#MM-12130 changes for custom service terms (#9450)

* #MM-12130 changes for custom service terms

* Fixed styling

* Added getServiceTerms API

* removed unnecessary panic

* removed custom service terms text from flat config

* reverted user sql store as those changes are no longer needed

* added tests

* Updated a config key to be more standard

* Added copyright info

* Loading service terms only if the feature is enabled

* Loading service terms only if the feature is enabled

* removed unused index

* added createservice termns API

* made a param to bool instead of string

* added createservice termns API

* review fixes

* fixed styling

* Minor refactoring

* removed saveConfig and loadConfig magic

* added empty service terms text check to createServiceTerms API

* refactoed some urls to be terms_of_service instead of service_terms

* removed check for support settings

* changed URLs in tests

* removed unused code

* fixed a bug

* added service termd id in conif

* fixed a test

* review fixes

* minor fixes

* Fixed TestCreateServiceTerms

1 files changed, 70 insertions, 0 deletions

diff --git a/model/service_terms.go b/model/service_terms.go
new file mode 100644
index 000000000..64ecabf31
--- /dev/null
+++ b/model/service_terms.go
@@ -0,0 +1,70 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"unicode/utf8"
+)
+
+// we only ever need the latest version of service terms
+const SERVICE_TERMS_CACHE_SIZE = 1
+
+type ServiceTerms struct {
+	Id       string `json:"id"`
+	CreateAt int64  `json:"create_at"`
+	UserId   string `json:"user_id"`
+	Text     string `json:"text"`
+}
+
+func (t *ServiceTerms) IsValid() *AppError {
+	if len(t.Id) != 26 {
+		return InvalidServiceTermsError("id", "")
+	}
+
+	if t.CreateAt == 0 {
+		return InvalidServiceTermsError("create_at", t.Id)
+	}
+
+	if len(t.UserId) != 26 {
+		return InvalidServiceTermsError("user_id", t.Id)
+	}
+
+	if utf8.RuneCountInString(t.Text) > POST_MESSAGE_MAX_RUNES_V2 {
+		return InvalidServiceTermsError("text", t.Id)
+	}
+
+	return nil
+}
+
+func (t *ServiceTerms) ToJson() string {
+	b, _ := json.Marshal(t)
+	return string(b)
+}
+
+func ServiceTermsFromJson(data io.Reader) *ServiceTerms {
+	var serviceTerms *ServiceTerms
+	json.NewDecoder(data).Decode(&serviceTerms)
+	return serviceTerms
+}
+
+func InvalidServiceTermsError(fieldName string, serviceTermsId string) *AppError {
+	id := fmt.Sprintf("model.term.is_valid.%s.app_error", fieldName)
+	details := ""
+	if serviceTermsId != "" {
+		details = "service_terms_id=" + serviceTermsId
+	}
+	return NewAppError("ServiceTerms.IsValid", id, nil, details, http.StatusBadRequest)
+}
+
+func (t *ServiceTerms) PreSave() {
+	if t.Id == "" {
+		t.Id = NewId()
+	}
+
+	t.CreateAt = GetMillis()
+}