Init

9 files changed, 1327 insertions, 0 deletions

diff --git a/radicale_web/web/css/fonts.css b/radicale_web/web/css/fonts.css
new file mode 100644
index 0000000..297998e
--- /dev/null
+++ b/radicale_web/web/css/fonts.css
@@ -0,0 +1,12 @@
+@font-face {
+  font-family: 'Roboto';
+  font-style: normal;
+  font-weight: 300;
+  src: local('Roboto Light'), local('Roboto-Light'), url(fonts/Roboto-Light.woff2) format('woff2');
+}
+@font-face {
+  font-family: 'Roboto';
+  font-style: normal;
+  font-weight: 400;
+  src: local('Roboto'), local('Roboto-Regular'), url(fonts/Roboto-Light.woff2) format('woff2');
+}
diff --git a/radicale_web/web/css/fonts/COPYRIGHT.txt b/radicale_web/web/css/fonts/COPYRIGHT.txt
new file mode 100644
index 0000000..e69c54c
--- /dev/null
+++ b/radicale_web/web/css/fonts/COPYRIGHT.txt
@@ -0,0 +1 @@
+Copyright 2011 Google Inc. All Rights Reserved.
diff --git a/radicale_web/web/css/fonts/LICENSE.txt b/radicale_web/web/css/fonts/LICENSE.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/radicale_web/web/css/fonts/LICENSE.txt
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      any Contribution intentionally submitted for inclusion in the Work
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+      the terms of any separate license agreement you may have executed
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diff --git a/radicale_web/web/css/fonts/Roboto-Light.woff2 b/radicale_web/web/css/fonts/Roboto-Light.woff2
new file mode 100644
index 0000000..2882017
--- /dev/null
+++ b/radicale_web/web/css/fonts/Roboto-Light.woff2
diff --git a/radicale_web/web/css/fonts/Roboto-Regular.woff2 b/radicale_web/web/css/fonts/Roboto-Regular.woff2
new file mode 100644
index 0000000..f966196
--- /dev/null
+++ b/radicale_web/web/css/fonts/Roboto-Regular.woff2
diff --git a/radicale_web/web/css/icon.png b/radicale_web/web/css/icon.png
new file mode 100644
index 0000000..a9c9c04
--- /dev/null
+++ b/radicale_web/web/css/icon.png
diff --git a/radicale_web/web/css/main.css b/radicale_web/web/css/main.css
new file mode 100644
index 0000000..7b8330b
--- /dev/null
+++ b/radicale_web/web/css/main.css
@@ -0,0 +1,44 @@
+@import url(fonts.css);
+body { background: #e4e9f6; color: #424247; display: flex; flex-direction: column; font-family: Roboto, sans; font-size: 14pt; line-height: 1.4; margin: 0; min-height: 100vh; }
+
+a { color: inherit; }
+
+nav, footer { background: #a40000; color: white; padding: 0 20%; }
+nav ul, footer ul { display: flex; flex-wrap: wrap; margin: 0; padding: 0; }
+nav ul li, footer ul li { display: block; padding: 0 1em 0 0; }
+nav ul li a, footer ul li a { color: inherit; display: block; padding: 1em 0.5em 1em 0; text-decoration: inherit; transition: 0.2s; }
+nav ul li a:hover, nav ul li a:focus, footer ul li a:hover, footer ul li a:focus { color: black; outline: none; }
+
+header { background: url(logo.svg), linear-gradient(to bottom right, #050a02, black); background-position: 22% 45%; background-repeat: no-repeat; color: #efdddd; font-size: 1.5em; min-height: 250px; overflow: auto; padding: 3em 22%; text-shadow: 0.2em 0.2em 0.2em rgba(0, 0, 0, 0.5); }
+header > * { padding-left: 220px; }
+header h1 { font-size: 2.5em; font-weight: lighter; margin: 0.5em 0; }
+
+main { flex: 1; }
+
+section { padding: 0 20% 2em; }
+section:not(:last-child) { border-bottom: 1px dashed #ccc; }
+section h1 { background: linear-gradient(to bottom right, #050a02, black); color: #e5dddd; font-size: 2.5em; margin: 0 -33.33% 1em; padding: 1em 33.33%; }
+section h2, section h3, section h4 { font-weight: lighter; margin: 1.5em 0 1em; }
+
+article { border-top: 1px solid transparent; position: relative; margin: 3em 0; }
+article aside { box-sizing: border-box; color: #aaa; font-size: 0.8em; right: -30%; top: 0.5em; position: absolute; }
+article:before { border-top: 1px dashed #ccc; content: ""; display: block; left: -33.33%; position: absolute; right: -33.33%; }
+
+pre { border-radius: 3px; background: black; color: #d3d5db; margin: 0 -1em; overflow-x: auto; padding: 1em; }
+
+table { border-collapse: collapse; font-size: 0.8em; margin: auto; }
+table td { border: 1px solid #ccc; padding: 0.5em; }
+
+dl dt { margin-bottom: 0.5em; margin-top: 1em; }
+
+@media (max-width: 800px) { body { font-size: 12pt; }
+  header, section { padding-left: 2em; padding-right: 2em; }
+  nav, footer { padding-left: 0; padding-right: 0; }
+  nav ul, footer ul { justify-content: center; }
+  nav ul li, footer ul li { padding: 0 0.5em; }
+  nav ul li a, footer ul li a { padding: 1em 0; }
+  header { background-position: 50% 30px, 0 0; padding-bottom: 0; padding-top: 330px; text-align: center; }
+  header > * { margin: 0; padding-left: 0; }
+  section h1 { margin: 0 -0.8em 1.3em; padding: 0.5em 0; text-align: center; }
+  article aside { top: 0.5em; right: -1.5em; }
+  article:before { left: -2em; right: -2em; } }
diff --git a/radicale_web/web/fn.js b/radicale_web/web/fn.js
new file mode 100644
index 0000000..9e258e5
--- /dev/null
+++ b/radicale_web/web/fn.js
@@ -0,0 +1,963 @@
+/**
+ * This file is part of Radicale Web.
