996 lines
27 KiB
PHP
996 lines
27 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @file include/network.php
|
|
*/
|
|
|
|
use Friendica\App;
|
|
use Friendica\Core\System;
|
|
use Friendica\Core\Config;
|
|
use Friendica\Network\Probe;
|
|
|
|
require_once("include/xml.php");
|
|
|
|
/**
|
|
* @brief Curl wrapper
|
|
*
|
|
* If binary flag is true, return binary results.
|
|
* Set the cookiejar argument to a string (e.g. "/tmp/friendica-cookies.txt")
|
|
* to preserve cookies from one request to the next.
|
|
*
|
|
* @param string $url URL to fetch
|
|
* @param boolean $binary default false
|
|
* TRUE if asked to return binary results (file download)
|
|
* @param integer $redirects The recursion counter for internal use - default 0
|
|
* @param integer $timeout Timeout in seconds, default system config value or 60 seconds
|
|
* @param string $accept_content supply Accept: header with 'accept_content' as the value
|
|
* @param string $cookiejar Path to cookie jar file
|
|
*
|
|
* @return string The fetched content
|
|
*/
|
|
function fetch_url($url,$binary = false, &$redirects = 0, $timeout = 0, $accept_content=Null, $cookiejar = 0) {
|
|
|
|
$ret = z_fetch_url(
|
|
$url,
|
|
$binary,
|
|
$redirects,
|
|
array('timeout'=>$timeout,
|
|
'accept_content'=>$accept_content,
|
|
'cookiejar'=>$cookiejar
|
|
));
|
|
|
|
return($ret['body']);
|
|
}
|
|
|
|
/**
|
|
* @brief fetches an URL.
|
|
*
|
|
* @param string $url URL to fetch
|
|
* @param boolean $binary default false
|
|
* TRUE if asked to return binary results (file download)
|
|
* @param int $redirects The recursion counter for internal use - default 0
|
|
* @param array $opts (optional parameters) assoziative array with:
|
|
* 'accept_content' => supply Accept: header with 'accept_content' as the value
|
|
* 'timeout' => int Timeout in seconds, default system config value or 60 seconds
|
|
* 'http_auth' => username:password
|
|
* 'novalidate' => do not validate SSL certs, default is to validate using our CA list
|
|
* 'nobody' => only return the header
|
|
* 'cookiejar' => path to cookie jar file
|
|
*
|
|
* @return array an assoziative array with:
|
|
* int 'return_code' => HTTP return code or 0 if timeout or failure
|
|
* boolean 'success' => boolean true (if HTTP 2xx result) or false
|
|
* string 'redirect_url' => in case of redirect, content was finally retrieved from this URL
|
|
* string 'header' => HTTP headers
|
|
* string 'body' => fetched content
|
|
*/
|
|
function z_fetch_url($url, $binary = false, &$redirects = 0, $opts = array()) {
|
|
$ret = array('return_code' => 0, 'success' => false, 'header' => '', 'body' => '');
|
|
|
|
$stamp1 = microtime(true);
|
|
|
|
$a = get_app();
|
|
|
|
if (blocked_url($url)) {
|
|
logger('z_fetch_url: domain of ' . $url . ' is blocked', LOGGER_DATA);
|
|
return $ret;
|
|
}
|
|
|
|
$ch = @curl_init($url);
|
|
|
|
if (($redirects > 8) || (!$ch)) {
|
|
return $ret;
|
|
}
|
|
|
|
@curl_setopt($ch, CURLOPT_HEADER, true);
|
|
|
|
if (x($opts, "cookiejar")) {
|
|
curl_setopt($ch, CURLOPT_COOKIEJAR, $opts["cookiejar"]);
|
|
curl_setopt($ch, CURLOPT_COOKIEFILE, $opts["cookiejar"]);
|
|
}
|
|
|
|
// These settings aren't needed. We're following the location already.
|
|
// @curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
|
|
// @curl_setopt($ch, CURLOPT_MAXREDIRS, 5);
|
|
|
|
if (x($opts, 'accept_content')) {
|
|
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
|
|
'Accept: ' . $opts['accept_content']
|
|
));
|
|
}
|
|
|
|
@curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
@curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
|
|
|
|
$range = intval(Config::get('system', 'curl_range_bytes', 0));
|
|
|
|
if ($range > 0) {
|
|
@curl_setopt($ch, CURLOPT_RANGE, '0-' . $range);
|
|
}
|
|
|
|
// Without this setting it seems as if some webservers send compressed content
|
|
// This seems to confuse curl so that it shows this uncompressed.
