Second Life viewer sources 1.13.2.12

1 files changed, 468 insertions, 0 deletions

diff --git a/linden/indra/llmessage/llhttpnode.cpp b/linden/indra/llmessage/llhttpnode.cpp
new file mode 100644
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+++ b/linden/indra/llmessage/llhttpnode.cpp
@@ -0,0 +1,468 @@
+/** 
+ * @file llhttpnode.cpp
+ * @brief Implementation of classes for generic HTTP/LSL/REST handling.
+ *
+ * Copyright (c) 2006-2007, 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 "llhttpnode.h"
+
+#include "boost/tokenizer.hpp"
+
+#include "llstl.h"
+
+static const std::string CONTEXT_REQUEST("request");
+static const std::string CONTEXT_WILDCARD("wildcard");
+
+/**
+ * LLHTTPNode
+ */
+ 
+class LLHTTPNode::Impl
+{
+public:
+        typedef std::map<std::string, LLHTTPNode*> ChildMap;
+        
+        ChildMap mNamedChildren;
+        LLHTTPNode* mWildcardChild;
+        std::string mWildcardName;
+        std::string mWildcardKey;
+        LLHTTPNode* mParentNode;
+        
+        Impl() : mWildcardChild(NULL), mParentNode(NULL) { }
+        
+        LLHTTPNode* findNamedChild(const std::string& name) const;
+};
+
+
+LLHTTPNode* LLHTTPNode::Impl::findNamedChild(const std::string& name) const
+{
+        LLHTTPNode* child = get_ptr_in_map(mNamedChildren, name);
+
+        if (!child  &&  ((name[0] == '*') || (name == mWildcardName)))
+        {
+                child = mWildcardChild;
+        }
+        
+        return child;
+}
+
+
+LLHTTPNode::LLHTTPNode()
+        : impl(* new Impl)
+{
+}
+
+// virtual
+LLHTTPNode::~LLHTTPNode()
+{
+        std::for_each(impl.mNamedChildren.begin(), impl.mNamedChildren.end(),
+                DeletePairedPointer());
+
+        delete impl.mWildcardChild;
+        
+        delete &impl;
+}
+
+
+namespace {
+        class NotImplemented
+        {
+        };
+}
+
+// virtual
+LLSD LLHTTPNode::get() const
+{
+        throw NotImplemented();
+}
+
+// virtual
+LLSD LLHTTPNode::put(const LLSD& input) const
+{
+        throw NotImplemented();
+}
+
+// virtual
+LLSD LLHTTPNode::post(const LLSD& input) const
+{
+        throw NotImplemented();
+}
+
+
+// virtual
+void LLHTTPNode::get(LLHTTPNode::ResponsePtr response, const LLSD& context) const
+{
+        try
+        {
+                response->result(get());
+        }
+        catch (NotImplemented)
+        {
+                response->methodNotAllowed();
+        }
+}
+
+// virtual
+void LLHTTPNode::put(LLHTTPNode::ResponsePtr response, const LLSD& context, const LLSD& input) const
+{
+        try
+        {
+                response->result(put(input));
+        }
+        catch (NotImplemented)
+        {
+                response->methodNotAllowed();
+        }
+}
+
+// virtual
+void LLHTTPNode::post(LLHTTPNode::ResponsePtr response, const LLSD& context, const LLSD& input) const
+{
+        try
+        {
+                response->result(post(input));
+        }
+        catch (NotImplemented)
+        {
+                response->methodNotAllowed();
+        }
+}
+
+// virtual
+void LLHTTPNode::del(LLHTTPNode::ResponsePtr response, const LLSD& context) const
+{
+    try
+    {
+        response->result(del(context));
+    }
+    catch (NotImplemented)
+    {
+        response->methodNotAllowed();
+    }
+
+}
+
+// virtual
+LLSD LLHTTPNode::del() const
+{
+        throw NotImplemented();
+}
+
+// virtual
+LLSD LLHTTPNode::del(const LLSD&) const
