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Diffstat (limited to 'telephony/java/com/android/internal/telephony/gsm/SmsMessage.java')
| -rw-r--r-- | telephony/java/com/android/internal/telephony/gsm/SmsMessage.java | 1177 |
1 files changed, 0 insertions, 1177 deletions
diff --git a/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java b/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java deleted file mode 100644 index da60584..0000000 --- a/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java +++ /dev/null @@ -1,1177 +0,0 @@ -/* - * Copyright (C) 2006 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.gsm; - -import android.telephony.PhoneNumberUtils; -import android.text.format.Time; -import android.util.Log; - -import com.android.internal.telephony.EncodeException; -import com.android.internal.telephony.GsmAlphabet; -import com.android.internal.telephony.IccUtils; -import com.android.internal.telephony.SmsHeader; -import com.android.internal.telephony.SmsMessageBase; - -import java.io.ByteArrayOutputStream; -import java.io.UnsupportedEncodingException; - -import static android.telephony.SmsMessage.ENCODING_16BIT; -import static android.telephony.SmsMessage.ENCODING_7BIT; -import static android.telephony.SmsMessage.ENCODING_8BIT; -import static android.telephony.SmsMessage.ENCODING_KSC5601; -import static android.telephony.SmsMessage.ENCODING_UNKNOWN; -import static android.telephony.SmsMessage.MAX_USER_DATA_BYTES; -import static android.telephony.SmsMessage.MAX_USER_DATA_BYTES_WITH_HEADER; -import static android.telephony.SmsMessage.MAX_USER_DATA_SEPTETS; -import static android.telephony.SmsMessage.MessageClass; - -/** - * A Short Message Service message. - * - */ -public class SmsMessage extends SmsMessageBase { - static final String LOG_TAG = "GSM"; - - private MessageClass messageClass; - - /** - * TP-Message-Type-Indicator - * 9.2.3 - */ - private int mti; - - /** TP-Protocol-Identifier (TP-PID) */ - private int protocolIdentifier; - - // TP-Data-Coding-Scheme - // see TS 23.038 - private int dataCodingScheme; - - // TP-Reply-Path - // e.g. 23.040 9.2.2.1 - private boolean replyPathPresent = false; - - // "Message Marked for Automatic Deletion Group" - // 23.038 Section 4 - private boolean automaticDeletion; - - /** True if Status Report is for SMS-SUBMIT; false for SMS-COMMAND. */ - private boolean forSubmit; - - /** The address of the receiver. */ - private GsmSmsAddress recipientAddress; - - /** Time when SMS-SUBMIT was delivered from SC to MSE. */ - private long dischargeTimeMillis; - - /** - * TP-Status - status of a previously submitted SMS. - * This field applies to SMS-STATUS-REPORT messages. 0 indicates success; - * see TS 23.040, 9.2.3.15 for description of other possible values. - */ - private int status; - - /** - * TP-Status - status of a previously submitted SMS. - * This field is true iff the message is a SMS-STATUS-REPORT message. - */ - private boolean isStatusReportMessage = false; - - public static class SubmitPdu extends SubmitPduBase { - } - - /** - * Create an SmsMessage from a raw PDU. - */ - public static SmsMessage createFromPdu(byte[] pdu) { - try { - SmsMessage msg = new SmsMessage(); - msg.parsePdu(pdu); - return msg; - } catch (RuntimeException ex) { - Log.e(LOG_TAG, "SMS PDU parsing failed: ", ex); - return null; - } - } - - /** - * 3GPP TS 23.040 9.2.3.9 specifies that Type Zero messages are indicated - * by TP_PID field set to value 0x40 - */ - public boolean isTypeZero() { - return (protocolIdentifier == 0x40); - } - - /** - * TS 27.005 3.4.1 lines[0] and lines[1] are the two lines read from the - * +CMT unsolicited response (PDU mode, of course) - * +CMT: [<alpha>],<length><CR><LF><pdu> - * - * Only public for debugging - * - * {@hide} - */ - public static SmsMessage newFromCMT(String[] lines) { - try { - SmsMessage msg = new SmsMessage(); - msg.parsePdu(IccUtils.hexStringToBytes(lines[1])); - return msg; - } catch (RuntimeException ex) { - Log.e(LOG_TAG, "SMS PDU parsing failed: ", ex); - return null; - } - } - - /** @hide */ - public static SmsMessage newFromCDS(String