transfer

NSURLSession: uploading assets with background transfer

纵饮孤独 提交于 2019-11-27 06:21:15
问题 What's the best approach to use background transfer to upload assets from gallery? Seems like uploadTaskWithRequest:fromData: doesn't work with NSURLSession created with backgroundSessionConfiguration since it causes an exception: "Terminating app due to uncaught exception 'NSGenericException', reason: 'Upload tasks in background sessions must be from a file". Judging from the exception description background transfer shouldn't work with streamed upload tasks too. Fair enough.

Move files directly from one S3 account to another?

橙三吉。 提交于 2019-11-27 04:57:15
问题 Pretty basic question but I haven't been able to find an answer. Using Transit I can "move" files from one S3 bucket on one AWS account to another S3 bucket on another AWS account, but what it actually does is download the files from the first then upload them to the second. Is there a way to move files directly from one S3 account to another without downloading them in between? 回答1: If you are just looking for a ready made solution there are a few solutions out there that can do this. Bucket

Java server side sending file with resume support?

我的梦境 提交于 2019-11-27 02:58:49
问题 I am trying to allow my java server to transfer a file where a web browser can download. However, I want the browser if they pause and resume the file transfer to work and not start the download all over again. Anyone know java code for the server side to fix this issue? 回答1: There are two parts to supporting resumable downloads: Your response needs to return the Accept-Ranges and Content-Range headers You need to write code that can then handle the HTTP Range headers and If-Range to know

Content Transfer Encoding 7bit or 8 bit

帅比萌擦擦* 提交于 2019-11-26 23:47:06
While sending email content, it is required to set "Content Transfer Encoding" header. I observed many headers of emails that I received. Some emails using "7bit" and some are using "8bit". What is the difference between these two? Which is recommended? Is there any special encoding required for email body in order to set these headers? It can be a bit dense to read, but the "Content-Transfer-Encoding" section of RFC 1341 has all of the details: http://www.w3.org/Protocols/rfc1341/5_Content-Transfer-Encoding.html The situation kinda goes from bad to worse. Here's my summary: Background SMTP,

Client-Server: File transfer from Android to PC connected via socket

纵饮孤独 提交于 2019-11-26 19:38:09
问题 I'm trying to send a picture I choose from the gallery on my phone, and send that picture from the phone to my PC, when I click on the button it should take the picture's path and put it in a file, and transfer it to my PC. I've checked the code on my PC - for both sides - and it worked totally fine. When I test it out, nothing happens! Here is the code: Server side: import java.io.*; import java.net.*; public class FileServer { public static void main(String[] args) throws IOException { int

SFTP file lock mechanism

 ̄綄美尐妖づ 提交于 2019-11-26 16:42:20
How can I make sure that a file uploaded through SFTP (in a Linux base system) stays locked during the transfer so an automated system will not read it? Is there an option on the client side? Or server side? SFTP protocol supports locking since version 5. See specification . You didn't specify, what SFTP server are you using. So I'm assuming the most widespread one, the OpenSSH. The OpenSSH supports SFTP version 3 only, so it does not support locking. Anyway, even if your server supported file locking, most SFTP clients/libraries won't support SFTP version 5. Or even if they do, they won't

Content Transfer Encoding 7bit or 8 bit

六眼飞鱼酱① 提交于 2019-11-26 07:56:52
问题 While sending email content, it is required to set \"Content Transfer Encoding\" header. I observed many headers of emails that I received. Some emails using \"7bit\" and some are using \"8bit\". What is the difference between these two? Which is recommended? Is there any special encoding required for email body in order to set these headers? 回答1: It can be a bit dense to read, but the "Content-Transfer-Encoding" section of RFC 1341 has all of the details: http://www.w3.org/Protocols/rfc1341

SFTP file lock mechanism

陌路散爱 提交于 2019-11-26 06:02:57
问题 How can I make sure that a file uploaded through SFTP (in a Linux base system) stays locked during the transfer so an automated system will not read it? Is there an option on the client side? Or server side? 回答1: SFTP protocol supports locking since version 5. See specification. You didn't specify, what SFTP server are you using. So I'm assuming the most widespread one, the OpenSSH. The OpenSSH supports SFTP version 3 only, so it does not support locking. Anyway, even if your server supported