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index.py
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#!/usr/bin/env python
# -*- coding: UTF-8 -*-
import logging
import os
import re
from datetime import datetime
import cPickle
import tempfile
from contextlib import closing
from string import Template
import wsgiref.util
import cgi
from urllib import quote_plus, unquote_plus
import hashlib
import random
class RequestContext(object):
def __init__(self, environ, start_response):
self.environ = environ
self.response = start_response
app_uri = wsgiref.util.application_uri(environ)
self.app_uri = app_uri if not app_uri.endswith('/') \
else app_uri[0:len(app_uri) - 1]
self.path = self.environ.get('PATH_INFO', '/')
self.method = self.environ['REQUEST_METHOD'].upper()
class Blog(object):
_statuses = {404: '404 Not Found', 200: '200 OK', 303: '303 See Other',
400: '400 Bad Request'}
_tpl_header = Template('<!DOCTYPE html>\n'
'<html xmlns="http://www.w3.org/1999/html">\n'
'<head lang="en">\n'
'\t<meta charset="${encoding}"/>\n'
'\t<link rel="stylesheet" href="${base}/styles.css" '
'type="text/css" media="screen"/>\n'
'\t<script type="text/javascript" '
'src="${base}/script.js"></script>\n'
'\t<link type="application/atom+xml" rel="alternate"'
' title="${title}" href="${feed_url}" />\n'
'\t<title>${title}</title>\n'
'</head>\n'
'<body${body_tag}>\n'
'\t<header>\n'
'\t\t<h1>${title}</h1>\n'
'\t</header>\n'
'\t<main>\n')
_tpl_link = Template('<a href="${link}">${title}</a>')
_tpl_link_wth_cls = Template('<a href="${link}" class="${cls}">${title}'
'</a>')
_tpl_entries_begin = '\t\t<section>\n'
_tpl_entry = Template('\t\t\t<article>\n'
'\t\t\t<header>\n'
'\t\t\t\t<h2>${title}</h2></header>\n'
'\t\t\t<time>${time}</time>\n'
'\t\t\t<p>${text}</p>\n'
'\t\t\t<footer>\n'
'\t\t\t\t<div>posted in ${categories}</div>\n'
'\t\t\t\t<div>${comments}</div>\n'
'\t\t\t</footer>\n'
'\t\t\t</article>\n')
_tpl_view_full = Template('<a href="#">View full post →</a>')
_tpl_entries_end = '\t\t</section>\n'
_tpl_aside = Template('\t\t<aside>\n'
'\t\t\t<nav><h2>Categories</h2>\n'
'\t\t\t\t<ul>\n'
'${categories}'
'\t\t\t\t</ul>\n'
'\t\t\t</nav>\n'
'\t\t\t<nav><h2>Archive</h2>\n'
'\t\t\t\t<ul>\n'
'${archive}'
'\t\t\t\t</ul>\n'
'\t\t\t</nav>\n'
'\t\t</aside>\n')
_tpl_aside_entry = Template('\t\t\t\t\t<li><a href="${link}">${title}</a>'
'</li>\n')
_tpl_footer = Template('\t</main>\n'
'\t<footer>\n'
'\t\t<nav>${links}</nav>\n'
'\t</footer>\n'
'</body>\n'
'</html>\n')
_tpl_post = Template('\t\t\t<article>\n'
'\t\t\t\t<header><h2>${title}</h2></header>\n'
'\t\t\t\t<time>${time}</time>\n'
'\t\t\t\t<p>${text}</p>\n'
'\t\t\t\t<footer>\n'
'\t\t\t\t<div>posted in ${categories}</div>\n'
'\t\t\t\t<div class="comments" id="comments">\n'
'\t\t\t\t<header><h3>${comments_title}</h3>'
'<a onclick="toggleReplyForm(\'reply-form\');'
'return false;" href="#comments">Reply</a></header>\n'
'\t\t\t\t<div class="reply-wrapper" id="reply-form" '
'style="display:none;">\n'
'\t\t\t\t<form method="post" class="reply-form"'
'action="${reply_url}">\n'
'\t\t\t\t<div><input type="text" class="cobweb" '
'name="cobweb" placeholder="Please, paste ${token} '
'value into this field" value=""/></div>\n'
'\t\t\t\t<div><input name="email" '
'type="text" placeholder="Email" value=""/></div>\n'
'\t\t\t\t<div><input name="name" '
'type="text" placeholder="Name" value=""/></div>\n'
'\t\t\t\t<div><textarea rows="4" placeholder="Comment"'
' name="comment"></textarea></div>\n'
'\t\t\t\t<div><input type="submit" value="Send"/>'
'</div>\n'
'\t\t\t\t</form>\n'
'\t\t\t\t</div>\n'
'\t\t\t\t\t${comments}\n'
'\t\t\t\t</div>\n'
'\t\t\t\t</footer>\n'
'\t\t\t</article>\n')
_tpl_comment = Template('\t\t\t\t<div class="comment">\n'
