ILIAS  Release_3_10_x_branch Revision 61812
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Public Member Functions | Data Fields | Protected Member Functions | Protected Attributes
ilValidator Class Reference

ILIAS Data Validator & Recovery Tool. More...

+ Inheritance diagram for ilValidator:
+ Collaboration diagram for ilValidator:

Public Member Functions

 ilValidator ($a_log=false)
 Constructor.
 setMode ($a_mode, $a_value)
 set mode of ilValidator Usage: setMode("restore",true) => enable object restorey setMode("all",true) => enable all features For all possible modes see variables declaration
 isModeEnabled ($a_mode)
 Is a particular mode enabled?
 isLogEnabled ()
 setModeDependencies ()
 Sets modes by considering mode dependencies; some modes require other modes to be activated.
 validate ()
 Performs the validation for each enabled mode.
 findMissingObjects ()
 Search database for all object entries with missing reference and/or tree entry and stores result in $this->missing_objects.
 findInvalidRolefolders ()
 Search database for all rolefolder object entries with missing reference entry.
 findInvalidRBACEntries ()
 Search database for all role entries that are linked to invalid ref_ids.
 getMissingObjects ()
 Gets all object entries with missing reference and/or tree entry.
 findInvalidReferences ()
 Search database for all reference entries that are not linked with a valid object id and stores result in $this->invalid_references.
 getInvalidReferences ()
 Gets all reference entries that are not linked with a valid object id.
 findInvalidChilds ()
 Search database for all tree entries without any link to a valid object and stores result in $this->invalid_childs.
 getInvalidChilds ()
 Gets all tree entries without any link to a valid object.
 findUnboundObjects ()
 Search database for all tree entries having no valid parent (=> no valid path to root node) and stores result in $this->unbound_objects Result does not contain childs that are marked as deleted! Deleted childs have a negative number.
 findDeletedObjects ()
 Search database for all tree entries having no valid parent (=> no valid path to root node) and stores result in $this->unbound_objects Result also contains childs that are marked as deleted! Deleted childs has a negative number in ["deleted"] otherwise NULL.
 getUnboundObjects ()
 Gets all tree entries having no valid parent (=> no valid path to root node) Returns an array with child => actual entry with broken uplink to its parent parent => parent of child that does not exist grandparent => grandparent of child (where path to root node continues) deleted => containing a negative number (= parent in trash) or NULL (parent does not exist at all)
 getDeletedObjects ()
 Gets all object in trash.
 getInvalidRolefolders ()
 Gets invalid rolefolders (same as missing objects)
 removeInvalidReferences ($a_invalid_refs=NULL)
 Removes all reference entries that are linked with invalid object IDs.
 removeInvalidChilds ($a_invalid_childs=NULL)
 Removes all tree entries without any link to a valid object.
 removeInvalidRolefolders ($a_invalid_rolefolders=NULL)
 Removes invalid rolefolders.
 restoreMissingObjects ($a_missing_objects=NULL)
 Restores missing reference and/or tree entry for all objects found by this::getMissingObjects() Restored object are placed in RecoveryFolder.
 restoreReference ($a_obj_id)
 restore a reference for an object Creates a new reference entry in DB table object_reference for $a_obj_id
 restoreUnboundObjects ($a_unbound_objects=NULL)
 Restore objects (and their subobjects) to RecoveryFolder that are valid but not linked correctly in the hierarchy because they point to an invalid parent_id.
 restoreTrash ($a_deleted_objects=NULL)
 Restore all objects in trash to RecoveryFolder NOTE: All objects will be restored to top of RecoveryFolder regardless of existing hierarchical structure!
 restoreDeletedObjects ($a_nodes)
 Restore deleted objects (and their subobjects) to RecoveryFolder.
 restoreSubTrees ($a_nodes)
 Restore objects (and their subobjects) to RecoveryFolder.
 purgeTrash ($a_nodes=NULL)
 Removes all objects in trash from system.
 purgeUnboundObjects ($a_nodes=NULL)
 Removes all invalid objects from system.
 purgeMissingObjects ($a_nodes=NULL)
 Removes all missing objects from system.
 purgeObjects ($a_nodes)
 removes objects from system
 initGapsInTree ()
 Initializes gaps in lft/rgt values of a tree.
 handleErr ($error)
 Callback function handles PEAR_error and outputs detailed infos about error TODO: implement that in global errorhandler of ILIAS (via templates)
 writeScanLogArray ($a_arr)
 writeScanLogLine ($a_msg)
 hasScanLog ()
 Quickly determine if there is a scan log.
 deleteScanLog ()
 Delete scan log.
 readScanLog ()
 get_last_scan ($a_scan_log)
 checkTreeStructure ($a_startnode=null)
 dumpTree ()
 Dumps the Tree structure into the scan log.

Data Fields

 $rbac_object_types = NULL
 $object_types_exclude
 $mode
 $invalid_references = array()
 $invalid_childs = array()
 $missing_objects = array()
 $unbound_objects = array()
 $deleted_objects = array()
 $invalid_rolefolders = array()
 $invalid_objects = array()
 $logging = false
 $scan_log
 $scan_log_file = "scanlog.log"
 $scan_log_separator = "<!-- scan log start -->"

Protected Member Functions

 isMediaFolder ($a_obj_id)
 isExcludedFromRecovery ($a_type, $a_obj_id)
 Check if type is excluded from recovery.

Protected Attributes

 $media_pool_ids = null

Detailed Description

ILIAS Data Validator & Recovery Tool.

Author
Sascha Hofmann shofm.nosp@m.ann@.nosp@m.datab.nosp@m.ay.d.nosp@m.e
Version
Id:
class.ilValidator.php 27208 2011-01-06 10:37:44Z smeyer

Definition at line 31 of file class.ilValidator.php.

Member Function Documentation

ilValidator::checkTreeStructure (   $a_startnode = null)

Definition at line 2040 of file class.ilValidator.php.

References writeScanLogLine().

Referenced by validate().

{
global $tree;
$this->writeScanLogLine("\nchecking tree structure is disabled");
return false;
}

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ilValidator::deleteScanLog ( )

Delete scan log.

Definition at line 2004 of file class.ilValidator.php.

Referenced by ilValidator().

{
@unlink(CLIENT_DATA_DIR."/".$this->scan_log_file);
}

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ilValidator::dumpTree ( )

Dumps the Tree structure into the scan log.

public

Returns
number of errors found while dumping tree

Definition at line 2055 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, isMediaFolder(), and writeScanLogLine().

Referenced by validate().

