From 0e9fc8856dc086f340dd864238b5c8c856ee7a1a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Anton=20Luka=20=C5=A0ijanec?= <anton@sijanec.eu>
Date: Sun, 12 Feb 2023 01:13:25 +0100
Subject: fix missing piece layers errors

---
 misc/links.txt                  |  3 ++-
 www/.gitignore                  |  1 +
 www/composer.json               | 13 +++++++++++--
 www/insert.php                  | 18 ++++--------------
 www/no-piece-layers-check.patch | 25 +++++++++++++++++++++++++
 5 files changed, 43 insertions(+), 17 deletions(-)
 create mode 100644 www/no-piece-layers-check.patch

diff --git a/misc/links.txt b/misc/links.txt
index ce4647b..d983e3a 100644
--- a/misc/links.txt
+++ b/misc/links.txt
@@ -1,5 +1,6 @@
 https://www.europol-europa.eu/police2peer <= torrent nr. 44a058d498dd1880d82570b7e5b7ea729472f529
+https://github.com/arvidn/libtorrent/issues/6033#issuecomment-1426899570
 
 dht crawlerji po internetu:
-http://btdig.com (captcha)
+http://btdig.com (captcha, ki ni cloudflare, ampak njihova -- sploh ni CF na btdig.com)
 http://146.19.24.47:8000/ = https://yhgyhg{28..30}.buzz/ (CF)
diff --git a/www/.gitignore b/www/.gitignore
index 8796548..8a90f93 100644
--- a/www/.gitignore
+++ b/www/.gitignore
@@ -1,3 +1,4 @@
 package-lock.json
+composer.lock
 default
 vendor/
diff --git a/www/composer.json b/www/composer.json
index ed23328..1ef2be0 100644
--- a/www/composer.json
+++ b/www/composer.json
@@ -3,12 +3,21 @@
     "description": "web frontend for exploring metainfo files downloaded by travnik",
     "type": "project",
     "require": {
-        "rhilip/bencode": "^2.3"
+        "rhilip/bencode": "^2.3",
+        "cweagans/composer-patches": "^1.7"
     },
     "authors": [
         {
             "name": "Anton Luka Šijanec",
             "email": "anton@sijanec.eu"
         }
-    ]
+    ],
+    "extra": {
+	"composer-exit-on-patch-failure": true,
+	"patches": {
+		"rhilip/bencode": {
+			"don't check for piece layers validity on parse (called by getFileList/Tree) because we have no piece layers. they aren't present in the info dict.": "no-piece-layers-check.patch"
+		}
+	}
+    }
 }
diff --git a/www/insert.php b/www/insert.php
index 4fa8e59..28c9c28 100755
--- a/www/insert.php
+++ b/www/insert.php
@@ -89,14 +89,8 @@ try {
 	if (isset($t->getRootData()["source"]["v"]))
 		$odjemalec = $t->getRootData()["source"]["v"];
 	$s->execute();
-	function p ($k, $v, $p) {
-		global $c, $zgoščena_vrednost;
-		// if (preg_match("/padding.file/i", $k))
-		//	return;
-		if (is_array($v)) {
-			foreach ($v as $ke => $va)
-				p($ke, $va, $p . $k . "/");
-		} else {
+	try {
+		foreach ($t->getFileList() as $datoteka) {
 			$s = $c->prepare("INSERT INTO datoteke (
 				torrent,
 				pot,
@@ -109,16 +103,12 @@ try {
 			$s->bindParam(":torrent", $zgoščena_vrednost);
 			$s->bindParam(":pot", $pot);
 			$s->bindParam(":velikost", $velikost);
-			$pot = $p . $k;
+			$pot = $datoteka["path"];
+			$velikost = $datoteka["size"];
 			if (strlen($pot) > 4096)
 				echo "$argv[4] pot $pot daljša od 4096";
-			$velikost = $v;
 			$s->execute();
 		}
-	}
-	try {
-		foreach ($t->getFileTree() as $k => $v)
-			p($k, $v, "");
 	} catch (ParseException $e) {
 		echo "neveljaven metainfo $argv[4]: " . $e->getMessage() . PHP_EOL;
 		exit(5);
diff --git a/www/no-piece-layers-check.patch b/www/no-piece-layers-check.patch
new file mode 100644
index 0000000..66d7a92
--- /dev/null
+++ b/www/no-piece-layers-check.patch
@@ -0,0 +1,25 @@
+diff --git a/src/TorrentFile.php b/src/TorrentFile.php
+index 20a7f5e..eddc329 100644
+--- a/src/TorrentFile.php
++++ b/src/TorrentFile.php
+@@ -621,7 +621,7 @@ class TorrentFile
+             } else {
+                 $pieceLength = $this->getPieceLength();
+                 $fileTree = self::checkTorrentDict($info, 'file tree', 'array');
+-                $pieceLayers = self::checkTorrentDict($this->data, 'piece layers', 'array');
++                $pieceLayers = [];
+ 
+                 $loopMerkleTree = function (&$merkleTree, &$paths = []) use (&$files, &$size, $pieceLayers, $addFile, $pieceLength, &$loopMerkleTree) {
+                     if (isset($merkleTree[''])) {  // reach file
+@@ -633,11 +633,6 @@ class TorrentFile
+                         }
+ 
+                         $length = self::checkTorrentDict($file, 'length', 'integer');
+-                        if ($length > $pieceLength) {  // check pieces root of large file is exist in $root['picec layers'] or not
+-                            if (!array_key_exists($piecesRoot, $pieceLayers)) {
+-                                throw new ParseException('Pieces not exist in piece layers.');
+-                            }
+-                        }
+ 
+                         $addFile($paths, $length);
+                         $merkleTree = $length;  // rewrite merkleTree to size, it's safe since it not affect $data['info']['file tree']
-- 
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