fix (#552)

Author: qicosmos

include/cinatra/coro_http_client.hpp

@@ -1612,14 +1612,6 @@ class coro_http_client : public std::enable_shared_from_this<coro_http_client> {
         break;
       }
 
-      if (chunk_size == 0) {
-        // all finished, no more data
-        chunked_buf_.consume(CRCF.size());
-        data.status = 200;
-        data.eof = true;
-        break;
-      }
-
       if (additional_size < size_t(chunk_size + 2)) {
         // not a complete chunk, read left chunk data.
         size_t size_to_read = chunk_size + 2 - additional_size;
@@ -1630,6 +1622,14 @@ class coro_http_client : public std::enable_shared_from_this<coro_http_client> {
         }
       }
 
+      if (chunk_size == 0) {
+        // all finished, no more data
+        chunked_buf_.consume(chunked_buf_.size());
+        data.status = 200;
+        data.eof = true;
+        break;
+      }
+
       data_ptr = asio::buffer_cast<const char *>(chunked_buf_.data());
       if (ctx.stream) {
         ec = co_await ctx.stream->async_write(data_ptr, chunk_size);

include/cinatra/coro_http_connection.hpp

@@ -524,13 +524,6 @@ class coro_http_connection
 
     chunked_buf_.consume(size);
 
-    if (chunk_size == 0) {
-      // all finished, no more data
-      chunked_buf_.consume(CRCF.size());
-      result.eof = true;
-      co_return result;
-    }
-
     if (additional_size < size_t(chunk_size + 2)) {
       // not a complete chunk, read left chunk data.
       size_t size_to_read = chunk_size + 2 - additional_size;
@@ -542,6 +535,13 @@ class coro_http_connection
       }
     }
 
+    if (chunk_size == 0) {
+      // all finished, no more data
+      chunked_buf_.consume(chunked_buf_.size());
+      result.eof = true;
+      co_return result;
+    }
+
     data_ptr = asio::buffer_cast<const char *>(chunked_buf_.data());
     result.data = std::string_view{data_ptr, (size_t)chunk_size};
     chunked_buf_.consume(chunk_size + CRCF.size());