private SharedFolderData GetMatchingSharedFolderData(SharingContext context, ADRecipient mailboxOwner)
{
SharedFolderDataEncryption sharedFolderDataEncryption = new SharedFolderDataEncryption(ExternalAuthentication.GetCurrent());
bool flag = false;
ExTraceGlobals.SharingTracer.TraceDebug <ADRecipient>((long)this.GetHashCode(), "{0}: Decrypting the encrypted shared folder data.", mailboxOwner);
foreach (EncryptedSharedFolderData encryptedSharedFolderData in context.EncryptedSharedFolderDataCollection)
{
SharedFolderData sharedFolderData = sharedFolderDataEncryption.TryDecrypt(encryptedSharedFolderData);
if (sharedFolderData != null)
{
if (SharingProviderHandlerExternal.TryFindMatchingRecipient(sharedFolderData, mailboxOwner) != null)
{
ExTraceGlobals.SharingTracer.TraceDebug <ADRecipient>((long)this.GetHashCode(), "{0}: Get the decrypted shared folder data.", mailboxOwner);
return(sharedFolderData);
}
flag = true;
}
}
ExTraceGlobals.SharingTracer.TraceError <ADRecipient>((long)this.GetHashCode(), "{0}: Failed to decrypt shared folder data.", mailboxOwner);
if (flag)
{
throw new InvalidExternalSharingSubscriberException();
}
throw new InvalidSharingDataException("SharedFolderData", string.Empty);
}
public EncryptionResults Encrypt(IExchangePrincipal mailboxOwner, IRecipientSession recipientSession, ExternalUserCollection externalUserCollection, ValidRecipient[] recipients, string sender, string containerClass, string folderId, IFrontEndLocator frontEndLocator)
{
SharingDataType sharingDataType = SharingDataType.FromContainerClass(containerClass);
if (sharingDataType == null || !sharingDataType.IsExternallySharable)
{
throw new ArgumentOutOfRangeException("containerClass");
}
ADUser aduser = DirectoryHelper.ReadADRecipient(mailboxOwner.MailboxInfo.MailboxGuid, mailboxOwner.MailboxInfo.IsArchive, recipientSession) as ADUser;
if (aduser == null)
{
SharedFolderDataEncryption.Tracer.TraceError <SharedFolderDataEncryption, string>((long)this.GetHashCode(), "{0}: The Active Directory user was not found. Sender={1}.", this, sender);
throw new ObjectNotFoundException(ServerStrings.ADUserNotFound);
}
ProxyAddress item = new SmtpProxyAddress(sender, false);
if (!aduser.EmailAddresses.Contains(item))
{
SharedFolderDataEncryption.Tracer.TraceError <SharedFolderDataEncryption, string>((long)this.GetHashCode(), "{0}: The SMTP address was not found in the user AD object for this mailbox. Sender={1}.", this, sender);
throw new ObjectNotFoundException(ServerStrings.ADUserNotFound);
}
SharingPolicy sharingPolicy = DirectoryHelper.ReadSharingPolicy(mailboxOwner.MailboxInfo.MailboxGuid, mailboxOwner.MailboxInfo.IsArchive, recipientSession);
SharedFolderDataEncryption.Tracer.TraceDebug <SharedFolderDataEncryption, object>((long)this.GetHashCode(), "{0}: Sharing policy to be applied to this user: {1}", this, (sharingPolicy == null) ? "<null>" : sharingPolicy.Id);
SharingPolicyAction sharingPolicyActions = SharedFolderDataEncryption.GetSharingPolicyActions(sharingDataType.StoreObjectType);
SharedFolderDataRecipient[] externalIdentities = SharedFolderDataEncryption.GetExternalIdentities(externalUserCollection, recipients);
List <InvalidRecipient> list = new List <InvalidRecipient>();
Dictionary <TokenTarget, List <SharedFolderDataRecipient> > dictionary = new Dictionary <TokenTarget, List <SharedFolderDataRecipient> >(externalIdentities.Length, SharedFolderDataEncryption.TokenTargetComparer);
for (int i = 0; i < recipients.Length; i++)
{
SharedFolderDataRecipient item2 = externalIdentities[i];
ValidRecipient validRecipient = recipients[i];
SmtpAddress smtpAddress = new SmtpAddress(validRecipient.SmtpAddress);
string domain = smtpAddress.Domain;
if (sharingPolicy == null || !sharingPolicy.IsAllowedForAnySharing(domain, sharingPolicyActions))
{
SharedFolderDataEncryption.Tracer.TraceDebug <string>((long)this.GetHashCode(), "Sharing policy does not allow user to share with domain {0}", domain);
list.Add(new InvalidRecipient(validRecipient.SmtpAddress, InvalidRecipientResponseCodeType.SystemPolicyBlocksSharingWithThisRecipient));
}
else
{
SmtpAddress smtpAddress2 = new SmtpAddress(validRecipient.SmtpAddressForEncryption);
TokenTarget tokenTarget = TargetUriResolver.Resolve(smtpAddress2.Domain, aduser.OrganizationId);
if (tokenTarget == null)
{
list.Add(new InvalidRecipient(validRecipient.SmtpAddress, InvalidRecipientResponseCodeType.RecipientOrganizationNotFederated));
}
else
{
List <SharedFolderDataRecipient> list2;
if (!dictionary.TryGetValue(tokenTarget, out list2))
{
list2 = new List <SharedFolderDataRecipient>(1);
dictionary.Add(tokenTarget, list2);
}
list2.Add(item2);
}
}
}
List <EncryptedSharedFolderData> list3 = new List <EncryptedSharedFolderData>(dictionary.Count);
SharedFolderData sharedFolderData = new SharedFolderData();
sharedFolderData.DataType = sharingDataType.ExternalName;
sharedFolderData.FolderId = folderId;
sharedFolderData.SharingUrl = this.GetSharingUrl(aduser, frontEndLocator);
