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HouseHub/includes/icloud_caldav.php
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Cedric d660d2cc7a
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calDAV v2
2026-05-13 15:54:10 +02:00

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PHP
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<?php
/**
* Normalise le mot de passe dapplication Apple (supprime les espaces, garde les tirets).
*/
function hh_normalize_apple_app_password(string $password): string
{
return preg_replace('/\s+/', '', trim($password));
}
function hh_caldav_is_icloud_well_known_root(string $url): bool
{
$parts = parse_url(rtrim(trim($url), '/'));
if (empty($parts['scheme']) || empty($parts['host'])) {
return false;
}
$host = strtolower($parts['host']);
if ($host !== 'caldav.icloud.com') {
return false;
}
$path = $parts['path'] ?? '';
return $path === '' || $path === '/';
}
function hh_caldav_resolve_href(string $againstUrl, string $href): string
{
$href = trim($href);
if ($href === '') {
return $againstUrl;
}
if (str_starts_with($href, 'http://') || str_starts_with($href, 'https://')) {
return $href;
}
$parts = parse_url($againstUrl);
$scheme = $parts['scheme'] ?? 'https';
$host = $parts['host'] ?? '';
$port = isset($parts['port']) ? ':' . $parts['port'] : '';
if ($href[0] === '/') {
return $scheme . '://' . $host . $port . $href;
}
$base = preg_replace('#/[^/]*$#', '/', $againstUrl);
return rtrim($base, '/') . '/' . ltrim($href, '/');
}
/**
* @return array{code:int, body:string}
*/
function hh_caldav_propfind(string $url, string $username, string $password, string $xml, string $depth = '0'): array
{
$ch = curl_init($url);
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_TIMEOUT => 25,
CURLOPT_CUSTOMREQUEST => 'PROPFIND',
CURLOPT_HTTPAUTH => CURLAUTH_BASIC,
CURLOPT_USERPWD => $username . ':' . $password,
CURLOPT_HTTPHEADER => [
'Content-Type: application/xml; charset=utf-8',
'Depth: ' . $depth,
],
CURLOPT_POSTFIELDS => $xml,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_MAXREDIRS => 10,
]);
$body = curl_exec($ch);
$code = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($body === false) {
return ['code' => 0, 'body' => ''];
}
return ['code' => $code, 'body' => $body];
}
function hh_caldav_first_href_by_element(string $xml, string $parentLocalName): ?string
{
$dom = new DOMDocument();
if (!@$dom->loadXML($xml)) {
return null;
}
$xpath = new DOMXPath($dom);
$nodes = $xpath->query("//*[local-name()='{$parentLocalName}']//*[local-name()='href']");
if ($nodes->length === 0) {
return null;
}
return trim($nodes->item(0)->textContent);
}
/**
* @return list<array{href:string, display:string}>
*/
function hh_caldav_parse_calendar_collections(string $xml): array
{
$dom = new DOMDocument();
if (!@$dom->loadXML($xml)) {
return [];
}
$xpath = new DOMXPath($dom);
$responses = $xpath->query("//*[local-name()='response']");
$out = [];
foreach ($responses as $resp) {
$hrefNodes = $xpath->query(".//*[local-name()='href']", $resp);
if ($hrefNodes->length === 0) {
continue;
}
$href = trim($hrefNodes->item(0)->textContent);
$cal = $xpath->query(".//*[local-name()='resourcetype']/*[local-name()='calendar']", $resp);
if ($cal->length === 0 || $href === '') {
continue;
}
$display = '';
$dn = $xpath->query(".//*[local-name()='displayname']", $resp);
if ($dn->length > 0) {
$display = trim($dn->item(0)->textContent);
}
$out[] = ['href' => $href, 'display' => $display];
}
return $out;
}
/**
* Depuis la racine iCloud (https://caldav.icloud.com), découvre lURL dun calendrier (par défaut « Calendar » / « Calendrier », sinon le premier).
