class KVPair(db.Model):
__tablename__ = 'kvpair'
key = db.Column(db.String(64), primary_key=True)
value = db.Column(db.Text)
def __init__(self, key, value):
self.key = key
self.value = value
class User(db.Model):
__tablename__ = 'user'
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(64), unique=True)
password = db.Column(db.String(256))
auth_token = db.Column(db.String(256))
def __init__(self, username, password):
self.username = username
self.password = hash_password(password)
self.auth_token = pwd_context.encrypt('{0}{1}'.format(
username, app.config['SECRET_KEY']))
def verify_password(self, password):
return pwd_context.verify(password, self.password)
def change_password(self, password):
self.password = hash_password(password)
self.auth_token = pwd_context.encrypt('{0}{1}'.format(
self.username, app.config['SECRET_KEY']))
@property
def is_authenticated(self):
return True
@property
def is_active(self):
return True
@property
def is_anonymous(self):
return False
@property
def is_admin(self):
if self.username == 'admin':
return True
else:
return False
def get_id(self):
try:
return unicode(self.id)
except NameError:
return str(self.id)
def __repr__(self):
return '<User %r>' % self.username
def get_auth_token(self):
return self.auth_token
class Log(db.Model):
__tablename__ = 'log'
id = db.Column(db.Integer, primary_key=True)
entity = db.Column(db.String(ID_MAX))
user = db.Column(db.String(32))
timestamp = db.Column(db.DateTime)
data = db.Column(db.Text)
def __init__(self, entity, user, data):
self.entity = entity
self.data = data
self.user = user
self.timestamp = datetime.now()
def __repr__(self):
return 'Entity `%s\', user `%s\' (%s): %s' %\
(self.entity, self.user, self.timestamp, self.data)
class ImportLog(db.Model):
__tablename__ = 'ImportLog'
id = db.Column(db.Integer, primary_key=True)
import_id = db.Column(db.String(ID_MAX))
# XXX: Do not add a foreign key constraint referencing User
user = db.Column(db.String(32))
timestamp = db.Column(db.DateTime)
data = db.Column(db.Text)
def __init__(self, import_id, user, data):
self.import_id = import_id
self.data = data
self.user = user
self.timestamp = datetime.now()
def __repr__(self):
return 'Import `%s\', user `%s\' (%s): %s' %\
(self.import_id, self.user, self.timestamp, self.data)
class DocumentHit(db.Model):
__tablename__ = 'documenthit'
id = db.Column(db.Integer, primary_key=True)
ip = db.Column(db.String(15))
document_id = db.Column(
db.Integer,
db.ForeignKey("document.id", onupdate='cascade', ondelete='cascade'))
referrer = db.Column(db.String(128))
timestamp = db.Column(db.DateTime)
def __init__(self, document, ip, referrer):
self.document_id = document
self.ip = ip
self.referrer = clean_url(referrer) if referrer else referrer
self.timestamp = datetime.now()
def __repr__(self):
return '<DocumentHit, time=%s, document=%s, type=%s>' %\
(self.timestamp, self.document_id, self.document.type)
class Data(Document):
__tablename__ = 'data'
id = db.Column(db.Integer,
db.ForeignKey('document.id',
onupdate='cascade',
ondelete='cascade'),
primary_key=True)
_format = db.Column('format', db.Enum(*data_formats, name='Format'))
__mapper_args__ = {'polymorphic_identity': 'data'}
def __init__(self, entity, format, url=None, enabled=True, notes=None):
super(Data, self).__init__(entity,
url=url,
enabled=enabled,
notes=notes)
if format in data_formats:
self.format = format
else:
raise Exception("Incorrect data format")
def __repr__(self):
return '<Data(%s), entity=%s, format=%s, url=%s, enabled=%s>' %\
(self.id, self.entity_id, self.format, self.url, self.enabled)
@property
def data_pid(self):
url = '{base_url}/collection/{entity_type}/data/{entity_id}'.format(
base_url=app.config['BASE_URL'],
entity_type=self.entity.type,
entity_id=self.entity_id)
return url
@property
def persistent_uri(self):
uri = app.config['BASE_URL']
uri += '/collection/%s/data/%s/%s' % (self.entity.type, self.entity_id,
self.format)
p = urlparse.urlparse(uri, 'http')
