First release of open-appsec source code

components/security_apps/waap/waap_clib/ParserUrlEncode.h

@@ -0,0 +1,57 @@
+// Copyright (C) 2022 Check Point Software Technologies Ltd. All rights reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef __PARSER_URL_ENCODE_H__29ebe806
+#define __PARSER_URL_ENCODE_H__29ebe806
+
+#include "ParserBase.h"
+#include <string.h>
+
+#define MAX_URLENCODE_ESCAPED_SIZE 16
+
+class ParserUrlEncode : public ParserBase {
+public:
+    ParserUrlEncode(IParserStreamReceiver &receiver, char separatorChar = '&', bool should_decode_per = true);
+    virtual ~ParserUrlEncode();
+    size_t push(const char *data, size_t data_len);
+    void finish();
+    virtual const std::string &name() const;
+    bool error() const;
+    virtual size_t depth() { return 1; }
+
+private:
+    enum state {
+        s_start,
+        s_key_start,
+        s_key,
+        s_key_escaped1,
+        s_key_escaped2,
+        s_value_start,
+        s_value,
+        s_value_escaped1,
+        s_value_escaped2,
+        s_end,
+        s_error
+    };
+
+    IParserStreamReceiver &m_receiver;
+    enum state m_state;
+    unsigned char m_escapedLen; // count of characters loaded in m_escaped[] buffer
+    char m_escaped[MAX_URLENCODE_ESCAPED_SIZE];
+    char m_separatorChar;
+    char m_escapedCharCandidate;
+    bool should_decode_percent;
+    static const std::string m_parserName;
+};
+
+#endif // __PARSER_URL_ENCODE_H__29ebe806