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yannstatic/static/2019/12/25/sur-l-interet-des-systemes-de-protections-des-courriers-electroniques-dkim-spf-et-dmarc.html

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<article itemscope itemtype="http://schema.org/Article"><div class="article__header"><header><h1 style="color:Tomato;">sur-l-interet-des-systemes-de-protections-des-courriers-electroniques-dkim-spf-et-dmarc</h1></header></div><meta itemprop="headline" content="sur-l-interet-des-systemes-de-protections-des-courriers-electroniques-dkim-spf-et-dmarc"><div class="article__info clearfix"><ul class="left-col menu"><li>
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</details><p>URL: https://linuxfr.org/users/raphj/journaux/sur-l-interet-des-systemes-de-protections-des-courriers-electroniques-dkim-spf-et-dmarc
Title: Sur l’intérêt des systèmes de protections des courriers électroniques (DKIM, SPF et DMARC)
Authors: raphj
Date: 2019-01-06T15:15:50+01:00
License: CC by-sa
Tags: dkim, dmarc, spf, spam et email
Score: 50</p>
<p>J’héberge mon propre courrier électronique. Le faire correctement n’est pas une chose triviale à faire et on est amené à apprendre l’existence de plusieurs mécanismes. Ce matin, j’ai reçu un courriel de non-livraison étrange de la part de Gmail et c’est l’occasion de parler de ces mécanismes, puis on décortiquera ce courriel étrange.</p>
<h1 id="spf-dkim-et-dmarc">SPF, DKIM, et DMARC</h1>
<p>Ces trois technologies servent à lutter contre le courrier indésirable.</p>
<h2 id="spf--sender-policy-framework">SPF : Sender Policy Framework</h2>
<p>SPF prend la forme d’un enregistrement DNS sur un nom de domaine. Cet enregistrement définit la liste des adresses IP autorisées à envoyer du courriel en utilisant ce nom de domaine. On peut être plus ou moins strict.</p>
<p>Voici par exemple mon entrée SPF, anonymisée :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ dig example.org TXT
[…]
example.org. 600 IN TXT v=spf1 a mx ip4:xxx.xxx.xxx.xxx ip6:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx -all
[…]
</code></pre></div></div>
<p>Je donne mon adresse IPv4, mon adresse IPv6, et <code class="language-plaintext highlighter-rouge">-all</code> indique que n’importe quel autre expéditeur doit être rejeté, et de façon stricte à cause du tiret « - ».
Si j’avais voulu dire « Si vous recevez un courriel d’une autre adresse, peut-être que celui-ci est illégitime », j’aurais plutôt mis un tilde « ~ ».</p>
<p>Pour plus de détails, voir par exemple [https://fr.wikipedia.org/wiki/Sender_Policy_Framework].</p>
<h2 id="dkim--domainkeys-identified-mail">DKIM : DomainKeys Identified Mail</h2>
<p>DKIM fonctionne avec un système de clé privée et prend également la forme d’un enregistrement DNS.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ dig default._domainkey.example.org TXT
[…]
default._domainkey.example.org. 3600 IN TXT "v=DKIM1; k=rsa; s=email; h=sha256; p=LONGUE_CLEF_PUBLIQUE" "QAB"
[…]
</code></pre></div></div>
<p>Sur le serveur d’envoi, certains entêtes et le contenu du courriel sont signés avec la clé privée puis le serveur destinataire peut vérifier que le contenu et les entêtes n’ont pas été modifiés à l’aide de la clé publique.</p>
<p>Pour plus de détails, voir par exemple
[https://fr.wikipedia.org/wiki/DomainKeys_Identified_Mail</p>
