Huge commit: wsgiref-like. "Progress" dropped.
Can now run as HTTP server. Main functions split again (Init, Fetch). LIM/MAX_STUFF moved to function body (this still has to be improved). "progress" too hard to get to work with wsgiref, dropped. This whole thing should make it easier to maintain code (no more ifs everywhere).master
parent
f12031cbdb
commit
bd1c6a5be6
204
morss.py
204
morss.py
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@ -26,6 +26,10 @@ import urllib2
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import chardet
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import urlparse
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import wsgiref.util
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import wsgiref.simple_server
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import wsgiref.handlers
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from gzip import GzipFile
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from StringIO import StringIO
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@ -54,7 +58,7 @@ FBAPPTOKEN = FBAPPID + '|' + FBSECRET
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PROTOCOL = ['http', 'https', 'ftp']
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if 'REQUEST_URI' in os.environ:
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if 'SCRIPT_NAME' in os.environ:
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httplib.HTTPConnection.debuglevel = 1
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import cgitb
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@ -63,9 +67,9 @@ if 'REQUEST_URI' in os.environ:
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class MorssException(Exception):
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pass
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def log(txt):
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if DEBUG:
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if HOLD:
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def log(txt, force=False):
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if DEBUG or force:
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if 'REQUEST_URI' in os.environ:
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open('morss.log', 'a').write("%s\n" % repr(txt))
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else:
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print repr(txt)
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@ -84,16 +88,21 @@ def countWord(txt):
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return 0
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class ParseOptions:
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def __init__(self):
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def __init__(self, environ=False):
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self.url = ''
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self.options = {}
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roptions = []
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if 'REQUEST_URI' in os.environ:
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self.url = os.environ['REQUEST_URI'][1:]
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if environ:
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if 'REQUEST_URI' in environ:
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self.url = environ['REQUEST_URI'][1:]
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else:
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self.url = environ['PATH_INFO'][1:]
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if 'REDIRECT_URL' not in os.environ:
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self.url = self.url[len(os.environ['SCRIPT_NAME']):]
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if self.url.startswith('/morss.py'):
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self.url = self.url[10:]
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elif self.url.startswith('morss.py'):
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self.url = self.url[9:]
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if self.url.startswith(':'):
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roptions = self.url.split('/')[0].split(':')[1:]
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@ -475,7 +484,7 @@ def Fill(item, cache, feedurl='/', fast=False):
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return True
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def Gather(url, cachePath, options):
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def Init(url, cachePath, options):
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# url clean up
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log(url)
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@ -492,6 +501,9 @@ def Gather(url, cachePath, options):
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cache = Cache(cachePath, url, options.proxy)
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log(cache._hash)
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return (url, cache)
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def Fetch(url, cache, options):
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# do some useful facebook work
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feedify.PreWorker(url, cache)
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@ -545,7 +557,7 @@ def Gather(url, cachePath, options):
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match = lxml.html.fromstring(xml).xpath("//link[@rel='alternate'][@type='application/rss+xml' or @type='application/atom+xml']/@href")
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if len(match):
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link = urlparse.urljoin(url, match[0])
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return Gather(link, cachePath, options)
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return Fetch(link, cachePath, options)
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else:
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log('no-link html')
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raise MorssException('Link provided is an HTML page, which doesn\'t link to a feed')
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@ -553,14 +565,35 @@ def Gather(url, cachePath, options):
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log('random page')
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raise MorssException('Link provided is not a valid feed')
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cache.save()
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return rss
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def Gather(rss, url, cache, options):
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log('YEAH')
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size = len(rss.items)
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startTime = time.time()
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# custom settings
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global LIM_ITEM
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global LIM_TIME
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global MAX_ITEM
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global MAX_TIME
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if options.progress:
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MAX_TIME = -1
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LIM_TIME = 15
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MAX_ITEM = -1
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LIM_ITEM = -1
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if options.cache:
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MAX_TIME = 0
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if options.OFCOURSENOT:
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log('welcome home')
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LIM_ITEM = -1
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LIM_TIME = -1
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MAX_ITEM = -1
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MAX_TIME = -1
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# set
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def runner(queue):
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@ -601,14 +634,6 @@ def Gather(url, cachePath, options):
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if not options.keep:
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del item.desc
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if options.progress:
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end = size if MAX_ITEM == -1 else min(MAX_ITEM, size)
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if options.json:
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sys.stdout.write(json.dumps((i+1, end, item), default=lambda o: dict(o)) + "\n")
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else:
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sys.stdout.write("%s/%s\n" % (i+1, end))
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sys.stdout.flush()
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queue = Queue.Queue()
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for i in range(THREADS):
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@ -627,26 +652,93 @@ def Gather(url, cachePath, options):
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return rss
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if __name__ == '__main__':
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def cgi_app(environ, start_response):
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options = ParseOptions(environ)
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url = options.url
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headers = {}
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global DEBUG
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DEBUG = options.debug
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if 'HTTP_IF_NONE_MATCH' in environ:
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if not options.force and not options.facebook and time.time() - int(environ['HTTP_IF_NONE_MATCH'][1:-1]) < DELAY:
