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apprise/test/test_attach_http.py

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# -*- coding: utf-8 -*-
# BSD 2-Clause License
#
# Apprise - Push Notification Library.
# Copyright (c) 2024, Chris Caron <lead2gold@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
import re
from unittest import mock
import requests
import mimetypes
from os.path import join
from os.path import dirname
from os.path import getsize
from apprise.attachment.http import AttachHTTP
from apprise import Apprise, AppriseAttachment
from apprise import NotificationManager
from apprise.plugins import NotifyBase
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')
# Grant access to our Notification Manager Singleton
N_MGR = NotificationManager()
# 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.post')
@mock.patch('requests.get')
def test_attach_http(mock_get, mock_post):
"""
API: AttachHTTP() object
"""
# Define our good:// url
class GoodNotification(NotifyBase):
def __init__(self, *args, **kwargs):
super().__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
N_MGR['good'] = GoodNotification
# Temporary path
path = join(TEST_VAR_DIR, 'apprise-test.gif')
class DummyResponse:
"""
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(), str) 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']
with mock.patch('os.unlink', side_effect=OSError()):
# Test invalidation with exception thrown
attachment.invalidate()
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(), str) 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(), str) is True
# both mime and name over-ridden
assert re.search(r'[?&]mime=image/jpeg', 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(), str) 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(), str) 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(), str) 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(), str) 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(), str) 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(), str) 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(), str) 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(), str) 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
# Multi Message Testing
mock_get.side_effect = None
mock_get.return_value = DummyResponse()
# Prepare our POST response (from notify call)
response = requests.Request()
response.status_code = requests.codes.ok
response.content = ""
mock_post.return_value = response
mock_get.reset_mock()
mock_post.reset_mock()
assert mock_get.call_count == 0
apobj = Apprise()
assert apobj.add('form://localhost')
assert apobj.add('json://localhost')
assert apobj.add('xml://localhost')
assert len(apobj) == 3
assert apobj.notify(
body='one attachment split 3 times',
attach="http://localhost/test.gif",
) is True
# We posted 3 times
assert mock_post.call_count == 3
# We only fetched once and re-used the same fetch for all posts
assert mock_get.call_count == 1
mock_get.reset_mock()
mock_post.reset_mock()
apobj = Apprise()
for n in range(10):
assert apobj.add(f'json://localhost?:entry={n}&method=post')
assert apobj.add(f'form://localhost?:entry={n}&method=post')
assert apobj.add(f'xml://localhost?:entry={n}&method=post')
assert apobj.notify(
body='one attachment split 30 times',
attach="http://localhost/test.gif",
) is True
# We posted 30 times
assert mock_post.call_count == 30
# We only fetched once and re-used the same fetch for all posts
assert mock_get.call_count == 1
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