container-server/services/proxy/errorpages/generate.py

from string import Template
import datetime
import os

dist_dir = 'dist'

errors = {
    'maintenance': {
        'code': '503',
        'emoji': '🏗️',
        'title': 'Maintenance',
        'description': 'The service is currently under maintenance and will be back later.',
    },
    400: {
        'code': '400',
        'emoji': '🚫',
        'title': 'Bad Request',
        'description': 'The server cannot or will not process the request due to something that is perceived to be a client error (e.g. malformed request syntax).',
    },
    401: {
        'code': '401',
        'emoji': '🔐',
        'title': 'Unauthorized',
        'description': 'The request has not been applied because it lacks valid authentication credentials for the target resource.',
    },
    403: {
        'code': '403',
        'emoji': '⛔',
        'title': 'Forbidden',
        'description': 'The server understood the request but refuses to authorize it.',
    },
    404: {
        'code': '404',
        'emoji': '🔍',
        'title': 'Not Found',
        'description': 'The requested page could not be found.',
    },
    405: {
        'code': '405',
        'emoji': '❗',
        'title': 'Method Not Allowed',
        'description': 'The method received in the request-line is known by the origin server but not supported by the target resource.',
    },
    408: {
        'code': '408',
        'emoji': '⌛️',
        'title': 'Request Timeout',
        'description': 'The server timed out waiting for the request.',
    },
    413: {
        'code': '413',
        'emoji': '⌛️',
        'title': 'Payload Too Large',
        'description': 'The server will not accept the request because the request entity is too large.',
    },
    418: {
        'code': '418',
        'emoji': '🍵',
        'title': 'I\'m a Teapot',
        'description': 'Any attempt to brew coffee with a teapot should result in the error code "418 I\'m a teapot". The resulting entity body MAY be short and stout.',
    },
    429: {
        'code': '429',
        'emoji': '🌋',
        'title': 'Too Many Requests',
        'description': 'The user has sent too many requests in a given amount of time.',
    },
    500: {
        'code': '500',
        'emoji': '💣',
        'title': 'Internal Server Error',
        'description': 'The server encountered an unexpected condition that prevented it from fulfilling the request.',
    },
    501: {
        'code': '501',
        'emoji': '📭',
        'title': 'Not Implemented',
        'description': 'The server does not support the functionality required to fulfill the request.',
    },
    502: {
        'code': '502',
        'emoji': '🚧',
        'title': 'Bad Gateway',
        'description': 'The server was acting as a gateway or proxy and received an invalid response from the upstream server.',
    },
    503: {
        'code': '503',
        'emoji': '🚨',
        'title': 'Service Unavailable',
        'description': 'The service is currently unavailable.',
    },
    504: {
        'code': '504',
        'emoji': '⏲',
        'title': 'Gateway Timeout',
        'description': 'TThe server was acting as a gateway or proxy and did not receive a timely response from the upstream server.',
    },
}

date = {
    'date': datetime.datetime.now().isoformat()
}

print('== Creating output dir')
os.makedirs(f'./{dist_dir}', exist_ok=True)

print('== Creating error pages')
with open('./template.html', 'r') as f:
    template = Template(f.read())
    for key, content in errors.items():
        print(f' - {key}')
        result = template.substitute(content | date)
        with open(f'./{dist_dir}/{key}.html', 'w') as out:
            out.write(result)