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nginx-0.0.1-2003-05-13-20:02:32 import

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This commit is contained in:
Igor Sysoev 2003-05-13 16:02:32 +00:00
parent 6b863e353d
commit d581fd58e1
18 changed files with 443 additions and 449 deletions
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2
src/core/nginx.c
View File

@ -67,9 +67,11 @@ int main(int argc, char *const *argv)
#endif
#if 0
if (ngx_os_init(&ngx_log) == NGX_ERROR) {
exit(1);
}
#endif
ngx_init_array(ngx_listening_sockets, ngx_pool, 10, sizeof(ngx_listen_t),
1);

1
src/core/ngx_alloc.c
View File

@ -73,6 +73,7 @@ void ngx_destroy_pool(ngx_pool_t *pool)
break;
}
}
pool = NULL;
}
void *ngx_palloc(ngx_pool_t *pool, size_t size)

2
src/core/ngx_connection.h
View File

@ -26,7 +26,7 @@ struct ngx_connection_s {
off_t sent;
int (*handler)(ngx_connection_t *c);
void (*handler)(ngx_connection_t *c);
void *ctx;
ngx_server_t *servers;

2
src/core/ngx_listen.h
View File

@ -22,7 +22,7 @@ typedef struct {
int protocol;
int flags; /* Winsock2 flags */
int (*handler)(ngx_connection_t *c); /* handler of accepted
void (*handler)(ngx_connection_t *c); /* handler of accepted
connection */
void *ctx; /* ngx_http_conf_ctx_t, for example */
void *servers; /* array of ngx_http_in_addr_t, for example */

2
src/core/ngx_modules.c
View File

@ -29,7 +29,9 @@ ngx_module_t *ngx_modules[] = {
/* &ngx_http_ssi_filter_module, */
&ngx_http_index_module,
/*
&ngx_http_proxy_module,
*/
NULL
};

4
src/event/modules/ngx_kqueue_module.c
View File

@ -343,9 +343,7 @@ int ngx_kqueue_process_events(ngx_log_t *log)
case EVFILT_AIO:
ev->ready = 1;
if (ev->event_handler(ev) == NGX_ERROR) {
ev->close_handler(ev);
}
ev->event_handler(ev);
break;

4
src/event/modules/ngx_poll_module.c
View File

@ -251,9 +251,7 @@ int ngx_poll_process_events(ngx_log_t *log)
}
}
if (ev->event_handler(ev) == NGX_ERROR) {
ev->close_handler(ev);
}
ev->event_handler(ev);
}
if (ready != 0) {

3
src/event/modules/ngx_select_module.c
View File

@ -306,8 +306,7 @@ int ngx_select_process_events(ngx_log_t *log)
ngx_select_del_event(ev, NGX_READ_EVENT, 0);
}
if (ev->event_handler(ev) == NGX_ERROR)
ev->close_handler(ev);
ev->event_handler(ev);
}
if (ready != 0) {

1
src/event/ngx_event.c
View File

@ -9,7 +9,6 @@
#include <ngx_listen.h>
#include <ngx_connection.h>
#include <ngx_event.h>
#include <ngx_event_accept.h>
#include <ngx_select_module.h>

11
src/event/ngx_event.h
View File

@ -28,9 +28,11 @@ typedef struct {
struct ngx_event_s {
void *data;
void (*event_handler)(ngx_event_t *ev);
int (*event_handler)(ngx_event_t *ev);
#if 0
int (*close_handler)(ngx_event_t *ev);
#endif
void *context;
char *action;
@ -39,7 +41,9 @@ struct ngx_event_s {
ngx_event_t *prev; /* queue in mutex(), aio_read(), aio_write() */
ngx_event_t *next; /* */
#if 0
int (*timer_handler)(ngx_event_t *ev);
#endif
ngx_event_t *timer_prev;
ngx_event_t *timer_next;
@ -165,7 +169,7 @@ typedef struct {
#define NGX_HAVE_KQUEUE_EVENT 8
/* The event filter supports low water mark - kqueue's NOTE_LOWAT.
Early kqueue implementations have no NOTE_LOWAT so we need a separate flag */
kqueue in FreeBSD 4.1-4.2 has no NOTE_LOWAT so we need a separate flag */
#define NGX_HAVE_LOWAT_EVENT 0x00000010
/* The event filter notifies only the changes (the edges)
@ -294,6 +298,9 @@ extern int ngx_event_flags;
#endif
void ngx_event_accept(ngx_event_t *ev);
ssize_t ngx_event_recv_core(ngx_connection_t *c, char *buf, size_t size);
int ngx_event_close_connection(ngx_event_t *ev);

