12306/agency/cdn_utils.py

98 lines
2.5 KiB
Python

# encoding=utf8
import datetime
import operator
import os
import asyncio
import functools
from config.urlConf import urls
from myUrllib.httpUtils import HTTPClient
finish_count = 0
def run_in_executor(f):
@functools.wraps(f)
def inner(*args, **kwargs):
loop = asyncio.get_running_loop()
return loop.run_in_executor(None, lambda: f(*args, **kwargs))
return inner
def calculate_rtt_blocking(cdn):
global finish_count
http = HTTPClient(0)
url = urls["loginInitCdn"]
http._cdn = cdn
print(f"测试cdn: {cdn}")
start_time = datetime.datetime.now()
rep = http.send(url)
rtt = (datetime.datetime.now() - start_time).microseconds / 1000
finish_count += 1
print(f"测试完成个数: {finish_count}")
return {"ip": cdn, "time": rtt} if rep else None
@run_in_executor
def calculate_rtt_async(cdn):
return calculate_rtt_blocking(cdn)
def open_cdn_file(cdnFile):
cdn = []
path = os.path.join(os.path.dirname(__file__), f'../{cdnFile}')
try:
with open(path, "r", encoding="utf-8") as f:
for i in f.readlines():
if i and "kyfw.12306.cn:443" not in i:
cdn.append(i.replace("\n", ""))
return cdn
except Exception:
with open(path, "r") as f:
for i in f.readlines():
if i and "kyfw.12306.cn:443" not in i:
cdn.append(i.replace("\n", ""))
return cdn
def sortCdn(cdn_list):
"""
对cdn进行排序
:return:
"""
ips = []
cs = sorted(cdn_list, key=operator.itemgetter('time'))
for c in cs:
print(f"当前ip: {c['ip']}, 延时: {c['time']}")
ips.append(c["ip"])
return ips
async def filterCdn():
"""
过滤cdn, 过滤逻辑为当前cdn响应值小于1000毫秒
过滤日志:
加入cdn: 116.77.75.146
:return:
"""
cdns = open_cdn_file("cdn_list")
cdn_tasks = [calculate_rtt_async(cdn) for cdn in cdns]
done, pending = await asyncio.wait(fs=cdn_tasks, return_when=asyncio.ALL_COMPLETED)
cdn_list = [task.result() for task in done if task.exception() is None and task.result() is not None]
print(f"当前有效cdn个数为: {len(cdn_list)}")
if cdn_list:
ips = sortCdn(cdn_list)
path = os.path.join(os.path.dirname(__file__), f'../filter_cdn_list')
f = open(path, "a+")
f.seek(0)
f.truncate()
f.writelines("")
for ip in ips:
f.writelines(f"{ip}\n")
f.close()
if __name__ == '__main__':
filterCdn()