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moby--moby/api/server/form.go

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package server
import (
"fmt"
"net/http"
"path/filepath"
"strconv"
"strings"
)
func boolValue(r *http.Request, k string) bool {
s := strings.ToLower(strings.TrimSpace(r.FormValue(k)))
return !(s == "" || s == "0" || s == "no" || s == "false" || s == "none")
}
// boolValueOrDefault returns the default bool passed if the query param is
// missing, otherwise it's just a proxy to boolValue above
func boolValueOrDefault(r *http.Request, k string, d bool) bool {
if _, ok := r.Form[k]; !ok {
return d
}
return boolValue(r, k)
}
func int64ValueOrZero(r *http.Request, k string) int64 {
val, err := strconv.ParseInt(r.FormValue(k), 10, 64)
if err != nil {
return 0
}
return val
}
type archiveOptions struct {
name string
path string
}
func archiveFormValues(r *http.Request, vars map[string]string) (archiveOptions, error) {
if vars == nil {
return archiveOptions{}, fmt.Errorf("Missing parameter")
}
if err := parseForm(r); err != nil {
return archiveOptions{}, err
}
name := vars["name"]
path := filepath.FromSlash(r.Form.Get("path"))
switch {
case name == "":
return archiveOptions{}, fmt.Errorf("bad parameter: 'name' cannot be empty")
case path == "":
return archiveOptions{}, fmt.Errorf("bad parameter: 'path' cannot be empty")
}
return archiveOptions{name, path}, nil
}