private async Task <InstalledFileInfo> InstallFileAsync(bool force, InstalledFileInfo file)
{
var directory = Path.GetDirectoryName(file.FullPath);
if (!_fs.Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
var fileResult = new InstalledFileInfo
{
FullPath = file.FullPath,
RegistryFile = file.RegistryFile
};
if (_fs.File.Exists(file.FullPath))
{
if (force)
{
_fs.File.Delete(file.FullPath);
}
else if (string.IsNullOrEmpty(file.RegistryFile.Hash?.Value))
{
file.Status = FileStatus.Installed;
return(file);
}
else
{
return(ValidateHash(force, file, fileResult, _fs.File.ReadAllText(file.FullPath)));
}
}
if (string.IsNullOrEmpty(file.RegistryFile.Url))
{
file.Status = FileStatus.NotDownloadable;
file.Reason = $"No URL provided.";
return(file);
}
if (!Uri.IsWellFormedUriString(file.RegistryFile.Url, UriKind.Absolute))
{
file.Status = FileStatus.NotDownloadable;
file.Reason = $"Provided file URL '{file.RegistryFile.Url}' is not a valid url.";
return(file);
}
var response = await _http.GetAsync(file.RegistryFile.Url).ConfigureAwait(false);
try
{
response.EnsureSuccessStatusCode();
}
catch (Exception exc)
{
fileResult.Status = FileStatus.NotDownloadable;
fileResult.Reason = $"Failed to download file from {file.RegistryFile.Url}: Received status {response.StatusCode}.\n{exc.Message}";
return(fileResult);
}
var content = await response.Content.ReadAsStringAsync();
return(ValidateHash(force, file, fileResult, content));
}
private InstalledFileInfo ValidateHash(bool force, InstalledFileInfo file, InstalledFileInfo fileResult, string content)
{
var lines = content.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
var hash = Hashing.GetHash(lines);
if (!force && hash != file.RegistryFile.Hash.Value)
{
fileResult.Status = FileStatus.HashMismatch;
fileResult.Reason = $"Expected hash {file.RegistryFile.Hash.Value}, received {hash}. The file was either corrupted during download, or the wrong hash was pushed to the registry.";
return(fileResult);
}
else
{
_fs.File.WriteAllText(file.FullPath, content);
fileResult.Status = FileStatus.Installed;
return(fileResult);
}
}
private async Task <InstalledFileInfo> GetPackageFileInfo(string packagePath, RegistryFile file)
{
if (!RegistryFile.ValidFilename.IsMatch(file.Filename))
{
throw new UnauthorizedAccessException($"Only files relative to the package (file.cs) or to vam (/file.cs) are accepted. Value: '{file.Filename}'");
}
var fullPath = file.Filename.StartsWith("/")
? Path.Combine(_folders.FromRelativeToVam(file.Filename.Substring(1)))
: Path.Combine(packagePath, file.Filename);
var info = new InstalledFileInfo
{
FullPath = fullPath,
RegistryFile = file
};
var(status, reason) = await GetFileStatusAsync(file, fullPath).ConfigureAwait(false);
info.Status = status;
info.Reason = reason;
return(info);
}