{
$this->writeScanLogLine("BEGIN dumpTree:");
// collect nodes with duplicate child Id's
// (We use this, to mark these nodes later in the output as being
// erroneous.).
$q = 'SELECT child FROM tree GROUP BY child HAVING COUNT(*) > 1';
$r = $this->db->query($q);
$duplicateNodes = array();
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$duplicateNodes[] = $row->child;
}
// dump tree
$q = "SELECT tree.*,ref.ref_id,ref.obj_id AS refobj_id,ref.deleted,dat.*,usr.login "
."FROM tree "
."RIGHT JOIN object_reference AS ref ON tree.child = ref.ref_id "
."RIGHT JOIN object_data AS dat ON ref.obj_id = dat.obj_id "
."LEFT JOIN usr_data AS usr ON usr.usr_id = dat.owner "
."ORDER BY tree, lft, type, title";
$r = $this->db->query($q);
$this->writeScanLogLine(
'<table><tr>'
.'<td>tree, child, parent, lft, rgt, depth</td>'
.'<td>ref_id, ref.obj_id, deleted</td>'
.'<td>obj_id, type, owner, title</td>'
.'</tr>'
);
// We use a stack to represent the path to the current node.
// This allows us to do analyze the tree structure without having
// to implement a recursive algorithm.
$stack = array();
$error_count = 0;
$repository_tree_count = 0;
$trash_trees_count = 0;
$other_trees_count = 0;
$not_in_tree_count = 0;
// The previous number is used for gap checking
$previousNumber = 0;
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
// If there is no entry in table tree for the object, we display it here
if (is_null($row->child))
{
$not_in_tree_count++;
switch ($row->type) {
case 'crsg' :
case 'usr' :
case 'typ' :
case 'lng' :
case 'rolt' :
case 'role' :
case 'mob' :
case 'sty' :
// We are not interested in dumping these object types.
continue 2;
//break; NOT REACHED
case 'file' :
if (is_null($row->ref_id)) {
// File objects can be part of a learning module.
// In this case, they do not have a row in table object_reference.
// We are not interested in dumping these file objects.
continue 2;
} else {
// File objects which have a row in table object_reference, but
// none in table tree are an error.
$error_count++;
$isRowOkay = false;
$isParentOkay = false;
$isLftOkay = false;
$isRgtOkay = false;
$isDepthOkay = false;
}
break;
case 'fold':
// ignore folders on media pools
if($this->isMediaFolder($row->obj_id))
{
continue 2;
}
default :
$error_count++;
$isRowOkay = false;
$isParentOkay = false;
$isLftOkay = false;
$isRgtOkay = false;
$isDepthOkay = false;
break;
}
$this->writeScanLogLine(
'<tr>'
.'<td>'
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.$row->tree.', '
.$row->child.', '
.(($isParentOkay) ? '' : 'parent:<b>')
.$row->parent
.(($isParentOkay) ? '' : '</b>')
.', '
.(($isLftOkay) ? '' : 'lft:<b>')
.$row->lft
.(($isLftOkay) ? '' : '</b>')
.', '
.(($isRgtOkay) ? '' : 'rgt:<b>')
.$row->rgt
.(($isRgtOkay) ? '' : '</b>')
.', '
.(($isDepthOkay) ? '' : 'depth:<b>')
.$row->depth
.(($isDepthOkay) ? '' : '</b>')
.(($isRowOkay) ? '' : '</font>')
.'</td><td>'
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.(($isRefRefOkay && $isChildOkay) ? '' : 'ref.ref_id:<b>')
.$row->ref_id
.(($isRefRefOkay && $isChildOkay) ? '' : '</b>')
.', '
.(($isRefObjOkay) ? '' : 'ref.obj_id:<b>')
.$row->refobj_id
.(($isRefObjOkay) ? '' : '</b>')
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.(($row->deleted != '0000-00-00 00:00:00') ? ', '.$row->deleted : '')
.'</td><td>'
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.$indent
.$row->obj_id.', '
.$row->type.', '
.$row->login.', '
.$row->title
.(($isRowOkay) ? '' : ' <b>*ERROR*</b><font color=#ff0000>')
.'</td>'
.'</tr>'
);
continue;
}
// Update stack
// -------------------
$indent = "";
for ($i = 1; $i < $row->depth; $i++)
{
$indent .= ". ";
}
// Initialize the stack and the previous number if we are in a new tree
if (count($stack) == 0 || $stack[0]->tree != $row->tree)
{
$stack = array();
$previousNumber = $row->lft - 1;
$this->writeScanLogLine('<tr><td>&nbsp;</td></tr>');
}
// Pop old stack entries
while (count($stack) > 0 && $stack[count($stack) - 1]->rgt < $row->lft)
{
$popped = array_pop($stack);
// check for gap
$gap = $popped->rgt - $previousNumber - 1;
if ($gap > 0)
{
$poppedIndent = "";
for ($i = 1; $i < $popped->depth; $i++)
{
$poppedIndent .= ". ";
}
$this->writeScanLogLine(
'<tr>'
.'<td colspan=2><div align="right">'
.'<font color=#00cc00>*gap* for '.($gap/2).' nodes at end of&nbsp;</font>'
.'</div></td>'
.'<td>'
.'<font color=#00cc00>'
.$poppedIndent
.$popped->obj_id.', '
.$popped->type.', '
.$popped->login.', '
.$popped->title
.'</font>'
.'</td>'
.'</tr>'
);
}
$previousNumber = $popped->rgt;
unset($popped);
}
// Check row integrity
// -------------------
$isRowOkay = true;
// Check tree structure
$isChildOkay = true;
$isParentOkay = true;
$isLftOkay = true;
$isRgtOkay = true;
$isDepthOkay = true;
$isGap = false;
if (count($stack) > 0)
{
$parent = $stack[count($stack) - 1];
if ($parent->depth + 1 != $row->depth)
{
$isDepthOkay = false;
$isRowOkay = false;
}
if ($parent->child != $row->parent)
{
$isParentOkay = false;
$isRowOkay = false;
}
if ($parent->lft >= $row->lft)
{
$isLftOkay = false;
$isRowOkay = false;
}
if ($parent->rgt <= $row->rgt)
{
$isRgtOkay = false;
$isRowOkay = false;
}
}
// Check lft rgt
if ($row->lft >= $row->rgt)
{
$isLftOkay = false;
$isRgtOkay = false;
$isRowOkay = false;
}
if (in_array($row->child, $duplicateNodes))
{
$isChildOkay = false;
$isRowOkay = false;
}
// Check object reference
$isRefRefOkay = true;
$isRefObjOkay = true;
if ($row->ref_id == null)
{
$isRefRefOkay = false;
$isRowOkay = false;
}
if ($row->obj_id == null)
{
$isRefObjOkay = false;
$isRowOkay = false;
}
if (! $isRowOkay)
{
$error_count++;
}
// Check for gap between siblings,
// and eventually write a log line
$gap = $row->lft - $previousNumber - 1;
$previousNumber = $row->lft;
if ($gap > 0)
{
$this->writeScanLogLine(
'<tr>'
.'<td colspan=2><div align="right">'
.'<font color=#00cc00>*gap* for '.($gap/2).' nodes between&nbsp;</font>'
.'</div></td>'
.'<td>'
.'<font color=#00cc00>siblings</font>'
.'</td>'
.'</tr>'
);
}
// Write log line
// -------------------
$this->writeScanLogLine(
'<tr>'
.'<td>'
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.$row->tree.', '
.$row->child.', '
.(($isParentOkay) ? '' : 'parent:<b>')
.$row->parent
.(($isParentOkay) ? '' : '</b>')
.', '
.(($isLftOkay) ? '' : 'lft:<b>')
.$row->lft
.(($isLftOkay) ? '' : '</b>')
.', '
.(($isRgtOkay) ? '' : 'rgt:<b>')
.$row->rgt
.(($isRgtOkay) ? '' : '</b>')
.', '
.(($isDepthOkay) ? '' : 'depth:<b>')
.$row->depth
.(($isDepthOkay) ? '' : '</b>')
.(($isRowOkay) ? '' : '</font>')
.'</td><td>'
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.(($isRefRefOkay && $isChildOkay) ? '' : 'ref.ref_id:<b>')
.$row->ref_id
.(($isRefRefOkay && $isChildOkay) ? '' : '</b>')
.', '
.(($isRefObjOkay) ? '' : 'ref.obj_id:<b>')
.$row->refobj_id
.(($isRefObjOkay) ? '' : '</b>')
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.(($row->tree < 0) ? ', '.$row->deleted : '')
.'</td><td>'
.(($isRowOkay) ? '' : '<font color=#ff0000>')
.$indent
.$row->obj_id.', '
.$row->type.', '
.$row->login.', '
.$row->title
.(($isRowOkay) ? '' : ' <b>*ERROR*</b><font color=#ff0000>')
.'</td>'
.'</tr>'
);
// Update stack
// -------------------
// Push node on stack
$stack[] = $row;
// Count nodes
// -----------------
if ($row->tree == 1)
{
$repository_tree_count++;
}
else if ($row->tree < 0)
{
$trash_trees_count++;
}
else
{
$other_trees_count++;
}
}
//
// Pop remaining stack entries
while (count($stack) > 0)
{
$popped = array_pop($stack);
// check for gap
$gap = $popped->rgt - $previousNumber - 1;
if ($gap > 0)
{
$poppedIndent = "";
for ($i = 1; $i < $popped->depth; $i++)
{
$poppedIndent .= ". ";
}
$this->writeScanLogLine(
'<tr>'
.'<td colspan=2><div align="right">'
.'<font color=#00cc00>*gap* for '.($gap/2).' nodes at end of&nbsp;</font>'
.'</div></td>'
.'<td>'
.'<font color=#00cc00>'
.$poppedIndent
.$popped->obj_id.', '
.$popped->type.', '
.$popped->login.', '
.$popped->title
.'</font>'
.'</td>'
.'</tr>'
);
}
$previousNumber = $popped->rgt;
unset($popped);
}
//
$this->writeScanLogLine("</table>");
if ($error_count > 0)
{
$this->writeScanLogLine('<font color=#ff0000>'.$error_count.' errors found while dumping tree.</font>');
}
else
{
$this->writeScanLogLine('No errors found while dumping tree.');
}
$this->writeScanLogLine("$repository_tree_count nodes in repository tree");
$this->writeScanLogLine("$trash_trees_count nodes in trash trees");
$this->writeScanLogLine("$other_trees_count nodes in other trees");
$this->writeScanLogLine("$not_in_tree_count nodes are not in a tree");
$this->writeScanLogLine("END dumpTree");
return $error_count;
}

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ilValidator::findDeletedObjects ( )

Search database for all tree entries having no valid parent (=> no valid path to root node) and stores result in $this->unbound_objects Result also contains childs that are marked as deleted! Deleted childs has a negative number in ["deleted"] otherwise NULL.

public

Returns
boolean false if analyze mode disabled or nothing found
See Also
this::getUnboundObjects()
this::restoreUnboundObjects()

Definition at line 992 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, writeScanLogArray(), and writeScanLogLine().

Referenced by validate().

