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Added several more file signatures. The background magic button now highlights when a file type has been detected.

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This commit is contained in:
n1474335 2019-10-04 17:52:09 +01:00
parent 6810f38808
commit da901e20d9
4 changed files with 411 additions and 29 deletions
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395
src/core/lib/FileSignatures.mjs
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@ -415,7 +415,59 @@ export const FILE_SIGNATURES = {
6: 0x30
},
extractor: null
}
},
{
name: "AutoCAD Drawing",
extension: "dwg,123d",
mime: "application/acad",
description: "",
signature: {
0: 0x41,
1: 0x43,
2: 0x31,
3: 0x30,
4: [0x30, 0x31],
5: [0x30, 0x31, 0x32, 0x33, 0x34, 0x35],
6: 0x00
},
extractor: null
},
{
name: "AutoCAD Drawing",
extension: "dwg,dwt",
mime: "application/acad",
description: "",
signature: [
{
0: 0x41,
1: 0x43,
2: 0x31,
3: 0x30,
4: 0x31,
5: 0x38,
6: 0x00
},
{
0: 0x41,
1: 0x43,
2: 0x31,
3: 0x30,
4: 0x32,
5: 0x34,
6: 0x00
},
{
0: 0x41,
1: 0x43,
2: 0x31,
3: 0x30,
4: 0x32,
5: 0x37,
6: 0x00
}
],
extractor: null
},
],
"Video": [
{ // Place before webm
@ -614,6 +666,59 @@ export const FILE_SIGNATURES = {
},
extractor: extractFLV
},
{
name: "OGG Video",
extension: "ogv,ogm,opus,ogx",
mime: "video/ogg",
description: "",
signature: [
{
0: 0x4f, // OggS
1: 0x67,
2: 0x67,
3: 0x53,
4: 0x00,
5: 0x02,
28: 0x01,
29: 0x76, // video
30: 0x69,
31: 0x64,
32: 0x65,
33: 0x6f
},
{
0: 0x4f, // OggS
1: 0x67,
2: 0x67,
3: 0x53,
4: 0x00,
5: 0x02,
28: 0x80,
29: 0x74, // theora
30: 0x68,
31: 0x65,
32: 0x6f,
33: 0x72,
34: 0x61
},
{
0: 0x4f, // OggS
1: 0x67,
2: 0x67,
3: 0x53,
4: 0x00,
5: 0x02,
28: 0x66, // fishead
29: 0x69,
30: 0x73,
31: 0x68,
32: 0x65,
33: 0x61,
34: 0x64
}
],
extractor: null
},
],
"Audio": [
{
@ -881,6 +986,19 @@ export const FILE_SIGNATURES = {
},
extractor: null
},
{
name: "Encapsulated PostScript",
extension: "eps,ai",
mime: "application/eps",
description: "",
signature: {
0: 0xc5,
1: 0xd0,
2: 0xd3,
3: 0xc6
},
extractor: null
},
{
name: "Rich Text Format",
extension: "rtf",
@ -1074,6 +1192,22 @@ export const FILE_SIGNATURES = {
},
extractor: null
},
{
name: "WordPerfect document",
extension: "wpd,wp,wp5,wp6,wpp,bk!,wcm",
mime: "application/wordperfect",
description: "",
signature: {
0: 0xff,
1: 0x57,
2: 0x50,
3: 0x43,
7: [0x00, 0x01, 0x02],
8: 0x01,
9: 0x0a
},
extractor: null
},
{
name: "EPUB e-book",
extension: "epub",
@ -1120,7 +1254,7 @@ export const FILE_SIGNATURES = {
{
name: "Windows Portable Executable",
extension: "exe,dll,drv,vxd,sys,ocx,vbx,com,fon,scr",
mime: "application/x-msdownload",
mime: "application/vnd.microsoft.portable-executable",
description: "",
signature: {
0: 0x4d,
@ -1131,7 +1265,7 @@ export const FILE_SIGNATURES = {
extractor: extractMZPE
},
{
name: "Executable and Linkable Format file",
name: "Executable and Linkable Format",
extension: "elf,bin,axf,o,prx,so",
mime: "application/x-executable",
description: "Executable and Linkable Format file. No standard file extension.",
@ -1144,7 +1278,7 @@ export const FILE_SIGNATURES = {
extractor: extractELF
},
{
name: "MacOS Mach-O object file",
name: "MacOS Mach-O object",
extension: "dylib",
mime: "application/octet-stream",
description: "",
@ -1161,7 +1295,7 @@ export const FILE_SIGNATURES = {
extractor: null
},
{
name: "MacOS Mach-O 64-bit object file",
name: "MacOS Mach-O 64-bit object",
extension: "dylib",
mime: "application/octet-stream",
description: "",
@ -1549,7 +1683,7 @@ export const FILE_SIGNATURES = {
extractor: null
},
{
name: "Microsoft Cabinet file",
name: "Microsoft Cabinet",
extension: "cab",
mime: "vnd.ms-cab-compressed",
description: "",
@ -1578,10 +1712,27 @@ export const FILE_SIGNATURES = {
},
extractor: null
},
{
name: "lzop compressed",
extension: "lzop,lzo",
mime: "application/x-lzop",
description: "",
signature: {
0: 0x89,
1: 0x4c, // LZO
2: 0x5a,
3: 0x4f,
4: 0x00,
5: 0x0d,
6: 0x0a,
7: 0x1a
},
extractor: null
},
],
"Miscellaneous": [
