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