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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 OIDplusDatabaseConnectionMySQLi extends OIDplusDatabaseConnection { |
1130 | daniel-mar | 27 | |
28 | /** |
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29 | * @var mixed|null |
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30 | */ |
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635 | daniel-mar | 31 | private $conn = null; // only with MySQLnd |
1130 | daniel-mar | 32 | |
33 | /** |
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34 | * @var array |
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35 | */ |
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635 | daniel-mar | 36 | private $prepare_cache = array(); |
1130 | daniel-mar | 37 | |
38 | /** |
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39 | * @var string|null |
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40 | */ |
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635 | daniel-mar | 41 | private $last_error = null; // we need that because MySQL divides prepared statement errors and normal query errors, but we have only one "error()" method |
42 | |||
1116 | daniel-mar | 43 | /** |
44 | * @param string $sql |
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45 | * @param array|null $prepared_args |
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46 | * @return OIDplusQueryResultMySQL|OIDplusQueryResultMySQLNoNativeDriver |
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47 | * @throws OIDplusException |
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48 | */ |
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49 | public function doQuery(string $sql, array $prepared_args=null): OIDplusQueryResult { |
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635 | daniel-mar | 50 | $this->last_error = null; |
51 | if (is_null($prepared_args)) { |
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52 | $res = $this->conn->query($sql, MYSQLI_STORE_RESULT); |
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53 | |||
54 | if ($res === false) { |
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55 | $this->last_error = $this->conn->error; |
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56 | throw new OIDplusSQLException($sql, $this->error()); |
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57 | } else { |
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58 | return new OIDplusQueryResultMySQL($res); |
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59 | } |
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60 | } else { |
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61 | if (!is_array($prepared_args)) { |
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62 | throw new OIDplusException(_L('"prepared_args" must be either NULL or an ARRAY.')); |
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63 | } |
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64 | |||
65 | foreach ($prepared_args as &$value) { |
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66 | // MySQLi has problems converting "true/false" to the data type "tinyint(1)" |
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1116 | daniel-mar | 67 | // It seems to be the same issue as in PDO reported 14 years ago at https://bugs.php.net/bug.php?id=57157 |
635 | daniel-mar | 68 | if (is_bool($value)) $value = $value ? '1' : '0'; |
69 | } |
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70 | |||
71 | if (isset($this->prepare_cache[$sql])) { |
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72 | $ps = $this->prepare_cache[$sql]; |
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73 | } else { |
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74 | $ps = $this->conn->prepare($sql); |
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75 | if (!$ps) { |
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76 | $this->last_error = $this->conn->error; |
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77 | throw new OIDplusSQLException($sql, _L('Cannot prepare statement').': '.$this->error()); |
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78 | } |
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79 | |||
80 | // Caching the prepared is very risky |
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81 | // In PDO and ODBC we may not do it, because execute() will |
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82 | // destroy the existing cursors. |
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83 | // (test this with ./?goto=oid%3A1.3.6.1.4.1.37553.8.32488192274 |
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84 | // you will see that 2.999 is missing in the tree) |
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85 | // But $ps->get_result() seems to "clone" the cursor, |
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86 | // so that $ps->execute may be called a second time?! |
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87 | // However, it only works with mysqlnd's get_result, |
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88 | // not with OIDplusQueryResultMySQLNoNativeDriver |
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89 | if (self::nativeDriverAvailable()) { |
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90 | $this->prepare_cache[$sql] = $ps; |
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91 | } |
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92 | } |
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93 | |||
94 | self::bind_placeholder_vars($ps,$prepared_args); |
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95 | if (!$ps->execute()) { |
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96 | $this->last_error = mysqli_stmt_error($ps); |
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97 | throw new OIDplusSQLException($sql, $this->error()); |
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98 | } |
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99 | |||
100 | if (self::nativeDriverAvailable()) { |
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101 | return new OIDplusQueryResultMySQL($ps->get_result()); |
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102 | } else { |
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103 | return new OIDplusQueryResultMySQLNoNativeDriver($ps); |
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104 | } |
