diff --git a/Gopkg.lock b/Gopkg.lock index 5e46ec5..a8f4ee4 100644 --- a/Gopkg.lock +++ b/Gopkg.lock @@ -164,9 +164,12 @@ [[projects]] branch = "master" - digest = "1:d23e0bbfa4e45fe847e61fdfd442b24adf9bd3d0b050a846f9ef0f3af4f43c86" + digest = "1:6dd6ac30401547ebcd1c0ee7a08e74e9ae872eba28607309979e9ed9776cee21" name = "maunium.net/go/mautrix" - packages = ["."] + packages = [ + ".", + "format", + ] pruneopts = "UT" revision = "e8080dcf484d1db9021d2019fee132ffc9e37e3c" @@ -208,6 +211,7 @@ "gopkg.in/toast.v1", "gopkg.in/yaml.v2", "maunium.net/go/mautrix", + "maunium.net/go/mautrix/format", "maunium.net/go/tcell", "maunium.net/go/tview", ] diff --git a/matrix/matrix.go b/matrix/matrix.go index cf9e463..54efd6e 100644 --- a/matrix/matrix.go +++ b/matrix/matrix.go @@ -21,6 +21,7 @@ import ( "fmt" "io" "io/ioutil" + "maunium.net/go/mautrix/format" "net/http" "net/url" "os" @@ -506,6 +507,9 @@ func (c *Container) SendMarkdownMessage(roomID string, msgtype mautrix.MessageTy if html == text { return c.SendMessage(roomID, msgtype, text) } + // Oh god this is horrible + // but at least /rainbow doesn't put HTML into the plaintext :D + text = format.HTMLToText(html) // Remove markdown link stuff from plaintext mentions and room links text = mentionRegex.ReplaceAllString(text, "$1") diff --git a/ui/messages/parser/colormap.go b/ui/messages/parser/colormap.go new file mode 100644 index 0000000..19cdf06 --- /dev/null +++ b/ui/messages/parser/colormap.go @@ -0,0 +1,156 @@ +// From https://github.com/golang/image/blob/master/colornames/colornames.go +package parser + +import ( + "image/color" +) + +var ColorMap = map[string]color.RGBA{ + "aliceblue": {0xf0, 0xf8, 0xff, 0xff}, // rgb(240, 248, 255) + "antiquewhite": {0xfa, 0xeb, 0xd7, 0xff}, // rgb(250, 235, 215) + "aqua": {0x00, 0xff, 0xff, 0xff}, // rgb(0, 255, 255) + "aquamarine": {0x7f, 0xff, 0xd4, 0xff}, // rgb(127, 255, 212) + "azure": {0xf0, 0xff, 0xff, 0xff}, // rgb(240, 255, 255) + "beige": {0xf5, 0xf5, 0xdc, 0xff}, // rgb(245, 245, 220) + "bisque": {0xff, 0xe4, 0xc4, 0xff}, // rgb(255, 228, 196) + "black": {0x00, 0x00, 0x00, 0xff}, // rgb(0, 0, 0) + "blanchedalmond": {0xff, 0xeb, 0xcd, 0xff}, // rgb(255, 235, 205) + "blue": {0x00, 0x00, 0xff, 0xff}, // rgb(0, 0, 255) + "blueviolet": {0x8a, 0x2b, 0xe2, 0xff}, // rgb(138, 43, 226) + "brown": {0xa5, 0x2a, 0x2a, 0xff}, // rgb(165, 42, 42) + "burlywood": {0xde, 0xb8, 0x87, 0xff}, // rgb(222, 184, 135) + "cadetblue": {0x5f, 0x9e, 0xa0, 0xff}, // rgb(95, 158, 160) + "chartreuse": {0x7f, 0xff, 0x00, 0xff}, // rgb(127, 255, 0) + "chocolate": {0xd2, 0x69, 0x1e, 0xff}, // rgb(210, 105, 30) + "coral": {0xff, 0x7f, 0x50, 0xff}, // rgb(255, 127, 80) + "cornflowerblue": {0x64, 0x95, 0xed, 0xff}, // rgb(100, 149, 237) + "cornsilk": {0xff, 0xf8, 0xdc, 0xff}, // rgb(255, 248, 220) + "crimson": {0xdc, 0x14, 0x3c, 0xff}, // rgb(220, 20, 60) + "cyan": {0x00, 0xff, 0xff, 0xff}, // rgb(0, 255, 255) + "darkblue": {0x00, 0x00, 0x8b, 0xff}, // rgb(0, 0, 139) + "darkcyan": {0x00, 0x8b, 0x8b, 0xff}, // rgb(0, 139, 139) + "darkgoldenrod": {0xb8, 0x86, 0x0b, 0xff}, // rgb(184, 134, 