Custom emoji (#4988)
* Custom emoji - In OStatus: `<link rel="emoji" name="coolcat" href="http://..." />` - In ActivityPub: `{ type: "Emoji", name: ":coolcat:", href: "http://..." }` - In REST API: Status object includes `emojis` array (`shortcode`, `url`) - Domain blocks with reject media stop emojis - Emoji file up to 50KB - Web UI handles custom emojis - Static pages render custom emojis as `<img />` tags Side effects: - Undo #4500 optimization, as I needed to modify it to restore shortcode handling in emojify() - Formatter#plaintext should now make sure stripped out line-breaks and paragraphs are replaced with newlines * Fix emoji at the start not being convertedpull/157/head
parent
c155d843f4
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81cec35dbf
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@ -3,28 +3,48 @@ import Trie from 'substring-trie';
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const trie = new Trie(Object.keys(unicodeMapping));
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const emojify = str => {
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let rtn = '';
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for (;;) {
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let match, i = 0;
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while (i < str.length && str[i] !== '<' && !(match = trie.search(str.slice(i)))) {
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i += str.codePointAt(i) < 65536 ? 1 : 2;
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}
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if (i === str.length)
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break;
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else if (str[i] === '<') {
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let tagend = str.indexOf('>', i + 1) + 1;
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if (!tagend)
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break;
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rtn += str.slice(0, tagend);
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str = str.slice(tagend);
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const emojify = (str, customEmojis = {}) => {
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// This walks through the string from start to end, ignoring any tags (<p>, <br>, etc.)
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// and replacing valid unicode strings
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// that _aren't_ within tags with an <img> version.
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// The goal is to be the same as an emojione.regUnicode replacement, but faster.
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let i = -1;
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let insideTag = false;
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let insideShortname = false;
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let shortnameStartIndex = -1;
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let match;
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while (++i < str.length) {
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const char = str.charAt(i);
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if (insideShortname && char === ':') {
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const shortname = str.substring(shortnameStartIndex, i + 1);
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if (shortname in customEmojis) {
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const replacement = `<img draggable="false" class="emojione" alt="${shortname}" title="${shortname}" src="${customEmojis[shortname]}" />`;
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str = str.substring(0, shortnameStartIndex) + replacement + str.substring(i + 1);
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i += (replacement.length - shortname.length - 1); // jump ahead the length we've added to the string
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} else {
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const [filename, shortCode] = unicodeMapping[match];
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rtn += str.slice(0, i) + `<img draggable="false" class="emojione" alt="${match}" title=":${shortCode}:" src="/emoji/${filename}.svg" />`;
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str = str.slice(i + match.length);
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i--;
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}
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insideShortname = false;
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} else if (insideTag && char === '>') {
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insideTag = false;
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} else if (char === '<') {
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insideTag = true;
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insideShortname = false;
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} else if (!insideTag && char === ':') {
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insideShortname = true;
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shortnameStartIndex = i;
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} else if (!insideTag && (match = trie.search(str.substring(i)))) {
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const unicodeStr = match;
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if (unicodeStr in unicodeMapping) {
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const [filename, shortCode] = unicodeMapping[unicodeStr];
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const alt = unicodeStr;
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const replacement = `<img draggable="false" class="emojione" alt="${alt}" title=":${shortCode}:" src="/emoji/${filename}.svg" />`;
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str = str.substring(0, i) + replacement + str.substring(i + unicodeStr.length);
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i += (replacement.length - unicodeStr.length); // jump ahead the length we've added to the string
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}
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}
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return rtn + str;
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}
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return str;
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};
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export default emojify;
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@ -58,9 +58,14 @@ const normalizeStatus = (state, status) => {
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}
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const searchContent = [status.spoiler_text, status.content].join(' ').replace(/<br \/>/g, '\n').replace(/<\/p><p>/g, '\n\n');
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const emojiMap = normalStatus.emojis.reduce((obj, emoji) => {
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obj[`:${emoji.shortcode}:`] = emoji.url;
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return obj;
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}, {});
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normalStatus.search_index = domParser.parseFromString(searchContent, 'text/html').documentElement.textContent;
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normalStatus.contentHtml = emojify(normalStatus.content);
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normalStatus.spoilerHtml = emojify(escapeTextContentForBrowser(normalStatus.spoiler_text || ''));
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normalStatus.contentHtml = emojify(normalStatus.content, emojiMap);
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normalStatus.spoilerHtml = emojify(escapeTextContentForBrowser(normalStatus.spoiler_text || ''), emojiMap);
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return state.update(status.id, ImmutableMap(), map => map.mergeDeep(fromJS(normalStatus)));
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};
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@ -61,6 +61,8 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
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process_hashtag tag, status
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when 'Mention'
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process_mention tag, status
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when 'Emoji'
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process_emoji tag, status
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end
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end
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end
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@ -79,6 +81,17 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
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account.mentions.create(status: status)
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end
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def process_emoji(tag, _status)
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shortcode = tag['name'].delete(':')
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emoji = CustomEmoji.find_by(shortcode: shortcode, domain: @account.domain)
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return if !emoji.nil? || skip_download?
