Adding the ability to disable full text search queries for master (#6102)

config/config.json

@@ -41,6 +41,7 @@
         "AllowEditPost": "always",
         "PostEditTimeLimit": 300,
         "TimeBetweenUserTypingUpdatesMilliseconds": 5000,
+        "EnablePostSearch": true,
         "EnableUserTypingMessages": true,
         "ClusterLogTimeoutMilliseconds": 2000
     },

i18n/en.json

@@ -5203,6 +5203,10 @@
     "id": "store.sql_post.search.warn",
     "translation": "Query error searching posts: %v"
   },
+  {
+    "id": "store.sql_post.search.disabled",
+    "translation": "Searching has been disabled on this server. Please contact your System Administrator."
+  },
   {
     "id": "store.sql_post.update.app_error",
     "translation": "We couldn't update the Post"

model/config.go

@@ -151,6 +151,7 @@ type ServiceSettings struct {
 	AllowEditPost                            *string
 	PostEditTimeLimit                        *int
 	TimeBetweenUserTypingUpdatesMilliseconds *int64
+	EnablePostSearch                         *bool
 	EnableUserTypingMessages                 *bool
 	ClusterLogTimeoutMilliseconds            *int
 }
@@ -1148,6 +1149,11 @@ func (o *Config) SetDefaults() {
 		*o.ServiceSettings.TimeBetweenUserTypingUpdatesMilliseconds = 5000
 	}
 
+	if o.ServiceSettings.EnablePostSearch == nil {
+		o.ServiceSettings.EnablePostSearch = new(bool)
+		*o.ServiceSettings.EnablePostSearch = true
+	}
+
 	if o.ServiceSettings.EnableUserTypingMessages == nil {
 		o.ServiceSettings.EnableUserTypingMessages = new(bool)
 		*o.ServiceSettings.EnableUserTypingMessages = true

model/search_params.go

@@ -4,6 +4,7 @@
 package model
 
 import (
+	"encoding/json"
 	"regexp"
 	"strings"
 )
@@ -19,6 +20,15 @@ type SearchParams struct {
 	OrTerms    bool
 }
 
+func (o *SearchParams) ToJson() string {
+	b, err := json.Marshal(o)
+	if err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
 var searchFlags = [...]string{"from", "channel", "in"}
 
 func splitWordsNoQuotes(text string) []string {

store/sql_post_store.go

@@ -908,6 +908,17 @@ func (s SqlPostStore) Search(teamId string, userId string, params *model.SearchP
 	go func() {
 		result := StoreResult{}
 
+		if !*utils.Cfg.ServiceSettings.EnablePostSearch {
+			list := &model.PostList{}
+			list.MakeNonNil()
+			result.Data = list
+
+			result.Err = model.NewLocAppError("SqlPostStore.Search", "store.sql_post.search.disabled", nil, fmt.Sprintf("teamId=%v userId=%v params=%v", teamId, userId, params.ToJson()))
+			storeChannel <- result
+			close(storeChannel)
+			return
+		}
+
 		queryParams := map[string]interface{}{
 			"TeamId": teamId,
 			"UserId": userId,
@@ -919,6 +930,7 @@ func (s SqlPostStore) Search(teamId string, userId string, params *model.SearchP
 		if terms == "" && len(params.InChannels) == 0 && len(params.FromUsers) == 0 {
 			result.Data = []*model.Post{}
 			storeChannel <- result
+			close(storeChannel)
 			return
 		}