55 lines
1.5 KiB
JavaScript
55 lines
1.5 KiB
JavaScript
import { deflate, inflate } from '/file=themes/pako.esm.mjs';
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import { toUint8Array, fromUint8Array, toBase64, fromBase64 } from '/file=themes/base64.mjs';
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const base64Serde = {
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serialize: (state) => {
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return toBase64(state, true);
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},
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deserialize: (state) => {
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return fromBase64(state);
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}
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};
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const pakoSerde = {
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serialize: (state) => {
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const data = new TextEncoder().encode(state);
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const compressed = deflate(data, { level: 9 });
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return fromUint8Array(compressed, true);
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},
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deserialize: (state) => {
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const data = toUint8Array(state);
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return inflate(data, { to: 'string' });
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}
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};
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const serdes = {
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base64: base64Serde,
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pako: pakoSerde
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};
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export const serializeState = (state, serde = 'pako') => {
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if (!(serde in serdes)) {
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throw new Error(`Unknown serde type: ${serde}`);
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}
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const json = JSON.stringify(state);
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const serialized = serdes[serde].serialize(json);
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return `${serde}:${serialized}`;
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};
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const deserializeState = (state) => {
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let type, serialized;
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if (state.includes(':')) {
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let tempType;
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[tempType, serialized] = state.split(':');
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if (tempType in serdes) {
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type = tempType;
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} else {
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throw new Error(`Unknown serde type: ${tempType}`);
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}
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} else {
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type = 'base64';
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serialized = state;
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}
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const json = serdes[type].deserialize(serialized);
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return JSON.parse(json);
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}; |