--- /dev/null
+/**!
+ * FlexSearch.js v0.7.31 (Compact)
+ * Copyright 2018-2022 Nextapps GmbH
+ * Author: Thomas Wilkerling
+ * Licence: Apache-2.0
+ * https://github.com/nextapps-de/flexsearch
+ */
+(function(self){'use strict';var t;function v(a){return"undefined"!==typeof a?a:!0}function w(a){const b=Array(a);for(let c=0;c<a;c++)b[c]=y();return b}function y(){return Object.create(null)}function aa(a,b){return b.length-a.length}function C(a){return"string"===typeof a}function D(a){return"object"===typeof a};function E(a,b){var c=ba;if(a&&(b&&(a=F(a,b)),this.G&&(a=F(a,this.G)),this.H&&1<a.length&&(a=F(a,this.H)),c||""===c)){a=a.split(c);if(this.filter){b=this.filter;c=a.length;const e=[];for(let d=0,f=0;d<c;d++){const g=a[d];g&&!b[g]&&(e[f++]=g)}a=e}return a}return a}const ba=/[\p{Z}\p{S}\p{P}\p{C}]+/u,ca=/[\u0300-\u036f]/g;
+function H(a,b){const c=Object.keys(a),e=c.length,d=[];let f="",g=0;for(let h=0,k,m;h<e;h++)k=c[h],(m=a[k])?(d[g++]=I(b?"(?!\\b)"+k+"(\\b|_)":k),d[g++]=m):f+=(f?"|":"")+k;f&&(d[g++]=I(b?"(?!\\b)("+f+")(\\b|_)":"("+f+")"),d[g]="");return d}function F(a,b){for(let c=0,e=b.length;c<e&&(a=a.replace(b[c],b[c+1]),a);c+=2);return a}function I(a){return new RegExp(a,"g")}function J(a){let b="",c="";for(let e=0,d=a.length,f;e<d;e++)(f=a[e])!==c&&(b+=c=f);return b};var da={encode:K,B:!1,C:""};function K(a){return E.call(this,(""+a).toLowerCase(),!1)};const ea={},L={};function fa(a){M(a,"add");M(a,"append");M(a,"search");M(a,"update");M(a,"remove")}function M(a,b){a[b+"Async"]=function(){const c=this,e=arguments;var d=e[e.length-1];let f;"function"===typeof d&&(f=d,delete e[e.length-1]);d=new Promise(function(g){setTimeout(function(){c.async=!0;const h=c[b].apply(c,e);c.async=!1;g(h)})});return f?(d.then(f),this):d}};function ha(a,b,c,e){const d=a.length;let f=[],g,h,k=0;e&&(e=[]);for(let m=d-1;0<=m;m--){const n=a[m],u=n.length,q=y();let r=!g;for(let l=0;l<u;l++){const p=n[l],z=p.length;if(z)for(let B=0,A,x;B<z;B++)if(x=p[B],g){if(g[x]){if(!m)if(c)c--;else if(f[k++]=x,k===b)return f;if(m||e)q[x]=1;r=!0}if(e&&(A=(h[x]||0)+1,h[x]=A,A<d)){const G=e[A-2]||(e[A-2]=[]);G[G.length]=x}}else q[x]=1}if(e)g||(h=q);else if(!r)return[];g=q}if(e)for(let m=e.length-1,n,u;0<=m;m--){n=e[m];u=n.length;for(let q=0,r;q<u;q++)if(r=
+n[q],!g[r]){if(c)c--;else if(f[k++]=r,k===b)return f;g[r]=1}}return f}function ja(a,b){const c=y(),e=y(),d=[];for(let f=0;f<a.length;f++)c[a[f]]=1;for(let f=0,g;f<b.length;f++){g=b[f];for(let h=0,k;h<g.length;h++)k=g[h],c[k]&&!e[k]&&(e[k]=1,d[d.length]=k)}return d};const ka={memory:{charset:"latin:extra",A:3,m:4,D:!1},performance:{A:3,m:3,s:!1,context:{depth:2,A:1}},match:{charset:"latin:extra",C:"reverse"},score:{charset:"latin:advanced",A:20,m:3,context:{depth:3,A:9}},"default":{}};function O(a,b){if(!(this instanceof O))return new O(a);var c;let e;a?(C(a)?a=ka[a]:(c=a.preset)&&(a=Object.assign({},c[c],a)),c=a.charset,e=a.lang,C(c)&&(-1===c.indexOf(":")&&(c+=":default"),c=L[c]),C(e)&&(e=ea[e])):a={};let d,f,g=a.context||{};this.encode=a.encode||c&&c.encode||K;this.register=b||y();this.A=d=a.resolution||9;this.C=b=c&&c.C||a.tokenize||"strict";this.depth="strict"===b&&g.depth;this.h=v(g.bidirectional);this.s=f=v(a.optimize);this.D=v(a.fastupdate);this.m=a.minlength||1;this.F=
