2 * Copyright (c) 2002-2003, Index Data.
3 * See the file LICENSE for details.
5 * $Id: soap.c,v 1.7 2003-03-18 13:34:37 adam Exp $
11 #include <libxml/parser.h>
12 #include <libxml/tree.h>
14 static const char *soap_v1_1 = "http://schemas.xmlsoap.org/soap/envelope/";
15 static const char *soap_v1_2 = "http://www.w3.org/2001/06/soap-envelope";
17 int z_soap_error(ODR o, Z_SOAP *p,
18 const char *fault_code, const char *fault_string,
21 p->which = Z_SOAP_error;
22 p->u.soap_error = (Z_SOAP_Fault *)
23 odr_malloc(o, sizeof(*p->u.soap_error));
24 p->u.soap_error->fault_code = odr_strdup(o, fault_code);
25 p->u.soap_error->fault_string = odr_strdup(o, fault_string);
27 p->u.soap_error->details = odr_strdup(o, details);
29 p->u.soap_error->details = 0;
33 int z_soap_codec(ODR o, Z_SOAP **pp,
34 char **content_buf, int *content_len,
35 Z_SOAP_Handler *handlers)
37 return z_soap_codec_enc(o, pp, content_buf, content_len, handlers, 0);
40 int z_soap_codec_enc(ODR o, Z_SOAP **pp,
41 char **content_buf, int *content_len,
42 Z_SOAP_Handler *handlers,
45 if (o->direction == ODR_DECODE)
52 if (!content_buf || !*content_buf || !content_len)
55 *pp = p = (Z_SOAP *) odr_malloc(o, sizeof(*p));
58 doc = xmlParseMemory(*content_buf, *content_len);
60 return z_soap_error(o, p, "SOAP-ENV:Client",
61 "Bad XML Document", 0);
62 /* check that root node is Envelope */
63 ptr = xmlDocGetRootElement(doc);
64 if (!ptr || ptr->type != XML_ELEMENT_NODE ||
65 strcmp(ptr->name, "Envelope") || !ptr->ns)
68 return z_soap_error(o, p, "SOAP-ENV:Client",
69 "No Envelope element", 0);
73 /* determine SOAP version */
74 const char * ns_envelope = ptr->ns->href;
75 if (!strcmp(ns_envelope, soap_v1_1))
77 else if (!strcmp(ns_envelope, soap_v1_2))
82 return z_soap_error(o, p, "SOAP-ENV:Client",
83 "Bad SOAP version", 0);
87 while(ptr && ptr->type == XML_TEXT_NODE)
89 if (ptr && ptr->type == XML_ELEMENT_NODE &&
90 !strcmp(ptr->ns->href, p->ns) &&
91 !strcmp(ptr->name, "Header"))
94 while(ptr && ptr->type == XML_TEXT_NODE)
97 /* check that Body is present */
98 if (!ptr || ptr->type != XML_ELEMENT_NODE ||
99 strcmp(ptr->name, "Body"))
102 return z_soap_error(o, p, "SOAP-ENV:Client",
103 "SOAP Body element not found", 0);
105 if (strcmp(ptr->ns->href, p->ns))
108 return z_soap_error(o, p, "SOAP-ENV:Client",
109 "SOAP bad NS for Body element", 0);
113 while (ptr && ptr->type == XML_TEXT_NODE)
115 if (!ptr || ptr->type != XML_ELEMENT_NODE)
118 return z_soap_error(o, p, "SOAP-ENV:Client",
119 "SOAP No content for Body", 0);
121 /* check for fault package */
122 if (!strcmp(ptr->ns->href, p->ns)
123 && !strcmp(ptr->name, "Fault") && ptr->children)
127 p->which = Z_SOAP_fault;
128 p->u.fault = odr_malloc(o, sizeof(*p->u.fault));
129 p->u.fault->fault_code = 0;
130 p->u.fault->fault_string = 0;
131 p->u.fault->details = 0;
