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contrib/image_hash_ban/main.php
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157
contrib/image_hash_ban/main.php
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<?php
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/**
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* Name: Image Hash Ban
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* Author: ATravelingGeek (atg@atravelinggeek.com
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* Link: http://atravelinggeek.com/
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* License: GPLv2
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* Description: Ban images based on their hash
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* Based on the ResolutionLimit and IPban extensions by Shish
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* Version 0.1
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* October 21, 2007
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*/
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// RemoveImageHashBanEvent {{{
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class RemoveImageHashBanEvent extends Event {
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var $hash;
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public function RemoveImageHashBanEvent($hash) {
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$this->hash = $hash;
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}
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}
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// }}}
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// AddImageHashBanEvent {{{
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class AddImageHashBanEvent extends Event {
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var $hash;
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var $reason;
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public function AddImageHashBanEvent($hash, $reason) {
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$this->hash = $hash;
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$this->reason = $reason;
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}
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}
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class Image_Hash_Ban extends Extension {
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public function receive_event($event) {
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if(is_null($this->theme)) $this->theme = get_theme_object("Image_Hash_Ban", "ImageBanTheme");
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if(is_a($event, 'InitExtEvent')) {
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global $config;
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if($config->get_int("ext_imageban_version") < 1) {
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$this->install();
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}
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}
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if(is_a($event, 'UploadingImageEvent')) {
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global $database;
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$image = $event->image;
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$tmp_hash = $image->hash;
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if ($database->db->GetOne("SELECT COUNT(*) FROM image_bans WHERE hash = ?", $tmp_hash) == 1) {
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$event->veto("This image has been banned!");
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}
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}
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if(is_a($event, 'PageRequestEvent') && ($event->page_name == "image_hash_ban")) {
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global $user;
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if($user->is_admin()) {
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if($event->get_arg(0) == "add") {
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if(isset($_POST['hash']) && isset($_POST['reason'])) {
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send_event(new AddImageHashBanEvent($_POST['hash'], $_POST['reason']));
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global $page;
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$page->set_mode("redirect");
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$page->set_redirect(make_link("admin"));
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}
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}
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else if($event->get_arg(0) == "remove") {
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if(isset($_POST['hash'])) {
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send_event(new RemoveImageHashBanEvent($_POST['hash']));
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global $page;
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$page->set_mode("redirect");
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$page->set_redirect(make_link("admin"));
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}
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}
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}
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}
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if(is_a($event, 'AdminBuildingEvent')) {
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global $page;
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$this->theme->display_Image_hash_Bans($page, $this->get_image_hash_bans());
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}
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if(is_a($event, 'AddImageHashBanEvent')) {
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$this->add_image_hash_ban($event->hash, $event->reason);
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}
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if(is_a($event, 'RemoveImageHashBanEvent')) {
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$this->remove_image_hash_ban($event->hash);
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}
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if(is_a($event, 'DisplayingImageEvent')) {
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global $user;
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if($user->is_admin()) {
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$this->theme->display_image_banner($event->page, $event->image->hash);
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}
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}
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}
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protected function install() {
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global $database;
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global $config;
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$database->Execute("CREATE TABLE image_bans (
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id int(11) NOT NULL auto_increment,
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hash char(32) default NULL,
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date datetime default NULL,
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reason varchar(255) default NULL,
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PRIMARY KEY (id)
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)");
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$config->set_int("ext_imageban_version", 1);
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}
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// DB funness
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public function get_image_hash_bans() {
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// FIXME: many
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global $database;
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$bans = $database->db->GetAll("SELECT * FROM image_bans");
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if($bans) {return $bans;}
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else {return array();}
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}
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public function get_image_hash_ban($hash) {
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global $database;
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// yes, this is "? LIKE var", because ? is the thing with matching tokens
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// actually, slow
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// return $database->db->GetRow("SELECT * FROM bans WHERE ? LIKE ip AND date < now() AND (end > now() OR isnull(end))", array($ip));
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return $database->db->GetRow("SELECT * FROM image_bans WHERE hash = ? AND date < now()", array($hash));
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}
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public function add_image_hash_ban($hash, $reason) {
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global $database;
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$database->Execute(
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"INSERT INTO image_bans (hash, reason, date) VALUES (?, ?, now())",
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array($hash, $reason));
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}
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public function remove_image_hash_ban($hash) {
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global $database;
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$database->Execute("DELETE FROM image_bans WHERE hash = ?", array($hash));
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}
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}
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add_event_listener(new Image_Hash_Ban(), 30); // in before resolution limit plugin
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?>
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82
contrib/image_hash_ban/theme.php
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82
contrib/image_hash_ban/theme.php
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<?php
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/**
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* Name: Image Hash Ban
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* Author: ATravelingGeek (atg@atravelinggeek.com
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* Link: http://atravelinggeek.com/
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* License: GPLv2
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* Description: Ban images based on their hash
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* Based on the ResolutionLimit and IPban extensions by Shish
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* Version 0.1
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* October 21, 2007
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*/
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class ImageBanTheme extends Themelet {
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/*
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* Show all the bans
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*
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* $bans = an array of (
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* 'hash' => the banned hash
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* 'reason' => why the hash was banned
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* 'date' => when the ban started
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* )
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*/
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public function display_image_hash_bans($page, $bans) {
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$h_bans = "";
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foreach($bans as $ban) {
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$h_bans .= "
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<tr>
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<td>{$ban['hash']}</td>
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<td>{$ban['reason']}</td>
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<td>
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<form action='".make_link("image_hash_ban/remove")."' method='POST'>
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<input type='hidden' name='hash' value='{$ban['hash']}'>
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<input type='submit' value='Remove'>
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</form>
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</td>
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</tr>
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";
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}
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$html = "
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<table border='1'>
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<thead><td>Hash</td><td>Reason</td><td>Action</td></thead>
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$h_bans
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<tr>
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<form action='".make_link("image_hash_ban/add")."' method='POST'>
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<td><input type='text' name='hash'></td>
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<td><input type='text' name='reason'></td>
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<td><input type='submit' value='Ban'></td>
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</form>
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</tr>
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</table>
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";
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$page->add_block(new Block("Edit Image Bans", $html));
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}
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public function display_page($page) {
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$page->set_title("Image Ban");
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$page->set_heading("Image Ban");
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$page->add_block(new NavBlock());
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}
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/*
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* Display a link to delete an image
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*
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* $image_id = the image to delete
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*/
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public function display_image_banner($page, $image_hash) {
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/* I'll fix this soon
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$i_image_hash = int_escape($image_hash);
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$html = "
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<form action='".make_link("admin/image_hash_ban")."' method='POST'>
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<input type='hidden' name='image_hash' value='$i_image_hash'>
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<input type='field' name='reason'>
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<input type='submit' value='Ban and Delete'>
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</form>
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";
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$page->add_block(new Block("Image Ban", $html, "left"));
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*/
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}
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}
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?>
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