Initial commit

.eslintrc.js

@@ -0,0 +1,5 @@
+module.exports = {
+	extends: [
+		'@nextcloud',
+	]
+}

.gitignore

@@ -0,0 +1,3 @@
+/js
+/node_modules
+/vendor

.travis.yml

@@ -0,0 +1,64 @@
+sudo: false
+dist: trusty
+language: php
+php:
+    - 5.6
+    - 7
+    - 7.1
+env:
+    global:
+        - CORE_BRANCH=stable12
+    matrix:
+        - DB=pgsql
+
+matrix:
+    allow_failures:
+        - env: DB=pgsql CORE_BRANCH=master
+    include:
+        - php: 5.6
+          env: DB=sqlite
+        - php: 5.6
+          env: DB=mysql
+        - php: 5.6
+          env: DB=pgsql CORE_BRANCH=master
+    fast_finish: true
+
+
+before_install:
+    # enable a display for running JavaScript tests
+    - export DISPLAY=:99.0
+    - sh -e /etc/init.d/xvfb start
+    - nvm install 8
+    - npm install -g npm@latest
+    - make
+    - make appstore
+    # install core
+    - cd ../
+    - git clone https://github.com/nextcloud/server.git --recursive --depth 1 -b $CORE_BRANCH nextcloud
+    - mv "$TRAVIS_BUILD_DIR" nextcloud/apps/xwiki
+
+before_script:
+    - if [[ "$DB" == 'pgsql' ]]; then createuser -U travis -s oc_autotest; fi
+    - if [[ "$DB" == 'mysql' ]]; then mysql -u root -e 'create database oc_autotest;'; fi
+    - if [[ "$DB" == 'mysql' ]]; then mysql -u root -e "CREATE USER 'oc_autotest'@'localhost' IDENTIFIED BY '';"; fi
+    - if [[ "$DB" == 'mysql' ]]; then mysql -u root -e "grant all on oc_autotest.* to 'oc_autotest'@'localhost';"; fi
+    - cd nextcloud
+    - mkdir data
+    - ./occ maintenance:install --database-name oc_autotest --database-user oc_autotest --admin-user admin --admin-pass admin --database $DB --database-pass=''
+    - ./occ app:enable xwiki
+    - php -S localhost:8080 &
+    - cd apps/xwiki
+
+script:
+    - make test
+
+after_failure:
+    - cat ../../data/nextcloud.log
+
+addons:
+    firefox: 'latest'
+    mariadb: '10.1'
+
+services:
+  - postgresql
+  - mariadb

COPYING

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
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+
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+
+  Developers that use our General Public Licenses protect your rights
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+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.

Makefile

@@ -0,0 +1,162 @@
+# This file is licensed under the Affero General Public License version 3 or
+# later. See the COPYING file.
+# @author Bernhard Posselt <dev@bernhard-posselt.com>
+# @copyright Bernhard Posselt 2016
+
+# Generic Makefile for building and packaging a Nextcloud app which uses npm and
+# Composer.
+#
+# Dependencies:
+# * make
+# * which
+# * curl: used if phpunit and composer are not installed to fetch them from the web
+# * tar: for building the archive
+# * npm: for building and testing everything JS
+#
+# If no composer.json is in the app root directory, the Composer step
+# will be skipped. The same goes for the package.json which can be located in
+# the app root or the js/ directory.
+#
+# The npm command by launches the npm build script:
+#
+#    npm run build
+#
+# The npm test command launches the npm test script:
+#
+#    npm run test
+#
+# The idea behind this is to be completely testing and build tool agnostic. All
+# build tools and additional package managers should be installed locally in
+# your project, since this won't pollute people's global namespace.
+#
+# The following npm scripts in your package.json install and update the bower
+# and npm dependencies and use gulp as build system (notice how everything is
+# run from the node_modules folder):
+#
+#    "scripts": {
+#        "test": "node node_modules/gulp-cli/bin/gulp.js karma",
+#        "prebuild": "npm install && node_modules/bower/bin/bower install && node_modules/bower/bin/bower update",
+#        "build": "node node_modules/gulp-cli/bin/gulp.js"
+#    },
+
+app_name=$(notdir $(CURDIR))
+build_tools_directory=$(CURDIR)/build/tools
+source_build_directory=$(CURDIR)/build/artifacts/source
+source_package_name=$(source_build_directory)/$(app_name)
+appstore_build_directory=$(CURDIR)/build/artifacts/appstore
+appstore_package_name=$(appstore_build_directory)/$(app_name)
+npm=$(shell which npm 2> /dev/null)
+composer=$(shell which composer 2> /dev/null)
+
+all: build
+
+# Fetches the PHP and JS dependencies and compiles the JS. If no composer.json
+# is present, the composer step is skipped, if no package.json or js/package.json
+# is present, the npm step is skipped
+.PHONY: build
+build:
+ifneq (,$(wildcard $(CURDIR)/composer.json))
+	make composer
+endif
+ifneq (,$(wildcard $(CURDIR)/package.json))
+	make npm
+endif
+ifneq (,$(wildcard $(CURDIR)/js/package.json))
+	make npm
+endif
+
+# Installs and updates the composer dependencies. If composer is not installed
+# a copy is fetched from the web
+.PHONY: composer
+composer:
+ifeq (, $(composer))
+	@echo "No composer command available, downloading a copy from the web"
+	mkdir -p $(build_tools_directory)
+	curl -sS https://getcomposer.org/installer | php
+	mv composer.phar $(build_tools_directory)
+	php $(build_tools_directory)/composer.phar install --prefer-dist
+else
+	composer install --prefer-dist
+endif
+
+# Installs npm dependencies
+.PHONY: npm
+npm:
+ifeq (,$(wildcard $(CURDIR)/package.json))
+	cd js && $(npm) run build
+else
+	npm run build
+endif
+
+# Removes the appstore build
+.PHONY: clean
+clean:
+	rm -rf ./build
+
+# Same as clean but also removes dependencies installed by composer, bower and
+# npm
+.PHONY: distclean
+distclean: clean
+	rm -rf vendor
+	rm -rf node_modules
+	rm -rf js/vendor
+	rm -rf js/node_modules
+
+# Builds the source and appstore package
+.PHONY: dist
+dist:
+	make source
+	make appstore
+
+# Builds the source package
+.PHONY: source
+source:
+	rm -rf $(source_build_directory)
+	mkdir -p $(source_build_directory)
+	tar cvzf $(source_package_name).tar.gz ../$(app_name) \
+	--exclude-vcs \
+	--exclude="../$(app_name)/build" \
+	--exclude="../$(app_name)/js/node_modules" \
+	--exclude="../$(app_name)/vendor" \
+	--exclude="../$(app_name)/node_modules" \
+	--exclude="../$(app_name)/*.log" \
+	--exclude="../$(app_name)/js/*.log" \
+
+# Builds the source package for the app store, ignores php and js tests
+.PHONY: appstore
+appstore:
+	rm -rf $(appstore_build_directory)
+	mkdir -p $(appstore_build_directory)
+	tar cvzf $(appstore_package_name).tar.gz \
+	--exclude-vcs \
+	--exclude="../$(app_name)/build" \
+	--exclude="../$(app_name)/tests" \
+	--exclude="../$(app_name)/Makefile" \
+	--exclude="../$(app_name)/*.log" \
+	--exclude="../$(app_name)/phpunit*xml" \
+	--exclude="../$(app_name)/composer.*" \
+	--exclude="../$(app_name)/vendor" \
+	--exclude="../$(app_name)/node_modules" \
+	--exclude="../$(app_name)/js/node_modules" \
+	--exclude="../$(app_name)/js/tests" \
+	--exclude="../$(app_name)/js/test" \
+	--exclude="../$(app_name)/js/*.log" \
+	--exclude="../$(app_name)/js/package.json" \
+	--exclude="../$(app_name)/js/bower.json" \
+	--exclude="../$(app_name)/js/karma.*" \
+	--exclude="../$(app_name)/js/protractor.*" \
+	--exclude="../$(app_name)/package.json" \
+	--exclude="../$(app_name)/package-lock.json" \
+	--exclude="../$(app_name)/bower.json" \
+	--exclude="../$(app_name)/*.config.js" \
+	--exclude="../$(app_name)/karma.*" \
+	--exclude="../$(app_name)/protractor\.*" \
+	--exclude="../$(app_name)/doc" \
+	--exclude="../$(app_name)/.*" \
+	--exclude="../$(app_name)/js/.*" \
+	../$(app_name)
+
+.PHONY: test
+test: composer
+	$(CURDIR)/vendor/phpunit/phpunit/phpunit -c phpunit.xml
+	$(CURDIR)/vendor/phpunit/phpunit/phpunit -c phpunit.integration.xml

README.md

@@ -0,0 +1,77 @@
+# XWiki Application for Nextcloud
+
+## Introduction
+
+This application integrates Nextcloud with XWiki. It allows users to search
+and display XWiki content from Nextcloud.
+
+Administrators add wikis that can be used from Nextcloud, and users
+login to these wikis from Nextcloud so they can see content only they can
+access.
+
+The XWiki extension [Nextcloud Application](https://github.com/xwiki-contrib/application-nextcloud) should be installed on these wikis.
+This will allow users to login to these instances from Nextcloud. If the
+extension is not installed, users will only be able to search and display
+contents available to guests.
+
+### Search
+
+![Search XWiki Content from Nextcloud](doc/search.png)
+
+### Browsing XWiki Content (experimental)
+
+![Browsing XWiki Content from Nextcloud](doc/browse.mp4)
+
+## Installation (for developers)
+
+Place this app in **nextcloud/apps/**
+
+## Building the app
+
+The app can be built by using the provided Makefile by running:
+
+    make
+
+This requires the following things to be present:
+* make
+* which
+* tar: for building the archive
+* curl: used if phpunit and composer are not installed to fetch them from the web
+* npm: for building and testing everything JS, only required if a package.json is placed inside the **js/** folder
+
+The make command will install or update Composer dependencies if a composer.json is present and also **npm run build** if a package.json is present in the **js/** folder. The npm **build** script should use local paths for build systems and package managers, so people that simply want to build the app won't need to install npm libraries globally, e.g.:
+
+**package.json**:
+```json
+"scripts": {
+    "test": "node node_modules/gulp-cli/bin/gulp.js karma",
+    "prebuild": "npm install && node_modules/bower/bin/bower install && node_modules/bower/bin/bower update",
+    "build": "node node_modules/gulp-cli/bin/gulp.js"
+}
+```
+
+
+## Publish to App Store
+
+First get an account for the [App Store](http://apps.nextcloud.com/) then run:
+
+    make && make appstore
+
+The archive is located in build/artifacts/appstore and can then be uploaded to the App Store.
+
+## Running tests
+You can use the provided Makefile to run all tests by using:
+
+    make test
+
+This will run the PHP unit and integration tests and if a package.json is present in the **js/** folder will execute **npm run test**
+
+Of course you can also install [PHPUnit](http://phpunit.de/getting-started.html) and use the configurations directly:
+
+    phpunit -c phpunit.xml
+
+or:
+
+    phpunit -c phpunit.integration.xml
+
+for integration tests

appinfo/info.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+<info xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"
+	  xsi:noNamespaceSchemaLocation="https://apps.nextcloud.com/schema/apps/info.xsd">
+	<id>xwiki</id>
+	<name>XWiki</name>
+	<summary>XWiki Integration for Nextcloud</summary>
+	<description><![CDATA[XWiki is a light and powerful development platform that allows you to customize the wiki to your specific needs. Using structured data and in-page-scripting you can create macros and applications that allow you to extend the capabilities of your wiki.]]></description>
+	<version>0.0.1</version>
+	<licence>agpl</licence>
+	<author mail="raphael.jakse@xwiki.com" homepage="https://xwiki.org">Raphaël Jakse</author>
+	<category>integration</category>
+	<bugs>https://jira.xwiki.org/</bugs>
+	<dependencies>
+		<php min-version="8.0"/>
+		<nextcloud min-version="25" max-version="26"/>
+	</dependencies>
+	<navigations>
+		<navigation>
+			<name>XWiki</name>
+			<route>xwiki.page.index</route>
+		</navigation>
+	</navigations>
+	<settings>
+		<admin>OCA\Xwiki\Settings\Admin</admin>
+		<admin-section>OCA\Xwiki\Settings\AdminSection</admin-section>
+		<personal>OCA\Xwiki\Settings\User</personal>
+		<personal-section>OCA\Xwiki\Settings\UserSection</personal-section>
+	</settings>
+</info>

appinfo/routes.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace OCA\Xwiki\AppInfo;
+
+return [
+	'routes' => [
+		['name' => 'page#index', 'url' => '/', 'verb' => 'GET'],
+		['name' => 'page#savePDF', 'url' => '/savePDF', 'verb' => 'POST'],
+		['name' => 'settings#deleteToken', 'url' => 'settings/deleteToken', 'verb' => 'POST'],
+		['name' => 'settings#addToken', 'url' => 'settings/addToken', 'verb' => 'POST'],
+		['name' => 'settings#requestToken', 'url' => 'settings/requestToken', 'verb' => 'GET'],
+		['name' => 'settings#oidcRedirect', 'url' => 'settings/oidcRedirect', 'verb' => 'GET'],
+		['name' => 'settings#addInstance', 'url' => 'settings/addInstance', 'verb' => 'POST'],
+		['name' => 'settings#setUserValue', 'url' => 'settings/setUserValue', 'verb' => 'POST'],
+		['name' => 'settings#replaceInstance', 'url' => 'settings/replaceInstance', 'verb' => 'POST'],
+		['name' => 'settings#deleteInstance', 'url' => 'settings/deleteInstance', 'verb' => 'POST'],
+		['name' => 'settings#pingInstance', 'url' => 'settings/pingInstance', 'verb' => 'GET'],
+	]
+];

