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-rw-r--r--src/NotificationProxy.c392
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diff --git a/src/NotificationProxy.c b/src/NotificationProxy.c
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-/*
- * NotificationProxy.c
- * Notification Proxy implementation.
- *
- * Copyright (c) 2009 Nikias Bassen, All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <arpa/inet.h>
-#include <plist/plist.h>
-
-#include "NotificationProxy.h"
-#include "property_list_service.h"
-#include "debug.h"
-
-struct np_thread {
- np_client_t client;
- np_notify_cb_t cbfunc;
-};
-
-/** Locks an NP client, done for thread safety stuff.
- *
- * @param client The NP
- */
-static void np_lock(np_client_t client)
-{
- debug_info("NP: Locked");
- g_mutex_lock(client->mutex);
-}
-
-/** Unlocks an NP client, done for thread safety stuff.
- *
- * @param client The NP
- */
-static void np_unlock(np_client_t client)
-{
- debug_info("NP: Unlocked");
- g_mutex_unlock(client->mutex);
-}
-
-/**
- * Convert a property_list_service_error_t value to an np_error_t value.
- * Used internally to get correct error codes.
- *
- * @param err A property_list_service_error_t error code
- *
- * @return A matching np_error_t error code,
- * NP_E_UNKNOWN_ERROR otherwise.
- */
-static np_error_t np_error(property_list_service_error_t err)
-{
- switch (err) {
- case PROPERTY_LIST_SERVICE_E_SUCCESS:
- return NP_E_SUCCESS;
- case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
- return NP_E_INVALID_ARG;
- case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
- return NP_E_PLIST_ERROR;
- case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
- return NP_E_CONN_FAILED;
- default:
- break;
- }
- return NP_E_UNKNOWN_ERROR;
-}
-
-/** Makes a connection to the NP service on the phone.
- *
- * @param device The device to connect to.
- * @param port Destination port (usually given by lockdownd_start_service).
- * @param client Pointer that will be set to a newly allocated np_client_t
- * upon successful return.
- *
- * @return NP_E_SUCCESS on success, NP_E_INVALID_ARG when device is NULL,
- * or NP_E_CONN_FAILED when the connection to the device could not be
- * established.
- */
-np_error_t np_client_new(iphone_device_t device, uint16_t port, np_client_t *client)
-{
- /* makes sure thread environment is available */
- if (!g_thread_supported())
- g_thread_init(NULL);
-
- if (!device)
- return NP_E_INVALID_ARG;
-
- property_list_service_client_t plistclient = NULL;
- if (property_list_service_client_new(device, port, &plistclient) != PROPERTY_LIST_SERVICE_E_SUCCESS) {
- return NP_E_CONN_FAILED;
- }
-
- np_client_t client_loc = (np_client_t) malloc(sizeof(struct np_client_int));
- client_loc->parent = plistclient;
-
- client_loc->mutex = g_mutex_new();
-
- client_loc->notifier = NULL;
-
- *client = client_loc;
- return NP_E_SUCCESS;
-}
-
-/** Disconnects an NP client from the device.
- *
- * @param client The client to disconnect.
- *
- * @return NP_E_SUCCESS on success, or NP_E_INVALID_ARG when client is NULL.
- */
-np_error_t np_client_free(np_client_t client)
-{
- if (!client)
- return NP_E_INVALID_ARG;
-
- property_list_service_client_free(client->parent);
- client->parent = NULL;
- if (client->notifier) {
- debug_info("joining np callback");
- g_thread_join(client->notifier);
- }
- if (client->mutex) {
- g_mutex_free(client->mutex);
- }
- free(client);
-
- return NP_E_SUCCESS;
-}
-
-/** Sends a notification to the device's Notification Proxy.
- *
- * @param client The client to send to
- * @param notification The notification message to send
- *
- * @return NP_E_SUCCESS on success, or an error returned by np_plist_send
- */
-np_error_t np_post_notification(np_client_t client, const char *notification)
-{
- if (!client || !notification) {
- return NP_E_INVALID_ARG;
- }
- np_lock(client);
-
- plist_t dict = plist_new_dict();
- plist_dict_insert_item(dict,"Command", plist_new_string("PostNotification"));
- plist_dict_insert_item(dict,"Name", plist_new_string(notification));
-
- np_error_t res = np_error(property_list_service_send_xml_plist(client->parent, dict));
- plist_free(dict);
-
- dict = plist_new_dict();
- plist_dict_insert_item(dict,"Command", plist_new_string("Shutdown"));
-
- res = np_error(property_list_service_send_xml_plist(client->parent, dict));
- plist_free(dict);
-
- if (res != NP_E_SUCCESS) {
- debug_info("Error sending XML plist to device!");
- }
-
- np_unlock(client);
- return res;
-}
-
-/** Notifies the iphone to send a notification on the specified event.
- *
- * @param client The client to send to
- * @param notification The notifications that should be observed.
- *
- * @return NP_E_SUCCESS on success, NP_E_INVALID_ARG when client or
- * notification are NULL, or an error returned by np_plist_send.
- */
-np_error_t np_observe_notification( np_client_t client, const char *notification )
-{
- if (!client || !notification) {
- return NP_E_INVALID_ARG;
- }
- np_lock(client);
-
- plist_t dict = plist_new_dict();
- plist_dict_insert_item(dict,"Command", plist_new_string("ObserveNotification"));
- plist_dict_insert_item(dict,"Name", plist_new_string(notification));
-
- np_error_t res = np_error(property_list_service_send_xml_plist(client->parent, dict));
- if (res != NP_E_SUCCESS) {
- debug_info("Error sending XML plist to device!");
- }
- plist_free(dict);
-
- np_unlock(client);
- return res;
-}
-
-/** Notifies the iphone to send a notification on specified events.