+ * Copyright © 2017 Unrud <unrud@openaliasbox.org>
+ *
+ * Radicale Web 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.
+ *
+ * Radicale Web 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 Radicale Web.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Server address (must not end with /)
+ * @const
+ * @type {string}
+ */
+var SERVER = (location.protocol + '//' + location.hostname +
+              (location.port ? ':' + location.port : '') +
+              location.pathname.replace(new RegExp("/+[^/]+/*(/index\.html?)?$"), ""));
+
+/**
+ * time between updates of collections.
+ * @const
+ */
+var UPDATE_INTERVAL = 10000;
+
+/**
+ * Regex to match and normalize color
+ * @const
+ */
+var COLOR_RE = new RegExp("^(#[0-9A-Fa-f]{6})(?:[0-9A-Fa-f]{2})?$");
+
+/**
+ * Escape string for usage in XML
+ * @param {string} s
+ * @return {string}
+ */
+function escape_xml(s) {
+    return (s
+            .replace("&", "&amp;")
+            .replace('"', "&quot;")
+            .replace("'", "&apos;")
+            .replace("<", "&lt;")
+            .replace(">", "&gt;"));
+}
+
+/**
+ * @enum {string}
+ */
+var CollectionType = {
+    PRINCIPAL: "PRINCIPAL",
+    ADDRESSBOOK: "ADDRESSBOOK",
+    CALENDAR_JOURNAL_TASKS: "CALENDAR_JOURNAL_TASKS",
+    CALENDAR_JOURNAL: "CALENDAR_JOURNAL",
+    CALENDAR_TASKS: "CALENDAR_TASKS",
+    JOURNAL_TASKS: "JOURNAL_TASKS",
+    CALENDAR: "CALENDAR",
+    JOURNAL: "JOURNAL",
+    TASKS: "TASKS",
+    is_subset: function(a, b) {
+        var components = a.split("_");
+        var i;
+        for (i = 0; i < components.length; i++) {
+            if (b.search(components[i]) === -1) {
+                return false;
+            }
+        }
+        return true;
+    },
+    union: function(a, b) {
+        if (a.search(this.ADDRESSBOOK) !== -1 || b.search(this.ADDRESSBOOK) !== -1) {
+            if (a && a !== this.ADDRESSBOOK || b && b !== this.ADDRESSBOOK) {
+                throw "Invalid union: " + a + " " + b;
+            }
+            return this.ADDRESSBOOK;
+        }
+        var union = "";
+        if (a.search(this.CALENDAR) !== -1 || b.search(this.CALENDAR) !== -1) {
+            union += (union ? "_" : "") + this.CALENDAR;
+        }
+        if (a.search(this.JOURNAL) !== -1 || b.search(this.JOURNAL) !== -1) {
+            union += (union ? "_" : "") + this.JOURNAL;
+        }
+        if (a.search(this.TASKS) !== -1 || b.search(this.TASKS) !== -1) {
+            union += (union ? "_" : "") + this.TASKS;
+        }
+        return union;
+    }
+}
+
+/**
+ * @constructor
+ * @struct
+ * @param {string} href Must always start and end with /.
+ * @param {CollectionType} type
+ * @param {string} displayname
+ * @param {string} description
+ * @param {string} color
+ */
+function Collection(href, type, displayname, description, color) {
+    this.href = href;
+    this.type = type;
+    this.displayname = displayname;
+    this.color = color;
+    this.description = description;
+}
+
+/**
+ * Find the principal collection.
