mirror of
https://github.com/nodejs/node.git
synced 2024-12-01 16:10:02 +01:00
141a6e34ee
PR-URL: https://github.com/nodejs/node/pull/30635 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
101 lines
2.7 KiB
JavaScript
101 lines
2.7 KiB
JavaScript
'use strict';
|
|
|
|
const {
|
|
Array,
|
|
} = primordials;
|
|
|
|
const { ERR_INVALID_URI } = require('internal/errors').codes;
|
|
|
|
const hexTable = new Array(256);
|
|
for (let i = 0; i < 256; ++i)
|
|
hexTable[i] = '%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase();
|
|
|
|
const isHexTable = [
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0 - 15
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 32 - 47
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63
|
|
0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 64 - 79
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 80 - 95
|
|
0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 96 - 111
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 112 - 127
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 128 ...
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // ... 256
|
|
];
|
|
|
|
function encodeStr(str, noEscapeTable, hexTable) {
|
|
const len = str.length;
|
|
if (len === 0)
|
|
return '';
|
|
|
|
let out = '';
|
|
let lastPos = 0;
|
|
|
|
for (let i = 0; i < len; i++) {
|
|
let c = str.charCodeAt(i);
|
|
|
|
// ASCII
|
|
if (c < 0x80) {
|
|
if (noEscapeTable[c] === 1)
|
|
continue;
|
|
if (lastPos < i)
|
|
out += str.slice(lastPos, i);
|
|
lastPos = i + 1;
|
|
out += hexTable[c];
|
|
continue;
|
|
}
|
|
|
|
if (lastPos < i)
|
|
out += str.slice(lastPos, i);
|
|
|
|
// Multi-byte characters ...
|
|
if (c < 0x800) {
|
|
lastPos = i + 1;
|
|
out += hexTable[0xC0 | (c >> 6)] +
|
|
hexTable[0x80 | (c & 0x3F)];
|
|
continue;
|
|
}
|
|
if (c < 0xD800 || c >= 0xE000) {
|
|
lastPos = i + 1;
|
|
out += hexTable[0xE0 | (c >> 12)] +
|
|
hexTable[0x80 | ((c >> 6) & 0x3F)] +
|
|
hexTable[0x80 | (c & 0x3F)];
|
|
continue;
|
|
}
|
|
// Surrogate pair
|
|
++i;
|
|
|
|
// This branch should never happen because all URLSearchParams entries
|
|
// should already be converted to USVString. But, included for
|
|
// completion's sake anyway.
|
|
if (i >= len)
|
|
throw new ERR_INVALID_URI();
|
|
|
|
const c2 = str.charCodeAt(i) & 0x3FF;
|
|
|
|
lastPos = i + 1;
|
|
c = 0x10000 + (((c & 0x3FF) << 10) | c2);
|
|
out += hexTable[0xF0 | (c >> 18)] +
|
|
hexTable[0x80 | ((c >> 12) & 0x3F)] +
|
|
hexTable[0x80 | ((c >> 6) & 0x3F)] +
|
|
hexTable[0x80 | (c & 0x3F)];
|
|
}
|
|
if (lastPos === 0)
|
|
return str;
|
|
if (lastPos < len)
|
|
return out + str.slice(lastPos);
|
|
return out;
|
|
}
|
|
|
|
module.exports = {
|
|
encodeStr,
|
|
hexTable,
|
|
isHexTable
|
|
};
|