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<article itemscope itemtype="http://schema.org/Article"><div class="article__header"><header><h1 style="color:Tomato;">KVM4-Bureau-distant-XFCE-sur-ubuntu16.04</h1></header></div><meta itemprop="headline" content="KVM4-Bureau-distant-XFCE-sur-ubuntu16.04"><div class="article__info clearfix"><ul class="left-col menu"><li>
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<i class="far fa-calendar-alt"></i>&nbsp;<span title="Création" style="color:#FF00FF">25&nbsp;déc.&nbsp;&nbsp;2019</span>
<span title="Modification" style="color:#00FF7F">23&nbsp;nov.&nbsp;&nbsp;2018</span></li></ul></div><meta itemprop="datePublished" content="2018-11-23T00:00:00+01:00">
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<summary><b>Afficher/cacher Sommaire</b></summary>
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</details><h2 id="kvm-ubuntu-1604-server--xfce--vnc">KVM Ubuntu 16.04 Server + Xfce + Vnc</h2>
<p><em>Créer un bureau distant XFCE sur une installation Ubuntu 16.04 Server avec une connexion VNC via tunnel SSH</em></p>
<p>Serveur VPS vps-26381<br />
Distribution : Ubuntu 16.04</p>
<h3 id="créer-un-utilisateur">Créer un utilisateur</h3>
<p>Se connecter en SSH<br />
<code class="language-plaintext highlighter-rouge">ssh root@93.115.96.97</code><br />
Ajouter un utilisateur <strong>ubun</strong><br />
<code class="language-plaintext highlighter-rouge">adduser ubun</code><br />
Ajout au groupe sudo<br />
<code class="language-plaintext highlighter-rouge">usermod -aG sudo ubun</code><br />
Basculer sur le compte utilisateur<br />
<code class="language-plaintext highlighter-rouge">su - ubun</code><br />
Tester sudo<br />
<code class="language-plaintext highlighter-rouge">sudo -s</code> mot de passe utilisateur à saisir<br />
Basculement sans mot de passe
<code class="language-plaintext highlighter-rouge">echo "ubun ALL=(ALL) NOPASSWD: ALL" &gt;&gt; /etc/sudoers</code></p>
<h3 id="ssh-via-clé">SSH via clé</h3>
<p><u>sur l'ordinateur de bureau</u>
Générer une paire de clé curve25519-sha256 (ECDH avec Curve25519 et SHA2) nommé <strong>kvm-vps-26381</strong> pour une liaison SSH avec le serveur KVM.<br />
<code class="language-plaintext highlighter-rouge">ssh-keygen -t ed25519 -o -a 100 -f ~/.ssh/kvm-vps-26381</code><br />
Envoyer la clé publique sur le serveur KVM <br />
<code class="language-plaintext highlighter-rouge">scp ~/.ssh/kvm-vps-26381.pub ubun@93.115.96.97:/home/ubun/</code></p>
<p><u>sur le serveur KVM</u>
On se connecte<br />
<code class="language-plaintext highlighter-rouge">ssh ubun@93.115.96.97</code><br />
Copier le contenu de la clé publique dans /home/$USER/.ssh/authorized_keys<br />
<code class="language-plaintext highlighter-rouge">$ cd ~</code><br />
Sur le KVM ,créer un dossier .ssh et copier la clé publique</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>pwd #pour vérifier que l'on est sous /home/$USER
mkdir .ssh
cat /home/$USER/kvm-vps-26381.pub &gt;&gt; /home/$USER/.ssh/authorized_keys
</code></pre></div></div>
<p>et donner les droits<br />
<code class="language-plaintext highlighter-rouge">chmod 600 /home/$USER/.ssh/authorized_keys</code><br />
effacer le fichier de la clé<br />
<code class="language-plaintext highlighter-rouge">rm /home/$USER/kvm-vps-26381.pub</code><br />
Modifier la configuration serveur SSH<br />
<code class="language-plaintext highlighter-rouge">sudo nano /etc/ssh/sshd_config</code><br />
Modifier</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>Port = 55026
PermitRootLogin no
PasswordAuthentication no
</code></pre></div></div>
<p>Relancer openSSH<br />
<code class="language-plaintext highlighter-rouge">sudo systemctl restart sshd</code></p>
<p>Accès depuis le poste distant avec la clé privée<br />
<code class="language-plaintext highlighter-rouge">$ ssh -p 55026 -i ~/.ssh/kvm-vps-26381 ubun@93.115.96.97</code><br />
Changer le mot de passe <strong>root</strong></p>
