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form.php
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form.php
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<?php
/*
Plugin Name: Radium Forms
Description: Add a contact form to any post, page or text widget. Emails will be sent to the post's author by default, or any email address you choose.
Plugin URI: http://radiumthemes.com/
AUthor: RadiumThemes.
Author URI: http://radiumthemes.com/
Version: 1.0
License: GPLv2 or later
*/
define( 'RADIUM_FORMS_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
define( 'RADIUM_FORMS_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
define( 'RADIUM_FORMS_VERSION', '2.4');
require_once RADIUM_FORMS_PLUGIN_DIR . '/integrate.php';
if ( is_admin() )
require_once RADIUM_FORMS_PLUGIN_DIR . '/admin.php';
/**
* Sets up various actions, filters, post types, post statuses, shortcodes.
*/
class Radium_Contact_Form_Plugin {
/**
* @var string The Widget ID of the widget currently being processed. Used to build the unique contact-form ID for forms embedded in widgets.
*/
var $current_widget_id;
static function init() {
static $instance = false;
if ( !$instance ) {
$instance = new Radium_Contact_Form_Plugin;
}
return $instance;
}
/**
* Strips HTML tags from input. Output is NOT HTML safe.
*
* @param string $string
* @return string
*/
static function strip_tags( $string ) {
$string = wp_kses( $string, array() );
return str_replace( '&', '&', $string ); // undo damage done by wp_kses_normalize_entities()
}
function __construct() {
$this->add_shortcode();
// While generating the output of a text widget with a contact-form shortcode, we need to know its widget ID.
add_action( 'dynamic_sidebar', array( $this, 'track_current_widget' ) );
// Add a "widget" shortcode attribute to all contact-form shortcodes embedded in widgets
add_filter( 'widget_text', array( $this, 'widget_atts' ), 0 );
// If Text Widgets don't get shortcode processed, hack ours into place.
if ( !has_filter( 'widget_text', 'do_shortcode' ) )
add_filter( 'widget_text', array( $this, 'widget_shortcode_hack' ), 5 );
// Akismet to the rescue
if ( function_exists( 'akismet_http_post' ) ) {
add_filter( 'contact_form_is_spam', array( $this, 'is_spam_akismet' ), 10 );
add_action( 'contact_form_akismet', array( $this, 'akismet_submit' ), 10, 2 );
}
add_action( 'loop_start', array( 'Radium_Contact_Form', '_style_on' ) );
// custom post type we'll use to keep copies of the feedback items
register_post_type( 'feedback', array(
'labels' => array(
'name' => __( 'Feedback', 'radium' ),
'singular_name' => __( 'Feedback', 'radium' ),
'search_items' => __( 'Search Feedback', 'radium' ),
'not_found' => __( 'No feedback found', 'radium' ),
'not_found_in_trash' => __( 'No feedback found', 'radium' )
),
'menu_icon' => RADIUM_FORMS_PLUGIN_URL . '/images/grunion-menu.png',
'show_ui' => TRUE,
'show_in_admin_bar' => FALSE,
'public' => FALSE,
'rewrite' => FALSE,
'query_var' => FALSE,
'capability_type' => 'page',
'menu_position' => 60
) );
// Add "spam" as a post status
register_post_status( 'spam', array(
'label' => 'Spam',
'public' => FALSE,
'exclude_from_search' => TRUE,
'show_in_admin_all_list' => FALSE,
'label_count' => _n_noop( 'Spam <span class="count">(%s)</span>', 'Spam <span class="count">(%s)</span>', 'radium' ),
'protected' => TRUE,
'_builtin' => FALSE
) );
// POST handler
if (
'POST' == strtoupper( $_SERVER['REQUEST_METHOD'] )
&&
isset( $_POST['action'] ) && 'grunion-contact-form' == $_POST['action']
&&
isset( $_POST['contact-form-id'] )
) {
add_action( 'template_redirect', array( $this, 'process_form_submission' ) );
}
/* Can be dequeued by placing the following in wp-content/themes/yourtheme/functions.php
*
* function remove_grunion_style() {
* wp_deregister_style('grunion.css');
* }
* add_action('wp_print_styles', 'remove_grunion_style');
*/
wp_register_style( 'radium-forms', RADIUM_FORMS_PLUGIN_URL . 'css/radium-forms.css', array(), RADIUM_FORMS_VERSION );
}
/**
* Handles all contact-form POST submissions
*
* Conditionally attached to `template_redirect`
*/
function process_form_submission() {
$id = stripslashes( $_POST['contact-form-id'] );
check_admin_referer( "contact-form_{$id}" );
$is_widget = 0 === strpos( $id, 'widget-' );
$form = false;
if ( $is_widget ) {
// It's a form embedded in a text widget
$this->current_widget_id = substr( $id, 7 ); // remove "widget-"
// Is the widget active?
