Tweaks to command permissions

dicore3/command/src/main/java/io/dico/dicore/command/IContextFilter.java

@@ -3,6 +3,7 @@ package io.dico.dicore.command;
 import io.dico.dicore.exceptions.checkedfunctions.CheckedConsumer;
 import io.dico.dicore.exceptions.checkedfunctions.CheckedRunnable;
 import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
 import java.util.Objects;
@@ -52,10 +53,11 @@ public interface IContextFilter extends Comparable<IContextFilter> {
      * @return comparison value
      */
     @Override
-    default int compareTo(IContextFilter o) {
+    default int compareTo(@NotNull IContextFilter o) {
         return getPriority().compareTo(o.getPriority());
     }
 
+    /*
     default boolean isInheritable() {
         return false;
     }
@@ -66,7 +68,7 @@ public interface IContextFilter extends Comparable<IContextFilter> {
         }
 
         return this;
-    }
+    }*/
 
     /**
      * IContextFilter priorities. Executes from top to bottom.
@@ -110,6 +112,8 @@ public interface IContextFilter extends Comparable<IContextFilter> {
          */
         POST_PARAMETERS;
 
+        private IContextFilter inheritor;
+
         /**
          * Get the context filter that inherits context filters from the parent of the same priority.
          * If this filter is also present at the parent, it will do the same for the parent's parent, and so on.
@@ -117,56 +121,12 @@ public interface IContextFilter extends Comparable<IContextFilter> {
          * @return the inheritor
          */
         public IContextFilter getInheritor() {
+            if (inheritor == null) {
+                inheritor = InheritingContextFilter.inheritingPriority(this);
+            }
             return inheritor;
         }
 
-        private static String[] addParent(String[] path, String parent) {
-            String[] out = new String[path.length + 1];
-            System.arraycopy(path, 0, out, 0, path.length);
-            out[0] = parent;
-            return out;
-        }
-
-        final IContextFilter inheritor = new IContextFilter() {
-            @Override
-            public void filterContext(ExecutionContext context) throws CommandException {
-                ICommandAddress address = context.getAddress();
-
-                String[] traversedPath = new String[0];
-                do {
-                    traversedPath = addParent(traversedPath, address.getMainKey());
-                    address = address.getParent();
-
-                    if (address != null && address.hasCommand()) {
-                        boolean doBreak = true;
-
-                        Command command = address.getCommand();
-                        List<IContextFilter> contextFilterList = command.getContextFilters();
-                        for (IContextFilter filter : contextFilterList) {
-                            if (filter.getPriority() == Priority.this) {
-                                if (filter == this) {
-                                    // do the same for next parent
-                                    // this method is necessary to keep traversedPath information
-                                    doBreak = false;
-                                } else {
-                                    filter.filterSubContext(context, traversedPath);
-                                }
-                            }
-                        }
-
-                        if (doBreak) {
-                            break;
-                        }
-                    }
-                } while (address != null);
-            }
-
-            @Override
-            public Priority getPriority() {
-                return Priority.this;
-            }
-        };
-
     }
 
     /**
@@ -215,14 +175,15 @@ public interface IContextFilter extends Comparable<IContextFilter> {
     }
 
     static IContextFilter permission(String permission) {
-        Objects.requireNonNull(permission);
+        return new PermissionContextFilter(permission);
-        return filterSender(Priority.PERMISSION, sender -> Validate.isAuthorized(sender, permission));
     }
 
     static IContextFilter permission(String permission, String failMessage) {
-        Objects.requireNonNull(permission);
+        return new PermissionContextFilter(permission, failMessage);
-        Objects.requireNonNull(failMessage);
+    }
-        return filterSender(Priority.PERMISSION, sender -> Validate.isAuthorized(sender, permission, failMessage));
+
+    static IContextFilter inheritablePermission(String permission) {
+        return new PermissionContextFilter(permission, true);
     }
 
