[InstituteForTheStudyOfWarBridge] Add bridge (#2984)

bridges/InstituteForTheStudyOfWarBridge.php

@@ -0,0 +1,64 @@
+<?php
+
+class InstituteForTheStudyOfWarBridge extends BridgeAbstract
+{
+    const MAINTAINER = 'sqrtminusone';
+    const NAME = 'Institute for the Study of War';
+    const URI = 'https://www.understandingwar.org';
+
+    const CACHE_TIMEOUT = 3600; // 1 hour
+    const DESCRIPTION = 'Recent publications of the ISW.';
+
+    const PARAMETERS = [
+        '' => [
+            'searchURL' => [
+                'name' => 'Filter URL',
+                'required' => false,
+                'title' => 'Set a filter on https://www.understandingwar.org/publications and copy the URL parameters.'
+            ],
+        ]
+    ];
+
+    public function collectData()
+    {
+        $filter = $this->getInput('searchURL');
+        $html = getSimpleHTMLDOM(self::URI . '/publications?' . $filter);
+        $entries = $html->find('.view-content', 0);
+        foreach ($entries->find('.views-row') as $entry) {
+            $this->items[] = $this->processEntry($entry);
+        }
+    }
+
+    private function processEntry($entry)
+    {
+        $h2 = $entry->find('h2', 0);
+        $title = $h2->innertext;
+        $uri = $h2->find('a', 0)->href;
+
+        $date_span = $entry->find('span.datespan', 0);
+        list($date_string, $user) = explode('-', $date_span->innertext);
+        $date = DateTime::createFromFormat('F d, Y', trim($date_string));
+
+        $html = getSimpleHTMLDOMCached(self::URI . $uri);
+        $content = $html->find('[property=content:encoded]', 0)->innertext;
+
+        $enclosures = [];
+        $pdfs_list = $html->find('.field-name-field-pdf-report', 0);
+        if ($pdfs_list != null) {
+            foreach ($pdfs_list->find('.field-item') as $pdf_item) {
+                $a = $pdf_item->find('a', 0);
+                array_push($enclosures, $a->href);
+            }
+        }
+
+        return [
+            'uri' => self::URI . $uri,
+            'title' => $title,
+            'uid' => $uri,
+            'author' => trim($user),
+            'timestamp' => $date->getTimestamp(),
+            'content' => $content,
+            'enclosures' => $enclosures
+        ];
+    }
+}