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import html2text
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from django.template.loader import render_to_string
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from django.utils.translation import ugettext as _
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from common.utils import get_logger
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from tickets.const import TicketState, TicketType
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from tickets.utils import (
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send_ticket_processed_mail_to_applicant,
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send_ticket_applied_mail_to_assignees
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)
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logger = get_logger(__name__)
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class BaseHandler:
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def __init__(self, ticket):
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self.ticket = ticket
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def on_change_state(self, state):
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self._create_state_change_comment(state)
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handler = getattr(self, f'_on_{state}', lambda: None)
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return handler()
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def _on_pending(self):
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self._send_applied_mail_to_assignees()
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def on_step_state_change(self, step, state):
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self._create_state_change_comment(state)
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handler = getattr(self, f'_on_step_{state}', lambda: None)
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return handler(step)
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def _on_step_approved(self, step):
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next_step = step.next()
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is_finished = not next_step
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if is_finished:
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self._send_processed_mail_to_applicant(step)
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else:
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self._send_processed_mail_to_applicant(step)
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self._send_applied_mail_to_assignees(next_step)
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return is_finished
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def _on_step_rejected(self, step):
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self._send_processed_mail_to_applicant(step)
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def _on_step_closed(self, step):
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self._send_processed_mail_to_applicant()
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def _send_applied_mail_to_assignees(self, step=None):
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if step:
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assignees = [step.assignee for step in step.ticket_assignees.all()]
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else:
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assignees = self.ticket.current_assignees
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assignees_display = ', '.join([str(assignee) for assignee in assignees])
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logger.debug('Send applied email to assignees: {}'.format(assignees_display))
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send_ticket_applied_mail_to_assignees(self.ticket, assignees)
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def _send_processed_mail_to_applicant(self, step=None):
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applicant = self.ticket.applicant
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processor = step.processor if step else applicant
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logger.debug('Send processed mail to applicant: {}'.format(applicant))
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send_ticket_processed_mail_to_applicant(self.ticket, processor)
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def _diff_prev_approve_context(self, state):
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diff_context = {}
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if state != TicketState.approved:
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return diff_context
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if self.ticket.type != TicketType.apply_asset:
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return diff_context
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# 企业微信，钉钉审批不做diff
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if not hasattr(self.ticket, 'old_rel_snapshot'):
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return diff_context
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old_rel_snapshot = self.ticket.old_rel_snapshot
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current_rel_snapshot = self.ticket.get_local_snapshot()
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diff = set(current_rel_snapshot.items()) - set(old_rel_snapshot.items())
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if not diff:
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return diff_context
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content = []
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for k, v in sorted(list(diff), reverse=True):
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content.append([k, old_rel_snapshot[k], v])
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headers = [_('Change field'), _('Before change'), _('After change')]
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return {'headers': headers, 'content': content}
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def _create_state_change_comment(self, state):
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# 打开或关闭工单，备注显示是自己，其他是受理人
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if state in [TicketState.reopen, TicketState.pending, TicketState.closed]:
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user = self.ticket.applicant
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else:
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user = self.ticket.processor
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user_display = str(user)
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state_display = getattr(TicketState, state).label
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approve_info = _('{} {} the ticket').format(user_display, state_display)
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context = self._diff_prev_approve_context(state)
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context.update({'approve_info': approve_info})
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body = self.safe_html_script(
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render_to_string('tickets/ticket_approve_diff.html', context)
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)
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data = {
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'body': body,
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'user': user,
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'user_display': str(user),
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'type': 'state',
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'state': state
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}
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return self.ticket.comments.create(**data)
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@staticmethod
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def safe_html_script(unsafe_html):
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unsafe_html = unsafe_html.replace('\n', '')
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html_str = html2text.html2text(unsafe_html)
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return html_str
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