initial commit of actions

github/codeql-action-v2/node_modules/@protobuf-ts/runtime/build/es2015/base64.js

@@ -0,0 +1,113 @@
+// lookup table from base64 character to byte
+let encTable = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');
+// lookup table from base64 character *code* to byte because lookup by number is fast
+let decTable = [];
+for (let i = 0; i < encTable.length; i++)
+    decTable[encTable[i].charCodeAt(0)] = i;
+// support base64url variants
+decTable["-".charCodeAt(0)] = encTable.indexOf("+");
+decTable["_".charCodeAt(0)] = encTable.indexOf("/");
+/**
+ * Decodes a base64 string to a byte array.
+ *
+ * - ignores white-space, including line breaks and tabs
+ * - allows inner padding (can decode concatenated base64 strings)
+ * - does not require padding
+ * - understands base64url encoding:
+ *   "-" instead of "+",
+ *   "_" instead of "/",
+ *   no padding
+ */
+export function base64decode(base64Str) {
+    // estimate byte size, not accounting for inner padding and whitespace
+    let es = base64Str.length * 3 / 4;
+    // if (es % 3 !== 0)
+    // throw new Error('invalid base64 string');
+    if (base64Str[base64Str.length - 2] == '=')
+        es -= 2;
+    else if (base64Str[base64Str.length - 1] == '=')
+        es -= 1;
+    let bytes = new Uint8Array(es), bytePos = 0, // position in byte array
+    groupPos = 0, // position in base64 group
+    b, // current byte
+    p = 0 // previous byte
+    ;
+    for (let i = 0; i < base64Str.length; i++) {
+        b = decTable[base64Str.charCodeAt(i)];
+        if (b === undefined) {
+            // noinspection FallThroughInSwitchStatementJS
+            switch (base64Str[i]) {
+                case '=':
+                    groupPos = 0; // reset state when padding found
+                case '\n':
+                case '\r':
+                case '\t':
+                case ' ':
+                    continue; // skip white-space, and padding
+                default:
+                    throw Error(`invalid base64 string.`);
+            }
+        }
+        switch (groupPos) {
+            case 0:
+                p = b;
+                groupPos = 1;
+                break;
+            case 1:
+                bytes[bytePos++] = p << 2 | (b & 48) >> 4;
+                p = b;
+                groupPos = 2;
+                break;
+            case 2:
+                bytes[bytePos++] = (p & 15) << 4 | (b & 60) >> 2;
+                p = b;
+                groupPos = 3;
+                break;
+            case 3:
+                bytes[bytePos++] = (p & 3) << 6 | b;
+                groupPos = 0;
+                break;
+        }
+    }
+    if (groupPos == 1)
+        throw Error(`invalid base64 string.`);
+    return bytes.subarray(0, bytePos);
+}
+/**
+ * Encodes a byte array to a base64 string.
+ * Adds padding at the end.
+ * Does not insert newlines.
+ */
+export function base64encode(bytes) {
+    let base64 = '', groupPos = 0, // position in base64 group
+    b, // current byte
+    p = 0; // carry over from previous byte
+    for (let i = 0; i < bytes.length; i++) {
+        b = bytes[i];
+        switch (groupPos) {
+            case 0:
+                base64 += encTable[b >> 2];
+                p = (b & 3) << 4;
+                groupPos = 1;
+                break;
+            case 1:
+                base64 += encTable[p | b >> 4];
+                p = (b & 15) << 2;
+                groupPos = 2;
+                break;
+            case 2:
+                base64 += encTable[p | b >> 6];
+                base64 += encTable[b & 63];
+                groupPos = 0;
+                break;
+        }
+    }
+    // padding required?
+    if (groupPos) {
+        base64 += encTable[p];
+        base64 += '=';
+        if (groupPos == 1)
+            base64 += '=';
+    }
+    return base64;
+}