Mercurial > hg > nginx
changeset 69:e43f406e4525
nginx-0.0.1-2003-03-20-19:09:44 import
line wrap: on
line diff
--- a/src/core/ngx_core.h +++ b/src/core/ngx_core.h @@ -6,7 +6,7 @@ #define NGX_ERROR -1 #define NGX_DONE NGX_ERROR #define NGX_AGAIN -2 -#define NGX_WAITING -3 +#define NGX_BUSY -3 #define NGX_DECLINED -4 #define NGX_ALERT -5
--- a/src/core/ngx_string.c +++ b/src/core/ngx_string.c @@ -1,5 +1,6 @@ #include <ngx_config.h> +#include <ngx_core.h> #include <ngx_string.h> @@ -19,3 +20,72 @@ char *ngx_cpystrn(char *dst, char *src, return dst; } + + +int ngx_atoi(char *line, size_t n) +{ + int value; + + for (value = 0; n--; line++) { + if (*line < '0' || *line > '9') { + return NGX_ERROR; + } + + value = value * 10 + (*line - '0'); + } + + return value; +} + + +#if 0 +char *ngx_psprintf(ngx_pool_t *p, const char *fmt, ...) +{ + va_list args; + + va_start(args, fmt); + + while (*fmt) { + switch(*fmt++) { + case '%': + switch(*fmt++) { + case 's': + s = va_arg(args, char *); + n += ngx_strlen(s); + break; + + default: + n++; + } + default: + n++; + } + } + + str = ngx_palloc(p, n); + + va_start(args, fmt); + + for (i = 0; i < n; i++) { + switch(*fmt++) { + case '%': + switch(*fmt++) { + case 's': + s = va_arg(args, char *); + while (str[i++] = s); + break; + + default: + n++; + } + default: + str[i] = *fmt; + } + } + + len += ngx_vsnprintf(errstr + len, sizeof(errstr) - len - 1, fmt, args); + + va_end(args); + +} +#endif
--- a/src/core/ngx_string.h +++ b/src/core/ngx_string.h @@ -49,6 +49,7 @@ typedef struct { #define ngx_cpymem(dst, src, n) memcpy(dst, src, n) + n char *ngx_cpystrn(char *dst, char *src, size_t n); +int ngx_atoi(char *line, size_t n); #endif /* _NGX_STRING_H_INCLUDED_ */
--- a/src/event/modules/ngx_devpoll_module.c +++ b/src/event/modules/ngx_devpoll_module.c @@ -236,6 +236,7 @@ int ngx_devpoll_process_events(ngx_log_t if ((int) timer != INFTIM) { gettimeofday(&tv, NULL); delta = tv.tv_sec * 1000 + tv.tv_usec / 1000 - delta; + ngx_event_expire_timers(delta); } else { if (events == 0) { @@ -305,9 +306,5 @@ int ngx_devpoll_process_events(ngx_log_t } } - if ((int) timer != INFTIM) { - ngx_event_expire_timers(delta); - } - return NGX_OK; }
--- a/src/event/modules/ngx_iocp_module.c +++ b/src/event/modules/ngx_iocp_module.c @@ -110,6 +110,7 @@ int ngx_iocp_process_events(ngx_log_t *l if (timer != INFINITE) { delta = ngx_msec() - delta; + ngx_event_expire_timers(delta); } if (ovlp) { @@ -118,6 +119,7 @@ int ngx_iocp_process_events(ngx_log_t *l ngx_log_debug(log, "iocp ev: %08x" _ ev); if (ev == e) { + /* it's not AcceptEx() completion */ ev->ready = 1; ev->available = bytes; } @@ -129,9 +131,5 @@ ngx_log_debug(log, "iocp ev: %08x" _ ev- } } - if (timer != INFINITE) { - ngx_event_expire_timers(delta); - } - return NGX_OK; }
--- a/src/event/modules/ngx_kqueue_module.c +++ b/src/event/modules/ngx_kqueue_module.c @@ -110,6 +110,13 @@ int ngx_kqueue_add_event(ngx_event_t *ev ev->active = 1; ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1: 0; + /* The event addition or change should be always passed to a kernel + because there can be case when event was passed to a kernel then + added again to the change_list and then deleted from the change_list + by ngx_kqueue_del_event() so the first event still remains in a kernel */ + +#if 0 + if (nchanges > 0 && ev->index < nchanges && change_list[ev->index].udata == ev) @@ -118,12 +125,17 @@ int ngx_kqueue_add_event(ngx_event_t *ev ngx_connection_t *c = (ngx_connection_t *) ev->data; ngx_log_debug(ev->log, "kqueue add event: %d: ft:%d" _ c->fd _ event); #endif + + /* if the event is still not passed to a kernel we change it */ + change_list[ev->index].filter = event; change_list[ev->index].flags = flags; return NGX_OK; } +#endif + return ngx_kqueue_set_event(ev, event, EV_ADD | flags); } @@ -142,6 +154,9 @@ int ngx_kqueue_del_event(ngx_event_t *ev ngx_connection_t *c = (ngx_connection_t *) ev->data; ngx_log_debug(ev->log, "kqueue del event: %d: ft:%d" _ c->fd _ event); #endif + + /* if the event is still not passed to a kernel we will not pass it */ + if (ev->index < --nchanges) { e = (ngx_event_t *) change_list[nchanges].udata; change_list[ev->index] = change_list[nchanges]; @@ -151,6 +166,9 @@ int ngx_kqueue_del_event(ngx_event_t *ev return NGX_OK; } + /* when a socket is closed kqueue automatically deletes its filters + so we do not need to delete a event explicity before a socket closing */ + if (flags & NGX_CLOSE_EVENT) { return NGX_OK; } @@ -257,6 +275,11 @@ int ngx_kqueue_process_events(ngx_log_t gettimeofday(&tv, NULL); delta = tv.tv_sec * 1000 + tv.tv_usec / 1000 - delta; + /* Expired timers must be deleted before the events processing + because the new timers can be added during the processing */ + + ngx_event_expire_timers(delta); + } else { if (events == 0) { ngx_log_error(NGX_LOG_ALERT, log, 0, @@ -295,6 +318,9 @@ int ngx_kqueue_process_events(ngx_log_t ev = (ngx_event_t *) event_list[i].udata; + /* It's a stale event from a socket + that was just closed in this iteration */ + if (!ev->active) { continue; } @@ -303,6 +329,29 @@ int ngx_kqueue_process_events(ngx_log_t case EVFILT_READ: case EVFILT_WRITE: + + if (ev->first) { + if (nchanges > 0 + && ev->index < nchanges + && change_list[ev->index].udata == ev) { + + /* It's a stale event from a socket that was just closed + in this iteration and during processing another socket + was opened with the same number by accept() or socket() + and its event has been added the event to the change_list + but has not been passed to a kernel. Nevertheless + there's small chance that ngx_kqueue_set_event() has + flushed the new event if the change_list was filled up. + In this very rare case we would get EAGAIN while + a reading or a writing */ + + continue; + + } else { + ev->first = 0; + } + } + ev->available = event_list[i].data; if (event_list[i].flags & EV_EOF) { @@ -332,9 +381,5 @@ int ngx_kqueue_process_events(ngx_log_t } } - if (timer) { - ngx_event_expire_timers(delta); - } - return NGX_OK; }
--- a/src/event/modules/ngx_poll_module.c +++ b/src/event/modules/ngx_poll_module.c @@ -175,6 +175,7 @@ int ngx_poll_process_events(ngx_log_t *l if ((int) timer != INFTIM) { delta = ngx_msec() - delta; + ngx_event_expire_timers(delta); } else { if (ready == 0) { @@ -259,9 +260,5 @@ int ngx_poll_process_events(ngx_log_t *l ngx_log_error(NGX_LOG_ALERT, log, 0, "poll ready != events"); } - if ((int) timer != INFTIM) { - ngx_event_expire_timers(delta); - } - return NGX_OK; }
--- a/src/event/modules/ngx_select_module.c +++ b/src/event/modules/ngx_select_module.c @@ -243,6 +243,7 @@ int ngx_select_process_events(ngx_log_t if (timer) { delta = ngx_msec() - delta; + ngx_event_expire_timers(delta); } else { if (ready == 0) { @@ -312,9 +313,5 @@ int ngx_select_process_events(ngx_log_t ngx_log_error(NGX_LOG_ALERT, log, 0, "select ready != events"); } - if (timer) { - ngx_event_expire_timers(delta); - } - return NGX_OK; }
--- a/src/event/ngx_event.h +++ b/src/event/ngx_event.h @@ -63,6 +63,7 @@ struct ngx_event_s { #endif unsigned write:1; + unsigned first:1; unsigned active:1; unsigned ready:1; unsigned timedout:1; @@ -179,8 +180,8 @@ typedef struct { #define NGX_USE_LEVEL_EVENT 0x00010000 -/* Event filter is deleted before closing file. Has no meaning - for select, poll, epoll. +/* Event filter is deleted before closing file. + Has no meaning for select, poll, epoll. kqueue: kqueue deletes event filters for file that closed so we need only to delete filters in user-level batch array @@ -193,16 +194,24 @@ typedef struct { #define NGX_READ_EVENT EVFILT_READ #define NGX_WRITE_EVENT EVFILT_WRITE +#define NGX_ENABLE_EVENT EV_ENABLE +#define NGX_DISABLE_EVENT EV_DISABLE + +/* NGX_CLOSE_EVENT is the module flag and it would not go into a kernel + so we need to choose the value that would not interfere with any existent + and future flags. kqueue has such values - EV_FLAG1, EV_EOF and EV_ERROR. + They are reserved and cleared on a kernel entrance */ +#undef NGX_CLOSE_EVENT +#define NGX_CLOSE_EVENT EV_FLAG1 + #define NGX_LEVEL_EVENT 0 #define NGX_ONESHOT_EVENT EV_ONESHOT +#define NGX_CLEAR_EVENT EV_CLEAR #ifndef HAVE_CLEAR_EVENT #define HAVE_CLEAR_EVENT 1 #endif -#if (HAVE_CLEAR_EVENT) -#define NGX_CLEAR_EVENT EV_CLEAR -#endif #elif (HAVE_POLL) || (HAVE_DEVPOLL)
--- a/src/event/ngx_event_accept.c +++ b/src/event/ngx_event_accept.c @@ -117,6 +117,7 @@ int ngx_event_accept(ngx_event_t *ev) c->fd = s; c->unexpected_eof = 1; wev->write = 1; + rev->first = wev->first = 1; #if (HAVE_AIO_EVENT) if (!(ngx_event_flags & NGX_HAVE_AIO_EVENT)) {
--- a/src/event/ngx_event_acceptex.c +++ b/src/event/ngx_event_acceptex.c @@ -104,6 +104,7 @@ int ngx_event_post_acceptex(ngx_listen_t c->unexpected_eof = 1; wev->write = 1; + rev->first = wev->first = 1; c->handler = ls->handler; rev->event_handler = ngx_event_acceptex;
--- a/src/event/ngx_event_recv.c +++ b/src/event/ngx_event_recv.c @@ -8,18 +8,13 @@ ssize_t ngx_event_recv_core(ngx_connection_t *c, char *buf, size_t size) { - int n; - ngx_err_t err; - ngx_event_t *ev; + ssize_t n; + ngx_err_t err; + ngx_event_t *ev; ev = c->read; - if (ev->timedout) { - ngx_set_socket_errno(NGX_ETIMEDOUT); - ngx_log_error(NGX_LOG_ERR, c->log, NGX_ETIMEDOUT, "recv() failed"); - return NGX_ERROR; - } - +/* DEBUG */ #if (HAVE_KQUEUE) if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) { ngx_log_debug(c->log, "ngx_event_recv: eof:%d, avail:%d, err:%d" _ @@ -30,54 +25,32 @@ ssize_t ngx_event_recv_core(ngx_connecti #if (USE_KQUEUE) if (ev->eof && ev->available == 0) { - if (ev->error) { - ngx_set_socket_errno(ev->error); - if (ev->error == NGX_ECONNRESET && ev->ignore_econnreset) { - return 0; - } - - ngx_log_error(NGX_LOG_ERR, c->log, ev->error, - "recv() failed"); - return NGX_ERROR; + if (ev->error == 0) { + return 0; } - return 0; - } - -#elif (HAVE_KQUEUE) - - if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) { - if (ev->eof && ev->available == 0) { - if (ev->error) { - ngx_set_socket_errno(ev->error); + ngx_set_socket_errno(ev->error); + err = ev->error; + n = -1; - if (ev->error == NGX_ECONNRESET && ev->ignore_econnreset) { - return 0; - } + } else { + n = ngx_recv(c->fd, buf, size, 0); - ngx_log_error(NGX_LOG_ERR, c->log, ev->error, - "recv() failed"); - return NGX_ERROR; - } - - return 0; + if (n == -1) { + err = ngx_socket_errno; } } -#endif - - n = ngx_recv(c->fd, buf, size, 0); + if (n == -1) { + ev->ready = 0; - if (n == -1) { - err = ngx_socket_errno; - - if (ev->error == NGX_ECONNRESET && ev->ignore_econnreset) { + if (err == NGX_ECONNRESET && ev->ignore_econnreset) { return 0; } if (err == NGX_EAGAIN) { - ngx_log_error(NGX_LOG_INFO, c->log, err, "recv() returns EAGAIN"); + ngx_log_error(NGX_LOG_INFO, c->log, err, "recv() returned EAGAIN"); return NGX_AGAIN; } @@ -85,17 +58,90 @@ ssize_t ngx_event_recv_core(ngx_connecti return NGX_ERROR; } -#if (USE_KQUEUE) + ev->available -= n; + if (ev->available == 0) { + ev->ready = 0; + } - ev->available -= n; + return n; #elif (HAVE_KQUEUE) - if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) { - ev->available -= n; + if ((ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) + && ev->eof && ev->available == 0) { + + if (ev->error == 0) { + return 0; + } + + ngx_set_socket_errno(ev->error); + err = ev->error; + n = -1; + + } else { + n = ngx_recv(c->fd, buf, size, 0); +ngx_log_debug(c->log, "ngx_event_recv: read:%d:%d" _ n _ size); + + if (n == -1) { + err = ngx_socket_errno; + } + } + + if (n == -1) { + ev->ready = 0; + + if (err == NGX_ECONNRESET && ev->ignore_econnreset) { + return 0; + } + + if (err == NGX_EAGAIN) { + ngx_log_error(NGX_LOG_INFO, c->log, err, "recv() returned EAGAIN"); + return NGX_AGAIN; + } + + ngx_log_error(NGX_LOG_ERR, c->log, err, "recv() failed"); + return NGX_ERROR; } -#endif + if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) { + ev->available -= n; + if (ev->available == 0) { + ev->ready = 0; + } + + } else if ((size_t) n < size) { + ev->ready = 0; + } return n; + +#else /* not kqueue */ + + n = ngx_recv(c->fd, buf, size, 0); + + if (n == -1) { + err = ngx_socket_errno; + + ev->ready = 0; + + if (err == NGX_ECONNRESET && ev->ignore_econnreset) { + return 0; + } + + if (err == NGX_EAGAIN) { + ngx_log_error(NGX_LOG_INFO, c->log, err, "recv() returned EAGAIN"); + return NGX_AGAIN; + } + + ngx_log_error(NGX_LOG_ERR, c->log, err, "recv() failed"); + return NGX_ERROR; + } + + if ((size_t) n < size) { + ev->ready = 0; + } + + return n; + +#endif }
