Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

Android™ Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Android™) SSL Server Example

Demonstrates how to create an SSL socket for accepting connections. This example is *very* simple in that it will create an SSL socket for accepting a single connection. It will read a message from the client, send a reply, and exit.

Chilkat Android™ Downloads

Android™ Java Libraries

Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkSocket listenSslSocket = new CkSocket();

    // An SSL server needs a digital certificate.  This example loads it from a PFX file.

    // Create an instance of a certificate store object, load a PFX file,
    // locate the certificate we need, and use it.
    // (a PFX file may contain more than one certificate.)
    CkCertStore certStore = new CkCertStore();
    // The 1st argument is the filename, the 2nd arg is the 
    // PFX file's password:
    boolean success = certStore.LoadPfxFile("chilkat.pfx","test");
    if (success != true) {
        Log.i(TAG, certStore.lastErrorText());
        return;
        }

    // Find the certificate to be used for SSL:
    CkCert cert;
    cert = certStore.FindCertBySubject("Chilkat Software, Inc.");
    if (certStore.get_LastMethodSuccess() == false) {
        Log.i(TAG, certStore.lastErrorText());
        return;
        }

    // Use the certificate:
    success = listenSslSocket.InitSslServer(cert);
    if (success != true) {

        Log.i(TAG, listenSslSocket.lastErrorText());
        return;
        }

    // Bind and listen on a port:
    int myPort = 8123;
    // Allow for a max of 5 queued connect requests.
    int backLog = 5;
    success = listenSslSocket.BindAndListen(myPort,backLog);
    if (success != true) {
        Log.i(TAG, listenSslSocket.lastErrorText());
        return;
        }

    // If accepting an SSL/TLS connection, the SSL handshake is part of the connection
    // establishment process. This involves a few back-and-forth messages between the 
    // client and server to establish algorithms and a shared key to create the secure 
    // channel. The sending and receiving of these messages are governed by the 
    // MaxReadIdleMs and MaxSendIdleMs properties. If these properties are set to 0 
    // (and this is the default unless changed by your application), then the 
    // AcceptNextConnection can hang indefinitely during the SSL handshake process. 
    // Make sure these properties are set to appropriate values before calling AcceptNextConnection.

    // Set a 10 second max for waiting to read/write.  This is for the SSL/TLS handshake establishment.
    listenSslSocket.put_MaxReadIdleMs(10000);
    listenSslSocket.put_MaxSendIdleMs(10000);

    // Accept a single client connection and establish the secure SSL/TLS channel:
    CkSocket clientSock;
    int maxWaitMillisec = 20000;
    clientSock = listenSslSocket.AcceptNextConnection(maxWaitMillisec);
    if (listenSslSocket.get_LastMethodSuccess() == false) {
        Log.i(TAG, listenSslSocket.lastErrorText());
        return;
        }

    // The client (in this example) is going to send a "Hello Server! -EOM-" 
    // message.  Read it:
    String receivedMsg = clientSock.receiveUntilMatch("-EOM-");
    if (clientSock.get_LastMethodSuccess() != true) {
        Log.i(TAG, clientSock.lastErrorText());
        return;
        }

    Log.i(TAG, receivedMsg);

    // Send a "Hello Client! -EOM-" message:
    success = clientSock.SendString("Hello Client! -EOM-");
    if (success != true) {
        Log.i(TAG, clientSock.lastErrorText());
        return;
        }

    // Close the connection with the client
    // Wait a max of 20 seconds (20000 millsec)
    success = clientSock.Close(20000);


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}

 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.