11) + "darkgray": {0xa9, 0xa9, 0xa9, 0xff}, // rgb(169, 169, 169) + "darkgreen": {0x00, 0x64, 0x00, 0xff}, // rgb(0, 100, 0) + "darkgrey": {0xa9, 0xa9, 0xa9, 0xff}, // rgb(169, 169, 169) + "darkkhaki": {0xbd, 0xb7, 0x6b, 0xff}, // rgb(189, 183, 107) + "darkmagenta": {0x8b, 0x00, 0x8b, 0xff}, // rgb(139, 0, 139) + "darkolivegreen": {0x55, 0x6b, 0x2f, 0xff}, // rgb(85, 107, 47) + "darkorange": {0xff, 0x8c, 0x00, 0xff}, // rgb(255, 140, 0) + "darkorchid": {0x99, 0x32, 0xcc, 0xff}, // rgb(153, 50, 204) + "darkred": {0x8b, 0x00, 0x00, 0xff}, // rgb(139, 0, 0) + "darksalmon": {0xe9, 0x96, 0x7a, 0xff}, // rgb(233, 150, 122) + "darkseagreen": {0x8f, 0xbc, 0x8f, 0xff}, // rgb(143, 188, 143) + "darkslateblue": {0x48, 0x3d, 0x8b, 0xff}, // rgb(72, 61, 139) + "darkslategray": {0x2f, 0x4f, 0x4f, 0xff}, // rgb(47, 79, 79) + "darkslategrey": {0x2f, 0x4f, 0x4f, 0xff}, // rgb(47, 79, 79) + "darkturquoise": {0x00, 0xce, 0xd1, 0xff}, // rgb(0, 206, 209) + "darkviolet": {0x94, 0x00, 0xd3, 0xff}, // rgb(148, 0, 211) + "deeppink": {0xff, 0x14, 0x93, 0xff}, // rgb(255, 20, 147) + "deepskyblue": {0x00, 0xbf, 0xff, 0xff}, // rgb(0, 191, 255) + "dimgray": {0x69, 0x69, 0x69, 0xff}, // rgb(105, 105, 105) + "dimgrey": {0x69, 0x69, 0x69, 0xff}, // rgb(105, 105, 105) + "dodgerblue": {0x1e, 0x90, 0xff, 0xff}, // rgb(30, 144, 255) + "firebrick": {0xb2, 0x22, 0x22, 0xff}, // rgb(178, 34, 34) + "floralwhite": {0xff, 0xfa, 0xf0, 0xff}, // rgb(255, 250, 240) + "forestgreen": {0x22, 0x8b, 0x22, 0xff}, // rgb(34, 139, 34) + "fuchsia": {0xff, 0x00, 0xff, 0xff}, // rgb(255, 0, 255) + "gainsboro": {0xdc, 0xdc, 0xdc, 0xff}, // rgb(220, 220, 220) + "ghostwhite": {0xf8, 0xf8, 0xff, 0xff}, // rgb(248, 248, 255) + "gold": {0xff, 0xd7, 0x00, 0xff}, // rgb(255, 215, 0) + "goldenrod": {0xda, 0xa5, 0x20, 0xff}, // rgb(218, 165, 32) + "gray": {0x80, 0x80, 0x80, 0xff}, // rgb(128, 128, 128) + "green": {0x00, 0x80, 0x00, 0xff}, // rgb(0, 128, 0) + "greenyellow": {0xad, 0xff, 0x2f, 0xff}, // rgb(173, 255, 47) + "grey": {0x80, 0x80, 0x80, 0xff}, // rgb(128, 128, 128) + "honeydew": {0xf0, 0xff, 0xf0, 0xff}, // rgb(240, 255, 240) + "hotpink": {0xff, 0x69, 0xb4, 0xff}, // rgb(255, 105, 180) + "indianred": {0xcd, 0x5c, 0x5c, 0xff}, // rgb(205, 92, 92) + "indigo": {0x4b, 0x00, 0x82, 0xff}, // rgb(75, 0, 130) + "ivory": {0xff, 0xff, 0xf0, 0xff}, // rgb(255, 255, 240) + "khaki": {0xf0, 0xe6, 0x8c, 0xff}, // rgb(240, 230, 140) + "lavender": {0xe6, 0xe6, 0xfa, 0xff}, // rgb(230, 230, 250) + "lavenderblush": {0xff, 0xf0, 0xf5, 0xff}, // rgb(255, 240, 245) + "lawngreen": {0x7c, 0xfc, 0x00, 0xff}, // rgb(124, 252, 0) + "lemonchiffon": {0xff, 0xfa, 0xcd, 0xff}, // rgb(255, 250, 205) + "lightblue": {0xad, 0xd8, 0xe6, 0xff}, // rgb(173, 216, 230) + "lightcoral": {0xf0, 0x80, 0x80, 0xff}, // rgb(240, 128, 128) + "lightcyan": {0xe0, 0xff, 0xff, 0xff}, // rgb(224, 255, 255) + "lightgoldenrodyellow": {0xfa, 0xfa, 0xd2, 0xff}, // rgb(250, 250, 210) + "lightgray": {0xd3, 0xd3, 0xd3, 0xff}, // rgb(211, 211, 211) + "lightgreen": {0x90, 0xee, 0x90, 0xff}, // rgb(144, 238, 144) + "lightgrey": {0xd3, 0xd3, 0xd3, 0xff}, // rgb(211, 211, 