Philip P. Moltmann | a26b775 | 2016-05-23 10:33:57 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.printservice.recommendation.plugin.samsung; |
| 18 | |
| 19 | import android.net.nsd.NsdServiceInfo; |
| 20 | import android.text.TextUtils; |
| 21 | |
| 22 | import java.nio.charset.StandardCharsets; |
| 23 | import java.util.Locale; |
| 24 | import java.util.Map; |
| 25 | |
| 26 | public class MDnsUtils { |
| 27 | public static final String ATTRIBUTE__TY = "ty"; |
| 28 | public static final String ATTRIBUTE__PRODUCT = "product"; |
| 29 | public static final String ATTRIBUTE__USB_MFG = "usb_MFG"; |
| 30 | public static final String ATTRIBUTE__MFG = "mfg"; |
| 31 | |
| 32 | public static String getString(byte[] value) { |
| 33 | if (value != null) return new String(value,StandardCharsets.UTF_8); |
| 34 | return null; |
| 35 | } |
| 36 | |
| 37 | public static boolean isVendorPrinter(NsdServiceInfo networkDevice, String[] vendorValues) { |
| 38 | |
| 39 | Map<String,byte[]> attributes = networkDevice.getAttributes(); |
| 40 | String product = getString(attributes.get(ATTRIBUTE__PRODUCT)); |
| 41 | String ty = getString(attributes.get(ATTRIBUTE__TY)); |
| 42 | String usbMfg = getString(attributes.get(ATTRIBUTE__USB_MFG)); |
| 43 | String mfg = getString(attributes.get(ATTRIBUTE__MFG)); |
| 44 | return containsVendor(product, vendorValues) || containsVendor(ty, vendorValues) || containsVendor(usbMfg, vendorValues) || containsVendor(mfg, vendorValues); |
| 45 | |
| 46 | } |
| 47 | |
| 48 | public static String getVendor(NsdServiceInfo networkDevice) { |
| 49 | String vendor; |
| 50 | |
| 51 | Map<String,byte[]> attributes = networkDevice.getAttributes(); |
| 52 | vendor = getString(attributes.get(ATTRIBUTE__MFG)); |
| 53 | if (!TextUtils.isEmpty(vendor)) return vendor; |
| 54 | vendor = getString(attributes.get(ATTRIBUTE__USB_MFG)); |
| 55 | if (!TextUtils.isEmpty(vendor)) return vendor; |
| 56 | |
| 57 | return null; |
| 58 | } |
| 59 | |
| 60 | private static boolean containsVendor(String container, String[] vendorValues) { |
| 61 | if ((container == null) || (vendorValues == null)) return false; |
| 62 | for (String value : vendorValues) { |
| 63 | if (containsString(container, value) |
| 64 | || containsString(container.toLowerCase(Locale.US), value.toLowerCase(Locale.US)) |
| 65 | || containsString(container.toUpperCase(Locale.US), value.toUpperCase(Locale.US))) |
| 66 | return true; |
| 67 | } |
| 68 | return false; |
| 69 | } |
| 70 | |
| 71 | private static boolean containsString(String container, String contained) { |
| 72 | return (container != null) && (contained != null) && (container.equalsIgnoreCase(contained) || container.contains(contained + " ")); |
| 73 | } |
| 74 | } |