Mercurial > cpython-lru_cache-weakref

annotate Lib/robotparser.py @ 24042:63fbbed10714 legacy-trunk

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Simplify HTTPSConnection constructor. See discussion in SF bug 458463.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Fri, 28 Jun 2002 23:38:14 +0000
parents acbe8e7f99d9
children 14f65d661084
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 """ robotparser.py
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2
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3 Copyright (C) 2000 Bastian Kleineidam
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4
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5 You can choose between two licenses when using this package:
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6 1) GNU GPLv2
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7 2) PSF license for Python 2.2
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8
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9 The robots.txt Exclusion Protocol is implemented as specified in
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10 http://info.webcrawler.com/mak/projects/robots/norobots-rfc.html
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11 """
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12 import urlparse,urllib
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13
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14 __all__ = ["RobotFileParser"]
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15
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16 debug = 0
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17
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18 def _debug(msg):
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19 if debug: print msg
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20
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21
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22 class RobotFileParser:
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23 """ This class provides a set of methods to read, parse and answer
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24 questions about a single robots.txt file.
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25
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26 """
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27
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28 def __init__(self, url=''):
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29 self.entries = []
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30 self.default_entry = None
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31 self.disallow_all = 0
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32 self.allow_all = 0
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33 self.set_url(url)
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34 self.last_checked = 0
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35
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36 def mtime(self):
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37 """Returns the time the robots.txt file was last fetched.
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38
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39 This is useful for long-running web spiders that need to
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40 check for new robots.txt files periodically.
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41
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42 """
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43 return self.last_checked
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44
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45 def modified(self):
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46 """Sets the time the robots.txt file was last fetched to the
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47 current time.
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48
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49 """
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50 import time
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51 self.last_checked = time.time()
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52
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53 def set_url(self, url):
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54 """Sets the URL referring to a robots.txt file."""
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55 self.url = url
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56 self.host, self.path = urlparse.urlparse(url)[1:3]
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57
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58 def read(self):
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59 """Reads the robots.txt URL and feeds it to the parser."""
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60 opener = URLopener()
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61 f = opener.open(self.url)
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62 lines = []
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63 line = f.readline()
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64 while line:
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65 lines.append(line.strip())
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66 line = f.readline()
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67 self.errcode = opener.errcode
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68 if self.errcode == 401 or self.errcode == 403:
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69 self.disallow_all = 1
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70 _debug("disallow all")
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71 elif self.errcode >= 400:
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72 self.allow_all = 1
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73 _debug("allow all")
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74 elif self.errcode == 200 and lines:
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75 _debug("parse lines")
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76 self.parse(lines)
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77
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78 def _add_entry(self, entry):
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79 if "*" in entry.useragents:
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80 # the default entry is considered last
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81 self.default_entry = entry
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82 else:
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83 self.entries.append(entry)
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84
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85 def parse(self, lines):
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86 """parse the input lines from a robot.txt file.
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87 We allow that a user-agent: line is not preceded by
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88 one or more blank lines."""
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89 state = 0
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90 linenumber = 0
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91 entry = Entry()
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92
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93 for line in lines:
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94 linenumber = linenumber + 1
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95 if not line:
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96 if state==1:
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97 _debug("line %d: warning: you should insert"
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98 " allow: or disallow: directives below any"
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99 " user-agent: line" % linenumber)
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100 entry = Entry()
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101 state = 0
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102 elif state==2:
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103 self._add_entry(entry)
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104 entry = Entry()
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105 state = 0
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106 # remove optional comment and strip line
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107 i = line.find('#')
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108 if i>=0:
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109 line = line[:i]
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110 line = line.strip()
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111 if not line:
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112 continue
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113 line = line.split(':', 1)
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114 if len(line) == 2:
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115 line[0] = line[0].strip().lower()
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116 line[1] = urllib.unquote(line[1].strip())
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117 if line[0] == "user-agent":
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118 if state==2:
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119 _debug("line %d: warning: you should insert a blank"
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120 " line before any user-agent"
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121 " directive" % linenumber)
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122 self._add_entry(entry)
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123 entry = Entry()
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124 entry.useragents.append(line[1])
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125 state = 1
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126 elif line[0] == "disallow":
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127 if state==0:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
128 _debug("line %d: error: you must insert a user-agent:"
16074
7e55fa93f4db Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 16070
diff changeset
129 " directive before this line" % linenumber)
7887
efbb7e57e6f8 Give in to tabnanny
Guido van Rossum <guido@python.org>
parents: 5063
diff changeset
130 else:
16067
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parents: 12062
diff changeset
131 entry.rulelines.append(RuleLine(line[1], 0))
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
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parents: 12062
diff changeset
132 state = 2
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
133 elif line[0] == "allow":
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
134 if state==0:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
135 _debug("line %d: error: you must insert a user-agent:"
16074
7e55fa93f4db Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 16070
diff changeset
136 " directive before this line" % linenumber)
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
137 else:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
138 entry.rulelines.append(RuleLine(line[1], 1))
7887
efbb7e57e6f8 Give in to tabnanny
Guido van Rossum <guido@python.org>
parents: 5063
diff changeset
139 else:
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
140 _debug("line %d: warning: unknown key %s" % (linenumber,
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
141 line[0]))
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
142 else:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
143 _debug("line %d: error: malformed line %s"%(linenumber, line))
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
144 if state==2:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
145 self.entries.append(entry)
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
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parents: 12062
diff changeset
146 _debug("Parsed rules:\n%s" % str(self))
5063
f0731fa4447f Skip Montanaro's robots.txt parser.
