examples/index.html

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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
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    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/github-fork-ribbon-css/0.2.3/gh-fork-ribbon.min.css" />
    <title>Online Pickle to JSON Convertor</title>
</head>

<body>
    <section>
        <a class="github-fork-ribbon" href="https://github.com/ewfian/pickleparser" data-ribbon="Fork me on GitHub" title="Fork me on GitHub">Fork me on GitHub</a>
        <h1>Pickle Parser Demo</h1>
        <div>
            <span>Select a pickle file: </span>
            <input type="file" id="file_selector">
        </div>
        <hr />
        <div>Tips: The converted object will be mounted as `window.obj`, which can be inspected using developer tools.</div>
        <pre id="json_result_previewer"><pre>
    </section>
    <script src="https://unpkg.com/pickleparser/dist/index.js"></script>
    <script>
        const fileSelector = document.getElementById('file_selector');
        const jsonResultPreviewer = document.getElementById('json_result_previewer');

        fileSelector.addEventListener('change', function (e) {
            const file = fileSelector.files[0];
            const reader = new FileReader();

            reader.onload = function (event) {
                try {
                    const buffer = new Uint8Array(event.target.result);
                    const parser = new pickleparser.Parser({
                        unpicklingTypeOfSet: 'Set',
                        unpicklingTypeOfDictionary: 'Map',
                    });
                    const obj = parser.parse(buffer);
                    window.obj = obj;
                    const replacer = (_, value) => {
                        if (value instanceof Map) {
                            return Object.fromEntries(value);
                        }
                        if (value instanceof Set) {
                            return Array.from(value);
                        }
                        if (typeof value === 'bigint') {
                            return value.toString();
                        }
                        if (value?.constructor?.name === 'PFunction') {
                            return value.args;
                        }
                        return value;
                    };
                    const json = JSON.stringify(obj, replacer, 4);
                    jsonResultPreviewer.innerText = json;
                } catch (error) {
                    jsonResultPreviewer.innerText = error;
                }
            }

            reader.readAsArrayBuffer(file);
        });
    </script>
</body>
</html>