com.microsoft.azure.storage.blob.SharedAccessBlobPolicy Java Examples

@Override
public URI createPlaybackUri(URI storagePath, Date ts) throws Exception {
   long startTime = System.nanoTime();

   try {
      String accountName = getAccountName(storagePath);
      CloudBlobClient client = accounts.get(accountName);
      if (client == null) {
         VIDEO_STORAGE_AZURE_BAD_ACCOUNT_NAME.inc();
         throw new Exception("unknown account name: " + accountName);
      }

      CloudBlockBlob blob = new CloudBlockBlob(storagePath, client);

      SharedAccessBlobHeaders headers = new SharedAccessBlobHeaders();
      headers.setContentType("video/mp2t");
      headers.setCacheControl("no-cache");

      Date start = new Date(ts.getTime() - accessDurationInMs);

      SharedAccessBlobPolicy policy = new SharedAccessBlobPolicy();
      policy.setPermissions(EnumSet.of(SharedAccessBlobPermissions.READ));
      policy.setSharedAccessStartTime(start);
      policy.setSharedAccessExpiryTime(ts);

      String sig = blob.generateSharedAccessSignature(policy, headers, null);
      String query = storagePath.getQuery();

      URI result;
      if (query != null && !query.isEmpty()) {
         result = URI.create(storagePath + "&" + sig);
      } else {
         result = URI.create(storagePath + "?" + sig);
      }

      VIDEO_STORAGE_AZURE_CREATE_PLAYBACK_URI_SUCCESS.update(System.nanoTime() - startTime, TimeUnit.NANOSECONDS);
      return result;
   } catch (Exception ex) {
      VIDEO_STORAGE_AZURE_CREATE_PLAYBACK_URI_FAIL.update(System.nanoTime() - startTime, TimeUnit.NANOSECONDS);
      throw ex;
   }
}
 

private SharedAccessBlobPolicy getPolicy(final int expiry) {
    final SharedAccessBlobPolicy policy = new SharedAccessBlobPolicy();
    policy.setSharedAccessExpiryTime(new Date(this.getExpiry(expiry)));
    policy.setPermissions(EnumSet.of(SharedAccessBlobPermissions.READ));
    return policy;
}
 

private static String generateSAS(CloudBlobContainer container,
    boolean readonly) throws Exception {

  // Create a container if it does not exist.
  container.createIfNotExists();

  // Create a new shared access policy.
  SharedAccessBlobPolicy sasPolicy = new SharedAccessBlobPolicy();

  // Create a UTC Gregorian calendar value.
  GregorianCalendar calendar = new GregorianCalendar(
      TimeZone.getTimeZone("UTC"));

  // Specify the current time as the start time for the shared access
  // signature.
  //
  calendar.setTime(new Date());
  sasPolicy.setSharedAccessStartTime(calendar.getTime());

  // Use the start time delta one hour as the end time for the shared
  // access signature.
  calendar.add(Calendar.HOUR, 10);
  sasPolicy.setSharedAccessExpiryTime(calendar.getTime());

  if (readonly) {
    // Set READ permissions
    sasPolicy.setPermissions(EnumSet.of(
        SharedAccessBlobPermissions.READ,
        SharedAccessBlobPermissions.LIST));
  } else {
    // Set READ and WRITE permissions.
    //
    sasPolicy.setPermissions(EnumSet.of(
        SharedAccessBlobPermissions.READ,
        SharedAccessBlobPermissions.WRITE,
        SharedAccessBlobPermissions.LIST));
  }

  // Create the container permissions.
  BlobContainerPermissions containerPermissions = new BlobContainerPermissions();

  // Turn public access to the container off.
  containerPermissions.setPublicAccess(BlobContainerPublicAccessType.OFF);

  container.uploadPermissions(containerPermissions);

