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//
// KeyChain.m
// Vienna
//
// Created by Steve on Sat Jul 9 2005.
// Copyright (c) 2004-2005 Steve Palmer. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#import "KeyChain.h"
#import <Security/SecKeychain.h>
#import <Security/SecKeychainItem.h>
@implementation KeyChain
/* getPasswordFromKeychain
* Retrieves an internet password from the Keychain.
*/
+(NSString *)getPasswordFromKeychain:(NSString *)username url:(NSString *)url
{
NSURL * secureUrl = [NSURL URLWithString:url];
const char * cServiceName = [[secureUrl host] UTF8String];
const char * cUsername = [username UTF8String];
int portNumber = [secureUrl port] ? [[secureUrl port] intValue] : 80;
SecProtocolType protocolType = ([[secureUrl scheme] caseInsensitiveCompare:@"https"] == NSOrderedSame) ? kSecProtocolTypeHTTPS : kSecProtocolTypeHTTP;
NSString * thePassword;
if (!cServiceName || !cUsername)
thePassword = @"";
else
{
const char * cPath = "";
UInt32 passwordLength;
void * passwordPtr;
OSStatus status;
status = SecKeychainFindInternetPassword(NULL,
strlen(cServiceName),
cServiceName,
0,
NULL,
strlen(cUsername),
cUsername,
strlen(cPath),
cPath,
portNumber,
protocolType,
kSecAuthenticationTypeDefault,
&passwordLength,
&passwordPtr,
NULL);
if (status != noErr)
thePassword = @"";
else
{
thePassword = [[[NSString alloc] initWithBytes:passwordPtr length:passwordLength encoding:NSUTF8StringEncoding] autorelease];
SecKeychainItemFreeContent(NULL, passwordPtr);
}
}
return thePassword;
}
/* setPasswordInKeychain
* Updates an internet password for the service.
*/
+(void)setPasswordInKeychain:(NSString *)password username:(NSString *)username url:(NSString *)url
{
NSURL * secureUrl = [NSURL URLWithString:url];
const char * cServiceName = [[secureUrl host] UTF8String];
const char * cUsername = [username UTF8String];
const char * cPath = "";
int portNumber = [secureUrl port] ? [[secureUrl port] intValue] : 80;
SecProtocolType protocolType = ([[secureUrl scheme] caseInsensitiveCompare:@"https"] == NSOrderedSame) ? kSecProtocolTypeHTTPS : kSecProtocolTypeHTTP;
const char * cPassword = [password UTF8String];
SecKeychainItemRef itemRef;
OSStatus status;
if (!cServiceName || !cUsername || !cPassword)
return;
status = SecKeychainFindInternetPassword(NULL,
strlen(cServiceName),
cServiceName,
0,
NULL,
strlen(cUsername),
cUsername,
strlen(cPath),
cPath,
portNumber,
protocolType,
kSecAuthenticationTypeDefault,
NULL,
NULL,
&itemRef);
if (status == noErr)
SecKeychainItemDelete(itemRef);
SecKeychainAddInternetPassword(NULL,
strlen(cServiceName),
cServiceName,
0,
NULL,
strlen(cUsername),
cUsername,
strlen(cPath),
cPath,
portNumber,
protocolType,
kSecAuthenticationTypeDefault,
strlen(cPassword),
cPassword,
NULL);
}
@end
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