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fix: support redirect-to header to resolve Envoy proxy rejection (#2833) #2834

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fix: support redirect-to header to resolve Envoy proxy rejection (#2833) #2834

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10 changes: 8 additions & 2 deletions internal/utilities/request.go
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Original file line number Diff line number Diff line change
Expand Up @@ -140,13 +140,19 @@ func IsRedirectURLValid(config *conf.GlobalConfiguration, redirectURL string) bo

// getRedirectTo tries extract redirect url from header or from query params
func getRedirectTo(r *http.Request) (reqref string) {
reqref = r.Header.Get("redirect_to")
reqref = r.Header.Get("redirect-to")
if reqref == "" {
reqref = r.Header.Get("redirect_to")
}
if reqref != "" {
return
}

if err := r.ParseForm(); err == nil {
reqref = r.Form.Get("redirect_to")
reqref = r.Form.Get("redirect-to")
if reqref == "" {
reqref = r.Form.Get("redirect_to")
}
}

return
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10 changes: 10 additions & 0 deletions internal/utilities/request_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -333,6 +333,16 @@ func TestGetReferrer(t *tst.T) {
r := httptest.NewRequest("GET", "http://localhost?redirect_to="+c.redirectURL, nil)
referrer := GetReferrer(r, &config)
require.Equal(t, c.expected, referrer)

r2 := httptest.NewRequest("GET", "http://localhost", nil)
r2.Header.Set("redirect-to", c.redirectURL)
referrer2 := GetReferrer(r2, &config)
require.Equal(t, c.expected, referrer2)

r3 := httptest.NewRequest("GET", "http://localhost", nil)
r3.Header.Set("redirect_to", c.redirectURL)
referrer3 := GetReferrer(r3, &config)
require.Equal(t, c.expected, referrer3)
})
}
}