class EventLog(db.Model, IdModel, DatedModel):
action = db.Column(db.Unicode(255), index=True)
source_ip = db.Column(db.Unicode(255), nullable=True)
path = db.Column(db.Unicode(), nullable=True)
query = db.Column(JSONB)
data = db.Column(JSONB)
role_id = db.Column(db.Integer, db.ForeignKey('role.id'), nullable=True)
@classmethod
def emit(cls,
action,
path,
source_ip=None,
query=None,
data=None,
role_id=None):
event = EventLog()
event.action = action
event.source_ip = source_ip
event.path = path
event.query = query
event.data = data
if role_id is not None:
event.role_id = role_id
db.session.add(event)
return event
def __repr__(self):
return '<EventLog(%r, %r)>' % (self.id, self.action)
class DocumentTag(db.Model, IdModel):
"""A record reflects an entity or tag extracted from a document."""
TEXT_LENGTH = 1024
TYPE_PHONE = 'phone'
TYPE_EMAIL = 'email'
TYPE_PERSON = 'person'
TYPE_ORGANIZATION = 'organization'
TYPE_LOCATION = 'location'
TYPE_IP = 'ip'
TYPE_IBAN = 'iban'
TYPES = {
TYPE_PERSON: exactitude.names,
TYPE_ORGANIZATION: exactitude.names,
TYPE_EMAIL: exactitude.emails,
TYPE_PHONE: exactitude.phones,
TYPE_LOCATION: exactitude.addresses,
TYPE_IP: exactitude.ips,
TYPE_IBAN: exactitude.ibans,
}
id = db.Column(db.BigInteger, primary_key=True)
origin = db.Column(db.Unicode(255), nullable=False, index=True)
type = db.Column(db.Unicode(16), nullable=False)
weight = db.Column(db.Integer, default=1)
text = db.Column(db.Unicode(TEXT_LENGTH), nullable=True)
document_id = db.Column(db.Integer(),
db.ForeignKey('document.id'),
index=True) # noqa
document = db.relationship(
"Document", backref=db.backref('tags',
cascade='all, delete-orphan')) # noqa
@property
def field(self):
type_ = self.TYPES[self.type]
for (candidate, invert) in TYPES.values():
if candidate == type_:
return invert
@classmethod
def delete_by(cls, document_id=None, origin=None, type=None):
pq = db.session.query(cls)
assert document_id or origin or type
if document_id is not None:
pq = pq.filter(cls.document_id == document_id)
if origin is not None:
pq = pq.filter(cls.origin == origin)
if type is not None:
pq = pq.filter(cls.type == type)
pq.delete()
db.session.flush()
def __repr__(self):
return '<DocumentTag(%r,%r)>' % (self.document_id, self.text)
class DocumentTag(db.Model, IdModel):
"""A record reflects an entity or tag extracted from a document."""
TEXT_LENGTH = 1024
TYPE_PHONE = 'phone'
TYPE_EMAIL = 'email'
TYPE_PERSON = 'person'
TYPE_ORGANIZATION = 'organization'
TYPE_LOCATION = 'location'
TYPE_IP = 'ip'
TYPE_IBAN = 'iban'
TYPE_COUNTRY = 'country'
TYPE_LANGUAGE = 'language'
MAPPING = {
TYPE_PERSON: 'namesMentioned',
TYPE_ORGANIZATION: 'namesMentioned',
TYPE_EMAIL: 'emailMentioned',
TYPE_PHONE: 'phoneMentioned',
TYPE_LOCATION: 'locationMentioned',
TYPE_IP: 'ipMentioned',
TYPE_IBAN: 'ibanMentioned',
TYPE_COUNTRY: 'country',
TYPE_LANGUAGE: 'language'
}
id = db.Column(db.BigInteger, primary_key=True)
origin = db.Column(db.Unicode(255), nullable=False, index=True)
type = db.Column(db.Unicode(16), nullable=False)
weight = db.Column(db.Integer, default=1)
text = db.Column(db.Unicode(TEXT_LENGTH), nullable=True)
document_id = db.Column(db.Integer(), db.ForeignKey('document.id'), index=True) # noqa
document = db.relationship("Document", backref=db.backref('tags', cascade='all, delete-orphan')) # noqa
@property
def field(self):
type_ = registry.get(self.type)
if type_ is not None and type_.group is not None:
return type_.group
@classmethod
def delete_by(cls, document_id=None, origin=None, type=None):
pq = db.session.query(cls)
assert document_id or origin or type
if document_id is not None:
pq = pq.filter(cls.document_id == document_id)
if origin is not None:
pq = pq.filter(cls.origin == origin)
if type is not None:
pq = pq.filter(cls.type == type)
pq.delete()
db.session.flush()
def __repr__(self):
return '<DocumentTag(%r,%r)>' % (self.document_id, self.text)
class EntityAsset(Entity):
_schema = 'entity/asset.json#'
__mapper_args__ = {'polymorphic_identity': _schema}
valuation = db.Column(db.Integer, nullable=True)
valuation_currency = db.Column(db.Unicode(100), nullable=True)
valuation_date = db.Column(db.Unicode, nullable=True)
class Link(db.Model, UuidModel, SoftDeleteModel):
type = db.Column(db.String(255), index=True)
source_id = db.Column(db.String(254), index=True)
target_id = db.Column(db.String(254), index=True)
foreign_ids = db.Column(ARRAY(db.Unicode()))
data = db.Column('data', JSONB)
collection_id = db.Column(db.Integer,
db.ForeignKey('collection.id'),
index=True) # noqa
collection = db.relationship(Collection,
backref=db.backref('links',
lazy='dynamic')) # noqa
@property
def schema(self):
return schemata.get(self.type)
def to_dict(self):
data = super(Link, self).to_dict()
data.update({
'schema': self.type,
'data': self.data,
'foreign_ids': self.foreign_ids or [],
'collection_id': self.collection_id
})
return data
def __repr__(self):
return '<Link(%r, %r, %r)>' % (self.id, self.source_id, self.target_id)
class Selector(db.Model):
id = db.Column(db.Integer, primary_key=True)
_text = db.Column('text', db.Unicode, index=True)
normalized = db.Column(db.Unicode, index=True)
created_at = db.Column(db.DateTime, default=datetime.utcnow)
updated_at = db.Column(db.DateTime,
default=datetime.utcnow,
onupdate=datetime.utcnow)
entity_id = db.Column(db.Unicode(50), db.ForeignKey('entity.id'))
entity = db.relationship('Entity',
backref=db.backref(
'selectors',
lazy='dynamic',
cascade='all, delete-orphan')) # noqa
@hybrid_property
def text(self):
return self._text
@text.setter
def text(self, text):
self._text = text
self.normalized = self.normalize(text)
@classmethod
def normalize(cls, text):
return normalize(text)
def __repr__(self):
return '<Selector(%r, %r)>' % (self.entity_id, self.text)
def __unicode__(self):
return self.text
class DocumentPage(db.Model):
id = db.Column(db.BigInteger, primary_key=True)
number = db.Column(db.Integer(), nullable=False)
text = db.Column(db.Unicode(), nullable=False)
document_id = db.Column(db.Integer(), db.ForeignKey('document.id'))
document = db.relationship(
Document, backref=db.backref('pages',
cascade='all, delete-orphan')) # noqa
def __repr__(self):
return '<DocumentPage(%r,%r)>' % (self.document_id, self.number)
def text_parts(self):
"""Utility method to get all text snippets in a record."""
if self.text is not None and len(self.text):
yield self.text
def to_dict(self):
return {
'id': self.id,
'number': self.number,
'text': self.text,
'document_id': self.document_id
}
class DocumentPage(db.Model):
id = db.Column(db.BigInteger, primary_key=True)
number = db.Column(db.Integer(), nullable=False)
text = db.Column(db.Unicode(), nullable=False)
document_id = db.Column(db.Integer(),
db.ForeignKey('document.id'),
index=True) # noqa
document = db.relationship(
Document, backref=db.backref('pages',
cascade='all, delete-orphan')) # noqa
@property
def tid(self):
tid = sha1(str(self.document_id))
tid.update(str(self.id))
return tid.hexdigest()
def __repr__(self):
return '<DocumentPage(%r,%r)>' % (self.document_id, self.number)
def text_parts(self):
"""Utility method to get all text snippets in a record."""
text = string_value(self.text)
if text is not None:
yield self.text
def to_dict(self):
return {
'id': self.id,
'number': self.number,
'text': self.text,
'document_id': self.document_id
}
class ProcessingLog(db.Model, DatedModel):
"""Report any events or errors during processing of documents."""
id = db.Column(db.BigInteger, primary_key=True)
operation = db.Column(db.Unicode, nullable=True, index=True)
component = db.Column(db.Unicode, nullable=True, index=True)
source_location = db.Column(db.Unicode, nullable=True, index=True)
content_hash = db.Column(db.Unicode(65), nullable=True, index=True)
foreign_id = db.Column(db.Unicode, unique=False, nullable=True)
source_id = db.Column(db.Integer, nullable=True)
document_id = db.Column(db.BigInteger, nullable=True)
meta = db.Column(JSONB)
error_type = db.Column(db.Unicode, nullable=True)
error_message = db.Column(db.Unicode, nullable=True)
error_details = db.Column(db.Unicode, nullable=True)
@classmethod
def log(cls,
operation,
component=None,
source_location=None,
content_hash=None,
foreign_id=None,
source_id=None,
document_id=None,
meta=None,
error_type=None,
error_message=None,
error_details=None):
meta = meta or {}
obj = ProcessingLog()
obj.operation = operation
obj.component = component
obj.source_id = source_id
obj.document_id = document_id
obj.meta = meta
source_location = source_location or meta.get('source_path') or \
meta.get('source_url') or meta.get('file_name')
obj.source_location = source_location
obj.content_hash = content_hash or meta.get('content_hash')
obj.foreign_id = foreign_id or meta.get('foreign_id')
obj.error_type = error_type
obj.error_message = error_message
obj.error_details = error_details
session = db.create_scoped_session()
session.add(obj)
session.commit()
session.remove()
def __repr__(self):
return '<ProcessingLog(%r,%r)>' % (self.id, self.content_hash)
def __unicode__(self):
return self.id
def by_foreign_ids(cls, foreign_ids, collection_id, deleted=False):
if not len(foreign_ids):
return None
q = cls.all(deleted=deleted)
q = q.filter(Entity.collection_id == collection_id)
foreign_id = func.cast(foreign_ids, ARRAY(db.Unicode()))
q = q.filter(cls.foreign_ids.contains(foreign_id))
q = q.order_by(Entity.deleted_at.desc().nullsfirst())
return q.first()
def by_foreign_id(cls, foreign_id, collection_id, deleted=False):
foreign_id = string_value(foreign_id)
if foreign_id is None:
return None
q = cls.all(deleted=deleted)
q = q.filter(Entity.collection_id == collection_id)
foreign_id = func.cast([foreign_id], ARRAY(db.Unicode()))
q = q.filter(cls.foreign_ids.contains(foreign_id))
q = q.order_by(Entity.deleted_at.desc().nullsfirst())
return q.first()
class EntityTag(db.Model):
id = db.Column(db.Integer(), primary_key=True)
collection = db.Column(db.Unicode(100))
package_id = db.Column(db.Unicode(100))
entity_id = db.Column(db.Unicode(50), db.ForeignKey('entity.id'))
entity = db.relationship(Entity,
backref=db.backref('tags', lazy='dynamic'))
created_at = db.Column(db.DateTime, default=datetime.utcnow)
@classmethod
def delete_set(cls, collection, package_id):
q = db.session.query(cls)
q = q.filter_by(collection=collection)
q = q.filter_by(package_id=package_id)
q.delete()
@classmethod
def by_package(cls, collection, package_id):
etag = aliased(cls)
ent = aliased(Entity)
q = db.session.query(etag.entity_id, ent.label, ent.category,
ent.list_id)
q = q.join(ent, ent.id == etag.entity_id)
q = q.filter(etag.collection == collection)
q = q.filter(etag.package_id == package_id)
entities = []
for entity_id, label, category, lst in q.all():
entities.append({
'id': entity_id,
'entity': entity_id,
'label': label,
'category': category,
'list': lst
})
return entities
def __repr__(self):
return '<EntityTag(%r, %r)>' % (self.package_id, self.entity_id)
class DocumentTag(db.Model, IdModel):
"""A record reflects an entity or tag extracted from a document."""
