Absolute bare minimum for a bot

.dockerignore

@@ -0,0 +1,8 @@
+.git
+node_modules
+config
+lib
+logs
+storage
+db
+*.db

.gitignore

@@ -1,3 +1,12 @@
+config/*
+!config/default.yaml
+lib/
+storage/
+
+/.idea
+
+/db
+
 # Logs
 logs
 *.log

Dockerfile

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+FROM node:alpine
+COPY . /tmp/src
+RUN cd /tmp/src \
+    && npm install \
+    && npm run build \
+    && mv lib/ /mjolnir/ \
+    && mv node_modules / \
+    && cd / \
+    && rm -rf /tmp/*
+
+ENV NODE_ENV=production
+ENV NODE_CONFIG_DIR=/data/config
+
+CMD node /mjolnir/index.js
+VOLUME ["/data"]

README.md

@@ -1,2 +1,59 @@
 # mjolnir
-A moderation tool for Matrix
+
+A moderation tool for Matrix.
+
+## Features
+
+TODO: Describe what all this means.
+
+Phase 1:
+* [ ] Ban users
+* [ ] ACL servers
+* [ ] Update lists with new bans/ACLs
+* [ ] "Ban on sight" mode (rather than proactive)
+
+Phase 2:
+* [ ] Synapse antispam module
+* [ ] Riot hooks (independent of mjolnir?)
+* [ ] Support community-defined scopes? (ie: no hardcoded config)
+* [ ] Vet rooms on startup option
+
+## Docker (preferred)
+
+Mjolnir does not yet have its own image published.
+
+```bash
+git clone https://github.com/matrix-org/mjolnir.git
+cd mjolnir
+
+docker build -t mjolnir .
+
+# Copy and edit the config. It is not recommended to change the data path.
+mkdir -p /etc/mjolnir
+cp config/default.yaml /etc/mjolnir/production.yaml
+nano /etc/mjolnir/production.yaml
+
+docker run --rm -it -v /etc/mjolnir:/data mjolnir
+```
+
+## Build it
+
+This bot requires `yarn` and Node 10.
+
+```bash
+git clone https://github.com/matrix-org/mjolnir.git
+cd mjolnir
+
+yarn install
+yarn build
+
+# Copy and edit the config. It *is* recommended to change the data path.
+cp config/default.yaml config/development.yaml
+nano config/development.yaml
+
+node lib/index.js
+```
+
+## Development
+
+TODO. It's a TypeScript project with a linter.

config/default.yaml

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+# Where the homeserver is located (client-server URL)
+homeserverUrl: "https://matrix.org"
+
+# The access token for the bot to use
+accessToken: "YOUR_TOKEN_HERE"
+
+# The directory the bot should store various bits of information in
+dataPath: "/data/storage"
+
+# Whether the bot should autojoin rooms it is invited to or not
+autojoin: true

package.json

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+{
+  "name": "mjolnir",
+  "version": "0.1.0",
+  "description": "A moderation tool for Matrix",
+  "main": "lib/index.js",
+  "repository": "git@github.com:matrix-org/mjolnir.git",
+  "author": "The Matrix.org Foundation C.I.C.",
+  "license": "Apache-2.0",
+  "private": true,
+  "scripts": {
+    "build": "tsc",
+    "lint": "tslint --project ./tsconfig.json --type-check -t stylish",
+    "start:dev": "yarn build && node lib/index.js"
+  },
+  "devDependencies": {
+    "@types/node": "11",
+    "tslint": "^5.20.0",
+    "typescript": "^3.6.3"
+  },
+  "dependencies": {
+    "config": "^3.2.2",
+    "js-yaml": "^3.13.1",
+    "matrix-bot-sdk": "^0.4.0-beta.5"
+  }
+}

src/config.ts

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+/*
+Copyright 2019 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 * as config from "config";
+
+interface IConfig {
+    homeserverUrl: string;
+    accessToken: string;
+    dataPath: string;
+    autojoin: boolean;
+}
+
+export default <IConfig>config;

src/index.ts

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+/*
+Copyright 2019 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 * as path from "path";
+import {
+    AutojoinRoomsMixin,
+    LogService,
+    MatrixClient,
+    RichConsoleLogger,
+    SimpleFsStorageProvider
+} from "matrix-bot-sdk";
+import config from "./config";
+
+LogService.setLogger(new RichConsoleLogger());
+
+const storage = new SimpleFsStorageProvider(path.join(config.dataPath, "bot.json"));
+const client = new MatrixClient(config.homeserverUrl, config.accessToken, storage);
+
+if (config.autojoin) {
+    AutojoinRoomsMixin.setupOnClient(client);
+}
+
+client.on("room.message", async (roomId, event) => {
+    if (!event['content']) return;
+
+    const content = event['content'];
+    if (content['msgtype'] === 'm.text' && content['body'] === '!mjolnir') {
+        await client.sendNotice(roomId, "Hello world!");
+    }
+});
+
+client.start().then(() => LogService.info("index", "Bot started!"));

tsconfig.json

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+{
+    "compilerOptions": {
+        "experimentalDecorators": true,
+        "emitDecoratorMetadata": true,
+        "module": "commonjs",
+        "moduleResolution": "node",
+        "target": "es2015",
+        "noImplicitAny": false,
+        "sourceMap": true,
+        "outDir": "./lib",
+        "types": [
+            "node"
+        ]
+    },
+    "include": [
+        "./src/**/*"
+    ]
+}

tslint.json

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+{
+    "extends": "tslint:recommended",
+    "rules": {
+        "ordered-imports": false,
+        "no-trailing-whitespace": "error",
+        "max-classes-per-file": {
+            "severity": "warning"
+        },
+        "object-literal-sort-keys": "off",
+        "no-any": {
+            "severity": "warning"
+        },
+        "arrow-return-shorthand": true,
+        "no-magic-numbers": true,
+        "prefer-for-of": true,
+        "typedef": {
+            "severity": "warning"
+        },
+        "await-promise": true,
+        "curly": true,
+        "no-empty": {
+            "severity": "warning"
+        },
+        "no-invalid-this": true,
+        "no-string-throw": {
+            "severity": "warning"
+        },
+        "no-unused-expression": true,
+        "prefer-const": true
+    }
+}