[mirrors/Kyberia-bloodline.git] / wwwroot / backend / mysql / backend.inc

<?php
class nodes {
// All mysql code should go here
// Split into multiple files if needed

public static function processContent($node_content) { return processContent_hack($node_content); } //XXX TODO FIXME HACK

// Called for every node view. Updates node views, neurons, 
public static function update_nodes($user_id,$node_id,$referer_id) {
	global $node,$db,$error;
	$db->update("update nodes set node_views=node_views+1 where".
		     "node_id='".$node_id."'");
	if (is_numeric($referer_id) && ($referer_id)) {
		$q="update neurons set synapse=synapse+1 where ".
		    "dst='".$node_id."' and src='$referer_id'";
		$result=$db->update($q);
		if (!$result) {
			$q="insert into neurons set synapse_creator='".
			   $user_id."',dst='".$node_id.
			   "',src='$referer_id',synapse=1";
			$db->query($q);
		}
	}

	// LEVENSHTEIN

	// these 4 lines are not the source of kyberia lagging problems.
	// leave them. started on the 10.4. 
	// data gained will be used for scientific purposes
	if ($user_id) {
	        $q="insert delayed into levenshtein set user_id='".
		    $user_id."',node_id='".$node_id."'";
	        $db->update($q);
	}
}


public static function putNode($what,$where,$checkpermissions=true) {
	global $db,$error,$error_messages;
	$user_id = $_SESSION['user_id'];
	if (!$user_id) {
		$user_id=UBIK_ID;
	}
	if (!is_numeric($what) || !is_numeric($where)) {
		$error=$error_messages['NUMERIC_NOT_NUMERIC'];
	}

	$nodeshell = nodes::getNodeById($where,$user_id);
	$nodeshell_vector = $nodeshell['node_vector'];
	
	if ($checkpermissions) {
		$nodeshell_permissions = permissions::checkPerms($nodeshell);
		if (!$nodeshell_permissions['w']) {
			$error = $error_messages['WRITE_PERMISSION_ERROR'];
			return false;
    		}
	}

	$dst_vector = $nodeshell_vector.str_pad($chosen,VECTOR_CHARS,0,STR_PAD_LEFT);
	$q = "update neurons set synapse_created=NOW(),link='hard',synapse=synapse+1, dst_vector='$dst_vector' where src='$what' and dst='$where'";
	$result=$db->update($q);

	if (!$result) $db->query("insert into neurons set synapse_creator='$user_id',synapse_created=NOW(), src='$what',dst='$where',dst_vector='$dst_vector',link='hard',synapse=1");
	$db->query("update nodes set lastdescendant_created=NOW(),node_children_count=node_children_count+1 where node_id='$where'");
}

public static function addNode($params) {
        global $db,$node,$error,$error_messages;
        $parent_id=$params['node_parent'];

        if ($params['flag']=='registration') $params['node_creator']=UBIK_ID;

        if (!is_numeric($parent_id)) {
                $parent_id=$node['node_id'];
        }

        $parent_permissions=permissions::checkPerms($parent_id);

        if (!$parent_permissions['w']) {
                $error=$error_messages['WRITE_PERMISSION_ERROR'];
                logger::log('add','error','WRITE_PERMISSION_ERROR');
                return false;
        }


        $kset=$db->query("select user_k from users where user_id='$params[node_creator]'");
        $kset->next();
        $user_k=$kset->getString('user_k');

        if (!$user_k && $params['node_creator']!=UBIK_ID) {
                $error=$error_messages['K_SPENT'];
        }


        $set=$db->query("select node_vector,node_children_count from nodes where node_id='$parent_id'");
        $set->next();
        $parent_vector=$set->getString('node_vector');

        if ($set->getInt('node_children_count')>MAX_CHILDREN) {
                $error=$error_messages['MAX_CHILDREN'];
                return false;
        }

        //working with external links
        $external_link=$params['external_link'];

        $template_id=$params['template_id'];
        if (!is_numeric($template_id)) $template_id=DEFAULT_TEMPLATE_ID;

        if(!isset($params['node_system_access'])) $params['node_system_access'] = $node['node_system_access'];
        if(!isset($params['node_external_access'])) $params['node_external_access'] = $node['node_external_access'];

        $q="insert into nodes set
node_name='".$params['node_name']."',
node_external_access='".$params['node_external_access']."',
node_system_access='".$params['node_system_access']."',
node_creator='".$params['node_creator']."',
template_id='".$template_id."',
external_link='".$external_link."',
node_parent='".$parent_id."',
node_views=0,node_created=NOW(),
node_content='".$params['node_content']."',
node_vector='".$params['node_vector']."'";
        $db->query("start transaction");
        $db->query($q);
        $id=$db->getLastInsertId();

