url/url_util_unittest.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "testing/gtest/include/gtest/gtest.h"
   6 #include "url/url_canon.h"
   7 #include "url/url_canon_stdstring.h"
   8 #include "url/url_parse.h"
   9 #include "url/url_test_utils.h"
  10 #include "url/url_util.h"
  11
  12 TEST(URLUtilTest, FindAndCompareScheme) {
  13   url_parse::Component found_scheme;
  14
  15   // Simple case where the scheme is found and matches.
  16   const char kStr1[] = "http://www.com/";
  17   EXPECT_TRUE(url_util::FindAndCompareScheme(
  18       kStr1, static_cast<int>(strlen(kStr1)), "http", NULL));
  19   EXPECT_TRUE(url_util::FindAndCompareScheme(
  20       kStr1, static_cast<int>(strlen(kStr1)), "http", &found_scheme));
  21   EXPECT_TRUE(found_scheme == url_parse::Component(0, 4));
  22
  23   // A case where the scheme is found and doesn't match.
  24   EXPECT_FALSE(url_util::FindAndCompareScheme(
  25       kStr1, static_cast<int>(strlen(kStr1)), "https", &found_scheme));
  26   EXPECT_TRUE(found_scheme == url_parse::Component(0, 4));
  27
  28   // A case where there is no scheme.
  29   const char kStr2[] = "httpfoobar";
  30   EXPECT_FALSE(url_util::FindAndCompareScheme(
  31       kStr2, static_cast<int>(strlen(kStr2)), "http", &found_scheme));
  32   EXPECT_TRUE(found_scheme == url_parse::Component());
  33
  34   // When there is an empty scheme, it should match the empty scheme.
  35   const char kStr3[] = ":foo.com/";
  36   EXPECT_TRUE(url_util::FindAndCompareScheme(
  37       kStr3, static_cast<int>(strlen(kStr3)), "", &found_scheme));
  38   EXPECT_TRUE(found_scheme == url_parse::Component(0, 0));
  39
  40   // But when there is no scheme, it should fail.
  41   EXPECT_FALSE(url_util::FindAndCompareScheme("", 0, "", &found_scheme));
  42   EXPECT_TRUE(found_scheme == url_parse::Component());
  43
  44   // When there is a whitespace char in scheme, it should canonicalize the url
  45   // before comparison.
  46   const char whtspc_str[] = " \r\n\tjav\ra\nscri\tpt:alert(1)";
  47   EXPECT_TRUE(url_util::FindAndCompareScheme(
  48       whtspc_str, static_cast<int>(strlen(whtspc_str)), "javascript",
  49       &found_scheme));
  50   EXPECT_TRUE(found_scheme == url_parse::Component(1, 10));
  51
  52   // Control characters should be stripped out on the ends, and kept in the
  53   // middle.
  54   const char ctrl_str[] = "\02jav\02scr\03ipt:alert(1)";
  55   EXPECT_FALSE(url_util::FindAndCompareScheme(
  56       ctrl_str, static_cast<int>(strlen(ctrl_str)), "javascript",
  57       &found_scheme));
  58   EXPECT_TRUE(found_scheme == url_parse::Component(1, 11));
  59 }
  60
  61 TEST(URLUtilTest, ReplaceComponents) {
  62   url_parse::Parsed parsed;
  63   url_canon::RawCanonOutputT<char> output;
  64   url_parse::Parsed new_parsed;
  65
  66   // Check that the following calls do not cause crash
  67   url_canon::Replacements<char> replacements;
  68   replacements.SetRef("test", url_parse::Component(0, 4));
  69   url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
  70                               &new_parsed);
  71   url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
  72                               &new_parsed);
  73   replacements.ClearRef();
  74   replacements.SetHost("test", url_parse::Component(0, 4));
  75   url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
  76                               &new_parsed);
  77   url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
  78                               &new_parsed);
  79
  80   replacements.ClearHost();
  81   url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
  82                               &new_parsed);
  83   url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
  84                               &new_parsed);
  85   url_util::ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output,
  86                               &new_parsed);
  87   url_util::ReplaceComponents("", 0, parsed, replacements, NULL, &output,
  88                               &new_parsed);
  89 }
  90
  91 static std::string CheckReplaceScheme(const char* base_url,
  92                                       const char* scheme) {
  93   // Make sure the input is canonicalized.
