457 lines
19 KiB
PHP
457 lines
19 KiB
PHP
<?php
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/**
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* Name: WindowsPhonePush
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* Description: Enable push notification to send information to Friendica Mobile app on Windows phone (count of unread timeline entries, text of last posting - if wished by user)
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* Version: 2.0
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* Author: Gerhard Seeber <http://friendica.seeber.at/profile/admin>
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*
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*
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* Pre-requisite: Windows Phone mobile device (at least WP 7.0)
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* Friendica mobile app on Windows Phone
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*
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* When addon is installed, the system calls the addon
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* name_install() function, located in 'addon/name/name.php',
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* where 'name' is the name of the addon.
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* If the addon is removed from the configuration list, the
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* system will call the name_uninstall() function.
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*
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* Version history:
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* 1.1 : addon crashed on php versions >= 5.4 as of removed deprecated call-time
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* pass-by-reference used in function calls within function windowsphonepush_content
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* 2.0 : adaption for supporting emphasizing new entries in app (count on tile cannot be read out,
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* so we need to retrieve counter through show_settings secondly). Provide new function for
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* calling from app to set the counter back after start (if user starts again before cronjob
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* sets the counter back
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* count only unseen elements which are not type=activity (likes and dislikes not seen as new elements)
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*/
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use Friendica\App;
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use Friendica\Content\Text\BBCode;
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use Friendica\Content\Text\HTML;
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use Friendica\Core\Hook;
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use Friendica\Core\Logger;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Model\Item;
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use Friendica\Model\Post;
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use Friendica\Model\User;
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use Friendica\Network\HTTPException\UnauthorizedException;
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function windowsphonepush_install()
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{
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/* Our addon will attach in three places.
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* The first is within cron - so the push notifications will be
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* sent every 10 minutes (or whatever is set in crontab).
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*/
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Hook::register('cron', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_cron');
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/* Then we'll attach into the addon settings page, and also the
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* settings post hook so that we can create and update
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* user preferences. User shall be able to activate the addon and
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* define whether he allows pushing first characters of item text
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*/
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Hook::register('addon_settings', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_settings');
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Hook::register('addon_settings_post', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_settings_post');
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Logger::notice("installed windowsphonepush");
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}
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/* declare the windowsphonepush function so that /windowsphonepush url requests will land here */
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function windowsphonepush_module()
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{
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}
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/* Callback from the settings post function.
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* $post contains the $_POST array.
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* We will make sure we've got a valid user account
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* and if so set our configuration setting for this person.
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*/
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function windowsphonepush_settings_post($a, $post)
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{
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if (!local_user() || empty($_POST['windowsphonepush-submit'])) {
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return;
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}
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$enable = intval($_POST['windowsphonepush']);
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DI::pConfig()->set(local_user(), 'windowsphonepush', 'enable', $enable);
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if ($enable) {
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DI::pConfig()->set(local_user(), 'windowsphonepush', 'counterunseen', 0);
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}
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DI::pConfig()->set(local_user(), 'windowsphonepush', 'senditemtext', intval($_POST['windowsphonepush-senditemtext']));
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}
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/* Called from the Addon Setting form.
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* Add our own settings info to the page.
