Amit Mahajan | 82f245f | 2019-09-10 13:19:05 -0700 | [diff] [blame] | 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 | |
Artur Satayev | 9a5c310 | 2020-01-23 16:49:36 +0000 | [diff] [blame] | 20 | import android.compat.annotation.UnsupportedAppUsage; |
Amit Mahajan | 82f245f | 2019-09-10 13:19:05 -0700 | [diff] [blame] | 21 | import android.util.Log; |
| 22 | |
Amit Mahajan | 82f245f | 2019-09-10 13:19:05 -0700 | [diff] [blame] | 23 | import com.google.android.mms.ContentType; |
| 24 | import com.google.android.mms.InvalidHeaderValueException; |
| 25 | |
| 26 | import java.io.ByteArrayInputStream; |
| 27 | import java.io.ByteArrayOutputStream; |
| 28 | import java.io.UnsupportedEncodingException; |
| 29 | import java.util.Arrays; |
| 30 | import java.util.HashMap; |
| 31 | |
| 32 | public class PduParser { |
| 33 | /** |
| 34 | * The next are WAP values defined in WSP specification. |
| 35 | */ |
| 36 | private static final int QUOTE = 127; |
| 37 | private static final int LENGTH_QUOTE = 31; |
| 38 | private static final int TEXT_MIN = 32; |
| 39 | private static final int TEXT_MAX = 127; |
| 40 | private static final int SHORT_INTEGER_MAX = 127; |
| 41 | private static final int SHORT_LENGTH_MAX = 30; |
| 42 | private static final int LONG_INTEGER_LENGTH_MAX = 8; |
| 43 | private static final int QUOTED_STRING_FLAG = 34; |
| 44 | private static final int END_STRING_FLAG = 0x00; |
| 45 | //The next two are used by the interface "parseWapString" to |
| 46 | //distinguish Text-String and Quoted-String. |
| 47 | private static final int TYPE_TEXT_STRING = 0; |
| 48 | private static final int TYPE_QUOTED_STRING = 1; |
| 49 | private static final int TYPE_TOKEN_STRING = 2; |
| 50 | |
| 51 | /** |
| 52 | * Specify the part position. |
| 53 | */ |
| 54 | private static final int THE_FIRST_PART = 0; |
| 55 | private static final int THE_LAST_PART = 1; |
| 56 | |
| 57 | /** |
| 58 | * The pdu data. |
| 59 | */ |
| 60 | private ByteArrayInputStream mPduDataStream = null; |
| 61 | |
| 62 | /** |
| 63 | * Store pdu headers |
| 64 | */ |
| 65 | private PduHeaders mHeaders = null; |
| 66 | |
| 67 | /** |
| 68 | * Store pdu parts. |
| 69 | */ |
| 70 | private PduBody mBody = null; |
| 71 | |
| 72 | /** |
| 73 | * Store the "type" parameter in "Content-Type" header field. |
| 74 | */ |
| 75 | private static byte[] mTypeParam = null; |
| 76 | |
| 77 | /** |
| 78 | * Store the "start" parameter in "Content-Type" header field. |
| 79 | */ |
| 80 | private static byte[] mStartParam = null; |
| 81 | |
| 82 | /** |
| 83 | * The log tag. |
| 84 | */ |
| 85 | private static final String LOG_TAG = "PduParser"; |
| 86 | private static final boolean DEBUG = false; |
| 87 | private static final boolean LOCAL_LOGV = false; |
| 88 | |
| 89 | /** |
| 90 | * Whether to parse content-disposition part header |
| 91 | */ |
| 92 | private final boolean mParseContentDisposition; |
| 93 | |
| 94 | /** |
| 95 | * Constructor. |
| 96 | * |
| 97 | * @param pduDataStream pdu data to be parsed |
| 98 | * @param parseContentDisposition whether to parse the Content-Disposition part header |
| 99 | */ |
| 100 | @UnsupportedAppUsage |
| 101 | public PduParser(byte[] pduDataStream, boolean parseContentDisposition) { |
| 102 | mPduDataStream = new ByteArrayInputStream(pduDataStream); |
| 103 | mParseContentDisposition = parseContentDisposition; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Parse the pdu. |
| 108 | * |
| 109 | * @return the pdu structure if parsing successfully. |
| 110 | * null if parsing error happened or mandatory fields are not set. |
| 111 | */ |
| 112 | @UnsupportedAppUsage |
| 113 | public GenericPdu parse(){ |
| 114 | if (mPduDataStream == null) { |
| 115 | return null; |
| 116 | } |
| 117 | |
| 118 | /* parse headers */ |
| 119 | mHeaders = parseHeaders(mPduDataStream); |
| 120 | if (null == mHeaders) { |
| 121 | // Parse headers failed. |
| 122 | return null; |
| 123 | } |
| 124 | |
| 125 | /* get the message type */ |
| 126 | int messageType = mHeaders.getOctet(PduHeaders.MESSAGE_TYPE); |
| 127 | |
| 128 | /* check mandatory header fields */ |
| 129 | if (false == checkMandatoryHeader(mHeaders)) { |
| 130 | log("check mandatory headers failed!"); |
| 131 | return null; |
| 132 | } |
| 133 | |
| 134 | if ((PduHeaders.MESSAGE_TYPE_SEND_REQ == messageType) || |
| 135 | (PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF == messageType)) { |
| 136 | /* need to parse the parts */ |
| 137 | mBody = parseParts(mPduDataStream); |
| 138 | if (null == mBody) { |
| 139 | // Parse parts failed. |
| 140 | return null; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | switch (messageType) { |
| 145 | case PduHeaders.MESSAGE_TYPE_SEND_REQ: |
| 146 | if (LOCAL_LOGV) { |
| 147 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_SEND_REQ"); |
| 148 | } |
| 149 | SendReq sendReq = new SendReq(mHeaders, mBody); |
| 150 | return sendReq; |
| 151 | case PduHeaders.MESSAGE_TYPE_SEND_CONF: |
| 152 | if (LOCAL_LOGV) { |
| 153 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_SEND_CONF"); |
| 154 | } |
| 155 | SendConf sendConf = new SendConf(mHeaders); |
| 156 | return sendConf; |
| 157 | case PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND: |
| 158 | if (LOCAL_LOGV) { |
| 159 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_NOTIFICATION_IND"); |
| 160 | } |
| 161 | NotificationInd notificationInd = |
| 162 | new NotificationInd(mHeaders); |
| 163 | return notificationInd; |
| 164 | case PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND: |
| 165 | if (LOCAL_LOGV) { |
| 166 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_NOTIFYRESP_IND"); |
| 167 | } |
| 168 | NotifyRespInd notifyRespInd = |
| 169 | new NotifyRespInd(mHeaders); |
| 170 | return notifyRespInd; |
| 171 | case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF: |
| 172 | if (LOCAL_LOGV) { |
| 173 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_RETRIEVE_CONF"); |
| 174 | } |
| 175 | RetrieveConf retrieveConf = |
| 176 | new RetrieveConf(mHeaders, mBody); |
| 177 | |
| 178 | byte[] contentType = retrieveConf.getContentType(); |
| 179 | if (null == contentType) { |
| 180 | return null; |
| 181 | } |
| 182 | String ctTypeStr = new String(contentType); |
| 183 | if (ctTypeStr.equals(ContentType.MULTIPART_MIXED) |
| 184 | || ctTypeStr.equals(ContentType.MULTIPART_RELATED) |
| 185 | || ctTypeStr.equals(ContentType.MULTIPART_ALTERNATIVE)) { |
| 186 | // The MMS content type must be "application/vnd.wap.multipart.mixed" |
| 187 | // or "application/vnd.wap.multipart.related" |
| 188 | // or "application/vnd.wap.multipart.alternative" |
| 189 | return retrieveConf; |
| 190 | } else if (ctTypeStr.equals(ContentType.MULTIPART_ALTERNATIVE)) { |
| 191 | // "application/vnd.wap.multipart.alternative" |
| 192 | // should take only the first part. |
| 193 | PduPart firstPart = mBody.getPart(0); |
| 194 | mBody.removeAll(); |
| 195 | mBody.addPart(0, firstPart); |
| 196 | return retrieveConf; |
| 197 | } |
| 198 | return null; |
| 199 | case PduHeaders.MESSAGE_TYPE_DELIVERY_IND: |
| 200 | if (LOCAL_LOGV) { |
| 201 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_DELIVERY_IND"); |
| 202 | } |
| 203 | DeliveryInd deliveryInd = |
| 204 | new DeliveryInd(mHeaders); |
| 205 | return deliveryInd; |
| 206 | case PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND: |
| 207 | if (LOCAL_LOGV) { |
| 208 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_ACKNOWLEDGE_IND"); |
| 209 | } |
| 210 | AcknowledgeInd acknowledgeInd = |
| 211 | new AcknowledgeInd(mHeaders); |
| 212 | return acknowledgeInd; |
| 213 | case PduHeaders.MESSAGE_TYPE_READ_ORIG_IND: |
| 214 | if (LOCAL_LOGV) { |
| 215 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_READ_ORIG_IND"); |
| 216 | } |
| 217 | ReadOrigInd readOrigInd = |
| 218 | new ReadOrigInd(mHeaders); |
| 219 | return readOrigInd; |
| 220 | case PduHeaders.MESSAGE_TYPE_READ_REC_IND: |
| 221 | if (LOCAL_LOGV) { |
| 222 | Log.v(LOG_TAG, "parse: MESSAGE_TYPE_READ_REC_IND"); |
| 223 | } |
| 224 | ReadRecInd readRecInd = |
| 225 | new ReadRecInd(mHeaders); |
| 226 | return readRecInd; |
| 227 | default: |
| 228 | log("Parser doesn't support this message type in this version!"); |
| 229 | return null; |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * Parse pdu headers. |
| 235 | * |
| 236 | * @param pduDataStream pdu data input stream |
| 237 | * @return headers in PduHeaders structure, null when parse fail |
| 238 | */ |
| 239 | protected PduHeaders parseHeaders(ByteArrayInputStream pduDataStream){ |
| 240 | if (pduDataStream == null) { |
| 241 | return null; |
| 242 | } |
| 243 | boolean keepParsing = true; |
| 244 | PduHeaders headers = new PduHeaders(); |
| 245 | |
| 246 | while (keepParsing && (pduDataStream.available() > 0)) { |
| 247 | pduDataStream.mark(1); |
| 248 | int headerField = extractByteValue(pduDataStream); |
| 249 | /* parse custom text header */ |
| 250 | if ((headerField >= TEXT_MIN) && (headerField <= TEXT_MAX)) { |
| 251 | pduDataStream.reset(); |
| 252 | byte [] bVal = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 253 | if (LOCAL_LOGV) { |
