X-Git-Url: https://vcs.fsf.org/?p=squirrelmail.git;a=blobdiff_plain;f=functions%2Faddressbook.php;h=92f298c2bea5cad7849604e45a60c490394cfeb5;hp=6a45f348f23b886bc1678fdc137b251e13dae15e;hb=15e6162eacc97158393bc75aed3afeb7b19c24a6;hpb=355861846a51d35efe50848869d680fd3b4a5316
diff --git a/functions/addressbook.php b/functions/addressbook.php
index 6a45f348..92f298c2 100644
--- a/functions/addressbook.php
+++ b/functions/addressbook.php
@@ -3,7 +3,7 @@
/**
* addressbook.php
*
- * Copyright (c) 1999-2001 The Squirrelmail Development Team
+ * Copyright (c) 1999-2002 The SquirrelMail Project Team
* Licensed under the GNU GPL. For full terms see the file COPYING.
*
* Functions and classes for the addressbook system.
@@ -11,484 +11,504 @@
* $Id$
*/
-/*****************************************************************/
-/*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!! ***/
-/*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION. ***/
-/*** + Base level indent should begin at left margin, as ***/
-/*** the require_once below looks. ***/
-/*** + All identation should consist of four space blocks ***/
-/*** + Tab characters are evil. ***/
-/*** + all comments should use "slash-star ... star-slash" ***/
-/*** style -- no pound characters, no slash-slash style ***/
-/*** + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD ***/
-/*** ALWAYS USE { AND } CHARACTERS!!! ***/
-/*** + Please use ' instead of ", when possible. Note " ***/
-/*** should always be used in _( ) function calls. ***/
-/*** Thank you for your help making the SM code more readable. ***/
-/*****************************************************************/
-
-// This is the path to the global site-wide addressbook.
-// It looks and feels just like a user's .abook file
-// If this is in the data directory, use "$data_dir/global.abook"
-// If not, specify the path as though it was accessed from the
-// src/ directory ("../global.abook" -> in main directory)
-//
-// If you don't want a global site-wide addressbook, comment these
-// two lines out. (They are disabled by default.)
-//
-// The global addressbook is unmodifiable by anyone. You must actually
-// use a shell script or whatnot to modify the contents.
-//
-//global $data_dir;
-//$address_book_global_filename = "$data_dir/global.abook";
-
-// Include backends here.
+/*
+ This is the path to the global site-wide addressbook.
+ It looks and feels just like a user's .abook file
+ If this is in the data directory, use "$data_dir/global.abook"
+ If not, specify the path as though it was accessed from the
+ src/ directory ("../global.abook" -> in main directory)
+
+ If you don't want a global site-wide addressbook, comment these
+ two lines out. (They are disabled by default.)
+
+ The global addressbook is unmodifiable by anyone. You must actually
+ use a shell script or whatnot to modify the contents.
+
+ global $data_dir;
+ $address_book_global_filename = "$data_dir/global.abook";
+
+ Include backends here.
+*/
+
require_once('../functions/abook_local_file.php');
require_once('../functions/abook_ldap_server.php');
- // Use this if you wanna have a global address book
- if (isset($address_book_global_filename))
- include_once('../functions/abook_global_file.php');
-
- // Only load database backend if database is configured
- global $addrbook_dsn;
- if(isset($addrbook_dsn))
- include_once('../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, $address_book_global_filename;
- global $addrbook_dsn;
-
- // Create a new addressbook object
- $abook = new AddressBook;
-
- // 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"), $filename);
- exit;
- }
-
- }
-
- // This would be for the global addressbook
- if (isset($address_book_global_filename)) {
- $r = $abook->add_backend('global_file');
- if (!$r && $showerr) {
- printf(_("Error initializing global addressbook."));
- exit;
- }
- }
-
- if($onlylocal)
- return $abook;
-
- // Load configured LDAP servers (if PHP has LDAP support)
- if(isset($ldap_server) && is_array($ldap_server) &&
- function_exists('ldap_connect')) {
- reset($ldap_server);
- while(list($undef,$param) = each($ldap_server)) {
- if(is_array($param)) {
- $r = $abook->add_backend('ldap_server', $param);
- if(!$r && $showerr) {
- printf(' ' . _("Error initializing LDAP server %s:") .
