1 files changed, 426 insertions, 0 deletions
diff --git a/juick-server-core/src/main/java/com/juick/server/protocol/JuickProtocol.java b/juick-server-core/src/main/java/com/juick/server/protocol/JuickProtocol.java
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+++ b/juick-server-core/src/main/java/com/juick/server/protocol/JuickProtocol.java
@@ -0,0 +1,426 @@
+package com.juick.server.protocol;
+
+import com.juick.Message;
+import com.juick.Tag;
+import com.juick.User;
+import com.juick.formatters.PlainTextFormatter;
+import com.juick.server.helpers.TagStats;
+import com.juick.server.protocol.annotation.UserCommand;
+import com.juick.server.util.TagUtils;
+import com.juick.service.*;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.apache.commons.lang3.reflect.MethodUtils;
+
+import javax.inject.Inject;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+/**
+ * Created by oxpa on 22.03.16.
+ */
+
+public class JuickProtocol {
+
+    private String baseUri;
+    private ProtocolListener listener;
+
+    @Inject
+    UserService userService;
+    @Inject
+    TagService tagService;
+    @Inject
+    MessagesService messagesService;
+    @Inject
+    SubscriptionService subscriptionService;
+    @Inject
+    PMQueriesService pmQueriesService;
+    @Inject
+    PrivacyQueriesService privacyQueriesService;
+    @Inject
+    ShowQueriesService showQueriesService;
+
+    public JuickProtocol(String baseUri) {
+        this.baseUri = baseUri;
+    }
+
+    /**
+     * find command by pattern and invoke
+     * @param user who send command
+     * @param userInput given by user
+     * @return command result
+     * @throws InvocationTargetException
+     * @throws IllegalAccessException
+     * @throws NoSuchMethodException
+     */
+    public String getReply(User user, String userInput) throws InvocationTargetException,
+            IllegalAccessException, NoSuchMethodException {
+        Optional<Method> cmd = MethodUtils.getMethodsListWithAnnotation(getClass(), UserCommand.class).stream()
+                .filter(m -> Pattern.compile(m.getAnnotation(UserCommand.class).pattern(),
+                        m.getAnnotation(UserCommand.class).patternFlags()).matcher(userInput).matches())
+                .findFirst();
+        if (!cmd.isPresent()) {
+            // default command - post as new message
+            return postMessage(user, userInput.trim());
+        } else {
+            Matcher matcher = Pattern.compile(cmd.get().getAnnotation(UserCommand.class).pattern(),
+                    cmd.get().getAnnotation(UserCommand.class).patternFlags()).matcher(userInput.trim());
+            List<String> groups = new ArrayList<>();
+            while (matcher.find()) {
+                for (int i = 1; i <= matcher.groupCount(); i++) {
+                    groups.add(matcher.group(i));
+                }
+            }
+            return (String) getClass().getMethod(cmd.get().getName(), User.class, String[].class)
+                    .invoke(this, user, groups.toArray(new String[groups.size()]));
+        }
+    }
+
+    public String postMessage(User user, String input) {
+        List<Tag> tags = tagService.fromString(input, false);
+        String body = input.substring(TagUtils.toString(tags).length());
+        int mid = messagesService.createMessage(user.getUid(), body, null, tags);
+        subscriptionService.subscribeMessage(mid, user.getUid());
+        listener.messagePosted(messagesService.getMessage(mid));
+        return "New message posted.\n#" + mid + " " + baseUri + mid;
+    }
+
+    @UserCommand(pattern = "^#\\+$", help = "#+ - Show last Juick messages")
+    public String commandLast(User user, String... arguments) {
+        List<Integer> mids = messagesService.getAll(user.getUid(), 0);
+        List<Message> messages = messagesService.getMessages(mids);
+        return "Last messages: \n"
+                + messages.stream().sorted(Collections.reverseOrder()).map(PlainTextFormatter::formatPostSummary)
+                .collect(Collectors.joining("\n\n"));
+    }
+
+    @UserCommand(pattern = "^bl$", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "BL - Show your blacklist")
+    public String commandBL(User user_from, String... arguments) {
+        List<User> blusers;
+        List<String> bltags;
+
+        blusers = userService.getUserBLUsers(user_from.getUid());
+        bltags = tagService.getUserBLTags(user_from.getUid());
+
+
+        String txt = StringUtils.EMPTY;
+        if (bltags.size() > 0) {
+            for (String bltag : bltags) {
+                txt += "*" + bltag + "\n";
+            }
+
+            if (blusers.size() > 0) {
+                txt += "\n";
+            }
+        }
+        if (blusers.size() > 0) {
+            for (User bluser : blusers) {
