view web/templog.py @ 480:6d464ac4ba3c

prototype
author Matt Johnston <matt@ucc.asn.au>
date Mon, 03 Feb 2014 00:08:59 +0800
parents 5b9dc87c988f
children e731c0d30b09
line wrap: on
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#!/usr/bin/env python2.7

import binascii
import json
import hmac
import zlib
from datetime import datetime, timedelta
import time
import urllib
import sys

import bottle
from bottle import route, request, response

import config
import log

DATE_FORMAT = '%Y%m%d-%H.%M'
ZOOM_SCALE = 2.0

@route('/update', method='post')
def update():
    js_enc = request.forms.data
    mac = request.forms.hmac

    if hmac.new(config.HMAC_KEY, js_enc).hexdigest() != mac:
        raise bottle.HTTPError(code = 403, output = "Bad key")

    js = zlib.decompress(binascii.a2b_base64(js_enc))

    params = json.loads(js)

    log.parse(params)

    return "OK"

@route('/graph.png')
def graph():
    length_minutes = int(request.query.length)
    end = datetime.strptime(request.query.end, DATE_FORMAT)
    start = end - timedelta(minutes=length_minutes)

    response.set_header('Content-Type', 'image/png')
    start_epoch = time.mktime(start.timetuple())
    return log.graph_png(start_epoch, length_minutes * 60)

@route('/')
def top():

    minutes = int(request.query.get('length', 26*60))

    if 'end' in request.query:
        end = datetime.strptime(request.query.end, DATE_FORMAT)
    else:
        end = datetime.now()

    if 'zoom' in request.query:
        orig_start = end - timedelta(minutes=minutes)
        orig_end = end
        xpos = int(request.query.x)
        xpos -= config.GRAPH_LEFT_MARGIN * config.ZOOM

        if xpos >= 0 and xpos < config.GRAPH_WIDTH * config.ZOOM:
            click_time = orig_start \
                + timedelta(minutes=(float(xpos) / (config.GRAPH_WIDTH * config.ZOOM)) * minutes)
            minutes = int(minutes / ZOOM_SCALE)

            end = click_time + timedelta(minutes=minutes/2)
        else:
            # zoom out
            minutes = int(minutes*ZOOM_SCALE)
            end += timedelta(minutes=minutes/2)

    if end > datetime.now():
        end = datetime.now()
        
    request.query.replace('length', minutes)
    request.query.replace('end', end.strftime(DATE_FORMAT))

    urlparams = urllib.urlencode(request.query)
    return bottle.template('top', urlparams=urlparams,
                    end = end.strftime(DATE_FORMAT),
                    length = minutes)

@route('/debug')
def debuglog():
    response.set_header('Content-Type', 'text/plain')
    return log.tail_debug_log()

def main():
    #bottle.debug(True)
    #bottle.run(reloader=True)
    bottle.run(server='cgi', reloader=True)
    #bottle.run(port=9999, reloader=True)

if __name__ == '__main__':
    main()