<?php
-// Based upon "Privacy Image Cache" by Tobias Hößl <https://github.com/CatoTH/>
+/**
+ * @file mod/proxy.php
+ * @brief Based upon "Privacy Image Cache" by Tobias Hößl <https://github.com/CatoTH/>
+ */
-define("PROXY_DEFAULT_TIME", 86400); // 1 Day
+use Friendica\App;
+use Friendica\Core\Config;
+use Friendica\Core\System;
+use Friendica\Database\dba;
+use Friendica\Database\DBM;
+use Friendica\Model\Photo;
+use Friendica\Object\Image;
+use Friendica\Util\DateTimeFormat;
+use Friendica\Util\Network;
-define("PROXY_SIZE_MICRO", "micro");
-define("PROXY_SIZE_THUMB", "thumb");
-define("PROXY_SIZE_SMALL", "small");
-define("PROXY_SIZE_MEDIUM", "medium");
-define("PROXY_SIZE_LARGE", "large");
+define('PROXY_DEFAULT_TIME', 86400); // 1 Day
-require_once('include/security.php');
-require_once("include/Photo.php");
+define('PROXY_SIZE_MICRO', 'micro');
+define('PROXY_SIZE_THUMB', 'thumb');
+define('PROXY_SIZE_SMALL', 'small');
+define('PROXY_SIZE_MEDIUM', 'medium');
+define('PROXY_SIZE_LARGE', 'large');
-function proxy_init() {
- global $a, $_SERVER;
+require_once 'include/security.php';
+function proxy_init(App $a) {
// Pictures are stored in one of the following ways:
// 1. If a folder "proxy" exists and is writeable, then use this for caching
// 2. If a cache path is defined, use this
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
header('HTTP/1.1 304 Not Modified');
- header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
- header('Etag: '.$_SERVER['HTTP_IF_NONE_MATCH']);
- header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
- header("Cache-Control: max-age=31536000");
- if(function_exists('header_remove')) {
+ header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
+ header('Etag: ' . $_SERVER['HTTP_IF_NONE_MATCH']);
+ header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
+ header('Cache-Control: max-age=31536000');
+
+ if (function_exists('header_remove')) {
header_remove('Last-Modified');
header_remove('Expires');
header_remove('Cache-Control');
exit;
}
- if(function_exists('header_remove')) {
+ if (function_exists('header_remove')) {
header_remove('Pragma');
header_remove('pragma');
}
$thumb = false;
$size = 1024;
- $sizetype = "";
+ $sizetype = '';
$basepath = $a->get_basepath();
// If the cache path isn't there, try to create it
- if (!is_dir($basepath."/proxy"))
- if (is_writable($basepath))
- mkdir($basepath."/proxy");
+ if (!is_dir($basepath . '/proxy') && is_writable($basepath)) {
+ mkdir($basepath . '/proxy');
+ }
// Checking if caching into a folder in the webroot is activated and working
- $direct_cache = (is_dir($basepath."/proxy") AND is_writable($basepath."/proxy"));
+ $direct_cache = (is_dir($basepath . '/proxy') && is_writable($basepath . '/proxy'));
// Look for filename in the arguments
- if ((isset($a->argv[1]) OR isset($a->argv[2]) OR isset($a->argv[3])) AND !isset($_REQUEST["url"])) {
- if (isset($a->argv[3]))
+ if ((isset($a->argv[1]) || isset($a->argv[2]) || isset($a->argv[3])) && !isset($_REQUEST['url'])) {
+ if (isset($a->argv[3])) {
$url = $a->argv[3];
- elseif (isset($a->argv[2]))
+ } elseif (isset($a->argv[2])) {
$url = $a->argv[2];
- else
+ } else {
$url = $a->argv[1];
+ }
- if (isset($a->argv[3]) and ($a->argv[3] == "thumb"))
+ if (isset($a->argv[3]) && ($a->argv[3] == 'thumb')) {
$size = 200;
+ }
// thumb, small, medium and large.