TYPE_PHONE = 'phone'
TYPE_EMAIL = 'email'
TYPE_PERSON = 'person'
TYPE_ORGANIZATION = 'organization'
TYPE_LOCATION = 'location'
id = db.Column(db.BigInteger, primary_key=True)
origin = db.Column(db.Unicode(255), nullable=False, index=True)
type = db.Column(db.Unicode(16), nullable=False)
weight = db.Column(db.Integer, default=1)
key = db.Column(db.Unicode(1024), nullable=False, index=True)
text = db.Column(db.Unicode(1024), nullable=True)
document_id = db.Column(db.Integer(),
db.ForeignKey('document.id'),
index=True) # noqa
document = db.relationship(
"Document", backref=db.backref('tags',
cascade='all, delete-orphan')) # noqa
@classmethod
def delete_by(cls, document_id=None, origin=None, type=None):
pq = db.session.query(cls)
assert document_id or origin or type
if document_id is not None:
pq = pq.filter(cls.document_id == document_id)
if origin is not None:
pq = pq.filter(cls.origin == origin)
if type is not None:
pq = pq.filter(cls.type == type)
pq.delete()
db.session.flush()
def __repr__(self):
return '<DocumentTag(%r,%r)>' % (self.document_id, self.key)
class DocumentPage(db.Model):
id = db.Column(db.BigInteger, primary_key=True)
number = db.Column(db.Integer(), nullable=False)
text = db.Column(db.Unicode(), nullable=False)
document_id = db.Column(db.Integer(), db.ForeignKey('document.id'))
document = db.relationship(
Document, backref=db.backref('pages',
cascade='all, delete-orphan')) # noqa
def __repr__(self):
return '<DocumentPage(%r,%r)>' % (self.document_id, self.number)
def to_dict(self):
return {
'id': self.id,
'number': self.number,
'text': self.text,
'document_id': self.document_id
}
def find(cls,
label=None,
category=[],
countries=[],
managed=None,
collection_id=None):
q = db.session.query(cls)
q = q.filter(cls.deleted_at == None) # noqa
if label and len(label.strip()):
label = '%%%s%%' % label.strip()
q = q.filter(cls.label.ilike(label))
q = q.filter(cls.id.in_(collection_id))
if len(category):
q = q.filter(cls.category.in_(category))
if len(countries):
types = cast(countries, ARRAY(db.Unicode()))
q = q.filter(cls.countries.contains(types))
if managed is not None:
q = q.filter(cls.managed == managed)
return q
class Role(db.Model, IdModel, SoftDeleteModel):
"""A user, group or other access control subject."""
__tablename__ = 'role'
USER = '******'
GROUP = 'group'
SYSTEM = 'system'
TYPES = [USER, GROUP, SYSTEM]
SYSTEM_GUEST = 'guest'
SYSTEM_USER = '******'
#: Generates URL-safe signatures for invitations.
SIGNATURE = URLSafeTimedSerializer(settings.SECRET_KEY)
#: Signature maximum age, defaults to 1 day
SIGNATURE_MAX_AGE = 60 * 60 * 24
#: Password minimum length
PASSWORD_MIN_LENGTH = 6
foreign_id = db.Column(db.Unicode(2048), nullable=False, unique=True)
name = db.Column(db.Unicode, nullable=False)
email = db.Column(db.Unicode, nullable=True)
api_key = db.Column(db.Unicode, nullable=True)
is_admin = db.Column(db.Boolean, nullable=False, default=False)
type = db.Column(db.Enum(*TYPES, name='role_type'), nullable=False)
password_digest = db.Column(db.Unicode, nullable=True)
password = None
reset_token = db.Column(db.Unicode, nullable=True)
permissions = db.relationship('Permission', backref='role')
@property
def has_password(self):
return self.password_digest is not None
def update(self, data):
self.name = data.get('name', self.name)
if data.get('password'):
self.set_password(data.get('password'))
def clear_roles(self):
"""Removes any existing roles from group membership."""
self.roles = []
db.session.add(self)
def add_role(self, role):
"""Adds an existing role as a membership of a group."""
self.roles.append(role)
db.session.add(role)
db.session.add(self)
@classmethod
def notifiable(cls):
return cls.all_ids().filter(cls.email != None) # noqa
@classmethod
def by_foreign_id(cls, foreign_id):
if foreign_id is not None:
return cls.all().filter_by(foreign_id=foreign_id).first()
@classmethod
def by_email(cls, email):
if email:
return cls.all().filter_by(email=email)
@classmethod
def by_api_key(cls, api_key):
if api_key is not None:
return cls.all().filter_by(api_key=api_key).first()
@classmethod
def load_or_create(cls, foreign_id, type, name, email=None, is_admin=None):
role = cls.by_foreign_id(foreign_id)
if role is None:
role = cls()
role.foreign_id = foreign_id
role.name = name
role.type = type
role.is_admin = False
if role.api_key is None:
role.api_key = make_textid()
role.email = email
if is_admin is not None:
role.is_admin = is_admin
# see: https://github.com/alephdata/aleph/issues/111
auto_admins = [a.lower() for a in settings.ADMINS]
if email is not None and email.lower() in auto_admins:
role.is_admin = True
db.session.add(role)
db.session.flush()
return role
@classmethod
def load_id(cls, foreign_id, type=None, name=None):
"""Load a role and return the ID.
If type is given and no role is found, a new role will be created.
"""
if not hasattr(current_app, '_authz_roles'):
current_app._authz_roles = {}
if foreign_id not in current_app._authz_roles:
role = cls.by_foreign_id(foreign_id)
if role is None:
if type is None:
return
name = name or foreign_id
role = cls.load_or_create(foreign_id, type, name)
current_app._authz_roles[foreign_id] = role.id
return current_app._authz_roles[foreign_id]
@classmethod
def public_roles(cls):
"""Roles which make a collection to be considered public."""
return set([
cls.load_id(cls.SYSTEM_USER),
cls.load_id(cls.SYSTEM_GUEST),
])
@classmethod
def by_prefix(cls, prefix):
"""Load a list of roles matching a name, email address, or foreign_id.
:param str pattern: Pattern to match.
"""
q = cls.all()
q = q.filter(Role.type == Role.USER)
q = q.filter(
or_(cls.foreign_id.ilike('%' + prefix + '%'),
cls.email.ilike('%' + prefix + '%'),
cls.name.ilike('%' + prefix + '%')))
return q
@classmethod
def all_groups(cls):
return cls.all().filter(Role.type != Role.USER)
def set_password(self, secret):
"""Hashes and sets the role password.
:param str secret: The password to be set.
"""
self.password_digest = generate_password_hash(secret)
def check_password(self, secret):
"""Checks the password if it matches the role password hash.
:param str secret: The password to be checked.
:rtype: bool
"""
return check_password_hash(self.password_digest or '', secret)
def __repr__(self):
return '<Role(%r,%r)>' % (self.id, self.foreign_id)
class Entity(db.Model, UuidModel, SoftDeleteModel):
STATE_ACTIVE = 'active'
STATE_PENDING = 'pending'
STATE_DELETED = 'deleted'
name = db.Column(db.Unicode)
type = db.Column(db.String(255), index=True)
state = db.Column(db.String(128),
nullable=True,
default=STATE_ACTIVE,
index=True) # noqa
foreign_ids = db.Column(ARRAY(db.Unicode()))
data = db.Column('data', JSONB)
collection_id = db.Column(db.Integer,
db.ForeignKey('collection.id'),
index=True) # noqa
collection = db.relationship(Collection,
backref=db.backref('entities',
lazy='dynamic')) # noqa
def delete_references(self, origin=None):
pq = db.session.query(Reference)
pq = pq.filter(Reference.entity_id == self.id)
if origin is not None:
pq = pq.filter(Reference.origin == origin)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete_identities(self):
pq = db.session.query(EntityIdentity)
pq = pq.filter(EntityIdentity.entity_id == self.id)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete(self, deleted_at=None):
self.delete_references()
self.delete_identities()
deleted_at = deleted_at or datetime.utcnow()
for alert in self.alerts:
alert.delete(deleted_at=deleted_at)
self.state = self.STATE_DELETED
super(Entity, self).delete(deleted_at=deleted_at)
@classmethod
def delete_dangling(cls, collection_id):
"""Delete dangling entities.
Entities can dangle in pending state while they have no references
pointing to them, thus making it impossible to enable them. This is
a routine cleanup function.
"""
q = db.session.query(cls)
q = q.filter(cls.collection_id == collection_id)
q = q.filter(cls.state == cls.STATE_PENDING)
q = q.outerjoin(Reference)
q = q.group_by(cls)
q = q.having(func.count(Reference.id) == 0)
for entity in q.all():
entity.delete()
def merge(self, other):
if self.id == other.id:
raise ValueError("Cannot merge an entity with itself.")
if self.collection_id != other.collection_id:
raise ValueError(
"Cannot merge entities from different collections.") # noqa
data = merge_data(self.data, other.data)
if self.name.lower() != other.name.lower():
data = merge_data(data, {'alias': [other.name]})
self.data = data
self.state = self.STATE_ACTIVE
self.foreign_ids = self.foreign_ids or []
self.foreign_ids += other.foreign_ids or []
self.created_at = min((self.created_at, other.created_at))
self.updated_at = datetime.utcnow()
# update alerts
from aleph.model.alert import Alert
q = db.session.query(Alert).filter(Alert.entity_id == other.id)
q.update({'entity_id': self.id})
# update document references
from aleph.model.reference import Reference
q = db.session.query(Reference).filter(Reference.entity_id == other.id)
q.update({'entity_id': self.id})
# delete source entities
other.delete()
db.session.add(self)
db.session.commit()
db.session.refresh(other)
def update(self, entity):
data = entity.get('data') or {}
data['name'] = entity.get('name')
self.data = self.schema.validate(data)
self.name = self.data.pop('name')
fid = [string_value(f) for f in entity.get('foreign_ids') or []]
self.foreign_ids = list(set([f for f in fid if f is not None]))
self.state = entity.pop('state', self.STATE_ACTIVE)
self.updated_at = datetime.utcnow()
db.session.add(self)
@classmethod
def save(cls, data, collection, merge=False):
ent = cls.by_id(data.get('id'))
if ent is None:
ent = cls()
ent.type = data.pop('schema', None)
if ent.type is None:
raise ValueError("No schema provided.")
