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app/constants/clientflags.py

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+from __future__ import annotations
+
+from enum import IntFlag
+from enum import unique
+
+from app.utils import escape_enum
+from app.utils import pymysql_encode
+
+
+@unique
+@pymysql_encode(escape_enum)
+class ClientFlags(IntFlag):
+    """osu! anticheat <= 2016 (unsure of age)"""
+
+    # NOTE: many of these flags are quite outdated and/or
+    # broken and are even known to false positive quite often.
+    # they can be helpful; just take them with a grain of salt.
+
+    CLEAN = 0  # no flags sent
+
+    # flags for timing errors or desync.
+    SPEED_HACK_DETECTED = 1 << 1
+
+    # this is to be ignored by server implementations. osu! team trolling hard
+    INCORRECT_MOD_VALUE = 1 << 2
+
+    MULTIPLE_OSU_CLIENTS = 1 << 3
+    CHECKSUM_FAILURE = 1 << 4
+    FLASHLIGHT_CHECKSUM_INCORRECT = 1 << 5
+
+    # these are only used on the osu!bancho official server.
+    OSU_EXECUTABLE_CHECKSUM = 1 << 6
+    MISSING_PROCESSES_IN_LIST = 1 << 7  # also deprecated as of 2018
+
+    # flags for either:
+    # 1. pixels that should be outside the visible radius
+    # (and thus black) being brighter than they should be.
+    # 2. from an internal alpha value being incorrect.
+    FLASHLIGHT_IMAGE_HACK = 1 << 8
+
+    SPINNER_HACK = 1 << 9
+    TRANSPARENT_WINDOW = 1 << 10
+
+    # (mania) flags for consistently low press intervals.
+    FAST_PRESS = 1 << 11
+
+    # from my experience, pretty decent
+    # for detecting autobotted scores.
+    RAW_MOUSE_DISCREPANCY = 1 << 12
+    RAW_KEYBOARD_DISCREPANCY = 1 << 13
+
+
+@unique
+@pymysql_encode(escape_enum)
+class LastFMFlags(IntFlag):
+    """osu! anticheat 2019"""
+
+    # XXX: the aqn flags were fixed within hours of the osu!
+    # update, and vanilla hq is not so widely used anymore.
+    RUN_WITH_LD_FLAG = 1 << 14
+    CONSOLE_OPEN = 1 << 15
+    EXTRA_THREADS = 1 << 16
+    HQ_ASSEMBLY = 1 << 17
+    HQ_FILE = 1 << 18
+    REGISTRY_EDITS = 1 << 19
+    SDL2_LIBRARY = 1 << 20
+    OPENSSL_LIBRARY = 1 << 21
+    AQN_MENU_SAMPLE = 1 << 22