78 lines
3.2 KiB
Python
78 lines
3.2 KiB
Python
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# -*- coding: utf-8 -*-
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# flake8: noqa
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"""
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hyper/http20/errors
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~~~~~~~~~~~~~~~~~~~
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Global error code registry containing the established HTTP/2 error codes.
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The registry is based on a 32-bit space so we use the error code to index into
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the array.
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The current registry is available at:
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https://tools.ietf.org/html/rfc7540#section-11.4
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"""
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NO_ERROR = {'Name': 'NO_ERROR',
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'Code': '0x0',
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'Description': 'Graceful shutdown'}
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PROTOCOL_ERROR = {'Name': 'PROTOCOL_ERROR',
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'Code': '0x1',
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'Description': 'Protocol error detected'}
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INTERNAL_ERROR = {'Name': 'INTERNAL_ERROR',
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'Code': '0x2',
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'Description': 'Implementation fault'}
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FLOW_CONTROL_ERROR = {'Name': 'FLOW_CONTROL_ERROR',
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'Code': '0x3',
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'Description': 'Flow control limits exceeded'}
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SETTINGS_TIMEOUT = {'Name': 'SETTINGS_TIMEOUT',
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'Code': '0x4',
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'Description': 'Settings not acknowledged'}
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STREAM_CLOSED = {'Name': 'STREAM_CLOSED',
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'Code': '0x5',
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'Description': 'Frame received for closed stream'}
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FRAME_SIZE_ERROR = {'Name': 'FRAME_SIZE_ERROR',
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'Code': '0x6',
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'Description': 'Frame size incorrect'}
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REFUSED_STREAM = {'Name': 'REFUSED_STREAM ',
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'Code': '0x7',
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'Description': 'Stream not processed'}
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CANCEL = {'Name': 'CANCEL',
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'Code': '0x8',
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'Description': 'Stream cancelled'}
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COMPRESSION_ERROR = {'Name': 'COMPRESSION_ERROR',
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'Code': '0x9',
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'Description': 'Compression state not updated'}
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CONNECT_ERROR = {'Name': 'CONNECT_ERROR',
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'Code': '0xa',
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'Description':
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'TCP connection error for CONNECT method'}
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ENHANCE_YOUR_CALM = {'Name': 'ENHANCE_YOUR_CALM',
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'Code': '0xb',
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'Description': 'Processing capacity exceeded'}
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INADEQUATE_SECURITY = {'Name': 'INADEQUATE_SECURITY',
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'Code': '0xc',
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'Description':
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'Negotiated TLS parameters not acceptable'}
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HTTP_1_1_REQUIRED = {'Name': 'HTTP_1_1_REQUIRED',
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'Code': '0xd',
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'Description': 'Use HTTP/1.1 for the request'}
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H2_ERRORS = [NO_ERROR, PROTOCOL_ERROR, INTERNAL_ERROR, FLOW_CONTROL_ERROR,
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SETTINGS_TIMEOUT, STREAM_CLOSED, FRAME_SIZE_ERROR, REFUSED_STREAM,
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CANCEL, COMPRESSION_ERROR, CONNECT_ERROR, ENHANCE_YOUR_CALM,
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INADEQUATE_SECURITY, HTTP_1_1_REQUIRED]
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def get_data(error_code):
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"""
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Lookup the error code description, if not available throw a value error
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"""
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if error_code < 0 or error_code >= len(H2_ERRORS):
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raise ValueError("Error code is invalid")
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name = H2_ERRORS[error_code]['Name']
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number = H2_ERRORS[error_code]['Code']
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description = H2_ERRORS[error_code]['Description']
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return name, number, description
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