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150 lines
3.2 KiB
150 lines
3.2 KiB
#include "WebServer.h"
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WebServer * WebServer::instance = NULL;
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void webServerCallback(CmdRequest *req)
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{
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WebServer::getInstance()->handleRequest(req);
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}
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WebServer::WebServer(Stream &streamIn, const WebMethod * PROGMEM methodsIn):espLink(streamIn, webServerCallback),methods(methodsIn),stream(streamIn)
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{
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instance = this;
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}
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void WebServer::init()
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{
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registerCallback();
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}
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void WebServer::loop()
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{
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// TODO: resubscribe periodically
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espLink.readLoop();
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}
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void WebServer::registerCallback()
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{
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espLink.sendPacketStart(CMD_CB_ADD, 100, 1);
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espLink.sendPacketArg(5, (uint8_t *)"webCb");
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espLink.sendPacketEnd();
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}
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void WebServer::invokeMethod(RequestReason reason, WebMethod * method, CmdRequest *req)
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{
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switch(reason)
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{
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case WS_BUTTON:
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{
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uint16_t len = espLink.cmdArgLen(req);
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char bf[len+1];
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bf[len] = 0;
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espLink.cmdPopArg(req, bf, len);
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method->callback(BUTTON_PRESS, bf, len);
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}
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break;
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case WS_SUBMIT:
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{
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/* TODO: iterate through fields */
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}
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return;
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default:
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break;
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}
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args_to_send = -1;
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method->callback( reason == WS_LOAD ? LOAD : REFRESH, NULL, 0);
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if( args_to_send == -1 )
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{
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espLink.sendPacketStart(CMD_WEB_JSON_DATA, 100, 2);
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espLink.sendPacketArg(4, remote_ip);
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espLink.sendPacketArg(2, (uint8_t *)&remote_port);
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}
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while( args_to_send-- > 0 )
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espLink.sendPacketArg(0, NULL);
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espLink.sendPacketEnd();
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}
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void WebServer::handleRequest(CmdRequest *req)
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{
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uint16_t shrt;
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espLink.cmdPopArg(req, &shrt, 2);
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RequestReason reason = (RequestReason)shrt;
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espLink.cmdPopArg(req, &remote_ip, 4);
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espLink.cmdPopArg(req, &remote_port, 2);
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{
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uint16_t len = espLink.cmdArgLen(req);
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char bf[len+1];
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bf[len] = 0;
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espLink.cmdPopArg(req, bf, len);
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const WebMethod * meth = methods;
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do
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{
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WebMethod m;
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memcpy_P(&m, meth, sizeof(WebMethod));
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if( m.url == NULL || m.callback == NULL )
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break;
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if( strcmp_P(bf, m.url) == 0 )
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{
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invokeMethod(reason, &m, req);
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return;
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}
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meth++;
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}while(1);
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}
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if( reason == WS_SUBMIT )
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return;
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// empty response
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espLink.sendPacketStart(CMD_WEB_JSON_DATA, 100, 2);
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espLink.sendPacketArg(4, remote_ip);
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espLink.sendPacketArg(2, (uint8_t *)&remote_port);
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espLink.sendPacketEnd();
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}
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void WebServer::setArgNum(uint8_t num)
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{
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espLink.sendPacketStart(CMD_WEB_JSON_DATA, 100, 2 + (args_to_send = num));
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espLink.sendPacketArg(4, remote_ip);
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espLink.sendPacketArg(2, (uint8_t *)&remote_port);
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}
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void WebServer::setArgString(const char * name, const char * value)
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{
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if( args_to_send <= 0 )
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return;
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uint8_t nlen = strlen(name);
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uint8_t vlen = strlen(value);
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char buf[nlen + vlen + 3];
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buf[0] = WEB_STRING;
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strcpy(buf+1, name);
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strcpy(buf+2+nlen, value);
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espLink.sendPacketArg(nlen+vlen+2, (uint8_t *)buf);
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args_to_send--;
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}
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void WebServer::setArgStringP(const char * name, const char * value)
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{
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if( args_to_send <= 0 )
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return;
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uint8_t nlen = strlen(name);
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uint8_t vlen = strlen_P(value);
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char buf[nlen + vlen + 3];
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buf[0] = WEB_STRING;
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strcpy(buf+1, name);
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strcpy_P(buf+2+nlen, value);
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espLink.sendPacketArg(nlen+vlen+2, (uint8_t *)buf);
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args_to_send--;
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}
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