netloc = p.netloc or p.path
path = p.path if p.netloc else ''
p = urlparse.ParseResult('http', netloc, path, *p[3:])
uri = p.geturl()
uris = [uri]
if kvstore.get('titles_enabled'):
uris.append(uri + '/' + self.entity.slug)
if self.format == 'html':
uris.append(uri[:-5])
return uris
def to_dict(self):
dict = super(Data, self).to_dict()
dict['format'] = self.format
return dict
@property
def format(self):
return self._format
@format.setter
def format(self, value):
if value not in data_formats:
raise Exception("Incorrect data format")
if self._format != value:
log(
self.entity_id, "Changed format from '%s' to '%s' for %s" %
(self._format, value, self))
self._format = value
format = db.synonym('_format', descriptor=format)
class Entity(db.Model):
__tablename__ = 'entity'
_id = db.Column('id', db.String(ID_MAX), primary_key=True)
original_id = db.Column(db.String(ID_MAX))
_type = db.Column('type', db.Enum(*entity_types, name='EntityType'))
_title = db.Column('title', db.String(TITLE_MAX))
slug = db.Column(db.String(SLUG_MAX))
_documents = db.relationship(
"Document",
#cascade='all,delete',
cascade='all,delete-orphan',
backref='entity',
order_by='Document.type')
def __init__(self, id, type='work', title=None):
self.id = id
self.type = type
self.title = title
def __repr__(self):
return '<Entity(%s), id=%s (%s), title=%s>' %\
(self.type, self.id, self.original_id, self.title)
@property
def persistent_uri(self):
url = app.config['BASE_URL'] + '/collection/%s' % self.id
p = urlparse.urlparse(url, 'http')
netloc = p.netloc or p.path
path = p.path if p.netloc else ''
p = urlparse.ParseResult('http', netloc, path, *p[3:])
url = p.geturl()
if kvstore.get('titles_enabled'):
return [url, url + '/%s' % self.slug]
else:
return [url]
@property
def work_pid(self):
url = '{base_url}/collection/{entity_id}'.format(
base_url=app.config['BASE_URL'], entity_id=self.id)
return url
@property
def persistent_uris(self):
uris = self.persistent_uri
for doc in self.documents:
uris += doc.persistent_uri
return uris
@property
def title(self):
return self._title
@title.setter
def title(self, value):
if self._title != value:
log(self.id,
"Changed title from '%s' to '%s'" % (self._title, value))
self._title = value
self.slug = slugify(value)[:64] if value else SLUG_DEFAULT
@property
def id(self):
return self._id
@id.setter
def id(self, value):
new_id = cleanID(value)
ent = Entity.query.filter(Entity.id == new_id).first()
# check against self (in case we're changing an existing entity's PID)
if ent and not ent == self:
# PID already in DB. If the unclean PID is not equal to the existing
# entity's original PID, this is probably a collision.
if value == ent.original_id:
raise EntityPIDExistsException()
else:
raise EntityCollisionException(ent.original_id)
if self._id != new_id:
log(self.id, "Changed id from '%s' to '%s'" % (self._id, new_id))
self.original_id = value
self._id = new_id
@property
def type(self):
return self._type
@type.setter
def type(self, value):
if value not in entity_types:
raise Exception("Wrong entity type")
if self._type != value:
log(self.id,
"Changed type from '%s' to '%s'" % (self._type, value))
self._type = value
@property
def documents(self):
def sort_help(a, b):
# Helper function for sorting the documents list
if (a.type == 'data') or (b.type == 'data'):
return 0
else:
return -1 if a.order < b.order else 1
docs = self._documents
return sorted(docs, sort_help)
@property
def active_documents(self):
count = 0
for document in self.documents:
if document.enabled and\
(document.url != '' or document.url != None):
count += 1
return count
id = db.synonym('_id', descriptor=id)
title = db.synonym('_title', descriptor=title)
type = db.synonym('_type', descriptor=type)
class Representation(Document):
__tablename__ = 'representation'
id = db.Column(db.Integer,
db.ForeignKey('document.id',
onupdate='cascade',
ondelete='cascade'),
primary_key=True)
order = db.Column(db.Integer)
_reference = db.Column('reference', db.Boolean)
