Merge branch 'discovery-no-https' of https://github.com/9p4/jellyfin-plugin-sso into discovery-no-https

feat: allow configuration of preferred username claim

.github/workflows/commit-lint.yml

@@ -0,0 +1,11 @@
+name: Lint Commit Messages
+on: [pull_request, push]
+
+jobs:
+  commitlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: wagoid/commitlint-github-action@4caf21aed4a778f940d0b17eb109942ef167bb27

README.md

@@ -192,10 +192,12 @@ These all require authorization. Append an API key to the end of the request: `c
   - `enableFolderRoles`: boolean. Determines if role-based folder access should be used.
   - `folderRoleMapping`: object in the format "role": string and "folders": array of strings. The user with this role will have access to the following folders if `enableFolderRoles` is enabled. To get the IDs of the folders, GET the `/Library/MediaFolders` URL with an API key. Look for the `Id` attribute.
   - `roleClaim`: string. This is the value in the OpenID response to check for roles. For Keycloak, it is `realm_access.roles` by default. The first element is the claim type, the subsequent values are to parse the JSON of the claim value. Use a "\\." to denote a literal ".". This expects a list of strings from the OIDC server.
-  - `oidScopes` : array of strings. each containing an additional scope name to include in the OIDC request.
+  - `oidScopes` : array of strings. Each contains an additional scope name to include in the OIDC request.
     - For some OIDC providers (For example, [authelia](https://github.com/9p4/jellyfin-plugin-sso/issues/23#issuecomment-1112237616)), additional scopes may be required in order to validate group membership in role claim.
     - Leave empty to only request the default scopes.
   - `defaultProvider`: string. The set provider then gets assigned to the user after they have logged in. If it is not set, nothing is changed. With this, a user can login with SSO but is still able to log in via other providers later. See the `Unregister` endpoint.
+  - `defaultUsernameClaim`: string. The provider will use the claim to create the users' usernames. If not set, it fallbacks to `preferred_username`.
+  - `requireHttps`: boolean. Determines whether the OpenID discovery endpoint requires HTTP. It is advised NOT to set this to false. If not set, it fallbacks to `true`.
 - GET `OID/Del/PROVIDER_NAME`: This removes a configuration for OpenID for a given provider name.
 - GET `OID/Get`: Lists the configurations currently available.
 - GET `OID/States`: Lists currently active OpenID flows in progress.

SSO-Auth/Api/SSOController.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net.Mime;
+using System.Security.Cryptography;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using IdentityModel.OidcClient;
@@ -13,6 +14,7 @@ using MediaBrowser.Controller.Authentication;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Net;
 using MediaBrowser.Controller.Session;
+using MediaBrowser.Model.Cryptography;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
@@ -34,6 +36,7 @@ public class SSOController : ControllerBase
     private readonly ISessionManager _sessionManager;
     private readonly IAuthorizationContext _authContext;
     private readonly ILogger<SSOController> _logger;
+    private readonly ICryptoProvider _cryptoProvider;
     private static readonly IDictionary<string, TimedAuthorizeState> StateManager = new Dictionary<string, TimedAuthorizeState>();
 
     /// <summary>
@@ -43,11 +46,13 @@ public class SSOController : ControllerBase
     /// <param name="sessionManager">Instance of the <see cref="ISessionManager"/> interface.</param>
     /// <param name="authContext">Instance of the <see cref="IAuthorizationContext"/> interface.</param>
     /// <param name="userManager">Instance of the <see cref="IUserManager"/> interface.</param>
-    public SSOController(ILogger<SSOController> logger, ISessionManager sessionManager, IUserManager userManager, IAuthorizationContext authContext)
+    /// <param name="cryptoProvider">Instance of the <see cref="ICryptoProvider"/> interface.</param>
+    public SSOController(ILogger<SSOController> logger, ISessionManager sessionManager, IUserManager userManager, IAuthorizationContext authContext, ICryptoProvider cryptoProvider)
     {
         _sessionManager = sessionManager;
         _userManager = userManager;
         _authContext = authContext;
+        _cryptoProvider = cryptoProvider;
         _logger = logger;
         _logger.LogInformation("SSO Controller initialized");
     }
@@ -85,6 +90,7 @@ public class SSOController : ControllerBase
                 Scope = string.Join(" ", config.OidScopes.Prepend("openid profile")),
             };
             options.Policy.Discovery.ValidateEndpoints = false; // For Google and other providers with different endpoints
+            options.Policy.Discovery.RequireHttps = config.RequireHttps || true;
             var oidcClient = new OidcClient(options);
             var currentState = StateManager[state].State;
             var result = oidcClient.ProcessResponseAsync(Request.QueryString.Value, currentState).Result;
@@ -104,7 +110,7 @@ public class SSOController : ControllerBase
 
             foreach (var claim in result.User.Claims)
             {
-                if (claim.Type == "preferred_username")
+                if (claim.Type == (config.DefaultUsernameClaim ?? "preferred_username"))
                 {
                     StateManager[state].Username = claim.Value;
                     if (config.Roles.Length == 0)
@@ -186,7 +192,7 @@ public class SSOController : ControllerBase
                 }
             }
 
