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/**
* XML Security Library (http://www.aleksey.com/xmlsec).
*
* Error codes and error reporting functions.
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
*
* Copyright (C) 2002-2016 Aleksey Sanin <aleksey@aleksey.com>. All Rights Reserved.
*/
#include "globals.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include <libxml/tree.h>
#include <xmlsec/xmlsec.h>
#include <xmlsec/xmltree.h>
#include <xmlsec/private.h>
#include <xmlsec/errors.h>
#define XMLSEC_ERRORS_BUFFER_SIZE 1024
typedef struct _xmlSecErrorDescription xmlSecErrorDescription, *xmlSecErrorDescriptionPtr;
struct _xmlSecErrorDescription {
int errorCode;
const char* errorMsg;
};
static xmlSecErrorDescription xmlSecErrorsTable[XMLSEC_ERRORS_MAX_NUMBER + 1] = {
{ XMLSEC_ERRORS_R_XMLSEC_FAILED, "xmlsec library function failed" },
{ XMLSEC_ERRORS_R_MALLOC_FAILED, "malloc function failed" },
{ XMLSEC_ERRORS_R_STRDUP_FAILED, "strdup function failed" },
{ XMLSEC_ERRORS_R_CRYPTO_FAILED, "crypto library function failed" },
{ XMLSEC_ERRORS_R_XML_FAILED, "libxml2 library function failed" },
{ XMLSEC_ERRORS_R_XSLT_FAILED, "libxslt library function failed" },
{ XMLSEC_ERRORS_R_IO_FAILED, "io function failed" },
{ XMLSEC_ERRORS_R_DISABLED, "feature is disabled" },
{ XMLSEC_ERRORS_R_NOT_IMPLEMENTED, "feature is not implemented" },
{ XMLSEC_ERRORS_R_INVALID_SIZE, "invalid size" },
{ XMLSEC_ERRORS_R_INVALID_DATA, "invalid data" },
{ XMLSEC_ERRORS_R_INVALID_RESULT, "invalid result" },
{ XMLSEC_ERRORS_R_INVALID_TYPE, "invalid type" },
{ XMLSEC_ERRORS_R_INVALID_OPERATION, "invalid operation" },
{ XMLSEC_ERRORS_R_INVALID_STATUS, "invalid status" },
{ XMLSEC_ERRORS_R_INVALID_FORMAT, "invalid format" },
{ XMLSEC_ERRORS_R_DATA_NOT_MATCH, "data do not match" },
{ XMLSEC_ERRORS_R_INVALID_NODE, "invalid node" },
{ XMLSEC_ERRORS_R_INVALID_NODE_CONTENT, "invalid node content" },
{ XMLSEC_ERRORS_R_INVALID_NODE_ATTRIBUTE, "invalid node attribute" },
{ XMLSEC_ERRORS_R_MISSING_NODE_ATTRIBUTE, "missing node attribute" },
{ XMLSEC_ERRORS_R_NODE_ALREADY_PRESENT, "node already present" },
{ XMLSEC_ERRORS_R_UNEXPECTED_NODE, "unexpected node" },
{ XMLSEC_ERRORS_R_NODE_NOT_FOUND, "node node found" },
{ XMLSEC_ERRORS_R_INVALID_TRANSFORM, "invalid transform" },
{ XMLSEC_ERRORS_R_INVALID_TRANSFORM_KEY, "invalid transform key" },
{ XMLSEC_ERRORS_R_INVALID_URI_TYPE, "invalid URI type" },
{ XMLSEC_ERRORS_R_TRANSFORM_SAME_DOCUMENT_REQUIRED, "same document is required for transform" },
{ XMLSEC_ERRORS_R_TRANSFORM_DISABLED, "transform is disabled" },
{ XMLSEC_ERRORS_R_INVALID_KEY_DATA, "invalid key data" },
{ XMLSEC_ERRORS_R_KEY_DATA_NOT_FOUND, "key data is not found" },
{ XMLSEC_ERRORS_R_KEY_DATA_ALREADY_EXIST, "key data already exist" },
{ XMLSEC_ERRORS_R_INVALID_KEY_DATA_SIZE, "invalid key data size" },
{ XMLSEC_ERRORS_R_KEY_NOT_FOUND, "key is not found" },
{ XMLSEC_ERRORS_R_KEYDATA_DISABLED, "key data is disabled" },
{ XMLSEC_ERRORS_R_MAX_RETRIEVALS_LEVEL, "maximum key retrieval level" },
{ XMLSEC_ERRORS_R_MAX_RETRIEVAL_TYPE_MISMATCH,"key retrieval type mismatch" },
{ XMLSEC_ERRORS_R_MAX_ENCKEY_LEVEL, "maximum encrypted key level" },
{ XMLSEC_ERRORS_R_CERT_VERIFY_FAILED, "certificate verification failed" },
{ XMLSEC_ERRORS_R_CERT_NOT_FOUND, "certificate is not found" },
{ XMLSEC_ERRORS_R_CERT_REVOKED, "certificate is revoked" },
{ XMLSEC_ERRORS_R_CERT_ISSUER_FAILED, "certificate issuer check failed" },
{ XMLSEC_ERRORS_R_CERT_NOT_YET_VALID, "certificate is not yet valid" },
{ XMLSEC_ERRORS_R_CERT_HAS_EXPIRED, "certificate has expirred" },
{ XMLSEC_ERRORS_R_DSIG_NO_REFERENCES, "Reference nodes are not found" },
{ XMLSEC_ERRORS_R_DSIG_INVALID_REFERENCE, "Reference verification failed" },
{ XMLSEC_ERRORS_R_ASSERTION, "assertion" },
{ 0, NULL}
};
static xmlSecErrorsCallback xmlSecErrorsClbk = xmlSecErrorsDefaultCallback;
static int xmlSecPrintErrorMessages = 1; /* whether the error messages will be printed immidiatelly */
/**
* xmlSecErrorsInit:
*
* Initializes the errors reporting. It is called from #xmlSecInit function.