//node_content MyIsam only for FULLTEXT !!!
//        $db->query("insert into node_content set node_id='$id',node_content='".$params['node_content']."'");

        $new_id=str_pad($id,VECTOR_CHARS,"0",STR_PAD_LEFT);
        $new_vector=trim($parent_vector,"z").$new_id;

        if ($params['flag']=='registration') $db->query("update nodes set node_system_access='public',node_external_access='yes',node_creator=$id where node_id=$id");

        $db->query("update nodes set node_vector='$new_vector' where node_id='$id'");
        $db->query("update nodes set node_children_count=node_children_count+1 where node_id='$parent_id'");

        $node_vector=trim(chunk_split($new_vector,VECTOR_CHARS,';'),';');

        $ancestors=explode(";",$node_vector);
        foreach($ancestors as $key => $ancestor_id) {
                if ($key) {
                        $ancestor_id=ltrim($ancestor_id,'0');
                        $db->query("update nodes set node_descendant_count=node_descendant_count+1,lastdescendant_created=NOW() where node_id='$ancestor_id'");
                }
        }
        $db->query("update node_access set node_user_subchild_count=node_user_subchild_count+1 where node_id='$parent_id'");
        --$user_k;
        $db->query("update users set user_k='$user_k' where user_id='$params[node_creator]'");
        $db->query("commit");
        logger::log('add','ok',$id);

        if ($_POST['code']) {
                $params['node_creator']=UBIK_ID;
                $params['node_parent']=WARNING_ZONE;
                $params['node_name']="node $id added with code_parameter";
                $params['node_content']="node <a href='/id/$id'>$id</a> added with code_parameter";
                unset($_POST['code']);
                nodes::addNode($params);
        }

        return $id;
}


public static function getUserByLogin($login) {
	global $error, $error_messages;
	$q2="select user_id from users where login='".$login."'";
	$userset=$db->query($q2);
	$userset->next();
	$id=$userset->getString('user_id');
	if (is_numeric($id)) return $id;
	else {
		$error = $error_messages['USER_NOT_FOUND'];
		return false;
	}
}

public static function getNodeIdByName($name, $external_link=false) {
	global $db;

	$qh = sprintf('select node_id from nodes where node_name = "%s"', db_escape_string($name));
    	if ($external_link)
		$qh .= sprintf(' and external_link="%s"', db_escape_string($external_link));

	$set = $db->query($qh);
	$set->next();
	return $set->getString('node_id');
}

public static function getNodeById($node_handle,$user_id, $table_name="nodes") {
	global $db, $error;
	$q="select length(concat($table_name.node_vector)) as
vector_depth,$table_name.*,$table_name.node_creator as
node_owner_id,creator.node_name as owner,node_access.*,$table_name.node_id as
node_id,node_parent.node_name as node_parent_name
from $table_name left join $table_name as creator on creator.node_id=$table_name.node_creator
left join $table_name as node_parent on $table_name.node_parent=node_parent.node_id
left join node_access on (node_access.node_id='$node_handle' and node_access.user_id='$user_id')
where $table_name.node_id='$node_handle'";

	$result=$db->query($q);
	if (!$result->next()) {
		return false;
	}
	else {
		$node=addBase36id($result->getRecord());
		$node['node_vector']=trim($node['node_vector'],"z");
		$ancestors=str_split($node['node_vector'],VECTOR_CHARS);
		foreach ($ancestors as $ancestor) {
			$node['ancestors'][]=array("name"=>"","link"=>ltrim($ancestor,"0"));
		}
	}
	transport_process_node($node);
	return $node;

}


public static function redirByName($node_handle) {
	global $db, $error;
	$user_id=$_SESSION['user_id'];
	$set=$db->query("select node_id from nodes where node_name='$node_handle' and node_creator='$user_id'");
	if ($set->next()) {
		$node_id=$set->getString('node_id');
		if (!empty($node_id)) {
			return nodes::getNodeById($node_id,$_SESSION['user_id']);
		}

	}
	$set=$db->query("select node_id from nodes where node_name='$node_handle' ");
	$set->next();
	$node_id=$set->getString('node_id');
	if (!empty($node_id)) {
		return nodes::getNodeById($node_id,$_SESSION['user_id']);
	}

}

public static function getNodesByName($node_handle) {
	global $db, $error;
	$q="select nodes.* from nodes where node_name='$node_handle%'";

