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/**
* @file llinstantmessage.cpp
* @author Phoenix
* @date 2005-08-29
* @brief Constants and functions used in IM.
*
* $LicenseInfo:firstyear=2005&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "lldbstrings.h"
#include "llinstantmessage.h"
#include "llhost.h"
#include "lluuid.h"
#include "llsd.h"
#include "llsdserialize.h"
#include "llsdutil_math.h"
#include "llpointer.h"
#include "message.h"
#include "message.h"
const U8 IM_ONLINE = 0;
const U8 IM_OFFLINE = 1;
const char EMPTY_BINARY_BUCKET[] = "";
const S32 EMPTY_BINARY_BUCKET_SIZE = 1;
const U32 NO_TIMESTAMP = 0;
const std::string SYSTEM_FROM("Second Life");
const std::string INTERACTIVE_SYSTEM_FROM("F387446C-37C4-45f2-A438-D99CBDBB563B");
const S32 IM_TTL = 1;
void pack_instant_message(
LLMessageSystem* msg,
const LLUUID& from_id,
BOOL from_group,
const LLUUID& session_id,
const LLUUID& to_id,
const std::string& name,
const std::string& message,
U8 offline,
EInstantMessage dialog,
const LLUUID& id,
U32 parent_estate_id,
const LLUUID& region_id,
const LLVector3& position,
U32 timestamp,
const U8* binary_bucket,
S32 binary_bucket_size)
{
LL_DEBUGS() << "pack_instant_message()" << LL_ENDL;
msg->newMessageFast(_PREHASH_ImprovedInstantMessage);
pack_instant_message_block(
msg,
from_id,
from_group,
session_id,
to_id,
name,
message,
offline,
dialog,
id,
parent_estate_id,
region_id,
position,
timestamp,
binary_bucket,
binary_bucket_size);
}
void pack_instant_message_block(
LLMessageSystem* msg,
const LLUUID& from_id,
BOOL from_group,
const LLUUID& session_id,
const LLUUID& to_id,
const std::string& name,
const std::string& message,
U8 offline,
EInstantMessage dialog,
const LLUUID& id,
U32 parent_estate_id,
const LLUUID& region_id,
const LLVector3& position,
U32 timestamp,
const U8* binary_bucket,
S32 binary_bucket_size)
{
msg->nextBlockFast(_PREHASH_AgentData);
msg->addUUIDFast(_PREHASH_AgentID, from_id);
msg->addUUIDFast(_PREHASH_SessionID, session_id);
msg->nextBlockFast(_PREHASH_MessageBlock);
msg->addBOOLFast(_PREHASH_FromGroup, from_group);
msg->addUUIDFast(_PREHASH_ToAgentID, to_id);
msg->addU32Fast(_PREHASH_ParentEstateID, parent_estate_id);
msg->addUUIDFast(_PREHASH_RegionID, region_id);
msg->addVector3Fast(_PREHASH_Position, position);
msg->addU8Fast(_PREHASH_Offline, offline);
msg->addU8Fast(_PREHASH_Dialog, (U8) dialog);
msg->addUUIDFast(_PREHASH_ID, id);
msg->addU32Fast(_PREHASH_Timestamp, timestamp);
msg->addStringFast(_PREHASH_FromAgentName, name);
S32 bytes_left = MTUBYTES;
if(!message.empty())
{
char buffer[MTUBYTES];
int num_written = snprintf(buffer, MTUBYTES, "%s", message.c_str()); /* Flawfinder: ignore */
// snprintf returns number of bytes that would have been written
// had the output not being truncated. In that case, it will
// return either -1 or value >= passed in size value . So a check needs to be added
// to detect truncation, and if there is any, only account for the
// actual number of bytes written..and not what could have been
// written.
if (num_written < 0 || num_written >= MTUBYTES)
{
num_written = MTUBYTES - 1;
LL_WARNS() << "pack_instant_message_block: message truncated: " << message << LL_ENDL;
}
bytes_left -= num_written;
bytes_left = llmax(0, bytes_left);
msg->addStringFast(_PREHASH_Message, buffer);
}
else
{
msg->addStringFast(_PREHASH_Message, NULL);
}
const U8* bb;
if(binary_bucket)
{
bb = binary_bucket;
binary_bucket_size = llmin(bytes_left, binary_bucket_size);
}
else
{
bb = (const U8*)EMPTY_BINARY_BUCKET;
binary_bucket_size = EMPTY_BINARY_BUCKET_SIZE;
}
msg->addBinaryDataFast(_PREHASH_BinaryBucket, bb, binary_bucket_size);
}
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