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| 'use strict';
|
| exports.randomString = function randomString(length, charSet) {
| var result = [];
| length = length || 16;
| charSet = charSet || 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
|
| while (length--) {
| result.push(charSet[Math.floor(Math.random() * charSet.length)]);
| }
| return result.join('');
| };
|
| /**
| * split string to array
| * @param {String} str
| * @param {String} [sep] default is ','
| * @return {Array}
| */
| exports.split = function split(str, sep) {
| str = str || '';
| sep = sep || ',';
| var items = str.split(sep);
| var needs = [];
| for (var i = 0; i < items.length; i++) {
| var s = items[i].trim();
| if (s.length > 0) {
| needs.push(s);
| }
| }
| return needs;
| };
| // always optimized
| exports.splitAlwaysOptimized = function splitAlwaysOptimized() {
| var str = '';
| var sep = ',';
| if (arguments.length === 1) {
| str = arguments[0] || '';
| } else if (arguments.length === 2) {
| str = arguments[0] || '';
| sep = arguments[1] || ',';
| }
| var items = str.split(sep);
| var needs = [];
| for (var i = 0; i < items.length; i++) {
| var s = items[i].trim();
| if (s.length > 0) {
| needs.push(s);
| }
| }
| return needs;
| };
|
| /**
| * Replace string
| *
| * @param {String} str
| * @param {String|RegExp} substr
| * @param {String|Function} newSubstr
| * @return {String}
| */
| exports.replace = function replace(str, substr, newSubstr) {
| var replaceFunction = newSubstr;
| if (typeof replaceFunction !== 'function') {
| replaceFunction = function () {
| return newSubstr;
| };
| }
| return str.replace(substr, replaceFunction);
| };
|
| // original source https://github.com/nodejs/node/blob/v7.5.0/lib/_http_common.js#L300
| /**
| * True if val contains an invalid field-vchar
| * field-value = *( field-content / obs-fold )
| * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
| * field-vchar = VCHAR / obs-text
| *
| * checkInvalidHeaderChar() is currently designed to be inlinable by v8,
| * so take care when making changes to the implementation so that the source
| * code size does not exceed v8's default max_inlined_source_size setting.
| **/
| var validHdrChars = [
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, // 0 - 15
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 32 - 47
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 48 - 63
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 64 - 79
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 80 - 95
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 96 - 111
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, // 112 - 127
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 128 ...
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ... 255
| ];
|
| /**
| * Replace invalid http header characters with replacement
| *
| * @param {String} val
| * @param {String|Function} replacement - can be `function(char)`
| * @return {Object}
| */
| exports.replaceInvalidHttpHeaderChar = function replaceInvalidHttpHeaderChar(val, replacement) {
| replacement = replacement || ' ';
| var invalid = false;
|
| if (!val || typeof val !== 'string') {
| return {
| val: val,
| invalid: invalid,
| };
| }
|
| var replacementType = typeof replacement;
| var chars;
| for (var i = 0; i < val.length; ++i) {
| if (!validHdrChars[val.charCodeAt(i)]) {
| // delay create chars
| chars = chars || val.split('');
| if (replacementType === 'function') {
| chars[i] = replacement(chars[i]);
| } else {
| chars[i] = replacement;
| }
| }
| }
|
| if (chars) {
| val = chars.join('');
| invalid = true;
| }
|
| return {
| val: val,
| invalid: invalid,
| };
| };
|
| /**
| * Detect invalid http header characters in a string
| *
| * @param {String} val
| * @return {Boolean}
| */
| exports.includesInvalidHttpHeaderChar = function includesInvalidHttpHeaderChar(val) {
| if (!val || typeof val !== 'string') {
| return false;
| }
|
| for (var i = 0; i < val.length; ++i) {
| if (!validHdrChars[val.charCodeAt(i)]) {
| return true;
| }
| }
|
| return false;
| };
|
|
