up

inc/wechat_service.h

@@ -54,7 +54,7 @@ class WeChatService : public base::Singleton<WeChatService> {
   std::wstring GetContactOrChatRoomNickname(const std::wstring& wxid);
   int64_t GetContactByWxid(const std::wstring& wxid,
                            ContactProfileInner& profile);
-  int64_t DoDownloadTask(uint64_t msg_id);
+  std::wstring DoDownloadTask(uint64_t msg_id);
   int64_t ForwardPublicMsg(const std::wstring& wxid, const std::wstring& title,
                            const std::wstring& url,
                            const std::wstring& thumb_url,

src/misc_controller.cc

@@ -1,5 +1,6 @@
 #include "misc_controller.h"
-
+#include <locale> 
+#include <codecvt> 
 #include "json_utils.h"
 #include "nlohmann/json.hpp"
 #include "spdlog/spdlog.h"
@@ -162,8 +163,10 @@ std::string MiscController::DownloadAttach(std::string params) {
   SPDLOG_INFO("DownloadAttach params:{}", params);
   nlohmann::json jp = nlohmann::json::parse(params);
   int64_t msg_id = jsonutils::GetInt64Param(jp, "msgId");
-  int64_t success = wechat::WeChatService::GetInstance().DoDownloadTask(msg_id);
-  nlohmann::json ret = {{"code", success}, {"data", {}}, {"msg", "success"}};
+  std::wstring result = wechat::WeChatService::GetInstance().DoDownloadTask(msg_id);
+  std::string result_str = std::wstring_convert<std::codecvt_utf8<wchar_t>>().to_bytes(result);
+  nlohmann::json ret = {
+      {"code", 1}, {"data", {"result", result_str}}, {"msg", "success"} };
   return ret.dump();
 }
 }  // namespace wxhelper

src/wechat_service.cc

@@ -844,9 +844,23 @@ int64_t wechat::WeChatService::GetContactByWxid(const std::wstring& wxid,
   return success;
 }
 
+std::wstring combineAndRemoveDuplicate(const std::wstring& basePath, const std::wstring& resultPath) {
+    std::wstring cleanedBasePath = basePath;
+    if (cleanedBasePath.back() == L'\\') {
+        cleanedBasePath.pop_back();
+    }
+    size_t pos = resultPath.find(cleanedBasePath);
+    if (pos != std::wstring::npos) {
+        std::wstring adjustedResultPath = resultPath.substr(pos + cleanedBasePath.length());
+        return cleanedBasePath + L'\\' + adjustedResultPath;
+    }
+
+    return basePath + L'\\' + resultPath;
+}
 TODO("DoDownloadTask")
-int64_t wechat::WeChatService::DoDownloadTask(uint64_t msg_id) {
-  int64_t success = -1;
+
+std::wstring wechat::WeChatService::DoDownloadTask(uint64_t msg_id) {
+
   uint64_t get_by_local_id_addr = base_addr_ + offset::kGetMgrByPrefixLocalId;
   func::__GetMgrByPrefixLocalId get_by_local_id =
       (func::__GetMgrByPrefixLocalId)get_by_local_id_addr;
@@ -889,8 +903,7 @@ int64_t wechat::WeChatService::DoDownloadTask(uint64_t msg_id) {
   int64_t local_id =
       wechat::WeChatDb::GetInstance().GetLocalIdByMsgId(msg_id, index);
   if (local_id <= 0 || index >> 32 == 0) {
-    success = -2;
-    return success;
+    return L"-2";
   }
   char* chat_msg = base::utils::WxHeapAlloc<char>(0x460);
   LARGE_INTEGER l;
@@ -909,45 +922,42 @@ int64_t wechat::WeChatService::DoDownloadTask(uint64_t msg_id) {
 
   if (current_data_path.length > 0) {
     save_path += current_data_path.ptr;
-    save_path += L"wxhelper";
   } else {
-    return -1;
+    return L"-1";
   }
 
