解离sandbox模块，完善迁移工具

hydro/loader.js

@@ -195,6 +195,25 @@ async function service() {
     }
 }
 
+async function script() {
+    for (const i of active) {
+        if (i.script && !i.fail) {
+            try {
+                console.time(`Script init: ${i.id}`);
+                const exports = {};
+                const module = { exports }; // eslint-disable-line no-unused-vars
+                eval(i.script);
+                console.timeEnd(`Script init: ${i.id}`);
+            } catch (e) {
+                i.fail = true;
+                fail.push(i.id);
+                console.error(`Script Load Fail: ${i.id}`);
+                console.error(e);
+            }
+        }
+    }
+}
+
 async function install() {
     const setup = require('./service/setup');
     await setup.setup();
@@ -279,6 +298,7 @@ async function load() {
     for (const i in global.Hydro.service) {
         if (global.Hydro.service[i].postInit) await global.Hydro.service[i].postInit();
     }
+    await script();
     await server.start();
 }
 

hydro/model/discussion.js

@@ -8,6 +8,7 @@ const db = require('../service/db.js');
 const coll = db.collection('discussion');
 const collReply = db.collection('discussion.reply');
 const collStatus = db.collection('discussion.status');
+const collNode = db.collection('discussion.node');
 
 async function add(parentType, parentId, owner, title, content, ip = null, highlight = false) {
     const res = await coll.insertOne({
@@ -132,6 +133,10 @@ function getStatus(did, uid) {
     return collStatus.findOne({ did, uid });
 }
 
+function getNode(_id) {
+    return collNode.findOne({ _id });
+}
+
 async function getVnode(ddoc, handler) {
     if (ddoc.parentType === 'problem') {
         const pdoc = await problem.getById(ddoc.parentId);
@@ -141,7 +146,11 @@ async function getVnode(ddoc, handler) {
     } if (ddoc.parentType === 'contest') {
         const tdoc = await contest.get(ddoc.parentId);
         return { ...tdoc, parentType: ddoc.parentType, parentId: ddoc.parentId };
-    } return null;
+    } if (ddoc.parentType === 'node') {
+        const ndoc = await getNode(ddoc.parentId);
+        return { ...ndoc, parentType: ddoc.parentType, parentId: ddoc.parentId };
+    }
+    return null;
 }
 
 async function getListVnodes(ddocs, handler) {