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Python

# Licensed to the Software Freedom Conservancy (SFC) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The SFC licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import base64
import os
import warnings
import zipfile
from contextlib import contextmanager
from io import BytesIO
from shutil import rmtree
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from selenium.webdriver.remote.webdriver import WebDriver as RemoteWebDriver
from .firefox_binary import FirefoxBinary
from .firefox_profile import FirefoxProfile
from .options import Options
from .remote_connection import FirefoxRemoteConnection
from .service import DEFAULT_EXECUTABLE_PATH
from .service import Service
# Default for log_path variable. To be deleted when deprecations for arguments are removed.
DEFAULT_LOG_PATH = None
DEFAULT_SERVICE_LOG_PATH = "geckodriver.log"
class WebDriver(RemoteWebDriver):
CONTEXT_CHROME = "chrome"
CONTEXT_CONTENT = "content"
def __init__(
self,
firefox_profile=None,
firefox_binary=None,
capabilities=None,
proxy=None,
executable_path=DEFAULT_EXECUTABLE_PATH,
options=None,
service_log_path=DEFAULT_SERVICE_LOG_PATH,
service_args=None,
service=None,
desired_capabilities=None,
log_path=DEFAULT_LOG_PATH,
keep_alive=True,
):
"""Starts a new local session of Firefox.
Based on the combination and specificity of the various keyword
arguments, a capabilities dictionary will be constructed that
is passed to the remote end.
The keyword arguments given to this constructor are helpers to
more easily allow Firefox WebDriver sessions to be customised
with different options. They are mapped on to a capabilities
dictionary that is passed on to the remote end.
As some of the options, such as `firefox_profile` and
`options.profile` are mutually exclusive, precedence is
given from how specific the setting is. `capabilities` is the
least specific keyword argument, followed by `options`,
followed by `firefox_binary` and `firefox_profile`.
In practice this means that if `firefox_profile` and
`options.profile` are both set, the selected profile
instance will always come from the most specific variable.
In this case that would be `firefox_profile`. This will result in
`options.profile` to be ignored because it is considered
a less specific setting than the top-level `firefox_profile`
keyword argument. Similarly, if you had specified a
`capabilities["moz:firefoxOptions"]["profile"]` Base64 string,
this would rank below `options.profile`.
:param firefox_profile: Deprecated: Instance of ``FirefoxProfile`` object
or a string. If undefined, a fresh profile will be created
in a temporary location on the system.
:param firefox_binary: Deprecated: Instance of ``FirefoxBinary`` or full
path to the Firefox binary. If undefined, the system default
Firefox installation will be used.
:param capabilities: Deprecated: Dictionary of desired capabilities.
:param proxy: Deprecated: The proxy settings to use when communicating with
Firefox via the extension connection.
:param executable_path: Deprecated: Full path to override which geckodriver
binary to use for Firefox 47.0.1 and greater, which
defaults to picking up the binary from the system path.
:param options: Instance of ``options.Options``.
:param service: (Optional) service instance for managing the starting and stopping of the driver.
:param service_log_path: Deprecated: Where to log information from the driver.
:param service_args: Deprecated: List of args to pass to the driver service
:param desired_capabilities: Deprecated: alias of capabilities. In future
versions of this library, this will replace 'capabilities'.
This will make the signature consistent with RemoteWebDriver.
:param keep_alive: Whether to configure remote_connection.RemoteConnection to use
HTTP keep-alive.
"""
if executable_path != DEFAULT_EXECUTABLE_PATH:
warnings.warn(
"executable_path has been deprecated, please pass in a Service object", DeprecationWarning, stacklevel=2
)
if capabilities or desired_capabilities:
warnings.warn(
"capabilities and desired_capabilities have been deprecated, please pass in a Service object",
DeprecationWarning,
stacklevel=2,
)
if firefox_binary:
warnings.warn(
"firefox_binary has been deprecated, please pass in a Service object", DeprecationWarning, stacklevel=2
)
self.binary = None
if firefox_profile:
warnings.warn(
"firefox_profile has been deprecated, please pass in an Options object",
DeprecationWarning,
stacklevel=2,
)
self.profile = None
if log_path != DEFAULT_LOG_PATH:
warnings.warn(
"log_path has been deprecated, please pass in a Service object", DeprecationWarning, stacklevel=2
)
# Service Arguments being deprecated.
if service_log_path != DEFAULT_SERVICE_LOG_PATH:
warnings.warn(
"service_log_path has been deprecated, please pass in a Service object",
DeprecationWarning,
stacklevel=2,
)
if service_args:
warnings.warn(
"service_args has been deprecated, please pass in a Service object", DeprecationWarning, stacklevel=2
)