label = db.Column(db.String(LABEL_MAX))
__mapper_args__ = {'polymorphic_identity': 'representation'}
def __init__(self,
entity,
order,
label=None,
url=None,
enabled=True,
notes=None,
reference=False):
super(Representation, self).__init__(entity,
url=url,
enabled=enabled,
notes=notes)
self.order = order
self.reference = reference
self.label = label
def __repr__(self):
if self.label:
return '<Representation(%s), entity=%s, label=%s, url=%s, order=%s, ref=%s, enabled=%s>' %\
(self.id, self.entity_id, self.label, self.url, self.order,
self.reference, self.enabled)
else:
return '<Representation(%s), entity=%s, url=%s, order=%s, ref=%s>' %\
(self.id, self.entity_id, self.url, self.order, self.reference)
@property
def persistent_uri(self):
uri = app.config['BASE_URL']
uri += '/collection/%s/representation/%s/%s' % (
self.entity.type, self.entity_id, self.order)
p = urlparse.urlparse(uri, 'http')
netloc = p.netloc or p.path
path = p.path if p.netloc else ''
p = urlparse.ParseResult('http', netloc, path, *p[3:])
uri = p.geturl()
uris = [uri]
if kvstore.get('titles_enabled'):
uris.append(uri + '/' + self.entity.slug)
if self.reference:
uri = app.config[
'BASE_URL'] + '/collection/%s/representation/%s' % (
self.entity.type, self.entity_id)
p = urlparse.urlparse(uri, 'http')
netloc = p.netloc or p.path
path = p.path if p.netloc else ''
p = urlparse.ParseResult('http', netloc, path, *p[3:])
uri = p.geturl()
uris.append(uri)
return uris
def to_dict(self):
dict = super(Representation, self).to_dict()
dict['order'] = self.order
dict['reference'] = self.reference
dict['label'] = self.label
return dict
@property
def reference(self):
return self._reference
@reference.setter
def reference(self, value):
value = bool(value)
if self._reference and (not value):
log(self.entity_id, "Removed as reference: %s" % self)
elif (not self._reference) and value:
log(self.entity_id, "Set as reference: %s" % self)
self._reference = value
reference = db.synonym('_reference', descriptor=reference)
class Document(db.Model):
__tablename__ = 'document'
id = db.Column(db.Integer, primary_key=True)
entity_id = db.Column(db.String(64), db.ForeignKey("entity.id",
onupdate='cascade',
ondelete='cascade'))
_enabled = db.Column('enabled', db.Boolean)
notes = db.Column(db.Text)
_url = db.Column('url', db.String(512))
type = db.Column(db.String(50))
hits = db.relationship('DocumentHit',
#cascade='all,delete',
cascade='all, delete-orphan',
backref='document')
__mapper_args__ = {
'polymorphic_identity': 'document',
'polymorphic_on': type
}
def __init__(self, entity_id, url=None, enabled=True, notes=None):
self.url = url
self.entity_id = entity_id
self.enabled = enabled
self.notes = notes
def __repr__(self):
raise Exception("Implement me")
def to_dict(self):
return {'url':self.url if self.url else "",
'enabled':self.enabled,
'id':self.id,
'type':self.type,
'notes':self.notes,
'resolves':self.resolves,
'entity':self.entity_id}
@property
def persistent_uri(self):
raise Exception("Implement me")
@property
def resolves(self):
if self.url:
try:
r = requests.head(self.url, allow_redirects=True)
if r.status_code == 200:
return True
else:
return False
except:
return False
else:
return False
@property
def url(self):
return self._url
@url.setter
def url(self, url):
# TODO: URL validation here
old = self._url
if url:
u = urlparse(url)
if u.scheme:
self._url = url
else:
self._url = urlunparse(('http',)+u[1:])
else:
self._url = None
if old != self._url:
log(self.entity_id, "Changed URL from '%s' to '%s' for %s" %
(old, self._url, self))
@property
def enabled(self):
return self._enabled
@enabled.setter
def enabled(self, value):
value = bool(value)
if self._enabled and (not value):
log(self.entity_id, "Disabled document %s" % self)
elif (not self._enabled) and value:
log(self.entity_id, "Enabled document %s" % self)
self._enabled = value
enabled = db.synonym('_enabled', descriptor=enabled)
url = db.synonym('_url', descriptor=url)
