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validate.go
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validate.go
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// Copyright (c) 2019 PT Defender Nusa Semesta and contributors, All rights reserved.
//
// This file is part of Dsiem.
//
// Dsiem is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation version 3 of the License.
//
// Dsiem is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Dsiem. If not, see <https://www.gnu.org/licenses/>.
package server
import (
"encoding/json"
"errors"
"regexp"
"strings"
"github.com/defenxor/dsiem/internal/pkg/dsiem/asset"
"github.com/defenxor/dsiem/internal/pkg/dsiem/siem"
xc "github.com/defenxor/dsiem/internal/pkg/dsiem/xcorrelator"
)
func isCfgFileNameValid(filename string) (ok bool) {
r, err := regexp.Compile(`[a-zA-Z0-9_-]+.json`)
if err != nil {
return
}
ok = r.MatchString(filename)
return
}
func isUploadContentValid(filename string, content []byte) (err error) {
e := errors.New("content doesn't have a valid entry")
switch {
case strings.HasPrefix(filename, "assets_"):
var v asset.NetworkAssets
err = json.Unmarshal(content, &v)
if err == nil && len(v.NetworkAssets) == 0 {
err = e
}
case strings.HasPrefix(filename, "directives_"):
var v siem.Directives
err = json.Unmarshal(content, &v)
if err == nil && len(v.Dirs) == 0 {
err = e
}
case strings.HasPrefix(filename, "intel_"):
var v xc.IntelSources
err = json.Unmarshal(content, &v)
if err == nil && len(v.IntelSources) == 0 {
err = e
}
case strings.HasPrefix(filename, "vuln_"):
var v xc.VulnSources
err = json.Unmarshal(content, &v)
if err == nil && len(v.VulnSources) == 0 {
err = e
}
default:
}
return
}