| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.internal.telephony.cdma.sms; |
| |
| import android.util.Log; |
| |
| import android.telephony.SmsMessage; |
| |
| import android.text.format.Time; |
| |
| import com.android.internal.telephony.IccUtils; |
| import com.android.internal.telephony.GsmAlphabet; |
| import com.android.internal.telephony.SmsHeader; |
| import com.android.internal.telephony.cdma.sms.UserData; |
| |
| import com.android.internal.util.HexDump; |
| import com.android.internal.util.BitwiseInputStream; |
| import com.android.internal.util.BitwiseOutputStream; |
| |
| |
| /** |
| * An object to encode and decode CDMA SMS bearer data. |
| */ |
| public final class BearerData{ |
| private final static String LOG_TAG = "SMS"; |
| |
| /** |
| * Bearer Data Subparameter Indentifiers |
| * (See 3GPP2 C.S0015-B, v2.0, table 4.5-1) |
| * NOTE: Commented subparameter types are not implemented. |
| */ |
| private final static byte SUBPARAM_MESSAGE_IDENTIFIER = 0x00; |
| private final static byte SUBPARAM_USER_DATA = 0x01; |
| private final static byte SUBPARAM_USER_REPONSE_CODE = 0x02; |
| private final static byte SUBPARAM_MESSAGE_CENTER_TIME_STAMP = 0x03; |
| private final static byte SUBPARAM_VALIDITY_PERIOD_ABSOLUTE = 0x04; |
| private final static byte SUBPARAM_VALIDITY_PERIOD_RELATIVE = 0x05; |
| private final static byte SUBPARAM_DEFERRED_DELIVERY_TIME_ABSOLUTE = 0x06; |
| private final static byte SUBPARAM_DEFERRED_DELIVERY_TIME_RELATIVE = 0x07; |
| private final static byte SUBPARAM_PRIORITY_INDICATOR = 0x08; |
| private final static byte SUBPARAM_PRIVACY_INDICATOR = 0x09; |
| private final static byte SUBPARAM_REPLY_OPTION = 0x0A; |
| private final static byte SUBPARAM_NUMBER_OF_MESSAGES = 0x0B; |
| private final static byte SUBPARAM_ALERT_ON_MESSAGE_DELIVERY = 0x0C; |
| private final static byte SUBPARAM_LANGUAGE_INDICATOR = 0x0D; |
| private final static byte SUBPARAM_CALLBACK_NUMBER = 0x0E; |
| private final static byte SUBPARAM_MESSAGE_DISPLAY_MODE = 0x0F; |
| //private final static byte SUBPARAM_MULTIPLE_ENCODING_USER_DATA = 0x10; |
| private final static byte SUBPARAM_MESSAGE_DEPOSIT_INDEX = 0x11; |
| //private final static byte SUBPARAM_SERVICE_CATEGORY_PROGRAM_DATA = 0x12; |
| //private final static byte SUBPARAM_SERVICE_CATEGORY_PROGRAM_RESULTS = 0x13; |
| private final static byte SUBPARAM_MESSAGE_STATUS = 0x14; |
| //private final static byte SUBPARAM_TP_FAILURE_CAUSE = 0x15; |
| //private final static byte SUBPARAM_ENHANCED_VMN = 0x16; |
| //private final static byte SUBPARAM_ENHANCED_VMN_ACK = 0x17; |
| |
| /** |
| * Supported message types for CDMA SMS messages |
| * (See 3GPP2 C.S0015-B, v2.0, table 4.5.1-1) |
| */ |
| public static final int MESSAGE_TYPE_DELIVER = 0x01; |
| public static final int MESSAGE_TYPE_SUBMIT = 0x02; |
| public static final int MESSAGE_TYPE_CANCELLATION = 0x03; |
| public static final int MESSAGE_TYPE_DELIVERY_ACK = 0x04; |
| public static final int MESSAGE_TYPE_USER_ACK = 0x05; |
| public static final int MESSAGE_TYPE_READ_ACK = 0x06; |
| public static final int MESSAGE_TYPE_DELIVER_REPORT = 0x07; |
| public static final int MESSAGE_TYPE_SUBMIT_REPORT = 0x08; |
| |
| public byte messageType; |
| |
| /** |
| * 16-bit value indicating the message ID, which increments modulo 65536. |
| * (Special rules apply for WAP-messages.) |
| * (See 3GPP2 C.S0015-B, v2, 4.5.1) |
| */ |
| public int messageId; |
| |
| /** |
| * Supported priority modes for CDMA SMS messages |
| * (See 3GPP2 C.S0015-B, v2.0, table 4.5.9-1) |
| */ |
| public static final int PRIORITY_NORMAL = 0x0; |
| public static final int PRIORITY_INTERACTIVE = 0x1; |
| public static final int PRIORITY_URGENT = 0x2; |
| public static final int PRIORITY_EMERGENCY = 0x3; |
| |
| public boolean priorityIndicatorSet = false; |
| public byte priority = PRIORITY_NORMAL; |
| |
| /** |
| * Supported privacy modes for CDMA SMS messages |
| * (See 3GPP2 C.S0015-B, v2.0, table 4.5.10-1) |
| */ |
| public static final int PRIVACY_NOT_RESTRICTED = 0x0; |
| public static final int PRIVACY_RESTRICTED = 0x1; |
| public static final int PRIVACY_CONFIDENTIAL = 0x2; |
| public static final int PRIVACY_SECRET = 0x3; |
| |
| public boolean privacyIndicatorSet = false; |
| public byte privacy = PRIVACY_NOT_RESTRICTED; |
| |
| /** |
| * Supported alert priority modes for CDMA SMS messages |
| * (See 3GPP2 C.S0015-B, v2.0, table 4.5.13-1) |
| */ |
| public static final int ALERT_DEFAULT = 0x0; |
| public static final int ALERT_LOW_PRIO = 0x1; |
| public static final int ALERT_MEDIUM_PRIO = 0x2; |
| public static final int ALERT_HIGH_PRIO = 0x3; |
| |
| public boolean alertIndicatorSet = false; |
| public int alert = ALERT_DEFAULT; |
| |
| /** |
| * Supported display modes for CDMA SMS messages. Display mode is |
| * a 2-bit value used to indicate to the mobile station when to |
| * display the received message. (See 3GPP2 C.S0015-B, v2, |
| * 4.5.16) |
| */ |
| public static final int DISPLAY_MODE_IMMEDIATE = 0x0; |
| public static final int DISPLAY_MODE_DEFAULT = 0x1; |
| public static final int DISPLAY_MODE_USER = 0x2; |
| |
| public boolean displayModeSet = false; |
| public byte displayMode = DISPLAY_MODE_DEFAULT; |
| |
| /** |
| * Language Indicator values. NOTE: the spec (3GPP2 C.S0015-B, |