+ * @param {string} user
+ * @param {string} password
+ * @param {function(?Collection, ?string)} callback Returns result or error
+ * @return {XMLHttpRequest}
+ */
+function get_principal(user, password, callback) {
+    var request = new XMLHttpRequest();
+    request.open("PROPFIND", SERVER, true, user, password);
+    request.onreadystatechange = function() {
+        if (request.readyState !== 4) {
+            return;
+        }
+        if (request.status === 207) {
+            var xml = request.responseXML;
+            var principal_element = xml.querySelector("*|multistatus:root > *|response:first-of-type > *|propstat > *|prop > *|current-user-principal > *|href");
+            var displayname_element = xml.querySelector("*|multistatus:root > *|response:first-of-type > *|propstat > *|prop > *|displayname");
+            if (principal_element) {
+                callback(new Collection(
+                    principal_element.textContent,
+                    CollectionType.PRINCIPAL,
+                    displayname_element ? displayname_element.textContent : "",
+                    "",
+                    ""), null);
+            } else {
+                callback(null, "Internal error");
+            }
+        } else {
+            callback(null, request.status + " " + request.statusText);
+        }
+    }
+    request.send('<?xml version="1.0" encoding="utf-8" ?>' +
+                 '<propfind xmlns="DAV:">' +
+                     '<prop>' +
+                         '<current-user-principal />' +
+                         '<displayname />' +
+                     '</prop>' +
+                 '</propfind>');
+    return request;
+}
+
+/**
+ * Find all calendars and addressbooks in collection.
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection
+ * @param {function(?Array<Collection>, ?string)} callback Returns result or error
+ * @return {XMLHttpRequest}
+ */
+function get_collections(user, password, collection, callback) {
+    var request = new XMLHttpRequest();
+    request.open("PROPFIND", SERVER + collection.href, true, user, password);
+    request.setRequestHeader("depth", "1");
+    request.onreadystatechange = function() {
+        if (request.readyState !== 4) {
+            return;
+        }
+        if (request.status === 207) {
+            var xml = request.responseXML;
+            var collections = [];
+            var responses = xml.querySelectorAll("*|multistatus:root > *|response");
+            var i;
+            for (i = 0; i < responses.length; i++) {
+                var response = responses[i];
+                var href_element = response.querySelector(":scope > *|href");
+                var resourcetype_element = response.querySelector(":scope > *|propstat > *|prop > *|resourcetype");
+                var displayname_element = response.querySelector(":scope > *|propstat > *|prop > *|displayname");
+                var calendarcolor_element = response.querySelector(":scope > *|propstat > *|prop > *|calendar-color");
+                var addressbookcolor_element = response.querySelector(":scope > *|propstat > *|prop > *|addressbook-color");
+                var calendardesc_element = response.querySelector(":scope > *|propstat > *|prop > *|calendar-description");
+                var addressbookdesc_element = response.querySelector(":scope > *|propstat > *|prop > *|addressbook-description");
+                var components_element = response.querySelector(":scope > *|propstat > *|prop > *|supported-calendar-component-set");
+                var href = href_element ? href_element.textContent : "";
+                var displayname = displayname_element ? displayname_element.textContent : "";
+                var type = "";
+                var color = "";
+                var description = "";
+                if (resourcetype_element) {
+                    if (resourcetype_element.querySelector(":scope > *|addressbook")) {
+                        type = CollectionType.ADDRESSBOOK;
+                        color = addressbookcolor_element ? addressbookcolor_element.textContent : "";
+                        description = addressbookdesc_element ? addressbookdesc_element.textContent : "";
+                    } else if (resourcetype_element.querySelector(":scope > *|calendar")) {
+                        if (components_element) {
+                            if (components_element.querySelector(":scope > *|comp[name=VEVENT]")) {
+                                type = CollectionType.union(type, CollectionType.CALENDAR);
+                            }
+                            if (components_element.querySelector(":scope > *|comp[name=VJOURNAL]")) {
+                                type = CollectionType.union(type, CollectionType.JOURNAL);
+                            }
+                            if (components_element.querySelector(":scope > *|comp[name=VTODO]")) {
+                                type = CollectionType.union(type, CollectionType.TASKS);
+                            }
+                        }
+                        color = calendarcolor_element ? calendarcolor_element.textContent : "";
+                        description = calendardesc_element ? calendardesc_element.textContent : "";
+                    }
+                }
+                // Quirks
+                if (href === (displayname ? "/" + displayname + "/" : "/")) {
+                    displayname = "";
+                }
+                var sane_color = color.trim();
+                if (sane_color) {
+                    var color_match = COLOR_RE.exec(sane_color);
+                    if (color_match) {
+                        sane_color = color_match[1];
+                    } else {
+                        sane_color = "";
+                    }
+                }
+                if (href.substr(-1) === "/" && href !== collection.href && type) {
+                    collections.push(new Collection(href, type, displayname, description, sane_color));
+                }
+            }
+            collections.sort(function(a, b) {
+                /** @type {string} */ var ca = a.displayname || a.href;
+                /** @type {string} */ var cb = b.displayname || b.href;
+                return ca.localeCompare(cb);
