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authrevproxy.py: basic port to python3 and Twisted 24.11.0 #13

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authrevproxy.py: basic port to python3 and Twisted 24.11.0 #13

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20 changes: 11 additions & 9 deletions sh_tensorboard/template/bin/authrevproxy.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
#!/usr/bin/python
#!/usr/bin/python3

# provides a reverse proxy that only allows requests coming from the same
# user it's running as
Expand All @@ -7,11 +7,14 @@
# cookie, where:
# <session_id> is the OnDemand Session id
# <password> is the password defined in the template/before.sh script
#
# depends python >= 3.3 and tested with Twisted==24.11.0

from twisted.internet import reactor, endpoints
from twisted.web import proxy, server
from twisted.web.resource import Resource
from twisted.web.error import ForbiddenResource
from twisted.web.error import Error
from twisted.web.pages import forbidden

import argparse
import getpass
Expand Down Expand Up @@ -45,28 +48,27 @@ def getChild(self, path, request):
# - cookie name depends on the ood interactive session id ($PWD)
ood_session_id = os.path.basename(os.getcwd())
try:
cookie = request.getCookie('_ood_token_' + ood_session_id)
cookie = request.getCookie(('_ood_token_' + ood_session_id).encode('utf-8'))

except:
cookie = None

# get token from environment
# - $_ood_token_<session_id> is set in template/before.sh script
try:
ood_token = os.environ.get("_ood_token_" +
ood_session_id.replace("-", "_"))
ood_token_key = "_ood_token_" + ood_session_id.replace("-", "_")
ood_token = os.environ.get(ood_token_key).encode('utf-8')
except:
ood_token = None

# check that cookie matches the local token
if cookie == ood_token and cookie != None:
return proxy.ReverseProxyResource(self.host,
self.port,
'/' + path)
b'/' + path)

# no cheese for you
request.setResponseCode(403)
return ForbiddenResource()
return forbidden()


#
Expand All @@ -87,7 +89,7 @@ def parse_args(argv=sys.argv[1:]):
def main(argv=sys.argv[1:]):
args = parse_args(argv)
print('authrevproxy is starting on port {} -> {}'.format(args.proxy_port,
args.app_port) )
args.app_port), flush=True)
dest = TokenResource('127.0.0.1', args.app_port, '')
site = server.Site(dest)

Expand Down