Sanitizing FB feeds

1 files changed, 30 insertions, 27 deletions

diff --git a/providers/Facebook.php b/providers/Facebook.php
index 5eb0181..4f4c76e 100644
--- a/providers/Facebook.php
+++ b/providers/Facebook.php
@@ -33,33 +33,36 @@ class Facebook extends \Providers\HtmlFeed {
             print($tree->html());
         }
         foreach ($tree->find('article') as $header) {
-            $data = json_decode($header->attr()['data-store'], TRUE)['linkdata'];
-            $data = json_decode(explode('page_insights.', $data)[1], TRUE);
-            $data = array_filter(
-                $data,
-                function($a) { return isset($a['post_context']); }
-            );
-            $data = array_pop($data);
-            $data = $data['post_context'];
-            $key = ((array)($data['story_fbid']))[0];
-            $texts = [];
-            foreach ($header->find('p, h3') as $paragraph) {
-                $texts[] = utf8_decode($paragraph->text());
-            }
-            if (isset($this->_options['dump'])) {
-                print_r($data);
-                print($key);
-                print(PHP_EOL);
-                print_r($texts);
-                print(PHP_EOL);
-            }
-            if (count($texts)) {
-                $items[$key] = [
-                    'id' => $key,
-                    'time' => $data['publish_time'],
-                    'content' => $header->html(),
-                    'texts' => $texts
-                ];
+            $data = json_decode($header->attr()['data-store'], TRUE);
+            if (isset($data['linkdata'])) {
+                $data = $data['linkdata'];
+                $data = json_decode(explode('page_insights.', $data)[1], TRUE);
+                $data = array_filter(
+                    $data,
+                    function($a) { return isset($a['post_context']); }
+                );
+                $data = array_pop($data);
+                $data = $data['post_context'];
+                $key = ((array)($data['story_fbid']))[0];
+                $texts = [];
+                foreach ($header->find('p, h3') as $paragraph) {
+                    $texts[] = utf8_decode($paragraph->text());
+                }
+                if (isset($this->_options['dump'])) {
+                    print_r($data);
+                    print($key);
+                    print(PHP_EOL);
+                    print_r($texts);
+                    print(PHP_EOL);
+                }
+                if (count($texts)) {
+                    $items[$key] = [
+                        'id' => $key,
+                        'time' => $data['publish_time'],
+                        'content' => $header->html(),
+                        'texts' => $texts
+                    ];
+                }
             }
         }
         if (isset($this->_options['dump'])) {