В итоге я воспользовался библиотекой gdata и создал свой собственный сводник блогов, который использует библиотеку gdata для извлечения блога Blogspot в Google App Engine (нетрудно было бы перенести его на другие платформы). Код ниже. Чтобы использовать его, сначала установите константу blog_id_constant
, а затем вызовите get_blog_info
, чтобы вернуть словарь с резюме блога.
Я бы не стал доверять коду для создания резюме любого случайного блога в Интернете, потому что он может не удалить весь небезопасный html из ленты блога. Однако для простого блога, который вы пишете сами, приведенный ниже код должен работать.
Пожалуйста, не стесняйтесь копировать, но если вы видите какие-либо ошибки или хотите внести улучшения, добавьте их в комментарии. (извините за точки с запятой).
import sys
import os
import logging
import time
import urllib
from HTMLParser import HTMLParser
from django.core.cache import cache
# Import the Blogger API
sys.path.insert(0, 'gdata.zip')
from gdata import service
Months = ["Jan.", "Feb.", "Mar.", "Apr.", "May", "June", "July", "Aug.", "Sept.", "Oct.", "Nov.", "Dec."];
blog_id_constant = -1 # YOUR BLOG ID HERE
blog_pages_at_once = 5
# -----------------------------------------------------------------------------
# Blogger
class BlogHTMLSummarizer(HTMLParser):
'''
An HTML parser which only grabs X number of words and removes
all tags except for certain safe ones.
'''
def __init__(self, max_words = 80):
self.max_words = max_words
self.allowed_tags = ["a", "b", "u", "i", "br", "div", "p", "img", "li", "ul", "ol"]
if self.max_words < 80:
# If it's really short, don't include layout tags
self.allowed_tags = ["a", "b", "u", "i"]
self.reset()
self.out_html = ""
self.num_words = 0
self.no_more_data = False
self.no_more_tags = False
self.tag_stack = []
def handle_starttag(self, tag, attrs):
if not self.no_more_data and tag in self.allowed_tags:
val = "<%s %s>"%(tag,
" ".join("%s='%s'"%(a,b) for (a,b) in attrs))
self.tag_stack.append(tag)
self.out_html += val
def handle_data(self, data):
if self.no_more_data:
return
data = data.split(" ")
if self.num_words + len(data) >= self.max_words:
data = data[:self.max_words-self.num_words]
data.append("...")
self.no_more_data = True
self.out_html += " ".join(data)
self.num_words += len(data)
def handle_endtag(self, tag):
if self.no_more_data and not self.tag_stack:
self.no_more_tags = True
if not self.no_more_tags and self.tag_stack and tag == self.tag_stack[-1]:
if not self.tag_stack:
logging.warning("mixed up blogger tags")
else:
self.out_html += "</%s>"%tag
self.tag_stack.pop()
def get_blog_info(short_summary = False, page = 1, year = "", month = "", day = "", post = None):
'''
Returns summaries of several recent blog posts to be displayed on the front page
page: which page of blog posts to get. Starts at 1.
'''
blogger_service = service.GDataService()
blogger_service.source = 'exampleCo-exampleApp-1.0'
blogger_service.service = 'blogger'
blogger_service.account_type = 'GOOGLE'
blogger_service.server = 'www.blogger.com'
blog_dict = {}
# Do the common stuff first
query = service.Query()
query.feed = '/feeds/' + blog_id_constant + '/posts/default'
query.order_by = "published"
blog_dict['entries'] = []
def get_common_entry_data(entry, summarize_len = None):
'''
Convert an entry to a dictionary object.
'''
content = entry.content.text
if summarize_len != None:
parser = BlogHTMLSummarizer(summarize_len)
parser.feed(entry.content.text)
content = parser.out_html
pubstr = time.strptime(entry.published.text[:-10], '%Y-%m-%dT%H:%M:%S')
safe_title = entry.title.text.replace(" ","_")
for c in ":,.<>!@#$%^&*()+-=?/'[]{}\\\"":
# remove nasty characters
safe_title = safe_title.replace(c, "")
link = "%d/%d/%d/%s/"%(pubstr.tm_year, pubstr.tm_mon, pubstr.tm_mday,
urllib.quote_plus(safe_title))
return {
'title':entry.title.text,
'alllinks':[x.href for x in entry.link] + [link], #including blogger links
'link':link,
'content':content,
'day':pubstr.tm_mday,
'month':Months[pubstr.tm_mon-1],
'summary': True if summarize_len != None else False,
}
def get_blogger_feed(query):
feed = cache.get(query.ToUri())
if not feed:
logging.info("GET Blogger Page: " + query.ToUri())
try:
feed = blogger_service.Get(query.ToUri())
except DownloadError:
logging.error("Cant download blog, rate limited? %s"%str(query.ToUri()))
return None
except Exception, e:
web_exception('get_blogger_feed', e)
return None
cache.set(query.ToUri(), feed, 3600)
return feed
def _in_one(a, allBs):
# Return true if a is in one of allBs
for b in allBs:
if a in b:
return True
return False
def _get_int(i):
try:
return int(i)
except ValueError:
return None
(year, month, day) = (_get_int(year), _get_int(month), _get_int(day))
if not short_summary and year and month and day:
# Get one more than we need so we can see if we have more
query.published_min = "%d-%02d-%02dT00:00:00-08:00"%(year, month, day)
query.published_max = "%d-%02d-%02dT23:59:59-08:00"%(year, month, day)
feed = get_blogger_feed(query)
if not feed:
return {}
blog_dict['detail_view'] = True
blog_dict['entries'] = map(lambda e: get_common_entry_data(e, None), feed.entry)
elif not short_summary and year and month and not day:
# Get one more than we need so we can see if we have more
query.published_min = "%d-%02d-%02dT00:00:00-08:00"%(year, month, 1)
query.published_max = "%d-%02d-%02dT23:59:59-08:00"%(year, month, 31)
feed = get_blogger_feed(query)
if not feed:
return {}
blog_dict['detail_view'] = True
blog_dict['entries'] = map(lambda e: get_common_entry_data(e, None), feed.entry)
if post:
blog_dict['entries'] = filter(lambda f: _in_one(post, f['alllinks']), blog_dict['entries'])
elif short_summary:
# Get a summary of all posts
query.max_results = str(3)
query.start_index = str(1)
feed = get_blogger_feed(query)
if not feed:
return {}
feed.entry = feed.entry[:3]
blog_dict['entries'] = map(lambda e: get_common_entry_data(e, 18), feed.entry)
else:
# Get a summary of all posts
try:
page = int(page)
except ValueError:
page = 1
# Get one more than we need so we can see if we have more
query.max_results = str(blog_pages_at_once + 1)
query.start_index = str((page - 1)* blog_pages_at_once + 1)
logging.info("GET Blogger Page: " + query.ToUri())
feed = blogger_service.Get(query.ToUri())
has_older = len(feed.entry) > blog_pages_at_once
feed.entry = feed.entry[:blog_pages_at_once]
if page > 1:
blog_dict['newer_page'] = str(page-1)
if has_older:
blog_dict['older_page'] = str(page+1)
blog_dict['entries'] = map(lambda e: get_common_entry_data(e, 80), feed.entry)
return blog_dict
person
speedplane
schedule
08.02.2012
<a>, <b>, <u> and <i>
с обратной кавычкой - person Xavier Combelle   schedule 08.03.2011