1 files changed, 740 insertions, 0 deletions
diff --git a/src/installation_proxy.c b/src/installation_proxy.c
new file mode 100644
index 0000000..a99b5cb
--- /dev/null
+++ b/src/installation_proxy.c
@@ -0,0 +1,740 @@
+/*
+ * installation_proxy.c
+ * Installation 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 <stdlib.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <plist/plist.h>
+#include "installation_proxy.h"
+#include "property_list_service.h"
+#include "debug.h"
+struct instproxy_status_data {
+        instproxy_client_t client;
+        instproxy_status_cb_t cbfunc;
+        char *operation;
+};
+/** Locks an installation_proxy client, done for thread safety stuff.
+ *
+ * @param client The installation_proxy client to lock
+ */
+static void instproxy_lock(instproxy_client_t client)
+{
+        debug_info("InstallationProxy: Locked");
+        g_mutex_lock(client->mutex);
+}
+/** Unlocks an installation_proxy client, done for thread safety stuff.
+ * 
+ * @param client The installation_proxy client to lock
+ */
+static void instproxy_unlock(instproxy_client_t client)
+{
+        debug_info("InstallationProxy: Unlocked");
+        g_mutex_unlock(client->mutex);
+}
+/**
+ * Convert a property_list_service_error_t value to an instproxy_error_t value.
+ * Used internally to get correct error codes.
+ *
+ * @param err A property_list_service_error_t error code
+ *
+ * @return A matching instproxy_error_t error code,
+ *     INSTPROXY_E_UNKNOWN_ERROR otherwise.
+ */
+static instproxy_error_t instproxy_error(property_list_service_error_t err)
+{
+        switch (err) {
+                case PROPERTY_LIST_SERVICE_E_SUCCESS:
+                        return INSTPROXY_E_SUCCESS;
+                case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
+                        return INSTPROXY_E_INVALID_ARG;
+                case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
+                        return INSTPROXY_E_PLIST_ERROR;
+                case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
+                        return INSTPROXY_E_CONN_FAILED;
+                default:
+                        break;
+        }
+        return INSTPROXY_E_UNKNOWN_ERROR;
+}
+/**
+ * Creates a new installation_proxy client
+ *
+ * @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
+ *     instproxy_client_t upon successful return.
+ *
+ * @return INSTPROXY_E_SUCCESS on success, or an INSTPROXY_E_* error value
+ *     when an error occured.
+ */
+instproxy_error_t instproxy_client_new(iphone_device_t device, uint16_t port, instproxy_client_t *client)
+{
+        /* makes sure thread environment is available */
+        if (!g_thread_supported())
+                g_thread_init(NULL);
+        if (!device)
+                return INSTPROXY_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 INSTPROXY_E_CONN_FAILED;
+        }
+        instproxy_client_t client_loc = (instproxy_client_t) malloc(sizeof(struct instproxy_client_int));
+        client_loc->parent = plistclient;
+        client_loc->mutex = g_mutex_new();
+        client_loc->status_updater = NULL;
+        *client = client_loc;
+        return INSTPROXY_E_SUCCESS;
+}
+/**
+ * Frees an installation_proxy client.
+ *
+ * @param client The installation_proxy client to free.
+ *
+ * @return INSTPROXY_E_SUCCESS on success
+ *      or INSTPROXY_E_INVALID_ARG if client is NULL.
+ */
+instproxy_error_t instproxy_client_free(instproxy_client_t client)
+{
+        if (!client)
+                return INSTPROXY_E_INVALID_ARG;
+        property_list_service_client_free(client->parent);
+        client->parent = NULL;
+        if (client->status_updater) {
+                debug_info("joining status_updater");
+                g_thread_join(client->status_updater);
+        }
+        if (client->mutex) {
+                g_mutex_free(client->mutex);
+        }
+        free(client);
+        return INSTPROXY_E_SUCCESS;
+}
+/**
+ * List installed applications. This function runs synchronously.
+ *
+ * @param client The connected installation_proxy client
+ * @param apptype The type of applications to list.
