add standalone wifi app

Signed-off-by: srimaldia <hariasti.srimaldia-1@jp.alps.com>

1 files changed, 489 insertions, 0 deletions

diff --git a/wifi-api.c b/wifi-api.c
new file mode 100755
index 0000000..2d9748f
--- /dev/null
+++ b/wifi-api.c
@@ -0,0 +1,489 @@
+/*  Copyright 2016 ALPS ELECTRIC CO., LTD.
+*
+*   Licensed under the Apache License, Version 2.0 (the "License");
+*   you may not use this file except in compliance with the License.
+*   You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+*   Unless required by applicable law or agreed to in writing, software
+*   distributed under the License is distributed on an "AS IS" BASIS,
+*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*   See the License for the specific language governing permissions and
+*   limitations under the License.
+*/
+
+/**
+ * file
+ *
+ * \brief Implementation of WiFi Binder for AGL's App Framework
+ *
+ * \author ALPS Electric
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <json-c/json.h>
+#include <afb/afb-binding.h>
+
+#include "wifi-api.h"
+#include "wifi-connman.h"
+
+/*
+ * the interface to afb-daemon
+ */
+const struct afb_binding_interface *afbitf;
+
+static int need_password_flag = 0;
+static int password_not_correct_flag = 0;
+
+char *passkey;
+callback ptr_my_callback;
+
+GSList *wifi_list = NULL;
+
+/**
+ * \brief Read out the passkey from the use and pass it to Agent
+ *
+ * \todo Since I do not know how to subscribe for the events from framework,
+ *  it is necessary first to register the password http://IP_ADDRESS:PORT/api/wifi-manager/security?passkey=mypassword.
+ *  Then this function is called automatically.
+ *
+ *
+ * */
+void passkey_inserted(void) {
+
+	printf("Passkey inserted: %s\n", passkey);
+
+	if (passkey != NULL) {
+
+		registerPasskey(passkey);
+	} else {
+		printf("Please enter the password first\n");
+
+	}
+}
+
+/**
+ * \brief Notify user that password is necessary
+ *
+ * This function is called from the registered agent on RequestInput() call.
+ * \todo Subscribe for this event from GUI.
+ *
+ * */
+void ask_for_passkey(int password_rejected_flag) {
+	//TODO: show network we are asking password for
+	printf("Insert passkey.\n");
+
+	if (!password_rejected_flag) {
+		need_password_flag = 1;
+		password_not_correct_flag = 0;
+		//sleep(1);
+		passkey_inserted();
+
+	}
+
+	else if (password_rejected_flag) {
+		need_password_flag = 1;
+		printf("Password not correct!\n");
+
+	}
+
+}
+
+/**
+ * \brief Insert passkey that will be used for connections to secured AP.
+ *
+ * \TODO Only temporary, user should enter the password on ask_for_passkey() callback
+ *
+ * */
+void wifi_insertpasskey(struct afb_req request) {
+
+	const char *passkey_from_user;
+
+	/* retrieves the argument, expects password string */
+	passkey_from_user = afb_req_value(request, "passkey");
+
+	if (passkey_from_user == NULL) {
+		//TODO:better error message
+		afb_req_fail(request, "failed", "specify a security key");
+
+	} else {
+
+		passkey = g_try_malloc0(256);
+		strcpy(passkey, passkey_from_user);
+		printf("Passkey is %s\n", passkey);
+
+	}
+
+	afb_req_success(request, NULL, NULL);
+}
+
+/**
