Simple S3-like server for development purposes, written in Go
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+36
+1
gos3dir.go
+1
gos3dir.go
···
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51
// for now it assumes path style
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http.HandleFunc("GET /{$}", srv.ls)
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http.HandleFunc("GET /{bucket}", srv.ls)
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http.HandleFunc("GET /{bucket}/{key...}", srv.cpGet)
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http.HandleFunc("PUT /{bucket}", srv.mb)
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http.HandleFunc("PUT /{bucket}/{key...}", srv.cpPut)
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http.HandleFunc("DELETE /{bucket}", srv.rb)
+35
server.go
+35
server.go
···
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3
import (
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4
"encoding/xml"
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5
"errors"
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+
"fmt"
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"io"
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"io/fs"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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)
···
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Contents: objects,
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}
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return result, nil
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+
}
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+
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func (s *server) cpGet(w http.ResponseWriter, r *http.Request) {
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root, err := os.OpenRoot(s.rootDir)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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defer root.Close()
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+
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path := filepath.Join(r.PathValue("bucket"), r.PathValue("key"))
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fileInfo, err := root.Stat(path)
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if err != nil {
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if errors.Is(err, fs.ErrNotExist) {
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http.Error(w, fmt.Sprintf("Key %s does not exist", r.PathValue("key")), http.StatusNotFound)
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} else {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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return
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}
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+
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w.Header().Set("Content-Type", "binary/octet-stream")
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w.Header().Set("Content-Length", strconv.FormatInt(fileInfo.Size(), 10))
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w.Header().Set("Last-Modified", fileInfo.ModTime().Format(time.RFC3339))
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+
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if r.Method == http.MethodHead {
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return
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+
}
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+
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+
file, err := root.Open(path)
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+
if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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io.Copy(w, file)
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}
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func (s *server) ls(w http.ResponseWriter, r *http.Request) {