private void showChooseDataFolderDialog() {
   Context context = ui.getActivity();
   File dataFolder = UserPreferences.getDataFolder(null);
   if (dataFolder == null) {
     new MaterialDialog.Builder(ui.getActivity())
         .title(R.string.error_label)
         .content(R.string.external_storage_error_msg)
         .neutralText(android.R.string.ok)
         .show();
     return;
   }
   String dataFolderPath = dataFolder.getAbsolutePath();
   int selectedIndex = -1;
   File[] mediaDirs = ContextCompat.getExternalFilesDirs(context, null);
   List<String> folders = new ArrayList<>(mediaDirs.length);
   List<CharSequence> choices = new ArrayList<>(mediaDirs.length);
   for (int i = 0; i < mediaDirs.length; i++) {
     File dir = mediaDirs[i];
     if (dir == null || !dir.exists() || !dir.canRead() || !dir.canWrite()) {
       continue;
     }
     String path = mediaDirs[i].getAbsolutePath();
     folders.add(path);
     if (dataFolderPath.equals(path)) {
       selectedIndex = i;
     }
     int index = path.indexOf("Android");
     String choice;
     if (index >= 0) {
       choice = path.substring(0, index);
     } else {
       choice = path;
     }
     long bytes = StorageUtils.getFreeSpaceAvailable(path);
     String freeSpace =
         String.format(
             context.getString(R.string.free_space_label), Converter.byteToString(bytes));
     choices.add(
         Html.fromHtml("<html><small>" + choice + " [" + freeSpace + "]" + "</small></html>"));
   }
   if (choices.size() == 0) {
     new MaterialDialog.Builder(ui.getActivity())
         .title(R.string.error_label)
         .content(R.string.external_storage_error_msg)
         .neutralText(android.R.string.ok)
         .show();
     return;
   }
   MaterialDialog dialog =
       new MaterialDialog.Builder(ui.getActivity())
           .title(R.string.choose_data_directory)
           .content(R.string.choose_data_directory_message)
           .items(choices.toArray(new CharSequence[choices.size()]))
           .itemsCallbackSingleChoice(
               selectedIndex,
               (dialog1, itemView, which, text) -> {
                 String folder = folders.get(which);
                 Log.d(TAG, "data folder: " + folder);
                 UserPreferences.setDataFolder(folder);
                 setDataFolderText();
                 return true;
               })
           .negativeText(R.string.cancel_label)
           .cancelable(true)
           .build();
   dialog.show();
 }
示例#2
0
  @Override
  protected void download() {
    File destination = new File(request.getDestination());
    final boolean fileExists = destination.exists();

    if (request.isDeleteOnFailure() && fileExists) {
      Log.w(TAG, "File already exists");
      if (request.getFeedfileType() != FeedImage.FEEDFILETYPE_FEEDIMAGE) {
        onFail(DownloadError.ERROR_FILE_EXISTS, null);
        return;
      } else {
        onSuccess();
        return;
      }
    }

    OkHttpClient httpClient = AntennapodHttpClient.getHttpClient();
    RandomAccessFile out = null;
    InputStream connection;
    ResponseBody responseBody = null;

    try {
      final URI uri = URIUtil.getURIFromRequestUrl(request.getSource());
      Request.Builder httpReq =
          new Request.Builder().url(uri.toURL()).header("User-Agent", ClientConfig.USER_AGENT);
      if (request.getIfModifiedSince() > 0) {
        long threeDaysAgo = System.currentTimeMillis() - 1000 * 60 * 60 * 24 * 3;
        if (request.getIfModifiedSince() > threeDaysAgo) {
          Date date = new Date(request.getIfModifiedSince());
          String httpDate = HttpDate.format(date);
          Log.d(TAG, "addHeader(\"If-Modified-Since\", \"" + httpDate + "\")");
          httpReq.addHeader("If-Modified-Since", httpDate);
        }
      }

      // add authentication information
      String userInfo = uri.getUserInfo();
      if (userInfo != null) {
        String[] parts = userInfo.split(":");
        if (parts.length == 2) {
          String credentials = encodeCredentials(parts[0], parts[1], "ISO-8859-1");
          httpReq.header("Authorization", credentials);
        }
      } else if (!StringUtils.isEmpty(request.getUsername()) && request.getPassword() != null) {
        String credentials =
            encodeCredentials(request.getUsername(), request.getPassword(), "ISO-8859-1");
        httpReq.header("Authorization", credentials);
      }

      // add range header if necessary
      if (fileExists) {
        request.setSoFar(destination.length());
        httpReq.addHeader("Range", "bytes=" + request.getSoFar() + "-");
        Log.d(TAG, "Adding range header: " + request.getSoFar());
      }

      Response response = null;
      try {
        response = httpClient.newCall(httpReq.build()).execute();
      } catch (IOException e) {
        Log.e(TAG, e.toString());
        if (e.getMessage().contains("PROTOCOL_ERROR")) {
          httpClient.setProtocols(Arrays.asList(Protocol.HTTP_1_1));
          response = httpClient.newCall(httpReq.build()).execute();
        } else {
          throw e;
        }
      }
      responseBody = response.body();
      String contentEncodingHeader = response.header("Content-Encoding");
      boolean isGzip = StringUtils.equalsIgnoreCase(contentEncodingHeader, "gzip");

