Add Http2 detection

2016-01-09 00:10:01 +01:00
parent 06bdbd929c
commit 178f2fd135
7 changed files with 184 additions and 0 deletions
@@ -0,0 +1,87 @@
+var debug   = require('debug')('ylt:isHttp2');
+var url     = require('url');
+var Q       = require('q');
+var http2   = require('is-http2');
+
+var isHttp2 = function() {
+    'use strict';
+
+    this.check = function(data) {
+        debug('Starting to check for HTTP2 support...');
+
+        return this.checkHttp2(data)
+
+            .then(function(result) {
+
+                if (result.isHttp2) {
+                    debug('HTTP/2 (or SPDY) is supported');
+
+                    data.toolsResults.http2 = {
+                        metrics: {
+                            http2: true
+                        }
+                    };
+                
+                } else {
+                    debug('HTTP/2 is not supported');
+                    
+                    data.toolsResults.http2 = {
+                        metrics: {
+                            http2: false
+                        }
+                    };
+                }
+
+                // Add the supported protocols as offenders
+                if (result.supportedProtocols) {
+                    debug('Supported protocols: ' + result.supportedProtocols.join(' '));
+                    data.toolsResults.http2.offenders = {
+                        http2: result.supportedProtocols
+                    };
+                }
+
+                debug('End of HTTP2 support check');
+
+                return data;
+            })
+
+            .fail(function() {
+                return data;
+            });
+    };
+
+    this.getParsedUrl = function(data) {
+        return url.parse(data.toolsResults.phantomas.url);
+    };
+
+    this.getProtocol = function(data) {
+        return this.getParsedUrl(data).protocol;
+    };
+
+    this.getDomain = function(data) {
+        return this.getParsedUrl(data).hostname;
+    };
+
+    this.checkHttp2 = function(data) {
+        var deferred = Q.defer();
+
+        var domain = this.getDomain(data);
+
+        // To make is-http2 work, you need to have openssl in a version greater than 1.0.0 installed and available in your $path.
+        http2(domain, {includeSpdy: true})
+
+            .then(function(result) {
+                deferred.resolve(result);
+            })
+            
+            .catch(function(error) {
+                debug('Error while checking HTTP2 support:');
+                debug(error);
+                deferred.reject('Error while checking for HTTP2 support');
+            });
+
+        return deferred.promise;
+    };
+};
+
+module.exports = new isHttp2();