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wp-useragent.php
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wp-useragent.php
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<?php
/*
* Plugin Name: WP-UserAgent
* Plugin URI: https://www.kyleabaker.com/goodies/coding/wp-useragent/
* Description: A simple User-Agent detection plugin that lets you easily insert icons and/or textual web browser and operating system details with each comment.
* Version: 1.1.8
* Author: Kyle Baker
* Author URI: https://www.kyleabaker.com/
* Text Domain: wp-useragent
* Domain Path: /languages/
* //Author: Fernando Briano
* //Author URI: http://picandocodigo.net
*/
/* Copyright 2008-2017 Kyle Baker (email: kyleabaker@gmail.com)
//Copyright 2008 Fernando Briano (email : transformers.es@gmail.com)
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 3 of the License, or
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
// Security measure
defined( 'ABSPATH' ) or die( 'Cannot access pages directly.' );
// Pre-2.6 compatibility
if (!defined('WP_CONTENT_URL'))
define('WP_CONTENT_URL', get_option('siteurl').'/wp-content');
if (!defined('WP_CONTENT_DIR'))
define('WP_CONTENT_DIR', ABSPATH.'wp-content');
if (!defined('WP_PLUGIN_URL'))
define('WP_PLUGIN_URL', WP_CONTENT_URL.'/plugins');
if (!defined('WP_PLUGIN_DIR'))
define('WP_PLUGIN_DIR', WP_CONTENT_DIR.'/plugins');
// Include our main UA detection functions
include(WP_PLUGIN_DIR.'/wp-useragent/wp-useragent-detect-device.php');
include(WP_PLUGIN_DIR.'/wp-useragent/wp-useragent-detect-os.php');
include(WP_PLUGIN_DIR.'/wp-useragent/wp-useragent-detect-platform.php');
include(WP_PLUGIN_DIR.'/wp-useragent/wp-useragent-detect-trackback.php');
include(WP_PLUGIN_DIR.'/wp-useragent/wp-useragent-detect-webbrowser.php');
include(WP_PLUGIN_DIR.'/wp-useragent/wp-useragent-detect-webbrowser-version.php');
// Plugin Options
$wpua_img_url = WP_PLUGIN_URL.'/wp-useragent/img/';
$wpua_doctype = get_option('wpua_doctype');
$wpua_icon_size = get_option('wpua_icon_size');
$wpua_show_text_icons = get_option('wpua_show_text_icons');
$wpua_icon_style = get_option('wpua_icon_style');
$wpua_icon_style_input = get_option('wpua_icon_style_input');
$wpua_text_using = get_option('wpua_text_using');
$wpua_text_on = get_option('wpua_text_on');
$wpua_text_via = get_option('wpua_text_via');
$wpua_show_version = get_option('wpua_show_version');
$wpua_text_links = get_option('wpua_text_links');
$wpua_show_full_ua = get_option('wpua_show_full_ua');
$wpua_hide_unknown_ua = get_option('wpua_hide_unknown_ua');
$wpua_admin_only = get_option('wpua_admin_only');
$wpua_output_location = get_option('wpua_output_location');
// Migrate settings from previous database schema if necessary
$wpua_old_output_location = get_option('ua_output_location');
