1 /* 2 * Copyright (C) 2007-2008 Esmertec AG. 3 * Copyright (C) 2007-2008 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.google.android.mms.pdu; 19 20 import android.compat.annotation.UnsupportedAppUsage; 21 import android.content.ContentResolver; 22 import android.content.Context; 23 import android.text.TextUtils; 24 25 import java.io.ByteArrayOutputStream; 26 import java.io.FileNotFoundException; 27 import java.io.IOException; 28 import java.io.InputStream; 29 import java.util.Arrays; 30 import java.util.HashMap; 31 32 public class PduComposer { 33 /** 34 * Address type. 35 */ 36 static private final int PDU_PHONE_NUMBER_ADDRESS_TYPE = 1; 37 static private final int PDU_EMAIL_ADDRESS_TYPE = 2; 38 static private final int PDU_IPV4_ADDRESS_TYPE = 3; 39 static private final int PDU_IPV6_ADDRESS_TYPE = 4; 40 static private final int PDU_UNKNOWN_ADDRESS_TYPE = 5; 41 42 /** 43 * Address regular expression string. 44 */ 45 static final String REGEXP_PHONE_NUMBER_ADDRESS_TYPE = "\\+?[0-9|\\.|\\-]+"; 46 static final String REGEXP_EMAIL_ADDRESS_TYPE = "[a-zA-Z| ]*\\<{0,1}[a-zA-Z| ]+@{1}" + 47 "[a-zA-Z| ]+\\.{1}[a-zA-Z| ]+\\>{0,1}"; 48 static final String REGEXP_IPV6_ADDRESS_TYPE = 49 "[a-fA-F]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}" + 50 "[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}\\:{1}" + 51 "[a-fA-F0-9]{4}\\:{1}[a-fA-F0-9]{4}"; 52 static final String REGEXP_IPV4_ADDRESS_TYPE = "[0-9]{1,3}\\.{1}[0-9]{1,3}\\.{1}" + 53 "[0-9]{1,3}\\.{1}[0-9]{1,3}"; 54 55 /** 56 * The postfix strings of address. 57 */ 58 static final String STRING_PHONE_NUMBER_ADDRESS_TYPE = "/TYPE=PLMN"; 59 static final String STRING_IPV4_ADDRESS_TYPE = "/TYPE=IPV4"; 60 static final String STRING_IPV6_ADDRESS_TYPE = "/TYPE=IPV6"; 61 62 /** 63 * Error values. 64 */ 65 static private final int PDU_COMPOSE_SUCCESS = 0; 66 static private final int PDU_COMPOSE_CONTENT_ERROR = 1; 67 static private final int PDU_COMPOSE_FIELD_NOT_SET = 2; 68 static private final int PDU_COMPOSE_FIELD_NOT_SUPPORTED = 3; 69 70 /** 71 * WAP values defined in WSP spec. 72 */ 73 static private final int QUOTED_STRING_FLAG = 34; 74 static private final int END_STRING_FLAG = 0; 75 static private final int LENGTH_QUOTE = 31; 76 static private final int TEXT_MAX = 127; 77 static private final int SHORT_INTEGER_MAX = 127; 78 static private final int LONG_INTEGER_LENGTH_MAX = 8; 79 80 /** 81 * Block size when read data from InputStream. 82 */ 83 static private final int PDU_COMPOSER_BLOCK_SIZE = 1024; 84 85 /** 86 * The output message. 87 */ 88 @UnsupportedAppUsage 89 protected ByteArrayOutputStream mMessage = null; 90 91 /** 92 * The PDU. 93 */ 94 @UnsupportedAppUsage 95 private GenericPdu mPdu = null; 96 97 /** 98 * Current visiting position of the mMessage. 99 */ 100 @UnsupportedAppUsage 101 protected int mPosition = 0; 102 103 /** 104 * Message compose buffer stack. 105 */ 106 @UnsupportedAppUsage 107 private BufferStack mStack = null; 108 109 /** 110 * Content resolver. 111 */ 112 @UnsupportedAppUsage 113 private final ContentResolver mResolver; 114 115 /** 116 * Header of this pdu. 117 */ 118 @UnsupportedAppUsage 119 private PduHeaders mPduHeader = null; 120 121 /** 122 * Map of all content type 123 */ 124 @UnsupportedAppUsage 125 private static HashMap<String, Integer> mContentTypeMap = null; 126 127 static { 128 mContentTypeMap = new HashMap<String, Integer>(); 129 130 int i; 131 for (i = 0; i < PduContentTypes.contentTypes.length; i++) { mContentTypeMap.put(PduContentTypes.contentTypes[i], i)132 mContentTypeMap.put(PduContentTypes.contentTypes[i], i); 133 } 134 } 135 136 /** 137 * Constructor. 138 * 139 * @param context the context 140 * @param pdu the pdu to be composed 141 */ 142 @UnsupportedAppUsage PduComposer(Context context, GenericPdu pdu)143 public PduComposer(Context context, GenericPdu pdu) { 144 mPdu = pdu; 145 mResolver = context.getContentResolver(); 146 mPduHeader = pdu.getPduHeaders(); 147 mStack = new BufferStack(); 148 mMessage = new ByteArrayOutputStream(); 149 mPosition = 0; 150 } 151 152 /** 153 * Make the message. No need to check whether mandatory fields are set, 154 * because the constructors of outgoing pdus are taking care of this. 155 * 156 * @return OutputStream of maked message. Return null if 157 * the PDU is invalid. 