infosecn1nja
/
CyberChef
mirror of https://github.com/infosecn1nja/CyberChef.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Add "{To,From} EBCDIC" operations 

This adds operations
+ "To EBCDIC"
+ "From EBCDIC"

This makes use of the npm codepage package but it is not installed as a
dependency.

Instead I used the `make.sh` script to export pages 37 and 500.

To my knowledge there is no way currently to only import individual code pages
from the npm package (hence the included script).

If we were to import the package directly it increases the build size by
2.7MB.
feature-extract-files
toby 2017-05-07 18:07:56 -04:00
parent 31e5d785fe
commit 3c15bd9e29
5 changed files with 662 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/core/config/OperationConfig.js
View File

@ -3249,6 +3249,44 @@ const OperationConfig = {
},
]
},
"To EBCDIC": {
description: [
"This operation converts ASCII text to EBCDIC.",
"<br>",
"You can choose between a few versions of EBCDIC.",
"<br>",
"EBCDIC is a proprietary encoding pre-dating ASCII that originated at IBM.",
].join("\n"),
run: CharEnc.runToEBCDIC,
inputType: "string",
outputType: "byteArray",
args: [
{
name: "EBCDIC version",
type: "option",
value: Object.keys(CharEnc.EBCDIC_CODEPAGES_MAPPING),
},
]
},
"From EBCDIC": {
description: [
"This operation converts ASCII text from EBCDIC.",
"<br>",
"You can choose between a few versions of EBCDIC.",
"<br>",
"EBCDIC is a proprietary encoding pre-dating ASCII that originated at IBM.",
].join("\n"),
run: CharEnc.runFromEBCDIC,
inputType: "byteArray",
outputType: "string",
args: [
{
name: "EBCDIC version",
type: "option",
value: Object.keys(CharEnc.EBCDIC_CODEPAGES_MAPPING),
},
]
},
};
export default OperationConfig;

520
src/core/lib/codepage.js Normal file
View File

@ -0,0 +1,520 @@
/**
* @author tlwr [toby@toby.codes]
*
* This file is the output of the make.sh script from the npm package `codepage`.
*/
/* output (C) 2013-present SheetJS -- http://sheetjs.com */
/*jshint -W100 */
var cptable = { version: "1.8.0" };
cptable[37] = (function () { var d = "\u0000\u0001\u0002\u0003œ\t†—Ž\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013…\b‡\u0018\u0019’\u001c\u001d\u001e\u001f€‚ƒ„\n\u0017\u001bˆ‰Š‹Œ\u0005\u0006\u0007‘\u0016“”•–\u0004˜™š›\u0014\u0015ž\u001a  âäàáãåçñ¢.<(+|&éêëèíîïìß!$*);¬-/ÂÄÀÁÃÅÇѦ,%_>?øÉÊËÈÍÎÏÌ`:#@'=\"Øabcdefghi«»ðýþ±°jklmnopqrªºæ¸Æ¤µ~stuvwxyz¡¿ÐÝÞ®^£¥·©§¶¼½¾[]¯¨´×{ABCDEFGHI­ôöòóõ}JKLMNOPQR¹ûüùúÿ\\÷STUVWXYZ²ÔÖÒÓÕ0123456789³ÛÜÙڟ", D = [], e = {}; for (var i = 0; i != d.length; ++i) { if (d.charCodeAt(i) !== 0xFFFD) e[d.charAt(i)] = i; D[i] = d.charAt(i); } return { "enc": e, "dec": D }; })();
