Files
mayan-edms/mayan/apps/document_states/workflow_actions.py
2019-11-09 02:17:15 -04:00

243 lines
9.0 KiB
Python

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
from .exceptions import WorkflowStateActionError
logger = logging.getLogger(__name__)
DEFAULT_TIMEOUT = 4 # 4 seconds
class DocumentPropertiesEditAction(WorkflowAction):
fields = {
'document_label': {
'label': _('Document label'),
'class': 'django.forms.CharField', 'kwargs': {
'help_text': _(
'The new label to be assigned to the document. Can be a '
'string or a template.'
), 'required': False
},
}, 'document_description': {
'label': _('Document description'),
'class': 'django.forms.CharField', 'kwargs': {
'help_text': _(
'The new description to be assigned to the document. '
'Can be a string or a template.'
), 'required': False
},
},
}
field_order = ('document_label', 'document_description')
label = _('Modify document properties')
widgets = {
'document_description': {
'class': 'django.forms.widgets.Textarea', 'kwargs': {
'attrs': {'rows': '10'},
}
}
}
def execute(self, context):
self.document_label = self.form_data.get('document_label')
self.document_description = self.form_data.get('document_description')
new_label = None
new_description = None
if self.document_label:
try:
new_label = Template(self.document_label).render(
context=Context(context)
)
except Exception as exception:
raise WorkflowStateActionError(
_('Document label template error: %s') % exception
)
logger.debug('Document label result: %s', new_label)
if self.document_description:
try:
new_description = Template(self.document_description or '{}').render(
context=Context(context)
)
except Exception as exception:
raise WorkflowStateActionError(
_('Document description template error: %s') % exception
)
logger.debug('Document description template result: %s', new_description)
if new_label or new_description:
document = context['document']
document.label = new_label or document.label
document.description = new_description or document.description
document.save()
class HTTPPostAction(WorkflowAction):
fields = {
'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
},
}, 'timeout': {
'label': _('Timeout'),
'class': 'django.forms.IntegerField', 'default': DEFAULT_TIMEOUT,
'help_text': _(
'Time in seconds to wait for a response. Can be a static '
'value or a template. '
),
'required': True
}, '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
},
}, 'username': {
'label': _('Username'),
'class': 'django.forms.CharField', 'kwargs': {
'help_text': _(
'Username to use for making the request with HTTP Basic '
'Auth. Can be a static value 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.'
), 'max_length': 192, 'required': False
},
}, 'password': {
'label': _('Password'),
'class': 'django.forms.CharField', 'kwargs': {
'help_text': _(
'Password to use for making the request with HTTP Basic '
'Auth. Can be a static value 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.'
), 'max_length': 192, 'required': False
},
}, 'headers': {
'label': _('Headers'),
'class': 'django.forms.CharField', 'kwargs': {
'help_text': _(
'Headers to send with the HTTP request. Must be in JSON '
'format. Can be a static value 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': False
},
}
}
field_order = (
'url', 'username', 'password', 'headers', 'timeout', 'payload'
)
label = _('Perform a POST request')
widgets = {
'payload': {
'class': 'django.forms.widgets.Textarea', 'kwargs': {
'attrs': {'rows': '10'},
}
},
'headers': {
'class': 'django.forms.widgets.Textarea', 'kwargs': {
'attrs': {'rows': '10'},
}
}
}
def render_load(self, field_name, context):
"""
Method to perform a template render and subsequent JSON load.
"""
render_result = self.render(
field_name=field_name, context=context
) or '{}'
try:
load_result = json.loads(render_result, strict=False)
except Exception as exception:
raise WorkflowStateActionError(
_('%(field_name)s JSON error: %(exception)s') % {
'field_name': field_name, 'exception': exception
}
)
logger.debug('load result: %s', load_result)
return load_result
def render(self, field_name, context):
try:
result = Template(self.form_data.get(field_name, '')).render(
context=Context(context)
)
except Exception as exception:
raise WorkflowStateActionError(
_('%(field_name)s template error: %(exception)s') % {
'field_name': field_name, 'exception': exception
}
)
logger.debug('%s template result: %s', field_name, result)
return result
def execute(self, context):
url = self.render(field_name='url', context=context)
username = self.render(field_name='username', context=context)
password = self.render(field_name='password', context=context)
timeout = self.render(field_name='timeout', context=context)
headers = self.render_load(field_name='headers', context=context)
payload = self.render_load(field_name='payload', context=context)
if '.' in timeout:
timeout = float(timeout)
elif timeout:
timeout = int(timeout)
else:
timeout = None
authentication = None
if username or password:
authentication = requests.auth.HTTPBasicAuth(
username=username, password=password
)
requests.post(
url=url, json=payload, timeout=timeout,
auth=authentication, headers=headers
)