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Signal Service communication library for Java
/**
* Copyright (C) 2014-2016 Open Whisper Systems
*
* Licensed according to the LICENSE file in this repository.
*/
package org.whispersystems.signalservice.api.messages;
import org.whispersystems.libsignal.util.guava.Optional;
import org.whispersystems.signalservice.api.messages.shared.SharedContact;
import org.whispersystems.signalservice.api.push.SignalServiceAddress;
import java.util.LinkedList;
import java.util.List;
/**
* Represents a decrypted Signal Service data message.
*/
public class SignalServiceDataMessage {
private final long timestamp;
private final Optional> attachments;
private final Optional body;
private final Optional group;
private final Optional profileKey;
private final boolean endSession;
private final boolean expirationUpdate;
private final int expiresInSeconds;
private final boolean profileKeyUpdate;
private final Optional quote;
private final Optional> contacts;
/**
* Construct a SignalServiceDataMessage with a body and no attachments.
*
* @param timestamp The sent timestamp.
* @param body The message contents.
*/
public SignalServiceDataMessage(long timestamp, String body) {
this(timestamp, body, 0);
}
/**
* Construct an expiring SignalServiceDataMessage with a body and no attachments.
*
* @param timestamp The sent timestamp.
* @param body The message contents.
* @param expiresInSeconds The number of seconds in which the message should expire after having been seen.
*/
public SignalServiceDataMessage(long timestamp, String body, int expiresInSeconds) {
this(timestamp, (List)null, body, expiresInSeconds);
}
public SignalServiceDataMessage(final long timestamp, final SignalServiceAttachment attachment, final String body) {
this(timestamp, new LinkedList() {{add(attachment);}}, body);
}
/**
* Construct a SignalServiceDataMessage with a body and list of attachments.
*
* @param timestamp The sent timestamp.
* @param attachments The attachments.
* @param body The message contents.
*/
public SignalServiceDataMessage(long timestamp, List attachments, String body) {
this(timestamp, attachments, body, 0);
}
/**
* Construct an expiring SignalServiceDataMessage with a body and list of attachments.
*
* @param timestamp The sent timestamp.
* @param attachments The attachments.
* @param body The message contents.
* @param expiresInSeconds The number of seconds in which the message should expire after having been seen.
*/
public SignalServiceDataMessage(long timestamp, List attachments, String body, int expiresInSeconds) {
this(timestamp, null, attachments, body, expiresInSeconds);
}
/**
* Construct a SignalServiceDataMessage group message with attachments and body.
*
* @param timestamp The sent timestamp.
* @param group The group information.
* @param attachments The attachments.
* @param body The message contents.
*/
public SignalServiceDataMessage(long timestamp, SignalServiceGroup group, List attachments, String body) {
this(timestamp, group, attachments, body, 0);
}
/**
* Construct an expiring SignalServiceDataMessage group message with attachments and body.
*
* @param timestamp The sent timestamp.
* @param group The group information.
* @param attachments The attachments.
* @param body The message contents.
* @param expiresInSeconds The number of seconds in which a message should disappear after having been seen.
*/
public SignalServiceDataMessage(long timestamp, SignalServiceGroup group, List attachments, String body, int expiresInSeconds) {
this(timestamp, group, attachments, body, false, expiresInSeconds, false, null, false, null, null);
}
/**
* Construct a SignalServiceDataMessage.
*
* @param timestamp The sent timestamp.
* @param group The group information (or null if none).
* @param attachments The attachments (or null if none).
* @param body The message contents.
* @param endSession Flag indicating whether this message should close a session.
* @param expiresInSeconds Number of seconds in which the message should disappear after being seen.
*/
public SignalServiceDataMessage(long timestamp, SignalServiceGroup group,
List attachments,
String body, boolean endSession, int expiresInSeconds,
boolean expirationUpdate, byte[] profileKey, boolean profileKeyUpdate,
Quote quote, List sharedContacts)
{
this.timestamp = timestamp;
this.body = Optional.fromNullable(body);
this.group = Optional.fromNullable(group);
this.endSession = endSession;
this.expiresInSeconds = expiresInSeconds;
this.expirationUpdate = expirationUpdate;
this.profileKey = Optional.fromNullable(profileKey);
this.profileKeyUpdate = profileKeyUpdate;
this.quote = Optional.fromNullable(quote);
if (attachments != null && !attachments.isEmpty()) {
this.attachments = Optional.of(attachments);
} else {
this.attachments = Optional.absent();
}
if (sharedContacts != null && !sharedContacts.isEmpty()) {
this.contacts = Optional.of(sharedContacts);
} else {
this.contacts = Optional.absent();
}
}
public static Builder newBuilder() {
return new Builder();
}
/**
* @return The message timestamp.
