mirror of
https://github.com/owasp-modsecurity/ModSecurity.git
synced 2025-08-14 05:45:59 +03:00
Changes RULE variable group to be save at transient collection
This commit is contained in:
parent
2930d40d57
commit
a776cce6d7
@ -24,6 +24,7 @@
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#define HEADERS_MODSECURITY_RULE_H_
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#include "modsecurity/transaction.h"
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#include "modsecurity/collection/variable.h"
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#ifdef __cplusplus
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@ -51,11 +52,26 @@ class Rule {
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~Rule();
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bool evaluate(Transaction *transaction);
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bool evaluateActions(Transaction *transaction);
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std::vector<const collection::Variable *> getFinalVars(Transaction *trasn);
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void executeActionsAfterFullMatch(Transaction *trasn,
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bool containsDisruptive, RuleMessage *ruleMessage);
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std::vector<std::string> executeSecDefaultActionTransofrmations(
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Transaction *trasn, std::string &value, bool multiMatch);
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bool executeOperatorAt(Transaction *trasn, std::string key,
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std::string value);
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void executeActionsIndependentOfChainedRuleResult(Transaction *trasn,
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bool *b, RuleMessage *ruleMessage);
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std::string resolveMatchMessage(std::string key, std::string value);
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void updateMatchedVars(Transaction *trasn, std::string key,
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std::string value);
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void cleanMatchedVars(Transaction *trasn);
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void updateRulesVariable(Transaction *trasn);
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operators::Operator *op;
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std::vector<actions::Action *> actions_conf;
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std::vector<actions::Action *> actions_runtime_pre;
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std::vector<actions::Action *> actions_runtime_pos;
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std::vector<actions::Action *> m_actionsConf;
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std::vector<actions::Action *> m_actionsRuntimePre;
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std::vector<actions::Action *> m_actionsRuntimePos;
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std::vector<std::string> getActionNames();
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std::vector<actions::Action *> getActionsByName(const std::string& name);
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@ -87,7 +103,6 @@ class Rule {
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std::string m_fileName;
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int m_lineNumber;
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std::string m_log_message;
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std::string m_log_data;
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int m_accuracy;
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int m_maturity;
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@ -82,6 +82,9 @@ bool Severity::evaluate(Rule *rule, Transaction *transaction,
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if (transaction->m_highestSeverityAction > this->m_severity) {
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transaction->m_highestSeverityAction = this->m_severity;
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}
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transaction->m_collections.storeOrUpdateFirst("RULE:severity",
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std::to_string(m_severity));
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return true;
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}
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@ -73,7 +73,7 @@ std::string MacroExpansion::expand(const std::string& input,
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std::string var = std::string(variable, collection + 1,
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variable.length() - (collection + 1));
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if (utils::string::toupper(col) == "RULE") {
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/*if (utils::string::toupper(col) == "RULE") {
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if (rule == NULL) {
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transaction->debug(9, "macro expansion: cannot resolve " \
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"RULE variable without the Rule object");
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@ -89,6 +89,10 @@ std::string MacroExpansion::expand(const std::string& input,
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for (auto *i : l) {
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delete i;
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}
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}*/
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if (utils::string::toupper(col) == "RULE") {
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variableValue = transaction->m_collections.resolveFirst(
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"RULE:" + var);
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} else {
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variableValue = transaction->m_collections.resolveFirst(col,
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var);
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@ -943,6 +943,13 @@ var:
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}
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| RUN_TIME_VAR_RULE
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{
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std::string name($1);
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CHECK_VARIATION_DECL
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CHECK_VARIATION(&) { var = new Count(new Variable(name, Variable::VariableKind::DirectVariable)); }
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CHECK_VARIATION(!) { var = new Exclusion(new Variable(name, Variable::VariableKind::DirectVariable)); }
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if (!var) { var = new Variable(name, Variable::VariableKind::DirectVariable); }
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$$ = var;
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/*
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std::string name($1);
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CHECK_VARIATION_DECL
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CHECK_VARIATION(&) { var = new Count(
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@ -951,6 +958,7 @@ var:
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new modsecurity::Variables::Rule(name)); }
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if (!var) { var = new modsecurity::Variables::Rule(name); }
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$$ = var;
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*/
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}
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;
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763
src/rule.cc
763
src/rule.cc
@ -34,6 +34,9 @@
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#include "modsecurity/rules.h"
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#include "modsecurity/rule_message.h"
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#include "src/macro_expansion.h"
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#include "src/actions/msg.h"
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#include "src/actions/log_data.h"
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#include "src/actions/severity.h"
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using modsecurity::Variables::Variations::Exclusion;
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@ -49,19 +52,19 @@ Rule::~Rule() {
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if (op != NULL) {
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delete op;
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}
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while (actions_conf.empty() == false) {
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auto *a = actions_conf.back();
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actions_conf.pop_back();
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while (m_actionsConf.empty() == false) {
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auto *a = m_actionsConf.back();
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m_actionsConf.pop_back();
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delete a;
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}
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while (actions_runtime_pre.empty() == false) {
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auto *a = actions_runtime_pre.back();
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actions_runtime_pre.pop_back();
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while (m_actionsRuntimePre.empty() == false) {
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auto *a = m_actionsRuntimePre.back();
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m_actionsRuntimePre.pop_back();
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delete a;
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}
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while (actions_runtime_pos.empty() == false) {
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auto *a = actions_runtime_pos.back();
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actions_runtime_pos.pop_back();
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while (m_actionsRuntimePos.empty() == false) {
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auto *a = m_actionsRuntimePos.back();
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m_actionsRuntimePos.pop_back();
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delete a;
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}
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while (variables != NULL && variables->empty() == false) {
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@ -116,13 +119,13 @@ Rule::Rule(Operator *_op,
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if (actions != NULL) {
