482 lines
11 KiB
PHP
482 lines
11 KiB
PHP
<?php defined('BLUDIT') or die('Bludit CMS.');
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class dbPosts extends dbJSON
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{
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private $dbFields = array(
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'title'=> array('inFile'=>true, 'value'=>''),
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'content'=> array('inFile'=>true, 'value'=>''),
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'description'=> array('inFile'=>false, 'value'=>''),
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'username'=> array('inFile'=>false, 'value'=>''),
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'status'=> array('inFile'=>false, 'value'=>'draft'), // published, draft, scheduled
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'tags'=> array('inFile'=>false, 'value'=>array()),
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'allowComments'=> array('inFile'=>false, 'value'=>false),
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'date'=> array('inFile'=>false, 'value'=>''),
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'coverImage'=> array('inFile'=>false, 'value'=>''),
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'checksum'=> array('inFile'=>false, 'value'=>'')
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);
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private $numberPosts = array(
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'total'=>0,
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'published'=>0
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);
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function __construct()
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{
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parent::__construct(PATH_DATABASES.'posts.php');
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$this->numberPosts['total'] = count($this->db);
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}
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public function numberPost($total=false)
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{
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if($total) {
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return $this->numberPosts['total'];
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}
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return $this->numberPosts['published'];
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}
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// Returns the database
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public function getDB()
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{
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return $this->db;
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}
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// Return an array with the post's database, FALSE otherwise.
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public function getPostDB($key)
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{
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if($this->postExists($key)) {
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return $this->db[$key];
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}
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return false;
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}
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public function setPostDb($key, $field, $value)
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{
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if($this->postExists($key)) {
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$this->db[$key][$field] = $value;
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}
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return false;
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}
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// Return TRUE if the post exists, FALSE otherwise.
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public function postExists($key)
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{
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return isset($this->db[$key]);
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}
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// Generate a valid Key/Slug.
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public function generateKey($text, $oldKey='')
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{
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if(Text::isEmpty($text)) {
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$text = 'empty';
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}
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$newKey = Text::cleanUrl($text);
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if($newKey===$oldKey) {
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return $newKey;
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}
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// Verify if the key is already been used.
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if( isset($this->db[$newKey]) )
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{
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if( !Text::endsWithNumeric($newKey) ) {
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$newKey = $newKey.'-0';
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}
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while( isset($this->db[$newKey]) ) {
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$newKey++;
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}
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}
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return $newKey;
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}
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public function add($args)
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{
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$dataForDb = array(); // This data will be saved in the database
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$dataForFile = array(); // This data will be saved in the file
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$currentDate = Date::current(DB_DATE_FORMAT);
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// Generate the database key.
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$key = $this->generateKey($args['slug']);
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// The user is always who is loggued.
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$args['username'] = Session::get('username');
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if( Text::isEmpty($args['username']) ) {
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return false;
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}
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// If the date not valid, then set the current date.
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if(!Valid::date($args['date'], DB_DATE_FORMAT)) {
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$args['date'] = $currentDate;
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}
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// Schedule post ?
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if( ($args['date']>$currentDate) && ($args['status']=='published') ) {
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$args['status'] = 'scheduled';
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}
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// Verify arguments with the database fields.
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foreach($this->dbFields as $field=>$options)
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{
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// If the field is in the arguments.
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if( isset($args[$field]) )
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{
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if($field=='tags') {
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$tmpValue = $this->generateTags($args['tags']);
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}
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else {
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// Sanitize if will be saved on database.
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if( !$options['inFile'] ) {
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$tmpValue = Sanitize::html($args[$field]);
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}
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else {
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$tmpValue = $args[$field];
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}
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}
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}
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// Default value if not in the arguments.
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else
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{
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$tmpValue = $options['value'];
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}
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// Check where the field will be written, if in the file or in the database.
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if($options['inFile']) {
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$dataForFile[$field] = Text::firstCharUp($field).': '.$tmpValue;
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}
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else
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{
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// Set type
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settype($tmpValue, gettype($options['value']));
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// Save on database
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$dataForDb[$field] = $tmpValue;
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}
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}
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// Create Hash
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$serialize = serialize($dataForDb+$dataForFile);
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$dataForDb['checksum'] = sha1($serialize);
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// Make the directory.
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if( Filesystem::mkdir(PATH_POSTS.$key) === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to create the directory '.PATH_POSTS.$key);
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return false;
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}
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// Make the index.txt and save the file.
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$data = implode("\n", $dataForFile);
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if( file_put_contents(PATH_POSTS.$key.DS.'index.txt', $data) === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to put the content in the file index.txt');
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return false;
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}
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// Save the database
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$this->db[$key] = $dataForDb;
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// Sort posts before save.
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$this->sortByDate();
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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return false;
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}
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return $key;
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}
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public function edit($args)
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{
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if( $this->delete($args['key']) ) {
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return $this->add($args);
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}
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to delete the post.');
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return false;
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}
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public function delete($key)
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{
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// Post doesn't exist in database.
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if(!$this->postExists($key)) {
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Log::set(__METHOD__.LOG_SEP.'The post does not exist. Key: '.$key);
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}
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// Delete the index.txt file.
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if( Filesystem::rmfile(PATH_POSTS.$key.DS.'index.txt') === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to delete the file index.txt');
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}
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// Delete the directory.
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if( Filesystem::rmdir(PATH_POSTS.$key) === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to delete the directory '.PATH_POSTS.$key);
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}
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// Remove from database.
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unset($this->db[$key]);
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// Save the database.
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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}
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return true;
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}
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// Returns an array with a list of posts keys, filtered by a page number.
