xmlAttrPtr get_attribute_ex(xmlAttrPtr node, char *name, char *ns) {
while (node!=NULL) {
if (attr_is_equal_ex(node, name, ns)) {
return node;
}
node = node->next;
}
return NULL;
}
/* SOAP client calls this function to parse response from SOAP server */
bool parse_packet_soap(SoapClient *obj, const char *buffer,
int buffer_size,
std::shared_ptr<sdlFunction> fn, const char *fn_name,
Variant &return_value, Array& soap_headers) {
char* envelope_ns = nullptr;
xmlNodePtr trav, env, head, body, resp, cur, fault;
xmlAttrPtr attr;
int param_count = 0;
int soap_version = SOAP_1_1;
sdlSoapBindingFunctionHeaderMap *hdrs = nullptr;
assert(return_value.asTypedValue()->m_type == KindOfUninit);
return_value.asTypedValue()->m_type = KindOfNull;
/* Response for one-way opearation */
if (buffer_size == 0) {
return true;
}
/* Parse XML packet */
xmlDocPtr response = soap_xmlParseMemory(buffer, buffer_size);
if (!response) {
add_soap_fault(obj, "Client", "looks like we got no XML document");
return false;
}
if (xmlGetIntSubset(response) != nullptr) {
add_soap_fault(obj, "Client", "DTD are not supported by SOAP");
xmlFreeDoc(response);
return false;
}
/* Get <Envelope> element */
env = nullptr;
trav = response->children;
while (trav != nullptr) {
if (trav->type == XML_ELEMENT_NODE) {
if (!env && node_is_equal_ex(trav,"Envelope", SOAP_1_1_ENV_NAMESPACE)) {
env = trav;
envelope_ns = SOAP_1_1_ENV_NAMESPACE;
soap_version = SOAP_1_1;
} else if (!env &&
node_is_equal_ex(trav, "Envelope", SOAP_1_2_ENV_NAMESPACE)) {
env = trav;
envelope_ns = SOAP_1_2_ENV_NAMESPACE;
soap_version = SOAP_1_2;
} else {
add_soap_fault(obj, "VersionMismatch", "Wrong Version");
xmlFreeDoc(response);
return false;
}
}
trav = trav->next;
}
if (env == nullptr) {
add_soap_fault(obj, "Client",
"looks like we got XML without \"Envelope\" element");
xmlFreeDoc(response);
return false;
}
attr = env->properties;
while (attr != nullptr) {
if (attr->ns == nullptr) {
add_soap_fault(obj, "Client",
"A SOAP Envelope element cannot have non Namespace "
"qualified attributes");
xmlFreeDoc(response);
return false;
}
if (attr_is_equal_ex(attr, "encodingStyle", SOAP_1_2_ENV_NAMESPACE)) {
if (soap_version == SOAP_1_2) {
add_soap_fault(obj, "Client",
"encodingStyle cannot be specified on the Envelope");
xmlFreeDoc(response);
return false;
}
if (strcmp((char*)attr->children->content, SOAP_1_1_ENC_NAMESPACE)) {
add_soap_fault(obj, "Client", "Unknown data encoding style");
xmlFreeDoc(response);
return false;
}
}
attr = attr->next;
}
/* Get <Header> element */
head = nullptr;
trav = env->children;
while (trav != nullptr && trav->type != XML_ELEMENT_NODE) {
trav = trav->next;
}
if (trav != nullptr && node_is_equal_ex(trav,"Header",envelope_ns)) {
head = trav;
trav = trav->next;
}
/* Get <Body> element */
body = nullptr;
while (trav != nullptr && trav->type != XML_ELEMENT_NODE) {
trav = trav->next;
}
if (trav != nullptr && node_is_equal_ex(trav,"Body",envelope_ns)) {
body = trav;
trav = trav->next;
}
while (trav != nullptr && trav->type != XML_ELEMENT_NODE) {
trav = trav->next;
}
if (body == nullptr) {
add_soap_fault(obj, "Client", "Body must be present in a SOAP envelope");
xmlFreeDoc(response);
return false;
}
attr = body->properties;
while (attr != nullptr) {
if (attr->ns == nullptr) {
if (soap_version == SOAP_1_2) {
add_soap_fault(obj, "Client",