+            });
+            callback(collections, null);
+        } else {
+            callback(null, request.status + " " + request.statusText);
+        }
+    };
+    request.send('<?xml version="1.0" encoding="utf-8" ?>' +
+                 '<propfind xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns:CR="urn:ietf:params:xml:ns:carddav" xmlns:I="http://apple.com/ns/ical/" xmlns:INF="http://inf-it.com/ns/ab/">' +
+                     '<prop>' +
+                         '<resourcetype />' +
+                         '<displayname />' +
+                         '<I:calendar-color />' +
+                         '<INF:addressbook-color />' +
+                         '<C:calendar-description />' +
+                         '<C:supported-calendar-component-set />' +
+                         '<CR:addressbook-description />' +
+                     '</prop>' +
+                 '</propfind>');
+    return request;
+}
+
+/**
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection
+ * @param {function(?string)} callback Returns error or null
+ * @return {XMLHttpRequest}
+ */
+function delete_collection(user, password, collection, callback) {
+    var request = new XMLHttpRequest();
+    request.open("DELETE", SERVER + collection.href, true, user, password);
+    request.onreadystatechange = function() {
+        if (request.readyState !== 4) {
+            return;
+        }
+        if (200 <= request.status && request.status < 300) {
+            callback(null);
+        } else {
+            callback(request.status + " " + request.statusText);
+        }
+    };
+    request.send();
+    return request;
+}
+
+/**
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection
+ * @param {boolean} create
+ * @param {function(?string)} callback Returns error or null
+ * @return {XMLHttpRequest}
+ */
+function create_edit_collection(user, password, collection, create, callback) {
+    var request = new XMLHttpRequest();
+    request.open(create ? "MKCOL" : "PROPPATCH", SERVER + collection.href, true, user, password);
+    request.onreadystatechange = function() {
+        if (request.readyState !== 4) {
+            return;
+        }
+        if (200 <= request.status && request.status < 300) {
+            callback(null);
+        } else {
+            callback(request.status + " " + request.statusText);
+        }
+    };
+    var displayname = escape_xml(collection.displayname);
+    var calendar_color = "";
+    var addressbook_color = "";
+    var calendar_description = "";
+    var addressbook_description = "";
+    var resourcetype;
+    var components = "";
+    if (collection.type === CollectionType.ADDRESSBOOK) {
+        addressbook_color = escape_xml(collection.color + (collection.color ? "ff" : ""));
+        addressbook_description = escape_xml(collection.description);
+        resourcetype = '<CR:addressbook />';
+    } else {
+        calendar_color = escape_xml(collection.color + (collection.color ? "ff" : ""));
+        calendar_description = escape_xml(collection.description);
+        resourcetype = '<C:calendar />';
+        if (CollectionType.is_subset(CollectionType.CALENDAR, collection.type)) {
+            components += '<C:comp name="VEVENT" />';
+        }
+        if (CollectionType.is_subset(CollectionType.JOURNAL, collection.type)) {
+            components += '<C:comp name="VJOURNAL" />';
+        }
+        if (CollectionType.is_subset(CollectionType.TASKS, collection.type)) {
+            components += '<C:comp name="VTODO" />';
+        }
+    }
+    var xml_request = create ? "mkcol" : "propertyupdate";
+    request.send('<?xml version="1.0" encoding="UTF-8" ?>' +
+                 '<' + xml_request + ' xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns:CR="urn:ietf:params:xml:ns:carddav" xmlns:I="http://apple.com/ns/ical/" xmlns:INF="http://inf-it.com/ns/ab/">' +
+                     '<set>' +
+                         '<prop>' +
+                             (create ? '<resourcetype><collection />' + resourcetype + '</resourcetype>' : '') +
+                             '<C:supported-calendar-component-set>' + components + '</C:supported-calendar-component-set>' +
+                             '<displayname>' + displayname + '</displayname>' +
+                             '<I:calendar-color>' + calendar_color + '</I:calendar-color>' +
+                             '<INF:addressbook-color>' + addressbook_color + '</INF:addressbook-color>' +
+                             '<CR:addressbook-description>' + addressbook_description + '</CR:addressbook-description>' +
+                             '<C:calendar-description>' + calendar_description + '</C:calendar-description>' +
+                         '</prop>' +
+                     '</set>' +
+                 '</' + xml_request + '>');
+    return request;
+}
+
+/**
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection
+ * @param {function(?string)} callback Returns error or null
+ * @return {XMLHttpRequest}
+ */
+function create_collection(user, password, collection, callback) {
+    return create_edit_collection(user, password, collection, true, callback);
+}
+
+/**
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection
+ * @param {function(?string)} callback Returns error or null
+ * @return {XMLHttpRequest}
+ */
+function edit_collection(user, password, collection, callback) {
+    return create_edit_collection(user, password, collection, false, callback);
+}
+
+/**
+ * @interface
+ */
+function Scene() {}
+/**
+ * Scene is on top of stack and visible.
+ */
+Scene.prototype.show = function() {};
+/**
+ * Scene is no longer visible.
+ */
+Scene.prototype.hide = function() {};
+/**
+ * Scene is removed from scene stack.
+ */
+Scene.prototype.release = function() {};
+
+
+/**
+ * @type {Array<Scene>}
+ */
+var scene_stack = [];
+
+/**
+ * Push scene onto stack.
+ * @param {Scene} scene
+ * @param {boolean} replace Replace the scene on top of the stack.
+ */
+function push_scene(scene, replace) {
+    if (scene_stack.length >= 1) {
+        scene_stack[scene_stack.length - 1].hide();
+        if (replace) {
+            scene_stack.pop().release();
+        }
+    }
+    scene_stack.push(scene);
+    scene.show();
+}
+
+/**
+ * Remove scenes from stack.
