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|
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package org.anjocaido.groupmanager.permissions;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.anjocaido.groupmanager.GroupManager;
import org.anjocaido.groupmanager.data.Group;
import org.anjocaido.groupmanager.data.User;
import org.anjocaido.groupmanager.dataholder.WorldDataHolder;
import org.anjocaido.groupmanager.utils.PermissionCheckResult;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
/**
* Everything here maintains the model created by Nijikokun
*
* But implemented to use GroupManager system. Which provides instant changes,
* without file access.
*
* It holds permissions only for one single world.
*
* @author gabrielcouto, ElgarL
*/
public class AnjoPermissionsHandler extends PermissionsReaderInterface {
WorldDataHolder ph = null;
/**
* It needs a WorldDataHolder to work with.
*
* @param holder
*/
public AnjoPermissionsHandler(WorldDataHolder holder) {
ph = holder;
}
/**
* A short name method, for permission method.
*
* @param player
* @param permission
* @return true if the player has the permission
*/
@Override
public boolean has(Player player, String permission) {
return permission(player, permission);
}
/**
* Checks if a player can use that permission node.
*
* @param player
* @param permission
* @return true if the player has the permission
*/
@Override
public boolean permission(Player player, String permission) {
return checkUserPermission(ph.getUser(player.getName()).updatePlayer(player), permission);
}
/**
* Checks if a player can use that permission node.
*
* @param playerName
* @param permission
* @return true if the player has the permission
*/
public boolean permission(String playerName, String permission) {
return checkUserPermission(ph.getUser(playerName), permission);
}
/**
* Returns the name of the group of that player name.
*
* @param userName
* @return String of players group name.
*/
@Override
public String getGroup(String userName) {
return ph.getUser(userName).getGroup().getName();
}
/**
* Returns All permissions (including inheritance and sub groups) for the
* player, including child nodes from Bukkit.
*
* @param userName
* @return List<String> of all players permissions.
*/
@Override
public List<String> getAllPlayersPermissions(String userName) {
List<String> perms = new ArrayList<String>();
perms.addAll(getAllPlayersPermissions(userName, true));
return perms;
}
/**
* Returns All permissions (including inheritance and sub groups) for the
* player. With or without Bukkit child nodes.
*
* @param userName
* @return Set<String> of all players permissions.
*/
@Override
public Set<String> getAllPlayersPermissions(String userName, Boolean includeChildren) {
Set<String> playerPermArray = new LinkedHashSet<String>();
Set<String> overrides = new LinkedHashSet<String>();
// Add the players own permissions.
playerPermArray.addAll(populatePerms(ph.getUser(userName).getPermissionList(), includeChildren));
ArrayList<String> alreadyProcessed = new ArrayList<String>();
// fetch all group permissions
for (String group : getGroups(userName)) {
// Don't process a group more than once.
if (!alreadyProcessed.contains(group)) {
alreadyProcessed.add(group);
Set<String> groupPermArray = new LinkedHashSet<String>();
if (group.startsWith("g:") && GroupManager.getGlobalGroups().hasGroup(group)) {
// GlobalGroups
groupPermArray = populatePerms(GroupManager.getGlobalGroups().getGroupsPermissions(group), includeChildren);
} else {
// World Groups
groupPermArray = populatePerms(ph.getGroup(group).getPermissionList(), includeChildren);
}
// Add all group permissions, unless negated by earlier permissions.
for (String perm : groupPermArray) {
boolean negated = (perm.startsWith("-"));
// Overridden (Exception) permission defeats negation.
if (perm.startsWith("+")) {
overrides.add(perm.substring(1));
continue;
}
// Perm doesn't already exists and there is no negation for it
// or It's a negated perm where a normal perm doesn't exists (don't allow inheritance to negate higher perms)
if ((!negated && !playerPermArray.contains(perm) && !wildcardNegation(playerPermArray, perm)) || (negated && !playerPermArray.contains(perm.substring(1)) && !wildcardNegation(playerPermArray, perm.substring(1))))
playerPermArray.add(perm);
}
}
}
// Process overridden permissions
Iterator<String> itr = overrides.iterator();
while (itr.hasNext()) {
String node = itr.next();
if (playerPermArray.contains("-" + node)) {
playerPermArray.remove("-" + node);
}
playerPermArray.add(node);
}
// Collections.sort(playerPermArray, StringPermissionComparator.getInstance());
return playerPermArray;
}
/**
* Is there a direct or wildcard negation in the list which covers this permission node.
