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+/**
+ * @file llviewerdisplayname.cpp
+ * @brief Wrapper for display name functionality
+ *
+ * $LicenseInfo:firstyear=2010&license=viewerlgpl$
+ * 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 "llviewerprecompiledheaders.h"
+
+#include "llviewerdisplayname.h"
+
+// viewer includes
+#include "llagent.h"
+#include "llviewerregion.h"
+#include "llvoavatar.h"
+
+// library includes
+#include "llavatarnamecache.h"
+#include "llhttpclient.h"
+#include "llhttpnode.h"
+#include "llnotificationsutil.h"
+#include "llui.h" // getLanguage()
+
+namespace LLViewerDisplayName
+{
+ // Fired when viewer receives server response to display name change
+ set_name_signal_t sSetDisplayNameSignal;
+
+ // Fired when there is a change in the agent's name
+ name_changed_signal_t sNameChangedSignal;
+
+ void addNameChangedCallback(const name_changed_signal_t::slot_type& cb)
+ {
+ sNameChangedSignal.connect(cb);
+ }
+
+}
+
+class LLSetDisplayNameResponder : public LLHTTPClient::Responder
+{
+public:
+ // only care about errors
+ /*virtual*/ void error(U32 status, const std::string& reason)
+ {
+ LLViewerDisplayName::sSetDisplayNameSignal(false, "", LLSD());
+ LLViewerDisplayName::sSetDisplayNameSignal.disconnect_all_slots();
+ }
+};
+
+void LLViewerDisplayName::set(const std::string& display_name, const set_name_slot_t& slot)
+{
+ // TODO: simple validation here
+
+ LLViewerRegion* region = gAgent.getRegion();
+ llassert(region);
+ std::string cap_url = region->getCapability("SetDisplayName");
+ if (cap_url.empty())
+ {
+ // this server does not support display names, report error
+ slot(false, "unsupported", LLSD());
+ return;
+ }
+
+ // People API can return localized error messages. Indicate our
+ // language preference via header.
+ LLSD headers;
+ headers["Accept-Language"] = LLUI::getLanguage();
+
+ // People API requires both the old and new value to change a variable.
+ // Our display name will be in cache before the viewer's UI is available
+ // to request a change, so we can use direct lookup without callback.
+ LLAvatarName av_name;
+ if (!LLAvatarNameCache::get( gAgent.getID(), &av_name))
+ {
+ slot(false, "name unavailable", LLSD());
+ return;
+ }
+
+ // People API expects array of [ "old value", "new value" ]
+ LLSD change_array = LLSD::emptyArray();
+ change_array.append(av_name.mDisplayName);
+ change_array.append(display_name);
+
+ llinfos << "Set name POST to " << cap_url << llendl;
+
+ // Record our caller for when the server sends back a reply
+ sSetDisplayNameSignal.connect(slot);
+
+ // POST the requested change. The sim will not send a response back to
+ // this request directly, rather it will send a separate message after it
+ // communicates with the back-end.
+ LLSD body;
+ body["display_name"] = change_array;
+ LLHTTPClient::post(cap_url, body, new LLSetDisplayNameResponder, headers);
+}
+
+class LLSetDisplayNameReply : public LLHTTPNode
+{
+ LOG_CLASS(LLSetDisplayNameReply);
+public:
+ /*virtual*/ void post(
+ LLHTTPNode::ResponsePtr response,
+ const LLSD& context,
+ const LLSD& input) const
+ {
+ LLSD body = input["body"];
+
+ S32 status = body["status"].asInteger();
+ bool success = (status == 200);
+ std::string reason = body["reason"].asString();
+ LLSD content = body["content"];
+
+ llinfos << "status " << status << " reason " << reason << llendl;
+
+ // If viewer's concept of display name is out-of-date, the set request
+ // will fail with 409 Conflict. If that happens, fetch up-to-date
+ // name information.
+ if (status == 409)
+ {
+ LLUUID agent_id = gAgent.getID();
+ // Flush stale data
+ LLAvatarNameCache::erase( agent_id );
+ // Queue request for new data
+ LLAvatarName ignored;
+ LLAvatarNameCache::get( agent_id, &ignored );
+ // Kill name tag, as it is wrong
+ LLVOAvatar::invalidateNameTag( agent_id );
+ }
+
+ // inform caller of result
+ LLViewerDisplayName::sSetDisplayNameSignal(success, reason, content);
+ LLViewerDisplayName::sSetDisplayNameSignal.disconnect_all_slots();
+ }
+};
+
+
+class LLDisplayNameUpdate : public LLHTTPNode
+{
+ /*virtual*/ void post(
+ LLHTTPNode::ResponsePtr response,
+ const LLSD& context,
+ const LLSD& input) const
+ {
+ LLSD body = input["body"];
+ LLUUID agent_id = body["agent_id"];
+ std::string old_display_name = body["old_display_name"];
+ // By convention this record is called "agent" in the People API
+ LLSD name_data = body["agent"];
+
+ // Inject the new name data into cache
+ LLAvatarName av_name;
+ av_name.fromLLSD( name_data );
+
+ llinfos << "name-update now " << LLDate::now()
+ << " next_update " << LLDate(av_name.mNextUpdate)
+ << llendl;
+
+ // Name expiration time may be provided in headers, or we may use a
+ // default value
+ // *TODO: get actual headers out of ResponsePtr
+ //LLSD headers = response->mHeaders;
+ LLSD headers;
+ av_name.mExpires =
+ LLAvatarNameCache::nameExpirationFromHeaders(headers);
+
+ LLAvatarNameCache::insert(agent_id, av_name);
+
+ // force name tag to update
+ LLVOAvatar::invalidateNameTag(agent_id);
+
+ LLSD args;
+ args["OLD_NAME"] = old_display_name;
+ args["SLID"] = av_name.mUsername;
+ args["NEW_NAME"] = av_name.mDisplayName;
+ LLNotificationsUtil::add("DisplayNameUpdate", args);
+ if (agent_id == gAgent.getID())
+ {
+ LLViewerDisplayName::sNameChangedSignal();
+ }
+ }
+};
+
+LLHTTPRegistration<LLSetDisplayNameReply>
+ gHTTPRegistrationMessageSetDisplayNameReply(
+ "/message/SetDisplayNameReply");
+
+LLHTTPRegistration<LLDisplayNameUpdate>
+ gHTTPRegistrationMessageDisplayNameUpdate(
+ "/message/DisplayNameUpdate");