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Commit98b3c3c

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committed
Allow CREATE/ALTER ROLE PASSWORD NULL to allow restoring the default state
of having no password.
1 parentdcc7da8 commit98b3c3c

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3 files changed

+24
-10
lines changed

3 files changed

+24
-10
lines changed

‎doc/src/sgml/ref/create_role.sgml‎

Lines changed: 8 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$PostgreSQL: pgsql/doc/src/sgml/ref/create_role.sgml,v 1.5 2005/12/18 02:17:16 petere Exp $
2+
$PostgreSQL: pgsql/doc/src/sgml/ref/create_role.sgml,v 1.6 2005/12/23 16:46:39 petere Exp $
33
PostgreSQL documentation
44
-->
55

@@ -188,10 +188,13 @@ where <replaceable class="PARAMETER">option</replaceable> can be:
188188
<listitem>
189189
<para>
190190
Sets the role's password. (A password is only of use for
191-
roles having the <literal>LOGIN</literal> attribute, but you can
192-
nonetheless define one for roles without it.)
193-
If you do not plan to use password
194-
authentication you can omit this option.
191+
roles having the <literal>LOGIN</literal> attribute, but you
192+
can nonetheless define one for roles without it.) If you do
193+
not plan to use password authentication you can omit this
194+
option. If no password is specified, the password will be set
195+
to null and password authentication will always fail for that
196+
user. A null password can optionally be written explicitly as
197+
<literal>PASSWORD NULL</literal>.
195198
</para>
196199
</listitem>
197200
</varlistentry>

‎src/backend/commands/user.c‎

Lines changed: 11 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
77
* Portions Copyright (c) 1994, Regents of the University of California
88
*
9-
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.166 2005/11/22 18:17:09 momjian Exp $
9+
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.167 2005/12/23 16:46:39 petere Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -225,7 +225,7 @@ CreateRole(CreateRoleStmt *stmt)
225225
defel->defname);
226226
}
227227

228-
if (dpassword)
228+
if (dpassword&&dpassword->arg)
229229
password=strVal(dpassword->arg);
230230
if (dissuper)
231231
issuper=intVal(dissuper->arg)!=0;
@@ -517,7 +517,7 @@ AlterRole(AlterRoleStmt *stmt)
517517
defel->defname);
518518
}
519519

520-
if (dpassword)
520+
if (dpassword&&dpassword->arg)
521521
password=strVal(dpassword->arg);
522522
if (dissuper)
523523
issuper=intVal(dissuper->arg);
@@ -573,7 +573,7 @@ AlterRole(AlterRoleStmt *stmt)
573573
!dconnlimit&&
574574
!rolemembers&&
575575
!validUntil&&
576-
password&&
576+
dpassword&&
577577
roleid==GetUserId()))
578578
ereport(ERROR,
579579
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
@@ -651,6 +651,13 @@ AlterRole(AlterRoleStmt *stmt)
651651
new_record_repl[Anum_pg_authid_rolpassword-1]='r';
652652
}
653653

654+
/* unset password */
655+
if (dpassword&&dpassword->arg==NULL)
656+
{
657+
new_record_repl[Anum_pg_authid_rolpassword-1]='r';
658+
new_record_nulls[Anum_pg_authid_rolpassword-1]='n';
659+
}
660+
654661
/* valid until */
655662
if (validUntil)
656663
{

‎src/backend/parser/gram.y‎

Lines changed: 5 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@
1111
*
1212
*
1313
* IDENTIFICATION
14-
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.517 2005/12/11 10:54:27 neilc Exp $
14+
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.518 2005/12/23 16:46:39 petere Exp $
1515
*
1616
* HISTORY
1717
* AUTHORDATEMAJOR EVENT
@@ -616,6 +616,10 @@ OptRoleElem:
616616
$$ = makeDefElem("password",
617617
(Node *)makeString($2));
618618
}
619+
|PASSWORDNULL_P
620+
{
621+
$$ = makeDefElem("password",NULL);
622+
}
619623
|ENCRYPTEDPASSWORDSconst
620624
{
621625
$$ = makeDefElem("encryptedPassword",

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