Implement WebSocketExtensionParser

net/websockets/websocket_extension_parser_test.cc

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/websockets/websocket_extension_parser.h"
+
+#include <string>
+
+#include "net/websockets/websocket_extension.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace net {
+
+namespace {
+
+TEST(WebSocketExtensionParserTest, ParseEmpty) {
+  WebSocketExtensionParser parser;
+  parser.Parse("", 0);
+
+  EXPECT_TRUE(parser.has_error());
+}
+
+TEST(WebSocketExtensionParserTest, ParseSimple) {
+  WebSocketExtensionParser parser;
+  WebSocketExtension expected("foo");
+
+  parser.Parse("foo");
+
+  ASSERT_FALSE(parser.has_error());
+  EXPECT_TRUE(expected.Equals(parser.extension()));
+}
+
+TEST(WebSocketExtensionParserTest, ParseOneExtensionWithOneParamWithoutValue) {
+  WebSocketExtensionParser parser;
+  WebSocketExtension expected("foo");
+  expected.Add(WebSocketExtension::Parameter("bar"));
+
+  parser.Parse("\tfoo ; bar");
+
+  ASSERT_FALSE(parser.has_error());
+  EXPECT_TRUE(expected.Equals(parser.extension()));
+}
+
+TEST(WebSocketExtensionParserTest, ParseOneExtensionWithOneParamWithValue) {
+  WebSocketExtensionParser parser;
+  WebSocketExtension expected("foo");
+  expected.Add(WebSocketExtension::Parameter("bar", "baz"));
+
+  parser.Parse("foo ; bar= baz\t");

[tyoshino (SeeGerritForStatus), 2013/09/19 03:53:43]

test
foo; bar= "baz"
please

[yhirano, 2013/09/19 04:16:19]

We have a test case
 foo; bar="ba\z"
as QuotedParameterValue. Is that sufficient?

[tyoshino (SeeGerritForStatus), 2013/09/19 04:39:32]

To check that LookAhead skips space though the code looks correct.

[yhirano, 2013/09/19 04:43:00]

Done in PS12

+
+  ASSERT_FALSE(parser.has_error());
+  EXPECT_TRUE(expected.Equals(parser.extension()));
+}
+
+TEST(WebSocketExtensionParserTest, ParseOneExtensionWithParams) {
+  WebSocketExtensionParser parser;
+  WebSocketExtension expected("foo");
+  expected.Add(WebSocketExtension::Parameter("bar", "baz"));
+  expected.Add(WebSocketExtension::Parameter("hoge", "fuga"));
+
+  parser.Parse("foo ; bar= baz;\t \thoge\t\t=fuga");
+
+  ASSERT_FALSE(parser.has_error());
+  EXPECT_TRUE(expected.Equals(parser.extension()));
+}
+
+TEST(WebSocketExtensionParserTest, InvalidPatterns) {
+  const char* patterns[] = {
+    "fo\ao",  // control in extension name
+    "fo\x01o",  // control in extension name
+    "fo<o",  // separator in extension name
+    "foo/",  // separator in extension name
+    ";bar",  // empty extension name
+    "foo bar",  // missing ';'
+    "foo;",  // extension parameter without name and value
+    "foo; b\ar",  // control in parameter name
+    "foo; b\x7fr",  // control in parameter name
+    "foo; b[r",  // separator in parameter name
+    "foo; ba:",  // separator in parameter name
+    "foo; =baz",  // empty parameter name
+    "foo; bar=",  // empty parameter value
+    "foo; =",  // empty parameter name and value
+    "foo; bar=b\x02z",  // control in parameter value
+    "foo; bar=b@z",  // separator in parameter value
+    "foo; bar=b\\z",  // separator in parameter value
+    "foo; bar=b?z",  // separator in parameter value
+    "\"foo\"",  // quoted extension name
+    "foo; \"bar\"",  // quoted parameter name
+    "foo; bar=\"\a2\"",  // control in quoted parameter value
+    "foo; bar=\"b@z\"",  // separator in quoted parameter value
+    "foo; bar=\"b\\\\z\"",  // separator in quoted parameter value
+    "foo; bar=\"\"",  // quoted emptyparameter value
+    "foo; bar=\"baz",  // unterminated quoted string
+    "foo; bar=\"baz \"",  // space in quoted string
+    "foo; bar baz",  // mising '='
+    "foo; bar - baz",  // '-' instead of '=' (note: "foo; bar-baz" is valid).
+    "foo; bar=\r\nbaz",  // CRNL not followed by a space
+    "foo; bar=\r\n baz",  // CRNL followed by a space
+    "foo, bar"  // multiple extensions
+  };
+
+  for (size_t i = 0; i < arraysize(patterns); ++i) {
+    WebSocketExtensionParser parser;
+    parser.Parse(patterns[i]);
+    EXPECT_TRUE(parser.has_error());
+  }
+}
+
+TEST(WebSocketExtensionParserTest, QuotedParameterValue) {
+  WebSocketExtensionParser parser;
+  WebSocketExtension expected("foo");
+  expected.Add(WebSocketExtension::Parameter("bar", "baz"));
+
+  parser.Parse("foo; bar=\"ba\\z\"");
+
+  ASSERT_FALSE(parser.has_error());
+  EXPECT_TRUE(expected.Equals(parser.extension()));
+}
+
+}  // namespace
+
+}  // namespace net