+ * @param result Pointer that will be set to a plist that will hold an array
+ *        of PLIST_DICT holding information about the applications found.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ */
+instproxy_error_t instproxy_browse(instproxy_client_t client, instproxy_apptype_t apptype, plist_t *result)
+{
+        if (!client || !client->parent || !result)
+                return INSTPROXY_E_INVALID_ARG;
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        int browsing = 0;
+        plist_t apps_array = NULL;
+        plist_t dict = plist_new_dict();
+        if (apptype != INSTPROXY_APPTYPE_ALL) {
+                plist_t client_opts = plist_new_dict();
+                plist_t p_apptype = NULL;
+                switch (apptype) {
+                        case INSTPROXY_APPTYPE_SYSTEM:
+                                p_apptype = plist_new_string("System");
+                                break;
+                        case INSTPROXY_APPTYPE_USER:
+                                p_apptype = plist_new_string("User");
+                                break;
+                        default:
+                                debug_info("unknown apptype %d given, using INSTPROXY_APPTYPE_USER instead", apptype);
+                                p_apptype = plist_new_string("User");
+                                break;
+                }
+                plist_dict_insert_item(client_opts, "ApplicationType", p_apptype);
+                plist_dict_insert_item(dict, "ClientOptions", client_opts);
+        }
+        plist_dict_insert_item(dict, "Command", plist_new_string("Browse"));
+        instproxy_lock(client);
+        res = instproxy_error(property_list_service_send_xml_plist(client->parent, dict));
+        plist_free(dict);
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not send plist");
+                goto leave_unlock;
+        }
+        apps_array = plist_new_array();
+        do {
+                browsing = 0;
+                dict = NULL;
+                res = instproxy_error(property_list_service_receive_plist(client->parent, &dict));
+                if (res != INSTPROXY_E_SUCCESS) {
+                        break;
+                }
+                if (dict) {
+                        uint64_t i;
+                        uint64_t current_amount = 0;
+                        char *status = NULL;
+                        plist_t camount = plist_dict_get_item(dict, "CurrentAmount");
+                        plist_t pstatus = plist_dict_get_item(dict, "Status");
+                        if (camount) {
+                                plist_get_uint_val(camount, &current_amount);
+                        }
+                        if (current_amount > 0) {
+                                plist_t current_list = plist_dict_get_item(dict, "CurrentList");
+                                for (i = 0; current_list && (i < current_amount); i++) {
+                                        plist_t item = plist_array_get_item(current_list, i);
+                                        plist_array_append_item(apps_array, plist_copy(item));
+                                }
+                        }
+                        if (pstatus) {
+                                plist_get_string_val(pstatus, &status);
+                        }
+                        if (status) {
+                                if (!strcmp(status, "BrowsingApplications")) {
+                                        browsing = 1;
+                                } else if (!strcmp(status, "Complete")) {
+                                        debug_info("Browsing applications completed");
+                                        res = INSTPROXY_E_SUCCESS;
+                                }
+                                free(status);
+                        }
+                        plist_free(dict);
+                }
+        } while (browsing);
+        if (res == INSTPROXY_E_SUCCESS) {
+                *result = apps_array;
+        }
+leave_unlock:
+        instproxy_unlock(client);
+        return res;
+}
+/**
+ * Internally used function that will synchronously receive messages from
+ * the specified installation_proxy until it completes or an error occurs.
+ *
+ * If status_cb is not NULL, the callback function will be called each time
+ * a status update or error message is received.
+ *
+ * @param client The connected installation proxy client
+ * @param status_cb Pointer to a callback function or NULL
+ * @param operation Operation name. Will be passed to the callback function
+ *        in async mode or shown in debug messages in sync mode. 
