Merge commit 'origin/testing' into 0.9.x

Conflicts:
	lib/action.php
	lib/adminpanelaction.php

12 files changed, 715 insertions, 157 deletions

diff --git a/actions/allrss.php b/actions/allrss.php
index 28b1be27d..01e737ad7 100644
--- a/actions/allrss.php
+++ b/actions/allrss.php
@@ -83,6 +83,7 @@ class AllrssAction extends Rss10Action
     function getNotices($limit=0)
     {
         $cur = common_current_user();
+        $user = $this->user;
 
         if (!empty($cur) && $cur->id == $user->id) {
             $notice = $this->user->noticeInbox(0, $limit);
@@ -90,7 +91,6 @@ class AllrssAction extends Rss10Action
             $notice = $this->user->noticesWithFriends(0, $limit);
         }
 
-        $user    = $this->user;
         $notice  = $user->noticesWithFriends(0, $limit);
         $notices = array();
 
diff --git a/actions/apitimelinegroup.php b/actions/apitimelinegroup.php
index d0af49844..8f971392b 100644
--- a/actions/apitimelinegroup.php
+++ b/actions/apitimelinegroup.php
@@ -104,30 +104,21 @@ class ApiTimelineGroupAction extends ApiPrivateAuthAction
 
     function showTimeline()
     {
-        $sitename   = common_config('site', 'name');
-        $avatar     = $this->group->homepage_logo;
-        $title      = sprintf(_("%s timeline"), $this->group->nickname);
-
-        $subtitle   = sprintf(
-            _('Updates from %1$s on %2$s!'),
-            $this->group->nickname,
-            $sitename
-        );
-
-        $logo = ($avatar) ? $avatar : User_group::defaultLogo(AVATAR_PROFILE_SIZE);
+        // We'll pull common formatting out of this for other formats
+        $atom = new AtomGroupNoticeFeed($this->group);
 
         switch($this->format) {
         case 'xml':
             $this->showXmlTimeline($this->notices);
             break;
         case 'rss':
-                $this->showRssTimeline(
+            $this->showRssTimeline(
                 $this->notices,
-                $title,
+                $atom->title,
                 $this->group->homeUrl(),
-                $subtitle,
+                $atom->subtitle,
                 null,
-                $logo
+                $atom->logo
             );
             break;
         case 'atom':
@@ -136,38 +127,22 @@ class ApiTimelineGroupAction extends ApiPrivateAuthAction
 
             try {
 
-                $atom = new AtomGroupNoticeFeed($this->group);
-
-                // @todo set all this Atom junk up inside the feed class
-
-                $atom->setId($id);
-                $atom->setTitle($title);
-                $atom->setSubtitle($subtitle);
-                $atom->setLogo($logo);
-                $atom->setUpdated('now');
-
                 $atom->addAuthorRaw($this->group->asAtomAuthor());
                 $atom->setActivitySubject($this->group->asActivitySubject());
 
-                $atom->addLink($this->group->homeUrl());
-
                 $id = $this->arg('id');
                 $aargs = array('format' => 'atom');
                 if (!empty($id)) {
                     $aargs['id'] = $id;
                 }
+                $self = $this->getSelfUri('ApiTimelineGroup', $aargs);
 
-                $atom->setId($this->getSelfUri('ApiTimelineGroup', $aargs));
-
-                $atom->addLink(
-                    $this->getSelfUri('ApiTimelineGroup', $aargs),
-                    array('rel' => 'self', 'type' => 'application/atom+xml')
-                );
+                $atom->setId($self);
+                $atom->setSelfLink($self);
 
                 $atom->addEntryFromNotices($this->notices);
 
-                //$this->raw($atom->getString());
-                print $atom->getString(); // temp hack until PuSH feeds are redone cleanly
+                $this->raw($atom->getString());
 
