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<?php
function tar_file($filename, $contents) {
$return = pack("a100a8a8a8a12a12", $filename, 644, 0, 0, decoct(strlen($contents)), decoct(time()));
$checksum = 8*32; // space for checksum itself
for ($i=0; $i < strlen($return); $i++) {
$checksum += ord($return{$i});
}
$return .= sprintf("%06o", $checksum) . "\0 ";
return $return . str_repeat("\0", 512 - strlen($return)) . $contents . str_repeat("\0", 511 - (strlen($contents) + 511) % 512);
}
function dump_table($table, $style, $is_view = false) {
if ($_POST["format"] != "sql") {
echo "\xef\xbb\xbf"; // UTF-8 byte order mark
if ($style) {
dump_csv(array_keys(fields($table)));
}
} elseif ($style) {
$create = create_sql($table, $_POST["auto_increment"]);
if ($create) {
if ($style == "DROP+CREATE") {
echo "DROP " . ($is_view ? "VIEW" : "TABLE") . " IF EXISTS " . table($table) . ";\n";
}
if ($is_view) {
// remove DEFINER with current user
$create = preg_replace('~^([A-Z =]+) DEFINER=`' . str_replace("@", "`@`", logged_user()) . '`~', '\\1', $create); //! proper escaping of user
}
echo ($style != "CREATE+ALTER" ? $create : ($is_view ? substr_replace($create, " OR REPLACE", 6, 0) : substr_replace($create, " IF NOT EXISTS", 12, 0))) . ";\n\n";
}
if ($style == "CREATE+ALTER" && !$is_view) {
// create procedure which iterates over original columns and adds new and removes old
$query = "SELECT COLUMN_NAME, COLUMN_DEFAULT, IS_NULLABLE, COLLATION_NAME, COLUMN_TYPE, EXTRA, COLUMN_COMMENT FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = " . q($table) . " ORDER BY ORDINAL_POSITION";
echo "DELIMITER ;;
CREATE PROCEDURE adminer_alter (INOUT alter_command text) BEGIN
DECLARE _column_name, _collation_name, after varchar(64) DEFAULT '';
DECLARE _column_type, _column_default text;
DECLARE _is_nullable char(3);
DECLARE _extra varchar(30);
DECLARE _column_comment varchar(255);
DECLARE done, set_after bool DEFAULT 0;
DECLARE add_columns text DEFAULT '";
$fields = array();
$after = "";
foreach (get_rows($query) as $row) {
$default = $row["COLUMN_DEFAULT"];
$row["default"] = (isset($default) ? q($default) : "NULL");
$row["after"] = q($after); //! rgt AFTER lft, lft AFTER id doesn't work
$row["alter"] = escape_string(idf_escape($row["COLUMN_NAME"])
. " $row[COLUMN_TYPE]"
. ($row["COLLATION_NAME"] ? " COLLATE $row[COLLATION_NAME]" : "")
. (isset($default) ? " DEFAULT " . ($default == "CURRENT_TIMESTAMP" ? $default : $row["default"]) : "")
. ($row["IS_NULLABLE"] == "YES" ? "" : " NOT NULL")
. ($row["EXTRA"] ? " $row[EXTRA]" : "")
. ($row["COLUMN_COMMENT"] ? " COMMENT " . q($row["COLUMN_COMMENT"]) : "")
. ($after ? " AFTER " . idf_escape($after) : " FIRST")
);
echo ", ADD $row[alter]";
$fields[] = $row;
$after = $row["COLUMN_NAME"];
}
echo "';
DECLARE columns CURSOR FOR $query;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
SET @alter_table = '';
OPEN columns;
REPEAT
FETCH columns INTO _column_name, _column_default, _is_nullable, _collation_name, _column_type, _extra, _column_comment;
IF NOT done THEN
SET set_after = 1;
CASE _column_name";
foreach ($fields as $row) {
echo "
WHEN " . q($row["COLUMN_NAME"]) . " THEN
SET add_columns = REPLACE(add_columns, ', ADD $row[alter]', '');
