--- /dev/null
+<?php
+
+require_once('include/items.php');
+
+function dfrn_feed(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
+
+
+ $sitefeed = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic
+ $public_feed = (($dfrn_id) ? false : true);
+ $starred = false; // not yet implemented, possible security issues
+ $converse = false;
+
+ if($public_feed && $a->argc > 2) {
+ for($x = 2; $x < $a->argc; $x++) {
+ if($a->argv[$x] == 'converse')
+ $converse = true;
+ if($a->argv[$x] == 'starred')
+ $starred = true;
+ if($a->argv[$x] === 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1]))
+ $category = $a->argv[$x+1];
+ }
+ }
+
+
+
+ // default permissions - anonymous user
+
+ $sql_extra = " AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = '' ";
+
+ $r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
+ FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
+ WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
+ dbesc($owner_nick)
+ );
+
+ if(! count($r))
+ killme();
+
+ $owner = $r[0];
+ $owner_id = $owner['user_uid'];
+ $owner_nick = $owner['nickname'];
+
+ $birthday = feed_birthday($owner_id,$owner['timezone']);
+
+ $sql_post_table = "";
+ $visibility = "";
+
+ if(! $public_feed) {
+
+ $sql_extra = '';
+ switch($direction) {
+ case (-1):
+ $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
+ $my_id = $dfrn_id;
+ break;
+ case 0:
+ $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '1:' . $dfrn_id;
+ break;
+ case 1:
+ $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '0:' . $dfrn_id;
+ break;
+ default:
+ return false;
+ break; // NOTREACHED
+ }
+
+ $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
+ intval($owner_id)
+ );
+
+ if(! count($r))
+ killme();
+
+ $contact = $r[0];
+ require_once('include/security.php');
+ $groups = init_groups_visitor($contact['id']);
+
+ if(count($groups)) {
+ for($x = 0; $x < count($groups); $x ++)
+ $groups[$x] = '<' . intval($groups[$x]) . '>' ;
+ $gs = implode('|', $groups);
+ }
+ else
+ $gs = '<<>>' ; // Impossible to match
+
+ $sql_extra = sprintf("
+ AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' )
+ AND ( `deny_cid` = '' OR NOT `deny_cid` REGEXP '<%d>' )
+ AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
+ AND ( `deny_gid` = '' OR NOT `deny_gid` REGEXP '%s')
+ ",
+ intval($contact['id']),
+ intval($contact['id']),
+ dbesc($gs),
+ dbesc($gs)
+ );
+ }
+
+ if($public_feed)
+ $sort = 'DESC';
+ else
+ $sort = 'ASC';
+
+ $date_field = "`changed`";
+ $sql_order = "`item`.`parent` ".$sort.", `item`.`created` ASC";
+
+ if(! strlen($last_update))
+ $last_update = 'now -30 days';
+
+ if(isset($category)) {
+ $sql_post_table = sprintf("INNER JOIN (SELECT `oid` FROM `term` WHERE `term` = '%s' AND `otype` = %d AND `type` = %d AND `uid` = %d ORDER BY `tid` DESC) AS `term` ON `item`.`id` = `term`.`oid` ",
+ dbesc(protect_sprintf($category)), intval(TERM_OBJ_POST), intval(TERM_CATEGORY), intval($owner_id));
+ //$sql_extra .= file_tag_file_query('item',$category,'category');
+ }
+
+ if($public_feed) {
+ if(! $converse)
+ $sql_extra .= " AND `contact`.`self` = 1 ";
+ }
+
+ $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
+
+ // AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
+ // dbesc($check_date),
+
+ $r = q("SELECT STRAIGHT_JOIN `item`.*, `item`.`id` AS `item_id`,
+ `contact`.`name`, `contact`.`network`, `contact`.`photo`, `contact`.`url`,
+ `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
+ `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
+ `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`,
+ `sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
+ FROM `item` $sql_post_table
+ INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
+ AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
+ LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
+ WHERE `item`.`uid` = %d AND `item`.`visible` = 1 and `item`.`moderated` = 0 AND `item`.`parent` != 0
+ AND ((`item`.`wall` = 1) $visibility) AND `item`.$date_field > '%s'
+ $sql_extra
+ ORDER BY $sql_order LIMIT 0, 300",
+ intval($owner_id),
+ dbesc($check_date),
+ dbesc($sort)
+ );
+
+ // Will check further below if this actually returned results.
