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#include "platform/local_country_file_utils.hpp"
#include "platform/country_file.hpp"
#include "platform/mwm_version.hpp"
#include "platform/platform.hpp"
#include "platform/settings.hpp"
#include "coding/file_name_utils.hpp"
#include "coding/internal/file_data.hpp"
#include "coding/reader.hpp"
#include "base/assert.hpp"
#include "base/string_utils.hpp"
#include "base/logging.hpp"
#include "std/algorithm.hpp"
#include "std/cctype.hpp"
#include "std/regex.hpp"
#include "std/sstream.hpp"
#include "std/unique_ptr.hpp"
#include "std/unordered_set.hpp"
#include "defines.hpp"
namespace platform
{
namespace migrate
{
// Set of functions to support migration between different versions of MWM
// with totaly incompatible formats.
// 160107 - Migrate to small single file MWM
uint32_t constexpr kMinRequiredVersion = 160107;
bool NeedMigrate()
{
uint32_t version;
if (!settings::Get("LastMigration", version))
return true;
if (version >= kMinRequiredVersion)
return false;
return true;
}
void SetMigrationFlag()
{
settings::Set("LastMigration", kMinRequiredVersion);
}
} // namespace migrate
namespace
{
char const kBitsExt[] = ".bftsegbits";
char const kNodesExt[] = ".bftsegnodes";
char const kOffsetsExt[] = ".offsets";
size_t const kMaxTimestampLength = 18;
bool GetFileTypeChecked(string const & path, Platform::EFileType & type)
{
Platform::EError const ret = Platform::GetFileType(path, type);
if (ret != Platform::ERR_OK)
{
LOG(LERROR, ("Can't determine file type for", path, ":", ret));
return false;
}
return true;
}
bool MkDirChecked(string const & directory)
{
Platform & platform = GetPlatform();
Platform::EError const ret = platform.MkDir(directory);
switch (ret)
{
case Platform::ERR_OK:
return true;
case Platform::ERR_FILE_ALREADY_EXISTS:
{
Platform::EFileType type;
if (!GetFileTypeChecked(directory, type))
return false;
if (type != Platform::FILE_TYPE_DIRECTORY)
{
LOG(LERROR, (directory, "exists, but not a directory:", type));
return false;
}
return true;
}
default:
LOG(LERROR, (directory, "can't be created:", ret));
return false;
}
}
string GetSpecialFilesSearchScope()
{
#if defined(OMIM_OS_ANDROID)
return "er";
#else
return "r";
#endif // defined(OMIM_OS_ANDROID)
}
bool IsSpecialName(string const & name) { return name == "." || name == ".."; }
bool IsDownloaderFile(string const & name)
{
static regex const filter(".*\\.(downloading|resume|ready)[0-9]?$");
return regex_match(name.begin(), name.end(), filter);
}
bool DirectoryHasIndexesOnly(string const & directory)
{
Platform::TFilesWithType fwts;
Platform::GetFilesByType(directory, Platform::FILE_TYPE_REGULAR | Platform::FILE_TYPE_DIRECTORY,
fwts);
for (auto const & fwt : fwts)
{
auto const & name = fwt.first;
auto const & type = fwt.second;
if (type == Platform::FILE_TYPE_DIRECTORY)
{
if (!IsSpecialName(name))
return false;
continue;
}
if (!CountryIndexes::IsIndexFile(name))
return false;
}
return true;
}
inline string GetDataDirFullPath(string const & dataDir)
{
Platform & platform = GetPlatform();
return dataDir.empty() ? platform.WritableDir()
: my::JoinFoldersToPath(platform.WritableDir(), dataDir);
}
} // namespace
void DeleteDownloaderFilesForCountry(int64_t version, CountryFile const & countryFile)
{
DeleteDownloaderFilesForCountry(version, string(), countryFile);
}
void DeleteDownloaderFilesForCountry(int64_t version, string const & dataDir,
CountryFile const & countryFile)
{
for (MapOptions file : {MapOptions::Map, MapOptions::CarRouting})
{
string const path = GetFileDownloadPath(version, dataDir, countryFile, file);
ASSERT(strings::EndsWith(path, READY_FILE_EXTENSION), ());
my::DeleteFileX(path);
my::DeleteFileX(path + RESUME_FILE_EXTENSION);
my::DeleteFileX(path + DOWNLOADING_FILE_EXTENSION);
}
}
void FindAllLocalMapsInDirectoryAndCleanup(string const & directory, int64_t version,
int64_t latestVersion,
vector<LocalCountryFile> & localFiles)
{
vector<string> files;
Platform & platform = GetPlatform();
Platform::TFilesWithType fwts;
platform.GetFilesByType(directory, Platform::FILE_TYPE_REGULAR | Platform::FILE_TYPE_DIRECTORY,
fwts);
unordered_set<string> names;
for (auto const & fwt : fwts)
{
if (fwt.second != Platform::FILE_TYPE_REGULAR)
continue;
string name = fwt.first;
// Remove downloader files for old version directories.
