Merge branch 'develop' of github.com:cryfs/cryfs into develop
This commit is contained in:
commit
652cf90255
@ -28,7 +28,7 @@ using namespace cpputils::logging;
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namespace cryfs {
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CryConfigLoader::CryConfigLoader(shared_ptr<Console> console, RandomGenerator &keyGenerator, const SCryptSettings &scryptSettings, function<string()> askPasswordForExistingFilesystem, function<string()> askPasswordForNewFilesystem, const optional<string> &cipherFromCommandLine, const boost::optional<uint32_t> &blocksizeBytesFromCommandLine, bool noninteractive)
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: _creator(std::move(console), keyGenerator, noninteractive), _scryptSettings(scryptSettings),
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: _console(console), _creator(console, keyGenerator, noninteractive), _scryptSettings(scryptSettings),
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_askPasswordForExistingFilesystem(askPasswordForExistingFilesystem), _askPasswordForNewFilesystem(askPasswordForNewFilesystem),
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_cipherFromCommandLine(cipherFromCommandLine), _blocksizeBytesFromCommandLine(blocksizeBytesFromCommandLine) {
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}
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@ -57,12 +57,13 @@ optional<CryConfigFile> CryConfigLoader::_loadConfig(const bf::path &filename) {
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}
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void CryConfigLoader::_checkVersion(const CryConfig &config) {
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const string allowedVersionPrefix = string() + gitversion::MajorVersion() + "." + gitversion::MinorVersion() + ".";
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if (!boost::starts_with(config.Version(), allowedVersionPrefix)) {
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throw std::runtime_error(string() + "This filesystem was created with CryFS " + config.Version() + " and is incompatible. Please create a new one with your version of CryFS and migrate your data.");
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}
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if (gitversion::VersionCompare::isOlderThan(gitversion::VersionString(), config.Version())) {
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throw std::runtime_error(string() + "This filesystem was used with CryFS " + config.Version() + " and should not be opened with older versions anymore. Please update your CryFS version.");
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throw std::runtime_error(string() + "This filesystem is for CryFS " + config.Version() + " and should not be opened with older versions. Please update your CryFS version.");
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}
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if (gitversion::VersionCompare::isOlderThan(config.Version(), gitversion::VersionString())) {
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if (!_console->askYesNo("This filesystem is for CryFS " + config.Version() + ". It can be migrated to CryFS " + gitversion::VersionString() + ", but afterwards couldn't be opened anymore with older versions. Do you want to migrate it?")) {
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throw std::runtime_error(string() + "Not migrating file system.");
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}
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}
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}
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@ -21,9 +21,10 @@ public:
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private:
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boost::optional<CryConfigFile> _loadConfig(const boost::filesystem::path &filename);
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CryConfigFile _createConfig(const boost::filesystem::path &filename);
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static void _checkVersion(const CryConfig &config);
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void _checkVersion(const CryConfig &config);
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void _checkCipher(const CryConfig &config) const;
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std::shared_ptr<cpputils::Console> _console;
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CryConfigCreator _creator;
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cpputils::SCryptSettings _scryptSettings;
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std::function<std::string()> _askPasswordForExistingFilesystem;
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@ -5,6 +5,7 @@
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#include <cpp-utils/random/Random.h>
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#include <cpp-utils/crypto/symmetric/ciphers.h>
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#include <gitversion/gitversion.h>
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#include <gitversion/VersionCompare.h>
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using cpputils::unique_ref;
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using cpputils::make_unique_ref;
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@ -16,6 +17,7 @@ using std::string;
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using std::ostream;
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using ::testing::Return;
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using ::testing::_;
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using ::testing::HasSubstr;
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using namespace cryfs;
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@ -29,11 +31,13 @@ namespace boost {
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class CryConfigLoaderTest: public ::testing::Test, public TestWithMockConsole {
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public:
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CryConfigLoaderTest(): file(false) {}
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CryConfigLoaderTest(): file(false) {
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console = mockConsole();
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}
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CryConfigLoader loader(const string &password, bool noninteractive, const optional<string> &cipher = none) {
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auto askPassword = [password] { return password;};
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return CryConfigLoader(mockConsole(), cpputils::Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, cipher, none, noninteractive);
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return CryConfigLoader(console, cpputils::Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, cipher, none, noninteractive);
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}
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CryConfigFile Create(const string &password = "mypassword", const optional<string> &cipher = none, bool noninteractive = false) {
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@ -71,6 +75,24 @@ public:
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cfg.save();
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}
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string olderVersion() {
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string olderVersion;
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if (std::stol(gitversion::MinorVersion()) > 0) {
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olderVersion = gitversion::MajorVersion() + "." + std::to_string(std::stol(gitversion::MinorVersion()) - 1);
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} else {
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olderVersion = std::to_string(std::stol(gitversion::MajorVersion()) - 1) + "." + gitversion::MinorVersion();
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}
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assert(gitversion::VersionCompare::isOlderThan(olderVersion, gitversion::VersionString()));
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return olderVersion;
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}
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string newerVersion() {
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string newerVersion = gitversion::MajorVersion()+"."+std::to_string(std::stol(gitversion::MinorVersion())+1);
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assert(gitversion::VersionCompare::isOlderThan(gitversion::VersionString(), newerVersion));
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return newerVersion;
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}
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std::shared_ptr<MockConsole> console;
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TempFile file;
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};
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@ -176,3 +198,42 @@ TEST_F(CryConfigLoaderTest, Version_Create) {
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EXPECT_EQ(gitversion::VersionString(), created.config()->Version());
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EXPECT_EQ(gitversion::VersionString(), created.config()->CreatedWithVersion());
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}
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TEST_F(CryConfigLoaderTest, RefusesToLoadNewerFilesystem) {
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string version = newerVersion();
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CreateWithVersion(version);
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try {
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Load();
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EXPECT_TRUE(false); // expect throw
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} catch (const std::runtime_error &e) {
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EXPECT_THAT(e.what(), HasSubstr("Please update your CryFS version"));
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}
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}
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TEST_F(CryConfigLoaderTest, AsksWhenMigratingOlderFilesystem) {
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EXPECT_CALL(*console, askYesNo(HasSubstr("Do you want to migrate it?"))).Times(1).WillOnce(Return(true));
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string version = olderVersion();
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CreateWithVersion(version);
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EXPECT_NE(boost::none, Load());
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}
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TEST_F(CryConfigLoaderTest, DoesNotAskForMigrationWhenCorrectVersion) {
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EXPECT_CALL(*console, askYesNo(HasSubstr("Do you want to migrate it?"))).Times(0);
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CreateWithVersion(gitversion::VersionString());
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EXPECT_NE(boost::none, Load());
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}
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TEST_F(CryConfigLoaderTest, DontMigrateWhenAnsweredNo) {
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EXPECT_CALL(*console, askYesNo(HasSubstr("Do you want to migrate it?"))).Times(1).WillOnce(Return(false));
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string version = olderVersion();
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CreateWithVersion(version);
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try {
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Load();
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EXPECT_TRUE(false); // expect throw
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} catch (const std::runtime_error &e) {
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EXPECT_THAT(e.what(), HasSubstr("Not migrating file system"));
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}
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}
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