我有一个来自客户的大型代码库，该客户的开发人员拒绝提供代码。
尽管我在关注
时遇到了问题，但我已经对其进行了反编译。我正在使用dnSpy，Just Decompile，dotPeek来反编译代码。我试图谷歌，也查看了Stackoverflow，但找不到任何可以回答我的东西。如果有人能指出正确的方向，我将不胜感激。
更新：我已粘贴完整功能
public virtual string ParseDealerInventoryLink(string toParseLinkData)
{
string pattern = "{([^}]+)}";
string text = toParseLinkData;
RegexOptions options = RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled;
if (this != null && !string.IsNullOrWhiteSpace(text))
{
object dyn = new PropertyBag(this);
Regex regex = new Regex(pattern, options);
Dictionary<string, DealerInventoryLinkPatternParam> linkPatternMap = DealerInventoryFeedUrlParser.GetLinkPatternParamValueMap();
text = regex.Replace(text, delegate(Match mat)
{
if (mat.Success && mat.Groups.Count > 0)
{
Group group = mat.Groups[mat.Groups.Count - 1];
if (group.Success)
{
string value = group.Value;
if (linkPatternMap.ContainsKey(value))
{
if (DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site1 == null)
{
DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site1 = CallSite<Func<CallSite, object, string>>.Create(Microsoft.CSharp.RuntimeBinder.Binder.Convert(CSharpBinderFlags.None, typeof(string), typeof(DealerInventoryFeedUrlParser)));
}
Func<CallSite, object, string> target = DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site1.Target;
CallSite <>p__Site = DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site1;
if (DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site2 == null)
{
DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site2 = CallSite<Func<CallSite, Type, object, object>>.Create(Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(CSharpBinderFlags.None, "ToString", null, typeof(DealerInventoryFeedUrlParser), new CSharpArgumentInfo[]
{
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.UseCompileTimeType | CSharpArgumentInfoFlags.IsStaticType, null),
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.None, null)
}));
}
Func<CallSite, Type, object, object> target2 = DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site2.Target;
CallSite <>p__Site2 = DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site2;
Type typeFromHandle = typeof(Convert);
if (DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site3 == null)
{
DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site3 = CallSite<Func<CallSite, object, string, object>>.Create(Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(CSharpBinderFlags.None, typeof(DealerInventoryFeedUrlParser), new CSharpArgumentInfo[]
{
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.None, null),
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.UseCompileTimeType, null)
}));
}
return target(<>p__Site, target2(<>p__Site2, typeFromHandle, DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site3.Target(DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site3, dyn, linkPatternMap[value].ColumnName)));
}
}
}
return mat.Value;
});
}
return text;
}
答案 0 :(得分：0)
function onSuccess(result) {
var GetTotal;
if (result) {
GetTotal = function(result) {
var totBal = 0;
var str = 'R';
for (var i = 0; i < result.length; i++) {
totBal += result[i].Price;
}
str += totBal.toFixed(2);
return str;
};
var span = document.getElementById("Total");
span.innerHTML = GetTotal(result);
}
}
在ILSpy中进行编译然后反编译时会生成以下内容：
class DealerInventoryFeedUrlParser
{
void ParseDealerInventoryLink()
{
dynamic input = new object();
string link = input;
}
}
...我将其归类为“足够接近”。
我没有特别的理由选择class DealerInventoryFeedUrlParser
{
private void ParseDealerInventoryLink()
{
object input = new object();
if (<>o__0.<>p__0 == null)
{
<>o__0.<>p__0 = CallSite<Func<CallSite, object, string>>.Create(Binder.Convert(CSharpBinderFlags.None, typeof(string), typeof(DealerInventoryFeedUrlParser)));
}
string link = <>o__0.<>p__0.Target(<>o__0.<>p__0, input);
}
}