     /**
@@ -236,87 +197,8 @@ public interface IContextFilter extends Comparable<IContextFilter> {
      * @throws IllegalArgumentException if componentInsertionIndex is out of range
      */
     static IContextFilter inheritablePermission(String permission, int componentInsertionIndex, String failMessage) {
-        Objects.requireNonNull(permission);
+        return new PermissionContextFilter(permission, componentInsertionIndex, failMessage);
-        Objects.requireNonNull(failMessage);
-        if (componentInsertionIndex > permission.split("\\.").length || componentInsertionIndex < -1) {
-            throw new IllegalArgumentException("componentInsertionIndex out of range");
-        }
-
-
-        return new IContextFilter() {
-            private String getInheritedPermission(String[] components) {
-                int insertedAmount = components.length;
-                String[] currentComponents = permission.split("\\.");
-                int currentAmount = currentComponents.length;
-                String[] targetArray = new String[currentAmount + insertedAmount];
-
-                int insertionIndex;
-                //int newInsertionIndex;
-                if (componentInsertionIndex == -1) {
-                    insertionIndex = currentAmount;
-                    //newInsertionIndex = -1;
-                } else {
-                    insertionIndex = componentInsertionIndex;
-                    //newInsertionIndex = insertionIndex + insertedAmount;
-                }
-
-                // copy the current components up to insertionIndex
-                System.arraycopy(currentComponents, 0, targetArray, 0, insertionIndex);
-                // copy the new components into the array at insertionIndex
-                System.arraycopy(components, 0, targetArray, insertionIndex, insertedAmount);
-                // copy the current components from insertionIndex + inserted amount
-                System.arraycopy(currentComponents, insertionIndex, targetArray, insertionIndex + insertedAmount, currentAmount - insertionIndex);
-
-                return String.join(".", targetArray);
-            }
-
-            @Override
-            public void filterContext(ExecutionContext context) throws CommandException {
-                Validate.isAuthorized(context.getSender(), permission, failMessage);
-            }
-
-            @Override
-            public void filterSubContext(ExecutionContext subContext, String... path) throws CommandException {
-                Validate.isAuthorized(subContext.getSender(), getInheritedPermission(path), failMessage);
-            }
-
-            @Override
-            public Priority getPriority() {
-                return Priority.PERMISSION;
-            }
-
-            @Override
-            public boolean isInheritable() {
-                return true;
-            }
-
-            @Override
-            public IContextFilter inherit(String... components) {
-                int insertedAmount = components.length;
-                String[] currentComponents = permission.split("\\.");
-                int currentAmount = currentComponents.length;
-                String[] targetArray = new String[currentAmount + insertedAmount];
-
-                int insertionIndex;
-                int newInsertionIndex;
-                if (componentInsertionIndex == -1) {
-                    insertionIndex = currentAmount;
-                    newInsertionIndex = -1;
-                } else {
-                    insertionIndex = componentInsertionIndex;
-                    newInsertionIndex = insertionIndex + insertedAmount;
-                }
-
-                // copy the current components up to insertionIndex
-                System.arraycopy(currentComponents, 0, targetArray, 0, insertionIndex);
-                // copy the new components into the array at insertionIndex
-                System.arraycopy(components, 0, targetArray, insertionIndex, insertedAmount);
-                // copy the current components from insertionIndex + inserted amount
-                System.arraycopy(currentComponents, insertionIndex, targetArray, insertionIndex + insertedAmount, currentAmount - insertionIndex);
-
-                return inheritablePermission(String.join(".", targetArray), newInsertionIndex, failMessage);
-            }
-        };
     }
 
 }
+

dicore3/command/src/main/java/io/dico/dicore/command/InheritingContextFilter.java

