void ApplyInfo(IDnlibDef context, ProtectionSettings settings, IEnumerable <ProtectionSettingsInfo> infos, ApplyInfoType type)
{
foreach (var info in infos)
{
if (info.Condition != null && !(bool)info.Condition.Evaluate(context))
{
continue;
}
if (info.Condition == null && info.Exclude)
{
if (type == ApplyInfoType.CurrentInfoOnly ||
(type == ApplyInfoType.CurrentInfoInherits && info.ApplyToMember))
{
settings.Clear();
}
}
if (!string.IsNullOrEmpty(info.Settings))
{
if ((type == ApplyInfoType.ParentInfo && info.Condition != null && info.ApplyToMember) ||
type == ApplyInfoType.CurrentInfoOnly ||
(type == ApplyInfoType.CurrentInfoInherits && info.Condition == null && info.ApplyToMember))
{
parser.ParseProtectionString(settings, info.Settings);
}
}
}
}
/// <summary>
/// Fills the protection settings with the specified preset.
/// </summary>
/// <param name="preset">The preset.</param>
/// <param name="settings">The settings.</param>
void FillPreset(ProtectionPreset preset, ProtectionSettings settings)
{
foreach (Protection prot in protections.Values)
{
if (prot.Preset != ProtectionPreset.None && prot.Preset <= preset && !settings.ContainsKey(prot))
{
settings.Add(prot, new Dictionary <string, string>());
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ProtectionSettings" /> class
/// from an existing <see cref="ProtectionSettings" />.
/// </summary>
/// <param name="settings">The settings to copy from.</param>
public ProtectionSettings(ProtectionSettings settings)
{
if (settings == null)
{
return;
}
foreach (var i in settings)
{
Add(i.Key, new Dictionary <string, string>(i.Value));
}
}
public IDisposable Apply(IDnlibDef target, IEnumerable <ProtectionSettingsInfo> infos)
{
ProtectionSettings settings;
if (this.settings == null)
{
settings = new ProtectionSettings();
}
else
{
settings = new ProtectionSettings(this.settings);
}
var infoArray = infos.ToArray();
if (stack.Count > 0)
{
foreach (var i in stack.Reverse())
{
ApplyInfo(target, settings, i.Item2, ApplyInfoType.ParentInfo);
}
}
IDisposable result;
if (infoArray.Length != 0)
{
var originalSettings = this.settings;
// the settings that would apply to members
ApplyInfo(target, settings, infoArray, ApplyInfoType.CurrentInfoInherits);
this.settings = new ProtectionSettings(settings);
// the settings that would apply to itself
ApplyInfo(target, settings, infoArray, ApplyInfoType.CurrentInfoOnly);
stack.Push(Tuple.Create(originalSettings, infoArray));
result = new PopHolder(this);
}
else
{
result = null;
}
ProtectionParameters.SetParameters(context, target, settings);
return(result);
}
/// <summary>
/// Returns only the targets with the specified type and used by specified component.