+a.boost;this.map=f?w(d):y();this.o=d=g.resolution||1;this.l=f?w(d):y();this.B=c&&c.B||a.rtl;this.G=(b=a.matcher||e&&e.G)&&H(b,!1);this.H=(b=a.stemmer||e&&e.H)&&H(b,!0);if(a=b=a.filter||e&&e.filter){a=b;c=y();for(let h=0,k=a.length;h<k;h++)c[a[h]]=1;a=c}this.filter=a}t=O.prototype;t.append=function(a,b){return this.add(a,b,!0)};
+t.add=function(a,b,c,e){if(b&&(a||0===a)){if(!e&&!c&&this.register[a])return this.update(a,b);b=this.encode(b);if(e=b.length){const m=y(),n=y(),u=this.depth,q=this.A;for(let r=0;r<e;r++){let l=b[this.B?e-1-r:r];var d=l.length;if(l&&d>=this.m&&(u||!n[l])){var f=P(q,e,r),g="";switch(this.C){case "full":if(2<d){for(f=0;f<d;f++)for(var h=d;h>f;h--)if(h-f>=this.m){var k=P(q,e,r,d,f);g=l.substring(f,h);Q(this,n,g,k,a,c)}break}case "reverse":if(1<d){for(h=d-1;0<h;h--)g=l[h]+g,g.length>=this.m&&Q(this,n,
+g,P(q,e,r,d,h),a,c);g=""}case "forward":if(1<d){for(h=0;h<d;h++)g+=l[h],g.length>=this.m&&Q(this,n,g,f,a,c);break}default:if(this.F&&(f=Math.min(f/this.F(b,l,r)|0,q-1)),Q(this,n,l,f,a,c),u&&1<e&&r<e-1)for(d=y(),g=this.o,f=l,h=Math.min(u+1,e-r),d[f]=1,k=1;k<h;k++)if((l=b[this.B?e-1-r-k:r+k])&&l.length>=this.m&&!d[l]){d[l]=1;const p=this.h&&l>f;Q(this,m,p?f:l,P(g+(e/2>g?0:1),e,r,h-1,k-1),a,c,p?l:f)}}}}this.D||(this.register[a]=1)}}return this};
+function P(a,b,c,e,d){return c&&1<a?b+(e||0)<=a?c+(d||0):(a-1)/(b+(e||0))*(c+(d||0))+1|0:0}function Q(a,b,c,e,d,f,g){let h=g?a.l:a.map;if(!b[c]||g&&!b[c][g])a.s&&(h=h[e]),g?(b=b[c]||(b[c]=y()),b[g]=1,h=h[g]||(h[g]=y())):b[c]=1,h=h[c]||(h[c]=[]),a.s||(h=h[e]||(h[e]=[])),f&&h.includes(d)||(h[h.length]=d,a.D&&(a=a.register[d]||(a.register[d]=[]),a[a.length]=h))}
+t.search=function(a,b,c){c||(!b&&D(a)?(c=a,a=c.query):D(b)&&(c=b));let e=[],d;let f,g=0;if(c){a=c.query||a;b=c.limit;g=c.offset||0;var h=c.context;f=c.suggest}if(a&&(a=this.encode(""+a),d=a.length,1<d)){c=y();var k=[];for(let n=0,u=0,q;n<d;n++)if((q=a[n])&&q.length>=this.m&&!c[q])if(this.s||f||this.map[q])k[u++]=q,c[q]=1;else return e;a=k;d=a.length}if(!d)return e;b||(b=100);h=this.depth&&1<d&&!1!==h;c=0;let m;h?(m=a[0],c=1):1<d&&a.sort(aa);for(let n,u;c<d;c++){u=a[c];h?(n=la(this,e,f,b,g,2===d,u,
+m),f&&!1===n&&e.length||(m=u)):n=la(this,e,f,b,g,1===d,u);if(n)return n;if(f&&c===d-1){k=e.length;if(!k){if(h){h=0;c=-1;continue}return e}if(1===k)return ma(e[0],b,g)}}return ha(e,b,g,f)};
+function la(a,b,c,e,d,f,g,h){let k=[],m=h?a.l:a.map;a.s||(m=na(m,g,h,a.h));if(m){let n=0;const u=Math.min(m.length,h?a.o:a.A);for(let q=0,r=0,l,p;q<u;q++)if(l=m[q])if(a.s&&(l=na(l,g,h,a.h)),d&&l&&f&&(p=l.length,p<=d?(d-=p,l=null):(l=l.slice(d),d=0)),l&&(k[n++]=l,f&&(r+=l.length,r>=e)))break;if(n){if(f)return ma(k,e,0);b[b.length]=k;return}}return!c&&k}function ma(a,b,c){a=1===a.length?a[0]:[].concat.apply([],a);return c||a.length>b?a.slice(c,c+b):a}
