20618548088

Committed 31 Dec 2025 12:00PM UTC coverage: 72.648% (-0.7%) from 73.336%

Build # 20618548088

Build Type

Pull #16693

github

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web-flow

Commit Message

Merge 3f7d9a75b into 65de281db

Pull Request Pull Request #16693: auth: plumbing for structured logging

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64.96

/modules/gpgsqlbackend/spgsql.cc

/*
 * 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
 * MERCHANTABILITY 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string>
#include "spgsql.hh"
#include <sys/time.h>
#include <iostream>
#include "pdns/logger.hh"
#include "pdns/dns.hh"
#include "pdns/namespaces.hh"
#include <algorithm>

class SPgSQLStatement : public SSqlStatement
{
public:
  SPgSQLStatement(std::shared_ptr<Logr::Logger> log, const string& query, bool dolog, int nparams, SPgSQL* db, unsigned int nstatement)
  {
    d_slog = log;
    d_query = query;
    d_dolog = dolog;
    d_parent = db;
    d_nparams = nparams;
    d_nstatement = nstatement;
  }

  SSqlStatement* bind(const string& name, bool value) override { return bind(name, string(value ? "t" : "f")); }
  SSqlStatement* bind(const string& name, int value) override { return bind(name, std::to_string(value)); }
  SSqlStatement* bind(const string& name, uint32_t value) override { return bind(name, std::to_string(value)); }
  SSqlStatement* bind(const string& name, long value) override { return bind(name, std::to_string(value)); }
  SSqlStatement* bind(const string& name, unsigned long value) override { return bind(name, std::to_string(value)); }
  SSqlStatement* bind(const string& name, long long value) override { return bind(name, std::to_string(value)); }
  SSqlStatement* bind(const string& name, unsigned long long value) override { return bind(name, std::to_string(value)); }
  SSqlStatement* bind(const string& /* name */, const std::string& value) override
  {
    prepareStatement();
    allocate();
    if (d_paridx >= d_nparams) {
      releaseStatement();
      throw SSqlException("Attempt to bind more parameters than query has: " + d_query);
    }
    paramValues[d_paridx] = new char[value.size() + 1];
    memset(paramValues[d_paridx], 0, sizeof(char) * (value.size() + 1));
    value.copy(paramValues[d_paridx], value.size());
    paramLengths[d_paridx] = value.size();
    d_paridx++;
    return this;
  }
  SSqlStatement* bindNull(const string& /* name */) override
  {
    prepareStatement();
    d_paridx++;
    return this;
  } // these are set null in allocate()
  SSqlStatement* execute() override
  {
    prepareStatement();
    if (d_dolog) {
      std::stringstream log_message;
      if (d_paridx) {
        // Log message is similar, but not exactly the same as the postgres server log.
        if (!g_slogStructured) {
          log_message << "Query " << ((long)(void*)this) << ": Parameters: ";
        }
        for (int i = 0; i < d_paridx; i++) {
          if (i != 0) {
            log_message << ", ";
          }
          log_message << "$" << (i + 1) << " = ";
          if (paramValues[i] == nullptr) {
            log_message << "NULL";
          }
          else {
            log_message << "'" << paramValues[i] << "'";
          }
        }
      }
      SLOG({
             g_log << Logger::Warning << "Query " << ((long)(void*)this) << ": Statement: " << d_query << endl;
             if (d_paridx) {
               g_log << Logger::Warning << log_message.str() << endl;
             } }, {
             if (d_paridx) {
               d_slog->info(Logr::Warning, "execute SQL query", "query", Logging::Loggable(d_query), "query arguments", Logging::Loggable(log_message.str()));
             }
             else {
               d_slog->info(Logr::Warning, "execute SQL query", "query", Logging::Loggable(d_query));
             } });
      d_dtime.set();
    }
    if (!d_stmt.empty()) {
      d_res_set = PQexecPrepared(d_db(), d_stmt.c_str(), d_nparams, paramValues, paramLengths, nullptr, 0);
    }
    else {
      d_res_set = PQexecParams(d_db(), d_query.c_str(), d_nparams, nullptr, paramValues, paramLengths, nullptr, 0);
    }
    ExecStatusType status = PQresultStatus(d_res_set);
    if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK && status != PGRES_NONFATAL_ERROR) {
      string errmsg(PQresultErrorMessage(d_res_set));
      releaseStatement();
      throw SSqlException("Fatal error during query: " + d_query + string(": ") + errmsg);
    }
    d_cur_set = 0;
    if (d_dolog) {
      auto diff = d_dtime.udiffNoReset();
      SLOG(g_log << Logger::Warning << "Query " << ((long)(void*)this) << ": " << diff << " us to execute" << endl,
           d_slog->info(Logr::Warning, "query completed", "microseconds", Logging::Loggable(diff)));
    }

