134 lines
3.4 KiB
Go
134 lines
3.4 KiB
Go
package push
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import (
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scn "blackforestbytes.com/simplecloudnotifier"
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"blackforestbytes.com/simplecloudnotifier/models"
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"bytes"
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"context"
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_ "embed"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/gin-gonic/gin"
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"github.com/rs/zerolog/log"
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"gogs.mikescher.com/BlackForestBytes/goext/langext"
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"io"
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"net/http"
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"strconv"
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"strings"
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"time"
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)
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// https://firebase.google.com/docs/cloud-messaging/send-message#rest
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// https://firebase.google.com/docs/cloud-messaging/auth-server
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type FirebaseConnector struct {
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fbProject string
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client http.Client
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auth *FirebaseOAuth2
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}
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func NewFirebaseConn(conf scn.Config) (NotificationClient, error) {
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pkey := strings.ReplaceAll(conf.FirebasePrivateKey, "\\n", "\n")
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fbauth, err := NewAuth(conf.FirebaseTokenURI, conf.FirebaseProjectID, conf.FirebaseClientMail, pkey)
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if err != nil {
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return nil, err
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}
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return &FirebaseConnector{
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fbProject: conf.FirebaseProjectID,
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client: http.Client{Timeout: 5 * time.Second},
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auth: fbauth,
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}, nil
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}
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type Notification struct {
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Id string
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Token string
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Platform string
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Title string
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Body string
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Priority int
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}
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func (fb FirebaseConnector) SendNotification(ctx context.Context, client models.Client, msg models.Message, compatTitleOverride *string, compatMsgIDOverride *string) (string, error) {
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uri := "https://fcm.googleapis.com/v1/projects/" + fb.fbProject + "/messages:send"
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jsonBody := gin.H{
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"data": gin.H{
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"scn_msg_id": langext.Coalesce(compatMsgIDOverride, msg.MessageID.String()),
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"usr_msg_id": langext.Coalesce(msg.UserMessageID, ""),
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"client_id": client.ClientID.String(),
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"timestamp": strconv.FormatInt(msg.Timestamp().Unix(), 10),
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"priority": strconv.Itoa(msg.Priority),
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"trimmed": langext.Conditional(msg.NeedsTrim(), "true", "false"),
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"title": langext.Coalesce(compatTitleOverride, msg.Title),
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"body": langext.Coalesce(msg.TrimmedContent(), ""),
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},
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"token": client.FCMToken,
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"android": gin.H{
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"priority": "high",
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},
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"apns": gin.H{},
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}
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if client.Type == models.ClientTypeIOS {
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jsonBody["notification"] = gin.H{
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"title": msg.Title,
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"body": msg.ShortContent(),
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}
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}
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bytesBody, err := json.Marshal(gin.H{"message": jsonBody})
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if err != nil {
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return "", err
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}
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request, err := http.NewRequestWithContext(ctx, "POST", uri, bytes.NewBuffer(bytesBody))
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if err != nil {
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return "", err
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}
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tok, err := fb.auth.Token(ctx)
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if err != nil {
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log.Err(err).Msg("Refreshing FB token failed")
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return "", err
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}
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request.Header.Set("Authorization", "Bearer "+tok)
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request.Header.Set("Content-Type", "application/json")
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request.Header.Set("Accept", "application/json")
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response, err := fb.client.Do(request)
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if err != nil {
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return "", err
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}
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defer func() { _ = response.Body.Close() }()
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if response.StatusCode < 200 || response.StatusCode >= 300 {
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if bstr, err := io.ReadAll(response.Body); err == nil {
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return "", errors.New(fmt.Sprintf("FCM-Request returned %d: %s", response.StatusCode, string(bstr)))
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} else {
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return "", errors.New(fmt.Sprintf("FCM-Request returned %d", response.StatusCode))
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}
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}
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respBodyBin, err := io.ReadAll(response.Body)
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if err != nil {
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return "", err
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}
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var respBody struct {
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Name string `json:"name"`
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}
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if err := json.Unmarshal(respBodyBin, &respBody); err != nil {
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return "", err
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}
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log.Info().Msg(fmt.Sprintf("Sucessfully pushed notification %s", msg.MessageID))
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return respBody.Name, nil
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}
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