1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.provider; 18 19 import android.app.DownloadManager; 20 import android.content.Context; 21 import android.net.NetworkPolicyManager; 22 import android.net.Uri; 23 24 /** 25 * The Download Manager 26 * 27 * @pending 28 */ 29 public final class Downloads { 30 private Downloads() {} 31 32 /** 33 * Implementation details 34 * 35 * Exposes constants used to interact with the download manager's 36 * content provider. 37 * The constants URI ... STATUS are the names of columns in the downloads table. 38 * 39 * @hide 40 */ 41 public static final class Impl implements BaseColumns { 42 private Impl() {} 43 44 public static final String AUTHORITY = "downloads"; 45 46 /** 47 * The permission to access the download manager 48 */ 49 public static final String PERMISSION_ACCESS = "android.permission.ACCESS_DOWNLOAD_MANAGER"; 50 51 /** 52 * The permission to access the download manager's advanced functions 53 */ 54 public static final String PERMISSION_ACCESS_ADVANCED = 55 "android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED"; 56 57 /** 58 * The permission to access the all the downloads in the manager. 59 */ 60 public static final String PERMISSION_ACCESS_ALL = 61 "android.permission.ACCESS_ALL_DOWNLOADS"; 62 63 /** 64 * The permission to directly access the download manager's cache 65 * directory 66 */ 67 public static final String PERMISSION_CACHE = "android.permission.ACCESS_CACHE_FILESYSTEM"; 68 69 /** 70 * The permission to send broadcasts on download completion 71 */ 72 public static final String PERMISSION_SEND_INTENTS = 73 "android.permission.SEND_DOWNLOAD_COMPLETED_INTENTS"; 74 75 /** 76 * The permission to download files to the cache partition that won't be automatically 77 * purged when space is needed. 78 */ 79 public static final String PERMISSION_CACHE_NON_PURGEABLE = 80 "android.permission.DOWNLOAD_CACHE_NON_PURGEABLE"; 81 82 /** 83 * The permission to download files without any system notification being shown. 84 */ 85 public static final String PERMISSION_NO_NOTIFICATION = 86 "android.permission.DOWNLOAD_WITHOUT_NOTIFICATION"; 87 88 /** 89 * The content:// URI to access downloads owned by the caller's UID. 90 */ 91 public static final Uri CONTENT_URI = 92 Uri.parse("content://downloads/my_downloads"); 93 94 /** 95 * The content URI for accessing all downloads across all UIDs (requires the 96 * ACCESS_ALL_DOWNLOADS permission). 97 */ 98 public static final Uri ALL_DOWNLOADS_CONTENT_URI = 99 Uri.parse("content://downloads/all_downloads"); 100 101 /** URI segment to access a publicly accessible downloaded file */ 102 public static final String PUBLICLY_ACCESSIBLE_DOWNLOADS_URI_SEGMENT = "public_downloads"; 103 104 /** 105 * The content URI for accessing publicly accessible downloads (i.e., it requires no 106 * permissions to access this downloaded file) 107 */ 108 public static final Uri PUBLICLY_ACCESSIBLE_DOWNLOADS_URI = 109 Uri.parse("content://downloads/" + PUBLICLY_ACCESSIBLE_DOWNLOADS_URI_SEGMENT); 110 111 /** 112 * Broadcast Action: this is sent by the download manager to the app 113 * that had initiated a download when that download completes. The 114 * download's content: uri is specified in the intent's data. 115 */ 116 public static final String ACTION_DOWNLOAD_COMPLETED = 117 DownloadManager.ACTION_DOWNLOAD_COMPLETED; 118 119 /** 120 * Broadcast Action: this is sent by the download manager to the app 121 * that had initiated a download when the user selects the notification 122 * associated with that download. The download's content: uri is specified 123 * in the intent's data if the click is associated with a single download, 124 * or Downloads.CONTENT_URI if the notification is associated with 125 * multiple downloads. 126 * Note: this is not currently sent for downloads that have completed 127 * successfully. 128 */ 129 public static final String ACTION_NOTIFICATION_CLICKED = 130 DownloadManager.ACTION_NOTIFICATION_CLICKED; 131 132 /** 133 * The name of the column containing the URI of the data being downloaded. 