esp32-nmea2000-obp60/lib/webserver/GwWebServer.cpp

122 lines
4.0 KiB
C++

#include <ESPmDNS.h>
#include "GwWebServer.h"
#include <map>
class EmbeddedFile;
static std::map<String,EmbeddedFile*> embeddedFiles;
class EmbeddedFile {
public:
const uint8_t *start;
int len;
String contentType;
EmbeddedFile(String name,String contentType, const uint8_t *start,int len){
this->start=start;
this->len=len;
this->contentType=contentType;
embeddedFiles[name]=this;
}
} ;
#define EMBED_GZ_FILE(fileName, binName, contentType) \
extern const uint8_t binName##_File[] asm("_binary_" #binName "_start"); \
extern const uint8_t binName##_FileLen[] asm("_binary_" #binName "_size"); \
const EmbeddedFile binName##_Config(fileName,contentType,(const uint8_t*)binName##_File,(int)binName##_FileLen);
#include "GwEmbeddedFiles.h"
void sendEmbeddedFile(String name,String contentType,AsyncWebServerRequest *request){
std::map<String,EmbeddedFile*>::iterator it=embeddedFiles.find(name);
if (it != embeddedFiles.end()){
EmbeddedFile* found=it->second;
AsyncWebServerResponse *response=request->beginResponse_P(200,contentType,found->start,found->len);
response->addHeader(F("Content-Encoding"), F("gzip"));
request->send(response);
}
else{
request->send(404, "text/plain", "Not found");
}
}
GwWebServer::GwWebServer(GwLog* logger,GwRequestQueue *queue,int port){
server=new AsyncWebServer(port);
this->queue=queue;
this->logger=logger;
}
void GwWebServer::begin(){
server->onNotFound([](AsyncWebServerRequest *request){
request->send(404, "text/plain", "Not found");
});
server->on("/", HTTP_GET, [](AsyncWebServerRequest *request){
sendEmbeddedFile("index.html","text/html",request);
});
for (auto it=embeddedFiles.begin();it != embeddedFiles.end();it++){
String uri=String("/")+it->first;
server->on(uri.c_str(), HTTP_GET, [it](AsyncWebServerRequest *request){
sendEmbeddedFile(it->first,it->second->contentType,request);
});
}
server->begin();
LOG_DEBUG(GwLog::LOG,"HTTP server started");
MDNS.addService("_http","_tcp",80);
}
GwWebServer::~GwWebServer(){
server->end();
delete server;
vQueueDelete(queue);
}
void GwWebServer::handleAsyncWebRequest(AsyncWebServerRequest *request, GwRequestMessage *msg)
{
GwRequestQueue::MessageSendStatus st=queue->sendAndWait(msg,msg->getTimeout());
if (st == GwRequestQueue::MSG_ERR)
{
msg->unref(); //our
request->send(500, "text/plain", "queue full");
return;
}
if (st == GwRequestQueue::MSG_OK)
{
request->send(200, msg->getContentType(), msg->getResult());
msg->unref();
return;
}
LOG_DEBUG(GwLog::DEBUG + 1, "switching to async for %s",msg->getName().c_str());
//msg is handed over to async handling
bool finished = false;
AsyncWebServerResponse *r = request->beginChunkedResponse(
msg->getContentType(), [this,msg, finished](uint8_t *ptr, size_t len, size_t len2) -> size_t
{
LOG_DEBUG(GwLog::DEBUG + 1, "try read for %s",msg->getName().c_str());
if (msg->isHandled() || msg->wait(1))
{
int rt = msg->consume(ptr, len);
LOG_DEBUG(GwLog::DEBUG + 1, "async response available, return %d\n", rt);
return rt;
}
else
return RESPONSE_TRY_AGAIN;
},
NULL);
request->onDisconnect([this,msg](void)
{
LOG_DEBUG(GwLog::DEBUG + 1, "onDisconnect");
msg->unref();
});
request->send(r);
}
bool GwWebServer::registerMainHandler(const char *url,RequestCreator creator){
server->on(url,HTTP_GET, [this,creator,url](AsyncWebServerRequest *request){
GwRequestMessage *msg=(*creator)(request);
if (!msg){
LOG_DEBUG(GwLog::DEBUG,"creator returns NULL for %s",url);
request->send(404, "text/plain", "Not found");
return;
}
handleAsyncWebRequest(request,msg);
});
return true;
}