284 lines
12 KiB
Python
284 lines
12 KiB
Python
# combo - content management system
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# Copyright (C) 2014-2017 Entr'ouvert
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Affero General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from django.contrib.auth.models import Group
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from django.contrib.contenttypes import fields
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from django.contrib.contenttypes.models import ContentType
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from django.db import models
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from django.utils.translation import ugettext_lazy as _
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from django import template
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from django.http import HttpResponse
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from django.core.exceptions import PermissionDenied
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from django.utils.functional import cached_property
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from django.utils.http import quote
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from django.shortcuts import get_object_or_404
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from django.template import RequestContext, Template
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from jsonfield import JSONField
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from combo.utils import requests
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from combo.data.models import CellBase, Page
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from combo.data.library import register_cell_class
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from combo.utils import get_templated_url
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from . import engines
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def get_root_page_and_children(service_slug):
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if not service_slug.startswith('_text_page_'):
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return
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page_slug = service_slug.replace('_text_page_', '')
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try:
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root_page = Page.objects.get(slug=page_slug, sub_slug='')
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except (Page.DoesNotExist, Page.MultipleObjectsReturned):
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return
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return root_page.get_descendants_and_me()
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@register_cell_class
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class SearchCell(CellBase):
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template_name = 'combo/search-cell.html'
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manager_form_template = 'combo/manager/search-cell-form.html'
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exclude_from_search = True
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_search_services = JSONField(_('Search Services'), default=dict, blank=True)
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autofocus = models.BooleanField(_('Autofocus'), default=False)
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input_placeholder = models.CharField(_('Placeholder'), max_length=64, default="", blank=True)
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class Meta:
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verbose_name = _('Search')
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def is_visible(self, **kwargs):
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if not self._search_services.get('data'):
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return False
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return super(SearchCell, self).is_visible(**kwargs)
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def get_default_form_class(self):
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from .forms import SearchCellForm
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return SearchCellForm
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@property
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def varname(self):
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if self.slug:
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# no hyphen in varname, could be used in context and templates
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return self.slug.replace('-', '_')
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return ''
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@cached_property
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def search_services(self):
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services = []
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for service_slug in self._search_services.get('data') or []:
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service = engines.get(service_slug)
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if service_slug.startswith('_text_page_'):
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service = engines.get('_text')
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if service_slug.startswith('cards:'):
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parts = service_slug.split(':')
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without_user = False
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if parts[2].endswith('__without-user__'):
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without_user = True
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parts[2] = parts[2].replace('__without-user__', '')
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if not service:
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# retry with cleaned parts
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service = engines.get(':'.join(parts[:3]))
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if not service:
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# still not found
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continue
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if len(parts) > 3:
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custom_views_by_id = {c['id']: c['text'] for c in service.get('custom_views') or []}
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service['label'] = '%s - %s' % (service['label'], custom_views_by_id.get(parts[3]))
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service['selected_custom_view'] = parts[3]
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if without_user:
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service['without_user'] = True
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service['label'] = '%s (%s)' % (service['label'], _('logged-in user ignored'))
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if service and (service.get('url') or service.get('function')):
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service['slug'] = service_slug
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service['options'] = self._search_services.get('options', {}).get(service_slug)
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services.append(service)
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return services
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@cached_property
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def available_engines(self):
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all_engines = engines.get_engines()
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# always remove _text engine: we can add search on page and sub pages
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current_engines = [e['slug'] for e in self.search_services if e['slug'] != '_text' and not e['slug'].startswith('cards:')]
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return {k: v for k, v in all_engines.items() if k not in current_engines}
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def get_search_services_for_display(self):
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# get pages for _text engines
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page_slugs = [
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e['slug'].replace('_text_page_', '') for e in self.search_services
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if e['slug'].startswith('_text_page_')]
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pages = (
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Page.objects
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.filter(snapshot__isnull=True, sub_slug='', slug__in=page_slugs)
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.values('slug', 'title'))
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pages_by_slug = {'_text_page_%s' % p['slug']: p['title'] for p in pages}
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services = []
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for service in self.search_services:
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label = service['label']
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if service['slug'] in pages_by_slug:
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label = _('Page "%(page)s" and sub pages Contents') % {'page': pages_by_slug[service['slug']]}
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services.append((service['slug'], label, service['options']))
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return services
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@property
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def has_multiple_search_services(self):
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return len(self._search_services.get('data') or []) > 1
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@classmethod
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def get_cells_by_search_service(cls, search_service):
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for cell in cls.objects.all():
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if search_service in (cell._search_services.get('data') or []):
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yield cell
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def modify_global_context(self, context, request):
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# if self.varname is in the query string (of the page),
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# add it to the global context; so it can be used by others cells
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# for example by a JsonCell with ...[self.varname]... in its URL