@@ -0,0 +1,64 @@
+package io.dico.dicore.command;
+
+import java.util.List;
+
+public abstract class InheritingContextFilter implements IContextFilter {
+    private static final String[] emptyStringArray = new String[0];
+
+    private static String[] addParent(String[] path, String parent) {
+        String[] out = new String[path.length + 1];
+        System.arraycopy(path, 0, out, 0, path.length);
+        out[0] = parent;
+        return out;
+    }
+
+    protected abstract boolean isInherited(IContextFilter filter);
+
+    @Override
+    public void filterContext(ExecutionContext context) throws CommandException {
+        ICommandAddress address = context.getAddress();
+
+        String[] traversedPath = emptyStringArray;
+        do {
+            traversedPath = addParent(traversedPath, address.getMainKey());
+            address = address.getParent();
+
+            if (address != null && address.hasCommand()) {
+                boolean doBreak = true;
+
+                Command command = address.getCommand();
+                List<IContextFilter> contextFilterList = command.getContextFilters();
+                for (IContextFilter filter : contextFilterList) {
+                    if (isInherited(filter)) {
+                        if (filter == this) {
+                            // do the same for next parent
+                            // this method is necessary to keep traversedPath information
+                            doBreak = false;
+                        } else {
+                            filter.filterSubContext(context, traversedPath);
+                        }
+                    }
+                }
+
+                if (doBreak) {
+                    break;
+                }
+            }
+        } while (address != null);
+    }
+
+    static InheritingContextFilter inheritingPriority(Priority priority) {
+        return new InheritingContextFilter() {
+            @Override
+            protected boolean isInherited(IContextFilter filter) {
+                return filter.getPriority() == priority;
+            }
+
+            @Override
+            public Priority getPriority() {
+                return priority;
+            }
+        };
+    }
+
+}

dicore3/command/src/main/java/io/dico/dicore/command/PermissionContextFilter.java

@@ -0,0 +1,93 @@
+package io.dico.dicore.command;
+
+import java.util.Objects;
+
+public class PermissionContextFilter implements IContextFilter {
+    private String permission;
+    private String[] permissionComponents;
+    private int componentInsertionIndex;
+    private String failMessage;
+
+    public PermissionContextFilter(String permission) {
+        this.permission = Objects.requireNonNull(permission);
+    }
+
+    public PermissionContextFilter(String permission, String failMessage) {
+        this(permission);
+        this.failMessage = failMessage;
+    }
+
+    public PermissionContextFilter(String permission, boolean inheritable) {
+        this(permission, null, inheritable);
+    }
+
+    public PermissionContextFilter(String permission, String failMessage, boolean inheritable) {
+        this(permission, failMessage);
+        if (inheritable) {
+            setupInheritability(-1);
+        }
+    }
+
+    public PermissionContextFilter(String permission, int componentInsertionIndex, String failMessage) {
+        this(permission, failMessage);
+        setupInheritability(componentInsertionIndex);
+    }
+
+    private void setupInheritability(int componentInsertionIndex) {
+        this.permissionComponents = permission.split("\\.");
+        this.componentInsertionIndex = componentInsertionIndex < 0 ? permissionComponents.length : componentInsertionIndex;
+        if (componentInsertionIndex > permissionComponents.length) throw new IllegalArgumentException();
+    }
+
+    private void doFilter(ExecutionContext context, String permission) throws CommandException {
+        if (failMessage != null) {
+            Validate.isAuthorized(context.getSender(), permission, failMessage);
+        } else {
+            Validate.isAuthorized(context.getSender(), permission);
+        }
+    }
+
+    @Override
+    public void filterContext(ExecutionContext context) throws CommandException {
+        doFilter(context, permission);
+    }
+
+    private String getInheritedPermission(String[] components) {
+        int insertedAmount = components.length;
+        String[] currentComponents = permissionComponents;
+        int currentAmount = currentComponents.length;
+        String[] targetArray = new String[currentAmount + insertedAmount];
+
+        int insertionIndex;
+        //int newInsertionIndex;
+        if (componentInsertionIndex == -1) {
+            insertionIndex = currentAmount;
+            //newInsertionIndex = -1;
+        } else {
+            insertionIndex = componentInsertionIndex;
+            //newInsertionIndex = insertionIndex + insertedAmount;
+        }
+
+        // copy the current components up to insertionIndex
+        System.arraycopy(currentComponents, 0, targetArray, 0, insertionIndex);
+        // copy the new components into the array at insertionIndex
+        System.arraycopy(components, 0, targetArray, insertionIndex, insertedAmount);
+        // copy the current components from insertionIndex + inserted amount
+        System.arraycopy(currentComponents, insertionIndex, targetArray, insertionIndex + insertedAmount, currentAmount - insertionIndex);
+
+        return String.join(".", targetArray);
+    }
+
+    @Override
+    public void filterSubContext(ExecutionContext subContext, String... path) throws CommandException {
+        if (permissionComponents != null) {
+            doFilter(subContext, getInheritedPermission(path));
+        }
+    }
+
+    @Override
+    public Priority getPriority() {
+        return Priority.PERMISSION;
+    }
+
+}

dicore3/command/src/main/java/io/dico/dicore/command/registration/reflect/ReflectiveRegistration.java

