package_index.py 文件源码

def open_with_auth(url, opener=urllib.request.urlopen):
    """Open a urllib2 request, handling HTTP authentication"""

    scheme, netloc, path, params, query, frag = urllib.parse.urlparse(url)

    # Double scheme does not raise on Mac OS X as revealed by a
    # failing test. We would expect "nonnumeric port". Refs #20.
    if netloc.endswith(':'):
        raise http_client.InvalidURL("nonnumeric port: ''")

    if scheme in ('http', 'https'):
        auth, host = splituser(netloc)
    else:
        auth = None

    if not auth:
        cred = PyPIConfig().find_credential(url)
        if cred:
            auth = str(cred)
            info = cred.username, url
            log.info('Authenticating as %s for %s (from .pypirc)', *info)

    if auth:
        auth = "Basic " + _encode_auth(auth)
        parts = scheme, host, path, params, query, frag
        new_url = urllib.parse.urlunparse(parts)
        request = urllib.request.Request(new_url)
        request.add_header("Authorization", auth)
    else:
        request = urllib.request.Request(url)

    request.add_header('User-Agent', user_agent)
    fp = opener(request)

    if auth:
        # Put authentication info back into request URL if same host,
        # so that links found on the page will work
        s2, h2, path2, param2, query2, frag2 = urllib.parse.urlparse(fp.url)
        if s2 == scheme and h2 == host:
            parts = s2, netloc, path2, param2, query2, frag2
            fp.url = urllib.parse.urlunparse(parts)

    return fp


# adding a timeout to avoid freezing package_index