*/
public long getTimestamp() {
return timestamp;
}
/**
* @return The message attachments (if any).
*/
public Optional> getAttachments() {
return attachments;
}
/**
* @return The message body (if any).
*/
public Optional getBody() {
return body;
}
/**
* @return The message group info (if any).
*/
public Optional getGroupInfo() {
return group;
}
public boolean isEndSession() {
return endSession;
}
public boolean isExpirationUpdate() {
return expirationUpdate;
}
public boolean isProfileKeyUpdate() {
return profileKeyUpdate;
}
public boolean isGroupUpdate() {
return group.isPresent() && group.get().getType() != SignalServiceGroup.Type.DELIVER;
}
public int getExpiresInSeconds() {
return expiresInSeconds;
}
public Optional getProfileKey() {
return profileKey;
}
public Optional getQuote() {
return quote;
}
public Optional> getSharedContacts() {
return contacts;
}
public static class Builder {
private List attachments = new LinkedList<>();
private List sharedContacts = new LinkedList<>();
private long timestamp;
private SignalServiceGroup group;
private String body;
private boolean endSession;
private int expiresInSeconds;
private boolean expirationUpdate;
private byte[] profileKey;
private boolean profileKeyUpdate;
private Quote quote;
private Builder() {}
public Builder withTimestamp(long timestamp) {
this.timestamp = timestamp;
return this;
}
public Builder asGroupMessage(SignalServiceGroup group) {
this.group = group;
return this;
}
public Builder withAttachment(SignalServiceAttachment attachment) {
this.attachments.add(attachment);
return this;
}
public Builder withAttachments(List attachments) {
this.attachments.addAll(attachments);
return this;
}
public Builder withBody(String body) {
this.body = body;
return this;
}
public Builder asEndSessionMessage() {
return asEndSessionMessage(true);
}
public Builder asEndSessionMessage(boolean endSession) {
this.endSession = endSession;
return this;
}
public Builder asExpirationUpdate() {
return asExpirationUpdate(true);
}
public Builder asExpirationUpdate(boolean expirationUpdate) {
this.expirationUpdate = expirationUpdate;
return this;
}
public Builder withExpiration(int expiresInSeconds) {
this.expiresInSeconds = expiresInSeconds;
return this;
}
public Builder withProfileKey(byte[] profileKey) {
this.profileKey = profileKey;
return this;
}
public Builder asProfileKeyUpdate(boolean profileKeyUpdate) {
this.profileKeyUpdate = profileKeyUpdate;
return this;
}
public Builder withQuote(Quote quote) {
this.quote = quote;
return this;
}
public Builder withSharedContact(SharedContact contact) {
this.sharedContacts.add(contact);
return this;
}
public Builder withSharedContacts(List contacts) {
this.sharedContacts.addAll(contacts);
return this;
}
public SignalServiceDataMessage build() {
if (timestamp == 0) timestamp = System.currentTimeMillis();
return new SignalServiceDataMessage(timestamp, group, attachments, body, endSession,
expiresInSeconds, expirationUpdate, profileKey,
profileKeyUpdate, quote, sharedContacts);
}
}
public static class Quote {
private final long id;
private final SignalServiceAddress author;
private final String text;
private final List attachments;
public Quote(long id, SignalServiceAddress author, String text, List attachments) {
this.id = id;
this.author = author;
this.text = text;
this.attachments = attachments;
}
public long getId() {
return id;
}
public SignalServiceAddress getAuthor() {
return author;
}
public String getText() {
return text;
}
public List getAttachments() {
return attachments;
}
public static class QuotedAttachment {
private final String contentType;
private final String fileName;
private final SignalServiceAttachment thumbnail;
public QuotedAttachment(String contentType, String fileName, SignalServiceAttachment thumbnail) {
this.contentType = contentType;
this.fileName = fileName;
this.thumbnail = thumbnail;
}
public String getContentType() {
return contentType;
}
public String getFileName() {
return fileName;
}
public SignalServiceAttachment getThumbnail() {
return thumbnail;
}
}
}
}
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