/usr/lib/python2.7/dist-packages/IPython/html/nbconvert/handlers.py is in ipython-notebook 2.3.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | import io
import os
import zipfile
from tornado import web
from ..base.handlers import IPythonHandler, notebook_path_regex
from IPython.nbformat.current import to_notebook_json
from IPython.utils import tz
from IPython.utils.py3compat import cast_bytes
import sys
def find_resource_files(output_files_dir):
files = []
for dirpath, dirnames, filenames in os.walk(output_files_dir):
files.extend([os.path.join(dirpath, f) for f in filenames])
return files
def respond_zip(handler, name, output, resources):
"""Zip up the output and resource files and respond with the zip file.
Returns True if it has served a zip file, False if there are no resource
files, in which case we serve the plain output file.
"""
# Check if we have resource files we need to zip
output_files = resources.get('outputs', None)
if not output_files:
return False
# Headers
zip_filename = os.path.splitext(name)[0] + '.zip'
handler.set_header('Content-Disposition',
'attachment; filename="%s"' % zip_filename)
handler.set_header('Content-Type', 'application/zip')
# Prepare the zip file
buffer = io.BytesIO()
zipf = zipfile.ZipFile(buffer, mode='w', compression=zipfile.ZIP_DEFLATED)
output_filename = os.path.splitext(name)[0] + '.' + resources['output_extension']
zipf.writestr(output_filename, cast_bytes(output, 'utf-8'))
for filename, data in output_files.items():
zipf.writestr(os.path.basename(filename), data)
zipf.close()
handler.finish(buffer.getvalue())
return True
def get_exporter(format, **kwargs):
"""get an exporter, raising appropriate errors"""
# if this fails, will raise 500
try:
from IPython.nbconvert.exporters.export import exporter_map
except ImportError as e:
raise web.HTTPError(500, "Could not import nbconvert: %s" % e)
try:
Exporter = exporter_map[format]
except KeyError:
# should this be 400?
raise web.HTTPError(404, u"No exporter for format: %s" % format)
try:
return Exporter(**kwargs)
except Exception as e:
raise web.HTTPError(500, "Could not construct Exporter: %s" % e)
class NbconvertFileHandler(IPythonHandler):
SUPPORTED_METHODS = ('GET',)
@web.authenticated
def get(self, format, path='', name=None):
exporter = get_exporter(format, config=self.config)
path = path.strip('/')
model = self.notebook_manager.get_notebook(name=name, path=path)
self.set_header('Last-Modified', model['last_modified'])
try:
output, resources = exporter.from_notebook_node(model['content'])
except Exception as e:
raise web.HTTPError(500, "nbconvert failed: %s" % e)
if respond_zip(self, name, output, resources):
return
# Force download if requested
if self.get_argument('download', 'false').lower() == 'true':
filename = os.path.splitext(name)[0] + '.' + resources['output_extension']
self.set_header('Content-Disposition',
'attachment; filename="%s"' % filename)
# MIME type
if exporter.output_mimetype:
self.set_header('Content-Type',
'%s; charset=utf-8' % exporter.output_mimetype)
self.finish(output)
class NbconvertPostHandler(IPythonHandler):
SUPPORTED_METHODS = ('POST',)
@web.authenticated
def post(self, format):
exporter = get_exporter(format, config=self.config)
model = self.get_json_body()
nbnode = to_notebook_json(model['content'])
try:
output, resources = exporter.from_notebook_node(nbnode)
except Exception as e:
raise web.HTTPError(500, "nbconvert failed: %s" % e)
if respond_zip(self, nbnode.metadata.name, output, resources):
return
# MIME type
if exporter.output_mimetype:
self.set_header('Content-Type',
'%s; charset=utf-8' % exporter.output_mimetype)
self.finish(output)
#-----------------------------------------------------------------------------
# URL to handler mappings
#-----------------------------------------------------------------------------
_format_regex = r"(?P<format>\w+)"
default_handlers = [
(r"/nbconvert/%s%s" % (_format_regex, notebook_path_regex),
NbconvertFileHandler),
(r"/nbconvert/%s" % _format_regex, NbconvertPostHandler),
]
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