Updating server dependancies. Also adding github.com/jaytaylor/html2text and gopkg.in/gomail.v2 (#5748)

1 files changed, 479 insertions, 0 deletions

diff --git a/vendor/golang.org/x/image/font/sfnt/proprietary_test.go b/vendor/golang.org/x/image/font/sfnt/proprietary_test.go
new file mode 100644
index 000000000..b105ee593
--- /dev/null
+++ b/vendor/golang.org/x/image/font/sfnt/proprietary_test.go
@@ -0,0 +1,479 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package sfnt
+
+/*
+This file contains opt-in tests for popular, high quality, proprietary fonts,
+made by companies such as Adobe and Microsoft. These fonts are generally
+available, but copies are not explicitly included in this repository due to
+licensing differences or file size concerns. To opt-in, run:
+
+go test golang.org/x/image/font/sfnt -args -proprietary
+
+Not all tests pass out-of-the-box on all systems. For example, the Microsoft
+Times New Roman font is downloadable gratis even on non-Windows systems, but as
+per the ttf-mscorefonts-installer Debian package, this requires accepting an
+End User License Agreement (EULA) and a CAB format decoder. These tests assume
+that such fonts have already been installed. You may need to specify the
+directories for these fonts:
+
+go test golang.org/x/image/font/sfnt -args -proprietary -adobeDir=/foo/bar/aFonts -microsoftDir=/foo/bar/mFonts
+
+To only run those tests for the Microsoft fonts:
+
+go test golang.org/x/image/font/sfnt -test.run=ProprietaryMicrosoft -args -proprietary
+*/
+
+// TODO: add Apple system fonts? Google fonts (Droid? Noto?)? Emoji fonts?
+
+// TODO: enable Apple/Microsoft tests by default on Darwin/Windows?
+
+import (
+	"errors"
+	"flag"
+	"io/ioutil"
+	"path/filepath"
+	"testing"
+
+	"golang.org/x/image/font"
+	"golang.org/x/image/math/fixed"
+)
+
+var (
+	proprietary = flag.Bool("proprietary", false, "test proprietary fonts not included in this repository")
+
+	adobeDir = flag.String(
+		"adobeDir",
+		// This needs to be set explicitly. There is no default dir on Debian:
+		// https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=736680
+		//
+		// Get the fonts from https://github.com/adobe-fonts, e.g.:
+		//	- https://github.com/adobe-fonts/source-code-pro/releases/latest
+		//	- https://github.com/adobe-fonts/source-han-sans/releases/latest
+		//	- https://github.com/adobe-fonts/source-sans-pro/releases/latest
+		//
+		// Copy all of the TTF and OTF files to the one directory, such as
+		// $HOME/adobe-fonts, and pass that as the -adobeDir flag here.
+		"",
+		"directory name for the Adobe proprietary fonts",
+	)
+
+	microsoftDir = flag.String(
+		"microsoftDir",
+		"/usr/share/fonts/truetype/msttcorefonts",
+		"directory name for the Microsoft proprietary fonts",
+	)
+)
+
+func TestProprietaryAdobeSourceCodeProOTF(t *testing.T) {
+	testProprietary(t, "adobe", "SourceCodePro-Regular.otf", 1500, 2)
+}
+
+func TestProprietaryAdobeSourceCodeProTTF(t *testing.T) {
+	testProprietary(t, "adobe", "SourceCodePro-Regular.ttf", 1500, 36)
+}
+
+func TestProprietaryAdobeSourceHanSansSC(t *testing.T) {
+	testProprietary(t, "adobe", "SourceHanSansSC-Regular.otf", 65535, 2)
+}
+
+func TestProprietaryAdobeSourceSansProOTF(t *testing.T) {
+	testProprietary(t, "adobe", "SourceSansPro-Regular.otf", 1800, 2)
+}
+
+func TestProprietaryAdobeSourceSansProTTF(t *testing.T) {
+	testProprietary(t, "adobe", "SourceSansPro-Regular.ttf", 1800, 54)
+}
+
+func TestProprietaryMicrosoftArial(t *testing.T) {
+	testProprietary(t, "microsoft", "Arial.ttf", 1200, 98)
+}
+
+func TestProprietaryMicrosoftComicSansMS(t *testing.T) {
+	testProprietary(t, "microsoft", "Comic_Sans_MS.ttf", 550, 98)
+}
+
+func TestProprietaryMicrosoftTimesNewRoman(t *testing.T) {
+	testProprietary(t, "microsoft", "Times_New_Roman.ttf", 1200, 98)
+}
+
+func TestProprietaryMicrosoftWebdings(t *testing.T) {
+	testProprietary(t, "microsoft", "Webdings.ttf", 200, -1)
+}
+
+// testProprietary tests that we can load every glyph in the named font.
