selfvis.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
selfspy-vis

Copyright 2012 David Fendrich (Gurgeh)
Copyright 2015 Hannes Schulz (temporaer)
Copyright 2016 Lilian Besson (Naereen)
https://github.com/Naereen/selfspy-vis

This file is part of Selfspy
https://github.com/gurgeh/selfspy

Selfspy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Selfspy is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Selfspy.  If not, see <http://www.gnu.org/licenses/>.
"""

from __future__ import division, print_function, absolute_import

import os
import sys
import re
import datetime
import time
import seaborn as sns

import argparse
import ConfigParser

from collections import Counter

from Crypto.Cipher import Blowfish
import hashlib

import selfspy.config as cfg

from selfspy import check_password
from selfspy.password_dialog import get_password
from selfspy.period import Period

from selfspy import models

import codecs
sys.stdout = codecs.getwriter('utf8')(sys.stdout)

import numpy as np


# Constants
ACTIVE_SECONDS = 180
PERIOD_LOOKUP = {'s': 'seconds', 'm': 'minutes', 'h': 'hours', 'd': 'days', 'w': 'weeks'}
ACTIVITY_ACTIONS = {'active', 'periods', 'pactive', 'tactive', 'ratios'}
SUMMARY_ACTIONS = ACTIVITY_ACTIONS.union({'pkeys', 'tkeys', 'key_freqs', 'clicks', 'ratios'})

PROCESS_ACTIONS = {'pkeys', 'pactive'}
WINDOW_ACTIONS = {'tkeys', 'tactive'}

BUTTON_MAP = [('button1', 'left'),
              ('button2', 'middle'),
              ('button3', 'right'),
              ('button4', 'up'),
              ('button5', 'down')]


def pretty_seconds(secs):
    secs = int(secs)
    active = False
    outs = ''
    days = secs / (3600 * 24)
    if days:
        active = True
        outs += '%d days, ' % days
    secs -= days * (3600 * 24)

    hours = secs / 3600
    if hours:
        active = True
    if active:
        outs += '%dh ' % hours
    secs -= hours * 3600

    minutes = secs / 60
    if minutes:
        active = True
    if active:
        outs += '%dm ' % minutes
    secs -= minutes * 60

    outs += '%ds' % secs

    return outs


def make_time_string(dates, clock):
    now = datetime.datetime.now()
    now2 = datetime.datetime.now()

    if dates is None:
        dates = []

    if isinstance(dates, list) and len(dates) > 0:
        # if type(dates[0]) is str:
        if isinstance(dates[0], str):
            datesstr = " ".join(dates)
        else:
            print('%s is of uncompatible type list of %s.' % (
                dates[0], str(type(dates[0]))))
    elif isinstance(dates, basestring):
        datesstr = dates
    else:
        datesstr = now.strftime('%Y %m %d')
    dates = datesstr.split()  # any whitespace

    if len(dates) > 3:
        print('Max three arguments to date', dates)
        sys.exit(1)

    try:
        dates = [int(d) for d in dates]
        if len(dates) == 3:
            now = now.replace(year=dates[0])
        if len(dates) >= 2:
            now = now.replace(month=dates[-2])
        if len(dates) >= 1:
            now = now.replace(day=dates[-1])

        if len(dates) == 2:
            if now > now2:
                now = now.replace(year=now.year - 1)

        if len(dates) == 1:
            if now > now2:
                m = now.month - 1
                if m:
                    now = now.replace(month=m)
                else:
                    now = now.replace(year=now.year - 1, month=12)
    except ValueError:
        print('Malformed date', dates)
        sys.exit(1)

    if clock:
        try:
            hour, minute = [int(v) for v in clock.split(':')]
        except ValueError:
            print('Malformed clock', clock)
            sys.exit(1)

        now = now.replace(hour=hour, minute=minute, second=0)

        if now > now2:
            now -= datetime.timedelta(days=1)

