Fix url joining

#35

internal/web/auth.go

@@ -18,6 +18,7 @@ import (
  "gorm.io/gorm"
  "io"
  "net/http"
+ "net/url"
  "strings"
 )
 
@@ -261,18 +262,18 @@ func oauth(ctx echo.Context) error {
  github.New(
  config.C.GithubClientKey,
  config.C.GithubSecret,
- opengistUrl+"/oauth/github/callback"),
+ url.JoinPath(opengistUrl, "/oauth/github/callback")),
  )
 
  case "gitea":
  goth.UseProviders(
  gitea.NewCustomisedURL(
  config.C.GiteaClientKey,
  config.C.GiteaSecret,
- opengistUrl+"/oauth/gitea/callback",
- giteaUrl+"/login/oauth/authorize",
- giteaUrl+"/login/oauth/access_token",
- giteaUrl+"/api/v1/user"),
+ url.JoinPath(opengistUrl, "/oauth/gitea/callback"),
+ url.JoinPath(giteaUrl, "/login/oauth/authorize"),
+ url.JoinPath(giteaUrl, "/login/oauth/access_token"),
+ url.JoinPath(giteaUrl, "/api/v1/user")),
  )
  }