// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking at the legacy configuration file
// returns null if not found
//
static RestExtensionMethodInfo GetFromLegacyConfiguration(string extensionAlias, string methodName)
{
const string ExtensionXPath = "/RestExtensions/ext [@alias='{0}']";
const string MethodXPath = "./permission [@method='{0}']";
var config = (Configuration.BaseRestSection)System.Configuration.ConfigurationManager.GetSection("BaseRestExtensions");
if (config == null)
{
return(null); // does not exist
}
// fixme - at the moment we reload the config file each time
// we have to support live edits of the config file for backward compatibility reason
// so if we want to cache, we'd also need to implement a watcher on the config file...
var doc = new XmlDocument();
doc.Load(IOHelper.MapPath(SystemFiles.RestextensionsConfig));
var eNode = doc.SelectSingleNode(string.Format(ExtensionXPath, extensionAlias));
if (eNode == null)
{
return(null); // does not exist
}
var mNode = eNode.SelectSingleNode(string.Format(MethodXPath, methodName));
if (mNode == null)
{
return(null); // does not exist
}
string assemblyName = eNode.Attributes["assembly"].Value;
var assembly = Assembly.Load(assemblyName);
string typeName = eNode.Attributes["type"].Value;
Type type = assembly.GetType(typeName);
if (type == null)
{
return(null); // does not exist
}
var method = type.GetMethod(methodName);
if (method == null)
{
return(null); // does not exist
}
var allowAll = GetAttribute(mNode, "allowAll");
var returnXml = GetAttribute(mNode, "returnXml");
var info = new RestExtensionMethodInfo(allowAll != null && allowAll.ToLower() == "true",
GetAttribute(mNode, "allowGroup"), GetAttribute(mNode, "allowType"), GetAttribute(mNode, "allowMember"),
returnXml == null || returnXml.ToLower() != "false",
method);
return(info);
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromAttribute(string extensionAlias, string methodName)
{
// here we can cache because any change would trigger an app restart
string cacheKey = extensionAlias + "." + methodName;
lock (_cache)
{
// if it's in the cache, return
if (_cache.ContainsKey(cacheKey))
{
return(_cache[cacheKey]);
}
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
//
// note: the extension may be implemented by more than one class
var extensions = PluginManager.Current.ResolveRestExtensions()
.Where(type => type.GetCustomAttribute <RestExtensionAttribute>(false).Alias == extensionAlias);
RestExtensionMethodInfo info = null;
foreach (var extension in extensions) // foreach classes with extension alias
{
var method = extension.GetMethod(methodName);
if (method == null)
{
continue; // not implementing the method = ignore
}
var attribute = method.GetCustomAttributes(typeof(RestExtensionMethodAttribute), false).Cast <RestExtensionMethodAttribute>().SingleOrDefault();
if (attribute == null)
{
continue; // method has not attribute = ignore
}
// got it!
