From cc96692eb8f101e1257c58e77bcf92c3d9e60898 Mon Sep 17 00:00:00 2001
From: Aleksei Miheev <aleksei@miheev.info>
Date: Sun, 12 Feb 2012 17:23:52 +0400
Subject: [PATCH] add basic mobile user detection

---
 Mobile_Detect.php | 92 +++++++++++++++++++++++++++++++++++++++++++++++
 index.php         |  4 +++
 2 files changed, 96 insertions(+)
 create mode 100644 Mobile_Detect.php

diff --git a/Mobile_Detect.php b/Mobile_Detect.php
new file mode 100644
index 0000000..439ed09
--- /dev/null
+++ b/Mobile_Detect.php
@@ -0,0 +1,92 @@
+<?php
+
+/**
+ * Mobile Detect
+ * @license    http://www.opensource.org/licenses/mit-license.php The MIT License
+ */
+class Mobile_Detect
+{
+
+	protected $accept;
+	protected $userAgent;
+	protected $isMobile = false;
+	protected $isAndroid = null;
+	protected $isAndroidtablet = null;
+	protected $isIphone = null;
+	protected $isIpad = null;
+	protected $isBlackberry = null;
+	protected $isBlackberrytablet = null;
+	protected $isOpera = null;
+	protected $isPalm = null;
+	protected $isWindows = null;
+	protected $isWindowsphone = null;
+	protected $isGeneric = null;
+	protected $devices = array(
+		"android" => "android.*mobile",
+		"androidtablet" => "android(?!.*mobile)",
+		"blackberry" => "blackberry",
+		"blackberrytablet" => "rim tablet os",
+		"iphone" => "(iphone|ipod)",
+		"ipad" => "(ipad)",
+		"palm" => "(avantgo|blazer|elaine|hiptop|palm|plucker|xiino)",
+		"windows" => "windows ce; (iemobile|ppc|smartphone)",
+		"windowsphone" => "windows phone os",
+		"generic" => "(kindle|mobile|mmp|midp|pocket|psp|symbian|smartphone|treo|up.browser|up.link|vodafone|wap|opera mini)"
+	);
+
+	public function __construct()
+	{
+		$this->userAgent = $_SERVER['HTTP_USER_AGENT'];
+		$this->accept = $_SERVER['HTTP_ACCEPT'];
+
+		if (isset($_SERVER['HTTP_X_WAP_PROFILE']) || isset($_SERVER['HTTP_PROFILE'])) {
+			$this->isMobile = true;
+		} elseif (strpos($this->accept, 'text/vnd.wap.wml') > 0 || strpos($this->accept, 'application/vnd.wap.xhtml+xml') > 0) {
+			$this->isMobile = true;
+		} else {
+			foreach ($this->devices as $device => $regexp) {
+				if ($this->isDevice($device)) {
+					$this->isMobile = true;
+				}
+			}
+		}
+	}
+
+	/**
+	 * Overloads isAndroid() | isAndroidtablet() | isIphone() | isIpad() | isBlackberry() | isBlackberrytablet() | isPalm() | isWindowsphone() | isWindows() | isGeneric() through isDevice()
+	 *
+	 * @param string $name
+	 * @param array $arguments
+	 * @return bool
+	 */
+	public function __call($name, $arguments)
+	{
+		$device = substr($name, 2);
+		if ($name == "is" . ucfirst($device) && array_key_exists(strtolower($device), $this->devices)) {
+			return $this->isDevice($device);
+		} else {
+			trigger_error("Method $name not defined", E_USER_WARNING);
+		}
+	}
+
+	/**
+	 * Returns true if any type of mobile device detected, including special ones
+	 * @return bool
+	 */
+	public function isMobile()
+	{
+		return $this->isMobile;
+	}
+
+	protected function isDevice($device)
+	{
+		$var = "is" . ucfirst($device);
+		$return = $this->$var === null ? (bool) preg_match("/" . $this->devices[strtolower($device)] . "/i", $this->userAgent) : $this->$var;
+		if ($device != 'generic' && $return == true) {
+			$this->isGeneric = false;
+		}
+
+		return $return;
+	}
+
+}
diff --git a/index.php b/index.php
index 9e0ca15..a805de2 100644
--- a/index.php
+++ b/index.php
@@ -82,6 +82,10 @@ reloadSettings();
 cleanRequest();
 $context = array();
 
+include("Mobile_Detect.php");
+$detect = new Mobile_Detect();
+define('MOBILE', $detect->isMobile());
+
 // Determine if this is should be using WAP, WAP2, or imode.
 define('WIRELESS', isset($_REQUEST['wap']) || isset($_REQUEST['wap2']) || isset($_REQUEST['imode']));