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emoji = CustomEmoji.new(domain: @account.domain, shortcode: shortcode)
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emoji.image_remote_url = tag['href']
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emoji.save
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end
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def process_attachments(status)
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return unless @object['attachment'].is_a?(Array)
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@ -9,7 +9,7 @@ class Formatter
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include ActionView::Helpers::TextHelper
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def format(status)
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def format(status, options = {})
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if status.reblog?
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prepend_reblog = status.reblog.account.acct
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status = status.proper
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@ -19,7 +19,11 @@ class Formatter
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raw_content = status.text
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return reformat(raw_content) unless status.local?
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unless status.local?
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html = reformat(raw_content)
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html = encode_custom_emojis(html, status.emojis) if options[:custom_emojify]
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return html
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end
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linkable_accounts = status.mentions.map(&:account)
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linkable_accounts << status.account
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@ -27,6 +31,7 @@ class Formatter
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html = raw_content
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html = "RT @#{prepend_reblog} #{html}" if prepend_reblog
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html = encode_and_link_urls(html, linkable_accounts)
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html = encode_custom_emojis(html, status.emojis) if options[:custom_emojify]
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html = simple_format(html, {}, sanitize: false)
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html = html.delete("\n")
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@ -39,7 +44,9 @@ class Formatter
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def plaintext(status)
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return status.text if status.local?
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strip_tags(status.text)
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text = status.text.gsub(/(<br \/>|<br>|<\/p>)+/) { |match| "#{match}\n" }
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strip_tags(text)
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end
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def simplified_format(account)
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@ -76,6 +83,47 @@ class Formatter
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end
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end
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def encode_custom_emojis(html, emojis)
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return html if emojis.empty?
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emoji_map = emojis.map { |e| [e.shortcode, full_asset_url(e.image.url)] }.to_h
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i = -1
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inside_tag = false
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inside_shortname = false
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shortname_start_index = -1
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while i + 1 < html.size
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i += 1
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if inside_shortname && html[i] == ':'
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shortcode = html[shortname_start_index + 1..i - 1]
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emoji = emoji_map[shortcode]
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if emoji
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replacement = "<img draggable=\"false\" class=\"emojione\" alt=\":#{shortcode}:\" title=\":#{shortcode}:\" src=\"#{emoji}\" />"
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before_html = shortname_start_index.positive? ? html[0..shortname_start_index - 1] : ''
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html = before_html + replacement + html[i + 1..-1]
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i += replacement.size - (shortcode.size + 2) - 1
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else
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i -= 1
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end
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inside_shortname = false
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elsif inside_tag && html[i] == '>'
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inside_tag = false
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elsif html[i] == '<'
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inside_tag = true
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inside_shortname = false
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elsif !inside_tag && html[i] == ':'
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inside_shortname = true
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shortname_start_index = i
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end
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end
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html
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end
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def rewrite(text, entities)
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chars = text.to_s.to_char_a
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@ -42,6 +42,7 @@ class OStatus::Activity::Creation < OStatus::Activity::Base
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save_mentions(status)
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save_hashtags(status)
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save_media(status)
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save_emojis(status)
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end
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if thread? && status.thread.nil?
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@ -150,6 +151,25 @@ class OStatus::Activity::Creation < OStatus::Activity::Base
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end
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end
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def save_emojis(parent)
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do_not_download = DomainBlock.find_by(domain: parent.account.domain)&.reject_media?
