25358587425

Committed 05 May 2026 04:55AM UTC coverage: 59.127% (+5.6%) from 53.574%

Build # 25358587425

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github

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web-flow

Commit Message

Merge pull request #17267 from miodvallat/backport-17000-to-auth-4.9.x

auth 4.9: backport "correctly delete ENT records from the API"

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0.0

/modules/lua2backend/lua2api2.hh

/*
 * This file is part of PowerDNS or dnsdist.
 * Copyright -- PowerDNS.COM B.V. and its contributors
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * In addition, for the avoidance of any doubt, permission is granted to
 * link this program with OpenSSL and to (re)distribute the binaries
 * produced as the result of such linking.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTAPILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#pragma once
#include "boost/lexical_cast.hpp"
#include "boost/algorithm/string/join.hpp"
#include "pdns/arguments.hh"

class Lua2BackendAPIv2 : public DNSBackend, AuthLua4
{
private:
  typedef std::function<void()> init_call_t;
  typedef std::function<void()> deinit_call_t;

  typedef std::vector<std::pair<string, string>> lookup_context_t;

  typedef std::vector<std::pair<int, std::vector<std::pair<string, boost::variant<bool, int, DNSName, string, QType>>>>> lookup_result_t;
  typedef std::function<lookup_result_t(const QType& qtype, const DNSName& qname, int domain_id, const lookup_context_t& ctx)> lookup_call_t;

  typedef boost::variant<bool, lookup_result_t> list_result_t;
  typedef std::function<list_result_t(const DNSName& qname, int domain_id)> list_call_t;

  typedef vector<pair<string, boost::variant<bool, long, string, vector<string>>>> domaininfo_result_t;
  typedef boost::variant<bool, domaininfo_result_t> get_domaininfo_result_t;
  typedef vector<pair<DNSName, domaininfo_result_t>> get_all_domains_result_t;
  typedef std::function<get_domaininfo_result_t(const DNSName& domain)> get_domaininfo_call_t;
  typedef std::function<get_all_domains_result_t()> get_all_domains_call_t;

  typedef vector<pair<int, string>> domain_metadata_result_t;
  typedef boost::variant<bool, domain_metadata_result_t> get_domain_metadata_result_t;
  typedef boost::variant<bool, vector<pair<string, domain_metadata_result_t>>> get_all_domain_metadata_result_t;
  typedef std::function<get_domain_metadata_result_t(const DNSName& domain, const string& kind)> get_domain_metadata_call_t;
  typedef std::function<get_all_domain_metadata_result_t(const DNSName& domain)> get_all_domain_metadata_call_t;

  typedef vector<pair<string, boost::variant<bool, int, string>>> keydata_result_t;
  typedef boost::variant<bool, vector<pair<int, keydata_result_t>>> get_domain_keys_result_t;
  typedef std::function<get_domain_keys_result_t(const DNSName& domain)> get_domain_keys_call_t;

  typedef std::vector<std::pair<string, boost::variant<string, DNSName>>> before_and_after_names_result_t;
  typedef boost::variant<bool, before_and_after_names_result_t> get_before_and_after_names_absolute_result_t;
  typedef std::function<get_before_and_after_names_absolute_result_t(int id, const DNSName& qname)> get_before_and_after_names_absolute_call_t;

  typedef std::function<void(int, long)> set_notified_call_t;

  typedef std::function<string(const string& cmd)> direct_backend_cmd_call_t;

public:
  Lua2BackendAPIv2(const string& suffix)
  {
    setArgPrefix("lua2" + suffix);
    d_debug_log = mustDo("query-logging");
    prepareContext();
    loadFile(getArg("filename"));
  }

  ~Lua2BackendAPIv2() override;

#define logCall(func, var)                                                                               \
  {                                                                                                      \
    if (d_debug_log) {                                                                                   \
      g_log << Logger::Debug << "[" << getPrefix() << "] Calling " << func << "(" << var << ")" << endl; \
    }                                                                                                    \
  }
#define logResult(var)                                                \
  {                                                                   \
    if (d_debug_log) {                                                \
      g_log << Logger::Debug << "[" << getPrefix() << "] Got result " \
            << "'" << var << "'" << endl;                             \
    }                                                                 \
  }

  void postPrepareContext() override
  {
    AuthLua4::postPrepareContext();
  }

  void postLoad() override
  {
    f_lookup = d_lw->readVariable<boost::optional<lookup_call_t>>("dns_lookup").get_value_or(0);
    f_list = d_lw->readVariable<boost::optional<list_call_t>>("dns_list").get_value_or(0);
    f_get_all_domains = d_lw->readVariable<boost::optional<get_all_domains_call_t>>("dns_get_all_domains").get_value_or(0);
    f_get_domaininfo = d_lw->readVariable<boost::optional<get_domaininfo_call_t>>("dns_get_domaininfo").get_value_or(0);
    f_get_domain_metadata = d_lw->readVariable<boost::optional<get_domain_metadata_call_t>>("dns_get_domain_metadata").get_value_or(0);
    f_get_all_domain_metadata = d_lw->readVariable<boost::optional<get_all_domain_metadata_call_t>>("dns_get_all_domain_metadata").get_value_or(0);
    f_get_domain_keys = d_lw->readVariable<boost::optional<get_domain_keys_call_t>>("dns_get_domain_keys").get_value_or(0);
    f_get_before_and_after_names_absolute = d_lw->readVariable<boost::optional<get_before_and_after_names_absolute_call_t>>("dns_get_before_and_after_names_absolute").get_value_or(0);
    f_set_notified = d_lw->readVariable<boost::optional<set_notified_call_t>>("dns_set_notified").get_value_or(0);

