Add appservice-double-puppet double-puppeting support to beeper-linkedin

Shared Secret Auth double puppeting still works for this bridge, but
is deprecated and will go away in the future.

docs/configuring-playbook-bridge-beeper-linkedin.md

@@ -30,11 +30,13 @@ matrix_beeper_linkedin_configuration_extension_yaml: |
 You may wish to look at `roles/custom/matrix-bridge-beeper-linkedin/templates/config.yaml.j2` to find other things you would like to configure.
 
 
-## Set up Double Puppeting
+## Set up Double Puppeting by enabling Appservice Double Puppet or Shared Secret Auth
 
-If you'd like to use [Double Puppeting](https://docs.mau.fi/bridges/general/double-puppeting.html) (hint: you most likely do), you have to enable Shared Secred Auth.
+The bridge will automatically perform Double Puppeting if you enable the [Appservice Double Puppet](configuring-playbook-appservice-double-puppet.md) service or the [Shared Secret Auth](configuring-playbook-shared-secret-auth.md) service for this playbook.
 
-The bridge will automatically perform Double Puppeting if you enable [Shared Secret Auth](configuring-playbook-shared-secret-auth.md) for this playbook.
+Enabling [Appservice Double Puppet](configuring-playbook-appservice-double-puppet.md) is the recommended way of setting up Double Puppeting, as it's easier to accomplish, works for all your users automatically, and has less of a chance of breaking in the future.
+
+Enabling double puppeting by enabling the [Shared Secret Auth](configuring-playbook-shared-secret-auth.md) service works at the time of writing, but is deprecated and will stop working in the future.
 
 
 ## Usage

group_vars/matrix_servers

@@ -902,7 +902,16 @@ matrix_beeper_linkedin_appservice_token: "{{ '%s' | format(matrix_homeserver_gen
 matrix_beeper_linkedin_homeserver_address: "{{ matrix_addons_homeserver_client_api_url }}"
 matrix_beeper_linkedin_homeserver_token: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'linked.hs.token', rounds=655555) | to_uuid }}"
 
-matrix_beeper_linkedin_login_shared_secret: "{{ matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret if matrix_synapse_ext_password_provider_shared_secret_auth_enabled else '' }}"
+matrix_beeper_linkedin_login_shared_secret: |-
+  {{
+    ("as_token:" + matrix_appservice_double_puppet_registration_as_token)
+    if matrix_appservice_double_puppet_enabled
+    else (
+      matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret if matrix_synapse_ext_password_provider_shared_secret_auth_enabled
+      if matrix_synapse_ext_password_provider_shared_secret_auth_enabled
+      else ""
+    )
+  }}
 
 matrix_beeper_linkedin_bridge_presence: "{{ matrix_synapse_presence_enabled if matrix_synapse_enabled else true }}"
 

roles/custom/matrix-bridge-beeper-linkedin/defaults/main.yml

@@ -88,7 +88,7 @@ matrix_beeper_linkedin_appservice_database_uri: "{{
 }}"
 
 
-# Can be set to enable automatic double-puppeting via Shared Secret Auth (https://github.com/devture/matrix-synapse-shared-secret-auth).
+# Can be set to enable automatic double-puppeting via Shared Secret Auth (https://github.com/devture/matrix-synapse-shared-secret-auth) or Appservice Double Puppet.
 matrix_beeper_linkedin_login_shared_secret: ''
 
 # Specifies the default log level for all bridge loggers.