cog/Audio/PluginController.m

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#import "PluginController.h"
#import "Plugin.h"
#import "CogPluginMulti.h"
#import "Logging.h"
#import "NSFileHandle+CreateFile.h"
@implementation PluginController
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@synthesize sources;
@synthesize containers;
@synthesize metadataReaders;
@synthesize propertiesReadersByExtension;
@synthesize propertiesReadersByMimeType;
@synthesize decodersByExtension;
@synthesize decodersByMimeType;
@synthesize configured;
static PluginController *sharedPluginController = nil;
+ (id<CogPluginController>)sharedPluginController
{
@synchronized(self) {
if (sharedPluginController == nil) {
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sharedPluginController = [[self alloc] init];
}
}
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return sharedPluginController;
}
- (id)init {
self = [super init];
if (self) {
self.sources = [[NSMutableDictionary alloc] init];
self.containers = [[NSMutableDictionary alloc] init];
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self.metadataReaders = [[NSMutableDictionary alloc] init];
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self.propertiesReadersByExtension = [[NSMutableDictionary alloc] init];
self.propertiesReadersByMimeType = [[NSMutableDictionary alloc] init];
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self.decodersByExtension = [[NSMutableDictionary alloc] init];
self.decodersByMimeType = [[NSMutableDictionary alloc] init];
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[self setup];
}
return self;
}
- (void)setup
{
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if (self.configured == NO) {
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self.configured = YES;
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(bundleDidLoad:) name:NSBundleDidLoadNotification object:nil];
[self loadPlugins];
[self printPluginInfo];
}
}
- (void)bundleDidLoad:(NSNotification *)notification
{
NSArray *classNames = [[notification userInfo] objectForKey:@"NSLoadedClasses"];
for (NSString *className in classNames)
{
Class bundleClass = NSClassFromString(className);
if ([bundleClass conformsToProtocol:@protocol(CogVersionCheck)]) {
DLog(@"Component has version check: %@", className);
if (![bundleClass shouldLoadForOSVersion:[[NSProcessInfo processInfo] operatingSystemVersion]])
{
DLog(@"Plugin fails OS version check, ignoring");
return;
}
}
}
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for (NSString *className in classNames)
{
DLog(@"Class loaded: %@", className);
Class bundleClass = NSClassFromString(className);
if ([bundleClass conformsToProtocol:@protocol(CogContainer)]) {
[self setupContainer:className];
}
if ([bundleClass conformsToProtocol:@protocol(CogDecoder)]) {
[self setupDecoder:className];
}
if ([bundleClass conformsToProtocol:@protocol(CogMetadataReader)]) {
[self setupMetadataReader:className];
}
if ([bundleClass conformsToProtocol:@protocol(CogPropertiesReader)]) {
[self setupPropertiesReader:className];
}
if ([bundleClass conformsToProtocol:@protocol(CogSource)]) {
[self setupSource:className];
}
}
}
- (void)loadPluginsAtPath:(NSString *)path
{
NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:nil];
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for (NSString *pname in dirContents)
{
NSString *ppath;
ppath = [NSString pathWithComponents:@[path,pname]];
if ([[pname pathExtension] isEqualToString:@"bundle"])
{
NSBundle *b = [NSBundle bundleWithPath:ppath];
[b load];
}
}
}
- (void)loadPlugins
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
NSString *basePath = [[paths firstObject] stringByAppendingPathComponent:@"Cog"];
[self loadPluginsAtPath:[[NSBundle mainBundle] builtInPlugInsPath]];
[self loadPluginsAtPath:[basePath stringByAppendingPathComponent:@"Plugins"]];
}
- (void)setupContainer:(NSString *)className
{
Class container = NSClassFromString(className);
if (container && [container respondsToSelector:@selector(fileTypes)]) {
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for (id fileType in [container fileTypes])
{
NSString *ext = [fileType lowercaseString];
