PHP 微小的联系表格PHP
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<?php
/*
Plugin Name: Tiny Contact Form
Plugin URI: http://www.tomsdimension.de/wp-plugins/tiny-contact-form
Description: Little form that allows site visitors to contact you. Use [TINY-CONTACT-FORM] within any post or page.
Author: Tom Braider
Author URI: http://www.tomsdimension.de
Version: 0.7
*/
$tcf_version = '0.7';
$tcf_script_printed = 0;
$tiny_contact_form = new TinyContactForm();
class TinyContactForm
{
var $o; // options
var $captcha;
var $userdata;
var $nr = 0; // form number to use more then once forms/widgets
/**
* Constructor
*/
function TinyContactForm()
{
// get options from DB
$this->o = get_option('tiny_contact_form');
// widget
add_action('widgets_init', array( &$this, 'register_widgets'));
// options page in menu
add_action('admin_menu', array( &$this, 'addOptionsPage'));
// shortcode
add_shortcode('TINY-CONTACT-FORM', array( &$this, 'shortcode'));
// add stylesheet
add_action('wp_head', array( &$this, 'addStyle'));
// uninstall function
if ( function_exists('register_uninstall_hook') )
register_uninstall_hook(ABSPATH.PLUGINDIR.'/tiny-contact-form/tiny-contact-form.php', array( &$this, 'uninstall'));
// settingslink on plugin page
add_filter('plugin_action_links', array( &$this, 'pluginActions'), 10, 2);
// add locale support
if (defined('WPLANG') && function_exists('load_plugin_textdomain'))
load_plugin_textdomain('tcf-lang', false, 'tiny-contact-form/locale');
// creates image recources
$this->setRecources();
}
/**
* creates tcf code
*
* @return string form code
*/
function showForm( $params = '' )
{
$n = ($this->nr == 0) ? '' : $this->nr;
$this->nr++;
if ( isset($_POST['tcf_sender'.$n]) )
$result = $this->sendMail( $n, $params );
$captcha = new TinyContactFormCaptcha( rand(1000000000, 9999999999) );
$form = '<div class="contactform" id="tcform'.$n.'">';
if ( !empty($result) )
{
if ( $result == $this->o['msg_ok'] )
// mail successfully sent, no form
$form .= '<p class="contactform_respons">'.$result.'</p>';
else
// error message
$form .= '<p class="contactform_error">'.$result.'</p>';
}
if ( empty($result) || (!empty($result) && !$this->o['hideform']) )
{
// subject from form
if ( !empty($_POST['tcf_subject'.$n]) )
$tcf_subject = $_POST['tcf_subject'.$n];
// subject from widget instance
else if ( is_array($params) && !empty($params['subject']))
$tcf_subject = $params['subject'];
// subject from URL
else if ( empty($_POST['tcf_subject'.$n]) && !empty($_GET['subject']) )
$tcf_subject = $_GET['subject'];
// subject from shortcode
else if ( empty($_POST['tcf_subject'.$n]) && !empty($this->userdata['subject']) )
$tcf_subject = $this->userdata['subject'];
else
$tcf_subject = '';
$tcf_sender = (isset($_POST['tcf_sender'.$n])) ? $_POST['tcf_sender'.$n] : '';
$tcf_email = (isset($_POST['tcf_email'.$n])) ? $_POST['tcf_email'.$n] : '';
$tcf_msg = (isset($_POST['tcf_msg'.$n])) ? $_POST['tcf_msg'.$n] : '';
$form .= '
<form action="#tcform'.$n.'" method="post" id="tinyform'.$n.'">
<div>
<input name="tcf_name'.$n.'" id="tcf_name'.$n.'" value="" class="tcf_input" />
<input name="tcf_sendit'.$n.'" id="tcf_sendit'.$n.'" value="1" class="tcf_input" />
<label for="tcf_sender'.$n.'" class="tcf_label">'.__('Name', 'tcf-lang').':</label>
<input name="tcf_sender'.$n.'" id="tcf_sender'.$n.'" size="30" value="'.$tcf_sender.'" class="tcf_field" />
<label for="tcf_email'.$n.'" class="tcf_label">'.__('Email', 'tcf-lang').':</label>
