OSX/utilities/src/NSURL+SOSPlistStore.m

   1 //
   2 //  NSURL+SOSPlistWriting.h
   3 //
   4
   5 #import <Security/Security.h>
   6 #import <Foundation/NSPropertyList.h>
   7 #import <Foundation/NSArray.h>
   8 #import <Foundation/NSPropertyList.h>
   9 #import <Foundation/NSData.h>
  10 #import <Foundation/NSURL.h>
  11 #import <Foundation/NSDictionary.h>
  12 #import <utilities/debugging.h>
  13 #import <utilities/SecFileLocations.h>
  14
  15 #if ! __has_feature(objc_arc)
  16 #error This file must be compiled with ARC. Either turn on ARC for the project or use -fobjc-arc flag
  17 #endif
  18
  19 // may want to have this hold incoming events in file as well
  20
  21 @implementation NSURL (SOSPlistWriting)
  22
  23 - (BOOL)writePlist: (id) plist
  24 {
  25     NSError *error = nil;
  26     if (![NSPropertyListSerialization propertyList: plist isValidForFormat: NSPropertyListXMLFormat_v1_0])
  27     {
  28         secerror("can't save PersistentState as XML");
  29         return false;
  30     }
  31
  32     NSData *data = [NSPropertyListSerialization dataWithPropertyList: plist
  33         format: NSPropertyListXMLFormat_v1_0 options: 0 error: &error];
  34     if (data == nil)
  35     {
  36         secerror("error serializing PersistentState to xml: %@", error);
  37         return false;
  38     }
  39
  40     BOOL writeStatus = [data writeToURL:self options: NSDataWritingAtomic error: &error];
  41     if (!writeStatus)
  42         secerror("error writing PersistentState to file: %@", error);
  43
  44     return writeStatus;
  45 }
  46
  47 - (id) readPlist
  48 {
  49     NSError *error = nil;
  50     NSData *data = [NSData dataWithContentsOfURL: self options: 0 error: &error];
  51     if (data == nil)
  52     {
  53         secdebug("keyregister", "error reading PersistentState from %@: %@", self, error);
  54         return nil;
  55     }
  56
  57     // Now the deserializing:
  58
  59     NSPropertyListFormat format;
  60     id plist = [NSPropertyListSerialization propertyListWithData: data
  61         options: NSPropertyListMutableContainersAndLeaves format: &format error: &error];
  62
  63     if (plist == nil)
  64         secerror("could not deserialize PersistentState from %@: %@", self, error);
  65
  66     return plist;
  67 }
  68
  69 @end
  70