cptable[500] = (function () { var d = "\u0000\u0001\u0002\u0003œ\t†—Ž\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013…\b‡\u0018\u0019’\u001c\u001d\u001e\u001f€‚ƒ„\n\u0017\u001bˆ‰Š‹Œ\u0005\u0006\u0007‘\u0016“”•–\u0004˜™š›\u0014\u0015ž\u001a  âäàáãåçñ[.<(+!&éêëèíîïìß]$*);^-/ÂÄÀÁÃÅÇѦ,%_>?øÉÊËÈÍÎÏÌ`:#@'=\"Øabcdefghi«»ðýþ±°jklmnopqrªºæ¸Æ¤µ~stuvwxyz¡¿ÐÝÞ®¢£¥·©§¶¼½¾¬|¯¨´×{ABCDEFGHI­ôöòóõ}JKLMNOPQR¹ûüùúÿ\\÷STUVWXYZ²ÔÖÒÓÕ0123456789³ÛÜÙڟ", D = [], e = {}; for (var i = 0; i != d.length; ++i) { if (d.charCodeAt(i) !== 0xFFFD) e[d.charAt(i)] = i; D[i] = d.charAt(i); } return { "enc": e, "dec": D }; })();
/* cputils.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* vim: set ft=javascript: */
/*jshint newcap: false */
(function (cpt) {
"use strict";
var magic = {
"1200": "utf16le",
"1201": "utf16be",
"12000": "utf32le",
"12001": "utf32be",
"16969": "utf64le",
"20127": "ascii",
"65000": "utf7",
"65001": "utf8"
};
var sbcs_cache = [874, 1250, 1251, 1252, 1253, 1254, 1255, 1256, 10000];
var dbcs_cache = [932, 936, 949, 950];
var magic_cache = [65001];
var magic_decode = {};
var magic_encode = {};
var cpdcache = {};
var cpecache = {};
var sfcc = function sfcc(x) { return String.fromCharCode(x); };
var cca = function cca(x) { return x.charCodeAt(0); };
var has_buf = (typeof Buffer !== 'undefined');
if (has_buf) {
var mdl = 1024, mdb = new Buffer(mdl);
var make_EE = function make_EE(E) {
var EE = new Buffer(65536);
for (var i = 0; i < 65536; ++i) EE[i] = 0;
var keys = Object.keys(E), len = keys.length;
for (var ee = 0, e = keys[ee]; ee < len; ++ee) {
if (!(e = keys[ee])) continue;
EE[e.charCodeAt(0)] = E[e];
}
return EE;
};
var sbcs_encode = function make_sbcs_encode(cp) {
var EE = make_EE(cpt[cp].enc);
return function sbcs_e(data, ofmt) {
var len = data.length;
var out, i = 0, j = 0, D = 0, w = 0;
if (typeof data === 'string') {
out = new Buffer(len);
for (i = 0; i < len; ++i) out[i] = EE[data.charCodeAt(i)];
} else if (Buffer.isBuffer(data)) {
out = new Buffer(2 * len);
j = 0;
for (i = 0; i < len; ++i) {
D = data[i];
if (D < 128) out[j++] = EE[D];
else if (D < 224) { out[j++] = EE[((D & 31) << 6) + (data[i + 1] & 63)]; ++i; }
else if (D < 240) { out[j++] = EE[((D & 15) << 12) + ((data[i + 1] & 63) << 6) + (data[i + 2] & 63)]; i += 2; }
else {
w = ((D & 7) << 18) + ((data[i + 1] & 63) << 12) + ((data[i + 2] & 63) << 6) + (data[i + 3] & 63); i += 3;
if (w < 65536) out[j++] = EE[w];
else { w -= 65536; out[j++] = EE[0xD800 + ((w >> 10) & 1023)]; out[j++] = EE[0xDC00 + (w & 1023)]; }
}
}
out = out.slice(0, j);
} else {
out = new Buffer(len);
for (i = 0; i < len; ++i) out[i] = EE[data[i].charCodeAt(0)];
}
if (!ofmt || ofmt === 'buf') return out;
if (ofmt !== 'arr') return out.toString('binary');
return [].slice.call(out);
};
};
var sbcs_decode = function make_sbcs_decode(cp) {
var D = cpt[cp].dec;
var DD = new Buffer(131072), d = 0, c = "";