'\t\t\t\t<div class="comment_body">\n'
'\t\t\t\t<header><h3>${name}</h3>'
'<time>${time}</time><span class="delete">'
'${delete_url}</span></header>\n'
'\t\t\t\t<p>${comment}</p>\n'
'\t\t\t\t<footer><a href="#" '
'onclick="toggleReplyForm(\'reply-form-${id}\');'
'return false;">Reply</a></footer>\n'
'\t\t\t\t<div class="reply-wrapper" '
'id="reply-form-${id}" style="display:none;">\n'
'\t\t\t\t<form method="post" class="reply-form"'
'action="${reply_url}">\n'
'\t\t\t\t<div><input type="text" class="cobweb" '
'name="cobweb" placeholder="Please, paste ${token} '
'value into this field" value=""/></div>\n'
'\t\t\t\t<input name="comment_no" type="hidden" '
'value="${id}"/>\n'
'\t\t\t\t<div><input name="email" '
'type="text" placeholder="Email" value=""/></div>\n'
'\t\t\t\t<div><input name="name" '
'type="text" placeholder="Name" value=""/></div>\n'
'\t\t\t\t<div><textarea rows="4" '
'placeholder="Comment" name="comment"></textarea>'
'</div>\n'
'\t\t\t\t<div><input type="submit" value="Send"/>'
'</div>\n'
'\t\t\t\t</form>\n'
'\t\t\t\t</div>\n'
'\t\t\t\t</div>\n'
'\t\t\t\t<div class="reply_comments">${comments}'
'</div>\n'
'\t\t\t\t</div>\n')
_tpl_delete_comment = Template('\t\t\t<form method="post" '
'action="${url}/${ids}">\n'
'\t\t\t\t<input name="password" '
'type="password" placeholder="Password"/>\n'
'\t\t\t\t<input type="submit" '
'value="Delete"/>\n'
'\t\t\t</form>\n')
_tpl_feed_begin = Template('<?xml version="1.0" encoding="${encoding}"?>\n'
'<feed xmlns="http://www.w3.org/2005/Atom">\n'
'\t<title>${title}</title>\n'
'\t<link rel="self" type="text/xml" '
'href="${self_url}"/>\n'
'\t<link type="text/html" rel="alternate" '
'href="${url}"/>\n'
'\t<updated>${updated}</updated>\n'
'\t<author><name>${author}</name></author>\n'
'\t<id>urn:${id}</id>\n')
_tpl_feed_entry = Template('\t<entry>\n'
'\t\t<id>urn:${id}</id>\n'
'\t\t<title>${title}</title>\n'
'\t\t<link type="text/html" rel="alternate" '
'href="${url}"/>\n'
'${categories}'
'\t\t<updated>${updated}</updated>\n'
'\t\t<content type="text/html">${content}'
'</content>\n'
'\t</entry>\n')
_tpl_feed_category = Template('\t\t<category term="${category}"/>\n')
_tpl_feed_end = '</feed>'
def __init__(self):
self._encoding = 'UTF-8'
script_path, _ = os.path.split(os.path.realpath(__file__))
conf = dict()
conf_path = os.path.join(script_path, 'index.conf')
try:
execfile(conf_path, conf)
except IOError:
print 'I wasn\'t able to read configuration file [%s]. Default ' \
'settings will be used' % conf_path
logging.basicConfig(level=logging.DEBUG)
self._logger = logging.getLogger(__name__)
self.entries_dir = conf.get('entries_path', os.path.join(script_path,
'entries'))
self.indices_dir = conf.get('indices_path', os.path.join(script_path,
'indices'))
self.comments_dir = conf.get('comments_path', os.path.join(script_path,
'comments'))
self.file_name_sep = conf.get('file_name_separator', '-')
self.title = conf.get('title', '')
try:
self.items_per_page = int(conf.get('items_per_page', 7))
except ValueError:
self.items_per_page = 7
try:
self.items_per_feed = int(conf.get('items_per_feed', 7))
except ValueError:
self.items_per_feed = 7
try:
self.comments_nesting = int(conf.get('comments_nesting', 7))
except ValueError:
self.comments_nesting = 7
self.index = self._try_main_index(os.path.join(self.indices_dir,
'main.index'))
self.author = conf.get('author', 'anonymous')
self.categories = self.list_categories()
self.archive = self.list_archive()
password = conf.get('password')
if password:
m = hashlib.md5()
m.update(password)
self.password = m.digest()
else:
self.password = None
self._salt = conf.get('salt', ''.join(random.choice('0123456789ABCDEF')
for _ in range(16)))