211) + "lightpink": {0xff, 0xb6, 0xc1, 0xff}, // rgb(255, 182, 193) + "lightsalmon": {0xff, 0xa0, 0x7a, 0xff}, // rgb(255, 160, 122) + "lightseagreen": {0x20, 0xb2, 0xaa, 0xff}, // rgb(32, 178, 170) + "lightskyblue": {0x87, 0xce, 0xfa, 0xff}, // rgb(135, 206, 250) + "lightslategray": {0x77, 0x88, 0x99, 0xff}, // rgb(119, 136, 153) + "lightslategrey": {0x77, 0x88, 0x99, 0xff}, // rgb(119, 136, 153) + "lightsteelblue": {0xb0, 0xc4, 0xde, 0xff}, // rgb(176, 196, 222) + "lightyellow": {0xff, 0xff, 0xe0, 0xff}, // rgb(255, 255, 224) + "lime": {0x00, 0xff, 0x00, 0xff}, // rgb(0, 255, 0) + "limegreen": {0x32, 0xcd, 0x32, 0xff}, // rgb(50, 205, 50) + "linen": {0xfa, 0xf0, 0xe6, 0xff}, // rgb(250, 240, 230) + "magenta": {0xff, 0x00, 0xff, 0xff}, // rgb(255, 0, 255) + "maroon": {0x80, 0x00, 0x00, 0xff}, // rgb(128, 0, 0) + "mediumaquamarine": {0x66, 0xcd, 0xaa, 0xff}, // rgb(102, 205, 170) + "mediumblue": {0x00, 0x00, 0xcd, 0xff}, // rgb(0, 0, 205) + "mediumorchid": {0xba, 0x55, 0xd3, 0xff}, // rgb(186, 85, 211) + "mediumpurple": {0x93, 0x70, 0xdb, 0xff}, // rgb(147, 112, 219) + "mediumseagreen": {0x3c, 0xb3, 0x71, 0xff}, // rgb(60, 179, 113) + "mediumslateblue": {0x7b, 0x68, 0xee, 0xff}, // rgb(123, 104, 238) + "mediumspringgreen": {0x00, 0xfa, 0x9a, 0xff}, // rgb(0, 250, 154) + "mediumturquoise": {0x48, 0xd1, 0xcc, 0xff}, // rgb(72, 209, 204) + "mediumvioletred": {0xc7, 0x15, 0x85, 0xff}, // rgb(199, 21, 133) + "midnightblue": {0x19, 0x19, 0x70, 0xff}, // rgb(25, 25, 112) + "mintcream": {0xf5, 0xff, 0xfa, 0xff}, // rgb(245, 255, 250) + "mistyrose": {0xff, 0xe4, 0xe1, 0xff}, // rgb(255, 228, 225) + "moccasin": {0xff, 0xe4, 0xb5, 0xff}, // rgb(255, 228, 181) + "navajowhite": {0xff, 0xde, 0xad, 0xff}, // rgb(255, 222, 173) + "navy": {0x00, 0x00, 0x80, 0xff}, // rgb(0, 0, 128) + "oldlace": {0xfd, 0xf5, 0xe6, 0xff}, // rgb(253, 245, 230) + "olive": {0x80, 0x80, 0x00, 0xff}, // rgb(128, 128, 0) + "olivedrab": {0x6b, 0x8e, 0x23, 0xff}, // rgb(107, 142, 35) + "orange": {0xff, 0xa5, 0x00, 0xff}, // rgb(255, 165, 0) + "orangered": {0xff, 0x45, 0x00, 0xff}, // rgb(255, 69, 0) + "orchid": {0xda, 0x70, 0xd6, 0xff}, // rgb(218, 112, 214) + "palegoldenrod": {0xee, 0xe8, 0xaa, 0xff}, // rgb(238, 232, 170) + "palegreen": {0x98, 0xfb, 0x98, 0xff}, // rgb(152, 251, 152) + "paleturquoise": {0xaf, 0xee, 0xee, 0xff}, // rgb(175, 238, 238) + "palevioletred": {0xdb, 0x70, 0x93, 0xff}, // rgb(219, 112, 147) + "papayawhip": {0xff, 0xef, 0xd5, 0xff}, // rgb(255, 239, 213) + "peachpuff": {0xff, 0xda, 0xb9, 0xff}, // rgb(255, 218, 185) + "peru": {0xcd, 0x85, 0x3f, 0xff}, // rgb(205, 133, 63) + "pink": {0xff, 0xc0, 0xcb, 0xff}, // rgb(255, 192, 203) + "plum": {0xdd, 0xa0, 0xdd, 0xff}, // rgb(221, 160, 221) + "powderblue": {0xb0, 0xe0, 0xe6, 0xff}, // rgb(176, 224, 230) + "purple": {0x80, 0x00, 0x80, 0xff}, // rgb(128, 0, 128) + "red": {0xff, 0x00, 0x00, 0xff}, // rgb(255, 0, 0) + "rosybrown": {0xbc, 0x8f, 0x8f, 0xff}, // rgb(188, 143, 143) + "royalblue": {0x41, 0x69, 0xe1, 0xff}, // rgb(65, 105, 225) + "saddlebrown": {0x8b, 0x45, 0x13, 0xff}, // rgb(139, 69, 19) + "salmon": {0xfa, 0x80, 0x72, 