+//
+// The exact number of glyphs in the font can differ across its various
+// versions, but as a sanity check, there should be at least minNumGlyphs.
+//
+// While this package is a work-in-progress, not every glyph can be loaded. The
+// firstUnsupportedGlyph argument, if non-negative, is the index of the first
+// unsupported glyph in the font. This number should increase over time (or set
+// negative), as the TODO's in this package are done.
+func testProprietary(t *testing.T, proprietor, filename string, minNumGlyphs, firstUnsupportedGlyph int) {
+	if !*proprietary {
+		t.Skip("skipping proprietary font test")
+	}
+
+	file, err := []byte(nil), error(nil)
+	switch proprietor {
+	case "adobe":
+		file, err = ioutil.ReadFile(filepath.Join(*adobeDir, filename))
+		if err != nil {
+			t.Fatalf("%v\nPerhaps you need to set the -adobeDir=%v flag?", err, *adobeDir)
+		}
+	case "microsoft":
+		file, err = ioutil.ReadFile(filepath.Join(*microsoftDir, filename))
+		if err != nil {
+			t.Fatalf("%v\nPerhaps you need to set the -microsoftDir=%v flag?", err, *microsoftDir)
+		}
+	default:
+		panic("unreachable")
+	}
+	f, err := Parse(file)
+	if err != nil {
+		t.Fatalf("Parse: %v", err)
+	}
+	ppem := fixed.Int26_6(f.UnitsPerEm())
+	qualifiedFilename := proprietor + "/" + filename
+	var buf Buffer
+
+	// Some of the tests below, such as which glyph index a particular rune
+	// maps to, can depend on the specific version of the proprietary font. If
+	// tested against a different version of that font, the test might (but not
+	// necessarily will) fail, even though the Go code is good. If so, log a
+	// message, but don't automatically fail (i.e. dont' call t.Fatalf).
+	gotVersion, err := f.Name(&buf, NameIDVersion)
+	if err != nil {
+		t.Fatalf("Name: %v", err)
+	}
+	wantVersion := proprietaryVersions[qualifiedFilename]
+	if gotVersion != wantVersion {
+		t.Logf("font version provided differs from the one the tests were written against:"+
+			"\ngot  %q\nwant %q", gotVersion, wantVersion)
+	}
+
+	numGlyphs := f.NumGlyphs()
+	if numGlyphs < minNumGlyphs {
+		t.Fatalf("NumGlyphs: got %d, want at least %d", numGlyphs, minNumGlyphs)
+	}
+
+	iMax := numGlyphs
+	if firstUnsupportedGlyph >= 0 {
+		iMax = firstUnsupportedGlyph
+	}
+	for i, numErrors := 0, 0; i < iMax; i++ {
+		if _, err := f.LoadGlyph(&buf, GlyphIndex(i), ppem, nil); err != nil {
+			t.Errorf("LoadGlyph(%d): %v", i, err)
+			numErrors++
+		}
+		if numErrors == 10 {
+			t.Fatal("LoadGlyph: too many errors")
+		}
+	}
+
+	for r, want := range proprietaryGlyphIndexTestCases[qualifiedFilename] {
+		got, err := f.GlyphIndex(&buf, r)
+		if err != nil {
+			t.Errorf("GlyphIndex(%q): %v", r, err)
+			continue