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public function getList($pageNumber, $postPerPage, $removeUnpublished=true)
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{
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$totalPosts = $this->numberPosts['total'];
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// Remove the unpublished posts.
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if($removeUnpublished) {
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$this->removeUnpublished();
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$totalPosts = $this->numberPosts['published'];
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}
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$init = (int) $postPerPage * $pageNumber;
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$end = (int) min( ($init + $postPerPage - 1), $totalPosts - 1 );
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$outrange = $init<0 ? true : $init>$end;
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if(!$outrange) {
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return array_slice($this->db, $init, $postPerPage, true);
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}
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return array();
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}
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// Delete all posts from an user.
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public function deletePostsByUser($username)
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{
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foreach($this->db as $key=>$value)
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{
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if($value['username']==$username) {
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unset($this->db[$key]);
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}
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}
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// Save the database.
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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return false;
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}
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return true;
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}
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// Link-up all posts from an user to another user.
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public function linkPostsToUser($oldUsername, $newUsername)
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{
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foreach($this->db as $key=>$value)
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{
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if($value['username']==$oldUsername) {
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$this->db[$key]['username'] = $newUsername;
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}
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}
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// Sort posts before save.
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$this->sortByDate();
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// Save the database.
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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return false;
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}
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return true;
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}
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// Remove unpublished posts, status != published.
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public function removeUnpublished()
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{
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foreach($this->db as $key=>$values)
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{
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if($values['status']!='published') {
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unset($this->db[$key]);
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}
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}
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$this->numberPosts['published'] = count($this->db);
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return true;
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}
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// Return TRUE if there are new posts published, FALSE otherwise.
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public function scheduler()
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{
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// Get current date.
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$currentDate = Date::current(DB_DATE_FORMAT);
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$saveDatabase = false;
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// Check scheduled posts
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foreach($this->db as $postKey=>$values)
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{
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if($values['status']=='scheduled')
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{
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// Publish post.
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if($values['date']<=$currentDate) {
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$this->db[$postKey]['status'] = 'published';
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$saveDatabase = true;
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}
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}
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elseif($values['status']=='published') {
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break;
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}
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}
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// Save the database ?
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if($saveDatabase)
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{
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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return false;
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}
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return true;
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}
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return false;
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}
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// Returns an Array, array('tagSlug'=>'tagName')
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// (string) $tags, tag list separeted by comma.
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public function generateTags($tags)
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{
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$tmp = array();
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$tags = trim($tags);
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if(empty($tags)) {
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return $tmp;
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}
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// Make array
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$tags = explode(',', $tags);
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foreach($tags as $tag)
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{
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$tag = trim($tag);
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$tagKey = Text::cleanUrl($tag);
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$tmp[$tagKey] = $tag;
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}
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return $tmp;
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}
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// Sort posts by date.
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public function sortByDate($HighToLow=true)
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{
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if($HighToLow) {
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uasort($this->db, array($this, 'sortHighToLow'));
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}
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else {
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uasort($this->db, array($this, 'sortLowToHigh'));
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}
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return true;
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}
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private function sortLowToHigh($a, $b) {
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return $a['date']>$b['date'];
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}
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private function sortHighToLow($a, $b) {
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return $a['date']<$b['date'];
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}
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// Return TRUE if there are new posts, FALSE otherwise.
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public function regenerateCli()
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{
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$db = $this->db;
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$allPosts = array();
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$fields = array();
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$currentDate = Date::current(DB_DATE_FORMAT);
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// Generate default fields and values.
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foreach($this->dbFields as $field=>$options) {
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if(!$options['inFile']) {
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$fields[$field] = $options['value'];
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}
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}
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$fields['status'] = CLI_STATUS;
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$fields['date'] = $currentDate;
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$fields['username'] = 'admin';
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// Recovery posts from the first level of directories
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$tmpPaths = Filesystem::listDirectories(PATH_POSTS);
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foreach($tmpPaths as $directory)
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{
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if(file_exists($directory.DS.'index.txt'))
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{
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// The key is the directory name.
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$key = basename($directory);
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// All keys posts
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$allPosts[$key] = true;
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// Create the new entry if not exist on DATABASE.
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if(!isset($this->db[$key])) {
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// New entry on database
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$this->db[$key] = $fields;
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}
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// Create the post from FILE.
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$Post = new Post($key);
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// Update all fields from FILE to DATABASE.
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foreach($fields as $f=>$v)
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{
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// If the field exists on the FILE, update it.
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if($Post->getField($f))
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{
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$valueFromFile = $Post->getField($f);
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if($f=='tags') {
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// Generate tags array.
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$this->db[$key]['tags'] = $this->generateTags($valueFromFile);
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}
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elseif($f=='date') {
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// Validate Date from file
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if(Valid::date($valueFromFile, DB_DATE_FORMAT)) {
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$this->db[$key]['date'] = $valueFromFile;
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if( $valueFromFile > $currentDate ) {
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$this->db[$key]['status'] = 'scheduled';
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}
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}
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}
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else {
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// Sanitize the values from file.
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$this->db[$key][$f] = Sanitize::html($valueFromFile);
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}
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}
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}
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}
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}
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// Remove orphan posts from db, the orphan posts are posts deleted by hand (directory deleted).
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foreach( array_diff_key($db, $allPosts) as $key=>$data ) {
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unset($this->db[$key]);
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}
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// Sort posts before save.
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$this->sortByDate();
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// Save the database.
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if( $this->save() === false ) {
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Log::set(__METHOD__.LOG_SEP.'Error occurred when trying to save the database file.');
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return false;
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}
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return $this->db!=$db;
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}
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}
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