134 if (ptr->children && ptr->children->type == XML_TEXT_NODE)
136 if (!strcmp(ptr->name, "faultcode"))
137 p->u.fault->fault_code =
138 odr_strdup(o, ptr->children->content);
139 if (!strcmp(ptr->name, "faultstring"))
140 p->u.fault->fault_string =
141 odr_strdup(o, ptr->children->content);
142 if (!strcmp(ptr->name, "details"))
143 p->u.fault->details =
144 odr_strdup(o, ptr->children->content);
152 for (i = 0; handlers[i].ns; i++)
153 if (!strcmp(ptr->ns->href, handlers[i].ns))
157 void *handler_data = 0;
158 ret = (*handlers[i].f)(o, pptr, &handler_data,
159 handlers[i].client_data,
161 if (ret || !handler_data)
162 z_soap_error(o, p, "SOAP-ENV:Client",
163 "SOAP Handler returned error", 0);
166 p->which = Z_SOAP_generic;
167 p->u.generic = odr_malloc(o, sizeof(*p->u.generic));
168 p->u.generic->no = i;
169 p->u.generic->ns = handlers[i].ns;
170 p->u.generic->p = handler_data;
175 ret = z_soap_error(o, p, "SOAP-ENV:Client",
176 "No handler for NS", ptr->ns->href);
182 else if (o->direction == ODR_ENCODE)
186 xmlNodePtr envelope_ptr, body_ptr;
188 xmlDocPtr doc = xmlNewDoc("1.0");
190 envelope_ptr = xmlNewNode(0, "Envelope");
191 ns_env = xmlNewNs(envelope_ptr, p->ns, "SOAP-ENV");
192 xmlSetNs(envelope_ptr, ns_env);
194 body_ptr = xmlNewChild(envelope_ptr, ns_env, "Body", 0);
195 xmlDocSetRootElement(doc, envelope_ptr);
197 if (p->which == Z_SOAP_fault || p->which == Z_SOAP_error)
199 Z_SOAP_Fault *f = p->u.fault;
200 xmlNodePtr fault_ptr = xmlNewChild(body_ptr, ns_env, "Fault", 0);
201 xmlNewChild(fault_ptr, ns_env, "faultcode", f->fault_code);
202 xmlNewChild(fault_ptr, ns_env, "faultstring", f->fault_string);
204 xmlNewChild(fault_ptr, ns_env, "details", f->details);
206 else if (p->which == Z_SOAP_generic)
208 int ret, no = p->u.generic->no;
210 ret = (*handlers[no].f)(o, body_ptr, &p->u.generic->p,
211 handlers[no].client_data,
216 if (p->which == Z_SOAP_generic && !strcmp(p->ns, "SRU"))
218 xmlDocSetRootElement(doc, body_ptr->children);
225 xmlDocDumpMemoryEnc(doc, &buf_out, &len_out, encoding);
227 xmlDocDumpMemory(doc, &buf_out, &len_out);
228 *content_buf = (char *) odr_malloc(o, len_out);
229 *content_len = len_out;
230 memcpy(*content_buf, buf_out, len_out);
239 int z_soap_codec(ODR o, Z_SOAP **pp,
240 char **content_buf, int *content_len,
241 Z_SOAP_Handler *handlers)
243 const char *err_xml =
244 "<?xml version=\"1.0\"?>\n"
246 " xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\">\n"
247 "\t<SOAP-ENV:Body>\n"
248 "\t\t<SOAP-ENV:Fault>\n"
249 "\t\t\t<faultcode>SOAP-ENV:Server</faultcode>\n"
250 "\t\t\t<faultstring>HTTP error</faultstring>\n"
251 "\t\t\t<detail>SOAP not supported in this YAZ configuration</detail>\n"
252 "\t\t</SOAP-ENV:Fault>\n"
253 "\t</SOAP-ENV:Body>\n"
254 "</SOAP-ENV:Envelope>\n";
255 if (o->direction == ODR_ENCODE)
257 *content_buf = err_xml;
258 *content_len = strlen(err_xml);