/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()
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