             } catch (Atom10FeedException $e) {
                 $this->serverError(
diff --git a/actions/apitimelineuser.php b/actions/apitimelineuser.php
index 94491946c..2d0047c04 100644
--- a/actions/apitimelineuser.php
+++ b/actions/apitimelineuser.php
@@ -112,19 +112,17 @@ class ApiTimelineUserAction extends ApiBareAuthAction
     function showTimeline()
     {
         $profile = $this->user->getProfile();
-        $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
 
-        $sitename   = common_config('site', 'name');
-        $title      = sprintf(_("%s timeline"), $this->user->nickname);
+        // We'll use the shared params from the Atom stub
+        // for other feed types.
+        $atom = new AtomUserNoticeFeed($this->user);
+        $title      = $atom->title;
         $link       = common_local_url(
             'showstream',
             array('nickname' => $this->user->nickname)
         );
-        $subtitle   = sprintf(
-            _('Updates from %1$s on %2$s!'),
-            $this->user->nickname, $sitename
-        );
-        $logo = ($avatar) ? $avatar->displayUrl() : Avatar::defaultImage(AVATAR_PROFILE_SIZE);
+        $subtitle = $atom->subtitle;
+        $logo = $atom->logo;
 
         // FriendFeed's SUP protocol
         // Also added RSS and Atom feeds
@@ -146,47 +144,18 @@ class ApiTimelineUserAction extends ApiBareAuthAction
 
             header('Content-Type: application/atom+xml; charset=utf-8');
 
-            // @todo set all this Atom junk up inside the feed class
-
-            $atom = new AtomUserNoticeFeed($this->user);
-
-            $atom->setTitle($title);
-            $atom->setSubtitle($subtitle);
-            $atom->setLogo($logo);
-            $atom->setUpdated('now');
-
-            $atom->addLink(
-                common_local_url(
-                    'showstream',
-                    array('nickname' => $this->user->nickname)
-                )
-            );
-
             $id = $this->arg('id');
             $aargs = array('format' => 'atom');
             if (!empty($id)) {
                 $aargs['id'] = $id;
             }
-
-            $atom->setId($this->getSelfUri('ApiTimelineUser', $aargs));
-
-            $atom->addLink(
-                $this->getSelfUri('ApiTimelineUser', $aargs),
-                array('rel' => 'self', 'type' => 'application/atom+xml')
-            );
-
-            $atom->addLink(
-                $suplink,
-                array(
-                    'rel' => 'http://api.friendfeed.com/2008/03#sup',
-                    'type' => 'application/json'
-                )
-            );
+            $self = $this->getSelfUri('ApiTimelineUser', $aargs);
+            $atom->setId($self);
+            $atom->setSelfLink($self);
 
             $atom->addEntryFromNotices($this->notices);
 
-            #$this->raw($atom->getString());
-            print $atom->getString(); // temporary for output buffering
+            $this->raw($atom->getString());
 
             break;
         case 'json':
diff --git a/actions/grantrole.php b/actions/grantrole.php
new file mode 100644
index 000000000..cd6bd4d79
--- /dev/null
+++ b/actions/grantrole.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Action class to sandbox an abusive user
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @author    Evan Prodromou <evan@status.net>
+ * @copyright 2009 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+/**
+ * Sandbox a user.
+ *
+ * @category Action
+ * @package  StatusNet
+ * @author   Evan Prodromou <evan@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link     http://status.net/
+ */
+
+class GrantRoleAction extends ProfileFormAction
+{
+    /**
+     * Check parameters
+     *
+     * @param array $args action arguments (URL, GET, POST)
+     *
+     * @return boolean success flag
+     */
+
+    function prepare($args)
+    {
+        if (!parent::prepare($args)) {
+            return false;
+        }
+        
+        $this->role = $this->arg('role');
+        if (!Profile_role::isValid($this->role)) {
+            $this->clientError(_("Invalid role."));
+            return false;
+        }
+        if (!Profile_role::isSettable($this->role)) {
+            $this->clientError(_("This role is reserved and cannot be set."));
+            return false;
+        }
+
+        $cur = common_current_user();
+
+        assert(!empty($cur)); // checked by parent
+
+        if (!$cur->hasRight(Right::GRANTROLE)) {
+            $this->clientError(_("You cannot grant user roles on this site."));
+            return false;
+        }
+
+        assert(!empty($this->profile)); // checked by parent
+
+        if ($this->profile->hasRole($this->role)) {
+            $this->clientError(_("User already has this role."));
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Sandbox a user.
+     *
+     * @return void
+     */
+
+    function handlePost()
+    {
+        $this->profile->grantRole($this->role);
+    }
+}
diff --git a/actions/oauthconnectionssettings.php b/actions/oauthconnectionssettings.php
index b1467f0d0..f125f4c63 100644
--- a/actions/oauthconnectionssettings.php
+++ b/actions/oauthconnectionssettings.php
@@ -99,7 +99,7 @@ class OauthconnectionssettingsAction extends ConnectSettingsAction
 