- *
- * @param client The client to send to
- * @param notification_spec Specification of the notifications that should be
- * observed. This is expected to be an array of const char* that MUST have a
- * terminating NULL entry.
- *
- * @return NP_E_SUCCESS on success, NP_E_INVALID_ARG when client is null,
- * or an error returned by np_observe_notification.
- */
-np_error_t np_observe_notifications(np_client_t client, const char **notification_spec)
-{
- int i = 0;
- np_error_t res = NP_E_UNKNOWN_ERROR;
- const char **notifications = notification_spec;
-
- if (!client) {
- return NP_E_INVALID_ARG;
- }
-
- if (!notifications) {
- return NP_E_INVALID_ARG;
- }
-
- while (notifications[i]) {
- res = np_observe_notification(client, notifications[i]);
- if (res != NP_E_SUCCESS) {
- break;
- }
- i++;
- }
-
- return res;
-}
-
-/**
- * Checks if a notification has been sent.
- *
- * @param client NP to get a notification from
- * @param notification Pointer to a buffer that will be allocated and filled
- * with the notification that has been received.
- *
- * @return 0 if a notification has been received or nothing has been received,
- * or a negative value if an error occured.
- *
- * @note You probably want to check out np_set_notify_callback
- * @see np_set_notify_callback
- */
-static int np_get_notification(np_client_t client, char **notification)
-{
- int res = 0;
- plist_t dict = NULL;
-
- if (!client || !client->parent || *notification)
- return -1;
-
- np_lock(client);
-
- property_list_service_receive_plist_with_timeout(client->parent, &dict, 500);
- if (!dict) {
- debug_info("NotificationProxy: no notification received!");
- res = 0;
- } else {
- char *cmd_value = NULL;
- plist_t cmd_value_node = plist_dict_get_item(dict, "Command");
-
- if (plist_get_node_type(cmd_value_node) == PLIST_STRING) {
- plist_get_string_val(cmd_value_node, &cmd_value);
- }
-
- if (cmd_value && !strcmp(cmd_value, "RelayNotification")) {
- char *name_value = NULL;
- plist_t name_value_node = plist_dict_get_item(dict, "Name");
-
- if (plist_get_node_type(name_value_node) == PLIST_STRING) {
- plist_get_string_val(name_value_node, &name_value);
- }
-
- res = -2;
- if (name_value_node && name_value) {
- *notification = name_value;
- debug_info("got notification %s\n", __func__, name_value);
- res = 0;
- }
- } else if (cmd_value && !strcmp(cmd_value, "ProxyDeath")) {
- debug_info("ERROR: NotificationProxy died!");
- res = -1;
- } else if (cmd_value) {
- debug_info("unknown NotificationProxy command '%s' received!", cmd_value);
- res = -1;
- } else {
- res = -2;
- }
- if (cmd_value) {
- free(cmd_value);
- }
- plist_free(dict);
- dict = NULL;
- }
-
- np_unlock(client);
-
- return res;
-}
-
-/**
- * Internally used thread function.
- */
-gpointer np_notifier( gpointer arg )
-{
- char *notification = NULL;
- struct np_thread *npt = (struct np_thread*)arg;
-
- if (!npt) return NULL;
-
- debug_info("starting callback.");
- while (npt->client->parent) {
- np_get_notification(npt->client, &notification);
- if (notification) {
- npt->cbfunc(notification);
- free(notification);
- notification = NULL;
- }
- sleep(1);
- }
- if (npt) {
- free(npt);
- }
-
- return NULL;
-}
-
-/**
- * This function allows an application to define a callback function that will
- * be called when a notification has been received.
- * It will start a thread that polls for notifications and calls the callback
- * function if a notification has been received.
- *
- * @param client the NP client
- * @param notify_cb pointer to a callback function or NULL to de-register a
- * previously set callback function.
- *
- * @note Only one callback function can be registered at the same time;
- * any previously set callback function will be removed automatically.
- *
- * @return NP_E_SUCCESS when the callback was successfully registered,
- * NP_E_INVALID_ARG when client is NULL, or NP_E_UNKNOWN_ERROR when
- * the callback thread could no be created.
- */
-np_error_t np_set_notify_callback( np_client_t client, np_notify_cb_t notify_cb )
-{
- if (!client)
- return NP_E_INVALID_ARG;
-
- np_error_t res = NP_E_UNKNOWN_ERROR;
-
- np_lock(client);
- if (client->notifier) {
- debug_info("callback already set, removing\n");
- property_list_service_client_t parent = client->parent;
- client->parent = NULL;
- g_thread_join(client->notifier);
- client->notifier = NULL;
- client->parent = parent;
- }
-
- if (notify_cb) {
- struct np_thread *npt = (struct np_thread*)malloc(sizeof(struct np_thread));
- if (npt) {
- npt->client = client;
- npt->cbfunc = notify_cb;
-
- client->notifier = g_thread_create(np_notifier, npt, TRUE, NULL);
- if (client->notifier) {
- res = NP_E_SUCCESS;
- }
- }
- } else {
- debug_info("no callback set");
- }
- np_unlock(client);
-
- return res;
-}