$sidebar = is_active_widget( false, $this->current_widget_id, 'text' );
// This is lame - no core API for getting a widget by ID
$widget = isset( $GLOBALS['wp_registered_widgets'][$this->current_widget_id] ) ? $GLOBALS['wp_registered_widgets'][$this->current_widget_id] : false;
if ( $sidebar && $widget && isset( $widget['callback'] ) ) {
// This is lamer - no API for outputting a given widget by ID
ob_start();
// Process the widget to populate Radium_Contact_Form::$last
call_user_func( $widget['callback'], array(), $widget['params'][0] );
ob_end_clean();
}
} else {
// It's a form embedded in a post
$post = get_post( $id );
// Process the content to populate Radium_Contact_Form::$last
apply_filters( 'the_content', $post->post_content );
}
$form = Radium_Contact_Form::$last;
if ( !$form || ( is_wp_error( $form->errors ) && $form->errors->get_error_codes() ) ) {
return;
}
// Process the form
$form->process_submission();
}
/**
* Ensure the post author is always zero for contact-form feedbacks
* Attached to `wp_insert_post_data`
*
* @see Radium_Contact_Form::process_submission()
*
* @param array $data the data to insert
* @param array $postarr the data sent to wp_insert_post()
* @return array The filtered $data to insert
*/
function insert_feedback_filter( $data, $postarr ) {
if ( $data['post_type'] == 'feedback' && $postarr['post_type'] == 'feedback' ) {
$data['post_author'] = 0;
}
return $data;
}
/*
* Adds our contact-form shortcode
* The "child" contact-field shortcode is added as needed by the contact-form shortcode handler
*/
function add_shortcode() {
add_shortcode( 'contact-form', array( 'Radium_Contact_Form', 'parse' ) );
}
/**
* Tracks the widget currently being processed.
* Attached to `dynamic_sidebar`
*
* @see $current_widget_id
*
* @param array $widget The widget data
*/
function track_current_widget( $widget ) {
$this->current_widget_id = $widget['id'];
}
/**
* Adds a "widget" attribute to every contact-form embedded in a text widget.
* Used to tell the difference between post-embedded contact-forms and widget-embedded contact-forms
* Attached to `widget_text`
*
* @param string $text The widget text
* @return string The filtered widget text
*/
function widget_atts( $text ) {
Radium_Contact_Form::style( true );
return preg_replace( '/\[contact-form([^a-zA-Z_-])/', '[contact-form widget="' . $this->current_widget_id . '"\\1', $text );
}
/**
* For sites where text widgets are not processed for shortcodes, we add this hack to process just our shortcode
* Attached to `widget_text`
*
* @param string $text The widget text
* @return string The contact-form filtered widget text
*/
function widget_shortcode_hack( $text ) {
if ( !preg_match( '/\[contact-form([^a-zA-Z_-])/', $text ) ) {
return $text;
}
$old = $GLOBALS['shortcode_tags'];
remove_all_shortcodes();
$this->add_shortcode();
$text = do_shortcode( $text );
$GLOBALS['shortcode_tags'] = $old;
return $text;
}
/**
* Populate an array with all values necessary to submit a NEW contact-form feedback to Akismet.
