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587 lines
20 KiB
587 lines
20 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Dropbox module for Chamilo
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* Classes for the dropbox module.
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*
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* 3 classes have been defined:
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* - Dropbox_Work:
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* . id
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* . uploader_id => who sent it
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* . filename => name of file stored on the server
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* . filesize
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* . title => name of file returned to user. This is the original name of the file
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* except when the original name contained spaces. In that case the spaces
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* will be replaced by _
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* . description
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* . author
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* . upload_date => date when file was first sent
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* . last_upload_date => date when file was last sent
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* . isOldWork => has the work already been uploaded before
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*
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* . feedback_date => date of most recent feedback
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* . feedback => feedback text (or HTML?)
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*
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* - Dropbox_SentWork extends Dropbox_Work
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* . recipients => array of ["id"]["name"] lists the recipients of the work
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*
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* - Dropbox_Person:
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* . userId
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* . receivedWork => array of Dropbox_Work objects
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* . sentWork => array of Dropbox_SentWork objects
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* . isCourseTutor
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* . isCourseAdmin
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* . _orderBy => private property used for determining the field by which the works have to be ordered
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*
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* @version 1.30
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*
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* @copyright 2004
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* @author Jan Bols <jan@ivpv.UGent.be>
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* with contributions by René Haentjens <rene.haentjens@UGent.be>
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*/
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class Dropbox_Work
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{
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public $id;
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public $uploader_id;
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public $filename;
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public $filesize;
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public $title;
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public $description;
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public $author;
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public $upload_date;
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public $last_upload_date;
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public $isOldWork;
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public $feedback_date;
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public $feedback;
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/**
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* Constructor calls private functions to create a new work or retreive an existing work from DB
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* depending on the number of parameters.
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*
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* @param int $arg1
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* @param string $arg2
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* @param string $arg3
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* @param string $arg4
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* @param string $arg5
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* @param int $arg6
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*/
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public function __construct($arg1, $arg2 = null, $arg3 = null, $arg4 = null, $arg5 = null, $arg6 = null)
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{
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if (func_num_args() > 1) {
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$this->createNewWork($arg1, $arg2, $arg3, $arg4, $arg5, $arg6);
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} else {
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$this->createExistingWork($arg1);
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}
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}
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/**
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* private function creating a new work object.
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*
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* @param int $uploader_id
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* @param string $title
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* @param string $description
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* @param string $author
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* @param string $filename
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* @param int $filesize
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*
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* @todo $author was originally a field but this has now been replaced by the first and lastname of the uploader (to prevent anonymous uploads)
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* As a consequence this parameter can be removed
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*/
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public function createNewWork($uploader_id, $title, $description, $author, $filename, $filesize)
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{
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// Fill in the properties
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$this->uploader_id = (int) $uploader_id;
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$this->filename = $filename;
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$this->filesize = $filesize;
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$this->title = $title;
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$this->description = $description;
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$this->author = $author;
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$this->last_upload_date = api_get_utc_datetime();
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$course_id = api_get_course_int_id();
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// Check if object exists already. If it does, the old object is used
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// with updated information (authors, description, upload_date)
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$this->isOldWork = false;
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$sql = 'SELECT id, upload_date
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FROM '.Database::get_course_table(TABLE_DROPBOX_FILE)."
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WHERE
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c_id = $course_id AND
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filename = '".Database::escape_string($this->filename)."'";
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$result = Database::query($sql);
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$res = Database::fetch_array($result);
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if ($res) {
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$this->isOldWork = true;
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}
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// Insert or update the dropbox_file table and set the id property
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if ($this->isOldWork) {
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$this->id = $res['id'];
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$this->upload_date = $res['upload_date'];
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$params = [
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'filesize' => $this->filesize,
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'title' => $this->title,
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'description' => $this->description,
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'author' => $this->author,
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'last_upload_date' => $this->last_upload_date,
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'session_id' => api_get_session_id(),
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];
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Database::update(
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Database::get_course_table(TABLE_DROPBOX_FILE),
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$params,
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['c_id = ? AND id = ?' => [$course_id, $this->id]]
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);
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} else {
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$this->upload_date = $this->last_upload_date;
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$params = [
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'c_id' => $course_id,
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'uploader_id' => $this->uploader_id,
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'filename' => $this->filename,
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'filesize' => $this->filesize,
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'title' => $this->title,
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'description' => $this->description,
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'author' => $this->author,
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'upload_date' => $this->upload_date,
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'last_upload_date' => $this->last_upload_date,
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'session_id' => api_get_session_id(),
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'cat_id' => 0,
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];
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$this->id = Database::insert(Database::get_course_table(TABLE_DROPBOX_FILE), $params);
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if ($this->id) {
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$sql = 'UPDATE '.Database::get_course_table(TABLE_DROPBOX_FILE)." SET id = iid
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WHERE iid = {$this->id}";
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Database::query($sql);
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}
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}
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$sql = 'SELECT count(file_id) as count
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FROM '.Database::get_course_table(TABLE_DROPBOX_PERSON)."
