From 5707f5a2d46064b0412407586b4bfac850a7cd71 Mon Sep 17 00:00:00 2001
From: taywon18 <thespartan18@hotmail.fr>
Date: Sun, 22 Sep 2024 11:48:59 +0200
Subject: [PATCH] added basic functionalities (login, create/del/rename pages)

---
 Tagger/Configuration.cs                   |  12 ++
 Tagger/Pages/Index.razor                  |   8 +-
 Tagger/Pages/Login.razor                  |  60 ++++++++
 Tagger/Pages/Page.razor                   |  30 +++-
 Tagger/Pages/PageList.razor               |  48 +++++--
 Tagger/Program.cs                         |  27 +++-
 Tagger/RunEnv/Pages/Tulipe                |   0
 Tagger/RunEnv/Pages/pommier               |   1 +
 Tagger/Service/CustomAuthStateProvider.cs |  38 +++++
 Tagger/Service/UserManager.cs             | 160 +++++++++++++++++++++-
 Tagger/Shared/NavMenu.razor               |   9 +-
 Tagger/Tagger.csproj                      |  12 +-
 12 files changed, 374 insertions(+), 31 deletions(-)
 create mode 100644 Tagger/Configuration.cs
 create mode 100644 Tagger/Pages/Login.razor
 create mode 100644 Tagger/RunEnv/Pages/Tulipe
 create mode 100644 Tagger/RunEnv/Pages/pommier
 create mode 100644 Tagger/Service/CustomAuthStateProvider.cs

diff --git a/Tagger/Configuration.cs b/Tagger/Configuration.cs
new file mode 100644
index 0000000..490170d
--- /dev/null
+++ b/Tagger/Configuration.cs
@@ -0,0 +1,12 @@
+namespace Tagger;
+
+public class User
+{
+    public string Name { get; set; } = "";
+    public string Password { get; set; } = "";
+}
+
+public class Configuration
+{
+    public List<User> Users { get; set; } = new();
+}
diff --git a/Tagger/Pages/Index.razor b/Tagger/Pages/Index.razor
index 46c13cf..c477a96 100644
--- a/Tagger/Pages/Index.razor
+++ b/Tagger/Pages/Index.razor
@@ -1,12 +1,8 @@
 @page "/"
 
-<PageTitle>Index</PageTitle>
+<PageTitle>Tagger App</PageTitle>
 
-<h1>Hello, world!</h1>
-
-Welcome to your new appss.
-
-<SurveyPrompt Title="How is Blazor working for you?" />
+<h1>Tagger App</h1>
 
 @code{
 
diff --git a/Tagger/Pages/Login.razor b/Tagger/Pages/Login.razor
new file mode 100644
index 0000000..64c0729
--- /dev/null
+++ b/Tagger/Pages/Login.razor
@@ -0,0 +1,60 @@
+@page "/login"
+@inject UserManager Users;
+@inject IHttpContextAccessor httpContextAccessor;
+@inject NavigationManager NavManager;
+@inject IHostEnvironmentAuthenticationStateProvider HostAuthentication;
+@inject AuthenticationStateProvider AuthenticationStateProvider;
+
+<h3>login</h3>
+
+@if(LoggedIn)
+{
+    <Button @onclick=Logout>Déconnexion</Button>
+}
+else
+{
+    <InputText @bind-Value=Username placeholder="Identifiant" />
+    <InputText @bind-Value=Password type="password" placeholder="Mot de passe"/>
+    <Button @onclick=TryLogin>Connexion</Button>
+}
+
+
+
+@code {
+
+    public string Username { get; set; } = "";
+    public string Password { get; set; } = "";
+
+    public bool LoggedIn { get; set; } = false;
+
+    protected async override Task OnInitializedAsync()
+    {
+        LoggedIn = await Users.IsLogged();
+        await base.OnInitializedAsync();
+    }
+
+    protected async override Task OnAfterRenderAsync(bool firstRender)
+    {
+        //if(firstRender)
+            
+
+        await base.OnAfterRenderAsync(firstRender);
+    }
+
+    public async Task TryLogin()
+    {
+        if (await Users.TryLogin(Username, Password))
+        {
+            LoggedIn = await Users.IsLogged();
+            StateHasChanged();
+            return;
+        }
+    }
+
+    public async Task Logout()
+    {
+        await Users.Logout();
+        LoggedIn = await Users.IsLogged();
+        StateHasChanged();
+    }
+}
diff --git a/Tagger/Pages/Page.razor b/Tagger/Pages/Page.razor
index 0656fe5..6547d9f 100644
--- a/Tagger/Pages/Page.razor
+++ b/Tagger/Pages/Page.razor
@@ -1,6 +1,9 @@
 @page "/page/{*Route}"
 @inject PageProvider Pages;
+@inject UserManager Users;
 @inject NavigationManager NavManager;
+@inject IJSRuntime JS
+
 
