jfjoch_viewer: Add more mask functionality

reader/JFJochHttpReader.cpp

@@ -199,3 +199,33 @@ std::vector<float> JFJochHttpReader::GetPlot_i(const std::string &plot_type, flo
                               "Could not parse image buffer status");
     }
 }
+
+void JFJochHttpReader::UploadUserMask(const std::vector<uint32_t>& mask) {
+    std::unique_lock ul(http_mutex);
+
+    if (addr.empty())
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid,
+                              "HTTP address not set. Call ReadURL() first.");
+
+    if (mask.empty())
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid,
+                              "User mask is empty.");
+
+    httplib::Client cli_cmd(addr);
+
+    const char* data_ptr = reinterpret_cast<const char*>(mask.data());
+    const size_t byte_size = mask.size() * sizeof(uint32_t);
+
+    auto res = cli_cmd.Put("/config/user_mask",
+                           data_ptr,
+                           byte_size,
+                           "application/octet-stream");
+
+    if (!res)
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid,
+                              "Failed to connect to server to upload user mask");
+
+    if (res->status != httplib::StatusCode::OK_200)
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid,
+                              "Server rejected user mask upload");
+}