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mdserver.py
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mdserver.py
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#!/usr/bin/env python
#-*-encoding: utf-8 -*-
import os, sys, codecs, re
import markdown2 as markdown
import bottle
from bottle import route, run, template, static_file, get, post, view, request, response, TEMPLATE_PATH, Bottle, hook, redirect
import beaker.middleware
from search import Search
import simpleyaml
import qrcode
import StringIO
MDSERVER_HOME = None
TEMPLATE_PATH = [os.path.join(os.getcwd(), "views")]
MDSERVER_DATA_HOME = os.path.expanduser("~/.mdserver")
session_opts = {
'session.type': 'file',
'session.data_dir': MDSERVER_DATA_HOME + '/session/',
'session.auto': True,
}
app = beaker.middleware.SessionMiddleware(bottle.app(), session_opts)
class User:
def __init__(self, username, role):
self.username = username
self.role = role
class Config:
def __init__(self):
config = simpleyaml.safe_load(open(MDSERVER_DATA_HOME + "/config.yaml"))
self.roles = config["roles"]
self.roles["public"] = ["public"]
self.users = config["users"]
def authenticate(self, username, password):
return username in self.users and self.users[username]['password'] == password
def get_role_by_username(self, username):
user = self.users[username]
if not user:
return "public"
else:
return user["role"]
def get_dirs_by_role(self, role):
return self.roles[role]
def has_right(self, role, folder):
return folder in self.roles[role]
def is_login_required(self, url):
staticFilePattren = '^/static/'
return (not url in ["/login", "/not-authorized", "/logout"]) and not re.search(staticFilePattren, url)
config = Config()
def session_get(key):
session = bottle.request.environ.get('beaker.session')
return session.get(key)
def session_set(key, value):
session = bottle.request.environ.get('beaker.session')
session[key] = value
session.save()
def session_get_role():
user = session_get("user")
if not user:
return "public"
return user.role
def post_get(name, default=''):
return bottle.request.POST.get(name, default).strip()
def is_logined():
return not session_get("user") is None
@hook('before_request')
def auth_hook():
# everyone can access "/public"
if request.path.startswith("/public") or request.path == "/":
return
# role based authentication
if config.is_login_required(request.path):
if not is_logined():
redirect("/login")
role = session_get_role()
# super user can access anything
if role == "super":
return
valid_paths = config.get_dirs_by_role(role)
for p in valid_paths:
if request.path.startswith("/" + p + "/") or request.path == "/" + p:
return
redirect("/not-authorized")
@get("/not-authorized")
def not_authorized():
return "Access Denied!"
@get("/login")
@view("login")
def login():
return dict()
@post("/login")
def login_post():
username = request.forms.get("username")
password = request.forms.get("password")
if config.authenticate(username, password):
role = config.get_role_by_username(username)
user = User(username, role)
session_set("user", user)
redirect("/")
else:
redirect("/login")
@get("/logout")
def logout():
session_set("user", None)
redirect("/")
@get('/<filename:re:static\/.*\.(css|js|png|jpg|gif|ico)>')
def static_files(filename):
return static_file(filename, root=MDSERVER_HOME + "/")
@get('/<filename:re:.*\.(png|jpg|gif|ico)>')
def images(filename):
return static_file(filename, root = os.getcwd())
@route('/search')
@view('search')
def search_files():
keyword = request.GET.get('w')
if len(keyword) > 0:
keyword = keyword.strip()
s = Search(os.getcwd(), keyword.decode("utf-8"), ("*.markdown", "*.md"))
result = s.walk()
result = [x for x in result if x[1] is not None]
result = map(lambda x : [x[0][len(os.getcwd()):len(x[0])], x[1]], result)
return dict(results = result, keyword = keyword, request = request)
@route('/<filename:re:.*\.markdown>')
@route('/<filename:re:.*\.md>')
@view('markdown')
def markdown_files(filename):
fullpath = os.getcwd() + "/" + filename
input_file = codecs.open(fullpath, mode="r", encoding="utf-8")
text = input_file.read()
html = markdown.markdown(
text,
extras = ["tables", "code-friendly", "fenced-code-blocks"]
)
return dict(html = html, request = request)
def extract_file_title(fullpath):
input_file = codecs.open(fullpath, mode="r", encoding="utf-8")
name = input_file.readline()
name = name.strip("#")
input_file.close()
return name
@get('/<filename:re:.*\.qr>')
def get_qrcode(filename):
actual_path = request.url[0:-3]
qrcode_img = qrcode.make(actual_path)
response.content_type = 'image/png'
buf = StringIO.StringIO()
qrcode_img.save(buf, "PNG")
contents = buf.getvalue()
return contents
@route('/<filename:re:.*\.xml>')
def xml_files(filename):
fullpath = os.getcwd() + "/" + filename
input_file = codecs.open(fullpath, mode="r", encoding="utf-8")
text = input_file.read()
response.content_type = "text/xml"
return text
@route('/<filename:re:.*>')
@view('directory')
def directories(filename):
fullpath = os.getcwd() + "/" + filename
relativepath = "/" + filename + "/"
if len(filename) == 0:
relativepath = "/"
files = os.listdir(fullpath)
files = [x for x in files if not x.startswith(".")]
role = session_get_role()
if relativepath == "/" and not role == "super":
files = [x for x in files if config.has_right(role, x)]
filemap = []
for f in files:
fullpath = os.getcwd() + relativepath + "/" + f
name = f
is_dir = os.path.isdir(fullpath)
if os.path.isdir(fullpath):
namepath = fullpath + "/.name"
if os.path.exists(namepath):
name = extract_file_title(namepath)
elif f.endswith(".markdown") or f.endswith(".md") or f.endswith(".txt"):
name = extract_file_title(fullpath)
filemap.append([name, f, is_dir])
return dict(filemap = filemap, relativepath = relativepath, request = request)
if __name__ == '__main__':
if len(sys.argv) < 2:
print """Usage: mdserver.py <MDSERVER_HOME>"""
else:
MDSERVER_HOME = sys.argv[1]
bottle.TEMPLATE_PATH = [os.path.join(MDSERVER_HOME, "views")]
bottle.run(app = app, host='0.0.0.0', port=80)