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expose path tbb_browser_dir #210

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6 changes: 4 additions & 2 deletions tbselenium/common.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,10 @@
# DEFAULT TBB PATHS works for TBB versions v4.x and above
# Old TBB versions (V3.X or below) have different directory structures
DEFAULT_TBB_BROWSER_DIR = 'Browser'
DEFAULT_TBB_TORBROWSER_DIR = join('Browser', 'TorBrowser')
DEFAULT_TBB_FX_BINARY_PATH = join('Browser', 'firefox')

# all other paths are relative to DEFAULT_TBB_BROWSER_DIR
DEFAULT_TBB_TORBROWSER_DIR = 'TorBrowser'
DEFAULT_TBB_FX_BINARY_PATH = 'firefox'
DEFAULT_TOR_BINARY_DIR = join(DEFAULT_TBB_TORBROWSER_DIR, 'Tor')
DEFAULT_TOR_BINARY_PATH = join(DEFAULT_TOR_BINARY_DIR, 'tor')
DEFAULT_TBB_DATA_DIR = join(DEFAULT_TBB_TORBROWSER_DIR, 'Data')
Expand Down
134 changes: 98 additions & 36 deletions tbselenium/tbdriver.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,9 @@
import shutil
from os import environ, chdir
from os import environ
import os
from os.path import isdir, isfile, join, abspath, dirname
from time import sleep
import tempfile
from http.client import CannotSendRequest
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
Expand All @@ -19,12 +21,14 @@

DEFAULT_BANNED_PORTS = "9050,9051,9150,9151"
GECKO_DRIVER_EXE_PATH = shutil.which("geckodriver")
DEFAULT_TBB_BROWSER_DIR = ""

class TorBrowserDriver(FirefoxDriver):
"""
Extend Firefox webdriver to automate Tor Browser.
"""
def __init__(self,
tbb_browser_dir=DEFAULT_TBB_BROWSER_DIR,
tbb_path="",
tor_cfg=cm.USE_RUNNING_TOR,
tbb_fx_binary_path="",
Expand Down Expand Up @@ -52,7 +56,10 @@ def __init__(self,

self.use_custom_profile = use_custom_profile
self.tor_cfg = tor_cfg
self.setup_tbb_paths(tbb_path, tbb_fx_binary_path,

self.remove_on_exit = []

self.setup_tbb_paths(tbb_browser_dir, tbb_path, tbb_fx_binary_path,
tbb_profile_path, tor_data_dir)
self.options = Options() if options is None else options
install_noscript = False
Expand Down Expand Up @@ -100,10 +107,16 @@ def __init__(self,
if headless:
self.options.add_argument('-headless')

super(TorBrowserDriver, self).__init__(
service=tbb_service,
options=self.options,
)
# __exit__ is not called when this fails
try:
super(TorBrowserDriver, self).__init__(
service=tbb_service,
options=self.options,
)
except Exception as exc:
self.quit()
raise

self.is_running = True
self.install_extensions(extensions, install_noscript)
self.temp_profile_dir = self.capabilities["moz:profile"]
Expand All @@ -113,7 +126,7 @@ def install_extensions(self, extensions, install_noscript):
"""Install the given extensions to the profile we are launching."""
if install_noscript:
no_script_xpi = join(
self.tbb_path, cm.DEFAULT_TBB_NO_SCRIPT_XPI_PATH)
self.tbb_browser_dir, cm.DEFAULT_TBB_NO_SCRIPT_XPI_PATH)
extensions.append(no_script_xpi)

for extension in extensions:
Expand Down Expand Up @@ -147,51 +160,92 @@ def init_ports(self, tor_cfg, socks_port, control_port):
self.socks_port = socks_port
self.control_port = control_port

def setup_tbb_paths(self, tbb_path, tbb_fx_binary_path, tbb_profile_path,
tor_data_dir):
def setup_tbb_paths(self, tbb_browser_dir, tbb_path, tbb_fx_binary_path,
tbb_profile_path, tor_data_dir):
"""Update instance variables based on the passed paths.

TorBrowserDriver can be initialized by passing either
0) path to TBB browser directory (tbb_browser_dir)
1) path to TBB directory (tbb_path)
2) path to TBB directory and profile (tbb_path, tbb_profile_path)
3) path to TBB's Firefox binary and profile (tbb_fx_binary_path, tbb_profile_path)
"""
if not (tbb_path or (tbb_fx_binary_path and tbb_profile_path)):
raise TBDriverPathError("Either TBB path or Firefox profile"
" and binary path should be provided"
" %s" % tbb_path)

if tbb_path:
if not isdir(tbb_path):
raise TBDriverPathError("TBB path is not a directory %s"
% tbb_path)
tbb_fx_binary_path = join(tbb_path, cm.DEFAULT_TBB_FX_BINARY_PATH)
# all default paths are relative to tbb_browser_dir
if tbb_browser_dir:
pass
"""
if not tbb_fx_binary_path:
tbb_fx_binary_path = join(tbb_browser_dir, cm.DEFAULT_TBB_FX_BINARY_PATH)
if not tbb_profile_path:
# fall back to the default profile path in TBB
tbb_profile_path = join(tbb_browser_dir, cm.DEFAULT_TBB_PROFILE_PATH)
if not tbb_path:
tbb_path = dirname(tbb_browser_dir)
"""
elif tbb_path:
# legacy
tbb_browser_dir = join(tbb_path, cm.DEFAULT_TBB_BROWSER_DIR)

