Add settings endpoint

server/Korga/Configuration/OpenIdConnectOptions.cs

@@ -5,4 +5,5 @@ public class OpenIdConnectOptions
     public string? Authority { get; set; }
     public string? ClientId { get; set; }
     public string? ClientSecret { get; set; }
+    public string? RedirectUri { get; set; }
 }

server/Korga/Controllers/SettingsController.cs

@@ -0,0 +1,33 @@
+using Korga.Configuration;
+using Korga.Models.Json;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
+
+namespace Korga.Controllers;
+
+[ApiController]
+public class SettingsController : ControllerBase
+{
+    private readonly IOptions<OpenIdConnectOptions> options;
+
+    public SettingsController(IOptions<OpenIdConnectOptions> options)
+    {
+        this.options = options;
+    }
+
+    [HttpGet("~/api/settings")]
+    [ProducesResponseType(typeof(SettingsResponse), StatusCodes.Status200OK)]
+    public IActionResult Index()
+    {
+        if (options.Value.Authority == null || options.Value.ClientId == null || options.Value.RedirectUri == null)
+            return StatusCode(StatusCodes.Status500InternalServerError);
+
+        return new JsonResult(new SettingsResponse
+        {
+            OidcAuthority = options.Value.Authority,
+            OidcClientId = options.Value.ClientId,
+            OidcRedirectUri = options.Value.RedirectUri,
+        });
+    }
+}

server/Korga/Models/Json/SettingsResponse.cs

@@ -0,0 +1,8 @@
+namespace Korga.Models.Json;
+
+public class SettingsResponse
+{
+    public required string OidcAuthority { get; init; }
+    public required string OidcClientId { get; init; }
+    public required string OidcRedirectUri { get; init; }
+}

webapp/src/services/client.ts

@@ -1,9 +1,11 @@
-import { useUserManagerStore } from "./usermanager";
+import { UserManager } from "oidc-client-ts";
 
 const baseUrl = import.meta.env.PROD
   ? window.basePath.slice(0, -1)
   : import.meta.env.VITE_API_BASE_PATH.slice(0, -1)
 
+let userManager: UserManager | null = null
+
 const getInfo: RequestInit = {
   credentials: "include",
 }
@@ -20,9 +22,25 @@ const deleteInfo: RequestInit = {
 }
 
 export default {
+  async userManager() {
+    if (userManager != null) {
+      return userManager
+    }
+    const response = await fetch(baseUrl + "/api/settings")
+    if (response.ok === false) {
+      throw new Error("Unexpected status code " + response.status)
+    }
+    const settings = await response.json() as { oidcAuthority: string, oidcClientId: string, oidcRedirectUri: string }
+    userManager = new UserManager({
+      authority: settings.oidcAuthority,
+      client_id: settings.oidcClientId,
+      redirect_uri: settings.oidcRedirectUri,
+    })
+    return userManager
+  },
   async get<T>(path: string) {
-    const store = useUserManagerStore()
-    const user = await store.userManager.getUser()
+    const userManager = await this.userManager()
+    const user = await userManager.getUser()
     const response = await fetch(baseUrl + path, {
       headers: { Authorization: `Bearer ${user?.access_token}` },
     })
@@ -37,8 +55,8 @@ export default {
     return (await response.json()) as T
   },
   async getResponse(path: string) {
-    const store = useUserManagerStore()
-    const user = await store.userManager.getUser()
+    const userManager = await this.userManager()
+    const user = await userManager.getUser()
     const response = await fetch(baseUrl + path, {
       headers: { Authorization: `Bearer ${user?.access_token}` },
     })