kore/includes/http.h
Joris Vink cefeaf7992 HTTP layer improvements.
Add HTTP_REQUEST_NO_CONTENT_LENGTH which can be set by
a handler before calling http_response() to avoid Kore
from setting the content-length altogether.

If we are on a SPDY connection do not close the stream
if we do not pass data to http_response().
2015-05-15 19:12:18 +02:00

297 lines
8.5 KiB
C

/*
* Copyright (c) 2013 Joris Vink <joris@coders.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __H_HTTP_H
#define __H_HTTP_H
#if defined(__cplusplus)
extern "C" {
#endif
#define HTTP_KEEPALIVE_TIME 20
#define HTTP_HSTS_ENABLE 31536000
#define HTTP_HEADER_MAX_LEN 4096
#define HTTP_BODY_MAX_LEN 10240000
#define HTTP_URI_LEN 2000
#define HTTP_USERAGENT_LEN 256
#define HTTP_REQ_HEADER_MAX 25
#define HTTP_MAX_QUERY_ARGS 10
#define HTTP_MAX_COOKIES 10
#define HTTP_REQUEST_LIMIT 1000
#define HTTP_ARG_TYPE_RAW 0
#define HTTP_ARG_TYPE_BYTE 1
#define HTTP_ARG_TYPE_INT16 2
#define HTTP_ARG_TYPE_UINT16 3
#define HTTP_ARG_TYPE_INT32 4
#define HTTP_ARG_TYPE_UINT32 5
#define HTTP_ARG_TYPE_STRING 6
#define HTTP_ARG_TYPE_INT64 7
#define HTTP_ARG_TYPE_UINT64 8
#define HTTP_STATE_ERROR 0
#define HTTP_STATE_CONTINUE 1
#define HTTP_STATE_COMPLETE 2
#define HTTP_STATE_RETRY 3
struct http_header {
char *header;
char *value;
TAILQ_ENTRY(http_header) list;
};
struct http_arg {
char *name;
void *value;
u_int32_t len;
char *s_value;
u_int32_t s_len;
TAILQ_ENTRY(http_arg) list;
};
#define COPY_ARG_TYPE(v, l, t) \
do { \
if (l != NULL) \
*l = sizeof(t); \
*(t *)nout = v; \
} while (0);
#define COPY_ARG_INT64(type, sign) \
do { \
int err; \
type nval; \
nval = (type)kore_strtonum64(q->s_value, sign, &err); \
if (err != KORE_RESULT_OK) \
return (KORE_RESULT_ERROR); \
COPY_ARG_TYPE(nval, len, type); \
} while (0);
#define COPY_ARG_INT(min, max, type) \
do { \
int err; \
int64_t nval; \
nval = kore_strtonum(q->s_value, 10, min, max, &err); \
if (err != KORE_RESULT_OK) \
return (KORE_RESULT_ERROR); \
COPY_ARG_TYPE(nval, len, type); \
} while (0);
#define CACHE_STRING() \
do { \
if (q->s_value == NULL) { \
q->s_len = q->len + 1; \
q->s_value = kore_malloc(q->s_len); \
kore_strlcpy(q->s_value, q->value, q->s_len); \
} \
} while (0);
#define COPY_AS_INTTYPE_64(type, sign) \
do { \
if (nout == NULL) \
return (KORE_RESULT_ERROR); \
CACHE_STRING(); \
COPY_ARG_INT64(type, sign); \
} while (0);
#define COPY_AS_INTTYPE(min, max, type) \
do { \
if (nout == NULL) \
return (KORE_RESULT_ERROR); \
CACHE_STRING(); \
COPY_ARG_INT(min, max, type); \
} while (0);
#define http_argument_type(r, n, so, no, l, t) \
http_argument_get(r, n, so, no, l, t)
#define http_argument_get_string(n, o, l) \
http_argument_type(req, n, (void **)o, NULL, l, HTTP_ARG_TYPE_STRING)
#define http_argument_get_byte(n, o) \
http_argument_type(req, n, NULL, o, NULL, HTTP_ARG_TYPE_BYTE)
#define http_argument_get_uint16(n, o) \
http_argument_type(req, n, NULL, o, NULL, HTTP_ARG_TYPE_UINT16)
#define http_argument_get_int16(n, o) \
http_argument_type(req, n, NULL, o, NULL, HTTP_ARG_TYPE_INT16)
#define http_argument_get_uint32(n, o) \
http_argument_type(req, n, NULL, o, NULL, HTTP_ARG_TYPE_UINT32)
#define http_argument_get_int32(n, o) \
http_argument_type(req, n, NULL, o, NULL, HTTP_ARG_TYPE_INT32)
#define http_argument_get_uint64(n, o) \
http_argument_type(req, n, NULL, o, NULL, HTTP_ARG_TYPE_UINT64)
#define http_argument_get_int64(n, o) \
http_argument_type(req, n, NULL, o, NULL, HTTP_ARG_TYPE_INT64)
struct http_file {
char *name;
char *filename;
u_int8_t *data;
u_int32_t len;
TAILQ_ENTRY(http_file) list;
};
#define HTTP_METHOD_GET 0
#define HTTP_METHOD_POST 1
#define HTTP_METHOD_PUT 2
#define HTTP_METHOD_DELETE 3
#define HTTP_METHOD_HEAD 4
#define HTTP_REQUEST_COMPLETE 0x01
#define HTTP_REQUEST_DELETE 0x02
#define HTTP_REQUEST_SLEEPING 0x04
#define HTTP_REQUEST_PGSQL_QUEUE 0x10
#define HTTP_REQUEST_EXPECT_BODY 0x20
#define HTTP_REQUEST_RETAIN_EXTRA 0x40