|
|
/// @todo We could possibly set this value to "gzip" or something similar
|
|
curl_setopt($ch, CURLOPT_ENCODING, '');
|
|
|
|
if (x($opts, 'headers')) {
|
|
@curl_setopt($ch, CURLOPT_HTTPHEADER, $opts['headers']);
|
|
}
|
|
|
|
if (x($opts, 'nobody')) {
|
|
@curl_setopt($ch, CURLOPT_NOBODY, $opts['nobody']);
|
|
}
|
|
|
|
if (x($opts, 'timeout')) {
|
|
@curl_setopt($ch, CURLOPT_TIMEOUT, $opts['timeout']);
|
|
} else {
|
|
$curl_time = intval(get_config('system', 'curl_timeout'));
|
|
@curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
|
|
}
|
|
|
|
// by default we will allow self-signed certs
|
|
// but you can override this
|
|
|
|
$check_cert = get_config('system', 'verifyssl');
|
|
@curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
|
|
|
|
if ($check_cert) {
|
|
@curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
|
|
}
|
|
|
|
$proxy = get_config('system', 'proxy');
|
|
|
|
if (strlen($proxy)) {
|
|
@curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
|
|
@curl_setopt($ch, CURLOPT_PROXY, $proxy);
|
|
$proxyuser = @get_config('system', 'proxyuser');
|
|
|
|
if (strlen($proxyuser)) {
|
|
@curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyuser);
|
|
}
|
|
}
|
|
|
|
if (Config::get('system', 'ipv4_resolve', false)) {
|
|
curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
|
|
}
|
|
|
|
if ($binary) {
|
|
@curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
|
|
}
|
|
|
|
$a->set_curl_code(0);
|
|
|
|
// don't let curl abort the entire application
|
|
// if it throws any errors.
|
|
|
|
$s = @curl_exec($ch);
|
|
|
|
if (curl_errno($ch) !== CURLE_OK) {
|
|
logger('fetch_url error fetching ' . $url . ': ' . curl_error($ch), LOGGER_NORMAL);
|
|
}
|
|
|
|
$ret['errno'] = curl_errno($ch);
|
|
|
|
$base = $s;
|
|
$curl_info = @curl_getinfo($ch);
|
|
|
|
$http_code = $curl_info['http_code'];
|
|
logger('fetch_url ' . $url . ': ' . $http_code . " " . $s, LOGGER_DATA);
|
|
$header = '';
|
|
|
|
// Pull out multiple headers, e.g. proxy and continuation headers
|
|
// allow for HTTP/2.x without fixing code
|
|
|
|
while (preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/', $base)) {
|
|
$chunk = substr($base, 0, strpos($base,"\r\n\r\n") + 4);
|
|
$header .= $chunk;
|
|
$base = substr($base, strlen($chunk));
|
|
}
|
|
|
|
$a->set_curl_code($http_code);
|
|
$a->set_curl_content_type($curl_info['content_type']);
|
|
$a->set_curl_headers($header);
|
|
|
|
if ($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
|
|
$new_location_info = @parse_url($curl_info['redirect_url']);
|
|
$old_location_info = @parse_url($curl_info['url']);
|
|
|
|
$newurl = $curl_info['redirect_url'];
|
|
|
|
if (($new_location_info['path'] == '') && ( $new_location_info['host'] != '')) {
|
|
$newurl = $new_location_info['scheme'] . '://' . $new_location_info['host'] . $old_location_info['path'];
|
|
}
|
|
|
|
$matches = array();
|
|
|
|
if (preg_match('/(Location:|URI:)(.*?)\n/i', $header, $matches)) {
|
|
$newurl = trim(array_pop($matches));
|
|
}
|
|
if (strpos($newurl,'/') === 0) {
|
|
$newurl = $old_location_info["scheme"]."://".$old_location_info["host"].$newurl;
|
|
}
|
|
|
|
if (filter_var($newurl, FILTER_VALIDATE_URL)) {
|
|
$redirects++;
|
|
@curl_close($ch);
|
|
return z_fetch_url($newurl, $binary, $redirects, $opts);
|
|
}
|
|
}
|
|
|
|
$a->set_curl_code($http_code);
|
|
$a->set_curl_content_type($curl_info['content_type']);
|
|
|
|
$body = substr($s, strlen($header));
|
|
|
|
$rc = intval($http_code);
|
|
$ret['return_code'] = $rc;
|
|
$ret['success'] = (($rc >= 200 && $rc <= 299) ? true : false);
|
|
$ret['redirect_url'] = $url;
|
|
|
|
if (!$ret['success']) {
|
|
$ret['error'] = curl_error($ch);
|
|
$ret['debug'] = $curl_info;
|
|
logger('z_fetch_url: error: '.$url.': '.$ret['return_code'].' - '.$ret['error'], LOGGER_DEBUG);
|
|
logger('z_fetch_url: debug: '.print_r($curl_info, true), LOGGER_DATA);
|
|
}
|
|
|
|
$ret['body'] = substr($s, strlen($header));
|
|
$ret['header'] = $header;
|
|
|
|
if (x($opts, 'debug')) {
|
|
$ret['debug'] = $curl_info;
|
|
}
|
|
|
|
@curl_close($ch);
