121 lines
4.4 KiB
Java
121 lines
4.4 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.voicemail.impl.sms;
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import android.app.PendingIntent;
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import android.content.Context;
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import android.support.annotation.Nullable;
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import android.telecom.PhoneAccountHandle;
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import android.text.TextUtils;
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import com.android.voicemail.impl.OmtpConstants;
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/** A implementation of the OmtpMessageSender using the standard OMTP sms protocol. */
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public class OmtpStandardMessageSender extends OmtpMessageSender {
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private final String clientType;
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private final String protocolVersion;
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private final String clientPrefix;
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/**
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* Creates a new instance of OmtpStandardMessageSender.
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*
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* @param applicationPort If set to a value > 0 then a binary sms is sent to this port number.
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* Otherwise, a standard text SMS is sent.
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* @param destinationNumber Destination number to be used.
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* @param clientType The "ct" field to be set in the MO message. This is the value used by the VVM
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* server to identify the client. Certain VVM servers require a specific agreed value for this
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* field.
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* @param protocolVersion OMTP protocol version.
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* @param clientPrefix The client prefix requested to be used by the server in its MT messages.
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*/
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public OmtpStandardMessageSender(
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Context context,
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PhoneAccountHandle phoneAccountHandle,
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short applicationPort,
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String destinationNumber,
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String clientType,
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String protocolVersion,
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String clientPrefix) {
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super(context, phoneAccountHandle, applicationPort, destinationNumber);
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this.clientType = clientType;
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this.protocolVersion = protocolVersion;
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this.clientPrefix = clientPrefix;
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}
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// Activate message:
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// V1.1: Activate:pv=<value>;ct=<value>
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// V1.2: Activate:pv=<value>;ct=<value>;pt=<value>;<Clientprefix>
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// V1.3: Activate:pv=<value>;ct=<value>;pt=<value>;<Clientprefix>
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@Override
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public void requestVvmActivation(@Nullable PendingIntent sentIntent) {
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StringBuilder sb = new StringBuilder().append(OmtpConstants.ACTIVATE_REQUEST);
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appendProtocolVersionAndClientType(sb);
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if (TextUtils.equals(protocolVersion, OmtpConstants.PROTOCOL_VERSION1_2)
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|| TextUtils.equals(protocolVersion, OmtpConstants.PROTOCOL_VERSION1_3)) {
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appendApplicationPort(sb);
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appendClientPrefix(sb);
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}
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sendSms(sb.toString(), sentIntent);
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}
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// Deactivate message:
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// V1.1: Deactivate:pv=<value>;ct=<string>
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// V1.2: Deactivate:pv=<value>;ct=<string>
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// V1.3: Deactivate:pv=<value>;ct=<string>
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@Override
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public void requestVvmDeactivation(@Nullable PendingIntent sentIntent) {
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StringBuilder sb = new StringBuilder().append(OmtpConstants.DEACTIVATE_REQUEST);
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appendProtocolVersionAndClientType(sb);
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sendSms(sb.toString(), sentIntent);
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}
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// Status message:
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// V1.1: STATUS
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// V1.2: STATUS
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// V1.3: STATUS:pv=<value>;ct=<value>;pt=<value>;<Clientprefix>
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@Override
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public void requestVvmStatus(@Nullable PendingIntent sentIntent) {
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StringBuilder sb = new StringBuilder().append(OmtpConstants.STATUS_REQUEST);
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if (TextUtils.equals(protocolVersion, OmtpConstants.PROTOCOL_VERSION1_3)) {
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appendProtocolVersionAndClientType(sb);
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appendApplicationPort(sb);
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appendClientPrefix(sb);
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}
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sendSms(sb.toString(), sentIntent);
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}
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private void appendProtocolVersionAndClientType(StringBuilder sb) {
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sb.append(OmtpConstants.SMS_PREFIX_SEPARATOR);
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appendField(sb, OmtpConstants.PROTOCOL_VERSION, protocolVersion);
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sb.append(OmtpConstants.SMS_FIELD_SEPARATOR);
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appendField(sb, OmtpConstants.CLIENT_TYPE, clientType);
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}
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private void appendApplicationPort(StringBuilder sb) {
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sb.append(OmtpConstants.SMS_FIELD_SEPARATOR);
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appendField(sb, OmtpConstants.APPLICATION_PORT, applicationPort);
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}
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private void appendClientPrefix(StringBuilder sb) {
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sb.append(OmtpConstants.SMS_FIELD_SEPARATOR);
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sb.append(clientPrefix);
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}
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}
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