private static FreeBusyPermissionLevel FromInternalClient(InternalClientContext internalClientContext, RawSecurityDescriptor securityDescriptor, FreeBusyQuery freeBusyQuery)
{
if (internalClientContext.ClientSecurityContext == null)
{
FreeBusyPermission.SecurityTracer.TraceDebug <object, EmailAddress>(0L, "{0}: Caller {1} has no ClientSecurityContext, using default context as 'everyone'.", TraceContext.Get(), freeBusyQuery.Email);
return(FreeBusyPermission.AccessCheck(securityDescriptor, ClientSecurityContext.FreeBusyPermissionDefaultClientSecurityContext));
}
if (!Configuration.UseDisabledAccount || VariantConfiguration.GetSnapshot(MachineSettingsContext.Local, null, null).Global.MultiTenancy.Enabled)
{
return(FreeBusyPermission.GetPermissionLevel(internalClientContext.ClientSecurityContext, freeBusyQuery, securityDescriptor));
}
FreeBusyPermission.SecurityTracer.TraceDebug <object, InternalClientContext>(0L, "{0}: Creating a munged security context for caller {1}.", TraceContext.Get(), internalClientContext);
ClientSecurityContext clientSecurityContext = null;
try
{
clientSecurityContext = new SlaveAccountTokenMunger().MungeToken(internalClientContext.ClientSecurityContext, OrganizationId.ForestWideOrgId);
return(FreeBusyPermission.GetPermissionLevel(clientSecurityContext, freeBusyQuery, securityDescriptor));
}
catch (TokenMungingException arg)
{
FreeBusyPermission.SecurityTracer.TraceError <object, InternalClientContext, TokenMungingException>(0L, "{0}: Unable to get the munged token for Caller {1}, error {2}, using the client context supplied.", TraceContext.Get(), internalClientContext, arg);
}
finally
{
if (clientSecurityContext != null)
{
clientSecurityContext.Dispose();
}
}
return(FreeBusyPermission.GetPermissionLevel(internalClientContext.ClientSecurityContext, freeBusyQuery, securityDescriptor));
}
public static FreeBusyPermissionLevel DetermineAllowedAccess(ClientContext clientContext, MailboxSession session, CalendarFolder calendarFolder, FreeBusyQuery freeBusyQuery, bool defaultFreeBusyOnly)
{
RawSecurityDescriptor rawSecurityDescriptor = calendarFolder.TryGetProperty(CalendarFolderSchema.FreeBusySecurityDescriptor) as RawSecurityDescriptor;
if (rawSecurityDescriptor == null)
{
FreeBusyPermission.SecurityTracer.TraceDebug <object, CalendarFolder>(0L, "{0}: Unable to retrieve FreeBusySecurityDescriptor from folder {1}. Using None as permission level.", TraceContext.Get(), calendarFolder);
return(FreeBusyPermissionLevel.None);
}
if (FreeBusyPermission.SecurityTracer.IsTraceEnabled(TraceType.DebugTrace))
{
string sddlForm = rawSecurityDescriptor.GetSddlForm(AccessControlSections.All);
FreeBusyPermission.SecurityTracer.TraceDebug <object, EmailAddress, string>(0L, "{0}: The SDDL form of calendar folder security descriptor of mailbox {1} is: {2}.", TraceContext.Get(), freeBusyQuery.Email, sddlForm);
}
if (defaultFreeBusyOnly)
{
FreeBusyPermission.SecurityTracer.TraceDebug(0L, "{0}: Using DefaultClientSecurityContext because of defaultFreeBusyOnly is set.", new object[]
{
TraceContext.Get()
});
return(FreeBusyPermission.AccessCheck(rawSecurityDescriptor, ClientSecurityContext.FreeBusyPermissionDefaultClientSecurityContext));
}
InternalClientContext internalClientContext = clientContext as InternalClientContext;
if (internalClientContext != null)
{
return(FreeBusyPermission.FromInternalClient(internalClientContext, rawSecurityDescriptor, freeBusyQuery));
}
ExternalClientContext externalClientContext = clientContext as ExternalClientContext;
return(FreeBusyPermission.FromExternalClient(externalClientContext, session, rawSecurityDescriptor, freeBusyQuery));
}
private static FreeBusyPermissionLevel GetPermissionLevel(ClientSecurityContext clientSecurityContext, FreeBusyQuery freeBusyQuery, RawSecurityDescriptor securityDescriptor)
{
if (FreeBusyPermission.CallerHasFullPermission(clientSecurityContext, freeBusyQuery))
{
FreeBusyPermission.SecurityTracer.TraceDebug <object, ClientSecurityContext, EmailAddress>(0L, "{0}: Caller {1} has owner access on mailbox {2}.", TraceContext.Get(), clientSecurityContext, freeBusyQuery.Email);
