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background.js
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const TICK_TIME = 1000; // update every second
const BLOCKABLE_URL = /^(http|file|about)/i;
const CLOCKABLE_URL = /^(http|file)/i;
function log(message) { console.log("[LBNG] " + message); }
function warn(message) { console.warn("[LBNG] " + message); }
var gStorage = browser.storage.local;
var gIsAndroid = false;
var gGotOptions = false;
var gOptions = {};
var gNumSets;
var gTabs = [];
var gSetCounted = [];
var gSavedTimeData = [];
var gRegExps = [];
var gFocusWindowId = 0;
var gOverrideIcon = false;
var gSaveSecsCount = 0;
// Create (precompile) regular expressions
//
function createRegExps() {
// Create new RegExp objects
for (let set = 1; set <= gNumSets; set++) {
gRegExps[set] = {};
let blockRE = gOptions[`regexpBlock${set}`] || gOptions[`blockRE${set}`];
gRegExps[set].block = blockRE ? new RegExp(blockRE, "i") : null;
let allowRE = gOptions[`regexpAllow${set}`] || gOptions[`allowRE${set}`];
gRegExps[set].allow = allowRE ? new RegExp(allowRE, "i") : null;
let keywordRE = gOptions[`keywordRE${set}`];
gRegExps[set].keyword = keywordRE ? new RegExp(keywordRE, "i") : null;
}
}
// Test URL against block/allow regular expressions
//
function testURL(pageURL, blockRE, allowRE) {
return (blockRE && blockRE.test(pageURL)
&& !(allowRE && allowRE.test(pageURL)));
}
// Refresh menus
//
function refreshMenus() {
if (!browser.menus) {
return; // no support for menus!
}
browser.menus.removeAll();
let context = gOptions["contextMenu"] ? "all" : "browser_action";
let contexts = gOptions["toolsMenu"] ? [context, "tools_menu"] : [context];
// Options
browser.menus.create({
id: "options",
title: "Options",
contexts: contexts
});
// Lockdown
browser.menus.create({
id: "lockdown",
title: "Lockdown",
contexts: contexts
});
// Override
browser.menus.create({
id: "override",
title: "Override",
contexts: contexts
});
// Statistics
browser.menus.create({
id: "stats",
title: "Statistics",
contexts: contexts
});
browser.menus.create({
type: "separator",
contexts: [context] // never in tools menu
});
// Add Site
browser.menus.create({
id: "addSite",
title: "Add Site",
contexts: [context] // never in tools menu
});
// Add Site submenu
for (let set = 1; set <= gNumSets; set++) {
let title = `Add Site to Block Set ${set}`;
let setName = gOptions[`setName${set}`];
if (setName) {
title += ` (${setName})`;
}
browser.menus.create({
id: `addSite-${set}`,
parentId: "addSite",
title: title,
contexts: contexts
});
}
}
// Retrieve options from storage
//
function retrieveOptions(update) {
//log("retrieveOptions: " + update);
browser.storage.local.get("sync").then(onGotSync, onError);
function onGotSync(options) {
gStorage = options["sync"]
? browser.storage.sync
: browser.storage.local;
gStorage.get().then(onGot, onError);
}
function onGot(options) {
// Copy retrieved options (exclude timedata if update)
for (let option in options) {
if (!update || !/^timedata/.test(option)) {
