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4oD: Search for MP4 versions of HDS programmes
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Some 4oD programmes available via HTTP Dynamic Streaming may also be
available in normal MP4 versions catalogued with programme IDs close
to the default HDS programme ID (h/t: 4od-dl).  GiA will search adjacent
PIDs for MP4 versions of a programme, preferring the PS3 version to any
other MP4 version.  The range of PIDs searched is +/- the value of the
hidden preference 4oD_MP4SearchRange (default=10). The MP4 search may be
disabled by setting boolean hidden preference 4oD_SkipMP4Search to YES.
Alternate MP4 version are generally only available for one month after
transmission.
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[email protected] committed Dec 30, 2012
1 parent 588e90e commit 1b4ab87
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Showing 3 changed files with 189 additions and 22 deletions.
207 changes: 186 additions & 21 deletions FourODDownload.m
View file
Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,8 @@ - (void)launchMetaRequest

-(void)dataRequestFinished:(ASIHTTPRequest *)request
{
if (!running)
return;
NSString *responseString = [[NSString alloc] initWithData:[request responseData] encoding:NSUTF8StringEncoding];
BOOL verbose = [[NSUserDefaults standardUserDefaults] boolForKey:@"Verbose"];
if (verbose)
Expand Down Expand Up @@ -103,6 +105,8 @@ -(void)dataRequestFinished:(ASIHTTPRequest *)request

-(void)hostLookupFinished:(NSHost *)aHost
{
if (!running)
return;
NSString *hostAddr = nil;
if (aHost)
hostAddr = [aHost address];
Expand All @@ -118,7 +122,6 @@ -(void)hostLookupFinished:(NSHost *)aHost
NSLog(@"Metadata URL: %@",requestURL);
[self addToLog:[NSString stringWithFormat:@"INFO: Metadata URL: %@", requestURL] noTag:YES];


ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:requestURL];
[request setDidFinishSelector:@selector(metaRequestFinished:)];
[request setTimeOutSeconds:10];
Expand Down Expand Up @@ -180,8 +183,20 @@ -(void)hostLookupFinished:(NSHost *)aHost
[self addToLog:@"INFO: Requesting Metadata." noTag:YES];
[request startAsynchronous];
}

-(void)metaRequestFinished:(ASIHTTPRequest *)request
{
if (!running)
return;
BOOL skipSearch = [[NSUserDefaults standardUserDefaults] boolForKey:[NSString stringWithFormat:@"%@SkipMP4Search", defaultsPrefix]];
NSInteger searchRange = [[NSUserDefaults standardUserDefaults] integerForKey:[NSString stringWithFormat:@"%@MP4SearchRange", defaultsPrefix]];
if (!searchRange)
searchRange = 10;
NSInteger realPID = [[show realPID] integerValue];
NSInteger minPID = realPID - searchRange;
NSInteger maxPID = realPID + searchRange;
NSInteger currentPID = [request tag];
NSString *mp4UriData = [[request userInfo] valueForKey:@"mp4UriData"];
NSLog(@"Response Status Code: %ld",(long)[request responseStatusCode]);
if ([request responseStatusCode] == 0)
{
Expand All @@ -201,13 +216,37 @@ -(void)metaRequestFinished:(ASIHTTPRequest *)request
}
else if ([request responseStatusCode] != 200)
{
[self addToLog:@"ERROR: Could not retrieve program metadata." noTag:YES];
[show setSuccessful:[NSNumber numberWithBool:NO]];
[show setComplete:[NSNumber numberWithBool:YES]];
[show setValue:@"Download Failed" forKey:@"status"];
[nc postNotificationName:@"DownloadFinished" object:show];
[self addToLog:@"Download Failed" noTag:NO];
return;
if (currentPID != 0)
{
if (currentPID < maxPID)
{
if (realPID - currentPID == 1)
++currentPID;
[self retryMetaRequest:request pid:++currentPID];
return;
}
else
{
[self addToLog:@"GiA does not support downloading this show."];
[self addToLog:@" HTTP Dynamic Streaming Detected"];
[show setReasonForFailure:@"4oDHTTP"];
[show setComplete:[NSNumber numberWithBool:YES]];
[show setSuccessful:[NSNumber numberWithBool:NO]];
[show setValue:@"Download Failed" forKey:@"status"];
[nc postNotificationName:@"DownloadFinished" object:show];
return;
}
}
else
{
[self addToLog:@"ERROR: Could not retrieve program metadata." noTag:YES];
[show setSuccessful:[NSNumber numberWithBool:NO]];
[show setComplete:[NSNumber numberWithBool:YES]];
[show setValue:@"Download Failed" forKey:@"status"];
[nc postNotificationName:@"DownloadFinished" object:show];
[self addToLog:@"Download Failed" noTag:NO];
return;
}
}


