feat: add psagentai agent with deployment and configuration

Initial project setup including the main agent script, configuration
files, profile JSON state, systemd service unit, startup script,
deployment documentation, and Python dependencies.

Includes .env, venv/, and __pycache__/ which should likely be
excluded via .gitignore to avoid committing secrets and artifacts.
This commit is contained in:
2026-10-25 17:05:13 -03:00
commit 6b3b6541a7
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#
# The Python Imaging Library.
# $Id$
#
# BMP file handler
#
# Windows (and OS/2) native bitmap storage format.
#
# history:
# 1995-09-01 fl Created
# 1996-04-30 fl Added save
# 1997-08-27 fl Fixed save of 1-bit images
# 1998-03-06 fl Load P images as L where possible
# 1998-07-03 fl Load P images as 1 where possible
# 1998-12-29 fl Handle small palettes
# 2002-12-30 fl Fixed load of 1-bit palette images
# 2003-04-21 fl Fixed load of 1-bit monochrome images
# 2003-04-23 fl Added limited support for BI_BITFIELDS compression
#
# Copyright (c) 1997-2003 by Secret Labs AB
# Copyright (c) 1995-2003 by Fredrik Lundh
#
# See the README file for information on usage and redistribution.
#
from __future__ import annotations
import os
from typing import IO, Any
from . import Image, ImageFile, ImagePalette
from ._binary import i16le as i16
from ._binary import i32le as i32
from ._binary import o8
from ._binary import o16le as o16
from ._binary import o32le as o32
#
# --------------------------------------------------------------------
# Read BMP file
BIT2MODE = {
# bits => mode, rawmode
1: ("P", "P;1"),
4: ("P", "P;4"),
8: ("P", "P"),
16: ("RGB", "BGR;15"),
24: ("RGB", "BGR"),
32: ("RGB", "BGRX"),
}
USE_RAW_ALPHA = False
def _accept(prefix: bytes) -> bool:
return prefix.startswith(b"BM")
def _dib_accept(prefix: bytes) -> bool:
return i32(prefix) in [12, 40, 52, 56, 64, 108, 124]
# =============================================================================
# Image plugin for the Windows BMP format.
# =============================================================================
class BmpImageFile(ImageFile.ImageFile):
"""Image plugin for the Windows Bitmap format (BMP)"""
# ------------------------------------------------------------- Description
format_description = "Windows Bitmap"
format = "BMP"
# -------------------------------------------------- BMP Compression values
COMPRESSIONS = {"RAW": 0, "RLE8": 1, "RLE4": 2, "BITFIELDS": 3, "JPEG": 4, "PNG": 5}
for k, v in COMPRESSIONS.items():
vars()[k] = v
def _bitmap(self, header: int = 0, offset: int = 0) -> None:
"""Read relevant info about the BMP"""
assert self.fp is not None
read, seek = self.fp.read, self.fp.seek
if header:
seek(header)
# read bmp header size @offset 14 (this is part of the header size)
file_info: dict[str, bool | int | tuple[int, ...]] = {
"header_size": i32(read(4)),
"direction": -1,
}
# -------------------- If requested, read header at a specific position
# read the rest of the bmp header, without its size
assert isinstance(file_info["header_size"], int)
header_data = ImageFile._safe_read(self.fp, file_info["header_size"] - 4)
# ------------------------------- Windows Bitmap v2, IBM OS/2 Bitmap v1
# ----- This format has different offsets because of width/height types
# 12: BITMAPCOREHEADER/OS21XBITMAPHEADER
if file_info["header_size"] == 12:
file_info["width"] = i16(header_data, 0)
file_info["height"] = i16(header_data, 2)
file_info["planes"] = i16(header_data, 4)
file_info["bits"] = i16(header_data, 6)
file_info["compression"] = self.COMPRESSIONS["RAW"]
file_info["palette_padding"] = 3
# --------------------------------------------- Windows Bitmap v3 to v5
# 40: BITMAPINFOHEADER
# 52: BITMAPV2HEADER
# 56: BITMAPV3HEADER
# 64: BITMAPCOREHEADER2/OS22XBITMAPHEADER
# 108: BITMAPV4HEADER
# 124: BITMAPV5HEADER
elif file_info["header_size"] in (40, 52, 56, 64, 108, 124):