{
// check mode: analyze
if ($this->mode["scan"] !== true)
{
return false;
}
// init
$this->deleted_objects = array();
$this->writeScanLogLine("\nfindDeletedObjects:");
// Delete objects, start with the oldest objects first
$q = "SELECT object_data.*,tree.tree,tree.child,tree.parent,deleted,UNIX_TIMESTAMP(deleted) as deleted_timestamp ".
"FROM object_data ".
"LEFT JOIN object_reference ON object_data.obj_id=object_reference.obj_id ".
"LEFT JOIN tree ON tree.child=object_reference.ref_id ".
" WHERE tree !=1 ".
" ORDER BY deleted";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->deleted_objects[] = array(
"child" => $row->child,
"parent" => $row->parent,
"tree" => $row->tree,
"type" => $row->type,
"title" => $row->title,
"desc" => $row->description,
"owner" => $row->owner,
"deleted" => $row->deleted,
"deleted_timestamp" => $row->deleted_timestamp,
"create_date" => $row->create_date,
"last_update" => $row->last_update
);
}
if (count($this->deleted_objects) > 0)
{
$this->writeScanLogArray(array(array_keys($this->deleted_objects[0])));
$this->writeScanLogArray($this->deleted_objects);
return true;
}
$this->writeScanLogLine("none");
return false;
}

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ilValidator::findInvalidChilds ( )

Search database for all tree entries without any link to a valid object and stores result in $this->invalid_childs.

public

Returns
boolean false if analyze mode disabled or nothing found
See Also
this::getInvalidChilds()
this::removeInvalidChilds()

Definition at line 873 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, writeScanLogArray(), and writeScanLogLine().

Referenced by purgeObjects(), restoreSubTrees(), and validate().

{
// check mode: analyze
if ($this->mode["scan"] !== true)
{
return false;
}
// init
$this->invalid_childs = array();
$this->writeScanLogLine("\nfindInvalidChilds:");
$q = "SELECT tree.*,object_reference.ref_id FROM tree ".
"LEFT JOIN object_reference ON tree.child = object_reference.ref_id ".
"LEFT JOIN object_data ON object_reference.obj_id = object_data.obj_id ".
"WHERE object_reference.ref_id IS NULL or object_data.obj_id IS NULL";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->invalid_childs[] = array(
"child" => $row->child,
"ref_id" => $row->ref_id,
"msg" => "No object found"
);
}
if (count($this->invalid_childs) > 0)
{
$this->writeScanLogLine("child\t\tref_id");
$this->writeScanLogArray($this->invalid_childs);
return true;
}
$this->writeScanLogLine("none");
return false;
}

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ilValidator::findInvalidRBACEntries ( )

Search database for all role entries that are linked to invalid ref_ids.

public

Returns
boolean false if analyze mode disabled or nothing found
See Also
this::getInvalidRBACEntries()
this::removeInvalidRBACEntries()

Definition at line 714 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, writeScanLogArray(), and writeScanLogLine().

{
global $ilDB;
// check mode: analyze
if ($this->mode["scan"] !== true)
{
return false;
}
// init
$this->invalid_rbac_entries = array();
$this->writeScanLogLine("\nfindInvalidRBACEntries:");
$q = "SELECT object_data.*, ref_id FROM object_data ".
"LEFT JOIN object_reference ON object_data.obj_id = object_reference.obj_id ".
"LEFT JOIN tree ON object_reference.ref_id = tree.child ".
"WHERE (object_reference.obj_id IS NULL OR tree.child IS NULL) ".
"AND object_data.type='rolf'";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->invalid_rolefolders[] = array(
"obj_id" => $row->obj_id,
"type" => $row->type,
"ref_id" => $row->ref_id,
"child" => $row->child,
"title" => $row->title,
"desc" => $row->description,
"owner" => $row->owner,
"create_date" => $row->create_date,
"last_update" => $row->last_update
);
}
// find rolfs within RECOVERY FOLDER
$q = "SELECT object_data.*, ref_id FROM object_data ".
"LEFT JOIN object_reference ON object_data.obj_id = object_reference.obj_id ".
"LEFT JOIN tree ON object_reference.ref_id = tree.child ".
"WHERE object_reference.ref_id =".$ilDB->quote(RECOVERY_FOLDER_ID)." ".
"AND object_data.type='rolf'";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->invalid_rolefolders[] = array(
"obj_id" => $row->obj_id,
"type" => $row->type,
"ref_id" => $row->ref_id,
"child" => $row->child,
"title" => $row->title,
"desc" => $row->description,
"owner" => $row->owner,
"create_date" => $row->create_date,
"last_update" => $row->last_update
);
}
if (count($this->invalid_rolefolders) > 0)
{
$this->writeScanLogLine("obj_id\ttype\tref_id\tchild\ttitle\tdesc\towner\tcreate_date\tlast_update");
$this->writeScanLogArray($this->invalid_rolefolders);
return true;
}
$this->writeScanLogLine("none");
return false;
}

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ilValidator::findInvalidReferences ( )

Search database for all reference entries that are not linked with a valid object id and stores result in $this->invalid_references.

public

Returns
boolean false if analyze mode disabled or nothing found
See Also
this::getInvalidReferences()
this::removeInvalidReferences()

Definition at line 812 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, writeScanLogArray(), and writeScanLogLine().

Referenced by validate().

{
// check mode: analyze
if ($this->mode["scan"] !== true)
{
return false;
}
// init
$this->invalid_references = array();
$this->writeScanLogLine("\nfindInvalidReferences:");
$q = "SELECT object_reference.* FROM object_reference ".
"LEFT JOIN object_data ON object_data.obj_id = object_reference.obj_id ".
"WHERE object_data.obj_id IS NULL ".
"OR object_data.type NOT IN (".$this->rbac_object_types.")";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->invalid_references[] = array(
"ref_id" => $row->ref_id,
"obj_id" => $row->obj_id,
"msg" => "Object does not exist."
);
}
if (count($this->invalid_references) > 0)
{
$this->writeScanLogLine("ref_id\t\tobj_id");
$this->writeScanLogArray($this->invalid_references);
return true;
}
$this->writeScanLogLine("none");
return false;
}

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ilValidator::findInvalidRolefolders ( )

Search database for all rolefolder object entries with missing reference entry.

Furthermore gets all rolefolders that are placed accidently in RECOVERY_FOLDER from earlier versions of System check. Result is stored in $this->invalid_rolefolders

public

Returns
boolean false if analyze mode disabled or nothing found
See Also
this::getInvalidRolefolders()
this::removeInvalidRolefolders()

Definition at line 633 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, writeScanLogArray(), and writeScanLogLine().

Referenced by validate().

{
global $ilDB;
// check mode: analyze
if ($this->mode["scan"] !== true)
{
return false;
}
// init
$this->invalid_rolefolders = array();
$this->writeScanLogLine("\nfindInvalidRolefolders:");
// find rolfs without reference/tree entry
$q = "SELECT object_data.*, ref_id FROM object_data ".
"LEFT JOIN object_reference ON object_data.obj_id = object_reference.obj_id ".
"LEFT JOIN tree ON object_reference.ref_id = tree.child ".
"WHERE (object_reference.obj_id IS NULL OR tree.child IS NULL) ".
"AND object_data.type='rolf'";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->invalid_rolefolders[] = array(
"obj_id" => $row->obj_id,
"type" => $row->type,
"ref_id" => $row->ref_id,
"child" => $row->child,
"title" => $row->title,
"desc" => $row->description,
"owner" => $row->owner,
"create_date" => $row->create_date,
"last_update" => $row->last_update
);
}
// find rolfs within RECOVERY FOLDER
$q = "SELECT object_data.*, ref_id FROM object_data ".
"LEFT JOIN object_reference ON object_data.obj_id = object_reference.obj_id ".
"LEFT JOIN tree ON object_reference.ref_id = tree.child ".
"WHERE object_reference.ref_id = ".$ilDB->quote(RECOVERY_FOLDER_ID)." ".
"AND object_data.type='rolf'";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->invalid_rolefolders[] = array(
"obj_id" => $row->obj_id,
"type" => $row->type,
"ref_id" => $row->ref_id,
"child" => $row->child,
"title" => $row->title,
"desc" => $row->description,
"owner" => $row->owner,
"create_date" => $row->create_date,
"last_update" => $row->last_update
);
}
if (count($this->invalid_rolefolders) > 0)
{
$this->writeScanLogLine("obj_id\ttype\tref_id\tchild\ttitle\tdesc\towner\tcreate_date\tlast_update");
$this->writeScanLogArray($this->invalid_rolefolders);
return true;
}
$this->writeScanLogLine("none");
return false;
}

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ilValidator::findMissingObjects ( )

Search database for all object entries with missing reference and/or tree entry and stores result in $this->missing_objects.

public

Returns
boolean false if analyze mode disabled or nothing found
See Also
this::getMissingObjects()
this::restoreMissingObjects()

Definition at line 564 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, isExcludedFromRecovery(), writeScanLogArray(), and writeScanLogLine().

Referenced by validate().