for (d = 0; d < D.length; ++d) {
if (!(c = D[d])) continue;
var w = c.charCodeAt(0);
DD[2 * d] = w & 255; DD[2 * d + 1] = w >> 8;
}
return function sbcs_d(data) {
var len = data.length, i = 0, j = 0;
if (2 * len > mdl) { mdl = 2 * len; mdb = new Buffer(mdl); }
if (Buffer.isBuffer(data)) {
for (i = 0; i < len; i++) {
j = 2 * data[i];
mdb[2 * i] = DD[j]; mdb[2 * i + 1] = DD[j + 1];
}
} else if (typeof data === "string") {
for (i = 0; i < len; i++) {
j = 2 * data.charCodeAt(i);
mdb[2 * i] = DD[j]; mdb[2 * i + 1] = DD[j + 1];
}
} else {
for (i = 0; i < len; i++) {
j = 2 * data[i];
mdb[2 * i] = DD[j]; mdb[2 * i + 1] = DD[j + 1];
}
}
return mdb.slice(0, 2 * len).toString('ucs2');
};
};
var dbcs_encode = function make_dbcs_encode(cp) {
var E = cpt[cp].enc;
var EE = new Buffer(131072);
for (var i = 0; i < 131072; ++i) EE[i] = 0;
var keys = Object.keys(E);
for (var ee = 0, e = keys[ee]; ee < keys.length; ++ee) {
if (!(e = keys[ee])) continue;
var f = e.charCodeAt(0);
EE[2 * f] = E[e] & 255; EE[2 * f + 1] = E[e] >> 8;
}
return function dbcs_e(data, ofmt) {
var len = data.length, out = new Buffer(2 * len), i = 0, j = 0, jj = 0, k = 0, D = 0;
if (typeof data === 'string') {
for (i = k = 0; i < len; ++i) {
j = data.charCodeAt(i) * 2;
out[k++] = EE[j + 1] || EE[j]; if (EE[j + 1] > 0) out[k++] = EE[j];
}
out = out.slice(0, k);
} else if (Buffer.isBuffer(data)) {
for (i = k = 0; i < len; ++i) {
D = data[i];
if (D < 128) j = D;
else if (D < 224) { j = ((D & 31) << 6) + (data[i + 1] & 63); ++i; }
else if (D < 240) { j = ((D & 15) << 12) + ((data[i + 1] & 63) << 6) + (data[i + 2] & 63); i += 2; }
else { j = ((D & 7) << 18) + ((data[i + 1] & 63) << 12) + ((data[i + 2] & 63) << 6) + (data[i + 3] & 63); i += 3; }
if (j < 65536) { j *= 2; out[k++] = EE[j + 1] || EE[j]; if (EE[j + 1] > 0) out[k++] = EE[j]; }
else {
jj = j - 65536;
j = 2 * (0xD800 + ((jj >> 10) & 1023)); out[k++] = EE[j + 1] || EE[j]; if (EE[j + 1] > 0) out[k++] = EE[j];
j = 2 * (0xDC00 + (jj & 1023)); out[k++] = EE[j + 1] || EE[j]; if (EE[j + 1] > 0) out[k++] = EE[j];
}
}
out = out.slice(0, k);
} else {
for (i = k = 0; i < len; i++) {
j = data[i].charCodeAt(0) * 2;
out[k++] = EE[j + 1] || EE[j]; if (EE[j + 1] > 0) out[k++] = EE[j];
}
}
if (!ofmt || ofmt === 'buf') return out;
if (ofmt !== 'arr') return out.toString('binary');
return [].slice.call(out);
};
};
var dbcs_decode = function make_dbcs_decode(cp) {
var D = cpt[cp].dec;
var DD = new Buffer(131072), d = 0, c, w = 0, j = 0, i = 0;
for (i = 0; i < 65536; ++i) { DD[2 * i] = 0xFF; DD[2 * i + 1] = 0xFD; }
for (d = 0; d < D.length; ++d) {
if (!(c = D[d])) continue;
w = c.charCodeAt(0);
j = 2 * d;
DD[j] = w & 255; DD[j + 1] = w >> 8;
}
return function dbcs_d(data) {
var len = data.length, out = new Buffer(2 * len), i = 0, j = 0, k = 0;