 @if (CurrentPage is null)
 {
@@ -11,28 +14,29 @@ else
     @((MarkupString)markdownHtml)
 
     <hr />
-
-    <div hidden=@(!Editing)>
+    <div hidden=@(!LoggedIn || !Editing)>
         <MarkdownEditor @bind-Value="@markdownValue" ValueHTMLChanged="@OnMarkdownValueHTMLChanged" />
         <button @onclick="Save">Sauvegarder</button>
         <button @onclick="Delete">Supprimer</button>
     </div>
 
-    <div hidden=@Editing>
+    <div hidden=@(!LoggedIn ||Editing)>
         <button @onclick="() => {Editing = true;}">Editer</button>
-        <button>Renommer</button>
+        <button @onclick=Rename>Renommer</button>
     </div>
-
 }
 
 @code {
     [Parameter]
     public string? Route { get; set; }
 
+    public bool LoggedIn { get; set; }
+
     string markdownValue = "";
     string markdownHtml ="";
     bool Editing = false;
 
+
     ElementReference Editor;
 
     public MarkdownPage? CurrentPage { get; set; }
@@ -49,6 +53,7 @@ else
             return;
 
         markdownValue = CurrentPage.Content;
+        LoggedIn = await Users.IsLogged();
         StateHasChanged();
     }
 
@@ -67,6 +72,21 @@ else
         Pages.Save(CurrentPage);
     }
 
+    async Task Rename()
+    {
+        if (CurrentPage is null)
+            return;
+
+        var val = await JS.InvokeAsync<string>("prompt", new[] { "Veuillez indiquer le nouveau chemin de la page" });
+        if (val is null)
+            return;
+
+        Pages.Delete(CurrentPage.Title);
+        CurrentPage.Title = val;
+        Pages.Save(CurrentPage);
+        NavManager.NavigateTo("/page");
+    }
+
     void Delete()
     {
         if (CurrentPage is null)
diff --git a/Tagger/Pages/PageList.razor b/Tagger/Pages/PageList.razor
index 25d0174..87f8b9f 100644
--- a/Tagger/Pages/PageList.razor
+++ b/Tagger/Pages/PageList.razor
@@ -1,31 +1,63 @@
 @page "/page"
 
 @inject PageProvider Pages;
+@inject UserManager Users;
+@inject IJSRuntime JS
 
-@if (Paths is null)
+@if(!IsLogged)
+{
+    <p>Identification requise</p>
+}
+else if (Paths is null)
 {
     <p>Chargement...</p>
 }
 else
 {
-    @foreach(var p in Paths)
+    @if(IsLogged)
     {
-        <a href="/page/@p">@p</a>
-    }
+        <button @onclick=CreatePage >Ajouter une page</button>
+    }    
 
-    <button>Ajouter une page</button>
+    <ul>
+        @foreach (var p in Paths)
+        {
+            <li><a href="/page/@p">@p</a></li>
+        }
+    </ul>    
 }
 
 
 
 @code {
     public string[]? Paths { get; set; } = null;
-    
+    public bool IsLogged = false;
 
-    protected override void OnInitialized()
+
+    protected override async void OnInitialized()
     {
-        Paths = Pages.List().ToArray();
         base.OnInitialized();
+        await Flush();
     }
 
+    public async Task Flush()
+    {
+        Paths = Pages.List().ToArray();
+        IsLogged = await Users.IsLogged();
+        StateHasChanged();
+    }
+
+    public async Task CreatePage()
+    {
+        var val = await JS.InvokeAsync<string>("prompt", new[] { "Veuillez indiquer chemin de la page" });
+        if (val is null)
+            return;
+
+        Pages.Save(new MarkdownPage
+        {
+            Title = val,
+            Content = ""
+        });
+        await Flush();
+    }
 }
\ No newline at end of file
diff --git a/Tagger/Program.cs b/Tagger/Program.cs
index 2cbaa90..64dcb07 100644
--- a/Tagger/Program.cs
+++ b/Tagger/Program.cs
@@ -1,13 +1,36 @@
-using Microsoft.AspNetCore.Components;
-using Microsoft.AspNetCore.Components.Web;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Components.Server;
 using Tagger.Service;
 
 var builder = WebApplication.CreateBuilder(args);
 
