68 lines
2.0 KiB
Go
68 lines
2.0 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package text
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import (
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"bytes"
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"html"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/regexes"
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)
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// Emojify replaces shortcodes in `inputText` with the emoji in `emojis`.
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//
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// Callers should ensure that inputText and resulting text are escaped
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// appropriately depending on what they're used for.
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func Emojify(emojis []apimodel.Emoji, inputText string) string {
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emojisMap := make(map[string]apimodel.Emoji, len(emojis))
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for _, emoji := range emojis {
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shortcode := ":" + emoji.Shortcode + ":"
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emojisMap[shortcode] = emoji
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}
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return regexes.ReplaceAllStringFunc(
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regexes.EmojiFinder,
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inputText,
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func(shortcode string, buf *bytes.Buffer) string {
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// Look for emoji according to this shortcode
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emoji, ok := emojisMap[shortcode]
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if !ok {
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return shortcode
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}
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// Escape raw emoji content
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safeURL := html.EscapeString(emoji.URL)
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safeCode := html.EscapeString(emoji.Shortcode)
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// Write HTML emoji repr to buffer
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buf.WriteString(`<img src="`)
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buf.WriteString(safeURL)
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buf.WriteString(`" title=":`)
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buf.WriteString(safeCode)
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buf.WriteString(`:" alt=":`)
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buf.WriteString(safeCode)
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buf.WriteString(`:" class="emoji"/>`)
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return buf.String()
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},
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)
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}
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