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// Package endpoints defines a wrapper around the various
// endpoints returned by an eduVPN server in well-known
package endpoints
import (
"fmt"
"net/url"
)
// List is the list of endpoints as returned by the eduVPN server
type List struct {
// API is the API endpoint which we use for calls such as /info, /connect, ...
API string `json:"api_endpoint"`
// Authorization is the authorization endpoint for OAuth
Authorization string `json:"authorization_endpoint"`
// Token is the token endpoint for OAuth
Token string `json:"token_endpoint"`
}
// Versions is the endpoints separated by API version
type Versions struct {
// V2 is the legacy V2 API, this is not used
V2 List `json:"http://eduvpn.org/api#2"`
// V3 is the newest API, which we use
V3 List `json:"http://eduvpn.org/api#3"`
}
// Endpoints defines the json format for /.well-known/vpn-user-portal".
type Endpoints struct {
// API defines the API endpoints, split by version
API Versions `json:"api"`
// V is the version string for the server
V string `json:"v"`
}
// Validate validates the endpoints by parsing them and checking the scheme is HTTP
// An error is returned if they are not valid
func (e Endpoints) Validate() error {
v3 := e.API.V3
pAPI, err := url.Parse(v3.API)
if err != nil {
return fmt.Errorf("failed to parse API endpoint: %w", err)
}
pAuth, err := url.Parse(v3.Authorization)
if err != nil {
return fmt.Errorf("failed to parse API authorization endpoint: %w", err)
}
pToken, err := url.Parse(v3.Token)
if err != nil {
return fmt.Errorf("failed to parse API token endpoint: %w", err)
}
if pAPI.Scheme != "https" {
return fmt.Errorf("API Scheme: '%s', is not equal to HTTPS", pAPI.Scheme)
}
if pAPI.Scheme != pAuth.Scheme {
return fmt.Errorf("API scheme: '%v', is not equal to authorization scheme: '%v'", pAPI.Scheme, pAuth.Scheme)
}
if pAPI.Scheme != pToken.Scheme {
return fmt.Errorf("API scheme: '%v', is not equal to token scheme: '%v'", pAPI.Scheme, pToken.Scheme)
}
return nil
}
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