1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
#!/usr/bin/env python
#
# Copyright 2009 Facebook
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import markdown
import os.path
import re
import tornado.auth
import tornado.database
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import unicodedata
from tornado.options import define, options
define("port", default=8888, help="run on the given port", type=int)
define("mysql_host", default="127.0.0.1:3306", help="blog database host")
define("mysql_database", default="blog", help="blog database name")
define("mysql_user", default="blog", help="blog database user")
define("mysql_password", default="blog", help="blog database password")
class Application(tornado.web.Application):
def __init__(self):
handlers = [
(r"/", HomeHandler),
(r"/archive", ArchiveHandler),
(r"/feed", FeedHandler),
(r"/entry/([^/]+)", EntryHandler),
(r"/compose", ComposeHandler),
(r"/auth/login", AuthLoginHandler),
(r"/auth/logout", AuthLogoutHandler),
]
settings = dict(
blog_title=u"Tornado Blog",
template_path=os.path.join(os.path.dirname(__file__), "templates"),
static_path=os.path.join(os.path.dirname(__file__), "static"),
ui_modules={"Entry": EntryModule},
xsrf_cookies=True,
cookie_secret="11oETzKXQAGaYdkL5gEmGeJJFuYh7EQnp2XdTP1o/Vo=",
login_url="/auth/login",
autoescape=None,
)
tornado.web.Application.__init__(self, handlers, **settings)
# Have one global connection to the blog DB across all handlers
self.db = tornado.database.Connection(
host=options.mysql_host, database=options.mysql_database,
user=options.mysql_user, password=options.mysql_password)
class BaseHandler(tornado.web.RequestHandler):
@property
def db(self):
return self.application.db
def get_current_user(self):
user_id = self.get_secure_cookie("user")
if not user_id: return None
return self.db.get("SELECT * FROM authors WHERE id = %s", int(user_id))
class HomeHandler(BaseHandler):
def get(self):
entries = self.db.query("SELECT * FROM entries ORDER BY published "
"DESC LIMIT 5")
if not entries:
self.redirect("/compose")
return
self.render("home.html", entries=entries)
class EntryHandler(BaseHandler):
def get(self, slug):
entry = self.db.get("SELECT * FROM entries WHERE slug = %s", slug)
if not entry: raise tornado.web.HTTPError(404)
self.render("entry.html", entry=entry)
class ArchiveHandler(BaseHandler):
def get(self):
entries = self.db.query("SELECT * FROM entries ORDER BY published "
"DESC")
self.render("archive.html", entries=entries)
class FeedHandler(BaseHandler):
def get(self):
entries = self.db.query("SELECT * FROM entries ORDER BY published "
"DESC LIMIT 10")
self.set_header("Content-Type", "application/atom+xml")
self.render("feed.xml", entries=entries)
class ComposeHandler(BaseHandler):
@tornado.web.authenticated
def get(self):
id = self.get_argument("id", None)
entry = None
if id:
entry = self.db.get("SELECT * FROM entries WHERE id = %s", int(id))
self.render("compose.html", entry=entry)
@tornado.web.authenticated
def post(self):
id = self.get_argument("id", None)
title = self.get_argument("title")
text = self.get_argument("markdown")
html = markdown.markdown(text)
if id:
entry = self.db.get("SELECT * FROM entries WHERE id = %s", int(id))
if not entry: raise tornado.web.HTTPError(404)
slug = entry.slug
self.db.execute(
"UPDATE entries SET title = %s, markdown = %s, html = %s "
"WHERE id = %s", title, text, html, int(id))
else:
slug = unicodedata.normalize("NFKD", title).encode(
"ascii", "ignore")
slug = re.sub(r"[^\w]+", " ", slug)
slug = "-".join(slug.lower().strip().split())
if not slug: slug = "entry"
while True:
e = self.db.get("SELECT * FROM entries WHERE slug = %s", slug)
if not e: break
slug += "-2"
self.db.execute(
"INSERT INTO entries (author_id,title,slug,markdown,html,"
"published) VALUES (%s,%s,%s,%s,%s,UTC_TIMESTAMP())",
self.current_user.id, title, slug, text, html)
self.redirect("/entry/" + slug)
class AuthLoginHandler(BaseHandler, tornado.auth.GoogleMixin):
@tornado.web.asynchronous
def get(self):
if self.get_argument("openid.mode", None):
self.get_authenticated_user(self.async_callback(self._on_auth))
return
self.authenticate_redirect()
def _on_auth(self, user):
if not user:
raise tornado.web.HTTPError(500, "Google auth failed")
author = self.db.get("SELECT * FROM authors WHERE email = %s",
user["email"])
if not author:
# Auto-create first author
any_author = self.db.get("SELECT * FROM authors LIMIT 1")
if not any_author:
author_id = self.db.execute(
"INSERT INTO authors (email,name) VALUES (%s,%s)",
user["email"], user["name"])
else:
self.redirect("/")
return
else:
author_id = author["id"]
self.set_secure_cookie("user", str(author_id))
self.redirect(self.get_argument("next", "/"))
class AuthLogoutHandler(BaseHandler):
def get(self):
self.clear_cookie("user")
self.redirect(self.get_argument("next", "/"))
class EntryModule(tornado.web.UIModule):
def render(self, entry):
return self.render_string("modules/entry.html", entry=entry)
def main():
tornado.options.parse_command_line()
http_server = tornado.httpserver.HTTPServer(Application())
http_server.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
if __name__ == "__main__":
main()
|
