Problems with calender and Nextcloud

[Pakmann]

@sdetweil
Great, Thanks for the instructions.

I try step one and obviously i get an error during loading calender content (Link to calender replaced):

Calendar Error. Could not fetch calendar:  CALENDER LINK { Error: write EPROTO 19413              98784:error:1409442E:SSL routines:ssl3_read_bytes:tlsv1 alert protocol version:../../vendor/node/deps/openssl/openssl/ssl/record/rec_layer_s3.c:1407:SSL alert n              umber 70

    at WriteWrap.afterWrite [as oncomplete] (net.js:833:14) errno: 'EPROTO', code: 'EPROTO', syscall: 'write' }

For Step 2 i have the problem to have only access with an putty terminal at the moment.

Any idea so far what the error message means ?

[sdetweil]

@Pakmann said in Problems with calender and Nextcloud:

version:…/…/vendor/node/deps/openssl/openssl/ssl/record/rec_layer_s3.c:1407:SSL

how did u configure the url in the config.js

http://
or
https://

[Pakmann]

My nextcloud server accept only https connections. I checked it with the config.js - it is https

[sdetweil]

@Pakmann try

wget -o  your nextcloud_url 

on the terminal window…

i think the calendar fetcher is having trouble negotiating the ssl (https) handshake…

[Pakmann]

@sdetweil said in Problems with calender and Nextcloud:

wget -O

Maybe it is to late on my side… The request told me i dont have an URL in the request…
Request like below.

wget -O https://www.google.de

[sdetweil]

@Pakmann

but I said

wget -o  your nextcloud_url 

whatever the https://… nextcloud thing is in config.js

[Pakmann]

yes, i try the complete URL for download die ICS file from nextcloud kalender. Include credentials inside the link:

 wget -O https://USER:PASSWORD@DOMAIN/remote.php/dav/calendars/USER/personal/?export
wget: URL fehlt
Aufruf: wget [OPTION]... [URL] …

[sdetweil]

@Pakmann just remove the -o parm

[Pakmann]

of course :-) i uses O (not zero)

[sdetweil]

@Pakmann just do wget nextcloud-url

[Pakmann]

looks like the direction to find the root cause is good.

Get following response:

GnuTLS: A TLS fatal alert has been received.
GnuTLS: received alert [70]: Error in protocol version

Now i remember, a few months ago i configure the nginx to TLS1.3. Maybe its not compatible with MM ?

[sdetweil]

@Pakmann wget is not MM, and it also fails

[Pakmann]

hmm… each other devices are running:

Phone, Tablet or try to download the ICS directly in a desktop browser. Should be sometink on the PI ?

[sdetweil]

@Pakmann where did u configure tls3? may have to do the same on pi

[Pakmann]

nextcloud is hostet on a separate pi. here the nginx is configured for TLS1.3

MM is on another PI.

[sdetweil]

@Pakmann so the nginx system is the gateway… all things must speak tls3…
so you now need to config MM pi to peak tls3

[Pakmann]

@sdetweil
Today i solved the problem regarding TLS1.3 connection. Wget is working fine and i can download the ICS data.
On MM side i have the same issue like before. No data is shown in calender. When i start the MM its still the same error message :-(

[sdetweil]

@Pakmann looks like you will have to add a parameter to the launcher to enable tls 1.3

https://developer.ibm.com/blogs/migrating-to-tls13-in-nodejs/

my adding this to the script starting MM (either mm.sh or run-start.sh)

Enable TLS1.3 using CLI options
With Node.js 11.x or 10.x, you can use the --tls-max-v1.3 CLI option to enable TLS1.3 by default. It can be provided directly on the command line, or set in the environment with NODE_OPTIONS=–tls-max-v1.3. The option can also be specified to Node.js 12.x, even though its already the default.

export NODE_OPTIONS=--tls-max-v1.3

[Pakmann]

@sdetweil
for a first try i set the option directly via termine and start MM. Same result like before - i got an error message for SSL.

pi@MagicMirror:~/MagicMirror $ NODE_OPTIONS=–tls-max-v1.3
pi@MagicMirror:~/MagicMirror $ npm start

Anythink wrong here ? Any idea how i can check if the option was accepted correctly?

On buster stable nodejs 10.17.0 is availble. But i found the binaries for v12. Obviously after an update i have other problems :D Therefore its better with v10 so far

[sdetweil]

@Pakmann said in Problems with calender and Nextcloud:

pi@MagicMirror:~/MagicMirror $ NODE_OPTIONS=–tls-max-v1.3

you must export the env variable, else it is not passed to children processes,
issue this command from the terminal window

export NODE_OPTIONS=--tls-max-v1.3