moved all sources to src directory

src/services/script.js

@@ -0,0 +1,29 @@
+const log = require('./log');
+const sql = require('./sql');
+const ScriptContext = require('./script_context');
+
+async function executeScript(noteId, dataKey, script, params) {
+    log.info('Executing script: ' + script);
+
+    const ctx = new ScriptContext(noteId, dataKey);
+
+    const paramsStr = getParams(params);
+
+    let ret;
+
+    await sql.doInTransaction(async () => {
+        ret = await (function() { return eval(`(${script})(${paramsStr})`); }.call(ctx));
+    });
+
+    log.info('Execution result: ' + ret);
+
+    return ret;
+}
+
+function getParams(params) {
+    return params.map(p => JSON.stringify(p)).join(",");
+}
+
+module.exports = {
+    executeScript
+};