llgroupmgr.cpp

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#include "llviewerprecompiledheaders.h"

#include "llgroupmgr.h"

#include <vector>
#include <algorithm>

#include "llagent.h"
#include "llui.h"
#include "message.h"
#include "roles_constants.h"
#include "lltransactiontypes.h"
#include "llstatusbar.h"
#include "viewer.h"
#include "lleconomy.h"
#include "llviewerwindow.h"
#include "llfloaterdirectory.h"
#include "llfloatergroupinfo.h"
#include "lluictrlfactory.h"

LLGroupMgr sGroupMgr; // use local instance so that it gets cleaned up on application exit
LLGroupMgr* gGroupMgr = &sGroupMgr;

const U32 MAX_CACHED_GROUPS = 10;

//
// LLRoleActionSet
//
LLRoleActionSet::LLRoleActionSet()
: mActionSetData(NULL)
{ }

LLRoleActionSet::~LLRoleActionSet()
{
        delete mActionSetData;
        std::for_each(mActions.begin(), mActions.end(), DeletePointer());
}

//
// LLGroupMemberData
//

LLGroupMemberData::LLGroupMemberData(const LLUUID& id, 
                                                                                S32 contribution,
                                                                                U64 agent_powers,
                                                                                const std::string& title,
                                                                                const std::string& online_status,
                                                                                BOOL is_owner) : 
        mID(id), 
        mContribution(contribution), 
        mAgentPowers(agent_powers), 
        mTitle(title), 
        mOnlineStatus(online_status),
        mIsOwner(is_owner)
{
}

LLGroupMemberData::~LLGroupMemberData()
{
}

void LLGroupMemberData::addRole(const LLUUID& role, LLGroupRoleData* rd)
{
        mRoles[role] = rd;
}

bool LLGroupMemberData::removeRole(const LLUUID& role)
{
        std::map<LLUUID,LLGroupRoleData*>::iterator it = mRoles.find(role);

        if (it != mRoles.end())
        {
                mRoles.erase(it);
                return true;
        }

        return false;
}

//
// LLGroupRoleData
//

LLGroupRoleData::LLGroupRoleData(const LLUUID& role_id, 
                                                                const std::string& role_name,
                                                                const std::string& role_title,
                                                                const std::string& role_desc,
                                                                const U64 role_powers,
                                                                const S32 member_count) :
        mRoleID(role_id),
        mMemberCount(member_count),
        mMembersNeedsSort(FALSE)
{
        mRoleData.mRoleName = role_name;
        mRoleData.mRoleTitle = role_title;
        mRoleData.mRoleDescription = role_desc;
        mRoleData.mRolePowers = role_powers;
        mRoleData.mChangeType = RC_UPDATE_NONE;
}

LLGroupRoleData::LLGroupRoleData(const LLUUID& role_id, 
                                                                LLRoleData role_data,
                                                                const S32 member_count) :
        mRoleID(role_id),
        mRoleData(role_data),
        mMemberCount(member_count),
        mMembersNeedsSort(FALSE)
{

}

LLGroupRoleData::~LLGroupRoleData()
{       
}

S32 LLGroupRoleData::getMembersInRole(std::vector<LLUUID> members,
                                                                          BOOL needs_sort)
{
        if (mRoleID.isNull())
        {
                // This is the everyone role, just return the size of members, 
                // because everyone is in the everyone role.
                return members.size();
        }

        // Sort the members list, if needed.
        if (mMembersNeedsSort)
        {
                std::sort(mMemberIDs.begin(), mMemberIDs.end());
                mMembersNeedsSort = FALSE;
        }
        if (needs_sort)
        {
                // Sort the members parameter.
                std::sort(members.begin(), members.end());
        }

        // Return the number of members in the intersection.
        S32 max_size = llmin( members.size(), mMemberIDs.size() );
        std::vector<LLUUID> in_role( max_size );
        std::vector<LLUUID>::iterator in_role_end;
        in_role_end = std::set_intersection(mMemberIDs.begin(), mMemberIDs.end(),
                                                                        members.begin(), members.end(),
                                                                        in_role.begin());
        return in_role_end - in_role.begin();
}
                          
void LLGroupRoleData::addMember(const LLUUID& member)
{
        mMembersNeedsSort = TRUE;
        mMemberIDs.push_back(member);
}

bool LLGroupRoleData::removeMember(const LLUUID& member)
{
        std::vector<LLUUID>::iterator it = std::find(mMemberIDs.begin(),mMemberIDs.end(),member);

        if (it != mMemberIDs.end())
        {
                mMembersNeedsSort = TRUE;
                mMemberIDs.erase(it);
                return true;
        }

        return false;
}

void LLGroupRoleData::clearMembers()
{
        mMembersNeedsSort = FALSE;
        mMemberIDs.clear();
}


//
// LLGroupMgrGroupData
//

LLGroupMgrGroupData::LLGroupMgrGroupData(const LLUUID& id) : 
        mID(id), 
        mShowInList(TRUE), 
        mOpenEnrollment(FALSE), 
        mMembershipFee(0),
        mAllowPublish(FALSE),
        mListInProfile(FALSE),
        mMaturePublish(FALSE),
        mChanged(FALSE),
        mMemberCount(0),
        mRoleCount(0),
        mReceivedRoleMemberPairs(0),
        mMemberDataComplete(FALSE),
        mRoleDataComplete(FALSE),
        mRoleMemberDataComplete(FALSE),
        mGroupPropertiesDataComplete(FALSE),
        mPendingRoleMemberRequest(FALSE)
{
}

BOOL LLGroupMgrGroupData::getRoleData(const LLUUID& role_id, LLRoleData& role_data)
{
        std::map<LLUUID,LLRoleData>::const_iterator it;

        // Do we have changes for it?
        it = mRoleChanges.find(role_id);
        if (it != mRoleChanges.end()) 
        {
                if ((*it).second.mChangeType == RC_DELETE) return FALSE;

                role_data = (*it).second;
                return TRUE;
        }

        // Ok, no changes, hasn't been deleted, isn't a new role, just find the role.
        role_list::const_iterator rit = mRoles.find(role_id);
        if (rit != mRoles.end())
        {
                role_data = (*rit).second->getRoleData();
                return TRUE;
        }

        // This role must not exist.
        return FALSE;
}


void LLGroupMgrGroupData::setRoleData(const LLUUID& role_id, LLRoleData role_data)
{
        // If this is a newly created group, we need to change the data in the created list.
        std::map<LLUUID,LLRoleData>::iterator it;
        it = mRoleChanges.find(role_id);
        if (it != mRoleChanges.end())
        {
                if ((*it).second.mChangeType == RC_CREATE)
                {
                        role_data.mChangeType = RC_CREATE;
                        mRoleChanges[role_id] = role_data;
                        return;
                }
                else if ((*it).second.mChangeType == RC_DELETE)
                {
                        // Don't do anything for a role being deleted.
                        return;
                }
        }

