I have upload file on FTP using this classes.
I am using this method for uploading
- upload
{
//the upload request needs the input data to be NSData
//so we first convert the image to NSData
UIImage * ourImage = [UIImage imageNamed:#"space.jpg"];
NSData * ourImageData = UIImageJPEGRepresentation(ourImage, 100);
//we create the upload request
//we don't autorelease the object so that it will be around when the callback gets called
//this is not a good practice, in real life development you should use a retain property to store a reference to the request
WRRequestUpload * uploadImage = [[WRRequestUpload alloc] init];
uploadImage.delegate = self;
//for anonymous login just leave the username and password nil
uploadImage.hostname = #"xxx.xxx.xxx.xxx";
uploadImage.username = #"myuser";
uploadImage.password = #"mypass";
//we set our data
uploadImage.sentData = ourImageData;
//the path needs to be absolute to the FTP root folder.
//full URL would be ftp://xxx.xxx.xxx.xxx/space.jpg
uploadImage.path = #"/space.jpg";
//we start the request
[uploadImage start];
}
-(void) requestCompleted:(WRRequest *) request{
//called if 'request' is completed successfully
NSLog(#"%# completed!", request);
}
-(void) requestFailed:(WRRequest *) request{
//called after 'request' ends in error
//we can print the error message
NSLog(#"%#", request.error.message);
}
-(BOOL) shouldOverwriteFileWithRequest:(WRRequest *)request {
//if the file (ftp://xxx.xxx.xxx.xxx/space.jpg) is already on the FTP server,the delegate is asked if the file should be overwritten
//'request' is the request that intended to create the file
return YES;
}
But I am not successfully upload file on FTP.
Also I am not getting any error.
So, How to upload file on FTP?
Related
My app offers the option to download 3430 high resolution images from our server, each image of size 50k - 600k bytes.
The original approach was to just download all of them - but we realized that gave a lot of NSURLErrorTimedOut errors and crashed our program. We then implemented it such that we download all of the images, but in batches of 100 images at a time. Someone on SO suggested we actually implement our download like this:
Create a list of all file URLs that need to be downloaded.
Write your code so that it downloads these URLs sequentially. I.e. do
not let it start downloading a file until the previous one has
finished (or failed and you decided to skip it for now).
Use NSURLSession's support for downloading an individual file to a
folder, don't use the code to get an NSData and save the file
yourself. That way, your application doesn't need to be running while
the download finishes.
Ensure that you can tell whether a file has already been downloaded or
not, in case your download gets interrupted, or the phone is restarted
in mid-download. You can e.g. do this by comparing their names (if
they are unique enough), or saving a note to a plist that lets you
match a downloaded file to the URL where it came from, or whatever
constitutes an identifying characteristic in your case.
At startup, check whether all files are there. If not, put the missing
ones in above download list and download them sequentially, as in #2.
Before you start downloading anything (and that includes downloading
the next file after the previous download has finished or failed), do
a reachability check using the Reachability API from Apple's
SystemConfiguration.framework. That will tell you whether the user has
a connection at all, and whether you're on WiFi or cellular (in
general, you do not want to download a large number of files via
cellular, most cellular connections are metered).
