#!/usr/bin/env python3
# -*-coding:UTF-8 -*

'''
    Flask functions and routes for tracked items
'''
import os
import sys
import json
import redis
import datetime
import calendar
import flask
from flask import Flask, render_template, jsonify, request, Blueprint, url_for, redirect, Response, escape

from Role_Manager import login_admin, login_analyst, login_read_only
from flask_login import login_required, current_user

# ---------------------------------------------------------------

sys.path.append(os.path.join(os.environ['AIL_BIN'], 'lib'))
import Term
import Tracker
import item_basic

sys.path.append(os.path.join(os.environ['AIL_BIN'], 'packages'))
import Tag

# ============ VARIABLES ============
import Flask_config

app = Flask_config.app
baseUrl = Flask_config.baseUrl
bootstrap_label = Flask_config.bootstrap_label

hunter = Blueprint('hunter', __name__, template_folder='templates')

# ============ FUNCTIONS ============

# ============ ROUTES ============

@hunter.route("/trackers")
@login_required
@login_read_only
def tracked_menu():
    user_id = current_user.get_id()
    user_term = Term.get_all_user_tracked_terms(user_id)
    global_term = Term.get_all_global_tracked_terms()
    return render_template("trackersManagement.html", user_term=user_term, global_term=global_term, bootstrap_label=bootstrap_label)

@hunter.route("/trackers/word")
@login_required
@login_read_only
def tracked_menu_word():
    filter_type = 'word'
    user_id = current_user.get_id()
    user_term = Term.get_all_user_tracked_terms(user_id, filter_type='word')
    global_term = Term.get_all_global_tracked_terms(filter_type='word')
    return render_template("trackersManagement.html", user_term=user_term, global_term=global_term, bootstrap_label=bootstrap_label, filter_type=filter_type)

@hunter.route("/trackers/set")
@login_required
@login_read_only
def tracked_menu_set():
    filter_type = 'set'
    user_id = current_user.get_id()
    user_term = Term.get_all_user_tracked_terms(user_id, filter_type=filter_type)
    global_term = Term.get_all_global_tracked_terms(filter_type=filter_type)
    return render_template("trackersManagement.html", user_term=user_term, global_term=global_term, bootstrap_label=bootstrap_label, filter_type=filter_type)

@hunter.route("/trackers/regex")
@login_required
@login_read_only
def tracked_menu_regex():
    filter_type = 'regex'
    user_id = current_user.get_id()
    user_term = Term.get_all_user_tracked_terms(user_id, filter_type=filter_type)
    global_term = Term.get_all_global_tracked_terms(filter_type=filter_type)
    return render_template("trackersManagement.html", user_term=user_term, global_term=global_term, bootstrap_label=bootstrap_label, filter_type=filter_type)

@hunter.route("/trackers/yara")
@login_required
@login_read_only
def tracked_menu_yara():
    filter_type = 'yara'
    user_id = current_user.get_id()
    user_term = Term.get_all_user_tracked_terms(user_id, filter_type=filter_type)
    global_term = Term.get_all_global_tracked_terms(filter_type=filter_type)
    return render_template("trackersManagement.html", user_term=user_term, global_term=global_term, bootstrap_label=bootstrap_label, filter_type=filter_type)


@hunter.route("/tracker/add", methods=['GET', 'POST'])
@login_required
@login_analyst
def add_tracked_menu():
    if request.method == 'POST':
        tracker = request.form.get("tracker")
        tracker_uuid = request.form.get("tracker_uuid")
        tracker_type  = request.form.get("tracker_type")
        nb_words = request.form.get("nb_word", 1)
        description = request.form.get("description", '')
        webhook = request.form.get("webhook", '')
        level = request.form.get("level", 0)
        mails = request.form.get("mails", [])
        sources = request.form.get("sources", [])

        tags = request.form.get("tags", [])
        taxonomies_tags = request.form.get('taxonomies_tags')
        if taxonomies_tags:
            try:
                taxonomies_tags = json.loads(taxonomies_tags)
            except Exception:
                taxonomies_tags = []
        else:
            taxonomies_tags = []
        galaxies_tags = request.form.get('galaxies_tags')
        if galaxies_tags:
            try:
                galaxies_tags = json.loads(galaxies_tags)
            except Exception:
                galaxies_tags = []
        

