mirror of
https://github.com/danieleteti/delphimvcframework.git
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136 lines
4.6 KiB
ObjectPascal
136 lines
4.6 KiB
ObjectPascal
// ***************************************************************************
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//
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// Delphi MVC Framework
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//
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// Copyright (c) 2010-2022 Daniele Teti and the DMVCFramework Team
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//
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// https://github.com/danieleteti/delphimvcframework
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//
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// ***************************************************************************
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// *************************************************************************** }
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unit AuthHandlerU;
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interface
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uses
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MVCFramework.Commons, MVCFramework, System.Generics.Collections;
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type
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TCustomAuth = class(TInterfacedObject, IMVCAuthenticationHandler)
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public
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// called at each request to know if the request requires an authentication
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procedure OnRequest(const AContext: TWebContext; const ControllerQualifiedClassName: string;
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const ActionName: string; var AuthenticationRequired: Boolean);
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// if authentication is required, this method must execute the user authentication
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procedure OnAuthentication(const AContext: TWebContext; const UserName: string; const Password: string;
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UserRoles: TList<System.string>;
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var IsValid: Boolean;
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const SessionData: System.Generics.Collections.TDictionary<System.string, System.string>);
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// if authenticated, this method defines the user roles
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procedure OnAuthorization(const AContext: TWebContext; UserRoles: System.Generics.Collections.TList<System.string>;
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const ControllerQualifiedClassName: string; const ActionName: string;
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var IsAuthorized: Boolean);
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end;
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implementation
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uses
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System.SysUtils;
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{ TCustomAuth }
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procedure TCustomAuth.OnAuthentication(const AContext: TWebContext; const UserName: string; const Password: string;
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UserRoles: TList<System.string>;
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var IsValid: Boolean;
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const SessionData: System.Generics.Collections.TDictionary<System.string, System.string>);
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begin
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{
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Here you should do the actual query on database or other "users store" to
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check if the user identified by UserName and Password is a valid user.
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You have to fill also the UserRoles list with the roles of the user.
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Moreover additional user properties can be added in the SessionData dictionary
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}
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// We defined 3 statc users here: admin, user1, user2
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IsValid := False;
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if (UserName = 'admin') and (Password = 'adminpass') then
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begin
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IsValid := True;
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UserRoles.Add('admin');
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end
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else if (UserName = 'user1') and (Password = 'user1pass') then
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begin
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IsValid := True;
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UserRoles.Add('role1');
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end
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else if (UserName = 'user2') and (Password = 'user2pass') then
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begin
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IsValid := True;
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UserRoles.Add('role2');
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end;
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// if you dont have "roles" concept in your system, you can also avoid to use them and
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// sets only IsValid := True;
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end;
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procedure TCustomAuth.OnAuthorization(const AContext: TWebContext; UserRoles: System.Generics.Collections.TList<System.string>;
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const ControllerQualifiedClassName: string; const ActionName: string;
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var IsAuthorized: Boolean);
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begin
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if ControllerQualifiedClassName = 'PrivateControllerU.TPrivateController' then
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begin
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IsAuthorized := UserRoles.Contains('admin');
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if not IsAuthorized then
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IsAuthorized := (UserRoles.Contains('role1')) and (ActionName = 'OnlyRole1');
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if not IsAuthorized then
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IsAuthorized := (UserRoles.Contains('role2')) and (ActionName = 'OnlyRole2');
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end
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else
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begin
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// You can always navigate in the public section of API
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IsAuthorized := True;
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end;
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end;
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procedure TCustomAuth.OnRequest(const AContext: TWebContext; const ControllerQualifiedClassName: string;
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const ActionName: string; var AuthenticationRequired: Boolean);
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begin
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{
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This is the the auth schema implemented: All the actions present in the
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'PrivateControllerU.TPrivateController' requires authentication but
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the action 'PublicAction'. In other words, 'PublicAction' can be called also
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without authentication.
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}
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AuthenticationRequired :=
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ControllerQualifiedClassName = 'PrivateControllerU.TPrivateController';
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if AuthenticationRequired then
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begin
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if ActionName = 'PublicAction' then
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begin
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AuthenticationRequired := False;
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end;
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end;
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end;
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end.
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