|
|
|
|
$a->save_timestamp($stamp1, 'network');
|
|
|
|
return($ret);
|
|
}
|
|
|
|
/**
|
|
* @brief Send POST request to $url
|
|
*
|
|
* @param string $url URL to post
|
|
* @param mixed $params array of POST variables
|
|
* @param string $headers HTTP headers
|
|
* @param integer $redirects Recursion counter for internal use - default = 0
|
|
* @param integer $timeout The timeout in seconds, default system config value or 60 seconds
|
|
*
|
|
* @return string The content
|
|
*/
|
|
function post_url($url, $params, $headers = null, &$redirects = 0, $timeout = 0) {
|
|
$stamp1 = microtime(true);
|
|
|
|
if (blocked_url($url)) {
|
|
logger('post_url: domain of ' . $url . ' is blocked', LOGGER_DATA);
|
|
return false;
|
|
}
|
|
|
|
$a = get_app();
|
|
$ch = curl_init($url);
|
|
|
|
if (($redirects > 8) || (!$ch)) {
|
|
return false;
|
|
}
|
|
|
|
logger('post_url: start ' . $url, LOGGER_DATA);
|
|
|
|
curl_setopt($ch, CURLOPT_HEADER, true);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($ch, CURLOPT_POST, 1);
|
|
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
|
|
curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
|
|
|
|
if (Config::get('system', 'ipv4_resolve', false)) {
|
|
curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
|
|
}
|
|
|
|
if (intval($timeout)) {
|
|
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
|
|
} else {
|
|
$curl_time = intval(get_config('system', 'curl_timeout'));
|
|
curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
|
|
}
|
|
|
|
if (defined('LIGHTTPD')) {
|
|
if (!is_array($headers)) {
|
|
$headers = array('Expect:');
|
|
} else {
|
|
if (!in_array('Expect:', $headers)) {
|
|
array_push($headers, 'Expect:');
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($headers) {
|
|
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
|
|
}
|
|
|
|
$check_cert = get_config('system', 'verifyssl');
|
|
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
|
|
|
|
if ($check_cert) {
|
|
@curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
|
|
}
|
|
|
|
$proxy = get_config('system', 'proxy');
|
|
|
|
if (strlen($proxy)) {
|
|
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
|
|
curl_setopt($ch, CURLOPT_PROXY, $proxy);
|
|
$proxyuser = get_config('system', 'proxyuser');
|
|
if (strlen($proxyuser)) {
|
|
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyuser);
|
|
}
|
|
}
|
|
|
|
$a->set_curl_code(0);
|
|
|
|
// don't let curl abort the entire application
|
|
// if it throws any errors.
|
|
|
|
$s = @curl_exec($ch);
|
|
|
|
$base = $s;
|
|
$curl_info = curl_getinfo($ch);
|
|
$http_code = $curl_info['http_code'];
|
|
|
|
logger('post_url: result ' . $http_code . ' - ' . $url, LOGGER_DATA);
|
|
|
|
$header = '';
|
|
|
|
// Pull out multiple headers, e.g. proxy and continuation headers
|
|
// allow for HTTP/2.x without fixing code
|
|
|
|
while (preg_match('/^HTTP\/[1-2].+? [1-5][0-9][0-9]/', $base)) {
|
|
$chunk = substr($base, 0, strpos($base, "\r\n\r\n") + 4);
|
|
$header .= $chunk;
|
|
$base = substr($base, strlen($chunk));
|
|
}
|
|
|
|
if ($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
|
|
$matches = array();
|
|
preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
|
|
$newurl = trim(array_pop($matches));
|
|
|
|
if (strpos($newurl, '/') === 0) {
|
|
$newurl = $old_location_info["scheme"] . "://" . $old_location_info["host"] . $newurl;
|
|
}
|
|
|
|
if (filter_var($newurl, FILTER_VALIDATE_URL)) {
|
|
$redirects++;
|
|
logger('post_url: redirect ' . $url . ' to ' . $newurl);
|
|
return post_url($newurl, $params, $headers, $redirects, $timeout);
|
|
}
|
|
}
|
|
|
|
$a->set_curl_code($http_code);
|
|
|
|
$body = substr($s, strlen($header));
|
|
|
|
$a->set_curl_headers($header);
|
|
|
|
curl_close($ch);
|
|
|
|
$a->save_timestamp($stamp1, 'network');
|
|
|
|
logger('post_url: end ' . $url, LOGGER_DATA);
|
|
|
|
return $body;
|
|
}
|
|
|
|
// Generic XML return
|
|
// Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
|
|
// of $st and an optional text <message> of $message and terminates the current process.