        // Not a new role, so put it in the changes list.
        LLRoleData old_role_data;
        role_iter rit = mRoles.find(role_id);
        if (rit != mRoles.end())
        {
                bool data_change = ( ((*rit).second->mRoleData.mRoleDescription != role_data.mRoleDescription)
                                                        || ((*rit).second->mRoleData.mRoleName != role_data.mRoleName)
                                                        || ((*rit).second->mRoleData.mRoleTitle != role_data.mRoleTitle) );
                bool powers_change = ((*rit).second->mRoleData.mRolePowers != role_data.mRolePowers);
                
                if (!data_change && !powers_change)
                {
                        // We are back to the original state, the changes have been 'undone' so take out the change.
                        mRoleChanges.erase(role_id);
                        return;
                }

                if (data_change && powers_change)
                {
                        role_data.mChangeType = RC_UPDATE_ALL;
                }
                else if (data_change)
                {
                        role_data.mChangeType = RC_UPDATE_DATA;
                }
                else
        {
                        role_data.mChangeType = RC_UPDATE_POWERS;
                }

                mRoleChanges[role_id] = role_data;
        }
        else
                {
                llwarns << "Change being made to non-existant role " << role_id << llendl;
        }
}

BOOL LLGroupMgrGroupData::pendingRoleChanges()
{
        return (!mRoleChanges.empty());
}

// This is a no-op if the role has already been created.
void LLGroupMgrGroupData::createRole(const LLUUID& role_id, LLRoleData role_data)
{
        if (mRoleChanges.find(role_id) != mRoleChanges.end())
        {
                llwarns << "create role for existing role! " << role_id << llendl;
        }
        else
        {
                role_data.mChangeType = RC_CREATE;
                mRoleChanges[role_id] = role_data;
        }
}

void LLGroupMgrGroupData::deleteRole(const LLUUID& role_id)
{
        std::map<LLUUID,LLRoleData>::iterator it;

        // If this was a new role, just discard it.
        it = mRoleChanges.find(role_id);
        if (it != mRoleChanges.end() 
                && (*it).second.mChangeType == RC_CREATE)
        {
                mRoleChanges.erase(it);
                return;
        }

        LLRoleData rd;
        rd.mChangeType = RC_DELETE;
        mRoleChanges[role_id] = rd;
}

void LLGroupMgrGroupData::addRolePower(const LLUUID &role_id, U64 power)
{
        LLRoleData rd;
        if (getRoleData(role_id,rd))
        {       
                rd.mRolePowers |= power;
                setRoleData(role_id,rd);
        }
        else
        {
                llwarns << "addRolePower: no role data found for " << role_id << llendl;
        }
}

void LLGroupMgrGroupData::removeRolePower(const LLUUID &role_id, U64 power)
{
        LLRoleData rd;
        if (getRoleData(role_id,rd))
        {
                rd.mRolePowers &= ~power;
                setRoleData(role_id,rd);
        }
        else
        {
                llwarns << "removeRolePower: no role data found for " << role_id << llendl;
        }
}

U64 LLGroupMgrGroupData::getRolePowers(const LLUUID& role_id)
{
        LLRoleData rd;
        if (getRoleData(role_id,rd))
        {
                return rd.mRolePowers;
        }
        else
        {
                llwarns << "getRolePowers: no role data found for " << role_id << llendl;
                return GP_NO_POWERS;
        }
}

void LLGroupMgrGroupData::removeData()
{
        // Remove member data first, because removeRoleData will walk the member list
        removeMemberData();
        removeRoleData();
}

void LLGroupMgrGroupData::removeMemberData()
{
        for (member_iter mi = mMembers.begin(); mi != mMembers.end(); ++mi)
        {
                delete mi->second;
        }
        mMembers.clear();
        mMemberDataComplete = FALSE;
}

void LLGroupMgrGroupData::removeRoleData()
{
        for (member_iter mi = mMembers.begin(); mi != mMembers.end(); ++mi)
        {
                LLGroupMemberData* data = mi->second;
                if (data)
                {
                        data->clearRoles();
                }
        }

        for (role_iter ri = mRoles.begin(); ri != mRoles.end(); ++ri)
        {
                LLGroupRoleData* data = ri->second;
                delete data;
        }
        mRoles.clear();
        mReceivedRoleMemberPairs = 0;
        mRoleDataComplete = FALSE;
        mRoleMemberDataComplete = FALSE;
}

void LLGroupMgrGroupData::removeRoleMemberData()
{
        for (member_iter mi = mMembers.begin(); mi != mMembers.end(); ++mi)
        {
                LLGroupMemberData* data = mi->second;
                if (data)
                {
                        data->clearRoles();
                }
        }

        for (role_iter ri = mRoles.begin(); ri != mRoles.end(); ++ri)
        {
                LLGroupRoleData* data = ri->second;
                if (data)
                {
                        data->clearMembers();
                }
        }

        mReceivedRoleMemberPairs = 0;
        mRoleMemberDataComplete = FALSE;
}

LLGroupMgrGroupData::~LLGroupMgrGroupData()
{
        removeData();
}

bool LLGroupMgrGroupData::changeRoleMember(const LLUUID& role_id, 
                                                                                   const LLUUID& member_id, 
                                                                                   LLRoleMemberChangeType rmc)
{
        role_iter ri = mRoles.find(role_id);
        member_iter mi = mMembers.find(member_id);

        if (ri == mRoles.end()
                || mi == mMembers.end() )
        {
                if (ri == mRoles.end()) llwarns << "LLGroupMgrGroupData::changeRoleMember couldn't find role " << role_id << llendl;
                if (mi == mMembers.end()) llwarns << "LLGroupMgrGroupData::changeRoleMember couldn't find member " << member_id << llendl;
                return false;
        }

        LLGroupRoleData* grd = ri->second;
        LLGroupMemberData* gmd = mi->second;

        if (!grd || !gmd)
        {
                llwarns << "LLGroupMgrGroupData::changeRoleMember couldn't get member or role data." << llendl;
                return false;
        }

        if (RMC_ADD == rmc)
        {
                llinfos << " adding member to role." << llendl;
                grd->addMember(member_id);
                gmd->addRole(role_id,grd);

                //TODO move this into addrole function
                //see if they added someone to the owner role and update isOwner
                gmd->mIsOwner = (role_id == mOwnerRole) ? TRUE : gmd->mIsOwner;
        }
        else if (RMC_REMOVE == rmc)
        {
                llinfos << " removing member from role." << llendl;
                grd->removeMember(member_id);
                gmd->removeRole(role_id);

                //see if they removed someone from the owner role and update isOwner
                gmd->mIsOwner = (role_id == mOwnerRole) ? FALSE : gmd->mIsOwner;
        }

        lluuid_pair role_member;
        role_member.first = role_id;
        role_member.second = member_id;

        change_map::iterator it = mRoleMemberChanges.find(role_member);
        if (it != mRoleMemberChanges.end())
        {
                // There was already a role change for this role_member
                if (it->second.mChange == rmc)
                {
                        // Already recorded this change?  Weird.
                        llinfos << "Received duplicate change for "
                                        << " role: " << role_id << " member " << member_id 
                                        << " change " << (rmc == RMC_ADD ? "ADD" : "REMOVE") << llendl;
                }
                else
                {
                        // The only two operations (add and remove) currently cancel each other out
                        // If that changes this will need more logic
                        if (rmc == RMC_NONE)
                        {
                                llwarns << "changeRoleMember: existing entry with 'RMC_NONE' change! This shouldn't happen." << llendl;
                                LLRoleMemberChange rc(role_id,member_id,rmc);
                                mRoleMemberChanges[role_member] = rc;
                        }
                        else
                        {
                                mRoleMemberChanges.erase(it);
                        }
                }
        }
        else
        {
                LLRoleMemberChange rc(role_id,member_id,rmc);
                mRoleMemberChanges[role_member] = rc;
        }

        recalcAgentPowers(member_id);

        mChanged = TRUE;
        return true;
}

void LLGroupMgrGroupData::recalcAllAgentPowers()
{
        LLGroupMemberData* gmd;

        member_iter mit = mMembers.begin();
        member_iter mend = mMembers.end();
        for( ; mit != mend; ++mit)
        {
                gmd = mit->second;
                if (!gmd) continue;

                std::map<LLUUID,LLGroupRoleData*>::iterator it = gmd->mRoles.begin();
                std::map<LLUUID,LLGroupRoleData*>::iterator end = gmd->mRoles.end();

                gmd->mAgentPowers = 0;
                for ( ; it != end; ++it)
                {
                        LLGroupRoleData* grd = (*it).second;
                        if (!grd) continue;

