jupyter_lab_config.py

import os

CORS_ORIGIN = ''
CORS_ORIGIN_HOSTNAME = ''

if os.environ['CORS_ORIGIN'] != 'none':
    CORS_ORIGIN = os.environ.get('CORS_ORIGIN', '')
    CORS_ORIGIN_HOSTNAME = CORS_ORIGIN.split('://')[1]

headers = {
    'X-Frame-Options': 'ALLOWALL',
    'Content-Security-Policy':
        "; ".join([
            f"default-src 'self' https: {CORS_ORIGIN}",
            f"img-src 'self' data: {CORS_ORIGIN}",
            f"connect-src 'self' ws://{CORS_ORIGIN_HOSTNAME}",
            f"style-src 'unsafe-inline' 'self' {CORS_ORIGIN}",
            f"script-src https: 'unsafe-inline' 'unsafe-eval' 'self' {CORS_ORIGIN}"
        ])
}

# Configuration file for lab.

c = get_config()  #noqa

#------------------------------------------------------------------------------
# Application(SingletonConfigurable) configuration
#------------------------------------------------------------------------------
## This is an application.

## The date format used by logging formatters for %(asctime)s
#  Default: '%Y-%m-%d %H:%M:%S'
# c.Application.log_datefmt = '%Y-%m-%d %H:%M:%S'

## The Logging format template
#  Default: '[%(name)s]%(highlevel)s %(message)s'
# c.Application.log_format = '[%(name)s]%(highlevel)s %(message)s'

## Set the log level by value or name.
#  Choices: any of [0, 10, 20, 30, 40, 50, 'DEBUG', 'INFO', 'WARN', 'ERROR', 'CRITICAL']
#  Default: 30
# c.Application.log_level = 30

## Configure additional log handlers.
#  
#  The default stderr logs handler is configured by the log_level, log_datefmt
#  and log_format settings.
#  
#  This configuration can be used to configure additional handlers (e.g. to
#  output the log to a file) or for finer control over the default handlers.
#  
#  If provided this should be a logging configuration dictionary, for more
#  information see:
#  https://docs.python.org/3/library/logging.config.html#logging-config-
#  dictschema
#  
#  This dictionary is merged with the base logging configuration which defines
#  the following:
#  
#  * A logging formatter intended for interactive use called
#    ``console``.
#  * A logging handler that writes to stderr called
#    ``console`` which uses the formatter ``console``.
#  * A logger with the name of this application set to ``DEBUG``
#    level.
#  
#  This example adds a new handler that writes to a file:
#  
#  .. code-block:: python
#  
#     c.Application.logging_config = {
#         "handlers": {
#             "file": {
#                 "class": "logging.FileHandler",
#                 "level": "DEBUG",
#                 "filename": "<path/to/file>",
#             }
#         },
#         "loggers": {
#             "<application-name>": {
#                 "level": "DEBUG",
#                 # NOTE: if you don't list the default "console"
#                 # handler here then it will be disabled
#                 "handlers": ["console", "file"],
#             },
#         },
#     }
#  Default: {}
# c.Application.logging_config = {}

## Instead of starting the Application, dump configuration to stdout
#  Default: False
# c.Application.show_config = False

## Instead of starting the Application, dump configuration to stdout (as JSON)
#  Default: False
# c.Application.show_config_json = False

#------------------------------------------------------------------------------
# JupyterApp(Application) configuration
#------------------------------------------------------------------------------
## Base class for Jupyter applications

## Answer yes to any prompts.
#  Default: False
# c.JupyterApp.answer_yes = False

## Full path of a config file.
#  Default: ''
# c.JupyterApp.config_file = ''

## Specify a config file to load.
#  Default: ''
# c.JupyterApp.config_file_name = ''

## Generate default config file.
#  Default: False
# c.JupyterApp.generate_config = False

## The date format used by logging formatters for %(asctime)s
#  See also: Application.log_datefmt
# c.JupyterApp.log_datefmt = '%Y-%m-%d %H:%M:%S'

## The Logging format template
#  See also: Application.log_format
# c.JupyterApp.log_format = '[%(name)s]%(highlevel)s %(message)s'

## Set the log level by value or name.
#  See also: Application.log_level
# c.JupyterApp.log_level = 30

## 
#  See also: Application.logging_config
# c.JupyterApp.logging_config = {}

## Instead of starting the Application, dump configuration to stdout
#  See also: Application.show_config
# c.JupyterApp.show_config = False

## Instead of starting the Application, dump configuration to stdout (as JSON)
#  See also: Application.show_config_json
# c.JupyterApp.show_config_json = False

#------------------------------------------------------------------------------
# ExtensionApp(JupyterApp) configuration
#------------------------------------------------------------------------------
## Base class for configurable Jupyter Server Extension Applications.
#  
#      ExtensionApp subclasses can be initialized two ways:
#  
#      - Extension is listed as a jpserver_extension, and ServerApp calls
#        its load_jupyter_server_extension classmethod. This is the
#        classic way of loading a server extension.
#  
#      - Extension is launched directly by calling its `launch_instance`
#        class method. This method can be set as a entry_point in
#        the extensions setup.py.