if (empty($wpua_output_location) && !empty($wpua_old_output_location))
{
// Attempt to retrieve settings stored using previous schema (transform where needed)
$wpua_doctype = get_option('ua_doctype');
$wpua_icon_size = get_option('ua_comment_size');
$wpua_show_text_icons = (get_option('ua_show_text') === '2') ? 'icons' : ((get_option('ua_show_text') === '3') ? 'text' : 'icons_and_text');
$wpua_icon_style = (get_option('ua_image_style') === '2') ? 'inline' : ((get_option('ua_image_style') === '3') ? 'css' : 'default');
$wpua_icon_style_input = get_option('ua_image_css');
$wpua_text_using = get_option('ua_text_surfing');
$wpua_text_on = get_option('ua_text_on');
$wpua_text_via = get_option('ua_text_via');
$wpua_text_links = (get_option('ua_text_links') === '1') ? 'true' : 'false';
$wpua_show_full_ua = get_option('ua_show_ua_bool');
$wpua_hide_unknown_ua = get_option('ua_hide_unknown_bool');
$wpua_admin_only = get_option('ua_admin_only_bool');
$wpua_output_location = get_option('ua_output_location');
// Add new options and attempt to specify no autoload
if ( ! add_option( 'wpua_doctype', $wpua_doctype, '', 'no' ) ) update_option( 'wpua_doctype', $wpua_doctype );
if ( ! add_option( 'wpua_icon_size', $wpua_icon_size, '', 'no' ) ) update_option( 'wpua_icon_size', $wpua_icon_size );
if ( ! add_option( 'wpua_show_text_icons', $wpua_show_text_icons, '', 'no' ) ) update_option( 'wpua_show_text_icons', $wpua_show_text_icons );
if ( ! add_option( 'wpua_icon_style', $wpua_icon_style, '', 'no' ) ) update_option( 'wpua_icon_style', $wpua_icon_style );
if ( ! add_option( 'wpua_icon_style_input', $wpua_icon_style_input, '', 'no' ) ) update_option( 'wpua_icon_style_input', $wpua_icon_style_input );
if ( ! add_option( 'wpua_text_using', $wpua_text_using, '', 'no' ) ) update_option( 'wpua_text_using', $wpua_text_using );
if ( ! add_option( 'wpua_text_on', $wpua_text_on, '', 'no' ) ) update_option( 'wpua_text_on', $wpua_text_on );
if ( ! add_option( 'wpua_text_via', $wpua_text_via, '', 'no' ) ) update_option( 'wpua_text_via', $wpua_text_via );
if ( ! add_option( 'wpua_text_links', $wpua_text_links, '', 'no' ) ) update_option( 'wpua_text_links', $wpua_text_links );
if ( ! add_option( 'wpua_show_full_ua', $wpua_show_full_ua, '', 'no' ) ) update_option( 'wpua_show_full_ua', $wpua_show_full_ua );
if ( ! add_option( 'wpua_hide_unknown_ua', $wpua_hide_unknown_ua, '', 'no' ) ) update_option( 'wpua_hide_unknown_ua', $wpua_hide_unknown_ua );
if ( ! add_option( 'wpua_admin_only', $wpua_admin_only, '', 'no' ) ) update_option( 'wpua_admin_only', $wpua_admin_only );
if ( ! add_option( 'wpua_output_location', $wpua_output_location, '', 'no' ) ) update_option( 'wpua_output_location', $wpua_output_location );
// New schema is initialized, ready to purge old schema...
