From df4c6af956dd064f6ed2a82a89b7ff5931a5c8af Mon Sep 17 00:00:00 2001 From: Christian Weiske Date: Thu, 26 May 2011 21:37:20 +0200 Subject: rename auth docs --- doc/authentication.rst | 213 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 213 insertions(+) create mode 100644 doc/authentication.rst (limited to 'doc/authentication.rst') diff --git a/doc/authentication.rst b/doc/authentication.rst new file mode 100644 index 0000000..c3ccb47 --- /dev/null +++ b/doc/authentication.rst @@ -0,0 +1,213 @@ +============================================ +External authentication with SemanticScuttle +============================================ + +Most times, one piece of software is only a part in the big puzzle +that makes the software landscape of a company or organization. +SemanticScuttle is not different and should integrate as nicely as +possible with all other systems. + +One of the basic tasks of integration is user authentication against +a central database - be it a central user database, an LDAP or a +active directory server. + +Since version 0.96, SemanticScuttle supports user authentication against +external systems. To provide a wide range of supported systems, we chose +to utilize PEAR's `Authentication package`__. +It does this by providing different "`authentication containers`__", +for example Database, IMAP, LDAP, POP3, RADIUS, SAP and SOAP. + +Please be aware of the fact that, after successful authentication, the user +and his scrambled password are stored in the SemanticScuttle database. +This is required for proper functioning of the software. It does not mean +that you will be able to login if your external authentication provider +is offline - you won't, execpt you switch it off in the SemanticScuttle +configuration. + + +__ http://pear.php.net/package/Auth +__ http://pear.php.net/manual/en/package.authentication.auth.intro-storage.php + + +Basic configuration +=================== +The default configuration file ``data/config.default.php`` has an own section +on auth options and an explanation of the single entries. + +To utilize the external authentication, you need to install the +PEAR Auth package: :: + + $ pear install auth + +If you do not have a PEAR installation available, you can try to manually +install the files in the src/ directory. If you choose to do that, the +src/ directory should look similar to that: :: + + src/ + Auth.php + Auth/ + Anonymous.php + Container.php + Container/ + .. + SemanticScuttle/ + header.php + .. + +After that, modify your ``data/config.php`` file. The most important change +is to use :: + + $serviceoverrides['User'] = 'SemanticScuttle_Service_AuthUser'; + +which tells SemanticScuttle to switch to the special authentication service. + +Now that's done, you can configure the single auth options: + +``$authType = 'MDB2';`` + selects the authentication container. + +``$authOptions`` + is an array of options specific to the authentication container. Please + consult the PEAR Auth documentation for more information. + +``$authDebug = true;`` + should be used when setup fails, since it may give important hints + where it fails. + + Please note that login will seem to fail with + debugging activated. Going back to the main page after that will + show that you are logged in. + + + +Authentication examples +======================= + +General database authentification +--------------------------------- +Here you also need the PEAR `MDB2 package`_. +The "``new_link``" option is important! + +``config.php`` settings: :: + + $serviceoverrides['User'] = 'SemanticScuttle_Service_AuthUser'; + $authType = 'MDB2'; + $authOptions = array( + 'dsn' => array( + 'phptype' => 'mysql', + 'hostspec' => 'FIXME', + 'username' => 'FIXME', + 'password' => 'FIXME', + 'database' => 'FIXME', + 'new_link' => true, + ), + 'table' => 'usersFIXME', + 'usernamecol' => 'usernameFIXME', + 'passwordcol' => 'passwordFIXME', + 'cryptType' => 'md5', + ); + + +Mantis Bugtracker +----------------- +Here you also need the PEAR `MDB2 package`_. + +``config.php`` settings: :: + + $serviceoverrides['User'] = 'SemanticScuttle_Service_AuthUser'; + $authType = 'MDB2'; + $authOptions = array( + 'dsn' => array( + 'phptype' => 'mysql', + 'hostspec' => 'FIXME', + 'username' => 'FIXME', + 'password' => 'FIXME', + 'database' => 'FIXME', + 'new_link' => true, + ), + 'table' => 'mantis_user_table', + 'usernamecol' => 'username', + 'passwordcol' => 'password', + 'cryptType' => 'md5', + ); + +.. _MDB2 package: http://pear.php.net/package/MDB2 + + +MediaWiki +--------- +Unfortunately, the password column does not contain a simple hashed +password - for good reasons as described on +http://www.mediawiki.org/wiki/Manual_talk:User_table#user_password_column + +If you configure your MediaWiki_ to use passwords without salt, you +can make it work nevertheless: + +MediaWiki ``LocalSettings.php``: :: + + $wgPasswordSalt = false; + +\- after that, users need to change/update their passwords to get them +unsalted in the database. You can verify if the passwords are unhashed +if you do :: + + SELECT CAST( user_password AS CHAR ) FROM user + +on your MediaWiki database. Passwords prefixed with "``:A:``" can be used. + +Another problem is that mediawiki user names begin with an uppercase letter. +You need to modify ``www/login.php`` and remove the "``utf8_strtolower``" function +call: :: + + $posteduser = trim(utf8_strtolower(POST_USERNAME)); + +becomes :: + + $posteduser = trim(POST_USERNAME); + + +``config.php`` settings: :: + + $serviceoverrides['User'] = 'SemanticScuttle_Service_AuthUser'; + $authType = 'MDB2'; + $authOptions = array( + 'dsn' => array( + 'phptype' => 'mysql', + 'hostspec' => 'FIXME', + 'username' => 'FIXME', + 'password' => 'FIXME', + 'database' => 'FIXME', + 'new_link' => true, + ), + 'table' => 'user', + 'usernamecol' => 'user_name', + 'passwordcol' => 'user_password', + 'cryptType' => 'md5_mediawiki', + ); + function md5_mediawiki($password) { + return ':A:' . md5($password); + } + + +.. _MediaWiki: http://www.mediawiki.org/wiki/MediaWiki + +Active Directory / LDAP +----------------------- +Here we authenticate against an active directory server. + +``config.php`` settings: :: + + $serviceoverrides['User'] = 'SemanticScuttle_Service_AuthUser'; + $authType = 'LDAP'; + $authOptions = array( + 'host' => '192.168.1.4', + 'version' => 3, + 'basedn' => 'DC=EXAMPLE,DC=ORG', + 'binddn' => 'readuser', + 'bindpw' => 'readuser', + 'userattr' => 'sAMAccountName', + 'userfilter' => '(objectClass=user)', + 'attributes' => array(''), + ); + $authEmailSuffix = '@example.org'; + -- cgit v1.2.3-54-g00ecf