<h3 id="connexion-bureau-distant-ubuntu-1604-via-vnc">Connexion bureau distant Ubuntu 16.04 via vnc</h3>
<p><a href="https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-16-04">How to Install and Configure VNC on Ubuntu 16.04 16.04</a><br />
<a href="http://www.monlinux.net/2014/03/securiser-une-connexion-vnc/">Sécuriser une connexion VNC via SSH</a></p>
<p><em>On dispose dun serveur Ubuntu 16.04 joignable par connexion SSH, on installe un bureau XFCE et un serveur VNC</em></p>
<h4 id="etape-1---installer-environnement-bureau-xfce-et-le-serveur-vnc">Etape 1 - Installer environnement bureau XFCE et le serveur VNC</h4>
<p>Installer le package TightVNC disponible dans le dépôt officiel dUbuntu 16.04.<br />
<code class="language-plaintext highlighter-rouge">sudo apt install xfce4 xfce4-goodies tightvncserver</code><br />
Lancer le serveur pour créer le mot de passe<br />
<code class="language-plaintext highlighter-rouge">vncserver</code></p>
<h4 id="etape-2---configurer-le-serveur-vnc">Etape 2 - Configurer le serveur VNC</h4>
<p>Tout dabord, nous devons indiquer à notre serveur VNC quelles commandes effectuer lors de son démarrage. Ces commandes sont situées dans un fichier de configuration appelé <strong>xstartup</strong> dans le dossier <strong>.vnc</strong> sous votre répertoire personnel.<br />
Le script de démarrage a été créé lorsque vous avez exécuté vncserver à létape précédente, mais nous avons besoin de modifier certaines des commandes pour le bureau Xfce.<br />
Lorsque VNC est configuré pour la première fois, il lance une instance de serveur par défaut sur le port 5901. Ce port sappelle un port daffichage et est désigné par VNC comme <strong>:1</strong>. VNC peut lancer plusieurs instances sur dautres ports daffichage, comme <strong>:2</strong>,<strong>:3</strong>, etc. Lorsque vous travaillez avec des serveurs VNC, rappelez-vous que <strong>:X</strong> est un port daffichage qui fait référence à <strong>5900+X</strong>.</p>
<p>Parce que nous allons modifier la configuration du serveur VNC, nous devrons dabord arrêter linstance du serveur VNC en cours dexécution sur le port 5901.<br />
<code class="language-plaintext highlighter-rouge">vncserver -kill :1</code><br />
Killing Xtightvnc process ID 6749</p>
<p>Avant de commencer à configurer le nouveau fichier <strong>xstartup</strong>, sauvegardons loriginal.<br />
<code class="language-plaintext highlighter-rouge">mv ~/.vnc/xstartup ~/.vnc/xstartup.bak</code><br />
Recréer un fichier <strong>xstartup</strong><br />
<code class="language-plaintext highlighter-rouge">nano ~/.vnc/xstartup</code><br />
Collez ces commandes dans le fichier afin quelles soient effectuées automatiquement chaque fois que vous démarrez ou redémarrez le serveur VNC, puis enregistrez et fermez le fichier.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>#!/bin/bash
xrdb $HOME/.Xresources
startxfce4 &amp;
</code></pre></div></div>
<p>La première commande du fichier, <strong>xrdb $HOME/.Xresources</strong>, indique au framework GUI de VNC de lire le fichier <strong>.Xresources</strong> de lutilisateur du serveur.<br />
<strong>.Xresources</strong> est lendroit où un utilisateur peut apporter des modifications à certains paramètres du bureau graphique, comme les couleurs des terminaux, les thèmes du curseur et le rendu des polices.<br />
La troisième commande indique simplement au serveur de lancer <strong>lxde</strong>, où vous trouverez tous les logiciels graphiques dont vous avez besoin pour gérer votre serveur de façon confortable.</p>
<p>Pour sassurer que le serveur VNC pourra utiliser ce nouveau fichier de démarrage correctement, nous devrons lui accorder des privilèges exécutables.<br />
<code class="language-plaintext highlighter-rouge">sudo chmod +x ~/.vnc/xstartup</code><br />
Maintenant, redémarrez le serveur VNC pour le test.<br />
<code class="language-plaintext highlighter-rouge">vncserver</code></p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>New 'X' desktop is vps-26381.fhnet.fr:1
