1 files changed, 153 insertions, 0 deletions
diff --git a/src/core_read.cpp b/src/core_read.cpp
new file mode 100644
index 000000000..4be24f8e0
--- /dev/null
+++ b/src/core_read.cpp
@@ -0,0 +1,153 @@
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "core_io.h"
+
+#include "primitives/block.h"
+#include "primitives/transaction.h"
+#include "script/script.h"
+#include "serialize.h"
+#include "streams.h"
+#include <univalue.h>
+#include "util.h"
+#include "utilstrencodings.h"
+#include "version.h"
+
+#include <boost/algorithm/string/classification.hpp>
+#include <boost/algorithm/string/predicate.hpp>
+#include <boost/algorithm/string/replace.hpp>
+#include <boost/algorithm/string/split.hpp>
+#include <boost/assign/list_of.hpp>
+
+using namespace std;
+
+CScript ParseScript(const std::string& s)
+{
+    CScript result;
+
+    static map<string, opcodetype> mapOpNames;
+
+    if (mapOpNames.empty())
+    {
+        for (int op = 0; op <= OP_NOP10; op++)
+        {
+            // Allow OP_RESERVED to get into mapOpNames
+            if (op < OP_NOP && op != OP_RESERVED)
+                continue;
+
+            const char* name = GetOpName((opcodetype)op);
+            if (strcmp(name, "OP_UNKNOWN") == 0)
+                continue;
+            string strName(name);
+            mapOpNames[strName] = (opcodetype)op;
+            // Convenience: OP_ADD and just ADD are both recognized:
+            boost::algorithm::replace_first(strName, "OP_", "");
+            mapOpNames[strName] = (opcodetype)op;
+        }
+    }
+
+    vector<string> words;
+    boost::algorithm::split(words, s, boost::algorithm::is_any_of(" \t\n"), boost::algorithm::token_compress_on);
+
+    for (std::vector<std::string>::const_iterator w = words.begin(); w != words.end(); ++w)
+    {
+        if (w->empty())
+        {
+            // Empty string, ignore. (boost::split given '' will return one word)
+        }
+        else if (all(*w, boost::algorithm::is_digit()) ||
+            (boost::algorithm::starts_with(*w, "-") && all(string(w->begin()+1, w->end()), boost::algorithm::is_digit())))
+        {
+            // Number
+            int64_t n = atoi64(*w);
+            result << n;
+        }
+        else if (boost::algorithm::starts_with(*w, "0x") && (w->begin()+2 != w->end()) && IsHex(string(w->begin()+2, w->end())))
+        {
+            // Raw hex data, inserted NOT pushed onto stack:
+            std::vector<unsigned char> raw = ParseHex(string(w->begin()+2, w->end()));
+            result.insert(result.end(), raw.begin(), raw.end());
+        }
+        else if (w->size() >= 2 && boost::algorithm::starts_with(*w, "'") && boost::algorithm::ends_with(*w, "'"))
+        {
+            // Single-quoted string, pushed as data. NOTE: this is poor-man's
+            // parsing, spaces/tabs/newlines in single-quoted strings won't work.
+            std::vector<unsigned char> value(w->begin()+1, w->end()-1);
+            result << value;
+        }
+        else if (mapOpNames.count(*w))
+        {
+            // opcode, e.g. OP_ADD or ADD:
+            result << mapOpNames[*w];
+        }
+        else
+        {
+            throw runtime_error("script parse error");
+        }
+    }
+
+    return result;
+}
+
+bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx)
+{
+    if (!IsHex(strHexTx))
+        return false;
+
+    vector<unsigned char> txData(ParseHex(strHexTx));
+    CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION);
+    try {
+        ssData >> tx;
+    }
+    catch (const std::exception&) {
+        return false;
+    }
+
+    return true;
+}
+
+bool DecodeHexBlk(CBlock& block, const std::string& strHexBlk)
+{
+    if (!IsHex(strHexBlk))
+        return false;
+
+    std::vector<unsigned char> blockData(ParseHex(strHexBlk));
+    CDataStream ssBlock(blockData, SER_NETWORK, PROTOCOL_VERSION);
+    try {
+        ssBlock >> block;
+    }
+    catch (const std::exception&) {
+        return false;
+    }
+
+    return true;
+}
+
+uint256 ParseHashUV(const UniValue& v, const string& strName)
+{
+    string strHex;
+    if (v.isStr())
+        strHex = v.getValStr();
+    return ParseHashStr(strHex, strName);  // Note: ParseHashStr("") throws a runtime_error
+}
+
+uint256 ParseHashStr(const std::string& strHex, const std::string& strName)
+{
+    if (!IsHex(strHex)) // Note: IsHex("") is false
+        throw runtime_error(strName+" must be hexadecimal string (not '"+strHex+"')");
+
+    uint256 result;
+    result.SetHex(strHex);
+    return result;
+}
+
+vector<unsigned char> ParseHexUV(const UniValue& v, const string& strName)
+{
+    string strHex;
+    if (v.isStr())
+        strHex = v.getValStr();
+    if (!IsHex(strHex))
+        throw runtime_error(strName+" must be hexadecimal string (not '"+strHex+"')");
+    return ParseHex(strHex);
+}