info = new RestExtensionMethodInfo(attribute.AllowAll,
attribute.AllowGroup, attribute.AllowType, attribute.AllowMember,
attribute.ReturnXml,
method);
// cache
lock (_cache)
{
_cache[cacheKey] = info;
}
// got it, no need to look any further
break;
}
return(info);
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromAttribute(string extensionAlias, string methodName)
{
// here we can cache because any change would trigger an app restart
string cacheKey = extensionAlias + "." + methodName;
lock (_cache)
{
// if it's in the cache, return
if (_cache.ContainsKey(cacheKey))
{
return(_cache[cacheKey]);
}
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
var extensions = PluginManager.Current.ResolveRestExtensions();
var extension = extensions
.SingleOrDefault(type => type.GetCustomAttribute <RestExtensionAttribute>(false).Alias == extensionAlias);
RestExtensionMethodInfo info = null;
if (extension != null)
{
var method = extension.GetMethod(methodName);
if (method != null)
{
var attribute = method.GetCustomAttributes(typeof(RestExtensionMethodAttribute), false).Cast <RestExtensionMethodAttribute>().SingleOrDefault();
if (attribute != null)
{
info = new RestExtensionMethodInfo(attribute.AllowAll,
attribute.AllowGroup, attribute.AllowType, attribute.AllowMember,
attribute.ReturnXml,
method);
// looks good, cache
lock (_cache)
{
_cache[cacheKey] = info;
}
}
}
}
return(info);
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking at the configuration file
// returns null if not found
//
static RestExtensionMethodInfo GetFromConfiguration(string extensionAlias, string methodName)
{
var config = (Configuration.BaseRestSection)System.Configuration.ConfigurationManager.GetSection("BaseRestExtensions");
if (config == null)
{
return(null); // does not exist
}
Configuration.ExtensionElement configExtension = config.Items[extensionAlias];
if (configExtension == null)
{
return(null); // does not exist
}
Configuration.MethodElement configMethod = configExtension[methodName];
if (configMethod == null)
{
return(null); // does not exist
}
MethodInfo method;
try
{
var parts = configExtension.Type.Split(',');
if (parts.Length > 2)
{
throw new Exception(string.Format("Failed to load extension '{0}', invalid type."));
}
var assembly = parts.Length == 1 ? Assembly.GetExecutingAssembly() : Assembly.Load(parts[1]);
var type = assembly.GetType(parts[0]);
method = type.GetMethod(methodName);
}
catch (Exception e)
{
throw new Exception(string.Format("Failed to load extension '{0}', see inner exception.", configExtension.Type), e);
}
if (method == null)
{
return(null); // does not exist
}
var info = new RestExtensionMethodInfo(configMethod.AllowAll,
configMethod.AllowGroup, configMethod.AllowType, configMethod.AllowMember,
configMethod.ReturnXml,
method);
return(info);
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromAttribute(string extensionAlias, string methodName, int paramsCount)
{
// here we can cache because any change would trigger an app restart
var cacheKey = string.Format("{0}.{1}[{2}]", extensionAlias, methodName, paramsCount);
lock (Cache)
{
// if it's in the cache, return
if (Cache.ContainsKey(cacheKey))
{
return(Cache[cacheKey]);
}
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
//
// note: the extension may be implemented by more than one class
var extensions = PluginManager.Current.ResolveRestExtensions()
.Where(type => type.GetCustomAttribute <RestExtensionAttribute>(false).Alias == extensionAlias);
RestExtensionMethodInfo info = null;
foreach (var extension in extensions) // foreach classes with extension alias
{
var methods = extension.GetMethods()
.Where(m => m.Name == methodName)
.Where(m => m.GetParameters().Count() == paramsCount)
.ToArray();
if (methods.Length == 0)
{
continue; // not implementing the method = ignore
}
if (methods.Length > 1)
{
throw new Exception(string.Format("Method \"{0}\" has many overloads with same number of parameters.", methodName));
}
var method = methods[0];
if (!method.IsPublic || !method.IsStatic)
{
throw new Exception(string.Format("Method \"{0}\" has to be public and static.", methodName));
}
var attribute = method.GetCustomAttributes(typeof(RestExtensionMethodAttribute), false).Cast <RestExtensionMethodAttribute>().SingleOrDefault();
if (attribute == null)
{
continue; // method has not attribute = ignore
}
// got it!
