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1232 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
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6 | * |
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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 | |||
20 | namespace ViaThinkSoft\OIDplus; |
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21 | |||
22 | // phpcs:disable PSR1.Files.SideEffects |
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23 | \defined('INSIDE_OIDPLUS') or die; |
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24 | // phpcs:enable PSR1.Files.SideEffects |
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25 | |||
26 | class OIDplusDatabaseConnectionSqlSrv extends OIDplusDatabaseConnection { |
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27 | |||
28 | /** |
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29 | * @var mixed|null |
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30 | */ |
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31 | private $conn = null; |
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32 | |||
33 | /** |
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34 | * @var string|null |
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35 | */ |
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36 | private $last_error = null; |
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37 | |||
38 | /** |
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1233 | daniel-mar | 39 | * @var int |
40 | */ |
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41 | private $rowsAffected = 0; |
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42 | |||
43 | /** |
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44 | * @return int |
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45 | */ |
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46 | public function rowsAffected(): int { |
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47 | return $this->rowsAffected; |
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48 | } |
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49 | |||
50 | /** |
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1232 | daniel-mar | 51 | * @param string $sql |
52 | * @param array|null $prepared_args |
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53 | * @return OIDplusQueryResultSqlSrv |
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54 | * @throws OIDplusException |
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55 | */ |
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56 | public function doQuery(string $sql, array $prepared_args=null): OIDplusQueryResult { |
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57 | $this->last_error = null; |
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58 | try { |
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59 | $res = sqlsrv_query($this->conn, $sql, $prepared_args, |
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60 | array( |
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61 | // SQLSRV_CURSOR_FORWARD ('forward', default) |
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62 | // Lets you move one row at a time starting at the first row of the result set until you reach the end of the result set. |
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63 | // => Does not work with sqlsrv_num_rows(); |
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64 | |||
65 | // SQLSRV_CURSOR_STATIC ('static') |
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66 | // Lets you access rows in any order but will not reflect changes in the database. |
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67 | // => Does not work with transaction rollback?! (Testcase failed) |
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68 | |||
69 | // SQLSRV_CURSOR_DYNAMIC |
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70 | // Lets you access rows in any order and will reflect changes in the database. |
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71 | // => Does not work with sqlsrv_num_rows(); |
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72 | |||
73 | // SQLSRV_CURSOR_KEYSET ('keyset') |
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74 | // Lets you access rows in any order. However, a keyset cursor does not update the row count if a row is deleted from the table (a deleted row is returned with no values). |
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75 | // => Does not work with transaction rollback?! (Testcase failed) |
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76 | |||
77 | // SQLSRV_CURSOR_CLIENT_BUFFERED ('buffered') |
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78 | // Lets you access rows in any order. Creates a client-side cursor query. |
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79 | // => Seems to work fine |
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80 | |||
81 | 'Scrollable' => SQLSRV_CURSOR_CLIENT_BUFFERED |
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82 | ) |
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83 | ); |
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84 | } catch (\Exception $e) { |
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85 | $this->last_error = $e->getMessage(); |
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86 | throw new OIDplusSQLException($sql, $e->getMessage()); |
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87 | } |
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88 | |||
89 | if ($res === false) { |
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90 | $this->last_error = print_r(sqlsrv_errors(), true); |
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91 | throw new OIDplusSQLException($sql, $this->error()); |
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92 | } else { |
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1233 | daniel-mar | 93 | if (str_starts_with(trim(strtolower($sql)),'select')) { |
94 | $this->rowsAffected = sqlsrv_num_rows($res); |
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95 | } else { |
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96 | $this->rowsAffected = sqlsrv_rows_affected($res); |
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97 | } |
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1232 | daniel-mar | 98 | return new OIDplusQueryResultSqlSrv($res); |
99 | } |
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100 | } |
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101 | |||
102 | |||
103 | /** |
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104 | * @return string |
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105 | */ |
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106 | public function error(): string { |
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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 | |||
112 | /** |
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113 | * @return string |
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114 | */ |
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115 | private static function get_sqlsrv_dll_name(): string { |
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116 | ob_start(); |
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117 | phpinfo(INFO_GENERAL); |
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118 | $x = ob_get_contents(); |
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119 | ob_end_clean(); |
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120 | |||
121 | $architecture = |
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122 | preg_match('@Architecture.+(x86|x64)@', $x, $m) ? $m[1] : '*'; |
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123 | |||
124 | $threadsafety = |
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125 | preg_match('@Thread Safety.+(enabled|disabled)@', $x, $m) |
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126 | ? ($m[1] == 'enabled' ? 'ts' : 'nts') : '*'; |
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127 | |||
128 | $m = explode('.',phpversion()); |
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129 | $version = $m[0].$m[1]; |
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130 | |||
131 | // e.g. php_sqlsrv_82_ts_x64.dll |
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1235 | daniel-mar | 132 | return "php_sqlsrv_{$version}_{$threadsafety}_{$architecture}.dll"; |
1232 | daniel-mar | 133 | } |
134 | |||
135 | /** |
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136 | * @return void |
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137 | * @throws OIDplusConfigInitializationException |
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138 | * @throws OIDplusException |
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139 | */ |