134 * <P>Type: TEXT</P> 135 * <P>Owner can Init/Read</P> 136 */ 137 public static final String COLUMN_URI = "uri"; 138 139 /** 140 * The name of the column containing application-specific data. 141 * <P>Type: TEXT</P> 142 * <P>Owner can Init/Read/Write</P> 143 */ 144 public static final String COLUMN_APP_DATA = "entity"; 145 146 /** 147 * The name of the column containing the flags that indicates whether 148 * the initiating application is capable of verifying the integrity of 149 * the downloaded file. When this flag is set, the download manager 150 * performs downloads and reports success even in some situations where 151 * it can't guarantee that the download has completed (e.g. when doing 152 * a byte-range request without an ETag, or when it can't determine 153 * whether a download fully completed). 154 * <P>Type: BOOLEAN</P> 155 * <P>Owner can Init</P> 156 */ 157 public static final String COLUMN_NO_INTEGRITY = "no_integrity"; 158 159 /** 160 * The name of the column containing the filename that the initiating 161 * application recommends. When possible, the download manager will attempt 162 * to use this filename, or a variation, as the actual name for the file. 163 * <P>Type: TEXT</P> 164 * <P>Owner can Init</P> 165 */ 166 public static final String COLUMN_FILE_NAME_HINT = "hint"; 167 168 /** 169 * The name of the column containing the filename where the downloaded data 170 * was actually stored. 171 * <P>Type: TEXT</P> 172 * <P>Owner can Read</P> 173 */ 174 public static final String _DATA = "_data"; 175 176 /** 177 * The name of the column containing the MIME type of the downloaded data. 178 * <P>Type: TEXT</P> 179 * <P>Owner can Init/Read</P> 180 */ 181 public static final String COLUMN_MIME_TYPE = "mimetype"; 182 183 /** 184 * The name of the column containing the flag that controls the destination 185 * of the download. See the DESTINATION_* constants for a list of legal values. 186 * <P>Type: INTEGER</P> 187 * <P>Owner can Init</P> 188 */ 189 public static final String COLUMN_DESTINATION = "destination"; 190 191 /** 192 * The name of the column containing the flags that controls whether the 193 * download is displayed by the UI. See the VISIBILITY_* constants for 194 * a list of legal values. 195 * <P>Type: INTEGER</P> 196 * <P>Owner can Init/Read/Write</P> 197 */ 198 public static final String COLUMN_VISIBILITY = "visibility"; 199 200 /** 201 * The name of the column containing the current control state of the download. 202 * Applications can write to this to control (pause/resume) the download. 203 * the CONTROL_* constants for a list of legal values. 204 * <P>Type: INTEGER</P> 205 * <P>Owner can Read</P> 206 */ 207 public static final String COLUMN_CONTROL = "control"; 208 209 /** 210 * The name of the column containing the current status of the download. 211 * Applications can read this to follow the progress of each download. See 212 * the STATUS_* constants for a list of legal values. 213 * <P>Type: INTEGER</P> 214 * <P>Owner can Read</P> 215 */ 216 public static final String COLUMN_STATUS = "status"; 217 218 /** 219 * The name of the column containing the date at which some interesting 220 * status changed in the download. Stored as a System.currentTimeMillis() 221 * value. 222 * <P>Type: BIGINT</P> 223 * <P>Owner can Read</P> 224 */ 225 public static final String COLUMN_LAST_MODIFICATION = "lastmod"; 226 227 /** 228 * The name of the column containing the package name of the application 229 * that initiating the download. The download manager will send 230 * notifications to a component in this package when the download completes. 231 * <P>Type: TEXT</P> 232 * <P>Owner can Init/Read</P> 233 */ 234 public static final String COLUMN_NOTIFICATION_PACKAGE = "notificationpackage"; 235 236 /** 237 * The name of the column containing the component name of the class that 238 * will receive notifications associated with the download. The 239 * package/class combination is passed to 240 * Intent.setClassName(String,String). 241 * <P>Type: TEXT</P> 242 * <P>Owner can Init/Read</P> 243 */ 244 public static final String COLUMN_NOTIFICATION_CLASS = "notificationclass"; 245 246 /** 247 * If extras are specified when requesting a download they will be provided in the intent that 248 * is sent to the specified class and package when a download has finished. 