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return if do_not_download
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@xml.xpath('./xmlns:link[@rel="emoji"]', xmlns: TagManager::XMLNS).each do |link|
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next unless link['href'] && link['name']
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shortcode = link['name'].delete(':')
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emoji = CustomEmoji.find_by(shortcode: shortcode, domain: parent.account.domain)
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next unless emoji.nil?
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emoji = CustomEmoji.new(shortcode: shortcode, domain: parent.account.domain)
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emoji.image_remote_url = link['href']
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emoji.save
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end
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end
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def account_from_href(href)
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url = Addressable::URI.parse(href).normalize
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@ -368,5 +368,9 @@ class OStatus::AtomSerializer
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end
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append_element(entry, 'mastodon:scope', status.visibility)
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status.emojis.each do |emoji|
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append_element(entry, 'link', nil, rel: :emoji, href: full_asset_url(emoji.image.url), name: emoji.shortcode)
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end
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end
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end
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@ -0,0 +1,38 @@
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# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: custom_emojis
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#
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# id :integer not null, primary key
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# shortcode :string default(""), not null
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# domain :string
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# image_file_name :string
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# image_content_type :string
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# image_file_size :integer
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# image_updated_at :datetime
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# created_at :datetime not null
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# updated_at :datetime not null
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#
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class CustomEmoji < ApplicationRecord
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SHORTCODE_RE_FRAGMENT = '[a-zA-Z0-9_]{2,}'
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SCAN_RE = /(?<=[^[:alnum:]:]|\n|^)
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:(#{SHORTCODE_RE_FRAGMENT}):
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(?=[^[:alnum:]:]|$)/x
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has_attached_file :image
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validates_attachment :image, content_type: { content_type: 'image/png' }, presence: true, size: { in: 0..50.kilobytes }
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validates :shortcode, uniqueness: { scope: :domain }, format: { with: /\A#{SHORTCODE_RE_FRAGMENT}\z/ }, length: { minimum: 2 }
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include Remotable
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class << self
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def from_text(text, domain)
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return [] if text.blank?
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shortcodes = text.scan(SCAN_RE).map(&:first)
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where(shortcode: shortcodes, domain: domain)
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end
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end
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end
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@ -131,6 +131,10 @@ class Status < ApplicationRecord
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!sensitive? && media_attachments.any?
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end
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def emojis
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CustomEmoji.from_text(text, account.domain)
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end
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after_create :store_uri, if: :local?
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before_validation :prepare_contents, if: :local?
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@ -57,7 +57,7 @@ class ActivityPub::NoteSerializer < ActiveModel::Serializer
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end
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def virtual_tags
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object.mentions + object.tags
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object.mentions + object.tags + object.emojis
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end
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def atom_uri
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"##{object.name}"
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end
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end
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class CustomEmojiSerializer < ActiveModel::Serializer
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include RoutingHelper
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attributes :type, :href, :name
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def type
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'Emoji'
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end
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def href
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full_asset_url(object.image.url)
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end
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def name
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":#{object.shortcode}:"
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end
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end
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end
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has_many :media_attachments, serializer: REST::MediaAttachmentSerializer
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has_many :mentions
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has_many :tags
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has_many :emojis
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def current_user?
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!current_user.nil?
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tag_url(object)
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end
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end
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class CustomEmojiSerializer < ActiveModel::Serializer
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include RoutingHelper
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attributes :shortcode, :url
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def url
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full_asset_url(object.image.url)
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end
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end
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end
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%p{ style: 'margin-bottom: 0' }<
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%span.p-summary> #{status.spoiler_text}
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%a.status__content__spoiler-link{ href: '#' }= t('statuses.show_more')
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.e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl_status?(status) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status)
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.e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl_status?(status) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status, custom_emojify: true)
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- if !status.media_attachments.empty?
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- if status.media_attachments.first.video?
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%p{ style: 'margin-bottom: 0' }<
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%span.p-summary> #{status.spoiler_text}
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%a.status__content__spoiler-link{ href: '#' }= t('statuses.show_more')
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.e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl_status?(status) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status)
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.e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl_status?(status) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status, custom_emojify: true)
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- unless status.media_attachments.empty?
