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Improve saving speed by using crc32 instead of sha1 for checksum

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tobspr
2020-08-10 23:31:02 +02:00
parent 9701a143ec
commit 2203d5fc6a
7 changed files with 59 additions and 41 deletions
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14
src/js/webworkers/compression.worker.js
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@@ -1,6 +1,8 @@
import { compressX64 } from "../core/lzstring";
import { globalConfig } from "../core/config";
import { sha1 } from "../core/sensitive_utils.encrypt";
import { compressObject } from "../savegame/savegame_compressor";
import { CRC_PREFIX } from "../core/sensitive_utils.encrypt";
import crc32 from "crc/crc32";
function accessNestedPropertyReverse(obj, keys) {
let result = obj;
@@ -24,9 +26,13 @@ function performJob(job, data) {
case "compressX64": {
return compressX64(data);
}
case "compressFile": {
const checksum = sha1(data.text + salt);
return data.compressionPrefix + compressX64(checksum + data.text);
case "compressObject": {
const optimized = compressObject(data.obj);
const stringified = JSON.stringify(optimized);
const checksum = CRC_PREFIX + crc32(stringified + salt).toString(16);
return data.compressionPrefix + compressX64(checksum + stringified);
}
default:
throw new Error("Webworker: Unknown job: " + job);