/* determines the size of the given AMF data */
size_t amf0_data_size(amf0_data * data) {
size_t s = 0;
amf0_node * node;
if (data != NULL) {
s += sizeof(uint8_t);
switch (data->type) {
case AMF0_TYPE_NUMBER:
s += sizeof(number64_t);
break;
case AMF0_TYPE_BOOLEAN:
s += sizeof(uint8_t);
break;
case AMF0_TYPE_STRING:
s += sizeof(uint16_t) + (size_t)amf0_string_get_size(data);
break;
case AMF0_TYPE_OBJECT:
node = amf0_object_first(data);
while (node != NULL) {
s += sizeof(uint16_t) + (size_t)amf0_string_get_size(amf0_object_get_name(node));
s += (size_t)amf0_data_size(amf0_object_get_data(node));
node = amf0_object_next(node);
}
s += sizeof(uint16_t) + sizeof(uint8_t);
break;
case AMF0_TYPE_NULL:
case AMF0_TYPE_UNDEFINED:
break;
/*case AMF0_TYPE_REFERENCE:*/
case AMF0_TYPE_ECMA_ARRAY:
s += sizeof(uint32_t);
node = amf0_associative_array_first(data);
while (node != NULL) {
s += sizeof(uint16_t) + (size_t)amf0_string_get_size(amf0_associative_array_get_name(node));
s += (size_t)amf0_data_size(amf0_associative_array_get_data(node));
node = amf0_associative_array_next(node);
}
s += sizeof(uint16_t) + sizeof(uint8_t);
break;
case AMF0_TYPE_STRICT_ARRAY:
s += sizeof(uint32_t);
node = amf0_array_first(data);
while (node != NULL) {
s += (size_t)amf0_data_size(amf0_array_get(node));
node = amf0_array_next(node);
}
break;
case AMF0_TYPE_DATE:
s += sizeof(number64_t) + sizeof(int16_t);
break;
/*case AMF0_TYPE_SIMPLEOBJECT:*/
case AMF0_TYPE_XML_DOCUMENT:
case AMF0_TYPE_TYPED_OBJECT:
case AMF0_TYPE_OBJECT_END:
break; /* end of composite object */
default:
break;
}
}
return s;
}
/* write an object */
static size_t amf0_object_write(amf0_data * data, write_proc_t write_proc, void * user_data) {
amf0_node * node;
size_t w = 0;
uint16_t filler = swap_uint16(0);
uint8_t terminator = AMF0_TYPE_OBJECT_END;
node = amf0_object_first(data);
while (node != NULL) {
w += amf0_string_write(amf0_object_get_name(node), write_proc, user_data);
w += amf0_data_write(amf0_object_get_data(node), write_proc, user_data);
node = amf0_object_next(node);
}
/* empty string is the last element */
w += write_proc(&filler, sizeof(uint16_t), user_data);
/* an object ends with 0x09 */
w += write_proc(&terminator, sizeof(uint8_t), user_data);
return w;
}
/* dump AMF data into a stream as text */
void amf0_data_dump(FILE * stream, amf0_data * data, int indent_level) {
if (data != NULL) {
amf0_node * node;
time_t time;
struct tm * t;
char datestr[128];
switch (data->type) {
case AMF0_TYPE_NUMBER:
fprintf(stream, "%.12g", data->number_data);
break;
case AMF0_TYPE_BOOLEAN:
fprintf(stream, "%s", (data->boolean_data) ? "true" : "false");
break;
case AMF0_TYPE_STRING:
fprintf(stream, "\'%.*s\'", data->string_data.size, data->string_data.mbstr);
break;
case AMF0_TYPE_OBJECT:
node = amf0_object_first(data);
fprintf(stream, "{\n");
while (node != NULL) {
fprintf(stream, "%*s", (indent_level+1)*4, "");
amf0_data_dump(stream, amf0_object_get_name(node), indent_level+1);
fprintf(stream, ": ");
amf0_data_dump(stream, amf0_object_get_data(node), indent_level+1);
node = amf0_object_next(node);
fprintf(stream, "\n");
}
fprintf(stream, "%*s", indent_level*4 + 1, "}");
break;
case AMF0_TYPE_NULL:
fprintf(stream, "null");
break;
case AMF0_TYPE_UNDEFINED:
fprintf(stream, "undefined");
break;
/*case AMF0_TYPE_REFERENCE:*/
case AMF0_TYPE_ECMA_ARRAY:
node = amf0_associative_array_first(data);
fprintf(stream, "{\n");
while (node != NULL) {
fprintf(stream, "%*s", (indent_level+1)*4, "");
amf0_data_dump(stream, amf0_associative_array_get_name(node), indent_level+1);
