From 304af8e8f015ac896ad0683c6407a3269e981d97 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philip=20H=C3=A4usler?= <msquare@notrademark.de>
Date: Tue, 11 Oct 2011 19:47:49 +0200
Subject: [PATCH] #27 ical export, beginn

---
 db/update.sql                    | 14 +++++++++++++
 includes/pages/user_ical.php     | 34 ++++++++++++++++++++++++++++++++
 includes/pages/user_myshifts.php |  3 ++-
 public/index.php                 |  6 +++++-
 4 files changed, 55 insertions(+), 2 deletions(-)
 create mode 100644 db/update.sql
 create mode 100644 includes/pages/user_ical.php

diff --git a/db/update.sql b/db/update.sql
new file mode 100644
index 00000000..c2ebf441
--- /dev/null
+++ b/db/update.sql
@@ -0,0 +1,14 @@
+/* Update für #27, iCal-Export */
+ALTER TABLE `User` ADD `ical_key` VARCHAR( 32 ) NOT NULL ,
+ADD UNIQUE (
+`ical_key`
+);
+
+INSERT INTO `engelsystem`.`Privileges` (
+`id` ,
+`name` ,
+`desc`
+)
+VALUES (
+NULL , 'ical', 'iCal Schicht Export'
+);
\ No newline at end of file
diff --git a/includes/pages/user_ical.php b/includes/pages/user_ical.php
new file mode 100644
index 00000000..181a7781
--- /dev/null
+++ b/includes/pages/user_ical.php
@@ -0,0 +1,34 @@
+<?php
+
+
+// Öffentlich zugängliche Funktion zum Abrufen von iCal-Exports der eigenen Schichten
+function user_ical() {
+	if (isset ($_REQUEST['key']) && preg_match("/^[0-9a-f]{32}$/", $_REQUEST['key']))
+		$key = $_REQUEST['key'];
+	else
+		die("Missing key.");
+
+	$user = sql_select("SELECT * FROM `User` WHERE `ical_key`='" . sql_escape($key) . "' LIMIT 1");
+	if (count($user) == 0)
+		die("Key invalid.");
+
+	$user = $user[0];
+
+	$shifts = sql_select("SELECT * FROM `ShiftEntry` JOIN `Shifts` ON (`ShiftEntry`.`SID` = `Shifts`.`SID`) JOIN `Room` ON (`Shifts`.`RID` = `Room`.`RID`) WHERE `UID`=" . sql_escape($user['UID']) . " ORDER BY `start`");
+
+	header("Content-Type: text/calendar");
+	echo "BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//-//Engelsystem//DE\nCALSCALE:GREGORIAN\n";
+	foreach ($shifts as $shift) {
+		echo "BEGIN:VEVENT\n";
+		echo "UID:" . md5($shift['start'] . $shift['end'] . $shift['name']) . "\n";
+		echo "SUMMARY:" . str_replace("\n", "\\n", $shift['name']) . "\n";
+		echo "DESCRIPTION:" . str_replace("\n", "\\n", $shift['Comment']) . "\n";
+		echo "DTSTART;TZID=Europe/Berlin:" . date("Ymd\THis", $shift['start']) . "\n";
+		echo "DTEND;TZID=Europe/Berlin:" . date("Ymd\THis", $shift['end']) . "\n";
+		echo "LOCATION:" . $shift['Name'] . "\n";
+		echo "END:VEVENT\n";
+	}
+	echo "END:VCALENDAR\n";
+	die();
+}
+?>
diff --git a/includes/pages/user_myshifts.php b/includes/pages/user_myshifts.php
index 4dc4cc81..60c5bba0 100644
--- a/includes/pages/user_myshifts.php
+++ b/includes/pages/user_myshifts.php
@@ -1,7 +1,7 @@
 <?php
 
 
-//
+// Zeigt die Schichten an, die ein Benutzer belegt
 function user_myshifts() {
 	global $LETZTES_AUSTRAGEN;
 	global $user, $privileges;
@@ -44,6 +44,7 @@ function user_myshifts() {
 			header("Location: " . page_link_to('user_myshifts'));
 	}
 	$shifts = sql_select("SELECT * FROM `ShiftEntry` JOIN `Shifts` ON (`ShiftEntry`.`SID` = `Shifts`.`SID`) JOIN `Room` ON (`Shifts`.`RID` = `Room`.`RID`) WHERE `UID`=" . sql_escape($user['UID']) . " ORDER BY `start`");
+	
 	$html = "";
 	foreach ($shifts as $shift) {
 		if (time() > $shift['end'])
diff --git a/public/index.php b/public/index.php
index 2a5a273b..1a58852b 100644
--- a/public/index.php
+++ b/public/index.php
@@ -34,8 +34,12 @@ if (isset ($_REQUEST['p']) && preg_match("/^[a-z0-9_]*$/i", $_REQUEST['p']) && s
 $title = Get_Text($p);
 $content = "";
 
+if ($p == "ical") {
+	require_once ('includes/pages/user_ical.php');
+	user_ical();
+}
 // Recht dafür vorhanden?
-if (in_array($p, $privileges)) {
+elseif (in_array($p, $privileges)) {
 	if ($p == "news") {
 		require_once ('includes/pages/user_news.php');
 		$content = user_news();