AOSContext::ReturnCode AOSOutput_Template::execute(AOSContext& context)
{
//a_See if extension for mime type set for the template(s)
AString ext;
if (context.getOutputParams().emitContentFromPath(AOS_BaseModules_Constants::MIME_EXTENSION, ext))
{
m_Services.useConfiguration().setMimeTypeFromExt(ext, context);
}
else
{
//a_Set content type based on request URL extension
m_Services.useConfiguration().setMimeTypeFromExt(context.useRequestUrl().getExtension(), context);
}
// Iterate parameters and build the template
const AXmlElement::CONTAINER& container = context.getOutputParams().getContentContainer();
for (AXmlElement::CONTAINER::const_iterator cit = container.begin(); cit != container.end(); ++cit)
{
//a_Check "if" condition
AString ifElement;
if ((*cit)->getAttributes().get(ASW("if",2), ifElement))
{
if (ifElement.getSize() > 0)
{
//a_Check condition, if not met continue with next template
if (!context.useModel().exists(ifElement))
{
if (context.useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
context.useEventVisitor().startEvent(ARope("Skipping conditional file template IF ")+ifElement, AEventVisitor::EL_DEBUG);
continue;
}
}
}
//a_Check "ifnot" condition
ifElement.clear();
if ((*cit)->getAttributes().get(ASW("ifnot",5), ifElement))
{
if (ifElement.getSize() > 0)
{
//a_Check condition, if not met continue with next template
if (context.useModel().exists(ifElement))
{
if (context.useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
context.useEventVisitor().startEvent(ARope("Skipping conditional file template IFNOT ")+ifElement, AEventVisitor::EL_DEBUG);
continue;
}
}
}
//
// Now we check if this is inlined or filename
//
AString str(1024, 512);
if ((*cit)->getName().equals(AOS_BaseModules_Constants::TEMPLATE))
{
if (context.useEventVisitor().isLoggingDebug())
{
context.useEventVisitor().startEvent(getClass() + ": Creating new inline template", AEventVisitor::EL_DEBUG);
}
// Create a new template
AAutoPtr<ATemplate> pTemplate(m_Services.createTemplate(), true);
// Add inline template
str.clear();
(*cit)->emitContent(str);
AFile_AString strfile(str);
pTemplate->clear();
pTemplate->fromAFile(strfile);
pTemplate->process(context.useLuaTemplateContext(), context.useOutputBuffer());
}
else if ((*cit)->getName().equals(AOS_BaseModules_Constants::FILENAME))
{
// Add filename based template
AFilename filename(m_Services.useConfiguration().getAosBaseDataDirectory());
str.clear();
(*cit)->emitContent(str);
filename.join(str, false);
if (context.useEventVisitor().isLoggingDebug())
{
context.useEventVisitor().startEvent(getClass()+": Fetching/parsing template for: "+filename, AEventVisitor::EL_DEBUG);
}
AAutoPtr<ATemplate> pT(NULL, false);
if (ACacheInterface::NOT_FOUND == m_Services.useCacheManager().getTemplate(context, filename, pT))
{
//a_Not found add error and continue
if (context.useEventVisitor().isLogging(AEventVisitor::EL_WARN))
context.useEventVisitor().startEvent(ARope(getClass())+ASWNL(": Unable to find a template file: ")+filename+ASWNL(", ignoring and continuing"), AEventVisitor::EL_WARN);
continue;
}
//a_Parse template
if (context.useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
{
context.useEventVisitor().startEvent(getClass()+"Processing template file: "+filename, AEventVisitor::EL_DEBUG);
}
AASSERT(this, pT.isNotNull());
pT->process(context.useLuaTemplateContext(), context.useOutputBuffer());
}
}
return AOSContext::RETURN_OK;
}
AOSContext::ReturnCode AOSModule_Template::execute(AOSContext& context, const AXmlElement& params)
{
const AXmlElement *pNode = params.findElement(ASW("template",8));
AAutoPtr<ATemplate> pTemplate(NULL, false);
AAutoPtr<AFile> pFile(NULL, false);
if (pNode)
{
//a_Element contains script
