feature: added new ffi function ngx_http_lua_ffi_ssl_ciphers.

.travis.yml

@@ -87,7 +87,7 @@ install:
   - git clone https://github.com/openresty/rds-json-nginx-module.git ../rds-json-nginx-module
   - git clone https://github.com/openresty/srcache-nginx-module.git ../srcache-nginx-module
   - git clone https://github.com/openresty/redis2-nginx-module.git ../redis2-nginx-module
-  - git clone https://github.com/openresty/lua-resty-core.git ../lua-resty-core
+  - git clone -b ciphers https://github.com/openresty/lua-resty-core.git ../lua-resty-core
   - git clone https://github.com/openresty/lua-resty-lrucache.git ../lua-resty-lrucache
   - git clone https://github.com/openresty/lua-resty-mysql.git ../lua-resty-mysql
   - git clone https://github.com/openresty/lua-resty-string.git ../lua-resty-string

src/ngx_http_lua_ssl_certby.c

@@ -961,6 +961,33 @@ ngx_http_lua_ffi_ssl_raw_client_addr(ngx_http_request_t *r, char **addr,
 }
 
 
+int
+ngx_http_lua_ffi_ssl_ciphers(ngx_http_request_t *r, char **pciphers,
+    size_t *cipherslen, char **err)
+{
+    ngx_int_t            rc;
+    ngx_str_t            ciphers;
+    ngx_connection_t    *c;
+
+    c = r->connection;
+    if (c == NULL || c->ssl == NULL) {
+        *err = "bad request";
+        return NGX_ERROR;
+    }
+
+    rc = ngx_ssl_get_ciphers(c, r->pool, &ciphers);
+    if (rc != NGX_OK) {
+        *err = "no memory";
+        return NGX_ERROR;
+    }
+
+    *pciphers = (char *) ciphers.data;
+    *cipherslen = ciphers.len;
+
+    return NGX_OK;
+}
+
+
 int
 ngx_http_lua_ffi_cert_pem_to_der(const u_char *pem, size_t pem_len, u_char *der,
     char **err)

t/139-ssl-cert-by.t

@@ -2321,3 +2321,104 @@ ssl handshake: userdata
 uthread: hello from f()
 uthread: killed
 uthread: failed to kill: already waited or killed
+
+
+
+=== TEST 27: get ciphers
+--- http_config
+    lua_package_path "../lua-resty-core/lib/?.lua;;";
+    lua_ssl_ciphers ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
+
+    server {
+        listen 127.0.0.1:12345 ssl;
+        server_name   test.com;
+
+        ssl_certificate_by_lua_block {
+            local ssl = require "ngx.ssl"
+            print("ciphers: ", ssl.ciphers())
+        }
+        ssl_certificate ../../cert/test.crt;
+        ssl_certificate_key ../../cert/test.key;
+
+        server_tokens off;
+        location /foo {
+            default_type 'text/plain';
+            content_by_lua_block { ngx.status = 201 ngx.say("foo") ngx.exit(201) }
+            more_clear_headers Date;
+        }
+    }
+--- config
+    server_tokens off;
+    lua_ssl_trusted_certificate ../../cert/test.crt;
+
+    location /t {
+        content_by_lua_block {
+            do
+                local sock = ngx.socket.tcp()
+
+                sock:settimeout(2000)
+
+                local ok, err = sock:connect("127.0.0.1", 12345)
+                if not ok then
+                    ngx.say("failed to connect: ", err)
+                    return
+                end
+
+                ngx.say("connected: ", ok)
+
+                local sess, err = sock:sslhandshake(nil, "test.com", true)
+                if not sess then
+                    ngx.say("failed to do SSL handshake: ", err)
+                    return
+                end
+
+                ngx.say("ssl handshake: ", type(sess))
+
+                local req = "GET /foo HTTP/1.0\r\nHost: test.com\r\nConnection: close\r\n\r\n"
+                local bytes, err = sock:send(req)
+                if not bytes then
+                    ngx.say("failed to send http request: ", err)
+                    return
+                end
+
+                ngx.say("sent http request: ", bytes, " bytes.")
+
+                while true do
+                    local line, err = sock:receive()
+                    if not line then
+                        -- ngx.say("failed to receive response status line: ", err)
+                        break
+                    end
+
+                    ngx.say("received: ", line)
+                end
+
+                local ok, err = sock:close()
+                ngx.say("close: ", ok, " ", err)
+            end  -- do
+            -- collectgarbage()
+        }
+    }
+
+--- request
+GET /t
+--- response_body
+connected: 1
+ssl handshake: userdata
+sent http request: 56 bytes.
+received: HTTP/1.1 201 Created
+received: Server: nginx
+received: Content-Type: text/plain
+received: Content-Length: 4
+received: Connection: close
+received: 
+received: foo
+close: 1 nil
+
+--- error_log
+ciphers: ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384
+
+--- no_error_log
+[error]
+[alert]
+[crit]