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https://github.com/QingdaoU/OnlineJudge.git
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61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
import logging
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import random
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from django.utils.crypto import get_random_string
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from envelopes import Envelope
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from conf.models import SMTPConfig
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logger = logging.getLogger(__name__)
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def send_email(from_name, to_email, to_name, subject, content):
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smtp = SMTPConfig.objects.first()
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if not smtp:
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return
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envlope = Envelope(from_addr=(smtp.email, from_name),
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to_addr=(to_email, to_name),
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subject=subject,
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html_body=content)
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try:
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envlope.send(smtp.server,
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login=smtp.email,
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password=smtp.password,
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port=smtp.port,
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tls=smtp.tls)
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return True
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except Exception as e:
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logger.exception(e)
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return False
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def rand_str(length=32, type="lower_hex"):
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"""
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生成指定长度的随机字符串或者数字, 可以用于密钥等安全场景
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:param length: 字符串或者数字的长度
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:param type: str 代表随机字符串，num 代表随机数字
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:return: 字符串
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"""
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if type == "str":
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return get_random_string(length, allowed_chars="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
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elif type == "lower_str":
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return get_random_string(length, allowed_chars="abcdefghijklmnopqrstuvwxyz0123456789")
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elif type == "lower_hex":
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return random.choice("123456789abcdef") + get_random_string(length - 1, allowed_chars="0123456789abcdef")
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else:
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return random.choice("123456789") + get_random_string(length - 1, allowed_chars="0123456789")
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def build_query_string(kv_data, ignore_none=True):
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# {"a": 1, "b": "test"} -> "?a=1&b=test"
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query_string = ""
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for k, v in kv_data.items():
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if ignore_none is True and kv_data[k] is None:
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continue
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if query_string != "":
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query_string += "&"
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else:
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query_string = "?"
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query_string += (k + "=" + str(v))
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return query_string
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