1 files changed, 55 insertions, 0 deletions
diff --git a/src/rpc/rpc_version_str.cpp b/src/rpc/rpc_version_str.cpp
new file mode 100644
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+++ b/src/rpc/rpc_version_str.cpp
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+// Copyright (c) 2019, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. 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.
+// 
+// 3. Neither the name of the copyright holder 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
+
+#include "rpc_version_str.h"
+#include "version.h"
+#include <regex>
+
+namespace cryptonote
+{
+
+namespace rpc
+{
+
+// Expected format of Monero software version string:
+// 1) Four numbers, one to two digits each, separated by periods
+// 2) Optionally, one of the following suffixes:
+//      a) -release
+//      b) -<hash> where <hash> is exactly nine lowercase hex digits
+
+bool is_version_string_valid(const std::string& str)
+{
+    return std::regex_match(str, std::regex(
+        "^\\d{1,2}(\\.\\d{1,2}){3}(-(release|[0-9a-f]{9}))?$",
+        std::regex_constants::nosubs
+    ));
+}
+
+}  // namespace rpc
+
+}  // namespace cryptonote