Update vendor (github.com/mattermost)

vendor/github.com/mattermost/mattermost-server/model/command_response.go

@@ -0,0 +1,61 @@
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+const (
+	COMMAND_RESPONSE_TYPE_IN_CHANNEL = "in_channel"
+	COMMAND_RESPONSE_TYPE_EPHEMERAL  = "ephemeral"
+)
+
+type CommandResponse struct {
+	ResponseType string             `json:"response_type"`
+	Text         string             `json:"text"`
+	Username     string             `json:"username"`
+	IconURL      string             `json:"icon_url"`
+	Type         string             `json:"type"`
+	Props        StringInterface    `json:"props"`
+	GotoLocation string             `json:"goto_location"`
+	Attachments  []*SlackAttachment `json:"attachments"`
+}
+
+func (o *CommandResponse) ToJson() string {
+	b, _ := json.Marshal(o)
+	return string(b)
+}
+
+func CommandResponseFromHTTPBody(contentType string, body io.Reader) *CommandResponse {
+	if strings.TrimSpace(strings.Split(contentType, ";")[0]) == "application/json" {
+		return CommandResponseFromJson(body)
+	}
+	if b, err := ioutil.ReadAll(body); err == nil {
+		return CommandResponseFromPlainText(string(b))
+	}
+	return nil
+}
+
+func CommandResponseFromPlainText(text string) *CommandResponse {
+	return &CommandResponse{
+		Text: text,
+	}
+}
+
+func CommandResponseFromJson(data io.Reader) *CommandResponse {
+	decoder := json.NewDecoder(data)
+	var o CommandResponse
+
+	if err := decoder.Decode(&o); err != nil {
+		return nil
+	}
+
+	o.Attachments = StringifySlackFieldValue(o.Attachments)
+
+	return &o
+}