From 6dc7723c738c8307369f2fcfd8feb0fd2ea703c1 Mon Sep 17 00:00:00 2001 From: yvesf Date: Thu, 24 Feb 2011 22:45:14 +0100 Subject: file-copy from previous development-repository --- .../java/de/dhbw/horb/calendar/ICSServlet.java | 39 +++++ .../horb/calendar/dualis/DualisConnection.java | 173 +++++++++++++++++++++ .../dhbw/horb/calendar/dualis/DualisException.java | 33 ++++ .../de/dhbw/horb/calendar/ics/AbstractICSType.java | 43 +++++ .../java/de/dhbw/horb/calendar/ics/VCalendar.java | 51 ++++++ .../java/de/dhbw/horb/calendar/ics/VEvent.java | 79 ++++++++++ .../java/de/dhbw/horb/calendar/ui/LoginWorker.java | 90 +++++++++++ .../de/dhbw/horb/calendar/ui/MyApplication.java | 161 +++++++++++++++++++ .../horb/calendar/ui/StundenplanComponent.java | 102 ++++++++++++ .../horb/calendar/util/AuthenticatedServlet.java | 84 ++++++++++ 10 files changed, 855 insertions(+) create mode 100644 src/main/java/de/dhbw/horb/calendar/ICSServlet.java create mode 100644 src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java create mode 100644 src/main/java/de/dhbw/horb/calendar/dualis/DualisException.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ics/VEvent.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java create mode 100644 src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java (limited to 'src/main/java/de') diff --git a/src/main/java/de/dhbw/horb/calendar/ICSServlet.java b/src/main/java/de/dhbw/horb/calendar/ICSServlet.java new file mode 100644 index 0000000..8a1be3e --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/ICSServlet.java @@ -0,0 +1,39 @@ +package de.dhbw.horb.calendar; + +import java.io.IOException; + +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +import de.dhbw.horb.calendar.dualis.DualisConnection; +import de.dhbw.horb.calendar.dualis.DualisException; +import de.dhbw.horb.calendar.ics.VCalendar; +import de.dhbw.horb.calendar.ics.VEvent; +import de.dhbw.horb.calendar.util.AuthenticatedServlet; + +public class ICSServlet extends AuthenticatedServlet { + private static final long serialVersionUID = 1L; + + public ICSServlet() { + setLoginRealm("Dualis Calendar Connector"); + } + + @Override + protected void doGet(HttpServletRequest request, + HttpServletResponse response, String username, String password) + throws IOException { + response.setHeader("Content-Type", "text/calendar; charset=utf-8"); + + VCalendar calendar = new VCalendar("DHBW Calendar"); + try { + DualisConnection connection = new DualisConnection(username, + password); + for (VEvent event : connection.getEvents()) { + calendar.add(event); + } + } catch (DualisException e) { + e.printStackTrace(); + } + response.getOutputStream().write(calendar.serialize().getBytes()); + } +} \ No newline at end of file diff --git a/src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java b/src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java new file mode 100644 index 0000000..f7bf369 --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java @@ -0,0 +1,173 @@ +package de.dhbw.horb.calendar.dualis; + +import java.io.IOException; +import java.text.ParseException; +import java.text.SimpleDateFormat; +import java.util.ArrayList; +import java.util.Date; +import java.util.List; +import java.util.regex.Pattern; + +import org.apache.commons.lang.StringUtils; + +import com.gargoylesoftware.htmlunit.ElementNotFoundException; +import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException; +import com.gargoylesoftware.htmlunit.WebClient; +import com.gargoylesoftware.htmlunit.html.DomAttr; +import com.gargoylesoftware.htmlunit.html.HtmlAnchor; +import com.gargoylesoftware.htmlunit.html.HtmlElement; +import com.gargoylesoftware.htmlunit.html.HtmlForm; +import