if (Buffer.isBuffer(data)) {
for (i = 0; i < len; i++) {
j = 2 * data[i];
if (DD[j] === 0xFF && DD[j + 1] === 0xFD) { j = 2 * ((data[i] << 8) + data[i + 1]); ++i; }
out[k++] = DD[j]; out[k++] = DD[j + 1];
}
} else if (typeof data === "string") {
for (i = 0; i < len; i++) {
j = 2 * data.charCodeAt(i);
if (DD[j] === 0xFF && DD[j + 1] === 0xFD) { j = 2 * ((data.charCodeAt(i) << 8) + data.charCodeAt(i + 1)); ++i; }
out[k++] = DD[j]; out[k++] = DD[j + 1];
}
} else {
for (i = 0; i < len; i++) {
j = 2 * data[i];
if (DD[j] === 0xFF && DD[j + 1] === 0xFD) { j = 2 * ((data[i] << 8) + data[i + 1]); ++i; }
out[k++] = DD[j]; out[k++] = DD[j + 1];
}
}
return out.slice(0, k).toString('ucs2');
};
};
magic_decode[65001] = function utf8_d(data) {
if (typeof data === "string") return utf8_d(data.split("").map(cca));
var len = data.length, w = 0, ww = 0;
if (4 * len > mdl) { mdl = 4 * len; mdb = new Buffer(mdl); }
var i = 0;
if (len >= 3 && data[0] == 0xEF) if (data[1] == 0xBB && data[2] == 0xBF) i = 3;
for (var j = 1, k = 0, D = 0; i < len; i += j) {
j = 1; D = data[i];
if (D < 128) w = D;
else if (D < 224) { w = (D & 31) * 64 + (data[i + 1] & 63); j = 2; }
else if (D < 240) { w = ((D & 15) << 12) + (data[i + 1] & 63) * 64 + (data[i + 2] & 63); j = 3; }
else { w = (D & 7) * 262144 + ((data[i + 1] & 63) << 12) + (data[i + 2] & 63) * 64 + (data[i + 3] & 63); j = 4; }
if (w < 65536) { mdb[k++] = w & 255; mdb[k++] = w >> 8; }
else {
w -= 65536; ww = 0xD800 + ((w >> 10) & 1023); w = 0xDC00 + (w & 1023);
mdb[k++] = ww & 255; mdb[k++] = ww >>> 8; mdb[k++] = w & 255; mdb[k++] = (w >>> 8) & 255;
}
}
return mdb.slice(0, k).toString('ucs2');
};
magic_encode[65001] = function utf8_e(data, ofmt) {
if (has_buf && Buffer.isBuffer(data)) {
if (!ofmt || ofmt === 'buf') return data;
if (ofmt !== 'arr') return data.toString('binary');
return [].slice.call(data);
}
var len = data.length, w = 0, ww = 0, j = 0;
var direct = typeof data === "string";
if (4 * len > mdl) { mdl = 4 * len; mdb = new Buffer(mdl); }
for (var i = 0; i < len; ++i) {
w = direct ? data.charCodeAt(i) : data[i].charCodeAt(0);
if (w <= 0x007F) mdb[j++] = w;
else if (w <= 0x07FF) {
mdb[j++] = 192 + (w >> 6);
mdb[j++] = 128 + (w & 63);
} else if (w >= 0xD800 && w <= 0xDFFF) {
w -= 0xD800; ++i;
ww = (direct ? data.charCodeAt(i) : data[i].charCodeAt(0)) - 0xDC00 + (w << 10);
mdb[j++] = 240 + ((ww >>> 18) & 0x07);
mdb[j++] = 144 + ((ww >>> 12) & 0x3F);
mdb[j++] = 128 + ((ww >>> 6) & 0x3F);
mdb[j++] = 128 + (ww & 0x3F);
} else {
mdb[j++] = 224 + (w >> 12);
mdb[j++] = 128 + ((w >> 6) & 63);
mdb[j++] = 128 + (w & 63);
}
}
if (!ofmt || ofmt === 'buf') return mdb.slice(0, j);
if (ofmt !== 'arr') return mdb.slice(0, j).toString('binary');
return [].slice.call(mdb, 0, j);
};
}
var encache = function encache() {
