Added --server.jwt-secret-keyfile to arangosh. (#9184)

CHANGELOG

@@ -1,6 +1,8 @@
 devel
 -----
 
+* Added --server.jwt-secret-keyfile to arangosh.
+
 * fixed `Buffer.alloc` method
 
 * `Buffer` is now iterable and accepts `ArrayBuffer` values as input

arangosh/Shell/ClientFeature.cpp

@@ -31,6 +31,7 @@
 #include "SimpleHttpClient/GeneralClientConnection.h"
 #include "SimpleHttpClient/SimpleHttpClient.h"
 #include "Ssl/ssl-helper.h"
+#include "Basics/FileUtils.h"
 
 #include <chrono>
 #include <iostream>
@@ -113,6 +114,16 @@ void ClientFeature::collectOptions(std::shared_ptr<ProgramOptions> options) {
         "created",
         new BooleanParameter(&_askJwtSecret),
         arangodb::options::makeFlags(arangodb::options::Flags::Hidden));
+
+    options->addOption("--server.jwt-secret-keyfile",
+                       "if this option is specified, the jwt secret will be loaded "
+                       "from the given file. This option is not compatible with "
+                       "--server.ask-jwt-secret, --server.username or --server.password. "
+                       "If specified, it will be used for all "
+                       "connections - even when a new connection to another server is "
+                       "created",
+                       new StringParameter(&_jwtSecretFile),
+                       arangodb::options::makeFlags(arangodb::options::Flags::Hidden));
   }
 
   options->addOption("--server.connection-timeout",
@@ -160,6 +171,8 @@ void ClientFeature::validateOptions(std::shared_ptr<ProgramOptions> options) {
     _authentication = false;
   }
 
+  bool hasJwtSecretFile = !_jwtSecretFile.empty();
+
   // check timeouts
   if (_connectionTimeout < 0.0) {
     LOG_TOPIC("81598", FATAL, arangodb::Logger::FIXME)
@@ -192,15 +205,21 @@ void ClientFeature::validateOptions(std::shared_ptr<ProgramOptions> options) {
 
   _haveServerPassword = !options->processingResult().touched("server.password");
 
-  if (_askJwtSecret && options->processingResult().touched("server.password")) {
+  if ((_askJwtSecret || hasJwtSecretFile) && options->processingResult().touched("server.password")) {
     LOG_TOPIC("65475", FATAL, arangodb::Logger::FIXME)
-        << "cannot specify both --server.password and --server.ask-jwt-token";
+        << "cannot specify both --server.password and jwt secret source";
     FATAL_ERROR_EXIT();
   }
 
-  if (_askJwtSecret && options->processingResult().touched("server.username")) {
+  if ((_askJwtSecret || hasJwtSecretFile) && options->processingResult().touched("server.username")) {
     LOG_TOPIC("9d886", FATAL, arangodb::Logger::FIXME)
-        << "cannot specify both --server.username and --server.ask-jwt-token";
+        << "cannot specify both --server.username and jwt secret source";
+    FATAL_ERROR_EXIT();
+  }
+
+  if (_askJwtSecret && hasJwtSecretFile) {
+    LOG_TOPIC("aeaeb", FATAL, arangodb::Logger::FIXME)
+        << "multiple jwt secret sources specified";
     FATAL_ERROR_EXIT();
   }
 
@@ -245,6 +264,25 @@ void ClientFeature::readJwtSecret() {
   std::cout << std::endl << std::flush;
 }
 
+void ClientFeature::loadJwtSecretFile() {
+  try {
+      // Note that the secret is trimmed for whitespace, because whitespace
+      // at the end of a file can easily happen. We do not base64-encode,
+      // though, so the bytes count as given. Zero bytes might be a problem
+      // here.
+      _jwtSecret = basics::StringUtils::trim(
+          basics::FileUtils::slurp(_jwtSecretFile),
+          " \t\n\r");
+    } catch (std::exception const& ex) {
+      LOG_TOPIC("aeaec", FATAL, Logger::STARTUP)
+          << "unable to read content of jwt-secret file '"
+          << _jwtSecretFile << "': " << ex.what()
+          << ". please make sure the file/directory is readable for the "
+             "arangod process and user";
+      FATAL_ERROR_EXIT();
+    }
+}
+
 void ClientFeature::prepare() {
   if (!isEnabled()) {
     return;
@@ -253,6 +291,8 @@ void ClientFeature::prepare() {
   if (_askJwtSecret) {
     // ask for a jwt secret
     readJwtSecret();
+  } else if(!_jwtSecretFile.empty()) {
+    loadJwtSecretFile();
   } else if (_authentication && _haveServerPassword) {
     // ask for a password
     readPassword();

arangosh/Shell/ClientFeature.h

@@ -108,6 +108,7 @@ class ClientFeature final : public application_features::ApplicationFeature,
  private:
   void readPassword();
   void readJwtSecret();
+  void loadJwtSecretFile();
 
   std::string _databaseName;
   bool _authentication;
@@ -116,6 +117,7 @@ class ClientFeature final : public application_features::ApplicationFeature,
   std::string _username;
   std::string _password;
   std::string _jwtSecret;
+  std::string _jwtSecretFile;
   double _connectionTimeout;
   double _requestTimeout;
   uint64_t _maxPacketSize;