gOptions[option] = options[option];
}
}
gGotOptions = true;
cleanOptions(gOptions);
cleanTimeData(gOptions);
gNumSets = +gOptions["numSets"];
createRegExps();
refreshMenus();
loadSiteLists();
updateIcon();
// Keep track of saved time data to avoid unnecessary writes
for (let set = 1; set <= gNumSets; set++) {
gSavedTimeData[set] = gOptions[`timedata${set}`].toString();
}
}
function onError(error) {
gGotOptions = false;
warn("Cannot get options: " + error);
}
}
// Load lists of sites if URLs specified
//
function loadSiteLists() {
//log("loadSiteLists");
let time = Date.now();
for (let set = 1; set <= gNumSets; set++) {
// Get sites for block set from HTTP source (if specified)
let sitesURL = gOptions[`sitesURL${set}`];
if (sitesURL) {
sitesURL = sitesURL.replace(/\$S/, set).replace(/\$T/, time);
try {
let req = new XMLHttpRequest();
req.set = set;
req.open("GET", sitesURL, true);
req.overrideMimeType("text/plain");
req.onload = onLoad;
req.send();
} catch (error) {
warn("Cannot load sites from URL: " + sitesURL);
}
}
}
function onLoad(event) {
let req = event.target;
if (req.readyState == XMLHttpRequest.DONE && req.status == 200) {
let set = req.set;
let sites = req.responseText;
sites = sites.replace(/\s+/g, " ").replace(/(^ +)|( +$)|(\w+:\/+)/g, "");
sites = sites.split(" ").sort().join(" "); // sort alphabetically
// Get regular expressions to match sites
let regexps = getRegExpSites(sites, gOptions["matchSubdomains"]);
// Update options
gOptions[`sites${set}`] = sites;
gOptions[`blockRE${set}`] = regexps.block;
gOptions[`allowRE${set}`] = regexps.allow;
gOptions[`keywordRE${set}`] = regexps.keyword;
createRegExps();
// Save updated options to local storage
let options = {};
options[`sites${set}`] = sites;
options[`blockRE${set}`] = regexps.block;
options[`allowRE${set}`] = regexps.allow;
options[`keywordRE${set}`] = regexps.keyword;
gStorage.set(options).catch(
function (error) { warn("Cannot set options: " + error); }
);
}
}
}
// Save time data to storage
//
function saveTimeData() {
//log("saveTimeData");
if (!gGotOptions) {
return;
}
let options = {};
let touched = false;
for (let set = 1; set <= gNumSets; set++) {
let timedata = gOptions[`timedata${set}`];
if (gSavedTimeData[set] != timedata.toString()) {
options[`timedata${set}`] = timedata;
gSavedTimeData[set] = timedata.toString();
touched = true;
}
}
if (touched) {
gStorage.set(options).catch(
function (error) { warn("Cannot save time data: " + error); }
);
}
}
// Restart time data
//
function restartTimeData(set) {
//log("restartTimeData: " + set);
if (!gGotOptions || set < 1 || set > gNumSets) {
return;
}
// Get current time in seconds
let now = Math.floor(Date.now() / 1000);
if (!set) {
for (set = 1; set <= gNumSets; set++) {
gOptions[`timedata${set}`][0] = now;
gOptions[`timedata${set}`][1] = 0;
}
} else {
gOptions[`timedata${set}`][0] = now;
gOptions[`timedata${set}`][1] = 0;
}
saveTimeData();
}
// Update ID of focused window
//
function updateFocusedWindowId() {
if (!browser.windows) {
return; // no support for windows!
