Modernize

.circleci/config.yml

@@ -2,14 +2,13 @@ version: 2
 jobs:
   build:
     docker:
-      - image: golang:1.10
-    working_directory: /go/src/zondax/ledger-goclient
+      - image: golang:1.14
+    environment:
+      GO111MODULE: "on"
+    working_directory: /ledger-go
     steps:
       - checkout
-      - run: go get -v -u github.com/golang/dep/cmd/dep
-      - run: dep ensure -v
-      - run: go build ledger.go apduWrapper.go
-      - run: go test
+      - run: go test -tags ledger_mock
 workflows:
   version: 2
   build_all:

.gitignore

@@ -17,7 +17,6 @@
 *.dll
 
 # Fortran module files
-*.mod
 *.smod
 
 # Compiled Static libraries

Makefile

@@ -0,0 +1,2 @@
+test:
+	go test -tags ledger_mock

README.md

@@ -1,26 +1,14 @@
 # ledger-go
 
-[![CircleCI](https://circleci.com/gh/ZondaX/ledger-go.svg?style=svg)](https://circleci.com/gh/ZondaX/ledger-go)
-[![Build status](https://ci.appveyor.com/api/projects/status/m4wn7kuuuu98b3uh/branch/master?svg=true)](https://ci.appveyor.com/project/zondax/ledger-go/branch/master)
-[![Build Status](https://travis-ci.org/ZondaX/ledger-goclient.svg?branch=master)](https://travis-ci.org/ZondaX/ledger-go)
+[![CircleCI](https://circleci.com/gh/Zondax/ledger-go.svg?style=shield)](https://circleci.com/gh/ZondaX/ledger-go)
 
 This project provides a library to connect to ledger devices. 
 
-It handles USB (HID) communication and APDU encapsulation.
+It handles APDU encapsulation, Zemu and USB (HID) communication.
 
 Linux, OSX and Windows are supported.
 
-# Get source
-Apart from cloning, be sure you install dep dependency management tool
-https://github.com/golang/dep
-
-## Setup
-Update dependencies using the following:
-```
-dep ensure 
-```
-
-# Building
-```
+## Building
+```bash
 go build
 ```

apduWrapper.go

@@ -18,11 +18,48 @@ package ledger_go
 
 import (
 	"encoding/binary"
+	"fmt"
 	"github.com/pkg/errors"
 )
 
 var codec = binary.BigEndian
 
+func ErrorMessage(errorCode uint16) string {
+	switch errorCode {
+	// FIXME: Code and description don't match for 0x6982 and 0x6983 based on
+	// apdu spec: https://www.eftlab.co.uk/index.php/site-map/knowledge-base/118-apdu-response-list
+
+	case 0x6400:
+		return "[APDU_CODE_EXECUTION_ERROR] No information given (NV-Ram not changed)"
+	case 0x6700:
+		return "[APDU_CODE_WRONG_LENGTH] Wrong length"
+	case 0x6982:
+		return "[APDU_CODE_EMPTY_BUFFER] Security condition not satisfied"
+	case 0x6983:
+		return "[APDU_CODE_OUTPUT_BUFFER_TOO_SMALL] Authentication method blocked"
+	case 0x6984:
+		return "[APDU_CODE_DATA_INVALID] Referenced data reversibly blocked (invalidated)"
+	case 0x6985:
+		return "[APDU_CODE_CONDITIONS_NOT_SATISFIED] Conditions of use not satisfied"
+	case 0x6986:
+		return "[APDU_CODE_COMMAND_NOT_ALLOWED] Command not allowed (no current EF)"
+	case 0x6A80:
+		return "[APDU_CODE_BAD_KEY_HANDLE] The parameters in the data field are incorrect"
+	case 0x6B00:
+		return "[APDU_CODE_INVALID_P1P2] Wrong parameter(s) P1-P2"
+	case 0x6D00:
+		return "[APDU_CODE_INS_NOT_SUPPORTED] Instruction code not supported or invalid"
+	case 0x6E00:
+		return "[APDU_CODE_CLA_NOT_SUPPORTED] Class not supported"
+	case 0x6F00:
+		return "APDU_CODE_UNKNOWN"
+	case 0x6F01:
+		return "APDU_CODE_SIGN_VERIFY_ERROR"
+	default:
+		return fmt.Sprintf("Error code: %04x", errorCode)
+	}
+}
+
 func SerializePacket(
 	channel uint16,
 	command []byte,