    auto init = d_lw->readVariable<boost::optional<init_call_t>>("dns_init").get_value_or(0);
    if (init)
      init();

    f_deinit = d_lw->readVariable<boost::optional<deinit_call_t>>("dns_deinit").get_value_or(0);

    if (f_lookup == nullptr)
      throw PDNSException("dns_lookup missing");

    /* see if dnssec support is wanted */
    d_dnssec = d_lw->readVariable<boost::optional<bool>>("dns_dnssec").get_value_or(false);
    if (d_dnssec) {
      if (f_get_domain_metadata == nullptr)
        throw PDNSException("dns_dnssec is true but dns_get_domain_metadata is missing");
      if (f_get_before_and_after_names_absolute == nullptr)
        throw PDNSException("dns_dnssec is true but dns_get_before_and_after_names_absolute is missing");
      /* domain keys is not strictly speaking necessary for dnssec backend */
      if (f_get_domain_keys == nullptr)
        g_log << Logger::Warning << "dns_get_domain_keys missing - cannot do live signing" << endl;
    }
  }

  bool doesDNSSEC() override
  {
    return d_dnssec;
  }

  void parseLookup(const lookup_result_t& result)
  {
    for (const auto& row : result) {
      DNSResourceRecord rec;
      for (const auto& item : row.second) {
        if (item.first == "type") {
          if (item.second.which() == 1)
            rec.qtype = QType(boost::get<int>(item.second));
          else if (item.second.which() == 3)
            rec.qtype = boost::get<string>(item.second);
          else if (item.second.which() == 4)
            rec.qtype = boost::get<QType>(item.second);
          else
            throw PDNSException("Unsupported value for type");
        }
        else if (item.first == "name") {
          if (item.second.which() == 3)
            rec.qname = DNSName(boost::get<string>(item.second));
          else if (item.second.which() == 2)
            rec.qname = boost::get<DNSName>(item.second);
          else
            throw PDNSException("Unsupported value for name");
        }
        else if (item.first == "domain_id")
          rec.domain_id = boost::get<int>(item.second);
        else if (item.first == "auth")
          rec.auth = boost::get<bool>(item.second);
        else if (item.first == "last_modified")
          rec.last_modified = static_cast<time_t>(boost::get<int>(item.second));
        else if (item.first == "ttl")
          rec.ttl = boost::get<int>(item.second);
        else if (item.first == "content")
          rec.setContent(boost::get<string>(item.second));
        else if (item.first == "scopeMask")
          rec.scopeMask = boost::get<int>(item.second);
        else
          g_log << Logger::Warning << "Unsupported key '" << item.first << "' in lookup or list result" << endl;
      }
      logResult(rec.qname << " IN " << rec.qtype.toString() << " " << rec.ttl << " " << rec.getZoneRepresentation());
      d_result.push_back(rec);
    }
    if (d_result.empty() && d_debug_log)
      g_log << Logger::Debug << "[" << getPrefix() << "] Got empty result" << endl;
  }

  bool list(const DNSName& target, int domain_id, bool /* include_disabled */ = false) override
  {
    if (f_list == nullptr) {
      g_log << Logger::Error << "[" << getPrefix() << "] dns_list missing - cannot do AXFR" << endl;
      return false;
    }

    if (d_result.size() != 0)
      throw PDNSException("list attempted while another was running");

    logCall("list", "target=" << target << ",domain_id=" << domain_id);
    list_result_t result = f_list(target, domain_id);

    if (result.which() == 0)
      return false;

    parseLookup(boost::get<lookup_result_t>(result));

    return true;
  }

  void lookup(const QType& qtype, const DNSName& qname, int domain_id, DNSPacket* p = nullptr) override
  {
    if (d_result.size() != 0)
      throw PDNSException("lookup attempted while another was running");

    lookup_context_t ctx;
    if (p != NULL) {
      ctx.emplace_back(lookup_context_t::value_type{"source_address", p->getInnerRemote().toString()});
      ctx.emplace_back(lookup_context_t::value_type{"real_source_address", p->getRealRemote().toString()});
    }

    logCall("lookup", "qtype=" << qtype.toString() << ",qname=" << qname << ",domain_id=" << domain_id);
    lookup_result_t result = f_lookup(qtype, qname, domain_id, ctx);
    parseLookup(result);
  }

  bool get(DNSResourceRecord& rr) override
  {
    if (d_result.size() == 0)
      return false;
    rr = std::move(d_result.front());
    d_result.pop_front();
    return true;
  }

