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While building dumps, data are no long bufferized by the script if the user wants it to be displayed on screen or saved as a text file. This may be helpfull for bug #448223 - Dump hangs

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This commit is contained in:
Loïc Chapeaux
2001-12-15 16:38:46 +00:00
parent cb3fc1be93
commit b0cdfeaf2f
3 changed files with 65 additions and 32 deletions
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3
ChangeLog
View File

@@ -13,6 +13,9 @@ $Source$
* footer.inc.php3, lines 11-16: tried to fix bug #493200 - Problems with
PHP 4.1.0. Actually the fix is to skip db connection closing if the
script use persistent connections.
* tbl_dump.php3; libraries/build_dump.php3: data are no long bufferized by
the script if the user wants it to be displayed on screen or saved as a
text file. This may be helpfull for bug #448223 - Dump hangs.
2001-12-14 Lo<4C>c Chapeaux <lolo@phpheaven.net>
* user_details.php3: check/uncheck all links weren't working with js

60
libraries/build_dump.lib.php3
View File

@@ -161,6 +161,8 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
*
* @global boolean whether to use backquotes to allow the use of special
* characters in database, table and fields names or not
* @global integer the number of records
* @global integer the current record position
*
* @access private
*
@@ -171,11 +173,14 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
function PMA_getTableContentFast($db, $table, $add_query = '', $handler, $error_url)
{
global $use_backquotes;
global $rows_cnt;
global $current_row;
$local_query = 'SELECT * FROM ' . PMA_backquote($db) . '.' . PMA_backquote($table) . $add_query;
$result = mysql_query($local_query) or PMA_mysqlDie('', $local_query, '', $error_url);
if ($result != FALSE) {
$fields_cnt = mysql_num_fields($result);
$rows_cnt = mysql_num_rows($result);
// Checks whether the field is an integer or not
for ($j = 0; $j < $fields_cnt; $j++) {
@@ -201,11 +206,12 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
$search = array("\x00", "\x0a", "\x0d", "\x1a"); //\x08\\x09, not required
$replace = array('\0', '\n', '\r', '\Z');
$is_first_row = TRUE;
$current_row = 0;
@set_time_limit($GLOBALS['cfgExecTimeLimit']);
while ($row = mysql_fetch_row($result)) {
$current_row++;
for ($j = 0; $j < $fields_cnt; $j++) {
if (!isset($row[$j])) {
$values[] = 'NULL';
@@ -225,30 +231,28 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
// Extended inserts case
if (isset($GLOBALS['extended_ins'])) {
if ($is_first_row) {
if ($current_row == 1) {
$insert_line = $schema_insert . implode(', ', $values) . ')';
$is_first_row = FALSE;
} else {
$insert_line = '(' . implode(', ', $values) . ')';
$insert_line = '(' . implode(', ', $values) . ')';
}
}
// Other inserts case
else {
$insert_line = $schema_insert . implode(', ', $values) . ')';
$insert_line = $schema_insert . implode(', ', $values) . ')';
}
unset($values);
// Call the handler
$handler($insert_line);
// loic1: send a fake header to bypass browser timeout
header('Expires: 0');
// loic1: send a fake header to bypass browser timeout if data
// are bufferized
if (!empty($GLOBALS['ob_mode'])
|| (isset($GLOBALS['zip']) || isset($GLOBALS['bzip']) || isset($GLOBALS['gzip']))) {
header('Expires: 0');
}
} // end while
// Replace last comma by a semi-column in extended inserts case
if (isset($GLOBALS['extended_ins'])) {
$GLOBALS['tmp_buffer'] = ereg_replace(',([^,]*)$', ';\\1', $GLOBALS['tmp_buffer']);
}
} // end if ($result != FALSE)
mysql_free_result($result);
@@ -276,6 +280,8 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
*
* @global boolean whether to use backquotes to allow the use of special
* characters in database, table and fields names or not
* @global integer the number of records
* @global integer the current record position
*
* @access private
*
@@ -284,16 +290,19 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
function PMA_getTableContentOld($db, $table, $add_query = '', $handler, $error_url)
{
global $use_backquotes;
global $rows_cnt;
global $current_row;
$local_query = 'SELECT * FROM ' . PMA_backquote($db) . '.' . PMA_backquote($table) . $add_query;
$result = mysql_query($local_query) or PMA_mysqlDie('', $local_query, '', $error_url);
$i = 0;
$is_first_row = TRUE;
$current_row = 0;
$fields_cnt = mysql_num_fields($result);
$rows_cnt = mysql_num_rows($result);
@set_time_limit($GLOBALS['cfgExecTimeLimit']); // HaRa
while ($row = mysql_fetch_row($result)) {
$current_row++;
$table_list = '(';
for ($j = 0; $j < $fields_cnt; $j++) {
$table_list .= PMA_backquote(mysql_field_name($result, $j), $use_backquotes) . ', ';
@@ -301,7 +310,7 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
$table_list = substr($table_list, 0, -2);
$table_list .= ')';
if (isset($GLOBALS['extended_ins']) && !$is_first_row) {
if (isset($GLOBALS['extended_ins']) && $current_row > 1) {
$schema_insert = '(';
} else {
if (isset($GLOBALS['showcolumns'])) {
@@ -350,18 +359,16 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
$schema_insert = ereg_replace(', $', '', $schema_insert);
$schema_insert .= ')';
$handler(trim($schema_insert));
++$i;
// loic1: send a fake header to bypass browser timeout
header('Expires: 0');
// loic1: send a fake header to bypass browser timeout if data are
// bufferized
if (!empty($GLOBALS['ob_mode'])
&& (isset($GLOBALS['zip']) || isset($GLOBALS['bzip']) || isset($GLOBALS['gzip']))) {
header('Expires: 0');
}
} // end while
mysql_free_result($result);
// Replace last comma by a semi-column in extended inserts case
if ($i > 0 && isset($GLOBALS['extended_ins'])) {
$GLOBALS['tmp_buffer'] = ereg_replace(',([^,]*)$', ';\\1', $GLOBALS['tmp_buffer']);
}
return TRUE;
} // end of the 'PMA_getTableContentOld()' function
@@ -511,6 +518,13 @@ if (!defined('PMA_BUILD_DUMP_LIB_INCLUDED')){
} // end for
$handler(trim($schema_insert));
++$i;
// loic1: send a fake header to bypass browser timeout if data are
// bufferized
if (!empty($GLOBALS['ob_mode'])
&& (isset($GLOBALS['zip']) || isset($GLOBALS['bzip']) || isset($GLOBALS['gzip']))) {
header('Expires: 0');
}
} // end while
mysql_free_result($result);