         $application = $profile->getApplications($offset, $limit);
 
-        $cnt == 0;
+        $cnt = 0;
 
         if (!empty($application)) {
             $al = new ApplicationList($application, $user, $this, true);
@@ -112,7 +112,7 @@ class OauthconnectionssettingsAction extends ConnectSettingsAction
 
         $this->pagination($this->page > 1, $cnt > APPS_PER_PAGE,
                           $this->page, 'connectionssettings',
-                          array('nickname' => $this->user->nickname));
+                          array('nickname' => $user->nickname));
     }
 
     /**
diff --git a/actions/revokerole.php b/actions/revokerole.php
new file mode 100644
index 000000000..b78c1c25a
--- /dev/null
+++ b/actions/revokerole.php
@@ -0,0 +1,99 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Action class to sandbox an abusive user
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @author    Evan Prodromou <evan@status.net>
+ * @copyright 2009 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+/**
+ * Sandbox a user.
+ *
+ * @category Action
+ * @package  StatusNet
+ * @author   Evan Prodromou <evan@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link     http://status.net/
+ */
+
+class RevokeRoleAction extends ProfileFormAction
+{
+    /**
+     * Check parameters
+     *
+     * @param array $args action arguments (URL, GET, POST)
+     *
+     * @return boolean success flag
+     */
+
+    function prepare($args)
+    {
+        if (!parent::prepare($args)) {
+            return false;
+        }
+        
+        $this->role = $this->arg('role');
+        if (!Profile_role::isValid($this->role)) {
+            $this->clientError(_("Invalid role."));
+            return false;
+        }
+        if (!Profile_role::isSettable($this->role)) {
+            $this->clientError(_("This role is reserved and cannot be set."));
+            return false;
+        }
+
+        $cur = common_current_user();
+
+        assert(!empty($cur)); // checked by parent
+
+        if (!$cur->hasRight(Right::REVOKEROLE)) {
+            $this->clientError(_("You cannot revoke user roles on this site."));
+            return false;
+        }
+
+        assert(!empty($this->profile)); // checked by parent
+
+        if (!$this->profile->hasRole($this->role)) {
+            $this->clientError(_("User doesn't have this role."));
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Sandbox a user.
+     *
+     * @return void
+     */
+
+    function handlePost()
+    {
+        $this->profile->revokeRole($this->role);
+    }
+}
diff --git a/actions/showgroup.php b/actions/showgroup.php
index 4e1fcb6c7..5704b13d1 100644
--- a/actions/showgroup.php
+++ b/actions/showgroup.php
@@ -301,19 +301,20 @@ class ShowgroupAction extends GroupDesignAction
         $this->element('h2', null, _('Group actions'));
         $this->elementStart('ul');
         $this->elementStart('li', 'entity_subscribe');
-        $cur = common_current_user();
-        if ($cur) {
-            if ($cur->isMember($this->group)) {
-                $lf = new LeaveForm($this, $this->group);
-                $lf->show();
-            } else if (!Group_block::isBlocked($this->group, $cur->getProfile())) {
-                $jf = new JoinForm($this, $this->group);
-                $jf->show();
+        if (Event::handle('StartGroupSubscribe', array($this, $this->group))) {
+            $cur = common_current_user();
+            if ($cur) {
+                if ($cur->isMember($this->group)) {
+                    $lf = new LeaveForm($this, $this->group);
+                    $lf->show();
+                } else if (!Group_block::isBlocked($this->group, $cur->getProfile())) {
+                    $jf = new JoinForm($this, $this->group);
+                    $jf->show();
+                }
             }
+            Event::handle('EndGroupSubscribe', array($this, $this->group));
         }
-
         $this->elementEnd('li');
-
         $this->elementEnd('ul');
         $this->elementEnd('div');
     }
diff --git a/actions/siteadminpanel.php b/actions/siteadminpanel.php
index 8c8f8b374..cb3c2e8fd 100644
--- a/actions/siteadminpanel.php
+++ b/actions/siteadminpanel.php
@@ -66,7 +66,7 @@ class SiteadminpanelAction extends AdminPanelAction
 