delete_option('ua_doctype');
delete_option('ua_comment_size');
delete_option('ua_track_size');
delete_option('ua_show_text');
delete_option('ua_image_style');
delete_option('ua_image_css');
delete_option('ua_text_surfing');
delete_option('ua_text_on');
delete_option('ua_text_via');
delete_option('ua_text_links');
delete_option('ua_show_ua_bool');
delete_option('ua_hide_unknown_bool');
delete_option('ua_admin_only_bool');
delete_option('ua_output_location');
}
// Add new feature option for showing version to db if it didn't previously exist
if (empty($wpua_show_version))
{
$wpua_show_version = 'full';
if ( ! add_option( 'wpua_show_version', $wpua_show_version, '', 'no' ) ) update_option( 'wpua_show_version', $wpua_show_version );
}
// Set defaults
if (empty($wpua_doctype)) $wpua_doctype = 'html';
if (empty($wpua_icon_size)) $wpua_icon_size = '16';
if (empty($wpua_show_text_icons)) $wpua_show_text_icons = 'icons_and_text';
if (empty($wpua_icon_style)) $wpua_icon_style = 'default';
if (empty($wpua_icon_style_input) && (is_null($wpua_icon_style_input) || $wpua_icon_style === 'default')) $wpua_icon_style_input = 'border:0px;vertical-align:middle;';
if (empty($wpua_text_using) && is_null($wpua_text_using)) $wpua_text_using = '';
if (empty($wpua_text_on) && is_null($wpua_text_on)) $wpua_text_on = '';
if (empty($wpua_text_via) && is_null($wpua_text_via)) $wpua_text_via = '';
if (empty($wpua_show_version)) $wpua_show_version = 'full';
if (empty($wpua_text_links)) $wpua_text_links = 'false';
if (empty($wpua_show_full_ua)) $wpua_show_full_ua = 'true';
if (empty($wpua_hide_unknown_ua)) $wpua_hide_unknown_ua = 'false';
if (empty($wpua_admin_only)) $wpua_admin_only = 'false';
if (empty($wpua_output_location)) $wpua_output_location = 'before';
// Safe escape user entered input
$wpua_icon_style_input = wpua_str_escape($wpua_icon_style_input);
$wpua_text_using = wpua_str_escape($wpua_text_using);
$wpua_text_on = wpua_str_escape($wpua_text_on);
$wpua_text_via = wpua_str_escape($wpua_text_via);
/**
* Escape quotes from user input so options are displayed correctly
*/
function wpua_str_escape($str)
{
return esc_attr(htmlspecialchars(wp_strip_all_tags($str, false)));
}
/**
* Initialized by comment_text hook for each comment.
*/
function wpua_useragent()
{
global $comment, $useragent, $wpua_output_location;
// Retrieve user agent string from comment metadata
$useragent = wpua_str_escape($comment->comment_agent);
// Display user agent (before, after, custom), render comment if
// needed and re-apply filter for next comment
if ($wpua_output_location === 'before')
{
wpua_display_useragent(true);
wpua_display_comment();
add_filter('comment_text', 'wpua_useragent');
}
elseif ($wpua_output_location === 'after')
{
wpua_display_comment();
wpua_display_useragent(true);
add_filter('comment_text', 'wpua_useragent');
}
elseif ($wpua_output_location === 'custom')
{
wpua_display_useragent();
}
}
/**
* Print user comment now
*/
function wpua_display_comment()
{
global $comment;
remove_filter('comment_text', 'wpua_useragent');
apply_filters('get_comment_text', $comment->comment_content, $comment);
// The following conditional will hopefully prevent a problem where
// the echo statement will interrupt redirects from the comment page.
if (empty($_POST['comment_post_ID']) || is_admin())
{
echo apply_filters('comment_text', $comment->comment_content, $comment);
}
}
/**
* DEPRECATED: Please use wpua_custom_output() instead
* Deprecated in v1.0.9. Will be removed in a future release.
*/
function useragent_output_custom()
{
wpua_custom_output();
}
/**
* Custom function for displaying the output in non-standard locations. Can
* be used to display user agent in a custom area of user's template.
*/
function wpua_custom_output()
{
global $wpua_output_location, $useragent, $comment;
if ($wpua_output_location === 'custom')
{
$useragent = wpua_str_escape($comment->comment_agent);
wpua_display_useragent();
}
}
/**
* Generates html markup for final user agent output
*/
function wpua_display_useragent($wpua_wrapper_div = false)
{
global $comment, $wpua_show_text_icons, $wpua_text_using, $wpua_text_on, $wpua_text_via, $wpua_show_full_ua, $wpua_hide_unknown_ua, $wpua_doctype;
// Check if the comment is a trackback or a comment
$wpua_useragent = '';
if ($comment->comment_type === 'trackback' || $comment->comment_type === 'pingback')
{
// We've got a trackback...
