_admin() ){

require_once 'inc/admin-mainpage.php';
        require_once 'inc/admin-subpage.php';
        require_once 'inc/admin-form-details.php';
        require_once 'inc/export-csv.php';

do_action( 'cfdb7_admin_init' );

$csv = new CFDB7_Export_CSV();
        if( isset($_REQUEST['csv']) && ( $_REQUEST['csv'] == true ) && isset( $_REQUEST['nonce'] ) ) {

$nonce  = $_REQUEST['nonce'];

if ( ! wp_verify_nonce( $nonce, 'dnonce' ) ) wp_die('Invalid nonce..!!');

$csv->download_csv_file();
        }
        new Cfdb7_Wp_Main_Page();
    }
}

add_action( 'admin_notices', 'cfdb7_admin_notice' );
add_action('admin_init', 'cfdb7_view_ignore_notice' );

function cfdb7_admin_notice() {

$install_date = get_option( 'cfdb7_view_install_date', '');
    $install_date = date_create( $install_date );
    $date_now     = date_create( date('Y-m-d G:i:s') );
    $date_diff    = date_diff( $install_date, $date_now );

if ( $date_diff->format("%d") < 7 ) {

return false;
    }

if ( ! get_option( 'cfdb7_view_ignore_notice' ) ) {

echo '<div class="updated"><p>';

printf(
            __( 'Awesome, you\'ve been using <a href="admin.php?page=cfdb7-list.php">Contact Form CFDB7</a> for more than 1 week. May we ask you to give it a 5-star rating on WordPress? | <a href="%2$s" target="_blank">Ok, you deserved it</a> | <a href="%1$s">I already did</a> | <a href="%1$s">No, not good enough</a>', 
		        'contact-form-cfdb7' 
		    ), 
            add_query_arg('cfdb7-ignore-notice', 0, admin_url()),
            'https://wordpress.org/plugins/contact-form-cfdb7/'
        );
        echo "</p></div>";
    }
}

function cfdb7_view_ignore_notice() {

if ( isset($_GET['cfdb7-ignore-notice']) && '0' == $_GET['cfdb7-ignore-notice'] ) {

update_option( 'cfdb7_view_ignore_notice', 'true' );
    }
}

/**
 * Plugin settings link
 * @param  array $links list of links
 * @return array of links
 */
function cfdb7_settings_link( $links ) {
    $forms_link = '<a href="admin.php?page=cfdb7-list.php">' . __( 'Submissions', 'contact-form-cfdb7' ) . '</a>';
    array_unshift($links, $forms_link);
    return $links;
}

$plugin = plugin_basename(__FILE__);
add_filter("plugin_action_links_$plugin", 'cfdb7_settings_link' );

/**
 * Load language files to enable plugin translation
 *
 * @since 1.2.4.1
 */
function cfdb7_load_textdomain() {
	load_plugin_textdomain( 'contact-form-cfdb7', false, basename( dirname( __FILE__ ) ) . '/languages' );
}
add_action( 'plugins_loaded', 'cfdb7_load_textdomain' );

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