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105 | } |
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106 | } |
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107 | |||
1116 | daniel-mar | 108 | /** |
109 | * @return int |
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110 | */ |
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635 | daniel-mar | 111 | public function insert_id(): int { |
112 | return $this->conn->insert_id; |
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113 | } |
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114 | |||
1116 | daniel-mar | 115 | /** |
116 | * @return string |
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117 | */ |
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635 | daniel-mar | 118 | public function error(): string { |
119 | $err = $this->last_error; |
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120 | if ($err == null) $err = ''; |
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121 | return $err; |
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122 | } |
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123 | |||
1116 | daniel-mar | 124 | /** |
125 | * @return void |
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126 | * @throws OIDplusConfigInitializationException |
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127 | * @throws OIDplusException |
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128 | */ |
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635 | daniel-mar | 129 | protected function doConnect()/*: void*/ { |
130 | if (!function_exists('mysqli_connect')) throw new OIDplusException(_L('PHP extension "%1" not installed','MySQLi')); |
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131 | |||
132 | // Try connecting to the database |
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133 | $host = OIDplus::baseConfig()->getValue('MYSQL_HOST', 'localhost'); |
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134 | $username = OIDplus::baseConfig()->getValue('MYSQL_USERNAME', 'root'); |
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135 | $password = OIDplus::baseConfig()->getValue('MYSQL_PASSWORD', ''); |
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136 | $database = OIDplus::baseConfig()->getValue('MYSQL_DATABASE', 'oidplus'); |
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813 | daniel-mar | 137 | $socket = OIDplus::baseConfig()->getValue('MYSQL_SOCKET', ''); |
635 | daniel-mar | 138 | list($hostname,$port) = explode(':', $host.':'.ini_get("mysqli.default_port")); |
139 | $port = intval($port); |
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1050 | daniel-mar | 140 | $this->conn = @new \mysqli($hostname, $username, $password, $database, $port, $socket); |
635 | daniel-mar | 141 | if (!empty($this->conn->connect_error) || ($this->conn->connect_errno != 0)) { |
142 | $message = $this->conn->connect_error; |
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863 | daniel-mar | 143 | throw new OIDplusConfigInitializationException(trim(_L('Connection to the database failed!').' '.$message)); |
635 | daniel-mar | 144 | } |
145 | |||
146 | $this->prepare_cache = array(); |
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147 | $this->last_error = null; |
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148 | |||
149 | $this->query("SET NAMES 'utf8'"); |
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150 | } |
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151 | |||
1116 | daniel-mar | 152 | /** |
153 | * @return void |
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154 | */ |
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635 | daniel-mar | 155 | protected function doDisconnect()/*: void*/ { |
156 | $this->prepare_cache = array(); |
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157 | if (!is_null($this->conn)) { |
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158 | $this->conn->close(); |
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159 | $this->conn = null; |
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160 | } |
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161 | } |
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162 | |||
1116 | daniel-mar | 163 | /** |
164 | * @var bool |
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165 | */ |
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635 | daniel-mar | 166 | private $intransaction = false; |
167 | |||
1116 | daniel-mar | 168 | /** |
169 | * @return bool |
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170 | */ |
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635 | daniel-mar | 171 | public function transaction_supported(): bool { |
172 | return true; |
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173 | } |
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174 | |||
1116 | daniel-mar | 175 | /** |
176 | * @return int |
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177 | */ |
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635 | daniel-mar | 178 | public function transaction_level(): int { |
179 | return $this->intransaction ? 1 : 0; |
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180 | } |
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181 | |||
1116 | daniel-mar | 182 | /** |
183 | * @return void |
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184 | * @throws OIDplusException |
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185 | */ |
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635 | daniel-mar | 186 | public function transaction_begin()/*: void*/ { |
187 | if ($this->intransaction) throw new OIDplusException(_L('Nested transactions are not supported by this database plugin.')); |
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188 | $this->conn->autocommit(false); |
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189 | $this->conn->begin_transaction(); |
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190 | $this->intransaction = true; |
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191 | } |
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192 | |||
1116 | daniel-mar | 193 | /** |
194 | * @return void |
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195 | */ |
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635 | daniel-mar | 196 | public function transaction_commit()/*: void*/ { |
197 | $this->conn->commit(); |
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198 | $this->conn->autocommit(true); |