- "
\n", $param['host']);
- print(' ' . $abook->error);
- exit;
- }
- }
- }
- }
-
- // Return the initialized object
- return $abook;
- }
-
-
- // Had to move this function outside of the Addressbook Class
- // PHP 4.0.4 Seemed to be having problems with inline functions.
- function addressbook_cmp($a,$b) {
- if($a['backend'] > $b['backend'])
- return 1;
- else if($a['backend'] < $b['backend'])
- return -1;
- return (strtolower($a['name']) > strtolower($b['name'])) ? 1 : -1;
- }
-
-
- /**
- ** This is the main address book class that connect all the
- ** backends and provide services to the functions above.
- **
- **/
-
- class AddressBook {
- var $backends = array();
- var $numbackends = 0;
- var $error = '';
- var $localbackend = 0;
- var $localbackendname = '';
+global $addrbook_dsn;
+
+/* Use this if you wanna have a global address book */
+if (isset($address_book_global_filename)) {
+ include_once('../functions/abook_global_file.php');
+}
+
+/* Only load database backend if database is configured */
+if(isset($addrbook_dsn)) {
+ include_once('../functions/abook_database.php');
+}
+
+/*
+ Create and initialize an addressbook object.
+ Returns the created object
+*/
+function addressbook_init($showerr = true, $onlylocal = false) {
+ global $data_dir, $username, $ldap_server, $address_book_global_filename;
+ global $addrbook_dsn;
+
+ /* Create a new addressbook object */
+ $abook = new AddressBook;
+
+ /*
+ 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) {
+ echo _("Error initializing addressbook database.");
+ exit;
+ }
+ } else {
+ /* File */
+ $filename = getHashedFile($username, $data_dir, "$username.abook");
+ $r = $abook->add_backend('local_file', Array('filename' => $filename,
+ 'create' => true));
+ if(!$r && $showerr) {
+ printf( _("Error opening file %s"), $filename );
+ exit;
+ }
+
+ }
+
+ /* This would be for the global addressbook */
+ if (isset($address_book_global_filename)) {
+ $r = $abook->add_backend('global_file');
+ if (!$r && $showerr) {
+ echo _("Error initializing global addressbook.");
+ exit;
+ }
+ }
+
+ if ($onlylocal) {
+ return $abook;
+ }
+
+ /* Load configured LDAP servers (if PHP has LDAP support) */
+ if (isset($ldap_server) && is_array($ldap_server) && function_exists('ldap_connect')) {
+ reset($ldap_server);
+ while (list($undef,$param) = each($ldap_server)) {
+ if (is_array($param)) {
+ $r = $abook->add_backend('ldap_server', $param);
+ if (!$r && $showerr) {
+ printf( ' ' . _("Error initializing LDAP server %s:") .
+ "
\n", $param['host']);
+ echo ' ' . $abook->error;
+ exit;
+ }
+ }
+ }
+ }
+
+ /* Return the initialized object */
+ return $abook;
+}
+
+
+/*
+ * Had to move this function outside of the Addressbook Class
+ * PHP 4.0.4 Seemed to be having problems with inline functions.
+ */
+function addressbook_cmp($a,$b) {
+
+ if($a['backend'] > $b['backend']) {
+ return 1;
+ } else if($a['backend'] < $b['backend']) {
+ return -1;
+ }
+
+ return (strtolower($a['name']) > strtolower($b['name'])) ? 1 : -1;
+
+}
+
+
+/*
+ * This is the main address book class that connect all the
+ * backends and provide services to the functions above.
+ *
+ */
+class AddressBook {
+
+ var $backends = array();
+ var $numbackends = 0;
+ var $error = '';
+ var $localbackend = 0;
+ var $localbackendname = '';
+
// Constructor function.
- function AddressBook() {
- $localbackendname = _("Personal address book");
- }
-
- // Return an array of backends of a given type,
- // or all backends if no type is specified.
- function get_backend_list($type = '') {
- $ret = array();
- for($i = 1 ; $i <= $this->numbackends ; $i++) {
- if(empty($type) || $type == $this->backends[$i]->btype) {
- $ret[] = &$this->backends[$i];
- }
- }
- return $ret;
- }
-
-
- // ========================== Public ========================
-
- // Add a new backend. $backend is the name of a backend
- // (without the abook_ prefix), and $param is an optional
- // mixed variable that is passed to the backend constructor.