}
browser.windows.getCurrent().then(
function (win) {
gFocusWindowId = win.focused ? win.id : browser.windows.WINDOW_ID_NONE;
},
function (error) {
warn("Cannot get current window: " + error);
}
);
}
// Process tabs: update time spent and check for blocks
//
function processTabs(active) {
//log("processTabs: " + active);
gSetCounted = []; // reset
if (active) {
// Process only active tabs
browser.tabs.query({ active: true }).then(onGot, onError);
} else {
// Process all tabs
browser.tabs.query({}).then(onGot, onError);
}
function onGot(tabs) {
for (let tab of tabs) {
let focus = tab.active && (!gFocusWindowId || tab.windowId == gFocusWindowId);
// Force update of time spent on this page
clockPageTime(tab.id, false, false);
clockPageTime(tab.id, true, focus);
let blocked = checkTab(tab.id, tab.url, true);
if (!blocked && tab.active) {
updateTimer(tab.id);
}
}
}
function onError(error) {
warn("Cannot get tabs: " + error);
}
}
// Check the URL of a tab and applies block if necessary (returns true if blocked)
//
function checkTab(id, url, isRepeat) {
//log("checkTab: " + id + " " + url + " " + isRepeat);
function isSameHost(host1, host2) {
return (host1 == host2)
|| (host1 == "www." + host2)
|| (host2 == "www." + host1);
}
// Quick exit for about:blank and moz-extension
if (url == "about:blank" || url.startsWith("moz-extension")) {
return false; // not blocked
}
if (!gTabs[id]) {
// Create object to track this tab
gTabs[id] = { allowedHost: null, allowedPath: null };
}
gTabs[id].blockable = BLOCKABLE_URL.test(url);
gTabs[id].clockable = CLOCKABLE_URL.test(url);
gTabs[id].url = url;
// Quick exit for non-blockable URLs
if (!gTabs[id].blockable) {
return false; // not blocked
}
// Get parsed URL for this page
let parsedURL = getParsedURL(url);
// Check for allowed host/path
let ah = isSameHost(gTabs[id].allowedHost, parsedURL.host);
let ap = !gTabs[id].allowedPath || (gTabs[id].allowedPath == parsedURL.path);
if (ah && ap) {
return false; // not blocked
} else {
gTabs[id].allowedHost = null;
gTabs[id].allowedPath = null;
}
// Get current time/date
let timedate = new Date();
// Get current time in seconds
let now = Math.floor(Date.now() / 1000);
// Get override end time
let overrideEndTime = gOptions["oret"];
gTabs[id].secsLeft = Infinity;
for (let set = 1; set <= gNumSets; set++) {
// Get URL of page (possibly with hash part)
let pageURL = parsedURL.page;
let pageURLWithHash = parsedURL.page;
if (parsedURL.hash != null) {
pageURLWithHash += "#" + parsedURL.hash;
if (/^!/.test(parsedURL.hash) || !gOptions[`ignoreHash${set}`]) {
pageURL = pageURLWithHash;
}
}
// Get regular expressions for matching sites to block/allow
let blockRE = gRegExps[set].block;
if (!blockRE) continue; // no block for this set
let allowRE = gRegExps[set].allow;
let keywordRE = gRegExps[set].keyword;
// Get options for preventing access to about:addons and about:support
let prevAddons = gOptions[`prevAddons${set}`];
let prevSupport = gOptions[`prevSupport${set}`];
let prevDebugging = gOptions[`prevDebugging${set}`];
// Test URL against block/allow regular expressions
if (testURL(pageURL, blockRE, allowRE)
|| (prevAddons && /^about:addons/i.test(pageURL))
|| (prevSupport && /^about:support/i.test(pageURL))
|| (prevDebugging && /^about:debugging/i.test(pageURL))) {
// Get options for this set
let timedata = gOptions[`timedata${set}`];
let times = gOptions[`times${set}`];
let minPeriods = getMinPeriods(times);
let limitMins = gOptions[`limitMins${set}`];
let limitPeriod = gOptions[`limitPeriod${set}`];
let limitOffset = gOptions[`limitOffset${set}`];
let periodStart = getTimePeriodStart(now, limitPeriod, limitOffset);
let conjMode = gOptions[`conjMode${set}`];
let days = gOptions[`days${set}`];
