WinHTTP: Add http_proxy_info

Signed-off-by: Simon Rozman <simon@rozman.si>

include/WinStd/WinHTTP.h

@@ -96,5 +96,49 @@ namespace winstd
         }
     };
 
+    ///
+    /// WINHTTP_PROXY_INFO wrapper class
+    ///
+    /// \sa [WinHttpGetProxyForUrl function](https://learn.microsoft.com/en-us/windows/win32/api/winhttp/nf-winhttp-winhttpgetproxyforurl)
+    ///
+    struct http_proxy_info : public WINHTTP_PROXY_INFO
+    {
+        http_proxy_info()
+        {
+            dwAccessType = 0;
+            lpszProxy = NULL;
+            lpszProxyBypass = NULL;
+        }
+
+        http_proxy_info(_Inout_ WINHTTP_PROXY_INFO&& other)
+        {
+            dwAccessType = other.dwAccessType;
+            lpszProxy = other.lpszProxy;
+            other.lpszProxy = NULL;
+            lpszProxyBypass = other.lpszProxyBypass;
+            other.lpszProxyBypass = NULL;
+        }
+
+        http_proxy_info& operator=(_Inout_ WINHTTP_PROXY_INFO&& other)
+        {
+            if (this != std::addressof(other)) {
+                dwAccessType = other.dwAccessType;
+                if (lpszProxy) GlobalFree(lpszProxy);
+                lpszProxy = other.lpszProxy;
+                other.lpszProxy = NULL;
+                if (lpszProxyBypass) GlobalFree(lpszProxyBypass);
+                lpszProxyBypass = other.lpszProxyBypass;
+                other.lpszProxyBypass = NULL;
+            }
+            return *this;
+        }
+
+        ~http_proxy_info()
+        {
+            if (lpszProxy) GlobalFree(lpszProxy);
+            if (lpszProxyBypass) GlobalFree(lpszProxyBypass);
+        }
+    };
+
     /// @}
 }