Source code for deriva.utils.catalog.components.configure_catalog

import logging
from requests import exceptions

from urllib.parse import urlparse

import deriva.core.ermrest_model as em
from deriva.core.ermrest_config import tag as chaise_tags

from deriva.utils.catalog.components.deriva_model import DerivaCatalog, DerivaSchema, DerivaColumn, \
    DerivaTable, DerivaContext, DerivaKey, DerivaForeignKey, DerivaCatalogError, DerivaModel

logger = logging.getLogger(__name__)

chaise_tags.catalog_config = ',2019:catalog-config'

class DerivaConfigError(Exception):
    def __init__(self, msg):
        self.msg = msg

[docs]class DerivaCatalogConfigure(DerivaCatalog): """ DerovaCatalogConfigure extends DerivaCatalog by providing methods for creating a default configuration for a catalog. The only method of interest in this class is configure_baseline_catalog. """ def __init__(self, host, scheme='https', catalog_id=1, validate=True): super().__init__(host, scheme=scheme, catalog_id=catalog_id, validate=validate) def _make_schema_instance(self, schema_name): return DerivaSchemaConfigure(self, schema_name) def _configure_ermrest_client(self, groups): """ Set up ermrest_client table so that it has readable names and uses the display name of the user as the row name. :param groups: :return: """ ermrest_client = self.catalog['public']['ERMrest_Client'] # Make ermrest_client table visible. If the GUID or member name is considered sensitivie, then this needs to be # changed. ermrest_client.acls['select'] = ['*'] # Set table and row name. ermrest_client.annotations.update({ chaise_tags.display: {'name': 'Users'}, chaise_tags.visible_columns: {'compact': ['ID', 'Full_Name', 'Display_Name', 'Email']}, chaise_tags.table_display: {'row_name': {'row_markdown_pattern': '{{{Full_Name}}}'}} }) column_annotations = { 'RCT': {chaise_tags.display: {'name': 'Creation Time'}}, 'RMT': {chaise_tags.display: {'name': 'Modified Time'}}, 'RCB': {chaise_tags.display: {'name': 'Created By'}}, 'RMB': {chaise_tags.display: {'name': 'Modified By'}} } for k, v in column_annotations.items(): ermrest_client.column(k).annotations.update(v) return def _configure_www_schema(self): """ Set up a new schema and tables to hold web-page like content. The tables include a page table, and a asset table that can have images that are referred to by the web page. Pages are written using markdown. :return: """'Configuring WWW schema') # Create a WWW schema if one doesn't already exist. try: www_schema = self.create_schema('WWW', comment='Schema for tables that will be displayed as web content') except DerivaCatalogError as e: if 'already exists' not in e.args[0]: raise else: www_schema = self['WWW'] # Create the page table try: www_schema.create_table( 'Page', column_defs=[ DerivaColumn.define('Title', 'text', nullok=False, comment='Unique title for the page'), DerivaColumn.define('Content', 'markdown', comment='Content of the page in markdown') ], key_defs=[DerivaKey.define(['Title'])], annotations={ chaise_tags.table_display: {'detailed': {'hide_column_headers': True, 'collapse_toc_panel': True} }, chaise_tags.visible_foreign_keys: {'detailed': {}}, chaise_tags.visible_columns: {'detailed': ['Content']}} ) except DerivaCatalogError as e: if 'already exists' not in e.args[0]: raise table = DerivaTableConfigure(self, 'WWW', 'Page') table.configure_table_defaults() # Now set up the asset table try: table.create_asset_table('RID') except ValueError as e: if 'already exists' not in e.args[0]: raise return self def _set_core_groups(self, catalog_name=None, admin=None, curator=None, writer=None, reader=None, replace=False): """ Look in the catalog to get the group IDs for the four core groups used in the baseline configuration. There are three options: 1) core group name can be provided explicitly, 2) group name can be formed from a catalog name and a default group name, 3) group name can be formed from the host name and a default group name. :param catalog_name: Name of the catalog to use as a prefix in looking up default name of the group. Default group names are formed by combining the catalog_name with the standard group name: e.g. foo-admin foo-writer, and foo-reader :param admin: Group name to use in place of default :param curator: Group name to use in place of default :param writer: Group name to use in lace of default :param reader: Either '*' for anonymous read access, or the group name to use in place of default :param replace: Ignore existing catalog config and use provided arguements. :return: dictionary with the four group ids. """ groups = {} # Get previous catalog configuration