libsecurity_manifest/lib/Download.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #ifndef __DOWNLOAD_H__
  25 #define __DOWNLOAD_H__
  26
  27
  28 #include <Security/SecCmsContentInfo.h>
  29 #include <Security/SecCmsDecoder.h>
  30 #include <Security/SecCmsEncoder.h>
  31 #include <Security/SecCmsMessage.h>
  32 #include <Security/SecCmsSignedData.h>
  33 #include <Security/SecCmsSignerInfo.h>
  34 #include <Security/SecTrustPriv.h>
  35 #include <Security/SecCertificatePriv.h>
  36 #include <CommonCrypto/CommonDigest.h>
  37
  38 #include "SecureDownload.h"
  39
  40 typedef u_int8_t Sha256Digest[CC_SHA256_DIGEST_LENGTH];
  41
  42 struct OpaqueSecureDownload
  43 {
  44 };
  45
  46
  47 class Download : public OpaqueSecureDownload
  48 {
  49 protected:
  50         CFDictionaryRef mDict;
  51         CFArrayRef mURLs;
  52         CFStringRef mName;
  53         CFDateRef mDate;
  54         CFDataRef mHashes;
  55         CFIndex mNumHashes, mCurrentHash;
  56         Sha256Digest mCurrentDigest, *mDigests; // mDigests points to the data member of mHashes
  57         CFIndex mBytesInCurrentDigest;
  58         CC_SHA256_CTX mSHA256Context;
  59
  60         SInt64 mDownloadSize;
  61         ssize_t mSectorSize;
  62
  63         SecCmsMessageRef GetCmsMessageFromData (CFDataRef data);
  64         void ParseTicket (CFDataRef ticket);
  65         SecPolicyRef GetPolicy ();
  66         void FinalizeDigestAndCompare ();
  67         void GoOrNoGo (SecTrustResultType result);
  68
  69 public:
  70
  71         Download ();
  72         virtual ~Download ();
  73         void Initialize (CFDataRef data,
  74                                          SecureDownloadTrustSetupCallback setup,
  75                                          void* setupContext,
  76                                          SecureDownloadTrustEvaluateCallback evaluate,
  77                                          void* evaluateContext);
  78         CFArrayRef CopyURLs ();
  79         CFStringRef CopyName ();
  80         CFDateRef CopyDate ();
  81         SInt64 GetDownloadSize () {return mDownloadSize;}
  82         void UpdateWithData (CFDataRef data);
  83         void Finalize ();
  84 };
  85
  86
  87
  88 #endif