Files
zigbee-OTA/src/common.ts
2025-06-24 21:42:45 +02:00

437 lines
15 KiB
TypeScript

import assert from "node:assert";
import {exec} from "node:child_process";
import {createHash} from "node:crypto";
import {existsSync, mkdirSync, readFileSync, renameSync, rmSync, writeFileSync} from "node:fs";
import path from "node:path";
import type {ExtraMetas, ExtraMetasWithFileName, ImageHeader, RepoImageMeta} from "./types";
export const UPGRADE_FILE_IDENTIFIER = Buffer.from([0x1e, 0xf1, 0xee, 0x0b]);
export const BASE_REPO_URL = "https://raw.githubusercontent.com/Koenkk/zigbee-OTA/";
export const REPO_BRANCH = "master";
/** Images used by OTA upgrade process */
export const BASE_IMAGES_DIR = "images";
/** Images used by OTA downgrade process */
export const PREV_IMAGES_DIR = "images1";
/** Manifest used by OTA upgrade process */
export const BASE_INDEX_MANIFEST_FILENAME = "index.json";
/** Manifest used by OTA downgrade process */
export const PREV_INDEX_MANIFEST_FILENAME = "index1.json";
export const CACHE_DIR = ".cache";
export const TMP_DIR = "tmp";
export const PR_ARTIFACT_DIR = "pr";
export const PR_DIFF_FILENAME = "PR_DIFF";
export const PR_ERROR_FILENAME = "PR_ERROR";
export const PR_NUMBER_FILENAME = "PR_NUMBER";
export const PR_ARTIFACT_DIFF_FILEPATH = path.join(PR_ARTIFACT_DIR, PR_DIFF_FILENAME);
export const PR_ARTIFACT_ERROR_FILEPATH = path.join(PR_ARTIFACT_DIR, PR_ERROR_FILENAME);
export const PR_ARTIFACT_NUMBER_FILEPATH = path.join(PR_ARTIFACT_DIR, PR_NUMBER_FILENAME);
/**
* 'ikea_new' first, to prioritize downloads from new URL
*/
export const ALL_AUTODL_MANUFACTURERS = [
"gammatroniques",
"hue",
"ikea_new",
"ikea",
"inovelli",
"jethome",
"ledvance",
"lixee",
"salus",
"ubisys",
"xyzroe",
];
export async function execute(command: string): Promise<string> {
return await new Promise((resolve, reject) => {
exec(command, (error, stdout) => {
if (error) {
reject(error);
} else {
resolve(stdout);
}
});
});
}
export function primitivesArrayEquals(a: (string | number | boolean)[], b: (string | number | boolean)[]): boolean {
return a.length === b.length && a.every((val, index) => val === b[index]);
}
export function computeSHA512(buffer: Buffer): string {
const hash = createHash("sha512");
hash.update(buffer);
return hash.digest("hex");
}
export function getOutDir(folderName: string, basePath: string = BASE_IMAGES_DIR): string {
const outDir = path.join(basePath, folderName);
if (!existsSync(outDir)) {
mkdirSync(outDir, {recursive: true});
}
return outDir;
}
export function getRepoFirmwareFileUrl(folderName: string, fileName: string, basePath: string = BASE_IMAGES_DIR): string {
return BASE_REPO_URL + path.posix.join(REPO_BRANCH, basePath, folderName, encodeURIComponent(fileName));
}
export function writeManifest(fileName: string, firmwareList: RepoImageMeta[]): void {
writeFileSync(fileName, JSON.stringify(firmwareList, undefined, 2), "utf8");
}
export function readManifest(fileName: string): RepoImageMeta[] {
return JSON.parse(readFileSync(fileName, "utf8"));
}
export function writeCacheJson<T>(fileName: string, contents: T, basePath: string = CACHE_DIR): void {
writeFileSync(path.join(basePath, `${fileName}.json`), JSON.stringify(contents), "utf8");
}
export function readCacheJson<T>(fileName: string, basePath: string = CACHE_DIR): T | undefined {
const filePath = path.join(basePath, `${fileName}.json`);
return existsSync(filePath) ? JSON.parse(readFileSync(filePath, "utf8")) : undefined;
}
export function parseImageHeader(buffer: Buffer): ImageHeader {
try {
const header: ImageHeader = {
