// "name" => "Netcenter Member Directory",
// "base" => "ou=member_directory,o=netcenter.com");
+// Database-driven private addressbooks
+//
+// DSN (Data Source Name) for a database where the private
+// addressbooks are stored. See doc/db-backend.txt for more info.
+// If it is not defined, the addressbooks are stored in files
+// in the data dir.
+//
+// $addrbook_dsn = 'mysql://user:pass@hostname/dbname';
// you have an option to chose between javascript or html version of
--- /dev/null
+$Id$
+
+
+Storing private addressbooks and preferences in a database
+==========================================================
+
+
+On sites with many users you might want to store your user data in a
+database instead of in files. This document describe how to configure
+SquirrelMail to do this.
+
+Methods for storing both personal addressbooks and user preferences in
+a database is as a part of the distribution.
+
+
+
+Configuring PEAR DB
+-------------------
+
+To work you must install the PEAR classes that is a part of PHP. Make
+sure the directory where the PEAR files are located is a part of your
+include path. See the PHP documentation for info on how to do that.
+
+
+
+Configuring addressbooks in database
+------------------------------------
+
+First you need to create a database and a table to store the data in.
+Create a database user with access to read and write in that table.
+
+For MySQL you would normally do something like:
+
+ (from the command line)
+ # mysqladmin create squirrelmail
+
+ (from the mysql client)
+ mysql> GRANT select,insert,update,delete ON squirrelmail.*
+ TO squrreluser@localhost IDENTIFIED BY 'sqpassword';
+
+The table structure should be similar to this (for MySQL):
+
+ CREATE TABLE address (
+ owner varchar(16) DEFAULT '' NOT NULL,
+ nickname varchar(16) DEFAULT '' NOT NULL,
+ firstname varchar(128) DEFAULT '' NOT NULL,
+ lastname varchar(128) DEFAULT '' NOT NULL,
+ email varchar(128) DEFAULT '' NOT NULL,
+ label varchar(255),
+ PRIMARY KEY (owner,nickname),
+ KEY firstname (firstname,lastname)
+ );
+
+
+Next, edit config/config.php and add a DSN (Data Source Name) for the
+database. It should look something like:
+
+ $addrbook_dsn = 'mysql://squirreluser:sqpassword@localhost/squirrelmail';
+
+From now on all users' personal addressbooks will be stored in a
+database.
+
+
+
+Configuring preferences in database
+-----------------------------------
+
+There is no easy way to do this yet. You will have to remove
+functions/prefs.php and replace it with functions/db_prefs.php. Then
+edit the new functions/prefs.php (db_prefs.php) and change the $DSN to
+point to a database you create (can be the same you use for
+addressbooks). Create a table similar to this (for MySQL):
+
+ CREATE TABLE userprefs (
+ user varchar(32) DEFAULT '' NOT NULL,
+ prefkey varchar(64) DEFAULT '' NOT NULL,
+ prefval blob DEFAULT '' NOT NULL,
+ PRIMARY KEY (user,prefkey)
+ );
+
+
+Default preferences can be set by altering the $default array in
+prefs.php (db_prefs.php).
+
include('../functions/abook_local_file.php');
include('../functions/abook_ldap_server.php');
- // Un-comment if you're using database backend
- // include('../functions/abook_database.php');
+ // Only load database backend if database is configured
+ if(isset($addrbook_dsn))
+ include('../functions/abook_database.php');
// Create and initialize an addressbook object.
// Returns the created object
function addressbook_init($showerr = true, $onlylocal = false) {
global $data_dir, $username, $ldap_server;
+ global $addrbook_dsn;
// Create a new addressbook object
$abook = new AddressBook;
- // Always add a local backend
-
- // Use *either* file-based *or* database addressbook. Remove
- // and insert comments to enable the one you want.
-
- // ------ BEGIN Initialize file-based personal addressbook ------
- $filename = sprintf('%s%s.abook', $data_dir, $username);
- $r = $abook->add_backend('local_file', Array('filename' => $filename,
- 'create' => true));
-
- if(!$r && $showerr) {
- printf(_("Error opening file %s"), $filename);
- exit;
+ // Always add a local backend. We use *either* file-based *or* a
+ // database addressbook. If $addrbook_dsn is set, the database
+ // backend is used. If not, addressbooks are stores in files.
+ if(isset($addrbook_dsn) && !empty($addrbook_dsn)) {
+ // Database
+ $r = $abook->add_backend('database', Array('dsn' => $addrbook_dsn,
+ 'owner' => $username,
+ 'table' => 'address'));
+ if(!$r && $showerr) {
+ printf(_("Error initializing addressbook database."));
+ exit;
+ }
+ } else {
+ // File
+ $filename = sprintf('%s%s.abook', $data_dir, $username);
+ $r = $abook->add_backend('local_file', Array('filename' => $filename,
+ 'create' => true));
+ if(!$r && $showerr) {
+ printf(_("Error opening file %s"), $filename);
+ exit;
+ }
}
- // ------ END Initialize file-based personal addressbook ------
-
- // ------ BEGIN Initialize database-based personal addressbook ------
- // $r = $abook->add_backend('database', Array('dsn' => 'mysql://dbuser@host/dbname',
- // 'owner' => $username,
- // 'table' => 'address'));
- // if(!$r && $showerr) {
- // printf(_("Error initializing addressbook: %s"), $filename);
- // exit;
- // }
- // ------ END Initialize database-based personal addressbook ------
if($onlylocal)
return $abook;