7 files changed, 115 insertions, 15 deletions

diff --git a/application/bookmark/Bookmark.php b/application/bookmark/Bookmark.php
index 83ddab82..90ff5b16 100644
--- a/application/bookmark/Bookmark.php
+++ b/application/bookmark/Bookmark.php
@@ -3,6 +3,7 @@
 namespace Shaarli\Bookmark;
 
 use DateTime;
+use DateTimeInterface;
 use Shaarli\Bookmark\Exception\InvalidBookmarkException;
 
 /**
@@ -42,10 +43,10 @@ class Bookmark
     /** @var bool Set to true if the bookmark is set as sticky */
     protected $sticky;
 
-    /** @var DateTime Creation datetime */
+    /** @var DateTimeInterface Creation datetime */
     protected $created;
 
-    /** @var DateTime Update datetime */
+    /** @var DateTimeInterface datetime */
     protected $updated;
 
     /** @var bool True if the bookmark can only be seen while logged in */
@@ -100,7 +101,7 @@ class Bookmark
             || ! is_int($this->id)
             || empty($this->shortUrl)
             || empty($this->created)
-            || ! $this->created instanceof DateTime
+            || ! $this->created instanceof DateTimeInterface
         ) {
             throw new InvalidBookmarkException($this);
         }
@@ -188,7 +189,7 @@ class Bookmark
     /**
      * Get the Created.
      *
-     * @return DateTime
+     * @return DateTimeInterface
      */
     public function getCreated()
     {
@@ -198,7 +199,7 @@ class Bookmark
     /**
      * Get the Updated.
      *
-     * @return DateTime
+     * @return DateTimeInterface
      */
     public function getUpdated()
     {
@@ -270,7 +271,7 @@ class Bookmark
      * Set the Created.
      * Note: you shouldn't set this manually except for special cases (like bookmark import)
      *
-     * @param DateTime $created
+     * @param DateTimeInterface $created
      *
      * @return Bookmark
      */
@@ -284,7 +285,7 @@ class Bookmark
     /**
      * Set the Updated.
      *
-     * @param DateTime $updated
+     * @param DateTimeInterface $updated
      *
      * @return Bookmark
      */
diff --git a/application/bookmark/BookmarkFileService.php b/application/bookmark/BookmarkFileService.php
index 3b3812af..7439d8d8 100644
--- a/application/bookmark/BookmarkFileService.php
+++ b/application/bookmark/BookmarkFileService.php
@@ -53,7 +53,7 @@ class BookmarkFileService implements BookmarkServiceInterface
     {
         $this->conf = $conf;
         $this->history = $history;
-        $this->pageCacheManager = new PageCacheManager($this->conf->get('resource.page_cache'));
+        $this->pageCacheManager = new PageCacheManager($this->conf->get('resource.page_cache'), $isLoggedIn);
         $this->bookmarksIO = new BookmarkIO($this->conf);
         $this->isLoggedIn = $isLoggedIn;
 
diff --git a/application/container/ContainerBuilder.php b/application/container/ContainerBuilder.php
index c5c4a2c3..199f3f67 100644
--- a/application/container/ContainerBuilder.php
+++ b/application/container/ContainerBuilder.php
@@ -94,7 +94,10 @@ class ContainerBuilder
         };
 
         $container['pageCacheManager'] = function (ShaarliContainer $container): PageCacheManager {
-            return new PageCacheManager($container->conf->get('resource.page_cache'));
+            return new PageCacheManager(
+                $container->conf->get('resource.page_cache'),
+                $container->loginManager->isLoggedIn()
+            );
         };
 
         return $container;
diff --git a/application/front/controllers/DailyController.php b/application/front/controllers/DailyController.php
index 271c0ee2..4a0735aa 100644
--- a/application/front/controllers/DailyController.php
+++ b/application/front/controllers/DailyController.php
@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Shaarli\Front\Controller;
 
 use DateTime;
+use DateTimeImmutable;
 use Shaarli\Bookmark\Bookmark;
 use Slim\Http\Request;
 use Slim\Http\Response;
@@ -18,6 +19,8 @@ use Slim\Http\Response;
  */
 class DailyController extends ShaarliController
 {
+    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).
@@ -88,6 +91,77 @@ class DailyController extends ShaarliController
     }
 
