838c6f90b7
* initial commit for setting shared board configuration * add unit test * working again * update default config * initial commit for setting shared board configuration * add unit test * working again * update default config * add unit tests, some clean up * more cleanup * more clean up * remove header text for GH-1105 * remove unnecessary logs * update text * fix lint errors * more lint fixes * webapp lint fixes * Update mattermost-plugin/plugin.json Co-authored-by: Justine Geffen <justinegeffen@users.noreply.github.com> * Update mattermost-plugin/plugin.json Co-authored-by: Justine Geffen <justinegeffen@users.noreply.github.com> * update for review, sync with main Co-authored-by: Justine Geffen <justinegeffen@users.noreply.github.com>
91 lines
3.3 KiB
Go
91 lines
3.3 KiB
Go
package main
|
|
|
|
import (
|
|
"reflect"
|
|
|
|
"github.com/mattermost/focalboard/server/utils"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
// configuration captures the plugin's external configuration as exposed in the Mattermost server
|
|
// configuration, as well as values computed from the configuration. Any public fields will be
|
|
// deserialized from the Mattermost server configuration in OnConfigurationChange.
|
|
//
|
|
// As plugins are inherently concurrent (hooks being called asynchronously), and the plugin
|
|
// configuration can change at any time, access to the configuration must be synchronized. The
|
|
// strategy used in this plugin is to guard a pointer to the configuration, and clone the entire
|
|
// struct whenever it changes. You may replace this with whatever strategy you choose.
|
|
//
|
|
// If you add non-reference types to your configuration struct, be sure to rewrite Clone as a deep
|
|
// copy appropriate for your types.
|
|
type configuration struct {
|
|
EnablePublicSharedBoards bool
|
|
}
|
|
|
|
// Clone shallow copies the configuration. Your implementation may require a deep copy if
|
|
// your configuration has reference types.
|
|
func (c *configuration) Clone() *configuration {
|
|
var clone = *c
|
|
return &clone
|
|
}
|
|
|
|
// getConfiguration retrieves the active configuration under lock, making it safe to use
|
|
// concurrently. The active configuration may change underneath the client of this method, but
|
|
// the struct returned by this API call is considered immutable.
|
|
func (p *Plugin) getConfiguration() *configuration {
|
|
p.configurationLock.RLock()
|
|
defer p.configurationLock.RUnlock()
|
|
|
|
if p.configuration == nil {
|
|
return &configuration{}
|
|
}
|
|
|
|
return p.configuration
|
|
}
|
|
|
|
// setConfiguration replaces the active configuration under lock.
|
|
//
|
|
// Do not call setConfiguration while holding the configurationLock, as sync.Mutex is not
|
|
// reentrant. In particular, avoid using the plugin API entirely, as this may in turn trigger a
|
|
// hook back into the plugin. If that hook attempts to acquire this lock, a deadlock may occur.
|
|
//
|
|
// This method panics if setConfiguration is called with the existing configuration. This almost
|
|
// certainly means that the configuration was modified without being cloned and may result in
|
|
// an unsafe access.
|
|
func (p *Plugin) setConfiguration(configuration *configuration) {
|
|
p.configurationLock.Lock()
|
|
defer p.configurationLock.Unlock()
|
|
|
|
if configuration != nil && p.configuration == configuration {
|
|
// Ignore assignment if the configuration struct is empty. Go will optimize the
|
|
// allocation for same to point at the same memory address, breaking the check
|
|
// above.
|
|
if reflect.ValueOf(*configuration).NumField() == 0 {
|
|
return
|
|
}
|
|
|
|
panic("setConfiguration called with the existing configuration")
|
|
}
|
|
|
|
p.configuration = configuration
|
|
}
|
|
|
|
// OnConfigurationChange is invoked when configuration changes may have been made.
|
|
func (p *Plugin) OnConfigurationChange() error {
|
|
// Have we been setup by OnActivate?
|
|
if p.wsPluginAdapter == nil {
|
|
return nil
|
|
}
|
|
|
|
configuration := &configuration{}
|
|
// Load the public configuration fields from the Mattermost server configuration.
|
|
if err := p.API.LoadPluginConfiguration(&configuration); err != nil {
|
|
return errors.Wrap(err, "failed to load plugin configuration")
|
|
}
|
|
|
|
p.setConfiguration(configuration)
|
|
p.server.UpdateClientConfig(utils.StructToMap(configuration))
|
|
p.wsPluginAdapter.BroadcastConfigChange(*p.server.App().GetClientConfig())
|
|
|
|
return nil
|
|
}
|