mirror of
https://gitlab.com/berufsschul-ae/blitzchat.git
synced 2024-12-23 04:47:41 +01:00
230 lines
6.1 KiB
JavaScript
230 lines
6.1 KiB
JavaScript
'use strict';
|
|
|
|
var has = Object.prototype.hasOwnProperty;
|
|
var isArray = Array.isArray;
|
|
|
|
var hexTable = (function () {
|
|
var array = [];
|
|
for (var i = 0; i < 256; ++i) {
|
|
array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase());
|
|
}
|
|
|
|
return array;
|
|
}());
|
|
|
|
var compactQueue = function compactQueue(queue) {
|
|
while (queue.length > 1) {
|
|
var item = queue.pop();
|
|
var obj = item.obj[item.prop];
|
|
|
|
if (isArray(obj)) {
|
|
var compacted = [];
|
|
|
|
for (var j = 0; j < obj.length; ++j) {
|
|
if (typeof obj[j] !== 'undefined') {
|
|
compacted.push(obj[j]);
|
|
}
|
|
}
|
|
|
|
item.obj[item.prop] = compacted;
|
|
}
|
|
}
|
|
};
|
|
|
|
var arrayToObject = function arrayToObject(source, options) {
|
|
var obj = options && options.plainObjects ? Object.create(null) : {};
|
|
for (var i = 0; i < source.length; ++i) {
|
|
if (typeof source[i] !== 'undefined') {
|
|
obj[i] = source[i];
|
|
}
|
|
}
|
|
|
|
return obj;
|
|
};
|
|
|
|
var merge = function merge(target, source, options) {
|
|
if (!source) {
|
|
return target;
|
|
}
|
|
|
|
if (typeof source !== 'object') {
|
|
if (isArray(target)) {
|
|
target.push(source);
|
|
} else if (target && typeof target === 'object') {
|
|
if ((options && (options.plainObjects || options.allowPrototypes)) || !has.call(Object.prototype, source)) {
|
|
target[source] = true;
|
|
}
|
|
} else {
|
|
return [target, source];
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
if (!target || typeof target !== 'object') {
|
|
return [target].concat(source);
|
|
}
|
|
|
|
var mergeTarget = target;
|
|
if (isArray(target) && !isArray(source)) {
|
|
mergeTarget = arrayToObject(target, options);
|
|
}
|
|
|
|
if (isArray(target) && isArray(source)) {
|
|
source.forEach(function (item, i) {
|
|
if (has.call(target, i)) {
|
|
var targetItem = target[i];
|
|
if (targetItem && typeof targetItem === 'object' && item && typeof item === 'object') {
|
|
target[i] = merge(targetItem, item, options);
|
|
} else {
|
|
target.push(item);
|
|
}
|
|
} else {
|
|
target[i] = item;
|
|
}
|
|
});
|
|
return target;
|
|
}
|
|
|
|
return Object.keys(source).reduce(function (acc, key) {
|
|
var value = source[key];
|
|
|
|
if (has.call(acc, key)) {
|
|
acc[key] = merge(acc[key], value, options);
|
|
} else {
|
|
acc[key] = value;
|
|
}
|
|
return acc;
|
|
}, mergeTarget);
|
|
};
|
|
|
|
var assign = function assignSingleSource(target, source) {
|
|
return Object.keys(source).reduce(function (acc, key) {
|
|
acc[key] = source[key];
|
|
return acc;
|
|
}, target);
|
|
};
|
|
|
|
var decode = function (str, decoder, charset) {
|
|
var strWithoutPlus = str.replace(/\+/g, ' ');
|
|
if (charset === 'iso-8859-1') {
|
|
// unescape never throws, no try...catch needed:
|
|
return strWithoutPlus.replace(/%[0-9a-f]{2}/gi, unescape);
|
|
}
|
|
// utf-8
|
|
try {
|
|
return decodeURIComponent(strWithoutPlus);
|
|
} catch (e) {
|
|
return strWithoutPlus;
|
|
}
|
|
};
|
|
|
|
var encode = function encode(str, defaultEncoder, charset) {
|
|
// This code was originally written by Brian White (mscdex) for the io.js core querystring library.