|
|
|
|
function xml_status($st, $message = '') {
|
|
|
|
$result = array('status' => $st);
|
|
|
|
if ($message != '') {
|
|
$result['message'] = $message;
|
|
}
|
|
|
|
if ($st) {
|
|
logger('xml_status returning non_zero: ' . $st . " message=" . $message);
|
|
}
|
|
|
|
header("Content-type: text/xml");
|
|
|
|
$xmldata = array("result" => $result);
|
|
|
|
echo xml::from_array($xmldata, $xml);
|
|
|
|
killme();
|
|
}
|
|
|
|
/**
|
|
* @brief Send HTTP status header and exit.
|
|
*
|
|
* @param integer $val HTTP status result value
|
|
* @param array $description optional message
|
|
* 'title' => header title
|
|
* 'description' => optional message
|
|
*/
|
|
|
|
/**
|
|
* @brief Send HTTP status header and exit.
|
|
*
|
|
* @param integer $val HTTP status result value
|
|
* @param array $description optional message
|
|
* 'title' => header title
|
|
* 'description' => optional message
|
|
*/
|
|
function http_status_exit($val, $description = array()) {
|
|
$err = '';
|
|
if ($val >= 400) {
|
|
$err = 'Error';
|
|
if (!isset($description["title"]))
|
|
$description["title"] = $err." ".$val;
|
|
}
|
|
if ($val >= 200 && $val < 300)
|
|
$err = 'OK';
|
|
|
|
logger('http_status_exit ' . $val);
|
|
header($_SERVER["SERVER_PROTOCOL"] . ' ' . $val . ' ' . $err);
|
|
|
|
if (isset($description["title"])) {
|
|
$tpl = get_markup_template('http_status.tpl');
|
|
echo replace_macros($tpl, array('$title' => $description["title"],
|
|
'$description' => $description["description"]));
|
|
}
|
|
|
|
killme();
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief Check URL to se if ts's real
|
|
*
|
|
* Take a URL from the wild, prepend http:// if necessary
|
|
* and check DNS to see if it's real (or check if is a valid IP address)
|
|
*
|
|
* @param string $url The URL to be validated
|
|
* @return boolean True if it's a valid URL, fals if something wrong with it
|
|
*/
|
|
function validate_url(&$url) {
|
|
if (get_config('system','disable_url_validation'))
|
|
return true;
|
|
|
|
// no naked subdomains (allow localhost for tests)
|
|
if (strpos($url,'.') === false && strpos($url,'/localhost/') === false)
|
|
return false;
|
|
|
|
if (substr($url,0,4) != 'http')
|
|
$url = 'http://' . $url;
|
|
|
|
/// @TODO Really supress function outcomes? Why not find them + debug them?
