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|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2013-2016 Étienne Loks <etienne.loks_AT_peacefrogsDOTnet>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# See the file COPYING for details.
from csv import QUOTE_ALL
import datetime
from functools import wraps
from itertools import chain
import hashlib
import os
import random
import requests
import shutil
import subprocess
import tempfile
from django import forms
from django.conf import settings
from django.conf.urls import url
from django.contrib.contenttypes.models import ContentType
from django.contrib.gis.geos import GEOSGeometry
from django.contrib.sessions.backends.db import SessionStore
from django.core.cache import cache
from django.core.files import File
from django.core.urlresolvers import reverse
from django.http import HttpResponseRedirect
from django.utils.datastructures import MultiValueDict as BaseMultiValueDict
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext_lazy as _, ugettext
from django.template.defaultfilters import slugify
class BColors:
"""
Bash colors. Don't forget to finish your colored string with ENDC.
"""
HEADER = '\033[95m'
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
FAIL = '\033[91m'
ENDC = '\033[0m'
BOLD = '\033[1m'
UNDERLINE = '\033[4m'
CSV_OPTIONS = {'delimiter': ',', 'quotechar': '"', 'quoting': QUOTE_ALL}
def check_rights(rights=[], redirect_url='/'):
"""
Decorator that checks the rights to access the view.
"""
def decorator(view_func):
def _wrapped_view(request, *args, **kwargs):
if not rights:
return view_func(request, *args, **kwargs)
if hasattr(request.user, 'ishtaruser'):
if request.user.ishtaruser.has_right('administrator',
request.session):
kwargs['current_right'] = 'administrator'
return view_func(request, *args, **kwargs)
for right in rights:
# be careful to put the more permissive rights first
# if granted it can allow more
if request.user.ishtaruser.has_right(right,
request.session):
kwargs['current_right'] = right
return view_func(request, *args, **kwargs)
put_session_message(
request.session.session_key,
_(u"You don't have sufficient permissions to do this action."),
'warning'
)
return HttpResponseRedirect(redirect_url)
return _wrapped_view
return decorator
def check_rights_condition(rights):
"""
To be used to check in wizard condition_dict
"""
def func(self):
request = self.request
if request.user.ishtaruser.has_right('administrator', request.session):
return True
for right in rights:
if request.user.ishtaruser.has_right(right, request.session):
return True
return False
return func
def check_model_access_control(request, model, available_perms=None):
"""
Check access control to a model for a specific request
:param request: the current request
:param model: the concerned model
:param available_perms: specific permissions to check if not specified
"view" and "view_own" will be checked
:return: (allowed, own) tuple
"""
own = True # more restrictive by default
allowed = False
if not request.user.is_authenticated():
return allowed, own
if not available_perms:
available_perms = ['view_' + model.__name__.lower(),
'view_own_' + model.__name__.lower()]
if request.user.ishtaruser.has_right('administrator',
session=request.session):
allowed = True
own = False
return allowed, own
for perm, lbl in model._meta.permissions:
if perm not in available_perms:
continue
if request.user.ishtaruser.person.has_right(
perm, session=request.session):
allowed = True
if "_own_" not in perm:
own = False
break # max right reach
return allowed, own
class MultiValueDict(BaseMultiValueDict):
def get(self, *args, **kwargs):
v = super(MultiValueDict, self).getlist(*args, **kwargs)
if callable(v):
v = v()
if type(v) in (list, tuple) and len(v) > 1:
v = ",".join(v)
elif type(v) not in (int, unicode):
v = super(MultiValueDict, self).get(*args, **kwargs)
return v
def getlist(self, *args, **kwargs):
lst = super(MultiValueDict, self).getlist(*args, **kwargs)
if type(lst) not in (tuple, list):
lst = [lst]
return lst
def is_downloadable(url):
"""
Does the url contain a downloadable resource
"""
h = requests.head(url, allow_redirects=True)
header = h.headers
content_type = header.get('content-type')
if 'text' in content_type.lower():
return False
if 'html' in content_type.lower():
