Implement storing received files as backup including new Manifest

1 files changed, 157 insertions, 158 deletions

diff --git a/tools/iphonebackup.c b/tools/iphonebackup.c
index 611c0f2..1ad4116 100644
--- a/tools/iphonebackup.c
+++ b/tools/iphonebackup.c
@@ -40,7 +40,8 @@ static int quit_flag = 0;
 
 enum cmd_mode {
         CMD_BACKUP,
-        CMD_RESTORE
+        CMD_RESTORE,
+        CMD_LEAVE
 };
 
 static plist_t mobilebackup_factory_info_plist()
@@ -102,150 +103,24 @@ static plist_t mobilebackup_factory_info_plist()
         return ret;
 }
 
-static plist_t mobilebackup_factory_metadata_plist()
-{
-        plist_t ret = NULL;
-/*
-Metadata key is:
-<dict>
-        <key>Path</key>
-        <string>Library/SMS/sms.db</string>
-        <key>Version</key>
-        <string>3.0</string>
-        <key>Greylist</key>
-        <false/>
-        <key>Domain</key>
-        <string>HomeDomain</string>
-</dict>
-*/
-/*
-<dict>
-        <key>Metadata</key>
-        <data><!-- binary plist -->
-        YnBsaXN0MDDUAQIDBAUGBwhUUGF0aFdWZXJzaW9uWEdyZXlsaXN0VkRvbWFp
-        bl8QEkxpYnJhcnkvU01TL3Ntcy5kYlMzLjAIWkhvbWVEb21haW4IERYeJy5D
-        R0gAAAAAAAABAQAAAAAAAAAJAAAAAAAAAAAAAAAAAAAAUw==
-        </data>
-        <key>StorageVersion</key>
-        <string>1.0</string>
-        <key>Version</key>
-        <string>3.0</string>
-        <key>AuthVersion</key>
-        <string>1.0</string>
-        <key>IsEncrypted</key>
-        <false/>
-</dict>
-*/
-        return ret;
-}
-
-/**
- * Generates a manifest data plist with all files and corresponding hashes
- */
-static plist_t mobilebackup_factory_manifest_data_plist()
-{
-        plist_t ret = NULL;
-        plist_t value_node = NULL;
-        char *uuid = NULL;
-        GTimeVal tv = {0, 0};
-
-        ret = plist_new_dict();
-
-        /* get basic device information in one go */
-        lockdownd_get_value(client, NULL, "IntegratedCircuitCardIdentity", &value_node);
-
-        iphone_device_get_uuid(phone, &uuid);
-        plist_dict_insert_item(ret, "DeviceId", plist_new_string(uuid));
-        free(uuid);
-
-        plist_dict_insert_item(ret, "Version", plist_new_string("6.2"));
-
-        /* TODO: add all Applications */
-
-        /* TODO: add all Files */
-        plist_t files = plist_new_dict();
-
-        /* single file entry */
-        plist_t info_node = plist_new_dict();
-        g_get_current_time(&tv);
-        plist_dict_insert_item(info_node, "ModificationTime", plist_new_date(tv.tv_sec, tv.tv_usec));
-        plist_dict_insert_item(info_node, "FileLength", plist_new_uint(131072));
-        plist_dict_insert_item(info_node, "Domain", plist_new_string("HomeDomain"));
-
-        /* FIXME: calculate correct data hash */
-        /* Data hash is: sha1(<file>) */
-        plist_dict_insert_item(info_node, "DataHash", plist_new_data(NULL, 0));
-        plist_dict_insert_item(info_node, "Group ID", plist_new_uint(501));
-        plist_dict_insert_item(info_node, "User ID", plist_new_uint(501));
-        plist_dict_insert_item(info_node, "Mode ID", plist_new_uint(420));
-
-        /* FIXME: calculate correct file hash */
-        /* File hash is: sha1(<Domain>-<Relative File Path>) */
-        plist_dict_insert_item(files, "3d0d7e5fb2ce288813306e4d4636395e047a3d28", info_node);
-        plist_dict_insert_item(ret, "Files", files);
-
-        /* last node with ICCID */
-        if (value_node)
-                plist_dict_insert_item(ret, "DeviceICCID", &value_node);
-
-        return ret;
-}
-
-/**
- * Generates a manifest plist with all needed information and hashes
- */
-static plist_t mobilebackup_factory_manifest_plist(plist_t manifest_data)
-{
-        char *buffer = NULL;
-        char *s = NULL;
-        uint32_t length;
-        unsigned char sha1[20];
-        gsize sha1_len;
-        GChecksum *checksum;
-        plist_t ret = NULL;
-
-        if (!manifest_data)
-                return ret;
-
-        ret = plist_new_dict();
-        plist_dict_insert_item(ret, "AuthVersion", plist_new_string("2.0"));
-
-        /* AuthSignature Hash is: sha1(<manifest_data>) */
-        plist_to_bin(manifest_data, &buffer, &length);
-
-        sha1_len = g_checksum_type_get_length(G_CHECKSUM_SHA1);
-        checksum = g_checksum_new(G_CHECKSUM_SHA1);
-        g_checksum_update(checksum, (guchar *)buffer, length);
-        g_checksum_get_digest(checksum, sha1, &sha1_len);
-        s = (char *)g_checksum_get_string(checksum);
-        printf("SHA1 AuthSignature: %s\n", s);
-        plist_dict_insert_item(ret, "AuthSignature", plist_new_data((char*)sha1, sha1_len));
-        g_checksum_free(checksum);
-
-
-        plist_dict_insert_item(ret, "IsEncrypted", plist_new_uint(0));
-        plist_dict_insert_item(ret, "Data", plist_new_data(buffer, length));
-
-        free(buffer);
-
-        return ret;
-}
-
 enum plist_format_t {
         PLIST_FORMAT_XML,
         PLIST_FORMAT_BINARY
 };
 
