linkedin fix delays (#79)

pull/80/head
Cullen Watson 2024-01-09 19:32:51 -06:00 committed by GitHub
parent aeb93b99f5
commit 22870438c7
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2 changed files with 50 additions and 48 deletions

View File

@ -4,6 +4,7 @@ jobspy.scrapers.linkedin
This module contains routines to scrape LinkedIn.
"""
import random
from typing import Optional
from datetime import datetime
@ -16,14 +17,14 @@ from threading import Lock
from urllib.parse import urlparse, urlunparse
from .. import Scraper, ScraperInput, Site
from ..utils import count_urgent_words, extract_emails_from_text, get_enum_from_job_type, currency_parser
from ..exceptions import LinkedInException
from ..utils import create_session
from ...jobs import JobPost, Location, JobResponse, JobType, Country, Compensation
from ..utils import count_urgent_words, extract_emails_from_text, get_enum_from_job_type, currency_parser
class LinkedInScraper(Scraper):
MAX_RETRIES = 3
DELAY = 10
DELAY = 3
def __init__(self, proxy: Optional[str] = None):
"""
@ -57,6 +58,7 @@ class LinkedInScraper(Scraper):
return mapping.get(job_type_enum, "")
while len(job_list) < scraper_input.results_wanted and page < 1000:
session = create_session(is_tls=False, has_retry=True, delay=5)
params = {
"keywords": scraper_input.search_term,
"location": scraper_input.location,
@ -71,40 +73,23 @@ class LinkedInScraper(Scraper):
}
params = {k: v for k, v in params.items() if v is not None}
retries = 0
while retries < self.MAX_RETRIES:
try:
response = requests.get(
f"{self.url}/jobs-guest/jobs/api/seeMoreJobPostings/search?",
params=params,
allow_redirects=True,
proxies=self.proxy,
timeout=10,
)
response.raise_for_status()
break
except requests.HTTPError as e:
if hasattr(e, "response") and e.response is not None:
if e.response.status_code in (429, 502):
time.sleep(self.DELAY)
retries += 1
continue
else:
raise LinkedInException(
f"bad response status code: {e.response.status_code}"
)
else:
raise
except ProxyError as e:
raise LinkedInException("bad proxy")
except Exception as e:
raise LinkedInException(str(e))
else:
# Raise an exception if the maximum number of retries is reached
raise LinkedInException(
"Max retries reached, failed to get a valid response"
try:
response = session.get(
f"{self.url}/jobs-guest/jobs/api/seeMoreJobPostings/search?",
params=params,
allow_redirects=True,
proxies=self.proxy,
headers=self.headers(),
timeout=10,
)
response.raise_for_status()
except requests.HTTPError as e:
raise LinkedInException(f"bad response status code: {e.response.status_code}")
except ProxyError as e:
raise LinkedInException("bad proxy")
except Exception as e:
raise LinkedInException(str(e))
soup = BeautifulSoup(response.text, "html.parser")
@ -130,6 +115,7 @@ class LinkedInScraper(Scraper):
raise LinkedInException("Exception occurred while processing jobs")
page += 25
time.sleep(random.uniform(LinkedInScraper.DELAY, LinkedInScraper.DELAY + 2))
job_list = job_list[: scraper_input.results_wanted]
return JobResponse(jobs=job_list)
@ -181,22 +167,22 @@ class LinkedInScraper(Scraper):
benefits_tag = job_card.find("span", class_="result-benefits__text")
benefits = " ".join(benefits_tag.get_text().split()) if benefits_tag else None
description, job_type = self.get_job_description(job_url)
# description, job_type = None, []
# removed to speed up scraping
# description, job_type = self.get_job_description(job_url)
return JobPost(
title=title,
description=description,
company_name=company,
company_url=company_url,
location=location,
date_posted=date_posted,
job_url=job_url,
job_type=job_type,
compensation=compensation,
benefits=benefits,
emails=extract_emails_from_text(description) if description else None,
num_urgent_words=count_urgent_words(description) if description else None,
# job_type=job_type,
# description=description,
# emails=extract_emails_from_text(description) if description else None,
# num_urgent_words=count_urgent_words(description) if description else None,
)
def get_job_description(
@ -208,12 +194,10 @@ class LinkedInScraper(Scraper):
:return: description or None
"""
try:
response = requests.get(job_page_url, timeout=5, proxies=self.proxy)
session = create_session(is_tls=False, has_retry=True)
response = session.get(job_page_url, timeout=5, proxies=self.proxy)
response.raise_for_status()
except requests.HTTPError as e:
if hasattr(e, "response") and e.response is not None:
if e.response.status_code in (429, 502):
time.sleep(self.DELAY)
return None, None
except Exception as e:
return None, None
@ -287,3 +271,21 @@ class LinkedInScraper(Scraper):
)
return location
@staticmethod
def headers() -> dict:
return {
'authority': 'www.linkedin.com',
'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7',
'accept-language': 'en-US,en;q=0.9',
'cache-control': 'max-age=0',
'sec-ch-ua': '"Not_A Brand";v="8", "Chromium";v="120", "Google Chrome";v="120"',
# 'sec-ch-ua-mobile': '?0',
# 'sec-ch-ua-platform': '"macOS"',
# 'sec-fetch-dest': 'document',
# 'sec-fetch-mode': 'navigate',
# 'sec-fetch-site': 'none',
# 'sec-fetch-user': '?1',
'upgrade-insecure-requests': '1',
'user-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
}

View File

@ -29,7 +29,7 @@ def extract_emails_from_text(text: str) -> list[str] | None:
return email_regex.findall(text)
def create_session(proxy: dict | None = None, is_tls: bool = True, has_retry: bool = False):
def create_session(proxy: dict | None = None, is_tls: bool = True, has_retry: bool = False, delay: int = 1) -> requests.Session:
"""
Creates a requests session with optional tls, proxy, and retry settings.
@ -51,7 +51,7 @@ def create_session(proxy: dict | None = None, is_tls: bool = True, has_retry: bo
connect=3,
status=3,
status_forcelist=[500, 502, 503, 504, 429],
backoff_factor=1)
backoff_factor=delay)
adapter = HTTPAdapter(max_retries=retries)
session.mount('http://', adapter)