mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-13 18:02:24 +00:00
268 lines
9.2 KiB
HTML
268 lines
9.2 KiB
HTML
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<link rel="icon" href="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NCIgaGVpZ2h0PSI0OCIgdmlld0JveD0iMCAwIDkgOCI+PHN0eWxlPi5ve2ZpbGw6I2ZjMH0ucntmaWxsOnJlZH08L3N0eWxlPjxwYXRoIGQ9Ik0wLDcgaDEgdjEgaC0xIHoiIGNsYXNzPSJyIi8+PHBhdGggZD0iTTAsMCBoMSB2NyBoLTEgeiIgY2xhc3M9Im8iLz48cGF0aCBkPSJNMiwwIGgxIHY4IGgtMSB6IiBjbGFzcz0ibyIvPjxwYXRoIGQ9Ik00LDAgaDEgdjggaC0xIHoiIGNsYXNzPSJvIi8+PHBhdGggZD0iTTYsMCBoMSB2OCBoLTEgeiIgY2xhc3M9Im8iLz48cGF0aCBkPSJNOCwzLjI1IGgxIHYxLjUgaC0xIHoiIGNsYXNzPSJvIi8+PC9zdmc+">
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<title>ClickHouse Binary Viewer</title>
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.css" />
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<style type="text/css">
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html, body, #space {
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width: 100%;
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height: 100%;
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padding: 0;
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margin: 0;
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}
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#space {
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background: #111;
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image-rendering: pixelated;
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}
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#error {
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display: none;
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position: absolute;
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z-index: 1001;
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bottom: max(5%, 1em);
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left: 50%;
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transform: translate(-50%, 0);
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background: #300;
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color: white;
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font-family: monospace;
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white-space: pre-wrap;
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font-size: 16pt;
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padding: 1em;
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min-width: 50%;
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max-width: 80%;
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}
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.leaflet-fade-anim .leaflet-popup {
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transition: none;
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font-family: monospace;
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}
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.leaflet-control-attribution {
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font-size: 12pt;
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}
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</style>
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</head>
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<body>
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<div id="space"></div>
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<div id="error"></div>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.js"></script>
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<script>
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let host = 'http://localhost:8123/';
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let user = 'default';
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let password = '';
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let add_http_cors_header = true;
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/// If it is hosted on server, assume that it is the address of ClickHouse.
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if (location.protocol != 'file:') {
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host = location.origin;
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user = 'default';
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add_http_cors_header = false;
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}
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let map = L.map('space', {
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crs: L.CRS.Simple,
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center: [-512, 512],
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maxBounds: [[128, -128], [-1152, 1152]],
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zoom: 0,
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});
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let cached_tiles = {};
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async function render(coords, tile) {
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const sql = `
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WITH
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bitShiftLeft(1::UInt64, 5 - {z:UInt8})::UInt64 AS zoom_factor,
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number MOD 1024 AS tile_x,
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number DIV 1024 AS tile_y,
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(zoom_factor * (tile_x + {x:UInt16} * 1024))::UInt16 AS x,
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(zoom_factor * (tile_y + {y:UInt16} * 1024))::UInt16 AS y,
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mortonEncode(x, y) AS addr,
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extract(demangle(addressToSymbol(addr)), '^[^<]+') AS name,
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(empty(name) ? 0 : sipHash64(name)) AS hash,
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hash MOD 256 AS r, hash DIV 256 MOD 256 AS g, hash DIV 65536 MOD 256 AS b
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SELECT r::UInt8, g::UInt8, b::UInt8
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FROM numbers_mt(1024*1024)
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ORDER BY number`;
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const key = `${coords.z}-${coords.x}-${coords.y}`;
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let buf = cached_tiles[key];
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if (!buf) {
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let url = `${host}?default_format=RowBinary&allow_introspection_functions=1`;
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if (add_http_cors_header) {
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// For debug purposes, you may set add_http_cors_header from a browser console
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url += '&add_http_cors_header=1';
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}
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if (user) {
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url += `&user=${encodeURIComponent(user)}`;
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}
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if (password) {
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url += `&password=${encodeURIComponent(password)}`;
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}
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url += `¶m_z=${coords.z}¶m_x=${coords.x}¶m_y=${coords.y}`;
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url += `&enable_http_compression=1&network_compression_method=zstd&network_zstd_compression_level=6`;
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const response = await fetch(url, { method: 'POST', body: sql });
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if (!response.ok) {
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const text = await response.text();
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let err = document.getElementById('error');
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err.textContent = text;
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err.style.display = 'block';
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return;
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}
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buf = await response.arrayBuffer();
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cached_tiles[key] = buf;
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}
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let ctx = tile.getContext('2d');
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let image = ctx.createImageData(1024, 1024);
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let arr = new Uint8ClampedArray(buf);
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for (let i = 0; i < 1024 * 1024; ++i) {
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image.data[i * 4 + 0] = arr[i * 3 + 0];
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image.data[i * 4 + 1] = arr[i * 3 + 1];
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image.data[i * 4 + 2] = arr[i * 3 + 2];
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image.data[i * 4 + 3] = 255;
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}
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ctx.putImageData(image, 0, 0, 0, 0, 1024, 1024);
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let err = document.getElementById('error');
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err.style.display = 'none';
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}
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L.GridLayer.ClickHouse = L.GridLayer.extend({
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createTile: function(coords, done) {
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let tile = L.DomUtil.create('canvas', 'leaflet-tile');
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tile.width = 1024;
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tile.height = 1024;
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if (coords.x < 0 || coords.y < 0 || coords.x >= Math.pow(2, coords.z) || coords.y >= Math.pow(2, coords.z)) return tile;
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render(coords, tile).then(err => done(err, tile));
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return tile;
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}
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});
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let layer = new L.GridLayer.ClickHouse({
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tileSize: 1024,
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minZoom: 0,
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maxZoom: 10,
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minNativeZoom: 0,
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maxNativeZoom: 5,
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attribution: '© ClickHouse, Inc.'
