Brunobkr/llama.cpp_AlgMor24_github

1"use strict";2const { isASCIIHex } = require("./infra");3 4function strictlySplitByteSequence(buf, cp) {5  const list = [];6  let last = 0;7  let i = buf.indexOf(cp);8  while (i >= 0) {9    list.push(buf.slice(last, i));10    last = i + 1;11    i = buf.indexOf(cp, last);12  }13  if (last !== buf.length) {14    list.push(buf.slice(last));15  }16  return list;17}18 19function replaceByteInByteSequence(buf, from, to) {20  let i = buf.indexOf(from);21  while (i >= 0) {22    buf[i] = to;23    i = buf.indexOf(from, i + 1);24  }25  return buf;26}27 28function percentEncode(c) {29  let hex = c.toString(16).toUpperCase();30  if (hex.length === 1) {31    hex = "0" + hex;32  }33 34  return "%" + hex;35}36 37function percentDecode(input) {38  const output = Buffer.alloc(input.byteLength);39  let ptr = 0;40  for (let i = 0; i < input.length; ++i) {41    if (input[i] !== 37 || !isASCIIHex(input[i + 1]) || !isASCIIHex(input[i + 2])) {42      output[ptr++] = input[i];43    } else {44      output[ptr++] = parseInt(input.slice(i + 1, i + 3).toString(), 16);45      i += 2;46    }47  }48  return output.slice(0, ptr);49}50 51function parseUrlencoded(input) {52  const sequences = strictlySplitByteSequence(input, 38);53  const output = [];54  for (const bytes of sequences) {55    if (bytes.length === 0) {56      continue;57    }58 59    let name;60    let value;61    const indexOfEqual = bytes.indexOf(61);62 63    if (indexOfEqual >= 0) {64      name = bytes.slice(0, indexOfEqual);65      value = bytes.slice(indexOfEqual + 1);66    } else {67      name = bytes;68      value = Buffer.alloc(0);69    }70 71    name = replaceByteInByteSequence(Buffer.from(name), 43, 32);72    value = replaceByteInByteSequence(Buffer.from(value), 43, 32);73 74    output.push([percentDecode(name).toString(), percentDecode(value).toString()]);75  }76  return output;77}78 79function serializeUrlencodedByte(input) {80  let output = "";81  for (const byte of input) {82    if (byte === 32) {83      output += "+";84    } else if (byte === 42 ||85               byte === 45 ||86               byte === 46 ||87               (byte >= 48 && byte <= 57) ||88               (byte >= 65 && byte <= 90) ||89               byte === 95 ||90               (byte >= 97 && byte <= 122)) {91      output += String.fromCodePoint(byte);92    } else {93      output += percentEncode(byte);94    }95  }96  return output;97}98 99function serializeUrlencoded(tuples, encodingOverride = undefined) {100  let encoding = "utf-8";101  if (encodingOverride !== undefined) {102    encoding = encodingOverride;103  }104 105  let output = "";106  for (const [i, tuple] of tuples.entries()) {107    // TODO: handle encoding override108    const name = serializeUrlencodedByte(Buffer.from(tuple[0]));109    let value = tuple[1];110    if (tuple.length > 2 && tuple[2] !== undefined) {111      if (tuple[2] === "hidden" && name === "_charset_") {112        value = encoding;113      } else if (tuple[2] === "file") {114        // value is a File object115        value = value.name;116      }117    }118    value = serializeUrlencodedByte(Buffer.from(value));119    if (i !== 0) {120      output += "&";121    }122    output += `${name}=${value}`;123  }124  return output;125}126 127module.exports = {128  percentEncode,129  percentDecode,130 131  // application/x-www-form-urlencoded string parser132  parseUrlencoded(input) {133    return parseUrlencoded(Buffer.from(input));134  },135 136  // application/x-www-form-urlencoded serializer137  serializeUrlencoded138};139