474 lines
18 KiB
PHP
474 lines
18 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: 1.0
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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 plugin is installed, the system calls the plugin
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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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*/
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function windowsphonepush_install() {
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/**
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*
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* Our plugin 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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*/
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register_hook('cron', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_cron');
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/**
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*
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* Then we'll attach into the plugin 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 plugin and
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* define whether he allows pushing first characters of item text
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*
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*/
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register_hook('plugin_settings', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_settings');
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register_hook('plugin_settings_post', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_settings_post');
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logger("installed windowsphonepush");
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}
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function windowsphonepush_uninstall() {
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/**
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*
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* uninstall unregisters any hooks created with register_hook
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* during install. Don't delete data in table `pconfig`.
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*
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*/
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unregister_hook('cron', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_cron');
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unregister_hook('plugin_settings', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_settings');
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unregister_hook('plugin_settings_post', 'addon/windowsphonepush/windowsphonepush.php', 'windowsphonepush_settings_post');
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logger("removed 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 $_POST array.
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* We will make sure we've got a valid user account
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* and if so set our configuration setting for this person.
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*
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*/
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function windowsphonepush_settings_post($a,$post) {
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if(! local_user() || (! x($_POST,'windowsphonepush-submit')))
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return;
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set_pconfig(local_user(),'windowsphonepush','enable',intval($_POST['windowsphonepush']));
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set_pconfig(local_user(),'windowsphonepush','senditemtext',intval($_POST['windowsphonepush-senditemtext']));
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info( t('WindowsPhonePush settings updated.') . EOL);
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}
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/**
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*
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* Called from the Plugin Setting form.
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* Add our own settings info to the page.
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*
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*/
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function windowsphonepush_settings(&$a,&$s) {
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if(! local_user())
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return;
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/* Add our stylesheet to the page so we can make our settings look nice */
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$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/windowsphonepush/windowsphonepush.css' . '" media="all" />' . "\r\n";
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/* Get the current state of our config variables */
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$enabled = get_pconfig(local_user(),'windowsphonepush','enable');
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$checked_enabled = (($enabled) ? ' checked="checked" ' : '');
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$senditemtext = get_pconfig(local_user(), 'windowsphonepush', 'senditemtext');
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$checked_senditemtext = (($senditemtext) ? ' checked="checked" ' : '');
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$device_url = get_pconfig(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>' . 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">' . t('Enable WindowsPhonePush Plugin') . '</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">' . 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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$s .= '<div class="settings-submit-wrapper" ><input type="submit" id="windowsphonepush-submit" name="windowsphonepush-submit" class="settings-submit" value="' . t('Save Settings') . '" /></div><div class="clear"></div>';
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/* provide further read-only information concerning the addon (useful for */
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$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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/**
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*
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* Cron function used to regularly check all users on the server with active windowsphonepushplugin 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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*/
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function windowsphonepush_cron() {
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// retrieve all UID's for which the plugin windowsphonepush is enabled and loop through every user
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$r = q("SELECT * FROM `pconfig` WHERE `cat` = 'windowsphonepush' AND `k` = 'enable' AND `v` = 1");
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if(count($r)) {
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foreach($r as $rr) {
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// load stored information for the user-id of the current loop
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$device_url = get_pconfig($rr['uid'], 'windowsphonepush', 'device_url');
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$lastpushid = get_pconfig($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 plugin is enabled --> write info to Logger
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logger("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 = q("SELECT count(`id`) as count, max(`id`) as max FROM `item` WHERE `unseen` = 1 AND `uid` = %d",
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intval($rr['uid'])
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);
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// send number of unseen items to the device (the number will be displayed on Start screen until
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// App will be started by user) - this update will be sent every 10 minutes to update the number to 0 if
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// user has loaded the timeline through app or website
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$res_tile = send_tile_update($device_url, "", $count[0]['count'], "");
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switch (trim($res_tile)) {
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case "Received":
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// ok, count has been pushed
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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("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("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("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[0]['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 = get_pconfig($rr['uid'], 'windowsphonepush', 'senditemtext');
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if ($senditemtext == 1) {
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// load item with the max id
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$item = q("SELECT `author-name` as author, `body` as body FROM `item` where `id` = %d",
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intval($count[0]['max'])
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);
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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 = $item[0]['author'];
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$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 = $item[0]['body'];
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if (substr($body, 0, 4) == "[url")
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$body = "URL/Image ...";
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else {
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require_once('include/bbcode.php');
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require_once("include/html2plain.php");
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$body = bbcode($body, false, false, 2, true);
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$body = html2plain($body, 0);
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$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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set_pconfig($rr['uid'], 'windowsphonepush', 'lastpushid', $count[0]['max']);
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}
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}
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}
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}
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}
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}
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/*
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*
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* Tile push notification change the number in the icon of the App in Start Screen of
