308 lines
12 KiB
JavaScript
308 lines
12 KiB
JavaScript
"use strict";
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const $ = id => document.getElementById(id);
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let authorization = null;
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let notes = [];
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let editing = null;
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function notify(message, error = false) {
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const target = $("share-result").open ? $("result-feedback") : $("status");
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target.textContent = message;
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target.dataset.error = String(error);
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target.hidden = false;
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}
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async function api(path, { method = "GET", body, accept = "text/plain" } = {}, auth = authorization) {
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const headers = { Accept: accept };
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if (auth) headers.Authorization = auth;
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const response = await fetch(path, { method, body, headers, credentials: "omit", cache: "no-store" });
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if (!response.ok) {
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const messages = {
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400: "Check the URL and settings. Expiry must be nonnegative and the view limit must be positive.",
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401: "Sign in with the correct username and password.",
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403: "Only the creator can change or delete this share.",
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404: "This share does not exist, has expired, or has reached its view limit.",
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413: "This share is too large for the server.",
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422: "Check the form values and use whole numbers for expiry and views.",
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};
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throw new Error(messages[response.status] || `The request failed (${response.status}). Please try again.`);
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}
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return accept === "application/json" ? response.json() : response.text();
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}
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async function busy(button, action) {
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button.disabled = true;
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try {
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await action();
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} catch (error) {
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notify(error.message, true);
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} finally {
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button.disabled = false;
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}
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}
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function showPanel(id) {
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if (!["compose", "collection", "open"].includes(id)) id = "compose";
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for (const panel of document.querySelectorAll(".panel")) panel.hidden = panel.id !== id;
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for (const link of document.querySelectorAll("[data-panel]")) {
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if (link.dataset.panel === id) link.setAttribute("aria-current", "page");
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else link.removeAttribute("aria-current");
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}
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history.replaceState(null, "", `#${id}`);
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}
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function isUrl(note) {
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return note.paste_type === "UrlV1";
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}
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function sharePath(id, url) {
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return `${url ? "/to/" : "/"}${encodeURIComponent(id)}`;
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}
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function date(value) {
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if (value === null) return "—";
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const parsed = new Date(value * 1000);
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return Number.isNaN(parsed.getTime()) ? String(value) : parsed.toLocaleString();
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}
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function cell(row, text) {
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const td = document.createElement("td");
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td.textContent = text;
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row.append(td);
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return td;
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}
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function action(label, callback, className = "secondary") {
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const button = document.createElement("button");
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button.type = "button";
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button.textContent = label;
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button.className = className;
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button.addEventListener("click", () => busy(button, callback));
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return button;
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}
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function renderNotes() {
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$("note-count").textContent = notes.length;
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$("note-rows").replaceChildren();
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$("refresh").disabled = !authorization;
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const query = $("search").value.toLowerCase();
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const filtered = notes.filter(note => [note.id, note.content, note.language || ""]
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.some(value => value.toLowerCase().includes(query)));
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$("collection-table").hidden = filtered.length === 0;
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$("collection-empty").hidden = filtered.length !== 0;
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$("collection-empty").textContent = !authorization ? "Sign in to see and manage your shares."
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: notes.length === 0 ? "Nothing here yet. Create a share while signed in to start your collection."
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: "No shares match your search.";
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for (const note of filtered) {
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const row = document.createElement("tr");
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const name = cell(row, "");
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const link = document.createElement("a");
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link.href = sharePath(note.id, isUrl(note));
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link.textContent = note.id;
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name.append(link);
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const type = document.createElement("small");
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type.textContent = isUrl(note) ? "Short link" : note.language || "Plain text";
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name.append(type);
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const content = cell(row, note.content.slice(0, 140));
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content.className = "content-preview";
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cell(row, `${note.views} / ${note.max_views ?? "∞"}`);
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cell(row, date(note.created_at));
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cell(row, date(note.updated_at));
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cell(row, note.expiration === null ? "Never" : date(note.expiration));
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const controls = cell(row, "");
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controls.className = "row-actions";
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controls.append(
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action("Edit", () => editNote(note)),
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action("Delete", () => deleteNote(note), "danger"),
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);
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$("note-rows").append(row);
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}
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}
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async function loadNotes() {
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const auth = authorization;
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if (!auth) return;
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const result = await api("/list", { accept: "application/json" }, auth);
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if (authorization !== auth) return;
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notes = result;
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renderNotes();
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}
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function updateEditor() {
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const url = $("kind").value === "url";
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$("kind").disabled = editing !== null;
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$("custom-id").disabled = editing !== null;
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$("new-note").hidden = editing === null;
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$("once-field").hidden = url || editing !== null;
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$("once").disabled = url || editing !== null;
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if (url || editing) $("once").checked = false;
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$("max-views").disabled = $("once").checked;
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if ($("once").checked) $("max-views").value = "1";
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$("language-field").hidden = url;
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$("language").options[0].textContent = editing ? "Keep current language" : "Auto detect";
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$("content-label").textContent = url ? "Destination URL" : "Your text or code";
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$("content").rows = url ? 3 : 15;
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$("content").placeholder = url ? "https://example.com" : "Paste something worth sharing…";
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$("editor-title").textContent = editing ? `Edit ${url ? "link" : "paste"} · ${editing.id}` : "Create a share";
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$("save").textContent = editing ? "Save changes" : url ? "Create short link"
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: $("once").checked ? "Create one-time secret" : "Create share";
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$("ownership-hint").textContent = authorization ? "Saved to your collection."