|
|
$h = @parse_url($url);
|
|
|
|
if ((is_array($h)) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR) || filter_var($h['host'], FILTER_VALIDATE_IP) )) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Checks that email is an actual resolvable internet address
|
|
*
|
|
* @param string $addr The email address
|
|
* @return boolean True if it's a valid email address, false if it's not
|
|
*/
|
|
function validate_email($addr) {
|
|
|
|
if (get_config('system','disable_email_validation'))
|
|
return true;
|
|
|
|
if (! strpos($addr,'@'))
|
|
return false;
|
|
$h = substr($addr,strpos($addr,'@') + 1);
|
|
|
|
if (($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX) || filter_var($h, FILTER_VALIDATE_IP) )) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Check if URL is allowed
|
|
*
|
|
* Check $url against our list of allowed sites,
|
|
* wildcards allowed. If allowed_sites is unset return true;
|
|
*
|
|
* @param string $url URL which get tested
|
|
* @return boolean True if url is allowed otherwise return false
|
|
*/
|
|
function allowed_url($url) {
|
|
|
|
$h = @parse_url($url);
|
|
|
|
if (! $h) {
|
|
return false;
|
|
}
|
|
|
|
$str_allowed = Config::get('system', 'allowed_sites');
|
|
if (! $str_allowed) {
|
|
return true;
|
|
}
|
|
|
|
$found = false;
|
|
|
|
$host = strtolower($h['host']);
|
|
|
|
// always allow our own site
|
|
if ($host == strtolower($_SERVER['SERVER_NAME'])) {
|
|
return true;
|
|
}
|
|
|
|
$fnmatch = function_exists('fnmatch');
|
|
$allowed = explode(',', $str_allowed);
|
|
|
|
if (count($allowed)) {
|
|
foreach ($allowed as $a) {
|
|
$pat = strtolower(trim($a));
|
|
if (($fnmatch && fnmatch($pat, $host)) || ($pat == $host)) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $found;
|
|
}
|
|
|
|
/**
|
|
* Checks if the provided url domain is on the domain blocklist.
|
|
* Returns true if it is or malformed URL, false if not.
|
|
*
|
|
* @param string $url The url to check the domain from
|
|
* @return boolean
|
|
*/
|
|
function blocked_url($url) {
|
|
$h = @parse_url($url);
|
|
|
|
if (! $h) {
|
|
return true;
|
|
}
|
|
|
|
$domain_blocklist = Config::get('system', 'blocklist', array());
|
|
if (! $domain_blocklist) {
|
|
return false;
|
|
}
|
|
|
|
$host = strtolower($h['host']);
|
|
|
|
foreach ($domain_blocklist as $domain_block) {
|
|
if (strtolower($domain_block['domain']) == $host) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Check if email address is allowed to register here.
|
|
*
|
|
* Compare against our list (wildcards allowed).
|
|
*
|
|
* @param type $email
|
|
* @return boolean False if not allowed, true if allowed
|
|
* or if allowed list is not configured
|
|
*/
|
|
function allowed_email($email) {
|
|
|
|
$domain = strtolower(substr($email,strpos($email,'@') + 1));
|
|
if (! $domain) {
|
|
return false;
|
|
}
|
|
|
|
$str_allowed = get_config('system','allowed_email');
|
|
if (! $str_allowed) {
|
|
return true;
|
|
}
|
|
|
|
$found = false;
|
|
|
|
$fnmatch = function_exists('fnmatch');
|
|
$allowed = explode(',',$str_allowed);
|
|
|
|
if (count($allowed)) {
|
|
foreach ($allowed as $a) {
|
|
$pat = strtolower(trim($a));
|
|
if (($fnmatch && fnmatch($pat,$domain)) || ($pat == $domain)) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $found;
|
|
}
|
|
|
|
function avatar_img($email) {
|
|
|
|
$avatar['size'] = 175;
|
|
$avatar['email'] = $email;
|
|
$avatar['url'] = '';
|
|
$avatar['success'] = false;
|
|
|
|
call_hooks('avatar_lookup', $avatar);
|
|
|
|
if (! $avatar['success']) {
|
|
$avatar['url'] = System::baseUrl() . '/images/person-175.jpg';
|
|
}
|
|
|
|
logger('Avatar: ' . $avatar['email'] . ' ' . $avatar['url'], LOGGER_DEBUG);
|
|
return $avatar['url'];
|
|
}
|
|
|
|
|
|
function parse_xml_string($s, $strict = true) {
|
|
// the "strict" parameter is deactivated
|
|
|
|
/// @todo Move this function to the xml class
|
|
libxml_use_internal_errors(true);
|
|
|
|
$x = @simplexml_load_string($s);
|
|
if (!$x) {
|
|
logger('libxml: parse: error: ' . $s, LOGGER_DATA);
|
|
foreach (libxml_get_errors() as $err) {
|
|
logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA);
|
|
}
|
|
libxml_clear_errors();
|
|
}
|
|
return $x;
|
|
}
|
|
|
|
function scale_external_images($srctext, $include_link = true, $scale_replace = false) {
|
|
|
|
// Suppress "view full size"
|
|
if (intval(get_config('system','no_view_full_size'))) {
|
|
$include_link = false;
|
|
}
|
|
|
|
$a = get_app();
|
|
|
|
// Picture addresses can contain special characters
|
|
$s = htmlspecialchars_decode($srctext);
|
|
|
|
$matches = null;
|
|
$c = preg_match_all('/\[img.*?\](.*?)\[\/img\]/ism',$s,$matches,PREG_SET_ORDER);
|
|
if ($c) {
|
|
require_once('include/Photo.php');
|
|
foreach ($matches as $mtch) {
|
|
logger('scale_external_image: ' . $mtch[1]);
|
|
|
|
$hostname = str_replace('www.','',substr(System::baseUrl(),strpos(System::baseUrl(),'://')+3));
|
|
if (stristr($mtch[1],$hostname)) {
|
|
continue;
|
|
}
|
|
|
|
// $scale_replace, if passed, is an array of two elements. The
|
|
// first is the name of the full-size image. The second is the
|
|
// name of a remote, scaled-down version of the full size image.
