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