34
tbl_dump.php3
View File

@@ -15,12 +15,18 @@ function PMA_myHandler($sql_insert)
global $tmp_buffer;
// Defines the end of line delimiter to use
$eol_dlm = (isset($GLOBALS['extended_ins'])) ? ',' : ';';
// Result will be displays on screen
$eol_dlm = (isset($GLOBALS['extended_ins']) && ($GLOBALS['current_row'] < $GLOBALS['rows_cnt']))
? ','
: ';';
// Result has to be displayed on screen
if (empty($GLOBALS['asfile'])) {
$tmp_buffer .= htmlspecialchars($sql_insert . $eol_dlm . $GLOBALS['crlf']);
echo htmlspecialchars($sql_insert . $eol_dlm . $GLOBALS['crlf']);
}
// Result will be save in a file
// Result has to be saved in a text file
else if (!isset($GLOBALS['zip']) && !isset($GLOBALS['bzip']) && !isset($GLOBALS['gzip'])) {
echo $sql_insert . $eol_dlm . $GLOBALS['crlf'];
}
// Result will be saved in a *zipped file
else {
$tmp_buffer .= $sql_insert . $eol_dlm . $GLOBALS['crlf'];
}
@@ -45,11 +51,15 @@ function PMA_myCsvHandler($sql_insert)
global $add_character;
global $tmp_buffer;
// Result will be displays on screen
// Result has to be displayed on screen
if (empty($GLOBALS['asfile'])) {
$tmp_buffer .= htmlspecialchars($sql_insert) . $add_character;
echo htmlspecialchars($sql_insert) . $add_character;
}
// Result will be save in a file
// Result has to be saved in a text file
else if (!isset($GLOBALS['zip']) && !isset($GLOBALS['bzip']) && !isset($GLOBALS['gzip'])) {
echo $sql_insert . $add_character;
}
// Result will be saved in a *zipped file
else {
$tmp_buffer .= $sql_insert . $add_character;
}
@@ -223,6 +233,11 @@ else {
if (!isset($limit_from) || !isset($limit_to)) {
$limit_from = $limit_to = 0;
}
// loic1: display data if they aren't bufferized
if (!isset($zip) && !isset($bzip) && !isset($gzip)) {
echo $dump_buffer;
$dump_buffer = '';
}
PMA_getTableContent($db, $table, $limit_from, $limit_to, 'PMA_myHandler', $err_url);
$dump_buffer .= $tmp_buffer;
} // end if
@@ -230,7 +245,8 @@ else {
} // end if-else
} // end while
// Don't remove, it makes easier to select & copy frombrowser - staybyte
// staybyte: don't remove, it makes easier to select & copy from
// browser
$dump_buffer .= $crlf;
} // end 'no csv' case
@@ -286,7 +302,7 @@ else if (isset($gzip) && $gzip == 'gzip') {
echo gzencode($dump_buffer);
}
}
// 4. on screen
// 4. on screen or as a text file
else {
echo $dump_buffer;
}