395 lines
12 KiB
PHP
395 lines
12 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2010, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Basic client class for Yammer's OAuth/JSON API.
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*
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* @package YammerImportPlugin
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* @author Brion Vibber <brion@status.net>
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*/
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class YammerImporter
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{
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protected $client;
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protected $users=array();
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protected $groups=array();
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protected $notices=array();
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function __construct(SN_YammerClient $client)
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{
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$this->client = $client;
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}
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/**
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* Load or create an imported profile from Yammer data.
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*
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* @param object $item loaded JSON data for Yammer importer
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* @return Profile
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*/
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function importUser($item)
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{
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$data = $this->prepUser($item);
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$profileId = $this->findImportedUser($data['orig_id']);
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if ($profileId) {
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return Profile::staticGet('id', $profileId);
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} else {
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$user = User::register($data['options']);
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$profile = $user->getProfile();
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try {
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$this->saveAvatar($data['avatar'], $profile);
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} catch (Exception $e) {
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common_log(LOG_ERROR, "Error importing Yammer avatar: " . $e->getMessage());
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}
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$this->recordImportedUser($data['orig_id'], $profile->id);
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return $profile;
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}
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}
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/**
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* Load or create an imported group from Yammer data.
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*
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* @param object $item loaded JSON data for Yammer importer
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* @return User_group
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*/
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function importGroup($item)
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{
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$data = $this->prepGroup($item);
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$groupId = $this->findImportedGroup($data['orig_id']);
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if ($groupId) {
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return User_group::staticGet('id', $groupId);
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} else {
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$group = User_group::register($data['options']);
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try {
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$this->saveAvatar($data['avatar'], $group);
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} catch (Exception $e) {
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common_log(LOG_ERROR, "Error importing Yammer avatar: " . $e->getMessage());
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}
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$this->recordImportedGroup($data['orig_id'], $group->id);
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return $group;
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}
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}
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/**
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* Load or create an imported notice from Yammer data.
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*
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* @param object $item loaded JSON data for Yammer importer
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* @return Notice
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*/
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function importNotice($item)
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{
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$data = $this->prepNotice($item);
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$noticeId = $this->findImportedNotice($data['orig_id']);
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if ($noticeId) {
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return Notice::staticGet('id', $noticeId);
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} else {
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$content = $data['content'];
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$user = User::staticGet($data['profile']);
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// Fetch file attachments and add the URLs...
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$uploads = array();
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foreach ($data['attachments'] as $url) {
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try {
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$upload = $this->saveAttachment($url, $user);
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$content .= ' ' . $upload->shortUrl();
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$uploads[] = $upload;
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} catch (Exception $e) {
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common_log(LOG_ERROR, "Error importing Yammer attachment: " . $e->getMessage());
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}
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}
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// Here's the meat! Actually save the dang ol' notice.
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$notice = Notice::saveNew($user->id,
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$content,
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$data['source'],
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$data['options']);
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// Save "likes" as favorites...
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foreach ($data['faves'] as $nickname) {
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$user = User::staticGet('nickname', $nickname);
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if ($user) {
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Fave::addNew($user->getProfile(), $notice);
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}
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}
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// And finally attach the upload records...
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foreach ($uploads as $upload) {
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$upload->attachToNotice($notice);
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}
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$this->recordImportedNotice($data['orig_id'], $notice->id);
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return $notice;
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}
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}
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/**
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* Pull relevant info out of a Yammer data record for a user import.
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*
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* @param array $item
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* @return array
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*/
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function prepUser($item)
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{
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if ($item['type'] != 'user') {
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throw new Exception('Wrong item type sent to Yammer user import processing.');
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}
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$origId = $item['id'];
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$origUrl = $item['url'];
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// @fixme check username rules?
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$options['nickname'] = $item['name'];
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$options['fullname'] = trim($item['full_name']);
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// We don't appear to have full bio avail here!
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$options['bio'] = $item['job_title'];
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// What about other data like emails?
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// Avatar... this will be the "_small" variant.
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// Remove that (pre-extension) suffix to get the orig-size image.
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$avatar = $item['mugshot_url'];
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// Warning: we don't have following state for other users?
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return array('orig_id' => $origId,
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'orig_url' => $origUrl,
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'avatar' => $avatar,
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'options' => $options);
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}
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/**
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* Pull relevant info out of a Yammer data record for a group import.
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*
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* @param array $item
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* @return array
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*/
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function prepGroup($item)
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{
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if ($item['type'] != 'group') {
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throw new Exception('Wrong item type sent to Yammer group import processing.');
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}
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$origId = $item['id'];
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$origUrl = $item['url'];
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$privacy = $item['privacy']; // Warning! only public groups in SN so far
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$options['nickname'] = $item['name'];
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$options['fullname'] = $item['full_name'];
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$options['description'] = $item['description'];
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$options['created'] = $this->timestamp($item['created_at']);
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$avatar = $item['mugshot_url']; // as with user profiles...
