Add hex-encoded value converters

Tranz5 · May 23, 2014 · 4cc2591 · 4cc2591
1 parent d61aefe
commit 4cc2591
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Showing 2 changed files with 42 additions and 0 deletions.
diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
@@ -120,7 +120,41 @@ std::string HexBits(unsigned int nBits)
     return HexStr(BEGIN(uBits.cBits), END(uBits.cBits));
 }
 
+//
+// Utilities: convert hex-encoded Values
+// (throws error if not hex).
+//
+uint256 ParseHashV(const Value& v, string strName)
+{
+    string strHex;
+    if (v.type() == str_type)
+        strHex = v.get_str();
+    if (!IsHex(strHex)) // Note: IsHex("") is false
+        throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
+    uint256 result;
+    result.SetHex(strHex);
+    return result;
+}
+
+uint256 ParseHashO(const Object& o, string strKey)
+{
+    return ParseHashV(find_value(o, strKey), strKey);
+}
+
+vector<unsigned char> ParseHexV(const Value& v, string strName)
+{
+    string strHex;
+    if (v.type() == str_type)
+        strHex = v.get_str();
+    if (!IsHex(strHex))
+        throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
+    return ParseHex(strHex);
+}
 
+vector<unsigned char> ParseHexO(const Object& o, string strKey)
+{
+    return ParseHexV(find_value(o, strKey), strKey);
+}
 
 ///
 /// Note: This interface may still be subject to change.

diff --git a/src/bitcoinrpc.h b/src/bitcoinrpc.h
@@ -133,6 +133,14 @@ extern std::string HexBits(unsigned int nBits);
 extern std::string HelpRequiringPassphrase();
 extern void EnsureWalletIsUnlocked();
 
+//
+// Utilities: convert hex-encoded Values
+// (throws error if not hex).
+//
+extern uint256 ParseHashV(const json_spirit::Value& v, std::string strName);
+extern uint256 ParseHashO(const json_spirit::Object& o, std::string strKey);
+extern std::vector<unsigned char> ParseHexV(const json_spirit::Value& v, std::string strName);
+extern std::vector<unsigned char> ParseHexO(const json_spirit::Object& o, std::string strKey);
 
 extern json_spirit::Value getconnectioncount(const json_spirit::Array& params, bool fHelp); // in rpcnet.cpp
 extern json_spirit::Value getpeerinfo(const json_spirit::Array& params, bool fHelp);