     function getInstructions()
     {
-        return _('Basic settings for this StatusNet site.');
+        return _('Basic settings for this StatusNet site');
     }
 
     /**
@@ -90,10 +90,11 @@ class SiteadminpanelAction extends AdminPanelAction
 
     function saveSettings()
     {
-        static $settings = array('site' => array('name', 'broughtby', 'broughtbyurl',
-                                                 'email', 'timezone', 'language',
-                                                 'site', 'textlimit', 'dupelimit'),
-                                 'snapshot' => array('run', 'reporturl', 'frequency'));
+        static $settings = array(
+            'site' => array('name', 'broughtby', 'broughtbyurl',
+            'email', 'timezone', 'language',
+            'site', 'textlimit', 'dupelimit'),
+        );
 
         $values = array();
 
@@ -158,25 +159,6 @@ class SiteadminpanelAction extends AdminPanelAction
             $this->clientError(sprintf(_('Unknown language "%s".'), $values['site']['language']));
         }
 
-        // Validate report URL
-
-        if (!is_null($values['snapshot']['reporturl']) &&
-            !Validate::uri($values['snapshot']['reporturl'], array('allowed_schemes' => array('http', 'https')))) {
-            $this->clientError(_("Invalid snapshot report URL."));
-        }
-
-        // Validate snapshot run value
-
-        if (!in_array($values['snapshot']['run'], array('web', 'cron', 'never'))) {
-            $this->clientError(_("Invalid snapshot run value."));
-        }
-
-        // Validate snapshot run value
-
-        if (!Validate::number($values['snapshot']['frequency'])) {
-            $this->clientError(_("Snapshot frequency must be a number."));
-        }
-
         // Validate text limit
 
         if (!Validate::number($values['site']['textlimit'], array('min' => 140))) {
@@ -277,40 +259,14 @@ class SiteAdminPanelForm extends AdminForm
         $this->unli();
 
         $this->li();
-        $this->out->dropdown('language', _('Language'),
-                             get_nice_language_list(), _('Default site language'),
+        $this->out->dropdown('language', _('Default language'),
+                             get_nice_language_list(), _('Site language when autodetection from browser settings is not available'),
                              false, $this->value('language'));
         $this->unli();
 
         $this->out->elementEnd('ul');
         $this->out->elementEnd('fieldset');
 