| * v2, 4.5.14) is ambiguous as to the meaning of this field, as it |
| * refers to C.R1001-D but that reference has been crossed out. |
| * It would seem reasonable to assume the values from C.R1001-F |
| * (table 9.2-1) are to be used instead. |
| */ |
| public static final int LANGUAGE_UNKNOWN = 0x00; |
| public static final int LANGUAGE_ENGLISH = 0x01; |
| public static final int LANGUAGE_FRENCH = 0x02; |
| public static final int LANGUAGE_SPANISH = 0x03; |
| public static final int LANGUAGE_JAPANESE = 0x04; |
| public static final int LANGUAGE_KOREAN = 0x05; |
| public static final int LANGUAGE_CHINESE = 0x06; |
| public static final int LANGUAGE_HEBREW = 0x07; |
| |
| public boolean languageIndicatorSet = false; |
| public int language = LANGUAGE_UNKNOWN; |
| |
| /** |
| * SMS Message Status Codes. The first component of the Message |
| * status indicates if an error has occurred and whether the error |
| * is considered permanent or temporary. The second component of |
| * the Message status indicates the cause of the error (if any). |
| * (See 3GPP2 C.S0015-B, v2.0, 4.5.21) |
| */ |
| /* no-error codes */ |
| public static final int ERROR_NONE = 0x00; |
| public static final int STATUS_ACCEPTED = 0x00; |
| public static final int STATUS_DEPOSITED_TO_INTERNET = 0x01; |
| public static final int STATUS_DELIVERED = 0x02; |
| public static final int STATUS_CANCELLED = 0x03; |
| /* temporary-error and permanent-error codes */ |
| public static final int ERROR_TEMPORARY = 0x02; |
| public static final int STATUS_NETWORK_CONGESTION = 0x04; |
| public static final int STATUS_NETWORK_ERROR = 0x05; |
| public static final int STATUS_UNKNOWN_ERROR = 0x1F; |
| /* permanent-error codes */ |
| public static final int ERROR_PERMANENT = 0x03; |
| public static final int STATUS_CANCEL_FAILED = 0x06; |
| public static final int STATUS_BLOCKED_DESTINATION = 0x07; |
| public static final int STATUS_TEXT_TOO_LONG = 0x08; |
| public static final int STATUS_DUPLICATE_MESSAGE = 0x09; |
| public static final int STATUS_INVALID_DESTINATION = 0x0A; |
| public static final int STATUS_MESSAGE_EXPIRED = 0x0D; |
| /* undefined-status codes */ |
| public static final int ERROR_UNDEFINED = 0xFF; |
| public static final int STATUS_UNDEFINED = 0xFF; |
| |
| public boolean messageStatusSet = false; |
| public int errorClass = ERROR_UNDEFINED; |
| public int messageStatus = STATUS_UNDEFINED; |
| |
| /** |
| * 1-bit value that indicates whether a User Data Header (UDH) is present. |
| * (See 3GPP2 C.S0015-B, v2, 4.5.1) |
| * |
| * NOTE: during encoding, this value will be set based on the |
| * presence of a UDH in the structured data, any existing setting |
| * will be overwritten. |
| */ |
| public boolean hasUserDataHeader; |
| |
| /** |
| * provides the information for the user data |
| * (e.g. padding bits, user data, user data header, etc) |
| * (See 3GPP2 C.S.0015-B, v2, 4.5.2) |
| */ |
| public UserData userData; |
| |
| /** |
| * The User Response Code subparameter is used in the SMS User |
| * Acknowledgment Message to respond to previously received short |
| * messages. This message center-specific element carries the |
| * identifier of a predefined response. (See 3GPP2 C.S.0015-B, v2, |
| * 4.5.3) |
| */ |
| public boolean userResponseCodeSet = false; |
| public int userResponseCode; |
| |
| /** |
| * 6-byte-field, see 3GPP2 C.S0015-B, v2, 4.5.4 |
| */ |
| public static class TimeStamp extends Time { |
| |
| public TimeStamp() { |
| super(Time.TIMEZONE_UTC); |
| } |
| |
| public static TimeStamp fromByteArray(byte[] data) { |
| TimeStamp ts = new TimeStamp(); |
| // C.S0015-B v2.0, 4.5.4: range is 1996-2095 |
| int year = IccUtils.beBcdByteToInt(data[0]); |
| if (year > 99 || year < 0) return null; |
| ts.year = year >= 96 ? year + 1900 : year + 2000; |
| int month = IccUtils.beBcdByteToInt(data[1]); |
| if (month < 1 || month > 12) return null; |
| ts.month = month - 1; |
| int day = IccUtils.beBcdByteToInt(data[2]); |
| if (day < 1 || day > 31) return null; |
| ts.monthDay = day; |
| int hour = IccUtils.beBcdByteToInt(data[3]); |
| if (hour < 0 || hour > 23) return null; |
| ts.hour = hour; |
| int minute = IccUtils.beBcdByteToInt(data[4]); |
| if (minute < 0 || minute > 59) return null; |
| ts.minute = minute; |
| int second = IccUtils.beBcdByteToInt(data[5]); |
| if (second < 0 || second > 59) return null; |
| ts.second = second; |
| return ts; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder builder = new StringBuilder(); |
| builder.append("TimeStamp "); |
| builder.append("{ year=" + year); |
| builder.append(", month=" + month); |
| builder.append(", day=" + monthDay); |
| builder.append(", hour=" + hour); |
| builder.append(", minute=" + minute); |
| builder.append(", second=" + second); |
| builder.append(" }"); |
| return builder.toString(); |
| } |
| } |
| |
| public TimeStamp msgCenterTimeStamp; |
| public TimeStamp validityPeriodAbsolute; |
| public TimeStamp deferredDeliveryTimeAbsolute; |
| |
| /** |
| * Relative time is specified as one byte, the value of which |
| * falls into a series of ranges, as specified below. The idea is |
| * that shorter time intervals allow greater precision -- the |
| * value means minutes from zero until the MINS_LIMIT (inclusive), |
| * upon which it means hours until the HOURS_LIMIT, and so |