158 */ 159 @UnsupportedAppUsage make()160 public byte[] make() { 161 // Get Message-type. 162 int type = mPdu.getMessageType(); 163 164 /* make the message */ 165 switch (type) { 166 case PduHeaders.MESSAGE_TYPE_SEND_REQ: 167 case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF: 168 if (makeSendRetrievePdu(type) != PDU_COMPOSE_SUCCESS) { 169 return null; 170 } 171 break; 172 case PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND: 173 if (makeNotifyResp() != PDU_COMPOSE_SUCCESS) { 174 return null; 175 } 176 break; 177 case PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND: 178 if (makeAckInd() != PDU_COMPOSE_SUCCESS) { 179 return null; 180 } 181 break; 182 case PduHeaders.MESSAGE_TYPE_READ_REC_IND: 183 if (makeReadRecInd() != PDU_COMPOSE_SUCCESS) { 184 return null; 185 } 186 break; 187 default: 188 return null; 189 } 190 191 return mMessage.toByteArray(); 192 } 193 194 /** 195 * Copy buf to mMessage. 196 */ 197 @UnsupportedAppUsage arraycopy(byte[] buf, int pos, int length)198 protected void arraycopy(byte[] buf, int pos, int length) { 199 mMessage.write(buf, pos, length); 200 mPosition = mPosition + length; 201 } 202 203 /** 204 * Append a byte to mMessage. 205 */ append(int value)206 protected void append(int value) { 207 mMessage.write(value); 208 mPosition ++; 209 } 210 211 /** 212 * Append short integer value to mMessage. 213 * This implementation doesn't check the validity of parameter, since it 214 * assumes that the values are validated in the GenericPdu setter methods. 215 */ 216 @UnsupportedAppUsage appendShortInteger(int value)217 protected void appendShortInteger(int value) { 218 /* 219 * From WAP-230-WSP-20010705-a: 220 * Short-integer = OCTET 221 * ; Integers in range 0-127 shall be encoded as a one octet value 222 * ; with the most significant bit set to one (1xxx xxxx) and with 223 * ; the value in the remaining least significant bits. 224 * In our implementation, only low 7 bits are stored and otherwise 225 * bits are ignored. 226 */ 227 append((value | 0x80) & 0xff); 228 } 229 230 /** 231 * Append an octet number between 128 and 255 into mMessage. 232 * NOTE: 233 * A value between 0 and 127 should be appended by using appendShortInteger. 234 * This implementation doesn't check the validity of parameter, since it 235 * assumes that the values are validated in the GenericPdu setter methods. 236 */ 237 @UnsupportedAppUsage appendOctet(int number)238 protected void appendOctet(int number) { 239 append(number); 240 } 241 242 /** 243 * Append a short length into mMessage. 244 * This implementation doesn't check the validity of parameter, since it 245 * assumes that the values are validated in the GenericPdu setter methods. 246 */ appendShortLength(int value)247 protected void appendShortLength(int value) { 248 /* 249 * From WAP-230-WSP-20010705-a: 250 * Short-length = <Any octet 0-30> 251 */ 252 append(value); 253 } 254 255 /** 256 * Append long integer into mMessage. it's used for really long integers. 257 * This implementation doesn't check the validity of parameter, since it 258 * assumes that the values are validated in the GenericPdu setter methods. 259 */ 260 @UnsupportedAppUsage appendLongInteger(long longInt)261 protected void appendLongInteger(long longInt) { 262 /* 263 * From WAP-230-WSP-20010705-a: 264 * Long-integer = Short-length Multi-octet-integer 265 * ; The Short-length indicates the length of the Multi-octet-integer 266 * Multi-octet-integer = 1*30 OCTET 267 * ; The content octets shall be an unsigned integer value with the 268 * ; most significant octet encoded first (big-endian representation). 269 * ; The minimum number of octets must be used to encode the value. 270 */ 271 int size; 272 long temp = longInt; 273 274 // Count the length of the long integer. 275 for(size = 0; (temp != 0) && (size < LONG_INTEGER_LENGTH_MAX); size++) { 276 temp = (temp >>> 8); 277 } 278 279 // Set Length. 280 appendShortLength(size); 281 282 // Count and set the long integer. 283 int i; 284 int shift = (size -1) * 8; 285 286 for (i = 0; i < size; i++) { 287 append((int)((longInt >>> shift) & 0xff)); 288 shift = shift - 8; 289 } 290 } 291 292 /** 293 * Append text string into mMessage. 294 * This implementation doesn't check the validity of parameter, since it 295 * assumes that the values are validated in the GenericPdu setter methods. 