| 254 | Log.v(LOG_TAG, "TextHeader: " + new String(bVal)); |
| 255 | } |
| 256 | /* we should ignore it at the moment */ |
| 257 | continue; |
| 258 | } |
| 259 | switch (headerField) { |
| 260 | case PduHeaders.MESSAGE_TYPE: |
| 261 | { |
| 262 | int messageType = extractByteValue(pduDataStream); |
| 263 | if (LOCAL_LOGV) { |
| 264 | Log.v(LOG_TAG, "parseHeaders: messageType: " + messageType); |
| 265 | } |
| 266 | switch (messageType) { |
| 267 | // We don't support these kind of messages now. |
| 268 | case PduHeaders.MESSAGE_TYPE_FORWARD_REQ: |
| 269 | case PduHeaders.MESSAGE_TYPE_FORWARD_CONF: |
| 270 | case PduHeaders.MESSAGE_TYPE_MBOX_STORE_REQ: |
| 271 | case PduHeaders.MESSAGE_TYPE_MBOX_STORE_CONF: |
| 272 | case PduHeaders.MESSAGE_TYPE_MBOX_VIEW_REQ: |
| 273 | case PduHeaders.MESSAGE_TYPE_MBOX_VIEW_CONF: |
| 274 | case PduHeaders.MESSAGE_TYPE_MBOX_UPLOAD_REQ: |
| 275 | case PduHeaders.MESSAGE_TYPE_MBOX_UPLOAD_CONF: |
| 276 | case PduHeaders.MESSAGE_TYPE_MBOX_DELETE_REQ: |
| 277 | case PduHeaders.MESSAGE_TYPE_MBOX_DELETE_CONF: |
| 278 | case PduHeaders.MESSAGE_TYPE_MBOX_DESCR: |
| 279 | case PduHeaders.MESSAGE_TYPE_DELETE_REQ: |
| 280 | case PduHeaders.MESSAGE_TYPE_DELETE_CONF: |
| 281 | case PduHeaders.MESSAGE_TYPE_CANCEL_REQ: |
| 282 | case PduHeaders.MESSAGE_TYPE_CANCEL_CONF: |
| 283 | return null; |
| 284 | } |
| 285 | try { |
| 286 | headers.setOctet(messageType, headerField); |
| 287 | } catch(InvalidHeaderValueException e) { |
| 288 | log("Set invalid Octet value: " + messageType + |
| 289 | " into the header filed: " + headerField); |
| 290 | return null; |
| 291 | } catch(RuntimeException e) { |
| 292 | log(headerField + "is not Octet header field!"); |
| 293 | return null; |
| 294 | } |
| 295 | break; |
| 296 | } |
| 297 | /* Octect value */ |
| 298 | case PduHeaders.REPORT_ALLOWED: |
| 299 | case PduHeaders.ADAPTATION_ALLOWED: |
| 300 | case PduHeaders.DELIVERY_REPORT: |
| 301 | case PduHeaders.DRM_CONTENT: |
| 302 | case PduHeaders.DISTRIBUTION_INDICATOR: |
| 303 | case PduHeaders.QUOTAS: |
| 304 | case PduHeaders.READ_REPORT: |
| 305 | case PduHeaders.STORE: |
| 306 | case PduHeaders.STORED: |
| 307 | case PduHeaders.TOTALS: |
| 308 | case PduHeaders.SENDER_VISIBILITY: |
| 309 | case PduHeaders.READ_STATUS: |
| 310 | case PduHeaders.CANCEL_STATUS: |
| 311 | case PduHeaders.PRIORITY: |
| 312 | case PduHeaders.STATUS: |
| 313 | case PduHeaders.REPLY_CHARGING: |
| 314 | case PduHeaders.MM_STATE: |
| 315 | case PduHeaders.RECOMMENDED_RETRIEVAL_MODE: |
| 316 | case PduHeaders.CONTENT_CLASS: |
| 317 | case PduHeaders.RETRIEVE_STATUS: |
| 318 | case PduHeaders.STORE_STATUS: |
| 319 | /** |
| 320 | * The following field has a different value when |
| 321 | * used in the M-Mbox-Delete.conf and M-Delete.conf PDU. |
| 322 | * For now we ignore this fact, since we do not support these PDUs |
| 323 | */ |
| 324 | case PduHeaders.RESPONSE_STATUS: |
| 325 | { |
| 326 | int value = extractByteValue(pduDataStream); |
| 327 | if (LOCAL_LOGV) { |
| 328 | Log.v(LOG_TAG, "parseHeaders: byte: " + headerField + " value: " + |
| 329 | value); |
| 330 | } |
| 331 | |
| 332 | try { |
| 333 | headers.setOctet(value, headerField); |
| 334 | } catch(InvalidHeaderValueException e) { |
| 335 | log("Set invalid Octet value: " + value + |
| 336 | " into the header filed: " + headerField); |
| 337 | return null; |
| 338 | } catch(RuntimeException e) { |
| 339 | log(headerField + "is not Octet header field!"); |
| 340 | return null; |
| 341 | } |
| 342 | break; |
| 343 | } |
| 344 | |
| 345 | /* Long-Integer */ |
| 346 | case PduHeaders.DATE: |
| 347 | case PduHeaders.REPLY_CHARGING_SIZE: |
| 348 | case PduHeaders.MESSAGE_SIZE: |
| 349 | { |
| 350 | try { |
| 351 | long value = parseLongInteger(pduDataStream); |
| 352 | if (LOCAL_LOGV) { |
| 353 | Log.v(LOG_TAG, "parseHeaders: longint: " + headerField + " value: " + |
| 354 | value); |
| 355 | } |
| 356 | headers.setLongInteger(value, headerField); |
| 357 | } catch(RuntimeException e) { |
| 358 | log(headerField + "is not Long-Integer header field!"); |
| 359 | return null; |
| 360 | } |
| 361 | break; |
| 362 | } |
| 363 | |
| 364 | /* Integer-Value */ |
| 365 | case PduHeaders.MESSAGE_COUNT: |
| 366 | case PduHeaders.START: |
| 367 | case PduHeaders.LIMIT: |
| 368 | { |
| 369 | try { |
| 370 | long value = parseIntegerValue(pduDataStream); |
| 371 | if (LOCAL_LOGV) { |
| 372 | Log.v(LOG_TAG, "parseHeaders: int: " + headerField + " value: " + |
| 373 | value); |
| 374 | } |
| 375 | headers.setLongInteger(value, headerField); |
| 376 | } catch(RuntimeException e) { |
| 377 | log(headerField + "is not Long-Integer header field!"); |
| 378 | return null; |
| 379 | } |
| 380 | break; |
| 381 | } |
| 382 | |
| 383 | /* Text-String */ |
| 384 | case PduHeaders.TRANSACTION_ID: |
| 385 | case PduHeaders.REPLY_CHARGING_ID: |
| 386 | case PduHeaders.AUX_APPLIC_ID: |
| 387 | case PduHeaders.APPLIC_ID: |
| 388 | case PduHeaders.REPLY_APPLIC_ID: |
| 389 | /** |
| 390 | * The next three header fields are email addresses |
| 391 | * as defined in RFC2822, |
| 392 | * not including the characters "<" and ">" |
| 393 | */ |
| 394 | case PduHeaders.MESSAGE_ID: |
| 395 | case PduHeaders.REPLACE_ID: |
| 396 | case PduHeaders.CANCEL_ID: |
| 397 | /** |
| 398 | * The following field has a different value when |
| 399 | * used in the M-Mbox-Delete.conf and M-Delete.conf PDU. |
| 400 | * For now we ignore this fact, since we do not support these PDUs |
| 401 | */ |
| 402 | case PduHeaders.CONTENT_LOCATION: |
| 403 | { |
| 404 | byte[] value = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 405 | if (null != value) { |
| 406 | try { |
| 407 | if (LOCAL_LOGV) { |
| 408 | Log.v(LOG_TAG, "parseHeaders: string: " + headerField + " value: " + |
| 409 | new String(value)); |
| 410 | } |
| 411 | headers.setTextString(value, headerField); |
| 412 | } catch(NullPointerException e) { |
| 413 | log("null pointer error!"); |
| 414 | } catch(RuntimeException e) { |
| 415 | log(headerField + "is not Text-String header field!"); |
| 416 | return null; |
| 417 | } |
| 418 | } |
| 419 | break; |
| 420 | } |
| 421 | |
| 422 | /* Encoded-string-value */ |
| 423 | case PduHeaders.SUBJECT: |
| 424 | case PduHeaders.RECOMMENDED_RETRIEVAL_MODE_TEXT: |
| 425 | case PduHeaders.RETRIEVE_TEXT: |
| 426 | case PduHeaders.STATUS_TEXT: |
| 427 | case PduHeaders.STORE_STATUS_TEXT: |
| 428 | /* the next one is not support |
| 429 | * M-Mbox-Delete.conf and M-Delete.conf now */ |
| 430 | case PduHeaders.RESPONSE_TEXT: |
| 431 | { |
| 432 | EncodedStringValue value = |
| 433 | parseEncodedStringValue(pduDataStream); |
| 434 | if (null != value) { |
| 435 | try { |
| 436 | if (LOCAL_LOGV) { |
| 437 | Log.v(LOG_TAG, "parseHeaders: encoded string: " + headerField |
| 438 | + " value: " + value.getString()); |
| 439 | } |
| 440 | headers.setEncodedStringValue(value, headerField); |
| 441 | } catch(NullPointerException e) { |
| 442 | log("null pointer error!"); |
| 443 | } catch (RuntimeException e) { |
| 444 | log(headerField + "is not Encoded-String-Value header field!"); |
| 445 | return null; |
| 446 | } |
| 447 | } |
| 448 | break; |
| 449 | } |
| 450 | |
| 451 | /* Addressing model */ |
| 452 | case PduHeaders.BCC: |
| 453 | case PduHeaders.CC: |
| 454 | case PduHeaders.TO: |
| 455 | { |
| 456 | EncodedStringValue value = |
| 457 | parseEncodedStringValue(pduDataStream); |
| 458 | if (null != value) { |
| 459 | byte[] address = value.getTextString(); |
| 460 | if (null != address) { |
| 461 | String str = new String(address); |
| 462 | if (LOCAL_LOGV) { |
| 463 | Log.v(LOG_TAG, "parseHeaders: (to/cc/bcc) address: " + headerField |
| 464 | + " value: " + str); |
| 465 | } |
| 466 | int endIndex = str.indexOf("/"); |
| 467 | if (endIndex > 0) { |
| 468 | str = str.substring(0, endIndex); |
| 469 | } |
| 470 | try { |
| 471 | value.setTextString(str.getBytes()); |
| 472 | } catch(NullPointerException e) { |
| 473 | log("null pointer error!"); |
| 474 | return null; |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | try { |
| 479 | headers.appendEncodedStringValue(value, headerField); |
| 480 | } catch(NullPointerException e) { |
| 481 | log("null pointer error!"); |
| 482 | } catch(RuntimeException e) { |
| 483 | log(headerField + "is not Encoded-String-Value header field!"); |
| 484 | return null; |
| 485 | } |
| 486 | } |
| 487 | break; |
| 488 | } |
| 489 | |
| 490 | /* Value-length |
| 491 | * (Absolute-token Date-value | Relative-token Delta-seconds-value) */ |
| 492 | case PduHeaders.DELIVERY_TIME: |
| 493 | case PduHeaders.EXPIRY: |
| 494 | case PduHeaders.REPLY_CHARGING_DEADLINE: |
| 495 | { |
| 496 | /* parse Value-length */ |
| 497 | parseValueLength(pduDataStream); |
| 498 | |
| 499 | /* Absolute-token or Relative-token */ |
| 500 | int token = extractByteValue(pduDataStream); |
| 501 | |
| 502 | /* Date-value or Delta-seconds-value */ |
| 503 | long timeValue; |
| 504 | try { |
| 505 | timeValue = parseLongInteger(pduDataStream); |
| 506 | } catch(RuntimeException e) { |
