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small cleanup in sql_acl.cc:

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use LEX_STRING, keep similar functions together, remove duplicated code
This commit is contained in:
Sergei Golubchik
2014-03-26 09:41:37 +01:00
parent 88ec8a08f3
commit d0c6a05eb5
2 changed files with 36 additions and 34 deletions
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68
sql/sql_acl.cc
View File

@ -5805,14 +5805,17 @@ bool mysql_routine_grant(THD *thd, TABLE_LIST *table_list, bool is_proc,
DBUG_RETURN(result);
}
static void append_user(String *str, const char *u, const char *h)
/**
append a user or role name to a buffer that will be later used as an error message
*/
static void append_user(String *str, const LEX_STRING *u, const LEX_STRING *h)
{
if (str->length())
str->append(',');
str->append('\'');
str->append(u);
/* hostname part is not relevant for roles, it is always empty */
if (*h)
if (u->length == 0 || h->length != 0)
{
str->append(STRING_WITH_LEN("'@'"));
str->append(h);
@ -5820,6 +5823,25 @@ static void append_user(String *str, const char *u, const char *h)
str->append('\'');
}
static void append_user(String *str, LEX_USER *user)
{
append_user(str, & user->user, & user->host);
}
/**
append a string to a buffer that will be later used as an error message
@note
a string can be either CURRENT_USER or CURRENT_ROLE or NONE, it should be
neither quoted nor escaped.
*/
static void append_str(String *str, const char *s, size_t l)
{
if (str->length())
str->append(',');
str->append(s, l);
}
static int can_grant_role_callback(ACL_USER_BASE *grantee,
ACL_ROLE *role, void *data)
{
@ -5935,13 +5957,15 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
if (!thd->security_ctx->priv_role[0])
{
my_error(ER_INVALID_ROLE, MYF(0), "NONE");
append_user(&wrong_users, "NONE", "");
append_str(&wrong_users, STRING_WITH_LEN("NONE"));
result= 1;
continue;
}
if (!(role_as_user= find_acl_role(thd->security_ctx->priv_role)))
{
append_user(&wrong_users, thd->security_ctx->priv_role, "");
LEX_STRING ls= { thd->security_ctx->priv_role,
strlen(thd->security_ctx->priv_role) };
append_user(&wrong_users, &ls, &empty_lex_str);
result= 1;
continue;
}
@ -5949,7 +5973,7 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
/* can not grant current_role to current_role */
if (granted_role->user.str == current_role.str)
{
append_user(&wrong_users, thd->security_ctx->priv_role, "");
append_user(&wrong_users, &role_as_user->user, &empty_lex_str);
result= 1;
continue;
}
@ -5976,7 +6000,7 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
{
if (is_invalid_role_name(username.str))
{
append_user(&wrong_users, username.str, "");
append_user(&wrong_users, &username, &empty_lex_str);
result= 1;
continue;
}
@ -6002,7 +6026,7 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
false, create_new_user,
no_auto_create_user))
{
append_user(&wrong_users, username.str, hostname.str);
append_user(&wrong_users, &username, &hostname);
result= 1;
continue;
}
@ -6014,7 +6038,7 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
if (!grantee)
{
append_user(&wrong_users, username.str, hostname.str);
append_user(&wrong_users, &username, &hostname);
result= 1;
continue;
}
@ -6036,7 +6060,7 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
if (role_as_user &&
traverse_role_graph_down(role, 0, 0, 0) == ROLE_CYCLE_FOUND)
{
append_user(&wrong_users, username.str, "");
append_user(&wrong_users, &username, &empty_lex_str);
result= 1;
undo_add_role_user_mapping(grantee, role);
continue;
@ -6048,7 +6072,7 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
/* grant was already removed or never existed */
if (!hash_entry)
{
append_user(&wrong_users, username.str, hostname.str);
append_user(&wrong_users, &username, &hostname);
result= 1;
continue;
}
@ -6069,7 +6093,7 @@ bool mysql_grant_role(THD *thd, List <LEX_USER> &list, bool revoke)
thd->lex->with_admin_option,
hash_entry, revoke))
{
append_user(&wrong_users, username.str, "");
append_user(&wrong_users, &username, &empty_lex_str);
result= 1;
if (!revoke)
{
@ -9111,28 +9135,6 @@ end:
DBUG_RETURN(result);
}
static void append_user(String *str, LEX_USER *user)
{
if (str->length())
str->append(',');
str->append('\'');
str->append(user->user.str);
/* hostname part is not relevant for roles, it is always empty */
if (!user->is_role())
{
str->append(STRING_WITH_LEN("'@'"));
str->append(user->host.str);
}
str->append('\'');
}
static void append_str(String *str, const char *s, size_t l)
{
if (str->length())
str->append(',');
str->append(s, l);
}
/*
Create a list of users.

2
sql/sql_string.h
View File

@ -359,7 +359,7 @@ public:
}
bool append(const String &s);
bool append(const char *s);
bool append(LEX_STRING *ls)
bool append(const LEX_STRING *ls)
{
return append(ls->str, ls->length);
}