"A SOAP Body element cannot have non Namespace "
"qualified attributes");
xmlFreeDoc(response);
return false;
}
} else if (attr_is_equal_ex(attr,"encodingStyle",SOAP_1_2_ENV_NAMESPACE)) {
if (soap_version == SOAP_1_2) {
add_soap_fault(obj, "Client",
"encodingStyle cannot be specified on the Body");
xmlFreeDoc(response);
return false;
}
if (strcmp((char*)attr->children->content, SOAP_1_1_ENC_NAMESPACE)) {
add_soap_fault(obj, "Client", "Unknown data encoding style");
xmlFreeDoc(response);
return false;
}
}
attr = attr->next;
}
if (trav != nullptr && soap_version == SOAP_1_2) {
add_soap_fault(obj, "Client",
"A SOAP 1.2 envelope can contain only Header and Body");
xmlFreeDoc(response);
return false;
}
if (head != nullptr) {
attr = head->properties;
while (attr != nullptr) {
if (attr->ns == nullptr) {
add_soap_fault(obj, "Client",
"A SOAP Header element cannot have non Namespace "
"qualified attributes");
xmlFreeDoc(response);
return false;
}
if (attr_is_equal_ex(attr, "encodingStyle", SOAP_1_2_ENV_NAMESPACE)) {
if (soap_version == SOAP_1_2) {
add_soap_fault(obj, "Client",
"encodingStyle cannot be specified on the Header");
xmlFreeDoc(response);
return false;
}
if (strcmp((char*)attr->children->content, SOAP_1_1_ENC_NAMESPACE)) {
add_soap_fault(obj, "Client", "Unknown data encoding style");
xmlFreeDoc(response);
return false;
}
}
attr = attr->next;
}
}
/* Check if <Body> contains <Fault> element */
fault = get_node_ex(body->children,"Fault",envelope_ns);
if (fault != nullptr) {
char *faultcode = nullptr;
String faultstring, faultactor;
Variant details;
xmlNodePtr tmp;
if (soap_version == SOAP_1_1) {
tmp = get_node(fault->children, "faultcode");
if (tmp != nullptr && tmp->children != nullptr) {
faultcode = (char*)tmp->children->content;
}
tmp = get_node(fault->children, "faultstring");
if (tmp != nullptr && tmp->children != nullptr) {
Variant zv = master_to_zval(get_conversion(KindOfString), tmp);
faultstring = zv.toString();
}
tmp = get_node(fault->children, "faultactor");
if (tmp != nullptr && tmp->children != nullptr) {
Variant zv = master_to_zval(get_conversion(KindOfString), tmp);
faultactor = zv.toString();
}
tmp = get_node(fault->children, "detail");
if (tmp != nullptr) {
details = master_to_zval(encodePtr(), tmp);
}
} else {
tmp = get_node(fault->children, "Code");
if (tmp != nullptr && tmp->children != nullptr) {
tmp = get_node(tmp->children, "Value");
if (tmp != nullptr && tmp->children != nullptr) {
faultcode = (char*)tmp->children->content;
}
}
tmp = get_node(fault->children,"Reason");
if (tmp != nullptr && tmp->children != nullptr) {
/* TODO: lang attribute */
tmp = get_node(tmp->children,"Text");
if (tmp != nullptr && tmp->children != nullptr) {
Variant zv = master_to_zval(get_conversion(KindOfString), tmp);
faultstring = zv.toString();
}
}
tmp = get_node(fault->children,"Detail");
if (tmp != nullptr) {
details = master_to_zval(encodePtr(), tmp);
}
}
obj->m_soap_fault =
SystemLib::AllocSoapFaultObject(String(faultcode, CopyString),
faultstring,
faultactor,
details);
xmlFreeDoc(response);
return false;
}
/* Parse content of <Body> element */
return_value = Array::Create();
resp = body->children;
while (resp != nullptr && resp->type != XML_ELEMENT_NODE) {
resp = resp->next;
}
if (resp != nullptr) {
if (fn && fn->binding && fn->binding->bindingType == BINDING_SOAP) {