40
src/event/ngx_event_accept.c
View File

@ -7,14 +7,9 @@
#include <ngx_log.h>
#include <ngx_connection.h>
#include <ngx_event.h>
#include <ngx_event_close.h>
#include <ngx_event_accept.h>
/* This function should always return NGX_OK even there are some failures
because if we return NGX_ERROR then listening socket would be closed */
int ngx_event_accept(ngx_event_t *ev)
void ngx_event_accept(ngx_event_t *ev)
{
int instance;
socklen_t len;
@ -37,9 +32,16 @@ int ngx_event_accept(ngx_event_t *ev)
#endif
do {
ngx_test_null(pool, ngx_create_pool(ls->pool_size, ev->log), NGX_OK);
pool = ngx_create_pool(ls->pool_size, ev->log);
if (pool == NULL) {
return;
}
sa = ngx_palloc(pool, ls->socklen);
if (sa == NULL) {
return;
}
ngx_test_null(sa, ngx_palloc(pool, ls->socklen), NGX_OK);
len = ls->socklen;
s = accept(ls->fd, sa, &len);
@ -50,12 +52,12 @@ int ngx_event_accept(ngx_event_t *ev)
if (err == NGX_EAGAIN) {
ngx_log_error(NGX_LOG_NOTICE, ev->log, err,
"EAGAIN while accept %s", ls->addr_text.data);
return NGX_OK;
return;
}
ngx_log_error(NGX_LOG_ALERT, ev->log, err,
"accept %s failed", ls->addr_text.data);
return NGX_OK;
return;
}
@ -66,7 +68,7 @@ int ngx_event_accept(ngx_event_t *ev)
if (ngx_blocking(s) == -1) {
ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno,
ngx_blocking_n " %s failed", ls->addr_text.data);
return NGX_OK;
return;
}
}
#endif
@ -78,14 +80,14 @@ int ngx_event_accept(ngx_event_t *ev)
if (ngx_nonblocking(s) == -1) {
ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno,
ngx_nonblocking_n " %s failed", ls->addr_text.data);
return NGX_OK;
return;
}
}
#else
if (ngx_nonblocking(s) == -1) {
ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno,
ngx_nonblocking_n " %s failed", ls->addr_text.data);
return NGX_OK;
return;
}
#endif
@ -133,13 +135,13 @@ int ngx_event_accept(ngx_event_t *ev)
/* STUB ? */ wev->timer = rev->timer = 10000;
wev->timer_handler = rev->timer_handler = ngx_event_close_connection;
wev->close_handler = rev->close_handler = ngx_event_close_connection;
c->ctx = ls->ctx;
c->servers = ls->servers;
ngx_test_null(c->log, ngx_palloc(c->pool, sizeof(ngx_log_t)), NGX_OK);
c->log = ngx_palloc(c->pool, sizeof(ngx_log_t));
if (c->log == NULL) {
return;
}
ngx_memcpy(c->log, ev->log, sizeof(ngx_log_t));
rev->log = wev->log = c->log;
@ -159,7 +161,7 @@ int ngx_event_accept(ngx_event_t *ev)
if (ngx_event_flags & NGX_HAVE_EDGE_EVENT) {
if (ngx_edge_add_event(ev) == NGX_ERROR) {
return NGX_OK;
return;
}
}
@ -183,5 +185,5 @@ int ngx_event_accept(ngx_event_t *ev)
#endif
} while (ev->available);
return NGX_OK;
return;
}

10
src/event/ngx_event_accept.h
View File

@ -1,10 +0,0 @@
#ifndef _NGX_EVENT_ACCEPT_H_INCLUDED_
#define _NGX_EVENT_ACCEPT_H_INCLUDED_
#include <ngx_event.h>
int ngx_event_accept(ngx_event_t *ev);
#endif /* _NGX_EVENT_ACCEPT_H_INCLUDED_ */

4
src/event/ngx_event_timer.c
View File

@ -136,9 +136,7 @@ void ngx_event_expire_timers(ngx_msec_t timer)
ev->timedout = 1;
}
if (ev->event_handler(ev) == NGX_ERROR) {
ev->close_handler(ev);
}
ev->event_handler(ev);
}
}
}