+		}
+		if got != want {
+			t.Errorf("GlyphIndex(%q): got %d, want %d", r, got, want)
+			continue
+		}
+	}
+
+	for r, want := range proprietaryGlyphTestCases[qualifiedFilename] {
+		x, err := f.GlyphIndex(&buf, r)
+		if err != nil {
+			t.Errorf("GlyphIndex(%q): %v", r, err)
+			continue
+		}
+		got, err := f.LoadGlyph(&buf, x, ppem, nil)
+		if err != nil {
+			t.Errorf("LoadGlyph(%q): %v", r, err)
+			continue
+		}
+		if err := checkSegmentsEqual(got, want); err != nil {
+			t.Errorf("LoadGlyph(%q): %v", r, err)
+			continue
+		}
+	}
+
+kernLoop:
+	for _, tc := range proprietaryKernTestCases[qualifiedFilename] {
+		var indexes [2]GlyphIndex
+		for i := range indexes {
+			x, err := f.GlyphIndex(&buf, tc.runes[i])
+			if x == 0 && err == nil {
+				err = errors.New("no glyph index found")
+			}
+			if err != nil {
+				t.Errorf("GlyphIndex(%q): %v", tc.runes[0], err)
+				continue kernLoop
+			}
+			indexes[i] = x
+		}
+		kern, err := f.Kern(&buf, indexes[0], indexes[1], tc.ppem, tc.hinting)
+		if err != nil {
+			t.Errorf("Kern(%q, %q, ppem=%d, hinting=%v): %v",
+				tc.runes[0], tc.runes[1], tc.ppem, tc.hinting, err)
+			continue
+		}
+		if got := Units(kern); got != tc.want {
+			t.Errorf("Kern(%q, %q, ppem=%d, hinting=%v): got %d, want %d",
+				tc.runes[0], tc.runes[1], tc.ppem, tc.hinting, got, tc.want)
+			continue
+		}
+	}
+}
+
+// proprietaryVersions holds the expected version string of each proprietary
+// font tested. If third parties such as Adobe or Microsoft update their fonts,
+// and the tests subsequently fail, these versions should be updated too.
+//
+// Updates are expected to be infrequent. For example, as of 2017, the fonts
+// installed by the Debian ttf-mscorefonts-installer package have last modified
+// times no later than 2001.
+var proprietaryVersions = map[string]string{
+	"adobe/SourceCodePro-Regular.otf":   "Version 2.030;PS 1.0;hotconv 16.6.51;makeotf.lib2.5.65220",
+	"adobe/SourceCodePro-Regular.ttf":   "Version 2.030;PS 1.000;hotconv 16.6.51;makeotf.lib2.5.65220",
+	"adobe/SourceHanSansSC-Regular.otf": "Version 1.004;PS 1.004;hotconv 1.0.82;makeotf.lib2.5.63406",
+	"adobe/SourceSansPro-Regular.otf":   "Version 2.020;PS 2.0;hotconv 1.0.86;makeotf.lib2.5.63406",
+	"adobe/SourceSansPro-Regular.ttf":   "Version 2.020;PS 2.000;hotconv 1.0.86;makeotf.lib2.5.63406",
+
+	"microsoft/Arial.ttf":           "Version 2.82",
+	"microsoft/Comic_Sans_MS.ttf":   "Version 2.10",
+	"microsoft/Times_New_Roman.ttf": "Version 2.82",
+	"microsoft/Webdings.ttf":        "Version 1.03",
+}
+
+// proprietaryGlyphIndexTestCases hold a sample of each font's rune to glyph
+// index cmap. The numerical values can be verified by running the ttx tool.