def _serialize_object(self, obj, file_path, force=False):
tmp_fd, tmp_path = tempfile.mkstemp(dir=self.indices_dir)
with closing(os.fdopen(tmp_fd, 'wb')) as tmp_file:
cPickle.dump(obj, tmp_file, protocol=cPickle.HIGHEST_PROTOCOL)
try:
if not os.path.exists(file_path) or force:
os.rename(tmp_path, file_path)
self._logger.debug('an object was serialized into file [%s]',
file_path)
finally:
if os.path.exists(tmp_path):
os.remove(tmp_path)
def _try_main_index(self, main_index_path):
if not os.path.exists(main_index_path):
return self._create_main_index(main_index_path)
else:
with open(main_index_path, 'rb') as f:
return cPickle.load(f)
def _create_main_index(self, main_index_path):
entries = list()
re_file_name = re.compile('^(.+)' + self.file_name_sep +
'(\d{4}-\d{2}-\d{2})\.txt$')
for file_name in os.listdir(self.entries_dir):
if os.path.isfile(os.path.join(self.entries_dir, file_name)):
matched = re_file_name.match(file_name)
if matched:
try:
date = datetime.strptime(matched.group(2), '%Y-%m-%d')
entries.append((date, matched.group(1),
self._read_categories(file_name)))
except ValueError:
continue
entries.sort(reverse=True, key=lambda entry: (entry[0], entry[1]))
self._serialize_object(entries, main_index_path)
return entries
def _read_categories(self, file_name):
re_categories = re.compile('^categories:([^,]+)(?:,([^,]+))*$')
categories = set()
with open(os.path.join(self.entries_dir, file_name), mode='r') as f:
for line in f:
matched = re_categories.match(line)
if matched:
for category in matched.groups():
categories.add(category.strip())
break
return categories
def status(self, rc, code, response):
rc.response(self._statuses[code], [('Content-Type',
'text/plain; charset=%s' %
self._encoding)])
return response
def redirect(self, rc, url):
rc.response(self._statuses[303], [('Location', rc.app_uri + url)])
def list_file_names(self):
main_index_path = os.path.join(self.indices_dir, 'main.index')
if not os.path.exists(main_index_path):
self._create_main_index(main_index_path)
with open(main_index_path, 'rb') as f:
return cPickle.load(f)
def filter_entries(self, category, archive):
if category:
return [entry for entry in self.index if category in entry[2]]
elif archive:
archive = datetime.strptime(archive, '%Y-%m')
return [entry for entry in self.index if (archive.year,
archive.month) ==
(entry[0].year,
entry[0].month)]
return self.index
def read_post(self, entry):
date, pid, cats = entry
post = dict()
post['date'] = date
post['id'] = pid
with open(os.path.join(self.entries_dir,
self.build_file_name(entry))) as f:
preview, full = False, False
for line in f:
if line.startswith('categories:') and 'categories' not in post:
post['categories'] = [category.strip() for category in
line.lstrip('categories:').split(",")]
preview, full = False, False
elif line.startswith('title:') and 'title' not in post:
post['title'] = line.lstrip('title:').strip()
preview, full = False, False
elif line.startswith('preview:') and not preview \
and 'preview' not in post:
preview, full = True, False
post['preview'] = line.lstrip('preview:').lstrip()
elif line.startswith('full:') and not full \
and 'full' not in post:
preview, full = False, True
post['full'] = line.lstrip('full:').lstrip()
elif preview:
post['preview'] += line
elif full:
post['full'] += line
if 'categories' not in post:
post['categories'] = []
return post
def list_archive(self):
archive = list()
year, month = None, None
for date, _, _ in self.index:
if (date.year, date.month) != (year, month):
archive.append(str(date.year) + "-" + str(date.month))
year, month = date.year, date.month
return archive
def list_categories(self):
categories = set()
for _, _, cats in self.index:
categories.update(cats)
categories = list(categories)
categories.sort()
return categories
@staticmethod
def build_base_uri(app_uri, category, archive, page):
uri = app_uri
if category:
uri += '/category/' + category
elif archive:
uri += '/archive/' + archive
if page:
uri += '/page/' + str(page)
return uri
def build_file_name(self, entry):
date, pid, _ = entry
return pid + self.file_name_sep + date.strftime('%Y-%m-%d') + '.txt'
def find_entry(self, archive, pid):
try:
date = datetime.strptime(archive, '%Y-%m-%d')
entry = next(entry for entry in self.index
if (date, pid) == entry[0:2])
return entry if entry else None
except ValueError:
return None
def get_comment(self, comments, comments_num):
comment = None
level = 0
while comments_num:
index = comments_num[0]
if level == self.comments_nesting:
return comment
if index < len(comments):
comment = comments[index]
comments, comments_num = comment[4], comments_num[1:]
else:
comment, comments_num = None, None
level += 1
return comment
def gather_comments(self, app_uri, comments, archive, pid, token, admin):
reply_url = app_uri + '/post/' + archive + '/' + pid
delete_url = app_uri + '/delete/' + archive + '/' + pid
def _gather_comments(_comments, _buf, _count, ids):
for idx, comment in enumerate(_comments):
date, _, name, text, replies = comment
_ids = list(ids)
_ids.append(str(idx))
comments_str, comments_count = \
_gather_comments(replies, [], 0, _ids)
ids_str = "-".join(_ids)
_buf.append(self._tpl_comment.
substitute(name=cgi.escape(name) or 'anonymous',
time=date.strftime('%Y/%m/%d @ %H:%M'),
reply_url=reply_url, id=ids_str,
comment=cgi.escape(text),
delete_url=self._tpl_link.
substitute(link=delete_url + '/' +
ids_str,
title='X') if admin else '',
comments=comments_str, token=token))
_count += comments_count + 1
return "".join(_buf), _count
buf, count = _gather_comments(comments, [], 0, [])
return "".join(buf), count
def load_comments(self, archive, pid):
comments_path = os.path.join(self.comments_dir,
pid + self.file_name_sep + archive +
'.comments')
if os.path.exists(comments_path):
with open(comments_path, 'rb') as f:
return cPickle.load(f)
else:
return list()
def count_comments(self, comments):
if comments:
count = len(comments)
for _, _, _, _, replies in comments:
count += self.count_comments(replies)
return count
return 0
def configure(self):
main_index_path = os.path.join(self.indices_dir, 'main.index')
if not os.path.exists(main_index_path):
self.index = self._try_main_index(main_index_path)
self.categories = self.list_categories()
self.archive = self.list_archive()
def get_list(self, rc, category=None, archive=None, page=1):
if page > 0:
if category and category not in self.categories:
yield self.status(rc, 404, 'Category %s not found' % category)
elif archive and archive not in self.archive:
yield self.status(rc, 404, 'Archive %s not found' % archive)
else:
rc.response(self._statuses[200], [('Content-Type',
'text/html; charset=%s' %
self._encoding)])
yield self._tpl_header.\
substitute(base=rc.app_uri, feed_url=rc.app_uri + '/rss'
+ ('/' + category if category else ''),
title=cgi.escape(self.title, quote=True),
encoding=self._encoding.lower(), body_tag='')
yield self._tpl_entries_begin
entries = self.filter_entries(category, archive)
items_to = self.items_per_page * page
for entry in entries[items_to - self.items_per_page:items_to]:
post = self.read_post(entry)
date_for_link = post['date'].strftime('%Y-%m-%d')
fmt_categories = ", ".join(
[self._tpl_link.substitute(link=rc.app_uri +
'/category/' +
quote_plus(cat), title=cat)
for cat in post['categories']])
if 'preview' in post:
post_text = post['preview']
if 'full' in post:
post_text += self._tpl_link.substitute(
