Plugin Manager plugin for Linkurious Enterprise

This plugin allows to easily handle plugins in Linkurious Enterprise.

Table of contents

• Compatibility
• Configurations
• URL Parameters
• User Manual
  • Status tab
  • Manage Plugins tab
    • Install a new plugin
  • Recycle Bin tab
• Custom APIs
  • Get plugins
  • Get Plugin Manager manifest
  • Get generic plugin manifest
  • Get enabled plugin manifest
  • Install an official plugin
  • Upload a plugin
  • Disable a plugin
  • Enable a plugin
  • Remove a plugin
  • Restore a plugin
  • Purge
  • Stream plugin logs
• Limitations
• Licensing

Compatibility

This plugin is compatible with Linkurious Enterprise starting from v3.1. However, some features may be limited on versions older than v4.0.

Configurations

This plugin supports the following custom configurations:

Key	Type	Description	Example
maxUploadSizeMb	number (optional)	The maximum allowed size (in Megabytes) when uploading a plugin from the web interface. For security reasons, by defaults it is limited to 20MB.	20

URL Parameters

The plugin can be accessed from its home page without the need to specify any URL parameter.

User Manual

The purpose of the plugin is to facilitate the management of individual Linkurious Enterprise plugins by allowing them to perform a set of actions: these actions will be explained more specifically in the next sections.

With a default configuration, it is possible to access the plugin under the /plugins/plugin-manager path (e.g. http://127.0.0.1:3000/plugins/plugin-manager).

Access to the plugin is allowed only to users who are part of the admin group (please, refer to this page for more information on Linkurious Enterprise access control).

The plugin consists of 3 main tabs:

• Status
• Manage Plugins
• Recycle Bin

Status tab

This is the tab listing all the currently deployed plugins in the Linkurious Enterprise instance.

The following information is available for each deployed plugin:

• Plugin Name: the name of the plugin as defined by developers;
• Version: the version of the plugin;
• Plugin Instance: the endpoint to which the plugin is available; clicking on it provides quick access to the plugin;
• State: describes the current state of the plugin, in case of errors any additional information will be shown when hovering with the mouse;
• Logs: a button to provide quick access to the plugin logs in a new browser tab.

NOTE: the same plugin (identifiable by the Plugin Name) can be deployed multiple times: each deployment will have a different Plugin Instance and the same version. It is not possible to have multiple versions of the same plugin running at the same time. For all information, please refer to this page of the Linkurious Enterprise documentation

A RESTART button is also present in this tab. By clicking on it, all the plugins (including the Plugin Manager itself) will be restarted. As a result, plugins will be temporarily unavailable: please, do not refresh the page during the plugins restart operation.

Manage Plugins tab

This is the tab listing all the available plugins in the Linkurious Enterprise instance.

The following information is available for each available plugin:

• Package: the name of the plugin archive;
• Plugin Name: the name of the plugin as defined by developers;
• Version: the version of the plugin;
• State: describes if the plugin is enabled or not;
• Manage: the managing panel for the plugin. For each available plugin (except for the Plugin Manager itself), an admin can:
  • Enable/Disable the plugin: the state of the plugin will be switched from ENABLED to DISABLED or vice-versa. A DISABLED plugin is not deployed at the next plugins restart;
  • Remove the plugin: the plugin will be moved to the Recycle Bin and not deployed at the next plugins restart (see the next section for more details); it's not possible to remove a DISABLED plugin, you should activate it first.

A RESTART button is also present in this tab. By clicking on it, all the plugins (including the Plugin Manager itself) will be restarted. As a result, plugins will be temporarily unavailable: please, do not refresh the page during the plugins restart operation.

Install a new plugin

In the same tab, admins can install new plugins: by clicking on the ADD button, the plugin installation form will be displayed.

Here, admins can:

• select one of the Linkurious Enterprise official plugins;
• upload a valid plugin package: a standard naming convention will be used for the package; it includes the plugin name and its version as they are defined in the plugin manifest.

By clicking on the Install button, the selected plugin will be installed and set as ENABLED.

NOTE: after installing a new plugin, you need to click the RESTART button to deploy it. Also, check on the plugin documentation for eventual mandatory (or optional) configurations required to correctly use the plugin.

Recycle Bin tab

This is the tab listing all the removed plugins in the Linkurious Enterprise instance.

Plugins can be removed manually by an admin (by clicking its Remove button in the Manage Plugins tab) or automatically by the Plugin Manager (in case a plugin with the same name as another ENABLED plugin is installed: the Plugin Manager will remove the currently ENABLED plugin and replace it with the newly installed).

