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https://github.com/NuSkooler/enigma-bbs.git
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Finish conversion from 'binary' -> 'binary-parser'
* FTN packets * SAUCE
This commit is contained in:
Bryan Ashby
parent
c1f971d2d9
commit
8bfad971a1
5 changed files with 506 additions and 424 deletions
180
core/sauce.js
180
core/sauce.js
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@ -1,8 +1,11 @@
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/* jslint node: true */
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'use strict';
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var binary = require('binary');
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var iconv = require('iconv-lite');
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const Errors = require('./enig_error.js').Errors;
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// deps
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const iconv = require('iconv-lite');
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const { Parser } = require('binary-parser');
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exports.readSAUCE = readSAUCE;
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@ -25,103 +28,107 @@ const SAUCE_VALID_DATA_TYPES = [0, 1, 2, 3, 4, 5, 6, 7, 8 ];
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function readSAUCE(data, cb) {
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if(data.length < SAUCE_SIZE) {
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cb(new Error('No SAUCE record present'));
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return;
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return cb(Errors.DoesNotExist('No SAUCE record present'));
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}
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var offset = data.length - SAUCE_SIZE;
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var sauceRec = data.slice(offset);
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let sauceRec;
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try {
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sauceRec = new Parser()
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.buffer('id', { length : 5 } )
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.buffer('version', { length : 2 } )
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.buffer('title', { length: 35 } )
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.buffer('author', { length : 20 } )
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.buffer('group', { length: 20 } )
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.buffer('date', { length: 8 } )
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.uint32le('fileSize')
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.int8('dataType')
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.int8('fileType')
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.uint16le('tinfo1')
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.uint16le('tinfo2')
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.uint16le('tinfo3')
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.uint16le('tinfo4')
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.int8('numComments')
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.int8('flags')
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// :TODO: does this need to be optional?
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.buffer('tinfos', { length: 22 } ) // SAUCE 00.5
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.parse(data.slice(data.length - SAUCE_SIZE));
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} catch(e) {
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return cb(Errors.Invalid('Invalid SAUCE record'));
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}
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binary.parse(sauceRec)
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.buffer('id', 5)
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.buffer('version', 2)
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.buffer('title', 35)
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.buffer('author', 20)
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.buffer('group', 20)
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.buffer('date', 8)
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.word32lu('fileSize')
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.word8('dataType')
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.word8('fileType')
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.word16lu('tinfo1')
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.word16lu('tinfo2')
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.word16lu('tinfo3')
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.word16lu('tinfo4')
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.word8('numComments')
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.word8('flags')
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.buffer('tinfos', 22) // SAUCE 00.5
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.tap(function onVars(vars) {
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if(!SAUCE_ID.equals(vars.id)) {
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return cb(new Error('No SAUCE record present'));
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}
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if(!SAUCE_ID.equals(sauceRec.id)) {
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return cb(Errors.DoesNotExist('No SAUCE record present'));
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}
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var ver = iconv.decode(vars.version, 'cp437');
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const ver = iconv.decode(sauceRec.version, 'cp437');
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if('00' !== ver) {
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return cb(new Error('Unsupported SAUCE version: ' + ver));
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}
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if('00' !== ver) {
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return cb(Errors.Invalid(`Unsupported SAUCE version: ${ver}`));
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}
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if(-1 === SAUCE_VALID_DATA_TYPES.indexOf(vars.dataType)) {
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return cb(new Error('Unsupported SAUCE DataType: ' + vars.dataType));
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}
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if(-1 === SAUCE_VALID_DATA_TYPES.indexOf(sauceRec.dataType)) {
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return cb(Errors.Invalid(`Unsupported SAUCE DataType: ${sauceRec.dataType}`));
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}
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var sauce = {
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id : iconv.decode(vars.id, 'cp437'),
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version : iconv.decode(vars.version, 'cp437').trim(),
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title : iconv.decode(vars.title, 'cp437').trim(),
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author : iconv.decode(vars.author, 'cp437').trim(),
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group : iconv.decode(vars.group, 'cp437').trim(),
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date : iconv.decode(vars.date, 'cp437').trim(),
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fileSize : vars.fileSize,
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dataType : vars.dataType,
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fileType : vars.fileType,
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tinfo1 : vars.tinfo1,
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tinfo2 : vars.tinfo2,
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tinfo3 : vars.tinfo3,
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tinfo4 : vars.tinfo4,
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numComments : vars.numComments,
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flags : vars.flags,
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tinfos : vars.tinfos,
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};
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const sauce = {
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id : iconv.decode(sauceRec.id, 'cp437'),
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version : iconv.decode(sauceRec.version, 'cp437').trim(),
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title : iconv.decode(sauceRec.title, 'cp437').trim(),
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author : iconv.decode(sauceRec.author, 'cp437').trim(),
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group : iconv.decode(sauceRec.group, 'cp437').trim(),