	$result=$db->query($q);

	while ($result->next()){
		$record[]=addBase36id($result->getRecord());
	}
	return $record;

}


public static function getChildrenNodes($orderby="desc",$offset=0,$limit=DEFAULT_LISTING_AMOUNT) {
	global $db, $error, $node;
	$node_handle=$node['node_id'];

	$q="select users.*,nodes.* from nodes
left join users on users.user_id=nodes.node_creator where
node_parent='$node_handle' order by node_created $orderby LIMIT $offset,$limit";
	#echo $q;
	$result=$db->query($q);

	while ($result->next()) {
		$array[]=addBase36id($result->getRecord());
	}

	return $array;

}


public static function GetUserSubmissionsChildren($user_id,$limit=23,$offset=0,$orderby='') {
  global $db;

	if (!is_numeric($user_id)) {
		return -1;
	}
	if (!is_numeric($limit)) {
		return -1;
	}
	if (!is_numeric($offset)) {
		return -1;
	}

	// XXX orderby mysql escape

	$q = "select child.*, users.login as login, parent.node_name as parent_name from nodes as child join 
		(select node_id,node_name,node_creator from nodes where node_creator='$user_id')
		as parent on child.node_parent=parent.node_id and child.node_creator <> '$user_id'
		join users as users on users.user_id=child.node_creator order by node_created desc
		$orderby LIMIT $offset,$limit";

  #echo $q;
  $result=$db->query($q);

  while ($result->next()) {
    $array[]=addBase36id($result->getRecord());
  }

  return $array;
}

public static function getThreadedChildrenNodes($orderby="desc",$offset=0,$limit=DEFAULT_LISTING_AMOUNT) {
	global $db, $error, $node;
	$node_handle=$node['node_id'];

	$q="select length(node_vector) as depth,users.login,nodes.* from nodes left join users on users.user_id=nodes.node_creator where  node_vector like '".$node['node_vector'].";".$node['node_id']."%' and node_type=3 order by concat(node_vector,';',nodes.node_id,';z') desc,depth LIMIT $offset,$limit";

	$result=$db->query($q);

	while ($result->next()) {
		$children_array[]=addBase36id($result->getRecord());
	}

	return $children_array;

}


public static function getNodeAccessData() {
	global $node,$db;
	$q="select users.login,node_access.* from node_access left join users on users.user_id=node_access.user_id where node_id='".$node['node_id']."' and node_permission!=''";
	$result=$db->query($q);

	while ($result->next()) {
		$access_data[]=$result->getRecord();
	}

	return $access_data;

}


// Simple internal function to set node parrent

public static function setParent($node_id,$parent_id) {
	global $db,$node,$error,$error_messages;

	if (!is_numeric($parent_id)) {
		return false;
	}

	$q="select node_vector from nodes where node_id='$parent_id'";
	$set=$db->query($q);
	$set->next();
	$parent_vector=$set->getString('node_vector');
	$new_vector=$parent_vector.str_pad($node_id,VECTOR_CHARS,"0",STR_PAD_LEFT);

	$q="update nodes set node_parent='$parent_id',node_vector='$new_vector' where node_id='$node_id'";
	$db->query($q);

	return 0;
}

// Get last submissions of all users on kyberia.
// XXX ad permission checking
// XXX remove constants

public static function getLast($params) {
	global $db,$node,$error,$error_messages;

	if ($params['listing_amount']=='all') $listing_amount='-1';
	else $listing_amount=addslashes($params['listing_amount']);
	if (empty($params['offset'])) $offset=0;
	else $offset=addslashes($params['offset']);

	global $db,$node;
	if ($node['node_id']==DEF_LAST_NODE)  {
		$interval=" nodes.node_created>NOW()-INTERVAL 65 HOUR and";
		$vector="00";
	}	else {

		$vector=$node['node_vector'];
		$interval=" nodes.node_created>NOW()-INTERVAL 42 DAY and";
	}

	$node_id=$node['node_id'];
	$user_id=$_SESSION['user_id'];
		$q="select parent.node_name as parent_name,users.*,nodes.* from nodes
		left join nodes as parent on parent.node_id=nodes.node_parent
		left  join users on users.user_id=nodes.node_creator where $interval
		nodes.node_vector like '$vector%'  and
		nodes.node_system_access!='private' order by nodes.node_id desc LIMIT $offset,$listing_amount ";

	$set=$db->query($q);

	while ($set->next()) {
		$last[]=$set->getRecord();
	}

	return $last;

}


// Get nodes sorted by weight_k specific to user

public static function getKNeurons($user_id,$interval) {
	global $db,$node,$error,$error_messages;