| 507 | log(headerField + "is not Long-Integer header field!"); |
| 508 | return null; |
| 509 | } |
| 510 | if (PduHeaders.VALUE_RELATIVE_TOKEN == token) { |
| 511 | /* need to convert the Delta-seconds-value |
| 512 | * into Date-value */ |
| 513 | timeValue = System.currentTimeMillis()/1000 + timeValue; |
| 514 | } |
| 515 | |
| 516 | try { |
| 517 | if (LOCAL_LOGV) { |
| 518 | Log.v(LOG_TAG, "parseHeaders: time value: " + headerField |
| 519 | + " value: " + timeValue); |
| 520 | } |
| 521 | headers.setLongInteger(timeValue, headerField); |
| 522 | } catch(RuntimeException e) { |
| 523 | log(headerField + "is not Long-Integer header field!"); |
| 524 | return null; |
| 525 | } |
| 526 | break; |
| 527 | } |
| 528 | |
| 529 | case PduHeaders.FROM: { |
| 530 | /* From-value = |
| 531 | * Value-length |
| 532 | * (Address-present-token Encoded-string-value | Insert-address-token) |
| 533 | */ |
| 534 | EncodedStringValue from = null; |
| 535 | parseValueLength(pduDataStream); /* parse value-length */ |
| 536 | |
| 537 | /* Address-present-token or Insert-address-token */ |
| 538 | int fromToken = extractByteValue(pduDataStream); |
| 539 | |
| 540 | /* Address-present-token or Insert-address-token */ |
| 541 | if (PduHeaders.FROM_ADDRESS_PRESENT_TOKEN == fromToken) { |
| 542 | /* Encoded-string-value */ |
| 543 | from = parseEncodedStringValue(pduDataStream); |
| 544 | if (null != from) { |
| 545 | byte[] address = from.getTextString(); |
| 546 | if (null != address) { |
| 547 | String str = new String(address); |
| 548 | int endIndex = str.indexOf("/"); |
| 549 | if (endIndex > 0) { |
| 550 | str = str.substring(0, endIndex); |
| 551 | } |
| 552 | try { |
| 553 | from.setTextString(str.getBytes()); |
| 554 | } catch(NullPointerException e) { |
| 555 | log("null pointer error!"); |
| 556 | return null; |
| 557 | } |
| 558 | } |
| 559 | } |
| 560 | } else { |
| 561 | try { |
| 562 | from = new EncodedStringValue( |
| 563 | PduHeaders.FROM_INSERT_ADDRESS_TOKEN_STR.getBytes()); |
| 564 | } catch(NullPointerException e) { |
| 565 | log(headerField + "is not Encoded-String-Value header field!"); |
| 566 | return null; |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | try { |
| 571 | if (LOCAL_LOGV) { |
| 572 | Log.v(LOG_TAG, "parseHeaders: from address: " + headerField |
| 573 | + " value: " + from.getString()); |
| 574 | } |
| 575 | headers.setEncodedStringValue(from, PduHeaders.FROM); |
| 576 | } catch(NullPointerException e) { |
| 577 | log("null pointer error!"); |
| 578 | } catch(RuntimeException e) { |
| 579 | log(headerField + "is not Encoded-String-Value header field!"); |
| 580 | return null; |
| 581 | } |
| 582 | break; |
| 583 | } |
| 584 | |
| 585 | case PduHeaders.MESSAGE_CLASS: { |
| 586 | /* Message-class-value = Class-identifier | Token-text */ |
| 587 | pduDataStream.mark(1); |
| 588 | int messageClass = extractByteValue(pduDataStream); |
| 589 | if (LOCAL_LOGV) { |
| 590 | Log.v(LOG_TAG, "parseHeaders: MESSAGE_CLASS: " + headerField |
| 591 | + " value: " + messageClass); |
| 592 | } |
| 593 | |
| 594 | if (messageClass >= PduHeaders.MESSAGE_CLASS_PERSONAL) { |
| 595 | /* Class-identifier */ |
| 596 | try { |
| 597 | if (PduHeaders.MESSAGE_CLASS_PERSONAL == messageClass) { |
| 598 | headers.setTextString( |
| 599 | PduHeaders.MESSAGE_CLASS_PERSONAL_STR.getBytes(), |
| 600 | PduHeaders.MESSAGE_CLASS); |
| 601 | } else if (PduHeaders.MESSAGE_CLASS_ADVERTISEMENT == messageClass) { |
| 602 | headers.setTextString( |
| 603 | PduHeaders.MESSAGE_CLASS_ADVERTISEMENT_STR.getBytes(), |
| 604 | PduHeaders.MESSAGE_CLASS); |
| 605 | } else if (PduHeaders.MESSAGE_CLASS_INFORMATIONAL == messageClass) { |
| 606 | headers.setTextString( |
| 607 | PduHeaders.MESSAGE_CLASS_INFORMATIONAL_STR.getBytes(), |
| 608 | PduHeaders.MESSAGE_CLASS); |
| 609 | } else if (PduHeaders.MESSAGE_CLASS_AUTO == messageClass) { |
| 610 | headers.setTextString( |
| 611 | PduHeaders.MESSAGE_CLASS_AUTO_STR.getBytes(), |
| 612 | PduHeaders.MESSAGE_CLASS); |
| 613 | } |
| 614 | } catch(NullPointerException e) { |
| 615 | log("null pointer error!"); |
| 616 | } catch(RuntimeException e) { |
| 617 | log(headerField + "is not Text-String header field!"); |
| 618 | return null; |
| 619 | } |
| 620 | } else { |
| 621 | /* Token-text */ |
| 622 | pduDataStream.reset(); |
| 623 | byte[] messageClassString = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 624 | if (null != messageClassString) { |
| 625 | try { |
| 626 | headers.setTextString(messageClassString, PduHeaders.MESSAGE_CLASS); |
| 627 | } catch(NullPointerException e) { |
| 628 | log("null pointer error!"); |
| 629 | } catch(RuntimeException e) { |
| 630 | log(headerField + "is not Text-String header field!"); |
| 631 | return null; |
| 632 | } |
| 633 | } |
| 634 | } |
| 635 | break; |
| 636 | } |
| 637 | |
| 638 | case PduHeaders.MMS_VERSION: { |
| 639 | int version = parseShortInteger(pduDataStream); |
| 640 | |
| 641 | try { |
| 642 | if (LOCAL_LOGV) { |
| 643 | Log.v(LOG_TAG, "parseHeaders: MMS_VERSION: " + headerField |
| 644 | + " value: " + version); |
| 645 | } |
| 646 | headers.setOctet(version, PduHeaders.MMS_VERSION); |
| 647 | } catch(InvalidHeaderValueException e) { |
| 648 | log("Set invalid Octet value: " + version + |
| 649 | " into the header filed: " + headerField); |
| 650 | return null; |
| 651 | } catch(RuntimeException e) { |
| 652 | log(headerField + "is not Octet header field!"); |
| 653 | return null; |
| 654 | } |
| 655 | break; |
| 656 | } |
| 657 | |
| 658 | case PduHeaders.PREVIOUSLY_SENT_BY: { |
| 659 | /* Previously-sent-by-value = |
| 660 | * Value-length Forwarded-count-value Encoded-string-value */ |
| 661 | /* parse value-length */ |
| 662 | parseValueLength(pduDataStream); |
| 663 | |
| 664 | /* parse Forwarded-count-value */ |
| 665 | try { |
| 666 | parseIntegerValue(pduDataStream); |
| 667 | } catch(RuntimeException e) { |
| 668 | log(headerField + " is not Integer-Value"); |
| 669 | return null; |
| 670 | } |
| 671 | |
| 672 | /* parse Encoded-string-value */ |
| 673 | EncodedStringValue previouslySentBy = |
| 674 | parseEncodedStringValue(pduDataStream); |
| 675 | if (null != previouslySentBy) { |
| 676 | try { |
| 677 | if (LOCAL_LOGV) { |
| 678 | Log.v(LOG_TAG, "parseHeaders: PREVIOUSLY_SENT_BY: " + headerField |
| 679 | + " value: " + previouslySentBy.getString()); |
| 680 | } |
| 681 | headers.setEncodedStringValue(previouslySentBy, |
| 682 | PduHeaders.PREVIOUSLY_SENT_BY); |
| 683 | } catch(NullPointerException e) { |
| 684 | log("null pointer error!"); |
| 685 | } catch(RuntimeException e) { |
| 686 | log(headerField + "is not Encoded-String-Value header field!"); |
| 687 | return null; |
| 688 | } |
| 689 | } |
| 690 | break; |
| 691 | } |
| 692 | |
| 693 | case PduHeaders.PREVIOUSLY_SENT_DATE: { |
| 694 | /* Previously-sent-date-value = |
| 695 | * Value-length Forwarded-count-value Date-value */ |
| 696 | /* parse value-length */ |
| 697 | parseValueLength(pduDataStream); |
| 698 | |
| 699 | /* parse Forwarded-count-value */ |
| 700 | try { |
| 701 | parseIntegerValue(pduDataStream); |
| 702 | } catch(RuntimeException e) { |
| 703 | log(headerField + " is not Integer-Value"); |
| 704 | return null; |
| 705 | } |
| 706 | |
| 707 | /* Date-value */ |
| 708 | try { |
| 709 | long perviouslySentDate = parseLongInteger(pduDataStream); |
| 710 | if (LOCAL_LOGV) { |
| 711 | Log.v(LOG_TAG, "parseHeaders: PREVIOUSLY_SENT_DATE: " + headerField |
| 712 | + " value: " + perviouslySentDate); |
| 713 | } |
| 714 | headers.setLongInteger(perviouslySentDate, |
| 715 | PduHeaders.PREVIOUSLY_SENT_DATE); |
| 716 | } catch(RuntimeException e) { |
| 717 | log(headerField + "is not Long-Integer header field!"); |
| 718 | return null; |
| 719 | } |
| 720 | break; |
| 721 | } |
| 722 | |
| 723 | case PduHeaders.MM_FLAGS: { |
| 724 | /* MM-flags-value = |
| 725 | * Value-length |
| 726 | * ( Add-token | Remove-token | Filter-token ) |
| 727 | * Encoded-string-value |
| 728 | */ |
| 729 | if (LOCAL_LOGV) { |
| 730 | Log.v(LOG_TAG, "parseHeaders: MM_FLAGS: " + headerField |
| 731 | + " NOT REALLY SUPPORTED"); |
| 732 | } |
| 733 | |
| 734 | /* parse Value-length */ |
| 735 | parseValueLength(pduDataStream); |
| 736 | |
| 737 | /* Add-token | Remove-token | Filter-token */ |
| 738 | extractByteValue(pduDataStream); |
| 739 | |
| 740 | /* Encoded-string-value */ |
| 741 | parseEncodedStringValue(pduDataStream); |
| 742 | |
| 743 | /* not store this header filed in "headers", |
| 744 | * because now PduHeaders doesn't support it */ |
| 745 | break; |
| 746 | } |
| 747 | |
| 748 | /* Value-length |
| 749 | * (Message-total-token | Size-total-token) Integer-Value */ |
| 750 | case PduHeaders.MBOX_TOTALS: |
| 751 | case PduHeaders.MBOX_QUOTAS: |
| 752 | { |
| 753 | if (LOCAL_LOGV) { |
| 754 | Log.v(LOG_TAG, "parseHeaders: MBOX_TOTALS: " + headerField); |
| 755 | } |
| 756 | /* Value-length */ |
| 757 | parseValueLength(pduDataStream); |
| 758 | |
| 759 | /* Message-total-token | Size-total-token */ |
| 760 | extractByteValue(pduDataStream); |
| 761 | |
| 762 | /*Integer-Value*/ |
| 763 | try { |