## Answer yes to any prompts.
#  See also: JupyterApp.answer_yes
# c.ExtensionApp.answer_yes = False

## Full path of a config file.
#  See also: JupyterApp.config_file
# c.ExtensionApp.config_file = ''

## Specify a config file to load.
#  See also: JupyterApp.config_file_name
# c.ExtensionApp.config_file_name = ''

#  Default: ''
# c.ExtensionApp.default_url = ''

## Generate default config file.
#  See also: JupyterApp.generate_config
# c.ExtensionApp.generate_config = False

## Handlers appended to the server.
#  Default: []
# c.ExtensionApp.handlers = []

## The date format used by logging formatters for %(asctime)s
#  See also: Application.log_datefmt
# c.ExtensionApp.log_datefmt = '%Y-%m-%d %H:%M:%S'

## The Logging format template
#  See also: Application.log_format
# c.ExtensionApp.log_format = '[%(name)s]%(highlevel)s %(message)s'

## Set the log level by value or name.
#  See also: Application.log_level
# c.ExtensionApp.log_level = 30

## 
#  See also: Application.logging_config
# c.ExtensionApp.logging_config = {}

## Whether to open in a browser after starting.
#          The specific browser used is platform dependent and
#          determined by the python standard library `webbrowser`
#          module, unless it is overridden using the --browser
#          (ServerApp.browser) configuration option.
#  Default: False
# c.ExtensionApp.open_browser = False

## Settings that will passed to the server.
#  Default: {}
# c.ExtensionApp.settings = {}

## Instead of starting the Application, dump configuration to stdout
#  See also: Application.show_config
# c.ExtensionApp.show_config = False

## Instead of starting the Application, dump configuration to stdout (as JSON)
#  See also: Application.show_config_json
# c.ExtensionApp.show_config_json = False

## paths to search for serving static files.
#  
#          This allows adding javascript/css to be available from the notebook server machine,
#          or overriding individual files in the IPython
#  Default: []
# c.ExtensionApp.static_paths = []

## Url where the static assets for the extension are served.
#  Default: ''
# c.ExtensionApp.static_url_prefix = ''

## Paths to search for serving jinja templates.
#  
#          Can be used to override templates from notebook.templates.
#  Default: []
# c.ExtensionApp.template_paths = []

#------------------------------------------------------------------------------
# LabServerApp(ExtensionApp) configuration
#------------------------------------------------------------------------------
## A Lab Server Application that runs out-of-the-box

## "A list of comma-separated URIs to get the allowed extensions list
#  
#  .. versionchanged:: 2.0.0
#      `LabServerApp.whitetlist_uris` renamed to `allowed_extensions_uris`
#  Default: ''
# c.LabServerApp.allowed_extensions_uris = ''

## Answer yes to any prompts.
#  See also: JupyterApp.answer_yes
# c.LabServerApp.answer_yes = False

## The application settings directory.
#  Default: ''
# c.LabServerApp.app_settings_dir = ''

## The url path for the application.
#  Default: '/lab'
# c.LabServerApp.app_url = '/lab'

## Deprecated, use `LabServerApp.blocked_extensions_uris`
#  Default: ''
# c.LabServerApp.blacklist_uris = ''

## A list of comma-separated URIs to get the blocked extensions list
#  
#  .. versionchanged:: 2.0.0
#      `LabServerApp.blacklist_uris` renamed to `blocked_extensions_uris`
#  Default: ''
# c.LabServerApp.blocked_extensions_uris = ''

## Whether to cache files on the server. This should be `True` except in dev
#  mode.
#  Default: True
# c.LabServerApp.cache_files = True

## Full path of a config file.
#  See also: JupyterApp.config_file
# c.LabServerApp.config_file = ''

## Specify a config file to load.
#  See also: JupyterApp.config_file_name
# c.LabServerApp.config_file_name = ''

## Whether getting a relative (False) or absolute (True) path when copying a
#  path.
#  Default: False
# c.LabServerApp.copy_absolute_path = False

## Extra paths to look for federated JupyterLab extensions
#  Default: []
# c.LabServerApp.extra_labextensions_path = []

## Generate default config file.
#  See also: JupyterApp.generate_config
# c.LabServerApp.generate_config = False

## Handlers appended to the server.
#  See also: ExtensionApp.handlers
# c.LabServerApp.handlers = []

## Options to pass to the jinja2 environment for this
#  Default: {}
# c.LabServerApp.jinja2_options = {}

## The standard paths to look in for federated JupyterLab extensions
#  Default: []
# c.LabServerApp.labextensions_path = []

## The url for federated JupyterLab extensions
#  Default: ''
# c.LabServerApp.labextensions_url = ''

## The interval delay in seconds to refresh the lists
#  Default: 3600
# c.LabServerApp.listings_refresh_seconds = 3600

## The optional kwargs to use for the listings HTTP requests             as
#  described on https://2.python-requests.org/en/v2.7.0/api/#requests.request
#  Default: {}
# c.LabServerApp.listings_request_options = {}

## The listings url.
#  Default: ''
# c.LabServerApp.listings_url = ''

## The date format used by logging formatters for %(asctime)s
#  See also: Application.log_datefmt
# c.LabServerApp.log_datefmt = '%Y-%m-%d %H:%M:%S'