*
* @param playerPermArray
* @param node
* @return
*/
private boolean wildcardNegation(Set<String> playerPermArray, String node) {
/*
* Check for a negated parent with a wildcard or negated permission
*/
if (playerPermArray.contains("-" + node))
return true;
final String[] parts = node.split("\\.");
final StringBuilder builder = new StringBuilder(node.length());
for (String part : parts) {
builder.append('*');
if (playerPermArray.contains("-" + builder.toString())) {
GroupManager.logger.fine("Wildcard Negation found for " + node);
return true;
}
builder.deleteCharAt(builder.length() - 1);
builder.append(part).append('.');
}
/*
* No negated parent found so return false.
*/
GroupManager.logger.fine("No Negation found for " + node);
return false;
}
private Set<String> populatePerms(List<String> permsList, boolean includeChildren) {
// Create a new array so it's modifiable.
List<String> perms = new ArrayList<String>(permsList);
Set<String> permArray = new LinkedHashSet<String>();
Boolean allPerms = false;
// Allow * node to populate ALL permissions to Bukkit.
if (perms.contains("*")) {
permArray.addAll(GroupManager.BukkitPermissions.getAllRegisteredPermissions(includeChildren));
allPerms = true;
perms.remove("*");
// Remove the no offline perms node as this should not be given.
perms.remove("groupmanager.noofflineperms");
}
for (String perm : perms) {
/**
* all permission sets are passed here pre-sorted, alphabetically.
* This means negated nodes will be processed before all permissions
* other than *.
*/
boolean negated = perm.startsWith("-");
if (!permArray.contains(perm)) {
permArray.add(perm);
if ((negated) && (permArray.contains(perm.substring(1))))
permArray.remove(perm.substring(1));
/**
* Process child nodes if required,
* or this is a negated node AND we used * to include all
* permissions,
* in which case we need to remove all children of that node.
*/
if ((includeChildren) || (negated && allPerms)) {
Map<String, Boolean> children = GroupManager.BukkitPermissions.getAllChildren((negated ? perm.substring(1) : perm), new LinkedHashSet<String>());
if (children != null) {
if (negated)
if (allPerms) {
// Remove children of negated nodes
for (String child : children.keySet())
if (children.get(child))
if (permArray.contains(child))
permArray.remove(child);
} else {
// Add child nodes
for (String child : children.keySet())
if (children.get(child))
if ((!permArray.contains(child)) && (!permArray.contains("-" + child)))
permArray.add(child);
}
}
}
}
}
return permArray;
}
/**
* Verify if player is in such group. It will check it's groups inheritance.
*
* So if you have a group Admin > Moderator
*
* And verify the player 'MyAdmin', which is Admin, it will return true for
* both Admin or Moderator groups.
*
* If you have a player 'MyModerator', which is Moderator, it will give
* false if you pass Admin in group parameter.
*
* @param name
* @param group
* @return true if in group (with inheritance)
*/
@Override
public boolean inGroup(String name, String group) {
if (hasGroupInInheritance(ph.getUser(name).getGroup(), group)) {
return true;
}
for (Group subGroup : ph.getUser(name).subGroupListCopy()) {
if (hasGroupInInheritance(subGroup, group)) {
return true;
}
}
return false;
}
/**
* Gets the appropriate prefix for the user. This method is a utility method
* for chat plugins to get the user's prefix without having to look at every
* one of the user's ancestors. Returns an empty string if user has no
* parent groups.
*
* @param user
* Player's name
* @return Player's prefix
*/
@Override
public String getUserPrefix(String user) {
String prefix = ph.getUser(user).getVariables().getVarString("prefix");
if (prefix.length() != 0) {
return prefix;
}
return getGroupPrefix(getGroup(user));
}
/**
* Gets the appropriate prefix for the user. This method is a utility method
* for chat plugins to get the user's prefix without having to look at every
* one of the user's ancestors. Returns an empty string if user has no
* parent groups.