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: "Sign in to edit or delete this share later.";
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$("expires").placeholder = editing ? "Keep current expiry" : "Never";
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$("edit-hint").hidden = editing === null;
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if (editing) $("edit-hint").textContent = `Current expiry: ${editing.expiration === null ? "never" : date(editing.expiration)}. Leave expiry blank to keep it. Views stay at ${editing.views}.`;
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}
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function resetEditor() {
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editing = null;
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$("language").querySelector("[data-current]")?.remove();
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$("editor-form").reset();
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$("share-result").close();
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updateEditor();
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}
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function editNote(note) {
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resetEditor();
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editing = note;
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$("kind").value = isUrl(note) ? "url" : "note";
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$("custom-id").value = note.id;
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$("content").value = note.content;
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const language = note.language || "";
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if (language && !Array.from($("language").options).some(option => option.value === language)) {
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const current = new Option(`${language} (current)`, language);
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current.dataset.current = "";
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$("language").add(current);
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}
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$("language").value = language;
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$("max-views").value = note.max_views ?? "";
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updateEditor();
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showPanel("compose");
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$("content").focus();
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}
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async function deleteNote(note) {
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if (!window.confirm(`Permanently delete “${note.id}”?`)) return;
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await api(sharePath(note.id, false), { method: "DELETE" });
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if (editing?.id === note.id) resetEditor();
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await loadNotes();
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notify(`Deleted ${note.id}.`);
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}
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function reference(value, url) {
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let id = value.trim();
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if (/^(https?:\/\/|\/)/i.test(id)) {
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const parsed = new URL(id, location.origin);
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if (parsed.origin !== location.origin) throw new Error("Use an ID or a link from this Pastable server.");
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url = parsed.pathname.startsWith("/to/");
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id = decodeURIComponent(parsed.pathname.slice(url ? 4 : 1));
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}
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if (!id || id.includes("/") || ["gui", "list", "once", "to", "static"].includes(id)) {
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throw new Error("Enter a valid share ID or a full Pastable share URL.");
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}
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return { id, url };
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}
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$("login-form").addEventListener("submit", event => {
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event.preventDefault();
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busy(event.submitter, async () => {
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const username = $("username").value;
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const credentials = new TextEncoder().encode(`${username}:${$("password").value}`);
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const auth = `Basic ${btoa(Array.from(credentials, byte => String.fromCharCode(byte)).join(""))}`;
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const result = await api("/list", { accept: "application/json" }, auth);
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if (authorization && authorization !== auth) resetEditor();
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authorization = auth;
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notes = result;
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$("password").value = "";
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$("session-label").textContent = username;
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$("logout").hidden = false;
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$("account").open = false;
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renderNotes();
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updateEditor();
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notify(`Signed in as ${username}. New shares will belong to your account.`);
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});
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});
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$("logout").addEventListener("click", () => {
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authorization = null;
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notes = [];
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$("login-form").reset();
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$("logout").hidden = true;
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$("session-label").textContent = "Anonymous";
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resetEditor();
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renderNotes();
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notify("Signed out.");
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});
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$("editor-form").addEventListener("submit", event => {
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event.preventDefault();
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busy(event.submitter, async () => {
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const current = editing;
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const url = $("kind").value === "url";
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const body = new URLSearchParams();
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body.set(url ? "href" : "content", $("content").value);
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if (!url && $("language").value) body.set("language", $("language").value);
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if ($("expires").value !== "") body.set("expires", $("expires").value);
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if ($("max-views").value !== "") body.set("max_views", $("max-views").value);
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const requested = $("custom-id").value.trim();
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let path = url ? "/to" : $("once").checked ? "/once" : "";
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if (current) path = sharePath(current.id, url);
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else path = requested ? `${path}/${encodeURIComponent(requested)}` : path || "/";
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const result = await api(path, { method: current ? "PUT" : "POST", body });
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const id = current ? current.id : result;
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const link = new URL(sharePath(id, url), location.origin).href;
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$("share-url").value = link;
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$("share-link").href = link;
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$("result-title").textContent = current ? "Changes saved" : "Your share is ready";
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const message = `${current ? "Updated" : "Created"} ${id}.${requested && requested !== id ? " The requested ID was unavailable, so a new one was generated." : ""}`;
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$("result-feedback").textContent = message;
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$("result-feedback").dataset.error = "false";
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$("result-feedback").hidden = false;
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$("share-result").showModal();
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$("share-url").focus();
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$("share-url").select();
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await loadNotes();
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if (current && editing === current) {
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editing = notes.find(note => note.id === id) || editing;
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$("expires").value = "";
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updateEditor();
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}
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});
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});
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$("copy-url").addEventListener("click", event => busy(event.currentTarget, async () => {
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if (!navigator.clipboard) {
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$("share-url").focus();
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$("share-url").select();
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notify("The link is selected. Copy it with your keyboard or context menu.");
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return;
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}
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await navigator.clipboard.writeText($("share-url").value);
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notify("Share link copied.");
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}));
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$("open-form").addEventListener("submit", event => {
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event.preventDefault();
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try {
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const ref = reference($("open-id").value, $("open-kind").value === "url");
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location.assign(sharePath(ref.id, ref.url));
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} catch (error) {
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notify(error.message, true);
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}
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});
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for (const link of document.querySelectorAll("[data-panel]")) {
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link.addEventListener("click", event => {
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event.preventDefault();
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showPanel(link.dataset.panel);
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});
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}
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$("kind").addEventListener("change", updateEditor);
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$("once").addEventListener("change", updateEditor);
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$("new-note").addEventListener("click", resetEditor);
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$("search").addEventListener("input", renderNotes);
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$("refresh").addEventListener("click", event => busy(event.currentTarget, loadNotes));
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window.addEventListener("hashchange", () => showPanel(location.hash.slice(1)));
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showPanel(location.hash.slice(1));
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renderNotes();
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updateEditor();
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