ENCODING!! and lots of organization

2026-09-07 07:19:23 +00:00 · 2023-09-13 14:50:27 -05:00
parent 2ab90d0146
commit fa0160fc54
37 changed files with 651 additions and 222 deletions
@@ -0,0 +1,39 @@
+const Parser = require('binary-parser').Parser;
+
+const infoTrackerNameParser = new Parser()
+  .uint16le('id')
+  .uint16le('data_len', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return Number.parseInt(binary.substring(1), 2);
+    },
+  })
+  .seek(-2)
+  .uint16le('has_subchunks', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return binary.charAt(0) === '1';
+    },
+  })
+  .string('tracker_name', { length: 'data_len' });
+
+const infoTrackerParser = new Parser()
+  .uint16le('id')
+  .uint16le('data_len', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return Number.parseInt(binary.substring(1), 2);
+    },
+  })
+  .seek(-2)
+  .uint16le('has_subchunks', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return binary.charAt(0) === '1';
+    },
+  })
+  .nest('tracker_name', {
+    type: infoTrackerNameParser,
+  });
+
+module.exports = new Parser().array('trackers', { type: infoTrackerParser, readUntil: 'eof' });