Starting applications specified in /home/ubun/.vnc/xstartup
Log file is /home/ubun/.vnc/vps-26381.fhnet.fr:1.log
</code></pre></div></div>
<h4 id="etape-3---tester-le-bureau-vnc">Etape 3 - Tester le bureau Vnc</h4>
<p>Dans cette étape, nous testerons la connectivité de votre serveur VNC.</p>
<p>Tout dabord, nous devons créer une connexion SSH sur votre ordinateur local qui remplace de manière sécurisée la connexion localhost pour VNC.<br />
Vous pouvez le faire via le terminal sous Linux ou OS X avec la commande suivante.<br />
<code class="language-plaintext highlighter-rouge">ssh -l utilisateur -L 55444:localhost:5901 192.168.1.10</code> sans clé SSH<br />
Ensuite, vous pouvez maintenant utiliser un client VNC pour tenter une connexion au serveur VNC sur <strong>localhost:55444</strong>. Vous serez invité à vous authentifier.<br />
<code class="language-plaintext highlighter-rouge">vncviewer localhost:55444</code></p>
<ul>
<li>cest loption L qui permet de créer le tunnel ssh</li>
<li><strong>55444</strong> sera le nouveau port à utiliser sur sa machine locale</li>
<li><em>*localhost</em> dans ce cas-ci est la machine à atteindre à partir du serveur distant 192.168.1.10</li>
<li><strong>5901</strong> est le port de la machine à atteindre pour la connexion VNC (écran :1), dans ce cas on travail sur localhost car cest la même machine</li>
<li><strong>192.168.1.10</strong> est lIP de la machine distante ayant sshd (elle pourrait être différente de la machine à atteindre dans un autre cas)</li>
</ul>
<p>Cas du serveur avec clé authentification SSH<br />
<code class="language-plaintext highlighter-rouge">ssh -p 55026 -i ~/.ssh/kvm-vps-26381 -L 5901:localhost:5901 -N -f -l ubun 93.115.96.97</code><br />
Depuis le poste qui a ouvert la session SSH pour le serveur vnc<br />
<code class="language-plaintext highlighter-rouge">vncviewer localhost:5901</code></p>
<h4 id="etape-4---créer-un-service-vnc">Etape 4 - Créer un service vnc</h4>
<p>Ensuite, nous configurons le serveur VNC en tant que service système.<br />
Cela permettra de démarrer, arrêter et redémarrer le cas échéant, comme tout autre service système.<br />
Tout dabord, créez un nouveau fichier dunité appelé <strong>/etc/systemd/system/vncserver@.service</strong> en utilisant votre éditeur de texte préféré:
<code class="language-plaintext highlighter-rouge">sudo nano /etc/systemd/system/vncserver@.service</code><br />
Copiez et collez le suivant. Assurez-vous de modifier la valeur de lutilisateur et le nom dutilisateur dans la valeur de PIDFILE pour correspondre à votre nom dutilisateur.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>[Unit]
Description=Start TightVNC server at startup
After=syslog.target network.target
[Service]
Type=forking
User=ubun
PAMName=login
PIDFile=/home/ubun/.vnc/%H:%i.pid
ExecStartPre=-/usr/bin/vncserver -kill :%i &gt; /dev/null 2&gt;&amp;1
ExecStart=/usr/bin/vncserver -depth 24 -geometry 1280x800 :%i
ExecStop=/usr/bin/vncserver -kill :%i
[Install]
WantedBy=multi-user.target
</code></pre></div></div>
<p>Enregistrez et fermez le fichier.<br />
Ensuite, rendez le système au courant du nouveau fichier système.<br />
<code class="language-plaintext highlighter-rouge">sudo systemctl daemon-reload</code><br />
Activez le fichier système<br />
<code class="language-plaintext highlighter-rouge">sudo systemctl enable vncserver@1.service</code><br />
Arrêtez linstance actuelle du serveur VNC si elle est toujours en cours dexécution.<br />
<code class="language-plaintext highlighter-rouge">vncserver -kill :1</code><br />
Ensuite, démarrez-le <br />
` sudo systemctl start vncserver@1<code class="language-plaintext highlighter-rouge">
Vous pouvez vérifier l'état avec cette commande:
</code>sudo systemctl status vncserver@1`<br />
Si cela a commencé correctement, la sortie devrait ressembler à ceci:</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>...