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for (Action *a : *actions) {
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if (a->action_kind == Action::ConfigurationKind) {
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actions_conf.push_back(a);
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m_actionsConf.push_back(a);
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a->evaluate(this, NULL);
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} else if (a->action_kind
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== Action::RunTimeBeforeMatchAttemptKind) {
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actions_runtime_pre.push_back(a);
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m_actionsRuntimePre.push_back(a);
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} else if (a->action_kind == Action::RunTimeOnlyIfMatchKind) {
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actions_runtime_pos.push_back(a);
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m_actionsRuntimePos.push_back(a);
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} else {
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std::cout << "General failure, action: " << a->m_name;
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std::cout << " has an unknown type." << std::endl;
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@ -148,13 +151,13 @@ Rule::Rule(Operator *_op,
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std::vector<std::string> Rule::getActionNames() {
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std::vector<std::string> a;
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for (auto &z : this->actions_runtime_pos) {
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for (auto &z : this->m_actionsRuntimePos) {
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a.push_back(z->m_name);
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}
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for (auto &z : this->actions_runtime_pre) {
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for (auto &z : this->m_actionsRuntimePre) {
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a.push_back(z->m_name);
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}
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for (auto &z : this->actions_conf) {
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for (auto &z : this->m_actionsConf) {
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a.push_back(z->m_name);
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}
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@ -163,164 +166,220 @@ std::vector<std::string> Rule::getActionNames() {
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bool Rule::evaluateActions(Transaction *trasn) {
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return true;
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}
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void Rule::updateMatchedVars(Transaction *trasn, std::string key,
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std::string value) {
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trasn->debug(4, "Matched vars updated.");
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trasn->m_collections.storeOrUpdateFirst("MATCHED_VAR", value);
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trasn->m_collections.storeOrUpdateFirst("MATCHED_VAR_NAME", key);
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trasn->m_collections.store("MATCHED_VARS:" + key, value);
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trasn->m_collections.store("MATCHED_VARS_NAMES:" + key, key);
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}
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void Rule::cleanMatchedVars(Transaction *trasn) {
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trasn->debug(4, "Matched vars cleaned.");
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trasn->m_collections.storeOrUpdateFirst("MATCHED_VAR", "");
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trasn->m_collections.del("MATCHED_VARS_NAME");
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trasn->m_collections.del("MATCHED_VARS");
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trasn->m_collections.del("MATCHED_VARS_NAMES");
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}
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void Rule::updateRulesVariable(Transaction *trasn) {
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if (rule_id != 0) {
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trasn->m_collections.storeOrUpdateFirst("RULE:id",
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std::to_string(rule_id));
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}
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if (m_rev.empty() == false) {
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trasn->m_collections.storeOrUpdateFirst("RULE:rev", m_rev);
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}
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if (getActionsByName("msg").size() > 0) {
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actions::Msg *msg = dynamic_cast<actions::Msg*>(
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getActionsByName("msg")[0]);
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trasn->m_collections.storeOrUpdateFirst("RULE:msg", msg->data(trasn));
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}
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if (getActionsByName("logdata").size() > 0) {
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actions::LogData *data = dynamic_cast<actions::LogData*>(
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getActionsByName("logdata")[0]);
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trasn->m_collections.storeOrUpdateFirst("RULE:logdata",
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data->data(trasn));
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}
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if (getActionsByName("severity").size() > 0) {
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actions::Severity *data = dynamic_cast<actions::Severity*>(
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getActionsByName("severity")[0]);
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trasn->m_collections.storeOrUpdateFirst("RULE:severity",
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std::to_string(data->m_severity));
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}
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}
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std::string Rule::resolveMatchMessage(std::string key, std::string value) {
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std::string ret = this->op->m_match_message;
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if (ret.empty() == true) {
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ret = "Matched \"Operator `" + this->op->m_op + "' with parameter `" +
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utils::string::limitTo(200, this->op->m_param) +
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"' against variable `" + key + "' (Value: `" +
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utils::string::limitTo(100, utils::string::toHexIfNeeded(value)) +
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"' ) \" at " + key;
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}
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return ret;
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}
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void Rule::executeActionsIndependentOfChainedRuleResult(Transaction *trasn,
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bool *containsDisruptive, RuleMessage *ruleMessage) {
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for (Action *a : this->m_actionsRuntimePos) {
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if (a->isDisruptive() == true) {
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if (a->m_name == "pass") {
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trasn->debug(4, "Rule contains a `pass' action");
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} else {
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*containsDisruptive = true;
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}
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} else {
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if (a->m_name == "setvar"
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|| a->m_name == "msg"
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|| a->m_name == "log") {
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trasn->debug(4, "Running [I] (_non_ disruptive) " \
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"action: " + a->m_name);
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a->evaluate(this, trasn, ruleMessage);
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}
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}
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}
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for (auto &z : ruleMessage->m_tmp_actions) {
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trasn->m_actions.push_back(z);
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}
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}
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bool Rule::executeOperatorAt(Transaction *trasn, std::string key,
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std::string value) {
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clock_t begin = clock();
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clock_t end;
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double elapsed_s = 0;
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bool ret;
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trasn->debug(9, "Target value: \"" + utils::string::limitTo(80,
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utils::string::toHexIfNeeded(value)) \
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+ "\" (Variable: " + key + ")");
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ret = this->op->evaluateInternal(trasn, this, value);
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if (ret == false) {
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return false;
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}
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end = clock();
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elapsed_s = static_cast<double>(end - begin) / CLOCKS_PER_SEC;
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trasn->debug(4, "Operator completed in " + \
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std::to_string(elapsed_s) + " seconds");
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return ret;
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}
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// FIXME: this should be a list instead of a vector, keeping the but
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// of v2 alive.