We create a list of all images to download here:
- (void)generateImageURLList:(BOOL)batchDownloadImagesFromServer
{
NSError* error;
NSFetchRequest* leafletURLRequest = [[[NSFetchRequest alloc] init] autorelease];
NSEntityDescription* leafletURLDescription = [NSEntityDescription entityForName:#"LeafletURL" inManagedObjectContext:managedObjectContext];
[leafletURLRequest setEntity:leafletURLDescription];
numberOfImages = [managedObjectContext countForFetchRequest:leafletURLRequest error:&error];
NSPredicate* thumbnailPredicate = [NSPredicate predicateWithFormat:#"thumbnailLocation like %#", kLocationServer];
[leafletURLRequest setPredicate:thumbnailPredicate];
self.uncachedThumbnailArray = [managedObjectContext executeFetchRequest:leafletURLRequest error:&error];
NSPredicate* hiResPredicate = [NSPredicate predicateWithFormat:#"hiResImageLocation != %#", kLocationCache];
[leafletURLRequest setPredicate:hiResPredicate];
self.uncachedHiResImageArray = [managedObjectContext executeFetchRequest:leafletURLRequest error:&error];
}
We use NSURLSession to download an individual image to a folder by calling hitServerForUrl and implementing didFinishDownloadingToURL:
- (void)hitServerForUrl:(NSURL*)requestUrl {
NSURLSessionConfiguration *defaultConfigurationObject = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration:defaultConfigurationObject delegate:self delegateQueue: nil];
NSURLSessionDownloadTask *fileDownloadTask = [defaultSession downloadTaskWithURL:requestUrl];
[fileDownloadTask resume];
}
- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(NSURL *)location {
if (isThumbnail)
{
leafletURL.thumbnailLocation = kLocationCache;
}
else
{
leafletURL.hiResImageLocation = kLocationCache;
}
// Filename to write to
NSString* filePath = [leafletURL pathForImageAtLocation:kLocationCache isThumbnail:isThumbnail isRetina:NO];
// If it's a retina image, append the "#2x"
if (isRetina_) {
filePath = [filePath stringByReplacingOccurrencesOfString:#".jpg" withString:#"#2x.jpg"];
}
NSString* dir = [filePath stringByDeletingLastPathComponent];
[managedObjectContext save:nil];
NSError* error;
[[NSFileManager defaultManager] createDirectoryAtPath:dir withIntermediateDirectories:YES attributes:nil error:&error];
NSURL *documentURL = [NSURL fileURLWithPath:filePath];
NSLog(#"file path : %#", filePath);
if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
//Remove the old file from directory
}
[[NSFileManager defaultManager] moveItemAtURL:location
toURL:documentURL
error:&error];
if (error){
//Handle error here
}
}
This code calls loadImage, which calls `hitServer:
-(void)downloadImagesFromServer{
[self generateImageURLList:NO];
[leafletImageLoaderQueue removeAllObjects];
numberOfHiResImageLeft = [uncachedHiResImageArray count];
for ( LeafletURL* aLeafletURL in uncachedHiResImageArray)
{
//// Do the same thing again, except set isThumb = NO. ////
LeafletImageLoader* hiResImageLoader = [[LeafletImageLoader alloc] initWithDelegate:self];
[leafletImageLoaderQueue addObject:hiResImageLoader]; // do this before making connection!! //
[hiResImageLoader loadImage:aLeafletURL isThumbnail:NO isBatchDownload:YES];
//// Adding object to array already retains it, so it's safe to release it here. ////
[hiResImageLoader release];
uncachedHiResIndex++;
NSLog(#"uncached hi res index: %ld, un cached hi res image array size: %lu", (long)uncachedHiResIndex, (unsigned long)[uncachedHiResImageArray count]);
}
}
- (void)loadImage:(LeafletURL*)leafletURLInput isThumbnail:(BOOL)isThumbnailInput isBatchDownload:(BOOL)isBatchDownload isRetina:(BOOL)isRetina
{
isRetina_ = isRetina;
if (mConnection)
{
[mConnection cancel];
[mConnection release];
mConnection = nil;
}
if (mImageData)
{
[mImageData release];
mImageData = nil;
}
self.leafletURL = leafletURLInput;
self.isThumbnail = isThumbnailInput;
NSString* location = (self.isThumbnail) ?leafletURL.thumbnailLocation :leafletURL.hiResImageLocation;
//// Check if the image needs to be downloaded from server. If it is a batch download, then override the local resources////
if ( ([location isEqualToString:kLocationServer] || (isBatchDownload && [location isEqualToString:kLocationResource])) && self.leafletURL.rawURL != nil )
{
//NSLog(#"final loadimage called server");
//// tell the delegate to get ride of the old image while waiting. ////
if([delegate respondsToSelector:#selector(leafletImageLoaderWillBeginLoadingImage:)])
{
[delegate leafletImageLoaderWillBeginLoadingImage:self];
}
mImageData = [[NSMutableData alloc] init];
NSURL* url = [NSURL URLWithString:[leafletURL pathForImageOnServerUsingThumbnail:self.isThumbnail isRetina:isRetina]];
[self hitServerForUrl:url];
}
//// if not, tell the delegate that the image is already cached. ////
else
{
if([delegate respondsToSelector:#selector(leafletImageLoaderDidFinishLoadingImage:)])
{
[delegate leafletImageLoaderDidFinishLoadingImage:self];
}
}
}
Currently, I'm trying to figure out how to download the images sequentially, such that we don't call hitServer until the last image is finished downloading. Do I need to be downloading in the background? Thank you for suggestions!
