feat: Create the auth_provider module

modules/identities/db/migrations/20240803225215_setup/migration.sql

@@ -0,0 +1,16 @@
+-- CreateTable
+CREATE TABLE "UserIdentities" (
+    "userId" UUID NOT NULL,
+    "identityType" TEXT NOT NULL,
+    "identityId" TEXT NOT NULL,
+    "uniqueData" JSONB NOT NULL,
+    "additionalData" JSONB NOT NULL,
+
+    CONSTRAINT "UserIdentities_pkey" PRIMARY KEY ("userId","identityType","identityId")
+);
+
+-- CreateIndex
+CREATE INDEX "UserIdentities_userId_idx" ON "UserIdentities"("userId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "UserIdentities_identityType_identityId_uniqueData_key" ON "UserIdentities"("identityType", "identityId", "uniqueData");

modules/identities/db/migrations/migration_lock.toml

@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "postgresql"

modules/identities/db/schema.prisma

@@ -0,0 +1,38 @@
+// Do not modify this `datasource` block
+datasource db {
+	provider = "postgresql"
+	url      = env("DATABASE_URL")
+}
+
+model UserIdentities {
+    userId          String      @db.Uuid
+
+	// Overarching identity type: email, sms, oauth, etc.
+	identityType    String
+
+	// Specific identity type
+	// email:
+	// - passwordless
+	// - password
+	// - etc.
+	// oauth:
+	// - google
+	// - facebook
+	// - etc.
+	identityId      String
+
+	// The data that is unique to this identity.
+	// In the case of username, this would be the username.
+	// In the case of email, this would be the email address.
+	// In the case of oauth, this would be the oauth identity's "sub" field.
+	uniqueData      Json
+
+	// Additional data that is stored with the identity.
+	// This can be used to store things like oauth tokens, last login time, etc.
+	// Data here only needs to be handled by the specific identity provider.
+	additionalData  Json
+
+	@@index([userId])
+	@@id([userId, identityType, identityId])
+	@@unique([identityType, identityId, uniqueData])
+}

modules/identities/module.json

@@ -0,0 +1,64 @@
+{
+    "name": "Identities",
+    "description": "Manage identities and identity data for users. Intended for internal use by modules exposing auth providers.",
+    "icon": "key",
+    "tags": [
+        "core",
+        "user",
+        "auth"
+    ],
+    "authors": [
+        "rivet-gg",
+        "Blckbrry-Pi"
+    ],
+    "status": "beta",
+    "dependencies": {
+        "rate_limit": {},
+        "users": {},
+        "tokens": {}
+    },
+    "scripts": {
+        "list": {
+            "name": "List Identities",
+            "description": "List all identities the user is associated with.",
+            "public": true
+        },
+        "get": {
+            "name": "Get Identity Data",
+            "description": "Get the data associated with a specific identity for a user."
+        },
+        "set": {
+            "name": "Set Identity Data",
+            "description": "Set the data associated with a specific identity for a user."
+        },
+
+        "sign_in": {
+            "name": "Sign In With Identity",
+            "description": "Sign in to a user with an identity."
+        },
+        "sign_up": {
+            "name": "Sign Up With Identity",
+            "description": "Sign up with an identity. Creates a new user."
+        },
+        "sign_in_or_sign_up": {
+            "name": "Sign In or Sign Up With Identity",
+            "description": "Sign in to a user with an identity, creating a new user if it fails."
+        },
+        "link": {
+            "name": "Link Identity To User",
+            "description": "Link a new identity and its associated data to a user. This is used for login and non-login identities."
+        }
+    },
+    "routes": {},
+    "errors": {
+        "identity_provider_not_found": {
+            "name": "Identity Provider Not Found"
+        },
+        "identity_provider_already_added": {
+            "name": "Identity Provider Already Added To User"
+        },
+        "identity_provider_already_used": {
+            "name": "Identity Provider Already Used By Other User"
+        }
+    }
+}

