]> git.mxchange.org Git - friendica.git/blob - include/ostatus.php
Merge pull request #3284 from annando/issue-3278
[friendica.git] / include / ostatus.php
1 <?php
2 /**
3  * @file include/ostatus.php
4  */
5
6 require_once("include/Contact.php");
7 require_once("include/threads.php");
8 require_once("include/html2bbcode.php");
9 require_once("include/bbcode.php");
10 require_once("include/items.php");
11 require_once("mod/share.php");
12 require_once("include/enotify.php");
13 require_once("include/socgraph.php");
14 require_once("include/Photo.php");
15 require_once("include/Scrape.php");
16 require_once("include/follow.php");
17 require_once("include/api.php");
18 require_once("mod/proxy.php");
19 require_once("include/xml.php");
20
21 /**
22  * @brief This class contain functions for the OStatus protocol
23  *
24  */
25 class ostatus {
26         const OSTATUS_DEFAULT_POLL_INTERVAL = 30; // given in minutes
27         const OSTATUS_DEFAULT_POLL_TIMEFRAME = 1440; // given in minutes
28         const OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS = 14400; // given in minutes
29
30         /**
31          * @brief Mix two paths together to possibly fix missing parts
32          *
33          * @param string $avatar Path to the avatar
34          * @param string $base Another path that is hopefully complete
35          *
36          * @return string fixed avatar path
37          */
38         public static function fix_avatar($avatar, $base) {
39                 $base_parts = parse_url($base);
40
41                 // Remove all parts that could create a problem
42                 unset($base_parts['path']);
43                 unset($base_parts['query']);
44                 unset($base_parts['fragment']);
45
46                 $avatar_parts = parse_url($avatar);
47
48                 // Now we mix them
49                 $parts = array_merge($base_parts, $avatar_parts);
50
51                 // And put them together again
52                 $scheme   = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
53                 $host     = isset($parts['host']) ? $parts['host'] : '';
54                 $port     = isset($parts['port']) ? ':' . $parts['port'] : '';
55                 $path     = isset($parts['path']) ? $parts['path'] : '';
56                 $query    = isset($parts['query']) ? '?' . $parts['query'] : '';
57                 $fragment = isset($parts['fragment']) ? '#' . $parts['fragment'] : '';
58
59                 $fixed = $scheme.$host.$port.$path.$query.$fragment;
60
61                 logger('Base: '.$base.' - Avatar: '.$avatar.' - Fixed: '.$fixed, LOGGER_DATA);
62
63                 return $fixed;
64         }
65
66         /**
67          * @brief Fetches author data
68          *
69          * @param object $xpath The xpath object
70          * @param object $context The xml context of the author detals
71          * @param array $importer user record of the importing user
72          * @param array $contact Called by reference, will contain the fetched contact
73          * @param bool $onlyfetch Only fetch the header without updating the contact entries
74          *
75          * @return array Array of author related entries for the item
76          */
77         private function fetchauthor($xpath, $context, $importer, &$contact, $onlyfetch) {
78
79                 $author = array();
80                 $author["author-link"] = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
81                 $author["author-name"] = $xpath->evaluate('atom:author/atom:name/text()', $context)->item(0)->nodeValue;
82
83                 $aliaslink = $author["author-link"];
84
85                 $alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
86                 if (is_object($alternate))
87                         foreach($alternate AS $attributes)
88                                 if ($attributes->name == "href")
89                                         $author["author-link"] = $attributes->textContent;
90
91                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` IN ('%s', '%s') AND `network` != '%s'",
92                         intval($importer["uid"]), dbesc(normalise_link($author["author-link"])),
93                         dbesc(normalise_link($aliaslink)), dbesc(NETWORK_STATUSNET));
94                 if ($r) {
95                         $contact = $r[0];
96                         $author["contact-id"] = $r[0]["id"];
97                 } else
98                         $author["contact-id"] = $contact["id"];
99
100                 $avatarlist = array();
101                 $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
102                 foreach($avatars AS $avatar) {
103                         $href = "";
104                         $width = 0;
105                         foreach($avatar->attributes AS $attributes) {
106                                 if ($attributes->name == "href")
107                                         $href = $attributes->textContent;
108                                 if ($attributes->name == "width")
109                                         $width = $attributes->textContent;
110                         }
111                         if (($width > 0) AND ($href != ""))
112                                 $avatarlist[$width] = $href;
113                 }
114                 if (count($avatarlist) > 0) {
115                         krsort($avatarlist);
116                         $author["author-avatar"] = self::fix_avatar(current($avatarlist), $author["author-link"]);
117                 }
118
119                 $displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
120                 if ($displayname != "")
121                         $author["author-name"] = $displayname;
122
123                 $author["owner-name"] = $author["author-name"];
124                 $author["owner-link"] = $author["author-link"];
125                 $author["owner-avatar"] = $author["author-avatar"];
126
127                 // Only update the contacts if it is an OStatus contact
128                 if ($r AND !$onlyfetch AND ($contact["network"] == NETWORK_OSTATUS)) {
129
130                         // Update contact data
131
132                         // This query doesn't seem to work
133                         // $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
134                         // if ($value != "")
135                         //      $contact["notify"] = $value;
136
137                         // This query doesn't seem to work as well - I hate these queries
138                         // $value = $xpath->query("atom:link[@rel='self' and @type='application/atom+xml']", $context)->item(0)->nodeValue;
139                         // if ($value != "")
140                         //      $contact["poll"] = $value;
141
142                         $value = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
143                         if ($value != "")
144                                 $contact["alias"] = $value;
145
146                         $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
147                         if ($value != "")
148                                 $contact["name"] = $value;
149
150                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
151                         if ($value != "")
152                                 $contact["nick"] = $value;
153
154                         $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
155                         if ($value != "")
156                                 $contact["about"] = html2bbcode($value);
157
158                         $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
159                         if ($value != "")
160                                 $contact["location"] = $value;
161
162                         if (($contact["name"] != $r[0]["name"]) OR ($contact["nick"] != $r[0]["nick"]) OR ($contact["about"] != $r[0]["about"]) OR
163                                 ($contact["alias"] != $r[0]["alias"]) OR ($contact["location"] != $r[0]["location"])) {
164
165                                 logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
166
167                                 q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `alias` = '%s', `about` = '%s', `location` = '%s', `name-date` = '%s' WHERE `id` = %d",
168                                         dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["alias"]),
169                                         dbesc($contact["about"]), dbesc($contact["location"]),
170                                         dbesc(datetime_convert()), intval($contact["id"]));
171                         }
172
173                         if (isset($author["author-avatar"]) AND ($author["author-avatar"] != $r[0]['avatar'])) {
174                                 logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
175
176                                 update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
177                         }
178
179                         // Ensure that we are having this contact (with uid=0)
180                         $cid = get_contact($author["author-link"], 0);
181
182                         if ($cid) {
183                                 // Update it with the current values
184                                 q("UPDATE `contact` SET `url` = '%s', `name` = '%s', `nick` = '%s', `alias` = '%s',
185                                                 `about` = '%s', `location` = '%s',
186                                                 `success_update` = '%s', `last-update` = '%s'
187                                         WHERE `id` = %d",
188                                         dbesc($author["author-link"]), dbesc($contact["name"]), dbesc($contact["nick"]),
189                                         dbesc($contact["alias"]), dbesc($contact["about"]), dbesc($contact["location"]),
190                                         dbesc(datetime_convert()), dbesc(datetime_convert()), intval($cid));
191
192                                 // Update the avatar
193                                 update_contact_avatar($author["author-avatar"], 0, $cid);
194                         }
195
196                         $contact["generation"] = 2;
197                         $contact["hide"] = false; // OStatus contacts are never hidden
198                         $contact["photo"] = $author["author-avatar"];
199                         $gcid = update_gcontact($contact);
200
201                         link_gcontact($gcid, $contact["uid"], $contact["id"]);
202                 }
203
204                 return($author);
205         }
206
207         /**
208          * @brief Fetches author data from a given XML string
209          *
210          * @param string $xml The XML
211          * @param array $importer user record of the importing user
212          *
213          * @return array Array of author related entries for the item
214          */
215         public static function salmon_author($xml, $importer) {
216
217                 if ($xml == "")
218                         return;
219
220                 $doc = new DOMDocument();
221                 @$doc->loadXML($xml);
222
223                 $xpath = new DomXPath($doc);
224                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
225                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
226                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
227                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
228                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
229                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
230                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
231                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
232
233                 $entries = $xpath->query('/atom:entry');
234
235                 foreach ($entries AS $entry) {
236                         // fetch the author
237                         $author = self::fetchauthor($xpath, $entry, $importer, $contact, true);
238                         return $author;
239                 }
240         }
241
242         /**
243          * @brief Read attributes from element
244          *
245          * @param object $element Element object
246          *
247          * @return array attributes
248          */
249         private static function read_attributes($element) {
250                 $attribute = array();
251
252                 foreach ($element->attributes AS $attributes) {
253                         $attribute[$attributes->name] = $attributes->textContent;
254                 }
255
256                 return $attribute;
257         }
258
259         /**
260          * @brief Imports an XML string containing OStatus elements
261          *
262          * @param string $xml The XML
263          * @param array $importer user record of the importing user
264          * @param $contact
265          * @param array $hub Called by reference, returns the fetched hub data
266          */
267         public static function import($xml,$importer,&$contact, &$hub) {
268                 /// @todo this function is too long. It has to be split in many parts
269
270                 logger("Import OStatus message", LOGGER_DEBUG);
271
272                 if ($xml == "") {
273                         return;
274                 }
275                 //$tempfile = tempnam(get_temppath(), "import");
276                 //file_put_contents($tempfile, $xml);
277
278                 $doc = new DOMDocument();
279                 @$doc->loadXML($xml);
280
281                 $xpath = new DomXPath($doc);
282                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
283                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
284                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
285                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
286                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
287                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
288                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
289                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
290
291                 $gub = "";