line) { - try { - SmsMessage msg = new SmsMessage(); - msg.parsePdu(IccUtils.hexStringToBytes(line)); - return msg; - } catch (RuntimeException ex) { - Log.e(LOG_TAG, "CDS SMS PDU parsing failed: ", ex); - return null; - } - } - - /** - * Create an SmsMessage from an SMS EF record. - * - * @param index Index of SMS record. This should be index in ArrayList - * returned by SmsManager.getAllMessagesFromSim + 1. - * @param data Record data. - * @return An SmsMessage representing the record. - * - * @hide - */ - public static SmsMessage createFromEfRecord(int index, byte[] data) { - try { - SmsMessage msg = new SmsMessage(); - - msg.indexOnIcc = index; - - // First byte is status: RECEIVED_READ, RECEIVED_UNREAD, STORED_SENT, - // or STORED_UNSENT - // See TS 51.011 10.5.3 - if ((data[0] & 1) == 0) { - Log.w(LOG_TAG, - "SMS parsing failed: Trying to parse a free record"); - return null; - } else { - msg.statusOnIcc = data[0] & 0x07; - } - - int size = data.length - 1; - - // Note: Data may include trailing FF's. That's OK; message - // should still parse correctly. - byte[] pdu = new byte[size]; - System.arraycopy(data, 1, pdu, 0, size); - msg.parsePdu(pdu); - return msg; - } catch (RuntimeException ex) { - Log.e(LOG_TAG, "SMS PDU parsing failed: ", ex); - return null; - } - } - - /** - * Get the TP-Layer-Length for the given SMS-SUBMIT PDU Basically, the - * length in bytes (not hex chars) less the SMSC header - */ - public static int getTPLayerLengthForPDU(String pdu) { - int len = pdu.length() / 2; - int smscLen = Integer.parseInt(pdu.substring(0, 2), 16); - - return len - smscLen - 1; - } - - /** - * Get an SMS-SUBMIT PDU for a destination address and a message - * - * @param scAddress Service Centre address. Null means use default. - * @return a <code>SubmitPdu</code> containing the encoded SC - * address, if applicable, and the encoded message. - * Returns null on encode error. - * @hide - */ - public static SubmitPdu getSubmitPdu(String scAddress, - String destinationAddress, String message, - boolean statusReportRequested, byte[] header) { - return getSubmitPdu(scAddress, destinationAddress, message, statusReportRequested, header, - ENCODING_UNKNOWN, 0, 0); - } - - - /** - * Get an SMS-SUBMIT PDU for a destination address and a message using the - * specified encoding. - * - * @param scAddress Service Centre address. Null means use default. - * @param encoding Encoding defined by constants in android.telephony.SmsMessage.ENCODING_* - * @param languageTable - * @param languageShiftTable - * @return a <code>SubmitPdu</code> containing the encoded SC - * address, if applicable, and the encoded message. - * Returns null on encode error. - * @hide - */ - public static SubmitPdu getSubmitPdu(String scAddress, - String destinationAddress, String message, - boolean statusReportRequested, byte[] header, int encoding, - int languageTable, int languageShiftTable) { - - // Perform null parameter checks. - if (message == null || destinationAddress == null) { - return null; - } - - if (encoding == ENCODING_UNKNOWN) { - // Find the best encoding to use - TextEncodingDetails ted = calculateLength(message, false); - encoding = ted.codeUnitSize; - languageTable = ted.languageTable; - languageShiftTable = ted.languageShiftTable; - - if (encoding == ENCODING_7BIT && (languageTable != 0 || languageShiftTable != 0)) { - if (header != null) { - SmsHeader smsHeader = SmsHeader.fromByteArray(header); - if (smsHeader.languageTable != languageTable - || smsHeader.languageShiftTable != languageShiftTable) { - Log.w(LOG_TAG, "Updating language table in SMS header: " - + smsHeader.languageTable + " -> " + languageTable + ", " - + smsHeader.languageShiftTable + " -> " + languageShiftTable); - smsHeader.languageTable = languageTable; - smsHeader.languageShiftTable = languageShiftTable; - header = SmsHeader.toByteArray(smsHeader); - } - } else { - SmsHeader smsHeader = new SmsHeader(); - smsHeader.languageTable = languageTable; - smsHeader.languageShiftTable = languageShiftTable; - header = SmsHeader.toByteArray(smsHeader); - } - } - } - - SubmitPdu ret = new SubmitPdu(); - // MTI = SMS-SUBMIT, UDHI = header != null - byte mtiByte = (byte)(0x01 | (header != null ? 