<h2 id="dmarc--domain-message-authentication-reporting--conformance">DMARC : Domain Message Authentication Reporting &amp; Conformance</h2>
<p>DMARC prend également la forme d’un enregistrement DNS.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ dig _dmarc.example.org TXT
[…]
_dmarc.example.org. 3600 IN TXT "v=DMARC1; p=reject;adkim=s; aspf=s; fo=1; rua=mailto:dmark-report@example.org; ruf=mailto:dmark-report@example.org"[…]
</code></pre></div></div>
<p>DMARC indique aux serveurs destinataires que faire avec les mails (illégitimes) entrant : à quel point les règles DKIM et SPF doivent être respectés, et comment (rejet du message ?). DMARC est aussi un mécanisme de rapport : un rapport est envoyé par les serveurs destinataires implémentant cette fonctionnalité à l’adresse indiquée pour tous les courriels qui concernent le nom de domaine concerné. La manière dont le rapport est envoyé est également spécifié.</p>
<p>Voici un exemple de rapport envoyé par Yahoo (un peu adapté pour faire apparaître du courriel valide) :</p>
<p>Pour : <code class="language-plaintext highlighter-rouge">dmarc-report@example.org</code>
Sujet : Report Domain: example.org Submitter: yahoo.fr Report-ID: &lt;1546565007.991476&gt;
Contenu : This is an aggregate report from Oath
Pièce jointe : yahoo.fr!example.org!1546473600!1546559999.xml</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="cp">&lt;?xml version="1.0"?&gt;</span>
<span class="nt">&lt;feedback&gt;</span>
<span class="nt">&lt;report_metadata&gt;</span>
<span class="nt">&lt;org_name&gt;</span>Yahoo! Inc.<span class="nt">&lt;/org_name&gt;</span>
<span class="nt">&lt;email&gt;</span>postmaster@dmarc.yahoo.com<span class="nt">&lt;/email&gt;</span>
<span class="nt">&lt;report_id&gt;</span>1546565007.991476<span class="nt">&lt;/report_id&gt;</span>
<span class="nt">&lt;date_range&gt;</span>
<span class="nt">&lt;begin&gt;</span>1546473600<span class="nt">&lt;/begin&gt;</span>
<span class="nt">&lt;end&gt;</span>1546559999 <span class="nt">&lt;/end&gt;</span>
<span class="nt">&lt;/date_range&gt;</span>
<span class="nt">&lt;/report_metadata&gt;</span>
<span class="nt">&lt;policy_published&gt;</span>
<span class="nt">&lt;domain&gt;</span>example.org<span class="nt">&lt;/domain&gt;</span>
<span class="nt">&lt;adkim&gt;</span>s<span class="nt">&lt;/adkim&gt;</span>
<span class="nt">&lt;aspf&gt;</span>s<span class="nt">&lt;/aspf&gt;</span>
<span class="nt">&lt;p&gt;</span>reject<span class="nt">&lt;/p&gt;</span>
<span class="nt">&lt;pct&gt;</span>100<span class="nt">&lt;/pct&gt;</span>
<span class="nt">&lt;/policy_published&gt;</span>
<span class="nt">&lt;record&gt;</span>
<span class="nt">&lt;row&gt;</span>
<span class="nt">&lt;source_ip&gt;</span>YYY.YYY.YYY.YYY<span class="nt">&lt;/source_ip&gt;</span>
<span class="nt">&lt;count&gt;</span>1<span class="nt">&lt;/count&gt;</span>
<span class="nt">&lt;policy_evaluated&gt;</span>
<span class="nt">&lt;disposition&gt;</span>reject<span class="nt">&lt;/disposition&gt;</span>
<span class="nt">&lt;dkim&gt;</span>fail<span class="nt">&lt;/dkim&gt;</span>
<span class="nt">&lt;spf&gt;</span>fail<span class="nt">&lt;/spf&gt;</span>
<span class="nt">&lt;/policy_evaluated&gt;</span>
<span class="nt">&lt;/row&gt;</span>
<span class="nt">&lt;identifiers&gt;</span>
<span class="nt">&lt;header_from&gt;</span>example.org<span class="nt">&lt;/header_from&gt;</span>
