gnu-social/actions/imsettings.php

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<?php
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/**
* StatusNet, the distributed open-source microblogging tool
*
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* Settings for Jabber/XMPP integration
*
* 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/>.
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*
* @category Settings
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2008-2009 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
}
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/**
* Settings for Jabber/XMPP integration
*
* @category Settings
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*
* @see SettingsAction
*/
class ImsettingsAction extends SettingsAction
{
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/**
* Title of the page
*
* @return string Title of the page
*/
function title()
{
// TRANS: Title for Instant Messaging settings.
return _('IM settings');
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}
/**
* Instructions for use
*
* @return instructions for use
*/
function getInstructions()
{
// TRANS: Instant messaging settings page instructions.
// TRANS: [instant messages] is link text, "(%%doc.im%%)" is the link.
// TRANS: the order and formatting of link text and link should remain unchanged.
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return _('You can send and receive notices through '.
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'[instant messaging](%%doc.im%%). '.
'Configure your addresses and settings below.');
}
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/**
* Content area of the page
*
* We make different sections of the form for the different kinds of
* functions, and have submit buttons with different names. These
* are muxed by handlePost() to see what the user really wants to do.
*
* @return void
*/
function showContent()
{
$transports = array();
Event::handle('GetImTransports', array(&$transports));
if (! $transports) {
$this->element('div', array('class' => 'error'),
// TRANS: Message given in the IM settings if IM is not enabled on the site.
_('IM is not available.'));
return;
}
$user = common_current_user();
$user_im_prefs_by_transport = array();
foreach($transports as $transport=>$transport_info)
{
$this->elementStart('form', array('method' => 'post',
'id' => 'form_settings_im',
'class' => 'form_settings',
'action' =>
common_local_url('imsettings')));
$this->elementStart('fieldset', array('id' => 'settings_im_address'));
// TRANS: Form legend for IM settings form.
$this->element('legend', null, $transport_info['display']);
$this->hidden('token', common_session_token());
$this->hidden('transport', $transport);
if ($user_im_prefs = User_im_prefs::pkeyGet( array('transport' => $transport, 'user_id' => $user->id) )) {
$user_im_prefs_by_transport[$transport] = $user_im_prefs;
$this->element('p', 'form_confirmed', $user_im_prefs->screenname);
$this->element('p', 'form_note',
// TRANS: Form note in IM settings form. %s is the type of IM address that was confirmed.
sprintf(_('Current confirmed %s address.'),$transport_info['display']));
$this->hidden('screenname', $user_im_prefs->screenname);
// TRANS: Button label to remove a confirmed IM address.
$this->submit('remove', _m('BUTTON','Remove'));
} else {
$confirm = $this->getConfirmation($transport);
if ($confirm) {
$this->element('p', 'form_unconfirmed', $confirm->address);
// TRANS: Form note in IM settings form.
$this->element('p', 'form_note',
// TRANS: Form note in IM settings form.
// TRANS: %s is the IM service name, %2$s is the IM address set.
sprintf(_('Awaiting confirmation on this address. '.
'Check your %1$s account for a '.
'message with further instructions. '.
'(Did you add %2$s to your buddy list?)'),
$transport_info['display'],
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$transport_info['daemonScreenname']));
$this->hidden('screenname', $confirm->address);
// TRANS: Button label to cancel an IM address confirmation procedure.
$this->submit('cancel', _m('BUTTON','Cancel'));
} else {
$this->elementStart('ul', 'form_data');
$this->elementStart('li');
// TRANS: Field label for IM address.
$this->input('screenname', _('IM address'),
($this->arg('screenname')) ? $this->arg('screenname') : null,
// TRANS: Field title for IM address. %s is the IM service name.
sprintf(_('%s screenname.'),
$transport_info['display']));
$this->elementEnd('li');
$this->elementEnd('ul');
// TRANS: Button label for adding an IM address in IM settings form.
$this->submit('add', _m('BUTTON','Add'));
}
}
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
if($user_im_prefs_by_transport)
{
$this->elementStart('form', array('method' => 'post',
'id' => 'form_settings_im',
'class' => 'form_settings',
'action' =>
common_local_url('imsettings')));
$this->elementStart('fieldset', array('id' => 'settings_im_preferences'));
// TRANS: Header for IM preferences form.
$this->element('legend', null, _('IM Preferences'));
$this->hidden('token', common_session_token());
$this->elementStart('table');
$this->elementStart('tr');
foreach($user_im_prefs_by_transport as $transport=>$user_im_prefs)
{
$this->element('th', null, $transports[$transport]['display']);
}
$this->elementEnd('tr');
$preferences = array(
// TRANS: Checkbox label in IM preferences form.
array('name'=>'notify', 'description'=>_('Send me notices')),
// TRANS: Checkbox label in IM preferences form.
array('name'=>'updatefrompresence', 'description'=>_('Post a notice when my status changes.')),
// TRANS: Checkbox label in IM preferences form.
array('name'=>'replies', 'description'=>_('Send me replies '.