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* a Windows Phone Device, Image could be changed, not used for App "Friendica Mobile"
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*
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*/
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function send_tile_update($device_url, $image_url, $count, $title, $priority = 1) {
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$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, array(
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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 $result;
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}
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/*
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*
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* Toast push notification send information to the top of the display
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* if the user is not currently using the Friendica Mobile App, however
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* there is only one line for displaying the information
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*
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*/
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function send_toast($device_url, $title, $message, $priority = 2) {
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$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, array(
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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 $result;
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}
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/*
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*
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* General function to send the push notification via cURL
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*
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*/
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function send_push($device_url, $headers, $msg) {
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$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($ch, CURLOPT_HTTPHEADER,
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$headers + array(
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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 Novartis 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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set_pconfig(local_user(),'windowsphonepush','device_url', "");
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logger("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 $notificationStatus;
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}
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/*
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* helper function to receive statuses from webresponse of Microsoft server
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*/
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function get_header_value($content, $header) {
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return preg_match_all("/$header: (.*)/i", $content, $match) ? $match[1][0] : "";
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}
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/*
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*
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* reading information from url and deciding which function to start
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* show_settings = delivering settings to check
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* update_settings = set the device_url
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*
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*/
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function windowsphonepush_content(&$a) {
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// Login with the specified Network credentials (like in api.php)
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windowsphonepush_login();
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$path = $a->argv[0];
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$path2 = $a->argv[1];
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if ($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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killme();
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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(array('status' => $ret));
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killme();
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break;
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default:
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echo "Fehler";
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}
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}
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}
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/*
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* return settings for windowsphonepush addon to be able to check them in WP app
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*/
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function windowsphonepush_showsettings(&$a) {
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if(! local_user())
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return;
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$enable = get_pconfig(local_user(), 'windowsphonepush', 'enable');
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$device_url = get_pconfig(local_user(), 'windowsphonepush', 'device_url');
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$senditemtext = get_pconfig(local_user(), 'windowsphonepush', 'senditemtext');
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$lastpushid = get_pconfig(local_user(), 'windowsphonepush', 'lastpushid');
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if (!$device_url)
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$device_url = "";
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if (!$lastpushid)
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$lastpushid = 0;
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header ("Content-Type: application/json");
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echo json_encode(array('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' => $lastpushid));
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}
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/*
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* update_settings is used to transfer the device_url from WP device to the Friendica server
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* return the status of the operation to the server
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*/
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function windowsphonepush_updatesettings(&$a) {
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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 plugin
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$enable = get_pconfig(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("ERROR: no valid Device-URL specified - client transferred '" . $device_url . "'");
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return "No valid Device-URL specified";
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}
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// check if sent url is already stored in database for another user, we assume that there was a change of
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// the user on the Windows Phone device and that device url is no longer true for the other user, so we
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// et the device_url for the OTHER user blank (should normally not occur as App should include User/server
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// in url request to Microsoft Push Notification server)
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$r = q("SELECT * FROM `pconfig` WHERE `uid` <> " . local_user() . " AND
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`cat` = 'windowsphonepush' AND
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`k` = 'device_url' AND
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`v` = '" . $device_url . "'");
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if(count($r)) {
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foreach($r as $rr) {
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set_pconfig($rr['uid'], 'windowsphonepush', 'device_url', '');
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logger("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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}
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set_pconfig(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("INFO: Device-URL for user '" . local_user() . "' has been updated with '" . $device_url . "'");
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return "Device-URL updated successfully!";
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}
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/*
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* helper function to login to the server with the specified Network credentials
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* (mainly copied from api.php)
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*/
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function windowsphonepush_login() {
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if (!isset($_SERVER['PHP_AUTH_USER'])) {
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logger('API_login: ' . print_r($_SERVER, true), LOGGER_DEBUG);
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header('WWW-Authenticate: Basic realm="Friendica"');
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header('HTTP/1.0 401 Unauthorized');
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die('This api requires login');
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}
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$user = $_SERVER['PHP_AUTH_USER'];
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$encrypted = hash('whirlpool',trim($_SERVER['PHP_AUTH_PW']));
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// check if user specified by app is available in the user table
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$r = q("SELECT * FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
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AND `password` = '%s' AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1",
|
|
dbesc(trim($user)),
|
|
dbesc(trim($user)),
|
|
dbesc($encrypted)
|
|
);
|
|
|
|
if(count($r)){
|
|
$record = $r[0];
|
|
} else {
|
|
logger('API_login failure: ' . print_r($_SERVER,true), LOGGER_DEBUG);
|
|
header('WWW-Authenticate: Basic realm="Friendica"');
|
|
header('HTTP/1.0 401 Unauthorized');
|
|
die('This api requires login');
|
|
}
|
|
|
|
require_once('include/security.php');
|
|
authenticate_success($record); $_SESSION["allow_api"] = true;
|
|
call_hooks('logged_in', $a->user);
|
|
}
|
|
|