+
+builder.Configuration.AddJsonFile("config.json", true);
+
 // Add services to the container.
 builder.Services.AddRazorPages();
 builder.Services.AddServerSideBlazor();
+builder.Services.AddHttpContextAccessor();
 builder.Services.AddSingleton<PageProvider>();
+builder.Services.AddScoped<UserManager>();
+
+builder.Services.AddScoped<IHostEnvironmentAuthenticationStateProvider>(sp =>
+    (ServerAuthenticationStateProvider)sp.GetRequiredService<AuthenticationStateProvider>()
+);
+
+
+builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
+    .AddCookie(options =>
+    {
+        options.Cookie.Name = "auth_token";
+        options.LoginPath = "/login";
+        options.Cookie.MaxAge = TimeSpan.FromHours(1);
+    });
+builder.Services.AddAuthorization();
+builder.Services.AddCascadingAuthenticationState();
+
+
 
 var app = builder.Build();
 
diff --git a/Tagger/RunEnv/Pages/Tulipe b/Tagger/RunEnv/Pages/Tulipe
new file mode 100644
index 0000000..e69de29
diff --git a/Tagger/RunEnv/Pages/pommier b/Tagger/RunEnv/Pages/pommier
new file mode 100644
index 0000000..ff1beaa
--- /dev/null
+++ b/Tagger/RunEnv/Pages/pommier
@@ -0,0 +1 @@
+# turlutu
\ No newline at end of file
diff --git a/Tagger/Service/CustomAuthStateProvider.cs b/Tagger/Service/CustomAuthStateProvider.cs
new file mode 100644
index 0000000..e14bf28
--- /dev/null
+++ b/Tagger/Service/CustomAuthStateProvider.cs
@@ -0,0 +1,38 @@
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Components.Server.ProtectedBrowserStorage;
+using System.Security.Claims;
+
+namespace Tagger.Service;
+
+public class CustomAuthStateProvider : AuthenticationStateProvider
+{
+    private readonly ProtectedSessionStorage SessionStorage;
+    private ClaimsPrincipal Anonymous = new(new ClaimsIdentity());
+
+    public CustomAuthStateProvider(ProtectedSessionStorage sessionStorage)
+    {
+        SessionStorage = sessionStorage;
+    }
+
+    public override async Task<AuthenticationState> GetAuthenticationStateAsync()
+    {
+        var userSessionStorageResult = await SessionStorage.GetAsync<User>(nameof(User));
+        
+        if(!userSessionStorageResult.Success || userSessionStorageResult.Value is null)
+            return new AuthenticationState(Anonymous);
+
+        var claimPrincipal = new ClaimsPrincipal(new ClaimsIdentity(new List<Claim>
+        {
+            new Claim(ClaimTypes.Name, userSessionStorageResult.Value.Name)
+        }));
+        return new(claimPrincipal);
+    }
+
+    public async Task SetSession(User? user)
+    {
+        if(user is null)
+            await SessionStorage.DeleteAsync(nameof(User));
+        else
+            await SessionStorage.SetAsync(nameof(User), user);
+    }
+}
diff --git a/Tagger/Service/UserManager.cs b/Tagger/Service/UserManager.cs
index f370c53..c477016 100644
--- a/Tagger/Service/UserManager.cs
+++ b/Tagger/Service/UserManager.cs
@@ -1,14 +1,166 @@
 using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Authentication;
+using System.Net.NetworkInformation;
+using Tagger.Pages;
+using System.Security.Claims;
+using Microsoft.AspNetCore.Components.Server.ProtectedBrowserStorage;
+using System.ComponentModel;
 
 namespace Tagger.Service;
 
 public class UserManager
 {
-    public async Task<bool> IsLogged(AuthenticationStateProvider  stateProvider)
+    Configuration Conf;
+    ProtectedLocalStorage ProtectedLocalStorage;
+
+    public UserManager(IConfiguration configuration, ProtectedLocalStorage storage)
     {
-        var authState = await stateProvider.GetAuthenticationStateAsync();
-        var user = authState.User;
-        return (user.Identity is not null && user.Identity.IsAuthenticated);
+        Conf = configuration.Get<Configuration>() ?? new();
+        ProtectedLocalStorage = storage;
     }
 
