kopia lustrzana https://github.com/ryukoposting/Signal-Android
81 wiersze
2.4 KiB
Java
81 wiersze
2.4 KiB
Java
package org.thoughtcrime.securesms.stickers;
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import android.net.Uri;
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import android.text.TextUtils;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import org.signal.core.util.Hex;
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import org.signal.libsignal.protocol.util.Pair;
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import org.whispersystems.signalservice.api.util.OptionalUtil;
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import java.util.Optional;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Manages creating and parsing the various sticker pack URLs.
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*/
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public class StickerUrl {
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private static final Pattern STICKER_URL_PATTERN = Pattern.compile("^https://signal\\.art/addstickers/#pack_id=(.*)&pack_key=(.*)$");
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public static Optional<Pair<String, String>> parseExternalUri(@Nullable Uri uri) {
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if (uri == null) return Optional.empty();
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return OptionalUtil.or(parseActionUri(uri), parseShareLink(uri.toString()));
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}
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public static Optional<Pair<String, String>> parseActionUri(@Nullable Uri uri) {
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if (uri == null) return Optional.empty();
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String packId = uri.getQueryParameter("pack_id");
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String packKey = uri.getQueryParameter("pack_key");
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if (TextUtils.isEmpty(packId) || TextUtils.isEmpty(packKey) || !isValidHex(packId) || !isValidHex(packKey)) {
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return Optional.empty();
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}
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return Optional.of(new Pair<>(packId, packKey));
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}
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public static @NonNull Uri createActionUri(@NonNull String packId, @NonNull String packKey) {
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return Uri.parse(String.format("sgnl://addstickers?pack_id=%s&pack_key=%s", packId, packKey));
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}
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public static boolean isValidShareLink(@Nullable String url) {
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return parseShareLink(url).isPresent();
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}
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public static @NonNull Optional<Pair<String, String>> parseShareLink(@Nullable String url) {
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if (url == null) return Optional.empty();
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Matcher matcher = STICKER_URL_PATTERN.matcher(url);
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if (matcher.matches() && matcher.groupCount() == 2) {
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String packId = matcher.group(1);
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String packKey = matcher.group(2);
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if (isValidHex(packId) && isValidHex(packKey)) {
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return Optional.of(new Pair<>(packId, packKey));
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}
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}
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return Optional.empty();
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}
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public static String createShareLink(@NonNull String packId, @NonNull String packKey) {
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return "https://signal.art/addstickers/#pack_id=" + packId + "&pack_key=" + packKey;
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}
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private static boolean isValidHex(String value) {
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try {
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Hex.fromStringCondensed(value);
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return true;
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} catch (Exception e) {
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return false;
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}
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}
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}
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