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apprise/test/test_attach_http.py

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# -*- coding: utf-8 -*-
#
# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
# All rights reserved.
#
# This code is licensed under the MIT License.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files(the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions :
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import re
import six
import mock
import requests
import mimetypes
from os.path import join
from os.path import dirname
from os.path import getsize
from apprise.attachment.AttachHTTP import AttachHTTP
from apprise import AppriseAttachment
from apprise.plugins.NotifyBase import NotifyBase
from apprise.plugins import SCHEMA_MAP
from apprise.common import ContentLocation
# Disable logging for a cleaner testing output
import logging
logging.disable(logging.CRITICAL)
TEST_VAR_DIR = join(dirname(__file__), 'var')
# Some exception handling we'll use
REQUEST_EXCEPTIONS = (
requests.ConnectionError(
0, 'requests.ConnectionError() not handled'),
requests.RequestException(
0, 'requests.RequestException() not handled'),
requests.HTTPError(
0, 'requests.HTTPError() not handled'),
requests.ReadTimeout(
0, 'requests.ReadTimeout() not handled'),
requests.TooManyRedirects(
0, 'requests.TooManyRedirects() not handled'),
# Throw OSError exceptions too
OSError("SystemError")
)
def test_attach_http_parse_url():
"""
API: AttachHTTP().parse_url()
"""
# bad entry
assert AttachHTTP.parse_url('garbage://') is None
# no url specified
assert AttachHTTP.parse_url('http://') is None
def test_attach_http_query_string_dictionary():
"""
API: AttachHTTP() Query String Dictionary
"""
# no qsd specified
results = AttachHTTP.parse_url('http://localhost')
assert isinstance(results, dict)
# Create our object
obj = AttachHTTP(**results)
assert isinstance(obj, AttachHTTP)
assert re.search(r'[?&]verify=yes', obj.url())
# Now lets create a URL with a custom Query String entry
# some custom qsd entries specified
results = AttachHTTP.parse_url('http://localhost?dl=1&_var=test')
assert isinstance(results, dict)
# Create our object
obj = AttachHTTP(**results)
assert isinstance(obj, AttachHTTP)
assert re.search(r'[?&]verify=yes', obj.url())
# But now test that our custom arguments have also been set
assert re.search(r'[?&]dl=1', obj.url())
assert re.search(r'[?&]_var=test', obj.url())
@mock.patch('requests.get')
def test_attach_http(mock_get):
"""
API: AttachHTTP() object
"""
# Define our good:// url
class GoodNotification(NotifyBase):
def __init__(self, *args, **kwargs):
super(GoodNotification, self).__init__(*args, **kwargs)
def notify(self, *args, **kwargs):
# Pretend everything is okay
return True
def url(self):
# Support url() function
return ''
# Store our good notification in our schema map
SCHEMA_MAP['good'] = GoodNotification
# Temporary path
path = join(TEST_VAR_DIR, 'apprise-test.gif')
class DummyResponse(object):
"""
A dummy response used to manage our object
"""
status_code = requests.codes.ok
headers = {
'Content-Length': getsize(path),
'Content-Type': 'image/gif',
}
# Pointer to file
ptr = None
# used to return random keep-alive chunks
_keepalive_chunk_ref = 0
def close(self):
return
def iter_content(self, chunk_size=1024):
"""Lazy function (generator) to read a file piece by piece.
Default chunk size: 1k."""
while True:
self._keepalive_chunk_ref += 1
if 16 % self._keepalive_chunk_ref == 0:
# Yield a keep-alive block
yield ''
data = self.ptr.read(chunk_size)
if not data:
break
yield data
def raise_for_status(self):
return
def __enter__(self):
self.ptr = open(path, 'rb')
return self
def __exit__(self, *args, **kwargs):
self.ptr.close()
# Prepare Mock
dummy_response = DummyResponse()
mock_get.return_value = dummy_response
# Test custom url get parameters
results = AttachHTTP.parse_url(
'http://user:pass@localhost/apprise.gif?dl=1&cache=300')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# Test that our extended variables are passed along
assert mock_get.call_count == 0
assert attachment
assert mock_get.call_count == 1
assert 'params' in mock_get.call_args_list[0][1]
assert 'dl' in mock_get.call_args_list[0][1]['params']
# Verify that arguments that are reserved for apprise are not
# passed along
assert 'cache' not in mock_get.call_args_list[0][1]['params']
results = AttachHTTP.parse_url(
'http://user:pass@localhost/apprise.gif?+key=value&cache=True')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
# No Content-Disposition; so we use filename from path
assert attachment.name == 'apprise.gif'
assert attachment.mimetype == 'image/gif'
results = AttachHTTP.parse_url(
'http://localhost:3000/noname.gif?name=usethis.jpg&mime=image/jpeg')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# both mime and name over-ridden
assert re.search(r'[?&]mime=image%2Fjpeg', attachment.url())
assert re.search(r'[?&]name=usethis.jpg', attachment.url())
# No Content-Disposition; so we use filename from path
assert attachment.name == 'usethis.jpg'
assert attachment.mimetype == 'image/jpeg'
# Edge case; download called a second time when content already retrieved
assert attachment.download()
assert attachment
assert len(attachment) == getsize(path)
