diff options
Diffstat (limited to 'libdino/src/service/search_processor.vala')
| -rw-r--r-- | libdino/src/service/search_processor.vala | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/libdino/src/service/search_processor.vala b/libdino/src/service/search_processor.vala new file mode 100644 index 00000000..5a14dfe7 --- /dev/null +++ b/libdino/src/service/search_processor.vala @@ -0,0 +1,263 @@ +using Gee; + +using Xmpp; +using Qlite; +using Dino.Entities; + +namespace Dino { + +public class SearchProcessor : StreamInteractionModule, Object { + public static ModuleIdentity<SearchProcessor> IDENTITY = new ModuleIdentity<SearchProcessor>("search_processor"); + public string id { get { return IDENTITY.id; } } + + private StreamInteractor stream_interactor; + private Database db; + + public static void start(StreamInteractor stream_interactor, Database db) { + SearchProcessor m = new SearchProcessor(stream_interactor, db); + stream_interactor.add_module(m); + } + + public SearchProcessor(StreamInteractor stream_interactor, Database db) { + this.stream_interactor = stream_interactor; + this.db = db; + } + + private QueryBuilder prepare_search(string query, bool join_content) { + string words = ""; + string? with = null; + string? in_ = null; + string? from = null; + foreach(string word in query.split(" ")) { + if (word.has_prefix("with:")) { + if (with == null) { + with = word.substring(5); + } else { + return db.message.select().where("0"); + } + } else if (word.has_prefix("in:")) { + if (in_ == null) { + in_ = word.substring(3); + } else { + return db.message.select().where("0"); + } + } else if (word.has_prefix("from:")) { + if (from == null) { + from = word.substring(5); + } else { + return db.message.select().where("0"); + } + } else { + words += word + "* "; + } + } + if (in_ != null && with != null) { + return db.message.select().where("0"); + } + + QueryBuilder rows = db.message + .match(db.message.body, words) + .order_by(db.message.id, "DESC") + .join_with(db.jid, db.jid.id, db.message.counterpart_id) + .join_with(db.account, db.account.id, db.message.account_id) + .outer_join_with(db.real_jid, db.real_jid.message_id, db.message.id) + .with(db.account.enabled, "=", true); + if (join_content) { + rows.join_on(db.content, "message.id=content_item.foreign_id AND content_item.content_type=1") + .with(db.content.content_type, "=", 1); + } + if (with != null) { + if (with.index_of("/") > 0) { + rows.with(db.message.type_, "=", Message.Type.GROUPCHAT_PM) + .with(db.jid.bare_jid, "LIKE", with.substring(0, with.index_of("/"))) + .with(db.message.counterpart_resource, "LIKE", with.substring(with.index_of("/") + 1)); + } else { + rows.where(@"($(db.message.type_) = $((int)Message.Type.CHAT) AND $(db.jid.bare_jid) LIKE ?)" + + @" OR ($(db.message.type_) = $((int)Message.Type.GROUPCHAT_PM) AND $(db.real_jid.real_jid) LIKE ?)" + + @" OR ($(db.message.type_) = $((int)Message.Type.GROUPCHAT_PM) AND $(db.message.counterpart_resource) LIKE ?)", {with, with, with}); + } + } else if (in_ != null) { + rows.with(db.jid.bare_jid, "LIKE", in_) + .with(db.message.type_, "=", Message.Type.GROUPCHAT); + } + if (from != null) { + rows.where(@"($(db.message.direction) = 1 AND $(db.account.bare_jid) LIKE ?)" + + @" OR ($(db.message.direction) = 1 AND $(db.message.type_) IN ($((int)Message.Type.GROUPCHAT), $((int)Message.Type.GROUPCHAT_PM)) AND $(db.message.our_resource) LIKE ?)" + + @" OR ($(db.message.direction) = 0 AND $(db.message.type_) = $((int)Message.Type.CHAT) AND $(db.jid.bare_jid) LIKE ?)" + + @" OR ($(db.message.direction) = 0 AND $(db.message.type_) IN ($((int)Message.Type.GROUPCHAT), $((int)Message.Type.GROUPCHAT_PM)) AND $(db.real_jid.real_jid) LIKE ?)" + + @" OR ($(db.message.direction) = 0 AND $(db.message.type_) IN ($((int)Message.Type.GROUPCHAT), $((int)Message.Type.GROUPCHAT_PM)) AND $(db.message.counterpart_resource) LIKE ?)", {from, from, from, from, from}); + } + return rows; + } + + public Gee.List<SearchSuggestion> suggest_auto_complete(string query, int cursor_position, int limit = 5) { + int after_prev_space = query.substring(0, cursor_position).last_index_of(" ") + 1; + int next_space = query.index_of(" ", after_prev_space); + if (next_space < 0) next_space = query.length; + string current_query = query.substring(after_prev_space, next_space - after_prev_space); + Gee.List<SearchSuggestion> suggestions = new ArrayList<SearchSuggestion>(); + + if (current_query.has_prefix("from:")) { + if (cursor_position < after_prev_space + 5) return suggestions; + string current_from = current_query.substring(5); + string[] splitted = query.split(" "); + foreach(string s in splitted) { + if (s.has_prefix("from:") && s != "from:" + current_from) { + // Already have an from: filter -> no useful autocompletion possible + return suggestions; + } + } + string? current_in = null; + string? current_with = null; + foreach(string s in splitted) { + if (s.has_prefix("in:")) { + current_in = s.substring(3); + } else if (s.has_prefix("with:")) { + current_with = s.substring(5); + } + } + if (current_in != null && current_with != null) { + // in: and with: -> no useful autocompletion possible + return suggestions; + } + if (current_with != null) { + // Can only be the other one or us + + // Normal chat + QueryBuilder chats = db.conversation.select() + .join_with(db.jid, db.jid.id, db.conversation.jid_id) + .join_with(db.account, db.account.id, db.conversation.account_id) + .with(db.jid.bare_jid, "=", current_with) + .with(db.account.enabled, "=", true) + .with(db.conversation.type_, "=", Conversation.Type.CHAT) + .order_by(db.conversation.last_active, "DESC"); + foreach(Row chat in chats) { + if (suggestions.size == 0) { + suggestions.add(new SearchSuggestion(new Account.from_row(db, chat), new Jid(chat[db.jid.bare_jid]), "from:"+chat[db.jid.bare_jid], after_prev_space, next_space)); + } + suggestions.add(new SearchSuggestion(new Account.from_row(db, chat), new Jid(chat[db.account.bare_jid]), "from:"+chat[db.account.bare_jid], after_prev_space, next_space)); + } + return suggestions; + } + if (current_in != null) { + // All members of the MUC with history + QueryBuilder msgs = db.message.select() + .select_string(@"account.*, $(db.message.counterpart_resource)") + .join_with(db.jid, db.jid.id, db.message.counterpart_id) + .join_with(db.account, db.account.id, db.message.account_id) + .with(db.jid.bare_jid, "=", current_in) + .with(db.account.enabled, "=", true) + .with(db.message.type_, "=", Message.Type.GROUPCHAT) + .with(db.message.counterpart_resource, "LIKE", @"%$current_from%") + .group_by({db.message.counterpart_resource}) + .order_by_name(@"MAX($(db.message.time))", "DESC") + .limit(5); + foreach(Row msg in msgs) { + suggestions.add(new SearchSuggestion(new Account.from_row(db, msg), new Jid(current_in).with_resource(msg[db.message.counterpart_resource]), "from:"+msg[db.message.counterpart_resource], after_prev_space, next_space)); + } + } + // TODO: auto complete from + } else if (current_query.has_prefix("with:")) { + if (cursor_position < after_prev_space + 5) return suggestions; + string current_with = current_query.substring(5); + string[] splitted = query.split(" "); + foreach(string s in splitted) { + if ((s.has_prefix("with:") && s != "with:" + current_with) || s.has_prefix("in:")) { + // Already have an in: or with: filter -> no useful autocompletion possible + return suggestions; + } + } + + // Normal chat + QueryBuilder chats = db.conversation.select() + .join_with(db.jid, db.jid.id, db.conversation.jid_id) + .join_with(db.account, db.account.id, db.conversation.account_id) + .outer_join_on(db.roster, @"$(db.jid.bare_jid) = $(db.roster.jid) AND $(db.account.id) = $(db.roster.account_id)") + .where(@"$(db.jid.bare_jid) LIKE ? OR $(db.roster.handle) LIKE ?", {@"%$current_with%", @"%$current_with%"}) + .with(db.account.enabled, "=", true) + .with(db.conversation.type_, "=", Conversation.Type.CHAT) + .order_by(db.conversation.last_active, "DESC") + .limit(limit); + foreach(Row chat in chats) { + suggestions.add(new SearchSuggestion(new Account.from_row(db, chat), new Jid(chat[db.jid.bare_jid]), "with:"+chat[db.jid.bare_jid], after_prev_space, next_space) { order = chat[db.conversation.last_active]}); + } + + // Groupchat PM + if (suggestions.size < 5) { + chats = db.conversation.select() + .join_with(db.jid, db.jid.id, db.conversation.jid_id) + .join_with(db.account, db.account.id, db.conversation.account_id) + .where(@"$(db.jid.bare_jid) LIKE ? OR $(db.conversation.resource) LIKE ?", {@"%$current_with%", @"%$current_with%"}) + .with(db.account.enabled, "=", true) + .with(db.conversation.type_, "=", Conversation.Type.GROUPCHAT_PM) + .order_by(db.conversation.last_active, "DESC") + .limit(limit - suggestions.size); + foreach(Row chat in chats) { + suggestions.add(new SearchSuggestion(new Account.from_row(db, chat), new Jid(chat[db.jid.bare_jid]).with_resource(chat[db.conversation.resource]), "with:"+chat[db.jid.bare_jid]+"/"+chat[db.conversation.resource], after_prev_space, next_space) { order = chat[db.conversation.last_active]}); + } + suggestions.sort((a, b) => (int)(b.order - a.order)); + } + } else if (current_query.has_prefix("in:")) { + if (cursor_position < after_prev_space + 3) return suggestions; + string current_in = current_query.substring(3); + string[] splitted = query.split(" "); + foreach(string s in splitted) { + if ((s.has_prefix("in:") && s != "in:" + current_in) || s.has_prefix("with:")) { + // Already have an in: or with: filter -> no useful autocompletion possible + return suggestions; + } + } + QueryBuilder groupchats = db.conversation.select() + .join_with(db.jid, db.jid.id, db.conversation.jid_id) + .join_with(db.account, db.account.id, db.conversation.account_id) + .with(db.jid.bare_jid, "LIKE", @"%$current_in%") + .with(db.account.enabled, "=", true) + .with(db.conversation.type_, "=", Conversation.Type.GROUPCHAT) + .order_by(db.conversation.last_active, "DESC") + .limit(limit); + foreach(Row chat in groupchats) { + suggestions.add(new SearchSuggestion(new Account.from_row(db, chat), new Jid(chat[db.jid.bare_jid]), "in:"+chat[db.jid.bare_jid], after_prev_space, next_space)); + } + } else { + // Other auto complete? + } + return suggestions; + } + + public Gee.List<MessageItem> match_messages(string query, int offset = -1) { + Gee.List<MessageItem> ret = new ArrayList<MessageItem>(); + QueryBuilder rows = prepare_search(query, true).limit(10); + if (offset > 0) { + rows.offset(offset); + } + foreach (Row row in rows) { + Message message = new Message.from_row(db, row); + Conversation? conversation = stream_interactor.get_module(ConversationManager.IDENTITY).get_conversation_for_message(message); + ret.add(new MessageItem(message, conversation, row[db.content.id])); + } + return ret; + } + + public int count_match_messages(string query) { + return (int)prepare_search(query, false).select({db.message.id}).count(); + } +} + +public class SearchSuggestion : Object { + public Account account { get; private set; } + public Jid? jid { get; private set; } + public string completion { get; private set; } + public int start_index { get; private set; } + public int end_index { get; private set; } + public long order { get; set; } + + public SearchSuggestion(Account account, Jid? jid, string completion, int start_index, int end_index) { + this.account = account; + this.jid = jid; + this.completion = completion; + this.start_index = start_index; + this.end_index = end_index; + } +} + +} |