1 | "use strict"
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2 |
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3 | const anyDataURLRegexp = /^data:text\/css(?:;(base64|plain))?,/i
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4 | const base64DataURLRegexp = /^data:text\/css;base64,/i
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5 | const plainDataURLRegexp = /^data:text\/css;plain,/i
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6 |
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7 | function isValid(url) {
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8 | return anyDataURLRegexp.test(url)
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9 | }
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10 |
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11 | function contents(url) {
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12 | if (base64DataURLRegexp.test(url)) {
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13 |
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14 | return Buffer.from(url.slice(21), "base64").toString()
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15 | }
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16 |
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17 | if (plainDataURLRegexp.test(url)) {
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18 |
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19 | return decodeURIComponent(url.slice(20))
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20 | }
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21 |
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22 |
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23 | return decodeURIComponent(url.slice(14))
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24 | }
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25 |
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26 | module.exports = {
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27 | isValid,
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28 | contents,
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29 | }
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