296 */ 297 @UnsupportedAppUsage appendTextString(byte[] text)298 protected void appendTextString(byte[] text) { 299 /* 300 * From WAP-230-WSP-20010705-a: 301 * Text-string = [Quote] *TEXT End-of-string 302 * ; If the first character in the TEXT is in the range of 128-255, 303 * ; a Quote character must precede it. Otherwise the Quote character 304 * ;must be omitted. The Quote is not part of the contents. 305 */ 306 if (((text[0])&0xff) > TEXT_MAX) { // No need to check for <= 255 307 append(TEXT_MAX); 308 } 309 310 arraycopy(text, 0, text.length); 311 append(0); 312 } 313 314 /** 315 * Append text string into mMessage. 316 * This implementation doesn't check the validity of parameter, since it 317 * assumes that the values are validated in the GenericPdu setter methods. 318 */ 319 @UnsupportedAppUsage appendTextString(String str)320 protected void appendTextString(String str) { 321 /* 322 * From WAP-230-WSP-20010705-a: 323 * Text-string = [Quote] *TEXT End-of-string 324 * ; If the first character in the TEXT is in the range of 128-255, 325 * ; a Quote character must precede it. Otherwise the Quote character 326 * ;must be omitted. The Quote is not part of the contents. 327 */ 328 appendTextString(str.getBytes()); 329 } 330 331 /** 332 * Append encoded string value to mMessage. 333 * This implementation doesn't check the validity of parameter, since it 334 * assumes that the values are validated in the GenericPdu setter methods. 335 */ 336 @UnsupportedAppUsage appendEncodedString(EncodedStringValue enStr)337 protected void appendEncodedString(EncodedStringValue enStr) { 338 /* 339 * From OMA-TS-MMS-ENC-V1_3-20050927-C: 340 * Encoded-string-value = Text-string | Value-length Char-set Text-string 341 */ 342 assert(enStr != null); 343 344 int charset = enStr.getCharacterSet(); 345 byte[] textString = enStr.getTextString(); 346 if (null == textString) { 347 return; 348 } 349 350 /* 351 * In the implementation of EncodedStringValue, the charset field will 352 * never be 0. It will always be composed as 353 * Encoded-string-value = Value-length Char-set Text-string 354 */ 355 mStack.newbuf(); 356 PositionMarker start = mStack.mark(); 357 358 appendShortInteger(charset); 359 appendTextString(textString); 360 361 int len = start.getLength(); 362 mStack.pop(); 363 appendValueLength(len); 364 mStack.copy(); 365 } 366 367 /** 368 * Append uintvar integer into mMessage. 369 * This implementation doesn't check the validity of parameter, since it 370 * assumes that the values are validated in the GenericPdu setter methods. 371 */ 372 @UnsupportedAppUsage appendUintvarInteger(long value)373 protected void appendUintvarInteger(long value) { 374 /* 375 * From WAP-230-WSP-20010705-a: 376 * To encode a large unsigned integer, split it into 7-bit fragments 377 * and place them in the payloads of multiple octets. The most significant 378 * bits are placed in the first octets with the least significant bits 379 * ending up in the last octet. All octets MUST set the Continue bit to 1 380 * except the last octet, which MUST set the Continue bit to 0. 381 */ 382 int i; 383 long max = SHORT_INTEGER_MAX; 384 385 for (i = 0; i < 5; i++) { 386 if (value < max) { 387 break; 388 } 389 390 max = (max << 7) | 0x7fl; 391 } 392 393 while(i > 0) { 394 long temp = value >>> (i * 7); 395 temp = temp & 0x7f; 396 397 append((int)((temp | 0x80) & 0xff)); 398 399 i--; 400 } 401 402 append((int)(value & 0x7f)); 403 } 404 405 /** 406 * Append date value into mMessage. 407 * This implementation doesn't check the validity of parameter, since it 408 * assumes that the values are validated in the GenericPdu setter methods. 409 */ appendDateValue(long date)410 protected void appendDateValue(long date) { 411 /* 412 * From OMA-TS-MMS-ENC-V1_3-20050927-C: 413 * Date-value = Long-integer 414 */ 415 appendLongInteger(date); 416 } 417 418 /** 419 * Append value length to mMessage. 420 * This implementation doesn't check the validity of parameter, since it 421 * assumes that the values are validated in the GenericPdu setter methods. 422 */ 423 @UnsupportedAppUsage appendValueLength(long value)424 protected void appendValueLength(long value) { 425 /* 426 * From WAP-230-WSP-20010705-a: 427 * Value-length = Short-length | (Length-quote Length) 428 * ; Value length is used to indicate the length of the value to follow 429 * Short-length = <Any octet 0-30> 430 * Length-quote = <Octet 31> 431 * Length = Uintvar-integer 432 */ 433 if (value < LENGTH_QUOTE) { 434 appendShortLength((int) value); 435 return; 436 } 437 438 append(LENGTH_QUOTE); 439 appendUintvarInteger(value); 440 } 441 442 /** 443 * Append quoted string to mMessage. 