FM / streams

/var/www/greso.tech/server/nsm/node_modules/pdf-lib/es/core/streams/

/var/www/greso.tech/server/nsm/node_modules/pdf-lib/es/core/streams

Name	Size	Mode	Actions
Ascii85Stream.d.ts	339	0644	edit dl rm
Ascii85Stream.d.ts.map	365	0644	edit dl rm
Ascii85Stream.js	2751	0644	edit dl rm
Ascii85Stream.js.map	2456	0644	edit dl rm
AsciiHexStream.d.ts	347	0644	edit dl rm
AsciiHexStream.d.ts.map	367	0644	edit dl rm
AsciiHexStream.js	2526	0644	edit dl rm
AsciiHexStream.js.map	1960	0644	edit dl rm
decode.d.ts	218	0644	edit dl rm
decode.d.ts.map	227	0644	edit dl rm
decode.js	2182	0644	edit dl rm
decode.js.map	2116	0644	edit dl rm
DecodeStream.d.ts	930	0644	edit dl rm
DecodeStream.d.ts.map	769	0644	edit dl rm
DecodeStream.js	4919	0644	edit dl rm
DecodeStream.js.map	4007	0644	edit dl rm
FlateStream.d.ts	433	0644	edit dl rm
FlateStream.d.ts.map	456	0644	edit dl rm
FlateStream.js	16422	0644	edit dl rm
FlateStream.js.map	15482	0644	edit dl rm
LZWStream.d.ts	431	0644	edit dl rm
LZWStream.d.ts.map	469	0644	edit dl rm
LZWStream.js	5336	0644	edit dl rm
LZWStream.js.map	4311	0644	edit dl rm
RunLengthStream.d.ts	326	0644	edit dl rm
RunLengthStream.d.ts.map	344	0644	edit dl rm
RunLengthStream.js	2059	0644	edit dl rm
RunLengthStream.js.map	1443	0644	edit dl rm
Stream.d.ts	1181	0644	edit dl rm
Stream.d.ts.map	1132	0644	edit dl rm
Stream.js	3349	0644	edit dl rm
Stream.js.map	2909	0644	edit dl rm

Edit: /var/www/greso.tech/server/nsm/node_modules/pdf-lib/es/core/streams/FlateStream.js (16422B)

/*
 * Copyright 1996-2003 Glyph & Cog, LLC
 *
 * The flate stream implementation contained in this file is a JavaScript port
 * of XPDF's implementation, made available under the Apache 2.0 open source
 * license.
 */
import { __extends } from "tslib";
/*
 * Copyright 2012 Mozilla Foundation
 *
 * The FlateStream class contained in this file is a TypeScript port of the
 * JavaScript FlateStream class in Mozilla's pdf.js project, made available
 * under the Apache 2.0 open source license.
 */
/* tslint:disable  no-conditional-assignment */
import DecodeStream from "./DecodeStream";
// prettier-ignore
var codeLenCodeMap = new Int32Array([
    16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
]);
// prettier-ignore
var lengthDecode = new Int32Array([
    0x00003, 0x00004, 0x00005, 0x00006, 0x00007, 0x00008, 0x00009, 0x0000a,
    0x1000b, 0x1000d, 0x1000f, 0x10011, 0x20013, 0x20017, 0x2001b, 0x2001f,
    0x30023, 0x3002b, 0x30033, 0x3003b, 0x40043, 0x40053, 0x40063, 0x40073,
    0x50083, 0x500a3, 0x500c3, 0x500e3, 0x00102, 0x00102, 0x00102
]);
// prettier-ignore
var distDecode = new Int32Array([
    0x00001, 0x00002, 0x00003, 0x00004, 0x10005, 0x10007, 0x20009, 0x2000d,
    0x30011, 0x30019, 0x40021, 0x40031, 0x50041, 0x50061, 0x60081, 0x600c1,
    0x70101, 0x70181, 0x80201, 0x80301, 0x90401, 0x90601, 0xa0801, 0xa0c01,
    0xb1001, 0xb1801, 0xc2001, 0xc3001, 0xd4001, 0xd6001
]);
// prettier-ignore
var fixedLitCodeTab = [new Int32Array([
        0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c0,
        0x70108, 0x80060, 0x80020, 0x900a0, 0x80000, 0x80080, 0x80040, 0x900e0,
        0x70104, 0x80058, 0x80018, 0x90090, 0x70114, 0x80078, 0x80038, 0x900d0,
        0x7010c, 0x80068, 0x80028, 0x900b0, 0x80008, 0x80088, 0x80048, 0x900f0,
        0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c8,
        0x7010a, 0x80064, 0x80024, 0x900a8, 0x80004, 0x80084, 0x80044, 0x900e8,
        0x70106, 0x8005c, 0x8001c, 0x90098, 0x70116, 0x8007c, 0x8003c, 0x900d8,
        0x7010e, 0x8006c, 0x8002c, 0x900b8, 0x8000c, 0x8008c, 0x8004c, 0x900f8,
