118 lines
3.4 KiB
PHP
118 lines
3.4 KiB
PHP
<?php
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class AddAliasEvent extends Event {
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var $oldtag;
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var $newtag;
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public function AddAliasEvent($oldtag, $newtag) {
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$this->oldtag = $oldtag;
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$this->newtag = $newtag;
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}
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}
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class AddAliasException extends SCoreException {}
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class AliasEditor implements Extension {
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var $theme;
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public function receive_event(Event $event) {
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if(is_null($this->theme)) $this->theme = get_theme_object($this);
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if(($event instanceof PageRequestEvent) && $event->page_matches("alias")) {
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if($event->get_arg(0) == "add") {
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if($event->user->is_admin()) {
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if(isset($_POST['oldtag']) && isset($_POST['newtag'])) {
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try {
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$aae = new AddAliasEvent($_POST['oldtag'], $_POST['newtag']);
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send_event($aae);
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$event->page->set_mode("redirect");
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$event->page->set_redirect(make_link("alias/list"));
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}
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catch(AddAliasException $ex) {
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$this->theme->display_error($event->page, "Error adding alias", $ex->getMessage());
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}
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}
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}
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}
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else if($event->get_arg(0) == "remove") {
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if($event->user->is_admin()) {
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if(isset($_POST['oldtag'])) {
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global $database;
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$database->Execute("DELETE FROM aliases WHERE oldtag=?", array($_POST['oldtag']));
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$event->page->set_mode("redirect");
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$event->page->set_redirect(make_link("alias/list"));
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}
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}
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}
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else if($event->get_arg(0) == "list") {
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global $database;
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$this->theme->display_aliases($event->page,
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$database->db->GetAssoc("SELECT oldtag, newtag FROM aliases ORDER BY newtag"),
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$event->user->is_admin());
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}
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else if($event->get_arg(0) == "export") {
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global $database;
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$event->page->set_mode("data");
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$event->page->set_type("text/plain");
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$event->page->set_data($this->get_alias_csv($database));
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}
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else if($event->get_arg(0) == "import") {
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if($event->user->is_admin()) {
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print_r($_FILES);
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if(count($_FILES) > 0) {
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global $database;
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$tmp = $_FILES['alias_file']['tmp_name'];
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$contents = file_get_contents($tmp);
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$this->add_alias_csv($database, $contents);
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$event->page->set_mode("redirect");
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$event->page->set_redirect(make_link("alias/list"));
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}
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else {
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$this->theme->display_error($event->page, "No File Specified", "You have to upload a file");
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}
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}
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else {
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$this->theme->display_error($event->page, "Admins Only", "Only admins can edit the alias list");
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}
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}
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}
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if($event instanceof AddAliasEvent) {
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global $database;
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$pair = array($event->oldtag, $event->newtag);
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if($database->db->GetRow("SELECT * FROM aliases WHERE oldtag=? AND lower(newtag)=lower(?)", $pair)) {
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throw new AddAliasException("That alias already exists");
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}
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else {
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$database->Execute("INSERT INTO aliases(oldtag, newtag) VALUES(?, ?)", $pair);
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}
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}
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if($event instanceof UserBlockBuildingEvent) {
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if($event->user->is_admin()) {
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$event->add_link("Alias Editor", make_link("alias/list"));
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}
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}
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}
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private function get_alias_csv($database) {
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$csv = "";
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$aliases = $database->db->GetAssoc("SELECT oldtag, newtag FROM aliases");
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foreach($aliases as $old => $new) {
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$csv .= "$old,$new\n";
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}
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return $csv;
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}
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private function add_alias_csv($database, $csv) {
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foreach(explode("\n", $csv) as $line) {
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$parts = explode(",", $line);
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if(count($parts) == 2) {
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$database->execute("INSERT INTO aliases(oldtag, newtag) VALUES(?, ?)", $parts);
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}
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}
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}
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}
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add_event_listener(new AliasEditor());
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?>
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