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https://github.com/alexgo-io/stacks-puppet-node.git
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254 lines
7.6 KiB
Python
254 lines
7.6 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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"""
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Blockstack Core
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~~~~~
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copyright: (c) 2014-2017 by Blockstack Inc.
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copyright: (c) 2017 by Blockstack.org
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This file is part of Blockstack Core.
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Blockstack Core is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Blockstack Core is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Blockstack Core. If not, see <http://www.gnu.org/licenses/>.
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"""
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import json
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import traceback
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from flask import render_template, jsonify, request
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from . import app
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from .utils import camelcase_to_snakecase
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class APIError(Exception):
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status_code = 500
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message = "Internal server error"
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def __init__(self, message=None, status_code=None, payload=None):
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Exception.__init__(self)
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if message:
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self.message = message
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if status_code is not None:
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self.status_code = status_code
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self.payload = payload
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def to_dict(self):
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d = dict(self.payload or ())
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d['message'] = self.message
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d['type'] = camelcase_to_snakecase(
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self.__class__.__name__.replace('Error', ''))
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return d
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def __str__(self):
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return self.message
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class GenericError(APIError):
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status_code = 403
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message = "Internal server error"
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def __init__(self, error_message):
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super(self.__class__, self).__init__()
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self.message = error_message
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class PaymentError(APIError):
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status_code = 402
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message = "Payment addresses are either under funded or have pending transactions: "
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def __init__(self, addresses):
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super(self.__class__, self).__init__()
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self.message += str(addresses)
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class InvalidAddressError(APIError):
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status_code = 403
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message = "Given address is not a valid cryptocurrency address: "
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def __init__(self, address):
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super(self.__class__, self).__init__()
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self.message += str(address)
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class MethodNotAllowedError(APIError):
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status_code = 405
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message = ("The HTTP method used in this request is not allowed by this "
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"endpoint. Check the API documentation to see which ones are "
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"supported.")
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class InvalidCredentialsError(APIError):
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status_code = 401
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message = ("Invalid API credential provided. Make sure your app ID and "
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"app secret are correct.")
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class MissingCredentialsError(APIError):
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status_code = 401
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message = ("Authentication credentials are required to complete this "
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"request. Make sure to sign up for an API account and provide "
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"your app ID and app secret when making requests.")
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class AccountRegistrationError(APIError):
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status_code = 500
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message = ("Could not register API account. It is possible there already "
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"exists an account with the email address provided.")
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class InvalidProfileDataError(APIError):
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status_code = 502
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message = ("A valid JSON object has not been found. The data is "
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"likely malformed, but if you check another source for the "
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"data and it seems there is nothing wrong with it, please "
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"report this to support@blockstack.org, as there might have been "
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"an error with the way the data was handled.")
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class InvalidZoneFileTypeError(APIError):
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status_code = 401
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message = ("The zone file supplied must be a string.")
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class InvalidZoneFileSizeError(APIError):
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status_code = 401
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message = ("Profile data is invalid, because it exceeds maximum size.")
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class UsernameTakenError(APIError):
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status_code = 403
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message = ("There already exists a profile with the username provided.")
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class UsernameTakenError(APIError):
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status_code = 403
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message = ("There already exists a profile with the username provided.")
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class UsernameNotRegisteredError(APIError):
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status_code = 404
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message = ("This username is not registered.")
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class DatabaseSaveError(APIError):
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status_code = 500
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message = ("There was a problem saving to the database. Please report "
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"this error to support@blockstack.org.")
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class DatabaseLookupError(APIError):
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status_code = 500
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message = ("There was a problem performing a lookup in the database. "
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"Please report this error to support@blockstack.org.")
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class InternalProcessingError(APIError):
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status_code = 500
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message = ("There was a problem processing the request. Please report "
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"this error to support@blockstack.org.")
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class InternalSSLError(APIError):
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status_code = 500
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message = ("There was a problem processing the request with an internal "
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"SSL error. Please report this error to support@blockstack.org.")
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class ResolverConnectionError(APIError):
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status_code = 500
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message = ("There was a problem processing the request. It seems that the "
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"name system resolver could not be reached. Please report "
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"this error to support@blockstack.org.")
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class DKIMPubkeyError(APIError):
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status_code = 404
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message = ("Public key record for domain not found")
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class EmailTokenError(APIError):
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status_code = 401
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message = ("Missing or invalid token. A valid token is required for "
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"submitting emails")
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class InvalidEmailError(APIError):
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status_code = 400
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message = ("Invalid email address.")
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class PageNotFoundError(APIError):
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status_code = 400
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message = ("Page not found.")
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class UpgradeInprogressError(APIError):
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status_code = 403
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message = ("This end-point is currently being upgraded and is temporarily unavailable")
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class BroadcastTransactionError(APIError):
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status_code = 400
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message = ("There was a problem broadcasting the transaction to the "
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"network. Make sure that your transaction is well-formed that "
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"it has sufficient valid unspent outputs referenced as inputs "
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"to the transaction.")
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def __init__(self, network_error_message):
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super(self.__class__, self).__init__()
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message_extension = " Error message received from the network: %s" % (
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network_error_message)
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self.message = self.message + message_extension
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# 404 Error handler
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@app.errorhandler(404)
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def resource_not_found(e):
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if len(request.path) > 1 and request.path[1] == 'v':
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error = PageNotFoundError()
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response = jsonify({'error': error.to_dict()})
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response.status_code = 400
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return response
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else:
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return render_template('error.html', status_code=404,
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error_message="Resource not found"), 404
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# 405 Error Handler
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@app.errorhandler(405)
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def method_not_allowed(e):
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error = MethodNotAllowedError()
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response = jsonify({'error': error.to_dict()})
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response.status_code = 405
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return response
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# API error handler
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@app.errorhandler(APIError)
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def general_api_error_handler(error):
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response = jsonify({'error': error.to_dict()})
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response.status_code = error.status_code
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return response
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# 500 Error handler
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@app.errorhandler(Exception)
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@app.errorhandler(500)
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def exception_error(e):
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traceback.print_exc()
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error = InternalProcessingError()
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response = jsonify({'error': error.to_dict()})
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response.status_code = 500
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return response
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