-static int plist_read_from_filename(char *filename, plist_t *plist)
+static void buffer_to_filename(char *filename, char *buffer, uint32_t length)
 {
-        return 1;
+        FILE *f;
+
+        f = fopen(filename, "ab");
+        fwrite(buffer, sizeof(char), length, f);
+        fclose(f);
 }
 
 static int plist_write_to_filename(plist_t plist, char *filename, enum plist_format_t format)
 {
         char *buffer = NULL;
         uint32_t length;
-        FILE *f;
 
         if (!plist || !filename)
                 return 0;
@@ -257,9 +132,7 @@ static int plist_write_to_filename(plist_t plist, char *filename, enum plist_for
         else
                 return 0;
 
-        f = fopen(filename, "wb");
-        fwrite(buffer, sizeof(char), length, f);
-        fclose(f);
+        buffer_to_filename(filename, buffer, length);
 
         free(buffer);
 
@@ -281,25 +154,50 @@ static int plist_strcmp(plist_t node, const char *str)
         return ret;
 }
 
+static plist_t device_link_message_factory_process_message_new(plist_t content)
+{
+        plist_t ret = plist_new_array();
+        plist_array_append_item(ret, plist_new_string("DLMessageProcessMessage"));
+        plist_array_append_item(ret, content);
+        return ret;
+}
+
+static void mobilebackup_cancel_backup_with_error(const char *reason)
+{
+        plist_t node = plist_new_dict();
+        plist_dict_insert_item(node, "BackupMessageTypeKey", plist_new_string("BackupMessageError"));
+        plist_dict_insert_item(node, "BackupErrorReasonKey", plist_new_string(reason));
+
+        plist_t message = device_link_message_factory_process_message_new(node);
+
+        mobilebackup_send(mobilebackup, message);
+
+        plist_free(message);
+        message = NULL;
+}
+
 static void mobilebackup_write_status(char *path, int status)
 {
+        struct stat st;
         plist_t status_plist = plist_new_dict();
         plist_dict_insert_item(status_plist, "Backup Success", plist_new_bool(status));
         char *file_path = g_build_path(G_DIR_SEPARATOR_S, path, "Status.plist", NULL);
+        if (stat(file_path, &st) == 0)
+                remove(file_path);
         plist_write_to_filename(status_plist, file_path, PLIST_FORMAT_XML);
         g_free(file_path);
         plist_free(status_plist);
 }
 
-static void debug_plist(plist_t plist)
+static void debug_plist(plist_t a)
 {
         char *buffer = NULL;
         uint32_t length = 0;
 
-        if (!plist)
+        if (a == NULL)
                 return;
 
-        plist_to_xml(plist, &buffer, &length);
+        plist_to_xml(a, &buffer, &length);
 
         printf("Printing %i bytes plist:\n%s\n", length, buffer);
         free(buffer);
@@ -341,6 +239,9 @@ int main(int argc, char *argv[])
         char *backup_directory = NULL;
         struct stat st;
         plist_t node = NULL;
+        plist_t node_tmp = NULL;
+        char *buffer = NULL;
+        uint64_t length = 0;
 