0x40 : 0x00)); - ByteArrayOutputStream bo = getSubmitPduHead( - scAddress, destinationAddress, mtiByte, - statusReportRequested, ret); - - // User Data (and length) - byte[] userData; - try { - if (encoding == ENCODING_7BIT) { - userData = GsmAlphabet.stringToGsm7BitPackedWithHeader(message, header, - languageTable, languageShiftTable); - } else { //assume UCS-2 - try { - userData = encodeUCS2(message, header); - } catch(UnsupportedEncodingException uex) { - Log.e(LOG_TAG, - "Implausible UnsupportedEncodingException ", - uex); - return null; - } - } - } catch (EncodeException ex) { - // Encoding to the 7-bit alphabet failed. Let's see if we can - // send it as a UCS-2 encoded message - try { - userData = encodeUCS2(message, header); - encoding = ENCODING_16BIT; - } catch(UnsupportedEncodingException uex) { - Log.e(LOG_TAG, - "Implausible UnsupportedEncodingException ", - uex); - return null; - } - } - - if (encoding == ENCODING_7BIT) { - if ((0xff & userData[0]) > MAX_USER_DATA_SEPTETS) { - // Message too long - Log.e(LOG_TAG, "Message too long (" + (0xff & userData[0]) + " septets)"); - return null; - } - // TP-Data-Coding-Scheme - // Default encoding, uncompressed - // To test writing messages to the SIM card, change this value 0x00 - // to 0x12, which means "bits 1 and 0 contain message class, and the - // class is 2". Note that this takes effect for the sender. In other - // words, messages sent by the phone with this change will end up on - // the receiver's SIM card. You can then send messages to yourself - // (on a phone with this change) and they'll end up on the SIM card. - bo.write(0x00); - } else { // assume UCS-2 - if ((0xff & userData[0]) > MAX_USER_DATA_BYTES) { - // Message too long - Log.e(LOG_TAG, "Message too long (" + (0xff & userData[0]) + " bytes)"); - return null; - } - // TP-Data-Coding-Scheme - // UCS-2 encoding, uncompressed - bo.write(0x08); - } - - // (no TP-Validity-Period) - bo.write(userData, 0, userData.length); - ret.encodedMessage = bo.toByteArray(); - return ret; - } - - /** - * Packs header and UCS-2 encoded message. Includes TP-UDL & TP-UDHL if necessary - * - * @return - * @throws UnsupportedEncodingException - */ - private static byte[] encodeUCS2(String message, byte[] header) - throws UnsupportedEncodingException { - byte[] userData, textPart; - textPart = message.getBytes("utf-16be"); - - if (header != null) { - // Need 1 byte for UDHL - userData = new byte[header.length + textPart.length + 1]; - - userData[0] = (byte)header.length; - System.arraycopy(header, 0, userData, 1, header.length); - System.arraycopy(textPart, 0, userData, header.length + 1, textPart.length); - } - else { - userData = textPart; - } - byte[] ret = new byte[userData.length+1]; - ret[0] = (byte) (userData.length & 0xff ); - System.arraycopy(userData, 0, ret, 1, userData.length); - return ret; - } - - /** - * Get an SMS-SUBMIT PDU for a destination address and a message - * - * @param scAddress Service Centre address. Null means use default. - * @return a <code>SubmitPdu</code> containing the encoded SC - * address, if applicable, and the encoded message. - * Returns null on encode error. - */ - public static SubmitPdu getSubmitPdu(String scAddress, - String destinationAddress, String message, - boolean statusReportRequested) { - - return getSubmitPdu(scAddress, destinationAddress, message, statusReportRequested, null); - } - - /** - * Get an SMS-SUBMIT PDU for a data message to a destination address & port - * - * @param scAddress Service Centre address. null == use default - * @param destinationAddress the address of the destination for the message - * @param destinationPort the port to deliver the message to at the - * destination - * @param data the data for the message - * @return a <code>SubmitPdu</code> containing the encoded SC - * address, if applicable, and the encoded message. - * Returns null on encode error. - */ - public static SubmitPdu getSubmitPdu(String scAddress, - String destinationAddress, int