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php-src/ext/soap/php_packet_soap.c

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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Brad Lafountain <rodif_bl@yahoo.com> |
| Shane Caraveo <shane@caraveo.com> |
| Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#include "php_soap.h"
/* SOAP client calls this function to parse response from SOAP server */
bool parse_packet_soap(zval *this_ptr, char *buffer, int buffer_size, sdlFunctionPtr fn, char *fn_name, zval *return_value, zval *soap_headers)
{
char* envelope_ns = NULL;
xmlDocPtr response;
xmlNodePtr trav, env, head, body, resp, cur, fault;
xmlAttrPtr attr;
int param_count = 0;
int soap_version = SOAP_1_1;
HashTable *hdrs = NULL;
ZVAL_NULL(return_value);
/* Response for one-way opearation */
if (buffer_size == 0) {
return true;
}
/* Parse XML packet */
response = soap_xmlParseMemory(buffer, buffer_size);
if (!response) {
add_soap_fault(this_ptr, "Client", "looks like we got no XML document", NULL, NULL);
return false;
}
if (xmlGetIntSubset(response) != NULL) {
add_soap_fault(this_ptr, "Client", "DTD are not supported by SOAP", NULL, NULL);
xmlFreeDoc(response);
return false;
}
/* Get <Envelope> element */
env = NULL;
trav = response->children;
while (trav != NULL) {
if (trav->type == XML_ELEMENT_NODE) {
if (env == NULL && 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 == NULL && 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(this_ptr, "VersionMismatch", "Wrong Version", NULL, NULL);
xmlFreeDoc(response);
return false;
}
}
trav = trav->next;
}
if (env == NULL) {
add_soap_fault(this_ptr, "Client", "looks like we got XML without \"Envelope\" element", NULL, NULL);
xmlFreeDoc(response);
return false;
}
attr = env->properties;
while (attr != NULL) {
if (attr->ns == NULL) {
add_soap_fault(this_ptr, "Client", "A SOAP Envelope element cannot have non Namespace qualified attributes", NULL, NULL);
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(this_ptr, "Client", "encodingStyle cannot be specified on the Envelope", NULL, NULL);
xmlFreeDoc(response);
return false;
} else if (strcmp((char*)attr->children->content, SOAP_1_1_ENC_NAMESPACE) != 0) {
add_soap_fault(this_ptr, "Client", "Unknown data encoding style", NULL, NULL);
xmlFreeDoc(response);
return false;
}
}
attr = attr->next;
}
/* Get <Header> element */
head = NULL;
trav = env->children;
while (trav != NULL && trav->type != XML_ELEMENT_NODE) {
trav = trav->next;
}
if (trav != NULL && node_is_equal_ex(trav,"Header",envelope_ns)) {
head = trav;
trav = trav->next;
}
/* Get <Body> element */
body = NULL;
while (trav != NULL && trav->type != XML_ELEMENT_NODE) {
trav = trav->next;
}
if (trav != NULL && node_is_equal_ex(trav,"Body",envelope_ns)) {
body = trav;
trav = trav->next;
}
while (trav != NULL && trav->type != XML_ELEMENT_NODE) {
trav = trav->next;
}
if (body == NULL) {
add_soap_fault(this_ptr, "Client", "Body must be present in a SOAP envelope", NULL, NULL);
xmlFreeDoc(response);
return false;
}
attr = body->properties;
while (attr != NULL) {
if (attr->ns == NULL) {
if (soap_version == SOAP_1_2) {
add_soap_fault(this_ptr, "Client", "A SOAP Body element cannot have non Namespace qualified attributes", NULL, NULL);
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(this_ptr, "Client", "encodingStyle cannot be specified on the Body", NULL, NULL);