Active: active (running) since Thu 2017-09-14 16:29:59 UTC; 1min 10s ago
Process: 675 ExecStart=/usr/bin/vncserver -depth 24 -geometry 1280x800 :%i (code=exited, status=0/SUCCESS)
...
Sep 14 16:29:57 vps-26381.fhnet.fr systemd[1]: Starting Start TightVNC server at startup...
Sep 14 16:29:57 vps-26381.fhnet.fr systemd[657]: pam_unix(login:session): session opened for user ubun by (uid=0)
Sep 14 16:29:58 vps-26381.fhnet.fr systemd[675]: pam_unix(login:session): session opened for user ubun by (uid=0)
Sep 14 16:29:59 vps-26381.fhnet.fr systemd[1]: Started Start TightVNC server at startup.
</code></pre></div></div>
<h4 id="conclusion">Conclusion</h4>
<p>Vous disposez dun serveur VNC sécurisé sur votre <strong>Ubuntu 16.04 Server 16.04</strong>.<br />
Maintenant, vous pourrez gérer vos fichiers, vos logiciels et vos paramètres avec une interface graphique facile à utiliser et familière.</p>
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function FuzzySearchStrategy () {
this.matches = function (string, crit) {
return _$fuzzysearch_1(crit.toLowerCase(), string.toLowerCase())
}
}
'use strict'
var _$LiteralSearchStrategy_6 = new LiteralSearchStrategy()
function LiteralSearchStrategy () {
this.matches = function (str, crit) {
if (!str) return false
str = str.trim().toLowerCase()
crit = crit.trim().toLowerCase()
return crit.split(' ').filter(function (word) {
return str.indexOf(word) >= 0
}).length === crit.split(' ').length
}
}
'use strict'
var _$Repository_4 = {
put: put,
clear: clear,
search: search,
setOptions: __setOptions_4
}
/* removed: const _$FuzzySearchStrategy_5 = require('./SearchStrategies/FuzzySearchStrategy') */;
/* removed: const _$LiteralSearchStrategy_6 = require('./SearchStrategies/LiteralSearchStrategy') */;
function NoSort () {
return 0
}
const data = []
let opt = {}
opt.fuzzy = false
opt.limit = 10
opt.searchStrategy = opt.fuzzy ? _$FuzzySearchStrategy_5 : _$LiteralSearchStrategy_6
opt.sort = NoSort
opt.exclude = []
function put (data) {
if (isObject(data)) {
return addObject(data)
}
if (isArray(data)) {
return addArray(data)
}
return undefined
}
function clear () {
data.length = 0
return data
}
function isObject (obj) {
return Boolean(obj) && Object.prototype.toString.call(obj) === '[object Object]'
}
function isArray (obj) {
return Boolean(obj) && Object.prototype.toString.call(obj) === '[object Array]'
}
function addObject (_data) {
data.push(_data)
return data
}
function addArray (_data) {
const added = []
clear()
for (let i = 0, len = _data.length; i < len; i++) {
if (isObject(_data[i])) {
added.push(addObject(_data[i]))
}
}
return added
}
function search (crit) {
if (!crit) {
return []
}
return findMatches(data, crit, opt.searchStrategy, opt).sort(opt.sort)
}
function __setOptions_4 (_opt) {
opt = _opt || {}
opt.fuzzy = _opt.fuzzy || false
opt.limit = _opt.limit || 10
opt.searchStrategy = _opt.fuzzy ? _$FuzzySearchStrategy_5 : _$LiteralSearchStrategy_6
opt.sort = _opt.sort || NoSort
opt.exclude = _opt.exclude || []
}
function findMatches (data, crit, strategy, opt) {
const matches = []
for (let i = 0; i < data.length && matches.length < opt.limit; i++) {
const match = findMatchesInObject(data[i], crit, strategy, opt)
if (match) {
matches.push(match)
}
}
return matches
}
function findMatchesInObject (obj, crit, strategy, opt) {
for (const key in obj) {
if (!isExcluded(obj[key], opt.exclude) && strategy.matches(obj[key], crit)) {
return obj
}
}
}
function isExcluded (term, excludedTerms) {
for (let i = 0, len = excludedTerms.length; i < len; i++) {
const excludedTerm = excludedTerms[i]
if (new RegExp(excludedTerm).test(term)) {
return true
}
}
return false
}
/* globals ActiveXObject:false */
'use strict'
var _$JSONLoader_2 = {
load: load
}
function load (location, callback) {
const xhr = getXHR()
xhr.open('GET', location, true)
xhr.onreadystatechange = createStateChangeListener(xhr, callback)
xhr.send()
}
function createStateChangeListener (xhr, callback) {