	$q="call k_neurons('$user_id','$interval')";
	$set=$db->query($q);

	while ($set->next()) {
		$k_array[]=$set->getRecord();
	}

	return $k_array;
}

// setSynapse

// Set synapse weight. 
// If synapse does not exists, create a new one.
// Secure.
// Returns true on sucess, otherwise false.

public static function setSynapse($params){
	global $db,$node,$error,$error_messages;

	// security check
	if ((!is_numeric($params['src'])) 
		or (!is_numeric($params['dst']))
		or (!is_numeric($params['weight']))) {

		return false;
	}

	$src=$params['src'];
	$dst=$params['dst'];
	$weight=$params['weight'];

	// weight could be only positive
	if ( $weight < 0) {
		return false;
	}

	// if already exists
	$q="select count(src) from neurons where dst ='$dst' and src = '$src'";
	$set=$db->query($q);
	$set->next();
	$isrc=$set->getString('count(src)');

	if ( $isrc > 0 ) {
		$q="update neurons set synapse_weight='$weight' 
			where dst = '$dst' and src = '$src'";
	} else { 
		// FIXME no vector set
		$q="insert into neurons values('$weight','$dst','$src',0,'synapse',
						CURRENT_TIMESTAMP(),now(),NULL,$src)";
	}
	$set=$db->query($q);

	return true;
}

// getSynapseWeight

// If synapse does not exists, weight is 1
// Secure.
// Returns synapse weight (from user to node)

public static function getSynapseWeight($user_id,$node_id){
	global $db;

	if (!is_numeric($user_id)) 
		{ return -1; }
	if (!is_numeric($node_id)) 
		{ return -1; }

	$set=$db->query("select synapse_weight from neurons where src =".
		$user_id." and dst = ".$node_id." and link='synapse'");

	$set->next();
	$synapse_weight=$set->getString('synapse_weight');

	if (! ($synapse_weight) ) { $synapse_weight = 1;}	

	return $synapse_weight;

