mirror of https://github.com/keeweb/keeweb.git
435 lines
14 KiB
JavaScript
435 lines
14 KiB
JavaScript
'use strict';
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var AutoTypeObfuscator = require('./auto-type-obfuscator'),
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AutoTypeEmitterFactory = require('./auto-type-emitter-factory'),
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Format = require('../util/format'),
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Logger = require('../util/logger');
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var emitterLogger = new Logger('auto-type-emitter');
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emitterLogger.setLevel(localStorage.autoTypeDebug ? Logger.Level.All : Logger.Level.Warn);
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var AutoTypeRunner = function(ops) {
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this.ops = ops;
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this.pendingResolvesCount = 0;
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this.entry = null;
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this.now = new Date();
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};
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AutoTypeRunner.PendingResolve = { pending: true };
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AutoTypeRunner.Keys = {
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tab: 'tab', enter: 'enter', space: 'space',
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up: 'up', down: 'down', left: 'left', right: 'right', home: 'home', end: 'end', pgup: 'pgup', pgdn: 'pgdn',
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insert: 'ins', ins: 'ins', delete: 'del', del: 'del', backspace: 'bs', bs: 'bs', bksp: 'bs', esc: 'esc',
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win: 'win', lwin: 'win', rwin: 'rwin', f1: 'f1', f2: 'f2', f3: 'f3', f4: 'f4', f5: 'f5', f6: 'f6',
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f7: 'f7', f8: 'f8', f9: 'f9', f10: 'f10', f11: 'f11', f12: 'f12', f13: 'f13', f14: 'f14', f15: 'f15', f16: 'f16',
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add: 'add', subtract: 'subtract', multiply: 'multiply', divide: 'divide',
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numpad0: 'n0', numpad1: 'n1', numpad2: 'n2', numpad3: 'n3', numpad4: 'n4',
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numpad5: 'n5', numpad6: 'n6', numpad7: 'n7', numpad8: 'n8', numpad9: 'n9'
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};
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AutoTypeRunner.Substitutions = {
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title: function(runner, op) { return runner.getEntryFieldKeys('Title', op); },
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username: function(runner, op) { return runner.getEntryFieldKeys('UserName', op); },
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url: function(runner, op) { return runner.getEntryFieldKeys('URL', op); },
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password: function(runner, op) { return runner.getEntryFieldKeys('Password', op); },
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notes: function(runner, op) { return runner.getEntryFieldKeys('Notes', op); },
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group: function(runner) { return runner.getEntryGroupName(); },
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totp: function(runner, op) { return runner.getOtp(op); },
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s: function(runner, op) { return runner.getEntryFieldKeys(op.arg, op); },
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'dt_simple': function(runner) { return runner.dt('simple'); },
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'dt_year': function(runner) { return runner.dt('Y'); },
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'dt_month': function(runner) { return runner.dt('M'); },
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'dt_day': function(runner) { return runner.dt('D'); },
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'dt_hour': function(runner) { return runner.dt('h'); },
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'dt_minute': function(runner) { return runner.dt('m'); },
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'dt_second': function(runner) { return runner.dt('s'); },
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'dt_utc_simple': function(runner) { return runner.udt('simple'); },
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'dt_utc_year': function(runner) { return runner.udt('Y'); },
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'dt_utc_month': function(runner) { return runner.udt('M'); },
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'dt_utc_day': function(runner) { return runner.udt('D'); },
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'dt_utc_hour': function(runner) { return runner.udt('h'); },
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'dt_utc_minute': function(runner) { return runner.udt('m'); },
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'dt_utc_second': function(runner) { return runner.udt('s'); }
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};
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AutoTypeRunner.prototype.resolve = function(entry, callback) {
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this.entry = entry;
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try {
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this.resolveOps(this.ops);
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if (!this.pendingResolvesCount) {
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callback();
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} else {
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this.resolveCallback = callback;
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}
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} catch (e) {
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return callback(e);
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}
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};
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AutoTypeRunner.prototype.resolveOps = function(ops) {
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for (var i = 0, len = ops.length; i < len; i++) {
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var op = ops[i];
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if (op.type === 'group') {
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this.resolveOps(op.value);
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} else {
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this.resolveOp(op);
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}
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}
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};
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AutoTypeRunner.prototype.resolveOp = function(op) {
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if (op.value.length === 1 && !op.sep) {
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// {x}
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op.type = 'text';
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return;
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}
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if (op.value.length === 1 && op.sep === ' ') {
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// {x 3}
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op.type = 'text';
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var ch = op.value, text = ch, len = +op.arg;
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while (text.length < len) {
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text += ch;
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}
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op.value = text;
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return;
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}
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var lowerValue = op.value.toLowerCase();
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var key = AutoTypeRunner.Keys[lowerValue];
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if (key) {
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if (op.sep === ' ' && +op.arg > 0) {
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// {TAB 3}
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op.type = 'group';
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op.value = [];
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var count = +op.arg;
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for (var i = 0; i < count; i++) {
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op.value.push({type: 'key', value: key});
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}
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} else {
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// {TAB}
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op.type = 'key';
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op.value = key;
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}
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return;
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}
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var substitution = AutoTypeRunner.Substitutions[lowerValue];
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if (substitution) {
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// {title}
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op.type = 'text';
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op.value = substitution(this, op);
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if (op.value === AutoTypeRunner.PendingResolve) {
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this.pendingResolvesCount++;
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}
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return;
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}
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if (!this.tryParseCommand(op)) {
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throw 'Bad op: ' + op.value;
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}
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};
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AutoTypeRunner.prototype.tryParseCommand = function(op) {
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switch (op.value.toLowerCase()) {
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case 'clearfield':
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// {CLEARFIELD}
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op.type = 'group';
