/
twitch.go
168 lines (138 loc) · 4.1 KB
/
twitch.go
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package twitch
import (
"bytes"
"context"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/AdmiralBulldogTv/VodApi/src/global"
"github.com/go-redis/redis/v8"
jsoniter "github.com/json-iterator/go"
"github.com/nicklaw5/helix"
"github.com/sirupsen/logrus"
)
var json = jsoniter.ConfigCompatibleWithStandardLibrary
func GetEventSubs(gCtx global.Context, ctx context.Context) ([]helix.EventSubSubscription, error) {
subs := []helix.EventSubSubscription{}
after := ""
start:
url := "https://api.twitch.tv/helix/eventsub/subscriptions"
if after != "" {
url = url + "?after=" + after
}
req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
if err != nil {
return nil, err
}
req.Header.Set("Client-Id", gCtx.Config().Twitch.ClientID)
tkn, err := GetAuth(gCtx, ctx)
if err != nil {
return nil, err
}
req.Header.Set("Authorization", "Bearer "+tkn)
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
webhookResp := helix.ManyEventSubSubscriptions{}
if err := json.Unmarshal(data, &webhookResp); err != nil {
return nil, err
}
subs = append(subs, webhookResp.EventSubSubscriptions...)
if webhookResp.Pagination.Cursor != "" {
after = webhookResp.Pagination.Cursor
goto start
}
return subs, nil
}
func CreateEventSub(gCtx global.Context, ctx context.Context, hook helix.EventSubSubscription) (helix.EventSubSubscription, error) {
data, _ := json.Marshal(hook)
req, err := http.NewRequestWithContext(ctx, "POST", "https://api.twitch.tv/helix/eventsub/subscriptions", bytes.NewReader(data))
if err != nil {
return helix.EventSubSubscription{}, err
}
auth, err := GetAuth(gCtx, ctx)
if err != nil {
return helix.EventSubSubscription{}, err
}
req.Header.Set("Authorization", "Bearer "+auth)
req.Header.Set("Client-ID", gCtx.Config().Twitch.ClientID)
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return helix.EventSubSubscription{}, err
}
defer resp.Body.Close()
data, err = ioutil.ReadAll(resp.Body)
if err != nil {
return helix.EventSubSubscription{}, err
}
err = json.Unmarshal(data, &hook)
return hook, err
}
func DeleteEventSub(gCtx global.Context, ctx context.Context, id string) error {
req, err := http.NewRequestWithContext(ctx, "DELETE", "https://api.twitch.tv/helix/eventsub/subscriptions?id="+id, nil)
if err != nil {
return err
}
auth, err := GetAuth(gCtx, ctx)
if err != nil {
return err
}
req.Header.Set("Authorization", "Bearer "+auth)
req.Header.Set("Client-ID", gCtx.Config().Twitch.ClientID)
resp, err := http.DefaultClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode > 299 {
return fmt.Errorf("bad status resp: %d", resp.StatusCode)
}
return nil
}
func GetAuth(gCtx global.Context, ctx context.Context) (string, error) {
token, err := gCtx.Inst().Redis.Get(ctx, "twitch:app-token")
if err == nil {
return token.(string), nil
}
if err != redis.Nil {
logrus.Error("failed to query redis: ", err)
}
v := url.Values{}
v.Set("client_id", gCtx.Config().Twitch.ClientID)
v.Set("client_secret", gCtx.Config().Twitch.ClientSecret)
v.Set("grant_type", "client_credentials")
req, err := http.NewRequestWithContext(ctx, "POST", "https://id.twitch.tv/oauth2/token", strings.NewReader(v.Encode()))
if err != nil {
return "", err
}
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
req.Header.Add("Content-Length", strconv.Itoa(len(v.Encode())))
resp, err := http.DefaultClient.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
tokenResp := helix.AccessCredentials{}
if err := json.Unmarshal(data, &tokenResp); err != nil {
return "", err
}
if err := gCtx.Inst().Redis.SetEX(ctx, "twitch:app-token", tokenResp.AccessToken, time.Second*time.Duration(tokenResp.ExpiresIn)); err != nil {
logrus.Error("failed to store token in redis: ", err)
}
return tokenResp.AccessToken, nil
}