From 863364ac0e9a4f705898b2b3a4f5b2eba9b3fabb Mon Sep 17 00:00:00 2001
From: Hugo A <hugo@alves.gq>
Date: Mon, 15 Aug 2022 12:06:27 +0200
Subject: [PATCH] branche initiale

---
 index.php | 334 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 334 insertions(+)
 create mode 100755 index.php

diff --git a/index.php b/index.php
new file mode 100755
index 0000000..e199ba6
--- /dev/null
+++ b/index.php
@@ -0,0 +1,334 @@
+<?php // This file is part of LibreQR, which is distributed under the GNU AGPLv3+ license
+
+use Endroid\QrCode\Builder\Builder;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelLow;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelMedium;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelQuartile;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelHigh;
+use Endroid\QrCode\Color\Color;
+
+require "config.inc.php";
+require "vendor/autoload.php";
+
+define("LIBREQR_VERSION", "2.0.0");
+
+// Defines the locale to be used
+$locale = DEFAULT_LOCALE;
+if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
+	$clientLocales = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
+	$clientLocales = preg_replace("#[A-Z0-9]|q=|;|-|\.#", "", $clientLocales);
+	$clientLocales = explode(',', $clientLocales);
+	foreach (array_diff(scandir("locales"), array('..', '.')) as $key => $localeFile)
+		$availableLocales[$key] = basename($localeFile, ".php");
+	foreach ($clientLocales as $clientLocale) {
+		if (in_array($clientLocale, $availableLocales)) {
+			$locale = $clientLocale;
+			break;
+		}
+	}
+}
+require "locales/" . $locale . ".php";
+
+$params = array(
+	"txt" => "",
+	"redundancy" => DEFAULT_REDUNDANCY,
+	"margin" => DEFAULT_MARGIN,
+	"size" => DEFAULT_SIZE,
+	"bgColor" => DEFAULT_BGCOLOR,
+	"fgColor" => DEFAULT_FGCOLOR,
+);
+
+$qrCodeAvailable = NULL;
+
+if (
+	isset($_POST['txt'])
+	AND isset($_POST['redundancy'])
+	AND isset($_POST['margin'])
+	AND isset($_POST['size'])
+	AND isset($_POST['bgColor'])
+	AND isset($_POST['fgColor'])
+) {
+
+	$qrCodeAvailable = true;
+
+	if (strlen($_POST['txt']) >= 1 AND strlen($_POST['txt']) <= 4096) {
+		$params['txt'] = $_POST['txt'];
+	} else {
+		http_response_code(400);
+		exit("Wrong value for txt");
+	}
+
+	if ($_POST['redundancy'] === "low" OR $_POST['redundancy'] === "medium" OR $_POST['redundancy'] === "quartile" OR $_POST['redundancy'] === "high") {
+		$params['redundancy'] = $_POST['redundancy'];
+	} else {
+		http_response_code(400);
+		exit("Wrong value for redundancy");
+	}
+
+	if (is_numeric($_POST['margin']) AND $_POST['margin'] >= 0 AND $_POST['margin'] <= 1024) {
+		$params['margin'] = $_POST['margin'];
+	} else if (empty($_POST['margin'])) {
+		$params['margin'] = NULL;
+	} else {
+		http_response_code(400);
+		exit("Wrong value for margin");
+	}
+
+	if (is_numeric($_POST['size']) AND $_POST['size'] >= 25 AND $_POST['size'] <= 4096) {
+		$params['size'] = $_POST['size'];
+	} else if (empty($_POST['size'])) {
+		$params['size'] = NULL;
+	} else {
+		http_response_code(400);
+		exit("Wrong value for size");
+	}
+
+	if (preg_match("/^#[abcdefABCDEF0-9]{6}$/", $_POST['bgColor'])) {
+		$params['bgColor'] = substr($_POST['bgColor'], -6);
+	} else {
+		http_response_code(400);
+		exit("Wrong value for bgColor");
+	}
+
+	if (preg_match("/^#[abcdefABCDEF0-9]{6}$/", $_POST['fgColor'])) {
+		$params['fgColor'] = substr($_POST['fgColor'], -6);
+	} else {
+		http_response_code(400);
+		exit("Wrong value for fgColor");
+	}
+
+	$validFormSubmitted = true;
+
+	$rgbBgColor = array(
+		'r' => hexdec(substr($params['bgColor'],0,2)),
+		'g' => hexdec(substr($params['bgColor'],2,2)),
+		'b' => hexdec(substr($params['bgColor'],4,2)),
+	);
+
+	$qrCode = Builder::create()
+	->data($params['txt']);
+	if (!is_null($params['margin']))
+		$qrCode->margin($params['margin']);
+	if (!is_null($params['size']))
+		$qrCode->size($params['size']);
+
+	if ($params['redundancy'] === "high")
+		$qrCode->errorCorrectionLevel(new ErrorCorrectionLevelHigh());
+	else if ($params['redundancy'] === "quartile")
+		$qrCode->errorCorrectionLevel(new ErrorCorrectionLevelQuartile());
+	else if ($params['redundancy'] === "medium")
