diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a0318f9a6edb2805a3a975b39b6253849cf78b5..fde6b8fb755fc8f8818bd1d7afd8474c18873ebf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
### Added (for new features, dependecies etc.)
+* `ext_trigger_crawler_form` module which generates a form for triggering the
+ crawler. See module docstring for more info.
* Support for deeply nested selectors in SELECT queries.
* edit_mode supports reference properties when inserting/updating properties
(See [#83](https://gitlab.com/caosdb/caosdb-webui/-/issues/83) and
diff --git a/build.properties.d/00_default.properties b/build.properties.d/00_default.properties
index 6185725aefd266b45ef5024bd3e47a78801fef1f..da4c8d0035970069b6762206477ae3b250b521c7 100644
--- a/build.properties.d/00_default.properties
+++ b/build.properties.d/00_default.properties
@@ -43,6 +43,7 @@
##############################################################################
BUILD_MODULE_EXT_PREVIEW=ENABLED
BUILD_MODULE_EXT_RESOLVE_REFERENCES=ENABLED
+BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM=DISABLED
##############################################################################
# Navbar properties
@@ -76,4 +77,7 @@ BUILD_FOOTER_CUSTOM_ELEMENT_TWO=
# BUILD_FOOTER_CUSTOM_ELEMENT_TWO=$(cat footer_element_2.html)
BUILD_CUSTOM_IMPRINT='<p> Put an imprint note here </p>'
-
+##############################################################################
+# ext_trigger_crawler_form properties
+##############################################################################
+BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM_TOOLBOX="Tools"
diff --git a/src/core/js/ext_trigger_crawler_form.js b/src/core/js/ext_trigger_crawler_form.js
new file mode 100644
index 0000000000000000000000000000000000000000..94ea6feb672cc3a2be8c87cb6bd6f5c8a5087d3f
--- /dev/null
+++ b/src/core/js/ext_trigger_crawler_form.js
@@ -0,0 +1,132 @@
+/*
+ * ** header v3.0
+ * This file is a part of the CaosDB Project.
+ *
+ * Copyright (C) 2019 IndiScale GmbH <info@indiscale.com>
+ * Copyright (C) 2019 Timm Fitschen <t.fitschen@indiscale.com>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ *
+ * ** end header
+ */
+
+'use strict';
+
+/**
+ * @module ext_trigger_crawler_form
+ * @version 0.1
+ *
+ * Adds a button to a configurable navbar toolbox which opens a form for
+ * triggering the crawler as a server-side scripting job.
+ *
+ * The form has two fields. The text field `Path` sets the directory tree which
+ * is searched by the crawler. The checkbox `Suppress Warnings` can be checked
+ * to suppress the crawlers warnings.
+ *
+ * The module has to be enabled via the
+ * `BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM=ENABLED` build variable.
+ *
+ * The toolbox where the button is added can be configured via the build
+ * variable `BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM_TOOLBOX`. The default is
+ * `Tools`.
+ */
+var ext_trigger_crawler_form = function () {
+
+ var init = function (toolbox) {
+ const _toolbox = toolbox || "${BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM_TOOLBOX}";
+
+ const script = "crawl.py"
+ const button_name = "Trigger Crawler";
+ const title = "The LinkAhead-Crawler will run over the filesystem and make necessary updates.";
+
+ const crawler_form = make_scripting_caller_form(
+ script, button_name);
+ const modal = make_form_modal(crawler_form);
+
+
+ navbar.add_tool(button_name, _toolbox, {
+ title: title,
+ callback: () => {
+ $(modal).modal("toggle");
+ }
+ });
+ }
+
+ /**
+ * Wrap the form into a Bootstrap modal.
+ */
+ var make_form_modal = function (form) {
+ const title = "Trigger the Crawler";
+ const modal = $(`
+ <div class="modal fade" tabindex="-1" role="dialog">
+ <div class="modal-dialog" role="document">
+ <div class="modal-content">
+ <div class="modal-header">
+ <button type="button"
+ class="close"
+ data-dismiss="modal"
+ aria-label="Close">
+ <span aria-hidden="true">×</span>
+ </button>
+ <h4 class="modal-title">${title}</h4>
+ </div>
+ <div class="modal-body">
+ </div>
+ </div>
+ </div>`);
+ modal.find(".modal-body").append(form);
+ return modal[0];
+ }
+
+ /**
+ * Create the trigger crawler form.
