216 lines
7.6 KiB
PHP
216 lines
7.6 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Name: Privacy Image Cache
|
|
* Version: 0.1
|
|
* Author: Tobias Hößl <https://github.com/CatoTH/>
|
|
*/
|
|
|
|
define("PRIVACY_IMAGE_CACHE_DEFAULT_TIME", 86400); // 1 Day
|
|
|
|
require_once('include/security.php');
|
|
|
|
function privacy_image_cache_install() {
|
|
register_hook('bbcode', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_bbcode_hook');
|
|
register_hook('display_item', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_display_item_hook');
|
|
register_hook('ping_xmlize', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_ping_xmlize_hook');
|
|
register_hook('cron', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_cron');
|
|
}
|
|
|
|
|
|
function privacy_image_cache_uninstall() {
|
|
unregister_hook('bbcode', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_bbcode_hook');
|
|
unregister_hook('display_item', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_display_item_hook');
|
|
unregister_hook('ping_xmlize', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_ping_xmlize_hook');
|
|
unregister_hook('cron', 'addon/privacy_image_cache/privacy_image_cache.php', 'privacy_image_cache_cron');
|
|
}
|
|
|
|
|
|
function privacy_image_cache_module() {}
|
|
|
|
|
|
function privacy_image_cache_init() {
|
|
if(function_exists('header_remove')) {
|
|
header_remove('Pragma');
|
|
header_remove('pragma');
|
|
}
|
|
|
|
$urlhash = 'pic:' . sha1($_REQUEST['url']);
|
|
// Double encoded url - happens with Diaspora
|
|
$urlhash2 = 'pic:' . sha1(urldecode($_REQUEST['url']));
|
|
|
|
$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 {
|
|
require_once("Photo.php");
|
|
|
|
$img_str = fetch_url($_REQUEST['url'],true);
|
|
if (substr($img_str, 0, 6) == "GIF89a") {
|
|
$mime = "image/gif";
|
|
$image = @imagecreatefromstring($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($image)),
|
|
'image/gif',
|
|
dbesc($img_str),
|
|
100,
|
|
intval(0),
|
|
dbesc(''), dbesc(''), dbesc(''), dbesc('')
|
|
);
|
|
|
|
} else {
|
|
$img = new Photo($img_str);
|
|
if($img->is_valid()) {
|
|
$img->store(0, 0, $urlhash, $_REQUEST['url'], '', 100);
|
|
$img_str = $img->imageString();
|
|
}
|
|
$mime = "image/jpeg";
|
|
}
|
|
}
|
|
|
|
|
|
header("Content-type: $mime");
|
|
header("Expires: " . gmdate("D, d M Y H:i:s", time() + (3600*24)) . " GMT");
|
|
header("Cache-Control: max-age=" . (3600*24));
|
|
|
|
echo $img_str;
|
|
|
|
killme();
|
|
}
|
|
|
|
/**
|
|
* @param $url string
|
|
* @return boolean
|
|
*/
|
|
function privacy_image_cache_is_local_image($url) {
|
|
if ($url[0] == '/') return true;
|
|
if (strtolower(substr($url, 0, 5)) == "data:") return true;
|
|
|
|
// links normalised - bug #431
|
|
$baseurl = normalise_link(get_app()->get_baseurl());
|
|
$url = normalise_link($url);
|
|
return (substr($url, 0, strlen($baseurl)) == $baseurl);
|
|
}
|
|
|
|
/**
|
|
* @param array $matches
|
|
* @return string
|
|
*/
|
|
function privacy_image_cache_img_cb($matches) {
|
|
// following line changed per bug #431
|
|
if (privacy_image_cache_is_local_image($matches[2])) return $matches[1] . $matches[2] . $matches[3];
|
|
return $matches[1] . get_app()->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($matches[2]))) . $matches[3];
|
|
}
|
|
|
|
/**
|
|
* @param App $a
|
|
* @param string $o
|
|
*/
|
|
function privacy_image_cache_bbcode_hook(&$a, &$o) {
|
|