+		$qrCode->errorCorrectionLevel(new ErrorCorrectionLevelMedium());
+	else if ($params['redundancy'] === "low")
+		$qrCode->errorCorrectionLevel(new ErrorCorrectionLevelLow());
+
+	$qrCode
+	->backgroundColor(new Color(
+		$rgbBgColor['r'],
+		$rgbBgColor['g'],
+		$rgbBgColor['b']
+	))
+	->foregroundColor(new Color(
+		hexdec(substr($params['fgColor'],0,2)),
+		hexdec(substr($params['fgColor'],2,2)),
+		hexdec(substr($params['fgColor'],4,2))
+	));
+
+	try {
+		$result = $qrCode->build();
+	} catch (Exception $ex) {
+		http_response_code(500);
+		$qrCodeAvailable = false;
+		error_log("LibreQR encountered an error while generating a QR code: " . $ex);
+	}
+}
+
+?>
+<!DOCTYPE html>
+<html lang="<?= $locale ?>">
+	<head>
+		<meta charset="utf-8">
+		<title>LibreQR · <?= $loc['subtitle'] ?></title>
+		<meta name="description" content="<?= $loc['description'] ?>">
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+		<meta name="color-scheme" content="dark light">
+		<meta name="application-name" content="LibreQR">
+		<meta name="referrer" content="no-referrer">
+		<meta http-equiv="Content-Security-Policy" content="default-src 'none'; img-src 'self' data:; style-src 'self'; form-action 'self';">
+		<link rel="stylesheet" type="text/css" href="resources/chapril-banner.css">
+<?php
+require "themes/" . THEME . "/theme.php";
+$colorScheme['theme'] = THEME;
+
+$options = array('cache_dir' => 'css/', 'compress' => true);
+$cssFileName = Less_Cache::Get(array("style.less" => ""), $options, $colorScheme);
+?>
+		<link rel="stylesheet" media="screen" href="css/<?= $cssFileName ?>">
+<?php
+foreach($themeDimensionsIcons as $dimFav) // Set all icons dimensions
+	echo '		<link rel="icon" type="image/png" href="themes/' . THEME . '/icons/' . $dimFav . '.png" sizes="' . $dimFav . 'x' . $dimFav . '">' . "\n";
+?>
+	</head>
+
+	<body>
+
+		<header>
+			<a id="linkTitles" href="./">
+				<img style"width: 64px; height: 64px;" alt="" id="logo" src="resources/logo.png"">
+				<div id="titles">
+					<h1>QrcodeChaprilOrg</h1>
+					<h2>Générateur de codes QR</h2>
+				</div>
+			</a>
+		</header>
+
+		<form method="post" action="./#output">
+
+			<div class="param" id="txtParam">
+				<details>
+					<summary><label for="txt"><?= $loc['label_content'] ?></label></summary>
+					<div class="helpText">
+						<?= $loc['help_content'] ?>
+					</div>
+				</details>
+				<textarea rows="3" required="" id="txt" placeholder="<?= $loc['placeholder'] ?>" name="txt"><?= htmlspecialchars($params['txt']) ?></textarea>
+			</div>
+
+			<div id="sideParams">
+
+				<div class="param">
+					<details>
+						<summary><label for="redundancy"><?= $loc['label_redundancy'] ?></label></summary>
+						<p class="helpText">
+							<?= $loc['help_redundancy'] ?>
+						</p>
+					</details>
+					<select id="redundancy" name="redundancy">
+						<option <?php if ($params['redundancy'] === "low") echo 'selected="" '; ?>value="low">L - 7%</option>
+						<option <?php if ($params['redundancy'] === "medium") echo 'selected="" '; ?>value="medium">M - 15%</option>
+						<option <?php if ($params['redundancy'] === "quartile") echo 'selected="" '; ?>value="quartile">Q - 25%</option>
+						<option <?php if ($params['redundancy'] === "high") echo 'selected="" '; ?>value="high">H - 30%</option>
+					</select>
+				</div>
+
+				<div class="param">
+					<details>
+						<summary><label for="margin"><?= $loc['label_margin'] ?></label></summary>
+						<p class="helpText">
+							<?= $loc['help_margin'] ?>
+						</p>
+					</details>
+					<input type="number" id="margin" placeholder="<?= DEFAULT_MARGIN ?>" name="margin" required="" min="0" max="1024" value="<?= htmlspecialchars($params['margin']) ?>">
+				</div>
+
+				<div class="param">
+					<details>
+						<summary><label for="size"><?= $loc['label_size'] ?></label></summary>
+						<p class="helpText">
+							<?= $loc['help_size'] ?>
+						</p>
+					</details>
+					<input type="number" id="size" placeholder="<?= DEFAULT_SIZE ?>" name="size" required="" min="25" max="4096" value="<?= htmlspecialchars($params['size']) ?>">
+				</div>
+
+			</div>
+
+			<div id="colors">
+				<div class="param">