info = new RestExtensionMethodInfo(attribute.AllowAll,
attribute.AllowGroup, attribute.AllowType, attribute.AllowMember,
attribute.ReturnXml,
method);
// cache
lock (Cache)
{
Cache[cacheKey] = info;
}
// got it, no need to look any further
break;
}
return(info);
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the legacy attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromLegacyAttribute(string extensionAlias, string methodName)
{
// here we can cache because any change would trigger an app restart anyway
var cacheKey = extensionAlias + "." + methodName;
lock (Cache)
{
// if it's in the cache, return
if (Cache.ContainsKey(cacheKey))
{
return(Cache[cacheKey]);
}
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
// note: add #pragma - yes it's obsolete but we still want to support it for the time being
var extensions = PluginManager.Current.ResolveLegacyRestExtensions()
#pragma warning disable 612,618
.Where(type => type.GetCustomAttribute <global::umbraco.presentation.umbracobase.RestExtension>(false).GetAlias() == extensionAlias);
#pragma warning restore 612,618
RestExtensionMethodInfo info = null;
foreach (var extension in extensions) // foreach classes with extension alias
{
var method = extension.GetMethod(methodName);
if (method == null)
{
continue; // not implementing the method = ignore
}
#pragma warning disable 612,618
var attribute = method.GetCustomAttributes(typeof(global::umbraco.presentation.umbracobase.RestExtensionMethod), false).Cast <global::umbraco.presentation.umbracobase.RestExtensionMethod>().SingleOrDefault();
#pragma warning restore 612,618
if (attribute == null)
{
continue; // method has not attribute = ignore
}
// got it!
info = new RestExtensionMethodInfo(attribute.GetAllowAll(),
attribute.GetAllowGroup(), attribute.GetAllowType(), attribute.GetAllowMember(),
attribute.returnXml,
method);
// cache
lock (Cache)
{
Cache[cacheKey] = info;
}
// got it, no need to look any further
break;
}
return(info);
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking at the configuration file
// returns null if not found
//
static RestExtensionMethodInfo GetFromConfiguration(string extensionAlias, string methodName, int paramsCount)
{
var config = Core.Configuration.UmbracoSettings.For <Configuration.BaseRestSection>();
var configExtension = config.Items[extensionAlias];
if (configExtension == null)
{
return(null); // does not exist
}
var configMethod = configExtension[methodName];
if (configMethod == null)
{
return(null); // does not exist
}
MethodInfo method = null;
try
{
var parts = configExtension.Type.Split(',');
if (parts.Length > 2)
{
throw new Exception(string.Format("Failed to load extension '{0}', invalid type.", configExtension.Type));
}
var assembly = parts.Length == 1 ? Assembly.GetExecutingAssembly() : Assembly.Load(parts[1]);
var type = assembly.GetType(parts[0]);
if (type == null)
{
throw new Exception(string.Format("Could not get type \"{0}\".", parts[0]));
}
var methods = type.GetMethods()
.Where(m => m.Name == methodName)
.Where(m => m.GetParameters().Count() == paramsCount)
.ToArray();
if (methods.Length > 1)
{
throw new Exception(string.Format("Method \"{0}\" has many overloads with same number of parameters.", methodName));
}
if (methods.Length > 0)
{
method = methods[0];
if (!method.IsPublic || !method.IsStatic)
{
throw new Exception(string.Format("Method \"{0}\" has to be public and static.", methodName));
}
}
}
catch (Exception e)
{
throw new Exception(string.Format("Failed to load extension '{0}', see inner exception.", configExtension.Type), e);
}
if (method == null)
{
return(null); // does not exist
}
var info = new RestExtensionMethodInfo(configMethod.AllowAll,
configMethod.AllowGroup, configMethod.AllowType, configMethod.AllowMember,
configMethod.ReturnXml,
method);
return(info);
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking at the legacy configuration file
// returns null if not found
//
static RestExtensionMethodInfo GetFromLegacyConfiguration(string extensionAlias, string methodName)
{
const string extensionXPath = "/RestExtensions/ext [@alias='{0}']";
const string methodXPath = "./permission [@method='{0}']";
var config = (Configuration.BaseRestSection)System.Configuration.ConfigurationManager.GetSection("BaseRestExtensions");
if (config == null)
return null; // does not exist
// note - at the moment we reload the config file each time
// we have to support live edits of the config file for backward compatibility reason
// so if we want to cache, we'd also need to implement a watcher on the config file...