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std::vector<std::string> Rule::executeSecDefaultActionTransofrmations(
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Transaction *trasn, std::string &value, bool multiMatch) {
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int none = 0;
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bool containsDisruptive = false;
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// int transformations = 0;
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for (Action *a : this->actions_runtime_pre) {
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int transformations = 0;
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std::vector<std::string> ret;
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if (multiMatch == true) {
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ret.push_back(value);
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ret.push_back(value);
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}
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for (Action *a : this->m_actionsRuntimePre) {
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if (a->m_isNone) {
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none++;
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}
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}
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#ifndef NO_LOGS
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trasn->debug(4, "Running unconditional rule.");
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#endif
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// Check for transformations on the SecDefaultAction
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// Notice that first we make sure that won't be a t:none
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// on the target rule.
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if (none == 0) {
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/*
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for (Action *a : trasn->m_rules->defaultActions[this->phase]) {
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if (a->action_kind == actions::Action::RunTimeBeforeMatchAttemptKind) {
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value = a->evaluate(value, trasn);
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if (a->action_kind \
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== actions::Action::RunTimeBeforeMatchAttemptKind) {
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std::string oldValue = value;
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if (multiMatch) {
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oldValue = ret.back();
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}
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std::string newValue = a->evaluate(oldValue, trasn);
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if (multiMatch == true) {
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if (newValue != oldValue) {
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ret.push_back(newValue);
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}
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} else {
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value = newValue;
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}
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trasn->debug(9, "(SecDefaultAction) T (" + \
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std::to_string(transformations) + ") " + \
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a->name + ": \"" + value +"\"");
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transformations++;
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a->m_name + ": \"" + \
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utils::string::limitTo(80, newValue) +"\"");
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transformations++;
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}
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}
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*/
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}
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for (Action *a : this->actions_runtime_pre) {
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/*
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for (Action *a : this->m_actionsRuntimePre) {
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if (none == 0) {
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value = a->evaluate(value, trasn);
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std::string oldValue = value;
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if (multiMatch) {
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oldValue = ret.back();
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}
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std::string newValue = a->evaluate(oldValue, trasn);
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if (multiMatch == true) {
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if (newValue != oldValue) {
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ret.push_back(newValue);
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}
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} else {
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value = newValue;
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}
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trasn->debug(9, " T (" + \
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std::to_string(transformations) + ") " + \
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a->name + ": \"" + value +"\"");
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transformations++;
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a->m_name + ": \"" + \
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utils::string::limitTo(80, newValue) + "\"");
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transformations++;
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}
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*/
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if (a->m_isNone) {
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none--;
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}
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}
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for (Action *a : this->actions_runtime_pos) {
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if (a->isDisruptive() == false) {
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#ifndef NO_LOGS
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trasn->debug(4, "Running [III] (_non_ disruptive) action: " +
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a->m_name + ".");
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#endif
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a->evaluate(this, trasn);
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} else {
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containsDisruptive = true;
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if (multiMatch == true) {
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// v2 checks the last entry twice. Don't know why.