+function na(a,b,c,e){c?(e=e&&b>c,a=(a=a[e?b:c])&&a[e?c:b]):a=a[b];return a}t.contain=function(a){return!!this.register[a]};t.update=function(a,b){return this.remove(a).add(a,b)};t.remove=function(a,b){const c=this.register[a];if(c){if(this.D)for(let e=0,d;e<c.length;e++)d=c[e],d.splice(d.indexOf(a),1);else R(this.map,a,this.A,this.s),this.depth&&R(this.l,a,this.o,this.s);b||delete this.register[a]}return this};
+function R(a,b,c,e,d){let f=0;if(a.constructor===Array)if(d)b=a.indexOf(b),-1!==b?1<a.length&&(a.splice(b,1),f++):f++;else{d=Math.min(a.length,c);for(let g=0,h;g<d;g++)if(h=a[g])f=R(h,b,c,e,d),e||f||delete a[g]}else for(let g in a)(f=R(a[g],b,c,e,d))||delete a[g];return f}fa(O.prototype);function T(a){if(!(this instanceof T))return new T(a);var b=a.document||a.doc||a,c;this.F=[];this.h=[];this.o=[];this.register=y();this.key=(c=b.key||b.id)&&U(c,this.o)||"id";this.D=v(a.fastupdate);this.l=(c=b.store)&&!0!==c&&[];this.store=c&&y();this.async=!1;c=y();let e=b.index||b.field||b;C(e)&&(e=[e]);for(let d=0,f,g;d<e.length;d++)f=e[d],C(f)||(g=f,f=f.field),g=D(g)?Object.assign({},a,g):a,this.I||(c[f]=new O(g,this.register)),this.F[d]=U(f,this.o),this.h[d]=f;if(this.l)for(a=b.store,C(a)&&(a=
+[a]),b=0;b<a.length;b++)this.l[b]=U(a[b],this.o);this.index=c}function U(a,b){const c=a.split(":");let e=0;for(let d=0;d<c.length;d++)a=c[d],0<=a.indexOf("[]")&&(a=a.substring(0,a.length-2))&&(b[e]=!0),a&&(c[e++]=a);e<c.length&&(c.length=e);return 1<e?c:c[0]}function oa(a,b){if(C(b))a=a[b];else for(let c=0;a&&c<b.length;c++)a=a[b[c]];return a}
+function V(a,b,c,e,d){a=a[d];if(e===c.length-1)b[d]=a;else if(a)if(a.constructor===Array)for(b=b[d]=Array(a.length),d=0;d<a.length;d++)V(a,b,c,e,d);else b=b[d]||(b[d]=y()),d=c[++e],V(a,b,c,e,d)}function W(a,b,c,e,d,f,g,h){if(a=a[g])if(e===b.length-1){if(a.constructor===Array){if(c[e]){for(b=0;b<a.length;b++)d.add(f,a[b],!0,!0);return}a=a.join(" ")}d.add(f,a,h,!0)}else if(a.constructor===Array)for(g=0;g<a.length;g++)W(a,b,c,e,d,f,g,h);else g=b[++e],W(a,b,c,e,d,f,g,h)}t=T.prototype;
+t.add=function(a,b,c){D(a)&&(b=a,a=oa(b,this.key));if(b&&(a||0===a)){if(!c&&this.register[a])return this.update(a,b);for(let e=0,d,f;e<this.h.length;e++)f=this.h[e],d=this.F[e],C(d)&&(d=[d]),W(b,d,this.o,0,this.index[f],a,d[0],c);if(this.store&&(!c||!this.store[a])){let e;if(this.l){e=y();for(let d=0,f;d<this.l.length;d++)f=this.l[d],C(f)?e[f]=b[f]:V(b,e,f,0,f[0])}this.store[a]=e||b}}return this};t.append=function(a,b){return this.add(a,b,!0)};t.update=function(a,b){return this.remove(a).add(a,b)};
+t.remove=function(a){D(a)&&(a=oa(a,this.key));if(this.register[a]){for(let b=0;b<this.h.length&&(this.index[this.h[b]].remove(a,!this.I),!this.D);b++);this.store&&delete this.store[a];delete this.register[a]}return this};
+t.search=function(a,b,c,e){c||(!b&&D(a)?(c=a,a=""):D(b)&&(c=b,b=0));let d=[],f=[],g,h,k,m,n,u,q=0;if(c)if(c.constructor===Array)k=c,c=null;else{a=c.query||a;k=(g=c.pluck)||c.index||c.field;m=!1;h=this.store&&c.enrich;n="and"===c.bool;b=c.limit||b||100;u=c.offset||0;if(m&&(C(m)&&(m=[m]),!a)){for(let l=0,p;l<m.length;l++)if(p=pa.call(this,m[l],b,u,h))d[d.length]=p,q++;return q?d:[]}C(k)&&(k=[k])}k||(k=this.h);n=n&&(1<k.length||m&&1<m.length);const r=!e&&(this.I||this.async)&&[];for(let l=0,p,z,B;l<
