53 lines
1.9 KiB
Python
53 lines
1.9 KiB
Python
# Copyright 2021 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from html.parser import HTMLParser
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from typing import Dict, Iterable, List, Optional, Tuple
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class TestHtmlParser(HTMLParser):
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"""A generic HTML page parser which extracts useful things from the HTML"""
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def __init__(self):
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super().__init__()
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# a list of links found in the doc
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self.links: List[str] = []
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# the values of any hidden <input>s: map from name to value
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self.hiddens: Dict[str, Optional[str]] = {}
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# the values of any radio buttons: map from name to list of values
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self.radios: Dict[str, List[Optional[str]]] = {}
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def handle_starttag(
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self, tag: str, attrs: Iterable[Tuple[str, Optional[str]]]
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) -> None:
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attr_dict = dict(attrs)
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if tag == "a":
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href = attr_dict["href"]
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if href:
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self.links.append(href)
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elif tag == "input":
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input_name = attr_dict.get("name")
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if attr_dict["type"] == "radio":
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assert input_name
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self.radios.setdefault(input_name, []).append(attr_dict["value"])
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elif attr_dict["type"] == "hidden":
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assert input_name
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self.hiddens[input_name] = attr_dict["value"]
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def error(_, message):
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raise AssertionError(message)
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