use matrix-appservice-bridge support for postgres

Author: Gnuxie

mx-tester.yml

@@ -5,8 +5,6 @@ up:
     - docker run --rm --network $MX_TEST_NETWORK_NAME --name mjolnir-test-postgres --domainname mjolnir-test-postgres -e POSTGRES_PASSWORD=mjolnir-test -e POSTGRES_USER=mjolnir-tester -e POSTGRES_DB=mjolnir-test-db -d -p 127.0.0.1:8083:5432 postgres
     # Wait until postgresql is ready
     - until psql postgres://mjolnir-tester:mjolnir-test@localhost:8083/mjolnir-test-db -c ""; do echo "Waiting for psql..."; sleep 1s; done
-    # Make table in postgres
-    - psql postgres://mjolnir-tester:mjolnir-test@localhost:8083/mjolnir-test-db -c "CREATE TABLE mjolnir (local_part VARCHAR(255), owner VARCHAR(255), management_room TEXT)"
     # Launch the reverse proxy, listening for connections *only* on the local host.
     - docker run --rm --network host --name mjolnir-test-reverse-proxy -p 127.0.0.1:8081:80 -v $MX_TEST_CWD/test/nginx.conf:/etc/nginx/nginx.conf:ro -d nginx
     - yarn install

src/appservice/AppService.ts

@@ -16,7 +16,8 @@ limitations under the License.
 
 import { AppServiceRegistration, Bridge, Request, WeakEvent, BridgeContext, MatrixUser } from "matrix-appservice-bridge";
 import { MjolnirManager } from ".//MjolnirManager";
-import { DataStore, PgDataStore } from ".//datastore";
+import { DataStore } from ".//datastore";
+import { PgDataStore } from "./postgres/PgDataStore";
 import { Api } from "./Api";
 import { IConfig } from "./config/config";
 import { AccessControl } from "./AccessControl";

src/appservice/datastore.ts

@@ -13,7 +13,6 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-import { Client } from "pg";
 
 export interface MjolnirRecord {
     local_part: string,
@@ -56,53 +55,4 @@ export interface DataStore {
     lookupByLocalPart(localPart: string): Promise<MjolnirRecord[]>;
 }
 
-export class PgDataStore implements DataStore {
-    private pgClient: Client;
 
-    constructor(connectionString: string) {
-        this.pgClient = new Client({ connectionString: connectionString });
-    }
-
-    public async init(): Promise<void> {
-        await this.pgClient.connect();
-    }
-
-    public async close(): Promise<void> {
-        await this.pgClient.end()
-    }
-
-    public async list(): Promise<MjolnirRecord[]> {
-        const result = await this.pgClient.query<MjolnirRecord>("SELECT local_part, owner, management_room FROM mjolnir");
-
-        if (!result.rowCount) {
-            return [];
-        }
-
-        return result.rows;
-    }
-
-    public async store(mjolnirRecord: MjolnirRecord): Promise<void> {
-        await this.pgClient.query(
-            "INSERT INTO mjolnir (local_part, owner, management_room) VALUES ($1, $2, $3)",
-            [mjolnirRecord.local_part, mjolnirRecord.owner, mjolnirRecord.management_room],
-        );
-    }
-
-    public async lookupByOwner(owner: string): Promise<MjolnirRecord[]> {
-        const result = await this.pgClient.query<MjolnirRecord>(
-            "SELECT local_part, owner, management_room FROM mjolnir WHERE owner = $1",
-            [owner],
-        );
-
-        return result.rows;
-    }
-
-    public async lookupByLocalPart(localPart: string): Promise<MjolnirRecord[]> {
-        const result = await this.pgClient.query<MjolnirRecord>(
-            "SELECT local_part, owner, management_room FROM mjolnir WHERE local_part = $1",
-            [localPart],
-        );
-
-        return result.rows;
-    }
-}

src/appservice/postgres/PgDataStore.ts

@@ -0,0 +1,69 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { PostgresStore } from "matrix-appservice-bridge";
+import { DataStore, MjolnirRecord } from "../datastore";
+import postgres from 'postgres';
+
+function getSchema(): ((sql: postgres.Sql) => Promise<void>)[] {
+    const nSchema = 1;
+    const schema = [];
+    for (let schemaID = 1; schemaID < nSchema + 1; schemaID++) {
+        schema.push(require(`./schema/v${schemaID}`).runSchema);
+    }
+    return schema;
+}
+
+export class PgDataStore extends PostgresStore implements DataStore {
+
+    constructor(connectionString: string) {
+        super(getSchema(), { url: connectionString })
+    }
+
+    public async init(): Promise<void> {
+        await this.ensureSchema();
+    }
+
+    public async close(): Promise<void> {
+        await this.close();
+    }
+
+    public async list(): Promise<MjolnirRecord[]> {
+        const result = await this.sql`SELECT local_part, owner, management_room FROM mjolnir`;
+        if (!result.count) {
+            return [];
+        }
+
+        return result.flat() as MjolnirRecord[];
+    }
+
+    public async store(mjolnirRecord: MjolnirRecord): Promise<void> {
+        await this.sql`INSERT INTO mjolnir (local_part, owner, management_room)
+        VALUES (${mjolnirRecord.local_part}, ${mjolnirRecord.owner}, ${mjolnirRecord.management_room})`;
+    }
+
+    public async lookupByOwner(owner: string): Promise<MjolnirRecord[]> {
+        const result = await this.sql`SELECT local_part, owner, management_room FROM mjolnir
+        WHERE owner = ${owner}`;
+        return result.flat() as MjolnirRecord[];
+    }
+
+    public async lookupByLocalPart(localPart: string): Promise<MjolnirRecord[]> {
+        const result = await this.sql`SELECT local_part, owner, management_room FROM mjolnir
+        WHERE local_part = ${localPart}`;
+        return result.flat() as MjolnirRecord[];
+    }
+}

src/appservice/postgres/schema/v1.ts

@@ -0,0 +1,8 @@
+
+import postgres from 'postgres';
+
+export async function v0Schema(sql: postgres.Sql) {
+    await sql.begin(s => [
+        s`CREATE TABLE mjolnir (local_part VARCHAR(255), owner VARCHAR(255), management_room TEXT);`
+    ]);
+}