add support for showing personal schedule

This creates a class that can automate the logic of logging
into summit.linaro.org and getting the user's key which is
used in the url to download their iCal schedule

6 files changed, 364 insertions, 0 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 92392a9..2c3c1e9 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -49,6 +49,15 @@
         <activity android:name=".ScheduleItemActivity"
                   android:label="@string/schedule_item">            
         </activity>
+        <activity android:name=".MyScheduleActivity"
+                  android:label="@string/schedule_mine"
+                  android:configChanges="orientation|keyboardHidden" >
+            <intent-filter>
+                <action android:name="org.linaro.connect.MY_SCHEDULE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:scheme="http"/>
+            </intent-filter>            
+        </activity>
 
     </application>
 </manifest>
\ No newline at end of file
diff --git a/res/layout/my_schedule_unconfigured.xml b/res/layout/my_schedule_unconfigured.xml
new file mode 100644
index 0000000..6d9ef82
--- /dev/null
+++ b/res/layout/my_schedule_unconfigured.xml
@@ -0,0 +1,84 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+		android:layout_width="fill_parent"
+		android:layout_height="fill_parent"
+		android:orientation="vertical"
+		android:background="@color/main_bg"
+		android:paddingLeft="5px"
+>
+    
+    <TextView
+		android:layout_height="wrap_content"
+		android:layout_width="fill_parent"
+		android:textSize="14sp"
+		android:textStyle="bold"
+		android:gravity="center"
+		android:text="@string/my_schedule_lp"				
+	/>
+	
+	<TextView
+		android:layout_height="wrap_content"
+		android:layout_width="fill_parent"
+		android:text="@string/my_schedule_user"				
+	/>
+	<EditText
+		android:id="@+id/my_schedule_user"
+		android:layout_height="wrap_content"
+		android:layout_width="fill_parent"
+	/>
+	<TextView
+		android:layout_height="wrap_content"
+		android:layout_width="fill_parent"
+		android:text="@string/my_schedule_pass"				
+	/>
+	<EditText
+		android:id="@+id/my_schedule_pass"
+		android:layout_height="wrap_content"
+		android:layout_width="fill_parent"
+		android:inputType="textPassword"
+	/>
+	
+	<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+		android:layout_width="fill_parent"
+		android:layout_height="wrap_content"
+		android:orientation="horizontal"
+	>
+		<TextView
+			android:id="@+id/my_schedule_status"
+			android:layout_height="wrap_content"
+			android:layout_width="fill_parent"
+			android:layout_weight="2"
+			android:layout_gravity="center"
+		/>
+		<Button 
+			android:id="@+id/my_schedule_login"
+			android:layout_height="wrap_content"
+			android:layout_width="fill_parent"
+			android:layout_weight="3"
+			android:layout_gravity="right"			
+			android:text="@string/my_schedule_login"
+		/>
+	</LinearLayout>
+
+	<TextView
+		android:layout_height="wrap_content"
+		android:layout_width="fill_parent"
+		android:textSize="14sp"
+		android:textStyle="bold"		
+		android:text="@string/my_schedule_login_about"				
+	/>
+	<TextView
+		android:layout_height="wrap_content"
+		android:layout_width="fill_parent"
+		android:background="@drawable/rounded"
+		android:paddingLeft="5px"
+		android:textColor="@color/linaro_green"
+		android:text="@string/my_schedule_info"		
+	/>
+
+    <WebView 
+        android:id="@+id/my_schedule_webview"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+    />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index d3fb3b3..78057a8 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -3,4 +3,17 @@
 	<string name="app_name">Linaro Connect</string>
 	<string name="posting_refresh">Refresh</string>
 	<string name="schedule_item">Linaro Connect - Session</string>
+	
+	<string name="schedule_mine">Linaro Connect - My Schedule</string>
+	<string name="my_schedule_lp">Launchpad Login</string>
+	<string name="my_schedule_user">Email:</string>
+	<string name="my_schedule_pass">Password:</string>
+	<string name="my_schedule_info">In order to access your schedule we\'ll need 
+		to log into Launchpad one time. This will give the app a key that it can
+		retrieve your schedule with. No personal information will be saved.
+	</string>
+	<string name="my_schedule_login_about">About</string>