+ * @param {number} index New top of stack
+ */
+function pop_scene(index) {
+    if (scene_stack.length - 1 <= index) {
+        return;
+    }
+    scene_stack[scene_stack.length - 1].hide();
+    while (scene_stack.length - 1 > index) {
+        var old_length = scene_stack.length;
+        scene_stack.pop().release();
+        if (old_length - 1 === index + 1) {
+            break;
+        }
+    }
+    if (scene_stack.length >= 1) {
+        var scene = scene_stack[scene_stack.length - 1];
+        scene.show();
+    } else {
+        throw "Scene stack is empty";
+    }
+}
+
+/**
+ * @constructor
+ * @implements {Scene}
+ */
+function LoginScene() {
+    var othis = this;
+    var html_scene = document.getElementById("loginscene");
+    var form = html_scene.querySelector("[name=form]");
+    var user_form = html_scene.querySelector("[name=user]");
+    var password_form = html_scene.querySelector("[name=password]");
+    var error_form = html_scene.querySelector("[name=error]");
+    var logout_view = document.getElementById("logoutview");
+    var logout_user_form = logout_view.querySelector("[name=user]");
+    var logout_btn = logout_view.querySelector("[name=link]");
+
+    /** @type {?number} */ var scene_index = null;
+    var user = "";
+    var error = "";
+    /** @type {?XMLHttpRequest} */ var principal_req = null;
+
+    function read_form() {
+        user = user_form.value;
+    }
+
+    function fill_form() {
+        user_form.value = user;
+        password_form.value = "";
+        error_form.textContent = error ? "Error: " + error : "";
+    }
+
+    function onlogin() {
+        try {
+            read_form();
+            var password = password_form.value;
+            if (user) {
+                error = "";
+                // setup logout
+                logout_view.style.display = "block";
+                logout_btn.onclick = onlogout;
+                logout_user_form.textContent = user;
+                // Fetch principal
+                var loading_scene = new LoadingScene();
+                push_scene(loading_scene, false);
+                principal_req = get_principal(user, password, function(collection, error1) {
+                    if (scene_index === null) {
+                        return;
+                    }
+                    principal_req = null;
+                    if (error1) {
+                        error = error1;
+                        pop_scene(scene_index);
+                    } else {
+                        // show collections
+                        var saved_user = user;
+                        user = "";
+                        var collections_scene = new CollectionsScene(
+                            saved_user, password, collection, function(error1) {
+                                error = error1;
+                                user = saved_user;
+                            });
+                        push_scene(collections_scene, true);
+                    }
+                });
+            } else {
+                error = "Username is empty";
+                fill_form();
+            }
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    function onlogout() {
+        try {
+            if (scene_index === null) {
+                return false;
+            }
+            user = "";
+            pop_scene(scene_index);
+        } catch (err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    this.show = function() {
+        this.release();
+        fill_form();
+        form.onsubmit = onlogin;
+        html_scene.style.display = "block";
+        user_form.focus();
+        scene_index = scene_stack.length - 1;
+    };
+    this.hide = function() {
+        read_form();
+        html_scene.style.display = "none";
+        form.onsubmit = null;
+    };
+    this.release = function() {
+        scene_index = null;
+        // cancel pending requests
+        if (principal_req !== null) {
+            principal_req.abort();
+            principal_req = null;
+        }
+        // remove logout
+        logout_view.style.display = "none";
+        logout_btn.onclick = null;
+        logout_user_form.textContent = "";
+    };
+}
+
+/**
+ * @constructor
+ * @implements {Scene}
+ */
+function LoadingScene() {
+    var html_scene = document.getElementById("loadingscene");
+    this.show = function() {
+        html_scene.style.display = "block";
+    };
+    this.hide = function() {
+        html_scene.style.display = "none";
+    };
+    this.release = function() {};
+}
+
+/**
+ * @constructor
+ * @implements {Scene}
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection The principal collection.
+ * @param {function(string)} onerror Called when an error occurs, before the
+ *                                   scene is popped.