292                 $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
293                 if (is_object($hub_attributes)) {
294                         foreach ($hub_attributes AS $hub_attribute) {
295                                 if ($hub_attribute->name == "href") {
296                                         $hub = $hub_attribute->textContent;
297                                         logger("Found hub ".$hub, LOGGER_DEBUG);
298                                 }
299                         }
300                 }
301                 $header = array();
302                 $header["uid"] = $importer["uid"];
303                 $header["network"] = NETWORK_OSTATUS;
304                 $header["type"] = "remote";
305                 $header["wall"] = 0;
306                 $header["origin"] = 0;
307                 $header["gravity"] = GRAVITY_PARENT;
308
309                 // it could either be a received post or a post we fetched by ourselves
310                 // depending on that, the first node is different
311                 $first_child = $doc->firstChild->tagName;
312
313                 if ($first_child == "feed") {
314                         $entries = $xpath->query('/atom:feed/atom:entry');
315                 } else {
316                         $entries = $xpath->query('/atom:entry');
317                 }
318                 $conversation = "";
319                 $conversationlist = array();
320                 $item_id = 0;
321
322                 // Reverse the order of the entries
323                 $entrylist = array();
324
325                 foreach ($entries AS $entry) {
326                         $entrylist[] = $entry;
327                 }
328                 foreach (array_reverse($entrylist) AS $entry) {
329
330                         $mention = false;
331
332                         // fetch the author
333                         if ($first_child == "feed") {
334                                 $author = self::fetchauthor($xpath, $doc->firstChild, $importer, $contact, false);
335                         } else {
336                                 $author = self::fetchauthor($xpath, $entry, $importer, $contact, false);
337                         }
338                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
339                         if ($value != "") {
340                                 $nickname = $value;
341                         } else {
342                                 $nickname = $author["author-name"];
343                         }
344                         $item = array_merge($header, $author);
345
346                         // Now get the item
347                         $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
348
349                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
350                                 intval($importer["uid"]), dbesc($item["uri"]));
351                         if (dbm::is_result($r)) {
352                                 logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
353                                 continue;
354                         }
355
356                         $item["body"] = add_page_info_to_body(html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue));
357                         $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
358
359                         if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) OR ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
360                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
361                                 $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
362                         } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION) {
363                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
364                         }
365                         $item["object"] = $xml;
366                         $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
367
368                         /// @TODO
369                         /// Delete a message
370                         if ($item["verb"] == "qvitter-delete-notice") {
371                                 // ignore "Delete" messages (by now)
372                                 logger("Ignore delete message ".print_r($item, true));
373                                 continue;
374                         }
375
376                         if ($item["verb"] == ACTIVITY_JOIN) {
377                                 // ignore "Join" messages
378                                 logger("Ignore join message ".print_r($item, true));
379                                 continue;
380                         }
381
382                         if ($item["verb"] == ACTIVITY_FOLLOW) {
383                                 new_follower($importer, $contact, $item, $nickname);
384                                 continue;
385                         }
386
387                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
388                                 lose_follower($importer, $contact, $item, $dummy);
389                                 continue;
390                         }
391
392                         if ($item["verb"] == ACTIVITY_FAVORITE) {
393                                 $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
394                                 logger("Favorite ".$orig_uri." ".print_r($item, true));
395
396                                 $item["verb"] = ACTIVITY_LIKE;
397                                 $item["parent-uri"] = $orig_uri;
398                                 $item["gravity"] = GRAVITY_LIKE;
399                         }
400
401                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
402                                 // Ignore "Unfavorite" message
403                                 logger("Ignore unfavorite message ".print_r($item, true));
404                                 continue;
405                         }
406
407                         // http://activitystrea.ms/schema/1.0/rsvp-yes
408                         if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE))) {
409                                 logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
410                         }
411                         $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
412                         $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
413                         $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
414
415                         $related = "";
416
417                         $inreplyto = $xpath->query('thr:in-reply-to', $entry);
418                         if (is_object($inreplyto->item(0))) {
419                                 foreach ($inreplyto->item(0)->attributes AS $attributes) {
420                                         if ($attributes->name == "ref") {
421                                                 $item["parent-uri"] = $attributes->textContent;
422                                         }
423                                         if ($attributes->name == "href") {
424                                                 $related = $attributes->textContent;
425                                         }
426                                 }
427                         }
428
429                         $georsspoint = $xpath->query('georss:point', $entry);
430                         if ($georsspoint) {
431                                 $item["coord"] = $georsspoint->item(0)->nodeValue;
432                         }
433                         $categories = $xpath->query('atom:category', $entry);
434                         if ($categories) {
435                                 foreach ($categories AS $category) {
436                                         foreach ($category->attributes AS $attributes) {
437                                                 if ($attributes->name == "term") {
438                                                         $term = $attributes->textContent;
439                                                         if(strlen($item["tag"])) {
440                                                                 $item["tag"] .= ',';
441                                                         }
442                                                         $item["tag"] .= "#[url=".App::get_baseurl()."/search?tag=".$term."]".$term."[/url]";
443                                                 }
444                                         }
445                                 }
446                         }
447
448                         $self = "";
449                         $enclosure = "";
450
451                         $links = $xpath->query('atom:link', $entry);
452                         if ($links) {
453                                 foreach ($links AS $link) {
454                                         $attribute = self::read_attributes($link);
455
456                                         if (($attribute['rel'] != "") AND ($attribute['href'] != "")) {
457                                                 switch ($attribute['rel']) {
458                                                         case "alternate":
459                                                                 $item["plink"] = $attribute['href'];
460                                                                 if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) OR
461                                                                         ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
462                                                                         $item["body"] .= add_page_info($attribute['href']);
463                                                                 }
464                                                                 break;
465                                                         case "ostatus:conversation":
466                                                                 $conversation = $attribute['href'];
467                                                                 break;
468                                                         case "enclosure":
469                                                                 $enclosure = $attribute['href'];
470                                                                 if (strlen($item["attach"])) {
471                                                                         $item["attach"] .= ',';
472                                                                 }
473                                                                 if (!isset($attribute['length'])) {
474                                                                         $attribute['length'] = "0";
475                                                                 }
476                                                                 $item["attach"] .= '[attach]href="'.$attribute['href'].'" length="'.$attribute['length'].'" type="'.$attribute['type'].'" title="'.$attribute['title'].'"[/attach]';
477                                                                 break;
478                                                         case "related":
479                                                                 if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
480                                                                         if (!isset($item["parent-uri"])) {
481                                                                                 $item["parent-uri"] = $attribute['href'];
482                                                                         }
483                                                                         if ($related == "") {
484                                                                                 $related = $attribute['href'];
485                                                                         }
486                                                                 } else {
487                                                                         $item["body"] .= add_page_info($attribute['href']);
488                                                                 }
489                                                                 break;
490                                                         case "self":
491                                                                 $self = $attribute['href'];
492                                                                 break;
493                                                         case "mentioned":
494                                                                 // Notification check
495                                                                 if ($importer["nurl"] == normalise_link($attribute['href'])) {
496                                                                         $mention = true;
497                                                                 }
498                                                                 break;
499                                                 }
500                                         }
501                                 }
502                         }
503
504                         $local_id = "";
505                         $repeat_of = "";
506
507                         $notice_info = $xpath->query('statusnet:notice_info', $entry);
508                         if ($notice_info AND ($notice_info->length > 0)) {
509                                 foreach ($notice_info->item(0)->attributes AS $attributes) {
510                                         if ($attributes->name == "source") {
511                                                 $item["app"] = strip_tags($attributes->textContent);
512                                         }
513                                         if ($attributes->name == "local_id") {
514                                                 $local_id = $attributes->textContent;
515                                         }
516                                         if ($attributes->name == "repeat_of") {
517                                                 $repeat_of = $attributes->textContent;
518                                         }
519                                 }
520                         }
521
522                         // Is it a repeated post?
