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| Dir : /home/trave494/islandpc.ca/wp-content/plugins/si-captcha-for-wordpress/si-captcha.php |
<?php
/*
Plugin Name: SI CAPTCHA Anti-Spam
Plugin URI: http://www.642weather.com/weather/scripts-wordpress-captcha.php
Description: Adds CAPTCHA anti-spam methods to WordPress forms for comments, registration, lost password, login, or all. This prevents spam from automated bots. WP, WPMU, and BuddyPress compatible. <a href="plugins.php?page=si-captcha-for-wordpress/si-captcha.php">Settings</a> | <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=KXJWLPPWZG83S">Donate</a>
Version: 2.7.7.3
Author: Mike Challis
Author URI: http://www.642weather.com/weather/scripts.php
*/
$si_captcha_version = '2.7.7.3';
/* Copyright (C) 2008-2013 Mike Challis (http://www.642weather.com/weather/contact_us.php)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// settings get deleted when plugin is deleted from admin plugins page
// this must be outside the class or it does not work
function si_captcha_unset_options() {
if (basename(dirname(__FILE__)) != "mu-plugins")
delete_option('si_captcha');
}
if (!class_exists('siCaptcha')) {
class siCaptcha {
var $si_captcha_add_script;
var $si_captcha_version;
function si_captcha_add_tabs() {
global $wpmu, $wp_version;
// for WP 3.0+ ONLY!
if( $wpmu == 1 && version_compare($wp_version,'3','>=') && is_multisite() && is_super_admin() ) { // wp 3.0 +
add_submenu_page('ms-admin.php', __('SI Captcha Options', 'si-captcha'), __('SI Captcha Options', 'si-captcha'), 'manage_options', __FILE__,array(&$this,'si_captcha_options_page'));
add_options_page( __('SI Captcha Options', 'si-captcha'), __('SI Captcha Options', 'si-captcha'), 'manage_options', __FILE__,array(&$this,'si_captcha_options_page'));
}
else if ($wpmu == 1 && function_exists('is_site_admin') && is_site_admin()) {
add_submenu_page('wpmu-admin.php', __('SI Captcha Options', 'si-captcha'), __('SI Captcha Options', 'si-captcha'), 'manage_options', __FILE__,array(&$this,'si_captcha_options_page'));
add_options_page( __('SI Captcha Options', 'si-captcha'), __('SI Captcha Options', 'si-captcha'), 'manage_options', __FILE__,array(&$this,'si_captcha_options_page'));
}
else if ($wpmu != 1) {
add_submenu_page('plugins.php', __('SI Captcha Options', 'si-captcha'), __('SI Captcha Options', 'si-captcha'), 'manage_options', __FILE__,array(&$this,'si_captcha_options_page'));
}
}
function si_captcha_get_options() {
global $wpmu, $si_captcha_opt, $si_captcha_option_defaults;
$default_position = ( function_exists('bp_loaded') ) ? 'label-required-input' : 'input-label-required';
$si_captcha_option_defaults = array(
'si_captcha_donated' => 'false',
'si_captcha_perm' => 'true',
'si_captcha_perm_level' => 'read',
'si_captcha_comment' => 'true',
'si_captcha_comment_label_position' => $default_position,
'si_captcha_login' => 'false',
'si_captcha_register' => 'true',
'si_captcha_lostpwd' => 'true',
'si_captcha_rearrange' => 'true',
'si_captcha_enable_session' => 'false',
'si_captcha_captcha_small' => 'false',
'si_captcha_honeypot_enable' => 'false',
'si_captcha_aria_required' => 'false',
'si_captcha_external_style' => 'false',
'si_captcha_captcha_div_style' => 'display:block;',
'si_captcha_captcha_div_style_sm' => 'width:175px; height:45px; padding-top:10px;',
'si_captcha_captcha_div_style_m' => 'width:250px; height:60px; padding-top:10px;',
'si_captcha_captcha_image_style' => 'border-style:none; margin:0; padding-right:5px; float:left;',
'si_captcha_refresh_image_style' => 'border-style:none; margin:0; vertical-align:bottom;',
'si_captcha_captcha_input_div_style' => 'display:block; padding-top:15px; padding-bottom:5px;',
'si_captcha_comment_label_style' => 'margin:0;',
'si_captcha_comment_field_style' => 'width:65px;',
'si_captcha_label_captcha' => '',
'si_captcha_error_spambot' => '',
'si_captcha_error_incorrect' => '',
'si_captcha_error_empty' => '',
'si_captcha_error_token' => '',
'si_captcha_error_unreadable' => '',
'si_captcha_error_cookie' => '',
'si_captcha_error_error' => '',
'si_captcha_required_indicator' => ' *',
'si_captcha_tooltip_captcha' => '',
'si_captcha_tooltip_refresh' => '',
);
// upgrade path from old version
if ($wpmu != 1 && !get_option('si_captcha') && get_option('si_captcha_comment')) {
// just now updating, migrate settings
$si_captcha_option_defaults = $this->si_captcha_migrate($si_captcha_option_defaults);
}
// install the option defaults
if ($wpmu == 1) {
if( !get_site_option('si_captcha') ) {
add_site_option('si_captcha', $si_captcha_option_defaults, '', 'yes');
}
}else{
add_option('si_captcha', $si_captcha_option_defaults, '', 'yes');
}
// get the options from the database
if ($wpmu == 1)
$si_captcha_opt = get_site_option('si_captcha'); // get the options from the database
else
$si_captcha_opt = get_option('si_captcha');
// array merge incase this version has added new options
$si_captcha_opt = array_merge($si_captcha_option_defaults, $si_captcha_opt);
// strip slashes on get options array
foreach($si_captcha_opt as $key => $val) {
$si_captcha_opt[$key] = $this->si_stripslashes($val);
}
if ($si_captcha_opt['si_captcha_captcha_image_style'] == '') {
// if default styles are missing, reset styles
$style_resets_arr = array('si_captcha_comment_label_style','si_captcha_comment_field_style','si_captcha_captcha_div_style','si_captcha_captcha_div_style_sm','si_captcha_captcha_div_style_m','si_captcha_captcha_input_div_style','si_captcha_captcha_image_style','si_captcha_refresh_image_style');
foreach($style_resets_arr as $style_reset) {
$si_captcha_opt[$style_reset] = $si_captcha_option_defaults[$style_reset];
}
}
if ( defined('XMLRPC_REQUEST') && XMLRPC_REQUEST )
$si_captcha_opt['si_captcha_login'] = 'false'; // disable captcha on xmlrpc connections
} // end function si_captcha_get_options
function si_captcha_migrate($si_captcha_option_defaults) {
// read the options from the prior version
$new_options = array ();
foreach($si_captcha_option_defaults as $key => $val) {
$new_options[$key] = get_option( "$key" );
// now delete the options from the prior version
delete_option("$key");
}
// now the old settings will carry over to the new version
return $new_options;
} // end function si_captcha_migrate
function si_captcha_options_page() {
global $wpmu, $si_captcha_dir, $si_captcha_url, $si_captcha_url_ns, $si_captcha_dir_ns, $si_captcha_opt, $si_captcha_option_defaults, $si_captcha_version;
$si_captcha_admin_path = str_replace('/captcha','',$si_captcha_dir);
if ($wpmu == 1)
$si_captcha_admin_path = 'si-captcha-for-wordpress';
require_once($si_captcha_admin_path . '/si-captcha-admin.php');
}// end function si_captcha_options_page
function si_captcha_perm_dropdown($select_name, $checked_value='') {
// choices: Display text => permission_level
$choices = array (
__('All registered users', 'si-captcha') => 'read',
__('Edit posts', 'si-captcha') => 'edit_posts',
__('Publish Posts', 'si-captcha') => 'publish_posts',
__('Moderate Comments', 'si-captcha') => 'moderate_comments',
__('Administer site', 'si-captcha') => 'level_10'
);
// print the <select> and loop through <options>
echo '<select name="' . esc_attr($select_name) . '" id="' . esc_attr($select_name) . '">' . "\n";
foreach ($choices as $text => $capability) :
if ($capability == $checked_value) $checked = ' selected="selected" ';
echo "\t". '<option value="' . esc_attr($capability) . '"' . $checked . '>'.esc_html($text)."</option>\n";
$checked = '';
endforeach;
echo "\t</select>\n";
} // end function si_captcha_perm_dropdown
function si_captcha_check_requires() {
global $si_captcha_dir, $si_captcha_add_script;
$ok = 'ok';
// Test for some required things, print error message if not OK.