- if (substr($url, -6) == ":micro") {
+ if (substr($url, -6) == ':micro') {
$size = 48;
- $sizetype = ":micro";
+ $sizetype = ':micro';
$url = substr($url, 0, -6);
- } elseif (substr($url, -6) == ":thumb") {
+ } elseif (substr($url, -6) == ':thumb') {
$size = 80;
- $sizetype = ":thumb";
+ $sizetype = ':thumb';
$url = substr($url, 0, -6);
- } elseif (substr($url, -6) == ":small") {
+ } elseif (substr($url, -6) == ':small') {
$size = 175;
$url = substr($url, 0, -6);
- $sizetype = ":small";
- } elseif (substr($url, -7) == ":medium") {
+ $sizetype = ':small';
+ } elseif (substr($url, -7) == ':medium') {
$size = 600;
$url = substr($url, 0, -7);
- $sizetype = ":medium";
- } elseif (substr($url, -6) == ":large") {
+ $sizetype = ':medium';
+ } elseif (substr($url, -6) == ':large') {
$size = 1024;
$url = substr($url, 0, -6);
- $sizetype = ":large";
+ $sizetype = ':large';
}
- $pos = strrpos($url, "=.");
- if ($pos)
- $url = substr($url, 0, $pos+1);
+ $pos = strrpos($url, '=.');
+ if ($pos) {
+ $url = substr($url, 0, $pos + 1);
+ }
- $url = str_replace(array(".jpg", ".jpeg", ".gif", ".png"), array("","","",""), $url);
+ $url = str_replace(['.jpg', '.jpeg', '.gif', '.png'], ['','','',''], $url);
$url = base64_decode(strtr($url, '-_', '+/'), true);
- if ($url)
+ if ($url) {
$_REQUEST['url'] = $url;
- } else
+ }
+ } else {
$direct_cache = false;
+ }
if (!$direct_cache) {
$urlhash = 'pic:' . sha1($_REQUEST['url']);
- $cachefile = get_cachefile(hash("md5", $_REQUEST['url']));
- if ($cachefile != '') {
- if (file_exists($cachefile)) {
- $img_str = file_get_contents($cachefile);
- $mime = image_type_to_mime_type(exif_imagetype($cachefile));
-
- header("Content-type: $mime");
- header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
- header('Etag: "'.md5($img_str).'"');
- header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
- header("Cache-Control: max-age=31536000");
-
- // reduce quality - if it isn't a GIF
- if ($mime != "image/gif") {
- $img = new Photo($img_str, $mime);
- if($img->is_valid()) {
- $img_str = $img->imageString();
- }
+ $cachefile = get_cachefile(hash('md5', $_REQUEST['url']));
+ if ($cachefile != '' && file_exists($cachefile)) {
+ $img_str = file_get_contents($cachefile);
+ $mime = image_type_to_mime_type(exif_imagetype($cachefile));
+
+ header('Content-type: ' . $mime);
+ header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
+ header('Etag: "' . md5($img_str) . '"');
+ header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
+ header('Cache-Control: max-age=31536000');
+
+ // reduce quality - if it isn't a GIF
+ if ($mime != 'image/gif') {
+ $Image = new Image($img_str, $mime);
+ if ($Image->isValid()) {
+ $img_str = $Image->asString();
}
-
- echo $img_str;
- killme();
}
+
+ echo $img_str;
+ killme();
}
- } else
- $cachefile = "";
+ } else {
+ $cachefile = '';
+ }
$valid = true;
-
- if (!$direct_cache AND ($cachefile == "")) {
- $r = qu("SELECT * FROM `photo` WHERE `resource-id` = '%s' LIMIT 1", $urlhash);
- if (dbm::is_result($r)) {
- $img_str = $r[0]['data'];
- $mime = $r[0]["desc"];
