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Merge mysql.com:/home/alik/Documents/AllProgs/MySQL/devel/5.0-rev-1.2004.2.1

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into  mysql.com:/home/alik/Documents/AllProgs/MySQL/devel/5.1-tree
This commit is contained in:
anozdrin@mysql.com
2006-02-06 15:23:17 +03:00
parent 71fb62942a 378147a23d
commit 4d8a51ca9d
7 changed files with 572 additions and 375 deletions
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69
sql/sql_trigger.cc
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@ -390,7 +390,12 @@ bool Table_triggers_list::create_trigger(THD *thd, TABLE_LIST *tables,
for (trg_field= (Item_trigger_field *)(lex->trg_table_fields.first);
trg_field; trg_field= trg_field->next_trg_field)
{
trg_field->setup_field(thd, table);
/*
NOTE: now we do not check privileges at CREATE TRIGGER time. This will
be changed in the future.
*/
trg_field->setup_field(thd, table, NULL);
if (!trg_field->fixed &&
trg_field->fix_fields(thd, (Item **)0))
return 1;
@ -826,8 +831,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
char *trg_name_buff;
List_iterator_fast<ulonglong> itm(triggers->definition_modes_list);
List_iterator_fast<LEX_STRING> it_definer(triggers->
definers_list);
List_iterator_fast<LEX_STRING> it_definer(triggers->definers_list);
LEX *old_lex= thd->lex, lex;
sp_rcontext *save_spcont= thd->spcont;
ulong save_sql_mode= thd->variables.sql_mode;
@ -842,6 +846,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
{
trg_sql_mode= itm++;
LEX_STRING *trg_definer= it_definer++;
thd->variables.sql_mode= (ulong)*trg_sql_mode;
lex_start(thd, (uchar*)trg_create_str->str, trg_create_str->length);
@ -915,11 +920,11 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
(Item_trigger_field *)(lex.trg_table_fields.first);
trg_field;
trg_field= trg_field->next_trg_field)
trg_field->setup_field(thd, table);
triggers->m_spec_var_used[lex.trg_chistics.event]
[lex.trg_chistics.action_time]=
lex.trg_table_fields.first ? TRUE : FALSE;
{
trg_field->setup_field(thd, table,
&triggers->subject_table_grants[lex.trg_chistics.event]
[lex.trg_chistics.action_time]);
}
lex_end(&lex);
}
@ -1159,38 +1164,30 @@ bool Table_triggers_list::process_triggers(THD *thd, trg_event_type event,
if (sp_change_security_context(thd, sp_trigger, &save_ctx))
return TRUE;
/*
Fetch information about table-level privileges to GRANT_INFO structure for
subject table. Check of privileges that will use it and information about
column-level privileges will happen in Item_trigger_field::fix_fields().
*/
fill_effective_table_privileges(thd,
&subject_table_grants[event][time_type],
table->s->db.str, table->s->table_name.str);
/* Check that the definer has TRIGGER privilege on the subject table. */
if (!(subject_table_grants[event][time_type].privilege & TRIGGER_ACL))
{
TABLE_LIST table_list, **save_query_tables_own_last;
ulong wanted_access = TRIGGER_ACL;
bzero((char *) &table_list, sizeof (table_list));
table_list.db= (char *) table->s->db.str;
table_list.db_length= table->s->db.length;
table_list.table_name= table->s->table_name.str;
table_list.table_name_length= table->s->table_name.length;
table_list.alias= (char *) table->alias;
table_list.table= table;
save_query_tables_own_last= thd->lex->query_tables_own_last;
thd->lex->query_tables_own_last= 0;
/*
If the trigger uses special variables (NEW/OLD), check that we have
SELECT and UPDATE privileges on the subject table.
*/
char priv_desc[128];
get_privilege_desc(priv_desc, sizeof(priv_desc), TRIGGER_ACL);
if (is_special_var_used(event, time_type))
wanted_access|= SELECT_ACL | UPDATE_ACL;
my_error(ER_TABLEACCESS_DENIED_ERROR, MYF(0), priv_desc,
thd->security_ctx->priv_user, thd->security_ctx->host_or_ip,
table->s->table_name);
err_status= check_table_access(thd, wanted_access, &table_list, 0);
thd->lex->query_tables_own_last= save_query_tables_own_last;
if (err_status)
{
sp_restore_security_context(thd, save_ctx);
return TRUE;
}
sp_restore_security_context(thd, save_ctx);
return TRUE;
}
#endif // NO_EMBEDDED_ACCESS_CHECKS
thd->reset_sub_statement_state(&statement_state, SUB_STMT_TRIGGER);