523                         if (($repeat_of != "") OR ($item["verb"] == ACTIVITY_SHARE)) {
524                                 $activityobjects = $xpath->query('activity:object', $entry)->item(0);
525
526                                 if (is_object($activityobjects)) {
527
528                                         $orig_uri = $xpath->query("activity:object/atom:id", $activityobjects)->item(0)->nodeValue;
529                                         if (!isset($orig_uri)) {
530                                                 $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
531                                         }
532                                         $orig_links = $xpath->query("activity:object/atom:link[@rel='alternate']", $activityobjects);
533                                         if ($orig_links AND ($orig_links->length > 0)) {
534                                                 foreach ($orig_links->item(0)->attributes AS $attributes) {
535                                                         if ($attributes->name == "href") {
536                                                                 $orig_link = $attributes->textContent;
537                                                         }
538                                                 }
539                                         }
540                                         if (!isset($orig_link)) {
541                                                 $orig_link = $xpath->query("atom:link[@rel='alternate']", $activityobjects)->item(0)->nodeValue;
542                                         }
543                                         if (!isset($orig_link)) {
544                                                 $orig_link =  self::convert_href($orig_uri);
545                                         }
546                                         $orig_body = $xpath->query('activity:object/atom:content/text()', $activityobjects)->item(0)->nodeValue;
547                                         if (!isset($orig_body)) {
548                                                 $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
549                                         }
550                                         $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
551                                         $orig_edited = $xpath->query('atom:updated/text()', $activityobjects)->item(0)->nodeValue;
552
553                                         $orig_contact = $contact;
554                                         $orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
555
556                                         $item["author-name"] = $orig_author["author-name"];
557                                         $item["author-link"] = $orig_author["author-link"];
558                                         $item["author-avatar"] = $orig_author["author-avatar"];
559
560                                         $item["body"] = add_page_info_to_body(html2bbcode($orig_body));
561                                         $item["created"] = $orig_created;
562                                         $item["edited"] = $orig_edited;
563
564                                         $item["uri"] = $orig_uri;
565
566                                         if (!isset($item["plink"])) {
567                                                 $item["plink"] = $orig_link;
568                                         }
569
570                                         $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
571
572                                         $item["object-type"] = $xpath->query('activity:object/activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
573                                         if (!isset($item["object-type"])) {
574                                                 $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
575                                         }
576
577                                         $enclosures = $xpath->query("atom:link[@rel='alternate']", $activityobjects);
578                                         if ($enclosures) {
579                                                 foreach ($enclosures AS $link) {
580                                                         $attribute = self::read_attributes($link);
581                                                         if ($href != "") {
582                                                                 $enclosure = $attribute['href'];
583                                                                 if (strlen($item["attach"])) {
584                                                                         $item["attach"] .= ',';
585                                                                 }
586                                                                 if (!isset($attribute['length'])) {
587                                                                         $attribute['length'] = "0";
588                                                                 }
589                                                                 $item["attach"] .= '[attach]href="'.$attribute['href'].'" length="'.$attribute['length'].'" type="'.$attribute['type'].'" title="'.$attribute['title'].'"[/attach]';
590                                                         }
591                                                 }
592                                         }
593                                 }
594                         }
595
596                         //if ($enclosure != "")
597                         //      $item["body"] .= add_page_info($enclosure);
598
599                         if (isset($item["parent-uri"])) {
600                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
601                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
602
603                                 // Only fetch missing stuff if it is a comment or reshare.
604                                 if (in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_SHARE)) AND
605                                         !dbm::is_result($r) AND ($related != "")) {
606                                         $reply_path = str_replace("/notice/", "/api/statuses/show/", $related).".atom";
607
608                                         if ($reply_path != $related) {
609                                                 logger("Fetching related items for user ".$importer["uid"]." from ".$reply_path, LOGGER_DEBUG);
610                                                 $reply_xml = fetch_url($reply_path);
611
612                                                 $reply_contact = $contact;
613                                                 self::import($reply_xml,$importer,$reply_contact, $reply_hub);
614
615                                                 // After the import try to fetch the parent item again
616                                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
617                                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
618                                         }
619                                 }
620                                 if (dbm::is_result($r)) {
621                                         $item["type"] = 'remote-comment';
622                                         $item["gravity"] = GRAVITY_COMMENT;
623                                 }
624                         } else {
625                                 $item["parent-uri"] = $item["uri"];
626                         }
627                         $item_id = self::completion($conversation, $importer["uid"], $item, $self);
628
629                         if (!$item_id) {
630                                 logger("Error storing item", LOGGER_DEBUG);
631                                 continue;
632                         }
633
634                         logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
635                 }
636         }
637
638         /**
639          * @brief Create an url out of an uri
640          *
641          * @param string $href URI in the format "parameter1:parameter1:..."
642          *
643          * @return string URL in the format http(s)://....
644          */
645         public static function convert_href($href) {
646                 $elements = explode(":",$href);
647
648                 if ((count($elements) <= 2) OR ($elements[0] != "tag"))
649                         return $href;
650
651                 $server = explode(",", $elements[1]);
652                 $conversation = explode("=", $elements[2]);
653
654                 if ((count($elements) == 4) AND ($elements[2] == "post"))
655                         return "http://".$server[0]."/notice/".$elements[3];
656
657                 if ((count($conversation) != 2) OR ($conversation[1] ==""))
658                         return $href;
659
660                 if ($elements[3] == "objectType=thread")
661                         return "http://".$server[0]."/conversation/".$conversation[1];
662                 else
663                         return "http://".$server[0]."/notice/".$conversation[1];
664
665                 return $href;
666         }
667
668         /**
669          * @brief Checks if there are entries in conversations that aren't present on our side
670          *
671          * @param bool $mentions Fetch conversations where we are mentioned
672          * @param bool $override Override the interval setting
673          */
674         public static function check_conversations($mentions = false, $override = false) {
675                 $last = get_config('system','ostatus_last_poll');
676
677                 $poll_interval = intval(get_config('system','ostatus_poll_interval'));
678                 if (!$poll_interval) {
679                         $poll_interval = self::OSTATUS_DEFAULT_POLL_INTERVAL;
680                 }
681
682                 // Don't poll if the interval is set negative
683                 if (($poll_interval < 0) AND !$override) {
684                         return;
685                 }
686
687                 if (!$mentions) {
688                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
689                         if (!$poll_timeframe) {
690                                 $poll_timeframe = self::OSTATUS_DEFAULT_POLL_TIMEFRAME;
691                         }
692                 } else {
693                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
694                         if (!$poll_timeframe) {
695                                 $poll_timeframe = self::OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS;
696                         }
697                 }
698
699
700                 if ($last AND !$override) {
701                         $next = $last + ($poll_interval * 60);
702                         if ($next > time()) {
703                                 logger('poll interval not reached');
704                                 return;
705                         }
706                 }
707
708                 logger('cron_start');
709
710                 $start = date("Y-m-d H:i:s", time() - ($poll_timeframe * 60));
711
712                 if ($mentions) {
713                         $conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
714                                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
715                                                 WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
716                                                 GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
717                 } else {
718                         $conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
719                                                 WHERE `type` = 7 AND `term` > '%s'
720                                                 GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
721                 }
722
723                 foreach ($conversations AS $conversation) {
724                         self::completion($conversation['url'], $conversation['uid']);
725                 }
726
727                 logger('cron_end');
728
729                 set_config('system','ostatus_last_poll', time());
730         }
731
732         /**
733          * @brief Updates the gcontact table with actor data from the conversation
734          *
735          * @param object $actor The actor object that contains the contact data
736          */
737         private function conv_fetch_actor($actor) {
738
739                 // We set the generation to "3" since the data here is not as reliable as the data we get on other occasions
740                 $contact = array("network" => NETWORK_OSTATUS, "generation" => 3);
741
742                 if (isset($actor->url))
743                         $contact["url"] = $actor->url;
744
745                 if (isset($actor->displayName))
746                         $contact["name"] = $actor->displayName;
747
748                 if (isset($actor->portablecontacts_net->displayName))
749                         $contact["name"] = $actor->portablecontacts_net->displayName;
750
751                 if (isset($actor->portablecontacts_net->preferredUsername))
752                         $contact["nick"] = $actor->portablecontacts_net->preferredUsername;
753
754                 if (isset($actor->id))
755                         $contact["alias"] = $actor->id;
756
757                 if (isset($actor->summary))
758                         $contact["about"] = $actor->summary;
759
760                 if (isset($actor->portablecontacts_net->note))
761                         $contact["about"] = $actor->portablecontacts_net->note;
762
763                 if (isset($actor->portablecontacts_net->addresses->formatted))
764                         $contact["location"] = $actor->portablecontacts_net->addresses->formatted;
765
766
767                 if (isset($actor->image->url))
768                         $contact["photo"] = $actor->image->url;
769
770                 if (isset($actor->image->width))
771                         $avatarwidth = $actor->image->width;
772
773                 if (is_array($actor->status_net->avatarLinks))
774                         foreach ($actor->status_net->avatarLinks AS $avatar) {
775                                 if ($avatarsize < $avatar->width) {
776                                         $contact["photo"] = $avatar->url;
777                                         $avatarsize = $avatar->width;
778                                 }
779                         }
780
781                 $contact["hide"] = false; // OStatus contacts are never hidden
782                 update_gcontact($contact);
783         }
784
785         /**
786          * @brief Fetches the conversation url for a given item link or conversation id
787          *
788          * @param string $self The link to the posting
789          * @param string $conversation_id The conversation id
790          *
791          * @return string The conversation url
792          */
793         private function fetch_conversation($self, $conversation_id = "") {
794
795                 if ($conversation_id != "") {
796                         $elements = explode(":", $conversation_id);
797
798                         if ((count($elements) <= 2) OR ($elements[0] != "tag"))
799                                 return $conversation_id;
800                 }
801
802                 if ($self == "")
803                         return "";
804
805                 $json = str_replace(".atom", ".json", $self);
806
807                 $raw = fetch_url($json);
808                 if ($raw == "")
809                         return "";
810
811                 $data = json_decode($raw);
812                 if (!is_object($data))
813                         return "";
814
815                 $conversation_id = $data->statusnet_conversation_id;
816
817                 $pos = strpos($self, "/api/statuses/show/");
818                 $base_url = substr($self, 0, $pos);
819
820                 return $base_url."/conversation/".$conversation_id;
821         }
822
823         /**
824          * @brief Fetches actor details of a given actor and user id
825          *
826          * @param string $actor The actor url
827          * @param int $uid The user id
828          * @param int $contact_id The default contact-id
829          *
830          * @return array Array with actor details
831          */
832         private function get_actor_details($actor, $uid, $contact_id) {
833
834                 $details = array();
835
836                 $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
837                                         $uid, normalise_link($actor), NETWORK_STATUSNET);
838
839                 if (!$contact)
840                         $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `alias` IN ('%s', '%s') AND `network` != '%s'",
841                                         $uid, $actor, normalise_link($actor), NETWORK_STATUSNET);
842
843                 if ($contact) {
844                         logger("Found contact for url ".$actor, LOGGER_DEBUG);
845                         $details["contact_id"] = $contact[0]["id"];
846                         $details["network"] = $contact[0]["network"];
847
848                         $details["not_following"] = !in_array($contact[0]["rel"], array(CONTACT_IS_SHARING, CONTACT_IS_FRIEND));
849                 } else {
850                         logger("No contact found for user ".$uid." and url ".$actor, LOGGER_DEBUG);
851
852                         // Adding a global contact
853                         /// @TODO Use this data for the post
854                         $details["global_contact_id"] = get_contact($actor, 0);
855
856                         logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
857
858                         $details["contact_id"] = $contact_id;
859                         $details["network"] = NETWORK_OSTATUS;
860
861                         $details["not_following"] = true;
862                 }
863
864                 return $details;
865         }
866
867         /**
868          * @brief Stores an item and completes the thread
869          *
870          * @param string $conversation_url The URI of the conversation
871          * @param integer $uid The user id
872          * @param array $item Data of the item that is to be posted
873          *
874          * @return integer The item id of the posted item array
875          */
876         private function completion($conversation_url, $uid, $item = array(), $self = "") {
877
878                 /// @todo This function is totally ugly and has to be rewritten totally
879
880                 // Import all threads or only threads that were started by our followers?
