* Name: Privacy Image Cache
* Version: 0.1
* Author: Tobias Hößl <https://github.com/CatoTH/>
+ * Status: Unsupported
*/
define("PRIVACY_IMAGE_CACHE_DEFAULT_TIME", 86400); // 1 Day
require_once('include/security.php');
+require_once("include/Photo.php");
function privacy_image_cache_install() {
register_hook('prepare_body', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_prepare_body_hook');
function privacy_image_cache_init() {
global $a, $_SERVER;
+ // The code needs to be reworked, it is too complicated
+ //
+ // it is doing the following:
+ // 1. If a folder "privacy_image_cache" exists and is writeable, then use this for caching
+ // 2. If a cache path is defined, use this
+ // 3. If everything else failed, cache into the database
+
if (isset($_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");
exit;
}
- //if ($a->config["system"]["db_log"] != "")
- // $stamp1 = microtime(true);
-
if(function_exists('header_remove')) {
header_remove('Pragma');
header_remove('pragma');
}
$thumb = false;
+ $size = 1024;
+
+ // If the cache path isn't there, try to create it
+ if (!is_dir($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache"))
+ if (is_writable($_SERVER["DOCUMENT_ROOT"]))
+ mkdir($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache");
+
+ // Checking if caching into a folder in the webroot is activated and working
+ $direct_cache = (is_dir($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache") AND is_writable($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache"));
// Look for filename in the arguments
- if (isset($a->argv[1]) OR isset($a->argv[2])) {
- if (isset($a->argv[2]))
+ if (isset($a->argv[1]) OR isset($a->argv[2]) OR isset($a->argv[3])) {
+ if (isset($a->argv[3]))
+ $url = $a->argv[3];
+ elseif (isset($a->argv[2]))
$url = $a->argv[2];
else
$url = $a->argv[1];
- $pos = strrpos($url, "==.");
+ //$thumb = (isset($a->argv[3]) and ($a->argv[3] == "thumb"));
+ if (isset($a->argv[3]) and ($a->argv[3] == "thumb"))
+ $size = 200;
+
+ // thumb, small, medium and large.
+ if (substr($url, -6) == ":thumb")
+ $size = 150;
+ if (substr($url, -6) == ":small")
+ $size = 340;
+ if (substr($url, -7) == ":medium")
+ $size = 600;
+ if (substr($url, -6) == ":large")
+ $size = 1024;
+
+ $pos = strrpos($url, "=.");
if ($pos)
- $url = substr($url, 0, $pos+2);
+ $url = substr($url, 0, $pos+1);
+
+ $url = str_replace(array(".jpg", ".jpeg", ".gif", ".png"), array("","","",""), $url);
$url = base64_decode(strtr($url, '-_', '+/'), true);
+
if ($url)
$_REQUEST['url'] = $url;
-
- $thumb = (isset($a->argv[3]) and ($a->argv[3] == "thumb"));
}
- $urlhash = 'pic:' . sha1($_REQUEST['url']);
- // Double encoded url - happens with Diaspora
- $urlhash2 = 'pic:' . sha1(urldecode($_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");
-
- echo $img_str;
-
- //if ($a->config["system"]["db_log"] != "") {
- // $stamp2 = microtime(true);
- // $duration = round($stamp2-$stamp1, 3);
- // if ($duration > $a->config["system"]["db_loglimit"])
- // @file_put_contents($a->config["system"]["db_log"], $duration."\t".strlen($img_str)."\t".$_REQUEST['url']."\n", FILE_APPEND);
- //}
-
- killme();
+ if (!$direct_cache) {
+ $urlhash = 'pic:' . sha1($_REQUEST['url']);
+ // Double encoded url - happens with Diaspora
+ $urlhash2 = 'pic:' . sha1(urldecode($_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();
+ }
+ }
+
+ echo $img_str;
+ killme();
+ }
}
- }
-
- require_once("Photo.php");
+ } else
+ $cachefile = "";
$valid = true;
- $r = q("SELECT * FROM `photo` WHERE `resource-id` in ('%s', '%s') LIMIT 1", $urlhash, $urlhash2);