link=rc.app_uri + '/post/' + date_for_link +
'/' + post['id'], title='View full post →')
elif 'full' in post:
post_text = post['full']
else:
post_text = ''
title = self.\
_tpl_link.substitute(link=rc.app_uri + '/post/' +
date_for_link + '/' + post['id'],
title=post['title'])
comments_count = self.\
count_comments(self.load_comments(date_for_link,
post['id']))
comments_str = 'No comments'
if comments_count == 1:
comments_str = '1 comment'
elif comments_count > 1:
comments_str = '%d comments' % comments_count
comments_str = self._tpl_link.\
substitute(link=rc.app_uri + '/post/' +
date_for_link + '/' + post['id'] +
'#comments', title=comments_str)
yield self._tpl_entry.\
substitute(title=title, categories=fmt_categories,
time=post['date'].strftime('%Y/%m/%d'),
text=post_text, comments=comments_str)
yield self._tpl_entries_end
fmt_categories = "".join(
[self._tpl_aside_entry.substitute(link=rc.app_uri +
'/category/' +
quote_plus(cat),
title=cat)
for cat in self.categories])
fmt_archive = "".join(
[self._tpl_aside_entry.substitute(link=rc.app_uri +
'/archive/' +
quote_plus(arc),
title=arc)
for arc in self.archive])
yield self._tpl_aside.substitute(categories=fmt_categories,
archive=fmt_archive)
older_newer = ''
if entries:
if items_to < len(entries):
older_newer = self.\
_tpl_link_wth_cls.\
substitute(link=Blog.build_base_uri(rc.app_uri,
category,
archive,
page + 1),
cls='older',
title='◄ Older')
if page > 1 and items_to - self.items_per_page < \
len(entries):
older_newer += self.\
_tpl_link_wth_cls.\
substitute(link=Blog.build_base_uri(rc.app_uri,
category,
archive,
page - 1),
cls='newer',
title='Newer ►')
yield self._tpl_footer.substitute(links=older_newer)
else:
yield self.status(rc, 404, 'Page %d not found' % page)
def get_post(self, rc, archive, pid, admin=False):
entry = self.find_entry(archive, pid)
if entry:
post = self.read_post(entry)
rc.response(self._statuses[200], [('Content-Type',
'text/html; charset=%s' %
self._encoding)])
m = hashlib.sha1()
m.update(archive + pid + self._salt)
token = m.hexdigest()
yield self._tpl_header.\
substitute(base=rc.app_uri, encoding=self._encoding,
feed_url=rc.app_uri + '/rss',
body_tag=' onload="setToken(\'' + token + '\');"',
title=cgi.escape(self.title, quote=True))
yield self._tpl_entries_begin
fmt_categories = ", ".join(
[self._tpl_link.substitute(link=rc.app_uri + '/category/' +
quote_plus(cat), title=cat)
for cat in post['categories']])
if 'full' in post:
post_text = post['full']
elif 'preview' in post:
post_text = post['preview']
else:
post_text = ''
comments_path = os.path.join(self.comments_dir, pid +
self.file_name_sep + archive +
'.comments')
comments_title = 'No comments'
comments_str = ''
if os.path.exists(comments_path):
with open(comments_path, 'rb') as f:
comments = cPickle.load(f)
comments_str, count = self.gather_comments(rc.app_uri, comments,
archive, pid, token,
admin)
if count == 1:
comments_title = '1 comment'
elif count > 1:
comments_title = '%d comments' % count
yield self._tpl_post.\
substitute(title=post['title'], categories=fmt_categories,
time=post['date'].strftime('%Y/%m/%d'),
text=post_text, comments_title=comments_title,
comments=comments_str, reply_url=rc.app_uri +
'/post/' + archive + '/' + pid, token=token)
yield self._tpl_entries_end
fmt_categories = "".join(
[self._tpl_aside_entry.substitute(link=rc.app_uri +
'/category/' +
quote_plus(cat), title=cat)
for cat in self.categories])
fmt_archive = "".join(
[self._tpl_aside_entry.substitute(link=rc.app_uri +
'/archive/' + quote_plus(arc),
title=arc)
for arc in self.archive])
yield self._tpl_aside.substitute(categories=fmt_categories,
archive=fmt_archive)
else:
yield self.status(rc, 404, 'Post %s not found' % archive + '/' +
