151 lines
3.4 KiB
JavaScript
151 lines
3.4 KiB
JavaScript
// Metro module 1309 (f1310).
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let c1077_0 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");
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let c1077_1 = [];
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const r4 = 0 < c1077_0.length;
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let r0 = 0;
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if (r4) {
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do {
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c1077_1[c1077_0[r0].charCodeAt(0)] = r0;
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r0 = r0 + 1;
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} while (r0 < c1077_0.length);
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}
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c1077_1["-".charCodeAt(0)] = c1077_0.indexOf("+");
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c1077_1["_".charCodeAt(0)] = c1077_0.indexOf("/");
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export function base64decode(a0) {
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let r0, r1, r58, length;
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const r13 = 3 * a0.length / 4;
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const uint8Array = new Uint8Array(a0[a0.length - 2] == "=" ? r13 - 2 : a0[a0.length - 1] == "=" ? r13 - 1 : r13);
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const r23 = 0 < a0.length;
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let r4 = 0;
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let r27 = 0;
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let r5 = 0;
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let r6 = 0;
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let r53 = 0;
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let r54 = 0;
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if (r23) {
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do {
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const r36 = c1077_1[a0.charCodeAt(r4)];
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const r12 = r4;
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const r57 = r27;
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const r8 = r5;
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const r3 = r6;
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if (r36 === void 0) {
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const r69 = a0[r12];
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if (r69 === "=") {
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r58 = r57;
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r0 = 0;
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r1 = r3;
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} else {
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r58 = r57;
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r0 = r8;
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r1 = r3;
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if (r69 !== "\n") {
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r58 = r57;
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r0 = r8;
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r1 = r3;
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if (r69 !== "\r") {
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r58 = r57;
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r0 = r8;
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r1 = r3;
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if (r69 !== "\t") {
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r58 = r57;
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r0 = r8;
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r1 = r3;
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if (r69 !== " ") {
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throw Error("invalid base64 string.");
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}
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}
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}
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}
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}
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} else if (r8 === 0) {
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r58 = r36;
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r0 = 1;
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r1 = r3;
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} else if (r8 === 1) {
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r1 = r3 + 1;
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uint8Array[r3] = r57 << 2 | (48 & r36) >> 4;
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r58 = r36;
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r0 = 2;
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} else if (r8 === 2) {
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r1 = r3 + 1;
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uint8Array[r3] = (15 & r57) << 4 | (60 & r36) >> 2;
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r58 = r36;
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r0 = 3;
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} else {
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r58 = r57;
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r1 = r3;
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r0 = r8;
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if (r0 === 3) {
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r1 = r3 + 1;
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uint8Array[r3] = (3 & r57) << 6 | r36;
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r58 = r57;
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r0 = 0;
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}
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}
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r4 = r12 + 1;
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length = a0.length;
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r27 = r58;
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r5 = r0;
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r6 = r1;
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r53 = r5;
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r54 = r6;
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} while (r4 < length);
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}
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if (r53 === 1) {
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throw Error("invalid base64 string.");
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}
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return uint8Array.subarray(0, r54);
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}
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export function base64encode(a0) {
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let r2, r24, length;
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const r18 = 0 < a0.length;
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let r22 = "";
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let r3 = 0;
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let r4 = 0;
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let r5 = 0;
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let r11 = 0;
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let r12 = 0;
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let r21 = "";
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if (r18) {
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do {
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const r25 = a0[r3];
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const r10 = r3;
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const r6 = r4;
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let r1 = r5;
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const r26 = r22;
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if (r1 === 0) {
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r24 = r26 + c1077_0[r25 >> 2];
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r2 = (3 & r25) << 4;
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r1 = 1;
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} else if (r1 === 1) {
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r24 = r26 + c1077_0[r6 | r25 >> 4];
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r2 = (15 & r25) << 2;
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r1 = 2;
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} else {
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r2 = r6;
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r24 = r26;
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if (r1 === 2) {
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r24 = r26 + c1077_0[r6 | r25 >> 6] + c1077_0[63 & r25];
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r2 = r6;
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r1 = 0;
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}
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}
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r3 = r10 + 1;
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length = a0.length;
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r4 = r2;
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r5 = r1;
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r22 = r24;
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r11 = r4;
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r12 = r5;
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r21 = r22;
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} while (r3 < length);
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}
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let r43 = r21;
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if (r12) {
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const r48 = r21 + c1077_0[r11] + "=";
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r43 = r12 === 1 ? r48 + "=" : r48;
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}
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return r43;
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}
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