Delphi讓你發送Flash電子郵件(2) (1)

Delphi讓你發送Flash電子郵件完整源代碼:


{******Unit1.pas源代碼內容如下******}
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls, Psock, NMsmtp;
type
TForm1 = class(TForm)
Label1: TLabel;
txtTo: TEdit;
Label2: TLabel;
txtFrom: TEdit;
Label3: TLabel;
txtSubject: TEdit;
Label4: TLabel;
memContents: TMemo;
Label5: TLabel;
txtUserName: TEdit;
Label6: TLabel;
txtPassWord: TEdit;
chkSmtpVerify: TCheckBox;
btnSend: TButton;
btnOpen: TButton;
txtSwfFile: TEdit;
Label7: TLabel;
OpenDialog1: TOpenDialog;
Label8: TLabel;
txtSmtpServer: TEdit;
NMSMTP1: TNMSMTP;
Label9: TLabel;
txtPort: TEdit;
procedure btnOpenClick(Sender: TObject);
procedure btnSendClick(Sender: TObject);
procedure NMSMTP1SendStart(Sender: TObject);
procedure NMSMTP1Connect(Sender: TObject);
procedure chkSmtpVerifyClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;
function EncodeString(Decoded:string):String;
function EncodeBASE64(Encoded: TMemoryStream {TMailText}; Decoded: TMemoryStream): Integer; //編碼函數
implementation
{$R *.dfm}
{對參數TMemoryStrema中的字節流進行Base64編碼，編碼後的結果
保存在Encoded中，函數返回編碼長度}
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;
{為提高效率，每2280字節流為一組進行編碼}
J := Decoded.Size div 2280;
Decoded.Position := 0;
{對前J*2280個字節流進行編碼}
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;

{對以2280為模的余數字節流進行編碼}
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個字符}
if Quads = 76 then
begin
Stream[0] := #76;
EncLine := Stream+#13#10;
Encoded.Write(EncLine[1], Length(EncLine));
Quads := 0;
end;
end;
{“=”補位}
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] := '=';

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;

{對參數Decoded字符串進行Base64編碼，返回編碼後的字符串}
function EncodeString(Decoded:string):String;
var
mmTemp,mmDecoded:TMemoryStream;
strTemp:TStrings;
begin
mmTemp := TMemoryStream.Create;
mmDecoded:=TMemoryStream.Create;
strTemp:=TStringList.Crea