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'use strict';
const ignoreRegex = /(bank|coupon|postal|user|zip).*code|comment|author/i;
const ignoredTypes = [ 'email', 'password', 'username' ];
const acceptedOTPFields = [
'2fa',
'auth',
'challenge',
'code',
'mfa',
'otp',
'token',
'twofactor'
];
var kpxcTOTPIcons = {};
kpxcTOTPIcons.icons = [];
kpxcTOTPIcons.newIcon = function(field, databaseState = DatabaseState.DISCONNECTED, forced = false) {
kpxcTOTPIcons.icons.push(new TOTPFieldIcon(field, databaseState, forced));
};
kpxcTOTPIcons.switchIcon = function(state) {
kpxcTOTPIcons.icons.forEach(u => u.switchIcon(state));
};
kpxcTOTPIcons.deleteHiddenIcons = function() {
kpxcUI.deleteHiddenIcons(kpxcTOTPIcons.icons, 'kpxc-totp-field');
};
// Quick check for a valid TOTP field
kpxcTOTPIcons.isAcceptedTOTPField = function(field) {
const id = field.getLowerCaseAttribute('id');
const name = field.getLowerCaseAttribute('name');
const autocomplete = field.getLowerCaseAttribute('autocomplete');
const placeholder = field.getLowerCaseAttribute('placeholder');
// Checks if the field id, name or placeholder includes some of the acceptedOTPFields but not any from ignoredTypes
if (autocomplete === 'one-time-code'
|| (acceptedOTPFields.some(f => (id && id.includes(f)) || (name && name.includes(f) || placeholder && placeholder.includes(f))))
&& !ignoredTypes.some(f => (id && id.includes(f)) || (name && name.includes(f) || placeholder && placeholder.includes(f)))) {
return true;
}
return false;
};
kpxcTOTPIcons.isValid = function(field, forced) {
if (!field || !kpxcTOTPIcons.isAcceptedTOTPField(field)) {
return false;
}
if (!forced) {
if (ignoredTypes.some(t => t === field.type)
|| field.offsetWidth < MINIMUM_INPUT_FIELD_WIDTH
|| field.size < 2
|| (field.maxLength > 0 && (field.maxLength < MIN_TOTP_INPUT_LENGTH || field.maxLength > kpxcSites.expectedTOTPMaxLength()))
|| ignoredTypes.some(t => t === field.autocomplete)
|| field.id.match(ignoreRegex)
|| field.name.match(ignoreRegex)
|| field.readOnly) {
return false;
}
} else {
if (field.getAttribute('kpxc-totp-field') === 'true') {
return false;
}
}
return true;
};
class TOTPFieldIcon extends Icon {
constructor(field, databaseState = DatabaseState.DISCONNECTED, forced = false) {
super(field, databaseState);
this.initField(field, forced);
kpxcUI.monitorIconPosition(this);
}
}
TOTPFieldIcon.prototype.initField = function(field, forced) {
// Observer the visibility
if (this.observer) {
this.observer.observe(field);
}
this.createIcon(field);
this.inputField = field;
};
TOTPFieldIcon.prototype.createIcon = function(field) {
const className = (isFirefox() ? 'moz' : 'default');
// Size the icon dynamically, but not greater than 24 or smaller than 14
const size = Math.max(Math.min(24, field.offsetHeight - 4), 14);
const offset = kpxcUI.calculateIconOffset(field, size);
const icon = kpxcUI.createElement('div', 'kpxc kpxc-totp-icon ' + className,
{
'title': tr('totpFieldText'),
'alt': tr('totpFieldIcon'),
'size': size,
'offset': offset
});
icon.style.zIndex = '10000000';
icon.style.width = Pixels(size);
icon.style.height = Pixels(size);
if (this.databaseState === DatabaseState.DISCONNECTED || this.databaseState === DatabaseState.LOCKED) {
icon.style.filter = 'saturate(0%)';
}
icon.addEventListener('click', async function(e) {
if (!e.isTrusted) {
return;
}
e.preventDefault();
await kpxc.receiveCredentialsIfNecessary();
kpxc.fillFromTOTP(field);
});
kpxcUI.setIconPosition(icon, field, this.rtl);
this.icon = icon;
const styleSheet = document.createElement('link');
styleSheet.setAttribute('rel', 'stylesheet');
styleSheet.setAttribute('href', browser.runtime.getURL('css/totp.css'));
const wrapper = document.createElement('div');
this.shadowRoot = wrapper.attachShadow({ mode: 'closed' });
this.shadowRoot.append(styleSheet);
this.shadowRoot.append(icon);
document.body.append(wrapper);
};
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