modules/identities/scripts/get.ts

@@ -0,0 +1,38 @@
+import { ScriptContext } from "../module.gen.ts";
+import { getData } from "../utils/db.ts";
+import { IdentityData, IdentityProviderInfo } from "../utils/types.ts";
+
+export interface Request {
+	userToken: string;
+    info: IdentityProviderInfo;
+}
+
+export interface Response {
+    data: {
+        uniqueData: IdentityData;
+        additionalData: IdentityData;
+    } | null;
+}
+
+export async function run(
+	ctx: ScriptContext,
+	req: Request,
+): Promise<Response> {
+    // Ensure the user token is valid and get the user ID
+    const { userId } = await ctx.modules.users.authenticateToken({ userToken: req.userToken });
+
+    // Get identity data
+    const identity = await getData(ctx.db, userId, req.info.identityType, req.info.identityId);
+    if (!identity) return { data: null };
+
+    // Ensure data is of correct type
+    const { uniqueData, additionalData } = identity;
+    if (typeof uniqueData !== 'object' || Array.isArray(uniqueData) || uniqueData === null) {
+        return { data: null };
+    }
+    if (typeof additionalData !== 'object' || Array.isArray(additionalData) || additionalData === null) {
+        return { data: null };
+    }
+
+    return { data: { uniqueData, additionalData } };
+}

modules/identities/scripts/link.ts

@@ -0,0 +1,43 @@
+import { RuntimeError, ScriptContext } from "../module.gen.ts";
+import { getData, listIdentities } from "../utils/db.ts";
+import { IdentityDataInput, IdentityProviderInfo } from "../utils/types.ts";
+
+export interface Request {
+	userToken: string;
+    info: IdentityProviderInfo;
+    uniqueData: IdentityDataInput;
+    additionalData: IdentityDataInput;
+}
+
+export interface Response {
+	identityProviders: IdentityProviderInfo[];
+}
+
+export async function run(
+	ctx: ScriptContext,
+	req: Request,
+): Promise<Response> {
+
+    // Ensure the user token is valid and get the user ID
+    const { userId } = await ctx.modules.users.authenticateToken({ userToken: req.userToken } );
+
+    return await ctx.db.$transaction(async tx => {
+        // Error if this identity provider is ALREADY associated with the user
+        if (await getData(tx, userId, req.info.identityType, req.info.identityId)) {
+            throw new RuntimeError("identity_provider_already_added");
+        }
+
+        // Associate the identity provider data with the user
+        await tx.userIdentities.create({
+            data: {
+                userId,
+                identityType: req.info.identityType,
+                identityId: req.info.identityId,
+                uniqueData: req.uniqueData,
+                additionalData: req.additionalData,
+            },
+        });
+
+        return { identityProviders: await listIdentities(tx, userId) };
+    });
+}

modules/identities/scripts/list.ts

@@ -0,0 +1,23 @@
+import { ScriptContext } from "../module.gen.ts";
+import { listIdentities } from "../utils/db.ts";
+import { IdentityProviderInfo } from "../utils/types.ts";
+
+export interface Request {
+	userToken: string;
+}
+
+export interface Response {
+    identityProviders: IdentityProviderInfo[];
+}
+
+export async function run(
+	ctx: ScriptContext,
+	req: Request,
+): Promise<Response> {
+	await ctx.modules.rateLimit.throttlePublic({});
+
+    // Ensure the user token is valid and get the user ID
+    const { userId } = await ctx.modules.users.authenticateToken({ userToken: req.userToken } );
+
+    return { identityProviders: await listIdentities(ctx.db, userId) };
+}

