Move googleurl into the Chrome repo.

url/url_util_unittest.cc

+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "googleurl/src/url_canon.h"
+#include "googleurl/src/url_canon_stdstring.h"
+#include "googleurl/src/url_parse.h"
+#include "googleurl/src/url_test_utils.h"
+#include "googleurl/src/url_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(URLUtilTest, FindAndCompareScheme) {
+  url_parse::Component found_scheme;
+
+  // Simple case where the scheme is found and matches.
+  const char kStr1[] = "http://www.com/";
+  EXPECT_TRUE(url_util::FindAndCompareScheme(
+      kStr1, static_cast<int>(strlen(kStr1)), "http", NULL));
+  EXPECT_TRUE(url_util::FindAndCompareScheme(
+      kStr1, static_cast<int>(strlen(kStr1)), "http", &found_scheme));
+  EXPECT_TRUE(found_scheme == url_parse::Component(0, 4));
+
+  // A case where the scheme is found and doesn't match.
+  EXPECT_FALSE(url_util::FindAndCompareScheme(
+      kStr1, static_cast<int>(strlen(kStr1)), "https", &found_scheme));
+  EXPECT_TRUE(found_scheme == url_parse::Component(0, 4));
+
+  // A case where there is no scheme.
+  const char kStr2[] = "httpfoobar";
+  EXPECT_FALSE(url_util::FindAndCompareScheme(
+      kStr2, static_cast<int>(strlen(kStr2)), "http", &found_scheme));
+  EXPECT_TRUE(found_scheme == url_parse::Component());
+
+  // When there is an empty scheme, it should match the empty scheme.
+  const char kStr3[] = ":foo.com/";
+  EXPECT_TRUE(url_util::FindAndCompareScheme(
+      kStr3, static_cast<int>(strlen(kStr3)), "", &found_scheme));
+  EXPECT_TRUE(found_scheme == url_parse::Component(0, 0));
+
+  // But when there is no scheme, it should fail.
+  EXPECT_FALSE(url_util::FindAndCompareScheme("", 0, "", &found_scheme));
+  EXPECT_TRUE(found_scheme == url_parse::Component());
+
+  // When there is a whitespace char in scheme, it should canonicalize the url
+  // before comparison.
+  const char whtspc_str[] = " \r\n\tjav\ra\nscri\tpt:alert(1)";
+  EXPECT_TRUE(url_util::FindAndCompareScheme(
+      whtspc_str, static_cast<int>(strlen(whtspc_str)), "javascript",
+      &found_scheme));
+  EXPECT_TRUE(found_scheme == url_parse::Component(1, 10));
+
+  // Control characters should be stripped out on the ends, and kept in the
+  // middle.
+  const char ctrl_str[] = "\02jav\02scr\03ipt:alert(1)";
+  EXPECT_FALSE(url_util::FindAndCompareScheme(
+      ctrl_str, static_cast<int>(strlen(ctrl_str)), "javascript",
+      &found_scheme));
+  EXPECT_TRUE(found_scheme == url_parse::Component(1, 11));
+}
+
+TEST(URLUtilTest, ReplaceComponents) {
+  url_parse::Parsed parsed;
+  url_canon::RawCanonOutputT<char> output;
+  url_parse::Parsed new_parsed;
+
+  // Check that the following calls do not cause crash
+  url_canon::Replacements<char> replacements;
+  replacements.SetRef("test", url_parse::Component(0, 4));
+  url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+  url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+  replacements.ClearRef();
+  replacements.SetHost("test", url_parse::Component(0, 4));
+  url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+  url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+
+  replacements.ClearHost();
+  url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+  url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+  url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+  url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
+                              &new_parsed);
+}
+
+static std::string CheckReplaceScheme(const char* base_url,
+                                      const char* scheme) {
+  // Make sure the input is canonicalized.