    return now.strftime('%Y-%m-%d %H:%M'), now


def make_period(q, period, who, start, prop):
    if isinstance(period, list) and len(period) > 0:
        if type(period[0]) is str:
            periodstr = "".join(period)
        else:
            print('%s is of uncompatible type list of %s.' % (who, str(type(period[0]))))
    elif isinstance(period, basestring):
        periodstr = period.translate(None, " \t")
    else:
        print('%s is of uncompatible type %s.' % (who, str(type(period))))
        sys.exit(1)
    pmatch = re.match(r"(\d+)([" + "".join(PERIOD_LOOKUP.keys()) + "]?)", periodstr)
    if pmatch is None:
        print('%s has an unrecognizable format: %s' % (who, periodstr))
        sys.exit(1)
    period = [pmatch.group(1)] + ([pmatch.group(2)] if pmatch.group(2) else [])

    d = {}
    val = int(period[0])
    if len(period) == 1:
        d['hours'] = val
    else:
        if period[1] not in PERIOD_LOOKUP:
            print('--limit unit "%s" not one of %s' % (period[1], PERIOD_LOOKUP.keys()))
            sys.exit(1)
        d[PERIOD_LOOKUP[period[1]]] = val

    if start:
        return q.filter(prop <= start + datetime.timedelta(**d))
    else:
        start = datetime.datetime.now() - datetime.timedelta(**d)
        return q.filter(prop >= start), start


def create_times(row):
    current_time = time.mktime(row.created_at.timetuple())
    abs_times = [current_time]
    for t in row.load_timings():
        current_time -= t
        abs_times.append(current_time)
    abs_times.reverse()
    return abs_times


class Selfstats(object):
    def __init__(self, db_name, args):
        self.args = args
        self.session_maker = models.initialize(db_name)
        self.inmouse = False

        self.check_needs()

    def do(self):
        if self.need_summary:
            self.calc_summary()
            self.show_summary()
        else:
            self.show_rows()

    def check_needs(self):
        self.need_text = True
        self.need_activity = True
        self.need_timings = True
        self.need_keys = True
        self.need_humanreadable = True
        self.need_summary = True
        self.need_process = True
        self.need_window = True

        if self.args['body'] is not None:
            self.need_text = True
        if self.args['showtext']:
            self.need_text = True
        cutoff = [self.args[k] for k in ACTIVITY_ACTIONS if self.args[k]]
        if cutoff:
            if any(c != cutoff[0] for c in cutoff):
                print('You must give the same time argument to the different parameters in the --active family, when you use several in the same query.')
                sys.exit(1)
            self.need_activity = cutoff[0]
            self.need_timings = True
        if self.args['key_freqs']:
            self.need_keys = True
        if self.args['human_readable']:
            self.need_humanreadable = True

        if any(self.args[k] for k in SUMMARY_ACTIONS):
            self.need_summary = True

    def maybe_reg_filter(self, q, name, names, table, source_prop, target_prop):
        if self.args[name] is not None:
            ids = []
            try:
                reg = re.compile(self.args[name], re.I)
            except re.error as e:
                print('Error in regular expression', str(e))
                sys.exit(1)

            for x in self.session.query(table).all():
                if reg.search(x.__getattribute__(source_prop)):
                    ids.append(x.id)
            if not self.inmouse:
                print('%d %s matched' % (len(ids), names))
            if ids:
                q = q.filter(target_prop.in_(ids))
            else:
                return q, False
        return q, True

    def filter_prop(self, prop, startprop):
        self.session = self.session_maker()

        q = self.session.query(prop).order_by(prop.id)

        if self.args['date'] or self.args['clock']:
            s, start = make_time_string(self.args['date'], self.args['clock'])
            q = q.filter(prop.created_at >= s)
            if self.args['limit'] is not None:
                q = make_period(q, self.args['limit'], '--limit', start, startprop)
        elif self.args['id'] is not None:
            q = q.filter(prop.id >= self.args['id'])
            if self.args['limit'] is not None:
                q = q.filter(prop.id < self.args['id'] + int(self.args['limit'][0]))
        elif self.args['back'] is not None:
            q, start = make_period(q, self.args['back'], '--back', None, startprop)
            if self.args['limit'] is not None:
                q = make_period(q, self.args['limit'], '--limit', start, startprop)