    nextResult();
    return this;
  }

  void nextResult()
  {
    if (d_res_set == nullptr)
      return;
    if (d_cur_set >= PQntuples(d_res_set)) {
      PQclear(d_res_set);
      d_res_set = nullptr;
      return;
    }
    if (PQftype(d_res_set, 0) == 1790) { // REFCURSOR
      SLOG(g_log << Logger::Error << "Postgres query returned a REFCURSOR and we do not support those - see https://github.com/PowerDNS/pdns/pull/10259" << endl,
           d_slog->info(Logr::Error, "query returned a REFCURSOR which is not supported by PowerDNS", "more information", Logging::Loggable("https://github.com/PowerDNS/pdns/pull/10259")));
      PQclear(d_res_set);
      d_res_set = nullptr;
    }
    else {
      d_res = d_res_set;
      d_res_set = nullptr;
      d_resnum = PQntuples(d_res);
    }
  }

  bool hasNextRow() override
  {
    if (d_dolog && d_residx == d_resnum) {
      SLOG(g_log << Logger::Warning << "Query " << ((long)(void*)this) << ": " << d_dtime.udiff() << " us total to last row" << endl,
           d_slog->info(Logr::Warning, "all query results procesed", "microseconds", Logging::Loggable(d_dtime.udiff())));
    }

    return d_residx < d_resnum;
  }

  SSqlStatement* nextRow(row_t& row) override
  {
    int i;
    row.clear();
    if (d_residx >= d_resnum || !d_res)
      return this;
    row.reserve(PQnfields(d_res));
    for (i = 0; i < PQnfields(d_res); i++) {
      if (PQgetisnull(d_res, d_residx, i)) {
        row.emplace_back("");
      }
      else if (PQftype(d_res, i) == 16) { // BOOLEAN
        char* val = PQgetvalue(d_res, d_residx, i);
        row.emplace_back(val[0] == 't' ? "1" : "0");
      }
      else {
        row.emplace_back(PQgetvalue(d_res, d_residx, i));
      }
    }
    d_residx++;
    if (d_residx >= d_resnum) {
      PQclear(d_res);
      d_res = nullptr;
      nextResult();
    }
    return this;
  }

  SSqlStatement* getResult(result_t& result) override
  {
    result.clear();
    if (d_res == nullptr)
      return this;
    result.reserve(d_resnum);
    row_t row;
    while (hasNextRow()) {
      nextRow(row);
      result.push_back(std::move(row));
    }
    return this;
  }

  SSqlStatement* reset() override
  {
    int i;
    if (d_res) {
      PQclear(d_res);
    }
    if (d_res_set) {
      PQclear(d_res_set);
    }
    d_res_set = nullptr;
    d_res = nullptr;
    d_paridx = d_residx = d_resnum = 0;
    if (paramValues) {
      for (i = 0; i < d_nparams; i++) {
        if (paramValues[i]) {
          delete[] paramValues[i];
        }
      }
    }
    delete[] paramValues;
    paramValues = nullptr;
    delete[] paramLengths;
    paramLengths = nullptr;
    return this;
  }

  const std::string& getQuery() override { return d_query; }

  ~SPgSQLStatement() override
  {
    releaseStatement();
  }

private:
  PGconn* d_db()
  {
    return d_parent->db();
  }

  void releaseStatement()
  {
    d_prepared = false;
    reset();
    if (!d_stmt.empty()) {
      string cmd = string("DEALLOCATE " + d_stmt);
      PGresult* res = PQexec(d_db(), cmd.c_str());
      PQclear(res);
      d_stmt.clear();
    }
  }

