mirror of
https://github.com/pierre42100/ComunicAPI
synced 2024-11-23 22:09:29 +00:00
507 lines
14 KiB
PHP
507 lines
14 KiB
PHP
<?php
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/**
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* Groups component
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*
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* @author Pierre HUBERT
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*/
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class GroupsComponent {
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/**
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* Groups list table
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*/
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const GROUPS_LIST_TABLE = DBprefix . "groups";
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/**
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* Groups members table
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*/
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const GROUPS_MEMBERS_TABLE = DBprefix."groups_members";
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/**
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* Create a new group
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*
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* @param NewGroup $newGroup Information about the new group
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* to create
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* @return int The ID of the created group / -1 in case of failure
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*/
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public function create(NewGroup $newGroup) : int {
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//Insert the group in the database
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db()->addLine(self::GROUPS_LIST_TABLE, array(
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"time_create" => $newGroup->get_time_sent(),
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"userid_create" => $newGroup->get_userID(),
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"name" => $newGroup->get_name()
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));
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//Get the ID of the last inserted group
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$groupID = db()->getLastInsertedID();
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//Check for errors
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if(!$groupID > 0)
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return -1;
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//Register the user who created the group as an admin of the group
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$member = new GroupMember;
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$member->set_group_id($groupID);
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$member->set_userID($newGroup->get_userID());
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$member->set_time_sent($newGroup->get_time_sent());
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$member->set_level(GroupMember::ADMINISTRATOR);
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$this->insertMember($member);
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return $groupID;
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}
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/**
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* Check whether a group exists or not
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*
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* @param int $id The ID of the target group
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* @return bool TRUE if the group exists / FALSE else
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*/
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public function exists(int $id) : bool {
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return db()->count(
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self::GROUPS_LIST_TABLE,
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"WHERE id = ?",
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array($id)
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) > 0;
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}
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/**
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* Get the visibility level of a group
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*
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* @param int $id The ID of the target group
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* @return int The visibility level of the group
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*/
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public function getVisiblity(int $id) : int {
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$data = db()->select(
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self::GROUPS_LIST_TABLE,
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"WHERE id = ?",
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array($id),
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array("visibility")
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);
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if(count($data) < 1)
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throw new Exception("Group " + $id + " does not exists!");
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return $data[0]["visibility"];
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}
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/**
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* Get and return information about a group
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*
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* @param int $id The ID of the target group
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* @return GroupInfo Information about the group / invalid
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* object in case of failure
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*/
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public function get_info(int $id) : GroupInfo {
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//Query the database
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$info = db()->select(self::GROUPS_LIST_TABLE, "WHERE id = ?", array($id));
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//Check for results
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if(count($info) == 0)
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return new GroupInfo(); //Return invalid object
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//Create and fill GroupInfo object with database entry
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return $this->dbToGroupInfo($info[0]);
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}
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/**
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* Get and return advanced information about a group
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*
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* @param int $id The ID of the target group
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* @return GroupInfo Information about the group / invalid
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* object in case of failure
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*/
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public function get_advanced_info(int $id) : AdvancedGroupInfo {
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//Query the database
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$info = db()->select(self::GROUPS_LIST_TABLE, "WHERE id = ?", array($id));
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//Check for results
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if(count($info) == 0)
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return new AdvancedGroupInfo(); //Return invalid object
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//Create and fill GroupInfo object with database entry
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return $this->dbToAdvancedGroupInfo($info[0]);
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}
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/**
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* Get a group settings
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*
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* @param int $id The ID of the target group
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* @return GroupSettings The settings of the group / invalid
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* GroupSettings object in case of failure
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*/
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public function get_settings(int $id) : GroupSettings {
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//Query the database
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$info = db()->select(self::GROUPS_LIST_TABLE, "WHERE id = ?", array($id));
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//Check for results
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if(count($info) == 0)
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return new GroupSettings(); //Return invalid object
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//Create and fill GroupInfo object with database entry
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return $this->dbToGroupSettings($info[0]);
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}
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/**
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* Set (update) group settings
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*
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* @param GroupSettings $settings The settings to update
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* @return bool TRUE for a success / FALSE
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*/
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public function set_settings(GroupSettings $settings) : bool {
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//Generate database entry
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$modif = $this->GroupSettingsToDB($settings);
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//Apply update
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return db()->updateDB(
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self::GROUPS_LIST_TABLE,
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"id = ?",
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$modif,
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array($settings->get_id()));
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}
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/**
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* Insert a new group member
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*
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* @param GroupMember $member Information about the member to insert
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* @return bool TRUE for a success / FALSE else
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*/
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private function insertMember(GroupMember $member) : bool {
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return db()->addLine(self::GROUPS_MEMBERS_TABLE, array(
