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// Copyright (c) 2012 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 <errno.h>
#include <sys/types.h>
#include <sys/xattr.h>
#include <algorithm>
#include <sstream>
#include <string>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/logging.h"
#include "base/strings/string_split.h"
#include "content/browser/download/file_metadata_linux.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace content {
namespace {
using std::istringstream;
using std::string;
using std::vector;
class FileMetadataLinuxTest : public testing::Test {
public:
FileMetadataLinuxTest()
: source_url_("http://www.source.com"),
referrer_url_("http://www.referrer.com"),
is_xattr_supported_(false) {}
const base::FilePath& test_file() const {
return test_file_;
}
const GURL& source_url() const {
return source_url_;
}
const GURL& referrer_url() const {
return referrer_url_;
}
bool is_xattr_supported() const {
return is_xattr_supported_;
}
protected:
virtual void SetUp() OVERRIDE {
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir_.path(), &test_file_));
int result = setxattr(test_file_.value().c_str(),
"user.test", "test", 4, 0);
is_xattr_supported_ = (!result) || (errno != ENOTSUP);
if (!is_xattr_supported_) {
VLOG(0) << "Test will be skipped because extended attributes are not "
<< "supported on this OS/file system.";
}
}
void CheckExtendedAttributeValue(const string attr_name,
const string expected_value) const {
ssize_t len = getxattr(test_file().value().c_str(), attr_name.c_str(),
NULL, 0);
if (len <= static_cast<ssize_t>(0)) {
FAIL() << "Attribute '" << attr_name << "' does not exist";
}
char* buffer = new char[len];
len = getxattr(test_file().value().c_str(), attr_name.c_str(), buffer, len);
EXPECT_EQ(expected_value.size(), static_cast<size_t>(len));
string real_value(buffer, len);
delete[] buffer;
EXPECT_EQ(expected_value, real_value);
}
void GetExtendedAttributeNames(vector<string>* attr_names) const {
ssize_t len = listxattr(test_file().value().c_str(), NULL, 0);
if (len <= static_cast<ssize_t>(0)) return;
char* buffer = new char[len];
len = listxattr(test_file().value().c_str(), buffer, len);
attr_names->clear();
base::SplitString(string(buffer, len), '\0', attr_names);
delete[] buffer;
}
void VerifyAttributesAreSetCorrectly() const {
vector<string> attr_names;
GetExtendedAttributeNames(&attr_names);
// Check if the attributes are set on the file
vector<string>::const_iterator pos = find(attr_names.begin(),
attr_names.end(), kSourceURLAttrName);
EXPECT_NE(pos, attr_names.end());
pos = find(attr_names.begin(), attr_names.end(), kReferrerURLAttrName);
EXPECT_NE(pos, attr_names.end());
// Check if the attribute values are set correctly
CheckExtendedAttributeValue(kSourceURLAttrName, source_url().spec());
CheckExtendedAttributeValue(kReferrerURLAttrName, referrer_url().spec());
}
private:
base::ScopedTempDir temp_dir_;
base::FilePath test_file_;
GURL source_url_;
GURL referrer_url_;
bool is_xattr_supported_;
};
TEST_F(FileMetadataLinuxTest, CheckMetadataSetCorrectly) {
if (!is_xattr_supported()) return;
AddOriginMetadataToFile(test_file(), source_url(), referrer_url());
VerifyAttributesAreSetCorrectly();
}
TEST_F(FileMetadataLinuxTest, SetMetadataMultipleTimes) {
if (!is_xattr_supported()) return;
GURL dummy_url("http://www.dummy.com");
AddOriginMetadataToFile(test_file(), dummy_url, dummy_url);
AddOriginMetadataToFile(test_file(), source_url(), referrer_url());
VerifyAttributesAreSetCorrectly();
}
TEST_F(FileMetadataLinuxTest, InvalidSourceURLTest) {
if (!is_xattr_supported()) return;
GURL invalid_url;
vector<string> attr_names;
AddOriginMetadataToFile(test_file(), invalid_url, referrer_url());
GetExtendedAttributeNames(&attr_names);
EXPECT_EQ(attr_names.end(), find(attr_names.begin(), attr_names.end(),
kSourceURLAttrName));
CheckExtendedAttributeValue(kReferrerURLAttrName, referrer_url().spec());
}
TEST_F(FileMetadataLinuxTest, InvalidReferrerURLTest) {
if (!is_xattr_supported()) return;
GURL invalid_url;
vector<string> attr_names;
AddOriginMetadataToFile(test_file(), source_url(), invalid_url);
GetExtendedAttributeNames(&attr_names);
EXPECT_EQ(attr_names.end(), find(attr_names.begin(), attr_names.end(),
kReferrerURLAttrName));
CheckExtendedAttributeValue(kSourceURLAttrName, source_url().spec());
}
TEST_F(FileMetadataLinuxTest, InvalidURLsTest) {
if (!is_xattr_supported()) return;
GURL invalid_url;
vector<string> attr_names;
AddOriginMetadataToFile(test_file(), invalid_url, invalid_url);
GetExtendedAttributeNames(&attr_names);
EXPECT_EQ(attr_names.end(), find(attr_names.begin(), attr_names.end(),
kSourceURLAttrName));
EXPECT_EQ(attr_names.end(), find(attr_names.begin(), attr_names.end(),
kReferrerURLAttrName));
}
} // namespace
} // namespace content
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