private ExternalUser ApplyPermission(MailboxSession mailboxSession, SmtpAddress smtpAddress, SharingContext context)
{
ExternalUser externalUser = null;
ExternalUser externalUser2;
using (ExternalUserCollection externalUsers = mailboxSession.GetExternalUsers())
{
externalUser2 = externalUsers.FindReachUserWithOriginalSmtpAddress(smtpAddress);
externalUser = externalUsers.FindFederatedUserWithOriginalSmtpAddress(smtpAddress);
if (externalUser2 == null)
{
externalUser2 = externalUsers.AddReachUser(smtpAddress);
externalUsers.Save();
}
}
using (FolderPermissionContext current = FolderPermissionContext.GetCurrent(mailboxSession, context))
{
FreeBusyAccess freeBusy = this.GetFreeBusy(context);
PermissionSecurityPrincipal principal = new PermissionSecurityPrincipal(externalUser2);
PermissionLevel permissionLevel = (context.SharingDetail == SharingContextDetailLevel.FullDetails) ? PermissionLevel.Reviewer : PermissionLevel.None;
current.AddOrChangePermission(principal, permissionLevel, new FreeBusyAccess?(freeBusy));
if (externalUser != null)
{
current.RemovePermission(new PermissionSecurityPrincipal(externalUser));
}
}
return(externalUser2);
}
protected override void InternalPerformRevocation(MailboxSession mailboxSession, SharingContext context)
{
using (FolderPermissionContext current = FolderPermissionContext.GetCurrent(mailboxSession, context))
{
ValidRecipient recipient = new ValidRecipient(context.InitiatorSmtpAddress, null);
PermissionSecurityPrincipal principal = this.CreatePermissionSecurityPrincipal(recipient, mailboxSession.MailboxOwner);
current.RemovePermission(principal);
}
}
protected override void InternalPerformRevocation(MailboxSession mailboxSession, SharingContext context)
{
using (FolderPermissionContext current = FolderPermissionContext.GetCurrent(mailboxSession, context))
{
using (ExternalUserCollection externalUsers = mailboxSession.GetExternalUsers())
{
PermissionSecurityPrincipal permissionSecurityPrincipal = this.CreatePermissionSecurityPrincipal(context.InitiatorSmtpAddress, externalUsers);
if (permissionSecurityPrincipal != null)
{
current.RemovePermission(permissionSecurityPrincipal);
}
}
}
}
protected override PerformInvitationResults InternalPerformInvitation(MailboxSession mailboxSession, SharingContext context, ValidRecipient[] recipients, IFrontEndLocator frontEndLocator)
{
PermissionLevel permissionLevel = this.GetPermissionLevel(context);
FreeBusyAccess? freeBusy = this.GetFreeBusy(context);
using (FolderPermissionContext current = FolderPermissionContext.GetCurrent(mailboxSession, context))
{
foreach (ValidRecipient recipient in recipients)
{
PermissionSecurityPrincipal principal = this.CreatePermissionSecurityPrincipal(recipient, mailboxSession.MailboxOwner);
current.AddOrChangePermission(principal, permissionLevel, freeBusy);
}
}
return(new PerformInvitationResults(recipients));
}
internal static FolderPermissionContext GetCurrent(MailboxSession mailboxSession, SharingContext sharingContext)
{
FolderPermissionContext folderPermissionContext;
if (!FolderPermissionContext.activeContexts.ContainsKey(sharingContext))
{
ExTraceGlobals.SharingTracer.TraceDebug <IExchangePrincipal, SharingContext>(0L, "{0}: Create new FolderPermissionContext for SharingContext {1}.", mailboxSession.MailboxOwner, sharingContext);
folderPermissionContext = new FolderPermissionContext(mailboxSession, sharingContext);
}
else
{
ExTraceGlobals.SharingTracer.TraceDebug <IExchangePrincipal, SharingContext>(0L, "{0}: Get existing FolderPermissionContext for SharingContext {1}.", mailboxSession.MailboxOwner, sharingContext);
folderPermissionContext = FolderPermissionContext.activeContexts[sharingContext];
}
folderPermissionContext.refCount++;
folderPermissionContext.enabled = true;
return(folderPermissionContext);
}
private void PerformInvitation()
{
Dictionary <SharingProvider, ValidRecipient[]> dictionary = new Dictionary <SharingProvider, ValidRecipient[]>();