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WHERE c_id = $course_id AND file_id = ".intval($this->id).' AND user_id = '.$this->uploader_id;
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$result = Database::query($sql);
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$row = Database::fetch_array($result);
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if (0 == $row['count']) {
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// Insert entries into person table
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$sql = 'INSERT INTO '.Database::get_course_table(TABLE_DROPBOX_PERSON)." (c_id, file_id, user_id)
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VALUES ($course_id, ".intval($this->id).' , '.intval($this->uploader_id).')';
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Database::query($sql);
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}
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}
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/**
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* private function creating existing object by retreiving info from db.
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*
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* @param int $id
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*/
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public function createExistingWork($id)
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{
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$course_id = api_get_course_int_id();
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$action = isset($_GET['action']) ? $_GET['action'] : null;
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// Do some sanity checks
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$id = intval($id);
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// Get the data from DB
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$sql = 'SELECT uploader_id, filename, filesize, title, description, author, upload_date, last_upload_date, cat_id
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FROM '.Database::get_course_table(TABLE_DROPBOX_FILE)."
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WHERE c_id = $course_id AND id = ".$id.'';
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$result = Database::query($sql);
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$res = Database::fetch_array($result, 'ASSOC');
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// Check if uploader is still in Chamilo system
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$uploader_id = stripslashes($res['uploader_id']);
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$userInfo = api_get_user_info($uploader_id);
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if (!$userInfo) {
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//deleted user
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$this->uploader_id = -1;
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} else {
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$this->uploader_id = $uploader_id;
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}
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// Fill in properties
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$this->id = $id;
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$this->filename = stripslashes($res['filename']);
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$this->filesize = stripslashes($res['filesize']);
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$this->title = stripslashes($res['title']);
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$this->description = stripslashes($res['description']);
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$this->author = stripslashes($res['author']);
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$this->upload_date = stripslashes($res['upload_date']);
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$this->last_upload_date = stripslashes($res['last_upload_date']);
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$this->category = $res['cat_id'];
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// Getting the feedback on the work.
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if ('viewfeedback' == $action && $this->id == $_GET['id']) {
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$feedback2 = [];
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$sql = 'SELECT * FROM '.Database::get_course_table(TABLE_DROPBOX_FEEDBACK)."
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WHERE c_id = $course_id AND file_id='".$id."'
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ORDER BY feedback_id ASC";
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$result = Database::query($sql);
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while ($row_feedback = Database::fetch_array($result)) {
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$row_feedback['feedback'] = Security::remove_XSS($row_feedback['feedback']);
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$feedback2[] = $row_feedback;
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}
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$this->feedback2 = $feedback2;
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}
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}
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/**
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* @return bool
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*/
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public function updateFile()
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{
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$course_id = api_get_course_int_id();
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if (empty($this->id) || empty($course_id)) {
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return false;
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}
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$params = [
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'uploader_id' => $this->uploader_id,
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'filename' => $this->filename,
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'filesize' => $this->filesize,
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'title' => $this->title,
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'description' => $this->description,
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'author' => $this->author,
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'upload_date' => $this->upload_date,
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'last_upload_date' => $this->last_upload_date,
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'session_id' => api_get_session_id(),
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];
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Database::update(
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Database::get_course_table(TABLE_DROPBOX_FILE),
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$params,
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['c_id = ? AND id = ?' => [$course_id, $this->id]]
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);
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return true;
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}
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}
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class Dropbox_SentWork extends Dropbox_Work
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{
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public $recipients; //array of ['id']['name'] arrays
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/**
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* Constructor calls private functions to create a new work or retreive an existing work from DB
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* depending on the number of parameters.
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*
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* @param int $arg1
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* @param string $arg2
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* @param string $arg3
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* @param string $arg4
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* @param string $arg5
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* @param int $arg6
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* @param array $arg7
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*/
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public function __construct($arg1, $arg2 = null, $arg3 = null, $arg4 = null, $arg5 = null, $arg6 = null, $arg7 = null)
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{
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if (func_num_args() > 1) {
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$this->createNewSentWork($arg1, $arg2, $arg3, $arg4, $arg5, $arg6, $arg7);
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} else {
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$this->createExistingSentWork($arg1);
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}
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}
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/**
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* private function creating a new SentWork object.
