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fix: drop invalid chunk sizes

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This commit is contained in:
neru
2026-04-11 12:19:48 -03:00
parent acfdf7b3ef
commit fe71decd38
1 changed files with 6 additions and 2 deletions
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src/unlocker/proxy.cpp
+6 -2
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@@ -331,7 +331,9 @@ void Proxy::handleClient(SOCKET clientSocket)
{
size_t le = clientStream.buffer.find("\r\n", idx);
if (le == std::string::npos) break;
int cs = stoiSafe(clientStream.buffer.substr(idx, le - idx), 0, 16);
int cs = stoiSafe(clientStream.buffer.substr(idx, le - idx), -1, 16);
if (cs < 0) return;
if (idx + (le - idx) + 2 + cs + 2 > clientStream.buffer.size()) break;
if (cs > 0) fullBody.append(clientStream.buffer, le + 2, cs);
idx = le + 2 + cs + 2;
@@ -402,7 +404,9 @@ void Proxy::handleClient(SOCKET clientSocket)
{
size_t le = serverStream.buffer.find("\r\n", idx);
if (le == std::string::npos) break;
int cs = stoiSafe(serverStream.buffer.substr(idx, le - idx), 0, 16);
int cs = stoiSafe(serverStream.buffer.substr(idx, le - idx), -1, 16);
if (cs < 0) return;
if (idx + (le - idx) + 2 + cs + 2 > serverStream.buffer.size()) break;
if (cs > 0) fullBody.append(serverStream.buffer, le + 2, cs);
idx = le + 2 + cs + 2;