        q, found = self.maybe_reg_filter(q, 'process', 'process(es)', models.Process, 'name', prop.process_id)
        if not found:
            return None

        q, found = self.maybe_reg_filter(q, 'title', 'title(s)', models.Window, 'title', prop.window_id)
        if not found:
            return None

        return q

    def filter_keys(self):
        q = self.filter_prop(models.Keys, models.Keys.started)
        if q is None:
            return

        if self.args['min_keys'] is not None:
            q = q.filter(models.Keys.nrkeys >= self.args['min_keys'])

        if self.args['body']:
            try:
                bodrex = re.compile(self.args['body'], re.I)
            except re.error as e:
                print('Error in regular expression', str(e))
                sys.exit(1)
            for x in q.all():
                if self.need_humanreadable:
                    body = x.decrypt_humanreadable()
                else:
                    body = x.decrypt_text()
                if bodrex.search(body):
                    yield x
        else:
            for x in q:
                yield x

    def filter_clicks(self):
        self.inmouse = True
        q = self.filter_prop(models.Click, models.Click.created_at)
        if q is None:
            return

        for x in q:
            yield x

    def show_rows(self):
        fkeys = self.filter_keys()
        rows = 0
        print('<RowID> <Starting date and time> <Duration> <Process> <Window title> <Number of keys pressed>',)
        if self.args['showtext'] and self.need_humanreadable:
            print('<Decrypted Human Readable text>')
        elif self.args['showtext']:
            print('<Decrypted text>')
        else:
            print()

        for row in fkeys:
            rows += 1
            print(row.id, row.started, pretty_seconds((row.created_at - row.started).total_seconds()), row.process.name, '"%s"' % row.window.title, row.nrkeys,)
            if self.args['showtext']:
                if self.need_humanreadable:
                    print(row.decrypt_humanreadable().decode('utf8'))
                else:
                    print(row.decrypt_text().decode('utf8'))
            else:
                print()
        print(rows, 'rows')

    def click_pie(self, stats, unit='clicks'):
        import pandas as pd
        import matplotlib.pyplot as plt
        import matplotlib
        matplotlib.interactive(False)
        sns.set_style("white")
        L = []
        idx = []
        Lt = {}
        for p, k in stats.iteritems():
            if unit not in k:
                continue
            idx.append(p)
            k['proc'] = p
            L.append(k)
            dates, values = [], []
            for t1, t2 in k['activity'].times:
                dt = datetime.datetime.fromtimestamp(int(t1))
                dates.append(dt)
                values.append(t2 - t1)
            # s = pd.Series(values, index=pd.to_datetime(dates))
            s = pd.Series(values, index=dates)
            if p in Lt:
                Lt[p] = pd.concat((Lt[p], s))
            else:
                Lt[p] = s

        def make_others(D, n=7):
            if 'other' in D.keys():
                D = D.drop('other', 1)
            keys = list(x for x in D.keys())
            keys = sorted(keys, key=lambda x: D[x].sum(), reverse=True)
            keys = keys[:n]

            other_keys = [t for t in D.keys()
                          if t not in keys]

            if len(other_keys) < 2:
                return D

            if isinstance(D[other_keys[0]], int):
                D2 = D[keys].copy()
                D2['other'] = sum(D[k] for k in other_keys)
                return D2

            s = D[other_keys[0]]
            for k in other_keys[1:]:
                s = pd.concat((s, D[k]))
                continue
            D2 = D.join(pd.DataFrame(dict(other=s)))

            keys += 'other',

            D2 = D2[keys]

            return D2

        # from IPython.core.debugger import Tracer; Tracer()()
        df = pd.DataFrame(L, index=idx)
        df = make_others(df[unit])
        with sns.color_palette("Set2", len(df.index)):
            df.plot(kind='pie', y=unit)
        plt.savefig(unit + "-total.png")
        plt.clf()

        from matplotlib import dates as mpldates
        from matplotlib.dates import DateFormatter, MinuteLocator, SecondLocator, HourLocator

        hfmt = mpldates.DateFormatter('%m/%d %H:%M')