if ( !extension_loaded('gd') || !function_exists('gd_info') ) {
echo '<p style="color:maroon">'.__('ERROR: si-captcha.php plugin says GD image support not detected in PHP!', 'si-captcha').'</p>';
echo '<p>'.__('Contact your web host and ask them why GD image support is not enabled for PHP.', 'si-captcha').'</p>';
$ok = 'no';
}
if ( !function_exists('imagepng') ) {
echo '<p style="color:maroon">'.__('ERROR: si-captcha.php plugin says imagepng function not detected in PHP!', 'si-captcha').'</p>';
echo '<p>'.__('Contact your web host and ask them why imagepng function is not enabled for PHP.', 'si-captcha').'</p>';
$ok = 'no';
}
if ( !@strtolower(ini_get('safe_mode')) == 'on' && !file_exists("$si_captcha_dir/securimage.php") ) {
echo '<p style="color:maroon">'.__('ERROR: si-captcha.php plugin says captcha_library not found.', 'si-captcha').'</p>';
$ok = 'no';
}
if ($ok == 'no') return false;
$si_captcha_add_script = true;
return true;
} // end function si_captcha_check_requires
// this function adds the captcha to the comment form
function si_captcha_comment_form() {
global $si_captcha_url, $si_captcha_opt;
// skip the captcha if user is logged in and the settings allow
if (is_user_logged_in() && $si_captcha_opt['si_captcha_perm'] == 'true') {
// skip the CAPTCHA display if the minimum capability is met
if ( current_user_can( $si_captcha_opt['si_captcha_perm_level'] ) ) {
// skip capthca
return true;
}
}
// the captcha html
echo '
<div id="captchaImgDiv">
';
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - comment form 2.0
echo '
<div ';
echo ($si_captcha_opt['si_captcha_captcha_small'] == 'true') ? 'class="captchaSizeDivSmall"' : 'class="captchaSizeDivLarge"';
echo '>';
$this->si_captcha_captcha_html('si_image_com','com');
echo '</div>
<div id="captchaInputDiv">';
$label_string = ' <label id="captcha_code_label" for="captcha_code">';
$label_string .= ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
$label_string .= '</label>';
$required_string = '<span class="required">'.$si_captcha_opt['si_captcha_required_indicator']."</span>\n";
$input_string = '<input id="captcha_code" name="captcha_code" type="text" value="" tabindex="4" '.$si_aria_required.' />
';
if ($si_captcha_opt['si_captcha_comment_label_position'] == 'label-required-input' || $si_captcha_opt['si_captcha_comment_label_position'] == 'left' ) { // buddypress (label-required-input)(label left)
echo $label_string . $required_string . $input_string; // BP
} else if ($si_captcha_opt['si_captcha_comment_label_position'] == 'label-required-linebreak-input' || $si_captcha_opt['si_captcha_comment_label_position'] == 'top' ) {
echo $label_string . $required_string .'<br />'. $input_string; // regular WP - twenty ten
} else if ($si_captcha_opt['si_captcha_comment_label_position'] == 'label-input-required' || $si_captcha_opt['si_captcha_comment_label_position'] == 'right' ) {
echo $label_string . $input_string . $required_string; // suffusion
} else if ($si_captcha_opt['si_captcha_comment_label_position'] == 'input-label-required' ) {
echo $input_string . $label_string . $required_string; // regular WP
} else {
echo $input_string . $label_string . $required_string; // regular WP
}
echo ' </div>
</div>
';
// rearrange submit button display order
if ($si_captcha_opt['si_captcha_rearrange'] == 'true') {
print <<<EOT
<script type='text/javascript'>
var sUrlInput = document.getElementById("comment");
var oParent = sUrlInput.parentNode;
var sSubstitue = document.getElementById("captchaImgDiv");
oParent.appendChild(sSubstitue, sUrlInput);
</script>
<noscript>
<style type='text/css'>#submit {display:none;}</style><br />
EOT;
echo ' <input name="submit" type="submit" id="submit-alt" tabindex="6" value="'.__('Submit Comment', 'si-captcha').'" />
</noscript>
';
}
}else{
echo '</div>';
}
return true;
} // end function si_captcha_comment_form 2.0
// this function adds the captcha to the comment form WP3
function si_captcha_comment_form_wp3() {
global $si_captcha_url, $si_captcha_opt;
// skip the captcha if user is logged in and the settings allow
if (is_user_logged_in() && $si_captcha_opt['si_captcha_perm'] == 'true') {
// skip the CAPTCHA display if the minimum capability is met
if ( current_user_can( $si_captcha_opt['si_captcha_perm_level'] ) ) {
// skip capthca
return true;
}
}
// the captch html
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - comment form 3.0+
if (is_user_logged_in()) {
echo '<br />';
}
echo '
<div ';
echo ($si_captcha_opt['si_captcha_captcha_small'] == 'true') ? 'class="captchaSizeDivSmall"' : 'class="captchaSizeDivLarge"';
echo '>';
$this->si_captcha_captcha_html('si_image_com','com');
echo '</div>
<br />
';
echo '<p>';
$label_string = '<label id="captcha_code_label" for="captcha_code" >';
$label_string .= ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
$label_string .= '</label>';
$required_string = '<span class="required">'.$si_captcha_opt['si_captcha_required_indicator']."</span>\n";
$input_string = '<input id="captcha_code" name="captcha_code" type="text" size="6" ' . $si_aria_required . ' />
';
if ($si_captcha_opt['si_captcha_comment_label_position'] == 'label-required-input' || $si_captcha_opt['si_captcha_comment_label_position'] == 'left' ) { // buddypress (label-required-input)(label left)
echo $label_string . $required_string . $input_string; // BP
} else if ($si_captcha_opt['si_captcha_comment_label_position'] == 'label-required-linebreak-input' || $si_captcha_opt['si_captcha_comment_label_position'] == 'top' ) {
echo $label_string . $required_string .'<br />'. $input_string; // regular WP - twenty ten
