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* Able to authenticate user against IndieAuth. For #1273 * WIP server indieauth endpoint. For https://github.com/owncast/owncast/issues/1272 * Add migration to remove access tokens from user * Add authenticated bool to user for display purposes * Add indieauth modal and auth flair to display names. For #1273 * Validate URLs and display errors * Renames, cleanups * Handle relative auth endpoint paths. Add error handling for missing redirects. * Disallow using display names in use by registered users. Closes #1810 * Verify code verifier via code challenge on callback * Use relative path to authorization_endpoint * Post-rebase fixes * Use a timestamp instead of a bool for authenticated * Propertly handle and display error in modal * Use auth'ed timestamp to derive authenticated flag to display in chat * don't redirect unless a URL is present avoids redirecting to `undefined` if there was an error * improve error message if owncast server URL isn't set * fix IndieAuth PKCE implementation use SHA256 instead of SHA1, generates a longer code verifier (must be 43-128 chars long), fixes URL-safe SHA256 encoding * return real profile data for IndieAuth response * check the code verifier in the IndieAuth server * Linting * Add new chat settings modal anad split up indieauth ui * Remove logging error * Update the IndieAuth modal UI. For #1273 * Add IndieAuth repsonse error checking * Disable IndieAuth client if server URL is not set. * Add explicit error messages for specific error types * Fix bad logic * Return OAuth-keyed error responses for indieauth server * Display IndieAuth error in plain text with link to return to main page * Remove redundant check * Add additional detail to error * Hide IndieAuth details behind disclosure details * Break out migration into two steps because some people have been runing dev in production * Add auth option to user dropdown Co-authored-by: Aaron Parecki <aaron@parecki.com>
34 lines
901 B
Go
34 lines
901 B
Go
package indieauth
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import (
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"math/rand"
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"time"
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"unsafe"
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)
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const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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const (
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letterIdxBits = 6 // 6 bits to represent a letter index
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letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
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letterIdxMax = 63 / letterIdxBits // # of letter indices fitting in 63 bits
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)
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var src = rand.NewSource(time.Now().UnixNano())
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func randString(n int) string {
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b := make([]byte, n)
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// A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
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for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
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if remain == 0 {
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cache, remain = src.Int63(), letterIdxMax
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}
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if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
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b[i] = letterBytes[idx]
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i--
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}
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cache >>= letterIdxBits
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remain--
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}
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return *(*string)(unsafe.Pointer(&b)) // nolint:gosec
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}
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