babel.config.js

@@ -0,0 +1,9 @@
+const babelConfig = require('@nextcloud/babel-config')
+
+for (const preset of babelConfig.presets) {
+	if (preset[0] === '@babel/preset-env') {
+		preset[1].exclude = ['transform-regenerator', 'transform-async-to-generator', 'transform-for-of']
+	}
+}
+babelConfig.presets.push("@babel/preset-typescript");
+module.exports = babelConfig

composer.json

@@ -0,0 +1,15 @@
+{
+    "name": "nextcloud/xwiki",
+    "description": "XWiki Integration for Nextcloud",
+    "type": "project",
+    "license": "AGPL",
+    "authors": [
+        {
+            "name": "Raphaël Jakse"
+        }
+    ],
+    "require": {},
+    "require-dev": {
+        "phpunit/phpunit": "^9"
+    }
+}

css/style.css

@@ -0,0 +1,260 @@
+#xwiki-admin-instance-list {
+	margin-bottom: 1ex;
+}
+
+#xwiki-admin-instance-list input[type=text] {
+	width: 30em;
+	max-width: 100%;
+}
+
+#xwiki-admin-instance-list li {
+	padding-bottom: 1ex;
+	border-bottom: 1px solid gray;
+	margin-bottom: 1ex;
+}
+
+#xwiki-admin-instance-list li:not(.xwiki-admin-changed) .xwiki-admin-save-instance-btn {
+	display: none;
+}
+
+button.xwiki-admin-remove-instance-btn {
+	border: 0px;
+	background-color: transparent;
+	vertical-align: middle;
+}
+
+.xwiki-span-icon {
+	display: inline-block;
+	vertical-align: middle;
+	padding-right: 1ex;
+}
+
+.ping-successful { color: var(--color-success); }
+.ping-failure, .xwiki-error { color: var(--color-error); }
+
+#xwiki-nav .icon, #xwiki-actions .icon {
+	display: inline-block;
+	vertical-align: middle;
+}
+
+#xwiki-actions {
+	list-style: none;
+	margin: 0;
+	padding: 0;
+}
+
+#xwiki-actions li {
+	margin: 0 1rem 0 0;
+	padding: 0;
+	display: inline-block;
+}
+
+#xwiki-top {
+	display:flex;
+	flex-direction: row;
+	align-items: center;
+}
+
+.icon-xwiki-page {
+	background:url("../../theming/img/core/filetypes/file.svg") no-repeat;
+}
+
+#xwiki-app-content {
+	width: 100%;
+}
+
+#xwiki-content {
+	padding-left: 1ex;
+	padding-right: 1ex;
+	text-align: justify;
+	word-break: break-word;
+	hyphens: auto;
+	max-width: 120ex;
+	overflow: auto;
+	position: relative;
+}
+
+#xwiki-app-content table {
+	border-collapse: collapse;
+}
+
+#xwiki-app-content td, #xwiki-app-content th {
+	padding: 0.25ex;
+	white-space: normal;
+}
+
+#xwiki-app-content td, #xwiki-app-content th {
+	border: 1px solid gray;
+}
+
+#xwiki-app-content th {
+	font-weight: bold;
+}
+
+#xwiki-app-content a {
+	color: #3E7CBC;
+}
+
+#xwiki-app-content .monospace {
+	font-family: monospace;
+}
+
+#xwiki-app-content a:hover, #xwiki-app-content a:focus {
+	color: #2b5682;
+	text-decoration: underline;
+}
+
+#xwiki-app-content .floatinginfobox {
+	float: right;
+	margin: 6px 0 6px 12px;
+}
+
+#xwiki-app-content .box, #xwiki-app-content .plainmessage, #xwiki-app-content fieldset.xwikimessage {
+	min-height: 20px;
+	padding: 19px;
+	margin-bottom: 20px;
+	background-color: #f5f5f5;
+	border: 1px solid #e3e3e3;
+	border-radius: 4px;
+	-webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05);
+	box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.05);
+	overflow-x: auto;
+}
+
+#xwiki-app-content .successmessage, #xwiki-app-content .errormessage, #xwiki-app-content .warningmessage, #xwiki-app-content .infomessage, #xwiki-app-content span.successmessage, #xwiki-app-content span.errormessage, #xwiki-app-content span.warningmessage, #xwiki-app-content span.infomessage, #xwiki-app-content span.box {
+  padding: 2px;
+}
+
+#xwiki-app-content .infomessage {
+  color: #3E7CBC;
+  background-color: #e8f0f7;
+  border-color: #e8f0f7;
+}
+
+#xwiki-app-content ul {
+	list-style: disc;
+	margin-left:2em;
+}
+
+#xwiki-app-content ol {
+	list-style: decimal;
+	margin-left:2em;
+}
+
+#xwiki-app-content p {
+	margin-top:0.5ex;
+	margin-bottom:0.5ex;
+}
+
+#xwiki-app-content h1,
+#xwiki-app-content h2,
+#xwiki-app-content h3,
+#xwiki-app-content h4,
+#xwiki-app-content h5,
+#xwiki-app-content h6 {
+	font-weight: bold;
+	margin-top:0.5ex;
+	margin-bottom:0.5ex;
+}
+
+ul#xwiki-breadcrumbs, #xwiki-breadcrumbs li {
+	margin: 0;
+	padding: 0;
+}
+
+ul#xwiki-breadcrumbs {
+	display: flex;
+	flex-direction: row;
+	align-items: stretch;
+	flex: 1;
+}
+
+#xwiki-breadcrumbs li {
+	list-style: none;
+	display: inline-flex;
+	align-content: center;
+	align-items: center;
+}
+
+#xwiki-breadcrumbs a {
+	position: relative;
+	padding: 12px;
+	opacity: 0.5;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+	overflow: hidden;
+	max-width: 200px;
+	color: inherit;
+}
+
+#xwiki-breadcrumbs a:hover, #xwiki-breadcrumbs a:focus {
+	opacity: 1;
+	text-decoration: none;
+	color: inherit;
+}
+
+#xwiki-breadcrumbs li:last-child {
+	font-weight: bold;
+	margin-right: 10px;
+}
+
+#xwiki-breadcrumbs li:not(:last-child) {
+	background-image: url("../../../core/img/breadcrumb.svg?v=1");
+	background-repeat: no-repeat;
+	background-position: right center;
+	height: 44px;
+	background-size: auto 24px;
+	padding-right: 7px;
+}
+
+
+#xwiki-breadcrumbs span.icon-xwiki {
+	margin-right: 1ex;
+}
+
+.icon-xwiki {
+	background: url("../img/app-dark.svg") no-repeat;
+}
+
+#xwiki-breadcrumbs a span {
+	display: inline-block;
+	vertical-align: middle;
+}
+
+.settings-section__desc {
+	margin-top: -0.2em;
+	margin-bottom: 1em;
+	opacity: .7;
+}
+
+.p-input input[type=checkbox] {
+	vertical-align: middle;
+}
+
+
+table {
+	min-width: 75%;
+	margin-bottom: 1em;
+}
+
+th {
+	font-weight: bold;
+}
+
+#xwiki-user-settings-instance-table td:first-child {
+	padding-right: 1em;
+	height: 3rem;
+}
+
+#xwiki-user-settings-instance-table td:last-child {
+	/* This is to avoid the table moving when adding the loading icon next to
+	 * the "Get access" button */
+	width: 100%;
+}
+
+.get-token.link-button {
+	padding-top: 0.5ex;
+	padding-bottom: 0.5ex;
+	margin: 0.5ex 0;
+	box-shadow: none;
+}

img/app-dark.svg

@@ -0,0 +1,33 @@
+<?xml version="1.0" ?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="-57 -57 114 114" style="overflow: hidden;">
+ <style type="text/css">
+    * {
+      fill: none;
+      stroke-width: 7.5px;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+    }
+    .X {
+      stroke-width: 13px;
+      stroke: #000;
+    }
+    .west {
+      stroke: #000;
+    }
+    .north {
+      stroke: #000;
+    }
+    .east {
+      stroke: #000;
+    }
+    .south {
+      stroke: #000;
+    }
+ </style>
+ <g transform="rotate(-45) translate(20 -20)" class="north"><path d="M 3 -3 L 14 -14"/></g>
+ <g transform="rotate(45) translate(20 -20)" class="east"><path d="M 3 -3 L 14 -14"/></g>
+ <g transform="rotate(135) translate(20 -20)" class="south"><path d="M 3 -3 L 14 -14"/></g>
+ <g transform="rotate(-135) translate(20 -20)" class="west"><path d="M 3 -3 L 14 -14"/></g>
+ <line class="X" x1="-35" y1="-40" x2="35" y2="40"/>
+ <line class="X" x1="-35" y1="40" x2="35" y2="-40"/>
+</svg>

img/app.svg

@@ -0,0 +1,33 @@
+<?xml version="1.0" ?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="-57 -57 114 114" style="overflow: hidden;">
+ <style type="text/css">
+    * {
+      fill: none;
+      stroke-width: 7.5px;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+    }
+    .X {
+      stroke-width: 13px;
+      stroke: #FFF;
+    }
+    .west {
+      stroke: #FFF;
+    }
+    .north {
+      stroke: #FFF;
+    }
+    .east {
+      stroke: #FFF;
+    }
+    .south {
+      stroke: #FFF;
+    }
+ </style>
+ <g transform="rotate(-45) translate(20 -20)" class="north"><path d="M 3 -3 L 14 -14"/></g>
+ <g transform="rotate(45) translate(20 -20)" class="east"><path d="M 3 -3 L 14 -14"/></g>
+ <g transform="rotate(135) translate(20 -20)" class="south"><path d="M 3 -3 L 14 -14"/></g>
+ <g transform="rotate(-135) translate(20 -20)" class="west"><path d="M 3 -3 L 14 -14"/></g>
+ <line class="X" x1="-35" y1="-40" x2="35" y2="40"/>
+ <line class="X" x1="-35" y1="40" x2="35" y2="-40"/>
+</svg>

l10n/fr.js

@@ -0,0 +1,19 @@
+OC.L10N.register(
+  "xwiki",
+  {
+	"Are you sure you want to remove this instance?": "Souhaitez-vous vraiment supprimer cette instance ?",
+	"An error occured while removing the instance.": "Une erreur est survenue lors du retrait de l’instance.",
+	"An error occured while saving the instance.": "Une erreur est survenue lors de l’enregistrement de l’instance.",
+	"Please try again later.": "Veillez réessayer plus tard.",
+	"Could not reach this instance": "Il n'a pas été possible de contacter cette instance",
+	"This wiki has the Nextcloud application :-)": "Ce wiki a l’application Nextcloud :-)",
+	"This wiki does not have the Nextcloud application. Please install it!": "Ce wiki n’a pas l’application Nextcloud. Merci de bien vouloir l’installer !",
+	"Please make sure the Nextcloud application is installed on this wiki.": "Merci de bien vouloir vous assurer que l’application Nextcloud est installée sur ce wiki.",
+	"The URL does not end with /xwiki/. It is uncommon, and this should probably be added. But some XWiki installations don’t have /xwiki/. Continue?": "L’URL ne se termine pas par /xwiki/. Ce n’est pas habituel et cela devrait probablement être ajouté. Mais certaines installation d’XWiki n’ont pas /xwiki/. Continuer ?",
+	"Do you want to notify users about this new instance?": "Souhaitez-vous informer les utilisateurs et utilisatrices à propos de cette nouvelle instance ?",
+	"We were unable to determine if the Nextcloud application is installed on this wiki. If it is not the case, you will reach a non-existing page. Continue?": "Nous n’avons pas pu déterminer si l’application Nextcloud est installée sur ce wiki. Si ce n’est pas le cas, vous vous trouverez face à une page non existante. Continuer ?",
+	"The Nextcloud application is missing on this wiki. Please install it before you can generate the client ID.": "L’application Nextcloud manque sur ce wiki. Merci de bien vouloir l’installer afin de pouvoir générer le client ID.",
+	"This wiki does not have the Nextcloud application. This is needed to get access to it from Nextcloud. Please ask its administrator to install this extension.": "Ce wiki n’a pas l’application Nextcloud. Elle est nécessaire pour y accéder depuis Nextcloud. Merci de bien vouloir demander à la personne qui l’administre d’installer cette extension.",
+	"We could not determine if this wiki has the Nextcloud application. This is needed to get access to it from Nextcloud. If you land on a non existing page, it means it is not installed, in which case please ask the administrator of the wiki to install this extension.": "Nous n’avons pas pu déterminer si ce wiki a l’application Nextcloud. Si vous atterrissez sur une page inexistante, cela veut dire qu’elle n'est pas installée, auquel cas la personne administrant ce wiki devra installer cette extension. Merci de bien vouloir lui demander de le faire."
+},
+"nplurals=3; plural=(n == 0 || n == 1) ? 0 : n != 0 && n % 1000000 == 0 ? 1 : 2;");