| * forth. (See 3GPP2 C.S0015-B, v2, 4.5.6-1) |
| */ |
| public static final int RELATIVE_TIME_MINS_LIMIT = 143; |
| public static final int RELATIVE_TIME_HOURS_LIMIT = 167; |
| public static final int RELATIVE_TIME_DAYS_LIMIT = 196; |
| public static final int RELATIVE_TIME_WEEKS_LIMIT = 244; |
| public static final int RELATIVE_TIME_INDEFINITE = 245; |
| public static final int RELATIVE_TIME_NOW = 246; |
| public static final int RELATIVE_TIME_MOBILE_INACTIVE = 247; |
| public static final int RELATIVE_TIME_RESERVED = 248; |
| |
| public boolean validityPeriodRelativeSet; |
| public int validityPeriodRelative; |
| public boolean deferredDeliveryTimeRelativeSet; |
| public int deferredDeliveryTimeRelative; |
| |
| /** |
| * The Reply Option subparameter contains 1-bit values which |
| * indicate whether SMS acknowledgment is requested or not. (See |
| * 3GPP2 C.S0015-B, v2, 4.5.11) |
| */ |
| public boolean userAckReq; |
| public boolean deliveryAckReq; |
| public boolean readAckReq; |
| public boolean reportReq; |
| |
| /** |
| * The Number of Messages subparameter (8-bit value) is a decimal |
| * number in the 0 to 99 range representing the number of messages |
| * stored at the Voice Mail System. This element is used by the |
| * Voice Mail Notification service. (See 3GPP2 C.S0015-B, v2, |
| * 4.5.12) |
| */ |
| public int numberOfMessages; |
| |
| /** |
| * The Message Deposit Index subparameter is assigned by the |
| * message center as a unique index to the contents of the User |
| * Data subparameter in each message sent to a particular mobile |
| * station. The mobile station, when replying to a previously |
| * received short message which included a Message Deposit Index |
| * subparameter, may include the Message Deposit Index of the |
| * received message to indicate to the message center that the |
| * original contents of the message are to be included in the |
| * reply. (See 3GPP2 C.S0015-B, v2, 4.5.18) |
| */ |
| public int depositIndex; |
| |
| /** |
| * 4-bit or 8-bit value that indicates the number to be dialed in reply to a |
| * received SMS message. |
| * (See 3GPP2 C.S0015-B, v2, 4.5.15) |
| */ |
| public CdmaSmsAddress callbackNumber; |
| |
| private static class CodingException extends Exception { |
| public CodingException(String s) { |
| super(s); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder builder = new StringBuilder(); |
| builder.append("BearerData "); |
| builder.append("{ messageType=" + messageType); |
| builder.append(", messageId=" + (int)messageId); |
| builder.append(", priority=" + (priorityIndicatorSet ? priority : "unset")); |
| builder.append(", privacy=" + (privacyIndicatorSet ? privacy : "unset")); |
| builder.append(", alert=" + (alertIndicatorSet ? alert : "unset")); |
| builder.append(", displayMode=" + (displayModeSet ? displayMode : "unset")); |
| builder.append(", language=" + (languageIndicatorSet ? language : "unset")); |
| builder.append(", errorClass=" + (messageStatusSet ? errorClass : "unset")); |
| builder.append(", msgStatus=" + (messageStatusSet ? messageStatus : "unset")); |
| builder.append(", msgCenterTimeStamp=" + |
| ((msgCenterTimeStamp != null) ? msgCenterTimeStamp : "unset")); |
| builder.append(", validityPeriodAbsolute=" + |
| ((validityPeriodAbsolute != null) ? validityPeriodAbsolute : "unset")); |
| builder.append(", validityPeriodRelative=" + |
| ((validityPeriodRelativeSet) ? validityPeriodRelative : "unset")); |
| builder.append(", deferredDeliveryTimeAbsolute=" + |
| ((deferredDeliveryTimeAbsolute != null) ? deferredDeliveryTimeAbsolute : "unset")); |
| builder.append(", deferredDeliveryTimeRelative=" + |
| ((deferredDeliveryTimeRelativeSet) ? deferredDeliveryTimeRelative : "unset")); |
| builder.append(", userAckReq=" + userAckReq); |
| builder.append(", deliveryAckReq=" + deliveryAckReq); |
| builder.append(", readAckReq=" + readAckReq); |
| builder.append(", reportReq=" + reportReq); |
| builder.append(", numberOfMessages=" + numberOfMessages); |
| builder.append(", callbackNumber=" + callbackNumber); |
| builder.append(", depositIndex=" + depositIndex); |
| builder.append(", hasUserDataHeader=" + hasUserDataHeader); |
| builder.append(", userData=" + userData); |
| builder.append(" }"); |
| return builder.toString(); |
| } |
| |
| private static void encodeMessageId(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 3); |
| outStream.write(4, bData.messageType); |
| outStream.write(8, bData.messageId >> 8); |
| outStream.write(8, bData.messageId); |
| outStream.write(1, bData.hasUserDataHeader ? 1 : 0); |
| outStream.skip(3); |
| } |
| |
| private static class SeptetData { |
| byte data[]; |
| int septetCount; |
| |
| SeptetData(byte[] data, int septetCount) { |
| this.data = data; |
| this.septetCount = septetCount; |
| } |
| } |
| |
| private static SeptetData encode7bitAscii(String msg, boolean force) |
| throws CodingException |
| { |
| try { |
| BitwiseOutputStream outStream = new BitwiseOutputStream(msg.length()); |
| byte[] expandedData = msg.getBytes("US-ASCII"); |
| for (int i = 0; i < expandedData.length; i++) { |
| int charCode = expandedData[i]; |
| // Test ourselves for ASCII membership, since Java seems not to care. |
| if ((charCode < UserData.PRINTABLE_ASCII_MIN_INDEX) || |
| (charCode > UserData.PRINTABLE_ASCII_MAX_INDEX)) { |