{
// check mode: analyze
if ($this->mode["scan"] !== true)
{
return false;
}
// init
$this->missing_objects = array();
$this->writeScanLogLine("\nfindMissingObjects:");
// Repair missing objects.
// We only repair file objects which have an entry in table object_reference.
// XXX - We should check all references to file objects which don't
// have an object_reference. If we can't find any reference to such
// a file object, we should repair it too!
$q = "SELECT object_data.*, ref_id FROM object_data ".
"LEFT JOIN object_reference ON object_data.obj_id = object_reference.obj_id ".
"LEFT JOIN tree ON object_reference.ref_id = tree.child ".
"WHERE tree.child IS NULL ".
"AND (object_reference.obj_id IS NOT NULL ".
" OR object_data.type <> 'file' AND ".
" object_data.type IN (".$this->rbac_object_types.") ".
")";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
#if (!in_array($row->type,$this->object_types_exclude))
if(!$this->isExcludedFromRecovery($row->type,$row->obj_id))
{
$this->missing_objects[] = array(
"obj_id" => $row->obj_id,
"type" => $row->type,
"ref_id" => $row->ref_id,
"child" => $row->child,
"title" => $row->title,
"desc" => $row->description,
"owner" => $row->owner,
"create_date" => $row->create_date,
"last_update" => $row->last_update
);
}
}
if (count($this->missing_objects) > 0)
{
$this->writeScanLogLine("obj_id\ttype\tref_id\tchild\ttitle\tdesc\towner\tcreate_date\tlast_update");
$this->writeScanLogArray($this->missing_objects);
return true;
}
$this->writeScanLogLine("none");
return false;
}

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ilValidator::findUnboundObjects ( )

Search database for all tree entries having no valid parent (=> no valid path to root node) and stores result in $this->unbound_objects Result does not contain childs that are marked as deleted! Deleted childs have a negative number.

public

Returns
boolean false if analyze mode disabled or nothing found
See Also
this::getUnboundObjects()
this::restoreUnboundObjects()

Definition at line 936 of file class.ilValidator.php.

References DB_FETCHMODE_OBJECT, writeScanLogArray(), and writeScanLogLine().

Referenced by validate().

{
// check mode: analyze
if ($this->mode["scan"] !== true)
{
return false;
}
// init
$this->unbound_objects = array();
$this->writeScanLogLine("\nfindUnboundObjects:");
$q = "SELECT T1.tree,T1.child,T1.parent,".
"T2.tree AS deleted,T2.parent AS grandparent ".
"FROM tree AS T1 ".
"LEFT JOIN tree AS T2 ON T2.child=T1.parent ".
"WHERE (T2.tree!=1 OR T2.tree IS NULL) AND T1.parent!=0";
$r = $this->db->query($q);
while ($row = $r->fetchRow(DB_FETCHMODE_OBJECT))
{
// exclude deleted nodes
if ($row->deleted === NULL)
{
$this->unbound_objects[] = array(
"child" => $row->child,
"parent" => $row->parent,
"tree" => $row->tree,
"msg" => "No valid parent node found"
);
}
}
if (count($this->unbound_objects) > 0)
{
$this->writeScanLogLine("child\t\tparent\ttree");
$this->writeScanLogArray($this->unbound_objects);
return true;
}
$this->writeScanLogLine("none");
return false;
}

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ilValidator::get_last_scan (   $a_scan_log)

Definition at line 2028 of file class.ilValidator.php.

Referenced by readScanLog().

{
$logs = array_keys($a_scan_log,$this->scan_log_separator."\n");
if (count($logs) > 0)
{
return array_slice($a_scan_log,array_pop($logs)+2);
}
return false;
}

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ilValidator::getDeletedObjects ( )

Gets all object in trash.

public

Returns
array objects in trash

Definition at line 1067 of file class.ilValidator.php.

References $deleted_objects.

Referenced by validate().

{
return $this->deleted_objects;
}

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ilValidator::getInvalidChilds ( )

Gets all tree entries without any link to a valid object.

public

Returns
array
See Also
this::findInvalidChilds()
this::removeInvalidChilds()

Definition at line 920 of file class.ilValidator.php.

References $invalid_childs.

Referenced by validate().

{
return $this->invalid_childs;
}

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ilValidator::getInvalidReferences ( )

Gets all reference entries that are not linked with a valid object id.

public

Returns
array
See Also
this::findInvalidReferences()
this::removeInvalidReferences()

Definition at line 859 of file class.ilValidator.php.

References $invalid_references.

Referenced by validate().

{
return $this->invalid_references;
}

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ilValidator::getInvalidRolefolders ( )

Gets invalid rolefolders (same as missing objects)

public

Returns
array
See Also
this::findMissingObjects()
this::removeInvalidRolefolders()

Definition at line 1080 of file class.ilValidator.php.

References $invalid_rolefolders.

Referenced by validate().

{
return $this->invalid_rolefolders;
}

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ilValidator::getMissingObjects ( )

Gets all object entries with missing reference and/or tree entry.

Returns array with obj_id => actual object entry with missing reference or tree type => symbolic name of object type ref_id => reference entry of object (or NULL if missing) child => always NULL (only for debugging and verification)

public

Returns
array
See Also
this::findMissingObjects()
this::restoreMissingObjects()

Definition at line 798 of file class.ilValidator.php.

References $missing_objects.

Referenced by validate().

{
return $this->missing_objects;
}

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ilValidator::getUnboundObjects ( )

Gets all tree entries having no valid parent (=> no valid path to root node) Returns an array with child => actual entry with broken uplink to its parent parent => parent of child that does not exist grandparent => grandparent of child (where path to root node continues) deleted => containing a negative number (= parent in trash) or NULL (parent does not exist at all)

public

Returns
array
See Also
this::findUnboundObjects()
this::restoreUnboundObjects()

Definition at line 1056 of file class.ilValidator.php.

References $unbound_objects.

Referenced by validate().

{
return $this->unbound_objects;
}

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ilValidator::handleErr (   $error)

Callback function handles PEAR_error and outputs detailed infos about error TODO: implement that in global errorhandler of ILIAS (via templates)

private

Parameters
objectPEAR_error
See Also
PEAR::PEAR_error()

Definition at line 1904 of file class.ilValidator.php.

References exit.

{
$call_loc = $error->backtrace[count($error->backtrace)-1];
$num_args = count($call_loc["args"]);
if ($num_args > 0)
{
foreach ($call_loc["args"] as $arg)
{
$type = gettype($arg);
switch ($type)
{
case "string":
$value = strlen($arg);
break;
case "array":
$value = count($arg);
break;
case "object":
$value = get_class($arg);
break;
case "boolean":
$value = ($arg) ? "true" : "false";
break;
default:
$value = $arg;
break;
}
$arg_list[] = array(
"type" => $type,
"value" => "(".$value.")"
);
}
foreach ($arg_list as $arg)
{
$arg_str .= implode("",$arg)." ";
}
}
$err_msg = "<br/><b>".$error->getCode().":</b> ".$error->getMessage()." in ".$call_loc["class"].$call_loc["type"].$call_loc["function"]."()".
"<br/>Called from: ".basename($call_loc["file"])." , line ".$call_loc["line"].
"<br/>Passed parameters: [".$num_args."] ".$arg_str."<br/>";
printf($err_msg);
if ($error->getUserInfo())
{
printf("<br/>Parameter details:");
echo "<pre>";
var_dump($call_loc["args"]);
echo "</pre>";
}
if ($error->getCode() == FATAL)
{
exit();
}
}
ilValidator::hasScanLog ( )

Quickly determine if there is a scan log.

Definition at line 1995 of file class.ilValidator.php.

Referenced by readScanLog().

{
// file check
return is_file(CLIENT_DATA_DIR."/".$this->scan_log_file);
}

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ilValidator::ilValidator (   $a_log = false)

Constructor.

public

Parameters
integermode

Definition at line 136 of file class.ilValidator.php.

References deleteScanLog(), and writeScanLogLine().

{
global $objDefinition, $ilDB;
$this->PEAR();
$this->db =& $ilDB;
$this->rbac_object_types = "'".implode("','",$objDefinition->getAllRBACObjects())."'";
$this->setErrorHandling(PEAR_ERROR_CALLBACK,array(&$this, 'handleErr'));
if ($a_log === true)
{
$this->logging = true;
// should be available thru inc.header.php
// TODO: move log functionality to new class ilScanLog
include_once "./Services/Logging/classes/class.ilLog.php";
// Delete old scan log
$this->deleteScanLog();
// create scan log
$this->scan_log = new ilLog(CLIENT_DATA_DIR,"scanlog.log");
$this->scan_log->setLogFormat("");
$this->writeScanLogLine($this->scan_log_separator);
$this->writeScanLogLine("\n[Systemscan from ".date("y-m-d H:i]"));
}
}

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ilValidator::initGapsInTree ( )

Initializes gaps in lft/rgt values of a tree. 