-        $this->out->elementStart('fieldset', array('id' => 'settings_admin_snapshots'));
-        $this->out->element('legend', null, _('Snapshots'));
-        $this->out->elementStart('ul', 'form_data');
-        $this->li();
-        $snapshot = array('web' => _('Randomly during Web hit'),
-                          'cron' => _('In a scheduled job'),
-                          'never' => _('Never'));
-        $this->out->dropdown('run', _('Data snapshots'),
-                             $snapshot, _('When to send statistical data to status.net servers'),
-                             false, $this->value('run', 'snapshot'));
-        $this->unli();
-
-        $this->li();
-        $this->input('frequency', _('Frequency'),
-                     _('Snapshots will be sent once every N web hits'),
-                     'snapshot');
-        $this->unli();
-
-        $this->li();
-        $this->input('reporturl', _('Report URL'),
-                     _('Snapshots will be sent to this URL'),
-                     'snapshot');
-        $this->unli();
-        $this->out->elementEnd('ul');
-        $this->out->elementEnd('fieldset');
-
         $this->out->elementStart('fieldset', array('id' => 'settings_admin_limits'));
         $this->out->element('legend', null, _('Limits'));
         $this->out->elementStart('ul', 'form_data');
diff --git a/actions/sitenoticeadminpanel.php b/actions/sitenoticeadminpanel.php
new file mode 100644
index 000000000..613a2e96b
--- /dev/null
+++ b/actions/sitenoticeadminpanel.php
@@ -0,0 +1,201 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Site notice administration panel
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Settings
+ * @package   StatusNet
+ * @author    Zach Copley <zach@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
+
+/**
+ * Update the site-wide notice text
+ *
+ * @category Admin
+ * @package  StatusNet
+ * @author   Zach Copley <zach@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://status.net/
+ */
+
+class SitenoticeadminpanelAction extends AdminPanelAction
+{
+    /**
+     * Returns the page title
+     *
+     * @return string page title
+     */
+
+    function title()
+    {
+        return _('Site Notice');
+    }
+
+    /**
+     * Instructions for using this form.
+     *
+     * @return string instructions
+     */
+
+    function getInstructions()
+    {
+        return _('Edit site-wide message');
+    }
+
+    /**
+     * Show the site notice admin panel form
+     *
+     * @return void
+     */
+
+    function showForm()
+    {
+        $form = new SiteNoticeAdminPanelForm($this);
+        $form->show();
+        return;
+    }
+
+    /**
+     * Save settings from the form
+     *
+     * @return void
+     */
+
+    function saveSettings()
+    {
+        $siteNotice = $this->trimmed('site-notice');
+
+        // assert(all values are valid);
+        // This throws an exception on validation errors
+
+        $this->validate(&$siteNotice);
+
+        $config = new Config();
+
+        $result = Config::save('site', 'notice', $siteNotice);
+
+        if (!result) {
+            $this->ServerError(_("Unable to save site notice."));
+        }
+    }
+
+    function validate(&$siteNotice)
+    {
+        // Validate notice text
+
+        if (mb_strlen($siteNotice) > 255)  {
+            $this->clientError(
+                _('Max length for the site-wide notice is 255 chars')
+            );
+        }
+
+        // scrub HTML input
+
+        $config = array(
+            'safe' => 1,
+            'deny_attribute' => 'id,style,on*'
+        );
+
+        $siteNotice = htmLawed($siteNotice, $config);
+    }
+}
+
+class SiteNoticeAdminPanelForm extends AdminForm
+{
+    /**
+     * ID of the form
+     *
+     * @return int ID of the form
+     */
+
+    function id()
+    {
+        return 'form_site_notice_admin_panel';
+    }
+
+    /**
+     * class of the form
+     *
+     * @return string class of the form
+     */
+
+    function formClass()
+    {
+        return 'form_settings';
+    }
+
+    /**
+     * Action of the form
+     *
+     * @return string URL of the action
+     */
+
+    function action()
+    {
+        return common_local_url('sitenoticeadminpanel');
+    }
+
+    /**
+     * Data elements of the form
+     *
+     * @return void
+     */
+
+    function formData()
+    {
+        $this->out->elementStart('ul', 'form_data');
+
+        $this->out->elementStart('li');
+        $this->out->textarea(
+            'site-notice',
+            _('Site notice text'),
+            common_config('site', 'notice'),
+            _('Site-wide notice text (255 chars max; HTML okay)')
+        );
+        $this->out->elementEnd('li');
+
+        $this->out->elementEnd('ul');
+    }
+
+    /**
+     * Action elements
+     *
+     * @return void
+     */
+
+    function formActions()
+    {
+        $this->out->submit(
+            'submit',
+            _('Save'),
+            'submit',
+            null,
+            _('Save site notice')
+        );
+    }
+}
diff --git a/actions/snapshotadminpanel.php b/actions/snapshotadminpanel.php
new file mode 100644
index 000000000..a0c2315bc
--- /dev/null
+++ b/actions/snapshotadminpanel.php
@@ -0,0 +1,251 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Snapshots administration panel
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Settings
+ * @package   StatusNet
+ * @author    Zach Copley <zach@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+/**
+ * Manage snapshots
