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in-memory backend: Adds support to select variables using regex

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This commit is contained in:
Felipe Zimmerle
2016-07-08 15:36:34 -03:00
parent 4daf9d8ab0
commit de8245d8f9
2 changed files with 48 additions and 13 deletions
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33
src/collection/backend/in_memory-per_process.cc
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@@ -25,6 +25,7 @@
#include "modsecurity/collection/variable.h"
#include "src/utils.h"
#include "src/utils/regex.h"
namespace modsecurity {
namespace collection {
@@ -108,7 +109,37 @@ void InMemoryPerProcess::resolveMultiMatches(const std::string& var,
void InMemoryPerProcess::resolveRegularExpression(const std::string& var,
std::vector<const Variable *> *l) {
/* Not ready */
if (var.find(":") == std::string::npos) {
return;
}
if (var.size() < var.find(":") + 3) {
return;
}
std::string col = std::string(var, 0, var.find(":"));
std::string name = std::string(var, var.find(":") + 2, var.size() - var.find(":") - 3);
size_t keySize = col.size();
Utils::Regex r = Utils::Regex(name);
for (const auto& x : *this) {
if (x.first.size() <= keySize + 1) {
continue;
}
if (x.first.at(keySize) != ':') {
continue;
}
if (std::string(x.first, 0, keySize) != col) {
continue;
}
std::string content = std::string(x.first, keySize + 1,
x.first.size() - keySize - 1);
int ret = Utils::regex_search(content, r);
if (ret <= 0) {
continue;
}
l->insert(l->begin(), new Variable(x.first, x.second));
}
}