2024-04-28 13:08:41 +02:00
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// SPDX-License-Identifier: MIT
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// SPDX-FileCopyrightText: © 2015 LabStack LLC and Echo contributors
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2023-03-17 13:19:17 +01:00
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package middleware
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import (
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"os"
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)
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// We ignore these errors as there could be handler that matches request path.
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//
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// As of Go 1.20 filepath.Clean has different behaviour on OS related filesystems so we need to use path.Clean
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// on Windows which has some caveats. The Open methods might return different errors than earlier versions and
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// as of 1.20 path checks are more strict on the provided path and considers [UNC](https://en.wikipedia.org/wiki/Path_(computing)#UNC)
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// paths with missing host etc parts as invalid. Previously it would result you `fs.ErrNotExist`.
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//
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// For 1.20@Windows we need to treat those errors the same as `fs.ErrNotExists` so we can continue handling
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// errors in the middleware/handler chain. Otherwise we might end up with status 500 instead of finding a route
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// or return 404 not found.
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func isIgnorableOpenFileError(err error) bool {
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if os.IsNotExist(err) {
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return true
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}
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errTxt := err.Error()
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return errTxt == "http: invalid or unsafe file path" || errTxt == "invalid path"
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}
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