mirror of
https://git.sr.ht/~ashkeel/strimertul-website
synced 2024-11-21 21:22:21 +00:00
186 lines
5.6 KiB
HTML
186 lines
5.6 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Online log viewer</title>
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<style>
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@import url("https://rsms.me/inter/inter.css");
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@import url("https://iosevka-webfonts.github.io/iosevka/iosevka.css");
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:root {
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--site-bg: #171717;
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--white: #ededed;
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background-color: var(--site-bg);
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color: var(--white);
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font-family: "Inter", "Gill Sans", "Gill Sans MT", "Segoe UI",
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sans-serif;
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}
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html,
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body {
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margin: 0;
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}
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main {
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display: flex;
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}
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#starting {
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height: 100vh;
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flex: 1;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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}
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code {
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display: inline-block;
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font-family: "Iosevka", monospace;
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background-color: #222;
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border-radius: 3px;
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padding: 3px 6px;
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}
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.hidden {
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display: none !important;
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}
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</style>
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</head>
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<body>
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<main id="app">
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<section id="starting">
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<h1>Online log viewer</h1>
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<p>
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Drag a <code>strimertul.log</code> in this window to view it (or click
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anywhere to open a file dialog).<br />
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The contents will not be uploaded anywhere, this webpage is fully
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local.
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</p>
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</section>
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<table id="logs" class="hidden">
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<thead>
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<tr>
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<th>Level</th>
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<th>Time</th>
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<th>Caller</th>
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<th>Message</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody></tbody>
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</table>
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</main>
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<script>
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// @ts-check
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const mainEl = document.getElementById("app");
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const startingEl = document.getElementById("starting");
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const tableEl = document.getElementById("logs");
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if (!mainEl || !startingEl || !tableEl) {
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throw new Error("Missing elements");
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}
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/**
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* Reads a log file and populates a table with the parsed logs.
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*
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* @param {File} file - The log file to be read.
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* @return {void}
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*/
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function readLogFile(file) {
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const reader = new FileReader();
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reader.addEventListener("load", (ev) => {
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const logs =
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ev.target?.result
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?.toString()
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.split("\n")
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.map((line) => line.trim())
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.filter((line) => line.length > 0)
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.map((line) => {
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return makeLog(JSON.parse(line));
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}) || [];
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tableEl?.querySelector("tbody")?.replaceChildren(...logs);
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tableEl?.classList.remove("hidden");
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startingEl?.classList.add("hidden");
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});
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reader.readAsText(file);
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}
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// Click handler (open file select)
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startingEl.addEventListener("click", (ev) => {
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// Create temporary file input and click it
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const fileSelect = document.createElement("input");
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fileSelect.type = "file";
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fileSelect.accept = ".log";
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fileSelect.addEventListener("change", (ev) => {
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if (ev.target instanceof HTMLInputElement && ev.target.files) {
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const file = ev.target.files[0];
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startingEl.innerHTML = "Loading...";
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if (file) {
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readLogFile(file);
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}
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}
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});
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fileSelect.click();
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});
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// Drag and drop handler
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mainEl.addEventListener("dragover", (ev) => {
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ev.preventDefault();
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});
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mainEl.addEventListener("drop", (ev) => {
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ev.preventDefault();
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if (ev.dataTransfer?.files) {
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const file = ev.dataTransfer.files[0];
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startingEl.innerHTML = "Loading...";
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if (file) {
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readLogFile(file);
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}
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}
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});
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/**
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* Creates a log entry as a table row element.
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*
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* @param log - An object representing a log entry with properties level, ts, caller, msg, and data.
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*
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* @returns A table row element representing the log entry.
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*/
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function makeLog(log) {
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const tr = document.createElement("tr");
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const { level, ts, caller, msg, ...data } = log;
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tr.appendChild(makeCell(level));
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tr.appendChild(makeCell(makeDateElement(new Date(ts * 1000))));
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tr.appendChild(makeCell(caller));
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tr.appendChild(makeCell(msg));
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tr.appendChild(makeCell(JSON.stringify(data)));
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return tr;
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}
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/**
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* Creates a new date element with the given date.
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*
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* @param {Date} date - The date to be used for the new date element.
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* @returns {HTMLTimeElement} The newly created date element.
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*/
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function makeDateElement(date) {
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const time = document.createElement("time");
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time.setAttribute("datetime", date.toISOString());
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time.appendChild(document.createTextNode(date.toLocaleTimeString()));
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return time;
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}
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/**
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* Creates a table cell element with the given text as its content.
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*
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* @param {string | HTMLElement} el - A string or a DOM element to be used as the content of the cell.
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* @returns {HTMLTableCellElement} - A table cell element with the given text as its content.
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*/
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function makeCell(el) {
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const td = document.createElement("td");
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if (typeof el === "string") {
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td.appendChild(document.createTextNode(el));
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} else {
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td.appendChild(el);
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}
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return td;
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}
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</script>
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</body>
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</html>
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