The following information is available for each removed plugin:

• Package: the name of the plugin archive;
• Plugin Name: the name of the plugin as defined by developers;
• Version: the version of the plugin;
• Manage: the managing panel for the removed plugin. For each available plugin, an admin can restore a plugin by clicking on its RESTORE button: the plugin will be available in the Manage Plugins tab.

An EMPTY BIN button is also present in this tab. By clicking on it, all the removed plugins will be permanently deleted from the recycle bin.

Custom APIs

The Plugin Manager also provides a set of custom APIs for managing plugins.

As well as for use via the user interface, use of these APIs is restricted to users who are members of the admin group.

NOTE: These APIs must use the Plugin Manager basePath as endpoint

(e.g. to call the /api/plugins API, you should use an URL like http://127.0.0.1:3000/plugins/plugin-manager/api/plugins)

Get plugins

Get the list of plugins

Type: GET

/api/plugins

Parameters

Field	Type	Description
filter optional	string	The category of plugins to be retrieved. Allowed values: available, deployed, enabled (default), disabled, recyclebin

Success 200

Field	Type	Description
<fileName>	manifest	The <fileName> is a dynamically generated string representing the package name for each plugin matching the filter criteria

---

Get Plugin Manager manifest

Get the manifest of this plugin

Type: GET

/api/manifest

Success 200

Field	Type	Description
n/a	manifest	The whole response represents a manifest object

---

Get generic plugin manifest

Extract the manifest from a plugin (uploaded through the body)

Type: POST

/api/manifest

Parameters

Field	Type	Description
plugin	HTTP file upload	The file containing the plugin to be parsed

Success 200

Field	Type	Description
n/a	manifest	The whole response represents a manifest object

---

Get enabled plugin manifest

Get the manifest of an enabled plugin

Type: GET

/api/plugin/:fileName

Parameters

Field	Type	Description
fileName	string	The name of the plugin package

Success 200

Field	Type	Description
n/a	manifest	The whole response represents a manifest object

---

Install an official plugin

Install a Linkurious Enterprise official plugin from the available folder of the software build

Type: POST

/api/install-available/:pluginName

Parameters

Field	Type	Description
pluginName	string	The name of the plugin

Success 200

Field	Type	Description
status	string	The result of the operation Possible values: ok
attribute	string	The identifier for the returned value Possible values: fileName
attributeValue	string	The package name generated by the system

---

Upload a plugin

Upload and enable a Linkurious Enterprise plugin

Type: POST

/api/upload

Parameters

Field	Type	Description
plugin	HTTP file upload	The file containing the plugin to be installed

Success 200

Field	Type	Description
status	string	The result of the operation Possible values: ok
attribute	string	The identifier for the returned value Possible values: fileName
attributeValue	string	The package name generated by the system

---

Disable a plugin

Disable an enabled plugin

Type: PATCH

/api/plugin/:fileName/disable

Parameters

Field	Type	Description
fileName	string	The name of the plugin package

Success

HTTP/1.1 204 No Content

---

Enable a plugin

Enable a disabled Plugin

Type: PATCH

/api/plugin/:fileName/enable

Parameters

Field	Type	Description
fileName	string	The name of the plugin package

Success

HTTP/1.1 204 No Content

---

Remove a plugin

Move an enabled plugin to the recycle bin

Type: DELETE

/api/plugin/:fileName

Parameters

Field	Type	Description
fileName	string	The name of the plugin package

Success

HTTP/1.1 204 No Content

---

Restore a plugin

Restore a plugin from the recycle bin

Type: PATCH

/api/plugin/:fileName/restore

Parameters

Field	Type	Description
fileName	string	The name of the plugin package

Success

HTTP/1.1 204 No Content

---

Purge

Purge a specific folder

Type: DELETE

/api/purge

Parameters

Field	Type	Description
filter	string	The folder to purge. Allowed values: disabled, recyclebin

Success

HTTP/1.1 204 No Content

---

Stream plugin logs

Stream the logs of a plugin instance

Type: GET

/api/logs/:pluginInstance

Parameters

Field	Type	Description
pluginInstance	string	The instance name of the plugin

Success 200

It returns a text stream with the latest logs of the plugin.

Limitations

• For safety reasons, this plugin does not allow to operate on itself to avoid compromising the availability of the plugin in case of errors with a newer version.
• This plugin allows to install the version of the official plugins shipped within Linkurious Enterprise package. To install a newer version, you should update your Linkurious Enterprise or manually upload the new file.

Licensing

The Plugin Manager is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.