--- a/src/http/modules/ngx_http_event_proxy_handler.c +++ b/src/http/modules/ngx_http_event_proxy_handler.c @@ -14,47 +14,8 @@ #include <ngx_http_event_proxy_handler.h> -static ngx_command_t ngx_http_proxy_commands[] = { - - {ngx_string("proxy_large_header"), - NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, - ngx_conf_set_flag_slot, - NGX_HTTP_LOC_CONF_OFFSET, - offsetof(ngx_http_proxy_loc_conf_t, large_header)}, - - {ngx_null_string, 0, NULL, 0, 0} -}; - - -static ngx_http_module_t ngx_http_proxy_module_ctx = { - NGX_HTTP_MODULE, - - NULL, /* create server config */ - NULL, /* init server config */ - NULL, /* create location config */ - NULL, /* merge location config */ - - NULL, /* translate handler */ - - NULL, /* output header filter */ - NULL, /* next output header filter */ - NULL, /* output body filter */ - NULL /* next output body filter */ -}; - - -ngx_module_t ngx_http_proxy_module = { - 0, /* module index */ - &ngx_http_proxy_module_ctx, /* module context */ - ngx_http_proxy_commands, /* module directives */ - NGX_HTTP_MODULE_TYPE, /* module type */ - NULL /* init module */ -}; - - - static ngx_chain_t *ngx_http_proxy_create_request(ngx_http_request_t *r); -static int ngx_http_proxy_connect(ngx_http_request_t *r, +static int ngx_http_proxy_connect(ngx_http_proxy_ctx_t *p, struct sockaddr_in *addr, char *addr_text); static int ngx_http_proxy_send_request(ngx_event_t *ev); @@ -70,7 +31,48 @@ static int ngx_http_proxy_write_to_clien static int ngx_read_http_proxy_status_line(ngx_http_proxy_ctx_t *ctx); -static char conn_close[] = "Connection: close" CRLF; +static ngx_command_t ngx_http_proxy_commands[] = { + + {ngx_string("proxy_large_header"), + NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, + ngx_conf_set_flag_slot, + NGX_HTTP_LOC_CONF_OFFSET, + offsetof(ngx_http_proxy_loc_conf_t, large_header)}, + + {ngx_null_string, 0, NULL, 0, 0} +}; + + +static ngx_http_module_t ngx_http_proxy_module_ctx = { + NULL, /* create server config */ + NULL, /* init server config */ + + NULL, /* create location config */ + NULL, /* merge location config */ + + NULL /* init filters */ +}; + + +ngx_module_t ngx_http_proxy_module = { + 0, /* module index */ + &ngx_http_proxy_module_ctx, /* module context */ + ngx_http_proxy_commands, /* module directives */ + NGX_HTTP_MODULE_TYPE, /* module type */ + NULL /* init module */ +}; + + +static ngx_str_t http_methods[] = { + ngx_string("GET "), + ngx_string("HEAD "), + ngx_string("POST ") +}; + + +static char http_version[] = " HTTP/1.0" CRLF; +static char host_header[] = "Host: "; +static char conn_close_header[] = "Connection: close" CRLF; /* AF_INET only */ @@ -78,32 +80,57 @@ static char conn_close[] = "Connection: int ngx_http_proxy_handler(ngx_http_request_t *r) { - struct sockaddr_in addr; - ngx_chain_t *chain; - ngx_http_proxy_ctx_t *p; + struct sockaddr_in addr; + ngx_chain_t *chain; + ngx_http_proxy_ctx_t *p; + ngx_http_log_ctx_t *hcx; + ngx_http_proxy_log_ctx_t *lcx; p = (ngx_http_proxy_ctx_t *) - ngx_http_get_module_ctx(r, ngx_http_proxy_module_ctx); + ngx_http_get_module_ctx(r, ngx_http_proxy_module); if (p == NULL) { - ngx_http_create_ctx(r, p, ngx_http_proxy_module_ctx, + ngx_http_create_ctx(r, p, ngx_http_proxy_module, sizeof(ngx_http_proxy_ctx_t), NGX_HTTP_INTERNAL_SERVER_ERROR); } + p->request = r; + + ngx_test_null(p->log, ngx_palloc(r->pool, sizeof(ngx_log_t)), + NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_memcpy(p->log, r->connection->log, sizeof(ngx_log_t)); + ngx_test_null(lcx, ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_log_ctx_t)), + NGX_HTTP_INTERNAL_SERVER_ERROR); + + p->log->data = lcx; + hcx = r->connection->log->data; + lcx->client = hcx->client; + + /* + if (!resolved) { + return ngx_dns_resolve(name, handler, p, r->pool, p->log); + } + */ + chain = ngx_http_proxy_create_request(r); if (chain == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } + /* TODO: duplicate hunks and chain if there is backend farm */ p->out = chain; ngx_memzero(&addr, sizeof(struct sockaddr_in)); addr.sin_family = AF_INET; +#if 0 addr.sin_addr.s_addr = inet_addr("127.0.0.1"); +#else + addr.sin_addr.s_addr = inet_addr("192.168.10.2"); +#endif addr.sin_port = htons(9000); - return ngx_http_proxy_connect(r, &addr, "connecting to 127.0.0.1:9000"); + return ngx_http_proxy_connect(p, &addr, "connecting to 127.0.0.1:9000"); } @@ -125,7 +152,7 @@ static ngx_chain_t *ngx_http_proxy_creat /* TODO: Host length */ /* "Connection: close\r\n" */ - len += sizeof(conn_close) - 1; + len += sizeof(conn_close_header) - 1; header = (ngx_table_elt_t *) r->headers_in.headers->elts; for (i = 0; i < r->headers_in.headers->nelts; i++) { @@ -146,16 +173,54 @@ static ngx_chain_t *ngx_http_proxy_creat ngx_test_null(hunk, ngx_create_temp_hunk(r->pool, len, 0, 0), NULL); ngx_add_hunk_to_chain(chain, hunk, r->pool, NULL); - /* STUB: "method p->url HTTP/1.0" */ +#if 0 + + /* the request line */ + + ngx_memcpy(hunk->last, http_methods[p->method - 1].data, + http_methods[p->method - 1].len); + hunk->last += http_methods[p->method - 1].len; + + ngx_memcpy(hunk->last, p->uri_start.data, p->uri_start.len); + hunk->last += p->uri_start.len; + + ngx_memcpy(hunk->last, p->uri_rest.data, p->uri_rest.len); + hunk->last += p->uri_rest.len; + + if (r->args) { + *(hunk->last++) = '?'; + ngx_memcpy(hunk->last, r->uri_args.data, r->uri_args.len); + hunk->last += r->uri_args.len; + } + + ngx_memcpy(hunk->last, http_version, sizeof(http_version) - 1); + hunk->last += sizeof(http_version) - 1; + + /* the 'Host' header */ + + ngx_memcpy(hunk->last, host_header, sizeof(host_header) - 1); + hunk->last += sizeof(host_header) - 1; + + ngx_memcpy(hunk->last, p->host.data, p->host.len); + hunk->last += p->host.len; + + *(hunk->last++) = CR; *(hunk->last++) = LF; + + /* the 'Connection: close' header */ + + ngx_memcpy(hunk->last, conn_close_header, sizeof(conn_close_header) - 1); + hunk->last += sizeof(conn_close_header) - 1; + +#else ngx_memcpy(hunk->last, r->request_line.data, r->request_line.len); hunk->last += r->request_line.len; *(hunk->last++) = CR; *(hunk->last++) = LF; - /* TODO: Host header */ + ngx_memcpy(hunk->last, conn_close_header, sizeof(conn_close_header) - 1); + hunk->last += sizeof(conn_close_header) - 1; - ngx_memcpy(hunk->last, conn_close, sizeof(conn_close) - 1); - hunk->last += sizeof(conn_close) - 1; +#endif for (i = 0; i < r->headers_in.headers->nelts; i++) { if (&header[i] == r->headers_in.host) { @@ -190,7 +255,197 @@ static ngx_chain_t *ngx_http_proxy_creat } -static int ngx_http_proxy_connect(ngx_http_request_t *r, +#if 0 + +client_read() + if (!ev->write) { + if error close upstream ? + else block it + } + + +static int ngx_http_proxy_process_upstream(ngx_event_t *ev) +{ + again = 0; + + do { + + if (p->state_write_upstream_handler == + ngx_http_proxy_connect_to_upstream) { + if (!get_cached_connection()) + get_next_upstream(p); + } + + if (ev->write) { + + /* ngx_http_proxy_connect_to_upstream() + ngx_http_proxy_send_request() */ + + rc = p->state_write_upstream_handler(p); + + } else { + + /* ngx_http_proxy_read_response() */ + + rc = p->state_read_upstream_handler(p); + } + + if (rc == NGX_BUSY || rc == NGX_AGAIN || rc == NGX_OK) { + return rc; + } + + if (rc == NGX_ERROR) { + return ngx_http_proxy_finalize_request(p, + NGX_HTTP_INTERNAL_SERVER_ERROR); + } + + /* This NGX_HTTP_INTERNAL_SERVER_ERROR is sent by an upstream */ + + if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT + || (rc == NGX_HTTP_INTERNAL_SERVER_ERROR && lcf->retry_500) + { + ngx_http_close_connection(ev); + + if (p->upstream->amount > 1) { + /* Here is the race condition on SMP machine + when the upstreams are shared between threads or processes + but it's not serious */ + p->upstream->upstreams[p->cur_upstream].fails++; + } + + p->upstreams--; + + if (p->upstreams == 0) { + return ngx_http_proxy_finalize_request(p, rc); + } + + p->cur_upstream++; + if (p->cur_upstream > p->upstream->amount) { + p->cur_upstream = 0; + } + + p->state_read_upstream_handler = ignore; + p->state_write_upstream_handler = + ngx_http_proxy_connect_to_upstream; + again = 1; + } + + if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { + ??? + } + + } while (again); + + return NGX_BUSY; +} + + +static int ngx_http_proxy_connect(ngx_http_proxy_ctx_t *p) +{ + ngx_socket_t s; + ngx_connection_t *c; + ngx_http_log_ctx_t *lcx; + + lcx = p->log->data; + lcx->action = "connecting to an upstream"; + lcx->upstream = p->upstream.data; + p->log->handler = ngx_http_proxy_log_error; + + s = ngx_socket(AF_INET, SOCK_STREAM, IPPROTO_IP, 0); + if (s == -1) { + ngx_log_error(NGX_LOG_ALERT, p->log, ngx_socket_errno, + ngx_socket_n " failed"); + return NGX_ERROR; + } + + if (lcf->rcvbuf) { + if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, + (const void *) &rcvbuf, sizeof(int)) == -1) { + ngx_log_error(NGX_LOG_ALERT, p->log, ngx_socket_errno, + "setsockopt(SO_RCVBUF) failed"); + + if (ngx_close_socket(s) == -1) { + ngx_log_error(NGX_LOG_ALERT, p->log, ngx_socket_errno, + ngx_close_socket_n " failed"); + } + + return NGX_ERROR; + } + } + + if (ngx_nonblocking(s) == -1) { + ngx_log_error(NGX_LOG_ALERT, p->log, ngx_socket_errno, + ngx_nonblocking_n " failed"); + + if (ngx_close_socket(s) == -1) { + ngx_log_error(NGX_LOG_ALERT, p->log, ngx_socket_errno, + ngx_close_socket_n " failed"); + } + + return NGX_ERROR; + } + + rc = connect(s, (struct sockaddr *) p->addr, sizeof(struct sockaddr_in)); + + if (rc == -1) { + err = ngx_socket_errno; + if (err != NGX_EINPROGRESS) { + ngx_log_error(NGX_LOG_CRIT, p->log, err, "connect() failed"); + + if (ngx_close_socket(s) == -1) { + ngx_log_error(NGX_LOG_ALERT, p->log, ngx_socket_errno, + ngx_close_socket_n " failed"); + } + + return NGX_HTTP_BAD_GATEWAY; + } + } + + c = &ngx_connections[s]; + rev = &ngx_read_events[s]; + wev = &ngx_write_events[s]; + + ngx_memzero(rev, sizeof(ngx_event_t)); + ngx_memzero(wev, sizeof(ngx_event_t)); + ngx_memzero(c, sizeof(ngx_connection_t)); + + rev->index = wev->index = NGX_INVALID_INDEX; + + rev->data = wev->data = c; + c->read = rev; + c->write = wev; + + rev->first = wev->first = 1; + + c->data = p->request; + p->connection = c; + + c->fd = s; + + rev->log = wev->log = c->log = p->log; + + ngx_test_null(c->pool, ngx_create_pool(lcf->conn_pool_size, p->log), + NGX_ERROR); + +} + +#if 0 +connect_upstream() + get next upstream + init connect to upstream + if error return error + if ok send_request(); + if inprogress p->state_handler = send_request, return busy + +send_request() + if timeout inc fail counter + p->state_handler = connect_upstream, return 504 +#endif + +#endif + + +static int ngx_http_proxy_connect(ngx_http_proxy_ctx_t *p, struct sockaddr_in *addr, char *addr_text) { @@ -201,7 +456,7 @@ static int ngx_http_proxy_connect(ngx_ht ngx_connection_t *c, *pc; ngx_http_log_ctx_t *ctx; - c = r->connection; + c = p->request->connection; ctx = c->log->data; ctx->action = addr_text; @@ -253,7 +508,7 @@ static int ngx_http_proxy_connect(ngx_ht ngx_close_socket_n " failed"); } - return NGX_HTTP_INTERNAL_SERVER_ERROR; + return NGX_HTTP_BAD_GATEWAY; } } @@ -265,16 +520,21 @@ static int ngx_http_proxy_connect(ngx_ht ngx_memzero(wev, sizeof(ngx_event_t)); ngx_memzero(pc, sizeof(ngx_connection_t)); + rev->index = wev->index = NGX_INVALID_INDEX; + rev->data = wev->data = pc; pc->read = rev; pc->write = wev; - pc->data = r; + pc->data = p->request;; + p->connection = pc; pc->fd = s; pc->servers = c->servers; - pc->log = rev->log = wev->log = c->log; + ngx_test_null(pc->log, ngx_palloc(c->pool, sizeof(ngx_log_t)), NGX_OK); + ngx_memcpy(pc->log, c->log, sizeof(ngx_log_t)); + rev->log = wev->log = pc->log; ngx_test_null(pc->pool, ngx_create_pool(/* STUB */ 1024 /**/, pc->log), @@ -282,6 +542,8 @@ static int ngx_http_proxy_connect(ngx_ht wev->event_handler = ngx_http_proxy_send_request; rev->event_handler = ngx_http_proxy_init_response; + rev->close_handler = wev->close_handler = ngx_event_close_connection; + #if (USE_KQUEUE) @@ -314,18 +576,25 @@ static int ngx_http_proxy_connect(ngx_ht /* TODO: aio, iocp */ - /* The connection is in a progress */ - if (rc == -1) { - /* TODO: oneshot */ - if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_ONESHOT_EVENT) != NGX_OK) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } + /* The connection has been established */ + if (rc == 0) { + wev->write = 1; + wev->ready = 1; + + return ngx_http_proxy_send_request(wev); } - wev->write = 1; - wev->ready = 1; + /* The connection is in a progress */ - return ngx_http_proxy_send_request(wev); + /* TODO: oneshot */ + if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_ONESHOT_EVENT) != NGX_OK) { + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + wev->timer_set = 1; + ngx_add_timer(wev, /* STUB: lcf->connect_timeout */ 10000); + + return NGX_BUSY; } @@ -339,7 +608,11 @@ static int ngx_http_proxy_send_request(n c = (ngx_connection_t *) ev->data; r = (ngx_http_request_t *) c->data; p = (ngx_http_proxy_ctx_t *) - ngx_http_get_module_ctx(r, ngx_http_proxy_module_ctx); + ngx_http_get_module_ctx(r, ngx_http_proxy_module); + + if (ev->timedout) { + return ngx_http_proxy_error(r, p, NGX_HTTP_GATEWAY_TIME_OUT); + } chain = ngx_write_chain(c, p->out, 0); if (chain == (ngx_chain_t *) -1) { @@ -348,7 +621,7 @@ static int ngx_http_proxy_send_request(n p->out = chain; - return NGX_WAITING; + return NGX_BUSY; } @@ -368,7 +641,7 @@ static int ngx_http_proxy_init_response( } p = (ngx_http_proxy_ctx_t *) - ngx_http_get_module_ctx(r, ngx_http_proxy_module_ctx); + ngx_http_get_module_ctx(r, ngx_http_proxy_module); ngx_test_null(p->header_in, ngx_create_temp_hunk(r->pool, @@ -407,7 +680,7 @@ static int ngx_http_proxy_read_response_ c = (ngx_connection_t *) ev->data; r = (ngx_http_request_t *) c->data; p = (ngx_http_proxy_ctx_t *) - ngx_http_get_module_ctx(r, ngx_http_proxy_module); + ngx_http_get_module_ctx(r, ngx_http_proxy_module); if (ev->timedout) { return ngx_http_proxy_error(r, p, NGX_HTTP_GATEWAY_TIME_OUT); @@ -516,7 +789,7 @@ static int ngx_http_proxy_read_response_ return ngx_http_proxy_read_response_body(ev); } - return NGX_WAITING; + return NGX_BUSY; } @@ -575,7 +848,7 @@ static int ngx_http_proxy_read_response_ c = (ngx_connection_t *) ev->data; r = (ngx_http_request_t *) c->data; p = (ngx_http_proxy_ctx_t *) - ngx_http_get_module_ctx(r, ngx_http_proxy_module_ctx); + ngx_http_get_module_ctx(r, ngx_http_proxy_module); if (p->hunks.nelts > 0) { h = ((ngx_hunk_t **) p->hunks.elts)[p->hunks.nelts - 1]; @@ -631,7 +904,7 @@ static int ngx_http_proxy_read_response_ ngx_log_debug(c->log, "READ:%d" _ n); if (n == NGX_AGAIN) { - return NGX_WAITING; + return NGX_BUSY; } if (n == NGX_ERROR) { @@ -660,7 +933,7 @@ static int ngx_http_proxy_read_response_ return ngx_http_proxy_write_to_client(c->write); } - /* STUB */ return NGX_WAITING; + /* STUB */ return NGX_BUSY; } @@ -675,7 +948,7 @@ static int ngx_http_proxy_write_to_clien c = (ngx_connection_t *) ev->data; r = (ngx_http_request_t *) c->data; p = (ngx_http_proxy_ctx_t *) - ngx_http_get_module_ctx(r, ngx_http_proxy_module_ctx); + ngx_http_get_module_ctx(r, ngx_http_proxy_module); do { h = ((ngx_hunk_t **) p->hunks.elts)[p->hunk_n]; @@ -706,6 +979,17 @@ static int ngx_http_proxy_error(ngx_http } +static size_t ngx_http_proxy_log_error(void *data, char *buf, size_t len) +{ + ngx_http_proxy_log_ctx_t *lcx = (ngx_http_proxy_log_ctx_t *) data; + + return ngx_snprintf(buf, len, + " while %s, upstream: %s, client: %s, URL: %s", + lcx->action, lcx->upstream, lcx->client, lcx->url); +} + + + static int ngx_read_http_proxy_status_line(ngx_http_proxy_ctx_t *ctx) { char ch; @@ -864,3 +1148,106 @@ static int ngx_read_http_proxy_status_li return NGX_AGAIN; } } + + +#if 0 + +static char *ngx_http_proxy_set_pass(ngx_conf_t *cf, ngx_command_t *cmd, + char *conf) +{ + ngx_http_proxy_conf_t *lcf = (ngx_http_proxy_conf_t *) conf; + char *url; + ngx_str_t *value; + ngx_http_proxy_pass_t *pass; + + value = (ngx_str_t *) cf->args->elts; + url = value[1].data; + + ngx_test_null(pass, ngx_push_array(lcf->proxy_pass), NGX_CONF_ERROR); + + if (ngx_strncasecmp(url, "http://", 7) == 0) { + "invalid prefix in URL %s", url; + } + + err = ngx_http_proxy_parse_upstream(url, u); + + if (err) { + "%s %s", err, url; + } + + h = ngx_gethostbyname(cmd->pool, u->host); + + return NULL; +} + +#endif + + +static char *ngx_http_proxy_parse_upstream(ngx_str_t *url, + ngx_http_proxy_upstream_url_t *u) +{ + size_t i; + + if (url->data[0] == ':' || url->data[0] == '/') { + return "invalid upstream URL"; + } + + u->host.data = url->data; + u->host_header.data = url->data; + + for (i = 1; i < url->len; i++) { + if (url->data[i] == ':') { + u->port_name.data = &url->data[i]; + u->host.len = i; + } + + if (url->data[i] == '/') { + u->uri.data = &url->data[i]; + u->uri.len = url->len - i; + u->host_header.len = i; + + if (u->host.len == 0) { + u->host.len = i; + } + + if (u->port_name.data == NULL) { + return NULL; + } + + u->port_name.len = &url->data[i] - u->port_name.data; + + if (u->port_name.len > 0) { + u->port = ngx_atoi(u->port_name.data, u->port_name.len); + if (u->port > 0) { + return NULL; + } + } + + return "invalid port in upstream URL"; + } + } + + if (u->host.len == 0) { + u->host.len = i; + } + + u->host_header.len = i; + + u->uri.data = "/"; + u->uri.len = 1; + + if (u->port_name.data == NULL) { + return NULL; + } + + u->port_name.len = &url->data[i] - u->port_name.data; + + if (u->port_name.len > 0) { + u->port = ngx_atoi(u->port_name.data, u->port_name.len); + if (u->port > 0) { + return NULL; + } + } + + return "invalid port in upstream URL"; +}
--- a/src/http/modules/ngx_http_event_proxy_handler.h +++ b/src/http/modules/ngx_http_event_proxy_handler.h @@ -20,6 +20,41 @@ typedef struct { } ngx_http_proxy_loc_conf_t; +typedef struct { + ngx_str_t host; + ngx_str_t uri; + ngx_str_t host_header; + ngx_str_t port_name; + int port; +} ngx_http_proxy_upstream_url_t; + + +typedef struct { + struct sockaddr_in; + ngx_str_t name; + time_t access; + int fails; +} ngx_http_proxy_upstream_t; + + +typedef struct { + int amount; + ngx_http_proxy_upstream_t *upstreams; +} ngx_http_proxy_upstream_farm_t; + + +#if 0 +/* location /one/ { proxy_pass http://localhost:9000/two/; } */ + +typedef struct { + /* "/one/" */ + /* "http://localhost:9000/two/" */ + /* "/two/" */ + *upstream_farm; +} ngx_http_proxy_pass_t; +#endif + + typedef struct ngx_http_proxy_ctx_s ngx_http_proxy_ctx_t; struct ngx_http_proxy_ctx_s { @@ -30,9 +65,16 @@ struct ngx_http_proxy_ctx_s { int hunk_n; - ngx_connection_t *connection; + ngx_connection_t *connection; + ngx_http_request_t *request; ngx_http_proxy_headers_in_t *headers_in; + ngx_http_proxy_upstream_farm_t *upstream; + int cur_upstream; + int upstreams; + + ngx_log_t *log; + ngx_hunk_t *header_in; int state; int status; @@ -43,6 +85,14 @@ struct ngx_http_proxy_ctx_s { }; +typedef struct { + char *action; + char *upstream; + char *client; + char *url; +} ngx_http_proxy_log_ctx_t; + + extern ngx_module_t ngx_http_proxy_module;
--- a/src/http/modules/ngx_http_index_handler.c +++ b/src/http/modules/ngx_http_index_handler.c @@ -35,20 +35,13 @@ static ngx_command_t ngx_http_index_comm ngx_http_module_t ngx_http_index_module_ctx = { - NGX_HTTP_MODULE, - NULL, /* create server config */ NULL, /* init server config */ + ngx_http_index_create_conf, /* create location config */ ngx_http_index_merge_conf, /* merge location config */ - NULL, /* translate handler */ - - NULL, /* output header filter */ - NULL, /* next output header filter */ - NULL, /* output body filter */ - NULL, /* next output body filter */ - + NULL /* init filters */ }; @@ -288,18 +281,18 @@ static char *ngx_http_index_merge_conf(n static char *ngx_http_index_set_index(ngx_conf_t *cf, ngx_command_t *cmd, char *conf) { - ngx_http_index_conf_t *icf = (ngx_http_index_conf_t *) conf; + ngx_http_index_conf_t *lcf = (ngx_http_index_conf_t *) conf; int i; ngx_str_t *index, *value; value = (ngx_str_t *) cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { - ngx_test_null(index, ngx_push_array(icf->indices), NGX_CONF_ERROR); + ngx_test_null(index, ngx_push_array(lcf->indices), NGX_CONF_ERROR); index->len = value[i].len; index->data = value[i].data; - if (icf->max_index_len < index->len) { - icf->max_index_len = index->len; + if (lcf->max_index_len < index->len) { + lcf->max_index_len = index->len; } }
