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fetch_ips.py
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fetch_ips.py
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#!/usr/bin/env python
# -*- coding:utf-8 -*-
#
# Author : XueWeiHan
# E-mail : 595666367@qq.com
# Date : 2020-05-19 15:27
# Desc : 获取最新的 GitHub 相关域名对应 IP
import os
import re
import json
from typing import Any, Optional
from datetime import datetime, timezone, timedelta
from pythonping import ping
from requests_html import HTMLSession
from retry import retry
GITHUB_URLS = [
'alive.github.com', 'api.github.com', 'assets-cdn.github.com',
'avatars.githubusercontent.com', 'avatars0.githubusercontent.com',
'avatars1.githubusercontent.com', 'avatars2.githubusercontent.com',
'avatars3.githubusercontent.com', 'avatars4.githubusercontent.com',
'avatars5.githubusercontent.com', 'camo.githubusercontent.com',
'central.github.com', 'cloud.githubusercontent.com', 'codeload.github.com',
'collector.github.com', 'desktop.githubusercontent.com',
'favicons.githubusercontent.com', 'gist.github.com',
'github-cloud.s3.amazonaws.com', 'github-com.s3.amazonaws.com',
'github-production-release-asset-2e65be.s3.amazonaws.com',
'github-production-repository-file-5c1aeb.s3.amazonaws.com',
'github-production-user-asset-6210df.s3.amazonaws.com', 'github.blog',
'github.com', 'github.community', 'github.githubassets.com',
'github.global.ssl.fastly.net', 'github.io', 'github.map.fastly.net',
'githubstatus.com', 'live.github.com', 'media.githubusercontent.com',
'objects.githubusercontent.com', 'pipelines.actions.githubusercontent.com',
'raw.githubusercontent.com', 'user-images.githubusercontent.com',
'vscode.dev', 'education.github.com'
]
HOSTS_TEMPLATE = """# GitHub520 Host Start
{content}
# Update time: {update_time}
# Update url: https://raw.hellogithub.com/hosts
# Star me: https://github.com/521xueweihan/GitHub520
# GitHub520 Host End\n"""
def write_file(hosts_content: str, update_time: str) -> bool:
output_doc_file_path = os.path.join(os.path.dirname(__file__), "README.md")
template_path = os.path.join(os.path.dirname(__file__),
"README_template.md")
write_host_file(hosts_content)
if os.path.exists(output_doc_file_path):
with open(output_doc_file_path, "r") as old_readme_fb:
old_content = old_readme_fb.read()
if old_content:
old_hosts = old_content.split("```bash")[1].split("```")[0].strip()
old_hosts = old_hosts.split("# Update time:")[0].strip()
hosts_content_hosts = hosts_content.split("# Update time:")[
0].strip()
if old_hosts == hosts_content_hosts:
print("host not change")
return False
with open(template_path, "r") as temp_fb:
template_str = temp_fb.read()
hosts_content = template_str.format(hosts_str=hosts_content,
update_time=update_time)
with open(output_doc_file_path, "w") as output_fb:
output_fb.write(hosts_content)
return True
def write_host_file(hosts_content: str) -> None:
output_file_path = os.path.join(os.path.dirname(__file__), 'hosts')
with open(output_file_path, "w") as output_fb:
output_fb.write(hosts_content)
def write_json_file(hosts_list: list) -> None:
output_file_path = os.path.join(os.path.dirname(__file__), 'hosts.json')
with open(output_file_path, "w") as output_fb:
json.dump(hosts_list, output_fb)
def get_best_ip(ip_list: list) -> str:
ping_timeout = 2
best_ip = ''
min_ms = ping_timeout * 1000
for ip in ip_list:
ping_result = ping(ip, timeout=ping_timeout)
print(ping_result.rtt_avg_ms)
if ping_result.rtt_avg_ms == ping_timeout * 1000:
# 超时认为 IP 失效
continue
else:
if ping_result.rtt_avg_ms < min_ms:
min_ms = ping_result.rtt_avg_ms
best_ip = ip
return best_ip
@retry(tries=3)
def get_json(session: Any) -> Optional[list]:
url = 'https://raw.hellogithub.com/hosts.json'
try:
rs = session.get(url)
data = json.loads(rs.text)
return data
except Exception as ex:
print(f"get: {url}, error: {ex}")
raise Exception
@retry(tries=3)
def get_ip(session: Any, github_url: str) -> Optional[str]:
url = f'https://sites.ipaddress.com/{github_url}'
headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)'
' AppleWebKit/537.36 (KHTML, like Gecko) Chrome/1'
'06.0.0.0 Safari/537.36'}
try:
rs = session.get(url, headers=headers, timeout=5)
table = rs.html.find('#dns', first=True)
pattern = r"\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b"
ip_list = re.findall(pattern, table.text)
best_ip = get_best_ip(ip_list)
if best_ip:
return best_ip
else:
raise Exception(f"url: {github_url}, ipaddress empty")
except Exception as ex:
print(f"get: {url}, error: {ex}")
raise Exception
def main(verbose=False) -> None:
if verbose:
print('Start script.')
session = HTMLSession()
content = ""
content_list = get_json(session)
for item in content_list:
content += item[0].ljust(30) + item[1] + "\n"
# content_list = []
# for index, github_url in enumerate(GITHUB_URLS):
# try:
# ip = get_ip(session, github_url)
#
# content += ip.ljust(30) + github_url + "\n"
# content_list.append((ip, github_url,))
# except Exception:
# continue
# if verbose:
# print(f'process url: {index + 1}/{len(GITHUB_URLS)}')
if not content:
return
update_time = datetime.utcnow().astimezone(
timezone(timedelta(hours=8))).replace(microsecond=0).isoformat()
hosts_content = HOSTS_TEMPLATE.format(content=content,
update_time=update_time)
has_change = write_file(hosts_content, update_time)
if has_change:
write_json_file(content_list)
if verbose:
print(hosts_content)
print('End script.')
if __name__ == '__main__':
main(True)