Brought in Keychain code originally written for Outpost.

Keychain/AQKeychainItem.h

@@ -0,0 +1,160 @@
+/*
+ * AQKeychainItem.h
+ * AQToolkit
+ * 
+ * Created by Jim Dovey on 27/03/2009.
+ * 
+ * Copyright (c) 2009 Jim Dovey
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of the project's author nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#import <Foundation/Foundation.h>
+#import <Security/SecItem.h>
+
+// Supported classes:
+//  - kSecClassGenericPassword
+//  - kSecClassInternetPassword
+
+/*
+ 
+ These are the default constants and their respective types,
+ available for the kSecClassGenericPassword Keychain Item class:
+ 
+ kSecAttrAccessGroup		-		CFStringRef
+ kSecAttrCreationDate       -       CFDateRef
+ kSecAttrModificationDate   -       CFDateRef
+ kSecAttrDescription        -       CFStringRef
+ kSecAttrComment            -       CFStringRef
+ kSecAttrCreator            -       CFNumberRef (OSType)
+ kSecAttrType               -       CFNumberRef (OSType)
+ kSecAttrLabel              -       CFStringRef
+ kSecAttrIsInvisible        -       CFBooleanRef
+ kSecAttrIsNegative         -       CFBooleanRef
+ kSecAttrAccount            -       CFStringRef		-- username value
+ kSecAttrService            -       CFStringRef		-- server URL string
+ kSecAttrGeneric            -       CFDataRef
+ 
+ ...and these are for the kSecClassInternetPassword class:
+ 
+ kSecAttrAccessGroup		-		CFStringRef		-- iPhone only
+ kSecAttrCreationDate		-		CFDateRef
+ kSecAttrModificationDate	-		CFDateRef
+ kSecAttrDescription		-		CFStringRef
+ kSecAttrComment			-		CFStringRef
+ kSecAttrCreator			-		CFNumberRef (OSType)
+ kSecAttrType				-		CFNumberRef (OSType)
+ kSecAttrLabel				-		CFStringRef
+ kSecAttrIsInvisible		-		CFBooleanRef
+ kSecAttrIsNegative			-		CFBooleanRef
+ kSecAttrAccount			-		CFStringRef		-- username value
+ kSecAttrSecurityDomain		-		CFStringRef		-- use server URL host string
+ kSecAttrServer				-		CFStringRef		-- server URL host string
+ kSecAttrProtocol			-		CFTypeRef		-- kSecAttrProtocolXXXXX
+ kSecAttrAuthenticationType	-		CFTypeRef		-- kSecAttrAuthenticationTypeXXXXX
+ kSecAttrPort				-		CFNumberRef		-- port number
+ kSecAttrPath				-		CFStringRef		-- path component of URL (leave empty for all)
+ 
+ ... and don't forget -- even though the docs don't mention this, you have to SET
+ kSecValueData to be the encrypted value (the password) that you want to store.
+ 
+*/
+
+// options to specify the type of data to return
+enum
+{
+    kAQKeychainReturnNone           = 0,
+    kAQKeychainReturnAttributes     = 1 << 0,
+    kAQKeychainReturnData           = 1 << 1,
+    kAQKeychainReturnRef            = 1 << 2,
+    kAQKeychainReturnPersistentRef  = 1 << 3,
+
+    kAQKeychainReturnAll            = 0xFFFFFFFF
+
+};
+typedef NSUInteger AQKeychainOptions;
+
+@interface AQKeychainItem : NSObject <NSCoding>
+{
+	NSMutableDictionary *	_keychainData;
+}
+
+@property (nonatomic, retain) NSMutableDictionary * keychainData;
+
+// primitives
+- (void) setObject: (id) object forKey: (id) key;
+- (id) objectForKey: (id) key;
+
+// helpers (which sit atop -setObject:forKey: and objectForKey:)
+// note that those things which are provided as CFTypeRef constants are declared as such here
+@property (nonatomic)		  CFTypeRef itemClass;
+#if TARGET_OS_IPHONE
+@property (nonatomic, retain) NSString * group;
+#endif
+@property (nonatomic, retain) NSString * label;
+@property (nonatomic, retain, getter=itemDescription, setter=setItemDescription:) NSString * description;
+@property (nonatomic, retain) NSString * comment;
+@property (nonatomic, retain) NSString * username;
+@property (nonatomic, retain) NSString * password;
+@property (nonatomic, retain) NSString * securityDomain;
+@property (nonatomic, retain) NSString * server;
+#if TARGET_OS_IPHONE
+@property (nonatomic)		  CFTypeRef protocol;		// on iPhone, uses CFTypeRef extern constants
+#else
+@property (nonatomic, assign) FourCharCode protocol;	// on Mac, uses enumerated OSType constants
+#endif
+@property (nonatomic)		  CFTypeRef authenticationType;
+@property (nonatomic)		  UInt16 port;
+@property (nonatomic, retain) NSString * path;
+@property (nonatomic, retain) NSData * generic;
+
+@property (nonatomic, copy) NSData * valueData;
+@property (nonatomic, readonly) CFTypeRef keychainItemRef;
+
+// clear the protected value when you're done with it
+- (void) clearValueData;
+
+// these functions will actually fetch/store the item
+
+// This will update the keychainData dictionary using the returned data
+- (BOOL) queryKeychain;
+- (BOOL) queryKeychainWithOptions: (AQKeychainOptions) options;
+
+// This will create or update the keychain item
+- (BOOL) storeKeychain;
+
+// This will delete the matching keychain item
+- (BOOL) deleteKeychain;
+
++ (NSArray *) findMatchingItems: (AQKeychainItem *) query;
++ (NSArray *) findMatchingItems: (AQKeychainItem *) query withOptions: (AQKeychainOptions) options;
+
+@end