attachment:lw2txtV2.py of LarpWiki2Text

   1 #!/usr/bin/env python
   2 #
   3 # Tilmann Haak <spam@thaak.de>
   4 # 2011-12-04
   5 # 2011-12-16 Allan Wegan <allanwegan@allanwegan.de>:
   6 #   - Retries on network (or wiki) error.
   7 #
   8 # - Download all pages from larpwiki.de
   9 # - Write each page into a text file, e.g. "LarpWiki.txt"
  10 
  11 import sys
  12 import xmlrpclib
  13 import time
  14 import string
  15 
  16 netRetryM = 23 # How often to retry each request before giving up.
  17 netRetryD = 0.5 # Seconds to wait initially before retrying a failed request.
  18 netRetryDFun = lambda oldDelay: oldDelay * 1.1
  19 
  20 # Retries a given function at most retriesMax times after failing:
  21 def retryOnError(fun, retriesMax, retryDelay, retryDelayFun):
  22   while True:
  23     try:
  24       return fun()
  25     except:
  26       if retriesMax < 1: raise
  27       print "Error:", sys.exc_info()
  28       print("Waiting %f seconds before retrying (Retries left: %i)..." % (
  29         retryDelay, retriesMax
  30       ))
  31       time.sleep(retryDelay)
  32       retriesMax -= 1
  33       retryDelay = retryDelayFun(retryDelay)
  34       continue
  35 
  36 # stores a text in a file:
  37 def writeFile(path, content):
  38   fd = open(path, 'w')
  39   fd.write(content)
  40   fd.close()
  41 
  42 # Wiki accessor:
  43 wiki = xmlrpclib.ServerProxy("http://www.larpwiki.de/?action=xmlrpc2")
  44 
  45 # get all pages on the wiki (sorted):
  46 pagenames = retryOnError(
  47   lambda: sorted(wiki.getAllPages()), netRetryM, netRetryD, netRetryDFun
  48 )
  49 
  50 # dump pages to current dir:
  51 count = 1
  52 for pagename in pagenames:
  53   filename = string.replace(pagename, '/', '%2F') + '.txt'
  54   print("%i/%i %s" % (count, len(pagenames), filename))
  55   text = retryOnError(
  56     lambda: writeFile(filename, wiki.getPage(pagename).encode('utf-8')), 
  57     netRetryM, netRetryD, netRetryDFun
  58   )
  59   time.sleep(0.05) # don't hammer on the wiki!
  60   count += 1