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2f33fe86f5
* Update dependencies and build to go1.22 * Fix api changes wrt to dependencies * Update golangci config
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
// SPDX-License-Identifier: MIT
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// SPDX-FileCopyrightText: © 2015 LabStack LLC and Echo contributors
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package echo
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import (
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"errors"
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"io"
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"io/fs"
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"net/http"
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"path/filepath"
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)
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func (c *context) File(file string) error {
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return fsFile(c, file, c.echo.Filesystem)
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}
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// FileFS serves file from given file system.
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//
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// When dealing with `embed.FS` use `fs := echo.MustSubFS(fs, "rootDirectory") to create sub fs which uses necessary
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// prefix for directory path. This is necessary as `//go:embed assets/images` embeds files with paths
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// including `assets/images` as their prefix.
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func (c *context) FileFS(file string, filesystem fs.FS) error {
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return fsFile(c, file, filesystem)
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}
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func fsFile(c Context, file string, filesystem fs.FS) error {
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f, err := filesystem.Open(file)
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if err != nil {
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return ErrNotFound
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}
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defer f.Close()
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fi, _ := f.Stat()
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if fi.IsDir() {
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file = filepath.ToSlash(filepath.Join(file, indexPage)) // ToSlash is necessary for Windows. fs.Open and os.Open are different in that aspect.
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f, err = filesystem.Open(file)
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if err != nil {
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return ErrNotFound
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}
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defer f.Close()
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if fi, err = f.Stat(); err != nil {
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return err
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}
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}
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ff, ok := f.(io.ReadSeeker)
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if !ok {
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return errors.New("file does not implement io.ReadSeeker")
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}
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http.ServeContent(c.Response(), c.Request(), fi.Name(), fi.ModTime(), ff)
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return nil
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}
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