Hello Mike, thanks for that. I started trying out that route. I figured out I probably also need an html template, a controller, probably additions to manifest, but cannot get the field to be displayed yet, and also don´t see any errors in the browsers console I can attribute to that. I enabled debug logging in guacamole container. I can tell that my module.js (referenced from manifest) is included and executes, but I cannot find my config, controller and template within the network trace. Should they be included in manifest (totp doesn´t)?
Any tip what to watch out for? Is there any debug support for the browser parts? Thanks, Joachim Von: Michael Jumper <mjum...@apache.org> Gesendet: Mittwoch, 7. Dezember 2022 06:08 An: user@guacamole.apache.org Betreff: Re: Additional field (select options) on login screen? There isn't currently any specific documentation on registering custom field types, but there are some examples in the source that might be instructive. You don't need to modify the guacamole-client source - there is a system built-in intended for custom field types. You can do this purely with an extension. Take a look at the TOTP extension, which uses a fairly involved custom field type for the enrollment process: https://github.com/apache/guacamole-client/blob/master/extensions/guacamole -auth-totp/src/main/java/org/apache/guacamole/auth/totp/form/AuthenticationC odeField.java (Java definition) https://github.com/apache/guacamole-client/blob/master/extensions/guacamole -auth-totp/src/main/resources/config/totpConfig.js (JavaScript registration of the type) https://github.com/apache/guacamole-client/blob/master/extensions/guacamole -auth-totp/src/main/resources/totpModule.js (JavaScript registration of the AngularJS module handling the custom field registration) The Java field will be automatically serialized into JSON, included in the auth response, and then processed and passed to your custom field when received by the browser. The Duo extension also leverages custom fields for similar purposes. - Mike On Mon, Dec 5, 2022, 10:23 PM Joachim Lindenberg <guacam...@lindenberg.one <mailto:guacam...@lindenberg.one> > wrote: Hello Mike, is there any documentation or example on how to add a custom field type? I assume this would require to clone or contribute to guacamole-client? Thanks, Joachim Von: Michael Jumper < <mailto:mjum...@apache.org> mjum...@apache.org> Gesendet: Dienstag, 6. Dezember 2022 00:42 An: <mailto:user@guacamole.apache.org> user@guacamole.apache.org Betreff: Re: Additional field (select options) on login screen? On Mon, Dec 5, 2022 at 3:01 PM Joachim Lindenberg <guacam...@lindenberg.one <mailto:guacam...@lindenberg.one> > wrote: Hello Mike, I modified my code to show an addition filed using that exception, however the result is not exactly what I was looking for. With code like… static final String backupserver = "backup-server-to-connect-to"; private static Field BACKUPSERVER = null; private static CredentialsInfo SERVER_USERNAME_PASSWORD = null; … if (BACKUPSERVER == null) BACKUPSERVER = new EnumField(backupserver, getBackupServerCollection()); if (SERVER_USERNAME_PASSWORD == null) SERVER_USERNAME_PASSWORD = new CredentialsInfo(Arrays.asList( BACKUPSERVER, CredentialsInfo.USERNAME, CredentialsInfo.PASSWORD )); throw new GuacamoleInsufficientCredentialsException ("server, user & password required", SERVER_USERNAME_PASSWORD); … I get a drop down with the content LOGIN.FIELD_OPTION_BACKUP_SERVER_TO_CONNECT_TO_BACKUP2_LINDENBERG_ONE in the UI. Looks like the client application takes my field name and values, concatenates them, and probably also tries to translate them, whereas I want to use the Values in EnumField as provided. How can I achieve that? You cannot do this with EnumField. All of the standard field types included with Guacamole that allow you to specify possible values will expect translation strings for each of those possible values. You would have to define your own custom field type if you cannot provide translation strings for the possible values ahead of time. Is there some other UI element more appropriate? Also while the exception provides an easy way to define fields, the Credentials type does not reflect that. I figured out I have to use something like credentials.getRequest().getParameter(backupserver)) correct? Yes, convenience functions are provided only for username and password. You need to use the generic getParameter() for anything more specialized. - Mike
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