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"groups_id" => $member->get_group_id(),
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"user_id" => $member->get_userID(),
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"time_create" => $member->get_time_sent(),
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"level" => $member->get_level()
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));
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}
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/**
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* Update a membership level
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*
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* @param int $userID The ID of the target user
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* @param int $groupID The ID of the related group
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* @param int $level The target level
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* @return bool TRUE for a success / FALSE else
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*/
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private function updateMembershipLevel(int $userID, int $groupID, int $level) : bool {
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return db()->updateDB(
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self::GROUPS_MEMBERS_TABLE,
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"user_id = ? AND groups_id = ?",
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array("level" => $level),
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array($userID, $groupID)
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);
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}
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/**
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* Check whether a user has already a saved membership in a group or not
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*
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* @param int $userID The ID of the target user
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* @param int $groupID The ID of the target group
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* @return bool TRUE if the database includes a membership for the user / FALSE else
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*/
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private function hasMembership(int $userID, int $groupID) : bool {
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return db()->count(
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self::GROUPS_MEMBERS_TABLE,
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"WHERE groups_id = ? AND user_id = ?",
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array($groupID, $userID)) > 0;
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}
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/**
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* Check whether a user received an invitation or not
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*
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* @param int $userID The ID of the user to check
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* @param int $groupID The ID of the related group
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* @return bool TRUE if the user received an invitation / FALSE else
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*/
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public function receivedInvitation(int $userID, int $groupID) : bool {
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return db()->count(
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self::GROUPS_MEMBERS_TABLE,
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"WHERE groups_id = ? AND user_ID = ? AND level = ?",
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array($groupID, $userID, GroupMember::INVITED)
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) > 0;
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}
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/**
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* Respond to a membership invitation
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*
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* @param int $userID The ID of the target user
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* @param int $groupID The ID of the related group
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* @param bool $accept Set wether the user accept the invitation or not
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* @return bool TRUE for a success / FALSE else
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*/
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public function respondInvitation(int $userID, int $groupID, bool $accept) : bool {
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//If the user reject the invitation, delete it
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if(!$accept)
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return $this->deleteInvitation($userID, $groupID);
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//Upgrade the user as member
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return $this->updateMembershipLevel($userID, $groupID, GroupMember::MEMBER);
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}
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/**
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* Delete a membership invitation
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*
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* @param int $userID The ID of the target user
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* @param int $groupID The ID of the related group
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* @return bool TRUE for a success / FALSE else
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*/
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public function deleteInvitation(int $userID, int $groupID) : bool {
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return db()->deleteEntry(
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self::GROUPS_MEMBERS_TABLE,
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"groups_id = ? AND user_id = ? AND level = ?",
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array($groupID, $userID, GroupMember::INVITED)
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);
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}
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/**
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* Get the membership level of a user to a group
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*
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* @param int $userID The ID of the queried user
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* @param int $groupID The ID of the target group
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* @return int The membership level of the user
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*/
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public function getMembershipLevel(int $userID, int $groupID) : int {
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//Check for membership
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if(!$this->hasMembership($userID, $groupID))
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return GroupMember::VISITOR;
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//Fetch the database to get membership
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$results = db()->select(
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self::GROUPS_MEMBERS_TABLE,
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"WHERE groups_id = ? AND user_id = ?",
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array($groupID, $userID),
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array("level")
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);
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//Check for results
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if(count($results) < 0)
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return GroupMember::VISITOR; //Security first
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return $results[0]["level"];
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}
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/**
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* Check whether a user is an administrator of a group
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* or not
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*
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* @param int $userID Requested user ID to check
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* @param int $groupID Requested group to check
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* @return bool TRUE if the user is an admin / FALSE else
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*/
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public function isAdmin(int $userID, int $groupID) : bool {
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return $this->getMembershipLevel($userID, $groupID)
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== GroupMember::ADMINISTRATOR;
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}
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/**
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* Check whether a group is open or not
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*
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* @param int $groupID The ID of the target group
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* @return bool TRUE if the group is open / FALSE else
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*/
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public function isOpen(int $groupID) : bool {
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return db()->count(
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self::GROUPS_LIST_TABLE,
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"WHERE id = ? AND visibility = ?",
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array($groupID, GroupInfo::OPEN_GROUP)) > 0;
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}
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/**
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* Check whether a group is secret or not
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*
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* @param int $groupID The ID of the target group
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* @return bool TRUE if the group is open / FALSE else
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*/
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public function isSecret(int $groupID) : bool {
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return db()->count(
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self::GROUPS_LIST_TABLE,
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"WHERE id = ? AND visibility = ?",
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array($groupID, GroupInfo::SECRET_GROUP)) > 0;
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}
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/**
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* Count the number of members of a group
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*
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* @param int $id The ID of the target group