## The Logging format template
#  See also: Application.log_format
# c.LabServerApp.log_format = '[%(name)s]%(highlevel)s %(message)s'

## Set the log level by value or name.
#  See also: Application.log_level
# c.LabServerApp.log_level = 30

## 
#  See also: Application.logging_config
# c.LabServerApp.logging_config = {}

## Whether a notebook should start a kernel automatically.
#  Default: True
# c.LabServerApp.notebook_starts_kernel = True

## Whether to open in a browser after starting.
#  See also: ExtensionApp.open_browser
# c.LabServerApp.open_browser = False

## The optional location of the settings schemas directory. If given, a handler
#  will be added for settings.
#  Default: ''
# c.LabServerApp.schemas_dir = ''

## Settings that will passed to the server.
#  See also: ExtensionApp.settings
# c.LabServerApp.settings = {}

## The url path of the settings handler.
#  Default: ''
# c.LabServerApp.settings_url = ''

## Instead of starting the Application, dump configuration to stdout
#  See also: Application.show_config
# c.LabServerApp.show_config = False

## Instead of starting the Application, dump configuration to stdout (as JSON)
#  See also: Application.show_config_json
# c.LabServerApp.show_config_json = False

## The optional location of local static files. If given, a static file handler
#  will be added.
#  Default: ''
# c.LabServerApp.static_dir = ''

## paths to search for serving static files.
#  See also: ExtensionApp.static_paths
# c.LabServerApp.static_paths = []

## Url where the static assets for the extension are served.
#  See also: ExtensionApp.static_url_prefix
# c.LabServerApp.static_url_prefix = ''

## Paths to search for serving jinja templates.
#  See also: ExtensionApp.template_paths
# c.LabServerApp.template_paths = []

## The application templates directory.
#  Default: ''
# c.LabServerApp.templates_dir = ''

## The optional location of the themes directory. If given, a handler will be
#  added for themes.
#  Default: ''
# c.LabServerApp.themes_dir = ''

## The theme url.
#  Default: ''
# c.LabServerApp.themes_url = ''

## The url path of the translations handler.
#  Default: ''
# c.LabServerApp.translations_api_url = ''

## The url path of the tree handler.
#  Default: ''
# c.LabServerApp.tree_url = ''

## The optional location of the user settings directory.
#  Default: ''
# c.LabServerApp.user_settings_dir = ''

## Deprecated, use `LabServerApp.allowed_extensions_uris`
#  Default: ''
# c.LabServerApp.whitelist_uris = ''

## The url path of the workspaces API.
#  Default: ''
# c.LabServerApp.workspaces_api_url = ''

## The optional location of the saved workspaces directory. If given, a handler
#  will be added for workspaces.
#  Default: ''
# c.LabServerApp.workspaces_dir = ''

#------------------------------------------------------------------------------
# LabApp(LabServerApp) configuration
#------------------------------------------------------------------------------
## 
#  See also: LabServerApp.allowed_extensions_uris
# c.LabApp.allowed_extensions_uris = ''

## Answer yes to any prompts.
#  See also: JupyterApp.answer_yes
# c.LabApp.answer_yes = False

## The app directory to launch JupyterLab from.
#  Default: None
# c.LabApp.app_dir = None

## The application settings directory.
#  Default: ''
# c.LabApp.app_settings_dir = ''

## The url path for the application.
#  Default: '/lab'
# c.LabApp.app_url = '/lab'

## Deprecated, use `LabServerApp.blocked_extensions_uris`
#  See also: LabServerApp.blacklist_uris
# c.LabApp.blacklist_uris = ''

## 
#  See also: LabServerApp.blocked_extensions_uris
# c.LabApp.blocked_extensions_uris = ''

## Whether to cache files on the server. This should be `True` except in dev
#  mode.
#  Default: True
# c.LabApp.cache_files = True

## A callable class that receives the current version at instantiation and
#  calling it must return asynchronously a string indicating which version is
#  available and how to install or None if no update is available. The string
#  supports Markdown format.
#  Default: 'jupyterlab.handlers.announcements.CheckForUpdate'
# c.LabApp.check_for_updates_class = 'jupyterlab.handlers.announcements.CheckForUpdate'

## To enable real-time collaboration, you must install the extension `jupyter_collaboration`.
#          You can install it using pip for example:
#  
#              python -m pip install jupyter_collaboration
#  
#          This flag is now deprecated and will be removed in JupyterLab v5.
#  Default: False
# c.LabApp.collaborative = False

## Full path of a config file.
#  See also: JupyterApp.config_file
# c.LabApp.config_file = ''

## Specify a config file to load.
#  See also: JupyterApp.config_file_name
# c.LabApp.config_file_name = ''

## Whether getting a relative (False) or absolute (True) path when copying a
#  path.
#  Default: False
# c.LabApp.copy_absolute_path = False

## Whether to start the app in core mode. In this mode, JupyterLab
#          will run using the JavaScript assets that are within the installed
#          JupyterLab Python package. In core mode, third party extensions are disabled.
#          The `--dev-mode` flag is an alias to this to be used when the Python package
#          itself is installed in development mode (`pip install -e .`).
#  Default: False
# c.LabApp.core_mode = False

