mirror of https://github.com/zulip/zulip.git
102 lines
4.2 KiB
Python
102 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import absolute_import
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from django.http import HttpRequest, HttpResponse, HttpResponseForbidden, FileResponse, \
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HttpResponseNotFound
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from django.shortcuts import redirect
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from django.utils.translation import ugettext as _
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from zerver.decorator import authenticated_json_post_view, zulip_login_required
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from zerver.lib.request import has_request_variables, REQ
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from zerver.lib.response import json_success, json_error
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from zerver.lib.upload import upload_message_image_from_request, get_local_file_path, \
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get_signed_upload_url, get_realm_for_filename
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from zerver.lib.validator import check_bool
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from zerver.models import UserProfile
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from django.conf import settings
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def serve_s3(request, user_profile, realm_id_str, filename):
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# type: (HttpRequest, UserProfile, str, str) -> HttpResponse
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url_path = "%s/%s" % (realm_id_str, filename)
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if realm_id_str == "unk":
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realm_id = get_realm_for_filename(url_path)
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if realm_id is None:
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# File does not exist
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return HttpResponseNotFound('<p>File not found</p>')
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else:
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realm_id = int(realm_id_str)
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# Internal users can access all uploads so we can receive attachments in cross-realm messages
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if user_profile.realm_id == realm_id or user_profile.realm.domain == 'zulip.com':
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uri = get_signed_upload_url(url_path)
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return redirect(uri)
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else:
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return HttpResponseForbidden()
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# TODO: Rewrite this once we have django-sendfile
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def serve_local(request, path_id):
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# type: (HttpRequest, str) -> HttpResponse
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import os
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import mimetypes
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local_path = get_local_file_path(path_id)
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if local_path is None:
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return HttpResponseNotFound('<p>File not found</p>')
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filename = os.path.basename(local_path)
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response = FileResponse(open(local_path, 'rb'),
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content_type = mimetypes.guess_type(filename)) # type: ignore # https://github.com/python/typeshed/issues/559
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return response
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@has_request_variables
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def serve_file_backend(request, user_profile, realm_id_str, filename):
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# type: (HttpRequest, UserProfile, str, str) -> HttpResponse
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path_id = "%s/%s" % (realm_id_str, filename)
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if settings.LOCAL_UPLOADS_DIR is not None:
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return serve_local(request, path_id)
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return serve_s3(request, user_profile, realm_id_str, filename)
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@authenticated_json_post_view
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def json_upload_file(request, user_profile):
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# type: (HttpRequest, UserProfile) -> HttpResponse
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return upload_file_backend(request, user_profile)
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def upload_file_backend(request, user_profile):
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# type: (HttpRequest, UserProfile) -> HttpResponse
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if len(request.FILES) == 0:
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return json_error(_("You must specify a file to upload"))
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if len(request.FILES) != 1:
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return json_error(_("You may only upload one file at a time"))
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user_file = list(request.FILES.values())[0]
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if ((settings.MAX_FILE_UPLOAD_SIZE * 1024 * 1024) < user_file._get_size()):
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return json_error(_("File Upload is larger than allowed limit"))
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if not isinstance(user_file.name, str):
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# It seems that in Python 2 unicode strings containing bytes are
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# rendered differently than ascii strings containing same bytes.
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#
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# Example:
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# >>> print('\xd3\x92')
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# Ӓ
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# >>> print(u'\xd3\x92')
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# Ó
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#
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# This is the cause of the problem as user_file.name variable
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# is received as a unicode which is converted into unicode
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# strings containing bytes and is rendered incorrectly.
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#
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# Example:
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# >>> from six.moves import urllib
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# >>> name = u'%D0%97%D0%B4%D1%80%D0%B0%D0%B2%D0%B5%D0%B8%CC%86%D1%82%D0%B5.txt'
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# >>> print(urllib.parse.unquote(name))
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# ÐдÑавеиÌÑе # This is wrong
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#
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# >>> name = '%D0%97%D0%B4%D1%80%D0%B0%D0%B2%D0%B5%D0%B8%CC%86%D1%82%D0%B5.txt'
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# >>> print(urllib.parse.unquote(name))
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# Здравейте.txt # This is correct
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user_file.name = user_file.name.encode('ascii')
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uri = upload_message_image_from_request(request, user_file, user_profile)
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return json_success({'uri': uri})
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