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<meta name="description" content="URL: http://linuxfr.org/news/exploiter-inotify-c-est-simpleTitle: Exploiter inotify, c’est simpleAuthors: Denis Dordoigne Davy Defaud, palm123,...">
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</details><p>URL: http://linuxfr.org/news/exploiter-inotify-c-est-simple
Title: Exploiter inotify, c’est simple
Authors: Denis Dordoigne
Davy Defaud, palm123, NeoX, Bruno Michel, Benoît Sibaud et ZeroHeure
Date: 2014-11-23T12:23:03+01:00
License: CC by-sa
Tags: fichiers, notifications, surveillance, supervision et modification
Score: 92</p>
<p>Intégré à partir de <a href="https://linuxfr.org/news/sortie-du-noyau-linux-2613">Linux 2.6.13</a>, le mécanisme [[inotify]] permet de mettre en place des actions associées à l’évolution de l’état du système de fichiers. À l’occasion des 10 ans de ce projet, cette dépêche va vous donner des pistes pour exploiter ce mécanisme qui pourra vous simplifier bien des tâches d’administration.</p>
<hr />
<p><a href="http://fr.wikipedia.org/wiki/Inotify">Page Wikipédia inotify</a>
<a href="http://inotify.aiken.cz/?section=incron&amp;page=doc&amp;lang=en">Documentation de incron</a>
<a href="https://code.google.com/p/lsyncd/">Projet lsyncd</a>
<a href="http://iwatch.sourceforge.net/index.html">Projet iwatch</a>
<a href="https://github.com/rvoicilas/inotify-tools/wiki/">inotify-tools</a></p>
<hr />
<p>#Description du fonctionnement
Le mécanisme <em>inotify</em> permet de positionner un <em>watch descriptor</em> sur un fichier, qui enverra des notifications au système lorsque des événements affecteront le fichier suivi. Pour rappel, dans le monde UNIX, un fichier peut aussi bien représenter un fichier simple qu’un répertoire, un périphérique, un lien, etc. Les principaux événements qui peuvent être suivis sont :</p>
<ul>
<li><strong>IN_ACCESS</strong> : le fichier est accédé en lecture ;</li>
<li><strong>IN_MODIFY</strong> : le fichier est modifié ;</li>
<li><strong>IN_ATTRIB</strong> : les <a href="http://en.wikipedia.org/wiki/File_attribute">attributs</a> du fichiers sont modifiés ;</li>
<li><strong>IN_OPEN</strong> : le fichier est ouvert ;</li>
<li><strong>IN_CLOSE_WRITE</strong> : le fichier est fermé après avoir été ouvert en écriture ;</li>
<li><strong>IN_CLOSE_NOWRITE</strong> : le fichier est fermé après avoir été ouvert en lecture ;</li>
<li><strong>IN_MOVED_FROM</strong> / <strong>IN_MOVED_TO</strong> : le fichier a été déplacé ou renommé ;</li>
<li><strong>IN_DELETE_SELF</strong> : le fichier a été supprimé ;</li>
<li><strong>IN_DELETE</strong> : un fichier a été supprimé dans le répertoire surveillé ;</li>
<li><strong>IN_CREATE</strong> : un fichier a été créé dans le répertoire surveillé.</li>
</ul>
<p>Dans le mécanisme standard de inotify, il n’y a pas de notion de récursivité : un événement dans <code class="language-plaintext highlighter-rouge">/home/georgette/.ssh</code> ne sera pas remonté par un <em>watch descriptor</em> surveillant <code class="language-plaintext highlighter-rouge">/home</code> ; cependant, les outils implémentant <em>inotify</em> gèrent en général eux‐mêmes cette récursivité (en positionnant des <em>watch descriptors</em> dans toute l’arborescence, et en ajoutant dynamiquement des <em>watch descriptors</em> à chaque fois qu’un événement <em>IN_CREATE</em> survient).</p>
<h1 id="incron-mieux-que-des-tâches-planifiées-des-tâches-instantanées">Incron : mieux que des tâches planifiées, des tâches instantanées</h1>
<p>## Principe ##
Les administrateurs de systèmes GNU/Linux connaissent tous le gestionnaire de tâche planifié <em>[[cron]]</em>, qui permet de lancer des tâches selon une planification cyclique (par exemple tous les dimanches à 14 h) définie dans une <em>crontab</em>, c’est‐à‐dire un fichier indiquant la tâche à exécuter et l’heure à laquelle elle doit être exécutée. Le logiciel <em>incron</em> reprend ce principe, mais, plutôt que de se baser sur des événements temporels, il se base sur des événements <em>inotify</em>.</p>