## Whether custom CSS is loaded on the page.
#      Defaults to False.
#  Default: False
# c.LabApp.custom_css = False

## The default URL to redirect to from `/`
#  Default: '/lab'
# c.LabApp.default_url = '/lab'

## Whether to start the app in dev mode. Uses the unpublished local
#          JavaScript packages in the `dev_mode` folder.  In this case JupyterLab will
#          show a red stripe at the top of the page.  It can only be used if JupyterLab
#          is installed as `pip install -e .`.
#  Default: False
# c.LabApp.dev_mode = False

## Whether to expose the global app instance to browser via window.jupyterapp
#  Default: False
# c.LabApp.expose_app_in_browser = False

## The extension manager factory to use. The default options are:
#          "readonly" for a manager without installation capability or "pypi" for
#          a manager using PyPi.org and pip to install extensions.
#  Default: 'pypi'
# c.LabApp.extension_manager = 'pypi'

## Whether to load prebuilt extensions in dev mode. This may be
#          useful to run and test prebuilt extensions in development installs of
#          JupyterLab. APIs in a JupyterLab development install may be
#          incompatible with published packages, so prebuilt extensions compiled
#          against published packages may not work correctly.
#  Default: False
# c.LabApp.extensions_in_dev_mode = False

## Extra paths to look for federated JupyterLab extensions
#  Default: []
# c.LabApp.extra_labextensions_path = []

## Generate default config file.
#  See also: JupyterApp.generate_config
# c.LabApp.generate_config = False

## Handlers appended to the server.
#  See also: ExtensionApp.handlers
# c.LabApp.handlers = []

## Options to pass to the jinja2 environment for this
#  Default: {}
# c.LabApp.jinja2_options = {}

## The standard paths to look in for federated JupyterLab extensions
#  Default: []
# c.LabApp.labextensions_path = []

## The url for federated JupyterLab extensions
#  Default: ''
# c.LabApp.labextensions_url = ''

## The interval delay in seconds to refresh the lists
#  See also: LabServerApp.listings_refresh_seconds
# c.LabApp.listings_refresh_seconds = 3600

## The optional kwargs to use for the listings HTTP requests             as
#  described on https://2.python-requests.org/en/v2.7.0/api/#requests.request
#  See also: LabServerApp.listings_request_options
# c.LabApp.listings_request_options = {}

## The listings url.
#  Default: ''
# c.LabApp.listings_url = ''

## Whether all plugins are locked (cannot be enabled/disabled from the UI)
#  Default: False
# c.LabApp.lock_all_plugins = False

## The date format used by logging formatters for %(asctime)s
#  See also: Application.log_datefmt
# c.LabApp.log_datefmt = '%Y-%m-%d %H:%M:%S'

## The Logging format template
#  See also: Application.log_format
# c.LabApp.log_format = '[%(name)s]%(highlevel)s %(message)s'

## Set the log level by value or name.
#  See also: Application.log_level
# c.LabApp.log_level = 30

## 
#  See also: Application.logging_config
# c.LabApp.logging_config = {}

## URL that serves news Atom feed; by default the JupyterLab organization
#  announcements will be fetched. Set to None to turn off fetching announcements.
#  Default: 'https://jupyterlab.github.io/assets/feed.xml'
# c.LabApp.news_url = 'https://jupyterlab.github.io/assets/feed.xml'

## Whether a notebook should start a kernel automatically.
#  Default: True
# c.LabApp.notebook_starts_kernel = True

## Whether to open in a browser after starting.
#  See also: ExtensionApp.open_browser
# c.LabApp.open_browser = False

## The override url for static lab assets, typically a CDN.
#  Default: ''
# c.LabApp.override_static_url = ''

## The override url for static lab theme assets, typically a CDN.
#  Default: ''
# c.LabApp.override_theme_url = ''

## The optional location of the settings schemas directory. If given, a handler
#  will be added for settings.
#  Default: ''
# c.LabApp.schemas_dir = ''

## Settings that will passed to the server.
#  See also: ExtensionApp.settings
# c.LabApp.settings = {}

## The url path of the settings handler.
#  Default: ''
# c.LabApp.settings_url = ''

## Instead of starting the Application, dump configuration to stdout
#  See also: Application.show_config
# c.LabApp.show_config = False

## Instead of starting the Application, dump configuration to stdout (as JSON)
#  See also: Application.show_config_json
# c.LabApp.show_config_json = False

## Whether to skip the initial install and JS build of the app in dev mode
#  Default: False
# c.LabApp.skip_dev_build = False

## Splice source packages into app directory.
#  Default: False
# c.LabApp.splice_source = False

## The optional location of local static files. If given, a static file handler
#  will be added.
#  Default: ''
# c.LabApp.static_dir = ''

## paths to search for serving static files.
#  See also: ExtensionApp.static_paths
# c.LabApp.static_paths = []

## Url where the static assets for the extension are served.
#  See also: ExtensionApp.static_url_prefix
# c.LabApp.static_url_prefix = ''