+    public async Task<User?> CurrentUser()
+    {
+        ProtectedBrowserStorageResult<User> ret;
+
+        try
+        {
+            ret = await ProtectedLocalStorage.GetAsync<User>("logged");
+        }
+        catch(InvalidOperationException ex) // statically rendered, not logged :)
+        {
+            return null;
+        }
+        
+        if (!ret.Success)
+            return null;
+
+        return ret.Value;
+    }
+
+    public async Task<bool> IsLogged()
+    {
+        return await CurrentUser() is not null;
+    }
+
+    public async Task Logout()
+    {
+        await ProtectedLocalStorage.DeleteAsync("logged");
+    }
+
+
+    public async Task Login(User user)
+    {
+        await ProtectedLocalStorage.SetAsync("logged", user);
+    }
+
+    public async Task<bool> TryLogin(string username, string password)
+    {
+        await Logout();
+
+        foreach (var user in Conf.Users)
+            if (user.Name.ToLower() == username.ToLower())
+            {
+                if (user.Password != password)
+                    return false;
+
+                await Login(user);
+                return true;
+            }
+
+        return false;
+    }
+
+    /*public bool IsLogged(HttpContext state)
+    {
+        if (state.User is null)
+            return false;
+
+        if (state.User.Identity is null)
+            return false;
+
+        return state.User.Identity.IsAuthenticated;
+    }
+
+    public async Task<bool> IsLogged(AuthenticationStateProvider state)
+    {
+        AuthenticationState authState = await state.GetAuthenticationStateAsync();
+
+        if (authState.User is null)
+            return false;
+
+        if (authState.User.Identity is null)
+            return false;
+
+        return authState.User.Identity.IsAuthenticated;
+    }
+
+    public async Task<bool> TryLogin(HttpContext state, string username, string password)
+    {
+        //await Logout(state);
+
+        foreach(var user in Conf.Users)
+            if(user.Name.ToLower() == username.ToLower())
+            {
+                if (user.Password != password)
+                    return false;
+
+                await Login(state, user);
+                return true;
+            }
+
+        return false;
+    }
+
+    public async Task<bool> TryLogin(IHostEnvironmentAuthenticationStateProvider state, string username, string password)
+    {
+        //todo: Logout
+
+        foreach (var user in Conf.Users)
+            if (user.Name.ToLower() == username.ToLower())
+            {
+                if (user.Password != password)
+                    return false;
+
+                await Login(state, user);
+                return true;
+            }
+
+        return false;
+    }
+
+    public async Task Login(IHostEnvironmentAuthenticationStateProvider state, User user)
+    {
+        var claims = new ClaimsPrincipal(new ClaimsIdentity[]
+        {
+            new ClaimsIdentity(new Claim[]
+            {
+                new(ClaimTypes.Name, user.Name)
+            })
+        });
+        state.SetAuthenticationState(
+            Task.FromResult(
+                new AuthenticationState(claims)
+                )
+            );
+    }
+
+    private async Task Login(HttpContext state, User user)
+    {
+        await state.SignInAsync( new ClaimsPrincipal(new ClaimsIdentity[]
+        {
+            new ClaimsIdentity(new Claim[]
+            {
+                new(ClaimTypes.Name, user.Name)
+            })
+        }));
+    }    
+    
+    public async Task Logout(HttpContext state)
+    {
+        if (IsLogged(state))
+            await state.SignOutAsync();
+    }*/
+
+
 }
diff --git a/Tagger/Shared/NavMenu.razor b/Tagger/Shared/NavMenu.razor
index c59fd69..4a52ad1 100644
--- a/Tagger/Shared/NavMenu.razor
+++ b/Tagger/Shared/NavMenu.razor
@@ -14,7 +14,7 @@
                 <span class="oi oi-home" aria-hidden="true"></span> Home
             </NavLink>
         </div>
-        <div class="nav-item px-3">
+        <!--<div class="nav-item px-3">
             <NavLink class="nav-link" href="counter">
                 <span class="oi oi-plus" aria-hidden="true"></span> Counter
             </NavLink>
@@ -23,11 +23,16 @@
             <NavLink class="nav-link" href="fetchdata">
                 <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data
             </NavLink>
-        </div>
+        </div> -->
         <div class="nav-item px-3">
             <NavLink class="nav-link" href="page">
                 <span class="oi oi-list-rich" aria-hidden="true"></span> Liste des pages
             </NavLink>
+        </div> 
+        <div class="nav-item px-3">
+            <NavLink class="nav-link" href="login">
+                <span class="oi oi-list-rich" aria-hidden="true"></span> Login/Compte
+            </NavLink>
         </div>
     </nav>
 </div>
diff --git a/Tagger/Tagger.csproj b/Tagger/Tagger.csproj
index 94965df..d0b6100 100644
--- a/Tagger/Tagger.csproj
+++ b/Tagger/Tagger.csproj
@@ -8,14 +8,18 @@
     <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Content Remove="RunEnv\config.json" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="RunEnv\config.json" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.20.1" />
     <PackageReference Include="PSC.Blazor.Components.Common" Version="6.0.4" />
     <PackageReference Include="PSC.Blazor.Components.MarkdownEditor" Version="8.0.4" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="RunEnv\" />
-  </ItemGroup>
-
 </Project>