<p>## Installation ##
Le logiciel <em>incron</em> est empaqueté par la plupart des distributions, il suffit donc de l’installer à l’aide de votre gestionnaire de paquets préféré :</p>
<div class="language-sh highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c"># pour Debian, Ubuntu, etc.</span>
<span class="nv">$ </span>apt-get <span class="nb">install </span>incron
<span class="c"># pour Red Hat, CentOS etc.</span>
<span class="nv">$ </span>yum <span class="nb">install </span>incron
</code></pre></div></div>
<p>Une fois installé, il faut insérer les utilisateurs autorisés à utiliser <em>incron</em> dans le fichier <code class="language-plaintext highlighter-rouge">/etc/incron.allow</code> :</p>
<div class="language-sh highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span><span class="nb">cat</span> /etc/incron.allow
httpadm
nagios
georgette
</code></pre></div></div>
<h2 id="utilisation">Utilisation</h2>
<p>Pour créer une tâche dans la « <em>incrontab</em> », lancer la commande <code class="language-plaintext highlighter-rouge">incrontab -e</code>, et y déclarer l’événement et la commande associée. Par exemple, on peut demander à lancer automatiquement la commande <code class="language-plaintext highlighter-rouge">postalias</code> lorsque le fichier <code class="language-plaintext highlighter-rouge">/etc/aliases</code> est modifié :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>/etc/aliases IN_MODIFY postalias
</code></pre></div></div>
<p><em>Note : incron fait partie des logiciels qui n’implémentent pas la récursivité.</em></p>
<h1 id="lsyncd--vers-un-système-de-fichiers-distribué">lsyncd : vers un système de fichiers distribué</h1>
<h2 id="principe">Principe</h2>
<p>Mettre en place un [[système de fichiers distribué]] peut s’avérer compliqué, puisque cela implique en général une phase de migration des données existantes dans un nouveau système de fichiers qu’il faut avoir installé sur de nouveaux disques, voire de nouveaux serveurs. Le logiciel <em>lsyncd</em> permet de simuler un système de fichiers distribué en synchronisant simplement les fichiers d’une arborescence, en utilisant <em>[[rsync]]</em>. L’avantage de <em>lsyncd</em> est que la synchronisation est faite à chaque modification, et dès que celle‐ci intervient : cela simule presque parfaitement un système de fichiers distribué synchrone</p>
<h2 id="mise-en-place">Mise en place</h2>
<p><em>lsyncd</em> est empaqueté pour la plupart des distributions GNU/Linux, il suffit donc de l’installer via votre gestionnaire de paquets habituel. La configuration se fait à l’aide de scripts en langage [[Lua]]. Si vous n’êtes pas habitué à utiliser ce langage, vous pouvez suivre les exemples donnés dans la documentation. Ici, on va synchroniser <code class="language-plaintext highlighter-rouge">/var/www/mon_site</code> :</p>
<div class="language-sh highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c"># cat /etc/lsyncd.conf.lua</span>
<span class="nt">--</span> configuration de lsyncd
settings<span class="o">{</span>
statusFile <span class="o">=</span> <span class="s2">"/tmp/lsyncd.stat"</span>,
statusInterval <span class="o">=</span> 1,
insist <span class="o">=</span> 1,
inotifyMode <span class="o">=</span> <span class="s2">"CloseWrite or Modify"</span>,
<span class="o">}</span>
<span class="nt">--</span> liste des serveurs vers lesquels synchroniser
targetlist <span class="o">=</span> <span class="o">{</span>
<span class="s2">"web01::mon_site"</span>,
<span class="s2">"web02::mon_site"</span>,
<span class="s2">"web03::mon_site"</span>
<span class="o">}</span>
<span class="nt">--</span> configuration de la synchronisation
<span class="k">for </span>_, server <span class="k">in </span>ipairs<span class="o">(</span>targetlist<span class="o">)</span> <span class="k">do
</span><span class="nb">sync</span><span class="o">{</span> default.rsync,
<span class="nb">source</span><span class="o">=</span><span class="s2">"/var/www/mon_site"</span>,
<span class="nv">target</span><span class="o">=</span>server
