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-rw-r--r--examples/sign2.c104
1 files changed, 61 insertions, 43 deletions
diff --git a/examples/sign2.c b/examples/sign2.c
index 3bb858ce..146bbbaa 100644
--- a/examples/sign2.c
+++ b/examples/sign2.c
@@ -6,13 +6,13 @@
* the whole document except the <dsig:Signature/> node itself.
*
* Usage:
- * sign2 <xml-doc> <pem-key>
+ * sign2 <xml-doc> <pem-key>
*
* Example:
- * ./sign2 sign2-doc.xml rsakey.pem > sign2-res.xml
+ * ./sign2 sign2-doc.xml rsakey.pem > sign2-res.xml
*
* The result signature could be validated using verify1 example:
- * ./verify1 sign2-res.xml rsapub.pem
+ * ./verify1 sign2-res.xml rsapub.pem
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
@@ -29,6 +29,7 @@
#ifndef XMLSEC_NO_XSLT
#include <libxslt/xslt.h>
+#include <libxslt/security.h>
#endif /* XMLSEC_NO_XSLT */
#include <xmlsec/xmlsec.h>
@@ -41,12 +42,16 @@ int sign_file(const char* xml_file, const char* key_file);
int
main(int argc, char **argv) {
+#ifndef XMLSEC_NO_XSLT
+ xsltSecurityPrefsPtr xsltSecPrefs = NULL;
+#endif /* XMLSEC_NO_XSLT */
+
assert(argv);
if(argc != 3) {
- fprintf(stderr, "Error: wrong number of arguments.\n");
- fprintf(stderr, "Usage: %s <xml-file> <key-file>\n", argv[0]);
- return(1);
+ fprintf(stderr, "Error: wrong number of arguments.\n");
+ fprintf(stderr, "Usage: %s <xml-file> <key-file>\n", argv[0]);
+ return(1);
}
/* Init libxml and libxslt libraries */
@@ -57,17 +62,29 @@ main(int argc, char **argv) {
#ifndef XMLSEC_NO_XSLT
xmlIndentTreeOutput = 1;
#endif /* XMLSEC_NO_XSLT */
-
+
+ /* Init libxslt */
+#ifndef XMLSEC_NO_XSLT
+ /* disable everything */
+ xsltSecPrefs = xsltNewSecurityPrefs();
+ xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_READ_FILE, xsltSecurityForbid);
+ xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_WRITE_FILE, xsltSecurityForbid);
+ xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_CREATE_DIRECTORY, xsltSecurityForbid);
+ xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_READ_NETWORK, xsltSecurityForbid);
+ xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_WRITE_NETWORK, xsltSecurityForbid);
+ xsltSetDefaultSecurityPrefs(xsltSecPrefs);
+#endif /* XMLSEC_NO_XSLT */
+
/* Init xmlsec library */
if(xmlSecInit() < 0) {
- fprintf(stderr, "Error: xmlsec initialization failed.\n");
- return(-1);
+ fprintf(stderr, "Error: xmlsec initialization failed.\n");
+ return(-1);
}
/* Check loaded library version */
if(xmlSecCheckVersion() != 1) {
- fprintf(stderr, "Error: loaded xmlsec library version is not compatible.\n");
- return(-1);
+ fprintf(stderr, "Error: loaded xmlsec library version is not compatible.\n");
+ return(-1);
}
/* Load default crypto engine if we are supporting dynamic
@@ -77,27 +94,27 @@ main(int argc, char **argv) {
*/
#ifdef XMLSEC_CRYPTO_DYNAMIC_LOADING
if(xmlSecCryptoDLLoadLibrary(BAD_CAST XMLSEC_CRYPTO) < 0) {
- fprintf(stderr, "Error: unable to load default xmlsec-crypto library. Make sure\n"
- "that you have it installed and check shared libraries path\n"
- "(LD_LIBRARY_PATH) envornment variable.\n");
- return(-1);
+ fprintf(stderr, "Error: unable to load default xmlsec-crypto library. Make sure\n"
+ "that you have it installed and check shared libraries path\n"
+ "(LD_LIBRARY_PATH) envornment variable.\n");
+ return(-1);
}
#endif /* XMLSEC_CRYPTO_DYNAMIC_LOADING */
/* Init crypto library */
if(xmlSecCryptoAppInit(NULL) < 0) {
- fprintf(stderr, "Error: crypto initialization failed.\n");
- return(-1);
+ fprintf(stderr, "Error: crypto initialization failed.\n");
+ return(-1);
}
/* Init xmlsec-crypto library */
if(xmlSecCryptoInit() < 0) {
- fprintf(stderr, "Error: xmlsec-crypto initialization failed.\n");
- return(-1);
+ fprintf(stderr, "Error: xmlsec-crypto initialization failed.\n");
+ return(-1);
}
if(sign_file(argv[1], argv[2]) < 0) {
- return(-1);
+ return(-1);
}
/* Shutdown xmlsec-crypto library */
@@ -111,6 +128,7 @@ main(int argc, char **argv) {
/* Shutdown libxslt/libxml */
#ifndef XMLSEC_NO_XSLT
+ xsltFreeSecurityPrefs(xsltSecPrefs);
xsltCleanupGlobals();
#endif /* XMLSEC_NO_XSLT */
xmlCleanupParser();
@@ -120,8 +138,8 @@ main(int argc, char **argv) {
/**
* sign_file:
- * @xml_file: the XML file name.