ent.id = make_textid()
if merge:
data = merge_data(data, ent.to_dict())
if collection is None:
raise ValueError("No collection specified.")
ent.collection = collection
ent.update(data)
return ent
@classmethod
def filter_collections(cls, q, collections=None):
if collections is None:
return q
collection_ids = []
for collection in collections:
if isinstance(collection, Collection):
collection = collection.id
collection_ids.append(collection)
q = q.filter(Entity.collection_id.in_(collection_ids))
return q
@classmethod
def by_id_set(cls, ids, collections=None):
if not len(ids):
return {}
q = cls.all()
q = cls.filter_collections(q, collections=collections)
q = q.options(joinedload('collection'))
q = q.filter(cls.id.in_(ids))
entities = {}
for ent in q:
entities[ent.id] = ent
return entities
@classmethod
def by_foreign_id(cls, foreign_id, collection_id, deleted=False):
foreign_id = string_value(foreign_id)
if foreign_id is None:
return None
q = cls.all(deleted=deleted)
q = q.filter(Entity.collection_id == collection_id)
foreign_id = func.cast([foreign_id], ARRAY(db.Unicode()))
q = q.filter(cls.foreign_ids.contains(foreign_id))
q = q.order_by(Entity.deleted_at.desc().nullsfirst())
return q.first()
@classmethod
def latest(cls):
q = db.session.query(func.max(cls.updated_at))
q = q.filter(cls.state == cls.STATE_ACTIVE)
return q.scalar()
@property
def schema(self):
return schemata.get(self.type)
@property
def terms(self):
terms = set([self.name])
for alias in ensure_list(self.data.get('alias')):
if alias is not None and len(alias):
terms.add(alias)
return terms
@property
def regex_terms(self):
# This is to find the shortest possible regex for each entity.
# If, for example, and entity matches both "Al Qaeda" and
# "Al Qaeda in Iraq, Syria and the Levant", it is useless to
# search for the latter.
terms = set([normalize_strong(t) for t in self.terms])
regex_terms = set()
for term in terms:
if term is None or len(term) < 4 or len(term) > 120:
continue
contained = False
for other in terms:
if other is None or other == term:
continue
if other in term:
contained = True
if not contained:
regex_terms.add(term)
return regex_terms
def to_dict(self):
data = super(Entity, self).to_dict()
data.update({
'schema': self.type,
'name': self.name,
'state': self.state,
'data': self.data,
'foreign_ids': self.foreign_ids or [],
'collection_id': self.collection_id
})
return data
def to_index(self):
entity = self.to_dict()
entity['properties'] = {'name': [self.name]}
for k, v in self.data.items():
v = ensure_list(v)
if len(v):
entity['properties'][k] = v
return entity
def to_ref(self):
return {
'id': self.id,
'label': self.name,
'schema': self.type,
'collection_id': self.collection_id
}
def __unicode__(self):
return self.name
def __repr__(self):
return '<Entity(%r, %r)>' % (self.id, self.name)
class Role(db.Model, IdModel, SoftDeleteModel):
"""A user, group or other access control subject."""
_schema = 'role.json#'
__tablename__ = 'role'
USER = '******'
GROUP = 'group'
SYSTEM = 'system'
TYPES = [USER, GROUP, SYSTEM]
SYSTEM_GUEST = 'guest'
SYSTEM_USER = '******'
foreign_id = db.Column(db.Unicode(2048), nullable=False, unique=True)
name = db.Column(db.Unicode, nullable=False)
email = db.Column(db.Unicode, nullable=True)
api_key = db.Column(db.Unicode, nullable=True)
is_admin = db.Column(db.Boolean, nullable=False, default=False)
type = db.Column(db.Enum(*TYPES, name='role_type'), nullable=False)
permissions = db.relationship("Permission", backref="role")
def update(self, data):
validate(data, self._schema)
self.name = data.get('name', self.name)
self.email = data.get('email', self.email)
def clear_roles(self):
self.roles = []
db.session.add(self)
def add_role(self, role):
self.roles.append(role)
db.session.add(role)
db.session.add(self)
@classmethod
def notifiable(cls):
return cls.all_ids().filter(cls.email != None) # noqa
@classmethod
def by_foreign_id(cls, foreign_id):
if foreign_id is not None:
return cls.all().filter_by(foreign_id=foreign_id).first()
@classmethod
def by_api_key(cls, api_key):
if api_key is not None:
return cls.all().filter_by(api_key=api_key).first()
@classmethod
def load_or_create(cls, foreign_id, type, name, email=None, is_admin=None):
role = cls.by_foreign_id(foreign_id)
if role is None:
role = cls()
role.foreign_id = foreign_id
role.name = name
role.type = type
role.is_admin = False
if role.api_key is None:
role.api_key = uuid4().hex
role.email = email
if is_admin is not None:
role.is_admin = is_admin
# see: https://github.com/pudo/aleph/issues/111
auto_admins = get_config('AUTHZ_ADMINS') or ''
auto_admins = [a.lower() for a in auto_admins.split(',')]
if email is not None and email.lower() in auto_admins:
role.is_admin = True
db.session.add(role)
db.session.flush()
return role
@classmethod
def load_id(cls, foreign_id, type=None, name=None):
"""Load a role and return the ID.
If type is given and no role is found, a new role will be created.
"""
if not hasattr(current_app, '_authz_roles'):
current_app._authz_roles = {}
if foreign_id not in current_app._authz_roles:
role = cls.by_foreign_id(foreign_id)
if role is None:
if type is None:
return
name = name or foreign_id
role = cls.load_or_create(foreign_id, type, name)
current_app._authz_roles[foreign_id] = role.id
return current_app._authz_roles[foreign_id]
def __repr__(self):
return '<Role(%r,%r)>' % (self.id, self.foreign_id)
def __unicode__(self):
return self.name
def to_dict(self):
data = super(Role, self).to_dict()
data.update({
'api_url': url_for('roles_api.view', id=self.id),
'foreign_id': self.foreign_id,
'is_admin': self.is_admin,
'email': self.email,
'name': self.name,
'type': self.type
})
return data
class Export(db.Model, IdModel, DatedModel):
"""A data export run in the background. The data is stored in a cloud
storage bucket and the user is given a link to download the data. The link
expires after a fixed duration and the exported data is deleted."""
DEFAULT_EXPIRATION = timedelta(days=30) # After 30 days
label = db.Column(db.Unicode)
operation = db.Column(db.Unicode)
creator_id = db.Column(db.Integer, db.ForeignKey("role.id"))
creator = db.relationship(Role,
backref=db.backref("exports", lazy="dynamic"))
collection_id = db.Column(db.Integer,
db.ForeignKey("collection.id"),
index=True,
nullable=True)
collection = db.relationship(Collection,
backref=db.backref("exports", lazy="dynamic"))
expires_at = db.Column(db.DateTime, default=None, nullable=True)
deleted = db.Column(db.Boolean, default=False)
status = db.Column("export_status", db.Unicode, default=Status.DEFAULT)
content_hash = db.Column(db.Unicode(65), index=True, nullable=True)
file_size = db.Column(db.BigInteger, nullable=True) # In bytes
file_name = db.Column(db.Unicode, nullable=True)
mime_type = db.Column(db.Unicode)
meta = db.Column(JSONB, default={})
def to_dict(self):
data = self.to_dict_dates()
data.update({
"id": stringify(self.id),
"label": self.label,
"operation": self.operation,
"creator_id": stringify(self.creator_id),
"collection_id": self.collection_id,
"expires_at": self.expires_at,
"deleted": self.deleted,
"status": Status.LABEL.get(self.status),
"content_hash": self.content_hash,
"file_size": self.file_size,
"file_name": self.file_name,
"mime_type": self.mime_type,
"meta": self.meta,
})
return data
@classmethod
def create(cls,
operation,
role_id,
label,
collection=None,
mime_type=None,
meta=None):
export = cls()
export.creator_id = role_id
export.operation = operation
export.label = label
if collection is not None:
export.collection_id = collection.id
export.mime_type = mime_type
export.expires_at = datetime.utcnow() + cls.DEFAULT_EXPIRATION
export.meta = meta or {}
db.session.add(export)
return export
@property
def namespace(self):
return make_key("role", self.creator_id)
def set_status(self, status):
self.status = status
db.session.add(self)
def should_delete_publication(self):
"""Check whether the published export should be deleted from the archive
Since we store exports by contenthash, there may be other non-expired exports
that point to the same file in the archive"""
q = (Export.all().filter(
Export.content_hash == self.content_hash).filter(
Export.deleted.isnot(True)).filter(Export.id != self.id))
return q.first() is None
@classmethod
def get_expired(cls, deleted=False):
now = datetime.utcnow()
q = cls.all()
q = q.filter(cls.expires_at <= now)
if not deleted:
q = q.filter(cls.deleted == deleted)
return q
@classmethod
def get_pending(cls):
q = cls.all()
q = q.filter(cls.status == Status.PENDING)
q = q.filter(cls.deleted == False) # noqa
return q
@classmethod
def by_id(cls, id, role_id=None, deleted=False):
q = cls.all().filter_by(id=id)
if role_id is not None:
q = q.filter(cls.creator_id == role_id)
if not deleted:
q = q.filter(cls.deleted == False) # noqa
return q.first()
@classmethod
def by_role_id(cls, role_id, deleted=False):
q = cls.all()
q = q.filter(cls.creator_id == role_id)
if not deleted:
q = q.filter(cls.deleted == False) # noqa
q = q.order_by(cls.created_at.desc())
return q
@classmethod
def by_content_hash(cls, content_hash, deleted=False):
q = cls.all()
q = q.filter(cls.content_hash == content_hash)
if not deleted:
q = q.filter(cls.deleted == False) # noqa
return q
def __repr__(self):
return "<Export(%r, %r, %r)>" % (self.id, self.creator_id, self.label)
class Document(db.Model, DatedModel):
SCHEMA = 'Document'
SCHEMA_FOLDER = 'Folder'
SCHEMA_TABLE = 'Table'
id = db.Column(db.BigInteger, primary_key=True)
content_hash = db.Column(db.Unicode(65), nullable=True, index=True)
foreign_id = db.Column(db.Unicode, unique=False, nullable=True, index=True)
schema = db.Column(db.String(255), nullable=False)
meta = db.Column(JSONB, default={})
uploader_id = db.Column(db.Integer,
db.ForeignKey('role.id'),
nullable=True) # noqa
parent_id = db.Column(db.BigInteger,
db.ForeignKey('document.id'),
nullable=True,
index=True) # noqa
collection_id = db.Column(db.Integer,
db.ForeignKey('collection.id'),
nullable=False,
index=True) # noqa
collection = db.relationship(Collection,
backref=db.backref('documents',
lazy='dynamic')) # noqa
def __init__(self, **kw):
self.meta = {}
super(Document, self).__init__(**kw)
@property
def model(self):
return model.get(self.schema)
@property
def ancestors(self):
if self.parent_id is None:
return []
key = cache.key('ancestors', self.id)
ancestors = cache.get_list(key)
if len(ancestors):
return ancestors
parent_key = cache.key('ancestors', self.parent_id)
ancestors = cache.get_list(parent_key)
if not len(ancestors):
ancestors = []
parent = Document.by_id(self.parent_id)
if parent is not None:
ancestors = parent.ancestors
ancestors.append(self.parent_id)
if self.model.is_a(model.get(self.SCHEMA_FOLDER)):
cache.set_list(key, ancestors, expire=cache.EXPIRE)
return ancestors
def update(self, data):
props = ('title', 'summary', 'author', 'crawler', 'source_url',
'file_name', 'mime_type', 'headers', 'date', 'authored_at',
'modified_at', 'published_at', 'retrieved_at', 'languages',
'countries', 'keywords')
for prop in props:
self.meta[prop] = data.get(prop, self.meta.get(prop))
flag_modified(self, 'meta')
def delete(self, deleted_at=None):
db.session.delete(self)
@classmethod
def delete_by_collection(cls, collection_id):
pq = db.session.query(cls)
pq = pq.filter(cls.collection_id == collection_id)
pq.delete(synchronize_session=False)
@classmethod
def save(cls,
collection,
parent=None,
foreign_id=None,
content_hash=None,
meta=None,
uploader_id=None):
"""Try and find a document by various criteria."""
