From b6fb290763a28bd524b4fb537ccb4e226c1596be Mon Sep 17 00:00:00 2001
From: Thomas NOEL <tnoel@entrouvert.com>
Date: Mon, 23 Jan 2017 17:20:11 +0100
Subject: [PATCH] workflows: add redirect to url action (#11245)

---
 tests/test_workflows.py   | 23 ++++++++++++++++++++
 wcs/wf/redirect_to_url.py | 54 +++++++++++++++++++++++++++++++++++++++++++++++
 wcs/workflows.py          |  1 +
 3 files changed, 78 insertions(+)
 create mode 100644 wcs/wf/redirect_to_url.py

diff --git a/tests/test_workflows.py b/tests/test_workflows.py
index b30e398f..80839446 100644
--- a/tests/test_workflows.py
+++ b/tests/test_workflows.py
@@ -35,6 +35,7 @@ from wcs.wf.wscall import WebserviceCallStatusItem
 from wcs.wf.export_to_model import transform_to_pdf
 from wcs.wf.geolocate import GeolocateWorkflowStatusItem
 from wcs.wf.backoffice_fields import SetBackofficeFieldsWorkflowStatusItem
+from wcs.wf.redirect_to_url import RedirectToUrlWorkflowStatusItem
 
 from utilities import (create_temporary_pub, MockSubstitutionVariables, emails,
         http_requests, clean_temporary_pub, sms_mocking)
@@ -2193,3 +2194,25 @@ def test_set_backoffice_field_items(pub):
     formdata = formdef.data_class().get(formdata.id)
     assert formdata.data['bo1'] == ['a', 'b']
     assert formdata.data['bo1_display'] == 'aa, bb'
+
+def test_redirect_to_url(pub):
+    formdef = FormDef()
+    formdef.name = 'baz'
+    formdef.fields = [
+        StringField(id='1', label='Test', type='string', varname='foo'),
+    ]
+    formdef.store()
+
+    formdata = formdef.data_class()()
+    formdata.data = {'1': 'bar'}
+
+    item = RedirectToUrlWorkflowStatusItem()
+    assert item.render_as_line() == 'Redirect to URL (not configured)'
+    item.url = 'https://www.example.net/?foo=[form_var_foo]'
+    assert item.render_as_line() == 'Redirect to URL "https://www.example.net/?foo=[form_var_foo]"'
+    pub.substitutions.feed(formdata)
+    assert item.perform(formdata) == 'https://www.example.net/?foo=bar'
+
+    item.url = '[if-any nada]https://www.example.net/[end]'
+    pub.substitutions.feed(formdata)
+    assert item.perform(formdata) == None
diff --git a/wcs/wf/redirect_to_url.py b/wcs/wf/redirect_to_url.py
new file mode 100644
index 00000000..9cca2a7b
--- /dev/null
+++ b/wcs/wf/redirect_to_url.py
@@ -0,0 +1,54 @@
+# w.c.s. - web application for online forms
+# Copyright (C) 2005-2017  Entr'ouvert
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+
+from qommon.form import ComputedExpressionWidget
+from wcs.workflows import WorkflowStatusItem, register_item_class
+
+
+class RedirectToUrlWorkflowStatusItem(WorkflowStatusItem):
+    description = N_('Redirect to URL')
+    key = 'redirect_to_url'
+    endpoint = False
+    support_substitution_variables = True
+
+    url = None
+
+    def render_as_line(self):
+        if self.url:
+            return _('Redirect to URL "%s"') % self.url
+        else:
+            return _('Redirect to URL (not configured)')
+
+    def get_parameters(self):
+        return ('url',)
+
+    def add_parameters_widgets(self, form, parameters, prefix='', formdef=None):
+        if 'url' in parameters:
+            widget = form.add(ComputedExpressionWidget, '%surl' % prefix,
+                     title=_('URL'), value=self.url,
+                     hint=_('Common substitution variables are available with the [variable] syntax.'))
+            widget.extra_css_class = 'grid-1-1'
+
+    def perform(self, formdata):
+        if not self.url:
+            # action not yet configured: don't redirect
+            return
+        url = self.compute(self.url)
+        if not url:
+            return # don't redirect
+        return url
+
+register_item_class(RedirectToUrlWorkflowStatusItem)
diff --git a/wcs/workflows.py b/wcs/workflows.py
index 9acea891..4191cad3 100644
--- a/wcs/workflows.py
+++ b/wcs/workflows.py
@@ -2393,5 +2393,6 @@ def load_extra():
     import wf.criticality
     import wf.profile
     import wf.backoffice_fields
+    import wf.redirect_to_url
 
 from wf.export_to_model import ExportToModel
-- 
2.11.0