        Lt = [pd.DataFrame({k: v}) for k, v in Lt.iteritems()]
        df = pd.concat(Lt, axis=0)
        df = make_others(df)
        df['all'] = df.sum(axis=1)
        for k in df.columns:
            df[k] = pd.to_timedelta(df[k], unit='s')
        # plot the timeline, maybe join close events later
        fig, ax = plt.subplots(1,1)
        gxmin, gxmax = df.index.min(), df.index.max()
        pal = sns.color_palette("Set2", len(df.columns))
        for idx, (col, c) in enumerate(zip(df.columns, pal)):
            s = df[col].dropna()
            if len(s) < 2:
                continue
            xmin = np.array(pd.Series(s.index))
            xmax = xmin + np.array(s)
            # http://stackoverflow.com/questions/13703720/converting-between-datetime-timestamp-and-datetime64
            gxmax = max(gxmax, datetime.datetime.utcfromtimestamp(xmax.max().astype(int) * 1e-9))
            xmax = np.array(xmax)
            y = np.ones(len(xmin))*idx
            plt.hlines(y, xmin, xmax, lw=4, color=c)
        ax.xaxis_date()
        myFmt = DateFormatter('%h %d %H')
        ax.xaxis.set_major_formatter(myFmt)
        #ax.xaxis.set_major_locator(HourLocator(interval=1))
        plt.yticks(np.arange(len(df.columns)), df.columns)
        labels = ax.get_xticklabels()
        plt.setp(labels, rotation=30, fontsize=10)
        #plt.xlim(gxmin, gxmax)
        plt.ylim(-1, len(df.columns))
        plt.savefig(unit + '-timeline.png')
        plt.clf()
        df.drop('all', 1, inplace=True)

        # sometimes, this becomes "O" for some reason
        df2 = df.groupby(df.index.hour).sum()
        for k in df2.columns:
            df2[k] =  pd.to_timedelta(df2[k])
        (df2.astype('timedelta64[s]')/3600000).plot(kind='bar', stacked=True, width=0.95, title="Average day " + unit,
                    color=sns.color_palette("Set2", len(df.columns)))
        outfile = unit + "-avgday.png"
        plt.xlabel('hour of the day')
        plt.ylabel('accumulated time (hours)')
        plt.savefig(outfile)
        plt.clf()

        df = df.astype('timedelta64[s]')/3600000
        df = df.resample(self.args['resample'], label='left').sum()
        #df = df.ix[1:]
        #v = (np.cumsum(df.sum(axis=1).fillna(0)) == 0).sum()
        #df = df.ix[v:]
        df = make_others(df)  # .dropna(how='all')
        # from IPython.core.debugger import Tracer; Tracer()()
        df.plot(kind='bar', stacked=True, width=0.95, title=unit, color=sns.color_palette("Set2", len(df.columns)))
        formatted_ticks = df.index.map(lambda t: t.strftime('%m/%d %H:%M'))
        plt.gca().set_xticklabels(formatted_ticks)
        outfile = unit + "-hours.png"
        print("Saving to %s..." % outfile)
        plt.savefig(outfile)

        # plt.show(block=True)
        plt.clf()

    def calc_summary(self):
        def updict(d1, d2, activity_times, sub=None):
            if sub is not None:
                if sub not in d1:
                    d1[sub] = {}
                d1 = d1[sub]

            for key, val in d2.items():
                if key not in d1:
                    d1[key] = 0
                d1[key] += val

            if self.need_activity:
                if 'activity' not in d1:
                    d1['activity'] = Period(self.need_activity, time.time())
                d1['activity'].extend(activity_times)

        sumd = {}
        processes = {}
        windows = {}
        timings = []
        keys = Counter()
        for row in self.filter_keys():
            d = {'nr': 1,
                 'keystrokes': len(row.load_timings())}

            if self.need_activity:
                timings = create_times(row)
            if self.need_process:
                updict(processes, d, timings, sub=row.process.name)
            if self.need_window:
                updict(windows, d, timings, sub=self.simplify_windows(row.process.name, row.window.title))
            updict(sumd, d, timings)