let blockURL = gOptions[`blockURL${set}`];
let applyFilter = gOptions[`applyFilter${set}`];
let filterName = gOptions[`filterName${set}`];
let activeBlock = gOptions[`activeBlock${set}`];
let allowOverride = gOptions[`allowOverride${set}`];
let showTimer = gOptions[`showTimer${set}`];
// Check day
let onSelectedDay = days[timedate.getDay()];
// Check time periods
let secsLeftBeforePeriod = Infinity;
if (onSelectedDay && times) {
// Get number of minutes elapsed since midnight
let mins = timedate.getHours() * 60 + timedate.getMinutes();
// Check each time period in turn
for (let mp of minPeriods) {
if (mins >= mp.start && mins < mp.end) {
secsLeftBeforePeriod = 0;
} else if (mins < mp.start) {
// Compute exact seconds before this time period starts
let secs = (mp.start - mins) * 60 - timedate.getSeconds();
if (secs < secsLeftBeforePeriod) {
secsLeftBeforePeriod = secs;
}
}
}
}
// Check time limit
let secsLeftBeforeLimit = Infinity;
if (onSelectedDay && limitMins && limitPeriod) {
// Compute exact seconds before this time limit expires
secsLeftBeforeLimit = limitMins * 60;
if (timedata[2] == periodStart) {
let secs = secsLeftBeforeLimit - timedata[3];
secsLeftBeforeLimit = Math.max(0, secs);
}
}
let withinTimePeriods = (secsLeftBeforePeriod == 0);
let afterTimeLimit = (secsLeftBeforeLimit == 0);
// Check lockdown condition
let lockdown = (timedata[4] > now);
// Check override condition
let override = (overrideEndTime > now) && allowOverride;
// Determine whether this page should now be blocked
let doBlock = lockdown
|| (!conjMode && (withinTimePeriods || afterTimeLimit))
|| (conjMode && (withinTimePeriods && afterTimeLimit));
// Redirect page if all relevant block conditions are fulfilled
if (!override && doBlock && (!isRepeat || activeBlock)) {
// Get final URL for block page
blockURL = blockURL.replace(/\$S/g, set).replace(/\$U/g, pageURLWithHash);
if (keywordRE) {
// Check for keyword(s) before blocking
let message = {
type: "keyword",
keywordRE: keywordRE
};
browser.tabs.sendMessage(id, message).then(
function (keyword) {
if (keyword) {
// Redirect page
browser.tabs.update(id, { url: blockURL });
}
},
function (error) { }
);
} else if (applyFilter) {
// Send message to tab
let message = {
type: "filter",
name: filterName
};
browser.tabs.sendMessage(id, message).catch(function (error) { });
} else {
// Redirect page
browser.tabs.update(id, { url: blockURL });
return true; // blocked
}
}
// Update seconds left before block
let secsLeft = conjMode
? (secsLeftBeforePeriod + secsLeftBeforeLimit)
: Math.min(secsLeftBeforePeriod, secsLeftBeforeLimit);
if (override) {
secsLeft = Math.max(secsLeft, overrideEndTime - now);
}
if (showTimer && secsLeft < gTabs[id].secsLeft) {
gTabs[id].secsLeft = secsLeft;
gTabs[id].secsLeftSet = set;
}
}
}
checkWarning(id);
return false; // not blocked
}
// Check for warning message (and display message if needed)
//
function checkWarning(id) {
let set = gTabs[id].secsLeftSet;
let warnSecs = gOptions["warnSecs"];
let canWarn = !gOptions["warnImmediate"] || gOptions[`activeBlock${set}`]
if (warnSecs && canWarn) {
let secsLeft = Math.round(gTabs[id].secsLeft);
if (secsLeft > warnSecs) {
gTabs[id].warned = false;
} else if (secsLeft > 0 && !gTabs[id].warned) {
gTabs[id].warned = true;
// Send message to tab
let text = `Sites in Block Set ${set}`;
let setName = gOptions[`setName${set}`];
if (setName) {
text += ` (${setName})`;
}
text += ` will be blocked in ${secsLeft} seconds.`;
let message = {
type: "alert",
text: text
};
browser.tabs.sendMessage(id, message).catch(
function (error) { gTabs[id].warned = false; }
);
}
}
}
// Clock time spent on page
//
function clockPageTime(id, open, focus) {
if (!gTabs[id] || !gTabs[id].clockable) {
return;
