?? sm2read.c
字號(hào):
VOLT_DECLARE_ERROR_TYPE(errorType)
VOLT_SET_ERROR_TYPE(errorType, 0)
VT_ASSERT(secureMailObj != (VtSecureMailObject)0);
VT_ASSERT(inputRead != (unsigned int*)0);
VT_ASSERT(pendingInputLength != (unsigned int*)0);
*inputRead = inputLength;
*pendingInputLength = 0;
if (inputLength == 0)
return 0;
readCtx = (VoltSecureMail2ReadCtx*)secureMailObj->localCtx;
VT_ASSERT(readCtx != (VoltSecureMail2ReadCtx*)0);
libCtx = secureMailObj->voltObject.libraryCtx;
VT_ASSERT(libCtx != (VtLibCtx)0);
do
{
isHTML = (readCtx->wrapperType == VOLT_SECURE_MAIL_WRAPPER_TYPE_HTML);
maxTagLength = Z2Strlen(VoltZDM2MessageBlockStartTagPrefix) +
Z2Strlen(VoltZDM2MessageBlockStartTagSuffix) +
VOLT_ZDM2_MAX_VERSION_NUMBER_LENGTH;
if (isHTML)
maxTagLength += 7; // Add 7 for the "<!--" and "-->" HTML comments
p = input;
end = input + inputLength;
p = VoltSecureMail2SkipWhitespace(p, end);
if (p + maxTagLength > end)
{
*pendingInputLength = end - p;
break;
}
foundTag = 0;
for (i = VOLT_SECURE_MAIL_2_BEGIN_VERSION;
i <= VOLT_SECURE_MAIL_2_END_VERSION; i++)
{
Z2Free(tag);
VOLT_SET_FNCT_LINE(fnctLine)
status = VoltZDM2FormatMessageTag(libCtx,
VoltZDM2MessageBlockStartTagPrefix,
VoltZDM2MessageBlockStartTagSuffix, (unsigned char*)0,
i, isHTML, &tag);
if (status != 0)
break;
tagLength = Z2Strlen(tag);
if (VoltCaseInsensitiveCompareBuffers(p, tagLength,
tag, tagLength, libCtx) == 0)
{
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_HEADER_2;
*inputRead = p + tagLength - input;
secureMailObj->version = i;
foundTag = 1;
break;
}
}
if ((status != 0) || foundTag)
break;
VOLT_SET_FNCT_LINE(fnctLine)
VOLT_SET_ERROR_TYPE(errorType, VT_ERROR_TYPE_PRIMARY)
status = VT_ERROR_INVALID_SECURE_MAIL_MSG;
readCtx->wrapperType = VOLT_SECURE_MAIL_WRAPPER_TYPE_INVALID;
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_COMPLETE;
}
while (0);
Z2Free(tag);
VOLT_LOG_ERROR_COMPARE(status, libCtx, status, errorType,
fnctLine, "VoltSecureMail2FindMessageStart", (unsigned char*)0)
return status;
}
static int VoltSecureMail2FindSecureStart(
VtSecureMailObject secureMailObj,
const unsigned char *input,
unsigned int inputLength,
unsigned int* inputRead,
unsigned int* pendingInputLength
)
{
int status = 0;
VoltSecureMail2ReadCtx* readCtx = (VoltSecureMail2ReadCtx*)0;
VtLibCtx libCtx = (VtLibCtx)0;
int foundTag = 0;
unsigned char* tag = (unsigned char*)0;
unsigned int tagLength;
const unsigned char* p;
const unsigned char* end;
VOLT_DECLARE_FNCT_LINE(fnctLine)
VOLT_DECLARE_ERROR_TYPE(errorType)
VOLT_SET_ERROR_TYPE(errorType, 0)
VT_ASSERT(secureMailObj != (VtSecureMailObject)0);
VT_ASSERT(inputRead != (unsigned int*)0);
VT_ASSERT(pendingInputLength != (unsigned int*)0);
*inputRead = inputLength;
*pendingInputLength = 0;
if (inputLength == 0)
return 0;
readCtx = (VoltSecureMail2ReadCtx*)secureMailObj->localCtx;
VT_ASSERT(readCtx != (VoltSecureMail2ReadCtx*)0);
libCtx = secureMailObj->voltObject.libraryCtx;
VT_ASSERT(libCtx != (VtLibCtx)0);
do
{
VOLT_SET_FNCT_LINE(fnctLine)
status = VoltZDM2FormatMessageTag(libCtx,
VoltZDM2SecureBlockStartTagPrefix,
VoltZDM2SecureBlockStartTagSuffix, (unsigned char*)0,
secureMailObj->version, 0, &tag);
if (status != 0)
break;
tagLength = Z2Strlen(tag);
p = input;
end = input + inputLength;
while (p + tagLength <= end)
{
if (VoltCaseInsensitiveCompareBuffers(p, tagLength,
tag, tagLength, libCtx) == 0)
{
foundTag = 1;
break;
}
p++;
}
if (foundTag)
{
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_B64;