+	<string name="my_schedule_login">Log In</string>
+	<string name="my_schedule_login_busy">Authorizing...</string>
+	<string name="my_schedule_login_failed">Login failed! Try Again.</string>
 </resources>
diff --git a/src/org/linaro/connect/MyScheduleActivity.java b/src/org/linaro/connect/MyScheduleActivity.java
new file mode 100644
index 0000000..8de22dd
--- /dev/null
+++ b/src/org/linaro/connect/MyScheduleActivity.java
@@ -0,0 +1,118 @@
+package org.linaro.connect;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.SharedPreferences.Editor;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.view.View;
+import android.view.Window;
+import android.webkit.WebView;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+/**
+ * This is a dual-purpose activity. If the user has never used it or logged
+ * into summit, then it prompts them for authentication information.
+ *
+ * Once we have the secret key we need, its just a pass-through that launches
+ * the ScheduleActivty with the proper URL.
+ */
+public class MyScheduleActivity extends Activity{
+
+	private Button mLoginBtn;
+	private TextView mStatus;
+	private OpenIDLogin mOil;
+
+	private String mKeyName;
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
+		super.onCreate(savedInstanceState);
+
+		//we use the url of the event as keyname, so uds-p, uds-o will each
+		//have their own key
+		mKeyName = getIntent().getDataString();
+
+		String secret = getPreferences(MODE_PRIVATE).getString(mKeyName, null);
+		if( secret != null )
+			launchRealCalendar(secret);
+		else
+			onCreateUnconfigured(savedInstanceState);
+	}
+
+	protected void onCreateUnconfigured(Bundle savedInstanceState) {
+		setContentView(R.layout.my_schedule_unconfigured);
+
+		final WebView wv = (WebView)findViewById(R.id.my_schedule_webview);
+		wv.setVisibility(View.GONE);
+		mOil = new OpenIDLogin(getIntent().getDataString(), wv);
+
+		mStatus = (TextView)findViewById(R.id.my_schedule_status);
+
+		mLoginBtn = (Button)findViewById(R.id.my_schedule_login);
+		mLoginBtn.setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				String user = getInput(R.id.my_schedule_user);
+				String pass = getInput(R.id.my_schedule_pass);
+
+				setProgressBarIndeterminateVisibility(true);
+				mLoginBtn.setEnabled(false);
+				mLoginBtn.setText(R.string.my_schedule_login_busy);
+
+				mOil.login(user, pass, mHandler);
+			}
+		});
+	}
+
+	private String getInput(int id) {
+		EditText t = (EditText)findViewById(id);
+		return t.getText().toString();
+	}
+
+	private Uri getICalUri(String key) {
+		String url = getIntent().getDataString()+"participant/my_schedule_"+key+".ical";
+		return Uri.parse(url);
+	}
+
+	private void launchRealCalendar(String key) {
+		Intent cal = new Intent("org.linaro.connect.SCHEDULE", getICalUri(key));
+		cal.putExtra(JSONLayoutItem.INTENT_LABEL, "My Schedule");
+		cal.putExtra(ScheduleActivity.INTENT_CACHENAME, "my-schedule");
+		startActivity(cal);
+		finish();
+	}
+
+	Handler mHandler = new Handler() {
+		@Override
+		public void handleMessage(Message msg) {
+			int percent = msg.getData().getInt(OpenIDLogin.STATUS, -1);
+			if( percent != -1 ) {
+				mStatus.setText("" + percent + "% ...");
+				return;
+			}
+
+			//the login has succeeded or failed
+			setProgressBarIndeterminateVisibility(false);
+			mLoginBtn.setText(R.string.my_schedule_login);
+
+			String token = msg.getData().getString(OpenIDLogin.SECRET_KEY);
+			if( token == null ) {
+				mStatus.setText(R.string.my_schedule_login_failed);
+				mLoginBtn.setEnabled(true);
+				return;
+			}
+
+			//the login succeed
+			Editor ed = getPreferences(MODE_PRIVATE).edit();
+			ed.putString(mKeyName, token);
+			ed.commit();
+			launchRealCalendar(token);
+		}
+	};
+}
diff --git a/src/org/linaro/connect/OpenIDLogin.java b/src/org/linaro/connect/OpenIDLogin.java
new file mode 100644
index 0000000..7326625
--- /dev/null
+++ b/src/org/linaro/connect/OpenIDLogin.java
@@ -0,0 +1,134 @@
+package org.linaro.connect;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.util.Log;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+
+/**
+ * This class uses some JavaScript trickery via the android webview in order
+ * to perform an openid login to summit.linaro.org. We need to get the key
+ * that is used for a users personal ical schedule.
+ */
+public class OpenIDLogin {
+