881                 $all_threads = !get_config('system','ostatus_full_threads');
882
883                 $item_stored = -1;
884
885                 $conversation_url = self::fetch_conversation($self, $conversation_url);
886
887                 // If the thread shouldn't be completed then store the item and go away
888                 // Don't do a completion on liked content
889                 if (((intval(get_config('system','ostatus_poll_interval')) == -2) AND (count($item) > 0)) OR
890                         ($item["verb"] == ACTIVITY_LIKE) OR ($conversation_url == "")) {
891                         $item_stored = item_store($item, $all_threads);
892                         return $item_stored;
893                 }
894
895                 // Get the parent
896                 $parents = q("SELECT `item`.`id`, `item`.`parent`, `item`.`uri`, `item`.`contact-id`, `item`.`type`,
897                                 `item`.`verb`, `item`.`visible` FROM `term`
898                                 STRAIGHT_JOIN `item` AS `thritem` ON `thritem`.`parent` = `term`.`oid`
899                                 STRAIGHT_JOIN `item` ON `item`.`parent` = `thritem`.`parent`
900                                 WHERE `term`.`uid` = %d AND `term`.`otype` = %d AND `term`.`type` = %d AND `term`.`url` = '%s'",
901                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
902
903 /*              2016-10-23: The old query will be kept until we are sure that the query above is a good and fast replacement
904
905                 $parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
906                                 (SELECT `parent` FROM `item` WHERE `id` IN
907                                         (SELECT `oid` FROM `term` WHERE `uid` = %d AND `otype` = %d AND `type` = %d AND `url` = '%s'))",
908                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
909 */
910                 if ($parents)
911                         $parent = $parents[0];
912                 elseif (count($item) > 0) {
913                         $parent = $item;
914                         $parent["type"] = "remote";
915                         $parent["verb"] = ACTIVITY_POST;
916                         $parent["visible"] = 1;
917                 } else {
918                         // Preset the parent
919                         $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid`=%d", $uid);
920                         if (!$r)
921                                 return(-2);
922
923                         $parent = array();
924                         $parent["id"] = 0;
925                         $parent["parent"] = 0;
926                         $parent["uri"] = "";
927                         $parent["contact-id"] = $r[0]["id"];
928                         $parent["type"] = "remote";
929                         $parent["verb"] = ACTIVITY_POST;
930                         $parent["visible"] = 1;
931                 }
932
933                 $conv = str_replace("/conversation/", "/api/statusnet/conversation/", $conversation_url).".as";
934                 $pageno = 1;
935                 $items = array();
936
937                 logger('fetching conversation url '.$conv.' (Self: '.$self.') for user '.$uid);
938
939                 do {
940                         $conv_arr = z_fetch_url($conv."?page=".$pageno);
941
942                         // If it is a non-ssl site and there is an error, then try ssl or vice versa
943                         if (!$conv_arr["success"] AND (substr($conv, 0, 7) == "http://")) {
944                                 $conv = str_replace("http://", "https://", $conv);
945                                 $conv_as = fetch_url($conv."?page=".$pageno);
946                         } elseif (!$conv_arr["success"] AND (substr($conv, 0, 8) == "https://")) {
947                                 $conv = str_replace("https://", "http://", $conv);
948                                 $conv_as = fetch_url($conv."?page=".$pageno);
949                         } else
950                                 $conv_as = $conv_arr["body"];
951
952                         $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
953                         $conv_as = json_decode($conv_as);
954
955                         $no_of_items = sizeof($items);
956
957                         if (@is_array($conv_as->items))
958                                 foreach ($conv_as->items AS $single_item)
959                                         $items[$single_item->id] = $single_item;
960
961                         if ($no_of_items == sizeof($items))
962                                 break;
963
964                         $pageno++;
965
966                 } while (true);
967
968                 logger('fetching conversation done. Found '.count($items).' items');
969
970                 if (!sizeof($items)) {
971                         if (count($item) > 0) {
972                                 $item_stored = item_store($item, $all_threads);
973
974                                 if ($item_stored) {
975                                         logger("Conversation ".$conversation_url." couldn't be fetched. Item uri ".$item["uri"]." stored: ".$item_stored, LOGGER_DEBUG);
976                                         self::store_conversation($item_id, $conversation_url);
977                                 }
978
979                                 return($item_stored);
980                         } else
981                                 return(-3);
982                 }
983
984                 $items = array_reverse($items);
985
986                 $r = q("SELECT `nurl` FROM `contact` WHERE `uid` = %d AND `self`", intval($uid));
987                 $importer = $r[0];
988
989                 $new_parent = true;
990
991                 foreach ($items as $single_conv) {
992
993                         // Update the gcontact table
994                         self::conv_fetch_actor($single_conv->actor);
995
996                         // Test - remove before flight
997                         //$tempfile = tempnam(get_temppath(), "conversation");
998                         //file_put_contents($tempfile, json_encode($single_conv));
999
1000                         $mention = false;
1001
1002                         if (isset($single_conv->object->id))
1003                                 $single_conv->id = $single_conv->object->id;
1004
1005                         $plink = self::convert_href($single_conv->id);
1006                         if (isset($single_conv->object->url))
1007                                 $plink = self::convert_href($single_conv->object->url);
1008
1009                         if (@!$single_conv->id)
1010                                 continue;
1011
1012                         logger("Got id ".$single_conv->id, LOGGER_DEBUG);
1013
1014                         if ($first_id == "") {
1015                                 $first_id = $single_conv->id;
1016
1017                                 // The first post of the conversation isn't our first post. There are three options:
1018                                 // 1. Our conversation hasn't the "real" thread starter
1019                                 // 2. This first post is a post inside our thread
1020                                 // 3. This first post is a post inside another thread
1021                                 if (($first_id != $parent["uri"]) AND ($parent["uri"] != "")) {
1022
1023                                         $new_parent = true;
1024
1025                                         $new_parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
1026                                                                 (SELECT `parent` FROM `item`
1027                                                                         WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s')) LIMIT 1",
1028                                                 intval($uid), dbesc($first_id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
1029                                         if ($new_parents) {
1030                                                 if ($new_parents[0]["parent"] == $parent["parent"]) {
1031                                                         // Option 2: This post is already present inside our thread - but not as thread starter
1032                                                         logger("Option 2: uri present in our thread: ".$first_id, LOGGER_DEBUG);
1033                                                         $first_id = $parent["uri"];
1034                                                 } else {
1035                                                         // Option 3: Not so good. We have mixed parents. We have to see how to clean this up.
1036                                                         // For now just take the new parent.
1037                                                         $parent = $new_parents[0];
1038                                                         $first_id = $parent["uri"];
1039                                                         logger("Option 3: mixed parents for uri ".$first_id, LOGGER_DEBUG);
1040                                                 }
1041                                         } else {
1042                                                 // Option 1: We hadn't got the real thread starter
1043                                                 // We have to clean up our existing messages.
1044                                                 $parent["id"] = 0;
1045                                                 $parent["uri"] = $first_id;
1046                                                 logger("Option 1: we have a new parent: ".$first_id, LOGGER_DEBUG);
1047                                         }
1048                                 } elseif ($parent["uri"] == "") {
1049                                         $parent["id"] = 0;
1050                                         $parent["uri"] = $first_id;
1051                                 }
1052                         }
1053
1054                         $parent_uri = $parent["uri"];
1055
1056                         // "context" only seems to exist on older servers
1057                         if (isset($single_conv->context->inReplyTo->id)) {
1058                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
1059                                                         intval($uid), dbesc($single_conv->context->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
1060                                 if ($parent_exists)
1061                                         $parent_uri = $single_conv->context->inReplyTo->id;
1062                         }
1063
1064                         // This is the current way
1065                         if (isset($single_conv->object->inReplyTo->id)) {
1066                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
1067                                                         intval($uid), dbesc($single_conv->object->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
1068                                 if ($parent_exists)
1069                                         $parent_uri = $single_conv->object->inReplyTo->id;
1070                         }
1071
1072                         $message_exists = q("SELECT `id`, `parent`, `uri` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
1073                                                         intval($uid), dbesc($single_conv->id),
1074                                                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
1075                         if ($message_exists) {
1076                                 logger("Message ".$single_conv->id." already existed on the system", LOGGER_DEBUG);
1077
1078                                 if ($parent["id"] != 0) {
1079                                         $existing_message = $message_exists[0];
1080
1081                                         // We improved the way we fetch OStatus messages, this shouldn't happen very often now
1082                                         /// @TODO We have to change the shadow copies as well. This way here is really ugly.