elif tbb_fx_binary_path and tbb_profile_path:
tbb_browser_dir = dirname(tbb_fx_binary_path)

else:
# based on https://github.com/webfp/tor-browser-selenium/issues/159#issue-1016463002
tbb_path = dirname(dirname(tbb_fx_binary_path))
raise TBDriverPathError("At least tbb_browser_dir or tbb_path or"
" (tbb_fx_binary_path and tbb_profile_path)"
" must be provided")

if not tbb_profile_path:
# fall back to the default profile path in TBB
tbb_profile_path = join(tbb_path, cm.DEFAULT_TBB_PROFILE_PATH)
if not isdir(tbb_browser_dir):
raise TBDriverPathError("Invalid TBB Browser dir %s"
% tbb_browser_dir)

"""
if not tbb_path:
if not isfile(tbb_fx_binary_path):
raise TBDriverPathError("Invalid Firefox binary %s"
% tbb_fx_binary_path)
# based on https://github.com/webfp/tor-browser-selenium/issues/159#issue-1016463002
if not isdir(tbb_path):
raise TBDriverPathError("Invalid TBB path directory %s" % tbb_path)
"""

if not tbb_fx_binary_path:
tbb_fx_binary_path = join(tbb_browser_dir, cm.DEFAULT_TBB_FX_BINARY_PATH)
if not isfile(tbb_fx_binary_path):
raise TBDriverPathError("Invalid Firefox binary %s"
% tbb_fx_binary_path)

if not tbb_profile_path:
# fall back to the default profile path in TBB
tbb_profile_path = join(tbb_browser_dir, cm.DEFAULT_TBB_PROFILE_PATH)
if not isdir(tbb_profile_path):
raise TBDriverPathError("Invalid Firefox profile dir %s"
% tbb_profile_path)
self.tbb_path = abspath(tbb_path)

if not tor_data_dir:
# fall back to default tor data dir in TBB
tor_data_dir = join(tbb_browser_dir, cm.DEFAULT_TOR_DATA_PATH)
# only relevant if we launch tor
# if not isdir(tor_data_dir):
# raise TBDriverPathError("Invalid Tor data directory %s" % tor_data_dir)

# tbb_browser_dir must be writable, but its contents can be read-only
# fix: Your Tor Browser profile cannot be loaded. It may be missing or inaccessible.
if not os.access(tbb_browser_dir, os.W_OK):
temp_tbb_browser_dir = tempfile.mkdtemp(prefix="tbselenium-tbb_browser_dir-")
# print(f"not writable tbb_browser_dir {tbb_browser_dir} - using tempdir {temp_tbb_browser_dir}")
self.remove_on_exit.append(temp_tbb_browser_dir)
# symlink the contents of tbb_browser_dir
for name in os.listdir(tbb_browser_dir):
src = tbb_browser_dir + "/" + name
dst = temp_tbb_browser_dir + "/" + name
os.symlink(src, dst, target_is_directory=os.path.isdir(src))
tbb_browser_dir = temp_tbb_browser_dir

#self.tbb_path = abspath(tbb_path)
self.tbb_browser_dir = abspath(tbb_browser_dir)
self.tbb_profile_path = abspath(tbb_profile_path)
self.tbb_fx_binary_path = abspath(tbb_fx_binary_path)
self.tbb_browser_dir = abspath(join(tbb_path,
cm.DEFAULT_TBB_BROWSER_DIR))
if tor_data_dir:
self.tor_data_dir = tor_data_dir # only relevant if we launch tor
else:
# fall back to default tor data dir in TBB
self.tor_data_dir = join(tbb_path, cm.DEFAULT_TOR_DATA_PATH)
# TB can't find bundled "fonts" if we don't switch to tbb_browser_dir
chdir(self.tbb_browser_dir)
self.tor_data_dir = abspath(tor_data_dir)

def load_url(self, url, wait_on_page=0, wait_for_page_body=False):
"""Load a URL and wait before returning.
Expand Down Expand Up @@ -299,9 +353,9 @@ def export_env_vars(self):

We follow start-tor-browser script.
"""
tor_binary_dir = join(self.tbb_path, cm.DEFAULT_TOR_BINARY_DIR)
tor_binary_dir = join(self.tbb_browser_dir, cm.DEFAULT_TOR_BINARY_DIR)
environ["LD_LIBRARY_PATH"] = tor_binary_dir
environ["FONTCONFIG_PATH"] = join(self.tbb_path,
environ["FONTCONFIG_PATH"] = join(self.tbb_browser_dir,
cm.DEFAULT_FONTCONFIG_PATH)
environ["FONTCONFIG_FILE"] = cm.FONTCONFIG_FILE
environ["HOME"] = self.tbb_browser_dir
Expand Down Expand Up @@ -345,6 +399,14 @@ def quit(self):
self.clean_up_profile_dirs()
except Exception as e:
print("[tbselenium] Exception while quitting: %s" % e)
for path in self.remove_on_exit:
# todo: log.debug
# print(f"tbdriver __exit__ removing {path}")
try:
shutil.rmtree(path)
except Exception as exc:
# todo: log error?
pass

def __enter__(self):
return self
Expand Down