mirror of
https://github.com/gchq/CyberChef
synced 2024-11-15 00:57:08 +00:00
ID3 Extractor Added.
This commit is contained in:
n1073645
parent
0212bfb46e
commit
09d9deae43
1 changed files with 301 additions and 0 deletions
301
src/core/operations/ExtractID3.mjs
Normal file
301
src/core/operations/ExtractID3.mjs
Normal file
|
|
@ -0,0 +1,301 @@
|
|||
/**
|
||||
* @author n1073645 [n1073645@gmail.com]
|
||||
* @copyright Crown Copyright 2020
|
||||
* @license Apache-2.0
|
||||
*/
|
||||
|
||||
import Operation from "../Operation.mjs";
|
||||
import OperationError from "../errors/OperationError.mjs";
|
||||
|
||||
/**
|
||||
* Extract ID3 operation
|
||||
*/
|
||||
class ExtractID3 extends Operation {
|
||||
|
||||
/**
|
||||
* ExtractID3 constructor
|
||||
*/
|
||||
constructor() {
|
||||
super();
|
||||
|
||||
this.name = "Extract ID3";
|
||||
this.module = "Default";
|
||||
this.description = "";
|
||||
this.infoURL = "";
|
||||
this.inputType = "ArrayBuffer";
|
||||
this.outputType = "string";
|
||||
this.args = [];
|
||||
}
|
||||
|
||||
/**
|
||||
* @param {ArrayBuffer} input
|
||||
* @param {Object[]} args
|
||||
* @returns {string}
|
||||
*/
|
||||
run(input, args) {
|
||||
|
||||
// Borrowed from https://github.com/aadsm/jsmediatags
|
||||
const FRAME_DESCRIPTIONS = {
|
||||
// v2.2
|
||||
"BUF": "Recommended buffer size",
|
||||
"CNT": "Play counter",
|
||||
"COM": "Comments",
|
||||
"CRA": "Audio encryption",
|
||||
"CRM": "Encrypted meta frame",
|
||||
"ETC": "Event timing codes",
|
||||
"EQU": "Equalization",
|
||||
"GEO": "General encapsulated object",
|
||||
"IPL": "Involved people list",
|
||||
"LNK": "Linked information",
|
||||
"MCI": "Music CD Identifier",
|
||||
"MLL": "MPEG location lookup table",
|
||||
"PIC": "Attached picture",
|
||||
"POP": "Popularimeter",
|
||||
"REV": "Reverb",
|
||||
"RVA": "Relative volume adjustment",
|
||||
"SLT": "Synchronized lyric/text",
|
||||
"STC": "Synced tempo codes",
|
||||
"TAL": "Album/Movie/Show title",
|
||||
"TBP": "BPM (Beats Per Minute)",
|
||||
"TCM": "Composer",
|
||||
"TCO": "Content type",
|
||||
"TCR": "Copyright message",
|
||||
"TDA": "Date",
|
||||
"TDY": "Playlist delay",
|
||||
"TEN": "Encoded by",
|
||||
"TFT": "File type",
|
||||
"TIM": "Time",
|
||||
"TKE": "Initial key",
|
||||
"TLA": "Language(s)",
|
||||
"TLE": "Length",
|
||||
"TMT": "Media type",
|
||||
"TOA": "Original artist(s)/performer(s)",
|
||||
"TOF": "Original filename",
|
||||
"TOL": "Original Lyricist(s)/text writer(s)",
|
||||
"TOR": "Original release year",
|
||||
"TOT": "Original album/Movie/Show title",
|
||||
"TP1": "Lead artist(s)/Lead performer(s)/Soloist(s)/Performing group",
|
||||
"TP2": "Band/Orchestra/Accompaniment",
|
||||
"TP3": "Conductor/Performer refinement",
|
||||
"TP4": "Interpreted, remixed, or otherwise modified by",
|
||||
"TPA": "Part of a set",
|
||||
"TPB": "Publisher",
|
||||
"TRC": "ISRC (International Standard Recording Code)",
|
||||
"TRD": "Recording dates",
|
||||
"TRK": "Track number/Position in set",
|
||||
"TSI": "Size",
|
||||
"TSS": "Software/hardware and settings used for encoding",
|
||||
"TT1": "Content group description",
|
||||
"TT2": "Title/Songname/Content description",
|
||||
"TT3": "Subtitle/Description refinement",
|
||||
"TXT": "Lyricist/text writer",
|
||||
"TXX": "User defined text information frame",
|
||||
"TYE": "Year",
|
||||
"UFI": "Unique file identifier",
|
||||
"ULT": "Unsychronized lyric/text transcription",
|
||||
"WAF": "Official audio file webpage",
|
||||
"WAR": "Official artist/performer webpage",
|
||||
"WAS": "Official audio source webpage",
|
||||
"WCM": "Commercial information",
|
||||
"WCP": "Copyright/Legal information",
|
||||
"WPB": "Publishers official webpage",
|
||||
