browser-wpadebug.c revision ebd93af924f6e54fb4982b3312ff875a4896b62b 
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, "HTTP/1.1\r\n\r\nUser 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	struct http_server *http;
69	struct in_addr addr;
70	struct browser_data data;
71	pid_t pid;
72
73	wpa_printf(MSG_INFO, "Launching wpadebug browser to %s", url);
74
75	os_memset(&data, 0, sizeof(data));
76
77	if (eloop_init() < 0) {
78		wpa_printf(MSG_ERROR, "eloop_init failed");
79		return -1;
80	}
81	addr.s_addr = htonl((127 << 24) | 1);
82	http = http_server_init(&addr, 12345, http_req, &data);
83	if (http == NULL) {
84		wpa_printf(MSG_ERROR, "http_server_init failed");
85		eloop_destroy();
86		return -1;
87	}
88
89	pid = fork();
90	if (pid < 0) {
91		wpa_printf(MSG_ERROR, "fork: %s", strerror(errno));
92		http_server_deinit(http);
93		eloop_destroy();
94		return -1;
95	}
96
97	if (pid == 0) {
98		/* run the external command in the child process */
99		char *argv[14];
100
101		argv[0] = "browser-wpadebug";
102		argv[1] = "start";
103		argv[2] = "-a";
104		argv[3] = "android.action.MAIN";
105		argv[4] = "-c";
106		argv[5] = "android.intent.category.LAUNCHER";
107		argv[6] = "-n";
108		argv[7] = "w1.fi.wpadebug/.WpaWebViewActivity";
109		argv[8] = "-e";
110		argv[9] = "w1.fi.wpadebug.URL";
111		argv[10] = (void *) url;
112		argv[11] = "--user";
113		argv[12] = "-3"; /* USER_CURRENT_OR_SELF */
114		argv[13] = NULL;
115
116		execv("/system/bin/am", argv);
117		wpa_printf(MSG_ERROR, "execv: %s", strerror(errno));
118		exit(0);
119		return -1;
120	}
121
122	eloop_register_timeout(300, 0, browser_timeout, &data, NULL);
123	eloop_run();
124	eloop_cancel_timeout(browser_timeout, &data, NULL);
125	http_server_deinit(http);
126	eloop_destroy();
127
128	wpa_printf(MSG_INFO, "Closing Android browser");
129	if (os_exec("/system/bin/am",
130		    "start -a android.action.MAIN "
131		    "-c android.intent.category.LAUNCHER "
132		    "-n w1.fi.wpadebug/.WpaWebViewActivity "
133		    "-e w1.fi.wpadebug.URL FINISH", 1) != 0) {
134		wpa_printf(MSG_INFO, "Failed to close wpadebug browser");
135	}
136
137	return data.success;
138}
139