         /* we need to exit cleanly on running backups and restores or we cause havok */
         signal(SIGINT, clean_exit);
@@ -440,6 +341,11 @@ int main(int argc, char *argv[])
                 printf("Started \"%s\" service on port %d.\n", MOBILEBACKUP_SERVICE_NAME, port);
                 mobilebackup_client_new(phone, port, &mobilebackup);
 
+                if (quit_flag > 0) {
+                        printf("Aborting backup. Cancelled by user.\n");
+                        cmd = CMD_LEAVE;
+                }
+
                 switch(cmd) {
                         case CMD_BACKUP:
                         printf("Starting backup...\n");
@@ -451,29 +357,32 @@ int main(int argc, char *argv[])
                         /* create Info.plist (Device infos, IC-Info.sidb, photos, app_ids, iTunesPrefs) */
                         printf("Creating \"%s/Info.plist\".\n", backup_directory);
                         plist_t info_plist = mobilebackup_factory_info_plist();
+                        if (stat(info_path, &st) == 0)
+                                remove(info_path);
                         plist_write_to_filename(info_plist, info_path, PLIST_FORMAT_XML);
                         g_free(info_path);
 
+                        if (client) {
+                                lockdownd_client_free(client);
+                                client = NULL;
+                        }
+
                         /* create Manifest.plist (backup manifest (backup state)) */
                         printf("Creating \"%s/Manifest.plist\".\n", backup_directory);
                         char *manifest_path = g_build_path(G_DIR_SEPARATOR_S, backup_directory, "Manifest.plist", NULL);
-                        plist_t manifest_data = mobilebackup_factory_manifest_data_plist();
-                        plist_t manifest_plist = mobilebackup_factory_manifest_plist(manifest_data);
-                        plist_write_to_filename(manifest_plist, manifest_path, PLIST_FORMAT_XML);
-                        g_free(manifest_path);
+                        plist_t manifest_plist = NULL;
+                        if (stat(manifest_path, &st) == 0)
+                                remove(manifest_path);
 
                         /* create Status.plist with failed status for now */
                         mobilebackup_write_status(backup_directory, 0);
 
-                        /* close down lockdown connection as it is no longer needed */
-                        lockdownd_client_free(client);
-                        client = NULL;
-
-                        /* request backup from device with manifest */
+                        /* request backup from device with manifest from last backup */
                         printf("Sending manifest and requesting backup.\n");
 
                         node = plist_new_dict();
-                        plist_dict_insert_item(node, "BackupManifestKey", manifest_plist);
+                        if (manifest_plist)
+                                plist_dict_insert_item(node, "BackupManifestKey", manifest_plist);
                         plist_dict_insert_item(node, "BackupComputerBasePathKey", plist_new_string("/"));
                         plist_dict_insert_item(node, "BackupMessageTypeKey", plist_new_string("BackupMessageBackupRequest"));
                         plist_dict_insert_item(node, "BackupProtocolVersion", plist_new_string("1.6"));
@@ -514,21 +423,66 @@ int main(int argc, char *argv[])
 
                         /* receive and save DLSendFile files and metadata, ACK each */
                         int file_index = 0;
+                        char *file_path = NULL;
+                        char *file_ext = NULL;
+                        char *filename_mdinfo = NULL;
+                        char *filename_mddata = NULL;
+                        char *filename_source = NULL;
                         do {
                                 mobilebackup_receive(mobilebackup, &message);
                                 node = plist_array_get_item(message, 0);
                                 if (plist_strcmp(node, "DLSendFile"))
                                         break;
 
-                                printf("Receiving file %d...\n", file_index);
-                                /* TODO: save <hash>.mdinfo */
-                                /* TODO: save <hash>.mddata */
-                                debug_plist(message);
+                                /* get source filename and print it */
+                                node_tmp = plist_array_get_item(message, 2);
+                                node = plist_dict_get_item(node_tmp, "DLFileSource");
+                                plist_get_string_val(node, &filename_source);
+                                printf("Received file %s...", filename_source);
+                                free(filename_source);
+
+                                /* save <hash>.mdinfo */
+                                node = plist_dict_get_item(node_tmp, "BackupFileInfo");
+                                if (node) {
+                                        node = plist_dict_get_item(node_tmp, "DLFileDest");
+                                        plist_get_string_val(node, &file_path);
+                                        file_ext = (char *)g_strconcat(file_path, ".mdinfo", NULL);
+                                        filename_mdinfo = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
+                                        node = plist_dict_get_item(node_tmp, "BackupFileInfo");
+                                        plist_write_to_filename(node, filename_mdinfo, PLIST_FORMAT_BINARY);
+                                        g_free(file_ext);
+                                        g_free(filename_mdinfo);
+                                }
+
+                                /* save <hash>.mddata */
+                                node = plist_dict_get_item(node_tmp, "BackupFileInfo");
+                                if (node_tmp && file_path) {
+                                        node = plist_dict_get_item(node_tmp, "DLFileDest");
+                                        plist_get_string_val(node, &file_path);
+                                        file_ext = (char *)g_strconcat(file_path, ".mddata", NULL);
+                                        filename_mddata = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
+                                        node_tmp = plist_array_get_item(message, 1);
+                                        plist_get_data_val(node_tmp, &buffer, &length);
+                                        buffer_to_filename(filename_mddata, buffer, length);
+                                        free(buffer);
+                                        buffer = NULL;
+                                        g_free(filename_mddata);
+                                }
+
+                                printf("DONE\n");
+
+                                if (file_ext)
+                                        free(file_ext);
+
                                 plist_free(message);
                                 message = NULL;
 
