MM-57013 Added download button for downloading logs from server logs page in system console (#26389)

* added download system logs

* download all logs

* download all logs check-lint fix

* check lint fix

* download logs api

* download logs api working

* download logs working with error log

* linting issues and code cleanup

* CI check fix

* documented the api and logs from file with error handling

* test and final changes done

* final changes done

* Fix order of server-side translations

* Fix incorrect indentation of logs.yaml

---------

Co-authored-by: Harrison Healey <harrisonmhealey@gmail.com>

server/channels/app/app_iface.go

@@ -728,6 +728,7 @@ type AppIface interface {
 	GetLatestVersion(rctx request.CTX, latestVersionUrl string) (*model.GithubReleaseInfo, *model.AppError)
 	GetLogs(rctx request.CTX, page, perPage int) ([]string, *model.AppError)
 	GetLogsSkipSend(rctx request.CTX, page, perPage int, logFilter *model.LogFilter) ([]string, *model.AppError)
+	GetMattermostLog(ctx request.CTX) (*model.FileData, error)
 	GetMemberCountsByGroup(rctx request.CTX, channelID string, includeTimezones bool) ([]*model.ChannelMemberCountByGroup, *model.AppError)
 	GetMessageForNotification(post *model.Post, teamName, siteUrl string, translateFunc i18n.TranslateFunc) string
 	GetMultipleEmojiByName(c request.CTX, names []string) ([]*model.Emoji, *model.AppError)

server/channels/app/opentracing/opentracing_layer.go

@@ -7616,6 +7616,28 @@ func (a *OpenTracingAppLayer) GetMarketplacePlugins(rctx request.CTX, filter *mo
 	return resultVar0, resultVar1
 }
 
+func (a *OpenTracingAppLayer) GetMattermostLog(ctx request.CTX) (*model.FileData, error) {
+	origCtx := a.ctx
+	span, newCtx := tracing.StartSpanWithParentByContext(a.ctx, "app.GetMattermostLog")
+
+	a.ctx = newCtx
+	a.app.Srv().Store().SetContext(newCtx)
+	defer func() {
+		a.app.Srv().Store().SetContext(origCtx)
+		a.ctx = origCtx
+	}()
+
+	defer span.Finish()
+	resultVar0, resultVar1 := a.app.GetMattermostLog(ctx)
+
+	if resultVar1 != nil {
+		span.LogFields(spanlog.Error(resultVar1))
+		ext.Error.Set(span, true)
+	}
+
+	return resultVar0, resultVar1
+}
+
 func (a *OpenTracingAppLayer) GetMemberCountsByGroup(rctx request.CTX, channelID string, includeTimezones bool) ([]*model.ChannelMemberCountByGroup, *model.AppError) {
 	origCtx := a.ctx
 	span, newCtx := tracing.StartSpanWithParentByContext(a.ctx, "app.GetMemberCountsByGroup")

server/channels/app/support_packet.go

@@ -44,7 +44,7 @@ func (a *App) GenerateSupportPacket(c request.CTX, options *model.SupportPacketO
 	}
 
 	if options.IncludeLogs {
-		functions["mattermost log"] = a.getMattermostLog
+		functions["mattermost log"] = a.GetMattermostLog
 		functions["notification log"] = a.getNotificationsLog
 	}
 
@@ -321,7 +321,7 @@ func (a *App) getNotificationsLog(_ request.CTX) (*model.FileData, error) {
 	return fileData, nil
 }
 
-func (a *App) getMattermostLog(_ request.CTX) (*model.FileData, error) {
+func (a *App) GetMattermostLog(ctx request.CTX) (*model.FileData, error) {
 	if !*a.Config().LogSettings.EnableFile {
 		return nil, errors.New("Unable to retrieve mattermost.log because LogSettings: EnableFile is set to false")
 	}

server/channels/app/support_packet_test.go

@@ -347,7 +347,7 @@ func TestGetMattermostLog(t *testing.T) {
 		*cfg.LogSettings.EnableFile = false
 	})
 
-	fileData, err := th.App.getMattermostLog(th.Context)
+	fileData, err := th.App.GetMattermostLog(th.Context)
 	assert.Nil(t, fileData)
 	assert.ErrorContains(t, err, "Unable to retrieve mattermost.log because LogSettings: EnableFile is set to false")
 
@@ -367,7 +367,7 @@ func TestGetMattermostLog(t *testing.T) {
 	logLocation := config.GetLogFileLocation(dir)
 
 	// There is no mattermost.log file yet, so this fails
-	fileData, err = th.App.getMattermostLog(th.Context)
+	fileData, err = th.App.GetMattermostLog(th.Context)
 	assert.Nil(t, fileData)
 	assert.ErrorContains(t, err, "failed read mattermost log file at path "+logLocation)
 
@@ -376,7 +376,7 @@ func TestGetMattermostLog(t *testing.T) {
 	err = os.WriteFile(logLocation, d1, 0777)
 	require.NoError(t, err)
 
-	fileData, err = th.App.getMattermostLog(th.Context)
+	fileData, err = th.App.GetMattermostLog(th.Context)
 	require.NoError(t, err)
 	require.NotNil(t, fileData)
 	assert.Equal(t, "mattermost.log", fileData.Filename)