mirror of https://github.com/status-im/consul.git
39 lines
1001 B
Go
39 lines
1001 B
Go
package oidcauth
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import (
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"net/url"
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"github.com/hashicorp/consul/internal/go-sso/oidcauth/internal/strutil"
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)
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// validRedirect checks whether uri is in allowed using special handling for loopback uris.
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// Ref: https://tools.ietf.org/html/rfc8252#section-7.3
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func validRedirect(uri string, allowed []string) bool {
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inputURI, err := url.Parse(uri)
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if err != nil {
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return false
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}
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// if uri isn't a loopback, just string search the allowed list
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if !strutil.StrListContains([]string{"localhost", "127.0.0.1", "::1"}, inputURI.Hostname()) {
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return strutil.StrListContains(allowed, uri)
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}
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// otherwise, search for a match in a port-agnostic manner, per the OAuth RFC.
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inputURI.Host = inputURI.Hostname()
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for _, a := range allowed {
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allowedURI, err := url.Parse(a)
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if err != nil {
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return false // shouldn't happen due to (*Config).Validate checks
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}
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allowedURI.Host = allowedURI.Hostname()
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if inputURI.String() == allowedURI.String() {
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return true
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}
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}
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return false
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}
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