diff options
Diffstat (limited to 'user_guide_src/source/libraries')
| -rw-r--r-- | user_guide_src/source/libraries/language.rst | 7 | ||||
| -rw-r--r-- | user_guide_src/source/libraries/security.rst | 45 |
2 files changed, 42 insertions, 10 deletions
diff --git a/user_guide_src/source/libraries/language.rst b/user_guide_src/source/libraries/language.rst index ec678cd21..b231f14a3 100644 --- a/user_guide_src/source/libraries/language.rst +++ b/user_guide_src/source/libraries/language.rst @@ -54,7 +54,9 @@ first. Loading a language file is done with the following code:: Where filename is the name of the file you wish to load (without the file extension), and language is the language set containing it (ie, english). If the second parameter is missing, the default language set -in your application/config/config.php file will be used. +in your *application/config/config.php* file will be used. + +.. note:: The *language* parameter can only consist of letters. Fetching a Line of Text ======================= @@ -67,8 +69,7 @@ text using this function:: Where language_key is the array key corresponding to the line you wish to show. -Note: This function simply returns the line. It does not echo it for -you. +.. note:: This method simply returns the line. It does not echo it. Using language lines as form labels ----------------------------------- diff --git a/user_guide_src/source/libraries/security.rst b/user_guide_src/source/libraries/security.rst index e7d25555f..05553142f 100644 --- a/user_guide_src/source/libraries/security.rst +++ b/user_guide_src/source/libraries/security.rst @@ -26,7 +26,7 @@ processing since it requires a fair amount of processing overhead. To filter data through the XSS filter use this function: $this->security->xss_clean() -============================= +============================ Here is an usage example:: @@ -56,7 +56,7 @@ browser may attempt to execute. } $this->security->sanitize_filename() -===================================== +==================================== When accepting filenames from user input, it is best to sanitize them to prevent directory traversal and other security related issues. To do so, @@ -76,16 +76,35 @@ parameter, $relative_path to TRUE. Cross-site request forgery (CSRF) ================================= -You can enable csrf protection by opening your +You can enable CSRF protection by opening your application/config/config.php file and setting this:: $config['csrf_protection'] = TRUE; -If you use the :doc:`form helper <../helpers/form_helper>` the -form_open() function will automatically insert a hidden csrf field in -your forms. +If you use the :doc:`form helper <../helpers/form_helper>`, then +``form_open()`` will automatically insert a hidden csrf field in +your forms. If not, then you can use ``csrf_get_token_name()`` +and ``csrf_get_hash()`` -Tokens may be either regenerated on every submission (default) or kept the same throughout the life of the CSRF cookie. The default regeneration of tokens provides stricter security but may result in usability concerns as other tokens become invalid (back/forward navigation, multiple tabs/windows, asynchronous actions, etc). You may alter this behavior by editing the following config parameter:: +:: + + $csrf = array( + 'name' => $this->security->csrf_get_token_name(), + 'hash' => $this->security->csrf_get_hash() + ); + + ... + + <input type="hidden" name="<?=$csrf['name'];?>" value="<?=$csrf['hash'];?>" /> + +Tokens may be either regenerated on every submission (default) or +kept the same throughout the life of the CSRF cookie. The default +regeneration of tokens provides stricter security, but may result +in usability concerns as other tokens become invalid (back/forward +navigation, multiple tabs/windows, asynchronous actions, etc). You +may alter this behavior by editing the following config parameter + +:: $config['csrf_regeneration'] = TRUE; @@ -95,3 +114,15 @@ by editing the 'csrf_exclude_uris' config parameter:: $config['csrf_exclude_uris'] = array('api/person/add'); +$this->security->get_csrf_token_name() +====================================== + +Returns the CSRF token name, which is set by +``$config['csrf_token_name']``. + +$this->security->get_csrf_hash() +================================ + +Returns the CSRF hash value. Useful in combination with +``get_csrf_token_name()`` for manually building forms or +sending valid AJAX POST requests.
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