return False
return True
def get_current_year():
return datetime.datetime.now().year
def get_cache(cls, extra_args=tuple(), app_label=None):
if not app_label:
app_label = cls._meta.app_label
cache_key = u"{}-{}-{}".format(
settings.PROJECT_SLUG, app_label, cls.__name__)
for arg in extra_args:
if not arg:
cache_key += '-0'
else:
if type(arg) == dict:
cache_key += '-' + "_".join([unicode(arg[k]) for k in arg])
elif type(arg) in (list, tuple):
cache_key += '-' + "_".join([unicode(v) for v in arg])
else:
cache_key += '-' + unicode(arg)
cache_key = slugify(cache_key)
if not cache_key.endswith('_current_keys') \
and hasattr(cls, '_add_cache_key_to_refresh'):
cls._add_cache_key_to_refresh(extra_args)
if len(cache_key) >= 250:
m = hashlib.md5()
m.update(cache_key)
cache_key = m.hexdigest()
return cache_key, cache.get(cache_key)
def force_cached_label_changed(sender, **kwargs):
if not kwargs.get('instance'):
return
kwargs['instance']._cached_label_checked = False
cached_label_changed(sender, **kwargs)
def cached_label_changed(sender, **kwargs):
if not kwargs.get('instance'):
return
instance = kwargs.get('instance')
if hasattr(instance, 'test_obj'):
instance.test_obj.reached(sender, **kwargs)
if hasattr(instance, '_cached_label_checked') \
and instance._cached_label_checked:
return
instance._cached_label_checked = True
cached_labels = ['cached_label']
if hasattr(sender, 'CACHED_LABELS'):
cached_labels = sender.CACHED_LABELS
changed = False
for cached_label in cached_labels:
lbl = getattr(instance, '_generate_' + cached_label)()
if lbl != getattr(instance, cached_label):
setattr(instance, cached_label, lbl)
changed = True
if changed:
instance._search_updated = False
if hasattr(instance, '_cascade_change') and instance._cascade_change:
instance.skip_history_when_saving = True
instance.save()
updated = False
if hasattr(instance, 'update_search_vector'):
updated = instance.update_search_vector()
if hasattr(instance, '_cached_labels_bulk_update'):
updated = instance._cached_labels_bulk_update() or updated
if not updated and hasattr(instance, '_get_associated_cached_labels'):
for item in instance._get_associated_cached_labels():
item._cascade_change = True
if hasattr(instance, 'test_obj'):
item.test_obj = instance.test_obj
cached_label_changed(item.__class__, instance=item)
def regenerate_all_cached_labels(model):
"""
When the rule for generating cached label change. Regeneration of all
label has to be done.
:param model: model class conecrned
"""
for item in model.all():
item.skip_history_when_saving = True
cached_label_changed(model, instance=item)
SHORTIFY_STR = ugettext(" (...)")
def shortify(lbl, number=20):
if not lbl:
lbl = ''
if len(lbl) <= number:
return lbl
return lbl[:number - len(SHORTIFY_STR)] + SHORTIFY_STR
def mode(array):
most = max(list(map(array.count, array)))
return list(set(filter(lambda x: array.count(x) == most, array)))
def disable_for_loaddata(signal_handler):
"""
Decorator that turns off signal handlers when loading fixture data.
"""
@wraps(signal_handler)
def wrapper(*args, **kwargs):
if kwargs.get('raw'):
return
signal_handler(*args, **kwargs)
return wrapper
def _get_image_link(doc):
# manage missing images
if not doc.thumbnail or not doc.thumbnail.url or not doc.image \
or not doc.image.url:
return ""
item = None
for related_key in doc.__class__.RELATED_MODELS:
q = getattr(doc, related_key)
if q.count():
item = q.all()[0]
break
if not item:
# image attached to nothing...
return ""
return mark_safe(u"""
<div class="col col-lg-3">
<div class="card">
<div id="lightgallery-rand-img">
<a href="{}">
<img class="card-img-top" src="{}"/>
</a>
</div>
<div class="card-body">
<h4 class="card-title">{}</h4>
<p class="card-text">{}</p>
<a href="#" onclick="load_window(\'{}\')" class="btn btn-info">
<i class="fa fa-info-circle" aria-hidden="true"></i> {}
</a>
<a href="." title="{}" class="btn btn-secondary">
<i class="fa fa-random" aria-hidden="true"></i>
</a><br/>
</div>
</div>
</div>
<script type="text/javascript">
lightGallery(document.getElementById('lightgallery-rand-img'));
</script>""".format(
doc.image.url,
doc.thumbnail.url,
unicode(item.__class__._meta.verbose_name),
unicode(item),
reverse(item.SHOW_URL, args=[item.pk, '']),
unicode(_(u"Information")),
unicode(_(u"Load another random image?"))))