249 * <P>Type: TEXT</P> 250 * <P>Owner can Init</P> 251 */ 252 public static final String COLUMN_NOTIFICATION_EXTRAS = "notificationextras"; 253 254 /** 255 * The name of the column contain the values of the cookie to be used for 256 * the download. This is used directly as the value for the Cookie: HTTP 257 * header that gets sent with the request. 258 * <P>Type: TEXT</P> 259 * <P>Owner can Init</P> 260 */ 261 public static final String COLUMN_COOKIE_DATA = "cookiedata"; 262 263 /** 264 * The name of the column containing the user agent that the initiating 265 * application wants the download manager to use for this download. 266 * <P>Type: TEXT</P> 267 * <P>Owner can Init</P> 268 */ 269 public static final String COLUMN_USER_AGENT = "useragent"; 270 271 /** 272 * The name of the column containing the referer (sic) that the initiating 273 * application wants the download manager to use for this download. 274 * <P>Type: TEXT</P> 275 * <P>Owner can Init</P> 276 */ 277 public static final String COLUMN_REFERER = "referer"; 278 279 /** 280 * The name of the column containing the total size of the file being 281 * downloaded. 282 * <P>Type: INTEGER</P> 283 * <P>Owner can Read</P> 284 */ 285 public static final String COLUMN_TOTAL_BYTES = "total_bytes"; 286 287 /** 288 * The name of the column containing the size of the part of the file that 289 * has been downloaded so far. 290 * <P>Type: INTEGER</P> 291 * <P>Owner can Read</P> 292 */ 293 public static final String COLUMN_CURRENT_BYTES = "current_bytes"; 294 295 /** 296 * The name of the column where the initiating application can provide the 297 * UID of another application that is allowed to access this download. If 298 * multiple applications share the same UID, all those applications will be 299 * allowed to access this download. This column can be updated after the 300 * download is initiated. This requires the permission 301 * android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED. 302 * <P>Type: INTEGER</P> 303 * <P>Owner can Init</P> 304 */ 305 public static final String COLUMN_OTHER_UID = "otheruid"; 306 307 /** 308 * The name of the column where the initiating application can provided the 309 * title of this download. The title will be displayed ito the user in the 310 * list of downloads. 311 * <P>Type: TEXT</P> 312 * <P>Owner can Init/Read/Write</P> 313 */ 314 public static final String COLUMN_TITLE = "title"; 315 316 /** 317 * The name of the column where the initiating application can provide the 318 * description of this download. The description will be displayed to the 319 * user in the list of downloads. 320 * <P>Type: TEXT</P> 321 * <P>Owner can Init/Read/Write</P> 322 */ 323 public static final String COLUMN_DESCRIPTION = "description"; 324 325 /** 326 * The name of the column indicating whether the download was requesting through the public 327 * API. This controls some differences in behavior. 328 * <P>Type: BOOLEAN</P> 329 * <P>Owner can Init/Read</P> 330 */ 331 public static final String COLUMN_IS_PUBLIC_API = "is_public_api"; 332 333 /** 334 * The name of the column holding a bitmask of allowed network types. This is only used for 335 * public API downloads. 336 * <P>Type: INTEGER</P> 337 * <P>Owner can Init/Read</P> 338 */ 339 public static final String COLUMN_ALLOWED_NETWORK_TYPES = "allowed_network_types"; 340 341 /** 342 * The name of the column indicating whether roaming connections can be used. This is only 343 * used for public API downloads. 344 * <P>Type: BOOLEAN</P> 345 * <P>Owner can Init/Read</P> 346 */ 347 public static final String COLUMN_ALLOW_ROAMING = "allow_roaming"; 348 349 /** 350 * The name of the column indicating whether metered connections can be used. This is only 351 * used for public API downloads. 