  94   url_canon::RawCanonOutput<32> original;
  95   url_parse::Parsed original_parsed;
  96   url_util::Canonicalize(base_url, strlen(base_url), true, NULL,
  97                          &original, &original_parsed);
  98
  99   url_canon::Replacements<char> replacements;
 100   replacements.SetScheme(scheme, url_parse::Component(0, strlen(scheme)));
 101
 102   std::string output_string;
 103   url_canon::StdStringCanonOutput output(&output_string);
 104   url_parse::Parsed output_parsed;
 105   url_util::ReplaceComponents(original.data(), original.length(),
 106                               original_parsed, replacements, NULL,
 107                               &output, &output_parsed);
 108
 109   output.Complete();
 110   return output_string;
 111 }
 112
 113 TEST(URLUtilTest, ReplaceScheme) {
 114   EXPECT_EQ("https://google.com/",
 115             CheckReplaceScheme("http://google.com/", "https"));
 116   EXPECT_EQ("file://google.com/",
 117             CheckReplaceScheme("http://google.com/", "file"));
 118   EXPECT_EQ("http://home/Build",
 119             CheckReplaceScheme("file:///Home/Build", "http"));
 120   EXPECT_EQ("javascript:foo",
 121             CheckReplaceScheme("about:foo", "javascript"));
 122   EXPECT_EQ("://google.com/",
 123             CheckReplaceScheme("http://google.com/", ""));
 124   EXPECT_EQ("http://google.com/",
 125             CheckReplaceScheme("about:google.com", "http"));
 126   EXPECT_EQ("http:", CheckReplaceScheme("", "http"));
 127
 128 #ifdef WIN32
 129   // Magic Windows drive letter behavior when converting to a file URL.
 130   EXPECT_EQ("file:///E:/foo/",
 131             CheckReplaceScheme("http://localhost/e:foo/", "file"));
 132 #endif
 133
 134   // This will probably change to "about://google.com/" when we fix
 135   // http://crbug.com/160 which should also be an acceptable result.
 136   EXPECT_EQ("about://google.com/",
 137             CheckReplaceScheme("http://google.com/", "about"));
 138
 139   EXPECT_EQ("http://example.com/%20hello%20# world",
 140             CheckReplaceScheme("myscheme:example.com/ hello # world ", "http"));
 141 }
 142
 143 TEST(URLUtilTest, DecodeURLEscapeSequences) {
 144   struct DecodeCase {
 145     const char* input;
 146     const char* output;
 147   } decode_cases[] = {
 148     {"hello, world", "hello, world"},
 149     {"%01%02%03%04%05%06%07%08%09%0a%0B%0C%0D%0e%0f/",
 150      "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0B\x0C\x0D\x0e\x0f/"},
 151     {"%10%11%12%13%14%15%16%17%18%19%1a%1B%1C%1D%1e%1f/",
 152      "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1B\x1C\x1D\x1e\x1f/"},
 153     {"%20%21%22%23%24%25%26%27%28%29%2a%2B%2C%2D%2e%2f/",
 154      " !\"#$%&'()*+,-.//"},
 155     {"%30%31%32%33%34%35%36%37%38%39%3a%3B%3C%3D%3e%3f/",
 156      "0123456789:;<=>?/"},
 157     {"%40%41%42%43%44%45%46%47%48%49%4a%4B%4C%4D%4e%4f/",
 158      "@ABCDEFGHIJKLMNO/"},
 159     {"%50%51%52%53%54%55%56%57%58%59%5a%5B%5C%5D%5e%5f/",
 160      "PQRSTUVWXYZ[\\]^_/"},
 161     {"%60%61%62%63%64%65%66%67%68%69%6a%6B%6C%6D%6e%6f/",
 162      "`abcdefghijklmno/"},
 163     {"%70%71%72%73%74%75%76%77%78%79%7a%7B%7C%7D%7e%7f/",
 164      "pqrstuvwxyz{|}~\x7f/"},
 165     // Test un-UTF-8-ization.
