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funcs.go
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funcs.go
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package tpl
import (
"context"
"crypto/md5"
"crypto/sha1"
"fmt"
"text/template"
"github.com/jsimonetti/pwscheme/md5crypt"
"github.com/jsimonetti/pwscheme/ssha"
"github.com/jsimonetti/pwscheme/ssha256"
"github.com/jsimonetti/pwscheme/ssha512"
"github.com/pkg/errors"
)
// These constants defined the template function names used
const (
FuncMd5sum = "md5sum"
FuncSha1sum = "sha1sum"
FuncMd5Crypt = "md5crypt"
FuncSSHA = "ssha"
FuncSSHA256 = "ssha256"
FuncSSHA512 = "ssha512"
FuncGet = "get"
FuncGetPassword = "getpw"
FuncGetValue = "getval"
)
func md5sum() func(...string) (string, error) {
return func(s ...string) (string, error) {
return fmt.Sprintf("%x", md5.Sum([]byte(s[0]))), nil
}
}
func sha1sum() func(...string) (string, error) {
return func(s ...string) (string, error) {
return fmt.Sprintf("%x", sha1.Sum([]byte(s[0]))), nil
}
}
func md5cryptFunc() func(...string) (string, error) {
return func(s ...string) (string, error) {
return md5crypt.Generate(s[0], 4)
}
}
func sshaFunc() func(...string) (string, error) {
return func(s ...string) (string, error) {
return ssha.Generate(s[0], 4)
}
}
func ssha256Func() func(...string) (string, error) {
return func(s ...string) (string, error) {
return ssha256.Generate(s[0], 4)
}
}
func ssha512Func() func(...string) (string, error) {
return func(s ...string) (string, error) {
return ssha512.Generate(s[0], 4)
}
}
func get(ctx context.Context, kv kvstore) func(...string) (string, error) {
return func(s ...string) (string, error) {
if len(s) < 1 {
return "", nil
}
if kv == nil {
return "", errors.Errorf("KV is nil")
}
sec, err := kv.Get(ctx, s[0])
if err != nil {
return err.Error(), nil
}
buf, err := sec.Bytes()
if err != nil {
return err.Error(), nil
}
return string(buf), nil
}
}
func getPassword(ctx context.Context, kv kvstore) func(...string) (string, error) {
return func(s ...string) (string, error) {
if len(s) < 1 {
return "", nil
}
if kv == nil {
return "", errors.Errorf("KV is nil")
}
sec, err := kv.Get(ctx, s[0])
if err != nil {
return err.Error(), nil
}
return sec.Password(), nil
}
}
func getValue(ctx context.Context, kv kvstore) func(...string) (string, error) {
return func(s ...string) (string, error) {
if len(s) < 2 {
return "", nil
}
if kv == nil {
return "", errors.Errorf("KV is nil")
}
sec, err := kv.Get(ctx, s[0])
if err != nil {
return err.Error(), nil
}
val, err := sec.Value(s[1])
if err != nil {
return err.Error(), nil
}
return val, nil
}
}
func funcMap(ctx context.Context, kv kvstore) template.FuncMap {
return template.FuncMap{
FuncGet: get(ctx, kv),
FuncGetPassword: getPassword(ctx, kv),
FuncGetValue: getValue(ctx, kv),
FuncMd5sum: md5sum(),
FuncSha1sum: sha1sum(),
FuncMd5Crypt: md5cryptFunc(),
FuncSSHA: sshaFunc(),
FuncSSHA256: ssha256Func(),
FuncSSHA512: ssha512Func(),
}
}