def get_random_item_image_link(request):
from ishtar_common.models import Document
if not request.user.has_perm('ishtar_common.view_document'):
return ''
q = Document.objects.filter(
thumbnail__isnull=False,
image__isnull=False
).exclude(thumbnail='').exclude(image='')
total = q.count()
if not total:
return ''
image_nb = random.randint(0, total)
return _get_image_link(q.all()[image_nb])
def convert_coordinates_to_point(x, y, z=None, srid=4326):
if z:
geom = GEOSGeometry('POINT({} {} {})'.format(x, y, z), srid=srid)
else:
geom = GEOSGeometry('POINT({} {})'.format(x, y), srid=srid)
if not geom.valid:
raise forms.ValidationError(geom.valid_reason)
return geom
def post_save_point(sender, **kwargs):
"""
Convert raw x, y, z point to real geo field
"""
if not kwargs.get('instance'):
return
instance = kwargs.get('instance')
point = None
point_2d = None
if instance.x and instance.y and \
instance.spatial_reference_system and \
instance.spatial_reference_system.auth_name == 'EPSG' and \
instance.spatial_reference_system.srid != 0:
point_2d = convert_coordinates_to_point(
instance.x, instance.y, srid=instance.spatial_reference_system.srid)
if instance.z:
point = convert_coordinates_to_point(
instance.x, instance.y, instance.z,
srid=instance.spatial_reference_system.srid)
if point_2d != instance.point_2d or point != instance.point:
instance.point = point
instance.point_2d = point_2d
instance.skip_history_when_saving = True
instance.save()
return
def create_slug(model, name, slug_attr='slug', max_length=100):
base_slug = slugify(name)
slug = base_slug[:max_length]
final_slug = None
idx = 1
while not final_slug:
if slug and not model.objects.filter(**{slug_attr:slug}).exists():
final_slug = slug
break
slug = base_slug[:(max_length - 1 - len(str(idx)))] + "-" + str(idx)
idx += 1
return final_slug
def get_all_field_names(model):
return list(set(chain.from_iterable(
(field.name, field.attname) if hasattr(field, 'attname') else (
field.name,)
for field in model._meta.get_fields()
if not (field.many_to_one and field.related_model is None)
)))
def get_all_related_m2m_objects_with_model(model):
return [
(f, f.model if f.model != model else None)
for f in model._meta.get_fields(include_hidden=True)
if f.many_to_many and f.auto_created
]
def get_all_related_many_to_many_objects(model):
return [
f for f in model._meta.get_fields(include_hidden=True)
if f.many_to_many and f.auto_created
]
def get_all_related_objects(model):
return [
f for f in model._meta.get_fields()
if (f.one_to_many or f.one_to_one)
and f.auto_created and not f.concrete
]
def merge_tsvectors(vectors):
"""
Parse tsvector to merge them in one string
:param vectors: list of tsvector string
:return: merged tsvector
"""
result_dict = {}
for vector in vectors:
if not vector:
continue
current_position = 0
if result_dict:
for key in result_dict:
max_position = max(result_dict[key])
if max_position > current_position:
current_position = max_position
for dct_member in vector.split(" "):
splitted = dct_member.split(':')
key = ":".join(splitted[:-1])
positions = splitted[-1]
key = key[1:-1] # remove quotes
positions = [int(pos) + current_position
for pos in positions.split(',')]
if key in result_dict:
result_dict[key] += positions
else:
result_dict[key] = positions
# {'lamelie': [1, 42, 5]} => {'lamelie': "1,42,5"}
result_dict = {k: ",".join([str(val) for val in result_dict[k]])
for k in result_dict}
# {'lamelie': "1,5", "hagarde": "2", "regarde": "4"} =>
# "'lamelie':1,5 'hagarde':2 'regarde':4"
result = " ".join(["'{}':{}".format(k, result_dict[k])
for k in result_dict])
return result
def put_session_message(session_key, message, message_type):
session = SessionStore(session_key=session_key)
messages = []
if 'messages' in session:
messages = session['messages'][:]
messages.append((unicode(message), message_type))
session['messages'] = messages
session.save()
def put_session_var(session_key, key, value):
session = SessionStore(session_key=session_key)
session[key] = value
session.save()
def get_session_var(session_key, key):
session = SessionStore(session_key=session_key)
if key not in session:
return
return session[key]
def clean_session_cache(session):
