<?php
-
+
/**
* abook_database.php
*
- * Copyright (c) 1999-2004 The SquirrelMail Project Team
- * Licensed under the GNU GPL. For full terms see the file COPYING.
+ * Supported database schema
+ * <pre>
+ * owner varchar(128) NOT NULL
+ * nickname varchar(16) NOT NULL
+ * firstname varchar(128)
+ * lastname varchar(128)
+ * email varchar(128) NOT NULL
+ * label varchar(255)
+ * PRIMARY KEY (owner,nickname)
+ * </pre>
+ *
+ * @copyright © 1999-2007 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
+ * @version $Id$
+ * @package squirrelmail
+ * @subpackage addressbook
+ */
+
+/**
+ * Needs the DB functions
+ * Don't display errors here. Error will be set in class constructor function.
+ */
+@include_once('DB.php');
+
+/**
+ * Address book in a database backend
*
- * Backend for personal addressbook stored in a database,
+ * Backend for personal/shared address book stored in a database,
* accessed using the DB-classes in PEAR.
*
* IMPORTANT: The PEAR modules must be in the include path
*
* An array with the following elements must be passed to
* the class constructor (elements marked ? are optional):
- *
- * dsn => database DNS (see PEAR for syntax)
- * table => table to store addresses in (must exist)
- * owner => current user (owner of address data)
- * ? writeable => set writeable flag (true/false)
- *
+ * <pre>
+ * dsn => database DNS (see PEAR for syntax)
+ * table => table to store addresses in (must exist)
+ * owner => current user (owner of address data)
+ * ? name => name of address book
+ * ? writeable => set writeable flag (true/false)
+ * ? listing => enable/disable listing
+ * </pre>
* The table used should have the following columns:
* owner, nickname, firstname, lastname, email, label
* The pair (owner,nickname) should be unique (primary key).
*
* NOTE. This class should not be used directly. Use the
* "AddressBook" class instead.
- *
- * @version $Id$
* @package squirrelmail
* @subpackage addressbook
*/
-
-/** Needs the DB functions */
-require_once('DB.php');
-
-/**
- * Undocumented class - stores the addressbook in a sql database
- * @package squirrelmail
- */
class abook_database extends addressbook_backend {
+ /**
+ * Backend type
+ * @var string
+ */
var $btype = 'local';
+ /**
+ * Backend name
+ * @var string
+ */
var $bname = 'database';
-
+
+ /**
+ * Data Source Name (connection description)
+ * @var string
+ */
var $dsn = '';
+ /**
+ * Table that stores addresses
+ * @var string
+ */
var $table = '';
+ /**
+ * Owner name
+ *
+ * Limits list of database entries visible to end user
+ * @var string
+ */
var $owner = '';
+ /**
+ * Database Handle
+ * @var resource
+ */
var $dbh = false;
-
+ /**
+ * Enable/disable writing into address book
+ * @var bool
+ */
var $writeable = true;
-
+ /**
+ * Enable/disable address book listing
+ * @var bool
+ */
+ var $listing = true;
+
/* ========================== Private ======================= */
-
- /* Constructor */
+
+ /**
+ * Constructor
+ * @param array $param address book backend options
+ */
function abook_database($param) {
- $this->sname = _("Personal address book");
-
+ $this->sname = _("Personal Address Book");
+
+ /* test if Pear DB class is available and freak out if it is not */
+ if (! class_exists('DB')) {
+ // same error also in db_prefs.php
+ $error = _("Could not include PEAR database functions required for the database backend.") . "\n";
+ $error .= sprintf(_("Is PEAR installed, and is the include path set correctly to find %s?"),
+ 'DB.php') . "\n";
+ $error .= _("Please contact your system administrator and report this error.");
+ return $this->set_error($error);
+ }
+
if (is_array($param)) {
- if (empty($param['dsn']) ||
- empty($param['table']) ||
+ if (empty($param['dsn']) ||
+ empty($param['table']) ||
empty($param['owner'])) {
return $this->set_error('Invalid parameters');
}
-
+
$this->dsn = $param['dsn'];
$this->table = $param['table'];
$this->owner = $param['owner'];
-
+
if (!empty($param['name'])) {
$this->sname = $param['name'];
}
return $this->set_error('Invalid argument to constructor');
}
}
-
-
- /* Open the database. New connection if $new is true */
+
+
+ /**
+ * Open the database.