<span class="nt">&lt;/identifiers&gt;</span>
<span class="nt">&lt;auth_results&gt;</span>
<span class="nt">&lt;dkim&gt;</span>
<span class="nt">&lt;domain&gt;</span>domaine-spammeux.fr<span class="nt">&lt;/domain&gt;</span>
<span class="nt">&lt;result&gt;</span>neutral<span class="nt">&lt;/result&gt;</span>
<span class="nt">&lt;/dkim&gt;</span>
<span class="nt">&lt;spf&gt;</span>
<span class="nt">&lt;domain&gt;</span>domaine-spammeux.fr<span class="nt">&lt;/domain&gt;</span>
<span class="nt">&lt;result&gt;</span>softfail<span class="nt">&lt;/result&gt;</span>
<span class="nt">&lt;/spf&gt;</span>
<span class="nt">&lt;/auth_results&gt;</span>
<span class="nt">&lt;/record&gt;</span>
<span class="nt">&lt;record&gt;</span>
<span class="nt">&lt;row&gt;</span>
<span class="nt">&lt;source_ip&gt;</span>xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx<span class="nt">&lt;/source_ip&gt;</span>
<span class="nt">&lt;count&gt;</span>5<span class="nt">&lt;/count&gt;</span>
<span class="nt">&lt;policy_evaluated&gt;</span>
<span class="nt">&lt;disposition&gt;</span>none<span class="nt">&lt;/disposition&gt;</span>
<span class="nt">&lt;dkim&gt;</span>pass<span class="nt">&lt;/dkim&gt;</span>
<span class="nt">&lt;spf&gt;</span>pass<span class="nt">&lt;/spf&gt;</span>
<span class="nt">&lt;/policy_evaluated&gt;</span>
<span class="nt">&lt;/row&gt;</span>
<span class="nt">&lt;identifiers&gt;</span>
<span class="nt">&lt;header_from&gt;</span>example.org<span class="nt">&lt;/header_from&gt;</span>
<span class="nt">&lt;/identifiers&gt;</span>
<span class="nt">&lt;auth_results&gt;</span>
<span class="nt">&lt;dkim&gt;</span>
<span class="nt">&lt;domain&gt;</span>example.org<span class="nt">&lt;/domain&gt;</span>
<span class="nt">&lt;result&gt;</span>pass<span class="nt">&lt;/result&gt;</span>
<span class="nt">&lt;selector&gt;</span>default<span class="nt">&lt;/selector&gt;</span>
<span class="nt">&lt;/dkim&gt;</span>
<span class="nt">&lt;spf&gt;</span>
<span class="nt">&lt;domain&gt;</span>example.org<span class="nt">&lt;/domain&gt;</span>
<span class="nt">&lt;result&gt;</span>pass<span class="nt">&lt;/result&gt;</span>
<span class="nt">&lt;/spf&gt;</span>
<span class="nt">&lt;/auth_results&gt;</span>
<span class="nt">&lt;/record&gt;</span>
<span class="nt">&lt;/feedback&gt;</span>
</code></pre></div></div>
<p>On voit qu’un courriel a été rejeté parce qu’il provenait d’une mauvaise adresse IP et avait une signature DKIM invalide. 5 courriels valides ont été acceptés.</p>
<h2 id="digression">Digression</h2>
<p>Ces mécanismes sont utiles et heureusement qu’ils sont là. Ils évitent des usurpations d’identités et permettent de bloquer du courrier indésirable. Ils posent des problèmes avec les listes de diffusions et les transferts de courrier. Des gens se penchent sur ces problèmes avec un mécanisme en court de standardisation : ARC.</p>
<h1 id="décorticage">Décorticage</h1>
<p>Revenons sur ce courriel de non-livraison étrange, intitulé « Delivery Status Notification (Delay) » de la part de Gmail. Dans la suite, on va considérer que example.org est mon domaine.</p>
<p>En ouvrant le courriel, on voit :</p>
<blockquote>
<p>Delivery incomplete
There was a temporary problem delivering your message to xxxx@[HIDDEN].fr. Gmail will retry for 140 more hours. You’ll be notified if the delivery fails permanently.
