snappymail/dev/Stores/User/Pgp.js

(function () {

	'use strict';

//	var
//		window = require('window')
//	;

	/**
	 * @constructor
	 */
	function PgpUserStore()
	{
		this.openpgp = null;
		this.keyring = [];
	}

	PgpUserStore.prototype.sign = function (sText, oPrivateKey)
	{
		try
		{
			return this.openpgp.signClearMessage([oPrivateKey], sText);
		}
		catch (oExc) {}

		return sText;
	};

	PgpUserStore.prototype.encrypt = function (sText, aPublicKeys)
	{
		try
		{
			return this.openpgp.encryptMessage(aPublicKeys, sText);
		}
		catch (oExc) {}

		return sText;
	};

	PgpUserStore.prototype.signAndEncrypt = function (sText, aPublicKeys, oPrivateKey)
	{
		try
		{
			return this.openpgp.signAndEncryptMessage(aPublicKeys, oPrivateKey, sText);
		}
		catch (oExc) {}

		return sText;
	};

	/**/

	PgpUserStore.prototype.verify = function (sText, aPublicKeys)
	{
		var
			mPgpMessage = null
		;

		try
		{
			mPgpMessage = this.openpgp.cleartext.readArmored(sText);
			if (mPgpMessage && mPgpMessage.getText)
			{
				mPgpMessage.verify(aPublicKeys);
			}
		}
		catch (oExc) {}

		return false;
	};

	PgpUserStore.prototype.decryptAndVerify = function (sEnctyptedText, aPublicKeys, oPivateKey)
	{
		var
			mPgpMessageDecrypted = null,
			mPgpMessage = null
		;

		try
		{
			mPgpMessage = this.openpgp.message.readArmored(sEnctyptedText);
			if (mPgpMessage && oPivateKey && mPgpMessage.decrypt)
			{
				mPgpMessageDecrypted = mPgpMessage.decrypt(oPivateKey);
				if (mPgpMessageDecrypted)
				{
					mPgpMessageDecrypted.verify(aPublicKeys);
				}
			}
		}
		catch (oExc) {}

		return false;
	};

	/**
	 * @return {boolean}
	 */
	PgpUserStore.prototype.isSupported = function ()
	{
		return !!this.openpgp;
	};

	module.exports = new PgpUserStore();

}());