modules/identities/scripts/set.ts

@@ -0,0 +1,44 @@
+import { ScriptContext, Empty, RuntimeError } from "../module.gen.ts";
+import { getData } from "../utils/db.ts";
+import { IdentityDataInput, IdentityProviderInfo } from "../utils/types.ts";
+
+export interface Request {
+	userToken: string;
+    info: IdentityProviderInfo;
+    uniqueData?: IdentityDataInput;
+    additionalData: IdentityDataInput;
+}
+
+export type Response = Empty;
+
+export async function run(
+	ctx: ScriptContext,
+	req: Request,
+): Promise<Response> {
+    // Ensure the user token is valid and get the user ID
+    const { userId } = await ctx.modules.users.authenticateToken({ userToken: req.userToken } );
+
+    await ctx.db.$transaction(async tx => {
+        // Ensure the identity provider is associated with the user
+        if (!await getData(tx, userId, req.info.identityType, req.info.identityId)) {
+            throw new RuntimeError("identity_provider_not_found");
+        }
+
+        // Update the associated data
+        await tx.userIdentities.update({
+            where: {
+                userId_identityType_identityId: {
+                    userId,
+                    identityType: req.info.identityType,
+                    identityId: req.info.identityId,
+                }
+            },
+            data: {
+                uniqueData: req.uniqueData,
+                additionalData: req.additionalData,
+            },
+        });
+    });
+
+    return {};
+}

modules/identities/scripts/sign_in.ts

@@ -0,0 +1,42 @@
+import { ScriptContext } from "../module.gen.ts";
+import { IdentityDataInput, IdentityProviderInfo } from "../utils/types.ts";
+
+export interface Request {
+    info: IdentityProviderInfo;
+    uniqueData: IdentityDataInput;
+}
+
+export interface Response {
+    userToken: string;
+    userId: string;
+}
+
+export async function run(
+	ctx: ScriptContext,
+	req: Request,
+): Promise<Response> {
+    // Get user the provider is associated with
+    const identity = await ctx.db.userIdentities.findFirst({
+        where: {
+            identityType: req.info.identityType,
+            identityId: req.info.identityId,
+            uniqueData: { equals: req.uniqueData },
+        },
+        select: {
+            userId: true,
+        },
+    });
+
+    // If the provider info/uniqueData combo is not associated with a user,
+    // throw provider_not_found error.
+    if (!identity) {
+        throw new Error("identity_not_found");
+    }
+
+    // Generate a user token
+    const { token: { token } } = await ctx.modules.users.createToken({ userId: identity.userId });
+    return {
+        userToken: token,
+        userId: identity.userId,
+    };
+}

modules/identities/scripts/sign_in_or_sign_up.ts

@@ -0,0 +1,56 @@
+import { ScriptContext } from "../module.gen.ts";
+import { getUserId } from "../utils/db.ts";
+import { IdentityDataInput, IdentityProviderInfo } from "../utils/types.ts";
+
+export interface Request {
+    info: IdentityProviderInfo;
+    uniqueData: IdentityDataInput;
+    additionalData: IdentityDataInput;
+
+    username?: string;
+}
+
+export interface Response {
+    userToken: string;
+    userId: string;
+}
+
+export async function run(
+	ctx: ScriptContext,
+	req: Request,
+): Promise<Response> {
+    return await ctx.db.$transaction(async tx => {
+        const userId = await getUserId(tx, req.info.identityType, req.info.identityId, req.uniqueData);
+
+        // If the identity provider is associated with a user, sign in
+        if (userId) {
+            // Generate a user token
+            const { token: { token } } = await ctx.modules.users.createToken({ userId });
+            return {
+                userToken: token,
+                userId,
+            };
+        } else {
+            // Otherwise, create a new user
+            const { user } = await ctx.modules.users.create({ username: req.username });
+
+            // Insert the identity data with the newly-created user
+            await tx.userIdentities.create({
+                data: {
+                    userId: user.id,
+                    identityType: req.info.identityType,
+                    identityId: req.info.identityId,
+                    uniqueData: req.uniqueData,
+                    additionalData: req.additionalData,
+                },
+            });
+
+            // Generate a user token and return it
+            const { token: { token } } = await ctx.modules.users.createToken({ userId: user.id });
+            return {
+                userToken: token,
+                userId: user.id,
+            };
+        }
+    });
+}