LibHTTP: Treat EOF on a non-Finished state as an error

Author: https://github.com/alimpfard
Commit: 830b0e8f2d
Pull-request: https://github.com/SerenityOS/serenity/pull/10350
Reviewed-by: https://github.com/awesomekling ✅

Userland/Libraries/LibHTTP/Job.cpp

@@ -132,6 +132,9 @@ void Job::on_socket_connected()
             return;
         }
 
+        if (eof())
+            return deferred_invoke([this] { did_fail(Core::NetworkJob::Error::ProtocolFailed); });
+
         if (m_state == State::InStatus) {
             if (!can_read_line()) {
                 dbgln_if(JOB_DEBUG, "Job {} cannot read line", m_request.url());