I need to find a good control for VB.Net to upload big files to an FTP server:
Can upload files up to 10GB
Uses passive mode
Provides feedback during upload, to make sure it's going OK
Can cancel and resume
Up to two concurrent connections
I read about WebClient + NetworkCredential, but it doesn't seem to provide progress infos. There are also the FTPWebRequest/FTPWebResponse classes from WebRequest/WebResponse, as well as WebClient.UploadFileAsync.
Which free/affordable solution would you recommend?
Thank you.
You should expect the following to be provided by every FTP client classes/controls, as they are supported by FTP the protocol.
Can upload files up to 10GB
Uses passive mode
Can cancel and resume
The following requires you to make good use of the classes/controls, for example, use two client classes/controls at the same time.
Up to two concurrent connections
RemObjects has a free pack called Internet Pack, where you can find a class called FtpClient,
http://www.remobjects.com/ip.aspx
http://wiki.remobjects.com/wiki/FtpClient_Class
It supports all FTP features above, and it provides upload progress too, via events. You can read its documentation or simply write a small program to test it out.
To support multiple connections to the same FTP server, you can create multiple instances of this class.
Related
I have a task to do. I need to build a WCF service that allow a client to import a file inside a database using the server backend. In order to do this, i need to communicate to the server, the setting, the events needed to start and set the importation and most importantly the file to import. Now the problem is that these files can be extremely large (much bigger then 2gb), so it's not possible to send them via browser as they are. The only thing that comes into my mind is to split these files and send them one by one to the server.
I have also another requirement: i need to be 100% sure that this file are not corrupted, so i need to implement also a sort of policy for correction and possibly recover of the errors.
Do you know if there is a sort of API or dll that can help me to achieve my goals or is it better to write the code by myself? And in this case, which would be the optimal size of the packets?
On my BizTalk server I use several different credentials to connect to internal and external systems. There is an upcoming task to change the passwords for a lot of systems and I'm searching for a solution to simplify this task on my BizTalk server.
Is there a way that I could adjust the File/FTP adapters to extract the information from an XML file so that I can change it only in the XML file and everything will be updated or is there an alternative that I could use such as PowerShell?
Did someone else had this task as well?
I rather don't want to create a custom adapter but if there is no alternative I will go for that one. Using dynamic credentials for the send port can be solved with Orchestration but I need this as well for the receive port.
You can export the bindings of all your applications. All the passwords for the FTP and File Adapter will be masked out with a series off * (asterisks).
You could then edit your binding down to just those ports you want to update, replace the masked out passwords with the correct passwords, and when you want the passwords changed, import them.
Unfortunately unless you have already prepared tokenised binding files the above is a manual effort.
I was going to recommend that you take a look at Enterprise Single Sign-On, but on second thoughts, I think you probably just need to 'bite the bullet' and make the change in the various Adapters.
ESSO would be beneficial if you have a single Adapter with multiple endpoints/credentials, but I infer from your question that isn't the case (i.e. you're not just using a single adapter). I also don't think re-writing the adapters to include functionality to read usernames/passwords from file is feasible IMHO - just changing the passwords would be much faster, by an order of weeks or months ;-)
One option that is available to you however, depending on which direction the adapter is being used: if you need to change credentials on Send Adapters, you should consider setting usernames/passwords at runtime via the various Adapter Property Schemas (see http://msdn.microsoft.com/en-us/library/aa560564.aspx for the FTP Adapter Properties for example). You could then easily create an encoding Send Pipeline Component that reads an Xml file containing credentials and updates the message context properties accordingly, the message would then be send with the appropriate credentials to the required endpoint.
There is also the option of using ESSO as your (encrypted) config store instead of Xml files / database etc. Richard Seroter has a really good post on this from way back in 2007 (its still perfectly valid tho.)
I was wanting to use a file sharing server to keep certain files up-to-date and constant across multiple instances of my application across multiple computers - like (for example) writing a multiplayer game, which stores all the player's positions in a text file, and uses something like Dropbox to keep the text file constant across all the applications, and each application instance can change the file with that application's player's position, and then the rest of the applications can update accordingly. This is only an example, and is not what I intend to do using this technology. What I want to do does not rely on fast sharing of data very quickly - but only periodically downloading and updating the text file.