}
// Get current time in milliseconds
let time = Date.now();
// Clock time during which page has been open
let secsOpen = 0;
if (open) {
if (gTabs[id].openTime == undefined) {
// Set open time for this page
gTabs[id].openTime = time;
}
} else {
if (gTabs[id].openTime != undefined) {
// Calculate seconds spent on this page (while open)
secsOpen = ((time - gTabs[id].openTime) / 1000);
gTabs[id].openTime = undefined;
}
}
// Clock time during which page has been focused
let secsFocus = 0;
if (focus) {
if (gTabs[id].focusTime == undefined) {
// Set focus time for this page
gTabs[id].focusTime = time;
}
} else {
if (gTabs[id].focusTime != undefined) {
// Calculate seconds spent on this page (while focused)
secsFocus = ((time - gTabs[id].focusTime) / 1000);
gTabs[id].focusTime = undefined;
}
}
// Update time data if necessary
if (secsOpen > 0 || secsFocus > 0) {
updateTimeData(gTabs[id].url, secsOpen, secsFocus);
}
}
// Update time data for specified page
//
function updateTimeData(url, secsOpen, secsFocus) {
//log("updateTimeData: " + url + " " + secsOpen + " " + secsFocus);
// Get parsed URL for this page
let parsedURL = getParsedURL(url);
let pageURL = parsedURL.page;
// Get current time/date
let timedate = new Date();
// Get current time in seconds
let now = Math.floor(Date.now() / 1000);
for (let set = 1; set <= gNumSets; set++) {
// Get regular expressions for matching sites to block/allow
let blockRE = gRegExps[set].block;
if (!blockRE) continue; // no block for this set
let allowRE = gRegExps[set].allow;
// Test URL against block/allow regular expressions
if (testURL(pageURL, blockRE, allowRE)) {
// Get options for this set
let timedata = gOptions[`timedata${set}`];
let countFocus = gOptions[`countFocus${set}`];
let times = gOptions[`times${set}`];
let minPeriods = getMinPeriods(times);
let limitPeriod = gOptions[`limitPeriod${set}`];
let limitOffset = gOptions[`limitOffset${set}`];
let periodStart = getTimePeriodStart(now, limitPeriod, limitOffset);
let conjMode = gOptions[`conjMode${set}`];
let days = gOptions[`days${set}`];
// Avoid overcounting time for non-focused tabs
if (!countFocus && gSetCounted[set]) {
continue;
} else {
gSetCounted[set] = true;
}
// Reset time data if currently invalid
if (!Array.isArray(timedata) || timedata.length != 5) {
timedata = [now, 0, 0, 0, 0];
}
// Get number of seconds spent on page (focused or open)
let secsSpent = countFocus ? secsFocus : secsOpen;
// Update data for total time spent
timedata[1] = +timedata[1] + secsSpent;
// Determine whether we should count time spent on page in
// specified time period (we should only count time on selected
// days -- and in conjunction mode, only within time periods)
let countTimeSpentInPeriod = days[timedate.getDay()];
if (countTimeSpentInPeriod && conjMode) {
countTimeSpentInPeriod = false;
// Get number of minutes elapsed since midnight
let mins = timedate.getHours() * 60 + timedate.getMinutes();
// Check each time period in turn
for (let mp of minPeriods) {
if (mins >= mp.start && mins < mp.end) {
countTimeSpentInPeriod = true;
}
}
}
// Update data for time spent in specified time period
if (countTimeSpentInPeriod && periodStart > 0 && timedata[2] >= 0) {
if (timedata[2] != periodStart) {
// We've entered a new time period, so start new count
timedata[2] = periodStart;
timedata[3] = secsSpent;
} else {
// We haven't entered a new time period, so keep counting
timedata[3] = +timedata[3] + secsSpent;
}
}
// Update time data for this set
gOptions[`timedata${set}`] = timedata;
}
}
}
// Update timer
//
function updateTimer(id) {
if (!gTabs[id] || !gTabs[id].clockable) {
return;
}
// Send message to tab
let secsLeft = gTabs[id].secsLeft;
let message = {
type: "timer",
