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139 lines
5.0 KiB
139 lines
5.0 KiB
/* |
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* Copyright (C) 2010 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.purplei2p.lightning.utils; |
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import android.support.annotation.NonNull; |
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import android.support.annotation.Nullable; |
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import android.util.Patterns; |
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import android.webkit.URLUtil; |
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import java.util.regex.Matcher; |
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import java.util.regex.Pattern; |
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import org.purplei2p.lightning.constant.BookmarkPage; |
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import org.purplei2p.lightning.constant.Constants; |
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import org.purplei2p.lightning.constant.DownloadsPage; |
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import org.purplei2p.lightning.constant.HistoryPage; |
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import org.purplei2p.lightning.constant.StartPage; |
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/** |
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* Utility methods for Url manipulation |
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*/ |
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public class UrlUtils { |
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private static final Pattern ACCEPTED_URI_SCHEMA = Pattern.compile( |
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"(?i)" + // switch on case insensitive matching |
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'(' + // begin group for schema |
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"(?:http|https|file)://" + |
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"|(?:inline|data|about|javascript):" + |
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"|(?:.*:.*@)" + |
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')' + |
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"(.*)"); |
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// Google search |
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public final static String QUERY_PLACE_HOLDER = "%s"; |
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private UrlUtils() { /* cannot be instantiated */ } |
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/** |
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* Attempts to determine whether user input is a URL or search |
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* terms. Anything with a space is passed to search if canBeSearch is true. |
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* <p/> |
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* Converts to lowercase any mistakenly uppercased schema (i.e., |
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* "Http://" converts to "http://" |
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* |
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* @param canBeSearch If true, will return a search url if it isn't a valid |
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* URL. If false, invalid URLs will return null |
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* @return Original or modified URL |
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*/ |
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@NonNull |
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public static String smartUrlFilter(@NonNull String url, boolean canBeSearch, String searchUrl) { |
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String inUrl = url.trim(); |
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boolean hasSpace = inUrl.indexOf(' ') != -1; |
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Matcher matcher = ACCEPTED_URI_SCHEMA.matcher(inUrl); |
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if (matcher.matches()) { |
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// force scheme to lowercase |
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String scheme = matcher.group(1); |
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String lcScheme = scheme.toLowerCase(); |
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if (!lcScheme.equals(scheme)) { |
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inUrl = lcScheme + matcher.group(2); |
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} |
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if (hasSpace && Patterns.WEB_URL.matcher(inUrl).matches()) { |
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inUrl = inUrl.replace(" ", "%20"); |
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} |
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return inUrl; |
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} |
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if (!hasSpace) { |
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if (Patterns.WEB_URL.matcher(inUrl).matches()) { |
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return URLUtil.guessUrl(inUrl); |
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} |
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} |
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if (canBeSearch) { |
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return URLUtil.composeSearchUrl(inUrl, |
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searchUrl, QUERY_PLACE_HOLDER); |
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} |
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return ""; |
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} |
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/** |
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* Returns whether the given url is the bookmarks/history page or a normal website |
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*/ |
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public static boolean isSpecialUrl(@Nullable String url) { |
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return url != null && url.startsWith(Constants.FILE) && |
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(url.endsWith(BookmarkPage.FILENAME) || |
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url.endsWith(DownloadsPage.FILENAME) || |
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url.endsWith(HistoryPage.FILENAME) || |
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url.endsWith(StartPage.FILENAME)); |
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} |
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/** |
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* Determines if the url is a url for the bookmark page. |
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* |
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* @param url the url to check, may be null. |
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* @return true if the url is a bookmark url, false otherwise. |
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*/ |
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public static boolean isBookmarkUrl(@Nullable String url) { |
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return url != null && url.startsWith(Constants.FILE) && url.endsWith(BookmarkPage.FILENAME); |
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} |
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/** |
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* Determines if the url is a url for the bookmark page. |
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* |
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* @param url the url to check, may be null. |
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* @return true if the url is a bookmark url, false otherwise. |
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*/ |
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public static boolean isDownloadsUrl(@Nullable String url) { |
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return url != null && url.startsWith(Constants.FILE) && url.endsWith(DownloadsPage.FILENAME); |
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} |
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/** |
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* Determines if the url is a url for the history page. |
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* |
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* @param url the url to check, may be null. |
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* @return true if the url is a history url, false otherwise. |
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*/ |
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public static boolean isHistoryUrl(@Nullable String url) { |
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return url != null && url.startsWith(Constants.FILE) && url.endsWith(HistoryPage.FILENAME); |
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} |
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/** |
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* Determines if the url is a url for the start page. |
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* |
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* @param url the url to check, may be null. |
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* @return true if the url is a start page url, false otherwise. |
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*/ |
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public static boolean isStartPageUrl(@Nullable String url) { |
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return url != null && url.startsWith(Constants.FILE) && url.endsWith(StartPage.FILENAME); |
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} |
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} |