76 строки
1.9 KiB
C#
76 строки
1.9 KiB
C#
using System;
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using Mono.Linker;
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using Mono.Cecil;
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using Xamarin.Bundler;
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using Xamarin.Tuner;
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namespace Mono.Tuner {
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public class CoreRemoveSecurity : RemoveSecurity {
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protected DerivedLinkContext LinkContext {
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get {
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return (DerivedLinkContext) base.context;
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}
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}
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public override bool IsActiveFor (AssemblyDefinition assembly)
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{
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#if MMP
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// CoreRemoveSecurity can modify non-linked assemblies
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// but the conditions for this cannot happen if only the platform assembly is linked
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if (LinkContext.App.LinkMode == LinkMode.Platform)
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return false;
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#endif
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// if we run the linker then we can't ignore any assemblies since the security
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// declarations can refers to types that would not be marked (and preserved)
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// leading to invalid binaries (that even Cecil won't be able to read back)
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return true;
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}
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AssemblyDefinition Current { get; set; }
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AssemblyAction Action { get; set; }
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public override void ProcessAssembly (AssemblyDefinition assembly)
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{
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Current = assembly;
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Action = Annotations.GetAction (assembly);
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ProcessSecurityProvider (assembly);
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}
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public override void ProcessType (TypeDefinition type)
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{
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ProcessSecurityProvider (type);
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}
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public override void ProcessMethod (MethodDefinition method)
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{
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ProcessSecurityProvider (method);
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}
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void ProcessSecurityProvider (ISecurityDeclarationProvider provider)
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{
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if (!provider.HasSecurityDeclarations)
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return;
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// for non-linked code we still need to remove the security declarations,
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// if any are present, are save back the assembly. Otherwise it might become
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// impossible to decode what we save #28918.
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switch (Action) {
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case AssemblyAction.Link:
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case AssemblyAction.Save:
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break;
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default:
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Annotations.SetAction (Current, AssemblyAction.Save);
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Action = AssemblyAction.Save;
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break;
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}
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provider.SecurityDeclarations.Clear ();
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}
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}
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}
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