|
|
// This allows Friendica to display the smaller remote image if
|
|
// one exists, while still linking to the full-size image
|
|
if ($scale_replace) {
|
|
$scaled = str_replace($scale_replace[0], $scale_replace[1], $mtch[1]);
|
|
} else {
|
|
$scaled = $mtch[1];
|
|
}
|
|
$i = fetch_url($scaled);
|
|
if (! $i) {
|
|
return $srctext;
|
|
}
|
|
|
|
// guess mimetype from headers or filename
|
|
$type = guess_image_type($mtch[1],true);
|
|
|
|
if ($i) {
|
|
$ph = new Photo($i, $type);
|
|
if ($ph->is_valid()) {
|
|
$orig_width = $ph->getWidth();
|
|
$orig_height = $ph->getHeight();
|
|
|
|
if ($orig_width > 640 || $orig_height > 640) {
|
|
|
|
$ph->scaleImage(640);
|
|
$new_width = $ph->getWidth();
|
|
$new_height = $ph->getHeight();
|
|
logger('scale_external_images: ' . $orig_width . '->' . $new_width . 'w ' . $orig_height . '->' . $new_height . 'h' . ' match: ' . $mtch[0], LOGGER_DEBUG);
|
|
$s = str_replace($mtch[0],'[img=' . $new_width . 'x' . $new_height. ']' . $scaled . '[/img]'
|
|
. "\n" . (($include_link)
|
|
? '[url=' . $mtch[1] . ']' . t('view full size') . '[/url]' . "\n"
|
|
: ''),$s);
|
|
logger('scale_external_images: new string: ' . $s, LOGGER_DEBUG);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// replace the special char encoding
|
|
$s = htmlspecialchars($s,ENT_NOQUOTES,'UTF-8');
|
|
return $s;
|
|
}
|
|
|
|
|
|
function fix_contact_ssl_policy(&$contact,$new_policy) {
|
|
|
|
$ssl_changed = false;
|
|
if ((intval($new_policy) == SSL_POLICY_SELFSIGN || $new_policy === 'self') && strstr($contact['url'],'https:')) {
|
|
$ssl_changed = true;
|
|
$contact['url'] = str_replace('https:','http:',$contact['url']);
|
|
$contact['request'] = str_replace('https:','http:',$contact['request']);
|
|
$contact['notify'] = str_replace('https:','http:',$contact['notify']);
|
|
$contact['poll'] = str_replace('https:','http:',$contact['poll']);
|
|
$contact['confirm'] = str_replace('https:','http:',$contact['confirm']);
|
|
$contact['poco'] = str_replace('https:','http:',$contact['poco']);
|
|
}
|
|
|
|
if ((intval($new_policy) == SSL_POLICY_FULL || $new_policy === 'full') && strstr($contact['url'],'http:')) {
|
|
$ssl_changed = true;
|
|
$contact['url'] = str_replace('http:','https:',$contact['url']);
|
|
$contact['request'] = str_replace('http:','https:',$contact['request']);
|
|
$contact['notify'] = str_replace('http:','https:',$contact['notify']);
|
|
$contact['poll'] = str_replace('http:','https:',$contact['poll']);
|
|
$contact['confirm'] = str_replace('http:','https:',$contact['confirm']);
|
|
$contact['poco'] = str_replace('http:','https:',$contact['poco']);
|
|
}
|
|
|
|
if ($ssl_changed) {
|
|
$fields = array('url' => $contact['url'], 'request' => $contact['request'],
|
|
'notify' => $contact['notify'], 'poll' => $contact['poll'],
|
|
'confirm' => $contact['confirm'], 'poco' => $contact['poco']);
|
|
dba::update('contact', $fields, array('id' => $contact['id']));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Remove Google Analytics and other tracking platforms params from URL
|
|
*
|
|
* @param string $url Any user-submitted URL that may contain tracking params
