add oembed provider for photos

2 files changed, 95 insertions, 0 deletions

diff --git a/mod/oep.php b/mod/oep.php
new file mode 100644
index 000000000..d0f4bd193
--- /dev/null
+++ b/mod/oep.php
@@ -0,0 +1,93 @@
+<?php
+
+// oembed provider
+
+
+
+function oep_init(&$a) {
+
+
+
+	$url = $_REQUEST['url'];
+	if(! $url)
+		http_status_exit(404, 'Not found');
+
+	$maxwidth  = $_REQUEST['maxwidth'];
+	$maxheight = $_REQUEST['maxheight'];
+	$format = $_REQUEST['format'];
+	if($format && $format !== 'json')
+		http_status_exit(501, 'Not implemented');
+
+	if(fnmatch('*/photos/*/album/*',$url))
+		$arr = oep_album_reply($_REQUEST);
+	elseif(fnmatch('*/photos/*',$url))
+		$arr = oep_photo_reply($_REQUEST);
+
+
+	if($arr) {
+		header('Content-Type: application/json+oembed');
+		echo json_encode($arr);
+		killme();
+	}
+
+	http_status_exit(404,'Not found');
+
+}
+
+
+function oep_album_reply() {
+
+}
+
+function oep_photo_reply($args) {
+
+	$ret = array();
+	$url = $args['url'];
+	$maxwidth  = intval($args['maxwidth']);
+	$maxheight = intval($args['maxheight']);
+
+	if(preg_match('|//(.*?)/(.*?)/(.*?)/image/|',$url,$matches)) {
+		$chn = $matches[3];
+		$res = basename($url);
+	}
+
+	if(! ($chn && $res))
+		return;
+	$c = q("select * from channel where channel_address = '%s' limit 1",
+		dbesc($chn)
+	);
+
+	if(! $c)
+		return;
+
+	$sql_extra = permissions_sql($c[0]['channel_id']);
+
+
+	$r = q("select height, width, scale, resource_id from photo where uid = %d and resource_id = '%s' $sql_extra order by scale asc",
+		intval($c[0]['channel_id']),
+		dbesc($res)
+	);
+
+	if($r) {
+		foreach($r as $rr) {
+			$foundres = false;
+			if($maxheight && $rr['height'] > $maxheight)
+				continue;
+			if($maxwidth && $rr['width'] > $maxwidth)
+				continue;
+			$foundres = true;			
+			break;
+		}
+
+		if($foundres) {
+			$ret['type'] = 'link';
+			$ret['thumbnail_url'] = z_root() . '/photo/' . '/' . $rr['resource_id'] . '-' . $rr['scale'];
+			$ret['thumbnail_width'] = $rr['width'];
+			$ret['thumbnail_height'] = $rr['height'];
+		}
+			
+
+	}
+	return $ret;
+
+}
\ No newline at end of file
diff --git a/mod/photos.php b/mod/photos.php
index f1b7aceed..d187e1d45 100644
--- a/mod/photos.php
+++ b/mod/photos.php
@@ -804,6 +804,8 @@ function photos_content(&$a) {
 
 	if($datatype === 'image') {
 
+		$a->page['htmlhead'] .= "\r\n" . '<link rel="alternate" type="application/json+oembed" href="' . z_root() . '/oep?f=&url=' . urlencode(z_root() . '/' . $a->cmd) . '" title="oembed" />' . "\r\n";
+
 		// fetch image, item containing image, then comments
 
 		$ph = q("SELECT id,aid,uid,xchan,resource_id,created,edited,title,`description`,album,filename,`type`,height,width,`size`,scale,photo_usage,is_nsfw,allow_cid,allow_gid,deny_cid,deny_gid FROM `photo` WHERE `uid` = %d AND `resource_id` = '%s'