  string directBackendCmd(const string& querystr) override
  {
    string::size_type pos = querystr.find_first_of(" \t");
    string cmd = querystr;
    string par = "";
    if (pos != string::npos) {
      cmd = querystr.substr(0, pos);
      par = querystr.substr(pos + 1);
    }
    direct_backend_cmd_call_t f = d_lw->readVariable<boost::optional<direct_backend_cmd_call_t>>(cmd).get_value_or(0);
    if (f == nullptr) {
      return cmd + "not found";
    }
    logCall(cmd, "parameter=" << par);
    return f(par);
  }

  void setNotified(uint32_t id, uint32_t serial) override
  {
    if (f_set_notified == NULL)
      return;
    logCall("dns_set_notified", "id=" << static_cast<int>(id) << ",serial=" << serial);
    f_set_notified(static_cast<int>(id), serial);
  }

  void parseDomainInfo(const domaininfo_result_t& row, DomainInfo& di)
  {
    for (const auto& item : row) {
      if (item.first == "account")
        di.account = boost::get<string>(item.second);
      else if (item.first == "last_check")
        di.last_check = static_cast<time_t>(boost::get<long>(item.second));
      else if (item.first == "masters")
        for (const auto& primary : boost::get<vector<string>>(item.second))
          di.primaries.push_back(ComboAddress(primary, 53));
      else if (item.first == "id")
        di.id = static_cast<int>(boost::get<long>(item.second));
      else if (item.first == "notified_serial")
        di.notified_serial = static_cast<unsigned int>(boost::get<long>(item.second));
      else if (item.first == "serial")
        di.serial = static_cast<unsigned int>(boost::get<long>(item.second));
      else if (item.first == "kind")
        di.kind = DomainInfo::stringToKind(boost::get<string>(item.second));
      else
        g_log << Logger::Warning << "Unsupported key '" << item.first << "' in domaininfo result" << endl;
    }
    di.backend = this;
    logResult("zone=" << di.zone << ",serial=" << di.serial << ",kind=" << di.getKindString());
  }

  bool getDomainInfo(const DNSName& domain, DomainInfo& di, bool /* getSerial */ = true) override
  {
    if (f_get_domaininfo == nullptr) {
      // use getAuth instead
      SOAData sd;
      if (!getAuth(domain, &sd))
        return false;

      di.zone = domain;
      di.backend = this;
      di.serial = sd.serial;
      return true;
    }

    logCall("get_domaininfo", "domain=" << domain);
    get_domaininfo_result_t result = f_get_domaininfo(domain);

    if (result.which() == 0)
      return false;

    di.zone = domain;
    parseDomainInfo(boost::get<domaininfo_result_t>(result), di);

    return true;
  }

  void getAllDomains(vector<DomainInfo>* domains, bool /* getSerial */, bool /* include_disabled */) override
  {
    if (f_get_all_domains == nullptr)
      return;

    logCall("get_all_domains", "");
    for (const auto& row : f_get_all_domains()) {
      DomainInfo di;
      di.zone = row.first;
      logResult(di.zone);
      parseDomainInfo(row.second, di);
      domains->push_back(di);
    }
  }

  bool getAllDomainMetadata(const DNSName& name, std::map<std::string, std::vector<std::string>>& meta) override
  {
    if (f_get_all_domain_metadata == nullptr)
      return false;

    logCall("get_all_domain_metadata", "name=" << name);
    get_all_domain_metadata_result_t result = f_get_all_domain_metadata(name);
    if (result.which() == 0)
      return false;

    for (const auto& row : boost::get<vector<pair<string, domain_metadata_result_t>>>(result)) {
      meta[row.first].clear();
      for (const auto& item : row.second)
        meta[row.first].push_back(item.second);
      logResult("kind=" << row.first << ",value=" << boost::algorithm::join(meta[row.first], ", "));
    }

    return true;
  }

  bool getDomainMetadata(const DNSName& name, const std::string& kind, std::vector<std::string>& meta) override
  {
    if (f_get_domain_metadata == nullptr)
      return false;

    logCall("get_domain_metadata", "name=" << name << ",kind=" << kind);
    get_domain_metadata_result_t result = f_get_domain_metadata(name, kind);
    if (result.which() == 0)
      return false;

    meta.clear();
    for (const auto& item : boost::get<domain_metadata_result_t>(result))
      meta.push_back(item.second);

    logResult("value=" << boost::algorithm::join(meta, ", "));
    return true;
  }

  bool getDomainKeys(const DNSName& name, std::vector<DNSBackend::KeyData>& keys) override
  {
    if (f_get_domain_keys == nullptr)
      return false;

    logCall("get_domain_keys", "name=" << name);
    get_domain_keys_result_t result = f_get_domain_keys(name);

    if (result.which() == 0)
      return false;

    for (const auto& row : boost::get<vector<pair<int, keydata_result_t>>>(result)) {
      DNSBackend::KeyData key;
      key.published = true;
      for (const auto& item : row.second) {
        if (item.first == "content")
          key.content = boost::get<string>(item.second);
        else if (item.first == "id")
          key.id = static_cast<unsigned int>(boost::get<int>(item.second));
        else if (item.first == "flags")
          key.flags = static_cast<unsigned int>(boost::get<int>(item.second));
        else if (item.first == "active")
          key.active = boost::get<bool>(item.second);
        else if (item.first == "published")
          key.published = boost::get<bool>(item.second);
        else
          g_log << Logger::Warning << "[" << getPrefix() << "] Unsupported key '" << item.first << "' in keydata result" << endl;
      }
      logResult("id=" << key.id << ",flags=" << key.flags << ",active=" << (key.active ? "true" : "false") << ",published=" << (key.published ? "true" : "false"));
      keys.push_back(key);
    }

