140 lines
4.1 KiB
Java
140 lines
4.1 KiB
Java
package com.hypixel.hytale.protocol.packets.asseteditor;
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import com.hypixel.hytale.protocol.io.PacketIO;
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import com.hypixel.hytale.protocol.io.ProtocolException;
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import com.hypixel.hytale.protocol.io.ValidationResult;
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import com.hypixel.hytale.protocol.io.VarInt;
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import io.netty.buffer.ByteBuf;
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import java.util.Objects;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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public class AssetEditorFileEntry {
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public static final int NULLABLE_BIT_FIELD_SIZE = 1;
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public static final int FIXED_BLOCK_SIZE = 2;
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public static final int VARIABLE_FIELD_COUNT = 1;
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public static final int VARIABLE_BLOCK_START = 2;
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public static final int MAX_SIZE = 16384007;
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@Nullable
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public String path;
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public boolean isDirectory;
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public AssetEditorFileEntry() {
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}
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public AssetEditorFileEntry(@Nullable String path, boolean isDirectory) {
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this.path = path;
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this.isDirectory = isDirectory;
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}
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public AssetEditorFileEntry(@Nonnull AssetEditorFileEntry other) {
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this.path = other.path;
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this.isDirectory = other.isDirectory;
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}
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@Nonnull
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public static AssetEditorFileEntry deserialize(@Nonnull ByteBuf buf, int offset) {
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AssetEditorFileEntry obj = new AssetEditorFileEntry();
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byte nullBits = buf.getByte(offset);
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obj.isDirectory = buf.getByte(offset + 1) != 0;
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int pos = offset + 2;
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if ((nullBits & 1) != 0) {
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int pathLen = VarInt.peek(buf, pos);
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if (pathLen < 0) {
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throw ProtocolException.negativeLength("Path", pathLen);
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}
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if (pathLen > 4096000) {
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throw ProtocolException.stringTooLong("Path", pathLen, 4096000);
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}
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int pathVarLen = VarInt.length(buf, pos);
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obj.path = PacketIO.readVarString(buf, pos, PacketIO.UTF8);
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pos += pathVarLen + pathLen;
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}
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return obj;
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}
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public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
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byte nullBits = buf.getByte(offset);
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int pos = offset + 2;
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if ((nullBits & 1) != 0) {
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int sl = VarInt.peek(buf, pos);
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pos += VarInt.length(buf, pos) + sl;
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}
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return pos - offset;
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}
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public void serialize(@Nonnull ByteBuf buf) {
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byte nullBits = 0;
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if (this.path != null) {
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nullBits = (byte)(nullBits | 1);
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}
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buf.writeByte(nullBits);
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buf.writeByte(this.isDirectory ? 1 : 0);
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if (this.path != null) {
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PacketIO.writeVarString(buf, this.path, 4096000);
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}
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}
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public int computeSize() {
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int size = 2;
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if (this.path != null) {
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size += PacketIO.stringSize(this.path);
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}
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return size;
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}
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public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
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if (buffer.readableBytes() - offset < 2) {
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return ValidationResult.error("Buffer too small: expected at least 2 bytes");
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} else {
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byte nullBits = buffer.getByte(offset);
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int pos = offset + 2;
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if ((nullBits & 1) != 0) {
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int pathLen = VarInt.peek(buffer, pos);
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if (pathLen < 0) {
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return ValidationResult.error("Invalid string length for Path");
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}
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if (pathLen > 4096000) {
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return ValidationResult.error("Path exceeds max length 4096000");
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}
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pos += VarInt.length(buffer, pos);
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pos += pathLen;
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if (pos > buffer.writerIndex()) {
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return ValidationResult.error("Buffer overflow reading Path");
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}
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}
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return ValidationResult.OK;
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}
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}
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public AssetEditorFileEntry clone() {
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AssetEditorFileEntry copy = new AssetEditorFileEntry();
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copy.path = this.path;
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copy.isDirectory = this.isDirectory;
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return copy;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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} else {
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return !(obj instanceof AssetEditorFileEntry other) ? false : Objects.equals(this.path, other.path) && this.isDirectory == other.isDirectory;
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}
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}
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@Override
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public int hashCode() {
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return Objects.hash(this.path, this.isDirectory);
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}
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}
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