+var proprietaryGlyphIndexTestCases = map[string]map[rune]GlyphIndex{
+	"adobe/SourceCodePro-Regular.otf": {
+		'\u0030':     877,  // U+0030 DIGIT ZERO
+		'\u0041':     2,    // U+0041 LATIN CAPITAL LETTER A
+		'\u0061':     28,   // U+0061 LATIN SMALL LETTER A
+		'\u0104':     64,   // U+0104 LATIN CAPITAL LETTER A WITH OGONEK
+		'\u0125':     323,  // U+0125 LATIN SMALL LETTER H WITH CIRCUMFLEX
+		'\u01f4':     111,  // U+01F4 LATIN CAPITAL LETTER G WITH ACUTE
+		'\u03a3':     623,  // U+03A3 GREEK CAPITAL LETTER SIGMA
+		'\u2569':     1500, // U+2569 BOX DRAWINGS DOUBLE UP AND HORIZONTAL
+		'\U0001f100': 0,    // U+0001F100 DIGIT ZERO FULL STOP
+	},
+	"adobe/SourceCodePro-Regular.ttf": {
+		'\u0030': 877, // U+0030 DIGIT ZERO
+		'\u0041': 2,   // U+0041 LATIN CAPITAL LETTER A
+		'\u01f4': 111, // U+01F4 LATIN CAPITAL LETTER G WITH ACUTE
+	},
+	"adobe/SourceHanSansSC-Regular.otf": {
+		'\u0030':     17,    // U+0030 DIGIT ZERO
+		'\u0041':     34,    // U+0041 LATIN CAPITAL LETTER A
+		'\u00d7':     150,   // U+00D7 MULTIPLICATION SIGN
+		'\u1100':     365,   // U+1100 HANGUL CHOSEONG KIYEOK
+		'\u25ca':     1254,  // U+25CA LOZENGE
+		'\u2e9c':     1359,  // U+2E9C CJK RADICAL SUN
+		'\u304b':     1463,  // U+304B HIRAGANA LETTER KA
+		'\u4e2d':     9893,  // U+4E2D <CJK Ideograph>, 中
+		'\ua960':     47537, // U+A960 HANGUL CHOSEONG TIKEUT-MIEUM
+		'\ufb00':     58919, // U+FB00 LATIN SMALL LIGATURE FF
+		'\uffee':     59213, // U+FFEE HALFWIDTH WHITE CIRCLE
+		'\U0001f100': 59214, // U+0001F100 DIGIT ZERO FULL STOP
+		'\U0001f248': 59449, // U+0001F248 TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-6557
+		'\U0002f9f4': 61768, // U+0002F9F4 CJK COMPATIBILITY IDEOGRAPH-2F9F4
+	},
+	"adobe/SourceSansPro-Regular.otf": {
+		'\u0041': 2,    // U+0041 LATIN CAPITAL LETTER A
+		'\u03a3': 592,  // U+03A3 GREEK CAPITAL LETTER SIGMA
+		'\u0435': 999,  // U+0435 CYRILLIC SMALL LETTER IE
+		'\u2030': 1728, // U+2030 PER MILLE SIGN
+	},
+	"adobe/SourceSansPro-Regular.ttf": {
+		'\u0041': 2,    // U+0041 LATIN CAPITAL LETTER A
+		'\u03a3': 592,  // U+03A3 GREEK CAPITAL LETTER SIGMA
+		'\u0435': 999,  // U+0435 CYRILLIC SMALL LETTER IE
+		'\u2030': 1728, // U+2030 PER MILLE SIGN
+	},
+
+	"microsoft/Arial.ttf": {
+		'\u0041':     36,   // U+0041 LATIN CAPITAL LETTER A
+		'\u00f1':     120,  // U+00F1 LATIN SMALL LETTER N WITH TILDE
+		'\u0401':     556,  // U+0401 CYRILLIC CAPITAL LETTER IO
+		'\u200d':     745,  // U+200D ZERO WIDTH JOINER
+		'\u20ab':     1150, // U+20AB DONG SIGN
+		'\u2229':     320,  // U+2229 INTERSECTION
+		'\u04e9':     1319, // U+04E9 CYRILLIC SMALL LETTER BARRED O
+		'\U0001f100': 0,    // U+0001F100 DIGIT ZERO FULL STOP
+	},
+	"microsoft/Comic_Sans_MS.ttf": {
+		'\u0041': 36,  // U+0041 LATIN CAPITAL LETTER A
+		'\u03af': 573, // U+03AF GREEK SMALL LETTER IOTA WITH TONOS
+	},
+	"microsoft/Times_New_Roman.ttf": {
+		'\u0041': 36,  // U+0041 LATIN CAPITAL LETTER A
+		'\u0042': 37,  // U+0041 LATIN CAPITAL LETTER B
+		'\u266a': 392, // U+266A EIGHTH NOTE
+		'\uf041': 0,   // PRIVATE USE AREA
+		'\uf042': 0,   // PRIVATE USE AREA
+	},
+	"microsoft/Webdings.ttf": {
+		'\u0041': 0,  // U+0041 LATIN CAPITAL LETTER A
+		'\u0042': 0,  // U+0041 LATIN CAPITAL LETTER B
+		'\u266a': 0,  // U+266A EIGHTH NOTE
+		'\uf041': 36, // PRIVATE USE AREA
+		'\uf042': 37, // PRIVATE USE AREA
+	},
+}
+
+// proprietaryGlyphTestCases hold a sample of each font's glyph vectors. The
+// numerical values can be verified by running the ttx tool, remembering that:
+//	- for PostScript glyphs, ttx coordinates are relative, and hstem / vstem
+//	  operators are hinting-related and can be ignored.