-                                if (quit_flag) {
-                                        /* FIXME: need to cancel the backup here */
+                                if (quit_flag > 0) {
+                                        /* need to cancel the backup here */
+                                        mobilebackup_cancel_backup_with_error("Cancelling DLSendFile");
+
+                                        plist_free(message);
+                                        message = NULL;
                                         break;
                                 }
 
@@ -550,17 +504,58 @@ int main(int argc, char *argv[])
                         printf("Received %d files from device.\n", file_index);
 
                         if (!plist_strcmp(node, "DLMessageProcessMessage")) {
-                                node = plist_array_get_item(message, 1);
-                                node = plist_dict_get_item(node, "BackupMessageTypeKey");
+                                node_tmp = plist_array_get_item(message, 1);
+                                node = plist_dict_get_item(node_tmp, "BackupMessageTypeKey");
                                 /* wait until received final backup finished message */
                                 if (node && !plist_strcmp(node, "BackupMessageBackupFinished")) {
                                         /* backup finished */
+
+                                        /* process BackupFilesToDeleteKey */
+                                        node = plist_dict_get_item(node_tmp, "BackupFilesToDeleteKey");
+                                        if (node) {
+                                                length = plist_array_get_size(node);
+                                                i = 0;
+                                                while ((node_tmp = plist_array_get_item(node, i++)) != NULL) {
+                                                        plist_get_string_val(node_tmp, &file_path);
+
+                                                        file_ext = (char *)g_strconcat(file_path, ".mddata", NULL);
+                                                        filename_mddata = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
+                                                        g_free(file_ext);
+                                                        printf("Removing \"%s\"... ", filename_mddata);
+                                                        if (!remove( filename_mddata )) {
+                                                                printf("DONE\n");
+                                                        } else
+                                                                printf("FAILED\n");
+
+                                                        file_ext = (char *)g_strconcat(file_path, ".mdinfo", NULL);
+                                                        filename_mdinfo = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
+                                                        g_free(file_ext);
+                                                        printf("Removing \"%s\"... ", filename_mdinfo);
+                                                        if (!remove( filename_mdinfo )) {
+                                                                printf("DONE\n");
+                                                        } else
+                                                                printf("FAILED\n");
+                                                }
+                                        }
+
+                                        /* save new Manifest.plist */
+                                        node_tmp = plist_array_get_item(message, 1);
+                                        manifest_plist = plist_dict_get_item(node_tmp, "BackupManifestKey");
+                                        if (manifest_plist) {
+                                                if (stat(manifest_path, &st) != 0)
+                                                        remove(manifest_path);
+                                                plist_write_to_filename(manifest_plist, manifest_path, PLIST_FORMAT_XML);
+                                        }
+                                        
                                         /* create: Status.plist (Info on how the backup process turned out) */
                                         printf("Backup Successful.\n");
                                         mobilebackup_write_status(backup_directory, 1);
                                 }
                         }
 
+                        if (manifest_path)
+                                g_free(manifest_path);
+
                         if (node)
                                 plist_free(node);
 
@@ -575,6 +570,7 @@ int main(int argc, char *argv[])
                         lockdownd_client_free(client);
                         client = NULL;
                         break;
+                        case CMD_LEAVE:
                         default:
                         break;
                 }
@@ -584,11 +580,14 @@ int main(int argc, char *argv[])
                 client = NULL;
         }
 
-        if (client)
+        if (client) {
                 lockdownd_client_free(client);
+                client = NULL;
+        }
 
         if (mobilebackup)
                 mobilebackup_client_free(mobilebackup);
+
         iphone_device_free(phone);
 
         return 0;