} else if ($si_captcha_opt['si_captcha_comment_label_position'] == 'label-input-required' || $si_captcha_opt['si_captcha_comment_label_position'] == 'right' ) {
echo $label_string . $input_string . $required_string; // suffusion
} else if ($si_captcha_opt['si_captcha_comment_label_position'] == 'input-label-required' ) {
echo $input_string . $label_string . $required_string; // regular WP
} else {
echo $input_string . $label_string . $required_string; // regular WP
}
echo '</p>';
}
// prevent double captcha fields
remove_action('comment_form', array(&$this, 'si_captcha_comment_form'), 1);
return true;
} // end function si_captcha_comment_form_wp3
// this function adds the captcha to the login form
function si_captcha_login_form() {
global $si_captcha_url, $si_captcha_opt;
if ($si_captcha_opt['si_captcha_login'] != 'true') {
return true; // captcha setting is disabled for login
}
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - login form
echo '
<br />
<div ';
echo ($si_captcha_opt['si_captcha_captcha_small'] == 'true') ? 'class="captchaSizeDivSmall"' : 'class="captchaSizeDivLarge"';
echo '>';
$this->si_captcha_captcha_html('si_image_log','log');
echo '</div>
<p>
<label>';
echo ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
echo '<br />
<input id="captcha_code" name="captcha_code" class="input" type="text" value="" size="12" tabindex="30" '.$si_aria_required.' style="font-size: 24px; width: 97%; padding: 3px; margin-top: 2px; margin-right: 6px; margin-bottom: 16px; border: 1px solid #e5e5e5; background: #fbfbfb;" /></label>
</p>
<br />
';
}
return true;
} // end function si_captcha_login_form
// this function adds the captcha to the login bar form of all buddypress versions
function si_captcha_bp_login_form() {
global $si_captcha_url, $si_captcha_opt;
if ($si_captcha_opt['si_captcha_login'] != 'true') {
return true; // captcha setting is disabled for login
}
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - buddypress login form
echo '
<div style="width:440px; height:45px">';
$this->si_captcha_captcha_html('si_image_log','log');
echo '<input id="captcha_code" name="captcha_code" class="input" type="text" value="" '.$si_aria_required.' />
<label for="captcha_code">';
echo ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
echo '</label>
</div>
</div>
';
}
return true;
} // end function si_captcha_bp_login_form
// this function adds the captcha to the login sidebar form of all buddypress versions
function si_captcha_bp_login_sidebar_form() {
global $si_captcha_url, $si_captcha_opt;
if ($si_captcha_opt['si_captcha_login'] != 'true') {
return true; // captcha setting is disabled for login
}
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - buddypress sidebar login form
echo '
<div class="captchaSizeDivSmall">
';
$this->si_captcha_captcha_html('si_image_side_login','log');
echo '
</div>
<label for="captcha_code_side_login">';
echo ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
echo '</label>
<input style="width=145px;" id="captcha_code_side_login" name="captcha_code" class="input" type="text" value="" '.$si_aria_required.' />
<br />
<br />
';
}
return true;
} // end function si_captcha_bp_login_sidebar_form
// this function adds the captcha to the register form
function si_captcha_register_form() {
global $si_captcha_url, $si_captcha_opt;
if ($si_captcha_opt['si_captcha_register'] != 'true') {
return true; // captcha setting is disabled for registration
}
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - register form
echo '
<br />
<div ';
echo ($si_captcha_opt['si_captcha_captcha_small'] == 'true') ? 'class="captchaSizeDivSmall"' : 'class="captchaSizeDivLarge"';
echo '>';
$this->si_captcha_captcha_html('si_image_reg','reg');
echo '</div>
<p>
<label>';
echo ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
echo '<br />
<input id="captcha_code" name="captcha_code" class="input" type="text" value="" tabindex="30" '.$si_aria_required.' style="font-size: 24px; width: 97%; padding: 3px; margin-top: 2px; margin-right: 6px; margin-bottom: 16px; border: 1px solid #e5e5e5; background: #fbfbfb;" /></label>
</p>
';
}
return true;
} // end function si_captcha_register_form
// for wpmu and buddypress before 1.1
function si_captcha_wpmu_signup_form( $errors ) {
global $si_captcha_url, $si_captcha_opt;
if ($si_captcha_opt['si_captcha_register'] != 'true') {
return true; // captcha setting is disabled for registration
}
$error = $errors->get_error_message('captcha');
if( isset($error) && $error != '') {
echo '<p class="error">' . $error . '</p>';
}
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - wpmu register form
echo '
<div ';
echo ($si_captcha_opt['si_captcha_captcha_small'] == 'true') ? 'class="captchaSizeDivSmall"' : 'class="captchaSizeDivLarge"';
echo '>';
$this->si_captcha_captcha_html('si_image_reg','reg');
echo '</div>
<label for="captcha_code">';
echo ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
echo '</label>
<input id="captcha_code" name="captcha_code" type="text" value="" '.$si_aria_required.' />
';
}
} // end function si_captcha_wpmu_signup_form
// for buddypress 1.1+ only
// hooks into register.php do_action( 'bp_before_registration_submit_buttons' )
// and bp-core-signup.php add_action( 'bp_' . $fieldname . '_errors', ...
function si_captcha_bp_signup_form() {
global $si_captcha_url, $si_captcha_opt;
if ($si_captcha_opt['si_captcha_register'] != 'true') {
return true; // captcha setting is disabled for registration
}
// Test for some required things, print error message right here if not OK.