        0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c4,
        0x70109, 0x80062, 0x80022, 0x900a4, 0x80002, 0x80082, 0x80042, 0x900e4,
        0x70105, 0x8005a, 0x8001a, 0x90094, 0x70115, 0x8007a, 0x8003a, 0x900d4,
        0x7010d, 0x8006a, 0x8002a, 0x900b4, 0x8000a, 0x8008a, 0x8004a, 0x900f4,
        0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cc,
        0x7010b, 0x80066, 0x80026, 0x900ac, 0x80006, 0x80086, 0x80046, 0x900ec,
        0x70107, 0x8005e, 0x8001e, 0x9009c, 0x70117, 0x8007e, 0x8003e, 0x900dc,
        0x7010f, 0x8006e, 0x8002e, 0x900bc, 0x8000e, 0x8008e, 0x8004e, 0x900fc,
        0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c2,
        0x70108, 0x80061, 0x80021, 0x900a2, 0x80001, 0x80081, 0x80041, 0x900e2,
        0x70104, 0x80059, 0x80019, 0x90092, 0x70114, 0x80079, 0x80039, 0x900d2,
        0x7010c, 0x80069, 0x80029, 0x900b2, 0x80009, 0x80089, 0x80049, 0x900f2,
        0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900ca,
        0x7010a, 0x80065, 0x80025, 0x900aa, 0x80005, 0x80085, 0x80045, 0x900ea,
        0x70106, 0x8005d, 0x8001d, 0x9009a, 0x70116, 0x8007d, 0x8003d, 0x900da,
        0x7010e, 0x8006d, 0x8002d, 0x900ba, 0x8000d, 0x8008d, 0x8004d, 0x900fa,
        0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c6,
        0x70109, 0x80063, 0x80023, 0x900a6, 0x80003, 0x80083, 0x80043, 0x900e6,
        0x70105, 0x8005b, 0x8001b, 0x90096, 0x70115, 0x8007b, 0x8003b, 0x900d6,
        0x7010d, 0x8006b, 0x8002b, 0x900b6, 0x8000b, 0x8008b, 0x8004b, 0x900f6,
        0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900ce,
        0x7010b, 0x80067, 0x80027, 0x900ae, 0x80007, 0x80087, 0x80047, 0x900ee,
        0x70107, 0x8005f, 0x8001f, 0x9009e, 0x70117, 0x8007f, 0x8003f, 0x900de,
        0x7010f, 0x8006f, 0x8002f, 0x900be, 0x8000f, 0x8008f, 0x8004f, 0x900fe,
        0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c1,
        0x70108, 0x80060, 0x80020, 0x900a1, 0x80000, 0x80080, 0x80040, 0x900e1,
        0x70104, 0x80058, 0x80018, 0x90091, 0x70114, 0x80078, 0x80038, 0x900d1,
        0x7010c, 0x80068, 0x80028, 0x900b1, 0x80008, 0x80088, 0x80048, 0x900f1,
        0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c9,
        0x7010a, 0x80064, 0x80024, 0x900a9, 0x80004, 0x80084, 0x80044, 0x900e9,
        0x70106, 0x8005c, 0x8001c, 0x90099, 0x70116, 0x8007c, 0x8003c, 0x900d9,
        0x7010e, 0x8006c, 0x8002c, 0x900b9, 0x8000c, 0x8008c, 0x8004c, 0x900f9,
        0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c5,
        0x70109, 0x80062, 0x80022, 0x900a5, 0x80002, 0x80082, 0x80042, 0x900e5,
        0x70105, 0x8005a, 0x8001a, 0x90095, 0x70115, 0x8007a, 0x8003a, 0x900d5,
        0x7010d, 0x8006a, 0x8002a, 0x900b5, 0x8000a, 0x8008a, 0x8004a, 0x900f5,
        0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cd,
        0x7010b, 0x80066, 0x80026, 0x900ad, 0x80006, 0x80086, 0x80046, 0x900ed,
        0x70107, 0x8005e, 0x8001e, 0x9009d, 0x70117, 0x8007e, 0x8003e, 0x900dd,
        0x7010f, 0x8006e, 0x8002e, 0x900bd, 0x8000e, 0x8008e, 0x8004e, 0x900fd,
        0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c3,
        0x70108, 0x80061, 0x80021, 0x900a3, 0x80001, 0x80081, 0x80041, 0x900e3,
        0x70104, 0x80059, 0x80019, 0x90093, 0x70114, 0x80079, 0x80039, 0x900d3,
        0x7010c, 0x80069, 0x80029, 0x900b3, 0x80009, 0x80089, 0x80049, 0x900f3,
        0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900cb,
        0x7010a, 0x80065, 0x80025, 0x900ab, 0x80005, 0x80085, 0x80045, 0x900eb,
