Add ability to encrypt files

3 files changed, 76 insertions, 0 deletions

diff --git a/cmd/goaes/commands/decrypt.go b/cmd/goaes/commands/decrypt.go
new file mode 100644
index 0000000..f89da22
--- /dev/null
+++ b/cmd/goaes/commands/decrypt.go
@@ -0,0 +1,12 @@
+package commands
+
+import (
+	"context"
+
+	"github.com/urfave/cli/v3"
+)
+
+func Decrypt(ctx context.Context, cmd *cli.Command) error {
+
+	return nil
+}
diff --git a/cmd/goaes/commands/encrypt.go b/cmd/goaes/commands/encrypt.go
new file mode 100644
index 0000000..0c5d578
--- /dev/null
+++ b/cmd/goaes/commands/encrypt.go
@@ -0,0 +1,38 @@
+package commands
+
+import (
+	"bytes"
+	"context"
+	"encoding/gob"
+	"os"
+
+	"github.com/nerdsec/goaes/internal"
+	"github.com/urfave/cli/v3"
+)
+
+func Encrypt(ctx context.Context, cmd *cli.Command) error {
+	source := cmd.String("source")
+	destination := cmd.String("destination")
+
+	plaintext, err := os.ReadFile(source)
+	if err != nil {
+		return err
+	}
+
+	payload, err := internal.Encrypt(plaintext)
+	if err != nil {
+		return err
+	}
+
+	var dataBuffer bytes.Buffer
+	enc := gob.NewEncoder(&dataBuffer)
+
+	err = enc.Encode(payload)
+	if err != nil {
+		return err
+	}
+
+	os.WriteFile(destination, dataBuffer.Bytes(), 0666)
+
+	return nil
+}
diff --git a/cmd/goaes/main.go b/cmd/goaes/main.go
index 30f1d1d..f0b4368 100644
--- a/cmd/goaes/main.go
+++ b/cmd/goaes/main.go
@@ -23,6 +23,32 @@ func main() {
 				Usage:   "Generate a base64 encoded key",
 				Action:  commands.Generate,
 			},
+			{
+				Name:    "encrypt",
+				Aliases: []string{"e"},
+				Usage:   "Encrypt a file",
+				Action:  commands.Encrypt,
+				Flags: []cli.Flag{
+					&cli.StringFlag{
+						Name:     "source",
+						Aliases:  []string{"s"},
+						Usage:    "source file to encrypt",
+						Required: true,
+					},
+					&cli.StringFlag{
+						Name:     "destination",
+						Aliases:  []string{"d"},
+						Usage:    "where to write the encrypted file",
+						Required: true,
+					},
+				},
+			},
+			{
+				Name:    "decrypt",
+				Aliases: []string{"d"},
+				Usage:   "Decrypt a file",
+				Action:  commands.Decrypt,
+			},
 		},
 	}