User edition

Added forms that allow user display names to be set and passwords to be
changed. All users can modify users at this time.

database/users-functions.sql

@@ -25,6 +25,32 @@ REVOKE EXECUTE ON FUNCTION users_add( TEXT , TEXT , INT , TEXT , TEXT ) FROM PUB
 GRANT EXECUTE ON FUNCTION users_add( TEXT , TEXT , INT , TEXT , TEXT) TO :webapp_user;
 
 
+--
+-- Update an user's address and display name
+--
+
+CREATE OR REPLACE FUNCTION users_edit( _id INT , _email TEXT , _name TEXT )
+	RETURNS INT
+	LANGUAGE PLPGSQL
+	STRICT VOLATILE SECURITY INVOKER
+AS $users_edit$
+BEGIN
+	IF _name = '' THEN
+		_name := NULL;
+	END IF;
+
+	UPDATE users SET user_email = _email , user_display_name = _name
+		WHERE user_id = _id;
+	RETURN ( CASE WHEN FOUND THEN 0 ELSE 2 END );
+EXCEPTION
+	WHEN unique_violation THEN
+		RETURN 1;
+END;
+$users_edit$;
+
+REVOKE EXECUTE ON FUNCTION users_edit( INT , TEXT , TEXT ) FROM PUBLIC;
+GRANT EXECUTE ON FUNCTION users_edit( INT , TEXT , TEXT ) TO :webapp_user;
+
 
 --
 -- View that lists users and adds the string to use when displaying

includes/t-basics/dao_users.inc.php

@@ -15,6 +15,25 @@ class Dao_Users
 		return $hash;
 	}
 
+	private function hashNewPassword( $password )
+	{
+		$iterations = rand( 130 , 160 );
+
+		$randSource = array( );
+		for ( $i = 0 ; $i < 26 ; $i ++ ) {
+			array_push( $randSource , chr( $i + ord( 'a' ) ) );
+			array_push( $randSource , chr( $i + ord( 'A' ) ) );
+			if ( $i < 10 ) {
+				array_push( $randSource , chr( $i + 48 ) );
+			}
+		}
+		shuffle( $randSource );
+		$salt = join( '' , array_splice( $randSource , 0 , 4 ) );
+
+		$hash = $this->hashPassword( $password , $salt , $iterations );
+		return array( $iterations , $salt , $hash );
+	}
+
 
 	public function getUsers( )
 	{
@@ -25,9 +44,20 @@ class Dao_Users
 	}
 
 
+	public function getUserById( $uid )
+	{
+		$query = $this->query( 'SELECT * FROM users_view WHERE user_id = $1' );
+		$results = $query->execute( $uid );
+		if ( empty( $results ) ) {
+			return null;
+		}
+		return array_shift( $results );
+	}
+
+
 	public function getUser( $email )
 	{
-		$query = $this->query( 'SELECT * FROM users WHERE user_email = LOWER( $1 )' );
+		$query = $this->query( 'SELECT * FROM users_view WHERE user_email = LOWER( $1 )' );
 		$results = $query->execute( $email );
 		if ( empty( $results ) ) {
 			return null;
@@ -53,21 +83,7 @@ class Dao_Users
 
 	public function addUser( $email , $password , $name )
 	{
-		$iterations = rand( 130 , 160 );
-
-		$randSource = array( );
-		for ( $i = 0 ; $i < 26 ; $i ++ ) {
-			array_push( $randSource , chr( $i + ord( 'a' ) ) );
-			array_push( $randSource , chr( $i + ord( 'A' ) ) );
-			if ( $i < 10 ) {
-				array_push( $randSource , chr( $i + 48 ) );
-			}
-		}
-		shuffle( $randSource );
-		$salt = join( '' , array_splice( $randSource , 0 , 4 ) );
-
-		$hash = $this->hashPassword( $password , $salt , $iterations );
-
+		list( $iterations , $salt , $hash ) = $this->hashNewPassword( $password );
 		$result = $this->query( 'SELECT users_add( $1 , $2 , $3 , $4 , $5 ) AS error' )
 			->execute( $email , $salt , $iterations , $hash , $name );
 		return $result[ 0 ]->error;
@@ -79,4 +95,23 @@ class Dao_Users
 		$result = $this->query( 'SELECT COUNT(*) AS n_users FROM users' )->execute( );
 		return $result[0]->n_users > 0;
 	}
+
+
+	public function modify( $id , $email , $name )
+	{
+		$result = $this->query( 'SELECT users_edit( $1 , $2 , $3 ) AS error'
+			)->execute( $id , $email , $name );
+		return $result[0]->error;
+	}
+
+
+	public function setPassword( $id , $password )
+	{
+		list( $iterations , $salt , $hash ) = $this->hashNewPassword( $password );
+		$this->query(
+			'UPDATE users '
+			.	'SET user_iterations = $1 , user_salt = $2 , user_hash = $3 '
+			.	'WHERE user_id = $4'
+		)->execute( $iterations , $salt , $hash , $id );
+	}
 }

