Adds support to base64 encode transformation

src/Makefile.am

@@ -101,6 +101,7 @@ ACTIONS = \
 	actions/skip_after.cc \
 	actions/tag.cc \
 	actions/transformations/base64_decode.cc \
+	actions/transformations/base64_encode.cc \
 	actions/transformations/base64_decode_ext.cc \
 	actions/transformations/cmd_line.cc \
 	actions/transformations/compress_whitespace.cc \

src/actions/transformations/base64_encode.cc

@@ -0,0 +1,45 @@
+/*
+ * ModSecurity, http://www.modsecurity.org/
+ * Copyright (c) 2015 Trustwave Holdings, Inc. (http://www.trustwave.com/)
+ *
+ * You may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * If any of the files related to licensing are missing or if you have any
+ * other questions related to licensing please contact Trustwave Holdings, Inc.
+ * directly using the email address security@modsecurity.org.
+ *
+ */
+
+#include "actions/transformations/base64_encode.h"
+
+#include <iostream>
+#include <string>
+#include <algorithm>
+#include <functional>
+#include <cctype>
+#include <locale>
+
+#include "modsecurity/transaction.h"
+#include "actions/transformations/transformation.h"
+#include "utils/base64.h"
+
+
+namespace modsecurity {
+namespace actions {
+namespace transformations {
+
+
+std::string Base64Encode::evaluate(std::string value,
+    Transaction *transaction) {
+    std::string ret = Utils::Base64::encode(value);
+
+    return ret;
+}
+
+
+}  // namespace transformations
+}  // namespace actions
+}  // namespace modsecurity

src/actions/transformations/base64_encode.h

@@ -0,0 +1,45 @@
+/*
+ * ModSecurity, http://www.modsecurity.org/
+ * Copyright (c) 2015 Trustwave Holdings, Inc. (http://www.trustwave.com/)
+ *
+ * You may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * If any of the files related to licensing are missing or if you have any
+ * other questions related to licensing please contact Trustwave Holdings, Inc.
+ * directly using the email address security@modsecurity.org.
+ *
+ */
+
+#include <string>
+
+#include "actions/action.h"
+#include "actions/transformations/transformation.h"
+
+#ifndef SRC_ACTIONS_TRANSFORMATIONS_BASE64_ENCODE_H_
+#define SRC_ACTIONS_TRANSFORMATIONS_BASE64_ENCODE_H_
+
+#ifdef __cplusplus
+namespace modsecurity {
+class Transaction;
+
+namespace actions {
+namespace transformations {
+
+class Base64Encode : public Transformation {
+ public:
+    explicit Base64Encode(std::string action) : Transformation(action) { };
+
+    std::string evaluate(std::string exp,
+        Transaction *transaction) override;
+};
+
+}  // namespace transformations
+}  // namespace actions
+}  // namespace modsecurity
+
+#endif
+
+#endif  // SRC_ACTIONS_TRANSFORMATIONS_BASE64_ENCODE_H_

src/actions/transformations/transformation.cc

@@ -24,6 +24,7 @@
 #include "actions/action.h"
 #include "actions/transformations/base64_decode_ext.h"
 #include "actions/transformations/base64_decode.h"
+#include "actions/transformations/base64_encode.h"
 #include "actions/transformations/cmd_line.h"
 #include "actions/transformations/compress_whitespace.h"
 #include "actions/transformations/css_decode.h"
@@ -75,6 +76,7 @@ std::string Transformation::evaluate(std::string value,
 Transformation* Transformation::instantiate(std::string a) {
     IF_MATCH(base64_decode_ext) { return new Base64DecodeExt(a); }
     IF_MATCH(base64Decode) { return new Base64Decode(a); }
+    IF_MATCH(base64Encode) { return new Base64Encode(a); }
     IF_MATCH(cmd_line) { return new CmdLine(a); }
     IF_MATCH(compress_whitespace) { return new CompressWhitespace(a); }
     IF_MATCH(cssDecode) { return new CssDecode(a); }