60
src/http/modules/ngx_http_static_handler.c
View File

@ -1,6 +1,6 @@
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_string.h>
#include <ngx_file.h>
#include <ngx_hunk.h>
@ -14,9 +14,9 @@ ngx_http_module_t ngx_http_static_module;
int ngx_http_static_handler(ngx_http_request_t *r)
{
int rc;
ngx_err_t err;
ngx_hunk_t *h;
int rc;
ngx_err_t err;
ngx_hunk_t *h;
ngx_http_log_ctx_t *ctx;
#if 0
@ -40,10 +40,7 @@ int ngx_http_static_handler(ngx_http_request_t *r)
"ngx_http_static_handler: "
ngx_open_file_n " %s failed", r->file.name.data);
if (err == NGX_ENOENT) {
return NGX_HTTP_NOT_FOUND;
} else if (err == NGX_ENOTDIR) {
if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
return NGX_HTTP_NOT_FOUND;
} else {
@ -126,11 +123,10 @@ int ngx_http_static_handler(ngx_http_request_t *r)
ngx_test_null(h->file, ngx_pcalloc(r->pool, sizeof(ngx_file_t)),
NGX_HTTP_INTERNAL_SERVER_ERROR);
rc = ngx_http_send_header(r);
ngx_http_send_header(r);
if (r->header_only)
return rc;
return NGX_OK;
#if 1
h->type = NGX_HUNK_FILE|NGX_HUNK_LAST;
h->file_pos = 0;
@ -141,44 +137,14 @@ int ngx_http_static_handler(ngx_http_request_t *r)
rc = ngx_http_output_filter(r, h);
ngx_log_debug(r->connection->log, "0 output_filter: %d" _ rc);
if (r->main == NULL) {
if (rc == NGX_AGAIN) {
ngx_http_set_write_handler(r);
#else
#define BLK 10000
{
int i, s;
s = ngx_file_size(r->file.info);
for (i = 0; i < s; i += BLK) {
ngx_test_null(h, ngx_pcalloc(r->pool, sizeof(ngx_hunk_t)),
NGX_HTTP_INTERNAL_SERVER_ERROR);
ngx_test_null(h->file, ngx_pcalloc(r->pool, sizeof(ngx_file_t)),
NGX_HTTP_INTERNAL_SERVER_ERROR);
h->type = NGX_HUNK_FILE;
if (s - i <= BLK) {
h->type |= NGX_HUNK_LAST;
} else {
ngx_http_finalize_request(r, 0);
}
h->pos.file = i;
h->last.file = i + BLK;
if (h->last.file > s) {
h->last.file = s;
}
h->file->fd = r->file.fd;
h->file->log = r->connection->log;
rc = ngx_http_output_filter(r, h);
ngx_log_debug(r->connection->log, "0 output_filter: %d" _ rc);
}
}
#endif
return rc;
return NGX_OK;
}

7
src/http/ngx_http.h
View File

@ -235,6 +235,13 @@ void ngx_http_init_connection(ngx_connection_t *c);
int ngx_parse_http_request_line(ngx_http_request_t *r);
int ngx_parse_http_header_line(ngx_http_request_t *r, ngx_hunk_t *h);
int ngx_http_handler(ngx_http_request_t *r);
void ngx_http_finalize_request(ngx_http_request_t *r, int error);
void ngx_http_set_write_handler(ngx_http_request_t *r);
void ngx_http_close_request(ngx_http_request_t *r, int error);
void ngx_http_close_connection(ngx_connection_t *c);
int ngx_http_init_client_request_body(ngx_http_request_t *r, int size);

47
src/http/ngx_http_core_module.c
View File

@ -517,7 +517,8 @@ int ngx_http_redirect(ngx_http_request_t *r, int redirect)
/* log request */
return ngx_http_close_request(r, 0);
ngx_http_close_request(r, 0);
return NGX_OK;
}
@ -529,48 +530,8 @@ int ngx_http_error(ngx_http_request_t *r, int error)
/* log request */
ngx_http_special_response_handler(r, error);
return ngx_http_close_request(r, 0);
}
int ngx_http_close_request(ngx_http_request_t *r, int error)
{
ngx_connection_t *c;
ngx_http_log_ctx_t *ctx;
c = r->connection;
if (error) {
r->headers_out.status = error;
}
ngx_http_log_handler(r);
if (r->file.fd != NGX_INVALID_FILE) {
if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
ngx_close_file_n " \"%s\" failed", r->file.name.data);
}
}
/* ctx->url was allocated from r->pool */
ctx = (ngx_http_log_ctx_t *) c->log->data;
ctx->url = NULL;
ngx_destroy_pool(r->pool);
if (c->read->timer_set) {
ngx_del_timer(c->read);
c->read->timer_set = 0;
}
if (c->write->timer_set) {
ngx_del_timer(c->write);
c->write->timer_set = 0;
}
ngx_log_debug(c->log, "http request closed");
return 0;
ngx_http_close_request(r, 0);
return NGX_OK;
}

3
src/http/ngx_http_core_module.h
View File

@ -103,8 +103,5 @@ int ngx_http_core_translate_handler(ngx_http_request_t *r);
int ngx_http_internal_redirect(ngx_http_request_t *r, ngx_str_t uri);
int ngx_http_error(ngx_http_request_t *r, int error);
int ngx_http_finalize_request(ngx_http_request_t *r, int error);
int ngx_http_close_request(ngx_http_request_t *r, int error);
#endif /* _NGX_HTTP_CORE_H_INCLUDED_ */