return(FreeBusyPermissionLevel.Owner);
}
return(FreeBusyPermission.AccessCheck(securityDescriptor, clientSecurityContext));
}
private static FreeBusyPermissionLevel FromExternalClient(ExternalClientContext externalClientContext, MailboxSession mailboxSession, RawSecurityDescriptor securityDescriptor, FreeBusyQuery freeBusyQuery)
{
FreeBusyPermissionLevel val = FreeBusyPermission.FromExternalClientWithPersonalRelationship(externalClientContext, mailboxSession, securityDescriptor, freeBusyQuery);
FreeBusyPermissionLevel val2 = FreeBusyPermission.FromExternalClientWithOrganizationalRelationship(externalClientContext, mailboxSession, securityDescriptor, freeBusyQuery);
FreeBusyPermissionLevel freeBusyPermissionLevel = (FreeBusyPermissionLevel)Math.Max((int)val2, (int)val);
FreeBusyPermission.SecurityTracer.TraceDebug <object, SmtpAddress, FreeBusyPermissionLevel>(0L, "{0}: permission level for {1} is {2}", TraceContext.Get(), externalClientContext.EmailAddress, freeBusyPermissionLevel);
return(freeBusyPermissionLevel);
}
private static FreeBusyPermissionLevel FromExternalClientWithOrganizationalRelationship(ExternalClientContext externalClientContext, MailboxSession mailboxSession, RawSecurityDescriptor securityDescriptor, FreeBusyQuery freeBusyQuery)
{
OrganizationRelationship organizationRelationship = FreeBusyPermission.GetOrganizationRelationship(mailboxSession.MailboxOwner.MailboxInfo.OrganizationId, externalClientContext.EmailAddress.Domain);
if (organizationRelationship == null)
{
FreeBusyPermission.SecurityTracer.TraceDebug <object, SmtpAddress, string>(0L, "{0}: No organization relationship for {1} with organization id {2}", TraceContext.Get(), externalClientContext.EmailAddress, (mailboxSession.MailboxOwner.MailboxInfo.OrganizationId == null) ? "<null>" : mailboxSession.MailboxOwner.MailboxInfo.OrganizationId.ToString());
return(FreeBusyPermissionLevel.None);
}
FreeBusyPermissionLevel freeBusyPermissionLevel = FreeBusyPermissionLevel.Detail;
if (organizationRelationship != null)
{
freeBusyPermissionLevel = FreeBusyPermission.GetMaximumFreeBusyPermissionLevel(organizationRelationship);
if (freeBusyPermissionLevel == FreeBusyPermissionLevel.None)
{
FreeBusyPermission.SecurityTracer.TraceDebug <object, ADObjectId>(0L, "{0}: OrganizationRelationship {1} restricts permission level to None.", TraceContext.Get(), organizationRelationship.Id);
return(FreeBusyPermissionLevel.None);
}
}
FreeBusyPermissionLevel freeBusyPermissionLevel2 = FreeBusyPermission.AccessCheck(securityDescriptor, ClientSecurityContext.FreeBusyPermissionDefaultClientSecurityContext);
if (freeBusyPermissionLevel2 == FreeBusyPermissionLevel.None)
{
return(FreeBusyPermissionLevel.None);
}
if (freeBusyPermissionLevel2 > freeBusyPermissionLevel)
{
FreeBusyPermission.SecurityTracer.TraceDebug(0L, "{0}: OrganizationRelationship {1} restricts permission level to {2}. Lowering permission from {3}.", new object[]
{
TraceContext.Get(),
organizationRelationship.Id,
freeBusyPermissionLevel,
freeBusyPermissionLevel2
});
freeBusyPermissionLevel2 = freeBusyPermissionLevel;
}
if (!FreeBusyPermission.IsAllowedByFreeBusyAccessScope(freeBusyQuery, organizationRelationship))
{
freeBusyPermissionLevel2 = FreeBusyPermissionLevel.None;
}
return(freeBusyPermissionLevel2);
}
private static FreeBusyPermissionLevel FromExternalClientWithPersonalRelationship(ExternalClientContext externalClientContext, MailboxSession mailboxSession, RawSecurityDescriptor securityDescriptor, FreeBusyQuery freeBusyQuery)
{
string externalIdentity = FreeBusyPermission.GetExternalIdentity(externalClientContext, mailboxSession);
if (externalIdentity == null)
{
FreeBusyPermission.SecurityTracer.TraceDebug <object, SmtpAddress, IExchangePrincipal>(0L, "{0}: No external identity for {1} in mailbox {2}.", TraceContext.Get(), externalClientContext.EmailAddress, mailboxSession.MailboxOwner);
return(FreeBusyPermissionLevel.None);