+ */
+static instproxy_error_t instproxy_perform_operation(instproxy_client_t client, instproxy_status_cb_t status_cb, const char *operation)
+{
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        int ok = 1;
+        plist_t dict = NULL;
+        do {
+                instproxy_lock(client);
+                res = instproxy_error(property_list_service_receive_plist_with_timeout(client->parent, &dict, 30000));
+                instproxy_unlock(client);
+                if (res != INSTPROXY_E_SUCCESS) {
+                        debug_info("could not receive plist, error %d", res);
+                        break;
+                }
+                if (dict) {
+                        /* invoke callback function */
+                        if (status_cb) {
+                                status_cb(operation, dict);
+                        }
+                        /* check for 'Error', so we can abort cleanly */
+                        plist_t err = plist_dict_get_item(dict, "Error");
+                        if (err) {
+#ifndef STRIP_DEBUG_CODE
+                                char *err_msg = NULL;
+                                plist_get_string_val(err, &err_msg);
+                                if (err_msg) {
+                                        debug_info("(%s): ERROR: %s", operation, err_msg);
+                                        free(err_msg);
+                                }
+#endif
+                                ok = 0;
+                                res = INSTPROXY_E_OP_FAILED;
+                        }
+                        /* get 'Status' */
+                        plist_t status = plist_dict_get_item(dict, "Status");
+                        if (status) {
+                                char *status_msg = NULL;
+                                plist_get_string_val(status, &status_msg);
+                                if (status_msg) {
+                                        if (!strcmp(status_msg, "Complete")) {
+                                                ok = 0;
+                                                res = INSTPROXY_E_SUCCESS;
+                                        }
+#ifndef STRIP_DEBUG_CODE
+                                        plist_t npercent = plist_dict_get_item(dict, "PercentComplete");
+                                        if (npercent) {
+                                                uint64_t val = 0;
+                                                int percent;
+                                                plist_get_uint_val(npercent, &val);
+                                                percent = val;
+                                                debug_info("(%s): %s (%d%%)", operation, status_msg, percent);
+                                        } else {
+                                                debug_info("(%s): %s", operation, status_msg);
+                                        }
+#endif
+                                        free(status_msg);
+                                }
+                        }
+                        plist_free(dict);
+                        dict = NULL;
+                }
+        } while (ok && client->parent);
+        return res;
+}
+/**
+ * Internally used status updater thread function that will call the specified
+ * callback function when status update messages (or error messages) are
+ * received.
+ *
+ * @param arg Pointer to an allocated struct instproxy_status_data that holds
+ *     the required data about the connected client and the callback function.
+ *
+ * @return Always NULL.
+ */
+static gpointer instproxy_status_updater(gpointer arg)
+{       
+        struct instproxy_status_data *data = (struct instproxy_status_data*)arg;
+        /* run until the operation is complete or an error occurs */
+        (void)instproxy_perform_operation(data->client, data->cbfunc, data->operation);
+        /* cleanup */
+        instproxy_lock(data->client);
+        debug_info("done, cleaning up.");
+        if (data->operation) {
+            free(data->operation);
+        }
+        data->client->status_updater = NULL;
+        instproxy_unlock(data->client);
+        free(data);
+        return NULL;
+}
+/**
+ * Internally used helper function that creates a status updater thread which
+ * will call the passed callback function when status updates occur.
+ * If status_cb is NULL no thread will be created, but the operation will
+ * run synchronously until it completes or an error occurs.
+ *
+ * @param client The connected installation proxy client
+ * @param status_cb Pointer to a callback function or NULL
+ * @param operation Operation name. Will be passed to the callback function
+ *        in async mode or shown in debug messages in sync mode.
+ *
+ * @return INSTPROXY_E_SUCCESS when the thread was created (async mode), or
+ *         when the operation completed successfully (sync).
+ *         An INSTPROXY_E_* error value is returned if an error occured.
+ */
+static instproxy_error_t instproxy_create_status_updater(instproxy_client_t client, instproxy_status_cb_t status_cb, const char *operation)
+{
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        if (status_cb) {
+                /* async mode */
+                struct instproxy_status_data *data = (struct instproxy_status_data*)malloc(sizeof(struct instproxy_status_data));
+                if (data) {
+                        data->client = client;
+                        data->cbfunc = status_cb;
+                        data->operation = strdup(operation);
+                        client->status_updater = g_thread_create(instproxy_status_updater, data, TRUE, NULL);
+                        if (client->status_updater) {
+                                res = INSTPROXY_E_SUCCESS;
+                        }
+                }
+        } else {
+                /* sync mode */
+                res = instproxy_perform_operation(client, NULL, operation);
+        }
+        return res;
+}
+/**
+ * Internal function used by instproxy_install and instproxy_upgrade.