self.service = service
# If desired capabilities is set, alias it to capabilities.
# If both are set ignore desired capabilities.
if not capabilities and desired_capabilities:
capabilities = desired_capabilities
if not capabilities:
capabilities = DesiredCapabilities.FIREFOX.copy()
if not options:
options = Options()
capabilities = dict(capabilities)
if capabilities.get("binary"):
options.binary = capabilities["binary"]
# options overrides capabilities
if options:
if options.binary:
self.binary = options.binary
if options.profile:
self.profile = options.profile
# firefox_binary and firefox_profile
# override options
if firefox_binary:
if isinstance(firefox_binary, str):
firefox_binary = FirefoxBinary(firefox_binary)
self.binary = firefox_binary
options.binary = firefox_binary
if firefox_profile:
if isinstance(firefox_profile, str):
firefox_profile = FirefoxProfile(firefox_profile)
self.profile = firefox_profile
options.profile = firefox_profile
if not capabilities.get("acceptInsecureCerts") or not options.accept_insecure_certs:
options.accept_insecure_certs = False
if not self.service:
self.service = Service(executable_path, service_args=service_args, log_path=service_log_path)
self.service.start()
executor = FirefoxRemoteConnection(
remote_server_addr=self.service.service_url, ignore_proxy=options._ignore_local_proxy
)
super().__init__(command_executor=executor, options=options, keep_alive=True)
self._is_remote = False
def quit(self) -> None:
"""Quits the driver and close every associated window."""
try:
super().quit()
except Exception:
# We don't care about the message because something probably has gone wrong
pass
self.service.stop()
if self.profile:
try:
rmtree(self.profile.path)
if self.profile.tempfolder:
rmtree(self.profile.tempfolder)
except Exception as e:
print(str(e))
@property
def firefox_profile(self):
return self.profile
# Extension commands:
def set_context(self, context) -> None:
self.execute("SET_CONTEXT", {"context": context})
@contextmanager
def context(self, context):
"""Sets the context that Selenium commands are running in using
a `with` statement. The state of the context on the server is
saved before entering the block, and restored upon exiting it.
:param context: Context, may be one of the class properties
`CONTEXT_CHROME` or `CONTEXT_CONTENT`.
Usage example::
with selenium.context(selenium.CONTEXT_CHROME):
# chrome scope
... do stuff ...
"""
initial_context = self.execute("GET_CONTEXT").pop("value")
self.set_context(context)
try:
yield
finally:
self.set_context(initial_context)
def install_addon(self, path, temporary=False) -> str:
"""
Installs Firefox addon.
Returns identifier of installed addon. This identifier can later
be used to uninstall addon.
:param path: Absolute path to the addon that will be installed.
:Usage:
::
driver.install_addon('/path/to/firebug.xpi')
"""
if os.path.isdir(path):
fp = BytesIO()
path_root = len(path) + 1 # account for trailing slash
with zipfile.ZipFile(fp, "w", zipfile.ZIP_DEFLATED) as zipped:
for base, dirs, files in os.walk(path):
for fyle in files:
filename = os.path.join(base, fyle)
zipped.write(filename, filename[path_root:])
addon = base64.b64encode(fp.getvalue()).decode("UTF-8")
else:
with open(path, "rb") as file:
addon = base64.b64encode(file.read()).decode("UTF-8")
payload = {"addon": addon, "temporary": temporary}
return self.execute("INSTALL_ADDON", payload)["value"]
def uninstall_addon(self, identifier) -> None:
"""
Uninstalls Firefox addon using its identifier.
:Usage:
::
driver.uninstall_addon('addon@foo.com')
"""
self.execute("UNINSTALL_ADDON", {"id": identifier})
def get_full_page_screenshot_as_file(self, filename) -> bool:
"""
Saves a full document screenshot of the current window to a PNG image file. Returns
False if there is any IOError, else returns True. Use full paths in
your filename.
:Args:
- filename: The full path you wish to save your screenshot to. This
should end with a `.png` extension.
:Usage:
::
driver.get_full_page_screenshot_as_file('/Screenshots/foo.png')
"""
if not filename.lower().endswith(".png"):
warnings.warn(
"name used for saved screenshot does not match file " "type. It should end with a `.png` extension",
UserWarning,
)
png = self.get_full_page_screenshot_as_png()
try:
with open(filename, "wb") as f:
f.write(png)
except OSError:
return False
finally:
del png
return True
def save_full_page_screenshot(self, filename) -> bool:
"""
Saves a full document screenshot of the current window to a PNG image file. Returns
False if there is any IOError, else returns True. Use full paths in
your filename.
:Args:
- filename: The full path you wish to save your screenshot to. This
should end with a `.png` extension.
:Usage:
::
driver.save_full_page_screenshot('/Screenshots/foo.png')
"""
return self.get_full_page_screenshot_as_file(filename)
def get_full_page_screenshot_as_png(self) -> bytes:
"""
Gets the full document screenshot of the current window as a binary data.
:Usage:
::
driver.get_full_page_screenshot_as_png()
"""
return base64.b64decode(self.get_full_page_screenshot_as_base64().encode("ascii"))
def get_full_page_screenshot_as_base64(self) -> str:
"""
Gets the full document screenshot of the current window as a base64 encoded string
which is useful in embedded images in HTML.
:Usage:
::
driver.get_full_page_screenshot_as_base64()
"""
return self.execute("FULL_PAGE_SCREENSHOT")["value"]