includes/t-users/package.inc.php

@@ -9,5 +9,8 @@ $package[ 'pages' ][] = 'tasks_users';
 $package[ 'ctrls' ][] = 'users_list';
 $package[ 'ctrls' ][] = 'users_add';
 $package[ 'ctrls' ][] = 'users_add_form';
+$package[ 'ctrls' ][] = 'users_edit';
+$package[ 'ctrls' ][] = 'users_edit_form';
+$package[ 'ctrls' ][] = 'users_set_password';
 
 $package[ 'views' ][] = 'users_list';

includes/t-users/users.inc.php

@@ -9,6 +9,7 @@ class Page_TasksUsers
 		parent::__construct( array(
 			''	=> 'users_list' ,
 			'add'	=> 'users_add_form' ,
+			'edit'	=> 'users_edit_form' ,
 		) );
 		$this->setTitle( 'Users' );
 	}
@@ -31,6 +32,56 @@ class Ctrl_UsersList
 }
 
 
+
+class View_UsersList
+	extends BaseURLAwareView
+{
+	private $users;
+
+	public function __construct( $users )
+	{
+		$this->users = $users;
+	}
+
+	public function render( )
+	{
+		$table = HTML::make( 'table' )
+			->appendElement( HTML::make( 'tr' )
+				->setAttribute( 'class' , 'header' )
+				->appendElement( HTML::make( 'th' )
+					->appendText( 'E-mail address' ) )
+				->appendElement( HTML::make( 'th' )
+					->appendText( 'Display name' ) ) );
+
+		foreach ( $this->users as $user ) {
+			$table->appendElement( $this->makeUserRow( $user ) );
+		}
+
+		return $table;
+	}
+
+	private function makeUserRow( $user )
+	{
+		$row = HTML::make( 'tr' )
+			->appendElement( HTML::make( 'td' )
+				->appendElement( $editLink = HTML::make( 'a' ) ) );
+
+		$editLink->setAttribute( 'href' , $this->base . '/users/edit?id=' . $user->user_id )
+			->appendText( $user->user_email );
+
+		$nameColumn = HTML::make( 'td' );
+		if ( $user->user_display_name !== null ) {
+			$nameColumn->appendText( $user->user_display_name );
+		} else {
+			$nameColumn->appendElement( HTML::make( 'em' )->appendText( 'N/A' ) );
+		}
+		$row->appendElement( $nameColumn );
+
+		return $row;
+	}
+}
+
+
 class Ctrl_UsersAddForm
 	extends Controller
 {
@@ -126,48 +177,121 @@ class Ctrl_UsersAdd
 }
 
 
-
-class View_UsersList
-	extends BaseURLAwareView
+class Ctrl_UsersEditForm
+	extends Controller
 {
-	private $users;
 
-	public function __construct( $users )
+	public function handle( Page $page )
 	{
-		$this->users = $users;
+		try {
+			$userId = (int) $this->getParameter( 'id' );
+		} catch ( ParameterException $e ) {
+			return 'users';
+		}
+		$user = Loader::DAO( 'users' )->getUserById( $userId );
+		if ( $user === null ) {
+			return 'users';
 		}
 
