68 lines
No EOL
2.6 KiB
Python
68 lines
No EOL
2.6 KiB
Python
# Copyright (c) 2014 Adafruit Industries
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# Author: Tony DiCola
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import json, requests
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# MQTT RC Error Types
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MQTT_ERRORS = [ 'Connection successful',
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'Incorrect protocol version',
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'Invalid Client ID',
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'Server unavailable ',
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'Bad username or password',
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'Not authorized' ]
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class AdafruitIOError(Exception):
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"""Base class for all Adafruit IO request failures."""
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pass
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class RequestError(Exception):
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"""General error for a failed Adafruit IO request."""
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def __init__(self, response):
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error_message = self._parse_error(response)
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super(RequestError, self).__init__("Adafruit IO request failed: {0} {1} - {2}".format(
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response.status_code, response.reason, error_message))
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def _parse_error(self, response):
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content = response.json()
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try:
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return content['error']
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except ValueError:
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return ""
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class ThrottlingError(AdafruitIOError):
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"""Too many requests have been made to Adafruit IO in a short period of time.
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Reduce the rate of requests and try again later.
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"""
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def __init__(self):
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super(ThrottlingError, self).__init__("Exceeded the limit of Adafruit IO " \
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"requests in a short period of time. Please reduce the rate of requests " \
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"and try again later.")
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class MQTTError(Exception):
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"""Handles connection attempt failed errors.
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"""
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def __init__(self, response):
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error = MQTT_ERRORS[response]
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super(MQTTError, self).__init__(error)
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pass |