<input name="tcf_email'.$n.'" id="tcf_email'.$n.'" size="30" value="'.$tcf_email.'" class="tcf_field" />';
// additional fields
for ( $x = 1; $x <=5; $x++ )
{
$i = 'tcf_field_'.$x.$n;
$tcf_f = (isset($_POST[$i])) ? $_POST[$i] : '';
$f = $this->o['field_'.$x];
if ( !empty($f) )
$form .= '
<label for="'.$i.'" class="tcf_label">'.$f.':</label>
<input name="'.$i.'" id="'.$i.'" size="30" value="'.$tcf_f.'" class="tcf_field" />';
}
$form .= '
<label for="tcf_subject'.$n.'" class="tcf_label">'.__('Subject', 'tcf-lang').':</label>
<input name="tcf_subject'.$n.'" id="tcf_subject'.$n.'" size="30" value="'.$tcf_subject.'" class="tcf_field" />
<label for="tcf_msg'.$n.'" class="tcf_label">'.__('Your Message', 'tcf-lang').':</label>
<textarea name="tcf_msg'.$n.'" id="tcf_msg'.$n.'" class="tcf_textarea" cols="50" rows="10">'.$tcf_msg.'</textarea>
';
if ( $this->o['captcha'] )
$form .= $captcha->getCaptcha($n);
if ( $this->o['captcha2'] )
$form .= '
<label for="tcf_captcha2_'.$n.'" class="tcf_label">'.$this->o['captcha2_question'].'</label>
<input name="tcf_captcha2_'.$n.'" id="tcf_captcha2_'.$n.'" size="30" class="tcf_field" />
';
$title = (!empty($this->o['submit'])) ? 'value="'.$this->o['submit'].'"' : '';
$form .= '
<input type="submit" name="submit'.$n.'" id="contactsubmit'.$n.'" class="tcf_submit" '.$title.' onclick="return checkForm(\''.$n.'\');" />
</div>
</form>';
}
$form .= '</div>';
$form .= $this->addScript();
return $form;
}
/**
* adds javescript code to check the values
*/
function addScript()
{
global $tcf_script_printed;
if ($tcf_script_printed) // only once
return;
$script = "
<script type=\"text/javascript\">
//<![CDATA[
function checkForm( n )
{
var f = new Array();
f[1] = document.getElementById('tcf_sender' + n).value;
f[2] = document.getElementById('tcf_email' + n).value;
f[3] = document.getElementById('tcf_subject' + n).value;
f[4] = document.getElementById('tcf_msg' + n).value;
f[5] = f[6] = f[7] = f[8] = f[9] = '-';
";
for ( $x = 1; $x <=5; $x++ )
if ( !empty($this->o['field_'.$x]) )
$script .= 'f['.($x + 4).'] = document.getElementById("tcf_field_'.$x.'" + n).value;'."\n";
$script .= '
var msg = "";
for ( i=0; i < f.length; i++ )
{
if ( f[i] == "" )
msg = "'.__('Please fill out all fields.', 'tcf-lang').'\nPlease fill out all fields.\n\n";
}
if ( !isEmail(f[2]) )
msg += "'.__('Wrong Email.', 'tcf-lang').'\nWrong Email.";
if ( msg != "" )
{
alert(msg);
return false;
}
}
function isEmail(email)
{
var rx = /^([^\s@,:"<>]+)@([^\s@,:"<>]+\.[^\s@,:"<>.\d]{2,}|(\d{1,3}\.){3}\d{1,3})$/;
var part = email.match(rx);
if ( part )
return true;
else
return false
}
//]]>
</script>
';
$tcf_script_printed = 1;
return $script;
}
/**
* send mail
*
* @return string Result, Message
*/
function sendMail( $n = '', $params = '' )
{
$result = $this->checkInput( $n );
if ( $result == 'OK' )
{
$result = '';
// use "to" from widget instance
if ( is_array($params) && !empty($params['to']))
$to = $params['to'];
// or from shortcode
else if ( !empty($this->userdata['to']) )
$to = $this->userdata['to'];
// or default
else
$to = $this->o['to_email'];
$from = $this->o['from_email'];
$name = $_POST['tcf_sender'.$n];
$email = $_POST['tcf_email'.$n];
$subject= $this->o['subpre'].' '.$_POST['tcf_subject'.$n];
$msg = $_POST['tcf_msg'.$n];
// additional fields
$extra = '';
foreach ($_POST as $k => $f )
if ( strpos( $k, 'tcf_field_') !== false )
$extra .= $this->o[substr($k, 4, 7)].": $f
";
// create mail
$headers =
"MIME-Version: 1.0
".
