81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
package auth
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import (
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"context"
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"encoding/json"
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"github.com/tabshift-gh/pocketbase/tools/types"
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"golang.org/x/oauth2"
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"golang.org/x/oauth2/facebook"
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)
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func init() {
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Providers[NameFacebook] = wrapFactory(NewFacebookProvider)
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}
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var _ Provider = (*Facebook)(nil)
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// NameFacebook is the unique name of the Facebook provider.
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const NameFacebook string = "facebook"
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// Facebook allows authentication via Facebook OAuth2.
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type Facebook struct {
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BaseProvider
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}
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// NewFacebookProvider creates new Facebook provider instance with some defaults.
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func NewFacebookProvider() *Facebook {
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return &Facebook{BaseProvider{
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ctx: context.Background(),
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order: 5,
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logo: `<svg xmlns="http://www.w3.org/2000/svg" width="256" height="256" preserveAspectRatio="xMidYMid"><path fill="#1877f2" d="M256 128a128 128 0 1 0-148 126.4V165H75.5v-37H108V99.8c0-32 19.1-49.8 48.3-49.8 14 0 28.7 2.5 28.7 2.5V84h-16.1c-16 0-20.9 9.9-20.9 20v24h35.5l-5.7 37H148v89.4A128 128 0 0 0 256 128"/><path fill="#fff" d="m177.8 165 5.7-37H148v-24c0-10.1 5-20 20.9-20H185V52.5S170.4 50 156.3 50C127.1 50 108 67.7 108 99.8V128H75.5v37H108v89.4a129 129 0 0 0 40 0V165z"/></svg>`,
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displayName: "Facebook",
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pkce: true,
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scopes: []string{"email"},
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authURL: facebook.Endpoint.AuthURL,
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tokenURL: facebook.Endpoint.TokenURL,
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userInfoURL: "https://graph.facebook.com/me?fields=name,email,picture.type(large)",
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}}
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}
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// FetchAuthUser returns an AuthUser instance based on the Facebook's user api.
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//
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// API reference: https://developers.facebook.com/docs/graph-api/reference/user/
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func (p *Facebook) FetchAuthUser(token *oauth2.Token) (*AuthUser, error) {
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data, err := p.FetchRawUserInfo(token)
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if err != nil {
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return nil, err
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}
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rawUser := map[string]any{}
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if err := json.Unmarshal(data, &rawUser); err != nil {
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return nil, err
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}
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extracted := struct {
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Id string
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Name string
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Email string
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Picture struct {
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Data struct{ Url string }
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}
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}{}
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if err := json.Unmarshal(data, &extracted); err != nil {
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return nil, err
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}
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user := &AuthUser{
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Id: extracted.Id,
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Name: extracted.Name,
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Email: extracted.Email,
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AvatarURL: extracted.Picture.Data.Url,
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RawUser: rawUser,
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AccessToken: token.AccessToken,
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RefreshToken: token.RefreshToken,
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}
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user.Expiry, _ = types.ParseDateTime(token.Expiry)
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return user, nil
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}
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