  void prepareStatement()
  {
    if (d_prepared)
      return;
    if (d_parent->usePrepared()) {
      // prepare a statement; name must be unique per session (using d_nstatement to ensure this).
      this->d_stmt = string("stmt") + std::to_string(d_nstatement);
      PGresult* res = PQprepare(d_db(), d_stmt.c_str(), d_query.c_str(), d_nparams, nullptr);
      ExecStatusType status = PQresultStatus(res);
      string errmsg(PQresultErrorMessage(res));
      PQclear(res);
      if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK && status != PGRES_NONFATAL_ERROR) {
        releaseStatement();
        throw SSqlException("Fatal error during prePQpreparepare: " + d_query + string(": ") + errmsg);
      }
    }
    paramValues = nullptr;
    paramLengths = nullptr;
    d_cur_set = d_paridx = d_residx = d_resnum = 0;
    d_res = nullptr;
    d_res_set = nullptr;
    d_prepared = true;
  }

  void allocate()
  {
    if (paramValues != nullptr)
      return;
    paramValues = new char*[d_nparams];
    paramLengths = new int[d_nparams];
    memset(paramValues, 0, sizeof(char*) * d_nparams);
    memset(paramLengths, 0, sizeof(int) * d_nparams);
  }

  string d_query;
  string d_stmt;
  SPgSQL* d_parent;
  PGresult* d_res_set{nullptr};
  PGresult* d_res{nullptr};
  bool d_dolog;
  std::shared_ptr<Logr::Logger> d_slog;
  DTime d_dtime; // only used if d_dolog is set
  bool d_prepared{false};
  int d_nparams;
  int d_paridx{0};
  char** paramValues{nullptr};
  int* paramLengths{nullptr};
  int d_residx{0};
  int d_resnum{0};
  int d_cur_set{0};
  unsigned int d_nstatement;
};

bool SPgSQL::s_dolog;

static string escapeForPQparam(const string& v)
{
  string ret = v;
  boost::replace_all(ret, "\\", "\\\\");
  boost::replace_all(ret, "'", "\\'");

  return string("'") + ret + string("'");
}

SPgSQL::SPgSQL(std::shared_ptr<Logr::Logger> log, const string& database, const string& host, const string& port, const string& user,
               const string& password, const string& extra_connection_parameters, const bool use_prepared)
{
  d_slog = log;
  d_db = nullptr;
  d_in_trx = false;
  d_connectstr = "";
  d_nstatements = 0;

  if (!database.empty())
    d_connectstr += "dbname=" + escapeForPQparam(database);

  if (!user.empty())
    d_connectstr += " user=" + escapeForPQparam(user);

  if (!host.empty())
    d_connectstr += " host=" + escapeForPQparam(host);

  if (!port.empty())
    d_connectstr += " port=" + escapeForPQparam(port);

  if (!extra_connection_parameters.empty())
    d_connectstr += " " + extra_connection_parameters;

  d_connectlogstr = d_connectstr;

  if (!password.empty()) {
    d_connectlogstr += " password=<HIDDEN>";
    d_connectstr += " password=" + escapeForPQparam(password);
  }

  d_use_prepared = use_prepared;

  d_db = PQconnectdb(d_connectstr.c_str());

  if (!d_db || PQstatus(d_db) == CONNECTION_BAD) {
    try {
      throw sPerrorException("Unable to connect to database, connect string: " + d_connectlogstr);
    }
    catch (...) {
      if (d_db)
        PQfinish(d_db);
      d_db = 0;
      throw;
    }
  }
}

void SPgSQL::setLog(bool state)
{
  s_dolog = state;
}

SPgSQL::~SPgSQL()
{
  PQfinish(d_db);
}

SSqlException SPgSQL::sPerrorException(const string& reason)
{
  return SSqlException(reason + string(": ") + (d_db ? PQerrorMessage(d_db) : "no connection"));
}

