54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
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var Grant = require('../grant')
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module.exports = function (args = {}) {
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var grant = Grant(args.config ? args : {config: args})
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app.config = grant.config
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var regex = new RegExp([
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'^',
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app.config.defaults.prefix,
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/(?:\/([^\/\?]+?))/.source, // /:provider
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/(?:\/([^\/\?]+?))?/.source, // /:override?
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/(?:\/$|\/?\?+.*)?$/.source, // querystring
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].join(''), 'i')
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async function app (req, res, next) {
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var match = regex.exec(req.originalUrl)
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if (!match) {
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return next()
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}
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if (!req.session) {
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next(new Error('Grant: mount session middleware first'))
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return
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}
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if (req.method === 'POST' && !req.body) {
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next(new Error('Grant: mount body parser middleware first'))
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return
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}
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var {location, session, state} = await grant({
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method: req.method,
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params: {provider: match[1], override: match[2]},
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query: req.query,
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body: req.body,
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state: res.locals.grant,
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session: req.session.grant,
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})
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req.session.grant = session
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res.locals.grant = state
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location ? redirect(req, res, location) : next()
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}
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return app
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}
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var redirect = (req, res, location) =>
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typeof req.session.save === 'function' &&
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Object.getPrototypeOf(req.session).save.length
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? req.session.save(() => res.redirect(location))
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: res.redirect(location)
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