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<?php
defined( 'ABSPATH' ) || die( 'No script kiddies please!' );
// generate a unique code, allows for lenght parameter
if ( ! function_exists( 'dnxcf_get_unique_code' ) ) {
function dnxcf_get_unique_code( $length = '' ) {
$code = md5( uniqid( rand(), true ) );
if ( $length != '' ) {
return substr( $code, 0, $length );
} else {
return $code;
}
}
}
// set default options for the plugin
function dnxcf_set_options() {
$defaults = array(
'dnxcf_pid_key' => dnxcf_get_unique_code( 12 ),
'dnxcf_recv_name' => 'admin',
'dnxcf_recv_email' => get_bloginfo( 'admin_email' ),
'dnxcf_from_email' => 'info@some.url',
'dnxcf_from_name' => 'webmaster',
'dnxcf_subject' => array(
__( 'I want to make a comment.', 'dnxcf' ),
__( 'I want to ask a question.', 'dnxcf' ),
__( 'I am interested in a product.', 'dnxcf' ),
__( 'I have to report a problem.', 'dnxcf' ),
__( 'Other (explain below)', 'dnxcf' ),
),
// 1 = text/plain
// 2 = text/html
'dnxcf_content_type' => '1',
'dnxcf_privacy' => '',
'dnxcf_DB_VERSION' => '2',
);
return $defaults;
}
// helper function that starts up the DB
function dnxcf_db_init() {
global $dnxcf_options;
$dnxcf_options = get_option( 'dnxcf_options' );
if ( false === $dnxcf_options ) {
$dnxcf_options = dnxcf_set_options();
}
update_option( 'dnxcf_options', $dnxcf_options );
}
// helper function that performs a DB version update when needed
function dnxcf_db_update( $db_version ) {
global $dnxcf_options;
$db_defaults = dnxcf_set_options();
$merge = wp_parse_args( $dnxcf_options, $db_defaults );
// update DB version
$merge['dnxcf_DB_VERSION'] = $db_version;
update_option( 'dnxcf_options', $merge );
}
// helper function that performs a DB check and then an init/update action
function dnxcf_db_check() {
global $dnxcf_options;
if ( false === $dnxcf_options ) {
dnxcf_db_init();
}
$old_db_version = $dnxcf_options['dnxcf_DB_VERSION'];
$new_db_version = DNXCF_CURRENT_DB_VERSION;
if ( empty( $old_db_version ) ) {
dnxcf_db_init();
}
if ( intval( $old_db_version ) < intval( $new_db_version ) ) {
dnxcf_db_update( $new_db_version );
}
}
// helper function that sets the current DB Version for comparison
/*
* Latest DB version: 5
*/
function dnxcf_set_db_version() {
// Define plugin database version. This should only change when new settings are added.
if ( ! defined( 'DNXCF_CURRENT_DB_VERSION' ) ) {
define( 'DNXCF_CURRENT_DB_VERSION', 5 );
}
}
// set the "from" email name to a custom option specified by the user
function dnxcf_update_from_name() {
global $dnxcf_options;
$dnxcf_options = get_option( 'dnxcf_options' );
$dnxcf_defaults = dnxcf_set_options();
$from_name = $dnxcf_options['dnxcf_from_name'];
$orig_name = 'WordPress';
$name = ( $orig_name != $from_name ) ? $from_name : false;
return $name;
}
if ( dnxcf_update_from_name() ) {
add_filter( 'wp_mail_from_name', 'dnxcf_update_from_name' );
}
// set the "from" email address to a custom option specified by the user
function dnxcf_update_from_email() {
global $dnxcf_options;
$dnxcf_options = get_option( 'dnxcf_options' );
$dnxcf_defaults = dnxcf_set_options();
$from_mail = $dnxcf_options['dnxcf_from_email'];
$orig_mail = $dnxcf_defaults['dnxcf_from_email'];
$mail = ( $orig_mail != $from_mail ) ? $from_mail : false;
return $mail;
}
if ( dnxcf_update_from_email() ) {
add_filter( 'wp_mail_from', 'dnxcf_update_from_email' );
}
/*
* Set the content type for the email
*/
function dnxcf_update_content_type() {
global $dnxcf_options;
$dnxcf_options = get_option( 'dnxcf_options' );
// 1 = text/plain
// 2 = text/html
$content_type = ( '1' == $dnxcf_options['dnxcf_content_type'] ) ? 'text/plain' : 'text/html';
return $content_type;
}
add_filter( 'wp_mail_content_type', 'dnxcf_update_content_type' );
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