|
|
* @return string The same URL stripped of tracking parameters
|
|
*/
|
|
function strip_tracking_query_params($url)
|
|
{
|
|
$urldata = parse_url($url);
|
|
if (is_string($urldata["query"])) {
|
|
$query = $urldata["query"];
|
|
parse_str($query, $querydata);
|
|
|
|
if (is_array($querydata)) {
|
|
foreach ($querydata AS $param => $value) {
|
|
if (in_array($param, array("utm_source", "utm_medium", "utm_term", "utm_content", "utm_campaign",
|
|
"wt_mc", "pk_campaign", "pk_kwd", "mc_cid", "mc_eid",
|
|
"fb_action_ids", "fb_action_types", "fb_ref",
|
|
"awesm", "wtrid",
|
|
"woo_campaign", "woo_source", "woo_medium", "woo_content", "woo_term"))) {
|
|
|
|
$pair = $param . "=" . urlencode($value);
|
|
$url = str_replace($pair, "", $url);
|
|
|
|
// Second try: if the url isn't encoded completely
|
|
$pair = $param . "=" . str_replace(" ", "+", $value);
|
|
$url = str_replace($pair, "", $url);
|
|
|
|
// Third try: Maybey the url isn't encoded at all
|
|
$pair = $param . "=" . $value;
|
|
$url = str_replace($pair, "", $url);
|
|
|
|
$url = str_replace(array("?&", "&&"), array("?", ""), $url);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (substr($url, -1, 1) == "?") {
|
|
$url = substr($url, 0, -1);
|
|
}
|
|
}
|
|
|
|
return $url;
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the original URL of the provided URL
|
|
*
|
|
* This function strips tracking query params and follows redirections, either
|
|
* through HTTP code or meta refresh tags. Stops after 10 redirections.
|
|
*
|
|
* @todo Remove the $fetchbody parameter that generates an extraneous HEAD request
|
|
*
|
|
* @see ParseUrl::getSiteinfo
|
|
*
|
|
* @param string $url A user-submitted URL
|
|
* @param int $depth The current redirection recursion level (internal)
|
|
* @param bool $fetchbody Wether to fetch the body or not after the HEAD requests
|
|
* @return string A canonical URL
|
|
*/
|
|
function original_url($url, $depth = 1, $fetchbody = false) {
|
|
$a = get_app();
|
|
|
|
$url = strip_tracking_query_params($url);
|
|
|
|
if ($depth > 10)
|
|
return($url);
|
|
|
|
$url = trim($url, "'");
|
|
|
|
$stamp1 = microtime(true);
|
|
|
|
$siteinfo = array();
|
|
$ch = curl_init();
|
|
curl_setopt($ch, CURLOPT_URL, $url);
|
|
curl_setopt($ch, CURLOPT_HEADER, 1);
|
|
curl_setopt($ch, CURLOPT_NOBODY, 1);
|
|
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
|
|
|
|
$header = curl_exec($ch);
|
|
$curl_info = @curl_getinfo($ch);
|
|
$http_code = $curl_info['http_code'];
|
|
curl_close($ch);
|
|
|
|
$a->save_timestamp($stamp1, "network");
|
|
|
|
if ($http_code == 0)
|
|
return($url);
|
|
|
|
if ((($curl_info['http_code'] == "301") || ($curl_info['http_code'] == "302"))
|
|
&& (($curl_info['redirect_url'] != "") || ($curl_info['location'] != ""))) {
|
|
if ($curl_info['redirect_url'] != "")
|
|
return(original_url($curl_info['redirect_url'], ++$depth, $fetchbody));
|
|
else
|
|
return(original_url($curl_info['location'], ++$depth, $fetchbody));
|
|
}
|
|
|
|
// Check for redirects in the meta elements of the body if there are no redirects in the header.