file_info["y_flip"] = header_data[7] == 0xFF
file_info["direction"] = 1 if file_info["y_flip"] else -1
file_info["width"] = i32(header_data, 0)
file_info["height"] = (
i32(header_data, 4)
if not file_info["y_flip"]
else 2**32 - i32(header_data, 4)
)
file_info["planes"] = i16(header_data, 8)
file_info["bits"] = i16(header_data, 10)
file_info["compression"] = i32(header_data, 12)
# byte size of pixel data
file_info["data_size"] = i32(header_data, 16)
file_info["pixels_per_meter"] = (
i32(header_data, 20),
i32(header_data, 24),
)
file_info["colors"] = i32(header_data, 28)
file_info["palette_padding"] = 4
assert isinstance(file_info["pixels_per_meter"], tuple)
self.info["dpi"] = tuple(x / 39.3701 for x in file_info["pixels_per_meter"])
if file_info["compression"] == self.COMPRESSIONS["BITFIELDS"]:
masks = ["r_mask", "g_mask", "b_mask"]
if len(header_data) >= 48:
if len(header_data) >= 52:
masks.append("a_mask")
else:
file_info["a_mask"] = 0x0
for idx, mask in enumerate(masks):
file_info[mask] = i32(header_data, 36 + idx * 4)
else:
# 40 byte headers only have the three components in the
# bitfields masks, ref:
# https://msdn.microsoft.com/en-us/library/windows/desktop/dd183376(v=vs.85).aspx
# See also
# https://github.com/python-pillow/Pillow/issues/1293
# There is a 4th component in the RGBQuad, in the alpha
# location, but it is listed as a reserved component,
# and it is not generally an alpha channel
file_info["a_mask"] = 0x0
for mask in masks:
file_info[mask] = i32(read(4))
assert isinstance(file_info["r_mask"], int)
assert isinstance(file_info["g_mask"], int)
assert isinstance(file_info["b_mask"], int)
assert isinstance(file_info["a_mask"], int)
file_info["rgb_mask"] = (
file_info["r_mask"],
file_info["g_mask"],
file_info["b_mask"],
)
file_info["rgba_mask"] = (
file_info["r_mask"],
file_info["g_mask"],
file_info["b_mask"],
file_info["a_mask"],
)
else:
msg = f"Unsupported BMP header type ({file_info['header_size']})"
raise OSError(msg)
# ------------------ Special case : header is reported 40, which
# ---------------------- is shorter than real size for bpp >= 16
assert isinstance(file_info["width"], int)
assert isinstance(file_info["height"], int)
self._size = file_info["width"], file_info["height"]
# ------- If color count was not found in the header, compute from bits
assert isinstance(file_info["bits"], int)
if not file_info.get("colors", 0):
file_info["colors"] = 1 << file_info["bits"]
assert isinstance(file_info["palette_padding"], int)
assert isinstance(file_info["colors"], int)
if offset == 14 + file_info["header_size"] and file_info["bits"] <= 8:
offset += file_info["palette_padding"] * file_info["colors"]
# ---------------------- Check bit depth for unusual unsupported values
self._mode, raw_mode = BIT2MODE.get(file_info["bits"], ("", ""))
if not self.mode:
msg = f"Unsupported BMP pixel depth ({file_info['bits']})"
raise OSError(msg)
# ---------------- Process BMP with Bitfields compression (not palette)
decoder_name = "raw"
if file_info["compression"] == self.COMPRESSIONS["BITFIELDS"]:
SUPPORTED: dict[int, list[tuple[int, ...]]] = {
32: [
(0xFF0000, 0xFF00, 0xFF, 0x0),
(0xFF000000, 0xFF0000, 0xFF00, 0x0),
(0xFF000000, 0xFF00, 0xFF, 0x0),
(0xFF000000, 0xFF0000, 0xFF00, 0xFF),
(0xFF, 0xFF00, 0xFF0000, 0xFF000000),
(0xFF0000, 0xFF00, 0xFF, 0xFF000000),
(0xFF000000, 0xFF00, 0xFF, 0xFF0000),
(0x0, 0x0, 0x0, 0x0),
],
24: [(0xFF0000, 0xFF00, 0xFF)],
16: [(0xF800, 0x7E0, 0x1F), (0x7C00, 0x3E0, 0x1F)],
}
MASK_MODES = {
(32, (0xFF0000, 0xFF00, 0xFF, 0x0)): "BGRX",
(32, (0xFF000000, 0xFF0000, 0xFF00, 0x0)): "XBGR",
(32, (0xFF000000, 0xFF00, 0xFF, 0x0)): "BGXR",
(32, (0xFF000000, 0xFF0000, 0xFF00, 0xFF)): "ABGR",
(32, (0xFF, 0xFF00, 0xFF0000, 0xFF000000)): "RGBA",
(32, (0xFF0000, 0xFF00, 0xFF, 0xFF000000)): "BGRA",