* Note that this includes the current user_ip etc, so this should only be called when accepting a new item via $_POST
*
* @param array $form Contact form feedback array
* @return array feedback array with additional data ready for submission to Akismet
*/
function prepare_for_akismet( $form ) {
$form['comment_type'] = 'contact_form';
$form['user_ip'] = preg_replace( '/[^0-9., ]/', '', $_SERVER['REMOTE_ADDR'] );
$form['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
$form['referrer'] = $_SERVER['HTTP_REFERER'];
$form['blog'] = get_option( 'home' );
$ignore = array( 'HTTP_COOKIE' );
foreach ( $_SERVER as $k => $value )
if ( !in_array( $k, $ignore ) && is_string( $value ) )
$form["$k"] = $value;
return $form;
}
/**
* Submit contact-form data to Akismet to check for spam.
* If you're accepting a new item via $_POST, run it Radium_Contact_Form_Plugin::prepare_for_akismet() first
* Attached to `contact_form_is_spam`
*
* @param array $form
* @return bool|WP_Error TRUE => spam, FALSE => not spam, WP_Error => stop processing entirely
*/
function is_spam_akismet( $form ) {
global $akismet_api_host, $akismet_api_port;
if ( !function_exists( 'akismet_http_post' ) )
return false;
$query_string = http_build_query( $form );
$response = akismet_http_post( $query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port );
$result = false;
if ( 'true' == trim( $response[1] ) ) // 'true' is spam
$result = true;
return apply_filters( 'contact_form_is_spam_akismet', $result, $form );
}
/**
* Submit a feedback as either spam or ham
*
* @param string $as Either 'spam' or 'ham'.
* @param array $form the contact-form data
*/
function akismet_submit( $as, $form ) {
global $akismet_api_host, $akismet_api_port;
if ( !in_array( $as, array( 'ham', 'spam' ) ) )
return false;
$query_string = http_build_query( $form );
$response = akismet_http_post( $query_string, $akismet_api_host, "/1.1/submit-{$as}", $akismet_api_port );
return trim( $response[1] );
}
}
/**
* Generic shortcode class.
* Does nothing other than store structured data and output the shortcode as a string
*
* Not very general - specific to Grunion.
*/
class Radium_Contact_Form_Shortcode {
/**
* @var string the name of the shortcode: [$shortcode_name /]
*/
var $shortcode_name;
/**
* @var array key => value pairs for the shortcode's attributes: [$shortcode_name key="value" ... /]
*/
var $attributes;
/**
* @var array key => value pair for attribute defaults
*/
var $defaults = array();
/**
* @var null|string Null for selfclosing shortcodes. Hhe inner content of otherwise: [$shortcode_name]$content[/$shortcode_name]
*/
var $content;
/**
* @var array Associative array of inner "child" shortcodes equivalent to the $content: [$shortcode_name][child 1/][child 2/][/$shortcode_name]
*/
var $fields;
/**
* @var null|string The HTML of the parsed inner "child" shortcodes". Null for selfclosing shortcodes.
*/
var $body;
/**
* @param array $attributes An associative array of shortcode attributes. @see shortcode_atts()
* @param null|string $content Null for selfclosing shortcodes. The inner content otherwise.
*/
function __construct( $attributes, $content = null ) {
$this->attributes = $this->unesc_attr( $attributes );
if ( is_array( $content ) ) {
$string_content = '';
foreach ( $content as $field ) {
$string_content .= (string) $field;
}
$this->content = $string_content;
} else {
$this->content = $content;
}
$this->parse_content( $content );
}
/**
* Processes the shortcode's inner content for "child" shortcodes
*
* @param string $content The shortcode's inner content: [shortcode]$content[/shortcode]
*/
function parse_content( $content ) {
if ( is_null( $content ) ) {
$this->body = null;
}
$this->body = do_shortcode( $content );
}
/**
* Returns the value of the requested attribute.