*inputRead = p + tagLength - input;
}
else
{
*pendingInputLength = tagLength - 1;
}
}
while (0);
Z2Free(tag);
VOLT_LOG_ERROR_COMPARE(status, libCtx, status, errorType,
fnctLine, "VoltSecureMail2FindSecureStart", (unsigned char*)0)
return status;
}
static int VoltSecureMail2ReadSecureEnd(
VtSecureMailObject secureMailObj,
const unsigned char *input,
unsigned int inputLength,
unsigned int* inputRead,
unsigned int* pendingInputLength
)
{
int status = 0;
VoltSecureMail2ReadCtx* readCtx = (VoltSecureMail2ReadCtx*)0;
VtLibCtx libCtx = (VtLibCtx)0;
unsigned char* tag = (unsigned char*)0;
unsigned int tagLength;
const unsigned char* p;
const unsigned char* end;
int isHTML;
VOLT_DECLARE_FNCT_LINE(fnctLine)
VOLT_DECLARE_ERROR_TYPE(errorType)
VOLT_SET_ERROR_TYPE(errorType, 0)
VT_ASSERT(secureMailObj != (VtSecureMailObject)0);
VT_ASSERT(inputRead != (unsigned int*)0);
VT_ASSERT(pendingInputLength != (unsigned int*)0);
*inputRead = inputLength;
*pendingInputLength = 0;
if (inputLength == 0)
return 0;
readCtx = (VoltSecureMail2ReadCtx*)secureMailObj->localCtx;
VT_ASSERT(readCtx != (VoltSecureMail2ReadCtx*)0);
libCtx = secureMailObj->voltObject.libraryCtx;
VT_ASSERT(libCtx != (VtLibCtx)0);
do
{
VOLT_SET_FNCT_LINE(fnctLine)
status = VoltZDM2FormatMessageTag(libCtx,
VoltZDM2SecureBlockEndTagPrefix,
VoltZDM2SecureBlockEndTagSuffix, (unsigned char*)0,
secureMailObj->version, 0, &tag);
if (status != 0)
break;
tagLength = Z2Strlen(tag);
p = input;
end = input + inputLength;
p = VoltSecureMail2SkipWhitespace(p, end);
if (p + tagLength > end)
{
*pendingInputLength = end - p;
break;
}
if (VoltCaseInsensitiveCompareBuffers(p, tagLength,
tag, tagLength, libCtx) == 0)
{
isHTML = (readCtx->wrapperType == VOLT_SECURE_MAIL_WRAPPER_TYPE_HTML);
secureMailObj->state = isHTML ? VOLT_SECURE_MAIL_STATE_READ_COMMENT_END :
VOLT_SECURE_MAIL_STATE_READ_FOOTER_2;
*inputRead = p + tagLength - input;
break;
}
VOLT_SET_FNCT_LINE(fnctLine)
VOLT_SET_ERROR_TYPE(errorType, VT_ERROR_TYPE_PRIMARY)
status = VT_ERROR_INVALID_SECURE_MAIL_MSG;
readCtx->wrapperType = VOLT_SECURE_MAIL_WRAPPER_TYPE_INVALID;
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_COMPLETE;
}
while (0);
Z2Free(tag);
VOLT_LOG_ERROR_COMPARE(status, libCtx, status, errorType,
fnctLine, "VoltSecureMail2ReadSecureEnd", (unsigned char*)0)
return status;
}
static int VoltSecureMail2ReadCommentEnd(
VtSecureMailObject secureMailObj,
const unsigned char *input,
unsigned int inputLength,
unsigned int* inputRead,
unsigned int* pendingInputLength
)
{
int status = 0;
VoltSecureMail2ReadCtx* readCtx = (VoltSecureMail2ReadCtx*)0;
VtLibCtx libCtx = (VtLibCtx)0;
const unsigned char* p;
const unsigned char* end;
const unsigned char* commentEnd = "-->";
int commentLength;
VOLT_DECLARE_FNCT_LINE(fnctLine)
VT_ASSERT(secureMailObj != (VtSecureMailObject)0);
VT_ASSERT(inputRead != (unsigned int*)0);
VT_ASSERT(pendingInputLength != (unsigned int*)0);
*inputRead = inputLength;
*pendingInputLength = 0;
if (inputLength == 0)
return 0;
readCtx = (VoltSecureMail2ReadCtx*)secureMailObj->localCtx;
VT_ASSERT(readCtx != (VoltSecureMail2ReadCtx*)0);
libCtx = secureMailObj->voltObject.libraryCtx;
VT_ASSERT(libCtx != (VtLibCtx)0);
do
{
commentLength = Z2Strlen(commentEnd);
p = input;
end = input + inputLength;
p = VoltSecureMail2SkipWhitespace(p, end);
if (p + commentLength > end)
{
*pendingInputLength = end - p;
break;
}
if (VoltCaseInsensitiveCompareBuffers(p, commentLength,