- if ($mime == "") $mime = "image/jpeg";
+ $photo = null;
+ if (!$direct_cache && ($cachefile == '')) {
+ $photo = dba::selectFirst('photo', ['data', 'desc'], ['resource-id' => $urlhash]);
+ if (DBM::is_result($photo)) {
+ $img_str = $photo['data'];
+ $mime = $photo['desc'];
+ if ($mime == '') {
+ $mime = 'image/jpeg';
+ }
}
- } else
- $r = array();
+ }
- if (!dbm::is_result($r)) {
+ if (!DBM::is_result($photo)) {
// It shouldn't happen but it does - spaces in URL
- $_REQUEST['url'] = str_replace(" ", "+", $_REQUEST['url']);
+ $_REQUEST['url'] = str_replace(' ', '+', $_REQUEST['url']);
$redirects = 0;
- $img_str = fetch_url($_REQUEST['url'],true, $redirects, 10);
+ $img_str = Network::fetchUrl($_REQUEST['url'], true, $redirects, 10);
- $tempfile = tempnam(get_temppath(), "cache");
+ $tempfile = tempnam(get_temppath(), 'cache');
file_put_contents($tempfile, $img_str);
$mime = image_type_to_mime_type(exif_imagetype($tempfile));
unlink($tempfile);
// If there is an error then return a blank image
- if ((substr($a->get_curl_code(), 0, 1) == "4") or (!$img_str)) {
- $img_str = file_get_contents("images/blank.png");
- $mime = "image/png";
- $cachefile = ""; // Clear the cachefile so that the dummy isn't stored
+ if ((substr($a->get_curl_code(), 0, 1) == '4') || (!$img_str)) {
+ $img_str = file_get_contents('images/blank.png');
+ $mime = 'image/png';
+ $cachefile = ''; // Clear the cachefile so that the dummy isn't stored
$valid = false;
- $img = new Photo($img_str, "image/png");
- if($img->is_valid()) {
- $img->scaleImage(10);
- $img_str = $img->imageString();
+ $Image = new Image($img_str, 'image/png');
+ if ($Image->isValid()) {
+ $Image->scaleDown(10);
+ $img_str = $Image->asString();
}
- } else if (($mime != "image/jpeg") AND !$direct_cache AND ($cachefile == "")) {
+ } elseif ($mime != 'image/jpeg' && !$direct_cache && $cachefile == '') {
$image = @imagecreatefromstring($img_str);
- if($image === FALSE) die();
-
- q("INSERT INTO `photo`
- ( `uid`, `contact-id`, `guid`, `resource-id`, `created`, `edited`, `filename`, `album`, `height`, `width`, `desc`, `data`, `scale`, `profile`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid` )
- VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', '%s', %d, %d, '%s', '%s', '%s', '%s' )",
- 0, 0, get_guid(), dbesc($urlhash),
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- dbesc(basename(dbesc($_REQUEST["url"]))),
- dbesc(''),
- intval(imagesy($image)),
- intval(imagesx($image)),
- $mime,
- dbesc($img_str),
- 100,
- intval(0),
- dbesc(''), dbesc(''), dbesc(''), dbesc('')
- );
+ if ($image === FALSE) {
+ die();
+ }
+ $fields = ['uid' => 0, 'contact-id' => 0, 'guid' => System::createGUID(), 'resource-id' => $urlhash, 'created' => DateTimeFormat::utcNow(), 'edited' => DateTimeFormat::utcNow(),
+ 'filename' => basename($_REQUEST['url']), 'type' => '', 'album' => '', 'height' => imagesy($image), 'width' => imagesx($image),
+ 'datasize' => 0, 'data' => $img_str, 'scale' => 100, 'profile' => 0,
+ 'allow_cid' => '', 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '', 'desc' => $mime];
