From f62db8e44267d839b6662319bafa4a775b1c3f24 Mon Sep 17 00:00:00 2001
From: svenefftinge <sven@gitpod.io>
Date: Thu, 21 Sep 2023 06:21:13 +0000
Subject: [PATCH] [fga] trying to understand the sharing issue

---
 .../server/src/authorization/authorizer.ts    | 23 ++++++-------------
 .../src/authorization/spicedb-authorizer.ts   |  3 ++-
 .../src/workspace/gitpod-server-impl.ts       | 21 ++++++++++++++++-
 3 files changed, 29 insertions(+), 18 deletions(-)

diff --git a/components/server/src/authorization/authorizer.ts b/components/server/src/authorization/authorizer.ts
index facf6fbb333f01..d57597cc28d60a 100644
--- a/components/server/src/authorization/authorizer.ts
+++ b/components/server/src/authorization/authorizer.ts
@@ -179,6 +179,7 @@ export class Authorizer {
         userId: string,
         permission: WorkspacePermission,
         workspaceId: string,
+        forceEnablement?: boolean, // temporary to find an issue with workspace sharing
     ): Promise<boolean> {
         if (userId === SYSTEM_USER) {
             return true;
@@ -191,7 +192,7 @@ export class Authorizer {
             consistency,
         });
 
-        return this.authorizer.check(req, { userId });
+        return this.authorizer.check(req, { userId }, forceEnablement);
     }
 
     async checkPermissionOnWorkspace(userId: string, permission: WorkspacePermission, workspaceId: string) {
@@ -423,25 +424,15 @@ export class Authorizer {
     ): Promise<void> {
         const rels: v1.RelationshipUpdate[] = [];
         for (const { orgID, userID, workspaceID, shared } of ids) {
-            this.internalAddWorkspaceToOrg(orgID, userID, workspaceID, shared, (u) => rels.push(u));
+            rels.push(set(rel.workspace(workspaceID).org.organization(orgID)));
+            rels.push(set(rel.workspace(workspaceID).owner.user(userID)));
+            if (shared) {
+                rels.push(set(rel.workspace(workspaceID).shared.anyUser));
+            }
         }
         await this.authorizer.writeRelationships(...rels);
     }
 
-    private internalAddWorkspaceToOrg(
-        orgID: string,
-        userID: string,
-        workspaceID: string,
-        shared: boolean,
-        acceptor: (update: v1.RelationshipUpdate) => void,
-    ): void {
-        acceptor(set(rel.workspace(workspaceID).org.organization(orgID)));
-        acceptor(set(rel.workspace(workspaceID).owner.user(userID)));
-        if (shared) {
-            acceptor(set(rel.workspace(workspaceID).shared.anyUser));
-        }
-    }
-
     async removeWorkspaceFromOrg(orgID: string, userID: string, workspaceID: string): Promise<void> {
         if (!(await isFgaWritesEnabled(userID))) {
             return;
diff --git a/components/server/src/authorization/spicedb-authorizer.ts b/components/server/src/authorization/spicedb-authorizer.ts
index 584c03f048f90c..c445bdb64d457c 100644
--- a/components/server/src/authorization/spicedb-authorizer.ts
+++ b/components/server/src/authorization/spicedb-authorizer.ts
@@ -54,8 +54,9 @@ export class SpiceDBAuthorizer {
         experimentsFields: {
             userId: string;
         },
+        forceEnablement?: boolean,
     ): Promise<boolean> {
-        const featureEnabled = await isFgaChecksEnabled(experimentsFields.userId);
+        const featureEnabled = !!forceEnablement || (await isFgaChecksEnabled(experimentsFields.userId));
         const timer = spicedbClientLatency.startTimer();
         let error: Error | undefined;
         try {
diff --git a/components/server/src/workspace/gitpod-server-impl.ts b/components/server/src/workspace/gitpod-server-impl.ts
index b0eab46cb829e9..878ef3970eeaab 100644
--- a/components/server/src/workspace/gitpod-server-impl.ts
+++ b/components/server/src/workspace/gitpod-server-impl.ts
@@ -176,6 +176,8 @@ import {
     suggestionFromRecentWorkspace,
     suggestionFromUserRepo,
 } from "./suggested-repos-sorter";
+import { TrustedValue } from "@gitpod/gitpod-protocol/lib/util/scrubbing";
+import { rel } from "../authorization/definitions";
 
 // shortcut
 export const traceWI = (ctx: TraceContext, wi: Omit<LogContext, "userId">) => TraceContext.setOWI(ctx, wi); // userId is already taken care of in WebsocketConnectionManager
@@ -564,6 +566,23 @@ export class GitpodServerImpl implements GitpodServerWithTracing, Disposable {
                 `operation not permitted: missing ${op} permission on ${resource.kind}`,
             );
         }
+        if (resource.kind === "workspace" && op === "get") {
+            // access to workspaces is granted. Let's verify that this is also thecase with FGA
+            const result = await this.auth.hasPermissionOnWorkspace(
+                this.userID!,
+                "read_info",
+                resource.subject.id,
+                true,
+            );
+            if (!result) {
+                const isShared = await this.auth.find(rel.workspace(resource.subject.id).shared.anyUser);
+                log.error("user has access to workspace, but not through FGA", {
+                    userId: this.userID,
+                    workspace: new TrustedValue(resource.subject),
+                    sharedRelationship: isShared && new TrustedValue(isShared),
+                });
+            }
+        }
     }
 
     /**
@@ -3794,7 +3813,7 @@ export class GitpodServerImpl implements GitpodServerWithTracing, Disposable {
         if (!parsedAttributionId) {
             throw new ApplicationError(ErrorCodes.BAD_REQUEST, "Unable to parse attributionId");
         }
-        await this.auth.checkPermissionOnOrganization(admin.id, "read_billing", attributionId);
+        await this.auth.checkPermissionOnOrganization(admin.id, "read_billing", parsedAttributionId.teamId);
         return this.billingModes.getBillingMode(admin.id, parsedAttributionId.teamId);
     }