- // See each of the backend classes for valid parameters.
- function add_backend($backend, $param = '') {
- $backend_name = 'abook_' . $backend;
- eval('$newback = new ' . $backend_name . '($param);');
- if(!empty($newback->error)) {
- $this->error = $newback->error;
- return false;
- }
-
- $this->numbackends++;
-
- $newback->bnum = $this->numbackends;
- $this->backends[$this->numbackends] = $newback;
-
- // Store ID of first local backend added
- if($this->localbackend == 0 && $newback->btype == 'local') {
- $this->localbackend = $this->numbackends;
- $this->localbackendname = $newback->sname;
- }
-
- return $this->numbackends;
- }
-
-
- // Return a list of addresses matching expression in
- // all backends of a given type.
- function search($expression, $bnum = -1) {
- $ret = array();
- $this->error = '';
-
- // Search all backends
- if($bnum == -1) {
- $sel = $this->get_backend_list('');
- $failed = 0;
- for($i = 0 ; $i < sizeof($sel) ; $i++) {
- $backend = &$sel[$i];
- $backend->error = '';
- $res = $backend->search($expression);
- if(is_array($res)) {
- $ret = array_merge($ret, $res);
- } else {
- $this->error .= "
\n" . $backend->error;
- $failed++;
- }
- }
-
- // Only fail if all backends failed
- if($failed >= sizeof($sel))
- return false;
-
- }
-
- // Search only one backend
- else {
- $ret = $this->backends[$bnum]->search($expression);
- if(!is_array($ret)) {
- $this->error .= "
\n" . $this->backends[$bnum]->error;
- return false;
- }
- }
-
- return $ret;
- }
-
-
- // Return a sorted search
- function s_search($expression, $bnum = -1) {
-
- $ret = $this->search($expression, $bnum);
- if(!is_array($ret))
- return $ret;
- usort($ret, 'addressbook_cmp');
- return $ret;
- }
-
-
- // Lookup an address by alias. Only possible in
- // local backends.
- function lookup($alias, $bnum = -1) {
- $ret = array();
-
- if($bnum > -1) {
- $res = $this->backends[$bnum]->lookup($alias);
- if(is_array($res)) {
- return $res;
- } else {
- $this->error = $backend->error;
- return false;
- }
- }
-
- $sel = $this->get_backend_list('local');
- for($i = 0 ; $i < sizeof($sel) ; $i++) {
- $backend = &$sel[$i];
- $backend->error = '';
- $res = $backend->lookup($alias);
- if(is_array($res)) {
- if(!empty($res))
- return $res;
- } else {
- $this->error = $backend->error;
- return false;
- }
- }
-
- return $ret;
- }
-
-
- // Return all addresses
- function list_addr($bnum = -1) {
- $ret = array();
-
- if($bnum == -1)
- $sel = $this->get_backend_list('local');
- else
- $sel = array(0 => &$this->backends[$bnum]);
-
- for($i = 0 ; $i < sizeof($sel) ; $i++) {
- $backend = &$sel[$i];
- $backend->error = '';
- $res = $backend->list_addr();
- if(is_array($res)) {
- $ret = array_merge($ret, $res);
- } else {
- $this->error = $backend->error;
- return false;
- }
- }
-
- return $ret;
- }
-
-
- // Create a new address from $userdata, in backend $bnum.
- // Return the backend number that the/ address was added
- // to, or false if it failed.
- function add($userdata, $bnum) {
-
- // Validate data
- if(!is_array($userdata)) {
- $this->error = _("Invalid input data");
- return false;
- }
- if(empty($userdata['firstname']) &&
- empty($userdata['lastname'])) {
- $this->error = _("Name is missing");
- return false;
- }
- if(empty($userdata['email'])) {
- $this->error = _("E-mail address is missing");
- return false;
- }
- if(empty($userdata['nickname'])) {
- $userdata['nickname'] = $userdata['email'];
- }
-
- if(eregi('[ \\:\\|\\#\\"\\!]', $userdata['nickname'])) {
- $this->error = _("Nickname contains illegal characters");
- return false;
- }
-
- // Check that specified backend accept new entries
- if(!$this->backends[$bnum]->writeable) {
- $this->error = _("Addressbook is read-only");
- return false;
- }
-
- // Add address to backend
- $res = $this->backends[$bnum]->add($userdata);
- if($res) {
- return $bnum;
- } else {
- $this->error = $this->backends[$bnum]->error;
- return false;
- }
-
- return false; // Not reached
- } // end of add()
-
-
- // Remove the user identified by $alias from backend $bnum
- // If $alias is an array, all users in the array are removed.