        # YARA #
        if tracker_type == 'yara':
            yara_default_rule = request.form.get("yara_default_rule")
            yara_custom_rule =  request.form.get("yara_custom_rule")
            if yara_custom_rule:
                tracker = yara_custom_rule
                tracker_type='yara_custom'
            else:
                tracker = yara_default_rule
                tracker_type='yara_default'

        if level == 'on':
            level = 1
        if mails:
            mails = mails.split()
        if tags:
            tags = tags.split()
        if sources:
            sources = json.loads(sources)

        input_dict = {"tracker": tracker, "type": tracker_type, "nb_words": nb_words,
                        "tags": tags, "mails": mails, "sources": sources,
                        "level": level, "description": description, "webhook": webhook}
        user_id = current_user.get_id()
        # edit tracker
        if tracker_uuid:
            input_dict['uuid'] = tracker_uuid
        res = Tracker.api_add_tracker(input_dict, user_id)
        if res[1] == 200:
            if 'uuid' in res[0]:
                return redirect(url_for('hunter.show_tracker', uuid=res[0]['uuid']))
            else:
                return redirect(url_for('hunter.tracked_menu'))
        else:
            ## TODO: use modal
            return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]
    else:
        return render_template("edit_tracker.html",
                                all_sources=item_basic.get_all_items_sources(r_list=True),
                                tags_selector_data=Tag.get_tags_selector_data(),
                                all_yara_files=Tracker.get_all_default_yara_files())

@hunter.route("/tracker/edit", methods=['GET', 'POST'])
@login_required
@login_analyst
def edit_tracked_menu():
    user_id = current_user.get_id()
    tracker_uuid = request.args.get('uuid', None)

    res = Term.check_term_uuid_valid_access(tracker_uuid, user_id) # check if is author or admin
    if res: # invalid access
        return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]

    dict_tracker = Tracker.get_tracker_metadata(tracker_uuid, user_id=True, level=True, description=True, tags=True, mails=True, sources=True, webhook=True)
    dict_tracker['tags'] = ' '.join(dict_tracker['tags'])
    dict_tracker['mails'] = ' '.join(dict_tracker['mails'])

    if dict_tracker['type'] == 'set':
        dict_tracker['tracker'], dict_tracker['nb_words'] = dict_tracker['tracker'].split(';')
        dict_tracker['tracker'] = dict_tracker['tracker'].replace(',', ' ')
    elif dict_tracker['type'] == 'yara': #is_valid_default_yara_rule
        if Tracker.is_default_yara_rule(dict_tracker['tracker']):
            dict_tracker['yara_file'] = dict_tracker['tracker'].split('/')
            dict_tracker['yara_file'] = dict_tracker['yara_file'][-2] + '/' + dict_tracker['yara_file'][-1]
            dict_tracker['content'] = None
        else:
            dict_tracker['yara_file'] = None
            dict_tracker['content'] = Tracker.get_yara_rule_content(dict_tracker['tracker'])

    return render_template("edit_tracker.html", dict_tracker=dict_tracker,
                                all_sources=item_basic.get_all_items_sources(r_list=True),
                                all_yara_files=Tracker.get_all_default_yara_files())

    ## TO EDIT
    # word
    # set of word + nb words
    # regex
    # yara custum
    # yara default ???? => allow edit ?

    #### EDIT SHow Trackers ??????????????????????????????????????????????????

@hunter.route("/tracker/show_tracker")
@login_required
@login_read_only
def show_tracker():
    user_id = current_user.get_id()
    tracker_uuid = request.args.get('uuid', None)
    res = Term.check_term_uuid_valid_access(tracker_uuid, user_id)
    if res: # invalid access
        return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]

    date_from = request.args.get('date_from')
    date_to = request.args.get('date_to')

    if date_from:
        date_from = date_from.replace('-', '')
    if date_to:
        date_to = date_to.replace('-', '')

    tracker_metadata = Tracker.get_tracker_metadata(tracker_uuid, user_id=True, level=True, description=True, tags=True, mails=True, sources=True, sparkline=True, webhook=True)