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*
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* @param int $uploader_id
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* @param string $title
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* @param string $description
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* @param string $author
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* @param string $filename
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* @param int $filesize
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* @param array $recipient_ids
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*/
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public function createNewSentWork($uploader_id, $title, $description, $author, $filename, $filesize, $recipient_ids)
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{
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$_course = api_get_course_info();
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// Call constructor of Dropbox_Work object
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parent::__construct(
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$uploader_id,
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$title,
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$description,
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$author,
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$filename,
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$filesize
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);
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$course_id = api_get_course_int_id();
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// Do sanity checks on recipient_ids array & property fillin
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// The sanity check for ex-coursemembers is already done in base constructor
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$uploader_id = (int) $uploader_id;
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$justSubmit = false;
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if (is_int($recipient_ids)) {
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$justSubmit = true;
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$recipient_ids = [$recipient_ids + $this->id];
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} elseif (0 == count($recipient_ids)) {
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$justSubmit = true;
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$recipient_ids = [$uploader_id];
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}
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if (!is_array($recipient_ids) || 0 == count($recipient_ids)) {
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exit(get_lang('An error has occured. Please contact your system administrator.').' (code 209)');
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}
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foreach ($recipient_ids as $rec) {
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if (empty($rec)) {
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continue;
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}
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//this check is done when validating submitted data
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$this->recipients[] = ['id' => $rec];
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}
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$table_post = Database::get_course_table(TABLE_DROPBOX_POST);
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$table_person = Database::get_course_table(TABLE_DROPBOX_PERSON);
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$session_id = api_get_session_id();
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$user = api_get_user_id();
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$now = api_get_utc_datetime();
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$mailId = get_mail_id_base();
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// Insert data in dropbox_post and dropbox_person table for each recipient
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foreach ($this->recipients as $rec) {
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$file_id = (int) $this->id;
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$user_id = (int) $rec['id'];
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$sql = "INSERT INTO $table_post (c_id, file_id, dest_user_id, session_id, feedback_date, cat_id)
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VALUES ($course_id, $file_id, $user_id, $session_id, '$now', 0)";
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Database::query($sql);
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// If work already exists no error is generated
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/*
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* Poster is already added when work is created - not so good to split logic.
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*/
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if ($user_id != $user) {
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// Insert entries into person table
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$sql = "INSERT INTO $table_person (c_id, file_id, user_id)
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VALUES ($course_id, $file_id, $user_id)";
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// Do not add recipient in person table if mailing zip or just upload.
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if (!$justSubmit) {
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Database::query($sql); // If work already exists no error is generated
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}
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}
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// Update item_property table for each recipient
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if (($ownerid = $this->uploader_id) > $mailId) {
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$ownerid = getUserOwningThisMailing($ownerid);
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}
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if (($recipid = $rec['id']) > $mailId) {
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$recipid = $ownerid; // mailing file recipient = mailing id, not a person
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}
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api_item_property_update(
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$_course,
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TOOL_DROPBOX,
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$this->id,
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'DropboxFileAdded',
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$ownerid,
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null,
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$recipid
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);
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}
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}
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/**
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* private function creating existing object by retreiving info from db.
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*
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* @param int $id
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*/
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public function createExistingSentWork($id)
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{
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$id = (int) $id;
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$course_id = api_get_course_int_id();
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// Call constructor of Dropbox_Work object
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parent::__construct($id);
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// Fill in recipients array
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$this->recipients = [];
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$sql = 'SELECT dest_user_id, feedback_date, feedback
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FROM '.Database::get_course_table(TABLE_DROPBOX_POST)."
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WHERE c_id = $course_id AND file_id = ".intval($id);
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$result = Database::query($sql);
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while ($res = Database::fetch_array($result, 'ASSOC')) {
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// Check for deleted users
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$dest_user_id = $res['dest_user_id'];
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$user_info = api_get_user_info($dest_user_id);
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if (!$user_info) {
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$this->recipients[] = ['id' => -1, 'name' => get_lang('Unknown', '')];
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} else {
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$this->recipients[] = [
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'id' => $dest_user_id,
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'name' => $user_info['complete_name'],
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'user_id' => $dest_user_id,
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'feedback_date' => $res['feedback_date'],
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'feedback' => $res['feedback'],
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];
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}
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}
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}
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}
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class Dropbox_Person
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{
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// The receivedWork and the sentWork arrays are sorted.
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public $receivedWork; // an array of Dropbox_Work objects
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public $sentWork; // an array of Dropbox_SentWork objects
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public $userId = 0;
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public $isCourseAdmin = false;
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public $isCourseTutor = false;
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public $_orderBy = ''; // private property that determines by which field
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/**
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* Constructor for recreating the Dropbox_Person object.
