sfparams.c

voltage 公司提供的一个开发Ibe的工具包

/* Copyright 2003-2005, Voltage Security, all rights reserved.
 */
#include "vibe.h"
#include "environment.h"
#include "base.h"
#include "libctx.h"
#include "securemail.h"
#include "stringutil.h"

int VtSecureFileParamRecipientList (
   VtSecureFileObject secureFileObj,
   Pointer info,
   unsigned int flag
   )
{
  int status;
  VoltSecureMailObject *obj = (VoltSecureMailObject *)secureFileObj;
  VoltSecureMailWriteCtx *writeCtx;

  if (flag == VOLT_SECURE_FILE_SET_TYPE_FLAG)
  {
    /* The SecureMail object must be set to write.
     */
    if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
      return (VT_ERROR_INVALID_SECURE_FILE_OBJ);

    /* Set the enveloper with this list.
     */
    status = VtSetPkcs7Param (
      obj->p7EnvelopedData, VtPkcs7ParamRecipientList, info);
    if (status != 0)
      return (status);

    /* We need a reference to the recipient list.
     */
    writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);
    return (VtGetPkcs7Param (
      obj->p7EnvelopedData, VtPkcs7ParamRecipientList,
      (Pointer *)&(writeCtx->recipListRef)));
  }

  if (flag == VOLT_SECURE_FILE_GET_TYPE_FLAG)
  {
    /* If getting, the SecureMail object must be set to read.
     */
    if ((obj->state & VOLT_SECURE_MAIL_STATE_READ) == 0)
      return (VT_ERROR_INVALID_SECURE_FILE_OBJ);

    /* Get the list out of the enveloper.
     */
    return (VtGetPkcs7Param (
      obj->p7EnvelopedData, VtPkcs7ParamRecipientList, (Pointer *)info));
  }

  /* If we get this far, the flag was not appropriate.
   */
  return (VT_ERROR_INVALID_TYPE);
}

int VtSecureFileParamRecipientIndex (
   VtSecureFileObject secureFileObj,
   Pointer info,
   unsigned int flag
   )
{
  VoltSecureMailObject *obj = (VoltSecureMailObject *)secureFileObj;

  /* This Param cannot Get info.
   */
  if (flag == VOLT_SECURE_FILE_GET_TYPE_FLAG)
    return (VT_ERROR_INVALID_GET);

  if (flag != VOLT_SECURE_FILE_SET_TYPE_FLAG)
    return (VT_ERROR_INVALID_TYPE);

  /* The SecureMail object must be set to read.
   */
  if ((obj->state & VOLT_SECURE_MAIL_STATE_READ) == 0)
    return (VT_ERROR_INVALID_SECURE_FILE_OBJ);

  /* Set the enveloper with this list.
   */
  return (VtSetPkcs7Param (
    obj->p7EnvelopedData, VtPkcs7ParamRecipientIndex, info));
}

int VtSecureFileParamSignerList (
   VtSecureFileObject secureFileObj,
   Pointer info,
   unsigned int flag
   )
{
  int status;
  Pointer *getInfo;
  VoltSecureMailObject *obj = (VoltSecureMailObject *)secureFileObj;

  do
  {
    /* This param can GetParam only.
     */
    status = VT_ERROR_INVALID_SET;
    if (flag == VOLT_SECURE_FILE_SET_TYPE_FLAG)
      break;

    status = VT_ERROR_INVALID_TYPE;
    if (flag != VOLT_SECURE_FILE_GET_TYPE_FLAG)
      break;

    getInfo = (Pointer *)info;

    /* The object must be done reading a file.
     */
    status = VT_ERROR_GET_INFO_UNAVAILABLE;
    if (obj->state != VOLT_SECURE_FILE_STATE_READ_COMPLETE)
      break;

    /* Get the info out of the P7 object.
     */
    status = VtGetPkcs7Param (
      obj->p7SignedData, VtPkcs7ParamSignerList, getInfo);

  } while (0);

  return (status);
}

int VtSecureFileParamContentDescriptors (
   VtSecureFileObject secureFileObj,
   Pointer info,
   unsigned int flag
   )
{
  int status;
  unsigned int bufferSize, index;
  Pointer *getInfo;
  VoltSecureMailObject *obj = (VoltSecureMailObject *)secureFileObj;
  VoltSecureMailReadCtx *readCtx = (VoltSecureMailReadCtx *)(obj->localCtx);
  VoltLibCtx *libCtx = (VoltLibCtx *)(obj->voltObject.libraryCtx);
  VoltContentMaterial *currentElement;

  do
  {
    /* This param can GetParam only.
     */
    status = VT_ERROR_INVALID_SET;
    if (flag == VOLT_SECURE_FILE_SET_TYPE_FLAG)
      break;

    status = VT_ERROR_INVALID_TYPE;
    if (flag != VOLT_SECURE_FILE_GET_TYPE_FLAG)
      break;

    getInfo = (Pointer *)info;

    status = VT_ERROR_UNIMPLEMENTED;