*
* @param user
* Player's name
* @return Player's prefix
*/
@Override
public String getUserSuffix(String user) {
String suffix = ph.getUser(user).getVariables().getVarString("suffix");
if (suffix.length() != 0) {
return suffix;
}
return getGroupSuffix(getGroup(user));
}
/**
* Gets name of the primary group of the user. Returns the name of the
* default group if user has no parent groups, or "Default" if there is no
* default group for that world.
*
* @param user
* Player's name
* @return Name of player's primary group
*/
public String getPrimaryGroup(String user) {
return getGroup(user);
}
/**
* Check if user can build. Checks inheritance and subgroups.
*
* @param userName
* Player's name
* @return true if the user can build
*/
public boolean canUserBuild(String userName) {
return getPermissionBoolean(userName, "build");
}
/**
* Returns the String prefix for the given group
*
* @param groupName
* @return empty string if found none.
*/
@Override
public String getGroupPrefix(String groupName) {
Group g = ph.getGroup(groupName);
if (g == null) {
return "";
}
return g.getVariables().getVarString("prefix");
}
/**
* Return the suffix for the given group name
*
* @param groupName
* @return empty string if not found.
*/
@Override
public String getGroupSuffix(String groupName) {
Group g = ph.getGroup(groupName);
if (g == null) {
return "";
}
return g.getVariables().getVarString("suffix");
}
/**
* Checks the specified group for the Info Build node. Does NOT check
* inheritance
*
* @param groupName
* @return true if can build
*/
@Override
public boolean canGroupBuild(String groupName) {
Group g = ph.getGroup(groupName);
if (g == null) {
return false;
}
return g.getVariables().getVarBoolean("build");
}
/**
* It returns a string variable value, set in the INFO node of the group. It
* will harvest inheritance for value.
*
* @param groupName
* @param variable
* @return null if no group with that variable is found.
*/
@Override
public String getGroupPermissionString(String groupName, String variable) {
Group start = ph.getGroup(groupName);
if (start == null) {
return null;
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
return null;
}
return result.getVariables().getVarString(variable);
}
/**
* It returns a Integer variable value It will harvest inheritance for
* value.
*
* @param groupName
* @param variable
* @return -1 if none found or not parseable.
*/
@Override
public int getGroupPermissionInteger(String groupName, String variable) {
Group start = ph.getGroup(groupName);
if (start == null) {
return -1;
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
return -1;
}
return result.getVariables().getVarInteger(variable);
}
/**
* Returns a boolean for given variable in INFO node. It will harvest
* inheritance for value.
*
* @param group
* @param variable
* @return false if not found/not parseable.
*/
@Override
public boolean getGroupPermissionBoolean(String group, String variable) {
Group start = ph.getGroup(group);
if (start == null) {
return false;
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
return false;
}
return result.getVariables().getVarBoolean(variable);
}
/**
* Returns a double value for the given variable name in INFO node. It will
* harvest inheritance for value.
*
* @param group
* @param variable
* @return -1 if not found / not parseable.
*/
@Override
public double getGroupPermissionDouble(String group, String variable) {
Group start = ph.getGroup(group);
if (start == null) {
return -1;
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
return -1;
}
return result.getVariables().getVarDouble(variable);
}
/**
* Returns the variable value of the user, in INFO node.
*
* @param user
* @param variable
* @return empty string if not found
*/
@Override
public String getUserPermissionString(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return "";
}
return auser.getVariables().getVarString(variable);
}
/**
* Returns the variable value of the user, in INFO node.
*
* @param user
* @param variable
* @return -1 if not found
*/
@Override
public int getUserPermissionInteger(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return -1;
}
return auser.getVariables().getVarInteger(variable);
}
/**
* Returns the variable value of the user, in INFO node.
*
* @param user
* @param variable
* @return boolean value
*/
@Override
public boolean getUserPermissionBoolean(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return false;
}
return auser.getVariables().getVarBoolean(variable);
}
/**
* Returns the variable value of the user, in INFO node.
