124 lines
4.7 KiB
Java
124 lines
4.7 KiB
Java
/*
|
|
* Copyright (c) 2018, Daniel Gultsch All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation and/or
|
|
* other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
package eu.siacs.conversations.ui.util;
|
|
|
|
import android.os.Build;
|
|
import android.text.Editable;
|
|
import android.text.util.Linkify;
|
|
|
|
import java.util.Locale;
|
|
|
|
import eu.siacs.conversations.ui.text.FixedURLSpan;
|
|
import eu.siacs.conversations.utils.GeoHelper;
|
|
import eu.siacs.conversations.utils.Patterns;
|
|
import eu.siacs.conversations.utils.XmppUri;
|
|
|
|
public class MyLinkify {
|
|
|
|
private static final Linkify.TransformFilter WEBURL_TRANSFORM_FILTER = (matcher, url) -> {
|
|
if (url == null) {
|
|
return null;
|
|
}
|
|
final String lcUrl = url.toLowerCase(Locale.US);
|
|
if (lcUrl.startsWith("http://") || lcUrl.startsWith("https://")) {
|
|
return removeTrailingBracket(url);
|
|
} else {
|
|
return "http://" + removeTrailingBracket(url);
|
|
}
|
|
};
|
|
|
|
private static String removeTrailingBracket(final String url) {
|
|
int numOpenBrackets = 0;
|
|
for (char c : url.toCharArray()) {
|
|
if (c == '(') {
|
|
++numOpenBrackets;
|
|
} else if (c == ')') {
|
|
--numOpenBrackets;
|
|
}
|
|
}
|
|
if (numOpenBrackets != 0 && url.charAt(url.length() - 1) == ')') {
|
|
return url.substring(0, url.length() - 1);
|
|
} else {
|
|
return url;
|
|
}
|
|
}
|
|
|
|
private static final Linkify.MatchFilter WEBURL_MATCH_FILTER = (cs, start, end) -> {
|
|
if (start > 0) {
|
|
if (cs.charAt(start - 1) == '@' || cs.charAt(start - 1) == '.'
|
|
|| cs.subSequence(Math.max(0, start - 3), start).equals("://")) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (end < cs.length()) {
|
|
// Reject strings that were probably matched only because they contain a dot followed by
|
|
// by some known TLD (see also comment for WORD_BOUNDARY in Patterns.java)
|
|
if (isAlphabetic(cs.charAt(end-1)) && isAlphabetic(cs.charAt(end))) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
private static final Linkify.MatchFilter XMPPURI_MATCH_FILTER = (s, start, end) -> {
|
|
XmppUri uri = new XmppUri(s.subSequence(start, end).toString());
|
|
return uri.isValidJid();
|
|
};
|
|
|
|
private static boolean isAlphabetic(final int code) {
|
|
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
|
|
return Character.isAlphabetic(code);
|
|
}
|
|
|
|
switch (Character.getType(code)) {
|
|
case Character.UPPERCASE_LETTER:
|
|
case Character.LOWERCASE_LETTER:
|
|
case Character.TITLECASE_LETTER:
|
|
case Character.MODIFIER_LETTER:
|
|
case Character.OTHER_LETTER:
|
|
case Character.LETTER_NUMBER:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static void addLinks(Editable body, boolean includeGeo) {
|
|
Linkify.addLinks(body, Patterns.XMPP_PATTERN, "xmpp", XMPPURI_MATCH_FILTER, null);
|
|
Linkify.addLinks(body, Patterns.AUTOLINK_WEB_URL, "http", WEBURL_MATCH_FILTER, WEBURL_TRANSFORM_FILTER);
|
|
if (includeGeo) {
|
|
Linkify.addLinks(body, GeoHelper.GEO_URI, "geo");
|
|
}
|
|
FixedURLSpan.fix(body);
|
|
}
|
|
}
|