+ *
+ * @param client The connected installation_proxy client
+ * @param pkg_path Path of the installation package (inside the AFC jail)
+ * @param sinf PLIST_DATA node holding the package's SINF data or NULL.
+ * @param metadata PLIST_DATA node holding the packages's Metadata or NULL.
+ * @param status_cb Callback function for progress and status information. If
+ *        NULL is passed, this function will run synchronously.
+ * @param command The command to execute.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured. 
+ */
+static instproxy_error_t instproxy_install_or_upgrade(instproxy_client_t client, const char *pkg_path, plist_t sinf, plist_t metadata, instproxy_status_cb_t status_cb, const char *command)
+{
+        if (!client || !client->parent || !pkg_path) {
+                return INSTPROXY_E_INVALID_ARG;
+        }
+        if (sinf && (plist_get_node_type(sinf) != PLIST_DATA)) {
+                debug_info("(%s): ERROR: sinf data is not a PLIST_DATA node!", command);
+                return INSTPROXY_E_INVALID_ARG;
+        }
+        if (metadata && (plist_get_node_type(metadata) != PLIST_DATA)) {
+                debug_info("(%s): ERROR: metadata is not a PLIST_DATA node!", command);
+                return INSTPROXY_E_INVALID_ARG;
+        }
+        if (client->status_updater) {
+                return INSTPROXY_E_OP_IN_PROGRESS;
+        }
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        plist_t dict = plist_new_dict();
+        if (sinf && metadata) {
+                plist_t client_opts = plist_new_dict();
+                plist_dict_insert_item(client_opts, "ApplicationSINF", plist_copy(sinf));
+                plist_dict_insert_item(client_opts, "iTunesMetadata", plist_copy(metadata));
+                plist_dict_insert_item(dict, "ClientOptions", client_opts);
+        }
+        plist_dict_insert_item(dict, "Command", plist_new_string(command));
+        plist_dict_insert_item(dict, "PackagePath", plist_new_string(pkg_path));
+        instproxy_lock(client);
+        res = instproxy_error(property_list_service_send_xml_plist(client->parent, dict));
+        instproxy_unlock(client);
+        plist_free(dict);
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not send plist, error %d", res);
+                return res;
+        }
+        return instproxy_create_status_updater(client, status_cb, command);
+}
+/**
+ * Install an application on the device.
+ *
+ * @param client The connected installation_proxy client
+ * @param pkg_path Path of the installation package (inside the AFC jail)
+ * @param sinf PLIST_DATA node holding the package's SINF data or NULL.
+ * @param metadata PLIST_DATA node holding the packages's Metadata or NULL.
+ * @param status_cb Callback function for progress and status information. If
+ *        NULL is passed, this function will run synchronously.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ *
+ * @note If a callback function is given (async mode), this function returns
+ *     INSTPROXY_E_SUCCESS immediately if the status updater thread has been
+ *     created successfully; any error occuring during the operation has to be
+ *     handled inside the specified callback function.
+ */
+instproxy_error_t instproxy_install(instproxy_client_t client, const char *pkg_path, plist_t sinf, plist_t metadata, instproxy_status_cb_t status_cb)
+{
+        return instproxy_install_or_upgrade(client, pkg_path, sinf, metadata, status_cb, "Install");
+}
+/**
+ * Upgrade an application on the device. This function is nearly the same as
+ * instproxy_install; the difference is that the installation progress on the
+ * device is faster if the application is already installed.
+ *
+ * @param client The connected installation_proxy client
+ * @param pkg_path Path of the installation package (inside the AFC jail)
+ * @param sinf PLIST_DATA node holding the package's SINF data or NULL.
+ * @param metadata PLIST_DATA node holding the packages's Metadata or NULL.
+ * @param status_cb Callback function for progress and status information. If
+ *        NULL is passed, this function will run synchronously.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ *
+ * @note If a callback function is given (async mode), this function returns
+ *     INSTPROXY_E_SUCCESS immediately if the status updater thread has been
+ *     created successfully; any error occuring during the operation has to be
+ *     handled inside the specified callback function.
