diff options
Diffstat (limited to 'node_modules/loader-utils/lib/getHashDigest.js')
-rw-r--r-- | node_modules/loader-utils/lib/getHashDigest.js | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/node_modules/loader-utils/lib/getHashDigest.js b/node_modules/loader-utils/lib/getHashDigest.js deleted file mode 100644 index bbc4e03..0000000 --- a/node_modules/loader-utils/lib/getHashDigest.js +++ /dev/null @@ -1,69 +0,0 @@ -'use strict'; - -const baseEncodeTables = { - 26: 'abcdefghijklmnopqrstuvwxyz', - 32: '123456789abcdefghjkmnpqrstuvwxyz', // no 0lio - 36: '0123456789abcdefghijklmnopqrstuvwxyz', - 49: 'abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ', // no lIO - 52: 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', - 58: '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ', // no 0lIO - 62: '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', - 64: '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_', -}; - -function encodeBufferToBase(buffer, base) { - const encodeTable = baseEncodeTables[base]; - if (!encodeTable) { - throw new Error('Unknown encoding base' + base); - } - - const readLength = buffer.length; - const Big = require('big.js'); - - Big.RM = Big.DP = 0; - let b = new Big(0); - - for (let i = readLength - 1; i >= 0; i--) { - b = b.times(256).plus(buffer[i]); - } - - let output = ''; - while (b.gt(0)) { - output = encodeTable[b.mod(base)] + output; - b = b.div(base); - } - - Big.DP = 20; - Big.RM = 1; - - return output; -} - -function getHashDigest(buffer, hashType, digestType, maxLength) { - hashType = hashType || 'md5'; - maxLength = maxLength || 9999; - - const hash = require('crypto').createHash(hashType); - - hash.update(buffer); - - if ( - digestType === 'base26' || - digestType === 'base32' || - digestType === 'base36' || - digestType === 'base49' || - digestType === 'base52' || - digestType === 'base58' || - digestType === 'base62' || - digestType === 'base64' - ) { - return encodeBufferToBase(hash.digest(), digestType.substr(4)).substr( - 0, - maxLength - ); - } else { - return hash.digest(digestType || 'hex').substr(0, maxLength); - } -} - -module.exports = getHashDigest; |