                        gmd->mAgentPowers |= grd->mRoleData.mRolePowers;
                }
        }
}

void LLGroupMgrGroupData::recalcAgentPowers(const LLUUID& agent_id)
{
        member_iter mi = mMembers.find(agent_id);
        if (mi == mMembers.end()) return;

        LLGroupMemberData* gmd = mi->second;

        if (!gmd) return;

        std::map<LLUUID,LLGroupRoleData*>::iterator it = gmd->mRoles.begin();
        std::map<LLUUID,LLGroupRoleData*>::iterator end = gmd->mRoles.end();

        gmd->mAgentPowers = 0;
        for ( ; it != end; ++it)
        {
                LLGroupRoleData* grd = (*it).second;
                if (!grd) continue;

                gmd->mAgentPowers |= grd->mRoleData.mRolePowers;
        }
}

bool packRoleUpdateMessageBlock(LLMessageSystem* msg, 
                                                                const LLUUID& group_id,
                                                                const LLUUID& role_id, 
                                                                const LLRoleData& role_data, 
                                                                bool start_message)
{
        if (start_message)
        {
                msg->newMessage("GroupRoleUpdate");
                msg->nextBlock("AgentData");
                msg->addUUID("AgentID",gAgent.getID());
                msg->addUUID("SessionID",gAgent.getSessionID());
                msg->addUUID("GroupID",group_id);
                start_message = false;
        }

        msg->nextBlock("RoleData");
        msg->addUUID("RoleID",role_id);
        msg->addString("Name", role_data.mRoleName);
        msg->addString("Description", role_data.mRoleDescription);
        msg->addString("Title", role_data.mRoleTitle);
        msg->addU64("Powers", role_data.mRolePowers);
        msg->addU8("UpdateType", (U8)role_data.mChangeType);

        if (msg->isSendFullFast())
        {
                gAgent.sendReliableMessage();
                start_message = true;
        }

        return start_message;
}

void LLGroupMgrGroupData::sendRoleChanges()
{
        // Commit changes locally
        std::map<LLUUID,LLRoleData>::iterator it;
        std::map<LLUUID,LLRoleData>::iterator end;
        LLGroupRoleData* grd;
        role_iter role_it;
        LLMessageSystem* msg = gMessageSystem;
        bool start_message = true;

        bool need_role_cleanup = false;
        bool need_role_data = false;
        bool need_power_recalc = false;

        // Apply all changes
        it = mRoleChanges.begin();
        end = mRoleChanges.end();
        for ( ; it != end; ++it)
        {
                const LLUUID& role_id = (*it).first;
                const LLRoleData& role_data = (*it).second;

                // Commit to local data set
                role_it = mRoles.find((*it).first);
                LLGroupRoleData* group_role_data = (*role_it).second;
                if ( (mRoles.end() == role_it 
                                && RC_CREATE != role_data.mChangeType)
                        || (mRoles.end() != role_it
                                && RC_CREATE == role_data.mChangeType))
                {
                        continue;
                }

                switch (role_data.mChangeType)
                {
                        case RC_CREATE:
                        {
                                grd = new LLGroupRoleData(role_id, role_data, 0);
                                mRoles[role_id] = grd;
                                need_role_data = true;
                                break;
                        }
                        case RC_DELETE:
                        {
                                delete group_role_data;
                                mRoles.erase(role_it);
                                need_role_cleanup = true;
                                need_power_recalc = true;
                                break;
                        }
                        case RC_UPDATE_ALL:
                        case RC_UPDATE_POWERS:
                                need_power_recalc = true;
                        case RC_UPDATE_DATA:
                        default: 
                        {
                                group_role_data->setRoleData(role_data);
                                break;
                        }
                }

                // Update dataserver
                start_message = packRoleUpdateMessageBlock(msg,getID(),role_id,role_data,start_message);
        }

        if (!start_message)
        {
                gAgent.sendReliableMessage();
        }

        // If we delete a role then all the role-member pairs are invalid!
        if (need_role_cleanup)
        {
                removeRoleMemberData();
        }

        // If we create a new role, then we need to re-fetch all the role data.
        if (need_role_data)
        {
                gGroupMgr->sendGroupRoleDataRequest(getID());
        }

        // Clean up change lists        
        mRoleChanges.clear();

        // Recalculate all the agent powers because role powers have now changed.
        if (need_power_recalc)
        {
                recalcAllAgentPowers();
        }
}

void LLGroupMgrGroupData::cancelRoleChanges()
{
        // Clear out all changes!
        mRoleChanges.clear();
}
//
// LLGroupMgr
//

LLGroupMgr::LLGroupMgr()
{
}

LLGroupMgr::~LLGroupMgr()
{
        clearGroups();
}

void LLGroupMgr::clearGroups()
{
        std::for_each(mRoleActionSets.begin(), mRoleActionSets.end(), DeletePointer());
        mRoleActionSets.clear();
        std::for_each(mGroups.begin(), mGroups.end(), DeletePairedPointer());
        mGroups.clear();
        mObservers.clear();
}

void LLGroupMgr::clearGroupData(const LLUUID& group_id)
{
        std::map<LLUUID, LLGroupMgrGroupData*>::iterator iter = mGroups.find(group_id);
        if (iter != mGroups.end())
        {
                delete (*iter).second;
                mGroups.erase(iter);
        }
}

void LLGroupMgr::addObserver(LLGroupMgrObserver* observer) 
{ 
        mObservers.insert(std::pair<LLUUID, LLGroupMgrObserver*>(observer->getID(), observer));
}

void LLGroupMgr::removeObserver(LLGroupMgrObserver* observer)
{
        if (!observer)
        {
                return;
        }
        observer_iter it;
        it = mObservers.find(observer->getID());
        while (it != mObservers.end())
        {
                if (it->second == observer)
                {
                        mObservers.erase(it);
                        break;
                }
                else
                {
                        ++it;
                }
        }
}

LLGroupMgrGroupData* LLGroupMgr::getGroupData(const LLUUID& id)
{
        group_iter gi = mGroups.find(id);

        if (gi != mGroups.end())
        {
                return gi->second;
        }
        return NULL;
}

// static
void LLGroupMgr::processGroupMembersReply(LLMessageSystem* msg, void** data)
{
        llinfos << "LLGroupMgr::processGroupMembersReply" << llendl;
        LLUUID agent_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id );
        if (gAgent.getID() != agent_id)
        {
                llwarns << "Got group properties reply for another agent!"
                        << " Probably a userserver bug!" << llendl;
                return;
        }

        LLUUID group_id;
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_GroupID, group_id );

        LLUUID request_id;
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_RequestID, request_id);

