init web ems all

2024-09-27 17:13:36 +08:00
parent 81c97acbe9
commit 5cc56f8078
4263 changed files with 798779 additions and 0 deletions
--- a/phpMyAdmin/vendor/phpmyadmin/sql-parser/src/Utils/Misc.php
+++ b/phpMyAdmin/vendor/phpmyadmin/sql-parser/src/Utils/Misc.php
@@ -0,0 +1,108 @@
+<?php
+
+/**
+ * Miscellaneous utilities.
+ */
+
+namespace PhpMyAdmin\SqlParser\Utils;
+
+use PhpMyAdmin\SqlParser\Components\Expression;
+use PhpMyAdmin\SqlParser\Statements\SelectStatement;
+
+/**
+ * Miscellaneous utilities.
+ *
+ * @category   Misc
+ *
+ * @license    https://www.gnu.org/licenses/gpl-2.0.txt GPL-2.0+
+ */
+class Misc
+{
+    /**
+     * Gets a list of all aliases and their original names.
+     *
+     * @param SelectStatement $statement the statement to be processed
+     * @param string          $database  the name of the database
+     *
+     * @return array
+     */
+    public static function getAliases($statement, $database)
+    {
+        if (! ($statement instanceof SelectStatement)
+            || empty($statement->expr)
+            || empty($statement->from)
+        ) {
+            return array();
+        }
+
+        $retval = array();
+
+        $tables = array();
+
+        /**
+         * Expressions that may contain aliases.
+         * These are extracted from `FROM` and `JOIN` keywords.
+         *
+         * @var Expression[]
+         */
+        $expressions = $statement->from;
+
+        // Adding expressions from JOIN.
+        if (! empty($statement->join)) {
+            foreach ($statement->join as $join) {
+                $expressions[] = $join->expr;
+            }
+        }
+
+        foreach ($expressions as $expr) {
+            if (! isset($expr->table) || ($expr->table === '')) {
+                continue;
+            }
+
+            $thisDb = (isset($expr->database) && ($expr->database !== '')) ?
+                $expr->database : $database;
+
+            if (! isset($retval[$thisDb])) {
+                $retval[$thisDb] = array(
+                    'alias' => null,
+                    'tables' => array()
+                );
+            }
+
+            if (! isset($retval[$thisDb]['tables'][$expr->table])) {
+                $retval[$thisDb]['tables'][$expr->table] = array(
+                    'alias' => (isset($expr->alias) && ($expr->alias !== '')) ?
+                        $expr->alias : null,
+                    'columns' => array()
+                );
+            }
+
+            if (! isset($tables[$thisDb])) {
+                $tables[$thisDb] = array();
+            }
+            $tables[$thisDb][$expr->alias] = $expr->table;
+        }
+
+        foreach ($statement->expr as $expr) {
+            if (! isset($expr->column, $expr->alias) || ($expr->column === '') || ($expr->alias === '')
+            ) {
+                continue;
+            }
+
+            $thisDb = (isset($expr->database) && ($expr->database !== '')) ?
+                $expr->database : $database;
+
+            if (isset($expr->table) && ($expr->table !== '')) {
+                $thisTable = isset($tables[$thisDb][$expr->table]) ?
+                    $tables[$thisDb][$expr->table] : $expr->table;
+                $retval[$thisDb]['tables'][$thisTable]['columns'][$expr->column] = $expr->alias;
+            } else {
+                foreach ($retval[$thisDb]['tables'] as &$table) {
+                    $table['columns'][$expr->column] = $expr->alias;
+                }
+            }
+        }
+
+        return $retval;
+    }
+}