+ // We will provide an empty feed if that is the case.
+
+ $items = $r;
+
+ //$feed_template = get_markup_template(($dfrn_id) ? 'atom_feed_dfrn.tpl' : 'atom_feed.tpl');
+
+ //$atom = '';
+ $doc = new DOMDocument('1.0', 'utf-8');
+ $doc->formatOutput = true;
+
+ $xpath = new DomXPath($doc);
+ $xpath->registerNamespace('atom', "http://www.w3.org/2005/Atom");
+ $xpath->registerNamespace('thr', "http://purl.org/syndication/thread/1.0");
+ $xpath->registerNamespace('georss', "http://www.georss.org/georss");
+ $xpath->registerNamespace('activity', "http://activitystrea.ms/spec/1.0/");
+ $xpath->registerNamespace('media', "http://purl.org/syndication/atommedia");
+ $xpath->registerNamespace('poco', "http://portablecontacts.net/spec/1.0");
+ $xpath->registerNamespace('ostatus', "http://ostatus.org/schema/1.0");
+ $xpath->registerNamespace('statusnet', "http://status.net/schema/api/1/");
+
+ $root = ostatus_add_header($doc, $owner);
+ dfrn_add_header($root, $doc, $xpath, $owner);
+
+ // Todo $hubxml = feed_hublinks();
+
+ // Todo $salmon = feed_salmonlinks($owner_nick);
+
+ // todo $alternatelink = $owner['url'];
+
+/*
+ if(isset($category))
+ $alternatelink .= "/category/".$category;
+
+ $atom .= replace_macros($feed_template, array(
+ '$version' => xmlify(FRIENDICA_VERSION),
+ '$feed_id' => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
+ '$feed_title' => xmlify($owner['name']),
+ '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
+ '$hub' => $hubxml,
+ '$salmon' => $salmon,
+ '$alternatelink' => xmlify($alternatelink),
+ '$name' => xmlify($owner['name']),
+ '$profile_page' => xmlify($owner['url']),
+ '$photo' => xmlify($owner['photo']),
+ '$thumb' => xmlify($owner['thumb']),
+ '$picdate' => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
+ '$uridate' => xmlify(datetime_convert('UTC','UTC',$owner['uri-date'] . '+00:00' , ATOM_TIME)) ,
+ '$namdate' => xmlify(datetime_convert('UTC','UTC',$owner['name-date'] . '+00:00' , ATOM_TIME)) ,
+ '$birthday' => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : ''),
+ '$community' => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
+ ));
+*/
+ call_hooks('atom_feed', $atom);
+
+ if(! count($items)) {
+
+ call_hooks('atom_feed_end', $atom);
+
+ //$atom .= '</feed>' . "\r\n";
+ //return $atom;
+ return(trim($doc->saveXML()));
+ }
+
+ foreach($items as $item) {
+
+ // prevent private email from leaking.