+k.length;l++){let A;z=k[l];C(z)||(A=z,z=A.field,a=A.query||a,b=A.limit||b);if(r)r[l]=this.index[z].searchAsync(a,b,A||c);else{e?p=e[l]:p=this.index[z].search(a,b,A||c);B=p&&p.length;if(m&&B){const x=[];let G=0;n&&(x[0]=[p]);for(let S=0,ia,N;S<m.length;S++)if(ia=m[S],B=(N=this.J[ia])&&N.length)G++,x[x.length]=n?[N]:N;G&&(p=n?ha(x,b||100,u||0):ja(p,x),B=p.length)}if(B)f[q]=z,d[q++]=p;else if(n)return[]}}if(r){const l=this;return new Promise(function(p){Promise.all(r).then(function(z){p(l.search(a,b,
+c,z))})})}if(!q)return[];if(g&&(!h||!this.store))return d[0];for(let l=0,p;l<f.length;l++){p=d[l];p.length&&h&&(p=qa.call(this,p));if(g)return p;d[l]={field:f[l],result:p}}return d};function pa(a,b,c,e){let d=this.J[a],f=d&&d.length-c;if(f&&0<f){if(f>b||c)d=d.slice(c,c+b);e&&(d=qa.call(this,d));return{tag:a,result:d}}}function qa(a){const b=Array(a.length);for(let c=0,e;c<a.length;c++)e=a[c],b[c]={id:e,doc:this.store[e]};return b}t.contain=function(a){return!!this.register[a]};t.get=function(a){return this.store[a]};
+t.set=function(a,b){this.store[a]=b;return this};fa(T.prototype);var sa={encode:ra,B:!1,C:""};const ta=[I("[\u00e0\u00e1\u00e2\u00e3\u00e4\u00e5]"),"a",I("[\u00e8\u00e9\u00ea\u00eb]"),"e",I("[\u00ec\u00ed\u00ee\u00ef]"),"i",I("[\u00f2\u00f3\u00f4\u00f5\u00f6\u0151]"),"o",I("[\u00f9\u00fa\u00fb\u00fc\u0171]"),"u",I("[\u00fd\u0177\u00ff]"),"y",I("\u00f1"),"n",I("[\u00e7c]"),"k",I("\u00df"),"s",I(" & ")," and "];function ra(a){var b=a=""+a;b.normalize&&(b=b.normalize("NFD").replace(ca,""));return E.call(this,b.toLowerCase(),!a.normalize&&ta)};var va={encode:ua,B:!1,C:"strict"};const wa=/[^a-z0-9]+/,xa={b:"p",v:"f",w:"f",z:"s",x:"s","\u00df":"s",d:"t",n:"m",c:"k",g:"k",j:"k",q:"k",i:"e",y:"e",u:"o"};function ua(a){a=ra.call(this,a).join(" ");const b=[];if(a){const c=a.split(wa),e=c.length;for(let d=0,f,g=0;d<e;d++)if((a=c[d])&&(!this.filter||!this.filter[a])){f=a[0];let h=xa[f]||f,k=h;for(let m=1;m<a.length;m++){f=a[m];const n=xa[f]||f;n&&n!==k&&(h+=n,k=n)}b[g++]=h}}return b};var za={encode:ya,B:!1,C:""};const Aa=[I("ae"),"a",I("oe"),"o",I("sh"),"s",I("th"),"t",I("ph"),"f",I("pf"),"f",I("(?![aeo])h(?![aeo])"),"",I("(?!^[aeo])h(?!^[aeo])"),""];function ya(a,b){a&&(a=ua.call(this,a).join(" "),2<a.length&&(a=F(a,Aa)),b||(1<a.length&&(a=J(a)),a&&(a=a.split(" "))));return a||[]};var Ca={encode:Ba,B:!1,C:""};const Da=I("(?!\\b)[aeo]");function Ba(a){a&&(a=ya.call(this,a,!0),1<a.length&&(a=a.replace(Da,"")),1<a.length&&(a=J(a)),a&&(a=a.split(" ")));return a||[]};L["latin:default"]=da;L["latin:simple"]=sa;L["latin:balance"]=va;L["latin:advanced"]=za;L["latin:extra"]=Ca;const X=self;let Y;const Z={Index:O,Document:T,Worker:null,registerCharset:function(a,b){L[a]=b},registerLanguage:function(a,b){ea[a]=b}};(Y=X.define)&&Y.amd?Y([],function(){return Z}):X.exports?X.exports=Z:X.FlexSearch=Z;}(this));
--- /dev/null
+<?php
+
+// Set the e-mail address that submission should be sent to.
