MAM results can be filtered by start and end dates

src/database/database.cpp

@@ -6,6 +6,7 @@
 #include <irc/iid.hpp>
 #include <uuid.h>
 #include <utils/get_first_non_empty.hpp>
+#include <utils/time.hpp>
 
 using namespace std::string_literals;
 
@@ -136,14 +137,30 @@ void Database::store_muc_message(const std::string& owner, const Iid& iid,
   line.update();
 }
 
-std::vector<db::MucLogLine> Database::get_muc_logs(const std::string& owner, const std::string& chan_name, const std::string& server, int limit)
+std::vector<db::MucLogLine> Database::get_muc_logs(const std::string& owner, const std::string& chan_name, const std::string& server,
+                                                   int limit, const std::string& start, const std::string& end)
 {
-  if (limit == -1)
-    limit = 1024;
-  const auto& res = litesql::select<db::MucLogLine>(*Database::db,
-                                                   db::MucLogLine::Owner == owner &&
-                                                   db::MucLogLine::IrcChanName == chan_name &&
-                                                   db::MucLogLine::IrcServerName == server).orderBy(db::MucLogLine::Id, false).limit(limit).all();
+  auto request = litesql::select<db::MucLogLine>(*Database::db,
+                                              db::MucLogLine::Owner == owner &&
+                                              db::MucLogLine::IrcChanName == chan_name &&
+                                              db::MucLogLine::IrcServerName == server);
+  request.orderBy(db::MucLogLine::Id, false);
+
+  if (limit >= 0)
+    request.limit(limit);
+  if (!start.empty())
+    {
+      const auto start_time = utils::parse_datetime(start);
+      if (start_time != -1)
+        request.where(db::MucLogLine::Date >= start_time);
+    }
+  if (!end.empty())
+    {
+      const auto end_time = utils::parse_datetime(end);
+      if (end_time != -1)
+        request.where(db::MucLogLine::Date <= end_time);
+    }
+  const auto& res = request.all();
   return {res.crbegin(), res.crend()};
 }
 
@@ -152,7 +169,6 @@ void Database::close()
   Database::db.reset(nullptr);
 }
 
-
 std::string Database::gen_uuid()
 {
   char uuid_str[37];

src/database/database.hpp

@@ -49,7 +49,7 @@ public:
                                                                                       const std::string& server,
                                                                                       const std::string& channel);
   static std::vector<db::MucLogLine> get_muc_logs(const std::string& owner, const std::string& chan_name, const std::string& server,
-                                                  int limit);
+                                                  int limit=-1, const std::string& before="", const std::string& after="");
   static void store_muc_message(const std::string& owner, const Iid& iid,
                                 time_point date, const std::string& body, const std::string& nick);
 

src/xmpp/biboumi_component.cpp

@@ -550,13 +550,36 @@ bool BiboumiComponent::handle_mam_request(const Stanza& stanza)
     Iid iid(to.local, {'#', '&'});
     if (iid.type == Iid::Type::Channel && to.resource.empty())
       {
-          const auto lines = Database::get_muc_logs(from.bare(), iid.get_local(), iid.get_server(), -1);
-          for (const db::MucLogLine& line: lines)
-            {
-                const auto queryid = query->get_tag("queryid");
-                if (!line.nick.value().empty())
-                  this->send_archived_message(line, to.full(), from.full(), queryid);
-            }
+        std::string start;
+        std::string end;
+        const XmlNode* x = query->get_child("x", DATAFORM_NS);
+        if (x)
+          {
+            const XmlNode* value;
+            const auto fields = x->get_children("field", DATAFORM_NS);
+            for (const auto& field: fields)
+              {
+                if (field->get_tag("var") == "start")
+                  {
+                    value = field->get_child("value", DATAFORM_NS);
+                    if (value)
+                      start = value->get_inner();
+                  }
+                else if (field->get_tag("var") == "end")
+                  {
+                    value = field->get_child("value", DATAFORM_NS);
+                    if (value)
+                      end = value->get_inner();
+                  }
+              }
+          }
+        const auto lines = Database::get_muc_logs(from.bare(), iid.get_local(), iid.get_server(), -1, start, end);
+        for (const db::MucLogLine& line: lines)
+        {
+          const auto queryid = query->get_tag("queryid");
+          if (!line.nick.value().empty())
+            this->send_archived_message(line, to.full(), from.full(), queryid);
+        }
         this->send_iq_result_full_jid(id, from.full(), to.full());
         return true;
       }