Depending on the value of the gap property of the tree, this function 
either closes all gaps in the tree, or equally distributes gaps all over

the tree. 

Wrapper for ilTree::renumber()

@access     public
@return     boolean false if clean mode disabled
@see                ilTree::renumber()

Definition at line 1873 of file class.ilValidator.php.

References $ilLog, and writeScanLogLine().

Referenced by validate().

{
global $tree,$ilLog;
$message = sprintf('%s::initGapsInTree(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// check mode: clean
if ($this->mode["clean"] !== true)
{
return false;
}
$this->writeScanLogLine("\nrenumberTree:");
$tree->renumber(ROOT_FOLDER_ID);
$this->writeScanLogLine("done");
return true;
}

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ilValidator::isExcludedFromRecovery (   $a_type,
  $a_obj_id 
)
protected

Check if type is excluded from recovery.

Parameters
string$a_type
int$a_obj_id
Returns
bool

Definition at line 2485 of file class.ilValidator.php.

References isMediaFolder().

Referenced by findMissingObjects(), and restoreMissingObjects().

{
switch($a_type)
{
case 'fold':
if(!$this->isMediaFolder($a_obj_id))
{
return false;
}
}
return in_array($a_type,$this->object_types_exclude);
}

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ilValidator::isLogEnabled ( )

Definition at line 221 of file class.ilValidator.php.

References $logging.

Referenced by writeScanLogArray(), and writeScanLogLine().

{
return $this->logging;
}

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ilValidator::isMediaFolder (   $a_obj_id)
protected

Definition at line 2461 of file class.ilValidator.php.

References $res, and DB_FETCHMODE_OBJECT.

Referenced by dumpTree(), and isExcludedFromRecovery().

{
global $ilDB;
if(!is_array($this->media_pool_ids))
{
$this->media_pool_ids = array();
$query = "SELECT child FROM mep_tree ";
$res = $ilDB->query($query);
while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
{
$this->media_pool_ids[] = $row->child;
}
}
return in_array($a_obj_id,$this->media_pool_ids) ? true : false;
}

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ilValidator::isModeEnabled (   $a_mode)

Is a particular mode enabled?

public

Parameters
stringmode to query
Returns
boolean
See Also
this::setMode()

Definition at line 210 of file class.ilValidator.php.

Referenced by validate().

{
if (!in_array($a_mode,array_keys($this->mode)))
{
$this->throwError(VALIDATER_UNKNOWN_MODE, WARNING, DEBUG);
return false;
}
return $this->mode[$a_mode];
}

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ilValidator::purgeMissingObjects (   $a_nodes = NULL)

Removes all missing objects from system.

public

Parameters
arraylist of nodes to delete
Returns
boolean true on success
See Also
this::purgeObjects()
this::findMissingObjects()

Definition at line 1735 of file class.ilValidator.php.

References $ilLog, $missing_objects, purgeObjects(), and writeScanLogLine().

Referenced by validate().

{
global $ilLog;
// check mode: purge
if ($this->mode["purge"] !== true)
{
return false;
}
$this->writeScanLogLine("\npurgeMissingObjects:");
if ($a_nodes === NULL and isset($this->missing_objects))
{
$a_nodes = $this->missing_objects;
}
$message = sprintf('%s::purgeMissingObjects(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// start purge process
return $this->purgeObjects($a_nodes);
}

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ilValidator::purgeObjects (   $a_nodes)

removes objects from system

private

Parameters
arraylist of objects
Returns
boolean

Definition at line 1767 of file class.ilValidator.php.

References $ilLog, $ref_id, ilTree\_removeEntry(), findInvalidChilds(), removeInvalidChilds(), and writeScanLogLine().

Referenced by purgeMissingObjects(), purgeTrash(), and purgeUnboundObjects().

{
global $ilias,$ilLog;
// Get purge limits
$count_limit = $ilias->account->getPref("systemcheck_count_limit");
if (! is_numeric($count_limit) || $count_limit < 0)
{
$count_limit = count($a_nodes);
}
$timestamp_limit = time();
$age_limit = $ilias->account->getPref("systemcheck_age_limit");
if (is_numeric($age_limit) && $age_limit > 0)
{
$timestamp_limit -= $age_limit * 60 * 60 * 24;
}
else
{
$timestamp_limit = 0;
}
$type_limit = $ilias->account->getPref("systemcheck_type_limit");
if ($type_limit)
{
$type_limit = trim($type_limit);
if (strlen($type_limit) == 0)
{
$type_limit = null;
}
}
// handle wrong input
if (!is_array($a_nodes))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
// start delete process
$this->writeScanLogLine("action\tref_id\tobj_id\ttype\telapsed\ttitle");
$count = 0;
foreach ($a_nodes as $node)
{
if ($type_limit && $node['type'] != $type_limit)
{
$this->writeScanLogLine("skip\t".
$node['child']."\t\t".$node['type']."\t\t".$node['title']
);
continue;
}
$count++;
if ($count > $count_limit)
{
$this->writeScanLogLine("Stopped purging after ".($count - 1)." objects, because count limit was reached: ".$count_limit);
break;
}
if ($node["deleted_timestamp"] > $timestamp_limit)
{
$this->writeScanLogLine("Stopped purging after ".($count - 1)." objects, because timestamp limit was reached: ".date("c", $timestamp_limit));
break;
}
$ref_id = ($node["child"]) ? $node["child"] : $node["ref_id"];
$node_obj =& $ilias->obj_factory->getInstanceByRefId($ref_id,false);
if ($node_obj === false)
{
$this->invalid_objects[] = $node;
continue;
}
$message = sprintf('%s::purgeObjects(): Removing object (id:%s ref:%s)',
get_class($this),
$ref_id,
$node_obj->getId());
$ilLog->write($message,$ilLog->WARNING);
$startTime = microtime(true);
$node_obj->delete();
ilTree::_removeEntry($node["tree"],$ref_id);
$endTime = microtime(true);
$this->writeScanLogLine("purged\t".$ref_id."\t".$node_obj->getId().
"\t".$node['type']."\t".round($endTime-$startTime,1)."\t".$node['title']);
}
$this->findInvalidChilds();
$this->removeInvalidChilds();
return true;
}

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ilValidator::purgeTrash (   $a_nodes = NULL)

Removes all objects in trash from system.

public

Parameters
arraylist of nodes to delete
Returns
boolean true on success
See Also
this::purgeObjects()
this::findDeletedObjects()

Definition at line 1667 of file class.ilValidator.php.

References $deleted_objects, $ilLog, purgeObjects(), and writeScanLogLine().

Referenced by validate().

{
global $ilLog;
// check mode: purge_trash
if ($this->mode["purge_trash"] !== true)
{
return false;
}
$this->writeScanLogLine("\npurgeTrash:");
if ($a_nodes === NULL and isset($this->deleted_objects))
{
$a_nodes = $this->deleted_objects;
}
$message = sprintf('%s::purgeTrash(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// start purge process
return $this->purgeObjects($a_nodes);
}

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ilValidator::purgeUnboundObjects (   $a_nodes = NULL)

Removes all invalid objects from system.

public

Parameters
arraylist of nodes to delete
Returns
boolean true on success
See Also
this::purgeObjects()
this::findUnboundObjects()

Definition at line 1701 of file class.ilValidator.php.

References $ilLog, $unbound_objects, purgeObjects(), and writeScanLogLine().

Referenced by validate().

{
global $ilLog;
// check mode: purge
if ($this->mode["purge"] !== true)
{
return false;
}
$this->writeScanLogLine("\npurgeUnboundObjects:");
if ($a_nodes === NULL and isset($this->unbound_objects))
{
$a_nodes = $this->unbound_objects;
}
$message = sprintf('%s::purgeUnboundObjects(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// start purge process
return $this->purgeObjects($a_nodes);
}

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ilValidator::readScanLog ( )

Definition at line 2009 of file class.ilValidator.php.

References $scan_log, get_last_scan(), and hasScanLog().

{
// file check
if (! $this->hasScanLog())
{
return false;
}
$scanfile =& file(CLIENT_DATA_DIR."/".$this->scan_log_file);
if (!$scan_log =& $this->get_last_scan($scanfile))
{
return false;
}
// Ensure that memory is freed
unset($scanfile);
return $scan_log;
}

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ilValidator::removeInvalidChilds (   $a_invalid_childs = NULL)

Removes all tree entries without any link to a valid object.

public

Parameters
arrayinvalid IDs in tree (optional)
Returns
boolean true if any ID were removed / false on error or clean mode disabled
See Also
this::getInvalidChilds()
this::findInvalidChilds()

Definition at line 1158 of file class.ilValidator.php.

References $ilLog, $invalid_childs, and writeScanLogLine().

Referenced by purgeObjects(), restoreSubTrees(), and validate().

