GSList *
dime_parse_records(const char *data, size_t size)
{
const char * const data0 = data;
GSList *list = NULL;
for (;;) {
struct dime_record *record;
size_t ret;
record = dime_record_alloc();
list = g_slist_prepend(list, record);
ret = dime_parse_record_header(data, size, record);
if (0 == ret) {
goto error;
}
data += ret;
size -= ret;
if (data0 == data) {
if (0 == (DIME_F_MB & record->flags)) {
/* FIXME: Warning, no message begin flag */
goto error;
}
}
if (DIME_F_ME & record->flags) {
break;
}
}
return g_slist_reverse(list);
error:
dime_list_free(&list);
return NULL;
}
bool
thex_download_finished(struct thex_download *ctx)
{
GSList *records;
bool success = FALSE;
g_return_val_if_fail(ctx, FALSE);
g_return_val_if_fail(!ctx->finished, FALSE);
ctx->finished = TRUE;
g_assert(ctx->pos <= ctx->data_size);
ctx->data_size = ctx->pos; /* Amount which is actually valid */
if (NULL == ctx->data) {
records = NULL;
goto finish; /* Did not receive anything */
}
records = dime_parse_records(ctx->data, ctx->data_size);
if (records) {
const struct dime_record *record;
const char *data;
char *hashtree_id;
size_t size;
record = dime_find_record(records, "text/xml", NULL);
if (NULL == record) {
if (GNET_PROPERTY(tigertree_debug)) {
dump_hex(stderr, "THEX data", ctx->data, ctx->data_size);
}
goto finish;
}
data = dime_record_data(record);
size = dime_record_data_length(record);
hashtree_id = thex_download_handle_xml(ctx, data, size);
if (NULL == hashtree_id) {
if (GNET_PROPERTY(tigertree_debug)) {
g_debug("TTH could not determine hashtree ID");
dump_hex(stderr, "THEX data", ctx->data, ctx->data_size);
}
/* Bug workaround:
* Try without an ID. GnucDNA 1.1.1.4 sends truncated XML with
* a missing closing tag.
*/
}
record = dime_find_record(records, THEX_TREE_TYPE, hashtree_id);
if (NULL == record && NULL != hashtree_id) {
/* Bug workaround:
* Ignore the ID and fetch the first record with a matching
* type. BearShare 5.2 prepends a bogus double-quote to the ID.
*/
record = dime_find_record(records, THEX_TREE_TYPE, NULL);
}
HFREE_NULL(hashtree_id);
if (NULL == record) {
if (GNET_PROPERTY(tigertree_debug)) {
dump_hex(stderr, "THEX data", ctx->data, ctx->data_size);
}
goto finish;
}
data = dime_record_data(record);
size = dime_record_data_length(record);
if (!thex_download_handle_hashtree(ctx, data, size))
goto finish;
} else {
if (GNET_PROPERTY(tigertree_debug)) {
g_debug("TTH could not parse DIME records");
dump_hex(stderr, "THEX data", ctx->data, ctx->data_size);
}
goto finish;
}
success = TRUE;
finish:
dime_list_free(&records);
HFREE_NULL(ctx->data);
return success;
}
