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
|
#!/usr/bin/env python
"""PostgreSQL Planet Aggregator
This file contains the functions to generate output RSS and
HTML data from what's currently in the database.
Copyright (C) 2008 PostgreSQL Global Development Group
"""
import psycopg2
import psycopg2.extensions
import PyRSS2Gen
import ConfigParser
import datetime
import os.path
import sys
import tidy
import urllib
from django.template import Context
from django.template.loader import get_template
from django.conf import settings
from HTMLParser import HTMLParser
from planethtml import *
class Generator:
def __init__(self,db):
self.db = db
self.tidyopts = dict( drop_proprietary_attributes=1,
alt_text='',
hide_comments=1,
output_xhtml=1,
show_body_only=1,
clean=1,
char_encoding='utf8',
)
self.items = []
self.feeds = []
self.staticfiles = ['policy','add']
settings.configure(
TEMPLATE_DIRS=('template',),
)
def Generate(self):
rss = PyRSS2Gen.RSS2(
title = 'Planet PostgreSQL',
link = 'http://planet.postgresql.org',
description = 'Planet PostgreSQL',
generator = 'Planet PostgreSQL',
lastBuildDate = datetime.datetime.utcnow())
rssshort = PyRSS2Gen.RSS2(
title = 'Planet PostgreSQL (short)',
link = 'http://planet.postgresql.org',
description = 'Planet PostgreSQL (short)',
generator = 'Planet PostgreSQL',
lastBuildDate = datetime.datetime.utcnow())
psycopg2.extensions.register_type(psycopg2.extensions.UNICODE)
self.db.set_client_encoding('UTF8')
c = self.db.cursor()
c.execute("SET TIMEZONE=GMT")
c.execute("SELECT guid,link,dat,title,txt,name,blogurl,guidisperma FROM planet.posts INNER JOIN planet.feeds ON planet.feeds.id=planet.posts.feed WHERE planet.feeds.approved AND NOT planet.posts.hidden ORDER BY dat DESC LIMIT 30")
for post in c.fetchall():
desc = self.TruncateAndCleanDescription(post[4])
rss.items.append(PyRSS2Gen.RSSItem(
title=post[5] + ': ' + post[3],
link=post[1],
guid=PyRSS2Gen.Guid(post[0],post[7]),
pubDate=post[2],
description=post[4]))
rssshort.items.append(PyRSS2Gen.RSSItem(
title=post[5] + ': ' + post[3],
link=post[1],
guid=PyRSS2Gen.Guid(post[0],post[7]),
pubDate=post[2],
description=desc))
self.items.append(PlanetPost(post[0], post[1], post[2], post[3], post[5], post[6], desc))
c.execute("SELECT name,blogurl,feedurl FROM planet.feeds WHERE approved ORDER BY name")
for feed in c.fetchall():
self.feeds.append(PlanetFeed(feed[0], feed[1], feed[2]))
rss.write_xml(open("www/rss20.xml","w"), encoding='utf-8')
rssshort.write_xml(open("www/rss20_short.xml","w"), encoding='utf-8')
self.WriteFromTemplate('index.tmpl', 'www/index.html')
for staticfile in self.staticfiles:
self.UpdateStaticFile(staticfile)
def WriteFromTemplate(self, templatename, outputname):
tmpl = get_template(templatename)
f = open(outputname, "w")
f.write(tmpl.render(Context({
'feeds': self.feeds,
'posts': self.items,
})).encode('utf-8'))
f.close()
def UpdateStaticFile(self, filename):
if not os.path.exists("www/%s.html" % (filename)) or \
os.path.getmtime("www/%s.html" % (filename)) < os.path.getmtime("template/%s.tmpl" % (filename)):
print "Updating %s.html" % (filename)
self.WriteFromTemplate("%s.tmpl" % (filename), "www/%s.html" % (filename))
def TruncateAndCleanDescription(self, txt):
# First apply Tidy
txt = unicode(str(tidy.parseString(txt.encode('utf-8'), **self.tidyopts)),'utf8')
# Then truncate as necessary
ht = HtmlTruncator(4096)
ht.feed(txt)
out = ht.GetText()
# Remove initial <br /> tags
while out.startswith('<br'):
out = out[out.find('>')+1:]
return out
class HtmlTruncator(HTMLParser):
def __init__(self, maxlen):
HTMLParser.__init__(self)
self.len = 0
self.maxlen = maxlen
self.fulltxt = ''
self.trunctxt = ''
self.tagstack = []
self.skiprest = False
def feed(self, txt):
txt = txt.lstrip()
self.fulltxt += txt
HTMLParser.feed(self, txt)
def handle_startendtag(self, tag, attrs):
if self.skiprest: return
self.trunctxt += self.get_starttag_text()
def quoteurl(self, str):
p = str.split(":",2)
return p[0] + ":" + urllib.quote(p[1])
def cleanhref(self, attrs):
if attrs[0] == 'href':
return 'href', self.quoteurl(attrs[1])
return attrs
def handle_starttag(self, tag, attrs):
if self.skiprest: return
self.trunctxt += "<" + tag
self.trunctxt += (' '.join([(' %s="%s"' % (k,v)) for k,v in map(self.cleanhref, attrs)]))
self.trunctxt += ">"
self.tagstack.append(tag)
def handle_endtag(self, tag):
if self.skiprest: return
self.trunctxt += "</" + tag + ">"
self.tagstack.pop()
def handle_entityref(self, ref):
self.len += 1
if self.skiprest: return
self.trunctxt += "&" + ref + ";"
def handle_data(self, data):
self.len += len(data)
if self.skiprest: return
self.trunctxt += data
if self.len > self.maxlen:
# Passed max length, so truncate text as close to the limit as possible
self.trunctxt = self.trunctxt[0:len(self.trunctxt)-(self.len-self.maxlen)]
# Now append any tags that weren't properly closed
self.tagstack.reverse()
for tag in self.tagstack:
self.trunctxt += "</" + tag + ">"
self.skiprest = True
# Finally, append the continuation chars
self.trunctxt += "[...]"
def GetText(self):
if self.len > self.maxlen:
return self.trunctxt
else:
return self.fulltxt
if __name__=="__main__":
c = ConfigParser.ConfigParser()
c.read('planet.ini')
Generator(psycopg2.connect(c.get('planet','db'))).Generate()
|
