cases-header.go

// Copyright 2017 Aleksey Blinov. All rights reserved.

package apns2mock

import (
	"strconv"

	"github.com/satori/go.uuid"
)

// HeaderHandlers deal with request headers:
//
// Invalid UUID format in APNS Id is 400, "BadMessageId".
//
// Priority that is not empty, 5 or 10 is 400, "BadPriority".
//
// Empty topic is 400, "MissingTopic".
//
// Topics starting with 'd' are 400, "TopicDisallowed".
//
// Collapse Ids longer than 64 are 400, "BadCollapseId".
//
// Expiration date that cannot be parsed is 400, "BadExpirationDate".
var HeaderHandlers []HadlerFunc

func init() {
	HeaderHandlers = []HadlerFunc{
		func(req *APNSRequest) (int, string) {
			if h := req.Header.Get("apns-id"); h != "" {
				if _, err := uuid.FromString(h); err != nil {
					return 400, "BadMessageId"
				}
			}
			switch h := req.Header.Get("apns-priority"); h {
			case "", "5", "10":
			default:
				return 400, "BadPriority"
			}
			if h := req.Header.Get("apns-topic"); h == "" {
				return 400, "MissingTopic"
			}
			if h := req.Header.Get("apns-topic"); h != "" && h[0] == 'd' {
				return 400, "TopicDisallowed"
			}
			if h := req.Header.Get("apns-collapse-id"); len(h) > 64 {
				return 400, "BadCollapseId"
			}
			if h := req.Header.Get("apns-expiration"); h != "" {
				if _, err := strconv.ParseInt(h, 10, 64); err != nil {
					return 400, "BadExpirationDate"
				}
			}
			return 0, ""
		},
	}
}