JSONParser.java

/*******************************************************************************
 * Created by Orlando Aliaga
 * Copyright 2015 Prey Inc. All rights reserved.
 * License: GPLv3
 * Full license at "/LICENSE"
 ******************************************************************************/
package com.prey.json.parser;

import java.util.ArrayList;
import java.util.List;

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

import android.content.Context;

import com.prey.PreyConfig;
import com.prey.PreyLogger;
import com.prey.net.PreyHttpResponse;
import com.prey.net.PreyRestHttpClient;

public class JSONParser {

    JSONObject jObj;

    boolean error;

    private final static String COMMAND = "\"command\"";
    private final static String TARGET  = "\"target\"";

    // constructor
    public JSONParser() {

    }

    public List<JSONObject> getJSONFromUrl(Context ctx, String uri) {
        PreyLogger.d("getJSONFromUrl:" + uri);
        String sb=null;
        String json=null;


        try{
            PreyHttpResponse response=PreyRestHttpClient.getInstance(ctx).get(uri,null);
            try{sb=response.getResponseAsString();}catch(Exception e){}
            if (sb!=null)
                json = sb.trim();
        }catch(Exception e){
            PreyLogger.e("Error, causa:" + e.getMessage(), e);
            return null;
        }
        PreyLogger.d("cmd:"+sb);
        //json = "[{\"command\":\"history\",\"target\":\"call\",\"options\":{}}]";
        //	json = "[{\"command\":\"history\",\"target\":\"sms\",\"options\":{}}]";

        //	json = "[{\"command\":\"history\",\"target\":\"contact\",\"options\":{}}]";
        //json = "[{\"command\":\"start\",\"target\":\"system_install\",\"options\":{}}]";


        //json = "[{\"command\":\"start\",\"target\":\"server\",\"options\":{}}]";

        //	json = "[{\"command\":\"start\",\"target\":\"ring\",\"options\":{}}]";
        // json = "[{\"command\":\"start\",\"target\":\"video\",\"options\":{}}]";

        //json = "[{\"command\":\"get\",\"target\":\"picture\",\"options\":{}}]";

        //json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\":[\"picture\"]}}]";

        // json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\":[\"picture\",\"location\",\"screenshot\",\"access_points_list\"]}}]";

        // json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\":[\"screenshot\",\"picture\",\"location\"]}}]";

        // json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\":[\"screenshot\"]}}]";

        // json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\":[\"location\"]}}]";

        // json="[ {\"command\": \"start\",\"target\": \"geofencing\",\"options\": {\"origin\": \"-70.60713481,-36.42372147\",\"radius\": \"100\" }}]";

        // json="[ {\"command\": \"start\",\"target\": \"geofencing\",\"options\": {\"origin\": \"-70.7193117,-32.7521112\",\"radius\": \"100\" }}]";

        // json="[ {\"command\": \"start\",\"target\": \"geofencing\",\"options\": {\"id\":\"id1\",\"origin\":\"-70.60713481,-33.42372147\",\"radius\":\"100\",\"type:\":\"in",\"expire":"-1" }}]";
        // json="[ {\"command\": \"stop\",\"target\": \"geofencing\",\"options\": {\"id\":\"id1\"}}]";

        // json="[{\"command\":\"start\",\"target\":\"alert\",\"options\":{\"message\":\"This device i.\"}},{\"command\":\"start\",\"target\":\"alarm\",\"options\":null}, {\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\"[\"picture\",\"location\",\"screenshot\",\"access_points_list\"]}}]";

        // json="[{\"command\":\"start\",\"target\":\"alert\",\"options\":{\"message\":\"This device i.\"}}, {\"command\":\"get\",\"target\":\"report\",\"options\":{\"delay\": \"25\",\"include\"[\"picture\",\"location\",\"screenshot\",\"access_points_list\"]}}]";

        // json="[{\"command\":\"start\",\"target\":\"alert\",\"options\":{\"message\":\"This device i.\"}}

        //json = "[ {\"command\": \"data\",\"target\": \"location\",\"options\": {}}]";

        // json="[{\"command\":\"start\",\"target\":\"alert\",\"options\":{\"message\":\"This device i.\"}}]";
        // json="[{\"command\":\"start\",\"target\":\"alarm\",\"options\":null}]";

        // json="[{\"command\":\"start\",\"target\":\"alarm\",\"options\":null}]";
        //json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"interval\":\"2\"}}]";
        //  json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\":[\"picture\",\"location\",\"screenshot\",\"access_points_list\"],\"interval\":\"10\"}}]";
        //  json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"include\":[\"picture\",\"location\",\"access_points_list\"],\"interval\":\"10\"}}]";