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140 | protected function doConnect()/*: void*/ { |
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141 | // Download here: https://learn.microsoft.com/en-us/sql/connect/php/download-drivers-php-sql-server?view=sql-server-ver16 |
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142 | if (!function_exists('sqlsrv_connect')) throw new OIDplusException(_L('PHP extension "%1" not installed',self::get_sqlsrv_dll_name())); |
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143 | |||
144 | // Try connecting to the database |
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1233 | daniel-mar | 145 | $servername = OIDplus::baseConfig()->getValue('SQLSRV_SERVER', 'localhost\oidplus'); |
1232 | daniel-mar | 146 | $username = OIDplus::baseConfig()->getValue('SQLSRV_USERNAME', ''); |
147 | $password = OIDplus::baseConfig()->getValue('SQLSRV_PASSWORD', ''); |
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148 | $database = OIDplus::baseConfig()->getValue('SQLSRV_DATABASE', 'oidplus'); |
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1233 | daniel-mar | 149 | $options = OIDplus::baseConfig()->getValue('SQLSRV_OPTIONS', array()); |
1232 | daniel-mar | 150 | |
1233 | daniel-mar | 151 | if (!isset($options['Database'])) $options['Database'] = $database; |
152 | if (!isset($options['CharacterSet'])) $options['CharacterSet'] = 'UTF-8'; |
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1232 | daniel-mar | 153 | if ($username != '') { |
1233 | daniel-mar | 154 | if (!isset($options['UID'])) $options['UID'] = $username; |
155 | if (!isset($options['PWD'])) $options['PWD'] = $password; |
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1232 | daniel-mar | 156 | } |
157 | |||
1233 | daniel-mar | 158 | $this->conn = @sqlsrv_connect($servername, $options); |
1232 | daniel-mar | 159 | |
160 | if (!$this->conn) { |
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161 | $message = print_r(sqlsrv_errors(), true); |
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162 | throw new OIDplusConfigInitializationException(trim(_L('Connection to the database failed!').' '.$message)); |
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163 | } |
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164 | |||
165 | $this->last_error = null; |
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166 | } |
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167 | |||
168 | /** |
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169 | * @return void |
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170 | */ |
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171 | protected function doDisconnect()/*: void*/ { |
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172 | if (!is_null($this->conn)) { |
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173 | sqlsrv_close($this->conn); |
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174 | $this->conn = null; |
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175 | } |
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176 | } |
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177 | |||
178 | /** |
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179 | * @var bool |
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180 | */ |
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181 | private $intransaction = false; |
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182 | |||
183 | /** |
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184 | * @return bool |
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185 | */ |
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186 | public function transaction_supported(): bool { |
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187 | return true; |
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188 | } |
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189 | |||
190 | /** |
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191 | * @return int |
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192 | */ |
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193 | public function transaction_level(): int { |
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194 | return $this->intransaction ? 1 : 0; |
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195 | } |
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196 | |||
197 | /** |
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198 | * @return void |
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199 | * @throws OIDplusException |
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200 | */ |
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201 | public function transaction_begin()/*: void*/ { |
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202 | if ($this->intransaction) throw new OIDplusException(_L('Nested transactions are not supported by this database plugin.')); |
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1233 | daniel-mar | 203 | if (sqlsrv_begin_transaction($this->conn)) $this->intransaction = true; |
1232 | daniel-mar | 204 | } |
205 | |||
206 | /** |
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207 | * @return void |
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208 | */ |
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209 | public function transaction_commit()/*: void*/ { |
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1233 | daniel-mar | 210 | if (sqlsrv_commit($this->conn)) $this->intransaction = false; |
1232 | daniel-mar | 211 | } |
212 | |||
213 | /** |
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214 | * @return void |
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215 | */ |
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216 | public function transaction_rollback()/*: void*/ { |
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1233 | daniel-mar | 217 | if (sqlsrv_rollback($this->conn)) $this->intransaction = false; |
1232 | daniel-mar | 218 | } |
219 | |||
220 | /** |
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221 | * @param bool $mustExist |
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222 | * @return OIDplusSqlSlangPlugin|null |
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223 | * @throws OIDplusConfigInitializationException |
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224 | */ |
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225 | protected function doGetSlang(bool $mustExist=true)/*: ?OIDplusSqlSlangPlugin*/ { |
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226 | $slang = OIDplus::getSqlSlangPlugin('mssql'); |
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227 | if (is_null($slang)) { |
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228 | 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.','mssql')); |
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229 | } |
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230 | return $slang; |
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231 | } |
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232 | |||
233 | /** |
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234 | * @return array |
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235 | */ |
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236 | public function getExtendedInfo(): array { |
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1233 | daniel-mar | 237 | $servername = OIDplus::baseConfig()->getValue('SQLSRV_SERVER', 'localhost\oidplus'); |
1232 | daniel-mar | 238 | $username = OIDplus::baseConfig()->getValue('SQLSRV_USERNAME', ''); |
239 | $password = OIDplus::baseConfig()->getValue('SQLSRV_PASSWORD', ''); |
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240 | $database = OIDplus::baseConfig()->getValue('SQLSRV_DATABASE', 'oidplus'); |
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1233 | daniel-mar | 241 | $options = OIDplus::baseConfig()->getValue('SQLSRV_OPTIONS', array()); |
242 | |||
243 | $ary_info = array( |
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1232 | daniel-mar | 244 | _L('Hostname') => $servername, |
245 | _L('Username') => $username, |
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246 | _L('Password') => $password != '' ? '('._L('redacted').')' : '', |
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247 | _L('Database') => $database |
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248 | ); |
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1233 | daniel-mar | 249 | foreach ($options as $name => $val) { |
250 | $ary_info[_L('Option %1',$name)] = '"'.$val.'"'; |
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251 | } |
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1234 | daniel-mar | 252 | return $ary_info; |
1232 | daniel-mar | 253 | } |
254 | } |