NSMutableArray *containerSet;
if (![containers objectForKey:ext])
{
containerSet = [[NSMutableArray alloc] init];
[containers setObject:containerSet forKey:ext];
}
else
containerSet = [containers objectForKey:ext];
[containerSet addObject:className];
}
}
}
- (void)setupDecoder:(NSString *)className
{
Class decoder = NSClassFromString(className);
if (decoder && [decoder respondsToSelector:@selector(fileTypes)]) {
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for (id fileType in [decoder fileTypes])
{
NSString *ext = [fileType lowercaseString];
NSMutableArray *decoders;
if (![decodersByExtension objectForKey:ext])
{
decoders = [[NSMutableArray alloc] init];
[decodersByExtension setObject:decoders forKey:ext];
}
else
decoders = [decodersByExtension objectForKey:ext];
[decoders addObject:className];
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}
}
if (decoder && [decoder respondsToSelector:@selector(mimeTypes)]) {
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for (id mimeType in [decoder mimeTypes])
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{
NSString *mimetype = [mimeType lowercaseString];
NSMutableArray *decoders;
if (![decodersByMimeType objectForKey:mimetype])
{
decoders = [[NSMutableArray alloc] init];
[decodersByMimeType setObject:decoders forKey:mimetype];
}
else
decoders = [decodersByMimeType objectForKey:mimetype];
[decoders addObject:className];
}
}
}
- (void)setupMetadataReader:(NSString *)className
{
Class metadataReader = NSClassFromString(className);
if (metadataReader && [metadataReader respondsToSelector:@selector(fileTypes)]) {
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for (id fileType in [metadataReader fileTypes])
{
NSString *ext = [fileType lowercaseString];
NSMutableArray *readers;
if (![metadataReaders objectForKey:ext])
{
readers = [[NSMutableArray alloc] init];
[metadataReaders setObject:readers forKey:ext];
}
else
readers = [metadataReaders objectForKey:ext];
[readers addObject:className];
}
}
}
- (void)setupPropertiesReader:(NSString *)className
{
Class propertiesReader = NSClassFromString(className);
if (propertiesReader && [propertiesReader respondsToSelector:@selector(fileTypes)]) {
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for (id fileType in [propertiesReader fileTypes])
{
NSString *ext = [fileType lowercaseString];
NSMutableArray *readers;
if (![propertiesReadersByExtension objectForKey:ext])
{
readers = [[NSMutableArray alloc] init];
[propertiesReadersByExtension setObject:readers forKey:ext];
}
else
readers = [propertiesReadersByExtension objectForKey:ext];
[readers addObject:className];
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}
}
if (propertiesReader && [propertiesReader respondsToSelector:@selector(mimeTypes)]) {
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for (id mimeType in [propertiesReader mimeTypes])
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{
NSString *mimetype = [mimeType lowercaseString];
NSMutableArray *readers;
if (![propertiesReadersByMimeType objectForKey:mimetype])
{
readers = [[NSMutableArray alloc] init];
[propertiesReadersByMimeType setObject:readers forKey:mimetype];
}
else
readers = [propertiesReadersByMimeType objectForKey:mimetype];
[readers addObject:className];
}
}
}
- (void)setupSource:(NSString *)className
{
Class source = NSClassFromString(className);
if (source && [source respondsToSelector:@selector(schemes)]) {
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for (id scheme in [source schemes])
{
[sources setObject:className forKey:scheme];
}
}
}
- (void)printPluginInfo
{
ALog(@"Sources: %@", self.sources);
ALog(@"Containers: %@", self.containers);
ALog(@"Metadata Readers: %@", self.metadataReaders);
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ALog(@"Properties Readers By Extension: %@", self.propertiesReadersByExtension);
ALog(@"Properties Readers By Mime Type: %@", self.propertiesReadersByMimeType);
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ALog(@"Decoders by Extension: %@", self.decodersByExtension);
ALog(@"Decoders by Mime Type: %@", self.decodersByMimeType);
#if 0
// XXX Keep in sync with Info.plist on disk!