pTemplate.reset(m_Services.createTemplate(), true);
//a_Parse template
AFile_AString strfile;
pNode->emitContent(strfile);
pTemplate->fromAFile(strfile);
}
else
{
//a_Filename provided, use the cache
pNode = params.findElement(AOS_BaseModules_Constants::FILENAME);
if (pNode)
{
AString relativePath;
pNode->emitContent(relativePath);
//a_File to be used (may need caching for it, but for now keep it dynamic)
AFilename filename(m_Services.useConfiguration().getAosBaseDataDirectory(), true);
filename.join(relativePath, false);
if (ACacheInterface::NOT_FOUND == m_Services.useCacheManager().getTemplate(context, filename, pTemplate))
{
//a_Not found, return error
ARope rope;
rope.append(getClass());
rope.append(": Unable to find a template file: ",34);
rope.append(filename);
context.useEventVisitor().startEvent(rope, AEventVisitor::EL_ERROR);
return AOSContext::RETURN_ERROR;
}
}
else
{
context.addError(getClass(), ASWNL("Unable to find module/template nor module/filename, Template module did not execute, params"));
return AOSContext::RETURN_ERROR; //a_Did not find either module/template or module/filename
}
}
//a_Process and save output
ARope ropeOutput;
pTemplate->process(context.useLuaTemplateContext(), ropeOutput);
//a_Add template to debug
if (context.getDumpContextLevel() > 0)
{
AString str("debug/",6);
str.append(getClass());
str.append("/template",9);
AXmlElement& base = context.useModel().addElement(str);
pTemplate->emitXml(base);
}
//a_Insert output into outpath (if any)
pNode = params.findElement(AOS_BaseModules_Constants::PATH);
if (pNode)
{
AString xmlpath;
pNode->emitContent(xmlpath);
if (!xmlpath.isEmpty())
{
//a_Add output as CDATA
context.useModel().addElement(xmlpath).addData(ropeOutput, AXmlElement::ENC_CDATADIRECT);
}
}
else
{
context.useEventVisitor().addEvent(ASWNL("Unable to find module/path, output from template discarded"), AEventVisitor::EL_WARN);
}
return AOSContext::RETURN_OK;
}
u4 AOSContextQueue_ErrorExecutor::_threadproc(AThread& thread)
{
AOSContextQueue_ErrorExecutor *pThis = dynamic_cast<AOSContextQueue_ErrorExecutor *>(thread.getThis());
AASSERT(&thread, pThis);
AOSContext *pContext = NULL;
thread.setRunning(true);
while(thread.isRun())
{
try
{
while (pContext = pThis->_nextContext())
{
#ifndef NDEBUG
if (!ADebugDumpable::isPointerValid(pContext))
{
AString error("AOSContext pointer is invalid: ");
error.append(AString::fromPointer(pContext));
AASSERT_EX(NULL, false, error);
continue;
}
#endif
pContext->useEventVisitor().startEvent(ASW("AOSContextQueue_ErrorExecutor: Processing error condition", 57));
//a_Should only be here if an error occured, if status not set >200, then assume 500
if (pContext->useResponseHeader().getStatusCode() == AHTTPResponseHeader::SC_200_Ok)
pContext->useResponseHeader().setStatusCode(AHTTPResponseHeader::SC_500_Internal_Server_Error);
//a_Check is socket was closed, if so do nothing else, we are done
if (pContext->useConnectionFlags().isSet(AOSContext::CONFLAG_IS_SOCKET_ERROR))
{
//a_Proceed
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
continue;
}
if (
pContext->useContextFlags().isSet(AOSContext::CTXFLAG_IS_RESPONSE_HEADER_SENT)
|| pContext->useContextFlags().isSet(AOSContext::CTXFLAG_IS_OUTPUT_SENT)
)
{
//a_Log to file, output is done already
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
}
else
{
//a_Add XSLT stylesheet for the error XML
//if (m_Services.useConfiguration().exists(ASW("/config/server/error-stylesheet",31)))
//{
// AString errorStylesheet;
// m_Services.useConfiguration().emitString(ASW("/config/server/error-stylesheet",31), errorStylesheet);
// pContext->useModelXmlDocument().addInstruction(AXmlInstruction::XML_STYLESHEET)
