Importing libeoskeygen as "common" module in this repo (the amount of git repos is too damn high!)

common/src/key_search.cpp

@@ -0,0 +1,115 @@
+/**
+ * MIT License
+ *
+ * Copyright (c) 2019-2020 EOS Sw/eden
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <libeosio/ec.h>
+#include <libeosio/WIF.h>
+#include <eoskeygen/config.h>
+#include <eoskeygen/core/string.h>
+#include <eoskeygen/key_search_result.h>
+#include <eoskeygen/key_search.h>
+
+namespace eoskeygen {
+
+KeySearch::KeySearch() :
+#ifdef EOSIOKEYGEN_HAVE_THREADS
+	m_threads(0),
+#endif
+	m_callback(NULL)
+{
+}
+
+void KeySearch::addWord(const std::string& str)
+{
+	std::string tmp = str;
+	strtolower(tmp);
+	m_words.push_back(tmp);
+}
+
+void KeySearch::addList(const strlist_t& list)
+{
+	for(const std::string& item : list) {
+		addWord(item);
+	}
+}
+
+const strlist_t& KeySearch::getList()
+{
+	return m_words;
+}
+
+void KeySearch::clear()
+{
+	m_words.clear();
+}
+
+void KeySearch::setCallback(IKeySearchResult* callback)
+{
+	m_callback = callback;
+}
+
+void KeySearch::_search_linear(size_t n) {
+
+	size_t count = 0;
+	struct libeosio::ec_keypair pair;
+
+	while (count < n) {
+		struct result res;
+		libeosio::ec_generate_key(&pair);
+		if (_contains_word(&pair, res)) {
+			m_callback->onResult(&pair, res);
+			count++;
+		}
+	}
+}
+
+void KeySearch::find(size_t num_results) {
+
+#ifdef EOSIOKEYGEN_HAVE_THREADS
+	// Only do multithread if number of threads makes sense.
+	if (m_threads >= 2) {
+		_search_mt(num_results);
+		return;
+	}
+#endif /* HAVE_THREADS */
+
+	_search_linear(num_results);
+}
+
+bool KeySearch::_contains_word(const struct libeosio::ec_keypair* key, struct result& result) {
+
+	// skip first 3 chars, as those are always "EOS"
+	std::string pubstr = libeosio::wif_pub_encode(key->pub).substr(3);
+	strtolower(pubstr);
+
+	for(auto const& w: m_words) {
+		size_t p = pubstr.find(w);
+		if (p != std::string::npos) {
+			result.pos = p + 3;
+			result.len = w.length();
+			return true;
+		}
+	}
+	return false;
+}
+
+} // namespace eoskeygen