ee91cf95 |
1 | <?php |
2 | /** |
3 | * Picasa Portfolio Plugin |
4 | * |
5 | * @author Dan Poltawski <talktodan@gmail.com> |
6 | * @version $Id$ |
7 | * @license http://www.gnu.org/copyleft/gpl.html GNU Public License |
8 | */ |
9 | |
10 | require_once($CFG->libdir.'/googleapi.php'); |
11 | |
12 | class portfolio_plugin_picasa extends portfolio_plugin_push_base { |
13 | private $sessionkey; |
14 | |
15 | public static function supported_formats() { |
16 | return array(PORTFOLIO_FORMAT_IMAGE, PORTFOLIO_FORMAT_VIDEO); |
17 | } |
18 | |
19 | public static function get_name() { |
20 | return get_string('pluginname', 'portfolio_picasa'); |
21 | } |
22 | |
23 | public function prepare_package() { |
24 | // we send the files as they are, no prep required |
25 | return true; |
26 | } |
27 | |
28 | public function get_continue_url(){ |
29 | return 'http://picasaweb.google.com/'; |
30 | } |
31 | |
32 | public function expected_time($callertime) { |
33 | return $callertime; |
34 | } |
35 | |
36 | public function send_package() { |
37 | if(!$this->sessionkey){ |
38 | throw new portfolio_plugin_exception('noauthtoken', 'portfolio_picasa'); |
39 | } |
40 | |
41 | $picasa = new google_picasa(new google_authsub($this->sessionkey)); |
42 | |
43 | foreach ($this->exporter->get_tempfiles() as $file) { |
44 | |
45 | if(!$picasa->send_file($file)){ |
46 | throw new portfolio_plugin_exception('sendfailed', 'portfolio_picasa', $file->get_filename()); |
47 | } |
48 | } |
49 | } |
50 | |
51 | public function steal_control($stage) { |
52 | global $CFG; |
53 | if ($stage != PORTFOLIO_STAGE_CONFIG) { |
54 | return false; |
55 | } |
56 | |
57 | $sesskey = google_picasa::get_sesskey($this->get('user')->id); |
58 | |
59 | if($sesskey){ |
60 | try{ |
61 | $gauth = new google_authsub($sesskey); |
62 | $this->sessionkey = $sesskey; |
63 | return false; |
64 | }catch(Exception $e){ |
65 | // sesskey is not valid, delete store and re-auth |
66 | google_picasa::delete_sesskey($this->get('user')->id); |
67 | } |
68 | } |
69 | |
70 | return google_authsub::login_url($CFG->wwwroot.'/portfolio/add.php?postcontrol=1', google_picasa::REALM); |
71 | } |
72 | |
73 | public function post_control($stage, $params) { |
74 | if ($stage != PORTFOLIO_STAGE_CONFIG) { |
75 | return; |
76 | } |
77 | |
78 | if(!array_key_exists('token', $params)){ |
79 | throw new portfolio_plugin_exception('noauthtoken', 'portfolio_picasa'); |
80 | } |
81 | |
82 | // we now have our auth token, get a session token.. |
83 | $gauth = new google_authsub(false, $params['token']); |
84 | |
85 | $this->sessionkey = $gauth->get_sessiontoken(); |
86 | |
87 | google_picasa::set_sesskey($this->sessionkey, $this->get('user')->id); |
88 | } |
89 | |
90 | } |
91 | |
92 | /** |
93 | * Registers to the user_deleted event to revoke any |
94 | * subauth tokens we have from them |
95 | * |
96 | * @param $user user object |
97 | * @return boolean true in all cases as its only minor cleanup |
98 | */ |
99 | function portfolio_picasa_user_deleted($user){ |
100 | // it is only by luck that the user prefstill exists now? |
101 | // We probably need a pre-delete event? |
102 | if($sesskey = google_picasa::get_sesskey($user->id)){ |
103 | try{ |
104 | $gauth = new google_authsub($sesskey); |
105 | |
106 | $gauth->revoke_session_token(); |
107 | }catch(Exception $e){ |
108 | // we don't care that much about success- just being good |
109 | // google api citzens |
110 | return true; |
111 | } |
112 | } |
113 | |
114 | return true; |
115 | } |