Specifying proxyUser and proxyPassword thru proxy server Microsoft Azure Storage SDK for Java

Question

Connecting to Azure storage account thru proxy server Microsoft Azure Storage SDK for Java tells me how to specify proxyHost and Port using OperationContext.

I still cannot figure out how to specify the proxyUser and proxyPassword attributes.

I get a StorageException encountered: The server encountered an unknown failure: when I try the following code:

Authenticator.setDefault(
           new Authenticator() {
              public PasswordAuthentication getPasswordAuthentication() {
                 return new PasswordAuthentication(
                       authUser, authPassword.toCharArray());
              }
           }
        );

        System.setProperty("http.proxyHost", proxyHost);
        System.setProperty("http.proxyPort", proxyPort);



        System.setProperty("https.proxyHost", proxyHost);
        System.setProperty("https.proxyPort", proxyPort);



    System.setProperty("http.proxyUser", authUser);
    System.setProperty("http.proxyPassword", authPassword);

    System.setProperty("https.proxyUser", authUser);
    System.setProperty("https.proxyPassword", authPassword);



    try {
        CloudStorageAccount account = CloudStorageAccount.parse(storageConnectionString);   
        CloudBlobClient serviceClient = account.createCloudBlobClient();     
         CloudBlobContainer container = serviceClient.getContainerReference(resourcePrefix);
        container.createIfNotExists(null, op);
        CloudBlockBlob blob = container.getBlockBlobReference(resourceName);
        File sourceFile = new File(resourceName);
        blob.upload(new FileInputStream(sourceFile), sourceFile.length());
    }
    catch (FileNotFoundException fileNotFoundException) {
        System.out.print("FileNotFoundException encountered: ");
        System.out.println(fileNotFoundException.getMessage());
        System.exit(-1);
    }
    catch (StorageException storageException) {
        System.out.print("StorageException encountered: ");
        System.out.println(storageException.getMessage());
        System.exit(-1);
    }
    catch (Exception e) {
        System.out.print("Exception encountered: ");
        System.out.println(e.getMessage());
        System.exit(-1);
    }

Answer 1

To by pass the proxy then please use like below, it works as expected and same has been tested.

public class AzureUpload {

    // Define the connection-string with your values
    /*public static final String storageConnectionString =
        "DefaultEndpointsProtocol=http;" +
        "AccountName=your_storage_account;" +
        "AccountKey=your_storage_account_key";*/
    public static final String storageConnectionString =
            "DefaultEndpointsProtocol=http;" +
            "AccountName=test2rdrhgf62;" +
            "AccountKey=1gy3lpE7Du1j5ljKiupjhgjghjcbfgTGhbntjnRfr9Yi6GUQqVMQqGxd7/YThisv/OVVLfIOv9kQ==";

    // Define the path to a local file.
    static final String filePath = "D:\\Project\\Supporting Files\\Jar's\\Azure\\azure-storage-1.2.0.jar";
    static final String file_Path = "D:\\Project\\Healthcare\\Azcopy_To_Azure\\data";

    public static void main(String[] args) {
        try
        {
            // Retrieve storage account from connection-string.
            //String storageConnectionString = RoleEnvironment.getConfigurationSettings().get("StorageConnectionString");
            //Proxy httpProxy = new Proxy(Proxy.Type.HTTP,new InetSocketAddress("132.186.192.234",8080));
            System.setProperty("http.proxyHost", "102.122.15.234");
            System.setProperty("http.proxyPort", "80");
            System.setProperty("https.proxyUser", "ad001\\empid001");
            System.setProperty("https.proxyPassword", "pass!1");
            // Retrieve storage account from connection-string.
            CloudStorageAccount storageAccount = CloudStorageAccount.parse(storageConnectionString);

            // Create the blob client.
            CloudBlobClient blobClient = storageAccount.createCloudBlobClient();


            // Get a reference to a container.
            // The container name must be lower case
            CloudBlobContainer container = blobClient.getContainerReference("rpmsdatafromhospital");

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

            // Create a permissions object.
            BlobContainerPermissions containerPermissions = new BlobContainerPermissions();

            // Include public access in the permissions object.
            containerPermissions.setPublicAccess(BlobContainerPublicAccessType.CONTAINER);

            // Set the permissions on the container.
            container.uploadPermissions(containerPermissions);

            // Create or overwrite the new file to blob with contents from a local file.
            /*CloudBlockBlob blob = container.getBlockBlobReference("azure-storage-1.2.0.jar");
            File source = new File(filePath);
            blob.upload(new FileInputStream(source), source.length());*/

            String envFilePath = System.getenv("AZURE_FILE_PATH");

            //upload list of files/directory to blob storage
            File folder = new File(envFilePath);
            File[] listOfFiles = folder.listFiles();

            for (int i = 0; i < listOfFiles.length; i++) {
              if (listOfFiles[i].isFile()) {
                System.out.println("File " + listOfFiles[i].getName());

                CloudBlockBlob blob = container.getBlockBlobReference(listOfFiles[i].getName());
                File source = new File(envFilePath+"\\"+listOfFiles[i].getName());
                blob.upload(new FileInputStream(source), source.length());
                System.out.println("File " + listOfFiles[i].getName()+ " upload successful");

              }
              //directory upload
              /*else if (listOfFiles[i].isDirectory()) {
                System.out.println("Directory " + listOfFiles[i].getName());

                CloudBlockBlob blob = container.getBlockBlobReference(listOfFiles[i].getName());
                File source = new File(file_Path+"\\"+listOfFiles[i].getName());
                blob.upload(new FileInputStream(source), source.length());
              }*/
            }

        }catch (Exception e)
        {
            // Output the stack trace.
            e.printStackTrace();
        }
    }
}

.Net or C# then please add below code to "App.config"

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
    </startup>

    <system.net> 
     <defaultProxy enabled="true" useDefaultCredentials="true"> 
       <proxy usesystemdefault="true" /> 
     </defaultProxy>
    </system.net>

</configuration>

Answer 2

1. You can specify a proxy for the JDK. This will apply to all Java HTTP requests and is what most folks want. System.setProperty(string, string) allows you to set host, port, user and password.

2. You can specify a Proxy for the library. Take a look at OperationContext for the proxy setting. Unfortunately Proxy itself does not support username and password so this is not an option via this method. This is a Java limitation. In our next release we will support a library-wide flag for this rather than requiring proxy be sent with each request.