/** * @licstart The following is the entire license notice for the * JavaScript code in this page * * Copyright 2022 Mozilla Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * @licend The above is the entire license notice for the * JavaScript code in this page */ "use strict"; var _cff_parser = require("../../core/cff_parser.js"); var _fonts_utils = require("../../core/fonts_utils.js"); var _stream = require("../../core/stream.js"); describe("CFFParser", function () { function createWithNullProto(obj) { const result = Object.create(null); for (const i in obj) { result[i] = obj[i]; } return result; } const privateDictStub = { getByName(name) { return 0; } }; let fontData, parser, cff; beforeAll(function () { const exampleFont = "0100040100010101134142434445462b" + "54696d65732d526f6d616e000101011f" + "f81b00f81c02f81d03f819041c6f000d" + "fb3cfb6efa7cfa1605e911b8f1120003" + "01010813183030312e30303754696d65" + "7320526f6d616e54696d657300000002" + "010102030e0e7d99f92a99fb7695f773" + "8b06f79a93fc7c8c077d99f85695f75e" + "9908fb6e8cf87393f7108b09a70adf0b" + "f78e14"; const fontArr = []; for (let i = 0, ii = exampleFont.length; i < ii; i += 2) { const hex = exampleFont.substring(i, i + 2); fontArr.push(parseInt(hex, 16)); } fontData = new _stream.Stream(fontArr); }); afterAll(function () { fontData = null; }); beforeEach(function () { parser = new _cff_parser.CFFParser(fontData, {}, _fonts_utils.SEAC_ANALYSIS_ENABLED); cff = parser.parse(); }); afterEach(function () { parser = cff = null; }); it("parses header", function () { const header = cff.header; expect(header.major).toEqual(1); expect(header.minor).toEqual(0); expect(header.hdrSize).toEqual(4); expect(header.offSize).toEqual(1); }); it("parses name index", function () { const names = cff.names; expect(names.length).toEqual(1); expect(names[0]).toEqual("ABCDEF+Times-Roman"); }); it("parses string index", function () { const strings = cff.strings; expect(strings.count).toEqual(3); expect(strings.get(0)).toEqual(".notdef"); expect(strings.get(391)).toEqual("001.007"); }); it("parses top dict", function () { const topDict = cff.topDict; expect(topDict.getByName("version")).toEqual(391); expect(topDict.getByName("FullName")).toEqual(392); expect(topDict.getByName("FamilyName")).toEqual(393); expect(topDict.getByName("Weight")).toEqual(389); expect(topDict.getByName("UniqueID")).toEqual(28416); expect(topDict.getByName("FontBBox")).toEqual([-168, -218, 1000, 898]); expect(topDict.getByName("CharStrings")).toEqual(94); expect(topDict.getByName("Private")).toEqual([45, 102]); }); it("refuses to add topDict key with invalid value (bug 1068432)", function () { const topDict = cff.topDict; const defaultValue = topDict.getByName("UnderlinePosition"); topDict.setByKey(3075, [NaN]); expect(topDict.getByName("UnderlinePosition")).toEqual(defaultValue); }); it("ignores reserved commands in parseDict, and refuses to add privateDict " + "keys with invalid values (bug 1308536)", function () { const bytes = new Uint8Array([64, 39, 31, 30, 252, 114, 137, 115, 79, 30, 197, 119, 2, 99, 127, 6]); parser.bytes = bytes; const topDict = cff.topDict; topDict.setByName("Private", [bytes.length, 0]); const parsePrivateDict = function () { parser.parsePrivateDict(topDict); }; expect(parsePrivateDict).not.toThrow(); const privateDict = topDict.privateDict; expect(privateDict.getByName("BlueValues")).toBeNull(); }); it("parses a CharString having cntrmask", function () { const bytes = new Uint8Array([0, 1, 1, 0, 38, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 1, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 3, 20, 22, 22, 14]); parser.bytes = bytes; const charStringsIndex = parser.parseIndex(0).obj; const charStrings = parser.parseCharStrings({ charStrings: charStringsIndex, privateDict: privateDictStub }).charStrings; expect(charStrings.count).toEqual(1); expect(charStrings.get(0).length).toEqual(38); }); it("parses a CharString endchar with 4 args w/seac enabled", function () { const cffParser = new _cff_parser.CFFParser(fontData, {}, true); cffParser.parse(); const bytes = new Uint8Array([0, 1, 1, 0, 237, 247, 22, 247, 72, 204, 247, 86, 14]); cffParser.bytes = bytes; const charStringsIndex = cffParser.parseIndex(0).obj; const result = cffParser.parseCharStrings({ charStrings: charStringsIndex, privateDict: privateDictStub }); expect(result.charStrings.count).toEqual(1); expect(result.charStrings.get(0).length).toEqual(1); expect(result.seacs.length).toEqual(1); expect(result.seacs[0].length).toEqual(4); expect(result.seacs[0][0]).toEqual(130); expect(result.seacs[0][1]).toEqual(180); expect(result.seacs[0][2]).toEqual(65); expect(result.seacs[0][3]).toEqual(194); }); it("parses a CharString endchar with 4 args w/seac disabled", function () { const cffParser = new _cff_parser.CFFParser(fontData, {}, false); cffParser.parse(); const bytes = new Uint8Array([0, 1, 1, 0, 237, 247, 22, 247, 72, 204, 247, 86, 14]); cffParser.bytes = bytes; const charStringsIndex = cffParser.parseIndex(0).obj; const result = cffParser.parseCharStrings({ charStrings: charStringsIndex, privateDict: privateDictStub }); expect(result.charStrings.count).toEqual(1); expect(result.charStrings.get(0).length).toEqual(9); expect(result.seacs.length).toEqual(0); }); it("parses a CharString endchar no args", function () { const bytes = new Uint8Array([0, 1, 1, 0, 14]); parser.bytes = bytes; const charStringsIndex = parser.parseIndex(0).obj; const result = parser.parseCharStrings({ charStrings: charStringsIndex, privateDict: privateDictStub }); expect(result.charStrings.count).toEqual(1); expect(result.charStrings.get(0)[0]).toEqual(14); expect(result.seacs.length).toEqual(0); }); it("parses predefined charsets", function () { const charset = parser.parseCharsets(0, 0, null, true); expect(charset.predefined).toEqual(true); }); it("parses charset format 0", function () { const bytes = new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x02]); parser.bytes = bytes; let charset = parser.parseCharsets(3, 2, new _cff_parser.CFFStrings(), false); expect(charset.charset[1]).toEqual("exclam"); charset = parser.parseCharsets(3, 2, new _cff_parser.CFFStrings(), true); expect(charset.charset[1]).toEqual(2); }); it("parses charset format 1", function () { const bytes = new Uint8Array([0x00, 0x00, 0x00, 0x01, 0x00, 0x08, 0x01]); parser.bytes = bytes; let charset = parser.parseCharsets(3, 2, new _cff_parser.CFFStrings(), false); expect(charset.charset).toEqual([".notdef", "quoteright", "parenleft"]); charset = parser.parseCharsets(3, 2, new _cff_parser.CFFStrings(), true); expect(charset.charset).toEqual([0, 8, 9]); }); it("parses charset format 2", function () { const bytes = new Uint8Array([0x00, 0x00, 0x00, 0x02, 0x00, 0x08, 0x00, 0x01]); parser.bytes = bytes; let charset = parser.parseCharsets(3, 2, new _cff_parser.CFFStrings(), false); expect(charset.charset).toEqual([".notdef", "quoteright", "parenleft"]); charset = parser.parseCharsets(3, 2, new _cff_parser.CFFStrings(), true); expect(charset.charset).toEqual([0, 8, 9]); }); it("parses encoding format 0", function () { const bytes = new Uint8Array([0x00, 0x00, 0x00, 0x01, 0x08]); parser.bytes = bytes; const encoding = parser.parseEncoding(2, {}, new _cff_parser.CFFStrings(), null); expect(encoding.encoding).toEqual(createWithNullProto({ 0x8: 1 })); }); it("parses encoding format 1", function () { const bytes = new Uint8Array([0x00, 0x00, 0x01, 0x01, 0x07, 0x01]); parser.bytes = bytes; const encoding = parser.parseEncoding(2, {}, new _cff_parser.CFFStrings(), null); expect(encoding.encoding).toEqual(createWithNullProto({ 0x7: 0x01, 0x08: 0x02 })); }); it("parses