pagure/0101-Use-WhiteNoise-to-serve-static-assets-for-the-Pagure.patch

From 89f18ee38de1e6cb3ac482f865e6352ed340d763 Mon Sep 17 00:00:00 2001
From: Neal Gompa <ngompa13@gmail.com>
Date: Sun, 31 May 2020 11:56:38 -0400
Subject: [PATCH] Use WhiteNoise to serve static assets for the Pagure web
 interface

In order to make it easier to run Pagure in a containerized environment,
the web frontend needs to be capable of serving all of the frontend static
files. This change introduces WhiteNoise as a dependency that would enable
the Flask application itself to serve the static assets correctly.

This makes it possible to run a Pagure server without Apache or Nginx at all
in a containerized environment for all of the main functions.

Note that the releases folder is still not served through WhiteNoise, and
deployments that have uploading releases enabled will need something to
serve them.

Signed-off-by: Neal Gompa <ngompa13@gmail.com>
---
 files/pagure-apache-httpd.conf |  3 ---
 files/pagure-nginx.conf        |  9 ---------
 files/pagure.spec              | 13 ++-----------
 pagure/docs_server.py          |  9 +++++++++
 pagure/flask_app.py            |  7 +++++++
 requirements.txt               |  1 +
 6 files changed, 19 insertions(+), 23 deletions(-)

diff --git a/files/pagure-apache-httpd.conf b/files/pagure-apache-httpd.conf
index cf61e7f4..5724deb4 100644
--- a/files/pagure-apache-httpd.conf
+++ b/files/pagure-apache-httpd.conf
@@ -33,8 +33,6 @@
   #SSLCertificateChainFile /etc/pki/tls/....intermediate.crt
   #SSLCertificateKeyFile /etc/pki/tls/....key
 
-  #Alias /static /usr/lib/pythonX.Y/site-packages/pagure/static/
-
   #<Location />
     #WSGIProcessGroup paguredocs
     #<IfModule mod_authz_core.c>
@@ -64,7 +62,6 @@
   #SSLCertificateChainFile /etc/pki/tls/....intermediate.crt
   #SSLCertificateKeyFile /etc/pki/tls/....key
 
-  #Alias /static /usr/lib/pythonX.Y/site-packages/pagure/static/
   #Alias /releases /var/www/releases
 
   ## Section used to support cloning git repo over http (https in this case)
diff --git a/files/pagure-nginx.conf b/files/pagure-nginx.conf
index fe3ff832..a5d196a6 100644
--- a/files/pagure-nginx.conf
+++ b/files/pagure-nginx.conf
@@ -27,11 +27,6 @@
         #try_files $uri @pagure_docs;
     #}
 
-    #location /static {
-        #alias /usr/lib/pythonX.Y/site-packages/pagure/static/;
-        #try_files $uri $uri/;
-    #}
-
 #}
 
 #server {
@@ -63,10 +58,6 @@
         #try_files $uri @pagure;
     #}
 
-    #location /static {
-        #alias /usr/lib/pythonX.Y/site-packages/pagure/static/;
-    #}
-
     #location /releases {
         #alias /var/www/releases/;
         #autoindex on;
diff --git a/files/pagure.spec b/files/pagure.spec
index 5c084436..24fd5b37 100644
--- a/files/pagure.spec
+++ b/files/pagure.spec
@@ -75,6 +75,7 @@ Requires:           python%{python_pkgversion}-requests
 Requires:           python%{python_pkgversion}-six
 Requires:           python%{python_pkgversion}-sqlalchemy >= 0.8
 Requires:           python%{python_pkgversion}-straight-plugin
+Requires:           python%{python_pkgversion}-whitenoise
 Requires:           python%{python_pkgversion}-wtforms
 %endif
 
@@ -365,22 +366,12 @@ sed -e "s|#!/usr/bin/env python|#!%{__python}|" -i \
 # Switch interpreter for systemd units
 sed -e "s|/usr/bin/python|%{__python}|g" -i $RPM_BUILD_ROOT/%{_unitdir}/*.service
 
-%if 0%{?rhel} && 0%{?rhel} < 8
-# Change to correct static file path for apache httpd and nginx
-sed -e "s/pythonX.Y/python%{python2_version}/g" -i \
-    $RPM_BUILD_ROOT/%{_sysconfdir}/httpd/conf.d/pagure.conf \
-    $RPM_BUILD_ROOT/%{_sysconfdir}/nginx/conf.d/pagure.conf
-%else
+%if ! (0%{?rhel} && 0%{?rhel} < 8)
 # Switch all systemd units to use the correct celery
 sed -e "s|/usr/bin/celery|/usr/bin/celery-3|g" -i $RPM_BUILD_ROOT/%{_unitdir}/*.service
 
 # Switch all systemd units to use the correct gunicorn
 sed -e "s|/usr/bin/gunicorn|/usr/bin/gunicorn-3|g" -i $RPM_BUILD_ROOT/%{_unitdir}/*.service
-
-# Change to correct static file path for apache httpd and nginx
-sed -e "s/pythonX.Y/python%{python3_version}/g" -i \
-    $RPM_BUILD_ROOT/%{_sysconfdir}/httpd/conf.d/pagure.conf \
-    $RPM_BUILD_ROOT/%{_sysconfdir}/nginx/conf.d/pagure.conf
 %endif
 
 # Make log directories
diff --git a/pagure/docs_server.py b/pagure/docs_server.py
index fd7b2778..dc5e297b 100644
--- a/pagure/docs_server.py
+++ b/pagure/docs_server.py
@@ -17,6 +17,7 @@ import flask
 import pygit2
 
 from binaryornot.helpers import is_binary_string
+from whitenoise import WhiteNoise
 
 import pagure.config
 import pagure.doc_utils
@@ -29,6 +30,14 @@ import pagure.forms
 # Create the application.
 APP = flask.Flask(__name__)
 
+# Setup WhiteNoise for serving static files
+here = os.path.abspath(
+    os.path.join(os.path.dirname(os.path.abspath(__file__)))
+)
+APP.wsgi_app = WhiteNoise(
+    APP.wsgi_app, root=os.path.join(here, "static"), prefix="/static"
+)
+
 # set up FAS
 APP.config = pagure.config.reload_config()
 
diff --git a/pagure/flask_app.py b/pagure/flask_app.py
index 7d533b63..34eb4783 100644
--- a/pagure/flask_app.py
+++ b/pagure/flask_app.py
@@ -21,6 +21,8 @@ import warnings
 import flask
 import pygit2
 
+from whitenoise import WhiteNoise
+
 import pagure.doc_utils
 import pagure.exceptions
 import pagure.forms
@@ -188,6 +190,11 @@ def create_app(config=None):
     app.jinja_loader = jinja2.ChoiceLoader(templ_loaders)
     app.register_blueprint(themeblueprint)
 
+    # Setup WhiteNoise for serving static files
+    app.wsgi_app = WhiteNoise(
+        app.wsgi_app, root=os.path.join(here, "static"), prefix="/static"
+    )
+
     app.before_request(set_request)
     app.after_request(after_request)
     app.teardown_request(end_request)
diff --git a/requirements.txt b/requirements.txt
index dcde36ce..fa538676 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,6 +33,7 @@ sqlalchemy >= 0.8
 # 1.4.0 is broken, 1.4.0-post-1 works but gives odd results on newer setuptools
 # the latest version 1.5.0 is also known to work
 straight.plugin
+whitenoise
 wtforms
 
 # Required only for the `oidc` authentication backend
-- 
2.26.2