        //json="[{\"command\":\"start\",\"target\":\"camouflage\",\"options\":null}]";
        // json="[{\"command\":\"stop\",\"target\":\"camouflage\",\"options\":{\"interval\":\"2\"}}}]";


        //json="[{\"target\":\"alert\",\"command\":\"start\",\"options\":{\"alert_message\":\"This device is stolen property. Please contact testforkhq@gmail.com to arrange its safe return.\"}},{\"target\":\"lock\",\"command\":\"start\",\"options\":{\"unlock_pass\":\"oso\"}},{\"command\":\"get\",\"target\":\"location\"},{\"target\":\"network\",\"command\":\"start\"},{\"target\":\"geo\",\"command\":\"start\"}]";

        // json="[{\"command\":\"start\",\"target\":\"contacts_backup\" }]";

        //	 json="[{\"command\":\"start\",\"target\":\"contacts_restore\" }]";

//		 json="[{\"command\":\"start\",\"target\":\"browser\" }]";

//		json="[{\"command\":\"get\",\"target\":\"report\",\"options\":{\"interval\":\"2\",\"exclude\":[\"picture\",false]}}]";


        //	json = "[ {\"command\": \"start\",\"target\": \"detach\",\"options\": {}}]";


        if ("[]".equals(json)) {
            return null;
        }
        return getJSONFromTxt(ctx, json);
    }

    public List<JSONObject> getJSONFromTxt(Context ctx, String json) {
        if("Invalid data received".equals(json)) return null;
        List<JSONObject> listaJson = new ArrayList<JSONObject>();
        json="{\"prey\":"+json+"}";
        PreyLogger.d(json);
        try{
            JSONObject jsnobject = new JSONObject(json);
            JSONArray jsonArray = jsnobject.getJSONArray("prey");
            for (int i = 0; i < jsonArray.length(); i++) {
                String jsonCommand= jsonArray.get(i).toString();
                JSONObject explrObject =new JSONObject(jsonCommand);
                PreyLogger.i(explrObject.toString());
                listaJson.add(explrObject);
            }
        }catch(Exception e){
            //PreyLogger.e("error in parser:"+e.getMessage(), e);
        }
        return listaJson;
    }

    public List<JSONObject> getJSONFromTxt2(Context ctx, String json) {
        jObj = null;
        List<JSONObject> listaJson = new ArrayList<JSONObject>();
        List<String> listCommands = getListCommands(json);
        for (int i = 0; listCommands != null && i < listCommands.size(); i++) {
            String command = listCommands.get(i);
            try {
                jObj = new JSONObject(command);
                listaJson.add(jObj);
            } catch (JSONException e) {
                PreyLogger.e("JSON Parser, Error parsing data " + e.toString(), e);
            }
        }
        PreyLogger.i("json:" + json);
        // return JSON String
        return listaJson;
    }

    private List<String> getListCommands(String json) {
        if (json.indexOf("[{"+COMMAND)==0){
            return getListCommandsCmd(json);
        }else{
            return getListCommandsTarget(json);
        }
    }

    private List<String> getListCommandsTarget(String json) {
        json = json.replaceAll("nil", "{}");
        json = json.replaceAll("null", "{}");
        List<String> lista = new ArrayList<String>();
        int posicion = json.indexOf(TARGET);
        json = json.substring(posicion + 8);
        posicion = json.indexOf(TARGET);
        String command = "";
        while (posicion > 0) {
            command = json.substring(0, posicion);
            json = json.substring(posicion + 8);
            lista.add("{" + TARGET + cleanChar(command));
            posicion = json.indexOf("\"target\"");
        }
        lista.add("{" + TARGET + cleanChar(json));
        return lista;
    }

    private List<String> getListCommandsCmd(String json) {
        json = json.replaceAll("nil", "{}");
        json = json.replaceAll("null", "{}");
        List<String> lista = new ArrayList<String>();
        int posicion = json.indexOf(COMMAND);
        json = json.substring(posicion + 9);
        posicion = json.indexOf(COMMAND);
        String command = "";
        while (posicion > 0) {
            command = json.substring(0, posicion);
            json = json.substring(posicion + 9);
            lista.add("{" + COMMAND + cleanChar(command));
            posicion = json.indexOf("\"command\"");
        }
        lista.add("{" + COMMAND + cleanChar(json));
        return lista;
    }

    private String cleanChar(String json) {
        if (json != null) {
            json = json.trim();
            char c = json.charAt(json.length() - 1);
            while (c == '{' || c == ',' || c == ']') {
                json = json.substring(0, json.length() - 1);
                json = json.trim();
                c = json.charAt(json.length() - 1);
            }
        }
        return json;
    }
}