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ret.push_back(ret.back());
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trasn->debug(9, "multiMatch is enabled. " \
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+ std::to_string(ret.size()) + \
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" values to be tested.");
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for (const std::string &a : ret) {
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trasn->debug(9, " - " + a);
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}
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} else {
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ret.push_back(value);
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}
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for (Action *a : trasn->m_rules->defaultActions[this->phase]) {
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if (a->action_kind == actions::Action::RunTimeOnlyIfMatchKind) {
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if (a->isDisruptive()) {
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if (containsDisruptive) {
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#ifndef NO_LOGS
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trasn->debug(4, "(SecDefaultAction) " \
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"_ignoring_ action: " + a->m_name + \
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" (rule contains a disruptive action)");
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#endif
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} else {
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if (trasn->m_rules->m_secRuleEngine
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== Rules::EnabledRuleEngine) {
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#ifndef NO_LOGS
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trasn->debug(4, "(SecDefaultAction) " \
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"Running action: " + a->m_name + \
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" (rule _does not_ contains a " \
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"disruptive action)");
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#endif
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a->evaluate(this, trasn);
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} else {
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#ifndef NO_LOGS
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trasn->debug(4, "(SecDefaultAction) " \
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"_Not_ running action: " + a->m_name + \
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". Rule _does not_ contains a " \
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"disruptive action, but SecRuleEngine is not On.");
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#endif
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}
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}
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} else {
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#ifndef NO_LOGS
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trasn->debug(4, "(SecDefaultAction) Running action: " + \
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a->m_name);
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a->evaluate(this, trasn);
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#endif
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}
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}
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}
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for (Action *a : this->actions_runtime_pos) {
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if (a->isDisruptive()
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&& trasn->m_rules->m_secRuleEngine
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== Rules::EnabledRuleEngine) {
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#ifndef NO_LOGS
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trasn->debug(4, "Running (disruptive) action: " + a->m_name);
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#endif
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a->evaluate(this, trasn);
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} else if (a->isDisruptive()) {
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#ifndef NO_LOGS
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trasn->debug(4, "Not running disruptive action: " + \
|
||||
a->m_name + ". SecRuleEngine is not On");
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
bool Rule::evaluate(Transaction *trasn) {
|
||||
bool ret = false;
|
||||
bool globalRet = false;
|
||||
std::vector<Variable *> *variables = this->variables;
|
||||
RuleMessage *ruleMessage = NULL;
|
||||
|
||||
trasn->m_matched.clear();
|
||||
|
||||
if (m_secmarker == true) {
|
||||
return true;
|
||||
}
|
||||
if (m_unconditional == true) {
|
||||
return evaluateActions(trasn);
|
||||
}
|
||||
|
||||
for (auto &i : trasn->m_ruleRemoveById) {
|
||||
if (rule_id != i) {
|
||||
continue;
|
||||
}
|
||||
trasn->debug(9, "Rule id: " + std::to_string(rule_id) +
|
||||
" was skipped due to an ruleRemoveById action...");
|
||||
return true;
|
||||
}
|
||||
|
||||
ruleMessage = new modsecurity::RuleMessage(this, m_log_message);
|
||||
|
||||
#ifndef NO_LOGS
|
||||
std::string eparam = MacroExpansion::expand(this->op->m_param, trasn);
|
||||
|
||||
if (this->op->m_param != eparam) {
|
||||
eparam = "\"" + eparam + "\" Was: \"" + this->op->m_param + "\"";
|
||||
} else {
|
||||
eparam = "\"" + eparam + "\"";
|
||||
}
|
||||
|
||||
trasn->debug(4, "(Rule: " + std::to_string(rule_id) \
|
||||
+ ") Executing operator \"" + this->op->m_op \
|
||||
+ "\" with param " \
|
||||
+ eparam \
|
||||
+ " against " \
|
||||
+ Variable::to_s(variables) + ".");
|
||||
|
||||
clock_t begin = clock();
|
||||
#endif
|
||||
|
||||
std::vector<const collection::Variable *> Rule::getFinalVars(
|
||||
Transaction *trasn) {
|
||||
std::list<std::string> exclusions;
|
||||
std::vector<Variable *> *variables = this->variables;
|
||||
std::vector<const collection::Variable *> finalVars;
|
||||
|
||||
for (int i = 0; i < variables->size(); i++) {
|
||||
Variable *variable = variables->at(i);
|
||||
if (variable->m_isExclusion) {
|
||||
@ -335,17 +394,16 @@ bool Rule::evaluate(Transaction *trasn) {
|
||||
}
|
||||
|
||||
for (int i = 0; i < variables->size(); i++) {
|
||||
int transformations = 0;
|
||||
Variable *variable = variables->at(i);
|
||||
std::vector<const collection::Variable *> e;
|
||||
bool ignoreVariable = false;
|
||||
|
||||
if (variable->m_isExclusion) {
|
||||
continue;
|
||||
}
|
||||
|
||||
std::vector<const collection::Variable *> e;
|
||||
variable->evaluateInternal(trasn, this, &e);
|
||||
|
||||
for (auto &v : e) {
|
||||
bool ignoreVariable = false;
|
||||
for (const collection::Variable *v : e) {
|
||||
if (std::find(exclusions.begin(), exclusions.end(),
|
||||
v->m_key) != exclusions.end()) {
|
||||
#ifndef NO_LOGS
|
||||
@ -371,6 +429,7 @@ bool Rule::evaluate(Transaction *trasn) {
|
||||
if (ignoreVariable) {
|
||||
continue;
|
||||
}
|
||||
|
||||
for (auto &i : trasn->m_ruleRemoveTargetById) {
|
||||
int id = i.first;
|
||||
std::string args = i.second;
|
||||
@ -388,253 +447,208 @@ bool Rule::evaluate(Transaction *trasn) {
|
||||
continue;
|
||||
}
|
||||
|
||||
std::string value = v->m_value;
|
||||
int none = 0;
|
||||
for (Action *a : this->actions_runtime_pre) {
|
||||
if (a->m_isNone) {
|
||||
none++;
|
||||
}
|
||||
}
|
||||
finalVars.push_back(v);
|
||||
}
|
||||
}
|
||||
return finalVars;
|
||||
}
|
||||
|
||||
// Check for transformations on the SecDefaultAction
|
||||
// Notice that first we make sure that won't be a t:none
|
||||
// on the target rule.