689
src/http/ngx_http_event.c
View File

@ -21,26 +21,18 @@
static void ngx_http_init_request(ngx_event_t *ev);
static void ngx_http_process_request_line(ngx_event_t *rev);
static void ngx_http_process_request_headers(ngx_event_t *rev);
static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
static void ngx_http_writer(ngx_event_t *ev);
static int ngx_http_process_request(ngx_event_t *ev);
static int ngx_http_process_request_header_line(ngx_http_request_t *r);
static int ngx_http_request_handler(ngx_http_request_t *r, int error);
static int ngx_http_writer(ngx_event_t *ev);
static int ngx_http_block_read(ngx_event_t *ev);
static int ngx_http_read_discarded_body(ngx_event_t *ev);
static int ngx_http_set_keepalive(ngx_http_request_t *r);
static int ngx_http_keepalive_handler(ngx_event_t *ev);
static int ngx_http_set_lingering_close(ngx_http_request_t *r);
static int ngx_http_lingering_close_handler(ngx_event_t *ev);
static int ngx_http_close_connection(ngx_connection_t *c);
static void ngx_http_set_keepalive(ngx_http_request_t *r);
static void ngx_http_keepalive_handler(ngx_event_t *ev);
static void ngx_http_set_lingering_close(ngx_http_request_t *r);
static void ngx_http_lingering_close_handler(ngx_event_t *ev);
static void ngx_http_header_parse_error(ngx_http_request_t *r, int parse_err);
static size_t ngx_http_log_error(void *data, char *buf, size_t len);
@ -69,8 +61,12 @@ static ngx_http_header_t headers_in[] = {
{ ngx_string("Content-Length"),
offsetof(ngx_http_headers_in_t, content_length) },
#if 0
{ ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) },
#endif
{ ngx_null_string, 0 }
};
@ -135,8 +131,6 @@ void ngx_http_init_connection(ngx_connection_t *c)
if (ngx_add_event(rev, NGX_READ_EVENT, event) == NGX_ERROR) {
ngx_http_close_connection(c);
}
return;
}
@ -202,8 +196,6 @@ static void ngx_http_init_request(ngx_event_t *rev)
rev->event_handler = ngx_http_process_request_line;
ngx_http_process_request_line(rev);
return;
}
@ -268,7 +260,7 @@ static void ngx_http_process_request_line(ngx_event_t *rev)
r->request_line.len = r->request_end - r->request_start;
/* if the large client header is enabled then
/* if the large client headers are enabled then
we need to copy a request line */
if (ngx_http_large_client_header) {
@ -346,7 +338,8 @@ static void ngx_http_process_request_line(ngx_event_t *rev)
}
if (r->http_version == NGX_HTTP_VERSION_9) {
/* STUB */ return;
ngx_http_handler(r);
return;
}
lcx->action = "reading client request headers";
@ -358,12 +351,18 @@ static void ngx_http_process_request_line(ngx_event_t *rev)
r->header_in->pos = r->header_in->last = r->header_in->start;
}
rev->event_handler = ngx_http_process_request_headers;
ngx_http_process_request_headers(rev);
return;
} else if (rc != NGX_AGAIN) {
/* there was error while a request line parsing */
ngx_http_header_parse_error(r, rc);
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
@ -383,6 +382,7 @@ static void ngx_http_process_request_line(ngx_event_t *rev)
if (offset == 0) {
ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI);
ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
return;
}
@ -405,59 +405,108 @@ static void ngx_http_process_request_line(ngx_event_t *rev)
} else {
ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI);
ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
return;
}
}
rev->event_handler = ngx_http_process_request_headers;
ngx_http_process_request_headers(rev);
return;
}
static void ngx_http_process_request_headers(ngx_event_t *rev)
{
int rc, offset;
int rc, i, offset;
size_t len;
ssize_t n;
ngx_table_elt_t *h;
ngx_connection_t *c;
ngx_http_request_t *r;
ngx_http_log_ctx_t *ctx;
c = (ngx_connection_t *) rev->data;
r = (ngx_http_request_t *) c->data;
ngx_log_debug(rev->log, "http process request header line");
if (rev->timedout) {
ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
ngx_http_close_connection(c);
return;
}
n = ngx_http_read_request_header(r);
if (n == NGX_AGAIN || n == NGX_ERROR) {
return;
}
rc = NGX_AGAIN;
for ( ;; ) {
if (rc == NGX_AGAIN) {
n = ngx_http_read_request_header(r);
if (n == NGX_AGAIN || n == NGX_ERROR) {
return;
}
}
rc = ngx_parse_http_header_line(r, r->header_in);
/* a header line has been parsed successfully */
if (rc == NGX_OK) {
if (ngx_http_process_request_header_line(r) == NGX_ERROR) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
