feature: ssl/tls: support for passphrase protected key. (#1991)

Co-authored-by: guanglinlv <lvguanglin@huawei.com>

Author: zhuizhuhaomeng

src/ngx_http_lua_ssl_certby.c

@@ -1042,7 +1042,7 @@ ngx_http_lua_ffi_cert_pem_to_der(const u_char *pem, size_t pem_len, u_char *der,
 
 int
 ngx_http_lua_ffi_priv_key_pem_to_der(const u_char *pem, size_t pem_len,
-    u_char *der, char **err)
+    const u_char *passphrase, u_char *der, char **err)
 {
     int          len;
     BIO         *in;
@@ -1055,7 +1055,7 @@ ngx_http_lua_ffi_priv_key_pem_to_der(const u_char *pem, size_t pem_len,
         return NGX_ERROR;
     }
 
-    pkey = PEM_read_bio_PrivateKey(in, NULL, NULL, NULL);
+    pkey = PEM_read_bio_PrivateKey(in, NULL, NULL, (void *) passphrase);
     if (pkey == NULL) {
         BIO_free(in);
         *err = "PEM_read_bio_PrivateKey() failed";

t/140-ssl-c-api.t

@@ -36,7 +36,8 @@ ffi.cdef[[
         size_t pem_len, unsigned char *der, char **err);
 
     int ngx_http_lua_ffi_priv_key_pem_to_der(const unsigned char *pem,
-        size_t pem_len, unsigned char *der, char **err);
+        size_t pem_len, const unsigned char *passphrase,
+        unsigned char *der, char **err);
 
     int ngx_http_lua_ffi_ssl_set_der_certificate(void *r,
         const char *data, size_t len, char **err);
@@ -130,7 +131,7 @@ __DATA__
 
             out = ffi.new("char [?]", #pkey)
 
-            local rc = ffi.C.ngx_http_lua_ffi_priv_key_pem_to_der(pkey, #pkey, out, errmsg)
+            local rc = ffi.C.ngx_http_lua_ffi_priv_key_pem_to_der(pkey, #pkey, nil, out, errmsg)
             if rc < 1 then
                 ngx.log(ngx.ERR, "failed to parse PEM priv key: ",
                         ffi.string(errmsg[0]))
@@ -284,7 +285,7 @@ lua ssl server name: "test.com"
 
             out = ffi.new("char [?]", #pkey)
 
-            local rc = ffi.C.ngx_http_lua_ffi_priv_key_pem_to_der(pkey, #pkey, out, errmsg)
+            local rc = ffi.C.ngx_http_lua_ffi_priv_key_pem_to_der(pkey, #pkey, nil, out, errmsg)
             if rc < 1 then
                 ngx.log(ngx.ERR, "failed to parse PEM priv key: ",
                         ffi.string(errmsg[0]))
@@ -422,7 +423,7 @@ lua ssl server name: "test.com"
 
             out = ffi.new("char [?]", #pkey)
 