+ dba::insert('photo', $fields);
} else {
- $img = new Photo($img_str, $mime);
- if($img->is_valid()) {
- if (!$direct_cache AND ($cachefile == ""))
- $img->store(0, 0, $urlhash, $_REQUEST['url'], '', 100);
+ $Image = new Image($img_str, $mime);
+ if ($Image->isValid() && !$direct_cache && ($cachefile == '')) {
+ Photo::store($Image, 0, 0, $urlhash, $_REQUEST['url'], '', 100);
}
}
}
$img_str_orig = $img_str;
// reduce quality - if it isn't a GIF
- if ($mime != "image/gif") {
- $img = new Photo($img_str, $mime);
- if($img->is_valid()) {
- $img->scaleImage($size);
- $img_str = $img->imageString();
+ if ($mime != 'image/gif') {
+ $Image = new Image($img_str, $mime);
+ if ($Image->isValid()) {
+ $Image->scaleDown($size);
+ $img_str = $Image->asString();
}
}
// If there is a real existing directory then put the cache file there
// advantage: real file access is really fast
// Otherwise write in cachefile
- if ($valid AND $direct_cache) {
- file_put_contents($basepath."/proxy/".proxy_url($_REQUEST['url'], true), $img_str_orig);
- if ($sizetype <> '')
- file_put_contents($basepath."/proxy/".proxy_url($_REQUEST['url'], true).$sizetype, $img_str);
- } elseif ($cachefile != '')
+ if ($valid && $direct_cache) {
+ file_put_contents($basepath . '/proxy/' . proxy_url($_REQUEST['url'], true), $img_str_orig);
+ if ($sizetype != '') {
+ file_put_contents($basepath . '/proxy/' . proxy_url($_REQUEST['url'], true) . $sizetype, $img_str);
+ }
+ } elseif ($cachefile != '') {
file_put_contents($cachefile, $img_str_orig);
+ }
- header("Content-type: $mime");
+ header('Content-type: ' . $mime);
// Only output the cache headers when the file is valid
if ($valid) {
- header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
- header('Etag: "'.md5($img_str).'"');
- header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
- header("Cache-Control: max-age=31536000");
+ header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
+ header('Etag: "' . md5($img_str) . '"');
+ header('Expires: ' . gmdate('D, d M Y H:i:s', time() + (31536000)) . ' GMT');
+ header('Cache-Control: max-age=31536000');
}
echo $img_str;
// Only continue if it isn't a local image and the isn't deactivated
if (proxy_is_local_image($url)) {
- $url = str_replace(normalise_link(App::get_baseurl()) . '/', App::get_baseurl() . '/', $url);
+ $url = str_replace(normalise_link(System::baseUrl()) . '/', System::baseUrl() . '/', $url);
return $url;
}
- if (get_config('system', 'proxy_disabled')) {
+ if (Config::get('system', 'proxy_disabled')) {
return $url;
}
$shortpath = hash('md5', $url);
$longpath = substr($shortpath, 0, 2);
- if (is_dir($basepath) and $writemode) {
- if (!is_dir($basepath . '/' . $longpath)) {
- mkdir($basepath . '/' . $longpath);
- chmod($basepath . '/' . $longpath, 0777);
- }
+ if (is_dir($basepath) && $writemode && !is_dir($basepath . '/' . $longpath)) {
+ mkdir($basepath . '/' . $longpath);
+ chmod($basepath . '/' . $longpath, 0777);
}
$longpath .= '/' . strtr(base64_encode($url), '+/', '-_');
- // Extract the URL extension, disregarding GET parameters starting with ?