1083                                         if ($existing_message["parent"] != $parent["id"]) {
1084                                                 logger('updating id '.$existing_message["id"].' with parent '.$existing_message["parent"].' to parent '.$parent["id"].' uri '.$parent["uri"].' thread '.$parent_uri, LOGGER_DEBUG);
1085
1086                                                 // Update the parent id of the selected item
1087                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `id` = %d",
1088                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["id"]));
1089
1090                                                 // Update the parent uri in the thread - but only if it points to itself
1091                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE `id` = %d AND `uri` = `thr-parent`",
1092                                                         dbesc($parent_uri), intval($existing_message["id"]));
1093
1094                                                 // try to change all items of the same parent
1095                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `parent` = %d",
1096                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["parent"]));
1097
1098                                                 // Update the parent uri in the thread - but only if it points to itself
1099                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE (`parent` = %d) AND (`uri` = `thr-parent`)",
1100                                                         dbesc($parent["uri"]), intval($existing_message["parent"]));
1101
1102                                                 // Now delete the thread
1103                                                 delete_thread($existing_message["parent"]);
1104                                         }
1105                                 }
1106
1107                                 // The item we are having on the system is the one that we wanted to store via the item array
1108                                 if (isset($item["uri"]) AND ($item["uri"] == $existing_message["uri"])) {
1109                                         $item = array();
1110                                         $item_stored = 0;
1111                                 }
1112
1113                                 continue;
1114                         }
1115
1116                         if (is_array($single_conv->to))
1117                                 foreach($single_conv->to AS $to)
1118                                         if ($importer["nurl"] == normalise_link($to->id))
1119                                                 $mention = true;
1120
1121                         $actor = $single_conv->actor->id;
1122                         if (isset($single_conv->actor->url))
1123                                 $actor = $single_conv->actor->url;
1124
1125                         $details = self::get_actor_details($actor, $uid, $parent["contact-id"]);
1126
1127                         // Do we only want to import threads that were started by our contacts?
1128                         if ($details["not_following"] AND $new_parent AND get_config('system','ostatus_full_threads')) {
1129                                 logger("Don't import uri ".$first_id." because user ".$uid." doesn't follow the person ".$actor, LOGGER_DEBUG);
1130                                 continue;
1131                         }
1132
1133                         $arr = array();
1134                         $arr["network"] = $details["network"];
1135                         $arr["uri"] = $single_conv->id;
1136                         $arr["plink"] = $plink;
1137                         $arr["uid"] = $uid;
1138                         $arr["contact-id"] = $details["contact_id"];
1139                         $arr["parent-uri"] = $parent_uri;
1140                         $arr["created"] = $single_conv->published;
1141                         $arr["edited"] = $single_conv->published;
1142                         $arr["owner-name"] = $single_conv->actor->displayName;
1143                         if ($arr["owner-name"] == '')
1144                                 $arr["owner-name"] = $single_conv->actor->contact->displayName;
1145                         if ($arr["owner-name"] == '')
1146                                 $arr["owner-name"] = $single_conv->actor->portablecontacts_net->displayName;
1147
1148                         $arr["owner-link"] = $actor;
1149                         $arr["owner-avatar"] = self::fix_avatar($single_conv->actor->image->url, $arr["owner-link"]);
1150
1151                         $arr["author-name"] = $arr["owner-name"];
1152                         $arr["author-link"] = $arr["owner-link"];
1153                         $arr["author-avatar"] = $arr["owner-avatar"];
1154                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->content));
1155
1156                         if (isset($single_conv->status_net->notice_info->source))
1157                                 $arr["app"] = strip_tags($single_conv->status_net->notice_info->source);
1158                         elseif (isset($single_conv->statusnet->notice_info->source))
1159                                 $arr["app"] = strip_tags($single_conv->statusnet->notice_info->source);
1160                         elseif (isset($single_conv->statusnet_notice_info->source))
1161                                 $arr["app"] = strip_tags($single_conv->statusnet_notice_info->source);
1162                         elseif (isset($single_conv->provider->displayName))
1163                                 $arr["app"] = $single_conv->provider->displayName;
1164                         else
1165                                 $arr["app"] = "OStatus";
1166
1167
1168                         $arr["object"] = json_encode($single_conv);
1169                         $arr["verb"] = $parent["verb"];
1170                         $arr["visible"] = $parent["visible"];
1171                         $arr["location"] = $single_conv->location->displayName;
1172                         $arr["coord"] = trim($single_conv->location->lat." ".$single_conv->location->lon);
1173
1174                         // Is it a reshared item?
1175                         if (isset($single_conv->verb) AND ($single_conv->verb == "share") AND isset($single_conv->object)) {
1176                                 if (is_array($single_conv->object))
1177                                         $single_conv->object = $single_conv->object[0];
1178
1179                                 logger("Found reshared item ".$single_conv->object->id);
1180
1181                                 // $single_conv->object->context->conversation;
1182
1183                                 if (isset($single_conv->object->object->id))
1184                                         $arr["uri"] = $single_conv->object->object->id;
1185                                 else
1186                                         $arr["uri"] = $single_conv->object->id;
1187
1188                                 if (isset($single_conv->object->object->url))
1189                                         $plink = self::convert_href($single_conv->object->object->url);
1190                                 else
1191                                         $plink = self::convert_href($single_conv->object->url);
1192
1193                                 if (isset($single_conv->object->object->content))
1194                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->object->content));
1195                                 else
1196                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->content));
1197
1198                                 $arr["plink"] = $plink;
1199
1200                                 $arr["created"] = $single_conv->object->published;
1201                                 $arr["edited"] = $single_conv->object->published;
1202
1203                                 $arr["author-name"] = $single_conv->object->actor->displayName;
1204                                 if ($arr["owner-name"] == '') {
1205                                         $arr["author-name"] = $single_conv->object->actor->contact->displayName;
1206                                 }
1207                                 $arr["author-link"] = $single_conv->object->actor->url;
1208                                 $arr["author-avatar"] = self::fix_avatar($single_conv->object->actor->image->url, $arr["author-link"]);
1209
1210                                 $arr["app"] = $single_conv->object->provider->displayName."#";
1211                                 //$arr["verb"] = $single_conv->object->verb;
1212
1213                                 $arr["location"] = $single_conv->object->location->displayName;
1214                                 $arr["coord"] = trim($single_conv->object->location->lat." ".$single_conv->object->location->lon);
1215                         }
1216
1217                         if ($arr["location"] == "")
1218                                 unset($arr["location"]);
1219
1220                         if ($arr["coord"] == "")
1221                                 unset($arr["coord"]);
1222
1223                         // Copy fields from given item array
1224                         if (isset($item["uri"]) AND (($item["uri"] == $arr["uri"]) OR ($item["uri"] ==  $single_conv->id))) {
1225                                 $copy_fields = array("owner-name", "owner-link", "owner-avatar", "author-name", "author-link", "author-avatar",
1226                                                         "gravity", "body", "object-type", "object", "verb", "created", "edited", "coord", "tag",
1227                                                         "title", "attach", "app", "type", "location", "contact-id", "uri");
1228                                 foreach ($copy_fields AS $field)
1229                                         if (isset($item[$field]))
1230                                                 $arr[$field] = $item[$field];
1231
1232                         }
1233
1234                         $newitem = item_store($arr);
1235                         if (!$newitem) {
1236                                 logger("Item wasn't stored ".print_r($arr, true), LOGGER_DEBUG);
1237                                 continue;
1238                         }
1239
1240                         if (isset($item["uri"]) AND ($item["uri"] == $arr["uri"])) {
1241                                 $item = array();
1242                                 $item_stored = $newitem;
1243                         }
1244
1245                         logger('Stored new item '.$plink.' for parent '.$arr["parent-uri"].' under id '.$newitem, LOGGER_DEBUG);
1246
1247                         // Add the conversation entry (but don't fetch the whole conversation)
1248                         self::store_conversation($newitem, $conversation_url);
1249
1250                         // If the newly created item is the top item then change the parent settings of the thread
1251                         // This shouldn't happen anymore. This is supposed to be absolote.
1252                         if ($arr["uri"] == $first_id) {
1253                                 logger('setting new parent to id '.$newitem);
1254                                 $new_parents = q("SELECT `id`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
1255                                         intval($uid), intval($newitem));
1256                                 if ($new_parents)
1257                                         $parent = $new_parents[0];
1258                         }
1259                 }
1260
1261                 if (($item_stored < 0) AND (count($item) > 0)) {
1262
1263                         if (get_config('system','ostatus_full_threads')) {
1264                                 $details = self::get_actor_details($item["owner-link"], $uid, $item["contact-id"]);
1265                                 if ($details["not_following"]) {
1266                                         logger("Don't import uri ".$item["uri"]." because user ".$uid." doesn't follow the person ".$item["owner-link"], LOGGER_DEBUG);
1267                                         return false;
1268                                 }
1269                         }
1270
1271                         $item_stored = item_store($item, $all_threads);
1272                         if ($item_stored) {
1273                                 logger("Uri ".$item["uri"]." wasn't found in conversation ".$conversation_url, LOGGER_DEBUG);
1274                                 self::store_conversation($item_stored, $conversation_url);
1275                         }
1276                 }
1277
1278                 return($item_stored);
1279         }
1280
1281         /**
1282          * @brief Stores conversation data into the database
1283          *
1284          * @param integer $itemid The id of the item
1285          * @param string $conversation_url The uri of the conversation
1286          */
1287         private function store_conversation($itemid, $conversation_url) {
1288
1289                 $conversation_url = self::convert_href($conversation_url);
1290
1291                 $messages = q("SELECT `uid`, `parent`, `created`, `received`, `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
1292                 if (!$messages)
1293                         return;
1294                 $message = $messages[0];
1295
1296                 // Store conversation url if not done before
1297                 $conversation = q("SELECT `url` FROM `term` WHERE `uid` = %d AND `oid` = %d AND `otype` = %d AND `type` = %d",
1298                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION));
1299
1300                 if (!$conversation) {
1301                         $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `created`, `received`, `guid`) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s')",
1302                                 intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION),
1303                                 dbesc($message["created"]), dbesc($conversation_url), dbesc($message["created"]), dbesc($message["received"]), dbesc($message["guid"]));
1304                         logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
1305                 }
1306         }
1307
1308         /**
1309          * @brief Checks if the current post is a reshare
1310          *
1311          * @param array $item The item array of thw post
1312          *
1313          * @return string The guid if the post is a reshare
1314          */
1315         private function get_reshared_guid($item) {
1316                 $body = trim($item["body"]);
1317
1318                 // Skip if it isn't a pure repeated messages
1319                 // Does it start with a share?
