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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/data_url.h"
#include "base/memory/ref_counted.h"
#include "net/base/net_errors.h"
#include "net/http/http_response_headers.h"
#include "net/http/http_version.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace net {
namespace {
struct ParseTestData {
const char* url;
bool is_valid;
const char* mime_type;
const char* charset;
const std::string data;
};
} // namespace
TEST(DataURLTest, Parse) {
const ParseTestData tests[] = {
{"data:", false, "", "", ""},
{"data:,", true, "text/plain", "US-ASCII", ""},
{"data:;base64,", true, "text/plain", "US-ASCII", ""},
{"data:;charset=,test", false, "", "", ""},
{"data:TeXt/HtMl,<b>x</b>", true, "text/html", "", "<b>x</b>"},
{"data:,foo", true, "text/plain", "US-ASCII", "foo"},
{"data:;base64,aGVsbG8gd29ybGQ=", true, "text/plain", "US-ASCII",
"hello world"},
// Allow invalid mediatype for backward compatibility but set mime_type to
// "text/plain" instead of the invalid mediatype.
{"data:foo,boo", true, "text/plain", "US-ASCII", "boo"},
// When accepting an invalid mediatype, override charset with "US-ASCII"
{"data:foo;charset=UTF-8,boo", true, "text/plain", "US-ASCII", "boo"},
// Invalid mediatype. Includes a slash but the type part is not a token.
{"data:f(oo/bar;baz=1;charset=kk,boo", true, "text/plain", "US-ASCII",
"boo"},
{"data:foo/bar;baz=1;charset=kk,boo", true, "foo/bar", "kk", "boo"},
{"data:foo/bar;charset=kk;baz=1,boo", true, "foo/bar", "kk", "boo"},
{"data:text/html,%3Chtml%3E%3Cbody%3E%3Cb%3Ehello%20world"
"%3C%2Fb%3E%3C%2Fbody%3E%3C%2Fhtml%3E",
true, "text/html", "", "<html><body><b>hello world</b></body></html>"},
{"data:text/html,<html><body><b>hello world</b></body></html>", true,
"text/html", "", "<html><body><b>hello world</b></body></html>"},
// the comma cannot be url-escaped!
{"data:%2Cblah", false, "", "", ""},
// invalid base64 content
{"data:;base64,aGVs_-_-", false, "", "", ""},
// Spaces should be removed from non-text data URLs (we already tested
// spaces above).
{"data:image/fractal,a b c d e f g", true, "image/fractal", "",
"abcdefg"},
// Spaces should also be removed from anything base-64 encoded
{"data:;base64,aGVs bG8gd2 9ybGQ=", true, "text/plain", "US-ASCII",
"hello world"},
// Other whitespace should also be removed from anything base-64 encoded.
{"data:;base64,aGVs bG8gd2 \n9ybGQ=", true, "text/plain", "US-ASCII",
"hello world"},
// In base64 encoding, escaped whitespace should be stripped.
// (This test was taken from acid3)
// http://b/1054495
{"data:text/javascript;base64,%20ZD%20Qg%0D%0APS%20An%20Zm91cic%0D%0A%207"
"%20",
true, "text/javascript", "", "d4 = 'four';"},
// Only unescaped whitespace should be stripped in non-base64.
// http://b/1157796
{"data:img/png,A B %20 %0A C", true, "img/png", "", "AB \nC"},
{"data:text/plain;charset=utf-8;base64,SGVsbMO2", true, "text/plain",
"utf-8", "Hell\xC3\xB6"},
// no mimetype
{"data:;charset=utf-8;base64,SGVsbMO2", true, "text/plain", "utf-8",
"Hell\xC3\xB6"},
// Not sufficiently padded.
{"data:;base64,aGVsbG8gd29ybGQ", true, "text/plain", "US-ASCII",
"hello world"},
// Not sufficiently padded with whitespace.
{"data:;base64,aGV sbG8g d29ybGQ", true, "text/plain", "US-ASCII",
"hello world"},
// Not sufficiently padded with escaped whitespace.
{"data:;base64,aGV%20sbG8g%20d29ybGQ", true, "text/plain", "US-ASCII",
"hello world"},
// Bad encoding (truncated).
{"data:;base64,aGVsbG8gd29yb", false, "", "", ""},
// BiDi control characters should be unescaped and preserved as is, and
// should not be replaced with % versions. In the below case, \xE2\x80\x8F
// is the RTL mark and the parsed text should preserve it as is.
{"data:text/plain;charset=utf-8,\xE2\x80\x8Ftest", true, "text/plain",
"utf-8", "\xE2\x80\x8Ftest"},
// Same as above but with Arabic text after RTL mark.