444 * This implementation doesn't check the validity of parameter, since it 445 * assumes that the values are validated in the GenericPdu setter methods. 446 */ 447 @UnsupportedAppUsage appendQuotedString(byte[] text)448 protected void appendQuotedString(byte[] text) { 449 /* 450 * From WAP-230-WSP-20010705-a: 451 * Quoted-string = <Octet 34> *TEXT End-of-string 452 * ;The TEXT encodes an RFC2616 Quoted-string with the enclosing 453 * ;quotation-marks <"> removed. 454 */ 455 append(QUOTED_STRING_FLAG); 456 arraycopy(text, 0, text.length); 457 append(END_STRING_FLAG); 458 } 459 460 /** 461 * Append quoted string to mMessage. 462 * This implementation doesn't check the validity of parameter, since it 463 * assumes that the values are validated in the GenericPdu setter methods. 464 */ 465 @UnsupportedAppUsage appendQuotedString(String str)466 protected void appendQuotedString(String str) { 467 /* 468 * From WAP-230-WSP-20010705-a: 469 * Quoted-string = <Octet 34> *TEXT End-of-string 470 * ;The TEXT encodes an RFC2616 Quoted-string with the enclosing 471 * ;quotation-marks <"> removed. 472 */ 473 appendQuotedString(str.getBytes()); 474 } 475 appendAddressType(EncodedStringValue address)476 private EncodedStringValue appendAddressType(EncodedStringValue address) { 477 EncodedStringValue temp = null; 478 479 try { 480 int addressType = checkAddressType(address.getString()); 481 temp = EncodedStringValue.copy(address); 482 if (PDU_PHONE_NUMBER_ADDRESS_TYPE == addressType) { 483 // Phone number. 484 temp.appendTextString(STRING_PHONE_NUMBER_ADDRESS_TYPE.getBytes()); 485 } else if (PDU_IPV4_ADDRESS_TYPE == addressType) { 486 // Ipv4 address. 487 temp.appendTextString(STRING_IPV4_ADDRESS_TYPE.getBytes()); 488 } else if (PDU_IPV6_ADDRESS_TYPE == addressType) { 489 // Ipv6 address. 490 temp.appendTextString(STRING_IPV6_ADDRESS_TYPE.getBytes()); 491 } 492 } catch (NullPointerException e) { 493 return null; 494 } 495 496 return temp; 497 } 498 499 /** 500 * Append header to mMessage. 501 */ 502 @UnsupportedAppUsage appendHeader(int field)503 private int appendHeader(int field) { 504 switch (field) { 505 case PduHeaders.MMS_VERSION: 506 appendOctet(field); 507 508 int version = mPduHeader.getOctet(field); 509 if (0 == version) { 510 appendShortInteger(PduHeaders.CURRENT_MMS_VERSION); 511 } else { 512 appendShortInteger(version); 513 } 514 515 break; 516 517 case PduHeaders.MESSAGE_ID: 518 case PduHeaders.TRANSACTION_ID: 519 byte[] textString = mPduHeader.getTextString(field); 520 if (null == textString) { 521 return PDU_COMPOSE_FIELD_NOT_SET; 522 } 523 524 appendOctet(field); 525 appendTextString(textString); 526 break; 527 528 case PduHeaders.TO: 529 case PduHeaders.BCC: 530 case PduHeaders.CC: 531 EncodedStringValue[] addr = mPduHeader.getEncodedStringValues(field); 532 533 if (null == addr) { 534 return PDU_COMPOSE_FIELD_NOT_SET; 535 } 536 537 EncodedStringValue temp; 538 for (int i = 0; i < addr.length; i++) { 539 temp = appendAddressType(addr[i]); 540 if (temp == null) { 541 return PDU_COMPOSE_CONTENT_ERROR; 542 } 543 544 appendOctet(field); 545 appendEncodedString(temp); 546 } 547 break; 548 549 case PduHeaders.FROM: 550 // Value-length (Address-present-token Encoded-string-value | Insert-address-token) 551 appendOctet(field); 552 553 EncodedStringValue from = mPduHeader.getEncodedStringValue(field); 554 if ((from == null) 555 || TextUtils.isEmpty(from.getString()) 556 || new String(from.getTextString()).equals( 557 PduHeaders.FROM_INSERT_ADDRESS_TOKEN_STR)) { 558 // Length of from = 1 559 append(1); 560 // Insert-address-token = <Octet 129> 561 append(PduHeaders.FROM_INSERT_ADDRESS_TOKEN); 562 } else { 563 mStack.newbuf(); 564 PositionMarker fstart = mStack.mark(); 565 566 // Address-present-token = <Octet 128> 567 append(PduHeaders.FROM_ADDRESS_PRESENT_TOKEN); 568 569 temp = appendAddressType(from); 570 if (temp == null) { 571 return PDU_COMPOSE_CONTENT_ERROR; 572 } 573 574 appendEncodedString(temp); 575 576 int flen = fstart.getLength(); 577 mStack.pop(); 578 appendValueLength(flen); 579 mStack.copy(); 580 } 581 break; 582 583 case PduHeaders.READ_STATUS: 584 case PduHeaders.STATUS: 585 case PduHeaders.REPORT_ALLOWED: 586 case PduHeaders.PRIORITY: 587 case PduHeaders.DELIVERY_REPORT: 588 case PduHeaders.READ_REPORT: 589 case PduHeaders.RETRIEVE_STATUS: 590 int octet = mPduHeader.getOctet(field); 