        LLGroupMgrGroupData* group_datap = gGroupMgr->createGroupData(group_id);
        if (group_datap->mMemberRequestID != request_id)
        {
                llwarns << "processGroupMembersReply: Received incorrect (stale?) request id" << llendl;
                return;
        }

        msg->getS32(_PREHASH_GroupData, "MemberCount", group_datap->mMemberCount );

        if (group_datap->mMemberCount > 0)
        {
                S32 contribution = 0;
                char online_status[DB_DATETIME_BUF_SIZE];               /* Flawfinder: ignore */
                char title[DB_GROUP_TITLE_BUF_SIZE];            /* Flawfinder: ignore */
                U64 agent_powers = 0;
                BOOL is_owner = FALSE;

                S32 num_members = msg->getNumberOfBlocksFast(_PREHASH_MemberData);
                for (S32 i = 0; i < num_members; i++)
                {
                        LLUUID member_id;

                        msg->getUUIDFast(_PREHASH_MemberData, _PREHASH_AgentID, member_id, i );
                        msg->getS32(_PREHASH_MemberData, _PREHASH_Contribution, contribution, i);
                        msg->getU64(_PREHASH_MemberData, "AgentPowers", agent_powers, i);
                        msg->getStringFast(_PREHASH_MemberData, _PREHASH_OnlineStatus, DB_DATETIME_BUF_SIZE, online_status, i);
                        msg->getString(_PREHASH_MemberData, "Title", DB_GROUP_TITLE_BUF_SIZE, title, i);
                        msg->getBOOL(_PREHASH_MemberData,"IsOwner",is_owner,i);

                        if (member_id.notNull())
                        {
                                //llinfos << "Member " << member_id << " has powers " << std::hex << agent_powers << std::dec << llendl;
                                LLGroupMemberData* newdata = new LLGroupMemberData(member_id, 
                                                                                                                                        contribution, 
                                                                                                                                        agent_powers, 
                                                                                                                                        std::string(title),
                                                                                                                                        std::string(online_status),
                                                                                                                                        is_owner);
#if LL_DEBUG
                                LLGroupMgrGroupData::member_iter mit = group_datap->mMembers.find(member_id);
                                if (mit != group_datap->mMembers.end())
                                {
                                        llinfos << " *** Received duplicate member data for agent " << member_id << llendl;
                                }
#endif
                                group_datap->mMembers[member_id] = newdata;
                        }
                        else
                        {
                                llinfos << "Received null group member data." << llendl;
                        }
                }
        }

        if (group_datap->mMembers.size() ==  (U32)group_datap->mMemberCount)
        {
                group_datap->mMemberDataComplete = TRUE;
                group_datap->mMemberRequestID.setNull();
                // We don't want to make role-member data requests until we have all the members
                if (group_datap->mPendingRoleMemberRequest)
                {
                        group_datap->mPendingRoleMemberRequest = FALSE;
                        gGroupMgr->sendGroupRoleMembersRequest(group_datap->mID);
                }
        }

        group_datap->mChanged = TRUE;
        gGroupMgr->notifyObservers(GC_MEMBER_DATA);
}

//static 
void LLGroupMgr::processGroupPropertiesReply(LLMessageSystem* msg, void** data)
{
        llinfos << "LLGroupMgr::processGroupPropertiesReply" << llendl;
        LLUUID agent_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id );
        if (gAgent.getID() != agent_id)
        {
                llwarns << "Got group properties reply for another agent!"
                        << " Probably a userserver bug!" << llendl;
                return;
        }

        LLUUID group_id;
        char    name[DB_GROUP_NAME_BUF_SIZE];           /* Flawfinder: ignore */
        char    charter[DB_GROUP_CHARTER_BUF_SIZE];             /* Flawfinder: ignore */
        BOOL    show_in_list = FALSE;
        LLUUID  founder_id;
        U64             powers_mask = GP_NO_POWERS;
        S32             money = 0;
        char    member_title[DB_GROUP_TITLE_BUF_SIZE];          /* Flawfinder: ignore */
        LLUUID  insignia_id;
        LLUUID  owner_role;
        U32             membership_fee = 0;
        BOOL    open_enrollment = FALSE;
        S32             num_group_members = 0;
        S32             num_group_roles = 0;
        BOOL    allow_publish = FALSE;
        BOOL    mature = FALSE;

        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_GroupID, group_id );
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_FounderID,                founder_id);    
        msg->getStringFast(_PREHASH_GroupData, _PREHASH_Name,                   DB_GROUP_NAME_BUF_SIZE, name );
        msg->getStringFast(_PREHASH_GroupData, _PREHASH_Charter,                        DB_GROUP_CHARTER_BUF_SIZE, charter );
        msg->getBOOLFast(_PREHASH_GroupData, _PREHASH_ShowInList,               show_in_list );
        msg->getStringFast(_PREHASH_GroupData, _PREHASH_MemberTitle, DB_GROUP_TITLE_BUF_SIZE, member_title );
        msg->getUUIDFast(_PREHASH_GroupData,    _PREHASH_InsigniaID,                    insignia_id );
        msg->getU64Fast(_PREHASH_GroupData,             _PREHASH_PowersMask,                    powers_mask );
        msg->getU32Fast(_PREHASH_GroupData,             _PREHASH_MembershipFee,                 membership_fee );
        msg->getBOOLFast(_PREHASH_GroupData,    _PREHASH_OpenEnrollment,                open_enrollment );
        msg->getS32Fast(_PREHASH_GroupData,             _PREHASH_GroupMembershipCount,  num_group_members);
        msg->getS32(_PREHASH_GroupData,         "GroupRolesCount",              num_group_roles);
        msg->getS32Fast(_PREHASH_GroupData,             _PREHASH_Money,                                 money);
        msg->getBOOL("GroupData", "AllowPublish", allow_publish);
        msg->getBOOL("GroupData", "MaturePublish", mature);
        msg->getUUID(_PREHASH_GroupData, "OwnerRole", owner_role);

        LLGroupMgrGroupData* group_datap = gGroupMgr->createGroupData(group_id);

        group_datap->mName = name;
        group_datap->mCharter = charter;
        group_datap->mShowInList = show_in_list;
        group_datap->mInsigniaID = insignia_id;
        group_datap->mFounderID = founder_id;
        group_datap->mMembershipFee = membership_fee;
        group_datap->mOpenEnrollment = open_enrollment;
        group_datap->mAllowPublish = allow_publish;
        group_datap->mMaturePublish = mature;
        group_datap->mOwnerRole = owner_role;
        group_datap->mMemberCount = num_group_members;
        group_datap->mRoleCount = num_group_roles + 1; // Add the everyone role.
        
        group_datap->mGroupPropertiesDataComplete = TRUE;
        group_datap->mChanged = TRUE;

        gGroupMgr->notifyObservers(GC_PROPERTIES);
}

// static
void LLGroupMgr::processGroupRoleDataReply(LLMessageSystem* msg, void** data)
{
        llinfos << "LLGroupMgr::processGroupRoleDataReply" << llendl;
        LLUUID agent_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id );
        if (gAgent.getID() != agent_id)
        {
                llwarns << "Got group properties reply for another agent!"
                        << " Probably a userserver bug!" << llendl;
                return;
        }

        LLUUID group_id;
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_GroupID, group_id );

        LLUUID request_id;
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_RequestID, request_id);

        LLGroupMgrGroupData* group_data = gGroupMgr->createGroupData(group_id);
        if (group_data->mRoleDataRequestID != request_id)
        {
                llwarns << "processGroupRoleDataReply: Received incorrect (stale?) request id" << llendl;
                return;
        }

        msg->getS32(_PREHASH_GroupData, "RoleCount", group_data->mRoleCount );

        char    name[DB_GROUP_NAME_BUF_SIZE];           /* Flawfinder: ignore */
        char    title[DB_GROUP_TITLE_BUF_SIZE];         /* Flawfinder: ignore */
        char    desc[DB_GROUP_CHARTER_BUF_SIZE];                /* Flawfinder: ignore */
        U64             powers = 0;
        U32             member_count = 0;
        LLUUID role_id;

