src/com/android/apps/tag/record/UriRecord.java - platform/packages/apps/Tag - Git at Google

 /*
  * Copyright (C) 2010 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.apps.tag.record;

 import com.android.apps.tag.R;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.BiMap;
 import com.google.common.collect.ImmutableBiMap;
 import com.google.common.primitives.Bytes;

 import android.app.Activity;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
 import android.nfc.NdefRecord;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.telephony.PhoneNumberUtils;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;

 import java.nio.charset.Charset;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;

 /**
  * A parsed record containing a Uri.
  */
 public class UriRecord extends ParsedNdefRecord implements OnClickListener {
     private static final String TAG = "UriRecord";

     public static final String RECORD_TYPE = "UriRecord";

     /**
      * NFC Forum "URI Record Type Definition"
      *
      * This is a mapping of "URI Identifier Codes" to URI string prefixes,
      * per section 3.2.2 of the NFC Forum URI Record Type Definition document.
      */
     private static final BiMap<Byte, String> URI_PREFIX_MAP = ImmutableBiMap.<Byte, String>builder()
             .put((byte) 0x00, "")
             .put((byte) 0x01, "http://www.")
             .put((byte) 0x02, "https://www.")
             .put((byte) 0x03, "http://")
             .put((byte) 0x04, "https://")
             .put((byte) 0x05, "tel:")
             .put((byte) 0x06, "mailto:")
             .put((byte) 0x07, "ftp://anonymous:anonymous@")
             .put((byte) 0x08, "ftp://ftp.")
             .put((byte) 0x09, "ftps://")
             .put((byte) 0x0A, "sftp://")
             .put((byte) 0x0B, "smb://")
             .put((byte) 0x0C, "nfs://")
             .put((byte) 0x0D, "ftp://")
             .put((byte) 0x0E, "dav://")
             .put((byte) 0x0F, "news:")
             .put((byte) 0x10, "telnet://")
             .put((byte) 0x11, "imap:")
             .put((byte) 0x12, "rtsp://")
             .put((byte) 0x13, "urn:")
             .put((byte) 0x14, "pop:")
             .put((byte) 0x15, "sip:")
             .put((byte) 0x16, "sips:")
             .put((byte) 0x17, "tftp:")
             .put((byte) 0x18, "btspp://")
             .put((byte) 0x19, "btl2cap://")
             .put((byte) 0x1A, "btgoep://")
             .put((byte) 0x1B, "tcpobex://")
             .put((byte) 0x1C, "irdaobex://")
             .put((byte) 0x1D, "file://")
             .put((byte) 0x1E, "urn:epc:id:")
             .put((byte) 0x1F, "urn:epc:tag:")
             .put((byte) 0x20, "urn:epc:pat:")
             .put((byte) 0x21, "urn:epc:raw:")
             .put((byte) 0x22, "urn:epc:")
             .put((byte) 0x23, "urn:nfc:")
             .build();

     private final Uri mUri;

     private UriRecord(Uri uri) {
         this.mUri = Preconditions.checkNotNull(uri);
     }

     public Intent getIntentForUri() {
         String scheme = mUri.getScheme();
         if ("tel".equals(scheme)) {
             return new Intent(Intent.ACTION_CALL, mUri);
         } else if ("sms".equals(scheme) || "smsto".equals(scheme)) {
             return new Intent(Intent.ACTION_SENDTO, mUri);
         } else {
             return new Intent(Intent.ACTION_VIEW, mUri);
         }
     }

     public String getPrettyUriString(Context context) {
         String scheme = mUri.getScheme();
         boolean tel = "tel".equals(scheme);
         boolean sms = "sms".equals(scheme) || "smsto".equals(scheme);
         if (tel || sms) {
             String ssp = mUri.getSchemeSpecificPart();
             int offset = ssp.indexOf('?');
             if (offset >= 0) {
                 ssp = ssp.substring(0, offset);
             }
             if (tel) {
                 return context.getString(R.string.action_call, PhoneNumberUtils.formatNumber(ssp));
             } else {
                 return context.getString(R.string.action_text, PhoneNumberUtils.formatNumber(ssp));
             }
         } else {
             return mUri.toString();
         }
     }