destinationPort, byte[] data, - boolean statusReportRequested) { - - SmsHeader.PortAddrs portAddrs = new SmsHeader.PortAddrs(); - portAddrs.destPort = destinationPort; - portAddrs.origPort = 0; - portAddrs.areEightBits = false; - - SmsHeader smsHeader = new SmsHeader(); - smsHeader.portAddrs = portAddrs; - - byte[] smsHeaderData = SmsHeader.toByteArray(smsHeader); - - if ((data.length + smsHeaderData.length + 1) > MAX_USER_DATA_BYTES) { - Log.e(LOG_TAG, "SMS data message may only contain " - + (MAX_USER_DATA_BYTES - smsHeaderData.length - 1) + " bytes"); - return null; - } - - SubmitPdu ret = new SubmitPdu(); - ByteArrayOutputStream bo = getSubmitPduHead( - scAddress, destinationAddress, (byte) 0x41, // MTI = SMS-SUBMIT, - // TP-UDHI = true - statusReportRequested, ret); - - // TP-Data-Coding-Scheme - // No class, 8 bit data - bo.write(0x04); - - // (no TP-Validity-Period) - - // Total size - bo.write(data.length + smsHeaderData.length + 1); - - // User data header - bo.write(smsHeaderData.length); - bo.write(smsHeaderData, 0, smsHeaderData.length); - - // User data - bo.write(data, 0, data.length); - - ret.encodedMessage = bo.toByteArray(); - return ret; - } - - /** - * Create the beginning of a SUBMIT PDU. This is the part of the - * SUBMIT PDU that is common to the two versions of {@link #getSubmitPdu}, - * one of which takes a byte array and the other of which takes a - * <code>String</code>. - * - * @param scAddress Service Centre address. null == use default - * @param destinationAddress the address of the destination for the message - * @param mtiByte - * @param ret <code>SubmitPdu</code> containing the encoded SC - * address, if applicable, and the encoded message - */ - private static ByteArrayOutputStream getSubmitPduHead( - String scAddress, String destinationAddress, byte mtiByte, - boolean statusReportRequested, SubmitPdu ret) { - ByteArrayOutputStream bo = new ByteArrayOutputStream( - MAX_USER_DATA_BYTES + 40); - - // SMSC address with length octet, or 0 - if (scAddress == null) { - ret.encodedScAddress = null; - } else { - ret.encodedScAddress = PhoneNumberUtils.networkPortionToCalledPartyBCDWithLength( - scAddress); - } - - // TP-Message-Type-Indicator (and friends) - if (statusReportRequested) { - // Set TP-Status-Report-Request bit. - mtiByte |= 0x20; - if (false) Log.d(LOG_TAG, "SMS status report requested"); - } - bo.write(mtiByte); - - // space for TP-Message-Reference - bo.write(0); - - byte[] daBytes; - - daBytes = PhoneNumberUtils.networkPortionToCalledPartyBCD(destinationAddress); - - // destination address length in BCD digits, ignoring TON byte and pad - // TODO Should be better. - bo.write((daBytes.length - 1) * 2 - - ((daBytes[daBytes.length - 1] & 0xf0) == 0xf0 ? 1 : 0)); - - // destination address - bo.write(daBytes, 0, daBytes.length); - - // TP-Protocol-Identifier - bo.write(0); - return bo; - } - - private static class PduParser { - byte pdu[]; - int cur; - SmsHeader userDataHeader; - byte[] userData; - int mUserDataSeptetPadding; - int mUserDataSize; - - PduParser(byte[] pdu) { - this.pdu = pdu; - cur = 0; - mUserDataSeptetPadding = 0; - } - - /** - * Parse and return the SC address prepended to SMS messages coming via - * the TS 27.005 / AT interface. Returns null on invalid address - */ - String getSCAddress() { - int len; - String ret; - - // length of SC Address - len = getByte(); - - if (len == 0) { - // no SC address - ret = null; - } else { - // SC address - try { - ret = PhoneNumberUtils - .calledPartyBCDToString(pdu, cur, len); - } catch (RuntimeException tr) { - Log.d(LOG_TAG, "invalid SC address: ", tr); - ret = null; - } - } - - cur += len; - - return ret; - } - - /** - * returns non-sign-extended byte value - */ - int getByte() { - return pdu[cur++] & 0xff; - } - - /** - * Any address except the SC address (eg, originating address) See TS - * 23.040 9.1.2.5 - */ - GsmSmsAddress getAddress() { - GsmSmsAddress ret; - - // "The Address-Length field is an integer representation of - // the number field, i.e. excludes any semi-octet containing only - // fill bits." - // The TOA field