This file is indexed.

/usr/lib/python2.7/dist-packages/linkcheck/httputil.py is in linkchecker 9.3-4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
# -*- coding: iso-8859-1 -*-
# Copyright (C) 2005-2014 Bastian Kleineidam
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import base64
from datetime import datetime


DEFAULT_KEEPALIVE = 300

MAX_HEADER_BYTES = 8*1024


def encode_base64 (s):
    """Encode given string in base64, excluding trailing newlines."""
    return base64.b64encode(s)


def x509_to_dict(x509):
    """Parse a x509 pyopenssl object to a dictionary with keys
    subject, subjectAltName and optional notAfter.
    """
    import urllib3.contrib.pyopenssl as SSL
    res = {
            'subject': (
                (('commonName', x509.get_subject().CN),),
            ),
            'subjectAltName': [
                ('DNS', value)
                for value in SSL.get_subj_alt_name(x509)
            ]
    }
    notAfter = x509.get_notAfter()
    if notAfter is not None:
        parsedtime = asn1_generaltime_to_seconds(notAfter)
        if parsedtime is not None:
            res['notAfter'] = parsedtime.strftime('%b %d %H:%M:%S %Y')
            if parsedtime.tzinfo is None:
                res['notAfter'] += ' GMT'
        else:
            # give up parsing, just set the string
            res['notAfter'] = notAfter
    return res


def asn1_generaltime_to_seconds(timestr):
    """The given string has one of the following formats
    YYYYMMDDhhmmssZ
    YYYYMMDDhhmmss+hhmm
    YYYYMMDDhhmmss-hhmm
    @return: a datetime object or None on error
    """
    res = None
    timeformat = "%Y%m%d%H%M%S"
    try:
        res = datetime.strptime(timestr, timeformat + 'Z')
    except ValueError:
        try:
            res = datetime.strptime(timestr, timeformat + '%z')
        except ValueError:
            pass
    return res

def has_header_value (headers, name, value):
    """
    Look in headers for a specific header name and value.
    Both name and value are case insensitive.

    @return: True if header name and value are found
    @rtype: bool
    """
    name = name.lower()
    value = value.lower()
    for hname, hvalue in headers:
        if hname.lower()==name and hvalue.lower()==value:
            return True
    return False


def http_persistent (response):
    """
    See if the HTTP connection can be kept open according the the
    header values found in the response object.

    @param response: response instance
    @type response: httplib.HTTPResponse
    @return: True if connection is persistent
    @rtype: bool
    """
    headers = response.getheaders()
    if response.version == 11:
        return not has_header_value(headers, 'Connection', 'Close')
    return has_header_value(headers, "Connection", "Keep-Alive")


def http_keepalive (headers):
    """
    Get HTTP keepalive value, either from the Keep-Alive header or a
    default value.

    @param headers: HTTP headers
    @type headers: dict
    @return: keepalive in seconds
    @rtype: int
    """
    keepalive = headers.get("Keep-Alive")
    if keepalive is not None:
        try:
            keepalive = int(keepalive[8:].strip())
        except (ValueError, OverflowError):
            keepalive = DEFAULT_KEEPALIVE
    else:
        keepalive = DEFAULT_KEEPALIVE
    return keepalive


def get_content_type (headers):
    """
    Get the MIME type from the Content-Type header value, or
    'application/octet-stream' if not found.

    @return: MIME type
    @rtype: string
    """
    ptype = headers.get('Content-Type', 'application/octet-stream')
    if ";" in ptype:
        # split off not needed extension info
        ptype = ptype.split(';')[0]
    return ptype.strip().lower()


def get_charset(headers):
    """
    Get the charset encoding from the Content-Type header value, or
    None if not found.

    @return: the content charset encoding
    @rtype: string or None
    """
    from linkcheck.HtmlParser import get_ctype_charset
    return get_ctype_charset(headers.get('Content-Type', ''))


def get_content_encoding (headers):
    """
    Get the content encoding from the Content-Encoding header value, or
    an empty string if not found.

    @return: encoding string
    @rtype: string
    """
    return headers.get("Content-Encoding", "").strip()