Merge branch 'api-rework' into working

1 files changed, 253 insertions, 0 deletions

diff --git a/application/service/files.php b/application/service/files.php
new file mode 100644
index 000000000..e31efacc1
--- /dev/null
+++ b/application/service/files.php
@@ -0,0 +1,253 @@
+<?php
+/*
+ * Copyright 2014 Florian "Bluewind" Pritz <bluewind@server-speed.net>
+ *
+ * Licensed under AGPLv3
+ * (see COPYING for full license text)
+ *
+ */
+
+namespace service;
+
+class files {
+
+	static public function history($user)
+	{
+		$CI =& get_instance();
+		$items = array();
+
+		// TODO: thumbnail urls where available
+		$fields = array("id", "filename", "mimetype", "date", "hash", "filesize");
+		$query = $CI->db->select(implode(',', $fields))
+			->from('files')
+			->where('user', $user)
+			->get()->result_array();
+		foreach ($query as $key => $item) {
+			$items[$item["id"]] = $item;
+		}
+
+		$total_size = $CI->db->query("
+			SELECT coalesce(sum(filesize), 0) sum
+			FROM (
+				SELECT DISTINCT hash, filesize
+				FROM `".$CI->db->dbprefix."files`
+				WHERE user = ?
+			) sub
+			", array($user))->row_array();
+
+		$ret["items"] = $items;
+		$ret["multipaste_items"] = self::get_multipaste_history($user);
+		$ret["total_size"] = $total_size["sum"];
+
+		return $ret;
+	}
+
+	static private function get_multipaste_history($user)
+	{
+		$CI =& get_instance();
+		$multipaste_items_grouped = array();
+		$multipaste_items = array();
+
+		$query = $CI->db->get_where("multipaste", array("user_id" => $user))->result_array();
+		$multipaste_info = array();
+		foreach ($query as $item) {
+			$multipaste_info[$item["url_id"]] = $item;
+		}
+
+		$multipaste_items_query = $CI->db
+			->select("m.url_id, f.id")
+			->from("multipaste m")
+			->join("multipaste_file_map mfm", "m.multipaste_id = mfm.multipaste_id")
+			->join("files f", "f.id = mfm.file_url_id")
+			->where("m.user_id", $user)
+			->get()->result_array();
+
+		foreach ($multipaste_items_query as $item) {
+			$multipaste_info[$item["url_id"]]["items"][$item["id"]] = array("id" => $item["id"]);
+		}
+
+		return $multipaste_info;
+	}
+
+	static public function add_file($id, $file, $filename)
+	{
+		$CI =& get_instance();
+		$hash = md5_file($file);
+
+		$dir = $CI->mfile->folder($hash);
+		file_exists($dir) || mkdir ($dir);
+		$new_path = $CI->mfile->file($hash);
+
+		// TODO: make this operation atomic (move to temp name, then to final)
+		// the source can be a different file system so this might do a copy
+		move_uploaded_file($file, $new_path);
+		$CI->mfile->add_file($hash, $id, $filename);
+	}
+
+	static public function verify_uploaded_files($files)
+	{
+		$CI =& get_instance();
+		$errors = array();
+
+		if (empty($files)) {
+			throw new \exceptions\UserInputException("file/no-file", "No file was uploaded or unknown error occured.");
+		}
+
+		foreach ($files as $key => $file) {
+			$error_message = "";
+
+			// getNormalizedFILES() removes any file with error == 4
+			if ($file['error'] !== UPLOAD_ERR_OK) {
+				// ERR_OK only for completeness, condition above ignores it
+				$error_msgs = array(
+					UPLOAD_ERR_OK => "There is no error, the file uploaded with success",
+					UPLOAD_ERR_INI_SIZE => "The uploaded file exceeds the upload_max_filesize directive in php.ini",
+					UPLOAD_ERR_FORM_SIZE => "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form",
+					UPLOAD_ERR_PARTIAL => "The uploaded file was only partially uploaded",
+					UPLOAD_ERR_NO_FILE => "No file was uploaded",
+					UPLOAD_ERR_NO_TMP_DIR => "Missing a temporary folder",