"WXX": "User defined URL link frame",
|
||||
// v2.3
|
||||
"AENC": "Audio encryption",
|
||||
"APIC": "Attached picture",
|
||||
"ASPI": "Audio seek point index",
|
||||
"CHAP": "Chapter",
|
||||
"CTOC": "Table of contents",
|
||||
"COMM": "Comments",
|
||||
"COMR": "Commercial frame",
|
||||
"ENCR": "Encryption method registration",
|
||||
"EQU2": "Equalisation (2)",
|
||||
"EQUA": "Equalization",
|
||||
"ETCO": "Event timing codes",
|
||||
"GEOB": "General encapsulated object",
|
||||
"GRID": "Group identification registration",
|
||||
"IPLS": "Involved people list",
|
||||
"LINK": "Linked information",
|
||||
"MCDI": "Music CD identifier",
|
||||
"MLLT": "MPEG location lookup table",
|
||||
"OWNE": "Ownership frame",
|
||||
"PRIV": "Private frame",
|
||||
"PCNT": "Play counter",
|
||||
"POPM": "Popularimeter",
|
||||
"POSS": "Position synchronisation frame",
|
||||
"RBUF": "Recommended buffer size",
|
||||
"RVA2": "Relative volume adjustment (2)",
|
||||
"RVAD": "Relative volume adjustment",
|
||||
"RVRB": "Reverb",
|
||||
"SEEK": "Seek frame",
|
||||
"SYLT": "Synchronized lyric/text",
|
||||
"SYTC": "Synchronized tempo codes",
|
||||
"TALB": "Album/Movie/Show title",
|
||||
"TBPM": "BPM (beats per minute)",
|
||||
"TCOM": "Composer",
|
||||
"TCON": "Content type",
|
||||
"TCOP": "Copyright message",
|
||||
"TDAT": "Date",
|
||||
"TDLY": "Playlist delay",
|
||||
"TDRC": "Recording time",
|
||||
"TDRL": "Release time",
|
||||
"TDTG": "Tagging time",
|
||||
"TENC": "Encoded by",
|
||||
"TEXT": "Lyricist/Text writer",
|
||||
"TFLT": "File type",
|
||||
"TIME": "Time",
|
||||
"TIPL": "Involved people list",
|
||||
"TIT1": "Content group description",
|
||||
"TIT2": "Title/songname/content description",
|
||||
"TIT3": "Subtitle/Description refinement",
|
||||
"TKEY": "Initial key",
|
||||
"TLAN": "Language(s)",
|
||||
"TLEN": "Length",
|
||||
"TMCL": "Musician credits list",
|
||||
"TMED": "Media type",
|
||||
"TMOO": "Mood",
|
||||
"TOAL": "Original album/movie/show title",
|
||||
"TOFN": "Original filename",
|
||||
"TOLY": "Original lyricist(s)/text writer(s)",
|
||||
"TOPE": "Original artist(s)/performer(s)",
|
||||
"TORY": "Original release year",
|
||||
"TOWN": "File owner/licensee",
|
||||
"TPE1": "Lead performer(s)/Soloist(s)",
|
||||
"TPE2": "Band/orchestra/accompaniment",
|
||||
"TPE3": "Conductor/performer refinement",
|
||||
"TPE4": "Interpreted, remixed, or otherwise modified by",
|
||||
"TPOS": "Part of a set",
|
||||
"TPRO": "Produced notice",
|
||||
"TPUB": "Publisher",
|
||||
"TRCK": "Track number/Position in set",
|
||||
"TRDA": "Recording dates",
|
||||
"TRSN": "Internet radio station name",
|
||||
"TRSO": "Internet radio station owner",
|
||||
"TSOA": "Album sort order",
|
||||
"TSOP": "Performer sort order",
|
||||
"TSOT": "Title sort order",
|
||||
"TSIZ": "Size",
|
||||
"TSRC": "ISRC (international standard recording code)",
|
||||
"TSSE": "Software/Hardware and settings used for encoding",
|
||||
"TSST": "Set subtitle",
|
||||
"TYER": "Year",
|
||||
"TXXX": "User defined text information frame",
|
||||
"UFID": "Unique file identifier",
|
||||
"USER": "Terms of use",
|
||||
"USLT": "Unsychronized lyric/text transcription",
|
||||
"WCOM": "Commercial information",
|
||||
"WCOP": "Copyright/Legal information",
|
||||
"WOAF": "Official audio file webpage",
|
||||
"WOAR": "Official artist/performer webpage",
|
||||
"WOAS": "Official audio source webpage",
|
||||
"WORS": "Official internet radio station homepage",
|
||||
"WPAY": "Payment",
|
||||
"WPUB": "Publishers official webpage",
|
||||
"WXXX": "User defined URL link frame"
|
||||
};
|
||||
|
||||
input = new Uint8Array(input);
|
||||
let result = "";
|
||||
|
||||
/**
|
||||
* Extracts the ID3 header fields.
