mirror of
https://github.com/langgenius/dify.git
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150 lines
4.0 KiB
Python
150 lines
4.0 KiB
Python
# -*- coding:utf-8 -*-
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import re
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import subprocess
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import uuid
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from datetime import datetime
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from zoneinfo import available_timezones
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import random
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import string
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from flask_restful import fields
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def run(script):
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return subprocess.getstatusoutput('source /root/.bashrc && ' + script)
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class TimestampField(fields.Raw):
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def format(self, value):
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return int(value.timestamp())
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def email(email):
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# Define a regex pattern for email addresses
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pattern = r"^[\w\.-]+@([\w-]+\.)+[\w-]{2,}$"
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# Check if the email matches the pattern
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if re.match(pattern, email) is not None:
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return email
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error = ('{email} is not a valid email.'
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.format(email=email))
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raise ValueError(error)
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def uuid_value(value):
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if value == '':
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return str(value)
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try:
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uuid_obj = uuid.UUID(value)
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return str(uuid_obj)
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except ValueError:
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error = ('{value} is not a valid uuid.'
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.format(value=value))
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raise ValueError(error)
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def timestamp_value(timestamp):
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try:
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int_timestamp = int(timestamp)
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if int_timestamp < 0:
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raise ValueError
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return int_timestamp
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except ValueError:
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error = ('{timestamp} is not a valid timestamp.'
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.format(timestamp=timestamp))
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raise ValueError(error)
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class str_len(object):
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""" Restrict input to an integer in a range (inclusive) """
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def __init__(self, max_length, argument='argument'):
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self.max_length = max_length
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self.argument = argument
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def __call__(self, value):
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length = len(value)
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if length > self.max_length:
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error = ('Invalid {arg}: {val}. {arg} cannot exceed length {length}'
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.format(arg=self.argument, val=value, length=self.max_length))
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raise ValueError(error)
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return value
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class float_range(object):
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""" Restrict input to an float in a range (inclusive) """
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def __init__(self, low, high, argument='argument'):
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self.low = low
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self.high = high
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self.argument = argument
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def __call__(self, value):
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value = _get_float(value)
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if value < self.low or value > self.high:
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error = ('Invalid {arg}: {val}. {arg} must be within the range {lo} - {hi}'
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.format(arg=self.argument, val=value, lo=self.low, hi=self.high))
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raise ValueError(error)
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return value
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class datetime_string(object):
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def __init__(self, format, argument='argument'):
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self.format = format
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self.argument = argument
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def __call__(self, value):
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try:
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datetime.strptime(value, self.format)
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except ValueError:
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error = ('Invalid {arg}: {val}. {arg} must be conform to the format {format}'
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.format(arg=self.argument, val=value, lo=self.format))
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raise ValueError(error)
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return value
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def _get_float(value):
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try:
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return float(value)
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except (TypeError, ValueError):
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raise ValueError('{0} is not a valid float'.format(value))
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def supported_language(lang):
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if lang in ['en-US', 'zh-Hans']:
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return lang
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error = ('{lang} is not a valid language.'
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.format(lang=lang))
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raise ValueError(error)
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def timezone(timezone_string):
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if timezone_string and timezone_string in available_timezones():
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return timezone_string
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error = ('{timezone_string} is not a valid timezone.'
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.format(timezone_string=timezone_string))
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raise ValueError(error)
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def generate_string(n):
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letters_digits = string.ascii_letters + string.digits
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result = ""
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for i in range(n):
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result += random.choice(letters_digits)
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return result
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def get_remote_ip(request):
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if request.headers.get('CF-Connecting-IP'):
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return request.headers.get('Cf-Connecting-Ip')
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elif request.headers.getlist("X-Forwarded-For"):
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return request.headers.getlist("X-Forwarded-For")[0]
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else:
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return request.remote_addr
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