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oauth.go
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oauth.go
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/*
Copyright 2021 The KodeRover Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package oauth
import (
"context"
"fmt"
"net/http"
"net/url"
"golang.org/x/oauth2"
commonrepo "github.com/koderover/zadig/v2/pkg/microservice/aslan/core/common/repository/mongodb"
"github.com/koderover/zadig/v2/pkg/microservice/systemconfig/core/codehost/repository/models"
"github.com/koderover/zadig/v2/pkg/tool/log"
)
type OAuth struct {
oauth2Config *oauth2.Config
}
type OAuth2Error struct {
Err string
Description string
}
func (e *OAuth2Error) Error() string {
if e.Description == "" {
return e.Err
}
return fmt.Sprintf("%s: %s", e.Err, e.Description)
}
func New(callbackURL, clientID, clientSecret string, scopes []string, endpoint oauth2.Endpoint) *OAuth {
return &OAuth{
oauth2Config: &oauth2.Config{
ClientID: clientID,
ClientSecret: clientSecret,
Endpoint: endpoint,
RedirectURL: callbackURL,
Scopes: scopes,
},
}
}
func (o *OAuth) LoginURL(state string) string {
return o.oauth2Config.AuthCodeURL(state)
}
func (o *OAuth) HandleCallback(r *http.Request, c *models.CodeHost) (*oauth2.Token, error) {
q := r.URL.Query()
if errType := q.Get("error"); errType != "" {
return nil, &OAuth2Error{errType, q.Get("error_description")}
}
httpClient := http.DefaultClient
// if set http proxy
proxies, err := commonrepo.NewProxyColl().List(&commonrepo.ProxyArgs{})
if err == nil && len(proxies) != 0 && proxies[0].EnableRepoProxy && c.EnableProxy {
log.Info("use proxy")
port := proxies[0].Port
ip := proxies[0].Address
proxyRawUrl := fmt.Sprintf("http://%s:%d", ip, port)
proxyUrl, err2 := url.Parse(proxyRawUrl)
if err2 == nil {
httpClient.Transport = &http.Transport{
Proxy: http.ProxyURL(proxyUrl),
}
}
}
ctx := context.Background()
ctx = context.WithValue(ctx, oauth2.HTTPClient, httpClient)
return o.oauth2Config.Exchange(ctx, q.Get("code"))
}