{"data:text/plain;charset=utf-8,"
"\xE2\x80\x8F\xD8\xA7\xD8\xAE\xD8\xAA\xD8\xA8\xD8\xA7\xD8\xB1",
true, "text/plain", "utf-8",
"\xE2\x80\x8F\xD8\xA7\xD8\xAE\xD8\xAA\xD8\xA8\xD8\xA7\xD8\xB1"},
// RTL mark encoded as %E2%80%8F should be unescaped too. Note that when
// wrapped in a GURL, this URL and the next effectively become the same as
// the previous two URLs.
{"data:text/plain;charset=utf-8,%E2%80%8Ftest", true, "text/plain",
"utf-8", "\xE2\x80\x8Ftest"},
// Same as above but with Arabic text after RTL mark.
{"data:text/plain;charset=utf-8,"
"%E2%80%8F\xD8\xA7\xD8\xAE\xD8\xAA\xD8\xA8\xD8\xA7\xD8\xB1",
true, "text/plain", "utf-8",
"\xE2\x80\x8F\xD8\xA7\xD8\xAE\xD8\xAA\xD8\xA8\xD8\xA7\xD8\xB1"},
// The 'data' of a data URI does not include any ref it has.
{"data:text/plain,this/is/a/test/%23include/#dontinclude", true,
"text/plain", "", "this/is/a/test/#include/"},
// More unescaping tests and tests with nulls.
{"data:%00text/plain%41,foo", true, "%00text/plain%41", "", "foo"},
{"data:text/plain;charset=%00US-ASCII%41,foo", true, "text/plain",
"%00US-ASCII%41", "foo"},
{"data:text/plain,%00_%41", true, "text/plain", "",
std::string("\x00_A", 3)},
{"data:text/plain;base64,AA//", true, "text/plain", "",
std::string("\x00\x0F\xFF", 3)},
// "%62ase64" unescapes to base64, but should not be treated as such.
{"data:text/plain;%62ase64,AA//", true, "text/plain", "", "AA//"},
};
for (const auto& test : tests) {
SCOPED_TRACE(test.url);
std::string mime_type;
std::string charset;
std::string data;
bool ok = DataURL::Parse(GURL(test.url), &mime_type, &charset, &data);
EXPECT_EQ(ok, test.is_valid);
EXPECT_EQ(test.mime_type, mime_type);
EXPECT_EQ(test.charset, charset);
EXPECT_EQ(test.data, data);
}
}
TEST(DataURLTest, BuildResponseSimple) {
std::string mime_type;
std::string charset;
std::string data;
scoped_refptr<HttpResponseHeaders> headers;
ASSERT_EQ(OK, DataURL::BuildResponse(GURL("data:,Hello"), "GET", &mime_type,
&charset, &data, &headers));
EXPECT_EQ("text/plain", mime_type);
EXPECT_EQ("US-ASCII", charset);
EXPECT_EQ("Hello", data);
ASSERT_TRUE(headers);
const HttpVersion& version = headers->GetHttpVersion();
EXPECT_EQ(1, version.major_value());
EXPECT_EQ(1, version.minor_value());
EXPECT_EQ("OK", headers->GetStatusText());
std::string value;
EXPECT_TRUE(headers->GetNormalizedHeader("Content-Type", &value));
EXPECT_EQ(value, "text/plain;charset=US-ASCII");
value.clear();
}
TEST(DataURLTest, BuildResponseHead) {
for (const char* method : {"HEAD", "head", "hEaD"}) {
SCOPED_TRACE(method);
std::string mime_type;
std::string charset;
std::string data;
scoped_refptr<HttpResponseHeaders> headers;
ASSERT_EQ(OK,
DataURL::BuildResponse(GURL("data:,Hello"), method, &mime_type,
&charset, &data, &headers));
EXPECT_EQ("text/plain", mime_type);
EXPECT_EQ("US-ASCII", charset);
EXPECT_EQ("", data);
ASSERT_TRUE(headers);
HttpVersion version = headers->GetHttpVersion();
EXPECT_EQ(1, version.major_value());
EXPECT_EQ(1, version.minor_value());
EXPECT_EQ("OK", headers->GetStatusText());
std::string content_type;
EXPECT_TRUE(headers->GetNormalizedHeader("Content-Type", &content_type));
EXPECT_EQ(content_type, "text/plain;charset=US-ASCII");
}
}
TEST(DataURLTest, BuildResponseInput) {
std::string mime_type;
std::string charset;
std::string data;
scoped_refptr<HttpResponseHeaders> headers;
ASSERT_EQ(ERR_INVALID_URL,
DataURL::BuildResponse(GURL("bogus"), "GET", &mime_type, &charset,
&data, &headers));
EXPECT_FALSE(headers);
EXPECT_TRUE(mime_type.empty());
EXPECT_TRUE(charset.empty());
EXPECT_TRUE(data.empty());
}
TEST(DataURLTest, BuildResponseInvalidMimeType) {
std::string mime_type;
std::string charset;
std::string data;
scoped_refptr<HttpResponseHeaders> headers;
// MIME type contains delimiters. Must be accepted but Content-Type header
// should be generated as if the mediatype was text/plain.
