<?php

$param = array
(
    'comment' => '',
    'phone_number' => '74952760800',
    'order_id' => '67',
    'currency' => 'RUB',
    'cost' => '511.0',
    'date_created' => '2021-01-28 21:35:49',
    'partner_id' => '250305',
    'resultStr' => 'транзакция оплачена полностью',
    'name' => 'Покупка в магазине',
    'system_income' => '511.0',
    'income_total' => '511.0',
    'partner_income' => '434.35',
    'version' => '1.0',
    'command' => 'success',
    'income' => '511.0',
    'tid' => '474541305',
    'service_id' => '85494',
    'type' => 'spg_test',
    'email' => 'test@mail.ru',
    'result' => ''
);

$secretKey = 'c9264d756f170802c4eaf9405077b946';

echo rawurlencode(md5($param['tid'].$param['name'].$param['comment'].$param['partner_id'].$param['service_id'].$param['order_id'].$param['type'].$param['cost'].$param['income_total'].$param['income'].$param['partner_income'].$param['system_income'].$param['command'].$param['phone_number'].$param['email'].$param['result'].$param['resultStr'].$param['date_created'].$param['version'].$secretKey));

import hashlib
from urllib.parse import parse_qs
import pprint

secretkey = '262eb24f12d0c3fdd990eae096016055'

params_list = [
    'tid',
    'name',
    'comment',
    'partner_id',
    'service_id',
    'order_id',
    'type',
    'cost',
    'income_total',
    'income',
    'partner_income',
    'system_income',
    'command',
    'phone_number',
    'email',
    'result',
    'resultStr',
    'date_created',
    'version',
    'secretKey'
]

# Тело webhook-нотификации, полученное на URL обработчика:
qs = 'comment=&phone_number=79165483580&order_id=00000015¤cy=RUB&cost=75.0&date_created=2022-03-29+22%3A38%3A08&partner_id=250305&check=66b522b5749bfe713ac089a55a013725&resultStr=%D1%82%D1%80%D0%B0%D0%BD%D0%B7%D0%B0%D0%BA%D1%86%D0%B8%D1%8F+%D0%BE%D0%BF%D0%BB%D0%B0%D1%87%D0%B5%D0%BD%D0%B0+%D1%87%D0%B0%D1%81%D1%82%D0%B8%D1%87%D0%BD%D0%BE&name=Acquiring+lifepay+00000015&system_income=75.0&income_total=75.0&partner_income=63.75&version=1.0&command=process&income=75.0&tid=491789584&service_id=87875&type=ipsp_test_cards_01&email=awa77%40mail.ru'
params = parse_qs(qs)
pp = pprint.PrettyPrinter()
pp.pprint(params)
values = []

for i in params_list:
    values.append(params.get(i, [''])[0])

md5_str = ''.join(values)
md5_str += secretkey
print(md5_str)
md5 = hashlib.md5(md5_str.encode('UTF-8')).hexdigest()
print('Рассчитанный MD5', md5)
print('MD5 полученный в нотификации',params['check'][0])

from urllib.parse import urlparse, parse_qs, quote
import hashlib
import base64
import hmac


def sign_by_url(method, url, params, secret_key,
                exclude=['check', 'mac'], exclude_port=True):
    o = urlparse(url)
    host = o.hostname if exclude_port else o.netloc
    return sign(method, host, o.path, params, secret_key, exclude)


def sign(method, host, uri, params, secret_key, exclude=['check', 'mac']):
    """
    Типовой метод для подписи HTTP запросов
    """
    keys = [param for param in params if param not in exclude]
    keys.sort()

    result = []
    for key in keys:
        value = quote(
            str(params.get(key) or '').encode('utf-8'),
            safe='~'
        )
        result.append('{}={}'.format(key, value))

    data = "\n".join([
        method,
        host,
        urlparse(uri).path,  # Без QUERY_STRING,НЕ uri
        "&".join(result)
    ])

    data = data.encode('utf-8')
    secret_key = secret_key.encode('utf-8')

    digest = hmac.new(
        secret_key,
        data,
        hashlib.sha256
    ).digest()
    signature = base64.b64encode(digest)

    return signature

# Тело нотификации
qs = "comment=&phone_number=0&order_id=0¤cy=RUB&cost=100.0&date_created=2022-06-30+11%3A46%3A22&partner_id=250305&check=nsxegvtGyPnZ4iE4GXe5iPKRjKjhi5%2FejN2sfErAewE%3D&card=220138XXXXXX0013&resultStr=%D1%82%D1%80%D0%B0%D0%BD%D0%B7%D0%B0%D0%BA%D1%86%D0%B8%D1%8F+%D0%BE%D0%BF%D0%BB%D0%B0%D1%87%D0%B5%D0%BD%D0%B0+%D0%BF%D0%BE%D0%BB%D0%BD%D0%BE%D1%81%D1%82%D1%8C%D1%8E&name=Life+Pay&system_income=100.0&income_total=100.0&paid_date=2022-06-30+11%3A46%3A41.355627&partner_income=96.6&version=2.0&command=success&cardholder=TEST+TEST&income=100.0&tid=491825313&service_id=67279&type=spg_test&email="

params = {k: v[0] for k, v in parse_qs(qs, keep_blank_values=True).items()}
secret_key = "262eb24f12d0c3fdd990eae096016055" # секретный ключ из настроек сервиса
url = "https://96d8-109-63-129-14.eu.ngrok.io" # URL для получения веб-хуков из настроек сервиса

print("Подпись из нотификации", params['check'].encode('UTF-8'))
signature = sign_by_url('POST', url, params, secret_key)
print("Результат расчёта подписи", signature) # Результат должен совпадать!