- function remove($alias, $bnum) {
-
- // Check input
- if(empty($alias))
- return true;
-
- // Convert string to single element array
- if(!is_array($alias))
- $alias = array(0 => $alias);
-
- // Check that specified backend is writable
- if(!$this->backends[$bnum]->writeable) {
- $this->error = _("Addressbook is read-only");
- return false;
- }
-
- // Remove user from backend
- $res = $this->backends[$bnum]->remove($alias);
- if($res) {
- return $bnum;
- } else {
- $this->error = $this->backends[$bnum]->error;
- return false;
- }
-
- return false; // Not reached
- } // end of remove()
-
-
- // Remove the user identified by $alias from backend $bnum
- // If $alias is an array, all users in the array are removed.
- function modify($alias, $userdata, $bnum) {
-
- // Check input
- if(empty($alias) || !is_string($alias))
- return true;
-
- // Validate data
- if(!is_array($userdata)) {
- $this->error = _("Invalid input data");
- return false;
- }
- if(empty($userdata['firstname']) &&
- empty($userdata['lastname'])) {
- $this->error = _("Name is missing");
- return false;
- }
- if(empty($userdata['email'])) {
- $this->error = _("E-mail address is missing");
- return false;
- }
-
- if(eregi('[\\: \\|\\#"\\!]', $userdata['nickname'])) {
- $this->error = _("Nickname contains illegal characters");
- return false;
- }
-
- if(empty($userdata['nickname'])) {
- $userdata['nickname'] = $userdata['email'];
- }
-
- // Check that specified backend is writable
- if(!$this->backends[$bnum]->writeable) {
- $this->error = _("Addressbook is read-only");;
- return false;
- }
-
- // Modify user in backend
- $res = $this->backends[$bnum]->modify($alias, $userdata);
- if($res) {
- return $bnum;
- } else {
- $this->error = $this->backends[$bnum]->error;
- return false;
- }
-
- return false; // Not reached
- } // end of modify()
-
-
- } // End of class Addressbook
-
- /**
- ** Generic backend that all other backends extend
- **/
- class addressbook_backend {
-
- // Variables that all backends must provide.
- var $btype = 'dummy';
- var $bname = 'dummy';
- var $sname = 'Dummy backend';
-
- // Variables common for all backends, but that
- // should not be changed by the backends.
- var $bnum = -1;
- var $error = '';
- var $writeable = false;
-
- function set_error($string) {
- $this->error = '[' . $this->sname . '] ' . $string;
- return false;
- }
-
-
- // ========================== Public ========================
-
- function search($expression) {
- $this->set_error('search not implemented');
- return false;
- }
-
- function lookup($alias) {
- $this->set_error('lookup not implemented');
- return false;
- }
-
- function list_addr() {
- $this->set_error('list_addr not implemented');
- return false;
- }
-
- function add($userdata) {
- $this->set_error('add not implemented');
- return false;
- }
-
- function remove($alias) {
- $this->set_error('delete not implemented');
- return false;
- }
-
- function modify($alias, $newuserdata) {
- $this->set_error('modify not implemented');
- return false;
- }
-
- }
+ function AddressBook() {
+ $localbackendname = _("Personal address book");
+ }
+
+ /*
+ * Return an array of backends of a given type,
+ * or all backends if no type is specified.
+ */
+ function get_backend_list($type = '') {
+ $ret = array();
+ for ($i = 1 ; $i <= $this->numbackends ; $i++) {
+ if (empty($type) || $type == $this->backends[$i]->btype) {
+ $ret[] = &$this->backends[$i];
+ }
+ }
+ return $ret;
+ }
+
+
+ /*
+ ========================== Public ========================
+
+ Add a new backend. $backend is the name of a backend
+ (without the abook_ prefix), and $param is an optional
+ mixed variable that is passed to the backend constructor.
+ See each of the backend classes for valid parameters.