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});
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layer.addTo(map);
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map.attributionControl.setPrefix('<a href="https://github.com/ClickHouse/ClickHouse/">About</a>');
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function latLngToPixel(latlng) {
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return { x: ((latlng.lng / 1024) * 32768)|0, y: ((-latlng.lat / 1024) * 32768)|0 };
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}
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function pixelToLatLng(pixel) {
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return { lat: (-pixel.y - 0.5) / 32768 * 1024, lng: (pixel.x + 0.5) / 32768 * 1024 };
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}
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let popup = L.popup({maxWidth: '100%'});
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let current_requested_addr = '';
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function updateHistory() {
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const state = {
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zoom: map.getZoom(),
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center: latLngToPixel(map.getCenter()),
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};
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let query = `?zoom=${state.zoom}&x=${state.center.x}&y=${state.center.y}`;
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if (popup.isOpen() && map.getBounds().contains(popup.getLatLng())) {
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state.popup = latLngToPixel(popup.getLatLng());
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query += `&px=${state.popup.x}&py=${state.popup.y}`;
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}
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history.replaceState(state, '', query);
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}
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window.onpopstate = function(event) {
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const state = event.state;
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if (!state) {
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return;
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}
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map.setView(pixelToLatLng(state.center), state.zoom);
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if (state.popup) {
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showPopup(state.popup.x, state.popup.y);
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}
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};
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if (window.location.search) {
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const params = new URLSearchParams(window.location.search);
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map.setView(pixelToLatLng({x: params.get('x')|0, y: params.get('y')|0}), params.get('zoom'));
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if (params.get('px') !== null && params.get('py') !== null) {
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showPopup(params.get('px')|0, params.get('py')|0);
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}
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}
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function showPopup(x, y) {
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const xn = BigInt(x);
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const yn = BigInt(y);
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let addr_int = 0n;
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for (let bit = 0n; bit < 16n; ++bit) {
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addr_int |= ((xn >> bit) & 1n) << (bit * 2n);
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addr_int |= ((yn >> bit) & 1n) << (1n + bit * 2n);
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}
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current_requested_addr = addr_int;
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const addr_hex = '0x' + addr_int.toString(16);
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const response = fetch(
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`http://localhost:8123/?default_format=JSON`,
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{
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method: 'POST',
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body: `SELECT encodeXMLComponent(demangle(addressToSymbol(${addr_int}::UInt64))) AS name,
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encodeXMLComponent(addressToLine(${addr_int}::UInt64)) AS line`
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}).then(response => response.json().then(o => {
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let name = o.rows ? o.data[0].name : 'nothing';
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let line = o.rows ? o.data[0].line : '';
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if (addr_int == current_requested_addr) {
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popup.setContent(`<p><b>${addr_hex}</b></p><p>${name}</p><p>${line}</p>`);
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}
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}));
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popup
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.setLatLng(pixelToLatLng({x: x, y: y}))
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.setContent(addr_hex)
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.openOn(map);
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}
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map.on('click', e => {
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const {x, y} = latLngToPixel(e.latlng);
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if (x < 0 || x >= 32768 || y < 0 || y >= 32768) return;
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showPopup(x, y);
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updateHistory();
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});
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map.on('moveend', e => updateHistory());
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</script>
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</body>
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</html>
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