l10n/fr.json

@@ -0,0 +1,42 @@
+{ "translations": {
+	"Remove": "Supprimer",
+	"URL": "URL",
+	"Access": "Accès",
+	"Add": "Ajouter",
+	"Log out": "Se déconnecter",
+	"Generate": "Générer",
+	"Check": "Vérifier",
+	"Save": "Enregister",
+	"Client ID:": "Client ID :",
+	"URL:": "URL :",
+	"XWiki Instances": "Instances XWiki",
+	"Wikis and Access": "Wikis et accès",
+	"Preferences": "Préférences",
+	"Click on the search button at the top right of the screen and start typing to search XWiki content.": "Cliquez sur le bouton rechercher en haut à droite de l’écran pour trouver du contenu sur XWiki.",
+	"You will be able to see results from the following wikis:": "Vous pourrez trouver du contenu dans les wikis suivant :",
+	"Sign in to these wikis to be able to see personalized results.": "Connectez-vous à ces wikis pour obtenir des résultats personnalisés.",
+	"You can do so in the <a href='%s'>XWiki settings</a>.": "Vous pouvez le faire dans les <a href='%s'>paramètres XWiki</a>.",
+	"(not signed in)": "(non connecté·e)",
+	"An error happened while getting access to this wiki.": "Une erreur est survenue lors de l’obtention de l'accès à ce wiki.",
+	"Please ask its administrator to register this Nextcloud instance.": "Merci de bien vouloir demander à la personne qui s’occupe de cette instance Nextcloud de l’enregistrer auprès d'XWiki.",
+	"You cancelled the access.": "Vous avez annulé la demande d’accès.",
+	"XWiki didn’t provide an access token.": "XWiki n’a pas fourni de jeton d’accès (access token).",
+	"With the XWiki app, you will be able to search and display XWiki content.": "Avec l’application XWiki, vous allez pouvoir chercher et afficher du contenu venant d’XWiki.",
+	"You can start browsing XWiki content using the menu on the left.": "Vous pouvez naviguer dans le contenu XWiki à l’aide du menu à gauche.",
+	"To browse XWiki content from here, please enable the integrated mode.": "Pour naviguer dans le contenu XWiki depuis ici, merci de bien vouloir activer le mode intégré.",
+	"Note that this feature is still experimental and some bugs can show up. Please report any issue you find. Feedback welcome.": "Notez que cette fonctionalité est encore expérimentale et des problèmes peuvent apparaitre. Merci de bien vouloir rapporter tout soucis que vous pourriez trouver. Aussi, tout retour sera apprécié.",
+	"You can add XWiki instances that users will be able to access from Nextcloud.": "Vous pouvez ajouter des instances XWiki que les utilisateurs pourrons utiliser depuis Nextcloud.",
+	"Note: client IDs will allow Nextcloud users to log in to XWiki instances and have personalized search result. Administrators of XWiki instance can generate a Client ID with the XWiki Nextcloud application which can be installed using the extension manager.": "Note : Le client ID permettra aux utilisateurs Nextcloud de se connecter aux instances XWiki et obtenir des resultats de recherches personnalisés. Les administrateurs des instances XWiki peuvent générer un client ID avec l’application Nextcloud pour XWiki installable depuis le gestionnaire d’extensions.",
+	"An instance with this URL already exists.": "Une instance avec cette URL existe déjà.",
+	"Could not find the instance you are trying to replace. This should not happen, please report a bug.": "Impossible de trouver l’instance que vous cherchez à remplacer. Cela ne devrait pas arriver, merci de bien vouloir écrire un rapport de bug.",
+	"By default, you are redirected to XWiki whenever you click on a search result. If you enable the integrated mode, XWiki results will be displayed within Nextcloud. This can lead to a more seamless experience, but this mode is experimental and there can be display issues.": "Par défaut, nous vous redirigeons vers XWiki quand vous cliquez sur un résultat de recherche. Si vous activez le mode intégré, les résultats XWiki seront affichés dans Nextcloud. Cela peut mener à une expérience plus fluide, mais ce mode est expérimental et des problèmes d’affichage peuvent survenir.",
+	"Integrated mode (experimental)": "Mode intégré (expérimental)",
+	"Please ask your administrator to set up this instance to get access.": "Merci de bien vouloir demander à la personne qui administre cette instance de la paramétrer pour obtenir l’accès.",
+	"Please ask its administrator to register this Nextcloud instance.": "Merci de bien vouloir demander à la personne qui l'administre d’ajouter cette instance Nextcloud.",
+	"When you search something, Nextcloud will fetch results from the following wikis. By default, Nextcloud is not logged to these wikis, so results will be what guests see.": "Quand vous cherchez quelque chose, Nextcloud récupèrera les résultats depuis les wikis suivants. Par défaut, Nextcloud n'est pas connecté à ces wikis, donc les résultats correspondrons à ceux que les visiteurs et visiteuses voient.",
+	"Get access": "Obtenir l’accès",
+	"Do you want to access another wiki from Nextcloud? Please ask your administrator to add it!": "Souhaitez-vous accéder à un autre wiki depuis Nextcloud ? Demandez-le à la personne administrant cette instance de Nextcloud !",
+	"No wikis are registered yet. Please ask your administrator to add some.": "Pour l'instant, aucun wiki n’est enregistré. Merci de bien vouloir demander à la personne administrant cette instance d’en ajouter.",
+	"If you have an XWiki account, you can click on “Get access” so Nextcloud will be able to give you results for the things you can access.": "Si vous avez un compte XWiki, vous pouvez cliquer sur « Obtenir l’accès » pour que Nextcloud puisse vous donner des résultats de recherches pour les choses que vous avez le droit de voir"
+}, "pluralForm": "nplurals=3; plural=(n == 0 || n == 1) ? 0 : n != 0 && n % 1000000 == 0 ? 1 : 2;"
+}

lib/AppInfo/Application.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\Xwiki\AppInfo;
+
+use OCA\Xwiki\Search\Provider;
+use OCA\Xwiki\XWikiNotifier;
+use OCP\AppFramework\App;
+use OCP\Notification\IManager;
+use OCP\AppFramework\Bootstrap\IBootContext;
+use OCP\AppFramework\Bootstrap\IBootstrap;
+use OCP\AppFramework\Bootstrap\IRegistrationContext;
+
+class Application extends App implements IBootstrap {
+	public const APP_ID = 'xwiki';
+
+	public function __construct() {
+		parent::__construct(self::APP_ID);
+	}
+
+	public function register(IRegistrationContext $context): void {
+		$context->registerSearchProvider(Provider::class);
+		$context->registerNotifierService(XWikiNotifier::class);
+	}
+
+	public function boot(IBootContext $context): void {}
+}

lib/Controller/PageController.php

@@ -0,0 +1,266 @@
+<?php
+namespace OCA\Xwiki\Controller;
+
+use OCP\IRequest;
+use OCA\Xwiki\Controller\SettingsController;
+use OCA\Xwiki\Instance;
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\Http\EmptyContentSecurityPolicy;
+use OCP\AppFramework\Http\JSONResponse;
+use OCP\AppFramework\Http\RedirectResponse;
+use OCP\AppFramework\Http\TemplateResponse;
+use OCP\IURLGenerator;
+use OCP\IL10N;
+use OCP\Files\File;
+use OCP\Files\FileInfo;
+use OCP\Files\IRootFolder;
+
+// Thanks https://www.php.net/manual/fr/class.domelement.php#101243
+function get_inner_html($node) {
+    $innerHTML =  '';
+    foreach ($node->childNodes as $child) {
+        $innerHTML .= $child->ownerDocument->saveXML($child);
+    }
+    return $innerHTML;
+}
+
+class PageController extends Controller {
+	private $userId;
+	private SettingsController $settings;
+	private IL10N $l10n;
+	private IRootFolder $rootFolder;
+	private IURLGenerator $urlGenerator;
+
+	public function __construct($AppName, IRequest $request, $UserId, SettingsController $settings, IL10N $l10n, IURLGenerator $urlGenerator, IRootFolder $rootFolder) {
+		parent::__construct($AppName, $request);
+		$this->userId = $UserId;
+		$this->settings = $settings;
+		$this->l10n = $l10n;
+		$this->urlGenerator = $urlGenerator;
+		$this->rootFolder = $rootFolder;
+	}
+
+	public function savePDF(): JSONResponse {
+		$instance = null;
+		$i = $this->request->getParam('i');
+		if ($i) {
+			$instance = $this->settings->getInstance($i);
+		}
+
+		if (empty($instance)) {
+			return new JSONResponse(
+				['error' => $this->l10n->t('This XWiki instance was not found in the admin settings. Please contact your administrator.')],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		$page = $this->request->getParam('p');
+		if (empty($page)) {
+			return new JSONResponse(
+				['error' => $this->l10n->t('Please provide a page name in the p parameter.')],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		$path = $this->request->getParam('save_path');
+		if (empty($path)) {
+			return new JSONResponse(
+				['error' => $this->l10n->t('Please provide a path in the save_path parameter.')],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		$userFolder = $this->rootFolder->getUserFolder($this->userId);
+
+		$xwikiExportPDFURL = $instance->getLinkFromId($page, 'export') . '?format=pdf';
+		try {
+			$f = $userFolder->get($path);
+		} catch (\OCP\Files\NotFoundException $e) {}
+
+		$page = strtr(explode(':', $page, 2)[1], ':', '_');
+		$suffix = '';
+		$originalPath = $path;
+		$i = 0;
+		if ($f->getType() === FileInfo::TYPE_FOLDER) {
+			do {
+				$path = $originalPath . '/' . $page . $suffix . '.pdf';
+				$i++;
+				$suffix = '.' . $i;
+			} while ($userFolder->nodeExists($path));
+		}
+
+		$content = file_get_contents($xwikiExportPDFURL);
+		if (empty($content)) {
+			return new JSONResponse(
+				['error' => $this->l10n->t('Could not get the content of this page.')],
+				Http::STATUS_INTERNAL_SERVER_ERROR
+			);
+		}
+
+		try {
+			if ($userFolder->newFile($path, $content)) {
+				return new JSONResponse(['ok' => true, 'path' => $path]);
+			}
+		} catch (\OCP\Files\NotPermittedException $e) {
+			return new JSONResponse(
+				['error' => $this->l10n->t('You are not permitted to create this file.'), 'path' => $path],
+				Http::STATUS_INTERNAL_SERVER_ERROR
+			);
+		}
+
+		return new JSONResponse(
+			['error' => $this->l10n->t('Could not create the file.')],
+			Http::STATUS_INTERNAL_SERVER_ERROR
+		);
+	}
+
+	/**
+	 * CAUTION: the @Stuff turns off security checks; for this page no admin is
+	 *          required and no CSRF check. If you don't know what CSRF is, read
+	 *          it up in the docs or you might create a security hole. This is
+	 *          basically the only required method to add this exemption, don't
+	 *          add it to any other method if you don't exactly know what it does
+	 *
+	 * @NoAdminRequired
+	 * @NoCSRFRequired
+	 */
+	public function index() {
+		$xwikiURL = '';
+		$xwikiEditURL = '';
+		$title = '';
+		$instanceURL = '';
+		$instance = null;
+		$pages = [];
+		$page = '';
+		$xwikiExportPDFURL = '';
+		$integratedMode = $this->settings->getFromUserJSON('integratedMode', 'false');
+
+		$i = $this->request->getParam('i');
+		if ($i) {
+			if (!$integratedMode) {
+				return new RedirectResponse(
+					$this->urlGenerator->linkToRoute('xwiki.page.index')
+				);
+			}
+
+			$instance = $this->settings->getInstance($i);
+			if ($instance) {
+				$instanceURL = $instance->getPrettyName();
+				$page = $this->request->getParam('p');
+				$xwikiURL = $instance->getLinkFromId($page);
+				$xwikiEditURL = $instance->getLinkFromId($page, 'edit');
+				$xwikiExportPDFURL = $instance->getLinkFromId($page, 'export') . '?format=pdf';
+				if ($integratedMode) {
+					$doc = $instance->loadHTML($xwikiURL);
+					$xwikiContent = '';
+
+					if ($doc !== null && $doc->documentElement !== null) {
+						$ref = $doc->documentElement->getAttribute('data-xwiki-reference');
+						if (!empty($ref)) {
+							$page = $ref;
+							$xwikiURL = $instance->getLinkFromId($page);
+							$xwikiEditURL = $instance->getLinkFromId($page, 'edit');
+							$xwikiExportPDFURL = $instance->getLinkFromId($page, 'export') . '?format=pdf';
+						}
+
+						$xwikiContent = $doc->getElementById('xwikicontent');
+
+						$titleTag = $doc->getElementById('document-title');
+						if ($titleTag) {
+							$title = $titleTag->textContent;
+						}
+					}
+
+					if (!empty($xwikiContent)) {
+						$dirnameXWikiURL = dirname($xwikiURL);
+						$instanceBaseURL = preg_replace('|^(https?://[^/]+).*|i', '$1', $instance->url);
+
+						foreach ($xwikiContent->getElementsByTagName('*') as $tag) {
+							foreach (['src', 'href'] as $attrName) {
+								$attr = $tag->getAttribute($attrName);
+								if (!empty($attr)) {
+									if (!preg_match('#^https?://#i', $attr)) {
+										if ($attr[0] === '/') {
+											$attr = $instanceBaseURL . $attr;
+										} else {
+											$attr = $dirnameXWikiURL . $attr;
+										}
+									}
+
+									if ($attrName === 'href' && strtolower($tag->nodeName) === 'a') {
+										$id = \OCA\Xwiki\Instance::getIdFromLink($attr, $instance->url, true);
+										if (!empty($id)) {
+											$attr = $this->urlGenerator->linkToRoute('xwiki.page.index', [
+												'i' => $instance->url,
+												'p' => $id,
+											]);
+										}
+									}
+
+									$tag->setAttribute($attrName, $attr);
+									$tag->setAttribute("data-nextcloud-xwiki-dbg", \OCA\Xwiki\Instance::getIdFromLink($attr, $instance->url, true));
+								}
+							}
+						}
+						$content = get_inner_html($xwikiContent);
+					} else {
+						$content = $this->l10n->t('Could not find the content of this page.');
+					}
+					[$wiki, $unqualifiedPage] = explode(':', $page, 2);
+					if (str_ends_with($unqualifiedPage, '.WebHome')) {
+						$unqualifiedPage = substr($unqualifiedPage, 0, -8);
+					}
+
+					$pagesURL = ($instance->getPageListRestURL($wiki, $unqualifiedPage));
+					if (!empty($pagesURL)) {
+						$doc = $instance->loadXML($pagesURL);
+						if (!empty($doc)) {
+							foreach ($doc->getElementsByTagName('pageSummary') as $pageSummary) {
+								$pages[] = [
+									'url' => $this->urlGenerator->linkToRoute('xwiki.page.index', [
+										'i' => $instance->url,
+										'p' => $pageSummary->getElementsByTagName('id')[0]->textContent
+									]),
+									'title' => (
+										$pageSummary->getElementsByTagName('title')[0]->textContent
+										?: $pageSummary->getElementsByTagName('name')[0]->textContent
+										?: $pageSummary->getElementsByTagName('fullName')[0]->textContent
+									)
+								];
+							}
+						}
+					}
+				}
+			} else {
+				$content = $this->l10n->t('This XWiki instance was not found in the admin settings. Please contact your administrator.');
+			}
+		}
+
+		$response = new TemplateResponse('xwiki', 'index', [
+			'content' => $content,
+			'title' => $title,
+			'xwikiInstance' => $instanceURL,
+			'instances' => $this->settings->getInstances(),
+			'xwikiURL' => $xwikiURL,
+			'xwikiEditURL' => $xwikiEditURL,
+			'xwikiExportPDFURL' => $xwikiExportPDFURL,
+			'urlGenerator' => $this->urlGenerator,
+			'currentInstance' => $instance,
+			'pages' => $pages,
+			'currentPage' => $page,
+			'integratedMode' => $integratedMode
+		]);  // templates/index.php
+
+		if (!empty($instance)) {
+			$cspURL = $instance->url . '/';
+			$csp = $response->getContentSecurityPolicy();
+			$csp->addAllowedImageDomain($cspURL);
+			$csp->addAllowedMediaDomain($cspURL);
+			$response->setContentSecurityPolicy($csp);
+		}
+
+		return $response;
+	}
+}