            if self.args['key_freqs']:
                keys.update(row.decrypt_keys())

        for click in self.filter_clicks():
            d = {'noscroll_clicks': click.button not in [4, 5],
                 'clicks': 1,
                 'button%d' % click.button: 1,
                 'mousings': click.nrmoves}
            if self.need_activity:
                timings = [time.mktime(click.created_at.timetuple())]
            if self.need_process:
                updict(processes, d, timings, sub=click.process.name)
            if self.need_window:
                updict(windows, d, timings, sub=self.simplify_windows(click.process.name, click.window.title))
            updict(sumd, d, timings)

        self.processes = processes
        self.windows = windows
        self.summary = sumd
        self.click_pie(windows, 'keystrokes')
        #self.click_pie(windows, 'clicks')
        if self.args['key_freqs']:
            self.summary['key_freqs'] = keys

    def simplify_windows(self, klass, win):
        if not hasattr(self, "simplification_rules"):
            fn = os.path.join(self.args['data_dir'], "simplification_rules.txt")
            if not os.path.exists(fn):
                self.simplification_rules = [(r'^(.*)::(.*)$', '\\1')]
            else:
                self.simplification_rules = []
                with open(fn, "r") as f:
                    rules = f.readlines()
                    for rule in rules:
                        if rule.startswith("#"):
                            continue
                        rule = rule.strip()
                        if len(rule) == 0:
                            continue
                        src, dst = rule.split(" --> ")
                        self.simplification_rules.append((re.compile(src), dst))

        name = "%s::%s" % (klass, win)
        new_name = name
        for src, dst in self.simplification_rules:
            m = re.match(src, name)
            if m is None:
                continue
            new_name = re.sub(src, dst, name)
        return new_name

    def show_summary(self):
        print('%d keystrokes in %d key sequences,' % (self.summary.get('keystrokes', 0), self.summary.get('nr', 0)),)
        print('%d clicks (%d excluding scroll),' % (self.summary.get('clicks', 0), self.summary.get('noscroll_clicks', 0)),)
        print('%d mouse movements' % (self.summary.get('mousings', 0)))
        print()

        if self.need_activity:
            act = self.summary.get('activity')

            if act:
                act = act.calc_total()
            else:
                act = 0
            print('Total time active:',)
            print(pretty_seconds(act))
            print()

        if self.args['clicks']:
            print('Mouse clicks:')
            for key, name in BUTTON_MAP:
                print(self.summary.get(key, 0), name)
            print()

        if self.args['key_freqs']:
            print('Key frequencies:')
            for key, val in self.summary['key_freqs'].most_common():
                print(key, val)
            print()

        if self.args['pkeys']:
            print('Processes sorted by keystrokes:')
            pdata = self.processes.items()
            pdata.sort(key=lambda x: x[1].get('keystrokes', 0), reverse=True)
            for name, data in pdata:
                print(name, data.get('keystrokes', 0))
            print()

        if self.args['tkeys']:
            print('Window titles sorted by keystrokes:')
            wdata = self.windows.items()
            wdata.sort(key=lambda x: x[1].get('keystrokes', 0), reverse=True)
            for name, data in wdata:
                print(name, data.get('keystrokes', 0))
            print()

        if self.args['pactive']:
            print('Processes sorted by activity:')
            for p in self.processes.values():
                p['active_time'] = int(p['activity'].calc_total())
            pdata = self.processes.items()
            pdata.sort(key=lambda x: x[1]['active_time'], reverse=True)
            for name, data in pdata:
                print('%s, %s' % (name, pretty_seconds(data['active_time'])))
            print()

        if self.args['tactive']:
            print('Window titles sorted by activity:')
            for w in self.windows.values():
                w['active_time'] = int(w['activity'].calc_total())
            wdata = self.windows.items()
            wdata.sort(key=lambda x: x[1]['active_time'], reverse=True)
            for name, data in wdata:
                print('%s, %s' % (name, pretty_seconds(data['active_time'])))
            print()