+//	- for TrueType glyphs, ttx coordinates are absolute, and consecutive
+//	  off-curve points implies an on-curve point at the midpoint.
+var proprietaryGlyphTestCases = map[string]map[rune][]Segment{
+	"adobe/SourceSansPro-Regular.otf": {
+		',': {
+			// - contour #0
+			// 67 -170 rmoveto
+			moveTo(67, -170),
+			// 81 34 50 67 86 vvcurveto
+			cubeTo(148, -136, 198, -69, 198, 17),
+			// 60 -26 37 -43 -33 -28 -22 -36 -37 27 -20 32 3 4 0 1 3 vhcurveto
+			cubeTo(198, 77, 172, 114, 129, 114),
+			cubeTo(96, 114, 68, 92, 68, 56),
+			cubeTo(68, 19, 95, -1, 127, -1),
+			cubeTo(130, -1, 134, -1, 137, 0),
+			// 1 -53 -34 -44 -57 -25 rrcurveto
+			cubeTo(138, -53, 104, -97, 47, -122),
+		},
+		'Q': {
+			// - contour #0
+			// 332 57 rmoveto
+			moveTo(332, 57),
+			// -117 -77 106 168 163 77 101 117 117 77 -101 -163 -168 -77 -106 -117 hvcurveto
+			cubeTo(215, 57, 138, 163, 138, 331),
+			cubeTo(138, 494, 215, 595, 332, 595),
+			cubeTo(449, 595, 526, 494, 526, 331),
+			cubeTo(526, 163, 449, 57, 332, 57),
+			// - contour #1
+			// 201 -222 rmoveto
+			moveTo(533, -165),
+			// 39 35 7 8 20 hvcurveto
+			cubeTo(572, -165, 607, -158, 627, -150),
+			// -16 64 rlineto
+			lineTo(611, -86),
+			// -5 -18 -22 -4 -29 hhcurveto
+			cubeTo(593, -91, 571, -95, 542, -95),
+			// -71 -60 29 58 -30 hvcurveto
+			cubeTo(471, -95, 411, -66, 381, -8),
+			// 139 24 93 126 189 vvcurveto
+			cubeTo(520, 16, 613, 142, 613, 331),
+			// 209 -116 128 -165 -165 -115 -127 -210 -193 96 -127 143 -20 vhcurveto
+			cubeTo(613, 540, 497, 668, 332, 668),
+			cubeTo(167, 668, 52, 541, 52, 331),
+			cubeTo(52, 138, 148, 11, 291, -9),
+			// -90 38 83 -66 121 hhcurveto
+			cubeTo(329, -99, 412, -165, 533, -165),
+		},
+	},
+
+	"microsoft/Arial.ttf": {
+		',': {
+			// - contour #0
+			moveTo(182, 0),
+			lineTo(182, 205),
+			lineTo(387, 205),
+			lineTo(387, 0),
+			quadTo(387, -113, 347, -182),
+			quadTo(307, -252, 220, -290),
+			lineTo(170, -213),
+			quadTo(227, -188, 254, -139),
+			quadTo(281, -91, 284, 0),
+			lineTo(182, 0),
+		},
+		'i': {
+			// - contour #0
+			moveTo(136, 1259),
+			lineTo(136, 1466),
+			lineTo(316, 1466),
+			lineTo(316, 1259),
+			lineTo(136, 1259),
+			// - contour #1
+			moveTo(136, 0),
+			lineTo(136, 1062),
+			lineTo(316, 1062),
+			lineTo(316, 0),
