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some long running operations, eg. merge-print, run into situation that DB closes our separate sqlfs connection, we try now to reconnect once

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This commit is contained in:
Ralf Becker 2013-08-05 09:47:16 +00:00
parent 57634dc01f
commit e9bf6d69e1
2 changed files with 48 additions and 23 deletions
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9
phpgwapi/inc/class.sqlfs_stream_wrapper.inc.php
View File

@ -1570,6 +1570,15 @@ class sqlfs_stream_wrapper implements iface_stream_wrapper
*/
public static $case_sensitive_equal = '=';
/**
* Reconnect to database
*/
static public function reconnect()
{
unset(self::$pdo);
self::$pdo = self::_pdo();
}
/**
* Create pdo object / connection, as long as pdo is not generally used in eGW
*

62
phpgwapi/inc/class.vfs_stream_wrapper.inc.php
View File

@ -873,45 +873,61 @@ class vfs_stream_wrapper implements iface_stream_wrapper
* @param boolean $check_symlink_components=true check if path contains symlinks in path components other then the last one
* @return array
*/
static function url_stat ( $path, $flags, $try_create_home=false, $check_symlink_components=true, $check_symlink_depth=self::MAX_SYMLINK_DEPTH )
static function url_stat ( $path, $flags, $try_create_home=false, $check_symlink_components=true, $check_symlink_depth=self::MAX_SYMLINK_DEPTH, $try_reconnect=true )
{
if (!($url = self::resolve_url($path,!($flags & STREAM_URL_STAT_LINK), $check_symlink_components)))
{
if (self::LOG_LEVEL > 0) error_log(__METHOD__."('$path',$flags) can NOT resolve path!");
return false;
}
if ($flags & STREAM_URL_STAT_LINK)
{
$stat = @lstat($url); // suppressed the stat failed warnings
}
else
{
$stat = @stat($url); // suppressed the stat failed warnings
if ($stat && ($stat['mode'] & self::MODE_LINK))
try {
if ($flags & STREAM_URL_STAT_LINK)
{
if (!$check_symlink_depth)
$stat = @lstat($url); // suppressed the stat failed warnings
}
else
{
$stat = @stat($url); // suppressed the stat failed warnings
if ($stat && ($stat['mode'] & self::MODE_LINK))
{
if (self::LOG_LEVEL > 0) error_log(__METHOD__."('$path',$flags) maximum symlink depth exceeded, might be a circular symlink!");
$stat = false;
}
elseif (($lpath = self::readlink($url)))
{
if ($lpath[0] != '/') // concat relative path
if (!$check_symlink_depth)
{
$lpath = egw_vfs::concat(parse_url($path,PHP_URL_PATH),'../'.$lpath);
if (self::LOG_LEVEL > 0) error_log(__METHOD__."('$path',$flags) maximum symlink depth exceeded, might be a circular symlink!");
$stat = false;
}
$url = egw_vfs::PREFIX.$lpath;
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($path,$flags) symlif (substr($path,-1) == '/' && $path != '/') $path = substr($path,0,-1); // remove trailing slash eg. added by WebDAVink found and resolved to $url");
// try reading the stat of the link
if ($stat = self::url_stat($lpath, STREAM_URL_STAT_QUIET, false, true, $check_symlink_depth-1))
elseif (($lpath = self::readlink($url)))
{
if(isset($stat['url'])) $url = $stat['url']; // if stat returns an url use that, as there might be more links ...
self::symlinkCache_add($path,$url);
if ($lpath[0] != '/') // concat relative path
{
$lpath = egw_vfs::concat(parse_url($path,PHP_URL_PATH),'../'.$lpath);
}
$url = egw_vfs::PREFIX.$lpath;
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($path,$flags) symlif (substr($path,-1) == '/' && $path != '/') $path = substr($path,0,-1); // remove trailing slash eg. added by WebDAVink found and resolved to $url");
// try reading the stat of the link
if ($stat = self::url_stat($lpath, STREAM_URL_STAT_QUIET, false, true, $check_symlink_depth-1))
{
if(isset($stat['url'])) $url = $stat['url']; // if stat returns an url use that, as there might be more links ...
self::symlinkCache_add($path,$url);
}
}
}
}
}
catch (egw_exception_db $e) {
// some long running operations, eg. merge-print, run into situation that DB closes our separate sqlfs connection
// we try now to reconnect sqlfs_stream_wrapper once
// it's done here in vfs_stream_wrapper as situation can happen in sqlfs, links, stylite.links or stylite.versioning
if ($try_reconnect)
{
// reconnect to db
sqlfs_stream_wrapper::reconnect();
return url_stat($path, $flags, $try_create_home, $check_symlink_components, $check_symlink_depth, false);
}
// if numer of tries is exceeded, re-throw exception
throw $e;
}
// check if a failed url_stat was for a home dir, in that case silently create it
if (!$stat && $try_create_home && egw_vfs::dirname(parse_url($path,PHP_URL_PATH)) == '/home' &&
($id = $GLOBALS['egw']->accounts->name2id(basename($path))) &&