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date : iconv.decode(sauceRec.date, 'cp437').trim(),
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fileSize : sauceRec.fileSize,
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dataType : sauceRec.dataType,
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fileType : sauceRec.fileType,
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tinfo1 : sauceRec.tinfo1,
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tinfo2 : sauceRec.tinfo2,
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tinfo3 : sauceRec.tinfo3,
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tinfo4 : sauceRec.tinfo4,
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numComments : sauceRec.numComments,
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flags : sauceRec.flags,
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tinfos : sauceRec.tinfos,
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};
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var dt = SAUCE_DATA_TYPES[sauce.dataType];
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if(dt && dt.parser) {
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sauce[dt.name] = dt.parser(sauce);
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}
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const dt = SAUCE_DATA_TYPES[sauce.dataType];
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if(dt && dt.parser) {
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sauce[dt.name] = dt.parser(sauce);
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}
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cb(null, sauce);
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});
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return cb(null, sauce);
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}
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// :TODO: These need completed:
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var SAUCE_DATA_TYPES = {};
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SAUCE_DATA_TYPES[0] = { name : 'None' };
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SAUCE_DATA_TYPES[1] = { name : 'Character', parser : parseCharacterSAUCE };
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SAUCE_DATA_TYPES[2] = 'Bitmap';
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SAUCE_DATA_TYPES[3] = 'Vector';
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SAUCE_DATA_TYPES[4] = 'Audio';
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SAUCE_DATA_TYPES[5] = 'BinaryText';
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SAUCE_DATA_TYPES[6] = 'XBin';
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SAUCE_DATA_TYPES[7] = 'Archive';
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SAUCE_DATA_TYPES[8] = 'Executable';
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const SAUCE_DATA_TYPES = {
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0 : { name : 'None' },
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1 : { name : 'Character', parser : parseCharacterSAUCE },
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2 : 'Bitmap',
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3 : 'Vector',
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4 : 'Audio',
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5 : 'BinaryText',
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6 : 'XBin',
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7 : 'Archive',
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8 : 'Executable',
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};
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var SAUCE_CHARACTER_FILE_TYPES = {};
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SAUCE_CHARACTER_FILE_TYPES[0] = 'ASCII';
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SAUCE_CHARACTER_FILE_TYPES[1] = 'ANSi';
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SAUCE_CHARACTER_FILE_TYPES[2] = 'ANSiMation';
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SAUCE_CHARACTER_FILE_TYPES[3] = 'RIP script';
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SAUCE_CHARACTER_FILE_TYPES[4] = 'PCBoard';
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SAUCE_CHARACTER_FILE_TYPES[5] = 'Avatar';
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SAUCE_CHARACTER_FILE_TYPES[6] = 'HTML';
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SAUCE_CHARACTER_FILE_TYPES[7] = 'Source';
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SAUCE_CHARACTER_FILE_TYPES[8] = 'TundraDraw';
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const SAUCE_CHARACTER_FILE_TYPES = {
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0 : 'ASCII',
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1 : 'ANSi',
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2 : 'ANSiMation',
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3 : 'RIP script',
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4 : 'PCBoard',
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5 : 'Avatar',
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6 : 'HTML',
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7 : 'Source',
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8 : 'TundraDraw',
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};
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//
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// Map of SAUCE font -> encoding hint
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//
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// Note that this is the same mapping that x84 uses. Be compatible!
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//
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var SAUCE_FONT_TO_ENCODING_HINT = {
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const SAUCE_FONT_TO_ENCODING_HINT = {
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'Amiga MicroKnight' : 'amiga',
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'Amiga MicroKnight+' : 'amiga',
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'Amiga mOsOul' : 'amiga',
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@ -138,9 +145,11 @@ var SAUCE_FONT_TO_ENCODING_HINT = {
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'IBM VGA' : 'cp437',
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};
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['437', '720', '737', '775', '819', '850', '852', '855', '857', '858',
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'860', '861', '862', '863', '864', '865', '866', '869', '872'].forEach(function onPage(page) {
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var codec = 'cp' + page;
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[
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'437', '720', '737', '775', '819', '850', '852', '855', '857', '858',
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'860', '861', '862', '863', '864', '865', '866', '869', '872'
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].forEach( page => {
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const codec = 'cp' + page;
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SAUCE_FONT_TO_ENCODING_HINT['IBM EGA43 ' + page] = codec;
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SAUCE_FONT_TO_ENCODING_HINT['IBM EGA ' + page] = codec;
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SAUCE_FONT_TO_ENCODING_HINT['IBM VGA25g ' + page] = codec;
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@ -149,7 +158,7 @@ var SAUCE_FONT_TO_ENCODING_HINT = {
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});
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function parseCharacterSAUCE(sauce) {
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var result = {};
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const result = {};
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result.fileType = SAUCE_CHARACTER_FILE_TYPES[sauce.fileType] || 'Unknown';
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@ -157,11 +166,12 @@ function parseCharacterSAUCE(sauce) {
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// convience: create ansiFlags
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sauce.ansiFlags = sauce.flags;
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var i = 0;
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let i = 0;
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while(i < sauce.tinfos.length && sauce.tinfos[i] !== 0x00) {
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++i;
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}
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var fontName = iconv.decode(sauce.tinfos.slice(0, i), 'cp437');
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const fontName = iconv.decode(sauce.tinfos.slice(0, i), 'cp437');
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if(fontName.length > 0) {
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result.fontName = fontName;
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}
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