etsy/morgue

<?php

use Sabre\DAV\Client;

include 'vendor/autoload.php';
/* 
 * Wraps and adapts Sabre webdav client to our use.
 * By design all files will be uploaded to a directory
 * named the same as the username.
 * In that directory we will attempt to create a directory
 * named for the event_id (some number) and images
 * associated with that event will be placed in that directory.
 *
 * Example.  Username: morgue
 *           Event ID: 13
 *           upload file name: a_graph.png
 * will attempt to MKCOL /morgue/13
 * and then PUT our file into /morgue/13/a_graph.png
 */
class Uploader_Webdav {

    public $url;
    public $username;
    public $password;
    public $proxy;

    // Please pass in the appropriate stuff
    public function __construct($options = []) {
        foreach ($options as $key => $value) {
            if (property_exists($this, $key)) {
                $this->$key = $value;
            }
        }
        $this->create_client();
    }

    private function create_client() {
        $this->client = new Client(array(
            'baseUri' => $this->url,
            'userName' => $this->username,
            'password' => $this->password,
            'proxy' => $this->proxy
        ));
    }

    private function read_file($filepath) {
        $fh = fopen($filepath, 'r');
        $content =  fread($fh, filesize($filepath));
        fclose($fh);
        return $content;
    }

    // Creates the directory into which we will PUT our file
    private function make_destination($destination_dir) {
        if (empty($destination_dir)) {
            $dir_path = "{$this->username}";
        } else {
            $dir_path = "{$this->username}/{$destination_dir}";
        }

        $mkcol_response = $this->client->request('MKCOL', $dir_path);

        if ($mkcol_response['statusCode'] >= 400) {
            error_log("WebDAV Driver: {$mkcol_response['statusCode']} on MKCOL");
            // It kinda doesn't like creating a dir that exists
            // but only kinda.
        }
        return $dir_path;
    }


    public function send($filepath, $destination_dir = '') {

        // Can we optimize this and just use the tmp file
        // that was uploaded? Probably.
        $content = $this->read_file($filepath);

        $file_name = basename($filepath);
        $file_name = rawurlencode($file_name);

        $dir_path = $this->make_destination($destination_dir);

        $response = $this->client->request('PUT', "/{$dir_path}/" . $file_name, $content);
        $status = $response['statusCode'];
        error_log("WebDAV Driver: {$status} on PUT");

        if ($status >= 400) {
            throw new Exception("Upload failed PUTting the file");
        } else {
        }

        // Which response code when a new file is really 
        /* A status code of 201 means a new file was created.
         * In that case there will also be a location value.
         *
         * A status code of 204 means a file of the same name
         * already exists.
         */
        if ($status == 204) {
            $location = $this->url . "/" .
                $dir_path . "/" . $file_name;            
        } else {
            $location = $response['headers']['location'];
        }

        return array(
            "location"    => $location,
            "status"    => $status
        );

    }

    private function process_response($response) {

    }
}