/* a header line has been parsed successfully */
h = ngx_push_table(r->headers_in.headers);
if (h == NULL) {
ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
ngx_http_close_connection(c);
return;
}
h->key.len = r->header_name_end - r->header_name_start;
h->value.len = r->header_end - r->header_start;
/* if the large client headers are enabled then
we need to copy the header name and value */
if (ngx_http_large_client_header) {
h->key.data = ngx_palloc(r->pool,
h->key.len + 1 + h->value.len + 1);
if (h->key.data == NULL) {
ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
ngx_http_close_connection(c);
return;
}
h->value.data = h->key.data + h->key.len + 1;
ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
} else {
h->key.data = r->header_name_start;
h->key.data[h->key.len] = '\0';
h->value.data = r->header_start;
h->value.data[h->value.len] = '\0';
}
for (i = 0; headers_in[i].name.len != 0; i++) {
if (headers_in[i].name.len != h->key.len) {
continue;
}
if (ngx_strcasecmp(headers_in[i].name.data, h->key.data) == 0) {
*((ngx_table_elt_t **)
((char *) &r->headers_in + headers_in[i].offset)) = h;
}
}
ngx_log_debug(r->connection->log, "HTTP header: '%s: %s'" _
h->key.data _ h->value.data);
if (ngx_http_large_client_header
&& r->header_in->pos == r->header_in->last)
{
r->header_in->pos = r->header_in->last = r->header_in->start;
}
return NGX_AGAIN;
/* a whole header has been parsed successfully */
} else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
/* a whole header has been parsed successfully */
ngx_log_debug(r->connection->log, "HTTP header done");
if (r->headers_in.host) {
@ -472,7 +521,8 @@ static void ngx_http_process_request_headers(ngx_event_t *rev)
if (r->http_version > NGX_HTTP_VERSION_10) {
ngx_http_header_parse_error(r,
NGX_HTTP_PARSE_NO_HOST_HEADER);
return NGX_HTTP_BAD_REQUEST;
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
r->headers_in.host_name_len = 0;
}
@ -484,18 +534,22 @@ static void ngx_http_process_request_headers(ngx_event_t *rev)
if (r->headers_in.content_length_n == NGX_ERROR) {
ngx_http_header_parse_error(r,
NGX_HTTP_PARSE_INVALID_CL_HEADER);
return NGX_HTTP_BAD_REQUEST;
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
}
r->state_handler = NULL;
return NGX_OK;
/* there was error while a header line parsing */
ngx_http_handler(r);
return;
} else if (rc != NGX_AGAIN) {
/* there was error while a header line parsing */
ngx_http_header_parse_error(r, rc);
return NGX_HTTP_BAD_REQUEST;
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
/* NGX_AGAIN: a header line parsing is still not complete */
@ -511,7 +565,8 @@ static void ngx_http_process_request_headers(ngx_event_t *rev)
if (offset == 0) {
ngx_http_header_parse_error(r,
NGX_HTTP_PARSE_TOO_LONG_HEADER);
return NGX_HTTP_BAD_REQUEST;
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
ngx_memcpy(r->header_in->start, r->header_name_start,
@ -526,216 +581,17 @@ static void ngx_http_process_request_headers(ngx_event_t *rev)
} else {
ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER);
return NGX_HTTP_BAD_REQUEST;
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return;
}
}
return NGX_AGAIN;
}
}
static int ngx_http_process_request_header_line(ngx_http_request_t *r)
{
int i;
ngx_table_elt_t *h;
ngx_test_null(h, ngx_push_table(r->headers_in.headers), NGX_ERROR);
h->key.len = r->header_name_end - r->header_name_start;
h->value.len = r->header_end - r->header_start;
/* if the large client headers are enabled then
we need to copy the header name and value */
if (ngx_http_large_client_header) {
ngx_test_null(h->key.data, ngx_palloc(r->pool, h->key.len + 1),
NGX_ERROR);
ngx_test_null(h->value.data, ngx_palloc(r->pool, h->value.len + 1),
NGX_ERROR);
ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
} else {
h->key.data = r->header_name_start;
h->key.data[h->key.len] = '\0';
h->value.data = r->header_start;
h->value.data[h->value.len] = '\0';
}
for (i = 0; headers_in[i].name.len != 0; i++) {
if (headers_in[i].name.len != h->key.len) {
continue;
}
if (ngx_strcasecmp(headers_in[i].name.data, h->key.data) == 0) {
*((ngx_table_elt_t **)
((char *) &r->headers_in + headers_in[i].offset)) = h;
}
}
ngx_log_debug(r->connection->log, "HTTP header: '%s: %s'" _
h->key.data _ h->value.data);
return NGX_OK;
}
int ngx_http_finalize_request(ngx_http_request_t *r, int error)
{
int rc, event;
ngx_msec_t timeout;
ngx_event_t *rev, *wev;