+ if($item['network'] === NETWORK_MAIL)
+ continue;
+
+ // public feeds get html, our own nodes use bbcode
+
+ if($public_feed) {
+ $type = 'html';
+ // catch any email that's in a public conversation and make sure it doesn't leak
+ if($item['private'])
+ continue;
+ }
+ else {
+ $type = 'text';
+ }
+
+ //$atom .= atom_entry($item,$type,null,$owner,true);
+ $entry = ostatus_entry($doc, $item, $owner);
+ dfrn_entry($entry, $doc, $xpath, $item, $owner);
+ $root->appendChild($entry);
+
+ }
+
+ call_hooks('atom_feed_end', $atom);
+
+ //$atom .= '</feed>' . "\r\n";
+
+ //return $atom;
+ return(trim($doc->saveXML()));
+}
+
+/**
+ * @brief Adds the header elements for thr DFRN protocol
+ *
+ * We use the XML from OStatus as a base and are adding the DFRN parts to it.
+ *
+ * @root Class XML root element
+ * @doc Class XML document
+ * @xpath Class XML xpath
+ * @owner array Owner record
+ *
+ */
+function dfrn_add_header(&$root, $doc, $xpath, $owner) {
+
+ $root->setAttribute("xmlns:at", "http://purl.org/atompub/tombstones/1.0");
+ $root->setAttribute("xmlns:xmlns:dfrn", "http://purl.org/macgirvin/dfrn/1.0");
+
+ $attributes = array("href" => "http://creativecommons.org/licenses/by/3.0/", "rel" => "license");
+ xml_add_element($doc, $root, "link", "", $attributes);
+
+ xml_replace_element($doc, $root, $xpath, "title", $owner["name"]);
+ xml_remove_element($root, $xpath, "/atom:feed/subtitle");
+ xml_remove_element($root, $xpath, "/atom:feed/logo");
+ xml_remove_element($root, $xpath, "/atom:feed/author");
+
+ $author = dfrn_add_author($doc, $owner);
+ $root->appendChild($author);
+}
+
+function dfrn_add_author($doc, $owner) {
+ $a = get_app();
+
+ $author = $doc->createElement("author");
+
+ $namdate = datetime_convert('UTC', 'UTC', $owner['name-date'].'+00:00' , ATOM_TIME);
+ $uridate = datetime_convert('UTC', 'UTC', $owner['uri-date'].'+00:00', ATOM_TIME);
+ $picdate = datetime_convert('UTC', 'UTC', $owner['avatar-date'].'+00:00', ATOM_TIME);
+
+ $attributes = array("dfrn:updated" => $namdate);
+ xml_add_element($doc, $author, "name", $owner["name"], $attributes);
+
+ $attributes = array("dfrn:updated" => $namdate);
+ xml_add_element($doc, $author, "uri", $a->get_baseurl().'/profile/'.$owner["nickname"], $attributes);
+
+ $attributes = array("rel" => "photo", "type" => "image/jpeg", "dfrn:updated" => $picdate,
+ "media:width" => 175, "media:height" => 175, "href" => $owner['photo']);
+ xml_add_element($doc, $author, "link", "", $attributes);
+
+ $attributes = array("rel" => "avatar", "type" => "image/jpeg", "dfrn:updated" => $picdate,
+ "media:width" => 175, "media:height" => 175, "href" => $owner['photo']);
+ xml_add_element($doc, $author, "link", "", $attributes);
+
+ return $author;
+}
+
+function dfrn_entry($entry, $doc, $xpath, $item, $owner) {
+ $a = get_app();
+
+ $author = ostatus_add_author($doc, $owner);
+ $entry->appendChild($author);
+
+}
+
+function xml_replace_element($doc, $parent, $xpath, $element, $value = "", $attributes = array()) {
+ $old_element = $xpath->query("/atom:feed/".$element)->item(0);
+
+ $element = $doc->createElement($element, xmlify($value));
+
+ foreach ($attributes AS $key => $value) {
+ $attribute = $doc->createAttribute($key);
+ $attribute->value = xmlify($value);
+ $element->appendChild($attribute);
+ }
+
+ $parent->replaceChild($element, $old_element);
+}
+
+function xml_remove_element($parent, $xpath, $element) {
+ $old_element = $xpath->query($element)->item(0);
+ $parent->removeChild($old_element);
+}
projects / friendica.git / commitdiff