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*/
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function windowsphonepush_settings(&$a, &$s)
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{
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if (!local_user()) {
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return;
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}
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/* Add our stylesheet to the page so we can make our settings look nice */
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DI::page()['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . DI::baseUrl()->get() . '/addon/windowsphonepush/windowsphonepush.css' . '" media="all" />' . "\r\n";
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/* Get the current state of our config variables */
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$enabled = DI::pConfig()->get(local_user(), 'windowsphonepush', 'enable');
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$checked_enabled = (($enabled) ? ' checked="checked" ' : '');
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$senditemtext = DI::pConfig()->get(local_user(), 'windowsphonepush', 'senditemtext');
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$checked_senditemtext = (($senditemtext) ? ' checked="checked" ' : '');
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$device_url = DI::pConfig()->get(local_user(), 'windowsphonepush', 'device_url');
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/* Add some HTML to the existing form */
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$s .= '<div class="settings-block">';
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$s .= '<h3>' . DI::l10n()->t('WindowsPhonePush Settings') . '</h3>';
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$s .= '<div id="windowsphonepush-enable-wrapper">';
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$s .= '<label id="windowsphonepush-enable-label" for="windowsphonepush-enable-chk">' . DI::l10n()->t('Enable WindowsPhonePush Addon') . '</label>';
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$s .= '<input id="windowsphonepush-enable-chk" type="checkbox" name="windowsphonepush" value="1" ' . $checked_enabled . '/>';
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$s .= '</div><div class="clear"></div>';
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$s .= '<div id="windowsphonepush-senditemtext-wrapper">';
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$s .= '<label id="windowsphonepush-senditemtext-label" for="windowsphonepush-senditemtext-chk">' . DI::l10n()->t('Push text of new item') . '</label>';
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$s .= '<input id="windowsphonepush-senditemtext-chk" type="checkbox" name="windowsphonepush-senditemtext" value="1" ' . $checked_senditemtext . '/>';
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$s .= '</div><div class="clear"></div>';
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/* provide a submit button - enable und senditemtext can be changed by the user */
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$s .= '<div class="settings-submit-wrapper" ><input type="submit" id="windowsphonepush-submit" name="windowsphonepush-submit" class="settings-submit" value="' . DI::l10n()->t('Save Settings') . '" /></div><div class="clear"></div>';
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/* provide further read-only information concerning the addon (useful for */
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$s .= '<div id="windowsphonepush-device_url-wrapper">';
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$s .= '<label id="windowsphonepush-device_url-label" for="windowsphonepush-device_url-text">Device-URL</label>';
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$s .= '<input id="windowsphonepush-device_url-text" type="text" readonly value=' . $device_url . '/>';
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$s .= '</div><div class="clear"></div></div>';
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return;
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}
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/* Cron function used to regularly check all users on the server with active windowsphonepushaddon and send
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* notifications to the Microsoft servers and consequently to the Windows Phone device
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*/
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function windowsphonepush_cron()
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{
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// retrieve all UID's for which the addon windowsphonepush is enabled and loop through every user
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$pconfigs = DBA::selectToArray('pconfig', ['uid'], ['cat' => 'windowsphonepush', 'k' => 'enable', 'v' => true]);
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foreach ($pconfigs as $rr) {
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// load stored information for the user-id of the current loop
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$device_url = DI::pConfig()->get($rr['uid'], 'windowsphonepush', 'device_url');
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$lastpushid = DI::pConfig()->get($rr['uid'], 'windowsphonepush', 'lastpushid');
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// pushing only possible if device_url (the URI on Microsoft server) is available or not "NA" (which will be sent
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// by app if user has switched the server setting in app - sending blank not possible as this would return an update error)
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if (( $device_url == "" ) || ( $device_url == "NA" )) {
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// no Device-URL for the user availabe, but addon is enabled --> write info to Logger
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Logger::notice("WARN: windowsphonepush is enable for user " . $rr['uid'] . ", but no Device-URL is specified for the user.");
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} else {
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// retrieve the number of unseen items and the id of the latest one (if there are more than
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// one new entries since last poller run, only the latest one will be pushed)
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$count = DBA::fetchFirst("SELECT count(`id`) AS count, max(`id`) AS max FROM `post-view` WHERE `unseen` AND `type` != ? AND `uid` = ?", 'activity', $rr['uid']);
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// send number of unseen items to the device (the number will be displayed on Start screen until
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// App will be started by user) - this update will be sent every 10 minutes to update the number to 0 if
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// user has loaded the timeline through app or website
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$res_tile = send_tile_update($device_url, "", $count['count'], "");
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switch (trim($res_tile)) {
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case "Received":
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// ok, count has been pushed, let's save it in personal settings