<span class="o">}</span>
end
</code></pre></div></div>
<p>Pour que la synchronisation fonctionne, il faudra bien évidemment configurer <em>[[rsync]]</em> sur les serveurs web01, web02 et web03 pour que la destination <strong>mon_site</strong> pointe vers <code class="language-plaintext highlighter-rouge">/var/www/mon_site</code>.</p>
<p># iwatch : ceci n’est pas une montre #</p>
<p>Le logiciel <em>iwatch</em> permet de déclencher une action suite à un événement <em>inotify</em>. Il s’agit d’un logiciel destiné à l’origine à la surveillance, on s’en sert donc habituellement pour envoyer un courriel lorsqu’un fichier est modifié. Par exemple, pour prévenir Georgette de chaque modification de <code class="language-plaintext highlighter-rouge">/etc/shadow</code> :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>iwatch -m georgette@example.com /etc/shadow
</code></pre></div></div>
<p>Contrairement à <em>incron</em>, <em>iwatch</em> gère la récursivité (avec l’option <code class="language-plaintext highlighter-rouge">-r</code>) et les exclusions (avec l’option <code class="language-plaintext highlighter-rouge">-x</code> pour un chemin, et <code class="language-plaintext highlighter-rouge">-X</code> pour une [[expression rationnelle]]), par exemple pour lancer l’antivirus pour chaque modification dans <code class="language-plaintext highlighter-rouge">/var/www/upload</code> (ou un de ses sous‐répertoires) sauf des fichiers <code class="language-plaintext highlighter-rouge">.png</code> :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>iwatch -r -X '\.png$' -c "clamscan %f" /var/www/upload
</code></pre></div></div>
<p>Ici, <em>%f</em> pointe vers le fichier ayant déclenché l’événement.</p>
<h1 id="inotify-tools-mettez-de-linotify-dans-votre-ligne-de-commande">inotify-tools : mettez de l’inotify dans votre ligne de commande</h1>
<p>Les <em>inotify-tools</em> permettent de faire des appels <em>inotify</em> directement en ligne de commande, quel que soit le shell utilisé.</p>
<h2 id="inotifywait">inotifywait</h2>
<p>La première commande fournie est <em>inotifywait</em>, qui permet d’attendre un événement avant de continuer une exécution, par exemple pour éviter qu’une commande ayant un fichier en prérequis tombe en erreur :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>inotifywait -e close_write /var/run/jboss.pid &amp;&amp; supervision_jboss.sh
</code></pre></div></div>
<p>L’option <code class="language-plaintext highlighter-rouge">-t</code> (<em>timeout</em>) permet de mettre en place un délai d’expiration en secondes pour, par exemple, sortir en erreur si un événement est trop long à arriver :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sauvegarde.sh &amp; ; inotifywait -e close_write -t 10000 rapport_sauvegarde || killall sauvegarde.sh
</code></pre></div></div>
<h2 id="inotifywatch">inotifywatch</h2>
<p>La commande <em>inotifywatch</em> permet de faire un rapport d’activité des événements concernant les répertoires surveillés :</p>
<div class="language-sh highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>inotifywatch /var/cache/apt/archives &amp;
<span class="o">[</span>1] 18607
root@kamoulix:~# Establishing watches...
Finished establishing watches, now collecting statistics.
root@kamoulix:~# apt-get autoclean
root@kamoulix:~# <span class="nb">kill</span> %1
total access close_write close_nowrite open delete filename
1919 7 1 2 3 1906 /var/cache/apt/archives/
</code></pre></div></div>
<p>Par défaut, <em>inotifywatch</em> s’arrêtera après avoir un reçu un signal d’interruption. On peut aussi le faire tourner juste pour un certain nombre de secondes avec l’option <code class="language-plaintext highlighter-rouge">-t</code>, par exemple pour voir l’activité du répertoire <em>home</em> de l’utilisateur <em>georgette</em> pendant une minute :</p>
<div class="language-sh highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>inotifywatch <span class="nt">-r</span> /home/georgette/ <span class="nt">-t</span> 20
Establishing watches...