I was wondering how I might be able to do this using the Dropbox API for Objective-C without prompting the user for any Dropbox username/password - just store a single Dropbox account's login information, log into it automatically and update/download the file stored on it?
From what I have found out from experimenting, Dropbox prompts users for their passwords via a web-broswer, and is designed to accommodate multiple accounts, whereas I only need to accommodate the 'Server' account.
So, is there anyway to do this sort of thing using the Dropbox API, or should I use something else. Or do I need to find out how to write my own server. Using some sort of file sharing API seems a lot easier to me than writing an actual server.
Thanks for any help,
Ben
You might think about using Google App Engine (GAE). I had a similar requirement recently and I'm thinking this is a good option when you want centralized data. Plus you can do the no-browser account login by using your own custom authentication, or I think it's even possible via OAuth? Depends on how sensitive the data is I guess. I just rolled my own.
From my research I found that using Dropbox as a server has some issues with scalability, since you'll be limited to maybe 5,000 calls per day. source It's built on Amazon S3, so you could also look at using that directly.
GAE lifts that limit up to 675,000, but can be increased up to 91 million for free.
https://developers.google.com/appengine/docs/quotas
I did find an open-source project for doing this with Java, alternative you could look at Python example
I've written a daemon that continuously checks for updated files and syncs them. I wrote it for my own file manager iOS app. You can find the implementation here:
https://github.com/H2CO3/MyFile/tree/master/DropboxDaemon
I'm personally not an iOS developer but I came across this question while looking for something else and thought I would offer up another potential solution to the OP's question.
Microsoft just released something called Azure Mobile Services which supports iOS development (among other platforms). It's basically a convenient way to set up a back end system complete with push notifications, authentication, etc. without rolling your own. You don't need to know anything about Azure or servers as the setup process walks you through most of it. It is new so keep that in mind, but it looks promising for situations like this.
Here's a 10 minute video explaining how to use it with an iOS developed app along with links to more documentation:
http://channel9.msdn.com/posts/iOS-Support-in-Windows-Azure-Mobile-Services/
Hope this helps.
I have a Report Generator which is an intranet web application generates some reports. There are about 100 reports. Those reports are of PDF and Excel type. And I want to ensure that all these reports are generated without any issue. This is a daily job.
Each report takes an average of 2 min. Manual checking process takes 200 min.
As this is a testing process and not bothered about the contents in the files I want to automate the process.
We are using Selenium test cases to test our web application.
Is there any way to Save these reports on my location disk using Selenium ?
To answer your question, no. Browsers won't allow it, unless a user chooses to upload. But even if there is a way, i would advise against using it.
Even if you can do this by any means its HIGHLY NOT RECOMMENDED
This will be a huge security threat and it won't be allowed. Javascript is inside a security sandbox and won't allow these kind of things.
What if the server is sending a potentially dangerous file that might affect the client system?
See JavaScript security
At best, you could display the file download prompt. The browser's security (and common sense :)) won't allow you to do anything more. If you absolutely must do unsupervised file downloads, you could use some kind of ActiveX, or a Java applet.
I am looking for information on using mstscax.dll in VB. The goal is to create a utility that logs into a remote service in the same manner as remote desktop. However, my utility is not required to show the desktop.
I have a series of commands that I will start off with that will look for users, reset logins, shadow, and message. I have been using a batch file on my RDP to perform these functions, but we are already looking for more functionality and power than what the batch commands can offer.
I am googling 'mstscax.dll' but the results have been less than satisfactory although I continue to search. Does anyone have any good references? Is this even going to be possible?
If you are looking to list or perform operations on remote desktop sessions, you might find the Cassia library helpful. The library can list users logged on to a server, disconnect or logoff sessions, shadow sessions, and display message boxes in a session, among other things. (Note that the shadowing functionality requires a pre-release version of the library available on the project's build server -- use the artifacts link.)
I think you're supposed to use the msrdp.ocx control rather than that dll, though I've personally never used either so can't say for sure.
Edit: Add link
Here's a codeproject article about automating RDP:
http://www.codeproject.com/KB/cs/RemoteDesktop_CSharpNET.aspx