| 764 | parseIntegerValue(pduDataStream); |
| 765 | } catch(RuntimeException e) { |
| 766 | log(headerField + " is not Integer-Value"); |
| 767 | return null; |
| 768 | } |
| 769 | |
| 770 | /* not store these headers filed in "headers", |
| 771 | because now PduHeaders doesn't support them */ |
| 772 | break; |
| 773 | } |
| 774 | |
| 775 | case PduHeaders.ELEMENT_DESCRIPTOR: { |
| 776 | if (LOCAL_LOGV) { |
| 777 | Log.v(LOG_TAG, "parseHeaders: ELEMENT_DESCRIPTOR: " + headerField); |
| 778 | } |
| 779 | parseContentType(pduDataStream, null); |
| 780 | |
| 781 | /* not store this header filed in "headers", |
| 782 | because now PduHeaders doesn't support it */ |
| 783 | break; |
| 784 | } |
| 785 | |
| 786 | case PduHeaders.CONTENT_TYPE: { |
| 787 | HashMap<Integer, Object> map = |
| 788 | new HashMap<Integer, Object>(); |
| 789 | byte[] contentType = |
| 790 | parseContentType(pduDataStream, map); |
| 791 | |
| 792 | if (null != contentType) { |
| 793 | try { |
| 794 | if (LOCAL_LOGV) { |
| 795 | Log.v(LOG_TAG, "parseHeaders: CONTENT_TYPE: " + headerField + |
| 796 | contentType.toString()); |
| 797 | } |
| 798 | headers.setTextString(contentType, PduHeaders.CONTENT_TYPE); |
| 799 | } catch(NullPointerException e) { |
| 800 | log("null pointer error!"); |
| 801 | } catch(RuntimeException e) { |
| 802 | log(headerField + "is not Text-String header field!"); |
| 803 | return null; |
| 804 | } |
| 805 | } |
| 806 | |
| 807 | /* get start parameter */ |
| 808 | mStartParam = (byte[]) map.get(PduPart.P_START); |
| 809 | |
| 810 | /* get charset parameter */ |
| 811 | mTypeParam= (byte[]) map.get(PduPart.P_TYPE); |
| 812 | |
| 813 | keepParsing = false; |
| 814 | break; |
| 815 | } |
| 816 | |
| 817 | case PduHeaders.CONTENT: |
| 818 | case PduHeaders.ADDITIONAL_HEADERS: |
| 819 | case PduHeaders.ATTRIBUTES: |
| 820 | default: { |
| 821 | if (LOCAL_LOGV) { |
| 822 | Log.v(LOG_TAG, "parseHeaders: Unknown header: " + headerField); |
| 823 | } |
| 824 | log("Unknown header"); |
| 825 | } |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | return headers; |
| 830 | } |
| 831 | |
| 832 | /** |
| 833 | * Parse pdu parts. |
| 834 | * |
| 835 | * @param pduDataStream pdu data input stream |
| 836 | * @return parts in PduBody structure |
| 837 | */ |
| 838 | protected PduBody parseParts(ByteArrayInputStream pduDataStream) { |
| 839 | if (pduDataStream == null) { |
| 840 | return null; |
| 841 | } |
| 842 | |
| 843 | int count = parseUnsignedInt(pduDataStream); // get the number of parts |
| 844 | PduBody body = new PduBody(); |
| 845 | |
| 846 | for (int i = 0 ; i < count ; i++) { |
| 847 | int headerLength = parseUnsignedInt(pduDataStream); |
| 848 | int dataLength = parseUnsignedInt(pduDataStream); |
| 849 | PduPart part = new PduPart(); |
| 850 | int startPos = pduDataStream.available(); |
| 851 | if (startPos <= 0) { |
| 852 | // Invalid part. |
| 853 | return null; |
| 854 | } |
| 855 | |
| 856 | /* parse part's content-type */ |
| 857 | HashMap<Integer, Object> map = new HashMap<Integer, Object>(); |
| 858 | byte[] contentType = parseContentType(pduDataStream, map); |
| 859 | if (null != contentType) { |
| 860 | part.setContentType(contentType); |
| 861 | } else { |
| 862 | part.setContentType((PduContentTypes.contentTypes[0]).getBytes()); //"*/*" |
| 863 | } |
| 864 | |
| 865 | /* get name parameter */ |
| 866 | byte[] name = (byte[]) map.get(PduPart.P_NAME); |
| 867 | if (null != name) { |
| 868 | part.setName(name); |
| 869 | } |
| 870 | |
| 871 | /* get charset parameter */ |
| 872 | Integer charset = (Integer) map.get(PduPart.P_CHARSET); |
| 873 | if (null != charset) { |
| 874 | part.setCharset(charset); |
| 875 | } |
| 876 | |
| 877 | /* parse part's headers */ |
| 878 | int endPos = pduDataStream.available(); |
| 879 | int partHeaderLen = headerLength - (startPos - endPos); |
| 880 | if (partHeaderLen > 0) { |
| 881 | if (false == parsePartHeaders(pduDataStream, part, partHeaderLen)) { |
| 882 | // Parse part header faild. |
| 883 | return null; |
| 884 | } |
| 885 | } else if (partHeaderLen < 0) { |
| 886 | // Invalid length of content-type. |
| 887 | return null; |
| 888 | } |
| 889 | |
| 890 | /* FIXME: check content-id, name, filename and content location, |
| 891 | * if not set anyone of them, generate a default content-location |
| 892 | */ |
| 893 | if ((null == part.getContentLocation()) |
| 894 | && (null == part.getName()) |
| 895 | && (null == part.getFilename()) |
| 896 | && (null == part.getContentId())) { |
| 897 | part.setContentLocation(Long.toOctalString( |
| 898 | System.currentTimeMillis()).getBytes()); |
| 899 | } |
| 900 | |
| 901 | /* get part's data */ |
| 902 | if (dataLength > 0) { |
| 903 | byte[] partData = new byte[dataLength]; |
| 904 | String partContentType = new String(part.getContentType()); |
| 905 | pduDataStream.read(partData, 0, dataLength); |
| 906 | if (partContentType.equalsIgnoreCase(ContentType.MULTIPART_ALTERNATIVE)) { |
| 907 | // parse "multipart/vnd.wap.multipart.alternative". |
| 908 | PduBody childBody = parseParts(new ByteArrayInputStream(partData)); |
| 909 | // take the first part of children. |
| 910 | part = childBody.getPart(0); |
| 911 | } else { |
| 912 | // Check Content-Transfer-Encoding. |
| 913 | byte[] partDataEncoding = part.getContentTransferEncoding(); |
| 914 | if (null != partDataEncoding) { |
| 915 | String encoding = new String(partDataEncoding); |
| 916 | if (encoding.equalsIgnoreCase(PduPart.P_BASE64)) { |
| 917 | // Decode "base64" into "binary". |
| 918 | partData = Base64.decodeBase64(partData); |
| 919 | } else if (encoding.equalsIgnoreCase(PduPart.P_QUOTED_PRINTABLE)) { |
| 920 | // Decode "quoted-printable" into "binary". |
| 921 | partData = QuotedPrintable.decodeQuotedPrintable(partData); |
| 922 | } else { |
| 923 | // "binary" is the default encoding. |
| 924 | } |
| 925 | } |
| 926 | if (null == partData) { |
| 927 | log("Decode part data error!"); |
| 928 | return null; |
| 929 | } |
| 930 | part.setData(partData); |
| 931 | } |
| 932 | } |
| 933 | |
| 934 | /* add this part to body */ |
| 935 | if (THE_FIRST_PART == checkPartPosition(part)) { |
| 936 | /* this is the first part */ |
| 937 | body.addPart(0, part); |
| 938 | } else { |
| 939 | /* add the part to the end */ |
| 940 | body.addPart(part); |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | return body; |
| 945 | } |
| 946 | |
| 947 | /** |
| 948 | * Log status. |
| 949 | * |
| 950 | * @param text log information |
| 951 | */ |
| 952 | @UnsupportedAppUsage |
| 953 | private static void log(String text) { |
| 954 | if (LOCAL_LOGV) { |
| 955 | Log.v(LOG_TAG, text); |
| 956 | } |
| 957 | } |
| 958 | |
| 959 | /** |
| 960 | * Parse unsigned integer. |
| 961 | * |
| 962 | * @param pduDataStream pdu data input stream |
| 963 | * @return the integer, -1 when failed |
| 964 | */ |
| 965 | @UnsupportedAppUsage |
| 966 | protected static int parseUnsignedInt(ByteArrayInputStream pduDataStream) { |
| 967 | /** |
| 968 | * From wap-230-wsp-20010705-a.pdf |
| 969 | * The maximum size of a uintvar is 32 bits. |
| 970 | * So it will be encoded in no more than 5 octets. |
| 971 | */ |
| 972 | assert(null != pduDataStream); |
| 973 | int result = 0; |
| 974 | int temp = pduDataStream.read(); |
| 975 | if (temp == -1) { |
| 976 | return temp; |
| 977 | } |
| 978 | |
| 979 | while((temp & 0x80) != 0) { |
| 980 | result = result << 7; |
| 981 | result |= temp & 0x7F; |
| 982 | temp = pduDataStream.read(); |
| 983 | if (temp == -1) { |
| 984 | return temp; |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | result = result << 7; |
| 989 | result |= temp & 0x7F; |
| 990 | |
| 991 | return result; |
| 992 | } |
| 993 | |
| 994 | /** |
| 995 | * Parse value length. |
| 996 | * |
| 997 | * @param pduDataStream pdu data input stream |
| 998 | * @return the integer |
| 999 | */ |
| 1000 | @UnsupportedAppUsage |
| 1001 | protected static int parseValueLength(ByteArrayInputStream pduDataStream) { |
| 1002 | /** |
| 1003 | * From wap-230-wsp-20010705-a.pdf |
| 1004 | * Value-length = Short-length | (Length-quote Length) |
| 1005 | * Short-length = <Any octet 0-30> |
| 1006 | * Length-quote = <Octet 31> |
| 1007 | * Length = Uintvar-integer |
| 1008 | * Uintvar-integer = 1*5 OCTET |
| 1009 | */ |
| 1010 | assert(null != pduDataStream); |
| 1011 | int temp = pduDataStream.read(); |
| 1012 | assert(-1 != temp); |
| 1013 | int first = temp & 0xFF; |
| 1014 | |
| 1015 | if (first <= SHORT_LENGTH_MAX) { |
| 1016 | return first; |
| 1017 | } else if (first == LENGTH_QUOTE) { |
| 1018 | return parseUnsignedInt(pduDataStream); |
| 1019 | } |
| 1020 | |
| 1021 | throw new RuntimeException ("Value length > LENGTH_QUOTE!"); |
| 1022 | } |
| 1023 | |
| 1024 | /** |
| 1025 | * Parse encoded string value. |
| 1026 | * |
| 1027 | * @param pduDataStream pdu data input stream |
| 1028 | * @return the EncodedStringValue |
| 1029 | */ |
| 1030 | protected static EncodedStringValue parseEncodedStringValue(ByteArrayInputStream pduDataStream){ |
| 1031 | /** |
| 1032 | * From OMA-TS-MMS-ENC-V1_3-20050927-C.pdf |