com.gargoylesoftware.htmlunit.html.HtmlInput; +import com.gargoylesoftware.htmlunit.html.HtmlPage; + +import de.dhbw.horb.calendar.dualis.DualisException.DualisAuthenticationException; +import de.dhbw.horb.calendar.dualis.DualisException.DualisScrapingException; +import de.dhbw.horb.calendar.ics.VEvent; + +public class DualisConnection { + public static final String DUALIS_URL = "https://dualis.dhbw.de/scripts/mgrqcgi?APPNAME=CampusNet&PRGNAME=EXTERNALPAGES&ARGUMENTS=-N000000000000001,-N,-Awelcome"; + + private final String username; + private final String password; + + /** + * Baut eine Verbindung mit Dualis auf und führt einen Login durch + * + * @param username + * Dualis Benutzername + * @param password + * Dualis Password + * @throws FailingHttpStatusCodeException + * @throws IOException + * @throws DualisScrapingException + * @throws DualisAuthenticationException + */ + public DualisConnection(final String username, final String password) { + this.username = username; + this.password = password; + } + + @SuppressWarnings("deprecation") + public List getEvents() throws FailingHttpStatusCodeException, + IOException, DualisScrapingException, DualisAuthenticationException { + HtmlPage page, loginPage; + final HtmlForm loginForm; + final HtmlInput usernameField, passwordField, submitButton; + final WebClient webClient = new WebClient(); + final List events = new ArrayList(); + + webClient.setJavaScriptEnabled(false); + loginPage = webClient.getPage(DUALIS_URL); + try { + loginForm = loginPage.getFormByName("cn_loginForm"); + } catch (ElementNotFoundException e) { + throw new DualisException.DualisScrapingException( + "Fehler beim Suchen des Login Formular auf der Startseite mit Name 'cn_loginForm'", + e); + } + try { + usernameField = loginForm.getInputByName("usrname"); + } catch (ElementNotFoundException e) { + throw new DualisException.DualisScrapingException( + "Fehler beim Suchen des Username Input mit Name 'usrname'", + e); + } + usernameField.type(username); + try { + passwordField = loginForm.getInputByName("pass"); + } catch (ElementNotFoundException e) { + throw new DualisException.DualisScrapingException( + "Fehler beim Suchen des Password Input mit Name 'pass'", e); + } + passwordField.type(password); + + try { + submitButton = loginForm.getInputByValue("Anmelden"); + } catch (ElementNotFoundException e) { + throw new DualisException.DualisScrapingException( + "Fehler beim Suchen des Login Submit Buttons mit Text 'Anmelden'", + e); + } + page = submitButton.click(); + HtmlAnchor anchorByText; + try { + anchorByText = page.getAnchorByText("Stundenplan"); + } catch (ElementNotFoundException e) { // Login failed + throw new DualisException.DualisAuthenticationException( + "Authentifizierung fehltgeschlagen", e); + } + page = anchorByText.click(); + + HtmlAnchor anchorMonat; + try { + anchorMonat = page.getAnchorByText("Monat"); + } catch (ElementNotFoundException e) { + throw new DualisException.DualisScrapingException( + "Link Studenplan 'Woche' nicht gefunden", e); + } + page = anchorMonat.click(); + + for (HtmlElement elem : page.getElementsByTagName("div")) { + if (!elem.getAttribute("class").equals("tbMonthDay")) + continue; + final Date day; + Object dayTitle = elem + .getFirstByXPath("div[@class='tbsubhead']/a/@title"); + if (dayTitle instanceof DomAttr) { + String value = ((DomAttr) dayTitle).getValue(); + try { + day = dateFormat.parse(value); + } catch (ParseException e) { + e.printStackTrace(); + continue; + } + } else { + System.err.println("kann datum nicht bestimmen"); + continue; + } + for (HtmlElement appLink : elem.getElementsByTagName("a")) { + if (!appLink.getAttribute("class").equals("apmntLink")) + continue; + // title="08:15 - 10:45 / HOR-121 / Open Source Systeme" + String desc = StringUtils.strip(appLink.getAttribute("title")); + java.util.regex.Matcher matcher = appLinkPattern.matcher(desc); + if (matcher.matches() && matcher.groupCount() == 4) { + String timeStart = matcher.group(1); + String timeEnd = matcher.group(2); + String room = matcher.group(3); + String title = matcher.group(4); + System.out.println(timeStart + "-" + timeEnd + "-" + room + + "-" + title + "-" + day); + int hStart = Integer.parseInt(timeStart.split(":")[0]); + int mStart = Integer.parseInt(timeStart.split(":")[1]); + int hEnd = Integer.parseInt(timeEnd.split(":")[0]); + int mEnd = Integer.parseInt(timeEnd.split(":")[1]); + Date start = (Date) day.clone(); + start.setHours(hStart); + start.setMinutes(mStart); + Date end = (Date) day.clone(); + end.setHours(hEnd); + end.setMinutes(mEnd); + VEvent event = new VEvent.Builder().dtstart(start) + .dtstamp(start).dtend(end).summary(title).description(title) + .location(room).status("CONFIRMED").build(); + events.add(event); + } else { + System.err.println("Skip: " + desc + " at day " + day); + } + } + } + + return events; + } + + // Parse Dates + private static final SimpleDateFormat dateFormat = new SimpleDateFormat( + "dd.MM.yyyy"); + + // Appointment Link Title + // example: 08:15 - 10:45 / HOR-121 / Open Source Systeme + private static final Pattern appLinkPattern = Pattern + .compile("(\\d{2}:\\d{2})\\s-\\s(\\d{2}:\\d{2})\\s\\/\\s(.+)\\s\\/\\s(.+)"); + +} \ No newline at end of file diff --git a/src/main/java/de/dhbw/horb/calendar/dualis/DualisException.java b/src/main/java/de/dhbw/horb/calendar/dualis/DualisException.java new file mode 100644 index 0000000..5f337a2 --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/dualis/DualisException.java @@ -0,0 +1,33 @@ +package de.dhbw.horb.calendar.dualis; + +public abstract class DualisException extends Exception { + public DualisException(String msg) { + super(msg); + } + + public DualisException(String msg, Throwable e) { + super(msg, e); + } + + private static final long serialVersionUID = 1L; + + public static class DualisAuthenticationException extends DualisException { + private static final long serialVersionUID = 1L; + + public DualisAuthenticationException(String msg, Throwable e) { + super(msg, e); + } + + public DualisAuthenticationException(String msg) { + super(msg); + } + } + + public static class DualisScrapingException extends DualisException { + private static final long serialVersionUID = 1L; + + public DualisScrapingException(String msg, Throwable e) { + super(msg, e); + } + } +} diff --git a/src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java b/src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java new file mode 100644 index 0000000..3b6019d --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java @@ -0,0 +1,43 @@ +package de.dhbw.horb.calendar.ics; + +import java.text.SimpleDateFormat; + +import org.apache.commons.lang.StringEscapeUtils; + +public abstract class AbstractICSType { + /** + * Serialisierert dieses Calenderteil. Dem Ergebnis Fehlt noch der vCalendar + * Header und Footer + * + */ + public abstract String serialize(); + + /** + * RFC says: + * 
+	 * FORM #2: DATE WITH UTC TIME
+	 * 
+	 *       The date with UTC time, or absolute time, is identified by a LATIN
+	 *       CAPITAL LETTER Z suffix character, the UTC designator, appended to
+	 *       the time value.  For example, the following represents January 19,
+	 *       1998, at 0700 UTC:
+	 * 
+	 *        19980119T070000Z
+	 * 
+	 *       The "TZID" property parameter MUST NOT be applied to DATE-TIME
+	 *       properties whose time values are specified in UTC.