*
* @param string $key The attribute to retrieve
* @return mixed
*/
function get_attribute( $key ) {
return isset( $this->attributes[$key] ) ? $this->attributes[$key] : null;
}
function esc_attr( $value ) {
if ( is_array( $value ) ) {
return array_map( array( $this, 'esc_attr' ), $value );
}
$value = Radium_Contact_Form_Plugin::strip_tags( $value );
$value = _wp_specialchars( $value, ENT_QUOTES, false, true );
// Shortcode attributes can't contain "]"
$value = str_replace( ']', '', $value );
$value = str_replace( ',', ',', $value ); // store commas encoded
$value = strtr( $value, array( '%' => '%25', '&' => '%26' ) );
// shortcode_parse_atts() does stripcslashes()
$value = addslashes( $value );
return $value;
}
function unesc_attr( $value ) {
if ( is_array( $value ) ) {
return array_map( array( $this, 'unesc_attr' ), $value );
}
// For back-compat with old Grunion encoding
// Also, unencode commas
$value = strtr( $value, array( '%26' => '&', '%25' => '%' ) );
$value = preg_replace( array( '/�*22;/i', '/�*27;/i', '/�*26;/i', '/�*2c;/i' ), array( '"', "'", '&', ',' ), $value );
$value = htmlspecialchars_decode( $value, ENT_QUOTES );
$value = Radium_Contact_Form_Plugin::strip_tags( $value );
return $value;
}
/**
* Generates the shortcode
*/
function __toString() {
$r = "[{$this->shortcode_name} ";
foreach ( $this->attributes as $key => $value ) {
if ( !$value ) {
continue;
}
if ( isset( $this->defaults[$key] ) && $this->defaults[$key] == $value ) {
continue;
}
if ( 'id' == $key ) {
continue;
}
$value = $this->esc_attr( $value );
if ( is_array( $value ) ) {
$value = join( ',', $value );
}
if ( false === strpos( $value, "'" ) ) {
$value = "'$value'";
} elseif ( false === strpos( $value, '"' ) ) {
$value = '"' . $value . '"';
} else {
// Shortcodes can't contain both '"' and "'". Strip one.
$value = str_replace( "'", '', $value );
$value = "'$value'";
}
$r .= "{$key}={$value} ";
}
$r = rtrim( $r );
if ( $this->fields ) {
$r .= ']';
foreach ( $this->fields as $field ) {
$r .= (string) $field;
}
$r .= "[/{$this->shortcode_name}]";
} else {
$r .= '/]';
}
return $r;
}
}
/**
* Class for the contact-form shortcode.
* Parses shortcode to output the contact form as HTML
* Sends email and stores the contact form response (a.k.a. "feedback")
*/
class Radium_Contact_Form extends Radium_Contact_Form_Shortcode {
var $shortcode_name = 'contact-form';
/**
* @var WP_Error stores form submission errors
*/
var $errors;
/**
* @var Radium_Contact_Form The most recent (inclusive) contact-form shortcode processed
*/
static $last;
/**
* @var bool Whether to print the grunion.css style when processing the contact-form shortcode
*/
static $style = false;
function __construct( $attributes, $content = null ) {
global $post;
// Set up the default subject and recipient for this form
$default_to = get_option( 'admin_email' );
$default_subject = "[" . get_option( 'blogname' ) . "]";
if ( !empty( $attributes['widget'] ) && $attributes['widget'] ) {
$attributes['id'] = 'widget-' . $attributes['widget'];
$default_subject = sprintf( _x( '%1$s Sidebar', '%1$s = blog name', 'radium' ), $default_subject );
} else if ( $post ) {
$attributes['id'] = $post->ID;
$default_subject = sprintf( _x( '%1$s %2$s', '%1$s = blog name, %2$s = post title', 'radium' ), $default_subject, Radium_Contact_Form_Plugin::strip_tags( $post->post_title ) );
$post_author = get_userdata( $post->post_author );
$default_to = $post_author->user_email;
}
$this->defaults = array(
'to' => $default_to,
'subject' => $default_subject,
'show_subject' => 'no', // only used in back-compat mode
'widget' => 0, // Not exposed to the user. Works with Radium_Contact_Form_Plugin::widget_atts()
'id' => null, // Not exposed to the user. Set above.