|
||||
*/
|
||||
function extractHeader() {
|
||||
if (input.slice(0, 3).toString() !== [0x49, 0x44, 0x33].toString())
|
||||
throw new OperationError("No valid ID3 header.");
|
||||
result = "{\n";
|
||||
result += " Type: \"ID3\",\n";
|
||||
|
||||
// Tag version.
|
||||
result += " Version: \"" + input[3].toString() + "." + input[4].toString() + "\",\n";
|
||||
|
||||
// Header flags.
|
||||
result += " Flags: " + input[5].toString() + ",\n";
|
||||
input = input.slice(6);
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts the size fields to a single integer.
|
||||
*
|
||||
* @param {number} num
|
||||
* @returns {string}
|
||||
*/
|
||||
function readSize(num) {
|
||||
let result = 0;
|
||||
|
||||
// The sizes are 7 bit numbers stored in 8 bit locations.
|
||||
for (let i = (num) * 7; i; i -= 7) {
|
||||
result = (result << i) | input[0];
|
||||
input = input.slice(1);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Reads frame header based on ID.
|
||||
*
|
||||
* @param {string} id
|
||||
* @returns {number}
|
||||
*/
|
||||
function readFrame(id) {
|
||||
result += " " + id + ": {\n";
|
||||
result += " ID: \"" + id + "\",\n";
|
||||
|
||||
// Size of frame.
|
||||
const size = readSize(4);
|
||||
result += " Size: " + size.toString() + ",\n";
|
||||
result += " Description: \"" + FRAME_DESCRIPTIONS[id] + "\",\n";
|
||||
input = input.slice(2);
|
||||
let data = "";
|
||||
|
||||
// Read data from frame.
|
||||
for (let i = 1; i < size; i++)
|
||||
data += String.fromCharCode(input[i]);
|
||||
|
||||
// Move to next Frame
|
||||
input = input.slice(size);
|
||||
result += " Data: \"" + data + "\",\n";
|
||||
result += " },\n";
|
||||
return size;
|
||||
}
|
||||
|
||||
extractHeader();
|
||||
|
||||
const headerTagSize = readSize(4);
|
||||
result += " Tags: {\n";
|
||||
|
||||
let pos = 10;
|
||||
|
||||
// While the current element is in the header.
|
||||
while (pos < headerTagSize) {
|
||||
|
||||
// Frame Identifier of frame.
|
||||
let id = String.fromCharCode(input[0]) + String.fromCharCode(input[1]) + String.fromCharCode(input[2]);
|
||||
input = input.slice(3);
|
||||
|
||||
// If the next character is non-zero it is an identifier.
|
||||
if (input[0] !== 0) {
|
||||
id += String.fromCharCode(input[0]);
|
||||
}
|
||||
input = input.slice(1);
|
||||
if (id in FRAME_DESCRIPTIONS) {
|
||||
pos += 10 + readFrame(id);
|
||||
// If end of header.
|
||||
} else if (id === "\x00\x00\x00") {
|
||||
break;
|
||||
} else {
|
||||
throw new OperationError("Unknown Frame Identifier: " + id);
|
||||
}
|
||||
}
|
||||
|
||||
// Tidy up the output.
|
||||
result += " },\n";
|
||||
result += " Size: "+headerTagSize.toString() + ",\n";
|
||||
result += "}";
|
||||
return result;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
export default ExtractID3;
|
||||
Loading…
Reference in a new issue