pid)
def get_delete_comment(self, rc, archive, pid, ids_str):
entry = self.find_entry(archive, pid)
if entry:
rc.response(self._statuses[200], [('Content-Type',
'text/html; charset=%s' %
self._encoding)])
yield self._tpl_header.\
substitute(base=rc.app_uri, encoding=self._encoding,
feed_url=rc.app_uri + '/rss', body_tag='',
title=cgi.escape(self.title, quote=True))
yield self._tpl_entries_begin
yield self.\
_tpl_delete_comment.\
substitute(url=rc.app_uri + '/delete/' + archive + '/' + pid,
ids=ids_str)
yield self._tpl_entries_end
fmt_categories = "".join(
[self._tpl_aside_entry.substitute(link=rc.app_uri +
'/category/' +
quote_plus(cat), title=cat)
for cat in self.categories])
fmt_archive = "".join(
[self._tpl_aside_entry.substitute(link=rc.app_uri +
'/archive/' + quote_plus(arc),
title=arc)
for arc in self.archive])
yield self._tpl_aside.substitute(categories=fmt_categories,
archive=fmt_archive)
else:
yield self.status(rc, 404, 'Post %s not found' % archive + '/' +
pid)
def get_rss(self, rc, category=None):
if category and category not in self.categories:
yield self.status(rc, 404, 'Category %s not found' % category)
else:
rc.response(self._statuses[200], [('Content-Type',
'application/atom+xml; '
'charset=%s' %
self._encoding)])
datetime_format = '%Y-%m-%dT%H-%M-%SZ'
entries = self.filter_entries(category, None)
updated = datetime(1986, 4, 26)
if entries:
updated = entries[0][0].strftime(datetime_format)
yield self._tpl_feed_begin.\
substitute(encoding=self._encoding.lower(),
self_url=rc.app_uri + '/rss' +
('/' + category if category else ''),
title=self.title,
author=self.author, url=rc.app_uri +
('/category/' + category if category else ''),
id=rc.app_uri + ('/category/' +
category if category else ''), updated=updated)
for entry in entries[:self.items_per_feed]:
post = self.read_post(entry)
date_for_link = post['date'].strftime('%Y-%m-%d')
post_text = ''
if 'preview' in post:
post_text = post['preview']
elif 'full' in post:
post_text = post['full']
fmt_categories = "".join(
[self._tpl_feed_category.substitute(category=cat)
for cat in post['categories']])
yield self.\
_tpl_feed_entry.\
substitute(id=date_for_link + ':' + post['id'],
title=post['title'], url=rc.app_uri + '/post/'
+ date_for_link + '/' + post['id'],
updated=post['date'].strftime(datetime_format),
categories=fmt_categories, content=post_text)
yield self._tpl_feed_end
def post_comment(self, rc, archive, pid):
entry = self.find_entry(archive, pid)
if entry:
fs = cgi.FieldStorage(keep_blank_values=1,
fp=rc.environ['wsgi.input'],
environ=rc.environ)
email = fs.getvalue('email', '')
name = fs.getvalue('name', '')
comment = fs.getvalue('comment', '')
comments_no_str = fs.getvalue('comment_no')
cobweb = fs.getvalue('cobweb', '')
m = hashlib.sha1()
m.update(archive + pid + self._salt)
if m.hexdigest() == cobweb:
try:
comments_no = [int(comment_no) for comment_no
in comments_no_str.split("-")] if \
comments_no_str else []
path_comment_file = os.path.\
join(self.comments_dir, pid + self.file_name_sep +
archive + '.comments')
comments = list()
if os.path.exists(path_comment_file):
with open(path_comment_file, 'rb') as f:
comments = cPickle.load(f)
parent_comment = self.get_comment(comments, comments_no)
replies = parent_comment[4] if parent_comment else comments
replies.append((datetime.now(), email, name, comment, []))
replies.sort(key=lambda c: c[0], reverse=True)
self._serialize_object(comments, path_comment_file,
force=True)
self.redirect(rc, '/post/' + archive + '/' + pid)
except ValueError:
yield self.status(rc, 401, 'I cannot understand comment_no '
'[%s] parameter' %
comments_no_str)
except IOError:
self._logger.error("IOError occurred while adding comment",