'from people I\'m not subscribed to.')),
// TRANS: Checkbox label in IM preferences form.
array('name'=>'microid', 'description'=>_('Publish a MicroID'))
);
foreach($preferences as $preference)
{
$this->elementStart('tr');
foreach($user_im_prefs_by_transport as $transport=>$user_im_prefs)
{
$preference_name = $preference['name'];
$this->elementStart('td');
$this->checkbox($transport . '_' . $preference['name'],
$preference['description'],
$user_im_prefs->$preference_name);
$this->elementEnd('td');
}
$this->elementEnd('tr');
}
$this->elementEnd('table');
// TRANS: Button label to save IM preferences.
$this->submit('save', _m('BUTTON','Save'));
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
}
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/**
* Get a confirmation code for this user
*
* @return Confirm_address address object for this user
*/
function getConfirmation($transport)
{
$user = common_current_user();
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$confirm = new Confirm_address();
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$confirm->user_id = $user->id;
$confirm->address_type = $transport;
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if ($confirm->find(true)) {
return $confirm;
} else {
return null;
}
}
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/**
* Handle posts to this form
*
* Based on the button that was pressed, muxes out to other functions
* to do the actual task requested.
*
* All sub-functions reload the form with a message -- success or failure.
*
* @return void
*/
function handlePost()
{
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// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
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// TRANS: Client error displayed when the session token does not match or is not given.
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$this->showForm(_('There was a problem with your session token. '.
'Try again, please.'));
return;
}
if ($this->arg('save')) {
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$this->savePreferences();
} else if ($this->arg('add')) {
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$this->addAddress();
} else if ($this->arg('cancel')) {
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$this->cancelConfirmation();
} else if ($this->arg('remove')) {
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$this->removeAddress();
} else {
// TRANS: Message given submitting a form with an unknown action in Instant Messaging settings.
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$this->showForm(_('Unexpected form submission.'));
}
}
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/**
* Save user's Jabber preferences
*
* These are the checkboxes at the bottom of the page. They're used to
* set different settings
*
* @return void
*/
function savePreferences()
{
$user = common_current_user();
$user_im_prefs = new User_im_prefs();
$user_im_prefs->query('BEGIN');
$user_im_prefs->user_id = $user->id;
if($user_im_prefs->find() && $user_im_prefs->fetch())
{
$preferences = array('notify', 'updatefrompresence', 'replies', 'microid');
do
{
$original = clone($user_im_prefs);
$new = clone($user_im_prefs);
foreach($preferences as $preference)
{
$new->$preference = $this->boolean($new->transport . '_' . $preference);
}
$result = $new->update($original);
if ($result === false) {
common_log_db_error($user, 'UPDATE', __FILE__);
// TRANS: Server error thrown on database error updating IM preferences.
$this->serverError(_('Could not update IM preferences.'));
}
}while($user_im_prefs->fetch());
}
$user_im_prefs->query('COMMIT');
// TRANS: Confirmation message for successful IM preferences save.
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$this->showForm(_('Preferences saved.'), true);
}
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/**
* Sends a confirmation to the address given
*
* Stores a confirmation record and sends out a
* message with the confirmation info.
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*
* @return void
*/
function addAddress()
{
$user = common_current_user();
$screenname = $this->trimmed('screenname');
$transport = $this->trimmed('transport');
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// Some validation
if (!$screenname) {
// TRANS: Message given saving IM address without having provided one.
$this->showForm(_('No screenname.'));
return;
}
if (!$transport) {
// TRANS: Form validation error when no transport is available setting an IM address.
$this->showForm(_('No transport.'));
return;
}
Event::handle('NormalizeImScreenname', array($transport, &$screenname));
if (!$screenname) {
// TRANS: Message given saving IM address that cannot be normalised.
$this->showForm(_('Cannot normalize that screenname.'));
return;
}
$valid = false;
Event::handle('ValidateImScreenname', array($transport, $screenname, &$valid));
if (!$valid) {
// TRANS: Message given saving IM address that not valid.
$this->showForm(_('Not a valid screenname.'));
return;
} else if ($this->screennameExists($transport, $screenname)) {
// TRANS: Message given saving IM address that is already set for another user.