+ * \brief initialize the binder and activates the WiFi HW, should be called first
+ *
+ * This will fail if
+ * 	- agent for handling password requests cannot be registered
+ * 	- some error is returned from connman
+ *
+ *
+ * \return result of the request, either "success" or "failed" with description
+ */
+static void wifi_activate(struct afb_req request) /*AFB_SESSION_CHECK*/
+{
+	json_object *jresp;
+	GError *error = NULL;
+
+	if (ptr_my_callback == NULL) {
+
+		printf("Registering callback\n");
+
+		ptr_my_callback = ask_for_passkey;
+		register_callback(ptr_my_callback);
+
+	}
+
+	jresp = json_object_new_object();
+	json_object_object_add(jresp, "activation", json_object_new_string("on"));
+
+	error = do_wifiActivate();
+
+	if (error == NULL) {
+
+		afb_req_success(request, jresp, "Wi-Fi - Activated");
+
+	} else
+
+		afb_req_fail(request, "failed", error->message);
+
+}
+
+/**
+ * \brief deinitialize the binder and activates the WiFi HW
+ *
+ * This will fail if
+ * 	- agent for handling password requests cannot be unregistered
+ * 	- some error is returned from connman
+ *
+ *
+ * \return result of the request, either "success" or "failed" with description
+ */
+static void wifi_deactivate(struct afb_req request) /*AFB_SESSION_CHECK*/
+{
+
+	json_object *jresp;
+	GError *error = NULL;
+
+	ptr_my_callback = NULL;
+
+	jresp = json_object_new_object();
+	json_object_object_add(jresp, "deactivation", json_object_new_string("on"));
+
+	error = do_wifiDeactivate();
+
+	if (error == NULL) {
+
+		afb_req_success(request, jresp, "Wi-Fi - Activated");
+
+	} else
+
+		afb_req_fail(request, "failed", error->message);
+}
+
+/**
+ * \brief starts scan
+ *
+ * \return result of the request, either "success" or "failed" with description
+ */
+void wifi_scan(struct afb_req request) /*AFB_SESSION_NONE*/
+{
+	GError *error = NULL;
+
+	error = do_wifiScan();
+
+	if (error == NULL) {
+
+		afb_req_success(request, NULL, "Wi-Fi - Scan success");
+
+	} else
+
+		afb_req_fail(request, "failed", error->message);
+
+}
+
+/**
+ * \brief return network list
+ *
+ *
+ * \return result of the request, either "success" or "failed" with description
+ */
+void wifi_scanResult(struct afb_req request) /*AFB_SESSION_CHECK*/
+{
+	struct wifi_profile_info *wifiProfile = NULL;
+	GSList *list = NULL;
+	GSList *holdMe = NULL;
+	wifi_list = NULL;
+	char *essid = NULL;
+	char *address = NULL;
+	char *security = NULL;
+	char *state = NULL;
+	int strength = 0;
+	int number = 0;
+	GError *error = NULL;
+
+	error = do_displayScan(&wifi_list); /*Get wifi scan list*/
+	if (error == NULL) {
+		json_object *my_array = json_object_new_array();
+
+		for (list = wifi_list; list; list = list->next) { /*extract wifi scan result*/
+			wifiProfile = (struct wifi_profile_info *) list->data;
+			security = wifiProfile->Security.sec_type;
+			strength = wifiProfile->Strength;
+			//if (essid == NULL || security == NULL)
+			//	continue;
+
+			essid = wifiProfile->ESSID == NULL ?
+					"HiddenSSID" : wifiProfile->ESSID;
+			address =
+					wifiProfile->wifiNetwork.IPaddress == NULL ?
+							"unsigned" : wifiProfile->wifiNetwork.IPaddress;
+			state = wifiProfile->state;
+			//TODO: is there a case when security is NULL?
