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#pragma once
#ifndef PICOHTTP_H_HEADERGUARD
#define PICOHTTP_H_HEADERGUARD
#include <stddef.h>
#include <stdint.h>
#define PICOHTTP_MAJORVERSION(x) ( (x & 0x7f00) >> 8 )
#define PICOHTTP_MINORVERSION(x) ( (x & 0x007f) )
#define PICOHTTP_METHOD_GET 1
#define PICOHTTP_METHOD_HEAD 2
#define PICOHTTP_METHOD_POST 3
#define PICOHTTP_CODING_IDENTITY 0
#define PICOHTTP_CODING_COMPRESS 1
#define PICOHTTP_CODING_DEFLATE 2
#define PICOHTTP_CODING_GZIP 4
#define PICOHTTP_CODING_CHUNKED 8
#define PICOHTTP_STATUS_200_OK 200
#define PICOHTTP_STATUS_400_BAD_REQUEST 400
#define PICOHTTP_STATUS_404_NOT_FOUND 404
#define PICOHTTP_STATUS_405_METHOD_NOT_ALLOWED 405
#define PICOHTTP_STATUS_414_REQUEST_URI_TOO_LONG 414
#define PICOHTTP_STATUS_500_INTERNAL_SERVER_ERROR 500
#define PICOHTTP_STATUS_501_NOT_IMPLEMENTED 501
#define PICOHTTP_STATUS_505_HTTP_VERSION_NOT_SUPPORTED 505
struct picohttpIoOps {
int (*read)(size_t /*count*/, char* /*buf*/, void*);
int (*write)(size_t /*count*/, char const* /*buf*/, void*);
int16_t (*getch)(void*); // returns -1 on error
int (*putch)(char, void*);
int (*flush)(void*);
void *data;
};
#define picohttpIoWrite(ioops,size,buf) (ioops->write(size, buf, ioops->data))
#define picohttpIoRead(ioops,size,buf) (ioops->read(size, buf, ioops->data))
#define picohttpIoGetch(ioops) (ioops->getch(ioops->data))
#define picohttpIoPutch(ioops,c) (ioops->putch(c, ioops->data))
#define picohttpIoFlush(ioops) (ioops->flush(ioops->data))
enum picohttpVarType {
PICOHTTP_TYPE_UNDEFINED = 0,
PICOHTTP_TYPE_INTEGER = 1,
PICOHTTP_TYPE_REAL = 2,
PICOHTTP_TYPE_BOOLEAN = 3,
PICOHTTP_TYPE_TEXT = 4
};
struct picohttpVarSpec {
char const * const name;
enum picohttpVarType type;
size_t max_len;
};
struct picohttpVar {
struct picohttpVarSpec const *spec;
union {
char *text;
float real;
int integer;
uint8_t boolean;
} value;
struct picohttpVar *next;
};
struct picohttpRequest;
typedef void (*picohttpHandler)(struct picohttpRequest*);
struct picohttpURLRoute {
char const * urlhead;
struct picohttpVarSpec const * get_vars;
picohttpHandler handler;
uint16_t max_urltail_len;
int16_t allowed_methods;
};
#define PICOHTTP_EPOCH_YEAR 1980
struct picohttpDateTime {
unsigned int Y:7; /* EPOCH + 127 years */
unsigned int M:4;
unsigned int D:5;
unsigned int h:5;
unsigned int m:6;
unsigned int s:5; /* seconds / 2 */
};
struct picohttpRequest {
struct picohttpIoOps const * ioops;
struct picohttpURLRoute const * route;
struct picohttpVar *get_vars;
char *url;
char *urltail;
int16_t status;
int16_t method;
struct {
uint8_t major;
uint8_t minor;
} httpversion;
struct {
char const *contenttype;
size_t contentlength;
uint8_t contentcoding;
uint8_t te;
} query;
struct {
char const *contenttype;
char const *disposition;
struct picohttpDateTime lastmodified;
uint16_t max_age;
size_t contentlength;
uint8_t contentencoding;
uint8_t transferencoding;
} response;
struct {
size_t octets;
uint8_t header;
} sent;
};
void picohttpProcessRequest(
struct picohttpIoOps const * const ioops,
struct picohttpURLRoute const * const routes );
void picohttpStatusResponse(
struct picohttpRequest *req, int16_t status );
int picohttpResponseSendHeader (
struct picohttpRequest * const req );
int picohttpResponseWrite (
struct picohttpRequest * const req,
size_t len,
char const *buf );
#endif/*PICOHTTP_H_HEADERGUARD*/
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