BlacklistIpExtractor.cpp File Reference

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Functions
static bool	is_valid_ipv4 (const std::string &s)
static bool	is_valid_ipv4_cidr (const std::string &s)
static bool	is_valid_ipv6 (const std::string &s)
static bool	extract_host_from_url (const std::string &line, std::string &host)

Function Documentation

extract_host_from_url()

bool extract_host_from_url ( const std::string & line, std::string & host )

static

Definition at line 71 of file BlacklistIpExtractor.cpp.

                                                                          {
    static const std::regex url_re(
        R"(^(?:https?|ftp)://([^/:?#]+))",
        std::regex::icase
    );
 
    std::smatch m;
    if (!std::regex_search(line, m, url_re))
        return false;
 
    host = m[1].str();
    return true;
}

References extract_host_from_url().

Referenced by action_check_url(), extract_host_from_url(), extract_host_from_url(), and BlacklistIpExtractor::extractAndWrite().

is_valid_ipv4()

bool is_valid_ipv4 ( const std::string & s )

static

Definition at line 31 of file BlacklistIpExtractor.cpp.

                                              {
    int parts = 0, acc = 0;
    bool has_digit = false;
 
    for (char c : s) {
        if (c >= '0' && c <= '9') {
            has_digit = true;
            acc = acc * 10 + (c - '0');
            if (acc > 255) return false;
        } else if (c == '.') {
            if (!has_digit) return false;
            parts++;
            acc = 0;
            has_digit = false;
        } else return false;
    }
 
    return has_digit && parts == 3;
}

References is_valid_ipv4().

Referenced by BlacklistIpExtractor::extractAndWrite(), is_valid_ipv4(), and is_valid_ipv4_cidr().

is_valid_ipv4_cidr()

bool is_valid_ipv4_cidr ( const std::string & s )

static

Definition at line 51 of file BlacklistIpExtractor.cpp.

                                                   {
    auto pos = s.find('/');
    if (pos == std::string::npos) return false;
    if (!is_valid_ipv4(s.substr(0, pos))) return false;
 
    try {
        int m = std::stoi(s.substr(pos + 1));
        return m >= 0 && m <= 32;
    } catch (...) {
        return false;
    }
}

References is_valid_ipv4(), and is_valid_ipv4_cidr().

Referenced by BlacklistIpExtractor::extractAndWrite(), and is_valid_ipv4_cidr().

is_valid_ipv6()

bool is_valid_ipv6 ( const std::string & s )

static

Definition at line 64 of file BlacklistIpExtractor.cpp.

                                              {
    static const std::regex ipv6(
        R"(^([0-9a-fA-F]{0,4}:){2,7}[0-9a-fA-F]{0,4}$)"
    );
    return std::regex_match(s, ipv6);
}

References is_valid_ipv6().

Referenced by BlacklistIpExtractor::extractAndWrite(), and is_valid_ipv6().