}
ISecurityAccessToken securityAccessToken = new SecurityAccessToken
{
UserSid = externalIdentity,
GroupSids = ClientSecurityContext.DisabledEveryoneOnlySidStringAndAttributesArray
};
FreeBusyPermissionLevel result;
using (ClientSecurityContext clientSecurityContext = new ClientSecurityContext(securityAccessToken, AuthzFlags.AuthzSkipTokenGroups))
{
result = FreeBusyPermission.AccessCheck(securityDescriptor, clientSecurityContext);
}
return(result);
}
private FreeBusyQueryResult InternalGetCalendarData(FreeBusyQuery freeBusyQuery, MailboxSession session)
{
FreeBusyViewType freeBusyViewType = FreeBusyViewType.None;
CalendarEvent[] calendarEventArray = null;
string mergedFreeBusy = null;
WorkingHours workingHours = null;
EmailAddress email = freeBusyQuery.Email;
StoreObjectId associatedFolderId = freeBusyQuery.RecipientData.AssociatedFolderId;
StoreObjectId defaultFolderId = session.GetDefaultFolderId(DefaultFolderType.Calendar);
if (defaultFolderId == null)
{
return(this.HandleException(email, new NoCalendarException()));
}
if (associatedFolderId != null && !associatedFolderId.Equals(defaultFolderId))
{
return(this.HandleException(email, new NotDefaultCalendarException()));
}
session.ExTimeZone = this.clientContext.TimeZone;
using (CalendarFolder calendarFolder = CalendarFolder.Bind(session, DefaultFolderType.Calendar, CalendarQuery.CalendarFolderQueryProps))
{
TimeSpan t = this.deadline - DateTime.UtcNow;
if (t <= TimeSpan.Zero)
{
return(this.HandleException(email, new TimeoutExpiredException("Determine-Allowed-Access")));
}
FreeBusyPermissionLevel freeBusyPermissionLevel = FreeBusyPermission.DetermineAllowedAccess(this.clientContext, session, calendarFolder, freeBusyQuery, this.defaultFreeBusyOnly);
CalendarQuery.CalendarViewTracer.TraceDebug((long)this.GetHashCode(), "{0}: AccessCheck returned {1} for user {2} on mailbox {3}", new object[]
{
TraceContext.Get(),
freeBusyPermissionLevel,
this.clientContext,
email
});
if (freeBusyPermissionLevel == FreeBusyPermissionLevel.None)
{
CalendarQuery.CalendarViewTracer.TraceDebug <object, EmailAddress>((long)this.GetHashCode(), "{0}: No mailbox data will be returned for mailbox {1} since the granted access level to caller is None.", TraceContext.Get(), email);
return(new FreeBusyQueryResult(new NoFreeBusyAccessException(44348U)));
}
t = this.deadline - DateTime.UtcNow;
if (t <= TimeSpan.Zero)
{
return(this.HandleException(email, new TimeoutExpiredException("Get-Calendar-View")));
}
freeBusyViewType = CalendarQuery.GetReturnView(this.requestedFreeBusyView.RequestedView, freeBusyPermissionLevel);
ExDateTime windowStart = new ExDateTime(this.clientContext.TimeZone, this.requestedFreeBusyView.TimeWindow.StartTime);
ExDateTime windowEnd = new ExDateTime(this.clientContext.TimeZone, this.requestedFreeBusyView.TimeWindow.EndTime);
try
{
calendarEventArray = InternalCalendarQuery.GetCalendarEvents(email, calendarFolder, windowStart, windowEnd, freeBusyViewType, freeBusyPermissionLevel == FreeBusyPermissionLevel.Owner, this.clientContext.RequestSchemaVersion);
}
catch (ResultSetTooBigException e)
{
return(this.HandleException(email, e));
}
if (FreeBusyViewOptions.IsMerged(freeBusyViewType))
{
t = this.deadline - DateTime.UtcNow;
if (t <= TimeSpan.Zero)
{
return(this.HandleException(email, new TimeoutExpiredException("Generate-Merged-FreeBusy")));
}
int mergedFreeBusyIntervalInMinutes = this.requestedFreeBusyView.MergedFreeBusyIntervalInMinutes;
mergedFreeBusy = MergedFreeBusy.GenerateMergedFreeBusyString(this.clientContext.TimeZone, mergedFreeBusyIntervalInMinutes, windowStart, windowEnd, calendarEventArray, false, null, this.clientContext.RequestSchemaVersion);
}
t = this.deadline - DateTime.UtcNow;
if (t <= TimeSpan.Zero)
{
return(this.HandleException(email, new TimeoutExpiredException("Getting-Work-Hours")));
}
workingHours = this.GetWorkingHours(email, session, calendarFolder);
}
return(new FreeBusyQueryResult(freeBusyViewType, calendarEventArray, mergedFreeBusy, workingHours));
}