Adding a special group principal $all

Makefile

@@ -53,3 +53,6 @@ inspect: build
 
 inspect-brk: build
 	node --inspect-brk dist/app.js
+
+src/db-types.js:
+	./bin/generate-db-types.mjs

changelog.md

@@ -7,6 +7,8 @@ Changelog
 * Update to curveball 0.21
 * Refactored the privilege system to make internally easier to use. There
   should be no end-user effects to this.
+* Added a system group principal , which allows admins to set privileges for
+  every user in the system.
 
 
 0.23.1 (2023-03-29)

src/db-types.ts

@@ -30,29 +30,26 @@ interface Tables {
 export type ChangelogRecord = {
   id: number;
   timestamp: number | null;
-}
-
+};
 export type GroupMembersRecord = {
   user_id: number;
   group_id: number;
-}
-
+};
 export type Oauth2ClientsRecord = {
   id: number;
   client_id: string;
   client_secret: string;
   allowed_grant_types: string;
   user_id: number;
-  require_pkce: number | null;
-}
-
+  require_pkce: number;
+};
 export type Oauth2CodesRecord = {
   id: number;
   client_id: number;
   code: string;
   principal_id: number;
-  code_challenge: string | null;
   code_challenge_method: 'plain' | 'S256' | null;
+  code_challenge: string | null;
   created_at: number;
   browser_session_id: string | null;
 
@@ -65,14 +62,12 @@ export type Oauth2CodesRecord = {
    * OpenID Connect Nonce
    */
   nonce: string | null;
-}
-
+};
 export type Oauth2RedirectUrisRecord = {
   id: number;
   oauth2_client_id: number;
   uri: string;
-}
-
+};
 export type Oauth2TokensRecord = {
   id: number;
   oauth2_client_id: number;
@@ -85,16 +80,15 @@ export type Oauth2TokensRecord = {
   browser_session_id: string | null;
 
   /**
-   * 1=implicit, 2=client_credentials, 3=password, 4=authorization_code, 5=authorization_code with secret
+   * 1=implicit, 2=client_credentials, 3=password, 4=authorization_code, 5=authorization_code with secret,6=one-time-token
    */
   grant_type: number | null;
 
   /**
-   * OAuth2 scopes, comma separated
+   * OAuth2 scopes, space separated
    */
   scope: string | null;
-}
-
+};
 export type PrincipalsRecord = {
   id: number;
   identity: string;
@@ -104,30 +98,31 @@ export type PrincipalsRecord = {
   active: number;
 
   /**
-   * 1 = user, 2 = app
+   * 1 = user, 2 = app, 3 = group
    */
   type: number;
   modified_at: number;
-}
 
+  /**
+   * System are built-in and cannot be deleted
+   */
+  system: number;
+};
 export type PrivilegesRecord = {
   privilege: string;
   description: string;
-}
-
+};
 export type ResetPasswordTokenRecord = {
   id: number;
   user_id: number;
   token: string;
   expires_at: number;
   created_at: number;
-}
-
+};
 export type ServerSettingsRecord = {
   setting: string;
   value: string | null;
-}
-
+};
 export type UserAppPermissionsRecord = {
   id: number;
 
@@ -160,8 +155,7 @@ export type UserAppPermissionsRecord = {
    * Last time this application issued or refreshed an access token
    */
   last_used_at: number | null;
-}
-
+};
 export type UserLogRecord = {
   id: number;
   time: number;
@@ -170,36 +164,31 @@ export type UserLogRecord = {
   ip: string;
   user_agent: string | null;
   country: string | null;
-}
-
+};
 export type UserPasswordsRecord = {
   user_id: number;
   password: string;
-}
-
+};
 export type UserPrivilegesRecord = {
   id: number;
   user_id: number;
   resource: string;
   privilege: string;
-}
-
+};
 export type UserTotpRecord = {
   user_id: number;
   secret: string;
   failures: number;
   created: number;
-}
-
+};
 export type UserWebauthnRecord = {
   id: number;
   user_id: number;
   credential_id: string;
   public_key: string;
   counter: number;
   created: number;
-}
-
+};
 
 
 }

src/group/controller/item.ts

@@ -37,13 +37,21 @@ class GroupController extends Controller {
 
     const principalPrivileges = await privilegeService.get(group);
 
-    ctx.response.body = hal.item(
-      group,
-      principalPrivileges.getAll(),
-      isAdmin,
-      await groupService.findGroupsForPrincipal(group),
-      members,
-    );
+    if (group.system && group.externalId === '$all') {
+      ctx.response.body = hal.itemAllUsers(
+        group,
+        principalPrivileges.getAll(),
+        isAdmin,
+      );
+    } else {
+      ctx.response.body = hal.item(
+        group,
+        principalPrivileges.getAll(),
+        isAdmin,
+        await groupService.findGroupsForPrincipal(group),
+        members,
+      );
+    }
 
   }
 

src/group/formats/hal.ts

@@ -74,6 +74,7 @@ export function item(group: Group, privileges: PrivilegeMap, isAdmin: boolean, g
     createdAt: group.createdAt,
     modifiedAt: group.modifiedAt,
     type: group.type,
+    system: group.system || undefined,
     privileges
   };
 
@@ -94,6 +95,43 @@ export function item(group: Group, privileges: PrivilegeMap, isAdmin: boolean, g
 
