Generic oauth2 provider not working

[alexbog8]

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I am trying to implement a generic oauth2 authentification for CodiMD. I am using laravel with passport. Everything seems to be fine on the laravel side, I approve the request on laravel, but then I get a proxy error. I am using docker compose with the following variables

  - CMD_OAUTH2_BASEURL=http://www.example.org/
  - CMD_OAUTH2_USER_PROFILE_USERNAME_ATTR=https://www.evample.org/api/user/get
  - CMD_OAUTH2_USER_PROFILE_DISPLAY_NAME_ATTR=https://www.example.org/api/user/get2
  - CMD_OAUTH2_USER_PROFILE_EMAIL_ATTR=https://www.example.org/api/user/get3
  - CMD_OAUTH2_CLIENT_ID=x
  - CMD_OAUTH2_CLIENT_SECRET=xxxxxxxxxxxxxx
  - CMD_OAUTH2_PROVIDERNAME=some name
  - CMD_OAUTH2_AUTHORIZATION_URL=http://www.example.org/oauth/authorize
  - CMD_OAUTH2_TOKEN_URL=http://www.example.org/oauth/token
  - CMD_OAUTH2_SCOPE=  

on the codimd logs I see the following

2021-04-19T17:04:52.568Z error: uncaughtException: The "url" argument must be of type string. Received type undefined TypeError [ERR_INVALID_ARG_TYPE]: The "url" argument must be of type string. Received type undefined at Url.parse (url.js:154:11) at Object.urlParse [as parse] (url.js:148:13) at exports.OAuth2._request (/home/hackmd/app/node_modules/oauth/lib/oauth2.js:72:22) at exports.OAuth2.get (/home/hackmd/app/node_modules/oauth/lib/oauth2.js:227:8) at OAuth2CustomStrategy.userProfile (/home/hackmd/app/lib/auth/oauth2/strategy.js:54:18) at loadIt (/home/hackmd/app/node_modules/passport-oauth2/lib/strategy.js:345:17) at OAuth2CustomStrategy.OAuth2Strategy._loadUserProfile (/home/hackmd/app/node_modules/passport-oauth2/lib/strategy.js:360:25) at /home/hackmd/app/node_modules/passport-oauth2/lib/strategy.js:168:16 at /home/hackmd/app/node_modules/oauth/lib/oauth2.js:209:7 at passBackControl (/home/hackmd/app/node_modules/oauth/lib/oauth2.js:134:9) at IncomingMessage. (/home/hackmd/app/node_modules/oauth/lib/oauth2.js:157:7) at IncomingMessage.emit (events.js:203:15) at endReadableNT (_stream_readable.js:1145:12) at process._tickCallback (internal/process/next_tick.js:63:19)

The proxy between the host and the docker image is done as follows:

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RewriteEngine On RewriteCond %{HTTP:Upgrade} websocket [NC] RewriteCond %{HTTP:Connection} upgrade [NC] RewriteRule ^/?(.*) "ws://localhost:3000/$1" [P,L] ProxyPass / http://localhost:3000/ retry=5 timeout=600 Keepalive=On ProxyPassReverse / http://localhost:3000/

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Any thoughts? Thanks