     @Override
     public View getView(Activity activity, LayoutInflater inflater, ViewGroup parent, int offset) {
         return RecordUtils.getViewsForIntent(activity, inflater, parent, this, getIntentForUri(),
                 getPrettyUriString(activity));
     }

     @Override
     public String getSnippet(Context context, Locale locale) {
         return getPrettyUriString(context);
     }

     @Override
     public void onClick(View view) {
         RecordUtils.ClickInfo info = (RecordUtils.ClickInfo) view.getTag();
         try {
             info.activity.startActivity(info.intent);
             info.activity.finish();
         } catch (ActivityNotFoundException e) {
             // The activity wansn't found for some reason. Don't crash, but don't do anything.
             Log.e(TAG, "Failed to launch activity for intent " + info.intent, e);
         }
     }

     @VisibleForTesting
     public Uri getUri() {
         return mUri;
     }

     /**
      * Convert {@link android.nfc.NdefRecord} into a {@link android.net.Uri}. This will handle
      * both TNF_WELL_KNOWN / RTD_URI and TNF_ABSOLUTE_URI.
      *
      * @throws IllegalArgumentException if the NdefRecord is not a
      *     record containing a URI.
      */
     public static UriRecord parse(NdefRecord record) {
         short tnf = record.getTnf();
         if (tnf == NdefRecord.TNF_WELL_KNOWN) {
             return parseWellKnown(record);
         } else if (tnf == NdefRecord.TNF_ABSOLUTE_URI) {
             return parseAbsolute(record);
         }
         throw new IllegalArgumentException("Unknown TNF " + tnf);
     }

     /** Parse and absolute URI record */
     private static UriRecord parseAbsolute(NdefRecord record) {
         byte[] payload = record.getPayload();
         Uri uri = Uri.parse(new String(payload, Charset.forName("UTF-8")));
         return new UriRecord(uri);
     }

     /** Parse an well known URI record */
     private static UriRecord parseWellKnown(NdefRecord record) {
         Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_URI));

         byte[] payload = record.getPayload();
         Preconditions.checkArgument(payload.length > 0);

         /*
          * payload[0] contains the URI Identifier Code, per the
          * NFC Forum "URI Record Type Definition" section 3.2.2.
          *
          * payload[1]...payload[payload.length - 1] contains the rest of
          * the URI.
          */

         String prefix = URI_PREFIX_MAP.get(payload[0]);
         Preconditions.checkArgument(prefix != null);

         byte[] fullUri = Bytes.concat(
                 prefix.getBytes(Charset.forName("UTF-8")),
                 Arrays.copyOfRange(payload, 1, payload.length));

         Uri uri = Uri.parse(new String(fullUri, Charset.forName("UTF-8")));
         return new UriRecord(uri);
     }

     public static boolean isUri(NdefRecord record) {
         try {
             parse(record);
             return true;
         } catch (IllegalArgumentException e) {
             return false;
         }
     }

     private static final byte[] EMPTY = new byte[0];

     /**
      * Convert a {@link Uri} to an {@link NdefRecord}
      */
     public static NdefRecord newUriRecord(Uri uri) {
         byte[] uriBytes = uri.toString().getBytes(Charset.forName("UTF-8"));

         /*
          * We prepend 0x00 to the bytes of the URI to indicate that this
          * is the entire URI, and we are not taking advantage of the
          * URI shortening rules in the NFC Forum URI spec section 3.2.2.
          * This produces a NdefRecord which is slightly larger than
          * necessary.
          *
          * In the future, we should use the URI shortening rules in 3.2.2
          * to create a smaller NdefRecord.
          */
         byte[] payload = Bytes.concat(new byte[] { 0x00 }, uriBytes);

         return new NdefRecord(NdefRecord.TNF_WELL_KNOWN,
                 NdefRecord.RTD_URI, EMPTY, payload);
     }
 }
	/*
	* Copyright (C) 2010 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.apps.tag.record;

	import com.android.apps.tag.R;
	import com.google.common.annotations.VisibleForTesting;
	import com.google.common.base.Preconditions;
	import com.google.common.collect.BiMap;
	import com.google.common.collect.ImmutableBiMap;
	import com.google.common.primitives.Bytes;