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DI::pConfig()->set($rr['uid'], 'windowsphonepush', 'counterunseen', $count['count']);
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break;
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case "QueueFull":
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// maximum of 30 messages reached, server rejects any further push notification until device reconnects
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Logger::notice("INFO: Device-URL '" . $device_url . "' returns a QueueFull.");
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break;
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case "Suppressed":
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// notification received and dropped as something in app was not enabled
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Logger::notice("WARN. Device-URL '" . $device_url . "' returns a Suppressed. Unexpected error in Mobile App?");
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break;
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case "Dropped":
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// mostly combines with Expired, in that case Device-URL will be deleted from pconfig (function send_push)
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break;
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default:
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// error, mostly called by "" which means that the url (not "" which has been checked)
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// didn't not received Microsoft Notification Server -> wrong url
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Logger::notice("ERROR: specified Device-URL '" . $device_url . "' didn't produced any response.");
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}
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// additionally user receives the text of the newest item (function checks against last successfully pushed item)
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if (intval($count['max']) > intval($lastpushid)) {
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// user can define if he wants to see the text of the item in the push notification
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// this has been implemented as the device_url is not a https uri (not so secure)
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$senditemtext = DI::pConfig()->get($rr['uid'], 'windowsphonepush', 'senditemtext');
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if ($senditemtext == 1) {
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// load item with the max id
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$item = Post::selectFirst(['author-name', 'body', 'uri-id'], ['id' => $count['max']]);
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// as user allows to send the item, we want to show the sender of the item in the toast
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// toasts are limited to one line, therefore place is limited - author shall be in
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// max. 15 chars (incl. dots); author is displayed in bold font
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$author = $item['author-name'];
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$author = ((strlen($author) > 12) ? substr($author, 0, 12) . "..." : $author);
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// normally we show the body of the item, however if it is an url or an image we cannot
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// show this in the toast (only test), therefore changing to an alternate text
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// Otherwise BBcode-Tags will be eliminated and plain text cutted to 140 chars (incl. dots)
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// BTW: information only possible in English
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$body = $item['body'];
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if (substr($body, 0, 4) == "[url") {
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$body = "URL/Image ...";
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} else {
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$body = BBCode::convertForUriId($item['uri-id'], $body, BBCode::API);
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$body = HTML::toPlaintext($body, 0);
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$body = ((strlen($body) > 137) ? substr($body, 0, 137) . "..." : $body);
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}
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} else {
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// if user wishes higher privacy, we only display "Friendica - New timeline entry arrived"
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$author = "Friendica";
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$body = "New timeline entry arrived ...";
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}
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// only if toast push notification returns the Notification status "Received" we will update th settings with the
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// new indicator max-id is checked against (QueueFull, Suppressed, N/A, Dropped shall qualify to resend
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// the push notification some minutes later (BTW: if resulting in Expired for subscription status the
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// device_url will be deleted (no further try on this url, see send_push)
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// further log information done on count pushing with send_tile (see above)
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$res_toast = send_toast($device_url, $author, $body);
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if (trim($res_toast) === 'Received') {
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DI::pConfig()->set($rr['uid'], 'windowsphonepush', 'lastpushid', $count['max']);
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}
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}
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}
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}
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}
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/* Tile push notification change the number in the icon of the App in Start Screen of
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* a Windows Phone Device, Image could be changed, not used for App "Friendica Mobile"
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*/
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function send_tile_update($device_url, $image_url, $count, $title, $priority = 1)
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{
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$msg = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" .
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"<wp:Notification xmlns:wp=\"WPNotification\">" .
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"<wp:Tile>" .
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"<wp:BackgroundImage>" . $image_url . "</wp:BackgroundImage>" .
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"<wp:Count>" . $count . "</wp:Count>" .
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"<wp:Title>" . $title . "</wp:Title>" .
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"</wp:Tile> " .
