Adds support to USER collection, setuid action and USERID variable

More details on: #1026, #1024, #1048

src/actions/set_uid.cc

@@ -0,0 +1,56 @@
+/*
+ * 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/set_uid.h"
+
+#include <iostream>
+#include <string>
+
+#include "modsecurity/transaction.h"
+#include "modsecurity/rule.h"
+#include "src/macro_expansion.h"
+#include "src/utils.h"
+
+namespace modsecurity {
+namespace actions {
+
+
+bool SetUID::init(std::string *error) {
+    m_collection_key = std::string(action, 0, action.length());
+
+    if (m_collection_key.empty()) {
+        return false;
+    }
+
+    return true;
+}
+
+
+bool SetUID::evaluate(Rule *rule, Transaction *t) {
+    std::string colNameExpanded = MacroExpansion::expand(m_collection_key, t);
+
+#ifndef NO_LOGS
+    t->debug(8, "User collection initiated with value: \'"
+        + colNameExpanded + "\'.");
+#endif
+
+    t->m_collections.m_user_collection_key = colNameExpanded;
+    t->m_collections.storeOrUpdateFirst("USERID", colNameExpanded);
+
+    return true;
+}
+
+}  // namespace actions
+}  // namespace modsecurity

src/actions/set_uid.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"
+
+#ifndef SRC_ACTIONS_SET_UID_H_
+#define SRC_ACTIONS_SET_UID_H_
+
+class Transaction;
+
+namespace modsecurity {
+class Transaction;
+namespace actions {
+
+
+class SetUID : public Action {
+ public:
+    explicit SetUID(std::string _action)
+        : Action(_action) { }
+
+    bool evaluate(Rule *rule, Transaction *transaction) override;
+    bool init(std::string *error) override;
+ private:
+    std::string m_collection_key;
+};
+
+
+}  // namespace actions
+}  // namespace modsecurity
+
+#endif  // SRC_ACTIONS_SET_UID_H_