## Paths to search for serving jinja templates.
#  See also: ExtensionApp.template_paths
# c.LabApp.template_paths = []

## The application templates directory.
#  Default: ''
# c.LabApp.templates_dir = ''

## The optional location of the themes directory. If given, a handler will be
#  added for themes.
#  Default: ''
# c.LabApp.themes_dir = ''

## The theme url.
#  Default: ''
# c.LabApp.themes_url = ''

## The url path of the translations handler.
#  Default: ''
# c.LabApp.translations_api_url = ''

## The url path of the tree handler.
#  Default: ''
# c.LabApp.tree_url = ''

## The directory for user settings.
#  Default: '/home/jovyan/.jupyter/lab/user-settings'
# c.LabApp.user_settings_dir = '/home/jovyan/.jupyter/lab/user-settings'

## Whether to serve the app in watch mode
#  Default: False
# c.LabApp.watch = False

## Deprecated, use `LabServerApp.allowed_extensions_uris`
#  See also: LabServerApp.whitelist_uris
# c.LabApp.whitelist_uris = ''

## The url path of the workspaces API.
#  Default: ''
# c.LabApp.workspaces_api_url = ''

## The directory for workspaces
#  Default: '/home/jovyan/.jupyter/lab/workspaces'
# c.LabApp.workspaces_dir = '/home/jovyan/.jupyter/lab/workspaces'

#------------------------------------------------------------------------------
# ServerApp(JupyterApp) configuration
#------------------------------------------------------------------------------
## The Jupyter Server application class.

## Set the Access-Control-Allow-Credentials: true header
#  Default: False
c.ServerApp.allow_credentials = True

## Whether or not to allow external kernels, whose connection files are placed in
#  external_connection_dir.
#  Default: False
# c.ServerApp.allow_external_kernels = False

## Set the Access-Control-Allow-Origin header
#  
#          Use '*' to allow any origin to access your server.
#  
#          Takes precedence over allow_origin_pat.
#  Default: ''
c.ServerApp.allow_origin = '*'

## Use a regular expression for the Access-Control-Allow-Origin header
#  
#          Requests from an origin matching the expression will get replies with:
#  
#              Access-Control-Allow-Origin: origin
#  
#          where `origin` is the origin of the request.
#  
#          Ignored if allow_origin is set.
#  Default: ''
# c.ServerApp.allow_origin_pat = ''

## DEPRECATED in 2.0. Use PasswordIdentityProvider.allow_password_change
#  Default: True
# c.ServerApp.allow_password_change = True

## Allow requests where the Host header doesn't point to a local server
#  
#         By default, requests get a 403 forbidden response if the 'Host' header
#         shows that the browser thinks it's on a non-local domain.
#         Setting this option to True disables this check.
#  
#         This protects against 'DNS rebinding' attacks, where a remote web server
#         serves you a page and then changes its DNS to send later requests to a
#         local IP, bypassing same-origin checks.
#  
#         Local IP addresses (such as 127.0.0.1 and ::1) are allowed as local,
#         along with hostnames configured in local_hostnames.
#  Default: False
# c.ServerApp.allow_remote_access = False

## Whether to allow the user to run the server as root.
#  Default: False
c.ServerApp.allow_root = True

## Allow unauthenticated access to endpoints without authentication rule.
#  
#          When set to `True` (default in jupyter-server 2.0, subject to change
#          in the future), any request to an endpoint without an authentication rule
#          (either `@tornado.web.authenticated`, or `@allow_unauthenticated`)
#          will be permitted, regardless of whether user has logged in or not.
#  
#          When set to `False`, logging in will be required for access to each endpoint,
#          excluding the endpoints marked with `@allow_unauthenticated` decorator.
#  
#          This option can be configured using `JUPYTER_SERVER_ALLOW_UNAUTHENTICATED_ACCESS`
#          environment variable: any non-empty value other than "true" and "yes" will
#          prevent unauthenticated access to endpoints without `@allow_unauthenticated`.
#  Default: True
# c.ServerApp.allow_unauthenticated_access = True

## Answer yes to any prompts.
#  See also: JupyterApp.answer_yes
# c.ServerApp.answer_yes = False

## "
#          Require authentication to access prometheus metrics.
#  Default: True
# c.ServerApp.authenticate_prometheus = True

## The authorizer class to use.
#  Default: 'jupyter_server.auth.authorizer.AllowAllAuthorizer'
# c.ServerApp.authorizer_class = 'jupyter_server.auth.authorizer.AllowAllAuthorizer'

## Reload the webapp when changes are made to any Python src files.
#  Default: False
# c.ServerApp.autoreload = False

## The base URL for the Jupyter server.
#  
#                         Leading and trailing slashes can be omitted,
#                         and will automatically be added.
#  Default: '/'
c.ServerApp.base_url = '%s/ipython/' % os.environ.get('PROXY_PREFIX', '')

## Specify what command to use to invoke a web
#                        browser when starting the server. If not specified, the
#                        default browser will be determined by the `webbrowser`
#                        standard library module, which allows setting of the
#                        BROWSER environment variable to override it.
#  Default: ''
# c.ServerApp.browser = ''

