Adds support to setenv action

Issue #1044

Author: Felipe Zimmerle

CHANGES

@@ -1,6 +1,8 @@
 v3.0.3 - YYYY-MMM-DD (to be released)
 -------------------------------------
 
+ - Adds support to setenv action.
+   [Issue #1044 - @zimmerle]
  - Adds new transaction constructor that accepts the transaction id
    as parameter.
    [Issue #1627 - @defanator, @zimmerle]

Makefile.am

@@ -117,6 +117,7 @@ TESTS+=test/test-cases/regression/variable-MATCHED_VAR.json
 TESTS+=test/test-cases/regression/variable-REQUEST_URI.json
 TESTS+=test/test-cases/regression/variable-ENV.json
 TESTS+=test/test-cases/regression/variable-URLENCODED_ERROR.json
+TESTS+=test/test-cases/regression/action-setenv.json
 TESTS+=test/test-cases/regression/action-setsid.json
 TESTS+=test/test-cases/regression/variable-AUTH_TYPE.json
 TESTS+=test/test-cases/regression/variable-TIME_DAY.json

src/Makefile.am

@@ -136,6 +136,7 @@ ACTIONS = \
 	actions/rev.cc \
 	actions/rule_id.cc \
 	actions/severity.cc \
+	actions/set_env.cc \
 	actions/set_rsc.cc \
 	actions/set_sid.cc \
 	actions/set_uid.cc \

src/actions/set_env.cc

@@ -0,0 +1,48 @@
+/*
+ * 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 [email protected].
+ *
+ */
+
+#include "src/actions/set_env.h"
+
+#include <iostream>
+#include <string>
+
+#include "modsecurity/transaction.h"
+#include "modsecurity/rule.h"
+#include "src/utils/string.h"
+
+namespace modsecurity {
+namespace actions {
+
+
+bool SetENV::init(std::string *error) {
+    return true;
+}
+
+
+bool SetENV::evaluate(Rule *rule, Transaction *t) {
+    std::string colNameExpanded(m_string->evaluate(t));
+
+#ifndef NO_LOGS
+    t->debug(8, "Setting envoriment variable: "
+        + colNameExpanded + ".");
+#endif
+
+    putenv((char *)colNameExpanded.c_str());
+
+    return true;
+}
+
+}  // namespace actions
+}  // namespace modsecurity

src/actions/set_env.h

@@ -0,0 +1,53 @@
+/*
+ * 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 [email protected].
+ *
+ */
+
+#include <string>
+#include <utility>
+#include <memory>
+
+#include "modsecurity/actions/action.h"
+#include "src/run_time_string.h"
+
+#ifndef SRC_ACTIONS_SET_ENV_H_
+#define SRC_ACTIONS_SET_ENV_H_
+
+class Transaction;
+
+namespace modsecurity {
+class Transaction;
+namespace actions {
+
+
+class SetENV : public Action {
+ public:
+    explicit SetENV(std::string _action)
+        : Action(_action) { }
+
+    explicit SetENV(std::unique_ptr<RunTimeString> z)
+        : Action("setenv", RunTimeOnlyIfMatchKind),
+            m_string(std::move(z)) { }
+
+    bool evaluate(Rule *rule, Transaction *transaction) override;
+    bool init(std::string *error) override;
+
+ private:
+    std::unique_ptr<RunTimeString> m_string;
+};
+
+
+}  // namespace actions
+}  // namespace modsecurity
+
+#endif  // SRC_ACTIONS_SET_ENV_H_