- if (count($r)) {
- $img_str = $r[0]['data'];
- $mime = $r[0]["desc"];
- if ($mime == "") $mime = "image/jpeg";
+ if (!$direct_cache AND ($cachefile == "")) {
+ $r = q("SELECT * FROM `photo` WHERE `resource-id` in ('%s', '%s') LIMIT 1", $urlhash, $urlhash2);
+ if (count($r)) {
+ $img_str = $r[0]['data'];
+ $mime = $r[0]["desc"];
+ if ($mime == "") $mime = "image/jpeg";
+ }
+ } else
+ $r = array();
- } else {
+ if (!count($r)) {
// It shouldn't happen but it does - spaces in URL
$_REQUEST['url'] = str_replace(" ", "+", $_REQUEST['url']);
+ $redirects = 0;
+ $img_str = fetch_url($_REQUEST['url'],true, $redirects, 10);
- $img_str = fetch_url($_REQUEST['url'],true);
-
- $tempfile = tempnam(get_config("system","temppath"), "cache");
+ $tempfile = tempnam(get_temppath(), "cache");
file_put_contents($tempfile, $img_str);
$mime = image_type_to_mime_type(exif_imagetype($tempfile));
unlink($tempfile);
$mime = "image/png";
$cachefile = ""; // Clear the cachefile so that the dummy isn't stored
$valid = false;
- $img = new Photo($img_str);
+ $img = new Photo($img_str, "image/png");
if($img->is_valid()) {
- $img->scaleImage(1);
+ $img->scaleImage(10);
$img_str = $img->imageString();
}
- //} else if (substr($img_str, 0, 6) == "GIF89a") {
- } else if ($mime != "image/jpeg") {
+ } else if (($mime != "image/jpeg") AND !$direct_cache AND ($cachefile == "")) {
$image = @imagecreatefromstring($img_str);
if($image === FALSE) die();
);
} else {
- $img = new Photo($img_str);
+ $img = new Photo($img_str, $mime);
if($img->is_valid()) {
- $img->store(0, 0, $urlhash, $_REQUEST['url'], '', 100);
- if ($thumb)
- $img->scaleImage(200); // Test
- $img_str = $img->imageString();
+ if (!$direct_cache AND ($cachefile == ""))
+ $img->store(0, 0, $urlhash, $_REQUEST['url'], '', 100);
+
+ //if ($thumb) {
+ // $img->scaleImage(200); // Test
+ // $img_str = $img->imageString();
+ //}
}
- $mime = "image/jpeg";
+ //$mime = "image/jpeg";
}
}
+ // reduce quality - if it isn't a GIF
+ if ($mime != "image/gif") {
+ $img = new Photo($img_str, $mime);
+ if($img->is_valid()) {
+ //$img->scaleImage(1024); // Test
+ $img->scaleImage($size);
+ $img_str = $img->imageString();
+ }
+ }
// If there is a real existing directory then put the cache file there
// advantage: real file access is really fast
// Otherwise write in cachefile
- if ($valid AND is_dir($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache"))
+ if ($valid AND $direct_cache)
file_put_contents($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache/".privacy_image_cache_cachename($_REQUEST['url'], true), $img_str);
elseif ($cachefile != '')
file_put_contents($cachefile, $img_str);
echo $img_str;
- //if ($a->config["system"]["db_log"] != "") {
- // $stamp2 = microtime(true);
- // $duration = round($stamp2-$stamp1, 3);
- // if ($duration > $a->config["system"]["db_loglimit"])
- // @file_put_contents($a->config["system"]["db_log"], $duration."\t".strlen($img_str)."\t".$_REQUEST['url']."\n", FILE_APPEND);
- //}
-
killme();
}
function privacy_image_cache_cachename($url, $writemode = false) {
global $_SERVER;
+ $pos = strrpos($url, ".");
+ if ($pos) {
+ $extension = strtolower(substr($url, $pos+1));
+ $pos = strpos($extension, "?");
+ if ($pos)
+ $extension = substr($extension, 0, $pos);
+ }
+
$basepath = $_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache";
$path = substr(hash("md5", $url), 0, 2);
$path .= "/".strtr(base64_encode($url), '+/', '-_');
+ $extensions = array("jpg", "jpeg", "gif", "png");
+
+ if (in_array($extension, $extensions))
+ $path .= ".".$extension;
+
return($path);
}
