Merge 379a545 into 33e5ac9

lib/ponse.js

@@ -8,6 +8,7 @@ const {unescape} = require('querystring');
 const {lstat} = require('fs').promises;
 
 const type = require('itype');
+const filetype = require('file-type');
 const tryToCatch = require('try-to-catch');
 const files = require('files-io');
 
@@ -217,6 +218,11 @@ async function sendFile(params) {
     if (!isGzip)
         p.length = length;
 
+    const [, type] = await tryToCatch(filetype.fromFile, p.name);
+
+    if (type)
+        p.mime = type.mime;
+
     setHeader(params);
 
     const options = {
@@ -359,4 +365,3 @@ function getStatic(options, request, response) {
         response,
     });
 }
-

package.json

@@ -38,6 +38,7 @@
   },
   "dependencies": {
     "debug": "^4.1.0",
+    "file-type": "^14.2.0",
     "files-io": "^3.0.0",
     "itype": "^3.0.1",
     "try-to-catch": "^3.0.0"

test/fixtures/mimetype/hello.txt

@@ -0,0 +1 @@
+Hello, world!

test/ponse.js

@@ -13,6 +13,8 @@ const {
 
 const {request} = require('serve-once')(ponse.static);
 
+const {keys} = Object;
+
 test('ponse: path traversal: status', async (t) => {
     const {status} = await request.get('/../../../../../../etc/passwd', {
         options: {
@@ -112,3 +114,27 @@ test('ponse: send', (t) => {
     t.end();
 });
 
+test('ponse: get: content-type', async (t) => {
+    const filesToMimes = {
+        '320px-Floppy_disk_2009_G1' : 'image/jpeg',
+        '320px-Floppy_disk_2009_G1.jpg' : 'image/jpeg',
+        '294px-Railroad1860.png' : 'image/png',
+        '294px-Railroad1860' : 'image/png',
+        'hello.txt' : 'text/plain; charset=UTF-8',
+    };
+
+    for (const file of keys(filesToMimes)) {
+        const {headers} = await request.get('/' + file, {
+            options: {
+                root: __dirname + '/../test/fixtures/mimetype/',
+            },
+        });
+
+        const reportedMime = headers.get('content-type');
+        const expect = filesToMimes[file];
+
+        t.equal(reportedMime, expect, 'should equal');
+    }
+
+    t.end();
+});