1 files changed, 89 insertions, 0 deletions
diff --git a/core/src/OC/query-string.js b/core/src/OC/query-string.js
new file mode 100644
index 00000000000..973412de579
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+++ b/core/src/OC/query-string.js
@@ -0,0 +1,89 @@
+/*
+ * @copyright 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @author 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Parses a URL query string into a JS map
+ * @param {string} queryString query string in the format param1=1234&param2=abcde&param3=xyz
+ * @return {Object.<string, string>} map containing key/values matching the URL parameters
+ */
+export const parse = queryString => {
+	let parts,
+		pos,
+		components,
+		result = {},
+		key,
+		value
+	if (!queryString) {
+		return null
+	}
+	pos = queryString.indexOf('?')
+	if (pos >= 0) {
+		queryString = queryString.substr(pos + 1)
+	}
+	parts = queryString.replace(/\+/g, '%20').split('&')
+	for (let i = 0; i < parts.length; i++) {
+		// split on first equal sign
+		var part = parts[i]
+		pos = part.indexOf('=')
+		if (pos >= 0) {
+			components = [
+				part.substr(0, pos),
+				part.substr(pos + 1)
+			]
+		} else {
+			// key only
+			components = [part]
+		}
+		if (!components.length) {
+			continue
+		}
+		key = decodeURIComponent(components[0])
+		if (!key) {
+			continue
+		}
+		// if equal sign was there, return string
+		if (components.length > 1) {
+			result[key] = decodeURIComponent(components[1])
+		} else {
+			// no equal sign => null value
+			result[key] = null
+		}
+	}
+	return result
+}
+
+/**
+ * Builds a URL query from a JS map.
+ * @param {Object.<string, string>} params map containing key/values matching the URL parameters
+ * @return {string} String containing a URL query (without question) mark
+ */
+export const build = params => {
+	if (!params) {
+		return ''
+	}
+	return $.map(params, function (value, key) {
+		var s = encodeURIComponent(key)
+		if (value !== null && typeof (value) !== 'undefined') {
+			s += '=' + encodeURIComponent(value)
+		}
+		return s
+	}).join('&')
+}