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WL #3337 (Event scheduler new architecture)

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move back THD::change_security_context to event_change_security_context
This commit is contained in:
andrey@lmy004.
2006-07-13 12:19:01 +02:00
parent dd31d45789
commit 9eee0ee47a
3 changed files with 65 additions and 69 deletions
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69
sql/event_data_objects.cc
View File

@ -25,6 +25,65 @@
#define EVEX_MAX_INTERVAL_VALUE 1000000000L
/*
Switches the security context
SYNOPSIS
event_change_security_context()
thd Thread
user The user
host The host of the user
db The schema for which the security_ctx will be loaded
backup Where to store the old context
RETURN VALUE
FALSE OK
TRUE Error (generates error too)
*/
static bool
event_change_security_context(THD *thd, LEX_STRING user, LEX_STRING host,
LEX_STRING db, Security_context *backup)
{
DBUG_ENTER("event_change_security_context");
DBUG_PRINT("info",("%s@%s@%s", user.str, host.str, db.str));
#ifndef NO_EMBEDDED_ACCESS_CHECKS
*backup= thd->main_security_ctx;
if (acl_getroot_no_password(&thd->main_security_ctx, user.str, host.str,
host.str, db.str))
{
my_error(ER_NO_SUCH_USER, MYF(0), user.str, host.str);
DBUG_RETURN(TRUE);
}
thd->security_ctx= &thd->main_security_ctx;
#endif
DBUG_RETURN(FALSE);
}
/*
Restores the security context
SYNOPSIS
event_restore_security_context()
thd Thread
backup Context to switch to
*/
static void
event_restore_security_context(THD *thd, Security_context *backup)
{
DBUG_ENTER("event_restore_security_context");
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (backup)
{
thd->main_security_ctx= *backup;
thd->security_ctx= &thd->main_security_ctx;
}
#endif
DBUG_VOID_RETURN;
}
/*
Returns a new instance
@ -1686,7 +1745,8 @@ Event_job_data::compile(THD *thd, MEM_ROOT *mem_root)
thd->query_length= show_create.length();
DBUG_PRINT("info", ("query:%s",thd->query));
thd->change_security_context(definer_user, definer_host, dbname, &save_ctx);
event_change_security_context(thd, definer_user, definer_host, dbname,
&save_ctx);
thd->lex= &lex;
mysql_init_query(thd, (uchar*) thd->query, thd->query_length);
if (MYSQLparse((void *)thd) || thd->is_fatal_error)
@ -1717,7 +1777,7 @@ Event_job_data::compile(THD *thd, MEM_ROOT *mem_root)
done:
lex_end(&lex);
thd->restore_security_context(&save_ctx);
event_restore_security_context(thd, &save_ctx);
DBUG_PRINT("note", ("return old data on its place. set back NAMES"));
thd->lex= old_lex;
@ -1765,7 +1825,8 @@ Event_job_data::execute(THD *thd)
if ((ret= compile(thd, NULL)))
goto done;
thd->change_security_context(definer_user, definer_host, dbname, &save_ctx);
event_change_security_context(thd, definer_user, definer_host, dbname,
&save_ctx);
/*
THD::~THD will clean this or if there is DROP DATABASE in the SP then
it will be free there. It should not point to our buffer which is allocated
@ -1790,7 +1851,7 @@ Event_job_data::execute(THD *thd)
ret= -99;
}
thd->restore_security_context(&save_ctx);
event_restore_security_context(thd, &save_ctx);
done:
thd->end_statement();
thd->cleanup_after_query();