    /* Make sure this object is set to read SecureFile and that the
     * content descriptors have been read.
     */
    status = VT_ERROR_INVALID_SECURE_FILE_OBJ;
    if (readCtx->contentMaterialState != VOLT_CONTENT_MATERIAL_STATE_COMPLETE)
      break;

    /* If the list is not yet computed, compute it now.
     */
    if (readCtx->contentDescriptors.count != readCtx->contentMaterialCount)
    {
      /* The buffer size is the size of an array, we'll just fill it
       * with the pointers to the data already copied.
       */
      status = VT_ERROR_MEMORY;
      bufferSize = readCtx->contentMaterialCount * sizeof (unsigned char *);
      readCtx->contentDescriptors.utf8Strings = (unsigned char **)Z2Realloc (
        readCtx->contentDescriptors.utf8Strings, bufferSize);
      if (readCtx->contentDescriptors.utf8Strings == (unsigned char **)0)
        break;
      Z2Memset (readCtx->contentDescriptors.utf8Strings, 0, bufferSize);
      readCtx->contentDescriptors.count = readCtx->contentMaterialCount;

      /* Load up all the addresses.
       */
      currentElement = readCtx->contentMaterial;
      for (index = 0; index < readCtx->contentMaterialCount; ++index)
      {
        readCtx->contentDescriptors.utf8Strings[index] =
          currentElement->material.data;

        currentElement = (VoltContentMaterial *)(currentElement->nextElement);
      }
    }

    *getInfo = (Pointer)&(readCtx->contentDescriptors);

    status = 0;
  } while (0);

  return (status);
}

int VtSecureFileParamMessageTime (
   VtSecureFileObject secureFileObj,
   Pointer info,
   unsigned int flag
   )
{
  int status;
  Pointer *getInfo;
  VoltSecureMailObject *obj = (VoltSecureMailObject *)secureFileObj;

  do
  {
    /* This param can GetParam only.
     */
    status = VT_ERROR_INVALID_SET;
    if (flag == VOLT_SECURE_FILE_SET_TYPE_FLAG)
      break;

    status = VT_ERROR_INVALID_TYPE;
    if (flag != VOLT_SECURE_FILE_GET_TYPE_FLAG)
      break;

    getInfo = (Pointer *)info;

    /* The object must be done reading a message.
     */
    status = VT_ERROR_GET_INFO_UNAVAILABLE;
    if (obj->state != VOLT_SECURE_FILE_STATE_READ_COMPLETE)
      break;

    /* Get the info out of the P7 object.
     */
    status = VtGetPkcs7Param (
      obj->p7SignedData, VtPkcs7ParamSigningTime, getInfo);

  } while (0);

  return (status);
}

int VtSecureFileParamContentType (
   VtSecureFileObject secureFileObj,
   Pointer info,
   unsigned int flag
   )
{
  int status;
  unsigned int contentLen, labelLen, index;
  Pointer *getInfo;
  VoltSecureMailObject *obj = (VoltSecureMailObject *)secureFileObj;
  VoltLibCtx *libCtx = (VoltLibCtx *)(obj->voltObject.libraryCtx);
  VoltSecureMailWriteCtx *writeCtx = (VoltSecureMailWriteCtx *)0;
  VoltSecureMailReadCtx *readCtx = (VoltSecureMailReadCtx *)0;
  VtUtf8StringList *descriptors;
  char *found;
  char *labelName = "content-type: ";

  if ((obj->state & VOLT_SECURE_MAIL_STATE_WRITE) != 0)
    writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);
  else
    readCtx = (VoltSecureMailReadCtx *)(obj->localCtx);

  do
  {
    if (flag == VOLT_SECURE_FILE_SET_TYPE_FLAG)
    {
      /* The state must be VOLT_SECURE_MAIL_STATE_WRITE_SET.
       */
      status = VT_ERROR_INVALID_CALL_ORDER;
      if (obj->state != VOLT_SECURE_MAIL_STATE_WRITE_SET)
        break;

      /* Make sure the obj does not yet have the contentType set.
       */
      status = VT_ERROR_INVALID_SECURE_FILE_OBJ;
      if (obj->contentInfo.data != (unsigned char *)0)
        break;

      /* The info should be an unsigned char *.
       */
      status = VT_ERROR_INVALID_ASSOCIATED_INFO;
      if (info == (Pointer)0)
        break;

      contentLen = Z2Strlen (info);