IF NOT (_column_default <=> $row[default]) OR _is_nullable != '$row[IS_NULLABLE]' OR _collation_name != '$row[COLLATION_NAME]' OR _column_type != " . q($row["COLUMN_TYPE"]) . " OR _extra != '$row[EXTRA]' OR _column_comment != " . q($row["COLUMN_COMMENT"]) . " OR after != $row[after] THEN
SET @alter_table = CONCAT(@alter_table, ', MODIFY $row[alter]');
END IF;"; //! don't replace in comment
}
echo "
ELSE
SET @alter_table = CONCAT(@alter_table, ', DROP ', _column_name);
SET set_after = 0;
END CASE;
IF set_after THEN
SET after = _column_name;
END IF;
END IF;
UNTIL done END REPEAT;
CLOSE columns;
IF @alter_table != '' OR add_columns != '' THEN
SET alter_command = CONCAT(alter_command, 'ALTER TABLE " . table($table) . "', SUBSTR(CONCAT(add_columns, @alter_table), 2), ';\\n');
END IF;
END;;
DELIMITER ;
CALL adminer_alter(@adminer_alter);
DROP PROCEDURE adminer_alter;
";
//! indexes
}
}
}
function dump_data($table, $style, $select = "") {
global $connection, $jush;
$max_packet = ($jush == "sqlite" ? 0 : 1048576); // default, minimum is 1024
if ($style) {
if ($_POST["format"] == "sql" && $style == "TRUNCATE+INSERT") {
echo truncate_sql($table) . ";\n";
}
$fields = fields($table);
$result = $connection->query(($select ? $select : "SELECT * FROM " . table($table)), 1); // 1 - MYSQLI_USE_RESULT //! enum and set as numbers
if ($result) {
$insert = "";
$buffer = "";
while ($row = $result->fetch_assoc()) {
if ($_POST["format"] != "sql") {
dump_csv($row);
} else {
if (!$insert) {
$insert = "INSERT INTO " . table($table) . " (" . implode(", ", array_map('idf_escape', array_keys($row))) . ") VALUES";
}
foreach ($row as $key => $val) {
$row[$key] = (isset($val) ? (ereg('int|float|double|decimal', $fields[$key]["type"]) ? $val : q($val)) : "NULL"); //! columns looking like functions
}
$s = implode(",\t", $row);
if ($style == "INSERT+UPDATE") {
$set = array();
foreach ($row as $key => $val) {
$set[] = idf_escape($key) . " = $val";
}
echo "$insert ($s) ON DUPLICATE KEY UPDATE " . implode(", ", $set) . ";\n";
} else {
$s = ($max_packet ? "\n" : " ") . "($s)";
if (!$buffer) {
$buffer = $insert . $s;
} elseif (strlen($buffer) + 2 + strlen($s) < $max_packet) { // 2 - separator and terminator length
$buffer .= ",$s";
} else {
$buffer .= ";\n";
echo $buffer;
$buffer = $insert . $s;
}
}
}
}
if ($_POST["format"] == "sql" && $style != "INSERT+UPDATE" && $buffer) {
$buffer .= ";\n";
echo $buffer;
}
}
}
}
function dump_headers($identifier, $multi_table = false) {
$filename = ($identifier != "" ? friendly_url($identifier) : "adminer");
$output = $_POST["output"];
$ext = ($_POST["format"] == "sql" ? "sql" : ($multi_table ? "tar" : "csv")); // multiple CSV packed to TAR
header("Content-Type: " .
($output == "bz2" ? "application/x-bzip" :
($output == "gz" ? "application/x-gzip" :
($ext == "tar" ? "application/x-tar" :
($ext == "sql" || $output != "file" ? "text/plain" : "text/csv") . "; charset=utf-8"
))));
if ($output != "text") {
header("Content-Disposition: attachment; filename=$filename.$ext" . ($output != "file" && !ereg('[^0-9a-z]', $output) ? ".$output" : ""));
}
session_write_close();
if ($_POST["output"] == "bz2") {
ob_start('bzcompress', 1e6);
}
if ($_POST["output"] == "gz") {
ob_start('gzencode', 1e6);
}
return $ext;
}
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