| if (force) { |
| outStream.write(7, UserData.UNENCODABLE_7_BIT_CHAR); |
| } else { |
| throw new CodingException("illegal ASCII code (" + charCode + ")"); |
| } |
| } else { |
| outStream.write(7, expandedData[i]); |
| } |
| } |
| return new SeptetData(outStream.toByteArray(), expandedData.length); |
| } catch (java.io.UnsupportedEncodingException ex) { |
| throw new CodingException("7bit ASCII encode failed: " + ex); |
| } catch (BitwiseOutputStream.AccessException ex) { |
| throw new CodingException("7bit ASCII encode failed: " + ex); |
| } |
| } |
| |
| /** |
| * Calculate the number of septets needed to encode the message. |
| * |
| * @param force ignore (but still count) illegal characters if true |
| * @return septet count, or -1 on failure |
| */ |
| public static int calc7bitEncodedLength(String msg, boolean force) { |
| try { |
| SeptetData data = encode7bitAscii(msg, force); |
| return data.septetCount; |
| } catch (CodingException ex) { |
| return -1; |
| } |
| } |
| |
| private static byte[] encodeUtf16(String msg) |
| throws CodingException |
| { |
| try { |
| return msg.getBytes("utf-16be"); |
| } catch (java.io.UnsupportedEncodingException ex) { |
| throw new CodingException("UTF-16 encode failed: " + ex); |
| } |
| } |
| |
| private static byte[] encode7bitGsm(String msg) |
| throws CodingException |
| { |
| try { |
| /** |
| * TODO(cleanup): find some way to do this without the copy. |
| */ |
| byte []fullData = GsmAlphabet.stringToGsm7BitPacked(msg); |
| byte []data = new byte[fullData.length - 1]; |
| for (int i = 0; i < data.length; i++) { |
| data[i] = fullData[i + 1]; |
| } |
| return data; |
| } catch (com.android.internal.telephony.EncodeException ex) { |
| throw new CodingException("7bit GSM encode failed: " + ex); |
| } |
| } |
| |
| private static void encodeUserDataPayload(UserData uData) |
| throws CodingException |
| { |
| byte[] headerData = null; |
| if (uData.userDataHeader != null) headerData = SmsHeader.toByteArray(uData.userDataHeader); |
| int headerDataLen = (headerData == null) ? 0 : headerData.length + 1; // + length octet |
| |
| byte[] payloadData; |
| if (uData.msgEncodingSet) { |
| if (uData.msgEncoding == UserData.ENCODING_OCTET) { |
| if (uData.payload == null) { |
| Log.e(LOG_TAG, "user data with octet encoding but null payload"); |
| // TODO(code_review): reasonable for fail case? or maybe bail on encoding? |
| payloadData = new byte[0]; |
| } else { |
| payloadData = uData.payload; |
| } |
| } else { |
| if (uData.payloadStr == null) { |
| Log.e(LOG_TAG, "non-octet user data with null payloadStr"); |
| // TODO(code_review): reasonable for fail case? or maybe bail on encoding? |
| uData.payloadStr = ""; |
| } |
| if (uData.msgEncoding == UserData.ENCODING_GSM_7BIT_ALPHABET) { |
| payloadData = encode7bitGsm(uData.payloadStr); |
| } else if (uData.msgEncoding == UserData.ENCODING_7BIT_ASCII) { |
| SeptetData septetData = encode7bitAscii(uData.payloadStr, true); |
| payloadData = septetData.data; |
| } else if (uData.msgEncoding == UserData.ENCODING_UNICODE_16) { |
| payloadData = encodeUtf16(uData.payloadStr); |
| } else { |
| throw new CodingException("unsupported user data encoding (" + |
| uData.msgEncoding + ")"); |
| } |
| uData.numFields = uData.payloadStr.length(); |
| } |
| } else { |
| if (uData.payloadStr == null) { |
| Log.e(LOG_TAG, "user data with null payloadStr"); |
| // TODO(code_review): reasonable for fail case? or maybe bail on encoding? |
| uData.payloadStr = ""; |
| } |
| try { |
| SeptetData septetData = encode7bitAscii(uData.payloadStr, false); |
| payloadData = septetData.data; |
| uData.msgEncoding = UserData.ENCODING_7BIT_ASCII; |
| } catch (CodingException ex) { |
| payloadData = encodeUtf16(uData.payloadStr); |
| uData.msgEncoding = UserData.ENCODING_UNICODE_16; |
| } |
| uData.msgEncodingSet = true; |
| uData.numFields = uData.payloadStr.length(); |
| } |
| |
| int totalLength = payloadData.length + headerDataLen; |
| if (totalLength > SmsMessage.MAX_USER_DATA_BYTES) { |
| throw new CodingException("encoded user data too large (" + totalLength + |
| " > " + SmsMessage.MAX_USER_DATA_BYTES + " bytes)"); |
| } |
| |
| uData.payload = new byte[totalLength]; |
| if (headerData != null) { |
| uData.payload[0] = (byte)headerData.length; |
| System.arraycopy(headerData, 0, uData.payload, 1, headerData.length); |
| } |
| System.arraycopy(payloadData, 0, uData.payload, headerDataLen, payloadData.length); |
| } |
| |
| private static void encodeUserData(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException, CodingException |
| { |
| encodeUserDataPayload(bData.userData); |
| /** |
| * XXX/TODO: figure out what the right answer is WRT padding bits |
| * |
| * userData.paddingBits = (userData.payload.length * 8) - (userData.numFields * 7); |
| * userData.paddingBits = 0; // XXX this seems better, but why? |
| * |
| */ |
| int dataBits = (bData.userData.payload.length * 8) - bData.userData.paddingBits; |
| int paramBits = dataBits + 13; |
| if ((bData.userData.msgEncoding == UserData.ENCODING_IS91_EXTENDED_PROTOCOL) || |
| (bData.userData.msgEncoding == UserData.ENCODING_GSM_DCS)) { |
| paramBits += 8; |
| } |
| int paramBytes = (paramBits / 8) + ((paramBits % 8) > 0 ? 1 : 0); |
| int paddingBits = (paramBytes * 8) - paramBits; |
| outStream.write(8, paramBytes); |