$this->showForm(_('Screenname already belongs to another user.'));
return;
}
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$confirm = new Confirm_address();
$confirm->address = $screenname;
$confirm->address_type = $transport;
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$confirm->user_id = $user->id;
$confirm->code = common_confirmation_code(64);
XMPP queued output & initial retooling of DB queue manager to support non-Notice objects. Queue handlers for XMPP individual & firehose output now send their XML stanzas to another output queue instead of connecting directly to the chat server. This lets us have as many general processing threads as we need, while all actual XMPP input and output go through a single daemon with a single connection open. This avoids problems with multiple connected resources: * multiple windows shown in some chat clients (psi, gajim, kopete) * extra load on server * incoming message delivery forwarding issues Database changes: * queue_item drops 'notice_id' in favor of a 'frame' blob. This is based on Craig Andrews' work branch to generalize queues to take any object, but conservatively leaving out the serialization for now. Table updater (preserves any existing queued items) in db/rc3to09.sql Code changes to watch out for: * Queue handlers should now define a handle() method instead of handle_notice() * QueueDaemon and XmppDaemon now share common i/o (IoMaster) and respawning thread management (RespawningDaemon) infrastructure. * The polling XmppConfirmManager has been dropped, as the message is queued directly when saving IM settings. * Enable $config['queue']['debug_memory'] to output current memory usage at each run through the event loop to watch for memory leaks To do: * Adapt XMPP i/o to component connection mode for multi-site support. * XMPP input can also be broken out to a queue, which would allow the actual notice save etc to be handled by general queue threads. * Make sure there are no problems with simply pushing serialized Notice objects to queues. * Find a way to improve interactive performance of the database-backed queue handler; polling is pretty painful to XMPP. * Possibly redo the way QueueHandlers are injected into a QueueManager. The grouping used to split out the XMPP output queue is a bit awkward.
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$confirm->sent = common_sql_now();
$confirm->claimed = common_sql_now();
$result = $confirm->insert();
if ($result === false) {
common_log_db_error($confirm, 'INSERT', __FILE__);
// TRANS: Server error thrown on database error adding Instant Messaging confirmation code.
$this->serverError(_('Could not insert confirmation code.'));
}
Event::handle('SendImConfirmationCode', array($transport, $screenname, $confirm->code, $user));
// TRANS: Message given saving valid IM address that is to be confirmed.
$msg = _('A confirmation code was sent '.
'to the IM address you added.');
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$this->showForm($msg, true);
}
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/**
* Cancel a confirmation
*
* If a confirmation exists, cancel it.
*
* @return void
*/
function cancelConfirmation()
{
$screenname = $this->trimmed('screenname');
$transport = $this->trimmed('transport');
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$confirm = $this->getConfirmation($transport);
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if (!$confirm) {
// TRANS: Message given canceling Instant Messaging address confirmation that is not pending.
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$this->showForm(_('No pending confirmation to cancel.'));
return;
}
if ($confirm->address != $screenname) {
// TRANS: Message given canceling IM address confirmation for the wrong IM address.
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$this->showForm(_('That is the wrong IM address.'));
return;
}
$result = $confirm->delete();
if (!$result) {
common_log_db_error($confirm, 'DELETE', __FILE__);
// TRANS: Server error thrown on database error canceling IM address confirmation.
$this->serverError(_('Could not delete confirmation.'));
}
// TRANS: Message given after successfully canceling IM address confirmation.
$this->showForm(_('IM confirmation cancelled.'), true);
}
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/**
* Remove an address
*
* If the user has a confirmed address, remove it.
*
* @return void
*/
function removeAddress()
{
$user = common_current_user();
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$screenname = $this->trimmed('screenname');
$transport = $this->trimmed('transport');
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// Maybe an old tab open...?
$user_im_prefs = new User_im_prefs();
$user_im_prefs->user_id = $user->id;
if(! ($user_im_prefs->find() && $user_im_prefs->fetch())) {
// TRANS: Message given trying to remove an IM address that is not
// TRANS: registered for the active user.
$this->showForm(_('That is not your screenname.'));
return;
}
$result = $user_im_prefs->delete();
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if (!$result) {
common_log_db_error($user, 'UPDATE', __FILE__);
// TRANS: Server error thrown on database error removing a registered IM address.
$this->serverError(_('Could not update user IM preferences.'));
}
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// XXX: unsubscribe to the old address
// TRANS: Message given after successfully removing a registered Instant Messaging address.
$this->showForm(_('The IM address was removed.'), true);
}
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/**
* Does this screenname exist?
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*
* Checks if we already have another user with this address.
*
* @param string $transport Transport to check
* @param string $screenname Screenname to check
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*
* @return boolean whether the screenname exists
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*/
function screennameExists($transport, $screenname)
{
$user = common_current_user();
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$user_im_prefs = new User_im_prefs();
$user_im_prefs->transport = $transport;
$user_im_prefs->screenname = $screenname;
if($user_im_prefs->find() && $user_im_prefs->fetch()){
return true;
}else{
return false;
}
}
}