1 files changed, 61 insertions, 0 deletions
diff --git a/core/src/OCP/comments.js b/core/src/OCP/comments.js
new file mode 100644
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+++ b/core/src/OCP/comments.js
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+/**
+ * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import $ from 'jquery'
+
+/*
+ * Detects links:
+ * Either the http(s) protocol is given or two strings, basically limited to ascii with the last
+ * word being at least one digit long,
+ * followed by at least another character
+ *
+ * The downside: anything not ascii is excluded. Not sure how common it is in areas using different
+ * alphabets… the upside: fake domains with similar looking characters won't be formatted as links
+ *
+ * This is a copy of the backend regex in IURLGenerator, make sure to adjust both when changing
+ */
+const urlRegex = /(\s|^)(https?:\/\/)([-A-Z0-9+_.]+(?::[0-9]+)?(?:\/[-A-Z0-9+&@#%?=~_|!:,.;()]*)*)(\s|$)/ig
+
+/**
+ * @param {any} content -
+ */
+export function plainToRich(content) {
+	return this.formatLinksRich(content)
+}
+
+/**
+ * @param {any} content -
+ */
+export function richToPlain(content) {
+	return this.formatLinksPlain(content)
+}
+
+/**
+ * @param {any} content -
+ */
+export function formatLinksRich(content) {
+	return content.replace(urlRegex, function(_, leadingSpace, protocol, url, trailingSpace) {
+		let linkText = url
+		if (!protocol) {
+			protocol = 'https://'
+		} else if (protocol === 'http://') {
+			linkText = protocol + url
+		}
+
+		return leadingSpace + '<a class="external" target="_blank" rel="noopener noreferrer" href="' + protocol + url + '">' + linkText + '</a>' + trailingSpace
+	})
+}
+
+/**
+ * @param {any} content -
+ */
+export function formatLinksPlain(content) {
+	const $content = $('<div></div>').html(content)
+	$content.find('a').each(function() {
+		const $this = $(this)
+		$this.html($this.attr('href'))
+	})
+	return $content.html()
+}