From d86a984e258c9e445ce9962ddf722e57391a1484 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Sun, 7 Apr 2019 03:30:15 +0800
Subject: [PATCH] Correctly handle '+' sign in x-www-form-urlencoded data

Fixes #10451.
---
 src/base/http/requestparser.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/base/http/requestparser.cpp b/src/base/http/requestparser.cpp
index a12ab8a95..aab7edcfe 100644
--- a/src/base/http/requestparser.cpp
+++ b/src/base/http/requestparser.cpp
@@ -205,7 +205,10 @@ bool RequestParser::parsePostMessage(const QByteArray &data)
 
     // application/x-www-form-urlencoded
     if (contentTypeLower.startsWith(CONTENT_TYPE_FORM_ENCODED)) {
-        QListIterator<QStringPair> i(QUrlQuery(data).queryItems(QUrl::FullyDecoded));
+        // [URL Standard] 5.1 application/x-www-form-urlencoded parsing
+        const QByteArray processedData = QByteArray(data).replace('+', ' ');
+
+        QListIterator<QStringPair> i(QUrlQuery(processedData).queryItems(QUrl::FullyDecoded));
         while (i.hasNext()) {
             const QStringPair pair = i.next();
             m_request.posts[pair.first] = pair.second;