     /**
+     * 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');
+
+        $pageUrl = page_url($this->container->environment);
+        $cache = $this->container->pageCacheManager->getCachePage($pageUrl);
+
+        $cached = $cache->cachedVersion();
+        if (!empty($cached)) {
+            return $response->write($cached);
+        }
+
+        $days = [];
+        foreach ($this->container->bookmarkService->search() as $bookmark) {
+            $day = $bookmark->getCreated()->format('Ymd');
+
+            // Stop iterating after DAILY_RSS_NB_DAYS entries
+            if (count($days) === static::$DAILY_RSS_NB_DAYS && !isset($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 = DateTimeImmutable::createFromFormat(Bookmark::LINK_DATE_FORMAT, $day.'_000000');
+            $dataPerDay[$day] = [
+                'date' => $dayDatetime,
+                'date_rss' => $dayDatetime->format(DateTime::RSS),
+                'date_human' => format_date($dayDatetime, false, true),
+                'absolute_url' => $indexUrl . '/daily?day=' . $day,
+                'links' => [],
+            ];
+
+            foreach ($bookmarks as $key => $bookmark) {
+                $dataPerDay[$day]['links'][$key] = $formatter->format($bookmark);
+
+                // Make permalink URL absolute
+                if ($bookmark->isNote()) {
+                    $dataPerDay[$day]['links'][$key]['url'] = $indexUrl . $bookmark->getUrl();
+                }
+            }
+        }
+
+        $this->assignView('title', $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('index_url', $indexUrl);
+        $this->assignView('page_url', $pageUrl);
+        $this->assignView('hide_timestamps', $this->container->conf->get('privacy.hide_timestamps', false));
+        $this->assignView('days', $dataPerDay);
+
+        $rssContent = $this->render('dailyrss');
+
+        $cache->cache($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
diff --git a/application/http/HttpUtils.php b/application/http/HttpUtils.php
index 2ea9195d..f00c4336 100644
--- a/application/http/HttpUtils.php
+++ b/application/http/HttpUtils.php
@@ -369,7 +369,7 @@ function server_url($server)
  */
 function index_url($server)
 {
-    $scriptname = $server['SCRIPT_NAME'];
+    $scriptname = $server['SCRIPT_NAME'] ?? '';
     if (endsWith($scriptname, 'index.php')) {
         $scriptname = substr($scriptname, 0, -9);
     }
@@ -377,7 +377,7 @@ function index_url($server)
 }
 
 /**
- * Returns the absolute URL of the current script, with the query
+ * Returns the absolute URL of the current script, with current route and query
  *
  * If the resource is "index.php", then it is removed (for better-looking URLs)
  *
@@ -387,10 +387,17 @@ function index_url($server)
  */
 function page_url($server)
 {
+    $scriptname = $server['SCRIPT_NAME'] ?? '';
+    if (endsWith($scriptname, 'index.php')) {
+        $scriptname = substr($scriptname, 0, -9);
+    }
+
+    $route = ltrim($server['REQUEST_URI'] ?? '', $scriptname);
     if (! empty($server['QUERY_STRING'])) {
-        return index_url($server).'?'.$server['QUERY_STRING'];
+        return index_url($server) . $route . '?' . $server['QUERY_STRING'];
     }
-    return index_url($server);
+
+    return index_url($server) . $route;
 }
 
 /**
diff --git a/application/legacy/LegacyLinkDB.php b/application/legacy/LegacyLinkDB.php
index 947005ad..7bf76fd4 100644
--- a/application/legacy/LegacyLinkDB.php
+++ b/application/legacy/LegacyLinkDB.php
@@ -353,7 +353,7 @@ You use the community supported version of the original Shaarli project, by Seba
 
         $this->write();
 
-        $pageCacheManager = new PageCacheManager($pageCacheDir);
+        $pageCacheManager = new PageCacheManager($pageCacheDir, $this->loggedIn);
         $pageCacheManager->invalidateCaches();
     }
 
diff --git a/application/render/PageCacheManager.php b/application/render/PageCacheManager.php
index bd91fe0d..97805c35 100644
--- a/application/render/PageCacheManager.php
+++ b/application/render/PageCacheManager.php
@@ -2,6 +2,8 @@
 
 namespace Shaarli\Render;
 
+use Shaarli\Feed\CachedPage;
+
 /**
  * Cache utilities
  */
@@ -10,9 +12,13 @@ class PageCacheManager
     /** @var string Cache directory */
     protected $pageCacheDir;
 
-    public function __construct(string $pageCacheDir)
+    /** @var bool */
+    protected $isLoggedIn;
+
+    public function __construct(string $pageCacheDir, bool $isLoggedIn)
     {
         $this->pageCacheDir = $pageCacheDir;
+        $this->isLoggedIn = $isLoggedIn;
     }
 
     /**
@@ -42,4 +48,13 @@ class PageCacheManager
         // Purge page cache shared by sessions.
         $this->purgeCachedPages();
     }
+
+    public function getCachePage(string $pageUrl): CachedPage
+    {
+        return new CachedPage(
+            $this->pageCacheDir,
+            $pageUrl,
+            false === $this->isLoggedIn
+        );
+    }
 }