        if self.args['periods']:
            if 'activity' in self.summary:
                print('Active periods:')
                for t1, t2 in self.summary['activity'].times:
                    d1 = datetime.datetime.fromtimestamp(t1).replace(microsecond=0)
                    d2 = datetime.datetime.fromtimestamp(t2).replace(microsecond=0)
                    print('%s - %s' % (d1.isoformat(' '), str(d2.time()).split('.')[0]))
            else:
                print('No active periods.')
            print()

        if self.args['ratios']:
            def tryget(prop):
                return float(max(1, self.summary.get(prop, 1)))

            mousings = tryget('mousings')
            clicks = tryget('clicks')
            keys = tryget('keystrokes')
            print('Keys / Clicks: %.1f' % (keys / clicks))
            print('Active seconds / Keys: %.1f' % (act / keys))
            print()
            print('Mouse movements / Keys: %.1f' % (mousings / keys))
            print('Mouse movements / Clicks: %.1f' % (mousings / clicks))
            print()


def parse_config():
    conf_parser = argparse.ArgumentParser(description=__doc__, add_help=False,
                                          formatter_class=argparse.RawDescriptionHelpFormatter)

    conf_parser.add_argument("-c", "--config",
                             help="""Config file with defaults. Command line parameters will override those given in the config file. Options to selfspy goes in the "[Defaults]" section, followed by [argument]=[value] on each line. Options specific to selfstats should be in the "[Selfstats]" section, though "password" and "data-dir" are still read from "[Defaults]".""", metavar="FILE")
    args, remaining_argv = conf_parser.parse_known_args()

    defaults = {}
    if args.config:
        if not os.path.exists(args.config):
            raise EnvironmentError("Config file %s doesn't exist." % args.config)
        config = ConfigParser.SafeConfigParser()
        config.read([args.config])
        defaults = dict(config.items('Defaults') + config.items("Selfstats"))

    parser = argparse.ArgumentParser(description="""Calculate statistics on selfspy data. Per default it will show non-text information that matches the filter. Adding '-s' means also show text. Adding any of the summary options will show those summaries over the given filter instead of the listing. Multiple summary options can be given to print several summaries over the same filter. If you give arguments that need to access text / keystrokes, you will be asked for the decryption password.""", epilog="""See the README file or http://gurgeh.github.com/selfspy for examples.""", parents=[conf_parser])
    parser.set_defaults(**defaults)
    parser.add_argument('-p', '--password', help='Decryption password. Only needed if selfstats needs to access text / keystrokes data. If your database in not encrypted, specify -p="" here. If you don\'t specify a password in the command line arguments or in a config file, and the statistics you ask for require a password, a dialog will pop up asking for the password. If you give your password on the command line, remember that it will most likely be stored in plain text in your shell history.')
    parser.add_argument('-d', '--data-dir', help='Data directory for selfspy, where the database is stored. Remember that Selfspy must have read/write access. Default is %s' % cfg.DATA_DIR, default=cfg.DATA_DIR)

    parser.add_argument('-s', '--showtext', action='store_true', help='Also show the text column. This switch is ignored if at least one of the summary options are used. Requires password.')

    parser.add_argument('-D', '--date', nargs='+', help='Which date to start the listing or summarizing from. If only one argument is given (--date 13) it is interpreted as the closest date in the past on that day. If two arguments are given (--date 03 13) it is interpreted as the closest date in the past on that month and that day, in that order. If three arguments are given (--date 2012 03 13) it is interpreted as YYYY MM DD')
    parser.add_argument('-C', '--clock', type=str, help='Time to start the listing or summarizing from. Given in 24 hour format as --clock 13:25. If no --date is given, interpret the time as today if that results in sometimes in the past, otherwise as yesterday.')

    parser.add_argument('-i', '--id', type=int, help='Which row ID to start the listing or summarizing from. If --date and/or --clock is given, this option is ignored.')

    parser.add_argument('--resample', default='30Min', help='resample interval (how much one bar represents in the bar plot)')

    parser.add_argument('-b', '--back', nargs='+', type=str, help='--back <period> [<unit>] Start the listing or summary this much back in time. Use this as an alternative to --date, --clock and --id. If any of those are given, this option is ignored. <unit> is either "s" (seconds), "m" (minutes), "h" (hours), "d" (days) or "w" (weeks). If no unit is given, it is assumed to be hours.')