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if self.varname and self.varname in request.GET:
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context[self.varname] = request.GET.get(self.varname)
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def get_cell_extra_context(self, context):
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extra_context = super(SearchCell, self).get_cell_extra_context(context)
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# if there is a q_<slug> in query_string, send it to the template (to be
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# used as an initial query) and remove it from query_string
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initial_q = None
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initial_query_string = None
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if context.get('request'):
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request_get = context['request'].GET.copy()
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if self.varname and context.get('request'):
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q_varname = 'q_%s' % self.varname
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if q_varname in request_get:
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initial_q = request_get[q_varname]
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del request_get[q_varname]
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initial_query_string = request_get.urlencode()
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extra_context.update({
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'initial_q': initial_q,
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'initial_query_string': initial_query_string
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})
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return extra_context
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@classmethod
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def ajax_results_view(cls, request, cell_pk, service_slug):
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cell = get_object_or_404(cls, pk=cell_pk)
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if not cell.is_visible(user=request.user) or not cell.page.is_visible(request.user):
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raise PermissionDenied
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query = request.GET.get('q')
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def render_response(service=None, results=None, pages=None):
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service = service or {}
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results = results or {'err': 0, 'data': []}
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template_names = ['combo/search-cell-results.html']
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if cell.slug:
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template_names.insert(0, 'combo/cells/%s/search-cell-results.html' % cell.slug)
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tmpl = template.loader.select_template(template_names)
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service_label = service.get('label')
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if pages:
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service_label = _('Page "%(page)s" and sub pages Contents') % {'page': pages[0].title}
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try:
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# optional label defined with engine
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if service['options']['title']:
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service_label = service['options']['title']
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except (KeyError, TypeError):
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pass
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context = {
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'cell': cell,
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'results': results,
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'search_service': service,
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'search_service_label': service_label,
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'query': query
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}
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return HttpResponse(tmpl.render(context, request), content_type='text/html')
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for service in cell.search_services:
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if service.get('slug') == service_slug:
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break
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else:
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return render_response()
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if not query:
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return render_response(service)
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pages = None
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if service.get('function'): # internal search engine
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pages = get_root_page_and_children(service_slug)
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results = {'data': service['function'](request, query, pages=pages)}
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else:
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url = get_templated_url(service['url'],
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context={'request': request, 'q': query, 'search_service': service})
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if '%(q)s' in url:
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# escape percent signs by doubling them, then restore %(q)s
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url = url.replace('%', '%%').replace('%%(q)s', '%(q)s')
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url = url % {'q': quote(query.encode('utf-8'))}
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if url.startswith('/'):
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url = request.build_absolute_uri(url)
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if not url:
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return render_response(service)
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kwargs = {}
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kwargs['cache_duration'] = service.get('cache_duration', 0)
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kwargs['remote_service'] = 'auto' if service.get('signature') else None
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# don't automatically add user info to query string, if required it can
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# be set explicitely in the URL template in the engine definition (via
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# {{user_nameid}} or {{user_email}}).
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kwargs['without_user'] = True
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# don't send error traces on HTTP errors
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kwargs['log_errors'] = 'warn'
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response = requests.get(url, **kwargs)
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try:
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results = response.json()
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except ValueError:
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return render_response(service)
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if service.get('data_key'):
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results['data'] = results.get(service['data_key']) or []
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hit_templates = {}
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if service.get('hit_url_template'):
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hit_templates['url'] = Template(service['hit_url_template'])
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if service.get('hit_label_template'):
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hit_templates['text'] = Template(service['hit_label_template'])
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if service.get('hit_description_template'):
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hit_templates['description'] = Template(service['hit_description_template'])
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if hit_templates:
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for hit in results.get('data') or []:
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for k, v in hit_templates.items():
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hit[k] = v.render(RequestContext(request, hit))
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return render_response(service, results, pages=pages)
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def has_text_search_service(self):
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return any(key.startswith('_text') for key in self._search_services.get('data', []))
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def missing_index(self):
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return IndexedCell.objects.all().count() == 0
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class IndexedCell(models.Model):
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cell_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
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cell_pk = models.PositiveIntegerField(null=True)
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cell = fields.GenericForeignKey('cell_type', 'cell_pk')
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page = models.ForeignKey(Page, on_delete=models.CASCADE, blank=True, null=True)
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url = models.CharField(max_length=500, blank=True, null=True)
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title = models.CharField(max_length=500, blank=True, null=True)
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indexed_text = models.TextField(blank=True, null=True)
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public_access = models.BooleanField(default=False)
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restricted_groups = models.ManyToManyField(Group, blank=True, related_name='+')
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excluded_groups = models.ManyToManyField(Group, blank=True, related_name='+')
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last_update_timestamp = models.DateTimeField(auto_now=True)
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