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| 1 | +// Copyright © 2025 Ory Corp |
| 2 | +// SPDX-License-Identifier: Apache-2.0 |
| 3 | + |
| 4 | +package oidc |
| 5 | + |
| 6 | +import ( |
| 7 | + "context" |
| 8 | + "encoding/json" |
| 9 | + "net/url" |
| 10 | + |
| 11 | + "github.com/hashicorp/go-retryablehttp" |
| 12 | + "github.com/pkg/errors" |
| 13 | + "golang.org/x/oauth2" |
| 14 | + |
| 15 | + "github.com/ory/herodot" |
| 16 | + "github.com/ory/x/httpx" |
| 17 | +) |
| 18 | + |
| 19 | +var _ OAuth2Provider = (*ProviderVKID)(nil) |
| 20 | + |
| 21 | +type ProviderVKID struct { |
| 22 | + config *Configuration |
| 23 | + reg Dependencies |
| 24 | +} |
| 25 | + |
| 26 | +func NewProviderVKID( |
| 27 | + config *Configuration, |
| 28 | + reg Dependencies, |
| 29 | +) Provider { |
| 30 | + // This is required for all apps when the authorization code is exchanged for tokens. |
| 31 | + // See: https://id.vk.com/about/business/go/docs/en/vkid/latest/vk-id/connection/api-integration/realization |
| 32 | + config.PKCE = "force" |
| 33 | + // A unique device ID. The client must save this ID and pass it in subsequent requests to the authorization server. |
| 34 | + config.PassCallbackParams = []string{"device_id"} |
| 35 | + |
| 36 | + return &ProviderVKID{ |
| 37 | + config: config, |
| 38 | + reg: reg, |
| 39 | + } |
| 40 | +} |
| 41 | + |
| 42 | +func (p *ProviderVKID) Config() *Configuration { |
| 43 | + return p.config |
| 44 | +} |
| 45 | + |
| 46 | +func (p *ProviderVKID) oauth2(ctx context.Context) *oauth2.Config { |
| 47 | + return &oauth2.Config{ |
| 48 | + ClientID: p.config.ClientID, |
| 49 | + ClientSecret: p.config.ClientSecret, |
| 50 | + Endpoint: oauth2.Endpoint{ |
| 51 | + AuthURL: "https://id.vk.com/authorize", |
| 52 | + TokenURL: "https://id.vk.com/oauth2/auth", |
| 53 | + }, |
| 54 | + Scopes: p.config.Scope, |
| 55 | + RedirectURL: p.config.Redir(p.reg.Config().OIDCRedirectURIBase(ctx)), |
| 56 | + } |
| 57 | +} |
| 58 | + |
| 59 | +func (p *ProviderVKID) AuthCodeURLOptions(r ider) []oauth2.AuthCodeOption { |
| 60 | + var opts []oauth2.AuthCodeOption |
| 61 | + if p.config.VKIDProviderParam != "" { |
| 62 | + opts = append(opts, oauth2.SetAuthURLParam("provider", p.config.VKIDProviderParam)) |
| 63 | + } |
| 64 | + return opts |
| 65 | +} |
| 66 | + |
| 67 | +func (p *ProviderVKID) OAuth2(ctx context.Context) (*oauth2.Config, error) { |
| 68 | + return p.oauth2(ctx), nil |
| 69 | +} |
| 70 | + |
| 71 | +func (p *ProviderVKID) Claims(ctx context.Context, exchange *oauth2.Token, query url.Values) (*Claims, error) { |
| 72 | + o, err := p.OAuth2(ctx) |
| 73 | + if err != nil { |
| 74 | + return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) |
| 75 | + } |
| 76 | + |
| 77 | + ctx, client := httpx.SetOAuth2(ctx, p.reg.HTTPClient(ctx), o, exchange) |
| 78 | + req, err := retryablehttp.NewRequestWithContext(ctx, "POST", "https://id.vk.com/oauth2/user_info?client_id="+p.config.ClientID+"&access_token="+exchange.AccessToken, nil) |
| 79 | + if err != nil { |
| 80 | + return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) |
| 81 | + } |
| 82 | + |
| 83 | + resp, err := client.Do(req) |
| 84 | + if err != nil { |
| 85 | + return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) |
| 86 | + } |
| 87 | + defer resp.Body.Close() |
| 88 | + |
| 89 | + if err := logUpstreamError(p.reg.Logger(), resp); err != nil { |
| 90 | + return nil, err |
| 91 | + } |
| 92 | + |
| 93 | + type User struct { |
| 94 | + UserId string `json:"user_id,omitempty"` |
| 95 | + FirstName string `json:"first_name,omitempty"` |
| 96 | + LastName string `json:"last_name,omitempty"` |
| 97 | + Phone string `json:"phone,omitempty"` |
| 98 | + Avatar string `json:"avatar,omitempty"` |
| 99 | + Email string `json:"email,omitempty"` |
| 100 | + Gender int `json:"sex,omitempty"` |
| 101 | + BirthDay string `json:"birthday,omitempty"` |
| 102 | + } |
| 103 | + |
| 104 | + var response struct { |
| 105 | + User User `json:"user,omitempty"` |
| 106 | + } |
| 107 | + |
| 108 | + if err := json.NewDecoder(resp.Body).Decode(&response); err != nil { |
| 109 | + return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) |
| 110 | + } |
| 111 | + |
| 112 | + if response.User.UserId == "" { |
| 113 | + return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("VK ID did not return a user id in the user_info request.")) |
| 114 | + } |
| 115 | + |
| 116 | + gender := "" |
| 117 | + switch response.User.Gender { |
| 118 | + case 1: |
| 119 | + gender = "female" |
| 120 | + case 2: |
| 121 | + gender = "male" |
| 122 | + } |
| 123 | + |
| 124 | + return &Claims{ |
| 125 | + Issuer: "https://id.vk.com/oauth2/user_info", |
| 126 | + Subject: response.User.UserId, |
| 127 | + GivenName: response.User.FirstName, |
| 128 | + FamilyName: response.User.LastName, |
| 129 | + Picture: response.User.Avatar, |
| 130 | + Email: response.User.Email, |
| 131 | + EmailVerified: response.User.Email != "", // VK ID returns only verified email |
| 132 | + PhoneNumber: response.User.Phone, |
| 133 | + PhoneNumberVerified: response.User.Phone != "", // VK ID returns only verified phone number |
| 134 | + Gender: gender, |
| 135 | + Birthdate: response.User.BirthDay, |
| 136 | + }, nil |
| 137 | +} |
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