Add HTTP Post workflow action.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/document_states/workflow_actions.py

@@ -0,0 +1,84 @@
+from __future__ import absolute_import, unicode_literals
+
+import logging
+import json
+
+import requests
+
+from django.template import Template, Context
+from django.utils.translation import ugettext_lazy as _
+
+from .classes import WorkflowAction
+
+__all__ = ('HTTPPostAction',)
+logger = logging.getLogger(__name__)
+
+
+class HTTPPostAction(WorkflowAction):
+    fields = (
+        {
+            'name': 'url', 'label': _('URL'),
+            'class': 'django.forms.CharField', 'kwargs': {
+                'help_text': _(
+                    'Can be an IP address, a domain or a template. Templates '
+                    'receive the workflow log entry instance as part of '
+                    'their context via the variable "entry_log". '
+                    'The "entry_log" in turn provides the '
+                    '"workflow_instance", "datetime", "transition", "user", '
+                    'and "comment" attributes.'
+                ),
+                'required': True
+            },
+        }, {
+            'name': 'payload', 'label': _('Payload'),
+            'class': 'django.forms.CharField', 'kwargs': {
+                'help_text': _(
+                    'A JSON document to include in the request. Can also be '
+                    'a template that return a JSON document. Templates '
+                    'receive the workflow log entry instance as part of '
+                    'their context via the variable "entry_log". '
+                    'The "entry_log" in turn provides the '
+                    '"workflow_instance", "datetime", "transition", "user", '
+                    'and "comment" attributes.'
+                ), 'required': False
+            }
+
+        },
+    )
+    label = _('Perform a POST request')
+    widgets = {
+        'payload': {
+            'class': 'django.forms.widgets.Textarea', 'kwargs': {
+                'attrs': {'rows': '10'},
+            }
+        }
+    }
+
+    def __init__(self, url=None, payload=None):
+        self.url = url
+        self.payload = payload
+
+    def get_form_schema(self, request):
+        return {
+            'fields': self.fields,
+            'widgets': self.widgets
+        }
+
+    def execute(self, context):
+        url = Template(self.url).render(
+            context=Context(context)
+        )
+
+        logger.debug('URL template result: %s', url)
+
+        result = Template(self.payload or '{}').render(
+            context=Context(context)
+        )
+
+        logger.debug('payload template result: %s', result)
+
+        payload = json.loads(result)
+
+        logger.debug('payload json result: %s', payload)
+
+        response = requests.post(url=url, data=payload)