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begin
declare @objectname1 varchar(100)
declare @sql1 nvarchar(4000),@sql2 nvarchar(4000),@sql3 nvarchar(4000),@sql4 nvarchar(4000),@sql5 nvarchar(4000),@sql6 nvarchar(4000),@sql7 nvarchar(4000),@sql8 nvarchar(4000),@sql9 nvarchar(4000),@sql10 nvarchar(4000) DECLARE @OrigSpText1 nvarchar(4000),
@OrigSpText2 nvarchar(4000) ,
@OrigSpText3 nvarchar(4000),
@resultsp nvarchar(4000) declare @i int , @t bigint
declare @m int,@n int,@q int
DECLARE @tablename varchar(255) --触发器所对应的表名
DECLARE @trigtype varchar(6) --触发器类型
DECLARE @type char(1) --对象类型:P-procedure ;V-View; T-trigger
DECLARE @bb bit
SELECT @i=count(1) from sysobjects where name = @objectName
if @i=0
begin
print 'Object ' + @objectName + ' does not exist!'
return
end
SELECT @type= case xtype when 'TR' then 'T' else xtype end from sysobjects where name = @objectName
if (@type<>'T' and @type<>'V' and @type<>'P')
begin
print 'Object ' + @objectName + ' cannt be recognized !'
return
end
SELECT @bb=encrypted FROM syscomments WHERE id = object_id(@objectName)
SELECT @m=max(colid) FROM syscomments WHERE id = object_id(@objectName)
if @bb=0
begin
print 'Object ' + @objectName + ' is not encrypted!'
return
end
-----------------------------------------------------------
--get encrypted data 将加密信息存储于临时表中
create table #temp(colid int,ctext varbinary(8000))
create table #tempresult(cctext nvarchar(4000))
insert #temp SELECT colid,ctext FROM syscomments WHERE id = object_id(@objectName)
IF @type='T'
BEGIN
SET @tablename=(SELECT sysobjects_1.name
FROM dbo.sysobjects INNER JOIN
dbo.sysobjects sysobjects_1 ON dbo.sysobjects.parent_obj = sysobjects_1.id
WHERE (dbo.sysobjects.type = 'TR') AND (dbo.sysobjects.name = @ObjectName))
SET @trigtype=(SELECT CASE WHEN dbo.sysobjects.deltrig > 0 THEN 'DELETE'
WHEN dbo.sysobjects.instrig > 0 THEN 'INSERT'
WHEN dbo.sysobjects.updtrig > 0 THEN 'UPDATE' END
FROM dbo.sysobjects INNER JOIN
dbo.sysobjects sysobjects_1 ON dbo.sysobjects.parent_obj = sysobjects_1.id
WHERE (dbo.sysobjects.type = 'TR') AND (dbo.sysobjects.name = @ObjectName))
END
SET @sql1=case @type
WHEN 'P' THEN 'ALTER PROCEDURE '+ @ObjectName +' WITH ENCRYPTION AS '
WHEN 'V' THEN 'ALTER VIEW '+ @ObjectName +' WITH ENCRYPTION AS SELECT dbo.dtproperties.* FROM dbo.dtproperties'
WHEN 'T' THEN 'ALTER TRIGGER '+@ObjectName+' ON '+ @tablename+' WITH ENCRYPTION FOR '+@trigtype+' AS PRINT ''a'''
END
set @q=len(@sql1)
set @sql1=@sql1 +REPLICATE('-',4000-@q)
SELECT @sql2=REPLICATE('-',4000),@sql3=REPLICATE('-',4000),@sql4=REPLICATE('-',4000),@sql5=REPLICATE('-',4000),@sql6=REPLICATE('-',4000),@sql7=REPLICATE('-',4000),@sql8=REPLICATE('-',4000),@sql9=REPLICATE('-',4000),@sql10=REPLICATE('-',4000)
exec(@sql1+@sql2+@sql3+@sql4+@sql5+@sql6+@sql7+@sql8+@sql9+@sql10)
SELECT @sql1='',@sql2='',@sql3='',@sql4='',@sql5='',@sql6='',@sql7='',@sql8='',@sql9='',@sql10=''
set @n=1 --从编号为1开始
while @n<=@m
begin
SET @OrigSpText1=(SELECT ctext FROM #temp WHERE colid=@n)
SET @OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(@objectName) and colid=@n)
if @n=1
begin
SET @OrigSpText2=case @type
WHEN 'P' THEN 'CREATE PROCEDURE '+ @ObjectName +' WITH ENCRYPTION AS '
WHEN 'V' THEN 'CREATE VIEW '+ @ObjectName +' WITH ENCRYPTION AS SELECT dbo.dtproperties.* FROM dbo.dtproperties'
WHEN 'T' THEN 'CREATE TRIGGER '+@ObjectName+' ON '+ @tablename+' WITH ENCRYPTION FOR '+@trigtype+' AS PRINT ''a'''
END
set @q=4000-len(@OrigSpText2)
set @OrigSpText2=@OrigSpText2+REPLICATE('-',@q)
end
else
begin
SET @OrigSpText2=REPLICATE('-', 4000)
end
SET @i=1
--fill temporary variable
SET @resultsp = replicate(N'A', (datalength(@OrigSpText1) / 2))
--loop
WHILE @i<=datalength(@OrigSpText1)/2
BEGIN
--reverse encryption (XOR original+bogus+bogus encrypted)
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
if @n=1 begin set @sql1=@resultsp end
if @n=2 begin set @sql2=@resultsp end
if @n=3 begin set @sql3=@resultsp end
if @n=4 begin set @sql4=@resultsp end
if @n=5 begin set @sql5=@resultsp end
if @n=6 begin set @sql6=@resultsp end
if @n=7 begin set @sql7=@resultsp end
if @n=8 begin set @sql8=@resultsp end
if @n=9 begin set @sql9=@resultsp end
if @n=10 begin set @sql10=@resultsp end
insert into #tempresult values (@resultsp)
set @n=@n+1
end
drop table #temp
SET @resultsp=case @type
WHEN 'P' THEN 'drop PROCEDURE '+ @ObjectName
WHEN 'V' THEN 'drop VIEW '+ @ObjectName
WHEN 'T' THEN 'drop TRIGGER '+@ObjectName
END
Execute( @resultsp)
if @n=1 begin exec(@sql1) end
if @n=2 begin exec(@sql1 + @sql2) end
if @n=3 begin exec(@sql1 + @sql2+@sql3 ) end
if @n=4 begin exec(@sql1 + @sql2+@sql3 + @sql4 ) end
if @n=5 begin exec(@sql1 + @sql2+@sql3 + @sql4 + @sql5) end
if @n=6 begin exec(@sql1 + @sql2+@sql3 + @sql4 + @sql5+ @sql6) end
if @n=7 begin exec(@sql1 + @sql2+@sql3 + @sql4 + @sql5+ @sql6+ @sql7 ) end
if @n=8 begin exec(@sql1 + @sql2+@sql3 + @sql4 + @sql5+ @sql6+ @sql7 + @sql8) end
if @n=9 begin exec(@sql1 + @sql2+@sql3 + @sql4 + @sql5+ @sql6+ @sql7 + @sql8 + @sql9) end
if @n=10 begin exec(@sql1 + @sql2+@sql3 + @sql4 + @sql5+ @sql6+ @sql7 + @sql8 + @sql8 + @sql10) end
SELECT * from #tempresult
drop table #tempresult
end GO