hostap/src/utils/browser-wpadebug.c
Jouni Malinen c94382259d browser-wpadebug: Use execv() directly instead of os_exec()
This allows the URL to be passed as a single argument to the program
instead of getting split into multiple by os_exec(). This makes the
operation more robust for cases where the URL could have been received
from an external source and could potentially add extra arguments to the
command line.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2014-10-21 23:32:17 +03:00

136 lines
2.9 KiB
C

/*
* Hotspot 2.0 client - Web browser using wpadebug on Android
* 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(100);
if (resp == NULL) {
http_request_deinit(req);
if (done)
eloop_terminate();
return;
}
wpabuf_put_str(resp, "User input completed");
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)
{
struct http_server *http;
struct in_addr addr;
struct browser_data data;
pid_t pid;
wpa_printf(MSG_INFO, "Launching wpadebug browser to %s", url);
os_memset(&data, 0, sizeof(data));
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;
}
pid = fork();
if (pid < 0) {
perror("fork");
http_server_deinit(http);
eloop_destroy();
return -1;
}
if (pid == 0) {
/* run the external command in the child process */
char *argv[12];
argv[0] = "browser-wpadebug";
argv[1] = "start";
argv[2] = "-a";
argv[3] = "android.action.MAIN";
argv[4] = "-c";
argv[5] = "android.intent.category.LAUNCHER";
argv[6] = "-n";
argv[7] = "w1.fi.wpadebug/.WpaWebViewActivity";
argv[8] = "-e";
argv[9] = "w1.fi.wpadebug.URL";
argv[10] = (void *) url;
argv[11] = NULL;
execv("/system/bin/am", argv);
perror("execv");
exit(0);
return -1;
}
eloop_register_timeout(300, 0, browser_timeout, &data, NULL);
eloop_run();
eloop_cancel_timeout(browser_timeout, &data, NULL);
http_server_deinit(http);
eloop_destroy();
wpa_printf(MSG_INFO, "Closing Android browser");
if (os_exec("/system/bin/am",
"start -a android.action.MAIN "
"-c android.intent.category.LAUNCHER "
"-n w1.fi.wpadebug/.WpaWebViewActivity "
"-e w1.fi.wpadebug.URL FINISH", 1) != 0) {
wpa_printf(MSG_INFO, "Failed to close wpadebug browser");
}
return data.success;
}