(32, (0xFF000000, 0xFF00, 0xFF, 0xFF0000)): "BGAR",
(32, (0x0, 0x0, 0x0, 0x0)): "BGRA",
(24, (0xFF0000, 0xFF00, 0xFF)): "BGR",
(16, (0xF800, 0x7E0, 0x1F)): "BGR;16",
(16, (0x7C00, 0x3E0, 0x1F)): "BGR;15",
}
if file_info["bits"] in SUPPORTED:
if (
file_info["bits"] == 32
and file_info["rgba_mask"] in SUPPORTED[file_info["bits"]]
):
assert isinstance(file_info["rgba_mask"], tuple)
raw_mode = MASK_MODES[(file_info["bits"], file_info["rgba_mask"])]
self._mode = "RGBA" if "A" in raw_mode else self.mode
elif (
file_info["bits"] in (24, 16)
and file_info["rgb_mask"] in SUPPORTED[file_info["bits"]]
):
assert isinstance(file_info["rgb_mask"], tuple)
raw_mode = MASK_MODES[(file_info["bits"], file_info["rgb_mask"])]
else:
msg = "Unsupported BMP bitfields layout"
raise OSError(msg)
else:
msg = "Unsupported BMP bitfields layout"
raise OSError(msg)
elif file_info["compression"] == self.COMPRESSIONS["RAW"]:
if file_info["bits"] == 32 and (
header == 22 or USE_RAW_ALPHA # 32-bit .cur offset
):
raw_mode, self._mode = "BGRA", "RGBA"
elif file_info["compression"] in (
self.COMPRESSIONS["RLE8"],
self.COMPRESSIONS["RLE4"],
):
decoder_name = "bmp_rle"
else:
msg = f"Unsupported BMP compression ({file_info['compression']})"
raise OSError(msg)
# --------------- Once the header is processed, process the palette/LUT
if self.mode == "P": # Paletted for 1, 4 and 8 bit images
# ---------------------------------------------------- 1-bit images
if not (0 < file_info["colors"] <= 65536):
msg = f"Unsupported BMP Palette size ({file_info['colors']})"
raise OSError(msg)
else:
padding = file_info["palette_padding"]
palette = read(padding * file_info["colors"])
grayscale = True
indices = (
(0, 255)
if file_info["colors"] == 2
else list(range(file_info["colors"]))
)
# ----------------- Check if grayscale and ignore palette if so
for ind, val in enumerate(indices):
rgb = palette[ind * padding : ind * padding + 3]
if rgb != o8(val) * 3:
grayscale = False
# ------- If all colors are gray, white or black, ditch palette
if grayscale:
self._mode = "1" if file_info["colors"] == 2 else "L"
raw_mode = self.mode
else:
self._mode = "P"
self.palette = ImagePalette.raw(
"BGRX" if padding == 4 else "BGR", palette
)
# ---------------------------- Finally set the tile data for the plugin
self.info["compression"] = file_info["compression"]
args: list[Any] = [raw_mode]
if decoder_name == "bmp_rle":
args.append(file_info["compression"] == self.COMPRESSIONS["RLE4"])
else:
assert isinstance(file_info["width"], int)
args.append(((file_info["width"] * file_info["bits"] + 31) >> 3) & (~3))
args.append(file_info["direction"])
self.tile = [
ImageFile._Tile(
decoder_name,
(0, 0, file_info["width"], file_info["height"]),
offset or self.fp.tell(),
tuple(args),
)
]
def _open(self) -> None:
"""Open file, check magic number and read header"""
# read 14 bytes: magic number, filesize, reserved, header final offset
assert self.fp is not None
head_data = self.fp.read(14)
# choke if the file does not have the required magic bytes
if not _accept(head_data):
msg = "Not a BMP file"
raise SyntaxError(msg)
# read the start position of the BMP image data (u32)
offset = i32(head_data, 10)
# load bitmap information (offset=raster info)
self._bitmap(offset=offset)
class BmpRleDecoder(ImageFile.PyDecoder):
_pulls_fd = True
def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
assert self.fd is not None
rle4 = self.args[1]
data = bytearray()
x = 0
dest_length = self.state.xsize * self.state.ysize
while len(data) < dest_length:
pixels = self.fd.read(1)
byte = self.fd.read(1)
if not pixels or not byte:
break
num_pixels = pixels[0]
if num_pixels:
# encoded mode
if x + num_pixels > self.state.xsize:
# Too much data for row
num_pixels = max(0, self.state.xsize - x)
if rle4:
first_pixel = o8(byte[0] >> 4)
second_pixel = o8(byte[0] & 0x0F)