{
global $ilLog;
// check mode: clean
if ($this->mode["clean"] !== true)
{
return false;
}
$this->writeScanLogLine("\nremoveInvalidChilds:");
if ($a_invalid_childs === NULL and isset($this->invalid_childs))
{
$a_invalid_childs =& $this->invalid_childs;
}
// handle wrong input
if (!is_array($a_invalid_childs))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
// no unbound childs found. do nothing
if (count($a_invalid_childs) == 0)
{
$this->writeScanLogLine("none");
return false;
}
/*******************
removal starts here
********************/
$message = sprintf('%s::removeInvalidChilds(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
foreach ($a_invalid_childs as $entry)
{
$q = "DELETE FROM tree WHERE child='".$entry["child"]."'";
$this->db->query($q);
$message = sprintf('%s::removeInvalidChilds(): Entry child=%s removed',
get_class($this),
$entry["child"]);
$ilLog->write($message,$ilLog->WARNING);
$this->writeScanLogLine("Entry ".$entry["child"]." removed");
}
return true;
}

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ilValidator::removeInvalidReferences (   $a_invalid_refs = NULL)

Removes all reference entries that are linked with invalid object IDs.

public

Parameters
arrayinvalid IDs in object_reference (optional)
Returns
boolean true if any ID were removed / false on error or clean mode disabled
See Also
this::getInvalidReferences()
this::findInvalidReferences()

Definition at line 1094 of file class.ilValidator.php.

References $ilLog, $invalid_references, and writeScanLogLine().

Referenced by validate().

{
global $ilLog;
// check mode: clean
if ($this->mode["clean"] !== true)
{
return false;
}
$this->writeScanLogLine("\nremoveInvalidReferences:");
if ($a_invalid_refs === NULL and isset($this->invalid_references))
{
$a_invalid_refs =& $this->invalid_references;
}
// handle wrong input
if (!is_array($a_invalid_refs))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
// no unbound references found. do nothing
if (count($a_invalid_refs) == 0)
{
$this->writeScanLogLine("none");
return false;
}
/*******************
removal starts here
********************/
$message = sprintf('%s::removeInvalidReferences(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
foreach ($a_invalid_refs as $entry)
{
$q = "DELETE FROM object_reference WHERE ref_id= ".$this->db->quote($entry["ref_id"]).
" AND obj_id = ".$this->db->quote($entry["obj_id"])." ";
$this->db->query($q);
$message = sprintf('%s::removeInvalidReferences(): Reference %s removed',
get_class($this),
$entry["ref_id"]);
$ilLog->write($message,$ilLog->WARNING);
$this->writeScanLogLine("Entry ".$entry["ref_id"]." removed");
}
return true;
}

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ilValidator::removeInvalidRolefolders (   $a_invalid_rolefolders = NULL)

Removes invalid rolefolders.

public

Parameters
arrayobj_ids of rolefolder objects (optional)
Returns
boolean true if any object were removed / false on error or remove mode disabled
See Also
this::getInvalidRolefolders()
this::findMissingObjects()

Definition at line 1223 of file class.ilValidator.php.

References $ilLog, $invalid_rolefolders, restoreReference(), and writeScanLogLine().

Referenced by validate().

{
global $ilias,$ilLog;
// check mode: clean
if ($this->mode["clean"] !== true)
{
return false;
}
$this->writeScanLogLine("\nremoveInvalidRolefolders:");
if ($a_invalid_rolefolders === NULL and isset($this->invalid_rolefolders))
{
$a_invalid_rolefolders = $this->invalid_rolefolders;
}
// handle wrong input
if (!is_array($a_invalid_rolefolders))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
// no invalid rolefolders found. do nothing
if (count($a_invalid_rolefolders) == 0)
{
$this->writeScanLogLine("none");
return false;
}
/*******************
removal starts here
********************/
$removed = false;
$message = sprintf('%s::removeInvalidRolefolders(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
foreach ($a_invalid_rolefolders as $rolf)
{
// restore ref_id in case of missing
if ($rolf["ref_id"] === NULL)
{
$rolf["ref_id"] = $this->restoreReference($rolf["obj_id"]);
$this->writeScanLogLine("Created missing reference '".$rolf["ref_id"]."' for rolefolder object '".$rolf["obj_id"]."'");
}
// now delete rolefolder
$obj_data =& $ilias->obj_factory->getInstanceByRefId($rolf["ref_id"]);
$obj_data->delete();
unset($obj_data);
$removed = true;
$this->writeScanLogLine("Removed invalid rolefolder '".$rolf["title"]."' (id=".$rolf["obj_id"].",ref=".$rolf["ref_id"].") from system");
}
return $removed;
}

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ilValidator::restoreDeletedObjects (   $a_nodes)

Restore deleted objects (and their subobjects) to RecoveryFolder.

private

Parameters
arraylist of nodes
Returns
boolean false on error or restore mode disabled
See Also
this::restoreTrash()

Definition at line 1503 of file class.ilValidator.php.

References $ilLog, and writeScanLogLine().

Referenced by restoreTrash().

{
global $tree,$rbacadmin,$ilias,$ilLog;
//vd($a_nodes);exit;
// handle wrong input
if (!is_array($a_nodes))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
// no invalid parents found. do nothing
if (count($a_nodes) == 0)
{
$this->writeScanLogLine("none");
return false;
}
$message = sprintf('%s::restoreDeletedObjects()): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// first delete all rolefolders
// don't save rolefolders, remove them
// TODO process ROLE_FOLDER_ID
foreach ($a_nodes as $key => $node)
{
if ($node["type"] == "rolf")
{
// delete old tree entries
$tree->deleteTree($node);
$obj_data =& $ilias->obj_factory->getInstanceByRefId($node["child"]);
$obj_data->delete();
unset($a_nodes[$key]);
}
}
// process move
foreach ($a_nodes as $node)
{
// delete old tree entries
$tree->deleteTree($node);
$rbacadmin->revokePermission($node["child"]);
$obj_data =& $ilias->obj_factory->getInstanceByRefId($node["child"]);
$obj_data->putInTree(RECOVERY_FOLDER_ID);
$obj_data->setPermissions(RECOVERY_FOLDER_ID);
$obj_data->initDefaultRoles();
}
return true;
}

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ilValidator::restoreMissingObjects (   $a_missing_objects = NULL)

Restores missing reference and/or tree entry for all objects found by this::getMissingObjects() Restored object are placed in RecoveryFolder.

public

Parameters
arrayobj_ids of missing objects (optional)
Returns
boolean true if any object were restored / false on error or restore mode disabled
See Also
this::getMissingObjects()
this::findMissingObjects()

Definition at line 1295 of file class.ilValidator.php.

References $ilLog, $missing_objects, isExcludedFromRecovery(), restoreReference(), and writeScanLogLine().

Referenced by validate().

{
global $ilias,$rbacadmin,$ilLog;
// check mode: restore
if ($this->mode["restore"] !== true)
{
return false;
}
$this->writeScanLogLine("\nrestoreMissingObjects:");
if ($a_missing_objects === NULL and isset($this->missing_objects))
{
$a_missing_objects = $this->missing_objects;
}
// handle wrong input
if (!is_array($a_missing_objects))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
// no missing objects found. do nothing
if (count($a_missing_objects) == 0)
{
$this->writeScanLogLine("none");
return false;
}
/*******************
restore starts here
********************/
$restored = false;
$message = sprintf('%s::restoreMissingObjects(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
foreach ($a_missing_objects as $missing_obj)
{
// restore ref_id in case of missing
if ($missing_obj["ref_id"] === NULL)
{
$missing_obj["ref_id"] = $this->restoreReference($missing_obj["obj_id"]);
$this->writeScanLogLine("Created missing reference '".$missing_obj["ref_id"]."' for object '".$missing_obj["obj_id"]."'");
}
// put in tree under RecoveryFolder if not on exclude list
#if (!in_array($missing_obj["type"],$this->object_types_exclude))
if(!$this->isExcludedFromRecovery($missing_obj['type'],$missing_obj['obj_id']))
{
$rbacadmin->revokePermission($missing_obj["ref_id"]);
$obj_data =& $ilias->obj_factory->getInstanceByRefId($missing_obj["ref_id"]);
$obj_data->putInTree(RECOVERY_FOLDER_ID);
$obj_data->setPermissions(RECOVERY_FOLDER_ID);
$obj_data->initDefaultRoles();
unset($obj_data);
//$tree->insertNode($missing_obj["ref_id"],RECOVERY_FOLDER_ID);
$restored = true;
$this->writeScanLogLine("Restored object '".$missing_obj["title"]."' (id=".$missing_obj["obj_id"].",ref=".$missing_obj["ref_id"].") in 'Restored objects folder'");
}
// TODO: process rolefolders
}
return $restored;
}

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ilValidator::restoreReference (   $a_obj_id)

restore a reference for an object Creates a new reference entry in DB table object_reference for $a_obj_id

Parameters
integerobj_id private
Returns
integer/boolean generated ref_id or false on error
See Also
this::restoreMissingObjects()

Definition at line 1376 of file class.ilValidator.php.

