com.orange.oidc.secproxy_service.Token.java Source code

Introduction

Here is the source code for com.orange.oidc.secproxy_service.Token.java

Source

/*
* 
* Copyright (C) 2015 Orange Labs
* 
* 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.
* 
*/

package com.orange.oidc.secproxy_service;

import java.util.Calendar;
import java.util.TimeZone;

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

import android.util.Base64;
import android.util.Log;

public class Token {

    String iss;
    String sub;
    String aud;
    String jti;
    String exp;
    String iat;
    String auth_time;
    String nonce;
    String at_hash;
    String acr;
    String amr;
    String azp;
    String tak; // tim app key

    public Token() {
    }

    public Token(String token) {
        fromToken(token);
    }

    void reset() {
        iss = null;
        sub = null;
        aud = null;
        jti = null;
        exp = null;
        iat = null;
        auth_time = null;
        nonce = null;
        at_hash = null;
        acr = null;
        amr = null;
        azp = null;
        tak = null;
    }

    static String getJSON(String token) {
        String ds = null;

        String tokenB64 = null;
        if (token != null) {
            String[] p = token.split("\\.");
            if (p != null && p.length == 3) {
                tokenB64 = p[1];
            }
        }

        if (tokenB64 != null) {
            byte[] decoded = null;
            try {
                decoded = Base64.decode(tokenB64, Base64.URL_SAFE);
                ds = new String(decoded, "UTF-8");
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            if (decoded == null) {
                try {
                    decoded = Base64.decode(tokenB64, Base64.DEFAULT);
                    ds = new String(decoded, "UTF-8");
                } catch (Exception ee) {
                    // TODO Auto-generated catch block
                    ee.printStackTrace();
                }
            }
        }
        return ds;
    }

    public void fromToken(String token) {
        reset();
        if (token == null)
            return;

        try {
            JSONObject jObject = null;

            // try token as is
            try {
                jObject = new JSONObject(token);
            } catch (Exception e) {
            }

            // try to decode JWT
            if (jObject == null) {
                String ds = getJSON(token);
                if (ds != null)
                    jObject = new JSONObject(ds);
            }

            if (jObject != null) {
                JSONArray names = jObject.names();
                if (names != null) {
                    for (int j = 0; j < names.length(); j++) {
                        String name = names.getString(j);
                        // Log.d("Token",name);
                        setField(name, jObject.get(name));
                    }
                }
            }
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    void setField(String name, Object object) {
        if (name == null || name.length() == 0)
            return;

        if (name.compareTo("iss") == 0) {
            iss = (String) object;
        } else if (name.compareTo("sub") == 0) {
            sub = (String) object;
        } else if (name.compareTo("aud") == 0) {
            JSONArray jArray = (JSONArray) object;
            aud = "";
            for (int i = 0; i < jArray.length(); i++) {
                try {
                    aud += jArray.getString(i) + " ";
                } catch (JSONException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        } else if (name.compareTo("jti") == 0) {
            jti = (String) object;
        } else if (name.compareTo("exp") == 0) {
            exp = getIntAsString(object);
        } else if (name.compareTo("iat") == 0) {
            iat = getIntAsString(object);
        } else if (name.compareTo("auth_time") == 0) {
            auth_time = getIntAsString(object);
        } else if (name.compareTo("nonce") == 0) {
            nonce = (String) object;
        } else if (name.compareTo("at_hash") == 0) {
            at_hash = (String) object;
        } else if (name.compareTo("acr") == 0) {
            acr = (String) object;
        } else if (name.compareTo("amr") == 0) {
            amr = (String) object;
        } else if (name.compareTo("azp") == 0) {
            azp = (String) object;
        } else if (name.compareTo("tim_app_key") == 0) {
            tak = (String) object;
        }
    }

    String getIntAsString(Object o) {
        try {
            return ((Integer) o).toString();
        } catch (Exception e) {
            try {
                return (String) o;
            } catch (Exception ee) {
            }
        }
        return null;
    }

    String fromCal(Calendar c) {
        if (c != null) {
            return c.get(Calendar.DAY_OF_MONTH) + "/" + c.get(Calendar.MONTH) + "/" + c.get(Calendar.YEAR) + " "
                    + c.get(Calendar.HOUR_OF_DAY) + ":" + c.get(Calendar.MINUTE) + ":" + c.get(Calendar.SECOND);
        }
        return null;
    }

    boolean isExpired() {
        Calendar cal = getExp();
        if (cal != null)
            Log.d("Token", "expiration: " + fromCal(cal));
        if (cal != null && cal.after(Calendar.getInstance())) {
            return false;
        }
        return true;
    }

    Calendar getExp() {
        return fromStringToDate(exp);
    }

    Calendar getIat() {
        return fromStringToDate(iat);
    }

    Calendar getAuthTime() {
        return fromStringToDate(auth_time);
    }

    Calendar fromStringToDate(String s) {
        if (s != null && s.length() > 0) {
            try {
                long d = Long.parseLong(s);
                Calendar c = Calendar.getInstance();
                c.setTimeInMillis(d * 1000);
                c.setTimeZone(TimeZone.getDefault());
                return c;

            } catch (Exception e) {
            }
        }
        return null;
    }
}