download aerial imagery from Geoportal TH

dl.py

import requests
from urllib.request import *
import sys
import os.path

def getDetails(type, id):
    url = 'http://geoportal.geoportal-th.de/gaialight-th/_apps/dladownload/_ajax/details.php'
    params = dict(
        type = type,
        id = id
    )

    resp = requests.get(url=url, params=params)
    data = resp.json()
    assert data['success']
    return data['object']

def download(type, id, localfilepath):
    if os.path.isfile(localfilepath):
        sys.stdout.write('Skipping %s\n' % localfilepath)
        return

    sys.stdout.write('Downloading %s\n' % localfilepath)
    url = 'http://geoportal.geoportal-th.de/gaialight-th/_apps/dladownload/download.php'
    params = dict(
        type = type,
        id = id
    )
    urlretrieve(url + '?type=%s&id=%s' % (type, id), localfilepath, reporthook=dlProgress)
    sys.stdout.write('\n')

def dlProgress(count, blockSize, totalSize):
    percent = int(count * blockSize * 100 / totalSize)
    sys.stdout.write("\rDownloading...%d%%" % percent)
    sys.stdout.flush()

LLx = 622735.64705765
LLy = 5641515.8748382
URx = 624180.40247649
URy = 5642599.4414024
crs = 'EPSG%3A25832'
minDate = '1943-01-01T00%3A00%3A00.000Z'
maxDate = '1946-12-01T00%3A00%3A00.000Z'

url = 'http://geoportal.geoportal-th.de/gaialight-th/_apps/dladownload/_ajax/overview.php'
url += '?bbox%5B%5D={0}&bbox%5B%5D={1}&bbox%5B%5D={2}&bbox%5B%5D={3}&crs={4}&minDate={5}&maxDate={6}&type%5B%5D=lb&type%5B%5D=op'.format(LLx, LLy, URx, URy, crs, minDate, maxDate)

resp = requests.get(url=url)
data = resp.json()

assert data['success']
result = data["result"]

crs = result['crs']['name']

features = result['features']
for feature in features:
    geometry = feature['geometry']
    properties = feature['properties']
    # details = getDetails(properties['type'], properties['gid'])
    download(properties['type'], properties['gid'], r'%s_%s_pan.zip' % (properties['bildflugnr'], properties['bildnr']))