if (IsDownloaderFile(name) && version < latestVersion)
{
my::DeleteFileX(my::JoinFoldersToPath(directory, name));
continue;
}
if (!strings::EndsWith(name, DATA_FILE_EXTENSION))
continue;
// Remove DATA_FILE_EXTENSION and use base name as a country file name.
my::GetNameWithoutExt(name);
names.insert(name);
LocalCountryFile localFile(directory, CountryFile(name), version);
// Delete Brazil.mwm and Japan.mwm maps, because they were
// replaced with smaller regions after osrm routing
// implementation.
if (name == "Japan" || name == "Brazil")
{
localFile.SyncWithDisk();
localFile.DeleteFromDisk(MapOptions::MapWithCarRouting);
continue;
}
localFiles.push_back(localFile);
}
for (auto const & fwt : fwts)
{
if (fwt.second != Platform::FILE_TYPE_DIRECTORY)
continue;
string name = fwt.first;
if (IsSpecialName(name))
continue;
if (names.count(name) == 0 && DirectoryHasIndexesOnly(my::JoinFoldersToPath(directory, name)))
{
// Directory which looks like a directory with indexes for absent country. It's OK to remove
// it.
LocalCountryFile absentCountry(directory, CountryFile(name), version);
CountryIndexes::DeleteFromDisk(absentCountry);
}
}
}
void FindAllLocalMapsAndCleanup(int64_t latestVersion, vector<LocalCountryFile> & localFiles)
{
FindAllLocalMapsAndCleanup(latestVersion, string(), localFiles);
}
void FindAllLocalMapsAndCleanup(int64_t latestVersion, string const & dataDir,
vector<LocalCountryFile> & localFiles)
{
string const dir = GetDataDirFullPath(dataDir);
FindAllLocalMapsInDirectoryAndCleanup(dir, 0 /* version */, latestVersion, localFiles);
Platform::TFilesWithType fwts;
Platform::GetFilesByType(dir, Platform::FILE_TYPE_DIRECTORY, fwts);
for (auto const & fwt : fwts)
{
string const & subdir = fwt.first;
int64_t version;
if (!ParseVersion(subdir, version) || version > latestVersion)
continue;
string const fullPath = my::JoinFoldersToPath(dir, subdir);
FindAllLocalMapsInDirectoryAndCleanup(fullPath, version, latestVersion, localFiles);
Platform::EError err = Platform::RmDir(fullPath);
if (err != Platform::ERR_OK && err != Platform::ERR_DIRECTORY_NOT_EMPTY)
LOG(LWARNING, ("Can't remove directory:", fullPath, err));
}
// World and WorldCoasts can be stored in app bundle or in resources
// directory, thus it's better to get them via Platform.
for (string const & file : { WORLD_FILE_NAME,
(migrate::NeedMigrate() ? WORLD_COASTS_OBSOLETE_FILE_NAME : WORLD_COASTS_FILE_NAME) })
{
auto i = localFiles.begin();
for (; i != localFiles.end(); ++i)
{
if (i->GetCountryFile().GetName() == file)
break;
}
try
{
Platform & platform = GetPlatform();
ModelReaderPtr reader(
platform.GetReader(file + DATA_FILE_EXTENSION, GetSpecialFilesSearchScope()));
// Assume that empty path means the resource file.
LocalCountryFile worldFile{string(), CountryFile(file),
version::ReadVersionDate(reader)};
worldFile.m_files = MapOptions::Map;
if (i != localFiles.end())
{
// Always use resource World files instead of local on disk.
*i = worldFile;
}
else
localFiles.push_back(worldFile);
}
catch (RootException const & ex)
{
if (i == localFiles.end())
{
// This warning is possible on android devices without pre-downloaded Worlds/fonts files.
