113 lines
3.3 KiB
Python
113 lines
3.3 KiB
Python
import hashlib
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from typing import Any
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import esphome.codegen as cg
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from esphome.components import esp32, update
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from esphome.components.const import CONF_SHA256
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import esphome.config_validation as cv
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from esphome.const import CONF_ID, CONF_PATH, CONF_SOURCE, CONF_TYPE
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from esphome.core import CORE, ID, HexInt
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CODEOWNERS = ["@swoboda1337"]
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AUTO_LOAD = ["sha256", "watchdog", "json"]
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DEPENDENCIES = ["esp32_hosted"]
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CONF_HTTP_REQUEST_ID = "http_request_id"
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TYPE_EMBEDDED = "embedded"
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TYPE_HTTP = "http"
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esp32_hosted_ns = cg.esphome_ns.namespace("esp32_hosted")
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http_request_ns = cg.esphome_ns.namespace("http_request")
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HttpRequestComponent = http_request_ns.class_("HttpRequestComponent", cg.Component)
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Esp32HostedUpdate = esp32_hosted_ns.class_(
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"Esp32HostedUpdate", update.UpdateEntity, cg.PollingComponent
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)
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def _validate_sha256(value: Any) -> str:
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value = cv.string_strict(value)
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if len(value) != 64:
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raise cv.Invalid("SHA256 must be 64 hexadecimal characters")
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try:
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bytes.fromhex(value)
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except ValueError as e:
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raise cv.Invalid(f"SHA256 must be valid hexadecimal: {e}") from e
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return value
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BASE_SCHEMA = update.update_schema(Esp32HostedUpdate, device_class="firmware").extend(
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cv.polling_component_schema("6h")
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)
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EMBEDDED_SCHEMA = BASE_SCHEMA.extend(
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{
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cv.Required(CONF_PATH): cv.file_,
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cv.Required(CONF_SHA256): _validate_sha256,
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}
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)
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HTTP_SCHEMA = BASE_SCHEMA.extend(
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{
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cv.GenerateID(CONF_HTTP_REQUEST_ID): cv.use_id(HttpRequestComponent),
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cv.Required(CONF_SOURCE): cv.url,
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}
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)
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CONFIG_SCHEMA = cv.All(
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cv.typed_schema(
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{
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TYPE_EMBEDDED: EMBEDDED_SCHEMA,
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TYPE_HTTP: HTTP_SCHEMA,
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}
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),
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esp32.only_on_variant(
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supported=[
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esp32.VARIANT_ESP32H2,
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esp32.VARIANT_ESP32P4,
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]
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),
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)
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def _validate_firmware(config: dict[str, Any]) -> None:
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if config[CONF_TYPE] != TYPE_EMBEDDED:
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return
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path = CORE.relative_config_path(config[CONF_PATH])
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with path.open("rb") as f:
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firmware_data = f.read()
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calculated = hashlib.sha256(firmware_data).hexdigest()
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expected = config[CONF_SHA256].lower()
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if calculated != expected:
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raise cv.Invalid(
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f"SHA256 mismatch for {config[CONF_PATH]}: expected {expected}, got {calculated}"
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)
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FINAL_VALIDATE_SCHEMA = _validate_firmware
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async def to_code(config: dict[str, Any]) -> None:
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var = await update.new_update(config)
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if config[CONF_TYPE] == TYPE_EMBEDDED:
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path = config[CONF_PATH]
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with CORE.relative_config_path(path).open("rb") as f:
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firmware_data = f.read()
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rhs = [HexInt(x) for x in firmware_data]
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arr_id = ID(f"{config[CONF_ID]}_data", is_declaration=True, type=cg.uint8)
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prog_arr = cg.progmem_array(arr_id, rhs)
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sha256_bytes = bytes.fromhex(config[CONF_SHA256])
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cg.add(var.set_firmware_sha256([HexInt(b) for b in sha256_bytes]))
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cg.add(var.set_firmware_data(prog_arr))
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cg.add(var.set_firmware_size(len(firmware_data)))
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else:
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http_request_var = await cg.get_variable(config[CONF_HTTP_REQUEST_ID])
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cg.add(var.set_http_request_parent(http_request_var))
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cg.add(var.set_source_url(config[CONF_SOURCE]))
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cg.add_define("USE_ESP32_HOSTED_HTTP_UPDATE")
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await cg.register_component(var, config)
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