"profile locator/address" is now called "Identity Address" to reduce confusion

[friendica.git] / mod / photo.php

diff --git a/mod/photo.php b/mod/photo.php
index bd0e415bfaa36f6fd4a26053e80e25455318d214..2f8d180fdb9c60c1824bb84858d3068515f0ecda 100644 (file)
--- a/mod/photo.php
+++ b/mod/photo.php
@@ -2,24 +2,140 @@
 
 function photo_init(&$a) {
 
-       if($a->argc != 2) {
-               killme();
+       switch($a->argc) {
+               case 3:
+                       $person = $a->argv[2];
+                       $type = $a->argv[1];
+                       break;
+               case 2:
+                       $photo = $a->argv[1];
+                       break;
+               case 1:
+               default:
+                       killme();
+                       // NOTREACHED
        }
-       $resolution = 0;
-       $photo = $a->argv[1];
-       $photo = str_replace('.jpg','',$photo);
-       if(substr($photo,-2,1) == '-') {
-               $resolution = intval(substr($photo,-1,1));
-               $photo = substr($photo,0,-2);
+
+       $default = 'images/default-profile.jpg';
+
+       if(isset($type)) {
+               switch($type) {
+
+                       case 'profile':
+                               $resolution = 4;
+                               break;
+                       case 'micro':
+                               $resolution = 6;
+                               $default = 'images/default-profile-mm.jpg';
+                               break;
+                       case 'avatar':
+                       default:
+                               $resolution = 5;
+                               $default = 'images/default-profile-sm.jpg';
+                               break;
+               }
+
+               $uid = str_replace('.jpg', '', $person);
+
+               $r = q("SELECT * FROM `photo` WHERE `scale` = %d AND `uid` = %d AND `profile` = 1 LIMIT 1",
+                       intval($resolution),
+                       intval($uid)
+               );
+               if(count($r)) {
+                       $data = $r[0]['data'];
+               }
+               if(! isset($data)) {
+                       $data = file_get_contents($default);
+               }
+       }
+       else {
+
+               $resolution = 0;
+               $photo = str_replace('.jpg','',$photo);
+       
+               if(substr($photo,-2,1) == '-') {
+                       $resolution = intval(substr($photo,-1,1));
+                       $photo = substr($photo,0,-2);
+               }
+
+               $r = q("SELECT `uid` FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d LIMIT 1",
+                       dbesc($photo),
+                       intval($resolution)
+               );
+               if(count($r)) {
+                       
+                       $owner = $r[0]['uid'];
+
+                       $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid` = '' AND `deny_gid` = '' ";
+
+                       if(local_user() && ($owner == $_SESSION['uid'])) {
+
+                               // Owner can always see his/her photos
+                               $sql_extra = ''; 
+
+                       }
+                       elseif(remote_user()) {
+
+                               // authenticated visitor - here lie dragons
+
+                               $groups = init_groups_visitor($_SESSION['visitor_id']);
+                               $gs = '<<>>'; // should be impossible to match
+                               if(count($groups)) {
+                                       foreach($groups as $g)
+                                               $gs .= '|<' . intval($g) . '>';
+                               } 
+
+                               $sql_extra = sprintf(
+                                       " AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' ) 
+                                         AND ( `deny_cid`  = '' OR  NOT `deny_cid` REGEXP '<%d>' ) 
+                                         AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
+                                         AND ( `deny_gid`  = '' OR NOT `deny_gid` REGEXP '%s') ",
+
+                                       intval($_SESSION['visitor_id']),
+                                       intval($_SESSION['visitor_id']),
+                                       dbesc($gs),
+                                       dbesc($gs)
+                               );
+                       }
+
+                       // Now we'll see if we can access the photo
+
+                       $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d $sql_extra LIMIT 1",
+                               dbesc($photo),
+                               intval($resolution)
+                       );
+
+                       if(count($r)) {
+                               $data = $r[0]['data'];
+                       }
+                       else {
+
+                               // Does the picture exist? It may be a remote person with no credentials,
+                               // but who should otherwise be able to view it. Show a default image to let 
+                               // them know permissions was denied. It may be possible to view the image 
+                               // through an authenticated profile visit.
+                               // There won't be many complete unauthorised people seeing this because
+                               // they won't have the photo link, so there's a reasonable chance that the person
+                               // might be able to obtain permission to view it.
+ 
+                               $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d LIMIT 1",
+                                       dbesc($photo),
+                                       intval($resolution)
+                               );
+                               if(count($r)) {
+                                       $data = file_get_contents('images/nosign.jpg');
+                               }
+                       }
+               }
        }
-       $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s'
-               AND `scale` = %d LIMIT 1",
-               dbesc($photo),
-               intval($resolution));
-       if($r === NULL || (! count($r))) {
+
+       if(! isset($data)) {
                killme();
+               // NOTREACHED
        }
-        header("Content-type: image/jpeg");
-        echo $r[0]['data'];
 
+       header("Content-type: image/jpeg");
+       echo $data;
+       killme();
+       // NOTREACHED
 }
\ No newline at end of file