1 2 3 4 5 6 7 8 9 10 |
|
import feedparser import time import datetime import tempfile import linecache # temporary file used to store rss entries filename = "/tmp/rsstimer.tmp" # interval in seconds between rss updates updateinterval = 60 # lcd4linux permits only 1 parameter passed to the function # we send the rss title id with the ! spacer def getfeed(rssfeed): print rssfeed idx = 0 feed = rssfeed.split('!')[0] idx = int(rssfeed.split('!')[-1]) if (idx <= 0): idx = 1; oldfeed = fgetfeed() if (oldfeed != feed): lastupdate = 0 print "Feed changed refresing" else: lastupdate = fgetseconds() if (lastupdate <= 0): saverss(feed) else: now = getseconds() delta = now - lastupdate if (delta > updateinterval): print "Last update: " + str(delta) + " seconds ago. Updating the rss entries." saverss(feed) # first line in the file is the timestamp second is the feed url output = linecache.getline(filename, idx + 2) print output return output def getseconds(): ts = datetime.datetime.now() return time.mktime(ts.timetuple()) def fgetseconds(): try: f = open(filename, "r") except IOError: print "Cannot get timestamp from file" return 0 else: return float(f.readline()) def fgetfeed(): try: f = open(filename, "r") except IOError: print "Cannot get feed from file" return ' ' else: # skip first line f.readline() return f.readline().rstrip("\n") def saverss(rssfeed): linecache.clearcache() f = open(filename, "w") # save timestamp f.write(str(getseconds())) f.write("\n") # save feed url f.write(rssfeed) f.write("\n") print "Downloading the rss feed from: " + rssfeed feed = feedparser.parse(rssfeed) for entry in feed.entries: f.write(entry.title) f.write("\n") f.close print "Done" def printrss(): f = open(filename, "r") f.readline() for line in f: print line #print getfeed("http://slashdot.org/slashdot.rdf!5") print getfeed("http://www.linux.com/feed?theme=rss!1") dvb-t/uk-Saddleworth?h=debian/1.1.1%2brev1500-1&id=891c51ff368ed700dec6025eeb47ce4d96f76418'>diffstats