);
$attributes = shortcode_atts( $this->defaults, $attributes );
// We only add the contact-field shortcode temporarily while processing the contact-form shortcode
add_shortcode( 'contact-field', array( $this, 'parse_contact_field' ) );
parent::__construct( $attributes, $content );
// There were no fields in the contact form. The form was probably just [contact-form /]. Build a default form.
if ( empty( $this->fields ) ) {
// same as the original Grunion v1 form
$default_form = '
[contact-field label="' . __( 'Name', 'radium' ) . '" type="name" required="true" /]
[contact-field label="' . __( 'Email', 'radium' ) . '" type="email" required="true" /]
[contact-field label="' . __( 'Website', 'radium' ) . '" type="url" /]';
if ( 'yes' == strtolower( $this->get_attribute( 'show_subject' ) ) ) {
$default_form .= '
[contact-field label="' . __( 'Subject', 'radium' ) . '" type="subject" /]';
}
$default_form .= '
[contact-field label="' . __( 'Message', 'radium' ) . '" type="textarea" /]';
$this->parse_content( $default_form );
}
// $this->body and $this->fields have been setup. We no longer need the contact-field shortcode.
remove_shortcode( 'contact-field' );
}
/**
* Toggle for printing the grunion.css stylesheet
*
* @param bool $style
*/
static function style( $style ) {
$previous_style = self::$style;
self::$style = (bool) $style;
return $previous_style;
}
/**
* Turn on printing of grunion.css stylesheet
* @see ::style()
* @internal
* @param bool $style
*/
static function _style_on() {
return self::style( true );
}
/**
* The contact-form shortcode processor
*
* @param array $attributes Key => Value pairs as parsed by shortcode_parse_atts()
* @param string|null $content The shortcode's inner content: [contact-form]$content[/contact-form]
* @return string HTML for the concat form.
*/
static function parse( $attributes, $content ) {
// Create a new Radium_Contact_Form object (this class)
$form = new Radium_Contact_Form( $attributes, $content );
$id = $form->get_attribute( 'id' );
if ( !$id ) { // something terrible has happened
return '[contact-form]';
}
if ( apply_filters( 'jetpack_bail_on_shortcode', false, 'contact-form' ) || is_feed() ) {
return '[contact-form]';
}
// Only allow one contact form per post/widget
if ( self::$last && $id == self::$last->get_attribute( 'id' ) ) {
// We're processing the same post
if ( self::$last->attributes != $form->attributes || self::$last->content != $form->content ) {
// And we're processing a different shortcode;
return '';
} // else, we're processing the same shortcode - probably a separate run of do_shortcode() - let it through
} else {
self::$last = $form;
}
// Enqueue the grunion.css stylesheet if self::$style allows it
if ( self::$style && ( empty( $_REQUEST['action'] ) || $_REQUEST['action'] != 'grunion_shortcode_to_json' ) ) {
// Enqueue the style here instead of printing it, because if some other plugin has run the_post()+rewind_posts(),
// (like VideoPress does), the style tag gets "printed" the first time and discarded, leaving the contact form unstyled.
// when WordPress does the real loop.
wp_enqueue_style( 'radium-forms.css' );
}
$r = '';
$r .= "<div id='contact-form-$id'>\n";
if ( is_wp_error( $form->errors ) && $form->errors->get_error_codes() ) {
// There are errors. Display them
$r .= "<div class='form-error'>\n<h3>" . __( 'Error!', 'radium' ) . "</h3>\n<ul class='form-errors'>\n";
foreach ( $form->errors->get_error_messages() as $message )
$r .= "\t<li class='form-error-message'>" . esc_html( $message ) . "</li>\n";
$r .= "</ul>\n</div>\n\n";
}
if ( isset( $_GET['contact-form-id'] ) && $_GET['contact-form-id'] == self::$last->get_attribute( 'id' ) && isset( $_GET['contact-form-sent'] ) ) {
// The contact form was submitted. Show the success message/results
$feedback_id = (int) $_GET['contact-form-sent'];
$back_url = remove_query_arg( array( 'contact-form-id', 'contact-form-sent', '_wpnonce' ) );
$r_success_message =
"<h3>" . __( 'Message Sent', 'radium' ) .