#define HTTP_REQUEST_NO_CONTENT_LENGTH 0x80
struct kore_task;
struct http_request {
u_int8_t method;
u_int8_t flags;
u_int8_t fsm_state;
u_int16_t status;
u_int64_t start;
u_int64_t end;
u_int64_t total;
char *host;
char *path;
char *agent;
struct connection *owner;
struct spdy_stream *stream;
struct kore_buf *http_body;
void *hdlr_extra;
char *query_string;
u_int8_t *multipart_body;
struct kore_module_handle *hdlr;
LIST_HEAD(, kore_task) tasks;
LIST_HEAD(, kore_pgsql) pgsqls;
TAILQ_HEAD(, http_header) req_headers;
TAILQ_HEAD(, http_header) resp_headers;
TAILQ_HEAD(, http_arg) arguments;
TAILQ_HEAD(, http_file) files;
TAILQ_ENTRY(http_request) list;
TAILQ_ENTRY(http_request) olist;
};
struct http_state {
const char *name;
int (*cb)(struct http_request *);
};
extern int http_request_count;
extern u_int16_t http_header_max;
extern u_int64_t http_body_max;
extern u_int64_t http_hsts_enable;
extern u_int16_t http_keepalive_time;
extern u_int32_t http_request_limit;
void http_init(void);
void http_process(void);
const char *http_status_text(int);
time_t http_date_to_time(char *);
void http_request_free(struct http_request *);
void http_request_sleep(struct http_request *);
void http_request_wakeup(struct http_request *);
char *http_body_text(struct http_request *);
void http_process_request(struct http_request *, int);
u_int8_t *http_body_bytes(struct http_request *, u_int32_t *);
void http_response(struct http_request *, int, void *, u_int32_t);
void http_response_stream(struct http_request *, int, void *,
u_int64_t, int (*cb)(struct netbuf *), void *);
int http_request_header(struct http_request *,
const char *, char **);
void http_response_header(struct http_request *,
const char *, const char *);
int http_request_new(struct connection *, struct spdy_stream *,
const char *, const char *, const char *, const char *,
struct http_request **);
int http_state_run(struct http_state *, u_int8_t,
struct http_request *);
int http_argument_urldecode(char *);
int http_header_recv(struct netbuf *);
int http_generic_404(struct http_request *);
int http_populate_arguments(struct http_request *);
int http_populate_multipart_form(struct http_request *, int *);
int http_argument_get(struct http_request *,
const char *, void **, void *, u_int32_t *, int);
int http_file_lookup(struct http_request *, const char *, char **,
u_int8_t **, u_int32_t *);
void kore_accesslog(struct http_request *);
enum http_status_code {
HTTP_STATUS_CONTINUE = 100,
HTTP_STATUS_SWITCHING_PROTOCOLS = 101,
HTTP_STATUS_OK = 200,
HTTP_STATUS_CREATED = 201,
HTTP_STATUS_ACCEPTED = 202,
HTTP_STATUS_NON_AUTHORITATIVE = 203,
HTTP_STATUS_NO_CONTENT = 204,
HTTP_STATUS_RESET_CONTENT = 205,
HTTP_STATUS_PARTIAL_CONTENT = 206,
HTTP_STATUS_MULTIPLE_CHOICES = 300,
HTTP_STATUS_MOVED_PERMANENTLY = 301,
HTTP_STATUS_FOUND = 302,
HTTP_STATUS_SEE_OTHER = 303,
HTTP_STATUS_NOT_MODIFIED = 304,
HTTP_STATUS_USE_PROXY = 305,
HTTP_STATUS_TEMPORARY_REDIRECT = 307,
HTTP_STATUS_BAD_REQUEST = 400,
HTTP_STATUS_UNAUTHORIZED = 401,
HTTP_STATUS_PAYMENT_REQUIRED = 402,
HTTP_STATUS_FORBIDDEN = 403,
HTTP_STATUS_NOT_FOUND = 404,
HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
HTTP_STATUS_NOT_ACCEPTABLE = 406,
HTTP_STATUS_PROXY_AUTH_REQUIRED = 407,
HTTP_STATUS_REQUEST_TIMEOUT = 408,
HTTP_STATUS_CONFLICT = 409,
HTTP_STATUS_GONE = 410,
HTTP_STATUS_LENGTH_REQUIRED = 411,
HTTP_STATUS_PRECONDITION_FAILED = 412,
HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE = 413,
HTTP_STATUS_REQUEST_URI_TOO_LARGE = 414,
HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
HTTP_STATUS_REQUEST_RANGE_INVALID = 416,
HTTP_STATUS_EXPECTATION_FAILED = 417,
HTTP_STATUS_INTERNAL_ERROR = 500,
HTTP_STATUS_NOT_IMPLEMENTED = 501,
HTTP_STATUS_BAD_GATEWAY = 502,
HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
HTTP_STATUS_GATEWAY_TIMEOUT = 504,
HTTP_STATUS_BAD_VERSION = 505
};
#if defined(__cplusplus)
}
#endif
#endif /* !__H_HTTP_H */