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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2007, One Laptop Per Child
#
# License: GPLv2
#
# Usage:
# expandtemplates.py <dbdir/dbfile> 2>expand.log | bzip -c -9 - > foo/bar.processed
#
from __future__ import with_statement
import sys
reload(sys)
# Important! We'll be using stdout and stderr with
# UTF-8 chars. Without this, errors galore.
sys.setdefaultencoding('utf-8')
sys.path.append('.')
import os, select, time
import subprocess
import codecs
from StringIO import StringIO
import cgi
import errno
import tempfile
import re
import wp
import xml.dom.minidom
from pylru import lrudecorator
START_HEADING = chr(1)
START_TEXT = chr(2)
END_TEXT = chr(3)
# Uncomment to print out a large dump from the template expander.
#os.environ['DEBUG_EXPANDER'] = '1'
try:
from hashlib import md5
except ImportError:
from md5 import md5
import mwlib.htmlwriter
from mwlib import parser, scanner, expander
class ArticleIndex:
# Prepare an in-memory index, using the already generated
# index file.
def __init__(self, path):
self.article_index = []
with codecs.open(path, mode='r', encoding='utf-8') as f:
for line in f.readlines():
m = re.search(r'(.*?)\s*\d+$', line)
if m is None:
raise AssertionError("Match didn't work")
self.article_index.append(m.group(1))
self.article_index.sort()
def __contains__(self, x):
return x in self.article_index
def rawindex(self):
return self.article_index
class WPWikiDB:
"""Retrieves article contents for mwlib."""
def getRawArticle(self, title, followRedirects=True):
# Retrieve article text, recursively following #redirects.
if title == '':
return ''
oldtitle = ""
while True:
# Replace underscores with spaces in title.
title = title.replace("_", " ")
# Capitalize the first letter of the article -- Trac #6991.
title = title[0].capitalize() + title[1:]
if title == oldtitle:
article_text = ""
break
article_text = wp_load_article(title.encode('utf8'))
if article_text == None:
# something's wrong
return None
#sys.stderr.write("!!!%s!!!" % article_text)
article_text = unicode(article_text, 'utf8')
# To see unmodified article_text, uncomment here.
# print article_text
if not followRedirects:
break
m = re.match(r'^\s*\#?redirect\s*\:?\s*\[\[(.*)\]\]', article_text, re.IGNORECASE|re.MULTILINE)
if not m:
break
oldtitle = title
title = m.group(1)
# Stripping leading & trailing whitespace fixes template expansion.
article_text = article_text.lstrip()
article_text = article_text.rstrip()
return article_text
def getTemplate(self, title, followRedirects=False):
return self.getRawArticle(title)
def expandArticle(self, article_text, title):
template_expander = expander.Expander(article_text, pagename=title, wikidb=self)
return template_expander.expandTemplates()
def getExpandedArticle(self, title):
return self.expandArticle(self.getRawArticle(title), title)
class HTMLOutputBuffer:
"""Buffers output and converts to utf8 as needed."""
def __init__(self):
self.buffer = ''
def write(self, obj):
if isinstance(obj, unicode):
self.buffer += obj.encode('utf8')
else:
self.buffer += obj
def getvalue(self):
return self.buffer
def load_db(dbname):
wp.wp_load_dump(
dbname + '.processed',
dbname + '.locate.db',
dbname + '.locate.prefixdb',
dbname + '.blocks.db')
# Cache articles and specially templates
@lrudecorator(100)
def wp_load_article(title):
return wp.wp_load_article(title)
#return wp_load_article_fork(title)
# Fork the wp lookup as a subprocess, so it can return None on error
# wp.wp_load_article() exit(1)s on error .
# We pay a 20% wall time penalty in forking and reading/waiting for
# the child process.
def wp_load_article_fork(title):
pid, fd = os.forkpty()
if pid == 0:
# child only does wp lookup
article_text = wp.wp_load_article(title)
sys.stdout.write(article_text)
sys.exit(os.EX_OK)
article_text = ''
while True: #os.kill(pid, 0):
try: # try catch, as it may have died
b = os.read(fd, 1024 * 1024)
except:
break
if not b:
break
article_text = article_text + b
(pid, ex_status) = os.waitpid(pid, 0)
#print "%s %s " % (pid, ex_status)
if ex_status == os.EX_OK:
return article_text
else:
return None
# __main__
# prep a isting of redirects. wp.so hides them from
# us, which would bloat our
load_db(sys.argv[1])
index = ArticleIndex('%s.index.txt' % sys.argv[1])
rawindex = index.rawindex()
wikidb = WPWikiDB()
rx = re.compile('(Plantilla|Template|Wikipedia):')
for title in rawindex: #['1812 invasion of Russia', '1857 revolt']: #rawindex:
if rx.match(title):
continue
sys.stderr.write('PROCESSING: ' + title + "\n")
article_text = wikidb.getRawArticle(title, followRedirects=False)
if article_text == None:
sys.stderr.write('ERROR - SKIPPING: ' + title + "\n")
continue
# we don't expand nor follow redirects
m = re.match(r'^\s*\#?redirect\s*\:?\s*\[\[(.*)\]\]',
article_text, re.IGNORECASE|re.MULTILINE)
if not m:
article_text = wikidb.getExpandedArticle(title)
sys.stdout.write(START_HEADING + '\n')
sys.stdout.write(title + '\n')
# in Python 2.x, len() over a unicode string
# gives us the bytecount. Not compat w Python 3.
sys.stdout.write("%s\n" % len(article_text))
sys.stdout.write(START_TEXT + '\n')
sys.stdout.write(article_text + '\n')
sys.stdout.write(END_TEXT + '\n')
# break
|
