示例#1
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="input"></param>
        /// <param name="output"></param>
        /// <param name="Password"></param>
        private void Load(Stream input, Stream output, string Password)
        {
            //Release some resources:
            if (this._package != null)
            {
                this._package.Close();
                this._package = null;
            }
            if (this._stream != null)
            {
                this._stream.Close();
                this._stream.Dispose();
                this._stream = null;
            }

            if (Password != null)
            {
                Stream encrStream = new MemoryStream();
                CopyStream(input, ref encrStream);
                EncryptedPackageHandler eph = new EncryptedPackageHandler();
                Encryption.Password = Password;
                this._stream        = eph.DecryptPackage((MemoryStream)encrStream, Encryption);
            }
            else
            {
                this._stream = output;
                CopyStream(input, ref this._stream);
            }

            try
            {
                this._package = Package.Open(this._stream, FileMode.Open, FileAccess.ReadWrite);
            }
            catch (Exception ex)
            {
                EncryptedPackageHandler eph = new EncryptedPackageHandler();
                if (Password == null && EncryptedPackageHandler.IsStorageILockBytes(eph.GetLockbyte((MemoryStream)_stream)) == 0)
                {
                    throw new Exception("Can not open the package. Package is an OLE compound document. If this is an encrypted package, please supply the password", ex);
                }
                else
                {
                    throw (ex);
                }
            }

            //Clear the workbook so that it gets reinitialized next time
            this._workbook = null;
        }
示例#2
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="input"></param>
        /// <param name="output"></param>
        /// <param name="Password"></param>
        private void Load(Stream input, Stream output, string Password)
        {
            //Release some resources:
            if (this._package != null)
            {
                this._package.Flush();
                this._package = null;
            }
            if (this._stream != null)
            {
                this._stream.Close();
                this._stream.Dispose();
                this._stream = null;
            }

            if (Password != null)
            {
                Stream encrStream = new MemoryStream();
                CopyStream(input, ref encrStream);
                EncryptedPackageHandler eph=new EncryptedPackageHandler();
                Encryption.Password = Password;
                this._stream = eph.DecryptPackage((MemoryStream)encrStream, Encryption);
            }
            else
            {
                this._stream = output;
                CopyStream(input, ref this._stream);
            }

            try
            {
                this._package = Package.Open(this._stream, FileMode.Open, FileAccess.ReadWrite);
            }
            catch (Exception ex)
            {
                EncryptedPackageHandler eph = new EncryptedPackageHandler();
                if (Password == null && EncryptedPackageHandler.IsStorageILockBytes(eph.GetLockbyte((MemoryStream)_stream)) == 0)
                {
                    throw new Exception("Can not open the package. Package is an OLE compound document. If this is an encrypted package, please supply the password", ex);
                }
                else
                {
                    throw (ex);
                }
            }

            //Clear the workbook so that it gets reinitialized next time
            this._workbook = null;
        }