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Check code_challenge_methods_supported too
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-2
src/utils/oauth-pkce.js
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src/utils/oauth-pkce.js
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return base64urlencode(hashed);
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}
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// If https://mastodon.social/.well-known/oauth-authorization-server exists, means support PKCE
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// If /.well-known/oauth-authorization-server exists and code_challenge_methods_supported includes "S256", means support PKCE
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export async function supportsPKCE({ instanceURL }) {
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if (!instanceURL) return false;
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try {
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`https://${instanceURL}/.well-known/oauth-authorization-server`,
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);
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if (!res.ok || res.status !== 200) return false;
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return true;
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const json = await res.json();
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if (json.code_challenge_methods_supported?.includes('S256')) return true;
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return false;
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} catch (e) {
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return false;
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}