My app offers the option to download 3430 high resolution images from our server, each image of size 50k - 600k bytes.
This seems like a job for on-demand resources. Just turn these files into on-demand resources obtained from your own server, and let the system take care of downloading them in its own sweet time.
This sounds very much like an architectural issue. If you fire off downloads without limiting them of course you're going to start getting timeouts and other things. Think about other apps and what they do. Apps that give the user the ability to do multiple downloads often limit how may can occur at once. iTunes for example can queue up thousands of downloads, but only runs 3 at a time. Limiting to just one at a time will only slow things down for your users. You need a balance that consider your user's available bandwidth.
The other part of this is to again consider what your users want. Does every one of your uses want every single image? I don't know what you are offering them, but in most apps which access resources like images or music, it's up to the user what and when they download. Thus they only download what they are interested in. So I'd recommend only downloading what the users are viewing or have somehow requested they want to download.
I have use White Raccoon and Black Raccoon both to upload zip file on FTP server.
In White Raccoon I was not able to upload zip file, I always get serverTimeout error. So I tried to upload normal xml file with white raccoon, File is uploaded without any data(0 byte size). Here is the code
-(void)upload:(NSData*)data{
//the upload request needs the input data to be NSData
NSData * ourImageData = data;
//we create the upload request
//we don't autorelease the object so that it will be around when the callback gets called
//this is not a good practice, in real life development you should use a retain property to store a reference to the request
WRRequestUpload * uploadImage = [[WRRequestUpload alloc] init];
uploadImage.delegate = self;
//for anonymous login just leave the username and password nil
uploadImage.hostname = #"hostname";
uploadImage.username = #"username";
uploadImage.password = #"password";
//we set our data
uploadImage.sentData = ourImageData;
//the path needs to be absolute to the FTP root folder.
//full URL would be ftp://xxx.xxx.xxx.xxx/space.jpg
uploadImage.path = #"huge_test.zip";
//we start the request
[uploadImage start];
}
I am using this https://github.com/valentinradu/WhiteRaccoon
-As WhiteRaccoon is not working for me I have tried BlackRaccoon but it is not helping me to even upload a normal xml file, it just give me "Stream timed out with no response from server" error.
here is the code
- (IBAction) uploadFile :(NSData *)datas{
self.uploadData = [NSData dataWithData:datas];
//Here I am just Checking that DATA come from another method is proper or not. I got All thedata which I have passed from method
NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:#"Documents/test12121.xml"];
// Write the data to file
[datas writeToFile:path atomically:YES];
self.uploadFile = [[BRRequestUpload alloc] initWithDelegate: self];
//----- for anonymous login just leave the username and password nil
self.uploadFile.path = #"/test.xml";
self.uploadFile.hostname = #"hostname";
self.uploadFile.username = #"username";
self.uploadFile.password = #"password";
//we start the request
[self.uploadFile start];
}
- (long) requestDataSendSize: (BRRequestUpload *) request{
//----- user returns the total size of data to send. Used ONLY for percentComplete
return [self.uploadData length];
}
- (NSData *) requestDataToSend: (BRRequestUpload *) request{
//----- returns data object or nil when complete
//----- basically, first time we return the pointer to the NSData.
//----- and BR will upload the data.