-  if (!wxutils::FindOrCreateDirectory(save_path)) {
-    return -3;
-  }
-  int64_t type = *(int64_t*)(chat_msg + 0x38);
+   int64_t type = *(int64_t*)(chat_msg + 0x38);
   wchar_t* content = *(wchar_t**)(chat_msg + 0x88);
   DWORD len = *(DWORD*)(chat_msg + 0x94);
   std::wstring tmp_content(content, len);
   prototype::WeChatString* we_content = BuildWechatString(tmp_content);
 
   switch (type) {
-    case 0x3: {
-      save_path += L"\\image";
-      if (!wxutils::FindOrCreateDirectory(save_path)) {
-        return -3;
+  case 0x3: {   
+      if (!save_path.empty() && save_path.back() == L'\\') {
+          save_path.pop_back();
+      }
+      size_t pos = save_path.find_last_of(L'\\');
+      if (pos != std::wstring::npos) {
+          save_path = save_path.substr(0, pos + 1); // 保留最后一个反斜杠
       }
-      thumb_path = save_path + L"\\" + std::to_wstring(msg_id) + L"_t.dat";
-      save_path = save_path + L"\\" + std::to_wstring(msg_id) + L".dat";
       break;
-    }
-    case 0x3E:
-    case 0x2B: {
+  }
+  case 0x3E:
+  case 0x2B: {
       save_path += L"\\video";
       if (!wxutils::FindOrCreateDirectory(save_path)) {
-        return -3;
+          return L"-3" ;
       }
       thumb_path = save_path + L"\\" + std::to_wstring(msg_id) + L".jpg";
       save_path = save_path + L"\\" + std::to_wstring(msg_id) + L".mp4";
 
       break;
-    }
-    case 0x31: {
+  }
+  case 0x31: {
       save_path += L"\\file";
       if (!wxutils::FindOrCreateDirectory(save_path)) {
-        return -3;
+          return L"-3";
       }
       char* p_xml_app_msg = base::utils::WxHeapAlloc<char>(0x3000);
       uint64_t xml_msg =
@@ -955,28 +965,25 @@ int64_t wechat::WeChatService::DoDownloadTask(uint64_t msg_id) {
       uint64_t result =
           xml_to_app_info(xml_msg, reinterpret_cast<uint64_t>(we_content), 1);
       if (result != 1) {
-        return -4;
+          return L"-4";
       }
       std::wstring file_name = wxutils::ReadWstring(xml_msg + 0x70);
       save_path =
           save_path + L"\\" + std::to_wstring(msg_id) + L"_" + file_name;
       free_app_msg_info(xml_msg);
       break;
-    }
-    default:
+  }
+  default:
       break;
   }
-  prototype::WeChatString* we_save_path = BuildWechatString(save_path);
-  prototype::WeChatString* we_thumb_path = BuildWechatString(thumb_path);
+
   int temp = 1;
-  memcpy(chat_msg + 0x280, we_thumb_path, sizeof(prototype::WeChatString));
-  memcpy(chat_msg + 0x2A0, we_save_path, sizeof(prototype::WeChatString));
   memcpy(chat_msg + 0x40C, &temp, sizeof(temp));
   UINT64 mgr = get_pre_download_mgr();
-  success = push_attach_task(mgr, p_chat_msg, 0, 1);
+  INT64 success = push_attach_task(mgr, p_chat_msg, 0, 1);  
+  std::wstring result = *(wchar_t**)(chat_msg + 0x2A0);
   free_chat_msg(p_chat_msg);
-
-  return success;
+  return save_path + result;
 }
 
 TODO("ForwardPublicMsg")

wxhelper.vcxproj

@@ -118,7 +118,7 @@
       <PrecompiledHeader>
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
       <LanguageStandard>stdcpp17</LanguageStandard>
       <AdditionalIncludeDirectories>inc\nlohmann;inc\tinyxml2;inc\mongoose;inc\lz4;inc\Detours;inc\include;inc\base64;inc;inc\spdlog;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>