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import itertools
import logging
import os
import posixpath
import urllib.parse
from typing import List
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.models.index import PyPI
from pip._internal.utils.compat import has_tls
from pip._internal.utils.misc import normalize_path, redact_auth_from_url
logger = logging.getLogger(__name__)
class SearchScope:
"""
Encapsulates the locations that pip is configured to search.
"""
__slots__ = ["find_links", "index_urls"]
@classmethod
def create(
cls,
find_links: List[str],
index_urls: List[str],
) -> "SearchScope":
"""
Create a SearchScope object after normalizing the `find_links`.
"""
# Build find_links. If an argument starts with ~, it may be
# a local file relative to a home directory. So try normalizing
# it and if it exists, use the normalized version.
# This is deliberately conservative - it might be fine just to
# blindly normalize anything starting with a ~...
built_find_links: List[str] = []
for link in find_links:
if link.startswith("~"):
new_link = normalize_path(link)
if os.path.exists(new_link):
link = new_link
built_find_links.append(link)
# If we don't have TLS enabled, then WARN if anyplace we're looking
# relies on TLS.
if not has_tls():
for link in itertools.chain(index_urls, built_find_links):
parsed = urllib.parse.urlparse(link)
if parsed.scheme == "https":
logger.warning(
"pip is configured with locations that require "
"TLS/SSL, however the ssl module in Python is not "
"available."
)
break
return cls(
find_links=built_find_links,
index_urls=index_urls,
)
def __init__(
self,
find_links: List[str],
index_urls: List[str],
) -> None:
self.find_links = find_links
self.index_urls = index_urls
def get_formatted_locations(self) -> str:
lines = []
redacted_index_urls = []
if self.index_urls and self.index_urls != [PyPI.simple_url]:
for url in self.index_urls:
redacted_index_url = redact_auth_from_url(url)
# Parse the URL
purl = urllib.parse.urlsplit(redacted_index_url)
# URL is generally invalid if scheme and netloc is missing
# there are issues with Python and URL parsing, so this test
# is a bit crude. See bpo-20271, bpo-23505. Python doesn't
# always parse invalid URLs correctly - it should raise
# exceptions for malformed URLs
if not purl.scheme and not purl.netloc:
logger.warning(
'The index url "%s" seems invalid, please provide a scheme.',
redacted_index_url,
)
redacted_index_urls.append(redacted_index_url)
lines.append(
"Looking in indexes: {}".format(", ".join(redacted_index_urls))
)
if self.find_links:
lines.append(
"Looking in links: {}".format(
", ".join(redact_auth_from_url(url) for url in self.find_links)
)
)
return "\n".join(lines)
def get_index_urls_locations(self, project_name: str) -> List[str]:
"""Returns the locations found via self.index_urls
Checks the url_name on the main (first in the list) index and
use this url_name to produce all locations
"""
def mkurl_pypi_url(url: str) -> str:
loc = posixpath.join(
url, urllib.parse.quote(canonicalize_name(project_name))
)
# For maximum compatibility with easy_install, ensure the path
# ends in a trailing slash. Although this isn't in the spec
# (and PyPI can handle it without the slash) some other index
# implementations might break if they relied on easy_install's
# behavior.
if not loc.endswith("/"):
loc = loc + "/"
return loc
return [mkurl_pypi_url(url) for url in self.index_urls]