Fixes #2778 - Implements HTTP/2 Push through Flask

.circleci/config.yml

@@ -53,14 +53,13 @@ jobs:
           command: |
             . venv/bin/activate
             pep8 --ignore=E402 webcompat/ tests/ config/secrets.py.example
-            python run.py -t &
-            sleep 5
-            nosetests
             npm run lint
             npm run build
+            nosetests
+            python run.py -t &
+            sleep 5
             node --max-old-space-size=8192 ./tests/functional/_intern.js --reporters="runner" --firefoxBinary=`which firefox`
             firefox --version
-
       - store_artifacts:
           path: test-reports
           destination: test-reports

config/requirements.txt

@@ -1,5 +1,6 @@
 blinker==1.4
 Flask==1.0.2
+Flask-Firehose==0.2.2
 Flask-Limiter==0.9.3
 Flask-SQLAlchemy==2.1
 Flask-WTF==0.14.2

webcompat/__init__.py

@@ -9,12 +9,17 @@
 import logging
 
 from flask import Flask
+from flask_firehose import Firehose
 from flask_github import GitHub
 from flask_limiter import Limiter
 from flask_limiter.util import get_remote_address
 
 # Define the application
 app = Flask(__name__, static_url_path='')
+Firehose(app)
+# Adds the HTTP/2 Server Push functionality to app
+# firehose = Firehose(connector=Custom_connector())
+# firehose.init_app(app)
 
 # Configurations
 app.config.from_object('config')

webcompat/views.py

@@ -21,11 +21,13 @@
 from flask import url_for
 
 from dashboard import filter_needstriage
+from flask_firehose import push
 from form import AUTH_REPORT
 from form import get_form
 from form import PROXY_REPORT
 from helpers import add_csp
 from helpers import add_sec_headers
+from helpers import bust_cache
 from helpers import cache_policy
 from helpers import form_type
 from helpers import get_browser_name
@@ -153,6 +155,22 @@ def file_issue():
 @app.route('/', methods=['GET'])
 def index():
     """Set the main view where people come to report issues."""
+    push('/css/dist/webcompat.min.css', **{
+        'as': 'style',
+        'rel': 'preload'
+    })
+    push(bust_cache('/js/dist/webcompat.min.js'), **{
+        'as': 'script',
+        'rel': 'preload'
+    })
+    push('/img/svg/icons/svg-leaf_right.svg', **{
+        'as': 'img',
+        'rel': 'preload'
+    })
+    push('/img/svg/icons/svg-leaf_left.svg', **{
+        'as': 'img',
+        'rel': 'preload'
+    })
     ua_header = request.headers.get('User-Agent')
     bug_form = get_form({'user_agent': ua_header})
     # browser_name is used in topbar.html to show the right add-on link
@@ -167,6 +185,18 @@ def index():
 @cache_policy(private=True, uri_max_age=0, must_revalidate=True)
 def show_issues():
     """Route to display global issues view."""
+    push('/css/dist/webcompat.min.css', **{
+        'as': 'style',
+        'rel': 'preload'
+    })
+    push(bust_cache('/js/dist/webcompat.min.js'), **{
+        'as': 'script',
+        'rel': 'preload'
+    })
+    push(bust_cache('/js/dist/issues.min.js'), **{
+        'as': 'script',
+        'rel': 'preload'
+    })
     if g.user:
         get_user_info()
     categories = app.config['CATEGORIES']
@@ -206,6 +236,14 @@ def create_issue():
     Any deceptive requests will be ended as a 400.
     See https://tools.ietf.org/html/rfc7231#section-6.5.1
     """
+    push('/css/dist/webcompat.min.css', **{
+        'as': 'style',
+        'rel': 'preload'
+    })
+    push(bust_cache('/js/dist/webcompat.min.js'), **{
+        'as': 'script',
+        'rel': 'preload'
+    })
     # Starting a logger
     log = app.logger
     log.setLevel(logging.INFO)
@@ -276,6 +314,18 @@ def create_issue():
 @cache_policy(private=True, uri_max_age=0, must_revalidate=True)
 def show_issue(number):
     """Route to display a single issue."""
+    push('/css/dist/webcompat.min.css', **{
+        'as': 'style',
+        'rel': 'preload'
+    })
+    push(bust_cache('/js/dist/webcompat.min.js'), **{
+        'as': 'script',
+        'rel': 'preload'
+    })
+    push(bust_cache('/js/dist/issues.min.js'), **{
+        'as': 'script',
+        'rel': 'preload'
+    })
     if g.user:
         get_user_info()
     if session.get('show_thanks'):