        0x70106, 0x8005d, 0x8001d, 0x9009b, 0x70116, 0x8007d, 0x8003d, 0x900db,
        0x7010e, 0x8006d, 0x8002d, 0x900bb, 0x8000d, 0x8008d, 0x8004d, 0x900fb,
        0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c7,
        0x70109, 0x80063, 0x80023, 0x900a7, 0x80003, 0x80083, 0x80043, 0x900e7,
        0x70105, 0x8005b, 0x8001b, 0x90097, 0x70115, 0x8007b, 0x8003b, 0x900d7,
        0x7010d, 0x8006b, 0x8002b, 0x900b7, 0x8000b, 0x8008b, 0x8004b, 0x900f7,
        0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900cf,
        0x7010b, 0x80067, 0x80027, 0x900af, 0x80007, 0x80087, 0x80047, 0x900ef,
        0x70107, 0x8005f, 0x8001f, 0x9009f, 0x70117, 0x8007f, 0x8003f, 0x900df,
        0x7010f, 0x8006f, 0x8002f, 0x900bf, 0x8000f, 0x8008f, 0x8004f, 0x900ff
    ]), 9];
// prettier-ignore
var fixedDistCodeTab = [new Int32Array([
        0x50000, 0x50010, 0x50008, 0x50018, 0x50004, 0x50014, 0x5000c, 0x5001c,
        0x50002, 0x50012, 0x5000a, 0x5001a, 0x50006, 0x50016, 0x5000e, 0x00000,
        0x50001, 0x50011, 0x50009, 0x50019, 0x50005, 0x50015, 0x5000d, 0x5001d,
        0x50003, 0x50013, 0x5000b, 0x5001b, 0x50007, 0x50017, 0x5000f, 0x00000
    ]), 5];
var FlateStream = /** @class */ (function (_super) {
    __extends(FlateStream, _super);
    function FlateStream(stream, maybeLength) {
        var _this = _super.call(this, maybeLength) || this;
        _this.stream = stream;
        var cmf = stream.getByte();
        var flg = stream.getByte();
        if (cmf === -1 || flg === -1) {
            throw new Error("Invalid header in flate stream: " + cmf + ", " + flg);
        }
        if ((cmf & 0x0f) !== 0x08) {
            throw new Error("Unknown compression method in flate stream: " + cmf + ", " + flg);
        }
        if (((cmf << 8) + flg) % 31 !== 0) {
            throw new Error("Bad FCHECK in flate stream: " + cmf + ", " + flg);
        }
        if (flg & 0x20) {
            throw new Error("FDICT bit set in flate stream: " + cmf + ", " + flg);
        }
        _this.codeSize = 0;
        _this.codeBuf = 0;
        return _this;
    }
    FlateStream.prototype.readBlock = function () {
        var buffer;
        var len;
        var str = this.stream;
        // read block header
        var hdr = this.getBits(3);
        if (hdr & 1) {
            this.eof = true;
        }
        hdr >>= 1;
        if (hdr === 0) {
            // uncompressed block
            var b = void 0;
            if ((b = str.getByte()) === -1) {
                throw new Error('Bad block header in flate stream');
            }
            var blockLen = b;
            if ((b = str.getByte()) === -1) {
                throw new Error('Bad block header in flate stream');
            }
            blockLen |= b << 8;
            if ((b = str.getByte()) === -1) {
                throw new Error('Bad block header in flate stream');
            }
            var check = b;
            if ((b = str.getByte()) === -1) {
                throw new Error('Bad block header in flate stream');
            }
            check |= b << 8;
            if (check !== (~blockLen & 0xffff) && (blockLen !== 0 || check !== 0)) {
                // Ignoring error for bad "empty" block (see issue 1277)
                throw new Error('Bad uncompressed block length in flate stream');
            }
            this.codeBuf = 0;
            this.codeSize = 0;
            var bufferLength = this.bufferLength;
            buffer = this.ensureBuffer(bufferLength + blockLen);
            var end = bufferLength + blockLen;