@@ -350,7 +350,7 @@ public class ReflectiveRegistration {
 
         try {
             //noinspection unchecked
-            String flagPermission = flag == null ? null : flag.permission();
+            String flagPermission = flag == null || flag.permission().isEmpty() ? null : flag.permission();
             return new Parameter<>(name, descString, parameterType, parameterInfo, type.isPrimitive(), name.startsWith("-"), flagPermission);
         } catch (Exception ex) {
             throw new CommandParseException("Invalid parameter", ex);

src/main/kotlin/io/dico/parcels2/command/CommandsDebug.kt

@@ -13,6 +13,7 @@ import org.bukkit.Bukkit
 import org.bukkit.Material
 import org.bukkit.block.BlockFace
 import org.bukkit.block.data.Directional
+import org.bukkit.command.CommandSender
 import org.bukkit.entity.Player
 import java.util.Random
 
@@ -86,7 +87,12 @@ class CommandsDebug(plugin: ParcelsPlugin) : AbstractParcelCommands(plugin) {
     fun cmdForceVisitors(): Any? {
         val workers = plugin.workDispatcher.workers
         plugin.workDispatcher.completeAllTasks()
-        return "Task count: ${workers.size}"
+        return "Completed task count: ${workers.size}"
+    }
+
+    @Cmd("hasperm")
+    fun cmdHasperm(sender: CommandSender, target: Player, permission: String): Any? {
+        return target.hasPermission(permission).toString()
     }
 
 }

src/main/kotlin/io/dico/parcels2/command/ParcelCommandBuilder.kt

@@ -9,8 +9,7 @@ import java.util.LinkedList
 import java.util.Queue
 
 @Suppress("UsePropertyAccessSyntax")
-fun getParcelCommands(plugin: ParcelsPlugin): ICommandDispatcher =
+fun getParcelCommands(plugin: ParcelsPlugin): ICommandDispatcher = CommandBuilder().apply {
-    with(CommandBuilder()) {
     val parcelsAddress = SpecialCommandAddress()
 
     setChatController(ParcelsChatController())
@@ -19,7 +18,7 @@ fun getParcelCommands(plugin: ParcelsPlugin): ICommandDispatcher =
     addParameterType(true, ParcelTarget.PType(plugin.parcelProvider, parcelsAddress))
 
     group(parcelsAddress, "parcel", "plot", "plots", "p") {
-            addRequiredPermission("parcels.command")
+        addContextFilter(IContextFilter.inheritablePermission("parcels.command"))
         registerCommands(CommandsGeneral(plugin, parcelsAddress))
         registerCommands(CommandsPrivilegesLocal(plugin))
 
@@ -53,9 +52,8 @@ fun getParcelCommands(plugin: ParcelsPlugin): ICommandDispatcher =
         }
     }
 
-        generateHelpAndSyntaxCommands()
+    generateHelpAndSyntaxCommands(parcelsAddress)
-        getDispatcher()
+}.getDispatcher()
-    }
 
 inline fun CommandBuilder.group(name: String, vararg aliases: String, config: CommandBuilder.() -> Unit) {
     group(name, *aliases)
@@ -69,8 +67,8 @@ inline fun CommandBuilder.group(address: ICommandAddress, name: String, vararg a
     parent()
 }
 
-private fun CommandBuilder.generateHelpAndSyntaxCommands(): CommandBuilder {
+private fun CommandBuilder.generateHelpAndSyntaxCommands(root: ICommandAddress): CommandBuilder {
-    generateCommands(dispatcher as ICommandAddress, "help", "syntax")
+    generateCommands(root, "help", "syntax")
     return this
 }
 

src/main/kotlin/io/dico/parcels2/command/ParcelOptionsInteractCommand.kt

@@ -15,6 +15,7 @@ class ParcelOptionsInteractCommand(val parcelProvider: ParcelProvider) : Command
 
     init {
         addContextFilter(IContextFilter.PLAYER_ONLY)
+        addContextFilter(IContextFilter.INHERIT_PERMISSIONS)
         addParameter("allowed", "allowed", ParameterTypes.BOOLEAN)
     }