Finished establishing watches, now collecting statistics.
total access modify close_write close_nowrite open moved_from moved_to create filename
16 3 3 2 0 2 2 2 2 /home/georgette/.mozilla/firefox/e3lq4lm3.default/
13 11 0 0 1 1 0 0 0 /home/georgette/.cache/myapp/mycache/
</code></pre></div></div>
<p># Codez avec inotify #
Les principaux langages de programmation proposent une bibliothèque pour travailler avec <em>inotify</em>, en voici une liste non exhaustive :</p>
<ul>
<li>en Perl : <a href="http://search.cpan.org/~twerner/Linux-Inotify-0.05/lib/Linux/Inotify.pm"><em>Linux::Inotify</em></a>, <a href="http://search.cpan.org/~mlehmann/Linux-Inotify2-1.22/Inotify2.pm">Linux::Inotify2</a>, <a href="http://search.cpan.org/~gwyn/POEx-Inotify-0.0201/lib/POEx/Inotify.pm">POEx::Inotify</a>, <a href="http://search.cpan.org/search?query=inotify&amp;mode=module">etc.</a> ;</li>
<li>en Python : <a href="https://github.com/seb-m/pyinotify"><em>pyinotify</em></a>, <a href="https://launchpad.net/inotifyx/">inotifyx</a>, <a href="http://pythonhosted.org//pollinotify/">pollinotify</a>, <a href="https://pypi.python.org/pypi?%3Aaction=search&amp;term=inotify&amp;submit=search">etc.</a> ;</li>
<li>en Ruby : <a href="https://github.com/nex3/rb-inotify"><em>rb-inotify</em></a>, <a href="https://rubygems.org/gems/inotify">inotify</a>, <a href="http://dinhe.net/~aredridel/projects/ruby/ruby-inotify">ruby-inotify</a>, <a href="https://rubygems.org/search?utf8=%E2%9C%93&amp;query=inotify">etc.</a> ;</li>
<li>en PHP : l’extension PECL <a href="http://php.net/manual/en/book.inotify.php"><em>inotify</em></a> ;</li>
<li>en Java : <a href="http://jnotify.sourceforge.net/"><em>JNotify</em></a> pour faire simple, ou <a href="http://markusjais.com/file-system-events-with-java-7/">développer sa propre classe</a>.</li>
</ul>
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search.clear && search.clear();
} else {
$searchBox.addClass('not-empty');
search.onInputNotEmpty && search.onInputNotEmpty(val);
}
}, 400));
$searchClear.on('click', function() {
$searchInput.val(''); $searchBox.removeClass('not-empty');
search.clear && search.clear();
});
}
});
})();
</script><div class="search search--dark">
<div class="main">
<div class="search__header">Recherche</div>
<div class="search-bar">
<div class="search-box js-search-box">
<div class="search-box__icon-search"><i class="fas fa-search"></i></div>
<input id="search-input" type="text" />
<div class="search-box__icon-clear js-icon-clear">
<a><i class="fas fa-times"></i></a>
</div>
</div>
<button class="button button--theme-dark button--pill search__cancel js-search-toggle">
Annuler</button>
</div>
<div id="results-container" class="search-result js-search-result"></div>
</div>
</div>
<!-- Script pointing to search-script.js -->
<script>/*!
* Simple-Jekyll-Search
* Copyright 2015-2020, Christian Fei
* Licensed under the MIT License.
*/
(function(){
'use strict'
var _$Templater_7 = {
compile: compile,
setOptions: setOptions
}
const options = {}
options.pattern = /\{(.*?)\}/g
options.template = ''
options.middleware = function () {}
function setOptions (_options) {
options.pattern = _options.pattern || options.pattern
options.template = _options.template || options.template
if (typeof _options.middleware === 'function') {
options.middleware = _options.middleware
}
}
function compile (data) {
return options.template.replace(options.pattern, function (match, prop) {
const value = options.middleware(prop, data[prop], options.template)
if (typeof value !== 'undefined') {
return value
}
return data[prop] || match
})
}
'use strict';
function fuzzysearch (needle, haystack) {
var tlen = haystack.length;
var qlen = needle.length;
if (qlen > tlen) {
return false;
}
if (qlen === tlen) {
return needle === haystack;
}
outer: for (var i = 0, j = 0; i < qlen; i++) {
var nch = needle.charCodeAt(i);
while (j < tlen) {
if (haystack.charCodeAt(j++) === nch) {
continue outer;
}
}
return false;
}
return true;
}
var _$fuzzysearch_1 = fuzzysearch;
'use strict'
/* removed: const _$fuzzysearch_1 = require('fuzzysearch') */;
var _$FuzzySearchStrategy_5 = new FuzzySearchStrategy()
function FuzzySearchStrategy () {
this.matches = function (string, crit) {
return _$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>
<script>(function () {
var $root = document.getElementsByClassName('root')[0];
if (window.hasEvent('touchstart')) {
$root.dataset.isTouch = true;
document.addEventListener('touchstart', function(){}, false);
}
})();
</script>
</body>
</html>
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