NSString * plistHeader = @"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n\
<plist version=\"1.0\">\n\
<dict>\n\
\t<key>CFBundleDevelopmentRegion</key>\n\
\t<string>English</string>\n\
\t<key>CFBundleDocumentTypes</key>\n\
\t<array>\n\
\t\t<dict>\n\
\t\t\t<key>CFBundleTypeExtensions</key>\n\
\t\t\t<array>\n\
\t\t\t\t<string>*</string>\n\
\t\t\t</array>\n\
\t\t\t<key>CFBundleTypeIconFile</key>\n\
\t\t\t<string>song.icns</string>\n\
\t\t\t<key>CFBundleTypeOSTypes</key>\n\
\t\t\t<array>\n\
\t\t\t\t<string>****</string>\n\
\t\t\t\t<string>fold</string>\n\
\t\t\t\t<string>disk</string>\n\
\t\t\t</array>\n\
\t\t\t<key>CFBundleTypeRole</key>\n\
\t\t\t<string>None</string>\n\
\t\t</dict>\n";
NSString * plistFooter = @"\t</array>\n\
\t<key>CFBundleExecutable</key>\n\
\t<string>Cog</string>\n\
\t<key>CFBundleHelpBookFolder</key>\n\
\t<string>Cog.help</string>\n\
\t<key>CFBundleHelpBookName</key>\n\
\t<string>org.cogx.cog.help</string>\n\
\t<key>CFBundleIdentifier</key>\n\
\t<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>\n\
\t<key>CFBundleInfoDictionaryVersion</key>\n\
\t<string>6.0</string>\n\
\t<key>CFBundlePackageType</key>\n\
\t<string>APPL</string>\n\
\t<key>CFBundleShortVersionString</key>\n\
\t<string>0.08</string>\n\
\t<key>CFBundleSignature</key>\n\
\t<string>????</string>\n\
\t<key>CFBundleVersion</key>\n\
\t<string>r516</string>\n\
\t<key>LSApplicationCategoryType</key>\n\
\t<string>public.app-category.music</string>\n\
\t<key>LSMinimumSystemVersion</key>\n\
\t<string>$(MACOSX_DEPLOYMENT_TARGET)</string>\n\
\t<key>NSAppTransportSecurity</key>\n\
\t<dict>\n\
\t\t<key>NSAllowsArbitraryLoads</key>\n\
\t\t<true/>\n\
\t</dict>\n\
\t<key>NSAppleScriptEnabled</key>\n\
\t<string>YES</string>\n\
\t<key>NSCalendarsUsageDescription</key>\n\
\t<string>Cog has no use for your calendar information. Why are you trying to open your Calendar with an audio player?</string>\n\
\t<key>NSCameraUsageDescription</key>\n\
\t<string>Cog is an audio player. It will never use your camera. Why is it asking for permission to use your camera?</string>\n\
\t<key>NSContactsUsageDescription</key>\n\
\t<string>Cog has no use for your contacts information. Why are you trying to open your contacts with an audio player?</string>\n\
\t<key>NSLocationUsageDescription</key>\n\
\t<string>Cog has no use for your location information. Something is obviously wrong with the application.</string>\n\
\t<key>NSMainNibFile</key>\n\
\t<string>MainMenu</string>\n\
\t<key>NSMicrophoneUsageDescription</key>\n\
\t<string>Cog is an audio player. It does not, however, record audio. Why is it asking for permission to use your microphone?</string>\n\
\t<key>NSPhotoLibraryUsageDescription</key>\n\
\t<string>Cog is an audio player. Why are you trying to access your Photos Library with an audio player?</string>\n\
\t<key>NSPrincipalClass</key>\n\
\t<string>MediaKeysApplication</string>\n\
\t<key>NSRemindersUsageDescription</key>\n\
\t<string>Cog has no use for your reminders. Why are you trying to access them with an audio player?</string>\n\
\t<key>SUFeedURL</key>\n\
\t<string>https://cogcdn.cog.losno.co/mercury.xml</string>\n\
\t<key>SUPublicEDKey</key>\n\