        U32 num_blocks = msg->getNumberOfBlocks("RoleData");
        U32 i = 0;
        for (i=0; i< num_blocks; ++i)
        {
                msg->getUUID("RoleData", "RoleID", role_id, i );
                
                msg->getString("RoleData","Name",DB_GROUP_NAME_BUF_SIZE,name,i);
                msg->getString("RoleData","Title",DB_GROUP_TITLE_BUF_SIZE,title,i);
                msg->getString("RoleData","Description",DB_GROUP_CHARTER_BUF_SIZE,desc,i);
                msg->getU64("RoleData","Powers",powers,i);
                msg->getU32("RoleData","Members",member_count,i);

                lldebugs << "Adding role data: " << name << " {" << role_id << "}" << llendl;
                LLGroupRoleData* rd = new LLGroupRoleData(role_id,name,title,desc,powers,member_count);
                group_data->mRoles[role_id] = rd;
        }

        if (group_data->mRoles.size() == (U32)group_data->mRoleCount)
        {
                group_data->mRoleDataComplete = TRUE;
                group_data->mRoleDataRequestID.setNull();
                // We don't want to make role-member data requests until we have all the role data
                if (group_data->mPendingRoleMemberRequest)
                {
                        group_data->mPendingRoleMemberRequest = FALSE;
                        gGroupMgr->sendGroupRoleMembersRequest(group_data->mID);
                }
        }

        group_data->mChanged = TRUE;
        gGroupMgr->notifyObservers(GC_ROLE_DATA);
}

// static
void LLGroupMgr::processGroupRoleMembersReply(LLMessageSystem* msg, void** data)
{
        llinfos << "LLGroupMgr::processGroupRoleMembersReply" << llendl;
        LLUUID agent_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id );
        if (gAgent.getID() != agent_id)
        {
                llwarns << "Got group properties reply for another agent!"
                        << " Probably a userserver bug!" << llendl;
                return;
        }

        LLUUID request_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_RequestID, request_id);

        LLUUID group_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_GroupID, group_id );

        U32 total_pairs;
        msg->getU32(_PREHASH_AgentData, "TotalPairs", total_pairs);

        LLGroupMgrGroupData* group_data = gGroupMgr->createGroupData(group_id);

        if (group_data->mRoleMembersRequestID != request_id)
        {
                llwarns << "processGroupRoleMembersReply: Received incorrect (stale?) role member request id" << llendl;
                return;
        }

        U32 num_blocks = msg->getNumberOfBlocks("MemberData");
        U32 i;
        LLUUID member_id;
        LLUUID role_id;
        LLGroupRoleData* rd = NULL;
        LLGroupMemberData* md = NULL;

        LLGroupMgrGroupData::role_iter ri;
        LLGroupMgrGroupData::member_iter mi;

        // If total_pairs == 0, there are no members in any custom roles.
        if (total_pairs > 0)
        {
                for (i = 0;i < num_blocks; ++i)
                {
                        msg->getUUID("MemberData","RoleID",role_id,i);
                        msg->getUUID("MemberData","MemberID",member_id,i);

                        if (role_id.notNull() && member_id.notNull() )
                        {
                                rd = NULL;
                                ri = group_data->mRoles.find(role_id);
                                if (ri != group_data->mRoles.end())
                                {
                                        rd = ri->second;
                                }

                                md = NULL;
                                mi = group_data->mMembers.find(member_id);
                                if (mi != group_data->mMembers.end())
                                {
                                        md = mi->second;
                                }

                                if (rd && md)
                                {
                                        lldebugs << "Adding role-member pair: " << role_id << ", " << member_id << llendl;
                                        rd->addMember(member_id);
                                        md->addRole(role_id,rd);
                                }
                                else
                                {
                                        if (!rd) llwarns << "Received role data for unkown role " << role_id << " in group " << group_id << llendl;
                                        if (!md) llwarns << "Received role data for unkown member " << member_id << " in group " << group_id << llendl;
                                }
                        }
                }

                group_data->mReceivedRoleMemberPairs += num_blocks;
        }

        if (group_data->mReceivedRoleMemberPairs == total_pairs)
        {
                // Add role data for the 'everyone' role to all members
                LLGroupRoleData* everyone = group_data->mRoles[LLUUID::null];
                if (!everyone)
                {
                        llwarns << "Everyone role not found!" << llendl;
                }
                else
                {
                        LLGroupMgrGroupData::member_iter mi = group_data->mMembers.begin();
                        LLGroupMgrGroupData::member_iter end = group_data->mMembers.end();
                        for ( ; mi != end; ++mi)
                        {
                                LLGroupMemberData* data = mi->second;
                                if (data)
                                {
                                        data->addRole(LLUUID::null,everyone);
                                }
                        }
                }
                
        group_data->mRoleMemberDataComplete = TRUE;
                group_data->mRoleMembersRequestID.setNull();
        }

        group_data->mChanged = TRUE;
        gGroupMgr->notifyObservers(GC_ROLE_MEMBER_DATA);
}

// static
void LLGroupMgr::processGroupTitlesReply(LLMessageSystem* msg, void** data)
{
        llinfos << "LLGroupMgr::processGroupTitlesReply" << llendl;
        LLUUID agent_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id );
        if (gAgent.getID() != agent_id)
        {
                llwarns << "Got group properties reply for another agent!"
                        << " Probably a userserver bug!" << llendl;
                return;
        }

        LLUUID group_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_GroupID, group_id );

        LLGroupMgrGroupData* group_data = gGroupMgr->createGroupData(group_id);

        LLUUID request_id;
        msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_RequestID, request_id);

        if (group_data->mTitlesRequestID != request_id)
        {
                llwarns << "processGroupTitlesReply: Received incorrect (stale?) title request id" << llendl;
                return;
        }

        char title_buf[DB_GROUP_TITLE_BUF_SIZE];                /* Flawfinder: ignore */

        LLGroupTitle title;

        S32 i = 0;
        S32 blocks = msg->getNumberOfBlocksFast(_PREHASH_GroupData);
        for (i=0; i<blocks; ++i)
        {
                msg->getString("GroupData","Title",DB_GROUP_TITLE_BUF_SIZE,title_buf,i);
                title.mTitle = title_buf;
                msg->getUUID("GroupData","RoleID",title.mRoleID,i);
                msg->getBOOL("GroupData","Selected",title.mSelected,i);

                if (title_buf[0] != '\0')
                {
                        lldebugs << "LLGroupMgr adding title: " << title.mTitle << ", " << title.mRoleID << ", " << (title.mSelected ? 'Y' : 'N') << llendl;
                        group_data->mTitles.push_back(title);
                }
        }

        group_data->mChanged = TRUE;
        gGroupMgr->notifyObservers(GC_TITLES);
}

// static
void LLGroupMgr::processEjectGroupMemberReply(LLMessageSystem* msg, void ** data)
{
        llinfos << "processEjectGroupMemberReply" << llendl;
        LLUUID group_id;
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_GroupID, group_id);
        BOOL success;
        msg->getBOOLFast(_PREHASH_EjectData, _PREHASH_Success, success);

        // If we had a failure, the group panel needs to be updated.
        if (!success)
        {
                LLFloaterGroupInfo::refreshGroup(group_id);
        }
}