| 1033 | * Encoded-string-value = Text-string | Value-length Char-set Text-string |
| 1034 | */ |
| 1035 | assert(null != pduDataStream); |
| 1036 | pduDataStream.mark(1); |
| 1037 | EncodedStringValue returnValue = null; |
| 1038 | int charset = 0; |
| 1039 | int temp = pduDataStream.read(); |
| 1040 | assert(-1 != temp); |
| 1041 | int first = temp & 0xFF; |
| 1042 | if (first == 0) { |
| 1043 | return new EncodedStringValue(""); |
| 1044 | } |
| 1045 | |
| 1046 | pduDataStream.reset(); |
| 1047 | if (first < TEXT_MIN) { |
| 1048 | parseValueLength(pduDataStream); |
| 1049 | |
| 1050 | charset = parseShortInteger(pduDataStream); //get the "Charset" |
| 1051 | } |
| 1052 | |
| 1053 | byte[] textString = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1054 | |
| 1055 | try { |
| 1056 | if (0 != charset) { |
| 1057 | returnValue = new EncodedStringValue(charset, textString); |
| 1058 | } else { |
| 1059 | returnValue = new EncodedStringValue(textString); |
| 1060 | } |
| 1061 | } catch(Exception e) { |
| 1062 | return null; |
| 1063 | } |
| 1064 | |
| 1065 | return returnValue; |
| 1066 | } |
| 1067 | |
| 1068 | /** |
| 1069 | * Parse Text-String or Quoted-String. |
| 1070 | * |
| 1071 | * @param pduDataStream pdu data input stream |
| 1072 | * @param stringType TYPE_TEXT_STRING or TYPE_QUOTED_STRING |
| 1073 | * @return the string without End-of-string in byte array |
| 1074 | */ |
| 1075 | @UnsupportedAppUsage |
| 1076 | protected static byte[] parseWapString(ByteArrayInputStream pduDataStream, |
| 1077 | int stringType) { |
| 1078 | assert(null != pduDataStream); |
| 1079 | /** |
| 1080 | * From wap-230-wsp-20010705-a.pdf |
| 1081 | * Text-string = [Quote] *TEXT End-of-string |
| 1082 | * If the first character in the TEXT is in the range of 128-255, |
| 1083 | * a Quote character must precede it. |
| 1084 | * Otherwise the Quote character must be omitted. |
| 1085 | * The Quote is not part of the contents. |
| 1086 | * Quote = <Octet 127> |
| 1087 | * End-of-string = <Octet 0> |
| 1088 | * |
| 1089 | * Quoted-string = <Octet 34> *TEXT End-of-string |
| 1090 | * |
| 1091 | * Token-text = Token End-of-string |
| 1092 | */ |
| 1093 | |
| 1094 | // Mark supposed beginning of Text-string |
| 1095 | // We will have to mark again if first char is QUOTE or QUOTED_STRING_FLAG |
| 1096 | pduDataStream.mark(1); |
| 1097 | |
| 1098 | // Check first char |
| 1099 | int temp = pduDataStream.read(); |
| 1100 | assert(-1 != temp); |
| 1101 | if ((TYPE_QUOTED_STRING == stringType) && |
| 1102 | (QUOTED_STRING_FLAG == temp)) { |
| 1103 | // Mark again if QUOTED_STRING_FLAG and ignore it |
| 1104 | pduDataStream.mark(1); |
| 1105 | } else if ((TYPE_TEXT_STRING == stringType) && |
| 1106 | (QUOTE == temp)) { |
| 1107 | // Mark again if QUOTE and ignore it |
| 1108 | pduDataStream.mark(1); |
| 1109 | } else { |
| 1110 | // Otherwise go back to origin |
| 1111 | pduDataStream.reset(); |
| 1112 | } |
| 1113 | |
| 1114 | // We are now definitely at the beginning of string |
| 1115 | /** |
| 1116 | * Return *TOKEN or *TEXT (Text-String without QUOTE, |
| 1117 | * Quoted-String without QUOTED_STRING_FLAG and without End-of-string) |
| 1118 | */ |
| 1119 | return getWapString(pduDataStream, stringType); |
| 1120 | } |
| 1121 | |
| 1122 | /** |
| 1123 | * Check TOKEN data defined in RFC2616. |
| 1124 | * @param ch checking data |
| 1125 | * @return true when ch is TOKEN, false when ch is not TOKEN |
| 1126 | */ |
| 1127 | protected static boolean isTokenCharacter(int ch) { |
| 1128 | /** |
| 1129 | * Token = 1*<any CHAR except CTLs or separators> |
| 1130 | * separators = "("(40) | ")"(41) | "<"(60) | ">"(62) | "@"(64) |
| 1131 | * | ","(44) | ";"(59) | ":"(58) | "\"(92) | <">(34) |
| 1132 | * | "/"(47) | "["(91) | "]"(93) | "?"(63) | "="(61) |
| 1133 | * | "{"(123) | "}"(125) | SP(32) | HT(9) |
| 1134 | * CHAR = <any US-ASCII character (octets 0 - 127)> |
| 1135 | * CTL = <any US-ASCII control character |
| 1136 | * (octets 0 - 31) and DEL (127)> |
| 1137 | * SP = <US-ASCII SP, space (32)> |
| 1138 | * HT = <US-ASCII HT, horizontal-tab (9)> |
| 1139 | */ |
| 1140 | if((ch < 33) || (ch > 126)) { |
| 1141 | return false; |
| 1142 | } |
| 1143 | |
| 1144 | switch(ch) { |
| 1145 | case '"': /* '"' */ |
| 1146 | case '(': /* '(' */ |
| 1147 | case ')': /* ')' */ |
| 1148 | case ',': /* ',' */ |
| 1149 | case '/': /* '/' */ |
| 1150 | case ':': /* ':' */ |
| 1151 | case ';': /* ';' */ |
| 1152 | case '<': /* '<' */ |
| 1153 | case '=': /* '=' */ |
| 1154 | case '>': /* '>' */ |
| 1155 | case '?': /* '?' */ |
| 1156 | case '@': /* '@' */ |
| 1157 | case '[': /* '[' */ |
| 1158 | case '\\': /* '\' */ |
| 1159 | case ']': /* ']' */ |
| 1160 | case '{': /* '{' */ |
| 1161 | case '}': /* '}' */ |
| 1162 | return false; |
| 1163 | } |
| 1164 | |
| 1165 | return true; |
| 1166 | } |
| 1167 | |
| 1168 | /** |
| 1169 | * Check TEXT data defined in RFC2616. |
| 1170 | * @param ch checking data |
| 1171 | * @return true when ch is TEXT, false when ch is not TEXT |
| 1172 | */ |
| 1173 | protected static boolean isText(int ch) { |
| 1174 | /** |
| 1175 | * TEXT = <any OCTET except CTLs, |
| 1176 | * but including LWS> |
| 1177 | * CTL = <any US-ASCII control character |
| 1178 | * (octets 0 - 31) and DEL (127)> |
| 1179 | * LWS = [CRLF] 1*( SP | HT ) |
| 1180 | * CRLF = CR LF |
| 1181 | * CR = <US-ASCII CR, carriage return (13)> |
| 1182 | * LF = <US-ASCII LF, linefeed (10)> |
| 1183 | */ |
| 1184 | if(((ch >= 32) && (ch <= 126)) || ((ch >= 128) && (ch <= 255))) { |
| 1185 | return true; |
| 1186 | } |
| 1187 | |
| 1188 | switch(ch) { |
| 1189 | case '\t': /* '\t' */ |
| 1190 | case '\n': /* '\n' */ |
| 1191 | case '\r': /* '\r' */ |
| 1192 | return true; |
| 1193 | } |
| 1194 | |
| 1195 | return false; |
| 1196 | } |
| 1197 | |
| 1198 | protected static byte[] getWapString(ByteArrayInputStream pduDataStream, |
| 1199 | int stringType) { |
| 1200 | assert(null != pduDataStream); |
| 1201 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| 1202 | int temp = pduDataStream.read(); |
| 1203 | assert(-1 != temp); |
| 1204 | while((-1 != temp) && ('\0' != temp)) { |
| 1205 | // check each of the character |
| 1206 | if (stringType == TYPE_TOKEN_STRING) { |
| 1207 | if (isTokenCharacter(temp)) { |
| 1208 | out.write(temp); |
| 1209 | } |
| 1210 | } else { |
| 1211 | if (isText(temp)) { |
| 1212 | out.write(temp); |
| 1213 | } |
| 1214 | } |
| 1215 | |
| 1216 | temp = pduDataStream.read(); |
| 1217 | assert(-1 != temp); |
| 1218 | } |
| 1219 | |
| 1220 | if (out.size() > 0) { |
| 1221 | return out.toByteArray(); |
| 1222 | } |
| 1223 | |
| 1224 | return null; |
| 1225 | } |
| 1226 | |
| 1227 | /** |
| 1228 | * Extract a byte value from the input stream. |
| 1229 | * |
| 1230 | * @param pduDataStream pdu data input stream |
| 1231 | * @return the byte |
| 1232 | */ |
| 1233 | protected static int extractByteValue(ByteArrayInputStream pduDataStream) { |
| 1234 | assert(null != pduDataStream); |
| 1235 | int temp = pduDataStream.read(); |
| 1236 | assert(-1 != temp); |
| 1237 | return temp & 0xFF; |
| 1238 | } |
| 1239 | |
| 1240 | /** |
| 1241 | * Parse Short-Integer. |
| 1242 | * |
| 1243 | * @param pduDataStream pdu data input stream |
| 1244 | * @return the byte |
| 1245 | */ |
| 1246 | @UnsupportedAppUsage |
| 1247 | protected static int parseShortInteger(ByteArrayInputStream pduDataStream) { |
| 1248 | /** |
| 1249 | * From wap-230-wsp-20010705-a.pdf |
| 1250 | * Short-integer = OCTET |
| 1251 | * Integers in range 0-127 shall be encoded as a one |
| 1252 | * octet value with the most significant bit set to one (1xxx xxxx) |
| 1253 | * and with the value in the remaining least significant bits. |
| 1254 | */ |
| 1255 | assert(null != pduDataStream); |
| 1256 | int temp = pduDataStream.read(); |
| 1257 | assert(-1 != temp); |
| 1258 | return temp & 0x7F; |
| 1259 | } |
| 1260 | |
| 1261 | /** |
| 1262 | * Parse Long-Integer. |
| 1263 | * |
| 1264 | * @param pduDataStream pdu data input stream |
| 1265 | * @return long integer |
| 1266 | */ |
| 1267 | protected static long parseLongInteger(ByteArrayInputStream pduDataStream) { |
| 1268 | /** |
| 1269 | * From wap-230-wsp-20010705-a.pdf |
| 1270 | * Long-integer = Short-length Multi-octet-integer |
| 1271 | * The Short-length indicates the length of the Multi-octet-integer |
| 1272 | * Multi-octet-integer = 1*30 OCTET |
| 1273 | * The content octets shall be an unsigned integer value |
| 1274 | * with the most significant octet encoded first (big-endian representation). |
| 1275 | * The minimum number of octets must be used to encode the value. |
| 1276 | * Short-length = <Any octet 0-30> |
| 1277 | */ |
| 1278 | assert(null != pduDataStream); |
| 1279 | int temp = pduDataStream.read(); |
| 1280 | assert(-1 != temp); |
| 1281 | int count = temp & 0xFF; |
| 1282 | |
| 1283 | if (count > LONG_INTEGER_LENGTH_MAX) { |
| 1284 | throw new RuntimeException("Octet count greater than 8 and I can't represent that!"); |
| 1285 | } |
| 1286 | |
| 1287 | long result = 0; |
| 1288 | |
| 1289 | for (int i = 0 ; i < count ; i++) { |