+{
+        return del();
+}
+
+
+// virtual
+LLHTTPNode* LLHTTPNode::getChild(const std::string& name, LLSD& context) const
+{
+        LLHTTPNode* namedChild = get_ptr_in_map(impl.mNamedChildren, name);
+        if (namedChild)
+        {
+                return namedChild;
+        }
+        
+        if (impl.mWildcardChild
+        &&  impl.mWildcardChild->validate(name, context))
+        {
+                context[CONTEXT_REQUEST][CONTEXT_WILDCARD][impl.mWildcardKey] = name;
+                return impl.mWildcardChild;
+        }
+        
+        return NULL;
+}
+
+
+// virtual
+bool LLHTTPNode::handles(const LLSD& remainder, LLSD& context) const
+{
+        return remainder.size() == 0;
+}
+
+// virtual
+bool LLHTTPNode::validate(const std::string& name, LLSD& context) const
+{
+        return false;
+}
+
+const LLHTTPNode* LLHTTPNode::traverse(
+        const std::string& path, LLSD& context) const
+{
+        typedef boost::tokenizer< boost::char_separator<char> > tokenizer;
+        boost::char_separator<char> sep("/", "", boost::drop_empty_tokens);
+        tokenizer tokens(path, sep);
+        tokenizer::iterator iter = tokens.begin();
+        tokenizer::iterator end = tokens.end();
+
+        const LLHTTPNode* node = this;
+        for(; iter != end; ++iter)
+        {
+                LLHTTPNode* child = node->getChild(*iter, context);
+                if(!child) 
+                {
+                        lldebugs << "LLHTTPNode::traverse: Couldn't find '" << *iter << "'" << llendl;
+                        break; 
+                }
+                lldebugs << "LLHTTPNode::traverse: Found '" << *iter << "'" << llendl;
+
+                node = child;
+        }
+
+        LLSD& remainder = context[CONTEXT_REQUEST]["remainder"];
+        for(; iter != end; ++iter)
+        {
+                remainder.append(*iter);
+        }
+
+        return node->handles(remainder, context) ? node : NULL;
+}
+
+
+
+void LLHTTPNode::addNode(const std::string& path, LLHTTPNode* nodeToAdd)
+{
+        typedef boost::tokenizer< boost::char_separator<char> > tokenizer;
+        boost::char_separator<char> sep("/", "", boost::drop_empty_tokens);
+        tokenizer tokens(path, sep);
+        tokenizer::iterator iter = tokens.begin();
+        tokenizer::iterator end = tokens.end();
+
+        LLHTTPNode* node = this;
+        for(; iter != end; ++iter)
+        {
+                LLHTTPNode* child = node->impl.findNamedChild(*iter);
+                if (!child) { break; }
+                node = child;
+        }
+        
+        if (iter == end)
+        {
+                llwarns << "LLHTTPNode::addNode: already a node that handles "
+                        << path << llendl;
+                return;
+        }
+        
+        while (true)
+        {
+                std::string pathPart = *iter;
+                
+                ++iter;
+                bool lastOne = iter == end;
+                
+                LLHTTPNode* nextNode = lastOne ? nodeToAdd : new LLHTTPNode();
+                
+                switch (pathPart[0])
+                {
+                        case '<':
+                                // *NOTE: This should really validate that it is of
+                                // the proper form: <wildcardkey> so that the substr()
+                                // generates the correct key name.