-            // If the provider doesn't support preferred_username, then use sub
+            // If the provider doesn't support the preferred username claim, then use the sub claim
             if (!StateManager[state].Valid)
             {
                 foreach (var claim in result.User.Claims)
@@ -624,6 +630,22 @@ public class SSOController : ControllerBase
 
     private async Task<Guid> CreateCanonicalLinkAndUserIfNotExist(string mode, string provider, string canonicalName)
     {
+        User user = null;
+        user = _userManager.GetUserByName(canonicalName);
+        if (user == null)
+        {
+            _logger.LogInformation($"SSO user {canonicalName} doesn't exist, creating...");
+            user = await _userManager.CreateUserAsync(canonicalName).ConfigureAwait(false);
+            user.AuthenticationProviderId = GetType().FullName;
+            // https://jonathancrozier.com/blog/how-to-generate-a-cryptographically-secure-random-string-in-dot-net-with-c-sharp
+            user.Password = _cryptoProvider.CreatePasswordHash(Convert.ToBase64String(RandomNumberGenerator.GetBytes(64))).ToString();
+
+            // Make sure there aren't any trailing existing links
+            var links = GetCanonicalLinks(mode, provider);
+            links.Remove(canonicalName);
+            UpdateCanonicalLinkConfig(links, mode, provider);
+        }
+
         Guid userId = Guid.Empty;
         try
         {
@@ -637,18 +659,7 @@ public class SSOController : ControllerBase
         if (userId == Guid.Empty)
         {
             _logger.LogInformation("SSO user link doesn't exist, creating...");
-            User user = null;
-            user = _userManager.GetUserByName(canonicalName);
-
-            if (user == null)
-            {
-                _logger.LogInformation($"SSO user {canonicalName} doesn't exist, creating...");
-                user = await _userManager.CreateUserAsync(canonicalName).ConfigureAwait(false);
-                user.AuthenticationProviderId = GetType().FullName;
-            }
-
             userId = user.Id;
-
             CreateCanonicalLink(mode, provider, userId, canonicalName);
         }
 
@@ -948,7 +959,19 @@ public class SSOController : ControllerBase
 
     private string GetRequestBase()
     {
-        return Request.Scheme + "://" + Request.Host + Request.PathBase;
+        int requestPort = Request.Host.Port ?? -1;
+        if ((requestPort == 80 && string.Equals(Request.Scheme, "http", StringComparison.OrdinalIgnoreCase)) || (requestPort == 443 && string.Equals(Request.Scheme, "https", StringComparison.OrdinalIgnoreCase)))
+        {
+            requestPort = -1;
+        }
+
+        return new UriBuilder
+        {
+            Scheme = Request.Scheme,
+            Host = Request.Host.Host,
+            Port = requestPort,
+            Path = Request.PathBase
+        }.ToString().TrimEnd('/');
     }
 
     private ContentResult ReturnError(int code, string message)

SSO-Auth/Config/PluginConfiguration.cs

@@ -217,6 +217,16 @@ public class OidConfig
         }
         set => _canonicalLinks = value;
     }
+
+    /// <summary>
+    /// Gets or sets the default username claim when creating new accounts.
+    /// </summary>
+    public string DefaultUsernameClaim { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether HTTPS in the discovery endpoint is required.
+    /// </summary>
+    public bool RequireHttps { get; set; }
 }
 
 /// <summary>

SSO-Auth/Config/configPage.html

@@ -437,6 +437,25 @@
                   </div>
                 </div>
 
+                <div class="inputContainer">
+                  <label
+                    class="inputLabel inputLabelUnfocused"
+                    for="DefaultUsernameClaim"
+                    >Set default username claim:</label
+                  >
+                  <input
+                    is="emby-input"
+                    id="DefaultUsernameClaim"
+                    type="text"
+                    class="sso-text"
+                  />
+                  <div class="fieldDescription">
+                    The default username claim to use from OpenID by default. If
+                    it is not set, it defaults to
+                    <code>preferred_username</code>.
+                  </div>
+                </div>
+
                 <button
                   id="SaveProvider"
                   is="emby-button"