AssertNodeName added to common utils

src/utils/common.cpp

@@ -8,11 +8,11 @@
 
 #include "common.hpp"
 #include <atomic>
-#include <cassert>
 #include <chrono>
 #include <random>
 #include <regex>
 #include <sstream>
+#include <stdexcept>
 #include <thread>
 #include <unistd.h>
 
@@ -273,3 +273,25 @@ bool utils::IsRoot()
 {
     return geteuid() == 0;
 }
+
+void utils::AssertNodeName(const std::string &str)
+{
+    if (str.length() <= 2)
+        throw std::runtime_error("Node name assertion failed: string'" + str + "' is too short");
+    if (str.length() > 1024)
+        throw std::runtime_error("Node name assertion failed: string'" + str + "' is too long");
+
+    for (char c : str)
+    {
+        if (c >= '0' && c <= '9')
+            continue;
+        if (c >= 'a' && c <= 'z')
+            continue;
+        if (c >= 'A' && c <= 'Z')
+            continue;
+        if (c == '-' || c == '_')
+            continue;
+        throw std::runtime_error("Node name assertion failed: string '" + str +
+                                 "' contains illegal character: " + std::string(1, c));
+    }
+}

src/utils/common.hpp

@@ -12,6 +12,7 @@
 #include "octet.hpp"
 #include "octet_string.hpp"
 #include "time_stamp.hpp"
+#include <iomanip>
 #include <string>
 #include <vector>
 
@@ -31,6 +32,7 @@ int ParseInt(const char *str);
 uint64_t Random64();
 void Sleep(int ms);
 bool IsRoot();
+void AssertNodeName(const std::string &str);
 
 template <typename T>
 inline void ClearAndDelete(std::vector<T *> &vector)
@@ -40,4 +42,12 @@ inline void ClearAndDelete(std::vector<T *> &vector)
     vector.clear();
 }
 
+template <typename T>
+static std::string IntToHex(T i)
+{
+    std::stringstream stream;
+    stream << std::setfill('0') << std::setw(sizeof(T) * 2) << std::hex << i;
+    return stream.str();
+}
+
 } // namespace utils
\ No newline at end of file