352 * <P>Type: BOOLEAN</P> 353 * <P>Owner can Init/Read</P> 354 */ 355 public static final String COLUMN_ALLOW_METERED = "allow_metered"; 356 357 /** 358 * Whether or not this download should be displayed in the system's Downloads UI. Defaults 359 * to true. 360 * <P>Type: INTEGER</P> 361 * <P>Owner can Init/Read</P> 362 */ 363 public static final String COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI = "is_visible_in_downloads_ui"; 364 365 /** 366 * If true, the user has confirmed that this download can proceed over the mobile network 367 * even though it exceeds the recommended maximum size. 368 * <P>Type: BOOLEAN</P> 369 */ 370 public static final String COLUMN_BYPASS_RECOMMENDED_SIZE_LIMIT = 371 "bypass_recommended_size_limit"; 372 373 /** 374 * Set to true if this download is deleted. It is completely removed from the database 375 * when MediaProvider database also deletes the metadata asociated with this downloaded file. 376 * <P>Type: BOOLEAN</P> 377 * <P>Owner can Read</P> 378 */ 379 public static final String COLUMN_DELETED = "deleted"; 380 381 /** 382 * The URI to the corresponding entry in MediaProvider for this downloaded entry. It is 383 * used to delete the entries from MediaProvider database when it is deleted from the 384 * downloaded list. 385 * <P>Type: TEXT</P> 386 * <P>Owner can Read</P> 387 */ 388 public static final String COLUMN_MEDIAPROVIDER_URI = "mediaprovider_uri"; 389 390 /** 391 * The column that is used to remember whether the media scanner was invoked. 392 * It can take the values: null or 0(not scanned), 1(scanned), 2 (not scannable). 393 * <P>Type: TEXT</P> 394 */ 395 public static final String COLUMN_MEDIA_SCANNED = "scanned"; 396 397 /** 398 * The column with errorMsg for a failed downloaded. 399 * Used only for debugging purposes. 400 * <P>Type: TEXT</P> 401 */ 402 public static final String COLUMN_ERROR_MSG = "errorMsg"; 403 404 /** 405 * This column stores the source of the last update to this row. 406 * This column is only for internal use. 407 * Valid values are indicated by LAST_UPDATESRC_* constants. 408 * <P>Type: INT</P> 409 */ 410 public static final String COLUMN_LAST_UPDATESRC = "lastUpdateSrc"; 411 412 /** The column that is used to count retries */ 413 public static final String COLUMN_FAILED_CONNECTIONS = "numfailed"; 414 415 public static final String COLUMN_ALLOW_WRITE = "allow_write"; 416 417 public static final int FLAG_REQUIRES_CHARGING = 1 << 0; 418 public static final int FLAG_REQUIRES_DEVICE_IDLE = 1 << 1; 419 420 public static final String COLUMN_FLAGS = "flags"; 421 422 /** 423 * default value for {@link #COLUMN_LAST_UPDATESRC}. 424 * This value is used when this column's value is not relevant. 425 */ 426 public static final int LAST_UPDATESRC_NOT_RELEVANT = 0; 427 428 /** 429 * One of the values taken by {@link #COLUMN_LAST_UPDATESRC}. 430 * This value is used when the update is NOT to be relayed to the DownloadService 431 * (and thus spare DownloadService from scanning the database when this change occurs) 432 */ 433 public static final int LAST_UPDATESRC_DONT_NOTIFY_DOWNLOADSVC = 1; 434 435 /* 436 * Lists the destinations that an application can specify for a download. 437 */ 438 439 /** 440 * This download will be saved to the external storage. This is the 441 * default behavior, and should be used for any file that the user 442 * can freely access, copy, delete. Even with that destination, 443 * unencrypted DRM files are saved in secure internal storage. 444 * Downloads to the external destination only write files for which 445 * there is a registered handler. The resulting files are accessible 446 * by filename to all applications. 447 */ 448 public static final int DESTINATION_EXTERNAL = 0; 449 450 /** 451 * This download will be saved to the download manager's private 452 * partition. This is the behavior used by applications that want to 453 * download private files that are used and deleted soon after they 454 * get downloaded. All file types are allowed, and only the initiating 455 * application can access the file (indirectly through a content 456 * provider). This requires the 457 * android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED permission. 