cog/Playlist/XmlContainer.m

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//
// XmlContainer.m
// Xml
//
// Created by Christopher Snowhill on 10/9/13.
// Copyright 2013 __NoWork, Inc__. All rights reserved.
//
#import "XmlContainer.h"
#import <PlaylistEntry.h>
#import "Logging.h"
@implementation XmlContainer
+ (NSURL *)urlForPath:(NSString *)path relativeTo:(NSString *)baseFilename
{
NSRange protocolRange = [path rangeOfString:@"://"];
if (protocolRange.location != NSNotFound)
{
return [NSURL URLWithString:path];
}
NSMutableString *unixPath = [path mutableCopy];
//Get the fragment
NSString *fragment = @"";
NSScanner *scanner = [NSScanner scannerWithString:unixPath];
NSCharacterSet *characterSet = [NSCharacterSet characterSetWithCharactersInString:@"#1234567890"];
while (![scanner isAtEnd]) {
NSString *possibleFragment;
[scanner scanUpToString:@"#" intoString:nil];
if ([scanner scanCharactersFromSet:characterSet intoString:&possibleFragment] && [scanner isAtEnd])
{
fragment = possibleFragment;
[unixPath deleteCharactersInRange:NSMakeRange([scanner scanLocation] - [possibleFragment length], [possibleFragment length])];
break;
}
}
DLog(@"Fragment: %@", fragment);
if (![unixPath hasPrefix:@"/"]) {
//Only relative paths would have windows backslashes.
[unixPath replaceOccurrencesOfString:@"\\" withString:@"/" options:0 range:NSMakeRange(0, [unixPath length])];
NSString *basePath = [[[baseFilename stringByStandardizingPath] stringByDeletingLastPathComponent] stringByAppendingString:@"/"];
[unixPath insertString:basePath atIndex:0];
}
//Append the fragment
NSURL *url = [NSURL URLWithString:[[[NSURL fileURLWithPath:unixPath] absoluteString] stringByAppendingString: fragment]];
[unixPath release];
return url;
}
+ (NSDictionary *)entriesForContainerURL:(NSURL *)url
{
if (![url isFileURL])
return [NSArray array];
NSError *nserr;
NSString *error;
NSString *filename = [url path];
NSString * contents = [NSString stringWithContentsOfFile:filename encoding:NSUTF8StringEncoding error:&nserr];
NSData* plistData = [contents dataUsingEncoding:NSUTF8StringEncoding];
NSPropertyListFormat format;
id plist = [NSPropertyListSerialization propertyListFromData:plistData mutabilityOption:NSPropertyListImmutable format:&format errorDescription:&error];
if(!plist){
ALog(@"Error: %@",error);
[error release];
return nil;
}
BOOL isArray = [plist isKindOfClass:[NSArray class]];
BOOL isDict = [plist isKindOfClass:[NSDictionary class]];
if (!isDict && !isArray) return nil;
NSArray * items = (isArray) ? (NSArray*)plist : [(NSDictionary *)plist objectForKey:@"items"];
NSDictionary *albumArt = (isArray) ? nil : [(NSDictionary *)plist objectForKey:@"albumArt"];
NSArray *queueList = (isArray) ? [NSArray array] : [(NSDictionary *)plist objectForKey:@"queue"];
NSMutableArray *entries = [NSMutableArray array];
for (NSDictionary *entry in items)
{
NSMutableDictionary * preparedEntry = [NSMutableDictionary dictionaryWithDictionary:entry];
[preparedEntry setObject:[self urlForPath:[preparedEntry objectForKey:@"URL"] relativeTo:filename] forKey:@"URL"];
if (albumArt && [preparedEntry objectForKey:@"albumArt"])
[preparedEntry setObject:[albumArt objectForKey:[preparedEntry objectForKey:@"albumArt"]] forKey:@"albumArt"];
[entries addObject:[NSDictionary dictionaryWithDictionary:preparedEntry]];
}
return [NSDictionary dictionaryWithObjectsAndKeys:entries, @"entries", queueList, @"queue", nil];
}
@end