# clean session cache
cache_key_list = 'sessionlist-{}'.format(session.session_key)
key_list = cache.get(cache_key_list, [])
for key in key_list:
cache.set(key, None, settings.CACHE_TIMEOUT)
cache.set(cache_key_list, [], settings.CACHE_TIMEOUT)
def get_field_labels_from_path(model, path):
"""
:param model: base model
:param path: list of attribute starting from the base model
:return: list of labels
"""
labels = []
for key in path:
try:
field = model._meta.get_field(key)
except:
labels.append(key)
continue
if hasattr(field, 'verbose_name'):
labels.append(field.verbose_name)
else:
labels.append(key)
return labels
def create_default_areas(models=None, verbose=False):
# can be used on migrations if models are provided
if not models:
from ishtar_common.models import Area, Town, Department, State
else:
Area = models['area']
Town = models['town']
Department = models['department']
State = models['state']
areas = {}
idx = 0
for state in State.objects.all():
slug = 'state-' + slugify(state.label)
area, created = Area.objects.get_or_create(
txt_idx=slug, defaults={'label': state.label})
areas['state-{}'.format(state.pk)] = area
if created:
idx += 1
if verbose:
print("\n* {} state areas added".format(idx))
idx, idx2 = 0, 0
for dep in Department.objects.all():
slug = 'dep-' + slugify(dep.label)
area, created = Area.objects.get_or_create(
txt_idx=slug, defaults={'label': dep.label})
areas['dep-' + dep.number] = area
if created:
idx += 1
if not dep.state_id:
continue
state_slug = 'state-{}'.format(dep.state_id)
if state_slug not in areas:
continue
if area.parent and area.parent.pk == areas[state_slug].pk:
continue
idx2 += 1
area.parent = areas[state_slug]
area.save()
if verbose:
print(
"* {} department areas added with {} associations to state".format(
idx, idx2)
)
idx = 0
for town in Town.objects.all():
if not town.numero_insee or len(town.numero_insee) != 5:
continue
code_dep = 'dep-' + town.numero_insee[:2]
code_dep_dom = 'dep-' + town.numero_insee[:3]
if code_dep in areas:
if not areas[code_dep].towns.filter(pk=town.pk).count():
areas[code_dep].towns.add(town)
idx += 1
elif code_dep_dom in areas:
if not areas[code_dep_dom].towns.filter(pk=town.pk).count():
areas[code_dep_dom].towns.add(town)
idx += 1
if verbose:
print("* {} town associated to department area".format(idx))
def get_relations_for_graph(rel_model, obj_pk, above_relations=None,
equal_relations=None, treated=None, styles=None):
"""
Get all above and equal relations of an object (get all child and parent
relations)
:param rel_model: the relation model concerned
:param obj_pk: id of an object with relations
:param above_relations: list of current above_relations
:param equal_relations: list of current equal_relations
:param treated: treated relation list to prevent circular call
:param styles: current styles
:return: above and equal relations list (each containing lists of two
members)
"""
if not above_relations:
above_relations = []
if not equal_relations:
equal_relations = []
if not treated:
treated = []
if not styles:
styles = {}
if obj_pk in treated:
return above_relations, equal_relations, styles
treated.append(obj_pk)
q = rel_model.objects.filter(
left_record_id=obj_pk,
relation_type__logical_relation__isnull=False
).values('right_record_id', 'relation_type__logical_relation')
if not q.count():
return [], []
for relation in q.all():
logical_relation = relation['relation_type__logical_relation']
right_record = relation['right_record_id']
if not logical_relation:
continue
elif logical_relation == 'above'and \
(obj_pk, right_record) not in above_relations:
above_relations.append((obj_pk, right_record))
elif logical_relation == 'bellow' and \
(right_record, obj_pk) not in above_relations:
above_relations.append((right_record, obj_pk))
elif logical_relation == 'equal' and \
(right_record, obj_pk) not in equal_relations and \
(obj_pk, right_record) not in equal_relations:
equal_relations.append((obj_pk, right_record))
else:
continue
ar, er, substyles = get_relations_for_graph(
rel_model, right_record, above_relations, equal_relations, treated,
styles
)
styles.update(substyles)
error_style = "color=red"
for r in ar:
if r not in above_relations:
above_relations.append(r)
reverse_rel = tuple(reversed(r))
