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56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
#!/usr/bin/env python3
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# Copyright 2023 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import os
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import re
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import sys
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from typing import Union
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_THIS_DIR = os.path.abspath(os.path.dirname(__file__))
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# The repo's root directory.
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_ROOT_DIR = os.path.abspath(os.path.join(_THIS_DIR, "..", "..", ".."))
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# Add the repo's root directory for clearer imports.
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sys.path.insert(0, _ROOT_DIR)
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import metadata.fields.field_types as field_types
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import metadata.fields.util as util
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import metadata.validation_result as vr
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_PATTERN_URL_ALLOWED = re.compile(r"^(https?|ftp|git):\/\/\S+$")
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_PATTERN_URL_CANONICAL_REPO = re.compile(
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r"^This is the canonical (public )?repo(sitory)?\.?$", re.IGNORECASE)
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class URLField(field_types.MetadataField):
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"""Custom field for the package URL(s)."""
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def __init__(self):
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super().__init__(name="URL", one_liner=False)
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def validate(self, value: str) -> Union[vr.ValidationResult, None]:
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"""Checks the given value has acceptable URL values only.
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Note: this field supports multiple values.
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"""
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if util.matches(_PATTERN_URL_CANONICAL_REPO, value):
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return None
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invalid_values = []
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for url in value.split(self.VALUE_DELIMITER):
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url = url.strip()
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if not util.matches(_PATTERN_URL_ALLOWED, url):
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invalid_values.append(url)
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if invalid_values:
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return vr.ValidationError(
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reason=f"{self._name} is invalid.",
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additional=[
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"URLs must use a protocol scheme in [http, https, ftp, git].",
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f"Separate URLs using a '{self.VALUE_DELIMITER}'.",
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f"Invalid values: {util.quoted(invalid_values)}.",
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])
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return None
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