*
* @param user
* @param variable
* @return -1 if not found
*/
@Override
public double getUserPermissionDouble(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return -1;
}
return auser.getVariables().getVarDouble(variable);
}
/**
* Returns the variable value of the user, in INFO node. If not found, it
* will search for his Group variables. It will harvest the inheritance and
* subgroups.
*
* @param user
* @param variable
* @return empty string if not found
*/
@Override
public String getPermissionString(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return "";
}
if (auser.getVariables().hasVar(variable)) {
return auser.getVariables().getVarString(variable);
}
Group start = auser.getGroup();
if (start == null) {
return "";
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
// Check sub groups
if (!auser.isSubGroupsEmpty())
for (Group subGroup : auser.subGroupListCopy()) {
result = nextGroupWithVariable(subGroup, variable);
// Found value?
if (result != null)
continue;
}
if (result == null)
return "";
}
return result.getVariables().getVarString(variable);
// return getUserPermissionString(user, variable);
}
/**
* Returns the variable value of the user, in INFO node. If not found, it
* will search for his Group variables. It will harvest the inheritance and
* subgroups.
*
* @param user
* @param variable
* @return -1 if not found
*/
@Override
public int getPermissionInteger(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return -1;
}
if (auser.getVariables().hasVar(variable)) {
return auser.getVariables().getVarInteger(variable);
}
Group start = auser.getGroup();
if (start == null) {
return -1;
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
// Check sub groups
if (!auser.isSubGroupsEmpty())
for (Group subGroup : auser.subGroupListCopy()) {
result = nextGroupWithVariable(subGroup, variable);
// Found value?
if (result != null)
continue;
}
if (result == null)
return -1;
}
return result.getVariables().getVarInteger(variable);
// return getUserPermissionInteger(string, string1);
}
/**
* Returns the variable value of the user, in INFO node. If not found, it
* will search for his Group variables. It will harvest the inheritance and
* subgroups.
*
* @param user
* @param variable
* @return false if not found or not parseable to true.
*/
@Override
public boolean getPermissionBoolean(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return false;
}
if (auser.getVariables().hasVar(variable)) {
return auser.getVariables().getVarBoolean(variable);
}
Group start = auser.getGroup();
if (start == null) {
return false;
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
// Check sub groups
if (!auser.isSubGroupsEmpty())
for (Group subGroup : auser.subGroupListCopy()) {
result = nextGroupWithVariable(subGroup, variable);
// Found value?
if (result != null)
continue;
}
if (result == null)
return false;
}
return result.getVariables().getVarBoolean(variable);
// return getUserPermissionBoolean(user, string1);
}
/**
* Returns the variable value of the user, in INFO node. If not found, it
* will search for his Group variables. It will harvest the inheritance and
* subgroups.
*
* @param user
* @param variable
* @return -1 if not found.
*/
@Override
public double getPermissionDouble(String user, String variable) {
User auser = ph.getUser(user);
if (auser == null) {
return -1.0D;
}
if (auser.getVariables().hasVar(variable)) {
return auser.getVariables().getVarDouble(variable);
}
Group start = auser.getGroup();
if (start == null) {
return -1.0D;
}
Group result = nextGroupWithVariable(start, variable);
if (result == null) {
// Check sub groups
if (!auser.isSubGroupsEmpty())
for (Group subGroup : auser.subGroupListCopy()) {
result = nextGroupWithVariable(subGroup, variable);
// Found value?
if (result != null)
continue;
}
if (result == null)
return -1.0D;
}
return result.getVariables().getVarDouble(variable);
// return getUserPermissionDouble(string, string1);
}
/**
* Does not include User's group permission
*
* @param user
* @param permission
* @return PermissionCheckResult
*/
public PermissionCheckResult checkUserOnlyPermission(User user, String permission) {
user.sortPermissions();
PermissionCheckResult result = new PermissionCheckResult();
result.askedPermission = permission;
result.owner = user;
for (String access : user.getPermissionList()) {
result.resultType = comparePermissionString(access, permission);
if (result.resultType != PermissionCheckResult.Type.NOTFOUND) {
result.accessLevel = access;
return result;
}
}
result.resultType = PermissionCheckResult.Type.NOTFOUND;
return result;
}
/**
* Returns the node responsible for that permission. Does not include User's
* group permission.