* and applications must not call this function directly.
*/
void
xmlSecErrorsInit(void) {
}
/**
* xmlSecErrorsShutdown:
*
* Cleanups the errors reporting. It is called from #xmlSecShutdown function.
* and applications must not call this function directly.
*/
void
xmlSecErrorsShutdown(void) {
}
/**
* xmlSecErrorsSetCallback:
* @callback: the new errors callback function.
*
* Sets the errors callback function to @callback that will be called
* every time an error occurs.
*/
void
xmlSecErrorsSetCallback(xmlSecErrorsCallback callback) {
xmlSecErrorsClbk = callback;
}
/**
* xmlSecErrorsDefaultCallback:
* @file: the error location file name (__FILE__ macro).
* @line: the error location line number (__LINE__ macro).
* @func: the error location function name (__FUNCTION__ macro).
* @errorObject: the error specific error object
* @errorSubject: the error specific error subject.
* @reason: the error code.
* @msg: the additional error message.
*
* The default error reporting callback that utilizes LibXML
* error reporting #xmlGenericError function.
*/
void
xmlSecErrorsDefaultCallback(const char* file, int line, const char* func,
const char* errorObject, const char* errorSubject,
int reason, const char* msg) {
if(xmlSecPrintErrorMessages) {
const char* error_msg = NULL;
xmlSecSize i;
for(i = 0; (i < XMLSEC_ERRORS_MAX_NUMBER) && (xmlSecErrorsGetMsg(i) != NULL); ++i) {
if(xmlSecErrorsGetCode(i) == reason) {
error_msg = xmlSecErrorsGetMsg(i);
break;
}
}
xmlGenericError(xmlGenericErrorContext,
"func=%s:file=%s:line=%d:obj=%s:subj=%s:error=%d:%s:%s\n",
(func != NULL) ? func : "unknown",
(file != NULL) ? file : "unknown",
line,
(errorObject != NULL) ? errorObject : "unknown",
(errorSubject != NULL) ? errorSubject : "unknown",
reason,
(error_msg != NULL) ? error_msg : "",
(msg != NULL) ? msg : "");
}
}
/**
* xmlSecErrorsDefaultCallbackEnableOutput:
* @enabled: the flag.
*
* Enables or disables calling LibXML2 callback from the default
* errors callback.
*/
void
xmlSecErrorsDefaultCallbackEnableOutput(int enabled) {
xmlSecPrintErrorMessages = enabled;
}
/**
* xmlSecErrorsGetCode:
* @pos: the error position.
*
* Gets the known error code at position @pos.
*
* Returns: the known error code or 0 if @pos is greater than
* total number of known error codes.
*/
int
xmlSecErrorsGetCode(xmlSecSize pos) {
/* could not use asserts here! */
if(pos < sizeof(xmlSecErrorsTable) / sizeof(xmlSecErrorsTable[0])) {
return(xmlSecErrorsTable[pos].errorCode);
}
return(0);
}
/**
* xmlSecErrorsGetMsg:
* @pos: the error position.
*
* Gets the known error message at position @pos.
*
* Returns: the known error message or NULL if @pos is greater than
* total number of known error codes.
*/
const char*
xmlSecErrorsGetMsg(xmlSecSize pos) {
/* could not use asserts here! */
if(pos < sizeof(xmlSecErrorsTable) / sizeof(xmlSecErrorsTable[0])) {
return(xmlSecErrorsTable[pos].errorMsg);
}
return(NULL);
}
/**
* xmlSecError:
* @file: the error location filename (__FILE__).
* @line: the error location line number (__LINE__).
* @func: the error location function (__FUNCTIION__).
* @errorObject: the error specific error object
* @errorSubject: the error specific error subject.
* @reason: the error code.
* @msg: the error message in printf format.
* @...: the parameters for the @msg.
*
* Reports an error to the default (#xmlSecErrorsDefaultCallback) or
* application specific callback installed using #xmlSecErrorsSetCallback
* function.
*/
void
xmlSecError(const char* file, int line, const char* func,
const char* errorObject, const char* errorSubject,
int reason, const char* msg, ...) {
if(xmlSecErrorsClbk != NULL) {
xmlChar error_msg[XMLSEC_ERRORS_BUFFER_SIZE];
if(msg != NULL) {
va_list va;
va_start(va, msg);
xmlSecStrVPrintf(error_msg, sizeof(error_msg), BAD_CAST msg, va);
error_msg[sizeof(error_msg) - 1] = '\0';
va_end(va);
} else {
error_msg[0] = '\0';
}
xmlSecErrorsClbk(file, line, func, errorObject, errorSubject, reason, (char*)error_msg);
}
}
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