manual cherry-pick of 9ab297b0b67a7f91f3c8314ad71728063d2fafb7

Half of this (the base library part) was already on master.

Import refactor: moved the transporter classes out of files importer and into base library

htdocs/import/file/lib.php

@@ -179,73 +179,4 @@ class PluginImportFile extends PluginImport {
     }
 }
 
-class MnetImporterTransport extends ImporterTransport {
-
-    private $importer;
-
-    private $host;
-    private $token;
-
-    private $relativepath;
-    private $tempdir;
-    private $zipfilename;
-
-    public function __construct(Importer $importer) {
-        $this->importer = $importer;
-        $this->token = $importer->get('token');
-        $this->host = get_record('host', 'wwwroot', $importer->get('host'));
-    }
-
-    public function cleanup() {
-        if (empty($this->tempdir)) {
-            return;
-        }
-        rmdirr($this->tempdir);
-    }
-
-    public function prepare_files() {
-        require_once(get_config('docroot') . 'api/xmlrpc/client.php');
-        $client = new Client();
-        try {
-            $client->set_method('portfolio/mahara/lib.php/fetch_file')
-                    ->add_param($this->token)
-                    ->send($this->host->wwwroot);
-        } catch (XmlrpcClientException $e) {
-            throw new ImportException('Failed to retrieve zipfile from remote server: ' . $e->getMessage());
-        }
-        if (!$filecontents = base64_decode($client->response)) {
-            throw new ImportException('Failed to retrieve zipfile from remote server');
-        }
-
-        $this->relativepath = 'temp/import/' . $this->importer->get('id') . '/';
-        if ($tmpdir = get_config('unziptempdir')) {
-            $this->tempdir = $tmpdir . $this->relativepath;
-        }
-        else {
-            $this->tempdir = get_config('dataroot') . $this->relativepath;
-        }
-        if (!check_dir_exists($this->tempdir)) {
-            throw new ImportException('Failed to create the temporary directories to work in');
-        }
-
-        $this->zipfilename = 'import.zip';
-        if (!file_put_contents($this->tempdir  . $this->zipfilename, $filecontents)) {
-            throw new ImportException('Failed to write out the zipfile to local temporary storage');
-        }
-    }
-
-    public function files_info() {
-        return array(
-            'zipfile' => $this->zipfilename,
-            'tempdir' => $this->tempdir,
-            'relativepath' => $this->relativepath,
-        );
-    }
-
-    public function get_description() {
-        return get_string('remotehost', 'mahara', $this->host->name);
-    }
-}
-
-
 ?>