xnode_prop_ns_vprintf(xnode_t *element, const char *uri, const char *name, const char *fmt, va_list args) { char buf[1024]; va_list args2; char *value; bool result; VA_COPY(args2, args); if (str_vbprintf(buf, sizeof buf, fmt, args2) >= sizeof buf - 1) { value = h_strdup_vprintf(fmt, args); } else { value = buf; } va_end(args2); result = xnode_prop_ns_set(element, uri, name, value); if (value != buf) hfree(value); return result; }
/** * Set property in element node (no namespace). * * If there is an existing property on the node, the previous content is * replaced by the new one. * * @param element the element node * @param name the property name * @param value the property value (copied) * * @return TRUE if this was a new property, FALSE if we replaced content. */ bool xnode_prop_set(xnode_t *element, const char *name, const char *value) { return xnode_prop_ns_set(element, NULL, name, value); }
/** * Initiate a SOAP remote procedure call. * * Call will be launched asynchronously, not immediately upon return so that * callbacks are never called on the same stack frame and to allow further * options to be set on the handle before the call begins. * * Initially the request is sent as a regular POST. It is possible to force * the usage of the HTTP Extension Framework by using the SOAP_RPC_O_MAN_FORCE * option, in which case an M-POST will be sent with the proper SOAP Man: * header. Finally, automatic retry of the request can be requested via the * SOAP_RPC_O_MAN_RETRY option: it will start with POST and switch to M-POST * on 405 or 510 errors. * * @param url the HTTP URL to contact for the RPC * @param action the SOAP action to perform * @param maxlen maximum length of data we accept to receive * @param options user-supplied options * @param xn SOAP RPC data payload (XML tree root, will be freed) * @param soap_ns requested SOAP namespace prefix, NULL to use default * @param reply_cb callback to invoke when we get a reply * @param error_cb callback to invoke on error * @param arg additional user-defined callback parameter * * @return a SOAP RPC handle, NULL if the request cannot be initiated (XML * payload too large). In any case, the XML tree is freed. */ soap_rpc_t * soap_rpc(const char *url, const char *action, size_t maxlen, guint32 options, xnode_t *xn, const char *soap_ns, soap_reply_cb_t reply_cb, soap_error_cb_t error_cb, void *arg) { soap_rpc_t *sr; xnode_t *root, *body; pmsg_t *mb; ostream_t *os; gboolean failed = FALSE; g_assert(url != NULL); g_assert(action != NULL); /* * Create the SOAP XML request. */ root = xnode_new_element(NULL, SOAP_NAMESPACE, SOAP_X_ENVELOPE); xnode_add_namespace(root, soap_ns ? soap_ns : "SOAP", SOAP_NAMESPACE); xnode_prop_ns_set(root, SOAP_NAMESPACE, SOAP_X_ENC_STYLE, SOAP_ENCODING); body = xnode_new_element(root, SOAP_NAMESPACE, SOAP_X_BODY); xnode_add_child(body, xn); /* * Serialize the XML tree to a PDU message buffer. */ mb = pmsg_new(PMSG_P_DATA, NULL, SOAP_MAX_PAYLOAD); os = ostream_open_pmsg(mb); xfmt_tree(root, os, XFMT_O_NO_INDENT); if (!ostream_close(os)) { failed = TRUE; g_warning("SOAP unable to serialize payload within %d bytes", SOAP_MAX_PAYLOAD); if (GNET_PROPERTY(soap_debug) > 1) xfmt_tree_dump(root, stderr); } /* * Free the XML tree, including the supplied user nodes. */ xnode_tree_free(root); if (failed) { pmsg_free(mb); return NULL; } /* * Serialization of the XML payload was successful, prepare the * asynchronous SOAP request. */ sr = soap_rpc_alloc(); sr->url = atom_str_get(url); sr->action = atom_str_get(action); sr->maxlen = maxlen; sr->content_len = maxlen; /* Until we see a Content-Length */ sr->options = options; sr->mb = mb; sr->reply_cb = reply_cb; sr->error_cb = error_cb; sr->arg = arg; /* * Make sure the error callback is not called synchronously, and give * them time to supply other options after creating the request before * it starts. */ sr->delay_ev = cq_main_insert(1, soap_rpc_launch, sr); return sr; }