1 files changed, 75 insertions, 0 deletions
diff --git a/src/text_anonymizer.hh b/src/text_anonymizer.hh
new file mode 100644
index 0000000..124e20d
--- /dev/null
+++ b/src/text_anonymizer.hh
@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) 2022, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef lnav_text_anonymizer_hh
+#define lnav_text_anonymizer_hh
+
+#include <string>
+#include <vector>
+
+#include "base/intern_string.hh"
+#include "robin_hood/robin_hood.h"
+
+namespace lnav {
+
+class text_anonymizer {
+public:
+    text_anonymizer() = default;
+
+    std::string next(string_fragment line);
+
+private:
+    template<typename F>
+    const std::string& get_default(
+        robin_hood::unordered_map<std::string, std::string>& mapping,
+        const std::string& input,
+        F provider)
+    {
+        auto iter = mapping.find(input);
+        if (iter == mapping.end()) {
+            auto emp_res = mapping.template emplace(
+                input, provider(mapping.size(), input));
+
+            iter = emp_res.first;
+        }
+
+        return iter->second;
+    }
+
+    robin_hood::unordered_map<std::string, std::string> ta_mac_addresses;
+    robin_hood::unordered_map<std::string, std::string> ta_ipv4_addresses;
+    robin_hood::unordered_map<std::string, std::string> ta_ipv6_addresses;
+    robin_hood::unordered_map<std::string, std::string> ta_user_names;
+    robin_hood::unordered_map<std::string, std::string> ta_host_names;
+    robin_hood::unordered_map<std::string, std::string> ta_symbols;
+};
+
+}  // namespace lnav
+
+#endif