if reverse_rel in above_relations:
# circular
if r not in styles:
styles[r] = []
if reverse_rel not in styles:
styles[reverse_rel] = []
if error_style not in styles[r]:
styles[r].append(error_style)
if error_style not in styles[reverse_rel]:
styles[reverse_rel].append(error_style)
if r[0] == r[1]:
# same entity
if r not in styles:
styles[r] = []
if error_style not in styles[r]:
styles[r].append("color=red")
for r in er:
if r not in equal_relations:
equal_relations.append(r)
return above_relations, equal_relations, styles
def generate_relation_graph(obj, debug=False):
if not settings.DOT_BINARY:
return
model = obj.__class__
rel_model = model._meta.get_field('right_relations').related_model
# get relations
above_relations, equal_relations, styles = get_relations_for_graph(
rel_model, obj.pk)
print(styles)
if not above_relations and not equal_relations:
obj.relation_image = None
obj.save()
return
# generate dotfile
dot_str = "digraph relations {\nnode [shape=box];\n"
rel_str = ""
described = []
for list, directed in ((above_relations, True),
(equal_relations, False)):
if directed:
rel_str += "subgraph Dir {\n"
else:
rel_str += "subgraph NoDir {\nedge [dir=none,style=dashed];\n"
for left_pk, right_pk in list:
if left_pk not in described:
described.append(left_pk)
left = model.objects.get(pk=left_pk)
style = 'label="{}"'.format(left.relation_label)
if left.pk == obj.pk:
style += ',style=filled,fillcolor="#C6C0C0"'
dot_str += u'item{}[{}];\n'.format(left.pk, style)
if right_pk not in described:
described.append(right_pk)
right = model.objects.get(pk=right_pk)
style = 'label="{}"'.format(right.relation_label)
if right.pk == obj.pk:
style += ',style=filled,fillcolor="#C6C0C0"'
dot_str += u'item{}[{}];\n'.format(right.pk, style)
if not directed: # on the same level
rel_str += u"{{rank = same; item{}; item{};}}\n".format(
left_pk, right_pk)
style = ""
if (left_pk, right_pk) in styles:
style = " [{}]".format(", ".join(styles[(left_pk, right_pk)]))
rel_str += u'item{} -> item{}{};\n'.format(left_pk, right_pk, style)
rel_str += "}\n"
dot_str += rel_str + "\n}"
tempdir = tempfile.mkdtemp("-ishtardot")
dot_name = tempdir + os.path.sep + "relations.dot"
with open(dot_name, 'w') as dot_file:
dot_file.write(dot_str)
# execute dot program
args = (settings.DOT_BINARY, "-Tsvg", dot_name)
svg_tmp_name = tempdir + os.path.sep + "relations.svg"
with open(svg_tmp_name, "w") as svg_file:
popen = subprocess.Popen(args, stdout=svg_file)
popen.wait()
with open(svg_tmp_name, "r") as svg_file:
django_file = File(svg_file)
obj.relation_image.save("relations.svg", django_file, save=True)
if debug:
print(u"DOT file: {}. Tmp SVG file: {}.".format(dot_name, svg_tmp_name))
return
shutil.rmtree(tempdir)
def create_default_json_fields(model):
"""
Create default json field configuration in existing database
:param model: model concerned
"""
from ishtar_common.models import JsonDataField
def _get_keys(data, current_path=""):
keys = []
for key in data.keys():
if type(data[key]) == dict:
keys += _get_keys(data[key], current_path + key + "__")
continue
keys.append(current_path + key)
return keys
keys = []
for item in model.objects.all():
for key in _get_keys(item.data):
if key not in keys:
keys.append(key)
content_type = ContentType.objects.get_for_model(model)
for key in keys:
JsonDataField.objects.get_or_create(
content_type=content_type, key=key,
defaults={
'name': u" ".join(key.split('__')).capitalize(),
'value_type': 'T',
'display': False
}
)
def get_urls_for_model(model, views):
"""
Generate get and show url for a model
"""
urls = [
url(r'show-{}/(?P<pk>.+)/(?P<type>.+)?$'.format(model.SLUG),
check_rights(['view_' + model.SLUG, 'view_own_' + model.SLUG])(
getattr(views, 'show_' + model.SLUG)),
name="show-" + model.SLUG),
url(r'^display-{}/(?P<pk>.+)/$'.format(model.SLUG),
check_rights(['view_' + model.SLUG, 'view_own_' + model.SLUG])(
getattr(views, 'display_' + model.SLUG)),
name='display-' + model.SLUG),
url(r'get-{}/(?P<type>.+)?$'.format(model.SLUG),
check_rights(['view_' + model.SLUG, 'view_own_' + model.SLUG])(
getattr(views, 'get_' + model.SLUG)),
name="get-" + model.SLUG),
]
return urls
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