ngx_http_core_loc_conf_t *lcf;
rc = error;
if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
rev = r->connection->read;
if (rev->timer_set) {
ngx_del_timer(rev);
} else {
rev->timer_set = 1;
}
rc = ngx_http_special_response_handler(r, rc);
}
/* a handler has done its work completely */
if (rc == NGX_OK) {
if (r->keepalive != 0) {
return ngx_http_set_keepalive(r);
}
if (r->lingering_close) {
return ngx_http_set_lingering_close(r);
}
return ngx_http_close_request(r, 0);
}
/* NGX_AGAIN: a handler has done its work
but the transfer is still not completed */
wev = r->connection->write;
wev->event_handler = ngx_http_writer;
if (wev->delayed && wev->ready) {
return NGX_AGAIN;
}
lcf = (ngx_http_core_loc_conf_t *)
ngx_http_get_module_loc_conf(r->main ? r->main : r,
ngx_http_core_module_ctx);
ngx_add_timer(wev, lcf->send_timeout);
wev->timer_set = 1;
#if (USE_KQUEUE)
#if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */
wev->lowat = lcf->send_lowat;
#endif
if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) == NGX_ERROR) {
return ngx_http_close_request(r, 0);
}
return rc;
#else
/* aio, iocp, epoll */
if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) {
return rc;
}
#if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */
if (ngx_event_flags & NGX_HAVE_LOWAT_EVENT) {
wev->lowat = lcf->send_lowat;
}
#endif
/* kqueue */
if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) {
event = NGX_CLEAR_EVENT;
/* select, poll, /dev/poll */
} else {
event = NGX_LEVEL_EVENT;
}
if (ngx_add_event(wev, NGX_WRITE_EVENT, event) == NGX_ERROR) {
return ngx_http_close_request(r, 0);
}
return rc;
#endif /* USE_KQUEUE */
}
static int ngx_http_writer(ngx_event_t *wev)
{
int rc;
ngx_msec_t timeout;
ngx_connection_t *c;
ngx_http_request_t *r;
ngx_http_core_loc_conf_t *lcf;
c = (ngx_connection_t *) wev->data;
r = (ngx_http_request_t *) c->data;
rc = ngx_http_output_filter(r, NULL);
ngx_log_debug(c->log, "output filter in writer: %d" _ rc);
if (rc == NGX_AGAIN) {
lcf = (ngx_http_core_loc_conf_t *)
ngx_http_get_module_loc_conf(r->main ? r->main : r,
ngx_http_core_module_ctx);
if (wev->timer_set) {
ngx_del_timer(wev);
} else {
wev->timer_set = 1;
}
ngx_add_timer(wev, lcf->send_timeout);
return rc;
}
if (rc == NGX_ERROR)
return rc;
/* rc == NGX_OK */
ngx_log_debug(c->log, "http writer done");
if (r->keepalive != 0) {
return ngx_http_set_keepalive(r);
}
if (r->lingering_close) {
return ngx_http_set_lingering_close(r);
}
return ngx_http_close_request(r, 0);
}
static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
{
int event;
ssize_t n;
ngx_event_t *rev;
@ -762,16 +618,34 @@ static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
r->header_timeout_set = 1;
}
if (!rev->active) {
if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) {
/* kqueue */
event = NGX_CLEAR_EVENT;
} else {
/* select, poll, /dev/poll */
event = NGX_LEVEL_EVENT;
}
if (ngx_add_event(rev, NGX_READ_EVENT, event) == NGX_ERROR) {
ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
ngx_http_close_connection(r->connection);
return NGX_ERROR;
}
}
return NGX_AGAIN;
}
if (n == 0) {
ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
"client closed prematurely connection");
}
if (n == 0 || n == NGX_ERROR) {
ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
ngx_http_close_connection(c);
ngx_http_close_connection(r->connection);
return NGX_ERROR;
}
@ -781,6 +655,166 @@ static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
}
void ngx_http_finalize_request(ngx_http_request_t *r, int error)
{
int rc, event;
ngx_msec_t timeout;
ngx_event_t *rev, *wev;
rc = error;
if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
rev = r->connection->read;
if (rev->timer_set) {
ngx_del_timer(rev);
} else {
rev->timer_set = 1;
}
rc = ngx_http_special_response_handler(r, rc);
}
rev = r->connection->read;
if (rev->timer_set) {
ngx_del_timer(rev);
rev->timer_set = 0;
}
wev = r->connection->write;
if (wev->timer_set) {
ngx_del_timer(wev);
wev->timer_set = 0;
}
if (r->keepalive != 0) {
ngx_http_set_keepalive(r);
} else if (r->lingering_close) {
ngx_http_set_lingering_close(r);
} else {
ngx_http_close_request(r, 0);
ngx_http_close_connection(r->connection);
}
}
void ngx_http_set_write_handler(ngx_http_request_t *r)
{
int event;
ngx_event_t *wev;
ngx_http_core_loc_conf_t *lcf;
wev = r->connection->write;
wev->event_handler = ngx_http_writer;
