mirror of
https://github.com/jupyterhub/jupyterhub.git
synced 2025-10-07 18:14:10 +00:00
133 lines
3.8 KiB
Python
133 lines
3.8 KiB
Python
import os
|
|
from functools import wraps
|
|
from html import escape
|
|
from urllib.parse import urlparse
|
|
|
|
from tornado.httpserver import HTTPServer
|
|
from tornado.ioloop import IOLoop
|
|
from tornado.web import Application, RequestHandler, authenticated
|
|
|
|
from jupyterhub.services.auth import HubOAuthCallbackHandler, HubOAuthenticated
|
|
from jupyterhub.utils import url_path_join
|
|
|
|
SCOPE_PREFIX = "custom:grades"
|
|
READ_SCOPE = f"{SCOPE_PREFIX}:read"
|
|
WRITE_SCOPE = f"{SCOPE_PREFIX}:write"
|
|
|
|
|
|
def require_scope(scopes):
|
|
"""Decorator to require scopes
|
|
|
|
For use if multiple methods on one Handler
|
|
may want different scopes,
|
|
so class-level .hub_scopes is insufficient
|
|
(e.g. read for GET, write for POST).
|
|
"""
|
|
if isinstance(scopes, str):
|
|
scopes = [scopes]
|
|
|
|
def wrap(method):
|
|
"""The actual decorator"""
|
|
|
|
@wraps(method)
|
|
@authenticated
|
|
def wrapped(self, *args, **kwargs):
|
|
self.hub_scopes = scopes
|
|
return method(self, *args, **kwargs)
|
|
|
|
return wrapped
|
|
|
|
return wrap
|
|
|
|
|
|
class MyGradesHandler(HubOAuthenticated, RequestHandler):
|
|
# no hub_scopes, anyone with access to this service
|
|
# will be able to visit this URL
|
|
|
|
@authenticated
|
|
def get(self):
|
|
self.write("<h1>My grade</h1>")
|
|
name = self.current_user["name"]
|
|
grades = self.settings["grades"]
|
|
self.write(f"<p>My name is: {escape(name)}</p>")
|
|
if name in grades:
|
|
self.write(f"<p>My grade is: {escape(str(grades[name]))}</p>")
|
|
else:
|
|
self.write("<p>No grade entered</p>")
|
|
if READ_SCOPE in self.current_user["scopes"]:
|
|
self.write('<a href="grades/">enter grades</a>')
|
|
|
|
|
|
class GradesHandler(HubOAuthenticated, RequestHandler):
|
|
# default scope for this Handler: read-only
|
|
hub_scopes = [READ_SCOPE]
|
|
|
|
def _render(self):
|
|
grades = self.settings["grades"]
|
|
self.write("<h1>All grades</h1>")
|
|
self.write("<table>")
|
|
self.write("<tr><th>Student</th><th>Grade</th></tr>")
|
|
for student, grade in grades.items():
|
|
qstudent = escape(student)
|
|
qgrade = escape(str(grade))
|
|
self.write(
|
|
f"""
|
|
<tr>
|
|
<td class="student">{qstudent}</td>
|
|
<td class="grade">{qgrade}</td>
|
|
</tr>
|
|
"""
|
|
)
|
|
if WRITE_SCOPE in self.current_user["scopes"]:
|
|
self.write("Enter grade:")
|
|
self.write(
|
|
"""
|
|
<form action=. method=POST>
|
|
<input name=student placeholder=student></input>
|
|
<input kind=number name=grade placeholder=grade></input>
|
|
<input type="submit" value="Submit">
|
|
"""
|
|
)
|
|
|
|
@require_scope([READ_SCOPE])
|
|
async def get(self):
|
|
self._render()
|
|
|
|
# POST requires WRITE_SCOPE instead of READ_SCOPE
|
|
@require_scope([WRITE_SCOPE])
|
|
async def post(self):
|
|
name = self.get_argument("student")
|
|
grade = self.get_argument("grade")
|
|
self.settings["grades"][name] = grade
|
|
self._render()
|
|
|
|
|
|
def main():
|
|
base_url = os.environ['JUPYTERHUB_SERVICE_PREFIX']
|
|
|
|
app = Application(
|
|
[
|
|
(base_url, MyGradesHandler),
|
|
(url_path_join(base_url, 'grades/'), GradesHandler),
|
|
(
|
|
url_path_join(base_url, 'oauth_callback'),
|
|
HubOAuthCallbackHandler,
|
|
),
|
|
],
|
|
cookie_secret=os.urandom(32),
|
|
grades={"student": 53},
|
|
)
|
|
|
|
http_server = HTTPServer(app)
|
|
url = urlparse(os.environ['JUPYTERHUB_SERVICE_URL'])
|
|
|
|
http_server.listen(url.port, url.hostname)
|
|
try:
|
|
IOLoop.current().start()
|
|
except KeyboardInterrupt:
|
|
pass
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|