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240 lines
5.8 KiB
240 lines
5.8 KiB
<?php
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// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
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//
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// All Rights Reserved. See copyright.txt for details and a complete list of authors.
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// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
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// $Id$
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use Tiki\FileGallery;
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// Required path: /lib/core/Feed
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//
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// Programmer: Robert Plummer
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//
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// Purpose: The base class reused in FutureLink, PastLink and others
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abstract class Feed_Abstract
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{
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public $name = "";
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public $items = [];
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public $item = [];
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public $contents = [];
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public $type = "";
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public $isFileGal = false;
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public $version = "0.0";
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public $encoding = "";
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public function __construct($name = "")
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{
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if (empty($name)) {
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$name = "http://" . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
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$name = explode('/', $name);
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array_pop($name);
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$name = implode('/', $name);
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} else {
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$name = str_replace("http://", "", $name);
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$name = str_replace("https://", "", $name);
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$name = explode('/', $name);
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$name = array_shift($name);
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}
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$this->name = $this->type . "_" . $name;
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}
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public function getItems()
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{
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$contents = $this->getContents();
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if (empty($contents->entry)) {
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return [];
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}
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return $contents->entry;
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}
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public function listItemNames()
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{
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$result = [];
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foreach ($this->getItems() as $item) {
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if (! empty($item->name)) {
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$result[] = addslashes(htmlspecialchars($item->name));
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}
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}
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return $result;
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}
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public function getItem($name)
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{
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foreach ($this->getItems() as $item) {
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if ($name == $item->name) {
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return $item;
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}
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}
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return [];
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}
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public function replace()
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{
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}
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public function setEncoding($contents)
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{
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if (is_array($contents)) {
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throw new Exception('die');
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}
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$this->encoding = mb_detect_encoding($contents, "ASCII, UTF-8, ISO-8859-1");
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}
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private function open()
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{
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if ($this->isFileGal == true) {
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$contents = FileGallery\File::filename($this->name)->data();
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} else {
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$contents = TikiLib::lib("cache")->getCached($this->name, get_class($this));
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}
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$this->setEncoding($contents);
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$contents = json_decode($contents);
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if (empty($contents)) {
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return [];
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}
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return $contents;
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}
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private function save($contents)
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{
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$contents = json_encode($contents);
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if ($this->isFileGal == true) {
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//TODO: abstract
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FileGallery\File::filename($this->name)
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->setParam('description', '')
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->replace($contents);
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} else {
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//TODO: abstract
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TikiLib::lib("cache")->cacheItem($this->name, $contents, get_class($this));
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}
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return $this;
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}
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public function getContents()
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{
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global $tikilib;
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$contents = $this->open();
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if (! empty($contents)) {
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return $contents;
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}
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//at this point contents is empty, so lets fill it
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$this->replace();
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$contents = $this->open();
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return $contents;
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}
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public function delete()
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{
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global $tikilib;
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if ($this->isFileGal == true) {
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FileGallery\File::filename($this->name)->delete();
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} else {
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TikiLib::lib("cache")->empty_type_cache(get_class($this));
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}
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}
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public function appendToContents(&$contents, $items)
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{
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if (isset($items->feed->entry)) {
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$contents->entry[] = $items->feed->entry;
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} elseif (isset($items)) {
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$contents->entry[] = $items;
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}
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}
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public function addItem($item)
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{
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global $tikilib;
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$contents = $this->open();
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if (empty($contents)) {
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$contents = new Feed_Contents($this->type);
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}
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//this allows us to intercept the contents and do things like check the validity of the content being appended to the contents
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$this->appendToContents($contents, $item);
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$this->save($contents);
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return $this;
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}
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public function feed($origin = '')
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{
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global $tikilib;
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$contents = $this->getContents();
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//TODO: convert to actual object
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$feed = new Feed_Container(
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$this->version,
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$this->encoding, //we get this from the above call to open
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$contents,
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(! empty($origin) ? $origin : $tikilib->tikiUrl() . 'tiki-feed.php'),
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$this->type
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);
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return $feed;
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}
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public function listArchives()
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{
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$archives = [];
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if ($this->isFileGal == true) {
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$file = FileGallery\File::filename($this->name);
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foreach ($file->listArchives() as $archive) {
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$archive = $this->open();
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$archives[$archive->feed->date] = $archive->feed->entry;
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}
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}
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return $archives;
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}
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public function getItemsFromDate($date)
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{
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$archives = $this->listArchives();
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$archive = $archives[$date];
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return $archive;
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}
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public function getItemFromDate($name, $date)
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{
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$archive = $this->getItemsFromDate($date);
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foreach ($archive as $item) {
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if ($name == $item->name) {
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return $item;
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}
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}
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}
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public function getItemFromDates($name)
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{
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$archives = [];
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foreach ($this->listArchives() as $archive) {
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foreach ($archive as $item) {
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if ($name == $item->name) {
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$archives[] = $item;
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}
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}
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}
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return $archives;
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}
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}
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