-            local rc = ffi.C.ngx_http_lua_ffi_priv_key_pem_to_der(pkey, #pkey, out, errmsg)
+            local rc = ffi.C.ngx_http_lua_ffi_priv_key_pem_to_der(pkey, #pkey, nil, out, errmsg)
             if rc < 1 then
                 ngx.log(ngx.ERR, "failed to parse PEM priv key: ",
                         ffi.string(errmsg[0]))
@@ -1024,3 +1025,175 @@ client certificate subject: nil
 --- no_error_log
 [error]
 [alert]
+
+
+
+=== TEST 9: simple cert + private key with passphrase
+--- http_config
+    server {
+        listen unix:$TEST_NGINX_HTML_DIR/nginx.sock ssl;
+        server_name   test.com;
+
+        ssl_certificate_by_lua_block {
+            collectgarbage()
+
+            local ffi = require "ffi"
+
+            ffi.cdef[[
+                int ngx_http_lua_ffi_cert_pem_to_der(const unsigned char *pem,
+                    size_t pem_len, unsigned char *der, char **err);
+
+                int ngx_http_lua_ffi_priv_key_pem_to_der(const unsigned char *pem,
+                    size_t pem_len, const unsigned char *passphrase,
+                    unsigned char *der, char **err);
+
+                int ngx_http_lua_ffi_ssl_set_der_certificate(void *r,
+                    const char *data, size_t len, char **err);
+
+                int ngx_http_lua_ffi_ssl_set_der_private_key(void *r,
+                    const char *data, size_t len, char **err);
+
+                int ngx_http_lua_ffi_ssl_clear_certs(void *r, char **err);
+            ]]
+
+            local errmsg = ffi.new("char *[1]")
+
+            local r = require "resty.core.base" .get_request()
+            if not r then
+                ngx.log(ngx.ERR, "no request found")
+                return
+            end
+
+            ffi.C.ngx_http_lua_ffi_ssl_clear_certs(r, errmsg)
+
+            local f = assert(io.open("t/cert/test_passphrase.crt", "rb"))
+            local cert = f:read("*all")
+            f:close()
+
+            local out = ffi.new("char [?]", #cert)
+
+            local rc = ffi.C.ngx_http_lua_ffi_cert_pem_to_der(cert, #cert, out, errmsg)
+            if rc < 1 then
+                ngx.log(ngx.ERR, "failed to parse PEM cert: ",
+                        ffi.string(errmsg[0]))
+                return
+            end
+
+            local cert_der = ffi.string(out, rc)
+
+            local rc = ffi.C.ngx_http_lua_ffi_ssl_set_der_certificate(r, cert_der, #cert_der, errmsg)
+            if rc ~= 0 then
+                ngx.log(ngx.ERR, "failed to set DER cert: ",
+                        ffi.string(errmsg[0]))
+                return
+            end
+
+            f = assert(io.open("t/cert/test_passphrase.key", "rb"))
+            local pkey = f:read("*all")
+            f:close()
+
+            local passphrase = "123456"
+
+            out = ffi.new("char [?]", #pkey)
+
+            local rc = ffi.C.ngx_http_lua_ffi_priv_key_pem_to_der(pkey, #pkey, passphrase, out, errmsg)
+            if rc < 1 then
+                ngx.log(ngx.ERR, "failed to parse PEM priv key: ",
+                        ffi.string(errmsg[0]))
+                return
+            end
+
+            local pkey_der = ffi.string(out, rc)
+
+            local rc = ffi.C.ngx_http_lua_ffi_ssl_set_der_private_key(r, pkey_der, #pkey_der, errmsg)
+            if rc ~= 0 then
+                ngx.log(ngx.ERR, "failed to set DER priv key: ",
+                        ffi.string(errmsg[0]))
+                return
+            end
+        }
+
+        ssl_certificate ../../cert/test2.crt;
+        ssl_certificate_key ../../cert/test2.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_passphrase.crt;
+
+    location /t {
+        content_by_lua_block {
+            do
+                local sock = ngx.socket.tcp()
+
+                sock:settimeout(2000)
+
+                local ok, err = sock:connect("unix:$TEST_NGINX_HTML_DIR/nginx.sock")
+                if not ok then
+                    ngx.say("failed to connect: ", err)
+                    return
+                end
+
+                ngx.say("connected: ", ok)
+
+                local sess, err = sock:sslhandshake(nil, "test.com", false)
+                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 recieve 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
+lua ssl server name: "test.com"
+
+--- no_error_log
+[error]
+[alert]

t/cert/test_passphrase.crt

@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

t/cert/test_passphrase.key

@@ -0,0 +1,18 @@
+-----BEGIN RSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: DES-EDE3-CBC,679ACC8E69ACAA92
+
+Ssrjp3VU4somCNPiXkWqcudDnvnwbyj/Q0pS07at3lXKbhQSgI1Tzhg9Pm3BXXj5
+mkLdeGG5ocrj1Q9dhtmZgZeHHQIiynZBhjBu1Y+HPef8jXOWLrCOi8EKiWkJ2qG3
+V1KFM/95CcDt0mRLykUXEL3IpUst05SFb9XwiLokB7ypeu3NhgNUHjL6G+ubB4ri
+TOUjCW4pEoNHjdC22IiqSncwCVhluYSGhr6ktHKehZMhYIXmL1wmSLdhTlsPXCQl
+xvYILQ2vJcKIR1BkeYYPD/OQC6zCZlXIErzfgeZiz2+NTudKYpb9VmsQKsO+R8L7
+tZ/fNaR0vk8bbimMHgStAV4acVsC/7WxsqOjMJ8VTq1iqhYPl6N7kRdR3H3kSSOm
+cN9T3SrOHDVaHbnWgToaOE4mKFjvFSLIOcWgus0iOHWXmY+SLG+Ndag3oVB6R9oB
+cAHX19mq99+GhzA8IV4I0En2UCKQhnGPvkM+9mcCDxhRETlwncDjlMGOHpQ65J9r
+eReVPIpnDkvHxPGTtsR3ZHTdWTZb+C0W2N3QIlJKrOzxFmfoj++yG3tMX42aDY0g
+DVkrXgcKobiWN0AVrJNAwfG7uObKSCFYgz/0RRMCO4cjXRW99nxdjVDZhyc6R0Te
+jzuF04okkOLNb25n2hP+yIULrn+6Nv/uHtFI0j0n3hOzcKh//dNbACSAKgkHni9g
+JKDFJXgLJxf+Wc3So0DF9gYMKJJ+WbcdVT9gkC7RyQHlC90Pn7kNXzHr0ZawUsNI
+ZxSkL4dMhYAfA4lUBJbOkwbSurv97LinOSRffpM0Nmf7VNw/Ue15eg==
+-----END RSA PRIVATE KEY-----