LEARN MORE
The response was:</p>
</blockquote>
<blockquote>
<p>The recipient server did not accept our requests to connect. Learn more at https://support.google.com/mail/answer/7720 [XX.YY.ZZ.AA XX.YY.ZZ.AA: 421 No SMTP service here ]</p>
</blockquote>
<p>J’ai censuré l’adresse destinataire du courriel original, certainement valide.</p>
<p>On découvre que Gmail a essayé d’envoyer un message à l’adresse IP XX.YY.ZZ.AA, celle qui est derrière l’hôte mail.[HIDDEN].fr, et s’est fait jeté.</p>
<p>Le contenu du message est bien spammesque et un peu obscure. L’adresse d’expédition (nom changé), d’après le champ FROM du mail, est:</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>From: Jean Bidon &lt;BidonJean@nl.champagne-ardenne.cci.fr&gt;
</code></pre></div></div>
<p>Regardons le champ SPF :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>[…]
$ dig nl.champagne-ardenne.cci.fr TXT
nl.champagne-ardenne.cci.fr. 3501 IN TXT "spf2.0/mfrom mx ip4:83.206.208.128/25 ip4:81.252.92.0/23 ip4:86.64.210.0/23 ip4:195.62.74.0/23 ~all"
nl.champagne-ardenne.cci.fr. 3501 IN TXT "v=spf1 mx ip4:83.206.208.128/25 ip4:81.252.92.0/23 ip4:86.64.210.0/23 ip4:195.62.74.0/23 ~all"
nl.champagne-ardenne.cci.fr. 3501 IN TXT "google-site-verification=ix9iAaNJuQ-0jzi-p8Na6bE0r3S4X9-h1W-gu03Mbj0" ""
[…]
</code></pre></div></div>
<p>Une résolution de ces adresses IP donne des fournisseurs Orange, SFR et NP6. Gmail n’est pas impliqué.</p>
<p>Regardons l’enregistrement DMARC :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ dig _dmarc.nl.champagne-ardenne.cci.fr TXT
[…]
_dmarc.nl.champagne-ardenne.cci.fr. 3600 IN TXT "v=DMARC1; p=none; rua=mailto:dmarc@mailperformance.com"
[…]
</code></pre></div></div>
<p><code class="language-plaintext highlighter-rouge">p=none</code>: Un mail illégitime ne sera pas bloqué avec le mécanisme DMARC.</p>
<p>L’adresse To est cassée (j’ai changé le nom et un peu le nom de domaine (la partie bidon), au cas où la personne existe réellement, et le nom de domaine d’origine existe bien).</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>To: "Marie Dupont" &lt;@bidon-habitat.fr&gt;
</code></pre></div></div>
<p>Bon, pour l’instant, je ne suis pas impliqué alors. Et Gmail non plus, en regardant les enregistrements SPF derrière bidon-habitat.fr.</p>
<p>Mon domaine example.org apparaît dans quelques entêtes :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>Received-From-MTA: dns; leypond.smufkat.choossfroost-criftfruch-@example.org
ARC-Authentication-Results: i=1; mx.google.com;
dkim=temperror (no key for signature) header.i=@example.org header.s=trantpiy header.b=rh7rWrS4;
spf=fail (google.com: domain of leypond.smufkat.choossfroost-criftfruch-@example.org does not designate EE.FF.GG.HH as permitted sender) smtp.mailfrom=leypond.smufkat.choossfroost-criftfruch-@example.org;
dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nl.champagne-ardenne.cci.fr
Return-Path: &lt;leypond.smufkat.choossfroost-criftfruch-@example.org&gt;
Received: from example.org ([EE.FF.GG.HH])
by mx.google.com with ESMTP id w11si16063308plz.327.2019.01.04.21.22.34
for &lt;xxxx@[HIDDEN].fr&gt;;
Fri, 04 Jan 2019 21:22:36 -0800 (PST)
Received-SPF: fail (google.com: domain of leypond.smufkat.choossfroost-criftfruch-@example.org does not designate EE.FF.GG.HH as permitted sender) client-ip=EE.FF.GG.HH;
Authentication-Results: mx.google.com;
dkim=temperror (no key for signature) header.i=@example.org header.s=trantpiy header.b=rh7rWrS4;
spf=fail (google.com: domain of leypond.smufkat.choossfroost-criftfruch-@example.org does not designate EE.FF.GG.HH as permitted sender) smtp.mailfrom=leypond.smufkat.choossfroost-criftfruch-@example.org;
dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nl.champagne-ardenne.cci.fr
</code></pre></div></div>
<p>OK, on apprend que c’est certainement un spammeur qui a pris mon nom de domaine comme adresse de retour, a utilisé une adresse complètement farfelue et qui a essayé de forger une signature DKIM avec mon nom de domaine. Bien sûr, ça a fait râler Gmail (« Authentication-Results: mx.google.com; dkim=temperror (no key for signature) »).</p>
<p>La vérification SPF a également échoué bien sûr, puisque le courriel vient d’une autre IP que la mienne (et en voyant ça, ça m’a rassuré, j’ai écarté l’hypothèse « mon serveur s’est fait piraté »).</p>
<p>De ce que j’ai compris, le serveur EE.FF.GG.HH (qui s’est certainement fait piraté ou est le serveur d’un spammeur) essaie d’envoyer un mail via Gmail à xxxx@[HIDDEN].fr en se faisant passer pour mon nom de domaine. Tordu. [HIDDEN].fr bloque la tentative de connexion de Gmail.
