repo2docker start env

insecure_param_setenv_ext.json

{
  "ServerApp": {
    "jpserver_extensions": {
      "insecure_param_setenv_ext": true
    }
  }
}

insecure_param_setenv_ext.py

import os
from jupyter_server.auth import authorized
from jupyter_server.extension.application import ExtensionApp
from jupyter_server.base.handlers import JupyterHandler


class InsecureParamSetenvHandler(JupyterHandler):
    @authorized
    def get(self):
        for key in self.request.query_arguments:
            val = self.get_query_argument(key)
            name = key.upper()
            self.log.info(f"INSECURE: Setting secure environment variable from URL parameter: {name}={val}")
            os.environ[name] = val

        self.redirect(self.settings.get("lab_url", "/lab"))


class InsecureParamSetenvExtension(ExtensionApp):
    name = "insecure_param_setenv_ext"

    def initialize_handlers(self):
        self.handlers.extend([
            (r"/insecure-param-setenv", InsecureParamSetenvHandler)
        ])


def _jupyter_server_extension_points():
    """
    Returns a list of dictionaries with metadata describing
    where to find the `_load_jupyter_server_extension` function.
    """
    return [{"module": "insecure_param_setenv_ext"}]


def _load_jupyter_server_extension(serverapp: jupyter_server.serverapp.ServerApp):
    handlers = [("/insecure-param-setenv", InsecureParamSetenvExtension)]
    serverapp.web_app.add_handlers(".*$", handlers)


# main = launch_instance = InsecureParamSetenvExtension.launch_instance

postBuild

#!/bin/bash
set -eux

USER_SITE_DIR=$(python -msite --user-site)
mkdir -p "$USER_SITE_DIR"
mv insecure_param_setenv_ext.py "$USER_SITE_DIR"

mv insecure_param_setenv_ext.json /srv/conda/envs/notebook/etc/jupyter/jupyter_server_config.d/

runtime.txt

python-3.14