| /* |
| * webinspector.c |
| * com.apple.webinspector service implementation. |
| * |
| * Copyright (c) 2013 Yury Melnichek 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 |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| #include <string.h> |
| #include <stdlib.h> |
| #include <plist/plist.h> |
| |
| #include "webinspector.h" |
| #include "lockdown.h" |
| #include "common/debug.h" |
| |
| /** |
| * Convert a property_list_service_error_t value to a webinspector_error_t value. |
| * Used internally to get correct error codes. |
| * |
| * @param err An property_list_service_error_t error code |
| * |
| * @return A matching webinspector_error_t error code, |
| * WEBINSPECTOR_E_UNKNOWN_ERROR otherwise. |
| */ |
| static webinspector_error_t webinspector_error(property_list_service_error_t err) |
| { |
| switch (err) { |
| case PROPERTY_LIST_SERVICE_E_SUCCESS: |
| return WEBINSPECTOR_E_SUCCESS; |
| case PROPERTY_LIST_SERVICE_E_INVALID_ARG: |
| return WEBINSPECTOR_E_INVALID_ARG; |
| case PROPERTY_LIST_SERVICE_E_PLIST_ERROR: |
| return WEBINSPECTOR_E_PLIST_ERROR; |
| case PROPERTY_LIST_SERVICE_E_MUX_ERROR: |
| return WEBINSPECTOR_E_MUX_ERROR; |
| case PROPERTY_LIST_SERVICE_E_SSL_ERROR: |
| return WEBINSPECTOR_E_SSL_ERROR; |
| case PROPERTY_LIST_SERVICE_E_RECEIVE_TIMEOUT: |
| return WEBINSPECTOR_E_RECEIVE_TIMEOUT; |
| case PROPERTY_LIST_SERVICE_E_NOT_ENOUGH_DATA: |
| return WEBINSPECTOR_E_NOT_ENOUGH_DATA; |
| default: |
| break; |
| } |
| return WEBINSPECTOR_E_UNKNOWN_ERROR; |
| } |
| |
| webinspector_error_t webinspector_client_new(idevice_t device, lockdownd_service_descriptor_t service, webinspector_client_t * client) |
| { |
| *client = NULL; |
| |
| if (!device || !service || service->port == 0 || !client || *client) { |
| debug_info("Incorrect parameter passed to webinspector_client_new."); |
| return WEBINSPECTOR_E_INVALID_ARG; |
| } |
| |
| debug_info("Creating webinspector_client, port = %d.", service->port); |
| |
| property_list_service_client_t plclient = NULL; |
| webinspector_error_t ret = webinspector_error(property_list_service_client_new(device, service, &plclient)); |
| if (ret != WEBINSPECTOR_E_SUCCESS) { |
| debug_info("Creating a property list client failed. Error: %i", ret); |
| return ret; |
| } |
| |
| webinspector_client_t client_loc = (webinspector_client_t) malloc(sizeof(struct webinspector_client_private)); |
| client_loc->parent = plclient; |
| |
| *client = client_loc; |
| |
| debug_info("webinspector_client successfully created."); |
| return 0; |
| } |
| |
| webinspector_error_t webinspector_client_start_service(idevice_t device, webinspector_client_t * client, const char* label) |
| { |
| webinspector_error_t err = WEBINSPECTOR_E_UNKNOWN_ERROR; |
| service_client_factory_start_service(device, WEBINSPECTOR_SERVICE_NAME, (void**)client, label, SERVICE_CONSTRUCTOR(webinspector_client_new), &err); |
| return err; |
| } |
| |
| webinspector_error_t webinspector_client_free(webinspector_client_t client) |
| { |
| if (!client) |
| return WEBINSPECTOR_E_INVALID_ARG; |
| |
| webinspector_error_t err = webinspector_error(property_list_service_client_free(client->parent)); |
| free(client); |
| |
| return err; |
| } |
| |
| webinspector_error_t webinspector_send(webinspector_client_t client, plist_t plist) |
| { |
| webinspector_error_t res = WEBINSPECTOR_E_UNKNOWN_ERROR; |
| |
| uint32_t offset = 0; |
| int is_final_message = 0; |
| |
| char *packet = NULL; |
| uint32_t packet_length = 0; |
| |
| debug_info("Sending webinspector message..."); |
| debug_plist(plist); |
| |
| /* convert plist to packet */ |
| plist_to_bin(plist, &packet, &packet_length); |
| if (!packet || packet_length == 0) { |
| debug_info("Error converting plist to binary."); |
| return res; |
| } |
| |
| do { |