## The full path to an SSL/TLS certificate file.
#  Default: ''
# c.ServerApp.certfile = ''

## The full path to a certificate authority certificate for SSL/TLS client
#  authentication.
#  Default: ''
# c.ServerApp.client_ca = ''

## Full path of a config file.
#  See also: JupyterApp.config_file
# c.ServerApp.config_file = ''

## Specify a config file to load.
#  See also: JupyterApp.config_file_name
# c.ServerApp.config_file_name = ''

## The config manager class to use
#  Default: 'jupyter_server.services.config.manager.ConfigManager'
# c.ServerApp.config_manager_class = 'jupyter_server.services.config.manager.ConfigManager'

## The content manager class to use.
#  Default: 'jupyter_server.services.contents.largefilemanager.AsyncLargeFileManager'
# c.ServerApp.contents_manager_class = 'jupyter_server.services.contents.largefilemanager.AsyncLargeFileManager'

## DEPRECATED. Use IdentityProvider.cookie_options
#  Default: {}
# c.ServerApp.cookie_options = {}

## The random bytes used to secure cookies.
#          By default this is generated on first start of the server and persisted across server
#          sessions by writing the cookie secret into the `cookie_secret_file` file.
#          When using an executable config file you can override this to be random at each server restart.
#  
#          Note: Cookie secrets should be kept private, do not share config files with
#          cookie_secret stored in plaintext (you can read the value from a file).
#  Default: b''
# c.ServerApp.cookie_secret = b''

## The file where the cookie secret is stored.
#  Default: ''
# c.ServerApp.cookie_secret_file = ''

## Override URL shown to users.
#  
#          Replace actual URL, including protocol, address, port and base URL,
#          with the given value when displaying URL to the users. Do not change
#          the actual connection URL. If authentication token is enabled, the
#          token is added to the custom URL automatically.
#  
#          This option is intended to be used when the URL to display to the user
#          cannot be determined reliably by the Jupyter server (proxified
#          or containerized setups for example).
#  Default: ''
# c.ServerApp.custom_display_url = ''

## The default URL to redirect to from `/`
#  Default: '/'
# c.ServerApp.default_url = '/'

## Disable cross-site-request-forgery protection
#  
#          Jupyter server includes protection from cross-site request forgeries,
#          requiring API requests to either:
#  
#          - originate from pages served by this server (validated with XSRF cookie and token), or
#          - authenticate with a token
#  
#          Some anonymous compute resources still desire the ability to run code,
#          completely without authentication.
#          These services can disable all authentication and security checks,
#          with the full knowledge of what that implies.
#  Default: False
# c.ServerApp.disable_check_xsrf = False

## The directory to look at for external kernel connection files, if
#  allow_external_kernels is True. Defaults to Jupyter
#  runtime_dir/external_kernels. Make sure that this directory is not filled with
#  left-over connection files, that could result in unnecessary kernel manager
#  creations.
#  Default: None
# c.ServerApp.external_connection_dir = None

## handlers that should be loaded at higher priority than the default services
#  Default: []
# c.ServerApp.extra_services = []

## Extra paths to search for serving static files.
#  
#          This allows adding javascript/css to be available from the Jupyter server machine,
#          or overriding individual files in the IPython
#  Default: []
# c.ServerApp.extra_static_paths = []

## Extra paths to search for serving jinja templates.
#  
#          Can be used to override templates from jupyter_server.templates.
#  Default: []
# c.ServerApp.extra_template_paths = []

## Open the named file when the application is launched.
#  Default: ''
# c.ServerApp.file_to_run = ''

## The URL prefix where files are opened directly.
#  Default: 'notebooks'
# c.ServerApp.file_url_prefix = 'notebooks'

## Generate default config file.
#  See also: JupyterApp.generate_config
# c.ServerApp.generate_config = False

## DEPRECATED. Use IdentityProvider.get_secure_cookie_kwargs
#  Default: {}
# c.ServerApp.get_secure_cookie_kwargs = {}

## The identity provider class to use.
#  Default: 'jupyter_server.auth.identity.PasswordIdentityProvider'
# c.ServerApp.identity_provider_class = 'jupyter_server.auth.identity.PasswordIdentityProvider'

## DEPRECATED. Use ZMQChannelsWebsocketConnection.iopub_data_rate_limit
#  Default: 0.0
# c.ServerApp.iopub_data_rate_limit = 0.0

## DEPRECATED. Use ZMQChannelsWebsocketConnection.iopub_msg_rate_limit
#  Default: 0.0
# c.ServerApp.iopub_msg_rate_limit = 0.0

## The IP address the Jupyter server will listen on.
#  Default: 'localhost'
c.ServerApp.ip = '0.0.0.0'

## Supply extra arguments that will be passed to Jinja environment.
#  Default: {}
# c.ServerApp.jinja_environment_options = {}

## Extra variables to supply to jinja templates when rendering.
#  Default: {}
# c.ServerApp.jinja_template_vars = {}

## Dict of Python modules to load as Jupyter server extensions.Entry values can
#  be used to enable and disable the loading ofthe extensions. The extensions
#  will be loaded in alphabetical order.
#  Default: {}
# c.ServerApp.jpserver_extensions = {}