+$address = 'danix@danix.xyz';
+
+// Set the e-mail subject prefix.
+$prefix = 'Website feedback';
+
+// DO NOT EDIT ANYTHING BELOW UNLESS YOU KNOW WHAT YOU ARE DOING.
+
+$error = false;
+$success = false;
+
+// Check that the submission address is valid.
+if ((bool) filter_var(trim($address), FILTER_VALIDATE_EMAIL)) {
+ // Also set sender/return path header to this address to avoid SPF errors.
+ $to = $sender = trim($address);
+}
+else {
+ $error = true;
+}
+
+// Check that referer is local server.
+if (!isset($_SERVER['HTTP_REFERER']) || (parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST) != $_SERVER['SERVER_NAME'])) {
+ exit('Direct access not permitted');
+}
+
+// Check that this is a post request.
+if ($_SERVER['REQUEST_METHOD'] != 'POST' || empty($_POST)) {
+ $error = true;
+}
+
+// Check if fake url field is filled in, i.e. spam bot.
+if (!empty($_POST['url'])) {
+ $error = true;
+}
+
+// Check that e-mail address is valid.
+if ((bool) filter_var(trim($_POST['email']), FILTER_VALIDATE_EMAIL)) {
+ $email = trim($_POST['email']);
+}
+else {
+ $error = true;
+}
+
+if (!$error) {
+ // Construct the mail with headers.
+ $name = _contact_clean_str($_POST['name'], ENT_QUOTES, true, true);
+ $prefix = _contact_clean_str($prefix, ENT_NOQUOTES, true, true);
+ $subject = _contact_clean_str($_POST['subject'], ENT_NOQUOTES, true, true);
+ $subject = "[$prefix] $subject";
+ $message = _contact_clean_str($_POST['message'], ENT_NOQUOTES);
+ $lines = explode("\n", $message);
+ array_walk($lines, '_contact_ff_wrap');
+ $message = implode("\n", $lines);
+ $headers = [
+ 'From' => "$name <$email>",
+ 'Sender' => $sender,
+ 'Return-Path' => $sender,
+ 'MIME-Version' => '1.0',
+ 'Content-Type' => 'text/plain; charset=UTF-8; format=flowed; delsp=yes',
+ 'Content-Transfer-Encoding' => '8Bit',
+ 'X-Mailer' => 'Hugo - Zen',
+ ];
+ $mime_headers = [];
+ foreach ($headers as $key => $value) {
+ $mime_headers[] = "$key: $value";
+ }
+ $mail_headers = join("\n", $mime_headers);
+
+ // Send the mail, suppressing errors and setting Return-Path with the "-f" option.
+ $success = @mail($to, $subject, $message, $mail_headers, '-f' . $sender);
+}
+
+$status = $success ? 'submitted' : 'error';
+$contact_form_url = strtok($_SERVER['HTTP_REFERER'], '?');
+
+// Redirect back to contact form with status.
+header('Location: ' . $contact_form_url . '?' . $status, TRUE, 302);
+exit;
+
+function _contact_ff_wrap(&$line) {
+ $line = wordwrap($line, 72, " \n");
+}
+
+function _contact_clean_str($str, $quotes, $strip = false, $encode = false) {
+ if ($strip) {
+ $str = strip_tags($str);
+ }
+
+ $str = htmlspecialchars(trim($str), $quotes, 'UTF-8');
+
+ if ($encode && preg_match('/[^\x20-\x7E]/', $str)) {
+ $str = '=?UTF-8?B?' . base64_encode($str) . '?=';
+ }
+
+ return $str;
+}