# SPDX-License-Identifier: GPL-3.0-or-later
"""
Making temporary WebExtensions for use in the test suite
"""
# This file is part of Haketilo.
#
# Copyright (C) 2021, 2022 Wojtek Kosior <koszko@koszko.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
# I, Wojtek Kosior, thereby promise not to sue for violation of this file's
# license. Although I request that you do not make use of this code in a
# proprietary program, I am not going to enforce this in court.
import json
import zipfile
import re
import shutil
import subprocess
from pathlib import Path
from uuid import uuid4
from tempfile import TemporaryDirectory
from selenium.webdriver.support.ui import WebDriverWait
from selenium.common.exceptions import NoSuchElementException
from .misc_constants import *
class ManifestTemplateValueToFill:
pass
def manifest_template():
return {
'manifest_version': 2,
'name': 'Haketilo test extension',
'version': '1.0',
'applications': {
'gecko': {
'id': ManifestTemplateValueToFill(),
'strict_min_version': '60.0'
}
},
'permissions': [
'contextMenus',
'webRequest',
'webRequestBlocking',
'activeTab',
'notifications',
'sessions',
'storage',
'tabs',
'<all_urls>',
'unlimitedStorage'
],
'content_security_policy': "object-src 'none'; script-src 'self' https://serve.scrip.ts;",
'web_accessible_resources': ['testpage.html'],
'options_ui': {
'page': 'testpage.html',
'open_in_tab': True
},
'background': {
'persistent': True,
'scripts': ['__open_test_page.js', 'background.js']
},
'content_scripts': [
{
'run_at': 'document_start',
'matches': ['<all_urls>'],
'match_about_blank': True,
'all_frames': True,
'js': ['content.js']
}
]
}
class ExtraHTML:
def __init__(self, html_path, append={}, wrap_into_htmldoc=True):
self.html_path = html_path
self.append = append
self.wrap_into_htmldoc = wrap_into_htmldoc
def add_to_xpi(self, xpi, tmpdir=None):
if tmpdir is None:
with TemporaryDirectory() as tmpdir:
return self.add_to_xpi(xpi, tmpdir)
append_flags = []
for filename, code in self.append.items():
append_flags.extend(['-A', f'{filename}:{code}'])
awk = subprocess.run(
['awk', '-f', awk_script_name, '--', *unit_test_defines,
*append_flags, '-H', self.html_path, '--write-js-deps',
'--output=files-to-copy', f'--output-dir={tmpdir}'],
stdout=subprocess.PIPE, cwd=proj_root, check=True
)
for path in filter(None, awk.stdout.decode().split('\n')):
xpi.write(proj_root / path, path)
tmpdir = Path(tmpdir)
for path in tmpdir.rglob('*'):
relpath = str(path.relative_to(tmpdir))
if not path.is_dir() and relpath != self.html_path:
xpi.write(path, relpath)
with open(tmpdir / self.html_path, 'rt') as html_file:
html = html_file.read()
if self.wrap_into_htmldoc:
html = f'<!DOCTYPE html><html><body>{html}</body></html>'
xpi.writestr(self.html_path, html)
default_background_script = ''
default_content_script = ''
default_test_page = '''
<!DOCTYPE html>
<html>
<head>
<title>Extension's options page for testing</title>
</head>
<body>
<h1>Extension's options page for testing</h1>
</body>
</html>
'''
open_test_page_script = '''(() => {
const page_url = browser.runtime.getURL("testpage.html");
const execute_details = {
code: `window.wrappedJSObject.ext_page_url=${JSON.stringify(page_url)};`
};
browser.tabs.query({currentWindow: true, active: true})
.then(t => browser.tabs.executeScript(t.id, execute_details));
})();'''
def make_extension(destination_dir,
background_script=default_background_script,
content_script=default_content_script,
test_page=default_test_page,
extra_files={}, extra_html=[]):
if not hasattr(extra_html, '__iter__'):
extra_html = [extra_html]
manifest = manifest_template()
extension_id = '{%s}' % uuid4()
manifest['applications']['gecko']['id'] = extension_id
files = {
'manifest.json' : json.dumps(manifest),
'__open_test_page.js': open_test_page_script,
'background.js' : background_script,
'content.js' : content_script,
'testpage.html' : test_page,
**extra_files
}
destination_path = destination_dir / f'{extension_id}.xpi'
with zipfile.ZipFile(destination_path, 'x') as xpi:
for filename, contents in files.items():
if hasattr(contents, '__call__'):
contents = contents()
xpi.writestr(filename, contents)
for html in extra_html:
html.add_to_xpi(xpi)
return destination_path
extract_base_url_re = re.compile(r'^(.*)manifest.json$')
def get_extension_base_url(driver):
"""
Extension's internall UUID is not directly exposed in Selenium. Instead, we
can navigate to about:debugging and inspect the manifest URL present there
to get the base url like:
moz-extension://b225c78f-d108-4caa-8406-f38b37d8dee5/
which can then be used to navigate to extension-bundled pages.
"""
# For newer Firefoxes
driver.get('about:debugging#/runtime/this-firefox')
def get_manifest_link_newer_ff(driver):
try:
return driver.find_element_by_class_name('qa-manifest-url')
except NoSuchElementException:
pass
try:
details = driver.find_element_by_class_name('error-page-details')
except NoSuchElementException:
return False
if '#/runtime/this-firefox' in details.text:
return "not_newer_ff"
manifest_link = WebDriverWait(driver, 10).until(get_manifest_link_newer_ff)
if manifest_link == "not_newer_ff":
driver.get("about:debugging#addons")
driver.implicitly_wait(10)
manifest_link = driver.find_element_by_class_name('manifest-url')
driver.implicitly_wait(0)
manifest_url = manifest_link.get_attribute('href')
return extract_base_url_re.match(manifest_url).group(1)
