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dbcs-codec.js	19.98 MB	View DL Edit
dbcs-data.js	8.67 MB	View DL Edit
index.js	670 B	View DL Edit
internal.js	6.41 MB	View DL Edit
sbcs-codec.js	2.06 MB	View DL Edit
sbcs-data-generated.js	31.28 MB	View DL Edit
sbcs-data.js	4.42 MB	View DL Edit
utf7.js	8.38 MB	View DL Edit
utf16.js	4.98 MB	View DL Edit
utf32.js	8.85 MB	View DL Edit

Edit file: /home/benbot/bot/server/node_modules/raw-body/node_modules/iconv-lite/encodings/utf7.js

"use strict"
var Buffer = require("safer-buffer").Buffer

// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152
// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3

exports.utf7 = Utf7Codec
exports.unicode11utf7 = "utf7" // Alias UNICODE-1-1-UTF-7
function Utf7Codec (codecOptions, iconv) {
  this.iconv = iconv
};

Utf7Codec.prototype.encoder = Utf7Encoder
Utf7Codec.prototype.decoder = Utf7Decoder
Utf7Codec.prototype.bomAware = true

// -- Encoding

// Why scape ()?./?
// eslint-disable-next-line no-useless-escape
var nonDirectChars = /[^A-Za-z0-9',-\.\/:\? \n\r\t]+/g

function Utf7Encoder (options, codec) {
  this.iconv = codec.iconv
}

Utf7Encoder.prototype.write = function (str) {
  // Naive implementation.
  // Non-direct chars are encoded as "+<base64>-"; single "+" char is encoded as "+-".
  return Buffer.from(str.replace(nonDirectChars, function (chunk) {
    return "+" + (chunk === "+"
      ? ""
      : this.iconv.encode(chunk, "utf16-be").toString("base64").replace(/=+$/, "")) +
            "-"
  }.bind(this)))
}

Utf7Encoder.prototype.end = function () {
}

// -- Decoding

function Utf7Decoder (options, codec) {
  this.iconv = codec.iconv
  this.inBase64 = false
  this.base64Accum = ""
}

// Why scape /?
// eslint-disable-next-line no-useless-escape
var base64Regex = /[A-Za-z0-9\/+]/
var base64Chars = []
for (var i = 0; i < 256; i++) { base64Chars[i] = base64Regex.test(String.fromCharCode(i)) }

var plusChar = "+".charCodeAt(0)
var minusChar = "-".charCodeAt(0)
var andChar = "&".charCodeAt(0)

Utf7Decoder.prototype.write = function (buf) {
  var res = ""; var lastI = 0
  var inBase64 = this.inBase64
  var base64Accum = this.base64Accum

// The decoder is more involved as we must handle chunks in stream.

for (var i = 0; i < buf.length; i++) {
    if (!inBase64) { // We're in direct mode.
      // Write direct chars until '+'
      if (buf[i] == plusChar) {
        res += this.iconv.decode(buf.slice(lastI, i), "ascii") // Write direct chars.
        lastI = i + 1
        inBase64 = true
      }
    } else { // We decode base64.
      if (!base64Chars[buf[i]]) { // Base64 ended.
        if (i == lastI && buf[i] == minusChar) { // "+-" -> "+"
          res += "+"
        } else {
          var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii")
          res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
        }

if (buf[i] != minusChar) // Minus is absorbed after base64.
        { i-- }

lastI = i + 1
        inBase64 = false
        base64Accum = ""
      }
    }
  }

if (!inBase64) {
    res += this.iconv.decode(buf.slice(lastI), "ascii") // Write direct chars.
  } else {
    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii")

var canBeDecoded = b64str.length - (b64str.length % 8) // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
    base64Accum = b64str.slice(canBeDecoded) // The rest will be decoded in future.
    b64str = b64str.slice(0, canBeDecoded)

res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
  }

this.inBase64 = inBase64
  this.base64Accum = base64Accum

return res
}

Utf7Decoder.prototype.end = function () {
  var res = ""
  if (this.inBase64 && this.base64Accum.length > 0) { res = this.iconv.decode(Buffer.from(this.base64Accum, "base64"), "utf16-be") }

this.inBase64 = false
  this.base64Accum = ""
  return res
}

// UTF-7-IMAP codec.
// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)
// Differences:
//  * Base64 part is started by "&" instead of "+"
//  * Direct characters are 0x20-0x7E, except "&" (0x26)
//  * In Base64, "," is used instead of "/"
//  * Base64 must not be used to represent direct characters.
//  * No implicit shift back from Base64 (should always end with '-')
//  * String must end in non-shifted position.
//  * "-&" while in base64 is not allowed.

exports.utf7imap = Utf7IMAPCodec
function Utf7IMAPCodec (codecOptions, iconv) {
  this.iconv = iconv
};

