diff options
| -rw-r--r-- | desktop/source/lib/init.cxx | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/desktop/source/lib/init.cxx b/desktop/source/lib/init.cxx index 57067fa479a8..d879798e85db 100644 --- a/desktop/source/lib/init.cxx +++ b/desktop/source/lib/init.cxx @@ -446,10 +446,26 @@ bool lcl_isViewCallbackType(const int type) int lcl_getViewId(const std::string& payload) { - boost::property_tree::ptree aTree; - std::stringstream aStream(payload); - boost::property_tree::read_json(aStream, aTree); - return aTree.get<int>("viewId"); + // this is a cheap way how to get the viewId from a JSON message; proper + // parsing is terribly expensive, and we just need the viewId here + size_t viewIdPos = payload.find("viewId"); + if (viewIdPos == std::string::npos) + return 0; + + size_t numberPos = payload.find(":", viewIdPos + 6); + if (numberPos == std::string::npos) + return 0; + + for (++numberPos; numberPos < payload.length(); ++numberPos) + { + if (payload[numberPos] == ',' || payload[numberPos] == '}' || (payload[numberPos] >= '0' && payload[numberPos] <= '9')) + break; + } + + if (numberPos < payload.length() && payload[numberPos] >= '0' && payload[numberPos] <= '9') + return std::stoi(payload.substr(numberPos)); + + return 0; } } // end anonymous namespace |