+
+			json_object *int1 = json_object_new_int(number);
+			json_object *int2 = json_object_new_int(strength);
+			json_object *jstring1 = json_object_new_string(essid);
+			json_object *jstring2 = json_object_new_string(security);
+			json_object *jstring3 = json_object_new_string(address);
+			json_object *jstring4 = json_object_new_string(state);
+
+			json_object *jresp = json_object_new_object();
+			json_object_object_add(jresp, "Number", int1);
+			json_object_object_add(jresp, "Strength", int2);
+			json_object_object_add(jresp, "ESSID", jstring1);
+			json_object_object_add(jresp, "Security", jstring2);
+			json_object_object_add(jresp, "IPAddress", jstring3);
+			json_object_object_add(jresp, "State", jstring4);
+
+			printf("The object json: %s\n", json_object_to_json_string(jresp));
+			/*input each scan result into my_array*/
+			json_object_array_add(my_array, jresp);
+			number += 1;
+		}
+		while (list != NULL) {
+			printf("Should be freed");
+			holdMe = list->next;
+			g_free(list);
+			list = holdMe;
+		}
+		afb_req_success(request, my_array, "Wi-Fi - Scan Result is Displayed");
+	} else
+		afb_req_fail(request, "failed", error->message);
+}
+
+/**
+ * \brief connects to network
+ *
+ * \param[in] request number of network to connect to
+ *
+ *	 specify number of network to connect to obtained by scan_result() like this,
+ *	 http://IP_ADDRESS:PORT/api/wifi-manager/connect?network=1
+ */
+void wifi_connect(struct afb_req request) {
+
+	struct wifi_profile_info *wifiProfileToConnect = NULL;
+
+	const char *network;
+	int network_index = 0;
+	GError *error = NULL;
+	GSList *item = NULL;
+
+	/* retrieves the argument, expects the network number */
+	network = afb_req_value(request, "network");
+
+	if (network == NULL)
+		//TODO:better error message
+		afb_req_fail(request, "failed",
+				"specify a network number to connect to");
+
+	else {
+		network_index = atoi(network);
+		printf("Joining network number %d\n", network_index);
+
+	}
+
+	//get information about desired network
+	item = g_slist_nth_data(wifi_list, network_index);
+
+	if (item == NULL) {
+		//Index starts from 1
+		printf("Network with number %d not found.\n", network_index + 1);
+		//TODO:better error message
+		afb_req_fail(request, "failed", "bad arguments");
+	}
+
+	else {
+		wifiProfileToConnect = (struct wifi_profile_info *) item;
+		printf("Name: %s, strength: %d, %s\n", wifiProfileToConnect->ESSID,
+				wifiProfileToConnect->Strength,
+				wifiProfileToConnect->NetworkPath);
+		//printf ("Connecting to %s\n",  wifiProfileToConnect->NetworkPath);
+	}
+	error = do_connectNetwork(wifiProfileToConnect->NetworkPath);
+
+	if (error == NULL)
+		afb_req_success(request, NULL, NULL);
+
+	else if (password_not_correct_flag) {
+		need_password_flag = 0;
+		password_not_correct_flag = 0;
+		afb_req_fail(request, "password-incorrect", NULL);
+	} else if (need_password_flag) {
+		need_password_flag = 0;
+		afb_req_fail(request, "need-password", NULL);
+
+	} else
+		afb_req_fail(request, "failed", error->message);
+}
+
+/**
+ * \brief disconnect from network
+ *
+ * \param[in] request number of network to disconnect from
+ *
+ *	 specify number of network to disconnect from obtained by scan_result() like this,
+ *	 http://IP_ADDRESS:PORT/api/wifi-manager/discnnect?network=1
+ */
+void wifi_disconnect(struct afb_req request) {
+
+	struct wifi_profile_info *wifiProfileToConnect = NULL;
+
+	const char *network;
+	int network_index = 0;
+	GError *error = NULL;
+	GSList *item = NULL;
+
+	/* retrieves the argument, expects the network number */
+	network = afb_req_value(request, "network");
+
+	if (network == NULL)
+		//TODO:better error message
+		afb_req_fail(request, "failed",
+				"specify a network number to disconnect from");
+
+	else {
+		network_index = atoi(network);
+		printf("Joining network number %d\n", network_index);
+
+	}
+
+	//get information about desired network
+	item = g_slist_nth_data(wifi_list, network_index);
+
+	if (item == NULL) {
+		//Index starts from 1
+		printf("Network with number %d not found.\n", network_index + 1);