fprintf(stream, " => ");
amf0_data_dump(stream, amf0_associative_array_get_data(node), indent_level+1);
node = amf0_associative_array_next(node);
fprintf(stream, "\n");
}
fprintf(stream, "%*s", indent_level*4 + 1, "}");
break;
case AMF0_TYPE_STRICT_ARRAY:
node = amf0_array_first(data);
fprintf(stream, "[\n");
while (node != NULL) {
fprintf(stream, "%*s", (indent_level+1)*4, "");
amf0_data_dump(stream, node->data, indent_level+1);
node = amf0_array_next(node);
fprintf(stream, "\n");
}
fprintf(stream, "%*s", indent_level*4 + 1, "]");
break;
case AMF0_TYPE_DATE:
time = amf0_date_to_time_t(data);
tzset();
t = localtime(&time);
strftime(datestr, sizeof(datestr), "%a, %d %b %Y %H:%M:%S %z", t);
fprintf(stream, "%s", datestr);
break;
/*case AMF0_TYPE_SIMPLEOBJECT:*/
case AMF0_TYPE_XML_DOCUMENT: break;
case AMF0_TYPE_TYPED_OBJECT: break;
default: break;
}
}
}
/* dump AMF data into a stream as text */
void amf0_data_dump(FILE * stream, const amf0_data *data, int indent_level) {
if (data != NULL) {
amf0_node * node;
time_t time;
struct tm * t;
char datestr[128];
switch (data->type) {
case AMF0_TYPE_NUMBER:
fprintf(stream, "%.12g", data->number_data);
break;
case AMF0_TYPE_BOOLEAN:
fprintf(stream, "%s", (data->boolean_data) ? "true" : "false");
break;
case AMF0_TYPE_STRING:
fprintf(stream, "\'%.*s\'", data->string_data.size, data->string_data.mbstr);
break;
case AMF0_TYPE_OBJECT:
node = amf0_object_first(data);
fprintf(stream, "{\n");
while (node != NULL) {
fprintf(stream, "%*s", (indent_level+1)*4, "");
amf0_data_dump(stream, amf0_object_get_name(node), indent_level+1);
fprintf(stream, ": ");
amf0_data_dump(stream, amf0_object_get_data(node), indent_level+1);
node = amf0_object_next(node);
fprintf(stream, "\n");
}
fprintf(stream, "%*s", indent_level*4 + 1, "}");
break;
case AMF0_TYPE_MOVIECLIP:
fprintf(stream, "[movieclip]");
break;
case AMF0_TYPE_NULL:
fprintf(stream, "null");
break;
case AMF0_TYPE_UNDEFINED:
fprintf(stream, "undefined");
break;
case AMF0_TYPE_REFERENCE: /* TODO */
fprintf(stream, "[reference]");
break;
case AMF0_TYPE_ECMA_ARRAY:
node = amf0_associative_array_first(data);
fprintf(stream, "{\n");
while (node != NULL) {
fprintf(stream, "%*s", (indent_level+1)*4, "");
amf0_data_dump(stream, amf0_associative_array_get_name(node), indent_level+1);
fprintf(stream, " => ");
amf0_data_dump(stream, amf0_associative_array_get_data(node), indent_level+1);
node = amf0_associative_array_next(node);
fprintf(stream, "\n");
}
fprintf(stream, "%*s", indent_level*4 + 1, "}");
break;
case AMF0_TYPE_OBJECT_END:
fprintf(stream, "[object end]");
break;
case AMF0_TYPE_STRICT_ARRAY:
node = amf0_array_first(data);
fprintf(stream, "[\n");
while (node != NULL) {
fprintf(stream, "%*s", (indent_level+1)*4, "");
amf0_data_dump(stream, node->data, indent_level+1);
node = amf0_array_next(node);
fprintf(stream, "\n");
}
fprintf(stream, "%*s", indent_level*4 + 1, "]");
break;
case AMF0_TYPE_DATE:
time = amf0_date_to_time_t(data);
tzset();
t = localtime(&time);
strftime(datestr, sizeof(datestr), "%a, %d %b %Y %H:%M:%S %z", t);
fprintf(stream, "%s", datestr);
break;
case AMF0_TYPE_LONG_STRING: /* TODO */
fprintf(stream, "[long string]");
break;
case AMF0_TYPE_UNSUPPORTED:
fprintf(stream, "[unsupported]");
break;
case AMF0_TYPE_RECORDSET:
fprintf(stream, "[recordset]");
break;
case AMF0_TYPE_XML_DOCUMENT: /* TODO */
fprintf(stream, "[xml document]");
break;
case AMF0_TYPE_TYPED_OBJECT: /* TODO */
fprintf(stream, "[typed object]");
break;
default:
fprintf(stream, "[unknown data type 0x%x]", data->type);
break;
}
}
}
