Proof of concept : wireless tethering on the E-M1, in camera control mode, now with smarter polling

cameraCtrlTether2.py

# -*- coding: utf-8 -*-


from urllib import urlretrieve
from urllib2 import urlopen
import re
import time

def getInitialData():
    data = []
    page = urlopen('http://192.168.0.10/DCIM').read()
    m = re.findall('(wlansd.*DCIM.*;)',page)
    for entry in m:
        folder = entry.split(',')[1]
        page = urlopen('http://192.168.0.10/DCIM/'+folder).read()
        sub = re.findall('wlansd.*DCIM.*;',page)
        for f in sub:
            data.append(f)
    return data

def checkNew(data):
    page = urlopen('http://192.168.0.10/DCIM').read()
    m = re.findall('(wlansd.*DCIM.*;)',page)
    new = []
    for entry in m:
        folder = entry.split(',')[1]
        page = urlopen('http://192.168.0.10/DCIM/'+folder).read()
        sub = re.findall('wlansd.*DCIM.*;',page)
        for f in sub:
            if f not in data:
                new.append(f)
    return new

startData = getInitialData()

shutter = urlopen('http://192.168.0.10/switch_cammode.cgi?mode=shutter').read()

while True:
    time.sleep(5)
    newData = checkNew(startData)
    if newData <> []:
        print('Getting ' + str(len(newData)) + ' new images')
        for item in newData:
            startData.append(item)
            img = item.split(',')[1]
            folder = item.split(',')[0].split('"')[1]
            url = 'http://192.168.0.10' + folder + '/' + img
            print 'Retrieving ' + url
            urlretrieve(url,img)