+					UPLOAD_ERR_CANT_WRITE => "Failed to write file to disk",
+					UPLOAD_ERR_EXTENSION => "A PHP extension stopped the file upload",
+				);
+
+				$error_message = "Unknown error.";
+
+				if (isset($error_msgs[$file['error']])) {
+					$error_message = $error_msgs[$file['error']];
+				} else {
+					$error_message = "Unknown error code: ".$file['error'].". Please report a bug.";
+				}
+			}
+
+			$filesize = filesize($file['tmp_name']);
+			if ($filesize > $CI->config->item('upload_max_size')) {
+				$error_message = "File too big";
+			}
+
+			if ($error_message != "") {
+				$errors[$file["formfield"]] = array(
+					"filename" => $file["name"],
+					"formfield" => $file["formfield"],
+					"message" => $error_message,
+				);
+				throw new \exceptions\FileUploadVerifyException("file/upload-verify", "Failed to verify uploaded file(s)", $errors);
+			}
+		}
+	}
+
+	// TODO: streamline this interface to be somewhat atomic in regards to
+	// wrong owner/unknown ids (verify first and throw exception)
+	static public function delete($ids)
+	{
+		$CI =& get_instance();
+
+		$userid = $CI->muser->get_userid();
+		$errors = array();
+		$deleted = array();
+		$deleted_count = 0;
+		$total_count = 0;
+
+		if (!$ids || !is_array($ids)) {
+			throw new \exceptions\UserInputException("file/delete/no-ids", "No IDs specified");
+		}
+
+		foreach ($ids as $id) {
+			$total_count++;
+			$nextID = false;
+
+			foreach (array($CI->mfile, $CI->mmultipaste) as $model) {
+				if ($model->id_exists($id)) {
+					if ($model->get_owner($id) !== $userid) {
+						$errors[$id] = array(
+							"id" => $id,
+							"reason" => "wrong owner",
+						);
+						$nextID = true;
+						continue;
+					}
+					if ($model->delete_id($id)) {
+						$deleted[$id] = array(
+							"id" => $id,
+						);
+						$deleted_count++;
+						$nextID = true;
+					} else {
+						$errors[$id] = array(
+							"id" => $id,
+							"reason" => "unknown error",
+						);
+					}
+				}
+			}
+
+			if ($nextID) {
+				continue;
+			}
+
+			$errors[$id] = array(
+				"id" => $id,
+				"reason" => "doesn't exist",
+			);
+		}
+
+		return array(
+			"errors" => $errors,
+			"deleted" => $deleted,
+			"total_count" => $total_count,
+			"deleted_count" => $deleted_count,
+		);
+	}
+
+	static public function create_multipaste($ids, $userid, $limits)
+	{
+		$CI =& get_instance();
+
+		if (!$ids || !is_array($ids)) {
+			throw new \exceptions\UserInputException("file/create_multipaste/no-ids", "No IDs specified");
+		}
+
+		if (count(array_unique($ids)) != count($ids)) {
+			throw new \exceptions\UserInputException("file/create_multipaste/duplicate-id", "Duplicate IDs are not supported");
+		}
+
+		$errors = array();
+
+		foreach ($ids as $id) {
+			if (!$CI->mfile->id_exists($id)) {
+				$errors[$id] = array(
+					"id" => $id,
+					"reason" => "doesn't exist",
+				);
+				continue;
+			}
+
+			$filedata = $CI->mfile->get_filedata($id);
+			if ($filedata["user"] != $userid) {
+				$errors[$id] = array(
+					"id" => $id,
+					"reason" => "not owned by you",
+				);
+			}
+		}
+
+		if (!empty($errors)) {
+			throw new \exceptions\VerifyException("file/create_multipaste/verify-failed", "Failed to verify ID(s)", $errors);
+		}
+
+		$url_id = $CI->mmultipaste->new_id($limits[0], $limits[1]);
+
+		$multipaste_id = $CI->mmultipaste->get_multipaste_id($url_id);
+		assert($multipaste_id !== false);
+
+		foreach ($ids as $id) {
+			$CI->db->insert("multipaste_file_map", array(
+				"file_url_id" => $id,
+				"multipaste_id" => $multipaste_id,
+			));
+		}
+
+		return array(
+			"url_id" => $url_id,
+		);
+	}
+}