137 lines
4.4 KiB
Python
137 lines
4.4 KiB
Python
"""PolterHID application entry point."""
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import network
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import time
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import urandom
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from display import StatusDisplay
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from hid import get_hid
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from settings import load, save
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from web import WebServer
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KEY_HOLD_MS = 80
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def connect_wifi(settings):
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wlan = network.WLAN(network.STA_IF)
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wlan.active(True)
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set_mdns_hostname(wlan)
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if not wlan.isconnected():
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wlan.connect(settings["wifi_ssid"], settings["wifi_password"])
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return wlan
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def set_mdns_hostname(wlan):
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"""Set the hostname used by ESP32's built-in mDNS responder."""
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try:
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network.hostname("polterhid")
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except AttributeError:
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# Older ESP32 builds expose the same setting through the WLAN object.
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wlan.config(dhcp_hostname="polterhid")
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def seconds_to_ms(seconds):
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return seconds * 1000
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def randint(minimum, maximum):
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"""Return an inclusive random integer using MicroPython's core RNG API."""
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return minimum + (urandom.getrandbits(30) % (maximum - minimum + 1))
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def choose_due(now, minimum, maximum):
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return time.ticks_add(now, seconds_to_ms(randint(minimum, maximum)))
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def ip_address(wlan):
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"""Return the station IPv4 address across supported MicroPython versions."""
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try:
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return wlan.ipconfig("addr4")[0]
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except AttributeError:
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return wlan.ifconfig()[0]
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def main():
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settings = load()
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display = None
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if settings["display_enabled"]:
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display = StatusDisplay()
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hid = get_hid()
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wlan = connect_wifi(settings)
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volume_requests = []
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def request_volume(action):
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# Keep the UI responsive but bound queued manual actions.
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if len(volume_requests) < 8:
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volume_requests.append(action)
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server = WebServer(settings, lambda: save(settings), request_volume)
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now = time.ticks_ms()
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next_return = choose_due(now, settings["return_min_seconds"], settings["return_max_seconds"])
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next_mouse = choose_due(now, settings["mouse_min_seconds"], settings["mouse_max_seconds"])
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release_at = None
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consumer_release_at = None
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# connect_wifi() already started the first attempt; do not call connect()
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# again while the ESP32 station is still in STAT_CONNECTING state.
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next_wifi_retry = time.ticks_add(now, 10000)
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while True:
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now = time.ticks_ms()
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server.poll()
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# Reconnect without blocking injections or the web server indefinitely.
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if (not wlan.isconnected() and
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time.ticks_diff(now, next_wifi_retry) >= 0 and
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wlan.status() != network.STAT_CONNECTING):
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wlan.connect(settings["wifi_ssid"], settings["wifi_password"])
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next_wifi_retry = time.ticks_add(now, 10000)
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if display is not None:
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address = ip_address(wlan) if wlan.isconnected() else None
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display.tick(now, settings["wifi_ssid"], address)
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if release_at is not None and time.ticks_diff(now, release_at) >= 0:
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hid.release_keys()
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release_at = None
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if consumer_release_at is not None and time.ticks_diff(now, consumer_release_at) >= 0:
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hid.release_consumer()
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consumer_release_at = None
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elif consumer_release_at is None and volume_requests:
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if volume_requests.pop(0) == "volume_up":
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hid.press_volume_up()
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else:
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hid.press_volume_down()
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consumer_release_at = time.ticks_add(now, KEY_HOLD_MS)
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if (settings["enabled"] and settings["return_enabled"] and
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release_at is None and time.ticks_diff(now, next_return) >= 0):
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hid.press_return()
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release_at = time.ticks_add(now, KEY_HOLD_MS)
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next_return = choose_due(
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now, settings["return_min_seconds"], settings["return_max_seconds"]
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)
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if (settings["enabled"] and settings["mouse_enabled"] and
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time.ticks_diff(now, next_mouse) >= 0):
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# Never send (0, 0), so each scheduled jitter is observable.
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distance = settings["mouse_distance"]
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x = randint(-distance, distance)
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y = randint(-distance, distance)
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if x == 0 and y == 0:
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x = distance
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hid.move(x, y)
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next_mouse = choose_due(
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now, settings["mouse_min_seconds"], settings["mouse_max_seconds"]
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)
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# Do not busy-loop; 25 ms keeps the 80 ms key hold responsive.
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time.sleep_ms(25)
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if __name__ == "__main__":
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main()
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