if (has_buf) {
if (cpdcache[sbcs_cache[0]]) return;
var i = 0, s = 0;
for (i = 0; i < sbcs_cache.length; ++i) {
s = sbcs_cache[i];
if (cpt[s]) {
cpdcache[s] = sbcs_decode(s);
cpecache[s] = sbcs_encode(s);
}
}
for (i = 0; i < dbcs_cache.length; ++i) {
s = dbcs_cache[i];
if (cpt[s]) {
cpdcache[s] = dbcs_decode(s);
cpecache[s] = dbcs_encode(s);
}
}
for (i = 0; i < magic_cache.length; ++i) {
s = magic_cache[i];
if (magic_decode[s]) cpdcache[s] = magic_decode[s];
if (magic_encode[s]) cpecache[s] = magic_encode[s];
}
}
};
var null_enc = function (data, ofmt) { return ""; };
var cp_decache = function cp_decache(cp) { delete cpdcache[cp]; delete cpecache[cp]; };
var decache = function decache() {
if (has_buf) {
if (!cpdcache[sbcs_cache[0]]) return;
sbcs_cache.forEach(cp_decache);
dbcs_cache.forEach(cp_decache);
magic_cache.forEach(cp_decache);
}
last_enc = null_enc; last_cp = 0;
};
var cache = {
encache: encache,
decache: decache,
sbcs: sbcs_cache,
dbcs: dbcs_cache
};
encache();
var BM = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var SetD = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'(),-./:?";
var last_enc = null_enc, last_cp = 0;
var encode = function encode(cp, data, ofmt) {
if (cp === last_cp && last_enc) { return last_enc(data, ofmt); }
if (cpecache[cp]) { last_enc = cpecache[last_cp = cp]; return last_enc(data, ofmt); }
if (has_buf && Buffer.isBuffer(data)) data = data.toString('utf8');
var len = data.length;
var out = has_buf ? new Buffer(4 * len) : [], w = 0, i = 0, j = 0, ww = 0;
var C = cpt[cp], E, M = "";
var isstr = typeof data === 'string';
if (C && (E = C.enc)) for (i = 0; i < len; ++i, ++j) {
w = E[isstr ? data.charAt(i) : data[i]];
if (w > 255) {
out[j] = w >> 8;
out[++j] = w & 255;
} else out[j] = w & 255;
}
else if ((M = magic[cp])) switch (M) {
case "utf8":
if (has_buf && isstr) { out = new Buffer(data, M); j = out.length; break; }
for (i = 0; i < len; ++i, ++j) {
w = isstr ? data.charCodeAt(i) : data[i].charCodeAt(0);
if (w <= 0x007F) out[j] = w;
else if (w <= 0x07FF) {
out[j] = 192 + (w >> 6);
out[++j] = 128 + (w & 63);
} else if (w >= 0xD800 && w <= 0xDFFF) {
w -= 0xD800;
ww = (isstr ? data.charCodeAt(++i) : data[++i].charCodeAt(0)) - 0xDC00 + (w << 10);
out[j] = 240 + ((ww >>> 18) & 0x07);
out[++j] = 144 + ((ww >>> 12) & 0x3F);
out[++j] = 128 + ((ww >>> 6) & 0x3F);
out[++j] = 128 + (ww & 0x3F);
} else {
out[j] = 224 + (w >> 12);
out[++j] = 128 + ((w >> 6) & 63);
out[++j] = 128 + (w & 63);
}
}
break;
case "ascii":
if (has_buf && typeof data === "string") { out = new Buffer(data, M); j = out.length; break; }
for (i = 0; i < len; ++i, ++j) {
w = isstr ? data.charCodeAt(i) : data[i].charCodeAt(0);
if (w <= 0x007F) out[j] = w;
else throw new Error("bad ascii " + w);
}
break;
case "utf16le":
