inital working commit

commands/decrypt.go

@@ -0,0 +1,53 @@
+package commands
+
+import (
+	"fmt"
+	"github.com/siteworxpro/rsa-file-encryption/crypt"
+	"github.com/siteworxpro/rsa-file-encryption/printer"
+	"os"
+)
+
+func Decrypt(privateKeyPath string, filePath string, outFile string, force bool) error {
+
+	if _, err := os.Stat(privateKeyPath); err != nil {
+		return err
+	}
+
+	if _, err := os.Stat(filePath); err != nil {
+		return err
+	}
+
+	if _, err := os.Stat(outFile); err == nil && !force {
+		return fmt.Errorf("decrypted file already exists (--force, -F) to overwrite")
+	}
+
+	p := printer.NewPrinter()
+	encryptedFile := crypt.EncryptedFile{}
+
+	p.LogInfo("Reading Private Key...")
+	err := encryptedFile.OsReadPrivateKey(privateKeyPath)
+	if err != nil {
+		return err
+	}
+
+	p.LogInfo("Reading and decrypting file...")
+	c := make(chan bool)
+	go p.LogSpinner("Decrypting...", c)
+
+	err = encryptedFile.OsReadCipherTextFile(filePath)
+	if err != nil {
+		return err
+	}
+
+	c <- true
+
+	p.LogInfo("Writing un-encrypted file...")
+	err = encryptedFile.WriteDecryptedFileToDisk(outFile)
+	if err != nil {
+		return err
+	}
+
+	p.LogSuccess("Done!")
+
+	return nil
+}