lib/Controller/SettingsController.php

@@ -0,0 +1,436 @@
+<?php
+
+namespace OCA\Xwiki\Controller;
+
+use OCA\Xwiki\Instance;
+
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\DataDisplayResponse;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\Http\JSONResponse;
+use OCP\AppFramework\Http\RedirectResponse;
+use OCP\AppFramework\Http\NotFoundResponse;
+use OCP\Notification\IManager;
+use OCP\IConfig;
+use OCP\IL10N;
+use OCP\IRequest;
+use OCP\IURLGenerator;
+use OCP\IUserManager;
+use OCP\PreConditionNotMetException;
+use OCP\Util;
+use OCP\IUser;
+
+class SettingsController extends Controller {
+	private $userId;
+	private IL10N $l10n;
+	private IConfig $config;
+	private IURLGenerator $urlGenerator;
+	private IManager $manager;
+	private IUserManager $userManager;
+
+	public function __construct(
+		$appName,
+		$UserId,
+		IRequest $request,
+		IL10N $l10n,
+		IURLGenerator $urlGenerator,
+		IConfig $config,
+		IManager $manager,
+		IUserManager $userManager
+	) {
+		parent::__construct($appName, $request);
+		$this->l10n = $l10n;
+		$this->config = $config;
+		$this->request = $request;
+		$this->urlGenerator = $urlGenerator;
+		$this->userId = $UserId;
+		$this->userManager = $userManager;
+		$this->manager = $manager;
+	}
+
+	public function getInstances(): array {
+		$res = [];
+		foreach ($this->getFromAppJSON('instances', '[]') as $instance) {
+			$url = $instance['url'];
+			if (!empty($url)) {
+				$res[] =  Instance::fromArray($instance, $this->getUserToken($url));
+			}
+		}
+		return $res;
+	}
+
+	/**
+	 * @NoCSRFRequired
+	*/
+	public function addToken() {
+		$instanceUrl = $this->request->getParam('i');
+		$token = $this->request->getParam('token');
+		$this->setUserToken($instanceUrl, $token);
+		return new RedirectResponse(
+			$this->urlGenerator->linkToRoute(
+				'settings.PersonalSettings.index',
+				['section' => 'xwiki']
+			)
+		);
+	}
+
+	public function requestToken() {
+		$instanceUrl = $this->request->getParam('i');
+		$instance = $this->getInstance($instanceUrl);
+		if ($instance !== null) {
+			$state = bin2hex(random_bytes(20));
+			$states = $this->getFromAppJSON('oidc_states', []);
+			$states[$state] = [
+				'user' => $this->userId,
+				'instance' => $instance->url,
+				'date' => $_SERVER['REQUEST_TIME']
+			];
+			$this->saveAsAppJSON('oidc_states', $states);
+			// FIXME check instance
+			return new RedirectResponse(
+				$instanceUrl
+				. '/bin/view/Nextcloud/Tokens?' . http_build_query([
+					'response_type' => 'code',
+					'client_id' => $instance->clientId,
+					'state' => $state,
+					'redirect_uri' => $this->getRedirectURL()
+				])
+			);
+		} // else todo
+	}
+
+	public function getRedirectURL() {
+		return (empty($_SERVER['HTTPS']) ? 'http://' : 'https://') .
+			$_SERVER['SERVER_NAME'] .
+			$this->urlGenerator->linkToRoute('xwiki.settings.oidcRedirect');
+	}
+
+	/**
+	 * @NoCSRFRequired
+	*/
+	public function oidcRedirect() {
+		$state = $this->request->getParam('state');
+		$code = $this->request->getParam('code');
+		$states = $this->getFromAppJSON('oidc_states', []);
+
+		if (empty($states[$state])) {
+			return new RedirectResponse(
+				$this->urlGenerator->linkToRoute(
+					'settings.PersonalSettings.index',
+					['section' => 'xwiki', 'diagnostic' => 'state not found']
+				)
+			);
+		}
+
+		['instance' => $instanceURL, 'user' => $user] = $states[$state];
+		unset($states[$state]);
+		$this->saveAsAppJSON('oidc_states', $states);
+		$instance = $this->getInstance($instanceURL);
+		$error = $this->request->getParam('error');
+		if (!empty($error)) {
+			return new RedirectResponse(
+				$this->urlGenerator->linkToRoute(
+					'settings.PersonalSettings.index', [
+						'section' => 'xwiki',
+						'error' => $error,
+						// 'error_description' => $this->request->getParam('error_description'),
+						'i' => $instance->url
+					]
+				)
+			);
+		}
+
+		if ($user === $this->userId) {
+			$answer = file_get_contents(
+				$instanceURL . '/bin/view/Nextcloud/Tokens/Create',
+				false,
+				stream_context_create(['http' => [
+					'method' => 'POST',
+					'header'  => 'Content-type: application/x-www-form-urlencoded',
+					'content' => http_build_query([
+						'grant_type' => 'authorization_code',
+						'code' => $code,
+						'redirect_uri' => $this->getRedirectURL()
+					])
+				]])
+			);
+
+			$t = json_decode($answer, true);
+
+			if (empty($t) || empty($t['access_token'])) {
+				return new RedirectResponse(
+					$this->urlGenerator->linkToRoute(
+						'settings.PersonalSettings.index', [
+							'section' => 'xwiki',
+							'error' => 'missing_access_token',
+							'i' => $instance->url
+						]
+					)
+				);
+			}
+
+			$this->setUserToken($instanceURL, $t['access_token']);
+		}
+
+		return new RedirectResponse(
+			$this->urlGenerator->linkToRoute(
+				'settings.PersonalSettings.index',
+				['section' => 'xwiki']
+			)
+		);
+	}
+
+	public function deleteToken() {
+		$instanceUrl = $this->request->getParam('i');
+		$this->setUserToken($instanceUrl, '');
+		return new RedirectResponse(
+			$this->urlGenerator->linkToRoute(
+				'settings.PersonalSettings.index',
+				['section' => 'xwiki']
+			)
+		);
+	}
+
+	public function setUserValue() {
+		$key = $this->request->getParam('k');
+		$value = $this->request->getParam('v');
+
+		if (empty($key)) {
+			return new JSONResponse([
+				'error' => 'Mandatory parameter:' .
+					' k. Use v to give the value. ' .
+					'If unset, the setting will be removed'
+			], Http::STATUS_BAD_REQUEST);
+		}
+
+		if ($key !== 'integratedMode') {
+			return new JSONResponse(
+				['error' => 'Unknown key ' . $key],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		if (empty($value)) {
+			$this->config->deleteUserValue($this->userId, 'xwiki', $key);
+		}
+
+		$this->saveAsUserString($key, $value);
+		return new JSONResponse(['ok' => true]);
+	}
+
+	public function getInstance($url): Instance | null {
+		foreach ($this->getFromAppJSON('instances', '[]') as $instance) {
+			if ($instance['url'] === $url) {
+				return Instance::fromArray($instance, $this->getUserToken($url));
+			}
+		}
+		return null;
+	}
+
+	public function getUserToken(string $url) {
+		$tokens = $this->getFromUserJSON('tokens', '{}');
+		if (!empty($tokens[$url])) {
+			return $tokens[$url];
+		}
+
+		return '';
+	}
+
+	public function setUserToken(string $url, string $token) {
+		$tokens = $this->getFromUserJSON('tokens', '{}');
+		if (empty($token)) {
+			unset($tokens[$url]);
+		} else {
+			$tokens[$url] = $token;
+		}
+		$this->saveAsUserJSON('tokens', $tokens);
+	}
+
+	public function addInstance(): JSONResponse {
+		$url = Instance::fixURL($this->request->getParam('url'));
+		$clientId = trim($this->request->getParam('clientId'));
+
+		if (empty($url)) {
+			return new JSONResponse(
+				['error' => 'Mandatory parameter: url'],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		$instances = $this->getFromAppJSON('instances', '[]');
+
+		foreach ($instances as $instance) {
+			if ($instance['url'] === $url) {
+				return new JSONResponse(
+					['error' => $this->l10n->t('An instance with this URL already exists.')],
+					Http::STATUS_BAD_REQUEST
+				);
+			}
+		}
+
+		$instances[] = ['url' => $url, 'clientId' => $clientId];
+
+		$this->saveAsAppJSON('instances', $instances);
+
+		$this->maybeNotify($url);
+
+		return new JSONResponse(['ok' => true, 'url' => $url]);
+	}
+
+	private function maybeNotify(string $url) {
+		if ($this->request->getParam('notifyUsers') === 'true') {
+			$instance = new Instance($url);
+			$prettyName = $instance->getPrettyName();
+
+			$notification = $this->manager->createNotification();
+			$notification->setApp('xwiki')
+				->setDateTime(new \DateTime())
+				->setObject('new_wiki_added', $instance->url)
+				->setSubject('new_wiki_added', [$prettyName]);
+
+			$this->userManager->callForAllUsers(function (IUser $user) use (&$notification) {
+				$notification->setUser($user->getUID());
+				$this->manager->notify($notification);
+			});
+		}
+	}
+
+	public function pingInstance(): JSONResponse {
+		$url = Instance::fixURL($this->request->getParam('url'));
+
+		if (empty($url)) {
+			return new JSONResponse(
+				['error' => 'Mandatory parameter: url'],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		$restURL = $url . '/rest';
+		$q = file_get_contents($restURL);
+
+		if (empty($q)) {
+			return new JSONResponse(
+				['error' => $this->l10n->t('We did not get a successful reply from the instance (URL: %s)', [$restURL])],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		$matches = null;
+		preg_match('#<version(?:[\s][^>]*)?>([^<]+)</version>#', $q, $matches);
+		$version = $matches[1];
+		if (empty($version)) {
+			return new JSONResponse(
+				['error' => $this->l10n->t('We did not understand the instance’s version')],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		return new JSONResponse([
+			'ok' => true,
+			'version' => $version,
+			'url' => $url,
+			'hasNextcloudApplication' => Instance::hasNextcloudApplication($url)
+		]);
+	}
+
+	public function replaceInstance(): JSONResponse {
+		$oldUrl = $this->request->getParam('oldUrl');
+		$newUrl = $this->request->getParam('newUrl');
+		$clientId = trim($this->request->getParam('clientId'));
+
+		if (empty($oldUrl) || empty($newUrl)) {
+			return new JSONResponse(
+				['error' => 'Mandatory parameters: oldUrl and newUrl'],
+				Http::STATUS_BAD_REQUEST
+			);
+		}
+
+		$found = null;
+		$instances = $this->getFromAppJSON('instances', '[]');
+		foreach ($instances as &$instance) {
+			if ($instance['url'] === $oldUrl) {
+				$instance['url'] = Instance::fixURL($newUrl);
+				$instance['clientId'] = $clientId;
+				$found = $instance;
+			} else if ($instance['url'] === $newUrl) {
+				return new JSONResponse(
+					['error' => $this->l10n->t('An instance with this URL already exists')],
+					Http::STATUS_BAD_REQUEST
+				);
+			}
+		}
+
+		if (!$found) {
+			return new JSONResponse(['error' => $this->l10n->t('Could not find the instance you are trying to replace. This should not happen, please report a bug.')]);
+		}
+
+		$this->saveAsAppJSON('instances', $instances);
+		$this->maybeNotify($newUrl);
+		return new JSONResponse(['ok' => true, 'url' => $found['url']]);
+	}
+
+	private function saveAsAppJSON($key, $value): void {
+		$this->config->setAppValue(
+			'xwiki',
+			$key,
+			json_encode(
+				$value,
+				JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_NUMERIC_CHECK
+			)
+		);
+	}
+
+	private function saveAsUserJSON(string $key, mixed $value): void {
+		$this->saveAsUserString(
+			$key,
+			json_encode(
+				$value,
+				JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_NUMERIC_CHECK
+			)
+		);
+	}
+
+	private function saveAsUserString(string $key, string $value): void {
+		$this->config->setUserValue($this->userId, 'xwiki', $key, $value);
+	}
+
+	public function getFromAppJSON($key, $defaultJSONString): mixed {
+		return $this->getFromJSON(
+			$this->config->getAppValue('xwiki', $key, $defaultJSONString),
+			$defaultJSONString
+		);
+	}
+
+	public function getFromUserJSON($key, $defaultJSONString): mixed {
+		return $this->getFromJSON(
+			$this->config->getUserValue($this->userId, 'xwiki', $key, $defaultJSONString),
+			$defaultJSONString
+		);
+	}
+
+	private function getFromJSON($configVal, $defaultJSONString): mixed {
+		$configVal = empty($configVal) ? '' : json_decode($configVal, true);
+
+		if (($defaultJSONString === '[]' || is_array($defaultJSONString)) && !is_array($configVal)) {
+			return [];
+		}
+
+		return $configVal;
+	}
+
+	public function deleteInstance(): JSONResponse {
+		$url = $this->request->getParam('url');
+
+		$this->saveAsAppJSON('instances', array_filter(
+			$this->getFromAppJSON('instances', '[]'),
+			function ($instance) use ($url) {
+				return !empty($instance['url']) && $instance['url'] !== $url;
+			}
+		));
+
+		// TODO: cleanup token from all user's config
+
+		return new JSONResponse(['ok' => true]);
+	}
+}

