/
MessageImpl.java
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/
MessageImpl.java
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/*
* Copyright 2015-2017 Austin Keener & Michael Ritter & Florian Spieß
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.dv8tion.jda.core.entities.impl;
import net.dv8tion.jda.client.entities.Group;
import net.dv8tion.jda.core.JDA;
import net.dv8tion.jda.core.MessageBuilder;
import net.dv8tion.jda.core.Permission;
import net.dv8tion.jda.core.entities.*;
import net.dv8tion.jda.core.exceptions.PermissionException;
import net.dv8tion.jda.core.requests.RestAction;
import net.dv8tion.jda.core.requests.restaction.AuditableRestAction;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.util.Args;
import org.json.JSONObject;
import java.io.IOException;
import java.time.OffsetDateTime;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MessageImpl implements Message
{
private static final Pattern EMOTE_PATTERN = Pattern.compile("<:([^:]+):([0-9]+)>");
private final JDAImpl api;
private final long id;
private final MessageType type;
private final MessageChannel channel;
private final boolean fromWebhook;
private boolean mentionsEveryone = false;
private boolean isTTS = false;
private boolean pinned;
private String content;
private String subContent = null;
private String strippedContent = null;
private User author;
private OffsetDateTime time;
private OffsetDateTime editedTime = null;
private List<User> mentionedUsers = new LinkedList<>();
private List<TextChannel> mentionedChannels = new LinkedList<>();
private List<Role> mentionedRoles = new LinkedList<>();
private List<Attachment> attachments = new LinkedList<>();
private List<MessageEmbed> embeds = new LinkedList<>();
private List<Emote> emotes = null;
private List<MessageReaction> reactions = new LinkedList<>();
public MessageImpl(long id, MessageChannel channel, boolean fromWebhook)
{
this(id, channel, fromWebhook, MessageType.DEFAULT);
}
public MessageImpl(long id, MessageChannel channel, boolean fromWebhook, MessageType type)
{
this.id = id;
this.channel = channel;
this.api = (channel != null) ? (JDAImpl) channel.getJDA() : null;
this.fromWebhook = fromWebhook;
this.type = type;
}
@Override
public JDA getJDA()
{
return api;
}
@Override
public boolean isPinned()
{
return pinned;
}
@Override
public RestAction<Void> pin()
{
return channel.pinMessageById(getIdLong());
}
@Override
public RestAction<Void> unpin()
{
return channel.unpinMessageById(getIdLong());
}
@Override
public RestAction<Void> addReaction(Emote emote)
{
Args.notNull(emote, "Emote");
MessageReaction reaction = reactions.parallelStream()
.filter(r -> Objects.equals(r.getEmote().getId(), emote.getId()))
.findFirst().orElse(null);
if (reaction == null)
{
checkFake(emote, "Emote");
if (!emote.canInteract(api.getSelfUser(), channel))
throw new IllegalArgumentException("Cannot react with the provided emote because it is not available in the current channel.");
}
else if (reaction.isSelf())
{
return new RestAction.EmptyRestAction<>(getJDA(), null);
}
return channel.addReactionById(getIdLong(), emote);
}
@Override
public RestAction<Void> addReaction(String unicode)
{
Args.notEmpty(unicode, "Provided Unicode");
MessageReaction reaction = reactions.parallelStream()
.filter(r -> Objects.equals(r.getEmote().getName(), unicode))
.findFirst().orElse(null);
if (reaction != null && reaction.isSelf())
return new RestAction.EmptyRestAction<>(getJDA(), null);
return channel.addReactionById(getIdLong(), unicode);
}
@Override
public RestAction<Void> clearReactions()
{
if (!isFromType(ChannelType.TEXT))
throw new IllegalStateException("Cannot clear reactions from a message in a Group or PrivateChannel.");
return getTextChannel().clearReactionsById(getId());
}
@Override
public MessageType getType()
{
return type;
}
@Override
public long getIdLong()
{
return id;
}
@Override
public List<User> getMentionedUsers()
{
return Collections.unmodifiableList(mentionedUsers);
}
@Override
public boolean isMentioned(User user)
{
return mentionsEveryone() || mentionedUsers.contains(user);
}
@Override
public List<TextChannel> getMentionedChannels()
{
return Collections.unmodifiableList(mentionedChannels);
}
@Override
public List<Role> getMentionedRoles()
{
return Collections.unmodifiableList(mentionedRoles);
}
@Override
public boolean mentionsEveryone()
{
return mentionsEveryone;
}
@Override
public boolean isEdited()
{
return editedTime != null;
}
@Override
public OffsetDateTime getEditedTime()
{
return editedTime;
}
@Override
public User getAuthor()
{
return author;
}
@Override
public Member getMember()
{
return isFromType(ChannelType.TEXT) ? getGuild().getMember(getAuthor()) : null;
}
@Override
public synchronized String getStrippedContent()
{