458 */ 459 public static final int DESTINATION_CACHE_PARTITION = 1; 460 461 /** 462 * This download will be saved to the download manager's private 463 * partition and will be purged as necessary to make space. This is 464 * for private files (similar to CACHE_PARTITION) that aren't deleted 465 * immediately after they are used, and are kept around by the download 466 * manager as long as space is available. 467 */ 468 public static final int DESTINATION_CACHE_PARTITION_PURGEABLE = 2; 469 470 /** 471 * This download will be saved to the download manager's private 472 * partition, as with DESTINATION_CACHE_PARTITION, but the download 473 * will not proceed if the user is on a roaming data connection. 474 */ 475 public static final int DESTINATION_CACHE_PARTITION_NOROAMING = 3; 476 477 /** 478 * This download will be saved to the location given by the file URI in 479 * {@link #COLUMN_FILE_NAME_HINT}. 480 */ 481 public static final int DESTINATION_FILE_URI = 4; 482 483 /** 484 * This download will be saved to the system cache ("/cache") 485 * partition. This option is only used by system apps and so it requires 486 * android.permission.ACCESS_CACHE_FILESYSTEM permission. 487 */ 488 public static final int DESTINATION_SYSTEMCACHE_PARTITION = 5; 489 490 /** 491 * This download was completed by the caller (i.e., NOT downloadmanager) 492 * and caller wants to have this download displayed in Downloads App. 493 */ 494 public static final int DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD = 6; 495 496 /** 497 * This download is allowed to run. 498 */ 499 public static final int CONTROL_RUN = 0; 500 501 /** 502 * This download must pause at the first opportunity. 503 */ 504 public static final int CONTROL_PAUSED = 1; 505 506 /* 507 * Lists the states that the download manager can set on a download 508 * to notify applications of the download progress. 509 * The codes follow the HTTP families:<br> 510 * 1xx: informational<br> 511 * 2xx: success<br> 512 * 3xx: redirects (not used by the download manager)<br> 513 * 4xx: client errors<br> 514 * 5xx: server errors 515 */ 516 517 /** 518 * Returns whether the status is informational (i.e. 1xx). 519 */ 520 public static boolean isStatusInformational(int status) { 521 return (status >= 100 && status < 200); 522 } 523 524 /** 525 * Returns whether the status is a success (i.e. 2xx). 526 */ 527 public static boolean isStatusSuccess(int status) { 528 return (status >= 200 && status < 300); 529 } 530 531 /** 532 * Returns whether the status is an error (i.e. 4xx or 5xx). 533 */ 534 public static boolean isStatusError(int status) { 535 return (status >= 400 && status < 600); 536 } 537 538 /** 539 * Returns whether the status is a client error (i.e. 4xx). 540 */ 541 public static boolean isStatusClientError(int status) { 542 return (status >= 400 && status < 500); 543 } 544 545 /** 546 * Returns whether the status is a server error (i.e. 5xx). 547 */ 548 public static boolean isStatusServerError(int status) { 549 return (status >= 500 && status < 600); 550 } 551 552 /** 553 * this method determines if a notification should be displayed for a 554 * given {@link #COLUMN_VISIBILITY} value 555 * @param visibility the value of {@link #COLUMN_VISIBILITY}. 556 * @return true if the notification should be displayed. false otherwise. 557 */ 558 public static boolean isNotificationToBeDisplayed(int visibility) { 559 return visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED || 560 visibility == DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_ONLY_COMPLETION; 561 } 562 563 /** 564 * Returns whether the download has completed (either with success or 565 * error). 566 */ 567 public static boolean isStatusCompleted(int status) { 568 return (status >= 200 && status < 300) || (status >= 400 && status < 600); 569 } 570 571 /** 572 * This download hasn't stated yet 573 */ 574 public static final int STATUS_PENDING = 190; 575 576 /** 577 * This download has started 578 */ 579 public static final int STATUS_RUNNING = 192; 580 581 /** 582 * This download has been paused by the owning app. 583 */ 584 public static final int STATUS_PAUSED_BY_APP = 193; 585 586 /** 587 * This download encountered some network error and is waiting before retrying the request. 