HS 2.0R2: Add wrapper for system browser

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

src/utils/browser-system.c

@@ -0,0 +1,112 @@
+/*
+ * Hotspot 2.0 client - Web browser using system browser
+ * Copyright (c) 2013, Qualcomm Atheros, Inc.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "utils/eloop.h"
+#include "wps/http_server.h"
+#include "browser.h"
+
+
+struct browser_data {
+	int success;
+};
+
+
+static void browser_timeout(void *eloop_data, void *user_ctx)
+{
+	wpa_printf(MSG_INFO, "Timeout on waiting browser interaction to "
+		   "complete");
+	eloop_terminate();
+}
+
+
+static void http_req(void *ctx, struct http_request *req)
+{
+	struct browser_data *data = ctx;
+	struct wpabuf *resp;
+	const char *url;
+	int done = 0;
+
+	url = http_request_get_uri(req);
+	wpa_printf(MSG_INFO, "Browser response received: %s", url);
+
+	if (os_strcmp(url, "/") == 0) {
+		data->success = 1;
+		done = 1;
+	} else if (os_strncmp(url, "/osu/", 5) == 0) {
+		data->success = atoi(url + 5);
+		done = 1;
+	}
+
+	resp = wpabuf_alloc(1);
+	if (resp == NULL) {
+		http_request_deinit(req);
+		if (done)
+			eloop_terminate();
+		return;
+	}
+
+	if (done) {
+		eloop_cancel_timeout(browser_timeout, NULL, NULL);
+		eloop_register_timeout(0, 500000, browser_timeout, &data, NULL);
+	}
+
+	http_request_send_and_deinit(req, resp);
+}
+
+
+int hs20_web_browser(const char *url)
+{
+	char cmd[2000];
+	int ret;
+	struct http_server *http;
+	struct in_addr addr;
+	struct browser_data data;
+
+	wpa_printf(MSG_INFO, "Launching Android browser to %s", url);
+
+	os_memset(&data, 0, sizeof(data));
+
+	ret = os_snprintf(cmd, sizeof(cmd), "x-www-browser '%s' &", url);
+	if (ret < 0 || (size_t) ret >= sizeof(cmd)) {
+		wpa_printf(MSG_ERROR, "Too long URL");
+		return -1;
+	}
+
+	if (eloop_init() < 0) {
+		wpa_printf(MSG_ERROR, "eloop_init failed");
+		return -1;
+	}
+	addr.s_addr = htonl((127 << 24) | 1);
+	http = http_server_init(&addr, 12345, http_req, &data);
+	if (http == NULL) {
+		wpa_printf(MSG_ERROR, "http_server_init failed");
+		eloop_destroy();
+		return -1;
+	}
+
+	if (system(cmd) != 0) {
+		wpa_printf(MSG_INFO, "Failed to launch browser");
+		eloop_cancel_timeout(browser_timeout, NULL, NULL);
+		http_server_deinit(http);
+		eloop_destroy();
+		return -1;
+	}
+
+	eloop_register_timeout(120, 0, browser_timeout, &data, NULL);
+	eloop_run();
+	eloop_cancel_timeout(browser_timeout, &data, NULL);
+	http_server_deinit(http);
+	eloop_destroy();
+
+	/* TODO: Close browser */
+
+	return data.success;
+}