Files
gochat/backend/internal/handler/api/v1/social_authorization.go
T

101 lines
3.6 KiB
Go

package v1
import (
"fmt"
"net/url"
"strings"
"time"
"github.com/gin-gonic/gin"
"github.com/golang-jwt/jwt/v5"
"github.com/gochat/gochat/internal/oauth/credentialstore"
)
const instagramAuthorizationScope = "instagram_business_basic,instagram_business_manage_messages"
const tiktokAuthorizationScope = "user.info.basic,user.info.username,user.info.stats,user.info.profile,user.account.type,user.insights,message.list.read,message.list.send,message.list.manage"
func authorizationReturnTo(c *gin.Context, bodyValue string) string {
if value := strings.TrimSpace(c.Query("return_to")); value != "" {
return value
}
return strings.TrimSpace(bodyValue)
}
// TikTokAuthorizationRequest is the DTO for initiating TikTok OAuth flow
// with per-inbox credentials.
type TikTokAuthorizationRequest struct {
AppID string `json:"app_id"`
AppSecret string `json:"app_secret"`
ReturnTo string `json:"return_to"`
}
func buildInstagramChatwootAuthorizationURL(accountID uint, returnTo string, appID, appSecret string) (string, error) {
if strings.TrimSpace(appID) == "" || strings.TrimSpace(appSecret) == "" {
return "", fmt.Errorf("Instagram App ID and Secret are required")
}
// Store credentials temporarily for the callback to retrieve
nonce, err := credentialstore.Store(appID, appSecret)
if err != nil {
return "", fmt.Errorf("failed to store OAuth credentials: %w", err)
}
state, err := signedChatwootOAuthStateWithReturnToAndNonce(accountID, appSecret, returnTo, nonce)
if err != nil {
return "", err
}
frontendURL := strings.TrimRight(envOrDefaultV1("FRONTEND_URL", "http://localhost:3000"), "/")
params := url.Values{}
params.Set("client_id", appID)
params.Set("redirect_uri", frontendURL+"/instagram/callback")
params.Set("scope", instagramAuthorizationScope)
params.Set("enable_fb_login", "0")
params.Set("force_authentication", "1")
params.Set("response_type", "code")
params.Set("state", state)
return "https://api.instagram.com/oauth/authorize?" + params.Encode(), nil
}
func buildTikTokChatwootAuthorizationURL(accountID uint, returnTo string, appID, appSecret string) (string, error) {
if strings.TrimSpace(appID) == "" || strings.TrimSpace(appSecret) == "" {
return "", fmt.Errorf("TikTok App ID and Secret are required")
}
// Store credentials temporarily for the callback to retrieve
nonce, err := credentialstore.Store(appID, appSecret)
if err != nil {
return "", fmt.Errorf("failed to store OAuth credentials: %w", err)
}
state, err := signedChatwootOAuthStateWithReturnToAndNonce(accountID, appSecret, returnTo, nonce)
if err != nil {
return "", err
}
frontendURL := strings.TrimRight(envOrDefaultV1("FRONTEND_URL", "http://localhost:3000"), "/")
params := url.Values{}
params.Set("client_id", appID)
params.Set("client_key", appID)
params.Set("redirect_uri", frontendURL+"/tiktok/callback")
params.Set("response_type", "code")
params.Set("scope", tiktokAuthorizationScope)
params.Set("state", state)
return "https://www.tiktok.com/v2/auth/authorize?" + params.Encode(), nil
}
// signedChatwootOAuthStateWithReturnToAndNonce creates a JWT state token
// that includes a credential nonce for the callback to retrieve stored credentials.
func signedChatwootOAuthStateWithReturnToAndNonce(accountID uint, secret string, returnTo string, nonce string) (string, error) {
claims := jwt.MapClaims{
"sub": accountID,
"iat": time.Now().Unix(),
"nonce": nonce,
}
if strings.TrimSpace(returnTo) != "" {
claims["return_to"] = strings.TrimSpace(returnTo)
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
return token.SignedString([]byte(secret))
}