	import android.app.Activity;
	import android.content.ActivityNotFoundException;
	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.PackageManager;
	import android.content.pm.ResolveInfo;
	import android.net.Uri;
	import android.nfc.NdefRecord;
	import android.os.Parcel;
	import android.os.Parcelable;
	import android.telephony.PhoneNumberUtils;
	import android.text.TextUtils;
	import android.util.Log;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.View.OnClickListener;
	import android.view.ViewGroup;
	import android.widget.ImageView;
	import android.widget.TextView;

	import java.nio.charset.Charset;
	import java.util.Arrays;
	import java.util.List;
	import java.util.Locale;

	/**
	* A parsed record containing a Uri.
	*/
	public class UriRecord extends ParsedNdefRecord implements OnClickListener {
	private static final String TAG = "UriRecord";

	public static final String RECORD_TYPE = "UriRecord";

	/**
	* NFC Forum "URI Record Type Definition"
	*
	* This is a mapping of "URI Identifier Codes" to URI string prefixes,
	* per section 3.2.2 of the NFC Forum URI Record Type Definition document.
	*/
	private static final BiMap<Byte, String> URI_PREFIX_MAP = ImmutableBiMap.<Byte, String>builder()
	.put((byte) 0x00, "")
	.put((byte) 0x01, "http://www.")
	.put((byte) 0x02, "https://www.")
	.put((byte) 0x03, "http://")
	.put((byte) 0x04, "https://")
	.put((byte) 0x05, "tel:")
	.put((byte) 0x06, "mailto:")
	.put((byte) 0x07, "ftp://anonymous:anonymous@")
	.put((byte) 0x08, "ftp://ftp.")
	.put((byte) 0x09, "ftps://")
	.put((byte) 0x0A, "sftp://")
	.put((byte) 0x0B, "smb://")
	.put((byte) 0x0C, "nfs://")
	.put((byte) 0x0D, "ftp://")
	.put((byte) 0x0E, "dav://")
	.put((byte) 0x0F, "news:")
	.put((byte) 0x10, "telnet://")
	.put((byte) 0x11, "imap:")
	.put((byte) 0x12, "rtsp://")
	.put((byte) 0x13, "urn:")
	.put((byte) 0x14, "pop:")
	.put((byte) 0x15, "sip:")
	.put((byte) 0x16, "sips:")
	.put((byte) 0x17, "tftp:")
	.put((byte) 0x18, "btspp://")
	.put((byte) 0x19, "btl2cap://")
	.put((byte) 0x1A, "btgoep://")
	.put((byte) 0x1B, "tcpobex://")
	.put((byte) 0x1C, "irdaobex://")
	.put((byte) 0x1D, "file://")
	.put((byte) 0x1E, "urn:epc:id:")
	.put((byte) 0x1F, "urn:epc:tag:")
	.put((byte) 0x20, "urn:epc:pat:")
	.put((byte) 0x21, "urn:epc:raw:")
	.put((byte) 0x22, "urn:epc:")
	.put((byte) 0x23, "urn:nfc:")
	.build();

	private final Uri mUri;

	private UriRecord(Uri uri) {
	this.mUri = Preconditions.checkNotNull(uri);
	}

	public Intent getIntentForUri() {
	String scheme = mUri.getScheme();
	if ("tel".equals(scheme)) {
	return new Intent(Intent.ACTION_CALL, mUri);
	} else if ("sms".equals(scheme) \|\| "smsto".equals(scheme)) {
	return new Intent(Intent.ACTION_SENDTO, mUri);
	} else {
	return new Intent(Intent.ACTION_VIEW, mUri);
	}
	}

	public String getPrettyUriString(Context context) {
	String scheme = mUri.getScheme();
	boolean tel = "tel".equals(scheme);
	boolean sms = "sms".equals(scheme) \|\| "smsto".equals(scheme);
	if (tel \|\| sms) {
	String ssp = mUri.getSchemeSpecificPart();
	int offset = ssp.indexOf('?');
	if (offset >= 0) {
	ssp = ssp.substring(0, offset);
	}
	if (tel) {
	return context.getString(R.string.action_call, PhoneNumberUtils.formatNumber(ssp));
	} else {
	return context.getString(R.string.action_text, PhoneNumberUtils.formatNumber(ssp));
	}
	} else {
	return mUri.toString();
	}
	}

