shell bypass 403
'use strict';
const tokenize = require('postcss/lib/tokenize');
function templateTokenize(input) {
let pos = input.quasis[0].start;
const quasis = input.quasis.filter((quasi) => quasi.start !== quasi.end);
const tokenizer = tokenize.apply(this, arguments);
function tokenInExpressions(token, returned) {
const start = pos;
pos += token[1].length;
if (
!quasis.some((quasi) => start >= quasi.start && pos <= quasi.end) ||
(returned.length && token[0] === returned[0][0])
) {
return true;
} else if (returned.length) {
back(token);
}
}
function back(token) {
pos -= token[1].length;
return tokenizer.back.apply(tokenizer, arguments);
}
function nextToken() {
const args = arguments;
const returned = [];
let token;
let line;
let column;
while (
(token = tokenizer.nextToken.apply(tokenizer, args)) &&
tokenInExpressions(token, returned)
) {
line = token[4] || token[2] || line;
column = token[5] || token[3] || column;
returned.push(token);
}
if (returned.length) {
token = [
returned[0][0],
returned.map((token) => token[1]).join(''),
returned[0][2],
returned[0][3],
line,
column,
];
}
return token;
}
return Object.assign({}, tokenizer, {
back,
nextToken,
});
}
module.exports = templateTokenize;