    parser.add_argument('-l', '--limit', help='--limit <period> [<unit>]. If the start is given in --date/--clock, the limit is a time period given by <unit>. <unit> is either "s" (seconds), "m" (minutes), "h" (hours), "d" (days) or "w" (weeks). If no unit is given, it is assumed to be hours. If the start is given with --id, limit has no unit and means that the maximum row ID is --id + --limit.', nargs='+', type=str)

    parser.add_argument('-m', '--min-keys', type=int, metavar='nr', help='Only allow entries with at least <nr> keystrokes')

    parser.add_argument('-T', '--title', type=str, metavar='regexp', help='Only allow entries where a search for this <regexp> in the window title matches something. All regular expressions are case insensitive.')
    parser.add_argument('-P', '--process', type=str, metavar='regexp', help='Only allow entries where a search for this <regexp> in the process matches something.')
    parser.add_argument('-B', '--body', type=str, metavar='regexp', help='Only allow entries where a search for this <regexp> in the body matches something. Do not use this filter when summarizing ratios or activity, as it has no effect on mouse clicks. Requires password.')

    parser.add_argument('--clicks', action='store_true', help='Summarize number of mouse button clicks for all buttons.')

    parser.add_argument('--key-freqs', action='store_true', help='Summarize a table of absolute and relative number of keystrokes for each used key during the time period. Requires password.')

    parser.add_argument('--human-readable', action='store_true', help='This modifies the --body entry and honors backspace.')
    parser.add_argument('--active', type=int, metavar='seconds', nargs='?', const=ACTIVE_SECONDS, help='Summarize total time spent active during the period. The optional argument gives how many seconds after each mouse click (including scroll up or down) or keystroke that you are considered active. Default is %d.' % ACTIVE_SECONDS)

    parser.add_argument('--ratios', type=int, metavar='seconds', nargs='?', const=ACTIVE_SECONDS, help='Summarize the ratio between different metrics in the given period. "Clicks" will not include up or down scrolling. The optional argument is the "seconds" cutoff for calculating active use, like --active.')

    parser.add_argument('--periods', type=int, metavar='seconds', nargs='?', const=ACTIVE_SECONDS, help='List active time periods. Optional argument works same as for --active.')

    parser.add_argument('--pactive', type=int, metavar='seconds', nargs='?', const=ACTIVE_SECONDS, help='List processes, sorted by time spent active in them. Optional argument works same as for --active.')
    parser.add_argument('--tactive', type=int, metavar='seconds', nargs='?', const=ACTIVE_SECONDS, help='List window titles, sorted by time spent active in them. Optional argument works same as for --active.')

    parser.add_argument('--pkeys', action='store_true', help='List processes sorted by number of keystrokes.')
    parser.add_argument('--tkeys', action='store_true', help='List window titles sorted by number of keystrokes.')

    return parser.parse_args()


def make_encrypter(password):
    if password == "":
        encrypter = None
    else:
        encrypter = Blowfish.new(hashlib.md5(password).digest(), Blowfish.MODE_ECB)
    return encrypter


def main():
    try:
        args = vars(parse_config())
    except EnvironmentError as e:
        print(str(e))
        sys.exit(1)

    args['data_dir'] = os.path.expanduser(args['data_dir'])

    def check_with_encrypter(password):
        encrypter = make_encrypter(password)
        return check_password.check(args['data_dir'], encrypter, read_only=True)

    ss = Selfstats(os.path.join(args['data_dir'], cfg.DBNAME), args)

    if ss.need_text or ss.need_keys:
        if args['password'] is None:
            args['password'] = get_password(verify=check_with_encrypter)

        models.ENCRYPTER = make_encrypter(args['password'])

        if not check_password.check(args['data_dir'], models.ENCRYPTER, read_only=True):
            print('Password failed')
            sys.exit(1)

    ss.do()


if __name__ == '__main__':
    main()