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gcm.go
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gcm.go
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// Copyright 2015-present Oursky Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package push
import (
"github.com/google/go-gcm"
"github.com/mitchellh/mapstructure"
"github.com/skygeario/skygear-server/pkg/server/skydb"
)
var gcmSendHTTP = gcm.SendHttp
// GCMPusher sends push notifications via GCM.
type GCMPusher struct {
APIKey string
}
// Send sends the dictionary represented by m to device.
func (p *GCMPusher) Send(m Mapper, device skydb.Device) error {
message := gcm.HttpMessage{}
if err := mapGCMMessage(m, &message); err != nil {
log.Errorf("Failed to convert gcm message: %v", err)
return err
}
message.To = device.Token
message.RegistrationIds = nil
// NOTE(limouren): might need to check repsonse for deleted / invalid
// device here
if _, err := gcmSendHTTP(p.APIKey, message); err != nil {
log.Errorf("Failed to send GCM Notification: %v", err)
return err
}
return nil
}
func mapGCMMessage(mapper Mapper, msg *gcm.HttpMessage) error {
m := mapper.Map()
if gcmMap, ok := m["gcm"].(map[string]interface{}); ok {
config := mapstructure.DecoderConfig{
TagName: "json",
Result: msg,
}
// NewDecoder only returns error when DecoderConfig.Result
// is not a pointer.
decoder, err := mapstructure.NewDecoder(&config)
if err != nil {
panic(err)
}
if err := decoder.Decode(gcmMap); err != nil {
return err
}
}
return nil
}