 166     {"%e4%bd%a0%e5%a5%bd", "\xe4\xbd\xa0\xe5\xa5\xbd"},
 167   };
 168
 169   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(decode_cases); i++) {
 170     const char* input = decode_cases[i].input;
 171     url_canon::RawCanonOutputT<base::char16> output;
 172     url_util::DecodeURLEscapeSequences(input, strlen(input), &output);
 173     EXPECT_EQ(decode_cases[i].output,
 174               url_test_utils::ConvertUTF16ToUTF8(
 175                 base::string16(output.data(), output.length())));
 176   }
 177
 178   // Our decode should decode %00
 179   const char zero_input[] = "%00";
 180   url_canon::RawCanonOutputT<base::char16> zero_output;
 181   url_util::DecodeURLEscapeSequences(zero_input, strlen(zero_input),
 182                                      &zero_output);
 183   EXPECT_NE("%00",
 184             url_test_utils::ConvertUTF16ToUTF8(
 185               base::string16(zero_output.data(), zero_output.length())));
 186
 187   // Test the error behavior for invalid UTF-8.
 188   const char invalid_input[] = "%e4%a0%e5%a5%bd";
 189   const base::char16 invalid_expected[4] = {0x00e4, 0x00a0, 0x597d, 0};
 190   url_canon::RawCanonOutputT<base::char16> invalid_output;
 191   url_util::DecodeURLEscapeSequences(invalid_input, strlen(invalid_input),
 192                                      &invalid_output);
 193   EXPECT_EQ(base::string16(invalid_expected),
 194             base::string16(invalid_output.data(), invalid_output.length()));
 195 }
 196
 197 TEST(URLUtilTest, TestEncodeURIComponent) {
 198   struct EncodeCase {
 199     const char* input;
 200     const char* output;
 201   } encode_cases[] = {
 202     {"hello, world", "hello%2C%20world"},
 203     {"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F",
 204      "%01%02%03%04%05%06%07%08%09%0A%0B%0C%0D%0E%0F"},
 205     {"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F",
 206      "%10%11%12%13%14%15%16%17%18%19%1A%1B%1C%1D%1E%1F"},
 207     {" !\"#$%&'()*+,-./",
 208      "%20!%22%23%24%25%26%27()*%2B%2C-.%2F"},
 209     {"0123456789:;<=>?",
 210      "0123456789%3A%3B%3C%3D%3E%3F"},
 211     {"@ABCDEFGHIJKLMNO",
 212      "%40ABCDEFGHIJKLMNO"},
 213     {"PQRSTUVWXYZ[\\]^_",
 214      "PQRSTUVWXYZ%5B%5C%5D%5E_"},
 215     {"`abcdefghijklmno",
 216      "%60abcdefghijklmno"},
 217     {"pqrstuvwxyz{|}~\x7f",
 218      "pqrstuvwxyz%7B%7C%7D~%7F"},
 219   };
 220
 221   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(encode_cases); i++) {
 222     const char* input = encode_cases[i].input;
 223     url_canon::RawCanonOutputT<char> buffer;
 224     url_util::EncodeURIComponent(input, strlen(input), &buffer);
 225     std::string output(buffer.data(), buffer.length());
 226     EXPECT_EQ(encode_cases[i].output, output);
 227   }
 228 }
 229
 230 TEST(URLUtilTest, TestResolveRelativeWithNonStandardBase) {
 231   // This tests non-standard (in the sense that GURL::IsStandard() == false)
 232   // hierarchical schemes.