for index in range(num_pixels):
if index % 2 == 0:
data += first_pixel
else:
data += second_pixel
else:
data += byte * num_pixels
x += num_pixels
else:
if byte[0] == 0:
# end of line
while len(data) % self.state.xsize != 0:
data += b"\x00"
x = 0
elif byte[0] == 1:
# end of bitmap
break
elif byte[0] == 2:
# delta
bytes_read = self.fd.read(2)
if len(bytes_read) < 2:
break
right, up = bytes_read
data += b"\x00" * (right + up * self.state.xsize)
x = len(data) % self.state.xsize
else:
# absolute mode
if rle4:
# 2 pixels per byte
byte_count = byte[0] // 2
bytes_read = self.fd.read(byte_count)
for byte_read in bytes_read:
data += o8(byte_read >> 4)
data += o8(byte_read & 0x0F)
else:
byte_count = byte[0]
bytes_read = self.fd.read(byte_count)
data += bytes_read
if len(bytes_read) < byte_count:
break
x += byte[0]
# align to 16-bit word boundary
if self.fd.tell() % 2 != 0:
self.fd.seek(1, os.SEEK_CUR)
rawmode = "L" if self.mode == "L" else "P"
self.set_as_raw(bytes(data), rawmode, (0, self.args[-1]))
return -1, 0
# =============================================================================
# Image plugin for the DIB format (BMP alias)
# =============================================================================
class DibImageFile(BmpImageFile):
format = "DIB"
format_description = "Windows Bitmap"
def _open(self) -> None:
self._bitmap()
#
# --------------------------------------------------------------------
# Write BMP file
SAVE = {
"1": ("1", 1, 2),
"L": ("L", 8, 256),
"P": ("P", 8, 256),
"RGB": ("BGR", 24, 0),
"RGBA": ("BGRA", 32, 0),
}
def _dib_save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
_save(im, fp, filename, False)
def _save(
im: Image.Image, fp: IO[bytes], filename: str | bytes, bitmap_header: bool = True
) -> None:
try:
rawmode, bits, colors = SAVE[im.mode]
except KeyError as e:
msg = f"cannot write mode {im.mode} as BMP"
raise OSError(msg) from e
info = im.encoderinfo
dpi = info.get("dpi", (96, 96))
# 1 meter == 39.3701 inches
ppm = tuple(int(x * 39.3701 + 0.5) for x in dpi)
stride = ((im.size[0] * bits + 7) // 8 + 3) & (~3)
header = 40 # or 64 for OS/2 version 2
image = stride * im.size[1]
if im.mode == "1":
palette = b"".join(o8(i) * 3 + b"\x00" for i in (0, 255))
elif im.mode == "L":
palette = b"".join(o8(i) * 3 + b"\x00" for i in range(256))
elif im.mode == "P":
palette = im.im.getpalette("RGB", "BGRX")
colors = len(palette) // 4
else:
palette = None
# bitmap header
if bitmap_header:
offset = 14 + header + colors * 4
file_size = offset + image
if file_size > 2**32 - 1:
msg = "File size is too large for the BMP format"
raise ValueError(msg)
fp.write(
b"BM" # file type (magic)
+ o32(file_size) # file size
+ o32(0) # reserved
+ o32(offset) # image data offset
)
# bitmap info header
fp.write(
o32(header) # info header size
+ o32(im.size[0]) # width
+ o32(im.size[1]) # height
+ o16(1) # planes
+ o16(bits) # depth
+ o32(0) # compression (0=uncompressed)
+ o32(image) # size of bitmap
+ o32(ppm[0]) # resolution
+ o32(ppm[1]) # resolution
+ o32(colors) # colors used
+ o32(colors) # colors important
)
fp.write(b"\0" * (header - 40)) # padding (for OS/2 format)
if palette:
fp.write(palette)
ImageFile._save(
im, fp, [ImageFile._Tile("raw", (0, 0) + im.size, 0, (rawmode, stride, -1))]
)
#
# --------------------------------------------------------------------
# Registry
Image.register_open(BmpImageFile.format, BmpImageFile, _accept)
Image.register_save(BmpImageFile.format, _save)
Image.register_extension(BmpImageFile.format, ".bmp")
Image.register_mime(BmpImageFile.format, "image/bmp")
Image.register_decoder("bmp_rle", BmpRleDecoder)
Image.register_open(DibImageFile.format, DibImageFile, _dib_accept)
Image.register_save(DibImageFile.format, _dib_save)
Image.register_extension(DibImageFile.format, ".dib")
Image.register_mime(DibImageFile.format, "image/bmp")