+	 *
+ */ + public static SimpleDateFormat dateTimeFormat = new SimpleDateFormat( + "yyyyMMdd'T'HHmmss'Z'"); + + /** + * described in RFC section 3.3.11 + * + * @param text + * @return + */ + public static String escapeText(String text) { + return StringEscapeUtils.escapeJava(text); //XXX TODO + } +} diff --git a/src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java b/src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java new file mode 100644 index 0000000..fcf083a --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java @@ -0,0 +1,51 @@ +package de.dhbw.horb.calendar.ics; + +import java.util.ArrayList; +import java.util.List; + +public class VCalendar { + List icsObjects = new ArrayList(); + private final String title; + + public VCalendar(final String title) { + this.title = title; + } + + public void add(AbstractICSType ics) { + icsObjects.add(ics); + } + + /** + * + * @return + */ + public String serialize() { + final StringBuilder sb = new StringBuilder(); + // Einleiten des Kalenders + sb.append("BEGIN:VCALENDAR\n"); + // This property specifies the identifier for the product that created + // the iCalendar object. + sb.append("PRODID:-//DHBW Horb i08005//DHBW Calender 0.1//EN\n"); + // Datenformat version + sb.append("VERSION:2.0\n"); + // This property defines the calendar scale used for the + // calendar information specified in the iCalendar object. + sb.append("CALSCALE:GREGORIAN\n"); + // This property defines the iCalendar object method + // associated with the calendar object. + sb.append("METHOD:PUBLISH\n"); + /* Extensions */ + // + sb.append("X-WR-TIMEZONE:UTC\n"); + // Name des Kalenders + sb.append("X-WR-CALDESC:" + AbstractICSType.escapeText(title)+"\n"); + sb.append("X-WR-CALNAME:" + AbstractICSType.escapeText(title)+"\n"); + + // Elemente + for (AbstractICSType ics : icsObjects) { + sb.append(ics.serialize()); + } + sb.append("END:VCALENDAR\n"); + return sb.toString(); + } +} diff --git a/src/main/java/de/dhbw/horb/calendar/ics/VEvent.java b/src/main/java/de/dhbw/horb/calendar/ics/VEvent.java new file mode 100644 index 0000000..74f00ba --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/ics/VEvent.java @@ -0,0 +1,79 @@ +package de.dhbw.horb.calendar.ics; + +import java.util.Date; + +public class VEvent extends AbstractICSType { + public Date dtstamp = new Date(); + public Date dtstart = new Date(); + public Date dtend = new Date(); + public String status = ""; + public String summary = ""; + public String description = ""; + public String location = ""; + + /** + * {@inheritDoc}
+ *
+ * See RFC section 3.6.1 for VEVENT Specification + */ + @Override + public String serialize() { + final StringBuffer sb = new StringBuffer(); + sb.append("BEGIN:VEVENT\n"); + sb.append("DTSTART:" + dateTimeFormat.format(dtstart) + "\n"); + sb.append("DTEND:" + dateTimeFormat.format(dtend) + "\n"); + sb.append("DTSTAMP:" + dateTimeFormat.format(dtstamp) + "\n"); + sb.append("UID:vevent_" + dateTimeFormat.format(dtstamp) + "@dhbw.de\n"); + sb.append("CREATED:" + dateTimeFormat.format(new Date()) + "\n"); + sb.append("STATUS:" + escapeText(status) + "\n"); + sb.append("SUMMARY:" + escapeText(summary) + "\n"); + sb.append("DESCRIPTION:" + escapeText(description) + "\n"); + sb.append("LOCATION:" + escapeText(location) + "\n"); + sb.append("TRANSP:OPAQUE\n"); + sb.append("END:VEVENT\n"); + return sb.toString(); + } + + public static class Builder { + VEvent event = new VEvent(); + + public Builder dtstamp(Date dtstamp) { + event.dtstamp = dtstamp; + return this; + } + + public Builder dtstart(Date dtstart) { + event.dtstart = dtstart; + return this; + } + + public Builder dtend(Date dtend) { + event.dtend = dtend; + return this; + } + + public Builder summary(String summary) { + event.summary = summary; + return this; + } + + public Builder description(String description) { + event.description = description; + return this; + } + + public Builder location(String location) { + event.location = location; + return this; + } + + public VEvent build() { + return event; + } + + public Builder status(String status) { + event.status = status; + return this; + } + } +} diff --git a/src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java b/src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java new file mode 100644 index 0000000..aa2c9b7 --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java @@ -0,0 +1,90 @@ +package de.dhbw.horb.calendar.ui; + +import java.io.IOException; + +import com.gargoylesoftware.htmlunit.ElementNotFoundException; +import com.gargoylesoftware.htmlunit.WebClient; +import com.gargoylesoftware.htmlunit.html.HtmlForm; +import com.gargoylesoftware.htmlunit.html.HtmlInput; +import com.gargoylesoftware.htmlunit.html.HtmlPage; + +import de.dhbw.horb.calendar.dualis.DualisConnection; +import de.dhbw.horb.calendar.dualis.DualisException; +import de.dhbw.horb.calendar.dualis.DualisException.DualisAuthenticationException; + +class LoginWorker implements Runnable { + private final WebClient client; + private HtmlPage page = null; + private HtmlForm loginForm = null; + private HtmlInput usernameField; + private HtmlInput passwordField; + private HtmlInput submitButton; + private final String username; + private final String password; + private final LoginWorkerListener listener; + + public LoginWorker(final LoginWorkerListener listener, final String username, final String password) { + this.listener = listener; + this.username = username; + this.password = password; + + client = new WebClient(); + } + + private void step1() throws Exception { + page = client.getPage(DualisConnection.DUALIS_URL); + } + + private void step2() { + loginForm = page.getFormByName("cn_loginForm"); + usernameField = loginForm.getInputByName("usrname"); + passwordField = loginForm.getInputByName("pass"); + submitButton = loginForm.getInputByValue("Anmelden"); + } + + private void step3() throws IOException { + usernameField.type(username); + passwordField.type(password); + page = submitButton.click(); + } + + private void step4() throws DualisAuthenticationException { + try { + page.getAnchorByText("Stundenplan"); + } catch (ElementNotFoundException e) { + throw new DualisException.DualisAuthenticationException( + "Authentifizierung fehltgeschlagen", e); + } + } + + @Override + public void run() { + try { + listener.setProgress(0.2, "Lade Seite"); + step1(); + + listener.setProgress(0.4, "Analysiere Seite"); + step2(); + + listener.setProgress(0.6, "Sende Login"); + step3(); + + listener.setProgress(0.8, "Prüfe Login"); + step4(); + listener.setProgress(1.0, "Erfolgreich"); + + listener.success(username,password); + } catch (Exception e) { + e.printStackTrace(); + listener.error(e); + } + } + + public interface LoginWorkerListener { + public void setProgress(double d, String description); + + public void success(String username, String password); + + public void error(Exception e); + } +} \ No newline at end of file diff --git a/src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java b/src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java new file mode 100644 index 0000000..9a0f222 --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java @@ -0,0 +1,161 @@ +package de.dhbw.horb.calendar.ui; + +import com.vaadin.Application; +import com.vaadin.ui.Button; +import com.vaadin.ui.Button.ClickEvent; +import com.vaadin.ui.Button.ClickListener; +import com.vaadin.ui.FormLayout; +import com.vaadin.ui.Label; +import com.vaadin.ui.LoginForm; +import com.vaadin.ui.LoginForm.LoginEvent; +import com.vaadin.ui.LoginForm.LoginListener; +import com.vaadin.ui.ProgressIndicator; +import com.vaadin.ui.TabSheet; +import com.vaadin.ui.Window; + +import de.dhbw.horb.calendar.ui.LoginWorker.LoginWorkerListener; + +public class MyApplication extends Application { + private static final long serialVersionUID = 1L; + + @Override + public void init() { + setMainWindow(new MyMainWindow()); + } + + public static class MyMainWindow extends Window { + private static final long serialVersionUID = 1L; + private TabSheet tabSheet = new TabSheet(); + private LoginComponent loginComponent; + private StundenplanComponent stundenplanComponent; + private LogoutComponent logoutComponent; + private String password = ""; + private String username = ""; + { + { + loginComponent = new LoginComponent(this); + stundenplanComponent = new StundenplanComponent(this); + logoutComponent = new LogoutComponent(this); + } + } + + public MyMainWindow() { + super("DHBW Calendar"); + tabSheet.addTab(loginComponent, "Login", null); + addComponent(tabSheet); + } + + public void login(String username, String password) { + this.username = username; + this.password = password; + tabSheet.removeTab(tabSheet.getTab(loginComponent)); + + tabSheet.addTab(stundenplanComponent, "Stundenplan", null); + tabSheet.addTab(logoutComponent, "Logout", null); + } + + public void logout() { + this.username = this.password = ""; + tabSheet.removeTab(tabSheet.getTab(stundenplanComponent)); + tabSheet.removeTab(tabSheet.getTab(logoutComponent)); + + tabSheet.addTab(loginComponent, "Login", null); + } + + public String getUsername() { + return username; + } + + public String getPassword() { + return password; + } + } + + private static class LogoutComponent extends FormLayout { + private static final long serialVersionUID = 1L; + + private final MyMainWindow mainWindow; + + public LogoutComponent(MyMainWindow mainWindow) { + this.mainWindow = mainWindow; + Button logoutButton = new Button("Logout"); + logoutButton.addListener(new ClickListener() { + private static final long serialVersionUID = 1L; + + @Override + public void buttonClick(ClickEvent event) { + LogoutComponent.this.mainWindow.logout(); + } + }); + addComponent(logoutButton); + } + } + + private static class LoginComponent extends FormLayout { + private static final long serialVersionUID = 1L; + + private final MyMainWindow mainWindow; + private final DualisLoginForm loginForm; + private final Label labelDescription; + private final ProgressIndicator progressIndicator; + private final LoginWorkerListener loginWorkerListener; + { + { + loginForm = new DualisLoginForm(); + labelDescription = new Label(""); + + progressIndicator = new ProgressIndicator(); + progressIndicator.setVisible(false); + progressIndicator.setSizeFull(); + + loginWorkerListener = new LoginWorkerListener() { + + @Override + public void success(String username, String password) { + mainWindow.login(username, password); + labelDescription.setValue(""); + progressIndicator.setVisible(false); + loginForm.setVisible(true); + } + + @Override + public void setProgress(double d, String description) { + progressIndicator.setValue(new Float(d)); + labelDescription.setValue(description); + } + + @Override + public void error(Exception e) { + progressIndicator.setVisible(false); + labelDescription.setValue("Fehler: " + e.getMessage()); + loginForm.setVisible(true); + } + }; + } + } + + public LoginComponent(final MyMainWindow mainWindow) { + this.mainWindow = mainWindow; + + loginForm.addListener(new LoginListener() { + private static final long serialVersionUID = 1L; + + @Override + public void onLogin(LoginEvent event) { + new Thread(new LoginWorker(loginWorkerListener, event + .getLoginParameter("username"), event + .getLoginParameter("password"))).start(); + loginForm.setVisible(false); + progressIndicator.setVisible(true); + } + }); + addComponent(loginForm); + addComponent(labelDescription); + addComponent(progressIndicator); + } + } + + private static class DualisLoginForm extends LoginForm { + private static final long serialVersionUID = 1L; + } +} \ No newline at end of file diff --git a/src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java b/src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java new file mode 100644 index 0000000..ba3cc1c --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java @@ -0,0 +1,102 @@ +package de.dhbw.horb.calendar.ui; + +import java.util.Date; + +import com.vaadin.ui.Button; +import com.vaadin.ui.Button.ClickEvent; +import com.vaadin.ui.Button.ClickListener; +import com.vaadin.ui.Alignment; +import com.vaadin.ui.FormLayout; +import com.vaadin.ui.ProgressIndicator; +import com.vaadin.ui.Table; +import com.vaadin.ui.VerticalLayout; + +import de.dhbw.horb.calendar.dualis.DualisConnection; +import de.dhbw.horb.calendar.ics.VEvent; +import de.dhbw.horb.calendar.ui.MyApplication.MyMainWindow; + +public class StundenplanComponent extends FormLayout { + private static final long serialVersionUID = 1L; + + private ClickListener buttonFetchListener = new ClickListener() { + private static final long serialVersionUID = 1L; + + @Override + public void buttonClick(ClickEvent event) { + table.removeAllItems(); + table.setEnabled(false); + buttonFetch.setVisible(false); + StundenplanComponent.this.addComponentAsFirst(refresher); + + new Thread() { + public void run() { + DualisConnection dualisConnection = new DualisConnection( + myMainWindow.getUsername(), + myMainWindow.getPassword()); + try { + for (VEvent vevent : dualisConnection.getEvents()) { + synchronized (getApplication()) { + table.addItem(new Object[] { vevent.dtstart, + vevent.dtend, vevent.summary, + vevent.location }, + vevent.dtstart.getTime()); + } + } + } catch (Exception e) { + e.printStackTrace(); + table.addItem(new Object[] { new Date(), new Date(), + "Fehler", e.getMessage() }); + } + synchronized (getApplication()) { + buttonFetch.setVisible(true); + table.setEnabled(true); + StundenplanComponent.this.removeComponent(refresher); + } + }; + }.start(); + } + }; + + private final Button buttonFetch = new Button("Kalender holen", + buttonFetchListener); + + /** + * The Progress Indicator have no real sense. Its used to force the client + * to poll all 500ms for new events + */ + final ProgressIndicator refresher = new ProgressIndicator(); + { + { + refresher.setPollingInterval(500); + refresher.setSizeFull(); + } + } + + private final Table table = new Table("Stundenplan"); + { + { + table.setSizeFull(); + table.setSelectable(true); + table.addContainerProperty("begin", Date.class, ""); + table.addContainerProperty("end", Date.class, ""); + table.addContainerProperty("summary", String.class, ""); + table.addContainerProperty("location", String.class, ""); + } + } + + private final MyMainWindow myMainWindow; + + public StundenplanComponent(MyMainWindow myMainWindow) { + this.myMainWindow = myMainWindow; + + VerticalLayout layout = new VerticalLayout(); + layout.addComponent(buttonFetch); + layout.addComponent(table); + layout.setSizeFull(); + + addComponent(layout); + layout.setComponentAlignment( + buttonFetch, + Alignment.MIDDLE_CENTER); + } +} \ No newline at end of file diff --git a/src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java b/src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java new file mode 100644 index 0000000..47ca537 --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java @@ -0,0 +1,84 @@ +package de.dhbw.horb.calendar.util; + +import java.io.IOException; +import java.util.StringTokenizer; + +import javax.servlet.ServletException; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +import org.apache.commons.lang.StringEscapeUtils; + +import sun.misc.BASE64Decoder; + +public abstract class AuthenticatedServlet extends HttpServlet { + private static final long serialVersionUID = 1L; + + + private String loginRealm = "Servlet Login"; + + public void setLoginRealm(String loginRealm) { + this.loginRealm = loginRealm; + } + + public String getLoginRealm() { + return loginRealm; + } + + String[] getUsernamePassword(HttpServletRequest request) throws IOException { + String authHeader = request.getHeader("Authorization"); + if (authHeader != null) { + StringTokenizer st = new StringTokenizer(authHeader); + if (st.hasMoreTokens()) { + String basic = st.nextToken(); + if (basic.equalsIgnoreCase("Basic")) { + String credentials = st.nextToken(); + + // XXX fixme, dont use sun.misc + BASE64Decoder decoder = new BASE64Decoder(); + String userPass = new String( + decoder.decodeBuffer(credentials)); + + // The decoded string is in the form + // "userID:password". + int p = userPass.indexOf(":"); + if (p != -1) { + String username = userPass.substring(0, p).trim(); + String password = userPass.substring(p + 1).trim(); + String[] userPassword = new String[] { username, + password }; + if ("".equals(userPassword) || "".equals(password)) { + return null; + } else { + return new String[] { username, password }; + } + } + } + } + } + return null; + } + + void writeAuthenticationRequest(HttpServletResponse response) { + String realm = StringEscapeUtils.escapeJava(getLoginRealm()); + String s = "Basic realm=\"" + realm + "\""; + response.setHeader("WWW-Authenticate", s); + response.setStatus(401); + } + + @Override + protected void doGet(HttpServletRequest request, + HttpServletResponse response) throws ServletException, IOException { + + String[] usernamePassword = getUsernamePassword(request); + if (usernamePassword == null) { + writeAuthenticationRequest(response); + return; + } + doGet(request, response, usernamePassword[0], usernamePassword[1]); + } + + protected abstract void doGet(HttpServletRequest request, + HttpServletResponse response, String username, String password) throws ServletException, IOException; +} -- cgit v1.2.1