void SPgSQL::execute(const string& query)
{
  PGresult* res = PQexec(d_db, query.c_str());
  ExecStatusType status = PQresultStatus(res);
  string errmsg(PQresultErrorMessage(res));
  PQclear(res);
  if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK && status != PGRES_NONFATAL_ERROR) {
    throw sPerrorException("Fatal error during query: " + errmsg);
  }
}

std::unique_ptr<SSqlStatement> SPgSQL::prepare(const string& query, int nparams)
{
  d_nstatements++;
  return std::make_unique<SPgSQLStatement>(d_slog, query, s_dolog, nparams, this, d_nstatements);
}

void SPgSQL::startTransaction()
{
  execute("begin");
  d_in_trx = true;
}

void SPgSQL::commit()
{
  execute("commit");
  d_in_trx = false;
}

void SPgSQL::rollback()
{
  execute("rollback");
  d_in_trx = false;
}

bool SPgSQL::isConnectionUsable()
{
  if (PQstatus(d_db) != CONNECTION_OK) {
    return false;
  }

  bool usable = false;
  int sd = PQsocket(d_db);
  bool wasNonBlocking = isNonBlocking(sd);

  if (!wasNonBlocking) {
    if (!setNonBlocking(sd)) {
      return usable;
    }
  }

  usable = isTCPSocketUsable(sd);

  if (!wasNonBlocking) {
    if (!setBlocking(sd)) {
      usable = false;
    }
  }

