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import os, sys, time, webbrowser
from quixote.directory import Directory
from quixote.publish import Publisher
from quixote.session import Session, SessionManager
from quixote.server import simple_server
from quixote.errors import AccessError
from quixote import get_response, get_user
from quixote.html import href
elinks = webbrowser.GenericBrowser('xterm -e elinks %s')
lynx = webbrowser.GenericBrowser('xterm -e lynx -accept_all_cookies %s')
webbrowser.register("elinks", webbrowser.GenericBrowser, elinks)
webbrowser.register("lynx", webbrowser.GenericBrowser, lynx) # second choice
webbrowser.register("konqueror", webbrowser.Konqueror)
class RecognizeExports(type):
def __init__(cls, name, bases, dic):
super(RecognizeExports, cls).__init__(cls, name, bases, dic)
for k in dic: setattr(cls, k, dic[k])
def __setattr__(cls, name, value):
if hasattr(value, "_q_exported"):
cls._q_exports.append(name)
super(RecognizeExports, cls).__setattr__(name, value)
# by definition, the root directory is a singleton
class RootDirectory(Directory):
_q_exports = [""]
__metaclass__ = RecognizeExports
__Publisher = Publisher
__port = 7080
def _q_index(self):
return "Welcome to the root of your application."
def __init__(self, server=simple_server, Publisher=Publisher,
Session=Session, session_mapping=None, port=7080):
self.__server = server
self.__Publisher = Publisher
self.__Session = Session
self.__session_mapping = session_mapping
self.__port = port
#set_default == __init__
def publish(self):
create_pub = lambda : self.__Publisher(self)
self.__server.run(create_pub, '', self.__port)
def publish_show(self, page="", browser="mozilla"):
if os.fork(): # parent
self.publish()
else: # child
webbrowser.get(browser).open(
"http://localhost:%s/%s" % (self.__port, page))
class UnauthorizedError(AccessError):
"""The request requires user authentication.
This subclass of AccessError sends a 401 instead of a 403,
hinting that the client should try again with authentication.
"""
status_code = 401
title = "Unauthorized"
description = "You are not authorized to access this resource."
def __init__(self, realm='Protected', public_msg=None, private_msg=None):
self.realm = realm
AccessError.__init__(self, public_msg, private_msg)
def format(self):
get_response().set_header(
'WWW-Authenticate', 'Basic realm="%s"' % self.realm)
return AccessError.format(self)
class User(object):
def __init__(self, username, password):
self.username = username
self.password = password
def __str__(self):
return "<User: %s %s>" % (self.username, self.password)
def permissions(self):
"""Returns the list of methods starting with 'can_'."""
return [perm for perm in dir(self) if perm.startswith("can_")]
def public(f):
f._q_exported = True
return f
class private(object):
"""Redirect to the login page if the user is not logged in or if he does
not have the right permissions."""
# obviously, this assumes a login page exists and is called 'login'
def __init__(self, *groups_with_access):
self.valid_groups = groups_with_access or (User,)
def __call__(self, method):
def wrapper(root):
user = get_user()
if not user or not isinstance(user, self.valid_groups):
root.resume = meth_name
valid_groups = ", ".join(
cls.__name__ for cls in self.valid_groups)
return "You are trying to access a page restricted to %s. " % \
valid_groups + href(
"login", "Please login as a valid user.")
else:
return method(root)
meth_name = method.func_name
wrapper.func_name = meth_name
wrapper._q_exported = True
return wrapper
######################## deprecated ############################
def old_public(f):
"""Append f.__name__ to the caller's _q_exports. If the caller has
no _q_exports, creates it."""
_q_exports = sys._getframe(1).f_locals.setdefault("_q_exports",[""])
_q_exports.append(f.__name__)
return f
class old_private(object):
"""Redirect to the login page if the user is not logged in or if he does
not have the right permissions."""
# obviously, this assumes a login page exists and is called 'login'
def __init__(self, *groups_with_access):
self.valid_groups = groups_with_access or (User,)
def __call__(self, method):
def wrapper(root):
user = get_user()
if not user or not isinstance(user, self.valid_groups):
root.resume = meth_name
valid_groups = ", ".join(cls.__name__ for cls in self.valid_groups)
return "You are trying to access a page restricted to %s. " % \
valid_groups + href("login", "Please login as a valid user.")
else:
return method(root)
meth_name = method.func_name
_q_exports = sys._getframe(1).f_locals.setdefault("_q_exports",[""])
_q_exports.append(meth_name)
wrapper.func_name = meth_name
return wrapper
from ms.iter_utils import Cycle, chop
class MultipageTable(object):
# use Quixote forms
def __init__(self, body, header=[], maxsize=20):
self.header = header
self.maxsize = maxsize
self.section = Cycle(chop(body, maxsize))
self.sect = self.section[0] # default
self.ismultipage = len(self.section) > 1
def makerow(self, row, header=False):
if header:
r = " ".join("<th>%s</th>" % col for col in row)
else:
r = " ".join("<td>%s</td>" % col for col in row)
return "<tr>%s</tr>" % r
def maketable(self):
#yield "<div align='center'>"
if self.ismultipage:
form = Form()
form.add(SubmitWidget, "prev", "Prev")
form.add(SubmitWidget, "next", "Next")
if form["next"]: # is submitted
self.sect = self.section.next()
if form["prev"]: # is submitted
self.sect = self.section.prev()
yield "Page #%s of %s" % (self.section.index+1, len(self.section))
yield "<table border='1'>"
if self.header:
yield self.makerow(self.header)
for row in self.sect:
yield self.makerow(row)
yield "</table>"
if self.ismultipage:
yield form.render()
#yield "</div>"
def render(self):
return htmltext("\n").join(map(htmltext, self.maketable()))
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