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#include "platform/platform.hpp"
#include "platform/platform_unix_impl.hpp"
#include "coding/file_name_utils.hpp"
#include "base/logging.hpp"
#include "base/scope_guard.hpp"
#include "std/algorithm.hpp"
#include "std/cstring.hpp"
#include "std/regex.hpp"
#include "std/unique_ptr.hpp"
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#if defined(OMIM_OS_MAC) || defined(OMIM_OS_IPHONE)
#include <sys/mount.h>
#else
#include <sys/vfs.h>
#endif
namespace
{
struct CloseDir
{
void operator()(DIR * dir) const
{
if (dir)
closedir(dir);
}
};
} // namespace
void Platform::GetSystemFontNames(FilesList & res) const
{
#if defined(OMIM_OS_MAC) || defined(OMIM_OS_IPHONE)
#else
char const * fontsWhitelist[] = {
"Roboto-Medium.ttf",
"Roboto-Regular.ttf",
"DroidSansFallback.ttf",
"DroidSansFallbackFull.ttf",
"DroidSans.ttf",
"DroidSansArabic.ttf",
"DroidSansSemc.ttf",
"DroidSansSemcCJK.ttf",
"DroidNaskh-Regular.ttf",
"Lohit-Bengali.ttf",
"Lohit-Devanagari.ttf",
"Lohit-Tamil.ttf",
"PakType Naqsh.ttf",
"wqy-microhei.ttc",
"Jomolhari.ttf",
"Jomolhari-alpha3c-0605331.ttf",
"Padauk.ttf",
"KhmerOS.ttf",
"Umpush.ttf",
"DroidSansThai.ttf",
"DroidSansArmenian.ttf",
"DroidSansEthiopic-Regular.ttf",
"DroidSansGeorgian.ttf",
"DroidSansHebrew-Regular.ttf",
"DroidSansHebrew.ttf",
"DroidSansJapanese.ttf",
"LTe50872.ttf",
"LTe50259.ttf",
"DevanagariOTS.ttf",
"FreeSans.ttf",
"DejaVuSans.ttf",
"arial.ttf",
"AbyssinicaSIL-R.ttf",
};
char const * systemFontsPath[] = {
"/system/fonts/",
#ifdef OMIM_OS_LINUX
"/usr/share/fonts/truetype/roboto/",
"/usr/share/fonts/truetype/droid/",
"/usr/share/fonts/truetype/ttf-dejavu/",
"/usr/share/fonts/truetype/wqy/",
"/usr/share/fonts/truetype/freefont/",
"/usr/share/fonts/truetype/padauk/",
"/usr/share/fonts/truetype/dzongkha/",
"/usr/share/fonts/truetype/ttf-khmeros-core/",
"/usr/share/fonts/truetype/tlwg/",
"/usr/share/fonts/truetype/abyssinica/",
"/usr/share/fonts/truetype/paktype/",
"/usr/share/fonts/truetype/mapsme/",
#endif
};
const uint64_t fontSizeBlacklist[] = {
183560, // Samsung Duos DroidSans
7140172, // Serif font without Emoji
14416824 // Serif font with Emoji
};
uint64_t fileSize = 0;
for (size_t i = 0; i < ARRAY_SIZE(fontsWhitelist); ++i)
{
for (size_t j = 0; j < ARRAY_SIZE(systemFontsPath); ++j)
{
string const path = string(systemFontsPath[j]) + fontsWhitelist[i];
if (IsFileExistsByFullPath(path))
{
if (GetFileSizeByName(path, fileSize))
{
uint64_t const * end = fontSizeBlacklist + ARRAY_SIZE(fontSizeBlacklist);
if (find(fontSizeBlacklist, end, fileSize) == end)
{
res.push_back(path);
LOG(LINFO, ("Found usable system font", path, "with file size", fileSize));
}
}
}
}
}
#endif
}
// static
Platform::EError Platform::RmDir(string const & dirName)
{
if (rmdir(dirName.c_str()) != 0)
return ErrnoToError();
return ERR_OK;
}
// static
Platform::EError Platform::GetFileType(string const & path, EFileType & type)
{
struct stat stats;
if (stat(path.c_str(), &stats) != 0)
return ErrnoToError();
if (S_ISREG(stats.st_mode))
type = FILE_TYPE_REGULAR;
else if (S_ISDIR(stats.st_mode))
type = FILE_TYPE_DIRECTORY;
else
type = FILE_TYPE_UNKNOWN;
return ERR_OK;
}
bool Platform::IsFileExistsByFullPath(string const & filePath)
{
struct stat s;
return stat(filePath.c_str(), &s) == 0;
}
bool Platform::IsDirectoryEmpty(string const & directory)
{
unique_ptr<DIR, CloseDir> dir(opendir(directory.c_str()));
if (!dir)
return true;
struct dirent * entry;
// Invariant: all files met so far are "." or "..".
while ((entry = readdir(dir.get())) != nullptr)
{
// A file is not a special UNIX file. Early exit here.
if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0)
return false;
}
return true;
}
bool Platform::GetFileSizeByFullPath(string const & filePath, uint64_t & size)
{
struct stat s;
if (stat(filePath.c_str(), &s) == 0)
{
size = s.st_size;
return true;
}
else return false;
}
Platform::TStorageStatus Platform::GetWritableStorageStatus(uint64_t neededSize) const
{
struct statfs st;
int const ret = statfs(m_writableDir.c_str(), &st);
LOG(LDEBUG, ("statfs return =", ret,
"; block size =", st.f_bsize,
"; blocks available =", st.f_bavail));
if (ret != 0)
{
LOG(LERROR, ("Path:", m_writableDir, "statfs error:", ErrnoToError()));
return STORAGE_DISCONNECTED;
}
/// @todo May be add additional storage space.
if (st.f_bsize * st.f_bavail < neededSize)
return NOT_ENOUGH_SPACE;
return STORAGE_OK;
}
uint64_t Platform::GetWritableStorageSpace() const
{
struct statfs st;
int const ret = statfs(m_writableDir.c_str(), &st);
LOG(LDEBUG, ("statfs return =", ret,
"; block size =", st.f_bsize,
"; blocks available =", st.f_bavail));
if (ret != 0)
LOG(LERROR, ("Path:", m_writableDir, "statfs error:", ErrnoToError()));
return (ret != 0) ? 0 : st.f_bsize * st.f_bavail;
}
namespace pl
{
void EnumerateFilesByRegExp(string const & directory, string const & regexp,
vector<string> & res)
{
unique_ptr<DIR, CloseDir> dir(opendir(directory.c_str()));
if (!dir)
return;
regex exp(regexp);
struct dirent * entry;
while ((entry = readdir(dir.get())) != 0)
{
string const name(entry->d_name);
if (regex_search(name.begin(), name.end(), exp))
res.push_back(name);
}
}
} // namespace pl
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