[IMP] account: improve invoice page view on customer portal

* keep query on pdf link so that customers have access to the pdf when
   using the access token instead of having an access rights error;
 * add redirect to record override that allow to take into account
   /mail/view links containing an access token for invoices like what
   is already supported for sale orders;
 * improve action buttons display;
 * reduce headers and better display invoice name and customer address;

addons/account/controllers/__init__.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from . import mail
 from . import portal

addons/account/controllers/mail.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+import werkzeug
+
+from odoo.addons.mail.controllers.main import MailController
+from odoo.exceptions import AccessError
+from odoo.http import request
+from odoo.tools.misc import consteq
+
+
+class MailController(MailController):
+
+    def _redirect_to_record(cls, model, res_id, access_token=None):
+        # If the current user doesn't have access to the invoice, but provided
+        # a valid access token, redirect him to the front-end view.
+        if model == 'account.invoice' and res_id and access_token:
+            uid = request.session.uid or request.env.ref('base.public_user').id
+            record_sudo = request.env[model].sudo().browse(res_id).exists()
+            try:
+                record_sudo.sudo(uid).check_access_rights('read')
+                record_sudo.sudo(uid).check_access_rule('read')
+            except AccessError:
+                if record_sudo.access_token and consteq(record_sudo.access_token, access_token):
+                    record_action = record_sudo.with_context(
+                        force_website=True).get_access_action(uid)
+                    if record_action['type'] == 'ir.actions.act_url':
+                        return werkzeug.utils.redirect(record_action['url'])
+        return super(MailController, cls)._redirect_to_record(model, res_id, access_token=access_token)

addons/account/views/account_portal_templates.xml

@@ -80,19 +80,10 @@
                                     <span t-esc="invoice.number"/>
                                 </h4>
                             </div>
-                            <div class="col-md-6 col-sm-6 col-xs-12 hidden-print" id="action_buttons">
-                                <ul class="list-inline pull-right">
-                                    <li class="o_download_button">
-                                        <a target="_blank" t-att-href="'/my/invoices/pdf/%s' % invoice.id" title="Download">
-                                            <i class="fa fa-download fa-2x" aria-hidden="true"/>
-                                        </a>
-                                    </li>
-                                    <li class="o_print_button">
-                                        <a id="print_iframe" title="Print">
-                                            <i class="fa fa-print fa-2x" aria-hidden="true"/>
-                                        </a>
-                                    </li>
-                                </ul>
+                            <div class="col-md-6 col-sm-6 col-xs-12 hidden-print" id="o_portal_account_actions">
+                                <a target="_blank" t-att-href="'/my/invoices/pdf/%s?%s' % (invoice.id, keep_query())" class="pull-right" title="Download">
+                                    <i class="fa fa-download fa-2x" aria-hidden="true"/>
+                                </a>
                             </div>
                         </div>
                     </div>
@@ -109,23 +100,25 @@
 
     <template id="portal_invoice_report" name="Invoice Portal Report">
         <div class="row">
-            <div class="col-xs-5 col-xs-offset-7">
+            <div class="col-xs-7">
+                <h4>
+                <span t-if="invoice.type == 'out_invoice' and (invoice.state == 'open' or invoice.state == 'paid')">Invoice</span>
+                <span t-if="invoice.type == 'out_invoice' and invoice.state == 'draft'">Draft Invoice</span>
+                <span t-if="invoice.type == 'out_invoice' and invoice.state == 'cancel'">Cancelled Invoice</span>
+                <span t-if="invoice.type == 'out_refund'">Credit Note</span>
+                <span t-if="invoice.type == 'in_refund'">Vendor Credit Note</span>
+                <span t-if="invoice.type == 'in_invoice'">Vendor Bill</span>
+                <span t-field="invoice.number"/>
+                </h4>
+            </div>
+            <div class="col-xs-5">
+                <strong>Customer Address</strong>
                 <address t-field="invoice.partner_id"
                     t-options='{"widget": "contact", "fields": ["address", "name"], "no_marker": True}' />
                 <div t-if="invoice.partner_id.vat" class="mt16">VAT: <span t-field="invoice.partner_id.vat"/></div>
             </div>
         </div>
 
-        <h2>
-            <span t-if="invoice.type == 'out_invoice' and (invoice.state == 'open' or invoice.state == 'paid')">Invoice</span>
-            <span t-if="invoice.type == 'out_invoice' and invoice.state == 'draft'">Draft Invoice</span>
-            <span t-if="invoice.type == 'out_invoice' and invoice.state == 'cancel'">Cancelled Invoice</span>
-            <span t-if="invoice.type == 'out_refund'">Credit Note</span>
-            <span t-if="invoice.type == 'in_refund'">Vendor Credit Note</span>
-            <span t-if="invoice.type == 'in_invoice'">Vendor Bill</span>
-            <span t-field="invoice.number"/>
-        </h2>
-
         <div class="row mt32 mb32">
             <div class="col-xs-2" t-if="invoice.name">
                 <strong>Description:</strong>