rename long name to short name
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@@ -0,0 +1,130 @@
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// handlers/oauth.go
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package handlers
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import (
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"encoding/json"
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"net/http"
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"api_tp/internal/config"
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"api_tp/internal/models"
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"api_tp/internal/utils"
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"golang.org/x/oauth2"
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"gorm.io/gorm"
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)
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type OAuthHandler struct {
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DB *gorm.DB
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}
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type GoogleUserInfo struct {
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ID string `json:"id"`
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Email string `json:"email"`
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Name string `json:"name"`
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}
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func (h *OAuthHandler) GoogleLogin(w http.ResponseWriter, r *http.Request) {
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url := config.GoogleOAuthConfig.AuthCodeURL("state")
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http.Redirect(w, r, url, http.StatusTemporaryRedirect)
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}
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func (h *OAuthHandler) GoogleCallback(w http.ResponseWriter, r *http.Request) {
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code := r.URL.Query().Get("code")
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token, err := config.GoogleOAuthConfig.Exchange(r.Context(), code)
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if err != nil {
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utils.WriteError(w, http.StatusBadRequest, "Failed to exchange token")
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return
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}
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client := config.GoogleOAuthConfig.Client(r.Context(), token)
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resp, err := client.Get("https://www.googleapis.com/oauth2/v2/userinfo")
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if err != nil {
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utils.WriteError(w, http.StatusBadRequest, "Failed to get user info")
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return
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}
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defer resp.Body.Close()
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var userInfo GoogleUserInfo
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if err := json.NewDecoder(resp.Body).Decode(&userInfo); err != nil {
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utils.WriteError(w, http.StatusBadRequest, "Failed to decode user info")
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return
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}
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// Создаем или находим пользователя
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user, err := h.findOrCreateOAuthUser("google", userInfo.ID, userInfo.Email, userInfo.Name, token)
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if err != nil {
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utils.WriteError(w, http.StatusInternalServerError, "Error processing user")
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return
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}
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jwtToken, err := utils.GenerateJWT(user.ID, user.Email)
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if err != nil {
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utils.WriteError(w, http.StatusInternalServerError, "Error generating token")
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return
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}
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// Редирект или возврат токена
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utils.WriteJSON(w, http.StatusOK, map[string]interface{}{
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"token": jwtToken,
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"user": user,
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})
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}
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// Аналогичные методы для Yandex и VK...
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func (h *OAuthHandler) findOrCreateOAuthUser(provider, providerID, email, name string, token *oauth2.Token) (*models.User, error) {
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var oauthProvider models.OAuthProvider
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err := h.DB.Where("provider = ? AND provider_id = ?", provider, providerID).
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Preload("User").
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First(&oauthProvider).Error
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if err == nil {
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// Обновляем токены существующей привязки
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oauthProvider.AccessToken = token.AccessToken
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oauthProvider.RefreshToken = token.RefreshToken
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oauthProvider.ExpiresAt = token.Expiry
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if err := h.DB.Save(&oauthProvider).Error; err != nil {
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return nil, err
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}
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var user models.User
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if err := h.DB.First(&user, oauthProvider.UserID).Error; err != nil {
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return nil, err
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}
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return &user, nil
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}
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// Ищем пользователя по email
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var user models.User
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err = h.DB.Where("email = ?", email).First(&user).Error
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if err != nil {
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// Создаем нового пользователя
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user = models.User{
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Email: email,
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Name: name,
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Password: utils.GenerateRandomPassword(),
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}
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if err := h.DB.Create(&user).Error; err != nil {
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return nil, err
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}
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}
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// Создаем новую привязку OAuth с токенами
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oauthProvider = models.OAuthProvider{
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UserID: user.ID,
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Provider: provider,
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ProviderID: providerID,
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AccessToken: token.AccessToken,
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RefreshToken: token.RefreshToken,
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ExpiresAt: token.Expiry,
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}
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if err := h.DB.Create(&oauthProvider).Error; err != nil {
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return nil, err
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}
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return &user, nil
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}
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