| 1290 | temp = pduDataStream.read(); |
| 1291 | assert(-1 != temp); |
| 1292 | result <<= 8; |
| 1293 | result += (temp & 0xFF); |
| 1294 | } |
| 1295 | |
| 1296 | return result; |
| 1297 | } |
| 1298 | |
| 1299 | /** |
| 1300 | * Parse Integer-Value. |
| 1301 | * |
| 1302 | * @param pduDataStream pdu data input stream |
| 1303 | * @return long integer |
| 1304 | */ |
| 1305 | protected static long parseIntegerValue(ByteArrayInputStream pduDataStream) { |
| 1306 | /** |
| 1307 | * From wap-230-wsp-20010705-a.pdf |
| 1308 | * Integer-Value = Short-integer | Long-integer |
| 1309 | */ |
| 1310 | assert(null != pduDataStream); |
| 1311 | pduDataStream.mark(1); |
| 1312 | int temp = pduDataStream.read(); |
| 1313 | assert(-1 != temp); |
| 1314 | pduDataStream.reset(); |
| 1315 | if (temp > SHORT_INTEGER_MAX) { |
| 1316 | return parseShortInteger(pduDataStream); |
| 1317 | } else { |
| 1318 | return parseLongInteger(pduDataStream); |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | /** |
| 1323 | * To skip length of the wap value. |
| 1324 | * |
| 1325 | * @param pduDataStream pdu data input stream |
| 1326 | * @param length area size |
| 1327 | * @return the values in this area |
| 1328 | */ |
| 1329 | protected static int skipWapValue(ByteArrayInputStream pduDataStream, int length) { |
| 1330 | assert(null != pduDataStream); |
| 1331 | byte[] area = new byte[length]; |
| 1332 | int readLen = pduDataStream.read(area, 0, length); |
| 1333 | if (readLen < length) { //The actually read length is lower than the length |
| 1334 | return -1; |
| 1335 | } else { |
| 1336 | return readLen; |
| 1337 | } |
| 1338 | } |
| 1339 | |
| 1340 | /** |
| 1341 | * Parse content type parameters. For now we just support |
| 1342 | * four parameters used in mms: "type", "start", "name", "charset". |
| 1343 | * |
| 1344 | * @param pduDataStream pdu data input stream |
| 1345 | * @param map to store parameters of Content-Type field |
| 1346 | * @param length length of all the parameters |
| 1347 | */ |
| 1348 | protected static void parseContentTypeParams(ByteArrayInputStream pduDataStream, |
| 1349 | HashMap<Integer, Object> map, Integer length) { |
| 1350 | /** |
| 1351 | * From wap-230-wsp-20010705-a.pdf |
| 1352 | * Parameter = Typed-parameter | Untyped-parameter |
| 1353 | * Typed-parameter = Well-known-parameter-token Typed-value |
| 1354 | * the actual expected type of the value is implied by the well-known parameter |
| 1355 | * Well-known-parameter-token = Integer-value |
| 1356 | * the code values used for parameters are specified in the Assigned Numbers appendix |
| 1357 | * Typed-value = Compact-value | Text-value |
| 1358 | * In addition to the expected type, there may be no value. |
| 1359 | * If the value cannot be encoded using the expected type, it shall be encoded as text. |
| 1360 | * Compact-value = Integer-value | |
| 1361 | * Date-value | Delta-seconds-value | Q-value | Version-value | |
| 1362 | * Uri-value |
| 1363 | * Untyped-parameter = Token-text Untyped-value |
| 1364 | * the type of the value is unknown, but it shall be encoded as an integer, |
| 1365 | * if that is possible. |
| 1366 | * Untyped-value = Integer-value | Text-value |
| 1367 | */ |
| 1368 | assert(null != pduDataStream); |
| 1369 | assert(length > 0); |
| 1370 | |
| 1371 | int startPos = pduDataStream.available(); |
| 1372 | int tempPos = 0; |
| 1373 | int lastLen = length; |
| 1374 | while(0 < lastLen) { |
| 1375 | int param = pduDataStream.read(); |
| 1376 | assert(-1 != param); |
| 1377 | lastLen--; |
| 1378 | |
| 1379 | switch (param) { |
| 1380 | /** |
| 1381 | * From rfc2387, chapter 3.1 |
| 1382 | * The type parameter must be specified and its value is the MIME media |
| 1383 | * type of the "root" body part. It permits a MIME user agent to |
| 1384 | * determine the content-type without reference to the enclosed body |
| 1385 | * part. If the value of the type parameter and the root body part's |
| 1386 | * content-type differ then the User Agent's behavior is undefined. |
| 1387 | * |
| 1388 | * From wap-230-wsp-20010705-a.pdf |
| 1389 | * type = Constrained-encoding |
| 1390 | * Constrained-encoding = Extension-Media | Short-integer |
| 1391 | * Extension-media = *TEXT End-of-string |
| 1392 | */ |
| 1393 | case PduPart.P_TYPE: |
| 1394 | case PduPart.P_CT_MR_TYPE: |
| 1395 | pduDataStream.mark(1); |
| 1396 | int first = extractByteValue(pduDataStream); |
| 1397 | pduDataStream.reset(); |
| 1398 | if (first > TEXT_MAX) { |
| 1399 | // Short-integer (well-known type) |
| 1400 | int index = parseShortInteger(pduDataStream); |
| 1401 | |
| 1402 | if (index < PduContentTypes.contentTypes.length) { |
| 1403 | byte[] type = (PduContentTypes.contentTypes[index]).getBytes(); |
| 1404 | map.put(PduPart.P_TYPE, type); |
| 1405 | } else { |
| 1406 | //not support this type, ignore it. |
| 1407 | } |
| 1408 | } else { |
| 1409 | // Text-String (extension-media) |
| 1410 | byte[] type = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1411 | if ((null != type) && (null != map)) { |
| 1412 | map.put(PduPart.P_TYPE, type); |
| 1413 | } |
| 1414 | } |
| 1415 | |
| 1416 | tempPos = pduDataStream.available(); |
| 1417 | lastLen = length - (startPos - tempPos); |
| 1418 | break; |
| 1419 | |
| 1420 | /** |
| 1421 | * From oma-ts-mms-conf-v1_3.pdf, chapter 10.2.3. |
| 1422 | * Start Parameter Referring to Presentation |
| 1423 | * |
| 1424 | * From rfc2387, chapter 3.2 |
| 1425 | * The start parameter, if given, is the content-ID of the compound |
| 1426 | * object's "root". If not present the "root" is the first body part in |
| 1427 | * the Multipart/Related entity. The "root" is the element the |
| 1428 | * applications processes first. |
| 1429 | * |
| 1430 | * From wap-230-wsp-20010705-a.pdf |
| 1431 | * start = Text-String |
| 1432 | */ |
| 1433 | case PduPart.P_START: |
| 1434 | case PduPart.P_DEP_START: |
| 1435 | byte[] start = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1436 | if ((null != start) && (null != map)) { |
| 1437 | map.put(PduPart.P_START, start); |
| 1438 | } |
| 1439 | |
| 1440 | tempPos = pduDataStream.available(); |
| 1441 | lastLen = length - (startPos - tempPos); |
| 1442 | break; |
| 1443 | |
| 1444 | /** |
| 1445 | * From oma-ts-mms-conf-v1_3.pdf |
| 1446 | * In creation, the character set SHALL be either us-ascii |
| 1447 | * (IANA MIBenum 3) or utf-8 (IANA MIBenum 106)[Unicode]. |
| 1448 | * In retrieval, both us-ascii and utf-8 SHALL be supported. |
| 1449 | * |
| 1450 | * From wap-230-wsp-20010705-a.pdf |
| 1451 | * charset = Well-known-charset|Text-String |
| 1452 | * Well-known-charset = Any-charset | Integer-value |
| 1453 | * Both are encoded using values from Character Set |
| 1454 | * Assignments table in Assigned Numbers |
| 1455 | * Any-charset = <Octet 128> |
| 1456 | * Equivalent to the special RFC2616 charset value "*" |
| 1457 | */ |
| 1458 | case PduPart.P_CHARSET: |
| 1459 | pduDataStream.mark(1); |
| 1460 | int firstValue = extractByteValue(pduDataStream); |
| 1461 | pduDataStream.reset(); |
| 1462 | //Check first char |
| 1463 | if (((firstValue > TEXT_MIN) && (firstValue < TEXT_MAX)) || |
| 1464 | (END_STRING_FLAG == firstValue)) { |
| 1465 | //Text-String (extension-charset) |
| 1466 | byte[] charsetStr = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1467 | try { |
| 1468 | int charsetInt = CharacterSets.getMibEnumValue( |
| 1469 | new String(charsetStr)); |
| 1470 | map.put(PduPart.P_CHARSET, charsetInt); |
| 1471 | } catch (UnsupportedEncodingException e) { |
| 1472 | // Not a well-known charset, use "*". |
| 1473 | Log.e(LOG_TAG, Arrays.toString(charsetStr), e); |
| 1474 | map.put(PduPart.P_CHARSET, CharacterSets.ANY_CHARSET); |
| 1475 | } |
| 1476 | } else { |
| 1477 | //Well-known-charset |
| 1478 | int charset = (int) parseIntegerValue(pduDataStream); |
| 1479 | if (map != null) { |
| 1480 | map.put(PduPart.P_CHARSET, charset); |
| 1481 | } |
| 1482 | } |
| 1483 | |
| 1484 | tempPos = pduDataStream.available(); |
| 1485 | lastLen = length - (startPos - tempPos); |
| 1486 | break; |
| 1487 | |
| 1488 | /** |
| 1489 | * From oma-ts-mms-conf-v1_3.pdf |
| 1490 | * A name for multipart object SHALL be encoded using name-parameter |
| 1491 | * for Content-Type header in WSP multipart headers. |
| 1492 | * |
| 1493 | * From wap-230-wsp-20010705-a.pdf |
| 1494 | * name = Text-String |
| 1495 | */ |
| 1496 | case PduPart.P_DEP_NAME: |
| 1497 | case PduPart.P_NAME: |
| 1498 | byte[] name = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1499 | if ((null != name) && (null != map)) { |
| 1500 | map.put(PduPart.P_NAME, name); |
| 1501 | } |
| 1502 | |
| 1503 | tempPos = pduDataStream.available(); |
| 1504 | lastLen = length - (startPos - tempPos); |
| 1505 | break; |
| 1506 | default: |
| 1507 | if (LOCAL_LOGV) { |
| 1508 | Log.v(LOG_TAG, "Not supported Content-Type parameter"); |
| 1509 | } |
| 1510 | if (-1 == skipWapValue(pduDataStream, lastLen)) { |
| 1511 | Log.e(LOG_TAG, "Corrupt Content-Type"); |
| 1512 | } else { |
| 1513 | lastLen = 0; |
| 1514 | } |
| 1515 | break; |
| 1516 | } |
| 1517 | } |
| 1518 | |
