async def launch_firefox_async(
pw_instance: "AsyncPlaywrightContextManager",
h3: bool,
endpoint: Endpoint,
warmup: bool,
qlog: bool,
pcap: bool,
expnt_id: int,
run_id: int,
) -> json:
# set up firefox preference
firefox_prefs = {}
firefox_prefs["privacy.reduceTimerPrecision"] = False
if h3:
if qlog:
firefox_prefs[
"network.http.http3.enable_qlog"] = True # enable qlog
firefox_prefs[
"network.http.http3.enabled"] = True # enable h3 protocol
firefox_prefs[
"network.http.spdy.enabled.http2"] = False # disable h2 protocol
firefox_prefs[
"network.http.spdy.enabled"] = False # disable h1.1 protocol
# the openlightspeed server works with a different h3 version than the rest of the servers
port = endpoint.get_port()
h3_version = "29"
if endpoint.get_endpoint() == "server-openlitespeed":
h3_version = "27"
firefox_prefs[
"network.http.http3.alt-svc-mapping-for-testing"] = f"{endpoint.port};h3-{h3_version}=:{port}"
# attempt to launch browser
try:
if pcap:
pcap_file = f"{os.getcwd()}/results/packets/async-{expnt_id}/firefox/{run_id}-{h3}.keys"
return await pw_instance.firefox.launch(
headless=True,
firefox_user_prefs=firefox_prefs,
env={"SSLKEYLOGFILE": pcap_file})
else:
return await pw_instance.firefox.launch(
headless=True,
firefox_user_prefs=firefox_prefs,
)
except Exception as e: # if browser fails to launch, stop this request and write to the database
logger.exception(str(e))
return None