q = cls.all()
q = q.filter(Document.collection_id == collection.id)
if parent is not None:
q = q.filter(Document.parent_id == parent.id)
if foreign_id is not None:
q = q.filter(Document.foreign_id == foreign_id)
elif content_hash is not None:
q = q.filter(Document.content_hash == content_hash)
else:
raise ValueError("No unique criterion for document.")
document = q.first()
if document is None:
document = cls()
document.schema = cls.SCHEMA
document.collection_id = collection.id
document.uploader_id = uploader_id
if parent is not None:
document.parent_id = parent.id
if foreign_id is not None:
document.foreign_id = foreign_id
document.content_hash = content_hash
if content_hash is None:
document.schema = cls.SCHEMA_FOLDER
if meta is not None:
document.update(meta)
db.session.add(document)
return document
@classmethod
def by_id(cls, id, collection_id=None):
try:
id = int(id)
except Exception:
return
q = cls.all()
q = q.filter(cls.id == id)
if collection_id is not None:
q = q.filter(cls.collection_id == collection_id)
return q.first()
@classmethod
def by_collection(cls, collection_id=None):
q = cls.all()
q = q.filter(cls.collection_id == collection_id)
return q
@classmethod
def cleanup_deleted(cls):
q = db.session.query(Collection.id)
q = q.filter(Collection.deleted_at != None) # noqa
collection_ids = [c for (c, ) in q.all()]
pq = db.session.query(cls)
pq = pq.filter(cls.collection_id.in_(collection_ids))
pq.delete(synchronize_session=False)
def to_proxy(self):
proxy = model.get_proxy({
'id': str(self.id),
'schema': self.model,
'properties': {}
})
meta = dict(self.meta)
headers = meta.pop('headers', {}) or {}
headers = {slugify(k, sep='_'): v for k, v in headers.items()}
proxy.set('contentHash', self.content_hash)
proxy.set('parent', self.parent_id)
proxy.set('ancestors', self.ancestors)
proxy.set('crawler', meta.get('crawler'))
proxy.set('sourceUrl', meta.get('source_url'))
proxy.set('title', meta.get('title'))
proxy.set('fileName', meta.get('file_name'))
if not proxy.has('fileName'):
disposition = headers.get('content_disposition')
if disposition is not None:
_, attrs = cgi.parse_header(disposition)
proxy.set('fileName', attrs.get('filename'))
proxy.set('mimeType', meta.get('mime_type'))
if not proxy.has('mimeType'):
proxy.set('mimeType', headers.get('content_type'))
proxy.set('language', meta.get('languages'))
proxy.set('country', meta.get('countries'))
proxy.set('keywords', meta.get('keywords'))
proxy.set('headers', registry.json.pack(headers), quiet=True)
proxy.set('authoredAt', meta.get('authored_at'))
proxy.set('modifiedAt', meta.get('modified_at'))
proxy.set('publishedAt', meta.get('published_at'))
proxy.set('retrievedAt', meta.get('retrieved_at'))
proxy.set('indexUpdatedAt', self.created_at)
proxy.set('sourceUrl', meta.get('source_url'))
return proxy
def __repr__(self):
return '<Document(%r,%r)>' % (self.id, self.schema)
class Export(db.Model, IdModel, DatedModel):
"""A data export run in the background. The data is stored in a cloud
storage bucket and the user is given a link to download the data. The link
expires after a fixed duration and the exported data is deleted. """
MAX_FILE_SIZE = 10 * 1024 * 1024 * 1024 # 10 GB
STATUS_PENDING = "pending"
STATUS_SUCCESSFUL = "successful"
STATUS_FAILED = "failed"
EXPORT_STATUS = {
STATUS_PENDING: lazy_gettext("pending"),
STATUS_SUCCESSFUL: lazy_gettext("successful"),
STATUS_FAILED: lazy_gettext("failed"),
}
DEFAULT_STATUS = STATUS_PENDING
DEFAULT_EXPIRATION = timedelta(days=30) # After 30 days
label = db.Column(db.Unicode)
operation = db.Column(db.Unicode)
creator_id = db.Column(db.Integer, db.ForeignKey("role.id"))
creator = db.relationship(Role,
backref=db.backref("exports", lazy="dynamic"))
collection_id = db.Column(db.Integer,
db.ForeignKey("collection.id"),
index=True,
nullable=True)
collection = db.relationship(Collection,
backref=db.backref("exports", lazy="dynamic"))
expires_at = db.Column(db.DateTime, default=None, nullable=True)
deleted = db.Column(db.Boolean, default=False)
export_status = db.Column(db.Unicode, default=DEFAULT_STATUS)
content_hash = db.Column(db.Unicode(65), index=True, nullable=True)
file_size = db.Column(db.BigInteger, nullable=True) # In bytes
file_name = db.Column(db.Unicode, nullable=True)
mime_type = db.Column(db.Unicode)
meta = db.Column(JSONB, default={})
def to_dict(self):
data = self.to_dict_dates()
if self.export_status in self.EXPORT_STATUS:
data["export_status"] = self.EXPORT_STATUS.get(self.export_status)
data.update({
"id": stringify(self.id),
"label": self.label,
"operation": self.operation,
"creator_id": stringify(self.creator_id),
"collection_id": self.collection_id,
"expires_at": self.expires_at,
"deleted": self.deleted,
"export_status": self.export_status,
"content_hash": self.content_hash,
"file_size": self.file_size,
"file_name": self.file_name,
"meta": self.meta,
})
return data
@classmethod
def create(
cls,
operation,
role_id,
label,
file_path=None,
expires_after=None,
collection=None,
mime_type=None,
):
export = cls()
export.creator_id = role_id
export.operation = operation
export.label = label
if file_path is not None:
export.set_filepath(file_path)
if collection is not None:
export.collection_id = collection.id
export.mime_type = mime_type
export.expires_at = datetime.utcnow() + (expires_after
or cls.DEFAULT_EXPIRATION)
db.session.add(export)
return export
@property
def namespace(self):
return make_key("role", self.creator_id)
def publish(self):
if not self._file_path:
raise RuntimeError("file path not present for export: %r", self)
# Use contenthash as filename to make to ensure uniqueness
path = Path(self._file_path.parent, self.content_hash)
self._file_path.rename(path)
try:
archive.publish(self.namespace, path, self.mime_type)
self.set_status(status=Export.STATUS_SUCCESSFUL)
except Exception as ex:
self.set_status(status=Export.STATUS_FAILED)
raise ex
def set_filepath(self, file_path):
file_path = ensure_path(file_path)
file_name = safe_filename(file_path)
file_size = file_path.stat().st_size
self.file_name = file_name
self.file_size = file_size
self._file_path = file_path
self.content_hash = checksum(file_path)
def set_status(self, status):
if status in self.EXPORT_STATUS:
self.export_status = status
db.session.add(self)
def delete_publication(self):
if self._should_delete_publication():
archive.delete_publication(self.namespace, self.content_hash)
self.deleted = True
db.session.add(self)
def _should_delete_publication(self):
"""Check whether the published export should be deleted from the archive
Since we store exports by contenthash, there may be other non-expired exports
that point to the same file in the archive"""
q = (Export.all().filter(
Export.content_hash == self.content_hash).filter(
Export.deleted.isnot(True)).filter(Export.id != self.id))
return q.first() is None
@classmethod
def get_expired(cls, deleted=False):
now = datetime.utcnow()
q = cls.all().filter(
cls.expires_at.isnot(None)).filter(cls.expires_at <= now)
if deleted is not None:
q = q.filter(cls.deleted == deleted)
return q
@classmethod
def by_id(cls, id, role_id=None, deleted=False):
q = cls.all().filter_by(id=id)
if role_id is not None:
q = q.filter(cls.creator_id == role_id)
if not deleted:
q = q.filter(cls.deleted == False)
return q.first()
@classmethod
def by_role_id(cls, role_id, deleted=False):
q = cls.all()
q = q.filter(cls.creator_id == role_id)
if not deleted:
q = q.filter(cls.deleted == False)
q = q.order_by(cls.created_at.desc())
return q
def __repr__(self):
return "<Export(%r, %r)>" % (self.id, self.creator_id)
class Collection(db.Model, IdModel, SoftDeleteModel):
"""A set of documents and entities against which access control is
enforced."""
# Category schema for collections.
# TODO: add extra weight info.
# TODO: should this be configurable?
CATEGORIES = {
'news': lazy_gettext('News archives'),
'leak': lazy_gettext('Leaks'),
'land': lazy_gettext('Land registry'),
'gazette': lazy_gettext('Gazettes'),
'court': lazy_gettext('Court archives'),
'company': lazy_gettext('Company registries'),
'watchlist': lazy_gettext('Watchlists'),
'investigation': lazy_gettext('Personal collections'),
'sanctions': lazy_gettext('Sanctions lists'),
'scrape': lazy_gettext('Scrapes'),
'procurement': lazy_gettext('Procurement'),
'grey': lazy_gettext('Grey literature'),
'license': lazy_gettext('Licenses and concessions'),
'regulatory': lazy_gettext('Regulatory filings'),
'other': lazy_gettext('Other material')
}
DEFAULT = 'other'
label = db.Column(db.Unicode)
summary = db.Column(db.Unicode, nullable=True)
category = db.Column(db.Unicode, nullable=True)
countries = db.Column(ARRAY(db.Unicode()), default=[])
languages = db.Column(ARRAY(db.Unicode()), default=[])
foreign_id = db.Column(db.Unicode, unique=True, nullable=False)
publisher = db.Column(db.Unicode, nullable=True)
publisher_url = db.Column(db.Unicode, nullable=True)
info_url = db.Column(db.Unicode, nullable=True)
data_url = db.Column(db.Unicode, nullable=True)