return function () {
if (xhr.readyState === 4 && xhr.status === 200) {
try {
callback(null, JSON.parse(xhr.responseText))
} catch (err) {
callback(err, null)
}
}
}
}
function getXHR () {
return window.XMLHttpRequest ? new window.XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP')
}
'use strict'
var _$OptionsValidator_3 = function OptionsValidator (params) {
if (!validateParams(params)) {
throw new Error('-- OptionsValidator: required options missing')
}
if (!(this instanceof OptionsValidator)) {
return new OptionsValidator(params)
}
const requiredOptions = params.required
this.getRequiredOptions = function () {
return requiredOptions
}
this.validate = function (parameters) {
const errors = []
requiredOptions.forEach(function (requiredOptionName) {
if (typeof parameters[requiredOptionName] === 'undefined') {
errors.push(requiredOptionName)
}
})
return errors
}
function validateParams (params) {
if (!params) {
return false
}
return typeof params.required !== 'undefined' && params.required instanceof Array
}
}
'use strict'
var _$utils_9 = {
merge: merge,
isJSON: isJSON
}
function merge (defaultParams, mergeParams) {
const mergedOptions = {}
for (const option in defaultParams) {
mergedOptions[option] = defaultParams[option]
if (typeof mergeParams[option] !== 'undefined') {
mergedOptions[option] = mergeParams[option]
}
}
return mergedOptions
}
function isJSON (json) {
try {
if (json instanceof Object && JSON.parse(JSON.stringify(json))) {
return true
}
return false
} catch (err) {
return false
}
}
var _$src_8 = {};
(function (window) {
'use strict'
let options = {
searchInput: null,
resultsContainer: null,
json: [],
success: Function.prototype,
searchResultTemplate: '<li><a href="{url}" title="{desc}">{title}</a></li>',
templateMiddleware: Function.prototype,
sortMiddleware: function () {
return 0
},
noResultsText: 'No results found',
limit: 10,
fuzzy: false,
debounceTime: null,
exclude: []
}
let debounceTimerHandle
const debounce = function (func, delayMillis) {
if (delayMillis) {
clearTimeout(debounceTimerHandle)
debounceTimerHandle = setTimeout(func, delayMillis)
} else {
func.call()
}
}
const requiredOptions = ['searchInput', 'resultsContainer', 'json']
/* removed: const _$Templater_7 = require('./Templater') */;
/* removed: const _$Repository_4 = require('./Repository') */;
/* removed: const _$JSONLoader_2 = require('./JSONLoader') */;
const optionsValidator = _$OptionsValidator_3({
required: requiredOptions
})
/* removed: const _$utils_9 = require('./utils') */;
window.SimpleJekyllSearch = function (_options) {
const errors = optionsValidator.validate(_options)
if (errors.length > 0) {
throwError('You must specify the following required options: ' + requiredOptions)
}
options = _$utils_9.merge(options, _options)
_$Templater_7.setOptions({
template: options.searchResultTemplate,
middleware: options.templateMiddleware
})
_$Repository_4.setOptions({
fuzzy: options.fuzzy,
limit: options.limit,
sort: options.sortMiddleware,
exclude: options.exclude
})
if (_$utils_9.isJSON(options.json)) {
initWithJSON(options.json)
} else {
initWithURL(options.json)
}
const rv = {
search: search
}
typeof options.success === 'function' && options.success.call(rv)
return rv
}
function initWithJSON (json) {
_$Repository_4.put(json)
registerInput()
}
function initWithURL (url) {
_$JSONLoader_2.load(url, function (err, json) {
if (err) {
throwError('failed to get JSON (' + url + ')')
}
initWithJSON(json)
})
}
function emptyResultsContainer () {
options.resultsContainer.innerHTML = ''
}
function appendToResultsContainer (text) {
options.resultsContainer.innerHTML += text
}
function registerInput () {
options.searchInput.addEventListener('input', function (e) {
if (isWhitelistedKey(e.which)) {
emptyResultsContainer()
debounce(function () { search(e.target.value) }, options.debounceTime)
}
})
}
function search (query) {
if (isValidQuery(query)) {
emptyResultsContainer()
