87 lines
1.6 KiB
Go
87 lines
1.6 KiB
Go
package main
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"os"
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"github.com/safing/portbase/container"
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"github.com/safing/jess"
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"github.com/spf13/cobra"
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)
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func init() {
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rootCmd.AddCommand(verifyCmd)
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}
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var (
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verifyCmdHelp = "usage: jess verify <file>"
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verifyCmd = &cobra.Command{
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Use: "verify",
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Short: "verify a file",
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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// check args
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if len(args) != 1 {
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return errors.New(verifyCmdHelp)
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}
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// check filenames
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filename := args[0]
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// check input file
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if filename != "-" {
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fileInfo, err := os.Stat(filename)
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if err != nil {
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return err
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}
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if fileInfo.Size() > warnFileSize {
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confirmed, err := confirm("Input file is really big (%s) and jess needs to load it fully to memory, continue?", true)
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if err != nil {
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return err
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}
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if !confirmed {
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return nil
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}
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}
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}
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// load file
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var data []byte
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if filename == "-" {
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data, err = ioutil.ReadAll(os.Stdin)
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} else {
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data, err = ioutil.ReadFile(filename)
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}
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if err != nil {
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return err
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}
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// parse file
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letter, err := jess.LetterFromFileFormat(container.New(data))
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if err != nil {
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return err
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}
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// adjust requirements
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if requirements == nil {
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requirements = jess.NewRequirements().
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Remove(jess.Confidentiality).
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Remove(jess.Integrity).
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Remove(jess.RecipientAuthentication)
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}
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// verify
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err = letter.Verify(requirements, trustStore)
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if err != nil {
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return err
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}
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// success
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fmt.Println("ok")
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return nil
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},
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}
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)
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