# A casefile is a type of collection which is used to manage the state
# of an investigation. Unlike normal collections, cases do not serve
# as source material, but as a mechanism of analysis.
casefile = db.Column(db.Boolean, default=False)
creator_id = db.Column(db.Integer, db.ForeignKey('role.id'), nullable=True)
creator = db.relationship(Role)
def update(self, data, creator=None):
self.label = data.get('label', self.label)
self.summary = data.get('summary', self.summary)
self.summary = data.get('summary', self.summary)
self.publisher = data.get('publisher', self.publisher)
self.publisher_url = data.get('publisher_url', self.publisher_url)
self.info_url = data.get('info_url', self.info_url)
self.data_url = data.get('data_url', self.data_url)
self.category = data.get('category') or self.DEFAULT
self.casefile = as_bool(data.get('casefile'), default=False)
self.countries = data.get('countries', [])
self.languages = data.get('languages', [])
if creator is None:
creator = Role.by_id(data.get('creator_id'))
self.creator = creator
self.updated_at = datetime.utcnow()
db.session.add(self)
db.session.flush()
if creator is not None:
Permission.grant(self, creator, True, True)
@property
def roles(self):
if not hasattr(self, '_roles'):
q = db.session.query(Permission.role_id)
q = q.filter(Permission.deleted_at == None) # noqa
q = q.filter(Permission.collection_id == self.id) # noqa
q = q.filter(Permission.read == True) # noqa
self._roles = [e.role_id for e in q.all()]
return self._roles
@property
def kind(self):
return 'casefile' if self.casefile else 'source'
@classmethod
def by_foreign_id(cls, foreign_id, deleted=False):
if foreign_id is None:
return
q = cls.all(deleted=deleted)
return q.filter(cls.foreign_id == foreign_id).first()
@classmethod
def all_by_ids(cls, ids, deleted=False, authz=None):
q = super(Collection, cls).all_by_ids(ids, deleted=deleted)
if authz is not None and not authz.is_admin:
q = q.join(Permission, cls.id == Permission.collection_id)
q = q.filter(Permission.deleted_at == None) # noqa
q = q.filter(Permission.read == True) # noqa
q = q.filter(Permission.role_id.in_(authz.roles))
return q
@classmethod
def create(cls, data, role=None):
foreign_id = data.get('foreign_id') or make_textid()
collection = cls.by_foreign_id(foreign_id, deleted=True)
if collection is None:
collection = cls()
collection.foreign_id = foreign_id
collection.update(data, creator=role)
collection.deleted_at = None
return collection
def __repr__(self):
return '<Collection(%r, %r, %r)>' % \
(self.id, self.foreign_id, self.label)
class Collection(db.Model, IdModel, SoftDeleteModel):
"""A set of documents and entities against which access control is
enforced."""
label = db.Column(db.Unicode)
summary = db.Column(db.Unicode, nullable=True)
category = db.Column(db.Unicode, nullable=True)
countries = db.Column(ARRAY(db.Unicode()), default=[])
languages = db.Column(ARRAY(db.Unicode()), default=[])
foreign_id = db.Column(db.Unicode, unique=True, nullable=False)
# Managed collections are generated by API crawlers and thus UI users
# shouldn't be allowed to add entities or documents to them. They also
# don't use advanced entity extraction features for performance reasons.
managed = db.Column(db.Boolean, default=False)
creator_id = db.Column(db.Integer, db.ForeignKey('role.id'), nullable=True)
creator = db.relationship(Role)
def update(self, data):
self.label = data.get('label', self.label)
self.summary = data.get('summary', self.summary)
self.category = data.get('category', self.category)
self.managed = data.get('managed', False)
self.countries = data.get('countries', [])
creator = data.get('creator') or {}
self.update_creator(creator.get('id'))
self.touch()
def update_creator(self, role):
"""Set the creator (and admin) of a collection."""
if not isinstance(role, Role):
role = Role.by_id(role)
if role is None or role.type != Role.USER:
return
self.creator = role
db.session.add(self)
db.session.flush()
Permission.grant(self, role, True, True)
def touch(self):
self.updated_at = datetime.utcnow()
db.session.add(self)
def delete_matches(self):
pq = db.session.query(Match)
pq = pq.filter(
or_(Match.collection_id == self.id,
Match.match_collection_id == self.id))
pq.delete(synchronize_session=False)
def delete_permissions(self, deleted_at):
pq = db.session.query(Permission)
pq = pq.filter(Permission.collection_id == self.id)
pq.update({Permission.deleted_at: deleted_at},
synchronize_session=False)
def delete(self, deleted_at=None):
self.delete_matches()
self.delete_permissions(deleted_at=deleted_at)
super(Collection, self).delete(deleted_at=deleted_at)
@property
def roles(self):
if not hasattr(self, '_roles'):
q = db.session.query(Permission.role_id)
q = q.filter(Permission.collection_id == self.id) # noqa
q = q.filter(Permission.read == True) # noqa
self._roles = [e.role_id for e in q.all()]
return self._roles
@classmethod
def by_foreign_id(cls, foreign_id, deleted=False):
if foreign_id is None:
return
q = cls.all(deleted=deleted)
return q.filter(cls.foreign_id == foreign_id).first()
@classmethod
def all_by_ids(cls, ids, deleted=False, authz=None):
q = super(Collection, cls).all_by_ids(ids, deleted=deleted)
if authz is not None and not authz.is_admin:
q = q.join(Permission, cls.id == Permission.collection_id)
q = q.filter(Permission.deleted_at == None) # noqa
q = q.filter(Permission.read == True) # noqa
q = q.filter(Permission.role_id.in_(authz.roles))
return q
@classmethod
def create(cls, data, role=None):
foreign_id = data.get('foreign_id') or make_textid()
collection = cls.by_foreign_id(foreign_id, deleted=True)
if collection is None:
collection = cls()
collection.foreign_id = foreign_id
collection.update(data)
collection.update_creator(role)
collection.deleted_at = None
return collection
def __repr__(self):
return '<Collection(%r, %r, %r)>' % \
(self.id, self.foreign_id, self.label)
class Collection(db.Model, IdModel, SoftDeleteModel):
"""A set of documents and entities against which access control is
enforced."""
# Category schema for collections.
# TODO: add extra weight info.
# TODO: should this be configurable?
CATEGORIES = {
'news': 'News archives',
'leak': 'Leaks',
'land': 'Land registry',
'gazette': 'Gazettes',
'court': 'Court archives',
'company': 'Company registries',
'watchlist': 'Watchlists',
'investigation': 'Personal collections',
'sanctions': 'Sanctions lists',
'scrape': 'Scrapes',
'procurement': 'Procurement',
'grey': 'Grey literature',
'license': 'Licenses and concessions',
'regulatory': 'Regulatory filings',
'other': 'Other material'
}
label = db.Column(db.Unicode)
summary = db.Column(db.Unicode, nullable=True)
category = db.Column(db.Unicode, nullable=True)
countries = db.Column(ARRAY(db.Unicode()), default=[])
languages = db.Column(ARRAY(db.Unicode()), default=[])
foreign_id = db.Column(db.Unicode, unique=True, nullable=False)
# Managed collections are generated by API crawlers and thus UI users
# shouldn't be allowed to add entities or documents to them. They also
# don't use advanced entity extraction features for performance reasons.
managed = db.Column(db.Boolean, default=False)
creator_id = db.Column(db.Integer, db.ForeignKey('role.id'), nullable=True)
creator = db.relationship(Role)
def update(self, data, creator=None):
self.label = data.get('label', self.label)
self.summary = data.get('summary', self.summary)
self.category = data.get('category', self.category)
self.managed = data.get('managed', False)
self.countries = data.get('countries', [])
if creator is None:
creator = Role.by_id(data.get('creator_id'))
self.creator = creator
self.updated_at = datetime.utcnow()
db.session.add(self)
db.session.flush()
if creator is not None:
Permission.grant(self, creator, True, True)
@property
def roles(self):
if not hasattr(self, '_roles'):
q = db.session.query(Permission.role_id)
q = q.filter(Permission.deleted_at == None) # noqa
q = q.filter(Permission.collection_id == self.id) # noqa
q = q.filter(Permission.read == True) # noqa
self._roles = [e.role_id for e in q.all()]
return self._roles
@classmethod
def by_foreign_id(cls, foreign_id, deleted=False):
if foreign_id is None:
return
q = cls.all(deleted=deleted)
return q.filter(cls.foreign_id == foreign_id).first()
@classmethod
def all_by_ids(cls, ids, deleted=False, authz=None):
q = super(Collection, cls).all_by_ids(ids, deleted=deleted)
if authz is not None and not authz.is_admin:
q = q.join(Permission, cls.id == Permission.collection_id)
q = q.filter(Permission.deleted_at == None) # noqa
q = q.filter(Permission.read == True) # noqa
q = q.filter(Permission.role_id.in_(authz.roles))
return q
@classmethod
def create(cls, data, role=None):
foreign_id = data.get('foreign_id') or make_textid()
collection = cls.by_foreign_id(foreign_id, deleted=True)
if collection is None:
collection = cls()
collection.foreign_id = foreign_id
collection.update(data, creator=role)
collection.deleted_at = None
return collection
def __repr__(self):
return '<Collection(%r, %r, %r)>' % \
(self.id, self.foreign_id, self.label)
class Document(db.Model, DatedModel, Metadata):
MAX_TAGS = 10000
SCHEMA = 'Document'
SCHEMA_FOLDER = 'Folder'
SCHEMA_PACKAGE = 'Package'
SCHEMA_WORKBOOK = 'Workbook'
SCHEMA_TEXT = 'PlainText'
SCHEMA_HTML = 'HyperText'
SCHEMA_PDF = 'Pages'
SCHEMA_IMAGE = 'Image'
SCHEMA_AUDIO = 'Audio'
SCHEMA_VIDEO = 'Video'
SCHEMA_TABLE = 'Table'
SCHEMA_EMAIL = 'Email'
STATUS_PENDING = 'pending'
STATUS_SUCCESS = 'success'
STATUS_FAIL = 'fail'
id = db.Column(db.BigInteger, primary_key=True)
content_hash = db.Column(db.Unicode(65), nullable=True, index=True)
foreign_id = db.Column(db.Unicode, unique=False, nullable=True, index=True)
schema = db.Column(db.String(255), nullable=False)
status = db.Column(db.Unicode(10), nullable=True)
meta = db.Column(JSONB, default={})
error_message = db.Column(db.Unicode(), nullable=True)
body_text = db.Column(db.Unicode(), nullable=True)
body_raw = db.Column(db.Unicode(), nullable=True)
uploader_id = db.Column(db.Integer,
db.ForeignKey('role.id'),
nullable=True) # noqa
parent_id = db.Column(db.BigInteger,
db.ForeignKey('document.id'),
nullable=True,
index=True) # noqa
children = db.relationship('Document',
lazy='dynamic',
backref=db.backref('parent',
uselist=False,
remote_side=[id])) # noqa
collection_id = db.Column(db.Integer,
db.ForeignKey('collection.id'),
nullable=False,
index=True) # noqa
collection = db.relationship(Collection,
backref=db.backref('documents',
lazy='dynamic')) # noqa
def __init__(self, **kw):
self.meta = {}
super(Document, self).__init__(**kw)
@property
def model(self):
return model.get(self.schema)
@property
def name(self):
if self.title is not None:
return self.title
if self.file_name is not None:
return self.file_name
if self.source_url is not None:
return self.source_url
@property
def supports_records(self):
