Add basic 2FA (code from https://github.com/pcloudcom/console-client/pull/163) (#86)

Co-authored-by: Florian Friedrich <friedrich@procster.de>

main.cpp

@@ -45,6 +45,7 @@ int main(int argc, char **argv) {
   std::cout << "pCloud console client (" << version << ")" << std::endl;
   std::string username = "";
   std::string password = "";
+  std::string tfa_code = "";
   bool daemon = false;
   bool commands = false;
   bool commands_only = false;
@@ -52,15 +53,22 @@ int main(int argc, char **argv) {
   bool passwordsw = false;
   bool save_pass = false;
   bool crypto = false;
+  bool trusted_device = false;
   po::variables_map vm;
 
   try {
     po::options_description desc("Allowed options");
     desc.add_options()("help,h", "Show this help message.")(
         "username,u", po::value<std::string>(&username),
-        "pCloud account name.")("password,p", po::bool_switch(&passwordsw),
-                                "Ask for pCloud account password.")(
-        "crypto,c", po::bool_switch(&crypto), "Ask for crypto password.")(
+        "pCloud account name.")(
+        "password,p", po::bool_switch(&passwordsw),
+        "Ask for pCloud account password.")(
+        "tfa_code,t", po::value<std::string>(&tfa_code),
+        "pCloud tfa code")(
+        "trusted_device,r", po::bool_switch(&trusted_device),
+        "Trust this device.")(
+        "crypto,c", po::bool_switch(&crypto),
+        "Ask for crypto password.")(
         "passascrypto,y", po::value<std::string>(),
         "User password is the same as crypto password.")(
         "daemonize,d", po::bool_switch(&daemon),
@@ -113,6 +121,8 @@ int main(int argc, char **argv) {
     if (passwordsw) {
       cc::clibrary::pclsync_lib::get_lib().get_pass_from_console();
     }
+    cc::clibrary::pclsync_lib::get_lib().set_tfa_code(tfa_code);
+    cc::clibrary::pclsync_lib::get_lib().set_trusted_device(trusted_device);
     if (crypto) {
       cc::clibrary::pclsync_lib::get_lib().setup_crypto_ = true;
       if (vm.count("passascrypto")) {

pclsync_lib.cpp

@@ -54,6 +54,10 @@ clib::pclsync_lib::pclsync_lib()
 
 clib::pclsync_lib::~pclsync_lib() {}
 
+const bool clib::pclsync_lib::get_trusted_device() { return trusted_device_; };
+
+const std::string &clib::pclsync_lib::get_tfa_code() { return tfa_code_; }
+
 const std::string &clib::pclsync_lib::get_username() { return username_; }
 
 const std::string &clib::pclsync_lib::get_password() { return password_; }
@@ -64,6 +68,12 @@ const std::string &clib::pclsync_lib::get_crypto_pass() {
 
 const std::string &clib::pclsync_lib::get_mount() { return mount_; }
 
+void clib::pclsync_lib::set_trusted_device(bool arg) {
+  trusted_device_ = arg;
+}
+void clib::pclsync_lib::set_tfa_code(const std::string &arg) {
+  tfa_code_ = arg;
+}
 void clib::pclsync_lib::set_username(const std::string &arg) {
   username_ = arg;
 }
@@ -93,6 +103,18 @@ void clib::pclsync_lib::get_pass_from_console() {
   do_get_pass_from_console(password_);
 }
 
+void clib::pclsync_lib::get_tfa_code_from_console()
+{
+  if (daemon_) {
+    std::cout << "Not able to read 2fa code when started as daemon." 
+              << std::endl;
+    exit(1);
+  }
+  std::cout << "Please enter 2fa code" 
+            << std::endl;
+  getline(std::cin, tfa_code_);
+}
+
 void clib::pclsync_lib::get_cryptopass_from_console() {
   do_get_pass_from_console(crypto_pass_);
 }
@@ -233,6 +255,10 @@ static const char *status2string(uint32_t status) {
     return "USER_MISMATCH";
   case PSTATUS_ACCOUT_EXPIRED:
     return "ACCOUT_EXPIRED";
+  case PSTATUS_TFA_REQUIRED:
+    return "TFA_REQUIRED";
+  case PSTATUS_BAD_TFA_CODE:
+    return "BAD_TFA_CODE";
   default:
     return "Unrecognized status";
   }
@@ -256,6 +282,14 @@ static void status_change(pstatus_t *status) {
                         clib::pclsync_lib::get_lib().get_password().c_str(),
                         (int)clib::pclsync_lib::get_lib().save_pass_);
     std::cout << "logging in" << std::endl;
+  } else if (status->status == PSTATUS_TFA_REQUIRED) {
+    if (clib::pclsync_lib::get_lib().get_tfa_code().empty()) {
+      clib::pclsync_lib::get_lib().get_tfa_code_from_console();
+    }
+
+    psync_tfa_set_code(clib::pclsync_lib::get_lib().get_tfa_code().c_str(),
+                       clib::pclsync_lib::get_lib().get_trusted_device(), 
+                       0);
   } else if (status->status == PSTATUS_BAD_LOGIN_DATA) {
     if (!clib::pclsync_lib::get_lib().newuser_) {
       clib::pclsync_lib::get_lib().get_pass_from_console();

pclsync_lib.h

@@ -46,6 +46,7 @@ public:
   ~pclsync_lib();
   pclsync_lib();
 
+  bool trusted_device_;
   bool crypto_on_;
   bool save_pass_;
   bool setup_crypto_;
@@ -55,12 +56,16 @@ public:
   bool was_init_;
 
   // Getters
+  const bool get_trusted_device();
+  const std::string &get_tfa_code();
   const std::string &get_username();
   const std::string &get_password();
   const std::string &get_crypto_pass();
   const std::string &get_mount();
 
   // Setters
+  void set_trusted_device(bool arg);
+  void set_tfa_code(const std::string& arg);
   void set_username(const std::string &arg);
   void set_password(const std::string &arg);
   void set_crypto_pass(const std::string &arg);
@@ -75,6 +80,7 @@ public:
   static pclsync_lib &get_lib();
 
   // Console
+  void get_tfa_code_from_console();
   void get_pass_from_console();
   void get_cryptopass_from_console();
 
@@ -97,6 +103,7 @@ public:
 private:
   std::string username_;
   std::string password_;
+  std::string tfa_code_;
   std::string crypto_pass_;
   std::string mount_;