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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 "components/nacl/browser/nacl_file_host.h"
#include "base/files/file_path.h"
#include "base/files/scoped_temp_dir.h"
#include "base/memory/ptr_util.h"
#include "base/memory/raw_ptr.h"
#include "base/test/scoped_path_override.h"
#include "build/build_config.h"
#include "components/nacl/browser/nacl_browser.h"
#include "components/nacl/browser/nacl_browser_delegate.h"
#include "components/nacl/browser/test_nacl_browser_delegate.h"
#include "testing/gtest/include/gtest/gtest.h"
using nacl_file_host::PnaclCanOpenFile;
class FileHostTestNaClBrowserDelegate : public TestNaClBrowserDelegate {
public:
FileHostTestNaClBrowserDelegate() = default;
bool GetPnaclDirectory(base::FilePath* pnacl_dir) override {
*pnacl_dir = pnacl_path_;
return true;
}
void SetPnaclDirectory(const base::FilePath& pnacl_dir) {
pnacl_path_ = pnacl_dir;
}
private:
base::FilePath pnacl_path_;
};
class NaClFileHostTest : public testing::Test {
public:
NaClFileHostTest(const NaClFileHostTest&) = delete;
NaClFileHostTest& operator=(const NaClFileHostTest&) = delete;
protected:
NaClFileHostTest();
~NaClFileHostTest() override;
void SetUp() override {
nacl_browser_delegate_ = new FileHostTestNaClBrowserDelegate;
nacl::NaClBrowser::SetDelegate(
base::WrapUnique(nacl_browser_delegate_.get()));
}
void TearDown() override {
nacl_browser_delegate_ = nullptr;
nacl::NaClBrowser::ClearAndDeleteDelegate();
}
FileHostTestNaClBrowserDelegate* nacl_browser_delegate() {
return nacl_browser_delegate_;
}
private:
raw_ptr<FileHostTestNaClBrowserDelegate> nacl_browser_delegate_;
};
NaClFileHostTest::NaClFileHostTest() : nacl_browser_delegate_(nullptr) {}
NaClFileHostTest::~NaClFileHostTest() {
}
// Try to pass a few funny filenames with a dummy PNaCl directory set.
TEST_F(NaClFileHostTest, TestFilenamesWithPnaclPath) {
base::ScopedTempDir scoped_tmp_dir;
ASSERT_TRUE(scoped_tmp_dir.CreateUniqueTempDir());
base::FilePath kTestPnaclPath = scoped_tmp_dir.GetPath();
nacl_browser_delegate()->SetPnaclDirectory(kTestPnaclPath);
ASSERT_TRUE(nacl::NaClBrowser::GetDelegate()->GetPnaclDirectory(
&kTestPnaclPath));
// Check allowed strings, and check that the expected prefix is added.
base::FilePath out_path;
EXPECT_TRUE(PnaclCanOpenFile("pnacl_json", &out_path));
base::FilePath expected_path = kTestPnaclPath.Append(
FILE_PATH_LITERAL("pnacl_public_pnacl_json"));
EXPECT_EQ(expected_path, out_path);
EXPECT_TRUE(PnaclCanOpenFile("x86_32_llc", &out_path));
expected_path = kTestPnaclPath.Append(
FILE_PATH_LITERAL("pnacl_public_x86_32_llc"));
EXPECT_EQ(expected_path, out_path);
// Check character ranges.
EXPECT_FALSE(PnaclCanOpenFile(".xchars", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("/xchars", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("x/chars", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("\\xchars", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("x\\chars", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("$xchars", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("%xchars", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("CAPS", &out_path));
const char non_ascii[] = "\xff\xfe";
EXPECT_FALSE(PnaclCanOpenFile(non_ascii, &out_path));
// Check file length restriction.
EXPECT_FALSE(PnaclCanOpenFile("thisstringisactuallywaaaaaaaaaaaaaaaaaaaaaaaa"
"toolongwaytoolongwaaaaayyyyytoooooooooooooooo"
"looooooooong",
&out_path));
// Other bad files.
EXPECT_FALSE(PnaclCanOpenFile(std::string(), &out_path));
EXPECT_FALSE(PnaclCanOpenFile(".", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("..", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("../llc", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("/bin/sh", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("$HOME", &out_path));
EXPECT_FALSE(PnaclCanOpenFile("$HOME/.bashrc", &out_path));
}
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