//----- Second time we return nil which means no more data to send
NSData *temp = self.uploadData; // this is a shallow copy of the pointer
self.uploadData = nil; // next time around, return nil...
return temp;
}
-(void) requestFailed:(BRRequest *) request{
if (request == uploadFile)
{
NSLog(#"%#", request.error.message);
uploadFile = nil;
}
NSLog(#"%#", request.error.message);
}
-(BOOL) shouldOverwriteFileWithRequest: (BRRequest *) request
{
//----- set this as appropriate if you want the file to be overwritten
if (request == uploadFile)
{
//----- if uploading a file, we set it to YES
return YES;
}
//----- anything else (directories, etc) we set to NO
return NO;
}
- (void) percentCompleted: (BRRequest *) request
{
NSLog(#"%f completed...", request.percentCompleted);
}
-(void) requestCompleted: (BRRequest *) request
{
//----- handle Create Directory
if (request == uploadFile)
{
NSLog(#"%# completed!", request);
uploadFile = nil;
}
}
I am using https://github.com/lloydsargent/BlackRaccoon.
I have even changed the timeout limit upto 60 but its not working for me. Please anyone can help me?Anyone knows another way to upload zip file to FTP server, then please let me know.
Thanks in advance.
I am trying to write an application that will pull down the contents of a Google Docs file as HTML to allow me to edit it inside the app. After editing the html file I then want to upload the changes back to Google Drive and update the contents of the original Google Docs file. I have been able to pull down the Google Docs file but am not able to upload my changes back to the server.
Can you please help to understand why this error is happening ? And possibly advise me on a fix for the issue ?
I am getting the following NSError:
Error Domain=com.google.GTLJSONRPCErrorDomain Code=500 "The operation couldn’t be completed. (Internal Error)" UserInfo=0x157a8610 {error=Internal Error, GTLStructuredError=GTLErrorObject 0x16846f60: {message:"Internal Error" code:500 data:[1]}, NSLocalizedFailureReason=(Internal Error)}
2014-06-17 12:11:35.188 DrEdit[548:60b] Error UserInfo: {
GTLStructuredError = "GTLErrorObject 0x16846f60: {message:\"Internal Error\" code:500 data:[1]}";
NSLocalizedFailureReason = "(Internal Error)";
error = "Internal Error";
}
Please code being executed when uploading below:
- (void)saveFile {
GTLUploadParameters *uploadParameters = nil;
// Only update the file content if different.
if (![self.originalContent isEqualToString:self.textView.text]) {
// NSData *fileContent =
// [self.textView.text dataUsingEncoding:NSUTF8StringEncoding];
NSAttributedString *s = self.textView.attributedText;
NSDictionary *documentAttributes = [NSDictionary dictionaryWithObjectsAndKeys:NSHTMLTextDocumentType, NSDocumentTypeDocumentAttribute, nil];
NSData *htmlData = [s dataFromRange:NSMakeRange(0, s.length) documentAttributes:documentAttributes error:NULL];
// NSString *htmlString = [[NSString alloc] initWithData:htmlData encoding:NSUTF8StringEncoding];
// NSData *fileContent = [self.textView.attributedText convertToData];
uploadParameters = [GTLUploadParameters uploadParametersWithData:htmlData MIMEType:#"text/html"];
// [GTLUploadParameters uploadParametersWithData:fileContent MIMEType:#"text/plain"];
// [GTLUploadParameters uploadParametersWithData:fileContent MIMEType:#"application/vnd.google-apps.document"];
}
self.driveFile.title = self.updatedTitle;
GTLQueryDrive *query = nil;
if (self.driveFile.identifier == nil || self.driveFile.identifier.length == 0) {
// This is a new file, instantiate an insert query.
query = [GTLQueryDrive queryForFilesInsertWithObject:self.driveFile
uploadParameters:uploadParameters];
} else {
// This file already exists, instantiate an update query.