# Slightly unintuitive naming: this just checks the document type,
# not if there actually are any records.
return self.schema in [self.SCHEMA_PDF, self.SCHEMA_TABLE]
@property
def supports_pages(self):
return self.schema == self.SCHEMA_PDF
@property
def supports_nlp(self):
structural = [
Document.SCHEMA,
Document.SCHEMA_PACKAGE,
Document.SCHEMA_FOLDER,
Document.SCHEMA_WORKBOOK,
Document.SCHEMA_VIDEO,
Document.SCHEMA_AUDIO,
]
return self.schema not in structural
@property
def ancestors(self):
if self.parent_id is None:
return []
key = cache.key('ancestors', self.id)
ancestors = cache.get_list(key)
if ancestors is not None:
return ancestors
ancestors = self.parent.ancestors
ancestors.append(self.parent_id)
cache.set_list(key, ancestors)
return ancestors
def update(self, data):
props = ('title', 'summary', 'author', 'crawler', 'source_url',
'file_name', 'mime_type', 'headers', 'date', 'authored_at',
'modified_at', 'published_at', 'retrieved_at', 'languages',
'countries', 'keywords')
for prop in props:
value = data.get(prop, self.meta.get(prop))
setattr(self, prop, value)
db.session.add(self)
def update_meta(self):
flag_modified(self, 'meta')
def delete_records(self):
pq = db.session.query(DocumentRecord)
pq = pq.filter(DocumentRecord.document_id == self.id)
pq.delete()
db.session.flush()
def delete_tags(self):
pq = db.session.query(DocumentTag)
pq = pq.filter(DocumentTag.document_id == self.id)
pq.delete()
db.session.flush()
def delete(self, deleted_at=None):
self.delete_records()
self.delete_tags()
db.session.delete(self)
@classmethod
def delete_by_collection(cls, collection_id, deleted_at=None):
documents = db.session.query(cls.id)
documents = documents.filter(cls.collection_id == collection_id)
documents = documents.subquery()
pq = db.session.query(DocumentRecord)
pq = pq.filter(DocumentRecord.document_id.in_(documents))
pq.delete(synchronize_session=False)
pq = db.session.query(DocumentTag)
pq = pq.filter(DocumentTag.document_id.in_(documents))
pq.delete(synchronize_session=False)
pq = db.session.query(cls)
pq = pq.filter(cls.collection_id == collection_id)
pq.delete(synchronize_session=False)
def raw_texts(self):
yield self.title
yield self.file_name
yield self.source_url
yield self.summary
yield self.author
if self.status != self.STATUS_SUCCESS:
return
yield self.body_text
if self.supports_records:
# iterate over all the associated records.
pq = db.session.query(DocumentRecord)
pq = pq.filter(DocumentRecord.document_id == self.id)
pq = pq.order_by(DocumentRecord.index.asc())
for record in pq.yield_per(10000):
yield from record.raw_texts()
@property
def texts(self):
yield from filter_texts(self.raw_texts())
@classmethod
def by_keys(cls,
parent_id=None,
collection_id=None,
foreign_id=None,
content_hash=None):
"""Try and find a document by various criteria."""
q = cls.all()
q = q.filter(Document.collection_id == collection_id)
if parent_id is not None:
q = q.filter(Document.parent_id == parent_id)
if foreign_id is not None:
q = q.filter(Document.foreign_id == foreign_id)
elif content_hash is not None:
q = q.filter(Document.content_hash == content_hash)
else:
raise ValueError("No unique criterion for document.")
document = q.first()
if document is None:
document = cls()
document.schema = cls.SCHEMA
document.collection_id = collection_id
if parent_id is not None:
document.parent_id = parent_id
if foreign_id is not None:
document.foreign_id = foreign_id
if content_hash is not None:
document.content_hash = content_hash
db.session.add(document)
return document
@classmethod
def by_id(cls, id, collection_id=None):
if id is None:
return
q = cls.all()
q = q.filter(cls.id == id)
if collection_id is not None:
q = q.filter(cls.collection_id == collection_id)
return q.first()
@classmethod
def by_collection(cls, collection_id=None):
q = cls.all()
q = q.filter(cls.collection_id == collection_id)
return q
@classmethod
def find_ids(cls, collection_id=None, failed_only=False):
q = cls.all_ids()
if collection_id is not None:
q = q.filter(cls.collection_id == collection_id)
if failed_only:
q = q.filter(cls.status != cls.STATUS_SUCCESS)
q = q.order_by(cls.id.asc())
return q
def to_proxy(self):
meta = dict(self.meta)
headers = meta.pop('headers', {})
headers = {slugify(k, sep='_'): v for k, v in headers.items()}
proxy = model.get_proxy({
'id': str(self.id),
'schema': self.model,
'properties': meta
})
proxy.set('contentHash', self.content_hash)
proxy.set('parent', self.parent_id)
proxy.set('ancestors', self.ancestors)
proxy.set('fileSize', meta.get('file_size'))
proxy.set('fileName', meta.get('file_name'))
if not proxy.has('fileName'):
disposition = headers.get('content_disposition')
if disposition is not None:
_, attrs = cgi.parse_header(disposition)
proxy.set('fileName', attrs.get('filename'))
proxy.set('mimeType', meta.get('mime_type'))
if not proxy.has('mimeType'):
proxy.set('mimeType', headers.get('content_type'))
proxy.set('language', meta.get('languages'))
proxy.set('country', meta.get('countries'))
proxy.set('authoredAt', meta.get('authored_at'))
proxy.set('modifiedAt', meta.get('modified_at'))
proxy.set('publishedAt', meta.get('published_at'))
proxy.set('retrievedAt', meta.get('retrieved_at'))
proxy.set('sourceUrl', meta.get('source_url'))
proxy.set('messageId', meta.get('message_id'), quiet=True)
proxy.set('inReplyTo', meta.get('in_reply_to'), quiet=True)
proxy.set('bodyText', self.body_text, quiet=True)
proxy.set('bodyHtml', self.body_raw, quiet=True)
columns = meta.get('columns')
proxy.set('columns', registry.json.pack(columns), quiet=True)
proxy.set('headers', registry.json.pack(headers), quiet=True)
pdf = 'application/pdf'
if meta.get('extension') == 'pdf' or proxy.first('mimeType') == pdf:
proxy.set('pdfHash', self.content_hash, quiet=True)
proxy.add('pdfHash', meta.get('pdf_version'), quiet=True)
q = db.session.query(DocumentTag)
q = q.filter(DocumentTag.document_id == self.id)
q = q.filter(DocumentTag.type.in_(DocumentTag.MAPPING.keys()))
q = q.order_by(DocumentTag.weight.desc())
q = q.limit(Document.MAX_TAGS)
for tag in q.all():
prop = DocumentTag.MAPPING.get(tag.type)
if prop is not None:
proxy.add(prop, tag.text)
return proxy
def to_dict(self):
proxy = self.to_proxy()
data = proxy.to_full_dict()
data.update(self.to_dict_dates())
data.update({
'name': self.name,
'status': self.status,
'foreign_id': self.foreign_id,
'document_id': self.id,
'collection_id': self.collection_id,
'error_message': self.error_message,
'uploader_id': self.uploader_id,
'bulk': False,
})
return data
def __repr__(self):
return '<Document(%r,%r,%r)>' % (self.id, self.schema, self.title)
class Document(db.Model, DatedModel):
_schema = 'document.json#'
SCHEMA = 'Document'
TYPE_TEXT = 'text'
TYPE_TABULAR = 'tabular'
TYPE_OTHER = 'other'
STATUS_PENDING = 'pending'
STATUS_SUCCESS = 'success'
STATUS_FAIL = 'fail'
id = db.Column(db.BigInteger, primary_key=True)
content_hash = db.Column(db.Unicode(65), nullable=False, index=True)
foreign_id = db.Column(db.Unicode, unique=False, nullable=True)
type = db.Column(db.Unicode(10), nullable=False, index=True)
status = db.Column(db.Unicode(10), nullable=True, index=True)
_meta = db.Column('meta', JSONB)
crawler = db.Column(db.Unicode(), index=True)
crawler_run = db.Column(db.Unicode())
error_type = db.Column(db.Unicode(), nullable=True)
error_message = db.Column(db.Unicode(), nullable=True)
error_details = db.Column(db.Unicode(), nullable=True)
collection_id = db.Column(db.Integer,
db.ForeignKey('collection.id'),
nullable=False,
index=True) # noqa
collection = db.relationship(Collection,
backref=db.backref('documents',
lazy='dynamic')) # noqa
@property
def title(self):
return self.meta.title
@hybrid_property
def meta(self):
self._meta = self._meta or {}
self._meta['content_hash'] = self.content_hash
self._meta['foreign_id'] = self.foreign_id
self._meta['crawler'] = self.crawler
self._meta['crawler_run'] = self.crawler_run
return Metadata.from_data(self._meta or {})
@meta.setter
def meta(self, meta):
if isinstance(meta, Metadata):
self.content_hash = meta.content_hash
self.foreign_id = meta.foreign_id
self.crawler = meta.crawler
self.crawler_run = meta.crawler_run
meta = meta.to_attr_dict()
self._meta = meta
flag_modified(self, '_meta')
def update(self, data):
validate(data, self._schema)
meta = self.meta
meta.update(data, safe=True)
self.meta = meta
db.session.add(self)
def delete_pages(self):
pq = db.session.query(DocumentPage)
pq = pq.filter(DocumentPage.document_id == self.id)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete_records(self):
pq = db.session.query(DocumentRecord)
pq = pq.filter(DocumentRecord.document_id == self.id)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete_references(self, origin=None):
pq = db.session.query(Reference)
pq = pq.filter(Reference.document_id == self.id)
if origin is not None:
pq = pq.filter(Reference.origin == origin)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete(self, deleted_at=None):
self.delete_references()
self.delete_records()
self.delete_pages()
db.session.delete(self)
def insert_records(self, sheet, iterable, chunk_size=1000):
chunk = []
for i, data in enumerate(iterable):
chunk.append({
'document_id': self.id,
'row_id': i,
'sheet': sheet,
'data': data
})
if len(chunk) >= chunk_size:
db.session.bulk_insert_mappings(DocumentRecord, chunk)
chunk = []
if len(chunk):
db.session.bulk_insert_mappings(DocumentRecord, chunk)
def text_parts(self):
if self.type == self.TYPE_TEXT:
for page in self.pages:
for text in page.text_parts():
yield text
elif self.type == self.TYPE_TABULAR:
for record in self.records:
for text in record.text_parts():
yield text
@classmethod
def crawler_last_run(cls, crawler_id):
q = db.session.query(func.max(cls.updated_at))
q = q.filter(cls.crawler == crawler_id)
return q.scalar()
@classmethod
def is_crawler_active(cls, crawler_id):
# TODO: add a function to see if a particular crawl is still running
# this should be defined as having "pending" documents.
last_run_time = cls.crawler_last_run(crawler_id)
if last_run_time is None:
return False
return last_run_time > (datetime.utcnow() - timedelta(hours=1))
@classmethod
def crawler_stats(cls, crawler_id):
# Check if the crawler was active very recently, if so, don't
# allow the user to execute a new run right now.
stats = {
'updated': cls.crawler_last_run(crawler_id),
'running': cls.is_crawler_active(crawler_id)
}
q = db.session.query(cls.status, func.count(cls.id))
q = q.filter(cls.crawler == crawler_id)
q = q.group_by(cls.status)
for (status, count) in q.all():
stats[status] = count
return stats
def _add_to_dict(self, data):
try:
from flask import request
source_id = self.collection_id
data['public'] = request.authz.collection_public(source_id)
except:
data['public'] = None
data.update({
'id': self.id,
'type': self.type,
'status': self.status,
'error_type': self.error_type,
'error_message': self.error_message,
'error_details': self.error_details,
'collection_id': self.collection_id,
'created_at': self.created_at,
'updated_at': self.updated_at
})
return data
def to_dict(self):
data = self.meta.to_dict()
return self._add_to_dict(data)
def to_index_dict(self):
data = self.meta.to_index_dict()
data['text'] = index_form(self.text_parts())
data['schema'] = self.SCHEMA
data['schemata'] = [self.SCHEMA]
data['name_sort'] = ascii_text(data.get('title'))
data['title_latin'] = ascii_text(data.get('title'))
data['summary_latin'] = ascii_text(data.get('summary'))
return self._add_to_dict(data)
def __repr__(self):
return '<Document(%r,%r,%r)>' % (self.id, self.type, self.title)
class Role(db.Model, IdModel, SoftDeleteModel):
"""A user, group or other access control subject."""
