feat: added OIDC discovery

src/core/server/graph/tenant/mutators/settings.ts

@@ -1,13 +1,24 @@
 import { isNull, omitBy } from "lodash";
 
 import TenantContext from "talk-server/graph/tenant/context";
-import { GQLSettingsInput } from "talk-server/graph/tenant/schema/__generated__/types";
+import {
+  GQLDiscoverOIDCConfigurationInput,
+  GQLOIDCConfiguration,
+  GQLSettingsInput,
+} from "talk-server/graph/tenant/schema/__generated__/types";
 import { Tenant } from "talk-server/models/tenant";
-import { regenerateSSOKey, update } from "talk-server/services/tenant";
+import {
+  discoverOIDCConfiguration,
+  regenerateSSOKey,
+  update,
+} from "talk-server/services/tenant";
 
 export default ({ mongo, redis, tenantCache, tenant }: TenantContext) => ({
   update: (input: GQLSettingsInput): Promise<Tenant | null> =>
     update(mongo, redis, tenantCache, tenant, omitBy(input, isNull)),
   regenerateSSOKey: (): Promise<Tenant | null> =>
     regenerateSSOKey(mongo, redis, tenantCache, tenant),
+  discoverOIDCConfiguration: (
+    input: GQLDiscoverOIDCConfigurationInput
+  ): Promise<GQLOIDCConfiguration> => discoverOIDCConfiguration(input.issuer),
 });

src/core/server/graph/tenant/resolvers/mutation.ts

@@ -51,6 +51,10 @@ const Mutation: GQLMutationTypeResolver<void> = {
     settings: await ctx.mutators.Settings.regenerateSSOKey(),
     clientMutationId: input.clientMutationId,
   }),
+  discoverOIDCConfiguration: async (source, { input }, ctx) => ({
+    configuration: await ctx.mutators.Settings.discoverOIDCConfiguration(input),
+    clientMutationId: input.clientMutationId,
+  }),
 };
 
 export default Mutation;

src/core/server/graph/tenant/schema/schema.graphql

@@ -1900,6 +1900,41 @@ type RegenerateSSOKeyPayload {
   clientMutationId: String!
 }
 
+##################
+## discoverOIDCConfiguration
+##################
+
+input DiscoverOIDCConfigurationInput {
+  """
+
+  """
+  issuer: String!
+
+  """
+  clientMutationId is required for Relay support.
+  """
+  clientMutationId: String!
+}
+
+type OIDCConfiguration {
+  authorizationURL: String
+  tokenURL: String
+  jwksURI: String
+}
+
+type DiscoverOIDCConfigurationPayload {
+  """
+  configuration was the discovered configuration for the OpenID Connect server
+  given the provided issuer.
+  """
+  configuration: OIDCConfiguration
+
+  """
+  clientMutationId is required for Relay support.
+  """
+  clientMutationId: String!
+}
+
 ##################
 ## Mutation
 ##################
@@ -1929,6 +1964,10 @@ type Mutation {
   regenerateSSOKey(input: RegenerateSSOKeyInput!): RegenerateSSOKeyPayload
     @auth(roles: [ADMIN])
 
+  discoverOIDCConfiguration(
+    input: DiscoverOIDCConfigurationInput!
+  ): DiscoverOIDCConfigurationPayload @auth(roles: [ADMIN])
+
   """
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