com.leclercb.taskunifier.gui.plugins.PluginLicense.java Source code

Introduction

Here is the source code for com.leclercb.taskunifier.gui.plugins.PluginLicense.java

Source

package com.leclercb.taskunifier.gui.plugins;

import java.net.URI;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URIUtils;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.message.BasicNameValuePair;

import com.leclercb.commons.api.utils.EqualsUtils;
import com.leclercb.commons.api.utils.HttpResponse;
import com.leclercb.taskunifier.gui.api.synchronizer.exc.SynchronizerLicenseException;
import com.leclercb.taskunifier.gui.utils.HttpUtils;

public class PluginLicense {

    private String pluginId;
    private String email;
    private String serial;
    private String cipher;

    public PluginLicense(String pluginId, String email, String serial, String cipher) {
        this.setPluginId(pluginId);
        this.setEmail(email);
        this.setSerial(serial);
        this.setCipher(cipher);
    }

    public String getPluginId() {
        return this.pluginId;
    }

    public void setPluginId(String pluginId) {
        this.pluginId = pluginId;
    }

    public String getEmail() {
        return this.email;
    }

    public void setEmail(String email) {
        if (email != null && email.length() != 0)
            email = email.trim();

        this.email = email;
    }

    public String getSerial() {
        return this.serial;
    }

    public void setSerial(String serial) {
        if (serial != null && serial.length() != 0)
            serial = serial.trim().toUpperCase();

        this.serial = serial;
    }

    public String getCipher() {
        return this.cipher;
    }

    public void setCipher(String cipher) {
        this.cipher = cipher;
    }

    public boolean checkLicense() throws SynchronizerLicenseException {
        return this.checkLicense(true);
    }

    public boolean checkLicense(boolean getLicense) throws SynchronizerLicenseException {
        if (this.email == null || this.email.length() == 0)
            return false;

        if (getLicense && (this.serial == null || this.serial.length() == 0 || !this.checkValidLicense()))
            this.serial = this.getLicense();

        if (this.serial == null || this.serial.length() == 0)
            return false;

        if (this.checkValidLicense()) {
            this.setSerial(this.serial);
            return true;
        }

        return false;
    }

    private String getLicense() throws SynchronizerLicenseException {
        if (this.email == null || this.email.length() == 0)
            return null;

        try {
            HttpResponse response = HttpUtils.getHttpGetResponse(this.getCheckSerialUri());

            if (!response.isSuccessfull())
                throw new Exception("Error while retrieving license key");

            return response.getContent().trim();
        } catch (SynchronizerLicenseException e) {
            throw e;
        } catch (Exception e) {
            throw new SynchronizerLicenseException(e.getMessage(), e);
        }
    }

    private boolean checkValidLicense() {
        if (this.email == null || this.email.length() == 0)
            return false;

        if (this.serial == null || this.serial.length() == 0)
            return false;

        String data = this.email + this.cipher;
        String validSerial = DigestUtils.shaHex(data).toUpperCase();

        return EqualsUtils.equals(this.serial, validSerial);
    }

    private URI getCheckSerialUri() throws Exception {
        List<NameValuePair> parameters = new ArrayList<NameValuePair>();
        parameters.add(new BasicNameValuePair("plugin", this.pluginId));
        parameters.add(new BasicNameValuePair("email", this.email));

        return URIUtils.createURI("http", "www.taskunifier.com", -1, "/plugins/paypal/checklicense.php",
                URLEncodedUtils.format(parameters, "UTF-8"), null);
    }

}