2 * Canonical XML implementation test program
3 * (http://www.w3.org/TR/2001/REC-xml-c14n-20010315)
5 * See Copyright for the status of this software.
7 * Author: Aleksey Sanin <aleksey@aleksey.com>
10 #if defined(LIBXML_C14N_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)
21 #include <libxml/xmlmemory.h>
22 #include <libxml/parser.h>
23 #include <libxml/xpath.h>
24 #include <libxml/xpathInternals.h>
26 #include <libxml/c14n.h>
29 static void usage(const char *name) {
31 "Usage: %s <mode> <xml-file> [<xpath-expr>] [<inclusive-ns-list>]\n",
33 fprintf(stderr, "where <mode> is one of following:\n");
35 "--with-comments \t XML file canonicalization v1.0 w comments \n");
37 "--without-comments \t XML file canonicalization v1.0 w/o comments\n");
39 "--1-1-with-comments \t XML file canonicalization v1.1 w comments\n");
41 "--1-1-without-comments \t XML file canonicalization v1.1 w/o comments\n");
43 "--exc-with-comments \t Exclusive XML file canonicalization v1.0 w comments\n");
45 "--exc-without-comments\t Exclusive XML file canonicalization v1.0 w/o comments\n");
48 static xmlXPathObjectPtr
49 load_xpath_expr (xmlDocPtr parent_doc, const char* filename);
51 static xmlChar **parse_list(xmlChar *str);
53 /* static void print_xpath_nodes(xmlNodeSetPtr nodes); */
56 test_c14n(const char* xml_filename, int with_comments, int mode,
57 const char* xpath_filename, xmlChar **inclusive_namespaces) {
59 xmlXPathObjectPtr xpath = NULL;
60 xmlChar *result = NULL;
64 * build an XML tree from a the file; we need to add default
65 * attributes and resolve all character and entities references
67 xmlLoadExtDtdDefaultValue = XML_DETECT_IDS | XML_COMPLETE_ATTRS;
68 xmlSubstituteEntitiesDefault(1);
70 doc = xmlReadFile(xml_filename, NULL, XML_PARSE_DTDATTR | XML_PARSE_NOENT);
72 fprintf(stderr, "Error: unable to parse file \"%s\"\n", xml_filename);
77 * Check the document is of the right kind
79 if(xmlDocGetRootElement(doc) == NULL) {
80 fprintf(stderr,"Error: empty document for file \"%s\"\n", xml_filename);
86 * load xpath file if specified
89 xpath = load_xpath_expr(doc, xpath_filename);
91 fprintf(stderr,"Error: unable to evaluate xpath expression\n");
100 /* fprintf(stderr,"File \"%s\" loaded: start canonization\n", xml_filename); */
101 ret = xmlC14NDocDumpMemory(doc,
102 (xpath) ? xpath->nodesetval : NULL,
103 mode, inclusive_namespaces,
104 with_comments, &result);
107 write(1, result, ret);
111 fprintf(stderr,"Error: failed to canonicalize XML file \"%s\" (ret=%d)\n", xml_filename, ret);
112 if(result != NULL) xmlFree(result);
120 if(xpath != NULL) xmlXPathFreeObject(xpath);
126 int main(int argc, char **argv) {
136 * Parse command line and process file
139 fprintf(stderr, "Error: wrong number of arguments.\n");
141 } else if(strcmp(argv[1], "--with-comments") == 0) {
142 ret = test_c14n(argv[2], 1, XML_C14N_1_0, (argc > 3) ? argv[3] : NULL, NULL);
143 } else if(strcmp(argv[1], "--without-comments") == 0) {
144 ret = test_c14n(argv[2], 0, XML_C14N_1_0, (argc > 3) ? argv[3] : NULL, NULL);
145 } else if(strcmp(argv[1], "--1-1-with-comments") == 0) {
146 ret = test_c14n(argv[2], 1, XML_C14N_1_1, (argc > 3) ? argv[3] : NULL, NULL);
147 } else if(strcmp(argv[1], "--1-1-without-comments") == 0) {
148 ret = test_c14n(argv[2], 0, XML_C14N_1_1, (argc > 3) ? argv[3] : NULL, NULL);
149 } else if(strcmp(argv[1], "--exc-with-comments") == 0) {
152 /* load exclusive namespace from command line */
153 list = (argc > 4) ? parse_list((xmlChar *)argv[4]) : NULL;
154 ret = test_c14n(argv[2], 1, XML_C14N_EXCLUSIVE_1_0, (argc > 3) ? argv[3] : NULL, list);
155 if(list != NULL) xmlFree(list);
156 } else if(strcmp(argv[1], "--exc-without-comments") == 0) {
159 /* load exclusive namespace from command line */
160 list = (argc > 4) ? parse_list((xmlChar *)argv[4]) : NULL;
161 ret = test_c14n(argv[2], 0, XML_C14N_EXCLUSIVE_1_0, (argc > 3) ? argv[3] : NULL, list);
162 if(list != NULL) xmlFree(list);
164 fprintf(stderr, "Error: bad option.\n");
174 return((ret >= 0) ? 0 : 1);
178 * Macro used to grow the current buffer.
