<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

<!-- This component and the accompanying materials are made available under the terms of the License 

"Eclipse Public License v1.0" which accompanies this distribution, 

and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

<!-- Initial Contributors:

    Nokia Corporation - initial contribution.

Contributors: 

-->

<!DOCTYPE concept

  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept id="GUID-51FB640F-AD0E-5A1A-80C3-D7AA53B31A21" xml:lang="en"><title>Comms

User Prompt Service</title><shortdesc> The Comms User Prompt Service (UPS) enables even unsigned applications

to access the network if user authorisation is provided. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>According to the platform model of Symbian platform any application connecting

to a network must have the <codeph>NetworkServices</codeph> capability. All

applications that have the <codeph>Networking service</codeph> capability

must be signed .</p>

<p>The target audience of this document are the licensees who write <xref href="GUID-F43A54C0-E82B-5790-8493-1372D214C642.dita#GUID-F43A54C0-E82B-5790-8493-1372D214C642/GUID-2372FF88-FA59-5CDF-9362-1A54F43D8442">MCPR</xref> plug-ins.

Symbian provides a <xref href="GUID-7BDC5FC0-15AD-56D3-BB64-C35F0C34A31F.dita">reference</xref> plug-in

for the licensees, which can be modified for customisation. The licensees

implementing the comms user prompt service must have knowledge of the Comms

Framework, for more information see <xref href="GUID-8F2D6AC8-8357-55C7-970B-CD2684BA9B04.dita">Communications

Framework</xref>. </p>

<section><title>User Prompt Service (UPS)</title> <p>Any application that

requires network access uses the <xref href="GUID-61E0CD76-A2E3-5066-84A8-146EECA8ADCD.dita">Socket

Server</xref> API using <xref href="GUID-BED8A733-2ED7-31AD-A911-C1F4707C67FD.dita"><apiname>RConnection</apiname></xref> or <xref href="GUID-D4F08503-F1EF-3531-9C3C-4AF24A6255F0.dita"><apiname>RSocket</apiname></xref>.

The platform security model checks the capability of the client application

to access the network. The comms user prompt service is used to notify the

user about the network access. The UPS feature enables applications without <codeph>NetworkServices</codeph> capability

to access the network if the user authorises the connection. </p> </section>

<section><title> User Prompt</title> <p>When comms UPS is implemented, the

user is requested to authorise a network connection, when an application opens

a new connection or when it attaches to an existing connection. The UPS prompts

the user when an application tries to send data through a socket which is

not explicitly associated with an authorised network connection. The IP network

user prompt is implemented as an MCPR plug-in. The plug-in will invoke the

UPS server. The UPS functionality can be <xref href="GUID-81238E98-755C-5E86-ADEA-6A675E058289.dita">configured</xref> by

the developers. </p> </section>

<section><title>Network Life Time</title> <p>When the comms user prompt service

component is configured for Network session life time, user responds to a

UPS dialog prompt by authorising the request with either '<codeph>Session

Yes</codeph>' or '<codeph>Always</codeph>' response. Any other applications

running in the same process of the user authorised application will be granted

the network access. The UPS response for a particular process is valid for

the duration of the network connection associated with the process. </p> </section>

<section><title>Session Life Time</title> <p>When the comms user prompt service

component is configured for Session life time, user responds to a UPS dialog

prompt by authorising the request with either '<codeph>Session Yes</codeph>'

or '<codeph>Always</codeph>' response. Any other applications running in the

same process of the user authorised session will be granted network access

for the duration of the process. </p> </section>

<section><title>User Prompt Service Server</title> <p>The UPS server generates

the user prompts and responds back to the MCPR with the user selection. The

dialog creator, a UPS plug-in, formats and streams the dialog box to the UPS

server. The UPS server interacts with the User Interface (UI) and responds

back to the MCPR. </p> <p>The UPS server is also responsible for checking

the policy files which has the details of the process and the available options. </p> </section>