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#include "include/types.h"
#include "rgw_common.h"
#include "rgw_xml.h"
#define dout_subsys ceph_subsys_rgw
using namespace std;
XMLObjIter::
XMLObjIter()
{
}
XMLObjIter::
~XMLObjIter()
{
}
void XMLObjIter::
set(const XMLObjIter::map_iter_t &_cur, const XMLObjIter::map_iter_t &_end)
{
cur = _cur;
end = _end;
}
XMLObj *XMLObjIter::
get_next()
{
XMLObj *obj = NULL;
if (cur != end) {
obj = cur->second;
++cur;
}
return obj;
};
ostream& operator<<(ostream& out, XMLObj& obj) {
out << obj.obj_type << ": " << obj.data;
return out;
}
XMLObj::
~XMLObj()
{
}
bool XMLObj::
xml_start(XMLObj *parent, const char *el, const char **attr)
{
this->parent = parent;
obj_type = el;
for (int i = 0; attr[i]; i += 2) {
attr_map[attr[i]] = string(attr[i + 1]);
}
return true;
}
bool XMLObj::
xml_end(const char *el)
{
return true;
}
void XMLObj::
xml_handle_data(const char *s, int len)
{
data.append(s, len);
}
string& XMLObj::
XMLObj::get_data()
{
return data;
}
XMLObj *XMLObj::
XMLObj::get_parent()
{
return parent;
}
void XMLObj::
add_child(string el, XMLObj *obj)
{
children.insert(pair<string, XMLObj *>(el, obj));
}
bool XMLObj::
get_attr(string name, string& attr)
{
map<string, string>::iterator iter = attr_map.find(name);
if (iter == attr_map.end())
return false;
attr = iter->second;
return true;
}
XMLObjIter XMLObj::
find(string name)
{
XMLObjIter iter;
map<string, XMLObj *>::iterator first;
map<string, XMLObj *>::iterator last;
first = children.find(name);
last = children.upper_bound(name);
iter.set(first, last);
return iter;
}
XMLObj *XMLObj::
find_first(string name)
{
XMLObjIter iter;
map<string, XMLObj *>::iterator first;
first = children.find(name);
if (first != children.end())
return first->second;
return NULL;
}
static void xml_start(void *data, const char *el, const char **attr) {
RGWXMLParser *handler = (RGWXMLParser *)data;
if (!handler->xml_start(el, attr))
handler->set_failure();
}
RGWXMLParser::
RGWXMLParser() : buf(NULL), buf_len(0), cur_obj(NULL), success(true)
{
p = XML_ParserCreate(NULL);
}
RGWXMLParser::
~RGWXMLParser()
{
XML_ParserFree(p);
free(buf);
vector<XMLObj *>::iterator iter;
for (iter = objs.begin(); iter != objs.end(); ++iter) {
XMLObj *obj = *iter;
delete obj;
}
}
bool RGWXMLParser::xml_start(const char *el, const char **attr) {
XMLObj * obj = alloc_obj(el);
if (!obj) {
obj = new XMLObj();
}
if (!obj->xml_start(cur_obj, el, attr))
return false;
if (cur_obj) {
cur_obj->add_child(el, obj);
} else {
children.insert(pair<string, XMLObj *>(el, obj));
}
cur_obj = obj;
objs.push_back(obj);
return true;
}
static void xml_end(void *data, const char *el) {
RGWXMLParser *handler = (RGWXMLParser *)data;
if (!handler->xml_end(el))
handler->set_failure();
}
bool RGWXMLParser::xml_end(const char *el) {
XMLObj *parent_obj = cur_obj->get_parent();
if (!cur_obj->xml_end(el))
return false;
cur_obj = parent_obj;
return true;
}
static void handle_data(void *data, const char *s, int len)
{
RGWXMLParser *handler = (RGWXMLParser *)data;
handler->handle_data(s, len);
}
void RGWXMLParser::handle_data(const char *s, int len)
{
cur_obj->xml_handle_data(s, len);
}
bool RGWXMLParser::init()
{
if (!p) {
return false;
}
XML_SetElementHandler(p, ::xml_start, ::xml_end);
XML_SetCharacterDataHandler(p, ::handle_data);
XML_SetUserData(p, (void *)this);
return true;
}
bool RGWXMLParser::parse(const char *_buf, int len, int done)
{
int pos = buf_len;
buf = (char *)realloc(buf, buf_len + len);
if (!buf)
return false;
memcpy(&buf[buf_len], _buf, len);
buf_len += len;
success = true;
if (!XML_Parse(p, &buf[pos], len, done)) {
fprintf(stderr, "Parse error at line %d:\n%s\n",
(int)XML_GetCurrentLineNumber(p),
XML_ErrorString(XML_GetErrorCode(p)));
success = false;
}
return success;
}
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