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Password Plugin for Roundcube
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Plugin that adds a possibility to change user password using many
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methods (drivers) via Settings/Password tab.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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@version 1.2
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@author Aleksander 'A.L.E.C' Machniak <alec@alec.pl>
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@author <see driver files for driver authors>
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1. Configuration
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2. Drivers
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2.1. Database (sql)
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2.2. Cyrus/SASL (sasl)
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2.3. Poppassd/Courierpassd (poppassd)
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2.4. LDAP (ldap)
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3. Driver API
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1. Configuration
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----------------
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* See config.inc.php file.
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2. Drivers
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----------
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Password plugin supports many password change mechanisms which are
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handled by included drivers. Just pass driver name in 'password_driver' option.
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2.1. Database (sql)
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-------------------
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You can specify which database to connect by 'password_db_dsn' option and
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what SQL query to execute by 'password_query'. See main.inc.php file for
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more info.
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Example implementations of an update_passwd function:
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- This is for use with LMS (http://lms.org.pl) database and postgres:
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CREATE OR REPLACE FUNCTION update_passwd(hash text, account text) RETURNS integer AS $$
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DECLARE
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res integer;
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BEGIN
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UPDATE passwd SET password = hash
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WHERE login = split_part(account, '@', 1)
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AND domainid = (SELECT id FROM domains WHERE name = split_part(account, '@', 2))
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RETURNING id INTO res;
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RETURN res;
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END;
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$$ LANGUAGE plpgsql SECURITY DEFINER;
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- This is for use with a SELECT update_passwd(%o,%c,%u) query
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Updates the password only when the old password matches the MD5 password
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in the database
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CREATE FUNCTION update_password (oldpass text, cryptpass text, user text) RETURNS text
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MODIFIES SQL DATA
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BEGIN
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DECLARE currentsalt varchar(20);
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DECLARE error text;
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SET error = 'incorrect current password';
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SELECT substring_index(substr(user.password,4),_latin1'$',1) INTO currentsalt FROM users WHERE username=user;
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SELECT '' INTO error FROM users WHERE username=user AND password=ENCRYPT(oldpass,currentsalt);
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UPDATE users SET password=cryptpass WHERE username=user AND password=ENCRYPT(oldpass,currentsalt);
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RETURN error;
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END
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Example SQL UPDATEs:
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- Plain text passwords:
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UPDATE users SET password=%p WHERE username=%u AND password=%o AND domain=%h LIMIT 1
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- Crypt text passwords:
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UPDATE users SET password=%c WHERE username=%u LIMIT 1
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- Use a MYSQL crypt function (*nix only) with random 8 character salt
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UPDATE users SET password=ENCRYPT(%p,concat(_utf8'$1$',right(md5(rand()),8),_utf8'$')) WHERE username=%u LIMIT 1
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- MD5 stored passwords:
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UPDATE users SET password=MD5(%p) WHERE username=%u AND password=MD5(%o) LIMIT 1
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2.2. Cyrus/SASL (sasl)
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----------------------
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Cyrus SASL database authentication allows your Cyrus+RoundCube
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installation to host mail users without requiring a Unix Shell account!
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This driver only covers the "sasldb" case when using Cyrus SASL. Kerberos
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and PAM authentication mechanisms will require other techniques to enable
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user password manipulations.
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Cyrus SASL includes a shell utility called "saslpasswd" for manipulating
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user passwords in the "sasldb" database. This plugin attempts to use
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this utility to perform password manipulations required by your webmail
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users without any administrative interaction. Unfortunately, this
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scheme requires that the "saslpasswd" utility be run as the "cyrus"
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user - kind of a security problem since we have chosen to SUID a small
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script which will allow this to happen.
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This driver is based on the Squirrelmail Change SASL Password Plugin.
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See http://www.squirrelmail.org/plugin_view.php?id=107 for details.
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Installation:
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Edit the chgsaslpasswd.c and chgsaslpasswd.sh files as is documented
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within them.
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Compile the wrapper program:
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gcc -o chgsaslpasswd chgsaslpasswd.c
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Chown the chgsaslpasswd and chgsaslpasswd.sh to the cyrus user and group
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that your browser runs as, then chmod them to 4550.
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For example, if your cyrus user is 'cyrus' and the apache server group is
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'nobody' (I've been told Redhat runs Apache as user 'apache'):
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chown cyrus:nobody chgsaslpasswd
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chmod 4550 chgsaslpasswd
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Stephen Carr has suggested users should try to run the scripts on a test
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account as the cyrus user eg;
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su cyrus -c "./chgsaslpasswd -p test_account"
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This will allow you to make sure that the script will work for your setup.
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Should the script not work, make sure that:
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1) the user the script runs as has access to the saslpasswd|saslpasswd2
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file and proper permissions
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2) make sure the user in the chgsaslpasswd.c file is set correctly.
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This could save you some headaches if you are the paranoid type.
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2.3. Poppassd/Courierpassd (poppassd)
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-------------------------------------
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You can specify which host to connect to via `password_pop_host` and
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what port via `password_pop_port`. See config.inc.php file for more info.
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2.4. LDAP (ldap)
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----------------
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See config.inc.php file. Requires PEAR::Net_LDAP2 package.
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3. Driver API
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-------------
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Driver file (<driver_name>.php) must define 'password_save' function with
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two arguments. First - current password, second - new password. Function
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may return PASSWORD_SUCCESS on success or any of PASSWORD_CONNECT_ERROR,
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PASSWORD_CRYPT_ERROR, PASSWORD_ERROR when driver was unable to change password.
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See existing drivers in drivers/ directory for examples.
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