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- if status.media_attachments.first.video?
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@ -0,0 +1,13 @@
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class CreateCustomEmojis < ActiveRecord::Migration[5.1]
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def change
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create_table :custom_emojis do |t|
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t.string :shortcode, null: false, default: ''
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t.string :domain
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t.attachment :image
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t.timestamps
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end
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add_index :custom_emojis, [:shortcode, :domain], unique: true
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end
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end
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14
db/schema.rb
14
db/schema.rb
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#
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# It's strongly recommended that you check this file into your version control system.
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ActiveRecord::Schema.define(version: 20170913000752) do
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ActiveRecord::Schema.define(version: 20170917153509) do
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# These are extensions that must be enabled in order to support this database
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enable_extension "plpgsql"
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@ -89,6 +89,18 @@ ActiveRecord::Schema.define(version: 20170913000752) do
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t.index ["uri"], name: "index_conversations_on_uri", unique: true
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end
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create_table "custom_emojis", force: :cascade do |t|
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t.string "shortcode", default: "", null: false
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t.string "domain"
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t.string "image_file_name"
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t.string "image_content_type"
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t.integer "image_file_size"
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t.datetime "image_updated_at"
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t.datetime "created_at", null: false
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t.datetime "updated_at", null: false
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t.index ["shortcode", "domain"], name: "index_custom_emojis_on_shortcode_and_domain", unique: true
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end
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create_table "domain_blocks", id: :serial, force: :cascade do |t|
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t.string "domain", default: "", null: false
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t.datetime "created_at", null: false
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@ -0,0 +1,5 @@
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Fabricator(:custom_emoji) do
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shortcode 'coolcat'
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domain nil
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image { File.open(Rails.root.join('spec', 'fixtures', 'files', 'emojo.png')) }
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end
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@ -17,6 +17,7 @@ RSpec.describe ActivityPub::Activity::Create do
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before do
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stub_request(:get, 'http://example.com/attachment.png').to_return(request_fixture('avatar.txt'))
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stub_request(:get, 'http://example.com/emoji.png').to_return(body: attachment_fixture('emojo.png'))
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end
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describe '#perform' do
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@ -217,5 +218,29 @@ RSpec.describe ActivityPub::Activity::Create do
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expect(status.tags.map(&:name)).to include('test')
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end
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end
|
||||
|
||||
context 'with emojis' do
|
||||
let(:object_json) do
|
||||
{
|
||||
