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ExportFachmannInfo.py
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ExportFachmannInfo.py
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import os
import time
import json
from threading import Lock
from timeit import default_timer as timer
from selenium import webdriver
from selenium.common.exceptions import TimeoutException, WebDriverException
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait
debug = False
MAP_METRICS = {
"Zeitstempel": {"name": "timestamp", "type": "info"},
"Außentemperatur Aktuell": {"name": "aussentemperatur_aktuell", "type": "gauge", "strip": len(" °C")},
"Warmwassertemperatur Aktuell": {"name": "warmwassertemperatur_aktuell", "type": "gauge", "strip": len(" °C")},
}
chrome_options = Options()
chrome_options.add_argument("--headless")
chrome_options.add_argument("--disable-gpu")
def refresh_page(driver):
if (debug):
print("Refreshing page...")
WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.ID, "ctl00_DeviceContextControl1_RefreshDeviceDataButton"))
).click()
wait_until_page_loaded(driver)
def login_and_load_fachmann_page(driver):
wemportal_user = "YOUR_USERNAME"
wemportal_password = "YOUR_PASSWORD"
fachmann_password = "11"
driver.get("https://www.wemportal.com/Web/")
if (debug):
print("Logging in...")
driver.find_element(By.ID, "ctl00_content_tbxUserName").click()
driver.find_element(By.ID, "ctl00_content_tbxUserName").send_keys(wemportal_user)
driver.find_element(By.ID, "ctl00_content_tbxPassword").send_keys(wemportal_password)
driver.find_element(By.ID, "ctl00_content_btnLogin").click()
if (debug):
print("Go to Fachmann info page...")
driver.find_element(By.CSS_SELECTOR, "#ctl00_RMTopMenu > ul > li.rmItem.rmFirst > a > span").click()
driver.find_element(By.CSS_SELECTOR, "#ctl00_SubMenuControl1_subMenu > ul > li:nth-child(4) > a > span").click()
driver.switch_to.frame(0)
WebDriverWait(driver, 10).until(
EC.presence_of_element_located((By.ID, "ctl00_DialogContent_tbxSecurityCode"))
).click()
driver.find_element(By.ID, "ctl00_DialogContent_tbxSecurityCode").send_keys(fachmann_password)
driver.find_element(By.ID, "ctl00_DialogContent_BtnSave").click()
driver.switch_to.default_content()
def wait_until_page_loaded(driver):
timeout = time.time() + 60*2 # 2 minutes from now
while True:
refresh_button_span = driver.find_element(By.ID, "ctl00_DeviceContextControl1_RefreshDeviceDataButton")
if (debug):
print("Waiting for page loaded...".format(refresh_button_span.id), end="")
start = timer()
try:
WebDriverWait(driver, 8, poll_frequency=0.2).until(
EC.staleness_of(refresh_button_span)
)
if (debug):
print("took {}".format(timer() - start))
except TimeoutException:
if (debug):
print("timed out")
break
if (time.time() > timeout):
if (debug):
print("Data got not loaded within 2 minutes, stopping it!")
break
if (debug):
print("Page loaded")
def parse_page(driver):
timestamp = driver.find_element(By.ID, "ctl00_DeviceContextControl1_lblDeviceLastDataUpdateInfo").text
result = {"Zeitstempel": timestamp}
if (debug):
print("Parsing page with timestamp {}".format(timestamp))
map_id_to_name = {}
for element in driver.find_elements(By.CLASS_NAME, "simpleDataName"):
stripped_id = element.get_attribute("id")[:-8]
value = element.text
map_id_to_name[stripped_id] = value
for element in driver.find_elements(By.CLASS_NAME, "simpleDataValue"):
stripped_id = element.get_attribute("id")[:-9]
value = element.text.replace(",", ".")
result[map_id_to_name[stripped_id]] = value
if (debug):
print("Found {} data points".format(len(result)))
return result
def parse_value(value, strip=None):
if value == "Aus" or value == "--":
return 0
elif strip is not None:
return float(value[:-int(strip)])
else:
return float(value)
def collect_metrics_from_page(driver):
result = parse_page(driver)
data = {}
for key, value in result.items():
metric = MAP_METRICS.get(key)
if metric is not None:
name = metric["name"]
t = metric.get("type", "gauge")
if t is "gauge":
value = parse_value(value, metric.get("strip"))
data[name] = value
if t is "counter":
value = parse_value(value, metric.get("strip"))
data[name] = value
if t is "info":
data[name] = value
return json.dumps(data)
class CustomCollector(object):
def __init__(self):
self.lock = Lock()
self.driver = None
self.refreshed = False
self.collections_done = 0
self.start_driver()
def collect(self):
self.lock.acquire()
try:
return self.collect_metrics()
finally:
self.lock.release()
def collect_metrics(self, retries_left=3):
try:
self.ensure_driver_restarted()
self.ensure_refreshed()
metrics = collect_metrics_from_page(self.driver)
if (debug):
print("Exporting {} metrics".format(len(metrics)))
self.collections_done = self.collections_done + 1
return metrics
except WebDriverException as e:
if (debug):
print("Encountered web driver exception:")
print(e)
if retries_left == 0:
if (debug):
print("No retries left, bailing out")
raise e
if (debug):
print("Restarting driver... (retries_left={})".format(retries_left))
self.restart_driver()
return self.collect_metrics(retries_left - 1)
finally:
self.refreshed = False
def ensure_driver_restarted(self):
if self.collections_done <= 200:
return
try:
if (debug):
print("Restarting driver as {} collections done".format(self.collections_done))
self.restart_driver()
finally:
self.collections_done = 0
def ensure_refreshed(self):
if not self.refreshed:
refresh_page(self.driver)
self.refreshed = True
def restart_driver(self):
self.driver.quit()
self.start_driver()
def start_driver(self):
self.driver = webdriver.Chrome(options=chrome_options)
login_and_load_fachmann_page(self.driver)
wait_until_page_loaded(self.driver)
self.refreshed = True
def __del__(self):
if (debug):
print("Shutting down...")
try:
self.driver.quit()
except Exception:
pass
finally:
os.system('pkill chromedriver')
if __name__ == "__main__":
customcollector = CustomCollector()
metrics = customcollector.collect_metrics()
print(metrics)