LOG(LWARNING, ("Can't find any:", file, "Reason:", ex.Msg()));
}
}
}
}
void CleanupMapsDirectory(int64_t latestVersion)
{
vector<LocalCountryFile> localFiles;
FindAllLocalMapsAndCleanup(latestVersion, localFiles);
}
bool ParseVersion(string const & s, int64_t & version)
{
if (s.empty() || s.size() > kMaxTimestampLength)
return false;
int64_t v = 0;
for (char const c : s)
{
if (!isdigit(c))
return false;
v = v * 10 + c - '0';
}
version = v;
return true;
}
shared_ptr<LocalCountryFile> PreparePlaceForCountryFiles(int64_t version, CountryFile const & countryFile)
{
return PreparePlaceForCountryFiles(version, string(), countryFile);
}
shared_ptr<LocalCountryFile> PreparePlaceForCountryFiles(int64_t version, string const & dataDir,
CountryFile const & countryFile)
{
string const dir = GetDataDirFullPath(dataDir);
if (version == 0)
return make_shared<LocalCountryFile>(dir, countryFile, version);
string const directory = my::JoinFoldersToPath(dir, strings::to_string(version));
if (!MkDirChecked(directory))
return shared_ptr<LocalCountryFile>();
return make_shared<LocalCountryFile>(directory, countryFile, version);
}
string GetFileDownloadPath(int64_t version, CountryFile const & countryFile, MapOptions file)
{
return GetFileDownloadPath(version, string(), countryFile, file);
}
string GetFileDownloadPath(int64_t version, string const & dataDir,
CountryFile const & countryFile, MapOptions file)
{
string const readyFile = GetFileName(countryFile.GetName(), file, version) + READY_FILE_EXTENSION;
string const dir = GetDataDirFullPath(dataDir);
if (version == 0)
return my::JoinFoldersToPath(dir, readyFile);
return my::JoinFoldersToPath({dir, strings::to_string(version)}, readyFile);
}
unique_ptr<ModelReader> GetCountryReader(platform::LocalCountryFile const & file, MapOptions options)
{
Platform & platform = GetPlatform();
// See LocalCountryFile comment for explanation.
if (file.GetDirectory().empty())
{
return platform.GetReader(file.GetCountryName() + DATA_FILE_EXTENSION,
GetSpecialFilesSearchScope());
}
return platform.GetReader(file.GetPath(options), "f");
}
// static
void CountryIndexes::PreparePlaceOnDisk(LocalCountryFile const & localFile)
{
string const dir = IndexesDir(localFile);
if (!MkDirChecked(dir))
MYTHROW(FileSystemException, ("Can't create directory", dir));
}
// static
bool CountryIndexes::DeleteFromDisk(LocalCountryFile const & localFile)
{
string const directory = IndexesDir(localFile);
bool ok = true;
for (auto index : {Index::Bits, Index::Nodes, Index::Offsets})
{
string const path = GetPath(localFile, index);
if (Platform::IsFileExistsByFullPath(path) && !my::DeleteFileX(path))
{
LOG(LWARNING, ("Can't remove country index:", path));
ok = false;
}
}
Platform::EError const ret = Platform::RmDir(directory);
if (ret != Platform::ERR_OK && ret != Platform::ERR_FILE_DOES_NOT_EXIST)
{
LOG(LWARNING, ("Can't remove indexes directory:", directory, ret));
ok = false;
}
return ok;
}
// static
string CountryIndexes::GetPath(LocalCountryFile const & localFile, Index index)
{
char const * ext = nullptr;
switch (index)
{
case Index::Bits:
ext = kBitsExt;
break;
case Index::Nodes:
ext = kNodesExt;
break;
case Index::Offsets:
ext = kOffsetsExt;
break;
}
return my::JoinFoldersToPath(IndexesDir(localFile), localFile.GetCountryName() + ext);
}
// static
void CountryIndexes::GetIndexesExts(vector<string> & exts)
{
exts.push_back(kBitsExt);
exts.push_back(kNodesExt);
exts.push_back(kOffsetsExt);
}
// static
bool CountryIndexes::IsIndexFile(string const & file)
{
return strings::EndsWith(file, kBitsExt) || strings::EndsWith(file, kNodesExt) ||
strings::EndsWith(file, kOffsetsExt);
}
// static
string CountryIndexes::IndexesDir(LocalCountryFile const & localFile)
{
string dir = localFile.GetDirectory();
CountryFile const & file = localFile.GetCountryFile();
/// @todo It's a temporary code until we will put fIndex->fOffset into mwm container.
/// IndexesDir should not throw any exceptions.
if (dir.empty())
{
// Local file is stored in resources. Need to prepare index folder in the writable directory.
int64_t const version = localFile.GetVersion();
ASSERT_GREATER(version, 0, ());
dir = my::JoinFoldersToPath(GetPlatform().WritableDir(), strings::to_string(version));
if (!MkDirChecked(dir))
MYTHROW(FileSystemException, ("Can't create directory", dir));
}
return my::JoinFoldersToPath(dir, file.GetName());
}
string DebugPrint(CountryIndexes::Index index)
{
switch (index)
{
case CountryIndexes::Index::Bits:
return "Bits";
case CountryIndexes::Index::Nodes:
return "Nodes";
case CountryIndexes::Index::Offsets:
return "Offsets";
}
}
} // namespace platform
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