作为分配给new object()的值。这可能是一个整数，字符串-任何东西。 dynamic初始化代码看起来相同。 CallSite中的T2总是 对象，因此除非您查看反编译源中CallSite<Func<T1, T2, TResult>>的位置，否则您将不知道真正的输入值是什么。是实际使用的。
编辑
现在已经发布了完整的源代码，让我们尝试将各个部分放在一起：
DealerInventoryFeedUrlParser.<ParseDealerInventoryLink>o__SiteContainer0.<>p__Site1 class DealerInventoryFeedUrlParser
{
static Dictionary<string, DealerInventoryLinkPatternParam> GetLinkPatternParamValueMap() => throw new NotImplementedException();
public virtual string ParseDealerInventoryLink(string toParseLinkData)
{
string pattern = "{([^}]+)}";
string text = toParseLinkData;
RegexOptions options = RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled;
if (/*this != null &&*/ !string.IsNullOrWhiteSpace(text))
{
dynamic dyn = new PropertyBag(this);
Regex regex = new Regex(pattern, options);
Dictionary<string, DealerInventoryLinkPatternParam> linkPatternMap = GetLinkPatternParamValueMap();
text = regex.Replace(text, delegate (Match mat)
{
if (mat.Success && mat.Groups.Count > 0)
{
Group group = mat.Groups[mat.Groups.Count - 1];
if (group.Success)
{
string value = group.Value;
if (linkPatternMap.ContainsKey(value))
{
return Convert.ToString(dyn[linkPatternMap[value].ColumnName]);
}
}
}
return mat.Value;
});
}
return text;
}
}
class PropertyBag
{
private readonly object Owner;
public PropertyBag(object obj)
{
Owner = obj;
}
}
class DealerInventoryLinkPatternParam
{
public string ColumnName { get; set; }
}
编译/反编译：
ParseDealerInventoryLink您可以替换编译器生成的名称，以检查是否一切正确。根据我对public virtual string ParseDealerInventoryLink(string toParseLinkData)
{
string pattern = "{([^}]+)}";
string text = toParseLinkData;
RegexOptions options = RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Compiled;
if (!string.IsNullOrWhiteSpace(text))
{
dynamic dyn = new PropertyBag(this);
Regex regex = new Regex(pattern, options);
Dictionary<string, DealerInventoryLinkPatternParam> linkPatternMap = DealerInventoryFeedUrlParser.GetLinkPatternParamValueMap();
text = regex.Replace(text, delegate(Match mat)
{
if (mat.Success && mat.Groups.Count > 0)
{
Group group = mat.Groups[mat.Groups.Count - 1];
if (group.Success)
{
string value = group.Value;
if (linkPatternMap.ContainsKey(value))
{
if (<>o__1.<>p__2 == null)
{
<>o__1.<>p__2 = CallSite<Func<CallSite, object, string>>.Create(Binder.Convert(CSharpBinderFlags.None, typeof(string), typeof(DealerInventoryFeedUrlParser)));
}
Func<CallSite, object, string> target = <>o__1.<>p__2.Target;
CallSite<Func<CallSite, object, string>> <>p__ = <>o__1.<>p__2;
if (<>o__1.<>p__1 == null)
{
<>o__1.<>p__1 = CallSite<Func<CallSite, Type, object, object>>.Create(Binder.InvokeMember(CSharpBinderFlags.None, "ToString", null, typeof(DealerInventoryFeedUrlParser), new CSharpArgumentInfo[2]
{
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.UseCompileTimeType | CSharpArgumentInfoFlags.IsStaticType, null),
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.None, null)
}));
}
Func<CallSite, Type, object, object> target2 = <>o__1.<>p__1.Target;
CallSite<Func<CallSite, Type, object, object>> <>p__2 = <>o__1.<>p__1;
Type typeFromHandle = typeof(Convert);
if (<>o__1.<>p__0 == null)
{
<>o__1.<>p__0 = CallSite<Func<CallSite, object, string, object>>.Create(Binder.GetIndex(CSharpBinderFlags.None, typeof(DealerInventoryFeedUrlParser), new CSharpArgumentInfo[2]
{
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.None, null),
CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.UseCompileTimeType, null)
}));
}
return target(<>p__, target2(<>p__2, typeFromHandle, <>o__1.<>p__0.Target(<>o__1.<>p__0, dyn, linkPatternMap[value].ColumnName)));
}
}
}
return mat.Value;
});
}
return text;
}
的有限理解，我所做的只是一个诚实但非常非常快的尝试，可以猜测我在看什么。现在，您可以检查所有内容，验证正确性并在必要时进行修复。
P.S。 dynamic校验位使我有些困惑。必须是反编译器的怪癖。我已将其注释掉，因为它似乎并不重要。
P.P.S。反编译和重新编译二进制文件是一个非常肮脏且容易出错的过程。如果您需要进行的更改很小，请考虑研究.NET二进制修补程序（Google it），即使用ILSpy + Reflexil。
祝你好运。