| outStream.write(5, bData.userData.msgEncoding); |
| if ((bData.userData.msgEncoding == UserData.ENCODING_IS91_EXTENDED_PROTOCOL) || |
| (bData.userData.msgEncoding == UserData.ENCODING_GSM_DCS)) { |
| outStream.write(8, bData.userData.msgType); |
| } |
| outStream.write(8, bData.userData.numFields); |
| outStream.writeByteArray(dataBits, bData.userData.payload); |
| if (paddingBits > 0) outStream.write(paddingBits, 0); |
| } |
| |
| private static void encodeReplyOption(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(1, bData.userAckReq ? 1 : 0); |
| outStream.write(1, bData.deliveryAckReq ? 1 : 0); |
| outStream.write(1, bData.readAckReq ? 1 : 0); |
| outStream.write(1, bData.reportReq ? 1 : 0); |
| outStream.write(4, 0); |
| } |
| |
| private static byte[] encodeDtmfSmsAddress(String address) { |
| int digits = address.length(); |
| int dataBits = digits * 4; |
| int dataBytes = (dataBits / 8); |
| dataBytes += (dataBits % 8) > 0 ? 1 : 0; |
| byte[] rawData = new byte[dataBytes]; |
| for (int i = 0; i < digits; i++) { |
| char c = address.charAt(i); |
| int val = 0; |
| if ((c >= '1') && (c <= '9')) val = c - '0'; |
| else if (c == '0') val = 10; |
| else if (c == '*') val = 11; |
| else if (c == '#') val = 12; |
| else return null; |
| rawData[i / 2] |= val << (4 - ((i % 2) * 4)); |
| } |
| return rawData; |
| } |
| |
| private static void encodeCdmaSmsAddress(CdmaSmsAddress addr) throws CodingException { |
| if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_8BIT_CHAR) { |
| try { |
| addr.origBytes = addr.address.getBytes("US-ASCII"); |
| } catch (java.io.UnsupportedEncodingException ex) { |
| throw new CodingException("invalid SMS address, cannot convert to ASCII"); |
| } |
| } else { |
| addr.origBytes = encodeDtmfSmsAddress(addr.address); |
| } |
| } |
| |
| private static void encodeCallbackNumber(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException, CodingException |
| { |
| CdmaSmsAddress addr = bData.callbackNumber; |
| encodeCdmaSmsAddress(addr); |
| int paramBits = 9; |
| int dataBits = 0; |
| if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_8BIT_CHAR) { |
| paramBits += 7; |
| dataBits = addr.numberOfDigits * 8; |
| } else { |
| dataBits = addr.numberOfDigits * 4; |
| } |
| paramBits += dataBits; |
| int paramBytes = (paramBits / 8) + ((paramBits % 8) > 0 ? 1 : 0); |
| int paddingBits = (paramBytes * 8) - paramBits; |
| outStream.write(8, paramBytes); |
| outStream.write(1, addr.digitMode); |
| if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_8BIT_CHAR) { |
| outStream.write(3, addr.ton); |
| outStream.write(4, addr.numberPlan); |
| } |
| outStream.write(8, addr.numberOfDigits); |
| outStream.writeByteArray(dataBits, addr.origBytes); |
| if (paddingBits > 0) outStream.write(paddingBits, 0); |
| } |
| |
| private static void encodeMsgStatus(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(2, bData.errorClass); |
| outStream.write(6, bData.messageStatus); |
| } |
| |
| private static void encodeMsgCount(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(8, bData.numberOfMessages); |
| } |
| |
| private static void encodeValidityPeriodRel(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(8, bData.validityPeriodRelative); |
| } |
| |
| private static void encodePrivacyIndicator(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(2, bData.privacy); |
| outStream.skip(6); |
| } |
| |
| private static void encodeLanguageIndicator(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(8, bData.language); |
| } |
| |
| private static void encodeDisplayMode(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(2, bData.displayMode); |
| outStream.skip(6); |
| } |
| |
| private static void encodePriorityIndicator(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(2, bData.priority); |
| outStream.skip(6); |
| } |
| |
| private static void encodeMsgDeliveryAlert(BearerData bData, BitwiseOutputStream outStream) |
| throws BitwiseOutputStream.AccessException |
| { |
| outStream.write(8, 1); |
| outStream.write(2, bData.alert); |
| outStream.skip(6); |
| } |
| |
| /** |
| * Create serialized representation for BearerData object. |
| * (See 3GPP2 C.R1001-F, v1.0, section 4.5 for layout details) |
| * |
| * @param bearerData an instance of BearerData. |
| * |
| * @return data byta array of raw encoded SMS bearer data. |
| */ |
| public static byte[] encode(BearerData bData) { |
| bData.hasUserDataHeader = ((bData.userData != null) && |
| (bData.userData.userDataHeader != null)); |
| try { |
| BitwiseOutputStream outStream = new BitwiseOutputStream(200); |
| outStream.write(8, SUBPARAM_MESSAGE_IDENTIFIER); |
| encodeMessageId(bData, outStream); |
| if (bData.userData != null) { |
| outStream.write(8, SUBPARAM_USER_DATA); |
| encodeUserData(bData, outStream); |
| } |
| if (bData.callbackNumber != null) { |
| outStream.write(8, SUBPARAM_CALLBACK_NUMBER); |
| encodeCallbackNumber(bData, outStream); |
| } |
| if (bData.userAckReq || bData.deliveryAckReq || bData.readAckReq || bData.reportReq) { |
| outStream.write(8, SUBPARAM_REPLY_OPTION); |
| encodeReplyOption(bData, outStream); |
| } |
| if (bData.numberOfMessages != 0) { |
| outStream.write(8, SUBPARAM_NUMBER_OF_MESSAGES); |
| encodeMsgCount(bData, outStream); |
| } |
| if (bData.validityPeriodRelativeSet) { |