if ($this->si_captcha_check_requires()) {
$si_aria_required = ($si_captcha_opt['si_captcha_aria_required'] == 'true') ? ' aria-required="true" ' : '';
// the captcha html - buddypress 1.1 register form
echo '
<div class="register-section" style="clear:left; margin-top:-10px;">
<div ';
echo ($si_captcha_opt['si_captcha_captcha_small'] == 'true') ? 'class="captchaSizeDivSmall"' : 'class="captchaSizeDivLarge"';
echo '>';
$this->si_captcha_captcha_html('si_image_reg','reg');
echo '</div>
<label for="captcha_code">';
do_action( 'bp_captcha_code_errors' );
echo ($si_captcha_opt['si_captcha_label_captcha'] != '') ? $si_captcha_opt['si_captcha_label_captcha'] : __('CAPTCHA Code', 'si-captcha');
echo '</label>
<input style="width:145px;" id="captcha_code" name="captcha_code" type="text" value="" '.$si_aria_required.' />
</div>
';
}
} // end function si_captcha_wpmu_signup_form
// this function checks the captcha posted with registration on BuddyPress 1.1+
// hooks into bp-core-signup.php do_action( 'bp_signup_validate' );
function si_captcha_bp_signup_validate() {
global $bp, $si_captcha_dir, $si_captcha_dir_ns, $si_captcha_opt;
$validate_result = $this->si_captcha_validate_code('reg', 'unlink');
if($validate_result != 'valid') {
$bp->signup->errors['captcha_code'] = $validate_result;
return;
}
return;
} // end function si_captcha_bp_signup_validate
// this function checks the captcha posted with registration on wpmu and buddypress before 1.1
function si_captcha_wpmu_signup_post($errors) {
global $si_captcha_dir, $si_captcha_dir_ns, $si_captcha_opt;
if ($_POST['stage'] == 'validate-user-signup') {
$validate_result = $this->si_captcha_validate_code('reg', 'unlink');
if($validate_result != 'valid') {
$error = ($si_captcha_opt['si_captcha_error_error'] != '') ? $si_captcha_opt['si_captcha_error_error'] : __('ERROR', 'si-captcha');
$errors['errors']->add('captcha', "<strong>$error</strong>: $validate_result");
return $errors;
}
}
return($errors);
} // end function si_captcha_wpmu_signup_post
// this function checks the captcha posted with registration
function si_captcha_register_post($errors) {
global $si_captcha_dir, $si_captcha_dir_ns, $si_captcha_opt;
$validate_result = $this->si_captcha_validate_code('reg', 'unlink');
if($validate_result != 'valid') {
$error = ($si_captcha_opt['si_captcha_error_error'] != '') ? $si_captcha_opt['si_captcha_error_error'] : __('ERROR', 'si-captcha');
$errors->add('captcha_error', "<strong>$error</strong>: $validate_result");
return $errors;
}
return($errors);
} // end function si_captcha_register_post
function si_captcha_lostpassword_post() {
global $si_captcha_dir, $si_captcha_dir_ns, $si_captcha_opt;
$validate_result = $this->si_captcha_validate_code('reg', 'unlink');
if($validate_result != 'valid') {
$error = ($si_captcha_opt['si_captcha_error_error'] != '') ? $si_captcha_opt['si_captcha_error_error'] : __('ERROR', 'si-captcha');
wp_die( "<strong>$error</strong>: $validate_result" );
}
return;
} // function si_captcha_lostpassword_post
// this function checks the captcha posted with the comment
function si_captcha_comment_post($comment) {
global $si_captcha_dir, $si_captcha_dir_ns, $si_captcha_opt;
// added for compatibility with WP Wall plugin
// this does NOT add CAPTCHA to WP Wall plugin,
// it just prevents the "Empty CAPTCHA" when submitting a WP Wall comment
if ( function_exists('WPWall_Widget') && isset($_POST['wpwall_comment']) ) {
// skip capthca
return $comment;
}
// skip the captcha if user is logged in and the settings allow
if (is_user_logged_in() && $si_captcha_opt['si_captcha_perm'] == 'true') {
// skip the CAPTCHA display if the minimum capability is met
if ( current_user_can( $si_captcha_opt['si_captcha_perm_level'] ) ) {
// skip capthca
return $comment;
}
}
// skip captcha for comment replies from admin menu
if ( isset($_POST['action']) && $_POST['action'] == 'replyto-comment' &&
( check_ajax_referer( 'replyto-comment', '_ajax_nonce', false ) || check_ajax_referer( 'replyto-comment', '_ajax_nonce-replyto-comment', false )) ) {
// skip capthca
return $comment;
}
// Skip captcha for trackback or pingback
if ( $comment['comment_type'] != '' && $comment['comment_type'] != 'comment' ) {
// skip capthca
return $comment;
}
$validate_result = $this->si_captcha_validate_code('com', 'unlink');
if($validate_result != 'valid') {
$error = ($si_captcha_opt['si_captcha_error_error'] != '') ? $si_captcha_opt['si_captcha_error_error'] : __('ERROR', 'si-captcha');
wp_die( "<strong>$error</strong>: $validate_result" );
}
return($comment);
} // end function si_captcha_comment_post
function si_wp_authenticate_username_password($user, $username, $password) {
global $si_captcha_dir, $si_captcha_dir_ns, $si_captcha_opt, $wp_version;
if ( is_a($user, 'WP_User') ) { return $user; }
if ( empty($username) || empty($password) || isset($_POST['captcha_code']) && empty($_POST['captcha_code'])) {
$error = new WP_Error();
if ( empty($username) )
$error->add('empty_username', __('<strong>ERROR</strong>: The username field is empty.'));
if ( empty($password) )
$error->add('empty_password', __('<strong>ERROR</strong>: The password field is empty.'));
if (isset($_POST['captcha_code']) && empty($_POST['captcha_code'])) {
remove_filter('authenticate', 'wp_authenticate_username_password', 20, 3);
$print_error = ($si_captcha_opt['si_captcha_error_error'] != '') ? $si_captcha_opt['si_captcha_error_error'] : __('ERROR', 'si-captcha');
$empty_captcha = ($si_captcha_opt['si_captcha_error_empty'] != '') ? $si_captcha_opt['si_captcha_error_empty'] : __('Empty CAPTCHA', 'si-captcha');
$error->add('empty_captcha', "<strong>$print_error</strong>: $empty_captcha");
}
return $error;
}
// begin si captcha check
$validate_result = $this->si_captcha_validate_code('log', 'unlink');
if($validate_result != 'valid') {
remove_filter('authenticate', 'wp_authenticate_username_password', 20, 3);
$print_error = ($si_captcha_opt['si_captcha_error_error'] != '') ? $si_captcha_opt['si_captcha_error_error'] : __('ERROR', 'si-captcha');
return new WP_Error('captcha_error', "<strong>$print_error</strong>: $validate_result");
}
// end si captcha check
$userdata = get_user_by('login', $username);
if ( !$userdata ) {
return new WP_Error('invalid_username', sprintf(__('<strong>ERROR</strong>: Invalid username. <a href="%s" title="Password Lost and Found">Lost your password</a>?'), site_url('wp-login.php?action=lostpassword', 'login')));
}
// for WP 3.0+ ONLY!