      /* Build a buffer with the contentType. Add a NULL-terminating
       * character.
       */
      status = VT_ERROR_MEMORY;
      obj->contentInfo.data = (unsigned char *)Z3Malloc (contentLen + 1);
      if (obj->contentInfo.data == (unsigned char *)0)
        break;
      Z2Memcpy (obj->contentInfo.data, info, contentLen);
      obj->contentInfo.data[contentLen] = 0;
      obj->contentInfo.len = contentLen;

      status = 0;
      break;
    }

    status = VT_ERROR_INVALID_TYPE;
    if (flag != VOLT_SECURE_FILE_GET_TYPE_FLAG)
      break;

    getInfo = (Pointer *)info;

    /* If this is an object to write, the content-type is in the
     * contentInfo.
     */
    status = VT_ERROR_GET_INFO_UNAVAILABLE;
    if (writeCtx != (VoltSecureMailWriteCtx *)0)
    {
      if (obj->contentInfo.data == (unsigned char *)0)
        break;
      *getInfo = (Pointer)(obj->contentInfo.data);
      status = 0;
      break;
    }

    status = VtGetSecureFileParam (
      secureFileObj, VtSecureFileParamContentDescriptors,
      (Pointer *)&descriptors);
    if (status != 0)
      break;

    /* Search through the list, find the string that begins
     * "content-type: ".
     */
    labelLen = 14;
    found = (char *)0;
    for (index = 0; index < descriptors->count; ++index)
    {
      found = Strstr (
        descriptors->utf8Strings[index], labelName, (VtLibCtx)libCtx);
      if (found != (char *)0)
        break;
    }

    /* If we went through the list and did not find content-type, the
     * info is unavailable.
     */
    status = VT_ERROR_GET_INFO_UNAVAILABLE;
    if (found == (char *)0)
      break;

    /* Find the semicolon.
     */
    labelName = found + labelLen;
    labelLen = Z2Strlen (labelName);
    found = Strchr (labelName, ';', (VtLibCtx)libCtx);
    if (found != (char *)0)
      labelLen = (unsigned int)found - (unsigned int)labelName;

    /* Store the contentType in the contentInfo.
     */
    status = VT_ERROR_MEMORY;
    obj->contentInfo.data = (unsigned char *)Z2Realloc (
      obj->contentInfo.data, labelLen + 1);
    if (obj->contentInfo.data == (unsigned char *)0)
      break;

    Z2Memcpy (obj->contentInfo.data, labelName, labelLen);
    obj->contentInfo.data[labelLen] = 0;
    *getInfo = (Pointer)(obj->contentInfo.data);
    status = 0;

  } while (0);

  return (status);
}

int VtSecureFileParamMessageType (
   VtSecureFileObject secureFileObj,
   Pointer info,
   unsigned int flag
   )
{
  int status;
  unsigned int value;
  VoltSecureMailObject *obj = (VoltSecureMailObject *)secureFileObj;
  VoltSecureMailWriteCtx *writeCtx;

  do
  {
    /* This Param cannot Get info.
     */
    status = VT_ERROR_INVALID_GET;
    if (flag == VOLT_SECURE_FILE_GET_TYPE_FLAG)
      break;

    status = VT_ERROR_INVALID_TYPE;
    if (flag != VOLT_SECURE_FILE_SET_TYPE_FLAG)
      break;

    /* The SecureFile object must be set to write.
     */
    status = VT_ERROR_INVALID_SECURE_FILE_OBJ;
    if ((obj->state & VOLT_SECURE_MAIL_STATE_WRITE) == 0)
      break;

    /* The associatedInfo must be a pointer to an unsigned int.
     */
    status = VT_ERROR_INVALID_ASSOCIATED_INFO;
    if (info == (Pointer)0)
      break;

    value = *((unsigned int *)info);
    writeCtx = (VoltSecureMailWriteCtx *)(obj->localCtx);

    if (value == VT_SECURE_FILE_TYPE_FILE)
    {
      obj->formatType = VOLT_MESSAGE_FORMAT_SECURE_FILE;
      writeCtx->itemArray[VOLT_WRITE_SM_ITEM_BEGIN_MSG].len =
        VOLT_SECURE_FILE_BEGIN_MSG_LEN;
      status = 0;
      break;
    }

    if (value != VT_SECURE_FILE_TYPE_ATTACHMENT)
      break;

    obj->formatType = VOLT_MESSAGE_FORMAT_SECURE_MAIL_ATTACH;
    writeCtx->itemArray[VOLT_WRITE_SM_ITEM_BEGIN_MSG].len = 0;
    status = 0;

  } while (0);

  return (status);
}