  // Create a shared access signature for the container.
  String sas = container.generateSharedAccessSignature(sasPolicy, null);
  // HACK: when the just generated SAS is used straight away, we get an
  // authorization error intermittently. Sleeping for 1.5 seconds fixes that
  // on my box.
  Thread.sleep(1500);

  // Return to caller with the shared access signature.
  return sas;
}
 

public static void primePublicContainer(CloudBlobClient blobClient,
    String accountName, String containerName, String blobName, int fileSize)
    throws Exception {

  // Create a container if it does not exist. The container name
  // must be lower case.
  CloudBlobContainer container = blobClient
      .getContainerReference(containerName);

  container.createIfNotExists();

  // Create a new shared access policy.
  SharedAccessBlobPolicy sasPolicy = new SharedAccessBlobPolicy();

  // Set READ and WRITE permissions.
  //
  sasPolicy.setPermissions(EnumSet.of(
      SharedAccessBlobPermissions.READ,
      SharedAccessBlobPermissions.WRITE,
      SharedAccessBlobPermissions.LIST,
      SharedAccessBlobPermissions.DELETE));

  // Create the container permissions.
  BlobContainerPermissions containerPermissions = new BlobContainerPermissions();

  // Turn public access to the container off.
  containerPermissions
      .setPublicAccess(BlobContainerPublicAccessType.CONTAINER);

  // Set the policy using the values set above.
  containerPermissions.getSharedAccessPolicies().put("testwasbpolicy",
      sasPolicy);
  container.uploadPermissions(containerPermissions);

  // Create a blob output stream.
  CloudBlockBlob blob = container.getBlockBlobReference(blobName);
  BlobOutputStream outputStream = blob.openOutputStream();

  outputStream.write(new byte[fileSize]);
  outputStream.close();
}
 

private static String generateSAS(CloudBlobContainer container,
    boolean readonly) throws Exception {

  // Create a container if it does not exist.
  container.createIfNotExists();

  // Create a new shared access policy.
  SharedAccessBlobPolicy sasPolicy = new SharedAccessBlobPolicy();

  // Create a UTC Gregorian calendar value.
  GregorianCalendar calendar = new GregorianCalendar(
      TimeZone.getTimeZone("UTC"));

  // Specify the current time as the start time for the shared access
  // signature.
  //
  calendar.setTime(new Date());
  sasPolicy.setSharedAccessStartTime(calendar.getTime());

  // Use the start time delta one hour as the end time for the shared
  // access signature.
  calendar.add(Calendar.HOUR, 10);
  sasPolicy.setSharedAccessExpiryTime(calendar.getTime());

  if (readonly) {
    // Set READ permissions
    sasPolicy.setPermissions(EnumSet.of(
        SharedAccessBlobPermissions.READ,
        SharedAccessBlobPermissions.LIST));
  } else {
    // Set READ and WRITE permissions.
    //
    sasPolicy.setPermissions(EnumSet.of(
        SharedAccessBlobPermissions.READ,
        SharedAccessBlobPermissions.WRITE,
        SharedAccessBlobPermissions.LIST));
  }

  // Create the container permissions.
  BlobContainerPermissions containerPermissions = new BlobContainerPermissions();

  // Turn public access to the container off.
  containerPermissions.setPublicAccess(BlobContainerPublicAccessType.OFF);

  container.uploadPermissions(containerPermissions);

  // Create a shared access signature for the container.
  String sas = container.generateSharedAccessSignature(sasPolicy, null);
  // HACK: when the just generated SAS is used straight away, we get an
  // authorization error intermittently. Sleeping for 1.5 seconds fixes that
  // on my box.
  Thread.sleep(1500);

  // Return to caller with the shared access signature.
  return sas;
}
 

public static void primePublicContainer(CloudBlobClient blobClient,
    String accountName, String containerName, String blobName, int fileSize)
    throws Exception {

  // Create a container if it does not exist. The container name
  // must be lower case.
  CloudBlobContainer container = blobClient
      .getContainerReference(containerName);

  container.createIfNotExists();