/* Function has WSDL description */
sdlParamPtr h_param, param;
xmlNodePtr val = nullptr;
const char *name, *ns = nullptr;
Variant tmp(Variant::NullInit{});
sdlSoapBindingFunctionPtr fnb =
(sdlSoapBindingFunctionPtr)fn->bindingAttributes;
int res_count;
hdrs = &fnb->output.headers;
if (!fn->responseParameters.empty()) {
res_count = fn->responseParameters.size();
for (unsigned int i = 0; i < fn->responseParameters.size(); i++) {
h_param = fn->responseParameters[i];
param = h_param;
if (fnb->style == SOAP_DOCUMENT) {
if (param->element) {
name = param->element->name.c_str();
ns = param->element->namens.c_str();
/*
name = param->encode->details.type_str;
ns = param->encode->details.ns;
*/
} else {
name = param->paramName.c_str();
}
} else {
name = fn->responseName.c_str();
/* ns = ? */
}
/* Get value of parameter */
cur = get_node_ex(resp, (char*)name, (char*)ns);
if (!cur) {
cur = get_node(resp, (char*)name);
/* TODO: produce warning invalid ns */
}
if (!cur && fnb->style == SOAP_RPC) {
cur = resp;
}
if (cur) {
if (fnb->style == SOAP_DOCUMENT) {
val = cur;
} else {
val = get_node(cur->children, (char*)param->paramName.c_str());
if (res_count == 1) {
if (val == nullptr) {
val = get_node(cur->children, "return");
}
if (val == nullptr) {
val = get_node(cur->children, "result");
}
if (val == nullptr && cur->children && !cur->children->next) {
val = cur->children;
}
}
}
}
if (!val) {
/* TODO: may be "nil" is not OK? */
/*
add_soap_fault(obj, "Client", "Can't find response data");
xmlFreeDoc(response);
return false;
*/
} else {
/* Decoding value of parameter */
if (param != nullptr) {
tmp = master_to_zval(param->encode, val);
} else {
tmp = master_to_zval(encodePtr(), val);
}
}
return_value.toArrRef().set(String(param->paramName), tmp);
param_count++;
}
}
} else {
/* Function hasn't WSDL description */
xmlNodePtr val;
val = resp->children;
while (val != nullptr) {
while (val && val->type != XML_ELEMENT_NODE) {
val = val->next;
}
if (val != nullptr) {
if (!node_is_equal_ex(val,"result",RPC_SOAP12_NAMESPACE)) {
Variant tmp = master_to_zval(encodePtr(), val);
if (val->name) {
String key((char*)val->name, CopyString);
if (return_value.toCArrRef().exists(key)) {
auto& lval = return_value.toArrRef().lvalAt(key);
if (!lval.isArray()) lval = lval.toArray();
lval.toArrRef().append(tmp);
} else if (val->next && get_node(val->next, (char*)val->name)) {
Array arr = Array::Create();
arr.append(tmp);
return_value.toArrRef().set(key, arr);
} else {
return_value.toArrRef().set(key, tmp);
}
} else {
return_value.toArrRef().append(tmp);
}
++param_count;
}
val = val->next;
}
}
}
}
if (return_value.isArray()) {
if (param_count == 0) {
return_value = init_null();
} else if (param_count == 1) {
Array arr = return_value.toArray();
ArrayIter iter(arr);
return_value = iter.second();
}
}
if (head) {
trav = head->children;
while (trav) {
if (trav->type == XML_ELEMENT_NODE) {
encodePtr enc;
if (hdrs && !hdrs->empty()) {
std::string key;
if (trav->ns) {
key += (char*)trav->ns->href;
key += ':';
}
key += (char*)trav->name;
sdlSoapBindingFunctionHeaderMap::const_iterator iter =
hdrs->find(key);
if (iter != hdrs->end()) {
enc = iter->second->encode;
}
}
soap_headers.set(String((char*)trav->name, CopyString),
master_to_zval(enc, trav));
}
trav = trav->next;
}
}
xmlFreeDoc(response);
return true;
}