Move extension-wrapper to bin

bin/genieacs-ext

@@ -0,0 +1,90 @@
+#!/usr/bin/env -S node -r esm
+/**
+ * Copyright 2013-2018  Zaid Abdulla
+ *
+ * This file is part of GenieACS.
+ *
+ * GenieACS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * GenieACS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with GenieACS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+"use strict";
+
+const jobs = new Set();
+const fileName = process.argv[2];
+let script;
+
+function errorToFault(err) {
+  if (!err) return null;
+
+  if (!err.name) return { code: "ext", message: `${err}` };
+
+  const fault = {
+    code: `ext.${err.name}`,
+    message: err.message,
+    detail: {
+      name: err.name,
+      message: err.message
+    }
+  };
+
+  if (err.stack) {
+    fault.detail.stack = err.stack;
+    // Trim the stack trace
+    const stackTrimIndex = fault.detail.stack.match(
+      /\s+at\s[^\s]+\s\(.*genieacs-ext:.+\)/
+    );
+    if (stackTrimIndex)
+      fault.detail.stack = fault.detail.stack.slice(0, stackTrimIndex.index);
+  }
+
+  return fault;
+}
+
+process.on("uncaughtException", err => {
+  const fault = errorToFault(err);
+  jobs.forEach(jobId => {
+    process.send([jobId, fault]);
+  });
+  jobs.clear();
+  process.disconnect();
+});
+
+process.on("message", message => {
+  jobs.add(message[0]);
+
+  if (!script) {
+    const cwd = process.env["GENIEACS_CONFIG_DIR"] + "/ext";
+    process.chdir(cwd);
+    script = require(`${cwd}/${fileName}`);
+  }
+
+  const funcName = message[1][0];
+
+  if (!script[funcName]) {
+    const fault = {
+      code: "ext",
+      message: `No such function '${funcName}' in extension '${fileName}'`
+    };
+    process.send([message[0], fault]);
+    return;
+  }
+
+  script[funcName](message[1].slice(1), (err, res) => {
+    if (!jobs.delete(message[0])) return;
+
+    process.send([message[0], errorToFault(err), res]);
+  });
+});
+
+// Ignore SIGINT
+process.on("SIGINT", () => {});