如何使用 NSTask 授予权限 - Objective-c

Question

我基本上需要执行“sudo”，但是，我需要向我的 NSTask 代码授予这种权限。这可能吗？

谢谢， 以利亚

Answer 1

如果您正在寻找更轻量级的解决方案，我编写了这个通用实现，它应该可以实现您想要的效果：

- (BOOL) runProcessAsAdministrator:(NSString*)scriptPath
                     withArguments:(NSArray *)arguments
                            output:(NSString **)output
                  errorDescription:(NSString **)errorDescription {

    NSString * allArgs = [arguments componentsJoinedByString:@" "];
    NSString * fullScript = [NSString stringWithFormat:@"'%@' %@", scriptPath, allArgs];

    NSDictionary *errorInfo = [NSDictionary new];
    NSString *script =  [NSString stringWithFormat:@"do shell script \"%@\" with administrator privileges", fullScript];

    NSAppleScript *appleScript = [[NSAppleScript new] initWithSource:script];
    NSAppleEventDescriptor * eventResult = [appleScript executeAndReturnError:&errorInfo];

    // Check errorInfo
    if (! eventResult)
    {
        // Describe common errors
        *errorDescription = nil;
        if ([errorInfo valueForKey:NSAppleScriptErrorNumber])
        {
            NSNumber * errorNumber = (NSNumber *)[errorInfo valueForKey:NSAppleScriptErrorNumber];
            if ([errorNumber intValue] == -128)
                *errorDescription = @"The administrator password is required to do this.";
        }

        // Set error message from provided message
        if (*errorDescription == nil)
        {
            if ([errorInfo valueForKey:NSAppleScriptErrorMessage])
                *errorDescription =  (NSString *)[errorInfo valueForKey:NSAppleScriptErrorMessage];
        }

        return NO;
    }
    else
    {
        // Set output to the AppleScript's output
        *output = [eventResult stringValue];

        return YES;
    }
}

使用示例：

    NSString * output = nil;
    NSString * processErrorDescription = nil;
    BOOL success = [self runProcessAsAdministrator:@"/usr/bin/id"
                    withArguments:[NSArray arrayWithObjects:@"-un", nil]
                           output:&output
                            errorDescription:&processErrorDescription];


    if (!success) // Process failed to run
    {
         // ...look at errorDescription 
    }
    else
    {
         // ...process output
    }

它有点老套，但恕我直言，这是一个令人满意的解决方案。归功于这个问题的发现。

Answer 2

请看这里：

• http://www.sveinbjorn.org/STPrivilegedTask
• http://www.sheepsystems.com/sourceCode/authTasksCocoa.html

HTH :-)

Answer 3

文章“与特权工具”

另请参阅：http://osx.hyperjeff.net /Reference/CocoaArticles?cat=29