if (wev->delayed && wev->ready) {
return;
}
lcf = (ngx_http_core_loc_conf_t *)
ngx_http_get_module_loc_conf(r->main ? r->main : r,
ngx_http_core_module_ctx);
ngx_add_timer(wev, lcf->send_timeout);
wev->timer_set = 1;
if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) {
/* aio, iocp, epoll */
return;
}
#if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */
if (ngx_event_flags & NGX_HAVE_LOWAT_EVENT) {
wev->lowat = lcf->send_lowat;
}
#endif
if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) {
/* kqueue */
event = NGX_CLEAR_EVENT;
} else {
/* select, poll, /dev/poll */
event = NGX_LEVEL_EVENT;
}
if (ngx_add_event(wev, NGX_WRITE_EVENT, event) == NGX_ERROR) {
ngx_http_close_request(r, 0);
ngx_http_close_connection(r->connection);
}
}
static void ngx_http_writer(ngx_event_t *wev)
{
int rc;
ngx_msec_t timeout;
ngx_event_t *rev;
ngx_connection_t *c;
ngx_http_request_t *r;
ngx_http_core_loc_conf_t *lcf;
c = (ngx_connection_t *) wev->data;
r = (ngx_http_request_t *) c->data;
rc = ngx_http_output_filter(r, NULL);
ngx_log_debug(c->log, "writer output filter: %d" _ rc);
if (rc == NGX_AGAIN) {
lcf = (ngx_http_core_loc_conf_t *)
ngx_http_get_module_loc_conf(r->main ? r->main : r,
ngx_http_core_module_ctx);
if (wev->timer_set) {
ngx_del_timer(wev);
} else {
wev->timer_set = 1;
}
ngx_add_timer(wev, lcf->send_timeout);
return;
}
if (rc == NGX_ERROR) {
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
/* rc == NGX_OK */
ngx_log_debug(c->log, "http writer done");
rev = r->connection->read;
if (rev->timer_set) {
ngx_del_timer(rev);
rev->timer_set = 0;
}
if (wev->timer_set) {
ngx_del_timer(wev);
wev->timer_set = 0;
}
if (r->keepalive != 0) {
ngx_http_set_keepalive(r);
}
if (r->lingering_close) {
ngx_http_set_lingering_close(r);
} else {
ngx_http_close_request(r, 0);
}
}
static int ngx_http_block_read(ngx_event_t *ev)
{
ngx_log_debug(ev->log, "http read blocked");
@ -805,6 +839,13 @@ static int ngx_http_block_read(ngx_event_t *ev)
}
/* STUB */
int ngx_http_discard_body(ngx_http_request_t *r)
{
return NGX_OK;
}
#if 0
/* TODO */
int ngx_http_discard_body(ngx_http_request_t *r)
{
@ -874,9 +915,10 @@ static int ngx_http_read_discarded_body(ngx_event_t *ev)
/* XXX: what if r->client_content_length == 0 ? */
return NGX_OK;
}
#endif
static int ngx_http_set_keepalive(ngx_http_request_t *r)
static void ngx_http_set_keepalive(ngx_http_request_t *r)
{
int len, blocked;
ngx_hunk_t *h;
@ -893,8 +935,10 @@ static int ngx_http_set_keepalive(ngx_http_request_t *r)
if (rev->blocked && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) == NGX_ERROR) {
return NGX_ERROR;
ngx_http_close_connection(c);
return;
}
blocked = 1;
rev->blocked = 0;
@ -922,7 +966,8 @@ static int ngx_http_set_keepalive(ngx_http_request_t *r)
c->pipeline = 1;
ctx->action = "reading client pipelined request line";
return ngx_http_init_request(rev);
ngx_http_init_request(rev);
return;
}
c->pipeline = 0;
@ -933,31 +978,20 @@ static int ngx_http_set_keepalive(ngx_http_request_t *r)
if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
return NGX_ERROR;
ngx_http_close_connection(c);
return;
}
}
ctx->action = "keepalive";
#if (HAVE_AIO_EVENT) /* aio, iocp */
if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) || blocked) {
return ngx_http_keepalive_handler(rev);
ngx_http_keepalive_handler(rev);
}
#else
if (blocked) {
return ngx_http_keepalive_handler(rev);
}
#endif
return NGX_OK;
}
static int ngx_http_keepalive_handler(ngx_event_t *rev)
static void ngx_http_keepalive_handler(ngx_event_t *rev)
{
ssize_t n;
ngx_connection_t *c;
@ -968,7 +1002,8 @@ static int ngx_http_keepalive_handler(ngx_event_t *rev)
ngx_log_debug(c->log, "http keepalive handler");
if (rev->timedout) {
return NGX_ERROR; /* to close connection */
ngx_http_close_connection(c);
return;
}
/* MSIE closes a keepalive connection with RST flag
@ -979,8 +1014,13 @@ static int ngx_http_keepalive_handler(ngx_event_t *rev)
n = ngx_event_recv(c, c->buffer->last, c->buffer->end - c->buffer->last);
rev->ignore_econnreset = 0;
if (n == NGX_AGAIN || n == NGX_ERROR) {
return n;
if (n == NGX_AGAIN) {
return;
}
if (n == NGX_ERROR) {
ngx_http_close_connection(c);
return;
}
lctx = (ngx_http_log_ctx_t *) rev->log->data;
@ -989,18 +1029,19 @@ static int ngx_http_keepalive_handler(ngx_event_t *rev)
if (n == 0) {
ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
"client %s closed keepalive connection", lctx->client);