Expand All @@ -221,27 +260,124 @@ -(void)metaRequestFinished:(ASIHTTPRequest *)request

NSScanner *scanner = [NSScanner scannerWithString:responseString];

if ([responseString rangeOfString:@"f4m"].location != NSNotFound)
NSString *programmeNumber = nil;
[scanner scanUpToString:@"<programmeNumber>" intoString:nil];
[scanner scanString:@"<programmeNumber>" intoString:nil];
[scanner scanUpToString:@"</programmeNumber>" intoString:&programmeNumber];

NSString *brandTitle = nil;
[scanner scanUpToString:@"<brandTitle>" intoString:nil];
[scanner scanString:@"<brandTitle>" intoString:nil];
[scanner scanUpToString:@"</brandTitle>" intoString:&brandTitle];

NSString *uriData = nil;
[scanner scanUpToString:@"<uriData>" intoString:nil];
[scanner scanString:@"<uriData>" intoString:nil];
[scanner scanUpToString:@"</uriData>" intoString:&uriData];

scanner = [NSScanner scannerWithString:uriData];
[scanner scanUpToString:@"<streamUri>" intoString:nil];
[scanner scanString:@"<streamUri>" intoString:nil];
NSString *streamUri = nil;
[scanner scanUpToString:@"</" intoString:&streamUri];

if (verbose)
[self addToLog:[NSString stringWithFormat:@"DEBUG: Metadata Processed: programmeNumber=%@ brandTitle=%@ uriData=%@ streamUri=%@", programmeNumber, brandTitle, uriData, streamUri]];

if ([streamUri hasSuffix:@".f4m"])
{
if (skipSearch)
{
[self addToLog:@"GiA does not support downloading this show."];
[self addToLog:@" HTTP Dynamic Streaming Detected"];
[show setReasonForFailure:@"4oDHTTP"];
[show setComplete:[NSNumber numberWithBool:YES]];
[show setSuccessful:[NSNumber numberWithBool:NO]];
[show setValue:@"Download Failed" forKey:@"status"];
[nc postNotificationName:@"DownloadFinished" object:show];
return;
}
if (currentPID == 0)
{
[self retryMetaRequest:request pid:minPID brandTitle:brandTitle programmeNumber:programmeNumber];
return;
}
else if (currentPID < maxPID)
{
if (realPID - currentPID == 1)
++currentPID;
[self retryMetaRequest:request pid:++currentPID];
return;
}
}
else if ([streamUri hasSuffix:@".mp4"])
{
if (currentPID != 0)
{
if ([brandTitle isEqualToString:[[request userInfo] valueForKey:@"brandTitle"]] && [programmeNumber isEqualToString:[[request userInfo] valueForKey:@"programmeNumber"]])
{
[self addToLog:[NSString stringWithFormat:@"INFO: MP4 Stream Found: %@", streamUri] noTag:YES];
mp4UriData = uriData;
if ([streamUri rangeOfString:@"PS3" options:NSCaseInsensitiveSearch].location == NSNotFound)
{
if (currentPID < maxPID)
{
if (realPID - currentPID == 1)
++currentPID;
[self retryMetaRequest:request pid:++currentPID brandTitle:brandTitle programmeNumber:programmeNumber mp4UriData:mp4UriData];
return;
}
}
}
else if (currentPID < maxPID)
{
if (realPID - currentPID == 1)
++currentPID;
[self retryMetaRequest:request pid:++currentPID];
return;
}
}
else
{
mp4UriData = uriData;
}
}
else if (currentPID != 0)
{
if (currentPID < maxPID)
{
if (realPID - currentPID == 1)
currentPID++;
[self retryMetaRequest:request pid:++currentPID];
return;
}
}

if (!mp4UriData)
{
[self addToLog:@"GiA does not support downloading this show."];
[self addToLog:@" HTTP Dynamic Streaming Detected"];
if (currentPID != 0)
{
[self addToLog:@" HTTP Dynamic Streaming Detected"];
[show setReasonForFailure:@"4oDHTTP"];
}
else
{
[self addToLog:@" Did not find suitable download format"];
[show setReasonForFailure:@"4oDFormat"];
}
[show setComplete:[NSNumber numberWithBool:YES]];
[show setSuccessful:[NSNumber numberWithBool:NO]];
[show setValue:@"Download Failed" forKey:@"status"];
[show setReasonForFailure:@"4oDHTTP"];
[nc postNotificationName:@"DownloadFinished" object:show];
return;
}

