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Subject [GitHub] [nifi-minifi-cpp] hunyadi-dev commented on a change in pull request #886: MINIFICPP-1323 Encrypt sensitive properties
Date Tue, 01 Sep 2020 09:43:56 GMT

hunyadi-dev commented on a change in pull request #886:
URL: https://github.com/apache/nifi-minifi-cpp/pull/886#discussion_r481008443



##########
File path: encrypt-config/ConfigFile.cpp
##########
@@ -0,0 +1,195 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ConfigFile.h"
+
+#include <fstream>
+
+#include "utils/StringUtils.h"
+
+namespace {
+const std::array<const char*, 2> DEFAULT_SENSITIVE_PROPERTIES{"nifi.security.client.pass.phrase",
+                                                              "nifi.rest.api.password"};
+const char* ADDITIONAL_SENSITIVE_PROPS_PROPERTY_NAME = "nifi.sensitive.props.additional.keys";
+}  // namespace
+
+namespace org {
+namespace apache {
+namespace nifi {
+namespace minifi {
+namespace encrypt_config {
+
+ConfigLine::ConfigLine(std::string line) : line_(line) {
+  line = utils::StringUtils::trim(line);
+  if (line.empty() || line[0] == '#') { return; }
+
+  size_t index_of_first_equals_sign = line.find('=');
+  if (index_of_first_equals_sign == std::string::npos) { return; }
+
+  std::string key = utils::StringUtils::trim(line.substr(0, index_of_first_equals_sign));
+  if (key.empty()) { return; }
+
+  key_ = key;
+  value_ = utils::StringUtils::trim(line.substr(index_of_first_equals_sign + 1));
+}
+
+ConfigLine::ConfigLine(const std::string& key, const std::string& value)
+  : line_{key + "=" + value}, key_{key}, value_{value} {
+}
+
+void ConfigLine::updateValue(const std::string& value) {
+  auto pos = line_.find('=');
+  if (pos != std::string::npos) {
+    line_.replace(pos + 1, std::string::npos, value);
+    value_ = value;
+  } else {
+    throw std::invalid_argument{"Cannot update value in config line: it does not contain
an = sign!"};
+  }
+}
+
+ConfigFile::ConfigFile(const std::string& file_path) {
+  std::ifstream file{file_path};
+  std::string line;
+  while (std::getline(file, line)) {
+    config_lines_.push_back(ConfigLine{line});
+  }
+}
+
+ConfigFile::Lines::const_iterator ConfigFile::findKey(const std::string& key) const {
+  return std::find_if(config_lines_.begin(), config_lines_.end(), [&key](const ConfigLine&
config_line) {
+    return config_line.key_ == key;
+  });
+}
+
+ConfigFile::Lines::iterator ConfigFile::findKey(const std::string& key) {
+  return std::find_if(config_lines_.begin(), config_lines_.end(), [&key](const ConfigLine&
config_line) {
+    return config_line.key_ == key;
+  });
+}
+
+utils::optional<std::string> ConfigFile::getValue(const std::string& key) const
{
+  auto it = findKey(key);
+  if (it != config_lines_.end()) {
+    return it->value_;
+  } else {
+    return utils::nullopt;
+  }
+}
+
+void ConfigFile::update(const std::string& key, const std::string& value) {
+  const auto it = findKey(key);

Review comment:
       This though does not seem like a const iterator.




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