// static
void LLGroupMgr::processJoinGroupReply(LLMessageSystem* msg, void ** data)
{
        llinfos << "processJoinGroupReply" << llendl;
        LLUUID group_id;
        BOOL success;
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_GroupID, group_id);
        msg->getBOOLFast(_PREHASH_GroupData, _PREHASH_Success, success);

        if (success)
        {
                // refresh all group information
                gAgent.sendAgentDataUpdateRequest();

                gGroupMgr->clearGroupData(group_id);
                // refresh the floater for this group, if any.
                LLFloaterGroupInfo::refreshGroup(group_id);
                // refresh the group panel of the search window, if necessary.
                LLFloaterDirectory::refreshGroup(group_id);
        }
}

// static
void LLGroupMgr::processLeaveGroupReply(LLMessageSystem* msg, void ** data)
{
        llinfos << "processLeaveGroupReply" << llendl;
        LLUUID group_id;
        BOOL success;
        msg->getUUIDFast(_PREHASH_GroupData, _PREHASH_GroupID, group_id);
        msg->getBOOLFast(_PREHASH_GroupData, _PREHASH_Success, success);

        if (success)
        {
                // refresh all group information
                gAgent.sendAgentDataUpdateRequest();

                gGroupMgr->clearGroupData(group_id);
                // close the floater for this group, if any.
                LLFloaterGroupInfo::closeGroup(group_id);
                // refresh the group panel of the search window, if necessary.
                LLFloaterDirectory::refreshGroup(group_id);
        }
}

// static
void LLGroupMgr::processCreateGroupReply(LLMessageSystem* msg, void ** data)
{
        LLUUID group_id;
        BOOL success;
        char message[MAX_STRING];               /* Flawfinder: ignore */

        msg->getUUIDFast(_PREHASH_ReplyData, _PREHASH_GroupID, group_id );

        msg->getBOOLFast(_PREHASH_ReplyData, _PREHASH_Success,  success );
        msg->getStringFast(_PREHASH_ReplyData, _PREHASH_Message, MAX_STRING, message );

        if (success)
        {
                // refresh all group information
                gAgent.sendAgentDataUpdateRequest();

                // HACK! We haven't gotten the agent group update yet, so ... um ... fake it.
                // This is so when we go to modify the group we will be able to do so.
                // This isn't actually too bad because real data will come down in 2 or 3 miliseconds and replace this.
                LLGroupData gd;
                gd.mAcceptNotices = TRUE;
                gd.mListInProfile = TRUE;
                gd.mContribution = 0;
                gd.mID = group_id;
                gd.mName = "new group";
                gd.mPowers = GP_ALL_POWERS;

                gAgent.mGroups.push_back(gd);

                LLFloaterGroupInfo::closeCreateGroup();
                LLFloaterGroupInfo::showFromUUID(group_id,"roles_tab");
        }
        else
        {
                // *TODO:translate
                LLString::format_map_t args;
                args["[MESSAGE]"] = message;
                gViewerWindow->alertXml("UnableToCreateGroup", args);
        }
}

LLGroupMgrGroupData* LLGroupMgr::createGroupData(const LLUUID& id)
{
        LLGroupMgrGroupData* group_datap;

        group_iter existing_group = gGroupMgr->mGroups.find(id);
        if (existing_group == gGroupMgr->mGroups.end())
        {
                group_datap = new LLGroupMgrGroupData(id);
                gGroupMgr->addGroup(group_datap);
        }
        else
        {
                group_datap = existing_group->second;
        }

        return group_datap;
}

void LLGroupMgr::notifyObservers(LLGroupChange gc)
{
        for (group_iter gi = mGroups.begin(); gi != mGroups.end(); ++gi)
        {
                if (gi->second->mChanged)
                {
                        // find all observers for this group id
                        observer_iter oi = mObservers.find(gi->first);
                        for (; oi != mObservers.end(); ++oi)
                        {
                                oi->second->changed(gc);
                        }
                        gi->second->mChanged = FALSE;
                }
        }
}

void LLGroupMgr::addGroup(LLGroupMgrGroupData* group_datap)
{
        if (mGroups.size() > MAX_CACHED_GROUPS)
        {
                // get rid of groups that aren't observed
                for (group_iter gi = mGroups.begin(); gi != mGroups.end() && mGroups.size() > MAX_CACHED_GROUPS / 2; )
                {
                        observer_iter oi = mObservers.find(gi->first);
                        if (oi == mObservers.end())
                        {
                                // not observed
                                LLGroupMgrGroupData* unobserved_groupp = gi->second;
                                delete unobserved_groupp;
                                mGroups.erase(gi++);
                        }
                        else
                        {
                                ++gi;
                        }
                }
        }
        mGroups[group_datap->getID()] = group_datap;
}


void LLGroupMgr::sendGroupPropertiesRequest(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendGroupPropertiesRequest" << llendl;
        // This will happen when we get the reply
        //LLGroupMgrGroupData* group_datap = createGroupData(group_id);
        
        LLMessageSystem* msg = gMessageSystem;
        msg->newMessage("GroupProfileRequest");
        msg->nextBlock("AgentData");
        msg->addUUID("AgentID",gAgent.getID());
        msg->addUUID("SessionID",gAgent.getSessionID());
        msg->nextBlock("GroupData");
        msg->addUUID("GroupID",group_id);
        gAgent.sendReliableMessage();
}

void LLGroupMgr::sendGroupMembersRequest(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendGroupMembersRequest" << llendl;
        LLGroupMgrGroupData* group_datap = createGroupData(group_id);
        if (group_datap->mMemberRequestID.isNull())
        {
                group_datap->removeMemberData();
                group_datap->mMemberRequestID.generate();

                LLMessageSystem* msg = gMessageSystem;
                msg->newMessage("GroupMembersRequest");
                msg->nextBlock("AgentData");
                msg->addUUID("AgentID",gAgent.getID());
                msg->addUUID("SessionID",gAgent.getSessionID());
                msg->nextBlock("GroupData");
                msg->addUUID("GroupID",group_id);
                msg->addUUID("RequestID",group_datap->mMemberRequestID);
                gAgent.sendReliableMessage();
        }
}

void LLGroupMgr::sendGroupRoleDataRequest(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendGroupRoleDataRequest" << llendl;
        LLGroupMgrGroupData* group_datap = createGroupData(group_id);
        if (group_datap->mRoleDataRequestID.isNull())
        {
                group_datap->removeRoleData();
                group_datap->mRoleDataRequestID.generate();

                LLMessageSystem* msg = gMessageSystem;
                msg->newMessage("GroupRoleDataRequest");
                msg->nextBlock("AgentData");
                msg->addUUID("AgentID",gAgent.getID());
                msg->addUUID("SessionID",gAgent.getSessionID());
                msg->nextBlock("GroupData");
                msg->addUUID("GroupID",group_id);
                msg->addUUID("RequestID",group_datap->mRoleDataRequestID);
                gAgent.sendReliableMessage();
        }
}

void LLGroupMgr::sendGroupRoleMembersRequest(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendGroupRoleMembersRequest" << llendl;
        LLGroupMgrGroupData* group_datap = createGroupData(group_id);
        
        if (group_datap->mRoleMembersRequestID.isNull())
        {
                // Don't send the request if we don't have all the member or role data
                if (!group_datap->isMemberDataComplete()
                        || !group_datap->isRoleDataComplete())
                {
                        // *TODO: KLW FIXME: Should we start a member or role data request?
                        llinfos << " Pending: " << (group_datap->mPendingRoleMemberRequest ? "Y" : "N")
                                << " MemberDataComplete: " << (group_datap->mMemberDataComplete ? "Y" : "N")
                                << " RoleDataComplete: " << (group_datap->mRoleDataComplete ? "Y" : "N") << llendl;
                        group_datap->mPendingRoleMemberRequest = TRUE;
                        return;
                }

                group_datap->removeRoleMemberData();
                group_datap->mRoleMembersRequestID.generate();

