private NativeData CheckSuperMemoExecutable()
{
var nativeDataCfg = LoadNativeDataConfig();
var smFile = new FilePath(StartupConfig.SMBinPath);
if (smFile.Exists() == false)
{
throw new SMAException(
$"Invalid file path for sm executable file: '{StartupConfig.SMBinPath}' could not be found. SMA cannot continue.");
}
if (smFile.HasPermission(FileIOPermissionAccess.Read) == false)
{
throw new SMAException($"SMA needs read access to execute SM executable at {smFile.FullPath}.");
}
if (smFile.IsLocked())
{
throw new SMAException($"{smFile.FullPath} is locked. Make sure it isn't already running.");
}
var smFileCrc32 = FileEx.GetCrc32(smFile.FullPath);
var nativeData = nativeDataCfg.SafeGet(smFileCrc32.ToUpper(CultureInfo.InvariantCulture));
if (nativeData == null)
{
throw new SMAException($"Unknown SM executable version with crc32 {smFileCrc32}.");
}
LogTo.Information($"SuperMemo version {nativeData.SMVersion} detected");
return(nativeData);
}
public static bool CheckSuperMemoExecutable(
NativeDataCfg nativeDataCfg,
FilePath smFile,
out NativeData nativeData,
out SMAException ex)
{
nativeData = null;
if (smFile == null)
{
ex = new SMAException("SM exe file path is null", new ArgumentNullException(nameof(smFile)));
return(false);
}
if (smFile.Exists() == false)
{
ex = new SMAException(
$"Invalid file path for sm executable file: '{smFile}' could not be found. SMA cannot continue.");
return(false);
}
if (smFile.HasPermission(FileIOPermissionAccess.Read) == false)
{
ex = new SMAException($"SMA needs read access to execute SM executable at {smFile.FullPath}.");
return(false);
}
if (smFile.IsLocked())
{
ex = new SMAException($"{smFile.FullPath} is locked. Make sure it isn't already running.");
return(false);
}
var smFileCrc32 = FileEx.GetCrc32(smFile.FullPath);
nativeData = nativeDataCfg.SafeGet(smFileCrc32.ToUpper(CultureInfo.InvariantCulture));
if (nativeData == null)
{
ex = new SMAException($"Unknown SM executable version with crc32 {smFileCrc32}.");
return(false);
}
ex = null;
return(true);
}
public CollectionFile Create(
[NotNull] ISMAPlugin requester,
int elementId,
[NotNull] Action <Stream> streamWriter,
string extension,
string crc32 = null)
{
if (elementId <= 0)
{
return(null);
}
CollectionFSFile dbFile = null;
try
{
extension = extension?.TrimStart('.');
dbFile = new CollectionFSFile
{
ElementId = elementId,
Extension = extension ?? string.Empty,
PluginId = requester.Id
};
dbFile.Id = DbFiles.Insert(dbFile).AsInt32;
CollectionFile colFile = FromDbFile(dbFile);
DirectoryEx.EnsureExists(Path.GetDirectoryName(colFile.Path));
using (var stream = File.Open(colFile.Path,
System.IO.FileMode.Create,
FileAccess.ReadWrite))
streamWriter(stream);
if (crc32 != null)
{
var fsCrc32 = FileEx.GetCrc32(colFile.Path);
if (fsCrc32 != crc32)
{
throw new IOException($"CRC32 did not match for file {colFile.Path}. Expected {crc32}, got {fsCrc32}");
}
}
return(colFile);
}
catch (Exception ex)
{
LogTo.Error(ex,
"CollectionFS: Create threw an exception.");
try
{
if (dbFile != null)
{
DbFiles.Delete(dbFile.Id);
}
}
catch (Exception dbEx)
{
LogTo.Error(dbEx,
"CollectionFS: Create threw an exception. Exception's DB cleanup code threw an exception");
}
throw;
}
}