|
||||
if (none == 0) {
|
||||
for (Action *a :
|
||||
trasn->m_rules->defaultActions[this->phase]) {
|
||||
if (a->action_kind ==
|
||||
actions::Action::RunTimeBeforeMatchAttemptKind) {
|
||||
value = a->evaluate(value, trasn);
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(9, "(SecDefaultAction) T (" + \
|
||||
std::to_string(transformations) + ") " + \
|
||||
a->m_name + ": \"" + \
|
||||
utils::string::limitTo(80, value) +"\"");
|
||||
#endif
|
||||
transformations++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (Action *a : this->actions_runtime_pre) {
|
||||
if (none == 0) {
|
||||
value = a->evaluate(value, trasn);
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(9, " T (" + \
|
||||
std::to_string(transformations) + ") " + \
|
||||
a->m_name + ": \"" + \
|
||||
utils::string::limitTo(80, value) + "\"");
|
||||
#endif
|
||||
transformations++;
|
||||
}
|
||||
if (a->m_isNone) {
|
||||
none--;
|
||||
}
|
||||
}
|
||||
void Rule::executeActionsAfterFullMatch(Transaction *trasn,
|
||||
bool containsDisruptive, RuleMessage *ruleMessage) {
|
||||
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(9, "Target value: \"" + utils::string::limitTo(80,
|
||||
utils::string::toHexIfNeeded(value)) \
|
||||
+ "\" (Variable: " + v->m_key + ")");
|
||||
#endif
|
||||
|
||||
ret = this->op->evaluateInternal(trasn, this, value);
|
||||
|
||||
#ifndef NO_LOGS
|
||||
clock_t end = clock();
|
||||
double elapsed_secs = static_cast<double>(end - begin) \
|
||||
/ CLOCKS_PER_SEC;
|
||||
|
||||
trasn->debug(4, "Operator completed in " + \
|
||||
std::to_string(elapsed_secs) + " seconds");
|
||||
#endif
|
||||
|
||||
if (ret) {
|
||||
bool containsDisruptive = false;
|
||||
bool chainResult = false;
|
||||
bool containsPassAction = false;
|
||||
globalRet = true;
|
||||
|
||||
if (this->op->m_match_message.empty() == true) {
|
||||
ruleMessage->m_match = "Matched \"Operator `" +
|
||||
this->op->m_op + "' with parameter `" +
|
||||
utils::string::limitTo(200, this->op->m_param) +
|
||||
"' against variable `" + v->m_key + "' (Value: `" +
|
||||
utils::string::limitTo(100,
|
||||
utils::string::toHexIfNeeded(value)) +
|
||||
"' ) \" at " + v->m_key;
|
||||
} else {
|
||||
ruleMessage->m_match = this->op->m_match_message;
|
||||
}
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "Rule returned 1.");
|
||||
trasn->m_collections.storeOrUpdateFirst("MATCHED_VAR",
|
||||
value);
|
||||
trasn->m_collections.storeOrUpdateFirst("MATCHED_VAR_NAME",
|
||||
v->m_key);
|
||||
trasn->m_collections.store("MATCHED_VARS:"
|
||||
+ v->m_key, value);
|
||||
trasn->m_collections.store("MATCHED_VARS_NAMES:"
|
||||
+ v->m_key, v->m_key);
|
||||
#endif
|
||||
|
||||
for (Action *a :
|
||||
this->actions_runtime_pos) {
|
||||
if (a->isDisruptive() == true) {
|
||||
if (a->m_name == "pass") {
|
||||
containsPassAction = true;
|
||||
trasn->debug(4, "Rule contains a `pass' action");
|
||||
} else {
|
||||
containsDisruptive = true;
|
||||
}
|
||||
} else {
|
||||
if (a->m_name == "setvar") {
|
||||
trasn->debug(4, "Running [I] (_non_ disruptive) " \
|
||||
"action: " + a->m_name);
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (this->chained && this->chainedRule == NULL) {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "Rule is marked as chained but there " \
|
||||
"isn't a subsequent rule.");
|
||||
#endif
|
||||
}
|
||||
if (this->chained && this->chainedRule != NULL) {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "Executing chained rule.");
|
||||
#endif
|
||||
chainResult = this->chainedRule->evaluate(trasn);
|
||||
}
|
||||
if ((this->chained && chainResult == true) || !this->chained) {
|
||||
for (Action *a :
|
||||
trasn->m_rules->defaultActions[this->phase]) {
|
||||
if (a->action_kind
|
||||
== actions::Action::RunTimeOnlyIfMatchKind) {
|
||||
if (a->isDisruptive()) {
|
||||
if (containsDisruptive) {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4,
|
||||
"(SecDefaultAction) _ignoring_ " \
|
||||
"action: " + a->m_name + \
|
