1 files changed, 0 insertions, 150 deletions
diff --git a/js/base64.ts b/js/base64.ts
deleted file mode 100644
index 4d30e00f1..000000000
--- a/js/base64.ts
+++ /dev/null
@@ -1,150 +0,0 @@
-// Forked from https://github.com/beatgammit/base64-js
-// Copyright (c) 2014 Jameson Little. MIT License.
-
-const lookup: string[] = [];
-const revLookup: number[] = [];
-
-const code = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-for (let i = 0, len = code.length; i < len; ++i) {
-  lookup[i] = code[i];
-  revLookup[code.charCodeAt(i)] = i;
-}
-
-// Support decoding URL-safe base64 strings, as Node.js does.
-// See: https://en.wikipedia.org/wiki/Base64#URL_applications
-revLookup["-".charCodeAt(0)] = 62;
-revLookup["_".charCodeAt(0)] = 63;
-
-function getLens(b64: string): [number, number] {
-  const len = b64.length;
-
-  if (len % 4 > 0) {
-    throw new Error("Invalid string. Length must be a multiple of 4");
-  }
-
-  // Trim off extra bytes after placeholder bytes are found
-  // See: https://github.com/beatgammit/base64-js/issues/42
-  let validLen = b64.indexOf("=");
-  if (validLen === -1) validLen = len;
-
-  const placeHoldersLen = validLen === len ? 0 : 4 - (validLen % 4);
-
-  return [validLen, placeHoldersLen];
-}
-
-// base64 is 4/3 + up to two characters of the original data
-export function byteLength(b64: string): number {
-  const lens = getLens(b64);
-  const validLen = lens[0];
-  const placeHoldersLen = lens[1];
-  return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen;
-}
-
-function _byteLength(
-  b64: string,
-  validLen: number,
-  placeHoldersLen: number
-): number {
-  return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen;
-}
-
-export function toByteArray(b64: string): Uint8Array {
-  let tmp;
-  const lens = getLens(b64);
-  const validLen = lens[0];
-  const placeHoldersLen = lens[1];
-
-  const arr = new Uint8Array(_byteLength(b64, validLen, placeHoldersLen));
-
-  let curByte = 0;
-
-  // if there are placeholders, only get up to the last complete 4 chars
-  const len = placeHoldersLen > 0 ? validLen - 4 : validLen;
-
-  let i;
-  for (i = 0; i < len; i += 4) {
-    tmp =
-      (revLookup[b64.charCodeAt(i)] << 18) |
-      (revLookup[b64.charCodeAt(i + 1)] << 12) |
-      (revLookup[b64.charCodeAt(i + 2)] << 6) |
-      revLookup[b64.charCodeAt(i + 3)];
-    arr[curByte++] = (tmp >> 16) & 0xff;
-    arr[curByte++] = (tmp >> 8) & 0xff;
-    arr[curByte++] = tmp & 0xff;
-  }
-
-  if (placeHoldersLen === 2) {
-    tmp =
-      (revLookup[b64.charCodeAt(i)] << 2) |
-      (revLookup[b64.charCodeAt(i + 1)] >> 4);
-    arr[curByte++] = tmp & 0xff;
-  }
-
-  if (placeHoldersLen === 1) {
-    tmp =
-      (revLookup[b64.charCodeAt(i)] << 10) |
-      (revLookup[b64.charCodeAt(i + 1)] << 4) |
-      (revLookup[b64.charCodeAt(i + 2)] >> 2);
-    arr[curByte++] = (tmp >> 8) & 0xff;
-    arr[curByte++] = tmp & 0xff;
-  }
-
-  return arr;
-}
-
-function tripletToBase64(num: number): string {
-  return (
-    lookup[(num >> 18) & 0x3f] +
-    lookup[(num >> 12) & 0x3f] +
-    lookup[(num >> 6) & 0x3f] +
-    lookup[num & 0x3f]
-  );
-}
-
-function encodeChunk(uint8: Uint8Array, start: number, end: number): string {
-  let tmp;
-  const output = [];
-  for (let i = start; i < end; i += 3) {
-    tmp =
-      ((uint8[i] << 16) & 0xff0000) +
-      ((uint8[i + 1] << 8) & 0xff00) +
-      (uint8[i + 2] & 0xff);
-    output.push(tripletToBase64(tmp));
-  }
-  return output.join("");
-}
-
-export function fromByteArray(uint8: Uint8Array): string {
-  let tmp;
-  const len = uint8.length;
-  const extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes
-  const parts = [];
-  const maxChunkLength = 16383; // must be multiple of 3
-
-  // go through the array every three bytes, we'll deal with trailing stuff later
-  for (let i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
-    parts.push(
-      encodeChunk(
-        uint8,
-        i,
-        i + maxChunkLength > len2 ? len2 : i + maxChunkLength
-      )
-    );
-  }
-
-  // pad the end with zeros, but make sure to not forget the extra bytes
-  if (extraBytes === 1) {
-    tmp = uint8[len - 1];
-    parts.push(lookup[tmp >> 2] + lookup[(tmp << 4) & 0x3f] + "==");
-  } else if (extraBytes === 2) {
-    tmp = (uint8[len - 2] << 8) + uint8[len - 1];
-    parts.push(
-      lookup[tmp >> 10] +
-        lookup[(tmp >> 4) & 0x3f] +
-        lookup[(tmp << 2) & 0x3f] +
-        "="
-    );
-  }
-
-  return parts.join("");
-}