55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
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// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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package oauth2 // import "miniflux.app/v2/internal/oauth2"
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import (
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"crypto/sha256"
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"encoding/base64"
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"io"
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"golang.org/x/oauth2"
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"miniflux.app/v2/internal/crypto"
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)
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type Authorization struct {
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url string
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state string
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codeVerifier string
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}
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func (u *Authorization) RedirectURL() string {
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return u.url
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}
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func (u *Authorization) State() string {
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return u.state
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}
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func (u *Authorization) CodeVerifier() string {
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return u.codeVerifier
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}
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func GenerateAuthorization(config *oauth2.Config) *Authorization {
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codeVerifier := crypto.GenerateRandomStringHex(32)
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sha2 := sha256.New()
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io.WriteString(sha2, codeVerifier)
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codeChallenge := base64.RawURLEncoding.EncodeToString(sha2.Sum(nil))
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state := crypto.GenerateRandomStringHex(24)
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authUrl := config.AuthCodeURL(
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state,
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oauth2.SetAuthURLParam("code_challenge_method", "S256"),
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oauth2.SetAuthURLParam("code_challenge", codeChallenge),
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)
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return &Authorization{
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url: authUrl,
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state: state,
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codeVerifier: codeVerifier,
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}
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}
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