0xff}, // rgb(250, 128, 114) + "sandybrown": {0xf4, 0xa4, 0x60, 0xff}, // rgb(244, 164, 96) + "seagreen": {0x2e, 0x8b, 0x57, 0xff}, // rgb(46, 139, 87) + "seashell": {0xff, 0xf5, 0xee, 0xff}, // rgb(255, 245, 238) + "sienna": {0xa0, 0x52, 0x2d, 0xff}, // rgb(160, 82, 45) + "silver": {0xc0, 0xc0, 0xc0, 0xff}, // rgb(192, 192, 192) + "skyblue": {0x87, 0xce, 0xeb, 0xff}, // rgb(135, 206, 235) + "slateblue": {0x6a, 0x5a, 0xcd, 0xff}, // rgb(106, 90, 205) + "slategray": {0x70, 0x80, 0x90, 0xff}, // rgb(112, 128, 144) + "slategrey": {0x70, 0x80, 0x90, 0xff}, // rgb(112, 128, 144) + "snow": {0xff, 0xfa, 0xfa, 0xff}, // rgb(255, 250, 250) + "springgreen": {0x00, 0xff, 0x7f, 0xff}, // rgb(0, 255, 127) + "steelblue": {0x46, 0x82, 0xb4, 0xff}, // rgb(70, 130, 180) + "tan": {0xd2, 0xb4, 0x8c, 0xff}, // rgb(210, 180, 140) + "teal": {0x00, 0x80, 0x80, 0xff}, // rgb(0, 128, 128) + "thistle": {0xd8, 0xbf, 0xd8, 0xff}, // rgb(216, 191, 216) + "tomato": {0xff, 0x63, 0x47, 0xff}, // rgb(255, 99, 71) + "turquoise": {0x40, 0xe0, 0xd0, 0xff}, // rgb(64, 224, 208) + "violet": {0xee, 0x82, 0xee, 0xff}, // rgb(238, 130, 238) + "wheat": {0xf5, 0xde, 0xb3, 0xff}, // rgb(245, 222, 179) + "white": {0xff, 0xff, 0xff, 0xff}, // rgb(255, 255, 255) + "whitesmoke": {0xf5, 0xf5, 0xf5, 0xff}, // rgb(245, 245, 245) + "yellow": {0xff, 0xff, 0x00, 0xff}, // rgb(255, 255, 0) + "yellowgreen": {0x9a, 0xcd, 0x32, 0xff}, // rgb(154, 205, 50) +} diff --git a/ui/messages/parser/htmlparser.go b/ui/messages/parser/htmlparser.go index b2deeba..850dc52 100644 --- a/ui/messages/parser/htmlparser.go +++ b/ui/messages/parser/htmlparser.go @@ -43,22 +43,28 @@ type taggedTString struct { tag string } -var AdjustStyleBold = func(style tcell.Style) tcell.Style { +func AdjustStyleBold(style tcell.Style) tcell.Style { return style.Bold(true) } -var AdjustStyleItalic = func(style tcell.Style) tcell.Style { +func AdjustStyleItalic(style tcell.Style) tcell.Style { return style.Italic(true) } -var AdjustStyleUnderline = func(style tcell.Style) tcell.Style { +func AdjustStyleUnderline(style tcell.Style) tcell.Style { return style.Underline(true) } -var AdjustStyleStrikethrough = func(style tcell.Style) tcell.Style { +func AdjustStyleStrikethrough(style tcell.Style) tcell.Style { return style.Strikethrough(true) } +func AdjustStyleColor(color tcell.Color) func(tcell.Style) tcell.Style { + return func(style tcell.Style) tcell.Style { + return style.Foreground(color) + } +} + func (parser *htmlParser) getAttribute(node *html.Node, attribute string) string { for _, attr := range node.Attr { if attr.Key == attribute { @@ -131,21 +137,26 @@ func (parser *htmlParser) basicFormatToTString(node *html.Node, stripLinebreak b func (parser *htmlParser) fontToTString(node *html.Node, stripLinebreak bool) tstring.TString { str := parser.nodeToTagAwareTString(node.FirstChild, stripLinebreak) - hex := parser.getAttribute(node, "color") + hex := parser.getAttribute(node, "data-mx-color") if len(hex) == 0 { - return str + hex = parser.getAttribute(node, "color") + if len(hex) == 0 { + return str + } } color, err := colorful.Hex(hex) if err != nil { - return str + color2, ok := ColorMap[strings.ToLower(hex)] + if !ok { + return str + } + color, _ = colorful.MakeColor(color2) } r, g, b := color.RGB255() tcellColor := tcell.NewRGBColor(int32(r), int32(g), int32(b)) - str.AdjustStyleFull(func(style tcell.Style) tcell.Style { - return style.Foreground(tcellColor) - }) + str.AdjustStyleFull(AdjustStyleColor(tcellColor)) return str } diff --git a/vendor/maunium.net/go/mautrix/format/htmlparser.go b/vendor/maunium.net/go/mautrix/format/htmlparser.go new file mode 100644 index 0000000..b681be6 --- /dev/null +++ b/vendor/maunium.net/go/mautrix/format/htmlparser.go @@ -0,0 +1,257 @@ +// Copyright 2018 Tulir Asokan +package format + +import ( + "fmt" + "math" + "regexp" + "strings" + + "golang.org/x/net/html" + "strconv" +) + +var MatrixToURL = regexp.MustCompile("^(?:https?://)?(?:www\\.)?matrix\\.to/#/([#@!+].*)(?:/(\\$.+))?") + +type TextConverter func(string) string + +type HTMLParser struct { + PillConverter func(mxid, eventID string) string + TabsToSpaces int + Newline string + BoldConverter TextConverter + ItalicConverter TextConverter + StrikethroughConverter TextConverter + UnderlineConverter TextConverter + MonospaceBlockConverter TextConverter + MonospaceConverter TextConverter +} + +type TaggedString struct { + string + tag string +} + +func (parser *HTMLParser) getAttribute(node *html.Node, attribute string) string { + for _, attr := range node.Attr { + if attr.Key == attribute { + return attr.Val + } + } + return "" +} + +func Digits(num int) int { + return int(math.Floor(math.Log10(float64(num))) + 1) +} + +func (parser *HTMLParser) listToString(node *html.Node, stripLinebreak bool) string { + ordered := node.Data == "ol" + taggedChildren := parser.nodeToTaggedStrings(node.FirstChild, stripLinebreak) + counter := 1 + indentLength := 0 + if ordered { + start := parser.getAttribute(node, "start") + if len(start) > 0 { + counter, _ = strconv.Atoi(start) + } + + longestIndex := (counter - 1) + len(taggedChildren) + indentLength = Digits(longestIndex) + } + indent := strings.Repeat(" ", indentLength+2) + var children []string + for _, child := range taggedChildren { + if child.tag != "li" { + continue + } + var prefix string + if ordered { + indexPadding := indentLength - Digits(counter) + prefix = fmt.Sprintf("%d. %s", counter, strings.Repeat(" ", indexPadding)) + } else { + prefix = "● " + } + str := prefix + child.string + counter++ + parts := strings.Split(str, "\n") + for i, part := range parts[1:] { + parts[i+1] = indent + part + } + str = strings.Join(parts, "\n") + children = append(children, str) + } + return strings.Join(children, "\n") +} + +func (parser *HTMLParser) basicFormatToString(node *html.Node, stripLinebreak bool) string { + str := parser.nodeToTagAwareString(node.FirstChild, stripLinebreak) + switch node.Data { + case "b", "strong": + if parser.BoldConverter != nil { + return parser.BoldConverter(str) + } + return fmt.Sprintf("**%s**", str) + case "i", "em": + if parser.ItalicConverter != nil { + return parser.ItalicConverter(str) + } + return fmt.Sprintf("_%s_", str) + case "s", "del": + if parser.StrikethroughConverter != nil { + return parser.StrikethroughConverter(str) + } + return fmt.Sprintf("~~%s~~", str) + case "u", "ins": + if parser.UnderlineConverter != nil { + return parser.UnderlineConverter(str) + } + case "tt", "code": + if parser.MonospaceConverter != nil { + return parser.MonospaceConverter(str) + } + } + return str +} + +func (parser *HTMLParser) headerToString(node *html.Node, stripLinebreak bool) string { + children := parser.nodeToStrings(node.FirstChild, stripLinebreak) + length := int(node.Data[1] - '0') + prefix := strings.Repeat("#", length) + " " + return prefix + strings.Join(children, "") +} + +func (parser *HTMLParser) blockquoteToString(node *html.Node, stripLinebreak bool) string { + str := parser.nodeToTagAwareString(node.FirstChild, stripLinebreak) + childrenArr := strings.Split(strings.TrimSpace(str), "\n") + for index, child := range childrenArr { + childrenArr[index] = "> " + child + } + return strings.Join(childrenArr, "\n") +} + +func (parser *HTMLParser) linkToString(node *html.Node, stripLinebreak bool) string { + str := parser.nodeToTagAwareString(node.FirstChild, stripLinebreak) + href := parser.getAttribute(node, "href") + if len(href) == 0 { + return str + } + match := MatrixToURL.FindStringSubmatch(href) + if len(match) == 2 || len(match) == 3 { + if parser.PillConverter != nil { + mxid := match[1] + eventID := "" + if len(match) == 3 { + eventID = match[2] + } + return parser.PillConverter(mxid, eventID) + } + return str + } + return fmt.Sprintf("%s (%s)", str, href) +} + +func (parser *HTMLParser) tagToString(node *html.Node, stripLinebreak bool) string { + switch node.Data { + case "blockquote": + return parser.blockquoteToString(node, stripLinebreak) + case "ol", "ul": + return parser.listToString(node, stripLinebreak) + case "h1", "h2", "h3", "h4", "h5", "h6": + return parser.headerToString(node, stripLinebreak) + case "br": + return parser.Newline + case "b", "strong", "i", "em", "s", "del", "u", "ins", "tt", "code": + return parser.basicFormatToString(node, stripLinebreak) + case "a": + return parser.linkToString(node, stripLinebreak) + case "p": + return parser.nodeToTagAwareString(node.FirstChild, stripLinebreak) + "\n" + case "pre": + var preStr string + if node.FirstChild != nil && node.FirstChild.Type == html.ElementNode && node.FirstChild.Data == "code" { + preStr = parser.nodeToString(node.FirstChild.FirstChild, false) + } else { + preStr = parser.nodeToString(node.FirstChild, false) + } + if parser.MonospaceBlockConverter != nil { + return parser.MonospaceBlockConverter(preStr) + } + return preStr + default: + return parser.nodeToTagAwareString(node.FirstChild, stripLinebreak) + } +} + +func (parser *HTMLParser) singleNodeToString(node *html.Node, stripLinebreak bool) TaggedString { + switch node.Type { + case html.TextNode: + if stripLinebreak { + node.Data = strings.Replace(node.Data, "\n", "", -1) + } + return TaggedString{node.Data, "text"} + case html.ElementNode: + return TaggedString{parser.tagToString(node, stripLinebreak), node.Data} + case html.DocumentNode: + return TaggedString{parser.nodeToTagAwareString(node.FirstChild, stripLinebreak), "html"} + default: + return TaggedString{"", "unknown"} + } +} + +func (parser *HTMLParser) nodeToTaggedStrings(node *html.Node, stripLinebreak bool) (strs []TaggedString) { + for ; node != nil; node = node.NextSibling { + strs = append(strs, parser.singleNodeToString(node, stripLinebreak)) + } + return +} + +var BlockTags = []string{"p", "h1", "h2", "h3", "h4", "h5", "h6", "ol", "ul", "pre", "blockquote", "div", "hr", "table"} + +func (parser *HTMLParser) isBlockTag(tag string) bool { + for _, blockTag := range BlockTags { + if tag == blockTag { + return true + } + } + return false +} + +func (parser *HTMLParser) nodeToTagAwareString(node *html.Node, stripLinebreak bool) string { + strs := parser.nodeToTaggedStrings(node, stripLinebreak) + var output strings.Builder + for _, str := range strs { + tstr := str.string + if parser.isBlockTag(str.tag) { + tstr = fmt.Sprintf("\n%s\n", tstr) + } + output.WriteString(tstr) + } + return strings.TrimSpace(output.String()) +} + +func (parser *HTMLParser) nodeToStrings(node *html.Node, stripLinebreak bool) (strs []string) { + for ; node != nil; node = node.NextSibling { + strs = append(strs, parser.singleNodeToString(node, stripLinebreak).string) + } + return +} + +func (parser *HTMLParser) nodeToString(node *html.Node, stripLinebreak bool) string { + return strings.Join(parser.nodeToStrings(node, stripLinebreak), "") +} + +func (parser *HTMLParser) Parse(htmlData string) string { + if parser.TabsToSpaces >= 0 { + htmlData = strings.Replace(htmlData, "\t", strings.Repeat(" ", parser.TabsToSpaces), -1) + } + node, _ := html.Parse(strings.NewReader(htmlData)) + return parser.nodeToTagAwareString(node, true) +} + +func HTMLToText(html string) string { + return (&HTMLParser{ + TabsToSpaces: 4, + Newline: "\n", + }).Parse(html) +} diff --git a/vendor/maunium.net/go/mautrix/format/markdown.go b/vendor/maunium.net/go/mautrix/format/markdown.go new file mode 100644 index 0000000..65abf56 --- /dev/null +++ b/vendor/maunium.net/go/mautrix/format/markdown.go @@ -0,0 +1,38 @@ +// Copyright 2018 Tulir Asokan +package format + +import ( + "gopkg.in/russross/blackfriday.v2" + "maunium.net/go/mautrix" + "strings" +) + +func RenderMarkdown(text string) mautrix.Content { + parser := blackfriday.New( + blackfriday.WithExtensions(blackfriday.NoIntraEmphasis | + blackfriday.Tables | + blackfriday.FencedCode | + blackfriday.Strikethrough | + blackfriday.SpaceHeadings | + blackfriday.DefinitionLists)) + ast := parser.Parse([]byte(text)) + + renderer := blackfriday.NewHTMLRenderer(blackfriday.HTMLRendererParameters{ + Flags: blackfriday.UseXHTML, + }) + + var buf strings.Builder + renderer.RenderHeader(&buf, ast) + ast.Walk(func(node *blackfriday.Node, entering bool) blackfriday.WalkStatus { + return renderer.RenderNode(&buf, node, entering) + }) + renderer.RenderFooter(&buf, ast) + htmlBody := buf.String() + + return mautrix.Content{ + FormattedBody: htmlBody, + Format: mautrix.FormatHTML, + MsgType: mautrix.MsgText, + Body: HTMLToText(htmlBody), + } +}