var Form1: TForm1; function EncodeString(Decoded:string):String; function EncodeBASE64(Encoded: TMemoryStream {TMailText}; Decoded: TMemoryStream): Integer; //编码函数 implementation {$R *.dfm} {对参数TMemoryStrema中的字节流进行Base64编码，编码后的结果 保存在Encoded中，函数返回编码长度} function EncodeBASE64(Encoded: TMemoryStream ; Decoded: TMemoryStream): Integer; const _Code64: String[64] = ('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'); var I: LongInt; B: array[0..2279] of Byte; J, K, L, M, Quads: Integer; Stream: string[76]; EncLine: String; begin Encoded.Clear; Stream := ''; Quads := 0; {为提高效率，每2280字节流为一组进行编码} J := Decoded.Size div 2280; Decoded.Position := 0; {对前J*2280个字节流进行编码} for I := 1 to J do begin Decoded.Read(B, 2280); for M := 0 to 39 do begin for K := 0 to 18 do begin L:= 57*M + 3*K; Stream[Quads+1] := _Code64[(B[L] div 4)+1]; Stream[Quads+2] := _Code64[(B[L] mod 4)*16 + (B[L+1] div 16)+1]; Stream[Quads+3] := _Code64[(B[L+1] mod 16)*4 + (B[L+2] div 64)+1]; Stream[Quads+4] := _Code64[B[L+2] mod 64+1]; Inc(Quads, 4); if Quads = 76 then begin Stream[0] := #76; EncLine := Stream+#13#10; Encoded.Write(EncLine[1], Length(EncLine)); Quads := 0; end; end; end; end;
{对以2280为模的余数字节流进行编码} J := (Decoded.Size mod 2280) div 3; for I := 1 to J do begin Decoded.Read(B, 3); Stream[Quads+1] := _Code64[(B[0] div 4)+1]; Stream[Quads+2] := _Code64[(B[0] mod 4)*16 + (B[1] div 16)+1]; Stream[Quads+3] := _Code64[(B[1] mod 16)*4 + (B[2] div 64)+1]; Stream[Quads+4] := _Code64[B[2] mod 64+1]; Inc(Quads, 4); {每行76个字符} if Quads = 76 then begin Stream[0] := #76; EncLine := Stream+#13#10; Encoded.Write(EncLine[1], Length(EncLine)); Quads := 0; end; end; {“=”补位} if (Decoded.Size mod 3) = 2 then begin Decoded.Read(B, 2); Stream[Quads+1] := _Code64[(B[0] div 4)+1]; Stream[Quads+2] := _Code64[(B[0] mod 4)*16 + (B[1] div 16)+1]; Stream[Quads+3] := _Code64[(B[1] mod 16)*4 + 1]; Stream[Quads+4] := '='; Inc(Quads, 4); end;
if (Decoded.Size mod 3) = 1 then begin Decoded.Read(B, 1); Stream[Quads+1] := _Code64[(B[0] div 4)+1]; Stream[Quads+2] := _Code64[(B[0] mod 4)*16 + 1]; Stream[Quads+3] := '=';[page] Stream[Quads+4] := '='; Inc(Quads, 4); end;
Stream[0] := Chr(Quads); if Quads > 0 then begin EncLine := Stream+#13#10; Encoded.Write(EncLine[1], Length(EncLine)); end;
Result := Encoded.Size; end;
{对参数Decoded字符串进行Base64编码，返回编码后的字符串} function EncodeString(Decoded:string):String; var mmTemp,mmDecoded:TMemoryStream; strTemp:TStrings; begin mmTemp := TMemoryStream.Create; mmDecoded:=TMemoryStream.Create; strTemp:=TStringList.Create; strTemp.Add(Decoded); strTemp.SaveToStream(mmTemp); mmTemp.Position := 0; {剔除mmTemp从strTemp中带来的字符#13#10} mmDecoded.CopyFrom(mmTemp,mmTemp.Size-2); {对mmDecoded进行Base64编码，由mmTemp返回编码后的结果} EncodeBASE64(mmTemp,mmDecoded); {获得Base64编码后的字符串} mmTemp.Position:=0; strTemp.LoadFromStream(mmTemp); {返回结果必须从strTemp[0]中获得，如果使用strTemp.Text会 带来不必要的字符#13#10} Result:=strTemp[0]; end;
procedure TForm1.btnOpenClick(Sender: TObject); begin {打开对话框，选择SWF文件} if OpenDialog1.Execute then begin
nd; end; procedure TForm1.btnSendClick(Sender: TObject); var mmSwfFile,mmEncoded:TMemoryStream; iResult:Integer; strsTemp:TStrings; strContents:TStringList; i:Integer; begin {验证用户输入信息} if txtTo.Text='' then begin ShowMessage('请输入收信人！'); Exit; end; if txtFrom.Text='' then begin ShowMessage('请输入发信人！'); Exit; end; if txtSmtpServer.Text='' then begin ShowMessage('请输入SMTP服务器！'); Exit; end; if txtPort.Text='' then begin ShowMessage('请输入端口号！'); Exit; end; if txtSwfFile.Text='' then begin ShowMessage('请选择SWF文件!'); Exit; end;
{检验服务器认证的用户名和密码} if chkSmtpVerify.Checked = True then if (txtUserName.Text='') or (txtPassword.Text='') then begin ShowMessage('您已选择SMTP服务器需要认证'+#13#10+'请输入用户名和密码！'); Exit; end;
{设置SMTP服务器地址、端口} NMSMTP1.Host:=txtSmtpServer.Text; NMSMTP1.Port:=StrToInt(txtPort.Text); {断开原来的连接，保证TForm1.NMSMTP1Connect中服务器认证的执行} if NMSMTP1.Connected then begin NMSMTP1.Disconnect; end;
