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<?php
declare(strict_types=1);
namespace Shaarli\Front\Controller\Visitor;
use DateTime;
use Shaarli\Bookmark\Bookmark;
use Shaarli\Helper\DailyPageHelper;
use Shaarli\Render\TemplatePage;
use Slim\Http\Request;
use Slim\Http\Response;
/**
* Class DailyController
*
* Slim controller used to render the daily page.
*/
class DailyController extends ShaarliVisitorController
{
public static $DAILY_RSS_NB_DAYS = 8;
/**
* Controller displaying all bookmarks published in a single day.
* It take a `day` date query parameter (format YYYYMMDD).
*/
public function index(Request $request, Response $response): Response
{
$type = DailyPageHelper::extractRequestedType($request);
$format = DailyPageHelper::getFormatByType($type);
$latestBookmark = $this->container->bookmarkService->getLatest();
$dateTime = DailyPageHelper::extractRequestedDateTime($type, $request->getQueryParam($type), $latestBookmark);
$start = DailyPageHelper::getStartDateTimeByType($type, $dateTime);
$end = DailyPageHelper::getEndDateTimeByType($type, $dateTime);
$dailyDesc = DailyPageHelper::getDescriptionByType($type, $dateTime);
$linksToDisplay = $this->container->bookmarkService->findByDate(
$start,
$end,
$previousDay,
$nextDay
);
$formatter = $this->container->formatterFactory->getFormatter();
$formatter->addContextData('base_path', $this->container->basePath);
// We pre-format some fields for proper output.
foreach ($linksToDisplay as $key => $bookmark) {
$linksToDisplay[$key] = $formatter->format($bookmark);
// This page is a bit specific, we need raw description to calculate the length
$linksToDisplay[$key]['formatedDescription'] = $linksToDisplay[$key]['description'];
$linksToDisplay[$key]['description'] = $bookmark->getDescription();
}
$data = [
'linksToDisplay' => $linksToDisplay,
'dayDate' => $start,
'day' => $start->getTimestamp(),
'previousday' => $previousDay ? $previousDay->format($format) : '',
'nextday' => $nextDay ? $nextDay->format($format) : '',
'dayDesc' => $dailyDesc,
'type' => $type,
'localizedType' => $this->translateType($type),
];
// Hooks are called before column construction so that plugins don't have to deal with columns.
$this->executePageHooks('render_daily', $data, TemplatePage::DAILY);
$data['cols'] = $this->calculateColumns($data['linksToDisplay']);
$this->assignAllView($data);
$mainTitle = $this->container->conf->get('general.title', 'Shaarli');
$this->assignView(
'pagetitle',
$data['localizedType'] . ' - ' . $data['dayDesc'] . ' - ' . $mainTitle
);
return $response->write($this->render(TemplatePage::DAILY));
}
/**
* Daily RSS feed: 1 RSS entry per day giving all the bookmarks on that day.
* Gives the last 7 days (which have bookmarks).
* This RSS feed cannot be filtered and does not trigger plugins yet.
*/
public function rss(Request $request, Response $response): Response
{
$response = $response->withHeader('Content-Type', 'application/rss+xml; charset=utf-8');
$type = DailyPageHelper::extractRequestedType($request);
$cacheDuration = DailyPageHelper::getCacheDatePeriodByType($type);
$pageUrl = page_url($this->container->environment);
$cache = $this->container->pageCacheManager->getCachePage($pageUrl, $cacheDuration);
$cached = $cache->cachedVersion();
if (!empty($cached)) {
return $response->write($cached);
}
$days = [];
$format = DailyPageHelper::getFormatByType($type);
$length = DailyPageHelper::getRssLengthByType($type);
foreach ($this->container->bookmarkService->search() as $bookmark) {
$day = $bookmark->getCreated()->format($format);
// Stop iterating after DAILY_RSS_NB_DAYS entries
if (count($days) === $length && !isset($days[$day])) {
break;
}
$days[$day][] = $bookmark;
}
// Build the RSS feed.
$indexUrl = escape(index_url($this->container->environment));
$formatter = $this->container->formatterFactory->getFormatter();
$formatter->addContextData('index_url', $indexUrl);
$dataPerDay = [];
/** @var Bookmark[] $bookmarks */
foreach ($days as $day => $bookmarks) {
$dayDateTime = DailyPageHelper::extractRequestedDateTime($type, (string) $day);
$endDateTime = DailyPageHelper::getEndDateTimeByType($type, $dayDateTime);
// We only want the RSS entry to be published when the period is over.
if (new DateTime() < $endDateTime) {
continue;
}
$dataPerDay[$day] = [
'date' => $endDateTime,
'date_rss' => $endDateTime->format(DateTime::RSS),
'date_human' => DailyPageHelper::getDescriptionByType($type, $dayDateTime, false),
'absolute_url' => $indexUrl . 'daily?' . $type . '=' . $day,
'links' => [],
];
foreach ($bookmarks as $key => $bookmark) {
$dataPerDay[$day]['links'][$key] = $formatter->format($bookmark);
// Make permalink URL absolute
if ($bookmark->isNote()) {
$dataPerDay[$day]['links'][$key]['url'] = rtrim($indexUrl, '/') . $bookmark->getUrl();
}
}
}
$this->assignAllView([
'title' => $this->container->conf->get('general.title', 'Shaarli'),
'index_url' => $indexUrl,
'page_url' => $pageUrl,
'hide_timestamps' => $this->container->conf->get('privacy.hide_timestamps', false),
'days' => $dataPerDay,
'type' => $type,
'localizedType' => $this->translateType($type),
]);
$rssContent = $this->render(TemplatePage::DAILY_RSS);
$cache->cache($rssContent);
return $response->write($rssContent);
}
/**
* We need to spread the articles on 3 columns.
* did not want to use a JavaScript lib like http://masonry.desandro.com/
* so I manually spread entries with a simple method: I roughly evaluate the
* height of a div according to title and description length.
*/
protected function calculateColumns(array $links): array
{
// Entries to display, for each column.
$columns = [[], [], []];
// Rough estimate of columns fill.
$fill = [0, 0, 0];
foreach ($links as $link) {
// Roughly estimate length of entry (by counting characters)
// Title: 30 chars = 1 line. 1 line is 30 pixels height.
// Description: 836 characters gives roughly 342 pixel height.
// This is not perfect, but it's usually OK.
$length = strlen($link['title'] ?? '') + (342 * strlen($link['description'] ?? '')) / 836;
if (! empty($link['thumbnail'])) {
$length += 100; // 1 thumbnails roughly takes 100 pixels height.
}
// Then put in column which is the less filled:
$smallest = min($fill); // find smallest value in array.
$index = array_search($smallest, $fill); // find index of this smallest value.
array_push($columns[$index], $link); // Put entry in this column.
$fill[$index] += $length;
}
return $columns;
}
protected function translateType($type): string
{
return [
t('day') => t('Daily'),
t('week') => t('Weekly'),
t('month') => t('Monthly'),
][t($type)] ?? t('Daily');
}
}
|