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op.value = [
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{ type: 'key', value: 'end' },
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{ type: 'key', value: 'home', mod: { '+': true } },
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{ type: 'key', value: 'bs' }
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];
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return true;
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case 'vkey':
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// {VKEY 10} {VKEY 0x1F}
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op.type = 'key';
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op.value = parseInt(op.arg);
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if (isNaN(op.value) || op.value <= 0) {
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throw 'Bad vkey: ' + op.arg;
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}
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return true;
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case 'delay':
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// {DELAY 5} {DELAY=5}
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op.type = 'cmd';
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op.value = op.sep === '=' ? 'setDelay' : 'wait';
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if (!op.arg) {
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throw 'Delay requires milliseconds count';
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}
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if (isNaN(+op.arg)) {
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throw 'Bad delay: ' + op.arg;
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}
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if (op.arg < 0) {
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throw 'Delay requires positive interval';
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}
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op.arg = +op.arg;
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return true;
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default:
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return false;
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}
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};
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AutoTypeRunner.prototype.getEntryFieldKeys = function(field, op) {
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if (!field || !this.entry) {
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return '';
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}
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field = field.toLowerCase();
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var value = null;
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_.findKey(this.entry.entry.fields, (val, f) => {
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if (f.toLowerCase() === field) {
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value = val;
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return true;
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}
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});
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if (!value) {
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return '';
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}
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if (value.isProtected) {
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op.type = 'group';
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var ops = [];
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value.forEachChar(ch => {
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if (ch === 10 || ch === 13) {
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ops.push({type: 'key', value: 'enter'});
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} else {
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ops.push({type: 'text', value: String.fromCharCode(ch)});
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}
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});
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return ops;
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} else {
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var parts = value.split(/[\r\n]/g);
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if (parts.length === 1) {
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return value;
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}
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op.type = 'group';
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var partsOps = [];
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parts.forEach(part => {
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if (partsOps.length) {
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partsOps.push({type: 'key', value: 'enter'});
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}
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if (part) {
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partsOps.push({type: 'text', value: part});
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}
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});
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return partsOps;
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}
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};
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AutoTypeRunner.prototype.getEntryGroupName = function() {
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return this.entry && this.entry.group.get('title');
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};
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AutoTypeRunner.prototype.dt = function(part) {
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switch (part) {
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case 'simple':
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return this.dt('Y') + this.dt('M') + this.dt('D') + this.dt('h') + this.dt('m') + this.dt('s');
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case 'Y':
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return this.now.getFullYear().toString();
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case 'M':
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return Format.pad(this.now.getMonth() + 1, 2);
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case 'D':
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return Format.pad(this.now.getDate(), 2);
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case 'h':
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return Format.pad(this.now.getHours(), 2);
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case 'm':
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return Format.pad(this.now.getMinutes(), 2);
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case 's':
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return Format.pad(this.now.getSeconds(), 2);
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default:
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throw 'Bad part: ' + part;
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}
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};
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AutoTypeRunner.prototype.udt = function(part) {
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switch (part) {
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case 'simple':
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return this.udt('Y') + this.udt('M') + this.udt('D') + this.udt('h') + this.udt('m') + this.udt('s');
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case 'Y':
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return this.now.getUTCFullYear().toString();
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case 'M':
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return Format.pad(this.now.getUTCMonth() + 1, 2);
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case 'D':
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return Format.pad(this.now.getUTCDate(), 2);
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case 'h':
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return Format.pad(this.now.getUTCHours(), 2);
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case 'm':
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return Format.pad(this.now.getUTCMinutes(), 2);
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case 's':
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return Format.pad(this.now.getUTCSeconds(), 2);
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default:
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throw 'Bad part: ' + part;
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}
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};
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AutoTypeRunner.prototype.getOtp = function(op) {
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if (!this.entry) {
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return '';
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}
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this.entry.initOtpGenerator();
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if (!this.entry.otpGenerator) {
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return '';
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}
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this.entry.otpGenerator.next(otp => {
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this.pendingResolved(op, otp, otp ? undefined : 'OTP error');
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});
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return AutoTypeRunner.PendingResolve;
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};
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AutoTypeRunner.prototype.pendingResolved = function(op, value, error) {
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var wasPending = op.value === AutoTypeRunner.PendingResolve;
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if (value) {
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op.value = value;
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}
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if (!wasPending) {
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return;
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}
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this.pendingResolvesCount--;
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if ((this.pendingResolvesCount === 0 || error) && this.resolveCallback) {
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this.resolveCallback(error);