__tablename__ = 'role'
USER = '******'
GROUP = 'group'
SYSTEM = 'system'
TYPES = [USER, GROUP, SYSTEM]
SYSTEM_GUEST = 'guest'
SYSTEM_USER = '******'
#: Generates URL-safe signatures for invitations.
SIGNATURE = URLSafeTimedSerializer(settings.SECRET_KEY)
#: Signature maximum age, defaults to 1 day
SIGNATURE_MAX_AGE = 60 * 60 * 24
foreign_id = db.Column(db.Unicode(2048), nullable=False, unique=True)
name = db.Column(db.Unicode, nullable=False)
email = db.Column(db.Unicode, nullable=True)
type = db.Column(db.Enum(*TYPES, name='role_type'), nullable=False)
api_key = db.Column(db.Unicode, nullable=True)
is_admin = db.Column(db.Boolean, nullable=False, default=False)
is_muted = db.Column(db.Boolean, nullable=False, default=False)
is_tester = db.Column(db.Boolean, nullable=False, default=False)
is_blocked = db.Column(db.Boolean, nullable=False, default=False)
password_digest = db.Column(db.Unicode, nullable=True)
password = None
reset_token = db.Column(db.Unicode, nullable=True)
locale = db.Column(db.Unicode, nullable=True)
permissions = db.relationship('Permission', backref='role')
@property
def has_password(self):
return self.password_digest is not None
@property
def is_public(self):
return self.id in self.public_roles()
@property
def is_alertable(self):
if self.email is None:
return False
if self.is_muted is True:
return False
# TODO: ignore people that have not logged in for a certain time?
return True
@property
def label(self):
return anonymize_email(self.name, self.email)
def update(self, data):
self.name = data.get('name', self.name)
self.is_muted = data.get('is_muted', self.is_muted)
self.is_tester = data.get('is_tester', self.is_tester)
if data.get('password'):
self.set_password(data.get('password'))
self.locale = stringify(data.get('locale', self.locale))
self.updated_at = datetime.utcnow()
def clear_roles(self):
"""Removes any existing roles from group membership."""
self.roles = []
self.updated_at = datetime.utcnow()
db.session.add(self)
db.session.flush()
def add_role(self, role):
"""Adds an existing role as a membership of a group."""
self.roles.append(role)
db.session.add(role)
db.session.add(self)
self.updated_at = datetime.utcnow()
def to_dict(self):
data = self.to_dict_dates()
data.update({
'id': stringify(self.id),
'type': self.type,
'name': self.name,
'label': self.label,
'email': self.email,
'locale': self.locale,
'api_key': self.api_key,
'is_admin': self.is_admin,
'is_muted': self.is_muted,
'is_tester': self.is_tester,
'has_password': self.has_password,
# 'notified_at': self.notified_at
})
return data
@classmethod
def by_foreign_id(cls, foreign_id):
if foreign_id is not None:
return cls.all().filter_by(foreign_id=foreign_id).first()
@classmethod
def by_email(cls, email):
if email is None:
return None
q = cls.all()
q = q.filter(func.lower(cls.email) == email.lower())
return q.first()
@classmethod
def by_api_key(cls, api_key):
if api_key is not None:
return cls.all().filter_by(api_key=api_key).first()
@classmethod
def load_or_create(cls, foreign_id, type, name, email=None, is_admin=None):
role = cls.by_foreign_id(foreign_id)
if role is None:
role = cls()
role.foreign_id = foreign_id
role.name = name or email
role.type = type
role.is_admin = False
role.is_muted = False
role.is_tester = False
role.is_blocked = False
role.notified_at = datetime.utcnow()
if role.api_key is None:
role.api_key = make_textid()
if email is not None:
role.email = email
if is_admin is not None:
role.is_admin = is_admin
# see: https://github.com/alephdata/aleph/issues/111
auto_admins = [a.lower() for a in settings.ADMINS]
if email is not None and email.lower() in auto_admins:
role.is_admin = True
db.session.add(role)
db.session.flush()
return role
@classmethod
def load_cli_user(cls):
return cls.load_or_create(foreign_id=settings.SYSTEM_USER,
name='Aleph',
type=cls.USER,
is_admin=True)
@classmethod
def load_id(cls, foreign_id):
"""Load a role and return the ID."""
if not hasattr(settings, '_roles'):
settings._roles = {}
if foreign_id not in settings._roles:
role_id = cls.all_ids().filter_by(foreign_id=foreign_id).first()
if role_id is not None:
settings._roles[foreign_id] = role_id[0]
return settings._roles.get(foreign_id)
@classmethod
def public_roles(cls):
"""Roles which make a collection to be considered public."""
return set([
cls.load_id(cls.SYSTEM_USER),
cls.load_id(cls.SYSTEM_GUEST),
])
@classmethod
def by_prefix(cls, prefix, exclude=[]):
"""Load a list of roles matching a name, email address, or foreign_id.
:param str pattern: Pattern to match.
"""
query = prefix.replace('%', ' ').replace('_', ' ')
query = '%%%s%%' % query
q = cls.all()
q = q.filter(Role.type == Role.USER)
if len(exclude):
q = q.filter(not_(Role.id.in_(exclude)))
q = q.filter(
or_(
func.lower(cls.email) == prefix.lower(),
cls.name.ilike(query)))
q = q.order_by(Role.id.asc())
return q
@classmethod
def all_groups(cls, authz):
q = cls.all()
q = q.filter(Role.type == Role.GROUP)
q = q.order_by(Role.name.asc())
q = q.order_by(Role.foreign_id.asc())
if not authz.is_admin:
q = q.filter(Role.id.in_(authz.roles))
return q
@classmethod
def all_users(cls):
return cls.all().filter(Role.type == Role.USER)
@classmethod
def all_system(cls):
return cls.all().filter(Role.type == Role.SYSTEM)
def set_password(self, secret):
"""Hashes and sets the role password.
:param str secret: The password to be set.
"""
self.password_digest = generate_password_hash(secret)
def check_password(self, secret):
"""Checks the password if it matches the role password hash.
:param str secret: The password to be checked.
:rtype: bool
"""
digest = self.password_digest or ''
return check_password_hash(digest, secret)
def __repr__(self):
return '<Role(%r,%r)>' % (self.id, self.foreign_id)
class Entity(db.Model, UuidModel, SoftDeleteModel):
THING = 'Thing'
name = db.Column(db.Unicode)
schema = db.Column(db.String(255), index=True)
foreign_ids = db.Column(ARRAY(db.Unicode()))
data = db.Column('data', JSONB)
collection_id = db.Column(db.Integer,
db.ForeignKey('collection.id'),
index=True) # noqa
collection = db.relationship(Collection,
backref=db.backref('entities',
lazy='dynamic')) # noqa
@property
def model(self):
return model.get(self.schema)
@property
def terms(self):
terms = set([self.name])
for alias in ensure_list(self.data.get('alias')):
if alias is not None and len(alias):
terms.add(alias)
return terms
@property
def regex_terms(self):
# This is to find the shortest possible regex for each entity.
# If, for example, and entity matches both "Al Qaeda" and
# "Al Qaeda in Iraq, Syria and the Levant", it is useless to
# search for the latter.
terms = set([match_form(t) for t in self.terms])
regex_terms = set()
for term in terms:
if term is None or len(term) < 4 or len(term) > 120:
continue
contained = False
for other in terms:
if other is None or other == term:
continue
if other in term:
contained = True
if not contained:
regex_terms.add(term)
return regex_terms
def delete_matches(self):
pq = db.session.query(Match)
pq = pq.filter(
or_(Match.entity_id == self.id, Match.match_id == self.id))
pq.delete(synchronize_session=False)
db.session.refresh(self)
def delete(self, deleted_at=None):
self.delete_matches()
deleted_at = deleted_at or datetime.utcnow()
for alert in self.alerts:
alert.delete(deleted_at=deleted_at)
super(Entity, self).delete(deleted_at=deleted_at)
@classmethod
def delete_by_collection(cls, collection_id, deleted_at=None):
from aleph.model import Alert
deleted_at = deleted_at or datetime.utcnow()
entities = db.session.query(cls.id)
entities = entities.filter(cls.collection_id == collection_id)
entities = entities.subquery()
pq = db.session.query(Alert)
pq = pq.filter(Alert.entity_id.in_(entities))
pq.update({Alert.deleted_at: deleted_at}, synchronize_session=False)
pq = db.session.query(Match)
pq = pq.filter(Match.entity_id.in_(entities))
pq.delete(synchronize_session=False)
pq = db.session.query(Match)
pq = pq.filter(Match.match_id.in_(entities))
pq.delete(synchronize_session=False)
pq = db.session.query(cls)
pq = pq.filter(cls.collection_id == collection_id)
pq = pq.filter(cls.deleted_at == None) # noqa
pq.update({cls.deleted_at: deleted_at}, synchronize_session=False)
def merge(self, other):
if self.id == other.id:
raise ValueError("Cannot merge an entity with itself.")
if self.collection_id != other.collection_id:
raise ValueError(
"Cannot merge entities from different collections.") # noqa
self.schema = model.precise_schema(self.schema, other.schema)
self.foreign_ids = string_set(self.foreign_ids, self.foreign_ids)
self.created_at = min((self.created_at, other.created_at))
self.updated_at = datetime.utcnow()
data = merge_data(self.data, other.data)
if self.name != other.name:
data = merge_data(data, {'alias': [other.name]})
self.data = data
# update alerts
from aleph.model.alert import Alert
q = db.session.query(Alert).filter(Alert.entity_id == other.id)
q.update({Alert.entity_id: self.id})
# delete source entities
other.delete()
db.session.add(self)
db.session.commit()
db.session.refresh(other)
def update(self, entity):
self.schema = entity.get('schema')
data = entity.get('properties')
if is_mapping(data):
data['name'] = [entity.get('name')]
self.data = self.model.validate(data)
elif self.data is None:
self.data = {}
self.data.pop('name', None)
self.name = entity.get('name')
# TODO: should this be mutable?
# self.foreign_ids = string_set(entity.get('foreign_ids'))
self.updated_at = datetime.utcnow()
db.session.add(self)
@classmethod
def create(cls, data, collection):
foreign_ids = string_set(data.get('foreign_ids'))
ent = cls.by_foreign_ids(foreign_ids, collection.id, deleted=True)
if ent is None:
ent = cls()
ent.id = make_textid()
ent.collection = collection
ent.foreign_ids = foreign_ids
ent.update(data)
ent.deleted_at = None
return ent
@classmethod
def by_foreign_ids(cls, foreign_ids, collection_id, deleted=False):
if not len(foreign_ids):
return None
q = cls.all(deleted=deleted)
q = q.filter(Entity.collection_id == collection_id)
foreign_id = func.cast(foreign_ids, ARRAY(db.Unicode()))
q = q.filter(cls.foreign_ids.contains(foreign_id))
q = q.order_by(Entity.deleted_at.desc().nullsfirst())
return q.first()
@classmethod
def all_ids(cls, deleted=False, authz=None):
q = super(Entity, cls).all_ids(deleted=deleted)
if authz is not None and not authz.is_admin:
q = q.join(Permission,
cls.collection_id == Permission.collection_id)
q = q.filter(Permission.deleted_at == None) # noqa
q = q.filter(Permission.read == True) # noqa
q = q.filter(Permission.role_id.in_(authz.roles))
return q
@classmethod
def latest(cls):
q = db.session.query(func.max(cls.updated_at))
q = q.filter(cls.deleted_at == None) # noqa
return q.scalar()
def __repr__(self):
return '<Entity(%r, %r)>' % (self.id, self.name)
class Collection(db.Model, IdModel, SoftDeleteModel):
"""A set of documents and entities against which access control is
enforced."""
