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(Android™) SMTP Login SecureDemonstrates how to set the SMTP password using a secure string. This example requires Chilkat v9.5.0.71 or greater.
// 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. CkMailMan mailman = new CkMailMan(); boolean success; // Imagine we've previously saved our encrypted login and password within a JSON config file // that contains this: // { // "smtp_login": "D7lnlWY291LKMeChlvQq7N/Tg7ieuSB15a+9Ekyd0R4=", // "smtp_password": "5neIq9Jmn0E3p71N6Yc8TA==" // } CkJsonObject json = new CkJsonObject(); json.LoadFile("qa_data/passwords/smtp.json"); CkCrypt2 crypt = new CkCrypt2(); // These are the encryption settings we previously used to encrypt the credentials within the JSON config file. crypt.put_CryptAlgorithm("aes"); crypt.put_CipherMode("cbc"); crypt.put_KeyLength(128); crypt.SetEncodedKey("000102030405060708090A0B0C0D0E0F","hex"); crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex"); crypt.put_EncodingMode("base64"); CkSecureString ssLogin = new CkSecureString(); CkSecureString ssPassword = new CkSecureString(); // Decrypt to the secure string. (the strings will still held in memory encrypted, but are now encrypted using // a randomly generated session key.) crypt.DecryptSecureENC(json.stringOf("smtp_login"),ssLogin); crypt.DecryptSecureENC(json.stringOf("smtp_password"),ssPassword); // Set the SMTP domain, login, and password mailman.put_SmtpHost("smtp.gmail.com"); mailman.put_SmtpSsl(true); mailman.put_SmtpPort(465); mailman.put_SmtpUsername(ssLogin.access()); // Set the SmtpPassword property via the SetPassword method using the secure string. mailman.SetPassword("smtp",ssPassword); // Connect and authenticate.. success = mailman.SmtpConnect(); if (success != true) { Log.i(TAG, mailman.lastErrorText()); return; } success = mailman.SmtpAuthenticate(); if (success != true) { Log.i(TAG, mailman.lastErrorText()); return; } Log.i(TAG, "SMTP login successful."); // ... mailman.CloseSmtpConnection(); } 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." } } |
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