feat: query params to wasi args

applications/wasm_apps

@@ -1 +1 @@
-Subproject commit 1ae4a32dea4abdb48db079c725862c649fc9b600
+Subproject commit 88e4c441dd3c51bc4035a94a0942495ece7f42a8

runtime/include/http.h

@@ -9,6 +9,9 @@
 #define HTTP_MAX_HEADER_LENGTH       32
 #define HTTP_MAX_HEADER_VALUE_LENGTH 256
 
+#define HTTP_MAX_QUERY_PARAM_COUNT  16
+#define HTTP_MAX_QUERY_PARAM_LENGTH 32
+
 #define HTTP_RESPONSE_200_TEMPLATE \
 	"HTTP/1.1 200 OK\r\n"      \
 	"Server: SLEdge\r\n"       \

runtime/include/http_request.h

@@ -12,12 +12,19 @@ struct http_header {
 	int   value_length;
 };
 
+struct http_query_param {
+	char value[HTTP_MAX_QUERY_PARAM_LENGTH];
+	int  value_length;
+};
+
 struct http_request {
-	struct http_header headers[HTTP_MAX_HEADER_COUNT];
-	int                header_count;
-	char              *body;
-	int                body_length;
-	int                body_read_length; /* How far we've read */
+	struct http_header      headers[HTTP_MAX_HEADER_COUNT];
+	int                     header_count;
+	struct http_query_param query_params[HTTP_MAX_QUERY_PARAM_COUNT];
+	int                     query_params_count;
+	char                   *body;
+	int                     body_length;
+	int                     body_read_length; /* How far we've read */
 
 	/* additional members for http-parser */
 	bool last_was_value; /* http-parser flag used to help the http-parser callbacks differentiate between header

runtime/include/sandbox_receive_request.h

@@ -96,6 +96,14 @@ sandbox_receive_request(struct sandbox *sandbox)
 		request->length += bytes_parsed;
 	}
 
+#ifdef LOG_HTTP_PARSER
+	for (int i = 0; i < sandbox->http_request.query_params_count; i++) {
+		debuglog("Argument %d, Len: %d, %.*s\n", i, sandbox->http_request.query_params[i].value_length,
+		         sandbox->http_request.query_params[i].value_length,
+		         sandbox->http_request.query_params[i].value);
+	}
+#endif
+
 	rc = 0;
 done:
 	return rc;

runtime/src/current_sandbox.c

@@ -166,10 +166,11 @@ current_sandbox_init()
 	wasi_options_init(&options);
 
 	args[0] = sandbox->module->name;
-	for (int i = 0; i < dummy_argc; i++) args[i + 1] = (char *)dummy_argv[i];
+	for (int i = 0; i < sandbox->http_request.query_params_count; i++)
+		args[i + 1] = (char *)sandbox->http_request.query_params[i].value;
 
-	options.argc                                          = dummy_argc + 1;
-	options.argv                                          = &args;
+	options.argc                                          = sandbox->http_request.query_params_count + 1;
+	options.argv                                          = (const char **)&args;
 	sandbox->wasi_context                                 = wasi_context_init(&options);
 	sledge_abi__current_wasm_module_instance.wasi_context = sandbox->wasi_context;
 	assert(sandbox->wasi_context != NULL);

runtime/src/http_parser_settings.c

@@ -30,6 +30,40 @@ http_parser_settings_on_url(http_parser *parser, const char *at, size_t length)
 	debuglog("sandbox: %lu, length: %zu, Content \"%.*s\"\n", sandbox->id, length, (int)length, at);
 #endif
 
+	char *query_params = memchr(at, '?', length);
+
+	if (query_params != NULL) {
+		char *prev = query_params + 1;
+		char *cur  = NULL;
+		while ((cur = strchr(prev, '&')) != NULL
+		       && sandbox->http_request.query_params_count < HTTP_MAX_QUERY_PARAM_COUNT) {
+			cur++;
+			size_t len = cur - prev - 1;
+			sandbox->http_request.query_params[sandbox->http_request.query_params_count].value_length =
+			  len < HTTP_MAX_QUERY_PARAM_LENGTH - 1 ? len : HTTP_MAX_QUERY_PARAM_LENGTH - 1;
+
+			strncpy(sandbox->http_request.query_params[sandbox->http_request.query_params_count].value,
+			        prev,
+			        sandbox->http_request.query_params[sandbox->http_request.query_params_count]
+			          .value_length);
+
+			sandbox->http_request.query_params_count++;
+			prev = cur;
+		}
+		if (prev != NULL && sandbox->http_request.query_params_count < HTTP_MAX_QUERY_PARAM_COUNT) {
+			size_t len = &at[length] - prev;
+			sandbox->http_request.query_params[sandbox->http_request.query_params_count].value_length =
+			  len < HTTP_MAX_QUERY_PARAM_LENGTH - 1 ? len : HTTP_MAX_QUERY_PARAM_LENGTH - 1;
+
+			strncpy(sandbox->http_request.query_params[sandbox->http_request.query_params_count].value,
+			        prev,
+			        sandbox->http_request.query_params[sandbox->http_request.query_params_count]
+			          .value_length);
+
+			sandbox->http_request.query_params_count++;
+		}
+	}
+
 	return 0;
 }