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145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
#ifndef HTTPCOMMON_H_
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#define HTTPCOMMON_H_
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/*includes*/
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#include "contiki.h"
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#include "contiki-net.h"
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/*current state of the request, waiting: handling request, output: sending response*/
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#define STATE_WAITING 0
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#define STATE_OUTPUT 1
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/*definitions of the line ending characters*/
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#define LINE_FEED_CHAR '\n'
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#define CARRIAGE_RETURN_CHAR '\r'
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/*needed for web services giving all path (http://172.16.79.0/services/light1)
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* instead relative (/services/light1) in HTTP request. Ex: Restlet lib. does it*/
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extern const char* http_string;
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/*HTTP method strings*/
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extern const char* http_get_string;
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extern const char* http_head_string;
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extern const char* http_post_string;
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extern const char* http_put_string;
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extern const char* http_delete_string;
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extern const char* httpv1_1;
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extern const char* line_end;
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extern const char* contiki;
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extern const char* close;
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/*header names*/
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extern const char* HTTP_HEADER_NAME_CONTENT_TYPE;
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extern const char* HTTP_HEADER_NAME_CONTENT_LENGTH;
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extern const char* HTTP_HEADER_NAME_LOCATION;
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extern const char* HTTP_HEADER_NAME_CONNECTION;
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extern const char* HTTP_HEADER_NAME_SERVER;
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extern const char* HTTP_HEADER_NAME_HOST;
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extern const char* HTTP_HEADER_NAME_IF_NONE_MATCH;
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extern const char* HTTP_HEADER_NAME_ETAG;
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extern const char* header_delimiter;
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/*Configuration parameters*/
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#define HTTP_PORT 8080
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#define HTTP_DATA_BUFF_SIZE 600
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#define INCOMING_DATA_BUFF_SIZE 102 /*100+2, 100 = max url len, 2 = space char+'\0'*/
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/*HTTP method types*/
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typedef enum {
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HTTP_METHOD_GET = (1 << 0),
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HTTP_METHOD_HEAD = (1 << 1),
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HTTP_METHOD_POST = (1 << 2),
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HTTP_METHOD_PUT = (1 << 3),
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HTTP_METHOD_DELETE = (1 << 4)
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} http_method_t;
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//DY : FIXME right now same enum names with COAP with different values. Will this work fine?
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typedef enum {
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OK_200 = 200,
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CREATED_201 = 201,
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NOT_MODIFIED_304 = 304,
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BAD_REQUEST_400 = 400,
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NOT_FOUND_404 = 404,
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METHOD_NOT_ALLOWED_405 = 405,
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REQUEST_URI_TOO_LONG_414 = 414,
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UNSUPPORTED_MADIA_TYPE_415 = 415,
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INTERNAL_SERVER_ERROR_500 = 500,
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BAD_GATEWAY_502 = 502,
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SERVICE_UNAVAILABLE_503 = 503,
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GATEWAY_TIMEOUT_504 = 504
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} status_code_t;
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typedef enum {
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TEXT_PLAIN,
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TEXT_XML,
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TEXT_CSV,
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TEXT_HTML,
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APPLICATION_XML,
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APPLICATION_EXI,
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APPLICATION_JSON,
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APPLICATION_LINK_FORMAT,
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APPLICATION_WWW_FORM,
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UNKNOWN_CONTENT_TYPE
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} content_type_t;
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/*Header type*/
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struct http_header_t {
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struct http_header_t* next;
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char* name;
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char* value;
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};
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typedef struct http_header_t http_header_t;
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/*This structure contains information about the HTTP request.*/
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struct http_request_t {
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char* url;
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uint16_t url_len;
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http_method_t request_type; /* GET, POST, etc */
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char* query;
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uint16_t query_len;
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http_header_t* headers;
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uint16_t payload_len;
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uint8_t* payload;
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};
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typedef struct http_request_t http_request_t;
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/*This structure contains information about the HTTP response.*/
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struct http_response_t {
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status_code_t status_code;
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char* status_string;
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http_header_t* headers;
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uint16_t payload_len;
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uint8_t* payload;
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};
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typedef struct http_response_t http_response_t;
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/*This structure contains information about the TCP Connection.*/
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typedef struct {
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struct psock sin, sout; /*Protosockets for incoming and outgoing communication*/
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struct pt outputpt;
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char inputbuf[INCOMING_DATA_BUFF_SIZE]; /*to put incoming data in*/
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uint8_t state;
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http_request_t request;
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http_response_t response;
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} connection_state_t;
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/*error definitions*/
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typedef enum {
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HTTP_NO_ERROR,
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/*Memory errors*/
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HTTP_MEMORY_ALLOC_ERR,
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HTTP_MEMORY_BOUNDARY_EXCEEDED,
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/*specific errors*/
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HTTP_XML_NOT_VALID,
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HTTP_SOAP_MESSAGE_NOT_VALID,
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HTTP_URL_TOO_LONG,
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HTTP_URL_INVALID
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} http_error_t;
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#endif /*HTTPCOMMON_H_*/
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