+  url_canon::RawCanonOutput<32> original;
+  url_parse::Parsed original_parsed;
+  url_util::Canonicalize(base_url, strlen(base_url), NULL,
+                         &original, &original_parsed);
+
+  url_canon::Replacements<char> replacements;
+  replacements.SetScheme(scheme, url_parse::Component(0, strlen(scheme)));
+
+  std::string output_string;
+  url_canon::StdStringCanonOutput output(&output_string);
+  url_parse::Parsed output_parsed;
+  url_util::ReplaceComponents(original.data(), original.length(),
+                              original_parsed, replacements, NULL,
+                              &output, &output_parsed);
+
+  output.Complete();
+  return output_string;
+}
+
+TEST(URLUtilTest, ReplaceScheme) {
+  EXPECT_EQ("https://google.com/",
+            CheckReplaceScheme("http://google.com/", "https"));
+  EXPECT_EQ("file://google.com/",
+            CheckReplaceScheme("http://google.com/", "file"));
+  EXPECT_EQ("http://home/Build",
+            CheckReplaceScheme("file:///Home/Build", "http"));
+  EXPECT_EQ("javascript:foo",
+            CheckReplaceScheme("about:foo", "javascript"));
+  EXPECT_EQ("://google.com/",
+            CheckReplaceScheme("http://google.com/", ""));
+  EXPECT_EQ("http://google.com/",
+            CheckReplaceScheme("about:google.com", "http"));
+  EXPECT_EQ("http:", CheckReplaceScheme("", "http"));
+
+#ifdef WIN32
+  // Magic Windows drive letter behavior when converting to a file URL.
+  EXPECT_EQ("file:///E:/foo/",
+            CheckReplaceScheme("http://localhost/e:foo/", "file"));
+#endif
+
+  // This will probably change to "about://google.com/" when we fix
+  // http://crbug.com/160 which should also be an acceptable result.
+  EXPECT_EQ("about://google.com/",
+            CheckReplaceScheme("http://google.com/", "about"));
+}
+
+TEST(URLUtilTest, DecodeURLEscapeSequences) {
+  struct DecodeCase {
+    const char* input;
+    const char* output;
+  } decode_cases[] = {
+    {"hello, world", "hello, world"},
+    {"%01%02%03%04%05%06%07%08%09%0a%0B%0C%0D%0e%0f/",
+     "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0B\x0C\x0D\x0e\x0f/"},
+    {"%10%11%12%13%14%15%16%17%18%19%1a%1B%1C%1D%1e%1f/",
+     "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1B\x1C\x1D\x1e\x1f/"},
+    {"%20%21%22%23%24%25%26%27%28%29%2a%2B%2C%2D%2e%2f/",
+     " !\"#$%&'()*+,-.//"},
+    {"%30%31%32%33%34%35%36%37%38%39%3a%3B%3C%3D%3e%3f/",
+     "0123456789:;<=>?/"},
+    {"%40%41%42%43%44%45%46%47%48%49%4a%4B%4C%4D%4e%4f/",
+     "@ABCDEFGHIJKLMNO/"},
+    {"%50%51%52%53%54%55%56%57%58%59%5a%5B%5C%5D%5e%5f/",
+     "PQRSTUVWXYZ[\\]^_/"},
+    {"%60%61%62%63%64%65%66%67%68%69%6a%6B%6C%6D%6e%6f/",
+     "`abcdefghijklmno/"},
+    {"%70%71%72%73%74%75%76%77%78%79%7a%7B%7C%7D%7e%7f/",
+     "pqrstuvwxyz{|}~\x7f/"},
+    // Test un-UTF-8-ization.
+    {"%e4%bd%a0%e5%a5%bd", "\xe4\xbd\xa0\xe5\xa5\xbd"},
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(decode_cases); i++) {
+    const char* input = decode_cases[i].input;
+    url_canon::RawCanonOutputT<char16> output;
+    url_util::DecodeURLEscapeSequences(input, strlen(input), &output);
+    EXPECT_EQ(decode_cases[i].output,
+              url_test_utils::ConvertUTF16ToUTF8(
+                string16(output.data(), output.length())));
+  }
+
+  // Our decode should decode %00
+  const char zero_input[] = "%00";
+  url_canon::RawCanonOutputT<char16> zero_output;
+  url_util::DecodeURLEscapeSequences(zero_input, strlen(zero_input),
+                                     &zero_output);
+  EXPECT_NE("%00",
+            url_test_utils::ConvertUTF16ToUTF8(
+              string16(zero_output.data(), zero_output.length())));
+
+  // Test the error behavior for invalid UTF-8.