var doc = new XmlDocument();
doc.Load(IOHelper.MapPath(SystemFiles.RestextensionsConfig));
var eNode = doc.SelectSingleNode(string.Format(extensionXPath, extensionAlias));
if (eNode == null)
return null; // does not exist
var mNode = eNode.SelectSingleNode(string.Format(methodXPath, methodName));
if (mNode == null)
return null; // does not exist
var attributes = eNode.Attributes;
if (attributes == null)
return null; // has no attributes
var assemblyName = attributes["assembly"].Value;
var assembly = Assembly.Load(assemblyName);
var typeName = attributes["type"].Value;
var type = assembly.GetType(typeName);
if (type == null)
return null; // does not exist
var method = type.GetMethod(methodName);
if (method == null)
return null; // does not exist
var allowAll = GetAttribute(mNode, "allowAll");
var returnXml = GetAttribute(mNode, "returnXml");
var info = new RestExtensionMethodInfo(allowAll != null && allowAll.ToLower() == "true",
GetAttribute(mNode, "allowGroup"), GetAttribute(mNode, "allowType"), GetAttribute(mNode, "allowMember"),
returnXml == null || returnXml.ToLower() != "false",
method);
return info;
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromAttribute(string extensionAlias, string methodName, int paramsCount)
{
// here we can cache because any change would trigger an app restart
var cacheKey = string.Format("{0}.{1}[{2}]", extensionAlias, methodName, paramsCount);
lock (Cache)
{
// if it's in the cache, return
if (Cache.ContainsKey(cacheKey))
return Cache[cacheKey];
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
//
// note: the extension may be implemented by more than one class
var extensions = PluginManager.Current.ResolveRestExtensions()
.Where(type => type.GetCustomAttribute<RestExtensionAttribute>(false).Alias == extensionAlias);
RestExtensionMethodInfo info = null;
foreach (var extension in extensions) // foreach classes with extension alias
{
var methods = extension.GetMethods()
.Where(m => m.Name == methodName)
.Where(m => m.GetParameters().Count() == paramsCount)
.ToArray();
if (methods.Length == 0) continue; // not implementing the method = ignore
if (methods.Length > 1)
throw new Exception(string.Format("Method \"{0}\" has many overloads with same number of parameters.", methodName));
var method = methods[0];
if (!method.IsPublic || !method.IsStatic)
throw new Exception(string.Format("Method \"{0}\" has to be public and static.", methodName));
var attribute = method.GetCustomAttributes(typeof(RestExtensionMethodAttribute), false).Cast<RestExtensionMethodAttribute>().SingleOrDefault();
if (attribute == null) continue; // method has not attribute = ignore
// got it!
info = new RestExtensionMethodInfo(attribute.AllowAll,
attribute.AllowGroup, attribute.AllowType, attribute.AllowMember,
attribute.ReturnXml,
method);
// cache
lock (Cache)
{
Cache[cacheKey] = info;
}
// got it, no need to look any further
break;
}
return info;
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the legacy attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromLegacyAttribute(string extensionAlias, string methodName)
{
// here we can cache because any change would trigger an app restart anyway
var cacheKey = extensionAlias + "." + methodName;
lock (Cache)
{
// if it's in the cache, return
if (Cache.ContainsKey(cacheKey))
return Cache[cacheKey];
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
// note: add #pragma - yes it's obsolete but we still want to support it for the time being
var extensions = PluginManager.Current.ResolveLegacyRestExtensions()
#pragma warning disable 612,618
.Where(type => type.GetCustomAttribute<global::umbraco.presentation.umbracobase.RestExtension>(false).GetAlias() == extensionAlias);
#pragma warning restore 612,618
RestExtensionMethodInfo info = null;
foreach (var extension in extensions) // foreach classes with extension alias
{
var method = extension.GetMethod(methodName);
if (method == null) continue; // not implementing the method = ignore
#pragma warning disable 612,618
var attribute = method.GetCustomAttributes(typeof(global::umbraco.presentation.umbracobase.RestExtensionMethod), false).Cast<global::umbraco.presentation.umbracobase.RestExtensionMethod>().SingleOrDefault();
#pragma warning restore 612,618
if (attribute == null) continue; // method has not attribute = ignore
// got it!