ASSERT_EQ(OK, DataURL::BuildResponse(GURL("data:f(o/b)r,test"), "GET",
&mime_type, &charset, &data, &headers));
ASSERT_TRUE(headers);
std::string value;
EXPECT_TRUE(headers->GetNormalizedHeader("Content-Type", &value));
EXPECT_EQ(value, "text/plain;charset=US-ASCII");
}
TEST(DataURLTest, InvalidCharset) {
std::string mime_type;
std::string charset;
std::string data;
scoped_refptr<HttpResponseHeaders> headers;
// MIME type contains delimiters. Must be rejected.
ASSERT_EQ(ERR_INVALID_URL, DataURL::BuildResponse(
GURL("data:text/html;charset=(),test"), "GET",
&mime_type, &charset, &data, &headers));
EXPECT_FALSE(headers);
EXPECT_TRUE(mime_type.empty());
EXPECT_TRUE(charset.empty());
EXPECT_TRUE(data.empty());
}
// Test a slightly larger data URL.
TEST(DataURLTest, Image) {
// Use our nice little Chrome logo.
GURL image_url(
"data:image/png;base64,"
"iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAADVklEQVQ4jX2TfUwUB"
"BjG3w1y+HGcd9dxhXR8T4awOccJGgOSWclHImznLkTlSw0DDQXkrmgYgbUYnlQTqQ"
"xIEVxitD5UMCATRA1CEEg+Qjw3bWDxIauJv/5oumqs39/P827vnucRmYN0gyF01GI"
"5MpCVdW0gO7tvNC+vqSEtbZefk5NuLv1jdJ46p/zw0HeH4+PHr3h7c1mjoV2t5rKz"
"Mx1+fg9bAgK6zHq9cU5z+LpA3xOtx34+vTeT21onRuzssC3zxbbSwC13d/pFuC7Ck"
"IMDxQpF7r/MWq12UctI1dWWm99ypqSYmRUBdKem8MkrO/kgaTt1O7YzlpzE5GIVd0"
"WYUqt57yWf2McHTObYPbVD+ZwbtlLTVMZ3BW+TnLyXLaWtmEq6WJVbT3HBh3Svj2H"
"QQcm43XwmtoYM6vVKleh0uoWvnzW3v3MpidruPTQPf0bia7sJOtBM0ufTWNvus/nk"
"DFHF9ZS+uYVjRUasMeHUmyLYtcklTvzWGFZnNOXczThvpKIzjcahSqIzkvDLayDq6"
"D3eOjtBbNUEIZYyqsvj4V4wY92eNJ4IoyhTbxXX1T5xsV9tm9r4TQwHLiZw/pdDZJ"
"ea8TKmsmR/K0uLh/GwnCHghTja6lPhphezPfO5/5MrVvMzNaI3+ERHfrFzPKQukrQ"
"GI4d/3EFD/3E2mVNYvi4at7CXWREaxZGD+3hg28zD3gVMd6q5c8GdosynKmSeRuGz"
"pjyl1/9UDGtPR5HeaKT8Wjo17WXk579BXVUhN64ehF9fhRtq/uxxZKzNiZFGD0wRC"
"3NFROZ5mwIPL/96K/rKMMLrIzF9uhHr+/sYH7DAbwlgC4J+R2Z7FUx1qLnV7MGF40"
"smVSoJ/jvHRfYhQeUJd/SnYtGWhPHR0Sz+GE2F2yth0B36Vcz2KpnufBJbsysjjW4"
"kblBUiIjiURUWqJY65zxbnTy57GQyH58zgy0QBtTQv5gH15XMdKkYu+TGaJMnlm2O"
"34uI4b9tflqp1+QEFGzoW/ulmcofcpkZCYJhDfSpme7QcrHa+Xfji8paEQkTkSfmm"
"oRWRNZr/F1KfVMjW+IKEnv2FwZfKdzt0BQR6lClcZR0EfEXEfv/G6W9iLiIyCoReV"
"5EnhORIBHx+ufPj/gLB/zGI/G4Bk0AAAAASUVORK5CYII=");
std::string mime_type;
std::string charset;
std::string data;
scoped_refptr<HttpResponseHeaders> headers;
EXPECT_EQ(OK, DataURL::BuildResponse(image_url, "GET", &mime_type, &charset,
&data, &headers));
EXPECT_EQ(911u, data.size());
EXPECT_EQ("image/png", mime_type);
EXPECT_TRUE(charset.empty());
ASSERT_TRUE(headers);
std::string value;
EXPECT_EQ(headers->GetStatusLine(), "HTTP/1.1 200 OK");
EXPECT_TRUE(headers->GetNormalizedHeader("Content-Type", &value));
EXPECT_EQ(value, "image/png");
}
} // namespace net
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