+ */
+function CollectionsScene(user, password, collection, onerror) {
+    var othis = this;
+    var html_scene = document.getElementById("collectionsscene");
+    var template = html_scene.querySelector("[name=collectiontemplate]");
+    var new_btn = html_scene.querySelector("[name=new]");
+
+    /** @type {?number} */ var scene_index = null;
+    var saved_template_display = null;
+    /** @type {?XMLHttpRequest} */ var collections_req = null;
+    var timer = null;
+    /** @type {?Array<Collection>} */ var collections = null;
+    /** @type {Array<Node>} */ nodes = [];
+
+    function onnew() {
+        try {
+            var create_collection_scene = new CreateEditCollectionScene(user, password, collection);
+            push_scene(create_collection_scene, false);
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    function onedit(collection) {
+        try {
+            var edit_collection_scene = new CreateEditCollectionScene(user, password, collection);
+            push_scene(edit_collection_scene, false);
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    function ondelete(collection) {
+        try {
+            var delete_collection_scene = new DeleteCollectionScene(user, password, collection);
+            push_scene(delete_collection_scene, false);
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    function show_collections(collections) {
+        nodes.forEach(function(node) {
+            template.parentNode.removeChild(node);
+        });
+        nodes = [];
+        collections.forEach(function (collection) {
+            var node = template.cloneNode(true);
+            var title_form = node.querySelector("[name=title]");
+            var description_form = node.querySelector("[name=description]");
+            var url_form = node.querySelector("[name=url]");
+            var color_form = node.querySelector("[name=color]");
+            var delete_btn = node.querySelector("[name=delete]");
+            var edit_btn = node.querySelector("[name=edit]");
+            if (collection.color) {
+                color_form.style.color = collection.color;
+            } else {
+                color_form.style.display = "none";
+            }
+            var possible_types = [CollectionType.ADDRESSBOOK];
+            [CollectionType.CALENDAR, ""].forEach(function(e) {
+                [CollectionType.union(e, CollectionType.JOURNAL), e].forEach(function(e) {
+                    [CollectionType.union(e, CollectionType.TASKS), e].forEach(function(e) {
+                        if (e) {
+                            possible_types.push(e);
+                        }
+                    });
+                });
+            });
+            possible_types.forEach(function(e) {
+                if (e !== collection.type) {
+                    node.querySelector("[name=" + e + "]").style.display = "none";
+                }
+            });
+            title_form.textContent = collection.displayname || collection.href;
+            description_form.textContent = collection.description;
+            href = SERVER.replace("//", "//" + user + "@") + collection.href;
+            url_form.href = href;
+            url_form.textContent = href;
+            delete_btn.onclick = function(ev) {return ondelete(collection);};
+            edit_btn.onclick = function(ev) {return onedit(collection);};
+            node.style.display = saved_template_display;
+            nodes.push(node);
+            template.parentNode.insertBefore(node, template);
+        });
+    }
+
+    function update() {
+        if (collections === null) {
+            var loading_scene = new LoadingScene();
+            push_scene(loading_scene, false);
+        }
+        collections_req = get_collections(user, password, collection, function(collections1, error) {
+            if (scene_index === null) {
+                return;
+            }
+            collections_req = null;
+            if (error) {
+                onerror(error);
+                pop_scene(scene_index - 1)
+            } else {
+                var old_collections = collections;
+                collections = collections1;
+                timer = window.setTimeout(update, UPDATE_INTERVAL);
+                if (old_collections === null) {
+                    pop_scene(scene_index);
+                } else {
+                    show_collections(collections);
+                }
+            }
+        });
+    }
+
+    this.show = function() {
+        saved_template_display = template.style.display;
+        template.style.display = "none";
+        html_scene.style.display = "block";
+        new_btn.onclick = onnew;
+        if (scene_index === null) {
+            scene_index = scene_stack.length - 1;
+            if (collections === null && collections_req !== null) {
+                pop_scene(scene_index - 1);
+                return;
+            }
+            update();
+        } else if (collections === null) {
+            pop_scene(scene_index - 1);
+        } else {
+            if (timer !== null) {
+                show_collections(collections);
+            } else {
+                collections = null;
+                update();
+            }
+        }
+    };
+    this.hide = function() {
+        html_scene.style.display = "none";
+        template.style.display = saved_template_display;
+        new_btn.onclick = null;
+        if (timer !== null) {
+            window.clearTimeout(timer);
+            timer = null;
+        }
+        if (collections !== null && collections_req !== null) {
+            collections_req.abort();
+            collections_req = null;
+        }
+        show_collections([]);
+    };
+    this.release = function() {
+        scene_index = null;
+        if (collections_req !== null) {
+            collections_req.abort();
+            collections_req = null;
+        }
+    };
+}
+
+/**
+ * @constructor
+ * @implements {Scene}
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection
+ */
+function DeleteCollectionScene(user, password, collection) {
+    var html_scene = document.getElementById("deletecollectionscene");
+    var title_form = html_scene.querySelector("[name=title]");
+    var error_form = html_scene.querySelector("[name=error]");
+    var delete_btn = html_scene.querySelector("[name=delete]");
+    var cancel_btn = html_scene.querySelector("[name=cancel]");
+    var no_btn = html_scene.querySelector("[name=no]");
+
+    /** @type {?number} */ var scene_index = null;
+    /** @type {?XMLHttpRequest} */ var delete_req = null;
+    var error = "";
+
+    function ondelete() {
+        try {
+            var loading_scene = new LoadingScene();
+            push_scene(loading_scene);
+            delete_req = delete_collection(user, password, collection, function(error1) {
+                if (scene_index === null) {
+                    return;
+                }
+                delete_req = null;
+                if (error1) {
+                    error = error1;
+                    pop_scene(scene_index);
+                } else {
+                    pop_scene(scene_index - 1);
+                }
+            });
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    function oncancel() {
+        try {
+            pop_scene(scene_index - 1);
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    this.show = function() {
+        this.release();
+        scene_index = scene_stack.length - 1;
+        html_scene.style.display = "block";
+        title_form.textContent = collection.displayname || collection.href;
+        error_form.textContent = error ? "Error: " + error : "";
+        delete_btn.onclick = ondelete;
+        cancel_btn.onclick = oncancel;
+    };
+    this.hide = function() {
+        html_scene.style.display = "none";
+        cancel_btn.onclick = null;
+        delete_btn.onclick = null;
+    };
+    this.release = function() {
+        scene_index = null;
+        if (delete_req !== null) {
+            delete_req.abort();
+            delete_req = null;
+        }
+    };
+}
+
+/**
+ * Generate random hex number.