## The kernel manager class to use.
#  Default: 'jupyter_server.services.kernels.kernelmanager.MappingKernelManager'
# c.ServerApp.kernel_manager_class = 'jupyter_server.services.kernels.kernelmanager.MappingKernelManager'

## The kernel spec manager class to use. Should be a subclass of
#  `jupyter_client.kernelspec.KernelSpecManager`.
#  
#  The Api of KernelSpecManager is provisional and might change without warning
#  between this version of Jupyter and the next stable one.
#  Default: 'builtins.object'
# c.ServerApp.kernel_spec_manager_class = 'builtins.object'

## The kernel websocket connection class to use.
#  Default: 'jupyter_server.services.kernels.connection.base.BaseKernelWebsocketConnection'
# c.ServerApp.kernel_websocket_connection_class = 'jupyter_server.services.kernels.connection.base.BaseKernelWebsocketConnection'

## DEPRECATED. Use ZMQChannelsWebsocketConnection.kernel_ws_protocol
#  Default: ''
# c.ServerApp.kernel_ws_protocol = ''

## The full path to a private key file for usage with SSL/TLS.
#  Default: ''
# c.ServerApp.keyfile = ''

## DEPRECATED. Use ZMQChannelsWebsocketConnection.limit_rate
#  Default: False
# c.ServerApp.limit_rate = False

## Hostnames to allow as local when allow_remote_access is False.
#  
#         Local IP addresses (such as 127.0.0.1 and ::1) are automatically accepted
#         as local as well.
#  Default: ['localhost']
# c.ServerApp.local_hostnames = ['localhost']

## The date format used by logging formatters for %(asctime)s
#  See also: Application.log_datefmt
# c.ServerApp.log_datefmt = '%Y-%m-%d %H:%M:%S'

## The Logging format template
#  See also: Application.log_format
# c.ServerApp.log_format = '[%(name)s]%(highlevel)s %(message)s'

## Set the log level by value or name.
#  See also: Application.log_level
# c.ServerApp.log_level = 30

## 
#  See also: Application.logging_config
# c.ServerApp.logging_config = {}

## The login handler class to use.
#  Default: 'jupyter_server.auth.login.LegacyLoginHandler'
# c.ServerApp.login_handler_class = 'jupyter_server.auth.login.LegacyLoginHandler'

## The logout handler class to use.
#  Default: 'jupyter_server.auth.logout.LogoutHandler'
# c.ServerApp.logout_handler_class = 'jupyter_server.auth.logout.LogoutHandler'

## Sets the maximum allowed size of the client request body, specified in the
#  Content-Length request header field. If the size in a request exceeds the
#  configured value, a malformed HTTP message is returned to the client.
#  
#  Note: max_body_size is applied even in streaming mode.
#  Default: 536870912
# c.ServerApp.max_body_size = 536870912

## Gets or sets the maximum amount of memory, in bytes, that is allocated for use
#  by the buffer manager.
#  Default: 536870912
# c.ServerApp.max_buffer_size = 536870912

## Gets or sets a lower bound on the open file handles process resource limit.
#  This may need to be increased if you run into an OSError: [Errno 24] Too many
#  open files. This is not applicable when running on Windows.
#  Default: 0
# c.ServerApp.min_open_files_limit = 0

## DEPRECATED, use root_dir.
#  Default: ''
# c.ServerApp.notebook_dir = ''

## Whether to open in a browser after starting.
#                          The specific browser used is platform dependent and
#                          determined by the python standard library `webbrowser`
#                          module, unless it is overridden using the --browser
#                          (ServerApp.browser) configuration option.
#  Default: False
# c.ServerApp.open_browser = False

## DEPRECATED in 2.0. Use PasswordIdentityProvider.hashed_password
#  Default: ''
# c.ServerApp.password = ''

## DEPRECATED in 2.0. Use PasswordIdentityProvider.password_required
#  Default: False
# c.ServerApp.password_required = False

## The port the server will listen on (env: JUPYTER_PORT).
#  Default: 0
# c.ServerApp.port = 0

## The number of additional ports to try if the specified port is not available
#  (env: JUPYTER_PORT_RETRIES).
#  Default: 50
# c.ServerApp.port_retries = 50

## Preferred starting directory to use for notebooks and kernels.
#  ServerApp.preferred_dir is deprecated in jupyter-server 2.0. Use
#  FileContentsManager.preferred_dir instead
#  Default: ''
# c.ServerApp.preferred_dir = ''

## DISABLED: use %pylab or %matplotlib in the notebook to enable matplotlib.
#  Default: 'disabled'
# c.ServerApp.pylab = 'disabled'

## If True, display controls to shut down the Jupyter server, such as menu items
#  or buttons.
#  Default: True
# c.ServerApp.quit_button = True

## DEPRECATED. Use ZMQChannelsWebsocketConnection.rate_limit_window
#  Default: 0.0
# c.ServerApp.rate_limit_window = 0.0

## Reraise exceptions encountered loading server extensions?
#  Default: False
# c.ServerApp.reraise_server_extension_failures = False

## The directory to use for notebooks and kernels.
#  Default: ''
# c.ServerApp.root_dir = ''

## The session manager class to use.
#  Default: 'builtins.object'
# c.ServerApp.session_manager_class = 'builtins.object'