-	public function render( )
+		$page->setTitle( 'Modify user ' . $user->user_view_name );
+
+		$details = Loader::Create( 'Form' , 'Modify user' , 'user-edit' , 'Account details' )
+			->addField( Loader::Create( 'Field' , 'id' , 'hidden' )
+				->setDefaultValue( $user->user_id ) )
+			->addField( Loader::Create( 'Field' , 'email' , 'text' )
+					->setDescription( 'E-mail address:' )
+					->setValidator( Loader::Create( 'Validator_Email' , 'Invalid address.' ) )
+					->setDefaultValue( $user->user_email ) )
+			->addField( Loader::Create( 'Field' , 'display-name' , 'text' )
+					->setDescription( 'Display name:' )
+					->setMandatory( false )
+					->setValidator( Loader::Create( 'Validator_StringLength' , 'This display name',
+										5 , 256 , true ) )
+					->setDefaultValue( $user->user_display_name ) )
+			->addController( Loader::Ctrl( 'users_edit' ) )
+			->setURL( 'users' );
+
+		$password = Loader::Create( 'Form' , 'Modify password' , 'user-set-password' , 'Account password' )
+			->addField( Loader::Create( 'Field' , 'id' , 'hidden' )
+				->setDefaultValue( $user->user_id ) )
+			->addField( Loader::Create( 'Field' , 'pass' , 'password' )
+					->setDescription( 'New password:' )
+					->setValidator( Loader::Create( 'Validator_StringLength' , 'This password' , 8 ) ) )
+			->addField( Loader::Create( 'Field' , 'pass2' , 'password' )
+					->setDescription( 'Confirm new password:' ) )
+			->addController( Loader::Ctrl( 'users_set_password' ) )
+			->setSuccessURL( 'users' );
+
+		return array( $details->controller( ) , $password->controller( ) );
+	}
+
+}
+
+
+class Ctrl_UsersEdit
+	extends Controller
+	implements FormAware
+{
+	private $form;
+
+
+	public function setForm( Form $form )
 	{
-		$table = HTML::make( 'table' )
-			->appendElement( HTML::make( 'tr' )
-				->setAttribute( 'class' , 'header' )
-				->appendElement( HTML::make( 'th' )
-					->appendText( 'E-mail address' ) )
-				->appendElement( HTML::make( 'th' )
-					->appendText( 'Display name' ) ) );
-
-		foreach ( $this->users as $user ) {
-			$table->appendElement( $this->makeUserRow( $user ) );
+		$this->form = $form;
 	}
 
-		return $table;
-	}
 
-	private function makeUserRow( $user )
+	public function handle( Page $page )
 	{
-		$row = HTML::make( 'tr' )
-			->appendElement( HTML::make( 'td' )
-				->appendText( $user->user_email ) );
+		$id = $this->form->field( 'id' )->value( );
+		$name = $this->form->field( 'display-name' )->value( );
+		$emailField = $this->form->field( 'email' );
+		$email = $emailField->value( );
 
-		$nameColumn = HTML::make( 'td' );
-		if ( $user->user_display_name !== null ) {
-			$nameColumn->appendText( $user->user_display_name );
-		} else {
-			$nameColumn->appendElement( HTML::make( 'em' )->appendText( 'N/A' ) );
+		$error = Loader::DAO( 'users' )->modify( $id , $email , $name );
+		switch ( $error ) {
+
+			case 0:
+				return true;
+
+			case 1:
+				$email->putError( 'Duplicate address.' );
+				break;
+
+			default:
+				$email->putError( 'An unknown error occurred (' . $error . ')' );
+				break;
 		}
-		$row->appendElement( $nameColumn );
 
-		return $row;
+		return null;
+	}
+}
+
+
+class Ctrl_UsersSetPassword
+	extends Controller
+	implements FormAware
+{
+	private $form;
+
+
+	public function setForm( Form $form )
+	{
+		$this->form = $form;
+	}
+
+
+	public function handle( Page $page )
+	{
+		$p1 = $this->form->field( 'pass' );
+		$p2 = $this->form->field( 'pass2' );
+		if ( $p1->value( ) != $p2->value( ) ) {
+			$p1->putError( 'Passwords did not match.' );
+			return null;
+		}
+
+		$id = $this->form->field( 'id' )->value( );
+		Loader::DAO( 'users' )->setPassword( $id , $p1->value( ) );
+		return true;
 	}
 }