134 lines
3.8 KiB
Java
134 lines
3.8 KiB
Java
package com.hypixel.hytale.protocol.packets.asseteditor;
|
|
|
|
import com.hypixel.hytale.protocol.io.PacketIO;
|
|
import com.hypixel.hytale.protocol.io.ProtocolException;
|
|
import com.hypixel.hytale.protocol.io.ValidationResult;
|
|
import com.hypixel.hytale.protocol.io.VarInt;
|
|
import io.netty.buffer.ByteBuf;
|
|
import java.util.Objects;
|
|
import javax.annotation.Nonnull;
|
|
import javax.annotation.Nullable;
|
|
|
|
public class SchemaFile {
|
|
public static final int NULLABLE_BIT_FIELD_SIZE = 1;
|
|
public static final int FIXED_BLOCK_SIZE = 1;
|
|
public static final int VARIABLE_FIELD_COUNT = 1;
|
|
public static final int VARIABLE_BLOCK_START = 1;
|
|
public static final int MAX_SIZE = 16384006;
|
|
@Nullable
|
|
public String content;
|
|
|
|
public SchemaFile() {
|
|
}
|
|
|
|
public SchemaFile(@Nullable String content) {
|
|
this.content = content;
|
|
}
|
|
|
|
public SchemaFile(@Nonnull SchemaFile other) {
|
|
this.content = other.content;
|
|
}
|
|
|
|
@Nonnull
|
|
public static SchemaFile deserialize(@Nonnull ByteBuf buf, int offset) {
|
|
SchemaFile obj = new SchemaFile();
|
|
byte nullBits = buf.getByte(offset);
|
|
int pos = offset + 1;
|
|
if ((nullBits & 1) != 0) {
|
|
int contentLen = VarInt.peek(buf, pos);
|
|
if (contentLen < 0) {
|
|
throw ProtocolException.negativeLength("Content", contentLen);
|
|
}
|
|
|
|
if (contentLen > 4096000) {
|
|
throw ProtocolException.stringTooLong("Content", contentLen, 4096000);
|
|
}
|
|
|
|
int contentVarLen = VarInt.length(buf, pos);
|
|
obj.content = PacketIO.readVarString(buf, pos, PacketIO.UTF8);
|
|
pos += contentVarLen + contentLen;
|
|
}
|
|
|
|
return obj;
|
|
}
|
|
|
|
public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
|
|
byte nullBits = buf.getByte(offset);
|
|
int pos = offset + 1;
|
|
if ((nullBits & 1) != 0) {
|
|
int sl = VarInt.peek(buf, pos);
|
|
pos += VarInt.length(buf, pos) + sl;
|
|
}
|
|
|
|
return pos - offset;
|
|
}
|
|
|
|
public void serialize(@Nonnull ByteBuf buf) {
|
|
byte nullBits = 0;
|
|
if (this.content != null) {
|
|
nullBits = (byte)(nullBits | 1);
|
|
}
|
|
|
|
buf.writeByte(nullBits);
|
|
if (this.content != null) {
|
|
PacketIO.writeVarString(buf, this.content, 4096000);
|
|
}
|
|
}
|
|
|
|
public int computeSize() {
|
|
int size = 1;
|
|
if (this.content != null) {
|
|
size += PacketIO.stringSize(this.content);
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
|
|
if (buffer.readableBytes() - offset < 1) {
|
|
return ValidationResult.error("Buffer too small: expected at least 1 bytes");
|
|
} else {
|
|
byte nullBits = buffer.getByte(offset);
|
|
int pos = offset + 1;
|
|
if ((nullBits & 1) != 0) {
|
|
int contentLen = VarInt.peek(buffer, pos);
|
|
if (contentLen < 0) {
|
|
return ValidationResult.error("Invalid string length for Content");
|
|
}
|
|
|
|
if (contentLen > 4096000) {
|
|
return ValidationResult.error("Content exceeds max length 4096000");
|
|
}
|
|
|
|
pos += VarInt.length(buffer, pos);
|
|
pos += contentLen;
|
|
if (pos > buffer.writerIndex()) {
|
|
return ValidationResult.error("Buffer overflow reading Content");
|
|
}
|
|
}
|
|
|
|
return ValidationResult.OK;
|
|
}
|
|
}
|
|
|
|
public SchemaFile clone() {
|
|
SchemaFile copy = new SchemaFile();
|
|
copy.content = this.content;
|
|
return copy;
|
|
}
|
|
|
|
@Override
|
|
public boolean equals(Object obj) {
|
|
if (this == obj) {
|
|
return true;
|
|
} else {
|
|
return obj instanceof SchemaFile other ? Objects.equals(this.content, other.content) : false;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
return Objects.hash(this.content);
|
|
}
|
|
}
|