info = new RestExtensionMethodInfo(attribute.GetAllowAll(),
attribute.GetAllowGroup(), attribute.GetAllowType(), attribute.GetAllowMember(),
attribute.returnXml,
method);
// cache
lock (Cache)
{
Cache[cacheKey] = info;
}
// got it, no need to look any further
break;
}
return info;
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking at the configuration file
// returns null if not found
//
static RestExtensionMethodInfo GetFromConfiguration(string extensionAlias, string methodName, int paramsCount)
{
var config = Core.Configuration.UmbracoSettings.For<Configuration.BaseRestSection>();
var configExtension = config.Items[extensionAlias];
if (configExtension == null)
return null; // does not exist
var configMethod = configExtension[methodName];
if (configMethod == null)
return null; // does not exist
MethodInfo method = null;
try
{
var parts = configExtension.Type.Split(',');
if (parts.Length > 2)
throw new Exception(string.Format("Failed to load extension '{0}', invalid type.", configExtension.Type));
var assembly = parts.Length == 1 ? Assembly.GetExecutingAssembly() : Assembly.Load(parts[1]);
var type = assembly.GetType(parts[0]);
if (type == null)
throw new Exception(string.Format("Could not get type \"{0}\".", parts[0]));
var methods = type.GetMethods()
.Where(m => m.Name == methodName)
.Where(m => m.GetParameters().Count() == paramsCount)
.ToArray();
if (methods.Length > 1)
throw new Exception(string.Format("Method \"{0}\" has many overloads with same number of parameters.", methodName));
if (methods.Length > 0)
{
method = methods[0];
if (!method.IsPublic || !method.IsStatic)
throw new Exception(string.Format("Method \"{0}\" has to be public and static.", methodName));
}
}
catch (Exception e)
{
throw new Exception(string.Format("Failed to load extension '{0}', see inner exception.", configExtension.Type), e);
}
if (method == null)
return null; // does not exist
var info = new RestExtensionMethodInfo(configMethod.AllowAll,
configMethod.AllowGroup, configMethod.AllowType, configMethod.AllowMember,
configMethod.ReturnXml,
method);
return info;
}
public void ProcessRequest(HttpContext context)
{
string url = context.Request.RawUrl;
// sanitize and split the url
url = url.Substring(BaseUrl.Length);
if (url.ToLower().Contains(".aspx"))
{
url = url.Substring(0, url.IndexOf(".aspx", StringComparison.OrdinalIgnoreCase));
}
if (url.ToLower().Contains("?"))
{
url = url.Substring(0, url.IndexOf("?", StringComparison.OrdinalIgnoreCase));
}
var urlParts = url.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
// by default, return xml content
context.Response.ContentType = "text/xml";
// ensure that we have a valid request ie /base/library/method/[parameters].aspx
if (urlParts.Length < 2)
{
context.Response.Write("<error>Invalid request, missing parts.</error>");
context.Response.StatusCode = 400;
context.Response.StatusDescription = "Bad Request";
context.Response.End();
return;
}
var extensionAlias = urlParts[0];
var methodName = urlParts[1];
var paramsCount = urlParts.Length - 2;
var method = RestExtensionMethodInfo.GetMethod(extensionAlias, methodName, paramsCount);
if (!method.Exists)
{
context.Response.StatusCode = 500;
context.Response.StatusDescription = "Internal Server Error";
context.Response.Output.Write("<error>Extension or method not found.</error>");
}
else if (!method.CanBeInvokedByCurrentMember)
{
context.Response.StatusCode = 500;
context.Response.StatusDescription = "Internal Server Error";
context.Response.Output.Write("<error>Permission denied.</error>");
}
else
{
if (!method.ReturnXml)
{
context.Response.ContentType = "text/html";
}
TrySetCulture();
var result = method.Invoke(urlParts.Skip(2).ToArray());
if (result.Length >= 7 && result.Substring(0, 7) == "<error>")
{
context.Response.StatusCode = 500;
context.Response.StatusDescription = "Internal Server Error";
}
context.Response.Output.Write(result);
}
context.Response.End();
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromAttribute(string extensionAlias, string methodName)
{
// here we can cache because any change would trigger an app restart
string cacheKey = extensionAlias + "." + methodName;
lock (_cache)
{
// if it's in the cache, return
if (_cache.ContainsKey(cacheKey))
return _cache[cacheKey];
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
//
// note: the extension may be implemented by more than one class
var extensions = PluginManager.Current.ResolveRestExtensions()
.Where(type => type.GetCustomAttribute<RestExtensionAttribute>(false).Alias == extensionAlias);
RestExtensionMethodInfo info = null;
foreach (var extension in extensions) // foreach classes with extension alias
{
var method = extension.GetMethod(methodName);
if (method == null) continue; // not implementing the method = ignore
var attribute = method.GetCustomAttributes(typeof(RestExtensionMethodAttribute), false).Cast<RestExtensionMethodAttribute>().SingleOrDefault();
if (attribute == null) continue; // method has not attribute = ignore
// got it!
