Ivan Kravets
99 lines
3.7 KiB
Python
99 lines
3.7 KiB
Python
# Copyright (c) 2014-present PlatformIO <contact@platformio.org>
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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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import json
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from urllib.parse import urlparse
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from platformio import __registry_mirror_hosts__
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from platformio.cache import ContentCache
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from platformio.http import HTTPClient
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from platformio.registry.client import RegistryClient
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class RegistryFileMirrorIterator:
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HTTP_CLIENT_INSTANCES = {}
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def __init__(self, download_url):
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self.download_url = download_url
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self._url_parts = urlparse(download_url)
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self._mirror = "%s://%s" % (self._url_parts.scheme, self._url_parts.netloc)
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self._visited_mirrors = []
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def __iter__(self): # pylint: disable=non-iterator-returned
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return self
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def __next__(self):
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cache_key = ContentCache.key_from_args(
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"head", self.download_url, self._visited_mirrors
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)
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with ContentCache("http") as cc:
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result = cc.get(cache_key)
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if result is not None:
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try:
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headers = json.loads(result)
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return (
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headers["Location"],
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headers["X-PIO-Content-SHA256"],
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)
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except (ValueError, KeyError):
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pass
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http = self.get_http_client()
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response = http.send_request(
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"head",
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self._url_parts.path,
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allow_redirects=False,
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params=dict(bypass=",".join(self._visited_mirrors))
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if self._visited_mirrors
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else None,
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x_with_authorization=RegistryClient.allowed_private_packages(),
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)
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stop_conditions = [
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response.status_code not in (302, 307),
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not response.headers.get("Location"),
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not response.headers.get("X-PIO-Mirror"),
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response.headers.get("X-PIO-Mirror") in self._visited_mirrors,
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]
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if any(stop_conditions):
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raise StopIteration
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self._visited_mirrors.append(response.headers.get("X-PIO-Mirror"))
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cc.set(
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cache_key,
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json.dumps(
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{
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"Location": response.headers.get("Location"),
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"X-PIO-Content-SHA256": response.headers.get(
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"X-PIO-Content-SHA256"
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),
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}
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),
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"1h",
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)
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return (
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response.headers.get("Location"),
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response.headers.get("X-PIO-Content-SHA256"),
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)
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def get_http_client(self):
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if self._mirror not in RegistryFileMirrorIterator.HTTP_CLIENT_INSTANCES:
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endpoints = [self._mirror]
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for host in __registry_mirror_hosts__:
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endpoint = f"https://dl.{host}"
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if endpoint not in endpoints:
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endpoints.append(endpoint)
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RegistryFileMirrorIterator.HTTP_CLIENT_INSTANCES[self._mirror] = HTTPClient(
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endpoints
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)
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return RegistryFileMirrorIterator.HTTP_CLIENT_INSTANCES[self._mirror]
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