AuthenticationController.java Source code

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Here is the source code for AuthenticationController.java

Source

/* 
************************************************************************
    
# RESTful API for Zabbix based on Java.
#
#  Copyright 2014 Yahya Al-Hazmi, TU Berlin.
# Authors: Mingyuan Wu and Yahya Al-Hazmi
# Licensed under the Apache License, Version 2.0 (the "License"); 
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0 
#       
# Unless required by applicable law or agreed to in writing, software 
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License
#
# This API allows you to request monitoring information from Zabbix-Server 
# through Zabbix-API
    
 ************************************************************************
    
 This class is aimed to achieve the goal of getting authentication from 
 zabbix.
     
 ************************************************************************
*/

import java.util.concurrent.atomic.AtomicLong;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.ByteArrayInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import java.util.Properties;
import java.io.FileInputStream;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.methods.PutMethod;

@Controller
public class AuthenticationController {

    private final AtomicLong counter = new AtomicLong();

    //---------------This Part starts the Zabbix connection---------------
    @RequestMapping("/authentication")
    public @ResponseBody Authentication authentication(
            @RequestParam(value = "username", required = true, defaultValue = "") String username,
            @RequestParam(value = "password", required = true, defaultValue = "") String password)
            throws JSONException, FileNotFoundException, UnsupportedEncodingException, IOException {

        Properties props = new Properties();
        FileInputStream fis = new FileInputStream("properties.xml");
        // loading properites from properties file
        props.loadFromXML(fis);

        String server_ip = props.getProperty("server_ip");
        String ZABBIX_API_URL = "http://" + server_ip + "/api_jsonrpc.php"; // 1.2.3.4 is your zabbix_server_ip

        HttpClient client = new HttpClient();

        PutMethod putMethod = new PutMethod(ZABBIX_API_URL);
        putMethod.setRequestHeader("Content-Type", "application/json-rpc"); // content-type is controlled in api_jsonrpc.php, so set it like this

        // create json object for apiinfo.version 
        JSONObject jsonObj = new JSONObject(
                "{\"jsonrpc\":\"2.0\",\"method\":\"user.authenticate\",\"params\":{\"user\":\"" + username
                        + "\",\"password\":\"" + password + "\"},\"auth\": null,\"id\":0}");

        putMethod.setRequestBody(jsonObj.toString()); // put the json object as input stream into request body 

        String loginResponse = "";

        try {
            client.executeMethod(putMethod); // send to request to the zabbix api

            loginResponse = putMethod.getResponseBodyAsString(); // read the result of the response

            // Work with the data using methods like...
            JSONObject obj = new JSONObject(loginResponse);
            String result = obj.getString("result");
            System.out.println(result);

            return new Authentication(String.format(result));

        } catch (HttpException e) {
            e.printStackTrace();

        } catch (IOException e) {
            e.printStackTrace();
        }
        return new Authentication();
    }
    //--------------This part ends the Zabbix connection------------------
}