if (strippedContent == null)
{
String tmp = getContent();
//all the formatting keys to keep track of
String[] keys = new String[] {"*", "_", "`", "~~"};
//find all tokens (formatting strings described above)
TreeSet<FormatToken> tokens = new TreeSet<>((t1, t2) -> Integer.compare(t1.start, t2.start));
for (String key : keys)
{
Matcher matcher = Pattern.compile(Pattern.quote(key)).matcher(tmp);
while (matcher.find())
{
tokens.add(new FormatToken(key, matcher.start()));
}
}
//iterate over all tokens, find all matching pairs, and add them to the list toRemove
Stack<FormatToken> stack = new Stack<>();
List<FormatToken> toRemove = new ArrayList<>();
boolean inBlock = false;
for (FormatToken token : tokens)
{
if (stack.empty() || !stack.peek().format.equals(token.format) || stack.peek().start + token.format.length() == token.start)
{
//we are at opening tag
if (!inBlock)
{
//we are outside of block -> handle normally
if (token.format.equals("`"))
{
//block start... invalidate all previous tags
stack.clear();
inBlock = true;
}
stack.push(token);
}
else if (token.format.equals("`"))
{
//we are inside of a block -> handle only block tag
stack.push(token);
}
}
else if (!stack.empty())
{
//we found a matching close-tag
toRemove.add(stack.pop());
toRemove.add(token);
if (token.format.equals("`") && stack.empty())
{
//close tag closed the block
inBlock = false;
}
}
}
//sort tags to remove by their start-index and iteratively build the remaining string
Collections.sort(toRemove, (t1, t2) -> Integer.compare(t1.start, t2.start));
StringBuilder out = new StringBuilder();
int currIndex = 0;
for (FormatToken formatToken : toRemove)
{
if (currIndex < formatToken.start)
{
out.append(tmp.substring(currIndex, formatToken.start));
}
currIndex = formatToken.start + formatToken.format.length();
}
if (currIndex < tmp.length())
{
out.append(tmp.substring(currIndex));
}
//return the stripped text, escape all remaining formatting characters (did not have matching open/close before or were left/right of block
strippedContent = out.toString().replace("*", "\\*").replace("_", "\\_").replace("~", "\\~");
}
return strippedContent;
}
@Override
public synchronized String getContent()
{
if (subContent == null)
{
String tmp = content;
for (User user : mentionedUsers)
{
if (isFromType(ChannelType.PRIVATE) || isFromType(ChannelType.GROUP))
{
tmp = tmp.replace("<@" + user.getId() + '>', '@' + user.getName())
.replace("<@!" + user.getId() + '>', '@' + user.getName());
}
else
{
String name;
if (getGuild().isMember(user))
name = getGuild().getMember(user).getEffectiveName();
else name = user.getName();
tmp = tmp.replace("<@" + user.getId() + '>', '@' + name)
.replace("<@!" + user.getId() + '>', '@' + name);
}
}
for (Emote emote : getEmotes())
{
tmp = tmp.replace(emote.getAsMention(), ":" + emote.getName() + ":");
}
for (TextChannel mentionedChannel : mentionedChannels)
{
tmp = tmp.replace("<#" + mentionedChannel.getId() + '>', '#' + mentionedChannel.getName());
}
for (Role mentionedRole : mentionedRoles)
{
tmp = tmp.replace("<@&" + mentionedRole.getId() + '>', '@' + mentionedRole.getName());
}
subContent = tmp;
}
return subContent;
}
@Override
public String getRawContent()
{
return content;
}
@Override
public boolean isFromType(ChannelType type)
{
return getChannelType() == type;
}
@Override
public ChannelType getChannelType()
{
return channel.getType();
}
@Override
public MessageChannel getChannel()
{
return channel;
}
@Override
public PrivateChannel getPrivateChannel()
{
return isFromType(ChannelType.PRIVATE) ? (PrivateChannel) channel : null;
}
@Override
public Group getGroup()
{
return isFromType(ChannelType.GROUP) ? (Group) channel : null;
}
@Override
public TextChannel getTextChannel()
{
return isFromType(ChannelType.TEXT) ? (TextChannel) channel : null;
}
@Override
public Guild getGuild()
{
return isFromType(ChannelType.TEXT) ? getTextChannel().getGuild() : null;
}
@Override
public List<Attachment> getAttachments()
{
return Collections.unmodifiableList(attachments);
}
@Override
public List<MessageEmbed> getEmbeds()
{
return Collections.unmodifiableList(embeds);
}
@Override
public synchronized List<Emote> getEmotes()
{
if (this.emotes == null)
{
emotes = new LinkedList<>();
Matcher matcher = EMOTE_PATTERN.matcher(getRawContent());
while (matcher.find())
{
final String emoteIdString = matcher.group(2);
final long emoteId = Long.parseLong(emoteIdString);
String emoteName = matcher.group(1);
Emote emote = api.getEmoteById(emoteIdString);
if (emote == null)
emote = new EmoteImpl(emoteId, api).setName(emoteName);
emotes.add(emote);
}
emotes = Collections.unmodifiableList(emotes);
}
return emotes;
}
@Override
public List<MessageReaction> getReactions()
{
return Collections.unmodifiableList(new LinkedList<>(reactions));
}
