Feat: impl microsoft oauth2

internal/provider/microsoft.go

@@ -0,0 +1,73 @@
+package provider
+
+import (
+	"context"
+	"hash/crc32"
+	"net/http"
+
+	json "github.com/json-iterator/go"
+	"github.com/zijiren233/stream"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/microsoft"
+)
+
+type MicrosoftProvider struct {
+	config oauth2.Config
+}
+
+func (p *MicrosoftProvider) Init(ClientID, ClientSecret string, options ...Oauth2Option) {
+	p.config.ClientID = ClientID
+	p.config.ClientSecret = ClientSecret
+	p.config.Scopes = []string{"user.read"}
+	p.config.Endpoint = microsoft.LiveConnectEndpoint
+	for _, o := range options {
+		o(&p.config)
+	}
+}
+
+func (p *MicrosoftProvider) Provider() OAuth2Provider {
+	return "microsoft"
+}
+
+func (p *MicrosoftProvider) NewConfig(options ...Oauth2Option) *oauth2.Config {
+	c := p.config
+	for _, o := range options {
+		o(&c)
+	}
+	return &c
+}
+
+func (p *MicrosoftProvider) GetUserInfo(ctx context.Context, config *oauth2.Config, code string) (*UserInfo, error) {
+	oauth2Token, err := config.Exchange(ctx, code)
+	if err != nil {
+		return nil, err
+	}
+	client := config.Client(ctx, oauth2Token)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://graph.microsoft.com/v1.0/me", nil)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	ui := microsoftUserInfo{}
+	err = json.NewDecoder(resp.Body).Decode(&ui)
+	if err != nil {
+		return nil, err
+	}
+	return &UserInfo{
+		Username:       ui.DisplayName,
+		ProviderUserID: uint(crc32.ChecksumIEEE(stream.StringToBytes(ui.ID))),
+	}, nil
+}
+
+type microsoftUserInfo struct {
+	ID          string `json:"id"`
+	DisplayName string `json:"displayName"`
+}
+
+func init() {
+	registerProvider(new(MicrosoftProvider))
+}