Aspera downloading with ascli using the Proxy configuration

[xavierv79]

Hi Team,

We are using "ascli " to download files from aspera with https gateway. But additionally we need the proxy configuration of network to be passed with below.

ascli shares files download --to-folder=. share/file --transfer=httpgw --transfer�info=@json:'{"url":"https://example.com/aspera/http-gwy"}’

Please provide the correct syntax to pass the proxy IP, port , username and pass with above command.

[laurent-martin]

This is the correct syntax, but I notice that the - in. --transfer-info in your example is wrong. Makefile it is ASCII hyphen character, not unicode.

Are you executing on a shell like bash , or on window ?

Note that if the user is always using a proxy, he can define this in the configuration file.

Ideally provide a log of the error you get.

[xavierv79]

Hi Laurent,
Thank you We are using in Linux bash.
Need your help additionally for the Proxy. syntax to pass the proxy IP, port , username and pass with above command

[laurent-martin]

Check documentation here:
https://github.com/IBM/aspera-cli?tab=readme-ov-file#fasp-proxy-forward-for-transfers

syntax is:

{"proxy":"dnat://username:[email protected]:9091"}

in command line:

--ts=@json:'{"proxy":"dnat://username:[email protected]:9091"}'

[laurent-martin]

So, do you want to use both HTTP Gateway and Aspera forward proxy ????

[xavierv79]

Hi Laurent,
We need to use both HTTP Gateway and proxy, since Internet and allowed ports will be through proxy.

[laurent-martin]

I see,
Well, typically, if an http gateway is used, the http gateway has direct internet connection.
if the use cannot reach the http gateway, then he can use an http proxy to reach the http gateway.
Now, if the http gateway does not have internet access, and needs itself to use a forward fasp proxy .. Mmm...

[laurent-martin]

Here typical paths:

[laurent-martin]

Are you asking for the purple path ?

[xavierv79]

Hi Laurent,

Here Aspera Server is ours and the end user need to use their Proxy . End user need to use their proxy with our http gateway during the https transfer through ascli.

[laurent-martin]

If the end user has an Aspera Forward Proxy, it does not make sense because it means they will use FASP, and so do not need the HTTP Gateway.

If the remote user needs to use the HTTP Gateway, mays they have an HTTP proxy (not aspera proxy) , can you confirm you talk about HTTP proxy on client side, like purple path below ?

If so, the doc is:

https://github.com/IBM/aspera-cli?tab=readme-ov-file#proxy-for-rest-and-http-gateway

Basically, ascli uses Ruby's HTTP library, and proxy rules apply.

So, the syntax should be (env var is lowercase):

export http_proxy=http://username:password@proxy_host:proxy_port

[xavierv79]

Hi Laurent,

Yes it's like purple path but instead of HSTS they want use aspera gateway, since aspera connect port not allowed form their end.

[laurent-martin]

Ok, yes, the purple path shows: ascli -> HTTP forward proxy -> HTTP GW -> HSTS

on bash, the env var can also be provided on the command line like this:

http_proxy=http://username:password@host:port ascli shares files download --to-folder=. share/file --transfer=httpgw --transfer-info=@json:'{"url":"https://example.com/aspera/http-gwy"}’

[xavierv79]

Hi Laurent,
Thank you very much for your help. Let me check with end user if this resolves their query .

[laurent-martin]

Note: next version (not yet released) will have option --http-proxy= which behaves like env var http_proxy.

[xavierv79]

Hi Laurent,
Thank for the Update. Please let me know when the version would be released approximately.

[laurent-martin]

@xavierv79 , did you test version 4.18.1 ?