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Project description
Python requests.HTTPAdapter for acw_sc__v2
acw_sc__v2 is a cookie used by some websites to prevent crawlers.
When the website detects that the request is sent by a crawler, it returns a javascript challenge. The crawler needs to solve the challenge and resend the request with the cookie set to the challenge value.
This project provides a Python requests.HTTPAdapter to resolve the challenge automatically.
Usage
pip install acw-sc-v2-py
import requests
session = requests.Session()
# add the following code to your original requests code
from acw_sc_v2_py import acw_sc__v2
adapter = acw_sc__v2.AcwScV2Adapter()
session.mont("http://", adapter)
session.mount("https://", adapter)
response = session.get("https://www.example.com/")
print(response.text)
Use Case
Before using acw-sc-v2-py
import requests
session = requests.Session()
for i in range(8):
response = session.get("https://www.example.com/")
print(response.text)
Usually, you will get blocked after sending 2 consecutive requests to the same website. The response will be like the following HTML code which requires you to solve a javascript challenge. If the web page is opened in a browser, the browser will automatically solve the challenge.
<html><script>
var arg1='70D9569CD5E5895C84F284A09503B1598C5762A1';
var _0x4818=['\x63\x73\x4b\x48\x77\x71\x4d\x49,...
function setCookie(name,value){var expiredate=new Date();...
function reload(x) {setCookie("acw_sc__v2", x);...
</script></html>
After using acw-sc-v2-py
import requests
# step 1: import
from acw_sc_v2_py import acw_sc__v2
session = requests.Session()
# step 2: create adapter
adapter = acw_sc__v2.AcwScV2Adapter()
# step 3: mount adapter
session.mont("http://", adapter)
session.mount("https://", adapter)
for i in range(8):
response = session.get("https://www.example.com/")
print(response.text)
By using acw-sc-v2-py, you will get the normal response. The
acw_sc__v2 will handle the javascript challenge and automatically
update the cookie.
Enable logging
Prepend the following code to enable detailed log for acw-sc-v2-py.
import logging
logger = logging.getLogger("acw_sc_v2_py.acw_sc__v2")
logger.setLevel(logging.DEBUG)
logger.propagate = True
import requests
from acw_sc_v2_py import acw_sc__v2
session = requests.Session()
adapter = acw_sc__v2.AcwScV2Adapter()
session.mont("http://", adapter)
session.mount("https://", adapter)
for i in range(8):
response = session.get("https://www.example.com/")
print(response.text)
The log will be like the following.
[2024-01-26 22:01:26] INFO:root:detected anti spam is triggered
[2024-01-26 22:01:28] INFO:root:cookie generated acw_sc__v2=65b3bb3601fe9ab002c5c1ff58fc71a1115e8322
[2024-01-26 22:01:28] INFO:root:resending the origin request
<!DOCTYPE html></html>
[2024-01-26 22:01:29] INFO:root:cookie set acw_sc__v2=65b3bb3601fe9ab002c5c1ff58fc71a1115e8322
[2024-01-26 22:01:30] INFO:root:anti spam is not triggered
<!DOCTYPE html></html>
...
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