/// </summary>
/// <param name="context">The working context.</param>
/// <param name="targets">List of targets.</param>
/// <param name="phase">The component phase.</param>
/// <returns>Filtered targets.</returns>
static IList <IDnlibDef> Filter(DotProtectContext context, IList <IDnlibDef> targets, ProtectionPhase phase)
{
ProtectionTargets targetType = phase.Targets;
IEnumerable <IDnlibDef> filter = targets;
if ((targetType & ProtectionTargets.Modules) == 0)
{
filter = filter.Where(def => !(def is ModuleDef));
}
if ((targetType & ProtectionTargets.Types) == 0)
{
filter = filter.Where(def => !(def is TypeDef));
}
if ((targetType & ProtectionTargets.Methods) == 0)
{
filter = filter.Where(def => !(def is MethodDef));
}
if ((targetType & ProtectionTargets.Fields) == 0)
{
filter = filter.Where(def => !(def is FieldDef));
}
if ((targetType & ProtectionTargets.Properties) == 0)
{
filter = filter.Where(def => !(def is PropertyDef));
}
if ((targetType & ProtectionTargets.Events) == 0)
{
filter = filter.Where(def => !(def is EventDef));
}
if (phase.ProcessAll)
{
return(filter.ToList());
}
return(filter.Where(def => {
ProtectionSettings parameters = ProtectionParameters.GetParameters(context, def);
Debug.Assert(parameters != null);
if (parameters == null)
{
context.Logger.ErrorFormat("'{0}' not marked for obfuscation, possibly a bug.", def);
throw new DotProtectception(null);
}
return parameters.ContainsKey(phase.Parent);
}).ToList());
}
/// <summary>
/// Sets the protection parameters of the specified target.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="target">The protection target.</param>
/// <param name="parameters">The parameters.</param>
public static void SetParameters(
DotProtectContext context, IDnlibDef target, ProtectionSettings parameters)
{
context.Annotations.Set(target, ParametersKey, parameters);
}
void Pop()
{
settings = stack.Pop().Item1;
}
public void ParsePackerString(string str, out Packer packer, out Dictionary <string, string> packerParams)
{
packer = null;
packerParams = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
if (str == null)
{
return;
}
this.str = str;
index = 0;
var state = ParseState.ReadItemName;
var buffer = new StringBuilder();
var ret = new ProtectionSettings();
while (state != ParseState.End)
{
switch (state)
{
case ParseState.ReadItemName:
ReadId(buffer);
var packerId = buffer.ToString();
if (!items.Contains(packerId))
{
throw new KeyNotFoundException("Cannot find packer with id '" + packerId + "'.");
}
packer = (Packer)items[packerId];
buffer.Length = 0;
if (IsEnd() || Peek() == ';')
{
state = ParseState.EndItem;
}
else if (Peek() == '(')
{
Next();
state = ParseState.ReadParam;
}
else
{
throw new ArgumentException("Unexpected character in ReadItemName state at " + index + ".");
}
break;
case ParseState.ReadParam:
string paramName, paramValue;
if (!ReadId(buffer))
{
throw new ArgumentException("Unexpected end of string in ReadParam state.");
}
paramName = buffer.ToString();
buffer.Length = 0;
Expect('=');
if (!ReadId(buffer))
{
throw new ArgumentException("Unexpected end of string in ReadParam state.");
}
paramValue = buffer.ToString();
buffer.Length = 0;
packerParams.Add(paramName, paramValue);
if (Peek() == ',')
{
Next();
state = ParseState.ReadParam;
}
else if (Peek() == ')')
{
Next();
state = ParseState.EndItem;
}
else
{
throw new ArgumentException("Unexpected character in ReadParam state at " + index + ".");
}
break;
case ParseState.EndItem:
if (IsEnd())
{
state = ParseState.End;
}
else
{
Expect(';');
if (!IsEnd())
{
throw new ArgumentException("Unexpected character in EndItem state at " + index + ".");
}
state = ParseState.End;
}
break;
}
}
}
/// <summary>
/// Applies the rules to the target definition.
/// </summary>
/// <param name="context">The working context.</param>
/// <param name="target">The target definition.</param>
/// <param name="rules">The rules.</param>
/// <param name="baseSettings">The base settings.</param>
protected void ApplyRules(DotProtectContext context, IDnlibDef target, Rules rules, ProtectionSettings baseSettings = null)
{
var ret = baseSettings == null ? new ProtectionSettings() : new ProtectionSettings(baseSettings);
foreach (var i in rules)
{
if (!(bool)i.Value.Evaluate(target))
{
continue;
}
if (!i.Key.Inherit)
{
ret.Clear();
}
FillPreset(i.Key.Preset, ret);
foreach (var prot in i.Key)
{
if (prot.Action == SettingItemAction.Add)
{
ret[protections[prot.Id]] = new Dictionary <string, string>(prot, StringComparer.OrdinalIgnoreCase);
}
else
{
ret.Remove(protections[prot.Id]);
}
}
}
ProtectionParameters.SetParameters(context, target, ret);
}