180 #define growBufferReentrant() { \
182 buffer = (xmlChar **) \
183 xmlRealloc(buffer, buffer_size * sizeof(xmlChar*)); \
184 if (buffer == NULL) { \
185 perror("realloc failed"); \
191 parse_list(xmlChar *str) {
193 xmlChar **out = NULL;
201 len = xmlStrlen(str);
202 if((str[0] == '\'') && (str[len - 1] == '\'')) {
207 * allocate an translation buffer.
210 buffer = (xmlChar **) xmlMalloc(buffer_size * sizeof(xmlChar*));
211 if (buffer == NULL) {
212 perror("malloc failed");
217 while(*str != '\0') {
218 if (out - buffer > buffer_size - 10) {
219 int indx = out - buffer;
221 growBufferReentrant();
225 while(*str != ',' && *str != '\0') ++str;
226 if(*str == ',') *(str++) = '\0';
232 static xmlXPathObjectPtr
233 load_xpath_expr (xmlDocPtr parent_doc, const char* filename) {
234 xmlXPathObjectPtr xpath;
237 xmlXPathContextPtr ctx;
242 * load XPath expr as a file
244 xmlLoadExtDtdDefaultValue = XML_DETECT_IDS | XML_COMPLETE_ATTRS;
245 xmlSubstituteEntitiesDefault(1);
247 doc = xmlReadFile(filename, NULL, XML_PARSE_DTDATTR | XML_PARSE_NOENT);
249 fprintf(stderr, "Error: unable to parse file \"%s\"\n", filename);
254 * Check the document is of the right kind
256 if(xmlDocGetRootElement(doc) == NULL) {
257 fprintf(stderr,"Error: empty document for file \"%s\"\n", filename);
262 node = doc->children;
263 while(node != NULL && !xmlStrEqual(node->name, (const xmlChar *)"XPath")) {
268 fprintf(stderr,"Error: XPath element expected in the file \"%s\"\n", filename);
273 expr = xmlNodeGetContent(node);
275 fprintf(stderr,"Error: XPath content element is NULL \"%s\"\n", filename);
280 ctx = xmlXPathNewContext(parent_doc);
282 fprintf(stderr,"Error: unable to create new context\n");
289 * Register namespaces
293 if(xmlXPathRegisterNs(ctx, ns->prefix, ns->href) != 0) {
294 fprintf(stderr,"Error: unable to register NS with prefix=\"%s\" and href=\"%s\"\n", ns->prefix, ns->href);
296 xmlXPathFreeContext(ctx);
306 xpath = xmlXPathEvalExpression(expr, ctx);
308 fprintf(stderr,"Error: unable to evaluate xpath expression\n");
310 xmlXPathFreeContext(ctx);
315 /* print_xpath_nodes(xpath->nodesetval); */
318 xmlXPathFreeContext(ctx);
325 print_xpath_nodes(xmlNodeSetPtr nodes) {
330 fprintf(stderr, "Error: no nodes set defined\n");
334 fprintf(stderr, "Nodes Set:\n-----\n");
335 for(i = 0; i < nodes->nodeNr; ++i) {
336 if(nodes->nodeTab[i]->type == XML_NAMESPACE_DECL) {
339 ns = (xmlNsPtr)nodes->nodeTab[i];
340 cur = (xmlNodePtr)ns->next;
341 fprintf(stderr, "namespace \"%s\"=\"%s\" for node %s:%s\n",
342 ns->prefix, ns->href,
343 (cur->ns) ? cur->ns->prefix : BAD_CAST "", cur->name);
344 } else if(nodes->nodeTab[i]->type == XML_ELEMENT_NODE) {
345 cur = nodes->nodeTab[i];
346 fprintf(stderr, "element node \"%s:%s\"\n",
347 (cur->ns) ? cur->ns->prefix : BAD_CAST "", cur->name);
349 cur = nodes->nodeTab[i];
350 fprintf(stderr, "node \"%s\": type %d\n", cur->name, cur->type);
358 int main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
359 printf("%s : XPath/Canonicalization and output support not compiled in\n", argv[0]);
362 #endif /* LIBXML_C14N_ENABLED */