if (has_buf && typeof data === "string") { out = new Buffer(data, M); j = out.length; break; }
for (i = 0; i < len; ++i) {
w = isstr ? data.charCodeAt(i) : data[i].charCodeAt(0);
out[j++] = w & 255;
out[j++] = w >> 8;
}
break;
case "utf16be":
for (i = 0; i < len; ++i) {
w = isstr ? data.charCodeAt(i) : data[i].charCodeAt(0);
out[j++] = w >> 8;
out[j++] = w & 255;
}
break;
case "utf32le":
for (i = 0; i < len; ++i) {
w = isstr ? data.charCodeAt(i) : data[i].charCodeAt(0);
if (w >= 0xD800 && w <= 0xDFFF) w = 0x10000 + ((w - 0xD800) << 10) + (data[++i].charCodeAt(0) - 0xDC00);
out[j++] = w & 255; w >>= 8;
out[j++] = w & 255; w >>= 8;
out[j++] = w & 255; w >>= 8;
out[j++] = w & 255;
}
break;
case "utf32be":
for (i = 0; i < len; ++i) {
w = isstr ? data.charCodeAt(i) : data[i].charCodeAt(0);
if (w >= 0xD800 && w <= 0xDFFF) w = 0x10000 + ((w - 0xD800) << 10) + (data[++i].charCodeAt(0) - 0xDC00);
out[j + 3] = w & 255; w >>= 8;
out[j + 2] = w & 255; w >>= 8;
out[j + 1] = w & 255; w >>= 8;
out[j] = w & 255;
j += 4;
}
break;
case "utf7":
for (i = 0; i < len; i++) {
var c = isstr ? data.charAt(i) : data[i].charAt(0);
if (c === "+") { out[j++] = 0x2b; out[j++] = 0x2d; continue; }
if (SetD.indexOf(c) > -1) { out[j++] = c.charCodeAt(0); continue; }
var tt = encode(1201, c);
out[j++] = 0x2b;
out[j++] = BM.charCodeAt(tt[0] >> 2);
out[j++] = BM.charCodeAt(((tt[0] & 0x03) << 4) + ((tt[1] || 0) >> 4));
out[j++] = BM.charCodeAt(((tt[1] & 0x0F) << 2) + ((tt[2] || 0) >> 6));
out[j++] = 0x2d;
}
break;
default: throw new Error("Unsupported magic: " + cp + " " + magic[cp]);
}
else throw new Error("Unrecognized CP: " + cp);
out = out.slice(0, j);
if (!has_buf) return (ofmt == 'str') ? (out).map(sfcc).join("") : out;
if (!ofmt || ofmt === 'buf') return out;
if (ofmt !== 'arr') return out.toString('binary');
return [].slice.call(out);
};
var decode = function decode(cp, data) {
var F; if ((F = cpdcache[cp])) return F(data);
if (typeof data === "string") return decode(cp, data.split("").map(cca));
var len = data.length, out = new Array(len), s = "", w = 0, i = 0, j = 1, k = 0, ww = 0;
var C = cpt[cp], D, M = "";
if (C && (D = C.dec)) {
for (i = 0; i < len; i += j) {
j = 2;
s = D[(data[i] << 8) + data[i + 1]];
if (!s) {
j = 1;
s = D[data[i]];
}
if (!s) throw new Error('Unrecognized code: ' + data[i] + ' ' + data[i + j - 1] + ' ' + i + ' ' + j + ' ' + D[data[i]]);
out[k++] = s;
}
}
else if ((M = magic[cp])) switch (M) {
case "utf8":
if (len >= 3 && data[0] == 0xEF) if (data[1] == 0xBB && data[2] == 0xBF) i = 3;
for (; i < len; i += j) {
j = 1;
if (data[i] < 128) w = data[i];
else if (data[i] < 224) { w = (data[i] & 31) * 64 + (data[i + 1] & 63); j = 2; }
else if (data[i] < 240) { w = ((data[i] & 15) << 12) + (data[i + 1] & 63) * 64 + (data[i + 2] & 63); j = 3; }