*
* @throws RuntimeException
*/
function hh_icloud_discover_default_calendar_url(string $username, string $password): string
{
$password = hh_normalize_apple_app_password($password);
$root = 'https://caldav.icloud.com/';
$xml1 = '<?xml version="1.0" encoding="UTF-8"?>'
. '<propfind xmlns="DAV:">'
. '<prop><current-user-principal/></prop>'
. '</propfind>';
$r1 = hh_caldav_propfind($root, $username, $password, $xml1, '0');
if ($r1['code'] === 401 || $r1['code'] === 403) {
throw new RuntimeException('Identifiant Apple ou mot de passe dapp refusé (HTTP ' . $r1['code'] . ').');
}
if (!in_array($r1['code'], [200, 207], true)) {
throw new RuntimeException('CalDAV racine inaccessible (HTTP ' . $r1['code'] . ').');
}
$principalHref = hh_caldav_first_href_by_element($r1['body'], 'current-user-principal');
if (!$principalHref) {
throw new RuntimeException('Réponse CalDAV inattendue : principal introuvable.');
}
$principalUrl = hh_caldav_resolve_href($root, $principalHref);
$xml2 = '<?xml version="1.0" encoding="UTF-8"?>'
. '<propfind xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">'
. '<prop><C:calendar-home-set/></prop>'
. '</propfind>';
$r2 = hh_caldav_propfind($principalUrl, $username, $password, $xml2, '0');
if (!in_array($r2['code'], [200, 207], true)) {
throw new RuntimeException('Lecture du principal CalDAV impossible (HTTP ' . $r2['code'] . ').');
}
$homeHref = hh_caldav_first_href_by_element($r2['body'], 'calendar-home-set');
if (!$homeHref) {
throw new RuntimeException('Aucun dossier de calendriers (calendar-home-set) trouvé.');
}
$homeUrl = hh_caldav_resolve_href($principalUrl, $homeHref);
$xml3 = '<?xml version="1.0" encoding="UTF-8"?>'
. '<propfind xmlns="DAV:">'
. '<prop><resourcetype/><displayname/></prop>'
. '</propfind>';
$r3 = hh_caldav_propfind($homeUrl, $username, $password, $xml3, '1');
if (!in_array($r3['code'], [200, 207], true)) {
throw new RuntimeException('Liste des calendriers impossible (HTTP ' . $r3['code'] . ').');
}
$entries = hh_caldav_parse_calendar_collections($r3['body']);
if ($entries === []) {
throw new RuntimeException('Aucun calendrier trouvé sur ce compte iCloud.');
}
$preferred = ['calendar', 'calendrier', 'home', 'par défaut', 'default'];
$chosenHref = null;
foreach ($entries as $e) {
$lower = mb_strtolower($e['display']);
foreach ($preferred as $p) {
if ($lower !== '' && str_contains($lower, $p)) {
$chosenHref = $e['href'];
break 2;
}
}
}
if ($chosenHref === null) {
$chosenHref = $entries[0]['href'];
}
return rtrim(hh_caldav_resolve_href($homeUrl, $chosenHref), '/') . '/';
}
/**
* Vérifie quune URL de collection calendrier répond en CalDAV (PROPFIND).
*/
function hh_caldav_test_calendar_collection(string $username, string $password, string $calendarUrl): int
{
$password = hh_normalize_apple_app_password($password);
$xml = '<?xml version="1.0" encoding="UTF-8"?>'
. '<propfind xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">'
. '<prop><resourcetype/><displayname/><C:supported-calendar-component-set/></prop>'
. '</propfind>';
$r = hh_caldav_propfind(rtrim($calendarUrl, '/') . '/', $username, $password, $xml, '0');
return $r['code'];
}
/**
* Si URL = racine iCloud bien connue, découvre et retourne lURL dun calendrier ; sinon retourne lURL telle quelle (trim).
*
* @throws RuntimeException
*/
function hh_icloud_resolve_calendar_url_if_needed(string $username, string $password, string $calendarUrl): string
{
$calendarUrl = trim($calendarUrl);
if (hh_caldav_is_icloud_well_known_root($calendarUrl)) {
return hh_icloud_discover_default_calendar_url($username, $password);
}
return $calendarUrl;
}