values if they exist if chaise_tags.catalog_config in self.annotations and not replace: groups.update({ 'admin': self.annotations[chaise_tags.catalog_config]['groups']['admin'], 'curator': self.annotations[chaise_tags.catalog_config]['groups']['curator'], 'writer': self.annotations[chaise_tags.catalog_config]['groups']['writer'], 'reader': self.annotations[chaise_tags.catalog_config]['groups']['reader'] }) else: if admin == '*' or curator == '*' or writer == '*': raise DerivaConfigError(msg='Only reader may be anonymous when setting core catalog groups') if not catalog_name and (admin is None or curator is None or writer is None or reader is None): raise DerivaConfigError(msg='Catalog name required to look up group') if admin is None: admin = catalog_name + '-admin' if curator is None: curator = catalog_name + '-curator' if writer is None: writer = catalog_name + '-writer' if reader is None: reader = catalog_name + '-reader' pb = self.getPathBuilder() catalog_groups = {i['Display_Name']: i for i in pb.public.ERMrest_Group.entities()} groups = {} try: groups.update({ 'admin': catalog_groups[admin]['ID'], 'curator': catalog_groups[curator]['ID'], 'writer': catalog_groups[writer]['ID'], 'reader': catalog_groups[reader]['ID'] if reader is not '*' else '*' }) except KeyError as e: raise DerivaConfigError(msg='Group {} not defined'.format(e.args[0])) return groups def _configure_group_table(self, groups): """ Create a table in the public schema for tracking mapping of group names. :param groups: :return: """'Configuring groups') ermrest_group = self['public']['ERMrest_Group'] # Make ERMrest_Group table visible to writers, curators, and admins. ermrest_group.acls['select'] = [groups['writer'], groups['curator'], groups['admin']] # Set table and row name. ermrest_group.annotations.update({ chaise_tags.display: {'name': 'Globus Group'}, chaise_tags.visible_columns: {'*': ['Display_Name', 'Description', 'URL', 'ID']}, chaise_tags.table_display: {'row_name': {'row_markdown_pattern': '{{{Display_Name}}}'}} }) # Set compound key so that we can link up with Visible_Group table. try: ermrest_group.create_key(['ID', 'URL', 'Display_Name', 'Description'], comment='Group ID is unique.') except DerivaCatalogError: pass # Create a catalog groups table column_defs = [ DerivaColumn.define('Display_Name', em.builtin_types['text']), DerivaColumn.define('URL', em.builtin_types['text'], annotations={ chaise_tags.column_display: { '*': {'markdown_pattern': '[**{{Display_Name}}**]({{{URL}}})'}}, chaise_tags.display: {'name': 'Group Management Page'} } ), DerivaColumn.define('Description', em.builtin_types['text']), DerivaColumn.define('ID', em.builtin_types['text'], nullok=False) ] key_defs = [ DerivaKey.define(['ID']), DerivaKey.define(['ID', 'URL', 'Display_Name', 'Description'], comment='Key to ensure that group only is entered once.' ), ] # Set up a foreign key to the group table so that the creator of a record can only select # groups of which they are members of for values of the Owners column. fkey_group_policy = { # FKey to group can be created only if you are a member of the group you are referencing 'set_owner': {"types": ["insert"], "projection": ["ID"], "projection_type": "acl"} } # Allow curators to also update the foreign key. fkey_group_acls = {"insert": [groups['curator']], "update": [groups['curator']]} # Create a foreign key to the group table. Set update policy to keep group entry in sync. fkey_defs = [ DerivaForeignKey.define(['ID', 'URL', 'Display_Name', 'Description'], ermrest_group, ['ID', 'URL', 'Display_Name', 'Description'], on_update='CASCADE', acls=fkey_group_acls, acl_bindings=fkey_group_policy, ) ] # Create the visible groups table. Set ACLs so that writers or curators can add entries or edit. Allow writers # to be able to create new entries. No one is allowed to update, as this is only done via the CASCADE. # Get or create Catalog_Group table.... try: self['public'].create_table( 'Catalog_Group', column_defs=column_defs, key_defs=key_defs, fkey_defs=fkey_defs, comment=None, acls={ # Make ERMrest_Group table visible to members of the group members, curators, and admins. 'select': [groups['reader']], 'insert': [groups['writer'], groups['curator']] }, acl_bindings={}, annotations={ chaise_tags.table_display: { 'row_name': {'row_markdown_pattern': '{{{Display_Name}}}'}}}, ) except ValueError as e: if 'already exists' not in e.args[0]: raise table = DerivaTableConfigure(self, 'public', 'Catalog_Group') table.configure_table_defaults(set_policy=False) return
