public String buildTokenString()

in Server/java/src/main/java/com/company/apptoken/model/AppToken.java [49:84]

• 29 lines of code
• 4 McCabe index (conditional complexity)

    public String buildTokenString() throws Throwable {
        if (StringUtils.isBlank(this.appKey)) {
            throw new IllegalArgumentException("missing secretKey");
        }

        if (Objects.isNull(this.service)) {
            throw new IllegalArgumentException("missing service");
        }

        final byte[] signatureTemp = SignatureUtils.sign(this.appKey, this.issueTimestamp, this.salt);

        final ByteBuf buf = Unpooled.buffer();
        final byte[] appId = this.appId.getBytes();
        buf.writeInt(appId.length);
        buf.writeBytes(appId);
        buf.writeInt(this.issueTimestamp);
        buf.writeInt(this.salt);
        buf.writeInt(this.timestamp);

        this.service.pack(buf);
        if (Objects.isNull(this.options)) {
            this.options = new AppTokenOptions();
        }
        this.options.pack(buf);

        final Mac mac = Mac.getInstance(SecurityConstants.ALGORITHM_HMAC_SHA256);
        mac.init(new SecretKeySpec(signatureTemp, SecurityConstants.ALGORITHM_HMAC_SHA256));
        final byte[] signature = mac.doFinal(buf.array());

        final ByteBuf bufToken = Unpooled.buffer();
        bufToken.writeInt(signature.length);
        bufToken.writeBytes(signature);
        bufToken.writeBytes(buf.array());

        return AppTokenConstants.VERSION_0 + EncodeUtils.base64Encode(CompressUtils.compress(bufToken.array()));
    }