108 lines
2.7 KiB
C#
108 lines
2.7 KiB
C#
/*
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* Copyright (c) 2023 ETH Zürich, Educational Development and Technology (LET)
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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 System.Net.Http;
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using SafeExamBrowser.Logging.Contracts;
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using SafeExamBrowser.Proctoring.ScreenProctoring.Data;
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using SafeExamBrowser.Proctoring.ScreenProctoring.Imaging;
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using SafeExamBrowser.Proctoring.ScreenProctoring.Service.Requests;
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namespace SafeExamBrowser.Proctoring.ScreenProctoring.Service
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{
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internal class ServiceProxy
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{
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private readonly Api api;
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private readonly ILogger logger;
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private readonly Parser parser;
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private HttpClient httpClient;
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internal bool IsConnected => SessionId != default;
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internal string SessionId { get; set; }
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internal ServiceProxy(ILogger logger)
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{
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this.api = new Api();
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this.logger = logger;
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this.parser = new Parser(logger);
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}
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internal ServiceResponse Connect(string serviceUrl)
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{
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httpClient = new HttpClient { BaseAddress = new Uri(serviceUrl) };
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var request = new OAuth2TokenRequest(api, httpClient, logger, parser);
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var success = request.TryExecute(out var message);
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if (success)
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{
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logger.Info("Successfully connected to service.");
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}
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else
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{
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logger.Error("Failed to connect to service!");
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}
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return new ServiceResponse(success, message);
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}
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internal ServiceResponse CreateSession(string groupId)
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{
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var request = new CreateSessionRequest(api, httpClient, logger, parser);
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var success = request.TryExecute(groupId, out var message, out var sessionId);
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if (success)
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{
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SessionId = sessionId;
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logger.Info("Successfully created session.");
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}
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else
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{
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logger.Error("Failed to create session!");
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}
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return new ServiceResponse(success, message);
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}
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internal ServiceResponse Send(Metadata metadata, ScreenShot screenShot)
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{
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var request = new ScreenShotRequest(api, httpClient, logger, parser);
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var success = request.TryExecute(metadata, screenShot, SessionId, out var message);
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if (success)
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{
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logger.Info($"Successfully sent screen shot ({screenShot}).");
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}
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else
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{
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logger.Error("Failed to send screen shot!");
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}
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return new ServiceResponse(success, message);
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}
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internal ServiceResponse TerminateSession()
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{
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var request = new TerminateSessionRequest(api, httpClient, logger, parser);
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var success = request.TryExecute(SessionId, out var message);
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if (success)
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{
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SessionId = default;
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logger.Info("Successfully terminated session.");
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}
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else
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{
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logger.Error("Failed to terminate session!");
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}
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return new ServiceResponse(success, message);
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}
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}
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}
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