Cache
1 week ago
DBPermissions.php
1 week ago
DataEncoder.php
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DatabaseOptions.php
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Env.php
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Escape.php
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Glob.php
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Hooks.php
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Sanitize.php
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ServerVars.php
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Version.php
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WpDefaultDirectories.php
1 week ago
DBPermissions.php
218 lines
| 1 | <?php |
| 2 | |
| 3 | namespace WPStaging\Framework\Utils; |
| 4 | |
| 5 | use wpdb; |
| 6 | use ArrayIterator; |
| 7 | use WPStaging\Framework\Security\Auth; |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | class DBPermissions |
| 14 | { |
| 15 | |
| 16 | protected $wpdb; |
| 17 | |
| 18 | |
| 19 | private $auth; |
| 20 | |
| 21 | public function __construct(wpdb $wpdb, Auth $auth) |
| 22 | { |
| 23 | $this->wpdb = $wpdb; |
| 24 | $this->auth = $auth; |
| 25 | } |
| 26 | |
| 27 | |
| 28 | |
| 29 | |
| 30 | public function ajaxCheckDBPermissions() |
| 31 | { |
| 32 | if (!$this->auth->isAuthenticatedRequest()) { |
| 33 | return; |
| 34 | } |
| 35 | |
| 36 | $type = isset($_POST['type']) ? sanitize_text_field($_POST['type']) : ''; |
| 37 | $grantsToCheck = ['CREATE', 'UPDATE', 'INSERT', 'DROP']; |
| 38 | if ($type === 'push') { |
| 39 | $grantsToCheck[] = 'ALTER'; |
| 40 | } |
| 41 | |
| 42 | if ($this->isAllowed(['ALL PRIVILEGES']) || $this->isAllowed($grantsToCheck)) { |
| 43 | wp_send_json_success(); |
| 44 | } |
| 45 | |
| 46 | $action = !empty($type) ? $type : 'restore'; |
| 47 | $permissions = $action === 'push' ? 'CREATE, UPDATE, ALTER, INSERT, DROP' : 'CREATE, UPDATE, INSERT, DROP'; |
| 48 | |
| 49 | $message = sprintf( |
| 50 | __("The database user might not have sufficient permissions to use the %s action. Continue the process anyway by clicking the 'Proceed' button or change the user's DB permissions and resume the process.<br/><br/> Required permissions are: %s.", 'wp-staging'), |
| 51 | $action, |
| 52 | $permissions |
| 53 | ); |
| 54 | |
| 55 | |
| 56 | $message = '<span id="wpstg-permission-info-output">' . $message . '</span>'; |
| 57 | $message .= '<span id="wpstg-permission-info-data">' . $this->getDebugInfo() . '</span>'; |
| 58 | $message .= '<br/><button type="button" id="wpstg-db-permission-show-full-message" class="wpstg-link-btn wpstg-blue-primary">' . __("Show Full Message", "wp-staging") . '</button>'; |
| 59 | |
| 60 | wp_send_json_error([ |
| 61 | 'message' => wp_kses_post($message), |
| 62 | ]); |
| 63 | } |
| 64 | |
| 65 | |
| 66 | |
| 67 | |
| 68 | |
| 69 | |
| 70 | |
| 71 | public function isAllowed(array $grantsToCheck): bool |
| 72 | { |
| 73 | $grants = $this->wpdb->get_results("SHOW GRANTS;"); |
| 74 | if (empty($grants) || $this->wpdb->last_error) { |
| 75 | return false; |
| 76 | } |
| 77 | |
| 78 | $hasGranted = array_filter($grants, function ($grant) use ($grantsToCheck) { |
| 79 | $grantString = (new ArrayIterator((array)$grant))->current(); |
| 80 | |
| 81 | |
| 82 | if (!$this->hasGrantForCurrentDatabase($grantString)) { |
| 83 | return false; |
| 84 | } |
| 85 | |
| 86 | |
| 87 | if ($this->hasAllPrivileges($grantString)) { |
| 88 | return true; |
| 89 | } |
| 90 | |
| 91 | |
| 92 | return $this->hasRequiredPermissions($grantString, $grantsToCheck); |
| 93 | }); |
| 94 | |
| 95 | return !empty($hasGranted); |
| 96 | } |
| 97 | |
| 98 | |
| 99 | |
| 100 | |
| 101 | public function getDebugInfo(): string |
| 102 | { |
| 103 | $dbUser = empty($_POST['databaseUser']) ? DB_USER : sanitize_text_field($_POST['databaseUser']); |
| 104 | $dbName = empty($_POST['databaseDatabase']) ? DB_NAME : sanitize_text_field($_POST['databaseDatabase']); |
| 105 | $dbHost = empty($_POST['databaseServer']) ? DB_HOST : sanitize_text_field($_POST['databaseServer']); |
| 106 | |