otaUpgradeFileIdentifier: buffer.subarray(0, 4),
otaHeaderVersion: buffer.readUInt16LE(4),
otaHeaderLength: buffer.readUInt16LE(6),
otaHeaderFieldControl: buffer.readUInt16LE(8),
manufacturerCode: buffer.readUInt16LE(10),
imageType: buffer.readUInt16LE(12),
fileVersion: buffer.readUInt32LE(14),
zigbeeStackVersion: buffer.readUInt16LE(18),
otaHeaderString: buffer.toString("utf8", 20, 52),
totalImageSize: buffer.readUInt32LE(52),
};
let headerPos = 56;
if (header.otaHeaderFieldControl & 1) {
header.securityCredentialVersion = buffer.readUInt8(headerPos);
headerPos += 1;
}
if (header.otaHeaderFieldControl & 2) {
header.upgradeFileDestination = buffer.subarray(headerPos, headerPos + 8);
headerPos += 8;
}
if (header.otaHeaderFieldControl & 4) {
header.minimumHardwareVersion = buffer.readUInt16LE(headerPos);
headerPos += 2;
header.maximumHardwareVersion = buffer.readUInt16LE(headerPos);
headerPos += 2;
}
assert(UPGRADE_FILE_IDENTIFIER.equals(header.otaUpgradeFileIdentifier), "Invalid upgrade file identifier");
return header;
} catch (error) {
throw new Error(`Not a valid OTA file (${(error as Error).message}).`);
}
}
/**
* Adapted from zigbee-herdsman-converters logic
*/
export function findMatchImage(
image: ImageHeader,
imageList: RepoImageMeta[],
extraMetas: ExtraMetas,
): [index: number, image: RepoImageMeta | undefined] {
const imageIndex = imageList.findIndex(
(i) =>
i.imageType === image.imageType &&
i.manufacturerCode === image.manufacturerCode &&
extraMetas.minFileVersion === i.minFileVersion &&
extraMetas.maxFileVersion === i.maxFileVersion &&
extraMetas.hardwareVersionMin === i.hardwareVersionMin &&
extraMetas.hardwareVersionMax === i.hardwareVersionMax &&
i.modelId === extraMetas.modelId &&
(!i.manufacturerName || (extraMetas.manufacturerName && primitivesArrayEquals(i.manufacturerName, extraMetas.manufacturerName))),
);
return [imageIndex, imageIndex === -1 ? undefined : imageList[imageIndex]];
}
export function changeRepoUrl(repoUrl: string, fromDir: string, toDir: string): string {
return repoUrl.replace(path.posix.join(REPO_BRANCH, fromDir), path.posix.join(REPO_BRANCH, toDir));
}
export async function getJson<T>(manufacturer: string, pageUrl: string): Promise<T | undefined> {
const response = await fetch(pageUrl);
if (!response.ok || !response.body) {
console.error(`[${manufacturer}] Invalid response from ${pageUrl} status=${response.status}.`);
return;
}
return (await response.json()) as T;
}
export async function getText(manufacturer: string, pageUrl: string): Promise<string | undefined> {
const response = await fetch(pageUrl);
if (!response.ok || !response.body) {
console.error(`[${manufacturer}] Invalid response from ${pageUrl} status=${response.status}.`);
return;
}
return await response.text();
}
export function getLatestImage<T>(list: T[] | undefined, compareFn: (a: T, b: T) => number): T | undefined {
if (!list) {
return undefined;
}
const sortedList = list.sort(compareFn);
return sortedList.slice(0, sortedList.length > 1 && process.env.PREV ? -1 : undefined).pop();
}
export enum ParsedImageStatus {
New = 0,
Newer = 1,
Older = 2,
Identical = 3,
}
export function getParsedImageStatus(parsedImage: ImageHeader, match?: RepoImageMeta): ParsedImageStatus {
if (match) {
if (match.fileVersion > parsedImage.fileVersion) {
return ParsedImageStatus.Older;
}
if (match.fileVersion < parsedImage.fileVersion) {
return ParsedImageStatus.Newer;
}
return ParsedImageStatus.Identical;
}
return ParsedImageStatus.New;
}
/**
* Prevent irrelevant metas from being added to manifest.