+ */
+ function add_backend($backend, $param = '') {
+ $backend_name = 'abook_' . $backend;
+ eval('$newback = new ' . $backend_name . '($param);');
+ if(!empty($newback->error)) {
+ $this->error = $newback->error;
+ return false;
+ }
+
+ $this->numbackends++;
+
+ $newback->bnum = $this->numbackends;
+ $this->backends[$this->numbackends] = $newback;
+
+ /* Store ID of first local backend added */
+ if ($this->localbackend == 0 && $newback->btype == 'local') {
+ $this->localbackend = $this->numbackends;
+ $this->localbackendname = $newback->sname;
+ }
+
+ return $this->numbackends;
+ }
+
+
+ /*
+ Return a list of addresses matching expression in
+ all backends of a given type.
+ */
+ function search($expression, $bnum = -1) {
+ $ret = array();
+ $this->error = '';
+
+ /* Search all backends */
+ if ($bnum == -1) {
+ $sel = $this->get_backend_list('');
+ $failed = 0;
+ for ($i = 0 ; $i < sizeof($sel) ; $i++) {
+ $backend = &$sel[$i];
+ $backend->error = '';
+ $res = $backend->search($expression);
+ if (is_array($res)) {
+ $ret = array_merge($ret, $res);
+ } else {
+ $this->error .= "
\n" . $backend->error;
+ $failed++;
+ }
+ }
+
+ /* Only fail if all backends failed */
+ if( $failed >= sizeof( $sel ) ) {
+ $ret = FALSE;
+ }
+
+ } else {
+
+ /* Search only one backend */
+
+ $ret = $this->backends[$bnum]->search($expression);
+ if (!is_array($ret)) {
+ $this->error .= "
\n" . $this->backends[$bnum]->error;
+ $ret = FALSE;
+ }
+ }
+
+ return( $ret );
+ }
+
+
+ /* Return a sorted search */
+ function s_search($expression, $bnum = -1) {
+
+ $ret = $this->search($expression, $bnum);
+ if ( is_array( $ret ) ) {
+ usort($ret, 'addressbook_cmp');
+ }
+ return $ret;
+ }
+
+
+ /*
+ * Lookup an address by alias. Only possible in
+ * local backends.
+ */
+ function lookup($alias, $bnum = -1) {
+
+ $ret = array();
+
+ if ($bnum > -1) {
+ $res = $this->backends[$bnum]->lookup($alias);
+ if (is_array($res)) {
+ return $res;
+ } else {
+ $this->error = $backend->error;
+ return false;
+ }
+ }
+
+ $sel = $this->get_backend_list('local');
+ for ($i = 0 ; $i < sizeof($sel) ; $i++) {
+ $backend = &$sel[$i];
+ $backend->error = '';
+ $res = $backend->lookup($alias);
+ if (is_array($res)) {
+ if(!empty($res))
+ return $res;
+ } else {
+ $this->error = $backend->error;
+ return false;
+ }
+ }
+
+ return $ret;
+ }
+
+
+ /* Return all addresses */
+ function list_addr($bnum = -1) {
+ $ret = array();
+
+ if ($bnum == -1) {
+ $sel = $this->get_backend_list('local');
+ } else {
+ $sel = array(0 => &$this->backends[$bnum]);
+ }
+
+ for ($i = 0 ; $i < sizeof($sel) ; $i++) {
+ $backend = &$sel[$i];
+ $backend->error = '';
+ $res = $backend->list_addr();
+ if (is_array($res)) {
+ $ret = array_merge($ret, $res);
+ } else {
+ $this->error = $backend->error;
+ return false;
+ }
+ }
+
+ return $ret;
+ }
+
+
+ /*
+ * Create a new address from $userdata, in backend $bnum.
+ * Return the backend number that the/ address was added
+ * to, or false if it failed.