                LLMessageSystem* msg = gMessageSystem;
                msg->newMessage("GroupRoleMembersRequest");
                msg->nextBlock("AgentData");
                msg->addUUID("AgentID",gAgent.getID());
                msg->addUUID("SessionID",gAgent.getSessionID());
                msg->nextBlock("GroupData");
                msg->addUUID("GroupID",group_id);
                msg->addUUID("RequestID",group_datap->mRoleMembersRequestID);
                gAgent.sendReliableMessage();
        }
}

void LLGroupMgr::sendGroupTitlesRequest(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendGroupTitlesRequest" << llendl;
        LLGroupMgrGroupData* group_datap = createGroupData(group_id);
        
        group_datap->mTitles.clear();
        group_datap->mTitlesRequestID.generate();

        LLMessageSystem* msg = gMessageSystem;
        msg->newMessage("GroupTitlesRequest");
        msg->nextBlock("AgentData");
        msg->addUUID("AgentID",gAgent.getID());
        msg->addUUID("SessionID",gAgent.getSessionID());
        msg->addUUID("GroupID",group_id);
        msg->addUUID("RequestID",group_datap->mTitlesRequestID);

        gAgent.sendReliableMessage();
}

void LLGroupMgr::sendGroupTitleUpdate(const LLUUID& group_id, const LLUUID& title_role_id)
{
        llinfos << "LLGroupMgr::sendGroupTitleUpdate" << llendl;

        LLMessageSystem* msg = gMessageSystem;
        msg->newMessage("GroupTitleUpdate");
        msg->nextBlock("AgentData");
        msg->addUUID("AgentID",gAgent.getID());
        msg->addUUID("SessionID",gAgent.getSessionID());
        msg->addUUID("GroupID",group_id);
        msg->addUUID("TitleRoleID",title_role_id);

        gAgent.sendReliableMessage();

        // Save the change locally
        LLGroupMgrGroupData* group_datap = createGroupData(group_id);
        std::vector<LLGroupTitle>::iterator iter = group_datap->mTitles.begin();
        std::vector<LLGroupTitle>::iterator end = group_datap->mTitles.end();
        
        for ( ; iter != end; ++iter)
        {
                if (iter->mRoleID == title_role_id)
                {
                        iter->mSelected = TRUE;
                }
                else if (iter->mSelected)
                {
                        iter->mSelected = FALSE;
                }
        }
}

// static
void LLGroupMgr::sendCreateGroupRequest(const std::string& name,
                                                                                const std::string& charter,
                                                                                U8 show_in_list,
                                                                                const LLUUID& insignia,
                                                                                S32 membership_fee,
                                                                                BOOL open_enrollment,
                                                                                BOOL allow_publish,
                                                                                BOOL mature_publish)
{
        LLMessageSystem* msg = gMessageSystem;
        msg->newMessage("CreateGroupRequest");
        msg->nextBlock("AgentData");
        msg->addUUID("AgentID",gAgent.getID());
        msg->addUUID("SessionID",gAgent.getSessionID());

        msg->nextBlock("GroupData");
        msg->addString("Name",name);
        msg->addString("Charter",charter);
        msg->addBOOL("ShowInList",show_in_list);
        msg->addUUID("InsigniaID",insignia);
        msg->addS32("MembershipFee",membership_fee);
        msg->addBOOL("OpenEnrollment",open_enrollment);
        msg->addBOOL("AllowPublish",allow_publish);
        msg->addBOOL("MaturePublish",mature_publish);

        gAgent.sendReliableMessage();
}

void LLGroupMgr::sendUpdateGroupInfo(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendUpdateGroupInfo" << llendl;
        LLGroupMgrGroupData* group_datap = createGroupData(group_id);

        LLMessageSystem* msg = gMessageSystem;

        msg->newMessageFast(_PREHASH_UpdateGroupInfo);
        msg->nextBlockFast(_PREHASH_AgentData);
        msg->addUUIDFast(_PREHASH_AgentID,gAgent.getID());
        msg->addUUIDFast(_PREHASH_SessionID,gAgent.getSessionID());

        msg->nextBlockFast(_PREHASH_GroupData);
        msg->addUUIDFast(_PREHASH_GroupID,group_datap->getID());
        msg->addStringFast(_PREHASH_Charter,group_datap->mCharter);
        msg->addBOOLFast(_PREHASH_ShowInList,group_datap->mShowInList);
        msg->addUUIDFast(_PREHASH_InsigniaID,group_datap->mInsigniaID);
        msg->addS32Fast(_PREHASH_MembershipFee,group_datap->mMembershipFee);
        msg->addBOOLFast(_PREHASH_OpenEnrollment,group_datap->mOpenEnrollment);
        msg->addBOOLFast(_PREHASH_AllowPublish,group_datap->mAllowPublish);
        msg->addBOOLFast(_PREHASH_MaturePublish,group_datap->mMaturePublish);

        gAgent.sendReliableMessage();

        // Not expecting a response, so let anyone else watching know the data has changed.
        group_datap->mChanged = TRUE;
        notifyObservers(GC_PROPERTIES);
}

void LLGroupMgr::sendGroupRoleMemberChanges(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendGroupRoleMemberChanges" << llendl;
        LLGroupMgrGroupData* group_datap = createGroupData(group_id);

        if (group_datap->mRoleMemberChanges.empty()) return;

        LLMessageSystem* msg = gMessageSystem;

        change_map::const_iterator citer = group_datap->mRoleMemberChanges.begin();
        change_map::const_iterator end = group_datap->mRoleMemberChanges.end();
        bool start_message = true;

        for ( ; citer != end; ++citer)
        {
                if (start_message)
                {
                        msg->newMessage("GroupRoleChanges");
                        msg->nextBlockFast(_PREHASH_AgentData);
                        msg->addUUIDFast(_PREHASH_AgentID,gAgent.getID());
                        msg->addUUIDFast(_PREHASH_SessionID,gAgent.getSessionID());
                        msg->addUUIDFast(_PREHASH_GroupID,group_id);
                        start_message = false;
                }
                msg->nextBlock("RoleChange");
                msg->addUUID("RoleID",citer->second.mRole);
                msg->addUUID("MemberID",citer->second.mMember);
                msg->addU32("Change",(U32)citer->second.mChange);

                if (msg->isSendFullFast())
                {
                        gAgent.sendReliableMessage();
                        start_message = true;
                }
        }

        if (!start_message)
        {
                gAgent.sendReliableMessage();
        }

        group_datap->mRoleMemberChanges.clear();

        // Not expecting a response, so let anyone else watching know the data has changed.
        group_datap->mChanged = TRUE;
        notifyObservers(GC_ROLE_MEMBER_DATA);
}

