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Use output buffering for dump compression

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git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@1161 7c3ca157-0c34-0410-bff1-cbf682f78f5c
This commit is contained in:
jakubvrana
2009-10-02 12:31:28 +00:00
parent e40612a46f
commit 89a60e77b2
5 changed files with 41 additions and 58 deletions
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40
adminer/include/export.inc.php
View File

@@ -19,7 +19,7 @@ function dump_triggers($table, $style) {
$s .= "\n" . ($style == 'CREATE+ALTER' ? "DROP TRIGGER IF EXISTS " . idf_escape($row["Trigger"]) . ";;\n" : "")
. "CREATE TRIGGER " . idf_escape($row["Trigger"]) . " $row[Timing] $row[Event] ON " . idf_escape($row["Table"]) . " FOR EACH ROW\n$row[Statement];;\n";
}
dump("$s\nDELIMITER ;\n");
echo "$s\nDELIMITER ;\n";
}
}
}
@@ -27,7 +27,7 @@ function dump_triggers($table, $style) {
function dump_table($table, $style, $is_view = false) {
global $connection;
if ($_POST["format"] == "csv") {
dump("\xef\xbb\xbf"); // UTF-8 byte order mark
echo "\xef\xbb\xbf"; // UTF-8 byte order mark
if ($style) {
dump_csv(array_keys(fields($table)));
}
@@ -35,15 +35,15 @@ function dump_table($table, $style, $is_view = false) {
$result = $connection->query("SHOW CREATE TABLE " . idf_escape($table));
if ($result) {
if ($style == "DROP+CREATE") {
dump("DROP " . ($is_view ? "VIEW" : "TABLE") . " IF EXISTS " . idf_escape($table) . ";\n");
echo "DROP " . ($is_view ? "VIEW" : "TABLE") . " IF EXISTS " . idf_escape($table) . ";\n";
}
$create = $connection->result($result, 1);
dump(($style != "CREATE+ALTER" ? $create : ($is_view ? substr_replace($create, " OR REPLACE", 6, 0) : substr_replace($create, " IF NOT EXISTS", 12, 0))) . ";\n\n");
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 = " . $connection->quote($table) . " ORDER BY ORDINAL_POSITION";
dump("DELIMITER ;;
echo "DELIMITER ;;
CREATE PROCEDURE adminer_alter (INOUT alter_command text) BEGIN
DECLARE _column_name, _collation_name, _column_type, after varchar(64) DEFAULT '';
DECLARE _column_default longtext;
@@ -51,7 +51,7 @@ CREATE PROCEDURE adminer_alter (INOUT alter_command text) BEGIN
DECLARE _extra varchar(20);
DECLARE _column_comment varchar(255);
DECLARE done, set_after bool DEFAULT 0;
DECLARE add_columns text DEFAULT '");
DECLARE add_columns text DEFAULT '";
$fields = array();
$result = $connection->query($query);
$after = "";
@@ -67,11 +67,11 @@ CREATE PROCEDURE adminer_alter (INOUT alter_command text) BEGIN
. ($row["COLUMN_COMMENT"] ? " COMMENT " . $connection->quote($row["COLUMN_COMMENT"]) : "")
. ($after ? " AFTER " . idf_escape($after) : " FIRST")
);
dump(", ADD $row[alter]");
echo ", ADD $row[alter]";
$fields[] = $row;
$after = $row["COLUMN_NAME"];
}
dump("';
echo "';
DECLARE columns CURSOR FOR $query;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
SET @alter_table = '';
@@ -80,16 +80,16 @@ CREATE PROCEDURE adminer_alter (INOUT alter_command text) BEGIN
FETCH columns INTO _column_name, _column_default, _is_nullable, _collation_name, _column_type, _extra, _column_comment;
IF NOT done THEN
SET set_after = 1;
CASE _column_name");
CASE _column_name";
foreach ($fields as $row) {
dump("
echo "
WHEN " . $connection->quote($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 != " . $connection->quote($row["COLUMN_TYPE"]) . " OR _extra != '$row[EXTRA]' OR _column_comment != " . $connection->quote($row["COLUMN_COMMENT"]) . " OR after != $row[after] THEN
SET @alter_table = CONCAT(@alter_table, ', MODIFY $row[alter]');
END IF;"); //! don't replace in comment
END IF;"; //! don't replace in comment
}
dump("
echo "
ELSE
SET @alter_table = CONCAT(@alter_table, ', DROP ', _column_name);
SET set_after = 0;
@@ -108,7 +108,7 @@ DELIMITER ;
CALL adminer_alter(@adminer_alter);
DROP PROCEDURE adminer_alter;
");
";
//! indexes
}
}
@@ -119,7 +119,7 @@ function dump_data($table, $style, $select = "") {
$max_packet = 1048576; // default, minimum is 1024
if ($style) {
if ($_POST["format"] != "csv" && $style == "TRUNCATE+INSERT") {
dump("TRUNCATE " . idf_escape($table) . ";\n");
echo "TRUNCATE " . idf_escape($table) . ";\n";
}
$fields = fields($table);
$result = $connection->query(($select ? $select : "SELECT * FROM " . idf_escape($table)), 1); // 1 - MYSQLI_USE_RESULT //! enum and set as numbers, microtime
@@ -142,7 +142,7 @@ function dump_data($table, $style, $select = "") {
foreach ($row as $key => $val) {
$set[] = idf_escape($key) . " = $val";
}
dump("$insert ($s) ON DUPLICATE KEY UPDATE " . implode(", ", $set) . ";\n");
echo "$insert ($s) ON DUPLICATE KEY UPDATE " . implode(", ", $set) . ";\n";
} else {
$s = "\n($s)";
if (!$buffer) {
@@ -151,7 +151,7 @@ function dump_data($table, $style, $select = "") {
$buffer .= ",$s";
} else {
$buffer .= ";\n";
dump($buffer);
echo $buffer;
$buffer = $insert . $s;
}
}
@@ -159,7 +159,7 @@ function dump_data($table, $style, $select = "") {
}
if ($_POST["format"] != "csv" && $style != "INSERT+UPDATE" && $buffer) {
$buffer .= ";\n";
dump($buffer);
echo $buffer;
}
}
}
@@ -179,5 +179,11 @@ function dump_headers($identifier, $multi_table = false) {
header("Content-Disposition: attachment; filename=$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;
}

23
adminer/include/functions.inc.php
View File

@@ -469,27 +469,6 @@ function process_input($field) {
}
}
/** Print data with optional compression
* @param string null to force output
* @return null
*/
function dump($string = null) { // null $string forces sending of buffer
static $buffer = ""; // used to improve compression and to allow GZ archives unpackable in Total Commander
if (!ereg("text|file", $_POST["output"])) {
$buffer .= $string;
if (!isset($string) || strlen($buffer) > 1e6) {
if ($_POST["output"] == "bz2") {
echo bzcompress($buffer); // should not be called repeatedly but it would require whole buffer in memory or temporary file
} else {
echo gzencode($buffer);
}
$buffer = "";
}
} else {
echo $string;
}
}
/** Print CSV row
* @param array
* @return null
@@ -500,7 +479,7 @@ function dump_csv($row) {
$row[$key] = '"' . str_replace('"', '""', $val) . '"';
}
}
dump(implode(",", $row) . "\n");
echo implode(",", $row) . "\n";
}
/** Apply SQL function