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"</wp:Notification>";
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$result = send_push($device_url, [
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'X-WindowsPhone-Target: token',
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'X-NotificationClass: ' . $priority,
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], $msg);
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return $result;
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}
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/* Toast push notification send information to the top of the display
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* if the user is not currently using the Friendica Mobile App, however
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* there is only one line for displaying the information
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*/
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function send_toast($device_url, $title, $message, $priority = 2)
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{
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$msg = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" .
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"<wp:Notification xmlns:wp=\"WPNotification\">" .
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"<wp:Toast>" .
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"<wp:Text1>" . $title . "</wp:Text1>" .
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"<wp:Text2>" . $message . "</wp:Text2>" .
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"<wp:Param></wp:Param>" .
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"</wp:Toast>" .
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"</wp:Notification>";
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$result = send_push($device_url, [
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'X-WindowsPhone-Target: toast',
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'X-NotificationClass: ' . $priority,
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], $msg);
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return $result;
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}
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// General function to send the push notification via cURL
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function send_push($device_url, $headers, $msg)
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{
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $device_url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_HEADER, true);
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curl_setopt($ch, CURLOPT_HTTPHEADER, $headers + [
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'Content-Type: text/xml',
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'charset=utf-8',
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'Accept: application/*',
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]
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);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $msg);
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$output = curl_exec($ch);
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curl_close($ch);
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// if we received "Expired" from Microsoft server we will delete the obsolete device-URL
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// and log this fact
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$subscriptionStatus = get_header_value($output, 'X-SubscriptionStatus');
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if ($subscriptionStatus == "Expired") {
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DI::pConfig()->set(local_user(), 'windowsphonepush', 'device_url', "");
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Logger::notice("ERROR: the stored Device-URL " . $device_url . "returned an 'Expired' error, it has been deleted now.");
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}
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// the notification status shall be returned to windowsphonepush_cron (will
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// update settings if 'Received' otherwise keep old value in settings (on QueuedFull. Suppressed, N/A, Dropped)
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$notificationStatus = get_header_value($output, 'X-NotificationStatus');
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return $notificationStatus;
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}
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// helper function to receive statuses from webresponse of Microsoft server
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function get_header_value($content, $header)
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{
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return preg_match_all("/$header: (.*)/i", $content, $match) ? $match[1][0] : "";
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}
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/* reading information from url and deciding which function to start
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* show_settings = delivering settings to check
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* update_settings = set the device_url
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* update_counterunseen = set counter for unseen elements to zero
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*/
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function windowsphonepush_content(App $a)
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{
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// Login with the specified Network credentials (like in api.php)
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windowsphonepush_login($a);
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$path = DI::args()->getArgv()[0];
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$path2 = DI::args()->getArgv()[1];
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if ($path == "windowsphonepush") {
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switch ($path2) {
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case "show_settings":
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windowsphonepush_showsettings($a);
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exit();
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break;
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case "update_settings":
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$ret = windowsphonepush_updatesettings($a);
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header("Content-Type: application/json; charset=utf-8");
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echo json_encode(['status' => $ret]);
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exit();
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break;
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case "update_counterunseen":
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$ret = windowsphonepush_updatecounterunseen();
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header("Content-Type: application/json; charset=utf-8");
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echo json_encode(['status' => $ret]);
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exit();
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break;
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default:
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echo "Fehler";
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}
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}
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}
