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2008年(8065)

分类: 服务器与存储

2008-04-26 08:32:07

CREATE PROCEDURE sp_decrypt(@objectName varchar(50))
  AS
  begin
  set nocount on
  --CSDN:j9988 copyright:2004.04.15
  --V3.1
  --破解字节不受限制,适用于SQLSERVER2000存储过程,函数,视图,触发器
 
  --修正上一版视图触发器不能正确解密错误
  --发现有错,请E_MAIL:CSDNj9988@tom.com
  begin tran
  declare @objectname1 varchar(100),@orgvarbin varbinary(8000)
  declare @sql1 nvarchar(4000),@sql2 varchar(8000),@sql3 nvarchar(4000),@sql4 nvarchar(4000)
  DECLARE @OrigSpText1 nvarchar(4000), @OrigSpText2 nvarchar(4000) , @OrigSpText3 nvarchar(4000), @resultsp nvarchar(4000)
  declare @i int,@status int,@type varchar(10),@parentid int
  declare @colid int,@n int,@q int,@j int,@k int,@encrypted int,@number int
  select @type=xtype,@parentid=parent_obj from sysobjects where id=object_id(@ObjectName)
  
  create table #temp(number int,colid int,ctext varbinary(8000),encrypted int,status int)
  insert #temp SELECT number,colid,ctext,encrypted,status FROM syscomments WHERE id = object_id(@objectName)
  select @number=max(number) from #temp
  set @k=0
  
  while @k<=@number
  begin
  if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)
  begin
  if @type='P'
  set @sql1=(case when @number>1 then 'ALTER PROCEDURE '+ @objectName +';'+rtrim(@k)+' WITH ENCRYPTION AS '
  else 'ALTER PROCEDURE '+ @objectName+' WITH ENCRYPTION AS '
  end)
  
  if @type='TR'
  begin
  declare @parent_obj varchar(255),@tr_parent_xtype varchar(10)
  select @parent_obj=parent_obj from sysobjects where id=object_id(@objectName)
  select @tr_parent_xtype=xtype from sysobjects where id=@parent_obj
  if @tr_parent_xtype='V'
  begin
  set @sql1='ALTER TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTERD OF INSERT AS PRINT 1 '
  end
  else
  begin
  set @sql1='ALTER TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR INSERT AS PRINT 1 '
  end
  
  end
  if @type='FN' or @type='TF' or @type='IF'
  set @sql1=(case @type when 'TF' then
  'ALTER FUNCTION '+ @objectName+'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '
  when 'FN' then
  'ALTER FUNCTION '+ @objectName+'(@a char(1)) returns char(1) with encryption as begin return @a end'
  when 'IF' then
  'ALTER FUNCTION '+ @objectName+'(@a char(1)) returns table with encryption as return select @a as a'
  end)
  
  if @type='V'
  set @sql1='ALTER VIEW '+@objectname+' WITH ENCRYPTION AS SELECT 1 as f'
  
  set @q=len(@sql1)
  set @sql1=@sql1+REPLICATE('-',4000-@q)
  select @sql2=REPLICATE('-',8000)
  set @sql3='exec(@sql1'
  select @colid=max(colid) from #temp where number=@k
  set @n=1
  while @n<=CEILING(1.0*(@colid-1)/2) and len(@sQL3)<=3996
  begin
  set @sql3=@sql3+'+@'
  set @n=@n+1
  end
  set @sql3=@sql3+')'
  exec sp_executesql @sql3,N'@Sql1 nvarchar(4000),@ varchar(8000)',@sql1=@sql1,@=@sql2
  
  end
  set @k=@k+1
  end
  
  set @k=0
  while @k<=@number
  begin
  
  if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)
  begin
  select @colid=max(colid) from #temp where number=@k
  set @n=1
  
  while @n<=@colid
  begin
  select @OrigSpText1=ctext,@encrypted=encrypted,@status=status FROM #temp WHERE colid=@n and number=@k
  
  SET @OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(@objectName) and colid=@n and number=@k)
  if @n=1
  begin
  if @type='P'
  SET @OrigSpText2=(case when @number>1 then 'CREATE PROCEDURE '+ @objectName +';'+rtrim(@k)+' WITH ENCRYPTION AS '
  else 'CREATE PROCEDURE '+ @objectName +' WITH ENCRYPTION AS '
  end)
  
  
  if @type='FN' or @type='TF' or @type='IF'
  SET @OrigSpText2=(case @type when 'TF' then
  'CREATE FUNCTION '+ @objectName+'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '
  when 'FN' then
  'CREATE FUNCTION '+ @objectName+'(@a char(1)) returns char(1) with encryption as begin return @a end'
  when 'IF' then
  'CREATE FUNCTION '+ @objectName+'(@a char(1)) returns table with encryption as return select @a as a'
  end)
  
  if @type='TR'
  begin
  
  if @tr_parent_xtype='V'
  begin
  set @OrigSpText2='CREATE TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTEAD OF INSERT AS PRINT 1 '
  end
  else
  begin
  set @OrigSpText2='CREATE TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR INSERT AS PRINT 1 '
  end
  
  end
  
  if @type='V'
  set @OrigSpText2='CREATE VIEW '+@objectname+' WITH ENCRYPTION AS SELECT 1 as f'
  
  set @q=4000-len(@OrigSpText2)
  set @OrigSpText2=@OrigSpText2+REPLICATE('-',@q)
  end
  else
  begin
  SET @OrigSpText2=REPLICATE('-', 4000)
  end
  SET @i=1
  
  SET @resultsp = replicate(N'A', (datalength(@OrigSpText1) / 2))
  
  WHILE @i<=datalength(@OrigSpText1)/2
  BEGIN
  
  SET @resultsp = stuff(@resultsp, @i, 1, NCHAR(UNICODE(substring(@OrigSpText1, @i, 1)) ^
  (UNICODE(substring(@OrigSpText2, @i, 1)) ^
  UNICODE(substring(@OrigSpText3, @i, 1)))))
  SET @i=@i+1
  END
  set @orgvarbin=cast(@OrigSpText1 as varbinary(8000))
  set @resultsp=(case when @encrypted=1
  then @resultsp
  else convert(nvarchar(4000),case when @status&2=2 then uncompress(@orgvarbin) else @orgvarbin end)
  end)
  print @resultsp
  
  set @n=@n+1
  
  end
  
  end
  set @k=@k+1
  end
  
  drop table #temp
  rollback tran
  end
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