Extract out Facebook app stuff into a plugin

1 files changed, 277 insertions, 0 deletions

diff --git a/plugins/Facebook/facebookhome.php b/plugins/Facebook/facebookhome.php
new file mode 100644
index 000000000..91c0cc6b8
--- /dev/null
+++ b/plugins/Facebook/facebookhome.php
@@ -0,0 +1,277 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * 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/>.
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+require_once INSTALLDIR . '/plugins/Facebook/facebookaction.php';
+
+class FacebookhomeAction extends FacebookAction
+{
+
+    var $page = null;
+
+    function prepare($argarray)
+    {
+        parent::prepare($argarray);
+
+        $this->page = $this->trimmed('page');
+
+        if (!$this->page) {
+            $this->page = 1;
+        }
+
+        return true;
+    }
+
+    function handle($args)
+    {
+        parent::handle($args);
+
+        // If the user has opted not to initially allow the app to have
+        // Facebook status update permission, store that preference. Only
+        // promt the user the first time she uses the app
+        if ($this->arg('skip') || $args['fb_sig_request_method'] == 'GET') {
+            $this->facebook->api_client->data_setUserPreference(
+                FACEBOOK_PROMPTED_UPDATE_PREF, 'true');
+        }
+
+        if ($this->flink) {
+
+            $this->user = $this->flink->getUser();
+
+            // If this is the first time the user has started the app
+            // prompt for Facebook status update permission
+            if (!$this->facebook->api_client->users_hasAppPermission('publish_stream')) {
+
+                 if ($this->facebook->api_client->data_getUserPreference(
+                    FACEBOOK_PROMPTED_UPDATE_PREF) != 'true') {
+                        $this->getUpdatePermission();
+                        return;
+                 }
+             }
+
+             // Make sure the user's profile box has the lastest notice
+             $notice = $this->user->getCurrentNotice();
+             if ($notice) {
+                 $this->updateProfileBox($notice);
+             }
+
+             if ($this->arg('status_submit') == 'Send') {
+                $this->saveNewNotice();
+             }
+
+            // User is authenticated and has already been prompted once for
+            // Facebook status update permission? Then show the main page
+            // of the app
+            $this->showPage();
+
+        } else {
+
+            // User hasn't authenticated yet, prompt for creds
+            $this->login();
+        }
+
+    }
+
+    function login()
+    {
+
+        $this->showStylesheets();
+
+        $nickname = common_canonical_nickname($this->trimmed('nickname'));
+        $password = $this->arg('password');
+
+        $msg = null;
+
+        if ($nickname) {
+
+            if (common_check_user($nickname, $password)) {
+
+                $user = User::staticGet('nickname', $nickname);
+
+                if (!$user) {
+                    $this->showLoginForm(_("Server error - couldn't get user!"));
+                }
+
+                $flink = DB_DataObject::factory('foreign_link');
+                $flink->user_id = $user->id;
+                $flink->foreign_id = $this->fbuid;
+                $flink->service = FACEBOOK_SERVICE;
+                $flink->created = common_sql_now();
+                $flink->set_flags(true, false, false, false);
+
+                $flink_id = $flink->insert();
+
+                // XXX: Do some error handling here
+
+                $this->setDefaults();
+
+                $this->getUpdatePermission();
+                return;
+
+            } else {
+                $msg = _('Incorrect username or password.');
+            }
+        }
+
+        $this->showLoginForm($msg);
+        $this->showFooter();
+
+    }
+
+    function setDefaults()
+    {
+        $this->facebook->api_client->data_setUserPreference(
+            FACEBOOK_PROMPTED_UPDATE_PREF, 'false');
+    }
+
+    function showNoticeForm()
+    {
+        $post_action = "$this->app_uri/index.php";
+
+        $notice_form = new FacebookNoticeForm($this, $post_action, null,
+            $post_action, $this->user);
+        $notice_form->show();
+    }
+
+    function title()
+    {
+        if ($this->page > 1) {
+            return sprintf(_("%s and friends, page %d"), $this->user->nickname, $this->page);
+        } else {
+            return sprintf(_("%s and friends"), $this->user->nickname);
+        }
+    }
+
+    function showContent()
+    {
+        $notice = $this->user->noticeInbox(($this->page-1) * NOTICES_PER_PAGE, NOTICES_PER_PAGE + 1);
+
+        $nl = new NoticeList($notice, $this);
+
+        $cnt = $nl->show();
+
+        $this->pagination($this->page > 1, $cnt > NOTICES_PER_PAGE,
+                          $this->page, 'index.php', array('nickname' => $this->user->nickname));
+    }
+
+    function showNoticeList($notice)
+    {
+
+        $nl = new NoticeList($notice, $this);
+        return $nl->show();
+    }
+
+    function getUpdatePermission() {
+
+        $this->showStylesheets();
+
+        $this->elementStart('div', array('class' => 'facebook_guide'));
+
+        $instructions = sprintf(_('If you would like the %s app to automatically update ' .