	@Override
	public View getView(Activity activity, LayoutInflater inflater, ViewGroup parent, int offset) {
	return RecordUtils.getViewsForIntent(activity, inflater, parent, this, getIntentForUri(),
	getPrettyUriString(activity));
	}

	@Override
	public String getSnippet(Context context, Locale locale) {
	return getPrettyUriString(context);
	}

	@Override
	public void onClick(View view) {
	RecordUtils.ClickInfo info = (RecordUtils.ClickInfo) view.getTag();
	try {
	info.activity.startActivity(info.intent);
	info.activity.finish();
	} catch (ActivityNotFoundException e) {
	// The activity wansn't found for some reason. Don't crash, but don't do anything.
	Log.e(TAG, "Failed to launch activity for intent " + info.intent, e);
	}
	}

	@VisibleForTesting
	public Uri getUri() {
	return mUri;
	}

	/**
	* Convert {@link android.nfc.NdefRecord} into a {@link android.net.Uri}. This will handle
	* both TNF_WELL_KNOWN / RTD_URI and TNF_ABSOLUTE_URI.
	*
	* @throws IllegalArgumentException if the NdefRecord is not a
	* record containing a URI.
	*/
	public static UriRecord parse(NdefRecord record) {
	short tnf = record.getTnf();
	if (tnf == NdefRecord.TNF_WELL_KNOWN) {
	return parseWellKnown(record);
	} else if (tnf == NdefRecord.TNF_ABSOLUTE_URI) {
	return parseAbsolute(record);
	}
	throw new IllegalArgumentException("Unknown TNF " + tnf);
	}

	/** Parse and absolute URI record */
	private static UriRecord parseAbsolute(NdefRecord record) {
	byte[] payload = record.getPayload();
	Uri uri = Uri.parse(new String(payload, Charset.forName("UTF-8")));
	return new UriRecord(uri);
	}

	/** Parse an well known URI record */
	private static UriRecord parseWellKnown(NdefRecord record) {
	Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_URI));

	byte[] payload = record.getPayload();
	Preconditions.checkArgument(payload.length > 0);

	/*
	* payload[0] contains the URI Identifier Code, per the
	* NFC Forum "URI Record Type Definition" section 3.2.2.
	*
	* payload[1]...payload[payload.length - 1] contains the rest of
	* the URI.
	*/

	String prefix = URI_PREFIX_MAP.get(payload[0]);
	Preconditions.checkArgument(prefix != null);

	byte[] fullUri = Bytes.concat(
	prefix.getBytes(Charset.forName("UTF-8")),
	Arrays.copyOfRange(payload, 1, payload.length));

	Uri uri = Uri.parse(new String(fullUri, Charset.forName("UTF-8")));
	return new UriRecord(uri);
	}

	public static boolean isUri(NdefRecord record) {
	try {
	parse(record);
	return true;
	} catch (IllegalArgumentException e) {
	return false;
	}
	}

	private static final byte[] EMPTY = new byte[0];

	/**
	* Convert a {@link Uri} to an {@link NdefRecord}
	*/
	public static NdefRecord newUriRecord(Uri uri) {
	byte[] uriBytes = uri.toString().getBytes(Charset.forName("UTF-8"));

	/*
	* We prepend 0x00 to the bytes of the URI to indicate that this
	* is the entire URI, and we are not taking advantage of the
	* URI shortening rules in the NFC Forum URI spec section 3.2.2.
	* This produces a NdefRecord which is slightly larger than
	* necessary.
	*
	* In the future, we should use the URI shortening rules in 3.2.2
	* to create a smaller NdefRecord.
	*/
	byte[] payload = Bytes.concat(new byte[] { 0x00 }, uriBytes);

	return new NdefRecord(NdefRecord.TNF_WELL_KNOWN,
	NdefRecord.RTD_URI, EMPTY, payload);
	}
	}