@Override
public boolean isWebhookMessage()
{
return fromWebhook;
}
@Override
public boolean isTTS()
{
return isTTS;
}
@Override
public RestAction<Message> editMessage(String newContent)
{
return editMessage(new MessageBuilder().append(newContent).build());
}
@Override
public RestAction<Message> editMessage(MessageEmbed newContent)
{
return editMessage(new MessageBuilder().setEmbed(newContent).build());
}
@Override
public RestAction<Message> editMessageFormat(String format, Object... args)
{
Args.notBlank(format, "Format String");
return editMessage(new MessageBuilder().appendFormat(format, args).build());
}
@Override
public RestAction<Message> editMessage(Message newContent)
{
if (!api.getSelfUser().equals(getAuthor()))
throw new IllegalStateException("Attempted to update message that was not sent by this account. You cannot modify other User's messages!");
return getChannel().editMessageById(getIdLong(), newContent);
}
@Override
public AuditableRestAction<Void> delete()
{
if (!getJDA().getSelfUser().equals(getAuthor()))
{
if (isFromType(ChannelType.PRIVATE) || isFromType(ChannelType.GROUP))
throw new IllegalStateException("Cannot delete another User's messages in a Group or PrivateChannel.");
else if (!getGuild().getSelfMember()
.hasPermission((TextChannel) getChannel(), Permission.MESSAGE_MANAGE))
throw new PermissionException(Permission.MESSAGE_MANAGE);
}
return channel.deleteMessageById(getIdLong());
}
public MessageImpl setPinned(boolean pinned)
{
this.pinned = pinned;
return this;
}
public MessageImpl setMentionedUsers(List<User> mentionedUsers)
{
this.mentionedUsers = mentionedUsers;
return this;
}
public MessageImpl setMentionedChannels(List<TextChannel> mentionedChannels)
{
this.mentionedChannels = mentionedChannels;
return this;
}
public MessageImpl setMentionedRoles(List<Role> mentionedRoles)
{
this.mentionedRoles = mentionedRoles;
return this;
}
public MessageImpl setMentionsEveryone(boolean mentionsEveryone)
{
this.mentionsEveryone = mentionsEveryone;
return this;
}
public MessageImpl setTTS(boolean TTS)
{
isTTS = TTS;
return this;
}
public MessageImpl setTime(OffsetDateTime time)
{
this.time = time;
return this;
}
public MessageImpl setEditedTime(OffsetDateTime editedTime)
{
this.editedTime = editedTime;
return this;
}
public MessageImpl setAuthor(User author)
{
this.author = author;
return this;
}
public MessageImpl setContent(String content)
{
this.content = content;
return this;
}
public MessageImpl setAttachments(List<Attachment> attachments)
{
this.attachments = attachments;
return this;
}
public MessageImpl setEmbeds(List<MessageEmbed> embeds)
{
this.embeds = embeds;
return this;
}
public MessageImpl setReactions(List<MessageReaction> reactions)
{
this.reactions = reactions;
return this;
}
@Override
public boolean equals(Object o)
{
if (!(o instanceof MessageImpl))
return false;
MessageImpl oMsg = (MessageImpl) o;
return this == oMsg || this.id == oMsg.id;
}
@Override
public int hashCode()
{
return Long.hashCode(id);
}
@Override
public String toString()
{
return String.format("M:%#s:%.20s(%s)", author, this, getId());
}
public JSONObject toJSONObject()
{
JSONObject obj = new JSONObject();
obj.put("content", content);
obj.put("tts", isTTS);
if (!embeds.isEmpty())
obj.put("embed", ((MessageEmbedImpl) embeds.get(0)).toJSONObject());
return obj;
}
private void checkPermission(Permission permission)
{
if (channel.getType() == ChannelType.TEXT)
{
Channel location = (Channel) channel;
if (!location.getGuild().getSelfMember().hasPermission(location, permission))
throw new PermissionException(permission);
}
}
private void checkFake(IFakeable o, String name)
{
if (o.isFake())
throw new IllegalArgumentException("We are unable to use a fake " + name + " in this situation!");
}
@Override
public void formatTo(Formatter formatter, int flags, int width, int precision)
{
boolean upper = (flags & FormattableFlags.UPPERCASE) == FormattableFlags.UPPERCASE;
boolean leftJustified = (flags & FormattableFlags.LEFT_JUSTIFY) == FormattableFlags.LEFT_JUSTIFY;
boolean alt = (flags & FormattableFlags.ALTERNATE) == FormattableFlags.ALTERNATE;
String out = alt ? getRawContent() : getContent();
if (upper)
out = out.toUpperCase(formatter.locale());
try
{
Appendable appendable = formatter.out();
if (precision > -1 && out.length() > precision)
{
appendable.append(StringUtils.truncate(out, precision - 3)).append("...");
return;
}
if (leftJustified)
appendable.append(StringUtils.rightPad(out, width));
else
appendable.append(StringUtils.leftPad(out, width));
}
catch (IOException e)
{
throw new AssertionError(e);
}
}
private static class FormatToken {
public final String format;
public final int start;
public FormatToken(String format, int start) {
this.format = format;
this.start = start;
}
}
}