ogcp: Add /action/cache/fetch endpoint

Add view to request the download of images into the client's cache.

ogcp/forms/action_forms.py

@@ -110,6 +110,14 @@ class ImageRestoreForm(FlaskForm):
                                   ('UNICAST-DIRECT', 'UNICAST-DIRECT')])
     restore = SubmitField(label=_l('Restore'))
 
+class ImageFetchForm(FlaskForm):
+    ips = HiddenField()
+    image = SelectField(label=_l('Image'), choices=[])
+    method = SelectField(label=_l('Method'),
+                         choices=[('TIPTORRENT', 'TIPTORRENT'),
+                                  ('UNICAST', 'UNICAST')])
+    submit = SubmitField(label=_l('Submit'))
+
 class RepoForm(FlaskForm):
     server = HiddenField()
     repo_id = HiddenField()

ogcp/templates/actions/cache_fetch.html

@@ -0,0 +1,27 @@
+{% extends 'commands.html' %}
+{% import "bootstrap/wtf.html" as wtf %}
+{% import "macros.html" as macros %}
+
+{% set sidebar_state = 'disabled' %}
+{% set btn_back = true %}
+
+{% block nav_image %} active {% endblock %}
+{% block nav_cache_fetch %} active {% endblock %}
+{% block content %}
+
+{% set ip_list = form.ips.data.split(' ') %}
+{% set ip_count = ip_list | length %}
+<h2 class="mx-5 subhead-heading">
+  {{ _('Cache image in %(ip_count)d computer(s)', ip_count=ip_count) }}
+</h2>
+
+{{ macros.cmd_selected_clients(selected_clients) }}
+
+{{ wtf.quick_form(form,
+                  action=url_for('action_image_fetch'),
+                  method='post',
+                  button_map={'submit': 'primary'},
+                  extra_classes='m-5') }}
+
+
+{% endblock %}

ogcp/templates/commands.html

@@ -76,6 +76,8 @@
     {% endif %}
     <input class="btn btn-light dropdown-item{% block nav_image_restore %}{% endblock %}" type="submit" value="{{ _('Restore Image') }}"
            form="scopesForm" formaction="{{ url_for('action_image_restore') }}" formmethod="get">
+    <input class="btn btn-light dropdown-item{% block nav_image_fetch %}{% endblock %}" type="submit" value="{{ _('Cache image') }}"
+           form="scopesForm" formaction="{{ url_for('action_image_fetch') }}" formmethod="get">
     </div>
   </div>
 

ogcp/views.py

@@ -14,7 +14,7 @@ from ogcp.forms.action_forms import (
     RoomForm, DeleteRoomForm, CenterForm, DeleteCenterForm, OgliveForm,
     GenericForm, SelectClientForm, ImageUpdateForm, ImportClientsForm,
     ServerForm, DeleteRepositoryForm, RepoForm, FolderForm, CacheForm,
-    ClientMoveForm, RunScriptForm, ImageConfigForm
+    ClientMoveForm, RunScriptForm, ImageConfigForm, ImageFetchForm
 )
 from flask_login import (
     current_user, LoginManager,
@@ -1307,6 +1307,95 @@ def action_client_cache():
                                storage_data=storage_data,
                                client_images=client_images)
 
+@app.route('/action/cache/fetch', methods=['GET', 'POST'])
+@login_required
+def action_image_fetch():
+    form = ImageFetchForm(request.form)
+    if request.method == 'POST':
+        ips = form.ips.data.split(' ')
+        server = get_server_from_clients(list(ips))
+
+        image_id = form.image.data
+        server = get_server_from_clients(ips)
+        r = server.get('/images')
+        if not r:
+            return ogserver_down('commands')
+        if r.status_code != requests.codes.ok:
+            return ogserver_error('commands')
+
+        images_list = r.json()['images']
+        image = search_image(images_list, int(image_id))
+        if not image:
+            flash(_(f'Image to fetch was not found'), category='error')
+            return redirect(url_for('commands'))
+
+        try:
+            repository = get_repository(image['repo_id'], server)
+        except ServerError:
+            return ogserver_down('commands')
+        except ServerErrorCode:
+            return ogserver_error('commands')
+
+        payload = {'clients': ips,
+                   'repository': repository['ip'],
+                   'type': form.method.data,
+                   'image': image['name']}
+
+        r = server.post('/cache/fetch', payload=payload)
+        if not r:
+            return ogserver_down('commands')
+        if r.status_code == requests.codes.ok:
+            flash(_('Cache fetch request sent successfully'), category='info')
+        else:
+            flash(_(f'Invalid cache fetch form'), category='error')
+        return redirect(url_for('commands'))
+    else:
+        params = request.args.to_dict()
+        ips = parse_elements(params)
+        center_id = int(params.get('scope-center'))
+
+        if not validate_elements(ips):
+            return redirect(url_for('commands'))
+
+        ips_list = list(ips)
+        form.ips.data = ' '.join(ips_list)
+
+        server = get_server_from_clients(ips)
+
+        try:
+            repo_id = get_clients_repo(server, ips)
+        except ServerError:
+            return ogserver_down('commands')
+        except ServerErrorCode:
+            return ogserver_error('commands')
+
+        if repo_id is None:
+            flash(_(f'Computers have different repos assigned'), category='error')
+            return redirect(url_for('commands'))
+        try:
+            images = get_images_from_repo(server, repo_id)
+
+            if not images:
+                flash(_(f'Computer(s) assigned to a repo with no images'), category='error')
+                return redirect(url_for('commands'))
+
+            images = filter_images_allowed_in_center(server, images, center_id)
+        except ServerError:
+            return ogserver_down('commands')
+        except ServerErrorCode:
+            return ogserver_error('commands')
+
+        sort_images(images)
+
+        for image in images:
+            form.image.choices.append((image['id'], image['name']))
+
+        scopes, clients = get_scopes(set(ips))
+        selected_clients = list(get_selected_clients(scopes['scope']).items())
+        return render_template('actions/cache_fetch.html', form=form,
+                               selected_clients=selected_clients,
+                               scopes=scopes)
+
 @app.route('/action/client/info', methods=['GET'])
 @login_required
 def action_client_info():