public bool TryGetProvider(SmtpAddress recipientAddress, ADRecipient adRecipient, IFrontEndLocator frontEndLocator, out SharingProvider provider, out DetailLevelEnumType detailLevel)
{
provider = null;
detailLevel = DetailLevelEnumType.AvailabilityOnly;
bool result;
try
{
if (this.mailboxOwner.GetConfiguration().DataStorage.XOWAConsumerSharing.Enabled)
{
provider = SharingProvider.SharingProviderConsumer;
detailLevel = DetailLevelEnumType.Editor;
result = true;
}
else
{
if (adRecipient != null)
{
if (adRecipient.IsValidSecurityPrincipal)
{
provider = SharingProvider.SharingProviderInternal;
detailLevel = DetailLevelEnumType.Editor;
return(true);
}
if (DelegateUserCollection.IsCrossPremiseDelegateEnabled(this.mailboxOwner) && (adRecipient.RecipientType == RecipientType.User || adRecipient.RecipientType == RecipientType.UserMailbox || adRecipient.RecipientType == RecipientType.MailUser))
{
provider = SharingProvider.SharingProviderInternal;
detailLevel = DetailLevelEnumType.Editor;
return(true);
}
if (adRecipient.RecipientType != RecipientType.User && adRecipient.RecipientType != RecipientType.UserMailbox && adRecipient.RecipientType != RecipientType.MailUser && adRecipient.RecipientType != RecipientType.Contact && adRecipient.RecipientType != RecipientType.MailContact)
{
return(false);
}
}
SharingPolicyDomain effectiveCalendarSharingPolicy = this.GetEffectiveCalendarSharingPolicy(recipientAddress.Domain, frontEndLocator);
this.TraceDebug("Policy found:{0}", new object[]
{
(effectiveCalendarSharingPolicy == null) ? "none" : effectiveCalendarSharingPolicy.Domain
});
int maxAllowed;
if (effectiveCalendarSharingPolicy != null && (maxAllowed = PolicyAllowedDetailLevel.GetMaxAllowed(effectiveCalendarSharingPolicy.Actions)) > 0)
{
detailLevel = (DetailLevelEnumType)maxAllowed;
if (effectiveCalendarSharingPolicy.Domain == "Anonymous")
{
provider = SharingProvider.SharingProviderPublishReach;
}
else
{
provider = SharingProvider.SharingProviderExternal;
}
}
result = (provider != null);
}
}
finally
{
this.TraceDebug("MailboxOwner:{0},Recipient:{1},RecipientType:{2},Handler={2},DetailLevel={3}", new object[]
{
this.mailboxOwner.MailboxInfo.PrimarySmtpAddress.ToString(),
recipientAddress,
(adRecipient == null) ? "none" : adRecipient.RecipientType.ToString(),
(provider == null) ? "none" : provider.Name,
detailLevel
});
}
return(result);
}
private SharingPolicyDomain GetEffectiveCalendarSharingPolicy(string recipientDomain, IFrontEndLocator frontEndLocator)
{
SharingPolicyDomain sharingPolicyDomain = null;
SharingPolicyDomain sharingPolicyDomain2 = null;
bool enabled = ExternalAuthentication.GetCurrent().Enabled;
bool flag = false;
this.TraceDebug("External authentication enabled:{0}", new object[]
{
enabled
});
foreach (SharingPolicyDomain sharingPolicyDomain3 in this.SharingPolicy.Domains)
{
if (enabled)
{
if (StringComparer.OrdinalIgnoreCase.Equals(sharingPolicyDomain3.Domain, recipientDomain))
{
this.TraceDebug("Found exact policy for domain {0}", new object[]
{
sharingPolicyDomain3.Domain
});
sharingPolicyDomain = sharingPolicyDomain3;
}
else if (sharingPolicyDomain == null && StringComparer.OrdinalIgnoreCase.Equals(sharingPolicyDomain3.Domain, "*"))
{
this.TraceDebug("Found asterisk policy", new object[0]);
sharingPolicyDomain = sharingPolicyDomain3;
flag = true;
}
}
if (StringComparer.OrdinalIgnoreCase.Equals(sharingPolicyDomain3.Domain, "Anonymous"))
{
if (OwaAnonymousVdirLocater.Instance.IsPublishingAvailable(this.mailboxOwner, frontEndLocator))
{
this.TraceDebug("Found anonymous policy", new object[0]);
sharingPolicyDomain2 = sharingPolicyDomain3;
}
else
{
this.TraceDebug("Found anonymous policy but publishing is not allowed", new object[0]);
}
}
}
if (flag && sharingPolicyDomain2 != null && PolicyAllowedDetailLevel.GetMaxAllowed(sharingPolicyDomain.Actions) <= PolicyAllowedDetailLevel.GetMaxAllowed(sharingPolicyDomain2.Actions))
{
this.TraceDebug("Override AsteriskPolicy with anonymous policy", new object[0]);
sharingPolicyDomain = null;
}
if (sharingPolicyDomain != null)
{
if (TargetUriResolver.Resolve(recipientDomain, this.mailboxOwner.MailboxInfo.OrganizationId) != null)
{
return(sharingPolicyDomain);
}
this.TraceDebug("Target domain '{0}' is not federated", new object[]
{
recipientDomain
});
}
return(sharingPolicyDomain2);
}