--- a/src/http/modules/ngx_http_log_handler.c +++ b/src/http/modules/ngx_http_log_handler.c @@ -5,6 +5,7 @@ #include <ngx_alloc.h> #include <ngx_time.h> #include <ngx_http.h> +#include <ngx_http_config.h> ngx_http_module_t ngx_http_log_module;
--- a/src/http/modules/ngx_http_static_handler.c +++ b/src/http/modules/ngx_http_static_handler.c @@ -5,23 +5,11 @@ #include <ngx_file.h> #include <ngx_hunk.h> #include <ngx_http.h> +#include <ngx_http_config.h> #include <ngx_http_output_filter.h> -ngx_http_module_t ngx_http_static_module; - -#if 0 -/* STUB */ -static ngx_http_static_ctx_t module_ctx; - -void ngx_http_static_init() -{ - module_ctx.out = NULL; - - ngx_http_static_module.ctx = &module_ctx; -} -/* */ -#endif +ngx_http_module_t ngx_http_static_module; int ngx_http_static_handler(ngx_http_request_t *r)
--- a/src/http/ngx_http.c +++ b/src/http/ngx_http.c @@ -28,6 +28,7 @@ int ngx_http_large_client_header = 1; int ngx_http_url_in_error_log = 1; +ngx_array_t ngx_http_translate_handlers; ngx_array_t ngx_http_index_handlers; @@ -61,13 +62,12 @@ ngx_module_t ngx_http_module = { static void ngx_http_init_filters(ngx_pool_t *pool, ngx_module_t **modules) { - int i; - ngx_http_module_t *module; - int (*ohf)(ngx_http_request_t *r); - int (*obf)(ngx_http_request_t *r, ngx_chain_t *ch); + int i; + ngx_http_module_t *module; + ngx_http_conf_filter_t cf; - ohf = NULL; - obf = NULL; + cf.output_header_filter = NULL; + cf.output_body_filter = NULL; for (i = 0; modules[i]; i++) { if (modules[i]->type != NGX_HTTP_MODULE_TYPE) { @@ -76,18 +76,12 @@ static void ngx_http_init_filters(ngx_po module = (ngx_http_module_t *) modules[i]->ctx; - if (module->output_header_filter) { - module->next_output_header_filter = ohf; - ohf = module->output_header_filter; - } - - if (module->output_body_filter) { - module->next_output_body_filter = obf; - obf = module->output_body_filter; + if (module->init_filters) { + module->init_filters(pool, &cf); } } - ngx_http_top_header_filter = ohf; + ngx_http_top_header_filter = cf.output_header_filter; } @@ -119,10 +113,6 @@ static char *ngx_http_block(ngx_conf_t * continue; } - /* STUB */ - module = (ngx_http_module_t *) ngx_modules[i]->ctx; - module->index = ngx_http_max_module; - ngx_modules[i]->index = ngx_http_max_module++; } @@ -139,7 +129,7 @@ static char *ngx_http_block(ngx_conf_t * module = (ngx_http_module_t *) ngx_modules[i]->ctx; if (module->create_loc_conf) { - ngx_test_null(ctx->loc_conf[module->index], + ngx_test_null(ctx->loc_conf[ngx_modules[i]->index], module->create_loc_conf(cf->pool), NGX_CONF_ERROR); } @@ -173,6 +163,9 @@ static char *ngx_http_block(ngx_conf_t * /**/ #endif + ngx_init_array(ngx_http_translate_handlers, + cf->pool, 10, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR); + ngx_init_array(ngx_http_index_handlers, cf->pool, 3, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR);
--- a/src/http/ngx_http.h +++ b/src/http/ngx_http.h @@ -38,14 +38,18 @@ #define NGX_HTTP_OK 200 + #define NGX_HTTP_SPECIAL_RESPONSE 300 #define NGX_HTTP_MOVED_PERMANENTLY 301 #define NGX_HTTP_MOVED_TEMPORARILY 302 #define NGX_HTTP_NOT_MODIFIED 304 + #define NGX_HTTP_BAD_REQUEST 400 #define NGX_HTTP_FORBIDDEN 403 #define NGX_HTTP_NOT_FOUND 404 +#define NGX_HTTP_REQUEST_TIME_OUT 408 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414 + #define NGX_HTTP_INTERNAL_SERVER_ERROR 500 #define NGX_HTTP_NOT_IMPLEMENTED 501 #define NGX_HTTP_BAD_GATEWAY 502 @@ -59,9 +63,8 @@ typedef struct { - size_t len; - char *data; - int offset; + ngx_str_t name; + int offset; } ngx_http_header_t; @@ -71,8 +74,9 @@ typedef struct { ngx_table_elt_t *host; ngx_table_elt_t *connection; ngx_table_elt_t *if_modified_since; + ngx_table_elt_t *accept_encoding; + ngx_table_elt_t *user_agent; - ngx_table_elt_t *accept_encoding; ngx_table_t *headers; } ngx_http_headers_in_t; @@ -101,34 +105,34 @@ typedef struct { typedef struct ngx_http_request_s ngx_http_request_t; struct ngx_http_request_s { - ngx_file_t file; + ngx_connection_t *connection; - void **ctx; - void **srv_conf; - void **loc_conf; + void **ctx; + void **srv_conf; + void **loc_conf; - ngx_pool_t *pool; - ngx_hunk_t *header_in; + ngx_file_t file; + + ngx_pool_t *pool; + ngx_hunk_t *header_in; ngx_http_headers_in_t headers_in; ngx_http_headers_out_t headers_out; int (*handler)(ngx_http_request_t *r); - int method; - time_t lingering_time; - int http_version; - int http_major; - int http_minor; + int method; + int http_version; + int http_major; + int http_minor; - ngx_str_t request_line; - ngx_str_t uri; - ngx_str_t exten; - ngx_http_request_t *main; - - ngx_connection_t *connection; + ngx_str_t request_line; + ngx_str_t uri; + ngx_str_t args; + ngx_str_t exten; + ngx_http_request_t *main; u_int in_addr; @@ -192,32 +196,6 @@ typedef int (*ngx_http_output_body_filte (ngx_http_request_t *r, ngx_chain_t *chain); - -typedef struct { - int index; - - void *(*create_srv_conf)(ngx_pool_t *p); - char *(*init_srv_conf)(ngx_pool_t *p, void *conf); - void *(*create_loc_conf)(ngx_pool_t *p); - char *(*merge_loc_conf)(ngx_pool_t *p, void *prev, void *conf); - - int (*translate_handler)(ngx_http_request_t *r); - - int (*output_header_filter) (ngx_http_request_t *r); - int (*next_output_header_filter) (ngx_http_request_t *r); - - int (*output_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch); - int (*next_output_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch); -} ngx_http_module_t; - - -#define NGX_HTTP_MODULE 0x80000000 - -#define NGX_HTTP_MODULE_TYPE 0x50545448 /* "HTTP" */ - - -#define ngx_http_get_module_srv_conf(r, module) r->srv_conf[module.index] -#define ngx_http_get_module_loc_conf(r, module) r->loc_conf[module.index] #define ngx_http_get_module_ctx(r, module) r->ctx[module.index] #define ngx_http_create_ctx(r, cx, module, size, error) \ @@ -243,7 +221,7 @@ int ngx_http_handler(ngx_http_request_t int ngx_http_send_header(ngx_http_request_t *r); -int ngx_http_special_response(ngx_http_request_t *r, int error); +int ngx_http_special_response_handler(ngx_http_request_t *r, int error); time_t ngx_http_parse_time(char *value, size_t len); @@ -269,12 +247,10 @@ extern int ngx_http_discarded_buffer_si extern int ngx_http_url_in_error_log; +extern ngx_array_t ngx_http_translate_handlers; extern ngx_array_t ngx_http_index_handlers; -extern ngx_http_module_t *ngx_http_modules[]; - - /* STUB */ int ngx_http_log_handler(ngx_http_request_t *r); /**/
--- a/src/http/ngx_http_config.h +++ b/src/http/ngx_http_config.h @@ -12,14 +12,39 @@ typedef struct { } ngx_http_conf_ctx_t; +typedef struct { + int (*output_header_filter) (ngx_http_request_t *r); + int (*output_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch); +} ngx_http_conf_filter_t; + + +typedef struct { + void *(*create_srv_conf)(ngx_pool_t *p); + char *(*init_srv_conf)(ngx_pool_t *p, void *conf); + + void *(*create_loc_conf)(ngx_pool_t *p); + char *(*merge_loc_conf)(ngx_pool_t *p, void *prev, void *conf); + + void (*init_filters) (ngx_pool_t *p, ngx_http_conf_filter_t *cf); +} ngx_http_module_t; + + +#define NGX_HTTP_MODULE_TYPE 0x50545448 /* "HTTP" */ + + #define NGX_HTTP_MAIN_CONF 0x1000000 #define NGX_HTTP_SRV_CONF 0x2000000 #define NGX_HTTP_LOC_CONF 0x6000000 + #define NGX_HTTP_SRV_CONF_OFFSET offsetof(ngx_http_conf_ctx_t, srv_conf) #define NGX_HTTP_LOC_CONF_OFFSET offsetof(ngx_http_conf_ctx_t, loc_conf) +#define ngx_http_get_module_srv_conf(r, module) r->srv_conf[module.index] +#define ngx_http_get_module_loc_conf(r, module) r->loc_conf[module.index] + + int ngx_http_config_modules(ngx_pool_t *pool, ngx_module_t **modules); @@ -28,8 +53,5 @@ extern ngx_module_t ngx_http_module; extern int (*ngx_http_top_header_filter) (ngx_http_request_t *r); -extern void **ngx_srv_conf; -extern void **ngx_loc_conf; - #endif /* _NGX_HTTP_CONFIG_H_INCLUDED_ */
--- a/src/http/ngx_http_core_module.c +++ b/src/http/ngx_http_core_module.c @@ -19,12 +19,15 @@ int ngx_http_proxy_handler(ngx_http_requ static int ngx_http_core_index_handler(ngx_http_request_t *r); +static int ngx_http_core_init(ngx_pool_t *pool); + +static void *ngx_http_core_create_srv_conf(ngx_pool_t *pool); +static char *ngx_http_core_init_srv_conf(ngx_pool_t *pool, void *conf); +static void *ngx_http_core_create_loc_conf(ngx_pool_t *pool); + static char *ngx_server_block(ngx_conf_t *cf, ngx_command_t *cmd, char *dummy); static char *ngx_location_block(ngx_conf_t *cf, ngx_command_t *cmd, char *dummy); -static void *ngx_http_core_create_srv_conf(ngx_pool_t *pool); -static char *ngx_http_core_init_srv_conf(ngx_pool_t *pool, void *conf); -static void *ngx_http_core_create_loc_conf(ngx_pool_t *pool); static char *ngx_set_listen(ngx_conf_t *cf, ngx_command_t *cmd, char *conf); @@ -108,24 +111,18 @@ static ngx_command_t ngx_http_core_comm NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, lingering_timeout)}, - {ngx_string(""), 0, NULL, 0, 0} + {ngx_null_string, 0, NULL, 0, 0} }; ngx_http_module_t ngx_http_core_module_ctx = { - NGX_HTTP_MODULE, - ngx_http_core_create_srv_conf, /* create server config */ ngx_http_core_init_srv_conf, /* init server config */ + ngx_http_core_create_loc_conf, /* create location config */ NULL, /* merge location config */ - ngx_http_core_translate_handler, /* translate handler */ - - NULL, /* output header filter */ - NULL, /* next output header filter */ - NULL, /* output body filter */ - NULL /* next output body filter */ + NULL /* init filters */ }; @@ -134,13 +131,14 @@ ngx_module_t ngx_http_core_module = { &ngx_http_core_module_ctx, /* module context */ ngx_http_core_commands, /* module directives */ NGX_HTTP_MODULE_TYPE, /* module type */ - NULL /* init module */ + ngx_http_core_init /* init module */ }; int ngx_http_handler(ngx_http_request_t *r) { int rc, a, n, i; + ngx_http_handler_pt *h; ngx_http_module_t *module; ngx_http_conf_ctx_t *ctx; ngx_http_in_port_t *in_port; @@ -149,8 +147,8 @@ int ngx_http_handler(ngx_http_request_t r->connection->unexpected_eof = 0; + r->keepalive = 1; r->lingering_close = 1; - r->keepalive = 0; #if 1 r->filter = NGX_HTTP_FILTER_NEED_IN_MEMORY; @@ -213,34 +211,25 @@ ngx_log_debug(r->connection->log, "srv_c ngx_log_debug(r->connection->log, "loc_conf: %0x" _ r->loc_conf); /* run translation phase */ - for (i = 0; ngx_modules[i]; i++) { - if (ngx_modules[i]->type != NGX_HTTP_MODULE_TYPE) { + + h = (ngx_http_handler_pt *) ngx_http_translate_handlers.elts; + for (i = 0; i < ngx_http_translate_handlers.nelts; i++) { + rc = h[i](r); + + if (rc == NGX_DECLINED) { continue; } - module = (ngx_http_module_t *) ngx_modules[i]->ctx; - - if (module->translate_handler == NULL) { - continue; - } - - rc = module->translate_handler(r); if (rc == NGX_OK) { break; } if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { - return ngx_http_special_response(r, rc); + return rc; } } - rc = r->handler(r); - - if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { - return ngx_http_special_response(r, rc); - } - - return