{
name: "UTF-8 text file",
name: "UTF-8 text",
extension: "txt",
mime: "text/plain",
description: "UTF-8 encoded Unicode byte order mark, commonly but not exclusively seen in text files.",
@ -1592,8 +1743,8 @@ export const FILE_SIGNATURES = {
},
extractor: null
},
{ // Place before UTF-16 LE file
name: "UTF-32 LE file",
{ // Place before UTF-16 LE text
name: "UTF-32 LE text",
extension: "utf32le",
mime: "charset/utf32le",
description: "Little-endian UTF-32 encoded Unicode byte order mark.",
@ -1606,7 +1757,7 @@ export const FILE_SIGNATURES = {
extractor: null
},
{
name: "UTF-16 LE file",
name: "UTF-16 LE text",
extension: "utf16le",
mime: "charset/utf16le",
description: "Little-endian UTF-16 encoded Unicode byte order mark.",
@ -1964,6 +2115,223 @@ export const FILE_SIGNATURES = {
},
extractor: null
},
{
name: "TCP Packet",
extension: "tcp",
mime: "application/tcp",
description: "",
signature: {
12: 0x08,
13: 0x00,
14: 0x45,
15: 0x00,
21: 0x00,
22: b => b >= 0x01 && b <= 0x80,
23: 0x06
},
extractor: null
},
{
name: "UDP Packet",
extension: "udp",
mime: "application/udp",
description: "",
signature: {
12: 0x08,
13: 0x00,
14: 0x45,
15: 0x00,
16: [0x00, 0x01, 0x02, 0x03, 0x04, 0x05],
22: b => b >= 0x01 && b <= 0x80,
23: 0x11
},
extractor: null
},
{
name: "Compiled HTML",
extension: "chm,chw,chi",
mime: "application/vnd.ms-htmlhelp",
description: "",
signature: {
0: 0x49, // ITSF
1: 0x54,
2: 0x53,
3: 0x46,
4: 0x03,
5: 0x00,
6: 0x00,
7: 0x00
},
extractor: null
},
{
name: "Windows Password",
extension: "pwl",
mime: "application/octet-stream",
description: "",
signature: {
0: 0xe3,
1: 0x82,
2: 0x85,
3: 0x96
},
extractor: null
},
{
name: "Bitlocker recovery key",
extension: "bitlocker",
mime: "application/octet-stream",
description: "",
signature: {
0: 0xff,
1: 0xfe,
2: 0x42,
3: 0x00,
4: 0x69,
5: 0x00,
6: 0x74,
7: 0x00,
8: 0x4c,
9: 0x00,
10: 0x6f,
11: 0x00,
12: 0x63,
13: 0x00,
14: 0x6b,
15: 0x00,
16: 0x65,
17: 0x00,
18: 0x72,
19: 0x00,
20: 0x20,
21: 0x00
},
extractor: null
},
{
name: "Certificate",
extension: "cer,cat,p7b,p7c,p7m,p7s,swz,rsa,crl,crt,der",
mime: "application/pkix-cert",
description: "",
signature: {
0: 0x30,
1: 0x82,
4: [0x06, 0x0a, 0x30]
},
extractor: null
},
{
name: "Certificate",
extension: "cat,swz,p7m",
mime: "application/vnd.ms-pki.seccat",
description: "",
signature: {
0: 0x30,
1: 0x83,
2: b => b !== 0x00,
5: 0x06,
6: 0x09
},
extractor: null
},
{
name: "PGP pubring",
extension: "pkr,gpg",
mime: "application/pgp-keys",
description: "",
signature: {
0: 0x99,
1: 0x01,
2: [0x0d, 0xa2],
3: 0x04
},
extractor: null
},
{
name: "PGP secring",
extension: "skr",
mime: "application/pgp-keys",
description: "",
signature: [
{
0: 0x95,
1: 0x01,
2: 0xcf,
3: 0x04
},
{
0: 0x95,
1: 0x03,
2: 0xc6,
3: 0x04
}
],
extractor: null
},
{
name: "PGP Safe",
extension: "pgd",
mime: "application/pgp-keys",
description: "",
signature: {
0: 0x50, // PGPdMAIN
1: 0x47,
2: 0x50,
3: 0x64,
4: 0x4d,
5: 0x41,
6: 0x49,
7: 0x4e,
8: 0x60,
9: 0x01,
10: 0x00
},
extractor: null
},
{
name: "Task Scheduler",
extension: "job",
mime: "application/octet-stream",
description: "",
signature: {
0: [0x00, 0x01, 0x02, 0x03],
1: [0x05, 0x06],
2: 0x01,
3: 0x00,
20: 0x46,
21: 0x00
},
extractor: null
},
{
name: "Windows Shortcut",
extension: "lnk",
mime: "application/x-ms-shortcut",
description: "",
signature: {
0: 0x4c,
1: 0x00,
2: 0x00,
3: 0x00,
4: 0x01,
5: 0x14,
6: 0x02,
7: 0x00,
8: 0x00,
9: 0x00,
10: 0x00,
11: 0x00,
12: 0xc0,
13: 0x00,
14: 0x00,
15: 0x00,
16: 0x00,
17: 0x00,
18: 0x00,
19: 0x46
},
extractor: null
}
]
};
@ -2307,9 +2675,10 @@ export function extractRTF(bytes, offset) {
export function extractPListXML(bytes, offset) {
const stream = new Stream(bytes.slice(offset));
// Find closing tag (</plist>\n)
stream.continueUntil([0x3c, 0x2f, 0x70, 0x6c, 0x69, 0x73, 0x74, 0x3e, 0x0a]);
stream.moveForwardsBy(9);
// Find closing tag (</plist>)
stream.continueUntil([0x3c, 0x2f, 0x70, 0x6c, 0x69, 0x73, 0x74, 0x3e]);
stream.moveForwardsBy(8);
stream.consumeIf(0x0a);
return stream.carve();
}

