diff options
Diffstat (limited to 'src/de/danoeh/antennapod/storage/DownloadRequester.java')
| -rw-r--r-- | src/de/danoeh/antennapod/storage/DownloadRequester.java | 566 |
1 files changed, 295 insertions, 271 deletions
diff --git a/src/de/danoeh/antennapod/storage/DownloadRequester.java b/src/de/danoeh/antennapod/storage/DownloadRequester.java index 29bd764dd..246b8bdfd 100644 --- a/src/de/danoeh/antennapod/storage/DownloadRequester.java +++ b/src/de/danoeh/antennapod/storage/DownloadRequester.java @@ -5,6 +5,7 @@ import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import org.apache.commons.io.FilenameUtils; +import org.apache.commons.lang3.StringUtils; import android.content.Context; import android.content.Intent; @@ -17,280 +18,303 @@ import de.danoeh.antennapod.feed.FeedFile; import de.danoeh.antennapod.feed.FeedImage; import de.danoeh.antennapod.feed.FeedMedia; import de.danoeh.antennapod.preferences.UserPreferences; +import de.danoeh.antennapod.service.download.DownloadRequest; import de.danoeh.antennapod.service.download.DownloadService; import de.danoeh.antennapod.util.FileNameGenerator; import de.danoeh.antennapod.util.URLChecker; public class DownloadRequester { - private static final String TAG = "DownloadRequester"; - - public static String IMAGE_DOWNLOADPATH = "images/"; - public static String FEED_DOWNLOADPATH = "cache/"; - public static String MEDIA_DOWNLOADPATH = "media/"; - - private static DownloadRequester downloader; - - Map<String, FeedFile> downloads; - - private DownloadRequester() { - downloads = new ConcurrentHashMap<String, FeedFile>(); - } - - public static DownloadRequester getInstance() { - if (downloader == null) { - downloader = new DownloadRequester(); - } - return downloader; - } - - private void download(Context context, FeedFile item, File dest, - boolean overwriteIfExists) { - if (!isDownloadingFile(item)) { - if (!isFilenameAvailable(dest.toString()) || dest.exists()) { - if (AppConfig.DEBUG) - Log.d(TAG, "Filename already used."); - if (isFilenameAvailable(dest.toString()) && overwriteIfExists) { - boolean result = dest.delete(); - if (AppConfig.DEBUG) - Log.d(TAG, "Deleting file. Result: " + result); - } else { - // find different name - File newDest = null; - for (int i = 1; i < Integer.MAX_VALUE; i++) { - String newName = FilenameUtils.getBaseName(dest - .getName()) - + "-" - + i - + "." - + FilenameUtils.getExtension(dest.getName()); - if (AppConfig.DEBUG) - Log.d(TAG, "Testing filename " + newName); - newDest = new File(dest.getParent(), newName); - if (!newDest.exists() - && isFilenameAvailable(newDest.toString())) { - if (AppConfig.DEBUG) - Log.d(TAG, "File doesn't exist yet. Using " - + newName); - break; - } - } - if (newDest != null) { - dest = newDest; - } - } - } - if (AppConfig.DEBUG) - Log.d(TAG, - "Requesting download of url " + item.getDownload_url()); - item.setDownload_url(URLChecker.prepareURL(item.getDownload_url())); - item.setFile_url(dest.toString()); - downloads.put(item.getDownload_url(), item); - - DownloadService.Request request = new DownloadService.Request( - item.getFile_url(), item.getDownload_url()); - - if (!DownloadService.isRunning) { - Intent launchIntent = new Intent(context, DownloadService.class); - launchIntent.putExtra(DownloadService.EXTRA_REQUEST, request); - context.startService(launchIntent); - } else { - Intent queueIntent = new Intent( - DownloadService.ACTION_ENQUEUE_DOWNLOAD); - queueIntent.putExtra(DownloadService.EXTRA_REQUEST, request); - context.sendBroadcast(queueIntent); - } - EventDistributor.getInstance().sendDownloadQueuedBroadcast(); - } else { - Log.e(TAG, "URL " + item.getDownload_url() - + " is already being downloaded"); - } - } - - /** - * Returns true if a filename is available and false if it has already been - * taken by another requested download. - */ - private boolean isFilenameAvailable(String path) { - for (String key : downloads.keySet()) { - FeedFile f = downloads.get(key); - if (f.getFile_url() != null && f.getFile_url().equals(path)) { - if (AppConfig.DEBUG) - Log.d(TAG, path - + " is already used by another requested download"); - return false; - } - } - if (AppConfig.DEBUG) - Log.d(TAG, path + " is available as a download destination"); - return true; - } - - public void downloadFeed(Context context, Feed feed) - throws DownloadRequestException { - if (feedFileValid(feed)) { - download(context, feed, new