+  const char invalid_input[] = "%e4%a0%e5%a5%bd";
+  const char16 invalid_expected[4] = {0x00e4, 0x00a0, 0x597d, 0};
+  url_canon::RawCanonOutputT<char16> invalid_output;
+  url_util::DecodeURLEscapeSequences(invalid_input, strlen(invalid_input),
+                                     &invalid_output);
+  EXPECT_EQ(string16(invalid_expected),
+            string16(invalid_output.data(), invalid_output.length()));
+}
+
+TEST(URLUtilTest, TestEncodeURIComponent) {
+  struct EncodeCase {
+    const char* input;
+    const char* output;
+  } encode_cases[] = {
+    {"hello, world", "hello%2C%20world"},
+    {"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F",
+     "%01%02%03%04%05%06%07%08%09%0A%0B%0C%0D%0E%0F"},
+    {"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F",
+     "%10%11%12%13%14%15%16%17%18%19%1A%1B%1C%1D%1E%1F"},
+    {" !\"#$%&'()*+,-./",
+     "%20!%22%23%24%25%26'()*%2B%2C-.%2F"},
+    {"0123456789:;<=>?",
+     "0123456789%3A%3B%3C%3D%3E%3F"},
+    {"@ABCDEFGHIJKLMNO",
+     "%40ABCDEFGHIJKLMNO"},
+    {"PQRSTUVWXYZ[\\]^_",
+     "PQRSTUVWXYZ%5B%5C%5D%5E_"},
+    {"`abcdefghijklmno",
+     "%60abcdefghijklmno"},
+    {"pqrstuvwxyz{|}~\x7f",
+     "pqrstuvwxyz%7B%7C%7D~%7F"},
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(encode_cases); i++) {
+    const char* input = encode_cases[i].input;
+    url_canon::RawCanonOutputT<char> buffer;
+    url_util::EncodeURIComponent(input, strlen(input), &buffer);
+    std::string output(buffer.data(), buffer.length());
+    EXPECT_EQ(encode_cases[i].output, output);
+  }
+}
+
+TEST(URLUtilTest, TestResolveRelativeWithNonStandardBase) {
+  // This tests non-standard (in the sense that GURL::IsStandard() == false)
+  // hierarchical schemes.
+  struct ResolveRelativeCase {
+    const char* base;
+    const char* rel;
+    bool is_valid;
+    const char* out;
+  } resolve_non_standard_cases[] = {
+      // Resolving a relative path against a non-hierarchical URL should fail.
+    {"scheme:opaque_data", "/path", false, ""},
+      // Resolving a relative path against a non-standard authority-based base
+      // URL doesn't alter the authority section.
+    {"scheme://Authority/", "../path", true, "scheme://Authority/path"},
+      // A non-standard hierarchical base is resolved with path URL
+      // canoncialization rules.
+    {"data:/Blah:Blah/", "file.html", true, "data:/Blah:Blah/file.html"},
+    {"data:/Path/../part/part2", "file.html", true, "data:/Path/../part/file.html"},
+      // Path URL canonicalization rules also apply to non-standard authority-
+      // based URLs.
+    {"custom://Authority/", "file.html", true, "custom://Authority/file.html"},
+    {"custom://Authority/", "other://Auth/", true, "other://Auth/"},
+    {"custom://Authority/", "../../file.html", true, "custom://Authority/file.html"},
+    {"custom://Authority/path/", "file.html", true, "custom://Authority/path/file.html"},
+    {"custom://Authority:NoCanon/path/", "file.html", true, "custom://Authority:NoCanon/path/file.html"},
+      // It's still possible to get an invalid path URL.
+    {"custom://Invalid:!#Auth/", "file.html", false, ""},
+      // A path with an authority section gets canonicalized under standard URL
+      // rules, even though the base was non-standard.
+    {"content://content.Provider/", "//other.Provider", true, "content://other.provider/"},
+      // Resolving an absolute URL doesn't cause canonicalization of the
+      // result.
+    {"about:blank", "custom://Authority", true, "custom://Authority"},
+      // Resolving should fail if the base URL is authority-based but is
+      // missing a path component (the '/' at the end).
+    {"scheme://Authority", "path", false, ""},
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(resolve_non_standard_cases); i++) {
+    const ResolveRelativeCase& test_data = resolve_non_standard_cases[i];
+    url_parse::Parsed base_parsed;
+    url_parse::ParsePathURL(test_data.base, strlen(test_data.base),
+                            &base_parsed);
+
+    std::string resolved;
+    url_canon::StdStringCanonOutput output(&resolved);
+    url_parse::Parsed resolved_parsed;
+    bool valid =
+        url_util::ResolveRelative(test_data.base, strlen(test_data.base),
+                                  base_parsed,
+                                  test_data.rel, strlen(test_data.rel),
+                                  NULL, &output, &resolved_parsed);
+    output.Complete();
+
+    EXPECT_EQ(test_data.is_valid, valid) << i;
+    if (test_data.is_valid && valid)
+      EXPECT_EQ(test_data.out, resolved) << i;
+  }
+}