/*
 # STPrivilegedTask - NSTask-like wrapper around AuthorizationExecuteWithPrivileges
 # Copyright (C) 2009-2017 Sveinbjorn Thordarson <sveinbjorn@sveinbjorn.org>
 #
 # BSD License
 # 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 copyright holder nor that of any other
 #       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  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 <Cocoa/Cocoa.h>

#define STPrivilegedTaskDidTerminateNotification @"STPrivilegedTaskDidTerminateNotification"

// Defines error value for when AuthorizationExecuteWithPrivileges no longer exists
// Rather than defining a new enum, we just create a global constant
extern const OSStatus errAuthorizationFnNoLongerExists;

@interface STPrivilegedTask : NSObject

@property (copy) NSArray *arguments;
@property (copy) NSString *currentDirectoryPath;
@property (copy) NSString *launchPath;
@property (assign) BOOL freeAuthorizationWhenDone;

@property (readonly) NSFileHandle *outputFileHandle;
@property (readonly) BOOL isRunning;
@property (readonly) pid_t processIdentifier;
@property (readonly) int terminationStatus;
@property (readonly) AuthorizationRef authorization;

@property (copy) void (^terminationHandler)(STPrivilegedTask *);

+ (BOOL)authorizationFunctionAvailable;
    
- (instancetype)initWithLaunchPath:(NSString *)path;
- (instancetype)initWithLaunchPath:(NSString *)path arguments:(NSArray *)args;
- (instancetype)initWithLaunchPath:(NSString *)path arguments:(NSArray *)args currentDirectory:(NSString *)cwd;

+ (STPrivilegedTask *)launchedPrivilegedTaskWithLaunchPath:(NSString *)path;
+ (STPrivilegedTask *)launchedPrivilegedTaskWithLaunchPath:(NSString *)path arguments:(NSArray *)args;
+ (STPrivilegedTask *)launchedPrivilegedTaskWithLaunchPath:(NSString *)path arguments:(NSArray *)args currentDirectory:(NSString *)cwd;
+ (STPrivilegedTask *)launchedPrivilegedTaskWithLaunchPath:(NSString *)path arguments:(NSArray *)args currentDirectory:(NSString *)cwd authorization:(AuthorizationRef)authorization;

- (OSStatus)launch;
- (OSStatus)launchWithAuthorization:(AuthorizationRef)authorization;
- (void)terminate; // doesn't work
- (void)waitUntilExit;

@end