import sys
import os
import stat
+import httplib
import urllib
import feedparser
"pound": "£",
"copy": "©",
"apos": "'",
- "quote": "\"",
+ "quot": "\"",
"nbsp": " ",
}
class HTML2Text(HTMLParser):
-
+
def __init__(self):
self.inheadingone = False
self.inheadingtwo = False
elif tag.lower() == "a":
self.inlink = True
elif tag.lower() == "br":
- if self.inparagraph:
- self.text = self.text \
- + u'\n'.join( \
- textwrap.wrap(self.currentparagraph, 70)) \
- + u'\n'
- self.currentparagraph = ""
- elif self.inblockquote:
- self.text = self.text \
- + u'\n> ' \
- + u'\n> '.join( \
- [a.strip() \
- for a in textwrap.wrap(self.blockquote, 68) \
- ]) \
- + u'\n'
- self.blockquote = u''
- else:
- self.text = self.text + u'\n'
+ self.handle_br()
elif tag.lower() == "blockquote":
self.inblockquote = True
self.text = self.text + u'\n'
def handle_startendtag(self, tag, attrs):
if tag.lower() == "br":
+ self.handle_br()
+
+ def handle_br(self):
if self.inparagraph:
self.text = self.text \
+ u'\n'.join( \
data = data + "\n".join(textwrap.wrap(self.currentparagraph, 70))
return data
+def open_url(method, url):
+ redirectcount = 0
+ while redirectcount < 3:
+ (type, rest) = urllib.splittype(url)
+ (host, path) = urllib.splithost(rest)
+ (host, port) = urllib.splitport(host)
+ if port == None:
+ port = 80
+ try:
+ conn = httplib.HTTPConnection("%s:%s" %(host, port))
+ conn.request(method, path)
+ response = conn.getresponse()
+ if response.status in [301, 302, 303, 307]:
+ headers = response.getheaders()
+ for header in headers:
+ if header[0] == "location":
+ url = header[1]
+ elif response.status == 200:
+ return response
+ except:
+ pass
+ redirectcount = redirectcount + 1
+ return None
+
def parse_and_deliver(maildir, url, statedir):
- fp = feedparser.parse(url)
+ feedhandle = None
+ headers = None
+ # first check if we know about this feed already
+ feeddb = dbm.open(os.path.join(statedir, "feeds"), "c")
+ if feeddb.has_key(url):
+ data = feeddb[url]
+ data = cgi.parse_qs(data)
+ response = open_url("HEAD", url)
+ headers = None
+ if response:
+ headers = response.getheaders()
+ ischanged = False
+ try:
+ for header in headers:
+ if header[0] == "content-length":
+ if header[1] != data["content-length"][0]:
+ ischanged = True
+ elif header[0] == "etag":
+ if header[1] != data["etag"][0]:
+ ischanged = True
+ elif header[0] == "last-modified":
+ if header[1] != data["last-modified"][0]:
+ ischanged = True
+ elif header[0] == "content-md5":
+ if header[1] != data["content-md5"][0]:
+ ischanged = True
+ except:
+ ischanged = True
+ if ischanged:
+ response = open_url("GET", url)
+ if response != None:
+ headers = response.getheaders()
+ feedhandle = response
+ else:
+ sys.stderr.write("Failed to fetch feed: %s\n" %(url))
+ return
+ else:
+ return # don't need to do anything, nothings changed.
+ else:
+ response = open_url("GET", url)
+ if response != None:
+ headers = response.getheaders()
+ feedhandle = response
+ else:
+ sys.stderr.write("Failed to fetch feed: %s\n" %(url))
+ return
+
+ fp = feedparser.parse(feedhandle)
db = dbm.open(os.path.join(statedir, "seen"), "c")
for item in fp["items"]:
# have we seen it before?
prevmessageid = None
+ # check if there's a guid too - if that exists and we match the md5,
+ # return
+ if item.has_key("guid"):
+ if db.has_key(url + "|" + item["guid"]):
+ data = db[url + "|" + item["guid"]]
+ data = cgi.parse_qs(data)
+ if data["contentmd5"][0] == md5sum:
+ continue
+
if db.has_key(url + "|" + item["link"]):
data = db[url + "|" + item["link"]]
data = cgi.parse_qs(data)
msg.add_header("To", "\"%s\" <rss2maildir@localhost>" %(url))
if prevmessageid:
msg.add_header("References", prevmessageid)
- createddate = datetime.datetime(*item["updated_parsed"][0:6]) \
+ createddate = datetime.datetime.now() \
.strftime("%a, %e %b %Y %T -0000")
+ try:
+ createddate = datetime.datetime(*item["updated_parsed"][0:6]) \
+ .strftime("%a, %e %b %Y %T -0000")
+ except:
+ pass
msg.add_header("Date", createddate)
msg.add_header("Subject", item["title"])
msg.set_default_type("text/plain")
textparser = HTML2Text()
textparser.feed(content.encode("utf-8"))
textcontent = textparser.gettext()
+ textcontent = "%s\n\nItem URL: %s" %( \
+ textcontent, \
+ item["link"] )
textpart = MIMEText(textcontent.encode("utf-8"), "plain", "utf-8")
msg.attach(textpart)
msg.attach(htmlpart)
# now add to the database about the item
if prevmessageid:
messageid = prevmessageid + " " + messageid
- data = urllib.urlencode((
- ("message-id", messageid), \
- ("created", createddate), \
- ("contentmd5", md5sum) \
- ))
- db[url + "|" + item["link"]] = data
+ if item.has_key("guid") and item["guid"] != item["link"]:
+ data = urllib.urlencode(( \
+ ("message-id", messageid), \
+ ("created", createddate), \
+ ("contentmd5", md5sum) \
+ ))
+ db[url + "|" + item["guid"]] = data
+ try:
+ data = db[url + "|" + item["link"]]
+ data = cgi.parse_qs(data)
+ newdata = urllib.urlencode(( \
+ ("message-id", messageid), \
+ ("created", data["created"][0]), \
+ ("contentmd5", data["contentmd5"][0]) \
+ ))
+ db[url + "|" + item["link"]] = newdata
+ except:
+ db[url + "|" + item["link"]] = data
+ else:
+ data = urllib.urlencode(( \
+ ("message-id", messageid), \
+ ("created", createddate), \
+ ("contentmd5", md5sum) \
+ ))
+ db[url + "|" + item["link"]] = data
+
+ if headers:
+ data = []
+ for header in headers:
+ if header[0] in ["content-md5", "etag", "last-modified", "content-length"]:
+ data.append((header[0], header[1]))
+ if len(data) > 0:
+ data = urllib.urlencode(data)
+ feeddb[url] = data
db.close()
+ feeddb.close()
# first off, parse the command line arguments
projects / rss2maildir.git / blobdiff