||||
" (rule contains a disruptive action)");
|
||||
#endif
|
||||
} else {
|
||||
if (trasn->m_rules->m_secRuleEngine
|
||||
== Rules::EnabledRuleEngine) {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "(SecDefaultAction) " \
|
||||
"Running action: " + a->m_name + \
|
||||
" (rule _does not_ contains a " \
|
||||
"disruptive action)");
|
||||
#endif
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
} else {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "(SecDefaultAction) " \
|
||||
"_Not_ running action: " \
|
||||
+ a->m_name + ". Rule _does not_" \
|
||||
+ " contains a disruptive action,"\
|
||||
+ " but SecRuleEngine is not On.");
|
||||
#endif
|
||||
}
|
||||
}
|
||||
} else {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "(SecDefaultAction) Running " \
|
||||
"action: " + a->m_name + "!!" \
|
||||
+ std::to_string(a->isDisruptive()));
|
||||
#endif
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
}
|
||||
}
|
||||
}
|
||||
for (Action *a :
|
||||
this->actions_runtime_pos) {
|
||||
if (a->isDisruptive()
|
||||
&& trasn->m_rules->m_secRuleEngine
|
||||
== Rules::EnabledRuleEngine
|
||||
&& containsPassAction == false) {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "Running (disruptive) " \
|
||||
"action: " + a->m_name);
|
||||
#endif
|
||||
a->evaluate(this, trasn);
|
||||
} else if (a->isDisruptive()
|
||||
&& containsPassAction == false) {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4,
|
||||
"Not running disruptive action: " + \
|
||||
a->m_name + ". SecRuleEngine " + \
|
||||
"is not On");
|
||||
#endif
|
||||
} else if (a->isDisruptive() &&
|
||||
containsPassAction == true) {
|
||||
if (a->m_name != "pass") {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "Not running disruptive " \
|
||||
"action: " + a->m_name + ". It was " \
|
||||
"silenced by an `pass' action.");
|
||||
#endif
|
||||
}
|
||||
} else if (!a->isDisruptive()) {
|
||||
if (a->m_name != "capture" \
|
||||
&& a->m_name != "setvar") {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "Running [II] " \
|
||||
"(_non_ disruptive) " \
|
||||
"action: " + a->m_name);
|
||||
#endif
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
} else if (globalRet != true) {
|
||||
#ifndef NO_LOGS
|
||||
trasn->debug(4, "Rule returned 0.");
|
||||
trasn->m_collections.storeOrUpdateFirst("MATCHED_VAR", "");
|
||||
trasn->m_collections.del("MATCHED_VARS:" + v->m_key);
|
||||
trasn->m_collections.del("MATCHED_VARS_NAMES:" + v->m_key);
|
||||
trasn->m_collections.del("MATCHED_VARS_NAME");
|
||||
#endif
|
||||
}
|
||||
for (Action *a : trasn->m_rules->defaultActions[this->phase]) {
|
||||
if (a->action_kind != actions::Action::RunTimeOnlyIfMatchKind) {
|
||||
continue;
|
||||
}
|
||||
|
||||
while (e.empty() == false) {
|
||||
delete e.back();
|
||||
e.pop_back();
|
||||
if (a->isDisruptive() == false) {
|
||||
trasn->debug(4, "(SecDefaultAction) Running " \
|
||||
"action: " + a->m_name);
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (containsDisruptive) {
|
||||
trasn->debug(4, "(SecDefaultAction) _ignoring_ " \
|
||||
"action: " + a->m_name + \
|
||||
" (rule contains a disruptive action)");
|
||||
continue;
|
||||
}
|
||||
|
||||
if (trasn->m_rules->m_secRuleEngine == Rules::EnabledRuleEngine) {
|
||||
trasn->debug(4, "(SecDefaultAction) " \
|
||||
"Running action: " + a->m_name + \
|
||||
" (rule _does not_ contains a " \
|
||||
"disruptive action)");
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
continue;
|
||||
}
|
||||
|
||||
trasn->debug(4, "(SecDefaultAction) _Not_ running action: " \
|
||||
+ a->m_name + ". Rule _does not_contains a disruptive action,"\
|
||||
+ " but SecRuleEngine is not On.");
|
||||
}
|
||||
|
||||
for (Action *a : this->m_actionsRuntimePos) {
|
||||
if (a->isDisruptive() == false) {
|
||||
if (a->m_name != "setvar" && a->m_name != "log"
|
||||
&& a->m_name != "msg") {
|
||||
trasn->debug(4, "Running [I] (_non_ disruptive) " \
|
||||
"action: " + a->m_name);
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
