express-range-tracker - npm Package Compare versions

Comparing version 1.0.7 to 1.0.8

index.js

 const defaultStorage = {};
 
+const prop = (key) => (obj) => obj[key];
+
 module.exports = (
@@ -12,2 +14,3 @@ {
     onDeadlineReached,
+    onSimilarTimestamp,
     timestampFunction,
@@ -103,2 +106,36 @@ bannedTraits = [],
 
+    if (typeof onSimilarTimestamp === "function") {
+      const reducer =
+        (ip) =>
+        (acc, { timestamp }, index, arr) => {
+          if (index) {
+            acc.push({
+              ip,
+              window: timestamp - arr[index - 1].timestamp,
+            });
+          }
+
+          return acc;
+        };
+
+      const timestampWindows = Object.keys(storage)
+        .filter((key) => storage[key].ip !== ip)
+        .map((key) => storage[key].reduce(reducer(key), []));
+
+      const currentTimestampWindow = storage[ip]
+        .reduce(reducer(ip), [])
+        .map(prop("window"))
+        .join();
+
+      const similarTimestampWindows = timestampWindows.filter(
+        (chunks) =>
+          chunks.map(prop("window")).join() === currentTimestampWindow &&
+          chunks[0]?.ip !== ip
+      );
+
+      if (currentTimestampWindow && similarTimestampWindows.length) {
+        onSimilarTimestamp(req, similarTimestampWindows.flat().map(prop("ip")));
+      }
+    }
+
     if (typeof onSimilarTrait === "function") {
@@ -105,0 +142,0 @@ const reducer = (acc, { from, to }) => (acc += `${from},${to};`);

package.json

 {
   "name": "express-range-tracker",
-  "version": "1.0.7",
+  "version": "1.0.8",
   "description": "Detects bots by tracking the timings of range header",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -73,2 +73,8 @@ # express-range-tracker
 
+`onSimilarTimestamp` - function that fires on clients with same range request timestamp windows
+
+```js
+onSimilarTimestamp(req, ips);
+```
+
 # Test
@@ -75,0 +81,0 @@

Fixed alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

6624

increased by21.76%

Lines of code

146

increased by25.86%

Number of lines in readme file

84

increased by7.69%

Number of medium supply chain risk alerts

0

decreased by-100%

No dependency changes