From 27e91a07ed66308ba02833b104ca8ca6a05e7be8 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@devilix.net>
Date: Thu, 9 Jan 2014 01:00:48 +0200
Subject: Add CI_User_agent::parse() to allow parsing a custom user-agent
 string

Based on PR #970
---
 system/libraries/User_agent.php     | 28 ++++++++++++++++++++++++++++
 user_guide_src/source/changelog.rst |  6 +++++-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index e13bf8513..3a6b6bc98 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -634,6 +634,34 @@ class CI_User_agent {
 		return in_array(strtolower($charset), $this->charsets(), TRUE);
 	}
 
+	// --------------------------------------------------------------------
+
+	/**
+	 * Parse a custom user-agent string
+	 *
+	 * @param	string	$string
+	 * @return	void
+	 */
+	public function parse($string)
+	{
+		// Reset values
+		$this->is_browser = FALSE;
+		$this->is_robot = FALSE;
+		$this->is_mobile = FALSE;
+		$this->browser = '';
+		$this->version = '';
+		$this->mobile = '';
+		$this->robot = '';
+
+		// Set the new user-agent string and parse it, unless empty
+		$this->agent = $string;
+
+		if ( ! empty($string))
+		{
+			$this->_compile_data();
+		}
+	}
+
 }
 
 /* End of file User_agent.php */
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 67a2685da..cbc1c6656 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -369,7 +369,11 @@ Release Date: Not Released
       -  Added the ability to use a proxy.
       -  Added Basic HTTP authentication support.
 
-   -  :doc:`User Agent Library <libraries/user_agent>` will now check if robots are pretending to be mobile clients (helps with e.g. Google indexing mobile website versions).
+   -  :doc:`User Agent Library <libraries/user_agent>` changes include:
+
+      - Added check to detect if robots are pretending to be mobile clients (helps with e.g. Google indexing mobile website versions).
+      - Added method ``parse()`` to allow parsing a custom user-agent string, different from the current visitor's.
+
    -  Added support for setting :doc:`Table <libraries/table>` class defaults in a config file.
    -  :doc:`Zip Library <libraries/zip>` method ``read_file()`` can now also alter the original file path/name while adding files to an archive.
 
-- 
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