Spec update: allow percent-encoding in non-special URLs' hosts

Follows whatwg/url#218.

README.md

@@ -4,7 +4,7 @@ whatwg-url is a full implementation of the WHATWG [URL Standard](https://url.spe
 
 ## Current Status
 
-whatwg-url is currently up to date with the URL spec up to commit [cf616f](https://github.com/whatwg/url/commit/cf616f9d3fca44bd5329e992519a4236a39b0cb7).
+whatwg-url is currently up to date with the URL spec up to commit [cdbcce](https://github.com/whatwg/url/commit/cdbcce62045b1614695b00cc0427f6fb0fc7ed03).
 
 ## API
 

scripts/get-latest-platform-tests.js

@@ -14,7 +14,7 @@ const request = require("request");
 // 1. Go to https://github.com/w3c/web-platform-tests/tree/master/url
 // 2. Press "y" on your keyboard to get a permalink
 // 3. Copy the commit hash
-const commitHash = "0e6a90f2307694da7cd1e551852d25a75be3be11";
+const commitHash = "8f953c7cc884ae4277428fa8c72131563d31c590";
 
 const sourceURL = `https://raw.githubusercontent.com/w3c/web-platform-tests/${commitHash}/url/urltestdata.json`;
 const setterSourceURL = `https://raw.githubusercontent.com/w3c/web-platform-tests/${commitHash}/url/setters_tests.json`;

src/url-state-machine.js

@@ -68,6 +68,10 @@ function containsForbiddenHostCodePoint(string) {
   return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|%|\/|:|\?|@|\[|\\|\]/) !== -1;
 }
 
+function containsForbiddenHostCodePointExcludingPercent(string) {
+  return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|\/|:|\?|@|\[|\\|\]/) !== -1;
+}
+
 function isSpecialScheme(scheme) {
   return specialSchemes[scheme] !== undefined;
 }
@@ -385,7 +389,7 @@ function serializeIPv6(address) {
   return output;
 }
 
-function parseHost(input, isUnicode) {
+function parseHost(input, isSpecialArg, isUnicode) {
   if (input[0] === "[") {
     if (input[input.length - 1] !== "]") {
       return failure;
@@ -394,6 +398,10 @@ function parseHost(input, isUnicode) {
     return parseIPv6(input.substring(1, input.length - 1));
   }
 
+  if (!isSpecialArg) {
+    return parseOpaqueHost(input);
+  }
+
   const domain = utf8PercentDecode(input);
   const asciiDomain = tr46.toASCII(domain, false, tr46.PROCESSING_OPTIONS.TRANSITIONAL, false);
   if (asciiDomain === null) {
@@ -412,12 +420,8 @@ function parseHost(input, isUnicode) {
   return isUnicode ? tr46.toUnicode(asciiDomain, false).domain : asciiDomain;
 }
 
-function parseURLHost(input, isSpecialArg) {
-  if (isSpecialArg) {
-    return parseHost(input);
-  }
-
-  if (containsForbiddenHostCodePoint(input)) {
+function parseOpaqueHost(input) {
+  if (containsForbiddenHostCodePointExcludingPercent(input)) {
     return failure;
   }
 
@@ -818,7 +822,7 @@ URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) {
       return failure;
     }
 
-    const host = parseURLHost(this.buffer, isSpecial(this.url));
+    const host = parseHost(this.buffer, isSpecial(this.url));
     if (host === failure) {
       return failure;
     }
@@ -841,7 +845,7 @@ URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) {
       return false;
     }
 
-    const host = parseURLHost(this.buffer, isSpecial(this.url));
+    const host = parseHost(this.buffer, isSpecial(this.url));
     if (host === failure) {
       return failure;
     }
@@ -976,7 +980,7 @@ URLStateMachine.prototype["parse file host"] = function parseFileHost(c, cStr) {
       }
       this.state = "path start";
     } else {
-      let host = parseHost(this.buffer);
+      let host = parseHost(this.buffer, isSpecial(this.url));
       if (host === failure) {
         return failure;
       }