Spec update: cleanup API for file and non-special URLs

Follows whatwg/url#224.

Author: domenic

lib/URL-impl.js

@@ -54,7 +54,7 @@ exports.implementation = class URLImpl {
   }
 
   set username(v) {
-    if (this._url.host === null || this._url.cannotBeABaseURL) {
+    if (this._url.host === null || this._url.host === "" || this._url.cannotBeABaseURL || this._url.scheme === "file") {
       return;
     }
 
@@ -66,7 +66,7 @@ exports.implementation = class URLImpl {
   }
 
   set password(v) {
-    if (this._url.host === null || this._url.cannotBeABaseURL) {
+    if (this._url.host === null || this._url.host === "" || this._url.cannotBeABaseURL || this._url.scheme === "file") {
       return;
     }
 
@@ -92,7 +92,9 @@ exports.implementation = class URLImpl {
       return;
     }
 
-    usm.basicURLParse(v, { url: this._url, stateOverride: "host" });
+    const hostState = this._url.scheme === "file" ? "file host" : "host";
+
+    usm.basicURLParse(v, { url: this._url, stateOverride: hostState });
   }
 
   get hostname() {
@@ -108,7 +110,9 @@ exports.implementation = class URLImpl {
       return;
     }
 
-    usm.basicURLParse(v, { url: this._url, stateOverride: "hostname" });
+    const hostState = this._url.scheme === "file" ? "file host" : "hostname";
+
+    usm.basicURLParse(v, { url: this._url, stateOverride: hostState });
   }
 
   get port() {
@@ -120,7 +124,7 @@ exports.implementation = class URLImpl {
   }
 
   set port(v) {
-    if (this._url.host === null || this._url.cannotBeABaseURL || this._url.scheme === "file") {
+    if (this._url.host === null || this._url.host === "" || this._url.cannotBeABaseURL || this._url.scheme === "file") {
       return;
     }
 

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 = "8be87380efb01f5fde485511b8df80fce93090d5";
+const commitHash = "512b95eae6cbfdef4c6faf4d167aaf72671f35ea";
 
 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

@@ -824,6 +824,10 @@ URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) {
     if (isSpecial(this.url) && this.buffer === "") {
       this.parseError = true;
       return failure;
+    } else if (this.stateOverride && this.buffer === "" &&
+               (this.url.username === "" || this.url.password === "" || this.url.port !== null)) {
+      this.parseError = true;
+      return false;
     }
 
     const host = parseURLHost(this.buffer, isSpecial(this.url));
@@ -948,19 +952,31 @@ URLStateMachine.prototype["parse file slash"] = function parseFileSlash(c) {
 URLStateMachine.prototype["parse file host"] = function parseFileHost(c, cStr) {
   if (isNaN(c) || c === p("/") || c === p("\\") || c === p("?") || c === p("#")) {
     --this.pointer;
-    // don't need to count symbols here since we check ASCII values
-    if (isWindowsDriveLetterString(this.buffer)) {
+    if (!this.stateOverride && isWindowsDriveLetterString(this.buffer)) {
       this.parseError = true;
       this.state = "path";
     } else if (this.buffer === "") {
+      if (this.stateOverride && (this.url.username !== "" || this.url.password !== "")) {
+        this.parseError = true;
+        return false;
+      }
+      this.url.host = "";
+      if (this.stateOverride) {
+        return false;
+      }
       this.state = "path start";
     } else {
-      const host = parseHost(this.buffer);
+      let host = parseHost(this.buffer);
       if (host === failure) {
         return failure;
       }
-      if (host !== "localhost") {
-        this.url.host = host;
+      if (host === "localhost") {
+        host = "";
+      }
+      this.url.host = host;
+
+      if (this.stateOverride) {
+        return false;
       }
 
       this.buffer = "";