+ *
+ * @category Admin
+ * @package  StatusNet
+ * @author   Zach Copley <zach@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://status.net/
+ */
+
+class SnapshotadminpanelAction extends AdminPanelAction
+{
+    /**
+     * Returns the page title
+     *
+     * @return string page title
+     */
+
+    function title()
+    {
+        return _('Snapshots');
+    }
+
+    /**
+     * Instructions for using this form.
+     *
+     * @return string instructions
+     */
+
+    function getInstructions()
+    {
+        return _('Manage snapshot configuration');
+    }
+
+    /**
+     * Show the snapshots admin panel form
+     *
+     * @return void
+     */
+
+    function showForm()
+    {
+        $form = new SnapshotAdminPanelForm($this);
+        $form->show();
+        return;
+    }
+
+    /**
+     * Save settings from the form
+     *
+     * @return void
+     */
+
+    function saveSettings()
+    {
+        static $settings = array(
+            'snapshot' => array('run', 'reporturl', 'frequency')
+        );
+
+        $values = array();
+
+        foreach ($settings as $section => $parts) {
+            foreach ($parts as $setting) {
+                $values[$section][$setting] = $this->trimmed($setting);
+            }
+        }
+
+        // This throws an exception on validation errors
+
+        $this->validate($values);
+
+        // assert(all values are valid);
+
+        $config = new Config();
+
+        $config->query('BEGIN');
+
+        foreach ($settings as $section => $parts) {
+            foreach ($parts as $setting) {
+                Config::save($section, $setting, $values[$section][$setting]);
+            }
+        }
+
+        $config->query('COMMIT');
+
+        return;
+    }
+
+    function validate(&$values)
+    {
+        // Validate snapshot run value
+
+        if (!in_array($values['snapshot']['run'], array('web', 'cron', 'never'))) {
+            $this->clientError(_("Invalid snapshot run value."));
+        }
+
+        // Validate snapshot frequency value
+
+        if (!Validate::number($values['snapshot']['frequency'])) {
+            $this->clientError(_("Snapshot frequency must be a number."));
+        }
+
+        // Validate report URL
+
+        if (!is_null($values['snapshot']['reporturl'])
+            && !Validate::uri(
+                $values['snapshot']['reporturl'],
+                array('allowed_schemes' => array('http', 'https')
+            )
+        )) {
+            $this->clientError(_("Invalid snapshot report URL."));
+        }
+    }
+}
+
+class SnapshotAdminPanelForm extends AdminForm
+{
+    /**
+     * ID of the form
+     *
+     * @return int ID of the form
+     */
+
+    function id()
+    {
+        return 'form_snapshot_admin_panel';
+    }
+
+    /**
+     * class of the form
+     *
+     * @return string class of the form
+     */
+
+    function formClass()
+    {
+        return 'form_settings';
+    }
+
+    /**
+     * Action of the form
+     *
+     * @return string URL of the action
+     */
+
+    function action()
+    {
+        return common_local_url('snapshotadminpanel');
+    }
+
+    /**
+     * Data elements of the form
+     *
+     * @return void
+     */
+
+    function formData()
+    {
+        $this->out->elementStart(
+            'fieldset',
+            array('id' => 'settings_admin_snapshots')
+        );
+        $this->out->element('legend', null, _('Snapshots'));
+        $this->out->elementStart('ul', 'form_data');
+        $this->li();
+        $snapshot = array(
+            'web' => _('Randomly during Web hit'),
+            'cron'  => _('In a scheduled job'),
+            'never' => _('Never')
+        );
+        $this->out->dropdown(
+            'run',
+            _('Data snapshots'),
+            $snapshot,
+            _('When to send statistical data to status.net servers'),
+            false,
+            $this->value('run', 'snapshot')
+        );
+        $this->unli();
+
+        $this->li();
+        $this->input(
+            'frequency',
+            _('Frequency'),
+            _('Snapshots will be sent once every N web hits'),
+            'snapshot'
+        );
+        $this->unli();
+
+        $this->li();
+        $this->input(
+            'reporturl',
+            _('Report URL'),
+            _('Snapshots will be sent to this URL'),
+            'snapshot'
+        );
+        $this->unli();
+        $this->out->elementEnd('ul');
+        $this->out->elementEnd('fieldset');
+    }
+
+    /**
+     * Action elements
+     *
+     * @return void
+     */
+
+    function formActions()
+    {
+        $this->out->submit(
+            'submit',
+            _('Save'),
+            'submit',
+            null,
+            _('Save snapshot settings')
+        );
+    }
+}
diff --git a/actions/subscribers.php b/actions/subscribers.php
index cd3e2ee5b..4bced6284 100644
--- a/actions/subscribers.php
+++ b/actions/subscribers.php
@@ -143,9 +143,12 @@ class SubscribersListItem extends SubscriptionListItem
     function showActions()
     {
         $this->startActions();
-        $this->showSubscribeButton();
-        // Relevant code!
-        $this->showBlockForm();
+        if (Event::handle('StartProfileListItemActionElements', array($this))) {
+            $this->showSubscribeButton();
+            // Relevant code!
+            $this->showBlockForm();
+            Event::handle('EndProfileListItemActionElements', array($this));
+        }
         $this->endActions();
     }
 
