Files
go2rtc/cmd/hass/hass.go
2022-08-18 23:53:24 +03:00

128 lines
2.8 KiB
Go

package hass
import (
"encoding/base64"
"encoding/json"
"fmt"
"github.com/AlexxIT/go2rtc/cmd/api"
"github.com/AlexxIT/go2rtc/cmd/app"
"github.com/AlexxIT/go2rtc/cmd/streams"
"github.com/AlexxIT/go2rtc/cmd/webrtc"
"github.com/AlexxIT/go2rtc/pkg/streamer"
"github.com/rs/zerolog"
"net/http"
"os"
"path"
)
func Init() {
var conf struct {
Mod struct {
Config string `yaml:"config"`
} `yaml:"hass"`
}
app.LoadConfig(&conf)
filename := path.Join(conf.Mod.Config, ".storage/core.config_entries")
data, err := os.ReadFile(filename)
if err != nil {
return
}
ent := new(entries)
if err = json.Unmarshal(data, ent); err != nil {
return
}
urls := map[string]string{}
for _, entrie := range ent.Data.Entries {
switch entrie.Domain {
case "generic":
if entrie.Options.StreamSource != "" {
urls[entrie.Title] = entrie.Options.StreamSource
}
}
}
streams.HandleFunc("hass", func(url string) (streamer.Producer, error) {
if hurl := urls[url[5:]]; hurl != "" {
return streams.GetProducer(hurl)
}
return nil, fmt.Errorf("can't get url: %s", url)
})
// support https://www.home-assistant.io/integrations/rtsp_to_webrtc/
api.HandleFunc("/static", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
})
api.HandleFunc("/stream", handler)
log = app.GetLogger("api")
}
var log zerolog.Logger
func handler(w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
log.Error().Err(err).Msg("[api.hass] parse form")
return
}
url := r.FormValue("url")
str := r.FormValue("sdp64")
offer, err := base64.StdEncoding.DecodeString(str)
if err != nil {
log.Error().Err(err).Msg("[api.hass] sdp64 decode")
return
}
stream := streams.Get(url)
str, err = webrtc.ExchangeSDP(stream, string(offer), r.UserAgent())
if err != nil {
log.Error().Err(err).Msg("[api.hass] exchange SDP")
return
}
resp := struct {
Answer string `json:"sdp64"`
}{
Answer: base64.StdEncoding.EncodeToString([]byte(str)),
}
data, err := json.Marshal(resp)
if err != nil {
log.Error().Err(err).Msg("[api.hass] marshal JSON")
return
}
w.Header().Set("Content-Type", "application/json")
if _, err = w.Write(data); err != nil {
log.Error().Err(err).Msg("[api.hass] write")
return
}
}
type entries struct {
Data struct {
Entries []struct {
Title string `json:"title"`
Domain string `json:"domain"`
Data struct {
ClientID string `json:"iOSPairingId"`
ClientPrivate string `json:"iOSDeviceLTSK"`
ClientPublic string `json:"iOSDeviceLTPK"`
DeviceID string `json:"AccessoryPairingID"`
DevicePublic string `json:"AccessoryLTPK"`
DeviceHost string `json:"AccessoryIP"`
DevicePort uint16 `json:"AccessoryPort"`
} `json:"data"`
Options struct {
StreamSource string `json:"stream_source"`
}
} `json:"entries"`
} `json:"data"`
}