From 19f0aab3221dd7760387cbec745c1eca9b215af7 Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluewind@xinu.at>
Date: Sat, 9 Sep 2017 16:08:00 +0200
Subject: WIP: CI3 migration

Signed-off-by: Florian Pritz <bluewind@xinu.at>
---
 application/models/Mmultipaste.php | 184 +++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 application/models/Mmultipaste.php

(limited to 'application/models/Mmultipaste.php')

diff --git a/application/models/Mmultipaste.php b/application/models/Mmultipaste.php
new file mode 100644
index 000000000..52ea4dfb4
--- /dev/null
+++ b/application/models/Mmultipaste.php
@@ -0,0 +1,184 @@
+<?php
+/*
+ * Copyright 2014 Florian "Bluewind" Pritz <bluewind@server-speed.net>
+ *
+ * Licensed under AGPLv3
+ * (see COPYING for full license text)
+ *
+ */
+
+class Mmultipaste extends CI_Model {
+
+	function __construct()
+	{
+		parent::__construct();
+		$this->load->model("muser");
+		$this->load->model("mfile");
+	}
+
+	/**
+	 * Returns an unused ID
+	 *
+	 * @param min minimal length of the resulting ID
+	 * @param max maximum length of the resulting ID
+	 */
+	public function new_id($min = 3, $max = 6)
+	{
+		static $id_blacklist = NULL;
+
+		if ($id_blacklist == NULL) {
+			// This prevents people from being unable to access their uploads
+			// because of URL rewriting
+			$id_blacklist = scandir(FCPATH);
+			$id_blacklist[] = "file";
+			$id_blacklist[] = "user";
+		}
+
+		$max_tries = 100;
+
+		for ($try = 0; $try < $max_tries; $try++) {
+			$id = "m-".random_alphanum($min, $max);
+
+			// TODO: try to insert the id into file_groups instead of checking with
+			// id_exists (prevents race conditio)
+			if ($this->id_exists($id) || in_array($id, $id_blacklist)) {
+				continue;
+			}
+
+			$this->db->insert("multipaste", array(
+				"url_id" => $id,
+				"user_id" => $this->muser->get_userid(),
+				"date" => time(),
+			));
+
+			return $id;
+		}
+
+		throw new \exceptions\PublicApiException("file/new_id-try-limit", "Failed to find unused ID after $max_tries tries");
+	}
+
+	public function id_exists($id)
+	{
+		if (!$id) {
+			return false;
+		}
+
+		$sql = '
+			SELECT url_id
+			FROM '.$this->db->dbprefix.'multipaste
+			WHERE url_id = ?
+			LIMIT 1';
+		$query = $this->db->query($sql, array($id));
+
+		return $query->num_rows() == 1;
+	}
+
+	public function valid_id($id)
+	{
+		$files = $this->get_files($id);
+		if (count($files) === 0) {
+			return false;
+		}
+
+		foreach ($files as $file) {
+			if (!$this->mfile->valid_id($file["id"])) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	function adopt($id)
+	{
+		$userid = $this->muser->get_userid();
+
+		$this->db->set(array('user_id' => $userid ))
+			->where('url_id', $id)
+			->where('user_id', 0)
+			->update('multipaste');
+		return $this->db->affected_rows();
+	}
+
+	public function get_tarball_path($id)
+	{
+		return $this->config->item("upload_path")."/special/multipaste-tarballs/".substr(md5($id), 0, 3)."/$id.tar.gz";
+	}
+
+	public function delete_by_user($userid)
+	{
+		$query = $this->db->select("url_id")
+			->where("user_id", $userid)
+			->get("multipaste")->result_array();
+		$ids = array_map(function ($a) {return $a['url_id'];}, $query);
+
+		foreach ($ids as $id) {
+			$this->delete_id($id);
+		}
+	}
+
+	public function delete_id($id)
+	{
+		$this->db->where('url_id', $id)
+			->delete('multipaste');
+
+		$path = $this->get_tarball_path($id);
+		$f = new \service\storage($this->get_tarball_path($id));
+		$f->unlink();
+
+		return !$this->id_exists($id);
+	}
+
+	public function get_owner($id)
+	{
+		return $this->db->query("
+			SELECT user_id
+			FROM ".$this->db->dbprefix."multipaste
+			WHERE url_id = ?
+			", array($id))->row_array()["user_id"];
+	}
+
+	public function get_multipaste($id)
+	{
+		return $this->db->query("
+			SELECT url_id, user_id, date
+			FROM ".$this->db->dbprefix."multipaste
+			WHERE url_id = ?
+			", array($id))->row_array();
+	}
+
+	public function get_files($url_id)
+	{
+		$ret = array();
+
+		$query = $this->db->query("
+			SELECT mfm.file_url_id
+			FROM ".$this->db->dbprefix."multipaste_file_map mfm
+			JOIN ".$this->db->dbprefix."multipaste m ON m.multipaste_id = mfm.multipaste_id
+			WHERE m.url_id = ?
+			ORDER BY mfm.sort_order
+			", array($url_id))->result_array();
+
+		foreach ($query as $row) {
+			$filedata = $this->mfile->get_filedata($row["file_url_id"]);
+			$ret[] = $filedata;
+		}
+
+		return $ret;
+	}
+
+	public function get_multipaste_id($url_id)
+	{
+		$query = $this->db->query("
+			SELECT multipaste_id
+			FROM ".$this->db->dbprefix."multipaste
+			WHERE url_id = ?
+			", array($url_id));
+
+		if ($query->num_rows() > 0) {
+			return $query->row_array()["multipaste_id"];
+		}
+
+		return false;
+	}
+
+}
-- 
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