*
* NOTE: fileName should be deleted before adding to manifest for consistency (always use original file name).
* @param metas
* @returns
*/
export function getValidMetas(metas: Partial<ExtraMetas & ExtraMetasWithFileName & RepoImageMeta>, ignoreFileName: boolean): ExtraMetasWithFileName {
const validMetas: ExtraMetasWithFileName = {};
if (!ignoreFileName) {
if (metas.fileName != null) {
if (typeof metas.fileName !== "string") {
throw new Error(`Invalid format for 'fileName', expected 'string' type.`);
}
validMetas.fileName = metas.fileName;
}
}
if (metas.originalUrl != null) {
if (typeof metas.originalUrl !== "string") {
throw new Error(`Invalid format for 'originalUrl', expected 'string' type.`);
}
validMetas.originalUrl = metas.originalUrl;
}
if (metas.force != null) {
if (typeof metas.force !== "boolean") {
throw new Error(`Invalid format for 'force', expected 'boolean' type.`);
}
validMetas.force = metas.force;
}
if (metas.hardwareVersionMax != null) {
if (typeof metas.hardwareVersionMax !== "number") {
throw new Error(`Invalid format for 'hardwareVersionMax', expected 'number' type.`);
}
validMetas.hardwareVersionMax = metas.hardwareVersionMax;
}
if (metas.hardwareVersionMin != null) {
if (typeof metas.hardwareVersionMin !== "number") {
throw new Error(`Invalid format for 'hardwareVersionMin', expected 'number' type.`);
}
validMetas.hardwareVersionMin = metas.hardwareVersionMin;
}
if (metas.manufacturerName != null) {
if (
!Array.isArray(metas.manufacturerName) ||
metas.manufacturerName.length < 1 ||
metas.manufacturerName.some((m) => typeof m !== "string")
) {
throw new Error(`Invalid format for 'manufacturerName', expected 'array of string' type.`);
}
validMetas.manufacturerName = metas.manufacturerName;
}
if (metas.maxFileVersion != null) {
if (typeof metas.maxFileVersion !== "number") {
throw new Error(`Invalid format for 'maxFileVersion', expected 'number' type.`);
}
validMetas.maxFileVersion = metas.maxFileVersion;
}
if (metas.minFileVersion != null) {
if (typeof metas.minFileVersion !== "number") {
throw new Error(`Invalid format for 'minFileVersion', expected 'number' type.`);
}
validMetas.minFileVersion = metas.minFileVersion;
}
if (metas.modelId != null) {
if (typeof metas.modelId !== "string") {
throw new Error(`Invalid format for 'modelId', expected 'string' type.`);
}
validMetas.modelId = metas.modelId;
}
if (metas.releaseNotes != null) {
if (typeof metas.releaseNotes !== "string") {
throw new Error(`Invalid format for 'releaseNotes', expected 'string' type.`);
}
validMetas.releaseNotes = metas.releaseNotes;
}
return validMetas;
}
export function addImageToPrev(
logPrefix: string,
isNewer: boolean,
prevManifest: RepoImageMeta[],
prevMatchIndex: number,
prevMatch: RepoImageMeta,
prevOutDir: string,
firmwareFileName: string,
manufacturer: string,
parsedImage: ImageHeader,
firmwareBuffer: Buffer,
originalUrl: string | undefined,
extraMetas: ExtraMetas,
onBeforeManifestPush: () => void,
): void {
console.log(`${logPrefix} Base manifest has higher version. Adding to prev instead.`);
if (isNewer) {
console.log(`${logPrefix} Removing prev image.`);
prevManifest.splice(prevMatchIndex, 1);
