/
dfs_post.go
73 lines (62 loc) · 1.88 KB
/
dfs_post.go
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package routing
import (
"fmt"
"net/http"
"os"
"strings"
"github.com/freakmaxi/kertish-dfs/basics/src/errors"
)
func (d *dfsRouter) handlePost(w http.ResponseWriter, r *http.Request) {
applyTo := r.Header.Get("X-Apply-To")
requestedPaths, _, err := d.describeXPath(r.Header.Get("X-Path"))
if !d.validateApplyTo(applyTo) || err != nil || len(requestedPaths) > 1 {
w.WriteHeader(422)
return
}
switch applyTo {
case "folder":
if err := d.dfs.CreateFolder(requestedPaths[0]); err != nil {
if err == os.ErrExist {
w.WriteHeader(409)
return
} else {
w.WriteHeader(500)
}
fmt.Printf("ERROR: Post request for %s (%s) is failed. %s\n", requestedPaths[0], applyTo, err.Error())
return
}
case "file":
allowEmptyHeader := strings.ToLower(r.Header.Get("X-Allow-Empty"))
allowEmpty := len(allowEmptyHeader) > 0 && (strings.Compare(allowEmptyHeader, "1") == 0 || strings.Compare(allowEmptyHeader, "true") == 0)
contentType := r.Header.Get("Content-Type")
if len(contentType) == 0 {
w.WriteHeader(422)
return
}
contentLength := r.ContentLength
if !allowEmpty && contentLength == -1 {
w.WriteHeader(411)
return
}
if contentLength == -1 {
contentLength = 0
}
overwriteHeader := strings.ToLower(r.Header.Get("X-Overwrite"))
overwrite := len(overwriteHeader) > 0 && (strings.Compare(overwriteHeader, "1") == 0 || strings.Compare(overwriteHeader, "true") == 0)
if err := d.dfs.CreateFile(requestedPaths[0], contentType, uint64(contentLength), r.Body, overwrite); err != nil {
if err == os.ErrExist {
w.WriteHeader(409)
return
} else if err == os.ErrInvalid {
w.WriteHeader(422)
} else if err == errors.ErrNoSpace {
w.WriteHeader(507)
} else {
w.WriteHeader(500)
}
fmt.Printf("ERROR: Post request for %s (%s) is failed. %s\n", requestedPaths[0], applyTo, err.Error())
return
}
}
w.WriteHeader(202)
}