| outStream.write(8, SUBPARAM_VALIDITY_PERIOD_RELATIVE); |
| encodeValidityPeriodRel(bData, outStream); |
| } |
| if (bData.privacyIndicatorSet) { |
| outStream.write(8, SUBPARAM_PRIVACY_INDICATOR); |
| encodePrivacyIndicator(bData, outStream); |
| } |
| if (bData.languageIndicatorSet) { |
| outStream.write(8, SUBPARAM_LANGUAGE_INDICATOR); |
| encodeLanguageIndicator(bData, outStream); |
| } |
| if (bData.displayModeSet) { |
| outStream.write(8, SUBPARAM_MESSAGE_DISPLAY_MODE); |
| encodeDisplayMode(bData, outStream); |
| } |
| if (bData.priorityIndicatorSet) { |
| outStream.write(8, SUBPARAM_PRIORITY_INDICATOR); |
| encodePriorityIndicator(bData, outStream); |
| } |
| if (bData.alertIndicatorSet) { |
| outStream.write(8, SUBPARAM_ALERT_ON_MESSAGE_DELIVERY); |
| encodeMsgDeliveryAlert(bData, outStream); |
| } |
| if (bData.messageStatusSet) { |
| outStream.write(8, SUBPARAM_MESSAGE_STATUS); |
| encodeMsgStatus(bData, outStream); |
| } |
| return outStream.toByteArray(); |
| } catch (BitwiseOutputStream.AccessException ex) { |
| Log.e(LOG_TAG, "BearerData encode failed: " + ex); |
| } catch (CodingException ex) { |
| Log.e(LOG_TAG, "BearerData encode failed: " + ex); |
| } |
| return null; |
| } |
| |
| private static void decodeMessageId(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 3) { |
| throw new CodingException("MESSAGE_IDENTIFIER subparam size incorrect"); |
| } |
| bData.messageType = inStream.read(4); |
| bData.messageId = inStream.read(8) << 8; |
| bData.messageId |= inStream.read(8); |
| bData.hasUserDataHeader = (inStream.read(1) == 1); |
| inStream.skip(3); |
| } |
| |
| private static void decodeUserData(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException |
| { |
| byte paramBytes = inStream.read(8); |
| bData.userData = new UserData(); |
| bData.userData.msgEncoding = inStream.read(5); |
| bData.userData.msgEncodingSet = true; |
| bData.userData.msgType = 0; |
| int consumedBits = 5; |
| if ((bData.userData.msgEncoding == UserData.ENCODING_IS91_EXTENDED_PROTOCOL) || |
| (bData.userData.msgEncoding == UserData.ENCODING_GSM_DCS)) { |
| bData.userData.msgType = inStream.read(8); |
| consumedBits += 8; |
| } |
| bData.userData.numFields = inStream.read(8); |
| consumedBits += 8; |
| int dataBits = (paramBytes * 8) - consumedBits; |
| bData.userData.payload = inStream.readByteArray(dataBits); |
| } |
| |
| private static String decodeUtf16(byte[] data, int offset, int numFields) |
| throws CodingException |
| { |
| try { |
| return new String(data, offset, numFields * 2, "utf-16be"); |
| } catch (java.io.UnsupportedEncodingException ex) { |
| throw new CodingException("UTF-16 decode failed: " + ex); |
| } |
| } |
| |
| private static String decodeIa5(byte[] data, int offset, int numFields) |
| throws CodingException |
| { |
| try { |
| offset *= 8; |
| StringBuffer strBuf = new StringBuffer(numFields); |
| BitwiseInputStream inStream = new BitwiseInputStream(data); |
| int wantedBits = (offset * 8) + (numFields * 7); |
| if (inStream.available() < wantedBits) { |
| throw new CodingException("insufficient data (wanted " + wantedBits + |
| " bits, but only have " + inStream.available() + ")"); |
| } |
| inStream.skip(offset); |
| for (int i = 0; i < numFields; i++) { |
| int charCode = inStream.read(7); |
| if ((charCode < UserData.IA5_MAP_BASE_INDEX) || |
| (charCode > UserData.IA5_MAP_MAX_INDEX)) { |
| throw new CodingException("unsupported AI5 character code (" + charCode + ")"); |
| } |
| strBuf.append(UserData.IA5_MAP[charCode - UserData.IA5_MAP_BASE_INDEX]); |
| } |
| return strBuf.toString(); |
| } catch (BitwiseInputStream.AccessException ex) { |
| throw new CodingException("AI5 decode failed: " + ex); |
| } |
| } |
| |
| private static String decode7bitAscii(byte[] data, int offset, int numFields) |
| throws CodingException |
| { |
| try { |
| offset *= 8; |
| BitwiseInputStream inStream = new BitwiseInputStream(data); |
| int wantedBits = offset + (numFields * 7); |
| if (inStream.available() < wantedBits) { |
| throw new CodingException("insufficient data (wanted " + wantedBits + |
| " bits, but only have " + inStream.available() + ")"); |
| } |
| inStream.skip(offset); |
| byte[] expandedData = new byte[numFields]; |
| for (int i = 0; i < numFields; i++) { |
| expandedData[i] = inStream.read(7); |
| } |
| return new String(expandedData, 0, numFields, "US-ASCII"); |
| } catch (java.io.UnsupportedEncodingException ex) { |
| throw new CodingException("7bit ASCII decode failed: " + ex); |
| } catch (BitwiseInputStream.AccessException ex) { |
| throw new CodingException("7bit ASCII decode failed: " + ex); |
| } |
| } |
| |
| private static String decode7bitGsm(byte[] data, int offset, int numFields) |
| throws CodingException |
| { |
| String result = GsmAlphabet.gsm7BitPackedToString(data, offset, numFields); |
| if (result == null) { |
| throw new CodingException("7bit GSM decoding failed"); |
| } |
| return result; |
| } |
| |
| private static void decodeUserDataPayload(UserData userData, boolean hasUserDataHeader) |
| throws CodingException |
| { |
| int offset = 0; |
| if (hasUserDataHeader) { |
| int udhLen = userData.payload[0] & 0x00FF; |
| offset += udhLen + 1; |
| byte[] headerData = new byte[udhLen]; |
| System.arraycopy(userData.payload, 1, headerData, 0, udhLen); |