    return true;
  }

  bool getBeforeAndAfterNamesAbsolute(uint32_t id, const DNSName& qname, DNSName& unhashed, DNSName& before, DNSName& after) override
  {
    if (f_get_before_and_after_names_absolute == nullptr)
      return false;

    logCall("get_before_and_after_names_absolute", "id=<<" << id << ",qname=" << qname);
    get_before_and_after_names_absolute_result_t result = f_get_before_and_after_names_absolute(id, qname);

    if (result.which() == 0)
      return false;

    before_and_after_names_result_t row = boost::get<before_and_after_names_result_t>(result);
    if (row.size() != 3) {
      g_log << Logger::Error << "Invalid result from dns_get_before_and_after_names_absolute, expected array with 3 items, got " << row.size() << "item(s)" << endl;
      return false;
    }
    for (const auto& item : row) {
      DNSName value;
      if (item.second.which() == 0)
        value = DNSName(boost::get<string>(item.second));
      else
        value = DNSName(boost::get<DNSName>(item.second));
      if (item.first == "unhashed")
        unhashed = value;
      else if (item.first == "before")
        before = value;
      else if (item.first == "after")
        after = value;
      else {
        g_log << Logger::Error << "Invalid result from dns_get_before_and_after_names_absolute, unexpected key " << item.first << endl;
        return false;
      }
    }

    logResult("unhashed=" << unhashed << ",before=" << before << ",after=" << after);
    return true;
  }

private:
  std::list<DNSResourceRecord> d_result;
  bool d_debug_log{false};
  bool d_dnssec{false};

  lookup_call_t f_lookup;
  list_call_t f_list;

  get_domaininfo_call_t f_get_domaininfo;
  get_all_domains_call_t f_get_all_domains;

  get_domain_metadata_call_t f_get_domain_metadata;
  get_all_domain_metadata_call_t f_get_all_domain_metadata;

  get_domain_keys_call_t f_get_domain_keys;

  get_before_and_after_names_absolute_call_t f_get_before_and_after_names_absolute;

  set_notified_call_t f_set_notified;

  deinit_call_t f_deinit;
};