+ */
+ function add($userdata, $bnum) {
+
+ /* Validate data */
+ if (!is_array($userdata)) {
+ $this->error = _("Invalid input data");
+ return false;
+ }
+ if (empty($userdata['firstname']) && empty($userdata['lastname'])) {
+ $this->error = _("Name is missing");
+ return false;
+ }
+ if (empty($userdata['email'])) {
+ $this->error = _("E-mail address is missing");
+ return false;
+ }
+ if (empty($userdata['nickname'])) {
+ $userdata['nickname'] = $userdata['email'];
+ }
+
+ if (eregi('[ \\:\\|\\#\\"\\!]', $userdata['nickname'])) {
+ $this->error = _("Nickname contains illegal characters");
+ return false;
+ }
+
+ /* Check that specified backend accept new entries */
+ if (!$this->backends[$bnum]->writeable) {
+ $this->error = _("Addressbook is read-only");
+ return false;
+ }
+
+ /* Add address to backend */
+ $res = $this->backends[$bnum]->add($userdata);
+ if ($res) {
+ return $bnum;
+ } else {
+ $this->error = $this->backends[$bnum]->error;
+ return false;
+ }
+
+ return false; // Not reached
+ } /* end of add() */
+
+
+ /*
+ * Remove the user identified by $alias from backend $bnum
+ * If $alias is an array, all users in the array are removed.
+ */
+ function remove($alias, $bnum) {
+
+ /* Check input */
+ if (empty($alias)) {
+ return true;
+ }
+
+ /* Convert string to single element array */
+ if (!is_array($alias)) {
+ $alias = array(0 => $alias);
+ }
+
+ /* Check that specified backend is writable */
+ if (!$this->backends[$bnum]->writeable) {
+ $this->error = _("Addressbook is read-only");
+ return false;
+ }
+
+ /* Remove user from backend */
+ $res = $this->backends[$bnum]->remove($alias);
+ if ($res) {
+ return $bnum;
+ } else {
+ $this->error = $this->backends[$bnum]->error;
+ return false;
+ }
+
+ return FALSE; /* Not reached */
+ } /* end of remove() */
+
+
+ /*
+ * Remove the user identified by $alias from backend $bnum
+ * If $alias is an array, all users in the array are removed.
+ */
+ function modify($alias, $userdata, $bnum) {
+
+ /* Check input */
+ if (empty($alias) || !is_string($alias)) {
+ return true;
+ }
+
+ /* Validate data */
+ if(!is_array($userdata)) {
+ $this->error = _("Invalid input data");
+ return false;
+ }
+ if (empty($userdata['firstname']) && empty($userdata['lastname'])) {
+ $this->error = _("Name is missing");
+ return false;
+ }
+ if (empty($userdata['email'])) {
+ $this->error = _("E-mail address is missing");
+ return false;
+ }
+
+ if (eregi('[\\: \\|\\#"\\!]', $userdata['nickname'])) {
+ $this->error = _("Nickname contains illegal characters");
+ return false;
+ }
+
+ if (empty($userdata['nickname'])) {
+ $userdata['nickname'] = $userdata['email'];
+ }
+
+ /* Check that specified backend is writable */
+ if (!$this->backends[$bnum]->writeable) {
+ $this->error = _("Addressbook is read-only");;
+ return false;
+ }
+
+ /* Modify user in backend */
+ $res = $this->backends[$bnum]->modify($alias, $userdata);
+ if ($res) {
+ return $bnum;
+ } else {
+ $this->error = $this->backends[$bnum]->error;
+ return false;
+ }
+
+ return FALSE; /* Not reached */
+ } /* end of modify() */
+
+
+} /* End of class Addressbook */
+
+/*
+ * Generic backend that all other backends extend
+ */
+class addressbook_backend {
+
+ /* Variables that all backends must provide. */
+ var $btype = 'dummy';
+ var $bname = 'dummy';
+ var $sname = 'Dummy backend';
+
+ /*
+ * Variables common for all backends, but that
+ * should not be changed by the backends.
+ */
+ var $bnum = -1;
+ var $error = '';
+ var $writeable = false;
+
+ function set_error($string) {
+ $this->error = '[' . $this->sname . '] ' . $string;
+ return false;
+ }
+
+
+ /* ========================== Public ======================== */
+
+ function search($expression) {
+ $this->set_error('search not implemented');
+ return false;
+ }
+
+ function lookup($alias) {
+ $this->set_error('lookup not implemented');
+ return false;
+ }
+
+ function list_addr() {
+ $this->set_error('list_addr not implemented');
+ return false;
+ }
+
+ function add($userdata) {
+ $this->set_error('add not implemented');
+ return false;
+ }
+
+ function remove($alias) {
+ $this->set_error('delete not implemented');
+ return false;
+ }
+
+ function modify($alias, $newuserdata) {
+ $this->set_error('modify not implemented');
+ return false;
+ }
+
+}
?>