v0.1.5: Added a rule for Akamai and a note about forcing headers

nicjansma · May 12, 2018 · 82f371e · 82f371e
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diff --git a/README.md b/README.md
@@ -1,6 +1,6 @@
 # cdn-detector.js
 
-v0.1.4
+v0.1.5
 
 [http://nicj.net](http://nicj.net)
 
@@ -155,6 +155,32 @@ Via `gulp`, these are built as `data/*.js` and are included in the `dist/*.js` f
 
 In NodeJS, these files are used as-is.
 
+## Forcing Headers
+
+Some CDNs may require a HTTP Request Header to be present before they expose a HTTP
+Response Header that can be used for fingerprinting.
+
+Known examples:
+
+* [Akamai](https://community.akamai.com/community/web-performance/blog/2015/03/31/using-akamai-pragma-headers-to-investigate-or-troubleshoot-akamai-content-delivery):
+    `Pragma: akamai-x-get-request-id` will return a `X-Akamai-Request-ID`
+
+If you're using [`request`](https://github.com/request/request) to fetch the
+headers, you would add the HTTP Request Header to the `request()` options:
+
+```js
+request({
+    url: url,
+    gzip: true,
+    time: true,
+    headers: {
+        'pragma': 'akamai-x-get-request-id'
+    }
+}, function(err, response, body) {
+    ...
+});
+```
+
 ## Tests
 
 Tests are provided in the `test/` directory, and can be run via `mocha`:
@@ -168,7 +194,8 @@ Or via ``gulp``:
 ## Version History
 
 * v0.1.0 - 2016-08-17: Initial version
-* v0.1.1 - 2016-08-17: Changed what inedx points to
-* v0.1.2 - 2016-08-17: Fixed module.exports
+* v0.1.1 - 2016-08-17: Changed what `index.js` points to
+* v0.1.2 - 2016-08-17: Fixed `module.exports`
 * v0.1.3 - 2016-10-31: jQuery CDN added
 * v0.1.4 - 2017-07-02: CDN list updated
+* v0.1.5 - 2018-05-12: Added a rule for Akamai and a note about forcing headers
diff --git a/bower.json b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "cdn-detector",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "homepage": "https://github.com/nicjansma/cdn-detector.js",
   "authors": [
     "Nic Jansma <nic@nicj.net>"

diff --git a/data/headers.js b/data/headers.js
@@ -119,6 +119,11 @@ var CdnDetectorHeaders = [
 		"rev-cache",
 		"Rev Software"
 	],
+	[
+		"x-akamai-request-id",
+		"",
+		"Akamai"
+	],
 	[
 		"x-amz-cf-id",
 		"",

diff --git a/data/headers.json b/data/headers.json
@@ -23,6 +23,7 @@
     ["via", "bitgravity", "BitGravity"],
     ["via", "cloudfront", "Amazon CloudFront"],
     ["via", "rev-cache", "Rev Software"],
+    ["x-akamai-request-id", "", "Akamai"],
     ["x-amz-cf-id", "", "Amazon CloudFront"],
     ["x-ar-debug", "", "Aryaka"],
     ["x-cache", "cache.51cdn.com", "ChinaNetCenter"],

diff --git a/dist/cdn-detector.js b/dist/cdn-detector.js
@@ -119,6 +119,11 @@ var CdnDetectorHeaders = [
 		"rev-cache",
 		"Rev Software"
 	],
+	[
+		"x-akamai-request-id",
+		"",
+		"Akamai"
+	],
 	[
 		"x-amz-cf-id",
 		"",
@@ -403,6 +408,7 @@ var CdnDetectorMultiHeaders = [
 //
 // https://github.com/nicjansma/cdn-detector.js
 //
+/* eslint-env commonjs, browser, amd */
 (function(window) {
     "use strict";
 
@@ -554,19 +560,21 @@ var CdnDetectorMultiHeaders = [
 
         // convert all incoming headers to lower case first
         var lowerHeaders = {};
-        for (var header in headers) {
-            if (headers.hasOwnProperty(header)) {
-                lowerHeaders[header.toLowerCase()] = headers[header];
+        for (var headerName in headers) {
+            if (headers.hasOwnProperty(headerName)) {
+                lowerHeaders[headerName.toLowerCase()] = headers[headerName];
             }
         }
 
+        var i, data, cdn, match, matches;
+
         // find any matching headers in our data
-        for (var i = 0; i < headersData.length; i++) {
-            var data = headersData[i];
+        for (i = 0; i < headersData.length; i++) {
+            data = headersData[i];
 
             var header = data[0];
-            var match = data[1];
-            var cdn = data[2];
+            match = data[1];
+            cdn = data[2];
 
             if (typeof lowerHeaders[header] === "string") {
                 // if there is no match string, we're good
@@ -580,18 +588,18 @@ var CdnDetectorMultiHeaders = [
         }
 
         // find any multi headers (multiple headers need to match)
-        for (var i = 0; i < multiHeadersData.length; i++) {
-            var data = multiHeadersData[i];
+        for (i = 0; i < multiHeadersData.length; i++) {
+            data = multiHeadersData[i];
 
-            var cdn = data[0];
-            var matches = data[1];
+            cdn = data[0];
+            matches = data[1];
 
             var matchesAll = true;
             var matchEvidence = [];
 
             // loop through, looking to see if this request matches
             // all headers in the set
-            for (var match in matches) {
+            for (match in matches) {
                 if (matches.hasOwnProperty(match)) {
                     var matchValue = matches[match];
 

diff --git a/dist/cdn-detector.min.js b/dist/cdn-detector.min.js
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cdn-detector",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "CDN detection",
   "main": "index.js",
   "scripts": {

diff --git a/test/test.js b/test/test.js
@@ -238,6 +238,18 @@
 
                 expect(result).to.equal(null);
             });
+
+            it("should detect Akamai with x-akamai-request-id", function() {
+                var result = cd.detectFromHeaders({
+                    "X-Akamai-Request-ID": "2256a92",
+                });
+
+                expect(result).to.not.equal(null);
+
+                expect(result.cdn).to.equal("Akamai");
+
+                expect(result.evidence).to.contain("x-akamai-request-id: *");
+            });
         });
     });
 }(typeof window !== "undefined" ? window : undefined));