.. java:import:: java.io DataInputStream

.. java:import:: java.io InputStreamReader

.. java:import:: java.io File

.. java:import:: java.io FileInputStream

.. java:import:: java.io FileNotFoundException

.. java:import:: java.io IOException

.. java:import:: java.security InvalidKeyException

.. java:import:: java.security KeyFactory

.. java:import:: java.security MessageDigest

.. java:import:: java.security NoSuchAlgorithmException

.. java:import:: java.security PrivateKey

.. java:import:: java.security Signature

.. java:import:: java.security SignatureException

.. java:import:: java.security.spec InvalidKeySpecException

.. java:import:: java.security.spec PKCS8EncodedKeySpec

.. java:import:: java.util Map

.. java:import:: java.util HashMap

.. java:import:: java.util Iterator

.. java:import:: io.netty.handler.codec.http QueryStringEncoder

.. java:import:: io.netty.handler.codec.http HttpHeaders

.. java:import:: org.apache.commons.codec.binary Base64

.. java:import:: org.bouncycastle.util.io.pem PemObject

.. java:import:: org.bouncycastle.util.io.pem PemReader

Utils
=====

.. java:package:: io.aalam.common
   :noindex:

.. java:type:: public class Utils

   Utility functions of this framework

Methods
-------
requestLocalServer
^^^^^^^^^^^^^^^^^^

.. java:method:: public static HttpResponse requestLocalServer(String method, String url, Map<String, String> params, String contentType, byte[] data, String scheme, String user)
   :outertype: Utils

   Send a signed request to other internal applications. If the application makes the request without using this method, those request will be seen as anonymous request by the receiving application.

   :param method: The HTTP method
   :param url: The URL path
   :param params: Key-Value map of url parmeters
   :param contentType: Type of the content to be sent with the request
   :param data: Data to be sent with the request
   :param scheme: URL scheme like http, https, http+unix, etc
   :param user: The email id of the user on whose behalf this request is sent.

requestLocalServer
^^^^^^^^^^^^^^^^^^

.. java:method:: public static HttpResponse requestLocalServer(String method, String url, Map<String, String> params, String contentType, byte[] data)
   :outertype: Utils

   Send a signed request to other internal applications. If the application makes the request without using this method, those request will be seen as anonymous request by the receiving application.

   :param method: The HTTP method
   :param url: The URL path
   :param params: Key-Value map of url parmeters
   :param contentType: Type of the content to be sent with the request
   :param data: Data to be sent with the request

requestLocalServer
^^^^^^^^^^^^^^^^^^

.. java:method:: public static HttpResponse requestLocalServer(String method, String url, Map<String, String> params)
   :outertype: Utils

   Send a signed request to other internal applications. If the application makes the request without using this method, those request will be seen as anonymous request by the receiving application.

   :param method: The HTTP method
   :param url: The URL path
   :param params: Key-Value map of url parmeters

signAndSend
^^^^^^^^^^^

.. java:method:: public static HttpResponse signAndSend(String prefix, String signatureKey, String method, String host, String path, Map<String, String> params, String contentType, byte[] data, String scheme)
   :outertype: Utils

   Send a signed request. Use requestLocalServer methods instead of this.

   :param prefix: The prefix for the signature. This will be identified as from() in the request.auth object of the receiver
   :param signatureKey: The header value in which the signature will be put in the response
   :param method: The HTTP method
   :param path: The URL path
   :param host: The host to send the request to. The host can verify the signature only if this app's public key is present in it.
   :param params: Key-Value map of url parmeters
   :param contentType: Type of the content to be sent with the request
   :param data: Data to be sent with the request
   :param scheme: URL scheme like http, https, http+unix, etc