Configuring the Server #499

Sailor-Fhem · 2024-10-12T16:01:32Z

Sailor-Fhem
Oct 12, 2024

The user manual https://open-web-calendar.quelltext.eu/host/configure/
describes how to change the default settings in the file default_specification.yml which is located at
/usr/local/lib/python3.12/dist-packages/open_web_calendar/

However, I cannot find the file described https://open-web-calendar.quelltext.eu/host/configure/#configuring-the-server in order to configure open-web-calendar in a way that it works with the following parameter

ICS-File: http://192.168.178.7:80/calendar.ics
Homepage: http://192.168.178.7:80/index.html
which contains contains the code

<iframe id="open-web-calendar" 
		style="background:url('https://raw.githubusercontent.com/niccokunzmann/open-web-calendar/master/static/img/loaders/circular-loader.gif') center center no-repeat;"
		src="http://192.168.178.7:8000/calendar.html?css=.CALENDAR-INDEX-0%2C%20.CALENDAR-INDEX-0%20.dhx_body%2C%20.CALENDAR-INDEX-0%20.dhx_title%20%20%7B%20background-color%3A%20%23cc0000%3B%20%7D%20%0A&amp;url=192.168.178.7:80/calendar.ics"
		sandbox="allow-scripts allow-same-origin allow-top-navigation"
		allowTransparency="true" 
		scrolling="no" 
		frameborder="0" height="600px" width="100%">
</iframe>

Remark: Webpage and open-web-calendar:app are on the same host and shall be accessible from other hosts in the same network.

Instead I receive just the expected error message

Unable to connect
Firefox can’t establish a connection to the server at 192.168.178.7:8000.

    The site could be temporarily unavailable or too busy. Try again in a few moments.
    If you are unable to load any pages, check your computer’s network connection.
    If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

The process itself is started on the host:


[email protected]:/$ gunicorn open_web_calendar:app
[2024-10-12 17:52:31 +0200] [119252] [INFO] Starting gunicorn 23.0.0
[2024-10-12 17:52:31 +0200] [119252] [INFO] Listening at: http://127.0.0.1:8000 (119252)
[2024-10-12 17:52:31 +0200] [119252] [INFO] Using worker: sync
[2024-10-12 17:52:31 +0200] [119253] [INFO] Booting worker with pid: 119253

I am reading the manuals for a while now, but sticking in the process.

Thanks for help again!

Sailor

Answered by niccokunzmann

Oct 12, 2024

Hi, I have opened an issue to make it easier to modify the default values #459 For now, the Python Package and docker have this problem: It is hard to modify.

When I read this:

http://127.0.0.1:8000

I would say you can only access this server from localhost. It should be more like 0.0.0.0:8000 in order to allow access from everywhere. I am wonder

Try:

gunicorn -b 0.0.0.0 open_web_calendar:app

If that works, could you adjust the docs or write what you would like to have read in the docs?

View full answer

niccokunzmann · 2024-10-12T16:09:34Z

niccokunzmann
Oct 12, 2024
Maintainer

Hi, I have opened an issue to make it easier to modify the default values #459 For now, the Python Package and docker have this problem: It is hard to modify.

When I read this:

http://127.0.0.1:8000

I would say you can only access this server from localhost. It should be more like 0.0.0.0:8000 in order to allow access from everywhere. I am wonder

Try:

gunicorn -b 0.0.0.0 open_web_calendar:app

If that works, could you adjust the docs or write what you would like to have read in the docs?

5 replies

niccokunzmann Oct 12, 2024
Maintainer

I also added this: #500

niccokunzmann Oct 12, 2024
Maintainer

I just added a bit of documentation for people to get started. I do not use this way of running the Open Web Calendar, so I do not know how to write the docs in the best way. Feel free to accept this as your section and write everything that people need to know to run it on a raspberry pi.

Sailor-Fhem Oct 12, 2024
Author

At least one step ahead
At least I get a different server message now:

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

werkzeug.exceptions.InternalServerError: 500 Internal Server Error: The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

The output of the shell is:


$ gunicorn -b 0.0.0.0 open_web_calendar:app
[2024-10-12 18:21:52 +0200] [120169] [INFO] Starting gunicorn 23.0.0
[2024-10-12 18:21:52 +0200] [120169] [INFO] Listening at: http://0.0.0.0:8000 (120169)
[2024-10-12 18:21:52 +0200] [120169] [INFO] Using worker: sync
[2024-10-12 18:21:52 +0200] [120170] [INFO] Booting worker with pid: 120170
[2024-10-12 18:21:58,321] ERROR in app: Exception on /calendar.html [GET]
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/dist-packages/flask/app.py", line 1473, in wsgi_app
    response = self.full_dispatch_request()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/flask/app.py", line 882, in full_dispatch_request
    rv = self.handle_user_exception(e)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/flask/app.py", line 880, in full_dispatch_request
    rv = self.dispatch_request()
         ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/flask/app.py", line 865, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)  # type: ignore[no-any-return]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/flask_allowed_hosts/allowed_hosts.py", line 51, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/open_web_calendar/app.py", line 233, in get_calendar
    specification = get_specification()
                    ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/open_web_calendar/app.py", line 174, in get_specification
    specification = get_default_specification()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/open_web_calendar/app.py", line 165, in get_default_specification
    spec = yaml.safe_load(file)
           ^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/__init__.py", line 125, in safe_load
    return load(stream, SafeLoader)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/__init__.py", line 81, in load
    return loader.get_single_data()
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/constructor.py", line 49, in get_single_data
    node = self.get_single_node()
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
               ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/composer.py", line 133, in compose_mapping_node
    item_value = self.compose_node(node, item_key)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/composer.py", line 82, in compose_node
    node = self.compose_sequence_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/parser.py", line 403, in parse_indentless_sequence_entry
    if self.check_token(BlockEntryToken):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/scanner.py", line 115, in check_token
    while self.need_more_tokens():
          ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/yaml/scanner.py", line 152, in need_more_tokens
    self.stale_possible_simple_keys()
  File "/usr/local/lib/python3.11/dist-packages/yaml/scanner.py", line 291, in stale_possible_simple_keys
    raise ScannerError("while scanning a simple key", key.mark,
yaml.scanner.ScannerError: while scanning a simple key
  in "/usr/local/lib/python3.11/dist-packages/open_web_calendar/default_specification.yml", line 211, column 1
could not find expected ':'
  in "/usr/local/lib/python3.11/dist-packages/open_web_calendar/default_specification.yml", line 213, column 1

niccokunzmann Oct 12, 2024
Maintainer

it looks like the specification file is not valid

Sailor-Fhem Oct 12, 2024
Author

BINGO!
"uninstall" followed by "install" solved the issue

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Configuring the Server #499

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