\t<string>omxG7Rp0XK9/YEvKbVy7cd44eVAh1LJB6CmjQwjOJz4=</string>\n\
</dict>\n\
</plist>\n";
NSMutableArray * decodersRegistered = [[NSMutableArray alloc] init];
NSArray * allKeys = [self.decodersByExtension allKeys];
for (NSString * ext in allKeys) {
NSArray * decoders = [self.decodersByExtension objectForKey:ext];
for (NSString * decoder in decoders) {
if (![decodersRegistered containsObject:decoder]) {
[decodersRegistered addObject:decoder];
}
}
}
NSMutableArray * stringList = [[NSMutableArray alloc] init];
[stringList addObject:plistHeader];
// These aren't handled by decoders, but as containers
NSArray * staticTypes = @[
@[@"M3U Playlist File", @"m3u.icns", @"m3u", @"m3u8"],
@[@"PLS Playlist File", @"pls.icns", @"pls"],
@[@"RAR Archive of SPC Files", @"vg.icns", @"rsn"],
@[@"7Z Archive of VGM Files", @"vg.icns", @"vgm7z"]
];
NSMutableArray * assocTypes = [[NSMutableArray alloc] init];
[assocTypes addObjectsFromArray:staticTypes];
for (NSString * decoderString in decodersRegistered) {
Class decoder = NSClassFromString(decoderString);
if (decoder && [decoder respondsToSelector:@selector(fileTypeAssociations)]) {
NSArray * types = [decoder fileTypeAssociations];
[assocTypes addObjectsFromArray:types];
}
}
for (NSArray * type in assocTypes) {
[stringList addObject:@"\t\t<dict>\n\
\t\t\t<key>CFBundleTypeExtensions</key>\n\
\t\t\t<array>\n\
"];
for (size_t i = 2; i < [type count]; ++i) {
[stringList addObject:@"\t\t\t\t<string>"];
[stringList addObject:[[type objectAtIndex:i] lowercaseString]];
[stringList addObject:@"</string>\n"];
}
[stringList addObject:@"\t\t\t</array>\n\
\t\t\t<key>CFBundleTypeIconFile</key>\n\
\t\t\t<string>"];
[stringList addObject:[type objectAtIndex:1]];
[stringList addObject:@"</string>\n\
\t\t\t<key>CFBundleTypeName</key>\n\
\t\t\t<string>"];
[stringList addObject:[type objectAtIndex:0]];
[stringList addObject:@"</string>\n\
\t\t\t<key>CFBundleTypeRole</key>\n\
\t\t\t<string>Viewer</string>\n\
\t\t\t<key>LSTypeIsPackage</key>\n\
\t\t\t<false/>\n\
\t\t</dict>\n"];
}
[stringList addObject:plistFooter];
NSFileHandle *fileHandle = [NSFileHandle fileHandleForWritingAtPath:@"/tmp/Cog_Info.plist" createFile:YES];
if (!fileHandle) {
DLog(@"Error saving Info.plist!");
return;
}
[fileHandle truncateFileAtOffset:0];
[fileHandle writeData:[[stringList componentsJoinedByString:@""] dataUsingEncoding:NSUTF8StringEncoding]];
[fileHandle closeFile];
#endif
}
- (id<CogSource>) audioSourceForURL:(NSURL *)url
{
NSString *scheme = [url scheme];
Class source = NSClassFromString([sources objectForKey:scheme]);
return [[source alloc] init];
}
- (NSArray *) urlsForContainerURL:(NSURL *)url
{
NSString *ext = [url pathExtension];
NSArray *containerSet = [containers objectForKey:[ext lowercaseString]];
NSString *classString;
if (containerSet) {
if ( [containerSet count] > 1 ) {
return [CogContainerMulti urlsForContainerURL:url containers:containerSet];
}
else {
classString = [containerSet objectAtIndex:0];
}
}
else {
return nil;
}
Class container = NSClassFromString(classString);
return [container urlsForContainerURL:url];
}
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//Note: Source is assumed to already be opened.
