IMP_Compose::_encryptMessage PHP Method

    protected function _encryptMessage(Horde_Mime_Part $msg, $encrypt, Horde_Mail_Rfc822_List $recip, Horde_Mail_Rfc822_Address $from)
    {
        global $injector;
        /* Add personal address to encrypted message. */
        switch ($encrypt) {
            case IMP_Pgp::ENCRYPT:
            case IMP_Pgp::SIGNENC:
            case IMP_Pgp::SYM_ENCRYPT:
            case IMP_Pgp::SYM_SIGNENC:
            case IMP_Smime::ENCRYPT:
            case IMP_Smime::SIGNENC:
                $recip2 = clone $recip;
                $recip2->add($from);
                break;
        }
        switch ($encrypt) {
            case IMP_Pgp::ENCRYPT:
            case IMP_Pgp::SIGN:
            case IMP_Pgp::SIGNENC:
            case IMP_Pgp::SYM_ENCRYPT:
            case IMP_Pgp::SYM_SIGNENC:
                if (!IMP_Pgp::enabled()) {
                    break;
                }
                $imp_pgp = $injector->getInstance('IMP_Pgp');
                switch ($encrypt) {
                    case IMP_Pgp::SIGN:
                    case IMP_Pgp::SIGNENC:
                    case IMP_Pgp::SYM_SIGNENC:
                        /* Check to see if we have the user's passphrase yet. */
                        $passphrase = $imp_pgp->getPassphrase('personal');
                        if (empty($passphrase)) {
                            $e = new IMP_Compose_Exception(_("PGP: Need passphrase for personal private key."));
                            $e->encrypt = 'pgp_passphrase_dialog';
                            throw $e;
                        }
                        break;
                    case IMP_Pgp::SYM_ENCRYPT:
                    case IMP_Pgp::SYM_SIGNENC:
                        /* Check to see if we have the user's symmetric passphrase
                         * yet. */
                        $symmetric_passphrase = $imp_pgp->getPassphrase('symmetric', 'imp_compose_' . $this->_cacheid);
                        if (empty($symmetric_passphrase)) {
                            $e = new IMP_Compose_Exception(_("PGP: Need passphrase to encrypt your message with."));
                            $e->encrypt = 'pgp_symmetric_passphrase_dialog';
                            throw $e;
                        }
                        break;
                }
                /* Do the encryption/signing requested. */
                try {
                    switch ($encrypt) {
                        case IMP_Pgp::SIGN:
                            $msg2 = $imp_pgp->signMimePart($msg);
                            $this->_setMetadata('encrypt_sign', true);
                            return $msg2;
                        case IMP_Pgp::ENCRYPT:
                        case IMP_Pgp::SYM_ENCRYPT:
                            return $imp_pgp->encryptMimePart($msg, $recip2, $encrypt == IMP_Pgp::SYM_ENCRYPT ? $symmetric_passphrase : null);
                        case IMP_Pgp::SIGNENC:
                        case IMP_Pgp::SYM_SIGNENC:
                            return $imp_pgp->signAndEncryptMimePart($msg, $recip2, $encrypt == IMP_Pgp::SYM_SIGNENC ? $symmetric_passphrase : null);
                            break;
                    }
                } catch (Horde_Exception $e) {
                    throw new IMP_Compose_Exception(_("PGP Error: ") . $e->getMessage(), $e->getCode());
                }
                break;
            case IMP_Smime::ENCRYPT:
            case IMP_Smime::SIGN:
            case IMP_Smime::SIGNENC:
                if (!IMP_Smime::enabled()) {
                    break;
                }
                $imp_smime = $injector->getInstance('IMP_Smime');
                /* Check to see if we have the user's passphrase yet. */
                switch ($encrypt) {
                    case IMP_Smime::SIGN:
                    case IMP_Smime::SIGNENC:
                        $passphrase_required = $imp_smime->getPassphrase(IMP_Smime::KEY_SECONDARY_OR_PRIMARY) === false;
                        if ($encrypt == IMP_Smime::SIGNENC) {
                            $passphrase_required |= $imp_smime->getPassphrase(IMP_Smime::KEY_PRIMARY) === false;
                        }
                        if ($passphrase_required) {
                            $e = new IMP_Compose_Exception(_("S/MIME Error: Need passphrase for personal private key."));
                            $e->encrypt = 'smime_passphrase_dialog';
                            throw $e;
                        }
                        break;
                }
                /* Do the encryption/signing requested. */
                try {
                    switch ($encrypt) {
                        case IMP_Smime::SIGN:
                            $msg2 = $imp_smime->signMimePart($msg);
                            $this->_setMetadata('encrypt_sign', true);
                            return $msg2;
                        case IMP_Smime::ENCRYPT:
                            return $imp_smime->encryptMimePart($msg, $recip2);
                        case IMP_Smime::SIGNENC:
                            return $imp_smime->signAndEncryptMimePart($msg, $recip2);
                    }
                } catch (Horde_Exception $e) {
                    throw new IMP_Compose_Exception(_("S/MIME Error: ") . $e->getMessage(), $e->getCode());
                }
                break;
        }
        return $msg;
    }