Utf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder
Utf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder
Utf7IMAPCodec.prototype.bomAware = true

// -- Encoding

function Utf7IMAPEncoder (options, codec) {
  this.iconv = codec.iconv
  this.inBase64 = false
  this.base64Accum = Buffer.alloc(6)
  this.base64AccumIdx = 0
}

Utf7IMAPEncoder.prototype.write = function (str) {
  var inBase64 = this.inBase64
  var base64Accum = this.base64Accum
  var base64AccumIdx = this.base64AccumIdx
  var buf = Buffer.alloc(str.length * 5 + 10); var bufIdx = 0

for (var i = 0; i < str.length; i++) {
    var uChar = str.charCodeAt(i)
    if (uChar >= 0x20 && uChar <= 0x7E) { // Direct character or '&'.
      if (inBase64) {
        if (base64AccumIdx > 0) {
          bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString("base64").replace(/\//g, ",").replace(/=+$/, ""), bufIdx)
          base64AccumIdx = 0
        }

buf[bufIdx++] = minusChar // Write '-', then go to direct mode.
        inBase64 = false
      }

if (!inBase64) {
        buf[bufIdx++] = uChar // Write direct character

if (uChar === andChar)  // Ampersand -> '&-'
        { buf[bufIdx++] = minusChar }
      }
    } else { // Non-direct character
      if (!inBase64) {
        buf[bufIdx++] = andChar // Write '&', then go to base64 mode.
        inBase64 = true
      }
      if (inBase64) {
        base64Accum[base64AccumIdx++] = uChar >> 8
        base64Accum[base64AccumIdx++] = uChar & 0xFF

if (base64AccumIdx == base64Accum.length) {
          bufIdx += buf.write(base64Accum.toString("base64").replace(/\//g, ","), bufIdx)
          base64AccumIdx = 0
        }
      }
    }
  }

this.inBase64 = inBase64
  this.base64AccumIdx = base64AccumIdx

return buf.slice(0, bufIdx)
}

Utf7IMAPEncoder.prototype.end = function () {
  var buf = Buffer.alloc(10); var bufIdx = 0
  if (this.inBase64) {
    if (this.base64AccumIdx > 0) {
      bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString("base64").replace(/\//g, ",").replace(/=+$/, ""), bufIdx)
      this.base64AccumIdx = 0
    }

buf[bufIdx++] = minusChar // Write '-', then go to direct mode.
    this.inBase64 = false
  }

return buf.slice(0, bufIdx)
}

// -- Decoding

function Utf7IMAPDecoder (options, codec) {
  this.iconv = codec.iconv
  this.inBase64 = false
  this.base64Accum = ""
}

var base64IMAPChars = base64Chars.slice()
base64IMAPChars[",".charCodeAt(0)] = true

Utf7IMAPDecoder.prototype.write = function (buf) {
  var res = ""; var lastI = 0
  var inBase64 = this.inBase64
  var base64Accum = this.base64Accum

// The decoder is more involved as we must handle chunks in stream.
  // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).

for (var i = 0; i < buf.length; i++) {
    if (!inBase64) { // We're in direct mode.
      // Write direct chars until '&'
      if (buf[i] == andChar) {
        res += this.iconv.decode(buf.slice(lastI, i), "ascii") // Write direct chars.
        lastI = i + 1
        inBase64 = true
      }
    } else { // We decode base64.
      if (!base64IMAPChars[buf[i]]) { // Base64 ended.
        if (i == lastI && buf[i] == minusChar) { // "&-" -> "&"
          res += "&"
        } else {
          var b64str = base64Accum + this.iconv.decode(buf.slice(lastI, i), "ascii").replace(/,/g, "/")
          res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
        }

if (buf[i] != minusChar) // Minus may be absorbed after base64.
        { i-- }

lastI = i + 1
        inBase64 = false
        base64Accum = ""
      }
    }
  }

if (!inBase64) {
    res += this.iconv.decode(buf.slice(lastI), "ascii") // Write direct chars.
  } else {
    var b64str = base64Accum + this.iconv.decode(buf.slice(lastI), "ascii").replace(/,/g, "/")

var canBeDecoded = b64str.length - (b64str.length % 8) // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
    base64Accum = b64str.slice(canBeDecoded) // The rest will be decoded in future.
    b64str = b64str.slice(0, canBeDecoded)

res += this.iconv.decode(Buffer.from(b64str, "base64"), "utf16-be")
  }

this.inBase64 = inBase64
  this.base64Accum = base64Accum

return res
}

Utf7IMAPDecoder.prototype.end = function () {
  var res = ""
  if (this.inBase64 && this.base64Accum.length > 0) { res = this.iconv.decode(Buffer.from(this.base64Accum, "base64"), "utf16-be") }

this.inBase64 = false
  this.base64Accum = ""
  return res
}

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