+ * @param {number} length
+ * @return {string}
+ */
+function randHex(length) {
+    var s = Math.floor(Math.random() * Math.pow(16, length)).toString(16);
+    while (s.length < length) {
+        s = "0" + s;
+    }
+    return s;
+}
+
+/**
+ * @constructor
+ * @implements {Scene}
+ * @param {string} user
+ * @param {string} password
+ * @param {Collection} collection if it's a principal collection, a new
+ *                                collection will be created inside of it.
+ *                                Otherwise the collection will be edited.
+ */
+function CreateEditCollectionScene(user, password, collection) {
+    var edit = collection.type !== CollectionType.PRINCIPAL;
+    var html_scene = document.getElementById(edit ? "editcollectionscene" : "createcollectionscene");
+    var title_form = edit ? html_scene.querySelector("[name=title]") : null;
+    var error_form = html_scene.querySelector("[name=error]");
+    var displayname_form = html_scene.querySelector("[name=displayname]");
+    var description_form = html_scene.querySelector("[name=description]");
+    var type_form = html_scene.querySelector("[name=type]");
+    var color_form = html_scene.querySelector("[name=color]");
+    var submit_btn = html_scene.querySelector("[name=submit]");
+    var cancel_btn = html_scene.querySelector("[name=cancel]");
+
+    /** @type {?number} */ var scene_index = null;
+    /** @type {?XMLHttpRequest} */ var create_edit_req = null;
+    var error = "";
+    /** @type {?Element} */ var saved_type_form = null;
+
+    var href = edit ? collection.href : (
+        collection.href + randHex(8) + "-" + randHex(4) + "-" + randHex(4) +
+        "-" + randHex(4) + "-" + randHex(12) + "/");
+    var displayname = edit ? collection.displayname : "";
+    var description = edit ? collection.description : "";
+    var type = edit ? collection.type : CollectionType.CALENDAR_JOURNAL_TASKS;
+    var color = edit && collection.color ? collection.color : "#" + randHex(6);
+
+    function remove_invalid_types() {
+        if (!edit) {
+            return;
+        }
+        /** @type {HTMLOptionsCollection} */ var options = type_form.options;
+        // remove all options that are not supersets
+        var i;
+        for (i = options.length - 1; i >= 0; i--) {
+            if (!CollectionType.is_subset(type, options[i].value)) {
+                options.remove(i);
+            }
+        }
+    }
+
+    function read_form() {
+        displayname = displayname_form.value;
+        description = description_form.value;
+        type = type_form.value;
+        color = color_form.value;
+    }
+
+    function fill_form() {
+        displayname_form.value = displayname;
+        description_form.value = description;
+        type_form.value = type;
+        color_form.value = color;
+        error_form.textContent = error ? "Error: " + error : "";
+    }
+
+    function onsubmit() {
+        try {
+            read_form();
+            var sane_color = color.trim();
+            if (sane_color) {
+                var color_match = COLOR_RE.exec(sane_color);
+                if (!color_match) {
+                    error = "Invalid color";
+                    fill_form();
+                    return false;
+                }
+                sane_color = color_match[1];
+            }
+            var loading_scene = new LoadingScene();
+            push_scene(loading_scene);
+            var collection = new Collection(href, type, displayname, description, sane_color);
+            var callback = function(error1) {
+                if (scene_index === null) {
+                    return;
+                }
+                create_edit_req = null;
+                if (error1) {
+                    error = error1;
+                    pop_scene(scene_index);
+                } else {
+                    pop_scene(scene_index - 1);
+                }
+            };
+            if (edit) {
+                create_edit_req = edit_collection(user, password, collection, callback);
+            } else {
+                create_edit_req = create_collection(user, password, collection, callback);
+            }
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    function oncancel() {
+        try {
+            pop_scene(scene_index - 1);
+        } catch(err) {
+            console.error(err);
+        }
+        return false;
+    }
+
+    this.show = function() {
+        this.release();
+        scene_index = scene_stack.length - 1;
+        // Clone type_form because it's impossible to hide options without removing them
+        saved_type_form = type_form;
+        type_form = type_form.cloneNode(true);
+        saved_type_form.parentNode.replaceChild(type_form, saved_type_form);
+        remove_invalid_types();
+        html_scene.style.display = "block";
+        if (edit) {
+            title_form.textContent = collection.displayname || collection.href;
+        }
+        fill_form();
+        submit_btn.onclick = onsubmit;
+        cancel_btn.onclick = oncancel;
+    };
+    this.hide = function() {
+        read_form();
+        html_scene.style.display = "none";
+        // restore type_form
+        type_form.parentNode.replaceChild(saved_type_form, type_form);
+        type_form = saved_type_form;
+        saved_type_form = null;
+        submit_btn.onclick = null;
+        cancel_btn.onclick = null;
+    };
+    this.release = function() {
+        scene_index = null;
+        if (create_edit_req !== null) {
+            create_edit_req.abort();
+            create_edit_req = null;
+        }
+    };
+}
+
+function main() {
+    push_scene(new LoginScene(), false);
+}
+
+window.addEventListener("load", main);
diff --git a/radicale_web/web/index.html b/radicale_web/web/index.html
new file mode 100644
index 0000000..adb1742
--- /dev/null
+++ b/radicale_web/web/index.html
@@ -0,0 +1,105 @@
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <meta charset="utf-8" />
+        <meta name="viewport" content="width=device-width initial-scale=1" />
+        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+        <script src="fn.js"></script>
+        <title>Web interface for Radicale</title>
+        <link href="css/main.css" media="screen" rel="stylesheet" />
+        <link href="css/icon.png" type="image/png" rel="shortcut icon" />
+    </head>
+    <body>
+        <nav>
+            <ul>
+                <li id="logoutview" style="display: none;"><a href="" name="link">Logout [<span name="user"></span>]</a></li>
+            </ul>
+        </nav>
+        <section id="loginscene" style="display: none;">
+            <h1>Login</h1>
+            <form name="form">
+                <input name="user" type="text" placeholder="Username"><br>
+                <input name="password" type="password" placeholder="Password"><br>
+                <span style="color: #A40000;" name="error"></span><br>
+                <button type="submit">Next</button>
+            </form>
+        </section>
+        <section id="loadingscene" style="display: none;">
+            <h1>Loading</h1>
+            Please wait...
