feat(api): wire int64_as_string into servlets that bypass JsonFormat or PostParams

Five servlets do not get the centralized flag automatically:

- GetPaginatedProposalListServlet manually reads the request body
  (does not use PostParams.getPostParams). Its doPost now explicitly
  calls JsonFormat.setInt64AsString(Util.getInt64AsStringPost(input))
  after reading the body.
- GetRewardServlet has a hand-rolled JSON-body POST path (also bypasses
  PostParams). It now sets the ThreadLocal from the body it parsed and
  reads JsonFormat.isInt64AsString() to choose between quoted and
  unquoted output.
- GetBurnTrxServlet, GetPendingSizeServlet, and
  GetTransactionCountByBlockNumServlet build their JSON literal manually
  (do not go through JsonFormat). They now read
  JsonFormat.isInt64AsString() to pick the format.

Also includes:
- GetRewardServlet.doPost: previously delegated to doGet, so the
  request body was silently ignored on POST. Now parses address (and
  int64_as_string) from the JSON body when Content-Type is
  application/json; falls back to the legacy doGet behavior otherwise.
- GetBlockServlet.parseParams: extract a named visible local using
  Util.getVisible(request) for symmetry with how every other servlet
  in this package reads the flag.
- GetBrokerageServlet: replace the duplicated INVALID-address error
  block with Util.processAddressError.

Author: waynercheung

framework/src/main/java/org/tron/core/services/http/GetBlockServlet.java

@@ -49,8 +49,8 @@ private PostParams parseParams(HttpServletRequest request) throws Exception {
         params.put("id_or_num", idOrNum);
       }
       params.put("detail", Boolean.parseBoolean(request.getParameter("detail")));
-      return new PostParams(JSON.toJSONString(params),
-          Boolean.parseBoolean(request.getParameter(Util.VISIBLE)));
+      boolean visible = Util.getVisible(request);
+      return new PostParams(JSON.toJSONString(params), visible);
     }
     if (HttpMethod.POST.equals(m)) {
       return PostParams.getPostParams(request);

framework/src/main/java/org/tron/core/services/http/GetBrokerageServlet.java

@@ -1,6 +1,5 @@
 package org.tron.core.services.http;
 
-import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;
@@ -27,12 +26,7 @@ protected void doGet(HttpServletRequest request, HttpServletResponse response) {
       }
       response.getWriter().println("{\"brokerage\": " + value + "}");
     } catch (DecoderException | IllegalArgumentException e) {
-      try {
-        response.getWriter()
-            .println("{\"Error\": " + "\"INVALID address, " + e.getMessage() + "\"}");
-      } catch (IOException ioe) {
-        logger.debug("IOException: {}", ioe.getMessage());
-      }
+      Util.processAddressError(e, response);
     } catch (Exception e) {
       Util.processError(e, response);
     }

framework/src/main/java/org/tron/core/services/http/GetBurnTrxServlet.java

@@ -19,7 +19,10 @@ public class GetBurnTrxServlet extends RateLimiterServlet {
   protected void doGet(HttpServletRequest request, HttpServletResponse response) {
     try {
       long value = manager.getDynamicPropertiesStore().getBurnTrxAmount();
-      response.getWriter().println("{\"burnTrxAmount\": " + value + "}");
+      String out = JsonFormat.isInt64AsString()
+          ? "{\"burnTrxAmount\": \"" + value + "\"}"
+          : "{\"burnTrxAmount\": " + value + "}";
+      response.getWriter().println(out);
     } catch (Exception e) {
       logger.error("", e);
       try {

framework/src/main/java/org/tron/core/services/http/GetPaginatedProposalListServlet.java

@@ -35,6 +35,9 @@ protected void doPost(HttpServletRequest request, HttpServletResponse response)
           .collect(Collectors.joining(System.lineSeparator()));
       Util.checkBodySize(input);
       boolean visible = Util.getVisiblePost(input);
+      // This servlet bypasses PostParams.getPostParams (it parses the body inline), so the
+      // int64_as_string ThreadLocal must be set here. RateLimiterServlet.service clears it.
+      JsonFormat.setInt64AsString(Util.getInt64AsStringPost(input));
       PaginatedMessage.Builder build = PaginatedMessage.newBuilder();
       JsonFormat.merge(input, build, visible);
       fillResponse(build.getOffset(), build.getLimit(), visible, response);