## Instead of starting the Application, dump configuration to stdout
#  See also: Application.show_config
# c.ServerApp.show_config = False

## Instead of starting the Application, dump configuration to stdout (as JSON)
#  See also: Application.show_config_json
# c.ServerApp.show_config_json = False

## Shut down the server after N seconds with no kernelsrunning and no activity.
#  This can be used together with culling idle kernels
#  (MappingKernelManager.cull_idle_timeout) to shutdown the Jupyter server when
#  it's not in use. This is not precisely timed: it may shut down up to a minute
#  later. 0 (the default) disables this automatic shutdown.
#  Default: 0
# c.ServerApp.shutdown_no_activity_timeout = 0

## The UNIX socket the Jupyter server will listen on.
#  Default: ''
# c.ServerApp.sock = ''

## The permissions mode for UNIX socket creation (default: 0600).
#  Default: '0600'
# c.ServerApp.sock_mode = '0600'

## Supply SSL options for the tornado HTTPServer.
#              See the tornado docs for details.
#  Default: {}
# c.ServerApp.ssl_options = {}

## Paths to set up static files as immutable.
#  
#  This allow setting up the cache control of static files as immutable. It
#  should be used for static file named with a hash for instance.
#  Default: []
# c.ServerApp.static_immutable_cache = []

## Supply overrides for terminado. Currently only supports "shell_command".
#  Default: {}
# c.ServerApp.terminado_settings = {}

## Set to False to disable terminals.
#  
#           This does *not* make the server more secure by itself.
#           Anything the user can in a terminal, they can also do in a notebook.
#  
#           Terminals may also be automatically disabled if the terminado package
#           is not available.
#  Default: False
# c.ServerApp.terminals_enabled = False

## DEPRECATED. Use IdentityProvider.token
#  Default: '<DEPRECATED>'
# c.ServerApp.token = '<DEPRECATED>'

## Supply overrides for the tornado.web.Application that the Jupyter server uses.
#  Default: {}
c.ServerApp.tornado_settings = {
    'static_url_prefix': '%s/ipython/static/' % os.environ.get('PROXY_PREFIX', ''),
    'headers': headers
}

## Whether to trust or not X-Scheme/X-Forwarded-Proto and X-Real-Ip/X-Forwarded-
#  For headerssent by the upstream reverse proxy. Necessary if the proxy handles
#  SSL
#  Default: False
# c.ServerApp.trust_xheaders = False

## Disable launching browser by redirect file
#       For versions of notebook > 5.7.2, a security feature measure was added that
#       prevented the authentication token used to launch the browser from being visible.
#       This feature makes it difficult for other users on a multi-user system from
#       running code in your Jupyter session as you.
#       However, some environments (like Windows Subsystem for Linux (WSL) and Chromebooks),
#       launching a browser using a redirect file can lead the browser failing to load.
#       This is because of the difference in file structures/paths between the runtime and
#       the browser.
#  
#       Disabling this setting to False will disable this behavior, allowing the browser
#       to launch by using a URL and visible token (as before).
#  Default: True
# c.ServerApp.use_redirect_file = True

## Specify where to open the server on startup. This is the
#          `new` argument passed to the standard library method `webbrowser.open`.
#          The behaviour is not guaranteed, but depends on browser support. Valid
#          values are:
#  
#           - 2 opens a new tab,
#           - 1 opens a new window,
#           - 0 opens in an existing window.
#  
#          See the `webbrowser.open` documentation for details.
#  Default: 2
# c.ServerApp.webbrowser_open_new = 2

## Set the tornado compression options for websocket connections.
#  
#  This value will be returned from
#  :meth:`WebSocketHandler.get_compression_options`. None (default) will disable
#  compression. A dict (even an empty one) will enable compression.
#  
#  See the tornado docs for WebSocketHandler.get_compression_options for details.
#  Default: None
# c.ServerApp.websocket_compression_options = None

## Configure the websocket ping interval in seconds.
#  
#  Websockets are long-lived connections that are used by some Jupyter Server
#  extensions.
#  
#  Periodic pings help to detect disconnected clients and keep the connection
#  active. If this is set to None, then no pings will be performed.
#  
#  When a ping is sent, the client has ``websocket_ping_timeout`` seconds to
#  respond. If no response is received within this period, the connection will be
#  closed from the server side.
#  Default: 0
# c.ServerApp.websocket_ping_interval = 0

## Configure the websocket ping timeout in seconds.
#  
#  See ``websocket_ping_interval`` for details.
#  Default: 0
# c.ServerApp.websocket_ping_timeout = 0

## The base URL for websockets,
#          if it differs from the HTTP server (hint: it almost certainly doesn't).
#  
#          Should be in the form of an HTTP origin: ws[s]://hostname[:port]
#  Default: ''
# c.ServerApp.websocket_url = ''


if os.environ.get('NOTEBOOK_PASSWORD', 'none') != 'none':
    c.NotebookApp.password = os.environ['NOTEBOOK_PASSWORD']
    del os.environ['NOTEBOOK_PASSWORD']

if CORS_ORIGIN:
    c.NotebookApp.allow_origin = CORS_ORIGIN