+                txt += "@" + bluser.getName() + "\n";
+            }
+        }
+        if (txt.isEmpty()) {
+            txt = "You don't have any users or tags in your blacklist.";
+        }
+        return txt;
+    }
+
+    @UserCommand(pattern = "^bl\\s+@([^\\s\\n\\+]+)", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "BL @username - add @username to your blacklist")
+    public String blacklistUser(User from, String... arguments) {
+        User blUser = userService.getUserByName(arguments[0]);
+        if (blUser != null) {
+            PrivacyQueriesService.PrivacyResult result = privacyQueriesService.blacklistUser(from, blUser);
+            if (result == PrivacyQueriesService.PrivacyResult.Added) {
+                return "User added to your blacklist";
+            } else {
+                return "User removed from your blacklist";
+            }
+        }
+        return "User not found";
+    }
+
+    @UserCommand(pattern = "^bl\\s\\*(\\S+)$", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "BL *tag - add *tag to your blacklist")
+    public String blacklistTag(User from, String... arguments) {
+        User blUser = userService.getUserByName(arguments[0]);
+        if (blUser != null) {
+            Tag tag = tagService.getTag(arguments[0], false);
+            if (tag != null) {
+                PrivacyQueriesService.PrivacyResult result = privacyQueriesService.blacklistTag(from, tag);
+                if (result == PrivacyQueriesService.PrivacyResult.Added) {
+                    return "Tag added to your blacklist";
+                } else {
+                    return "Tag removed from your blacklist";
+                }
+            }
+        }
+        return "Tag not found";
+    }
+
+    @UserCommand(pattern = "@", help = "@ - Show recommendations and popular personal blogs")
+    public String commandUsers(User currentUser, String... args) {
+        StringBuilder msg = new StringBuilder();
+        msg.append("Recommended blogs");
+        List<String> recommendedUsers = showQueriesService.getRecommendedUsers(currentUser);
+        if (recommendedUsers.size() > 0) {
+            for (String user : recommendedUsers) {
+                msg.append("\n@").append(user);
+            }
+        } else {
+            msg.append("\nNo recommendations now. Subscribe to more blogs. ;)");
+        }
+        msg.append("\n\nTop 10 personal blogs:");
+        List<String> topUsers = showQueriesService.getTopUsers();
+        if (topUsers.size() > 0) {
+            for (String user : topUsers) {
+                msg.append("\n@").append(user);
+            }
+        } else {
+            msg.append("\nNo top users. Empty DB? ;)");
+        }
+        return msg.toString();
+    }
+
+    @UserCommand(pattern = "\\*", help = "* - Show your tags")
+    public String commandTags(User currentUser, String... args) {
+        List<TagStats> tags = tagService.getUserTagStats(currentUser.getUid());
+        String msg = "Your tags: (tag - messages)\n" +
+                tags.stream()
+                        .map(t -> String.format("\n*%s - %d", t.getTag().getName(), t.getUsageCount())).collect(Collectors.joining());
+        return msg;
+    }
+
+    @UserCommand(pattern = "S", help = "S - Show your subscriptions")
+    public String commandSubscriptions(User currentUser, String... args) {
+        List<User> friends = userService.getUserFriends(currentUser.getUid());
+        List<String> tags = subscriptionService.getSubscribedTags(currentUser);
+        String msg = friends.size() > 0 ? "You are subscribed to users:" + friends.stream().map(u -> "\n@" + u.getName())
+                .collect(Collectors.joining())
+                : "You are not subscribed to any user.";
+        msg += tags.size() > 0 ? "\nYou are subscribed to tags:" + tags.stream().map(t -> "\n*" + t)
+                .collect(Collectors.joining())
+                : "\nYou are not subscribed to any tag.";
+        return msg;
+    }
+
+    @UserCommand(pattern = "!", help = "! - Show your favorite messages")
+    public String commandFavorites(User currentUser, String... args) {
+        List<Integer> mids = messagesService.getUserRecommendations(currentUser.getUid(), 0);
+        if (mids.size() > 0) {
+            List<Message> messages = messagesService.getMessages(mids);
+            return "Favorite messages: \n" + String.join("\n", messages.stream().map(PlainTextFormatter::formatPost)
+                    .collect(Collectors.toList()));
+        }
+        return "No favorite messages, try to \"like\" something ;)";
+    }
+
+    @UserCommand(pattern = "^\\@([^\\s\\n\\+]+)(\\+?)$",
+            help = "@username+ - Show user's info and last 10 messages (@username++ - second page, ..)")