591 if (0 == octet) { 592 return PDU_COMPOSE_FIELD_NOT_SET; 593 } 594 595 appendOctet(field); 596 appendOctet(octet); 597 break; 598 599 case PduHeaders.DATE: 600 long date = mPduHeader.getLongInteger(field); 601 if (-1 == date) { 602 return PDU_COMPOSE_FIELD_NOT_SET; 603 } 604 605 appendOctet(field); 606 appendDateValue(date); 607 break; 608 609 case PduHeaders.SUBJECT: 610 case PduHeaders.RETRIEVE_TEXT: 611 EncodedStringValue enString = 612 mPduHeader.getEncodedStringValue(field); 613 if (null == enString) { 614 return PDU_COMPOSE_FIELD_NOT_SET; 615 } 616 617 appendOctet(field); 618 appendEncodedString(enString); 619 break; 620 621 case PduHeaders.MESSAGE_CLASS: 622 byte[] messageClass = mPduHeader.getTextString(field); 623 if (null == messageClass) { 624 return PDU_COMPOSE_FIELD_NOT_SET; 625 } 626 627 appendOctet(field); 628 if (Arrays.equals(messageClass, 629 PduHeaders.MESSAGE_CLASS_ADVERTISEMENT_STR.getBytes())) { 630 appendOctet(PduHeaders.MESSAGE_CLASS_ADVERTISEMENT); 631 } else if (Arrays.equals(messageClass, 632 PduHeaders.MESSAGE_CLASS_AUTO_STR.getBytes())) { 633 appendOctet(PduHeaders.MESSAGE_CLASS_AUTO); 634 } else if (Arrays.equals(messageClass, 635 PduHeaders.MESSAGE_CLASS_PERSONAL_STR.getBytes())) { 636 appendOctet(PduHeaders.MESSAGE_CLASS_PERSONAL); 637 } else if (Arrays.equals(messageClass, 638 PduHeaders.MESSAGE_CLASS_INFORMATIONAL_STR.getBytes())) { 639 appendOctet(PduHeaders.MESSAGE_CLASS_INFORMATIONAL); 640 } else { 641 appendTextString(messageClass); 642 } 643 break; 644 645 case PduHeaders.EXPIRY: 646 long expiry = mPduHeader.getLongInteger(field); 647 if (-1 == expiry) { 648 return PDU_COMPOSE_FIELD_NOT_SET; 649 } 650 651 appendOctet(field); 652 653 mStack.newbuf(); 654 PositionMarker expiryStart = mStack.mark(); 655 656 append(PduHeaders.VALUE_RELATIVE_TOKEN); 657 appendLongInteger(expiry); 658 659 int expiryLength = expiryStart.getLength(); 660 mStack.pop(); 661 appendValueLength(expiryLength); 662 mStack.copy(); 663 break; 664 665 default: 666 return PDU_COMPOSE_FIELD_NOT_SUPPORTED; 667 } 668 669 return PDU_COMPOSE_SUCCESS; 670 } 671 672 /** 673 * Make ReadRec.Ind. 674 */ makeReadRecInd()675 private int makeReadRecInd() { 676 if (mMessage == null) { 677 mMessage = new ByteArrayOutputStream(); 678 mPosition = 0; 679 } 680 681 // X-Mms-Message-Type 682 appendOctet(PduHeaders.MESSAGE_TYPE); 683 appendOctet(PduHeaders.MESSAGE_TYPE_READ_REC_IND); 684 685 // X-Mms-MMS-Version 686 if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) { 687 return PDU_COMPOSE_CONTENT_ERROR; 688 } 689 690 // Message-ID 691 if (appendHeader(PduHeaders.MESSAGE_ID) != PDU_COMPOSE_SUCCESS) { 692 return PDU_COMPOSE_CONTENT_ERROR; 693 } 694 695 // To 696 if (appendHeader(PduHeaders.TO) != PDU_COMPOSE_SUCCESS) { 697 return PDU_COMPOSE_CONTENT_ERROR; 698 } 699 700 // From 701 if (appendHeader(PduHeaders.FROM) != PDU_COMPOSE_SUCCESS) { 702 return PDU_COMPOSE_CONTENT_ERROR; 703 } 704 705 // Date Optional 706 appendHeader(PduHeaders.DATE); 707 708 // X-Mms-Read-Status 709 if (appendHeader(PduHeaders.READ_STATUS) != PDU_COMPOSE_SUCCESS) { 710 return PDU_COMPOSE_CONTENT_ERROR; 711 } 712 713 // X-Mms-Applic-ID Optional(not support) 714 // X-Mms-Reply-Applic-ID Optional(not support) 715 // X-Mms-Aux-Applic-Info Optional(not support) 716 717 return PDU_COMPOSE_SUCCESS; 718 } 719 720 /** 721 * Make NotifyResp.Ind. 722 */ makeNotifyResp()723 private int makeNotifyResp() { 724 if (mMessage == null) { 725 mMessage = new ByteArrayOutputStream(); 726 mPosition = 0; 727 } 728 729 // X-Mms-Message-Type 730 appendOctet(PduHeaders.MESSAGE_TYPE); 731 appendOctet(PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND); 732 733 // X-Mms-Transaction-ID 734 if (appendHeader(PduHeaders.TRANSACTION_ID) != PDU_COMPOSE_SUCCESS) { 735 return PDU_COMPOSE_CONTENT_ERROR; 736 } 737 738 // X-Mms-MMS-Version 739 if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) { 740 return PDU_COMPOSE_CONTENT_ERROR; 741 } 742 743 // X-Mms-Status 744 if (appendHeader(PduHeaders.STATUS) != PDU_COMPOSE_SUCCESS) { 745 return PDU_COMPOSE_CONTENT_ERROR; 746 } 747 748 // X-Mms-Report-Allowed Optional 749 appendHeader(PduHeaders.REPORT_ALLOWED); 750 751 return PDU_COMPOSE_SUCCESS; 752 } 753 754 /** 755 * Make Acknowledge.Ind. 756 */ makeAckInd()757 private int makeAckInd() { 758 if (mMessage == null) { 759 mMessage = new ByteArrayOutputStream(); 760 mPosition = 0; 761 } 762 763 // X-Mms-Message-Type 764 appendOctet(PduHeaders.MESSAGE_TYPE); 765 appendOctet(PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND); 766 767 // X-Mms-Transaction-ID 768 if (appendHeader(PduHeaders.TRANSACTION_ID) != PDU_COMPOSE_SUCCESS) { 769 return PDU_COMPOSE_CONTENT_ERROR; 770 } 771 772 // X-Mms-MMS-Version 773 if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) { 774 return PDU_COMPOSE_CONTENT_ERROR; 775 } 776 777 // X-Mms-Report-Allowed Optional 778 appendHeader(PduHeaders.REPORT_ALLOWED); 779 780 return PDU_COMPOSE_SUCCESS; 781 } 782 783 /** 784 * Make Send.req. 785 */ makeSendRetrievePdu(int type)786 private int makeSendRetrievePdu(int type) { 787 if (mMessage == null) { 788 mMessage = new ByteArrayOutputStream(); 789 mPosition = 0; 790 } 791 792 // X-Mms-Message-Type 793 appendOctet(PduHeaders.MESSAGE_TYPE); 794 appendOctet(type); 795 796 // X-Mms-Transaction-ID 797 appendOctet(PduHeaders.TRANSACTION_ID); 798 799 byte[] trid = mPduHeader.getTextString(PduHeaders.TRANSACTION_ID); 800 if (trid == null) { 801 // Transaction-ID should be set(by Transaction) before make(). 802 throw new IllegalArgumentException("Transaction-ID is null."); 803 } 804 appendTextString(trid); 805 806 // X-Mms-MMS-Version 807 if (appendHeader(PduHeaders.MMS_VERSION) != PDU_COMPOSE_SUCCESS) { 808 return PDU_COMPOSE_CONTENT_ERROR; 809 } 810 811 // Date Date-value Optional. 812 appendHeader(PduHeaders.DATE); 813 814 // From 815 if (appendHeader(PduHeaders.FROM) != PDU_COMPOSE_SUCCESS) { 816 return PDU_COMPOSE_CONTENT_ERROR; 817 } 818 819 boolean recipient = false; 820 821 // To 822 if (appendHeader(PduHeaders.TO) != PDU_COMPOSE_CONTENT_ERROR) { 823 recipient = true; 824 } 825 826 // Cc 827 if (appendHeader(PduHeaders.CC) != PDU_COMPOSE_CONTENT_ERROR) { 828 recipient = true; 829 } 830 831 // Bcc 832 if (appendHeader(PduHeaders.BCC) != PDU_COMPOSE_CONTENT_ERROR) { 833 recipient = true; 834 } 835 836 // Need at least one of "cc", "bcc" and "to". 837 if (false == recipient) { 838 return PDU_COMPOSE_CONTENT_ERROR; 839 } 840 841 // Subject Optional 842 appendHeader(PduHeaders.SUBJECT); 843 844 // X-Mms-Message-Class Optional 845 // Message-class-value = Class-identifier | Token-text 846 appendHeader(PduHeaders.MESSAGE_CLASS); 847 848 // X-Mms-Expiry Optional 849 appendHeader(PduHeaders.EXPIRY); 850 851 // X-Mms-Priority Optional 852 appendHeader(PduHeaders.PRIORITY); 853 854 // X-Mms-Delivery-Report Optional 855 appendHeader(PduHeaders.DELIVERY_REPORT); 856 857 // X-Mms-Read-Report Optional 858 appendHeader(PduHeaders.READ_REPORT); 859 860 if (type == PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF) { 861 // X-Mms-Retrieve-Status Optional 862 appendHeader(PduHeaders.RETRIEVE_STATUS); 863 // X-Mms-Retrieve-Text Optional 864 appendHeader(PduHeaders.RETRIEVE_TEXT); 865 } 866 867 868 // Content-Type 869 appendOctet(PduHeaders.CONTENT_TYPE); 870 871 // Message body 872 return makeMessageBody(type); 873 } 874 875 /** 876 * Make message body. 877 */ makeMessageBody(int type)878 private int makeMessageBody(int type) { 879 // 1. add body informations 880 mStack.newbuf(); // Switching buffer because we need to 881 882 PositionMarker ctStart = mStack.mark(); 883 884 // This contentTypeIdentifier should be used for type of attachment... 885 String contentType = new String(mPduHeader.getTextString(PduHeaders.CONTENT_TYPE)); 886 Integer contentTypeIdentifier = mContentTypeMap.get(contentType); 887 if (contentTypeIdentifier == null) { 888 // content type is mandatory 889 return PDU_COMPOSE_CONTENT_ERROR; 890 } 891 892 appendShortInteger(contentTypeIdentifier.intValue()); 893 894 // content-type parameter: start 895 PduBody body; 896 if (type == PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF) { 897 body = ((RetrieveConf) mPdu).getBody(); 898 } else { 899 body = ((SendReq) mPdu).getBody(); 900 } 901 if (null == body || body.getPartsNum() == 0) { 902 // empty message 903 appendUintvarInteger(0); 904 mStack.pop(); 905 mStack.copy(); 906 return PDU_COMPOSE_SUCCESS; 907 } 908 909 PduPart part; 910 try { 911 part = body.getPart(0); 912 913 byte[] start = part.getContentId(); 914 if (start != null) { 915 appendOctet(PduPart.P_DEP_START); 916 if (('<' == start[0]) && ('>' == start[start.length - 1])) { 917 appendTextString(start); 918 } else { 919 appendTextString("<" + new String(start) + ">"); 920 } 921 } 922 923 // content-type parameter: type 924 