else { w = (data[i] & 7) * 262144 + ((data[i + 1] & 63) << 12) + (data[i + 2] & 63) * 64 + (data[i + 3] & 63); j = 4; }
if (w < 65536) { out[k++] = String.fromCharCode(w); }
else {
w -= 65536; ww = 0xD800 + ((w >> 10) & 1023); w = 0xDC00 + (w & 1023);
out[k++] = String.fromCharCode(ww); out[k++] = String.fromCharCode(w);
}
}
break;
case "ascii":
if (has_buf && Buffer.isBuffer(data)) return data.toString(M);
for (i = 0; i < len; i++) out[i] = String.fromCharCode(data[i]);
k = len; break;
case "utf16le":
if (len >= 2 && data[0] == 0xFF) if (data[1] == 0xFE) i = 2;
if (has_buf && Buffer.isBuffer(data)) return data.toString(M);
j = 2;
for (; i + 1 < len; i += j) {
out[k++] = String.fromCharCode((data[i + 1] << 8) + data[i]);
}
break;
case "utf16be":
if (len >= 2 && data[0] == 0xFE) if (data[1] == 0xFF) i = 2;
j = 2;
for (; i + 1 < len; i += j) {
out[k++] = String.fromCharCode((data[i] << 8) + data[i + 1]);
}
break;
case "utf32le":
if (len >= 4 && data[0] == 0xFF) if (data[1] == 0xFE && data[2] === 0 && data[3] === 0) i = 4;
j = 4;
for (; i < len; i += j) {
w = (data[i + 3] << 24) + (data[i + 2] << 16) + (data[i + 1] << 8) + (data[i]);
if (w > 0xFFFF) {
w -= 0x10000;
out[k++] = String.fromCharCode(0xD800 + ((w >> 10) & 0x3FF));
out[k++] = String.fromCharCode(0xDC00 + (w & 0x3FF));
}
else out[k++] = String.fromCharCode(w);
}
break;
case "utf32be":
if (len >= 4 && data[3] == 0xFF) if (data[2] == 0xFE && data[1] === 0 && data[0] === 0) i = 4;
j = 4;
for (; i < len; i += j) {
w = (data[i] << 24) + (data[i + 1] << 16) + (data[i + 2] << 8) + (data[i + 3]);
if (w > 0xFFFF) {
w -= 0x10000;
out[k++] = String.fromCharCode(0xD800 + ((w >> 10) & 0x3FF));
out[k++] = String.fromCharCode(0xDC00 + (w & 0x3FF));
}
else out[k++] = String.fromCharCode(w);
}
break;
case "utf7":
if (len >= 4 && data[0] == 0x2B && data[1] == 0x2F && data[2] == 0x76) {
if (len >= 5 && data[3] == 0x38 && data[4] == 0x2D) i = 5;
else if (data[3] == 0x38 || data[3] == 0x39 || data[3] == 0x2B || data[3] == 0x2F) i = 4;
}
for (; i < len; i += j) {
if (data[i] !== 0x2b) { j = 1; out[k++] = String.fromCharCode(data[i]); continue; }
j = 1;
if (data[i + 1] === 0x2d) { j = 2; out[k++] = "+"; continue; }
while (String.fromCharCode(data[i + j]).match(/[A-Za-z0-9+\/]/)) j++;
var dash = 0;
if (data[i + j] === 0x2d) { ++j; dash = 1; }
var tt = [];
var o64 = "";
var c1 = 0, c2 = 0, c3 = 0;
var e1 = 0, e2 = 0, e3 = 0, e4 = 0;
for(var l = 1; l < j - dash;) {
e1 = BM.indexOf(String.fromCharCode(data[i + l++]));
e2 = BM.indexOf(String.fromCharCode(data[i + l++]));
c1 = e1 << 2 | e2 >> 4;
tt.push(c1);
e3 = BM.indexOf(String.fromCharCode(data[i + l++]));
if (e3 === -1) break;
c2 = (e2 & 15) << 4 | e3 >> 2;
tt.push(c2);
e4 = BM.indexOf(String.fromCharCode(data[i + l++]));