}
}

?>
Commit	Line	Data
9b80aa4a	1	<?php
3676f242	2	class nodes {
2bda541f	3	// All mysql code should go here
5b9c0808	4	// Split into multiple files if needed
5b9c0808	5
fee499b9	6	public static function processContent($node_content) { return processContent_hack($node_content); } //XXX TODO FIXME HACK
5b9c0808	7
5b9c0808	8	// Called for every node view. Updates node views, neurons,
fee499b9	9	public static function update_nodes($user_id,$node_id,$referer_id) {
3676f242	10	global $node,$db,$error;
5b9c0808	11	$db->update("update nodes set node_views=node_views+1 where".
	12	"node_id='".$node_id."'");
	13	if (is_numeric($referer_id) && ($referer_id)) {
	14	$q="update neurons set synapse=synapse+1 where ".
	15	"dst='".$node_id."' and src='$referer_id'";
	16	$result=$db->update($q);
	17	if (!$result) {
	18	$q="insert into neurons set synapse_creator='".
	19	$user_id."',dst='".$node_id.
	20	"',src='$referer_id',synapse=1";
	21	$db->query($q);
	22	}
	23	}
	24
	25	// LEVENSHTEIN
	26
	27	// these 4 lines are not the source of kyberia lagging problems.
	28	// leave them. started on the 10.4.
	29	// data gained will be used for scientific purposes
	30	if ($user_id) {
	31	$q="insert delayed into levenshtein set user_id='".
	32	$user_id."',node_id='".$node_id."'";
	33	$db->update($q);
	34	}
	35	}
	36
3676f242	37
fee499b9	38	public static function putNode($what,$where,$checkpermissions=true) {
47ef41dd DH	39	global $db,$error,$error_messages;
	40	$user_id = $_SESSION['user_id'];
	41	if (!$user_id) {
	42	$user_id=UBIK_ID;
	43	}
	44	if (!is_numeric($what) \|\| !is_numeric($where)) {
	45	$error=$error_messages['NUMERIC_NOT_NUMERIC'];
	46	}
	47
	48	$nodeshell = nodes::getNodeById($where,$user_id);
	49	$nodeshell_vector = $nodeshell['node_vector'];
	50
	51	if ($checkpermissions) {
de81c0b4	52	$nodeshell_permissions = permissions::checkPerms($nodeshell);
47ef41dd DH	53	if (!$nodeshell_permissions['w']) {
	54	$error = $error_messages['WRITE_PERMISSION_ERROR'];
	55	return false;
	56	}
	57	}
	58
	59	$dst_vector = $nodeshell_vector.str_pad($chosen,VECTOR_CHARS,0,STR_PAD_LEFT);
	60	$q = "update neurons set synapse_created=NOW(),link='hard',synapse=synapse+1, dst_vector='$dst_vector' where src='$what' and dst='$where'";
	61	$result=$db->update($q);
	62
	63	if (!$result) $db->query("insert into neurons set synapse_creator='$user_id',synapse_created=NOW(), src='$what',dst='$where',dst_vector='$dst_vector',link='hard',synapse=1");
	64	$db->query("update nodes set lastdescendant_created=NOW(),node_children_count=node_children_count+1 where node_id='$where'");
	65	}
	66
fee499b9	67	public static function addNode($params) {
3676f242 H	68	global $db,$node,$error,$error_messages;
	69	$parent_id=$params['node_parent'];
	70
8300ec1a DH	71	if ($params['flag']=='registration') $params['node_creator']=UBIK_ID;
8300ec1a DH	72
3676f242 H	73	if (!is_numeric($parent_id)) {
	74	$parent_id=$node['node_id'];
	75	}
	76
de81c0b4	77	$parent_permissions=permissions::checkPerms($parent_id);
da341bd0	78
3676f242 H	79	if (!$parent_permissions['w']) {
	80	$error=$error_messages['WRITE_PERMISSION_ERROR'];
	81	logger::log('add','error','WRITE_PERMISSION_ERROR');
	82	return false;
	83	}
	84
	85
	86	$kset=$db->query("select user_k from users where user_id='$params[node_creator]'");
	87	$kset->next();
	88	$user_k=$kset->getString('user_k');
	89
3676f242 H	90	if (!$user_k && $params['node_creator']!=UBIK_ID) {
3676f242 H	91	$error=$error_messages['K_SPENT'];
3676f242 H	92	}
	93
	94
	95
	96	$set=$db->query("select node_vector,node_children_count from nodes where node_id='$parent_id'");
	97	$set->next();
	98	$parent_vector=$set->getString('node_vector');
	99
	100	if ($set->getInt('node_children_count')>MAX_CHILDREN) {
	101	$error=$error_messages['MAX_CHILDREN'];
	102	return false;
	103	}
	104
	105	//working with external links
	106	$external_link=$params['external_link'];
	107
	108	$template_id=$params['template_id'];
	109	if (!is_numeric($template_id)) $template_id=DEFAULT_TEMPLATE_ID;
	110
	111	if(!isset($params['node_system_access'])) $params['node_system_access'] = $node['node_system_access'];
	112	if(!isset($params['node_external_access'])) $params['node_external_access'] = $node['node_external_access'];
	113
	114	$q="insert into nodes set
	115	node_name='".$params['node_name']."',
	116	node_external_access='".$params['node_external_access']."',