            this.bufferLength = end;
            if (blockLen === 0) {
                if (str.peekByte() === -1) {
                    this.eof = true;
                }
            }
            else {
                for (var n = bufferLength; n < end; ++n) {
                    if ((b = str.getByte()) === -1) {
                        this.eof = true;
                        break;
                    }
                    buffer[n] = b;
                }
            }
            return;
        }
        var litCodeTable;
        var distCodeTable;
        if (hdr === 1) {
            // compressed block, fixed codes
            litCodeTable = fixedLitCodeTab;
            distCodeTable = fixedDistCodeTab;
        }
        else if (hdr === 2) {
            // compressed block, dynamic codes
            var numLitCodes = this.getBits(5) + 257;
            var numDistCodes = this.getBits(5) + 1;
            var numCodeLenCodes = this.getBits(4) + 4;
            // build the code lengths code table
            var codeLenCodeLengths = new Uint8Array(codeLenCodeMap.length);
            var i = void 0;
            for (i = 0; i < numCodeLenCodes; ++i) {
                codeLenCodeLengths[codeLenCodeMap[i]] = this.getBits(3);
            }
            var codeLenCodeTab = this.generateHuffmanTable(codeLenCodeLengths);
            // build the literal and distance code tables
            len = 0;
            i = 0;
            var codes = numLitCodes + numDistCodes;
            var codeLengths = new Uint8Array(codes);
            var bitsLength = void 0;
            var bitsOffset = void 0;
            var what = void 0;
            while (i < codes) {
                var code = this.getCode(codeLenCodeTab);
                if (code === 16) {
                    bitsLength = 2;
                    bitsOffset = 3;
                    what = len;
                }
                else if (code === 17) {
                    bitsLength = 3;
                    bitsOffset = 3;
                    what = len = 0;
                }
                else if (code === 18) {
                    bitsLength = 7;
                    bitsOffset = 11;
                    what = len = 0;
                }
                else {
                    codeLengths[i++] = len = code;
                    continue;
                }
                var repeatLength = this.getBits(bitsLength) + bitsOffset;
                while (repeatLength-- > 0) {
                    codeLengths[i++] = what;
                }
            }
            litCodeTable = this.generateHuffmanTable(codeLengths.subarray(0, numLitCodes));
            distCodeTable = this.generateHuffmanTable(codeLengths.subarray(numLitCodes, codes));
        }
        else {
            throw new Error('Unknown block type in flate stream');
        }
        buffer = this.buffer;
        var limit = buffer ? buffer.length : 0;
        var pos = this.bufferLength;
        while (true) {
            var code1 = this.getCode(litCodeTable);
            if (code1 < 256) {
                if (pos + 1 >= limit) {
                    buffer = this.ensureBuffer(pos + 1);
                    limit = buffer.length;
                }
                buffer[pos++] = code1;
                continue;
            }
            if (code1 === 256) {
                this.bufferLength = pos;
                return;
            }
            code1 -= 257;
            code1 = lengthDecode[code1];
            var code2 = code1 >> 16;
            if (code2 > 0) {
