Bug 1275746 - Don't allow empty host name for URLTYPE_AUTHORITY URLs r=mcmanus

* Return NS_ERROR_MALFORMED_URI if mURLType is URLTYPE_AUTHORITY and the hostname is empty.
* Make sure nsStandardURL::SetFile calls init with the correct arguments

MozReview-Commit-ID: 7t3mZtAbMF3

netwerk/base/nsStandardURL.cpp

@@ -1554,6 +1554,11 @@ nsStandardURL::SetSpec(const nsACString &input)
         rv = BuildNormalizedSpec(spec);
     }
 
+    // Make sure that a URLTYPE_AUTHORITY has a non-empty hostname.
+    if (mURLType == URLTYPE_AUTHORITY && mHost.mLen == -1) {
+        rv = NS_ERROR_MALFORMED_URI;
+    }
+
     if (NS_FAILED(rv)) {
         Clear();
         // If parsing the spec has failed, restore the old URL
@@ -3182,20 +3187,26 @@ nsStandardURL::SetFile(nsIFile *file)
     rv = net_GetURLSpecFromFile(file, url);
     if (NS_FAILED(rv)) return rv;
 
-    SetSpec(url);
+    uint32_t oldURLType = mURLType;
+    uint32_t oldDefaultPort = mDefaultPort;
+    rv = Init(nsIStandardURL::URLTYPE_NO_AUTHORITY, -1, url, nullptr, nullptr);
 
-    rv = Init(mURLType, mDefaultPort, url, nullptr, nullptr);
+    if (NS_FAILED(rv)) {
+        // Restore the old url type and default port if the call to Init fails.
+        mURLType = oldURLType;
+        mDefaultPort = oldDefaultPort;
+        return rv;
+    }
 
     // must clone |file| since its value is not guaranteed to remain constant
-    if (NS_SUCCEEDED(rv)) {
-        InvalidateCache();
-        if (NS_FAILED(file->Clone(getter_AddRefs(mFile)))) {
-            NS_WARNING("nsIFile::Clone failed");
-            // failure to clone is not fatal (GetFile will generate mFile)
-            mFile = nullptr;
-        }
+    InvalidateCache();
+    if (NS_FAILED(file->Clone(getter_AddRefs(mFile)))) {
+        NS_WARNING("nsIFile::Clone failed");
+        // failure to clone is not fatal (GetFile will generate mFile)
+        mFile = nullptr;
     }
-    return rv;
+
+    return NS_OK;
 }
 
 //----------------------------------------------------------------------------

netwerk/test/unit/test_URIs.js

@@ -92,18 +92,6 @@ var gTests = [
     ref:     "",
     relativeURI: "data/text/plain,2",
     nsIURL:  true, nsINestedURI: false },
-  { spec:    "ftp://",
-    scheme:  "ftp",
-    prePath: "ftp://",
-    path:    "/",
-    ref:     "",
-    nsIURL:  true, nsINestedURI: false },
-  { spec:    "ftp:///",
-    scheme:  "ftp",
-    prePath: "ftp://",
-    path:    "/",
-    ref:     "",
-    nsIURL:  true, nsINestedURI: false },
   { spec:    "ftp://ftp.mozilla.org/pub/mozilla.org/README",
     scheme:  "ftp",
     prePath: "ftp://ftp.mozilla.org",
@@ -135,18 +123,6 @@ var gTests = [
     path:    "//mozilla.org/",
     ref:     "",
     nsIURL:  false, nsINestedURI: false },
-  { spec:    "http://",
-    scheme:  "http",
-    prePath: "http://",
-    path:    "/",
-    ref:     "",
-    nsIURL:  true, nsINestedURI: false },
-  { spec:    "http:///",
-    scheme:  "http",
-    prePath: "http://",
-    path:    "/",
-    ref:     "",
-    nsIURL:  true, nsINestedURI: false },
   { spec:    "http://www.example.com/",
     scheme:  "http",
     prePath: "http://www.example.com",

netwerk/test/unit/test_standardurl.js

@@ -333,6 +333,14 @@ add_test(function test_backslashReplacement()
   run_next_test();
 });
 
+add_test(function test_authority_host()
+{
+  Assert.throws(() => { stringToURL("http:"); }, "TYPE_AUTHORITY should have host");
+  Assert.throws(() => { stringToURL("http:///"); }, "TYPE_AUTHORITY should have host");
+
+  run_next_test();
+});
+
 add_test(function test_trim_C0_and_space()
 {
   var url = stringToURL("\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f http://example.com/ \x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f ");