+					<label for="bgColor"><?= $loc['label_bgColor'] ?></label>
+					<input type="color" name="bgColor" id="bgColor" value="#<?= htmlspecialchars($params['bgColor']) ?>">
+				</div>
+				<div class="param">
+					<label for="fgColor"><?= $loc['label_fgColor'] ?></label>
+					<input type="color" name="fgColor" id="fgColor" value="#<?= htmlspecialchars($params['fgColor']) ?>">
+				</div>
+			</div>
+
+			<div class="centered">
+				<input class="button" type="submit" value="<?= $loc['button_create'] ?>" />
+			</div>
+
+		</form>
+
+<?php
+
+if ($qrCodeAvailable) {
+	$dataUri = $result->getDataUri();
+
+	$qrSize = $params['size'] + 2 * $params['margin'];
+
+?>
+
+		<section id="output">
+			<div class="centered" id="downloadQR">
+				<a href="<?= $dataUri ?>" class="button" download="<?= htmlspecialchars($params['txt']); ?>.png"><?= $loc['button_download'] ?></a>
+			</div>
+
+			<div class="centered" id="showOnlyQR">
+				<a title="<?= $loc['title_showOnlyQR'] ?>" href="<?= $dataUri ?>"><img width="<?= $qrSize ?>" height="<?= $qrSize ?>" alt='<?= $loc['alt_QR_before'] ?><?= htmlspecialchars($params['txt']); ?><?= $loc['alt_QR_after'] ?>' id="qrCode"<?php
+
+	// Compute the difference between the QR code and theme background colors
+	$diffLight = abs($rgbBgColor['r']-hexdec(substr($colorScheme['bg-light'],-6,2))) + abs($rgbBgColor['g']-hexdec(substr($colorScheme['bg-light'],-4,2))) + abs($rgbBgColor['b']-hexdec(substr($colorScheme['bg-light'],-2,2)));
+	$diffDark = abs($rgbBgColor['r']-hexdec(substr($colorScheme['bg-dark'],-6,2))) + abs($rgbBgColor['g']-hexdec(substr($colorScheme['bg-dark'],-4,2))) + abs($rgbBgColor['b']-hexdec(substr($colorScheme['bg-dark'],-2,2)));
+
+	// Determine whether a CSS corner is needed to let the user see the margin of the QR code
+	$contrastThreshold = 64;
+	if ($diffLight < $contrastThreshold)
+		echo " class='needLightContrast'";
+	if ($diffDark < $contrastThreshold)
+		echo " class='needDarkContrast'";
+	?> src="<?= $dataUri ?>"></a>
+			</div>
+		</section>
+
+<?php
+} else if ($qrCodeAvailable === false) {
+	echo "		<p><strong>" . $loc['error_generation'] . "</strong></p></body></html>";
+}
+?>
+
+		<footer>
+
+			<section id="info" class="metaText">
+				<?= $loc['metaText_qr'] ?>
+			</section>
+
+<?php if (CUSTOM_TEXT_ENABLED) { ?>
+			<section class="metaText">
+				<?= CUSTOM_TEXT ?>
+			</section>
+<?php } ?>
+
+			<section class="metaText">
+				<small><?= $loc['metaText_legal'] ?></small>
+			</section>
+
+		</footer>
+
+	</body>
+<nav class="chapril-banniere-Nav">
+    <div class="chapril-banniere-Logo" aria-hidden="true">
+        <a href="https://www.chapril.org"><img alt="" src="resources/chapril-banner-logo.png"></a>
+    </div>
+    <div class="chapril-banniere-Menu" aria-hidden="true">
+        <details>
+            <summary>
+                <span></span>
+                <span></span>
+                <span></span>
+            </summary>
+            <div><a href="https://www.chapril.org/">Accueil Chapril</a></div>
+            <div><a href="https://www.chapril.org/services.html">Services libres</a></div>
+            <div><a href="https://pouet.april.org/@aprilorg">Nous suivre</a></div>
+            <div><a href="https://www.chapril.org/cgu.html">CGU</a></div>
+            <div><a href="https://www.chapril.org/a-propos.html">Mentions légales</a></div>
+            <div><a href="https://www.chapril.org/contact.html">Nous contacter</a></div>
+        </details>
+    </div>
+    <div class="chapril-banniere-Entree"><a href="https://www.chapril.org/">Accueil Chapril</a></div>
+    <div class="chapril-banniere-Entree"><a href="https://www.chapril.org/services.html">Services libres</a></div>
+    <div class="chapril-banniere-Entree"><a href="https://pouet.april.org/@aprilorg">Nous suivre</a></div>
+    <div class="chapril-banniere-Entree"><a href="https://www.chapril.org/cgu.html">CGU</a></div>
+    <div class="chapril-banniere-Entree"><a href="https://www.chapril.org/a-propos.html">Mentions légales</a></div>
+    <div class="chapril-banniere-Entree"><a href="https://www.chapril.org/contact.html">Nous contacter</a></div>
+ </nav>
+</html>