appendOctet(PduPart.P_CT_MR_TYPE); 925 appendTextString(part.getContentType()); 926 } 927 catch (ArrayIndexOutOfBoundsException e){ 928 e.printStackTrace(); 929 } 930 931 int ctLength = ctStart.getLength(); 932 mStack.pop(); 933 appendValueLength(ctLength); 934 mStack.copy(); 935 936 // 3. add content 937 int partNum = body.getPartsNum(); 938 appendUintvarInteger(partNum); 939 for (int i = 0; i < partNum; i++) { 940 part = body.getPart(i); 941 mStack.newbuf(); // Leaving space for header lengh and data length 942 PositionMarker attachment = mStack.mark(); 943 944 mStack.newbuf(); // Leaving space for Content-Type length 945 PositionMarker contentTypeBegin = mStack.mark(); 946 947 byte[] partContentType = part.getContentType(); 948 949 if (partContentType == null) { 950 // content type is mandatory 951 return PDU_COMPOSE_CONTENT_ERROR; 952 } 953 954 // content-type value 955 Integer partContentTypeIdentifier = 956 mContentTypeMap.get(new String(partContentType)); 957 if (partContentTypeIdentifier == null) { 958 appendTextString(partContentType); 959 } else { 960 appendShortInteger(partContentTypeIdentifier.intValue()); 961 } 962 963 /* Content-type parameter : name. 964 * The value of name, filename, content-location is the same. 965 * Just one of them is enough for this PDU. 966 */ 967 byte[] name = part.getName(); 968 969 if (null == name) { 970 name = part.getFilename(); 971 972 if (null == name) { 973 name = part.getContentLocation(); 974 975 if (null == name) { 976 /* at lease one of name, filename, Content-location 977 * should be available. 978 */ 979 return PDU_COMPOSE_CONTENT_ERROR; 980 } 981 } 982 } 983 appendOctet(PduPart.P_DEP_NAME); 984 appendTextString(name); 985 986 // content-type parameter : charset 987 int charset = part.getCharset(); 988 if (charset != 0) { 989 appendOctet(PduPart.P_CHARSET); 990 appendShortInteger(charset); 991 } 992 993 int contentTypeLength = contentTypeBegin.getLength(); 994 mStack.pop(); 995 appendValueLength(contentTypeLength); 996 mStack.copy(); 997 998 // content id 999 byte[] contentId = part.getContentId(); 1000 1001 if (null != contentId) { 1002 appendOctet(PduPart.P_CONTENT_ID); 1003 if (('<' == contentId[0]) && ('>' == contentId[contentId.length - 1])) { 1004 appendQuotedString(contentId); 1005 } else { 1006 appendQuotedString("<" + new String(contentId) + ">"); 1007 } 1008 } 1009 1010 // content-location 1011 byte[] contentLocation = part.getContentLocation(); 1012 if (null != contentLocation) { 1013 appendOctet(PduPart.P_CONTENT_LOCATION); 1014 appendTextString(contentLocation); 1015 } 1016 1017 // content 1018 int headerLength = attachment.getLength(); 1019 1020 int dataLength = 0; // Just for safety... 1021 byte[] partData = part.getData(); 1022 1023 if (partData != null) { 1024 arraycopy(partData, 0, partData.length); 1025 dataLength = partData.length; 1026 } else { 1027 InputStream cr = null; 1028 try { 1029 byte[] buffer = new byte[PDU_COMPOSER_BLOCK_SIZE]; 1030 cr = mResolver.openInputStream(part.getDataUri()); 1031 int len = 0; 1032 while ((len = cr.read(buffer)) != -1) { 1033 mMessage.write(buffer, 0, len); 1034 mPosition += len; 1035 dataLength += len; 1036 } 1037 } catch (FileNotFoundException e) { 1038 return PDU_COMPOSE_CONTENT_ERROR; 1039 } catch (IOException e) { 1040 return PDU_COMPOSE_CONTENT_ERROR; 1041 } catch (RuntimeException e) { 1042 return PDU_COMPOSE_CONTENT_ERROR; 1043 } finally { 1044 if (cr != null) { 1045 try { 1046 cr.close(); 1047 } catch (IOException e) { 1048 } 1049 } 1050 } 1051 } 1052 1053 if (dataLength != (attachment.getLength() - headerLength)) { 1054 throw new RuntimeException("BUG: Length correctness check failed"); 1055 } 1056 1057 mStack.pop(); 1058 appendUintvarInteger(headerLength); 1059 appendUintvarInteger(dataLength); 1060 mStack.copy(); 1061 } 1062 1063 return PDU_COMPOSE_SUCCESS; 1064 } 1065 1066 /** 1067 * Record current message informations. 1068 */ 1069 static private class LengthRecordNode { 1070 ByteArrayOutputStream currentMessage = null; 1071 public int currentPosition = 0; 1072 1073 public LengthRecordNode next = null; 1074 } 1075 1076 /** 1077 * Mark current message position and stact size. 1078 */ 1079 private class PositionMarker { 1080 private int c_pos; // Current position 1081 private int currentStackSize; // Current stack size 1082 1083 @UnsupportedAppUsage getLength()1084 int getLength() { 1085 // If these assert fails, likely that you are finding the 1086 // size of buffer that is deep in BufferStack you can only 1087 // find the length of the buffer that is on top 1088 if (currentStackSize != mStack.stackSize) { 1089 throw new RuntimeException("BUG: Invalid call to getLength()"); 1090 } 1091 1092 return mPosition - c_pos; 1093 } 1094 } 1095 1096 /** 1097 * This implementation can be OPTIMIZED to use only 1098 * 2 buffers. This optimization involves changing BufferStack 1099 * only... Its usage (interface) will not change. 