1/*
2 * Hotspot 2.0 client - Web browser using wpadebug on Android
3 * Copyright (c) 2013, Qualcomm Atheros, Inc.
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "utils/eloop.h"
13#include "wps/http_server.h"
14#include "browser.h"
15
16
17struct browser_data {
18	int success;
19};
20
21
22static void browser_timeout(void *eloop_data, void *user_ctx)
23{
24	wpa_printf(MSG_INFO, "Timeout on waiting browser interaction to "
25		   "complete");
26	eloop_terminate();
27}
28
29
30static void http_req(void *ctx, struct http_request *req)
31{
32	struct browser_data *data = ctx;
33	struct wpabuf *resp;
34	const char *url;
35	int done = 0;
36
37	url = http_request_get_uri(req);
38	wpa_printf(MSG_INFO, "Browser response received: %s", url);
39
40	if (os_strcmp(url, "/") == 0) {
41		data->success = 1;
42		done = 1;
43	} else if (os_strncmp(url, "/osu/", 5) == 0) {
44		data->success = atoi(url + 5);
45		done = 1;
46	}
47
48	resp = wpabuf_alloc(100);
49	if (resp == NULL) {
50		http_request_deinit(req);
51		if (done)
52			eloop_terminate();
53		return;
54	}
55	wpabuf_put_str(resp, "User input completed");
56
57	if (done) {
58		eloop_cancel_timeout(browser_timeout, NULL, NULL);
59		eloop_register_timeout(0, 500000, browser_timeout, &data, NULL);
60	}
61
62	http_request_send_and_deinit(req, resp);
63}
64
65
66int hs20_web_browser(const char *url)
67{
68	char cmd[2000];
69	int ret;
70	struct http_server *http;
71	struct in_addr addr;
72	struct browser_data data;
73
74	wpa_printf(MSG_INFO, "Launching wpadebug browser to %s", url);
75
76	os_memset(&data, 0, sizeof(data));
77
78	ret = os_snprintf(cmd, sizeof(cmd),
79			  "start -a android.action.MAIN "
80			  "-c android.intent.category.LAUNCHER "
81			  "-n w1.fi.wpadebug/.WpaWebViewActivity "
82			  "-e w1.fi.wpadebug.URL '%s'", url);
83	if (ret < 0 || (size_t) ret >= sizeof(cmd)) {
84		wpa_printf(MSG_ERROR, "Too long URL");
85		return -1;
86	}
87
88	if (eloop_init() < 0) {
89		wpa_printf(MSG_ERROR, "eloop_init failed");
90		return -1;
91	}
92	addr.s_addr = htonl((127 << 24) | 1);
93	http = http_server_init(&addr, 12345, http_req, &data);
94	if (http == NULL) {
95		wpa_printf(MSG_ERROR, "http_server_init failed");
96		eloop_destroy();
97		return -1;
98	}
99
100	if (os_exec("/system/bin/am", cmd, 1) != 0) {
101		wpa_printf(MSG_INFO, "Failed to launch wpadebug browser");
102		eloop_cancel_timeout(browser_timeout, NULL, NULL);
103		http_server_deinit(http);
104		eloop_destroy();
105		return -1;
106	}
107
108	eloop_register_timeout(300, 0, browser_timeout, &data, NULL);
109	eloop_run();
110	eloop_cancel_timeout(browser_timeout, &data, NULL);
111	http_server_deinit(http);
112	eloop_destroy();
113
114	wpa_printf(MSG_INFO, "Closing Android browser");
115	if (os_exec("/system/bin/am",
116		    "start -a android.action.MAIN "
117		    "-c android.intent.category.LAUNCHER "
118		    "-n w1.fi.wpadebug/.WpaWebViewActivity "
119		    "-e w1.fi.wpadebug.URL FINISH", 1) != 0) {
120		wpa_printf(MSG_INFO, "Failed to close wpadebug browser");
121	}
122
123	return data.success;
124}
125