*
* @param group
* @param permission
* @return the node if permission is found. if not found, return null
*/
public PermissionCheckResult checkGroupOnlyPermission(Group group, String permission) {
group.sortPermissions();
PermissionCheckResult result = new PermissionCheckResult();
result.owner = group;
result.askedPermission = permission;
for (String access : group.getPermissionList()) {
result.resultType = comparePermissionString(access, permission);
if (result.resultType != PermissionCheckResult.Type.NOTFOUND) {
result.accessLevel = access;
return result;
}
}
result.resultType = PermissionCheckResult.Type.NOTFOUND;
return result;
}
/**
* Check permissions, including it's group and inheritance.
*
* @param user
* @param permission
* @return true if permission was found. false if not, or was negated.
*/
public boolean checkUserPermission(User user, String permission) {
PermissionCheckResult result = checkFullGMPermission(user, permission, true);
if (result.resultType == PermissionCheckResult.Type.EXCEPTION || result.resultType == PermissionCheckResult.Type.FOUND) {
return true;
}
return false;
}
/**
* Do what checkUserPermission did before. But now returning a
* PermissionCheckResult.
*
* @param user
* @param targetPermission
* @return PermissionCheckResult
*/
public PermissionCheckResult checkFullUserPermission(User user, String targetPermission) {
return checkFullGMPermission(user, targetPermission, true);
}
/**
* Wrapper for offline server checks.
* Looks for the 'groupmanager.noofflineperms' permissions and reports no permissions on servers set to offline.
*
* Check user and groups with inheritance and Bukkit if bukkit = true return
* a PermissionCheckResult.
*
* @param user
* @param targetPermission
* @param checkBukkit
* @return PermissionCheckResult
*/
public PermissionCheckResult checkFullGMPermission(User user, String targetPermission, Boolean checkBukkit) {
/*
* Report no permissions under the following conditions.
*
* We are in offline mode
* and the player has the 'groupmanager.noofflineperms' permission.
*/
if (user == null || targetPermission == null || targetPermission.isEmpty()
|| (!Bukkit.getServer().getOnlineMode()
&& (checkPermission(user, "groupmanager.noofflineperms", false).resultType == PermissionCheckResult.Type.FOUND))) {
PermissionCheckResult result = new PermissionCheckResult();
result.accessLevel = targetPermission;
result.resultType = PermissionCheckResult.Type.NOTFOUND;
return result;
}
return checkPermission(user, targetPermission, checkBukkit);
}
/**
*
* Check user and groups with inheritance and Bukkit if bukkit = true return
* a PermissionCheckResult.
*
* @param user
* @param targetPermission
* @param checkBukkit
* @return PermissionCheckResult
*/
private PermissionCheckResult checkPermission(User user, String targetPermission, Boolean checkBukkit) {
PermissionCheckResult result = new PermissionCheckResult();
result.accessLevel = targetPermission;
result.resultType = PermissionCheckResult.Type.NOTFOUND;
if (checkBukkit) {
// Check Bukkit perms to support plugins which add perms via code
// (Heroes).
final Player player = user.getBukkitPlayer();
//final Permission bukkitPerm = Bukkit.getPluginManager().getPermission(targetPermission);
if ((player != null) && player.hasPermission(targetPermission)) {
result.resultType = PermissionCheckResult.Type.FOUND;
result.owner = user;
return result;
}
}
PermissionCheckResult resultUser = checkUserOnlyPermission(user, targetPermission);
if (resultUser.resultType != PermissionCheckResult.Type.NOTFOUND) {
resultUser.accessLevel = targetPermission;
if (resultUser.resultType == PermissionCheckResult.Type.EXCEPTION) {
return resultUser;
}
result = resultUser;
}
// IT ONLY CHECKS GROUPS PERMISSIONS IF RESULT FOR USER IS NOT AN EXCEPTION
PermissionCheckResult resultGroup = checkGroupPermissionWithInheritance(user.getGroup(), targetPermission);
if (resultGroup.resultType != PermissionCheckResult.Type.NOTFOUND) {
resultGroup.accessLevel = targetPermission;
if (resultGroup.resultType == PermissionCheckResult.Type.EXCEPTION) {
return resultGroup;
}
// Do not override higher level permissions with negations.