List <ValidRecipient> list = new List <ValidRecipient>();
SharingProvider fallbackSharingProvider = this.SharingContext.FallbackSharingProvider;
using (FolderPermissionContext current = FolderPermissionContext.GetCurrent(this.MailboxSession, this.SharingContext))
{
bool flag = false;
try
{
foreach (KeyValuePair <SharingProvider, CheckRecipientsResults> keyValuePair in this.SharingContext.AvailableSharingProviders)
{
SharingProvider key = keyValuePair.Key;
CheckRecipientsResults value = keyValuePair.Value;
if (this.FallbackEnabled && key == fallbackSharingProvider)
{
if (value != null)
{
list.AddRange(value.ValidRecipients);
}
}
else if (value != null)
{
PerformInvitationResults performInvitationResults = key.PerformInvitation(this.MailboxSession, this.SharingContext, value.ValidRecipients, this.FrontEndLocator);
ExTraceGlobals.SharingTracer.TraceDebug <IExchangePrincipal, SharingProvider, PerformInvitationResults>((long)this.GetHashCode(), "{0}: Performed invitation by provider {1}. Result = {2}", this.MailboxSession.MailboxOwner, key, performInvitationResults);
if (performInvitationResults.Result == PerformInvitationResultType.Failed || performInvitationResults.Result == PerformInvitationResultType.PartiallySuccess)
{
if (!this.FallbackEnabled)
{
StoreObjectId folderId = this.SharingContext.FolderId;
InvalidSharingRecipientsResolution invalidSharingRecipientsResolution;
if (!this.CanUseFallback)
{
invalidSharingRecipientsResolution = new InvalidSharingRecipientsResolution(folderId);
}
else
{
using (Folder folder = Folder.Bind(this.MailboxSession, folderId))
{
this.SharingContext.PopulateUrls(folder);
}
invalidSharingRecipientsResolution = new InvalidSharingRecipientsResolution(this.BrowseUrl, this.ICalUrl);
}
ExTraceGlobals.SharingTracer.TraceError <IExchangePrincipal, InvalidSharingRecipientsResolution>((long)this.GetHashCode(), "{0}: No fall back for these invalid recipients. Resolution = {1}", this.MailboxSession.MailboxOwner, invalidSharingRecipientsResolution);
throw new InvalidSharingRecipientsException(performInvitationResults.FailedRecipients, invalidSharingRecipientsResolution);
}
ValidRecipient[] array = Array.ConvertAll <InvalidRecipient, ValidRecipient>(performInvitationResults.FailedRecipients, (InvalidRecipient invalidRecipient) => new ValidRecipient(invalidRecipient.SmtpAddress, null));
ExTraceGlobals.SharingTracer.TraceDebug <IExchangePrincipal, SharingProvider, int>((long)this.GetHashCode(), "{0}: Fall back on provider {1} for these {2} failed recipients.", this.MailboxSession.MailboxOwner, fallbackSharingProvider, array.Length);
list.AddRange(array);
dictionary.Add(key, performInvitationResults.SucceededRecipients);
}
}
}
if (this.FallbackEnabled)
{
foreach (KeyValuePair <SharingProvider, ValidRecipient[]> keyValuePair2 in dictionary)
{
SharingProvider key2 = keyValuePair2.Key;
ValidRecipient[] value2 = keyValuePair2.Value;
this.SharingContext.AvailableSharingProviders[key2] = new CheckRecipientsResults(value2);
}
this.SharingContext.AvailableSharingProviders[fallbackSharingProvider] = new CheckRecipientsResults(list.ToArray());
PerformInvitationResults performInvitationResults2 = fallbackSharingProvider.PerformInvitation(this.MailboxSession, this.SharingContext, list.ToArray(), this.FrontEndLocator);
ExTraceGlobals.SharingTracer.TraceDebug <IExchangePrincipal, SharingProvider, PerformInvitationResults>((long)this.GetHashCode(), "{0}: Performed invitation by fallback provider {1}. Result = {2}", this.MailboxSession.MailboxOwner, fallbackSharingProvider, performInvitationResults2);
if (performInvitationResults2.Result == PerformInvitationResultType.Failed || performInvitationResults2.Result == PerformInvitationResultType.PartiallySuccess)
{
throw new InvalidOperationException("The fallback provider should never fail.");
}
}
flag = true;
}
finally
{
if (!flag)
{
current.Disable();
}
}
}
}
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);
}
