Add option to log in with BotCore

package.json

@@ -10,6 +10,7 @@
     "test": "echo test | mnotify",
     "init": "mnotify --init",
     "help": "mnotify --help",
+    "botcore": "mnotify --using-botcore",
     "postinstall": "src/postinstall.js"
   },
   "repository": {
@@ -29,10 +30,11 @@
   },
   "homepage": "https://github.com/AstroCB/mnotify#readme",
   "dependencies": {
-    "chalk": "^4.0.0",
+    "chalk": "^4.1.0",
     "command-line-args": "^5.1.1",
     "command-line-usage": "^6.1.0",
     "facebook-chat-api": "^1.8.0",
+    "messenger-botcore": "^2.2.0",
     "readline-sync": "^1.4.10"
   }
 }

src/mnotify.js

@@ -19,7 +19,8 @@ const argDefs = [
     { "name": "init", "type": Boolean, "description": "Initialize mnotify so that it can be used to send notifications." },
     { "name": "help", "alias": "h", "type": Boolean, "description": "Display this help message." },
     { "name": "check-login", "alias": "c", "type": Boolean, "description": "Check whether your currently-stored login information is valid." },
-    { "name": "update-password", "alias": "p", "type": String, "description": "Update your sending account's password without re-running init." }
+    { "name": "update-password", "alias": "p", "type": String, "description": "Update your sending account's password without re-running init." },
+    { "name": "using-botcore", "alias": "b", "type": Boolean, "description": `Process sender account logins using BotCore ({underline https://github.com/AstroCB/BotCore}) instead of a raw username/password. You must still run ${chalk.blue("mnotify --init")} before using this command in order to configure the receiver's account.`}
 ];
 
 const helpSections = [
@@ -146,6 +147,14 @@ if (require.main === module) {
         });
     } else if (options["update-password"]) {
         tools.updatePassword(options["update-password"]);
+    } else if (options["using-botcore"]) {
+        tools.botcoreLogin(err => {
+            if (err) {
+                console.log(chalk.red(err));
+            } else {
+                start();
+            }
+        });
     } else {
         start();
     }

src/tools.js

@@ -1,6 +1,7 @@
 const fs = require("fs");
 const chalk = require("chalk");
 const login = require("facebook-chat-api");
+const botcore = require("messenger-botcore");
 
 // Location of config directory (respects user settings)
 exports.getConfigDir = () => {
@@ -25,8 +26,8 @@ exports.loadConfig = () => {
     }
 }
 
-exports.saveConfig = config => {
-    fs.writeFile(exports.getConfigPath(), JSON.stringify(config), () => { });
+exports.saveConfig = (config, callback = () => { }) => {
+    fs.writeFile(exports.getConfigPath(), JSON.stringify(config), callback);
 }
 
 exports.printNoConfigError = () => {
@@ -91,6 +92,43 @@ exports.checkLogin = (fail, succeed) => {
     }
 }
 
+exports.botcoreLogin = callback => {
+    const requiredVars = ["MEMCACHIER_USERNAME", "MEMCACHIER_SERVERS", "MEMCACHIER_PASSWORD"];
+    requiredVars.forEach(v => {
+        if (!process.env[v]) {
+            return callback(`Failed to access BotCore; make sure your required credentials [${requiredVars.join(", ")}]\
+are stored as environment variables: https://github.com/AstroCB/BotCore/blob/master/DOCS.md#credentialsobj`);
+        }
+    });
+
+    botcore.login.login(process.env, (err, api) => {
+        if (err) {
+            callback(`Error with login: ${err}`);
+        } else {
+            // Close out BotCore memcache connection to avoid hanging
+            const mem = botcore.login.getMemCache();
+            if (mem) {
+                mem.close();
+            }
+
+            let config;
+            try {
+                config = this.loadConfig();
+            } catch {
+                console.log(chalk.yellow(`Error loading config; even when logging in with BotCore,\
+you must still configure mnotify to set up the receiver's account.`));
+
+                // Call with no error anyway to passthrough to the default init that happens in start()
+                return callback(null);
+            }
+
+            // Update the login in the config
+            config.appState = api.getAppState();
+            this.saveConfig(config, callback);
+        }
+    });
+}
+
 // Stored options for common invocations
 
 exports.silentOpt = {