/// <summary> /// 接收方的文件进行续传;如果回复是null;说明不存在 /// </summary> /// <param name="fileLable">文件标签</param> /// <param name="stateOne">StateBase</param> /// <returns>byte[]</returns> internal byte[] FileContinue(int fileLable, StateBase stateOne) { byte[] haveDate = null; FileState state = FileLabelToState(fileLable); if (state != null && state.StateFile == 2) { haveDate = EncryptionDecryptFile.ReceiveContingueEncryption(PasswordCode._fileContinue, state); ExpandBuffer(state, stateOne); } return(haveDate); }
/// <summary> /// 发送方发过来的数据; /// </summary> /// <param name="receiveToDate">收到的数据</param> /// <param name="stateOne">StateBase</param> /// <returns>需要回复的数据</returns> internal byte[] ReceiveDateTO(byte[] receiveToDate, StateBase stateOne) { byte[] haveDate = null; int fileLabel = ByteToDate.ByteToInt(3, receiveToDate); byte code = receiveToDate[2]; if (code == PasswordCode._fileHeadCode)//说明发送过来的是文件是否传输的包头信息 { FileStream fs = null; FileState stateHead = EncryptionDecryptFile.FileHeadDecrypt(receiveToDate, fs); string fileName = ReceiveMust.ReceiveOrNo(stateHead.FileLabel, stateHead.FileName, stateHead.FileLenth); if (fileName == "") { haveDate = EncryptionDecryptFile.FileSevenEncryption(PasswordCode._receiveUser, PasswordCode._fileRefuse, fileLabel); } else { fs = CommonMethod.FileStreamWrite(fileName); if (fs == null) { haveDate = EncryptionDecryptFile.FileSevenEncryption(PasswordCode._receiveUser, PasswordCode._fileRefuse, fileLabel); } else { ExpandBuffer(stateHead, stateOne); stateHead.FileName = fileName; stateHead.Filestream = fs; stateHead.StateFile = 1; FS.Add(stateHead); haveDate = EncryptionDecryptFile.FileSevenEncryption(PasswordCode._receiveUser, PasswordCode._fileOk, fileLabel); } } return(haveDate); } FileState state = FileLabelToState(fileLabel); if (state == null) { if (code == PasswordCode._fileCancel) { return(null); } else { return(EncryptionDecryptFile.FileSevenEncryption(PasswordCode._receiveUser, PasswordCode._fileCancel, fileLabel)); } } else { switch (code) { case PasswordCode._fileSubjectCode: //收到的是文件主体代码 haveDate = EncryptionDecryptFile.FileSubjectDecrypt(state, receiveToDate); ReceiveMust.FileProgress(state); //输出文件进度 if (state.FileOkLenth >= state.FileLenth) //说明文件接收完成了 { FileRemove(fileLabel); ReceiveMust.ReceiveSuccess(fileLabel); } break; case PasswordCode._fileCancel: //对方已经取消了这个文件; FileRemove(fileLabel); ReceiveMust.FileCancel(fileLabel); break; case PasswordCode._sendStop: //对方暂停发送 FileStopIn(state, ReceiveMust); break; case PasswordCode._fileContinue: //对方发过来一个续传的确认信息;你是否同意; ExpandBuffer(state, stateOne); //有可能是stateOne换过了; FileStopIn(state, ReceiveMust); //对方已经暂停了这个文件;我这边肯定也要先暂停掉 bool orStop = ReceiveMust.FileOrNotContingue(fileLabel); //让客户确认;是否续传 if (orStop) { haveDate = EncryptionDecryptFile.ReceiveContingueEncryption(PasswordCode._fileContinueOk, state); state.StateFile = 1; ReceiveMust.FileContinue(fileLabel); } else { haveDate = EncryptionDecryptFile.FileSevenEncryption(PasswordCode._receiveUser, PasswordCode._fileContinueNo, fileLabel); } break; case PasswordCode._fileContinueOk: //对方同意续传 state.StateFile = 1; ReceiveMust.FileContinue(fileLabel); haveDate = EncryptionDecryptFile.FileSubjectDecrypt(state, receiveToDate); if (state.FileOkLenth >= state.FileLenth) //说明文件接收完成了 { FileRemove(fileLabel); ReceiveMust.ReceiveSuccess(fileLabel); } break; case PasswordCode._fileContinueNo: //对方拒绝续传 ReceiveMust.FileNoContinue(fileLabel); FileStopIn(state, ReceiveMust); break; } } return(haveDate); }