diff options
| author | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
|---|---|---|
| committer | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
| commit | f4fb1db458fab52d0493ead52c9ea7e01206eaa7 (patch) | |
| tree | c549600f342f4d3f0df75a2f2f7c265be0f1cc72 /user_guide/general/security.html | |
| parent | c4dd200c1155a118afa32cd91d9bd67bc243f83a (diff) | |
Moved tutorial to new user guide directory.
Diffstat (limited to 'user_guide/general/security.html')
| -rw-r--r-- | user_guide/general/security.html | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/user_guide/general/security.html b/user_guide/general/security.html deleted file mode 100644 index 5685bfa89..000000000 --- a/user_guide/general/security.html +++ /dev/null @@ -1,164 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> - -<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> -<title>Security : CodeIgniter User Guide</title> - -<style type='text/css' media='all'>@import url('../userguide.css');</style> -<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /> - -<script type="text/javascript" src="../nav/nav.js"></script> -<script type="text/javascript" src="../nav/prototype.lite.js"></script> -<script type="text/javascript" src="../nav/moo.fx.js"></script> -<script type="text/javascript" src="../nav/user_guide_menu.js"></script> - -<meta http-equiv='expires' content='-1' /> -<meta http-equiv= 'pragma' content='no-cache' /> -<meta name='robots' content='all' /> -<meta name='author' content='ExpressionEngine Dev Team' /> -<meta name='description' content='CodeIgniter User Guide' /> - -</head> -<body> - -<!-- START NAVIGATION --> -<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div> -<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div> -<div id="masthead"> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td><h1>CodeIgniter User Guide Version 2.0.3</h1></td> -<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> -</tr> -</table> -</div> -<!-- END NAVIGATION --> - - -<!-- START BREADCRUMB --> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td id="breadcrumb"> -<a href="http://codeigniter.com/">CodeIgniter Home</a> › -<a href="../index.html">User Guide Home</a> › -Security -</td> -<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> -</tr> -</table> -<!-- END BREADCRUMB --> - -<br clear="all" /> - - -<!-- START CONTENT --> -<div id="content"> - -<h1>Security</h1> - -<p>This page describes some "best practices" regarding web security, and details -CodeIgniter's internal security features.</p> - - -<h2>URI Security</h2> - -<p>CodeIgniter is fairly restrictive regarding which characters it allows in your URI strings in order to help -minimize the possibility that malicious data can be passed to your application. URIs may only contain the following: -</p> - -<ul> -<li>Alpha-numeric text</li> -<li>Tilde: ~ </li> -<li>Period: .</li> -<li>Colon: :</li> -<li>Underscore: _</li> -<li>Dash: -</li> -</ul> - -<h2>Register_globals</h2> - -<p>During system initialization all global variables are unset, except those found in the $_GET, $_POST, and $_COOKIE arrays. The unsetting -routine is effectively the same as register_globals = off.</p> - -<a name="error_reporting"></a> -<h2>error_reporting</h2> - -<p> - In production environments, it is typically desirable to disable PHP's - error reporting by setting the internal error_reporting flag to a value of 0. This disables native PHP - errors from being rendered as output, which may potentially contain - sensitive information. -</p> - -<p> - Setting CodeIgniter's <kbd>ENVIRONMENT</kbd> constant in index.php to a - value of '<kbd>production</kbd>' will turn off these errors. In development - mode, it is recommended that a value of '<kbd>development</kbd>' is used. - More information about differentiating between environments can be found - on the <a href="environments.html">Handling Environments</a> page. -</p> - -<h2>magic_quotes_runtime</h2> - -<p>The magic_quotes_runtime directive is turned off during system initialization so that you don't have to remove slashes when -retrieving data from your database.</p> - -<h1>Best Practices</h1> - -<p>Before accepting any data into your application, whether it be POST data from a form submission, COOKIE data, URI data, -XML-RPC data, or even data from the SERVER array, you are encouraged to practice this three step approach:</p> - -<ol> -<li>Filter the data as if it were tainted.</li> -<li>Validate the data to ensure it conforms to the correct type, length, size, etc. (sometimes this step can replace step one)</li> -<li>Escape the data before submitting it into your database.</li> -</ol> - -<p>CodeIgniter provides the following functions to assist in this process:</p> - -<ul> - -<li><h2>XSS Filtering</h2> - -<p>CodeIgniter comes with a Cross Site Scripting filter. This filter looks for commonly -used techniques to embed malicious Javascript into your data, or other types of code that attempt to hijack cookies -or do other malicious things. The XSS Filter is described <a href="../libraries/security.html">here</a>. -</p> -</li> - -<li><h2>Validate the data</h2> - -<p>CodeIgniter has a <a href="../libraries/form_validation.html">Form Validation Class</a> that assists you in validating, filtering, and prepping -your data.</p> -</li> - -<li><h2>Escape all data before database insertion</h2> - -<p>Never insert information into your database without escaping it. Please see the section that discusses -<a href="../database/queries.html">queries</a> for more information.</p> - -</li> - -</ul> - - - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="alternative_php.html">Alternative PHP</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="styleguide.html">PHP Style Guide</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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