// make sure fileName exists for migration from old system
const prevFileName = prevMatch.fileName ? prevMatch.fileName : prevMatch.url.split("/").pop()!;
rmSync(path.join(prevOutDir, prevFileName), {force: true});
}
onBeforeManifestPush();
prevManifest.push({
fileName: firmwareFileName,
fileVersion: parsedImage.fileVersion,
fileSize: parsedImage.totalImageSize,
originalUrl,
url: getRepoFirmwareFileUrl(manufacturer, firmwareFileName, PREV_IMAGES_DIR),
imageType: parsedImage.imageType,
manufacturerCode: parsedImage.manufacturerCode,
sha512: computeSHA512(firmwareBuffer),
otaHeaderString: parsedImage.otaHeaderString.replaceAll("\u0000", ""),
...extraMetas,
});
}
export function addImageToBase(
logPrefix: string,
isNewer: boolean,
prevManifest: RepoImageMeta[],
prevOutDir: string,
baseManifest: RepoImageMeta[],
baseMatchIndex: number,
baseMatch: RepoImageMeta,
baseOutDir: string,
firmwareFileName: string,
manufacturer: string,
parsedImage: ImageHeader,
firmwareBuffer: Buffer,
originalUrl: string | undefined,
extraMetas: ExtraMetas,
onBeforeManifestPush: () => void,
): void {
if (isNewer) {
console.log(`${logPrefix} Base manifest has older version ${baseMatch.fileVersion}. Replacing with ${parsedImage.fileVersion}.`);
const [prevMatchIndex, prevMatch] = findMatchImage(parsedImage, prevManifest, extraMetas);
const prevStatus = getParsedImageStatus(parsedImage, prevMatch);
if (prevStatus !== ParsedImageStatus.Older && prevStatus !== ParsedImageStatus.New) {
console.warn(`${logPrefix} Base image is new/newer but prev image is not older/non-existing.`);
}
if (prevStatus !== ParsedImageStatus.New) {
console.log(`${logPrefix} Removing prev image.`);
prevManifest.splice(prevMatchIndex, 1);
// make sure fileName exists for migration from old system
const prevFileName = prevMatch!.fileName ? prevMatch!.fileName : prevMatch!.url.split("/").pop()!;
rmSync(path.join(prevOutDir, prevFileName), {force: true});
}
// relocate base to prev
// make sure fileName exists for migration from old system
const baseFileName = baseMatch.fileName ? baseMatch.fileName : baseMatch.url.split("/").pop()!;
const baseFilePath = path.join(baseOutDir, baseFileName);
// if for some reason the file is no longer present (should not happen), don't add it to prev since link is broken
if (existsSync(baseFilePath)) {
renameSync(baseFilePath, path.join(prevOutDir, baseFileName));
baseMatch!.url = changeRepoUrl(baseMatch.url, BASE_IMAGES_DIR, PREV_IMAGES_DIR);
prevManifest.push(baseMatch);
} else {
console.error(`${logPrefix} Image file '${baseFilePath}' does not exist. Not moving to prev.`);
}
baseManifest.splice(baseMatchIndex, 1);
} else {
console.log(`${logPrefix} Base manifest does not have version ${parsedImage.fileVersion}. Adding.`);
}
onBeforeManifestPush();
baseManifest.push({
fileName: firmwareFileName,
fileVersion: parsedImage.fileVersion,
fileSize: parsedImage.totalImageSize,
originalUrl,
url: getRepoFirmwareFileUrl(manufacturer, firmwareFileName, BASE_IMAGES_DIR),
imageType: parsedImage.imageType,
manufacturerCode: parsedImage.manufacturerCode,
sha512: computeSHA512(firmwareBuffer),
otaHeaderString: parsedImage.otaHeaderString.replaceAll("\u0000", ""),
...extraMetas,
});
}