if( version_compare($wp_version,'3','>=') ) { // wp 3.0 +
if ( is_multisite() ) {
// Is user marked as spam?
if ( 1 == $userdata->spam)
return new WP_Error('invalid_username', __('<strong>ERROR</strong>: Your account has been marked as a spammer.'));
// Is a user's blog marked as spam?
if ( !is_super_admin( $userdata->ID ) && isset($userdata->primary_blog) ) {
$details = get_blog_details( $userdata->primary_blog );
if ( is_object( $details ) && $details->spam == 1 )
return new WP_Error('blog_suspended', __('Site Suspended.'));
}
}
}
$userdata = apply_filters('wp_authenticate_user', $userdata, $password);
if ( is_wp_error($userdata) ) {
return $userdata;
}
if ( !wp_check_password($password, $userdata->user_pass, $userdata->ID) ) {
return new WP_Error('incorrect_password', sprintf(__('<strong>ERROR</strong>: Incorrect password. <a href="%s" title="Password Lost and Found">Lost your password</a>?'), site_url('wp-login.php?action=lostpassword', 'login')));
}
$user = new WP_User($userdata->ID);
return $user;
} // end function si_wp_authenticate_username_password
// check the honeypot trap for spam bots
// hidden empty field honyepot trap for spam bots
function si_captcha_check_honeypot($form_id = 'com') {
global $si_captcha_opt;
if ($si_captcha_opt['si_captcha_honeypot_enable'] == 'false')
return 'ok';
// validate hidden honeypot field
if( isset($_POST["email_$form_id"]) && trim($_POST["email_$form_id"]) != '')
return 'failed honeypot';
return 'ok';
} // end function si_captcha_check_honeypot
// check if the posted capcha code was valid
function si_captcha_validate_code($form_id = 'com', $unlink = 'unlink') {
global $si_captcha_dir, $si_captcha_dir_ns, $si_captcha_opt;
if (isset($_REQUEST['action']) && $_REQUEST['action'] == 'lostpassword' && $form_id == 'log')
return 'valid'; // fixes lostpassword page because add_filter('login_errors' is also being called before
if (isset($_POST['captcha_code']) && empty($_POST['captcha_code']))
return ($si_captcha_opt['si_captcha_error_empty'] != '') ? $si_captcha_opt['si_captcha_error_empty'] : __('Empty CAPTCHA', 'si-captcha');
if($si_captcha_opt['si_captcha_enable_session'] != 'true') {
//captcha without sessions
if (empty($_POST['captcha_code']) || $_POST['captcha_code'] == '') {
return ($si_captcha_opt['si_captcha_error_empty'] != '') ? $si_captcha_opt['si_captcha_error_empty'] : __('Empty CAPTCHA', 'si-captcha');
}else if (!isset($_POST["si_code_$form_id"]) || empty($_POST["si_code_$form_id"])) {
return ($si_captcha_opt['si_captcha_error_token'] != '') ? $si_captcha_opt['si_captcha_error_token'] : __('Missing CAPTCHA token', 'si-captcha');
}else{
$prefix = 'xxxxxx';
if ( isset($_POST["si_code_$form_id"]) && is_string($_POST["si_code_$form_id"]) && preg_match('/^[a-zA-Z0-9]{15,17}$/',$_POST["si_code_$form_id"]) ){
$prefix = $_POST["si_code_$form_id"];
}
if ( is_readable( $si_captcha_dir_ns . $prefix . '.php' ) ) {
include( $si_captcha_dir_ns . $prefix . '.php' );
if ( 0 == strcasecmp( trim(strip_tags($_POST['captcha_code'])), $captcha_word ) ) {
// captcha was matched
if($unlink == 'unlink')
@unlink ($si_captcha_dir_ns . $prefix . '.php');
// empty field honyepot trap for spam bots
$hp_check = $this->si_captcha_check_honeypot("$form_id");
if($hp_check != 'ok')
return ($si_captcha_opt['si_captcha_error_spambot'] != '') ? $si_captcha_opt['si_captcha_error_spambot'] : __('Possible spam bot', 'si-captcha');
return 'valid';
} else {
return ($si_captcha_opt['si_captcha_error_incorrect'] != '') ? $si_captcha_opt['si_captcha_error_incorrect'] : __('Wrong CAPTCHA', 'si-captcha');
}
} else {
return ($si_captcha_opt['si_captcha_error_unreadable'] != '') ? $si_captcha_opt['si_captcha_error_unreadable'] : __('Unreadable CAPTCHA token file', 'si-captcha');
//$this->si_captcha_token_error();
}
}
}else{
//captcha with PHP sessions
if (!isset($_SESSION["securimage_code_si_$form_id"]) || empty($_SESSION["securimage_code_si_$form_id"])) {
return ($si_captcha_opt['si_captcha_error_cookie'] != '') ? $si_captcha_opt['si_captcha_error_cookie'] : __('Unreadable CAPTCHA cookie', 'si-captcha');
}else{
$captcha_code = trim(strip_tags($_POST['captcha_code']));
require_once "$si_captcha_dir/securimage.php";
$img = new Securimage_si();
$img->form_id = $form_id; // makes compatible with multi-forms on same page
$valid = $img->check("$captcha_code");
// Check, that the right CAPTCHA password has been entered, display an error message otherwise.
