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