/**
* @param $url: url of the requested resource
*
* @param $http_opts: Options for the HTTP request, keys:
* - method: request method (GET, PROPFIND, etc.)
* - content: request body
* - header: array of HTTP request headers as simple strings
*
* @param $carddav: config array containing at least the keys
* - url: base url, used if $url is a relative url
* - username
* - password: password (encoded/encrypted form as stored in DB)
*/
public function cdfopen($url, $http_opts, $carddav)
{
$redirect_limit = 5;
$rcmail = rcmail::get_instance();
$username = $carddav['username'];
$password = self::decrypt_password($carddav['password']);
$baseurl = $carddav['url'];
// determine calling function for debug output
$caller = self::getCaller();
$local = $rcmail->user->get_username('local');
$domain = $rcmail->user->get_username('domain');
// Substitute Placeholders
if ($username == '%u') {
$username = $_SESSION['username'];
}
if ($username == '%l') {
$username = $local;
}
if ($password == '%p') {
$password = $rcmail->decrypt($_SESSION['password']);
}
$baseurl = str_replace("%u", $username, $carddav['url']);
$url = str_replace("%u", $username, $url);
$baseurl = str_replace("%l", $local, $baseurl);
$url = str_replace("%l", $local, $url);
$baseurl = str_replace("%d", $domain, $baseurl);
$url = str_replace("%d", $domain, $url);
// if $url is relative, prepend the base url
$url = self::concaturl($baseurl, $url);
do {
$isRedirect = false;
if (self::DEBUG) {
$this->debug("{$caller} requesting {$url} [RL {$redirect_limit}]");
}
$httpful = \Httpful\Request::init();
$scheme = strtolower($carddav['authentication_scheme']);
if ($scheme != "basic" && $scheme != "digest") {
/* figure out authentication */
$httpful->addHeader("User-Agent", "RCM CardDAV plugin/1.0.0");
$httpful->uri($url);
$httpful->method($http_opts['method']);
$error = $httpful->send();
$httpful = \Httpful\Request::init();
$scheme = "unknown";
if (preg_match("/\\bDigest\\b/i", $error->headers["www-authenticate"])) {
$httpful->digestAuth($username, $password);
$scheme = "digest";
} else {
if (preg_match("/\\bBasic\\b/i", $error->headers["www-authenticate"])) {
$httpful->basicAuth($username, $password);
$scheme = "basic";
}
}
if ($scheme != "unknown") {
carddav_backend::update_addressbook($carddav['abookid'], array("authentication_scheme"), array($scheme));
}
} else {
if (strtolower($scheme) == "digest") {
$httpful->digestAuth($username, $password);
} else {
if (strtolower($scheme) == "basic") {
$httpful->basicAuth($username, $password);
}
}
}
$httpful->addHeader("User-Agent", "RCM CardDAV plugin/1.0.0");
$httpful->uri($url);
$httpful->method($http_opts['method']);
if (array_key_exists('content', $http_opts) && strlen($http_opts['content']) > 0 && $http_opts['method'] != "GET") {
$httpful->body($http_opts['content']);
}
if (array_key_exists('header', $http_opts)) {
foreach ($http_opts['header'] as $header) {
$h = explode(": ", $header);
if (strlen($h[0]) > 0 && strlen($h[1]) > 0) {
// Only append headers with key AND value
$httpful->addHeader($h[0], $h[1]);
}
}
}
$reply = $httpful->send();
$scode = $reply->code;
if (self::DEBUG) {
$this->debug("Code: {$scode}");
}
$isRedirect = $scode > 300 && $scode < 304 || $scode == 307;
if ($isRedirect && strlen($reply->headers['location']) > 0) {
$url = self::concaturl($baseurl, $reply->headers['location']);
} else {
$retVal["status"] = $scode;
$retVal["headers"] = $reply->headers;
$retVal["body"] = $reply->raw_body;
if (self::DEBUG_HTTP) {
$this->debug_http("success: " . var_export($retVal, true));
}
return $retVal;
}
} while ($redirect_limit-- > 0 && $isRedirect);
return $reply->code;
}