if($valid == true) {
// empty field honyepot trap for spam bots
$hp_check= $this->si_captcha_check_honeypot("$form_id");
if($hp_check != 'ok')
return ($si_captcha_opt['si_captcha_error_spambot'] != '') ? $si_captcha_opt['si_captcha_error_spambot'] : __('Possible spam bot', 'si-captcha');
// ok can continue
return 'valid';
} else {
return ($si_captcha_opt['si_captcha_error_incorrect'] != '') ? $si_captcha_opt['si_captcha_error_incorrect'] : __('Wrong CAPTCHA', 'si-captcha');
}
}
}
} // end function si_captcha_validate_code
// displays the CAPTCHA in the forms
function si_captcha_captcha_html($label = 'si_image', $form_id = 'com') {
global $si_captcha_url, $si_captcha_dir, $si_captcha_url_ns, $si_captcha_dir_ns, $si_captcha_opt;
$capt_disable_sess = 0;
if ($si_captcha_opt['si_captcha_enable_session'] != 'true')
$capt_disable_sess = 1;
// url for no session captcha image
$securimage_show_url = $si_captcha_url .'/securimage_show.php?';
$securimage_size = 'width="175" height="60"';
if($si_captcha_opt['si_captcha_captcha_small'] == 'true' || $label == 'si_image_side_login' ) {
$securimage_show_url .= 'si_sm_captcha=1&';
$securimage_size = 'width="132" height="45"';
}
$parseUrl = parse_url($si_captcha_url);
$securimage_url = $parseUrl['path'];
$securimage_show_url .= 'si_form_id=' .$form_id;
if($capt_disable_sess) {
// clean out old captcha no session temp files
$this->si_captcha_clean_temp_dir($si_captcha_dir_ns, 30);
// pick new prefix token
$prefix_length = 16;
$prefix_characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz';
$prefix = '';
$prefix_count = strlen($prefix_characters);
while ($prefix_length--) {
$prefix .= $prefix_characters[mt_rand(0, $prefix_count-1)];
}
$securimage_show_rf_url = $securimage_show_url . '&prefix=';
$securimage_show_url .= '&prefix='.$prefix;
}
if($si_captcha_opt['si_captcha_honeypot_enable'] == 'true' ) {
// hidden empty honeypot field
echo '
<div style="display:none;">
<label for="email_'.$form_id.'"><small>'.__('Leave this field empty', 'si-captcha').'</small></label>
<input type="text" name="email_'.$form_id.'" id="email_'.$form_id.'" value="" />
</div>
';
}
echo '<img id="'.$label.'" class="si-captcha" src="'.$securimage_show_url.'" '.$securimage_size.' alt="';
echo ($si_captcha_opt['si_captcha_tooltip_captcha'] != '') ? esc_attr( $si_captcha_opt['si_captcha_tooltip_captcha'] ) : esc_attr(__('CAPTCHA Image', 'si-captcha'));
echo '" title="';
echo ($si_captcha_opt['si_captcha_tooltip_captcha'] != '') ? esc_attr( $si_captcha_opt['si_captcha_tooltip_captcha'] ) : esc_attr(__('CAPTCHA Image', 'si-captcha'));
echo '" />'."\n";
if($capt_disable_sess) {
echo ' <input id="si_code_'.$form_id.'" name="si_code_'.$form_id.'" type="hidden" value="'.$prefix.'" />'."\n";
}
echo ' <div id="si_refresh_'.$form_id.'">'."\n";
echo '<a href="#" rel="nofollow" title="';
echo ($si_captcha_opt['si_captcha_tooltip_refresh'] != '') ? esc_attr( $si_captcha_opt['si_captcha_tooltip_refresh'] ) : esc_attr(__('Refresh Image', 'si-captcha'));
if($capt_disable_sess) {
echo '" onclick="si_captcha_refresh(\''.$label.'\',\''.$form_id.'\',\''.$securimage_url.'\',\''.$securimage_show_rf_url.'\'); return false;">'."\n";
}else{
echo '" onclick="document.getElementById(\''.$label.'\').src = \''.$securimage_show_url.'&sid=\''.' + Math.random(); return false;">'."\n";
}
echo ' <img class="captchaImgRefresh" src="'.$si_captcha_url.'/images/refresh.png" width="22" height="20" alt="';
echo ($si_captcha_opt['si_captcha_tooltip_refresh'] != '') ? esc_attr( $si_captcha_opt['si_captcha_tooltip_refresh'] ) : esc_attr(__('Refresh Image', 'si-captcha'));
echo '" onclick="this.blur();" /></a>
</div>
';
} // end function si_captcha_captcha_html
function si_captcha_plugin_action_links( $links, $file ) {
//Static so we don't call plugin_basename on every plugin row.
static $this_plugin;
if ( ! $this_plugin ) $this_plugin = plugin_basename(__FILE__);
if ( $file == $this_plugin ){
$settings_link = '<a href="plugins.php?page=si-captcha-for-wordpress/si-captcha.php">' . __('Settings', 'si-captcha') . '</a>';
array_unshift( $links, $settings_link );
}
return $links;
} // end function si_captcha_plugin_action_links
function si_captcha_init() {
global $wpmu;
if (function_exists('load_plugin_textdomain')) {
if ($wpmu == 1) {
load_plugin_textdomain('si-captcha', false, dirname(plugin_basename(__FILE__)).'/si-captcha-for-wordpress/languages' );
} else {
load_plugin_textdomain('si-captcha', false, dirname(plugin_basename(__FILE__)).'/languages' );
}
}
} // end function si_captcha_init
function si_captcha_start_session() {
// a PHP session cookie is set so that the captcha can be remembered and function
// this has to be set before any header output
//echo "before starting session si captcha";
if( !isset( $_SESSION ) ) { // play nice with other plugins
if ( !defined('XMLRPC_REQUEST') ) { // buddypress fix
//set the $_SESSION cookie into HTTPOnly mode for better security
if (version_compare(PHP_VERSION, '5.2.0') >= 0) // supported on PHP version 5.2.0 and higher
@ini_set("session.cookie_httponly", 1);
session_cache_limiter ('private, must-revalidate');
session_start();
//echo "session started si captcha";
}
}
} // function si_captcha_start_session
// needed for making temp directories for attachments and captcha session files
function si_captcha_init_temp_dir($dir) {
$dir = trailingslashit( $dir );
// make the temp directory
wp_mkdir_p( $dir );
//@chmod( $dir, 0733 );
$htaccess_file = $dir . '.htaccess';
if ( !file_exists( $htaccess_file ) ) {
if ( $handle = @fopen( $htaccess_file, 'w' ) ) {
fwrite( $handle, "Deny from all\n" );
fclose( $handle );
}
}
$php_file = $dir . 'index.php';
if ( !file_exists( $php_file ) ) {
if ( $handle = @fopen( $php_file, 'w' ) ) {
fwrite( $handle, '<?php //do not delete ?>' );
fclose( $handle );
}
}
} // end function si_captcha_init_temp_dir
// needed for emptying temp directories for attachments and captcha session files
function si_captcha_clean_temp_dir($dir, $minutes = 60) {
// deletes all files over xx minutes old in a temp directory
if ( ! is_dir( $dir ) || ! is_readable( $dir ) || ! is_writable( $dir ) )
return false;
$count = 0;
if ( $handle = @opendir( $dir ) ) {
while ( false !== ( $file = readdir( $handle ) ) ) {