exc_info=1)
self.redirect(rc, '/post/' + archive + '/' + pid)
else:
yield self.status(rc, 400, 'Token for preventing spam was not '
'valid during comment submission. '
'Please, try again')
else:
yield self.status(rc, 404, 'Post %s not found' % archive + '/' +
pid)
def post_delete_comment(self, rc, archive, pid, ids_str):
entry = self.find_entry(archive, pid)
if entry:
fs = cgi.FieldStorage(keep_blank_values=1,
fp=rc.environ['wsgi.input'],
environ=rc.environ)
password = fs.getvalue('password', '')
m = hashlib.md5()
m.update(password)
if m.digest() == self.password:
try:
ids = [int(id_str) for id_str
in ids_str.split("-")] if ids_str else []
if not ids:
raise ValueError()
path_comment_file = os.path.\
join(self.comments_dir, pid + self.file_name_sep +
archive + '.comments')
if os.path.exists(path_comment_file):
with open(path_comment_file, 'rb') as f:
comments = cPickle.load(f)
id_to_delete = ids.pop()
parent_comment = self.get_comment(comments, ids)
replies = comments if not ids else \
(parent_comment[4] if parent_comment else [])
if id_to_delete < len(replies):
del replies[id_to_delete]
self._serialize_object(comments, path_comment_file,
force=True)
else:
self._logger.warn('Comment was not deleted. '
'comment_no is [%s]', ids_str)
self.redirect(rc, '/post/' + archive + '/' + pid)
except ValueError:
yield self.status(rc, 400, 'I cannot understand ids [%s] '
'parameter' % ids_str)
else:
self._logger.warn('Wrong password was provided in order '
'to delete comment %s/%s/%s', archive, pid,
ids_str)
self.redirect(rc, '/post/' + archive + '/' + pid)
else:
yield self.status(rc, 404, 'Post %s not found' % archive + '/' +
pid)
def __call__(self, environ, start_response):
self.configure()
rc = RequestContext(environ, start_response)
if rc.method == 'GET':
if not rc.path or rc.path == '/':
return self.get_list(rc)
elif re.match('^/page/\d+/?$', rc.path):
return self.get_list(rc, page=int(rc.path.split('/')[2]))
elif re.match('^/category/[^/]+/?$', rc.path):
return self.get_list(rc, category=unquote_plus(
rc.path.split('/')[2]))
elif re.match('^/category/[^/]+/page/\d+/?$', rc.path):
path_els = rc.path.split('/')
return self.get_list(rc, category=unquote_plus(path_els[2]),
page=int(path_els[4]))
elif re.match('^/archive/\d{4}-\d{2}/?$', rc.path):
return self.get_list(rc, archive=rc.path.split('/')[2])
elif re.match('^/archive/\d{4}-\d{2}/page/\d+/?$', rc.path):
path_els = rc.path.split('/')
return self.get_list(rc, archive=path_els[2],
page=int(path_els[4]))
elif re.match('^/post/\d{4}-\d{2}-\d{2}/[^/]+/?$', rc.path):
path_els = rc.path.split('/')
return self.get_post(rc, archive=path_els[2],
pid=unquote_plus(path_els[3]))
elif re.match('^/post/\d{4}-\d{2}-\d{2}/[^/]+/admin/?$', rc.path):
path_els = rc.path.split('/')
return self.get_post(rc, archive=path_els[2],
pid=unquote_plus(path_els[3]),
admin=True)
elif re.match('^/delete/\d{4}-\d{2}-\d{2}/[^/]+/\d+(-\d+)*/?$',
rc.path):
path_els = rc.path.split('/')
return self.get_delete_comment(rc, archive=path_els[2],
pid=unquote_plus(path_els[3]),
ids_str=path_els[4])
elif re.match('^/rss/?$', rc.path):
return self.get_rss(rc)
elif re.match('^/rss/[^/]+/?$', rc.path):
return self.get_rss(rc.path.split('/')[2])
elif rc.method == 'POST':
if re.match('^/post/\d{4}-\d{2}-\d{2}/[^/]+/?$', rc.path):
path_els = rc.path.split('/')
return self.post_comment(rc, archive=path_els[2],
pid=unquote_plus(path_els[3]))
elif re.match('^/delete/\d{4}-\d{2}-\d{2}/[^/]+/\d+(-\d+)*/?$',
rc.path):
path_els = rc.path.split('/')
return self.post_delete_comment(rc, path_els[2],
unquote_plus(path_els[3]),
path_els[4])
return self.status(rc, 404, 'Page %s not found' % rc.path)
application = Blog()