1	/*
2	* This file is part of PowerDNS or dnsdist.
3	* Copyright -- PowerDNS.COM B.V. and its contributors
4	*
5	* This program is free software; you can redistribute it and/or modify
6	* it under the terms of version 2 of the GNU General Public License as
7	* published by the Free Software Foundation.
8	*
9	* In addition, for the avoidance of any doubt, permission is granted to
10	* link this program with OpenSSL and to (re)distribute the binaries
11	* produced as the result of such linking.
12	*
13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTAPILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.
17	*
18	* You should have received a copy of the GNU General Public License
19	* along with this program; if not, write to the Free Software
20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21	*/
22	#pragma once
23	#include "boost/lexical_cast.hpp"
24	#include "boost/algorithm/string/join.hpp"
25	#include "pdns/arguments.hh"
26
27	class Lua2BackendAPIv2 : public DNSBackend, AuthLua4
28	{
29	private:
30	typedef std::function<void()> init_call_t;
31	typedef std::function<void()> deinit_call_t;
32
33	typedef std::vector<std::pair<string, string>> lookup_context_t;
34
35	typedef std::vector<std::pair<int, std::vector<std::pair<string, boost::variant<bool, int, DNSName, string, QType>>>>> lookup_result_t;
36	typedef std::function<lookup_result_t(const QType& qtype, const DNSName& qname, int domain_id, const lookup_context_t& ctx)> lookup_call_t;
37
38	typedef boost::variant<bool, lookup_result_t> list_result_t;
39	typedef std::function<list_result_t(const DNSName& qname, int domain_id)> list_call_t;
40
41	typedef vector<pair<string, boost::variant<bool, long, string, vector<string>>>> domaininfo_result_t;
42	typedef boost::variant<bool, domaininfo_result_t> get_domaininfo_result_t;
43	typedef vector<pair<DNSName, domaininfo_result_t>> get_all_domains_result_t;
44	typedef std::function<get_domaininfo_result_t(const DNSName& domain)> get_domaininfo_call_t;
45	typedef std::function<get_all_domains_result_t()> get_all_domains_call_t;
46
47	typedef vector<pair<int, string>> domain_metadata_result_t;
48	typedef boost::variant<bool, domain_metadata_result_t> get_domain_metadata_result_t;
49	typedef boost::variant<bool, vector<pair<string, domain_metadata_result_t>>> get_all_domain_metadata_result_t;
50	typedef std::function<get_domain_metadata_result_t(const DNSName& domain, const string& kind)> get_domain_metadata_call_t;
51	typedef std::function<get_all_domain_metadata_result_t(const DNSName& domain)> get_all_domain_metadata_call_t;
52
53	typedef vector<pair<string, boost::variant<bool, int, string>>> keydata_result_t;
54	typedef boost::variant<bool, vector<pair<int, keydata_result_t>>> get_domain_keys_result_t;
55	typedef std::function<get_domain_keys_result_t(const DNSName& domain)> get_domain_keys_call_t;
56
57	typedef std::vector<std::pair<string, boost::variant<string, DNSName>>> before_and_after_names_result_t;
58	typedef boost::variant<bool, before_and_after_names_result_t> get_before_and_after_names_absolute_result_t;
59	typedef std::function<get_before_and_after_names_absolute_result_t(int id, const DNSName& qname)> get_before_and_after_names_absolute_call_t;
60
61	typedef std::function<void(int, long)> set_notified_call_t;
62
63	typedef std::function<string(const string& cmd)> direct_backend_cmd_call_t;
64
65	public:
66	Lua2BackendAPIv2(const string& suffix)
UNCOV 67	{	×
UNCOV 68	setArgPrefix("lua2" + suffix);	×
UNCOV 69	d_debug_log = mustDo("query-logging");	×
UNCOV 70	prepareContext();	×
UNCOV 71	loadFile(getArg("filename"));	×
UNCOV 72	}	×
73
74	~Lua2BackendAPIv2() override;
75
76	#define logCall(func, var) \
UNCOV 77	{ \	×
UNCOV 78	if (d_debug_log) { \	×
79	g_log << Logger::Debug << "[" << getPrefix() << "] Calling " << func << "(" << var << ")" << endl; \	×
80	} \	×
UNCOV 81	}	×
82	#define logResult(var) \
UNCOV 83	{ \	×
UNCOV 84	if (d_debug_log) { \	×
85	g_log << Logger::Debug << "[" << getPrefix() << "] Got result " \	×
86	<< "'" << var << "'" << endl; \	×
87	} \	×
UNCOV 88	}	×
89
90	void postPrepareContext() override
UNCOV 91	{	×
UNCOV 92	AuthLua4::postPrepareContext();	×
UNCOV 93	}	×
94
95	void postLoad() override
UNCOV 96	{	×
UNCOV 97	f_lookup = d_lw->readVariable<boost::optional<lookup_call_t>>("dns_lookup").get_value_or(0);	×
UNCOV 98	f_list = d_lw->readVariable<boost::optional<list_call_t>>("dns_list").get_value_or(0);	×
UNCOV 99	f_get_all_domains = d_lw->readVariable<boost::optional<get_all_domains_call_t>>("dns_get_all_domains").get_value_or(0);	×
UNCOV 100	f_get_domaininfo = d_lw->readVariable<boost::optional<get_domaininfo_call_t>>("dns_get_domaininfo").get_value_or(0);	×