1320                 if (strpos($body, "[share") > 0)
1321                         return("");
1322
1323                 // Does it end with a share?
1324                 if (strlen($body) > (strrpos($body, "[/share]") + 8))
1325                         return("");
1326
1327                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
1328                 // Skip if there is no shared message in there
1329                 if ($body == $attributes)
1330                         return(false);
1331
1332                 $guid = "";
1333                 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
1334                 if ($matches[1] != "")
1335                         $guid = $matches[1];
1336
1337                 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
1338                 if ($matches[1] != "")
1339                         $guid = $matches[1];
1340
1341                 return $guid;
1342         }
1343
1344         /**
1345          * @brief Cleans the body of a post if it contains picture links
1346          *
1347          * @param string $body The body
1348          *
1349          * @return string The cleaned body
1350          */
1351         private function format_picture_post($body) {
1352                 $siteinfo = get_attached_data($body);
1353
1354                 if (($siteinfo["type"] == "photo")) {
1355                         if (isset($siteinfo["preview"]))
1356                                 $preview = $siteinfo["preview"];
1357                         else
1358                                 $preview = $siteinfo["image"];
1359
1360                         // Is it a remote picture? Then make a smaller preview here
1361                         $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
1362
1363                         // Is it a local picture? Then make it smaller here
1364                         $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
1365                         $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
1366
1367                         if (isset($siteinfo["url"]))
1368                                 $url = $siteinfo["url"];
1369                         else
1370                                 $url = $siteinfo["image"];
1371
1372                         $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
1373                 }
1374
1375                 return $body;
1376         }
1377
1378         /**
1379          * @brief Adds the header elements to the XML document
1380          *
1381          * @param object $doc XML document
1382          * @param array $owner Contact data of the poster
1383          *
1384          * @return object header root element
1385          */
1386         private function add_header($doc, $owner) {
1387
1388                 $a = get_app();
1389
1390                 $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
1391                 $doc->appendChild($root);
1392
1393                 $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1394                 $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1395                 $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1396                 $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1397                 $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
1398                 $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1399                 $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1400
1401                 $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
1402                 xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
1403                 xml::add_element($doc, $root, "id", App::get_baseurl()."/profile/".$owner["nick"]);
1404                 xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
1405                 xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
1406                 xml::add_element($doc, $root, "logo", $owner["photo"]);
1407                 xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
1408
1409                 $author = self::add_author($doc, $owner);
1410                 $root->appendChild($author);
1411
1412                 $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
1413                 xml::add_element($doc, $root, "link", "", $attributes);
1414
1415                 /// @TODO We have to find out what this is
1416                 /// $attributes = array("href" => App::get_baseurl()."/sup",
1417                 ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
1418                 ///             "type" => "application/json");
1419                 /// xml::add_element($doc, $root, "link", "", $attributes);
1420
1421                 self::hublinks($doc, $root);
1422
1423                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
1424                 xml::add_element($doc, $root, "link", "", $attributes);
1425
1426                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
1427                 xml::add_element($doc, $root, "link", "", $attributes);
1428
1429                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
1430                 xml::add_element($doc, $root, "link", "", $attributes);
1431
1432                 $attributes = array("href" => App::get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
1433                                 "rel" => "self", "type" => "application/atom+xml");
1434                 xml::add_element($doc, $root, "link", "", $attributes);
1435
1436                 return $root;
1437         }
1438
1439         /**
1440          * @brief Add the link to the push hubs to the XML document
1441          *
1442          * @param object $doc XML document
1443          * @param object $root XML root element where the hub links are added
1444          */
1445         public static function hublinks($doc, $root) {
1446                 $hub = get_config('system','huburl');
1447
1448                 $hubxml = '';
1449                 if(strlen($hub)) {
1450                         $hubs = explode(',', $hub);
1451                         if(count($hubs)) {
1452                                 foreach($hubs as $h) {
1453                                         $h = trim($h);
1454                                         if(! strlen($h))
1455                                                 continue;
1456                                         if ($h === '[internal]')
1457                                                 $h = App::get_baseurl() . '/pubsubhubbub';
1458                                         xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
1459                                 }
1460                         }
1461                 }
1462         }
1463
1464         /**
1465          * @brief Adds attachement data to the XML document
1466          *
1467          * @param object $doc XML document
1468          * @param object $root XML root element where the hub links are added
1469          * @param array $item Data of the item that is to be posted
1470          */
1471         private function get_attachment($doc, $root, $item) {
1472                 $o = "";
1473                 $siteinfo = get_attached_data($item["body"]);
1474
1475                 switch($siteinfo["type"]) {
1476                         case 'link':
1477                                 $attributes = array("rel" => "enclosure",
1478                                                 "href" => $siteinfo["url"],
1479                                                 "type" => "text/html; charset=UTF-8",
1480                                                 "length" => "",
1481                                                 "title" => $siteinfo["title"]);
1482                                 xml::add_element($doc, $root, "link", "", $attributes);
1483                                 break;
1484                         case 'photo':
1485                                 $imgdata = get_photo_info($siteinfo["image"]);
1486                                 $attributes = array("rel" => "enclosure",
1487                                                 "href" => $siteinfo["image"],
1488                                                 "type" => $imgdata["mime"],
1489                                                 "length" => intval($imgdata["size"]));
1490                                 xml::add_element($doc, $root, "link", "", $attributes);
1491                                 break;
1492                         case 'video':
1493                                 $attributes = array("rel" => "enclosure",
1494                                                 "href" => $siteinfo["url"],
1495                                                 "type" => "text/html; charset=UTF-8",
1496                                                 "length" => "",
1497                                                 "title" => $siteinfo["title"]);
1498                                 xml::add_element($doc, $root, "link", "", $attributes);
1499                                 break;
1500                         default:
1501                                 break;
1502                 }
1503
1504                 if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
1505                         $photodata = get_photo_info($siteinfo["image"]);
1506
1507                         $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
1508                         xml::add_element($doc, $root, "link", "", $attributes);
1509                 }
1510
1511
1512                 $arr = explode('[/attach],',$item['attach']);
1513                 if(count($arr)) {
1514                         foreach($arr as $r) {
1515                                 $matches = false;
1516                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
1517                                 if($cnt) {
1518                                         $attributes = array("rel" => "enclosure",
1519                                                         "href" => $matches[1],
1520                                                         "type" => $matches[3]);
1521
1522                                         if(intval($matches[2]))
1523                                                 $attributes["length"] = intval($matches[2]);
1524
1525                                         if(trim($matches[4]) != "")
1526                                                 $attributes["title"] = trim($matches[4]);
1527
1528                                         xml::add_element($doc, $root, "link", "", $attributes);
1529                                 }
1530                         }
1531                 }
1532         }
1533
1534         /**
1535          * @brief Adds the author element to the XML document
1536          *
1537          * @param object $doc XML document
1538          * @param array $owner Contact data of the poster
1539          *
1540          * @return object author element
1541          */
1542         private function add_author($doc, $owner) {
1543
1544                 $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
1545                 if ($r)
1546                         $profile = $r[0];
1547
1548                 $author = $doc->createElement("author");
1549                 xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
1550                 xml::add_element($doc, $author, "uri", $owner["url"]);
1551                 xml::add_element($doc, $author, "name", $owner["name"]);
1552                 xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
1553
1554                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
1555                 xml::add_element($doc, $author, "link", "", $attributes);
1556
1557                 $attributes = array(
1558                                 "rel" => "avatar",
1559                                 "type" => "image/jpeg", // To-Do?
1560                                 "media:width" => 175,
1561                                 "media:height" => 175,
1562                                 "href" => $owner["photo"]);
1563                 xml::add_element($doc, $author, "link", "", $attributes);
1564
1565                 if (isset($owner["thumb"])) {
1566                         $attributes = array(
1567                                         "rel" => "avatar",
1568                                         "type" => "image/jpeg", // To-Do?
