Saving attachments from Mail.app through ScriptingBridge (Objective C) - objective-c

I'm trying to retrieve attachments from Mail.app through scriptingbridge. I'm using the following code to get access to my inbox messages.
MailApplication *mailApp = [SBApplication applicationWithBundleIdentifier:#"com.apple.mail"];
MailMailbox *inbox = [mailApp inbox];
SBElementArray *messages = [inbox messages];
By iterating over the SBElementArray, I can access an individual MailMessage object.
Each MailMessage object has a getter that retrieves another SBElementArray, this time filled with MailMailAttachment objects.
It's working, because if I put a NSLog(#"count:%lu",mailitem.attachments.count); it will print the correct amount of attachments. File name and size are also correct printed.
But when I iterate over the attachments array and save it, nothing happens.
NSURL *url = [[NSURL new] initFileURLWithPath:#"/Users/usr/Documents/tmp/"];
NSLog(#"count:%lu",mailitem.attachments.count);
for (MailMailAttachment *attachment in mailitem.attachments) {
NSLog(#"name:%#",attachment.name);
NSLog(#"size:%ld",attachment.fileSize);
[attachment saveIn:url as:MailSaveableFileFormatNativeFormat];
}
I didn't found any documentation about this method. From header file, it says:
- (void) saveIn:(NSURL *)in_ as:(MailSaveableFileFormat)as; // Save a document.
I'm assuming that the NSURL is the place in which I want to store the file, but I have no idea about MailSaveableFileFormat. I'm passing MailSaveableFileFormatNativeFormat, that I found on header file, but as I said, nothing happens. Not even a simple error message.
I also tried to initialize the NSURL with a directory and a complete filepath (path + filename). Same result.
Does anyone has an example? How do I save it?
TIA,
Bob

I managed to solve the problem. I was initializing NSURL wrong... The code that worked is:
for (MailMailAttachment *attachment in mailitem.attachments) {
NSString *filePath = [NSString stringWithFormat:#"%#%#",#"/Users/usr/Documents/tmp/",attachment.name];
NSURL *fileUrl = [NSURL fileURLWithPath:filePath];
[attachment saveIn:fileUrl as:MailSaveableFileFormatNativeFormat];
}

On my old system, I use a file path and nil like this [attachment saveIn:file_Path as:nil];
In my "Mail.h" : saveIn:(NSString *)in_ as:(NSString *)as;.
I know it changed on Lion NSURL instead of NSString) , but not in AppleScript script, you must specify the file path without suffering any other parameter --> save thisAttachment in filePath -- Applescript
So I think the complete file path + as:nil should work.

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How to see the path of a NSURL bookmark even if it's unavailable

I'm saving a NSURL given from a save panel in the user preferences. I'm wondering how to see the path of the URL even if the device on which the file resides is not available, i.e. [NSURL URLByResolvingBookmarkData:options:bookmarkDataIsStale:error:] returns nil.
The last known path of a bookmark can be retrieved like so:
NSDictionary *values = [[NSURL resourceValuesForKeys:#[NSURLPathKey]
fromBookmarkData:bookmarkData]
NSString *path = [values objectForKey:NSURLPathKey];
I made a full writeup of this.

Embedding XML to iOS application

I'm making my first game in iOS and I need to load some levels that are stored as XML. Level files are stored locally and everything works fine from emulator. However, since XML is loaded in the runtime when i try to test my game on an actual device it can't find the XML files since they are not actually part of the app.
I'm coming from Flash background so I might have a wrong idea how this is done on iOS but I need to somehow bundle those XML files with the app, or embed it in the code somehow? Is this possible?
Thanks a lot :)
Well The code to look up your app bundle for the specified file is
NSString *path = [[NSBundle mainBundle] pathForResource:#"fileName.xml" ofType:nil]
NSURL *xmlURL = [NSURL fileURLWithPath:path];
[[NSXMLParser alloc] initWithContentsOfURL: xmlURL]
Hope this helps you...
You could add the XML file to your project and run time read it up with something like this
NSArray *myPathList = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *myPath = [myPathList objectAtIndex:0];
NSError **err;
myPath = [myPath stringByAppendingPathComponent:fileName];
if([[NSFileManager defaultManager] fileExistsAtPath:myPath])
text = [NSString stringWithContentsOfFile:myPath encoding:NSUTF8StringEncoding error:err];
You could consider using JSON in instead of XML. At least to my knowledge the available XML parsers are not nearly as simply to use as SBJson for instance (https://github.com/stig/json-framework/)
Here is my solution in Swift 3.0. In addition to the code, you'll need to add your xml file as a data set in your Assets.xcassets. Do this by creating a new Data Set, giving it any name, and then dragging the xml file from the finder to your newly created data set. When you reference the file in your code, you'll use the file name of the file, and not the name of the data set.
var parseResults = false
if let path = Bundle.main.path(forResource: fileName, ofType: ".xml") {
let url = URL(fileURLWithPath: path)
if let xmlParser = XMLParser(contentsOf: urlToFile) {
xmlParser.delegate = self
parseResults = xmlParser.parse()
}
}