if (result.resultType == PermissionCheckResult.Type.NOTFOUND) {
result = resultGroup;
}
}
// Do we have a high level negation?
boolean negated = (result.resultType == PermissionCheckResult.Type.NEGATION);
// SUBGROUPS CHECK
for (Group subGroup : user.subGroupListCopy()) {
PermissionCheckResult resultSubGroup = checkGroupPermissionWithInheritance(subGroup, targetPermission);
if (resultSubGroup.resultType != PermissionCheckResult.Type.NOTFOUND) {
resultSubGroup.accessLevel = targetPermission;
// Allow exceptions to override higher level negations
// but low level negations can not remove higher level permissions.
if (resultSubGroup.resultType == PermissionCheckResult.Type.EXCEPTION) {
return resultSubGroup;
} else if ((resultSubGroup.resultType == PermissionCheckResult.Type.FOUND) && (result.resultType != PermissionCheckResult.Type.NEGATION) && !negated) {
result = resultSubGroup;
} else if ((resultSubGroup.resultType == PermissionCheckResult.Type.NEGATION) && !negated) {
result = resultSubGroup;
}
}
}
// THEN IT RETURNS A NOT FOUND
// OR THE RESULT OF THE SUBGROUP SEARCH.
return result;
}
/**
* Returns the next group, including inheritance, which contains that
* variable name.
*
* It does Breadth-first search
*
* @param start the starting group to look for
* @param targetVariable the variable name
* @return The group if found. Null if not.
*/
public Group nextGroupWithVariable(Group start, String targetVariable) {
if (start == null || targetVariable == null) {
return null;
}
LinkedList<Group> stack = new LinkedList<Group>();
ArrayList<Group> alreadyVisited = new ArrayList<Group>();
stack.push(start);
alreadyVisited.add(start);
while (!stack.isEmpty()) {
Group now = stack.pop();
if (now.getVariables().hasVar(targetVariable)) {
return now;
}
for (String sonName : now.getInherits()) {
Group son = ph.getGroup(sonName);
if (son != null && !alreadyVisited.contains(son)) {
stack.push(son);
alreadyVisited.add(son);
}
}
}
return null;
}
/**
* Check if given group inherits another group.
*
* It does Breadth-first search
*
* @param start The group to start the search.
* @param askedGroup Name of the group you're looking for
* @return true if it inherits the group.
*/
public boolean hasGroupInInheritance(Group start, String askedGroup) {
if (start == null || askedGroup == null) {
return false;
}
LinkedList<Group> stack = new LinkedList<Group>();
ArrayList<Group> alreadyVisited = new ArrayList<Group>();
stack.push(start);
alreadyVisited.add(start);
while (!stack.isEmpty()) {
Group now = stack.pop();
if (now.getName().equalsIgnoreCase(askedGroup)) {
return true;
}
for (String sonName : now.getInherits()) {
Group son = ph.getGroup(sonName);
if (son != null && !alreadyVisited.contains(son)) {
stack.push(son);
alreadyVisited.add(son);
}
}
}
return false;
}
/**
* Returns the result of permission check. Including inheritance. If found
* anything, the PermissionCheckResult that retuns will include the Group
* name, and the result type. Result types will be EXCEPTION, NEGATION,
* FOUND.
*
* If returned type NOTFOUND, the owner will be null, and ownerType too.