+ * @param bool $new new connection if it is true
+ * @return bool
+ */
function open($new = false) {
$this->error = '';
-
+
/* Return true is file is open and $new is unset */
if ($this->dbh && !$new) {
return true;
}
-
+
/* Close old file, if any */
if ($this->dbh) {
$this->close();
}
-
+
$dbh = DB::connect($this->dsn, true);
-
+
if (DB::isError($dbh)) {
return $this->set_error(sprintf(_("Database error: %s"),
DB::errorMessage($dbh)));
}
-
+
$this->dbh = $dbh;
+
+ /**
+ * field names are lowercased.
+ * We use unquoted identifiers and they use upper case in Oracle
+ */
+ $this->dbh->setOption('portability', DB_PORTABILITY_LOWERCASE);
+
return true;
}
- /* Close the file and forget the filehandle */
+ /**
+ * Close the file and forget the filehandle
+ */
function close() {
$this->dbh->disconnect();
$this->dbh = false;
}
+ /**
+ * Determine internal database field name given one of
+ * the SquirrelMail SM_ABOOK_FIELD_* constants
+ *
+ * @param integer $field The SM_ABOOK_FIELD_* contant to look up
+ *
+ * @return string The desired field name, or the string "ERROR"
+ * if the $field is not understood (the caller
+ * is responsible for handing errors)
+ *
+ */
+ function get_field_name($field) {
+ switch ($field) {
+ case SM_ABOOK_FIELD_NICKNAME:
+ return 'nickname';
+ case SM_ABOOK_FIELD_FIRSTNAME:
+ return 'firstname';
+ case SM_ABOOK_FIELD_LASTNAME:
+ return 'lastname';
+ case SM_ABOOK_FIELD_EMAIL:
+ return 'email';
+ case SM_ABOOK_FIELD_LABEL:
+ return 'label';
+ default:
+ return 'ERROR';
+ }
+ }
+
/* ========================== Public ======================== */
-
- /* Search the file */
- function &search($expr) {
+
+ /**
+ * Search the database
+ *
+ * Backend supports only * and ? wildcards. Complex eregs are not supported.
+ * Search is case insensitive.
+ * @param string $expr search expression
+ * @return array search results. boolean false on error
+ */
+ function search($expr) {
$ret = array();
if(!$this->open()) {
return false;
return;
}
- /* Make regexp from glob'ed expression */
+ // don't allow wide search when listing is disabled.
+ if ($expr=='*' && ! $this->listing)
+ return array();
+
+ /* lowercase expression in order to make it case insensitive */
+ $expr = strtolower($expr);
+
+ /* escape SQL wildcards */
+ $expr = str_replace('_', '\\_', $expr);
+ $expr = str_replace('%', '\\%', $expr);
+
+ /* Convert wildcards to SQL syntax */
$expr = str_replace('?', '_', $expr);
$expr = str_replace('*', '%', $expr);
$expr = $this->dbh->quoteString($expr);
$expr = "%$expr%";
+ /* create escape expression */
+ $escape = 'ESCAPE \'' . $this->dbh->quoteString('\\') . '\'';
+
$query = sprintf("SELECT * FROM %s WHERE owner='%s' AND " .
- "(firstname LIKE '%s' OR lastname LIKE '%s')",
- $this->table, $this->owner, $expr, $expr);
+ "(LOWER(firstname) LIKE '%s' %s OR LOWER(lastname) LIKE '%s' %s)",
+ $this->table, $this->owner, $expr, $escape, $expr, $escape);
+
$res = $this->dbh->query($query);
if (DB::isError($res)) {
while ($row = $res->fetchRow(DB_FETCHMODE_ASSOC)) {
array_push($ret, array('nickname' => $row['nickname'],
- 'name' => "$row[firstname] $row[lastname]",
+ 'name' => $this->fullname($row['firstname'], $row['lastname']),
'firstname' => $row['firstname'],
'lastname' => $row['lastname'],
'email' => $row['email'],
}
return $ret;
}
-
- /* Lookup alias */
- function &lookup($alias) {
- if (empty($alias)) {
+
+ /**
+ * Lookup an address by the indicated field.