' (<a href="' . esc_url( $back_url ) . '">' . esc_html__( 'go back', 'radium' ) . '</a>)' .
"</h3>\n\n";
// Don't show the feedback details unless the nonce matches
if ( $feedback_id && wp_verify_nonce( stripslashes( $_GET['_wpnonce'] ), "contact-form-sent-{$feedback_id}" ) ) {
$feedback = get_post( $feedback_id );
$field_ids = $form->get_field_ids();
// Maps field_ids to post_meta keys
$field_value_map = array(
'name' => 'author',
'email' => 'author_email',
'url' => 'author_url',
'subject' => 'subject',
'textarea' => false, // not a post_meta key. This is stored in post_content
);
$contact_form_message = "<blockquote>\n";
// "Standard" field whitelist
foreach ( $field_value_map as $type => $meta_key ) {
if ( isset( $field_ids[$type] ) ) {
$field = $form->fields[$field_ids[$type]];
if ( $meta_key ) {
$value = get_post_meta( $feedback_id, "_feedback_{$meta_key}", true );
} else {
// The feedback content is stored as the first "half" of post_content
$value = $feedback->post_content;
list( $value ) = explode( '<!--more-->', $value );
$value = trim( $value );
}
$contact_form_message .= sprintf(
_x( '%1$s: %2$s', '%1$s = form field label, %2$s = form field value', 'radium' ),
wp_kses( $field->get_attribute( 'label' ), array() ),
wp_kses( $value, array() )
) . '<br />';
}
}
// "Non-standard" fields
if ( $field_ids['extra'] ) {
// array indexed by field label (not field id)
$extra_fields = get_post_meta( $feedback_id, '_feedback_extra_fields', true );
foreach ( $field_ids['extra'] as $field_id ) {
$field = $form->fields[$field_id];
$label = $field->get_attribute( 'label' );
$contact_form_message .= sprintf(
_x( '%1$s: %2$s', '%1$s = form field label, %2$s = form field value', 'radium' ),
wp_kses( $label, array() ),
wp_kses( $extra_fields[$label], array() )
) . '<br />';
}
}
$contact_form_message .= "</blockquote><br /><br />";
$r_success_message .= wp_kses( $contact_form_message, array( 'br' => array(), 'blockquote' => array() ) );
}
$r .= apply_filters( 'grunion_contact_form_success_message', $r_success_message );
} else {
// Nothing special - show the normal contact form
if ( $form->get_attribute( 'widget' ) ) {
// Submit form to the current URL
$url = remove_query_arg( array( 'contact-form-id', 'contact-form-sent', 'action', '_wpnonce' ) );
} else {
// Submit form to the post permalink
$url = get_permalink();
}
// May eventually want to send this to admin-post.php...
$url = apply_filters( 'grunion_contact_form_form_action', "{$url}#contact-form-{$id}", $GLOBALS['post'], $id );
$r .= "<form action='" . esc_url( $url ) . "' method='post' class='contact-form commentsblock clearfix'>\n";
$r .= $form->body;
$r .= "\t<p class='contact-submit'>\n";
$r .= "\t\t<button class='button left' type='submit' name='submit'><span>" . __( "Submit →", 'radium' ) . "</span></button>\n";
$r .= "\t\t" . wp_nonce_field( 'contact-form_' . $id, '_wpnonce', true, false ) . "\n"; // nonce and referer
$r .= "\t\t<input type='hidden' name='contact-form-id' value='$id' />\n";
$r .= "\t\t<input type='hidden' name='action' value='grunion-contact-form' />\n";
$r .= "\t</p>\n";
$r .= "</form>\n";
}
$r .= "</div>";
return $r;
}
/**
* The contact-field shortcode processor
* We use an object method here instead of a static Radium_Contact_Form_Field class method to parse contact-field shortcodes so that we can tie them to the contact-form object.
