80 lines
2.8 KiB
C#
80 lines
2.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Xml;
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namespace RobloxFiles.XmlFormat
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{
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public class XmlRobloxFile : IRobloxFile
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{
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// IRobloxFile
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internal readonly Instance XmlContents = new Instance("Folder", "XmlRobloxFile");
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public Instance Contents => XmlContents;
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// Runtime Specific
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public readonly XmlDocument Root = new XmlDocument();
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public Dictionary<string, Instance> Instances = new Dictionary<string, Instance>();
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public void ReadFile(byte[] buffer)
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{
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try
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{
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string xml = Encoding.UTF8.GetString(buffer);
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Root.LoadXml(xml);
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}
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catch
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{
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throw new Exception("XmlRobloxFile: Could not read provided buffer as XML!");
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}
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XmlNode roblox = Root.FirstChild;
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if (roblox != null && roblox.Name == "roblox")
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{
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// Verify the version we are using.
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XmlNode version = roblox.Attributes.GetNamedItem("version");
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int schemaVersion;
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if (version == null || !int.TryParse(version.Value, out schemaVersion))
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throw new Exception("XmlRobloxFile: No version number defined!");
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else if (schemaVersion < 4)
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throw new Exception("XmlRobloxFile: Provided version must be at least 4!");
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// Process the instances.
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foreach (XmlNode child in roblox.ChildNodes)
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{
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if (child.Name == "Item")
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{
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Instance item = XmlDataReader.ReadInstance(child, ref Instances);
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item.Parent = XmlContents;
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}
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}
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// Resolve references for Ref properties.
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var refProps = Instances.Values
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.SelectMany(inst => inst.Properties)
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.Where(prop => prop.Type == PropertyType.Ref);
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foreach (Property refProp in refProps)
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{
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string refId = refProp.Value as string;
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if (Instances.ContainsKey(refId))
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{
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Instance refInst = Instances[refId];
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refProp.Value = refInst;
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}
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else if (refId != "null")
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{
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Console.WriteLine("XmlRobloxFile: Could not resolve reference for " + refProp.GetFullName());
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}
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}
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}
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else
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{
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throw new Exception("XmlRobloxFile: No `roblox` tag found!");
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}
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}
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}
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} |