|
|
if (!$fetchbody)
|
|
return(original_url($url, ++$depth, true));
|
|
|
|
// if the file is too large then exit
|
|
if ($curl_info["download_content_length"] > 1000000)
|
|
return($url);
|
|
|
|
// if it isn't a HTML file then exit
|
|
if (($curl_info["content_type"] != "") && !strstr(strtolower($curl_info["content_type"]),"html"))
|
|
return($url);
|
|
|
|
$stamp1 = microtime(true);
|
|
|
|
$ch = curl_init();
|
|
curl_setopt($ch, CURLOPT_URL, $url);
|
|
curl_setopt($ch, CURLOPT_HEADER, 0);
|
|
curl_setopt($ch, CURLOPT_NOBODY, 0);
|
|
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
|
|
|
|
$body = curl_exec($ch);
|
|
curl_close($ch);
|
|
|
|
$a->save_timestamp($stamp1, "network");
|
|
|
|
if (trim($body) == "")
|
|
return($url);
|
|
|
|
// Check for redirect in meta elements
|
|
$doc = new DOMDocument();
|
|
@$doc->loadHTML($body);
|
|
|
|
$xpath = new DomXPath($doc);
|
|
|
|
$list = $xpath->query("//meta[@content]");
|
|
foreach ($list as $node) {
|
|
$attr = array();
|
|
if ($node->attributes->length)
|
|
foreach ($node->attributes as $attribute)
|
|
$attr[$attribute->name] = $attribute->value;
|
|
|
|
if (@$attr["http-equiv"] == 'refresh') {
|
|
$path = $attr["content"];
|
|
$pathinfo = explode(";", $path);
|
|
$content = "";
|
|
foreach ($pathinfo AS $value)
|
|
if (substr(strtolower($value), 0, 4) == "url=")
|
|
return(original_url(substr($value, 4), ++$depth));
|
|
}
|
|
}
|
|
|
|
return($url);
|
|
}
|
|
|
|
function short_link($url) {
|
|
require_once('library/slinky.php');
|
|
$slinky = new Slinky($url);
|
|
$yourls_url = get_config('yourls','url1');
|
|
if ($yourls_url) {
|
|
$yourls_username = get_config('yourls','username1');
|
|
$yourls_password = get_config('yourls', 'password1');
|
|
$yourls_ssl = get_config('yourls', 'ssl1');
|
|
$yourls = new Slinky_YourLS();
|
|
$yourls->set('username', $yourls_username);
|
|
$yourls->set('password', $yourls_password);
|
|
$yourls->set('ssl', $yourls_ssl);
|
|
$yourls->set('yourls-url', $yourls_url);
|
|
$slinky->set_cascade(array($yourls, new Slinky_Ur1ca(), new Slinky_TinyURL()));
|
|
} else {
|
|
// setup a cascade of shortening services
|
|
// try to get a short link from these services
|
|
// in the order ur1.ca, tinyurl
|
|
$slinky->set_cascade(array(new Slinky_Ur1ca(), new Slinky_TinyURL()));
|
|
}
|
|
return $slinky->short();
|
|
}
|
|
|
|
/**
|
|
* @brief Encodes content to json
|
|
*
|
|
* This function encodes an array to json format
|
|
* and adds an application/json HTTP header to the output.
|
|
* After finishing the process is getting killed.
|
|
*
|
|
* @param array $x The input content
|
|
*/
|
|
function json_return_and_die($x) {
|
|
header("content-type: application/json");
|
|
echo json_encode($x);
|
|
killme();
|
|
}
|
|
|
|
/**
|
|
* @brief Find the matching part between two url
|
|
*
|
|
* @param string $url1
|
|
* @param string $url2
|
|
* @return string The matching part
|
|
*/
|
|
function matching_url($url1, $url2) {
|
|
|
|
if (($url1 == "") || ($url2 == ""))
|
|
return "";
|
|
|
|
$url1 = normalise_link($url1);
|
|
$url2 = normalise_link($url2);
|
|
|
|
$parts1 = parse_url($url1);
|
|
$parts2 = parse_url($url2);
|
|
|
|
if (!isset($parts1["host"]) || !isset($parts2["host"]))
|
|
return "";
|
|
|
|
if ($parts1["scheme"] != $parts2["scheme"])
|
|
return "";
|
|
|
|
if ($parts1["host"] != $parts2["host"])
|
|
return "";
|
|
|
|
if ($parts1["port"] != $parts2["port"])
|
|
return "";
|
|
|
|
$match = $parts1["scheme"]."://".$parts1["host"];
|
|
|
|
if ($parts1["port"])
|
|
$match .= ":".$parts1["port"];
|
|
|
|
$pathparts1 = explode("/", $parts1["path"]);
|
|
$pathparts2 = explode("/", $parts2["path"]);
|
|
|
|
$i = 0;
|
|
$path = "";
|
|
do {
|
|
$path1 = $pathparts1[$i];
|
|
$path2 = $pathparts2[$i];
|
|
|
|
if ($path1 == $path2)
|
|
$path .= $path1."/";
|
|
|
|
} while (($path1 == $path2) && ($i++ <= count($pathparts1)));
|
|
|
|
$match .= $path;
|
|
|
|
return normalise_link($match);
|
|
}
|