+ *
+ * @param string $value The value to look up
+ * @param integer $field The field to look in, should be one
+ * of the SM_ABOOK_FIELD_* constants
+ * defined in include/constants.php
+ * (OPTIONAL; defaults to nickname field)
+ * NOTE: uniqueness is only guaranteed
+ * when the nickname field is used here;
+ * otherwise, the first matching address
+ * is returned.
+ *
+ * @return array Array with lookup results when the value
+ * was found, an empty array if the value was
+ * not found.
+ *
+ */
+ function lookup($value, $field=SM_ABOOK_FIELD_NICKNAME) {
+ if (empty($value)) {
return array();
}
-
- $alias = strtolower($alias);
+
+ $value = strtolower($value);
if (!$this->open()) {
return false;
}
-
- $query = sprintf("SELECT * FROM %s WHERE owner='%s' AND nickname='%s'",
- $this->table, $this->owner, $alias);
+
+ $db_field = $this->get_field_name($field);
+ if ($db_field == 'ERROR') {
+ return $this->set_error(sprintf(_("Unknown field name: %s"), $field));
+ }
+
+ $query = sprintf("SELECT * FROM %s WHERE owner = '%s' AND LOWER(%s) = '%s'",
+ $this->table, $this->owner, $db_field,
+ $this->dbh->quoteString($value));
$res = $this->dbh->query($query);
if ($row = $res->fetchRow(DB_FETCHMODE_ASSOC)) {
return array('nickname' => $row['nickname'],
- 'name' => "$row[firstname] $row[lastname]",
+ 'name' => $this->fullname($row['firstname'], $row['lastname']),
'firstname' => $row['firstname'],
'lastname' => $row['lastname'],
'email' => $row['email'],
return array();
}
- /* List all addresses */
- function &list_addr() {
+ /**
+ * List all addresses
+ * @return array search results
+ */
+ function list_addr() {
$ret = array();
if (!$this->open()) {
return false;
}
-
- if(isset($this->listing) && !$this->listing) {
- return array();
- }
+
+ if(isset($this->listing) && !$this->listing) {
+ return array();
+ }
$query = sprintf("SELECT * FROM %s WHERE owner='%s'",
$this->table, $this->owner);
$res = $this->dbh->query($query);
-
+
if (DB::isError($res)) {
return $this->set_error(sprintf(_("Database error: %s"),
DB::errorMessage($res)));
while ($row = $res->fetchRow(DB_FETCHMODE_ASSOC)) {
array_push($ret, array('nickname' => $row['nickname'],
- 'name' => "$row[firstname] $row[lastname]",
+ 'name' => $this->fullname($row['firstname'], $row['lastname']),
'firstname' => $row['firstname'],
'lastname' => $row['lastname'],
'email' => $row['email'],
return $ret;
}
- /* Add address */
+ /**
+ * Add address
+ * @param array $userdata added data
+ * @return bool
+ */
function add($userdata) {
if (!$this->writeable) {
- return $this->set_error(_("Addressbook is read-only"));
+ return $this->set_error(_("Address book is read-only"));
}
if (!$this->open()) {
return false;
}
-
+
/* See if user exist already */
$ret = $this->lookup($userdata['nickname']);
if (!empty($ret)) {
- return $this->set_error(sprintf(_("User '%s' already exist"),
- $ret['nickname']));
+ return $this->set_error(sprintf(_("User \"%s\" already exists"),$ret['nickname']));
}
/* Create query */
"'%s','%s','%s')",
$this->table, $this->owner,
$this->dbh->quoteString($userdata['nickname']),
- $this->dbh->quoteString($userdata['firstname']),
- $this->dbh->quoteString($userdata['lastname']),
- $this->dbh->quoteString($userdata['email']),
- $this->dbh->quoteString($userdata['label']) );
+ $this->dbh->quoteString($userdata['firstname']),
+ $this->dbh->quoteString((!empty($userdata['lastname'])?$userdata['lastname']:'')),