writeToFile doesn't change the content of the file xcode4 objective-c

I finished writing a little program, which is able to read and write a/into a .txt file.
When I execute the program, everything is running fine except that the content of the file doesn't change permanently. I got a writeToFile and "readFile" button and the content seems to change every time I press one of them, but when I open the file manually (while testing or after shutting down the program) theres still the origin content in it.
Doesn't the "real" file content change while just using the simulator? Or is it just me making some bad mistakes?
-(IBAction)buttonPressed { //The writeToFile Method
NSString *filePath = [[NSBundle mainBundle] pathForResource:#"test" ofType:#"txt"];
NSString *writeData = enterText.text;
NSError *error;
BOOL ok = [writeData writeToFile:filePath atomically:NO encoding:NSUnicodeStringEncoding error:&error];
if (!ok)
{
NSLog(#"Error while writing file at %#/n%#",filePath,[error localizedFailureReason]);
}
testText.text =#"File saved!";
enterText.text = #"";
enterText.placeholder =#"Enter your text here";
}
testText = TextView for Output
enterText = TextField for Input
Your filePath variable is pointing to a file within the resource bundle of your app (which is not writable). What you need to do is locate the user's Documents folder, and create your file there.

Unknown error creating file in objective c

I'm creating a mac app that needs to create a file with the contents of another file, i'm creating it as follows:
NSString *p = #"/AfilethatEXISTS.plist";
NSString *user1 = #"~/Library/MyApp/myFile";
NSString *pT1 = [user1 stringByExpandingTildeInPath];
[[NSFileManager alloc] createFileAtPath:[NSURL URLWithString:pT1] contents:[NSData dataWithContentsOfFile:p] attributes:nil];
However returning no error, its not creating the file?
There are several things wrong with this code, but not enough context to tell you what is going wrong.
First, there should never be a file in / directly. That directory should be sacrosanct and many users will not be able to write to that directory without admin access.
Secondly, paths should be managed via the path manipulation APIs on NSString and NSURL.
Next, pT1 isn't really an URL and that is URLWithString: may be returning nil. Use fileURLWithPath: instead.
Finally, there isn't any error checking in that code and, thus, there is no way to tell how you might have discovered no error. What have you checked?
First off, you're creating the file manager instance incorrectly. To create a new instance, you need to both allocate and initialize it.
You're trying to pass an NSURL object, which won't be created correctly since the string you're using to create it with isn't a URL. But that doesn't matter anyway, because even if the NSURL was created, -createFileAtPath:contents:attributes: expects an NSString - just pass pT1 directly.
Better still, since you're basically just copying p to pT1, use the NSFileManager method for doing that. Not only is it conceptually a better fit, it also gives you a chance to examine a returned NSError object to see what (if anything) went wrong.
NSError *error;
NSFileManager *fm = [[[NSFileManager alloc] init] autorelease];
if (![fm copyFileAtPath:p toPath:pT1 error:&error]) {
// If copyFileAtPath:toPath:error: returned FALSE, an error occurred, and
// error will point to an NSError instance with more information
}

Converting File Path From NSString To NSURL

I'm working through Cocoa smoothly, but this problem seems so basic it cancels out all the cool stuff I learned. :/
I have a generated file path, and it needs to be in NSURL format. From research, this is the code I wrote:
NSLog(#"Old path = %#", pathToFile);
NSURL *xmlURL = [[[NSURL alloc] init] fileURLWithPath:pathToFile];
NSLog(#"New path = %#", [xmlURL absoluteString]);
And the output:
2010-01-27 15:39:22.105 MusicLibraryStats[28574:a0f] Old path = file://localhost/Users/[username]/Music/iTunes/iTunes%20Music%20Library.xml
2010-01-27 15:39:22.105 MusicLibraryStats[28574:a0f] New path = (null)
First off, the alloc-init shouldn't even be necessary; other people seem to get away with it. In this case, if I don't alloc-init, I get an 'unrecognized selector' error on that line. Of course, now I'm just getting plain old (null).
Where did I goof?
Thanks!
The [[NSURL alloc] init] is not just unnecessary, it's invalid. fileURLWithPath: is a class method, which means you can only call it on the class object (that is, NSURL itself). It does not produce a compile error because -(NSURL *)init returns an object of type id, and does not result in a runtime error because -(NSURL *)init actually returns nil, and messages sent to nil will just cascade another nil as their return value.
This code should work:
NSString* pathToFile = #"/this/is/a/path";
NSURL* url = [NSURL fileURLWithPath:pathToFile];
I found your problem.
-[NSOpenPanel URLs] returns an array of NSURL objects, which you treat as NSString objects. That's not right. You should use the following:
NSURL* url = [[oPanel URLs] objectAtIndex:0];
The debugger could've show you that if you looked at the pathToFile variable. Make sure to check it next time. :) Hovering a variable with your mouse should get you its type.
However, remember that there are situations where you will legitimately encounter another type than the one you expected. For instance, the private NSPathStore2 class is part of the NSString cluster, and you can do everything NSString supports on NSPathStore2 objects. (If this happens and you're not too sure, check the documentation to see if the type you expect is a cluster type. That's how they're called in the documentation.)