1100 */ 1101 private class BufferStack { 1102 private LengthRecordNode stack = null; 1103 private LengthRecordNode toCopy = null; 1104 1105 int stackSize = 0; 1106 1107 /** 1108 * Create a new message buffer and push it into the stack. 1109 */ 1110 @UnsupportedAppUsage newbuf()1111 void newbuf() { 1112 // You can't create a new buff when toCopy != null 1113 // That is after calling pop() and before calling copy() 1114 // If you do, it is a bug 1115 if (toCopy != null) { 1116 throw new RuntimeException("BUG: Invalid newbuf() before copy()"); 1117 } 1118 1119 LengthRecordNode temp = new LengthRecordNode(); 1120 1121 temp.currentMessage = mMessage; 1122 temp.currentPosition = mPosition; 1123 1124 temp.next = stack; 1125 stack = temp; 1126 1127 stackSize = stackSize + 1; 1128 1129 mMessage = new ByteArrayOutputStream(); 1130 mPosition = 0; 1131 } 1132 1133 /** 1134 * Pop the message before and record current message in the stack. 1135 */ 1136 @UnsupportedAppUsage pop()1137 void pop() { 1138 ByteArrayOutputStream currentMessage = mMessage; 1139 int currentPosition = mPosition; 1140 1141 mMessage = stack.currentMessage; 1142 mPosition = stack.currentPosition; 1143 1144 toCopy = stack; 1145 // Re using the top element of the stack to avoid memory allocation 1146 1147 stack = stack.next; 1148 stackSize = stackSize - 1; 1149 1150 toCopy.currentMessage = currentMessage; 1151 toCopy.currentPosition = currentPosition; 1152 } 1153 1154 /** 1155 * Append current message to the message before. 1156 */ 1157 @UnsupportedAppUsage copy()1158 void copy() { 1159 arraycopy(toCopy.currentMessage.toByteArray(), 0, 1160 toCopy.currentPosition); 1161 1162 toCopy = null; 1163 } 1164 1165 /** 1166 * Mark current message position 1167 */ 1168 @UnsupportedAppUsage mark()1169 PositionMarker mark() { 1170 PositionMarker m = new PositionMarker(); 1171 1172 m.c_pos = mPosition; 1173 m.currentStackSize = stackSize; 1174 1175 return m; 1176 } 1177 } 1178 1179 /** 1180 * Check address type. 1181 * 1182 * @param address address string without the postfix stinng type, 1183 * such as "/TYPE=PLMN", "/TYPE=IPv6" and "/TYPE=IPv4" 1184 * @return PDU_PHONE_NUMBER_ADDRESS_TYPE if it is phone number, 1185 * PDU_EMAIL_ADDRESS_TYPE if it is email address, 1186 * PDU_IPV4_ADDRESS_TYPE if it is ipv4 address, 1187 * PDU_IPV6_ADDRESS_TYPE if it is ipv6 address, 1188 * PDU_UNKNOWN_ADDRESS_TYPE if it is unknown. 1189 */ checkAddressType(String address)1190 protected static int checkAddressType(String address) { 1191 /** 1192 * From OMA-TS-MMS-ENC-V1_3-20050927-C.pdf, section 8. 1193 * address = ( e-mail / device-address / alphanum-shortcode / num-shortcode) 1194 * e-mail = mailbox; to the definition of mailbox as described in 1195 * section 3.4 of [RFC2822], but excluding the 1196 * obsolete definitions as indicated by the "obs-" prefix. 1197 * device-address = ( global-phone-number "/TYPE=PLMN" ) 1198 * / ( ipv4 "/TYPE=IPv4" ) / ( ipv6 "/TYPE=IPv6" ) 1199 * / ( escaped-value "/TYPE=" address-type ) 1200 * 1201 * global-phone-number = ["+"] 1*( DIGIT / written-sep ) 1202 * written-sep =("-"/".") 1203 * 1204 * ipv4 = 1*3DIGIT 3( "." 1*3DIGIT ) ; IPv4 address value 1205 * 1206 * ipv6 = 4HEXDIG 7( ":" 4HEXDIG ) ; IPv6 address per RFC 2373 1207 */ 1208 1209 if (null == address) { 1210 return PDU_UNKNOWN_ADDRESS_TYPE; 1211 } 1212 1213 if (address.matches(REGEXP_IPV4_ADDRESS_TYPE)) { 1214 // Ipv4 address. 1215 return PDU_IPV4_ADDRESS_TYPE; 1216 }else if (address.matches(REGEXP_PHONE_NUMBER_ADDRESS_TYPE)) { 1217 // Phone number. 1218 return PDU_PHONE_NUMBER_ADDRESS_TYPE; 1219 } else if (address.matches(REGEXP_EMAIL_ADDRESS_TYPE)) { 1220 // Email address. 1221 return PDU_EMAIL_ADDRESS_TYPE; 1222 } else if (address.matches(REGEXP_IPV6_ADDRESS_TYPE)) { 1223 // Ipv6 address. 1224 return PDU_IPV6_ADDRESS_TYPE; 1225 } else { 1226 // Unknown address. 1227 return PDU_UNKNOWN_ADDRESS_TYPE; 1228 } 1229 } 1230 } 1231