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Diffstat (limited to 'src/http/modules/ngx_http_event_proxy_handler.c')
-rw-r--r--src/http/modules/ngx_http_event_proxy_handler.c503
1 files changed, 445 insertions, 58 deletions
diff --git a/src/http/modules/ngx_http_event_proxy_handler.c b/src/http/modules/ngx_http_event_proxy_handler.c
index 38fbb0694..ac475e3dc 100644
--- a/src/http/modules/ngx_http_event_proxy_handler.c
+++ b/src/http/modules/ngx_http_event_proxy_handler.c
@@ -14,6 +14,23 @@
#include <ngx_http_event_proxy_handler.h>
+static ngx_chain_t *ngx_http_proxy_create_request(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);
+
+static int ngx_http_proxy_init_response(ngx_event_t *ev);
+static int ngx_http_proxy_read_response_header(ngx_event_t *ev);
+static int ngx_http_proxy_process_status_line(ngx_http_request_t *r,
+ ngx_http_proxy_ctx_t *p);
+
+static int ngx_http_proxy_read_response_body(ngx_event_t *ev);
+static int ngx_http_proxy_write_to_client(ngx_event_t *ev);
+
+static int ngx_read_http_proxy_status_line(ngx_http_proxy_ctx_t *ctx);
+
+
static ngx_command_t ngx_http_proxy_commands[] = {
{ngx_string("proxy_large_header"),
@@ -27,19 +44,13 @@ static ngx_command_t ngx_http_proxy_commands[] = {
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 */
+ NULL /* init filters */
};
@@ -52,25 +63,16 @@ ngx_module_t ngx_http_proxy_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,
- struct sockaddr_in *addr,
- char *addr_text);
-static int ngx_http_proxy_send_request(ngx_event_t *ev);
-
-static int ngx_http_proxy_init_response(ngx_event_t *ev);
-static int ngx_http_proxy_read_response_header(ngx_event_t *ev);
-static int ngx_http_proxy_process_status_line(ngx_http_request_t *r,
- ngx_http_proxy_ctx_t *p);
-
-static int ngx_http_proxy_read_response_body(ngx_event_t *ev);
-static int ngx_http_proxy_write_to_client(ngx_event_t *ev);
-
-static int ngx_read_http_proxy_status_line(ngx_http_proxy_ctx_t *ctx);
+static ngx_str_t http_methods[] = {
+ ngx_string("GET "),
+ ngx_string("HEAD "),
+ ngx_string("POST ")
+};
-static char conn_close[] = "Connection: close" CRLF;
+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: close" CRLF;
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_create_request(ngx_http_request_t *r)
/* 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_create_request(ngx_http_request_t *r)
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_create_request(ngx_http_request_t *r)
}
-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_http_request_t *r,
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_http_request_t *r,
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_http_request_t *r,
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_http_request_t *r,
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_http_request_t *r,
/* TODO: aio, iocp */
+ /* The connection has been established */
+ if (rc == 0) {
+ wev->write = 1;
+ wev->ready = 1;
+
+ return ngx_http_proxy_send_request(wev);
+ }
+
/* 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;
- }
+
+ /* TODO: oneshot */
+ if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_ONESHOT_EVENT) != NGX_OK) {
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
- wev->write = 1;
- wev->ready = 1;
+ wev->timer_set = 1;
+ ngx_add_timer(wev, /* STUB: lcf->connect_timeout */ 10000);
- return ngx_http_proxy_send_request(wev);
+ return NGX_BUSY;
}
@@ -339,7 +608,11 @@ static int ngx_http_proxy_send_request(ngx_event_t *ev)
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(ngx_event_t *ev)
p->out = chain;
- return NGX_WAITING;
+ return NGX_BUSY;
}
@@ -368,7 +641,7 @@ static int ngx_http_proxy_init_response(ngx_event_t *ev)
}
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_header(ngx_event_t *ev)
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_header(ngx_event_t *ev)
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_body(ngx_event_t *ev)
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_body(ngx_event_t *ev)
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_body(ngx_event_t *ev)
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_client(ngx_event_t *ev)
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_request_t *r, ngx_http_proxy_ctx_t *p,
}
+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_line(ngx_http_proxy_ctx_t *ctx)
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";
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-17 12:38:20 +0000