[docs] def configure_baseline_catalog(self, catalog_name=None, admin=None, curator=None, writer=None, reader=None, set_policy=True, public=False): """ Put catalog into standard configuration which includes: 1. Setting default display mode to be to turn underscores to spaces. 2. Set access control assuming admin, curator, writer, and reader groups. 3. Configure ermrest_client to have readable names. 4. Create a schema called *WWW* and create a *Page* table in that schema configured to display web-page like content. :param catalog_name: Name to use when looking up catalog groups. Defaults to host name if not provided. :param admin: Name of the admin group. Defaults to catalog-admin, where catalog is the catalog_name :param curator: Name of the curator group. Defaults to catalog-curator :param writer: Name of the writer group. Defaults to catalog-writer :param reader: Name of the reader group. Defaults to catalog-reader :param set_policy: Set policy for catalog to support reader/writer/curator/admin groups. :param public: Set to true if anonymous read access should be allowed. """ with DerivaModel(self.catalog): if not catalog_name: # If catalog name is not provided, default to the host name of the host. catalog_name = urlparse(self.ermrest_catalog.get_server_uri()).hostname.split('.')[0] groups = self._set_core_groups(catalog_name=catalog_name, admin=admin, curator=curator, writer=writer, reader=reader) # Record configuration of catalog so we can retrieve when we configure tables later on. self.annotations[chaise_tags.catalog_config] = {'name': catalog_name, 'groups': groups} # Set up default name style for all schemas. for s in self.schemas: s.annotations[chaise_tags.display] = {'name_style': {'underline_space': True}} # modify catalog ACL config to support basic admin/curator/writer/reader access. if set_policy: self.acls.update({ "owner": [groups['admin']], "insert": [groups['curator'], groups['writer']], "update": [groups['curator']], "delete": [groups['curator']], "select": [groups['writer'], groups['reader']] if not public else ['*'], "enumerate": ["*"], }) self._configure_ermrest_client(groups) self._configure_group_table(groups) self._configure_www_schema()
def update_group_table(catalog): def group_urls(group): guid = group.split('/')[-1] link = '' + guid uri = '' + guid return link, uri pb = catalog.getPathBuilder() # Attempt to add URL. This can go away once we have URL entered by ERMrest. pb.public.ERMrest_Group.update( [{'RID': i['RID'], 'URL': group_urls(i['ID'])[0]} for i in pb.public.ERMrest_Group.entities()] ) class DerivaSchemaConfigure(DerivaSchema): """ This is a shim class that is used to make sure that a DerivaCatalogConfigure returns a DerivaTableConfigure """ def __init__(self, catalog, schema_name): super(DerivaSchemaConfigure, self).__init__(catalog, schema_name) def _make_table_instance(self, schema_name, table_name): return DerivaTableConfigure(self.catalog, schema_name, table_name)
[docs]class DerivaTableConfigure(DerivaTable): """ This class is used to create a default configuration for a Deriva Table. """ def __init__(self, catalog, schema_name, table_name): super(DerivaTableConfigure, self).__init__(catalog, schema_name, table_name) return
[docs] def configure_self_serve_policy(self, groups): """ Set up a table so it has a self service policy. Add an owner column if one is not present, and set the acl binding so that it follows the self service policy. :param groups: dictionary of core catalog groups :return: """ # Configure table so that access can be assigned to a group. This requires that we create a column and # establish a foreign key to an entry in the group table. We will set the access control on the foreign key # so that you are only able to delagate access to a the creator of the entity belongs to. if 'Owner' not in self.columns: self.create_columns(DerivaColumn.define('Owner', 'text', comment='Group that can update the record.')) # Now configure the policy on the table... self_service_policy = { # Set up a policy for the table that allows the creator of the record to update and delete the record. "self_service_creator": { "types": ["update", 'delete'], "projection": ["RCB"], "projection_type": "acl" }, # Set up a policy for the table that allows members of the group referenced by the Owner column to # update and delete the record. 