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4 |
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5 | var util = require('../src/util')
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6 | var Global = util.Global
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7 | var trim = util.trim
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8 |
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9 | module.exports = {
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10 | name: 'cookieStorage',
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11 | read: read,
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12 | write: write,
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13 | each: each,
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14 | remove: remove,
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15 | clearAll: clearAll,
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16 | }
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17 |
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18 | var doc = Global.document
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19 |
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20 | function read(key) {
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21 | if (!key || !_has(key)) { return null }
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22 | var regexpStr = "(?:^|.*;\\s*)" +
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23 | escape(key).replace(/[\-\.\+\*]/g, "\\$&") +
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24 | "\\s*\\=\\s*((?:[^;](?!;))*[^;]?).*"
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25 | return unescape(doc.cookie.replace(new RegExp(regexpStr), "$1"))
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26 | }
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27 |
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28 | function each(callback) {
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29 | var cookies = doc.cookie.split(/; ?/g)
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30 | for (var i = cookies.length - 1; i >= 0; i--) {
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31 | if (!trim(cookies[i])) {
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32 | continue
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33 | }
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34 | var kvp = cookies[i].split('=')
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35 | var key = unescape(kvp[0])
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36 | var val = unescape(kvp[1])
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37 | callback(val, key)
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38 | }
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39 | }
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40 |
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41 | function write(key, data) {
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42 | if(!key) { return }
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43 | doc.cookie = escape(key) + "=" + escape(data) + "; expires=Tue, 19 Jan 2038 03:14:07 GMT; path=/"
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44 | }
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45 |
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46 | function remove(key) {
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47 | if (!key || !_has(key)) {
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48 | return
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49 | }
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50 | doc.cookie = escape(key) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT; path=/"
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51 | }
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52 |
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53 | function clearAll() {
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54 | each(function(_, key) {
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55 | remove(key)
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56 | })
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57 | }
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58 |
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59 | function _has(key) {
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60 | return (new RegExp("(?:^|;\\s*)" + escape(key).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=")).test(doc.cookie)
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61 | }
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