 }
 
+/**
+ * Generate a HAL response for the 'all users' group.
+ *
+ * This group is special as it contains a virtual representation of all users in the system.
+ * We don't want to allow modifying the members list of listing the members generally.
+ */
+export function itemAllUsers(group: Group, privileges: PrivilegeMap, isAdmin: boolean): HalResource {
+
+  const hal: HalResource = {
+    _links: {
+      'self': {href: group.href, title: group.nickname },
+      'me': { href: group.identity, title: group.nickname },
+      'up' : { href: '/group', title: 'List of groups' },
+      'describedby': {
+        href: 'https://curveballjs.org/schemas/a12nserver/group.json',
+        type: 'application/schema+json',
+      }
+    },
+    nickname: group.nickname,
+    createdAt: group.createdAt,
+    modifiedAt: group.modifiedAt,
+    type: group.type,
+    system: true,
+    privileges
+  };
+
+  if (isAdmin) {
+    hal._links['privileges'] = {
+      href: `${group.href}/edit/privileges`,
+      title: 'Change privilege policy',
+    };
+  }
+
+  return hal;
+
+}
+
 function addMemberForm(group: Group): HalFormsTemplate {
 
   return {

src/migrations/20230924194452_all_users.ts

@@ -0,0 +1,35 @@
+import { Knex } from 'knex';
+
+
+export async function up(knex: Knex): Promise<void> {
+
+  await knex.schema.alterTable('principals', table => {
+
+    table
+      .tinyint('system')
+      .notNullable()
+      .defaultTo(0)
+      .comment('System principals are built-in and cannot be deleted');
+
+  });
+
+  await knex('principals').insert({
+    identity: 'urn:uuid:5793d1ce-d21e-4955-9091-c2b9debb9ec1',
+    nickname: 'All Users',
+    created_at: Date.now(),
+    active: 1,
+    type: 3, // Group
+    modified_at: Date.now(),
+    external_id: '$all',
+    system: 1,
+  });
+
+}
+
+
+export async function down(knex: Knex): Promise<void> {
+
+  throw new Error('Reverting this migration is not supported.');
+
+}
+

src/oauth2/service.ts

@@ -235,6 +235,7 @@ export function generateTokenDeveloperToken(options: GenerateTokenDeveloperToken
       type: 'app',
       nickname: 'a12n-server system user',
       active: true,
+      system: true,
     }
   };
   return generateTokenInternal({

src/principal/privileged-service.ts

@@ -83,7 +83,8 @@ export function recordToModel(user: PrincipalsRecord): Principal {
     createdAt: new Date(user.created_at),
     modifiedAt: new Date(user.modified_at),
     type: userTypeIntToUserType(user.type),
-    active: !!user.active
+    active: !!user.active,
+    system: !!user.system,
   };
 
 }

src/principal/service.ts

@@ -15,7 +15,8 @@ export const fieldNames: Array<keyof PrincipalsRecord> = [
   'created_at',
   'modified_at',
   'type',
-  'active'
+  'active',
+  'system',
 ];
 
 export async function findAll(type: 'user'): Promise<User[]>;
@@ -228,6 +229,7 @@ export async function save<T extends PrincipalType>(principal: BasePrincipal<T>|
       active: principal.active ? 1 : 0,
       modified_at: Date.now(),
       created_at: Date.now(),
+      system: 0,
     };
 
     const result = await insertAndGetId('principals', newPrincipalsRecord);
@@ -236,7 +238,8 @@ export async function save<T extends PrincipalType>(principal: BasePrincipal<T>|
       id: result,
       href: `/${principal.type}/${externalId}`,
       externalId,
-      ...principal
+      system: false,
+      ...principal,
     };
 
   } else {
@@ -249,7 +252,7 @@ export async function save<T extends PrincipalType>(principal: BasePrincipal<T>|
 
     principal.modifiedAt = new Date();
 
-    const updatePrincipalsRecord: Omit<PrincipalsRecord, 'id' | 'created_at' | 'type' | 'external_id'> = {
+    const updatePrincipalsRecord: Omit<PrincipalsRecord, 'id' | 'created_at' | 'type' | 'external_id' | 'system'> = {
       identity: principal.identity,
       nickname: principal.nickname,
       active: principal.active ? 1 : 0,
@@ -300,7 +303,8 @@ export function recordToModel(user: PrincipalsRecord): Principal {
     createdAt: new Date(user.created_at),
     modifiedAt: new Date(user.modified_at),
     type: userTypeIntToUserType(user.type),
-    active: !!user.active
+    active: !!user.active,
+    system: !!user.system,
   };
 
 }

src/privilege/service.ts

@@ -247,6 +247,7 @@ async function getRecursiveGroupIds(principalId: number): Promise<number[]> {
 async function getPrivilegesForPrincipal(principal: Principal): Promise<PrivilegeMap> {
 
   const recursiveGroupIds = await getRecursiveGroupIds(principal.id);
+  if (principal.type === 'user') recursiveGroupIds.push(await getAllUsersGroupId());
 
   const result = await query(
     `SELECT resource, privilege FROM user_privileges WHERE user_id IN (${recursiveGroupIds.map(_ => '?').join(',')})`,
@@ -272,3 +273,26 @@ async function getPrivilegesForPrincipal(principal: Principal): Promise<Privileg
 
 }
 
+let allUsersGroupId: number|null = null;
+
+/**
+ * Returns the set of privileges for the $all group
+ */
+async function getAllUsersGroupId() {
+
+  if (allUsersGroupId) return allUsersGroupId;
+  const allPrincipal = await db('principals')
+    .select('id')
+    .first()
+    .where({
+      external_id: '$all',
+      type: 3
+    });
+
+  if (!allPrincipal) {
+    throw new Error('Could not find the $all group in the database!');
+  }
+  allUsersGroupId = allPrincipal.id;
+  return allUsersGroupId;
+
+}