lib/Instance.php

@@ -0,0 +1,278 @@
+<?php
+
+namespace OCA\Xwiki;
+
+use DOMDocument;
+
+class Instance {
+	public static Instance $DUMMY;
+
+	public string $url;
+	public string $token;
+	public string $clientId;
+
+	public function __construct(string $url, string $token = '', string $clientId = '') {
+		$this->url = Instance::fixURL($url);
+		$this->token = $token;
+		$this->clientId = $clientId;
+	}
+
+	public static function fromArray(array $instance, string $token = ''): Instance {
+		$clientId = empty($instance['clientId']) ? '' : $instance['clientId'];
+		return new Instance($instance['url'], $token, $clientId);
+	}
+
+
+	public static function fixURL(string $url): string {
+		if (empty($url)) {
+			return '';
+		}
+
+		$url = strtolower(trim($url));
+		if (!str_starts_with($url, 'https:') && !str_starts_with($url, "http:")) {
+			$url = (
+				filter_var(parse_url('http://' . $url, PHP_URL_HOST), FILTER_VALIDATE_IP) === false
+					? 'https://'
+					: 'http://'
+			) . $url;
+		}
+
+
+
+		return rtrim($url, '/');
+	}
+
+	public function setURL($url) {
+		$this->url = Instance::fixURL($url);
+	}
+
+	private function getRestURL(string $wiki, string $pageOrSpace, string $lastPart): string {
+		$restURL = "$this->url//rest/wikis/$wiki";
+		$pageParts = $this->getPageParts($pageOrSpace);
+
+		$lenMinusOne = count($pageParts) - 1;
+
+		for ($i = 0; $i < $lenMinusOne; $i++) {
+			$restURL .= '/spaces/' . $pageParts[$i];
+		}
+
+		return $restURL . '/' . $lastPart . '/' . $pageParts[$lenMinusOne];
+	}
+
+	public static function getPageParts(string $pageOrSpace) {
+		return explode('/', Instance::dotsToSlashes($pageOrSpace));
+	}
+
+	public function getPageRestURL(string $wiki, string $page): string {
+		return $this->getRestURL($wiki, $page, 'pages');
+	}
+
+	public function getPageListRestURL(string $wiki, string $space): string {
+		return $this->getRestURL($wiki, $space, 'spaces') . '/pages';
+	}
+
+	public static function dotsToSlashes(string $page): string {
+		$pageRelativeURL = '';
+		for ($i = 0, $len = strlen($page); $i < $len; $i++) {
+			if ($page[$i] === '.') {
+				$pageRelativeURL .= '/';
+			} else {
+				if ($page[$i] === '\\' && $i + 1 < $len) {
+					$i++;
+				}
+				$pageRelativeURL .= $page[$i];
+			}
+		}
+		return $pageRelativeURL;
+	}
+
+	public function getLinkFromId(string $id, string $action = 'view'): string {
+		[$wiki, $page]  = explode(':', $id, 2);
+		$baseLink = (
+			$this->url .
+			'/' . (
+				$wiki === 'xwiki'
+					? 'bin'
+					: ('wiki/' . $wiki)
+			) . '/' . $action . '/'
+		);
+
+		return $baseLink . Instance::dotsToSlashes($page);
+	}
+
+	public static function getIdFromLink(string $link, string $instanceURL, bool $forceView): string {
+		$instanceURLAfterDomain =  preg_replace('|^https?://[^/]+/+|i', '', $instanceURL);
+
+		if (str_starts_with(strtolower($link), 'http') && !str_starts_with($link, $instanceURL)) {
+			return '';
+		}
+
+		$link = preg_replace('|^https?://[^/]+/+|i', '', $link);
+		if (!str_starts_with($link, $instanceURLAfterDomain)) {
+			return '';
+		}
+
+		$link = substr($link, strlen($instanceURLAfterDomain));
+		$link = preg_replace('|/{2,}|', '/', $link);
+		$link = preg_replace('|^/+|', '', $link);
+		$link = preg_replace('|/+$|', '/WebHome', $link);
+		$link = preg_replace('|\\?.*//$|', '', $link);
+		$link = preg_replace('|\\#.*//$|', '', $link); // FIXME keep the anchor
+
+		$parts = explode('/', $link);
+		if (!count($parts) ) {
+			return 'xwiki:Main';
+		}
+
+		$wiki = 'xwiki';
+		if ($parts[0] === 'wiki') {
+			$wiki = $parts[1];
+			if ($forceView && $parts[2] !== 'view') {
+				return '';
+			}
+			$pageParts = array_slice($parts, 3);
+		} else if ($parts[0] === 'bin') {
+			if ($forceView && $parts[1] !== 'view') {
+				return '';
+			}
+			$pageParts = array_slice($parts, 2);
+		} else {
+			$pageParts = $parts;
+		}
+
+		$len = count($pageParts);
+		for ($i = 0; $i < $len; $i++) {
+			$pageParts[$i] = str_replace('.', '\\.', $pageParts[$i]);
+		}
+
+		$page = join('.', $pageParts);
+		if (empty($page)) {
+			$page = 'Main';
+		}
+
+		return $wiki . ':' . urldecode($page);
+	}
+
+	public function getHomeURL(string $action = 'view'): string {
+		return $this->getLinkFromId('xwiki:WebHome', $action);
+	}
+
+	public function getPrettyName(): string {
+		$host = parse_url($this->url, PHP_URL_HOST);
+
+		if (empty($host)) {
+			$host = $this->url;
+		}
+
+		if (str_starts_with($host, 'http://')) {
+			$host = substr($host, 7);
+		} else if (str_starts_with($host, 'https://')) {
+			$host = substr($host, 8);
+		}
+
+		if (str_starts_with($host, 'www.')) {
+			$host = substr($host, 4);
+		}
+
+		if (str_ends_with($host, '/xwiki')) {
+			$host = substr($host, 0, strlen($host) - 6);
+		}
+
+		return $host;
+	}
+
+	public function getFile($url) {
+		if (!str_starts_with($url, 'http://') && !str_starts_with($url, 'https://')) {
+			if ($url[0] !== '/') {
+				$url = '/' . $url;
+			}
+			$url = $this->url . $url;
+		}
+
+		$context = null;
+		if (!empty($this->token)) {
+			$context = stream_context_create([
+				'http' => [
+					'method'  => 'GET',
+					'header'  => 'Authorization: Bearer ' . $this->token
+				]
+			]);
+		}
+
+		return file_get_contents($url, false, $context);
+	}
+
+	// returns
+	//  - true if the instance has nextcloud integration
+	//  - false if it does not have it
+	//  - null if we don't know
+	public static function hasNextcloudApplication($url) {
+		$matches = [];
+		$headers = get_headers(
+			$url . '/rest/wikis/xwiki/spaces/Nextcloud/pages/WebHome',
+			false,
+			stream_context_create(['http' => ['method'  => 'HEAD']])
+		);
+
+		if (empty($headers) || !preg_match(
+			'#^HTTP/[\S]+[\s]+([0-9]+)#i',
+			$headers[0],
+			$matches
+		)) {
+			return null;
+		}
+
+		$status = $matches[1];
+
+		if ($status === '200') {
+			return true;
+		}
+
+		if ($status === '404') {
+			return false;
+		}
+
+		// Could be that the instance requires authentication, or some other error
+		return null;
+	}
+
+	public function loadXML(string $url) {
+		$doc = new DOMDocument();
+		try {
+			if (empty($this->token)) {
+				$doc->load($url);
+			} else {
+				$f = $this->getFile($url);
+				if (empty($f)) {
+					return null;
+				}
+				$doc->loadXML($f);
+			}
+		} catch (Exception $e) {
+			return null;
+		}
+		return $doc;
+	}
+
+	public function loadHTML(string $url) {
+		try {
+			if (empty($this->token)) {
+				$doc = new DOMDocument();
+				$doc->loadHTMLFile($url);
+			} else {
+				$file = $this->getFile($url);
+				if (empty($file)) {
+					return null;
+				}
+				$doc = new DOMDocument();
+				$doc->loadHTML($file);
+			}
+		} catch (Exception $e) {
+			return null;
+		}
+
+		return $doc;
+	}
+}
+
+Instance::$DUMMY = new Instance('');

lib/Search/Provider.php

@@ -0,0 +1,149 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\Xwiki\Search;
+
+use OCA\Xwiki\Controller\SettingsController;
+use OCP\IUser;
+use OCP\Search\SearchResult;
+use OCP\Search\IProvider;
+use OCP\Search\ISearchQuery;
+use OCP\Search\SearchResultEntry;
+use OCP\IURLGenerator;
+
+if (!function_exists('str_starts_with')) {
+	// TODO: remove when PHP < 8 is not used anymore
+	// Thanks https://www.php.net/manual/en/function.str-starts-with.php#126531
+	function str_starts_with(string $haystack, string $needle): bool {
+	    return (@substr_compare($haystack, $needle, 0, strlen($needle)) === 0);
+	}
+}
+
+class Provider implements IProvider {
+	public SettingsController $config;
+
+	public function __construct(SettingsController $config, IURLGenerator $urlGenerator) {
+		$this->config = $config;
+        $this->urlGenerator = $urlGenerator;
+	}
+
+	public function getId(): string {
+		return 'xwiki';
+	}
+
+	public function getName(): string {
+		return 'XWiki';
+	}
+
+	public function getOrder(string $route, array $routeParameters): int {
+		if (strpos($route, 'xwiki' . '.') === 0) {
+			// Active app, prefer my results
+			return -1;
+		}
+
+		return 55;
+	}
+
+	public function search(IUser $user, ISearchQuery $query): SearchResult {
+		$results = [];
+
+		$integratedMode = $this->config->getFromUserJSON('integratedMode', 'false');
+		$instances = $this->config->getInstances();
+		$instanceCount = count($instances);
+		foreach ($instances as $instance) {
+			$tags = null;
+			$content = $instance->getFile(
+				'/rest/wikis/query?q=' .
+				rawurlencode($query->getTerm())
+			);
+
+			if (!$content) {
+				continue;
+			}
+
+			$xmlparser = xml_parser_create();
+			xml_parse_into_struct($xmlparser, $content, $tags);
+			xml_parser_free($xmlparser);
+
+			$res = null;
+			foreach ($tags as $tag) {
+				switch ($tag['type']) {
+					case 'open':
+						if ($tag['tag'] === 'SEARCHRESULT') {
+							$fullName = '';
+							$link = '';
+							$title = '';
+							$wiki = '';
+							$type = '';
+						}
+						break;
+
+					case 'complete':
+						switch ($tag['tag']) {
+							case 'PAGEFULLNAME':
+								$fullName = $tag['value'];
+								break;
+
+							case 'TITLE':
+								$title = $tag['value'];
+								break;
+
+							case 'TYPE':
+								$type = $tag['value'];
+								break;
+
+							case 'WIKI':
+								$wiki = $tag['value'];
+								break;
+
+							case 'ID':
+								$id = $tag['value'];
+								break;
+
+							default: // ignore
+						}
+						break;
+
+					case 'close':
+						if ($tag['tag'] === 'SEARCHRESULT' && $type === 'page') {
+							$trimmedId = (
+								str_starts_with($id, 'xwiki:')
+									? substr($id, 6)
+									: $id
+							);
+
+							$url = (
+								$instanceCount > 1
+									? ($instance ->getPrettyName()  . ' - ')
+									: ''
+							);
+
+							$subline = $url . $trimmedId;
+
+							$results[] = new SearchResultEntry(
+								'',
+								$title,
+								$subline,
+								$integratedMode
+									? $this->urlGenerator->linkToRoute(
+										'xwiki.page.index',
+										[
+											'i' => $instance ->url,
+											'p' => $id,
+										]
+									)
+									: $instance->getLinkFromId($id),
+							   $this->urlGenerator->imagePath('xwiki', 'app-dark.svg')
+							);
+						}
+						break;
+
+					default: // ignore
+				}
+			}
+		}
+
+		return SearchResult::complete('XWiki', $results);
+	}
+}

