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reprapfirmware-dc42/Webserver.h
David Crocker 2e154a3e91 Various
Added new variable "extr" in Json response to report extruder positions
Added new fileinfo request type, returns file size, object height, and
total filament needed (if available)
Fixed bug in returning last command response in Json response
Disable interrupts when adding/removing network request structs from
linked lists, in case lwip does callbacks from ISR contexts
2014-04-25 23:15:17 +01:00

112 lines
3.5 KiB
C++

/****************************************************************************************************
RepRapFirmware - Webserver
This class serves a single-page web applications to the attached network. This page forms the user's
interface with the RepRap machine. This software interprests returned values from the page and uses it
to Generate G Codes, which it sends to the RepRap. It also collects values from the RepRap like
temperature and uses those to construct the web page.
The page itself - reprap.htm - uses Knockout.js and Jquery.js. See:
http://knockoutjs.com/
http://jquery.com/
-----------------------------------------------------------------------------------------------------
Version 0.2
10 May 2013
Adrian Bowyer
RepRap Professional Ltd
http://reprappro.com
Licence: GPL
****************************************************************************************************/
#ifndef WEBSERVER_H
#define WEBSERVER_H
#define KO_START "rr_"
#define KO_FIRST 3
#define POST_LENGTH (1300) // max amount of POST data we can accept
const unsigned int gcodeBufLength = 2048; // size of our gcode ring buffer, ideally a power of 2
const unsigned int minReportedFreeBuf = 100; // the minimum free buffer we report if not zero
const unsigned int maxReportedFreeBuf = 900; // the max we own up to having free, to avoid overlong messages
class Webserver
{
public:
Webserver(Platform* p);
bool GCodeAvailable();
byte ReadGCode();
bool WebserverIsWriting();
void Init();
void Spin();
void Exit();
void Diagnostics();
void SetPassword(const char* pw);
void SetName(const char* nm);
void HandleReply(const char *s, bool error);
void AppendReply(const char* s);
private:
void ParseClientLine();
void SendFile(const char* nameOfFileToSend);
void ParseQualifier();
void CheckPassword();
void LoadGcodeBuffer(const char* gc, bool convertWeb);
bool PrintHeadString();
bool PrintLinkTable();
void GetGCodeList();
void GetJsonResponse(const char* request);
void GetStatusResponse(uint8_t type);
void ParseGetPost();
bool CharFromClient(char c);
void BlankLineFromClient();
void InitialisePost();
bool MatchBoundary(char c);
void JsonReport(bool ok, const char* request);
unsigned int GetGcodeBufferSpace() const;
unsigned int GetReportedGcodeBufferSpace() const;
void ProcessGcode(const char* gc);
bool GetFileInfo(const char *fileName, unsigned long& length, float& height, float& filamentUsed);
static bool FindHeight(const char* buf, size_t len, float& height);
static bool FindFilamentUsed(const char* buf, size_t len, float& filamentUsed);
Platform* platform;
bool active;
float lastTime;
float longWait;
bool receivingPost;
char postBoundary[POST_LENGTH];
int boundaryCount;
char postFileName[POST_LENGTH];
FileStore* postFile;
bool postSeen;
bool getSeen;
bool clientLineIsBlank;
char clientLine[STRING_LENGTH+2]; // 2 chars extra so we can append \n\0
char clientRequest[STRING_LENGTH];
char clientQualifier[STRING_LENGTH];
char jsonResponse[STRING_LENGTH+1];
char gcodeBuffer[gcodeBufLength];
unsigned int gcodeReadIndex, gcodeWriteIndex; // head and tail indices into gcodeBuffer
int clientLinePointer;
bool gotPassword;
char password[SHORT_STRING_LENGTH+1];
char myName[SHORT_STRING_LENGTH+1];
char gcodeReply[STRING_LENGTH+1];
uint16_t seq; // reply sequence number, so that the client can tell if a json reply is new or not
};
#endif