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$options['mainpage'] = common_local_url('showgroup',
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array('nickname' => $options['nickname']));
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// @fixme what about admin user for the group?
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// bio? homepage etc? aliases?
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$options['local'] = true;
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return array('orig_id' => $origId,
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'orig_url' => $origUrl,
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'options' => $options);
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}
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/**
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* Pull relevant info out of a Yammer data record for a notice import.
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*
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* @param array $item
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* @return array
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*/
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function prepNotice($item)
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{
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if (isset($item['type']) && $item['type'] != 'message') {
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throw new Exception('Wrong item type sent to Yammer message import processing.');
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}
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$origId = $item['id'];
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$origUrl = $item['url'];
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$profile = $this->findImportedUser($item['sender_id']);
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$content = $item['body']['plain'];
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$source = 'yammer';
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$options = array();
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if ($item['replied_to_id']) {
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$replyTo = $this->findImportedNotice($item['replied_to_id']);
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if ($replyTo) {
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$options['reply_to'] = $replyTo;
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}
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}
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$options['created'] = $this->timestamp($item['created_at']);
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$faves = array();
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foreach ($item['liked_by']['names'] as $liker) {
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// "permalink" is the username. wtf?
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$faves[] = $liker['permalink'];
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}
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$attachments = array();
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foreach ($item['attachments'] as $attach) {
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if ($attach['type'] == 'image') {
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$attachments[] = $attach['image']['url'];
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} else {
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common_log(LOG_WARNING, "Unrecognized Yammer attachment type: " . $attach['type']);
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}
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}
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return array('orig_id' => $origId,
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'orig_url' => $origUrl,
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'profile' => $profile,
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'content' => $content,
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'source' => $source,
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'options' => $options,
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'faves' => $faves,
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'attachments' => $attachments);
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}
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private function findImportedUser($origId)
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{
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if (isset($this->users[$origId])) {
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return $this->users[$origId];
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} else {
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return false;
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}
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}
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private function findImportedGroup($origId)
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{
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if (isset($this->groups[$origId])) {
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return $this->groups[$origId];
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} else {
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return false;
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}
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}
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private function findImportedNotice($origId)
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{
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if (isset($this->notices[$origId])) {
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return $this->notices[$origId];
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} else {
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return false;
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}
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}
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private function recordImportedUser($origId, $userId)
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{
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$this->users[$origId] = $userId;
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}
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private function recordImportedGroup($origId, $groupId)
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{
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$this->groups[$origId] = $groupId;
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}
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private function recordImportedNotice($origId, $noticeId)
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{
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$this->notices[$origId] = $noticeId;
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}
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/**
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* Normalize timestamp format.
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* @param string $ts
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* @return string
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*/
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private function timestamp($ts)
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{
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return common_sql_date(strtotime($ts));
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}
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/**
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* Download and update given avatar image
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*
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* @param string $url
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* @param mixed $dest either a Profile or User_group object
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* @throws Exception in various failure cases
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*/
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private function saveAvatar($url, $dest)
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{
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// Yammer API data mostly gives us the small variant.
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// Try hitting the source image if we can!
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// @fixme no guarantee of this URL scheme I think.
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$url = preg_replace('/_small(\..*?)$/', '$1', $url);
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if (!common_valid_http_url($url)) {
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throw new ServerException(sprintf(_m("Invalid avatar URL %s."), $url));
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}
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// @fixme this should be better encapsulated
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// ripped from oauthstore.php (for old OMB client)
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$temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
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if (!copy($url, $temp_filename)) {
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throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
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}
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$id = $dest->id;
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// @fixme should we be using different ids?
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$imagefile = new ImageFile($id, $temp_filename);
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$filename = Avatar::filename($id,
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image_type_to_extension($imagefile->type),
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null,
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common_timestamp());
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rename($temp_filename, Avatar::path($filename));
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// @fixme hardcoded chmod is lame, but seems to be necessary to
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// keep from accidentally saving images from command-line (queues)
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// that can't be read from web server, which causes hard-to-notice
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// problems later on:
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//
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// http://status.net/open-source/issues/2663
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chmod(Avatar::path($filename), 0644);
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$dest->setOriginal($filename);
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}
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/**
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* Fetch an attachment from Yammer and save it into our system.
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* Unlike avatars, the attachment URLs are guarded by authentication,
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* so we need to run the HTTP hit through our OAuth API client.
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*
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* @param string $url
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* @param User $user
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* @return MediaFile
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*
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* @throws Exception on low-level network or HTTP error
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*/
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private function saveAttachment($url, User $user)
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{
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// Fetch the attachment...
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// WARNING: file must fit in memory here :(
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$body = $this->client->fetchUrl($url);
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// Save to a temporary file and shove it into our file-attachment space...
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$temp = tmpfile();
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fwrite($temp, $body);
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try {
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$upload = MediaFile::fromFileHandle($temp, $user);
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fclose($temp);
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return $upload;
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} catch (Exception $e) {
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fclose($temp);
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throw $e;
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}
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}
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}
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