lib/Settings/Admin.php

@@ -0,0 +1,41 @@
+<?php
+namespace OCA\Xwiki\Settings;
+
+use OCA\Xwiki\Controller\SettingsController;
+use OCA\Xwiki\Instance;
+use OCP\AppFramework\Http\TemplateResponse;
+use OCP\IConfig;
+use OCP\IL10N;
+use OCP\Settings\ISettings;
+
+class Admin implements ISettings {
+	private IL10N $l;
+	public SettingsController $settings;
+
+	public function __construct(SettingsController $settings, IL10N $l) {
+		$this->settings = $settings;
+		$this->l = $l;
+	}
+
+	/**
+	 * @return TemplateResponse
+	 */
+	public function getForm() {
+		return new TemplateResponse(
+			'xwiki',
+			'admin', [
+				'instances' => $this->settings->getInstances(),
+				'redirectUri' => $this->settings->getRedirectURL()
+			],
+			'blank'
+		);
+	}
+
+	public function getSection() {
+		return 'xwiki';
+	}
+
+	public function getPriority() {
+		return 50;
+	}
+}

lib/Settings/AdminSection.php

@@ -0,0 +1,34 @@
+<?php
+namespace OCA\Xwiki\Settings;
+
+use OCP\IURLGenerator;
+use OCP\Settings\IIconSection;
+
+class AdminSection implements IIconSection {
+	private IURLGenerator $urlGenerator;
+
+	public function __construct(IURLGenerator $urlGenerator) {
+		$this->urlGenerator = $urlGenerator;
+	}
+
+	public function getID() {
+		return 'xwiki';
+	}
+
+
+	public function getName() {
+		return 'XWiki';
+	}
+
+	public function getPriority() {
+		return 80;
+	}
+
+	/**
+	 * @return The relative path to a an icon describing the section
+	 */
+	public function getIcon() {
+//  		return 'apps/xwiki/img/app-dark.svg';
+		return $this->urlGenerator->imagePath('xwiki', 'app-dark.svg');
+	}
+}

lib/Settings/User.php

@@ -0,0 +1,50 @@
+<?php
+namespace OCA\Xwiki\Settings;
+
+use OCA\Xwiki\Controller\SettingsController;
+use OCA\Xwiki\Instance;
+use OCP\AppFramework\Http\TemplateResponse;
+use OCP\IConfig;
+use OCP\IL10N;
+use OCP\IRequest;
+use OCP\IURLGenerator;
+use OCP\Settings\ISettings;
+
+class User implements ISettings {
+	public SettingsController $config;
+	private IL10N $l;
+	private IRequest $request;
+	private IURLGenerator $urlGenerator;
+
+	public function __construct(SettingsController $config, IL10N $l, IRequest $request, IURLGenerator $urlGenerator) {
+		$this->config = $config;
+		$this->l = $l;
+		$this->urlGenerator = $urlGenerator;
+		$this->request = $request;
+	}
+
+	/**
+	 * @return TemplateResponse
+	 */
+	public function getForm() {
+		return new TemplateResponse(
+			'xwiki',
+			'usersettings', [
+				'instances' => $this->config->getInstances(),
+				'urlGenerator' => $this->urlGenerator,
+				'integratedMode' => $this->config->getFromUserJSON('integratedMode', 'false'),
+				'instanceUrl' => $this->request->getParam('i'),
+				'error' => $this->request->getParam('error')
+			],
+			'blank'
+		);
+	}
+
+	public function getSection() {
+		return 'xwiki';
+	}
+
+	public function getPriority() {
+		return 50;
+	}
+}

lib/Settings/UserSection.php

@@ -0,0 +1,35 @@
+<?php
+namespace OCA\Xwiki\Settings;
+
+use OCP\IURLGenerator;
+use OCP\Settings\IIconSection;
+
+class UserSection implements IIconSection {
+	/** @var IURLGenerator */
+	private $url;
+
+	public function __construct(IURLGenerator $url) {
+		$this->url = $url;
+	}
+
+	public function getID() {
+		return 'xwiki';
+	}
+
+
+	public function getName() {
+		return 'XWiki';
+	}
+
+	public function getPriority() {
+		return 80;
+	}
+
+	/**
+	 * @return The relative path to a an icon describing the section
+	 */
+	public function getIcon() {
+//  		return 'apps/xwiki/img/app-dark.svg';
+		return $this->url->imagePath('xwiki', 'app-dark.svg');
+	}
+}

lib/XWikiNotifier.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+namespace OCA\Xwiki;
+
+use OCP\IURLGenerator;
+use OCP\IL10N;
+use OCP\Notification\INotification;
+use OCP\Notification\INotifier;
+
+class XWikiNotifier implements INotifier {
+	private IL10N $l10n;
+	private IURLGenerator $urlGenerator;
+
+	public function __construct(IL10N $l10n, IURLGenerator $urlGenerator) {
+		$this->l10n = $l10n;
+		$this->urlGenerator = $urlGenerator;
+	}
+
+	public function getID(): string {
+		return 'xwiki';
+	}
+
+	public function getName(): string {
+		return $this->l10n->t('XWiki');
+	}
+
+	public function prepare(INotification $notification, string $languageCode): INotification {
+		if ($notification->getSubject() === 'new_wiki_added') {
+			$notification->setParsedSubject($this->l10n->t('New wiki added!'));
+			$notification->setParsedMessage($this->l10n->t('You can now search and browse pages from %s. If you have an account on this wiki, make sure to log in so you can search pages you have access to!', $notification->getSubjectParameters()));
+			$notification->setIcon($this->urlGenerator->imagePath('xwiki', 'app-dark.svg'));
+			$notification->setLink($this->urlGenerator->linkToRoute(
+				'settings.PersonalSettings.index',
+				['section' => 'xwiki']
+			));
+			return $notification;
+		}
+		throw new \InvalidArgumentException('Invalid subject');
+	}
+}

package.json

@@ -0,0 +1,49 @@
+{
+	"name": "xwiki",
+	"description": "XWiki Nextcloud Integration Application",
+	"version": "0.0.1",
+	"author": "Raphaël Jakse <raphael.jakse@xwiki.com>",
+	"contributors": [
+		"Raphaël Jakse <raphael.jakse@xwiki.com>"
+	],
+	"bugs": {
+		"url": "https://github.com/nextcloud/app-xwiki/issues"
+	},
+	"repository": {
+		"url": "https://github.com/nextcloud/app-xwiki",
+		"type": "git"
+	},
+	"homepage": "https://github.com/nextcloud/app-xwiki",
+	"license": "agpl",
+	"private": true,
+	"scripts": {
+		"build": "webpack --node-env production --progress",
+		"dev": "webpack --node-env development --progress",
+		"watch": "webpack --node-env development --progress --watch",
+		"serve": "webpack --node-env development serve --progress",
+		"lint": "eslint --ext .js,.vue src",
+		"lint:fix": "eslint --ext .js,.vue src --fix",
+		"stylelint": "stylelint css/*.css css/*.scss src/**/*.scss src/**/*.vue",
+		"stylelint:fix": "stylelint css/*.css css/*.scss src/**/*.scss src/**/*.vue --fix"
+	},
+	"dependencies": {
+		"@nextcloud/auth": "^1.3.0",
+		"@nextcloud/dialogs": "^3.1.4",
+		"@nextcloud/router": "^2.0.0"
+	},
+	"browserslist": [
+		"extends @nextcloud/browserslist-config"
+	],
+	"engines": {
+		"node": "^14.0.0",
+		"npm": "^7.0.0"
+	},
+	"devDependencies": {
+		"@babel/preset-typescript": "^7.18.6",
+		"@nextcloud/babel-config": "^1.0.0",
+		"@nextcloud/browserslist-config": "^2.2.0",
+		"@nextcloud/eslint-config": "^6.1.0",
+		"@nextcloud/stylelint-config": "^2.1.2",
+		"webpack-cli": "^4.10.0"
+	}
+}

phpunit.integration.xml

@@ -0,0 +1,7 @@
+<phpunit bootstrap="tests/bootstrap.php" colors="true">
+    <testsuites>
+        <testsuite name="integration">
+            <directory>./tests/Integration</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

phpunit.xml

@@ -0,0 +1,7 @@
+<phpunit bootstrap="tests/bootstrap.php" colors="true">
+    <testsuites>
+        <testsuite name="unit">
+            <directory>./tests/Unit</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

src/common.js

@@ -0,0 +1,23 @@
+import { getRequestToken } from '@nextcloud/auth'
+import { generateUrl } from '@nextcloud/router'
+
+export async function request(method, action, params) {
+  const response = await fetch(
+    generateUrl('/index.php/apps/xwiki/' + action),
+    {
+      method,
+      headers: {
+        requesttoken: getRequestToken()
+      },
+      ...params
+    }
+  );
+
+  try {
+    // return await is important to catch the error.
+    // Just return does not work.
+    return await response.json();
+  } catch (e) {
+    console.error(e);
+  }
+}

src/main.js

@@ -0,0 +1,40 @@
+import {
+	FilePicker,
+	FilePickerType,
+	showError,
+	showSuccess,
+} from '@nextcloud/dialogs'
+
+import { request } from './common';
+
+window.addEventListener('DOMContentLoaded', function () {
+	'use strict';
+
+	async function savePDF(e) {
+		e.preventDefault();
+		const targetPath = await new FilePicker(
+			t('xwiki', 'Where do you want to save the PDF?'),
+			false,
+			['httpd/unix-directory', 'application/pdf'],
+			true,
+			FilePickerType.Choose,
+			true
+		).pick();
+
+		const body = new FormData();
+		body.append('save_path', targetPath || '/');
+
+		const {instance, page} = e.target.dataset;
+		const response = await request('POST', 'savePDF?i=' + encodeURIComponent(instance) + '&p=' + encodeURIComponent(page), {body});
+		if (response?.ok) {
+			showSuccess(t('xwiki', 'The page has been successfully saved!'));
+		} else {
+			showError(t('xwiki', 'An error occurred while saving the page:') + ' ' + response?.error);
+		}
+
+	}
+
+	for (const link of document.querySelectorAll('.xwiki-save-pdf')) {
+		link.addEventListener('click', savePDF);
+	}
+});

