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//
// PrivilegeDataSource.m
// MySQL Administrator
//
// Created by Alfredo Kojima on Thu Jul 08 2004.
// Copyright (c) 2004 MySQL AB. All rights reserved.
//
#import "PrivilegeDataSource.h"
static BOOL has_priv(MYX_USER_OBJECT_PRIVILEGES *privs, const char *priv,
PrivilegeType type)
{
unsigned int i;
for (i= 0; i < privs->user_privileges_num; i++)
{
char *end, *begin;
bool table_column_priv= NO;
begin= (char*)privs->user_privileges[i];
if (type == PTable)
{
if(g_str_has_prefix(begin, "Table_priv_"))
{
begin+= sizeof("Table_priv_")-1;
}
else if(g_str_has_prefix(priv, "Column "))
{
begin+= sizeof("Column_priv_")-1;
table_column_priv= YES;
}
end= strchr(begin, '=');
}
else if (type == PColumn)
{
begin+= sizeof("Column_priv_")-1;
end= strchr(begin, '=');
}
else if (type == PRoutine)
{
begin+= sizeof("Proc_priv_")-1;
end= strchr(begin, '=');
}
else
end= strstr(begin, "_priv=");
if (end)
{
if (strncasecmp(begin, priv, end-begin)==0 && (int)strlen(priv) == end-begin)
{
end= strchr(end, '=');
return *(end+1)=='Y';
}
else if (table_column_priv && strncasecmp(begin, priv+sizeof("Column ")-1, end-begin)==0 && (int)strlen(priv+sizeof("Column ")-1) == end-begin)
{
end= strchr(end, '=');
return *(end+1)=='Y';
}
}
}
return NO;
}
static void set_priv(MYX_USER_OBJECT_PRIVILEGES *privs, const char *priv,
BOOL flag, PrivilegeType type)
{
unsigned int i;
for (i= 0; i < privs->user_privileges_num; i++)
{
char *end, *begin;
bool table_column_priv= NO;
begin= (char*)privs->user_privileges[i];
if (type == PTable)
{
if(g_str_has_prefix(begin, "Table_priv_"))
{
begin+= sizeof("Table_priv_")-1;
}
else
{
begin+= sizeof("Column_priv_")-1;
table_column_priv= YES;
}
end= strchr(begin, '=');
}
else if (type == PColumn)
{
begin+= sizeof("Column_priv_")-1;
end= strchr(begin, '=');
}
else if (type == PRoutine)
{
begin+= sizeof("Routine_priv_")-1;
end= strchr(begin, '=');
}
else
end= strstr(begin, "_priv=");
if (end)
{
if (strncasecmp(begin, priv, end-begin)==0 && (int)strlen(priv) == end-begin)
{
char *eq= strchr(end, '=');
*(eq+1)= flag ? 'Y' : 'N';
}
else if (table_column_priv && (strncasecmp(begin, priv+sizeof("Column ")-1, end-begin)==0 && (int)strlen(priv+sizeof("Column ")-1) == end-begin))
{
char *eq= strchr(end, '=');
*(eq+1)= flag ? 'Y' : 'N';
}
}
}
}
/*
static BOOL compare_privs(MYX_USER_OBJECT_PRIVILEGES *a, MYX_USER_OBJECT_PRIVILEGES *b)
{
unsigned int i;
g_return_val_if_fail(strcmp(a->host, b->host)==0, NO);
g_return_val_if_fail(strcmp(a->object_name, b->object_name)==0, NO);
g_return_val_if_fail(a->user_privileges_num==b->user_privileges_num, NO);
for (i= 0; i < a->user_privileges_num; i++)
{
if (strcmp(a->user_privileges[i], b->user_privileges[i])==0)
return NO;
}
return YES;
}
*/
@implementation PrivilegeDataSource
- (void)dealloc
{
[_allPrivileges release];
[_assignedPrivileges release];
[_sourceTable release];
[super dealloc];
}
- (id)initWithPrivileges: (NSArray*)privileges
sourceTable: (NSTableView*)table
type: (PrivilegeType)type
{
self= [super init];
if (self)
{
_assignedPrivileges= [[NSMutableArray alloc] init];
_allPrivileges= [privileges retain];
_sourceTable= [table retain];
_privileges= NULL;
_type= type;
}
return self;
}
- (void)setPrivileges: (MYX_USER_OBJECT_PRIVILEGES*)objPrivileges
{
int i, c= [_allPrivileges count];
_privileges= objPrivileges;
[_assignedPrivileges removeAllObjects];
if (_privileges)
{
for (i= 0; i < c; i++)
{
NSString *p= [_allPrivileges objectAtIndex:i];
if (has_priv(_privileges, [p UTF8String], _type))
[_assignedPrivileges addObject: p];
}
}
}
- (void)revoke: (NSString*)priv
{
NSAssert(_privileges, @"Privilege datasource is not initialized with user's privilege structure");
set_priv(_privileges, [priv UTF8String], NO, _type);
[_assignedPrivileges removeObjectIdenticalTo: priv];
if ([_assignedPrivileges indexOfObjectIdenticalTo: priv]!=NSNotFound)
NSLog(@"COULDNT REVOKE PRIVILEGE");
}
- (void)grant: (NSString*)priv
{
NSAssert(_privileges, @"Privilege datasource is not initialized with user's privilege structure");
NSAssert([_assignedPrivileges indexOfObjectIdenticalTo:priv]==NSNotFound,@"Granting duplicated privlege");
set_priv(_privileges, [priv UTF8String], YES, _type);
[_assignedPrivileges addObject: priv];
}
- (int)numberOfRowsInTableView:(NSTableView *)aTableView
{
if (_sourceTable == aTableView)
return [_allPrivileges count] - [_assignedPrivileges count];
else
return [_assignedPrivileges count];
}
- (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn
row:(int)rowIndex
{
if (_sourceTable == aTableView)
{
int c= [_allPrivileges count];
int j;
int d= rowIndex;
for (j= 0; j < c; j++)
{
NSString *s= [_allPrivileges objectAtIndex:j];
if ([_assignedPrivileges indexOfObjectIdenticalTo:s]==NSNotFound)
{
if (d == 0)
{
if (!aTableColumn || [[aTableColumn identifier] isEqualToString:@"privilege"])
return s;
else
return [NSString stringWithFormat:@"Grants the %@ privilege to the user.",s];
}
--d;
}
}
}
else if (_privileges)
{
return [_assignedPrivileges objectAtIndex: rowIndex];
}
return @"?";
}
@end
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