if (trasn->m_rules->m_secRuleEngine == Rules::EnabledRuleEngine) {
|
||||
trasn->debug(4, "Running (disruptive) action: " + a->m_name);
|
||||
a->evaluate(this, trasn, ruleMessage);
|
||||
continue;
|
||||
} else {
|
||||
continue;
|
||||
}
|
||||
|
||||
trasn->debug(4, "Not running disruptive action: " + \
|
||||
a->m_name + ". SecRuleEngine is not On");
|
||||
}
|
||||
|
||||
for (auto &z : ruleMessage->m_tmp_actions) {
|
||||
trasn->m_actions.push_back(z);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
bool Rule::evaluate(Transaction *trasn) {
|
||||
bool isThisAChainedRule = rule_id == 0;
|
||||
bool globalRet = false;
|
||||
std::vector<Variable *> *variables = this->variables;
|
||||
bool recursiveGlobalRet;
|
||||
bool containsDisruptive = false;
|
||||
RuleMessage ruleMessage(this);
|
||||
|
||||
trasn->m_matched.clear();
|
||||
|
||||
if (m_secmarker == true) {
|
||||
return true;
|
||||
}
|
||||
if (m_unconditional == true) {
|
||||
trasn->debug(4, "(Rule: " + std::to_string(rule_id) \
|
||||
+ ") Executing unconditional rule...");
|
||||
executeActionsIndependentOfChainedRuleResult(trasn,
|
||||
&containsDisruptive, &ruleMessage);
|
||||
executeActionsAfterFullMatch(trasn, false, &ruleMessage);
|
||||
return true;
|
||||
}
|
||||
|
||||
for (auto &i : trasn->m_ruleRemoveById) {
|
||||
if (rule_id != i) {
|
||||
continue;
|
||||
}
|
||||
trasn->debug(9, "Rule id: " + std::to_string(rule_id) +
|
||||
" was skipped due to an ruleRemoveById action...");
|
||||
return true;
|
||||
}
|
||||
|
||||
std::string eparam = MacroExpansion::expand(this->op->m_param, trasn);
|
||||
|
||||
if (this->op->m_param != eparam) {
|
||||
eparam = "\"" + eparam + "\" Was: \"" + this->op->m_param + "\"";
|
||||
} else {
|
||||
eparam = "\"" + eparam + "\"";
|
||||
}
|
||||
|
||||
trasn->debug(4, "(Rule: " + std::to_string(rule_id) \
|
||||
+ ") Executing operator \"" + this->op->m_op \
|
||||
+ "\" with param " \
|
||||
+ eparam \
|
||||
+ " against " \
|
||||
+ Variable::to_s(variables) + ".");
|
||||
|
||||
updateRulesVariable(trasn);
|
||||
|
||||
std::vector<const collection::Variable *> finalVars = getFinalVars(trasn);
|
||||
|
||||
for (const collection::Variable *v : finalVars) {
|
||||
std::string value = v->m_value;
|
||||
std::vector<std::string> values;
|
||||
bool ret;
|
||||
bool multiMatch = getActionsByName("multimatch").size() > 0;
|
||||
|
||||
values = executeSecDefaultActionTransofrmations(trasn, value,
|
||||
multiMatch);
|
||||
|
||||
for (const std::string &valueTemp : values) {
|
||||
ret = executeOperatorAt(trasn, v->m_key, valueTemp);
|
||||
if (ret == true) {
|
||||
ruleMessage.m_match = resolveMatchMessage(v->m_key, value);
|
||||
updateMatchedVars(trasn, v->m_key, value);
|
||||
executeActionsIndependentOfChainedRuleResult(trasn,
|
||||
&containsDisruptive, &ruleMessage);
|
||||
std::string msg2save = ruleMessage.errorLog(trasn);
|
||||
if (ruleMessage.m_message.empty() == false) {
|
||||
trasn->debug(4, "Scheduled to be saved on the server " +
|
||||
"log: " + msg2save + "");
|
||||
ruleMessage.m_server_logs.push_back(msg2save);
|
||||
}
|
||||
globalRet = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (globalRet == true && rule_id != 0
|
||||
&& ruleMessage->m_saveMessage == true) {
|
||||
ruleMessage->m_message = m_log_message;
|
||||
trasn->debug(4, "Saving on the server log: "
|
||||
+ ruleMessage->errorLog(trasn));
|
||||
trasn->serverLog(ruleMessage->errorLog(trasn));
|
||||
if (globalRet == false) {
|
||||
trasn->debug(4, "Rule returned 0.");
|
||||
cleanMatchedVars(trasn);
|
||||
return false;
|
||||
}
|
||||
delete ruleMessage;
|
||||
|
||||
return globalRet;
|
||||
trasn->debug(4, "Rule returned 1.");
|
||||
|
||||
if (this->chained == false) {
|
||||
executeActionsAfterFullMatch(trasn, containsDisruptive, &ruleMessage);
|
||||
trasn->debug(4, "Merging temporary actions to the main transaction.");
|
||||
|
||||
for (const auto &u : ruleMessage.m_server_logs) {
|
||||
trasn->debug(8, "To save: " + u);