UNCOV 101	f_get_domain_metadata = d_lw->readVariable<boost::optional<get_domain_metadata_call_t>>("dns_get_domain_metadata").get_value_or(0);	×
UNCOV 102	f_get_all_domain_metadata = d_lw->readVariable<boost::optional<get_all_domain_metadata_call_t>>("dns_get_all_domain_metadata").get_value_or(0);	×
UNCOV 103	f_get_domain_keys = d_lw->readVariable<boost::optional<get_domain_keys_call_t>>("dns_get_domain_keys").get_value_or(0);	×
UNCOV 104	f_get_before_and_after_names_absolute = d_lw->readVariable<boost::optional<get_before_and_after_names_absolute_call_t>>("dns_get_before_and_after_names_absolute").get_value_or(0);	×
UNCOV 105	f_set_notified = d_lw->readVariable<boost::optional<set_notified_call_t>>("dns_set_notified").get_value_or(0);	×
106
UNCOV 107	auto init = d_lw->readVariable<boost::optional<init_call_t>>("dns_init").get_value_or(0);	×
UNCOV 108	if (init)	×
109	init();	×
110
UNCOV 111	f_deinit = d_lw->readVariable<boost::optional<deinit_call_t>>("dns_deinit").get_value_or(0);	×
112
UNCOV 113	if (f_lookup == nullptr)	×
114	throw PDNSException("dns_lookup missing");	×
115
116	/* see if dnssec support is wanted */
UNCOV 117	d_dnssec = d_lw->readVariable<boost::optional<bool>>("dns_dnssec").get_value_or(false);	×
UNCOV 118	if (d_dnssec) {	×
UNCOV 119	if (f_get_domain_metadata == nullptr)	×
120	throw PDNSException("dns_dnssec is true but dns_get_domain_metadata is missing");	×
UNCOV 121	if (f_get_before_and_after_names_absolute == nullptr)	×
122	throw PDNSException("dns_dnssec is true but dns_get_before_and_after_names_absolute is missing");	×
123	/* domain keys is not strictly speaking necessary for dnssec backend */
UNCOV 124	if (f_get_domain_keys == nullptr)	×
125	g_log << Logger::Warning << "dns_get_domain_keys missing - cannot do live signing" << endl;	×
UNCOV 126	}	×
UNCOV 127	}	×
128
129	bool doesDNSSEC() override
130	{	×
131	return d_dnssec;	×
132	}	×
133
134	void parseLookup(const lookup_result_t& result)
UNCOV 135	{	×
UNCOV 136	for (const auto& row : result) {	×
UNCOV 137	DNSResourceRecord rec;	×
UNCOV 138	for (const auto& item : row.second) {	×
UNCOV 139	if (item.first == "type") {	×
UNCOV 140	if (item.second.which() == 1)	×
141	rec.qtype = QType(boost::get<int>(item.second));	×
UNCOV 142	else if (item.second.which() == 3)	×
143	rec.qtype = boost::get<string>(item.second);	×
UNCOV 144	else if (item.second.which() == 4)	×
UNCOV 145	rec.qtype = boost::get<QType>(item.second);	×
146	else	×
147	throw PDNSException("Unsupported value for type");	×
UNCOV 148	}	×
UNCOV 149	else if (item.first == "name") {	×
UNCOV 150	if (item.second.which() == 3)	×
151	rec.qname = DNSName(boost::get<string>(item.second));	×
UNCOV 152	else if (item.second.which() == 2)	×
UNCOV 153	rec.qname = boost::get<DNSName>(item.second);	×
154	else	×
155	throw PDNSException("Unsupported value for name");	×
UNCOV 156	}	×
UNCOV 157	else if (item.first == "domain_id")	×
UNCOV 158	rec.domain_id = boost::get<int>(item.second);	×
UNCOV 159	else if (item.first == "auth")	×
160	rec.auth = boost::get<bool>(item.second);	×
UNCOV 161	else if (item.first == "last_modified")	×
162	rec.last_modified = static_cast<time_t>(boost::get<int>(item.second));	×
UNCOV 163	else if (item.first == "ttl")	×
UNCOV 164	rec.ttl = boost::get<int>(item.second);	×
UNCOV 165	else if (item.first == "content")	×
UNCOV 166	rec.setContent(boost::get<string>(item.second));	×
167	else if (item.first == "scopeMask")	×
168	rec.scopeMask = boost::get<int>(item.second);	×
169	else	×
170	g_log << Logger::Warning << "Unsupported key '" << item.first << "' in lookup or list result" << endl;	×
UNCOV 171	}	×
UNCOV 172	logResult(rec.qname << " IN " << rec.qtype.toString() << " " << rec.ttl << " " << rec.getZoneRepresentation());	×
UNCOV 173	d_result.push_back(rec);	×
UNCOV 174	}	×
UNCOV 175	if (d_result.empty() && d_debug_log)	×
176	g_log << Logger::Debug << "[" << getPrefix() << "] Got empty result" << endl;	×
UNCOV 177	}	×
178
179	bool list(const DNSName& target, int domain_id, bool /* include_disabled */ = false) override
UNCOV 180	{	×
UNCOV 181	if (f_list == nullptr) {	×
182	g_log << Logger::Error << "[" << getPrefix() << "] dns_list missing - cannot do AXFR" << endl;	×
183	return false;	×
184	}	×
185
UNCOV 186	if (d_result.size() != 0)	×
187	throw PDNSException("list attempted while another was running");	×
188
UNCOV 189	logCall("list", "target=" << target << ",domain_id=" << domain_id);	×
UNCOV 190	list_result_t result = f_list(target, domain_id);	×
191
UNCOV 192	if (result.which() == 0)	×
193	return false;	×
194
UNCOV 195	parseLookup(boost::get<lookup_result_t>(result));	×
196
UNCOV 197	return true;	×
UNCOV 198	}	×
199
200	void lookup(const QType& qtype, const DNSName& qname, int domain_id, DNSPacket* p = nullptr) override
UNCOV 201	{	×
UNCOV 202	if (d_result.size() != 0)	×