query = [GTLQueryDrive queryForFilesUpdateWithObject:self.driveFile
fileId:self.driveFile.identifier
uploadParameters:uploadParameters];
}
UIAlertView *alert = [DrEditUtilities showLoadingMessageWithTitle:#"Saving file"
delegate:self];
[self.driveService executeQuery:query completionHandler:^(GTLServiceTicket *ticket,
GTLDriveFile *updatedFile,
NSError *error) {
[alert dismissWithClickedButtonIndex:0 animated:YES];
if (error == nil) {
self.driveFile = updatedFile;
self.originalContent = [self.textView.text copy];
self.updatedTitle = [updatedFile.title copy];
[self toggleSaveButton];
[self.delegate didUpdateFileWithIndex:self.fileIndex
driveFile:self.driveFile];
[self doneEditing:nil];
} else {
NSLog(#"An error occurred: %#", error);
NSLog(#"Error UserInfo: %#", error.userInfo);
[DrEditUtilities showErrorMessageWithTitle:#"Unable to save file"
message:[error description]
delegate:self];
}
}];
}
Thanks,
Michael
Its not possible to write html to a gdoc programmatically.
Currently its only possible to manually paste html but not with an api unfortunately (and strangely)
I was able to solve this problem by changing the property convert to YES on the GTLQueryDrive class. The documentation states that it will attempt to convert the file being uploaded into a native Google Docs format.
Hope this helps. Please see the method I am describing from the SDK below:
// Method: drive.files.update
// Updates file metadata and/or content
// Required:
// fileId: The ID of the file to update.
// Optional:
**// convert: Whether to convert this file to the corresponding Google Docs
// format. (Default false)**
// newRevision: Whether a blob upload should create a new revision. If false,
// the blob data in the current head revision will be replaced. (Default
// true)
// ocr: Whether to attempt OCR on .jpg, .png, or .gif uploads. (Default false)
// ocrLanguage: If ocr is true, hints at the language to use. Valid values are
// ISO 639-1 codes.
// pinned: Whether to pin the new revision. (Default false)
// setModifiedDate: Whether to set the modified date with the supplied
// modified date. (Default false)
// sourceLanguage: The language of the original file to be translated.
// targetLanguage: Target language to translate the file to. If no
// sourceLanguage is provided, the API will attempt to detect the language.
// timedTextLanguage: The language of the timed text.
// timedTextTrackName: The timed text track name.
// updateViewedDate: Whether to update the view date after successfully
// updating the file. (Default true)
// Upload Parameters:
// Maximum size: 10GB
// Accepted MIME type(s): */*
// Authorization scope(s):
// kGTLAuthScopeDrive
// kGTLAuthScopeDriveFile
// Fetches a GTLDriveFile.
+ (id)queryForFilesUpdateWithObject:(GTLDriveFile *)object
fileId:(NSString *)fileId
uploadParameters:(GTLUploadParameters *)uploadParametersOrNil;
Thanks,
Michael
During downloading multiple files using following asynchronous method of AWS iOS, I want to keep track which image is downloaded.
Following code is used for asynchronous image download.
S3TransferManager *tm = [S3TransferManager new];
S3TransferOperation *downloadFileOperation = [tm downloadFile:storeFilePath bucket:Bucket key:downloadPath];
Above method is in for loop, so there could be n images to download.
Delegate method which notify image is downloaded
-(void)request:(AmazonServiceRequest *)request didCompleteWithResponse:(AmazonServiceResponse *)response { }
But I did not find anything, using which I can manage that which actual image is downloaded. whether it was the firstID image or second one.
Any idea on where I can put some extra data , which can be received on image download ?
You can set requestTag:
S3PutObjectRequest *putObjectRequest = [ [ S3PutObjectRequest alloc ] initWithKey:keyFile inBucket:self.s3BucketName ];
putObjectRequest.requestTag = urlStringFile;
putObjectRequest.filename = fileName;
and then analyse it:
- (void)request:(AmazonServiceRequest*) request didCompleteWithResponse:(AmazonServiceResponse*) response
{
NSLog(#"Upload finished. RequestTag = %#", request.requestTag);
}
As far as, I have to only download content from Amazon s3, I used ASIHTTPRequest.
