163 lines
6.5 KiB
Python
163 lines
6.5 KiB
Python
import os
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import time
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import json
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import logging
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from selenium import webdriver
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from selenium.webdriver.chrome.options import Options, ChromeOptions
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from selenium.webdriver.chrome.service import Service
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from selenium.webdriver.common.by import By
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from selenium.webdriver.support.ui import WebDriverWait
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from selenium.webdriver.support import expected_conditions as EC
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from config import TempConfig # Import deiner Konfigurationsklasse
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# Logging konfigurieren
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LOG_FORMAT = '%(asctime)s - %(levelname)s - %(name)s - %(message)s'
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logging.basicConfig(level=logging.INFO, format=LOG_FORMAT)
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logger = logging.getLogger(__name__)
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class DealfrontScraper:
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def __init__(self):
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logger.info("Initialisiere den DealfrontScraper...")
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chrome_options = ChromeOptions()
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prefs = {"profile.managed_default_content_settings.images": 2}
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chrome_options.add_experimental_option("prefs", prefs)
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chrome_options.add_argument("--headless")
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chrome_options.add_argument("--no-sandbox")
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chrome_options.add_argument("--disable-dev-shm-usage")
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chrome_options.add_argument("--window-size=1920,1080")
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service = Service(executable_path=TempConfig.CHROMEDRIVER_PATH)
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try:
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self.driver = webdriver.Chrome(service=service, options=chrome_options)
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except Exception:
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logger.critical("WebDriver konnte nicht initialisiert werden.", exc_info=True)
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raise
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self.wait = WebDriverWait(self.driver, TempConfig.DEFAULT_TIMEOUT)
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self.username, self.password = self._load_credentials()
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logger.info("WebDriver erfolgreich initialisiert.")
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def _load_credentials(self):
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try:
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with open(TempConfig.DEALFRONT_CREDENTIALS_FILE, 'r', encoding='utf-8') as f:
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creds = json.load(f)
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return creds.get('username'), creds.get('password')
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except Exception as e:
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logger.error(f"Credentials-Datei konnte nicht geladen werden: {e}")
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raise
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def _save_debug_artifacts(self):
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try:
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os.makedirs(TempConfig.OUTPUT_DIR, exist_ok=True)
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ts = time.strftime("%Y%m%d-%H%M%S")
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png = os.path.join(TempConfig.OUTPUT_DIR, f"error_{ts}.png")
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html = os.path.join(TempConfig.OUTPUT_DIR, f"error_{ts}.html")
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self.driver.save_screenshot(png)
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logger.error(f"Screenshot '{png}' gespeichert.")
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with open(html, 'w', encoding='utf-8') as f:
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f.write(self.driver.page_source)
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logger.error(f"HTML-Source '{html}' gespeichert.")
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except Exception as e:
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logger.error(f"Debug-Artefakte konnten nicht gespeichert werden: {e}")
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def login_and_find_list(self, search_name):
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# Login
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logger.info(f"Navigiere zur Login-Seite: {TempConfig.DEALFRONT_LOGIN_URL}")
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self.driver.get(TempConfig.DEALFRONT_LOGIN_URL)
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self.wait.until(EC.visibility_of_element_located((By.NAME, 'email'))).send_keys(self.username)
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self.driver.find_element(By.CSS_SELECTOR, "input[type='password']").send_keys(self.password)
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self.driver.find_element(By.XPATH, "//button[normalize-space()='Log in']").click()
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logger.info("Login gesendet.")
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# 'Prospects finden'
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tile = self.wait.until(
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EC.element_to_be_clickable((By.CSS_SELECTOR, "a[data-test-target-product-tile]"))
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)
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tile.click()
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logger.info("'Prospects finden' geklickt.")
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# Vordefinierte Suche auswählen
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sel = (By.XPATH, f"//div[contains(@class,'truncate') and normalize-space()='{search_name}']")
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item = self.wait.until(EC.element_to_be_clickable(sel))
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item.click()
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logger.info(f"Suche '{search_name}' geladen.")
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def extract_current_page_results(self):
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# 1) Kurzer Implicit-Wait
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self.driver.implicitly_wait(1)
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# 2) Warten auf erstes Daten-Element
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first_locator = (By.CSS_SELECTOR, ".sticky-column a.t-highlight-text")
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self.wait.until(EC.visibility_of_element_located(first_locator))
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logger.info("Extrahiere aktuelle Seite...")
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results = []
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# 3) Auf mindestens eine Zeile warten
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rows_sel = (By.CSS_SELECTOR, "table#t-result-table tbody tr[id]")
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self.wait.until(EC.presence_of_all_elements_located(rows_sel))
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rows = self.driver.find_elements(*rows_sel)
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logger.info(f"{len(rows)} Zeilen gefunden.")
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# 4) Namen & Websites extrahieren
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for i, row in enumerate(rows, 1):
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names = row.find_elements(By.CSS_SELECTOR, ".sticky-column a.t-highlight-text")
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if not names:
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logger.warning(f"Zeile {i}: Kein Name gefunden.")
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continue
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name_elem = names[0]
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name = (name_elem.get_attribute('title') or name_elem.text).strip()
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webs = row.find_elements(By.CSS_SELECTOR, "td:nth-of-type(3) a")
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if webs:
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web = webs[0].text.strip()
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else:
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cell = row.find_elements(By.CSS_SELECTOR, "td:nth-of-type(3)")
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web = cell[0].text.strip() if cell else ''
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results.append({'name': name, 'website': web})
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logger.info(f"Extraktion abgeschlossen: {len(results)} Firmen.")
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# Implicit-Wait reset
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self.driver.implicitly_wait(TempConfig.IMPLICIT_WAIT)
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return results
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def click_next_page(self) -> bool:
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btns = self.driver.find_elements(By.CSS_SELECTOR, "nav.eb-pagination a.eb-pagination-button")
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if not btns:
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return False
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nxt = btns[-1]
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if not nxt.is_enabled() or 'disabled' in nxt.get_attribute('class'):
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return False
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curr = self.driver.find_element(
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By.CSS_SELECTOR, "nav.eb-pagination a.eb-pagination-button.active"
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).text
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nxt.click()
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self.wait.until(
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lambda d: d.find_element(
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By.CSS_SELECTOR, "nav.eb-pagination a.eb-pagination-button.active"
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).text != curr
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)
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return True
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def run(self, search_name):
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try:
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self.login_and_find_list(search_name)
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all_res = []
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while True:
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page_res = self.extract_current_page_results()
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all_res.extend(page_res)
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if not self.click_next_page():
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break
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return all_res
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finally:
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self.driver.quit()
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if __name__ == '__main__':
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scraper = DealfrontScraper()
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data = scraper.run('Facility Management')
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for d in data:
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print(d)
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