Guido van Rossum <guido@python.org>
parents:
diff changeset
147
f0731fa4447f Skip Montanaro's robots.txt parser.
Guido van Rossum <guido@python.org>
parents:
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148
12062
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Guido van Rossum <guido@python.org>
parents: 7887
diff changeset
149 def can_fetch(self, useragent, url):
c43b38079228 Skip Montanaro:
Guido van Rossum <guido@python.org>
parents: 7887
diff changeset
150 """using the parsed robots.txt decide if useragent can fetch url"""
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parents: 16494
diff changeset
151 _debug("Checking robot.txt allowance for:\n user agent: %s\n url: %s" %
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
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parents: 16494
diff changeset
152 (useragent, url))
16067
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parents: 12062
diff changeset
153 if self.disallow_all:
22830
a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool.
Tim Peters <tim.peters@gmail.com>
parents: 22371
diff changeset
154 return False
16067
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Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
155 if self.allow_all:
22830
a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool.
Tim Peters <tim.peters@gmail.com>
parents: 22371
diff changeset
156 return True
16067
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Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
157 # search for given user agent matches
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parents: 12062
diff changeset
158 # the first match counts
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Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
159 url = urllib.quote(urlparse.urlparse(urllib.unquote(url))[2]) or "/"
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
160 for entry in self.entries:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
161 if entry.applies_to(useragent):
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
162 return entry.allowance(url)
22088
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
163 # try the default entry last
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
164 if self.default_entry:
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
165 return self.default_entry.allowance(url)
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
166 # agent not found ==> access granted
22830
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Tim Peters <tim.peters@gmail.com>
parents: 22371
diff changeset
167 return True
5063
f0731fa4447f Skip Montanaro's robots.txt parser.
Guido van Rossum <guido@python.org>
parents:
diff changeset
168
16067
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parents: 12062
diff changeset
169
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
170 def __str__(self):
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
171 ret = ""
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
172 for entry in self.entries:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
173 ret = ret + str(entry) + "\n"
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
174 return ret
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
175
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
176
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
177 class RuleLine:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
178 """A rule line is a single "Allow:" (allowance==1) or "Disallow:"
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
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parents: 12062
diff changeset
179 (allowance==0) followed by a path."""
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
180 def __init__(self, path, allowance):
22088
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
181 if path == '' and not allowance:
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
182 # an empty value means allow all
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
183 allowance = 1
16067
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Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
184 self.path = urllib.quote(path)
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
185 self.allowance = allowance
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
186
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
187 def applies_to(self, filename):
22088
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
188 return self.path=="*" or filename.startswith(self.path)
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
189
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
190 def __str__(self):
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
191 return (self.allowance and "Allow" or "Disallow")+": "+self.path
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
192
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
193
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
194 class Entry:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
195 """An entry has one or more user-agents and zero or more rulelines"""
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
196 def __init__(self):
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
197 self.useragents = []
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
198 self.rulelines = []
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
199
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
200 def __str__(self):
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
201 ret = ""
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
202 for agent in self.useragents:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
203 ret = ret + "User-agent: "+agent+"\n"
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
204 for line in self.rulelines:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
205 ret = ret + str(line) + "\n"
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
206 return ret
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
207
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
208 def applies_to(self, useragent):
16579
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
209 """check if this entry applies to the specified agent"""
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
210 # split the name token and make it lower case
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
211 useragent = useragent.split("/")[0].lower()
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
212 for agent in self.useragents:
16579
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
213 if agent=='*':
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
214 # we have the catch-all agent
22830
a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool.
Tim Peters <tim.peters@gmail.com>
parents: 22371
diff changeset
215 return True
16579
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Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
216 agent = agent.lower()
22088
736fb5aec9b3 Correct various errors:
Martin v. Löwis <martin@v.loewis.de>
parents: 19213
diff changeset
217 if useragent.find(agent) != -1:
22830
a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool.
Tim Peters <tim.peters@gmail.com>
parents: 22371
diff changeset
218 return True
a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool.
