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import re, signal, traceback, urllib.error, urllib.parse
import json as _json
import bs4, requests
USER_AGENT = ("Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 "
"(KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36")
REGEX_HTTP = re.compile("https?://", re.I)
RESPONSE_MAX = (1024*1024)*100
class HTTPException:
pass
class HTTPTimeoutException(HTTPException):
pass
class HTTPParsingException(HTTPException):
pass
def throw_timeout():
raise HTTPTimeoutException()
def get_url(url, method="GET", get_params={}, post_data=None, headers={},
json_data=None, code=False, json=False, soup=False, parser="lxml"):
if not urllib.parse.urlparse(url).scheme:
url = "http://%s" % url
if not "Accept-Language" in headers:
headers["Accept-Language"] = "en-GB"
if not "User-Agent" in headers:
headers["User-Agent"] = USER_AGENT
signal.signal(signal.SIGALRM, throw_timeout)
signal.alarm(5)
try:
response = requests.request(
method.upper(),
url,
headers=headers,
params=get_params,
data=post_data,
json=json_data,
stream=True
)
response_content = response.raw.read(RESPONSE_MAX, decode_content=True)
except TimeoutError:
raise HTTPTimeoutException()
finally:
signal.signal(signal.SIGALRM, signal.SIG_IGN)
if soup:
soup = bs4.BeautifulSoup(response_content, parser)
if code:
return response.code, soup
return soup
data = response_content.decode(response.encoding)
if json and data:
try:
data = _json.loads(data)
except _json.decoder.JSONDecodeError as e:
raise HTTPParsingException(str(e))
if code:
return response.status_code, data
else:
return data
def strip_html(s):
return bs4.BeautifulSoup(s, "lxml").get_text()
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