src/settings.js

@@ -0,0 +1,343 @@
+/* global t */
+import { request } from './common';
+
+(function () {
+	'use strict';
+
+	function getParentLi(element) {
+		while (element && element.nodeName.toLowerCase() !== 'li') {
+			element = element.parentNode;
+		}
+
+		return element;
+	}
+
+	function handleInputChange({ currentTarget }) {
+		const li = getParentLi(currentTarget);
+		const urlInput = getUrlInput(li);
+		const clientIdInput = getClientIdInput(li);
+		const v = urlInput.value;
+
+		if (!v || (v === urlInput.dataset.initialValue && clientIdInput.value === clientIdInput.dataset.initialValue)) {
+			li.classList.remove('xwiki-admin-changed');
+		} else {
+			li.classList.add('xwiki-admin-changed');
+		}
+
+		if (currentTarget === urlInput) {
+			const pingResult = li.querySelector('.ping-result');
+			if (pingResult) {
+				pingResult.textContent = '';
+			}
+
+			const integrationResult = li.querySelector('.integration-result');
+			if (integrationResult) {
+				integrationResult.textContent = '';
+			}
+		}
+	}
+
+	function handleAddInstanceClick() {
+		const list = document.getElementById('xwiki-admin-instance-list');
+
+		// Prevent the user from adding spare inputs, this would expose
+		// limitations of the way the settings are saved (order cannot be
+		// guarenteed)
+		const penultimateLi = list.children[list.children.length - 2];
+		if (penultimateLi) {
+			const penultimateUrlInput = getUrlInput(penultimateLi);
+			if (!penultimateUrlInput.dataset.initialValue) {
+				penultimateUrlInput.focus();
+				return;
+			}
+		}
+
+		const lastLi = list.children[list.children.length - 1];
+		const newLi = lastLi.cloneNode(true);
+		newLi.hidden = false;
+		bindEventsToLI(newLi);
+		list.insertBefore(newLi, lastLi);
+		getUrlInput(newLi).focus();
+	}
+
+	function removeLi(li) {
+		li.remove();
+		if (!getLIs().length) {
+			handleAddInstanceClick();
+		}
+	}
+
+	async function handleRemoveInstanceClick({ currentTarget }) {
+		const li = getParentLi(currentTarget);
+		const url = getUrlInput(li).dataset.initialValue;
+		if (!url) {
+			removeLi(li);
+			return;
+		}
+
+		if (!confirm(t('xwiki', 'Are you sure you want to remove this instance?'))) {
+			return;
+		}
+
+		currentTarget.disabled = true;
+		currentTarget.textContent = '';
+		currentTarget.classList.remove('icon')
+		currentTarget.classList.remove('icon-delete');
+		currentTarget.append(
+			document.createElement('span'),
+			' ' + t('xwiki', 'Removing…')
+		);
+		currentTarget.firstChild.className = 'xwiki-span-icon icon icon-loading-small';
+
+		const body = new FormData();
+		body.append('url', url);
+
+		const result = await request('POST', 'settings/deleteInstance', { body });
+
+		if (result?.ok) {
+			li.remove();
+		} else {
+			alert(
+				t('xwiki', 'An error occured while removing the instance.') + (
+					result?.error
+						? ('\n' + (result.error || ''))
+						: (' ' + t('xwiki', 'Please try again later.'))
+				)
+			);
+		}
+	}
+
+	async function pingInstance(li) {
+		const pingResult = li.querySelector('.ping-result');
+		const integrationResult = li.querySelector('.integration-result');
+
+		pingResult.textContent = '';
+		pingResult.appendChild(document.createElement('span'));
+		pingResult.firstChild.className = 'icon icon-loading-small';
+		integrationResult.textContent = '';
+
+		const encodedURL = encodeURIComponent(getUrlInput(li).value);
+		const result = await request('GET', 'settings/pingInstance?url=' + encodedURL);
+		if (result?.ok) {
+			pingResult.textContent = '✓ (XWiki v' + result.version + ')';
+			pingResult.classList.remove('ping-failure');
+			pingResult.classList.add('ping-successful');
+			switch (result.hasNextcloudApplication) {
+				case true:
+					integrationResult.textContent = t('xwiki', 'This wiki has the Nextcloud application :-)');
+					break;
+				case false:
+					integrationResult.textContent = t('xwiki', 'This wiki does not have the Nextcloud application. Please install it!');
+					break;
+				case null:
+					integrationResult.textContent = t('xwiki', 'Please make sure the Nextcloud application is installed on this wiki.');
+					break;
+			}
+
+			return result.hasNextcloudApplication;
+		}
+
+		pingResult.textContent = '⚠ ' + t('xwiki', 'Could not reach this instance');
+		pingResult.classList.remove('ping-successful');
+		pingResult.classList.add('ping-failure');
+
+		return null;
+	}
+
+	async function handleSaveInstanceClick({ currentTarget }) {
+		const li = getParentLi(currentTarget);
+		const urlInput = getUrlInput(li);
+		const clientIdInput = getClientIdInput(li);
+
+		const initialURL = urlInput.dataset.initialValue;
+		let newURL = urlInput.value;
+
+		if (!newURL) {
+			return;
+		}
+
+		if (initialURL === newURL && clientIdInput.dataset.initialValue === clientIdInput.value) {
+			pingInstance(li);
+			return;
+		}
+
+		if (!newURL.endsWith('/')) {
+			newURL += '/';
+		}
+
+		if (!newURL.endsWith('/xwiki/') && !confirm(t('xwiki', 'The URL does not end with /xwiki/. It is uncommon, and this should probably be added. But some XWiki installations don’t have /xwiki/. Continue?'))) {
+			return;
+		}
+
+		const savingSpan = document.createElement('span');
+		savingSpan.append(document.createElement('span'), t('xwiki', 'Saving…'));
+		savingSpan.firstChild.className = 'xwiki-span-icon icon icon-loading-small';
+		savingSpan.style.minWidth = currentTarget.clientWidth + 'px';
+		savingSpan.style.display = 'inline-block';
+
+		currentTarget.parentNode.replaceChild(savingSpan, currentTarget);
+
+
+		const clientId = clientIdInput.value.trim();
+		const body = new FormData();
+		body.append('clientId', clientId);
+		body.append('notifyUsers', (clientId !== '' && confirm(t('xwiki', 'Do you want to notify users about this new instance?'))).toString());
+
+		let result;
+
+		if (initialURL) {
+			body.append('oldUrl', initialURL);
+			body.append('newUrl', newURL);
+			result = await request('POST', 'settings/replaceInstance', { body });
+		} else {
+			body.append('url', newURL);
+			result = await request('POST', 'settings/addInstance', { body });
+		}
+
+		if (result?.ok) {
+			urlInput.dataset.initialValue = urlInput.value = result.url;
+			clientIdInput.dataset.initialValue = clientIdInput.value = clientId;
+			handleInputChange({currentTarget: urlInput});
+			pingInstance(li);
+		} else {
+			alert(
+				t('xwiki', 'An error occured while saving the instance.') + (
+					result?.error
+						? ('\n' + (result.error || ''))
+						: (' ' + t('xwiki', 'Please try again later.'))
+				)
+			);
+		}
+
+		savingSpan.parentNode.replaceChild(currentTarget, savingSpan);
+	}
+
+	function getUrlInput(li) {
+		return li.querySelector('[name="instance-url"]');
+	}
+
+	function getClientIdInput(li) {
+		return li.querySelector('[name="instance-clientid"]');
+	}
+
+	function getLIs() {
+		const lis = document.getElementById('xwiki-admin-instance-list')?.children || [];
+
+		// We don't take the last <li> which is the hidden one used to create a
+		// new element and turn into a proper array that can be used in a
+		// for..of loop
+		return [].slice.call(lis, 0, lis.length - 1);
+	}
+
+	function handlePingInstanceClick({ currentTarget }) {
+		const li = getParentLi(currentTarget);
+		pingInstance(li);
+	}
+
+	async function handleGenerateClientIdClick({ currentTarget }) {
+		const li = getParentLi(currentTarget);
+		const result = await pingInstance(li);
+		switch (result) {
+			case null: {
+				if (!confirm(t('xwiki', 'We were unable to determine if the Nextcloud application is installed on this wiki. If it is not the case, you will reach a non-existing page. Continue?'))) {
+					break;
+				}
+				// the absence of break is intentional
+			}
+
+			case true: {
+				const urlInput = getUrlInput(li);
+				location.href = urlInput.dataset.initialValue + '/bin/view/Nextcloud/Admin/?redirect_uri=' + document.getElementById('xwiki-admin-instance-list').dataset.redirectUri;
+				break;
+			}
+
+			case false: {
+				alert(t('xwiki', 'The Nextcloud application is missing on this wiki. Please install it before you can generate the client ID.'));
+				break;
+			}
+
+			default: console.error('should not happen');
+		}
+	}
+
+	function bindEventsToLI(li) {
+		const urlInput = getUrlInput(li);
+		const clientIdInput = getClientIdInput(li);
+		urlInput.dataset.initialValue = urlInput.value;
+		clientIdInput.dataset.initialValue = clientIdInput.value;
+		urlInput.onchange = urlInput.oninput = clientIdInput.onchange = clientIdInput.oninput = handleInputChange;
+
+		const removeBtn = li.querySelector('.xwiki-admin-remove-instance-btn');
+		removeBtn.onclick = handleRemoveInstanceClick;
+
+		const saveBtn = li.querySelector('.xwiki-admin-save-instance-btn');
+		saveBtn.onclick = handleSaveInstanceClick;
+
+		const pingBtn = li.querySelector('.xwiki-admin-ping-instance-btn');
+		pingBtn.onclick = handlePingInstanceClick;
+
+		const generateClientIdBtn = li.querySelector('.xwiki-admin-generate-clientid-btn');
+		generateClientIdBtn.onclick = handleGenerateClientIdClick;
+
+		urlInput.onkeydown = function (e) {
+			if (e.key === 'Enter') {
+				saveBtn.click();
+			}
+		};
+		clientIdInput.onkeydown = function (e) {
+			if (e.key === 'Enter') {
+				saveBtn.click();
+			}
+		};
+	}
+
+	const addInstanceButton = document.getElementById('xwiki-add-instance-btn');
+	if (addInstanceButton)  {
+		addInstanceButton.onclick = handleAddInstanceClick;
+		for (const li of getLIs()) {
+			bindEventsToLI(li);
+		}
+	}
+
+	const integratedMode = document.getElementById('integrated-mode');
+	if (integratedMode) {
+		integratedMode.addEventListener('click', async function () {
+			const result = await request('POST', 'settings/setUserValue?k=integratedMode&v=' + integratedMode.checked);
+			if (!result?.ok) {
+				integratedMode.checked = !integratedMode.checked;
+				alert('Sorry, could not save the settings');
+			}
+		});
+	}
+
+	for (const getTokenBtn of document.getElementsByClassName('get-token')) {
+		getTokenBtn.addEventListener('click', async function (e) {
+			e.preventDefault();
+
+			const spin = document.createElement('span');
+			spin.className = 'xwiki-span-icon icon icon-loading-small';
+			e.target.parentNode.appendChild(spin);
+
+			const result = await request('GET', 'settings/pingInstance?url=' + new URL(e.target.href).searchParams.get('i'));
+			if (result?.ok) {
+				spin.remove();
+				switch (result.hasNextcloudApplication) {
+					case true:
+						location.href = e.target.href;
+						return;
+
+					case false:
+						alert(t('xwiki', 'This wiki does not have the Nextcloud application. This is needed to get access to it from Nextcloud. Please ask its administrator to install this extension.'));
+						return;
+
+					default:
+						break;
+				}
+			}
+
+			// fallback
+			alert(t('xwiki', 'We could not determine if this wiki has the Nextcloud application. This is needed to get access to it from Nextcloud. If you land on a non existing page, it means it is not installed, in which case please ask the administrator of the wiki to install this extension.'));
+			location.href = e.target.href;
+		});
+	}
+})();

stylelint.config.js

@@ -0,0 +1,3 @@
+const stylelintConfig = require('@nextcloud/stylelint-config')
+
+module.exports = stylelintConfig

templates/admin.php

@@ -0,0 +1,80 @@
+<?php
+script('xwiki', 'xwiki-settings');
+style('xwiki', 'style');
+// script('files', 'jquery.fileupload');
+
+use OCA\Xwiki\Instance;
+use OCP\IL10N;
+
+function showInstance(IL10N $l, Instance $instance, bool $hidden) {?>
+	<li<?php if ($hidden) { p(' hidden="hidden"'); }?>>
+		<p>
+			<label>
+				<?php p($l->t('URL:')); ?>
+				<input
+					type="text"
+					placeholder="https://xwiki.example.com"
+					name="instance-url"
+					autocomplete="on"
+					autocapitalize="none"
+					autocorrect="off"
+					value="<?php p($instance->url, ENT_QUOTES); ?>"
+				/>
+			</label>
+			<button
+				class="xwiki-admin-remove-instance-btn icon icon-delete"
+				aria-label="<?php p($l->t('Remove')); ?>"
+				title="<?php p($l->t('Remove')); ?>"
+			>
+			</button>
+		</p>
+		<p>
+			<label><?php p($l->t('Client ID:')); ?> <input type="text" value="<?php p($instance->clientId); ?>" name="instance-clientid" /></label>
+			<button class="xwiki-admin-generate-clientid-btn">
+				<?php p($l->t('Generate')); ?>
+			</button>
+		</p>
+		<p>
+			<button class="xwiki-admin-ping-instance-btn"><?php p($l->t('Check')); ?></button>
+			<button class="xwiki-admin-save-instance-btn">
+				<span class="icon icon-checkmark"></span>
+				<?php p($l->t('Save')); ?>
+			</button>
+			<span class="ping-result"></span>
+			<span class="integration-result"></span>
+		</p>
+	</li><?php
+}
+
+/** @var array $_ */
+$instances = $_['instances'];
+
+if (!is_array($instances)) {
+	p($instances);
+	$instances = [];
+}
+
+if (!count($instances)) {
+	$instances[] = Instance::$DUMMY;
+}
+
+?>
+<div class="settings-section">
+	<div class="section">
+		<h2 class="settings-section__title"><?php p($l->t('XWiki Instances')); ?></h2>
+		<p><?php p($l->t('You can add XWiki instances that users will be able to access from Nextcloud.')); ?></p>
+		<ul id="xwiki-admin-instance-list" data-redirect-uri="<?php p($_['redirectUri']);?>"><?php
+			foreach ($instances as $i) {
+				showInstance($l, $i, false);
+			}
+			showInstance($l, Instance::$DUMMY, true);
+		?></ul>
+		<button id="xwiki-add-instance-btn">
+			<span class="icon icon-add"></span>
+			<?php p($l->t('Add')); ?>
+		</button>
+		<p>
+			<?php p($l->t('Note: client IDs will allow Nextcloud users to log in to XWiki instances and have personalized search result. Administrators of XWiki instance can generate a Client ID with the XWiki Nextcloud application which can be installed using the extension manager.')); ?>
+		</p>
+	</div>
+</div>