588 */ 589 public static final int STATUS_WAITING_TO_RETRY = 194; 590 591 /** 592 * This download is waiting for network connectivity to proceed. 593 */ 594 public static final int STATUS_WAITING_FOR_NETWORK = 195; 595 596 /** 597 * This download exceeded a size limit for mobile networks and is waiting for a Wi-Fi 598 * connection to proceed. 599 */ 600 public static final int STATUS_QUEUED_FOR_WIFI = 196; 601 602 /** 603 * This download couldn't be completed due to insufficient storage 604 * space. Typically, this is because the SD card is full. 605 */ 606 public static final int STATUS_INSUFFICIENT_SPACE_ERROR = 198; 607 608 /** 609 * This download couldn't be completed because no external storage 610 * device was found. Typically, this is because the SD card is not 611 * mounted. 612 */ 613 public static final int STATUS_DEVICE_NOT_FOUND_ERROR = 199; 614 615 /** 616 * This download has successfully completed. 617 * Warning: there might be other status values that indicate success 618 * in the future. 619 * Use isStatusSuccess() to capture the entire category. 620 */ 621 public static final int STATUS_SUCCESS = 200; 622 623 /** 624 * This request couldn't be parsed. This is also used when processing 625 * requests with unknown/unsupported URI schemes. 626 */ 627 public static final int STATUS_BAD_REQUEST = 400; 628 629 /** 630 * This download can't be performed because the content type cannot be 631 * handled. 632 */ 633 public static final int STATUS_NOT_ACCEPTABLE = 406; 634 635 /** 636 * This download cannot be performed because the length cannot be 637 * determined accurately. This is the code for the HTTP error "Length 638 * Required", which is typically used when making requests that require 639 * a content length but don't have one, and it is also used in the 640 * client when a response is received whose length cannot be determined 641 * accurately (therefore making it impossible to know when a download 642 * completes). 643 */ 644 public static final int STATUS_LENGTH_REQUIRED = 411; 645 646 /** 647 * This download was interrupted and cannot be resumed. 648 * This is the code for the HTTP error "Precondition Failed", and it is 649 * also used in situations where the client doesn't have an ETag at all. 650 */ 651 public static final int STATUS_PRECONDITION_FAILED = 412; 652 653 /** 654 * The lowest-valued error status that is not an actual HTTP status code. 655 */ 656 public static final int MIN_ARTIFICIAL_ERROR_STATUS = 488; 657 658 /** 659 * The requested destination file already exists. 660 */ 661 public static final int STATUS_FILE_ALREADY_EXISTS_ERROR = 488; 662 663 /** 664 * Some possibly transient error occurred, but we can't resume the download. 665 */ 666 public static final int STATUS_CANNOT_RESUME = 489; 667 668 /** 669 * This download was canceled 670 */ 671 public static final int STATUS_CANCELED = 490; 672 673 /** 674 * This download has completed with an error. 675 * Warning: there will be other status values that indicate errors in 676 * the future. Use isStatusError() to capture the entire category. 677 */ 678 public static final int STATUS_UNKNOWN_ERROR = 491; 679 680 /** 681 * This download couldn't be completed because of a storage issue. 682 * Typically, that's because the filesystem is missing or full. 683 * Use the more specific {@link #STATUS_INSUFFICIENT_SPACE_ERROR} 684 * and {@link #STATUS_DEVICE_NOT_FOUND_ERROR} when appropriate. 685 */ 686 public static final int STATUS_FILE_ERROR = 492; 687 688 /** 689 * This download couldn't be completed because of an HTTP 690 * redirect response that the download manager couldn't 691 * handle. 692 */ 693 public static final int STATUS_UNHANDLED_REDIRECT = 493; 694 695 /** 696 * This download couldn't be completed because of an 697 * unspecified unhandled HTTP code. 698 */ 699 public static final int STATUS_UNHANDLED_HTTP_CODE = 494; 700 701 /** 702 * This download couldn't be completed because of an 703 * error receiving or processing data at the HTTP level. 704 */ 705 public static final int STATUS_HTTP_DATA_ERROR = 495; 706 707 /** 708 * This download couldn't be completed because of an 709 * HttpException while setting up the request. 