/// <summary>
/// Load pdf file by stream
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
private bool LoadFileByStream(string fileName)
{
bool isrmsProtect = true;
Stream stream = null;
byte[] license = null;
string rmsUserPassword = string.Empty;
if (rmsUserpEncrypt)
{
try
{
//RMS化PDFファイルから、RMSライセンス情報と、暗号化された本文情報を分割する
//RMS署名情報から、RMSサーバー情報を抽出する
//RMSサーバーでの認証
//RMSサーバーからRMSライセンスの取得
license = SafeFileApiNativeMethods.IpcfGetSerializedLicenseFromFile(fileName);
}
catch (Exception ex)
{
isrmsProtect = false;
}
}
if (isrmsProtect && rmsUserpEncrypt)
{
try
{
rmsUserPassword = GenerateRandom(32);
//RMSライセンスから、復号鍵の抽出
SafeInformationProtectionKeyHandle keyHandle = SafeNativeMethods.IpcGetKey(license, false, false, true, this);
//RMSライセンスから、権利リストの抽出
//Collection<UserRights> userRights = new Collection<UserRights>();
//userRights = SafeNativeMethods.IpcGetSerializedLicenseUserRightsList(license, keyHandle);
bool accessGranted = SafeNativeMethods.IpcAccessCheck(keyHandle, "VIEW");
//本文情報を復号鍵で、復号
tempFile = GenerateRandom(10);
//一時フォルダ作成 add kondo
System.IO.Directory.CreateDirectory(Path.GetTempPath() + @"PDFViewer\");
tempFile = Path.GetTempPath() + @"PDFViewer\" + tempFile;
Stream outPutRmsStream = new FileStream(tempFile, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
stream = new FileStream(fileName, FileMode.Open);
if (accessGranted)
{
SafeFileApiNativeMethods.IpcfDecryptFileStream(stream, fileName,
SafeFileApiNativeMethods.DecryptFlags.IPCF_DF_FLAG_DEFAULT, false,
false, false, this, ref outPutRmsStream);
}
outPutRmsStream.Close();
outPutRmsStream.Dispose();
PdfReader reader = new PdfReader(tempFile);
outPutStream = new FileStream(tempFile + ".tmp", FileMode.Create, FileAccess.ReadWrite, FileShare.None);
PdfEncryptor.Encrypt(reader, outPutStream, false, rmsUserPassword, "", 0);
rmsUserpEncrypt = false;
reader.Close();
reader.Dispose();
File.Delete(tempFile);
}
catch (InformationProtectionException ex)
{
//DirectoryDelete MSIPC
DeleteDirectorySelect(true);
isrmsProtect = false;
MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK);
}
catch (Exception ex)
{
isrmsProtect = false;
}
}
try
{
if (isrmsProtect)
{
pdfDoc.LoadPDF(tempFile + ".tmp");
}
else
{
pdfDoc.LoadPDF(fileName);
}
if (stream != null)
{
stream.Close();
stream.Dispose();
}
return(true);
}
catch (System.Security.SecurityException sex)
{
if (stream != null)
{
stream.Close();
stream.Dispose();
}
if (pdfDoc != null)
{
pdfDoc.Dispose();
pdfDoc = null;
}
pdfDoc = new PDFWrapper();
if (!rmsUserpEncrypt)
{
pdfDoc.UserPassword = rmsUserPassword;
}
else
{
String password = Interaction.InputBox("Please enter the document password:"******"Document Password", "");
if (password.Equals(string.Empty))
{
return(false);
}
pdfDoc.UserPassword = password;
}
return(LoadFileByStream(fileName));
}
catch (Exception ex)
{
//MessageBox.Show(ex.ToString());
return(false);
}
}