+            'your Facebook status with your latest notice, you need ' .
+            'to give it permission.'), $this->app_name);
+
+        $this->elementStart('p');
+        $this->element('span', array('id' => 'permissions_notice'), $instructions);
+        $this->elementEnd('p');
+
+        $this->elementStart('form', array('method' => 'post',
+                                           'action' => "index.php",
+                                           'id' => 'facebook-skip-permissions'));
+
+        $this->elementStart('ul', array('id' => 'fb-permissions-list'));
+        $this->elementStart('li', array('id' => 'fb-permissions-item'));
+
+        $next = urlencode("$this->app_uri/index.php");
+        $api_key = common_config('facebook', 'apikey');
+
+        $auth_url = 'http://www.facebook.com/authorize.php?api_key=' .
+            $api_key . '&v=1.0&ext_perm=publish_stream&next=' . $next .
+            '&next_cancel=' . $next . '&submit=skip';
+
+        $this->elementStart('span', array('class' => 'facebook-button'));
+        $this->element('a', array('href' => $auth_url),
+            sprintf(_('Okay, do it!'), $this->app_name));
+        $this->elementEnd('span');
+
+        $this->elementEnd('li');
+
+        $this->elementStart('li', array('id' => 'fb-permissions-item'));
+        $this->submit('skip', _('Skip'));
+        $this->elementEnd('li');
+        $this->elementEnd('ul');
+
+        $this->elementEnd('form');
+        $this->elementEnd('div');
+
+    }
+
+    /**
+     * Generate pagination links
+     *
+     * @param boolean $have_before is there something before?
+     * @param boolean $have_after  is there something after?
+     * @param integer $page        current page
+     * @param string  $action      current action
+     * @param array   $args        rest of query arguments
+     *
+     * @return nothing
+     */
+    function pagination($have_before, $have_after, $page, $action, $args=null)
+    {
+
+        // Does a little before-after block for next/prev page
+
+        // XXX: Fix so this uses common_local_url() if possible.
+
+        if ($have_before || $have_after) {
+            $this->elementStart('div', array('class' => 'pagination'));
+            $this->elementStart('dl', null);
+            $this->element('dt', null, _('Pagination'));
+            $this->elementStart('dd', null);
+            $this->elementStart('ul', array('class' => 'nav'));
+        }
+        if ($have_before) {
+            $pargs   = array('page' => $page-1);
+            $newargs = $args ? array_merge($args, $pargs) : $pargs;
+            $this->elementStart('li', array('class' => 'nav_prev'));
+            $this->element('a', array('href' => "$action?page=$newargs[page]", 'rel' => 'prev'),
+                           _('After'));
+            $this->elementEnd('li');
+        }
+        if ($have_after) {
+            $pargs   = array('page' => $page+1);
+            $newargs = $args ? array_merge($args, $pargs) : $pargs;
+            $this->elementStart('li', array('class' => 'nav_next'));
+            $this->element('a', array('href' => "$action?page=$newargs[page]", 'rel' => 'next'),
+                           _('Before'));
+            $this->elementEnd('li');
+        }
+        if ($have_before || $have_after) {
+            $this->elementEnd('ul');
+            $this->elementEnd('dd');
+            $this->elementEnd('dl');
+            $this->elementEnd('div');
+        }
+    }
+
+}