id: 'bar',
|
||||
type: 'Note',
|
||||
content: 'Lorem ipsum :tinking:',
|
||||
tag: [
|
||||
{
|
||||
type: 'Emoji',
|
||||
href: 'http://example.com/emoji.png',
|
||||
name: 'tinking',
|
||||
},
|
||||
],
|
||||
}
|
||||
end
|
||||
|
||||
it 'creates status' do
|
||||
status = sender.statuses.first
|
||||
|
||||
expect(status).to_not be_nil
|
||||
expect(status.emojis.map(&:shortcode)).to include('tinking')
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
@ -223,6 +223,45 @@ RSpec.describe Formatter do
|
|||
|
||||
include_examples 'encode and link URLs'
|
||||
end
|
||||
|
||||
context 'with custom_emojify option' do
|
||||
let!(:emoji) { Fabricate(:custom_emoji) }
|
||||
let(:status) { Fabricate(:status, account: local_account, text: text) }
|
||||
|
||||
subject { Formatter.instance.format(status, custom_emojify: true) }
|
||||
|
||||
context 'with emoji at the start' do
|
||||
let(:text) { ':coolcat: Beep boop' }
|
||||
|
||||
it 'converts shortcode to image tag' do
|
||||
is_expected.to match(/<p><img draggable="false" class="emojione" alt=":coolcat:"/)
|
||||
end
|
||||
end
|
||||
|
||||
context 'with emoji in the middle' do
|
||||
let(:text) { 'Beep :coolcat: boop' }
|
||||
|
||||
it 'converts shortcode to image tag' do
|
||||
is_expected.to match(/Beep <img draggable="false" class="emojione" alt=":coolcat:"/)
|
||||
end
|
||||
end
|
||||
|
||||
context 'with concatenated emoji' do
|
||||
let(:text) { ':coolcat::coolcat:' }
|
||||
|
||||
it 'does not touch the shortcodes' do
|
||||
is_expected.to match(/:coolcat::coolcat:/)
|
||||
end
|
||||
end
|
||||
|
||||
context 'with emoji at the end' do
|
||||
let(:text) { 'Beep boop :coolcat:' }
|
||||
|
||||
it 'converts shortcode to image tag' do
|
||||
is_expected.to match(/boop <img draggable="false" class="emojione" alt=":coolcat:"/)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
context 'with remote status' do
|
||||
|
@ -231,6 +270,45 @@ RSpec.describe Formatter do
|
|||
it 'reformats' do
|
||||
is_expected.to eq 'Beep boop'
|
||||
end
|
||||
|
||||
context 'with custom_emojify option' do
|
||||
let!(:emoji) { Fabricate(:custom_emoji, domain: remote_account.domain) }
|
||||
let(:status) { Fabricate(:status, account: remote_account, text: text) }
|
||||
|
||||
subject { Formatter.instance.format(status, custom_emojify: true) }
|
||||
|
||||
context 'with emoji at the start' do
|
||||
let(:text) { '<p>:coolcat: Beep boop<br />' }
|
||||
|
||||
it 'converts shortcode to image tag' do
|
||||
is_expected.to match(/<p><img draggable="false" class="emojione" alt=":coolcat:"/)
|
||||
end
|
||||
end
|
||||
|
||||
context 'with emoji in the middle' do
|
||||
let(:text) { '<p>Beep :coolcat: boop</p>' }
|
||||
|
||||
it 'converts shortcode to image tag' do
|
||||
is_expected.to match(/Beep <img draggable="false" class="emojione" alt=":coolcat:"/)
|
||||
end
|
||||
end
|
||||
|
||||
context 'with concatenated emoji' do
|
||||
let(:text) { '<p>:coolcat::coolcat:</p>' }
|
||||
|
||||
it 'does not touch the shortcodes' do
|
||||
is_expected.to match(/<p>:coolcat::coolcat:<\/p>/)
|
||||
end
|
||||
end
|
||||
|
||||
context 'with emoji at the end' do
|
||||
let(:text) { '<p>Beep boop<br />:coolcat:</p>' }
|
||||
|
||||
it 'converts shortcode to image tag' do
|
||||
is_expected.to match(/<br><img draggable="false" class="emojione" alt=":coolcat:"/)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
|
|
|
@ -100,8 +100,20 @@ RSpec.describe OStatus::AtomSerializer do
|
|||
node[:rel] == 'mentioned' &&
|
||||
node['ostatus:object-type'] == TagManager::TYPES[:person]
|
||||
end
|
||||
|
||||
expect(mentioned[:href]).to eq 'https://cb6e6126.ngrok.io/users/username'
|
||||
end
|
||||
|
||||
it 'appends link elements for emojis' do
|
||||
Fabricate(:custom_emoji)
|
||||
|
||||
status = Fabricate(:status, text: ':coolcat:')
|
||||
element = serialize(status)
|
||||
emoji = element.nodes.find { |node| node.name == 'link' && node[:rel] == 'emoji' }
|
||||
|
||||
expect(emoji[:name]).to eq 'coolcat'
|
||||
expect(emoji[:href]).to_not be_blank
|
||||
end
|
||||
end
|
||||
|
||||
describe 'render' do
|
||||
|
|
|
@ -0,0 +1,25 @@
|
|||
require 'rails_helper'
|
||||
|
||||
RSpec.describe CustomEmoji, type: :model do
|
||||
describe '.from_text' do
|
||||
let!(:emojo) { Fabricate(:custom_emoji) }
|
||||
|
||||
subject { described_class.from_text(text, nil) }
|
||||
|
||||
context 'with plain text' do
|
||||
let(:text) { 'Hello :coolcat:' }
|
||||
|
||||
it 'returns records used via shortcodes in text' do
|
||||
is_expected.to include(emojo)
|
||||
end
|
||||
end
|
||||
|
||||
context 'with html' do
|
||||
let(:text) { '<p>Hello :coolcat:</p>' }
|
||||
|
||||
it 'returns records used via shortcodes in text' do
|
||||
is_expected.to include(emojo)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
Loading…
Reference in New Issue