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 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);
}