size: gOptions["timerSize"],
location: gOptions["timerLocation"]
};
if (!gOptions["timerVisible"] || secsLeft == undefined || secsLeft == Infinity) {
message.text = null; // hide timer
} else {
message.text = formatTime(secsLeft); // show timer with time left
}
browser.tabs.sendMessage(id, message).catch(function (error) { });
// Set tooltip
if (!gIsAndroid) {
if (secsLeft == undefined || secsLeft == Infinity) {
browser.browserAction.setTitle({ title: null, tabId: id });
} else {
let title = "LeechBlock [" + formatTime(secsLeft) + "]"
browser.browserAction.setTitle({ title: title, tabId: id });
}
}
// Set badge timer (if option selected)
if (!gIsAndroid && gOptions["timerBadge"] && secsLeft < 600) {
let m = Math.floor(secsLeft / 60);
let s = Math.floor(secsLeft) % 60;
let text = m + ":" + ((s < 10) ? "0" + s : s);
browser.browserAction.setBadgeBackgroundColor({ color: "#666" });
browser.browserAction.setBadgeText({ text: text, tabId: id });
} else {
browser.browserAction.setBadgeText({ text: "", tabId: id });
}
}
// Update button icon
//
function updateIcon() {
if (gIsAndroid) {
return; // icon not supported yet
}
// Get current time in seconds
let now = Math.floor(Date.now() / 1000);
// Get override end time
let overrideEndTime = gOptions["oret"];
// Change icon only if override status has changed
if (!gOverrideIcon && overrideEndTime > now) {
browser.browserAction.setIcon({ path: OVERRIDE_ICON });
gOverrideIcon = true;
} else if (gOverrideIcon && overrideEndTime <= now) {
browser.browserAction.setIcon({ path: DEFAULT_ICON });
gOverrideIcon = false;
}
}
// Create info for blocking/delaying page
//
function createBlockInfo(url, page = undefined) {
// Get theme
let theme = gOptions["theme"];
// Get parsed URL
let parsedURL = getParsedURL(url);
if (parsedURL.args == null) {
warn("Cannot create block info: not enough arguments in URL.");
return { theme };
} else if (parsedURL.args != null && page !== undefined) {
const msg = parsedURL.args[0];
const set = parsedURL.args[1];
let blockedURL = parsedURL.args[2];
let unblockTime = getUnblockTime(set);
if (unblockTime != null) {
// Convert to string
if (unblockTime.getDate() == new Date().getDate()) {
// Same day: show time only
unblockTime = unblockTime.toLocaleTimeString();
} else {
// Different day: show date and time
unblockTime = unblockTime.toLocaleString();
}
}
return { theme, msg, unblockTime, blockedURL };
}
// Get block set and URL (including hash part) of blocked page
let blockedSet = parsedURL.args.shift();
let blockedSetName = gOptions[`setName${blockedSet}`];
let blockedURL = parsedURL.query.substring(blockedSet.length + 2); // retains original separators (& or ;)
if (parsedURL.hash != null) {
blockedURL += "#" + parsedURL.hash;
}
// Get unblock time for block set
let unblockTime = getUnblockTime(blockedSet);
if (unblockTime != null) {
// Convert to string
if (unblockTime.getDate() == new Date().getDate()) {
// Same day: show time only
unblockTime = unblockTime.toLocaleTimeString();
} else {
// Different day: show date and time
unblockTime = unblockTime.toLocaleString();
}
}
// Get delaying time for block set
let delaySecs = gOptions[`delaySecs${blockedSet}`];
// Get reloading time (if specified)
let reloadSecs = gOptions[`reloadSecs${blockedSet}`];
return {
theme: theme,
blockedSet: blockedSet,
blockedSetName: blockedSetName,
blockedURL: blockedURL,
unblockTime: unblockTime,
delaySecs: delaySecs,
reloadSecs: reloadSecs
};
}
// Return time when blocked sites will be unblocked (as Date object)
//
function getUnblockTime(set) {
if (!gGotOptions || set < 1 || set > gNumSets) {
return null;
}
// Get current time/date
let timedate = new Date();
// Get current time in seconds
let now = Math.floor(Date.now() / 1000);