|
|
// It has been adapted here for stricter adherence to RFC 3986
|
|
if (str.length === 0) {
|
|
return str;
|
|
}
|
|
|
|
var string = typeof str === 'string' ? str : String(str);
|
|
|
|
if (charset === 'iso-8859-1') {
|
|
return escape(string).replace(/%u[0-9a-f]{4}/gi, function ($0) {
|
|
return '%26%23' + parseInt($0.slice(2), 16) + '%3B';
|
|
});
|
|
}
|
|
|
|
var out = '';
|
|
for (var i = 0; i < string.length; ++i) {
|
|
var c = string.charCodeAt(i);
|
|
|
|
if (
|
|
c === 0x2D // -
|
|
|| c === 0x2E // .
|
|
|| c === 0x5F // _
|
|
|| c === 0x7E // ~
|
|
|| (c >= 0x30 && c <= 0x39) // 0-9
|
|
|| (c >= 0x41 && c <= 0x5A) // a-z
|
|
|| (c >= 0x61 && c <= 0x7A) // A-Z
|
|
) {
|
|
out += string.charAt(i);
|
|
continue;
|
|
}
|
|
|
|
if (c < 0x80) {
|
|
out = out + hexTable[c];
|
|
continue;
|
|
}
|
|
|
|
if (c < 0x800) {
|
|
out = out + (hexTable[0xC0 | (c >> 6)] + hexTable[0x80 | (c & 0x3F)]);
|
|
continue;
|
|
}
|
|
|
|
if (c < 0xD800 || c >= 0xE000) {
|
|
out = out + (hexTable[0xE0 | (c >> 12)] + hexTable[0x80 | ((c >> 6) & 0x3F)] + hexTable[0x80 | (c & 0x3F)]);
|
|
continue;
|
|
}
|
|
|
|
i += 1;
|
|
c = 0x10000 + (((c & 0x3FF) << 10) | (string.charCodeAt(i) & 0x3FF));
|
|
out += hexTable[0xF0 | (c >> 18)]
|
|
+ hexTable[0x80 | ((c >> 12) & 0x3F)]
|
|
+ hexTable[0x80 | ((c >> 6) & 0x3F)]
|
|
+ hexTable[0x80 | (c & 0x3F)];
|
|
}
|
|
|
|
return out;
|
|
};
|
|
|
|
var compact = function compact(value) {
|
|
var queue = [{ obj: { o: value }, prop: 'o' }];
|
|
var refs = [];
|
|
|
|
for (var i = 0; i < queue.length; ++i) {
|
|
var item = queue[i];
|
|
var obj = item.obj[item.prop];
|
|
|
|
var keys = Object.keys(obj);
|
|
for (var j = 0; j < keys.length; ++j) {
|
|
var key = keys[j];
|
|
var val = obj[key];
|
|
if (typeof val === 'object' && val !== null && refs.indexOf(val) === -1) {
|
|
queue.push({ obj: obj, prop: key });
|
|
refs.push(val);
|
|
}
|
|
}
|
|
}
|
|
|
|
compactQueue(queue);
|
|
|
|
return value;
|
|
};
|
|
|
|
var isRegExp = function isRegExp(obj) {
|
|
return Object.prototype.toString.call(obj) === '[object RegExp]';
|
|
};
|
|
|
|
var isBuffer = function isBuffer(obj) {
|
|
if (!obj || typeof obj !== 'object') {
|
|
return false;
|
|
}
|
|
|
|
return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj));
|
|
};
|
|
|
|
var combine = function combine(a, b) {
|
|
return [].concat(a, b);
|
|
};
|
|
|
|
module.exports = {
|
|
arrayToObject: arrayToObject,
|
|
assign: assign,
|
|
combine: combine,
|
|
compact: compact,
|
|
decode: decode,
|
|
encode: encode,
|
|
isBuffer: isBuffer,
|
|
isRegExp: isRegExp,
|
|
merge: merge
|
|
};
|