Source code for galaxy.webapps.galaxy.api.configuration

"""
API operations allowing clients to determine Galaxy instance's capabilities
and configuration settings.
"""
import json
import logging
import os

from galaxy.managers import configuration, users
from galaxy.queue_worker import send_control_task
from galaxy.web import (
    _future_expose_api as expose_api,
    _future_expose_api_anonymous_and_sessionless as expose_api_anonymous_and_sessionless,
    require_admin
)
from galaxy.web.base.controller import BaseAPIController

log = logging.getLogger(__name__)


class ConfigurationController(BaseAPIController):

    def __init__(self, app):
        super(ConfigurationController, self).__init__(app)
        self.config_serializer = configuration.ConfigSerializer(app)
        self.admin_config_serializer = configuration.AdminConfigSerializer(app)
        self.user_manager = users.UserManager(app)

    @expose_api
    def whoami(self, trans, **kwd):
        """
        GET /api/whoami
        Return information about the current authenticated user.

        :returns: dictionary with user information
        :rtype:   dict
        """
        current_user = self.user_manager.current_user(trans)
        rval = None
        if current_user:  # None for master API key for instance
            rval = current_user.to_dict()
        return rval

    @expose_api_anonymous_and_sessionless
    def index(self, trans, **kwd):
        """
        GET /api/configuration
        Return an object containing exposable configuration settings.

        Note: a more complete list is returned if the user is an admin.
        """
        is_admin = trans.user_is_admin
        serialization_params = self._parse_serialization_params(kwd, 'all')
        return self.get_config_dict(trans, is_admin, **serialization_params)

    @expose_api_anonymous_and_sessionless
    def version(self, trans, **kwds):
        """
        GET /api/version
        Return a description of the major version of Galaxy (e.g. 15.03).

        :rtype:     dict
        :returns:   dictionary with major version keyed on 'version_major'
        """
        extra = {}
        try:
            version_file = os.environ.get("GALAXY_VERSION_JSON_FILE", self.app.container_finder.app_info.galaxy_root_dir + "/version.json")
            with open(version_file, "r") as f:
                extra = json.load(f)
        except Exception:
            pass
        return {"version_major": self.app.config.version_major, "extra": extra}

    def get_config_dict(self, trans, return_admin=False, view=None, keys=None, default_view='all'):
        """
        Return a dictionary with (a subset of) current Galaxy settings.

        If `return_admin` also include a subset of more sensitive keys.
        Pass in `view` (String) and comma seperated list of keys to control which
        configuration settings are returned.
        """
        serializer = self.config_serializer
        if return_admin:
            # TODO: this should probably just be under a different route: 'admin/configuration'
            serializer = self.admin_config_serializer

        serialized = serializer.serialize_to_view(self.app.config, view=view, keys=keys, default_view=default_view)
        return serialized

    @expose_api
    @require_admin
    def dynamic_tool_confs(self, trans):
        # WARNING: If this method is ever changed so as not to require admin privileges, update the nginx proxy
        # documentation, since this path is used as an authentication-by-proxy method for securing other paths on the
        # server. A dedicated endpoint should probably be added to do that instead.
        confs = self.app.toolbox.dynamic_confs(include_migrated_tool_conf=True)
        return list(map(_tool_conf_to_dict, confs))

    @expose_api
    @require_admin
    def decode_id(self, trans, encoded_id, **kwds):
        """Decode a given id."""
        decoded_id = None
        # Handle the special case for library folders
        if ((len(encoded_id) % 16 == 1) and encoded_id.startswith('F')):
            decoded_id = trans.security.decode_id(encoded_id[1:])
        else:
            decoded_id = trans.security.decode_id(encoded_id)
        return {"decoded_id": decoded_id}

    @expose_api
    @require_admin
    def tool_lineages(self, trans):
        rval = []
        for id, tool in self.app.toolbox.tools():
            if hasattr(tool, 'lineage'):
                lineage_dict = tool.lineage.to_dict()
            else:
                lineage_dict = None

            entry = dict(
                id=id,
                lineage=lineage_dict
            )
            rval.append(entry)
        return rval

    @expose_api
    @require_admin
    def reload_toolbox(self, trans, **kwds):
        """
        PUT /api/configuration/toolbox
        Reload the Galaxy toolbox (but not individual tools).
        """
        send_control_task(self.app.toolbox.app, 'reload_toolbox')


def _tool_conf_to_dict(conf):
    return dict(
        config_filename=conf['config_filename'],
        tool_path=conf['tool_path'],
    )