*
* It does Breadth-first search
*
* @param start
* @param targetPermission
* @return PermissionCheckResult
*/
public PermissionCheckResult checkGroupPermissionWithInheritance(Group start, String targetPermission) {
if (start == null || targetPermission == null) {
return null;
}
LinkedList<Group> stack = new LinkedList<Group>();
List<Group> alreadyVisited = new ArrayList<Group>();
PermissionCheckResult result = new PermissionCheckResult();
stack.push(start);
alreadyVisited.add(start);
// Set defaults.
result.askedPermission = targetPermission;
result.resultType = PermissionCheckResult.Type.NOTFOUND;
while (!stack.isEmpty()) {
Group now = stack.pop();
PermissionCheckResult resultNow = checkGroupOnlyPermission(now, targetPermission);
if (!resultNow.resultType.equals(PermissionCheckResult.Type.NOTFOUND)) {
if (resultNow.resultType.equals(PermissionCheckResult.Type.EXCEPTION)) {
resultNow.accessLevel = targetPermission;
return resultNow;
}
if (!result.resultType.equals(PermissionCheckResult.Type.NEGATION)) {
// No Negation found so store for later
// as we need to continue looking for an Exception.
result = resultNow;
}
}
for (String sonName : now.getInherits()) {
Group son = ph.getGroup(sonName);
if (son != null && !alreadyVisited.contains(son)) {
// Add rather than push to retain inheritance order.
stack.add(son);
alreadyVisited.add(son);
}
}
}
return result;
}
/**
* Return whole list of names of groups in a inheritance chain. Including a
* starting group.
*
* It does Breadth-first search. So closer groups will appear first in list.
*
* @param start
* @return the group that passed on test. null if no group passed.
*/
public ArrayList<String> listAllGroupsInherited(Group start) {
if (start == null) {
return null;
}
LinkedList<Group> stack = new LinkedList<Group>();
ArrayList<String> alreadyVisited = new ArrayList<String>();
stack.push(start);
alreadyVisited.add(start.getName());
while (!stack.isEmpty()) {
Group now = stack.pop();
for (String sonName : now.getInherits()) {
Group son = ph.getGroup(sonName);
if (son != null && !alreadyVisited.contains(son.getName())) {
stack.push(son);
alreadyVisited.add(son.getName());
}
}
}
return alreadyVisited;
}
/**
* Compare a user permission like 'myplugin.*' against a full plugin
* permission name, like 'myplugin.dosomething'. As the example above, will
* return true.
*
* Please sort permissions before sending them here. So negative tokens get
* priority.
*
* You must test if it start with negative outside this method. It will only
* tell if the nodes are matching or not.
*
* Every '-' or '+' in the beginning is ignored. It will match only node
* names.
*
* @param userAccessLevel
* @param fullPermissionName
* @return PermissionCheckResult.Type
*/
public PermissionCheckResult.Type comparePermissionString(String userAccessLevel, String fullPermissionName) {
int userAccessLevelLength;
if (userAccessLevel == null || fullPermissionName == null || fullPermissionName.length() == 0 || (userAccessLevelLength = userAccessLevel.length()) == 0) {
return PermissionCheckResult.Type.NOTFOUND;
}
PermissionCheckResult.Type result = PermissionCheckResult.Type.FOUND;
int userAccessLevelOffset = 0;
if (userAccessLevel.charAt(0) == '+') {
userAccessLevelOffset = 1;
result = PermissionCheckResult.Type.EXCEPTION;
} else if (userAccessLevel.charAt(0) == '-') {
userAccessLevelOffset = 1;
result = PermissionCheckResult.Type.NEGATION;
}
if (fullPermissionName.equals(userAccessLevel)) {
return result;
}
if ("groupmanager.noofflineperms".equals(fullPermissionName)) {
result = PermissionCheckResult.Type.NOTFOUND;
}
if ("*".regionMatches(0, userAccessLevel, userAccessLevelOffset, userAccessLevelLength - userAccessLevelOffset)) {
return result;
}
int fullPermissionNameOffset;
if (fullPermissionName.charAt(0) == '+' || fullPermissionName.charAt(0) == '-') {
fullPermissionNameOffset = 1;
} else {
fullPermissionNameOffset = 0;
}
if (userAccessLevel.charAt(userAccessLevel.length() - 1) == '*') {
return userAccessLevel.regionMatches(true, userAccessLevelOffset, fullPermissionName, fullPermissionNameOffset, userAccessLevelLength - userAccessLevelOffset - 1) ? result : PermissionCheckResult.Type.NOTFOUND;
} else {
return userAccessLevel.regionMatches(true, userAccessLevelOffset, fullPermissionName, fullPermissionNameOffset, Math.max(userAccessLevelLength - userAccessLevelOffset, fullPermissionName.length() - fullPermissionNameOffset)) ? result : PermissionCheckResult.Type.NOTFOUND;
}
}
/**
* Returns a list of all groups.