  // Create a new shared access policy.
  SharedAccessBlobPolicy sasPolicy = new SharedAccessBlobPolicy();

  // Set READ and WRITE permissions.
  //
  sasPolicy.setPermissions(EnumSet.of(
      SharedAccessBlobPermissions.READ,
      SharedAccessBlobPermissions.WRITE,
      SharedAccessBlobPermissions.LIST,
      SharedAccessBlobPermissions.DELETE));

  // Create the container permissions.
  BlobContainerPermissions containerPermissions = new BlobContainerPermissions();

  // Turn public access to the container off.
  containerPermissions
      .setPublicAccess(BlobContainerPublicAccessType.CONTAINER);

  // Set the policy using the values set above.
  containerPermissions.getSharedAccessPolicies().put("testwasbpolicy",
      sasPolicy);
  container.uploadPermissions(containerPermissions);

  // Create a blob output stream.
  CloudBlockBlob blob = container.getBlockBlobReference(blobName);
  BlobOutputStream outputStream = blob.openOutputStream();

  outputStream.write(new byte[fileSize]);
  outputStream.close();
}
 

private CloudFile doCloudBlobCopy(CloudBlob source, int length) throws Exception {
    Calendar cal = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
    cal.setTime(new Date());
    cal.add(Calendar.MINUTE, 5);
    
    // Source SAS must have read permissions
    SharedAccessBlobPolicy policy = new SharedAccessBlobPolicy();
    policy.setPermissions(EnumSet.of(SharedAccessBlobPermissions.READ));
    policy.setSharedAccessExpiryTime(cal.getTime());

    String sasToken = source.generateSharedAccessSignature(policy, null, null);

    // Get destination reference
    final CloudFile destination = this.share.getRootDirectoryReference().getFileReference("destination");
    
    // Start copy and wait for completion
    StorageCredentialsSharedAccessSignature credentials = new StorageCredentialsSharedAccessSignature(sasToken);
    Constructor<? extends CloudBlob> blobType = source.getClass().getConstructor(URI.class);
    String copyId = destination.startCopy(blobType.newInstance(credentials.transformUri(source.getUri())));
    FileTestHelper.waitForCopy(destination);
    destination.downloadAttributes();
    
    // Check original file references for equality
    assertEquals(CopyStatus.SUCCESS, destination.getCopyState().getStatus());
    assertEquals(source.getServiceClient().getCredentials().transformUri(source.getUri()).getPath(),
            destination.getCopyState().getSource().getPath());
    assertEquals(length, destination.getCopyState().getTotalBytes().intValue());
    assertEquals(length, destination.getCopyState().getBytesCopied().intValue());
    assertEquals(copyId, destination.getProperties().getCopyState().getCopyId());

    // Attempt to abort the completed copy operation.
    try {
        destination.abortCopy(destination.getCopyState().getCopyId());
        FileTestHelper.waitForCopy(destination);
        fail();
    }
    catch (StorageException ex) {
        assertEquals(HttpURLConnection.HTTP_CONFLICT, ex.getHttpStatusCode());
    }

    assertNotNull(destination.getProperties().getEtag());
    assertFalse(source.getProperties().getEtag().equals(destination.getProperties().getEtag()));

    source.downloadAttributes();
    FileProperties prop1 = destination.getProperties();
    BlobProperties prop2 = source.getProperties();

    assertEquals(prop1.getCacheControl(), prop2.getCacheControl());
    assertEquals(prop1.getContentEncoding(), prop2.getContentEncoding());
    assertEquals(prop1.getContentLanguage(), prop2.getContentLanguage());
    assertEquals(prop1.getContentMD5(), prop2.getContentMD5());
    assertEquals(prop1.getContentType(), prop2.getContentType());

    assertEquals("value", destination.getMetadata().get("Test"));
    return destination;
}