fdselect format 0", function () { const bytes = new Uint8Array([0x00, 0x00, 0x01]); parser.bytes = bytes.slice(); const fdSelect = parser.parseFDSelect(0, 2); expect(fdSelect.fdSelect).toEqual([0, 1]); expect(fdSelect.format).toEqual(0); }); it("parses fdselect format 3", function () { const bytes = new Uint8Array([0x03, 0x00, 0x02, 0x00, 0x00, 0x09, 0x00, 0x02, 0x0a, 0x00, 0x04]); parser.bytes = bytes.slice(); const fdSelect = parser.parseFDSelect(0, 4); expect(fdSelect.fdSelect).toEqual([9, 9, 0xa, 0xa]); expect(fdSelect.format).toEqual(3); }); it("parses invalid fdselect format 3 (bug 1146106)", function () { const bytes = new Uint8Array([0x03, 0x00, 0x02, 0x00, 0x01, 0x09, 0x00, 0x02, 0x0a, 0x00, 0x04]); parser.bytes = bytes.slice(); const fdSelect = parser.parseFDSelect(0, 4); expect(fdSelect.fdSelect).toEqual([9, 9, 0xa, 0xa]); expect(fdSelect.format).toEqual(3); }); }); describe("CFFCompiler", function () { function testParser(bytes) { bytes = new Uint8Array(bytes); return new _cff_parser.CFFParser({ getBytes: () => { return bytes; } }, {}, _fonts_utils.SEAC_ANALYSIS_ENABLED); } it("encodes integers", function () { const c = new _cff_parser.CFFCompiler(); expect(c.encodeInteger(0)).toEqual([0x8b]); expect(c.encodeInteger(100)).toEqual([0xef]); expect(c.encodeInteger(-100)).toEqual([0x27]); expect(c.encodeInteger(1000)).toEqual([0xfa, 0x7c]); expect(c.encodeInteger(-1000)).toEqual([0xfe, 0x7c]); expect(c.encodeInteger(10000)).toEqual([0x1c, 0x27, 0x10]); expect(c.encodeInteger(-10000)).toEqual([0x1c, 0xd8, 0xf0]); expect(c.encodeInteger(100000)).toEqual([0x1d, 0x00, 0x01, 0x86, 0xa0]); expect(c.encodeInteger(-100000)).toEqual([0x1d, 0xff, 0xfe, 0x79, 0x60]); }); it("encodes floats", function () { const c = new _cff_parser.CFFCompiler(); expect(c.encodeFloat(-2.25)).toEqual([0x1e, 0xe2, 0xa2, 0x5f]); expect(c.encodeFloat(5e-11)).toEqual([0x1e, 0x5c, 0x11, 0xff]); }); it("sanitizes name index", function () { const c = new _cff_parser.CFFCompiler(); let nameIndexCompiled = c.compileNameIndex(["[a"]); let parser = testParser(nameIndexCompiled); let nameIndex = parser.parseIndex(0); let names = parser.parseNameIndex(nameIndex.obj); expect(names).toEqual(["_a"]); let longName = ""; for (let i = 0; i < 129; i++) { longName += "_"; } nameIndexCompiled = c.compileNameIndex([longName]); parser = testParser(nameIndexCompiled); nameIndex = parser.parseIndex(0); names = parser.parseNameIndex(nameIndex.obj); expect(names[0].length).toEqual(127); }); it("compiles fdselect format 0", function () { const fdSelect = new _cff_parser.CFFFDSelect(0, [3, 2, 1]); const c = new _cff_parser.CFFCompiler(); const out = c.compileFDSelect(fdSelect); expect(out).toEqual([0, 3, 2, 1]); }); it("compiles fdselect format 3", function () { const fdSelect = new _cff_parser.CFFFDSelect(3, [0, 0, 1, 1]); const c = new _cff_parser.CFFCompiler(); const out = c.compileFDSelect(fdSelect); expect(out).toEqual([3, 0, 2, 0, 0, 0, 0, 2, 1, 0, 4]); }); it("compiles fdselect format 3, single range", function () { const fdSelect = new _cff_parser.CFFFDSelect(3, [0, 0]); const c = new _cff_parser.CFFCompiler(); const out = c.compileFDSelect(fdSelect); expect(out).toEqual([3, 0, 1, 0, 0, 0, 0, 2]); }); it("compiles charset of CID font", function () { const charset = new _cff_parser.CFFCharset(); const c = new _cff_parser.CFFCompiler(); const numGlyphs = 7; const out = c.compileCharset(charset, numGlyphs, new _cff_parser.CFFStrings(), true); expect(out).toEqual([2, 0, 0, 0, numGlyphs - 1]); }); it("compiles charset of non CID font", function () { const charset = new _cff_parser.CFFCharset(false, 0, ["space", "exclam"]); const c = new _cff_parser.CFFCompiler(); const numGlyphs = 3; const out = c.compileCharset(charset, numGlyphs, new _cff_parser.CFFStrings(), false); expect(out).toEqual([0, 0, 1, 0, 2]); }); });