render(_$Repository_4.search(query), query)
}
}
function render (results, query) {
const len = results.length
if (len === 0) {
return appendToResultsContainer(options.noResultsText)
}
for (let i = 0; i < len; i++) {
results[i].query = query
appendToResultsContainer(_$Templater_7.compile(results[i]))
}
}
function isValidQuery (query) {
return query && query.length > 0
}
function isWhitelistedKey (key) {
return [13, 16, 20, 37, 38, 39, 40, 91].indexOf(key) === -1
}
function throwError (message) {
throw new Error('SimpleJekyllSearch --- ' + message)
}
})(window)
}());
</script>
<!-- Configuration -->
<script>
SimpleJekyllSearch({
searchInput: document.getElementById('search-input'),
resultsContainer: document.getElementById('results-container'),
noResultsText: '<p>Aucun résultat!</p>',
json: '/search.json',
searchResultTemplate: '<li><a href="{url}">{date}&nbsp;{title}</a>&nbsp;(Création {create})</li>'
})
</script>
</div></div>
<script>(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function scrollToAnchor(anchor, duration, callback) {
var $root = this;
$root.animate({ scrollTop: $(anchor).position().top }, duration, function() {
window.history.replaceState(null, '', window.location.href.split('#')[0] + anchor);
callback && callback();
});
}
$.fn.scrollToAnchor = scrollToAnchor;
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function affix(options) {
var $root = this, $window = $(window), $scrollTarget, $scroll,
offsetBottom = 0, scrollTarget = window, scroll = window.document, disabled = false, isOverallScroller = true,
rootTop, rootLeft, rootHeight, scrollBottom, rootBottomTop,
hasInit = false, curState;
function setOptions(options) {
var _options = options || {};
_options.offsetBottom && (offsetBottom = _options.offsetBottom);
_options.scrollTarget && (scrollTarget = _options.scrollTarget);
_options.scroll && (scroll = _options.scroll);
_options.disabled !== undefined && (disabled = _options.disabled);
$scrollTarget = $(scrollTarget);
isOverallScroller = window.isOverallScroller($scrollTarget[0]);
$scroll = $(scroll);
}
function preCalc() {
top();
rootHeight = $root.outerHeight();
rootTop = $root.offset().top + (isOverallScroller ? 0 : $scrollTarget.scrollTop());
rootLeft = $root.offset().left;
}
function calc(needPreCalc) {
needPreCalc && preCalc();
scrollBottom = $scroll.outerHeight() - offsetBottom - rootHeight;
rootBottomTop = scrollBottom - rootTop;
}
function top() {
if (curState !== 'top') {
$root.removeClass('fixed').css({
left: 0,
top: 0
});
curState = 'top';
}
}
function fixed() {
if (curState !== 'fixed') {
$root.addClass('fixed').css({
left: rootLeft + 'px',
top: 0
});
curState = 'fixed';
}
}
function bottom() {
if (curState !== 'bottom') {
$root.removeClass('fixed').css({
left: 0,
top: rootBottomTop + 'px'
});
curState = 'bottom';
}
}
function setState() {
var scrollTop = $scrollTarget.scrollTop();
if (scrollTop >= rootTop && scrollTop <= scrollBottom) {
fixed();
} else if (scrollTop < rootTop) {
top();
} else {
bottom();
}
}
function init() {
if(!hasInit) {
var interval, timeout;
calc(true); setState();
// run calc every 100 millisecond
interval = setInterval(function() {
calc();
}, 100);
timeout = setTimeout(function() {
clearInterval(interval);
}, 45000);
window.pageLoad.then(function() {
setTimeout(function() {
clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState();
});
$window.on('resize', function() {
disabled || (calc(true), setState());
});
hasInit = true;
}
}
setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
}, 200));
return {
setOptions: setOptions,
refresh: function() {
calc(true, { animation: false }); setState();
}
};
}
$.fn.affix = affix;
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function toc(options) {
var $root = this, $window = $(window), $scrollTarget, $scroller, $tocUl = $('<ul class="toc toc--ellipsis"></ul>'), $tocLi, $headings, $activeLast, $activeCur,
selectors = 'h1,h2,h3', container = 'body', scrollTarget = window, scroller = 'html, body', disabled = false,