is not included as part of this - int addressLength = pdu[cur] & 0xff; - int lengthBytes = 2 + (addressLength + 1) / 2; - - ret = new GsmSmsAddress(pdu, cur, lengthBytes); - - cur += lengthBytes; - - return ret; - } - - /** - * Parses an SC timestamp and returns a currentTimeMillis()-style - * timestamp - */ - - long getSCTimestampMillis() { - // TP-Service-Centre-Time-Stamp - int year = IccUtils.gsmBcdByteToInt(pdu[cur++]); - int month = IccUtils.gsmBcdByteToInt(pdu[cur++]); - int day = IccUtils.gsmBcdByteToInt(pdu[cur++]); - int hour = IccUtils.gsmBcdByteToInt(pdu[cur++]); - int minute = IccUtils.gsmBcdByteToInt(pdu[cur++]); - int second = IccUtils.gsmBcdByteToInt(pdu[cur++]); - - // For the timezone, the most significant bit of the - // least significant nibble is the sign byte - // (meaning the max range of this field is 79 quarter-hours, - // which is more than enough) - - byte tzByte = pdu[cur++]; - - // Mask out sign bit. - int timezoneOffset = IccUtils.gsmBcdByteToInt((byte) (tzByte & (~0x08))); - - timezoneOffset = ((tzByte & 0x08) == 0) ? timezoneOffset : -timezoneOffset; - - Time time = new Time(Time.TIMEZONE_UTC); - - // It's 2006. Should I really support years < 2000? - time.year = year >= 90 ? year + 1900 : year + 2000; - time.month = month - 1; - time.monthDay = day; - time.hour = hour; - time.minute = minute; - time.second = second; - - // Timezone offset is in quarter hours. - return time.toMillis(true) - (timezoneOffset * 15 * 60 * 1000); - } - - /** - * Pulls the user data out of the PDU, and separates the payload from - * the header if there is one. - * - * @param hasUserDataHeader true if there is a user data header - * @param dataInSeptets true if the data payload is in septets instead - * of octets - * @return the number of septets or octets in the user data payload - */ - int constructUserData(boolean hasUserDataHeader, boolean dataInSeptets) { - int offset = cur; - int userDataLength = pdu[offset++] & 0xff; - int headerSeptets = 0; - int userDataHeaderLength = 0; - - if (hasUserDataHeader) { - userDataHeaderLength = pdu[offset++] & 0xff; - - byte[] udh = new byte[userDataHeaderLength]; - System.arraycopy(pdu, offset, udh, 0, userDataHeaderLength); - userDataHeader = SmsHeader.fromByteArray(udh); - offset += userDataHeaderLength; - - int headerBits = (userDataHeaderLength + 1) * 8; - headerSeptets = headerBits / 7; - headerSeptets += (headerBits % 7) > 0 ? 1 : 0; - mUserDataSeptetPadding = (headerSeptets * 7) - headerBits; - } - - int bufferLen; - if (dataInSeptets) { - /* - * Here we just create the user data length to be the remainder of - * the pdu minus the user data header, since userDataLength means - * the number of uncompressed septets. - */ - bufferLen = pdu.length - offset; - } else { - /* - * userDataLength is the count of octets, so just subtract the - * user data header. - */ - bufferLen = userDataLength - (hasUserDataHeader ? (userDataHeaderLength + 1) : 0); - if (bufferLen < 0) { - bufferLen = 0; - } - } - - userData = new byte[bufferLen]; - System.arraycopy(pdu, offset, userData, 0, userData.length); - cur = offset; - - if (dataInSeptets) { - // Return the number of septets - int count = userDataLength - headerSeptets; - // If count < 0, return 0 (means UDL was probably incorrect) - return count < 0 ? 0 : count; - } else { - // Return the number of octets - return userData.length; - } - } - - /** - * Returns the user data payload, not including the headers - * - * @return the user data payload, not including the headers - */ - byte[] getUserData() { - return userData; - } - - /** - * Returns the number of padding bits at the beginning of the user data - * array before the start of the septets. - * - * @return the number of padding bits at the beginning of the user data - * array before the start of the septets - */ - int getUserDataSeptetPadding() { - return mUserDataSeptetPadding; - } - - /** - * Returns an object representing the user data headers - * - * {@hide} - */ - SmsHeader getUserDataHeader() { - return userDataHeader; - } - - /** - * Interprets the user data payload as packed GSM 