| 107 | $data = '<textarea class="wpstg-permission-info-output wpstg-textbox" readonly="readonly" name="wpstg-permission-info" title="' . __('Please copy and paste this message and report it to us!', 'wp-staging') . '">'; |
| 108 | $data .= PHP_EOL . __('DB Name: ', 'wp-staging') . $dbName; |
| 109 | $data .= PHP_EOL . __('DB User: ', 'wp-staging') . $dbUser; |
| 110 | $data .= PHP_EOL . __('DB Host: ', 'wp-staging') . $dbHost; |
| 111 | |
| 112 | $grants = $this->wpdb->get_results("SHOW GRANTS;"); |
| 113 | if (empty($grants) || $this->wpdb->last_error) { |
| 114 | $data .= PHP_EOL . __('wpdb query error: ', 'wp-staging') . $this->wpdb->last_error; |
| 115 | return wp_kses_post($data); |
| 116 | } |
| 117 | |
| 118 | $grantsHtml = ''; |
| 119 | foreach ($grants as $grant) { |
| 120 | $grantString = (new ArrayIterator((array)$grant))->current(); |
| 121 | $grantString = preg_replace('/IDENTIFIED BY PASSWORD\s+([\'"])(?:\\\\.|(?!\1).)*\1/', "IDENTIFIED BY PASSWORD '********'", $grantString); |
| 122 | $grantString = preg_replace('/IDENTIFIED BY\s+([\'"])(?:\\\\.|(?!\1).)*\1/', "IDENTIFIED BY '********'", $grantString); |
| 123 | $grantsHtml .= PHP_EOL . $grantString . ';'; |
| 124 | } |
| 125 | |
| 126 | $data .= PHP_EOL . __('User Grants: ', 'wp-staging') . $grantsHtml; |
| 127 | $data .= '</textarea>'; |
| 128 | |
| 129 | return wp_kses_post($data); |
| 130 | } |
| 131 | |
| 132 | |
| 133 | |
| 134 | |
| 135 | |
| 136 | public function setDB(wpdb $wpdb) |
| 137 | { |
| 138 | $this->wpdb = $wpdb; |
| 139 | } |
| 140 | |
| 141 | |
| 142 | |
| 143 | |
| 144 | |
| 145 | private function hasGrantForCurrentDatabase(string $grantString): bool |
| 146 | { |
| 147 | $dbName = $this->wpdb->dbname; |
| 148 | |
| 149 | if (stripos($grantString, '*.*') !== false) { |
| 150 | return true; |
| 151 | } |
| 152 | |
| 153 | |
| 154 | |
| 155 | |
| 156 | $escapedDbName = str_replace('_', '\\_', $dbName); |
| 157 | |
| 158 | $patterns = [ |
| 159 | '/\bON\s+\*\.\*/i', |
| 160 | '/\bON\s+`' . preg_quote($dbName, '/') . '`\.\*/i', |
| 161 | '/\bON\s+`' . preg_quote($escapedDbName, '/') . '`\.\*/i', |
| 162 | '/\bON\s+"' . preg_quote($dbName, '/') . '"\.\*/i', |
| 163 | '/\bON\s+"' . preg_quote($escapedDbName, '/') . '"\.\*/i', |
| 164 | '/\bON\s+' . preg_quote($dbName, '/') . '\.\*/i', |
| 165 | '/\bON\s+' . preg_quote($escapedDbName, '/') . '\.\*/i', |
| 166 | '/`' . preg_quote($dbName, '/') . '`\.\*/i', |
| 167 | '/`' . preg_quote($escapedDbName, '/') . '`\.\*/i', |
| 168 | '/"' . preg_quote($dbName, '/') . '"\.\*/i', |
| 169 | '/"' . preg_quote($escapedDbName, '/') . '"\.\*/i', |
| 170 | '/\b' . preg_quote($dbName, '/') . '\.\*/i', |
| 171 | '/\b' . preg_quote($escapedDbName, '/') . '\.\*/i', |
| 172 | ]; |
| 173 | foreach ($patterns as $pattern) { |
| 174 | if (preg_match($pattern, $grantString)) { |
| 175 | return true; |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | return false; |
| 180 | } |
| 181 | |
| 182 | |
| 183 | |
| 184 | |
| 185 | |
| 186 | private function hasAllPrivileges(string $grantString): bool |
| 187 | { |
| 188 | return preg_match('/\bGRANT\s+ALL(\s+PRIVILEGES)?\b/i', $grantString) === 1; |
| 189 | } |
| 190 | |
| 191 | |
| 192 | |
| 193 | |
| 194 | |
| 195 | |
| 196 | private function hasRequiredPermissions(string $grantString, array $grantsToCheck): bool |
| 197 | { |
| 198 | if (!preg_match('/GRANT\s+(.*?)\s+ON\s+/i', $grantString, $matches)) { |
| 199 | return false; |
| 200 | } |
| 201 | |
| 202 | $permissionsString = strtoupper(trim($matches[1])); |
| 203 | $permissionsString = preg_replace('/\s*,\s*/', ',', $permissionsString); |
| 204 | $grantedPermissions = array_filter(array_map('trim', explode(',', $permissionsString))); |
| 205 | $grantedPermissionsAssoc = array_flip($grantedPermissions); |
| 206 | |
| 207 | |
| 208 | foreach ($grantsToCheck as $requiredPermission) { |
| 209 | $requiredPermission = strtoupper(trim($requiredPermission)); |
| 210 | if (!in_array($requiredPermission, $grantedPermissions, true)) { |
| 211 | return false; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | return true; |
| 216 | } |
| 217 | } |
| 218 |