	117	node_system_access='".$params['node_system_access']."',
	118	node_creator='".$params['node_creator']."',
	119	template_id='".$template_id."',
	120	external_link='".$external_link."',
	121	node_parent='".$parent_id."',
	122	node_views=0,node_created=NOW(),
	123	node_content='".$params['node_content']."',
	124	node_vector='".$params['node_vector']."'";
	125	$db->query("start transaction");
	126	$db->query($q);
	127	$id=$db->getLastInsertId();
	128
	129	//node_content MyIsam only for FULLTEXT !!!
	130	// $db->query("insert into node_content set node_id='$id',node_content='".$params['node_content']."'");
	131
	132	$new_id=str_pad($id,VECTOR_CHARS,"0",STR_PAD_LEFT);
	133	$new_vector=trim($parent_vector,"z").$new_id;
	134
	135	if ($params['flag']=='registration') $db->query("update nodes set node_system_access='public',node_external_access='yes',node_creator=$id where node_id=$id");
	136
	137	$db->query("update nodes set node_vector='$new_vector' where node_id='$id'");
	138	$db->query("update nodes set node_children_count=node_children_count+1 where node_id='$parent_id'");
	139
	140	$node_vector=trim(chunk_split($new_vector,VECTOR_CHARS,';'),';');
	141
	142	$ancestors=explode(";",$node_vector);
	143	foreach($ancestors as $key => $ancestor_id) {
	144	if ($key) {
	145	$ancestor_id=ltrim($ancestor_id,'0');
	146	$db->query("update nodes set node_descendant_count=node_descendant_count+1,lastdescendant_created=NOW() where node_id='$ancestor_id'");
	147	}
	148	}
	149	$db->query("update node_access set node_user_subchild_count=node_user_subchild_count+1 where node_id='$parent_id'");
	150	--$user_k;
	151	$db->query("update users set user_k='$user_k' where user_id='$params[node_creator]'");
	152	$db->query("commit");
	153	logger::log('add','ok',$id);
	154
	155	if ($_POST['code']) {
156	$params['node_creator']=UBIK_ID;
157	$params['node_parent']=WARNING_ZONE;
158	$params['node_name']="node $id added with code_parameter";
159	$params['node_content']="node <a href='/id/$id'>$id</a> added with code_parameter";
160	unset($_POST['code']);
161	nodes::addNode($params);
162	}
163
164	return $id;
165	}
166
167
fee499b9	168	public static function getUserByLogin($login) {
b101f04f	169	global $error, $error_messages;
	170	$q2="select user_id from users where login='".$login."'";
	171	$userset=$db->query($q2);
	172	$userset->next();
	173	$id=$userset->getString('user_id');
	174	if (is_numeric($id)) return $id;
	175	else {
	176	$error = $error_messages['USER_NOT_FOUND'];
	177	return false;
	178	}
	179	}
3676f242	180
fee499b9	181	public static function getNodeIdByName($name, $external_link=false) {
b101f04f	182	global $db;
3676f242	183
78f1a5f4	184	$qh = sprintf('select node_id from nodes where node_name = "%s"', db_escape_string($name));
b101f04f	185	if ($external_link)
78f1a5f4	186	$qh .= sprintf(' and external_link="%s"', db_escape_string($external_link));
f4d6836d	187
b101f04f	188	$set = $db->query($qh);
	189	$set->next();
	190	return $set->getString('node_id');
	191	}
3676f242	192
fee499b9	193	public static function getNodeById($node_handle,$user_id, $table_name="nodes") {
b101f04f	194	global $db, $error;
b101f04f	195	$q="select length(concat($table_name.node_vector)) as
3676f242 H	196	vector_depth,$table_name.*,$table_name.node_creator as
	197	node_owner_id,creator.node_name as owner,node_access.*,$table_name.node_id as
	198	node_id,node_parent.node_name as node_parent_name
	199	from $table_name left join $table_name as creator on creator.node_id=$table_name.node_creator
	200	left join $table_name as node_parent on $table_name.node_parent=node_parent.node_id
	201	left join node_access on (node_access.node_id='$node_handle' and node_access.user_id='$user_id')
	202	where $table_name.node_id='$node_handle'";
	203
b101f04f	204	$result=$db->query($q);
	205	if (!$result->next()) {
	206	return false;
	207	}
	208	else {
	209	$node=addBase36id($result->getRecord());
	210	$node['node_vector']=trim($node['node_vector'],"z");
	211	$ancestors=str_split($node['node_vector'],VECTOR_CHARS);
	212	foreach ($ancestors as $ancestor) {
	213	$node['ancestors'][]=array("name"=>"","link"=>ltrim($ancestor,"0"));
	214	}
	215	}
	216	transport_process_node($node);
	217	return $node;
3676f242	218
b101f04f	219	}
3676f242 H	220
3676f242 H	221
fee499b9	222	public static function redirByName($node_handle) {
b101f04f	223	global $db, $error;