$trackback = wpua_detect_trackback();
// Should unknown trackbacks be filtered? Display text, icons, or both?
if ($wpua_hide_unknown_ua !== 'true' || !strpos($trackback,'Unknown'))
{
$wpua_useragent = ($wpua_show_text_icons === 'icons_and_text' || $wpua_show_text_icons === 'text') ? "$wpua_text_via $trackback" : $trackback;
}
}
else
{
// We've got a comment...
$webbrowser = wpua_detect_webbrowser();
$platform = wpua_detect_platform();
// Should unknown browsers/platforms be filtered? Display text, icons, or both?
if ($wpua_hide_unknown_ua === 'true' && strpos($webbrowser,'Unknown') && strpos($platform,'Unknown'))
{
// Leave the useragent empty since web browser and platform were unknown and option to hide unknowns is enabled.
}
elseif ($wpua_hide_unknown_ua === 'true' && strpos($webbrowser,'Unknown'))
{
// Web browser was unknown and option to hide unknowns is enabled, only return the platform.
$wpua_useragent = ($wpua_show_text_icons === 'icons_and_text' || $wpua_show_text_icons === 'text') ? "$wpua_text_on $platform" : $platform;
}
elseif ($wpua_hide_unknown_ua === 'true' && strpos($platform,'Unknown'))
{
// Platform was unknown and option to hide unknowns is enabled, only return the web browser.
$wpua_useragent = ($wpua_show_text_icons === 'icons_and_text' || $wpua_show_text_icons === 'text') ? "$wpua_text_using $webbrowser" : $webbrowser;
}
else
{
$wpua_useragent = ($wpua_show_text_icons === 'icons_and_text' || $wpua_show_text_icons === 'text') ? "$wpua_text_using $webbrowser $wpua_text_on $platform" : $webbrowser.$platform;
}
}
// Does the user want to display the full useragent string?
if ($wpua_show_full_ua === 'true')
{
// Attach the full ua string to the output.
$br = (strlen($wpua_useragent) > 0) ? (($wpua_doctype === 'html') ? '<br>' : '<br />') : '';
$wpua_useragent .= "$br<small>".wpua_str_escape($comment->comment_agent)."</small>";
}
if ($wpua_wrapper_div === true)
{
// Wrap WP-UserAgent output in div
$wpua_useragent = "<div class='wp-useragent'>$wpua_useragent</div>";
}
// The following conditional will hopefully prevent a problem where
// the echo statement will interrupt redirects from the comment page.
if (empty($_POST['comment_post_ID']) || is_admin()) echo $wpua_useragent;
}
/**
* Return icon and/or text
*/
function wpua_get_icon_text($link, $title, $code, $type)
{
$icon = wpua_get_icon($title, $code, $type);
$text = wpua_get_text($link, $title);
return "$icon $text";
}
/**
* Generates html markup for <img> tags
*/
function wpua_get_icon($title, $code, $type)
{
global $wpua_show_text_icons, $wpua_icon_size, $wpua_icon_style, $wpua_icon_style_input, $wpua_img_url, $wpua_doctype;
if ($wpua_show_text_icons === 'icons_and_text' || $wpua_show_text_icons === 'icons')
{
// Generate image class or style (most commonly using default style)
$img_style = ($wpua_icon_style === 'css') ? 'class="'.$wpua_icon_style_input.'"' : 'style="'.$wpua_icon_style_input.'"';
// Set the img to display browser/os/device. Ex. http://blogurl/plugins/plugin-name/size/net-os-device/code.png
$img_src = $wpua_img_url.$wpua_icon_size.$type.$code.'.png';
// Select the correct closing tag based on doctype
$img_close = ($wpua_doctype === 'html') ? '' : ' /';
return "<img src='$img_src' title='$title' $img_style alt='$title' height='$wpua_icon_size' width='$wpua_icon_size'$img_close>";
}
return '';
}
/**
* Generates html markup for link <a> tags or returns title if links are disabled
*/
function wpua_get_text($link, $title)
{
global $wpua_show_text_icons, $wpua_text_links;
if ( ($wpua_show_text_icons === 'icons_and_text' || $wpua_show_text_icons === 'text') && $wpua_text_links === 'true' && $title !== 'Unknown')
{
return "<a href='$link' title='$title' rel='nofollow'>$title</a>";
}
elseif ($wpua_show_text_icons === 'icons_and_text' || $wpua_show_text_icons === 'text')
{
return $title;
}
return '';
}
/**
* Add a link to our Options page for Admin users.