|
||||
trasn->serverLog(u);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
if (this->chainedRule == NULL) {
|
||||
trasn->debug(4, "Rule is marked as chained but there " \
|
||||
"isn't a subsequent rule.");
|
||||
return false;
|
||||
}
|
||||
|
||||
trasn->debug(4, "Executing chained rule.");
|
||||
recursiveGlobalRet = this->chainedRule->evaluate(trasn);
|
||||
|
||||
if (recursiveGlobalRet == true) {
|
||||
executeActionsAfterFullMatch(trasn, containsDisruptive, &ruleMessage);
|
||||
trasn->debug(4, "Merging temporary actions to the main transaction.");
|
||||
for (const auto &u : ruleMessage.m_server_logs) {
|
||||
trasn->serverLog(u);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
std::vector<actions::Action *> Rule::getActionsByName(const std::string& name) {
|
||||
std::vector<actions::Action *> ret;
|
||||
for (auto &z : this->actions_runtime_pos) {
|
||||
for (auto &z : m_actionsRuntimePos) {
|
||||
if (z->m_name == name) {
|
||||
ret.push_back(z);
|
||||
}
|
||||
}
|
||||
for (auto &z : this->actions_runtime_pre) {
|
||||
for (auto &z : m_actionsRuntimePre) {
|
||||
if (z->m_name == name) {
|
||||
ret.push_back(z);
|
||||
}
|
||||
}
|
||||
for (auto &z : this->actions_conf) {
|
||||
for (auto &z : m_actionsConf) {
|
||||
if (z->m_name == name) {
|
||||
ret.push_back(z);
|
||||
}
|
||||
@ -645,7 +659,7 @@ std::vector<actions::Action *> Rule::getActionsByName(const std::string& name) {
|
||||
|
||||
bool Rule::containsTag(const std::string& name, Transaction *t) {
|
||||
std::vector<std::string *> ret;
|
||||
for (auto &z : this->actions_runtime_pos) {
|
||||
for (auto &z : this->m_actionsRuntimePos) {
|
||||
actions::Tag *tag = dynamic_cast<actions::Tag *> (z);
|
||||
if (tag != NULL && tag->getName(t) == name) {
|
||||
return true;
|
||||
@ -654,4 +668,5 @@ bool Rule::containsTag(const std::string& name, Transaction *t) {
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
} // namespace modsecurity
|
||||
|
@ -53,57 +53,7 @@ namespace Variables {
|
||||
void Rule::evaluateInternal(Transaction *t,
|
||||
modsecurity::Rule *rule,
|
||||
std::vector<const collection::Variable *> *l) {
|
||||
std::map<std::string, std::string> envs;
|
||||
std::string m_name_upper = utils::string::toupper(m_name);
|
||||
|
||||
// id
|
||||
envs.insert(std::pair<std::string, std::string>("RULE:id",
|
||||
std::to_string(rule->rule_id)));
|
||||
|
||||
// rev
|
||||
envs.insert(std::pair<std::string, std::string>("RULE:rev",
|
||||
rule->m_rev));
|
||||
|
||||
// severity
|
||||
std::vector<actions::Action *> acts = rule->getActionsByName("severity");
|
||||
for (actions::Action *i : acts) {
|
||||
actions::Severity *a = reinterpret_cast<actions::Severity *>(i);
|
||||
if (a) {
|
||||
envs.insert(std::pair<std::string, std::string>("RULE:severity",
|
||||
std::to_string(a->m_severity)));
|
||||
}
|
||||
}
|
||||
|
||||
// logdata
|
||||
acts = rule->getActionsByName("logdata");
|
||||
for (actions::Action *i : acts) {
|
||||
actions::LogData *a = reinterpret_cast<actions::LogData *>(i);
|
||||
if (a) {
|
||||
envs.insert(std::pair<std::string, std::string>("RULE:logdata",
|
||||
a->data(t)));
|
||||
}
|
||||
}
|
||||
|
||||
// msg
|
||||
acts = rule->getActionsByName("msg");
|
||||
for (actions::Action *i : acts) {
|
||||
actions::Msg *a = reinterpret_cast<actions::Msg *>(i);
|
||||
if (a) {
|
||||
std::string data = a->data(t);
|
||||
envs.insert(std::pair<std::string, std::string>("RULE:msg",
|
||||
data));
|
||||
}
|
||||
}
|
||||
|
||||
for (auto& x : envs) {
|
||||
std::string xup = utils::string::toupper(x.first);
|
||||
if ((xup.substr(0, m_name_upper.size() + 1)
|
||||
.compare(m_name_upper + ":") != 0)
|
||||
&& (xup != m_name_upper)) {
|
||||
continue;
|
||||
}
|
||||
l->push_back(new collection::Variable(x.first, x.second));
|
||||
}
|
||||
// Variable rule is now being saved as part of the transient collection.
|
||||
}
|
||||
|
||||
} // namespace Variables
|
||||
|
Loading…
x
Reference in New Issue
Block a user