+                                node->impl.mWildcardChild = nextNode;
+                                node->impl.mWildcardName = pathPart;
+                                if(node->impl.mWildcardKey.empty())
+                                {
+                                        node->impl.mWildcardKey = pathPart.substr(
+                                                1,
+                                                pathPart.size() - 2);
+                                }
+                                break;
+                        case '*':
+                                node->impl.mWildcardChild = nextNode;
+                                if(node->impl.mWildcardName.empty())
+                                {
+                                        node->impl.mWildcardName = pathPart;
+                                }
+                                break;
+                        
+                        default:
+                                node->impl.mNamedChildren[pathPart] = nextNode;
+                }
+                nextNode->impl.mParentNode = node;
+
+                if (lastOne) break;
+                node = nextNode;
+        }
+}
+
+static void append_node_paths(LLSD& result,
+        const std::string& name, const LLHTTPNode* node)
+{
+        result.append(name);
+        
+        LLSD paths = node->allNodePaths();
+        LLSD::array_const_iterator i = paths.beginArray();
+        LLSD::array_const_iterator end = paths.endArray();
+        
+        for (; i != end; ++i)
+        {
+                result.append(name + "/" + (*i).asString());
+        }
+}
+
+LLSD LLHTTPNode::allNodePaths() const
+{
+        LLSD result;
+        
+        Impl::ChildMap::const_iterator i = impl.mNamedChildren.begin();
+        Impl::ChildMap::const_iterator end = impl.mNamedChildren.end();
+        for (; i != end; ++i)
+        {
+                append_node_paths(result, i->first, i->second);
+        }
+        
+        if (impl.mWildcardChild)
+        {
+                append_node_paths(result, impl.mWildcardName, impl.mWildcardChild);
+        }
+        
+        return result;
+}
+
+
+const LLHTTPNode* LLHTTPNode::rootNode() const
+{
+        const LLHTTPNode* node = this;
+        
+        while (true)
+        {
+                const LLHTTPNode* next = node->impl.mParentNode;
+                if (!next)
+                {
+                        return node;
+                }
+                node = next;
+        }
+}
+
+
+const LLHTTPNode* LLHTTPNode::findNode(const std::string& name) const
+{
+        return impl.findNamedChild(name);
+}
+
+LLHTTPNode::Response::~Response()
+{
+}
+
+void LLHTTPNode::Response::status(S32 code)
+{
+        status(code, "Unknown Error");
+}
+
+void LLHTTPNode::Response::notFound(const std::string& message)
+{
+        status(404, message);
+}
+
+void LLHTTPNode::Response::notFound()
+{
+        status(404, "Not Found");
+}
+
+void LLHTTPNode::Response::methodNotAllowed()
+{
+        status(405, "Method Not Allowed");
+}
+
+void LLHTTPNode::describe(Description& desc) const
+{
+        desc.shortInfo("unknown service (missing describe() method)");
+}
+
+
+const LLChainIOFactory* LLHTTPNode::getProtocolHandler() const
+{
+        return NULL;
+}
+
+
+
+namespace
+{
+    typedef std::map<std::string, LLHTTPRegistrar::NodeFactory*>  FactoryMap;
+    
+    FactoryMap& factoryMap()
+    {
+        static FactoryMap theMap;
+        return theMap;
+    }
+}
+
+LLHTTPRegistrar::NodeFactory::~NodeFactory() { }
+
+void LLHTTPRegistrar::registerFactory(
+    const std::string& path, NodeFactory& factory)
+{
+        factoryMap()[path] = &factory;
+}
+
+void LLHTTPRegistrar::buildAllServices(LLHTTPNode& root)
+{
+    const FactoryMap& map = factoryMap();
+    
+    FactoryMap::const_iterator i = map.begin();
+    FactoryMap::const_iterator end = map.end();
+    for (; i != end; ++i)
+    {
+                llinfos << "LLHTTPRegistrar::buildAllServices adding node for path "
+                        << i->first << llendl;
+                
+        root.addNode(i->first, i->second->build());
+    }
+}
+
+LLPointer<LLSimpleResponse> LLSimpleResponse::create()
+{
+        return new LLSimpleResponse();
+}
+
+LLSimpleResponse::~LLSimpleResponse()
+{
+}
+
+void LLSimpleResponse::result(const LLSD& result)
+{
+        status(200, "OK");
+}
+
+void LLSimpleResponse::status(S32 code, const std::string& message)
+{
+        mCode = code;
+        mMessage = message;
+}
+
+void LLSimpleResponse::print(std::ostream& out) const
+{
+        out << mCode << " " << mMessage;
+}
+
+
+std::ostream& operator<<(std::ostream& out, const LLSimpleResponse& resp)
+{
+        resp.print(out);
+        return out;
+}