Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/channels/app/plugin_key_value_store.go

@@ -0,0 +1,125 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package app
+
+import (
+	"crypto/sha256"
+	"encoding/base64"
+	"errors"
+	"net/http"
+
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/server/channels/store"
+	"github.com/mattermost/mattermost-server/v6/server/platform/shared/mlog"
+)
+
+func getKeyHash(key string) string {
+	hash := sha256.New()
+	hash.Write([]byte(key))
+	return base64.StdEncoding.EncodeToString(hash.Sum(nil))
+}
+
+func (a *App) SetPluginKey(pluginID string, key string, value []byte) *model.AppError {
+	return a.SetPluginKeyWithExpiry(pluginID, key, value, 0)
+}
+
+func (a *App) SetPluginKeyWithExpiry(pluginID string, key string, value []byte, expireInSeconds int64) *model.AppError {
+	options := model.PluginKVSetOptions{
+		ExpireInSeconds: expireInSeconds,
+	}
+	_, err := a.SetPluginKeyWithOptions(pluginID, key, value, options)
+	return err
+}
+
+func (a *App) CompareAndSetPluginKey(pluginID string, key string, oldValue, newValue []byte) (bool, *model.AppError) {
+	options := model.PluginKVSetOptions{
+		Atomic:   true,
+		OldValue: oldValue,
+	}
+	return a.SetPluginKeyWithOptions(pluginID, key, newValue, options)
+}
+
+func (a *App) SetPluginKeyWithOptions(pluginID string, key string, value []byte, options model.PluginKVSetOptions) (bool, *model.AppError) {
+	return a.Srv().Platform().SetPluginKeyWithOptions(pluginID, key, value, options)
+}
+
+func (a *App) CompareAndDeletePluginKey(pluginID string, key string, oldValue []byte) (bool, *model.AppError) {
+	kv := &model.PluginKeyValue{
+		PluginId: pluginID,
+		Key:      key,
+	}
+
+	deleted, err := a.Srv().Store().Plugin().CompareAndDelete(kv, oldValue)
+	if err != nil {
+		mlog.Error("Failed to compare and delete plugin key value", mlog.String("plugin_id", pluginID), mlog.String("key", key), mlog.Err(err))
+		var appErr *model.AppError
+		switch {
+		case errors.As(err, &appErr):
+			return deleted, appErr
+		default:
+			return false, model.NewAppError("CompareAndDeletePluginKey", "app.plugin_store.delete.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+		}
+	}
+
+	// Clean up a previous entry using the hashed key, if it exists.
+	if err := a.Srv().Store().Plugin().Delete(pluginID, getKeyHash(key)); err != nil {
+		mlog.Warn("Failed to clean up previously hashed plugin key value", mlog.String("plugin_id", pluginID), mlog.String("key", key), mlog.Err(err))
+	}
+
+	return deleted, nil
+}
+
+// TODO: platform: remove
+func (s *Server) getPluginKey(pluginID string, key string) ([]byte, *model.AppError) {
+	if kv, err := s.Store().Plugin().Get(pluginID, key); err == nil {
+		return kv.Value, nil
+	} else if nfErr := new(store.ErrNotFound); !errors.As(err, &nfErr) {
+		mlog.Error("Failed to query plugin key value", mlog.String("plugin_id", pluginID), mlog.String("key", key), mlog.Err(err))
+		return nil, model.NewAppError("GetPluginKey", "app.plugin_store.get.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+	}
+
+	// Lookup using the hashed version of the key for keys written prior to v5.6.
+	if kv, err := s.Store().Plugin().Get(pluginID, getKeyHash(key)); err == nil {
+		return kv.Value, nil
+	} else if nfErr := new(store.ErrNotFound); !errors.As(err, &nfErr) {
+		mlog.Error("Failed to query plugin key value using hashed key", mlog.String("plugin_id", pluginID), mlog.String("key", key), mlog.Err(err))
+		return nil, model.NewAppError("GetPluginKey", "app.plugin_store.get.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+	}
+
+	return nil, nil
+}
+
+func (a *App) GetPluginKey(pluginID string, key string) ([]byte, *model.AppError) {
+	return a.Srv().getPluginKey(pluginID, key)
+}
+
+func (a *App) DeletePluginKey(pluginID string, key string) *model.AppError {
+	return a.Srv().Platform().DeletePluginKey(pluginID, key)
+}
+
+func (a *App) DeleteAllKeysForPlugin(pluginID string) *model.AppError {
+	if err := a.Srv().Store().Plugin().DeleteAllForPlugin(pluginID); err != nil {
+		mlog.Error("Failed to delete all plugin key values", mlog.String("plugin_id", pluginID), mlog.Err(err))
+		return model.NewAppError("DeleteAllKeysForPlugin", "app.plugin_store.delete.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+	}
+
+	return nil
+}
+
+func (a *App) DeleteAllExpiredPluginKeys() *model.AppError {
+	if a.Srv() == nil {
+		return nil
+	}
+
+	if err := a.Srv().Store().Plugin().DeleteAllExpired(); err != nil {
+		mlog.Error("Failed to delete all expired plugin key values", mlog.Err(err))
+		return model.NewAppError("DeleteAllExpiredPluginKeys", "app.plugin_store.delete.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+	}
+
+	return nil
+}
+
+func (a *App) ListPluginKeys(pluginID string, page, perPage int) ([]string, *model.AppError) {
+	return a.Srv().Platform().ListPluginKeys(pluginID, page, perPage)
+}