Prune old, unreachable code and images

- Removes old, unreachable "custom header image" logic which was
  replaced with custom logo upload feature
- Remove old, 0.3 era backup script and backup variable from staging.yml
- Remove old logo images and AppArmor whitelisting rules for them

Resolves #5347

install_files/ansible-base/group_vars/staging.yml

@@ -55,15 +55,6 @@ enable_ssh_over_tor: false
 # v3 onion services should be available in staging for testing.
 v3_onion_services: true
 
-### Use for backup restores ###
-# If the `backup_zip` variable is defined ansible will copy the defined file to
-# the app server and run the 0.3_collect.py script to unzip and restore those
-# files.
-# ex: backup_zip: "sd-backup-2015-01-15--21-03-32.zip"
-# To use uncomment the following line and enter the correct decrypted zip
-# filename between the quotes.
-#backup_zip: ""
-
 install_local_packages: true
 
 # Don't install app-code package from the FPF apt repo, since we want to run

install_files/ansible-base/roles/build-securedrop-app-code-deb-pkg/files/usr.sbin.apache2

@@ -280,8 +280,6 @@
   /var/www/securedrop/static/i/logo-footer.png r,
   /var/www/securedrop/static/i/no16-global.png r,
   /var/www/securedrop/static/i/no16.png r,
-  /var/www/securedrop/static/i/securedrop.png r,
-  /var/www/securedrop/static/i/securedrop_small.png r,
   /var/www/securedrop/static/i/server_upload.png r,
   /var/www/securedrop/static/i/star.png r,
   /var/www/securedrop/static/i/success_checkmark.png r,

securedrop/journalist_app/__init__.py

@@ -111,14 +111,6 @@ def _handle_http_exception(
     app.jinja_env.trim_blocks = True
     app.jinja_env.lstrip_blocks = True
     app.jinja_env.globals['version'] = version.__version__
-    if hasattr(config, 'CUSTOM_HEADER_IMAGE'):
-        app.jinja_env.globals['header_image'] = \
-            config.CUSTOM_HEADER_IMAGE  # type: ignore
-        app.jinja_env.globals['use_custom_header_image'] = True
-    else:
-        app.jinja_env.globals['header_image'] = 'logo.png'
-        app.jinja_env.globals['use_custom_header_image'] = False
-
     app.jinja_env.filters['rel_datetime_format'] = \
         template_filters.rel_datetime_format
     app.jinja_env.filters['filesizeformat'] = template_filters.filesizeformat

securedrop/journalist_templates/base.html

@@ -41,11 +41,6 @@
         <div id="header">
           <a href="{{ url_for('main.index') }}" class="no-bottom-border"><img src="{{ url_for('main.select_logo') }}" class="logo small" alt="SecureDrop" width="250"></a>
           {% include 'locales.html' %}
-          {% if use_custom_header_image %}
-          <div class="powered">
-            {{ gettext('Powered by <br> <img src="/static/i/securedrop_small.png" alt="SecureDrop">') }}
-          </div>
-          {% endif %}
         </div>
         {% endblock %}
 

securedrop/source_app/__init__.py

@@ -91,14 +91,6 @@ def handle_csrf_error(e):
     app.jinja_env.globals['version'] = version.__version__
     # Exported to source templates for being included in instructions
     app.jinja_env.globals['submission_key_fpr'] = config.JOURNALIST_KEY
-    if getattr(config, 'CUSTOM_HEADER_IMAGE', None):
-        app.jinja_env.globals['header_image'] = \
-            config.CUSTOM_HEADER_IMAGE  # type: ignore
-        app.jinja_env.globals['use_custom_header_image'] = True
-    else:
-        app.jinja_env.globals['header_image'] = 'logo.png'
-        app.jinja_env.globals['use_custom_header_image'] = False
-
     app.jinja_env.filters['rel_datetime_format'] = \
         template_filters.rel_datetime_format
     app.jinja_env.filters['nl2br'] = evalcontextfilter(template_filters.nl2br)

securedrop/source_templates/base.html

@@ -20,12 +20,6 @@
             <img src="{{ url_for('main.select_logo') }}" class="logo small" alt="{{ gettext('Logo Image') }}" width="250">
           </a>
           {% include 'locales.html' %}
-          {% if use_custom_header_image %}
-          <div class="powered">
-            {{ gettext('Powered by') }}<br>
-            <img src="/static/i/securedrop_small.png" alt="SecureDrop">
-          </div>
-          {% endif %}
         </div>
         {% endblock %}
 

securedrop/source_templates/index.html

@@ -27,12 +27,6 @@
         <div class="index-wrap">
           <div class="header">
             <img src="{{ url_for('main.select_logo') }}" alt="{{ gettext('Logo Image') }}" class="logo-image">
-            {% if use_custom_header_image %}
-            <div class="powered">
-              {{ gettext('Powered by') }}<br>
-              <img src="/static/i/securedrop_small.png" alt="SecureDrop">
-            </div>
-            {% endif %}
             <div id="index-locales">
               {% include 'locales.html' %}
             </div>