      Log.d(TAG, "Response code is " + response.code());

      if (!response.isSuccessful() && response.code() == HttpURLConnection.HTTP_UNAUTHORIZED) {
        Log.d(TAG, "Authorization failed, re-trying with UTF-8 encoding");
        if (userInfo != null) {
          String[] parts = userInfo.split(":");
          if (parts.length == 2) {
            String credentials = encodeCredentials(parts[0], parts[1], "UTF-8");
            httpReq.header("Authorization", credentials);
          }
        } else if (!StringUtils.isEmpty(request.getUsername()) && request.getPassword() != null) {
          String credentials =
              encodeCredentials(request.getUsername(), request.getPassword(), "UTF-8");
          httpReq.header("Authorization", credentials);
        }
        response = httpClient.newCall(httpReq.build()).execute();
        responseBody = response.body();
        contentEncodingHeader = response.header("Content-Encoding");
        isGzip = StringUtils.equalsIgnoreCase(contentEncodingHeader, "gzip");
      }

      if (!response.isSuccessful() && response.code() == HttpURLConnection.HTTP_NOT_MODIFIED) {
        Log.d(
            TAG,
            "Feed '" + request.getSource() + "' not modified since last update, Download canceled");
        onCancelled();
        return;
      }

      if (!response.isSuccessful() || response.body() == null) {
        final DownloadError error;
        final String details;
        if (response.code() == HttpURLConnection.HTTP_UNAUTHORIZED) {
          error = DownloadError.ERROR_UNAUTHORIZED;
          details = String.valueOf(response.code());
        } else {
          error = DownloadError.ERROR_HTTP_DATA_ERROR;
          details = String.valueOf(response.code());
        }
        onFail(error, details);
        return;
      }

      if (!StorageUtils.storageAvailable(
          ClientConfig.applicationCallbacks.getApplicationInstance())) {
        onFail(DownloadError.ERROR_DEVICE_NOT_FOUND, null);
        return;
      }

      connection = new BufferedInputStream(responseBody.byteStream());

      String contentRangeHeader = (fileExists) ? response.header("Content-Range") : null;

      if (fileExists
          && response.code() == HttpStatus.SC_PARTIAL_CONTENT
          && !StringUtils.isEmpty(contentRangeHeader)) {
        String start =
            contentRangeHeader.substring("bytes ".length(), contentRangeHeader.indexOf("-"));
        request.setSoFar(Long.valueOf(start));
        Log.d(TAG, "Starting download at position " + request.getSoFar());

        out = new RandomAccessFile(destination, "rw");
        out.seek(request.getSoFar());
      } else {
        destination.delete();
        destination.createNewFile();
        out = new RandomAccessFile(destination, "rw");
      }

      byte[] buffer = new byte[BUFFER_SIZE];
      int count = 0;
      request.setStatusMsg(R.string.download_running);
      Log.d(TAG, "Getting size of download");
      request.setSize(responseBody.contentLength() + request.getSoFar());
      Log.d(TAG, "Size is " + request.getSize());
      if (request.getSize() < 0) {
        request.setSize(DownloadStatus.SIZE_UNKNOWN);
      }

      long freeSpace = StorageUtils.getFreeSpaceAvailable();
      Log.d(TAG, "Free space is " + freeSpace);

      if (request.getSize() != DownloadStatus.SIZE_UNKNOWN && request.getSize() > freeSpace) {
        onFail(DownloadError.ERROR_NOT_ENOUGH_SPACE, null);
        return;
      }

      Log.d(TAG, "Starting download");
      try {
        while (!cancelled && (count = connection.read(buffer)) != -1) {
          out.write(buffer, 0, count);
          request.setSoFar(request.getSoFar() + count);
          request.setProgressPercent(
              (int) (((double) request.getSoFar() / (double) request.getSize()) * 100));
        }
      } catch (IOException e) {
        Log.e(TAG, Log.getStackTraceString(e));
      }
      if (cancelled) {
        onCancelled();
      } else {
        // check if size specified in the response header is the same as the size of the
        // written file. This check cannot be made if compression was used
        if (!isGzip
            && request.getSize() != DownloadStatus.SIZE_UNKNOWN
            && request.getSoFar() != request.getSize()) {
          onFail(
              DownloadError.ERROR_IO_ERROR,
              "Download completed but size: "
                  + request.getSoFar()
                  + " does not equal expected size "
                  + request.getSize());
          return;
        } else if (request.getSize() > 0 && request.getSoFar() == 0) {
          onFail(DownloadError.ERROR_IO_ERROR, "Download completed, but nothing was read");
          return;
        }
        onSuccess();
      }

    } catch (IllegalArgumentException e) {
      e.printStackTrace();
      onFail(DownloadError.ERROR_MALFORMED_URL, e.getMessage());
    } catch (SocketTimeoutException e) {
      e.printStackTrace();
      onFail(DownloadError.ERROR_CONNECTION_ERROR, e.getMessage());
    } catch (UnknownHostException e) {
      e.printStackTrace();
      onFail(DownloadError.ERROR_UNKNOWN_HOST, e.getMessage());
    } catch (IOException e) {
      e.printStackTrace();
      onFail(DownloadError.ERROR_IO_ERROR, e.getMessage());
    } catch (NullPointerException e) {
      // might be thrown by connection.getInputStream()
      e.printStackTrace();
      onFail(DownloadError.ERROR_CONNECTION_ERROR, request.getSource());
    } finally {
      IOUtils.closeQuietly(out);
      AntennapodHttpClient.cleanup();
      IOUtils.closeQuietly(responseBody);
    }
  }