References $ilLog.

Referenced by removeInvalidRolefolders(), and restoreMissingObjects().

{
global $ilLog;
if (empty($a_obj_id))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
$q = "INSERT INTO object_reference (ref_id,obj_id) VALUES ('0',".$this->db->quote($a_obj_id)." )";
$this->db->query($q);
$message = sprintf('%s::restoreReference(): new reference %s for obj_id %s created',
get_class($this),
$this->db->getLastInsertId(),
$a_obj_id);
$ilLog->write($message,$ilLog->WARNING);
return $this->db->getLastInsertId();
}

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ilValidator::restoreSubTrees (   $a_nodes)

Restore objects (and their subobjects) to RecoveryFolder.

private

Parameters
arraylist of nodes
Returns
boolean false on error or restore mode disabled
See Also
this::restoreUnboundObjects()

Definition at line 1565 of file class.ilValidator.php.

References $ilLog, findInvalidChilds(), removeInvalidChilds(), and writeScanLogLine().

Referenced by restoreUnboundObjects().

{
global $tree,$rbacadmin,$ilias,$ilLog;
// handle wrong input
if (!is_array($a_nodes))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
// no invalid parents found. do nothing
if (count($a_nodes) == 0)
{
$this->writeScanLogLine("none");
return false;
}
/*******************
restore starts here
********************/
$subnodes = array();
$topnode = array();
$message = sprintf('%s::restoreSubTrees(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// process move subtree
foreach ($a_nodes as $node)
{
// get node data
$topnode = $tree->getNodeData($node["child"], $node['tree']);
// don't save rolefolders, remove them
// TODO process ROLE_FOLDER_ID
if ($topnode["type"] == "rolf")
{
$rolfObj = $ilias->obj_factory->getInstanceByRefId($topnode["child"]);
$rolfObj->delete();
unset($top_node);
unset($rolfObj);
continue;
}
// get subnodes of top nodes
$subnodes[$node["child"]] = $tree->getSubtree($topnode);
// delete old tree entries
$tree->deleteTree($topnode);
}
// now move all subtrees to new location
// TODO: this whole put in place again stuff needs revision. Permission settings get lost.
foreach ($subnodes as $key => $subnode)
{
// first paste top_node ...
$rbacadmin->revokePermission($key);
$obj_data =& $ilias->obj_factory->getInstanceByRefId($key);
$obj_data->putInTree(RECOVERY_FOLDER_ID);
$obj_data->setPermissions(RECOVERY_FOLDER_ID);
$obj_data->initDefaultRoles();
$this->writeScanLogLine("Object '".$obj_data->getId()."' restored.");
// ... remove top_node from list ...
array_shift($subnode);
// ... insert subtree of top_node if any subnodes exist
if (count($subnode) > 0)
{
foreach ($subnode as $node)
{
$rbacadmin->revokePermission($node["child"]);
$obj_data =& $ilias->obj_factory->getInstanceByRefId($node["child"]);
$obj_data->putInTree($node["parent"]);
$obj_data->setPermissions($node["parent"]);
$obj_data->initDefaultRoles();
$this->writeScanLogLine("Object '".$obj_data->getId()."' restored.");
}
}
}
// final clean up
$this->findInvalidChilds();
$this->removeInvalidChilds();
return true;
}

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ilValidator::restoreTrash (   $a_deleted_objects = NULL)

Restore all objects in trash to RecoveryFolder NOTE: All objects will be restored to top of RecoveryFolder regardless of existing hierarchical structure!

public

Parameters
arraylist of deleted childs (optional)
Returns
boolean false on error or restore mode disabled
See Also
this::findDeletedObjects()

Definition at line 1449 of file class.ilValidator.php.

References $deleted_objects, $ilLog, restoreDeletedObjects(), and writeScanLogLine().

Referenced by validate().

{
global $ilLog;
// check mode: restore
if ($this->mode["restore_trash"] !== true)
{
return false;
}
$this->writeScanLogLine("\nrestoreTrash:");
if ($a_deleted_objects === NULL and isset($this->deleted_objects))
{
$a_deleted_objects = $this->deleted_objects;
}
// handle wrong input
if (!is_array($a_deleted_objects))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
$message = sprintf('%s::restoreTrash(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// start restore process
$restored = $this->restoreDeletedObjects($a_deleted_objects);
if ($restored)
{
$q = "DELETE FROM tree WHERE tree!=1";
$this->db->query($q);
$message = sprintf('%s::restoreTrash(): Removed all trees with tree id <> 1',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
$this->writeScanLogLine("Old tree entries removed");
}
return $restored;
}

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ilValidator::restoreUnboundObjects (   $a_unbound_objects = NULL)

Restore objects (and their subobjects) to RecoveryFolder that are valid but not linked correctly in the hierarchy because they point to an invalid parent_id.

public

Parameters
arraylist of childs with invalid parents (optional)
Returns
boolean false on error or restore mode disabled
See Also
this::findUnboundObjects()
this::restoreSubTrees()

Definition at line 1408 of file class.ilValidator.php.

References $ilLog, $unbound_objects, restoreSubTrees(), and writeScanLogLine().

Referenced by validate().

{
global $ilLog;
// check mode: restore
if ($this->mode["restore"] !== true)
{
return false;
}
$this->writeScanLogLine("\nrestoreUnboundObjects:");
if ($a_unbound_objects === NULL and isset($this->unbound_objects))
{
$a_unbound_objects = $this->unbound_objects;
}
// handle wrong input
if (!is_array($a_unbound_objects))
{
$this->throwError(INVALID_PARAM, WARNING, DEBUG);
return false;
}
$message = sprintf('%s::restoreUnboundObjects(): Started...',
get_class($this));
$ilLog->write($message,$ilLog->WARNING);
// start restore process
return $this->restoreSubTrees($a_unbound_objects);
}

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ilValidator::setMode (   $a_mode,
  $a_value 
)

set mode of ilValidator Usage: setMode("restore",true) => enable object restorey setMode("all",true) => enable all features For all possible modes see variables declaration

public

Parameters
stringmode
booleanvalue (true=enable/false=disable)
Returns
boolean false on error

Definition at line 176 of file class.ilValidator.php.

References $mode, and setModeDependencies().

{
if ((!in_array($a_mode,array_keys($this->mode)) and $a_mode != "all") or !is_bool($a_value))
{
$this->throwError(INVALID_PARAM, FATAL, DEBUG);
return false;
}
if ($a_mode == "all")
{
foreach ($this->mode as $mode => $value)
{
$this->mode[$mode] = $a_value;
}
}
else
{
$this->mode[$a_mode] = $a_value;
}
// consider mode dependencies
$this->setModeDependencies();
return true;
}

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ilValidator::setModeDependencies ( )

Sets modes by considering mode dependencies; some modes require other modes to be activated.

This functions set all modes that are required according to the current setting.

private

See Also
this::setMode()

Definition at line 234 of file class.ilValidator.php.

Referenced by setMode().

{
// DO NOT change the order
if ($this->mode["restore"] === true)
{
$this->mode["scan"] = true;
$this->mode["purge"] = false;
}
if ($this->mode["purge"] === true)
{
$this->mode["scan"] = true;
$this->mode["restore"] = false;
}
if ($this->mode["restore_trash"] === true)
{
$this->mode["scan"] = true;
$this->mode["purge_trash"] = false;
}
if ($this->mode["purge_trash"] === true)
{
$this->mode["scan"] = true;
$this->mode["restore_trash"] = false;
}
if ($this->mode["clean"] === true)
{
$this->mode["scan"] = true;
}
}

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ilValidator::validate ( )

Performs the validation for each enabled mode.

Returns a validation summary for display to the user.

Returns
string Validation summary. public
See Also
this::setMode()

Definition at line 276 of file class.ilValidator.php.

References $lng, $mode, checkTreeStructure(), dumpTree(), findDeletedObjects(), findInvalidChilds(), findInvalidReferences(), findInvalidRolefolders(), findMissingObjects(), findUnboundObjects(), getDeletedObjects(), getInvalidChilds(), getInvalidReferences(), getInvalidRolefolders(), getMissingObjects(), getUnboundObjects(), initGapsInTree(), isModeEnabled(), purgeMissingObjects(), purgeTrash(), purgeUnboundObjects(), removeInvalidChilds(), removeInvalidReferences(), removeInvalidRolefolders(), restoreMissingObjects(), restoreTrash(), and restoreUnboundObjects().

