fix: compatible extra semicolon on content-type header (#153)

.github/workflows/nodejs.yml

@@ -0,0 +1,15 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  Job:
+    name: Node.js
+    uses: node-modules/github-actions/.github/workflows/node-test.yml@master
+    with:
+      version: '12, 14, 16, 18, 20'

index.js

@@ -1,21 +1,8 @@
-/** !
- * koa-body-parser - index.js
- * Copyright(c) 2014
- * MIT Licensed
- *
- * Authors:
- *   dead_horse <dead_horse@qq.com> (http://deadhorse.me)
- *   fengmk2 <m@fengmk2.com> (http://fengmk2.com)
- */
-
 'use strict';
 
-/**
- * Module dependencies.
- */
-
 const parse = require('co-body');
 const copy = require('copy-to');
+const typeis = require('type-is');
 
 /**
  * @param [Object] opts
@@ -94,7 +81,8 @@ module.exports = function(opts) {
   async function parseBody(ctx) {
     if (
       enableJson &&
-      ((detectJSON && detectJSON(ctx)) || ctx.request.is(jsonTypes))
+      ((detectJSON && detectJSON(ctx)) ||
+        isTypes(ctx.request.get('content-type'), jsonTypes))
     ) {
       return await parse.json(ctx, jsonOpts); // eslint-disable-line no-return-await
     }
@@ -137,3 +125,12 @@ function extendType(original, extend) {
 function checkEnable(types, type) {
   return types.includes(type);
 }
+
+function isTypes(contentTypeValue, types) {
+  if (typeof contentTypeValue === 'string') {
+    // trim extra semicolon
+    contentTypeValue = contentTypeValue.replace(/;$/, '');
+  }
+
+  return typeis.is(contentTypeValue, types);
+}

package.json

@@ -8,7 +8,7 @@
     "lint:fix": "xo --fix",
     "test": "mocha --require should test/*.spec.js --exit",
     "coverage": "nyc npm run test --reporter=lcov",
-    "test-ci": "npm run lint && npm run coverage"
+    "ci": "npm run lint && npm run coverage"
   },
   "repository": {
     "type": "git",
@@ -34,15 +34,16 @@
     "eslint-config-xo-lass": "^1.0.3",
     "husky": "^4.2.5",
     "koa": "^2",
-    "mocha": "^7.1.1",
+    "mocha": "^10.2.0",
     "nyc": "^15.0.1",
     "should": "^13.2.3",
     "supertest": "^4.0.2",
     "xo": "0.25.4"
   },
   "dependencies": {
     "co-body": "^6.0.0",
-    "copy-to": "^2.0.1"
+    "copy-to": "^2.0.1",
+    "type-is": "^1.6.18"
   },
   "xo": {
     "prettier": true,

test/middleware.spec.js

@@ -1,20 +1,3 @@
-/** !
- * koa-body-parser - test/middleware.test.js
- *
- * Copyright(c) 2014
- * MIT Licensed
- *
- * Authors:
- *   dead_horse <dead_horse@qq.com> (http://deadhorse.me)
- *   fengmk2 <m@fengmk2.com> (http://fengmk2.com)
- */
-
-'use strict';
-
-/**
- * Module dependencies.
- */
-
 const path = require('path');
 const request = require('supertest');
 const Koa = require('koa');
@@ -61,6 +44,21 @@ describe('test/middleware.test.js', function() {
         .expect({foo: 'bar'}, done);
     });
 
+    it('should parse json body with `content-type: application/json;charset=utf-8;` headers ok', async () => {
+      app.use(bodyParser());
+
+      app.use(async ctx => {
+        ctx.request.body.should.eql({foo: 'bar'});
+        ctx.request.rawBody.should.equal('{"foo": "bar"}');
+        ctx.body = ctx.request.body;
+      });
+      await request(app.listen())
+        .post('/')
+        .set('Content-type', 'application/json;charset=utf-8;')
+        .send('{"foo": "bar"}')
+        .expect({foo: 'bar'});
+    });
+
     it('should parse json patch', function(done) {
       const app = App();
       app.use(async ctx => {