From ef430522256013665205cdda05636846cc622251 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Tue, 12 Jul 2016 03:10:33 +0200
Subject: nginx: Don't hard-code the HPKP headers.

Instead, lookup the pubkeys and compute the digests on the fly.  But
never modify the actual header snippet to avoid locking our users out.
---
 roles/lists/files/etc/nginx/sites-available/sympa           |  6 +++---
 roles/lists/tasks/nginx.yml                                 | 13 ++++++++++++-
 .../etc/nginx/snippets/lists.fripost.org.hpkp-hdr.j2        |  1 +
 3 files changed, 16 insertions(+), 4 deletions(-)
 create mode 120000 roles/lists/templates/etc/nginx/snippets/lists.fripost.org.hpkp-hdr.j2

(limited to 'roles/lists')

diff --git a/roles/lists/files/etc/nginx/sites-available/sympa b/roles/lists/files/etc/nginx/sites-available/sympa
index 732f09f..fbb3421 100644
--- a/roles/lists/files/etc/nginx/sites-available/sympa
+++ b/roles/lists/files/etc/nginx/sites-available/sympa
@@ -29,9 +29,9 @@ server {
                "default-src 'none'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self'; font-src 'self'; upgrade-insecure-requests; block-all-mixed-content; reflected-xss block; referrer no-referrer-when-downgrade; frame-ancestors 'none'; form-action 'self'; base-uri lists.fripost.org";
 
     include snippets/ssl.conf;
-    ssl_certificate     /etc/nginx/ssl/lists.fripost.org.pem;
-    ssl_certificate_key /etc/nginx/ssl/lists.fripost.org.key;
-    add_header Public-Key-Pins 'pin-sha256="OLx1hOEqnCdS/7ZgzTzAl8Ig/Cwpz5MY9J9Fishg6/0="; pin-sha256="v/Ow0Ou2m08HO10wxci1IVrMC/pbihnoDNxvUwKBsMY="; max-age=15778800';
+    ssl_certificate     ssl/lists.fripost.org.pem;
+    ssl_certificate_key ssl/lists.fripost.org.key;
+    include             snippets/lists.fripost.org.hpkp-hdr;
 
     location = / {
         return 302 /sympa$args;
diff --git a/roles/lists/tasks/nginx.yml b/roles/lists/tasks/nginx.yml
index 20b3262..6bf4afc 100644
--- a/roles/lists/tasks/nginx.yml
+++ b/roles/lists/tasks/nginx.yml
@@ -19,9 +19,20 @@
   notify:
     - Restart Nginx
 
+- name: Copy HPKP header snippet
+  # never modify the pined pubkeys as we don't want to lock out our users
+  template: src=etc/nginx/snippets/lists.fripost.org.hpkp-hdr.j2
+            dest=/etc/nginx/snippets/lists.fripost.org.hpkp-hdr
+            validate=/bin/false
+            owner=root group=root
+            mode=0644
+  register: r3
+  notify:
+    - Restart Nginx
+
 - name: Start nginx
   service: name=nginx state=started
-  when: not (r1.changed or r2.changed)
+  when: not (r1.changed or r2.changed or r3.changed)
 
 - meta: flush_handlers
 
diff --git a/roles/lists/templates/etc/nginx/snippets/lists.fripost.org.hpkp-hdr.j2 b/roles/lists/templates/etc/nginx/snippets/lists.fripost.org.hpkp-hdr.j2
new file mode 120000
index 0000000..a8ba598
--- /dev/null
+++ b/roles/lists/templates/etc/nginx/snippets/lists.fripost.org.hpkp-hdr.j2
@@ -0,0 +1 @@
+../../../../../../certs/hpkp-hdr.j2
\ No newline at end of file
-- 
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