53 lines
945 B
Go
53 lines
945 B
Go
package maymoon
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import (
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"sourcecode.social/reiver/go-errhttp"
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"errors"
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"io/fs"
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)
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var (
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errNilFile = errors.New("nil file")
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errNilFileSystem = errors.New("nil file-system")
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)
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func openFile(filesystem fs.FS, requestpath string) (fs.File, error) {
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if nil == filesystem {
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/////////////// RETURN
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return nil, errhttp.InternalServerErrorWrap(errNilFileSystem)
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}
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var relpath string
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{
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var requestpath0 byte = requestpath[0]
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if '/' == requestpath0 {
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relpath = requestpath[1:]
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}
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}
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var file fs.File
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{
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var err error
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file, err = filesystem.Open(relpath)
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if nil != err {
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if errors.Is(err, fs.ErrNotExist) {
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/////////////////////////////// RETURN
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return nil, errhttp.ErrNotFound
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}
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/////////////////////// RETURN
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return nil, errhttp.InternalServerErrorWrap(err)
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}
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if nil == file {
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/////////////////////// RETURN
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return nil, errhttp.InternalServerErrorWrap(errNilFile)
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}
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}
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return file, nil
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}
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