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- """Tornado handlers for viewing HTML files."""
- # Copyright (c) Jupyter Development Team.
- # Distributed under the terms of the Modified BSD License.
- from jupyter_core.utils import ensure_async
- from tornado import web
- from jupyter_server.auth.decorator import authorized
- from ..base.handlers import JupyterHandler, path_regex
- from ..utils import url_escape, url_path_join
- AUTH_RESOURCE = "contents"
- class ViewHandler(JupyterHandler):
- """Render HTML files within an iframe."""
- auth_resource = AUTH_RESOURCE
- @web.authenticated
- @authorized
- async def get(self, path):
- """Get a view on a given path."""
- path = path.strip("/")
- if not await ensure_async(self.contents_manager.file_exists(path)):
- raise web.HTTPError(404, "File does not exist: %s" % path)
- basename = path.rsplit("/", 1)[-1]
- file_url = url_path_join(self.base_url, "files", url_escape(path))
- self.write(self.render_template("view.html", file_url=file_url, page_title=basename))
- default_handlers = [
- (r"/view%s" % path_regex, ViewHandler),
- ]
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