Second Life viewer sources 1.13.2.12

1 files changed, 145 insertions, 0 deletions

diff --git a/linden/indra/llmessage/lldispatcher.cpp b/linden/indra/llmessage/lldispatcher.cpp
new file mode 100644
index 0000000..cf83079
--- /dev/null
+++ b/linden/indra/llmessage/lldispatcher.cpp
@@ -0,0 +1,145 @@
+/** 
+ * @file lldispatcher.cpp
+ * @brief Implementation of the dispatcher object.
+ *
+ * Copyright (c) 2004-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+#include "linden_common.h"
+
+#include "lldispatcher.h"
+
+#include <algorithm>
+#include "llstl.h"
+#include "message.h"
+
+///----------------------------------------------------------------------------
+/// Class lldispatcher
+///----------------------------------------------------------------------------
+
+
+LLDispatcher::LLDispatcher()
+{
+}
+
+LLDispatcher::~LLDispatcher()
+{
+}
+
+bool LLDispatcher::isHandlerPresent(const key_t& name) const
+{
+        if(mHandlers.find(name) != mHandlers.end())
+        {
+                return true;
+        }
+        return false;
+}
+
+void LLDispatcher::copyAllHandlerNames(keys_t& names) const
+{
+        // copy the names onto the vector we are given
+        std::transform(
+                mHandlers.begin(),
+                mHandlers.end(),
+                std::back_insert_iterator<keys_t>(names),
+                llselect1st<dispatch_map_t::value_type>());
+}
+
+bool LLDispatcher::dispatch(
+        const key_t& name,
+        const LLUUID& invoice,
+        const sparam_t& strings) const
+{
+        dispatch_map_t::const_iterator it = mHandlers.find(name);
+        if(it != mHandlers.end())
+        {
+                LLDispatchHandler* func = (*it).second;
+                return (*func)(this, name, invoice, strings);
+        }
+        return false;
+}
+
+LLDispatchHandler* LLDispatcher::addHandler(
+        const key_t& name, LLDispatchHandler* func)
+{
+        dispatch_map_t::iterator it = mHandlers.find(name);
+        LLDispatchHandler* old_handler = NULL;
+        if(it != mHandlers.end())
+        {
+                old_handler = (*it).second;
+                mHandlers.erase(it);
+        }
+        if(func)
+        {
+                // only non-null handlers so that we don't have to worry about
+                // it later.
+                mHandlers.insert(dispatch_map_t::value_type(name, func));
+        }
+        return old_handler;
+}
+
+// static
+bool LLDispatcher::unpackMessage(
+                LLMessageSystem* msg,
+                LLDispatcher::key_t& method,
+                LLUUID& invoice,
+                LLDispatcher::sparam_t& parameters)
+{
+        char buf[MAX_STRING];   /*Flawfinder: ignore*/
+        msg->getStringFast(_PREHASH_MethodData, _PREHASH_Method, MAX_STRING, buf);
+        method.assign(buf);
+        msg->getUUIDFast(_PREHASH_MethodData, _PREHASH_Invoice, invoice);
+        S32 size;
+        S32 count = msg->getNumberOfBlocksFast(_PREHASH_ParamList);
+        for (S32 i = 0; i < count; ++i)
+        {
+                // we treat the SParam as binary data (since it might be an 
+                // LLUUID in compressed form which may have embedded \0's,)
+                size = msg->getSizeFast(_PREHASH_ParamList, i, _PREHASH_Parameter);
+                msg->getBinaryDataFast(
+                        _PREHASH_ParamList, _PREHASH_Parameter,
+                        buf, size, i, MAX_STRING-1);
+
+                // If the last byte of the data is 0x0, this is either a normally
+                // packed string, or a binary packed UUID (which for these messages
+                // are packed with a 17th byte 0x0).  Unpack into a std::string
+                // without the trailing \0, so "abc\0" becomes std::string("abc", 3)
+                // which matches const char* "abc".
+                if (size > 0
+                        && buf[size-1] == 0x0)
+                {
+                        // special char*/size constructor because UUIDs may have embedded
+                        // 0x0 bytes.
+                        std::string binary_data(buf, size-1);
+                        parameters.push_back(binary_data);
+                }
+                else
+                {
+                        // This is either a NULL string, or a string that was packed 
+                        // incorrectly as binary data, without the usual trailing '\0'.
+                        std::string string_data(buf, size);
+                        parameters.push_back(string_data);
+                }
+        }
+        return true;
+}