+ */
+instproxy_error_t instproxy_upgrade(instproxy_client_t client, const char *pkg_path, plist_t sinf, plist_t metadata, instproxy_status_cb_t status_cb)
+{
+        return instproxy_install_or_upgrade(client, pkg_path, sinf, metadata, status_cb, "Upgrade");
+}
+/**
+ * Uninstall an application from the device.
+ *
+ * @param client The connected installation proxy client
+ * @param appid ApplicationIdentifier of the app to uninstall
+ * @param status_cb Callback function for progress and status information. If
+ *        NULL is passed, this function will run synchronously.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ *
+ * @note If a callback function is given (async mode), this function returns
+ *     INSTPROXY_E_SUCCESS immediately if the status updater thread has been
+ *     created successfully; any error occuring during the operation has to be
+ *     handled inside the specified callback function.
+ */
+instproxy_error_t instproxy_uninstall(instproxy_client_t client, const char *appid, instproxy_status_cb_t status_cb)
+{
+        if (!client || !client->parent || !appid) {
+                return INSTPROXY_E_INVALID_ARG;
+        }
+        if (client->status_updater) {
+                return INSTPROXY_E_OP_IN_PROGRESS;
+        }
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict, "ApplicationIdentifier", plist_new_string(appid));
+        plist_dict_insert_item(dict, "Command", plist_new_string("Uninstall"));
+        instproxy_lock(client);
+        res = instproxy_error(property_list_service_send_xml_plist(client->parent, dict));
+        instproxy_unlock(client);
+        plist_free(dict);
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not send plist, error %d", res);
+                return res;
+        }
+        return instproxy_create_status_updater(client, status_cb, "Uninstall");
+}
+/**
+ * List archived applications. This function runs synchronously.
+ *
+ * @see instproxy_archive
+ *
+ * @param client The connected installation_proxy client
+ * @param result Pointer that will be set to a plist containing a PLIST_DICT
+ *        holding information about the archived applications found.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ */
+instproxy_error_t instproxy_lookup_archives(instproxy_client_t client, plist_t *result)
+{
+        if (!client || !client->parent || !result)
+                return INSTPROXY_E_INVALID_ARG;
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict, "Command", plist_new_string("LookupArchives"));
+        instproxy_lock(client);
+        res = instproxy_error(property_list_service_send_xml_plist(client->parent, dict));
+        plist_free(dict);
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not send plist, error %d", res);
+                goto leave_unlock;
+        }
+        res = instproxy_error(property_list_service_receive_plist(client->parent, result));
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not receive plist, error %d", res);
+                goto leave_unlock;
+        }
+        res = INSTPROXY_E_SUCCESS;
+leave_unlock:
+        instproxy_unlock(client);
+        return res;
+}
+/**
+ * Archive an application on the device.
+ * This function tells the device to make an archive of the specified
+ * application. This results in the device creating a ZIP archive in the
+ * 'ApplicationArchives' directory and uninstalling the application.
+ *
+ * @param client The connected installation proxy client
+ * @param appid ApplicationIdentifier of the app to archive.
+ * @param options This is either 0 for default behaviour (make an archive
+ *        including app/user settings etc. AND uninstall the application),
+ *        or one or a combination of the following options:
+ *        INSTPROXY_ARCHIVE_APP_ONLY (1)
+ *        INSTPROXY_ARCHIVE_SKIP_UNINSTALL (2)
+ * @param status_cb Callback function for progress and status information. If
+ *        NULL is passed, this function will run synchronously.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ *
+ * @note If a callback function is given (async mode), this function returns
+ *     INSTPROXY_E_SUCCESS immediately if the status updater thread has been
+ *     created successfully; any error occuring during the operation has to be
+ *     handled inside the specified callback function.
