permissions

问题 I have an Android app which I want to use to set the APN settings. This requires the android.permission.WRITE_APN_SETTINGS permission, which is only granted to System apps or apps signed with the same private key as the OS itself. I'm only going to be using this on an emulator (or maybe a rooted device), so being able to actually deploy it to devices outside of my control isn't a concern. I'm building against and pushing to API 19. Despite pushing my APK to the /system/app/ directory and

问题 I am trying to learn about Java's permission model. I tried this sample code: public static void main(String[] args) { File file = new File("/etc/passwd"); try (BufferedReader reader = new BufferedReader(new FileReader(file));) { reader.lines().forEach(s -> System.out.println(s)); } catch (IOException e) { e.printStackTrace(); } FilePermission perm = new FilePermission("/etc/passwd", "read"); AccessController.checkPermission(perm); // throws Exception } This prints the contents of /etc/passwd

问题 I have a small script that create a directory for a user who registers an account on my site. This director is used to store images in that they upload. When I use mkdir() with permissions of 0777, the directory is created under the users name, but the permissions stay as 0755. I have tried a few different ways to do this, as follows; $path = path/to/directory/and/filename $old = umask(0); mkdir($path,0777); umask($old); also; $path = path/to/directory/and/filename/ mkdir($path, 0777, true);

问题 I'm new to MVC and I would like to get suggestions on how to best handle action based permissions in my application. I currently have some global permissions being checked at the controller level which work fine for rendering views the current user has access to, etc. However, once the view has been rendered, I want to make decisions such as 'enable DELETE button, ONLY IF user has delete permissions for the item currently selected' At that point, those permissions are no longer Global but

问题 I am struggling to comprehend how default schema privileges work in Postgres. To me, they are something that supposed to ease administration load by issuing permissions automatically, but I found them bit unusable. I discovered several things that are not at all obvious from documentation. I want several users to be able to create and modify objects in schema. I create a role who gonna be the owner and grant this role to multiple (in general) users: create schema my_schema; create role my

问题 I tried other solutions around here but no matter what I do the same permissions are asked during install of my app. I tried removing a bunch of the "plugins" phonegap uses, namely: (from the config.xml) <gap:plugin name="org.apache.cordova.battery-status"/> <gap:plugin name="org.apache.cordova.camera"/> <gap:plugin name="org.apache.cordova.media-capture"/> <gap:plugin name="org.apache.cordova.contacts"/> <gap:plugin name="org.apache.cordova.geolocation"/> <gap:plugin name="org.apache.cordova

问题 As we know, Android OS has some restrictions to operate device hardwares programmetically, like it shows intent to user which requires YES for return true to the specific intent, i-e: Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, 1); I want to hide this intent from user, and want to return true, as if user click YES, is there any way to code like this ? I am not asking about turn ON bluetooth without permission, like(

问题 I would like to use paperclip to upload files. With the basic out of the box settings, I was able to get the file uploaded to the default directory (something in public/systems...) However when I tried changing the url or path (or both): class Cvit < ActiveRecord::Base has_attached_file :fileup, :path => ":rails_root/public/data/01_fasta" end I lose permission to the 01_fasta directory, after doing a chmod 777 on it, I notice the file is there but its named something like, stream20110706

问题 When I try to (re)publish my clickonce app, I am getting this: Failed to copy file 'E:*path*\default.htm' to '\ path \default.htm'. Unable to add 'default.htm' to the Web site. The file 'default.htm' already exists in this Web site. There are three files with the same error message - default.htm, setup.exe and my app's .application file. What's going on? I've published this before, many times - although it's been a few months since the last publish. 回答1: You might wanna post this on UserVoice

问题 I am attempting to install taps from my Heroku app folder. When I type "gem install taps," I get the following error: ERROR: While executing gem ... (Errno::EACCES) Permission denied - /Users/jacob/.rvm/gems/ruby-1.9.3-p194/gems/taps-0.3.24/bin/taps I attempted to remove the taps-0.3.24 folder using rm -r and got this question: override rwxr-xr-x root/staff for /Users/jacob/.rvm/gems/ruby-1.9.3-p194/gems/taps-0.3.24//bin/schema? Upon typing yes, it tells me permission denied. Here is the