"Reply-To: \"$name\" <$email>
".
"Content-Type: text/plain; charset=\"".get_settings('blog_charset')."\"
";
if ( !empty($from) )
$headers .= "From: ".get_bloginfo('name')." - $name <$from>
";
else if ( !empty($email) )
$headers .= "From: ".get_bloginfo('name')." - $name <$email>
";
$fullmsg =
"Name: $name
".
"Email: $email
".
$extra."
".
'Subject: '.$_POST['tcf_subject'.$n]."
".
wordwrap($msg, 76, "
")."
".
'Referer: '.$_SERVER['HTTP_REFERER']."
".
'Browser: '.$_SERVER['HTTP_USER_AGENT']."
";
// send mail
if ( wp_mail( $to, $subject, $fullmsg, $headers) )
{
// ok
if ( $this->o['hideform'] )
{
unset($_POST['tcf_sender'.$n]);
unset($_POST['tcf_email'.$n]);
unset($_POST['tcf_subject'.$n]);
unset($_POST['tcf_msg'.$n]);
foreach ($_POST as $k => $f )
if ( strpos( $k, 'tcf_field_') !== false )
unset($k);
}
$result = $this->o['msg_ok'];
}
else
// error
$result = $this->o['msg_err'];
}
return $result;
}
/**
* shows options page
*/
function optionsPage()
{
global $tcf_version;
if (!current_user_can('manage_options'))
wp_die(__('Sorry, but you have no permissions to change settings.'));
// save data
if ( isset($_POST['tcf_save']) )
{
$to = stripslashes($_POST['tcf_to_email']);
if ( empty($to) )
$to = get_option('admin_email');
$msg_ok = stripslashes($_POST['tcf_msg_ok']);
if ( empty($msg_ok) )
$msg_ok = "Thank you! Your message was sent successfully.";
$msg_err = stripslashes($_POST['tcf_msg_err']);
if ( empty($msg_err) )
$msg_err = "Sorry. An error occured while sending the message!";
$captcha = ( isset($_POST['tcf_captcha']) ) ? 1 : 0;
$captcha2 = ( isset($_POST['tcf_captcha2']) ) ? 1 : 0;
$hideform = ( isset($_POST['tcf_hideform']) ) ? 1 : 0;
$this->o = array(
'to_email' => $to,
'from_email' => stripslashes($_POST['tcf_from_email']),
'css' => stripslashes($_POST['tcf_css']),
'msg_ok' => $msg_ok,
'msg_err' => $msg_err,
'submit' => stripslashes($_POST['tcf_submit']),
'captcha' => $captcha,
'captcha_label' => stripslashes($_POST['tcf_captcha_label']),
'captcha2' => $captcha2,
'captcha2_question' => stripslashes($_POST['tcf_captcha2_question']),
'captcha2_answer' => stripslashes($_POST['tcf_captcha2_answer']),
'subpre' => stripslashes($_POST['tcf_subpre']),
'field_1' => stripslashes($_POST['tcf_field_1']),
'field_2' => stripslashes($_POST['tcf_field_2']),
'field_3' => stripslashes($_POST['tcf_field_3']),
'field_4' => stripslashes($_POST['tcf_field_4']),
'field_5' => stripslashes($_POST['tcf_field_5']),
'hideform' => $hideform
);
update_option('tiny_contact_form', $this->o);
}
// show page
?>
<div id="poststuff" class="wrap">
<h2><img src="<?php echo $this->getResource('tcf_logo.png') ?>" alt="" style="width:24px;height:24px" /> Tiny Contact Form</h2>
<div class="postbox">
<h3><?php _e('Options', 'cpd') ?></h3>
<div class="inside">
<form action="options-general.php?page=tiny-contact-form" method="post">
<table class="form-table">
<tr>
<td colspan="2" style="border-top: 1px #ddd solid; background: #eee"><strong><?php _e('Form', 'tcf-lang'); ?></strong></td>
