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Rev | Author | Line No. | Line |
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635 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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1086 | daniel-mar | 5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
635 | daniel-mar | 6 | * |
7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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8 | * you may not use this file except in compliance with the License. |
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9 | * You may obtain a copy of the License at |
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10 | * |
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11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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12 | * |
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13 | * Unless required by applicable law or agreed to in writing, software |
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14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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16 | * See the License for the specific language governing permissions and |
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17 | * limitations under the License. |
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18 | */ |
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19 | |||
1050 | daniel-mar | 20 | namespace ViaThinkSoft\OIDplus; |
635 | daniel-mar | 21 | |
1086 | daniel-mar | 22 | // phpcs:disable PSR1.Files.SideEffects |
23 | \defined('INSIDE_OIDPLUS') or die; |
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24 | // phpcs:enable PSR1.Files.SideEffects |
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25 | |||
635 | daniel-mar | 26 | class OIDplusDatabaseConnectionPgSql extends OIDplusDatabaseConnection { |
1130 | daniel-mar | 27 | /** |
28 | * @var mixed|null |
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29 | */ |
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635 | daniel-mar | 30 | private $conn = null; |
1130 | daniel-mar | 31 | |
32 | /** |
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33 | * @var array |
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34 | */ |
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635 | daniel-mar | 35 | private $already_prepared = array(); |
1130 | daniel-mar | 36 | |
37 | /** |
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38 | * @var string|null |
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39 | */ |
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635 | daniel-mar | 40 | private $last_error = null; // do the same like MySQL+PDO, just to be equal in the behavior |
41 | |||
1116 | daniel-mar | 42 | /** |
43 | * @param string $sql |
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44 | * @param array|null $prepared_args |
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45 | * @return OIDplusQueryResultPgSql |
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46 | * @throws OIDplusException |
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47 | */ |
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48 | public function doQuery(string $sql, array $prepared_args=null): OIDplusQueryResult { |
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635 | daniel-mar | 49 | $this->last_error = null; |
50 | if (is_null($prepared_args)) { |
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51 | $res = @pg_query($this->conn, $sql); |
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52 | |||
53 | if ($res === false) { |
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54 | $this->last_error = pg_last_error($this->conn); |
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55 | throw new OIDplusSQLException($sql, $this->error()); |
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56 | } else { |
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57 | return new OIDplusQueryResultPgSql($res); |
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58 | } |
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59 | } else { |
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60 | // convert ? ? ? to $1 $2 $3 |
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61 | $sql = preg_replace_callback('@\\?@', function($found) { |
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62 | static $i = 0; |
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63 | $i++; |
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64 | return '$'.$i; |
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786 | daniel-mar | 65 | }, $sql, count($prepared_args)); |
635 | daniel-mar | 66 | |
67 | $prepare_name = 'OIDplus_ps_'.sha1($sql); |
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68 | if (!in_array($prepare_name, $this->already_prepared)) { |
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69 | $res = @pg_prepare($this->conn, $prepare_name, $sql); |
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70 | if ($res === false) { |
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71 | $this->last_error = pg_last_error($this->conn); |
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72 | throw new OIDplusSQLException($sql, _L('Cannot prepare statement').': '.$this->error()); |
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73 | } |
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74 | $this->already_prepared[] = $prepare_name; |
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75 | } |
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76 | |||
77 | foreach ($prepared_args as &$value) { |
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78 | if (is_bool($value)) $value = $value ? '1' : '0'; |
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79 | } |
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1316 | daniel-mar | 80 | unset($value); |
635 | daniel-mar | 81 | |
82 | $ps = pg_execute($this->conn, $prepare_name, $prepared_args); |
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83 | if ($ps === false) { |
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84 | $this->last_error = pg_last_error($this->conn); |
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85 | throw new OIDplusSQLException($sql, $this->error()); |
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86 | } |
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87 | return new OIDplusQueryResultPgSql($ps); |
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88 | } |