 233   struct ResolveRelativeCase {
 234     const char* base;
 235     const char* rel;
 236     bool is_valid;
 237     const char* out;
 238   } resolve_non_standard_cases[] = {
 239       // Resolving a relative path against a non-hierarchical URL should fail.
 240     {"scheme:opaque_data", "/path", false, ""},
 241       // Resolving a relative path against a non-standard authority-based base
 242       // URL doesn't alter the authority section.
 243     {"scheme://Authority/", "../path", true, "scheme://Authority/path"},
 244       // A non-standard hierarchical base is resolved with path URL
 245       // canoncialization rules.
 246     {"data:/Blah:Blah/", "file.html", true, "data:/Blah:Blah/file.html"},
 247     {"data:/Path/../part/part2", "file.html", true,
 248       "data:/Path/../part/file.html"},
 249       // Path URL canonicalization rules also apply to non-standard authority-
 250       // based URLs.
 251     {"custom://Authority/", "file.html", true,
 252       "custom://Authority/file.html"},
 253     {"custom://Authority/", "other://Auth/", true, "other://Auth/"},
 254     {"custom://Authority/", "../../file.html", true,
 255       "custom://Authority/file.html"},
 256     {"custom://Authority/path/", "file.html", true,
 257       "custom://Authority/path/file.html"},
 258     {"custom://Authority:NoCanon/path/", "file.html", true,
 259       "custom://Authority:NoCanon/path/file.html"},
 260       // It's still possible to get an invalid path URL.
 261     {"custom://Invalid:!#Auth/", "file.html", false, ""},
 262       // A path with an authority section gets canonicalized under standard URL
 263       // rules, even though the base was non-standard.
 264     {"content://content.Provider/", "//other.Provider", true,
 265       "content://other.provider/"},
 266       // Resolving an absolute URL doesn't cause canonicalization of the
 267       // result.
 268     {"about:blank", "custom://Authority", true, "custom://Authority"},
 269       // Fragment URLs can be resolved against a non-standard base.
 270     {"scheme://Authority/path", "#fragment", true,
 271       "scheme://Authority/path#fragment"},
 272     {"scheme://Authority/", "#fragment", true, "scheme://Authority/#fragment"},
 273       // Resolving should fail if the base URL is authority-based but is
 274       // missing a path component (the '/' at the end).
 275     {"scheme://Authority", "path", false, ""},
 276       // Test resolving a fragment (only) against any kind of base-URL.
 277     {"about:blank", "#id42", true, "about:blank#id42" },
 278     {"about:blank", " #id42", true, "about:blank#id42" },
 279     {"about:blank#oldfrag", "#newfrag", true, "about:blank#newfrag" },
 280       // A surprising side effect of allowing fragments to resolve against
 281       // any URL scheme is we might break javascript: URLs by doing so...
 282     {"javascript:alert('foo#bar')", "#badfrag", true,
 283       "javascript:alert('foo#badfrag" },
 284   };
 285
 286   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(resolve_non_standard_cases); i++) {
 287     const ResolveRelativeCase& test_data = resolve_non_standard_cases[i];
 288     url_parse::Parsed base_parsed;
 289     url_parse::ParsePathURL(test_data.base, strlen(test_data.base), false,
 290                             &base_parsed);
 291
 292     std::string resolved;
 293     url_canon::StdStringCanonOutput output(&resolved);
 294     url_parse::Parsed resolved_parsed;
 295     bool valid =
 296         url_util::ResolveRelative(test_data.base, strlen(test_data.base),
 297                                   base_parsed,
 298                                   test_data.rel, strlen(test_data.rel),
 299                                   NULL, &output, &resolved_parsed);
 300     output.Complete();
 301
 302     EXPECT_EQ(test_data.is_valid, valid) << i;
 303     if (test_data.is_valid && valid)
 304       EXPECT_EQ(test_data.out, resolved) << i;
 305   }
 306 }