| /* determine if we need to send partial messages */ |
| if (packet_length < WEBINSPECTOR_PARTIAL_PACKET_CHUNK_SIZE) { |
| is_final_message = 1; |
| } else { |
| /* send partial packet */ |
| is_final_message = 0; |
| } |
| |
| plist_t outplist = plist_new_dict(); |
| if (!is_final_message) { |
| /* split packet into partial chunks */ |
| plist_dict_set_item(outplist, "WIRPartialMessageKey", plist_new_data(packet + offset, WEBINSPECTOR_PARTIAL_PACKET_CHUNK_SIZE)); |
| offset += WEBINSPECTOR_PARTIAL_PACKET_CHUNK_SIZE; |
| packet_length -= WEBINSPECTOR_PARTIAL_PACKET_CHUNK_SIZE; |
| } else { |
| /* send final chunk */ |
| plist_dict_set_item(outplist, "WIRFinalMessageKey", plist_new_data(packet + offset, packet_length)); |
| offset += packet_length; |
| packet_length -= packet_length; |
| } |
| |
| res = webinspector_error(property_list_service_send_binary_plist(client->parent, outplist)); |
| plist_free(outplist); |
| outplist = NULL; |
| if (res != WEBINSPECTOR_E_SUCCESS) { |
| debug_info("Sending plist failed with error %d", res); |
| return res; |
| } |
| } while(packet_length > 0); |
| |
| free(packet); |
| packet = NULL; |
| |
| return res; |
| } |
| |
| webinspector_error_t webinspector_receive(webinspector_client_t client, plist_t * plist) |
| { |
| return webinspector_receive_with_timeout(client, plist, 5000); |
| } |
| |
| webinspector_error_t webinspector_receive_with_timeout(webinspector_client_t client, plist_t * plist, uint32_t timeout_ms) |
| { |
| webinspector_error_t res = WEBINSPECTOR_E_UNKNOWN_ERROR; |
| plist_t message = NULL; |
| plist_t key = NULL; |
| |
| int is_final_message = 1; |
| |
| char* buffer = NULL; |
| uint64_t length = 0; |
| |
| char* packet = NULL; |
| char* newpacket = NULL; |
| uint64_t packet_length = 0; |
| |
| debug_info("Receiving webinspector message..."); |
| |
| do { |
| /* receive message */ |
| res = webinspector_error(property_list_service_receive_plist_with_timeout(client->parent, &message, timeout_ms)); |
| if (res != WEBINSPECTOR_E_SUCCESS || !message) { |
| debug_info("Could not receive message, error %d", res); |
| plist_free(message); |
| return WEBINSPECTOR_E_MUX_ERROR; |
| } |
| |
| /* get message key */ |
| key = plist_dict_get_item(message, "WIRFinalMessageKey"); |
| if (!key) { |
| key = plist_dict_get_item(message, "WIRPartialMessageKey"); |
| if (!key) { |
| debug_info("ERROR: Unable to read message key."); |
| plist_free(message); |
| return WEBINSPECTOR_E_PLIST_ERROR; |
| } |
| is_final_message = 0; |
| } else { |
| is_final_message = 1; |
| } |
| |
| /* read partial data */ |
| plist_get_data_val(key, &buffer, &length); |
| if (!buffer || length == 0 || length > 0xFFFFFFFF) { |
| debug_info("ERROR: Unable to get the inner plist binary data."); |
| free(packet); |
| free(buffer); |
| return WEBINSPECTOR_E_PLIST_ERROR; |
| } |
| |
| /* (re)allocate packet data */ |
| if (!packet) { |
| packet = (char*)malloc(length * sizeof(char)); |
| } else { |
| newpacket = (char*)realloc(packet, (packet_length + length) * sizeof(char)); |
| packet = newpacket; |
| } |
| |
| /* copy partial data into final packet data */ |
| memcpy(packet + packet_length, buffer, length); |
| |
| /* cleanup buffer */ |
| free(buffer); |
| buffer = NULL; |
| |
| if (message) { |
| plist_free(message); |
| message = NULL; |
| } |
| |
| /* adjust packet length */ |
| packet_length += length; |
| length = 0; |
| } while(!is_final_message); |
| |
| /* read final message */ |
| if (packet_length) { |
| plist_from_bin(packet, (uint32_t)packet_length, plist); |
| if (!*plist) { |
| debug_info("Error restoring the final plist."); |
| free(packet); |
| return WEBINSPECTOR_E_PLIST_ERROR; |
| } |
| |
| debug_plist(*plist); |
| } |
| |
| if (packet) { |
| free(packet); |
| } |
| |
| return res; |
| } |