  return usable;
}

void SPgSQL::reconnect()
{
  PQreset(d_db);
}

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	* MERCHANTABILITY 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
23	#ifdef HAVE_CONFIG_H
24	#include "config.h"
25	#endif
26	#include <string>
27	#include "spgsql.hh"
28	#include <sys/time.h>
29	#include <iostream>
30	#include "pdns/logger.hh"
31	#include "pdns/dns.hh"
32	#include "pdns/namespaces.hh"
33	#include <algorithm>
34
35	class SPgSQLStatement : public SSqlStatement
36	{
37	public:
38	SPgSQLStatement(std::shared_ptr<Logr::Logger> log, const string& query, bool dolog, int nparams, SPgSQL* db, unsigned int nstatement)
39	{	130,129✔
40	d_slog = log;	130,129✔
41	d_query = query;	130,129✔
42	d_dolog = dolog;	130,129✔
43	d_parent = db;	130,129✔
44	d_nparams = nparams;	130,129✔
45	d_nstatement = nstatement;	130,129✔
46	}	130,129✔
47
48	SSqlStatement* bind(const string& name, bool value) override { return bind(name, string(value ? "t" : "f")); }	529,516✔
49	SSqlStatement* bind(const string& name, int value) override { return bind(name, std::to_string(value)); }	547,902✔
50	SSqlStatement* bind(const string& name, uint32_t value) override { return bind(name, std::to_string(value)); }	223,854✔
51	SSqlStatement* bind(const string& name, long value) override { return bind(name, std::to_string(value)); }	81✔
52	SSqlStatement* bind(const string& name, unsigned long value) override { return bind(name, std::to_string(value)); }	11✔
53	SSqlStatement* bind(const string& name, long long value) override { return bind(name, std::to_string(value)); }	×
54	SSqlStatement* bind(const string& name, unsigned long long value) override { return bind(name, std::to_string(value)); }	×
55	SSqlStatement* bind(const string& /* name */, const std::string& value) override
56	{	2,228,038✔
57	prepareStatement();	2,228,038✔
58	allocate();	2,228,038✔
59	if (d_paridx >= d_nparams) {	2,228,038!
60	releaseStatement();	×
61	throw SSqlException("Attempt to bind more parameters than query has: " + d_query);	×
62	}	×
63	paramValues[d_paridx] = new char[value.size() + 1];	2,228,038✔
64	memset(paramValues[d_paridx], 0, sizeof(char) * (value.size() + 1));	2,228,038✔
65	value.copy(paramValues[d_paridx], value.size());	2,228,038✔
66	paramLengths[d_paridx] = value.size();	2,228,038✔
67	d_paridx++;	2,228,038✔
68	return this;	2,228,038✔
69	}	2,228,038✔
70	SSqlStatement* bindNull(const string& /* name */) override
71	{	162,940✔
72	prepareStatement();	162,940✔
73	d_paridx++;	162,940✔
74	return this;	162,940✔
75	} // these are set null in allocate()	162,940✔
76	SSqlStatement* execute() override
77	{	331,911✔
78	prepareStatement();	331,911✔
79	if (d_dolog) {	331,911!
NEW 80	std::stringstream log_message;	×
81	if (d_paridx) {	×
82	// Log message is similar, but not exactly the same as the postgres server log.
NEW 83	if (!g_slogStructured) {	×
NEW 84	log_message << "Query " << ((long)(void*)this) << ": Parameters: ";	×
NEW 85	}	×
86	for (int i = 0; i < d_paridx; i++) {	×
87	if (i != 0) {	×
88	log_message << ", ";	×
89	}	×
90	log_message << "$" << (i + 1) << " = ";	×
91	if (paramValues[i] == nullptr) {	×
92	log_message << "NULL";	×
93	}	×
94	else {	×
95	log_message << "'" << paramValues[i] << "'";	×
96	}	×
97	}	×
98	}	×
NEW 99	SLOG({	×
NEW 100	g_log << Logger::Warning << "Query " << ((long)(void*)this) << ": Statement: " << d_query << endl;	×
NEW 101	if (d_paridx) {	×
NEW 102	g_log << Logger::Warning << log_message.str() << endl;	×
NEW 103	} }, {	×
NEW 104	if (d_paridx) {	×
NEW 105	d_slog->info(Logr::Warning, "execute SQL query", "query", Logging::Loggable(d_query), "query arguments", Logging::Loggable(log_message.str()));	×