*
* @param array $attributes Key => Value pairs as parsed by shortcode_parse_atts()
* @param string|null $content The shortcode's inner content: [contact-field]$content[/contact-field]
* @return HTML for the contact form field
*/
function parse_contact_field( $attributes, $content ) {
$field = new Radium_Contact_Form_Field( $attributes, $content, $this );
$field_id = $field->get_attribute( 'id' );
if ( $field_id ) {
$this->fields[$field_id] = $field;
} else {
$this->fields[] = $field;
}
if (
isset( $_POST['action'] ) && 'grunion-contact-form' === $_POST['action']
&&
isset( $_POST['contact-form-id'] ) && $this->get_attribute( 'id' ) == $_POST['contact-form-id']
) {
// If we're processing a POST submission for this contact form, validate the field value so we can show errors as necessary.
$field->validate();
}
// Output HTML
return $field->render();
}
/**
* Loops through $this->fields to generate a (structured) list of field IDs
* @return array
*/
function get_field_ids() {
$field_ids = array(
'all' => array(), // array of all field_ids
'extra' => array(), // array of all non-whitelisted field IDs
// Whitelisted "standard" field IDs:
// 'email' => field_id,
// 'name' => field_id,
// 'url' => field_id,
// 'subject' => field_id,
// 'textarea' => field_id,
);
foreach ( $this->fields as $id => $field ) {
$field_ids['all'][] = $id;
$type = $field->get_attribute( 'type' );
if ( isset( $field_ids[$type] ) ) {
// This type of field is already present in our whitelist of "standard" fields for this form
// Put it in extra
$field_ids['extra'][] = $id;
continue;
}
switch ( $type ) {
case 'email' :
case 'name' :
case 'url' :
case 'subject' :
case 'textarea' :
$field_ids[$type] = $id;
break;
default :
// Put everything else in extra
$field_ids['extra'][] = $id;
}
}
return $field_ids;
}
/**
* Process the contact form's POST submission
* Stores feedback. Sends email.
*/
function process_submission() {
global $post;
$plugin = Radium_Contact_Form_Plugin::init();
$id = $this->get_attribute( 'id' );
$to = $this->get_attribute( 'to' );
$widget = $this->get_attribute( 'widget' );
$contact_form_subject = $this->get_attribute( 'subject' );
$to = str_replace( ' ', '', $to );
$emails = explode( ',', $to );
$valid_emails = array();
foreach ( (array) $emails as $email ) {
if ( !is_email( $email ) ) {
continue;
}
if ( function_exists( 'is_email_address_unsafe' ) && is_email_address_unsafe( $email ) ) {
continue;
}
$valid_emails[] = $email;
}
// No one to send it to :(
if ( !$valid_emails ) {
return;
}
$to = $valid_emails;
// Make sure we're processing the form we think we're processing... probably a redundant check.
if ( $widget ) {
if ( 'widget-' . $widget != $_POST['contact-form-id'] ) {
return;
}
} else {
if ( $post->ID != $_POST['contact-form-id'] ) {
return;
}
}
$field_ids = $this->get_field_ids();
// Initialize all these "standard" fields to null
$comment_author_email = $comment_author_email_label = // v
$comment_author = $comment_author_label = // v
$comment_author_url = $comment_author_url_label = // v
$comment_content = $comment_content_label = null;
// For each of the "standard" fields, grab their field label and value.