+        </section>
+        <section id="collectionsscene" style="display: none;">
+            <h1>Collections</h1>
+            <a href="" name="new">Create new addressbook or calendar</a>
+            <article name="collectiontemplate">
+                <h2><span name="color">█ </span><span name="title">Title</span> <small>[<span name="ADDRESSBOOK">addressbook</span><span name="CALENDAR_JOURNAL_TASKS">calendar, journal and tasks</span><span name="CALENDAR_JOURNAL">calendar and journal</span><span name="CALENDAR_TASKS">calendar and tasks</span><span name="JOURNAL_TASKS">journal and tasks</span><span name="CALENDAR">calendar</span><span name="JOURNAL">journal</span><span name="TASKS">tasks</span>]</small></h2>
+                <span name="description">Description</span>
+                <ul>
+                    <li>URL: <a name="url">url</a></li>
+                    <li><a href="" name="edit">Edit</a></li>
+                    <li><a href="" name="delete">Delete</a></li>
+                </ul>
+            </article>
+        </section>
+        <section id="editcollectionscene" style="display: none;">
+            <h1>Edit collection</h1>
+            <h2>Edit <span name="title">title</span>:</h2>
+            <form>
+                Title:<br>
+                <input name="displayname" type="text"><br>
+                Description:<br>
+                <input name="description" type="text"><br>
+                Type:<br>
+                <select name="type">
+                    <option value="ADDRESSBOOK">addressbook</option>
+                    <option value="CALENDAR_JOURNAL_TASKS">calendar, journal and tasks</option>
+                    <option value="CALENDAR_JOURNAL">calendar and journal</option>
+                    <option value="CALENDAR_TASKS">calendar and tasks</option>
+                    <option value="JOURNAL_TASKS">journal and tasks</option>
+                    <option value="CALENDAR">calendar</option>
+                    <option value="JOURNAL">journal</option>
+                    <option value="TASKS">tasks</option>
+                </select><br>
+                Color:<br>
+                <input name="color" type="color"><br>
+                <span style="color: #A40000;" name="error"></span><br>
+                <button type="submit" name="submit">Save</button>
+                <button type="button" name="cancel">Cancel</button>
+            </form>
+        </section>
+        <section id="createcollectionscene" style="display: none;">
+            <h1>Create new collection</h1>
+            <form>
+                Title:<br>
+                <input name="displayname" type="text"><br>
+                Description:<br>
+                <input name="description" type="text"><br>
+                Type:<br>
+                <select name="type">
+                    <option value="ADDRESSBOOK">addressbook</option>
+                    <option value="CALENDAR_JOURNAL_TASKS">calendar, journal and tasks</option>
+                    <option value="CALENDAR_JOURNAL">calendar and journal</option>
+                    <option value="CALENDAR_TASKS">calendar and tasks</option>
+                    <option value="JOURNAL_TASKS">journal and tasks</option>
+                    <option value="CALENDAR">calendar</option>
+                    <option value="JOURNAL">journal</option>
+                    <option value="TASKS">tasks</option>
+                </select><br>
+                Color:<br>
+                <input name="color" type="color"><br>
+                <span style="color: #A40000;" name="error"></span><br>
+                <button type="submit" name="submit">Create</button>
+                <button type="button" name="cancel">Cancel</button>
+            </form>
+        </section>
+        <section id="deletecollectionscene" style="display: none;">
+            <h1>Delete collection</h1>
+            <h2>Delete <span name="title">title</span>?</h2>
+            <span style="color: #A40000;" name="error"></span><br>
+            <form>
+                <button type="button" name="delete">Yes</button>
+                <button type="button" name="cancel">No</button>
+            </form>
+        </section>
+    </body>
+</html>