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199 | $this->intransaction = false; |
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200 | } |
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201 | |||
1116 | daniel-mar | 202 | /** |
203 | * @return void |
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204 | */ |
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635 | daniel-mar | 205 | public function transaction_rollback()/*: void*/ { |
206 | $this->conn->rollback(); |
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207 | $this->conn->autocommit(true); |
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208 | $this->intransaction = false; |
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209 | } |
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210 | |||
1116 | daniel-mar | 211 | /** |
212 | * @return string |
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213 | */ |
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635 | daniel-mar | 214 | public function sqlDate(): string { |
215 | return 'now()'; |
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216 | } |
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217 | |||
1116 | daniel-mar | 218 | /** |
219 | * @return bool |
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220 | * @throws OIDplusException |
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221 | */ |
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635 | daniel-mar | 222 | public static function nativeDriverAvailable(): bool { |
223 | return function_exists('mysqli_fetch_all') && (OIDplus::baseConfig()->getValue('MYSQL_FORCE_MYSQLND_SUPPLEMENT', false) === false); |
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224 | } |
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225 | |||
1116 | daniel-mar | 226 | /** |
227 | * @param object $stmt |
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228 | * @param array $params |
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229 | * @return bool |
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230 | */ |
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1128 | daniel-mar | 231 | private static function bind_placeholder_vars(&$stmt, array $params): bool { |
232 | // Note: "object" is not a type-hint! |
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635 | daniel-mar | 233 | // Credit to: Dave Morgan |
234 | // Code taken from: http://www.devmorgan.com/blog/2009/03/27/dydl-part-3-dynamic-binding-with-mysqli-php/ |
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235 | // https://stackoverflow.com/questions/17219214/how-to-bind-in-mysqli-dynamically |
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236 | if ($params != null) { |
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237 | $types = ''; //initial sting with types |
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238 | foreach ($params as $param) { //for each element, determine type and add |
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239 | if (is_int($param)) { |
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240 | $types .= 'i'; //integer |
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241 | } elseif (is_float($param)) { |
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242 | $types .= 'd'; //double |
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243 | } elseif (is_string($param)) { |
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244 | $types .= 's'; //string |
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245 | } else { |
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246 | $types .= 'b'; //blob and unknown |
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247 | } |
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248 | } |
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249 | |||
250 | $bind_names = array(); |
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251 | $bind_names[] = $types; //first param needed is the type string, e.g.: 'issss' |
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252 | |||
253 | for ($i=0; $i<count($params);$i++) { //go through incoming params and added em to array |
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254 | $bind_name = 'bind' . $i; //give them an arbitrary name |
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255 | $$bind_name = $params[$i]; //add the parameter to the variable variable |
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256 | $bind_names[] = &$$bind_name; //now associate the variable as an element in an array |
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257 | } |
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258 | |||
259 | //error_log("better_mysqli has params ".print_r($bind_names, 1)); |
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260 | //call the function bind_param with dynamic params |
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261 | call_user_func_array(array($stmt,'bind_param'),$bind_names); |
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262 | return true; |
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263 | } else { |
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264 | return false; |
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265 | } |
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266 | } |
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267 | |||
1116 | daniel-mar | 268 | /** |
269 | * @param bool $mustExist |
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270 | * @return OIDplusSqlSlangPlugin|null |
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271 | * @throws OIDplusConfigInitializationException |
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272 | */ |
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635 | daniel-mar | 273 | protected function doGetSlang(bool $mustExist=true)/*: ?OIDplusSqlSlangPlugin*/ { |
274 | $slang = OIDplus::getSqlSlangPlugin('mysql'); |
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275 | if (is_null($slang)) { |
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276 | 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 SVN snapshot or OIDplus TAR.GZ file.','mysql')); |
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277 | } |
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278 | return $slang; |
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279 | } |
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280 | } |