- (id<CogDecoder>) audioDecoderForSource:(id <CogSource>)source skipCue:(BOOL)skip
{
NSString *ext = [[source url] pathExtension];
NSArray *decoders = [decodersByExtension objectForKey:[ext lowercaseString]];
NSString *classString;
if (decoders) {
if ( [decoders count] > 1 ) {
if (skip)
{
NSMutableArray * _decoders = [decoders mutableCopy];
for (int i = 0; i < [_decoders count];)
{
if ([[_decoders objectAtIndex:i] isEqualToString:@"CueSheetDecoder"])
[_decoders removeObjectAtIndex:i];
else
++i;
}
return [[CogDecoderMulti alloc] initWithDecoders:_decoders];
}
return [[CogDecoderMulti alloc] initWithDecoders:decoders];
}
else {
classString = [decoders objectAtIndex:0];
}
}
else {
decoders = [decodersByMimeType objectForKey:[[source mimeType] lowercaseString]];
if (decoders) {
if ( [decoders count] > 1 ) {
return [[CogDecoderMulti alloc] initWithDecoders:decoders];
}
else {
classString = [decoders objectAtIndex:0];
}
}
else {
classString = @"SilenceDecoder";
}
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}
Class decoder = NSClassFromString(classString);
return [[decoder alloc] init];
}
- (NSDictionary *)metadataForURL:(NSURL *)url skipCue:(BOOL)skip
{
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NSString * urlScheme = [url scheme];
if ([urlScheme isEqualToString:@"http"] ||
[urlScheme isEqualToString:@"https"])
return nil;
NSString *ext = [url pathExtension];
NSArray *readers = [metadataReaders objectForKey:[ext lowercaseString]];
NSString *classString;
if (readers) {
if ( [readers count] > 1 ) {
if (skip)
{
NSMutableArray *_readers = [readers mutableCopy];
for (int i = 0; i < [_readers count];)
{
if ([[_readers objectAtIndex:i] isEqualToString:@"CueSheetMetadataReader"])
[_readers removeObjectAtIndex:i];
else
++i;
}
return [CogMetadataReaderMulti metadataForURL:url readers:_readers];
}
return [CogMetadataReaderMulti metadataForURL:url readers:readers];
}
else {
classString = [readers objectAtIndex:0];
}
}
else {
return nil;
}
Class metadataReader = NSClassFromString(classString);
return [metadataReader metadataForURL:url];
}
//If no properties reader is defined, use the decoder's properties.
- (NSDictionary *)propertiesForURL:(NSURL *)url
{
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NSString * urlScheme = [url scheme];
if ([urlScheme isEqualToString:@"http"] ||
[urlScheme isEqualToString:@"https"])
return nil;
NSDictionary *properties = nil;
NSString *ext = [url pathExtension];
id<CogSource> source = [self audioSourceForURL:url];
if (![source open:url])
return nil;
NSArray *readers = [propertiesReadersByExtension objectForKey:[ext lowercaseString]];
NSString *classString = nil;
if (readers)
{
if ( [readers count] > 1 ) {
properties = [CogPropertiesReaderMulti propertiesForSource:source readers:readers];
if (properties != nil && [properties count])
return properties;
}
else {
classString = [readers objectAtIndex:0];
}
}
else {
readers = [propertiesReadersByMimeType objectForKey:[[source mimeType] lowercaseString]];
if (readers)
{
if ( [readers count] > 1 ) {
properties = [CogPropertiesReaderMulti propertiesForSource:source readers:readers];
if (properties != nil && [properties count])
return properties;
}
else {
classString = [readers objectAtIndex:0];
}
}
}
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if (classString)
{
Class propertiesReader = NSClassFromString(classString);
properties = [propertiesReader propertiesForSource:source];
if (properties != nil && [properties count])
return properties;
}
{
id<CogDecoder> decoder = [self audioDecoderForSource:source skipCue:NO];
if (![decoder open:source])
{
return nil;
}
NSDictionary *properties = [decoder properties];
[decoder close];
return properties;
}
}
- (int)putMetadataInURL:(NSURL *)url
{
return 0;
}
@end