Decrease plugin key value store table index name size (#7910)

i18n/en.json

@@ -4248,11 +4248,11 @@
   },
   {
     "id": "model.plugin_key_value.is_valid.plugin_id.app_error",
-    "translation": "Invalid plugin ID"
+    "translation": "Invalid plugin ID, must be more than {{.Min}} and a of maximum {{.Max}} characters long."
   },
   {
     "id": "model.plugin_key_value.is_valid.key.app_error",
-    "translation": "Invalid key"
+    "translation": "Invalid key, must be more than {{.Min}} and a of maximum {{.Max}} characters long."
   },
   {
     "id": "model.access.is_valid.access_token.app_error",

model/plugin_key_value.go

@@ -5,6 +5,12 @@ package model
 
 import (
 	"net/http"
+	"unicode/utf8"
+)
+
+const (
+	KEY_VALUE_PLUGIN_ID_MAX_RUNES = 100
+	KEY_VALUE_KEY_MAX_RUNES       = 100
 )
 
 type PluginKeyValue struct {
@@ -14,12 +20,12 @@ type PluginKeyValue struct {
 }
 
 func (kv *PluginKeyValue) IsValid() *AppError {
-	if len(kv.PluginId) == 0 {
-		return NewAppError("PluginKeyValue.IsValid", "model.plugin_key_value.is_valid.plugin_id.app_error", nil, "key="+kv.Key, http.StatusBadRequest)
+	if len(kv.PluginId) == 0 || utf8.RuneCountInString(kv.PluginId) > KEY_VALUE_PLUGIN_ID_MAX_RUNES {
+		return NewAppError("PluginKeyValue.IsValid", "model.plugin_key_value.is_valid.plugin_id.app_error", map[string]interface{}{"Max": KEY_VALUE_KEY_MAX_RUNES, "Min": 0}, "key="+kv.Key, http.StatusBadRequest)
 	}
 
-	if len(kv.Key) == 0 {
-		return NewAppError("PluginKeyValue.IsValid", "model.plugin_key_value.is_valid.key.app_error", nil, "key="+kv.Key, http.StatusBadRequest)
+	if len(kv.Key) == 0 || utf8.RuneCountInString(kv.Key) > KEY_VALUE_KEY_MAX_RUNES {
+		return NewAppError("PluginKeyValue.IsValid", "model.plugin_key_value.is_valid.key.app_error", map[string]interface{}{"Max": KEY_VALUE_KEY_MAX_RUNES, "Min": 0}, "key="+kv.Key, http.StatusBadRequest)
 	}
 
 	return nil

store/sqlstore/plugin_store.go

@@ -21,6 +21,8 @@ func NewSqlPluginStore(sqlStore SqlStore) store.PluginStore {
 
 	for _, db := range sqlStore.GetAllConns() {
 		table := db.AddTableWithName(model.PluginKeyValue{}, "PluginKeyValueStore").SetKeys(false, "PluginId", "Key")
+		table.ColMap("PluginId").SetMaxSize(100)
+		table.ColMap("Key").SetMaxSize(100)
 		table.ColMap("Value").SetMaxSize(8192)
 	}