7bit characters, and - * decodes them into a String. - * - * @param septetCount the number of septets in the user data payload - * @return a String with the decoded characters - */ - String getUserDataGSM7Bit(int septetCount, int languageTable, - int languageShiftTable) { - String ret; - - ret = GsmAlphabet.gsm7BitPackedToString(pdu, cur, septetCount, - mUserDataSeptetPadding, languageTable, languageShiftTable); - - cur += (septetCount * 7) / 8; - - return ret; - } - - /** - * Interprets the user data payload as UCS2 characters, and - * decodes them into a String. - * - * @param byteCount the number of bytes in the user data payload - * @return a String with the decoded characters - */ - String getUserDataUCS2(int byteCount) { - String ret; - - try { - ret = new String(pdu, cur, byteCount, "utf-16"); - } catch (UnsupportedEncodingException ex) { - ret = ""; - Log.e(LOG_TAG, "implausible UnsupportedEncodingException", ex); - } - - cur += byteCount; - return ret; - } - - /** - * Interprets the user data payload as KSC-5601 characters, and - * decodes them into a String. - * - * @param byteCount the number of bytes in the user data payload - * @return a String with the decoded characters - */ - String getUserDataKSC5601(int byteCount) { - String ret; - - try { - ret = new String(pdu, cur, byteCount, "KSC5601"); - } catch (UnsupportedEncodingException ex) { - ret = ""; - Log.e(LOG_TAG, "implausible UnsupportedEncodingException", ex); - } - - cur += byteCount; - return ret; - } - - boolean moreDataPresent() { - return (pdu.length > cur); - } - } - - /** - * Calculate the number of septets needed to encode the message. - * - * @param msgBody the message to encode - * @param use7bitOnly ignore (but still count) illegal characters if true - * @return TextEncodingDetails - */ - public static TextEncodingDetails calculateLength(CharSequence msgBody, - boolean use7bitOnly) { - TextEncodingDetails ted = GsmAlphabet.countGsmSeptets(msgBody, use7bitOnly); - if (ted == null) { - ted = new TextEncodingDetails(); - int octets = msgBody.length() * 2; - ted.codeUnitCount = msgBody.length(); - if (octets > MAX_USER_DATA_BYTES) { - ted.msgCount = (octets + (MAX_USER_DATA_BYTES_WITH_HEADER - 1)) / - MAX_USER_DATA_BYTES_WITH_HEADER; - ted.codeUnitsRemaining = ((ted.msgCount * - MAX_USER_DATA_BYTES_WITH_HEADER) - octets) / 2; - } else { - ted.msgCount = 1; - ted.codeUnitsRemaining = (MAX_USER_DATA_BYTES - octets)/2; - } - ted.codeUnitSize = ENCODING_16BIT; - } - return ted; - } - - /** {@inheritDoc} */ - @Override - public int getProtocolIdentifier() { - return protocolIdentifier; - } - - /** - * Returns the TP-Data-Coding-Scheme byte, for acknowledgement of SMS-PP download messages. - * @return the TP-DCS field of the SMS header - */ - int getDataCodingScheme() { - return dataCodingScheme; - } - - /** {@inheritDoc} */ - @Override - public boolean isReplace() { - return (protocolIdentifier & 0xc0) == 0x40 - && (protocolIdentifier & 0x3f) > 0 - && (protocolIdentifier & 0x3f) < 8; - } - - /** {@inheritDoc} */ - @Override - public boolean isCphsMwiMessage() { - return ((GsmSmsAddress) originatingAddress).isCphsVoiceMessageClear() - || ((GsmSmsAddress) originatingAddress).isCphsVoiceMessageSet(); - } - - /** {@inheritDoc} */ - @Override - public boolean isMWIClearMessage() { - if (isMwi && !mwiSense) { - return true; - } - - return originatingAddress != null - && ((GsmSmsAddress) originatingAddress).isCphsVoiceMessageClear(); - } - - /** {@inheritDoc} */ - @Override - public boolean isMWISetMessage() { - if (isMwi && mwiSense) { - return true; - } - - return originatingAddress != null - && ((GsmSmsAddress) originatingAddress).isCphsVoiceMessageSet(); - } - - /** {@inheritDoc} */ - @Override - public boolean isMwiDontStore() { - if (isMwi && mwiDontStore) { - return true; - } - - if (isCphsMwiMessage()) { - // See CPHS 4.2 Section B.4.2.1 - // If the user data is a single space char, do not store - // the message. Otherwise, store and display as usual - if (" ".equals(getMessageBody())) { - ; - } - return true; - } - - return false; - } - - /** {@inheritDoc} */ - @Override - public int getStatus() { - return status; - } - - /** {@inheritDoc} */ - @Override - public boolean isStatusReportMessage() { - return isStatusReportMessage; - } - - /** {@inheritDoc} */ - @Override - public boolean isReplyPathPresent() { - return replyPathPresent; - } - - /** - * TS 27.005 3.1, <pdu> definition "In the case of SMS: 3GPP TS 24.011 [6] - * SC address followed by 3GPP TS 23.040 [3] TPDU in hexadecimal format: - * ME/TA converts each octet of TP data unit into two IRA character long - * hex number (e.g. octet with integer value 42 is presented to TE as two - * characters 2A (IRA 50 and 65))" ...in the case of cell broadcast, - * something else... - */ - private void parsePdu(byte[] pdu) { - mPdu = pdu; - // Log.d(LOG_TAG, "raw sms message:"); - // Log.d(LOG_TAG, s); - - PduParser p = new PduParser(pdu); - - scAddress = p.getSCAddress(); - - if (scAddress != null) { - if (false) Log.d(LOG_TAG, "SMS SC address: " + scAddress); - } - - // TODO(mkf) support reply path, user data header indicator - - // TP-Message-Type-Indicator - // 9.2.3 - int firstByte = p.getByte(); - - mti = firstByte & 0x3; - switch (mti) { - // TP-Message-Type-Indicator - // 9.2.3 - case 0: - case 3: //GSM 03.40 9.2.3.1: MTI == 3 is Reserved. - //This should be processed in the same way as MTI == 0 (Deliver) - parseSmsDeliver(p, firstByte); - break; - case 2: - parseSmsStatusReport(p, firstByte); - break; - default: - // TODO(mkf) the rest of these - throw new RuntimeException("Unsupported message type"); - } - } - - /** - * Parses a SMS-STATUS-REPORT message. - * - * @param p A PduParser, cued past the first byte. - * @param firstByte The first byte of the PDU, which contains MTI, etc. - */ - private void parseSmsStatusReport(PduParser p, int firstByte) { - isStatusReportMessage = true; - - // TP-Status-Report-Qualifier bit == 0 for SUBMIT - forSubmit = (firstByte & 0x20) == 0x00; - // TP-Message-Reference - messageRef = p.getByte(); - // TP-Recipient-Address - recipientAddress = p.getAddress(); - // TP-Service-Centre-Time-Stamp - scTimeMillis = p.getSCTimestampMillis(); - // TP-Discharge-Time - dischargeTimeMillis = p.getSCTimestampMillis(); - // TP-Status - status = p.getByte(); - - // The following are optional fields that may or may not be present. - if (p.moreDataPresent()) { - // TP-Parameter-Indicator - int extraParams = p.getByte(); - int moreExtraParams = extraParams; - while ((moreExtraParams & 0x80) != 0) { - // We only know how to parse a few extra parameters, all - // indicated in the first TP-PI octet, so skip over any - // additional TP-PI octets. - moreExtraParams = p.getByte(); - } - // TP-Protocol-Identifier - if ((extraParams & 0x01) != 0) { - protocolIdentifier = p.getByte(); - } - // TP-Data-Coding-Scheme - if ((extraParams & 0x02) != 0) { - dataCodingScheme = p.getByte(); - } - // TP-User-Data-Length (implies existence of TP-User-Data) - if ((extraParams & 0x04) != 0) { - boolean hasUserDataHeader = (firstByte & 0x40) == 0x40; - parseUserData(p, hasUserDataHeader); - } - } - } - - private void parseSmsDeliver(PduParser p, int firstByte) { - replyPathPresent = (firstByte & 0x80) == 0x80; - - originatingAddress = p.getAddress(); - - if (originatingAddress != null) { - if (false) Log.v(LOG_TAG, "SMS originating address: " - + originatingAddress.address); - } - - // TP-Protocol-Identifier (TP-PID) - // TS 23.040 9.2.3.9 - protocolIdentifier = p.getByte(); - - // TP-Data-Coding-Scheme - // see TS 23.038 - dataCodingScheme = p.getByte(); - - if (false) { - Log.v(LOG_TAG, "SMS TP-PID:" + protocolIdentifier - + " data coding scheme: " + dataCodingScheme); - } - - scTimeMillis = p.getSCTimestampMillis(); - - if (false) Log.d(LOG_TAG, "SMS SC timestamp: " + scTimeMillis); - - boolean hasUserDataHeader = (firstByte & 0x40) == 0x40; - - parseUserData(p, hasUserDataHeader); - } - - /** - * Parses the User Data of an SMS. - * - * @param p The current PduParser. - * @param hasUserDataHeader Indicates whether a header is present in the - * User Data. - */ - private void parseUserData(PduParser p, boolean hasUserDataHeader) { - boolean