info = new RestExtensionMethodInfo(attribute.AllowAll,
attribute.AllowGroup, attribute.AllowType, attribute.AllowMember,
attribute.ReturnXml,
method);
// cache
lock (_cache)
{
_cache[cacheKey] = info;
}
// got it, no need to look any further
break;
}
return info;
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking at the configuration file
// returns null if not found
//
static RestExtensionMethodInfo GetFromConfiguration(string extensionAlias, string methodName)
{
var config = (Configuration.BaseRestSection)System.Configuration.ConfigurationManager.GetSection("BaseRestExtensions");
if (config == null)
return null; // does not exist
Configuration.ExtensionElement configExtension = config.Items[extensionAlias];
if (configExtension == null)
return null; // does not exist
Configuration.MethodElement configMethod = configExtension[methodName];
if (configMethod == null)
return null; // does not exist
MethodInfo method;
try
{
var parts = configExtension.Type.Split(',');
if (parts.Length > 2)
throw new Exception(string.Format("Failed to load extension '{0}', invalid type."));
var assembly = parts.Length == 1 ? Assembly.GetExecutingAssembly() : Assembly.Load(parts[1]);
var type = assembly.GetType(parts[0]);
method = type.GetMethod(methodName);
}
catch (Exception e)
{
throw new Exception(string.Format("Failed to load extension '{0}', see inner exception.", configExtension.Type), e);
}
if (method == null)
return null; // does not exist
var info = new RestExtensionMethodInfo(configMethod.AllowAll,
configMethod.AllowGroup, configMethod.AllowType, configMethod.AllowMember,
configMethod.ReturnXml,
method);
return info;
}
// gets a RestExtensionMethodInfo matching extensionAlias and methodName
// by looking for the attributes
// returns null if not found
//
static RestExtensionMethodInfo GetFromAttribute(string extensionAlias, string methodName)
{
// here we can cache because any change would trigger an app restart
string cacheKey = extensionAlias + "." + methodName;
lock (_cache)
{
// if it's in the cache, return
if (_cache.ContainsKey(cacheKey))
return _cache[cacheKey];
}
// find an extension with that alias, then find a method with that name,
// which has been properly marked with the attribute, and use the attribute
// properties to setup a RestExtensionMethodInfo
var extensions = PluginManager.Current.ResolveRestExtensions();
var extension = extensions
.SingleOrDefault(type => type.GetCustomAttribute<RestExtensionAttribute>(false).Alias == extensionAlias);
RestExtensionMethodInfo info = null;
if (extension != null)
{
var method = extension.GetMethod(methodName);
if (method != null)
{
var attribute = method.GetCustomAttributes(typeof(RestExtensionMethodAttribute), false).Cast<RestExtensionMethodAttribute>().SingleOrDefault();
if (attribute != null)
{
info = new RestExtensionMethodInfo(attribute.AllowAll,
attribute.AllowGroup, attribute.AllowType, attribute.AllowMember,
attribute.ReturnXml,
method);
// looks good, cache
lock (_cache)
{
_cache[cacheKey] = info;
}
}
}
}
return info;
}
