Share link header parsing code between blink and content.

net/http/http_util_unittest.cc

Index: net/http/http_util_unittest.cc
diff --git a/net/http/http_util_unittest.cc b/net/http/http_util_unittest.cc
index 2b456605d703ae7c5c7bb178d7b64ce4165e7e31..8df697a90d693a5a32d324174bf98e7ef67ab1f0 100644
--- a/net/http/http_util_unittest.cc
+++ b/net/http/http_util_unittest.cc
@@ -249,6 +249,40 @@ TEST(HttpUtilTest, Unquote) {
   EXPECT_STREQ("x\"", HttpUtil::Unquote("'x\"'").c_str());
 }
 
+TEST(HttpUtilTest, StrictUnquote) {
+  std::string out;
+
+  // Replace <backslash> " with ".
+  EXPECT_TRUE(HttpUtil::StrictUnquote("\"xyz\\\"abc\"", &out));
+  EXPECT_STREQ("xyz\"abc", out.c_str());
+
+  // Replace <backslash> <backslash> with <backslash>
+  EXPECT_TRUE(HttpUtil::StrictUnquote("\"xyz\\\\abc\"", &out));
+  EXPECT_STREQ("xyz\\abc", out.c_str());
+  EXPECT_TRUE(HttpUtil::StrictUnquote("\"xyz\\\\\\\\\\\\abc\"", &out));
+  EXPECT_STREQ("xyz\\\\\\abc", out.c_str());
+
+  // Replace <backslash> X with X
+  EXPECT_TRUE(HttpUtil::StrictUnquote("\"xyz\\Xabc\"", &out));
+  EXPECT_STREQ("xyzXabc", out.c_str());
+
+  // Return false on unquoted inputs.
+  EXPECT_FALSE(HttpUtil::StrictUnquote("X", &out));
+
+  // Return false on mismatched quotes.
+  EXPECT_FALSE(HttpUtil::StrictUnquote("\"", &out));
+  EXPECT_FALSE(HttpUtil::StrictUnquote("\"xyz", &out));
+  EXPECT_FALSE(HttpUtil::StrictUnquote("\"abc'", &out));
+
+  // Return false on escaped terminal quote.
+  EXPECT_FALSE(HttpUtil::StrictUnquote("\"abc\\\"", &out));
+
+  // Allow single quotes to act as quote marks.
+  // Not part of RFC 2616.
+  EXPECT_TRUE(HttpUtil::StrictUnquote("'x\"'", &out));
+  EXPECT_STREQ("x\"", out.c_str());
+}
+
 TEST(HttpUtilTest, Quote) {
   EXPECT_STREQ("\"xyz\\\"abc\"", HttpUtil::Quote("xyz\"abc").c_str());
 
@@ -1177,6 +1211,20 @@ TEST(HttpUtilTest, NameValuePairsIteratorMissingEndQuote) {
       &parser, false, true, std::string(), std::string()));
 }
 
+TEST(HttpUtilTest, NameValuePairsIteratorStrictQuotes) {
+  std::string data = "foo=\"bar\"; name='value";
+  HttpUtil::NameValuePairsIterator parser(
+      data.begin(), data.end(), ';',
+      HttpUtil::NameValuePairsIterator::VALUES_NOT_OPTIONAL,
+      HttpUtil::NameValuePairsIterator::STRICT_QUOTES);
+  EXPECT_TRUE(parser.valid());
+
+  ASSERT_NO_FATAL_FAILURE(
+      CheckNextNameValuePair(&parser, true, true, "foo", "bar"));
+  ASSERT_NO_FATAL_FAILURE(CheckNextNameValuePair(&parser, false, false,
+                                                 std::string(), std::string()));
+}
+
 TEST(HttpUtilTest, IsValidHeaderValueRFC7230) {
   EXPECT_TRUE(HttpUtil::IsValidHeaderValueRFC7230(""));