203	throw PDNSException("lookup attempted while another was running");	×
204
UNCOV 205	lookup_context_t ctx;	×
UNCOV 206	if (p != NULL) {	×
UNCOV 207	ctx.emplace_back(lookup_context_t::value_type{"source_address", p->getInnerRemote().toString()});	×
UNCOV 208	ctx.emplace_back(lookup_context_t::value_type{"real_source_address", p->getRealRemote().toString()});	×
UNCOV 209	}	×
210
UNCOV 211	logCall("lookup", "qtype=" << qtype.toString() << ",qname=" << qname << ",domain_id=" << domain_id);	×
UNCOV 212	lookup_result_t result = f_lookup(qtype, qname, domain_id, ctx);	×
UNCOV 213	parseLookup(result);	×
UNCOV 214	}	×
215
216	bool get(DNSResourceRecord& rr) override
UNCOV 217	{	×
UNCOV 218	if (d_result.size() == 0)	×
UNCOV 219	return false;	×
UNCOV 220	rr = std::move(d_result.front());	×
UNCOV 221	d_result.pop_front();	×
UNCOV 222	return true;	×
UNCOV 223	}	×
224
225	string directBackendCmd(const string& querystr) override
226	{	×
227	string::size_type pos = querystr.find_first_of(" \t");	×
228	string cmd = querystr;	×
229	string par = "";	×
230	if (pos != string::npos) {	×
231	cmd = querystr.substr(0, pos);	×
232	par = querystr.substr(pos + 1);	×
233	}	×
234	direct_backend_cmd_call_t f = d_lw->readVariable<boost::optional<direct_backend_cmd_call_t>>(cmd).get_value_or(0);	×
235	if (f == nullptr) {	×
236	return cmd + "not found";	×
237	}	×
238	logCall(cmd, "parameter=" << par);	×
239	return f(par);	×
240	}	×
241
242	void setNotified(uint32_t id, uint32_t serial) override
243	{	×
244	if (f_set_notified == NULL)	×
245	return;	×
246	logCall("dns_set_notified", "id=" << static_cast<int>(id) << ",serial=" << serial);	×
247	f_set_notified(static_cast<int>(id), serial);	×
248	}	×
249
250	void parseDomainInfo(const domaininfo_result_t& row, DomainInfo& di)
UNCOV 251	{	×
UNCOV 252	for (const auto& item : row) {	×
UNCOV 253	if (item.first == "account")	×
254	di.account = boost::get<string>(item.second);	×
UNCOV 255	else if (item.first == "last_check")	×
256	di.last_check = static_cast<time_t>(boost::get<long>(item.second));	×
UNCOV 257	else if (item.first == "masters")	×
258	for (const auto& primary : boost::get<vector<string>>(item.second))	×
259	di.primaries.push_back(ComboAddress(primary, 53));	×
UNCOV 260	else if (item.first == "id")	×
UNCOV 261	di.id = static_cast<int>(boost::get<long>(item.second));	×
UNCOV 262	else if (item.first == "notified_serial")	×
263	di.notified_serial = static_cast<unsigned int>(boost::get<long>(item.second));	×
UNCOV 264	else if (item.first == "serial")	×
UNCOV 265	di.serial = static_cast<unsigned int>(boost::get<long>(item.second));	×
266	else if (item.first == "kind")	×
267	di.kind = DomainInfo::stringToKind(boost::get<string>(item.second));	×
268	else	×
269	g_log << Logger::Warning << "Unsupported key '" << item.first << "' in domaininfo result" << endl;	×
UNCOV 270	}	×
UNCOV 271	di.backend = this;	×
UNCOV 272	logResult("zone=" << di.zone << ",serial=" << di.serial << ",kind=" << di.getKindString());	×
UNCOV 273	}	×
274
275	bool getDomainInfo(const DNSName& domain, DomainInfo& di, bool /* getSerial */ = true) override
UNCOV 276	{	×
UNCOV 277	if (f_get_domaininfo == nullptr) {	×
278	// use getAuth instead
UNCOV 279	SOAData sd;	×
UNCOV 280	if (!getAuth(domain, &sd))	×
281	return false;	×
282
UNCOV 283	di.zone = domain;	×
UNCOV 284	di.backend = this;	×
UNCOV 285	di.serial = sd.serial;	×
UNCOV 286	return true;	×
UNCOV 287	}	×
288
UNCOV 289	logCall("get_domaininfo", "domain=" << domain);	×
UNCOV 290	get_domaininfo_result_t result = f_get_domaininfo(domain);	×
291
UNCOV 292	if (result.which() == 0)	×
293	return false;	×
294
UNCOV 295	di.zone = domain;	×
UNCOV 296	parseDomainInfo(boost::get<domaininfo_result_t>(result), di);	×
297
UNCOV 298	return true;	×
UNCOV 299	}	×
300
301	void getAllDomains(vector<DomainInfo>* domains, bool /* getSerial /, bool / include_disabled */) override
UNCOV 302	{	×
UNCOV 303	if (f_get_all_domains == nullptr)	×
304	return;	×
305
UNCOV 306	logCall("get_all_domains", "");	×
UNCOV 307	for (const auto& row : f_get_all_domains()) {	×
UNCOV 308	DomainInfo di;	×
UNCOV 309	di.zone = row.first;	×
UNCOV 310	logResult(di.zone);	×
UNCOV 311	parseDomainInfo(row.second, di);	×
UNCOV 312	domains->push_back(di);	×
UNCOV 313	}	×
UNCOV 314	}	×
315
316	bool getAllDomainMetadata(const DNSName& name, std::map<std::string, std::vector<std::string>>& meta) override
UNCOV 317	{	×
UNCOV 318	if (f_get_all_domain_metadata == nullptr)	×
UNCOV 319	return false;	×
320
321	logCall("get_all_domain_metadata", "name=" << name);	×
322	get_all_domain_metadata_result_t result = f_get_all_domain_metadata(name);	×
323	if (result.which() == 0)	×
324	return false;	×
325
326	for (const auto& row : boost::get<vector<pair<string, domain_metadata_result_t>>>(result)) {	×
327	meta[row.first].clear();	×