return NGX_ERROR; /* to close connection */
ngx_http_close_connection(c);
return;
}
c->buffer->last += n;
rev->log->handler = ngx_http_log_error;
lctx->action = "reading client request line";
return ngx_http_init_request(rev);
ngx_http_init_request(rev);
}
static int ngx_http_set_lingering_close(ngx_http_request_t *r)
static void ngx_http_set_lingering_close(ngx_http_request_t *r)
{
ngx_event_t *rev;
ngx_connection_t *c;
@ -1013,7 +1054,7 @@ static int ngx_http_set_lingering_close(ngx_http_request_t *r)
ngx_http_get_module_loc_conf(r, ngx_http_core_module_ctx);
r->lingering_time = ngx_time() + lcf->lingering_time / 1000;
r->connection->read->event_handler = ngx_http_lingering_close_handler;
rev->event_handler = ngx_http_lingering_close_handler;
if (rev->timer_set) {
ngx_del_timer(rev);
@ -1025,46 +1066,36 @@ static int ngx_http_set_lingering_close(ngx_http_request_t *r)
if (rev->blocked && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) == NGX_ERROR) {
return ngx_http_close_request(r, 0);
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
rev->blocked = 0;
}
#if !(USE_KQUEUE)
if (c->write->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
if (ngx_del_event(c->write, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
return ngx_http_close_request(r, 0);
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
}
#endif
if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
ngx_shutdown_socket_n " failed");
return ngx_http_close_request(r, 0);
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
#if (USE_KQUEUE)
if (rev->ready) {
return ngx_http_lingering_close_handler(rev);
}
#else
if (rev->ready || (ngx_event_flags & NGX_HAVE_AIO_EVENT)) {
return ngx_http_lingering_close_handler(rev);
ngx_http_lingering_close_handler(rev);
}
#endif
return NGX_OK;
}
static int ngx_http_lingering_close_handler(ngx_event_t *rev)
static void ngx_http_lingering_close_handler(ngx_event_t *rev)
{
ssize_t n;
ngx_msec_t timer;
@ -1078,12 +1109,16 @@ static int ngx_http_lingering_close_handler(ngx_event_t *rev)
ngx_log_debug(c->log, "http lingering close handler");
if (rev->timedout) {
return ngx_http_close_request(r, 0);
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
timer = r->lingering_time - ngx_time();
if (timer <= 0) {
return ngx_http_close_request(r, 0);
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
lcf = (ngx_http_core_loc_conf_t *)
@ -1100,9 +1135,13 @@ static int ngx_http_lingering_close_handler(ngx_event_t *rev)
r->discarded_buffer = r->header_in->last;
} else {
ngx_test_null(r->discarded_buffer,
ngx_palloc(c->pool, lcf->discarded_buffer_size),
ngx_http_close_request(r, 0));
r->discarded_buffer = ngx_palloc(c->pool,
lcf->discarded_buffer_size);
if (r->discarded_buffer) {
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
}
}
@ -1112,7 +1151,9 @@ static int ngx_http_lingering_close_handler(ngx_event_t *rev)
ngx_log_debug(c->log, "lingering read: %d" _ n);
if (n == NGX_ERROR || n == 0) {
return ngx_http_close_request(r, 0);
ngx_http_close_request(r, 0);
ngx_http_close_connection(c);
return;
}
} while (rev->ready);
@ -1129,15 +1170,48 @@ static int ngx_http_lingering_close_handler(ngx_event_t *rev)
}
ngx_add_timer(rev, timer);
return NGX_OK;
return;
}
static void ngx_http_close_connection(ngx_connection_t *c)
void ngx_http_close_request(ngx_http_request_t *r, int error)
{
ngx_http_log_ctx_t *ctx;
ngx_log_debug(r->connection->log, "close http request");
if (r->pool == NULL) {
ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
"http already closed");
return;
}
if (error) {
r->headers_out.status = error;
}
ngx_http_log_handler(r);
if (r->file.fd != NGX_INVALID_FILE) {
if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
ngx_close_file_n " \"%s\" failed", r->file.name.data);
}
}
/* ctx->url was allocated from r->pool */
ctx = (ngx_http_log_ctx_t *) r->connection->log->data;
ctx->url = NULL;
ngx_destroy_pool(r->pool);
}
void ngx_http_close_connection(ngx_connection_t *c)
{
ngx_log_debug(c->log, "close connection: %d" _ c->fd);
if (c->fd == -1) {
if (c->pool == NULL) {
ngx_log_error(NGX_LOG_ALERT, c->log, 0, "connection already closed");
return;
}
@ -1168,13 +1242,6 @@ static void ngx_http_close_connection(ngx_connection_t *c)
c->fd = -1;
ngx_destroy_pool(c->pool);
return;
}
static int ngx_http_close_connection0(ngx_event_t *ev)
{
return ngx_event_close_connection(ev);
}