# Category schema for collections.
# TODO: should this be configurable?
CATEGORIES = {
'news': lazy_gettext('News archives'),
'leak': lazy_gettext('Leaks'),
'land': lazy_gettext('Land registry'),
'gazette': lazy_gettext('Gazettes'),
'court': lazy_gettext('Court archives'),
'company': lazy_gettext('Company registries'),
'sanctions': lazy_gettext('Sanctions lists'),
'procurement': lazy_gettext('Procurement'),
'finance': lazy_gettext('Financial records'),
'grey': lazy_gettext('Grey literature'),
'library': lazy_gettext('Document libraries'),
'license': lazy_gettext('Licenses and concessions'),
'regulatory': lazy_gettext('Regulatory filings'),
'poi': lazy_gettext('Persons of interest'),
'customs': lazy_gettext('Customs declarations'),
'census': lazy_gettext('Population census'),
'transport': lazy_gettext('Air and maritime registers'),
'other': lazy_gettext('Other material')
}
DEFAULT = 'other'
label = db.Column(db.Unicode)
summary = db.Column(db.Unicode, nullable=True)
category = db.Column(db.Unicode, nullable=True)
countries = db.Column(ARRAY(db.Unicode()), default=[])
languages = db.Column(ARRAY(db.Unicode()), default=[])
foreign_id = db.Column(db.Unicode, unique=True, nullable=False)
publisher = db.Column(db.Unicode, nullable=True)
publisher_url = db.Column(db.Unicode, nullable=True)
info_url = db.Column(db.Unicode, nullable=True)
data_url = db.Column(db.Unicode, nullable=True)
# A casefile is a type of collection which is used to manage the state
# of an investigation. Unlike normal collections, cases do not serve
# as source material, but as a mechanism of analysis.
casefile = db.Column(db.Boolean, default=False)
creator_id = db.Column(db.Integer, db.ForeignKey('role.id'), nullable=True)
creator = db.relationship(Role)
def touch(self):
# https://www.youtube.com/watch?v=wv-34w8kGPM
self.updated_at = datetime.utcnow()
db.session.add(self)
def update(self, data, authz):
self.label = data.get('label', self.label)
self.summary = data.get('summary', self.summary)
self.summary = data.get('summary', self.summary)
self.publisher = data.get('publisher', self.publisher)
self.publisher_url = data.get('publisher_url', self.publisher_url)
self.info_url = data.get('info_url', self.info_url)
self.data_url = data.get('data_url', self.data_url)
self.countries = ensure_list(data.get('countries', self.countries))
self.languages = ensure_list(data.get('languages', self.languages))
# Some fields are editable only by admins in order to have
# a strict separation between source evidence and case
# material.
if authz.is_admin:
self.category = data.get('category', self.category)
self.casefile = as_bool(data.get('casefile'),
default=self.casefile)
creator = Role.by_id(data.get('creator_id'))
if creator is not None:
self.creator = creator
self.touch()
db.session.flush()
if self.creator is not None:
Permission.grant(self, self.creator, True, True)
@property
def team_id(self):
role = aliased(Role)
perm = aliased(Permission)
q = db.session.query(role.id)
q = q.filter(role.type != Role.SYSTEM)
q = q.filter(role.id == perm.role_id)
q = q.filter(perm.collection_id == self.id)
q = q.filter(perm.read == True) # noqa
q = q.filter(role.deleted_at == None) # noqa
q = q.filter(perm.deleted_at == None) # noqa
return [stringify(i) for (i, ) in q.all()]
@property
def secret(self):
q = db.session.query(Permission.id)
q = q.filter(Permission.role_id.in_(Role.public_roles()))
q = q.filter(Permission.collection_id == self.id)
q = q.filter(Permission.read == True) # noqa
q = q.filter(Permission.deleted_at == None) # noqa
return q.count() < 1
@property
def ns(self):
if not hasattr(self, '_ns'):
self._ns = Namespace(self.foreign_id)
return self._ns
def to_dict(self):
data = self.to_dict_dates()
data['category'] = self.DEFAULT
if self.category in self.CATEGORIES:
data['category'] = self.category
data['kind'] = 'casefile' if self.casefile else 'source'
data.update({
'id': stringify(self.id),
'collection_id': stringify(self.id),
'foreign_id': self.foreign_id,
'creator_id': stringify(self.creator_id),
'team_id': self.team_id,
'label': self.label,
'summary': self.summary,
'publisher': self.publisher,
'publisher_url': self.publisher_url,
'info_url': self.info_url,
'data_url': self.data_url,
'casefile': self.casefile,
'secret': self.secret
})
return data
@classmethod
def by_foreign_id(cls, foreign_id, deleted=False):
if foreign_id is None:
return
q = cls.all(deleted=deleted)
return q.filter(cls.foreign_id == foreign_id).first()
@classmethod
def _apply_authz(cls, q, authz):
if authz is not None and not authz.is_admin:
q = q.join(Permission, cls.id == Permission.collection_id)
q = q.filter(Permission.deleted_at == None) # noqa
q = q.filter(Permission.read == True) # noqa
q = q.filter(Permission.role_id.in_(authz.roles))
return q
@classmethod
def all_authz(cls, authz, deleted=False):
q = super(Collection, cls).all(deleted=deleted)
return cls._apply_authz(q, authz)
@classmethod
def all_by_ids(cls, ids, deleted=False, authz=None):
q = super(Collection, cls).all_by_ids(ids, deleted=deleted)
return cls._apply_authz(q, authz)
@classmethod
def create(cls, data, authz, created_at=None):
foreign_id = data.get('foreign_id') or make_textid()
collection = cls.by_foreign_id(foreign_id, deleted=True)
if collection is None:
collection = cls()
collection.created_at = created_at
collection.foreign_id = foreign_id
collection.category = cls.DEFAULT
collection.casefile = True
collection.creator_id = authz.id
collection.update(data, authz)
collection.deleted_at = None
return collection
def __repr__(self):
fmt = '<Collection(%r, %r, %r)>'
return fmt % (self.id, self.foreign_id, self.label)
class Document(db.Model, DatedModel):
_schema = 'document.json#'
TYPE_TEXT = 'text'
TYPE_TABULAR = 'tabular'
TYPE_OTHER = 'other'
id = db.Column(db.BigInteger, primary_key=True)
content_hash = db.Column(db.Unicode(65), nullable=False, index=True)
foreign_id = db.Column(db.Unicode, unique=False, nullable=True)
type = db.Column(db.Unicode(10), nullable=False, index=True)
_meta = db.Column('meta', JSONB)
collections = db.relationship(
Collection,
secondary=collection_document_table, # noqa
backref=db.backref('documents', lazy='dynamic')) # noqa
source_collection_id = db.Column(db.Integer,
db.ForeignKey('collection.id'),
nullable=True) # noqa
source_collection = db.relationship(Collection)
@property
def title(self):
return self.meta.title
@hybrid_property
def meta(self):
self._meta = self._meta or {}
self._meta['content_hash'] = self.content_hash
self._meta['foreign_id'] = self.foreign_id
return Metadata.from_data(self._meta or {})
@meta.setter
def meta(self, meta):
if isinstance(meta, Metadata):
self.content_hash = meta.content_hash
self.foreign_id = meta.foreign_id
meta = meta.to_attr_dict()
self._meta = meta
flag_modified(self, '_meta')
def update(self, data, writeable):
validate(data, self._schema)
collection_id = data.pop('collection_id', [])
self.update_collections(collection_id, writeable)
meta = self.meta
meta.update(data, safe=True)
self.meta = meta
db.session.add(self)
def update_collections(self, collection_id, writeable):
for coll in self.collections:
if coll.id == self.source_collection_id:
continue
if coll.id not in collection_id and coll.id in writeable:
self.collections.remove(coll)
for coll_id in collection_id:
if coll_id in writeable:
coll = Collection.by_id(coll_id)
if coll not in self.collections:
self.collections.append(coll)
db.session.add(self)
def delete_pages(self):
pq = db.session.query(DocumentPage)
pq = pq.filter(DocumentPage.document_id == self.id)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete_records(self):
pq = db.session.query(DocumentRecord)
pq = pq.filter(DocumentRecord.document_id == self.id)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete_references(self, origin=None):
pq = db.session.query(Reference)
pq = pq.filter(Reference.document_id == self.id)
if origin is not None:
pq = pq.filter(Reference.origin == origin)
pq.delete(synchronize_session='fetch')
db.session.refresh(self)
def delete(self, deleted_at=None):
self.delete_references()
self.delete_records()
self.delete_pages()
db.session.delete(self)
def insert_records(self, sheet, iterable, chunk_size=1000):
chunk = []
for i, data in enumerate(iterable):
chunk.append({
'document_id': self.id,
'row_id': i,
'sheet': sheet,
'data': data
})
if len(chunk) >= chunk_size:
db.session.bulk_insert_mappings(DocumentRecord, chunk)
chunk = []
if len(chunk):
db.session.bulk_insert_mappings(DocumentRecord, chunk)
def text_parts(self):
if self.type == self.TYPE_TEXT:
for page in self.pages:
for text in page.text_parts():
yield text
elif self.type == self.TYPE_TABULAR:
for record in self.records:
for text in record.text_parts():
yield text
@classmethod
def get_max_id(cls):
q = db.session.query(func.max(cls.id))
return q.scalar()
def __repr__(self):
return '<Document(%r,%r,%r)>' % (self.id, self.type, self.meta.title)
@property
def collection_ids(self):
collection_ids = [c.id for c in self.collections]
if self.source_collection_id not in collection_ids:
if self.source_collection_id is not None:
collection_ids.append(self.source_collection_id)
return collection_ids
def _add_to_dict(self, data):
collection_ids = self.collection_ids
try:
from aleph.authz import collections_public
data['public'] = collections_public(collection_ids)
except:
pass
data.update({
'id': self.id,
'type': self.type,
'source_collection_id': self.source_collection_id,
'collection_id': collection_ids,
'created_at': self.created_at,
'updated_at': self.updated_at
})
return data
def to_dict(self):
data = self.meta.to_dict()
return self._add_to_dict(data)
def to_index_dict(self):
data = self.meta.to_index_dict()
return self._add_to_dict(data)
