Fetch: QuickJS support.

Based on ngx_js_http.c.

Author: hongzhidao

Diff for: nginx/config

@@ -156,6 +156,7 @@ NJS_ENGINE_LIB="$ngx_addon_dir/../build/libnjs.a"
 if [ "$NJS_HAVE_QUICKJS" = "YES" ];  then
     NJS_ENGINE_DEP="$ngx_addon_dir/../build/libqjs.a"
     NJS_ENGINE_LIB="$ngx_addon_dir/../build/libnjs.a $ngx_addon_dir/../build/libqjs.a"
+    QJS_SRCS="$QJS_SRCS $ngx_addon_dir/ngx_qjs_fetch.c"
 fi
 
 if [ $HTTP != NO ]; then

Diff for: nginx/ngx_http_js_module.c

@@ -1133,6 +1133,9 @@ static JSClassDef ngx_http_qjs_headers_out_class = {
 qjs_module_t *njs_http_qjs_addon_modules[] = {
     &ngx_qjs_ngx_module,
     &ngx_qjs_ngx_shared_dict_module,
+#ifdef NJS_HAVE_QUICKJS
+    &ngx_qjs_ngx_fetch_module,
+#endif
     /*
      * Shared addons should be in the same order and the same positions
      * in all nginx modules.

Diff for: nginx/ngx_js.c

@@ -436,6 +436,7 @@ static const JSCFunctionListEntry ngx_qjs_ext_ngx[] = {
     JS_CGETSET_MAGIC_DEF("ERR", ngx_qjs_ext_constant_integer, NULL,
                          NGX_LOG_ERR),
     JS_CGETSET_DEF("error_log_path", ngx_qjs_ext_error_log_path, NULL),
+    JS_CFUNC_DEF("fetch", 2, ngx_qjs_ext_fetch),
     JS_CGETSET_MAGIC_DEF("INFO", ngx_qjs_ext_constant_integer, NULL,
                          NGX_LOG_INFO),
     JS_CFUNC_MAGIC_DEF("log", 1, ngx_qjs_ext_log, 0),
@@ -1502,6 +1503,31 @@ ngx_qjs_string(JSContext *cx, JSValueConst val, ngx_str_t *dst)
 }
 
 
+int
+ngx_qjs_array_length(JSContext *cx, uint32_t *plen, JSValueConst arr)
+{
+    int       ret;
+    JSValue   value;
+    uint32_t  len;
+
+    value = JS_GetPropertyStr(cx, arr, "length");
+    if (JS_IsException(value)) {
+        return -1;
+    }
+
+    ret = JS_ToUint32(cx, &len, value);
+    JS_FreeValue(cx, value);
+
+    if (ret) {
+        return -1;
+    }
+
+    *plen = len;
+
+    return 0;
+}
+
+
 static void
 ngx_qjs_timer_handler(ngx_event_t *ev)
 {

Diff for: nginx/ngx_js.h

@@ -63,6 +63,9 @@
 #define NGX_QJS_CLASS_ID_SHARED (NGX_QJS_CLASS_ID_OFFSET + 11)
 #define NGX_QJS_CLASS_ID_SHARED_DICT (NGX_QJS_CLASS_ID_OFFSET + 12)
 #define NGX_QJS_CLASS_ID_SHARED_DICT_ERROR (NGX_QJS_CLASS_ID_OFFSET + 13)
+#define NGX_QJS_CLASS_ID_FETCH_HEADERS (NGX_QJS_CLASS_ID_OFFSET + 14)
+#define NGX_QJS_CLASS_ID_FETCH_REQUEST (NGX_QJS_CLASS_ID_OFFSET + 15)
+#define NGX_QJS_CLASS_ID_FETCH_RESPONSE (NGX_QJS_CLASS_ID_OFFSET + 16)
 
 
 typedef struct ngx_js_loc_conf_s ngx_js_loc_conf_t;
@@ -345,6 +348,10 @@ ngx_int_t ngx_qjs_call(JSContext *cx, JSValue function, JSValue *argv,
 ngx_int_t ngx_qjs_exception(ngx_engine_t *e, ngx_str_t *s);
 ngx_int_t ngx_qjs_integer(JSContext *cx, JSValueConst val, ngx_int_t *n);
 ngx_int_t ngx_qjs_string(JSContext *cx, JSValueConst val, ngx_str_t *str);
+int ngx_qjs_array_length(JSContext *cx, uint32_t *plen, JSValueConst arr);
+
+JSValue ngx_qjs_ext_fetch(JSContext *cx, JSValueConst this_val, int argc,
+     JSValueConst *argv);
 
 #define ngx_qjs_prop(cx, type, start, len)                                   \
     ((type == NGX_JS_STRING) ? qjs_string_create(cx, start, len)             \
@@ -382,6 +389,7 @@ extern qjs_module_t  qjs_xml_module;
 extern qjs_module_t  qjs_zlib_module;
 extern qjs_module_t  ngx_qjs_ngx_module;
 extern qjs_module_t  ngx_qjs_ngx_shared_dict_module;
+extern qjs_module_t  ngx_qjs_ngx_fetch_module;
 
 #endif