if ( isset( $field_ids['name'] ) ) {
$field = $this->fields[$field_ids['name']];
$comment_author = Radium_Contact_Form_Plugin::strip_tags( stripslashes( apply_filters( 'pre_comment_author_name', addslashes( $field->value ) ) ) );
$comment_author_label = Radium_Contact_Form_Plugin::strip_tags( $field->get_attribute( 'label' ) );
}
if ( isset( $field_ids['email'] ) ) {
$field = $this->fields[$field_ids['email']];
$comment_author_email = Radium_Contact_Form_Plugin::strip_tags( stripslashes( apply_filters( 'pre_comment_author_email', addslashes( $field->value ) ) ) );
$comment_author_email_label = Radium_Contact_Form_Plugin::strip_tags( $field->get_attribute( 'label' ) );
}
if ( isset( $field_ids['url'] ) ) {
$field = $this->fields[$field_ids['url']];
$comment_author_url = Radium_Contact_Form_Plugin::strip_tags( stripslashes( apply_filters( 'pre_comment_author_url', addslashes( $field->value ) ) ) );
if ( 'http://' == $comment_author_url ) {
$comment_author_url = '';
}
$comment_author_url_label = Radium_Contact_Form_Plugin::strip_tags( $field->get_attribute( 'label' ) );
}
if ( isset( $field_ids['textarea'] ) ) {
$field = $this->fields[$field_ids['textarea']];
$comment_content = trim( Radium_Contact_Form_Plugin::strip_tags( $field->value ) );
$comment_content_label = Radium_Contact_Form_Plugin::strip_tags( $field->get_attribute( 'label' ) );
}
if ( isset( $field_ids['subject'] ) ) {
$field = $this->fields[$field_ids['subject']];
if ( $field->value ) {
$contact_form_subject = Radium_Contact_Form_Plugin::strip_tags( $field->value );
}
}
$all_values = $extra_values = array();
// For all fields, grab label and value
foreach ( $field_ids['all'] as $field_id ) {
$field = $this->fields[$field_id];
$label = $field->get_attribute( 'label' );
$value = $field->value;
$all_values[$label] = $value;
}
// For the "non-standard" fields, grab label and value
foreach ( $field_ids['extra'] as $field_id ) {
$field = $this->fields[$field_id];
$label = $field->get_attribute( 'label' );
$value = $field->value;
$extra_values[$label] = $value;
}
$contact_form_subject = trim( $contact_form_subject );
$comment_author_IP = Radium_Contact_Form_Plugin::strip_tags( $_SERVER['REMOTE_ADDR'] );
$vars = array( 'comment_author', 'comment_author_email', 'comment_author_url', 'contact_form_subject', 'comment_author_IP' );
foreach ( $vars as $var )
$$var = str_replace( array( "\n", "\r" ), '', $$var );
$vars[] = 'comment_content';
$spam = '';
$akismet_values = $plugin->prepare_for_akismet( compact( $vars ) );
// Is it spam?
$is_spam = apply_filters( 'contact_form_is_spam', $akismet_values );
if ( is_wp_error( $is_spam ) ) // WP_Error to abort
return; // abort
else if ( $is_spam === TRUE ) // TRUE to flag a spam
$spam = '***SPAM*** ';
if ( !$comment_author )
$comment_author = $comment_author_email;
$to = (array) apply_filters( 'contact_form_to', $to );
foreach ( $to as $to_key => $to_value ) {
$to[$to_key] = Radium_Contact_Form_Plugin::strip_tags( $to_value );
}
$blog_url = parse_url( site_url() );
$from_email_addr = 'wordpress@' . $blog_url['host'];
$reply_to_addr = $to[0];
if ( ! empty( $comment_author_email ) ) {
$reply_to_addr = $comment_author_email;
}
$headers = 'From: ' . $comment_author .' <' . $from_email_addr . ">\r\n" .
'Reply-To: ' . $comment_author . ' <' . $reply_to_addr . ">\r\n" .
"Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"";
$subject = apply_filters( 'contact_form_subject', $contact_form_subject );
$time = date_i18n( __( 'l F j, Y \a\t g:i a', 'radium' ), current_time( 'timestamp' ) );
$extra_content = '';
foreach ( $extra_values as $label => $value ) {
$extra_content .= $label . ': ' . trim( $value ) . "\n";
}
$message = "$comment_author_label: $comment_author\n";
if ( !empty( $comment_author_email ) ) {
$message .= "$comment_author_email_label: $comment_author_email\n";
}
if ( !empty( $comment_author_url ) ) {
$message .= "$comment_author_url_label: $comment_author_url\n";
}
if ( !empty( $comment_content_label ) ) {
$message .= "$comment_content_label: $comment_content\n";
}
$message .= $extra_content . "\n";
$message .= __( 'Time:', 'radium' ) . ' ' . $time . "\n";
$message .= __( 'IP Address:', 'radium' ) . ' ' . $comment_author_IP . "\n";
if ( $widget ) {
$url = home_url( '/' );
} else {
$url = get_permalink( $post->ID );