*
* Including subgroups.
*
* @param userName
* @return String[] of all group names.
*/
@Override
public String[] getGroups(String userName) {
ArrayList<String> allGroups = listAllGroupsInherited(ph.getUser(userName).getGroup());
for (Group subg : ph.getUser(userName).subGroupListCopy()) {
allGroups.addAll(listAllGroupsInherited(subg));
}
String[] arr = new String[allGroups.size()];
return allGroups.toArray(arr);
}
/**
* A Breadth-first search thru inheritance model.
*
* Just a model to copy and paste. This will guarantee the closer groups
* will be checked first.
*
* @param start
* @param targerPermission
* @return
*/
@SuppressWarnings("unused")
private Group breadthFirstSearch(Group start, String targerPermission) {
if (start == null || targerPermission == null) {
return null;
}
LinkedList<Group> stack = new LinkedList<Group>();
ArrayList<Group> alreadyVisited = new ArrayList<Group>();
stack.push(start);
alreadyVisited.add(start);
while (!stack.isEmpty()) {
Group now = stack.pop();
PermissionCheckResult resultNow = checkGroupOnlyPermission(now, targerPermission);
if (resultNow.resultType.equals(PermissionCheckResult.Type.EXCEPTION) || resultNow.resultType.equals(PermissionCheckResult.Type.FOUND)) {
return now;
}
if (resultNow.resultType.equals(PermissionCheckResult.Type.NEGATION)) {
return null;
}
for (String sonName : now.getInherits()) {
Group son = ph.getGroup(sonName);
if (son != null && !alreadyVisited.contains(son)) {
stack.push(son);
alreadyVisited.add(son);
}
}
}
return null;
}
@Override
public Group getDefaultGroup() {
return ph.getDefaultGroup();
}
@Override
public String getInfoString(String entryName, String path, boolean isGroup) {
if (isGroup) {
Group data = ph.getGroup(entryName);
if (data == null) {
return null;
}
return data.getVariables().getVarString(path);
} else {
User data = ph.getUser(entryName);
if (data == null) {
return null;
}
return data.getVariables().getVarString(path);
}
}
@Override
public int getInfoInteger(String entryName, String path, boolean isGroup) {
if (isGroup) {
Group data = ph.getGroup(entryName);
if (data == null) {
return -1;
}
return data.getVariables().getVarInteger(path);
} else {
User data = ph.getUser(entryName);
if (data == null) {
return -1;
}
return data.getVariables().getVarInteger(path);
}
}
@Override
public double getInfoDouble(String entryName, String path, boolean isGroup) {
if (isGroup) {
Group data = ph.getGroup(entryName);
if (data == null) {
return -1;
}
return data.getVariables().getVarDouble(path);
} else {
User data = ph.getUser(entryName);
if (data == null) {
return -1;
}
return data.getVariables().getVarDouble(path);
}
}
@Override
public boolean getInfoBoolean(String entryName, String path, boolean isGroup) {
if (isGroup) {
Group data = ph.getGroup(entryName);
if (data == null) {
return false;
}
return data.getVariables().getVarBoolean(path);
} else {
User data = ph.getUser(entryName);
if (data == null) {
return false;
}
return data.getVariables().getVarBoolean(path);
}
}
@Override
public void addUserInfo(String name, String path, Object data) {
ph.getUser(name).getVariables().addVar(path, data);
}
@Override
public void removeUserInfo(String name, String path) {
ph.getUser(name).getVariables().removeVar(path);
}
@Override
public void addGroupInfo(String name, String path, Object data) {
ph.getGroup(name).getVariables().addVar(path, data);
}
@Override
public void removeGroupInfo(String name, String path) {
ph.getGroup(name).getVariables().removeVar(path);
}
}
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