+ redirect table support

redirect.tsv

@@ -0,0 +1,6 @@
+/document/statue-2013   https://static.shburg.org/art/uploads/ustav-shkoly-2013.pdf
+/document/edu-license   https://static.shburg.org/art/uploads/obrazovatelnaya-lizenziya.pdf
+/document/gov-certificate   https://static.shburg.org/art/uploads/svidetelstvo-na-pomeschenie.pdf
+/document/VAT   https://static.shburg.org/art/uploads/inn.pdf
+/document/EGRYL1    https://static.shburg.org/art/uploads/egryul.pdf
+/document/EGRYL2    https://static.shburg.org/art/uploads/egryul.pdf

src/config.js

@@ -37,4 +37,16 @@ export default Object.keys(privateData)
     .reduce((config, key) => {
         config[key] = privateData[key];
         return config;
-    }, config);
+    }, config);
+
+let redirectPath = path.join(__dirname, '../redirect.tsv');
+export const redirectionTable = fs.readFileSync(redirectPath, 'utf-8')
+    .split('\n')
+    .map(row => row.split(/\s+/))
+    .map(row => {
+        let [from, to] = row;
+        return {
+            'url': from,
+            'redirect': to
+        }
+    });

src/routes/redirect.js

@@ -0,0 +1,19 @@
+/**
+ *
+ * @param redirectionTable
+ * [{String url, String redirect}, ...]
+ * @returns {*}
+ */
+export function redirect(redirectionTable) {
+    return function *(next) {
+        let path = this.request.path;
+
+        let record = redirectionTable.find(i => i.url === path);
+        if(record){
+            this.redirect(record.redirect);
+            return;
+        }
+
+        yield next;
+    };
+}

src/server.js

@@ -10,7 +10,9 @@ import helmet from 'koa-helmet';
 import bodyParser from 'koa-bodyparser';
 
 import config from './config';
+import {redirectionTable} from './config';
 import {index, queryObject} from './routes';
+import {redirect} from './routes/redirect';
 
 import sitemap from './routes/sitemap';
 import schedule from './routes/schedule';
@@ -42,6 +44,7 @@ app.use(function *(next) {
 app.use(prerender(config.prerender));
 app.use(serve(path.join(__dirname, '../public')));
 app.use(serve(path.join(__dirname, 'templates')));
+app.use(redirect(redirectionTable));
 app.use(helmet());
 app.use(queryObject());
 app.use(route.get('/', index()));