710 */ 711 public static final int STATUS_HTTP_EXCEPTION = 496; 712 713 /** 714 * This download couldn't be completed because there were 715 * too many redirects. 716 */ 717 public static final int STATUS_TOO_MANY_REDIRECTS = 497; 718 719 /** 720 * This download has failed because requesting application has been 721 * blocked by {@link NetworkPolicyManager}. 722 * 723 * @hide 724 * @deprecated since behavior now uses 725 * {@link #STATUS_WAITING_FOR_NETWORK} 726 */ 727 @Deprecated 728 public static final int STATUS_BLOCKED = 498; 729 730 /** {@hide} */ 731 public static String statusToString(int status) { 732 switch (status) { 733 case STATUS_PENDING: return "PENDING"; 734 case STATUS_RUNNING: return "RUNNING"; 735 case STATUS_PAUSED_BY_APP: return "PAUSED_BY_APP"; 736 case STATUS_WAITING_TO_RETRY: return "WAITING_TO_RETRY"; 737 case STATUS_WAITING_FOR_NETWORK: return "WAITING_FOR_NETWORK"; 738 case STATUS_QUEUED_FOR_WIFI: return "QUEUED_FOR_WIFI"; 739 case STATUS_INSUFFICIENT_SPACE_ERROR: return "INSUFFICIENT_SPACE_ERROR"; 740 case STATUS_DEVICE_NOT_FOUND_ERROR: return "DEVICE_NOT_FOUND_ERROR"; 741 case STATUS_SUCCESS: return "SUCCESS"; 742 case STATUS_BAD_REQUEST: return "BAD_REQUEST"; 743 case STATUS_NOT_ACCEPTABLE: return "NOT_ACCEPTABLE"; 744 case STATUS_LENGTH_REQUIRED: return "LENGTH_REQUIRED"; 745 case STATUS_PRECONDITION_FAILED: return "PRECONDITION_FAILED"; 746 case STATUS_FILE_ALREADY_EXISTS_ERROR: return "FILE_ALREADY_EXISTS_ERROR"; 747 case STATUS_CANNOT_RESUME: return "CANNOT_RESUME"; 748 case STATUS_CANCELED: return "CANCELED"; 749 case STATUS_UNKNOWN_ERROR: return "UNKNOWN_ERROR"; 750 case STATUS_FILE_ERROR: return "FILE_ERROR"; 751 case STATUS_UNHANDLED_REDIRECT: return "UNHANDLED_REDIRECT"; 752 case STATUS_UNHANDLED_HTTP_CODE: return "UNHANDLED_HTTP_CODE"; 753 case STATUS_HTTP_DATA_ERROR: return "HTTP_DATA_ERROR"; 754 case STATUS_HTTP_EXCEPTION: return "HTTP_EXCEPTION"; 755 case STATUS_TOO_MANY_REDIRECTS: return "TOO_MANY_REDIRECTS"; 756 case STATUS_BLOCKED: return "BLOCKED"; 757 default: return Integer.toString(status); 758 } 759 } 760 761 /** 762 * This download is visible but only shows in the notifications 763 * while it's in progress. 764 */ 765 public static final int VISIBILITY_VISIBLE = DownloadManager.Request.VISIBILITY_VISIBLE; 766 767 /** 768 * This download is visible and shows in the notifications while 769 * in progress and after completion. 770 */ 771 public static final int VISIBILITY_VISIBLE_NOTIFY_COMPLETED = 772 DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED; 773 774 /** 775 * This download doesn't show in the UI or in the notifications. 776 */ 777 public static final int VISIBILITY_HIDDEN = DownloadManager.Request.VISIBILITY_HIDDEN; 778 779 /** 780 * Constants related to HTTP request headers associated with each download. 781 */ 782 public static class RequestHeaders { 783 public static final String HEADERS_DB_TABLE = "request_headers"; 784 public static final String COLUMN_DOWNLOAD_ID = "download_id"; 785 public static final String COLUMN_HEADER = "header"; 786 public static final String COLUMN_VALUE = "value"; 787 788 /** 789 * Path segment to add to a download URI to retrieve request headers 790 */ 791 public static final String URI_SEGMENT = "headers"; 792 793 /** 794 * Prefix for ContentValues keys that contain HTTP header lines, to be passed to 795 * DownloadProvider.insert(). 796 */ 797 public static final String INSERT_KEY_PREFIX = "http_header_"; 798 } 799 } 800 801 /** 802 * Query where clause for general querying. 803 */ 804 private static final String QUERY_WHERE_CLAUSE = Impl.COLUMN_NOTIFICATION_PACKAGE + "=? AND " 805 + Impl.COLUMN_NOTIFICATION_CLASS + "=?"; 806 807 /** 808 * Delete all the downloads for a package/class pair. 809 */ 810 public static final void removeAllDownloadsByPackage( 811 Context context, String notification_package, String notification_class) { 812 context.getContentResolver().delete(Impl.CONTENT_URI, QUERY_WHERE_CLAUSE, 813 new String[] { notification_package, notification_class }); 814 } 815 } 816