+ $this->dbh->quoteString($userdata['email']),
+ $this->dbh->quoteString((!empty($userdata['label'])?$userdata['label']:'')) );
/* Do the insert */
$r = $this->dbh->simpleQuery($query);
- if ($r == DB_OK) {
- return true;
+
+ /* Check for errors */
+ if (DB::isError($r)) {
+ return $this->set_error(sprintf(_("Database error: %s"),
+ DB::errorMessage($r)));
}
-
- /* Fail */
- return $this->set_error(sprintf(_("Database error: %s"),
- DB::errorMessage($r)));
+ return true;
}
- /* Delete address */
+ /**
+ * Deletes address book entries
+ * @param array $alias aliases that have to be deleted. numerical
+ * array with nickname values
+ * @return bool
+ */
function remove($alias) {
if (!$this->writeable) {
- return $this->set_error(_("Addressbook is read-only"));
+ return $this->set_error(_("Address book is read-only"));
}
if (!$this->open()) {
return false;
}
-
+
/* Create query */
$query = sprintf("DELETE FROM %s WHERE owner='%s' AND (",
$this->table, $this->owner);
/* Delete entry */
$r = $this->dbh->simpleQuery($query);
- if ($r == DB_OK) {
- return true;
- }
- /* Fail */
- return $this->set_error(sprintf(_("Database error: %s"),
- DB::errorMessage($r)));
+ /* Check for errors */
+ if (DB::isError($r)) {
+ return $this->set_error(sprintf(_("Database error: %s"),
+ DB::errorMessage($r)));
+ }
+ return true;
}
- /* Modify address */
+ /**
+ * Modify address
+ * @param string $alias modified alias
+ * @param array $userdata new data
+ * @return bool
+ */
function modify($alias, $userdata) {
if (!$this->writeable) {
- return $this->set_error(_("Addressbook is read-only"));
+ return $this->set_error(_("Address book is read-only"));
}
if (!$this->open()) {
return false;
}
-
+
/* See if user exist */
$ret = $this->lookup($alias);
if (empty($ret)) {
- return $this->set_error(sprintf(_("User '%s' does not exist"),
- $alias));
+ return $this->set_error(sprintf(_("User \"%s\" does not exist"),$alias));
+ }
+
+ /* make sure that new nickname is not used */
+ if (strtolower($alias) != strtolower($userdata['nickname'])) {
+ /* same check as in add() */
+ $ret = $this->lookup($userdata['nickname']);
+ if (!empty($ret)) {
+ $error = sprintf(_("User '%s' already exist."), $ret['nickname']);
+ return $this->set_error($error);
+ }
}
/* Create query */
$query = sprintf("UPDATE %s SET nickname='%s', firstname='%s', ".
"lastname='%s', email='%s', label='%s' ".
"WHERE owner='%s' AND nickname='%s'",
- $this->table,
+ $this->table,
$this->dbh->quoteString($userdata['nickname']),
- $this->dbh->quoteString($userdata['firstname']),
- $this->dbh->quoteString($userdata['lastname']),
- $this->dbh->quoteString($userdata['email']),
- $this->dbh->quoteString($userdata['label']),
+ $this->dbh->quoteString($userdata['firstname']),
+ $this->dbh->quoteString((!empty($userdata['lastname'])?$userdata['lastname']:'')),
+ $this->dbh->quoteString($userdata['email']),
+ $this->dbh->quoteString((!empty($userdata['label'])?$userdata['label']:'')),
$this->owner,
$this->dbh->quoteString($alias) );
/* Do the insert */
$r = $this->dbh->simpleQuery($query);
- if ($r == DB_OK) {
- return true;
- }
- /* Fail */
- return $this->set_error(sprintf(_("Database error: %s"),
- DB::errorMessage($r)));
+ /* Check for errors */
+ if (DB::isError($r)) {
+ return $this->set_error(sprintf(_("Database error: %s"),
+ DB::errorMessage($r)));
+ }
+ return true;
}
} /* End of class abook_database */
-?>
+// vim: et ts=4
projects / squirrelmail.git / blobdiff