+ */
+ var make_scripting_caller_form = function (script, button_name) {
+ const path_field = form_elements.make_text_input({
+ name: "-p1",
+ value: "/",
+ label: "Path"
+ });
+ const warning_checkbox = form_elements.make_checkbox_input({
+ name: "-Osuppress",
+ label: "Suppress Warnings"
+ });
+ $(warning_checkbox).find("input").attr("value", "TRUE");
+
+ const scripting_caller = $(`
+ <form method="POST" action="/scripting">
+ <input type="hidden" name="call" value="${script}"/>
+ <input type="hidden" name="-p0" value=""/>
+ <div class="form-group">
+ <input type="submit"
+ class="form-control btn btn-primary" value="${button_name}"/>
+ </div>
+ </form>`);
+
+ scripting_caller.prepend(warning_checkbox).prepend(path_field);
+
+ return scripting_caller[0];
+ }
+
+ return {
+ init: init,
+ };
+
+}();
+
+$(document).ready(function () {
+ if ("${BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM}" === "ENABLED") {
+ caosdb_modules.register(ext_trigger_crawler_form);
+ }
+});
diff --git a/src/core/xsl/main.xsl b/src/core/xsl/main.xsl
index f4a128f63f52488657b32e8ff03043c276d4aaa3..52e5b4249fa85479efc69bd7d8c63de80fbb2631 100644
--- a/src/core/xsl/main.xsl
+++ b/src/core/xsl/main.xsl
@@ -240,6 +240,11 @@
<xsl:value-of select="concat($basepath,'webinterface/${BUILD_NUMBER}/js/ext_revisions.js')"/>
</xsl:attribute>
</xsl:element>
+ <xsl:element name="script">
+ <xsl:attribute name="src">
+ <xsl:value-of select="concat($basepath,'webinterface/${BUILD_NUMBER}/js/ext_trigger_crawler_form.js')"/>
+ </xsl:attribute>
+ </xsl:element>
<!--JS_EXTENSIONS-->
</xsl:template>
<xsl:template name="caosdb-data-container">
diff --git a/test/core/index.html b/test/core/index.html
index 0d97a415334fd441319eec7e4db262c34d64ef07..ab65f0d9546c671ad55485a187154d7a165f3e5c 100644
--- a/test/core/index.html
+++ b/test/core/index.html
@@ -67,6 +67,7 @@
<script src="js/ext_bottom_line.js"></script>
<script src="js/ext_revisions.js"></script>
<script src="js/autocomplete.js"></script>
+ <script src="js/ext_trigger_crawler_form.js"></script>
<!--EXTENSIONS-->
<script src="js/modules/webcaosdb.js.js"></script>
<script src="js/modules/caosdb.js.js"></script>
@@ -85,5 +86,6 @@
<script src="js/modules/ext_bottom_line.js.js"></script>
<script src="js/modules/ext_revisions.js.js"></script>
<script src="js/modules/autocomplete.js.js"></script>
+ <script src="js/modules/ext_trigger_crawler_form.js.js"></script>
</body>
</html>
diff --git a/test/core/js/modules/ext_trigger_crawler_form.js.js b/test/core/js/modules/ext_trigger_crawler_form.js.js
new file mode 100644
index 0000000000000000000000000000000000000000..e2a4b0c8a494e43234547de4740ea62dde77beac
--- /dev/null
+++ b/test/core/js/modules/ext_trigger_crawler_form.js.js
@@ -0,0 +1,55 @@
+/*
+ * ** header v3.0
+ * This file is a part of the CaosDB Project.
+ *
+ * Copyright (C) 2020 IndiScale GmbH <info@indiscale.com>
+ * Copyright (C) 2020 Timm Fitschen <t.fitschen@indiscale.com>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ *
+ * ** end header
+ */
+
+'use strict';
+
+QUnit.module("ext_trigger_crawler_form", {
+ before: () => {
+ $(document.body).append('<div id="top-navbar"><ul class="caosdb-navbar"/></div>');
+ },
+ beforeEach: () => {
+ $(".caosdb-f-navbar-toolbox").remove();
+ },
+ after: () => {
+ $("#top-navbar").remove();
+ },
+});
+
+QUnit.test("test build variables and availability", function(assert) {
+ assert.ok(ext_trigger_crawler_form, "availble");
+ assert.equal("${BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM}", "DISABLED", "BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM disabled by default.");
+ assert.equal("${BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM_TOOLBOX}", "Tools", "BUILD_MODULE_EXT_TRIGGER_CRAWLER_FORM_TOOLBOX defaults to Tools");
+});
+
+QUnit.test("test init", function(assert) {
+ var tools = navbar.get_toolbox("Tools");
+
+ assert.equal($(tools).length, 1);
+ assert.equal($(tools).find("button").length, 0);
+ ext_trigger_crawler_form.init()
+ tools = navbar.get_toolbox("Tools");
+ assert.equal($(tools).find("button").length, 1);
+
+});
+
+