toxygen_wrapper/wrapper_tests/support_http.py

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# -*- mode: python; indent-tabs-mode: nil; py-indent-offset: 4; coding: utf-8 -*-
import os
import sys
import logging
from io import BytesIO
import urllib
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import traceback
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global LOG
LOG = logging.getLogger('app.'+'ts')
try:
import pycurl
except ImportError:
pycurl = None
try:
import requests
except ImportError:
requests = None
lNO_PROXY = ['localhost', '127.0.0.1']
CONNECT_TIMEOUT = 20.0
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def bAreWeConnected():
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# FixMe: Linux only
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sFile = f"/proc/{os.getpid()}/net/route"
if not os.path.isfile(sFile): return None
i = 0
for elt in open(sFile, "r").readlines():
if elt.startswith('Iface'): continue
if elt.startswith('lo'): continue
i += 1
return i > 0
def pick_up_proxy_from_environ():
retval = dict()
if os.environ.get('socks_proxy', ''):
# socks_proxy takes precedence over https/http
proxy = os.environ.get('socks_proxy', '')
i = proxy.find('//')
if i >= 0: proxy = proxy[i+2:]
retval['proxy_host'] = proxy.split(':')[0]
retval['proxy_port'] = proxy.split(':')[-1]
retval['proxy_type'] = 2
retval['udp_enabled'] = False
elif os.environ.get('https_proxy', ''):
# https takes precedence over http
proxy = os.environ.get('https_proxy', '')
i = proxy.find('//')
if i >= 0: proxy = proxy[i+2:]
retval['proxy_host'] = proxy.split(':')[0]
retval['proxy_port'] = proxy.split(':')[-1]
retval['proxy_type'] = 1
retval['udp_enabled'] = False
elif os.environ.get('http_proxy', ''):
proxy = os.environ.get('http_proxy', '')
i = proxy.find('//')
if i >= 0: proxy = proxy[i+2:]
retval['proxy_host'] = proxy.split(':')[0]
retval['proxy_port'] = proxy.split(':')[-1]
retval['proxy_type'] = 1
retval['udp_enabled'] = False
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else:
retval['proxy_host'] = ''
retval['proxy_port'] = ''
retval['proxy_type'] = 0
retval['udp_enabled'] = True
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return retval
def download_url(url, settings=None):
if not bAreWeConnected(): return ''
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if settings is None:
settings = pick_up_proxy_from_environ()
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if pycurl:
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LOG.debug('Downloading with pycurl: ' + str(url))
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buffer = BytesIO()
c = pycurl.Curl()
c.setopt(c.URL, url)
c.setopt(c.WRITEDATA, buffer)
# Follow redirect.
c.setopt(c.FOLLOWLOCATION, True)
# cookie jar
cjar = os.path.join(os.environ['HOME'], '.local', 'jar.cookie')
if os.path.isfile(cjar):
c.setopt(c.COOKIEFILE, cjar)
# LARGS+=( --cookie-jar --junk-session-cookies )
#? c.setopt(c.ALTSVC_CTRL, 16)
c.setopt(c.NOPROXY, ','.join(lNO_PROXY))
#? c.setopt(c.CAINFO, certifi.where())
if settings['proxy_type'] == 2 and settings['proxy_host']:
socks_proxy = 'socks5h://'+settings['proxy_host']+':'+str(settings['proxy_port'])
settings['udp_enabled'] = False
c.setopt(c.PROXY, socks_proxy)
c.setopt(c.PROXYTYPE, pycurl.PROXYTYPE_SOCKS5_HOSTNAME)
elif settings['proxy_type'] == 1 and settings['proxy_host']:
https_proxy = 'https://'+settings['proxy_host']+':'+str(settings['proxy_port'])
c.setopt(c.PROXY, https_proxy)
elif settings['proxy_type'] == 1 and settings['proxy_host']:
http_proxy = 'http://'+settings['proxy_host']+':'+str(settings['proxy_port'])
c.setopt(c.PROXY, http_proxy)
c.setopt(c.PROTOCOLS, c.PROTO_HTTPS)
try:
c.perform()
c.close()
#? assert c.getinfo(c.RESPONSE_CODE) < 300
result = buffer.getvalue()
# Body is a byte string.
LOG.info('nodes loaded with pycurl: ' + str(url))
return result
except Exception as ex:
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LOG.error('TOX Downloading error with pycurl: ' + str(ex))
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LOG.error('\n' + traceback.format_exc())
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# drop through
if requests:
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LOG.debug('Downloading with requests: ' + str(url))
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try:
headers = dict()
headers['Content-Type'] = 'application/json'
proxies = dict()
if settings['proxy_type'] == 2 and settings['proxy_host']:
socks_proxy = 'socks5://'+settings['proxy_host']+':'+str(settings['proxy_port'])
settings['udp_enabled'] = False
proxies['https'] = socks_proxy
elif settings['proxy_type'] == 1 and settings['proxy_host']:
https_proxy = 'https://'+settings['proxy_host']+':'+str(settings['proxy_port'])
proxies['https'] = https_proxy
elif settings['proxy_type'] == 1 and settings['proxy_host']:
http_proxy = 'http://'+settings['proxy_host']+':'+str(settings['proxy_port'])
proxies['http'] = http_proxy
req = requests.get(url,
headers=headers,
proxies=proxies,
timeout=CONNECT_TIMEOUT)
# max_retries=3
assert req.status_code < 300
result = req.content
LOG.info('nodes loaded with requests: ' + str(url))
return result
except Exception as ex:
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LOG.error('TOX Downloading error with requests: ' + str(ex))
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# drop through
if not settings['proxy_type']: # no proxy
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LOG.debug('Downloading with urllib no proxy: ' + str(url))
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try:
req = urllib.request.Request(url)
req.add_header('Content-Type', 'application/json')
response = urllib.request.urlopen(req)
result = response.read()
LOG.info('nodes loaded with no proxy: ' + str(url))
return result
except Exception as ex:
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LOG.error('TOX Downloading ' + str(ex))
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return ''
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return ''
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