if ( $file == '.' || $file == '..' || $file == '.htaccess' || $file == 'index.php')
continue;
$stat = @stat( $dir . $file );
if ( ( $stat['mtime'] + $minutes * 60 ) < time() ) {
@unlink( $dir . $file );
$count += 1;
}
}
closedir( $handle );
}
return $count;
}
// functions for form vars
function si_stripslashes($string) {
//if (get_magic_quotes_gpc()) {
// wordpress always needs stripslashes
return stripslashes($string);
//} else {
//return $string;
// }
} // end function si_stripslashes
function si_captcha_convert_css($string,$css) {
global $si_captcha_option_defaults;
if( preg_match("/^style=\"(.*)\"$/i", $string, $matches) ){
return $matches[1];
}
if( preg_match("/^class=\"(.*)\"$/i", $string) ){
return (isset($si_captcha_option_defaults[$css])) ? $si_captcha_option_defaults[$css] : $string;
}
return $string;
} // end function si_captcha_convert_css
function si_captcha_admin_head() {
// only load this header stuff on the admin settings page
if(isset($_GET['page']) && is_string($_GET['page']) && preg_match('/si-captcha.php$/',$_GET['page']) ) {
?>
<!-- begin SI CAPTCHA Anti-Spam - admin settings page header code -->
<style type="text/css">
div.si-star-holder { position: relative; height:19px; width:100px; font-size:19px;}
div.si-star {height: 100%; position:absolute; top:0px; left:0px; background-color: transparent; letter-spacing:1ex; border:none;}
.si-star1 {width:20%;} .si-star2 {width:40%;} .si-star3 {width:60%;} .si-star4 {width:80%;} .si-star5 {width:100%;}
.si-star.si-star-rating {background-color: #fc0;}
.si-star img{display:block; position:absolute; right:0px; border:none; text-decoration:none;}
div.si-star img {width:19px; height:19px; border-left:1px solid #fff; border-right:1px solid #fff;}
.si-notice{background-color:#ffffe0;border-color:#e6db55;border-width:1px;border-style:solid;padding:5px;margin:5px 5px 20px;-moz-border-radius:3px;-khtml-border-radius:3px;-webkit-border-radius:3px;border-radius:3px;}
.fscf_left {clear:left; float:left;}
.fscf_img {margin:0 10px 10px 0;}
.fscf_tip {text-align:left; display:none;color:#006B00;padding:5px;}
</style>
<!-- end SI CAPTCHA Anti-Spam - admin settings page header code -->
<?php
} // end if(isset($_GET['page'])
}
function si_captcha_login_head(){
global $si_captcha_opt;
echo '<script type="text/javascript" src="'.plugins_url('si-captcha-for-wordpress/captcha/si_captcha.js?ver='.time()).'"></script>'."\n";
// only load this css on the blog pages where login/register could be
if( $si_captcha_opt['si_captcha_external_style'] == 'true' )
return;
?>
<!-- begin SI CAPTCHA Anti-Spam - login/register form style -->
<style type="text/css">
div#captchaImgDiv { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_div_style'],'si_captcha_captcha_div_style'); ?> }
.captchaSizeDivSmall { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_div_style_sm'],'si_captcha_captcha_div_style_sm'); ?> }
.captchaSizeDivLarge { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_div_style_m'],'si_captcha_captcha_div_style_m'); ?> }
img#si_image_com,#si_image_reg,#si_image_log,#si_image_side_login { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_image_style'],'si_captcha_captcha_image_style'); ?> }
.captchaImgRefresh { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_refresh_image_style'],'si_captcha_refresh_image_style'); ?> }
div#captchaInputDiv { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_input_div_style'],'si_captcha_captcha_input_div_style'); ?> }
label#captcha_code_label { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_comment_label_style'],'si_captcha_comment_label_style'); ?> }
input#captcha_code { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_comment_field_style'],'si_captcha_comment_field_style'); ?> }
</style>
<!-- end SI CAPTCHA Anti-Spam - login/register form style -->
<?php
}
function si_captcha_add_css(){
global $si_captcha_opt, $si_captcha_add_script;
if (!$si_captcha_add_script)
return;
// only load this css on the blog pages where the captcha could be
wp_enqueue_script('jquery');
if( $si_captcha_opt['si_captcha_external_style'] != 'true' ) {
?>
<script type="text/javascript">
//<![CDATA[
var si_captcha_styles = "\
<!-- begin SI CAPTCHA Anti-Spam - comment form style -->\
<style type='text/css'>\
div#captchaImgDiv { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_div_style'],'si_captcha_captcha_div_style'); ?> }\
.captchaSizeDivSmall { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_div_style_sm'],'si_captcha_captcha_div_style_sm'); ?> }\
.captchaSizeDivLarge { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_div_style_m'],'si_captcha_captcha_div_style_m'); ?> }\
img#si_image_com,#si_image_reg,#si_image_log,#si_image_side_login { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_image_style'],'si_captcha_captcha_image_style'); ?> }\
.captchaImgRefresh { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_refresh_image_style'],'si_captcha_refresh_image_style'); ?> }\
div#captchaInputDiv { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_captcha_input_div_style'],'si_captcha_captcha_input_div_style'); ?> }\
label#captcha_code_label { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_comment_label_style'],'si_captcha_comment_label_style'); ?> }\
input#captcha_code { <?php echo $this->si_captcha_convert_css($si_captcha_opt['si_captcha_comment_field_style'],'si_captcha_comment_field_style'); ?> }\
</style>\
<!-- end SI CAPTCHA Anti-Spam - comment form style -->\
";
jQuery(document).ready(function($) {
$('head').append(si_captcha_styles);
});
//]]>
</script>
<?php
}
}
function si_captcha_add_script(){
global $si_captcha_opt, $si_captcha_url, $si_captcha_add_script;
if (!$si_captcha_add_script)
return;
// only load this javascript on the blog pages where captcha could be
wp_register_script('si_captcha', $si_captcha_url.'/si_captcha.js', array(), '1.0', true);
wp_print_scripts('si_captcha');
}
function get_captcha_url_si() {
global $wpmu, $current_blog;
// The captcha URL cannot be on a different domain as the site rewrites to or the cookie won't work
// also the path has to be correct or the image won't load.
// WP_PLUGIN_URL was not getting the job done! this code should fix it.