+    public String commandUser(User user, String... arguments) {
+        User blogUser = userService.getUserByName(arguments[0]);
+        int page = arguments[1].length();
+        if (blogUser.getUid() > 0) {
+            List<Integer> mids = messagesService.getUserBlog(blogUser.getUid(), 0, page);
+            List<Message> messages = messagesService.getMessages(mids);
+            return String.format("Last messages from @%s:\n%s", arguments[0],
+                    String.join("\n", messages.stream()
+                            .map(PlainTextFormatter::formatPost).collect(Collectors.toList())));
+        }
+        return "User not found";
+    }
+
+    @UserCommand(pattern = "^d\\s*\\#([0-9]+)$", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "D #12345 - delete the message")
+    public String commandDel(User user, String... args) {
+        int mid = NumberUtils.toInt(args[0], 0);
+        if (messagesService.deleteMessage(user.getUid(), mid)) {
+            return String.format("Message %s deleted", mid);
+        }
+        return "Error";
+    }
+
+    @UserCommand(pattern = "^login$", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "LOGIN - log in to Juick website")
+    public String commandLogin(User user, String... arguments) {
+        return baseUri + "?" + userService.getHashByUID(user.getUid());
+    }
+
+    @UserCommand(pattern = "^(#+)$", help = "# - Show last messages from your feed (## - second page, ...)")
+    public String commandMyFeed(User user, String... arguments) {
+        // number of # is the page count
+        int page = arguments[0].length() - 1;
+        List<Integer> mids = messagesService.getMyFeed(user.getUid(), page);
+        List<Message> messages = messagesService.getMessages(mids);
+        // TODO: add instructions for empty feed
+        return "Your feed: \n" + String.join("\n",
+                messages.stream().map(PlainTextFormatter::formatPost).collect(Collectors.toList()));
+    }
+
+    @UserCommand(pattern = "^(on|off)$", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "ON/OFF - Enable/disable subscriptions delivery")
+    public String commandOnOff(User user, String[] input) {
+        UserService.ActiveStatus newStatus;
+        String retValUpdated;
+        if (input[0].toLowerCase().equals("on")) {
+            newStatus = UserService.ActiveStatus.Active;
+            retValUpdated = "Notifications are activated for " + user.getJid();
+        } else {
+            newStatus = UserService.ActiveStatus.Inactive;
+            retValUpdated = "Notifications are disabled for " + user.getJid();
+        }
+
+        if (userService.setActiveStatusForJID(user.getJid(), newStatus)) {
+            return retValUpdated;
+        } else {
+            return String.format("Subscriptions status for %s was not changed", user.getJid());
+        }
+    }
+
+    @UserCommand(pattern = "^ping$", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "PING - returns you a PONG")
+    public String commandPing(User user, String[] input) {
+        return "PONG";
+    }
+
+    @UserCommand(pattern = "^\\@(\\S+)\\s+([\\s\\S]+)$", help = "@username message - send PM to username")
+    public String commandPM(User user_from, String... arguments) {
+        String user_to = arguments[0];
+        String body = arguments[1];
+
+        User toUser = userService.getUserByName(user_to);
+
+        if (toUser.getUid() > 0) {
+            if (!userService.isInBLAny(toUser.getUid(), user_from.getUid())) {
+                if (pmQueriesService.createPM(user_from.getUid(), toUser.getUid(), body)) {
+                    listener.privateMessage(user_from, toUser, body);
+                    return "Private message sent";
+                }
+            }
+        }
+        return "Error";
+    }
+
+    @UserCommand(pattern = "^#(\\d+)(\\+?)$", help = "#1234 - Show message (#1234+ - message with replies)")
+    public String commandShow(User user, String... arguments) {
+        boolean showReplies = arguments[1].length() > 0;
+        int mid = NumberUtils.toInt(arguments[0], 0);
+        if (mid == 0) {
+            return "Error";
+        }
+        Message msg = messagesService.getMessage(mid);
+        if (msg != null) {
+            if (showReplies) {
+                List<Message> replies = messagesService.getReplies(mid);
+                replies.add(0, msg);
+                return String.join("\n",
+                        replies.stream().map(PlainTextFormatter::formatPost).collect(Collectors.toList()));
