src/utils/browser-wpadebug.c

   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
  17 struct browser_data {
  18         int success;
  19 };
  20
  21
  22 static 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
  30 static 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
  66 int 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                 perror("fork");
  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[12];
 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] = NULL;
 113
 114                 execv("/system/bin/am", argv);
 115                 perror("execv");
 116                 exit(0);
 117                 return -1;
 118         }
 119
 120         eloop_register_timeout(300, 0, browser_timeout, &data, NULL);
 121         eloop_run();
 122         eloop_cancel_timeout(browser_timeout, &data, NULL);
 123         http_server_deinit(http);
 124         eloop_destroy();
 125
 126         wpa_printf(MSG_INFO, "Closing Android browser");
 127         if (os_exec("/system/bin/am",
 128                     "start -a android.action.MAIN "
 129                     "-c android.intent.category.LAUNCHER "
 130                     "-n w1.fi.wpadebug/.WpaWebViewActivity "
 131                     "-e w1.fi.wpadebug.URL FINISH", 1) != 0) {
 132                 wpa_printf(MSG_INFO, "Failed to close wpadebug browser");
 133         }
 134
 135         return data.success;
 136 }