</tr>
<tr>
<th><?php _e('TO:', 'tcf-lang')?></th>
<td><input name="tcf_to_email" type="text" size="70" value="<?php echo $this->o['to_email'] ?>" /><br /><?php _e('E-mail'); ?>, <?php _e('one or more (e.g. email1,email2,email3)', 'tcf-lang'); ?></td>
</tr>
<tr>
<th><?php _e('FROM:', 'tcf-lang')?> <?php _e('(optional)', 'tcf-lang'); ?></th>
<td><input name="tcf_from_email" type="text" size="70" value="<?php echo $this->o['from_email'] ?>" /><br /><?php _e('E-mail'); ?></td>
</tr>
<tr>
<th><?php _e('Message OK:', 'tcf-lang')?></th>
<td><input name="tcf_msg_ok" type="text" size="70" value="<?php echo $this->o['msg_ok'] ?>" /></td>
</tr>
<tr>
<th><?php _e('Message Error:', 'tcf-lang')?></th>
<td><input name="tcf_msg_err" type="text" size="70" value="<?php echo $this->o['msg_err'] ?>" /></td>
</tr>
<tr>
<th><?php _e('Submit Button:', 'tcf-lang')?> <?php _e('(optional)', 'tcf-lang'); ?></th>
<td><input name="tcf_submit" type="text" size="70" value="<?php echo $this->o['submit'] ?>" /></td>
</tr>
<tr>
<th><?php _e('Subject Prefix:', 'tcf-lang')?> <?php _e('(optional)', 'tcf-lang'); ?></th>
<td><input name="tcf_subpre" type="text" size="70" value="<?php echo $this->o['subpre'] ?>" /></td>
</tr>
<tr>
<th><?php _e('Additional Fields:', 'tcf-lang')?></th>
<td>
<p><?php _e('The contact form includes the fields Name, Email, Subject and Message. If you need more (e.g. Phone, Website) type in the name of the field.', 'tcf-lang'); ?></p>
<?php
for ( $x = 1; $x <= 5; $x++ )
echo '<p>'.__('Field', 'tcf-lang').' '.$x.': <input name="tcf_field_'.$x.'" type="text" size="30" value="'.$this->o['field_'.$x].'" /></p>';
?>
</td>
</tr>
<tr>
<th><?php _e('After Submit', 'tcf-lang')?>:</th>
<td><label for="tcf_hideform"><input name="tcf_hideform" id="tcf_hideform" type="checkbox" <?php if($this->o['hideform']==1) echo 'checked="checked"' ?> /> <?php _e('hide the form', 'tcf-lang'); ?></label></td>
</tr>
<tr>
<td colspan="2" style="border-top: 1px #ddd solid; background: #eee"><strong><?php _e('Captcha', 'tcf-lang'); ?></strong></td>
</tr>
<tr>
<th><?php _e('Captcha', 'tcf-lang')?>:</th>
<td><label for="tcf_captcha"><input name="tcf_captcha" id="tcf_captcha" type="checkbox" <?php if($this->o['captcha']==1) echo 'checked="checked"' ?> /> <?php _e('use a little mathematic spam test like " 12 + 5 = "', 'tcf-lang'); ?></label></td>
</tr>
<tr>
<th><?php _e('Captcha Label:', 'tcf-lang')?></th>
<td><input name="tcf_captcha_label" type="text" size="70" value="<?php echo $this->o['captcha_label'] ?>" /></td>
</tr>
<tr style="border-top: 1px #ddd dashed;" >
<th><?php _e('Alternative Captcha:', 'tcf-lang')?></th>
<td><label for="tcf_captcha2"><input name="tcf_captcha2" id="tcf_captcha2" type="checkbox" <?php if($this->o['captcha2']==1) echo 'checked="checked"' ?> /> <?php _e('Set you own question and answer.', 'tcf-lang'); ?></label></td>
</tr>
<tr>