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this.resolveCallback = null;
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}
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};
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AutoTypeRunner.prototype.obfuscate = function() {
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this.obfuscateOps(this.ops);
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};
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AutoTypeRunner.prototype.obfuscateOps = function(ops) {
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for (var i = 0, len = ops.length; i < len; i++) {
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var op = ops[i];
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if (op.mod) {
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continue;
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}
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if (op.type === 'text') {
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this.obfuscateOp(op);
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} else if (op.type === 'group') {
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var onlyText = op.value.every(grOp => grOp.type === 'text' && !grOp.mod);
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if (onlyText) {
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this.obfuscateOp(op);
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} else {
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this.obfuscateOps(op.value);
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}
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}
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}
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};
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AutoTypeRunner.prototype.obfuscateOp = function(op) {
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var letters = [];
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if (op.type === 'text') {
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if (!op.value || op.value.length <= 1) {
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return;
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}
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letters = op.value.split('');
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} else {
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op.value.forEach(grOp => letters.push.apply(letters, grOp.value.split('')));
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}
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if (letters.length <= 1) {
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return;
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}
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var obfuscator = new AutoTypeObfuscator(letters);
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op.value = obfuscator.obfuscate();
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op.type = 'group';
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};
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AutoTypeRunner.prototype.run = function(callback) {
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this.emitter = AutoTypeEmitterFactory.create(this.emitNext.bind(this));
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this.emitterState = {
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callback: callback,
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stack: [],
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ops: this.ops,
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opIx: 0,
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mod: {},
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activeMod: {},
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finished: null
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};
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this.emitNext();
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};
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AutoTypeRunner.prototype.emitNext = function(err) {
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if (err) {
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this.emitterState.finished = true;
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this.emitterState.callback(err);
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return;
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}
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if (this.emitterState.finished) {
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this.emitterState.callback();
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return;
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}
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this.resetEmitterMod(this.emitterState.mod);
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if (this.emitterState.opIx >= this.emitterState.ops.length) {
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var state = this.emitterState.stack.pop();
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if (state) {
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_.extend(this.emitterState, { ops: state.ops, opIx: state.opIx, mod: state.mod });
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this.emitNext();
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} else {
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this.resetEmitterMod({});
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this.emitterState.finished = true;
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emitterLogger.debug('waitComplete');
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this.emitter.waitComplete();
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}
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return;
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}
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var op = this.emitterState.ops[this.emitterState.opIx];
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if (op.type === 'group') {
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if (op.mod) {
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this.setEmitterMod(op.mod);
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}
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this.emitterState.stack.push({
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ops: this.emitterState.ops,
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opIx: this.emitterState.opIx + 1,
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mod: _.clone(this.emitterState.mod)
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});
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_.extend(this.emitterState, {
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ops: op.value,
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opIx: 0,
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mod: _.clone(this.emitterState.activeMod)
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});
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this.emitNext();
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return;
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}
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this.emitterState.opIx++;
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if (op.mod) {
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this.setEmitterMod(op.mod);
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}
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switch (op.type) {
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case 'text':
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emitterLogger.debug('text', op.value);
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if (op.value) {
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this.emitter.text(op.value);
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}
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break;
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case 'key':
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emitterLogger.debug('key', op.value);
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this.emitter.key(op.value);
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break;
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case 'cmd':
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var method = this.emitter[op.value];
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if (!method) {
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throw 'Bad cmd: ' + op.value;
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}
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emitterLogger.debug(op.value, op.arg);
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method.call(this.emitter, op.arg);
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break;
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default:
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throw 'Bad op: ' + op.type;
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}
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};
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AutoTypeRunner.prototype.setEmitterMod = function(addedMod) {
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Object.keys(addedMod).forEach(function(mod) {
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if (addedMod[mod] && !this.emitterState.activeMod[mod]) {
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emitterLogger.debug('mod', mod, true);
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this.emitter.setMod(mod, true);
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this.emitterState.activeMod[mod] = true;
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}
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}, this);
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};
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AutoTypeRunner.prototype.resetEmitterMod = function(targetState) {
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Object.keys(this.emitterState.activeMod).forEach(function(mod) {
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if (this.emitterState.activeMod[mod] && !targetState[mod]) {
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emitterLogger.debug('mod', mod, false);
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this.emitter.setMod(mod, false);
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delete this.emitterState.activeMod[mod];
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}
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}, this);
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};
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module.exports = AutoTypeRunner;
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