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package send
import (
"fmt"
"net/url"
"github.com/emersion/go-sasl"
"golang.org/x/oauth2"
"git.sr.ht/~rjarry/aerc/lib"
)
func newSaslClient(auth string, uri *url.URL) (sasl.Client, error) {
var saslClient sasl.Client
switch auth {
case "":
fallthrough
case "none":
saslClient = nil
case "login":
password, _ := uri.User.Password()
saslClient = sasl.NewLoginClient(uri.User.Username(), password)
case "plain":
password, _ := uri.User.Password()
saslClient = sasl.NewPlainClient("", uri.User.Username(), password)
case "oauthbearer":
q := uri.Query()
oauth2 := &oauth2.Config{}
if q.Get("token_endpoint") != "" {
oauth2.ClientID = q.Get("client_id")
oauth2.ClientSecret = q.Get("client_secret")
oauth2.Scopes = []string{q.Get("scope")}
oauth2.Endpoint.TokenURL = q.Get("token_endpoint")
}
password, _ := uri.User.Password()
bearer := lib.OAuthBearer{
OAuth2: oauth2,
Enabled: true,
}
if bearer.OAuth2.Endpoint.TokenURL != "" {
token, err := bearer.ExchangeRefreshToken(password)
if err != nil {
return nil, err
}
password = token.AccessToken
}
saslClient = sasl.NewOAuthBearerClient(&sasl.OAuthBearerOptions{
Username: uri.User.Username(),
Token: password,
})
case "xoauth2":
q := uri.Query()
oauth2 := &oauth2.Config{}
if q.Get("token_endpoint") != "" {
oauth2.ClientID = q.Get("client_id")
oauth2.ClientSecret = q.Get("client_secret")
oauth2.Scopes = []string{q.Get("scope")}
oauth2.Endpoint.TokenURL = q.Get("token_endpoint")
}
password, _ := uri.User.Password()
bearer := lib.Xoauth2{
OAuth2: oauth2,
Enabled: true,
}
if bearer.OAuth2.Endpoint.TokenURL != "" {
token, err := bearer.ExchangeRefreshToken(password)
if err != nil {
return nil, err
}
password = token.AccessToken
}
saslClient = lib.NewXoauth2Client(uri.User.Username(), password)
default:
return nil, fmt.Errorf("Unsupported auth mechanism %s", auth)
}
return saslClient, nil
}
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