<th><?php _e('Question:', 'tcf-lang')?></th>
<td><input name="tcf_captcha2_question" type="text" size="70" value="<?php echo $this->o['captcha2_question'] ?>" /></td>
</tr>
<tr>
<th><?php _e('Answer:', 'tcf-lang')?></th>
<td><input name="tcf_captcha2_answer" type="text" size="70" value="<?php echo $this->o['captcha2_answer'] ?>" /></td>
</tr>
<tr>
<td colspan="2" style="border-top: 1px #ddd solid; background: #eee"><strong><?php _e('Style', 'tcf-lang'); ?></strong></td>
</tr>
<tr>
<th>
<?php _e('StyleSheet:', 'tcf-lang'); ?><br />
<a href="javascript:resetCss();"><?php _e('reset', 'tcf-lang'); ?></a>
</th>
<td>
<textarea name="tcf_css" id="tcf_css" style="width:100%" rows="10"><?php echo $this->o['css'] ?></textarea><br />
<?php _e('Use this field or the <code>style.css</code> in your theme directory.', 'tcf-lang') ?>
</td>
</tr>
</table>
<p class="submit">
<input name="tcf_save" class="button-primary" value="<?php _e('Save Changes'); ?>" type="submit" />
</p>
</form>
<script type="text/javascript">
function resetCss()
{
css = ".contactform {}\n.contactform label {}\n.contactform input {}\n.contactform textarea {}\n"
+ ".contactform_respons {}\n.contactform_error {}\n.widget .contactform { /* same fields but in sidebar */ }";
document.getElementById('tcf_css').value = css;
}
</script>
</div>
</div>
<div class="postbox">
<h3><?php _e('Contact', 'tcf-lang') ?></h3>
<div class="inside">
<p>
Tiny Contact Form: <code><?php echo $tcf_version ?></code><br />
<?php _e('Bug? Problem? Question? Hint? Praise?', 'tcf-lang') ?><br />
<?php printf(__('Write a comment on the <a href="%s">plugin page</a>.', 'tcf-lang'), 'http://www.tomsdimension.de/wp-plugins/tiny-contact-form'); ?><br />
<?php _e('License') ?>: <a href="http://www.tomsdimension.de/postcards">Postcardware :)</a>
</p>
<p><a href="<?php echo get_bloginfo('wpurl').'/'.PLUGINDIR ?>/tiny-contact-form/readme.txt?KeepThis=true&amp;TB_iframe=true" title="Tiny Contact Form - Readme.txt" class="thickbox"><strong>Readme.txt</strong></a></p>
</div>
</div>
</div>
<?php
}
/**
* adds admin menu
*/
function addOptionsPage()
{
global $wp_version;
$menutitle = '';
if ( version_compare( $wp_version, '2.6.999', '>' ) )
$menutitle = '<img src="'.$this->getResource('tcf_menu.png').'" alt="" /> ';
$menutitle .= 'Tiny Contact Form';
add_options_page('Tiny Contact Form', $menutitle, 9, 'tiny-contact-form', array( &$this, 'optionsPage'));
}
/**
* parses parameters
*
* @param string $atts parameters
*/
function shortcode( $atts )
{
// e.g. [TINY-CONTENT-FORM to="abc@xyz.com" subject="xyz"]
extract( shortcode_atts( array(
'to' => '',
'subject' => ''
), $atts) );
$this->userdata = array(
'to' => $to,
'subject' => $subject
);
return $this->showForm();
}
/**
* check input fields
*
* @return string message
*/
function checkInput( $n = '' )
{
// exit if no form data
if ( !isset($_POST['tcf_sendit'.$n]))
return false;
// hidden field check
if ( (isset($_POST['tcf_sendit'.$n]) && $_POST['tcf_sendit'.$n] != 1)
