Simple book exploit - Location rip.ethereal.impl.modules.exploit.CheatBookSploit;

@Override
private void sendBookToServer(boolean p_146462_1_) throws IOException
    {
        if (this.bookIsUnsigned && this.bookIsModified)
        {
            if (this.bookPages != null)
            {
                String var2;

                while (this.bookPages.tagCount() > 1)
                {
                    var2 = this.bookPages.getStringTagAt(this.bookPages.tagCount() - 1);

                    if (var2.length() != 0)
                    {
                        break;
                    }

                    this.bookPages.removeTag(this.bookPages.tagCount() - 1);
                }

                if (this.bookObj.hasTagCompound())
                {
                    NBTTagCompound var6 = this.bookObj.getTagCompound();
                    var6.setTag("pages", this.bookPages);
                }
                else
                {
                    this.bookObj.setTagInfo("pages", this.bookPages);
                }

                var2 = "MC|BEdit";

                if (p_146462_1_)
                {
                    var2 = "MC|BSign";
                    this.bookObj.setTagInfo("author", new NBTTagString(this.editingPlayer.getName()));
                    this.bookObj.setTagInfo("title", new NBTTagString(this.bookTitle.trim()));

                    for (int var3 = 0; var3 < this.bookPages.tagCount(); ++var3)
                    {
                        String var4 = this.bookPages.getStringTagAt(var3);
                        ChatComponentText var5 = new ChatComponentText(var4);
                        var4 = IChatComponent.Serializer.componentToJson(var5);
                        this.bookPages.set(var3, new NBTTagString(var4));
                    }

                    this.bookObj.setItem(Items.written_book);
                }

                PacketBuffer var7 = new PacketBuffer(Unpooled.buffer());
                var7.writeItemStackToBuffer(this.bookObj);
                this.mc.getNetHandler().addToSendQueue(new C17PacketCustomPayload(var2, var7));
            }
        }
    }