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// return settings for windowsphonepush addon to be able to check them in WP app
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function windowsphonepush_showsettings()
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{
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if (!local_user()) {
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return;
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}
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$enable = DI::pConfig()->get(local_user(), 'windowsphonepush', 'enable');
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$device_url = DI::pConfig()->get(local_user(), 'windowsphonepush', 'device_url');
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$senditemtext = DI::pConfig()->get(local_user(), 'windowsphonepush', 'senditemtext');
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$lastpushid = DI::pConfig()->get(local_user(), 'windowsphonepush', 'lastpushid');
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$counterunseen = DI::pConfig()->get(local_user(), 'windowsphonepush', 'counterunseen');
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$addonversion = "2.0";
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if (!$device_url) {
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$device_url = "";
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}
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if (!$lastpushid) {
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$lastpushid = 0;
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}
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header("Content-Type: application/json");
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echo json_encode(['uid' => local_user(),
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'enable' => $enable,
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'device_url' => $device_url,
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'senditemtext' => $senditemtext,
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'lastpushid' => $lastpushid,
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'counterunseen' => $counterunseen,
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'addonversion' => $addonversion]);
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}
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/* update_settings is used to transfer the device_url from WP device to the Friendica server
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* return the status of the operation to the server
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*/
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function windowsphonepush_updatesettings()
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{
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if (!local_user()) {
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return "Not Authenticated";
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}
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// no updating if user hasn't enabled the addon
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$enable = DI::pConfig()->get(local_user(), 'windowsphonepush', 'enable');
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if (!$enable) {
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return "Plug-in not enabled";
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}
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// check if sent url is empty - don't save and send return code to app
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$device_url = $_POST['deviceurl'];
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if ($device_url == "") {
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Logger::notice("ERROR: no valid Device-URL specified - client transferred '" . $device_url . "'");
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return "No valid Device-URL specified";
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}
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// check if sent url is already stored in database for another user, we assume that there was a change of
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// the user on the Windows Phone device and that device url is no longer true for the other user, so we
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// et the device_url for the OTHER user blank (should normally not occur as App should include User/server
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// in url request to Microsoft Push Notification server)
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$pconfigs = DBA::selectToArray('pconfig', ['uid'], ["`uid` != ? AND `cat` = ? AND `k` = ? AND `v` = ?", local_user(), 'windowsphonepush', 'device_url', $device_url]);
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foreach ($pconfigs as $rr) {
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DI::pConfig()->set($rr['uid'], 'windowsphonepush', 'device_url', '');
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Logger::notice("WARN: the sent URL was already registered with user '" . $rr['uid'] . "'. Deleted for this user as we expect to be correct now for user '" . local_user() . "'.");
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}
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DI::pConfig()->set(local_user(), 'windowsphonepush', 'device_url', $device_url);
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// output the successfull update of the device URL to the logger for error analysis if necessary
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Logger::notice("INFO: Device-URL for user '" . local_user() . "' has been updated with '" . $device_url . "'");
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return "Device-URL updated successfully!";
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}
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// update_counterunseen is used to reset the counter to zero from Windows Phone app
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function windowsphonepush_updatecounterunseen()
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{
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if (!local_user()) {
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return "Not Authenticated";
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}
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// no updating if user hasn't enabled the addon
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$enable = DI::pConfig()->get(local_user(), 'windowsphonepush', 'enable');
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if (!$enable) {
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return "Plug-in not enabled";
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}
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DI::pConfig()->set(local_user(), 'windowsphonepush', 'counterunseen', 0);
|
|
return "Counter set to zero";
|
|
}
|
|
|
|
/* helper function to login to the server with the specified Network credentials
|
|
* (mainly copied from api.php)
|
|
*/
|
|
function windowsphonepush_login(App $a)
|
|
{
|
|
if (!isset($_SERVER['PHP_AUTH_USER'])) {
|
|
Logger::info('API_login: ' . print_r($_SERVER, true));
|
|
header('WWW-Authenticate: Basic realm="Friendica"');
|
|
throw new UnauthorizedException('This api requires login');
|
|
}
|
|
|
|
$user_id = User::authenticate($_SERVER['PHP_AUTH_USER'], trim($_SERVER['PHP_AUTH_PW']));
|
|
|
|
if ($user_id) {
|
|
$record = DBA::selectFirst('user', [], ['uid' => $user_id]);
|
|
} else {
|
|
Logger::info('API_login failure: ' . print_r($_SERVER, true));
|
|
header('WWW-Authenticate: Basic realm="Friendica"');
|
|
throw new UnauthorizedException('This api requires login');
|
|
}
|
|
|
|
DI::auth()->setForUser($a, $record);
|
|
DI::session()->set('allow_api', true);
|
|
Hook::callAll('logged_in', $record);
|
|
}
|