2012-06-20 20:41:04 +00:00
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# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2004-2005 Tristan Seligmann and Jonathan Jacobs
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2012-06-20 19:58:13 +00:00
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import os.path
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import time
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import rss
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import urllib
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import util
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class EventHandler(object):
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def __init__(self, basepath, baseurl):
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self.basepath = basepath
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self.baseurl = baseurl or self.getBaseUrl()
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def getBaseUrl(self):
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'''Return a file: URL that probably points to the basedir.
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This is used as a halfway sane default when the base URL is not
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provided; not perfect, but should work in most cases.'''
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components = util.splitpath(os.path.abspath(self.basepath))
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url = '/'.join([urllib.quote(component, '') for component in components])
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return 'file:///' + url + '/'
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def getUrlFromFilename(self, filename):
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components = util.splitpath(util.getRelativePath(self.basepath, filename))
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url = '/'.join([urllib.quote(component, '') for component in components])
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return self.baseurl + url
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def start(self):
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pass
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def comicDownloaded(self, comic, filename):
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pass
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def end(self):
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pass
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class TextEventHandler(EventHandler):
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pass
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class RSSEventHandler(EventHandler):
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def RFC822Date(self, indate):
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return time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(indate))
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def getFilename(self):
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return os.path.abspath(os.path.join(self.basepath, 'dailydose.rss'))
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def start(self):
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today = time.time()
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yesterday = today - 86400
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today = time.localtime(today)
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yesterday = time.localtime(yesterday)
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link = 'https://github.com/wummel/dosage'
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self.rssfn = self.getFilename()
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if os.path.exists(self.rssfn):
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self.newfile = False
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self.rss = rss.parseFeed(self.rssfn, yesterday)
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else:
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self.newfile = True
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self.rss = rss.Feed('Daily Dosage', link, 'Comics for %s' % time.strftime('%Y/%m/%d', today))
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def comicDownloaded(self, comic, filename):
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url = self.getUrlFromFilename(filename)
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args = (
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'%s - %s' % (comic, os.path.basename(filename)),
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url,
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'<a href="%s">View Comic</a>' % (url,),
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self.RFC822Date(time.time())
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)
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if self.newfile:
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self.newfile = False
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self.rss.addItem(*args)
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else:
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self.rss.insertHead(*args)
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def end(self):
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self.rss.write(self.rssfn)
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class HtmlEventHandler(EventHandler):
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def fnFromDate(self, date):
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fn = time.strftime('comics-%Y%m%d.html', date)
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fn = os.path.join(self.basepath, 'html', fn)
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fn = os.path.abspath(fn)
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return fn
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def start(self):
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today = time.time()
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yesterday = today - 86400
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tomorrow = today + 86400
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today = time.localtime(today)
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yesterday = time.localtime(yesterday)
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tomorrow = time.localtime(tomorrow)
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fn = self.fnFromDate(today)
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assert not os.path.exists(fn), 'Comic page for today already exists!'
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d = os.path.dirname(fn)
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if not os.path.isdir(d):
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os.makedirs(d)
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yesterdayUrl = self.getUrlFromFilename(self.fnFromDate(yesterday))
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tomorrowUrl = self.getUrlFromFilename(self.fnFromDate(tomorrow))
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self.html = file(fn, 'w')
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self.html.write('''<html>
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<head>
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<title>Comics for %s</title>
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</head>
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<body>
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<a href="%s">Previous Day</a> | <a href="%s">Next Day</a>
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<ul>
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''' % (time.strftime('%Y/%m/%d', today), yesterdayUrl, tomorrowUrl))
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self.lastComic = None
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def comicDownloaded(self, comic, filename):
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if self.lastComic != comic:
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self.newComic(comic)
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url = self.getUrlFromFilename(filename)
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self.html.write(' <li><a href="%s">%s</a></li>\n' % (url, os.path.basename(filename)))
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def newComic(self, comic):
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if self.lastComic is not None:
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self.html.write(' </ul>\n')
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self.lastComic = comic
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self.html.write(''' <li>%s</li>
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<ul>
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''' % (comic,))
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def end(self):
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if self.lastComic is not None:
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self.html.write(' </ul>\n')
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self.html.write('''</ul>
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</body>
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</html>''')
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self.html.close()
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handlers = {
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'text': TextEventHandler,
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'html': HtmlEventHandler,
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'rss': RSSEventHandler,
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}
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def getHandlers():
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l = handlers.keys()
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l.sort()
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return l
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def installHandler(name=None, basepath=None, baseurl=None):
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global handler
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if name is None:
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name = 'text'
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if basepath is None:
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basepath = '.'
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handler = handlers[name](basepath, baseurl)
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installHandler()
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