78 lines
3.0 KiB
Go
78 lines
3.0 KiB
Go
package fcm
|
|
|
|
import (
|
|
"errors"
|
|
"strings"
|
|
)
|
|
|
|
var (
|
|
// ErrInvalidMessage occurs if push notitication message is nil.
|
|
ErrInvalidMessage = errors.New("message is invalid")
|
|
|
|
// ErrInvalidTarget occurs if message topic is empty.
|
|
ErrInvalidTarget = errors.New("topic is invalid or registration ids are not set")
|
|
|
|
// ErrToManyRegIDs occurs when registration ids more then 1000.
|
|
ErrToManyRegIDs = errors.New("too many registrations ids")
|
|
|
|
// ErrInvalidTimeToLive occurs if TimeToLive more then 2419200.
|
|
ErrInvalidTimeToLive = errors.New("messages time-to-live is invalid")
|
|
)
|
|
|
|
// Notification specifies the predefined, user-visible key-value pairs of the
|
|
// notification payload.
|
|
type Notification struct {
|
|
Title string `json:"title,omitempty"`
|
|
Body string `json:"body,omitempty"`
|
|
Icon string `json:"icon,omitempty"`
|
|
Sound string `json:"sound,omitempty"`
|
|
Badge string `json:"badge,omitempty"`
|
|
Tag string `json:"tag,omitempty"`
|
|
Color string `json:"color,omitempty"`
|
|
ClickAction string `json:"click_action,omitempty"`
|
|
BodyLocKey string `json:"body_loc_key,omitempty"`
|
|
BodyLocArgs string `json:"body_loc_args,omitempty"`
|
|
TitleLocKey string `json:"title_loc_key,omitempty"`
|
|
TitleLocArgs string `json:"title_loc_args,omitempty"`
|
|
}
|
|
|
|
// Message represents list of targets, options, and payload for HTTP JSON
|
|
// messages.
|
|
type Message struct {
|
|
To string `json:"to,omitempty"`
|
|
RegistrationIDs []string `json:"registration_ids,omitempty"`
|
|
Condition string `json:"condition,omitempty"`
|
|
CollapseKey string `json:"collapse_key,omitempty"`
|
|
Priority string `json:"priority,omitempty"`
|
|
ContentAvailable bool `json:"content_available,omitempty"`
|
|
DelayWhileIdle bool `json:"delay_while_idle,omitempty"`
|
|
TimeToLive *uint `json:"time_to_live,omitempty"`
|
|
DeliveryReceiptRequested bool `json:"delivery_receipt_requested,omitempty"`
|
|
DryRun bool `json:"dry_run,omitempty"`
|
|
RestrictedPackageName string `json:"restricted_package_name,omitempty"`
|
|
Notification *Notification `json:"notification,omitempty"`
|
|
Data map[string]interface{} `json:"data,omitempty"`
|
|
}
|
|
|
|
// Validate returns an error if the message is not well-formed.
|
|
func (msg *Message) Validate() error {
|
|
if msg == nil {
|
|
return ErrInvalidMessage
|
|
}
|
|
|
|
// validate target identifier: `to` or `condition`, or `registration_ids`
|
|
opCnt := strings.Count(msg.Condition, "&&") + strings.Count(msg.Condition, "||")
|
|
if msg.To == "" && (msg.Condition == "" || opCnt > 2) && len(msg.RegistrationIDs) == 0 {
|
|
return ErrInvalidTarget
|
|
}
|
|
|
|
if len(msg.RegistrationIDs) > 1000 {
|
|
return ErrToManyRegIDs
|
|
}
|
|
|
|
if msg.TimeToLive != nil && *msg.TimeToLive > uint(2419200) {
|
|
return ErrInvalidTimeToLive
|
|
}
|
|
return nil
|
|
}
|