+			lineTo(136, 0),
+		},
+		'o': {
+			// - contour #0
+			moveTo(68, 531),
+			quadTo(68, 826, 232, 968),
+			quadTo(369, 1086, 566, 1086),
+			quadTo(785, 1086, 924, 942),
+			quadTo(1063, 799, 1063, 546),
+			quadTo(1063, 341, 1001, 223),
+			quadTo(940, 106, 822, 41),
+			quadTo(705, -24, 566, -24),
+			quadTo(343, -24, 205, 119),
+			quadTo(68, 262, 68, 531),
+			// - contour #1
+			moveTo(253, 531),
+			quadTo(253, 327, 342, 225),
+			quadTo(431, 124, 566, 124),
+			quadTo(700, 124, 789, 226),
+			quadTo(878, 328, 878, 537),
+			quadTo(878, 734, 788, 835),
+			quadTo(699, 937, 566, 937),
+			quadTo(431, 937, 342, 836),
+			quadTo(253, 735, 253, 531),
+		},
+	},
+}
+
+type kernTestCase struct {
+	ppem    fixed.Int26_6
+	hinting font.Hinting
+	runes   [2]rune
+	want    Units
+}
+
+// proprietaryKernTestCases hold a sample of each font's kerning pairs. The
+// numerical values can be verified by running the ttx tool.
+var proprietaryKernTestCases = map[string][]kernTestCase{
+	"microsoft/Arial.ttf": {
+		{2048, font.HintingNone, [2]rune{'A', 'V'}, -152},
+		// U+03B8 GREEK SMALL LETTER THETA
+		// U+03BB GREEK SMALL LETTER LAMDA
+		{2048, font.HintingNone, [2]rune{'\u03b8', '\u03bb'}, -39},
+		{2048, font.HintingNone, [2]rune{'\u03bb', '\u03b8'}, -0},
+	},
+	"microsoft/Comic_Sans_MS.ttf": {
+		{2048, font.HintingNone, [2]rune{'A', 'V'}, 0},
+	},
+	"microsoft/Times_New_Roman.ttf": {
+		{768, font.HintingNone, [2]rune{'A', 'V'}, -99},
+		{768, font.HintingFull, [2]rune{'A', 'V'}, -128},
+		{2048, font.HintingNone, [2]rune{'A', 'A'}, 0},
+		{2048, font.HintingNone, [2]rune{'A', 'T'}, -227},
+		{2048, font.HintingNone, [2]rune{'A', 'V'}, -264},
+		{2048, font.HintingNone, [2]rune{'T', 'A'}, -164},
+		{2048, font.HintingNone, [2]rune{'T', 'T'}, 0},
+		{2048, font.HintingNone, [2]rune{'T', 'V'}, 0},
+		{2048, font.HintingNone, [2]rune{'V', 'A'}, -264},
+		{2048, font.HintingNone, [2]rune{'V', 'T'}, 0},
+		{2048, font.HintingNone, [2]rune{'V', 'V'}, 0},
+		// U+0390 GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS
+		// U+0393 GREEK CAPITAL LETTER GAMMA
+		{2048, font.HintingNone, [2]rune{'\u0390', '\u0393'}, 0},
+		{2048, font.HintingNone, [2]rune{'\u0393', '\u0390'}, 76},
+	},
+	"microsoft/Webdings.ttf": {
+		{2048, font.HintingNone, [2]rune{'\uf041', '\uf042'}, 0},
+	},
+}