diff src/http/modules/ngx_http_event_proxy_handler.c @ 19:d7908993fdeb

nginx-0.0.1-2002-12-02-19:09:40 import; resume after 2 months stall
author Igor Sysoev <igor@sysoev.ru>
date Mon, 02 Dec 2002 16:09:40 +0000
parents
children a649c0a0adb3
line wrap: on
line diff
new file mode 100644
--- /dev/null
+++ b/src/http/modules/ngx_http_event_proxy_handler.c
@@ -0,0 +1,206 @@
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_string.h>
+#include <ngx_file.h>
+#include <ngx_hunk.h>
+#include <ngx_http.h>
+#include <ngx_http_event_proxy_handler.h>
+
+ngx_http_module_t  ngx_http_proxy_module;
+
+
+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);
+
+
+int ngx_http_proxy_handler(ngx_http_request_t *r)
+{
+    struct sockaddr_in addr;
+    ngx_http_proxy_ctx_t  *p;
+
+    p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
+
+    if (p == NULL)
+        ngx_http_create_ctx(r, p, ngx_http_proxy_module,
+                            sizeof(ngx_http_proxy_ctx_t));
+
+    ngx_memzero(&addr, sizeof(struct sockaddr_in));
+    addr.sin_family = AF_INET;
+    addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+    addr.sin_port = htons(9000);
+
+    ngx_http_proxy_connect(r, &addr, "connecting to 127.0.0.1:9000");
+}
+
+static int ngx_http_proxy_connect(ngx_http_request_t *r,
+                                  struct sockaddr_in *addr,
+                                  char *addr_text)
+{
+    int                  rc;
+    ngx_err_t            err;
+    ngx_socket_t         s;
+    ngx_event_t         *ev;
+    ngx_connection_t    *c;
+    ngx_http_log_ctx_t  *ctx;
+
+    c = r->connection;
+    ctx = c->log->data;
+    ctx->action = addr_text;
+
+    s = ngx_socket(AF_INET, SOCK_STREAM, IPPROTO_IP, 0);
+    if (s == -1) {
+        ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
+                      ngx_socket_n " failed");
+        return NGX_ERROR;
+    }
+
+#if 0
+    if (rcvbuf) {
+        if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
+                       (const void *) &rcvbuf, sizeof(int)) == -1) {
+            ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
+                          "setsockopt(SO_RCVBUF) failed");
+
+            if (ngx_close_socket(s) == -1)
+                ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
+                              ngx_close_socket_n " failed");
+
+            return NGX_ERROR;
+        }
+    }
+#endif
+
+    if (ngx_nonblocking(s) == -1) {
+        ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
+                      ngx_nonblocking_n " failed");
+
+        if (ngx_close_socket(s) == -1)
+            ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
+                          ngx_close_socket_n " failed");
+
+        return NGX_ERROR;
+    }
+
+    rc = connect(s, (struct sockaddr *) addr, sizeof(struct sockaddr_in));
+
+    if (rc == -1) {
+        err = ngx_socket_errno;
+        if (err != NGX_EINPROGRESS) {
+            ngx_log_error(NGX_LOG_ERR, c->log, err, "connect() failed");
+
+            if (ngx_close_socket(s) == -1)
+                ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
+                              ngx_close_socket_n " failed");
+
+            return NGX_ERROR;
+        }
+    }
+
+    ngx_memzero(&ngx_read_events[s], sizeof(ngx_event_t));
+    ngx_memzero(&ngx_write_events[s], sizeof(ngx_event_t));
+    ngx_memzero(&ngx_connections[s], sizeof(ngx_connection_t));
+
+    ngx_read_events[s].data = ngx_write_events[s].data = &ngx_connections[s];
+    ngx_connections[s].read = &ngx_read_events[s];
+    ngx_connections[s].write = &ngx_write_events[s];
+
+    ngx_connections[s].fd = s;
+    ngx_connections[s].server = c->server;
+    ngx_connections[s].servers = c->servers;
+
+    ngx_connections[s].log =
+        ngx_read_events[s].log = ngx_write_events[s].log = c->log;
+
+    if (rc == -1) {
+        ngx_write_events[s].event_handler = ngx_http_proxy_send_request;
+
+        return ngx_add_event(&ngx_write_events[s],
+                             NGX_WRITE_EVENT, NGX_ONESHOT_EVENT);
+    }
+
+    ngx_write_events[s].write = 1;
+    ngx_write_events[s].ready = 1;
+
+    return ngx_http_proxy_send_request(ev);
+}
+
+static int ngx_http_proxy_send_request(ngx_event_t *ev)
+{
+    return NGX_ERROR;
+}
+
+#if 0
+
+static int ngx_http_proxy_send_request(ngx_event_t *ev)
+{
+    ngx_connection_t      *c;
+    ngx_http_request_t    *r;
+    ngx_http_proxy_ctx_t  *p;
+
+    c = (ngx_connection_t *) ev->data;
+    r = (ngx_http_request_t *) c->data;
+    p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
+
+    n = ngx_send(p->fd, p->header_out->pos.mem,
+                 p->header_out->end.mem - p->header_out->pos.mem);
+
+    if (n == NGX_ERROR) {
+        ngx_log_error(NGX_LOG_ERR, r->log, ngx_socket_errno,
+                      ngx_send_n " %s falied", p->addr_text);
+        return NGX_ERROR;
+    }
+
+    p->header_out->pos.mem += n;
+
+    if (p->header_out->end.mem - p->header_out->pos.mem > 0)
+        return NGX_AGAIN;
+
+    /* TODO: body */
+
+    return NGX_OK;
+}
+
+static int ngx_http_proxy_read_response_header(ngx_event_t *ev)
+{
+    ngx_connection_t      *c;
+    ngx_http_request_t    *r;
+    ngx_http_proxy_ctx_t  *p;
+
+    if (ev->timedout)
+        return NGX_ERROR;
+
+    c = (ngx_connection_t *) ev->data;
+    r = (ngx_http_request_t *) c->data;
+    p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
+
+    n = ngx_event_recv(c, p->header_in->last.mem,
+                       p->header_in->end - p->header_in->last.mem);
+
+}
+
+static int ngx_http_proxy_read_response_body(ngx_event_t *ev)
+{
+    ngx_connection_t      *c;
+    ngx_http_request_t    *r;
+    ngx_http_proxy_ctx_t  *p;
+
+    if (ev->timedout)
+        return NGX_ERROR;
+
+    c = (ngx_connection_t *) ev->data;
+    r = (ngx_http_request_t *) c->data;
+    p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
+
+}
+
+static int ngx_http_proxy_write_to_client(ngx_event_t *ev)
+{
+    /* если бэкенд быстрее, то CLEAR, иначе - ONESHOT */
+
+    rc = ngx_http_output_filter(r, h);
+}
+
+#endif