hasMessageClass = false; - boolean userDataCompressed = false; - - int encodingType = ENCODING_UNKNOWN; - - // Look up the data encoding scheme - if ((dataCodingScheme & 0x80) == 0) { - // Bits 7..4 == 0xxx - automaticDeletion = (0 != (dataCodingScheme & 0x40)); - userDataCompressed = (0 != (dataCodingScheme & 0x20)); - hasMessageClass = (0 != (dataCodingScheme & 0x10)); - - if (userDataCompressed) { - Log.w(LOG_TAG, "4 - Unsupported SMS data coding scheme " - + "(compression) " + (dataCodingScheme & 0xff)); - } else { - switch ((dataCodingScheme >> 2) & 0x3) { - case 0: // GSM 7 bit default alphabet - encodingType = ENCODING_7BIT; - break; - - case 2: // UCS 2 (16bit) - encodingType = ENCODING_16BIT; - break; - - case 1: // 8 bit data - case 3: // reserved - Log.w(LOG_TAG, "1 - Unsupported SMS data coding scheme " - + (dataCodingScheme & 0xff)); - encodingType = ENCODING_8BIT; - break; - } - } - } else if ((dataCodingScheme & 0xf0) == 0xf0) { - automaticDeletion = false; - hasMessageClass = true; - userDataCompressed = false; - - if (0 == (dataCodingScheme & 0x04)) { - // GSM 7 bit default alphabet - encodingType = ENCODING_7BIT; - } else { - // 8 bit data - encodingType = ENCODING_8BIT; - } - } else if ((dataCodingScheme & 0xF0) == 0xC0 - || (dataCodingScheme & 0xF0) == 0xD0 - || (dataCodingScheme & 0xF0) == 0xE0) { - // 3GPP TS 23.038 V7.0.0 (2006-03) section 4 - - // 0xC0 == 7 bit, don't store - // 0xD0 == 7 bit, store - // 0xE0 == UCS-2, store - - if ((dataCodingScheme & 0xF0) == 0xE0) { - encodingType = ENCODING_16BIT; - } else { - encodingType = ENCODING_7BIT; - } - - userDataCompressed = false; - boolean active = ((dataCodingScheme & 0x08) == 0x08); - - // bit 0x04 reserved - - if ((dataCodingScheme & 0x03) == 0x00) { - isMwi = true; - mwiSense = active; - mwiDontStore = ((dataCodingScheme & 0xF0) == 0xC0); - } else { - isMwi = false; - - Log.w(LOG_TAG, "MWI for fax, email, or other " - + (dataCodingScheme & 0xff)); - } - } else if ((dataCodingScheme & 0xC0) == 0x80) { - // 3GPP TS 23.038 V7.0.0 (2006-03) section 4 - // 0x80..0xBF == Reserved coding groups - if (dataCodingScheme == 0x84) { - // This value used for KSC5601 by carriers in Korea. - encodingType = ENCODING_KSC5601; - } else { - Log.w(LOG_TAG, "5 - Unsupported SMS data coding scheme " - + (dataCodingScheme & 0xff)); - } - } else { - Log.w(LOG_TAG, "3 - Unsupported SMS data coding scheme " - + (dataCodingScheme & 0xff)); - } - - // set both the user data and the user data header. - int count = p.constructUserData(hasUserDataHeader, - encodingType == ENCODING_7BIT); - this.userData = p.getUserData(); - this.userDataHeader = p.getUserDataHeader(); - - switch (encodingType) { - case ENCODING_UNKNOWN: - case ENCODING_8BIT: - messageBody = null; - break; - - case ENCODING_7BIT: - messageBody = p.getUserDataGSM7Bit(count, - hasUserDataHeader ? userDataHeader.languageTable : 0, - hasUserDataHeader ? userDataHeader.languageShiftTable : 0); - break; - - case ENCODING_16BIT: - messageBody = p.getUserDataUCS2(count); - break; - - case ENCODING_KSC5601: - messageBody = p.getUserDataKSC5601(count); - break; - } - - if (false) Log.v(LOG_TAG, "SMS message body (raw): '" + messageBody + "'"); - - if (messageBody != null) { - parseMessageBody(); - } - - if (!hasMessageClass) { - messageClass = MessageClass.UNKNOWN; - } else { - switch (dataCodingScheme & 0x3) { - case 0: - messageClass = MessageClass.CLASS_0; - break; - case 1: - messageClass = MessageClass.CLASS_1; - break; - case 2: - messageClass = MessageClass.CLASS_2; - break; - case 3: - messageClass = MessageClass.CLASS_3; - break; - } - } - } - - /** - * {@inheritDoc} - */ - @Override - public MessageClass getMessageClass() { - return messageClass; - } - - /** - * Returns true if this is a (U)SIM data download type SM. - * See 3GPP TS 31.111 section 9.1 and TS 23.040 section 9.2.3.9. - * - * @return true if this is a USIM data download message; false otherwise - */ - boolean isUsimDataDownload() { - return messageClass == MessageClass.CLASS_2 && - (protocolIdentifier == 0x7f || protocolIdentifier == 0x7c); - } -} |