mirror of https://github.com/zulip/zulip.git
59 lines
2.5 KiB
JavaScript
59 lines
2.5 KiB
JavaScript
exports.words = page_params.alert_words;
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exports.set_words = function (value) {
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exports.words = value;
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};
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// Delete the `page_params.alert_words` since we are its sole user.
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delete page_params.alert_words;
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// escape_user_regex taken from jquery-ui/autocomplete.js,
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// licensed under MIT license.
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function escape_user_regex(value) {
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return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&");
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}
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exports.process_message = function (message) {
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// Parsing for alert words is expensive, so we rely on the host
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// to tell us there any alert words to even look for.
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if (!message.alerted) {
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return;
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}
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for (const word of exports.words) {
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const clean = escape_user_regex(word);
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const before_punctuation = '\\s|^|>|[\\(\\".,\';\\[]';
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const after_punctuation = '\\s|$|<|[\\)\\"\\?!:.,\';\\]!]';
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const regex = new RegExp('(' + before_punctuation + ')' +
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'(' + clean + ')' +
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'(' + after_punctuation + ')', 'ig');
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message.content = message.content.replace(regex, function (match, before, word,
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after, offset, content) {
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// Logic for ensuring that we don't muck up rendered HTML.
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const pre_match = content.substring(0, offset);
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// We want to find the position of the `<` and `>` only in the
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// match and the string before it. So, don't include the last
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// character of match in `check_string`. This covers the corner
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// case when there is an alert word just before `<` or `>`.
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const check_string = pre_match + match.substring(0, match.length - 1);
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const in_tag = check_string.lastIndexOf('<') > check_string.lastIndexOf('>');
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// Matched word is inside a HTML tag so don't perform any highlighting.
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if (in_tag === true) {
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return before + word + after;
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}
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return before + "<span class='alert-word'>" + word + "</span>" + after;
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});
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}
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};
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exports.notifies = function (message) {
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// We exclude ourselves from notifications when we type one of our own
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// alert words into a message, just because that can be annoying for
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// certain types of workflows where everybody on your team, including
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// yourself, sets up an alert word to effectively mention the team.
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return !people.is_current_user(message.sender_email) && message.alerted;
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};
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window.alert_words = exports;
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