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89 | } |
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90 | |||
1116 | daniel-mar | 91 | /** |
92 | * @return int |
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93 | */ |
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1160 | daniel-mar | 94 | public function doInsertId(): int { |
635 | daniel-mar | 95 | try { |
96 | return (int)$this->query('select lastval() as id')->fetch_object()->id; |
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1050 | daniel-mar | 97 | } catch (\Exception $e) { |
635 | daniel-mar | 98 | return 0; |
99 | } |
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100 | } |
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101 | |||
1116 | daniel-mar | 102 | /** |
103 | * @return string |
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104 | */ |
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635 | daniel-mar | 105 | public function error(): string { |
106 | $err = $this->last_error; |
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107 | if ($err == null) $err = ''; |
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108 | return $err; |
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109 | } |
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110 | |||
1116 | daniel-mar | 111 | /** |
112 | * @return void |
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113 | * @throws OIDplusConfigInitializationException |
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114 | * @throws OIDplusException |
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115 | */ |
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635 | daniel-mar | 116 | protected function doConnect()/*: void*/ { |
117 | if (!function_exists('pg_connect')) throw new OIDplusConfigInitializationException(_L('PHP extension "%1" not installed','PostgreSQL')); |
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118 | |||
119 | // Try connecting to the database |
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120 | ob_start(); |
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121 | $err = ''; |
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122 | try { |
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123 | $host = OIDplus::baseConfig()->getValue('PGSQL_HOST', 'localhost:5432'); |
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124 | $username = OIDplus::baseConfig()->getValue('PGSQL_USERNAME', 'postgres'); |
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125 | $password = OIDplus::baseConfig()->getValue('PGSQL_PASSWORD', ''); |
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126 | $database = OIDplus::baseConfig()->getValue('PGSQL_DATABASE', 'oidplus'); |
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814 | daniel-mar | 127 | $socket = OIDplus::baseConfig()->getValue('PGSQL_SOCKET', ''); |
128 | if ($socket != '') { |
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129 | $hostname = $socket; |
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130 | $port = ''; |
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131 | } else { |
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132 | list($hostname, $port) = explode(':', "$host:5432"); |
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133 | } |
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134 | |||
135 | $connection_string = array(); |
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1262 | daniel-mar | 136 | if ($hostname != '') $connection_string[] = "host='".str_replace("'", "\\'", $hostname)."'"; |
137 | if ($username != '') $connection_string[] = "user='".str_replace("'", "\\'", $username)."'"; |
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138 | if ($password != '') $connection_string[] = "password='".str_replace("'", "\\'", $password)."'"; |
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139 | if ($port != '') $connection_string[] = "port='".str_replace("'", "\\'", $port)."'"; |
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140 | if ($database != '') $connection_string[] = "dbname='".str_replace("'", "\\'", $database)."'"; |
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814 | daniel-mar | 141 | |
635 | daniel-mar | 142 | // We need to use PGSQL_CONNECT_FORCE_NEW because we require two connectoins (for isolated log message queries) |
814 | daniel-mar | 143 | $this->conn = pg_connect(implode(' ', $connection_string), PGSQL_CONNECT_FORCE_NEW); |
635 | daniel-mar | 144 | } finally { |
145 | # TODO: this does not seem to work?! (at least not for CLI) |
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146 | $err = ob_get_contents(); |
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147 | ob_end_clean(); |
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148 | } |
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149 | |||
150 | if (!$this->conn) { |
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863 | daniel-mar | 151 | throw new OIDplusConfigInitializationException(trim(_L('Connection to the database failed!').' ' . strip_tags($err))); |
635 | daniel-mar | 152 | } |
153 | |||
154 | $this->already_prepared = array(); |
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155 | $this->last_error = null; |
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156 | |||
157 | try { |
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158 | $this->query("SET NAMES 'utf8'"); |
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1050 | daniel-mar | 159 | } catch (\Exception $e) { |
635 | daniel-mar | 160 | } |
161 | } |
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162 | |||
1116 | daniel-mar | 163 | /** |
164 | * @return void |
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165 | */ |
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635 | daniel-mar | 166 | protected function doDisconnect()/*: void*/ { |
167 | $this->already_prepared = array(); |
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168 | if (!is_null($this->conn)) { |
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169 | pg_close($this->conn); |
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170 | $this->conn = null; |
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171 | } |
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172 | } |
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173 | |||
1116 | daniel-mar | 174 | /** |
175 | * @var bool |
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176 | */ |