NSString *uriData = nil;
[scanner scanUpToString:@"<uriData>" intoString:nil];
[scanner scanString:@"<uriData>" intoString:nil];
[scanner scanUpToString:@"</uriData>" intoString:&uriData];

uriData = mp4UriData;
scanner = [NSScanner scannerWithString:uriData];
[scanner scanUpToString:@"<streamUri>" intoString:nil];
[scanner scanString:@"<streamUri>" intoString:nil];
NSString *streamUri = nil;
streamUri = nil;
[scanner scanUpToString:@"</" intoString:&streamUri];
[scanner scanUpToString:@"<token>" intoString:nil];
[scanner scanString:@"<token>" intoString:nil];
Expand All @@ -254,15 +390,15 @@ -(void)metaRequestFinished:(ASIHTTPRequest *)request

NSString *decodedToken = [self decodeToken:token];
NSLog(@"%@",decodedToken);

if (verbose)
[self addToLog:[NSString stringWithFormat:@"DEBUG: Metadata Processed: uriData=%@ streamUri=%@ token=%@ cdn=%@ decodedToken=%@", uriData, streamUri, token, cdn, decodedToken]];
if (!(uriData && streamUri && token && cdn && decodedToken))
[NSException raise:@"Parsing Error." format:@"Could not process 4oD Metadata"];


NSString *auth = nil, *rtmpURL = nil, *app = nil, *playpath = nil;
@try
{
if (!(uriData && streamUri && token && cdn && decodedToken))
[NSException raise:@"Parsing Error." format:@"Could not process 4oD Metadata"];

if ([cdn isEqualToString:@"ll"])
{
[scanner setScanLocation:0];
Expand Down Expand Up @@ -399,6 +535,35 @@ -(void)metaRequestFinished:(ASIHTTPRequest *)request

}

-(void)retryMetaRequest:(ASIHTTPRequest *)request pid:(NSInteger)pid pidInfo:(NSDictionary *)pidInfo
{
NSURL *retryURL = [[[request url] URLByDeletingLastPathComponent] URLByAppendingPathComponent:[NSString stringWithFormat:@"%ld", pid]];
[self addToLog:[NSString stringWithFormat:@"INFO: Retry Metadata URL: %@", retryURL] noTag:YES];
ASIHTTPRequest *retryRequest = [[request copy] autorelease];
[retryRequest setURL:retryURL];
[retryRequest setTag:pid];
if (pidInfo)
[retryRequest setUserInfo:pidInfo];
[retryRequest startAsynchronous];
}

-(void)retryMetaRequest:(ASIHTTPRequest *)request pid:(NSInteger)pid
{
[self retryMetaRequest:request pid:pid pidInfo:nil];
}

-(void)retryMetaRequest:(ASIHTTPRequest *)request pid:(NSInteger)pid brandTitle:(NSString *)brandTitle programmeNumber:(NSString *)programmeNumber
{
NSDictionary *pidInfo = [NSDictionary dictionaryWithObjectsAndKeys: brandTitle, @"brandTitle", programmeNumber, @"programmeNumber", nil];
[self retryMetaRequest:request pid:pid pidInfo:pidInfo];
}

-(void)retryMetaRequest:(ASIHTTPRequest *)request pid:(NSInteger)pid brandTitle:(NSString *)brandTitle programmeNumber:(NSString *)programmeNumber mp4UriData:(NSString *)mp4UriData
{
NSDictionary *pidInfo = [NSDictionary dictionaryWithObjectsAndKeys: brandTitle, @"brandTitle", programmeNumber, @"programmeNumber", mp4UriData, @"mp4UriData", nil];
[self retryMetaRequest:request pid:pid pidInfo:pidInfo];
}

- (NSString *)decodeToken:(NSString *)string
{
PyObject *pName, *pModule, *pFunc;
Expand Down
2 changes: 1 addition & 1 deletion Info.plist
View file
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>482</string>
<string>483</string>
<key>CFBundleShortVersionString</key>
<string>1.5.1</string>
<key>NSMainNibFile</key>
Expand Down
2 changes: 2 additions & 0 deletions ReasonsForFailure.plist
View file
Original file line number Diff line number Diff line change
Expand Up @@ -40,5 +40,7 @@ proxy option in preferences.</string>
<key>4oDHTTP</key>
<string>GiA does not support downloading HTTP Dynamic Streaming programmes from 4oD.
Unfortunately, this show is one of them.</string>
<key>4oDFormat</key>
<string>GiA did not find a suitable download format for the 4oD programme.</string>
</dict>
</plist>

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