# Test case where location is simply set to INACCESSIBLE
# Below is a bad example, but it proves the section of code properly works.
# Ideally a server admin may wish to just disable all HTTP based
# attachments entirely. In this case, they simply just need to change the
# global singleton at the start of their program like:
#
# import apprise
# apprise.attachment.AttachHTTP.location = \
# apprise.ContentLocation.INACCESSIBLE
attachment = AttachHTTP(**results)
attachment.location = ContentLocation.INACCESSIBLE
assert attachment.path is None
# Downloads just don't work period
assert attachment.download() is False
# No path specified
# No Content-Disposition specified
# No filename (because no path)
results = AttachHTTP.parse_url('http://localhost')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
assert attachment.mimetype == 'image/gif'
# Because we could determine our mime type, we could build an extension
# for our unknown filename
assert attachment.name == '{}{}'.format(
AttachHTTP.unknown_filename,
mimetypes.guess_extension(attachment.mimetype)
)
assert attachment
assert len(attachment) == getsize(path)
# Set Content-Length to a value that exceeds our maximum allowable
dummy_response.headers['Content-Length'] = AttachHTTP.max_file_size + 1
results = AttachHTTP.parse_url('http://localhost/toobig.jpg')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
# we can not download this attachment
assert not attachment
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
assert attachment.mimetype is None
assert attachment.name is None
assert len(attachment) == 0
# Handle cases where we have no Content-Length and we need to rely
# on what is read as it is streamed
del dummy_response.headers['Content-Length']
# No path specified
# No Content-Disposition specified
# No Content-Length specified
# No filename (because no path)
results = AttachHTTP.parse_url('http://localhost/no-length.gif')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
assert attachment.mimetype == 'image/gif'
# Because we could determine our mime type, we could build an extension
# for our unknown filename
assert attachment.name == 'no-length.gif'
assert attachment
assert len(attachment) == getsize(path)
# Set our limit to be the length of our image; everything should work
# without a problem
max_file_size = AttachHTTP.max_file_size
AttachHTTP.max_file_size = getsize(path)
# Set ourselves a Content-Disposition (providing a filename)
dummy_response.headers['Content-Disposition'] = \
'attachment; filename="myimage.gif"'
# Remove our content type so we're forced to guess it from our filename
# specified in our Content-Disposition
del dummy_response.headers['Content-Type']
# No path specified
# No Content-Length specified
# Filename in Content-Disposition (over-rides one found in path
results = AttachHTTP.parse_url('http://user@localhost/ignore-filename.gif')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
assert attachment.mimetype == 'image/gif'
# Because we could determine our mime type, we could build an extension
# for our unknown filename
assert attachment.name == 'myimage.gif'
assert attachment
assert len(attachment) == getsize(path)
# Similar to test above except we make our max message size just 1 byte
# smaller then our gif file. This will cause us to fail to read the
# attachment
AttachHTTP.max_file_size = getsize(path) - 1
results = AttachHTTP.parse_url('http://localhost/toobig.jpg')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
# we can not download this attachment
assert not attachment
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
assert attachment.mimetype is None
assert attachment.name is None
assert len(attachment) == 0
# Disable our file size limitations
AttachHTTP.max_file_size = 0
results = AttachHTTP.parse_url('http://user@localhost')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
assert attachment.mimetype == 'image/gif'
# Because we could determine our mime type, we could build an extension
# for our unknown filename
assert attachment.name == 'myimage.gif'
assert attachment
assert len(attachment) == getsize(path)
# Set our header up with an invalid Content-Length; we can still process
# this data. It just means we track it lower when reading back content
dummy_response.headers = {
'Content-Length': 'invalid'
}
results = AttachHTTP.parse_url('http://localhost/invalid-length.gif')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
assert attachment.mimetype == 'image/gif'
# Because we could determine our mime type, we could build an extension
# for our unknown filename
assert attachment.name == 'invalid-length.gif'
assert attachment
# Give ourselves nothing to work with
dummy_response.headers = {}
results = AttachHTTP.parse_url('http://user@localhost')
assert isinstance(results, dict)
attachment = AttachHTTP(**results)
# we can not download this attachment
assert attachment
assert isinstance(attachment.url(), six.string_types) is True
# No mime-type and/or filename over-ride was specified, so therefore it
# won't show up in the generated URL
assert re.search(r'[?&]mime=', attachment.url()) is None
assert re.search(r'[?&]name=', attachment.url()) is None
# Handle edge-case where detected_name is None for whatever reason
attachment.detected_name = None
assert attachment.mimetype == attachment.unknown_mimetype
assert attachment.name.startswith(AttachHTTP.unknown_filename)
assert len(attachment) == getsize(path)
# Exception handling
mock_get.return_value = None
for _exception in REQUEST_EXCEPTIONS:
aa = AppriseAttachment.instantiate(
'http://localhost/exception.gif?cache=30')
assert isinstance(aa, AttachHTTP)
mock_get.side_effect = _exception
assert not aa
# Restore value
AttachHTTP.max_file_size = max_file_size