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635 | daniel-mar | 177 | private $intransaction = false; |
178 | |||
1116 | daniel-mar | 179 | /** |
180 | * @return bool |
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181 | */ |
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635 | daniel-mar | 182 | public function transaction_supported(): bool { |
183 | return true; |
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184 | } |
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185 | |||
1116 | daniel-mar | 186 | /** |
187 | * @return int |
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188 | */ |
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635 | daniel-mar | 189 | public function transaction_level(): int { |
190 | return $this->intransaction ? 1 : 0; |
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191 | } |
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192 | |||
1116 | daniel-mar | 193 | /** |
194 | * @return void |
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195 | * @throws OIDplusException |
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196 | */ |
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635 | daniel-mar | 197 | public function transaction_begin()/*: void*/ { |
198 | if ($this->intransaction) throw new OIDplusException(_L('Nested transactions are not supported by this database plugin.')); |
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199 | $this->query('begin transaction'); |
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200 | $this->intransaction = true; |
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201 | } |
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202 | |||
1116 | daniel-mar | 203 | /** |
204 | * @return void |
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205 | * @throws OIDplusException |
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206 | */ |
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635 | daniel-mar | 207 | public function transaction_commit()/*: void*/ { |
208 | $this->query('commit'); |
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209 | $this->intransaction = false; |
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210 | } |
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211 | |||
1116 | daniel-mar | 212 | /** |
213 | * @return void |
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214 | * @throws OIDplusException |
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215 | */ |
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635 | daniel-mar | 216 | public function transaction_rollback()/*: void*/ { |
217 | $this->query('rollback'); |
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218 | $this->intransaction = false; |
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219 | } |
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220 | |||
1116 | daniel-mar | 221 | /** |
222 | * @return string |
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223 | */ |
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635 | daniel-mar | 224 | public function sqlDate(): string { |
225 | return 'now()'; |
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226 | } |
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227 | |||
1116 | daniel-mar | 228 | /** |
229 | * @param bool $mustExist |
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230 | * @return OIDplusSqlSlangPlugin|null |
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231 | * @throws OIDplusConfigInitializationException |
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232 | */ |
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635 | daniel-mar | 233 | protected function doGetSlang(bool $mustExist=true)/*: ?OIDplusSqlSlangPlugin*/ { |
234 | $slang = OIDplus::getSqlSlangPlugin('pgsql'); |
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235 | if (is_null($slang)) { |
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1430 | daniel-mar | 236 | throw new OIDplusConfigInitializationException(_L('SQL-Slang plugin "%1" is missing. Please check if it exists in the directory "plugin/sqlSlang". If it is not existing, please recover it from an GIT/SVN snapshot or OIDplus archive file.','pgsql')); |
635 | daniel-mar | 237 | } |
238 | return $slang; |
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239 | } |
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1220 | daniel-mar | 240 | |
241 | /** |
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242 | * @return array |
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243 | */ |
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244 | public function getExtendedInfo(): array { |
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245 | $host = OIDplus::baseConfig()->getValue('PGSQL_HOST', 'localhost:5432'); |
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246 | $username = OIDplus::baseConfig()->getValue('PGSQL_USERNAME', 'postgres'); |
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247 | $password = OIDplus::baseConfig()->getValue('PGSQL_PASSWORD', ''); |
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248 | $database = OIDplus::baseConfig()->getValue('PGSQL_DATABASE', 'oidplus'); |
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249 | $socket = OIDplus::baseConfig()->getValue('PGSQL_SOCKET', ''); |
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250 | if ($socket != '') { |
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251 | $hostname = $socket; |
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252 | $port = ''; |
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253 | } else { |
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254 | list($hostname, $port) = explode(':', "$host:5432"); |
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255 | } |
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256 | return array( |
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257 | _L('Hostname') => $hostname, |
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258 | _L('Port') => $port, |
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259 | _L('Socket') => $socket, |
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260 | _L('Database') => $database, |
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261 | _L('Username') => $username |
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262 | ); |
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263 | } |
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264 | |||
635 | daniel-mar | 265 | } |