+            }
+            return PlainTextFormatter.formatPost(msg);
+        }
+        return "Message not found";
+    }
+    @UserCommand(pattern = "^(#|\\.)(\\d+)((\\.|\\-|\\/)(\\d+))?\\s([\\s\\S]+)",
+    help = "#1234 *tag *tag2 - edit tags\n#1234 text - reply to message")
+    public String EditOrReply(User user, String... args) {
+        int mid = NumberUtils.toInt(args[1]);
+        int rid = NumberUtils.toInt(args[4], 0);
+        String txt = args[5];
+        List<Tag> messageTags = tagService.fromString(txt, true);
+        if (messageTags.size() > 0) {
+            if (user.getUid() != messagesService.getMessageAuthor(mid).getUid()) {
+                return "It is not your message";
+            }
+            tagService.updateTags(mid, messageTags);
+            return "Tags are updated";
+        } else {
+            int newrid = messagesService.createReply(mid, rid, user.getUid(), txt, null);
+            listener.messagePosted(messagesService.getReply(mid, newrid));
+            return "Reply posted.\n#" + mid + "/" + newrid + " "
+                    + baseUri + mid + "#" + newrid;
+        }
+    }
+
+    @UserCommand(pattern = "^(s|u)\\s+#(\\d+)$", help = "S #1234 - subscribe to comments",
+            patternFlags = Pattern.CASE_INSENSITIVE)
+    public String commandSubscribeMessage(User user, String... args) {
+        boolean subscribe = args[0].equalsIgnoreCase("s");
+        int mid = NumberUtils.toInt(args[1], 0);
+        if (messagesService.getMessage(mid) != null) {
+            if (subscribe) {
+                if (subscriptionService.subscribeMessage(mid, user.getUid())) {
+                    return "Subscribed";
+                }
+            } else {
+                if (subscriptionService.unSubscribeMessage(mid, user.getUid())) {
+                    return "Unsubscribed from #" + mid;
+                }
+                return "You was not subscribed to #" + mid;
+            }
+        }
+        return "Error";
+    }
+    @UserCommand(pattern = "^(s|u)\\s+\\@(\\S+)$", help = "S @user - subscribe to user's posts",
+            patternFlags = Pattern.CASE_INSENSITIVE)
+    public String commandSubscribeUser(User user, String... args) {
+        boolean subscribe = args[0].equalsIgnoreCase("s");
+        User toUser = userService.getUserByName(args[1]);
+        if (toUser.getUid() > 0) {
+            if (subscribe) {
+                if (subscriptionService.subscribeUser(user, toUser)) {
+                    listener.userSubscribed(user, toUser);
+                    return "Subscribed";
+                    // TODO: already subscribed case
+                }
+            } else {
+                if (subscriptionService.unSubscribeUser(user, toUser)) {
+                    return "Unsubscribed from @" + toUser.getName();
+                }
+                return "You was not subscribed to @" + toUser.getName();
+            }
+        }
+        return "Error";
+    }
+    @UserCommand(pattern = "^(s|u)\\s+\\*(\\S+)$", help = "S *tag - subscribe to tag" +
+            "\nU *tag - unsubscribe from tag", patternFlags = Pattern.CASE_INSENSITIVE)
+    public String commandSubscribeTag(User user, String... args) {
+        boolean subscribe = args[0].equalsIgnoreCase("s");
+        Tag tag = tagService.getTag(args[1], true);
+        if (subscribe) {
+            if (subscriptionService.subscribeTag(user, tag)) {
+                return "Subscribed";
+            }
+        } else {
+            if (subscriptionService.unSubscribeTag(user, tag)) {
+                return "Unsubscribed from " + tag.getName();
+            }
+            return "You was not subscribed to " + tag.getName();
+        }
+        return "Error";
+    }
+
+    @UserCommand(pattern = "^help$", patternFlags = Pattern.CASE_INSENSITIVE,
+            help = "HELP - returns this help message")
+    public String commandHelp(User user, String[] input) {
+        return Arrays.stream(getClass().getDeclaredMethods())
+                .filter(m -> m.isAnnotationPresent(UserCommand.class))
+                .map(m -> m.getAnnotation(UserCommand.class).help())
+                .collect(Collectors.joining("\n"));
+    }
+
+    public String getBaseUri() {
+        return baseUri;
+    }
+
+    public ProtocolListener getListener() {
+        return listener;
+    }
+
+    public void setListener(ProtocolListener listener) {
+        this.listener = listener;
+    }
+}