File(getFeedfilePath(context), - getFeedfileName(feed)), true); - } - } - - public void downloadImage(Context context, FeedImage image) - throws DownloadRequestException { - if (feedFileValid(image)) { - download(context, image, new File(getImagefilePath(context), - getImagefileName(image)), true); - } - } - - public void downloadMedia(Context context, FeedMedia feedmedia) - throws DownloadRequestException { - if (feedFileValid(feedmedia)) { - download(context, feedmedia, - new File(getMediafilePath(context, feedmedia), - getMediafilename(feedmedia)), false); - } - } - - /** - * Throws a DownloadRequestException if the feedfile or the download url of - * the feedfile is null. - * - * @throws DownloadRequestException - */ - private boolean feedFileValid(FeedFile f) throws DownloadRequestException { - if (f == null) { - throw new DownloadRequestException("Feedfile was null"); - } else if (f.getDownload_url() == null) { - throw new DownloadRequestException("File has no download URL"); - } else { - return true; - } - } - - /** - * Cancels a running download. - * */ - public void cancelDownload(final Context context, final FeedFile f) { - cancelDownload(context, f.getDownload_url()); - } - - /** - * Cancels a running download. - * */ - public void cancelDownload(final Context context, final String downloadUrl) { - if (AppConfig.DEBUG) - Log.d(TAG, "Cancelling download with url " + downloadUrl); - Intent cancelIntent = new Intent(DownloadService.ACTION_CANCEL_DOWNLOAD); - cancelIntent.putExtra(DownloadService.EXTRA_DOWNLOAD_URL, downloadUrl); - context.sendBroadcast(cancelIntent); - } - - /** Cancels all running downloads */ - public void cancelAllDownloads(Context context) { - if (AppConfig.DEBUG) - Log.d(TAG, "Cancelling all running downloads"); - context.sendBroadcast(new Intent( - DownloadService.ACTION_CANCEL_ALL_DOWNLOADS)); - } - - /** Returns true if there is at least one Feed in the downloads queue. */ - public boolean isDownloadingFeeds() { - for (FeedFile f : downloads.values()) { - if (f.getClass() == Feed.class) { - return true; - } - } - return false; - } - - /** Checks if feedfile is in the downloads list */ - public boolean isDownloadingFile(FeedFile item) { - if (item.getDownload_url() != null) { - return downloads.containsKey(item.getDownload_url()); - } - return false; - } - - public FeedFile getDownload(String downloadUrl) { - return downloads.get(downloadUrl); - } - - /** Checks if feedfile with the given download url is in the downloads list */ - public boolean isDownloadingFile(String downloadUrl) { - return downloads.get(downloadUrl) != null; - } - - public boolean hasNoDownloads() { - return downloads.isEmpty(); - } - - public FeedFile getDownloadAt(int index) { - return downloads.get(index); - } - - /** Remove an object from the downloads-list of the requester. */ - public void removeDownload(FeedFile f) { - if (downloads.remove(f.getDownload_url()) == null) { - Log.e(TAG, - "Could not remove object with url " + f.getDownload_url()); - } - } - - /** Get the number of uncompleted Downloads */ - public int getNumberOfDownloads() { - return downloads.size(); - } - - public String getFeedfilePath(Context context) - throws DownloadRequestException { - return getExternalFilesDirOrThrowException(context, FEED_DOWNLOADPATH) - .toString() + "/"; - } - - public String getFeedfileName(Feed feed) { - String filename = feed.getDownload_url(); - if (feed.getTitle() != null && !feed.getTitle().isEmpty()) { - filename = feed.getTitle(); - } - return "feed-" + FileNameGenerator.generateFileName(filename); - } - - public String getImagefilePath(Context context) - throws DownloadRequestException { - return getExternalFilesDirOrThrowException(context, IMAGE_DOWNLOADPATH) - .toString() + "/"; - } - - public String getImagefileName(FeedImage image) { - String filename = image.getDownload_url(); - if (image.getFeed() != null && image.getFeed().getTitle() != null) { - filename = image.getFeed().getTitle(); - } - return "image-" + FileNameGenerator.generateFileName(filename); - } - - public String getMediafilePath(Context context, FeedMedia media) - throws DownloadRequestException { - File externalStorage = getExternalFilesDirOrThrowException( - context, - MEDIA_DOWNLOADPATH - + FileNameGenerator.generateFileName(media.getItem() - .getFeed().getTitle()) + "/"); - return externalStorage.toString(); - } - - private File getExternalFilesDirOrThrowException(Context context, - String type) throws