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WAM: Fix missing atob in audioworklet #1050
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Original file line number | Diff line number | Diff line change |
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// Copied from https://github.com/strophe/strophejs/blob/e06d027/src/polyfills.js#L149 | ||
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// This code was written by Tyler Akins and has been placed in the | ||
// public domain. It would be nice if you left this header intact. | ||
// Base64 code from Tyler Akins -- http://rumkin.com | ||
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/** | ||
* Decodes a base64 string. | ||
* @param {string} input The string to decode. | ||
*/ | ||
function atob(input) { | ||
var keyStr = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='; | ||
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var output = ''; | ||
var chr1, chr2, chr3; | ||
var enc1, enc2, enc3, enc4; | ||
var i = 0; | ||
// remove all characters that are not A-Z, a-z, 0-9, +, /, or = | ||
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ''); | ||
do { | ||
enc1 = keyStr.indexOf(input.charAt(i++)); | ||
enc2 = keyStr.indexOf(input.charAt(i++)); | ||
enc3 = keyStr.indexOf(input.charAt(i++)); | ||
enc4 = keyStr.indexOf(input.charAt(i++)); | ||
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chr1 = (enc1 << 2) | (enc2 >> 4); | ||
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); | ||
chr3 = ((enc3 & 3) << 6) | enc4; | ||
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output = output + String.fromCharCode(chr1); | ||
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if (enc3 !== 64) { | ||
output = output + String.fromCharCode(chr2); | ||
} | ||
if (enc4 !== 64) { | ||
output = output + String.fromCharCode(chr3); | ||
} | ||
} while (i < input.length); | ||
return output; | ||
}; |
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