xmlFreeDoc(response);
return false;
} else if (strcmp((char*)attr->children->content, SOAP_1_1_ENC_NAMESPACE) != 0) {
add_soap_fault(this_ptr, "Client", "Unknown data encoding style", NULL, NULL);
xmlFreeDoc(response);
return false;
}
}
attr = attr->next;
}
if (trav != NULL && soap_version == SOAP_1_2) {
add_soap_fault(this_ptr, "Client", "A SOAP 1.2 envelope can contain only Header and Body", NULL, NULL);
xmlFreeDoc(response);
return false;
}
if (head != NULL) {
attr = head->properties;
while (attr != NULL) {
if (attr->ns == NULL) {
add_soap_fault(this_ptr, "Client", "A SOAP Header element cannot have non Namespace qualified attributes", NULL, NULL);
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(this_ptr, "Client", "encodingStyle cannot be specified on the Header", NULL, NULL);
xmlFreeDoc(response);
return false;
} else if (strcmp((char*)attr->children->content, SOAP_1_1_ENC_NAMESPACE) != 0) {
add_soap_fault(this_ptr, "Client", "Unknown data encoding style", NULL, NULL);
xmlFreeDoc(response);
return false;
}
}
attr = attr->next;
}
}
/* Check if <Body> contains <Fault> element */
fault = get_node_ex(body->children,"Fault",envelope_ns);
if (fault != NULL) {
char *faultcode = NULL;
zend_string *faultstring = NULL, *faultactor = NULL;
zval details;
xmlNodePtr tmp;
ZVAL_UNDEF(&details);
if (soap_version == SOAP_1_1) {
tmp = get_node(fault->children, "faultcode");
if (tmp != NULL && tmp->children != NULL) {
faultcode = (char*)tmp->children->content;
}
tmp = get_node(fault->children, "faultstring");
if (tmp != NULL && tmp->children != NULL) {
zval zv;
master_to_zval(&zv, get_conversion(IS_STRING), tmp);
faultstring = Z_STR(zv);
}
tmp = get_node(fault->children, "faultactor");
if (tmp != NULL && tmp->children != NULL) {
zval zv;
master_to_zval(&zv, get_conversion(IS_STRING), tmp);
faultactor = Z_STR(zv);
}
tmp = get_node(fault->children, "detail");
if (tmp != NULL) {
master_to_zval(&details, NULL, tmp);
}
} else {
tmp = get_node(fault->children, "Code");
if (tmp != NULL && tmp->children != NULL) {
tmp = get_node(tmp->children, "Value");
if (tmp != NULL && tmp->children != NULL) {
faultcode = (char*)tmp->children->content;
}
}
tmp = get_node(fault->children,"Reason");
if (tmp != NULL && tmp->children != NULL) {
/* TODO: lang attribute */
tmp = get_node(tmp->children,"Text");
if (tmp != NULL && tmp->children != NULL) {
zval zv;
master_to_zval(&zv, get_conversion(IS_STRING), tmp);
faultstring = Z_STR(zv);
}
}
tmp = get_node(fault->children,"Detail");
if (tmp != NULL) {
master_to_zval(&details, NULL, tmp);
}
}
add_soap_fault(this_ptr, faultcode, faultstring ? ZSTR_VAL(faultstring) : NULL, faultactor ? ZSTR_VAL(faultactor) : NULL, &details);
if (faultstring) {
zend_string_release_ex(faultstring, 0);
}
if (faultactor) {
zend_string_release_ex(faultactor, 0);
}
if (Z_REFCOUNTED(details)) {
Z_DELREF(details);
}
xmlFreeDoc(response);
return false;
}
/* Parse content of <Body> element */
array_init(return_value);
resp = body->children;
while (resp != NULL && resp->type != XML_ELEMENT_NODE) {
resp = resp->next;
}
if (resp != NULL) {
if (fn != NULL && fn->binding && fn->binding->bindingType == BINDING_SOAP) {
/* Function has WSDL description */
sdlParamPtr param = NULL;
xmlNodePtr val = NULL;
char *name, *ns = NULL;
zval tmp;
