From 5ac9ab1a7a00d7ecfeb39abce1c1e92de3709b12 Mon Sep 17 00:00:00 2001
From: rcatoio <rcatoio@wyplay.Com>
Date: Fri, 21 Oct 2016 09:20:57 +0200
Subject: [PATCH] add a way to download other format reports

---
 lib/handlers.js | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/lib/handlers.js b/lib/handlers.js
index 4492207..2116ab7 100644
--- a/lib/handlers.js
+++ b/lib/handlers.js
@@ -6,6 +6,7 @@ var path = require('path'),
     fs = require('fs'),
     core = require('./core'),
     istanbul = require('istanbul'),
+    FileWriter = istanbul.FileWriter,
     bodyParser = require('body-parser'),
     ASSETS_DIR = istanbul.assetsDir,
     existsSync = fs.existsSync || path.existsSync,
@@ -114,6 +115,51 @@ function createHandler(opts) {
         writer.done();
     });
 
+    app.get('/downloadFormat', function (req, res) {
+        var
+          availlableFormat = ['json', 'cobertura', 'clover', 'json-summary', 'lcovonly'],
+          writer = new FileWriter({sync: true}),
+          coverageObject = core.getCoverageObject() || {},
+          collector = new Collector(),
+          baseDir = opts.tmpDir || process.cwd(),
+          format = req.query.format || 'json',
+          file,
+          report;
+        if(availlableFormat.indexOf(format) === -1){
+            res.statusCode = '403';
+            return res.send();
+        }
+        report = Report.create(format,
+          {
+              writer: writer,
+              dir: baseDir
+          });
+
+        utils.removeDerivedInfo(coverageObject);
+        collector.add(coverageObject);
+
+        res.statusCode = 200;
+        res.setHeader('Content-type', 'application/octet-stream');
+        report.writeReport(collector);
+
+        if(report.file){
+            file = report.file;
+        } else if (report.opts && report.opts.file){
+            file = report.opts.file;
+        }
+        if(!file){
+            res.statusCode = '403';
+            return res.send();
+        }
+        var filePath = path.join(baseDir, file);
+        var stat = fs.statSync(filePath);
+        res.setHeader('Content-Disposition', 'attachment; filename='+file);
+        res.setHeader('Content-Length', stat.size);
+        fs.createReadStream(filePath).pipe(res).on('finish', function(){
+            fs.unlink(filePath);
+        });
+    });
+
     //merge client coverage posted from browser
     app.post('/client', function (req, res) {
         var body = req.body;