+		//TODO:better error message
+		afb_req_fail(request, "failed", "bad arguments");
+	}
+
+	else {
+		wifiProfileToConnect = (struct wifi_profile_info *) item;
+		printf("Name: %s, strength: %d, %s\n", wifiProfileToConnect->ESSID,
+				wifiProfileToConnect->Strength,
+				wifiProfileToConnect->NetworkPath);
+		//printf ("Connecting to %s\n",  wifiProfileToConnect->NetworkPath);
+	}
+	error = do_disconnectNetwork(wifiProfileToConnect->NetworkPath);
+
+	if (error == NULL)
+		afb_req_success(request, NULL, NULL);
+	else
+		afb_req_fail(request, "failed", error->message);
+}
+
+/**
+ * \brief return  current status of connection
+ *
+ * \return result of the request, either "success" or "failed" with description
+ */
+void wifi_status(struct afb_req request) {
+	int error = 0;
+	wifi_list = NULL;
+	struct wifiStatus *status;
+	json_object *jresp = json_object_new_object();
+
+	status = g_try_malloc0(sizeof(struct wifiStatus));
+	error = wifi_state(status); /*get current status of power and connection*/
+	if (!error) {
+		if (status->state == 0) {/*Wi-Fi is OFF*/
+			json_object_object_add(jresp, "Power",
+					json_object_new_string("OFF"));
+			//json_object_object_add(jresp, "Connection", json_object_new_string("Disconnected"));
+			printf("Wi-Fi OFF\n");
+		} else {/*Wi-Fi is ON*/
+			json_object_object_add(jresp, "Power",
+					json_object_new_string("ON"));
+			if (status->connected == 0) {/*disconnected*/
+				json_object_object_add(jresp, "Connection",
+						json_object_new_string("Disconnected"));
+				printf("Wi-Fi ON - Disconnected \n");
+			} else {/*Connected*/
+				json_object_object_add(jresp, "Connection",
+						json_object_new_string("Connected"));
+				printf("Wi-Fi ON - Connected \n");
+			}
+		}
+		afb_req_success(request, jresp, "Wi-Fi - Connection Status Checked");
+	} else {
+		afb_req_fail(request, "failed", "Wi-Fi - Connection Status unknown");
+	}
+}
+
+void wifi_reconnect() {
+	/*TBD*/
+}
+
+
+
+/*
+ * array of the verbs exported to afb-daemon
+ */
+static const struct afb_verb_desc_v1 binding_verbs[] = {
+/* VERB'S NAME     			SESSION MANAGEMENT          	FUNCTION TO CALL  					SHORT DESCRIPTION */
+{ .name = "activate", 	.session = AFB_SESSION_NONE, 		.callback = wifi_activate, 			.info = "Activate Wi-Fi" },
+{ .name = "deactivate", .session = AFB_SESSION_NONE, 		.callback = wifi_deactivate, 		.info ="Deactivate Wi-Fi" },
+{ .name = "scan", 		.session = AFB_SESSION_NONE,		.callback = wifi_scan, 				.info = "Scanning Wi-Fi" },
+{ .name = "scan_result",.session = AFB_SESSION_NONE, 		.callback = wifi_scanResult,		.info = "Get scan result Wi-Fi" },
+{ .name = "connect", 	.session = AFB_SESSION_NONE, 		.callback = wifi_connect, 			.info ="Connecting to Access Point" },
+{ .name = "status", 	.session = AFB_SESSION_NONE, 		.callback = wifi_status, 			.info ="Check connection status" },
+{ .name = "disconnect", .session = AFB_SESSION_NONE, 		.callback = wifi_disconnect, 		.info ="Disconnecting connection" },
+{ .name = "reconnect", 	.session = AFB_SESSION_NONE, 		.callback = wifi_reconnect, 		.info ="Reconnecting to Access Point" },
+{ .name = "security", 	.session = AFB_SESSION_NONE, 		.callback = wifi_insertpasskey, 	.info ="Insert passkey" },
+
+{ .name = NULL } /* marker for end of the array */
+};
+
+/*
+ * description of the binding for afb-daemon
+ */
+static const struct afb_binding binding_description = {
+/* description conforms to VERSION 1 */
+.type = AFB_BINDING_VERSION_1, .v1 = { /* fills the v1 field of the union when AFB_BINDING_VERSION_1 */
+.prefix = "wifi-manager", /* the API name (or binding name or prefix) */
+.info = "wifi API", /* short description of of the binding */
+.verbs = binding_verbs /* the array describing the verbs of the API */
+} };
+
+/*
+ * activation function for registering the binding called by afb-daemon
+ */
+const struct afb_binding *afbBindingV1Register(
+		const struct afb_binding_interface *itf) {
+	afbitf = itf;         // records the interface for accessing afb-daemon
+	return &binding_description;  // returns the description of the binding
+}
+