| userData.userDataHeader = SmsHeader.fromByteArray(headerData); |
| } |
| switch (userData.msgEncoding) { |
| case UserData.ENCODING_OCTET: |
| break; |
| case UserData.ENCODING_7BIT_ASCII: |
| userData.payloadStr = decode7bitAscii(userData.payload, offset, userData.numFields); |
| break; |
| case UserData.ENCODING_IA5: |
| userData.payloadStr = decodeIa5(userData.payload, offset, userData.numFields); |
| break; |
| case UserData.ENCODING_UNICODE_16: |
| userData.payloadStr = decodeUtf16(userData.payload, offset, userData.numFields); |
| break; |
| case UserData.ENCODING_GSM_7BIT_ALPHABET: |
| userData.payloadStr = decode7bitGsm(userData.payload, offset, userData.numFields); |
| break; |
| default: |
| throw new CodingException("unsupported user data encoding (" |
| + userData.msgEncoding + ")"); |
| } |
| } |
| |
| private static void decodeReplyOption(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| byte paramBytes = inStream.read(8); |
| if (paramBytes != 1) { |
| throw new CodingException("REPLY_OPTION subparam size incorrect"); |
| } |
| bData.userAckReq = (inStream.read(1) == 1); |
| bData.deliveryAckReq = (inStream.read(1) == 1); |
| bData.readAckReq = (inStream.read(1) == 1); |
| bData.reportReq = (inStream.read(1) == 1); |
| inStream.skip(4); |
| } |
| |
| private static void decodeMsgCount(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("NUMBER_OF_MESSAGES subparam size incorrect"); |
| } |
| bData.numberOfMessages = inStream.read(8); |
| } |
| |
| private static void decodeDepositIndex(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 2) { |
| throw new CodingException("MESSAGE_DEPOSIT_INDEX subparam size incorrect"); |
| } |
| bData.depositIndex = (inStream.read(8) << 8) | inStream.read(8); |
| } |
| |
| private static String decodeDtmfSmsAddress(byte[] rawData, int numFields) |
| throws CodingException |
| { |
| /* DTMF 4-bit digit encoding, defined in at |
| * 3GPP2 C.S005-D, v2.0, table 2.7.1.3.2.4-4 */ |
| StringBuffer strBuf = new StringBuffer(numFields); |
| for (int i = 0; i < numFields; i++) { |
| int val = 0x0F & (rawData[i / 2] >>> (4 - ((i % 2) * 4))); |
| if ((val >= 1) && (val <= 9)) strBuf.append(Integer.toString(val, 10)); |
| else if (val == 10) strBuf.append('0'); |
| else if (val == 11) strBuf.append('*'); |
| else if (val == 12) strBuf.append('#'); |
| else throw new CodingException("invalid SMS address DTMF code (" + val + ")"); |
| } |
| return strBuf.toString(); |
| } |
| |
| private static void decodeSmsAddress(CdmaSmsAddress addr) throws CodingException { |
| if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_8BIT_CHAR) { |
| try { |
| /* As specified in 3GPP2 C.S0015-B, v2, 4.5.15 -- actually |
| * just 7-bit ASCII encoding, with the MSB being zero. */ |
| addr.address = new String(addr.origBytes, 0, addr.origBytes.length, "US-ASCII"); |
| } catch (java.io.UnsupportedEncodingException ex) { |
| throw new CodingException("invalid SMS address ASCII code"); |
| } |
| } else { |
| addr.address = decodeDtmfSmsAddress(addr.origBytes, addr.numberOfDigits); |
| } |
| } |
| |
| private static void decodeCallbackNumber(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| byte paramBytes = inStream.read(8); |
| CdmaSmsAddress addr = new CdmaSmsAddress(); |
| addr.digitMode = inStream.read(1); |
| byte fieldBits = 4; |
| byte consumedBits = 1; |
| if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_8BIT_CHAR) { |
| addr.ton = inStream.read(3); |
| addr.numberPlan = inStream.read(4); |
| fieldBits = 8; |
| consumedBits += 7; |
| } |
| addr.numberOfDigits = inStream.read(8); |
| consumedBits += 8; |
| int remainingBits = (paramBytes * 8) - consumedBits; |
| int dataBits = addr.numberOfDigits * fieldBits; |
| int paddingBits = remainingBits - dataBits; |
| if (remainingBits < dataBits) { |
| throw new CodingException("CALLBACK_NUMBER subparam encoding size error (" + |
| "remainingBits " + remainingBits + ", dataBits " + |
| dataBits + ", paddingBits " + paddingBits + ")"); |
| } |
| addr.origBytes = inStream.readByteArray(dataBits); |
| inStream.skip(paddingBits); |
| decodeSmsAddress(addr); |
| bData.callbackNumber = addr; |
| } |
| |
| private static void decodeMsgStatus(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("MESSAGE_STATUS subparam size incorrect"); |
| } |
| bData.errorClass = inStream.read(2); |
| bData.messageStatus = inStream.read(6); |
| bData.messageStatusSet = true; |
| } |
| |
| private static void decodeMsgCenterTimeStamp(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 6) { |
| throw new CodingException("MESSAGE_CENTER_TIME_STAMP subparam size incorrect"); |
| } |
| bData.msgCenterTimeStamp = TimeStamp.fromByteArray(inStream.readByteArray(6 * 8)); |
| } |
| |
| private static void decodeValidityAbs(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 6) { |
| throw new CodingException("VALIDITY_PERIOD_ABSOLUTE subparam size incorrect"); |
| } |
| bData.validityPeriodAbsolute = TimeStamp.fromByteArray(inStream.readByteArray(6 * 8)); |
| } |
| |
| private static void decodeDeferredDeliveryAbs(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 6) { |
| throw new CodingException("DEFERRED_DELIVERY_TIME_ABSOLUTE subparam size incorrect"); |
| } |
| bData.deferredDeliveryTimeAbsolute = TimeStamp.fromByteArray(inStream.readByteArray(6 * 8)); |
| } |