+	public final static String SECRET_KEY = "SECRET";
+	public final static String STATUS = "STATUS";
+
+	private final WebView mWebView;
+	private String mOnSetUserPassJS;
+	private Handler mHandler;
+
+	private boolean mLoginHit = false;
+
+	public OpenIDLogin(final String destinationURL, WebView v) {
+		mWebView = v;
+
+		v.getSettings().setJavaScriptEnabled(true);
+		v.getSettings().setDatabaseEnabled(false);
+		v.getSettings().setSaveFormData(false);
+		v.getSettings().setSavePassword(false);
+
+		v.addJavascriptInterface(new JavaScriptInterface(), "ANDROID");
+		v.setWebViewClient(new WebViewClient() {
+			@Override
+			public void onPageFinished(WebView view, String url) {
+				// inject the proper js script into what we are loading
+				if(url.equals(destinationURL)) {
+					mWebView.loadUrl(onSummitLoggedIn);
+					sendStatus(90);
+				}
+				else if( url.equals("http://summit.linaro.org/openid/login/?next=") ) {
+					mWebView.loadUrl(onOpenidRedirect);
+					sendStatus(30);
+				}
+				else if( url.startsWith("https://login.launchpad.net/") ) {
+					if(mLoginHit) {
+						//this is the second time we hit this page. this means
+						//the login failed
+						sendStatus(90);
+						sendToken(null);
+						return;
+					}
+
+					mLoginHit = true;
+					mWebView.loadUrl(mOnSetUserPassJS);
+					sendStatus(60);
+				}
+				else {
+					Log.w(LinaroConnect.TAG, "unknown URL: " + url);
+					sendToken(null); //tell the caller to stop waiting
+				}
+			}
+		});
+	}
+
+	//launches a login in a background thread
+	public void login(String user, String pass, Handler h) {
+		mOnSetUserPassJS = String.format(SETUSERPASS_JS, new Object[]{user, pass});
+		mHandler = h;
+		mLoginHit = false;
+		sendStatus(0);
+		mWebView.loadUrl("http://summit.linaro.org/openid/login?next=");
+	}
+
+	private void sendToken(String token) {
+		Bundle b = new Bundle();
+		b.putString(SECRET_KEY, token);
+
+		Message m = mHandler.obtainMessage();
+		m.setData(b);
+		m.sendToTarget();
+	}
+
+	private void sendStatus(int percent) {
+		Bundle b = new Bundle();
+		b.putInt(STATUS, percent);
+
+		Message m = mHandler.obtainMessage();
+		m.setData(b);
+		m.sendToTarget();
+	}
+
+	class JavaScriptInterface {
+		final static String NEEDLE = "participant/my_schedule_";
+
+		public void onOpenidRedirect() {
+		}
+
+		/**
+		 * Called when we are actually logged into summit with the content of
+		 * the page. We search the page for the key used to download the
+		 * user's ical schedule
+		 */
+		public void onSummitLoggedIn(String html) {
+			int idx = html.indexOf(NEEDLE);
+			String token = null;
+			if(idx > 0) {
+				idx+= NEEDLE.length();
+				int idx2 = html.indexOf(".ical", idx);
+				if( idx2 > 0 )
+					token = html.substring(idx, idx2);
+			}
+			sendToken(token);
+		}
+	}
+
+	/**
+	 * This is the JavaScript that we use to automatically fill in the login
+	 * form on login.launchpad.net
+	 */
+	private final static String SETUSERPASS_JS = "javascript:(function() { " +
+			"document.forms[0].elements[1].value = '%s'; " +
+			"document.forms[0].elements[2].value = '%s'; " +
+			"document.forms[0].submit(); " +
+			"})()";
+
+	/** not currently used */
+	private static String onOpenidRedirect = "javascript:window.ANDROID.onOpenidRedirect()";
+	/** used to get the HTML of the page we are actually looking for*/
+	private static String onSummitLoggedIn = "javascript:window.ANDROID.onSummitLoggedIn(document.getElementsByTagName('body')[0].innerHTML)";
+
+}
diff --git a/src/org/linaro/connect/ScheduleActivity.java b/src/org/linaro/connect/ScheduleActivity.java
index ac68232..7a229e3 100644
--- a/src/org/linaro/connect/ScheduleActivity.java
+++ b/src/org/linaro/connect/ScheduleActivity.java
@@ -20,6 +20,9 @@ import android.widget.TextView;
 
 public class ScheduleActivity extends Activity {
 
+	/** used to specify an alternate name for the cache in the intent*/
+	public static final String INTENT_CACHENAME = "org.linaro.connect.CACHENAME";
+
 	private static final int REFRESH_ID = Menu.FIRST + 1;
 
 	private ScheduleAdapter mAdapter;
@@ -89,6 +92,9 @@ public class ScheduleActivity extends Activity {
 			if(idx > 0)
 				url = url.substring(0, idx);
 
+			String cacheName = getIntent().getStringExtra(INTENT_CACHENAME);
+			if( cacheName != null )
+				setCacheFileName(cacheName);
 			setUrl(url);
 		}