Initial commit

.gitignore

+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- Backup*.rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+appsettings.Development.json
+wwwroot/appsettings.Development.json
+
+.idea
\ No newline at end of file

API/APIBase.cs

+namespace Group17PortalWasm.API;
+
+public interface IAPIBase
+{
+}
+
+public interface IAuthBase
+{
+}
+
+public interface IProfileBase
+{
+}
+
+public interface ITVBase
+{
+}
+
+public interface IReviewsRatingsBase
+{
+}
\ No newline at end of file

API/Base/Group17APIHttpMessageHandler.cs

+namespace Group17PortalWasm.API.Base;
+
+using System.Net;
+using System.Net.Http.Headers;
+using Blazored.LocalStorage;
+using Group17.Auth;
+using Helpers;
+using Microsoft.AspNetCore.Components.Authorization;
+using Polly;
+using Polly.Retry;
+using ApiException = Exception.APIException;
+using Exception = System.Exception;
+
+public class Group17APIHttpMessageHandler : DelegatingHandler
+{
+    private readonly AuthenticationStateProvider _authenticationStateProvider;
+
+    private readonly IHttpClientFactory _httpClientFactory;
+    private AsyncRetryPolicy? _retryPolicy;
+    private AsyncRetryPolicy<HttpResponseMessage>? _unauthorizedPolicy;
+
+    public Group17APIHttpMessageHandler(IHttpClientFactory httpClientFactory, ILocalStorageService localStorageService,
+        AuthenticationStateProvider authenticationStateProvider)
+    {
+        _httpClientFactory = httpClientFactory;
+        _authenticationStateProvider = authenticationStateProvider;
+    }
+
+    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request,
+        CancellationToken cancellationToken)
+    {
+        if (_authenticationStateProvider == null)
+            throw new Exception("AuthenticationStateProvider is null.");
+
+        try
+        {
+            var authenticationState = await ((CustomAuthenticationStateProvider) _authenticationStateProvider)
+                .GetAuthenticationStateAsync();
+            var user = authenticationState.User;
+            var bearerToken = user.Claims.FirstOrDefault(c => c.Type == Constants.Claims.AccessToken)?.Value;
+            var refreshToken = user.Claims.FirstOrDefault(c => c.Type == Constants.Claims.RefreshToken)?.Value;
+
+            var context = new Context();
+            if (!string.IsNullOrWhiteSpace(refreshToken))
+                context.WithRefreshToken(refreshToken);
+
+            var httpClient = _httpClientFactory.CreateClient(Constants.HttpClientNames.ApiClient);
+            httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", bearerToken);
+            context.WithClient(new AuthClient(httpClient));
+
+            if (!string.IsNullOrWhiteSpace(bearerToken))
+                request.Headers.Add("Authorization", $"Bearer {bearerToken}");
+
+            _unauthorizedPolicy ??= Policy
+                .HandleResult<HttpResponseMessage>(ex => ex.StatusCode == HttpStatusCode.Unauthorized)
+                .RetryAsync(1, async (_, __, context) =>
+                {
+                    var newAccessToken = await AttemptRefreshTokenAsync(context);
+                    context["AuthToken"] = newAccessToken;
+                });
+
+            _retryPolicy ??= Policy.Handle<HttpRequestException>().RetryAsync(1);
+
+            var result = await _unauthorizedPolicy.WrapAsync(_retryPolicy).ExecuteAsync(async context =>
+            {
+                if (!context.TryGetValue("AuthToken", out var value))
+                    return await base.SendAsync(request, cancellationToken);
+                var newAccessToken = Convert.ToString(value);
+                request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", newAccessToken);
+
+                return await base.SendAsync(request, cancellationToken);
+            }, contextData: context);
+
+            if (result.StatusCode == HttpStatusCode.Forbidden)
+                throw new Exception("Forbidden.");
+            return result;
+        }
+        catch (ApiException ex)
+        {
+            throw new Exception(ex.Message);
+        }
+    }
+
+    private async Task<string> AttemptRefreshTokenAsync(Context context)
+    {
+        var authClient = context.GetAuthClient();
+        var refreshToken = context.GetRefreshToken();
+
+        if (authClient == null || string.IsNullOrEmpty(refreshToken))
+            throw new Exception("Cannot retrieve refresh token.");
+        try
+        {
+            var tokenResponse =
+                await authClient.RefreshTokenAsync(new RefreshTokenRequestDTO {RefreshToken = refreshToken});
+
+            if (tokenResponse.Success)
+            {
+                await ((CustomAuthenticationStateProvider) _authenticationStateProvider).SetAuthenticationStateAsync(
+                    tokenResponse.Data);
+                return tokenResponse.Data.AccessToken;
+            }
+        }
+        catch (APIException ex)
+        {
+            await ((CustomAuthenticationStateProvider) _authenticationStateProvider).ClearAuthenticationStateAsync();
+            throw new Exception(ex.Message);
+        }
+
+        throw new Exception("Cannot retrieve refresh token.");
+    }
+}
\ No newline at end of file

API/Exception/APIException.cs

+namespace Group17PortalWasm.API.Exception;
+
+using Exception = System.Exception;
+
+public class APIException : Exception
+{
+    public APIException(string message, int statusCode, string response,
+        IReadOnlyDictionary<string, IEnumerable<string>> headers, Exception innerException) : base(
+        message + "\n\nStatus: " + statusCode + "\nResponse: \n" + response, innerException)
+    {
+        StatusCode = statusCode;
+        Response = response;
+        Headers = headers;
+    }
+
+    public int StatusCode { get; }
+
+    public string Response { get; private set; }
+
+    public IReadOnlyDictionary<string, IEnumerable<string>> Headers { get; }
+
+    public override string ToString()
+    {
+        if (!Response.Contains("System.Exception"))
+            return Response;
+        Response = Response.Replace("System.Exception: ", "");
+        var index = Response.IndexOf("\r\n", StringComparison.Ordinal);
+        if (index > 0)
+            Response = Response[..index];
+        return Response;
+    }
+}
\ No newline at end of file

App.razor

+<Router AppAssembly="@typeof(App).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)"/>
+        <FocusOnNavigate RouteData="@routeData" Selector="h1"/>
+    </Found>
+    <NotFound>
+        <PageTitle>Not found</PageTitle>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p role="alert">Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>
\ No newline at end of file