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*
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* @param int $userId
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* @param bool $isCourseAdmin
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* @param bool $isCourseTutor
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*/
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public function __construct($userId, $isCourseAdmin, $isCourseTutor)
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{
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$course_id = api_get_course_int_id();
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// Fill in properties
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$this->userId = $userId;
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$this->isCourseAdmin = $isCourseAdmin;
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$this->isCourseTutor = $isCourseTutor;
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$this->receivedWork = [];
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$this->sentWork = [];
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// Note: perhaps include an ex coursemember check to delete old files
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$session_id = api_get_session_id();
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$condition_session = api_get_session_condition($session_id);
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$post_tbl = Database::get_course_table(TABLE_DROPBOX_POST);
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$person_tbl = Database::get_course_table(TABLE_DROPBOX_PERSON);
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$file_tbl = Database::get_course_table(TABLE_DROPBOX_FILE);
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// Find all entries where this person is the recipient
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$sql = "SELECT DISTINCT r.file_id, r.cat_id
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FROM $post_tbl r
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INNER JOIN $person_tbl p
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ON (r.file_id = p.file_id AND r.c_id = p.c_id)
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WHERE
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r.c_id = $course_id AND
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p.user_id = ".intval($this->userId).' AND
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r.dest_user_id = '.intval($this->userId)." $condition_session ";
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$result = Database::query($sql);
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while ($res = Database::fetch_array($result)) {
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$temp = new Dropbox_Work($res['file_id']);
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$temp->category = $res['cat_id'];
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$this->receivedWork[] = $temp;
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}
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// Find all entries where this person is the sender/uploader
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$sql = "SELECT DISTINCT f.iid
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FROM $file_tbl f
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INNER JOIN $person_tbl p
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ON (f.iid = p.file_id AND f.c_id = p.c_id)
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WHERE
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f.c_id = $course_id AND
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f.uploader_id = ".intval($this->userId).' AND
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p.user_id = '.intval($this->userId)."
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$condition_session
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";
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$result = Database::query($sql);
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while ($res = Database::fetch_array($result)) {
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$this->sentWork[] = new Dropbox_SentWork($res['iid']);
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}
|
|
}
|
|
|
|
/**
|
|
* Deletes all the received categories and work of this person.
|
|
*
|
|
* @param int $id
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function deleteReceivedWorkFolder($id)
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
|
|
$id = intval($id);
|
|
$sql = 'DELETE FROM '.Database::get_course_table(TABLE_DROPBOX_FILE)."
|
|
WHERE c_id = $course_id AND cat_id = '".$id."' ";
|
|
Database::query($sql);
|
|
|
|
$sql = 'DELETE FROM '.Database::get_course_table(TABLE_DROPBOX_CATEGORY)."
|
|
WHERE c_id = $course_id AND cat_id = '".$id."' ";
|
|
Database::query($sql);
|
|
|
|
$sql = 'DELETE FROM '.Database::get_course_table(TABLE_DROPBOX_POST)."
|
|
WHERE c_id = $course_id AND cat_id = '".$id."' ";
|
|
Database::query($sql);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Deletes a received dropbox file of this person with id=$id.
|
|
*
|
|
* @param int $id
|
|
*/
|
|
public function deleteReceivedWork($id)
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
$id = (int) $id;
|
|
|
|
// index check
|
|
$found = false;
|
|
foreach ($this->receivedWork as $w) {
|
|
if ($w->id == $id) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!$found) {
|
|
if (!$this->deleteReceivedWorkFolder($id)) {
|
|
exit(get_lang('An error has occured. Please contact your system administrator.').' (code 216)');
|
|
}
|
|
}
|
|
// Delete entries in person table concerning received works
|
|
$sql = "DELETE FROM ".Database::get_course_table(TABLE_DROPBOX_PERSON)."
|
|
WHERE c_id = $course_id AND user_id = '".$this->userId."' AND file_id ='".$id."'";
|
|
Database::query($sql);
|
|
removeUnusedFiles(); // Check for unused files
|
|
}
|
|
|
|
/**
|
|
* Deletes a sent dropbox file of this person with id=$id.
|
|
*
|
|
* @param int $id
|
|
*/
|
|
public function deleteSentWork($id)
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
|
|
$id = (int) $id;
|
|
|
|
// index check
|
|
$found = false;
|
|
foreach ($this->sentWork as $w) {
|
|
if ($w->id == $id) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!$found) {
|
|
if (!$this->deleteReceivedWorkFolder($id)) {
|
|
exit(get_lang('An error has occured. Please contact your system administrator.').' (code 219)');
|
|
}
|
|
}
|
|
//$file_id = $this->sentWork[$index]->id;
|
|
// Delete entries in person table concerning sent works
|
|
$sql = 'DELETE FROM '.Database::get_course_table(TABLE_DROPBOX_PERSON)."
|
|
WHERE c_id = $course_id AND user_id='".$this->userId."' AND file_id='".$id."'";
|
|
Database::query($sql);
|
|
removeMoreIfMailing($id);
|
|
removeUnusedFiles(); // Check for unused files
|
|
}
|
|
}
|
|
|