if (e4 === -1) break;
c3 = (e3 & 3) << 6 | e4;
if (e4 < 64) tt.push(c3);
}
o64 = decode(1201, tt);
for (l = 0; l < o64.length; ++l) out[k++] = o64.charAt(l);
}
break;
default: throw new Error("Unsupported magic: " + cp + " " + magic[cp]);
}
else throw new Error("Unrecognized CP: " + cp);
return out.slice(0, k).join("");
};
var hascp = function hascp(cp) { return !!(cpt[cp] || magic[cp]); };
cpt.utils = { decode: decode, encode: encode, hascp: hascp, magic: magic, cache: cache };
}(cptable));
export default cptable;

47
src/core/operations/CharEnc.js
View File

@ -1,3 +1,4 @@
import cptable from "../lib/codepage.js";
import Utils from "../Utils.js";
import CryptoJS from "crypto-js";
@ -45,6 +46,52 @@ const CharEnc = {
}
},
/**
*
* @author tlwr [toby@toby.codes]
*
* @constant
* @default
*/
EBCDIC_CODEPAGES_MAPPING: {
"IBM EBCDIC International": 500,
"IBM EBCDIC US-Canada": 37,
},
/**
* To EBCDIC operation.
*
* @author tlwr [toby@toby.codes]
*
* @param {string} input
* @param {Object[]} args
* @returns {byteArray}
*/
runToEBCDIC: function(input, args) {
let pageNum = CharEnc.EBCDIC_CODEPAGES_MAPPING[args[0]];
let output = cptable.utils.encode(pageNum, input);
return Array.from(output);
},
/**
* From EBCDIC operation.
*
* @author tlwr [toby@toby.codes]
*
* @param {byteArray} input
* @param {Object[]} args
* @returns {string}
*/
runFromEBCDIC: function(input, args) {
let pageNum = CharEnc.EBCDIC_CODEPAGES_MAPPING[args[0]];
let output = cptable.utils.decode(pageNum, input);
return output;
},
};
export default CharEnc;

1
test/index.js
View File

@ -13,6 +13,7 @@ import "babel-polyfill";
import TestRegister from "./TestRegister.js";
import "./tests/operations/Base58.js";
import "./tests/operations/ByteRepr.js";
import "./tests/operations/CharEnc.js";
import "./tests/operations/Compress.js";
import "./tests/operations/FlowControl.js";
import "./tests/operations/MorseCode.js";

56
test/tests/operations/CharEnc.js Normal file
View File

@ -0,0 +1,56 @@
/**
* CharEnc tests.
*
* @author tlwr [toby@toby.codes]
* @copyright Crown Copyright 2017
* @license Apache-2.0
*/
import TestRegister from "../../TestRegister.js";
TestRegister.addTests([
{
name: "From EBCDIC: nothing",
input: "",
expectedOutput: "",
recipeConfig: [
{
"op": "From Hex",
"args": ["Space"]
},
{
"op": "From EBCDIC",
"args": ["IBM EBCDIC International"]
},
],
},
{
name: "From EBCDIC: hello",
input: "88 85 93 93 96",
expectedOutput: "hello",
recipeConfig: [
{
"op": "From Hex",
"args": ["Space"]
},
{
"op": "From EBCDIC",
"args": ["IBM EBCDIC International"]
},
],
},
{
name: "To EBCDIC: hello",
input: "hello",
expectedOutput: "88 85 93 93 96",
recipeConfig: [
{
"op": "To EBCDIC",
"args": ["IBM EBCDIC International"]
},
{
"op": "To Hex",
"args": ["Space"]
},
],
},
]);