Extract lib module

[signal-cli] / src / main / java / org / asamk / signal / manager / groups / GroupInviteLinkUrl.java

diff --git a/src/main/java/org/asamk/signal/manager/groups/GroupInviteLinkUrl.java b/src/main/java/org/asamk/signal/manager/groups/GroupInviteLinkUrl.java
deleted file mode 100644 (file)
index bf9e0e5..0000000
--- a/src/main/java/org/asamk/signal/manager/groups/GroupInviteLinkUrl.java
+++ /dev/null
@@ -1,140 +0,0 @@
-package org.asamk.signal.manager.groups;
-
-import com.google.protobuf.ByteString;
-
-import org.signal.storageservice.protos.groups.GroupInviteLink;
-import org.signal.storageservice.protos.groups.local.DecryptedGroup;
-import org.signal.zkgroup.InvalidInputException;
-import org.signal.zkgroup.groups.GroupMasterKey;
-import org.whispersystems.util.Base64UrlSafe;
-
-import java.io.IOException;
-import java.net.URI;
-import java.net.URISyntaxException;
-
-public final class GroupInviteLinkUrl {
-
-    private static final String GROUP_URL_HOST = "signal.group";
-    private static final String GROUP_URL_PREFIX = "https://" + GROUP_URL_HOST + "/#";
-
-    private final GroupMasterKey groupMasterKey;
-    private final GroupLinkPassword password;
-    private final String url;
-
-    public static GroupInviteLinkUrl forGroup(GroupMasterKey groupMasterKey, DecryptedGroup group) {
-        return new GroupInviteLinkUrl(groupMasterKey,
-                GroupLinkPassword.fromBytes(group.getInviteLinkPassword().toByteArray()));
-    }
-
-    public static boolean isGroupLink(String urlString) {
-        return getGroupUrl(urlString) != null;
-    }
-
-    /**
-     * @return null iff not a group url.
-     * @throws InvalidGroupLinkException If group url, but cannot be parsed.
-     */
-    public static GroupInviteLinkUrl fromUri(String urlString) throws InvalidGroupLinkException, UnknownGroupLinkVersionException {
-        URI uri = getGroupUrl(urlString);
-
-        if (uri == null) {
-            return null;
-        }
-
-        try {
-            if (!"/".equals(uri.getPath()) && uri.getPath().length() > 0) {
-                throw new InvalidGroupLinkException("No path was expected in uri");
-            }
-
-            String encoding = uri.getFragment();
-
-            if (encoding == null || encoding.length() == 0) {
-                throw new InvalidGroupLinkException("No reference was in the uri");
-            }
-
-            byte[] bytes = Base64UrlSafe.decodePaddingAgnostic(encoding);
-            GroupInviteLink groupInviteLink = GroupInviteLink.parseFrom(bytes);
-
-            switch (groupInviteLink.getContentsCase()) {
-                case V1CONTENTS: {
-                    GroupInviteLink.GroupInviteLinkContentsV1 groupInviteLinkContentsV1 = groupInviteLink.getV1Contents();
-                    GroupMasterKey groupMasterKey = new GroupMasterKey(groupInviteLinkContentsV1.getGroupMasterKey()
-                            .toByteArray());
-                    GroupLinkPassword password = GroupLinkPassword.fromBytes(groupInviteLinkContentsV1.getInviteLinkPassword()
-                            .toByteArray());
-
-                    return new GroupInviteLinkUrl(groupMasterKey, password);
-                }
-                default:
-                    throw new UnknownGroupLinkVersionException("Url contains no known group link content");
-            }
-        } catch (InvalidInputException | IOException e) {
-            throw new InvalidGroupLinkException(e);
-        }
-    }
-
-    /**
-     * @return {@link URI} if the host name matches.
-     */
-    private static URI getGroupUrl(String urlString) {
-        try {
-            URI url = new URI(urlString);
-
-            if (!"https".equalsIgnoreCase(url.getScheme()) && !"sgnl".equalsIgnoreCase(url.getScheme())) {
-                return null;
-            }
-
-            return GROUP_URL_HOST.equalsIgnoreCase(url.getHost()) ? url : null;
-        } catch (URISyntaxException e) {
-            return null;
-        }
-    }
-
-    private GroupInviteLinkUrl(GroupMasterKey groupMasterKey, GroupLinkPassword password) {
-        this.groupMasterKey = groupMasterKey;
-        this.password = password;
-        this.url = createUrl(groupMasterKey, password);
-    }
-
-    protected static String createUrl(GroupMasterKey groupMasterKey, GroupLinkPassword password) {
-        GroupInviteLink groupInviteLink = GroupInviteLink.newBuilder()
-                .setV1Contents(GroupInviteLink.GroupInviteLinkContentsV1.newBuilder()
-                        .setGroupMasterKey(ByteString.copyFrom(groupMasterKey.serialize()))
-                        .setInviteLinkPassword(ByteString.copyFrom(password.serialize())))
-                .build();
-
-        String encoding = Base64UrlSafe.encodeBytesWithoutPadding(groupInviteLink.toByteArray());
-
-        return GROUP_URL_PREFIX + encoding;
-    }
-
-    public String getUrl() {
-        return url;
-    }
-
-    public GroupMasterKey getGroupMasterKey() {
-        return groupMasterKey;
-    }
-
-    public GroupLinkPassword getPassword() {
-        return password;
-    }
-
-    public final static class InvalidGroupLinkException extends Exception {
-
-        public InvalidGroupLinkException(String message) {
-            super(message);
-        }
-
-        public InvalidGroupLinkException(Throwable cause) {
-            super(cause);
-        }
-    }
-
-    public final static class UnknownGroupLinkVersionException extends Exception {
-
-        public UnknownGroupLinkVersionException(String message) {
-            super(message);
-        }
-    }
-}