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* @return int The number of members of the group
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*/
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private function countMembers(int $id) : int {
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return db()->count(self::GROUPS_MEMBERS_TABLE,
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"WHERE groups_id = ?",
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array($id));
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}
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/**
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* Get and return the access level of a user over a group
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*
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* @param int $groupID The ID of the target group
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* @param int $userID The ID of the user
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* @return int The visiblity access level of the user
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*/
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public function getAccessLevel(int $groupID, int $userID) : int {
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if($userID > 0)
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//Get the membership level of the user
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$membership_level = $this->getMembershipLevel($userID, $groupID);
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else
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$membership_level = GroupMember::VISITOR; //Signed out users are all visitors
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//Check if the user is a confirmed member of group
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if($membership_level == GroupMember::ADMINISTRATOR)
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return GroupInfo::ADMIN_ACCESS;
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if($membership_level == GroupMember::MODERATOR)
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return GroupInfo::MODERATOR_ACCESS;
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if($membership_level == GroupMember::MEMBER)
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return GroupInfo::MEMBER_ACCESS;
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//Get the visibility level of the group
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$group_visibility_level = $this->getVisiblity($groupID);
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//If the group is open, everyone has view access
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if($group_visibility_level == GroupInfo::OPEN_GROUP)
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return GroupInfo::VIEW_ACCESS;
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//Else, all pending and invited membership get limited access
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if($membership_level == GroupMember::PENDING ||
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$membership_level == GroupMember::INVITED)
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return GroupInfo::LIMITED_ACCESS;
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//Private groups gives limited access
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if($group_visibility_level == GroupInfo::PRIVATE_GROUP)
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return GroupInfo::LIMITED_ACCESS;
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//Else the user can not see the group
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return GroupInfo::NO_ACCESS;
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}
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/**
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* Delete current group logo (if any)
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*
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* @param int $id The ID of the target group
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* @return bool TRUE if the logo was deleted / FALSE else
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*/
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public function deleteLogo(int $id) : bool {
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//Get the current settings of the group
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$settings = $this->get_settings($id);
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//Check if the group has currently an group logo or not
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if($settings->has_logo()){
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//Delete the previous logo
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if(file_exists($settings->get_logo_sys_path()))
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if(!unlink($settings->get_logo_sys_path()))
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return FALSE;
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//Save new information
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$settings->set_logo("null");
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return $this->set_settings($settings);
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}
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//Success (nothing to be done)
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return TRUE;
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}
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/**
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* Turn a database entry into a GroupInfo object
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*
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* @param array $data Database entry
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* @param GroupInfo $group The object to fill with the information (optionnal)
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* @return GroupInfo Generated object
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*/
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private function dbToGroupInfo(array $data, GroupInfo $info = null) : GroupInfo {
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if($info == null)
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$info = new GroupInfo();
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$info->set_id($data["id"]);
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$info->set_name($data["name"]);
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$info->set_number_members($this->countMembers($info->get_id()));
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$info->set_membership_level($this->getMembershipLevel(userID, $info->get_id()));
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$info->set_visibility($data["visibility"]);
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$info->set_registration_level($data["registration_level"]);
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if($data["path_logo"] != null && $data["path_logo"] != "" && $data["path_logo"] != "null")
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$info->set_logo($data["path_logo"]);
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return $info;
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}
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/**
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* Turn a database group entry into AdvancedGroupInfo object entry
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*
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* @param array $data Database entry
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* @param AdvancedGroupInfo $info Optionnal, fill an existing object
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* instead of creating a new one
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* @return AdvancedGroupInfo Advanced information about the group
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*/
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private function dbToAdvancedGroupInfo(array $data, AdvancedGroupInfo $info = null) : AdvancedGroupInfo {
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if($info == null)
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$info = new AdvancedGroupInfo();
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//Parse basical information about the group
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$this->dbToGroupInfo($data, $info);
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//Parse advanced information
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$info->set_time_create($data["time_create"]);
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return $info;
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}
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/**
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* Turn a database group entry into GroupSettings object
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*
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* @param array $data Database entry
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* @return GroupSettings The settings of the group
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*/
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private function dbToGroupSettings(array $data) : GroupSettings {
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//Parse advanced settings about the group
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$info = new GroupSettings();
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$this->dbToAdvancedGroupInfo($data, $info);
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return $info;
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}
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/**
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* Turn a GroupSettings object into a database entry
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*
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* @param GroupSettings $settings The object to convert
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* @return array Generated database entry
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*/
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private function GroupSettingsToDB(GroupSettings $settings) : array {
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$data = array();
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if($settings->has_name())
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$data["name"] = $settings->get_name();
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if($settings->has_logo())
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$data["path_logo"] = $settings->get_logo();
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if($settings->has_visibility())
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$data["visibility"] = $settings->get_visibility();
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if($settings->has_registration_level())
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$data["registration_level"] = $settings->get_registration_level();
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return $data;
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}
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}
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//Register component
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Components::register("groups", new GroupsComponent()); |