    if tracker_metadata['type'] == 'yara':
        yara_rule_content = Tracker.get_yara_rule_content(tracker_metadata['tracker'])
    else:
        yara_rule_content = None

    if date_from:
        res = Term.parse_get_tracker_term_item({'uuid': tracker_uuid, 'date_from': date_from, 'date_to': date_to}, user_id)
        if res[1] !=200:
            return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]
        tracker_metadata['items'] = res[0]['items']
        tracker_metadata['date_from'] = res[0]['date_from']
        tracker_metadata['date_to'] = res[0]['date_to']
    else:
        tracker_metadata['items'] = []
        tracker_metadata['date_from'] = ''
        tracker_metadata['date_to'] = ''

    tracker_metadata['sources'] = sorted(tracker_metadata['sources'])

    return render_template("showTracker.html", tracker_metadata=tracker_metadata,
                                    yara_rule_content=yara_rule_content,
                                    bootstrap_label=bootstrap_label)

@hunter.route("/tracker/update_tracker_description", methods=['POST'])
@login_required
@login_analyst
def update_tracker_description():
    user_id = current_user.get_id()
    term_uuid = request.form.get('uuid')
    res = Term.check_term_uuid_valid_access(term_uuid, user_id)
    if res: # invalid access
        return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]
    description = escape( str(request.form.get('description', '')) )
    Term.replace_tracker_description(term_uuid, description)
    return redirect(url_for('hunter.show_tracker', uuid=term_uuid))

@hunter.route("/tracker/update_tracker_tags", methods=['POST'])
@login_required
@login_analyst
def update_tracker_tags():
    user_id = current_user.get_id()
    term_uuid = request.form.get('uuid')
    res = Term.check_term_uuid_valid_access(term_uuid, user_id)
    if res: # invalid access
        return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]
    tags = request.form.get('tags')
    if tags:
        tags = tags.split()
    else:
        tags = []
    Term.replace_tracked_term_tags(term_uuid, tags)
    return redirect(url_for('hunter.show_tracker', uuid=term_uuid))

@hunter.route("/tracker/update_tracker_mails", methods=['POST'])
@login_required
@login_analyst
def update_tracker_mails():
    user_id = current_user.get_id()
    term_uuid = request.form.get('uuid')
    res = Term.check_term_uuid_valid_access(term_uuid, user_id)
    if res: # invalid access
        return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]
    mails = request.form.get('mails')
    if mails:
        mails = mails.split()
    else:
        mails = []
    res = Term.replace_tracked_term_mails(term_uuid, mails)
    if res: # invalid mail
        return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]
    return redirect(url_for('hunter.show_tracker', uuid=term_uuid))

@hunter.route("/tracker/delete", methods=['GET'])
@login_required
@login_analyst
def delete_tracker():
    user_id = current_user.get_id()
    term_uuid = request.args.get('uuid')
    res = Term.parse_tracked_term_to_delete({'uuid': term_uuid}, user_id)
    if res[1] !=200:
        return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]
    return redirect(url_for('hunter.tracked_menu'))

@hunter.route("/tracker/get_json_tracker_stats", methods=['GET'])
@login_required
@login_read_only
def get_json_tracker_stats():
    date_from = request.args.get('date_from')
    date_to = request.args.get('date_to')

    if date_from:
        date_from = date_from.replace('-', '')
    if date_to:
        date_to = date_to.replace('-', '')

    tracker_uuid = request.args.get('uuid')

    if date_from and date_to:
        res = Term.get_list_tracked_term_stats_by_day([tracker_uuid], date_from=date_from, date_to=date_to)
    else:
        res = Term.get_list_tracked_term_stats_by_day([tracker_uuid])
    return jsonify(res)

@hunter.route("/tracker/yara/default_rule/content", methods=['GET'])
@login_required
@login_read_only
def get_default_yara_rule_content():
    default_yara_rule = request.args.get('rule_name')
    res = Tracker.api_get_default_rule_content(default_yara_rule)
    return Response(json.dumps(res[0], indent=2, sort_keys=True), mimetype='application/json'), res[1]

# ========= REGISTRATION =========
app.register_blueprint(hunter, url_prefix=baseUrl)