Tim Peters <tim.peters@gmail.com>
parents: 22371
diff changeset
219 return False
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
220
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
221 def allowance(self, filename):
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
222 """Preconditions:
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
223 - our agent applies to this entry
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
224 - filename is URL decoded"""
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
225 for line in self.rulelines:
16579
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
226 _debug((filename, str(line), line.allowance))
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
227 if line.applies_to(filename):
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
228 return line.allowance
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
229 return 1
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
230
16579
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
231 class URLopener(urllib.FancyURLopener):
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
232 def __init__(self, *args):
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
233 apply(urllib.FancyURLopener.__init__, (self,) + args)
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
234 self.errcode = 200
16616
e2a63584566f Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 16579
diff changeset
235
16579
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
236 def http_error_default(self, url, fp, errcode, errmsg, headers):
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
237 self.errcode = errcode
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
238 return urllib.FancyURLopener.http_error_default(self, url, fp, errcode,
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
239 errmsg, headers)
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
240
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
241 def _check(a,b):
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
242 if not b:
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
243 ac = "access denied"
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
244 else:
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
245 ac = "access allowed"
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
246 if a!=b:
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
247 print "failed"
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
248 else:
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
249 print "ok (%s)" % ac
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
diff changeset
250 print
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
251
12062
c43b38079228 Skip Montanaro:
Guido van Rossum <guido@python.org>
parents: 7887
diff changeset
252 def _test():
16067
fe36ab4b3e97 rewrite of robotparser.py by Bastian Kleineidam. Closes patch 102229.
Skip Montanaro <skip@pobox.com>
parents: 12062
diff changeset
253 global debug
5063
f0731fa4447f Skip Montanaro's robots.txt parser.
Guido van Rossum <guido@python.org>
parents:
diff changeset
254 rp = RobotFileParser()
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Skip Montanaro <skip@pobox.com>
parents: 12062
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255 debug = 1
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parents: 16494
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256
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Skip Montanaro <skip@pobox.com>
parents: 16494
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257 # robots.txt that exists, gotten to by redirection
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parents: 16494
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258 rp.set_url('http://www.musi-cal.com/robots.txt')
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parents: 16494
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259 rp.read()
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Skip Montanaro <skip@pobox.com>
parents: 16494
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260
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Skip Montanaro <skip@pobox.com>
parents: 16494
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261 # test for re.escape
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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262 _check(rp.can_fetch('*', 'http://www.musi-cal.com/'), 1)
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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263 # this should match the first rule, which is a disallow
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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264 _check(rp.can_fetch('', 'http://www.musi-cal.com/'), 0)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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265 # various cherry pickers
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Skip Montanaro <skip@pobox.com>
parents: 16494
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266 _check(rp.can_fetch('CherryPickerSE',
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
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parents: 16494
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267 'http://www.musi-cal.com/cgi-bin/event-search'
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
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parents: 16494
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268 '?city=San+Francisco'), 0)
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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269 _check(rp.can_fetch('CherryPickerSE/1.0',
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parents: 12062
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270 'http://www.musi-cal.com/cgi-bin/event-search'
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parents: 16494
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271 '?city=San+Francisco'), 0)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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272 _check(rp.can_fetch('CherryPickerSE/1.5',
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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273 'http://www.musi-cal.com/cgi-bin/event-search'
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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274 '?city=San+Francisco'), 0)
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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275 # case sensitivity
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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276 _check(rp.can_fetch('ExtractorPro', 'http://www.musi-cal.com/blubba'), 0)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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277 _check(rp.can_fetch('extractorpro', 'http://www.musi-cal.com/blubba'), 0)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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278 # substring test
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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279 _check(rp.can_fetch('toolpak/1.1', 'http://www.musi-cal.com/blubba'), 0)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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280 # tests for catch-all * agent
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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281 _check(rp.can_fetch('spam', 'http://www.musi-cal.com/search'), 0)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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282 _check(rp.can_fetch('spam', 'http://www.musi-cal.com/Musician/me'), 1)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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283 _check(rp.can_fetch('spam', 'http://www.musi-cal.com/'), 1)
a63dc59be0f9 The bulk of the credit for these changes goes to Bastian Kleineidam
Skip Montanaro <skip@pobox.com>
parents: 16494
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284 _check(rp.can_fetch('spam', 'http://www.musi-cal.com/'), 1)
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Skip Montanaro <skip@pobox.com>
parents: 16494
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285
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Skip Montanaro <skip@pobox.com>
parents: 16494
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286 # robots.txt that does not exist
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Skip Montanaro <skip@pobox.com>
parents: 16494
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287 rp.set_url('http://www.lycos.com/robots.txt')
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Skip Montanaro <skip@pobox.com>
parents: 16494
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288 rp.read()
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Skip Montanaro <skip@pobox.com>
parents: 16494
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289 _check(rp.can_fetch('Mozilla', 'http://www.lycos.com/search'), 1)
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Guido van Rossum <guido@python.org>
parents:
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290
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Skip Montanaro <skip@pobox.com>
parents: 12062
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291 if __name__ == '__main__':
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Guido van Rossum <guido@python.org>
parents: 7887
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292 _test()