	224	$user_id=$_SESSION['user_id'];
	225	$set=$db->query("select node_id from nodes where node_name='$node_handle' and node_creator='$user_id'");
	226	if ($set->next()) {
	227	$node_id=$set->getString('node_id');
	228	if (!empty($node_id)) {
	229	return nodes::getNodeById($node_id,$_SESSION['user_id']);
	230	}
3676f242	231
b101f04f	232	}
	233	$set=$db->query("select node_id from nodes where node_name='$node_handle' ");
	234	$set->next();
	235	$node_id=$set->getString('node_id');
	236	if (!empty($node_id)) {
	237	return nodes::getNodeById($node_id,$_SESSION['user_id']);
	238	}
3676f242	239
b101f04f	240	}
3676f242	241
fee499b9	242	public static function getNodesByName($node_handle) {
b101f04f	243	global $db, $error;
b101f04f	244	$q="select nodes.* from nodes where node_name='$node_handle%'";
3676f242	245
b101f04f	246	$result=$db->query($q);
3676f242	247
b101f04f	248	while ($result->next()){
	249	$record[]=addBase36id($result->getRecord());
	250	}
	251	return $record;
3676f242	252
b101f04f	253	}
3676f242 H	254
	255
	256
fee499b9	257	public static function getChildrenNodes($orderby="desc",$offset=0,$limit=DEFAULT_LISTING_AMOUNT) {
b101f04f	258	global $db, $error, $node;
b101f04f	259	$node_handle=$node['node_id'];
3676f242	260
b101f04f	261	$q="select users.,nodes. from nodes
3676f242 H	262	left join users on users.user_id=nodes.node_creator where
3676f242 H	263	node_parent='$node_handle' order by node_created $orderby LIMIT $offset,$limit";
368d735f	264	#echo $q;
b101f04f	265	$result=$db->query($q);
3676f242	266
b101f04f	267	while ($result->next()) {
	268	$array[]=addBase36id($result->getRecord());
	269	}
3676f242	270
b101f04f	271	return $array;
3676f242	272
b101f04f	273	}
3676f242 H	274
3676f242 H	275
fee499b9	276	public static function GetUserSubmissionsChildren($user_id,$limit=23,$offset=0,$orderby='') {
368d735f H	277	global $db;
368d735f H	278
ad7b5117	279	if (!is_numeric($user_id)) {
	280	return -1;
	281	}
	282	if (!is_numeric($limit)) {
	283	return -1;
	284	}
	285	if (!is_numeric($offset)) {
	286	return -1;
	287	}
	288
	289	// XXX orderby mysql escape
	290
1f014b94	291	$q = "select child.*, users.login as login, parent.node_name as parent_name from nodes as child join
229a0047	292	(select node_id,node_name,node_creator from nodes where node_creator='$user_id')
1f014b94	293	as parent on child.node_parent=parent.node_id and child.node_creator <> '$user_id'
1f014b94	294	join users as users on users.user_id=child.node_creator order by node_created desc
ad7b5117	295	$orderby LIMIT $offset,$limit";
ad7b5117	296
368d735f H	297	#echo $q;
	298	$result=$db->query($q);
	299
	300	while ($result->next()) {
	301	$array[]=addBase36id($result->getRecord());
	302	}
	303
	304	return $array;
	305	}
	306
fee499b9	307	public static function getThreadedChildrenNodes($orderby="desc",$offset=0,$limit=DEFAULT_LISTING_AMOUNT) {
b101f04f	308	global $db, $error, $node;
b101f04f	309	$node_handle=$node['node_id'];
3676f242	310
b101f04f	311	$q="select length(node_vector) as depth,users.login,nodes.* from nodes left join users on users.user_id=nodes.node_creator where node_vector like '".$node['node_vector'].";".$node['node_id']."%' and node_type=3 order by concat(node_vector,';',nodes.node_id,';z') desc,depth LIMIT $offset,$limit";
3676f242	312
b101f04f	313	$result=$db->query($q);
3676f242	314
b101f04f	315	while ($result->next()) {
	316	$children_array[]=addBase36id($result->getRecord());
	317	}
3676f242	318
b101f04f	319	return $children_array;
3676f242	320
b101f04f	321	}
3676f242 H	322
	323
	324
fee499b9	325	public static function getNodeAccessData() {
b101f04f	326	global $node,$db;
	327	$q="select users.login,node_access.* from node_access left join users on users.user_id=node_access.user_id where node_id='".$node['node_id']."' and node_permission!=''";
	328	$result=$db->query($q);
3676f242	329
b101f04f	330	while ($result->next()) {
	331	$access_data[]=$result->getRecord();
	332	}
3676f242	333
b101f04f	334	return $access_data;
3676f242	335
b101f04f	336	}
3676f242 H	337
	338
	339	// Simple internal function to set node parrent
	340
fee499b9	341	public static function setParent($node_id,$parent_id) {
b101f04f	342	global $db,$node,$error,$error_messages;
3676f242	343
b101f04f	344	if (!is_numeric($parent_id)) {
	345	return false;
	346	}
3676f242	347
3676f242	348	$q="select node_vector from nodes where node_id='$parent_id'";