commentEnd, commentLength, libCtx) == 0)
{
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_FOOTER_2;
*inputRead = p + commentLength - input;
break;
}
VOLT_SET_FNCT_LINE(fnctLine)
status = VT_ERROR_INVALID_SECURE_MAIL_MSG;
readCtx->wrapperType = VOLT_SECURE_MAIL_WRAPPER_TYPE_INVALID;
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_COMPLETE;
}
while (0);
VOLT_LOG_ERROR_COMPARE(status, libCtx, status, VT_ERROR_TYPE_PRIMARY,
fnctLine, "VoltSecureMail2ReadCommentEnd", (unsigned char*)0)
return status;
}
static int VoltSecureMail2ReadMessageEnd(
VtSecureMailObject secureMailObj,
const unsigned char *input,
unsigned int inputLength,
unsigned int* inputRead,
unsigned int* pendingInputLength
)
{
int status = 0;
VoltSecureMail2ReadCtx* readCtx = (VoltSecureMail2ReadCtx*)0;
VtLibCtx libCtx = (VtLibCtx)0;
int isHTML;
unsigned char* tag = (unsigned char*)0;
unsigned int tagLength;
const unsigned char* p;
const unsigned char* end;
VOLT_DECLARE_FNCT_LINE(fnctLine)
VOLT_DECLARE_ERROR_TYPE(errorType)
VOLT_SET_ERROR_TYPE(errorType, 0)
VT_ASSERT(secureMailObj != (VtSecureMailObject)0);
VT_ASSERT(inputRead != (unsigned int*)0);
VT_ASSERT(pendingInputLength != (unsigned int*)0);
*inputRead = inputLength;
*pendingInputLength = 0;
if (inputLength == 0)
return 0;
readCtx = (VoltSecureMail2ReadCtx*)secureMailObj->localCtx;
VT_ASSERT(readCtx != (VoltSecureMail2ReadCtx*)0);
libCtx = secureMailObj->voltObject.libraryCtx;
VT_ASSERT(libCtx != (VtLibCtx)0);
do
{
isHTML = (readCtx->wrapperType == VOLT_SECURE_MAIL_WRAPPER_TYPE_HTML);
VOLT_SET_FNCT_LINE(fnctLine)
status = VoltZDM2FormatMessageTag(libCtx,
VoltZDM2MessageBlockEndTagPrefix,
VoltZDM2MessageBlockEndTagSuffix, (unsigned char*)0,
secureMailObj->version, isHTML, &tag);
if (status != 0)
break;
tagLength = Z2Strlen(tag);
p = input;
end = input + inputLength;
p = VoltSecureMail2SkipWhitespace(p, end);
if (p + tagLength > end)
{
*pendingInputLength = end - p;
break;
}
if (VoltCaseInsensitiveCompareBuffers(p, tagLength,
tag, tagLength, libCtx) == 0)
{
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_COMPLETE;
*inputRead = p + tagLength - input;
break;
}
VOLT_SET_FNCT_LINE(fnctLine)
VOLT_SET_ERROR_TYPE(errorType, VT_ERROR_TYPE_PRIMARY)
status = VT_ERROR_INVALID_SECURE_MAIL_MSG;
readCtx->wrapperType = VOLT_SECURE_MAIL_WRAPPER_TYPE_INVALID;
secureMailObj->state = VOLT_SECURE_MAIL_STATE_READ_COMPLETE;
}
while (0);
Z2Free(tag);
VOLT_LOG_ERROR_COMPARE(status, libCtx, status, errorType,
fnctLine, "VoltSecureMail2ReadMessageEnd", (unsigned char*)0)
return status;
}
static int VoltSecureMail2ProcessHeaders(
VtSecureMailObject secureMailObj,
const unsigned char* headers
)
{
int status = 0;
VoltSecureMail2ReadCtx* readCtx = (VoltSecureMail2ReadCtx*)0;
VtLibCtx libCtx = (VtLibCtx)0;
VtDataNodeObject attributesNode = (VtDataNodeObject)0;
VtDataNodeObject node;
const unsigned char* str;
const unsigned char* p;
const unsigned char* end;
unsigned char label[100];
unsigned int labelLength;
VOLT_DECLARE_FNCT_LINE(fnctLine)
VOLT_DECLARE_ERROR_TYPE(errorType)
VOLT_SET_ERROR_TYPE(errorType, 0)
VT_ASSERT(secureMailObj != (VtSecureMailObject)0);
readCtx = (VoltSecureMail2ReadCtx*)secureMailObj->localCtx;
VT_ASSERT(readCtx != (VoltSecureMail2ReadCtx*)0);
libCtx = secureMailObj->voltObject.libraryCtx;
VT_ASSERT(libCtx != (VtLibCtx)0);
do
{
p = headers;
end = headers + Z2Strlen(headers);
p = VoltSecureMail2SkipWhitespace(p, end);
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