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gitea/vendor/github.com/markbates/goth/provider.go

75 lines
2.0 KiB

package goth
import (
"context"
"fmt"
"net/http"
"golang.org/x/oauth2"
)
// Provider needs to be implemented for each 3rd party authentication provider
// e.g. Facebook, Twitter, etc...
type Provider interface {
Name() string
SetName(name string)
BeginAuth(state string) (Session, error)
UnmarshalSession(string) (Session, error)
FetchUser(Session) (User, error)
Debug(bool)
RefreshToken(refreshToken string) (*oauth2.Token, error) //Get new access token based on the refresh token
RefreshTokenAvailable() bool //Refresh token is provided by auth provider or not
}
const NoAuthUrlErrorMessage = "an AuthURL has not been set"
// Providers is list of known/available providers.
type Providers map[string]Provider
var providers = Providers{}
// UseProviders adds a list of available providers for use with Goth.
// Can be called multiple times. If you pass the same provider more
// than once, the last will be used.
func UseProviders(viders ...Provider) {
for _, provider := range viders {
providers[provider.Name()] = provider
}
}
// GetProviders returns a list of all the providers currently in use.
func GetProviders() Providers {
return providers
}
// GetProvider returns a previously created provider. If Goth has not
// been told to use the named provider it will return an error.
func GetProvider(name string) (Provider, error) {
provider := providers[name]
if provider == nil {
return nil, fmt.Errorf("no provider for %s exists", name)
}
return provider, nil
}
// ClearProviders will remove all providers currently in use.
// This is useful, mostly, for testing purposes.
func ClearProviders() {
providers = Providers{}
}
// ContextForClient provides a context for use with oauth2.
func ContextForClient(h *http.Client) context.Context {
if h == nil {
return oauth2.NoContext
}
return context.WithValue(oauth2.NoContext, oauth2.HTTPClient, h)
}
// HTTPClientWithFallBack to be used in all fetch operations.
func HTTPClientWithFallBack(h *http.Client) *http.Client {
if h != nil {
return h
}
return http.DefaultClient
}