rc; + return r->handler(r); } @@ -252,27 +241,27 @@ int ngx_http_core_translate_handler(ngx_ ngx_table_elt_t *h; ngx_http_server_name_t *s_name; ngx_http_core_srv_conf_t *scf; - ngx_http_core_loc_conf_t **lcf, *loc_conf; + ngx_http_core_loc_conf_t *lcf, **plcf; scf = (ngx_http_core_srv_conf_t *) - ngx_http_get_module_srv_conf(r, ngx_http_core_module_ctx); + ngx_http_get_module_srv_conf(r, ngx_http_core_module); /* find location config */ - lcf = (ngx_http_core_loc_conf_t **) scf->locations.elts; + plcf = (ngx_http_core_loc_conf_t **) scf->locations.elts; for (i = 0; i < scf->locations.nelts; i++) { -ngx_log_debug(r->connection->log, "trans: %s" _ lcf[i]->name.data); - if (r->uri.len < lcf[i]->name.len) { +ngx_log_debug(r->connection->log, "trans: %s" _ plcf[i]->name.data); + if (r->uri.len < plcf[i]->name.len) { continue; } - rc = ngx_strncmp(r->uri.data, lcf[i]->name.data, lcf[i]->name.len); + rc = ngx_strncmp(r->uri.data, plcf[i]->name.data, plcf[i]->name.len); if (rc < 0) { break; } if (rc == 0) { - r->loc_conf = lcf[i]->loc_conf; + r->loc_conf = plcf[i]->loc_conf; } } @@ -286,10 +275,10 @@ ngx_log_debug(r->connection->log, "trans return NGX_OK; } - loc_conf = (ngx_http_core_loc_conf_t *) - ngx_http_get_module_loc_conf(r, ngx_http_core_module_ctx); + lcf = (ngx_http_core_loc_conf_t *) + ngx_http_get_module_loc_conf(r, ngx_http_core_module); -ngx_log_debug(r->connection->log, "doc_root: %08x" _ &loc_conf->doc_root); +ngx_log_debug(r->connection->log, "doc_root: %08x" _ &lcf->doc_root); s_name = (ngx_http_server_name_t *) scf->server_names.elts; @@ -314,14 +303,14 @@ ngx_log_debug(r->connection->log, "doc_r port_len = (r->port != 80) ? r->port_name.len : 0; /* "+ 7" is "http://" */ - if (loc_conf->doc_root.len > 7 + s_name[0].name.len + port_len) { - len = loc_conf->doc_root.len; + if (lcf->doc_root.len > 7 + s_name[0].name.len + port_len) { + len = lcf->doc_root.len; f_offset = 0; l_offset = len - (7 + s_name[0].name.len + port_len); } else { len = 7 + s_name[0].name.len + port_len; - f_offset = len - loc_conf->doc_root.len; + f_offset = len - lcf->doc_root.len; l_offset = 0; } @@ -334,8 +323,8 @@ ngx_log_debug(r->connection->log, "doc_r r->file.name.data = buf + f_offset; location = buf + l_offset; - last = ngx_cpystrn(ngx_cpystrn(r->file.name.data, loc_conf->doc_root.data, - loc_conf->doc_root.len + 1), + last = ngx_cpystrn(ngx_cpystrn(r->file.name.data, lcf->doc_root.data, + lcf->doc_root.len + 1), r->uri.data, r->uri.len + 1); r->file.name.len = last - r->file.name.data; @@ -344,9 +333,9 @@ ngx_log_debug(r->connection->log, "HTTP #if (WIN9X) - /* There is no way to open file or directory in Win9X with - one syscall: Win9X has not FILE_FLAG_BACKUP_SEMANTICS flag. - so we need to check its type before opening */ + /* There is no way to open a file or a directory in Win9X with + one syscall: Win9X has no FILE_FLAG_BACKUP_SEMANTICS flag. + so we need to check its type before the opening */ r->file.info.dwFileAttributes = GetFileAttributes(r->file.name.data); if (r->file.info.dwFileAttributes == INVALID_FILE_ATTRIBUTES) { @@ -451,7 +440,7 @@ ngx_log_debug(r->connection->log, "HTTP return NGX_HTTP_MOVED_PERMANENTLY; } - /* TODO: r->handler = loc_conf->default_handler; */ + /* TODO: r->handler = lcf->default_handler; */ /* STUB */ r->handler = ngx_http_static_handler; return NGX_OK; @@ -503,7 +492,7 @@ int ngx_http_redirect(ngx_http_request_t /* log request */ - return ngx_http_close_request(r); + return ngx_http_close_request(r, 0); } @@ -514,17 +503,20 @@ int ngx_http_error(ngx_http_request_t *r /* log request */ - ngx_http_special_response(r, error); - return ngx_http_close_request(r); + 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 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); @@ -573,14 +565,26 @@ int ngx_http_internal_redirect(ngx_http_ } +static int ngx_http_core_init(ngx_pool_t *pool) +{ + ngx_http_handler_pt *h; + + ngx_test_null(h, ngx_push_array(&ngx_http_translate_handlers), NGX_ERROR); + + *h = ngx_http_core_translate_handler; + + return NGX_OK; +} + + static char *ngx_server_block(ngx_conf_t *cf, ngx_command_t *cmd, char *dummy) { - int i, j; - char *rv; - ngx_http_module_t *module; - ngx_http_conf_ctx_t *ctx, *prev; - ngx_http_core_srv_conf_t *scf; - ngx_http_core_loc_conf_t **lcf; + int i, j; + char *rv; + ngx_http_module_t *module; + ngx_http_conf_ctx_t *ctx, *prev; + ngx_http_core_srv_conf_t *scf; + ngx_http_core_loc_conf_t **plcf; ngx_test_null(ctx, ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)), @@ -604,13 +608,13 @@ static char *ngx_server_block(ngx_conf_t module = (ngx_http_module_t *) ngx_modules[i]->ctx; if (module->create_srv_conf) { - ngx_test_null(ctx->srv_conf[module->index], + ngx_test_null(ctx->srv_conf[ngx_modules[i]->index], module->create_srv_conf(cf->pool), NGX_CONF_ERROR); } if (module->create_loc_conf) { - ngx_test_null(ctx->loc_conf[module->index], + ngx_test_null(ctx->loc_conf[ngx_modules[i]->index], module->create_loc_conf(cf->pool), NGX_CONF_ERROR); } @@ -625,10 +629,10 @@ static char *ngx_server_block(ngx_conf_t return rv; - scf = ctx->srv_conf[ngx_http_core_module_ctx.index]; + scf = ctx->srv_conf[ngx_http_core_module.index]; scf->ctx = ctx; - lcf = (ngx_http_core_loc_conf_t **)scf->locations.elts; + plcf = (ngx_http_core_loc_conf_t **)scf->locations.elts; for (i = 0; ngx_modules[i]; i++) { if (ngx_modules[i]->type != NGX_HTTP_MODULE_TYPE) { @@ -639,7 +643,7 @@ static char *ngx_server_block(ngx_conf_t if (module->init_srv_conf) { if (module->init_srv_conf(cf->pool, - ctx->srv_conf[module->index]) + ctx->srv_conf[ngx_modules[i]->index]) == NGX_CONF_ERROR) { return NGX_CONF_ERROR; } @@ -647,16 +651,16 @@ static char *ngx_server_block(ngx_conf_t if (module->merge_loc_conf) { if (module->merge_loc_conf(cf->pool, - prev->loc_conf[module->index], - ctx->loc_conf[module->index]) + prev->loc_conf[ngx_modules[i]->index], + ctx->loc_conf[ngx_modules[i]->index]) == NGX_CONF_ERROR) { return NGX_CONF_ERROR; } for (j = 0; j < scf->locations.nelts; j++) { if (module->merge_loc_conf(cf->pool, - ctx->loc_conf[module->index], - lcf[j]->loc_conf[module->index]) + ctx->loc_conf[ngx_modules[i]->index], + plcf[j]->loc_conf[ngx_modules[i]->index]) == NGX_CONF_ERROR) { return NGX_CONF_ERROR; } @@ -676,7 +680,7 @@ static char *ngx_location_block(ngx_conf ngx_http_module_t *module; ngx_http_conf_ctx_t *ctx, *prev; ngx_http_core_srv_conf_t *scf; - ngx_http_core_loc_conf_t *lcf, **loc; + ngx_http_core_loc_conf_t *lcf, **plcf; ngx_test_null(ctx, ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)), @@ -697,7 +701,7 @@ static char *ngx_location_block(ngx_conf module = (ngx_http_module_t *) ngx_modules[i]->ctx; if (module->create_loc_conf) { - ngx_test_null(ctx->loc_conf[module->index], + ngx_test_null(ctx->loc_conf[ngx_modules[i]->index], module->create_loc_conf(cf->pool), NGX_CONF_ERROR); } @@ -712,8 +716,8 @@ static char *ngx_location_block(ngx_conf scf = (ngx_http_core_srv_conf_t *) ctx->srv_conf[ngx_http_core_module.index]; - ngx_test_null(loc, ngx_push_array(&scf->locations), NGX_CONF_ERROR); - *loc = lcf; + ngx_test_null(plcf, ngx_push_array(&scf->locations), NGX_CONF_ERROR); + *plcf = lcf; cf->ctx = ctx; rv = ngx_conf_parse(cf, NULL); @@ -789,7 +793,7 @@ static void *ngx_http_core_create_loc_co lcf->doc_root.len = 4; lcf->doc_root.data = "html"; - lcf->send_timeout = 10; + lcf->send_timeout = 10000; lcf->discarded_buffer_size = 1500; lcf->lingering_time = 30000; lcf->lingering_timeout = 5000;
--- a/src/http/ngx_http_core_module.h +++ b/src/http/ngx_http_core_module.h @@ -57,12 +57,13 @@ typedef struct { void **loc_conf; /* pointer to modules loc_conf, used in translation handler */ - ngx_str_t doc_root; /* 'root' */ + ngx_str_t doc_root; /* root */ - time_t send_timeout; /* 'send_timeout' */ - size_t discarded_buffer_size; /* 'discarded_buffer_size */ - time_t lingering_time; /* 'lingering_time */ - ngx_msec_t lingering_timeout; /* 'lingering_timeout */ + time_t send_timeout; /* send_timeout */ + size_t send_lowat; /* send_lowa */ + size_t discarded_buffer_size; /* discarded_buffer_size */ + time_t lingering_time; /* lingering_time */ + ngx_msec_t lingering_timeout; /* lingering_timeout */ } ngx_http_core_loc_conf_t; @@ -87,7 +88,9 @@ int ngx_http_core_translate_handler(ngx_ 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_close_request(ngx_http_request_t *r); + +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_ */
--- a/src/http/ngx_http_event.c +++ b/src/http/ngx_http_event.c @@ -19,13 +19,11 @@ static int ngx_http_init_request(ngx_event_t *ev); -static int ngx_http_process_request_header(ngx_event_t *ev); - +static int ngx_http_process_request(ngx_event_t *ev); static int ngx_http_process_request_line(ngx_http_request_t *r); static int ngx_http_process_request_headers(ngx_http_request_t *r); static int ngx_http_process_request_header_line(ngx_http_request_t *r); - -static int ngx_http_event_request_handler(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); @@ -36,8 +34,7 @@ static int ngx_http_set_lingering_close( static int ngx_http_lingering_close_handler(ngx_event_t *ev); static int ngx_http_close_connection(ngx_event_t *ev); -static int ngx_http_header_parse_error(ngx_http_request_t *r, - int parse_err, int err); +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); @@ -56,26 +53,26 @@ static char *header_errors[] = { static ngx_http_header_t headers_in[] = { - { 4, "Host", offsetof(ngx_http_headers_in_t, host) }, - { 10, "Connection", offsetof(ngx_http_headers_in_t, connection) }, - { 17, "If-Modified-Since", - offsetof(ngx_http_headers_in_t,if_modified_since) }, + { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) }, + { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) }, + { ngx_string("If-Modified-Since"), + offsetof(ngx_http_headers_in_t,if_modified_since) }, - { 10, "User-Agent", offsetof(ngx_http_headers_in_t, user_agent) }, + { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) }, - { 0, NULL, 0 } + { ngx_null_string, 0 } }; int ngx_http_init_connection(ngx_connection_t *c) { - ngx_event_t *ev; + ngx_event_t *rev; ngx_http_log_ctx_t *ctx; - ev = c->read; - ev->event_handler = ngx_http_init_request; + rev = c->read; + rev->event_handler = ngx_http_init_request; - ev->close_handler = ngx_http_close_connection; + rev->close_handler = ngx_http_close_connection; c->write->close_handler = ngx_http_close_connection; ngx_test_null(c->addr_text.data, ngx_palloc(c->pool, c->addr_text_max_len), @@ -97,52 +94,48 @@ int ngx_http_init_connection(ngx_connect #if (HAVE_DEFERRED_ACCEPT) - if (ev->ready) { - return ngx_http_init_request(ev); + if (rev->ready) { + return ngx_http_init_request(rev); } #endif - ngx_add_timer(ev, c->post_accept_timeout); - ev->timer_set = 1; + ngx_add_timer(rev, c->post_accept_timeout); + rev->timer_set = 1; #if (USE_KQUEUE) - return ngx_add_event(ev, NGX_READ_EVENT, NGX_CLEAR_EVENT); + return ngx_add_event(rev, NGX_READ_EVENT, NGX_CLEAR_EVENT); #else -#if (HAVE_CLEAR_EVENT) /* kqueue */ + /* kqueue */ if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { - return ngx_add_event(ev, NGX_READ_EVENT, NGX_CLEAR_EVENT); + return ngx_add_event(rev, NGX_READ_EVENT, NGX_CLEAR_EVENT); } -#endif - -#if (HAVE_EDGE_EVENT) /* epoll */ || (HAVE_AIO_EVENT) /* aio, iocp */ + /* aio, iocp, epoll */ - if (ngx_event_flags & (NGX_HAVE_EDGE_EVENT|NGX_HAVE_AIO_EVENT)) { - return ngx_http_init_request(ev); + if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) { + return ngx_http_init_request(rev); } -#endif - /* select, poll, /dev/poll */ - return ngx_add_event(ev, NGX_READ_EVENT, NGX_LEVEL_EVENT); + return ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT); #endif /* USE_KQUEUE */ } -static int ngx_http_init_request(ngx_event_t *ev) +static int ngx_http_init_request(ngx_event_t *rev) { ngx_connection_t *c; ngx_http_request_t *r; ngx_http_conf_ctx_t *ctx; - c = (ngx_connection_t *) ev->data; + c = (ngx_connection_t *) rev->data; c->sent = 0; ngx_test_null(r, ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)), @@ -165,12 +158,12 @@ static int ngx_http_init_request(ngx_eve r->pipeline = c->pipeline; r->header_in = c->buffer; - ngx_test_null(r->pool, ngx_create_pool(ngx_http_request_pool_size, ev->log), + ngx_test_null(r->pool, ngx_create_pool(ngx_http_request_pool_size, c->log), NGX_ERROR); ngx_test_null(r->ctx, ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module), - ngx_http_close_request(r)); + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR)); ctx = (ngx_http_conf_ctx_t *) c->ctx; r->srv_conf = ctx->srv_conf; @@ -180,36 +173,34 @@ static int ngx_http_init_request(ngx_eve r->headers_out.content_length = -1; r->headers_out.last_modified_time = -1; - ev->event_handler = ngx_http_process_request_header; + rev->event_handler = ngx_http_process_request; r->state_handler = ngx_http_process_request_line; - return ngx_http_process_request_header(ev); + return ngx_http_process_request(rev); } -static int ngx_http_process_request_header(ngx_event_t *ev) +static int ngx_http_process_request(ngx_event_t *rev) { - int n, rc, again; + int n, rc; ngx_connection_t *c; ngx_http_request_t *r; - ngx_http_log_ctx_t *ctx; + ngx_http_log_ctx_t *lcx; - c = (ngx_connection_t *) ev->data; + c = (ngx_connection_t *) rev->data; r = (ngx_http_request_t *) c->data; - ngx_log_debug(ev->log, "http process request"); + ngx_log_debug(c->log, "http process request"); + + if (rev->timedout) { + return ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT); + } do { if (r->header_read) { - if (r->header_in->end - r->header_in->last == 0) { - again = 1; - } else { - again = 0; - } - r->header_read = 0; - ngx_log_debug(ev->log, "http preread %d" _ + ngx_log_debug(c->log, "http preread %d" _ r->header_in->last - r->header_in->pos); } else { @@ -219,38 +210,32 @@ static int ngx_http_process_request_head if (n == NGX_AGAIN) { if (!r->header_timeout_set) { - if (ev->timer_set) { - ngx_del_timer(ev); + if (rev->timer_set) { + ngx_del_timer(rev); } else { - ev->timer_set = 1; + rev->timer_set = 1; } - ngx_add_timer(ev, ngx_http_client_header_timeout); + ngx_add_timer(rev, ngx_http_client_header_timeout); r->header_timeout_set = 1; } + return NGX_AGAIN; } if (n == NGX_ERROR) { - return ngx_http_close_request(r); + return ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST); } - ngx_log_debug(ev->log, "http read %d" _ n); + ngx_log_debug(c->log, "http read %d" _ n); if (n == 0) { ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client has prematurely closed connection"); - return ngx_http_close_request(r); + "client closed prematurely connection"); + return ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST); } r->header_in->last += n; - - if (ngx_http_large_client_header - && r->header_in->end == r->header_in->last) { - again = 1; - } else { - again = 0; - } } /* the state_handlers are called in the following order: @@ -258,51 +243,56 @@ static int ngx_http_process_request_head ngx_http_process_request_headers(r) */ do { - /* state_handlers return NGX_OK when the whole header done */ rc = (r->state_handler)(r); - if (rc == NGX_ERROR) { - return rc; - } - } while (rc == NGX_AGAIN && r->header_in->pos < r->header_in->last); -#if (HAVE_AIO_EVENT) /* aio, iocp */ + } while (rc == NGX_AGAIN + && (rev->ready || ngx_event_flags & NGX_HAVE_AIO_EVENT)); + + if (rc >= NGX_OK) { - if (ngx_event_flags & NGX_HAVE_AIO_EVENT) { - again = 1; + /* HTTP header done */ + + rev->event_handler = ngx_http_block_read; + + if (rc != NGX_OK) { + return ngx_http_finalize_request(r, rc); } -#endif - - } while (rc == NGX_AGAIN && again); + lcx = r->connection->log->data; + lcx->action = "processing client request"; - if (rc == NGX_OK) { - /* HTTP header done */ + rc = ngx_http_handler(r); - if (ev->timer_set) { - ngx_del_timer(ev); - ev->timer_set = 0; + /* a handler is still busy */ + if (rc == NGX_BUSY) { + return rc; } - return ngx_http_event_request_handler(r); - - } else { /* NGX_AGAIN */ - - if (!r->header_timeout_set) { - - if (ev->timer_set) { - ngx_del_timer(ev); - } else { - ev->timer_set = 1; - } - - ngx_add_timer(ev, ngx_http_client_header_timeout); - r->header_timeout_set = 1; + if (rc == NGX_ERROR) { + rc = NGX_HTTP_INTERNAL_SERVER_ERROR; } - return rc; + return ngx_http_finalize_request(r, rc); + } + + /* NGX_AGAIN */ + + if (!r->header_timeout_set) { + + if (rev->timer_set) { + ngx_del_timer(rev); + } else { + rev->timer_set = 1; + } + + ngx_add_timer(rev, ngx_http_client_header_timeout); + r->header_timeout_set = 1; + } + + return rc; } @@ -310,29 +300,40 @@ static int ngx_http_process_request_line { int rc, offset; ngx_connection_t *c; - ngx_http_log_ctx_t *ctx; + ngx_http_log_ctx_t *lcx; rc = ngx_read_http_request_line(r); c = r->connection; /* a request line has been parsed successfully */ + if (rc == NGX_OK) { + /* copy URI */ - r->uri.len = (r->args_start ? r->args_start - 1 : r->uri_end) - - r->uri_start; + + if (r->args_start) { + r->uri.len = r->args_start - 1 - r->uri_start; + } else { + r->uri.len = r->uri_end - r->uri_start; + } + ngx_test_null(r->uri.data, ngx_palloc(r->pool, r->uri.len + 1), - ngx_http_close_request(r)); + NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_cpystrn(r->uri.data, r->uri_start, r->uri.len + 1); + r->request_line.len = r->request_end - r->request_start; + /* if the large client headers are enabled then we need to copy a request line */ - r->request_line.len = r->request_end - r->request_start; if (ngx_http_large_client_header) { + ngx_test_null(r->request_line.data, ngx_palloc(r->pool, r->request_line.len + 1), - ngx_http_close_request(r)); + NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_cpystrn(r->request_line.data, r->request_start, r->request_line.len + 1); @@ -342,33 +343,59 @@ static int ngx_http_process_request_line } /* copy URI extention if it exists */ + if (r->uri_ext) { - r->exten.len = (r->args_start ? r->args_start - 1 : r->uri_end) - - r->uri_ext; + if (r->args_start) { + r->exten.len = r->args_start - 1 - r->uri_ext; + } else { + r->exten.len = r->uri_end - r->uri_ext; + } + ngx_test_null(r->exten.data, ngx_palloc(r->pool, r->exten.len + 1), - ngx_http_close_request(r)); + NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_cpystrn(r->exten.data, r->uri_ext, r->exten.len + 1); } + /* copy URI arguments if they exist */ + + if (r->args_start && r->uri_end > r->args_start) { + r->args.len = r->uri_end - r->args_start; + + ngx_test_null(r->args.data, + ngx_palloc(r->pool, r->args.len + 1), + NGX_HTTP_INTERNAL_SERVER_ERROR); + + ngx_cpystrn(r->args.data, r->args_start, r->args.len + 1); + } + #if 1 if (r->exten.data == NULL) { r->exten.data = ""; } - ngx_log_debug(r->connection->log, "HTTP: %d, %d, '%s', '%s'" _ + if (r->args.data == NULL) { + r->args.data = ""; + } + ngx_log_debug(r->connection->log, "HTTP: %d, %d, '%s', '%s', '%s'" _ r->method _ r->http_version _ - r->uri.data _ r->exten.data); + r->uri.data _ r->exten.data _ r->args.data); if (r->exten.data[0] == '\0') { r->exten.data = NULL; } + if (r->args.data[0] == '\0') { + r->args.data = NULL; + } #endif - ctx = r->connection->log->data; + lcx = r->connection->log->data; + if (ngx_http_url_in_error_log) { - ngx_test_null(ctx->url, + ngx_test_null(lcx->url, ngx_palloc(r->pool, r->uri_end - r->uri_start + 1), - ngx_http_close_request(r)); - ngx_cpystrn(ctx->url, r->uri_start, r->uri_end - r->uri_start + 1); + NGX_HTTP_INTERNAL_SERVER_ERROR); + + ngx_cpystrn(lcx->url, r->uri_start, r->uri_end - r->uri_start + 1); } /* if we need to parse the headers then return NGX_AGAIN @@ -382,13 +409,21 @@ static int ngx_http_process_request_line r->headers_in.headers = ngx_create_table(r->pool, 10); r->state_handler = ngx_http_process_request_headers; - ctx->action = "reading client request headers"; + lcx->action = "reading client request headers"; + + 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; /* there was error while a request line parsing */ + } else if (rc != NGX_AGAIN) { - return ngx_http_header_parse_error(r, rc, NGX_HTTP_BAD_REQUEST); + ngx_http_header_parse_error(r, rc); + return NGX_HTTP_BAD_REQUEST; } /* NGX_AGAIN: a request line parsing is still not complete */ @@ -405,9 +440,8 @@ static int ngx_http_process_request_line offset = r->request_start - r->header_in->start; if (offset == 0) { - return ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_TOO_LONG_URI, - NGX_HTTP_REQUEST_URI_TOO_LARGE); + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); + return NGX_HTTP_REQUEST_URI_TOO_LARGE; } ngx_memcpy(r->header_in->start, r->request_start, @@ -427,9 +461,8 @@ static int ngx_http_process_request_line } } else { - return ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_TOO_LONG_URI, - NGX_HTTP_REQUEST_URI_TOO_LARGE); + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); + return NGX_HTTP_REQUEST_URI_TOO_LARGE; } } @@ -447,14 +480,22 @@ static int ngx_http_process_request_head rc = ngx_read_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_error(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + 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) { ngx_log_debug(r->connection->log, "HTTP header done"); @@ -468,9 +509,9 @@ static int ngx_http_process_request_head } else { if (r->http_version > NGX_HTTP_VERSION_10) { - return ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_NO_HOST_HEADER, - NGX_HTTP_BAD_REQUEST); + ngx_http_header_parse_error(r, + NGX_HTTP_PARSE_NO_HOST_HEADER); + return NGX_HTTP_BAD_REQUEST; } r->headers_in.host_name_len = 0; } @@ -479,8 +520,10 @@ static int ngx_http_process_request_head return NGX_OK; /* there was error while a header line parsing */ + } else if (rc != NGX_AGAIN) { - return ngx_http_header_parse_error(r, rc, NGX_HTTP_BAD_REQUEST); + ngx_http_header_parse_error(r, rc); + return NGX_HTTP_BAD_REQUEST; } /* NGX_AGAIN: a header line parsing is still not complete */ @@ -494,9 +537,9 @@ static int ngx_http_process_request_head offset = r->header_name_start - r->header_in->start; if (offset == 0) { - return ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_TOO_LONG_HEADER, - NGX_HTTP_BAD_REQUEST); + ngx_http_header_parse_error(r, + NGX_HTTP_PARSE_TOO_LONG_HEADER); + return NGX_HTTP_BAD_REQUEST; } ngx_memcpy(r->header_in->start, r->header_name_start, @@ -510,9 +553,8 @@ static int ngx_http_process_request_head r->header_end -= offset; } else { - return ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_TOO_LONG_HEADER, - NGX_HTTP_BAD_REQUEST); + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER); + return NGX_HTTP_BAD_REQUEST; } } @@ -524,17 +566,17 @@ static int ngx_http_process_request_head static int ngx_http_process_request_header_line(ngx_http_request_t *r) { - int i; - ngx_table_elt_t *h; + int i; + ngx_table_elt_t *h; ngx_test_null(h, ngx_push_table(r->headers_in.headers), NGX_ERROR); - /* if large client headers are enabled then - we need to copy header name and value */ - 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); @@ -550,12 +592,12 @@ static int ngx_http_process_request_head h->value.data[h->value.len] = '\0'; } - for (i = 0; headers_in[i].len != 0; i++) { - if (headers_in[i].len != h->key.len) { + 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].data, h->key.data) == 0) { + 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; } @@ -568,166 +610,130 @@ static int ngx_http_process_request_head } -static int ngx_http_event_request_handler(ngx_http_request_t *r) +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_log_ctx_t *ctx; + int rc, event; + ngx_msec_t timeout; + ngx_event_t *rev, *wev; + ngx_http_core_loc_conf_t *lcf; + + rc = error; - rev = r->connection->read; - wev = r->connection->write; + if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { + + rev = r->connection->read; - if (rev->timer_set) { - ngx_del_timer(rev); - rev->timer_set = 0; + if (rev->timer_set) { + ngx_del_timer(rev); + } else { + rev->timer_set = 1; + } + + rc = ngx_http_special_response_handler(r, rc); } - rev->event_handler = ngx_http_block_read; - - ctx = r->connection->log->data; - ctx->action = "processing client request"; + /* a handler has done its work completely */ - rc = ngx_http_handler(r); - - /* handler is still busy */ - if (rc == NGX_WAITING) - return rc; + if (rc == NGX_OK) { - /* handler has done its work but transfer is still not completed */ - if (rc == NGX_AGAIN) { + if (r->keepalive != 0) { + return ngx_http_set_keepalive(r); + } - /* STUB: timeouts should be reworked */ - if (r->connection->sent > 0) { - ngx_log_debug(r->connection->log, "sent: " OFF_FMT _ - r->connection->sent); - timeout = (ngx_msec_t) (r->connection->sent * 10); - ngx_log_debug(r->connection->log, "timeout: %d" _ timeout); - ngx_add_timer(wev, timeout); - - } else { - ngx_add_timer(wev, 10000); + if (r->lingering_close) { + return ngx_http_set_lingering_close(r); } - wev->event_handler = ngx_http_writer; + return ngx_http_close_request(r, 0); + } + + /* NGX_AGAIN: a handler has done its work + but the transfer is still not completed */ + + lcf = (ngx_http_core_loc_conf_t *) + ngx_http_get_module_loc_conf(r->main ? r->main : r, + ngx_http_core_module); + wev = r->connection->write; + wev->event_handler = ngx_http_writer; + wev->timer_set = 1; + ngx_add_timer(wev, lcf->send_timeout); #if (USE_KQUEUE) #if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */ - wev->lowat = /* STUB */ NGX_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); - } + if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_CLEAR_EVENT) == NGX_ERROR) { + return ngx_http_close_request(r, 0); + } - return rc; + return rc; #else -#if (HAVE_AIO_EVENT) || (HAVE_EDGE_EVENT) /* aio, iocp, epoll */ + /* aio, iocp, epoll */ - if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) { - return rc; - } - -#endif + 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 = /* STUB */ NGX_LOWAT; - } - -#endif - -#if (HAVE_CLEAR_EVENT) /* kqueue */ - - if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { - event = NGX_CLEAR_EVENT; - - } else { - event = NGX_LEVEL_EVENT; - } - -#else /* select, poll, /dev/poll */ - - event = NGX_LEVEL_EVENT; + if (ngx_event_flags & NGX_HAVE_LOWAT_EVENT) { + wev->lowat = lcf->send_lowat; + } #endif - if (ngx_add_event(wev, NGX_WRITE_EVENT, event) == NGX_ERROR) { - return ngx_http_close_request(r); - } + /* kqueue */ - return rc; - + if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { + event = NGX_CLEAR_EVENT; -#endif /* USE_KQUEUE */ - - } + /* select, poll, /dev/poll */ - if (rc == NGX_ERROR) { - /* log http request */ - return ngx_http_close_request(r); + } else { + event = NGX_LEVEL_EVENT; } - if (rc >= NGX_HTTP_SPECIAL_RESPONSE) - return ngx_http_special_response(r, rc); - - /* rc == NGX_OK */ - - if (r->keepalive == 0) { - if (r->lingering_close) { - return ngx_http_set_lingering_close(r); - - } else { - return ngx_http_close_request(r); - } + if (ngx_add_event(wev, NGX_WRITE_EVENT, event) == NGX_ERROR) { + return ngx_http_close_request(r, 0); } - /* keepalive */ + return rc; - return ngx_http_set_keepalive(r); +#endif /* USE_KQUEUE */ } -static int ngx_http_writer(ngx_event_t *ev) +static int ngx_http_writer(ngx_event_t *wev) { - int rc; + int rc; ngx_msec_t timeout; ngx_connection_t *c; ngx_http_request_t *r; - ngx_http_core_loc_conf_t *conf; + ngx_http_core_loc_conf_t *lcf; - c = (ngx_connection_t *) ev->data; + c = (ngx_connection_t *) wev->data; r = (ngx_http_request_t *) c->data; rc = ngx_http_output_filter(r, NULL); - ngx_log_debug(ev->log, "output filter in writer: %d" _ rc); + ngx_log_debug(c->log, "output filter in writer: %d" _ rc); if (rc == NGX_AGAIN) { - /* STUB: timeouts should be reworked */ - if (c->sent > 0) { - conf = (ngx_http_core_loc_conf_t *) - ngx_http_get_module_loc_conf(r->main ? r->main : r, - ngx_http_core_module_ctx); - - timeout = (ngx_msec_t) (c->sent * conf->send_timeout); + lcf = (ngx_http_core_loc_conf_t *) + ngx_http_get_module_loc_conf(r->main ? r->main : r, + ngx_http_core_module); + if (wev->timer_set) { + ngx_del_timer(wev); + } else { + wev->timer_set = 1; + } - ngx_log_debug(ev->log, "sent: " OFF_FMT _ c->sent); - ngx_log_debug(ev->log, "timeout: %d" _ timeout); - - if (ev->timer_set) { - ngx_del_timer(ev); - } else { - ev->timer_set = 1; - } - - ngx_add_timer(ev, timeout); - } + ngx_add_timer(wev, lcf->send_timeout); return rc; } @@ -737,20 +743,17 @@ static int ngx_http_writer(ngx_event_t * /* rc == NGX_OK */ - ngx_log_debug(ev->log, "http writer done"); + ngx_log_debug(c->log, "http writer done"); - if (r->keepalive == 0) { - if (r->lingering_close) { - return ngx_http_set_lingering_close(r); - - } else { - return ngx_http_close_request(r); - } + if (r->keepalive != 0) { + return ngx_http_set_keepalive(r); } - /* keepalive */ + if (r->lingering_close) { + return ngx_http_set_lingering_close(r); + } - return ngx_http_set_keepalive(r); + return ngx_http_close_request(r, 0); } @@ -813,30 +816,35 @@ static int ngx_http_read_discarded_body( ngx_log_debug(ev->log, "http read discarded body"); - if (ev->timedout) + if (ev->timedout) { return NGX_ERROR; + } c = (ngx_connection_t *) ev->data; r = (ngx_http_request_t *) c->data; lcf = (ngx_http_core_loc_conf_t *) - ngx_http_get_module_loc_conf(r, ngx_http_core_module_ctx); + ngx_http_get_module_loc_conf(r, ngx_http_core_module); - if (r->discarded_buffer == NULL) + if (r->discarded_buffer == NULL) { ngx_test_null(r->discarded_buffer, ngx_palloc(r->pool, lcf->discarded_buffer_size), NGX_ERROR); + } size = r->client_content_length; - if (size > lcf->discarded_buffer_size) + if (size > lcf->discarded_buffer_size) { size = lcf->discarded_buffer_size; + } n = ngx_event_recv(c, r->discarded_buffer, size); - if (n == NGX_ERROR) + if (n == NGX_ERROR) { return NGX_ERROR; + } - if (n == NGX_AGAIN) + if (n == NGX_AGAIN) { return NGX_OK; + } r->client_content_length -= n; /* XXX: what if r->client_content_length == 0 ? */ @@ -854,11 +862,10 @@ static int ngx_http_set_keepalive(ngx_ht c = (ngx_connection_t *) r->connection; rev = c->read; - wev = c->write; ctx = (ngx_http_log_ctx_t *) c->log->data; ctx->action = "closing request"; - ngx_http_close_request(r); + ngx_http_close_request(r, 0); if (rev->blocked && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) { if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) == NGX_ERROR) { @@ -876,8 +883,8 @@ static int ngx_http_set_keepalive(ngx_ht /* pipelined request */ if (h->pos < h->last) { - /* We do not know here whether pipelined request is complete - so if large client headers are not enabled + /* We do not know here whether a pipelined request is complete + so if the large client headers are not enabled we need to copy the data to the start of c->buffer. This copy should be rare because clients that support pipelined requests (Mozilla 1.x, Opera 6.x) are still rare */ @@ -898,6 +905,7 @@ static int ngx_http_set_keepalive(ngx_ht h->pos = h->last = h->start; rev->event_handler = ngx_http_keepalive_handler; + wev = c->write; if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) { if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) { @@ -925,62 +933,60 @@ static int ngx_http_set_keepalive(ngx_ht } -static int ngx_http_keepalive_handler(ngx_event_t *ev) +static int ngx_http_keepalive_handler(ngx_event_t *rev) { ssize_t n; ngx_connection_t *c; - ngx_http_log_ctx_t *ctx; + ngx_http_log_ctx_t *lctx; - c = (ngx_connection_t *) ev->data; + c = (ngx_connection_t *) rev->data; - ngx_log_debug(ev->log, "http keepalive handler"); + ngx_log_debug(c->log, "http keepalive handler"); - if (ev->timedout) { + if (rev->timedout) { return NGX_DONE; } - /* MSIE closes keepalive connection with RST flag + /* MSIE closes a keepalive connection with RST flag so we ignore ECONNRESET here */ - ev->ignore_econnreset = 1; + rev->ignore_econnreset = 1; ngx_set_socket_errno(0); n = ngx_event_recv(c, c->buffer->last, c->buffer->end - c->buffer->last); - ev->ignore_econnreset = 0; + rev->ignore_econnreset = 0; if (n == NGX_AGAIN || n == NGX_ERROR) { return n; } - ctx = (ngx_http_log_ctx_t *) ev->log->data; - ev->log->handler = NULL; + lctx = (ngx_http_log_ctx_t *) rev->log->data; + rev->log->handler = NULL; if (n == 0) { - ngx_log_error(NGX_LOG_INFO, ev->log, ngx_socket_errno, - "client %s closed keepalive connection", ctx->client); + ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno, + "client %s closed keepalive connection", lctx->client); return NGX_DONE; } c->buffer->last += n; - ev->log->handler = ngx_http_log_error; - ctx->action = "reading client request line"; + rev->log->handler = ngx_http_log_error; + lctx->action = "reading client request line"; - return ngx_http_init_request(ev); + return ngx_http_init_request(rev); } static int ngx_http_set_lingering_close(ngx_http_request_t *r) { - int blocked; - ngx_event_t *rev, *wev; + ngx_event_t *rev; ngx_connection_t *c; ngx_http_core_loc_conf_t *lcf; c = r->connection; rev = c->read; - wev = c->write; lcf = (ngx_http_core_loc_conf_t *) - ngx_http_get_module_loc_conf(r, ngx_http_core_module_ctx); + ngx_http_get_module_loc_conf(r, ngx_http_core_module); r->lingering_time = ngx_time() + lcf->lingering_time / 1000; r->connection->read->event_handler = ngx_http_lingering_close_handler; @@ -995,36 +1001,36 @@ static int ngx_http_set_lingering_close( 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); + return ngx_http_close_request(r, 0); } - blocked = 1; rev->blocked = 0; - - } else { - blocked = 0; } - if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) { - if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) { - return ngx_http_close_request(r); +#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); } } +#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); + return ngx_http_close_request(r, 0); } -#if (HAVE_AIO_EVENT) /* aio, iocp */ +#if (USE_KQUEUE) - if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) || blocked) { + if (rev->ready) { return ngx_http_lingering_close_handler(rev); } #else - if (blocked) { + if (rev->ready || (ngx_event_flags & NGX_HAVE_AIO_EVENT)) { return ngx_http_lingering_close_handler(rev); } @@ -1034,30 +1040,30 @@ static int ngx_http_set_lingering_close( } -static int ngx_http_lingering_close_handler(ngx_event_t *ev) +static int ngx_http_lingering_close_handler(ngx_event_t *rev) { - ssize_t n; - ngx_msec_t timer; - ngx_connection_t *c; - ngx_http_request_t *r; + ssize_t n; + ngx_msec_t timer; + ngx_connection_t *c; + ngx_http_request_t *r; ngx_http_core_loc_conf_t *lcf; - ngx_log_debug(ev->log, "http lingering close handler"); - - c = (ngx_connection_t *) ev->data; + c = (ngx_connection_t *) rev->data; r = (ngx_http_request_t *) c->data; - if (ev->timedout) { - return ngx_http_close_request(r); + ngx_log_debug(c->log, "http lingering close handler"); + + if (rev->timedout) { + return ngx_http_close_request(r, 0); } timer = r->lingering_time - ngx_time(); if (timer <= 0) { - return ngx_http_close_request(r); + return ngx_http_close_request(r, 0); } lcf = (ngx_http_core_loc_conf_t *) - ngx_http_get_module_loc_conf(r, ngx_http_core_module_ctx); + ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (r->discarded_buffer == NULL) { @@ -1072,29 +1078,32 @@ static int ngx_http_lingering_close_hand } else { ngx_test_null(r->discarded_buffer, ngx_palloc(c->pool, lcf->discarded_buffer_size), - ngx_http_close_request(r)); + ngx_http_close_request(r, 0)); } } - n = ngx_event_recv(c, r->discarded_buffer, lcf->discarded_buffer_size); + do { + n = ngx_event_recv(c, r->discarded_buffer, lcf->discarded_buffer_size); - ngx_log_debug(ev->log, "lingering read: %d" _ n); + ngx_log_debug(c->log, "lingering read: %d" _ n); - if (n == NGX_ERROR || n == 0) { - return ngx_http_close_request(r); - } + if (n == NGX_ERROR || n == 0) { + return ngx_http_close_request(r, 0); + } + + } while (rev->ready); timer *= 1000; if (timer > lcf->lingering_timeout) { timer = lcf->lingering_timeout; } - if (ev->timer_set) { - ngx_del_timer(ev); + if (rev->timer_set) { + ngx_del_timer(rev); } else { - ev->timer_set = 1; + rev->timer_set = 1; } - ngx_add_timer(ev, timer); + ngx_add_timer(rev, timer); return NGX_OK; } @@ -1106,8 +1115,7 @@ static int ngx_http_close_connection(ngx } -static int ngx_http_header_parse_error(ngx_http_request_t *r, - int parse_err, int err) +static void ngx_http_header_parse_error(ngx_http_request_t *r, int parse_err) { ngx_http_log_ctx_t *ctx; @@ -1126,8 +1134,6 @@ static int ngx_http_header_parse_error(n } r->connection->log->handler = ngx_http_log_error; - - return ngx_http_error(r, err); } @@ -1135,10 +1141,11 @@ static size_t ngx_http_log_error(void *d { ngx_http_log_ctx_t *ctx = (ngx_http_log_ctx_t *) data; - if (ctx->url) + if (ctx->url) { return ngx_snprintf(buf, len, " while %s, client: %s, URL: %s", ctx->action, ctx->client, ctx->url); - else + } else { return ngx_snprintf(buf, len, " while %s, client: %s", ctx->action, ctx->client); + } }
--- a/src/http/ngx_http_header_filter.c +++ b/src/http/ngx_http_header_filter.c @@ -10,26 +10,23 @@ #include <ngx_conf_file.h> #include <ngx_http.h> +#include <ngx_http_config.h> #include <ngx_http_write_filter.h> +static void ngx_http_header_filter_init(ngx_pool_t *pool, + ngx_http_conf_filter_t *cf); static int ngx_http_header_filter(ngx_http_request_t *r); ngx_http_module_t ngx_http_header_filter_module_ctx = { - NGX_HTTP_MODULE, - NULL, /* create server config */ NULL, /* init server config */ + NULL, /* create location config */ NULL, /* merge location config */ - NULL, /* translate handler */ - - ngx_http_header_filter, /* output header filter */ - NULL, /* next output header filter */ - NULL, /* output body filter */ - NULL /* next output body filter */ + ngx_http_header_filter_init /* init filters */ }; @@ -295,3 +292,10 @@ static int ngx_http_header_filter(ngx_ht return ngx_http_write_filter(r, ch); } + + +static void ngx_http_header_filter_init(ngx_pool_t *pool, + ngx_http_conf_filter_t *cf) +{ + cf->output_header_filter = ngx_http_header_filter; +}
--- a/src/http/ngx_http_output_filter.c +++ b/src/http/ngx_http_output_filter.c @@ -16,6 +16,8 @@ static int ngx_http_output_filter_copy_h static void *ngx_http_output_filter_create_conf(ngx_pool_t *pool); static char *ngx_http_output_filter_merge_conf(ngx_pool_t *pool, void *parent, void *child); +static void ngx_http_output_filter_init(ngx_pool_t *pool, + ngx_http_conf_filter_t *cf); static ngx_command_t ngx_http_output_filter_commands[] = { @@ -31,20 +33,13 @@ static ngx_command_t ngx_http_output_fi static ngx_http_module_t ngx_http_output_filter_module_ctx = { - NGX_HTTP_MODULE, - NULL, /* create server config */ NULL, /* init server config */ + ngx_http_output_filter_create_conf, /* create location config */ ngx_http_output_filter_merge_conf, /* merge location config */ - NULL, /* translate handler */ - - NULL, /* output header filter */ - NULL, /* next output header filter */ - (int (*)(ngx_http_request_t *, ngx_chain_t *)) - ngx_http_output_filter, /* output body filter */ - NULL /* next output body filter */ + ngx_http_output_filter_init /* output body filter */ }; @@ -58,7 +53,12 @@ ngx_module_t ngx_http_output_filter_mod +static int (*next_filter) (ngx_http_request_t *r, ngx_chain_t *ch); + + +#if 0 #define next_filter ngx_http_output_filter_module_ctx.next_output_body_filter +#endif #define need_to_copy(r, hunk) \ (((r->filter & NGX_HTTP_FILTER_NEED_IN_MEMORY) \ @@ -300,6 +300,14 @@ static int ngx_http_output_filter_copy_h } +static void ngx_http_output_filter_init(ngx_pool_t *pool, + ngx_http_conf_filter_t *cf) +{ + next_filter = cf->output_body_filter; + cf->output_body_filter = NULL; +} + + static void *ngx_http_output_filter_create_conf(ngx_pool_t *pool) { ngx_http_output_filter_conf_t *conf;
--- a/src/http/ngx_http_special_response.c +++ b/src/http/ngx_http_special_response.c @@ -39,6 +39,14 @@ static char error_404_page[] = ; +static char error_408_page[] = +"<html>" CRLF +"<head><title>408 Request Time-out</title></head>" CRLF +"<body bgcolor=\"white\">" CRLF +"<center><h1>408 Request Time-out</h1></center>" CRLF +; + + static char error_414_page[] = "<html>" CRLF "<head><title>414 Request-URI Too Large</title></head>" CRLF @@ -55,35 +63,54 @@ static char error_500_page[] = ; +static char error_502_page[] = +"<html>" CRLF +"<head><title>502 Bad Gateway</title></head>" CRLF +"<body bgcolor=\"white\">" CRLF +"<center><h1>502 Bad Gateway</h1></center>" CRLF +; + + +static char error_504_page[] = +"<html>" CRLF +"<head><title>504 Gateway Time-out</title></head>" CRLF +"<body bgcolor=\"white\">" CRLF +"<center><h1>504 Gateway Time-out</h1></center>" CRLF +; + + static ngx_str_t error_pages[] = { - { 0, NULL}, /* 301 */ - { 0, NULL}, /* 302 */ - { 0, NULL}, /* 303 */ - { 0, NULL}, /* 304 */ + ngx_null_string, /* 301 */ + ngx_null_string, /* 302 */ + ngx_null_string, /* 303 */ - { sizeof(error_400_page) - 1, error_400_page }, - { 0, NULL}, /* 401 */ - { 0, NULL}, /* 402 */ - { sizeof(error_403_page) - 1, error_403_page }, - { sizeof(error_404_page) - 1, error_404_page }, - { 0, NULL}, /* 405 */ - { 0, NULL}, /* 406 */ - { 0, NULL}, /* 407 */ - { 0, NULL}, /* 408 */ - { 0, NULL}, /* 409 */ - { 0, NULL}, /* 410 */ - { 0, NULL}, /* 411 */ - { 0, NULL}, /* 412 */ - { 0, NULL}, /* 413 */ - { sizeof(error_414_page) - 1, error_414_page }, - { 0, NULL}, /* 415 */ - { 0, NULL}, /* 416 */ + ngx_string(error_400_page), + ngx_null_string, /* 401 */ + ngx_null_string, /* 402 */ + ngx_string(error_403_page), + ngx_string(error_404_page), + ngx_null_string, /* 405 */ + ngx_null_string, /* 406 */ + ngx_null_string, /* 407 */ + ngx_string(error_408_page), + ngx_null_string, /* 409 */ + ngx_null_string, /* 410 */ + ngx_null_string, /* 411 */ + ngx_null_string, /* 412 */ + ngx_null_string, /* 413 */ + ngx_string(error_414_page), + ngx_null_string, /* 415 */ + ngx_null_string, /* 416 */ - { sizeof(error_500_page) - 1, error_500_page } + ngx_string(error_500_page), + ngx_null_string, /* 501 */ + ngx_string(error_502_page), + ngx_null_string, /* 503 */ + ngx_string(error_504_page) }; -int ngx_http_special_response(ngx_http_request_t *r, int error) +int ngx_http_special_response_handler(ngx_http_request_t *r, int error) { int err, len; ngx_hunk_t *message, *tail; @@ -96,10 +123,10 @@ int ngx_http_special_response(ngx_http_r err = error - NGX_HTTP_MOVED_PERMANENTLY; } else if (error < NGX_HTTP_INTERNAL_SERVER_ERROR) { - err = error - NGX_HTTP_BAD_REQUEST + 4; + err = error - NGX_HTTP_BAD_REQUEST + 3; } else { - err = error - NGX_HTTP_INTERNAL_SERVER_ERROR + 4 + 17; + err = error - NGX_HTTP_INTERNAL_SERVER_ERROR + 3 + 17; } if (r->keepalive != 0) {
--- a/src/http/ngx_http_write_filter.c +++ b/src/http/ngx_http_write_filter.c @@ -16,6 +16,8 @@ static void *ngx_http_write_filter_create_conf(ngx_pool_t *pool); static char *ngx_http_write_filter_merge_conf(ngx_pool_t *pool, void *parent, void *child); +static void ngx_http_write_filter_init(ngx_pool_t *pool, + ngx_http_conf_filter_t *cf); static ngx_command_t ngx_http_write_filter_commands[] = { @@ -31,19 +33,13 @@ static ngx_command_t ngx_http_write_filt ngx_http_module_t ngx_http_write_filter_module_ctx = { - NGX_HTTP_MODULE, - NULL, /* create server config */ NULL, /* init server config */ + ngx_http_write_filter_create_conf, /* create location config */ ngx_http_write_filter_merge_conf, /* merge location config */ - NULL, /* translate handler */ - - NULL, /* output header filter */ - NULL, /* next output header filter */ - ngx_http_write_filter, /* output body filter */ - NULL, /* next output body filter */ + ngx_http_write_filter_init /* init filters */ }; @@ -156,6 +152,13 @@ int ngx_http_write_filter(ngx_http_reque } +static void ngx_http_write_filter_init(ngx_pool_t *pool, + ngx_http_conf_filter_t *cf) +{ + cf->output_body_filter = ngx_http_write_filter; +} + + static void *ngx_http_write_filter_create_conf(ngx_pool_t *pool) { ngx_http_write_filter_conf_t *conf;