                code2 = this.getBits(code2);
            }
            len = (code1 & 0xffff) + code2;
            code1 = this.getCode(distCodeTable);
            code1 = distDecode[code1];
            code2 = code1 >> 16;
            if (code2 > 0) {
                code2 = this.getBits(code2);
            }
            var dist = (code1 & 0xffff) + code2;
            if (pos + len >= limit) {
                buffer = this.ensureBuffer(pos + len);
                limit = buffer.length;
            }
            for (var k = 0; k < len; ++k, ++pos) {
                buffer[pos] = buffer[pos - dist];
            }
        }
    };
    FlateStream.prototype.getBits = function (bits) {
        var str = this.stream;
        var codeSize = this.codeSize;
        var codeBuf = this.codeBuf;
        var b;
        while (codeSize < bits) {
            if ((b = str.getByte()) === -1) {
                throw new Error('Bad encoding in flate stream');
            }
            codeBuf |= b << codeSize;
            codeSize += 8;
        }
        b = codeBuf & ((1 << bits) - 1);
        this.codeBuf = codeBuf >> bits;
        this.codeSize = codeSize -= bits;
        return b;
    };
    FlateStream.prototype.getCode = function (table) {
        var str = this.stream;
        var codes = table[0];
        var maxLen = table[1];
        var codeSize = this.codeSize;
        var codeBuf = this.codeBuf;
        var b;
        while (codeSize < maxLen) {
            if ((b = str.getByte()) === -1) {
                // premature end of stream. code might however still be valid.
                // codeSize < codeLen check below guards against incomplete codeVal.
                break;
            }
            codeBuf |= b << codeSize;
            codeSize += 8;
        }
        var code = codes[codeBuf & ((1 << maxLen) - 1)];
        if (typeof codes === 'number') {
            console.log('FLATE:', code);
        }
        var codeLen = code >> 16;
        var codeVal = code & 0xffff;
        if (codeLen < 1 || codeSize < codeLen) {
            throw new Error('Bad encoding in flate stream');
        }
        this.codeBuf = codeBuf >> codeLen;
        this.codeSize = codeSize - codeLen;
        return codeVal;
    };
    FlateStream.prototype.generateHuffmanTable = function (lengths) {
        var n = lengths.length;
        // find max code length
        var maxLen = 0;
        var i;
        for (i = 0; i < n; ++i) {
            if (lengths[i] > maxLen) {
                maxLen = lengths[i];
            }
        }
        // build the table
        var size = 1 << maxLen;
        var codes = new Int32Array(size);
        for (var len = 1, code = 0, skip = 2; len <= maxLen; ++len, code <<= 1, skip <<= 1) {
            for (var val = 0; val < n; ++val) {
                if (lengths[val] === len) {
                    // bit-reverse the code
                    var code2 = 0;
                    var t = code;
                    for (i = 0; i < len; ++i) {
                        code2 = (code2 << 1) | (t & 1);
                        t >>= 1;
                    }
                    // fill the table entries
                    for (i = code2; i < size; i += skip) {
                        codes[i] = (len << 16) | val;
                    }
                    ++code;
                }
            }
        }
        return [codes, maxLen];
    };
    return FlateStream;
}(DecodeStream));
export default FlateStream;
//# sourceMappingURL=FlateStream.js.map

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