Add WOPI discovery service and connection diagnostics

2026-09-06 21:05:47 -04:00
parent 069f7068c8
commit 661e0e1213
14 changed files with 1238 additions and 2 deletions
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXM\ServiceWopi\Discovery;
+
+use RuntimeException;
+
+class DiscoveryClient
+{
+    public function fetch(ServerAddress $server): DiscoveryDocument
+    {
+        $curl = curl_init($server->discoveryUrl());
+        $xml = '';
+        curl_setopt_array($curl, [
+            CURLOPT_CONNECTTIMEOUT => 5,
+            CURLOPT_TIMEOUT => 15,
+            CURLOPT_FOLLOWLOCATION => false,
+            CURLOPT_PROTOCOLS => CURLPROTO_HTTPS,
+            CURLOPT_SSL_VERIFYPEER => true,
+            CURLOPT_SSL_VERIFYHOST => 2,
+            CURLOPT_HTTPHEADER => ['Accept: application/xml, text/xml'],
+            CURLOPT_WRITEFUNCTION => static function ($handle, string $chunk) use (&$xml): int {
+                if (strlen($xml) + strlen($chunk) > DiscoveryDocument::MAX_BYTES) { return 0; }
+                $xml .= $chunk;
+                return strlen($chunk);
+            },
+        ]);
+        try {
+            $ok = curl_exec($curl);
+            $status = curl_getinfo($curl, CURLINFO_RESPONSE_CODE);
+            if ($ok === false) {
+                throw new RuntimeException('Discovery request failed (cURL ' . curl_errno($curl) . '). Check DNS, TLS, connectivity, and response size.');
+            }
+            if ($status !== 200) {
+                throw new RuntimeException('Discovery returned HTTP ' . $status
+                    . ($status === 404 ? '. Enable WOPI and forward /hosting/discovery through the proxy.' : '. Expected HTTP 200; redirects are not followed.'));
+            }
+            return DiscoveryDocument::parse($xml, $server);
+        } finally {
+            curl_close($curl);
+        }
+    }
+}