1/*
2 * Hotspot 2.0 client - Web browser using system browser
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(1);
49	if (resp == NULL) {
50		http_request_deinit(req);
51		if (done)
52			eloop_terminate();
53		return;
54	}
55
56	if (done) {
57		eloop_cancel_timeout(browser_timeout, NULL, NULL);
58		eloop_register_timeout(0, 500000, browser_timeout, &data, NULL);
59	}
60
61	http_request_send_and_deinit(req, resp);
62}
63
64
65int hs20_web_browser(const char *url)
66{
67	struct http_server *http;
68	struct in_addr addr;
69	struct browser_data data;
70	pid_t pid;
71
72	wpa_printf(MSG_INFO, "Launching system browser to %s", url);
73
74	os_memset(&data, 0, sizeof(data));
75
76	if (eloop_init() < 0) {
77		wpa_printf(MSG_ERROR, "eloop_init failed");
78		return -1;
79	}
80	addr.s_addr = htonl((127 << 24) | 1);
81	http = http_server_init(&addr, 12345, http_req, &data);
82	if (http == NULL) {
83		wpa_printf(MSG_ERROR, "http_server_init failed");
84		eloop_destroy();
85		return -1;
86	}
87
88	pid = fork();
89	if (pid < 0) {
90		wpa_printf(MSG_ERROR, "fork: %s", strerror(errno));
91		http_server_deinit(http);
92		eloop_destroy();
93		return -1;
94	}
95
96	if (pid == 0) {
97		/* run the external command in the child process */
98		char *argv[3];
99
100		argv[0] = "browser-system";
101		argv[1] = (void *) url;
102		argv[2] = NULL;
103
104		execv("/usr/bin/x-www-browser", argv);
105		wpa_printf(MSG_ERROR, "execv: %s", strerror(errno));
106		exit(0);
107		return -1;
108	}
109
110	eloop_register_timeout(120, 0, browser_timeout, &data, NULL);
111	eloop_run();
112	eloop_cancel_timeout(browser_timeout, &data, NULL);
113	http_server_deinit(http);
114	eloop_destroy();
115
116	/* TODO: Close browser */
117
118	return data.success;
119}
120