From c372ceebf87295408072a40c63df7c4be9bc2abc Mon Sep 17 00:00:00 2001
From: Carlos Tadeu Panato Junior <ctadeu@gmail.com>
Date: Mon, 13 Mar 2017 13:27:27 +0100
Subject: [APIV4] GET /config - getConfig endpoint for apiV4 (#5701)

---
 api4/system.go      | 15 +++++++++++++++
 api4/system_test.go | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
 model/client4.go    | 14 ++++++++++++++
 3 files changed, 78 insertions(+), 1 deletion(-)

diff --git a/api4/system.go b/api4/system.go
index 94f4718a2..4f86213c6 100644
--- a/api4/system.go
+++ b/api4/system.go
@@ -7,6 +7,8 @@ import (
 	"net/http"
 
 	l4g "github.com/alecthomas/log4go"
+	"github.com/mattermost/platform/app"
+	"github.com/mattermost/platform/model"
 	"github.com/mattermost/platform/utils"
 )
 
@@ -14,8 +16,21 @@ func InitSystem() {
 	l4g.Debug(utils.T("api.system.init.debug"))
 
 	BaseRoutes.System.Handle("/ping", ApiHandler(getSystemPing)).Methods("GET")
+	BaseRoutes.ApiRoot.Handle("/config", ApiSessionRequired(getConfig)).Methods("GET")
 }
 
 func getSystemPing(c *Context, w http.ResponseWriter, r *http.Request) {
 	ReturnStatusOK(w)
 }
+
+func getConfig(c *Context, w http.ResponseWriter, r *http.Request) {
+	if !app.SessionHasPermissionTo(c.Session, model.PERMISSION_MANAGE_SYSTEM) {
+		c.SetPermissionError(model.PERMISSION_MANAGE_SYSTEM)
+		return
+	}
+
+	cfg := app.GetConfig()
+
+	w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
+	w.Write([]byte(cfg.ToJson()))
+}
diff --git a/api4/system_test.go b/api4/system_test.go
index d9514eabc..2e8b8f70f 100644
--- a/api4/system_test.go
+++ b/api4/system_test.go
@@ -1,7 +1,10 @@
 package api4
 
 import (
+	"strings"
 	"testing"
+
+	"github.com/mattermost/platform/model"
 )
 
 func TestGetPing(t *testing.T) {
@@ -10,9 +13,54 @@ func TestGetPing(t *testing.T) {
 	Client := th.Client
 
 	b, _ := Client.GetPing()
-	if b == false  {
+	if b == false {
 		t.Fatal()
 	}
 }
 
+func TestGetConfig(t *testing.T) {
+	th := Setup().InitBasic().InitSystemAdmin()
+	defer TearDown()
+	Client := th.Client
+
+	_, resp := Client.GetConfig()
+	CheckForbiddenStatus(t, resp)
+
+	cfg, resp := th.SystemAdminClient.GetConfig()
+	CheckNoError(t, resp)
 
+	if len(cfg.TeamSettings.SiteName) == 0 {
+		t.Fatal()
+	}
+
+	if *cfg.LdapSettings.BindPassword != model.FAKE_SETTING && len(*cfg.LdapSettings.BindPassword) != 0 {
+		t.Fatal("did not sanitize properly")
+	}
+	if *cfg.FileSettings.PublicLinkSalt != model.FAKE_SETTING {
+		t.Fatal("did not sanitize properly")
+	}
+	if cfg.FileSettings.AmazonS3SecretAccessKey != model.FAKE_SETTING && len(cfg.FileSettings.AmazonS3SecretAccessKey) != 0 {
+		t.Fatal("did not sanitize properly")
+	}
+	if cfg.EmailSettings.InviteSalt != model.FAKE_SETTING {
+		t.Fatal("did not sanitize properly")
+	}
+	if cfg.EmailSettings.PasswordResetSalt != model.FAKE_SETTING {
+		t.Fatal("did not sanitize properly")
+	}
+	if cfg.EmailSettings.SMTPPassword != model.FAKE_SETTING && len(cfg.EmailSettings.SMTPPassword) != 0 {
+		t.Fatal("did not sanitize properly")
+	}
+	if cfg.GitLabSettings.Secret != model.FAKE_SETTING && len(cfg.GitLabSettings.Secret) != 0 {
+		t.Fatal("did not sanitize properly")
+	}
+	if cfg.SqlSettings.DataSource != model.FAKE_SETTING {
+		t.Fatal("did not sanitize properly")
+	}
+	if cfg.SqlSettings.AtRestEncryptKey != model.FAKE_SETTING {
+		t.Fatal("did not sanitize properly")
+	}
+	if !strings.Contains(strings.Join(cfg.SqlSettings.DataSourceReplicas, " "), model.FAKE_SETTING) && len(cfg.SqlSettings.DataSourceReplicas) != 0 {
+		t.Fatal("did not sanitize properly")
+	}
+}
diff --git a/model/client4.go b/model/client4.go
index 43787cf08..6441abcc2 100644
--- a/model/client4.go
+++ b/model/client4.go
@@ -126,6 +126,10 @@ func (c *Client4) GetPostsRoute() string {
 	return fmt.Sprintf("/posts")
 }
 
+func (c *Client4) GetConfigRoute() string {
+	return fmt.Sprintf("/config")
+}
+
 func (c *Client4) GetPostRoute(postId string) string {
 	return fmt.Sprintf(c.GetPostsRoute()+"/%v", postId)
 }
@@ -957,6 +961,16 @@ func (c *Client4) GetPing() (bool, *Response) {
 	}
 }
 
+// GetConfig will retrieve the server config with some sanitized items.
+func (c *Client4) GetConfig() (*Config, *Response) {
+	if r, err := c.DoApiGet(c.GetConfigRoute(), ""); err != nil {
+		return nil, &Response{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return ConfigFromJson(r.Body), BuildResponse(r)
+	}
+}
+
 // Webhooks Section
 
 // CreateIncomingWebhook creates an incoming webhook for a channel.
-- 
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