| 1519 | if (0 != lastLen) { |
| 1520 | Log.e(LOG_TAG, "Corrupt Content-Type"); |
| 1521 | } |
| 1522 | } |
| 1523 | |
| 1524 | /** |
| 1525 | * Parse content type. |
| 1526 | * |
| 1527 | * @param pduDataStream pdu data input stream |
| 1528 | * @param map to store parameters in Content-Type header field |
| 1529 | * @return Content-Type value |
| 1530 | */ |
| 1531 | @UnsupportedAppUsage |
| 1532 | protected static byte[] parseContentType(ByteArrayInputStream pduDataStream, |
| 1533 | HashMap<Integer, Object> map) { |
| 1534 | /** |
| 1535 | * From wap-230-wsp-20010705-a.pdf |
| 1536 | * Content-type-value = Constrained-media | Content-general-form |
| 1537 | * Content-general-form = Value-length Media-type |
| 1538 | * Media-type = (Well-known-media | Extension-Media) *(Parameter) |
| 1539 | */ |
| 1540 | assert(null != pduDataStream); |
| 1541 | |
| 1542 | byte[] contentType = null; |
| 1543 | pduDataStream.mark(1); |
| 1544 | int temp = pduDataStream.read(); |
| 1545 | assert(-1 != temp); |
| 1546 | pduDataStream.reset(); |
| 1547 | |
| 1548 | int cur = (temp & 0xFF); |
| 1549 | |
| 1550 | if (cur < TEXT_MIN) { |
| 1551 | int length = parseValueLength(pduDataStream); |
| 1552 | int startPos = pduDataStream.available(); |
| 1553 | pduDataStream.mark(1); |
| 1554 | temp = pduDataStream.read(); |
| 1555 | assert(-1 != temp); |
| 1556 | pduDataStream.reset(); |
| 1557 | int first = (temp & 0xFF); |
| 1558 | |
| 1559 | if ((first >= TEXT_MIN) && (first <= TEXT_MAX)) { |
| 1560 | contentType = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1561 | } else if (first > TEXT_MAX) { |
| 1562 | int index = parseShortInteger(pduDataStream); |
| 1563 | |
| 1564 | if (index < PduContentTypes.contentTypes.length) { //well-known type |
| 1565 | contentType = (PduContentTypes.contentTypes[index]).getBytes(); |
| 1566 | } else { |
| 1567 | pduDataStream.reset(); |
| 1568 | contentType = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1569 | } |
| 1570 | } else { |
| 1571 | Log.e(LOG_TAG, "Corrupt content-type"); |
| 1572 | return (PduContentTypes.contentTypes[0]).getBytes(); //"*/*" |
| 1573 | } |
| 1574 | |
| 1575 | int endPos = pduDataStream.available(); |
| 1576 | int parameterLen = length - (startPos - endPos); |
| 1577 | if (parameterLen > 0) {//have parameters |
| 1578 | parseContentTypeParams(pduDataStream, map, parameterLen); |
| 1579 | } |
| 1580 | |
| 1581 | if (parameterLen < 0) { |
| 1582 | Log.e(LOG_TAG, "Corrupt MMS message"); |
| 1583 | return (PduContentTypes.contentTypes[0]).getBytes(); //"*/*" |
| 1584 | } |
| 1585 | } else if (cur <= TEXT_MAX) { |
| 1586 | contentType = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1587 | } else { |
| 1588 | contentType = |
| 1589 | (PduContentTypes.contentTypes[parseShortInteger(pduDataStream)]).getBytes(); |
| 1590 | } |
| 1591 | |
| 1592 | return contentType; |
| 1593 | } |
| 1594 | |
| 1595 | /** |
| 1596 | * Parse part's headers. |
| 1597 | * |
| 1598 | * @param pduDataStream pdu data input stream |
| 1599 | * @param part to store the header informations of the part |
| 1600 | * @param length length of the headers |
| 1601 | * @return true if parse successfully, false otherwise |
| 1602 | */ |
| 1603 | @UnsupportedAppUsage |
| 1604 | protected boolean parsePartHeaders(ByteArrayInputStream pduDataStream, |
| 1605 | PduPart part, int length) { |
| 1606 | assert(null != pduDataStream); |
| 1607 | assert(null != part); |
| 1608 | assert(length > 0); |
| 1609 | |
| 1610 | /** |
| 1611 | * From oma-ts-mms-conf-v1_3.pdf, chapter 10.2. |
| 1612 | * A name for multipart object SHALL be encoded using name-parameter |
| 1613 | * for Content-Type header in WSP multipart headers. |
| 1614 | * In decoding, name-parameter of Content-Type SHALL be used if available. |
| 1615 | * If name-parameter of Content-Type is not available, |
| 1616 | * filename parameter of Content-Disposition header SHALL be used if available. |
| 1617 | * If neither name-parameter of Content-Type header nor filename parameter |
| 1618 | * of Content-Disposition header is available, |
| 1619 | * Content-Location header SHALL be used if available. |
| 1620 | * |
| 1621 | * Within SMIL part the reference to the media object parts SHALL use |
| 1622 | * either Content-ID or Content-Location mechanism [RFC2557] |
| 1623 | * and the corresponding WSP part headers in media object parts |
| 1624 | * contain the corresponding definitions. |
| 1625 | */ |
| 1626 | int startPos = pduDataStream.available(); |
| 1627 | int tempPos = 0; |
| 1628 | int lastLen = length; |
| 1629 | while(0 < lastLen) { |
| 1630 | int header = pduDataStream.read(); |
| 1631 | assert(-1 != header); |
| 1632 | lastLen--; |
| 1633 | |
| 1634 | if (header > TEXT_MAX) { |
| 1635 | // Number assigned headers. |
| 1636 | switch (header) { |
| 1637 | case PduPart.P_CONTENT_LOCATION: |
| 1638 | /** |
| 1639 | * From wap-230-wsp-20010705-a.pdf, chapter 8.4.2.21 |
| 1640 | * Content-location-value = Uri-value |
| 1641 | */ |
| 1642 | byte[] contentLocation = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1643 | if (null != contentLocation) { |
| 1644 | part.setContentLocation(contentLocation); |
| 1645 | } |
| 1646 | |
| 1647 | tempPos = pduDataStream.available(); |
| 1648 | lastLen = length - (startPos - tempPos); |
| 1649 | break; |
| 1650 | case PduPart.P_CONTENT_ID: |
| 1651 | /** |
| 1652 | * From wap-230-wsp-20010705-a.pdf, chapter 8.4.2.21 |
| 1653 | * Content-ID-value = Quoted-string |
| 1654 | */ |
| 1655 | byte[] contentId = parseWapString(pduDataStream, TYPE_QUOTED_STRING); |
| 1656 | if (null != contentId) { |
| 1657 | part.setContentId(contentId); |
| 1658 | } |
| 1659 | |
| 1660 | tempPos = pduDataStream.available(); |
| 1661 | lastLen = length - (startPos - tempPos); |
| 1662 | break; |
| 1663 | case PduPart.P_DEP_CONTENT_DISPOSITION: |
| 1664 | case PduPart.P_CONTENT_DISPOSITION: |
| 1665 | /** |
| 1666 | * From wap-230-wsp-20010705-a.pdf, chapter 8.4.2.21 |
| 1667 | * Content-disposition-value = Value-length Disposition *(Parameter) |
| 1668 | * Disposition = Form-data | Attachment | Inline | Token-text |
| 1669 | * Form-data = <Octet 128> |
| 1670 | * Attachment = <Octet 129> |
| 1671 | * Inline = <Octet 130> |
| 1672 | */ |
| 1673 | |
| 1674 | /* |
| 1675 | * some carrier mmsc servers do not support content_disposition |
| 1676 | * field correctly |
| 1677 | */ |
| 1678 | if (mParseContentDisposition) { |
| 1679 | int len = parseValueLength(pduDataStream); |
| 1680 | pduDataStream.mark(1); |
| 1681 | int thisStartPos = pduDataStream.available(); |
| 1682 | int thisEndPos = 0; |
| 1683 | int value = pduDataStream.read(); |
| 1684 | |
| 1685 | if (value == PduPart.P_DISPOSITION_FROM_DATA ) { |
| 1686 | part.setContentDisposition(PduPart.DISPOSITION_FROM_DATA); |
| 1687 | } else if (value == PduPart.P_DISPOSITION_ATTACHMENT) { |
| 1688 | part.setContentDisposition(PduPart.DISPOSITION_ATTACHMENT); |
| 1689 | } else if (value == PduPart.P_DISPOSITION_INLINE) { |
| 1690 | part.setContentDisposition(PduPart.DISPOSITION_INLINE); |
| 1691 | } else { |
| 1692 | pduDataStream.reset(); |
| 1693 | /* Token-text */ |
| 1694 | part.setContentDisposition(parseWapString(pduDataStream |
| 1695 | , TYPE_TEXT_STRING)); |
| 1696 | } |
| 1697 | |
| 1698 | /* get filename parameter and skip other parameters */ |
| 1699 | thisEndPos = pduDataStream.available(); |
| 1700 | if (thisStartPos - thisEndPos < len) { |
| 1701 | value = pduDataStream.read(); |
| 1702 | if (value == PduPart.P_FILENAME) { //filename is text-string |
| 1703 | part.setFilename(parseWapString(pduDataStream |
| 1704 | , TYPE_TEXT_STRING)); |
| 1705 | } |
| 1706 | |
| 1707 | /* skip other parameters */ |
| 1708 | thisEndPos = pduDataStream.available(); |
| 1709 | if (thisStartPos - thisEndPos < len) { |
| 1710 | int last = len - (thisStartPos - thisEndPos); |
| 1711 | byte[] temp = new byte[last]; |
| 1712 | pduDataStream.read(temp, 0, last); |
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | tempPos = pduDataStream.available(); |
| 1717 | lastLen = length - (startPos - tempPos); |
| 1718 | } |
| 1719 | break; |
| 1720 | default: |
| 1721 | if (LOCAL_LOGV) { |
| 1722 | Log.v(LOG_TAG, "Not supported Part headers: " + header); |
| 1723 | } |
| 1724 | if (-1 == skipWapValue(pduDataStream, lastLen)) { |
| 1725 | Log.e(LOG_TAG, "Corrupt Part headers"); |
| 1726 | return false; |
| 1727 | } |
| 1728 | lastLen = 0; |
| 1729 | break; |
| 1730 | } |
| 1731 | } else if ((header >= TEXT_MIN) && (header <= TEXT_MAX)) { |
| 1732 | // Not assigned header. |
| 1733 | byte[] tempHeader = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1734 | byte[] tempValue = parseWapString(pduDataStream, TYPE_TEXT_STRING); |
| 1735 | |
| 1736 | // Check the header whether it is "Content-Transfer-Encoding". |
| 1737 | if (true == |
| 1738 | PduPart.CONTENT_TRANSFER_ENCODING.equalsIgnoreCase(new String(tempHeader))) { |
| 1739 | part.setContentTransferEncoding(tempValue); |
| 1740 | } |
| 1741 | |
| 1742 | tempPos = pduDataStream.available(); |
| 1743 | lastLen = length - (startPos - tempPos); |