'self_service_group': { "types": ["update", "delete"], "projection": ["Owner"], "projection_type": "acl" } } # Make table policy be self service, creators and owners can update. self.acl_bindings.update(self_service_policy) # Set up a foreign key to the group table on the owners column so that the creator of a record can only # select groups of which they are members of for values of the Owners column. fkey_group_policy = { # FKey to group can be created only if you are a member of the group you are referencing 'set_owner': {"types": ["update", "insert"], "projection": ["ID"], "projection_type": "acl"} } # Allow curators to also update the foreign key. fkey_group_acls = {"insert": [groups['curator']], "update": [groups['curator']]} # Delete old fkey if there is one laying around.... for fk in self.foreign_keys: if len(fk.columns) == 1 and next(iter(fk.columns)).name == 'Owner': fk.delete() # Now create the foreign key to the group table. self.create_foreign_key(['Owner'], self.catalog['public']['Catalog_Group'], ['ID'], acls=fkey_group_acls, acl_bindings=fkey_group_policy, ) return
[docs] def create_default_visible_columns(self, really=False): column_sources, outbound_sources, inbound_sources = self.sources(merge_outbound=True) location = {'RCB': ['Owner']} if 'Owner' in self.columns else {} # Don't overwrite existing annotations if they are already in place. if chaise_tags.visible_columns not in self.annotations: self.annotations[chaise_tags.visible_columns] = {} positions = {} if '*' not in self.annotations[chaise_tags.visible_columns] or really: positions.update({DerivaContext('*'): location}) self.visible_columns.insert_context(DerivaContext('*'), column_sources) if 'entry' not in self.annotations[chaise_tags.visible_columns] or really: positions.update({DerivaContext('entry'): location}) self.visible_columns.insert_context(DerivaContext('entry'), column_sources) self.visible_columns.reorder_visible_source(positions)
[docs] def create_default_visible_foreign_keys(self, really=False): _, _, inbound_sources = self.sources() self.logger.debug('visible_fkeys {}'.format(inbound_sources)) # Don't overwrite existing annotations if they are already in place. if chaise_tags.visible_foreign_keys not in self.annotations: self.annotations[chaise_tags.visible_foreign_keys] = {} if '*' not in self.annotations[chaise_tags.visible_foreign_keys] or really: self.visible_foreign_keys.insert_context(DerivaContext('*'), inbound_sources)
[docs] def configure_table_defaults(self, set_policy=True, public=False, reset_visible_columns=True): """ This function adds the following basic configuration details to an existing table: 1. Creates a self service modification policy in which creators can update update any row they create. Optionally, an Owner column can be provided, which allows the creater of a row to delegate row ownership to a specific group. 2. Adds display annotations and foreign key declarations so that system columns RCB, RMB display in a user friendly way. 3. Adds a visible_foreign_keys and visible_columns annotation. :param set_policy: If true, then configure the table to have a self service policy :param public: Make table acessible without logging in. :param reset_visible_columns: Overwrite any existing visible_columns annotation. """ if chaise_tags.catalog_config not in self.catalog.annotations: raise DerivaConfigError(msg='Attempting to configure table before catalog is configured') # Hack to update description and URL until we get these passed through ermrest.... update_group_table(self.catalog) if public: # First copy over any inherited ACLS. self.acls.update({**self.schema.acls, **self.acls}) self.acls.pop("create", None) # Now add permision for anyone to read. self.acls['select'] = ['*'] if set_policy: self.configure_self_serve_policy(self.catalog.get_groups()) # Configure schema if not already done so. if chaise_tags.display not in self.schema.annotations: self.schema.annotations[chaise_tags.display] = {} if 'name_style' not in self.schema.annotations[chaise_tags.display]: self.schema.annotations[chaise_tags.display].update({'name_style': {'underline_space': True}}) # Set up foreign key to ermrest_client on RCB, RMB and Owner. If ermrest_client is configured, the # full name of the user will be used for the FK value. for col, display in [('RCB', 'Created By'), ('RMB', 'Modified By')]: # Delete old fkey if there is one laying around.... for fk in self.foreign_keys: if len(fk.columns) == 1 and next(iter(fk.columns)).name == col: fk.delete() self.create_foreign_key([col], self.catalog['public']['ERMrest_Client'], ['ID']) # Add a display annotation so that we have sensible name for RCB and RMB. self.columns[col].annotations[chaise_tags.display] = {'name': display} self.columns['RCT'].annotations.update({chaise_tags.display: {'name': 'Creation Time'}}) self.columns['RMT'].annotations.update({chaise_tags.display: {'name': 'Modified Time'}}) self.create_default_visible_columns(really=reset_visible_columns)