116 lines
3.8 KiB
JavaScript
116 lines
3.8 KiB
JavaScript
/*
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* Functions for validation of user input
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* This gets used on server and on the client.
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*
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* On the server the return values will be again translated with gettext
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* which could be a bit questionable, but it is preferable to write this file
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* two times imho.
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*
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*/
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import { t } from 'ttag';
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// eslint-disable-next-line no-useless-escape, max-len
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const mailTester = /^[-!#$%&'*+\/0-9=?A-Z^_a-z{|}~](\.?[-!#$%&'*+\/0-9=?A-Z^_a-z`{|}~])*@[a-zA-Z0-9](-*\.?[a-zA-Z0-9])*\.[a-zA-Z](-?[a-zA-Z0-9])+$/;
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export function validateEMail(email) {
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if (!email) return t`Email can't be empty.`;
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if (email.length < 5) return t`Email should be at least 5 characters long.`;
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if (email.length > 40) return t`Email can't be longer than 40 characters.`;
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if (email.indexOf('.') === -1) return t`Email should at least contain a dot`;
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if (email.split('').filter((x) => x === '@').length !== 1) {
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return t`Email should contain a @`;
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}
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if (!mailTester.test(email)) return 'Your Email looks shady';
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return false;
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}
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export function validateName(name) {
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if (!name) return t`Name can't be empty.`;
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if (name.length < 2) return t`Name must be at least 2 characters long`;
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if (name.length > 26) return t`Name must be shorter than 26 characters`;
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if (name.indexOf('@') !== -1
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|| name.indexOf('/') !== -1
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|| name.indexOf('\\') !== -1
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|| name.indexOf('>') !== -1
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|| name.indexOf('<') !== -1
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|| name.indexOf('#') !== -1) {
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return t`Name contains invalid character like @, /, \\ or #`;
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}
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return false;
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}
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export function sanitizeName(name) {
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name = name.substring(0, 25);
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// just sanitizes @ for now, other characters do not seem
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// problematic, even thought that we rule them out in validateName
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name = name.replace(/@/g, 'at');
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return name;
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}
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export function validatePassword(password) {
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if (!password) {
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return t`No password given.`;
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}
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if (password.length < 6) {
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return t`Password must be at least 6 characters long.`;
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}
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if (password.length > 60) {
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return t`Password must be shorter than 60 characters.`;
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}
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return false;
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}
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/*
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* validate an area given by top-left and bottom-right corner coords
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* @param ulcoor coords in x_y format, top-left corner
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* @param brcoor coords in x_y format, bottom-right corner
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* @param canvasSize dimension of canvas, integer
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* @return [x, y, u, v] Corner coords if success, error string is failure
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*/
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export function validateCoorRange(ulcoor, brcoor, canvasSize) {
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if (!ulcoor || !brcoor) {
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return 'Not all coordinates defined';
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}
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let splitCoords = ulcoor.trim().split('_');
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if (splitCoords.length !== 2) {
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return 'Invalid Coordinate Format for top-left corner';
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}
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const [x, y] = splitCoords.map((z) => Math.floor(Number(z)));
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splitCoords = brcoor.trim().split('_');
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if (splitCoords.length !== 2) {
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return 'Invalid Coordinate Format for bottom-right corner';
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}
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const [u, v] = splitCoords.map((z) => Math.floor(Number(z)));
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let error = null;
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if (Number.isNaN(x)) {
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error = 'x of top-left corner is not a valid number';
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} else if (Number.isNaN(y)) {
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error = 'y of top-left corner is not a valid number';
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} else if (Number.isNaN(u)) {
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error = 'x of bottom-right corner is not a valid number';
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} else if (Number.isNaN(v)) {
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error = 'y of bottom-right corner is not a valid number';
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} else if (u < x || v < y) {
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error = 'Corner coordinates are aligned wrong';
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}
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if (error !== null) {
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return error;
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}
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const canvasMaxXY = canvasSize / 2;
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const canvasMinXY = -canvasMaxXY;
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if (x < canvasMinXY || y < canvasMinXY
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|| x >= canvasMaxXY || y >= canvasMaxXY) {
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return 'Coordinates of top-left corner are outside of canvas';
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}
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if (u < canvasMinXY || v < canvasMinXY
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|| u >= canvasMaxXY || v >= canvasMaxXY) {
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return 'Coordinates of bottom-right corner are outside of canvas';
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}
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return [x, y, u, v];
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}
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