sharedFolderData.FederationUri = this.externalAuthentication.TokenValidator.TargetUri.ToString();
sharedFolderData.SenderSmtpAddress = sender;
DelegationTokenRequest delegationTokenRequest = new DelegationTokenRequest
{
FederatedIdentity = aduser.GetFederatedIdentity(),
EmailAddress = aduser.GetFederatedSmtpAddress(new SmtpAddress(sender)).ToString(),
Offer = Offer.SharingInviteMessage
};
SecurityTokenService securityTokenService = this.externalAuthentication.GetSecurityTokenService(aduser.OrganizationId);
foreach (KeyValuePair <TokenTarget, List <SharedFolderDataRecipient> > keyValuePair in dictionary)
{
delegationTokenRequest.Target = keyValuePair.Key;
sharedFolderData.Recipients = keyValuePair.Value.ToArray();
try
{
RequestedToken requestedToken = securityTokenService.IssueToken(delegationTokenRequest);
list3.Add(this.Encrypt(requestedToken, sharedFolderData));
}
catch (WSTrustException ex)
{
foreach (SharedFolderDataRecipient sharedFolderDataRecipient in sharedFolderData.Recipients)
{
list.Add(new InvalidRecipient(sharedFolderDataRecipient.SmtpAddress, SharedFolderDataEncryption.GetResponseCodeFromException(ex), ex.ToString()));
}
}
}
return(new EncryptionResults(list3.ToArray(), list.ToArray()));
}
private static SharedFolderDataRecipient[] GetExternalIdentities(ExternalUserCollection externalUserCollection, ValidRecipient[] recipients)
{
SharedFolderDataRecipient[] result = Array.ConvertAll <ValidRecipient, SharedFolderDataRecipient>(recipients, (ValidRecipient recipient) => SharedFolderDataEncryption.GetExternalIdentity(externalUserCollection, recipient));
externalUserCollection.Save();
return(result);
}
protected override PerformInvitationResults InternalPerformInvitation(MailboxSession mailboxSession, SharingContext context, ValidRecipient[] recipients, IFrontEndLocator frontEndLocator)
{
ExternalAuthentication current = ExternalAuthentication.GetCurrent();
if (!current.Enabled)
{
ExTraceGlobals.SharingTracer.TraceError <string>((long)this.GetHashCode(), "{0}: The organization is not federated for external sharing.", context.InitiatorSmtpAddress);
return(new PerformInvitationResults(new InvalidSharingRecipientsException(ValidRecipient.ConvertToStringArray(recipients), new OrganizationNotFederatedException())));
}
SharedFolderDataEncryption sharedFolderDataEncryption = new SharedFolderDataEncryption(current);
string text = StoreId.StoreIdToEwsId(mailboxSession.MailboxOwner.MailboxInfo.MailboxGuid, context.FolderId);
PerformInvitationResults result;
using (ExternalUserCollection externalUsers = mailboxSession.GetExternalUsers())
{
PerformInvitationResults performInvitationResults = null;
EncryptionResults encryptionResults = null;
Exception ex = null;
try
{
encryptionResults = sharedFolderDataEncryption.Encrypt(mailboxSession.MailboxOwner, mailboxSession.GetADRecipientSession(true, ConsistencyMode.IgnoreInvalid), externalUsers, recipients, context.InitiatorSmtpAddress, context.FolderClass, text, frontEndLocator);
}
catch (UserWithoutFederatedProxyAddressException ex2)
{
ex = ex2;
}
catch (InvalidFederatedOrganizationIdException ex3)
{
ex = ex3;
}
catch (StoragePermanentException ex4)
{
ex = ex4;
}
if (ex != null)
{
ExTraceGlobals.SharingTracer.TraceError <string, Exception>((long)this.GetHashCode(), "{0}: Error occurred when trying to encrypt. Exception = {1}", context.InitiatorSmtpAddress, ex);
result = new PerformInvitationResults(new InvalidSharingRecipientsException(ValidRecipient.ConvertToStringArray(recipients), ex));
}
else
{
if (encryptionResults.InvalidRecipients != null && encryptionResults.InvalidRecipients.Length > 0)
{
InvalidSharingRecipientsException exception = new InvalidSharingRecipientsException(encryptionResults.InvalidRecipients);
if (encryptionResults.InvalidRecipients.Length == recipients.Length)
{
return(new PerformInvitationResults(exception));
}
performInvitationResults = new PerformInvitationResults(recipients, exception);
recipients = performInvitationResults.SucceededRecipients;
}
else
{
performInvitationResults = new PerformInvitationResults(recipients);
}
PermissionLevel permissionLevel = this.GetPermissionLevel(context);
FreeBusyAccess? freeBusy = this.GetFreeBusy(context);
using (FolderPermissionContext current2 = FolderPermissionContext.GetCurrent(mailboxSession, context))
{
foreach (ValidRecipient validRecipient in recipients)
{
PermissionSecurityPrincipal principal = this.CreatePermissionSecurityPrincipal(validRecipient.SmtpAddress, externalUsers);
current2.AddOrChangePermission(principal, permissionLevel, freeBusy);
ExternalUser externalUser = externalUsers.FindReachUserWithOriginalSmtpAddress(new SmtpAddress(validRecipient.SmtpAddress));
if (externalUser != null)
{
current2.RemovePermission(new PermissionSecurityPrincipal(externalUser));
}
}
}
context.FolderEwsId = text;
context.EncryptedSharedFolderDataCollection = encryptionResults.EncryptedSharedFolderDataCollection;
result = performInvitationResults;
}
}
return(result);
}