apprise/test/test_attach_memory.py

# -*- 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
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import re
import urllib
import pytest

from apprise.attachment.base import AttachBase
from apprise.attachment.memory import AttachMemory
from apprise import AppriseAttachment
from apprise.common import ContentLocation

# Disable logging for a cleaner testing output
import logging
logging.disable(logging.CRITICAL)


def test_attach_memory_parse_url():
    """
    API: AttachMemory().parse_url()

    """

    # Bad Entry
    assert AttachMemory.parse_url(object) is None

    # Our filename is detected automatically
    assert AttachMemory.parse_url('memory://')

    # pass our content in as a string
    mem = AttachMemory(content='string')
    # it loads a string type by default
    mem.mimetype == 'text/plain'
    # Our filename is automatically generated (with .txt)
    assert re.match(r'^[a-z0-9-]+\.txt$', mem.name, re.I)

    # open our file
    with mem as fp:
        assert fp.getbuffer().nbytes == len(mem)

    # pass our content in as a string
    mem = AttachMemory(
        content='<html/>', name='test.html', mimetype='text/html')
    # it loads a string type by default
    mem.mimetype == 'text/html'
    mem.name == 'test.html'

    # Stub function
    assert mem.download()

    with pytest.raises(TypeError):
        # garbage in, garbage out
        AttachMemory(content=3)

    # pointer to our data
    pointer = mem.open()
    assert pointer.read() == b'<html/>'

    # pass our content in as a string
    mem = AttachMemory(content=b'binary-data', name='raw.dat')
    # it loads a string type by default
    assert mem.mimetype == 'application/octet-stream'
    mem.name == 'raw'

    # pass our content in as a string
    mem = AttachMemory(content=b'binary-data')
    # it loads a string type by default
    assert mem.mimetype == 'application/octet-stream'
    # Our filename is automatically generated (with .dat)
    assert re.match(r'^[a-z0-9-]+\.dat$', mem.name, re.I)


def test_attach_memory():
    """
    API: AttachMemory()

    """
    # A url we can test with
    fname = 'testfile'
    url = 'memory:///ignored/path/{fname}'.format(fname=fname)

    # Simple gif test
    response = AppriseAttachment.instantiate(url)
    assert isinstance(response, AttachMemory)

    # There is no path yet as we haven't written anything to our memory object
    # yet
    assert response.path is None
    assert bool(response) is False

    with response as memobj:
        memobj.write(b'content')

    # Memory object defaults
    assert response.name == fname
    assert response.path == response.name
    assert response.mimetype == 'application/octet-stream'
    assert bool(response) is True

    #
    fname_in_url = urllib.parse.quote(response.name)
    assert response.url().startswith('memory://{}'.format(fname_in_url))

    # Mime is always part of url
    assert re.search(r'[?&]mime=', response.url()) is not None

    # 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 File 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.AttachMemory.location = \
    #       apprise.ContentLocation.INACCESSIBLE
    #
    response = AppriseAttachment.instantiate(url)
    assert isinstance(response, AttachMemory)
    with response as memobj:
        memobj.write(b'content')

    response.location = ContentLocation.INACCESSIBLE
    assert response.path is None
    # Downloads just don't work period
    assert response.download() is False

    # File handling (even if image is set to maxium allowable)
    response = AppriseAttachment.instantiate(url)
    assert isinstance(response, AttachMemory)
    with response as memobj:
        memobj.write(b'content')

    # Memory handling when size is to large
    response = AppriseAttachment.instantiate(url)
    assert isinstance(response, AttachMemory)
    with response as memobj:
        memobj.write(b'content')

    # Test case where we exceed our defined max_file_size in memory
    prev_value = AttachBase.max_file_size
    AttachBase.max_file_size = len(response) - 1
    # We can't work in this case
    assert response.path is None
    assert response.download() is False

    # Restore our file_size
    AttachBase.max_file_size = prev_value

    response = AppriseAttachment.instantiate(
        'memory://apprise-file.gif?mime=image/gif')
    assert isinstance(response, AttachMemory)
    with response as memobj:
        memobj.write(b'content')

    assert response.name == 'apprise-file.gif'
    assert response.path == response.name
    assert response.mimetype == 'image/gif'
    # 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=', response.url()) is not None
    assert 'image/gif' in response.url()

    # Force a mime-type and new name
    response = AppriseAttachment.instantiate(
        'memory://{}?mime={}&name={}'.format(
            'ignored.gif', 'image/jpeg', 'test.jpeg'))
    assert isinstance(response, AttachMemory)
    with response as memobj:
        memobj.write(b'content')

    assert response.name == 'test.jpeg'
    assert response.path == response.name
    assert response.mimetype == 'image/jpeg'
    # We will match on mime type now  (%2F = /)
    assert re.search(r'[?&]mime=image/jpeg', response.url(), re.I)
    assert response.url().startswith('memory://test.jpeg')

    # Test hosted configuration and that we can't add a valid memory file
    aa = AppriseAttachment(location=ContentLocation.HOSTED)
    assert aa.add(response) is False