+
+ /**
+ * Returns an XML string fragment with limited profile information
+ * as an Atom <author> element.
+ *
+ * Assumes that Atom has been previously set up as the base namespace.
+ *
+ * @return string
+ */
+ function asAtomAuthor()
+ {
+ $xs = new XMLStringer(true);
+
+ $xs->elementStart('author');
+ $xs->element('name', null, $this->nickname);
+ $xs->element('uri', null, $this->getUri());
+ $xs->elementEnd('author');
+
+ return $xs->getString();
+ }
+
+ /**
+ * Returns an XML string fragment with profile information as an
+ * Activity Streams <activity:actor> element.
+ *
+ * Assumes that 'activity' namespace has been previously defined.
+ *
+ * @return string
+ */
+ function asActivityActor()
+ {
+ return $this->asActivityNoun('actor');
+ }
+
+ /**
+ * Returns an XML string fragment with profile information as an
+ * Activity Streams noun object with the given element type.
+ *
+ * Assumes that 'activity', 'georss', and 'poco' namespace has been
+ * previously defined.
+ *
+ * @param string $element one of 'actor', 'subject', 'object', 'target'
+ *
+ * @return string
+ */
+ function asActivityNoun($element)
+ {
+ $noun = ActivityObject::fromProfile($this);
+ return $noun->asString('activity:' . $element);
+ }
+
+ /**
+ * Returns the best URI for a profile. Plugins may override.
+ *
+ * @return string $uri
+ */
+ function getUri()
+ {
+ $uri = null;
+
+ // give plugins a chance to set the URI
+ if (Event::handle('StartGetProfileUri', array($this, &$uri))) {
+
+ // check for a local user first
+ $user = User::staticGet('id', $this->id);
+
+ if (!empty($user)) {
+ $uri = $user->uri;
+ } else {
+ // return OMB profile if any
+ $remote = Remote_profile::staticGet('id', $this->id);
+ if (!empty($remote)) {
+ $uri = $remote->uri;
+ }
+ }
+ Event::handle('EndGetProfileUri', array($this, &$uri));
+ }
+
+ return $uri;
+ }
+
+ function hasBlocked($other)
+ {
+ $block = Profile_block::get($this->id, $other->id);
+
+ if (empty($block)) {
+ $result = false;
+ } else {
+ $result = true;
+ }
+
+ return $result;
+ }