//http://media.example.com/wordpress WordPress address get_option( 'siteurl' )
//http://tada.example.com Blog address get_option( 'home' )
//http://example.com/wordpress WordPress address get_option( 'siteurl' )
//http://example.com/ Blog address get_option( 'home' )
$site_uri = parse_url(get_option('home'));
$home_uri = parse_url(get_option('siteurl'));
$si_dir = '/si-captcha-for-wordpress/captcha';
$url = WP_PLUGIN_URL . $si_dir;
if ($site_uri['host'] == $home_uri['host']) {
$url = WP_PLUGIN_URL . $si_dir;
if ($wpmu == 1)
$url = get_option('siteurl') . '/' . MUPLUGINDIR . $si_dir;
} else {
$url = get_option( 'home' ) . '/' . PLUGINDIR . $si_dir;
if ($wpmu == 1)
$url = get_option( 'home' ) . '/' . MUPLUGINDIR . $si_dir;
}
// "MU domain mapping" plugin compatabilty
if ( isset( $current_blog ) && !empty( $current_blog->domain ) && !empty( $current_blog->path ) )
$url = (is_ssl() ? 'https://' : 'http://') . $current_blog->domain . $current_blog->path . ($wpmu == 1 ? MUPLUGINDIR : PLUGINDIR) . $si_dir;
// set the type of request (SSL or not)
if ( is_ssl() ) {
$url = preg_replace('|http://|', 'https://', $url);
}
return $url;
}
} // end of class
} // end of if class
// backwards compatibility
// Pre-2.8 compatibility
if ( ! function_exists( 'esc_html' ) ) {
function esc_html( $text ) {
return wp_specialchars( $text );
}
}
// Pre-2.8 compatibility
if ( ! function_exists( 'esc_attr' ) ) {
function esc_attr( $text ) {
return attribute_escape( $text );
}
}
if (class_exists("siCaptcha")) {
$si_image_captcha = new siCaptcha();
}
if (isset($si_image_captcha)) {
global $wp_version, $si_captcha_opt;
// WordPress MU detection
// 0 Regular WordPress installation
// 1 WordPress MU Forced Activated
// 2 WordPress MU Optional Activation
$wpmu = 0;
if (basename(dirname(__FILE__)) == "mu-plugins") // forced activated
$wpmu = 1;
else if (basename(dirname(__FILE__)) == "si-captcha-for-wordpress" && function_exists('is_site_admin')) // optionally activated
$wpmu = 2;
$si_captcha_dir = WP_PLUGIN_DIR . '/si-captcha-for-wordpress/captcha';
if ($wpmu == 1) {
if ( defined( 'MUPLUGINDIR' ) )
$si_captcha_dir = MUPLUGINDIR . '/si-captcha-for-wordpress/captcha';
else
$si_captcha_dir = WP_CONTENT_DIR . '/mu-plugins/si-captcha-for-wordpress/captcha';
}
$si_captcha_url = $si_image_captcha->get_captcha_url_si();
// only used for the no-session captcha setting
$si_captcha_url_ns = $si_captcha_url . '/cache/';
$si_captcha_dir_ns = $si_captcha_dir . '/cache/';
$si_image_captcha->si_captcha_init_temp_dir($si_captcha_dir_ns);
//Actions
add_action('init', array(&$si_image_captcha, 'si_captcha_init'));
// get the options now
$si_image_captcha->si_captcha_get_options();
if ( isset($si_captcha_opt['si_captcha_enable_session']) && $si_captcha_opt['si_captcha_enable_session'] != 'true') {
// add javascript (conditionally to footer)
// http://scribu.net/wordpress/optimal-script-loading.html
add_action( 'wp_footer', array(&$si_image_captcha,'si_captcha_add_script'));
} else {
// start the PHP session
// buddypress had session error on member and groups pages, so start session here instead of init
add_action('plugins_loaded', array(&$si_image_captcha, 'si_captcha_start_session'));
}
// si captcha admin options
add_action('admin_menu', array(&$si_image_captcha,'si_captcha_add_tabs'),1);
add_action('admin_head', array(&$si_image_captcha,'si_captcha_admin_head'),1);
if( $si_captcha_opt['si_captcha_external_style'] != 'true' && !is_admin() ) {
// css is added to footer, then jquery appends it to head
add_action( 'wp_footer', array(&$si_image_captcha,'si_captcha_add_css'));
}
// adds "Settings" link to the plugin action page
add_filter( 'plugin_action_links', array(&$si_image_captcha,'si_captcha_plugin_action_links'),10,2);
if ($si_captcha_opt['si_captcha_comment'] == 'true') {
// for WP 3.0+
if( version_compare($wp_version,'3','>=') && !function_exists('sfc_commentform_submit') ) { // wp 3.0 +
// SFC Comment plugin was removing the captcha when logged into facebook
add_action( 'comment_form_after_fields', array(&$si_image_captcha, 'si_captcha_comment_form_wp3'), 1);
add_action( 'comment_form_logged_in_after', array(&$si_image_captcha, 'si_captcha_comment_form_wp3'), 1);
}
// for WP before WP 3.0
add_action('comment_form', array(&$si_image_captcha, 'si_captcha_comment_form'), 1);
add_filter('preprocess_comment', array(&$si_image_captcha, 'si_captcha_comment_post'), 1);
}
if ($si_captcha_opt['si_captcha_register'] == 'true') {
add_action('login_head', array( &$si_image_captcha, 'si_captcha_login_head') );
add_action('register_form', array(&$si_image_captcha, 'si_captcha_register_form'), 10);
add_filter('registration_errors', array(&$si_image_captcha, 'si_captcha_register_post'), 10);
}
if ($wpmu && $si_captcha_opt['si_captcha_register'] == 'true') {
// for buddypress 1.1 only
add_action('bp_before_registration_submit_buttons', array( &$si_image_captcha, 'si_captcha_bp_signup_form' ));
// for buddypress 1.1 only
add_action('bp_signup_validate', array( &$si_image_captcha, 'si_captcha_bp_signup_validate' ));
// for wpmu and (buddypress versions before 1.1)
add_action('signup_extra_fields', array( &$si_image_captcha, 'si_captcha_wpmu_signup_form' ));
// for wpmu and (buddypress versions before 1.1)
add_filter('wpmu_validate_user_signup', array( &$si_image_captcha, 'si_captcha_wpmu_signup_post'));
}
if ($si_captcha_opt['si_captcha_login'] == 'true') {
add_action('login_form', array( &$si_image_captcha, 'si_captcha_login_form' ) );
add_action('login_head', array( &$si_image_captcha, 'si_captcha_login_head' ) );
add_action('bp_login_bar_logged_out', array( &$si_image_captcha, 'si_captcha_bp_login_form' ) );
add_action('bp_sidebar_login_form', array( &$si_image_captcha, 'si_captcha_bp_login_sidebar_form' ) );
add_filter('authenticate', array( &$si_image_captcha, 'si_wp_authenticate_username_password'), 9, 3);
}
if ($si_captcha_opt['si_captcha_lostpwd'] == 'true') {
add_action('lostpassword_form', array( &$si_image_captcha, 'si_captcha_register_form'), 10);
add_action('lostpassword_post', array( &$si_image_captcha, 'si_captcha_lostpassword_post'), 10);
}
// add_action('bbp_template_notices', array( &$si_image_captcha, 'si_captcha_register_form'), 10);
// options deleted when this plugin is deleted in WP 2.7+
if ( function_exists('register_uninstall_hook') )
register_uninstall_hook(__FILE__, 'si_captcha_unset_options');
}
// end of file