Decompile fn_03968 (CEmblemDataDownloadAsyncWork::Execute)

Batch #10682 by cremane: 0 byte-identical, 1 confirmed by peer review.

- fn_03968 CEmblemDataDownloadAsyncWork::Execute: logic confirmed by peer review

Peer-reviewed-by: ragnarok-clanker, Tanke, dori
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).

Source/Contents/Emblems/EmblemDataDownloadAsyncWork.cpp

@@ -2,6 +2,8 @@
 #include "Contents/Emblems/EmblemDownload.h"
 #include "Network/Http/CURLPostHander.h"
 #include "Network/TextEncoding.h"
+#include "Utility/Cipher/XorBytes.h"
+#include "Utility/Text/FormatString.h"
 
 #include <stdio.h>
 #include <windows.h>
@@ -11,17 +13,53 @@ namespace {
   constexpr char sourceFile[] = "C:\\repositories\\RagnarokClient\\RagnarokClient\\Contents\\Emblem\\CEmblemDataDownloadAsyncWork.cpp";
 
   // INLINED
-  AsyncDiagnostic Diagnostic(bool success, const char* text, std::uint32_t line) {
+  __forceinline AsyncDiagnostic Diagnostic(bool success, const char* text, std::uint32_t line) {
     std::string message = text;
     return AsyncDiagnostic(&success, &message, sourceFile, &line);
   }
+
+  template <std::size_t Length, std::uint64_t Key>
+  class EncryptedName {
+  public:
+    explicit EncryptedName(const std::uint8_t (&source)[Length]) : m_encrypted(true) {
+      for (std::uint64_t index = 0; index < Length; ++index) {
+        this->m_text[index] = source[index];
+      }
+    }
+
+    ~EncryptedName() {
+      for (std::uint64_t index = 0; index < Length; ++index) {
+        this->m_text[index] = 0;
+      }
+    }
+
+    const char* Text() {
+      if (this->m_encrypted) {
+        utility::XorBytes(this->m_text, Length, Key);
+        this->m_encrypted = false;
+      }
+
+      return reinterpret_cast<const char*>(this->m_text);
+    }
+
+  private:
+    /* 0000 */ std::uint8_t m_text[Length];
+    bool m_encrypted;
+  };
+
+  // INLINED
+  template <std::uint64_t Key, std::size_t Length>
+  const char* DecryptName(const std::uint8_t (&source)[Length]) {
+    thread_local EncryptedName<Length, Key> name(source);
+    return name.Text();
+  }
 }
 
 // OFFSET: 0x005E9C00
 // FUNCTION: fn_03963
 CEmblemDataDownloadAsyncWork::CEmblemDataDownloadAsyncWork()
-    : NAsyncWork("Emblem_Download"), m_accountId(0), m_guildId(0), m_version(0), m_responseCode(500), m_diagnostic(Diagnostic(false, "unknwon", 29)),
-      m_connection(nullptr) {
+    : NAsyncWork("Emblem_Download"), m_accountId(0), m_guildId(0), m_version(0), m_responseCode(500),
+      m_diagnostic(Diagnostic(false, DecryptName<0xC52FB5FBB94FF917ULL>({0x62, 0x97, 0x24, 0xD7, 0x8C, 0xDA, 0x41, 0xC5}), 29)), m_connection(nullptr) {
 }
 
 // INLINED
@@ -45,7 +83,8 @@ void CEmblemDataDownloadAsyncWork::Bind(
   this->m_accountName = accountName;
   this->m_guildId = guildId;
   this->m_version = version;
-  AsyncDiagnostic diagnostic = Diagnostic(false, "unknwon", 57);
+  const std::uint8_t unknown[] = {0xB0, 0xA3, 0xEC, 0x9B, 0xD6, 0xCC, 0x89, 0x93};
+  AsyncDiagnostic diagnostic = Diagnostic(false, DecryptName<0x93E7A3A1F587CDC5ULL>(unknown), 57);
   this->m_diagnostic.MoveFrom(diagnostic);
   this->m_connection = &connection;
 }
@@ -54,25 +93,32 @@ void CEmblemDataDownloadAsyncWork::Bind(
 // FUNCTION: fn_03968
 bool CEmblemDataDownloadAsyncWork::Execute() {
   char account[64] = {}, guild[64] = {}, version[10] = {};
-  _snprintf_s(account, sizeof(account), _TRUNCATE, "%d", static_cast<std::int32_t>(this->m_accountId));
-  _snprintf_s(guild, sizeof(guild), _TRUNCATE, "%d", static_cast<std::int32_t>(this->m_guildId));
-  _snprintf_s(version, sizeof(version), _TRUNCATE, "%d", static_cast<std::int32_t>(this->m_version));
+  StringFormat(account, sizeof(account), _TRUNCATE, "%lu", this->m_accountId);
+  StringFormat(guild, sizeof(guild), _TRUNCATE, "%lu", this->m_guildId);
+  StringFormat(version, sizeof(version), _TRUNCATE, "%lu", this->m_version);
   std::string name = ToUtf8(this->m_accountName);
 
   CCURLPostHander handler(this->m_url);
-  handler.AddField("AID", account, 4);
-  handler.AddField("AuthToken", this->m_token, 4);
-  handler.AddField("WorldName", name, 4);
-  handler.AddField("GDID", guild, 4);
-  handler.AddField("Version", version, 4);
+  const std::uint8_t aid[] = {0xE0, 0x74, 0xDB, 0xD7};
+  handler.AddField(DecryptName<0x59278F63D79F3DA1ULL>(aid), account, 4);
+  const std::uint8_t authToken[] = {0xF6, 0x72, 0x23, 0xA5, 0x7F, 0x88, 0x40, 0xE4, 0xD9, 0x07};
+  handler.AddField(DecryptName<0x812BE72BCD5707B7ULL>(authToken), this->m_token, 4);
+  const std::uint8_t worldName[] = {0x02, 0x92, 0xC7, 0xB7, 0xA3, 0xFF, 0x14, 0x5E, 0x30, 0xFD};
+  handler.AddField(DecryptName<0x3375B1C7DBB5FD55ULL>(worldName), name, 4);
+  const std::uint8_t gdid[] = {0x58, 0x75, 0x84, 0xA3, 0xED};
+  handler.AddField(DecryptName<0x1D6D75EDE7CD311FULL>(gdid), guild, 4);
+  const std::uint8_t versionName[] = {0x3B, 0x06, 0x47, 0x5E, 0xCC, 0x6C, 0xE1, 0xD9};
+  handler.AddField(DecryptName<0xD98F03A52D35636DULL>(versionName), version, 4);
 
   if (handler.Perform() == 0) {
     this->m_responseCode = static_cast<int>(handler.ResponseCode());
     this->m_response = handler.Response();
-    AsyncDiagnostic diagnostic = Diagnostic(true, "good", 96);
+    const std::uint8_t good[] = {0xB6, 0x76, 0xF2, 0xEB, 0x6B};
+    AsyncDiagnostic diagnostic = Diagnostic(true, DecryptName<0x0F0F8B6B8F9D19D1ULL>(good), 96);
     this->m_diagnostic.MoveFrom(diagnostic);
   } else {
-    AsyncDiagnostic diagnostic = Diagnostic(false, "fail", 105);
+    const std::uint8_t fail[] = {0x6F, 0xC8, 0x2E, 0x33, 0xD9};
+    AsyncDiagnostic diagnostic = Diagnostic(false, DecryptName<0xD3755DD95F47A909ULL>(fail), 105);
     this->m_diagnostic.MoveFrom(diagnostic);
   }