+ */
+instproxy_error_t instproxy_archive(instproxy_client_t client, const char *appid, uint32_t options, instproxy_status_cb_t status_cb)
+{
+        if (!client || !client->parent || !appid)
+                return INSTPROXY_E_INVALID_ARG;
+        if (client->status_updater) {
+                return INSTPROXY_E_OP_IN_PROGRESS;
+        }
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict, "ApplicationIdentifier", plist_new_string(appid));
+        if (options > 0) {
+                plist_t client_opts = plist_new_dict();
+                if (options & INSTPROXY_ARCHIVE_APP_ONLY) {
+                        plist_dict_insert_item(client_opts, "ArchiveType", plist_new_string("ApplicationOnly"));
+                }
+                if (options & INSTPROXY_ARCHIVE_SKIP_UNINSTALL) {
+                        plist_dict_insert_item(client_opts, "SkipUninstall", plist_new_bool(1));
+                }
+                plist_dict_insert_item(dict, "ClientOptions", client_opts);
+        }
+        plist_dict_insert_item(dict, "Command", plist_new_string("Archive"));
+        instproxy_lock(client);
+        res = instproxy_error(property_list_service_send_xml_plist(client->parent, dict));
+        instproxy_unlock(client);
+        plist_free(dict);
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not send plist, error %d", res);
+                return res;
+        }
+        return instproxy_create_status_updater(client, status_cb, "Archive");
+}
+/**
+ * Restore a previously archived application on the device.
+ * This function is the counterpart to instproxy_archive.
+ * @see instproxy_archive
+ *
+ * @param client The connected installation proxy client
+ * @param appid ApplicationIdentifier of the app to restore.
+ * @param status_cb Callback function for progress and status information. If
+ *        NULL is passed, this function will run synchronously.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ *
+ * @note If a callback function is given (async mode), this function returns
+ *     INSTPROXY_E_SUCCESS immediately if the status updater thread has been
+ *     created successfully; any error occuring during the operation has to be
+ *     handled inside the specified callback function.
+ */
+instproxy_error_t instproxy_restore(instproxy_client_t client, const char *appid, instproxy_status_cb_t status_cb)
+{
+        if (!client || !client->parent || !appid)
+                return INSTPROXY_E_INVALID_ARG;
+        if (client->status_updater) {
+                return INSTPROXY_E_OP_IN_PROGRESS;
+        }
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict, "ApplicationIdentifier", plist_new_string(appid));
+        plist_dict_insert_item(dict, "Command", plist_new_string("Restore"));
+        instproxy_lock(client);
+        res = instproxy_error(property_list_service_send_xml_plist(client->parent, dict));
+        instproxy_unlock(client);
+        plist_free(dict);
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not send plist, error %d", res);
+                return res;
+        }
+        return instproxy_create_status_updater(client, status_cb, "Restore");
+}
+/**
+ * Removes a previously archived application from the device.
+ * This function removes the ZIP archive from the 'ApplicationArchives'
+ * directory.
+ *
+ * @param client The connected installation proxy client
+ * @param appid ApplicationIdentifier of the archived app to remove.
+ * @param status_cb Callback function for progress and status information. If
+ *        NULL is passed, this function will run synchronously.
+ *
+ * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
+ *     an error occured.
+ *
+ * @note If a callback function is given (async mode), this function returns
+ *     INSTPROXY_E_SUCCESS immediately if the status updater thread has been
+ *     created successfully; any error occuring during the operation has to be
+ *     handled inside the specified callback function.
+ */
+instproxy_error_t instproxy_remove_archive(instproxy_client_t client, const char *appid, instproxy_status_cb_t status_cb)
+{
+        if (!client || !client->parent || !appid)
+                return INSTPROXY_E_INVALID_ARG;
+        if (client->status_updater) {
+                return INSTPROXY_E_OP_IN_PROGRESS;
+        }
+        instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
+        plist_t dict = plist_new_dict();
+        plist_dict_insert_item(dict, "ApplicationIdentifier", plist_new_string(appid));
+        plist_dict_insert_item(dict, "Command", plist_new_string("RemoveArchive"));
+        instproxy_lock(client);
+        res = instproxy_error(property_list_service_send_xml_plist(client->parent, dict));
+        instproxy_unlock(client);
+        plist_free(dict);
+        if (res != INSTPROXY_E_SUCCESS) {
+                debug_info("could not send plist, error %d", res);
+                return res;
+        }
+        return instproxy_create_status_updater(client, status_cb, "RemoveArchive");
+}