NEW 106	}	×
NEW 107	else {	×
NEW 108	d_slog->info(Logr::Warning, "execute SQL query", "query", Logging::Loggable(d_query));	×
NEW 109	} });	×
110	d_dtime.set();	×
111	}	×
112	if (!d_stmt.empty()) {	331,911✔
113	d_res_set = PQexecPrepared(d_db(), d_stmt.c_str(), d_nparams, paramValues, paramLengths, nullptr, 0);	331,910✔
114	}	331,910✔
115	else {	1✔
116	d_res_set = PQexecParams(d_db(), d_query.c_str(), d_nparams, nullptr, paramValues, paramLengths, nullptr, 0);	1✔
117	}	1✔
118	ExecStatusType status = PQresultStatus(d_res_set);	331,911✔
119	if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK && status != PGRES_NONFATAL_ERROR) {	331,911!
120	string errmsg(PQresultErrorMessage(d_res_set));	×
121	releaseStatement();	×
122	throw SSqlException("Fatal error during query: " + d_query + string(": ") + errmsg);	×
123	}	×
124	d_cur_set = 0;	331,911✔
125	if (d_dolog) {	331,911!
126	auto diff = d_dtime.udiffNoReset();	×
NEW 127	SLOG(g_log << Logger::Warning << "Query " << ((long)(void*)this) << ": " << diff << " us to execute" << endl,	×
NEW 128	d_slog->info(Logr::Warning, "query completed", "microseconds", Logging::Loggable(diff)));	×
UNCOV 129	}	×
130
131	nextResult();	331,911✔
132	return this;	331,911✔
133	}	331,911✔
134
135	void nextResult()
136	{	350,297✔
137	if (d_res_set == nullptr)	350,297✔
138	return;	18,386✔
139	if (d_cur_set >= PQntuples(d_res_set)) {	331,911✔
140	PQclear(d_res_set);	313,517✔
141	d_res_set = nullptr;	313,517✔
142	return;	313,517✔
143	}	313,517✔
144	if (PQftype(d_res_set, 0) == 1790) { // REFCURSOR	18,394!
NEW 145	SLOG(g_log << Logger::Error << "Postgres query returned a REFCURSOR and we do not support those - see https://github.com/PowerDNS/pdns/pull/10259" << endl,	×
NEW 146	d_slog->info(Logr::Error, "query returned a REFCURSOR which is not supported by PowerDNS", "more information", Logging::Loggable("https://github.com/PowerDNS/pdns/pull/10259")));	×
147	PQclear(d_res_set);	×
148	d_res_set = nullptr;	×
149	}	×
150	else {	18,394✔
151	d_res = d_res_set;	18,394✔
152	d_res_set = nullptr;	18,394✔
153	d_resnum = PQntuples(d_res);	18,394✔
154	}	18,394✔
155	}	18,394✔
156
157	bool hasNextRow() override
158	{	296,140✔
159	if (d_dolog && d_residx == d_resnum) {	296,140!
NEW 160	SLOG(g_log << Logger::Warning << "Query " << ((long)(void*)this) << ": " << d_dtime.udiff() << " us total to last row" << endl,	×
NEW 161	d_slog->info(Logr::Warning, "all query results procesed", "microseconds", Logging::Loggable(d_dtime.udiff())));	×
UNCOV 162	}	×
163
164	return d_residx < d_resnum;	296,140✔
165	}	296,140✔
166
167	SSqlStatement* nextRow(row_t& row) override
168	{	272,009✔
169	int i;	272,009✔
170	row.clear();	272,009✔
171	if (d_residx >= d_resnum \|\| !d_res)	272,009!
172	return this;	×
173	row.reserve(PQnfields(d_res));	272,009✔
174	for (i = 0; i < PQnfields(d_res); i++) {	2,613,721✔
175	if (PQgetisnull(d_res, d_residx, i)) {	2,341,712✔
176	row.emplace_back("");	198,605✔
177	}	198,605✔
178	else if (PQftype(d_res, i) == 16) { // BOOLEAN	2,143,107✔
179	char* val = PQgetvalue(d_res, d_residx, i);	166✔
180	row.emplace_back(val[0] == 't' ? "1" : "0");	166✔
181	}	166✔
182	else {	2,142,941✔
183	row.emplace_back(PQgetvalue(d_res, d_residx, i));	2,142,941✔
184	}	2,142,941✔
185	}	2,341,712✔
186	d_residx++;	272,009✔
187	if (d_residx >= d_resnum) {	272,009✔
188	PQclear(d_res);	18,387✔
189	d_res = nullptr;	18,387✔
190	nextResult();	18,387✔
191	}	18,387✔
192	return this;	272,009✔
193	}	272,009✔
194
195	SSqlStatement* getResult(result_t& result) override
196	{	1,248✔
197	result.clear();	1,248✔
198	if (d_res == nullptr)	1,248✔
199	return this;	171✔