{
global $lng;
// The validation summary.
$summary = "";
// STEP 1: Scan
// -------------------
$summary .= $lng->txt("scanning_system");
if (!$this->isModeEnabled("scan"))
{
$summary .= $lng->txt("disabled");
}
else
{
$summary .= "<br/>".$lng->txt("searching_invalid_refs");
if ($this->findInvalidReferences())
{
$summary .= count($this->getInvalidReferences())." ".$lng->txt("found");
}
else
{
$summary .= $lng->txt("found_none");
}
$summary .= "<br/>".$lng->txt("searching_invalid_childs");
if ($this->findInvalidChilds())
{
$summary .= count($this->getInvalidChilds())." ".$lng->txt("found");
}
else
{
$summary .= $lng->txt("found_none");
}
$summary .= "<br/>".$lng->txt("searching_missing_objs");
if ($this->findMissingObjects())
{
$summary .= count($this->getMissingObjects())." ".$lng->txt("found");
}
else
{
$summary .= $lng->txt("found_none");
}
$summary .= "<br/>".$lng->txt("searching_unbound_objs");
if ($this->findUnboundObjects())
{
$summary .= count($this->getUnboundObjects())." ".$lng->txt("found");
}
else
{
$summary .= $lng->txt("found_none");
}
$summary .= "<br/>".$lng->txt("searching_deleted_objs");
if ($this->findDeletedObjects())
{
$summary .= count($this->getDeletedObjects())." ".$lng->txt("found");
}
else
{
$summary .= $lng->txt("found_none");
}
$summary .= "<br/>".$lng->txt("searching_invalid_rolfs");
if ($this->findInvalidRolefolders())
{
$summary .= count($this->getInvalidRolefolders())." ".$lng->txt("found");
}
else
{
$summary .= $lng->txt("found_none");
}
$summary .= "<br/><br/>".$lng->txt("analyzing_tree_structure");
if ($this->checkTreeStructure())
{
$summary .= $lng->txt("tree_corrupt");
}
else
{
$summary .= $lng->txt("disabled");
}
}
// STEP 2: Dump tree
// -------------------
$summary .= "<br /><br />".$lng->txt("dumping_tree");
if (!$this->isModeEnabled("dump_tree"))
{
$summary .= $lng->txt("disabled");
}
else
{
$error_count = $this->dumpTree();
if ($error_count > 0)
{
$summary .= $lng->txt("tree_corrupt");
}
else
{
$summary .= $lng->txt("done");
}
}
// STEP 3: Clean Up
// -------------------
$summary .= "<br /><br />".$lng->txt("cleaning");
if (!$this->isModeEnabled("clean"))
{
$summary .= $lng->txt("disabled");
}
else
{
$summary .= "<br />".$lng->txt("removing_invalid_refs");
if ($this->removeInvalidReferences())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_remove").$lng->txt("skipped");
}
$summary .= "<br />".$lng->txt("removing_invalid_childs");
if ($this->removeInvalidChilds())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_remove").$lng->txt("skipped");
}
$summary .= "<br />".$lng->txt("removing_invalid_rolfs");
if ($this->removeInvalidRolefolders())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_remove").$lng->txt("skipped");
}
// find unbound objects again AFTER cleaning process!
// This updates the array 'unboundobjects' required for the further steps
// There might be other objects unbounded now due to removal of object_data/reference entries.
$this->findUnboundObjects();
}
// STEP 4: Restore objects
$summary .= "<br /><br />".$lng->txt("restoring");
if (!$this->isModeEnabled("restore"))
{
$summary .= $lng->txt("disabled");
}
else
{
$summary .= "<br />".$lng->txt("restoring_missing_objs");
if ($this->restoreMissingObjects())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_restore").$lng->txt("skipped");
}
$summary .= "<br />".$lng->txt("restoring_unbound_objs");
if ($this->restoreUnboundObjects())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_restore").$lng->txt("skipped");
}
}
// STEP 5: Restoring Trash
$summary .= "<br /><br />".$lng->txt("restoring_trash");
if (!$this->isModeEnabled("restore_trash"))
{
$summary .= $lng->txt("disabled");
}
else
{
if ($this->restoreTrash())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_restore").$lng->txt("skipped");
}
}
// STEP 6: Purging...
$summary .= "<br /><br />".$lng->txt("purging");
if (!$this->isModeEnabled("purge"))
{
$summary .= $lng->txt("disabled");
}
else
{
$summary .= "<br />".$lng->txt("purging_missing_objs");
if ($this->purgeMissingObjects())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_purge").$lng->txt("skipped");
}
$summary .= "<br />".$lng->txt("purging_unbound_objs");
if ($this->purgeUnboundObjects())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_purge").$lng->txt("skipped");
}
}
// STEP 7: Purging trash...
$summary .= "<br /><br />".$lng->txt("purging_trash");
if (!$this->isModeEnabled("purge_trash"))
{
$summary .= $lng->txt("disabled");
}
else
{
if ($this->purgeTrash())
{
$summary .= strtolower($lng->txt("done"));
}
else
{
$summary .= $lng->txt("nothing_to_purge").$lng->txt("skipped");
}
}
// STEP 8: Initialize gaps in tree
if ($this->isModeEnabled("clean"))
{
$summary .= "<br /><br />".$lng->txt("cleaning_final");
if ($this->initGapsInTree())
{
$summary .= "<br />".$lng->txt("initializing_gaps")." ".strtolower($lng->txt("done"));
}
}
// check RBAC starts here
// ...
// le fin
foreach ($this->mode as $mode => $value)
{
$arr[] = $mode."[".(int)$value."]";
}
return $summary;
}

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ilValidator::writeScanLogArray (   $a_arr)

Definition at line 1969 of file class.ilValidator.php.

References isLogEnabled().

Referenced by findDeletedObjects(), findInvalidChilds(), findInvalidRBACEntries(), findInvalidReferences(), findInvalidRolefolders(), findMissingObjects(), and findUnboundObjects().

{
if (!$this->isLogEnabled())
{
return false;
}
foreach ($a_arr as $entry)
{
$this->scan_log->write(implode("\t",$entry));
}
}

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ilValidator::writeScanLogLine (   $a_msg)

Definition at line 1982 of file class.ilValidator.php.

References isLogEnabled().

Referenced by checkTreeStructure(), dumpTree(), findDeletedObjects(), findInvalidChilds(), findInvalidRBACEntries(), findInvalidReferences(), findInvalidRolefolders(), findMissingObjects(), findUnboundObjects(), ilValidator(), initGapsInTree(), purgeMissingObjects(), purgeObjects(), purgeTrash(), purgeUnboundObjects(), removeInvalidChilds(), removeInvalidReferences(), removeInvalidRolefolders(), restoreDeletedObjects(), restoreMissingObjects(), restoreSubTrees(), restoreTrash(), and restoreUnboundObjects().

{
if (!$this->isLogEnabled())
{
return false;
}
$this->scan_log->write($a_msg);
}

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Field Documentation

ilValidator::$deleted_objects = array()

Definition at line 98 of file class.ilValidator.php.

Referenced by getDeletedObjects(), purgeTrash(), and restoreTrash().

ilValidator::$invalid_childs = array()

Definition at line 80 of file class.ilValidator.php.

Referenced by getInvalidChilds(), and removeInvalidChilds().

ilValidator::$invalid_objects = array()

Definition at line 112 of file class.ilValidator.php.

ilValidator::$invalid_references = array()

Definition at line 74 of file class.ilValidator.php.

Referenced by getInvalidReferences(), and removeInvalidReferences().

ilValidator::$invalid_rolefolders = array()

Definition at line 106 of file class.ilValidator.php.

Referenced by getInvalidRolefolders(), and removeInvalidRolefolders().

ilValidator::$logging = false

Definition at line 118 of file class.ilValidator.php.

Referenced by isLogEnabled().

ilValidator::$media_pool_ids = null
protected

Definition at line 33 of file class.ilValidator.php.

ilValidator::$missing_objects = array()

Definition at line 86 of file class.ilValidator.php.

Referenced by getMissingObjects(), purgeMissingObjects(), and restoreMissingObjects().

ilValidator::$mode
Initial value:
array(
"scan" => true,
"dump_tree" => false,
"clean" => false,
"restore" => false,
"purge" => false,
"restore_trash" => false,
"purge_trash" => false
)

Definition at line 60 of file class.ilValidator.php.

Referenced by setMode(), and validate().

ilValidator::$object_types_exclude
Initial value:
array("adm","root","mail","usrf","objf","lngf",
"trac","taxf","auth","rolf","assf","svyf","extt","adve","fold")

Definition at line 53 of file class.ilValidator.php.

ilValidator::$rbac_object_types = NULL

Definition at line 39 of file class.ilValidator.php.

ilValidator::$scan_log

Definition at line 124 of file class.ilValidator.php.

Referenced by readScanLog().

ilValidator::$scan_log_file = "scanlog.log"

Definition at line 126 of file class.ilValidator.php.

ilValidator::$scan_log_separator = "<!-- scan log start -->"

Definition at line 128 of file class.ilValidator.php.

ilValidator::$unbound_objects = array()

Definition at line 92 of file class.ilValidator.php.

Referenced by getUnboundObjects(), purgeUnboundObjects(), and restoreUnboundObjects().

The documentation for this class was generated from the following file: