From 429a5b2bc7f32e0a40cffe4923b7862e90e77d9c Mon Sep 17 00:00:00 2001
From: Simon Legander <simon.legander@gmail.com>
Date: Wed, 1 Apr 2020 16:36:02 +0200
Subject: [PATCH] [fix] move common logic to helper fn.

---
 src/aid.js                    | 7 ++++++-
 src/parse/request.js          | 4 ++--
 src/render/post/structured.js | 3 ++-
 src/validate/postData.js      | 4 ++--
 src/validate/request.js       | 6 +++---
 5 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/aid.js b/src/aid.js
index 3ee51dc0..85c78f7b 100644
--- a/src/aid.js
+++ b/src/aid.js
@@ -38,6 +38,10 @@ function parseContentType (str = '') {
   }
 }
 
+function getContentTypeValue (str = '') {
+  return str.split(';')[0]
+}
+
 function isBlacklistedHeader (headerName = '') {
   const HEADERS_BLACKLIST = ['Content-Length']
   const [name] = headerName.split(';')
@@ -59,5 +63,6 @@ module.exports = {
   isString,
   extrinsic,
   nought,
-  parseContentType
+  parseContentType,
+  getContentTypeValue
 }
diff --git a/src/parse/request.js b/src/parse/request.js
index 64b16e28..9b926757 100644
--- a/src/parse/request.js
+++ b/src/parse/request.js
@@ -2,7 +2,7 @@ const headers = require('./headers')
 const postData = require('./postData')
 const queryString = require('./queryString')
 const state = require('./state/request')
-const { emptyObject } = require('../aid')
+const { emptyObject, getContentTypeValue } = require('../aid')
 
 function request (node, spec) {
   spec.method = node.method.toUpperCase()
@@ -41,7 +41,7 @@ function addBoundary (boundary, headers) {
   if (headers.has('Content-Type')) {
     const items = [...headers.get('Content-Type').values()]
     const newItems = items.map(item => {
-      const value = item.value.split(';')[0]
+      const value = getContentTypeValue(item.value)
       if (value === 'multipart/form-data') {
         return { value: `${value}; boundary=${boundary}` }
       }
diff --git a/src/render/post/structured.js b/src/render/post/structured.js
index 643adce4..47eddf5e 100644
--- a/src/render/post/structured.js
+++ b/src/render/post/structured.js
@@ -1,9 +1,10 @@
 const multipart = require('./multipart')
 const url = require('./url')
 const { UnrecognizedError } = require('../../error')
+const { getContentTypeValue } = require('../../aid')
 
 function structured (spec) {
-  switch (spec.post.type.split(';')[0]) {
+  switch (getContentTypeValue(spec.post.type)) {
     case 'application/x-www-form-urlencoded':
       return url(spec)
     case 'multipart/form-data':
diff --git a/src/validate/postData.js b/src/validate/postData.js
index 46a066c4..36f33872 100644
--- a/src/validate/postData.js
+++ b/src/validate/postData.js
@@ -1,5 +1,5 @@
 const params = require('./params')
-const { empty, emptyObject, seralizeURLSearchParams } = require('../aid')
+const { empty, emptyObject, seralizeURLSearchParams, getContentTypeValue } = require('../aid')
 const { InvalidArchiveError } = require('../error')
 
 /*
@@ -76,7 +76,7 @@ function validate (node, i) {
     ![
       'application/x-www-form-urlencoded',
       'multipart/form-data'
-    ].includes(node.mimeType.split(';')[0])
+    ].includes(getContentTypeValue(node.mimeType))
   ) {
     throw new InvalidArchiveError(
       { name: 'InvalidPostDataType' },
diff --git a/src/validate/request.js b/src/validate/request.js
index ff7252d8..57d530f2 100644
--- a/src/validate/request.js
+++ b/src/validate/request.js
@@ -3,7 +3,7 @@ const headers = require('./headers')
 const isPlainObject = require('is-plain-object')
 const postData = require('./postData')
 const queryString = require('./queryString')
-const { empty, emptyObject } = require('../aid')
+const { empty, emptyObject, getContentTypeValue } = require('../aid')
 const { absoluteUrl, variableStart } = require('../expression')
 const { InvalidArchiveError } = require('../error')
 
@@ -116,8 +116,8 @@ function relation (node, i) {
     node.headers.findIndex(findContentType) !== -1
   ) {
     const header = node.headers.find(findContentType)
-    const headerType = header.value ? header.value.split(';')[0] : ''
-    const postType = node.postData.mimeType ? node.postData.mimeType.split(';')[0] : ''
+    const headerType = getContentTypeValue(header.value)
+    const postType = getContentTypeValue(node.postData.mimeType)
     if (headerType !== postType) {
       throw new InvalidArchiveError(
         { name: 'InconsistentContentType' },