Module specific configuration

Tigase will try to start a standalone Jetty HTTP server at port 8080 and start up the default modules, including RestModule which will add context for REST API in the /rest path. RestModule will also load all groovy scripts located in scripts/rest/* directories and will bind them to proper actions for the /rest/* paths.

NOTE: Scripts that handle HTTP requests are available in the component repository in src/scriopts/groovy/tigase/rest/ directory.

Tigase’s REST Component comes with two modules that can be enabled, disabled, and configured separately. Common settings for modules for component properties are used in the following format: component_name (module: value) {} the following settings are available for both listed modules:

Rest Module

This is the Module that provides support for the REST API. Available properties:

  • rest-scripts-dir - Provides ability to specify path to scripts processing REST requests if you do not wish to use default (scripts/rest).

API keys

In previous version it was possible to configure api-keys for REST module using entries within configuration file. In the recent version we decided to remove this configuration option. Now, by default Tigase XMPP Server requires API key to be passed to all requests and you need to configure them before you will be able to use REST API.

Instead, you should use ad-hocs available on the REST module JID to:

  • Add API key (api-key-add)
  • Update API key (api-key-update)
  • Remove API key (api-key-remove);

Tip

If you have Admin UI enabled, you may log in using admin credentials to this UI and when you select CONFIGURATION section on the left sidebar, it will expand and allow you to execute any of those ad-hoc commands mentioned above.

Requests made to the HTTP service must conclude with one of the API keys defined using ad-hoc commands: http://localhost:8080/rest/adhoc/sess-man@domain.com?api-key=test1

Note

If you want to allow access to REST API without usage of any keys, it is possible. To do so, you need to add an API key with API key field value equal open_access.

DNS Web Service module

For web based XMPP clients it is not possible to execute DNS SRV requests to find address of XMPP server hosting for particular domain. To solve this the DNS Web Service module was created.

It handles incoming HTTP GET request and using passed domain and callback HTTP parameters executes DNS requests as specified in XEP-0156: Discovering Alternative XMPP Connection Methods. Results are returned in JSON format for easy processing by web based XMPP client.

By default it is deployed at dns-webservice

Parameters

domain
Domain name to look for XMPP SRV client records.
callback
Due to security reasons web based client may not be able to access some DNS Web Service due to cross-domain AJAX requests. Passing optional callback parameter sets name of callback for JSONP requests and results proper response in JSONP format.

Discover way to connect to XMPP server

Using host-meta

You should access endpoint available at /dns-webservice/.well-known/host-meta.

To make it follow specification you should configure a redirection from the root path of your http server to above path. For example, using nginx:

location  /.well-known/ {
    proxy_pass http://localhost:8080/dns-webservice/.well-known/;
    proxy_set_header Host $host;
}
Query particular domain.

If we want to know connectivity options for sure.im we should send HTTP GET request to http://our-xmpp-server:8080/dns-webservice/?domain=sure.im&version=2. We will receive following response:

{
  domain: 'sure.im',
  c2s: [
    {
      host: 'tigase.me',
      ip: ['198.100.157.101','198.100.157.103','198.100.153.203'],
      port: 5222,
      priority: 5
    }
  ],
  bosh: [
    {url:'http://blue.sure.im:5280/bosh'},
    {url:'http://green.sure.im:5280/bosh'},
    {url:'http://orange.sure.im:5280/bosh'}
  ],
  websocket: [
    {url:'ws://blue.sure.im:5290/'},
    {url:'ws://green.sure.im:5290/'},
    {url:'ws://orange.sure.im:5290/'}
  ]
}

As you can see in here we have names and IP address of XMPP servers hosting sure.im domain as well as list of URI for establishing connections using BOSH or WebSocket.

This module is activated by default. However, if you are operating in a test environment where you may not have SRV and A records setup to the domain you are using, you may want to disable this in your config.tdsl file with the following line:

rest {
    'dns-webservice' (active: false) {}
}

Enabling password reset mechanism

It is possible to provide users with a mechanism for a password change in case if they forgot their password to the XMPP account. To do that you need to have tigase-extras.jar in your classpath (it is part of -dist-max distribution package), enable mailer and account-email-password-resetter.

Example configuration. 

account-email-password-resetter () {}
mailer (class: tigase.extras.mailer.Mailer) {
    'mailer-from-address' = 'email-address@to-send-emails-from'
    'mailer-smtp-host' = 'smtp.email.server.com'
    'mailer-smtp-password' = 'password-for-email-account'
    'mailer-smtp-port' = '587' # Email server SMTP port
    'mailer-smtp-username' = 'username-for-email-account'
}

Note

You need to replace example configuration parameters with correct ones.

With this configuration in place and after restart of Tigase XMPP Server at url http://localhost:8080/rest/user/resetPassword will be available web form which may be used for password reset.

Note

This mechanism will only work if user provided real email address during account registration and if user still remembers and has access to email address used during registration.