b101f04f	349	$set=$db->query($q);
	350	$set->next();
	351	$parent_vector=$set->getString('node_vector');
	352	$new_vector=$parent_vector.str_pad($node_id,VECTOR_CHARS,"0",STR_PAD_LEFT);
3676f242	353
0c936d6e	354	$q="update nodes set node_parent='$parent_id',node_vector='$new_vector' where node_id='$node_id'";
3676f242	355	$db->query($q);
b101f04f	356
b101f04f	357	return 0;
3676f242 H	358	}
3676f242 H	359
1f014b94	360	// Get last submissions of all users on kyberia.
	361	// XXX ad permission checking
	362	// XXX remove constants
	363
	364	public static function getLast($params) {
	365	global $db,$node,$error,$error_messages;
	366
	367	if ($params['listing_amount']=='all') $listing_amount='-1';
	368	else $listing_amount=addslashes($params['listing_amount']);
	369	if (empty($params['offset'])) $offset=0;
	370	else $offset=addslashes($params['offset']);
	371
	372	global $db,$node;
38927c4d	373	if ($node['node_id']==DEF_LAST_NODE) {
1f014b94	374	$interval=" nodes.node_created>NOW()-INTERVAL 65 HOUR and";
38927c4d	375	$vector="00";
1f014b94	376	} else {
	377
	378	$vector=$node['node_vector'];
	379	$interval=" nodes.node_created>NOW()-INTERVAL 42 DAY and";
	380	}
	381
	382	$node_id=$node['node_id'];
	383	$user_id=$_SESSION['user_id'];
	384	$q="select parent.node_name as parent_name,users.,nodes. from nodes
	385	left join nodes as parent on parent.node_id=nodes.node_parent
	386	left join users on users.user_id=nodes.node_creator where $interval
	387	nodes.node_vector like '$vector%' and
	388	nodes.node_system_access!='private' order by nodes.node_id desc LIMIT $offset,$listing_amount ";
	389
	390	$set=$db->query($q);
229a0047	391
	392	while ($set->next()) {
	393	$last[]=$set->getRecord();
	394	}
	395
	396	return $last;
	397
1f014b94	398	}
	399
	400
62f1482a	401	// Get nodes sorted by weight_k specific to user
b101f04f	402
fee499b9	403	public static function getKNeurons($user_id,$interval) {
b101f04f	404	global $db,$node,$error,$error_messages;
	405
	406	$q="call k_neurons('$user_id','$interval')";
	407	$set=$db->query($q);
b101f04f	408
62f1482a	409	while ($set->next()) {
	410	$k_array[]=$set->getRecord();
	411	}
b101f04f	412
62f1482a	413	return $k_array;
3676f242 H	414	}
3676f242 H	415
ac063e07	416	// setSynapse
bd9d442f	417
ac063e07	418	// Set synapse weight.
	419	// If synapse does not exists, create a new one.
	420	// Secure.
	421	// Returns true on sucess, otherwise false.
bd9d442f	422
fee499b9	423	public static function setSynapse($params){
bd9d442f	424	global $db,$node,$error,$error_messages;
bd9d442f	425
ac063e07	426	// security check
	427	if ((!is_numeric($params['src']))
	428	or (!is_numeric($params['dst']))
	429	or (!is_numeric($params['weight']))) {
	430
73063bed	431	return false;
73063bed	432	}
ac063e07	433
de9b5039	434	$src=$params['src'];
	435	$dst=$params['dst'];
	436	$weight=$params['weight'];
73063bed	437
b17a1e9b	438	// weight could be only positive
	439	if ( $weight < 0) {
	440	return false;
	441	}
	442
73063bed	443	// if already exists
9c833cba	444	$q="select count(src) from neurons where dst ='$dst' and src = '$src'";
73063bed	445	$set=$db->query($q);
73063bed	446	$set->next();
9c833cba	447	$isrc=$set->getString('count(src)');
ac063e07	448
9c833cba	449	if ( $isrc > 0 ) {
9c833cba	450	$q="update neurons set synapse_weight='$weight'
73063bed	451	where dst = '$dst' and src = '$src'";
	452	} else {
	453	// FIXME no vector set
ac063e07	454	$q="insert into neurons values('$weight','$dst','$src',0,'synapse',
73063bed	455	CURRENT_TIMESTAMP(),now(),NULL,$src)";
	456	}
	457	$set=$db->query($q);
bd9d442f	458
	459	return true;
	460	}
	461
186fa4a9	462	// getSynapseWeight
bd9d442f	463
186fa4a9	464	// If synapse does not exists, weight is 1
	465	// Secure.
	466	// Returns synapse weight (from user to node)
	467
fee499b9	468	public static function getSynapseWeight($user_id,$node_id){
186fa4a9	469	global $db;
	470
	471	if (!is_numeric($user_id))
	472	{ return -1; }
	473	if (!is_numeric($node_id))
	474	{ return -1; }
	475
	476	$set=$db->query("select synapse_weight from neurons where src =".
	477	$user_id." and dst = ".$node_id." and link='synapse'");
	478
	479	$set->next();
8f32f1b8	480	$synapse_weight=$set->getString('synapse_weight');
186fa4a9	481
	482	if (! ($synapse_weight) ) { $synapse_weight = 1;}
	483
	484	return $synapse_weight;
bd9d442f	485
62f1482a	486	}
186fa4a9	487	}
	488
	489	?>