framework/src/main/java/org/tron/core/services/http/GetPendingSizeServlet.java

@@ -19,7 +19,10 @@ public class GetPendingSizeServlet extends RateLimiterServlet {
   protected void doGet(HttpServletRequest request, HttpServletResponse response) {
     try {
       long value = manager.getPendingSize();
-      response.getWriter().println("{\"pendingSize\": " + value + "}");
+      String out = JsonFormat.isInt64AsString()
+          ? "{\"pendingSize\": \"" + value + "\"}"
+          : "{\"pendingSize\": " + value + "}";
+      response.getWriter().println(out);
     } catch (Exception e) {
       logger.error("", e);
       try {

framework/src/main/java/org/tron/core/services/http/GetRewardServlet.java

@@ -1,9 +1,12 @@
 package org.tron.core.services.http;
 
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
 import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
 import org.bouncycastle.util.encoders.DecoderException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
@@ -19,30 +22,53 @@ public class GetRewardServlet extends RateLimiterServlet {
 
   protected void doGet(HttpServletRequest request, HttpServletResponse response) {
     try {
-      long value = 0;
       byte[] address = Util.getAddress(request);
-      if (address != null) {
-        value = manager.getMortgageService().queryReward(address);
-      }
-      response.getWriter().println("{\"reward\": " + value + "}");
+      renderReward(address, response);
     } catch (DecoderException | IllegalArgumentException e) {
-      try {
-        response.getWriter()
-            .println("{\"Error\": " + "\"INVALID address, " + e.getMessage() + "\"}");
-      } catch (IOException ioe) {
-        logger.debug("IOException: {}", ioe.getMessage());
-      }
+      Util.processAddressError(e, response);
     } catch (Exception e) {
-      logger.error("", e);
-      try {
-        response.getWriter().println(Util.printErrorMsg(e));
-      } catch (IOException ioe) {
-        logger.debug("IOException: {}", ioe.getMessage());
-      }
+      printGenericError(e, response);
     }
   }
 
   protected void doPost(HttpServletRequest request, HttpServletResponse response) {
-    doGet(request, response);
+    String contentType = request.getContentType();
+    if (contentType == null || !contentType.contains("application/json")) {
+      doGet(request, response);
+      return;
+    }
+    try {
+      String body = Util.getRequestValue(request);
+      JSONObject json = StringUtils.isNotBlank(body) ? JSON.parseObject(body) : null;
+      String addressStr = (json != null) ? json.getString("address") : null;
+      // This servlet bypasses PostParams.getPostParams, so set the ThreadLocal explicitly
+      // from the body. RateLimiterServlet.service clears it in finally.
+      JsonFormat.setInt64AsString(json != null
+          && Boolean.parseBoolean(json.getString(Util.INT64_AS_STRING)));
+      renderReward(Util.decodeAddress(addressStr), response);
+    } catch (DecoderException | IllegalArgumentException e) {
+      Util.processAddressError(e, response);
+    } catch (Exception e) {
+      printGenericError(e, response);
+    }
+  }
+
+  private void renderReward(byte[] address, HttpServletResponse response) throws IOException {
+    long value = (address != null)
+        ? manager.getMortgageService().queryReward(address)
+        : 0L;
+    String out = JsonFormat.isInt64AsString()
+        ? "{\"reward\": \"" + value + "\"}"
+        : "{\"reward\": " + value + "}";
+    response.getWriter().println(out);
+  }
+
+  private void printGenericError(Exception e, HttpServletResponse response) {
+    logger.error("", e);
+    try {
+      response.getWriter().println(Util.printErrorMsg(e));
+    } catch (IOException ioe) {
+      logger.debug("IOException: {}", ioe.getMessage());
+    }
   }
 }

framework/src/main/java/org/tron/core/services/http/GetTransactionCountByBlockNumServlet.java

@@ -38,8 +38,12 @@ protected void doPost(HttpServletRequest request, HttpServletResponse response)
     }
   }
 
-  private void fillResponse(long num, HttpServletResponse response) throws IOException {
+  private void fillResponse(long num, HttpServletResponse response)
+      throws IOException {
     long count = wallet.getTransactionCountByBlockNum(num);
-    response.getWriter().println("{\"count\": " + count + "}");
+    String out = JsonFormat.isInt64AsString()
+        ? "{\"count\": \"" + count + "\"}"
+        : "{\"count\": " + count + "}";
+    response.getWriter().println(out);
   }
 }