1
src/core/lib/Magic.mjs
View File

@ -97,6 +97,7 @@ class Magic {
if (!fileType.length) return null;
return {
name: fileType[0].name,
ext: fileType[0].extension,
mime: fileType[0].mime,
desc: fileType[0].description

13
src/core/operations/DetectFileType.mjs
View File

@ -8,6 +8,13 @@ import Operation from "../Operation.mjs";
import {detectFileType} from "../lib/FileType.mjs";
import {FILE_SIGNATURES} from "../lib/FileSignatures.mjs";
// Concat all supported extensions into a single flat list
const exts = [].concat.apply([], Object.keys(FILE_SIGNATURES).map(cat =>
[].concat.apply([], FILE_SIGNATURES[cat].map(sig =>
sig.extension.split(",")
))
)).unique().sort().join(", ");
/**
* Detect File Type operation
*/
@ -22,11 +29,7 @@ class DetectFileType extends Operation {
this.name = "Detect File Type";
this.module = "Default";
this.description = "Attempts to guess the MIME (Multipurpose Internet Mail Extensions) type of the data based on 'magic bytes'.<br><br>Currently supports the following file types: " +
Object.keys(FILE_SIGNATURES).map(cat =>
[].concat.apply([], FILE_SIGNATURES[cat].map(sig =>
sig.extension.split(",")
)).unique().join(", ")
).unique().join(", ") + ".";
exts + ".";
this.infoURL = "https://wikipedia.org/wiki/List_of_file_signatures";
this.inputType = "ArrayBuffer";
this.outputType = "string";

31
src/web/waiters/OutputWaiter.mjs
View File

@ -1046,15 +1046,25 @@ class OutputWaiter {
* @param {Object[]} options
*/
backgroundMagicResult(options) {
if (!options.length ||
!options[0].recipe.length)
return;
if (!options.length) return;
const currentRecipeConfig = this.app.getRecipeConfig();
const newRecipeConfig = currentRecipeConfig.concat(options[0].recipe);
const opSequence = options[0].recipe.map(o => o.op).join(", ");
let msg = "",
newRecipeConfig;
this.showMagicButton(opSequence, options[0].data, newRecipeConfig);
if (options[0].recipe.length) {
const opSequence = options[0].recipe.map(o => o.op).join(", ");
newRecipeConfig = currentRecipeConfig.concat(options[0].recipe);
msg = `<i>${opSequence}</i> will produce <span class="data-text">"${Utils.escapeHtml(Utils.truncate(options[0].data), 30)}"</span>`;
} else if (options[0].fileType && options[0].fileType.name) {
const ft = options[0].fileType;
newRecipeConfig = currentRecipeConfig.concat([{op: "Detect File Type", args: []}]);
msg = `<i>${ft.name}</i> file detected`;
} else {
return;
}
this.showMagicButton(msg, newRecipeConfig);
}
/**
@ -1072,15 +1082,14 @@ class OutputWaiter {
}
/**
* Displays the Magic button with a title and adds a link to a complete recipe.
* Displays the Magic button with a title and adds a link to a recipe.
*
* @param {string} opSequence
* @param {string} result
* @param {string} msg
* @param {Object[]} recipeConfig
*/
showMagicButton(opSequence, result, recipeConfig) {
showMagicButton(msg, recipeConfig) {
const magicButton = document.getElementById("magic");
magicButton.setAttribute("data-original-title", `<i>${opSequence}</i> will produce <span class="data-text">"${Utils.escapeHtml(Utils.truncate(result), 30)}"</span>`);
magicButton.setAttribute("data-original-title", msg);
magicButton.setAttribute("data-recipe", JSON.stringify(recipeConfig), null, "");
magicButton.classList.remove("hidden");
magicButton.classList.add("pulse");