// Get options for this set
let timedata = gOptions[`timedata${set}`];
let times = gOptions[`times${set}`];
let minPeriods = getMinPeriods(times);
let limitMins = gOptions[`limitMins${set}`];
let limitPeriod = gOptions[`limitPeriod${set}`];
let limitOffset = gOptions[`limitOffset${set}`];
let periodStart = getTimePeriodStart(now, limitPeriod, limitOffset);
let conjMode = gOptions[`conjMode${set}`];
let days = gOptions[`days${set}`];
// Check for valid time data
if (!Array.isArray(timedata) || timedata.length != 5) {
return null;
}
// Check for 24/7 block
if (times == ALL_DAY_TIMES && allTrue(days) && !conjMode) {
return null;
}
// Check for lockdown
if (now < timedata[4]) {
// Return end time for lockdown
return new Date(timedata[4] * 1000);
}
// Get number of minutes elapsed since midnight
let mins = timedate.getHours() * 60 + timedate.getMinutes();
// Create list of time periods for today and following seven days
let day = timedate.getDay();
let allMinPeriods = [];
for (let i = 0; i <= 7; i++) {
if (days[(day + i) % 7]) {
let offset = (i * 1440);
for (let mp of minPeriods) {
// Create new time period with offset
let mp1 = {
start: (mp.start + offset),
end: (mp.end + offset)
};
if (allMinPeriods.length == 0) {
// Add new time period
allMinPeriods.push(mp1);
} else {
let mp0 = allMinPeriods[allMinPeriods.length - 1];
if (mp1.start <= mp0.end) {
// Merge time period into previous one
mp0.end = mp1.end;
} else {
// Add new time period
allMinPeriods.push(mp1);
}
}
}
}
}
let timePeriods = (times != "");
let timeLimit = (limitMins && limitPeriod);
if (timePeriods && !timeLimit) {
// Case 1: within time periods (no time limit)
// Find relevant time period
for (let mp of allMinPeriods) {
if (mins >= mp.start && mins < mp.end) {
// Return end time for time period
return new Date(
timedate.getFullYear(),
timedate.getMonth(),
timedate.getDate(),
0, mp.end);
}
}
} else if (!timePeriods && timeLimit) {
// Case 2: after time limit (no time periods)
// Return end time for current time limit period
return new Date(timedata[2] * 1000 + limitPeriod * 1000);
} else if (timePeriods && timeLimit) {
if (conjMode) {
// Case 3: within time periods AND after time limit
// Find relevant time period
for (let mp of allMinPeriods) {
if (mins >= mp.start && mins < mp.end) {
// Return the earlier of the two end times
let td1 = new Date(
timedate.getFullYear(),
timedate.getMonth(),
timedate.getDate(),
0, mp.end);
let td2 = new Date(timedata[2] * 1000 + limitPeriod * 1000);
return (td1 < td2) ? td1 : td2;
}
}
} else {
// Case 4: within time periods OR after time limit
// Determine whether time limit was exceeded
let afterTimeLimit = (timedata[2] == periodStart)
&& (timedata[3] >= (limitMins * 60));
if (afterTimeLimit) {
// Check against end time for current time limit period instead
let td = new Date(timedata[2] * 1000 + limitPeriod * 1000);
mins = td.getHours() * 60 + td.getMinutes();
}
// Find relevant time period
for (let mp of allMinPeriods) {
if (mins >= mp.start && mins < mp.end) {
// Return end time for time period
return new Date(
timedate.getFullYear(),
timedate.getMonth(),
timedate.getDate(),
0, mp.end);
}
}
}
}
return null;
}
// Apply lockdown for specified set
//
function applyLockdown(set, endTime) {
//log("applyLockdown: " + set + " " + endTime);
if (!gGotOptions || set < 1 || set > gNumSets) {
return;
}
// Apply lockdown only if it doesn't reduce any current lockdown
if (endTime > gOptions[`timedata${set}`][4]) {
gOptions[`timedata${set}`][4] = endTime;
}
saveTimeData();
}
// Cancel lockdown for specified set
//
function cancelLockdown(set) {
//log("cancelLockdown: " + set);
if (!gGotOptions || set < 1 || set > gNumSets) {
return;
}
gOptions[`timedata${set}`][4] = 0;
saveTimeData();