| 1744 | } else { |
| 1745 | if (LOCAL_LOGV) { |
| 1746 | Log.v(LOG_TAG, "Not supported Part headers: " + header); |
| 1747 | } |
| 1748 | // Skip all headers of this part. |
| 1749 | if (-1 == skipWapValue(pduDataStream, lastLen)) { |
| 1750 | Log.e(LOG_TAG, "Corrupt Part headers"); |
| 1751 | return false; |
| 1752 | } |
| 1753 | lastLen = 0; |
| 1754 | } |
| 1755 | } |
| 1756 | |
| 1757 | if (0 != lastLen) { |
| 1758 | Log.e(LOG_TAG, "Corrupt Part headers"); |
| 1759 | return false; |
| 1760 | } |
| 1761 | |
| 1762 | return true; |
| 1763 | } |
| 1764 | |
| 1765 | /** |
| 1766 | * Check the position of a specified part. |
| 1767 | * |
| 1768 | * @param part the part to be checked |
| 1769 | * @return part position, THE_FIRST_PART when it's the |
| 1770 | * first one, THE_LAST_PART when it's the last one. |
| 1771 | */ |
| 1772 | @UnsupportedAppUsage |
| 1773 | private static int checkPartPosition(PduPart part) { |
| 1774 | assert(null != part); |
| 1775 | if ((null == mTypeParam) && |
| 1776 | (null == mStartParam)) { |
| 1777 | return THE_LAST_PART; |
| 1778 | } |
| 1779 | |
| 1780 | /* check part's content-id */ |
| 1781 | if (null != mStartParam) { |
| 1782 | byte[] contentId = part.getContentId(); |
| 1783 | if (null != contentId) { |
| 1784 | if (true == Arrays.equals(mStartParam, contentId)) { |
| 1785 | return THE_FIRST_PART; |
| 1786 | } |
| 1787 | } |
| 1788 | // This is not the first part, so append to end (keeping the original order) |
| 1789 | // Check b/19607294 for details of this change |
| 1790 | return THE_LAST_PART; |
| 1791 | } |
| 1792 | |
| 1793 | /* check part's content-type */ |
| 1794 | if (null != mTypeParam) { |
| 1795 | byte[] contentType = part.getContentType(); |
| 1796 | if (null != contentType) { |
| 1797 | if (true == Arrays.equals(mTypeParam, contentType)) { |
| 1798 | return THE_FIRST_PART; |
| 1799 | } |
| 1800 | } |
| 1801 | } |
| 1802 | |
| 1803 | return THE_LAST_PART; |
| 1804 | } |
| 1805 | |
| 1806 | /** |
| 1807 | * Check mandatory headers of a pdu. |
| 1808 | * |
| 1809 | * @param headers pdu headers |
| 1810 | * @return true if the pdu has all of the mandatory headers, false otherwise. |
| 1811 | */ |
| 1812 | protected static boolean checkMandatoryHeader(PduHeaders headers) { |
| 1813 | if (null == headers) { |
| 1814 | return false; |
| 1815 | } |
| 1816 | |
| 1817 | /* get message type */ |
| 1818 | int messageType = headers.getOctet(PduHeaders.MESSAGE_TYPE); |
| 1819 | |
| 1820 | /* check Mms-Version field */ |
| 1821 | int mmsVersion = headers.getOctet(PduHeaders.MMS_VERSION); |
| 1822 | if (0 == mmsVersion) { |
| 1823 | // Every message should have Mms-Version field. |
| 1824 | return false; |
| 1825 | } |
| 1826 | |
| 1827 | /* check mandatory header fields */ |
| 1828 | switch (messageType) { |
| 1829 | case PduHeaders.MESSAGE_TYPE_SEND_REQ: |
| 1830 | // Content-Type field. |
| 1831 | byte[] srContentType = headers.getTextString(PduHeaders.CONTENT_TYPE); |
| 1832 | if (null == srContentType) { |
| 1833 | return false; |
| 1834 | } |
| 1835 | |
| 1836 | // From field. |
| 1837 | EncodedStringValue srFrom = headers.getEncodedStringValue(PduHeaders.FROM); |
| 1838 | if (null == srFrom) { |
| 1839 | return false; |
| 1840 | } |
| 1841 | |
| 1842 | // Transaction-Id field. |
| 1843 | byte[] srTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID); |
| 1844 | if (null == srTransactionId) { |
| 1845 | return false; |
| 1846 | } |
| 1847 | |
| 1848 | break; |
| 1849 | case PduHeaders.MESSAGE_TYPE_SEND_CONF: |
| 1850 | // Response-Status field. |
| 1851 | int scResponseStatus = headers.getOctet(PduHeaders.RESPONSE_STATUS); |
| 1852 | if (0 == scResponseStatus) { |
| 1853 | return false; |
| 1854 | } |
| 1855 | |
| 1856 | // Transaction-Id field. |
| 1857 | byte[] scTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID); |
| 1858 | if (null == scTransactionId) { |
| 1859 | return false; |
| 1860 | } |
| 1861 | |
| 1862 | break; |
| 1863 | case PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND: |
| 1864 | // Content-Location field. |
| 1865 | byte[] niContentLocation = headers.getTextString(PduHeaders.CONTENT_LOCATION); |
| 1866 | if (null == niContentLocation) { |
| 1867 | return false; |
| 1868 | } |
| 1869 | |
| 1870 | // Expiry field. |
| 1871 | long niExpiry = headers.getLongInteger(PduHeaders.EXPIRY); |
| 1872 | if (-1 == niExpiry) { |
| 1873 | return false; |
| 1874 | } |
| 1875 | |
| 1876 | // Message-Class field. |
| 1877 | byte[] niMessageClass = headers.getTextString(PduHeaders.MESSAGE_CLASS); |
| 1878 | if (null == niMessageClass) { |
| 1879 | return false; |
| 1880 | } |
| 1881 | |
| 1882 | // Message-Size field. |
| 1883 | long niMessageSize = headers.getLongInteger(PduHeaders.MESSAGE_SIZE); |
| 1884 | if (-1 == niMessageSize) { |
| 1885 | return false; |
| 1886 | } |
| 1887 | |
| 1888 | // Transaction-Id field. |
| 1889 | byte[] niTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID); |
| 1890 | if (null == niTransactionId) { |
| 1891 | return false; |
| 1892 | } |
| 1893 | |
| 1894 | break; |
| 1895 | case PduHeaders.MESSAGE_TYPE_NOTIFYRESP_IND: |
| 1896 | // Status field. |
| 1897 | int nriStatus = headers.getOctet(PduHeaders.STATUS); |
| 1898 | if (0 == nriStatus) { |
| 1899 | return false; |
| 1900 | } |
| 1901 | |
| 1902 | // Transaction-Id field. |
| 1903 | byte[] nriTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID); |
| 1904 | if (null == nriTransactionId) { |
| 1905 | return false; |
| 1906 | } |
| 1907 | |
| 1908 | break; |
| 1909 | case PduHeaders.MESSAGE_TYPE_RETRIEVE_CONF: |
| 1910 | // Content-Type field. |
| 1911 | byte[] rcContentType = headers.getTextString(PduHeaders.CONTENT_TYPE); |
| 1912 | if (null == rcContentType) { |
| 1913 | return false; |
| 1914 | } |
| 1915 | |
| 1916 | // Date field. |
| 1917 | long rcDate = headers.getLongInteger(PduHeaders.DATE); |
| 1918 | if (-1 == rcDate) { |
| 1919 | return false; |
| 1920 | } |
| 1921 | |
| 1922 | break; |
| 1923 | case PduHeaders.MESSAGE_TYPE_DELIVERY_IND: |
| 1924 | // Date field. |
| 1925 | long diDate = headers.getLongInteger(PduHeaders.DATE); |
| 1926 | if (-1 == diDate) { |
| 1927 | return false; |
| 1928 | } |
| 1929 | |
| 1930 | // Message-Id field. |
| 1931 | byte[] diMessageId = headers.getTextString(PduHeaders.MESSAGE_ID); |
| 1932 | if (null == diMessageId) { |
| 1933 | return false; |
| 1934 | } |
| 1935 | |
| 1936 | // Status field. |
| 1937 | int diStatus = headers.getOctet(PduHeaders.STATUS); |
| 1938 | if (0 == diStatus) { |
| 1939 | return false; |
| 1940 | } |
| 1941 | |
| 1942 | // To field. |
| 1943 | EncodedStringValue[] diTo = headers.getEncodedStringValues(PduHeaders.TO); |
| 1944 | if (null == diTo) { |
| 1945 | return false; |
| 1946 | } |
| 1947 | |
| 1948 | break; |
| 1949 | case PduHeaders.MESSAGE_TYPE_ACKNOWLEDGE_IND: |
| 1950 | // Transaction-Id field. |
| 1951 | byte[] aiTransactionId = headers.getTextString(PduHeaders.TRANSACTION_ID); |
| 1952 | if (null == aiTransactionId) { |
| 1953 | return false; |
| 1954 | } |
| 1955 | |
| 1956 | break; |
| 1957 | case PduHeaders.MESSAGE_TYPE_READ_ORIG_IND: |
| 1958 | // Date field. |
| 1959 | long roDate = headers.getLongInteger(PduHeaders.DATE); |
| 1960 | if (-1 == roDate) { |
| 1961 | return false; |
| 1962 | } |
| 1963 | |
| 1964 | // From field. |
| 1965 | EncodedStringValue roFrom = headers.getEncodedStringValue(PduHeaders.FROM); |
| 1966 | if (null == roFrom) { |
| 1967 | return false; |
| 1968 | } |
| 1969 | |
| 1970 | // Message-Id field. |
| 1971 | byte[] roMessageId = headers.getTextString(PduHeaders.MESSAGE_ID); |
| 1972 | if (null == roMessageId) { |
| 1973 | return false; |
| 1974 | } |
| 1975 | |
| 1976 | // Read-Status field. |
| 1977 | int roReadStatus = headers.getOctet(PduHeaders.READ_STATUS); |
| 1978 | if (0 == roReadStatus) { |
| 1979 | return false; |
| 1980 | } |
| 1981 | |
| 1982 | // To field. |
| 1983 | EncodedStringValue[] roTo = headers.getEncodedStringValues(PduHeaders.TO); |
| 1984 | if (null == roTo) { |
| 1985 | return false; |
| 1986 | } |
| 1987 | |
| 1988 | break; |
| 1989 | case PduHeaders.MESSAGE_TYPE_READ_REC_IND: |
| 1990 | // From field. |
| 1991 | EncodedStringValue rrFrom = headers.getEncodedStringValue(PduHeaders.FROM); |
| 1992 | if (null == rrFrom) { |
| 1993 | return false; |
| 1994 | } |
| 1995 | |
| 1996 | // Message-Id field. |
| 1997 | byte[] rrMessageId = headers.getTextString(PduHeaders.MESSAGE_ID); |
| 1998 | if (null == rrMessageId) { |
| 1999 | return false; |
| 2000 | } |
| 2001 | |
| 2002 | // Read-Status field. |
| 2003 | int rrReadStatus = headers.getOctet(PduHeaders.READ_STATUS); |
| 2004 | if (0 == rrReadStatus) { |
| 2005 | return false; |
| 2006 | } |
| 2007 | |
| 2008 | // To field. |
| 2009 | EncodedStringValue[] rrTo = headers.getEncodedStringValues(PduHeaders.TO); |
| 2010 | if (null == rrTo) { |
| 2011 | return false; |
| 2012 | } |
| 2013 | |
| 2014 | break; |
| 2015 | default: |
| 2016 | // Parser doesn't support this message type in this version. |
| 2017 | return false; |
| 2018 | } |
| 2019 | |
| 2020 | return true; |
| 2021 | } |
| 2022 | } |