/****f* xml_element/xml_elem_free
* NAME
* xml_elem_free
* SYNOPSIS
* void xml_elem_free(xml_element* root)
* FUNCTION
* free an xml element and all of its child elements
* INPUTS
* root - the root of an xml tree you would like to free
* RESULT
* void
* NOTES
* SEE ALSO
* xml_elem_free_non_recurse ()
* xml_elem_new ()
* SOURCE
*/
void xml_elem_free(xml_element* root) {
if(root) {
xml_element* kids = Q_Head(&root->children);
while(kids) {
xml_elem_free(kids);
kids = Q_Next(&root->children);
}
xml_elem_free_non_recurse(root);
}
}
/****f* xml_element/xml_elem_parse_buf
* NAME
* xml_elem_parse_buf
* SYNOPSIS
* xml_element* xml_elem_parse_buf(const char* in_buf, int len, XML_ELEM_INPUT_OPTIONS options, XML_ELEM_ERROR error)
* FUNCTION
* parse a buffer containing XML into an xml_element in-memory tree
* INPUTS
* in_buf - buffer containing XML document
* len - length of buffer
* options - input options. optional
* error - error result data. optional. check if result is null.
* RESULT
* void
* NOTES
* The returned data must be free'd by caller
* SEE ALSO
* xml_elem_serialize_to_string ()
* xml_elem_free ()
* SOURCE
*/
xml_element* xml_elem_parse_buf(const char* in_buf, int len, XML_ELEM_INPUT_OPTIONS options, XML_ELEM_ERROR error)
{
xml_element* xReturn = NULL;
char buf[100] = "";
static STRUCT_XML_ELEM_INPUT_OPTIONS default_opts = {encoding_utf_8};
if(!options) {
options = &default_opts;
}
if(in_buf) {
XML_Parser parser;
xml_elem_data mydata = {0};
parser = XML_ParserCreate(NULL);
mydata.root = xml_elem_new();
mydata.current = mydata.root;
mydata.input_options = options;
mydata.needs_enc_conversion = options->encoding && strcmp(options->encoding, encoding_utf_8);
XML_SetElementHandler(parser, (XML_StartElementHandler)_xmlrpc_startElement, (XML_EndElementHandler)_xmlrpc_endElement);
XML_SetCharacterDataHandler(parser, (XML_CharacterDataHandler)_xmlrpc_charHandler);
/* pass the xml_elem_data struct along */
XML_SetUserData(parser, (void*)&mydata);
if(!len) {
len = strlen(in_buf);
}
/* parse the XML */
if(XML_Parse(parser, in_buf, len, 1) == 0) {
enum XML_Error err_code = XML_GetErrorCode(parser);
int line_num = XML_GetCurrentLineNumber(parser);
int col_num = XML_GetCurrentColumnNumber(parser);
long byte_idx = XML_GetCurrentByteIndex(parser);
/* int byte_total = XML_GetCurrentByteCount(parser); */
const char * error_str = XML_ErrorString(err_code);
if(byte_idx >= 0) {
snprintf(buf,
sizeof(buf),
"\n\tdata beginning %ld before byte index: %s\n",
byte_idx > 10 ? 10 : byte_idx,
in_buf + (byte_idx > 10 ? byte_idx - 10 : byte_idx));
}
/*
fprintf(stderr, "expat reports error code %i\n"
"\tdescription: %s\n"
"\tline: %i\n"
"\tcolumn: %i\n"
"\tbyte index: %ld\n"
"\ttotal bytes: %i\n%s ",
err_code, error_str, line_num,
col_num, byte_idx, byte_total, buf);
*/
/* error condition */
if(error) {
error->parser_code = (long)err_code;
error->line = line_num;
error->column = col_num;
error->byte_index = byte_idx;
error->parser_error = error_str;
}
}
else {
xReturn = (xml_element*)Q_Head(&mydata.root->children);
xReturn->parent = NULL;
}
XML_ParserFree(parser);
xml_elem_free_non_recurse(mydata.root);
}
return xReturn;
}
/* convert XMLRPC_REQUEST to soap xml dom. */
xml_element* SOAP_REQUEST_to_xml_element(XMLRPC_REQUEST request) {
xml_element* root = xml_elem_new();
/* safety first. */
if (root) {
xml_element* body = xml_elem_new();
root->name = strdup("SOAP-ENV:Envelope");
/* silly namespace stuff */
Q_PushTail(&root->attrs, new_attr("xmlns:SOAP-ENV", "http://schemas.xmlsoap.org/soap/envelope/"));
Q_PushTail(&root->attrs, new_attr("xmlns:xsi", "http://www.w3.org/1999/XMLSchema-instance"));
Q_PushTail(&root->attrs, new_attr("xmlns:xsd", "http://www.w3.org/1999/XMLSchema"));
Q_PushTail(&root->attrs, new_attr("xmlns:SOAP-ENC", "http://schemas.xmlsoap.org/soap/encoding/"));
Q_PushTail(&root->attrs, new_attr("xmlns:si", "http://soapinterop.org/xsd"));
Q_PushTail(&root->attrs, new_attr("xmlns:ns6", "http://testuri.org"));
Q_PushTail(&root->attrs, new_attr("SOAP-ENV:encodingStyle", "http://schemas.xmlsoap.org/soap/encoding/"));
/* Q_PushHead(&root->attrs, new_attr("xmlns:ks", "http://kitchen.sink.org/soap/everything/under/sun"));
JUST KIDDING!! :-) ----> ------------------------------------------------- */
if (body) {
/* go ahead and serialize first... */
xml_element* el_serialized =
SOAP_to_xml_element_worker(request,
XMLRPC_RequestGetData(request));
/* check for fault, in which case, there is no intermediate element */
if (el_serialized && !strcmp(el_serialized->name, TOKEN_FAULT)) {
Q_PushTail(&body->children, el_serialized);
}
/* usual case: not a fault. Add Response element in between. */
else {
xml_element* rpc = xml_elem_new();
if (rpc) {
const char* methodname = XMLRPC_RequestGetMethodName(request);
XMLRPC_REQUEST_TYPE rtype = XMLRPC_RequestGetRequestType(request);
/* if we are making a request, we want to use the methodname as is. */
if (rtype == xmlrpc_request_call) {
if (methodname) {
rpc->name = strdup(methodname);
}
}
/* if it's a response, we append "Response". Also, given xmlrpc-epi
API/architecture, it's likely that we don't have a methodname for
the response, so we have to check that. */
else {
char buf[128];
snprintf(buf, sizeof(buf), "%s%s",
methodname ? methodname : "",
"Response");
rpc->name = strdup(buf);
}
/* add serialized data to method call/response.
add method call/response to body element */
if (rpc->name) {
if(el_serialized) {
if(Q_Size(&el_serialized->children) && rtype == xmlrpc_request_call) {
xml_element* iter = (xml_element*)Q_Head(&el_serialized->children);
while(iter) {
Q_PushTail(&rpc->children, iter);
iter = (xml_element*)Q_Next(&el_serialized->children);
}
xml_elem_free_non_recurse(el_serialized);
}
else {
Q_PushTail(&rpc->children, el_serialized);
}
}
Q_PushTail(&body->children, rpc);
}
else {
/* no method name?!
TODO: fault here...? */
}
}
}
body->name = strdup("SOAP-ENV:Body");
Q_PushTail(&root->children, body);
}
}
return root;
}
