added model templates

src/routes/validate/model.ts

@@ -0,0 +1,38 @@
+import Joi from 'joi';
+
+
+export default class ModelValidate {  // validate input for model
+  private static model = {
+    group: Joi.string()
+      .disallow('file')
+      .max(128),
+
+    model: Joi.object({
+        name: Joi.string()
+          .max(128)
+          .required(),
+
+        url: Joi.string()
+          .uri()
+          .max(512)
+          .required(),
+
+        label: Joi.string()
+          .allow('')
+          .max(128)
+          .required()
+      })
+  };
+
+  static input (data) {  // validate input
+    return this.model.model.required().validate(data);
+  }
+
+  static output (data) {  // validate output and strip unwanted properties, returns null if not valid
+    const {value, error} = Joi.object({
+      group: this.model.group,
+      models: Joi.array().items(this.model.model)
+    }).validate(data, {stripUnknown: true});
+    return error !== undefined? null : value;
+  }
+}