templates/content/index.php

@@ -0,0 +1,137 @@
+<?php script('xwiki', 'xwiki-main'); ?>
+<section id="xwiki-app-content"><?php
+	if ($_['integratedMode'] && !empty($_['currentPage']) && !empty($_['currentInstance'])) { ?>
+		<div id="xwiki-top">
+			<ul id="xwiki-breadcrumbs">
+				<?php
+					[$wiki, $page]  = explode(':', $_['currentPage'], 2);
+					$homePage = $wiki . ':Main';
+					$pageParts = \OCA\Xwiki\Instance::getPageParts($page);
+					$breadcrumbsPage = $wiki . ':';
+				?>
+				<li>
+					<a href="<?php
+						p($_['urlGenerator']->linkToRoute('xwiki.page.index', [
+							'i' => $_['currentInstance']->url,
+							'p' => $homePage,
+						]));
+					?>">
+						<span class="icon-xwiki"></span>
+						<span><?php
+							p($_['currentInstance']->getPrettyName());
+						?></span>
+					</a>
+				</li><?php
+					$first = true;
+					foreach ($pageParts as $pagePart) {
+						if ($first) {
+							$first = false;
+						} else {
+							$breadcrumbsPage .= '.';
+						}
+						$breadcrumbsPage .= $pagePart;
+						if ($breadcrumbsPage !== $homePage) {
+							?><li><a href="<?php p(
+								rawurlencode(
+									p($_['urlGenerator']->linkToRoute('xwiki.page.index', [
+										'i' => $_['currentInstance']->url,
+										'p' => $breadcrumbsPage,
+									]))
+								)
+							); ?>" title="<?php p($pagePart); ?>"><?php p(
+								$pagePart
+							); ?></a></li><?php
+						}
+					}
+				?>
+			</ul>
+			<ul id="xwiki-actions">
+				<li>
+					<a href="<?php p($_['xwikiURL']); ?>" title="View at <?php p($_['xwikiInstance']); ?>">
+						<span class="icon icon-external"></span>
+						View
+					</a>
+				</li>
+				<li>
+					<a href="<?php p($_['xwikiEditURL']); ?>" title="Edit on <?php p($_['xwikiInstance']); ?>">
+						<span class="icon icon-edit"></span>
+						Edit
+					</a>
+				</li>
+				<li>
+					<a
+						class="xwiki-save-pdf"
+						href="<?php p($_['xwikiExportPDFURL']); ?>"
+						data-instance="<?php p($_['currentInstance']->url); ?>"
+						data-page="<?php p($_['currentPage']); ?>"
+					>
+						<span class="icon icon-file"></span>
+						Save as PDF
+					</a>
+				</li>
+			</ul>
+		</div><?php
+	} ?>
+	<div id="xwiki-content"><?php
+		if (!empty($_['title'])) { ?>
+			<h2><?php p($_['title']); ?></h2>
+		<?php }
+
+		if (empty($_['content'])) { ?>
+			<h2> XWiki </h2><?php
+		} else { ?>
+			<section>
+				<?php print_unescaped($_['content']); ?>
+			</section>
+		<?php } ?>
+		<?php
+		if (empty($_['instances'])) {
+			?><p><?php
+			p($l->t('With the XWiki app, you will be able to search and display XWiki content.'));
+			p($l->t('No wikis are registered yet. Please ask your administrator to add some.'));
+			?></p><?php
+		} else if (empty($_['content'])) { ?>
+			<p><?php
+				p($l->t('Click on the search button at the top right of the screen and start typing to search XWiki content.'))
+			?></p><p><?php
+				p($l->t('You will be able to see results from the following wikis:'));
+			?></p>
+			<ul><?php
+			$atLeastOneInstanceAsGuest = false;
+			foreach ($_['instances'] as $instance) {?>
+				<li>
+					<strong>
+						<span class="icon icon-xwiki"></span>
+						<?php p($instance->getPrettyName()); ?>
+					</strong>
+					<?php
+						if (empty($instance->token)) {
+							p($l->t('(not signed in)'));
+							$atLeastOneInstanceAsGuest = true;
+						}
+					?>
+				</li><?php
+			} ?>
+			</ul>
+			<p><?php
+				if ($atLeastOneInstanceAsGuest) {
+					p($l->t('Sign in to these wikis to be able to see personalized results.'));
+					print_unescaped(" " . $l->t(
+						"You can do so in the <a href='%s'>XWiki settings</a>.",
+						[$_['urlGenerator']->linkToRoute('settings.PersonalSettings.index', ['section' => 'xwiki'])]
+					));
+				}
+			?></p>
+			<p><?php
+				if ($_['integratedMode']) {
+					p($l->t('You can start browsing XWiki content using the menu on the left.'));
+					p(' ' . $l->t('Note that this feature is still experimental and some bugs can show up. Please report any issue you find. Feedback welcome.'));
+				} else {
+					p($l->t('To browse XWiki content from here, please enable the integrated mode.'));
+				}
+			?></p><p><?php
+				p($l->t('Do you want to access another wiki from Nextcloud? Please ask your administrator to add it!'));
+			?></p><?php
+		} ?>
+	</div>
+</section>

templates/index.php

@@ -0,0 +1,15 @@
+<?php
+script('xwiki', 'script');
+style('xwiki', 'style');
+
+if ($_['integratedMode']) { ?>
+<div id="app-navigation">
+	<?php print_unescaped($this->inc('navigation/index')); ?>
+	<?php print_unescaped($this->inc('settings/index')); ?>
+</div><?php
+} ?>
+<div id="app-content">
+	<div id="app-content-wrapper">
+		<?php print_unescaped($this->inc('content/index')); ?>
+	</div>
+</div>

templates/navigation/index.php

@@ -0,0 +1,34 @@
+<?php if ($_['integratedMode']) { ?>
+<ul id="xwiki-nav"><?php
+if (count($_['instances']) > 1) {?>
+	<?php
+		foreach ($_['instances'] as $instance) {?>
+			<li>
+				<a href="<?php p($_['urlGenerator']->linkToRoute('xwiki.page.index', [
+					'i' => $instance->url,
+					'p' => 'xwiki:Main',
+				]));?>">
+					<span class="icon icon-xwiki"></span>
+					<?php p($instance->getPrettyName());?>
+				</a><?php
+				if ($_['currentInstance']->url === $instance->url && !empty($_['pages'])) {?>
+					<ul><?php
+						foreach ($_['pages'] as $page) {?>
+							<li>
+								<a href="<?php p($page['url']); ?>">
+									<span class="icon icon-xwiki-page"></span>
+									<?php
+										p($page['title']);
+									?>
+								</a>
+							</li><?php
+						}
+					?>
+					</ul><?php
+				} ?>
+			</li><?php
+		} ?>
+	<?php
+} ?>
+</ul>
+<?php } ?>

templates/settings/index.php

@@ -0,0 +1,10 @@
+<!--<div id="app-settings">
+	<div id="app-settings-header">
+		<button class="settings-button"
+				data-apps-slide-toggle="#app-settings-content"
+		></button>
+	</div>
+	<div id="app-settings-content">
+		Your settings in here
+	</div>
+</div>-->

templates/usersettings.php

@@ -0,0 +1,120 @@
+<?php
+style('xwiki', 'style');
+script('xwiki', 'xwiki-settings');
+
+/** @var array $_ */
+$instances = $_['instances'];
+
+if (!is_array($instances)) {
+	p($instances);
+	$instances = [];
+}
+?>
+
+<div class="section">
+	<h2 class="settings-section__title"><?php p($l->t('Preferences')); ?></h2>
+	<p class="settings-section__desc"><?php
+		p($l->t("By default, you are redirected to XWiki whenever you click on a search result. If you enable the integrated mode, XWiki results will be displayed within Nextcloud. This can lead to a more seamless experience, but this mode is experimental and there can be display issues."));
+	?></p>
+
+	<p class="p-input">
+		<input
+			type="checkbox"
+			class="checkbox"
+			name="integrated-mode"
+			id="integrated-mode"
+			<?php if ($_['integratedMode']) { p(' checked="checked"');} ?>
+		/>
+		<label for="integrated-mode"><?php p($l->t('Integrated mode (experimental)')); ?></label>
+	</p>
+</div>
+
+<?php
+use OCA\Xwiki\Instance;
+use OCP\IL10N;
+
+function showInstance(IL10N $l, Instance $instance, $_) {
+	?>
+	<tr>
+		<td>
+			<a href="<?php p($instance->url, ENT_QUOTES); ?>" target="_blank" rel="noopener"><?php
+				p($instance->getPrettyName());
+			?></a>
+		</td>
+		<td><?php
+			if (empty($instance->token)) {
+				if (empty($instance->clientId)) {
+					p($l->t('Please ask your administrator to set up this instance to get access.'));
+				} else if ($_['instanceUrl'] === $instance->url && !empty($_['error'])) {
+					?><span class="xwiki-error"><?php
+					p($l->t('An error happened while getting access to this wiki.'));
+					if ($_['error'] === 'unauthorized_client') {
+						p(' ' . $l->t('Please ask its administrator to register this Nextcloud instance.'));
+					} else if ($_['error'] === 'access_denied') {
+						p(' ' . $l->t('You cancelled the access.'));
+					} else if ($_['error'] === 'missing_access_token') {
+						p(' ' . $l->t('XWiki didn’t provide an access token.'));
+					}
+					?></span><?php
+				} else { ?>
+					<a
+						class="get-token link-button"
+						href="<?php rawurlencode(
+							p($_['urlGenerator']->linkToRoute('xwiki.settings.requestToken', [
+								'i' => $instance->url,
+								'requesttoken' => $_['requesttoken']
+							]))
+						); ?>"
+					>
+						<?php p($l->t('Get access')); ?>
+					</a><?php
+				}
+			} else { ?>
+				<form action="<?php p(
+					rawurlencode(
+						p($_['urlGenerator']->linkToRoute('xwiki.settings.deleteToken', [
+							'i' => $instance->url,
+							'requesttoken' => $_['requesttoken']
+						]))
+					)
+				); ?>" method="post">
+					<input type="hidden" name="requesttoken" value="<?php p($_['requesttoken']); ?>" />
+					<button name="delete_token" value="true"><?php p($l->t('Log out')); ?></button>
+				</form>
+			<?php }?>
+		</td>
+	</tr><?php
+}
+
+?>
+<div class="section">
+	<h2 class="settings-section__title"><?php
+		p($l->t('Wikis and Access'));
+	?></h2>
+	<p class="settings-section__desc"><?php
+		p($l->t('When you search something, Nextcloud will fetch results from the following wikis. By default, Nextcloud is not logged to these wikis, so results will be what guests see.'));
+	?></p>
+	<p class="settings-section__desc"><?php
+		p($l->t('If you have an XWiki account, you can click on “Get access” so Nextcloud will be able to give you results for the things you can access.'));
+	?></p>
+	<?php if (count($instances)) { ?>
+		<table id="xwiki-user-settings-instance-table">
+			<tr>
+				<th><?php p($l->t('URL')); ?></th>
+				<th><?php p($l->t('Access')); ?></th>
+			</tr>
+			<?php
+				foreach ($instances as $instance) {
+					showInstance($l, $instance, $_);
+				}
+			?>
+		</table>
+		<p>
+			<?php p($l->t('Do you want to access another wiki from Nextcloud? Please ask your administrator to add it!')); ?>
+		</p>
+	<?php } else { ?>
+		<p>
+			<?php p($l->t('No wikis are registered yet. Please ask your administrator to add some.')); ?>
+		</p>
+	<?php }?>
+</div>

tests/Integration/AppTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace OCA\Xwiki\Tests\Integration\Controller;
+
+use OCP\AppFramework\App;
+use Test\TestCase;
+
+
+/**
+ * This test shows how to make a small Integration Test. Query your class
+ * directly from the container, only pass in mocks if needed and run your tests
+ * against the database
+ */
+class AppTest extends TestCase {
+
+    private $container;
+
+    public function setUp() {
+        parent::setUp();
+        $app = new App('xwiki');
+        $this->container = $app->getContainer();
+    }
+
+    public function testAppInstalled() {
+        $appManager = $this->container->query('OCP\App\IAppManager');
+        $this->assertTrue($appManager->isInstalled('xwiki'));
+    }
+
+}

tests/Unit/Controller/PageControllerTest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace OCA\Xwiki\Tests\Unit\Controller;
+
+use PHPUnit_Framework_TestCase;
+
+use OCP\AppFramework\Http\TemplateResponse;
+
+use OCA\Xwiki\Controller\PageController;
+
+
+class PageControllerTest extends PHPUnit_Framework_TestCase {
+	private $controller;
+	private $userId = 'john';
+
+	public function setUp() {
+		$request = $this->getMockBuilder('OCP\IRequest')->getMock();
+
+		$this->controller = new PageController(
+			'xwiki', $request, $this->userId
+		);
+	}
+
+	public function testIndex() {
+		$result = $this->controller->index();
+
+		$this->assertEquals('index', $result->getTemplateName());
+		$this->assertTrue($result instanceof TemplateResponse);
+	}
+
+}

tests/bootstrap.php

@@ -0,0 +1,19 @@
+<?php
+
+if (!defined('PHPUNIT_RUN')) {
+    define('PHPUNIT_RUN', 1);
+}
+
+require_once __DIR__.'/../../../lib/base.php';
+
+// Fix for "Autoload path not allowed: .../tests/lib/testcase.php"
+\OC::$loader->addValidRoot(OC::$SERVERROOT . '/tests');
+
+// Fix for "Autoload path not allowed: .../xwiki/tests/testcase.php"
+\OC_App::loadApp('xwiki');
+
+if(!class_exists('PHPUnit_Framework_TestCase')) {
+    require_once('PHPUnit/Autoload.php');
+}
+
+OC_Hook::clear();

webpack.config.js

@@ -0,0 +1,68 @@
+const path = require('path')
+
+const TerserPlugin = require('terser-webpack-plugin')
+
+const appName = process.env.npm_package_name
+const buildMode = process.env.NODE_ENV
+const isDev = buildMode === 'development'
+
+module.exports = {
+	target: 'web',
+	devtool: isDev ? 'cheap-source-map' : 'source-map',
+	entry: {
+		main: path.resolve(path.join('src', 'main.js')),
+		settings: path.resolve(path.join('src', 'settings.js'))
+	},
+	output: {
+		path: path.resolve('./js'),
+		publicPath: path.join('/apps/', appName, '/js/'),
+		filename: `${appName}-[name].js?v=[contenthash]`,
+		chunkFilename: `${appName}-[name].js?v=[contenthash]`,
+		// Make sure sourcemaps have a proper path and do not
+		// leak local paths https://github.com/webpack/webpack/issues/3603
+		devtoolNamespace: appName,
+		devtoolModuleFilenameTemplate(info) {
+			const rootDir = process.cwd()
+			const rel = path.relative(rootDir, info.absoluteResourcePath)
+			return `webpack:///${appName}/${rel}`
+		},
+	},
+
+	devServer: {
+		hot: true,
+		host: '127.0.0.1',
+		port: 3000,
+		client: {
+			overlay: false,
+		},
+		devMiddleware: {
+			writeToDisk: true,
+		},
+		headers: {
+			'Access-Control-Allow-Origin': '*',
+		},
+	},
+
+	optimization: {
+		chunkIds: 'named',
+		splitChunks: {
+			automaticNameDelimiter: '-',
+		},
+		minimize: !isDev,
+		minimizer: [
+			new TerserPlugin({
+				terserOptions: {
+					output: {
+						comments: false,
+					}
+				},
+				extractComments: true,
+			}),
+		],
+	},
+
+	resolve: {
+		extensions: ['*', '.js'],
+		symlinks: false
+	},
+}