200	result.reserve(d_resnum);	1,077✔
201	row_t row;	1,077✔
202	while (hasNextRow()) {	2,219✔
203	nextRow(row);	1,142✔
204	result.push_back(std::move(row));	1,142✔
205	}	1,142✔
206	return this;	1,077✔
207	}	1,248✔
208
209	SSqlStatement* reset() override
210	{	454,221✔
211	int i;	454,221✔
212	if (d_res) {	454,221!
213	PQclear(d_res);	×
214	}	×
215	if (d_res_set) {	454,221!
216	PQclear(d_res_set);	×
217	}	×
218	d_res_set = nullptr;	454,221✔
219	d_res = nullptr;	454,221✔
220	d_paridx = d_residx = d_resnum = 0;	454,221✔
221	if (paramValues) {	454,221✔
222	for (i = 0; i < d_nparams; i++) {	2,722,854✔
223	if (paramValues[i]) {	2,390,968✔
224	delete[] paramValues[i];	2,228,030✔
225	}	2,228,030✔
226	}	2,390,968✔
227	}	331,886✔
228	delete[] paramValues;	454,221✔
229	paramValues = nullptr;	454,221✔
230	delete[] paramLengths;	454,221✔
231	paramLengths = nullptr;	454,221✔
232	return this;	454,221✔
233	}	454,221✔
234
235	const std::string& getQuery() override { return d_query; }	×
236
237	~SPgSQLStatement() override
238	{	122,249✔
239	releaseStatement();	122,249✔
240	}	122,249✔
241
242	private:
243	PGconn* d_db()
244	{	346,171✔
245	return d_parent->db();	346,171✔
246	}	346,171✔
247
248	void releaseStatement()
249	{	122,396✔
250	d_prepared = false;	122,396✔
251	reset();	122,396✔
252	if (!d_stmt.empty()) {	122,396✔
253	string cmd = string("DEALLOCATE " + d_stmt);	6,931✔
254	PGresult* res = PQexec(d_db(), cmd.c_str());	6,931✔
255	PQclear(res);	6,931✔
256	d_stmt.clear();	6,931✔
257	}	6,931✔
258	}	122,396✔
259
260	void prepareStatement()
261	{	2,722,888✔
262	if (d_prepared)	2,722,888✔
263	return;	2,715,550✔
264	if (d_parent->usePrepared()) {	7,338✔
265	// prepare a statement; name must be unique per session (using d_nstatement to ensure this).
266	this->d_stmt = string("stmt") + std::to_string(d_nstatement);	7,334✔
267	PGresult* res = PQprepare(d_db(), d_stmt.c_str(), d_query.c_str(), d_nparams, nullptr);	7,334✔
268	ExecStatusType status = PQresultStatus(res);	7,334✔
269	string errmsg(PQresultErrorMessage(res));	7,334✔
270	PQclear(res);	7,334✔
271	if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK && status != PGRES_NONFATAL_ERROR) {	7,334!
272	releaseStatement();	×
273	throw SSqlException("Fatal error during prePQpreparepare: " + d_query + string(": ") + errmsg);	×
274	}	×
275	}	7,334✔
276	paramValues = nullptr;	7,338✔
277	paramLengths = nullptr;	7,338✔
278	d_cur_set = d_paridx = d_residx = d_resnum = 0;	7,338✔
279	d_res = nullptr;	7,338✔
280	d_res_set = nullptr;	7,338✔
281	d_prepared = true;	7,338✔
282	}	7,338✔
283
284	void allocate()
285	{	2,228,040✔
286	if (paramValues != nullptr)	2,228,040✔
287	return;	1,896,154✔
288	paramValues = new char*[d_nparams];	331,886✔
289	paramLengths = new int[d_nparams];	331,886✔
290	memset(paramValues, 0, sizeof(char) d_nparams);	331,886✔
291	memset(paramLengths, 0, sizeof(int) * d_nparams);	331,886✔
292	}	331,886✔
293
294	string d_query;
295	string d_stmt;
296	SPgSQL* d_parent;
297	PGresult* d_res_set{nullptr};
298	PGresult* d_res{nullptr};
299	bool d_dolog;
300	std::shared_ptr<Logr::Logger> d_slog;
301	DTime d_dtime; // only used if d_dolog is set
302	bool d_prepared{false};
303	int d_nparams;
304	int d_paridx{0};
305	char** paramValues{nullptr};
306	int* paramLengths{nullptr};
307	int d_residx{0};
308	int d_resnum{0};
309	int d_cur_set{0};
310	unsigned int d_nstatement;
311	};
312
313	bool SPgSQL::s_dolog;
314
315	static string escapeForPQparam(const string& v)
316	{	3,322✔
317	string ret = v;	3,322✔
318	boost::replace_all(ret, "\\", "\\\\");	3,322✔
319	boost::replace_all(ret, "'", "\\'");	3,322✔
320
321	return string("'") + ret + string("'");	3,322✔