*/
add_action('admin_menu', 'wpua_add_option_page');
function wpua_add_option_page()
{
add_options_page('WP-UserAgent', 'WP-UserAgent', 'manage_options', 'wp-useragent/wp-useragent-options.php');
}
/**
* Add quick links to plugins page
*/
$plugin_basename = plugin_basename(__FILE__);
add_filter("plugin_action_links_$plugin_basename", 'wpua_add_action_links' );
function wpua_add_action_links( $links )
{
// Add a link to this plugin's 'Settings' page
$settings_link = '<a href="options-general.php?page=wp-useragent/wp-useragent-options.php">Settings</a>';
array_unshift($links, $settings_link);
return $links;
}
// If the user selected to display output in a standard location
// and not a custom location then lets add a filter here.
if ($wpua_admin_only === 'true' && is_admin())
{
if ($wpua_output_location !== 'custom')
{
add_filter('comment_text', 'wpua_useragent');
}
}
elseif ($wpua_admin_only !== 'true' && $wpua_output_location !== 'custom')
{
add_filter('comment_text', 'wpua_useragent');
}
/**
* Add activation hook to create necessary db options with autoload disabled
*/
register_activation_hook( __FILE__, 'wpua_activation' );
function wpua_activation()
{
// Add new options and attempt to specify no autoload
if ( ! add_option( 'wpua_doctype', '', '', 'no' ) ) update_option( 'wpua_doctype', '' );
if ( ! add_option( 'wpua_icon_size', '', '', 'no' ) ) update_option( 'wpua_icon_size', '' );
if ( ! add_option( 'wpua_show_text_icons', '', '', 'no' ) ) update_option( 'wpua_show_text_icons', '' );
if ( ! add_option( 'wpua_icon_style', '', '', 'no' ) ) update_option( 'wpua_icon_style', '' );
if ( ! add_option( 'wpua_icon_style_input', '', '', 'no' ) ) update_option( 'wpua_icon_style_input', '' );
if ( ! add_option( 'wpua_text_using', '', '', 'no' ) ) update_option( 'wpua_text_using', '' );
if ( ! add_option( 'wpua_text_on', '', '', 'no' ) ) update_option( 'wpua_text_on', '' );
if ( ! add_option( 'wpua_text_via', '', '', 'no' ) ) update_option( 'wpua_text_via', '' );
if ( ! add_option( 'wpua_show_version', '', '', 'no' ) ) update_option( 'wpua_show_version', '' );
if ( ! add_option( 'wpua_text_links', '', '', 'no' ) ) update_option( 'wpua_text_links', '' );
if ( ! add_option( 'wpua_show_full_ua', '', '', 'no' ) ) update_option( 'wpua_show_full_ua', '' );
if ( ! add_option( 'wpua_hide_unknown_ua', '', '', 'no' ) ) update_option( 'wpua_hide_unknown_ua', '' );
if ( ! add_option( 'wpua_admin_only', '', '', 'no' ) ) update_option( 'wpua_admin_only', '' );
if ( ! add_option( 'wpua_output_location', '', '', 'no' ) ) update_option( 'wpua_output_location', '' );
}
/**
* Load plugin textdomain: wp-useragent
*/
add_action( 'plugins_loaded', 'wpua_load_textdomain' );
function wpua_load_textdomain()
{
load_plugin_textdomain( 'wp-useragent', false, plugin_basename( dirname( __FILE__ ) ) . '/languages' );
}
?>