headingsPos, scrolling = false, hasRendered = false, hasInit = false;
function setOptions(options) {
var _options = options || {};
_options.selectors && (selectors = _options.selectors);
_options.container && (container = _options.container);
_options.scrollTarget && (scrollTarget = _options.scrollTarget);
_options.scroller && (scroller = _options.scroller);
_options.disabled !== undefined && (disabled = _options.disabled);
$headings = $(container).find(selectors).filter('[id]');
$scrollTarget = $(scrollTarget);
$scroller = $(scroller);
}
function calc() {
headingsPos = [];
$headings.each(function() {
headingsPos.push(Math.floor($(this).position().top));
});
}
function setState(element, disabled) {
var scrollTop = $scrollTarget.scrollTop(), i;
if (disabled || !headingsPos || headingsPos.length < 1) { return; }
if (element) {
$activeCur = element;
} else {
for (i = 0; i < headingsPos.length; i++) {
if (scrollTop >= headingsPos[i]) {
$activeCur = $tocLi.eq(i);
} else {
$activeCur || ($activeCur = $tocLi.eq(i));
break;
}
}
}
$activeLast && $activeLast.removeClass('active');
($activeLast = $activeCur).addClass('active');
}
function render() {
if(!hasRendered) {
$root.append($tocUl);
$headings.each(function() {
var $this = $(this);
$tocUl.append($('<li></li>').addClass('toc-' + $this.prop('tagName').toLowerCase())
.append($('<a></a>').text($this.text()).attr('href', '#' + $this.prop('id'))));
});
$tocLi = $tocUl.children('li');
$tocUl.on('click', 'a', function(e) {
e.preventDefault();
var $this = $(this);
scrolling = true;
setState($this.parent());
$scroller.scrollToAnchor($this.attr('href'), 400, function() {
scrolling = false;
});
});
}
hasRendered = true;
}
function init() {
var interval, timeout;
if(!hasInit) {
render(); calc(); setState(null, scrolling);
// run calc every 100 millisecond
interval = setInterval(function() {
calc();
}, 100);
timeout = setTimeout(function() {
clearInterval(interval);
}, 45000);
window.pageLoad.then(function() {
setTimeout(function() {
clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState(null, scrolling);
});
$window.on('resize', window.throttle(function() {
if (!disabled) {
render(); calc(); setState(null, scrolling);
}
}, 100));
}
hasInit = true;
}
setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
}, 200));
return {
setOptions: setOptions
};
}
$.fn.toc = toc;
});
})();
/*(function () {
})();*/
</script><script>
/* toc must before affix, since affix need to konw toc' height. */(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
var TOC_SELECTOR = window.TEXT_VARIABLES.site.toc.selectors;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window);
var $articleContent = $('.js-article-content');
var $tocRoot = $('.js-toc-root'), $col2 = $('.js-col-aside');
var toc;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
var hasToc = $articleContent.find(TOC_SELECTOR).length > 0;
function disabled() {
return $col2.css('display') === 'none' || !hasToc;
}
tocDisabled = disabled();
toc = $tocRoot.toc({
selectors: TOC_SELECTOR,
container: $articleContent,
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
tocDisabled = disabled();
toc && toc.setOptions({
disabled: tocDisabled
});
}, 100));
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window), $pageFooter = $('.js-page-footer');
var $pageAside = $('.js-page-aside');
var affix;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
affix = $pageAside.affix({
offsetBottom: $pageFooter.outerHeight(),
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
scroll: hasSidebar ? $('.js-page-main').children() : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
affix && affix.setOptions({
disabled: tocDisabled
});
}, 100));
window.pageAsideAffix = affix;
});
})();
</script><!---->
</div>
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var $root = document.getElementsByClassName('root')[0];
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