|| (isset($_POST['tcf_name'.$n]) && $_POST['tcf_name'.$n] != '') )
{
return 'No Spam please!';
}
// for captcha check
$o = get_option('tiny_contact_form');
$_POST['tcf_sender'.$n] = stripslashes(trim($_POST['tcf_sender'.$n]));
$_POST['tcf_email'.$n] = stripslashes(trim($_POST['tcf_email'.$n]));
$_POST['tcf_subject'.$n] = stripslashes(trim($_POST['tcf_subject'.$n]));
$_POST['tcf_msg'.$n] = stripslashes(trim($_POST['tcf_msg'.$n]));
// extra felder
$error = array();
if ( empty($_POST['tcf_sender'.$n]) )
$error[] = __('Name', 'tcf-lang');
if ( !is_email($_POST['tcf_email'.$n]) )
$error[] = __('Email', 'tcf-lang');
if ( empty($_POST['tcf_subject'.$n]) )
$error[] = __('Subject', 'tcf-lang');
if ( empty($_POST['tcf_msg'.$n]) )
$error[] = __('Your Message', 'tcf-lang');
if ( $o['captcha'] && !TinyContactFormCaptcha::isCaptchaOk() )
$error[] = $this->o['captcha_label'];
if ( $o['captcha2'] && ( empty($_POST['tcf_captcha2_'.$n]) || $_POST['tcf_captcha2_'.$n] != $o['captcha2_answer'] ) )
$error[] = $this->o['captcha2_question'];
if ( !empty($error) )
return __('Check these fields:', 'tcf-lang').' '.implode(', ', $error);
return 'OK';
}
/**
* clean up when uninstall
*/
function uninstall()
{
delete_option('tiny_contact_form');
}
/**
* adds custom style to page
*/
function addStyle()
{
echo "\n<!-- Tiny Contact Form -->\n"
."<style type=\"text/css\">\n"
.".tcf_input {display:none !important; visibility:hidden !important;}\n"
.$this->o['css']."\n"
."</style>\n";
}
/**
* adds an action link to the plugins page
*/
function pluginActions($links, $file)
{
if( $file == plugin_basename(__FILE__)
&& strpos( $_SERVER['SCRIPT_NAME'], '/network/') === false ) // not on network plugin page
{
$link = '<a href="options-general.php?page=tiny-contact-form">'.__('Settings').'</a>';
array_unshift( $links, $link );
}
return $links;
}
/**
* defines base64 encoded image recources
*/
function setRecources()
{
if ( isset($_GET['resource']) && !empty($_GET['resource']) )
{
# base64 encoding
$resources = array(
'tcf_menu.png' =>
'iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAYAAABWdVznAAAAAX'.
'NSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAgY0hSTQAAeiYA'.
'AICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAABh0RV'.
'h0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjM2qefiJQAAAEtJREFU'.
'KFNj9GD4/58BCnYwMDI2NDTA+TBxymiQDTAMMglkAz5Mum20t4'.
'GQm9HlwZ4k1iNgtWRpIMVZINewEusksDrkYEWOQFyGAABXBYxc'.
'mDNSvQAAAABJRU5ErkJggg==',
'tcf_logo.png' =>
'iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAAAX'.
'NSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAgY0hSTQAAeiYA'.
'AICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAABh0RV'.
'h0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjM2qefiJQAAAHpJREFU'.
'SEtj9GD4/58BC9jBwMgIEm5oaMAqj00PVjGQBdgwTDHIAkow0Q'.
'4ZvAppHkQ0t2Dwhi2xLqN5ENHcAmJ9OnjVUVIMEKMXXJjREsMt'.
'oHYYwxw9agHOkMUIIlpFNO1TEdCPrFBM7YQEN4+2FuAq7NDFyf'.
