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Code Issues Releases Wiki Activity

Merge branch '3.3.x'

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This commit is contained in:
Marc Alexander
2019-10-13 12:32:20 +02:00
parent 8737fbac0d 8c2d0c8c36
commit 60da203301
26 changed files with 25 additions and 1034 deletions
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104
phpBB/phpbb/db/extractor/mysql_extractor.php
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@@ -79,14 +79,7 @@ class mysql_extractor extends base_extractor
throw new extractor_not_initialized_exception();
}
if ($this->db->get_sql_layer() === 'mysqli')
{
$this->write_data_mysqli($table_name);
}
else
{
$this->write_data_mysql($table_name);
}
$this->write_data_mysqli($table_name);
}
/**
@@ -179,101 +172,6 @@ class mysql_extractor extends base_extractor
}
}
/**
* Extracts data from database table (for MySQL driver)
*
* @param string $table_name name of the database table
* @return null
* @throws \phpbb\db\extractor\exception\extractor_not_initialized_exception when calling this function before init_extractor()
*/
protected function write_data_mysql($table_name)
{
if (!$this->is_initialized)
{
throw new extractor_not_initialized_exception();
}
$sql = "SELECT *
FROM $table_name";
$result = mysql_unbuffered_query($sql, $this->db->get_db_connect_id());
if ($result != false)
{
$fields_cnt = mysql_num_fields($result);
// Get field information
$field = array();
for ($i = 0; $i < $fields_cnt; $i++)
{
$field[] = mysql_fetch_field($result, $i);
}
$field_set = array();
for ($j = 0; $j < $fields_cnt; $j++)
{
$field_set[] = $field[$j]->name;
}
$search = array("\\", "'", "\x00", "\x0a", "\x0d", "\x1a", '"');
$replace = array("\\\\", "\\'", '\0', '\n', '\r', '\Z', '\\"');
$fields = implode(', ', $field_set);
$sql_data = 'INSERT INTO ' . $table_name . ' (' . $fields . ') VALUES ';
$first_set = true;
$query_len = 0;
$max_len = get_usable_memory();
while ($row = mysql_fetch_row($result))
{
$values = array();
if ($first_set)
{
$query = $sql_data . '(';
}
else
{
$query .= ',(';
}
for ($j = 0; $j < $fields_cnt; $j++)
{
if (!isset($row[$j]) || is_null($row[$j]))
{
$values[$j] = 'NULL';
}
else if ($field[$j]->numeric && ($field[$j]->type !== 'timestamp'))
{
$values[$j] = $row[$j];
}
else
{
$values[$j] = "'" . str_replace($search, $replace, $row[$j]) . "'";
}
}
$query .= implode(', ', $values) . ')';
$query_len += strlen($query);
if ($query_len > $max_len)
{
$this->flush($query . ";\n\n");
$query = '';
$query_len = 0;
$first_set = true;
}
else
{
$first_set = false;
}
}
mysql_free_result($result);
// check to make sure we have nothing left to flush
if (!$first_set && $query)
{
$this->flush($query . ";\n\n");
}
}
}
/**
* Extracts database table structure (for MySQLi or MySQL 3.23.20+)
*