Extension:OAuth

Not to be confused with Extension:OATHAuth.

MediaWiki extensions manual

OAuth Release status: stable
Implementation	User identity , User rights , API
Description	Allow users to safely authorize another application ("consumer") to use the MediaWiki action API on their behalf.
Compatibility policy	release branches
Database changes	Yes
Tables	oauth_accepted_consumer oauth_registered_consumer
License	GNU General Public License 2.0 or later
Download	Download extension Git [?]: Download Git master browse repository (GitHub) commit history code review
Parameters $wgMWOAuthCentralWiki $wgMWOAuthSharedUserSource $wgMWOAuthRequestExpirationAge $wgMWOAuthSecureTokenTransfer $wgOAuthSecretKey $wgOAuthGroupsToNotify
Added rights mwoauthproposeconsumer mwoauthupdateownconsumer mwoauthmanageconsumer mwoauthsuppress mwoauthviewsuppressed mwoauthviewprivate mwoauthmanagemygrants
Translate the OAuth extension if it is available at translatewiki.net
Check usage and version matrix.
Vagrant role	oauth
Issues	Open tasks · Report a bug

The OAuth extension implements an OAuth 1.0a server in MediaWiki. It allows third party developers to securely develop applications ("consumers"), to which users can give a limited set of permissions ("grants"), so that the application can use the MediaWiki action API on the user's behalf.

 Note: If you're attempting to develop an application that uses OAuth on a wiki, see OAuth for Developers. If you are trying to use an OAuth-enabled tool on a wiki which has this extension installed, see Help:OAuth.

Requirements

• OAuth relies on the object cache for temporary tokens and sessions. This should work as long as cache configuration settings are sane. (Older versions required Memcached explicitly.)
• Currently, only mysql and sqlite database backends are supported
• If the mediawiki installation is private (i.e. users need to log in to have read access), Special:OAuth will need to be added to the white list.

Installation

• Download and place the file(s) in a directory called OAuth in your extensions/ folder.
• Only when installing from git run Composer to install PHP dependencies, by issuing composer install --no-dev in the extension directory. (See T173141 for potential complications.)
• Add the following code at the bottom of your LocalSettings.php:

  wfLoadExtension( 'OAuth' );
  

• Run the update script which will automatically create the necessary database tables that this extension needs.
• Configure the general parameters as required.
• Configure the user rights by putting them into the relevant groups in $wgGroupPermissions.
•  Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.

To users running MediaWiki 1.24 or earlier:

The instructions above describe the new way of installing this extension using wfLoadExtension(). If you need to install this extension on these earlier versions (MediaWiki 1.24 and earlier), instead of wfLoadExtension( 'OAuth' );, you need to use:

require_once "$IP/extensions/OAuth/OAuth.php";

User rights

Right	Description
mwoauthproposeconsumer	User can propose a new Consumer
mwoauthupdateownconsumer	Modify a Consumer
mwoauthmanageconsumer	Approve a Consumer
mwoauthsuppress	Hide details about a Consumer
mwoauthviewsuppressed	View hidden details about a Consumer
mwoauthviewprivate	View private details about a Consumer, such as the hmac secret
mwoauthmanagemygrants	Right for users to manage what rights they have authorized for each Consumer. Typically, this right will not be granted to an OAuth Consumer.

To assign a permission to some group, for example to sysops, you add following line to LocalSettings.php:

$wgGroupPermissions['sysop']['mwoauthproposeconsumer'] = true;

Configuration

Variable name	Default value	Description
$wgMWOAuthCentralWiki	false	Wiki ID of the wiki where OAuth grants are stored and Consumers registered, if OAuth credentials are shared over a wiki farm
$wgMWOAuthSharedUserIDs	false	deprecated, use $wgMWOAuthSharedUserSource instead
$wgMWOAuthSharedUserSource	null	Central ID provider when sharing OAuth credentials over a wiki farm
$wgMWOAuthRequestExpirationAge	2592000 (30 days)	Seconds after which an idle request for a new Consumer is marked as "expired"
$wgMWOAuthSecureTokenTransfer	false	Require SSL/TLS for returning Consumer and user secrets. This is required by RFC 5849, however if a wiki wants to use OAuth, but doesn't support SSL, this option makes this configuration possible. This should be set to true for most production settings.
$wgOAuthSecretKey	$wgSecretKey	A secret configuration string used to hmac the database-stored secret to produce the shared secrets for Consumers. This provides some protection against an attacker reading the values out of the consumer table (the attacker would also need $wgOAuthSecretKey to generate valid secrets), and some protection against potential weaknesses in the secret generation. If this string is compromised, the site should generate a new $wgOAuthSecretKey, which will invalidate Consumer authorizations that use HMAC/shared secret signatures instead of public/private keys. Consumers can regenerate their new shared secret by using the "Reset the secret key to a new value" option under Special:MWOAuthConsumerRegistration/update.
$wgOAuthGroupsToNotify	[]	The list of user groups which should be notified about new consumer proposals. Setting this will only have an effect when Echo is installed.

If OAuth credentials are shared over a wiki farm, make sure that real names are used/hidden consistently across all wikis (using $wgHiddenPrefs ). On wikis where real names are hidden, the OAuth permission request message that tells the user which information is shared does not mention the real name, so in that case there should not be any other wiki where the OAuth consumer may still get that information from.

See also

• Extension:OAuthAuthentication – A MediaWiki extension that lets your wiki delegate authentication to another wiki that is running Extension:OAuth.
• Extension:OATHAuth - A similarly named extension which implements a second authentication factor using OATH-based one-time passwords.
• oauthclient-php – a client library for OAuth consumers.