1569                                         "media:width" => 80,
1570                                         "media:height" => 80,
1571                                         "href" => $owner["thumb"]);
1572                         xml::add_element($doc, $author, "link", "", $attributes);
1573                 }
1574
1575                 xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1576                 xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
1577                 xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
1578
1579                 if (trim($owner["location"]) != "") {
1580                         $element = $doc->createElement("poco:address");
1581                         xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
1582                         $author->appendChild($element);
1583                 }
1584
1585                 if (trim($profile["homepage"]) != "") {
1586                         $urls = $doc->createElement("poco:urls");
1587                         xml::add_element($doc, $urls, "poco:type", "homepage");
1588                         xml::add_element($doc, $urls, "poco:value", $profile["homepage"]);
1589                         xml::add_element($doc, $urls, "poco:primary", "true");
1590                         $author->appendChild($urls);
1591                 }
1592
1593                 if (count($profile)) {
1594                         xml::add_element($doc, $author, "followers", "", array("url" => App::get_baseurl()."/viewcontacts/".$owner["nick"]));
1595                         xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1596                 }
1597
1598                 return $author;
1599         }
1600
1601         /**
1602          * @TODO Picture attachments should look like this:
1603          *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1604          *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1605          *
1606         */
1607
1608         /**
1609          * @brief Returns the given activity if present - otherwise returns the "post" activity
1610          *
1611          * @param array $item Data of the item that is to be posted
1612          *
1613          * @return string activity
1614          */
1615         function construct_verb($item) {
1616                 if ($item['verb'])
1617                         return $item['verb'];
1618                 return ACTIVITY_POST;
1619         }
1620
1621         /**
1622          * @brief Returns the given object type if present - otherwise returns the "note" object type
1623          *
1624          * @param array $item Data of the item that is to be posted
1625          *
1626          * @return string Object type
1627          */
1628         function construct_objecttype($item) {
1629                 if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
1630                         return $item['object-type'];
1631                 return ACTIVITY_OBJ_NOTE;
1632         }
1633
1634         /**
1635          * @brief Adds an entry element to the XML document
1636          *
1637          * @param object $doc XML document
1638          * @param array $item Data of the item that is to be posted
1639          * @param array $owner Contact data of the poster
1640          * @param bool $toplevel
1641          *
1642          * @return object Entry element
1643          */
1644         private function entry($doc, $item, $owner, $toplevel = false) {
1645                 $repeated_guid = self::get_reshared_guid($item);
1646                 if ($repeated_guid != "")
1647                         $xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
1648
1649                 if ($xml)
1650                         return $xml;
1651
1652                 if ($item["verb"] == ACTIVITY_LIKE) {
1653                         return self::like_entry($doc, $item, $owner, $toplevel);
1654                 } elseif (in_array($item["verb"], array(ACTIVITY_FOLLOW, NAMESPACE_OSTATUS."/unfollow"))) {
1655                         return self::follow_entry($doc, $item, $owner, $toplevel);
1656                 } else {
1657                         return self::note_entry($doc, $item, $owner, $toplevel);
1658                 }
1659         }
1660
1661         /**
1662          * @brief Adds a source entry to the XML document
1663          *
1664          * @param object $doc XML document
1665          * @param array $contact Array of the contact that is added
1666          *
1667          * @return object Source element
1668          */
1669         private function source_entry($doc, $contact) {
1670                 $source = $doc->createElement("source");
1671                 xml::add_element($doc, $source, "id", $contact["poll"]);
1672                 xml::add_element($doc, $source, "title", $contact["name"]);
1673                 xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
1674                                                                 "type" => "text/html",
1675                                                                 "href" => $contact["alias"]));
1676                 xml::add_element($doc, $source, "link", "", array("rel" => "self",
1677                                                                 "type" => "application/atom+xml",
1678                                                                 "href" => $contact["poll"]));
1679                 xml::add_element($doc, $source, "icon", $contact["photo"]);
1680                 xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
1681
1682                 return $source;
1683         }
1684
1685         /**
1686          * @brief Fetches contact data from the contact or the gcontact table
1687          *
1688          * @param string $url URL of the contact
1689          * @param array $owner Contact data of the poster
1690          *
1691          * @return array Contact array
1692          */
1693         private function contact_entry($url, $owner) {
1694
1695                 $r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
1696                         dbesc(normalise_link($url)), intval($owner["uid"]));
1697                 if ($r) {
1698                         $contact = $r[0];
1699                         $contact["uid"] = -1;
1700                 }
1701
1702                 if (!$r) {
1703                         $r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1704                                 dbesc(normalise_link($url)));
1705                         if ($r) {
1706                                 $contact = $r[0];
1707                                 $contact["uid"] = -1;
1708                                 $contact["success_update"] = $contact["updated"];
1709                         }
1710                 }
1711
1712                 if (!$r)
1713                         $contact = owner;
1714
1715                 if (!isset($contact["poll"])) {
1716                         $data = probe_url($url);
1717                         $contact["poll"] = $data["poll"];
1718
1719                         if (!$contact["alias"])
1720                                 $contact["alias"] = $data["alias"];
1721                 }
1722
1723                 if (!isset($contact["alias"]))
1724                         $contact["alias"] = $contact["url"];
1725
1726                 return $contact;
1727         }
1728
1729         /**
1730          * @brief Adds an entry element with reshared content
1731          *
1732          * @param object $doc XML document
1733          * @param array $item Data of the item that is to be posted
1734          * @param array $owner Contact data of the poster
1735          * @param $repeated_guid
1736          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1737          *
1738          * @return object Entry element
1739          */
1740         private function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
1741
1742                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1743                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1744                 }
1745
1746                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1747
1748                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
1749                         intval($owner["uid"]), dbesc($repeated_guid),
1750                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
1751                 if ($r)
1752                         $repeated_item = $r[0];
1753                 else
1754                         return false;
1755
1756                 $contact = self::contact_entry($repeated_item['author-link'], $owner);
1757
1758                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1759
1760                 $title = $owner["nick"]." repeated a notice by ".$contact["nick"];
1761
1762                 self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
1763
1764                 $as_object = $doc->createElement("activity:object");
1765
1766                 xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
1767
1768                 self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
1769
1770                 $author = self::add_author($doc, $contact);
1771                 $as_object->appendChild($author);
1772
1773                 $as_object2 = $doc->createElement("activity:object");
1774
1775                 xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
1776
1777                 $title = sprintf("New comment by %s", $contact["nick"]);
1778
1779                 self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
1780
1781                 $as_object->appendChild($as_object2);
1782
1783                 self::entry_footer($doc, $as_object, $item, $owner, false);
1784
1785                 $source = self::source_entry($doc, $contact);
1786
1787                 $as_object->appendChild($source);
1788
1789                 $entry->appendChild($as_object);
1790
1791                 self::entry_footer($doc, $entry, $item, $owner);
1792
1793                 return $entry;
1794         }
1795
1796         /**
1797          * @brief Adds an entry element with a "like"
1798          *
1799          * @param object $doc XML document
1800          * @param array $item Data of the item that is to be posted
1801          * @param array $owner Contact data of the poster
1802          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1803          *
1804          * @return object Entry element with "like"
1805          */
1806         private function like_entry($doc, $item, $owner, $toplevel) {
1807
1808                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1809                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1810                 }
1811
1812                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1813
1814                 $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
1815                 self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
1816
1817                 $as_object = $doc->createElement("activity:object");
1818
1819                 $parent = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
1820                         dbesc($item["thr-parent"]), intval($item["uid"]));
1821                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1822
1823                 xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
1824
1825                 self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
1826
1827                 $entry->appendChild($as_object);
1828
1829                 self::entry_footer($doc, $entry, $item, $owner);
1830
1831                 return $entry;
1832         }
1833
1834         /**
1835          * @brief Adds the person object element to the XML document
1836          *
1837          * @param object $doc XML document
1838          * @param array $owner Contact data of the poster
1839          * @param array $contact Contact data of the target
1840          *
1841          * @return object author element
1842          */
1843         private function add_person_object($doc, $owner, $contact) {
1844
1845                 $object = $doc->createElement("activity:object");
1846                 xml::add_element($doc, $object, "activity:object-type", ACTIVITY_OBJ_PERSON);
1847
1848                 if ($contact['network'] == NETWORK_PHANTOM) {
1849                         xml::add_element($doc, $object, "id", $contact['url']);
1850                         return $object;
1851                 }
1852
1853                 xml::add_element($doc, $object, "id", $contact["alias"]);
1854                 xml::add_element($doc, $object, "title", $contact["nick"]);
1855
1856                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $contact["url"]);
1857                 xml::add_element($doc, $object, "link", "", $attributes);
1858
1859                 $attributes = array(
1860                                 "rel" => "avatar",
1861                                 "type" => "image/jpeg", // To-Do?
1862                                 "media:width" => 175,
1863                                 "media:height" => 175,
1864                                 "href" => $contact["photo"]);
1865                 xml::add_element($doc, $object, "link", "", $attributes);
1866
1867                 xml::add_element($doc, $object, "poco:preferredUsername", $contact["nick"]);
1868                 xml::add_element($doc, $object, "poco:displayName", $contact["name"]);
1869
1870                 if (trim($contact["location"]) != "") {
1871                         $element = $doc->createElement("poco:address");
1872                         xml::add_element($doc, $element, "poco:formatted", $contact["location"]);
1873                         $object->appendChild($element);
1874                 }
1875
1876                 return $object;
1877         }
1878
1879         /**
1880          * @brief Adds a follow/unfollow entry element
1881          *
1882          * @param object $doc XML document
1883          * @param array $item Data of the follow/unfollow message
1884          * @param array $owner Contact data of the poster
1885          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1886          *
1887          * @return object Entry element
1888          */
1889         private function follow_entry($doc, $item, $owner, $toplevel) {
1890
1891                 $item["id"] = $item["parent"] = 0;
1892                 $item["created"] = $item["edited"] = date("c");
1893                 $item["private"] = true;
1894
1895                 $contact = Probe::uri($item['follow']);
1896
1897                 if ($contact['alias'] == '') {
1898                         $contact['alias'] = $contact["url"];
1899                 } else {
1900                         $item['follow'] = $contact['alias'];
1901                 }
1902
1903                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1904                         intval($owner['uid']), dbesc(normalise_link($contact["url"])));
1905
1906                 if (dbm::is_result($r)) {
1907                         $connect_id = $r[0]['id'];
1908                 } else {
1909                         $connect_id = 0;
1910                 }
1911
1912                 if ($item['verb'] == ACTIVITY_FOLLOW) {
1913                         $message = t('%s is now following %s.');
1914                         $title = t('following');
1915                         $action = "subscription";
1916                 } else {
1917                         $message = t('%s stopped following %s.');
1918                         $title = t('stopped following');
1919                         $action = "unfollow";
1920                 }
1921
1922                 $item["uri"] = $item['parent-uri'] = $item['thr-parent'] =
1923                                 'tag:'.get_app()->get_hostname().
