DeineAgenturUG/go-xmlsec
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progress: enable xmldsig and do other cleanups

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This commit is contained in:
Ross Kinder
2015-12-23 11:31:54 -05:00
parent 45f8aa9eeb
commit b390a3e30a
10 changed files with 655 additions and 381 deletions
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113
encrypt.go
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@@ -1,123 +1,30 @@
package xmlsec
// Note: on mac you need: brew install libxmlsec1 libxml2
// #cgo pkg-config: xmlsec1
// #include <xmlsec/xmlsec.h>
// #include <xmlsec/xmltree.h>
// #include <xmlsec/xmlenc.h>
// #include <xmlsec/errors.h>
// #include <xmlsec/templates.h>
// #include <xmlsec/crypto.h>
//
// static inline xmlSecKeyDataId MY_xmlSecKeyDataAesId(void) {
// return xmlSecKeyDataAesId;
// }
// // Note: the xmlSecKeyData*Id itentifiers are macros, so we need to wrap them
// // here to make them callable from go.
// static inline xmlSecKeyDataId MY_xmlSecKeyDataAesId(void) { return xmlSecKeyDataAesId; }
// static inline xmlSecKeyDataId MY_xmlSecKeyDataDesId(void) { return xmlSecKeyDataDesId; }
// static inline xmlSecTransformId MY_xmlSecTransformAes128CbcId(void) { return xmlSecTransformAes128CbcId; }
// static inline xmlSecTransformId MY_xmlSecTransformAes192CbcId(void) { return xmlSecTransformAes192CbcId; }
// static inline xmlSecTransformId MY_xmlSecTransformAes256CbcId(void) { return xmlSecTransformAes256CbcId; }
// static inline xmlSecTransformId MY_xmlSecTransformDes3CbcId(void) { return xmlSecTransformDes3CbcId; }
// static inline xmlSecTransformId MY_xmlSecTransformRsaOaepId(void) { return xmlSecTransformRsaOaepId; }
// static inline xmlSecTransformId MY_xmlSecTransformRsaPkcs1Id(void) { return xmlSecTransformRsaPkcs1Id; }
//
// static inline xmlSecTransformId MY_xmlSecTransformAes128CbcId(void) {
// return xmlSecTransformAes128CbcId;
// }
//
// static inline xmlSecTransformId MY_xmlSecTransformRsaOaepId(void) {
// return xmlSecTransformRsaOaepId;
// }
//
// static inline xmlSecKeyDataId MY_xmlSecKeyDataDesId(void) {
// return xmlSecKeyDataDesId;
// }
// static inline xmlSecTransformId MY_xmlSecTransformAes192CbcId(void) {
// return xmlSecTransformAes192CbcId;
// }
// static inline xmlSecTransformId MY_xmlSecTransformAes256CbcId(void) {
// return xmlSecTransformAes256CbcId;
// }
// static inline xmlSecTransformId MY_xmlSecTransformDes3CbcId(void) {
// return xmlSecTransformDes3CbcId;
// }
// static inline xmlSecTransformId MY_xmlSecTransformRsaPkcs1Id(void) {
// return xmlSecTransformRsaPkcs1Id;
// }
//
import "C"
// #cgo pkg-config: libxml-2.0
// #include <libxml/parser.h>
// #include <libxml/parserInternals.h>
// #include <libxml/xmlmemory.h>
// // Macro wrapper function
// static inline void MY_xmlFree(void *p) {
// xmlFree(p);
// }
import "C"
import (
"errors"
"fmt"
"unsafe"
)
// void onError_cgo(char *file, int line, char *funcName, char *errorObject, char *errorSubject, int reason, char *msg);
import "C"
func init() {
C.xmlInitParser()
if rv := C.xmlSecInit(); rv < 0 {
panic("xmlsec failed to initialize")
}
if rv := C.xmlSecCryptoAppInit(nil); rv < 0 {
panic("xmlsec crypto initialization failed.")
}
if rv := C.xmlSecCryptoInit(); rv < 0 {
panic("xmlsec crypto initialization failed.")
}
C.xmlSecErrorsSetCallback((C.xmlSecErrorsCallback)(unsafe.Pointer(C.onError_cgo)))
}
func newDoc(buf []byte) (*C.xmlDoc, error) {
ctx := C.xmlCreateMemoryParserCtxt((*C.char)(unsafe.Pointer(&buf[0])),
C.int(len(buf)))
if ctx == nil {
return nil, errors.New("error creating parser")
}
defer C.xmlFreeParserCtxt(ctx)
//C.xmlCtxtUseOptions(ctx, C.int(p.Options))
C.xmlParseDocument(ctx)
if ctx.wellFormed == C.int(0) {
return nil, errors.New("malformed XML")
}
doc := ctx.myDoc
if doc == nil {
return nil, errors.New("parse failed")
}
return doc, nil
}
func closeDoc(doc *C.xmlDoc) {
C.xmlFreeDoc(doc)
}
func dumpDoc(doc *C.xmlDoc) []byte {
var buffer *C.xmlChar
var bufferSize C.int
C.xmlDocDumpMemory(doc, &buffer, &bufferSize)
rv := C.GoStringN((*C.char)(unsafe.Pointer(buffer)), bufferSize)
C.MY_xmlFree(unsafe.Pointer(buffer))
// TODO(ross): this is totally nasty un-idiomatic, but I'm
// tired of googling how to copy a []byte from a char*
return []byte(rv)
}
func constXmlChar(s string) *C.xmlChar {
return (*C.xmlChar)(unsafe.Pointer(C.CString(s)))
}
const (
DefaultAlgorithm = iota
Aes128Cbc