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try out etags instead of immutable cache

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proddy
2024-02-11 21:54:31 +01:00
parent 23cfdd9b34
commit 7c97aaf735
3 changed files with 53 additions and 7 deletions
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20
interface/progmem-generator.js
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@@ -2,6 +2,7 @@ import { readdirSync, existsSync, unlinkSync, readFileSync, createWriteStream }
import { resolve, relative, sep } from 'path';
import zlib from 'zlib';
import mime from 'mime-types';
import crypto from 'crypto';
const ARDUINO_INCLUDES = '#include <Arduino.h>\n\n';
const INDENT = ' ';
@@ -11,14 +12,17 @@ const bytesPerLine = 20;
var totalSize = 0;
const generateWWWClass = () =>
`typedef std::function<void(const String& uri, const String& contentType, const uint8_t * content, size_t len)> RouteRegistrationHandler;
`typedef std::function<void(const String& uri, const String& contentType, const uint8_t * content, size_t len, const String& hash)> RouteRegistrationHandler;
// Total size is ${totalSize} bytes
class WWWData {
${indent}public:
${indent.repeat(2)}static void registerRoutes(RouteRegistrationHandler handler) {
${fileInfo
.map((file) => `${indent.repeat(3)}handler("${file.uri}", "${file.mimeType}", ${file.variable}, ${file.size});`)
.map(
(file) =>
`${indent.repeat(3)}handler("${file.uri}", "${file.mimeType}", ${file.variable}, ${file.size}, "${file.hash}");`
)
.join('\n')}
${indent.repeat(2)}}
};
@@ -50,6 +54,12 @@ const writeFile = (relativeFilePath, buffer) => {
writeStream.write('const uint8_t ' + variable + '[] = {');
// const zipBuffer = zlib.brotliCompressSync(buffer, { quality: 1 });
const zipBuffer = zlib.gzipSync(buffer, { level: 9 });
// create sha
const hashSum = crypto.createHash('sha256');
hashSum.update(zipBuffer);
const hash = hashSum.digest('hex');
zipBuffer.forEach((b) => {
if (!(size % bytesPerLine)) {
writeStream.write('\n');
@@ -58,15 +68,19 @@ const writeFile = (relativeFilePath, buffer) => {
writeStream.write('0x' + ('00' + b.toString(16).toUpperCase()).slice(-2) + ',');
size++;
});
if (size % bytesPerLine) {
writeStream.write('\n');
}
writeStream.write('};\n\n');
fileInfo.push({
uri: '/' + relativeFilePath.replace(sep, '/'),
mimeType,
variable,
size
size,
hash
});
// console.log(relativeFilePath + ' (size ' + size + ' bytes)');