322	}	3,322✔
323
324	SPgSQL::SPgSQL(std::shared_ptr<Logr::Logger> log, const string& database, const string& host, const string& port, const string& user,
325	const string& password, const string& extra_connection_parameters, const bool use_prepared)
326	{	1,912✔
327	d_slog = log;	1,912✔
328	d_db = nullptr;	1,912✔
329	d_in_trx = false;	1,912✔
330	d_connectstr = "";	1,912✔
331	d_nstatements = 0;	1,912✔
332
333	if (!database.empty())	1,912!
334	d_connectstr += "dbname=" + escapeForPQparam(database);	1,912✔
335
336	if (!user.empty())	1,912✔
337	d_connectstr += " user=" + escapeForPQparam(user);	1,410✔
338
339	if (!host.empty())	1,912!
340	d_connectstr += " host=" + escapeForPQparam(host);	×
341
342	if (!port.empty())	1,912!
343	d_connectstr += " port=" + escapeForPQparam(port);	×
344
345	if (!extra_connection_parameters.empty())	1,912!
346	d_connectstr += " " + extra_connection_parameters;	×
347
348	d_connectlogstr = d_connectstr;	1,912✔
349
350	if (!password.empty()) {	1,912!
351	d_connectlogstr += " password=<HIDDEN>";	×
352	d_connectstr += " password=" + escapeForPQparam(password);	×
353	}	×
354
355	d_use_prepared = use_prepared;	1,912✔
356
357	d_db = PQconnectdb(d_connectstr.c_str());	1,912✔
358
359	if (!d_db \|\| PQstatus(d_db) == CONNECTION_BAD) {	1,914!
360	try {	×
361	throw sPerrorException("Unable to connect to database, connect string: " + d_connectlogstr);	×
362	}	×
363	catch (...) {	×
364	if (d_db)	×
365	PQfinish(d_db);	×
366	d_db = 0;	×
367	throw;	×
368	}	×
369	}	×
370	}	1,912✔
371
372	void SPgSQL::setLog(bool state)
373	{	1,914✔
374	s_dolog = state;	1,914✔
375	}	1,914✔
376
377	SPgSQL::~SPgSQL()
378	{	1,801✔
379	PQfinish(d_db);	1,801✔
380	}	1,801✔
381
382	SSqlException SPgSQL::sPerrorException(const string& reason)
383	{	×
384	return SSqlException(reason + string(": ") + (d_db ? PQerrorMessage(d_db) : "no connection"));	×
385	}	×
386
387	void SPgSQL::execute(const string& query)
388	{	1,123✔
389	PGresult* res = PQexec(d_db, query.c_str());	1,123✔
390	ExecStatusType status = PQresultStatus(res);	1,123✔
391	string errmsg(PQresultErrorMessage(res));	1,123✔
392	PQclear(res);	1,123✔
393	if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK && status != PGRES_NONFATAL_ERROR) {	1,123!
394	throw sPerrorException("Fatal error during query: " + errmsg);	×
395	}	×
396	}	1,123✔
397
398	std::unique_ptr<SSqlStatement> SPgSQL::prepare(const string& query, int nparams)
399	{	130,150✔
400	d_nstatements++;	130,150✔
401	return std::make_unique<SPgSQLStatement>(d_slog, query, s_dolog, nparams, this, d_nstatements);	130,150✔
402	}	130,150✔
403
404	void SPgSQL::startTransaction()
405	{	569✔
406	execute("begin");	569✔
407	d_in_trx = true;	569✔
408	}	569✔
409
410	void SPgSQL::commit()
411	{	531✔
412	execute("commit");	531✔
413	d_in_trx = false;	531✔
414	}	531✔
415
416	void SPgSQL::rollback()
417	{	23✔
418	execute("rollback");	23✔
419	d_in_trx = false;	23✔
420	}	23✔
421
422	bool SPgSQL::isConnectionUsable()
423	{	23,287✔
424	if (PQstatus(d_db) != CONNECTION_OK) {	23,287!
425	return false;	×
426	}	×
427
428	bool usable = false;	23,287✔
429	int sd = PQsocket(d_db);	23,287✔
430	bool wasNonBlocking = isNonBlocking(sd);	23,287✔
431
432	if (!wasNonBlocking) {	23,287!
433	if (!setNonBlocking(sd)) {	×
434	return usable;	×
435	}	×
436	}	×
437
438	usable = isTCPSocketUsable(sd);	23,287✔
439
440	if (!wasNonBlocking) {	23,287!
441	if (!setBlocking(sd)) {	×
442	usable = false;	×
443	}	×
444	}	×
445
446	return usable;	23,287✔
447	}	23,287✔
448
449	void SPgSQL::reconnect()
450	{	×
451	PQreset(d_db);	×
452	}	×

PowerDNS / pdns / 20618548088

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