129 lines
3.8 KiB
C#
129 lines
3.8 KiB
C#
/*
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* Copyright (c) 2025 ETH Zürich, IT Services
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using SafeExamBrowser.Communication.Contracts.Data;
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using SafeExamBrowser.Configuration.Contracts;
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using SafeExamBrowser.Configuration.Contracts.Cryptography;
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using SafeExamBrowser.I18n.Contracts;
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using SafeExamBrowser.Runtime.Communication;
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using SafeExamBrowser.Settings;
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using SafeExamBrowser.UserInterface.Contracts;
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namespace SafeExamBrowser.Runtime.Operations.Session
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{
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internal abstract class ConfigurationBaseOperation : SessionOperation
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{
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protected readonly IConfigurationRepository repository;
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protected readonly IUserInterfaceFactory uiFactory;
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protected string AppDataFilePath => Context.Next.AppConfig.AppDataFilePath;
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protected string ProgramDataFilePath => Context.Next.AppConfig.ProgramDataFilePath;
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public ConfigurationBaseOperation(
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Dependencies dependencies,
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IConfigurationRepository repository,
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IUserInterfaceFactory uiFactory) : base(dependencies)
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{
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this.repository = repository;
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this.uiFactory = uiFactory;
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}
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protected LoadStatus? TryLoadSettings(Uri uri, UriSource source, out PasswordParameters passwordParams, out AppSettings settings, string currentPassword = default)
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{
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passwordParams = new PasswordParameters { Password = string.Empty, IsHash = true };
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var status = repository.TryLoadSettings(uri, out settings, passwordParams);
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if (status == LoadStatus.PasswordNeeded && currentPassword != default)
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{
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passwordParams.Password = currentPassword;
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passwordParams.IsHash = true;
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status = repository.TryLoadSettings(uri, out settings, passwordParams);
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}
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for (var attempts = 0; attempts < 5 && status == LoadStatus.PasswordNeeded; attempts++)
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{
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var isLocalConfig = source == UriSource.AppData || source == UriSource.ProgramData;
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var purpose = isLocalConfig ? PasswordRequestPurpose.LocalSettings : PasswordRequestPurpose.Settings;
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var success = TryGetPassword(purpose, out var password);
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if (success)
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{
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passwordParams.Password = password;
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passwordParams.IsHash = false;
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}
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else
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{
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return null;
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}
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status = repository.TryLoadSettings(uri, out settings, passwordParams);
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}
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return status;
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}
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protected bool TryGetPassword(PasswordRequestPurpose purpose, out string password)
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{
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var success = false;
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if (ClientBridge.IsRequired())
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{
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ClientBridge.TryGetPassword(purpose, out password);
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}
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else
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{
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var (message, title) = GetTextKeysFor(purpose);
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var dialog = uiFactory.CreatePasswordDialog(Text.Get(message), Text.Get(title));
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var result = dialog.Show(RuntimeWindow);
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password = result.Password;
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success = result.Success;
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}
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return success;
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}
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private (TextKey message, TextKey title) GetTextKeysFor(PasswordRequestPurpose purpose)
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{
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var message = default(TextKey);
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var title = default(TextKey);
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switch (purpose)
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{
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case PasswordRequestPurpose.LocalAdministrator:
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message = TextKey.PasswordDialog_LocalAdminPasswordRequired;
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title = TextKey.PasswordDialog_LocalAdminPasswordRequiredTitle;
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break;
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case PasswordRequestPurpose.LocalSettings:
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message = TextKey.PasswordDialog_LocalSettingsPasswordRequired;
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title = TextKey.PasswordDialog_LocalSettingsPasswordRequiredTitle;
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break;
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case PasswordRequestPurpose.Settings:
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message = TextKey.PasswordDialog_SettingsPasswordRequired;
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title = TextKey.PasswordDialog_SettingsPasswordRequiredTitle;
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break;
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}
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return (message, title);
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}
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protected enum UriSource
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{
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Undefined,
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AppData,
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CommandLine,
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ProgramData,
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Reconfiguration,
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Server
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}
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}
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}
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