Plex-FAWE/src/main/java/com/sk89q/bukkit/migration/FlatFilePermissionsResolver.java

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// $Id$
/*
* WorldEdit
* Copyright (C) 2010 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.bukkit.migration;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.HashMap;
import org.bukkit.Server;
import org.bukkit.util.config.Configuration;
public class FlatFilePermissionsResolver implements PermissionsResolver {
private Map<String,Set<String>> userPermissionsCache;
private Set<String> defaultPermissionsCache;
private Map<String,Set<String>> userGroups;
protected File groupFile;
protected File userFile;
public static PermissionsResolver factory(Server server, Configuration config){
File groups = new File("perms_groups.txt");
File users = new File("perms_users.txt");
if(!groups.exists() || !users.exists()){
return null;
}
return new FlatFilePermissionsResolver(groups, users);
}
public FlatFilePermissionsResolver(){
this(new File("perms_groups.txt"), new File("perms_users.txt"));
}
public FlatFilePermissionsResolver(File groupFile, File userFile) {
this.groupFile = groupFile;
this.userFile = userFile;
}
@Deprecated
public static boolean filesExists() {
return (new File("perms_groups.txt")).exists() && (new File("perms_users.txt")).exists();
}
public Map<String,Set<String>> loadGroupPermissions() {
Map<String,Set<String>> userGroupPermissions = new HashMap<String,Set<String>>();
FileReader input = null;
try {
input = new FileReader(this.groupFile);
BufferedReader buff = new BufferedReader(input);
String line;
while ((line = buff.readLine()) != null) {
line = line.trim();
// Blank line
if (line.length() == 0) {
continue;
} else if (line.charAt(0) == ';' || line.charAt(0) == '#') {
continue;
}
String[] parts = line.split(":");
String key = parts[0];
if (parts.length > 1) {
String[] perms = parts[1].split(",");
Set<String> groupPerms = new HashSet<String>(Arrays.asList(perms));
userGroupPermissions.put(key, groupPerms);
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (input != null) {
input.close();
}
} catch (IOException e2) {
}
}
return userGroupPermissions;
}
public void load() {
userGroups = new HashMap<String,Set<String>>();
userPermissionsCache = new HashMap<String,Set<String>>();
defaultPermissionsCache = new HashSet<String>();
Map<String,Set<String>> userGroupPermissions = loadGroupPermissions();
if (userGroupPermissions.containsKey("default")) {
defaultPermissionsCache = userGroupPermissions.get("default");
}
FileReader input = null;
try {
input = new FileReader(this.userFile);
BufferedReader buff = new BufferedReader(input);
String line;
while ((line = buff.readLine()) != null) {
Set<String> permsCache = new HashSet<String>();
line = line.trim();
// Blank line
if (line.length() == 0) {
continue;
} else if (line.charAt(0) == ';' || line.charAt(0) == '#') {
continue;
}
String[] parts = line.split(":");
String key = parts[0];
if (parts.length > 1) {
String[] groups = (parts[1] + ",default").split(",");
String[] perms = parts.length > 2 ? parts[2].split(",") : new String[0];
permsCache.addAll(Arrays.asList(perms));
for (String group : groups) {
Set<String> groupPerms = userGroupPermissions.get(group);
if (groupPerms != null) {
permsCache.addAll(groupPerms);
}
}
userPermissionsCache.put(key.toLowerCase(), permsCache);
userGroups.put(key.toLowerCase(), new HashSet<String>(Arrays.asList(groups)));
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (input != null) {
input.close();
}
} catch (IOException e2) {
}
}
}
public boolean hasPermission(String player, String permission) {
int dotPos = permission.lastIndexOf(".");
if (dotPos > -1) {
if (hasPermission(player, permission.substring(0, dotPos))) {
return true;
}
}
Set<String> perms = userPermissionsCache.get(player.toLowerCase());
if (perms == null) {
return defaultPermissionsCache.contains(permission)
|| defaultPermissionsCache.contains("*");
}
return perms.contains("*") || perms.contains(permission);
}
public boolean hasPermission(String worldName, String player, String permission) {
return hasPermission(player, "worlds." + worldName + "." + permission)
|| hasPermission(player, permission);
}
public boolean inGroup(String player, String group) {
Set<String> groups = userGroups.get(player.toLowerCase());
if (groups == null) {
return false;
}
return groups.contains(group);
}
public String[] getGroups(String player) {
Set<String> groups = userGroups.get(player.toLowerCase());
if (groups == null) {
return new String[0];
}
return groups.toArray(new String[groups.size()]);
}
public String getDetectionMessage() {
return "perms_groups.txt and perms_users.txt detected! Using flat file permissions.";
}
}