/
actionClamav.go
119 lines (102 loc) · 3.03 KB
/
actionClamav.go
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// Copyright 2020 Juergen Enge, info-age GmbH, Basel. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package indexer
import (
"bufio"
"bytes"
"context"
"emperror.dev/errors"
"io"
"net/url"
"os/exec"
"strings"
"time"
)
type ActionClamAV struct {
name string
clamav string
wsl bool
timeout time.Duration
caps ActionCapability
server *Server
}
func (ac *ActionClamAV) DoV2(filename string) (*ResultV2, error) {
//TODO implement me
panic("implement me")
}
func (ac *ActionClamAV) CanHandle(contentType string, filename string) bool {
return true
}
func (ac *ActionClamAV) Stream(contentType string, reader io.Reader, filename string) (*ResultV2, error) {
return nil, errors.New("clamav does not support streaming")
}
func NewActionClamAV(clamav string, wsl bool, timeout time.Duration, server *Server, ad *ActionDispatcher) Action {
var caps = ACTFILEFULL
ac := &ActionClamAV{name: "clamav", clamav: clamav, wsl: wsl, timeout: timeout, caps: caps, server: server}
ad.RegisterAction(ac)
return ac
}
func (ac *ActionClamAV) GetWeight() uint {
return 100
}
func (ac *ActionClamAV) GetCaps() ActionCapability {
return ac.caps
}
func (ac *ActionClamAV) GetName() string {
return ac.name
}
func (ac *ActionClamAV) Do(uri *url.URL, contentType string, width *uint, height *uint, duration *time.Duration, checksums map[string]string) (interface{}, []string, []string, error) {
var filename string
var err error
// local files need some adjustments...
if uri.Scheme == "file" {
filename, err = ac.server.fm.Get(uri)
if err != nil {
return nil, nil, nil, errors.Wrapf(err, "invalid file uri %s", uri.String())
}
if ac.wsl {
filename = pathToWSL(filename)
}
} else {
filename = uri.String()
}
cmdparam := []string{"--no-summary", filename}
cmdfile := ac.clamav
if ac.wsl {
cmdparam = append([]string{cmdfile}, cmdparam...)
cmdfile = "wsl"
}
var out bytes.Buffer
ctx, cancel := context.WithTimeout(context.Background(), ac.timeout)
defer cancel()
cmd := exec.CommandContext(ctx, cmdfile, cmdparam...)
cmd.Stdout = &out
err = cmd.Run()
if err != nil {
return nil, nil, nil, errors.Wrapf(err, "error executing (%s %s): %v", cmdfile, cmdparam, out.String())
}
result := make(map[string]string)
sc := bufio.NewScanner(strings.NewReader(out.String()))
for sc.Scan() {
line := sc.Text()
parts := strings.Split(line, ":")
if len(parts) == 2 {
result[strings.TrimSpace(parts[0])] = strings.TrimSpace(parts[1])
}
}
return result, nil, nil, nil
}
var (
_ Action = &ActionClamAV{}
)