diff --git a/actions/usergroups.php b/actions/usergroups.php
index 97faabae6..29bda0a76 100644
--- a/actions/usergroups.php
+++ b/actions/usergroups.php
@@ -130,22 +130,26 @@ class UsergroupsAction extends OwnerDesignAction
                        _('Search for more groups'));
         $this->elementEnd('p');
 
-        $offset = ($this->page-1) * GROUPS_PER_PAGE;
-        $limit =  GROUPS_PER_PAGE + 1;
+        if (Event::handle('StartShowUserGroupsContent', array($this))) {
+            $offset = ($this->page-1) * GROUPS_PER_PAGE;
+            $limit =  GROUPS_PER_PAGE + 1;
+
+            $groups = $this->user->getGroups($offset, $limit);
+
+            if ($groups) {
+                $gl = new GroupList($groups, $this->user, $this);
+                $cnt = $gl->show();
+                if (0 == $cnt) {
+                    $this->showEmptyListMessage();
+                }
+            }
 
-        $groups = $this->user->getGroups($offset, $limit);
+            $this->pagination($this->page > 1, $cnt > GROUPS_PER_PAGE,
+                              $this->page, 'usergroups',
+                              array('nickname' => $this->user->nickname));
 
-        if ($groups) {
-            $gl = new GroupList($groups, $this->user, $this);
-            $cnt = $gl->show();
-            if (0 == $cnt) {
-                $this->showEmptyListMessage();
-            }
+            Event::handle('EndShowUserGroupsContent', array($this));
         }
-
-        $this->pagination($this->page > 1, $cnt > GROUPS_PER_PAGE,
-                          $this->page, 'usergroups',
-                          array('nickname' => $this->user->nickname));
     }
 
     function showEmptyListMessage()