Gmail m’informe que sa tentative de connexion a échoué à l’adresse leypond.smufkat.choossfroost-criftfruch-@example.org à cause de l’entête Return-Path.</p>
<p>C’est original. Ça ressemble à du pourriel horriblement mal géré. Pourquoi le spammeur s’est servi de mon nom de domaine et comment il est tombé dessus ? Mystère complet ! Est-ce une tentative d’envoyer un spam en pervertissant le mécanisme de Return-Path ? S’il faut se fader le déchiffrage des entêtes et décoder du base64, c’est quand même poussé !!
Et puis je n’ai rien à faire avec xxxx@[HIDDEN].fr ni avec la CCI de Champagne Ardennes qui n’existe plus…</p>
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var search = (window.search || (window.search = {}));
var useDefaultSearchBox = window.useDefaultSearchBox === undefined ?
true : window.useDefaultSearchBox ;
var $searchModal = $('.js-page-search-modal');
var $searchToggle = $('.js-search-toggle');
var searchModal = $searchModal.modal({ onChange: handleModalChange, hideWhenWindowScroll: true });
var modalVisible = false;
search.searchModal = searchModal;
var $searchBox = null;
var $searchInput = null;
var $searchClear = null;
function getModalVisible() {
return modalVisible;
}
search.getModalVisible = getModalVisible;
function handleModalChange(visible) {
modalVisible = visible;
if (visible) {
search.onShow && search.onShow();
useDefaultSearchBox && $searchInput[0] && $searchInput[0].focus();
} else {
search.onShow && search.onHide();
useDefaultSearchBox && $searchInput[0] && $searchInput[0].blur();
setTimeout(function() {
useDefaultSearchBox && ($searchInput.val(''), $searchBox.removeClass('not-empty'));
search.clear && search.clear();
window.pageAsideAffix && window.pageAsideAffix.refresh();
}, 400);
}
}
$searchToggle.on('click', function() {
modalVisible ? searchModal.hide() : searchModal.show();
});
// Char Code: 83 S, 191 /
$(window).on('keyup', function(e) {
if (!modalVisible && !window.isFormElement(e.target || e.srcElement) && (e.which === 83 || e.which === 191)) {
modalVisible || searchModal.show();
}
});
if (useDefaultSearchBox) {
$searchBox = $('.js-search-box');
$searchInput = $searchBox.children('input');
$searchClear = $searchBox.children('.js-icon-clear');
search.getSearchInput = function() {
return $searchInput.get(0);
};
search.getVal = function() {
return $searchInput.val();
};
search.setVal = function(val) {
$searchInput.val(val);
};
$searchInput.on('focus', function() {
$(this).addClass('focus');
});
$searchInput.on('blur', function() {
$(this).removeClass('focus');
});
$searchInput.on('input', window.throttle(function() {
var val = $(this).val();
if (val === '' || typeof val !== 'string') {
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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