'YerS0AAHa/Vp9sTByIAAAAAElFTkSuQmCC');
if ( array_key_exists($_GET['resource'], $resources) )
{
$content = base64_decode($resources[ $_GET['resource'] ]);
$lastMod = filemtime(__FILE__);
$client = ( isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : false );
if (isset($client) && (strtotime($client) == $lastMod))
{
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $lastMod).' GMT', true, 304);
exit;
}
else
{
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $lastMod).' GMT', true, 200);
header('Content-Length: '.strlen($content));
header('Content-Type: image/' . substr(strrchr($_GET['resource'], '.'), 1) );
echo $content;
exit;
}
}
}
}
/**
* gets image recource with given name
*/
function getResource( $resourceID ) {
return trailingslashit( get_bloginfo('url') ).'?resource='.$resourceID;
}
/**
* calls widget class
*/
function register_widgets()
{
register_widget('TinyContactForm_Widget');
}
} // TCF class
/**
* Captcha class
*/
class TinyContactFormCaptcha
{
var $first;
var $operation;
var $second;
var $answer;
var $captcha_id;
/**
* creates captcha
* @param String $seed ID
*/
function TinyContactFormCaptcha( $seed )
{
$this->captcha_id = $seed;
if ( $seed )
srand($seed);
$operation = rand(1, 4);
switch ( $operation )
{
case 1:
$this->operation = '+';
$this->first = rand(1, 20);
$this->second = rand(0, 20);
$this->answer = $this->first + $this->second;
break;
case 2:
$this->operation = '-';
$this->first = rand(1, 20);
$this->second = rand(0, ($this->first - 1));
$this->answer = $this->first - $this->second;
break;
case 3:
$this->operation = 'x';
$this->first = rand(1, 10);
$this->second = rand(1, 10);
$this->answer = $this->first * $this->second;
break;
case 4:
$this->operation = '/';
$this->first = rand(1, 20);
do
{
$this->second = rand(1, 20);
}
while (($this->first % $this->second) != 0);
$this->answer = $this->first / $this->second;
break;
}
}
/**
* returns answer
*/
function getAnswer()
{
return $this->answer;
}
/**
* returns question
*/
function getQuestion()
{
return $this->first.' '.$this->operation.' '.$this->second.' = ';
}
/**
* checks answer
*/
function isCaptchaOk()
{
$ok = true;
// time and ID in form?
if ($_POST[base64_encode(strrev('current_time'))] && $_POST[base64_encode(strrev('captcha'))])
{
// maximum 30 minutes to fill the form
if ((time() - strrev(base64_decode($_POST[base64_encode(strrev('current_time'))]))) > 1800)
$ok = false;
// check answer
$valid = new TinyContactFormCaptcha(strrev(base64_decode($_POST[base64_encode(strrev('captcha'))])));
if ($_POST[base64_encode(strrev('answer'))] != $valid->getAnswer())
$ok = false;
}
return $ok;
}
/**
* creates input fields in form
*/
function getCaptcha( $n = '' )
{
global $tiny_contact_form;
return '<input name="'.base64_encode(strrev('current_time')).'" type="hidden" value="'.base64_encode(strrev(time())).'" />'."\n"
.'<input name="'.base64_encode(strrev('captcha')).'" type="hidden" value="'.base64_encode(strrev($this->captcha_id)).'" />'."\n"
.'<label class="tcf_label" style="display:inline" for="tcf_captcha'.$n.'">'.$tiny_contact_form->o['captcha_label'].' <b>'.$this->getQuestion().'</b></label> <input id="tcf_captcha'.$n.'" name="'.base64_encode(strrev('answer')).'" type="text" size="2" />'."\n";
}
} // captcha class
class TinyContactForm_Widget extends WP_Widget
{
var $fields = array('Title', 'Subject', 'To');
/**
* constructor
*/
function TinyContactForm_Widget() {
parent::WP_Widget('tcform_widget', 'Tiny Contact Form', array('description' => 'Little Contact Form'));
}
/**
* display widget
*/
function widget( $args, $instance)
{
global $tiny_contact_form;
extract($args, EXTR_SKIP);
$title = empty($instance['title']) ? '&nbsp;' : apply_filters('widget_title', $instance['title']);
echo $before_widget;
if ( !empty( $title ) )
echo $before_title.$title.$after_title;
echo $tiny_contact_form->showForm( $instance );
echo $after_widget;
}
/**
* update/save function
*/
function update( $new_instance, $old_instance )
{
$instance = $old_instance;
foreach ( $this->fields as $f )
$instance[strtolower($f)] = strip_tags($new_instance[strtolower($f)]);
return $instance;
}
/**
* admin control form
*/
function form( $instance )
{
$default = array('title' => 'Tiny Contact Form');
$instance = wp_parse_args( (array) $instance, $default );
foreach ( $this->fields as $field )
{
$f = strtolower( $field );
$field_id = $this->get_field_id( $f );
$field_name = $this->get_field_name( $f );
echo "
".'<p><label for="'.$field_id.'">'.__($field, 'tcf-lang').': <input type="text" class="widefat" id="'.$field_id.'" name="'.$field_name.'" value="'.attribute_escape( $instance[$f] ).'" /><label></p>';
}
}
} // widget class
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