| |
| private static void decodeValidityRel(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("VALIDITY_PERIOD_RELATIVE subparam size incorrect"); |
| } |
| bData.deferredDeliveryTimeRelative = inStream.read(8); |
| bData.deferredDeliveryTimeRelativeSet = true; |
| } |
| |
| private static void decodeDeferredDeliveryRel(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("DEFERRED_DELIVERY_TIME_RELATIVE subparam size incorrect"); |
| } |
| bData.validityPeriodRelative = inStream.read(8); |
| bData.validityPeriodRelativeSet = true; |
| } |
| |
| private static void decodePrivacyIndicator(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("PRIVACY_INDICATOR subparam size incorrect"); |
| } |
| bData.privacy = inStream.read(2); |
| inStream.skip(6); |
| bData.privacyIndicatorSet = true; |
| } |
| |
| private static void decodeLanguageIndicator(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("LANGUAGE_INDICATOR subparam size incorrect"); |
| } |
| bData.language = inStream.read(8); |
| bData.languageIndicatorSet = true; |
| } |
| |
| private static void decodeDisplayMode(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("DISPLAY_MODE subparam size incorrect"); |
| } |
| bData.displayMode = inStream.read(2); |
| inStream.skip(6); |
| bData.displayModeSet = true; |
| } |
| |
| private static void decodePriorityIndicator(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("PRIORITY_INDICATOR subparam size incorrect"); |
| } |
| bData.priority = inStream.read(2); |
| inStream.skip(6); |
| bData.priorityIndicatorSet = true; |
| } |
| |
| private static void decodeMsgDeliveryAlert(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("ALERT_ON_MESSAGE_DELIVERY subparam size incorrect"); |
| } |
| bData.alert = inStream.read(2); |
| inStream.skip(6); |
| bData.alertIndicatorSet = true; |
| } |
| |
| private static void decodeUserResponseCode(BearerData bData, BitwiseInputStream inStream) |
| throws BitwiseInputStream.AccessException, CodingException |
| { |
| if (inStream.read(8) != 1) { |
| throw new CodingException("USER_REPONSE_CODE subparam size incorrect"); |
| } |
| bData.userResponseCode = inStream.read(8); |
| bData.userResponseCodeSet = true; |
| } |
| |
| /** |
| * Create BearerData object from serialized representation. |
| * (See 3GPP2 C.R1001-F, v1.0, section 4.5 for layout details) |
| * |
| * @param smsData byte array of raw encoded SMS bearer data. |
| * |
| * @return an instance of BearerData. |
| */ |
| public static BearerData decode(byte[] smsData) { |
| try { |
| BitwiseInputStream inStream = new BitwiseInputStream(smsData); |
| BearerData bData = new BearerData(); |
| int foundSubparamMask = 0; |
| while (inStream.available() > 0) { |
| int subparamId = inStream.read(8); |
| int subparamIdBit = 1 << subparamId; |
| if ((foundSubparamMask & subparamIdBit) != 0) { |
| throw new CodingException("illegal duplicate subparameter (" + |
| subparamId + ")"); |
| } |
| foundSubparamMask |= subparamIdBit; |
| switch (subparamId) { |
| case SUBPARAM_MESSAGE_IDENTIFIER: |
| decodeMessageId(bData, inStream); |
| break; |
| case SUBPARAM_USER_DATA: |
| decodeUserData(bData, inStream); |
| break; |
| case SUBPARAM_USER_REPONSE_CODE: |
| decodeUserResponseCode(bData, inStream); |
| break; |
| case SUBPARAM_REPLY_OPTION: |
| decodeReplyOption(bData, inStream); |
| break; |
| case SUBPARAM_NUMBER_OF_MESSAGES: |
| decodeMsgCount(bData, inStream); |
| break; |
| case SUBPARAM_CALLBACK_NUMBER: |
| decodeCallbackNumber(bData, inStream); |
| break; |
| case SUBPARAM_MESSAGE_STATUS: |
| decodeMsgStatus(bData, inStream); |
| break; |
| case SUBPARAM_MESSAGE_CENTER_TIME_STAMP: |
| decodeMsgCenterTimeStamp(bData, inStream); |
| break; |
| case SUBPARAM_VALIDITY_PERIOD_ABSOLUTE: |
| decodeValidityAbs(bData, inStream); |
| break; |
| case SUBPARAM_VALIDITY_PERIOD_RELATIVE: |
| decodeValidityRel(bData, inStream); |
| break; |
| case SUBPARAM_DEFERRED_DELIVERY_TIME_ABSOLUTE: |
| decodeDeferredDeliveryAbs(bData, inStream); |
| break; |
| case SUBPARAM_DEFERRED_DELIVERY_TIME_RELATIVE: |
| decodeDeferredDeliveryRel(bData, inStream); |
| break; |
| case SUBPARAM_PRIVACY_INDICATOR: |
| decodePrivacyIndicator(bData, inStream); |
| break; |
| case SUBPARAM_LANGUAGE_INDICATOR: |
| decodeLanguageIndicator(bData, inStream); |
| break; |
| case SUBPARAM_MESSAGE_DISPLAY_MODE: |
| decodeDisplayMode(bData, inStream); |
| break; |
| case SUBPARAM_PRIORITY_INDICATOR: |
| decodePriorityIndicator(bData, inStream); |
| break; |
| case SUBPARAM_ALERT_ON_MESSAGE_DELIVERY: |
| decodeMsgDeliveryAlert(bData, inStream); |
| break; |
| case SUBPARAM_MESSAGE_DEPOSIT_INDEX: |
| decodeDepositIndex(bData, inStream); |
| break; |
| default: |
| throw new CodingException("unsupported bearer data subparameter (" |
| + subparamId + ")"); |
| } |
| } |
| if ((foundSubparamMask & (1 << SUBPARAM_MESSAGE_IDENTIFIER)) == 0) { |
| throw new CodingException("missing MESSAGE_IDENTIFIER subparam"); |
| } |
| if (bData.userData != null) { |
| decodeUserDataPayload(bData.userData, bData.hasUserDataHeader); |
| } |
| return bData; |
| } catch (BitwiseInputStream.AccessException ex) { |
| Log.e(LOG_TAG, "BearerData decode failed: " + ex); |
| } catch (CodingException ex) { |
| Log.e(LOG_TAG, "BearerData decode failed: " + ex); |
| } |
| return null; |
| } |
| } |