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headers['status'] = '304 Not Modified'
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start_response(headers['status'], headers.items())
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log(url)
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log('etag good')
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return []
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headers['status'] = '200 OK'
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headers['etag'] = '"%s"' % int(time.time())
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if options.html:
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headers['content-type'] = 'text/html'
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elif options.debug or options.txt:
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headers['content-type'] = 'text/plain'
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elif options.json:
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headers['content-type'] = 'application/json'
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else:
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headers['content-type'] = 'text/xml'
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url, cache = Init(url, os.getcwd() + '/cache', options)
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RSS = Fetch(url, cache, options)
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RSS = Gather(RSS, url, cache, options)
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if headers['content-type'] == 'text/xml':
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headers['content-type'] = RSS.mimetype
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start_response(headers['status'], headers.items())
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if not DEBUG and not options.silent:
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if options.json:
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if options.indent:
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return json.dumps(RSS, sort_keys=True, indent=4, default=lambda x: dict(x))
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else:
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return json.dumps(RSS, sort_keys=True, default=lambda x: dict(x))
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else:
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return RSS.tostring(xml_declaration=True, encoding='UTF-8')
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log('done')
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def cgi_wrapper(environ, start_response):
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try:
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return cgi_app(environ, start_response)
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except (KeyboardInterrupt, SystemExit):
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raise
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except MorssException as e:
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headers = {}
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headers['status'] = '500 Oops'
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headers['content-type'] = 'text/plain'
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start_response(headers['status'], headers.items(), sys.exc_info())
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return 'Internal Error: %s' % e.message
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except Exception as e:
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headers = {}
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headers['status'] = '500 Oops'
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headers['content-type'] = 'text/plain'
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start_response(headers['status'], headers.items(), sys.exc_info())
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return 'Unknown Error: %s' % e.message
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def cli_app():
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options = ParseOptions()
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url = options.url
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DEBUG = bool(options.debug)
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global DEBUG
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DEBUG = options.debug
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if 'REQUEST_URI' in os.environ:
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HOLD = True
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url, cache = Init(url, os.path.expanduser('~/.cache/morss'), options)
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RSS = Fetch(url, cache, options)
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RSS = Gather(RSS, url, cache, options)
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if 'HTTP_IF_NONE_MATCH' in os.environ:
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if not options.force and not options.facebook and time.time() - int(os.environ['HTTP_IF_NONE_MATCH'][1:-1]) < DELAY:
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print 'Status: 304'
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print
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log(url)
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log('etag good')
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sys.exit(0)
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cachePath = os.getcwd() + '/cache'
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if not DEBUG and not options.silent:
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if options.json:
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if options.indent:
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print json.dumps(RSS, sort_keys=True, indent=4, default=lambda x: dict(x))
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else:
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cachePath = os.path.expanduser('~') + '/.cache/morss'
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print json.dumps(RSS, sort_keys=True, default=lambda x: dict(x))
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else:
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print RSS.tostring(xml_declaration=True, encoding='UTF-8')
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log('done')
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if options.facebook:
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facebook = Cache(cachePath, 'facebook', persistent=True, dic=True)
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@ -685,37 +777,23 @@ if __name__ == '__main__':
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sys.exit(0)
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def main():
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if 'REQUEST_URI' in os.environ:
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print 'Status: 200'
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print 'ETag: "%s"' % int(time.time())
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wsgiref.handlers.CGIHandler().run(cgi_wrapper)
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elif len(sys.argv) <= 1:
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httpd = wsgiref.simple_server.make_server('', 8080, cgi_wrapper)
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httpd.serve_forever()
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if options.html:
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print 'Content-Type: text/html'
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elif options.debug or options.txt:
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print 'Content-Type: text/plain'
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elif options.progress:
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print 'Content-Type: application/octet-stream'
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elif options.json:
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print 'Content-Type: application/json'
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else:
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print 'Content-Type: text/xml'
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print ''
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try:
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cli_app()
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except (KeyboardInterrupt, SystemExit):
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raise
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except MorssException as e:
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print 'Internal Error: %s' % e.message
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except Exception as e:
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print 'Unknown Error: %s' % e.message
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HOLD = False
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RSS = Gather(url, cachePath, options)
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if RSS is not False and not options.progress and not DEBUG and not options.silent:
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if options.json:
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if options.indent:
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print json.dumps(RSS, sort_keys=True, indent=4, default=lambda x: dict(x))
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else:
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print json.dumps(RSS, sort_keys=True, default=lambda x: dict(x))
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else:
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print RSS.tostring(xml_declaration=True, encoding='UTF-8')
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if RSS is False and 'progress' not in options:
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print 'Error fetching feed.'
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log('done')
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if __name__ == '__main__':
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main()
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