DownloadRequestException { - File result = UserPreferences.getDataFolder(context, type); - if (result == null) { - throw new DownloadRequestException( - "Failed to access external storage"); - } - return result; - } - - public String getMediafilename(FeedMedia media) { - return URLUtil.guessFileName(media.getDownload_url(), null, - media.getMime_type()); - } - + private static final String TAG = "DownloadRequester"; + + public static String IMAGE_DOWNLOADPATH = "images/"; + public static String FEED_DOWNLOADPATH = "cache/"; + public static String MEDIA_DOWNLOADPATH = "media/"; + + private static DownloadRequester downloader; + + Map<String, DownloadRequest> downloads; + + private DownloadRequester() { + downloads = new ConcurrentHashMap<String, DownloadRequest>(); + } + + public static DownloadRequester getInstance() { + if (downloader == null) { + downloader = new DownloadRequester(); + } + return downloader; + } + + private void download(Context context, FeedFile item, File dest, + boolean overwriteIfExists) { + if (!isDownloadingFile(item)) { + if (!isFilenameAvailable(dest.toString()) || dest.exists()) { + if (AppConfig.DEBUG) + Log.d(TAG, "Filename already used."); + if (isFilenameAvailable(dest.toString()) && overwriteIfExists) { + boolean result = dest.delete(); + if (AppConfig.DEBUG) + Log.d(TAG, "Deleting file. Result: " + result); + } else { + // find different name + File newDest = null; + for (int i = 1; i < Integer.MAX_VALUE; i++) { + String newName = FilenameUtils.getBaseName(dest + .getName()) + + "-" + + i + + FilenameUtils.EXTENSION_SEPARATOR + + FilenameUtils.getExtension(dest.getName()); + if (AppConfig.DEBUG) + Log.d(TAG, "Testing filename " + newName); + newDest = new File(dest.getParent(), newName); + if (!newDest.exists() + && isFilenameAvailable(newDest.toString())) { + if (AppConfig.DEBUG) + Log.d(TAG, "File doesn't exist yet. Using " + + newName); + break; + } + } + if (newDest != null) { + dest = newDest; + } + } + } + if (AppConfig.DEBUG) + Log.d(TAG, + "Requesting download of url " + item.getDownload_url()); + item.setDownload_url(URLChecker.prepareURL(item.getDownload_url())); + + DownloadRequest request = new DownloadRequest(dest.toString(), + item.getDownload_url(), item.getHumanReadableIdentifier(), + item.getId(), item.getTypeAsInt()); + + downloads.put(request.getSource(), request); + + Intent launchIntent = new Intent(context, DownloadService.class); + launchIntent.putExtra(DownloadService.EXTRA_REQUEST, request); + context.startService(launchIntent); + EventDistributor.getInstance().sendDownloadQueuedBroadcast(); + } else { + Log.e(TAG, "URL " + item.getDownload_url() + + " is already being downloaded"); + } + } + + /** + * Returns true if a filename is available and false if it has already been + * taken by another requested download. + */ + private boolean isFilenameAvailable(String path) { + for (String key : downloads.keySet()) { + DownloadRequest r = downloads.get(key); + if (StringUtils.equals(r.getDestination(), path)) { + if (AppConfig.DEBUG) + Log.d(TAG, path + + " is already used by another requested download"); + return false; + } + } + if (AppConfig.DEBUG) + Log.d(TAG, path + " is available as a download destination"); + return true; + } + + public void downloadFeed(Context context, Feed feed) + throws DownloadRequestException { + if (feedFileValid(feed)) { + download(context, feed, new File(getFeedfilePath(context), + getFeedfileName(feed)), true); + } + } + + public void downloadImage(Context context, FeedImage image) + throws DownloadRequestException { + if (feedFileValid(image)) { + download(context, image, new File(getImagefilePath(context), + getImagefileName(image)), true); + } + } + + public void downloadMedia(Context context, FeedMedia feedmedia) + throws DownloadRequestException { + if (feedFileValid(feedmedia)) { + download(context, feedmedia, + new File(getMediafilePath(context, feedmedia), + getMediafilename(feedmedia)), false); + } + } + + /** + * Throws a DownloadRequestException if the feedfile or the download url of + * the feedfile is null. + * + * @throws DownloadRequestException + */ + private boolean feedFileValid(FeedFile f) throws DownloadRequestException { + if (f == null) { + throw new DownloadRequestException("Feedfile was null"); + } else if (f.getDownload_url() == null) { + throw new DownloadRequestException("File has no download URL"); + } else { + return true; + } + } + + /** + * Cancels