VG-3617: Fix some weird crash in wd integration tests (#858)

* fix: weird crash in wd integration tests when loading libcore.

The fix is to avoid using std::regex constructor of global static variables
using lazy initialization of static variables. The crash happens when the
WD tries to load the libcore and static regex variable are being
initialized. It looks like the locale is not yet correctly defined and the
regex constructor does not accept this case.

* fix: btc transaction incorrect parsing when values are string

Handle string type for some fields in BTC transaction returned
by explorers.

* fix: possible memory leak in Base58

* ci: bump patch version

CMakeLists.txt

@@ -44,7 +44,7 @@ include_what_you_use()  # add cmake conf option IWYU=ON to activate
 # The project version number.
 set(VERSION_MAJOR   4   CACHE STRING "Project major version number.")
 set(VERSION_MINOR   1   CACHE STRING "Project minor version number.")
-set(VERSION_PATCH   5   CACHE STRING "Project patch version number.")
+set(VERSION_PATCH   6   CACHE STRING "Project patch version number.")
 mark_as_advanced(VERSION_MAJOR VERSION_MINOR VERSION_PATCH)
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY build)

core/src/math/Base58.cpp

@@ -35,6 +35,7 @@
 #include <utils/hex.h>
 #include <functional>
 #include <crypto/Keccak.h>
+#include <vector>
 
 using namespace ledger::core;
 static const std::string DIGITS = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
@@ -62,7 +63,7 @@ std::string ledger::core::Base58::encode(const std::vector<uint8_t> &bytes,
     pend = len;
     while (pbegin != pend && !bytes[pbegin]) pbegin = ++zeros;
     const int size = 1 + iFactor * (double)(pend - pbegin);
-    unsigned char* b58 = new unsigned char[size];
+    std::vector<unsigned char> b58(size, 0);
     for (int i = 0; i < size; i++) b58[i] = 0;
     while (pbegin != pend) {
         unsigned int carry = bytes[pbegin];
@@ -82,7 +83,6 @@ std::string ledger::core::Base58::encode(const std::vector<uint8_t> &bytes,
     int ri = 0;
     while (ri < zeros) { result += base58Dictionary[0]; ri++; }
     for (; it2 < size; ++it2) result += base58Dictionary[b58[it2]];
-    delete[] b58;
     return result;
 }
 

core/src/utils/DateUtils.cpp

@@ -52,8 +52,8 @@ namespace {
             {"Dec", "12"},
     };
 
-    const std::regex PARSE_JSON_DATE_REGEX("([0-9]+)-([0-9]+)-([0-9]+)T([0-9]+):([0-9]+):([0-9]+)[\\.0-9]*([Z]?)");
-    const std::regex FORMAT_JSON_DATE_REGEX("([0-9]+)-([a-zA-Z]+)-([0-9]+) ([0-9]+):([0-9]+):([0-9]+)[\\.0-9]*([Z]?)");
+    constexpr auto PARSE_JSON_DATE_REGEX("([0-9]+)-([0-9]+)-([0-9]+)T([0-9]+):([0-9]+):([0-9]+)[\\.0-9]*([Z]?)");
+    constexpr auto FORMAT_JSON_DATE_REGEX("([0-9]+)-([a-zA-Z]+)-([0-9]+) ([0-9]+):([0-9]+):([0-9]+)[\\.0-9]*([Z]?)");
 }
 
 #if defined(_WIN32) || defined(_WIN64)
@@ -67,9 +67,11 @@ namespace {
 namespace ledger {
     namespace core {
         std::chrono::system_clock::time_point ledger::core::DateUtils::fromJSON(const std::string &str) {
+            static const std::regex parseJsonDateRegex {PARSE_JSON_DATE_REGEX};
+
             std::cmatch what;
 
-            if (regex_match(str.c_str(), what, PARSE_JSON_DATE_REGEX)) {
+            if (regex_match(str.c_str(), what, parseJsonDateRegex)) {
                 auto year = boost::lexical_cast<unsigned int>(std::string(what[1].first, what[1].second));
                 auto month = boost::lexical_cast<unsigned int>(std::string(what[2].first, what[2].second));
                 auto day = boost::lexical_cast<unsigned int>(std::string(what[3].first, what[3].second));
@@ -104,10 +106,11 @@ namespace ledger {
     }
 
     std::string ledger::core::DateUtils::formatDateFromJSON(const std::string &str) {
+        static const std::regex formatJsonDateRegex {FORMAT_JSON_DATE_REGEX};
 
         std::cmatch what;
 
-        if (regex_match(str.c_str(), what, FORMAT_JSON_DATE_REGEX)) {
+        if (regex_match(str.c_str(), what, formatJsonDateRegex)) {
             auto year = boost::lexical_cast<unsigned int>(std::string(what[1].first, what[1].second));
             auto month = boost::lexical_cast<std::string>(std::string(what[2].first, what[2].second));
             auto day = boost::lexical_cast<unsigned int>(std::string(what[3].first, what[3].second));

core/src/wallet/bitcoin/explorers/BitcoinLikeBlockchainExplorer.hpp

@@ -99,17 +99,7 @@ namespace ledger {
                 confirmations = -1;
             }
 
-            BitcoinLikeBlockchainExplorerTransaction(const BitcoinLikeBlockchainExplorerTransaction &cpy) {
-                this->confirmations = cpy.confirmations;
-                this->version = cpy.version;
-                this->outputs = cpy.outputs;
-                this->inputs = cpy.inputs;
-                this->receivedAt = cpy.receivedAt;
-                this->lockTime = cpy.lockTime;
-                this->fees = cpy.fees;
-                this->hash = cpy.hash;
-                this->block = cpy.block;
-            }
+            BitcoinLikeBlockchainExplorerTransaction(const BitcoinLikeBlockchainExplorerTransaction &cpy) = default;
         };
 
         class BitcoinLikeBlockchainExplorer : public ConfigurationMatchable,

core/src/wallet/bitcoin/explorers/api/InputParser.cpp

@@ -88,6 +88,8 @@ namespace ledger {
                 _input->coinbase = Option<std::string>(value);
             } else if (_lastKey == "value") {
                 _input->value = Option<BigInt>(BigInt::fromString(value));
+            } else if (_lastKey == "sequence") {
+                _input->sequence = BigInt::fromString(value).toUint64();
             }
             return true;
         }

core/src/wallet/bitcoin/explorers/api/TransactionParser.cpp

@@ -169,7 +169,11 @@ namespace ledger {
                 }
                 else if (_lastKey == "received_at") {
                     _transaction->receivedAt = DateUtils::fromJSON(value);
+                } else if (_lastKey == "fees") {
+                    BigInt intValue = BigInt::fromString(value);
+                    _transaction->fees = Option<BigInt>(intValue);
                 }
+
                 return true;
             }
         }