Source code for galaxy.webapps.galaxy.controllers.shed_tool_static

import logging
import os

from galaxy import web
from galaxy.exceptions import RequestParameterInvalidException
from galaxy.util.path import join, safe_contains
from galaxy.webapps.base.controller import BaseUIController

log = logging.getLogger(__name__)


[docs]class ShedToolStatic(BaseUIController):

[docs]    @web.expose
    def index(self, trans, shed, owner, repo, tool, version, image_file):
        """
        Open an image file that is contained in an installed tool shed repository or that is referenced by a URL for display.  The
        image can be defined in either a README.rst file contained in the repository or the help section of a Galaxy tool config that
        is contained in the repository.  The following image definitions are all supported.  The former $PATH_TO_IMAGES is no longer
        required, and is now ignored.
        .. image:: https://raw.github.com/galaxy/some_image.png
        .. image:: $PATH_TO_IMAGES/some_image.png
        .. image:: /static/images/some_image.gif
        .. image:: some_image.jpg
        .. image:: /deep/some_image.png
        """
        guid = '/'.join([shed, 'repos', owner, repo, tool, version])
        tool = trans.app.toolbox.get_tool(guid)
        repo_path = tool._repository_dir
        if 'static/images' not in image_file:
            path = join(repo_path, 'static', 'images', image_file)
        else:
            path = join(repo_path, image_file)
        if not safe_contains(os.path.abspath(repo_path), os.path.abspath(path)):
            raise RequestParameterInvalidException()
        ext = os.path.splitext(image_file)[-1].lstrip('.')
        if ext:
            mime = trans.app.datatypes_registry.get_mimetype_by_extension(ext)
            if mime:
                trans.response.set_content_type(mime)
        if os.path.exists(path):
            return open(path, 'rb')