a running download. + */ + public void cancelDownload(final Context context, final FeedFile f) { + cancelDownload(context, f.getDownload_url()); + } + + /** + * Cancels a running download. + */ + public void cancelDownload(final Context context, final String downloadUrl) { + if (AppConfig.DEBUG) + Log.d(TAG, "Cancelling download with url " + downloadUrl); + Intent cancelIntent = new Intent(DownloadService.ACTION_CANCEL_DOWNLOAD); + cancelIntent.putExtra(DownloadService.EXTRA_DOWNLOAD_URL, downloadUrl); + context.sendBroadcast(cancelIntent); + } + + /** + * Cancels all running downloads + */ + public void cancelAllDownloads(Context context) { + if (AppConfig.DEBUG) + Log.d(TAG, "Cancelling all running downloads"); + context.sendBroadcast(new Intent( + DownloadService.ACTION_CANCEL_ALL_DOWNLOADS)); + } + + /** + * Returns true if there is at least one Feed in the downloads queue. + */ + public boolean isDownloadingFeeds() { + for (DownloadRequest r : downloads.values()) { + if (r.getFeedfileType() == Feed.FEEDFILETYPE_FEED) { + return true; + } + } + return false; + } + + /** + * Checks if feedfile is in the downloads list + */ + public boolean isDownloadingFile(FeedFile item) { + if (item.getDownload_url() != null) { + return downloads.containsKey(item.getDownload_url()); + } + return false; + } + + public DownloadRequest getDownload(String downloadUrl) { + return downloads.get(downloadUrl); + } + + /** + * Checks if feedfile with the given download url is in the downloads list + */ + public boolean isDownloadingFile(String downloadUrl) { + return downloads.get(downloadUrl) != null; + } + + public boolean hasNoDownloads() { + return downloads.isEmpty(); + } + + /** + * Remove an object from the downloads-list of the requester. + */ + public void removeDownload(DownloadRequest r) { + if (downloads.remove(r.getSource()) == null) { + Log.e(TAG, + "Could not remove object with url " + r.getSource()); + } + } + + /** + * Get the number of uncompleted Downloads + */ + public int getNumberOfDownloads() { + return downloads.size(); + } + + public String getFeedfilePath(Context context) + throws DownloadRequestException { + return getExternalFilesDirOrThrowException(context, FEED_DOWNLOADPATH) + .toString() + "/"; + } + + public String getFeedfileName(Feed feed) { + String filename = feed.getDownload_url(); + if (feed.getTitle() != null && !feed.getTitle().isEmpty()) { + filename = feed.getTitle(); + } + return "feed-" + FileNameGenerator.generateFileName(filename); + } + + public String getImagefilePath(Context context) + throws DownloadRequestException { + return getExternalFilesDirOrThrowException(context, IMAGE_DOWNLOADPATH) + .toString() + "/"; + } + + public String getImagefileName(FeedImage image) { + String filename = image.getDownload_url(); + if (image.getFeed() != null && image.getFeed().getTitle() != null) { + filename = image.getFeed().getTitle(); + } + return "image-" + FileNameGenerator.generateFileName(filename); + } + + public String getMediafilePath(Context context, FeedMedia media) + throws DownloadRequestException { + File externalStorage = getExternalFilesDirOrThrowException( + context, + MEDIA_DOWNLOADPATH + + FileNameGenerator.generateFileName(media.getItem() + .getFeed().getTitle()) + "/"); + return externalStorage.toString(); + } + + private File getExternalFilesDirOrThrowException(Context context, + String type) throws DownloadRequestException { + File result = UserPreferences.getDataFolder(context, type); + if (result == null) { + throw new DownloadRequestException( + "Failed to access external storage"); + } + return result; + } + + public String getMediafilename(FeedMedia media) { + String filename; + String titleBaseFilename = ""; + + // Try to generate the filename by the item title + if (media.getItem() != null && media.getItem().getTitle() != null) { + String title = media.getItem().getTitle(); + // Delete reserved characters + titleBaseFilename = title.replaceAll("[\\\\/%\\?\\*:|<>\"\\p{Cntrl}]", ""); + titleBaseFilename = titleBaseFilename.trim(); + } + + String URLBaseFilename = URLUtil.guessFileName(media.getDownload_url(), + null, media.getMime_type());; + + if (titleBaseFilename != "") { + // Append extension + filename = titleBaseFilename + FilenameUtils.EXTENSION_SEPARATOR + + FilenameUtils.getExtension(URLBaseFilename); + } else { + // Fall back on URL file name + filename = URLBaseFilename; + } + return filename; + } } |