1924                                 ','.date('Y-m-d').':'.$action.':'.$owner['uid'].
1925                                 ':person:'.$connect_id.':'.$item['created'];
1926
1927                 $item["body"] = sprintf($message, $owner["nick"], $contact["nick"]);
1928
1929                 self::entry_header($doc, $entry, $owner, $toplevel);
1930
1931                 self::entry_content($doc, $entry, $item, $owner, $title);
1932
1933                 $object = self::add_person_object($doc, $owner, $contact);
1934                 $entry->appendChild($object);
1935
1936                 self::entry_footer($doc, $entry, $item, $owner);
1937
1938                 return $entry;
1939         }
1940
1941         /**
1942          * @brief Adds a regular entry element
1943          *
1944          * @param object $doc XML document
1945          * @param array $item Data of the item that is to be posted
1946          * @param array $owner Contact data of the poster
1947          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1948          *
1949          * @return object Entry element
1950          */
1951         private function note_entry($doc, $item, $owner, $toplevel) {
1952
1953                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1954                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1955                 }
1956
1957                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1958
1959                 xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1960
1961                 self::entry_content($doc, $entry, $item, $owner, $title);
1962
1963                 self::entry_footer($doc, $entry, $item, $owner);
1964
1965                 return $entry;
1966         }
1967
1968         /**
1969          * @brief Adds a header element to the XML document
1970          *
1971          * @param object $doc XML document
1972          * @param object $entry The entry element where the elements are added
1973          * @param array $owner Contact data of the poster
1974          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1975          *
1976          * @return string The title for the element
1977          */
1978         private function entry_header($doc, &$entry, $owner, $toplevel) {
1979                 /// @todo Check if this title stuff is really needed (I guess not)
1980                 if (!$toplevel) {
1981                         $entry = $doc->createElement("entry");
1982                         $title = sprintf("New note by %s", $owner["nick"]);
1983                 } else {
1984                         $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1985
1986                         $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1987                         $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1988                         $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1989                         $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1990                         $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1991                         $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1992                         $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1993
1994                         $author = self::add_author($doc, $owner);
1995                         $entry->appendChild($author);
1996
1997                         $title = sprintf("New comment by %s", $owner["nick"]);
1998                 }
1999                 return $title;
2000         }
2001
2002         /**
2003          * @brief Adds elements to the XML document
2004          *
2005          * @param object $doc XML document
2006          * @param object $entry Entry element where the content is added
2007          * @param array $item Data of the item that is to be posted
2008          * @param array $owner Contact data of the poster
2009          * @param string $title Title for the post
2010          * @param string $verb The activity verb
2011          * @param bool $complete Add the "status_net" element?
2012          */
2013         private function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
2014
2015                 if ($verb == "")
2016                         $verb = self::construct_verb($item);
2017
2018                 xml::add_element($doc, $entry, "id", $item["uri"]);
2019                 xml::add_element($doc, $entry, "title", $title);
2020
2021                 $body = self::format_picture_post($item['body']);
2022
2023                 if ($item['title'] != "")
2024                         $body = "[b]".$item['title']."[/b]\n\n".$body;
2025
2026                 $body = bbcode($body, false, false, 7);
2027
2028                 xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
2029
2030                 xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
2031                                                                 "href" => App::get_baseurl()."/display/".$item["guid"]));
2032
2033                 if ($complete AND ($item["id"] > 0))
2034                         xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
2035
2036                 xml::add_element($doc, $entry, "activity:verb", $verb);
2037
2038                 xml::add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
2039                 xml::add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
2040         }
2041
2042         /**
2043          * @brief Adds the elements at the foot of an entry to the XML document
2044          *
2045          * @param object $doc XML document
2046          * @param object $entry The entry element where the elements are added
2047          * @param array $item Data of the item that is to be posted
2048          * @param array $owner Contact data of the poster
2049          * @param $complete
2050          */
2051         private function entry_footer($doc, $entry, $item, $owner, $complete = true) {
2052
2053                 $mentioned = array();
2054
2055                 if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
2056                         $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
2057                         $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
2058
2059                         $attributes = array(
2060                                         "ref" => $parent_item,
2061                                         "type" => "text/html",
2062                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
2063                         xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
2064
2065                         $attributes = array(
2066                                         "rel" => "related",
2067                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
2068                         xml::add_element($doc, $entry, "link", "", $attributes);
2069
2070                         $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
2071                         $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
2072
2073                         $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
2074                                         intval($owner["uid"]),
2075                                         dbesc($parent_item));
2076                         if ($thrparent) {
2077                                 $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
2078                                 $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
2079                         }
2080                 }
2081
2082                 if (intval($item["parent"]) > 0) {
2083                         $conversation = App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"];
2084                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation", "href" => $conversation));
2085                         xml::add_element($doc, $entry, "ostatus:conversation", $conversation);
2086                 }
2087
2088                 $tags = item_getfeedtags($item);
2089
2090                 if(count($tags))
2091                         foreach($tags as $t)
2092                                 if ($t[0] == "@")
2093                                         $mentioned[$t[1]] = $t[1];
2094
2095                 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
2096                 $newmentions = array();
2097                 foreach ($mentioned AS $mention) {
2098                         $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
2099                         $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
2100                 }
2101                 $mentioned = $newmentions;
2102
2103                 foreach ($mentioned AS $mention) {
2104                         $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
2105                                 intval($owner["uid"]),
2106                                 dbesc(normalise_link($mention)));
2107                         if ($r[0]["forum"] OR $r[0]["prv"])
2108                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
2109                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
2110                                                                                         "href" => $mention));
2111                         else
2112                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
2113                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
2114                                                                                         "href" => $mention));
2115                 }
2116
2117                 if (!$item["private"]) {
2118                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
2119                                                                         "href" => "http://activityschema.org/collection/public"));
2120                         xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
2121                                                                         "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
2122                                                                         "href" => "http://activityschema.org/collection/public"));
2123                 }
2124
2125                 if(count($tags))
2126                         foreach($tags as $t)
2127                                 if ($t[0] != "@")
2128                                         xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
2129
2130                 self::get_attachment($doc, $entry, $item);
2131
2132                 if ($complete AND ($item["id"] > 0)) {
2133                         $app = $item["app"];
2134                         if ($app == "")
2135                                 $app = "web";
2136
2137                         $attributes = array("local_id" => $item["id"], "source" => $app);
2138
2139                         if (isset($parent["id"]))
2140                                 $attributes["repeat_of"] = $parent["id"];
2141
2142                         if ($item["coord"] != "")
2143                                 xml::add_element($doc, $entry, "georss:point", $item["coord"]);
2144
2145                         xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
2146                 }
2147         }
2148
2149         /**
2150          * @brief Creates the XML feed for a given nickname
2151          *
2152          * @param app $a The application class
2153          * @param string $owner_nick Nickname of the feed owner
2154          * @param string $last_update Date of the last update
2155          *
2156          * @return string XML feed
2157          */
2158         public static function feed(App $a, $owner_nick, $last_update) {
2159
2160                 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
2161                                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
2162                                 WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
2163                                 dbesc($owner_nick));
2164                 if (!$r)
2165                         return;
2166
2167                 $owner = $r[0];
2168
2169                 if(!strlen($last_update))
2170                         $last_update = 'now -30 days';
2171
2172                 $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
2173                 $authorid = get_contact($owner["url"], 0);
2174
2175                 $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
2176                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
2177                                 WHERE `item`.`uid` = %d AND `item`.`contact-id` = %d AND
2178                                         `item`.`author-id` = %d AND `item`.`created` > '%s' AND
2179                                         NOT `item`.`deleted` AND NOT `item`.`private` AND
2180                                         `thread`.`network` IN ('%s', '%s')
2181                                 ORDER BY `item`.`created` DESC LIMIT 300",
2182                                 intval($owner["uid"]), intval($owner["id"]),
2183                                 intval($authorid), dbesc($check_date),
2184                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
2185
2186 /*              2016-10-23: The old query will be kept until we are sure that the query above is a good and fast replacement
2187
2188                 $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item`
2189                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
2190                                 LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
2191                                 WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
2192                                         AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
2193                                         AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
2194                                                 OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
2195                                         AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
2196                                                 OR (`item`.`author-link` IN ('%s', '%s')))
2197                                 ORDER BY `item`.`id` DESC
2198                                 LIMIT 0, 300",
2199                                 intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
2200                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
2201                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
2202                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
2203                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
2204                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
2205                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
2206                         );
2207 */
2208                 $doc = new DOMDocument('1.0', 'utf-8');
2209                 $doc->formatOutput = true;
2210
2211                 $root = self::add_header($doc, $owner);
2212
2213                 foreach ($items AS $item) {
2214                         $entry = self::entry($doc, $item, $owner);
2215                         $root->appendChild($entry);
2216                 }
2217
2218                 return(trim($doc->saveXML()));
2219         }
2220
2221         /**
2222          * @brief Creates the XML for a salmon message
2223          *
2224          * @param array $item Data of the item that is to be posted
2225          * @param array $owner Contact data of the poster
2226          *
2227          * @return string XML for the salmon
2228          */
2229         public static function salmon($item,$owner) {
2230
2231                 $doc = new DOMDocument('1.0', 'utf-8');
2232                 $doc->formatOutput = true;
2233
2234                 $entry = self::entry($doc, $item, $owner, true);
2235
2236                 $doc->appendChild($entry);
2237
2238                 return(trim($doc->saveXML()));
2239         }
2240 }
2241 ?>