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37 lines
1.3 KiB
37 lines
1.3 KiB
import base64
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import hashlib
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import hmac
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import datetime
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from urllib import parse
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import urllib.parse
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from huobi.exception.huobi_api_exception import HuobiApiException
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def create_signature(api_key, secret_key, method, url, builder):
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if api_key is None or secret_key is None or api_key == "" or secret_key == "":
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raise HuobiApiException(HuobiApiException.KEY_MISSING, "API key and secret key are required")
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timestamp = utc_now()
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builder.put_url("AccessKeyId", api_key)
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builder.put_url("SignatureVersion", "2")
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builder.put_url("SignatureMethod", "HmacSHA256")
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builder.put_url("Timestamp", timestamp)
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host = urllib.parse.urlparse(url).hostname
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path = urllib.parse.urlparse(url).path
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# 对参数进行排序:
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keys = sorted(builder.param_map.keys())
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# 加入&
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qs0 = '&'.join(['%s=%s' % (key, parse.quote(builder.param_map[key], safe='')) for key in keys])
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# 请求方法，域名，路径，参数 后加入`\n`
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payload0 = '%s\n%s\n%s\n%s' % (method, host, path, qs0)
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dig = hmac.new(secret_key.encode('utf-8'), msg=payload0.encode('utf-8'), digestmod=hashlib.sha256).digest()
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# 进行base64编码
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s = base64.b64encode(dig).decode()
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builder.put_url("Signature", s)
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def utc_now():
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return datetime.datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%S')
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