From 28a1c14bf82d9d0a8311f8f18746d0b4cd821314 Mon Sep 17 00:00:00 2001
From: emkael <emkael@tlen.pl>
Date: Fri, 1 Feb 2019 14:38:59 +0100
Subject: Weaponizing cache files

---
 _cron/check-empty-cache-files |  1 -
 _cron/fb-cache-files          |  2 ++
 bin/refresh-fb-cache.php      | 34 ++++++++++++++++++++++++++++++++++
 providers/Facebook.php        | 21 ++++++++++++---------
 4 files changed, 48 insertions(+), 10 deletions(-)
 delete mode 100644 _cron/check-empty-cache-files
 create mode 100644 _cron/fb-cache-files
 create mode 100755 bin/refresh-fb-cache.php

diff --git a/_cron/check-empty-cache-files b/_cron/check-empty-cache-files
deleted file mode 100644
index 41a5938..0000000
--- a/_cron/check-empty-cache-files
+++ /dev/null
@@ -1 +0,0 @@
-10 * * * * find $SITEPATH/cache -size 6c
diff --git a/_cron/fb-cache-files b/_cron/fb-cache-files
new file mode 100644
index 0000000..c6b2cb1
--- /dev/null
+++ b/_cron/fb-cache-files
@@ -0,0 +1,2 @@
+*/10 * * * * $SITEPATH/bin/refresh-fb-cache.php
+10 * * * * find $SITEPATH/cache -size 6c
diff --git a/bin/refresh-fb-cache.php b/bin/refresh-fb-cache.php
new file mode 100755
index 0000000..35c7822
--- /dev/null
+++ b/bin/refresh-fb-cache.php
@@ -0,0 +1,34 @@
+#!/usr/bin/env php
+<?php
+
+$BASEPATH = dirname(__FILE__);
+chdir($BASEPATH);
+
+require_once('../providers/Facebook.php');
+
+$cacheFiles = glob('../cache/facebook.*');
+
+$fileToFetch = NULL;
+$oldestCache = PHP_INT_MAX;
+
+foreach ($cacheFiles as $file) {
+    if (!preg_match('/\.Piwoteka$/', $file)) {
+        $cacheTime = filemtime($file);
+        if ($cacheTime < $oldestCache) {
+            $oldestCache = $cacheTime;
+            $fileToFetch = explode('.', $file);
+            $fileToFetch = $fileToFetch[count($fileToFetch)-1];
+        }
+    }
+}
+
+$filesToFetch = ['Piwoteka', $fileToFetch];
+
+foreach ($filesToFetch as $feed) {
+    $provider = new \Providers\Facebook($feed, ['force' => TRUE]);
+    if (!$provider->get()) {
+        throw new \Exception(sprintf('Feed %s failed to fetch!', $feed));
+    }
+}
+
+?>
diff --git a/providers/Facebook.php b/providers/Facebook.php
index e2afef6..2126189 100644
--- a/providers/Facebook.php
+++ b/providers/Facebook.php
@@ -7,7 +7,17 @@ require_once('Item.php');
 
 class Facebook extends \Providers\HtmlFeed {
 
-    protected $_cacheTimeout = '5 minutes';
+    protected $_cacheTimeout = '300 years';
+
+    public function __construct($feed, $options) {
+        parent::__construct($feed, $options);
+        if (isset($this->_options['dump'])) {
+            $this->_options['force'] = TRUE;
+        }
+        if (isset($this->_options['force'])) {
+            $this->_cacheTimeout = '1 second';
+        }
+    }
 
     protected function _getCachePath() {
         return '../cache/facebook.%s';
@@ -18,14 +28,7 @@ class Facebook extends \Providers\HtmlFeed {
     }
 
     protected function __getUserAgent() {
-        return 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0';
-    }
-
-    protected function _getItems() {
-        if (isset($this->_options['dump'])) {
-            $this->_cacheTimeout = '1 second';
-        }
-        return parent::_getItems();
+        return 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0.1';
     }
 
     protected function _parseFeedContent($tree) {
-- 
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