$o = preg_replace_callback("/(<img [^>]*src *= *[\"'])([^\"']+)([\"'][^>]*>)/siU", "privacy_image_cache_img_cb", $o);
|
|
}
|
|
|
|
|
|
/**
|
|
* @param App $a
|
|
* @param string $o
|
|
*/
|
|
function privacy_image_cache_display_item_hook(&$a, &$o) {
|
|
if (isset($o["output"])) {
|
|
if (isset($o["output"]["thumb"]) && !privacy_image_cache_is_local_image($o["output"]["thumb"]))
|
|
$o["output"]["thumb"] = $a->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($o["output"]["thumb"])));
|
|
if (isset($o["output"]["author-avatar"]) && !privacy_image_cache_is_local_image($o["output"]["author-avatar"]))
|
|
$o["output"]["author-avatar"] = $a->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($o["output"]["author-avatar"])));
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @param App $a
|
|
* @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"] = $a->get_baseurl() . "/privacy_image_cache/?url=" . escape_tags(addslashes(rawurlencode($o["photo"])));
|
|
}
|
|
|
|
|
|
/**
|
|
* @param App $a
|
|
* @param null|object $b
|
|
*/
|
|
function privacy_image_cache_cron(&$a = null, &$b = null) {
|
|
$cachetime = get_config('privacy_image_cache','cache_time');
|
|
if (!$cachetime) $cachetime = PRIVACY_IMAGE_CACHE_DEFAULT_TIME;
|
|
|
|
$last = get_config('pi_cache','last_delete');
|
|
$time = time();
|
|
if ($time < ($last + 3600)) return;
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
* @param App $a
|
|
* @param null|object $o
|
|
*/
|
|
function privacy_image_cache_plugin_admin(&$a, &$o){
|
|
|
|
|
|
$o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("picsave") . '">';
|
|
|
|
$cachetime = get_config('privacy_image_cache','cache_time');
|
|
if (!$cachetime) $cachetime = PRIVACY_IMAGE_CACHE_DEFAULT_TIME;
|
|
$cachetime_h = Ceil($cachetime / 3600);
|
|
|
|
$o .= '<label for="pic_cachetime">' . t('Lifetime of the cache (in hours)') . '</label>
|
|
<input id="pic_cachetime" name="cachetime" type="text" value="' . escape_tags($cachetime_h) . '"><br style="clear: both;">';
|
|
|
|
$o .= '<input type="submit" name="save" value="' . t('Save') . '">';
|
|
|
|
$o .= '<h4>' . t('Cache Statistics') . '</h4>';
|
|
|
|
$num = q('SELECT COUNT(*) num, SUM(LENGTH(data)) size FROM `photo` WHERE `uid`=0 AND `contact-id`=0 AND `resource-id` LIKE "pic:%%"');
|
|
$o .= '<label for="statictics_num">' . t('Number of items') . '</label><input style="color: gray;" id="statistics_num" disabled value="' . escape_tags($num[0]['num']) . '"><br style="clear: both;">';
|
|
$size = Ceil($num[0]['size'] / (1024 * 1024));
|
|
$o .= '<label for="statictics_size">' . t('Size of the cache') . '</label><input style="color: gray;" id="statistics_size" disabled value="' . $size . ' MB"><br style="clear: both;">';
|
|
|
|
$o .= '<input type="submit" name="delete_all" value="' . t('Delete the whole cache') . '">';
|
|
}
|
|
|
|
|
|
/**
|
|
* @param App $a
|
|
* @param null|object $o
|
|
*/
|
|
function privacy_image_cache_plugin_admin_post(&$a = null, &$o = null){
|
|
check_form_security_token_redirectOnErr('/admin/plugins/privacy_image_cache', 'picsave');
|
|
|
|
if (isset($_REQUEST['save'])) {
|
|
$cachetime_h = IntVal($_REQUEST['cachetime']);
|
|
if ($cachetime_h < 1) $cachetime_h = 1;
|
|
set_config('privacy_image_cache','cache_time', $cachetime_h * 3600);
|
|
}
|
|
if (isset($_REQUEST['delete_all'])) {
|
|
q('DELETE FROM `photo` WHERE `uid` = 0 AND `resource-id` LIKE "pic:%%"');
|
|
}
|
|
}
|