diff options
author | Phil Sturgeon <email@philsturgeon.co.uk> | 2011-05-08 17:23:36 +0200 |
---|---|---|
committer | Phil Sturgeon <email@philsturgeon.co.uk> | 2011-05-08 17:23:36 +0200 |
commit | 0854d91fd2848266ec37a37c8a1ccfd13a8a4eda (patch) | |
tree | 1433f1db86920fae6e6286c6cc517ba64cda2aba /user_guide/libraries/security.html | |
parent | 0cb8c59f91567af9aa6530f8764abafe1ae935c0 (diff) | |
parent | 3ef65bd7491f847fecdab1acc9687f0e90eee09b (diff) |
Merged tip.
Diffstat (limited to 'user_guide/libraries/security.html')
-rw-r--r-- | user_guide/libraries/security.html | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/user_guide/libraries/security.html b/user_guide/libraries/security.html index 6fbdf7744..0cb1d0cb1 100644 --- a/user_guide/libraries/security.html +++ b/user_guide/libraries/security.html @@ -28,7 +28,7 @@ <div id="masthead"> <table cellpadding="0" cellspacing="0" border="0" style="width:100%"> <tr> -<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td> +<td><h1>CodeIgniter User Guide Version 2.0.2</h1></td> <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> </tr> </table> @@ -63,11 +63,11 @@ Security Class <h2>XSS Filtering</h2> <p>CodeIgniter comes with a Cross Site Scripting Hack prevention filter which can either run automatically to filter -all POST and COOKIE data that is encountered, or you can run it on a per item basis. By default it does <strong>not</strong> +all POST and COOKIE data that is encountered, or you can run it on a per item basis. By default it does <strong>not</strong> run globally since it requires a bit of processing overhead, and since you may not need it in all cases.</p> <p>The XSS filter looks for commonly used techniques to trigger Javascript or other types of code that attempt to hijack cookies -or do other malicious things. If anything disallowed is encountered it is rendered safe by converting the data to character entities.</p> +or do other malicious things. If anything disallowed is encountered it is rendered safe by converting the data to character entities.</p> <p> Note: This function should only be used to deal with data upon submission. It's not something that should be used for general runtime processing since it requires a fair amount of processing overhead.</p> @@ -88,7 +88,7 @@ Note: This function should only be used to deal with data upon submission. It's <p>Note: If you use the form validation class, it gives you the option of XSS filtering as well.</p> -<p>An optional second parameter, <dfn>is_image</dfn>, allows this function to be used to test images for potential XSS attacks, useful for file upload security. When this second parameter is set to <dfn>TRUE</dfn>, instead of returning an altered string, the function returns TRUE if the image is safe, and FALSE if it contained potentially malicious information that a browser may attempt to execute.</p> +<p>An optional second parameter, <dfn>is_image</dfn>, allows this function to be used to test images for potential XSS attacks, useful for file upload security. When this second parameter is set to <dfn>TRUE</dfn>, instead of returning an altered string, the function returns TRUE if the image is safe, and FALSE if it contained potentially malicious information that a browser may attempt to execute.</p> <code>if ($this->security->xss_clean($file, TRUE) === FALSE)<br /> {<br /> @@ -98,7 +98,7 @@ Note: This function should only be used to deal with data upon submission. It's <h2>$this->security->sanitize_filename()</h2> -<p>When accepting filenames from user input, it is best to sanitize them to prevent directory traversal and other security related issues. To do so, use the <dfn>sanitize_filename()</dfn> method of the Security class. Here is an example:</p> +<p>When accepting filenames from user input, it is best to sanitize them to prevent directory traversal and other security related issues. To do so, use the <dfn>sanitize_filename()</dfn> method of the Security class. Here is an example:</p> <code>$filename = $this->security->sanitize_filename($this->input->post('filename'));</code> |