// Check if the cached path would be longer than 255 characters - apache doesn't like it
if (is_dir($_SERVER["DOCUMENT_ROOT"]."/privacy_image_cache")) {
$cachedurl = get_app()->get_baseurl()."/privacy_image_cache/". privacy_image_cache_cachename($url);
- if (strlen($url) > 255)
+ if (strlen($url) > 150)
return true;
}
* @return string
*/
function privacy_image_cache_img_cb($matches) {
+
+ // if the picture seems to be from another picture cache then take the original source
+ $queryvar = privacy_image_cache_parse_query($matches[2]);
+ if (($queryvar['url'] != "") AND (substr($queryvar['url'], 0, 4) == "http"))
+ $matches[2] = urldecode($queryvar['url']);
+
+ // if fetching facebook pictures don't fetch the thumbnail but the big one
+ //if (((strpos($matches[2], ".fbcdn.net/") OR strpos($matches[2], "/fbcdn-photos-"))) and (substr($matches[2], -6) == "_s.jpg"))
+ // $matches[2] = substr($matches[2], 0, -6)."_n.jpg";
+
// following line changed per bug #431
if (privacy_image_cache_is_local_image($matches[2]))
return $matches[1] . $matches[2] . $matches[3];
if (isset($o["output"])) {
if (isset($o["output"]["thumb"]) && !privacy_image_cache_is_local_image($o["output"]["thumb"]))
$o["output"]["thumb"] = $a->get_baseurl() . "/privacy_image_cache/".privacy_image_cache_cachename($o["output"]["thumb"]);
- //$o["output"]["thumb"] = $a->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($o["output"]["thumb"])));
if (isset($o["output"]["author-avatar"]) && !privacy_image_cache_is_local_image($o["output"]["author-avatar"]))
$o["output"]["author-avatar"] = $a->get_baseurl() . "/privacy_image_cache/".privacy_image_cache_cachename($o["output"]["author-avatar"]);
- //$o["output"]["author-avatar"] = $a->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($o["output"]["author-avatar"])));
if (isset($o["output"]["owner-avatar"]) && !privacy_image_cache_is_local_image($o["output"]["owner-avatar"]))
$o["output"]["owner-avatar"] = $a->get_baseurl() . "/privacy_image_cache/".privacy_image_cache_cachename($o["output"]["owner-avatar"]);
- //$o["output"]["owner-avatar"] = $a->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($o["output"]["owner-avatar"])));
+ if (isset($o["output"]["owner_photo"]) && !privacy_image_cache_is_local_image($o["output"]["owner_photo"]))
+ $o["output"]["owner_photo"] = $a->get_baseurl() . "/privacy_image_cache/".privacy_image_cache_cachename($o["output"]["owner_photo"]);
}
}
* @param string $o
*/
function privacy_image_cache_ping_xmlize_hook(&$a, &$o) {
- if ($o["photo"] != "" && !privacy_image_cache_is_local_image($o["photo"]))
- $o["photo"] = $a->get_baseurl() . "/privacy_image_cache/".privacy_image_cache_cachename($o["photo"]);
+ if ($o["photo"] != "" && !privacy_image_cache_is_local_image($o["photo"]))
+ $o["photo"] = $a->get_baseurl() . "/privacy_image_cache/".privacy_image_cache_cachename($o["photo"]);
//$o["photo"] = $a->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($o["photo"])));
}
logger("Purging old Cache of the Privacy Image Cache", LOGGER_DEBUG);
q('DELETE FROM `photo` WHERE `uid` = 0 AND `resource-id` LIKE "pic:%%" AND `created` < NOW() - INTERVAL %d SECOND', $cachetime);
- set_config('pi_cache', 'last_delete', $time);
clear_cache($a->get_basepath(), $a->get_basepath()."/privacy_image_cache");
-}
-
-
+ set_config('pi_cache', 'last_delete', $time);
+}
/**
* @param App $a
q('DELETE FROM `photo` WHERE `uid` = 0 AND `resource-id` LIKE "pic:%%"');
}
}
+
+function privacy_image_cache_parse_query($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;
+}
projects / friendica-addons.git / blobdiff