// .addAttribute(ASW("type",4), ASW("text/xsl",8))
// .addAttribute(ASW("href",4), errorStylesheet);
//}
//a_Add request header to result XML
if (!pContext->useModel().exists(ASW("REQUEST",7)))
pContext->useRequestHeader().emitXml(pContext->useModel().overwriteElement(ASW("REQUEST",7)));
pContext->useResponseHeader().emitXml(pContext->useModel().overwriteElement(ASW("RESPONSE",8)));
//a_Check if dumpContext is specified to override and emit XML
int dumpContextLevel = pContext->getDumpContextLevel();
pContext->dumpContext(dumpContextLevel);
if (dumpContextLevel > 0)
{
//a_Write contents of the output XML instead of output buffer
m_Services.useConfiguration().setMimeTypeFromExt(ASW("xml",3), *pContext);
pContext->useResponseHeader().setStatusCode(AHTTPResponseHeader::SC_200_Ok);
pContext->writeOutputBuffer(true);
}
else
{
//a_Set the current content type as text/html
pContext->useResponseHeader().set(AHTTPHeader::HT_ENT_Content_Type, ASW("text/html; charset=utf-8",24));
int statusCode = pContext->useResponseHeader().getStatusCode();
AAutoPtr<ATemplate> pTemplate(NULL, false); //a_Call to cache manager will set a template
pContext->clearOutputBuffer();
if (m_Services.useCacheManager().getStatusTemplate(statusCode, pTemplate))
{
//a_Template for this status code is found, so process and emit into output buffer
pTemplate->process(pContext->useLuaTemplateContext(), pContext->useOutputBuffer());
if (pContext->useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
{
ARope rope("Using error template for status ");
rope.append(AString::fromInt(statusCode));
pContext->useEventVisitor().startEvent(rope, AEventVisitor::EL_DEBUG);
}
}
else
{
if (pContext->useEventVisitor().isLogging(AEventVisitor::EL_WARN))
{
ARope rope("Did not find error template for status ");
rope.append(AString::fromInt(statusCode));
pContext->useEventVisitor().startEvent(rope, AEventVisitor::EL_WARN);
}
}
if (pContext->isOutputBufferEmpty())
{
AString strError(1024, 256);
strError.assign("Error ",6);
strError.append(AString::fromInt(pContext->useResponseHeader().getStatusCode()));
strError.append(": ", 2);
strError.append(pContext->useResponseHeader().getStatusCodeReasonPhrase(pContext->useResponseHeader().getStatusCode()));
//a_Put some generic stuff since there is no error template
pContext->useOutputBuffer().append("<html><head><title>",19);
pContext->useOutputBuffer().append(strError);
pContext->useOutputBuffer().append("</title></head>",15);
pContext->useOutputBuffer().append("<body>",6);
pContext->useOutputBuffer().append(strError);
pContext->useOutputBuffer().append("</body></html>",14);
}
try
{
pContext->writeOutputBuffer();
}
catch(ASocketException& ex)
{
pContext->useEventVisitor().addEvent(ex, AEventVisitor::EL_ERROR);
pContext->useConnectionFlags().setBit(AOSContext::CONFLAG_IS_SOCKET_ERROR);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
continue;
}
}
}
//a_Close connection
pContext->useSocket().close();
//a_Proceed
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
continue;
}
AThread::sleep(pThis->m_SleepDelay); //a_Empty queue, avoid thrashing
}
catch(AException& e)
{
pContext->useEventVisitor().addEvent(e, AEventVisitor::EL_ERROR);
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
catch(std::exception& e)
{
pContext->useEventVisitor().addEvent(ASWNL(e.what()), AEventVisitor::EL_ERROR);
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
catch(...)
{
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
pContext->useEventVisitor().addEvent(ASWNL("Unknown exception caught in AOSContextQueue_ErrorExecutor::_threadproc"), AEventVisitor::EL_ERROR);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
break;
}
}
thread.setRunning(false);
return 0;
}