131 lines
4.4 KiB
JavaScript
131 lines
4.4 KiB
JavaScript
function parsePeers(peerMap) {
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if (!peerMap) return []
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return Object.keys(peerMap).map(function (key) {
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if (!Object.prototype.hasOwnProperty.call(peerMap, key)) return null
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var p = peerMap[key]
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return {
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hostname: p.HostName || key,
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ip: (p.TailscaleIPs && p.TailscaleIPs.length) ? p.TailscaleIPs[0] : "",
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online: p.Online || false,
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exitNode: p.ExitNodeOption || false
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}
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}).filter(function (peer) { return peer !== null })
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}
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function makeExitNodeCommand(hostname) {
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if (!isValidExitNodeHostname(hostname)) {
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return null;
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}
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if (hostname === "") {
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return ["tailscale", "set", "--exit-node="];
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}
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return ["tailscale", "set", "--exit-node=" + hostname];
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}
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function findActiveExitNode(peerMap) {
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if (!peerMap) return ""
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for (const key in peerMap) {
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if (!Object.prototype.hasOwnProperty.call(peerMap, key)) continue
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const p = peerMap[key]
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if (p.ExitNode) {
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return p.HostName || key
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}
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}
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return ""
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}
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const clipboardTools = [
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{ argv: ["dms", "cl", "copy"] },
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{ argv: ["wl-copy"] }
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];
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function getClipboardCommands(text) {
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return clipboardTools.map(function (tool) {
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return tool.argv.concat([text]);
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});
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}
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function getStrings() {
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return {
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header: "Tailscale",
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connected: "Connected",
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disconnected: "Disconnected",
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exitNodePrefix: "Exit node: ",
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none: "None",
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copied: function (text) { return "Copied " + text + " to clipboard" },
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clearExitNode: "×",
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setExitNode: "↗",
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invalidExitNodeHostname: "Invalid exit node hostname"
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}
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}
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// Light UI predicates — keep the view thin.
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function shouldShowClearExitNode(currentExitNode) {
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return currentExitNode !== ""
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}
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function isActiveExitNode(currentExitNode, hostname) {
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return currentExitNode === hostname
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}
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// Security: validate hostnames coming from tailscale status JSON.
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// Fail closed on obviously malicious input.
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function isValidExitNodeHostname(hostname) {
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if (typeof hostname !== "string") return false;
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if (hostname === "") return true; // clear command
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// Permissive enough for real Tailscale hostnames while rejecting
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// classic shell metacharacters and control characters.
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return /^[a-zA-Z0-9]([a-zA-Z0-9-_.]{0,62}[a-zA-Z0-9])?$/.test(hostname);
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}
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function parseStatusResult(jsonText) {
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try {
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const data = JSON.parse(jsonText)
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return {
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isConnected: data.BackendState === "Running",
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tailscaleIP: (data.Self && data.Self.TailscaleIPs && data.Self.TailscaleIPs[0]) || "",
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currentExitNode: findActiveExitNode(data.Peer || {}),
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peers: parsePeers(data.Peer || {})
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}
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} catch (e) {
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return { isConnected: false, tailscaleIP: "", currentExitNode: "", peers: [] }
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}
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}
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function buildToggleCommand(isConnected) {
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return isConnected ? ["tailscale", "down"] : ["tailscale", "up"]
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}
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// Single source of truth for the status command used for on-demand and post-action verification.
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function getStatusCommand() {
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return ["tailscale", "status", "--json"]
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}
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function errorMessage(cmd) {
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var messages = {
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"up": "Failed to connect to Tailscale",
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"connect": "Failed to connect to Tailscale",
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"down": "Failed to disconnect from Tailscale",
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"disconnect": "Failed to disconnect from Tailscale",
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"set": "Failed to set exit node",
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"status": "Failed to read Tailscale status",
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"clipboard": "Error copying to clipboard"
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};
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return messages[cmd] || "Tailscale command failed";
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}
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// Central error formatting for the widget. Used by both success and error paths.
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// detail is optional truncated stderr or extra context.
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function formatError(action, detail) {
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var base = errorMessage(action);
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if (detail && detail.length > 0) {
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var truncated = detail.length > 120 ? detail.slice(0, 120) : detail;
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return base + " — " + truncated;
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}
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return base;
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}
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// CommonJS export for Node.js tests (ignored by QML)
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if (typeof module !== "undefined" && module.exports) {
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module.exports = { parsePeers, makeExitNodeCommand, findActiveExitNode, errorMessage, formatError, getStatusCommand, isValidExitNodeHostname, getClipboardCommands, buildToggleCommand, parseStatusResult, getStrings, shouldShowClearExitNode, isActiveExitNode }
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}
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