- * @key_file: the PEM private key file name.
+ * @xml_file: the XML file name.
+ * @key_file: the PEM private key file name.
*
* Signs the #xml_file using private key from #key_file and dynamicaly
* created enveloped signature template.
@@ -143,16 +161,16 @@ sign_file(const char* xml_file, const char* key_file) {
/* load doc file */
doc = xmlParseFile(xml_file);
if ((doc == NULL) || (xmlDocGetRootElement(doc) == NULL)){
- fprintf(stderr, "Error: unable to parse file \"%s\"\n", xml_file);
- goto done;
+ fprintf(stderr, "Error: unable to parse file \"%s\"\n", xml_file);
+ goto done;
}
/* create signature template for RSA-SHA1 enveloped signature */
signNode = xmlSecTmplSignatureCreate(doc, xmlSecTransformExclC14NId,
- xmlSecTransformRsaSha1Id, NULL);
+ xmlSecTransformRsaSha1Id, NULL);
if(signNode == NULL) {
- fprintf(stderr, "Error: failed to create signature template\n");
- goto done;
+ fprintf(stderr, "Error: failed to create signature template\n");
+ goto done;
}
/* add <dsig:Signature/> node to the doc */
@@ -160,54 +178,54 @@ sign_file(const char* xml_file, const char* key_file) {
/* add reference */
refNode = xmlSecTmplSignatureAddReference(signNode, xmlSecTransformSha1Id,
- NULL, NULL, NULL);
+ NULL, NULL, NULL);
if(refNode == NULL) {
- fprintf(stderr, "Error: failed to add reference to signature template\n");
- goto done;
+ fprintf(stderr, "Error: failed to add reference to signature template\n");
+ goto done;
}
/* add enveloped transform */
if(xmlSecTmplReferenceAddTransform(refNode, xmlSecTransformEnvelopedId) == NULL) {
- fprintf(stderr, "Error: failed to add enveloped transform to reference\n");
- goto done;
+ fprintf(stderr, "Error: failed to add enveloped transform to reference\n");
+ goto done;
}
/* add <dsig:KeyInfo/> and <dsig:KeyName/> nodes to put key name in the signed document */
keyInfoNode = xmlSecTmplSignatureEnsureKeyInfo(signNode, NULL);
if(keyInfoNode == NULL) {
- fprintf(stderr, "Error: failed to add key info\n");
- goto done;
+ fprintf(stderr, "Error: failed to add key info\n");
+ goto done;
}
if(xmlSecTmplKeyInfoAddKeyName(keyInfoNode, NULL) == NULL) {
- fprintf(stderr, "Error: failed to add key name\n");
- goto done;
+ fprintf(stderr, "Error: failed to add key name\n");
+ goto done;
}
/* create signature context, we don't need keys manager in this example */
dsigCtx = xmlSecDSigCtxCreate(NULL);
if(dsigCtx == NULL) {
fprintf(stderr,"Error: failed to create signature context\n");
- goto done;
+ goto done;
}
/* load private key, assuming that there is not password */
dsigCtx->signKey = xmlSecCryptoAppKeyLoad(key_file, xmlSecKeyDataFormatPem, NULL, NULL, NULL);
if(dsigCtx->signKey == NULL) {
fprintf(stderr,"Error: failed to load private pem key from \"%s\"\n", key_file);
- goto done;
+ goto done;
}
/* set key name to the file name, this is just an example! */
if(xmlSecKeySetName(dsigCtx->signKey, key_file) < 0) {
- fprintf(stderr,"Error: failed to set key name for key from \"%s\"\n", key_file);
- goto done;
+ fprintf(stderr,"Error: failed to set key name for key from \"%s\"\n", key_file);
+ goto done;
}
/* sign the template */
if(xmlSecDSigCtxSign(dsigCtx, signNode) < 0) {
fprintf(stderr,"Error: signature failed\n");
- goto done;
+ goto done;
}
/* print signed document to stdout */
@@ -219,11 +237,11 @@ sign_file(const char* xml_file, const char* key_file) {
done:
/* cleanup */
if(dsigCtx != NULL) {
- xmlSecDSigCtxDestroy(dsigCtx);
+ xmlSecDSigCtxDestroy(dsigCtx);
}
if(doc != NULL) {
- xmlFreeDoc(doc);
+ xmlFreeDoc(doc);
}
return(res);
}