(Though this is not maintained since 2011, but I found its very useful and easy to use for my app).
Code Example,
// Initialize network Queue.
ASINetworkQueue *networkQueue = [[ASINetworkQueue alloc] init];
[networkQueue reset];
[networkQueue setRequestDidFinishSelector:#selector(requestDone:)]; //This is where download completion will be notified.
//Initialize Request.
ASIS3ObjectRequest *request = [ASIS3ObjectRequest requestWithBucket:#"Bucket_Name" key:#"/Path/file"];
This is what I was looking, I need all the information about what I am downloading on download completion. This userInfo contains all the data, which is available on download completion.
NSMutableDictionary *userInfo = [[NSMutableDictionary alloc] initWithObjectsAndKeys:#"Data", #"Key", nil];
request.userInfo = userInfo;
userInfo = nil;
// End of userInfo set.
[networkQueue addOperation:request]; // add request in ASINetworkQueue object. We can also add multiple request here.
And last,
[networkQueue go]; // This will start downloading.
// Delegate method, where download completion will be notified
- (void)requestDone:(ASIS3Request *)request
{
NSLog(#"UserInfo : %#", request.userInfo); // Request data, to manage which request is complete.
}
Done.
I am working with Blackraccoon FTP client to do FTP operations,working with ARC.but i am getting leaks in instruments.
but there were no leaks in sample application here is my code
BRRequestCreateDirectory *createEventDir = [BRRequestCreateDirectory initWithDelegate:nil];
//NSString *EventCode = [[NSUserDefaults standardUserDefaults] stringForKey:kEventCodeKey];
createEventDir.path = #"/12341234";
createEventDir.hostname = #"media.example.com/httpdocs/events/";
createEventDir.username = #"badboy";
createEventDir.password = #"hai!";
createEventDir.tag = 103;
[createEventDir start];
createEventDir = nil;
sample code from FTP clent Blackraccoon FTP client
leaks showing in instruments like,but i am using ARC
can any one help me to solve this prob..
I ported and heavily modified BlackRaccoon. It is designed to use delegates. In other words, delegates are required.
BRRequestCreateDirectory *createEventDir = [BRRequestCreateDirectory initWithDelegate:nil];
//NSString *EventCode = [[NSUserDefaults standardUserDefaults] stringForKey:kEventCodeKey];
createEventDir.path = #"/12341234";
createEventDir.hostname = #"media.example.com/httpdocs/events/";
createEventDir.username = #"badboy";
createEventDir.password = #"hai!";
createEventDir.tag = 103;
[createEventDir start];
createEventDir = nil;
Is incorrect. It starts a lot of things going and then deletes the object - the action is undefined.
Instead you need something as indicated in the code that I provided (that doesn't leak).
First, the class that uses the ftp needs to have BRRequestDelegate to indicate the delegate protocol.
- (IBAction) createDirectory:(id)sender
{
//----- createEventDir must be a variable in your class...
createEventDir = [BRRequestCreateDirectory initWithDelegate: self];
createEventDir.path = #"/12341234;
createEventDir.hostname = #"media.example.com/httpdocs/events/";
createEventDir.username = #"badboy";
createEventDir.password = #"hai!";
[createEventDir start];
//----- createEventDir MUST NOT BE DELETED OR SET TO NIL HERE
}
Then you have to have the two delegates (at a minimum):
-(void) requestCompleted: (BRRequest *) request
{
//----- handle Create Directory
if (request == createEventDir)
{
NSLog(#"%# completed!", request);
//----- everything is done, NOW you can set it to nil
createEventDir = nil;
}
}
-(void) requestFailed: (BRRequest *) request
{
if (request == createEventDir)
{
NSLog(#"%#", request.error.message);
//----- everything is done, NOW you can set it to nil
createEventDir = nil;
}
}
If you go back and look at my test code you'll see how things work. If you are still having issues, post in the issues on http://github.com/lloydsargent/BlackRaccoon
Hopefully this will get you past your problem.