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fix(core): Converts book packets (#413)

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- [X] Splits out BaseBook
- [X] Converts book packets
- [X] Makes FixHtml faster
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Kamron Batman 2021-01-16 18:49:53 -08:00 • committed by GitHub
parent 3d7c4583a8
commit a146955f6c
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8 changed files with 427 additions and 228 deletions
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205
Projects/UOContent/Items/Books/BaseBook.cs
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@ -1,46 +1,12 @@
using System;
using System.Collections.Generic;
using System.IO;
using Server.Buffers;
using Server.ContextMenus;
using Server.Gumps;
using Server.Multis;
using Server.Network;
using Server.Text;
namespace Server.Items
{
public class BookPageInfo
{
public BookPageInfo() => Lines = Array.Empty<string>();
public BookPageInfo(params string[] lines) => Lines = lines;
public BookPageInfo(IGenericReader reader)
{
var length = reader.ReadInt();
Lines = new string[length];
for (var i = 0; i < Lines.Length; ++i)
{
Lines[i] = Utility.Intern(reader.ReadString());
}
}
public string[] Lines { get; set; }
public void Serialize(IGenericWriter writer)
{
writer.Write(Lines.Length);
for (var i = 0; i < Lines.Length; ++i)
{
writer.Write(Lines[i]);
}
}
}
public class BaseBook : Item, ISecurable
{
private string m_Author;
@ -356,121 +322,8 @@ namespace Server.Items
Author = from.Name;
}
from.Send(new BookHeader(from, this));
from.Send(new BookPageDetails(this));
}
public static void Initialize()
{
IncomingPackets.Register(0xD4, 0, true, HeaderChange);
IncomingPackets.Register(0x66, 0, true, ContentChange);
IncomingPackets.Register(0x93, 99, true, OldHeaderChange);
}
public static void OldHeaderChange(NetState state, CircularBufferReader reader, ref int packetLength)
{
var from = state.Mobile;
if (!(World.FindItem(reader.ReadUInt32()) is BaseBook book) || !book.Writable ||
!from.InRange(book.GetWorldLocation(), 1) || !book.IsAccessibleTo(from))
{
return;
}
reader.Seek(4, SeekOrigin.Current); // Skip flags and page count
var title = reader.ReadAsciiSafe(60);
var author = reader.ReadAsciiSafe(30);
book.Title = Utility.FixHtml(title);
book.Author = Utility.FixHtml(author);
}
public static void HeaderChange(NetState state, CircularBufferReader reader, ref int packetLength)
{
var from = state.Mobile;
if (!(World.FindItem(reader.ReadUInt32()) is BaseBook book) || !book.Writable ||
!from.InRange(book.GetWorldLocation(), 1) || !book.IsAccessibleTo(from))
{
return;
}
reader.Seek(4, SeekOrigin.Current); // Skip flags and page count
int titleLength = reader.ReadUInt16();
if (titleLength > 60)
{
return;
}
var title = reader.ReadUTF8Safe(titleLength);
int authorLength = reader.ReadUInt16();
if (authorLength > 30)
{
return;
}
var author = reader.ReadUTF8Safe(authorLength);
book.Title = Utility.FixHtml(title);
book.Author = Utility.FixHtml(author);
}
public static void ContentChange(NetState state, CircularBufferReader reader, ref int packetLength)
{
var from = state.Mobile;
if (!(World.FindItem(reader.ReadUInt32()) is BaseBook book) || !book.Writable ||
!from.InRange(book.GetWorldLocation(), 1) || !book.IsAccessibleTo(from))
{
return;
}
int pageCount = reader.ReadUInt16();
if (pageCount > book.PagesCount)
{
return;
}
for (var i = 0; i < pageCount; ++i)
{
int index = reader.ReadUInt16();
if (index >= 1 && index <= book.PagesCount)
{
--index;
int lineCount = reader.ReadUInt16();
if (lineCount <= 8)
{
var lines = new string[lineCount];
for (var j = 0; j < lineCount; ++j)
{
if ((lines[j] = reader.ReadUTF8Safe()).Length >= 80)
{
return;
}
}
book.Pages[index].Lines = lines;
}
else
{
return;
}
}
else
{
return;
}
}
from.NetState.SendBookCover(from, this);
from.NetState.SendBookContent(this);
}
[Flags]
@ -483,58 +336,4 @@ namespace Server.Items
Content = 0x08
}
}
public sealed class BookPageDetails : Packet
{
public BookPageDetails(BaseBook book) : base(0x66)
{
EnsureCapacity(256);
Stream.Write(book.Serial);
Stream.Write((ushort)book.PagesCount);
for (var i = 0; i < book.PagesCount; ++i)
{
var page = book.Pages[i];
Stream.Write((ushort)(i + 1));
Stream.Write((ushort)page.Lines.Length);
for (var j = 0; j < page.Lines.Length; ++j)
{
var buffer = page.Lines[j].GetBytesUtf8();
Stream.Write(buffer, 0, buffer.Length);
Stream.Write((byte)0);
}
}
}
}
public sealed class BookHeader : Packet
{
public BookHeader(Mobile from, BaseBook book) : base(0xD4)
{
var title = book.Title ?? "";
var author = book.Author ?? "";
var titleBuffer = title.GetBytesUtf8();
var authorBuffer = author.GetBytesUtf8();
EnsureCapacity(15 + titleBuffer.Length + authorBuffer.Length);
Stream.Write(book.Serial);
Stream.Write(true);
Stream.Write(book.Writable && from.InRange(book.GetWorldLocation(), 1));
Stream.Write((ushort)book.PagesCount);
Stream.Write((ushort)(titleBuffer.Length + 1));
Stream.Write(titleBuffer, 0, titleBuffer.Length);
Stream.Write((byte)0); // terminate
Stream.Write((ushort)(authorBuffer.Length + 1));
Stream.Write(authorBuffer, 0, authorBuffer.Length);
Stream.Write((byte)0); // terminate
}
}
}