sdlSoapBindingFunctionPtr fnb = (sdlSoapBindingFunctionPtr)fn->bindingAttributes;
int res_count;
hdrs = fnb->output.headers;
if (fn->responseParameters) {
res_count = zend_hash_num_elements(fn->responseParameters);
ZEND_HASH_FOREACH_PTR(fn->responseParameters, param) {
if (fnb->style == SOAP_DOCUMENT) {
if (param->element) {
name = param->element->name;
ns = param->element->namens;
/*
name = param->encode->details.type_str;
ns = param->encode->details.ns;
*/
} else {
name = param->paramName;
}
} else {
name = fn->responseName;
/* ns = ? */
}
/* Get value of parameter */
cur = get_node_ex(resp, name, ns);
if (!cur) {
cur = get_node(resp, 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, param->paramName);
if (res_count == 1) {
if (val == NULL) {
val = get_node(cur->children, "return");
}
if (val == NULL) {
val = get_node(cur->children, "result");
}
if (val == NULL && cur->children && cur->children->next == NULL) {
val = cur->children;
}
}
}
}
if (!val) {
/* TODO: may be "nil" is not OK? */
ZVAL_NULL(&tmp);
/*
add_soap_fault(this_ptr, "Client", "Can't find response data", NULL, NULL);
xmlFreeDoc(response);
return false;
*/
} else {
/* Decoding value of parameter */
if (param != NULL) {
master_to_zval(&tmp, param->encode, val);
} else {
master_to_zval(&tmp, NULL, val);
}
}
add_assoc_zval(return_value, param->paramName, &tmp);
param_count++;
} ZEND_HASH_FOREACH_END();
}
} else {
/* Function has no WSDL description */
xmlNodePtr val;
val = resp->children;
while (val != NULL) {
while (val && val->type != XML_ELEMENT_NODE) {
val = val->next;
}
if (val != NULL) {
if (!node_is_equal_ex(val,"result",RPC_SOAP12_NAMESPACE)) {
zval tmp;
zval *arr;
master_to_zval(&tmp, NULL, val);
if (val->name) {
if ((arr = zend_hash_str_find(Z_ARRVAL_P(return_value), (char*)val->name, strlen((char*)val->name))) != NULL) {
add_next_index_zval(arr, &tmp);
} else if (val->next && get_node(val->next, (char*)val->name)) {
zval arr;
array_init(&arr);
add_next_index_zval(&arr, &tmp);
add_assoc_zval(return_value, (char*)val->name, &arr);
} else {
add_assoc_zval(return_value, (char*)val->name, &tmp);
}
} else {
add_next_index_zval(return_value, &tmp);
}
++param_count;
}
val = val->next;
}
}
}
}
if (Z_TYPE_P(return_value) == IS_ARRAY) {
if (param_count == 0) {
zend_array_destroy(Z_ARR_P(return_value));
ZVAL_NULL(return_value);
} else if (param_count == 1) {
zval *tmp;
zend_hash_internal_pointer_reset(Z_ARRVAL_P(return_value));
tmp = zend_hash_get_current_data(Z_ARRVAL_P(return_value));
if (!Z_REFCOUNTED_P(return_value)) {
ZVAL_COPY(return_value, tmp);
} else {
zend_refcounted *garbage = Z_COUNTED_P(return_value);
ZVAL_COPY(return_value, tmp);
rc_dtor_func(garbage);
}
}
}
if (soap_headers && head) {
trav = head->children;
while (trav != NULL) {
if (trav->type == XML_ELEMENT_NODE) {
encodePtr enc = NULL;
zval val;
if (hdrs) {
smart_str key = {0};
sdlSoapBindingFunctionHeaderPtr hdr;
if (trav->ns) {
smart_str_appends(&key, (char*)trav->ns->href);
smart_str_appendc(&key,':');
}
smart_str_appends(&key, (char*)trav->name);
smart_str_0(&key);
if ((hdr = zend_hash_find_ptr(hdrs, key.s)) != NULL) {
enc = hdr->encode;
}
smart_str_free(&key);
}
master_to_zval(&val, enc, trav);
add_assoc_zval(soap_headers, (char*)trav->name, &val);
}
trav = trav->next;
}
}
xmlFreeDoc(response);
return true;
}
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