- $question_mark_pos = strpos($url, '?');
- if ($question_mark_pos === false) {
- $question_mark_pos = strlen($url);
- }
- $dot_pos = strrpos($url, '.', $question_mark_pos - strlen($url));
- if ($dot_pos !== false) {
- $extension = strtolower(substr($url, $dot_pos + 1, $question_mark_pos - ($dot_pos + 1)));
- }
+ // Extract the URL extension
+ $extension = pathinfo(parse_url($url, PHP_URL_PATH), PATHINFO_EXTENSION);
- $extensions = array('jpg', 'jpeg', 'gif', 'png');
+ $extensions = ['jpg', 'jpeg', 'gif', 'png'];
if (in_array($extension, $extensions)) {
$shortpath .= '.' . $extension;
$longpath .= '.' . $extension;
}
- $proxypath = App::get_baseurl() . '/proxy/' . $longpath;
+ $proxypath = System::baseUrl() . '/proxy/' . $longpath;
if ($size != '') {
$size = ':' . $size;
// Too long files aren't supported by Apache
// Writemode in combination with long files shouldn't be possible
- if ((strlen($proxypath) > 250) AND $writemode) {
+ if ((strlen($proxypath) > 250) && $writemode) {
return $shortpath;
} elseif (strlen($proxypath) > 250) {
- return App::get_baseurl() . '/proxy/' . $shortpath . '?url=' . urlencode($url);
+ return System::baseUrl() . '/proxy/' . $shortpath . '?url=' . urlencode($url);
} elseif ($writemode) {
return $longpath;
} else {
* @return boolean
*/
function proxy_is_local_image($url) {
- if ($url[0] == '/') return true;
+ if ($url[0] == '/') {
+ return true;
+ }
- if (strtolower(substr($url, 0, 5)) == "data:") return true;
+ if (strtolower(substr($url, 0, 5)) == 'data:') {
+ return true;
+ }
// links normalised - bug #431
- $baseurl = normalise_link(App::get_baseurl());
+ $baseurl = normalise_link(System::baseUrl());
$url = normalise_link($url);
return (substr($url, 0, strlen($baseurl)) == $baseurl);
}
-function proxy_parse_query($var) {
- /**
- * Use this function to parse out the query array element from
- * the output of parse_url().
- */
- $var = parse_url($var, PHP_URL_QUERY);
- $var = html_entity_decode($var);
- $var = explode('&', $var);
- $arr = array();
-
- foreach($var as $val) {
- $x = explode('=', $val);
- $arr[$x[0]] = $x[1];
- }
-
- unset($val, $x, $var);
- return $arr;
+/**
+ * @brief Return the array of query string parameters from a URL
+ *
+ * @param string $url
+ * @return array Associative array of query string parameters
+ */
+function proxy_parse_query($url) {
+ $query = parse_url($url, PHP_URL_QUERY);
+ $query = html_entity_decode($query);
+ $query_list = explode('&', $query);
+ $arr = [];
+
+ foreach ($query_list as $key_value) {
+ $key_value_list = explode('=', $key_value);
+ $arr[$key_value_list[0]] = $key_value_list[1];
+ }
+
+ unset($url, $query_list, $url);
+ return $arr;
}
function proxy_img_cb($matches) {
-
// if the picture seems to be from another picture cache then take the original source
$queryvar = proxy_parse_query($matches[2]);
- if (($queryvar['url'] != "") AND (substr($queryvar['url'], 0, 4) == "http"))
+ if (($queryvar['url'] != '') && (substr($queryvar['url'], 0, 4) == 'http')) {
$matches[2] = urldecode($queryvar['url']);
+ }
// following line changed per bug #431
- if (proxy_is_local_image($matches[2]))
+ if (proxy_is_local_image($matches[2])) {
return $matches[1] . $matches[2] . $matches[3];
+ }
- return $matches[1].proxy_url(htmlspecialchars_decode($matches[2])).$matches[3];
+ return $matches[1] . proxy_url(htmlspecialchars_decode($matches[2])) . $matches[3];
}
function proxy_parse_html($html) {
- $a = get_app();
- $html = str_replace(normalise_link(App::get_baseurl())."/", App::get_baseurl()."/", $html);
+ $html = str_replace(normalise_link(System::baseUrl()) . '/', System::baseUrl() . '/', $html);
- return preg_replace_callback("/(<img [^>]*src *= *[\"'])([^\"']+)([\"'][^>]*>)/siU", "proxy_img_cb", $html);
+ return preg_replace_callback('/(<img [^>]*src *= *["\'])([^"\']+)(["\'][^>]*>)/siU', 'proxy_img_cb', $html);
}
projects / friendica.git / blobdiff