private void EnforceSharingPolicy(MailboxSession mailboxSession, ICollection <MapiAclTableRestriction.ExternalUserPermission> externalUserPermissions)
{
Util.ThrowOnNullArgument(mailboxSession, "mailboxSession");
if (externalUserPermissions == null || externalUserPermissions.Count == 0)
{
return;
}
List <RightsNotAllowedRecipient> list = new List <RightsNotAllowedRecipient>(externalUserPermissions.Count);
SharingPolicy sharingPolicy = null;
foreach (MapiAclTableRestriction.ExternalUserPermission externalUserPermission in externalUserPermissions)
{
if (sharingPolicy == null)
{
IMailboxInfo mailboxInfo = mailboxSession.MailboxOwner.MailboxInfo;
sharingPolicy = DirectoryHelper.ReadSharingPolicy(mailboxInfo.MailboxGuid, mailboxInfo.IsArchive, mailboxSession.GetADRecipientSession(true, ConsistencyMode.IgnoreInvalid));
if (sharingPolicy == null)
{
ExTraceGlobals.StorageTracer.TraceDebug <IExchangePrincipal>((long)this.GetHashCode(), "{0}: No policy assigned means no external sharing is allowed for this user.", mailboxSession.MailboxOwner);
throw new NotAllowedExternalSharingByPolicyException();
}
}
if (!sharingPolicy.Enabled)
{
ExTraceGlobals.StorageTracer.TraceDebug <IExchangePrincipal>((long)this.GetHashCode(), "{0}: A disabled policy means no external sharing is allowed for this user.", mailboxSession.MailboxOwner);
throw new NotAllowedExternalSharingByPolicyException();
}
SharingPolicyAction sharingPolicyAction = externalUserPermission.Principal.ExternalUser.IsReachUser ? sharingPolicy.GetAllowedForAnonymousCalendarSharing() : sharingPolicy.GetAllowed(externalUserPermission.Principal.ExternalUser.SmtpAddress.Domain);
if (sharingPolicyAction == (SharingPolicyAction)0)
{
ExTraceGlobals.StorageTracer.TraceDebug <IExchangePrincipal, PermissionSecurityPrincipal>((long)this.GetHashCode(), "{0}: Policy does not allow granting permissions to {1}.", mailboxSession.MailboxOwner, externalUserPermission.Principal);
throw new PrincipalNotAllowedByPolicyException(externalUserPermission.Principal);
}
MemberRights allowed = PolicyAllowedMemberRights.GetAllowed(sharingPolicyAction, this.FolderInfo.StoreObjectType);
MemberRights memberRights = ~allowed & externalUserPermission.MemberRights;
if (memberRights != MemberRights.None)
{
ExTraceGlobals.StorageTracer.TraceDebug((long)this.GetHashCode(), "{0}: Policy does not allow granting permission {1} to {2} on {3} folder '{4}'.", new object[]
{
mailboxSession.MailboxOwner,
memberRights,
externalUserPermission.Principal,
this.FolderInfo.StoreObjectType,
this.FolderInfo.DisplayName
});
list.Add(new RightsNotAllowedRecipient(externalUserPermission.Principal, memberRights));
}
}
if (list.Count > 0)
{
throw new RightsNotAllowedByPolicyException(list.ToArray(), this.FolderInfo.StoreObjectType, this.FolderInfo.DisplayName);
}
}
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()));
}