Use mattermost v5 module (#1192)

vendor/github.com/mattermost/mattermost-server/v5/model/system.go

@@ -0,0 +1,71 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"io"
+	"math/big"
+)
+
+const (
+	SYSTEM_DIAGNOSTIC_ID                  = "DiagnosticId"
+	SYSTEM_RAN_UNIT_TESTS                 = "RanUnitTests"
+	SYSTEM_LAST_SECURITY_TIME             = "LastSecurityTime"
+	SYSTEM_ACTIVE_LICENSE_ID              = "ActiveLicenseId"
+	SYSTEM_LAST_COMPLIANCE_TIME           = "LastComplianceTime"
+	SYSTEM_ASYMMETRIC_SIGNING_KEY         = "AsymmetricSigningKey"
+	SYSTEM_POST_ACTION_COOKIE_SECRET      = "PostActionCookieSecret"
+	SYSTEM_INSTALLATION_DATE_KEY          = "InstallationDate"
+	SYSTEM_FIRST_SERVER_RUN_TIMESTAMP_KEY = "FirstServerRunTimestamp"
+)
+
+type System struct {
+	Name  string `json:"name"`
+	Value string `json:"value"`
+}
+
+func (o *System) ToJson() string {
+	b, _ := json.Marshal(o)
+	return string(b)
+}
+
+func SystemFromJson(data io.Reader) *System {
+	var o *System
+	json.NewDecoder(data).Decode(&o)
+	return o
+}
+
+type SystemPostActionCookieSecret struct {
+	Secret []byte `json:"key,omitempty"`
+}
+
+type SystemAsymmetricSigningKey struct {
+	ECDSAKey *SystemECDSAKey `json:"ecdsa_key,omitempty"`
+}
+
+type SystemECDSAKey struct {
+	Curve string   `json:"curve"`
+	X     *big.Int `json:"x"`
+	Y     *big.Int `json:"y"`
+	D     *big.Int `json:"d,omitempty"`
+}
+
+// ServerBusyState provides serialization for app.Busy.
+type ServerBusyState struct {
+	Busy       bool   `json:"busy"`
+	Expires    int64  `json:"expires"`
+	Expires_ts string `json:"expires_ts,omitempty"`
+}
+
+func (sbs *ServerBusyState) ToJson() string {
+	b, _ := json.Marshal(sbs)
+	return string(b)
+}
+
+func ServerBusyStateFromJson(r io.Reader) *ServerBusyState {
+	var sbs *ServerBusyState
+	json.NewDecoder(r).Decode(&sbs)
+	return sbs
+}