internal static void SetupProtocolProviders(List <IProtocolProvider> protocolProviders)
{
ProtocolProviders = new Dictionary <string, CachedProtocolProvider>(StringComparer.OrdinalIgnoreCase);
protocolProviders = protocolProviders ?? new List <IProtocolProvider>();
protocolProviders.Add(new DefaultProtocolProvider());
protocolProviders.ForEach(provider =>
{
ValidateProtocolProvider(provider);
var cachedProvider = GetCachedProtocolProvider(provider);
if (provider is DefaultProtocolProvider)
{
DefaultProtocolProvider = cachedProvider;
ProtocolProviders[""] = cachedProvider;
}
var protocolId = provider.ProtocolIdentifier;
if (ProtocolProviders.TryGetValue(protocolId, out var existing))
{
if (existing.GetType() == provider.GetType())
{
throw new InvalidProtocolProviderException(
$"A protocol provider of type '{existing.GetType()}' has already been added");
}
throw new InvalidProtocolProviderException(
$"Protocol identifier '{protocolId}' already claimed by a protocol provider of type '{existing.GetType()}'");
}
ProtocolProviders[protocolId] = cachedProvider;
});
}
private static CachedProtocolProvider GetCachedProtocolProvider(IProtocolProvider provider)
{
var cProvider = new CachedProtocolProvider(provider);
var contentTypeProviders = provider.GetContentTypeProviders()?.ToList();
contentTypeProviders?.ForEach(contentTypeProvider =>
{
if (contentTypeProvider.CanRead)
{
contentTypeProvider.MatchStrings?.ForEach(mimeType => cProvider.InputMimeBindings[mimeType] = contentTypeProvider);
}
if (contentTypeProvider.CanWrite)
{
contentTypeProvider.MatchStrings?.ForEach(mimeType => cProvider.OutputMimeBindings[mimeType] = contentTypeProvider);
}
});
switch (provider.ExternalContentTypeProviderSettings)
{
case ExternalContentTypeProviderSettings.AllowAll:
ContentTypeController.InputContentTypeProviders.Where(p => !cProvider.InputMimeBindings.ContainsKey(p.Key))
.ForEach(cProvider.InputMimeBindings.Add);
ContentTypeController.OutputContentTypeProviders.Where(p => !cProvider.OutputMimeBindings.ContainsKey(p.Key))
.ForEach(cProvider.OutputMimeBindings.Add);
break;
case ExternalContentTypeProviderSettings.AllowInput:
ContentTypeController.InputContentTypeProviders.Where(p => !cProvider.InputMimeBindings.ContainsKey(p.Key))
.ForEach(cProvider.InputMimeBindings.Add);
break;
case ExternalContentTypeProviderSettings.AllowOutput:
ContentTypeController.OutputContentTypeProviders.Where(p => !cProvider.OutputMimeBindings.ContainsKey(p.Key))
.ForEach(cProvider.OutputMimeBindings.Add);
break;
}
return(cProvider);
}