//static
void LLGroupMgr::sendGroupMemberJoin(const LLUUID& group_id)
{
        LLMessageSystem *msg = gMessageSystem;

        msg->newMessageFast(_PREHASH_JoinGroupRequest);
        msg->nextBlockFast(_PREHASH_AgentData);
        msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID() );
        msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
        msg->nextBlockFast(_PREHASH_GroupData);
        msg->addUUIDFast(_PREHASH_GroupID, group_id);

        gAgent.sendReliableMessage();
}

// member_role_pairs is <member_id,role_id>
// static
void LLGroupMgr::sendGroupMemberInvites(const LLUUID& group_id, std::map<LLUUID,LLUUID>& member_role_pairs)
{
        bool start_message = true;
        LLMessageSystem* msg = gMessageSystem;

        std::map<LLUUID,LLUUID>::iterator it = member_role_pairs.begin();
        std::map<LLUUID,LLUUID>::iterator end = member_role_pairs.end();
        for ( ; it != end; ++it)
        {
                if (start_message)
                {
                        msg->newMessage("InviteGroupRequest");
                        msg->nextBlock("AgentData");
                        msg->addUUID("AgentID",gAgent.getID());
                        msg->addUUID("SessionID",gAgent.getSessionID());
                        msg->nextBlock("GroupData");
                        msg->addUUID("GroupID",group_id);
                        start_message = false;
                }

                msg->nextBlock("InviteData");
                msg->addUUID("InviteeID",(*it).first);
                msg->addUUID("RoleID",(*it).second);

                if (msg->isSendFull())
                {
                        gAgent.sendReliableMessage();
                        start_message = true;
                }
        }

        if (!start_message)
        {
                gAgent.sendReliableMessage();
        }
}

//static
void LLGroupMgr::sendGroupMemberEjects(const LLUUID& group_id,
                                                                           std::vector<LLUUID>& member_ids)
{
        bool start_message = true;
        LLMessageSystem* msg = gMessageSystem;

        LLGroupMgrGroupData* group_datap = gGroupMgr->getGroupData(group_id);
        if (!group_datap) return;

        std::vector<LLUUID>::iterator it = member_ids.begin();
        std::vector<LLUUID>::iterator end = member_ids.end();
        for ( ; it != end; ++it)
        {
                // Can't use 'eject' to leave a group.
                if ((*it) == gAgent.getID()) continue;

                // Make sure they are in the group, and we need the member data
                LLGroupMgrGroupData::member_iter mit = group_datap->mMembers.find(*it);
                if (mit != group_datap->mMembers.end())
                {
                        // Add them to the message
                        if (start_message)
                        {
                                msg->newMessage("EjectGroupMemberRequest");
                                msg->nextBlock("AgentData");
                                msg->addUUID("AgentID",gAgent.getID());
                                msg->addUUID("SessionID",gAgent.getSessionID());
                                msg->nextBlock("GroupData");
                                msg->addUUID("GroupID",group_id);
                                start_message = false;
                        }
                        
                        msg->nextBlock("EjectData");
                        msg->addUUID("EjecteeID",(*it));

                        if (msg->isSendFull())
                        {
                                gAgent.sendReliableMessage();
                                start_message = true;
                        }

                        // Clean up groupmgr
                        std::map<LLUUID,LLGroupRoleData*>::iterator rit = (*mit).second->roleBegin();
                        std::map<LLUUID,LLGroupRoleData*>::iterator rend = (*mit).second->roleEnd();
                        for ( ; rit != rend; ++rit)
                        {
                                if ((*rit).first.notNull())
                                {
                                        (*rit).second->removeMember(*it);
                                }
                        }
                        delete (*mit).second;
                        group_datap->mMembers.erase(*it);
                }
        }

        if (!start_message)
        {
                gAgent.sendReliableMessage();
        }
}

void LLGroupMgr::sendGroupRoleChanges(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::sendGroupRoleChanges" << llendl;
        LLGroupMgrGroupData* group_datap = getGroupData(group_id);

        if (group_datap && group_datap->pendingRoleChanges())
        {
                group_datap->sendRoleChanges();
        
                // Not expecting a response, so let anyone else watching know the data has changed.
                group_datap->mChanged = TRUE;
                notifyObservers(GC_ROLE_DATA);
        }
}

void LLGroupMgr::cancelGroupRoleChanges(const LLUUID& group_id)
{
        llinfos << "LLGroupMgr::cancelGroupRoleChanges" << llendl;
        LLGroupMgrGroupData* group_datap = getGroupData(group_id);

        if (group_datap) group_datap->cancelRoleChanges();
}

//static
bool LLGroupMgr::parseRoleActions(const LLString& xml_filename)
{
        LLXMLNodePtr root;

        BOOL success = LLUICtrlFactory::getLayeredXMLNode(xml_filename, root);  
        
        if (!success || !root || !root->hasName( "role_actions" ))
        {
                llerrs << "Problem reading UI role_actions file: " << xml_filename << llendl;
                return false;
        }

        LLXMLNodeList role_list;
        LLXMLNodeList::iterator role_iter;

        root->getChildren("action_set", role_list, false);
        
        for (role_iter = role_list.begin(); role_iter != role_list.end(); ++role_iter)
        {
                LLXMLNodePtr action_set = role_iter->second;

                LLRoleActionSet* role_action_set = new LLRoleActionSet();
                LLRoleAction* role_action_data = new LLRoleAction();
                
                // name=
                LLString action_set_name;
                if (action_set->getAttributeString("name", action_set_name))
                {
                        lldebugs << "Loading action set " << action_set_name << llendl;
                        role_action_data->mName = action_set_name;
                }
                else
                {
                        llwarns << "Unable to parse action set with no name" << llendl;
                        delete role_action_set;
                        delete role_action_data;
                        continue;
                }
                // description=
                LLString set_description;
                if (action_set->getAttributeString("description", set_description))
                {
                        role_action_data->mDescription = set_description;
                }
                // long description=
                LLString set_longdescription;
                if (action_set->getAttributeString("longdescription", set_longdescription))
                {
                        role_action_data->mLongDescription = set_longdescription;
                }

                // power mask=
                U64 set_power_mask = 0;

                LLXMLNodeList action_list;
                LLXMLNodeList::iterator action_iter;

                action_set->getChildren("action", action_list, false);

                for (action_iter = action_list.begin(); action_iter != action_list.end(); ++action_iter)
                {
                        LLXMLNodePtr action = action_iter->second;

                        LLRoleAction* role_action = new LLRoleAction();

                        // name=
                        LLString action_name;
                        if (action->getAttributeString("name", action_name))
                        {
                                lldebugs << "Loading action " << action_name << llendl;
                                role_action->mName = action_name;
                        }
                        else
                        {
                                llwarns << "Unable to parse action with no name" << llendl;
                                delete role_action;
                                continue;
                        }
                        // description=
                        LLString description;
                        if (action->getAttributeString("description", description))
                        {
                                role_action->mDescription = description;
                        }
                        // long description=
                        LLString longdescription;
                        if (action->getAttributeString("longdescription", longdescription))
                        {
                                role_action->mLongDescription = longdescription;
                        }
                        // description=
                        S32 power_bit = 0;
                        if (action->getAttributeS32("value", power_bit))
                        {
                                if (0 <= power_bit && power_bit < 64)
                                {
                                        role_action->mPowerBit = 0x1LL << power_bit;
                                }
                        }

                        set_power_mask |= role_action->mPowerBit;
        
                        role_action_set->mActions.push_back(role_action);
                }

                role_action_data->mPowerBit = set_power_mask;
                role_action_set->mActionSetData = role_action_data;

                gGroupMgr->mRoleActionSets.push_back(role_action_set);
        }
        return true;
}

// static
void LLGroupMgr::debugClearAllGroups(void*)
{
        gGroupMgr->clearGroups();
        LLGroupMgr::parseRoleActions("role_actions.xml");
}

---