79 lines
2.8 KiB
Python
79 lines
2.8 KiB
Python
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"""Tornado handlers for the tree view."""
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# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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from tornado import web
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import os
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from ..base.handlers import IPythonHandler, path_regex
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from ..utils import url_path_join, url_escape
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class TreeHandler(IPythonHandler):
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"""Render the tree view, listing notebooks, etc."""
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def generate_breadcrumbs(self, path):
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breadcrumbs = [(url_path_join(self.base_url, 'tree'), '')]
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parts = path.split('/')
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for i in range(len(parts)):
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if parts[i]:
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link = url_path_join(self.base_url, 'tree',
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url_escape(url_path_join(*parts[:i+1])),
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)
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breadcrumbs.append((link, parts[i]))
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return breadcrumbs
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def generate_page_title(self, path):
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comps = path.split('/')
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if len(comps) > 3:
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for i in range(len(comps)-2):
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comps.pop(0)
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page_title = url_path_join(*comps)
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if page_title:
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return page_title+'/'
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else:
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return 'Home Page - Select or create a notebook'
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@web.authenticated
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def get(self, path=''):
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path = path.strip('/')
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cm = self.contents_manager
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if cm.dir_exists(path=path):
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if cm.is_hidden(path) and not cm.allow_hidden:
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self.log.info("Refusing to serve hidden directory, via 404 Error")
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raise web.HTTPError(404)
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breadcrumbs = self.generate_breadcrumbs(path)
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page_title = self.generate_page_title(path)
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self.write(self.render_template('tree.html',
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page_title=page_title,
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notebook_path=path,
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breadcrumbs=breadcrumbs,
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terminals_available=self.settings['terminals_available'],
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server_root=self.settings['server_root_dir'],
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shutdown_button=self.settings.get('shutdown_button', False)
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))
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elif cm.file_exists(path):
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# it's not a directory, we have redirecting to do
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model = cm.get(path, content=False)
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# redirect to /api/notebooks if it's a notebook, otherwise /api/files
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service = 'notebooks' if model['type'] == 'notebook' else 'files'
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url = url_path_join(
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self.base_url, service, url_escape(path),
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)
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self.log.debug("Redirecting %s to %s", self.request.path, url)
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self.redirect(url)
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else:
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raise web.HTTPError(404)
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#-----------------------------------------------------------------------------
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# URL to handler mappings
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#-----------------------------------------------------------------------------
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default_handlers = [
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(r"/tree%s" % path_regex, TreeHandler),
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(r"/tree", TreeHandler),
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]
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