328	for (const auto& item : row.second)	×
329	meta[row.first].push_back(item.second);	×
330	logResult("kind=" << row.first << ",value=" << boost::algorithm::join(meta[row.first], ", "));	×
331	}	×
332
333	return true;	×
334	}	×
335
336	bool getDomainMetadata(const DNSName& name, const std::string& kind, std::vector<std::string>& meta) override
337	{	×
338	if (f_get_domain_metadata == nullptr)	×
339	return false;	×
340
341	logCall("get_domain_metadata", "name=" << name << ",kind=" << kind);	×
342	get_domain_metadata_result_t result = f_get_domain_metadata(name, kind);	×
343	if (result.which() == 0)	×
344	return false;	×
345
346	meta.clear();	×
347	for (const auto& item : boost::get<domain_metadata_result_t>(result))	×
348	meta.push_back(item.second);	×
349
350	logResult("value=" << boost::algorithm::join(meta, ", "));	×
351	return true;	×
352	}	×
353
354	bool getDomainKeys(const DNSName& name, std::vector<DNSBackend::KeyData>& keys) override
UNCOV 355	{	×
UNCOV 356	if (f_get_domain_keys == nullptr)	×
UNCOV 357	return false;	×
358
UNCOV 359	logCall("get_domain_keys", "name=" << name);	×
UNCOV 360	get_domain_keys_result_t result = f_get_domain_keys(name);	×
361
UNCOV 362	if (result.which() == 0)	×
363	return false;	×
364
UNCOV 365	for (const auto& row : boost::get<vector<pair<int, keydata_result_t>>>(result)) {	×
UNCOV 366	DNSBackend::KeyData key;	×
UNCOV 367	key.published = true;	×
UNCOV 368	for (const auto& item : row.second) {	×
UNCOV 369	if (item.first == "content")	×
UNCOV 370	key.content = boost::get<string>(item.second);	×
UNCOV 371	else if (item.first == "id")	×
UNCOV 372	key.id = static_cast<unsigned int>(boost::get<int>(item.second));	×
UNCOV 373	else if (item.first == "flags")	×
UNCOV 374	key.flags = static_cast<unsigned int>(boost::get<int>(item.second));	×
UNCOV 375	else if (item.first == "active")	×
UNCOV 376	key.active = boost::get<bool>(item.second);	×
377	else if (item.first == "published")	×
378	key.published = boost::get<bool>(item.second);	×
379	else	×
380	g_log << Logger::Warning << "[" << getPrefix() << "] Unsupported key '" << item.first << "' in keydata result" << endl;	×
UNCOV 381	}	×
UNCOV 382	logResult("id=" << key.id << ",flags=" << key.flags << ",active=" << (key.active ? "true" : "false") << ",published=" << (key.published ? "true" : "false"));	×
UNCOV 383	keys.push_back(key);	×
UNCOV 384	}	×
385
UNCOV 386	return true;	×
UNCOV 387	}	×
388
389	bool getBeforeAndAfterNamesAbsolute(uint32_t id, const DNSName& qname, DNSName& unhashed, DNSName& before, DNSName& after) override
UNCOV 390	{	×
UNCOV 391	if (f_get_before_and_after_names_absolute == nullptr)	×
392	return false;	×
393
UNCOV 394	logCall("get_before_and_after_names_absolute", "id=<<" << id << ",qname=" << qname);	×
UNCOV 395	get_before_and_after_names_absolute_result_t result = f_get_before_and_after_names_absolute(id, qname);	×
396
UNCOV 397	if (result.which() == 0)	×
398	return false;	×
399
UNCOV 400	before_and_after_names_result_t row = boost::get<before_and_after_names_result_t>(result);	×
UNCOV 401	if (row.size() != 3) {	×
402	g_log << Logger::Error << "Invalid result from dns_get_before_and_after_names_absolute, expected array with 3 items, got " << row.size() << "item(s)" << endl;	×
403	return false;	×
404	}	×
UNCOV 405	for (const auto& item : row) {	×
UNCOV 406	DNSName value;	×
UNCOV 407	if (item.second.which() == 0)	×
408	value = DNSName(boost::get<string>(item.second));	×
UNCOV 409	else	×
UNCOV 410	value = DNSName(boost::get<DNSName>(item.second));	×
UNCOV 411	if (item.first == "unhashed")	×
UNCOV 412	unhashed = value;	×
UNCOV 413	else if (item.first == "before")	×
UNCOV 414	before = value;	×
UNCOV 415	else if (item.first == "after")	×
UNCOV 416	after = value;	×
417	else {	×
418	g_log << Logger::Error << "Invalid result from dns_get_before_and_after_names_absolute, unexpected key " << item.first << endl;	×
419	return false;	×
420	}	×
UNCOV 421	}	×
422
UNCOV 423	logResult("unhashed=" << unhashed << ",before=" << before << ",after=" << after);	×
UNCOV 424	return true;	×
UNCOV 425	}	×
426
427	private:
428	std::list<DNSResourceRecord> d_result;
429	bool d_debug_log{false};
430	bool d_dnssec{false};
431
432	lookup_call_t f_lookup;
433	list_call_t f_list;
434
435	get_domaininfo_call_t f_get_domaininfo;
436	get_all_domains_call_t f_get_all_domains;
437
438	get_domain_metadata_call_t f_get_domain_metadata;
439	get_all_domain_metadata_call_t f_get_all_domain_metadata;
440
441	get_domain_keys_call_t f_get_domain_keys;
442
443	get_before_and_after_names_absolute_call_t f_get_before_and_after_names_absolute;
444
445	set_notified_call_t f_set_notified;
446
447	deinit_call_t f_deinit;
448	};

PowerDNS / pdns / 25358587425

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